diff options
1550 files changed, 24295 insertions, 12730 deletions
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 8266c03eaa7..f539b64d8c8 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -117,12 +117,12 @@ jobs: with: fetch-depth: 2 - # Free up disk space on Linux and Windows by removing preinstalled components that + # Free up disk space on Linux by removing preinstalled components that # we do not need. We do this to enable some of the less resource # intensive jobs to run on free runners, which however also have # less disk space. - name: free up disk space - run: src/ci/scripts/free-disk-space.sh + run: src/ci/scripts/free-disk-space-linux.sh if: matrix.free_disk # If we don't need to free up disk space then just report how much space we have @@ -223,11 +223,6 @@ jobs: cd src/ci/citool CARGO_INCREMENTAL=0 CARGO_TARGET_DIR=../../../build/citool cargo build - - name: wait for Windows disk cleanup to finish - if: ${{ matrix.free_disk && startsWith(matrix.os, 'windows-') }} - run: | - python3 src/ci/scripts/free-disk-space-windows-wait.py - - name: run the build run: | set +e diff --git a/Cargo.lock b/Cargo.lock index 51427f57822..90f73784cb4 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -152,9 +152,9 @@ dependencies = [ [[package]] name = "anyhow" -version = "1.0.98" +version = "1.0.99" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "e16d2d3311acee920a9eb8d33b8cbc1787ce4a264e85f964c2404b969bdcd487" +checksum = "b0674a1ddeecb70197781e945de4b3b8ffb61fa939a5597bcf48503737663100" [[package]] name = "ar_archive_writer" @@ -204,7 +204,7 @@ dependencies = [ "rustc-hash 2.1.1", "serde", "serde_derive", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -266,9 +266,9 @@ dependencies = [ [[package]] name = "bitflags" -version = "2.9.1" +version = "2.9.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1b8e56985ec62d17e9c1001dc89c88ecd7dc08e47eba5ec7c29c7b5eeecde967" +checksum = "34efbcccd345379ca2868b2b2c9d3782e9cc58ba87bc7d79d5b53d9c9ae6f25d" [[package]] name = "blake3" @@ -315,7 +315,7 @@ dependencies = [ "serde_json", "sha2", "tar", - "toml 0.5.11", + "toml 0.7.8", "xz2", ] @@ -336,7 +336,7 @@ dependencies = [ "curl", "indexmap", "serde", - "toml 0.5.11", + "toml 0.7.8", ] [[package]] @@ -421,7 +421,7 @@ dependencies = [ "serde", "serde-untagged", "serde-value", - "thiserror 2.0.12", + "thiserror 2.0.15", "toml 0.8.23", "unicode-xid", "url", @@ -453,7 +453,7 @@ dependencies = [ "semver", "serde", "serde_json", - "thiserror 2.0.12", + "thiserror 2.0.15", ] [[package]] @@ -518,9 +518,9 @@ dependencies = [ [[package]] name = "clap" -version = "4.5.43" +version = "4.5.45" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "50fd97c9dc2399518aa331917ac6f274280ec5eb34e555dd291899745c48ec6f" +checksum = "1fc0e74a703892159f5ae7d3aac52c8e6c392f5ae5f359c70b5881d60aaac318" dependencies = [ "clap_builder", "clap_derive", @@ -538,9 +538,9 @@ dependencies = [ [[package]] name = "clap_builder" -version = "4.5.43" +version = "4.5.44" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c35b5830294e1fa0462034af85cc95225a4cb07092c088c55bda3147cfcd8f65" +checksum = "b3e7f4214277f3c7aa526a59dd3fbe306a370daee1f8b7b8c987069cd8e888a8" dependencies = [ "anstream", "anstyle", @@ -550,14 +550,14 @@ dependencies = [ [[package]] name = "clap_derive" -version = "4.5.41" +version = "4.5.45" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ef4f52386a59ca4c860f7393bcf8abd8dfd91ecccc0f774635ff68e92eeef491" +checksum = "14cb31bb0a7d536caef2639baa7fad459e15c3144efefa6dbd1c84562c4739f6" dependencies = [ "heck 0.5.0", "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -720,7 +720,7 @@ dependencies = [ "nom", "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -907,9 +907,9 @@ dependencies = [ [[package]] name = "curl" -version = "0.4.48" +version = "0.4.49" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "9e2d5c8f48d9c0c23250e52b55e82a6ab4fdba6650c931f5a0a57a43abda812b" +checksum = "79fc3b6dd0b87ba36e565715bf9a2ced221311db47bd18011676f24a6066edbc" dependencies = [ "curl-sys", "libc", @@ -922,9 +922,9 @@ dependencies = [ [[package]] name = "curl-sys" -version = "0.4.82+curl-8.14.1" +version = "0.4.83+curl-8.15.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c4d63638b5ec65f1a4ae945287b3fd035be4554bbaf211901159c9a2a74fb5be" +checksum = "5830daf304027db10c82632a464879d46a3f7c4ba17a31592657ad16c719b483" dependencies = [ "cc", "libc", @@ -937,9 +937,9 @@ dependencies = [ [[package]] name = "cxx" -version = "1.0.166" +version = "1.0.168" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b5287274dfdf7e7eaa3d97d460eb2a94922539e6af214bda423f292105011ee2" +checksum = "7aa144b12f11741f0dab5b4182896afad46faa0598b6a061f7b9d17a21837ba7" dependencies = [ "cc", "cxxbridge-cmd", @@ -951,9 +951,9 @@ dependencies = [ [[package]] name = "cxx-build" -version = "1.0.166" +version = "1.0.168" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "65f3ce027a744135db10a1ebffa0863dab685aeef48f40a02c201f5e70c667d3" +checksum = "12d3cbb84fb003242941c231b45ca9417e786e66e94baa39584bd99df3a270b6" dependencies = [ "cc", "codespan-reporting", @@ -961,40 +961,40 @@ dependencies = [ "proc-macro2", "quote", "scratch", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] name = "cxxbridge-cmd" -version = "1.0.166" +version = "1.0.168" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a07dc23f2eea4774297f4c9a17ae4065fecb63127da556e6c9fadb0216d93595" +checksum = "3fa36b7b249d43f67a3f54bd65788e35e7afe64bbc671396387a48b3e8aaea94" dependencies = [ "clap", "codespan-reporting", "indexmap", "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] name = "cxxbridge-flags" -version = "1.0.166" +version = "1.0.168" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "f7a4dbad6171f763c4066c83dcd27546b6e93c5c5ae2229f9813bda7233f571d" +checksum = "77707c70f6563edc5429618ca34a07241b75ebab35bd01d46697c75d58f8ddfe" [[package]] name = "cxxbridge-macro" -version = "1.0.166" +version = "1.0.168" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a9be4b527950fc42db06163705e78e73eedc8fd723708e942afe3572a9a2c366" +checksum = "ede6c0fb7e318f0a11799b86ee29dcf17b9be2960bd379a6c38e1a96a6010fff" dependencies = [ "indexmap", "proc-macro2", "quote", "rustversion", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -1018,7 +1018,7 @@ dependencies = [ "proc-macro2", "quote", "strsim", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -1029,7 +1029,7 @@ checksum = "fc34b93ccb385b40dc71c6fceac4b2ad23662c7eeb248cf10d529b7e055b6ead" dependencies = [ "darling_core", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -1061,7 +1061,7 @@ checksum = "ef941ded77d15ca19b40374869ac6000af1c9f2a4c0f3d4c70926287e6364a8f" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -1082,7 +1082,7 @@ dependencies = [ "darling", "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -1092,7 +1092,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "ab63b0e2bf4d5928aff72e83a7dace85d7bba5fe12dcc3c5a572d78caffd3f3c" dependencies = [ "derive_builder_core", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -1104,7 +1104,7 @@ dependencies = [ "darling", "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -1129,16 +1129,16 @@ version = "6.0.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "16f5094c54661b38d03bd7e50df373292118db60b585c08a411c6d840017fe7d" dependencies = [ - "dirs-sys 0.5.0", + "dirs-sys", ] [[package]] name = "dirs" -version = "5.0.1" +version = "6.0.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "44c45a9d03d6676652bcb5e724c7e988de1acad23a711b5217ab9cbecbec2225" +checksum = "c3e8aa94d75141228480295a7d0e7feb620b1a5ad9f12bc40be62411e38cce4e" dependencies = [ - "dirs-sys 0.4.1", + "dirs-sys", ] [[package]] @@ -1153,18 +1153,6 @@ dependencies = [ [[package]] name = "dirs-sys" -version = "0.4.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "520f05a5cbd335fae5a99ff7a6ab8627577660ee5cfd6a94a6a929b52ff0321c" -dependencies = [ - "libc", - "option-ext", - "redox_users 0.4.6", - "windows-sys 0.48.0", -] - -[[package]] -name = "dirs-sys" version = "0.5.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "e01a3366d27ee9890022452ee61b2b63a67e6f13f58900b651ff5665f0bb1fab" @@ -1194,7 +1182,7 @@ checksum = "97369cbbc041bc366949bc74d34658d6cda5621039731c6310521892a3a20ae0" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -1379,7 +1367,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "54f0d287c53ffd184d04d8677f590f4ac5379785529e5e08b1c8083acdd5c198" dependencies = [ "memchr", - "thiserror 2.0.12", + "thiserror 2.0.15", ] [[package]] @@ -1539,9 +1527,9 @@ dependencies = [ [[package]] name = "glob" -version = "0.3.2" +version = "0.3.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a8d1add55171497b4705a648c6b583acafb01d58050a51727785f0b2c8e0a2b2" +checksum = "0cc23270f6e1808e30a928bdc84dea0b9b4136a8bc82338574f23baf47bbd280" [[package]] name = "globset" @@ -1855,7 +1843,7 @@ checksum = "1ec89e9337638ecdc08744df490b221a7399bf8d164eb52a665454e60e075ad6" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -2044,7 +2032,7 @@ checksum = "03343451ff899767262ec32146f6d559dd759fdadf42ff0e227c7c48f72594b4" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -2102,7 +2090,7 @@ dependencies = [ "pest_derive", "regex", "serde_json", - "thiserror 2.0.12", + "thiserror 2.0.15", ] [[package]] @@ -2337,7 +2325,7 @@ checksum = "88a9689d8d44bf9964484516275f5cd4c9b59457a6940c1d5d0ecbb94510a36b" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -2643,9 +2631,9 @@ dependencies = [ [[package]] name = "object" -version = "0.37.2" +version = "0.37.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b3e3d0a7419f081f4a808147e845310313a39f322d7ae1f996b7f001d6cbed04" +checksum = "ff76201f031d8863c38aa7f905eca4f53abbfa15f609db4277d44cd8938f33fe" dependencies = [ "crc32fast", "flate2", @@ -2653,7 +2641,7 @@ dependencies = [ "indexmap", "memchr", "ruzstd 0.8.1", - "wasmparser 0.236.0", + "wasmparser 0.236.1", ] [[package]] @@ -2834,7 +2822,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "1db05f56d34358a8b1066f67cbb203ee3e7ed2ba674a6263a1d5ec6db2204323" dependencies = [ "memchr", - "thiserror 2.0.12", + "thiserror 2.0.15", "ucd-trie", ] @@ -2858,7 +2846,7 @@ dependencies = [ "pest_meta", "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -3007,9 +2995,9 @@ checksum = "dc375e1527247fe1a97d8b7156678dfe7c1af2fc075c9a4db3690ecd2a148068" [[package]] name = "proc-macro2" -version = "1.0.95" +version = "1.0.101" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "02b3e5e68a3a1a02aad3ec490a98007cbc13c37cbe84a3cd7b8e406d76e7f778" +checksum = "89ae43fd86e4158d6db51ad8e2b80f313af9cc74f5c0e03ccb87de09998732de" dependencies = [ "unicode-ident", ] @@ -3147,9 +3135,9 @@ dependencies = [ [[package]] name = "rayon" -version = "1.10.0" +version = "1.11.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b418a60154510ca1a002a752ca9714984e21e4241e804d32555251faf8b78ffa" +checksum = "368f01d005bf8fd9b1206fb6fa653e6c4a81ceb1466406b81792d87c5677a58f" dependencies = [ "either", "rayon-core", @@ -3157,9 +3145,9 @@ dependencies = [ [[package]] name = "rayon-core" -version = "1.12.1" +version = "1.13.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1465873a3dfdaa8ae7cb14b4383657caab0b3e8a0aa9ae8e04b044854c8dfce2" +checksum = "22e18b0f0062d30d4230b2e85ff77fdfe4326feb054b9783a3460d8435c8ab91" dependencies = [ "crossbeam-deque", "crossbeam-utils", @@ -3193,7 +3181,7 @@ checksum = "a4e608c6638b9c18977b00b475ac1f28d14e84b27d8d42f70e0bf1e3dec127ac" dependencies = [ "getrandom 0.2.16", "libredox", - "thiserror 2.0.12", + "thiserror 2.0.15", ] [[package]] @@ -3279,11 +3267,11 @@ dependencies = [ "build_helper", "gimli 0.32.0", "libc", - "object 0.37.2", + "object 0.37.3", "regex", "serde_json", "similar", - "wasmparser 0.236.0", + "wasmparser 0.236.1", ] [[package]] @@ -3367,6 +3355,7 @@ dependencies = [ "rand 0.9.2", "rand_xoshiro", "rustc_data_structures", + "rustc_error_messages", "rustc_hashes", "rustc_index", "rustc_macros", @@ -3458,7 +3447,6 @@ dependencies = [ "rustc_feature", "rustc_fluent_macro", "rustc_macros", - "rustc_parse", "rustc_session", "rustc_span", "rustc_target", @@ -3480,7 +3468,6 @@ dependencies = [ name = "rustc_attr_parsing" version = "0.0.0" dependencies = [ - "itertools", "rustc_abi", "rustc_ast", "rustc_ast_pretty", @@ -3490,6 +3477,7 @@ dependencies = [ "rustc_hir", "rustc_lexer", "rustc_macros", + "rustc_parse", "rustc_session", "rustc_span", "thin-vec", @@ -3570,7 +3558,7 @@ dependencies = [ "itertools", "libc", "measureme", - "object 0.37.2", + "object 0.37.3", "rustc-demangle", "rustc_abi", "rustc_ast", @@ -3608,7 +3596,7 @@ dependencies = [ "cc", "itertools", "libc", - "object 0.37.2", + "object 0.37.3", "pathdiff", "regex", "rustc_abi", @@ -3779,6 +3767,8 @@ dependencies = [ "icu_locid", "icu_provider_adapters", "intl-memoizer", + "rustc_ast", + "rustc_ast_pretty", "rustc_baked_icu_data", "rustc_data_structures", "rustc_macros", @@ -3796,21 +3786,17 @@ dependencies = [ "derive_setters", "rustc_abi", "rustc_ast", - "rustc_ast_pretty", "rustc_data_structures", "rustc_error_codes", "rustc_error_messages", "rustc_fluent_macro", "rustc_hashes", - "rustc_hir", "rustc_index", "rustc_lexer", "rustc_lint_defs", "rustc_macros", "rustc_serialize", "rustc_span", - "rustc_target", - "rustc_type_ir", "serde", "serde_json", "termcolor", @@ -3865,7 +3851,7 @@ dependencies = [ "fluent-syntax", "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", "unic-langid", ] @@ -3898,7 +3884,9 @@ dependencies = [ "rustc_ast", "rustc_ast_pretty", "rustc_data_structures", + "rustc_error_messages", "rustc_hashes", + "rustc_hir_id", "rustc_index", "rustc_macros", "rustc_serialize", @@ -3937,6 +3925,17 @@ dependencies = [ ] [[package]] +name = "rustc_hir_id" +version = "0.0.0" +dependencies = [ + "rustc_data_structures", + "rustc_index", + "rustc_macros", + "rustc_serialize", + "rustc_span", +] + +[[package]] name = "rustc_hir_pretty" version = "0.0.0" dependencies = [ @@ -4012,7 +4011,7 @@ version = "0.0.0" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -4123,11 +4122,10 @@ dependencies = [ name = "rustc_lint_defs" version = "0.0.0" dependencies = [ - "rustc_abi", "rustc_ast", "rustc_data_structures", "rustc_error_messages", - "rustc_hir", + "rustc_hir_id", "rustc_macros", "rustc_serialize", "rustc_span", @@ -4158,7 +4156,7 @@ version = "0.0.0" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", "synstructure", ] @@ -4268,7 +4266,6 @@ dependencies = [ "rustc_errors", "rustc_fluent_macro", "rustc_graphviz", - "rustc_hir", "rustc_index", "rustc_macros", "rustc_middle", @@ -4345,7 +4342,6 @@ dependencies = [ "rustc-literal-escaper", "rustc_ast", "rustc_ast_pretty", - "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", "rustc_feature", @@ -4644,9 +4640,10 @@ name = "rustc_target" version = "0.0.0" dependencies = [ "bitflags", - "object 0.37.2", + "object 0.37.3", "rustc_abi", "rustc_data_structures", + "rustc_error_messages", "rustc_fs_util", "rustc_macros", "rustc_serialize", @@ -4710,7 +4707,6 @@ name = "rustc_traits" version = "0.0.0" dependencies = [ "rustc_data_structures", - "rustc_hir", "rustc_infer", "rustc_middle", "rustc_span", @@ -4765,6 +4761,7 @@ dependencies = [ "rustc-hash 2.1.1", "rustc_ast_ir", "rustc_data_structures", + "rustc_error_messages", "rustc_index", "rustc_macros", "rustc_serialize", @@ -4781,7 +4778,7 @@ version = "0.0.0" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", "synstructure", ] @@ -4873,7 +4870,7 @@ dependencies = [ "proc-macro2", "quote", "serde", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -5010,9 +5007,9 @@ dependencies = [ [[package]] name = "serde-untagged" -version = "0.1.7" +version = "0.1.8" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "299d9c19d7d466db4ab10addd5703e4c615dec2a5a16dbbafe191045e87ee66e" +checksum = "34836a629bcbc6f1afdf0907a744870039b1e14c0561cb26094fa683b158eff3" dependencies = [ "erased-serde", "serde", @@ -5037,7 +5034,7 @@ checksum = "5b0276cf7f2c73365f7157c8123c21cd9a50fbbd844757af28ca1f5925fc2a00" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -5128,12 +5125,12 @@ checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03" [[package]] name = "socket2" -version = "0.5.10" +version = "0.6.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "e22376abed350d73dd1cd119b57ffccad95b4e585a7cda43e286245ce23c0678" +checksum = "233504af464074f9d066d7b5416c5f9b894a5862a6506e306f7b816cdd6f1807" dependencies = [ "libc", - "windows-sys 0.52.0", + "windows-sys 0.59.0", ] [[package]] @@ -5273,9 +5270,9 @@ dependencies = [ [[package]] name = "syn" -version = "2.0.104" +version = "2.0.106" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "17b6f705963418cdb9927482fa304bc562ece2fdd4f616084c50b7023b435a40" +checksum = "ede7c438028d4436d71104916910f5bb611972c5cfd7f89b8300a8186e6fada6" dependencies = [ "proc-macro2", "quote", @@ -5290,7 +5287,7 @@ checksum = "728a70f3dbaf5bab7f0c4b1ac8d7ae5ea60a4b5549c8a5914361c99147a709d2" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -5408,11 +5405,11 @@ dependencies = [ [[package]] name = "thiserror" -version = "2.0.12" +version = "2.0.15" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "567b8a2dae586314f7be2a752ec7474332959c6460e02bde30d702a66d488708" +checksum = "80d76d3f064b981389ecb4b6b7f45a0bf9fdac1d5b9204c7bd6714fecc302850" dependencies = [ - "thiserror-impl 2.0.12", + "thiserror-impl 2.0.15", ] [[package]] @@ -5423,18 +5420,18 @@ checksum = "4fee6c4efc90059e10f81e6d42c60a18f76588c3d74cb83a0b242a2b6c7504c1" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] name = "thiserror-impl" -version = "2.0.12" +version = "2.0.15" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "7f7cf42b4507d8ea322120659672cf1b9dbb93f8f2d4ecfd6e51350ff5b17a1d" +checksum = "44d29feb33e986b6ea906bd9c3559a856983f92371b3eaa5e83782a351623de0" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -5537,15 +5534,6 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20" [[package]] name = "toml" -version = "0.5.11" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "f4f7f0dd8d50a853a531c426359045b1998f04219d88799810762cd4ad314234" -dependencies = [ - "serde", -] - -[[package]] -name = "toml" version = "0.7.8" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "dd79e69d3b627db300ff956027cc6c3798cef26d22526befdfcd12feeb6d2257" @@ -5631,7 +5619,7 @@ checksum = "81383ab64e72a7a8b8e13130c49e3dab29def6d0c7d76a03087b3cf71c5c6903" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -5814,7 +5802,7 @@ checksum = "a1249a628de3ad34b821ecb1001355bca3940bcb2f88558f1a8bd82e977f75b5" dependencies = [ "proc-macro-hack", "quote", - "syn 2.0.104", + "syn 2.0.106", "unic-langid-impl", ] @@ -5946,9 +5934,9 @@ checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821" [[package]] name = "uuid" -version = "1.17.0" +version = "1.18.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "3cf4199d1e5d15ddd86a694e4d0dffa9c323ce759fea589f00fef9d81cc1931d" +checksum = "f33196643e165781c20a5ead5582283a7dacbb87855d867fbc2df3f81eddc1be" dependencies = [ "getrandom 0.3.3", "js-sys", @@ -6026,7 +6014,7 @@ dependencies = [ "log", "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", "wasm-bindgen-shared", ] @@ -6048,7 +6036,7 @@ checksum = "8ae87ea40c9f689fc23f209965b6fb8a99ad69aeeb0231408be24920604395de" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", "wasm-bindgen-backend", "wasm-bindgen-shared", ] @@ -6111,12 +6099,12 @@ dependencies = [ [[package]] name = "wasm-encoder" -version = "0.236.0" +version = "0.236.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "3108979166ab0d3c7262d2e16a2190ffe784b2a5beb963edef154b5e8e07680b" +checksum = "724fccfd4f3c24b7e589d333fc0429c68042897a7e8a5f8694f31792471841e7" dependencies = [ "leb128fmt", - "wasmparser 0.236.0", + "wasmparser 0.236.1", ] [[package]] @@ -6156,9 +6144,9 @@ dependencies = [ [[package]] name = "wasmparser" -version = "0.236.0" +version = "0.236.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "16d1eee846a705f6f3cb9d7b9f79b54583810f1fb57a1e3aea76d1742db2e3d2" +checksum = "a9b1e81f3eb254cf7404a82cee6926a4a3ccc5aad80cc3d43608a070c67aa1d7" dependencies = [ "bitflags", "indexmap", @@ -6167,22 +6155,22 @@ dependencies = [ [[package]] name = "wast" -version = "236.0.0" +version = "236.0.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "11d6b6faeab519ba6fbf9b26add41617ca6f5553f99ebc33d876e591d2f4f3c6" +checksum = "d3bec4b4db9c6808d394632fd4b0cd4654c32c540bd3237f55ee6a40fff6e51f" dependencies = [ "bumpalo", "leb128fmt", "memchr", "unicode-width 0.2.1", - "wasm-encoder 0.236.0", + "wasm-encoder 0.236.1", ] [[package]] name = "wat" -version = "1.236.0" +version = "1.236.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "cc31704322400f461f7f31a5f9190d5488aaeafb63ae69ad2b5888d2704dcb08" +checksum = "64475e2f77d6071ce90624098fc236285ddafa8c3ea1fb386f2c4154b6c2bbdb" dependencies = [ "wast", ] @@ -6316,7 +6304,7 @@ checksum = "2bbd5b46c938e506ecbce286b6628a02171d56153ba733b6c741fc627ec9579b" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -6327,7 +6315,7 @@ checksum = "a47fddd13af08290e67f4acabf4b459f647552718f683a7b415d290ac744a836" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -6338,7 +6326,7 @@ checksum = "053c4c462dc91d3b1504c6fe5a726dd15e216ba718e84a0e46a88fbe5ded3515" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -6349,7 +6337,7 @@ checksum = "bd9211b69f8dcdfa817bfd14bf1c97c9188afa36f4750130fcdf3f400eca9fa8" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -6782,7 +6770,7 @@ checksum = "2380878cad4ac9aac1e2435f3eb4020e8374b5f13c296cb75b4620ff8e229154" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", "synstructure", ] @@ -6794,7 +6782,7 @@ checksum = "38da3c9736e16c5d3c8c597a9aaa5d1fa565d0532ae05e27c24aa62fb32c0ab6" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", "synstructure", ] @@ -6815,7 +6803,7 @@ checksum = "9ecf5b4cc5364572d7f4c329661bcc82724222973f2cab6f050a4e5c22f75181" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -6835,7 +6823,7 @@ checksum = "d71e5d6e06ab090c67b5e44993ec16b72dcbaabc526db883a360057678b48502" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", "synstructure", ] @@ -6880,7 +6868,7 @@ checksum = "6eafa6dfb17584ea3e2bd6e76e0cc15ad7af12b09abdd1ca55961bed9b1063c6" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] [[package]] @@ -6891,5 +6879,5 @@ checksum = "5b96237efa0c878c64bd89c436f661be4e46b2f3eff1ebb976f7ef2321d2f58f" dependencies = [ "proc-macro2", "quote", - "syn 2.0.104", + "syn 2.0.106", ] diff --git a/RELEASES.md b/RELEASES.md index b6dc0628646..33abe45ce46 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -1778,7 +1778,7 @@ Language - [Undeprecate lint `unstable_features` and make use of it in the compiler.](https://github.com/rust-lang/rust/pull/118639/) - [Make inductive cycles in coherence ambiguous always.](https://github.com/rust-lang/rust/pull/118649/) - [Get rid of type-driven traversal in const-eval interning](https://github.com/rust-lang/rust/pull/119044/), - only as a [future compatiblity lint](https://github.com/rust-lang/rust/pull/122204) for now. + only as a [future compatibility lint](https://github.com/rust-lang/rust/pull/122204) for now. - [Deny braced macro invocations in let-else.](https://github.com/rust-lang/rust/pull/119062/) <a id="1.77.0-Compiler"></a> diff --git a/bootstrap.example.toml b/bootstrap.example.toml index 4c18d5f8675..16fd9241a17 100644 --- a/bootstrap.example.toml +++ b/bootstrap.example.toml @@ -407,8 +407,11 @@ #build.profiler = false # Use the optimized LLVM C intrinsics for `compiler_builtins`, rather than Rust intrinsics. -# Requires the LLVM submodule to be managed by bootstrap (i.e. not external) so that `compiler-rt` -# sources are available. +# Choosing true requires the LLVM submodule to be managed by bootstrap (i.e. not external) +# so that `compiler-rt` sources are available. +# +# Setting this to a path removes the requirement for a C toolchain, but requires setting the +# path to an existing library containing the builtins library from LLVM's compiler-rt. # # Setting this to `false` generates slower code, but removes the requirement for a C toolchain in # order to run `x check`. @@ -1041,13 +1044,15 @@ #runner = <none> (string) # Use the optimized LLVM C intrinsics for `compiler_builtins`, rather than Rust intrinsics -# on this target. -# Requires the LLVM submodule to be managed by bootstrap (i.e. not external) so that `compiler-rt` -# sources are available. +# on this target. Choosing true requires the LLVM submodule to be managed by bootstrap +# (i.e. not external) so that `compiler-rt` sources are available. +# +# Setting this to a path removes the requirement for a C toolchain, but requires setting the +# path to an existing library containing the builtins library from LLVM's compiler-rt. # # Setting this to `false` generates slower code, but removes the requirement for a C toolchain in # order to run `x check`. -#optimized-compiler-builtins = build.optimized-compiler-builtins (bool) +#optimized-compiler-builtins = build.optimized-compiler-builtins (bool or path) # Link the compiler and LLVM against `jemalloc` instead of the default libc allocator. # This overrides the global `rust.jemalloc` option. See that option for more info. diff --git a/compiler/rustc_abi/Cargo.toml b/compiler/rustc_abi/Cargo.toml index 5f9afc46a1a..83d96d8d04d 100644 --- a/compiler/rustc_abi/Cargo.toml +++ b/compiler/rustc_abi/Cargo.toml @@ -9,6 +9,7 @@ bitflags = "2.4.1" rand = { version = "0.9.0", default-features = false, optional = true } rand_xoshiro = { version = "0.7.0", optional = true } rustc_data_structures = { path = "../rustc_data_structures", optional = true } +rustc_error_messages = { path = "../rustc_error_messages", optional = true } rustc_hashes = { path = "../rustc_hashes" } rustc_index = { path = "../rustc_index", default-features = false } rustc_macros = { path = "../rustc_macros", optional = true } @@ -24,6 +25,7 @@ default = ["nightly", "randomize"] # without depending on rustc_data_structures, rustc_macros and rustc_serialize nightly = [ "dep:rustc_data_structures", + "dep:rustc_error_messages", "dep:rustc_macros", "dep:rustc_serialize", "dep:rustc_span", diff --git a/compiler/rustc_abi/src/extern_abi.rs b/compiler/rustc_abi/src/extern_abi.rs index 29a3678abf3..41d744e1946 100644 --- a/compiler/rustc_abi/src/extern_abi.rs +++ b/compiler/rustc_abi/src/extern_abi.rs @@ -223,6 +223,9 @@ impl StableOrd for ExternAbi { const THIS_IMPLEMENTATION_HAS_BEEN_TRIPLE_CHECKED: () = (); } +#[cfg(feature = "nightly")] +rustc_error_messages::into_diag_arg_using_display!(ExternAbi); + impl ExternAbi { /// An ABI "like Rust" /// diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs index 87c9c797ea5..de3e0e0c87f 100644 --- a/compiler/rustc_ast/src/ast.rs +++ b/compiler/rustc_ast/src/ast.rs @@ -3137,7 +3137,7 @@ impl FnRetTy { #[derive(Clone, Copy, PartialEq, Encodable, Decodable, Debug, Walkable)] pub enum Inline { Yes, - No, + No { had_parse_error: Result<(), ErrorGuaranteed> }, } /// Module item kind. @@ -3147,7 +3147,7 @@ pub enum ModKind { /// or with definition outlined to a separate file `mod foo;` and already loaded from it. /// The inner span is from the first token past `{` to the last token until `}`, /// or from the first to the last token in the loaded file. - Loaded(ThinVec<Box<Item>>, Inline, ModSpans, Result<(), ErrorGuaranteed>), + Loaded(ThinVec<Box<Item>>, Inline, ModSpans), /// Module with definition outlined to a separate file `mod foo;` but not yet loaded from it. Unloaded, } diff --git a/compiler/rustc_ast/src/token.rs b/compiler/rustc_ast/src/token.rs index fc816f2cb79..ea98bebd305 100644 --- a/compiler/rustc_ast/src/token.rs +++ b/compiler/rustc_ast/src/token.rs @@ -7,6 +7,7 @@ pub use NtPatKind::*; pub use TokenKind::*; use rustc_macros::{Decodable, Encodable, HashStable_Generic}; use rustc_span::edition::Edition; +use rustc_span::symbol::IdentPrintMode; use rustc_span::{DUMMY_SP, ErrorGuaranteed, Span, kw, sym}; #[allow(clippy::useless_attribute)] // FIXME: following use of `hidden_glob_reexports` incorrectly triggers `useless_attribute` lint. #[allow(hidden_glob_reexports)] @@ -344,15 +345,24 @@ pub enum IdentIsRaw { Yes, } -impl From<bool> for IdentIsRaw { - fn from(b: bool) -> Self { - if b { Self::Yes } else { Self::No } +impl IdentIsRaw { + pub fn to_print_mode_ident(self) -> IdentPrintMode { + match self { + IdentIsRaw::No => IdentPrintMode::Normal, + IdentIsRaw::Yes => IdentPrintMode::RawIdent, + } + } + pub fn to_print_mode_lifetime(self) -> IdentPrintMode { + match self { + IdentIsRaw::No => IdentPrintMode::Normal, + IdentIsRaw::Yes => IdentPrintMode::RawLifetime, + } } } -impl From<IdentIsRaw> for bool { - fn from(is_raw: IdentIsRaw) -> bool { - matches!(is_raw, IdentIsRaw::Yes) +impl From<bool> for IdentIsRaw { + fn from(b: bool) -> Self { + if b { Self::Yes } else { Self::No } } } diff --git a/compiler/rustc_ast/src/tokenstream.rs b/compiler/rustc_ast/src/tokenstream.rs index e55399adfb8..f4f35a4d2ee 100644 --- a/compiler/rustc_ast/src/tokenstream.rs +++ b/compiler/rustc_ast/src/tokenstream.rs @@ -907,6 +907,12 @@ impl TokenTreeCursor { pub fn bump(&mut self) { self.index += 1; } + + // For skipping ahead in rare circumstances. + #[inline] + pub fn bump_to_end(&mut self) { + self.index = self.stream.len(); + } } /// A `TokenStream` cursor that produces `Token`s. It's a bit odd that diff --git a/compiler/rustc_ast_lowering/src/item.rs b/compiler/rustc_ast_lowering/src/item.rs index 72817a0a9a0..bb559bd8921 100644 --- a/compiler/rustc_ast_lowering/src/item.rs +++ b/compiler/rustc_ast_lowering/src/item.rs @@ -251,7 +251,7 @@ impl<'hir> LoweringContext<'_, 'hir> { ItemKind::Mod(_, ident, mod_kind) => { let ident = self.lower_ident(*ident); match mod_kind { - ModKind::Loaded(items, _, spans, _) => { + ModKind::Loaded(items, _, spans) => { hir::ItemKind::Mod(ident, self.lower_mod(items, spans)) } ModKind::Unloaded => panic!("`mod` items should have been loaded by now"), @@ -1596,7 +1596,7 @@ impl<'hir> LoweringContext<'_, 'hir> { let safety = self.lower_safety(h.safety, default_safety); // Treat safe `#[target_feature]` functions as unsafe, but also remember that we did so. - let safety = if find_attr!(attrs, AttributeKind::TargetFeature { .. }) + let safety = if find_attr!(attrs, AttributeKind::TargetFeature { was_forced: false, .. }) && safety.is_safe() && !self.tcx.sess.target.is_like_wasm { diff --git a/compiler/rustc_ast_passes/Cargo.toml b/compiler/rustc_ast_passes/Cargo.toml index 1940628b44a..3e04f8b11ec 100644 --- a/compiler/rustc_ast_passes/Cargo.toml +++ b/compiler/rustc_ast_passes/Cargo.toml @@ -15,7 +15,6 @@ rustc_errors = { path = "../rustc_errors" } rustc_feature = { path = "../rustc_feature" } rustc_fluent_macro = { path = "../rustc_fluent_macro" } rustc_macros = { path = "../rustc_macros" } -rustc_parse = { path = "../rustc_parse" } rustc_session = { path = "../rustc_session" } rustc_span = { path = "../rustc_span" } rustc_target = { path = "../rustc_target" } diff --git a/compiler/rustc_ast_passes/messages.ftl b/compiler/rustc_ast_passes/messages.ftl index 73cbcdd30ce..a95f1443968 100644 --- a/compiler/rustc_ast_passes/messages.ftl +++ b/compiler/rustc_ast_passes/messages.ftl @@ -20,6 +20,10 @@ ast_passes_abi_must_not_have_return_type= .note = functions with the {$abi} ABI cannot have a return type .help = remove the return type +ast_passes_abi_x86_interrupt = + invalid signature for `extern "x86-interrupt"` function + .note = functions with the "x86-interrupt" ABI must be have either 1 or 2 parameters (but found {$param_count}) + ast_passes_assoc_const_without_body = associated constant in `impl` without body .suggestion = provide a definition for the constant @@ -109,6 +113,10 @@ ast_passes_extern_without_abi = `extern` declarations without an explicit ABI ar .suggestion = specify an ABI .help = prior to Rust 2024, a default ABI was inferred +ast_passes_extern_without_abi_sugg = `extern` declarations without an explicit ABI are deprecated + .label = ABI should be specified here + .suggestion = explicitly specify the {$default_abi} ABI + ast_passes_feature_on_non_nightly = `#![feature]` may not be used on the {$channel} release channel .suggestion = remove the attribute .stable_since = the feature `{$name}` has been stable since `{$since}` and no longer requires an attribute to enable diff --git a/compiler/rustc_ast_passes/src/ast_validation.rs b/compiler/rustc_ast_passes/src/ast_validation.rs index 0c72f319007..6133cc3548b 100644 --- a/compiler/rustc_ast_passes/src/ast_validation.rs +++ b/compiler/rustc_ast_passes/src/ast_validation.rs @@ -25,16 +25,16 @@ use rustc_abi::{CanonAbi, ExternAbi, InterruptKind}; use rustc_ast::visit::{AssocCtxt, BoundKind, FnCtxt, FnKind, Visitor, walk_list}; use rustc_ast::*; use rustc_ast_pretty::pprust::{self, State}; +use rustc_attr_parsing::validate_attr; use rustc_data_structures::fx::FxIndexMap; -use rustc_errors::DiagCtxtHandle; +use rustc_errors::{DiagCtxtHandle, LintBuffer}; use rustc_feature::Features; -use rustc_parse::validate_attr; use rustc_session::Session; +use rustc_session::lint::BuiltinLintDiag; use rustc_session::lint::builtin::{ DEPRECATED_WHERE_CLAUSE_LOCATION, MISSING_ABI, MISSING_UNSAFE_ON_EXTERN, PATTERNS_IN_FNS_WITHOUT_BODY, }; -use rustc_session::lint::{BuiltinLintDiag, LintBuffer}; use rustc_span::{Ident, Span, kw, sym}; use rustc_target::spec::{AbiMap, AbiMapping}; use thin_vec::thin_vec; @@ -405,6 +405,17 @@ impl<'a> AstValidator<'a> { if let InterruptKind::X86 = interrupt_kind { // "x86-interrupt" is special because it does have arguments. // FIXME(workingjubilee): properly lint on acceptable input types. + let inputs = &sig.decl.inputs; + let param_count = inputs.len(); + if !matches!(param_count, 1 | 2) { + let mut spans: Vec<Span> = + inputs.iter().map(|arg| arg.span).collect(); + if spans.is_empty() { + spans = vec![sig.span]; + } + self.dcx().emit_err(errors::AbiX86Interrupt { spans, param_count }); + } + if let FnRetTy::Ty(ref ret_ty) = sig.decl.output && match &ret_ty.kind { TyKind::Never => false, @@ -865,7 +876,7 @@ impl<'a> AstValidator<'a> { MISSING_ABI, id, span, - BuiltinLintDiag::MissingAbi(span, ExternAbi::FALLBACK), + errors::MissingAbiSugg { span, default_abi: ExternAbi::FALLBACK }, ) } } @@ -1169,7 +1180,7 @@ impl<'a> Visitor<'a> for AstValidator<'a> { self.dcx().emit_err(errors::UnsafeItem { span, kind: "module" }); } // Ensure that `path` attributes on modules are recorded as used (cf. issue #35584). - if !matches!(mod_kind, ModKind::Loaded(_, Inline::Yes, _, _)) + if !matches!(mod_kind, ModKind::Loaded(_, Inline::Yes, _)) && !attr::contains_name(&item.attrs, sym::path) { self.check_mod_file_item_asciionly(*ident); diff --git a/compiler/rustc_ast_passes/src/errors.rs b/compiler/rustc_ast_passes/src/errors.rs index 5ecc0d21411..ae8f056cb4e 100644 --- a/compiler/rustc_ast_passes/src/errors.rs +++ b/compiler/rustc_ast_passes/src/errors.rs @@ -4,7 +4,7 @@ use rustc_abi::ExternAbi; use rustc_ast::ParamKindOrd; use rustc_errors::codes::*; use rustc_errors::{Applicability, Diag, EmissionGuarantee, Subdiagnostic}; -use rustc_macros::{Diagnostic, Subdiagnostic}; +use rustc_macros::{Diagnostic, LintDiagnostic, Subdiagnostic}; use rustc_span::{Ident, Span, Symbol}; use crate::fluent_generated as fluent; @@ -815,6 +815,14 @@ pub(crate) struct MissingAbi { pub span: Span, } +#[derive(LintDiagnostic)] +#[diag(ast_passes_extern_without_abi_sugg)] +pub(crate) struct MissingAbiSugg { + #[suggestion(code = "extern {default_abi}", applicability = "machine-applicable")] + pub span: Span, + pub default_abi: ExternAbi, +} + #[derive(Diagnostic)] #[diag(ast_passes_abi_custom_safe_foreign_function)] pub(crate) struct AbiCustomSafeForeignFunction { @@ -891,3 +899,12 @@ pub(crate) struct AbiMustNotHaveReturnType { pub span: Span, pub abi: ExternAbi, } + +#[derive(Diagnostic)] +#[diag(ast_passes_abi_x86_interrupt)] +#[note] +pub(crate) struct AbiX86Interrupt { + #[primary_span] + pub spans: Vec<Span>, + pub param_count: usize, +} diff --git a/compiler/rustc_ast_passes/src/feature_gate.rs b/compiler/rustc_ast_passes/src/feature_gate.rs index c9344a76a7b..e763c9d69fc 100644 --- a/compiler/rustc_ast_passes/src/feature_gate.rs +++ b/compiler/rustc_ast_passes/src/feature_gate.rs @@ -524,6 +524,7 @@ pub fn check_crate(krate: &ast::Crate, sess: &Session, features: &Features) { gate_all!(where_clause_attrs, "attributes in `where` clause are unstable"); gate_all!(super_let, "`super let` is experimental"); gate_all!(frontmatter, "frontmatters are experimental"); + gate_all!(coroutines, "coroutine syntax is experimental"); if !visitor.features.never_patterns() { if let Some(spans) = spans.get(&sym::never_patterns) { diff --git a/compiler/rustc_ast_pretty/src/pprust/state.rs b/compiler/rustc_ast_pretty/src/pprust/state.rs index 85f76036df7..a056ce3e29d 100644 --- a/compiler/rustc_ast_pretty/src/pprust/state.rs +++ b/compiler/rustc_ast_pretty/src/pprust/state.rs @@ -10,7 +10,7 @@ use std::borrow::Cow; use std::sync::Arc; use rustc_ast::attr::AttrIdGenerator; -use rustc_ast::token::{self, CommentKind, Delimiter, IdentIsRaw, Token, TokenKind}; +use rustc_ast::token::{self, CommentKind, Delimiter, Token, TokenKind}; use rustc_ast::tokenstream::{Spacing, TokenStream, TokenTree}; use rustc_ast::util::classify; use rustc_ast::util::comments::{Comment, CommentStyle}; @@ -441,7 +441,7 @@ pub trait PrintState<'a>: std::ops::Deref<Target = pp::Printer> + std::ops::Dere fn print_generic_args(&mut self, args: &ast::GenericArgs, colons_before_params: bool); fn print_ident(&mut self, ident: Ident) { - self.word(IdentPrinter::for_ast_ident(ident, ident.is_raw_guess()).to_string()); + self.word(IdentPrinter::for_ast_ident(ident, ident.guess_print_mode()).to_string()); self.ann_post(ident) } @@ -1015,17 +1015,16 @@ pub trait PrintState<'a>: std::ops::Deref<Target = pp::Printer> + std::ops::Dere /* Name components */ token::Ident(name, is_raw) => { - IdentPrinter::new(name, is_raw.into(), convert_dollar_crate).to_string().into() + IdentPrinter::new(name, is_raw.to_print_mode_ident(), convert_dollar_crate) + .to_string() + .into() } token::NtIdent(ident, is_raw) => { - IdentPrinter::for_ast_ident(ident, is_raw.into()).to_string().into() + IdentPrinter::for_ast_ident(ident, is_raw.to_print_mode_ident()).to_string().into() } - token::Lifetime(name, IdentIsRaw::No) - | token::NtLifetime(Ident { name, .. }, IdentIsRaw::No) => name.to_string().into(), - token::Lifetime(name, IdentIsRaw::Yes) - | token::NtLifetime(Ident { name, .. }, IdentIsRaw::Yes) => { - format!("'r#{}", &name.as_str()[1..]).into() + token::Lifetime(name, is_raw) | token::NtLifetime(Ident { name, .. }, is_raw) => { + IdentPrinter::new(name, is_raw.to_print_mode_lifetime(), None).to_string().into() } /* Other */ diff --git a/compiler/rustc_attr_parsing/Cargo.toml b/compiler/rustc_attr_parsing/Cargo.toml index bac89373b67..fd8f7ffb2ed 100644 --- a/compiler/rustc_attr_parsing/Cargo.toml +++ b/compiler/rustc_attr_parsing/Cargo.toml @@ -5,7 +5,6 @@ edition = "2024" [dependencies] # tidy-alphabetical-start -itertools = "0.12" rustc_abi = { path = "../rustc_abi" } rustc_ast = { path = "../rustc_ast" } rustc_ast_pretty = { path = "../rustc_ast_pretty" } @@ -15,6 +14,7 @@ rustc_fluent_macro = { path = "../rustc_fluent_macro" } rustc_hir = { path = "../rustc_hir" } rustc_lexer = { path = "../rustc_lexer" } rustc_macros = { path = "../rustc_macros" } +rustc_parse = { path = "../rustc_parse" } rustc_session = { path = "../rustc_session" } rustc_span = { path = "../rustc_span" } thin-vec = "0.2.12" diff --git a/compiler/rustc_attr_parsing/messages.ftl b/compiler/rustc_attr_parsing/messages.ftl index 4fb66a81652..40e9d597530 100644 --- a/compiler/rustc_attr_parsing/messages.ftl +++ b/compiler/rustc_attr_parsing/messages.ftl @@ -12,9 +12,11 @@ attr_parsing_empty_attribute = attr_parsing_invalid_target = `#[{$name}]` attribute cannot be used on {$target} .help = `#[{$name}]` can {$only}be applied to {$applied} + .suggestion = remove the attribute attr_parsing_invalid_target_lint = `#[{$name}]` attribute cannot be used on {$target} .warn = {-attr_parsing_previously_accepted} .help = `#[{$name}]` can {$only}be applied to {$applied} + .suggestion = remove the attribute attr_parsing_empty_confusables = expected at least one confusable name @@ -168,3 +170,22 @@ attr_parsing_unused_multiple = -attr_parsing_previously_accepted = this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + +attr_parsing_meta_bad_delim = wrong meta list delimiters +attr_parsing_meta_bad_delim_suggestion = the delimiters should be `(` and `)` + +attr_parsing_unsafe_attr_outside_unsafe = unsafe attribute used without unsafe + .label = usage of unsafe attribute +attr_parsing_unsafe_attr_outside_unsafe_suggestion = wrap the attribute in `unsafe(...)` + +attr_parsing_invalid_attr_unsafe = `{$name}` is not an unsafe attribute + .label = this is not an unsafe attribute + .suggestion = remove the `unsafe(...)` + .note = extraneous unsafe is not allowed in attributes + +attr_parsing_invalid_meta_item = expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found {$descr} + .remove_neg_sugg = negative numbers are not literals, try removing the `-` sign + .quote_ident_sugg = surround the identifier with quotation marks to make it into a string literal + +attr_parsing_suffixed_literal_in_attribute = suffixed literals are not allowed in attributes + .help = instead of using a suffixed literal (`1u8`, `1.0f32`, etc.), use an unsuffixed version (`1`, `1.0`, etc.) diff --git a/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs b/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs index 4d995027814..088fa73d742 100644 --- a/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs +++ b/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs @@ -1,14 +1,6 @@ use std::iter; -use rustc_feature::{AttributeTemplate, template}; -use rustc_hir::attrs::AttributeKind; -use rustc_hir::{MethodKind, Target}; -use rustc_span::{Span, Symbol, sym}; - -use super::{CombineAttributeParser, ConvertFn}; -use crate::context::MaybeWarn::{Allow, Warn}; -use crate::context::{AcceptContext, AllowedTargets, Stage}; -use crate::parser::ArgParser; +use super::prelude::*; use crate::session_diagnostics; pub(crate) struct AllowInternalUnstableParser; diff --git a/compiler/rustc_attr_parsing/src/attributes/body.rs b/compiler/rustc_attr_parsing/src/attributes/body.rs index 88540384621..a1492d76194 100644 --- a/compiler/rustc_attr_parsing/src/attributes/body.rs +++ b/compiler/rustc_attr_parsing/src/attributes/body.rs @@ -1,12 +1,6 @@ //! Attributes that can be found in function body. -use rustc_hir::Target; -use rustc_hir::attrs::AttributeKind; -use rustc_span::{Symbol, sym}; - -use super::{NoArgsAttributeParser, OnDuplicate}; -use crate::context::MaybeWarn::Allow; -use crate::context::{AllowedTargets, Stage}; +use super::prelude::*; pub(crate) struct CoroutineParser; diff --git a/compiler/rustc_attr_parsing/src/attributes/codegen_attrs.rs b/compiler/rustc_attr_parsing/src/attributes/codegen_attrs.rs index 6ea073896c2..ffdacff7152 100644 --- a/compiler/rustc_attr_parsing/src/attributes/codegen_attrs.rs +++ b/compiler/rustc_attr_parsing/src/attributes/codegen_attrs.rs @@ -1,16 +1,7 @@ -use rustc_feature::{AttributeTemplate, template}; -use rustc_hir::attrs::{AttributeKind, CoverageAttrKind, OptimizeAttr, UsedBy}; -use rustc_hir::{MethodKind, Target}; +use rustc_hir::attrs::{CoverageAttrKind, OptimizeAttr, SanitizerSet, UsedBy}; use rustc_session::parse::feature_err; -use rustc_span::{Span, Symbol, sym}; - -use super::{ - AcceptMapping, AttributeOrder, AttributeParser, CombineAttributeParser, ConvertFn, - NoArgsAttributeParser, OnDuplicate, SingleAttributeParser, -}; -use crate::context::MaybeWarn::{Allow, Warn}; -use crate::context::{AcceptContext, AllowedTargets, FinalizeContext, Stage}; -use crate::parser::ArgParser; + +use super::prelude::*; use crate::session_diagnostics::{NakedFunctionIncompatibleAttribute, NullOnExport}; pub(crate) struct OptimizeParser; @@ -44,7 +35,7 @@ impl<S: Stage> SingleAttributeParser<S> for OptimizeParser { Some(sym::speed) => OptimizeAttr::Speed, Some(sym::none) => OptimizeAttr::DoNotOptimize, _ => { - cx.expected_specific_argument(single.span(), vec!["size", "speed", "none"]); + cx.expected_specific_argument(single.span(), &[sym::size, sym::speed, sym::none]); OptimizeAttr::Default } }; @@ -91,7 +82,7 @@ impl<S: Stage> SingleAttributeParser<S> for CoverageParser { fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> { let Some(args) = args.list() else { - cx.expected_specific_argument_and_list(cx.attr_span, vec!["on", "off"]); + cx.expected_specific_argument_and_list(cx.attr_span, &[sym::on, sym::off]); return None; }; @@ -100,7 +91,8 @@ impl<S: Stage> SingleAttributeParser<S> for CoverageParser { return None; }; - let fail_incorrect_argument = |span| cx.expected_specific_argument(span, vec!["on", "off"]); + let fail_incorrect_argument = + |span| cx.expected_specific_argument(span, &[sym::on, sym::off]); let Some(arg) = arg.meta_item() else { fail_incorrect_argument(args.span); @@ -135,6 +127,7 @@ impl<S: Stage> SingleAttributeParser<S> for ExportNameParser { Warn(Target::Field), Warn(Target::Arm), Warn(Target::MacroDef), + Warn(Target::MacroCall), ]); const TEMPLATE: AttributeTemplate = template!(NameValueStr: "name"); @@ -182,6 +175,7 @@ impl<S: Stage> AttributeParser<S> for NakedParser { Allow(Target::Method(MethodKind::Inherent)), Allow(Target::Method(MethodKind::Trait { body: true })), Allow(Target::Method(MethodKind::TraitImpl)), + Warn(Target::MacroCall), ]); fn finalize(self, cx: &FinalizeContext<'_, '_, S>) -> Option<AttributeKind> { @@ -286,6 +280,7 @@ impl<S: Stage> NoArgsAttributeParser<S> for TrackCallerParser { Warn(Target::MacroDef), Warn(Target::Arm), Warn(Target::Field), + Warn(Target::MacroCall), ]); const CREATE: fn(Span) -> AttributeKind = AttributeKind::TrackCaller; } @@ -352,7 +347,7 @@ impl<S: Stage> AttributeParser<S> for UsedParser { UsedBy::Linker } _ => { - cx.expected_specific_argument(l.span(), vec!["compiler", "linker"]); + cx.expected_specific_argument(l.span(), &[sym::compiler, sym::linker]); return; } } @@ -373,7 +368,8 @@ impl<S: Stage> AttributeParser<S> for UsedParser { } }, )]; - const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[Allow(Target::Static)]); + const ALLOWED_TARGETS: AllowedTargets = + AllowedTargets::AllowList(&[Allow(Target::Static), Warn(Target::MacroCall)]); fn finalize(self, _cx: &FinalizeContext<'_, '_, S>) -> Option<AttributeKind> { // Ratcheting behaviour, if both `linker` and `compiler` are specified, use `linker` @@ -385,57 +381,68 @@ impl<S: Stage> AttributeParser<S> for UsedParser { } } +fn parse_tf_attribute<'c, S: Stage>( + cx: &'c mut AcceptContext<'_, '_, S>, + args: &'c ArgParser<'_>, +) -> impl IntoIterator<Item = (Symbol, Span)> + 'c { + let mut features = Vec::new(); + let ArgParser::List(list) = args else { + cx.expected_list(cx.attr_span); + return features; + }; + if list.is_empty() { + cx.warn_empty_attribute(cx.attr_span); + return features; + } + for item in list.mixed() { + let Some(name_value) = item.meta_item() else { + cx.expected_name_value(item.span(), Some(sym::enable)); + return features; + }; + + // Validate name + let Some(name) = name_value.path().word_sym() else { + cx.expected_name_value(name_value.path().span(), Some(sym::enable)); + return features; + }; + if name != sym::enable { + cx.expected_name_value(name_value.path().span(), Some(sym::enable)); + return features; + } + + // Use value + let Some(name_value) = name_value.args().name_value() else { + cx.expected_name_value(item.span(), Some(sym::enable)); + return features; + }; + let Some(value_str) = name_value.value_as_str() else { + cx.expected_string_literal(name_value.value_span, Some(name_value.value_as_lit())); + return features; + }; + for feature in value_str.as_str().split(",") { + features.push((Symbol::intern(feature), item.span())); + } + } + features +} + pub(crate) struct TargetFeatureParser; impl<S: Stage> CombineAttributeParser<S> for TargetFeatureParser { type Item = (Symbol, Span); const PATH: &[Symbol] = &[sym::target_feature]; - const CONVERT: ConvertFn<Self::Item> = |items, span| AttributeKind::TargetFeature(items, span); + const CONVERT: ConvertFn<Self::Item> = |items, span| AttributeKind::TargetFeature { + features: items, + attr_span: span, + was_forced: false, + }; const TEMPLATE: AttributeTemplate = template!(List: &["enable = \"feat1, feat2\""]); fn extend<'c>( cx: &'c mut AcceptContext<'_, '_, S>, args: &'c ArgParser<'_>, ) -> impl IntoIterator<Item = Self::Item> + 'c { - let mut features = Vec::new(); - let ArgParser::List(list) = args else { - cx.expected_list(cx.attr_span); - return features; - }; - if list.is_empty() { - cx.warn_empty_attribute(cx.attr_span); - return features; - } - for item in list.mixed() { - let Some(name_value) = item.meta_item() else { - cx.expected_name_value(item.span(), Some(sym::enable)); - return features; - }; - - // Validate name - let Some(name) = name_value.path().word_sym() else { - cx.expected_name_value(name_value.path().span(), Some(sym::enable)); - return features; - }; - if name != sym::enable { - cx.expected_name_value(name_value.path().span(), Some(sym::enable)); - return features; - } - - // Use value - let Some(name_value) = name_value.args().name_value() else { - cx.expected_name_value(item.span(), Some(sym::enable)); - return features; - }; - let Some(value_str) = name_value.value_as_str() else { - cx.expected_string_literal(name_value.value_span, Some(name_value.value_as_lit())); - return features; - }; - for feature in value_str.as_str().split(",") { - features.push((Symbol::intern(feature), item.span())); - } - } - features + parse_tf_attribute(cx, args) } const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[ @@ -447,5 +454,134 @@ impl<S: Stage> CombineAttributeParser<S> for TargetFeatureParser { Warn(Target::Field), Warn(Target::Arm), Warn(Target::MacroDef), + Warn(Target::MacroCall), + ]); +} + +pub(crate) struct ForceTargetFeatureParser; + +impl<S: Stage> CombineAttributeParser<S> for ForceTargetFeatureParser { + type Item = (Symbol, Span); + const PATH: &[Symbol] = &[sym::force_target_feature]; + const CONVERT: ConvertFn<Self::Item> = |items, span| AttributeKind::TargetFeature { + features: items, + attr_span: span, + was_forced: true, + }; + const TEMPLATE: AttributeTemplate = template!(List: &["enable = \"feat1, feat2\""]); + const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[ + Allow(Target::Fn), + Allow(Target::Method(MethodKind::Inherent)), + Allow(Target::Method(MethodKind::Trait { body: true })), + Allow(Target::Method(MethodKind::TraitImpl)), + ]); + + fn extend<'c>( + cx: &'c mut AcceptContext<'_, '_, S>, + args: &'c ArgParser<'_>, + ) -> impl IntoIterator<Item = Self::Item> + 'c { + parse_tf_attribute(cx, args) + } +} + +pub(crate) struct SanitizeParser; + +impl<S: Stage> SingleAttributeParser<S> for SanitizeParser { + const PATH: &[Symbol] = &[sym::sanitize]; + + // FIXME: still checked in check_attrs.rs + const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(ALL_TARGETS); + + const TEMPLATE: AttributeTemplate = template!(List: &[ + r#"address = "on|off""#, + r#"kernel_address = "on|off""#, + r#"cfi = "on|off""#, + r#"hwaddress = "on|off""#, + r#"kcfi = "on|off""#, + r#"memory = "on|off""#, + r#"memtag = "on|off""#, + r#"shadow_call_stack = "on|off""#, + r#"thread = "on|off""# ]); + + const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepOutermost; + const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error; + + fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> { + let Some(list) = args.list() else { + cx.expected_list(cx.attr_span); + return None; + }; + + let mut on_set = SanitizerSet::empty(); + let mut off_set = SanitizerSet::empty(); + + for item in list.mixed() { + let Some(item) = item.meta_item() else { + cx.expected_name_value(item.span(), None); + continue; + }; + + let path = item.path().word_sym(); + let Some(value) = item.args().name_value() else { + cx.expected_name_value(item.span(), path); + continue; + }; + + let mut apply = |s: SanitizerSet| { + let is_on = match value.value_as_str() { + Some(sym::on) => true, + Some(sym::off) => false, + Some(_) => { + cx.expected_specific_argument_strings( + value.value_span, + &[sym::on, sym::off], + ); + return; + } + None => { + cx.expected_string_literal(value.value_span, Some(value.value_as_lit())); + return; + } + }; + + if is_on { + on_set |= s; + } else { + off_set |= s; + } + }; + + match path { + Some(sym::address) | Some(sym::kernel_address) => { + apply(SanitizerSet::ADDRESS | SanitizerSet::KERNELADDRESS) + } + Some(sym::cfi) => apply(SanitizerSet::CFI), + Some(sym::kcfi) => apply(SanitizerSet::KCFI), + Some(sym::memory) => apply(SanitizerSet::MEMORY), + Some(sym::memtag) => apply(SanitizerSet::MEMTAG), + Some(sym::shadow_call_stack) => apply(SanitizerSet::SHADOWCALLSTACK), + Some(sym::thread) => apply(SanitizerSet::THREAD), + Some(sym::hwaddress) => apply(SanitizerSet::HWADDRESS), + _ => { + cx.expected_specific_argument_strings( + item.path().span(), + &[ + sym::address, + sym::cfi, + sym::kcfi, + sym::memory, + sym::memtag, + sym::shadow_call_stack, + sym::thread, + sym::hwaddress, + ], + ); + continue; + } + } + } + + Some(AttributeKind::Sanitize { on_set, off_set, span: cx.attr_span }) + } } diff --git a/compiler/rustc_attr_parsing/src/attributes/confusables.rs b/compiler/rustc_attr_parsing/src/attributes/confusables.rs index 00f949c82c5..97e78dfb136 100644 --- a/compiler/rustc_attr_parsing/src/attributes/confusables.rs +++ b/compiler/rustc_attr_parsing/src/attributes/confusables.rs @@ -1,13 +1,6 @@ -use rustc_feature::template; -use rustc_hir::attrs::AttributeKind; -use rustc_hir::{MethodKind, Target}; -use rustc_span::{Span, Symbol, sym}; -use thin_vec::ThinVec; - -use super::{AcceptMapping, AttributeParser}; -use crate::context::MaybeWarn::Allow; -use crate::context::{AllowedTargets, FinalizeContext, Stage}; -use crate::session_diagnostics; +use super::prelude::*; +use crate::session_diagnostics::EmptyConfusables; + #[derive(Default)] pub(crate) struct ConfusablesParser { confusables: ThinVec<Symbol>, @@ -25,7 +18,7 @@ impl<S: Stage> AttributeParser<S> for ConfusablesParser { }; if list.is_empty() { - cx.emit_err(session_diagnostics::EmptyConfusables { span: cx.attr_span }); + cx.emit_err(EmptyConfusables { span: cx.attr_span }); } for param in list.mixed() { diff --git a/compiler/rustc_attr_parsing/src/attributes/crate_level.rs b/compiler/rustc_attr_parsing/src/attributes/crate_level.rs new file mode 100644 index 00000000000..9175d7479e1 --- /dev/null +++ b/compiler/rustc_attr_parsing/src/attributes/crate_level.rs @@ -0,0 +1,33 @@ +use super::prelude::*; + +pub(crate) struct CrateNameParser; + +impl<S: Stage> SingleAttributeParser<S> for CrateNameParser { + const PATH: &[Symbol] = &[sym::crate_name]; + const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepOutermost; + const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::WarnButFutureError; + const TEMPLATE: AttributeTemplate = template!(NameValueStr: "name"); + + // FIXME: crate name is allowed on all targets and ignored, + // even though it should only be valid on crates of course + const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(ALL_TARGETS); + + fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> { + let ArgParser::NameValue(n) = args else { + cx.expected_name_value(cx.attr_span, None); + return None; + }; + + let Some(name) = n.value_as_str() else { + cx.expected_string_literal(n.value_span, Some(n.value_as_lit())); + return None; + }; + + Some(AttributeKind::CrateName { + name, + name_span: n.value_span, + attr_span: cx.attr_span, + style: cx.attr_style, + }) + } +} diff --git a/compiler/rustc_attr_parsing/src/attributes/deprecation.rs b/compiler/rustc_attr_parsing/src/attributes/deprecation.rs index d3a61f3a653..31c698228ef 100644 --- a/compiler/rustc_attr_parsing/src/attributes/deprecation.rs +++ b/compiler/rustc_attr_parsing/src/attributes/deprecation.rs @@ -1,14 +1,11 @@ -use rustc_feature::{AttributeTemplate, template}; -use rustc_hir::attrs::{AttributeKind, DeprecatedSince, Deprecation}; -use rustc_hir::{MethodKind, Target}; -use rustc_span::{Span, Symbol, sym}; +use rustc_hir::attrs::{DeprecatedSince, Deprecation}; +use super::prelude::*; use super::util::parse_version; -use super::{AttributeOrder, OnDuplicate, SingleAttributeParser}; -use crate::context::MaybeWarn::{Allow, Error}; -use crate::context::{AcceptContext, AllowedTargets, Stage}; -use crate::parser::ArgParser; -use crate::session_diagnostics; +use crate::session_diagnostics::{ + DeprecatedItemSuggestion, InvalidSince, MissingNote, MissingSince, +}; + pub(crate) struct DeprecationParser; fn get<S: Stage>( @@ -102,7 +99,7 @@ impl<S: Stage> SingleAttributeParser<S> for DeprecationParser { } Some(name @ sym::suggestion) => { if !features.deprecated_suggestion() { - cx.emit_err(session_diagnostics::DeprecatedItemSuggestion { + cx.emit_err(DeprecatedItemSuggestion { span: param.span(), is_nightly: cx.sess().is_nightly_build(), details: (), @@ -144,18 +141,18 @@ impl<S: Stage> SingleAttributeParser<S> for DeprecationParser { } else if let Some(version) = parse_version(since) { DeprecatedSince::RustcVersion(version) } else { - cx.emit_err(session_diagnostics::InvalidSince { span: cx.attr_span }); + cx.emit_err(InvalidSince { span: cx.attr_span }); DeprecatedSince::Err } } else if is_rustc { - cx.emit_err(session_diagnostics::MissingSince { span: cx.attr_span }); + cx.emit_err(MissingSince { span: cx.attr_span }); DeprecatedSince::Err } else { DeprecatedSince::Unspecified }; if is_rustc && note.is_none() { - cx.emit_err(session_diagnostics::MissingNote { span: cx.attr_span }); + cx.emit_err(MissingNote { span: cx.attr_span }); return None; } diff --git a/compiler/rustc_attr_parsing/src/attributes/dummy.rs b/compiler/rustc_attr_parsing/src/attributes/dummy.rs index 85842b1b5c5..7293cee842c 100644 --- a/compiler/rustc_attr_parsing/src/attributes/dummy.rs +++ b/compiler/rustc_attr_parsing/src/attributes/dummy.rs @@ -3,8 +3,10 @@ use rustc_hir::attrs::AttributeKind; use rustc_span::{Symbol, sym}; use crate::attributes::{AttributeOrder, OnDuplicate, SingleAttributeParser}; -use crate::context::{ALL_TARGETS, AcceptContext, AllowedTargets, Stage}; +use crate::context::{AcceptContext, Stage}; use crate::parser::ArgParser; +use crate::target_checking::{ALL_TARGETS, AllowedTargets}; + pub(crate) struct DummyParser; impl<S: Stage> SingleAttributeParser<S> for DummyParser { const PATH: &[Symbol] = &[sym::rustc_dummy]; diff --git a/compiler/rustc_attr_parsing/src/attributes/inline.rs b/compiler/rustc_attr_parsing/src/attributes/inline.rs index 33c21bad240..a73430c9d00 100644 --- a/compiler/rustc_attr_parsing/src/attributes/inline.rs +++ b/compiler/rustc_attr_parsing/src/attributes/inline.rs @@ -2,17 +2,10 @@ // note: need to model better how duplicate attr errors work when not using // SingleAttributeParser which is what we have two of here. -use rustc_feature::{AttributeTemplate, template}; use rustc_hir::attrs::{AttributeKind, InlineAttr}; -use rustc_hir::lints::AttributeLintKind; -use rustc_hir::{MethodKind, Target}; -use rustc_span::{Symbol, sym}; -use super::{AcceptContext, AttributeOrder, OnDuplicate}; -use crate::attributes::SingleAttributeParser; -use crate::context::MaybeWarn::{Allow, Warn}; -use crate::context::{AllowedTargets, Stage}; -use crate::parser::ArgParser; +use super::prelude::*; + pub(crate) struct InlineParser; impl<S: Stage> SingleAttributeParser<S> for InlineParser { @@ -32,6 +25,7 @@ impl<S: Stage> SingleAttributeParser<S> for InlineParser { Warn(Target::MacroDef), Warn(Target::Arm), Warn(Target::AssocConst), + Warn(Target::MacroCall), ]); const TEMPLATE: AttributeTemplate = template!( Word, @@ -56,7 +50,7 @@ impl<S: Stage> SingleAttributeParser<S> for InlineParser { Some(AttributeKind::Inline(InlineAttr::Never, cx.attr_span)) } _ => { - cx.expected_specific_argument(l.span(), vec!["always", "never"]); + cx.expected_specific_argument(l.span(), &[sym::always, sym::never]); return None; } } diff --git a/compiler/rustc_attr_parsing/src/attributes/link_attrs.rs b/compiler/rustc_attr_parsing/src/attributes/link_attrs.rs index 552b9dfabc2..5e4551ccd79 100644 --- a/compiler/rustc_attr_parsing/src/attributes/link_attrs.rs +++ b/compiler/rustc_attr_parsing/src/attributes/link_attrs.rs @@ -1,16 +1,10 @@ -use rustc_feature::{AttributeTemplate, template}; use rustc_hir::attrs::AttributeKind::{LinkName, LinkOrdinal, LinkSection}; -use rustc_hir::attrs::{AttributeKind, Linkage}; -use rustc_hir::{MethodKind, Target}; -use rustc_span::{Span, Symbol, sym}; - -use crate::attributes::{ - AttributeOrder, NoArgsAttributeParser, OnDuplicate, SingleAttributeParser, -}; -use crate::context::MaybeWarn::Allow; -use crate::context::{ALL_TARGETS, AcceptContext, AllowedTargets, Stage, parse_single_integer}; -use crate::parser::ArgParser; +use rustc_hir::attrs::Linkage; + +use super::prelude::*; +use super::util::parse_single_integer; use crate::session_diagnostics::{LinkOrdinalOutOfRange, NullOnLinkSection}; + pub(crate) struct LinkNameParser; impl<S: Stage> SingleAttributeParser<S> for LinkNameParser { @@ -116,8 +110,11 @@ impl<S: Stage> SingleAttributeParser<S> for LinkOrdinalParser { const PATH: &[Symbol] = &[sym::link_ordinal]; const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepOutermost; const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error; - const ALLOWED_TARGETS: AllowedTargets = - AllowedTargets::AllowList(&[Allow(Target::ForeignFn), Allow(Target::ForeignStatic)]); + const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[ + Allow(Target::ForeignFn), + Allow(Target::ForeignStatic), + Warn(Target::MacroCall), + ]); const TEMPLATE: AttributeTemplate = template!( List: &["ordinal"], "https://doc.rust-lang.org/reference/items/external-blocks.html#the-link_ordinal-attribute" @@ -212,16 +209,16 @@ impl<S: Stage> SingleAttributeParser<S> for LinkageParser { _ => { cx.expected_specific_argument( name_value.value_span, - vec![ - "available_externally", - "common", - "extern_weak", - "external", - "internal", - "linkonce", - "linkonce_odr", - "weak", - "weak_odr", + &[ + sym::available_externally, + sym::common, + sym::extern_weak, + sym::external, + sym::internal, + sym::linkonce, + sym::linkonce_odr, + sym::weak, + sym::weak_odr, ], ); return None; diff --git a/compiler/rustc_attr_parsing/src/attributes/lint_helpers.rs b/compiler/rustc_attr_parsing/src/attributes/lint_helpers.rs index 2b586d4003c..63b0809d0d8 100644 --- a/compiler/rustc_attr_parsing/src/attributes/lint_helpers.rs +++ b/compiler/rustc_attr_parsing/src/attributes/lint_helpers.rs @@ -1,10 +1,5 @@ -use rustc_hir::attrs::AttributeKind; -use rustc_hir::{MethodKind, Target}; -use rustc_span::{Span, Symbol, sym}; +use super::prelude::*; -use crate::attributes::{NoArgsAttributeParser, OnDuplicate}; -use crate::context::MaybeWarn::{Allow, Error}; -use crate::context::{AllowedTargets, Stage}; pub(crate) struct AsPtrParser; impl<S: Stage> NoArgsAttributeParser<S> for AsPtrParser { const PATH: &[Symbol] = &[sym::rustc_as_ptr]; diff --git a/compiler/rustc_attr_parsing/src/attributes/loop_match.rs b/compiler/rustc_attr_parsing/src/attributes/loop_match.rs index 242e2f2c1bc..528090b8673 100644 --- a/compiler/rustc_attr_parsing/src/attributes/loop_match.rs +++ b/compiler/rustc_attr_parsing/src/attributes/loop_match.rs @@ -1,10 +1,5 @@ -use rustc_hir::Target; -use rustc_hir::attrs::AttributeKind; -use rustc_span::{Span, Symbol, sym}; +use super::prelude::*; -use crate::attributes::{NoArgsAttributeParser, OnDuplicate}; -use crate::context::MaybeWarn::Allow; -use crate::context::{AllowedTargets, Stage}; pub(crate) struct LoopMatchParser; impl<S: Stage> NoArgsAttributeParser<S> for LoopMatchParser { const PATH: &[Symbol] = &[sym::loop_match]; diff --git a/compiler/rustc_attr_parsing/src/attributes/macro_attrs.rs b/compiler/rustc_attr_parsing/src/attributes/macro_attrs.rs index 8928129c201..180130c7be4 100644 --- a/compiler/rustc_attr_parsing/src/attributes/macro_attrs.rs +++ b/compiler/rustc_attr_parsing/src/attributes/macro_attrs.rs @@ -1,15 +1,9 @@ use rustc_errors::DiagArgValue; -use rustc_feature::{AttributeTemplate, template}; -use rustc_hir::Target; -use rustc_hir::attrs::{AttributeKind, MacroUseArgs}; -use rustc_span::{Span, Symbol, sym}; -use thin_vec::ThinVec; +use rustc_hir::attrs::MacroUseArgs; + +use super::prelude::*; +use crate::session_diagnostics::IllFormedAttributeInputLint; -use crate::attributes::{AcceptMapping, AttributeParser, NoArgsAttributeParser, OnDuplicate}; -use crate::context::MaybeWarn::{Allow, Error, Warn}; -use crate::context::{AcceptContext, AllowedTargets, FinalizeContext, Stage}; -use crate::parser::ArgParser; -use crate::session_diagnostics; pub(crate) struct MacroEscapeParser; impl<S: Stage> NoArgsAttributeParser<S> for MacroEscapeParser { const PATH: &[Symbol] = &[sym::macro_escape]; @@ -108,7 +102,7 @@ impl<S: Stage> AttributeParser<S> for MacroUseParser { } ArgParser::NameValue(_) => { let suggestions = MACRO_USE_TEMPLATE.suggestions(cx.attr_style, sym::macro_use); - cx.emit_err(session_diagnostics::IllFormedAttributeInputLint { + cx.emit_err(IllFormedAttributeInputLint { num_suggestions: suggestions.len(), suggestions: DiagArgValue::StrListSepByAnd( suggestions.into_iter().map(|s| format!("`{s}`").into()).collect(), diff --git a/compiler/rustc_attr_parsing/src/attributes/mod.rs b/compiler/rustc_attr_parsing/src/attributes/mod.rs index 3d6e26a24b8..9dad9c893f0 100644 --- a/compiler/rustc_attr_parsing/src/attributes/mod.rs +++ b/compiler/rustc_attr_parsing/src/attributes/mod.rs @@ -7,9 +7,9 @@ //! Specifically, you might not care about managing the state of your [`AttributeParser`] //! state machine yourself. In this case you can choose to implement: //! -//! - [`SingleAttributeParser`]: makes it easy to implement an attribute which should error if it +//! - [`SingleAttributeParser`](crate::attributes::SingleAttributeParser): makes it easy to implement an attribute which should error if it //! appears more than once in a list of attributes -//! - [`CombineAttributeParser`]: makes it easy to implement an attribute which should combine the +//! - [`CombineAttributeParser`](crate::attributes::CombineAttributeParser): makes it easy to implement an attribute which should combine the //! contents of attributes, if an attribute appear multiple times in a list //! //! Attributes should be added to `crate::context::ATTRIBUTE_PARSERS` to be parsed. @@ -21,9 +21,13 @@ use rustc_hir::attrs::AttributeKind; use rustc_span::{Span, Symbol}; use thin_vec::ThinVec; -use crate::context::{AcceptContext, AllowedTargets, FinalizeContext, Stage}; +use crate::context::{AcceptContext, FinalizeContext, Stage}; use crate::parser::ArgParser; use crate::session_diagnostics::UnusedMultiple; +use crate::target_checking::AllowedTargets; + +/// All the parsers require roughly the same imports, so this prelude has most of the often-needed ones. +mod prelude; pub(crate) mod allow_unstable; pub(crate) mod body; @@ -31,6 +35,7 @@ pub(crate) mod cfg; pub(crate) mod cfg_old; pub(crate) mod codegen_attrs; pub(crate) mod confusables; +pub(crate) mod crate_level; pub(crate) mod deprecation; pub(crate) mod dummy; pub(crate) mod inline; diff --git a/compiler/rustc_attr_parsing/src/attributes/must_use.rs b/compiler/rustc_attr_parsing/src/attributes/must_use.rs index b0ee3d1ba6e..e6a5141d783 100644 --- a/compiler/rustc_attr_parsing/src/attributes/must_use.rs +++ b/compiler/rustc_attr_parsing/src/attributes/must_use.rs @@ -1,19 +1,29 @@ use rustc_errors::DiagArgValue; -use rustc_feature::{AttributeTemplate, template}; -use rustc_hir::attrs::AttributeKind; -use rustc_span::{Symbol, sym}; -use crate::attributes::{AttributeOrder, OnDuplicate, SingleAttributeParser}; -use crate::context::{ALL_TARGETS, AcceptContext, AllowedTargets, Stage}; -use crate::parser::ArgParser; -use crate::session_diagnostics; +use super::prelude::*; +use crate::session_diagnostics::IllFormedAttributeInputLint; + pub(crate) struct MustUseParser; impl<S: Stage> SingleAttributeParser<S> for MustUseParser { const PATH: &[Symbol] = &[sym::must_use]; const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepOutermost; const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::WarnButFutureError; - const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(ALL_TARGETS); //FIXME Still checked fully in `check_attr.rs` + const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowListWarnRest(&[ + Allow(Target::Fn), + Allow(Target::Enum), + Allow(Target::Struct), + Allow(Target::Union), + Allow(Target::Method(MethodKind::Trait { body: false })), + Allow(Target::Method(MethodKind::Trait { body: true })), + Allow(Target::Method(MethodKind::Inherent)), + Allow(Target::ForeignFn), + // `impl Trait` in return position can trip + // `unused_must_use` if `Trait` is marked as + // `#[must_use]` + Allow(Target::Trait), + Error(Target::WherePredicate), + ]); const TEMPLATE: AttributeTemplate = template!( Word, NameValueStr: "reason", "https://doc.rust-lang.org/reference/attributes/diagnostics.html#the-must_use-attribute" @@ -37,7 +47,7 @@ impl<S: Stage> SingleAttributeParser<S> for MustUseParser { ArgParser::List(_) => { let suggestions = <Self as SingleAttributeParser<S>>::TEMPLATE .suggestions(cx.attr_style, "must_use"); - cx.emit_err(session_diagnostics::IllFormedAttributeInputLint { + cx.emit_err(IllFormedAttributeInputLint { num_suggestions: suggestions.len(), suggestions: DiagArgValue::StrListSepByAnd( suggestions.into_iter().map(|s| format!("`{s}`").into()).collect(), diff --git a/compiler/rustc_attr_parsing/src/attributes/no_implicit_prelude.rs b/compiler/rustc_attr_parsing/src/attributes/no_implicit_prelude.rs index 589faf38f73..40073ea0f46 100644 --- a/compiler/rustc_attr_parsing/src/attributes/no_implicit_prelude.rs +++ b/compiler/rustc_attr_parsing/src/attributes/no_implicit_prelude.rs @@ -1,10 +1,5 @@ -use rustc_hir::Target; -use rustc_hir::attrs::AttributeKind; -use rustc_span::{Span, sym}; +use super::prelude::*; -use crate::attributes::{NoArgsAttributeParser, OnDuplicate}; -use crate::context::MaybeWarn::Allow; -use crate::context::{AllowedTargets, Stage}; pub(crate) struct NoImplicitPreludeParser; impl<S: Stage> NoArgsAttributeParser<S> for NoImplicitPreludeParser { diff --git a/compiler/rustc_attr_parsing/src/attributes/non_exhaustive.rs b/compiler/rustc_attr_parsing/src/attributes/non_exhaustive.rs index 41e9ca4de41..fc41c073fd2 100644 --- a/compiler/rustc_attr_parsing/src/attributes/non_exhaustive.rs +++ b/compiler/rustc_attr_parsing/src/attributes/non_exhaustive.rs @@ -3,8 +3,10 @@ use rustc_hir::attrs::AttributeKind; use rustc_span::{Span, Symbol, sym}; use crate::attributes::{NoArgsAttributeParser, OnDuplicate}; -use crate::context::MaybeWarn::{Allow, Warn}; -use crate::context::{AllowedTargets, Stage}; +use crate::context::Stage; +use crate::target_checking::AllowedTargets; +use crate::target_checking::Policy::{Allow, Warn}; + pub(crate) struct NonExhaustiveParser; impl<S: Stage> NoArgsAttributeParser<S> for NonExhaustiveParser { @@ -17,6 +19,7 @@ impl<S: Stage> NoArgsAttributeParser<S> for NonExhaustiveParser { Warn(Target::Field), Warn(Target::Arm), Warn(Target::MacroDef), + Warn(Target::MacroCall), ]); const CREATE: fn(Span) -> AttributeKind = AttributeKind::NonExhaustive; } diff --git a/compiler/rustc_attr_parsing/src/attributes/path.rs b/compiler/rustc_attr_parsing/src/attributes/path.rs index f9191d1abed..e4cb806bb42 100644 --- a/compiler/rustc_attr_parsing/src/attributes/path.rs +++ b/compiler/rustc_attr_parsing/src/attributes/path.rs @@ -1,12 +1,5 @@ -use rustc_feature::{AttributeTemplate, template}; -use rustc_hir::Target; -use rustc_hir::attrs::AttributeKind; -use rustc_span::{Symbol, sym}; +use super::prelude::*; -use crate::attributes::{AttributeOrder, OnDuplicate, SingleAttributeParser}; -use crate::context::MaybeWarn::{Allow, Error}; -use crate::context::{AcceptContext, AllowedTargets, Stage}; -use crate::parser::ArgParser; pub(crate) struct PathParser; impl<S: Stage> SingleAttributeParser<S> for PathParser { diff --git a/compiler/rustc_attr_parsing/src/attributes/prelude.rs b/compiler/rustc_attr_parsing/src/attributes/prelude.rs new file mode 100644 index 00000000000..2bcdee55c75 --- /dev/null +++ b/compiler/rustc_attr_parsing/src/attributes/prelude.rs @@ -0,0 +1,20 @@ +// parsing +// templates +pub(super) use rustc_feature::{AttributeTemplate, template}; +// data structures +pub(super) use rustc_hir::attrs::AttributeKind; +pub(super) use rustc_hir::lints::AttributeLintKind; +pub(super) use rustc_hir::{MethodKind, Target}; +pub(super) use rustc_span::{DUMMY_SP, Ident, Span, Symbol, sym}; +pub(super) use thin_vec::ThinVec; + +pub(super) use crate::attributes::{ + AcceptMapping, AttributeOrder, AttributeParser, CombineAttributeParser, ConvertFn, + NoArgsAttributeParser, OnDuplicate, SingleAttributeParser, +}; +// contexts +pub(super) use crate::context::{AcceptContext, FinalizeContext, Stage}; +pub(super) use crate::parser::*; +// target checking +pub(super) use crate::target_checking::Policy::{Allow, Error, Warn}; +pub(super) use crate::target_checking::{ALL_TARGETS, AllowedTargets}; diff --git a/compiler/rustc_attr_parsing/src/attributes/proc_macro_attrs.rs b/compiler/rustc_attr_parsing/src/attributes/proc_macro_attrs.rs index 4624fa36287..b9929d6f1f8 100644 --- a/compiler/rustc_attr_parsing/src/attributes/proc_macro_attrs.rs +++ b/compiler/rustc_attr_parsing/src/attributes/proc_macro_attrs.rs @@ -1,21 +1,13 @@ -use rustc_feature::{AttributeTemplate, template}; -use rustc_hir::Target; -use rustc_hir::attrs::AttributeKind; -use rustc_span::{Span, Symbol, sym}; -use thin_vec::ThinVec; +use super::prelude::*; + +const PROC_MACRO_ALLOWED_TARGETS: AllowedTargets = + AllowedTargets::AllowList(&[Allow(Target::Fn), Warn(Target::Crate), Warn(Target::MacroCall)]); -use crate::attributes::{ - AttributeOrder, NoArgsAttributeParser, OnDuplicate, SingleAttributeParser, -}; -use crate::context::MaybeWarn::{Allow, Warn}; -use crate::context::{AcceptContext, AllowedTargets, Stage}; -use crate::parser::ArgParser; pub(crate) struct ProcMacroParser; impl<S: Stage> NoArgsAttributeParser<S> for ProcMacroParser { const PATH: &[Symbol] = &[sym::proc_macro]; const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error; - const ALLOWED_TARGETS: AllowedTargets = - AllowedTargets::AllowList(&[Allow(Target::Fn), Warn(Target::Crate)]); + const ALLOWED_TARGETS: AllowedTargets = PROC_MACRO_ALLOWED_TARGETS; const CREATE: fn(Span) -> AttributeKind = AttributeKind::ProcMacro; } @@ -23,8 +15,7 @@ pub(crate) struct ProcMacroAttributeParser; impl<S: Stage> NoArgsAttributeParser<S> for ProcMacroAttributeParser { const PATH: &[Symbol] = &[sym::proc_macro_attribute]; const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error; - const ALLOWED_TARGETS: AllowedTargets = - AllowedTargets::AllowList(&[Allow(Target::Fn), Warn(Target::Crate)]); + const ALLOWED_TARGETS: AllowedTargets = PROC_MACRO_ALLOWED_TARGETS; const CREATE: fn(Span) -> AttributeKind = AttributeKind::ProcMacroAttribute; } @@ -33,8 +24,7 @@ impl<S: Stage> SingleAttributeParser<S> for ProcMacroDeriveParser { const PATH: &[Symbol] = &[sym::proc_macro_derive]; const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepOutermost; const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error; - const ALLOWED_TARGETS: AllowedTargets = - AllowedTargets::AllowList(&[Allow(Target::Fn), Warn(Target::Crate)]); + const ALLOWED_TARGETS: AllowedTargets = PROC_MACRO_ALLOWED_TARGETS; const TEMPLATE: AttributeTemplate = template!( List: &["TraitName", "TraitName, attributes(name1, name2, ...)"], "https://doc.rust-lang.org/reference/procedural-macros.html#derive-macros" @@ -110,7 +100,7 @@ fn parse_derive_like<S: Stage>( return None; }; if !attr_list.path().word_is(sym::attributes) { - cx.expected_specific_argument(attrs.span(), vec!["attributes"]); + cx.expected_specific_argument(attrs.span(), &[sym::attributes]); return None; } let Some(attr_list) = attr_list.args().list() else { diff --git a/compiler/rustc_attr_parsing/src/attributes/prototype.rs b/compiler/rustc_attr_parsing/src/attributes/prototype.rs index fb1e47298b4..80fe82bf542 100644 --- a/compiler/rustc_attr_parsing/src/attributes/prototype.rs +++ b/compiler/rustc_attr_parsing/src/attributes/prototype.rs @@ -7,8 +7,10 @@ use rustc_span::{Span, Symbol, sym}; use super::{AttributeOrder, OnDuplicate}; use crate::attributes::SingleAttributeParser; -use crate::context::{AcceptContext, AllowedTargets, MaybeWarn, Stage}; +use crate::context::{AcceptContext, Stage}; use crate::parser::ArgParser; +use crate::target_checking::AllowedTargets; +use crate::target_checking::Policy::Allow; pub(crate) struct CustomMirParser; @@ -19,8 +21,7 @@ impl<S: Stage> SingleAttributeParser<S> for CustomMirParser { const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error; - const ALLOWED_TARGETS: AllowedTargets = - AllowedTargets::AllowList(&[MaybeWarn::Allow(Target::Fn)]); + const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[Allow(Target::Fn)]); const TEMPLATE: AttributeTemplate = template!(List: &[r#"dialect = "...", phase = "...""#]); @@ -108,7 +109,7 @@ fn parse_dialect<S: Stage>( sym::runtime => MirDialect::Runtime, _ => { - cx.expected_specific_argument(span, vec!["analysis", "built", "runtime"]); + cx.expected_specific_argument(span, &[sym::analysis, sym::built, sym::runtime]); *failed = true; return None; } @@ -130,7 +131,7 @@ fn parse_phase<S: Stage>( sym::optimized => MirPhase::Optimized, _ => { - cx.expected_specific_argument(span, vec!["initial", "post-cleanup", "optimized"]); + cx.expected_specific_argument(span, &[sym::initial, sym::post_cleanup, sym::optimized]); *failed = true; return None; } diff --git a/compiler/rustc_attr_parsing/src/attributes/repr.rs b/compiler/rustc_attr_parsing/src/attributes/repr.rs index 7ab58ed9347..23aabd15597 100644 --- a/compiler/rustc_attr_parsing/src/attributes/repr.rs +++ b/compiler/rustc_attr_parsing/src/attributes/repr.rs @@ -1,16 +1,10 @@ use rustc_abi::Align; use rustc_ast::{IntTy, LitIntType, LitKind, UintTy}; -use rustc_feature::{AttributeTemplate, template}; -use rustc_hir::attrs::{AttributeKind, IntType, ReprAttr}; -use rustc_hir::{MethodKind, Target}; -use rustc_span::{DUMMY_SP, Span, Symbol, sym}; - -use super::{AcceptMapping, AttributeParser, CombineAttributeParser, ConvertFn, FinalizeContext}; -use crate::context::MaybeWarn::Allow; -use crate::context::{ALL_TARGETS, AcceptContext, AllowedTargets, Stage}; -use crate::parser::{ArgParser, MetaItemListParser, MetaItemParser}; -use crate::session_diagnostics; -use crate::session_diagnostics::IncorrectReprFormatGenericCause; +use rustc_hir::attrs::{IntType, ReprAttr}; + +use super::prelude::*; +use crate::session_diagnostics::{self, IncorrectReprFormatGenericCause}; + /// Parse #[repr(...)] forms. /// /// Valid repr contents: any of the primitive integral type names (see diff --git a/compiler/rustc_attr_parsing/src/attributes/rustc_internal.rs b/compiler/rustc_attr_parsing/src/attributes/rustc_internal.rs index efd7b650e44..a995549fc7c 100644 --- a/compiler/rustc_attr_parsing/src/attributes/rustc_internal.rs +++ b/compiler/rustc_attr_parsing/src/attributes/rustc_internal.rs @@ -1,12 +1,6 @@ -use rustc_feature::{AttributeTemplate, template}; -use rustc_hir::Target; -use rustc_hir::attrs::AttributeKind; -use rustc_span::{Symbol, sym}; - -use crate::attributes::{AttributeOrder, OnDuplicate, SingleAttributeParser}; -use crate::context::MaybeWarn::Allow; -use crate::context::{AcceptContext, AllowedTargets, Stage, parse_single_integer}; -use crate::parser::ArgParser; +use super::prelude::*; +use super::util::parse_single_integer; + pub(crate) struct RustcLayoutScalarValidRangeStart; impl<S: Stage> SingleAttributeParser<S> for RustcLayoutScalarValidRangeStart { diff --git a/compiler/rustc_attr_parsing/src/attributes/semantics.rs b/compiler/rustc_attr_parsing/src/attributes/semantics.rs index d4ad861a3a2..d7f62483297 100644 --- a/compiler/rustc_attr_parsing/src/attributes/semantics.rs +++ b/compiler/rustc_attr_parsing/src/attributes/semantics.rs @@ -1,8 +1,5 @@ -use rustc_hir::attrs::AttributeKind; -use rustc_span::{Span, Symbol, sym}; +use super::prelude::*; -use crate::attributes::{NoArgsAttributeParser, OnDuplicate}; -use crate::context::{ALL_TARGETS, AllowedTargets, Stage}; pub(crate) struct MayDangleParser; impl<S: Stage> NoArgsAttributeParser<S> for MayDangleParser { const PATH: &[Symbol] = &[sym::may_dangle]; diff --git a/compiler/rustc_attr_parsing/src/attributes/stability.rs b/compiler/rustc_attr_parsing/src/attributes/stability.rs index 5a26178f84b..b94e23477ff 100644 --- a/compiler/rustc_attr_parsing/src/attributes/stability.rs +++ b/compiler/rustc_attr_parsing/src/attributes/stability.rs @@ -1,20 +1,13 @@ use std::num::NonZero; use rustc_errors::ErrorGuaranteed; -use rustc_feature::template; -use rustc_hir::attrs::AttributeKind; use rustc_hir::{ DefaultBodyStability, MethodKind, PartialConstStability, Stability, StabilityLevel, StableSince, Target, UnstableReason, VERSION_PLACEHOLDER, }; -use rustc_span::{Ident, Span, Symbol, sym}; +use super::prelude::*; use super::util::parse_version; -use super::{AcceptMapping, AttributeParser, OnDuplicate}; -use crate::attributes::NoArgsAttributeParser; -use crate::context::MaybeWarn::Allow; -use crate::context::{AcceptContext, AllowedTargets, FinalizeContext, Stage}; -use crate::parser::{ArgParser, MetaItemParser}; use crate::session_diagnostics::{self, UnsupportedLiteralReason}; macro_rules! reject_outside_std { @@ -54,6 +47,7 @@ const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[ Allow(Target::Static), Allow(Target::ForeignFn), Allow(Target::ForeignStatic), + Allow(Target::ExternCrate), ]); #[derive(Default)] diff --git a/compiler/rustc_attr_parsing/src/attributes/test_attrs.rs b/compiler/rustc_attr_parsing/src/attributes/test_attrs.rs index 164c680b8a8..510ff1ded49 100644 --- a/compiler/rustc_attr_parsing/src/attributes/test_attrs.rs +++ b/compiler/rustc_attr_parsing/src/attributes/test_attrs.rs @@ -1,13 +1,5 @@ -use rustc_feature::{AttributeTemplate, template}; -use rustc_hir::Target; -use rustc_hir::attrs::AttributeKind; -use rustc_hir::lints::AttributeLintKind; -use rustc_span::{Symbol, sym}; +use super::prelude::*; -use crate::attributes::{AttributeOrder, OnDuplicate, SingleAttributeParser}; -use crate::context::MaybeWarn::{Allow, Error}; -use crate::context::{AcceptContext, AllowedTargets, Stage}; -use crate::parser::ArgParser; pub(crate) struct IgnoreParser; impl<S: Stage> SingleAttributeParser<S> for IgnoreParser { @@ -89,7 +81,7 @@ impl<S: Stage> SingleAttributeParser<S> for ShouldPanicParser { return None; }; if !single.path().word_is(sym::expected) { - cx.expected_specific_argument_strings(list.span, vec!["expected"]); + cx.expected_specific_argument_strings(list.span, &[sym::expected]); return None; } let Some(nv) = single.args().name_value() else { diff --git a/compiler/rustc_attr_parsing/src/attributes/traits.rs b/compiler/rustc_attr_parsing/src/attributes/traits.rs index ee9d7ba99cd..89ac1b07d16 100644 --- a/compiler/rustc_attr_parsing/src/attributes/traits.rs +++ b/compiler/rustc_attr_parsing/src/attributes/traits.rs @@ -1,16 +1,14 @@ -use core::mem; - -use rustc_feature::{AttributeTemplate, template}; -use rustc_hir::attrs::AttributeKind; -use rustc_hir::{MethodKind, Target}; -use rustc_span::{Span, Symbol, sym}; +use std::mem; +use super::prelude::*; use crate::attributes::{ AttributeOrder, NoArgsAttributeParser, OnDuplicate, SingleAttributeParser, }; -use crate::context::MaybeWarn::{Allow, Warn}; -use crate::context::{ALL_TARGETS, AcceptContext, AllowedTargets, Stage}; +use crate::context::{AcceptContext, Stage}; use crate::parser::ArgParser; +use crate::target_checking::Policy::{Allow, Warn}; +use crate::target_checking::{ALL_TARGETS, AllowedTargets}; + pub(crate) struct SkipDuringMethodDispatchParser; impl<S: Stage> SingleAttributeParser<S> for SkipDuringMethodDispatchParser { const PATH: &[Symbol] = &[sym::rustc_skip_during_method_dispatch]; @@ -44,7 +42,7 @@ impl<S: Stage> SingleAttributeParser<S> for SkipDuringMethodDispatchParser { Some(key @ sym::array) => (key, &mut array), Some(key @ sym::boxed_slice) => (key, &mut boxed_slice), _ => { - cx.expected_specific_argument(path.span(), vec!["array", "boxed_slice"]); + cx.expected_specific_argument(path.span(), &[sym::array, sym::boxed_slice]); continue; } }; diff --git a/compiler/rustc_attr_parsing/src/attributes/transparency.rs b/compiler/rustc_attr_parsing/src/attributes/transparency.rs index 0ffcf434b52..ea1f5549c4e 100644 --- a/compiler/rustc_attr_parsing/src/attributes/transparency.rs +++ b/compiler/rustc_attr_parsing/src/attributes/transparency.rs @@ -1,13 +1,7 @@ -use rustc_feature::{AttributeTemplate, template}; -use rustc_hir::Target; -use rustc_hir::attrs::AttributeKind; use rustc_span::hygiene::Transparency; -use rustc_span::{Symbol, sym}; -use super::{AttributeOrder, OnDuplicate, SingleAttributeParser}; -use crate::context::MaybeWarn::Allow; -use crate::context::{AcceptContext, AllowedTargets, Stage}; -use crate::parser::ArgParser; +use super::prelude::*; + pub(crate) struct TransparencyParser; // FIXME(jdonszelmann): make these proper diagnostics @@ -35,7 +29,7 @@ impl<S: Stage> SingleAttributeParser<S> for TransparencyParser { Some(_) => { cx.expected_specific_argument_strings( nv.value_span, - vec!["transparent", "semitransparent", "opaque"], + &[sym::transparent, sym::semitransparent, sym::opaque], ); None } diff --git a/compiler/rustc_attr_parsing/src/attributes/util.rs b/compiler/rustc_attr_parsing/src/attributes/util.rs index 10134915b27..77e8c32e59d 100644 --- a/compiler/rustc_attr_parsing/src/attributes/util.rs +++ b/compiler/rustc_attr_parsing/src/attributes/util.rs @@ -1,8 +1,12 @@ -use rustc_ast::attr::{AttributeExt, first_attr_value_str_by_name}; +use rustc_ast::LitKind; +use rustc_ast::attr::AttributeExt; use rustc_feature::is_builtin_attr_name; use rustc_hir::RustcVersion; use rustc_span::{Symbol, sym}; +use crate::context::{AcceptContext, Stage}; +use crate::parser::ArgParser; + /// Parse a rustc version number written inside string literal in an attribute, /// like appears in `since = "1.0.0"`. Suffixes like "-dev" and "-nightly" are /// not accepted in this position, unlike when parsing CFG_RELEASE. @@ -23,10 +27,6 @@ pub fn is_builtin_attr(attr: &impl AttributeExt) -> bool { attr.is_doc_comment() || attr.ident().is_some_and(|ident| is_builtin_attr_name(ident.name)) } -pub fn find_crate_name(attrs: &[impl AttributeExt]) -> Option<Symbol> { - first_attr_value_str_by_name(attrs, sym::crate_name) -} - pub fn is_doc_alias_attrs_contain_symbol<'tcx, T: AttributeExt + 'tcx>( attrs: impl Iterator<Item = &'tcx T>, symbol: Symbol, @@ -56,3 +56,32 @@ pub fn is_doc_alias_attrs_contain_symbol<'tcx, T: AttributeExt + 'tcx>( } false } + +/// Parse a single integer. +/// +/// Used by attributes that take a single integer as argument, such as +/// `#[link_ordinal]` and `#[rustc_layout_scalar_valid_range_start]`. +/// `cx` is the context given to the attribute. +/// `args` is the parser for the attribute arguments. +pub(crate) fn parse_single_integer<S: Stage>( + cx: &mut AcceptContext<'_, '_, S>, + args: &ArgParser<'_>, +) -> Option<u128> { + let Some(list) = args.list() else { + cx.expected_list(cx.attr_span); + return None; + }; + let Some(single) = list.single() else { + cx.expected_single_argument(list.span); + return None; + }; + let Some(lit) = single.lit() else { + cx.expected_integer_literal(single.span()); + return None; + }; + let LitKind::Int(num, _ty) = lit.kind else { + cx.expected_integer_literal(single.span()); + return None; + }; + Some(num.0) +} diff --git a/compiler/rustc_attr_parsing/src/context.rs b/compiler/rustc_attr_parsing/src/context.rs index c0d3bc99ba9..d4b9cfe00ad 100644 --- a/compiler/rustc_attr_parsing/src/context.rs +++ b/compiler/rustc_attr_parsing/src/context.rs @@ -3,28 +3,28 @@ use std::collections::BTreeMap; use std::ops::{Deref, DerefMut}; use std::sync::LazyLock; -use itertools::Itertools; use private::Sealed; -use rustc_ast::{self as ast, AttrStyle, LitKind, MetaItemLit, NodeId}; -use rustc_errors::{DiagCtxtHandle, Diagnostic}; -use rustc_feature::{AttributeTemplate, Features}; +use rustc_ast::{AttrStyle, MetaItemLit, NodeId}; +use rustc_errors::{Diag, Diagnostic, Level}; +use rustc_feature::AttributeTemplate; use rustc_hir::attrs::AttributeKind; use rustc_hir::lints::{AttributeLint, AttributeLintKind}; -use rustc_hir::{ - AttrArgs, AttrItem, AttrPath, Attribute, HashIgnoredAttrId, HirId, MethodKind, Target, -}; +use rustc_hir::{AttrPath, HirId}; use rustc_session::Session; -use rustc_span::{DUMMY_SP, ErrorGuaranteed, Span, Symbol, sym}; +use rustc_span::{ErrorGuaranteed, Span, Symbol}; +use crate::AttributeParser; use crate::attributes::allow_unstable::{ AllowConstFnUnstableParser, AllowInternalUnstableParser, UnstableFeatureBoundParser, }; use crate::attributes::body::CoroutineParser; use crate::attributes::codegen_attrs::{ - ColdParser, CoverageParser, ExportNameParser, NakedParser, NoMangleParser, OptimizeParser, - TargetFeatureParser, TrackCallerParser, UsedParser, + ColdParser, CoverageParser, ExportNameParser, ForceTargetFeatureParser, NakedParser, + NoMangleParser, OptimizeParser, SanitizeParser, TargetFeatureParser, TrackCallerParser, + UsedParser, }; use crate::attributes::confusables::ConfusablesParser; +use crate::attributes::crate_level::CrateNameParser; use crate::attributes::deprecation::DeprecationParser; use crate::attributes::dummy::DummyParser; use crate::attributes::inline::{InlineParser, RustcForceInlineParser}; @@ -65,23 +65,21 @@ use crate::attributes::traits::{ }; use crate::attributes::transparency::TransparencyParser; use crate::attributes::{AttributeParser as _, Combine, Single, WithoutArgs}; -use crate::context::MaybeWarn::{Allow, Error, Warn}; -use crate::parser::{ArgParser, MetaItemParser, PathParser}; -use crate::session_diagnostics::{ - AttributeParseError, AttributeParseErrorReason, InvalidTarget, UnknownMetaItem, -}; +use crate::parser::{ArgParser, PathParser}; +use crate::session_diagnostics::{AttributeParseError, AttributeParseErrorReason, UnknownMetaItem}; +use crate::target_checking::AllowedTargets; type GroupType<S> = LazyLock<GroupTypeInner<S>>; -struct GroupTypeInner<S: Stage> { - accepters: BTreeMap<&'static [Symbol], Vec<GroupTypeInnerAccept<S>>>, - finalizers: Vec<FinalizeFn<S>>, +pub(super) struct GroupTypeInner<S: Stage> { + pub(super) accepters: BTreeMap<&'static [Symbol], Vec<GroupTypeInnerAccept<S>>>, + pub(super) finalizers: Vec<FinalizeFn<S>>, } -struct GroupTypeInnerAccept<S: Stage> { - template: AttributeTemplate, - accept_fn: AcceptFn<S>, - allowed_targets: AllowedTargets, +pub(super) struct GroupTypeInnerAccept<S: Stage> { + pub(super) template: AttributeTemplate, + pub(super) accept_fn: AcceptFn<S>, + pub(super) allowed_targets: AllowedTargets, } type AcceptFn<S> = @@ -161,6 +159,7 @@ attribute_parsers!( // tidy-alphabetical-start Combine<AllowConstFnUnstableParser>, Combine<AllowInternalUnstableParser>, + Combine<ForceTargetFeatureParser>, Combine<ReprParser>, Combine<TargetFeatureParser>, Combine<UnstableFeatureBoundParser>, @@ -168,6 +167,7 @@ attribute_parsers!( // tidy-alphabetical-start Single<CoverageParser>, + Single<CrateNameParser>, Single<CustomMirParser>, Single<DeprecationParser>, Single<DummyParser>, @@ -187,6 +187,7 @@ attribute_parsers!( Single<RustcLayoutScalarValidRangeEnd>, Single<RustcLayoutScalarValidRangeStart>, Single<RustcObjectLifetimeDefaultParser>, + Single<SanitizeParser>, Single<ShouldPanicParser>, Single<SkipDuringMethodDispatchParser>, Single<TransparencyParser>, @@ -264,11 +265,7 @@ impl Stage for Early { sess: &'sess Session, diag: impl for<'x> Diagnostic<'x>, ) -> ErrorGuaranteed { - if self.emit_errors.should_emit() { - sess.dcx().emit_err(diag) - } else { - sess.dcx().create_err(diag).delay_as_bug() - } + self.should_emit().emit_err(sess.dcx().create_err(diag)) } fn should_emit(&self) -> ShouldEmit { @@ -315,7 +312,9 @@ pub struct AcceptContext<'f, 'sess, S: Stage> { /// The span of the attribute currently being parsed pub(crate) attr_span: Span, + /// Whether it is an inner or outer attribute pub(crate) attr_style: AttrStyle, + /// The expected structure of the attribute. /// /// Used in reporting errors to give a hint to users what the attribute *should* look like. @@ -334,7 +333,7 @@ impl<'f, 'sess: 'f, S: Stage> SharedContext<'f, 'sess, S> { /// must be delayed until after HIR is built. This method will take care of the details of /// that. pub(crate) fn emit_lint(&mut self, lint: AttributeLintKind, span: Span) { - if !self.stage.should_emit().should_emit() { + if matches!(self.stage.should_emit(), ShouldEmit::Nothing) { return; } let id = self.target_id; @@ -506,10 +505,11 @@ impl<'f, 'sess: 'f, S: Stage> AcceptContext<'f, 'sess, S> { }) } + /// produces an error along the lines of `expected one of [foo, meow]` pub(crate) fn expected_specific_argument( &self, span: Span, - possibilities: Vec<&'static str>, + possibilities: &[Symbol], ) -> ErrorGuaranteed { self.emit_err(AttributeParseError { span, @@ -525,10 +525,12 @@ impl<'f, 'sess: 'f, S: Stage> AcceptContext<'f, 'sess, S> { }) } + /// produces an error along the lines of `expected one of [foo, meow] as an argument`. + /// i.e. slightly different wording to [`expected_specific_argument`](Self::expected_specific_argument). pub(crate) fn expected_specific_argument_and_list( &self, span: Span, - possibilities: Vec<&'static str>, + possibilities: &[Symbol], ) -> ErrorGuaranteed { self.emit_err(AttributeParseError { span, @@ -544,10 +546,11 @@ impl<'f, 'sess: 'f, S: Stage> AcceptContext<'f, 'sess, S> { }) } + /// produces an error along the lines of `expected one of ["foo", "meow"]` pub(crate) fn expected_specific_argument_strings( &self, span: Span, - possibilities: Vec<&'static str>, + possibilities: &[Symbol], ) -> ErrorGuaranteed { self.emit_err(AttributeParseError { span, @@ -595,7 +598,7 @@ pub struct SharedContext<'p, 'sess, S: Stage> { /// The id ([`NodeId`] if `S` is `Early`, [`HirId`] if `S` is `Late`) of the syntactical component this attribute was applied to pub(crate) target_id: S::Id, - emit_lint: &'p mut dyn FnMut(AttributeLint<S::Id>), + pub(crate) emit_lint: &'p mut dyn FnMut(AttributeLint<S::Id>), } /// Context given to every attribute parser during finalization. @@ -648,8 +651,13 @@ pub enum OmitDoc { Skip, } -#[derive(Copy, Clone)] +#[derive(Copy, Clone, Debug)] pub enum ShouldEmit { + /// The operations will emit errors, and lints, and errors are fatal. + /// + /// Only relevant when early parsing, in late parsing equivalent to `ErrorsAndLints`. + /// Late parsing is never fatal, and instead tries to emit as many diagnostics as possible. + EarlyFatal, /// The operation will emit errors and lints. /// This is usually what you need. ErrorsAndLints, @@ -659,564 +667,12 @@ pub enum ShouldEmit { } impl ShouldEmit { - pub fn should_emit(&self) -> bool { - match self { - ShouldEmit::ErrorsAndLints => true, - ShouldEmit::Nothing => false, - } - } -} - -#[derive(Debug)] -pub(crate) enum AllowedTargets { - AllowList(&'static [MaybeWarn]), - AllowListWarnRest(&'static [MaybeWarn]), -} - -pub(crate) enum AllowedResult { - Allowed, - Warn, - Error, -} - -impl AllowedTargets { - pub(crate) fn is_allowed(&self, target: Target) -> AllowedResult { - match self { - AllowedTargets::AllowList(list) => { - if list.contains(&Allow(target)) { - AllowedResult::Allowed - } else if list.contains(&Warn(target)) { - AllowedResult::Warn - } else { - AllowedResult::Error - } - } - AllowedTargets::AllowListWarnRest(list) => { - if list.contains(&Allow(target)) { - AllowedResult::Allowed - } else if list.contains(&Error(target)) { - AllowedResult::Error - } else { - AllowedResult::Warn - } - } - } - } - - pub(crate) fn allowed_targets(&self) -> Vec<Target> { + pub(crate) fn emit_err(&self, diag: Diag<'_>) -> ErrorGuaranteed { match self { - AllowedTargets::AllowList(list) => list, - AllowedTargets::AllowListWarnRest(list) => list, + ShouldEmit::EarlyFatal if diag.level() == Level::DelayedBug => diag.emit(), + ShouldEmit::EarlyFatal => diag.upgrade_to_fatal().emit(), + ShouldEmit::ErrorsAndLints => diag.emit(), + ShouldEmit::Nothing => diag.delay_as_bug(), } - .iter() - .filter_map(|target| match target { - Allow(target) => Some(*target), - Warn(_) => None, - Error(_) => None, - }) - .collect() - } -} - -#[derive(Debug, Eq, PartialEq)] -pub(crate) enum MaybeWarn { - Allow(Target), - Warn(Target), - Error(Target), -} - -/// Context created once, for example as part of the ast lowering -/// context, through which all attributes can be lowered. -pub struct AttributeParser<'sess, S: Stage = Late> { - pub(crate) tools: Vec<Symbol>, - features: Option<&'sess Features>, - sess: &'sess Session, - stage: S, - - /// *Only* parse attributes with this symbol. - /// - /// Used in cases where we want the lowering infrastructure for parse just a single attribute. - parse_only: Option<Symbol>, -} - -impl<'sess> AttributeParser<'sess, Early> { - /// This method allows you to parse attributes *before* you have access to features or tools. - /// One example where this is necessary, is to parse `feature` attributes themselves for - /// example. - /// - /// Try to use this as little as possible. Attributes *should* be lowered during - /// `rustc_ast_lowering`. Some attributes require access to features to parse, which would - /// crash if you tried to do so through [`parse_limited`](Self::parse_limited). - /// - /// To make sure use is limited, supply a `Symbol` you'd like to parse. Only attributes with - /// that symbol are picked out of the list of instructions and parsed. Those are returned. - /// - /// No diagnostics will be emitted when parsing limited. Lints are not emitted at all, while - /// errors will be emitted as a delayed bugs. in other words, we *expect* attributes parsed - /// with `parse_limited` to be reparsed later during ast lowering where we *do* emit the errors - pub fn parse_limited( - sess: &'sess Session, - attrs: &[ast::Attribute], - sym: Symbol, - target_span: Span, - target_node_id: NodeId, - features: Option<&'sess Features>, - ) -> Option<Attribute> { - let mut p = Self { - features, - tools: Vec::new(), - parse_only: Some(sym), - sess, - stage: Early { emit_errors: ShouldEmit::Nothing }, - }; - let mut parsed = p.parse_attribute_list( - attrs, - target_span, - target_node_id, - Target::Crate, // Does not matter, we're not going to emit errors anyways - OmitDoc::Skip, - std::convert::identity, - |_lint| { - panic!("can't emit lints here for now (nothing uses this atm)"); - }, - ); - assert!(parsed.len() <= 1); - - parsed.pop() - } - - pub fn parse_single<T>( - sess: &'sess Session, - attr: &ast::Attribute, - target_span: Span, - target_node_id: NodeId, - features: Option<&'sess Features>, - emit_errors: ShouldEmit, - parse_fn: fn(cx: &mut AcceptContext<'_, '_, Early>, item: &ArgParser<'_>) -> T, - template: &AttributeTemplate, - ) -> T { - let mut parser = Self { - features, - tools: Vec::new(), - parse_only: None, - sess, - stage: Early { emit_errors }, - }; - let ast::AttrKind::Normal(normal_attr) = &attr.kind else { - panic!("parse_single called on a doc attr") - }; - let meta_parser = MetaItemParser::from_attr(normal_attr, parser.dcx()); - let path = meta_parser.path(); - let args = meta_parser.args(); - let mut cx: AcceptContext<'_, 'sess, Early> = AcceptContext { - shared: SharedContext { - cx: &mut parser, - target_span, - target_id: target_node_id, - emit_lint: &mut |_lint| { - panic!("can't emit lints here for now (nothing uses this atm)"); - }, - }, - attr_span: attr.span, - attr_style: attr.style, - template, - attr_path: path.get_attribute_path(), - }; - parse_fn(&mut cx, args) - } -} - -impl<'sess, S: Stage> AttributeParser<'sess, S> { - pub fn new( - sess: &'sess Session, - features: &'sess Features, - tools: Vec<Symbol>, - stage: S, - ) -> Self { - Self { features: Some(features), tools, parse_only: None, sess, stage } - } - - pub(crate) fn sess(&self) -> &'sess Session { - &self.sess - } - - pub(crate) fn features(&self) -> &'sess Features { - self.features.expect("features not available at this point in the compiler") } - - pub(crate) fn features_option(&self) -> Option<&'sess Features> { - self.features - } - - pub(crate) fn dcx(&self) -> DiagCtxtHandle<'sess> { - self.sess().dcx() - } - - /// Parse a list of attributes. - /// - /// `target_span` is the span of the thing this list of attributes is applied to, - /// and when `omit_doc` is set, doc attributes are filtered out. - pub fn parse_attribute_list( - &mut self, - attrs: &[ast::Attribute], - target_span: Span, - target_id: S::Id, - target: Target, - omit_doc: OmitDoc, - - lower_span: impl Copy + Fn(Span) -> Span, - mut emit_lint: impl FnMut(AttributeLint<S::Id>), - ) -> Vec<Attribute> { - let mut attributes = Vec::new(); - let mut attr_paths = Vec::new(); - - for attr in attrs { - // If we're only looking for a single attribute, skip all the ones we don't care about. - if let Some(expected) = self.parse_only { - if !attr.has_name(expected) { - continue; - } - } - - // Sometimes, for example for `#![doc = include_str!("readme.md")]`, - // doc still contains a non-literal. You might say, when we're lowering attributes - // that's expanded right? But no, sometimes, when parsing attributes on macros, - // we already use the lowering logic and these are still there. So, when `omit_doc` - // is set we *also* want to ignore these. - if omit_doc == OmitDoc::Skip && attr.has_name(sym::doc) { - continue; - } - - match &attr.kind { - ast::AttrKind::DocComment(comment_kind, symbol) => { - if omit_doc == OmitDoc::Skip { - continue; - } - - attributes.push(Attribute::Parsed(AttributeKind::DocComment { - style: attr.style, - kind: *comment_kind, - span: lower_span(attr.span), - comment: *symbol, - })) - } - // // FIXME: make doc attributes go through a proper attribute parser - // ast::AttrKind::Normal(n) if n.has_name(sym::doc) => { - // let p = GenericMetaItemParser::from_attr(&n, self.dcx()); - // - // attributes.push(Attribute::Parsed(AttributeKind::DocComment { - // style: attr.style, - // kind: CommentKind::Line, - // span: attr.span, - // comment: p.args().name_value(), - // })) - // } - ast::AttrKind::Normal(n) => { - attr_paths.push(PathParser::Ast(&n.item.path)); - - let parser = MetaItemParser::from_attr(n, self.dcx()); - let path = parser.path(); - let args = parser.args(); - let parts = path.segments().map(|i| i.name).collect::<Vec<_>>(); - - if let Some(accepts) = S::parsers().accepters.get(parts.as_slice()) { - for accept in accepts { - let mut cx: AcceptContext<'_, 'sess, S> = AcceptContext { - shared: SharedContext { - cx: self, - target_span, - target_id, - emit_lint: &mut emit_lint, - }, - attr_span: lower_span(attr.span), - attr_style: attr.style, - template: &accept.template, - attr_path: path.get_attribute_path(), - }; - - (accept.accept_fn)(&mut cx, args); - - if self.stage.should_emit().should_emit() { - match accept.allowed_targets.is_allowed(target) { - AllowedResult::Allowed => {} - AllowedResult::Warn => { - let allowed_targets = - accept.allowed_targets.allowed_targets(); - let (applied, only) = allowed_targets_applied( - allowed_targets, - target, - self.features, - ); - emit_lint(AttributeLint { - id: target_id, - span: attr.span, - kind: AttributeLintKind::InvalidTarget { - name: parts[0], - target, - only: if only { "only " } else { "" }, - applied, - }, - }); - } - AllowedResult::Error => { - let allowed_targets = - accept.allowed_targets.allowed_targets(); - let (applied, only) = allowed_targets_applied( - allowed_targets, - target, - self.features, - ); - self.dcx().emit_err(InvalidTarget { - span: attr.span, - name: parts[0], - target: target.plural_name(), - only: if only { "only " } else { "" }, - applied, - }); - } - } - } - } - } else { - // If we're here, we must be compiling a tool attribute... Or someone - // forgot to parse their fancy new attribute. Let's warn them in any case. - // If you are that person, and you really think your attribute should - // remain unparsed, carefully read the documentation in this module and if - // you still think so you can add an exception to this assertion. - - // FIXME(jdonszelmann): convert other attributes, and check with this that - // we caught em all - // const FIXME_TEMPORARY_ATTR_ALLOWLIST: &[Symbol] = &[sym::cfg]; - // assert!( - // self.tools.contains(&parts[0]) || true, - // // || FIXME_TEMPORARY_ATTR_ALLOWLIST.contains(&parts[0]), - // "attribute {path} wasn't parsed and isn't a know tool attribute", - // ); - - attributes.push(Attribute::Unparsed(Box::new(AttrItem { - path: AttrPath::from_ast(&n.item.path), - args: self.lower_attr_args(&n.item.args, lower_span), - id: HashIgnoredAttrId { attr_id: attr.id }, - style: attr.style, - span: lower_span(attr.span), - }))); - } - } - } - } - - let mut parsed_attributes = Vec::new(); - for f in &S::parsers().finalizers { - if let Some(attr) = f(&mut FinalizeContext { - shared: SharedContext { - cx: self, - target_span, - target_id, - emit_lint: &mut emit_lint, - }, - all_attrs: &attr_paths, - }) { - parsed_attributes.push(Attribute::Parsed(attr)); - } - } - - attributes.extend(parsed_attributes); - - attributes - } - - /// Returns whether there is a parser for an attribute with this name - pub fn is_parsed_attribute(path: &[Symbol]) -> bool { - Late::parsers().accepters.contains_key(path) - } - - fn lower_attr_args(&self, args: &ast::AttrArgs, lower_span: impl Fn(Span) -> Span) -> AttrArgs { - match args { - ast::AttrArgs::Empty => AttrArgs::Empty, - ast::AttrArgs::Delimited(args) => AttrArgs::Delimited(args.clone()), - // This is an inert key-value attribute - it will never be visible to macros - // after it gets lowered to HIR. Therefore, we can extract literals to handle - // nonterminals in `#[doc]` (e.g. `#[doc = $e]`). - ast::AttrArgs::Eq { eq_span, expr } => { - // In valid code the value always ends up as a single literal. Otherwise, a dummy - // literal suffices because the error is handled elsewhere. - let lit = if let ast::ExprKind::Lit(token_lit) = expr.kind - && let Ok(lit) = - ast::MetaItemLit::from_token_lit(token_lit, lower_span(expr.span)) - { - lit - } else { - let guar = self.dcx().span_delayed_bug( - args.span().unwrap_or(DUMMY_SP), - "expr in place where literal is expected (builtin attr parsing)", - ); - ast::MetaItemLit { - symbol: sym::dummy, - suffix: None, - kind: ast::LitKind::Err(guar), - span: DUMMY_SP, - } - }; - AttrArgs::Eq { eq_span: lower_span(*eq_span), expr: lit } - } - } - } -} - -/// Takes a list of `allowed_targets` for an attribute, and the `target` the attribute was applied to. -/// Does some heuristic-based filtering to remove uninteresting targets, and formats the targets into a string -pub(crate) fn allowed_targets_applied( - mut allowed_targets: Vec<Target>, - target: Target, - features: Option<&Features>, -) -> (String, bool) { - // Remove unstable targets from `allowed_targets` if their features are not enabled - if let Some(features) = features { - if !features.fn_delegation() { - allowed_targets.retain(|t| !matches!(t, Target::Delegation { .. })); - } - if !features.stmt_expr_attributes() { - allowed_targets.retain(|t| !matches!(t, Target::Expression | Target::Statement)); - } - if !features.extern_types() { - allowed_targets.retain(|t| !matches!(t, Target::ForeignTy)); - } - } - - // We define groups of "similar" targets. - // If at least two of the targets are allowed, and the `target` is not in the group, - // we collapse the entire group to a single entry to simplify the target list - const FUNCTION_LIKE: &[Target] = &[ - Target::Fn, - Target::Closure, - Target::ForeignFn, - Target::Method(MethodKind::Inherent), - Target::Method(MethodKind::Trait { body: false }), - Target::Method(MethodKind::Trait { body: true }), - Target::Method(MethodKind::TraitImpl), - ]; - const METHOD_LIKE: &[Target] = &[ - Target::Method(MethodKind::Inherent), - Target::Method(MethodKind::Trait { body: false }), - Target::Method(MethodKind::Trait { body: true }), - Target::Method(MethodKind::TraitImpl), - ]; - const IMPL_LIKE: &[Target] = - &[Target::Impl { of_trait: false }, Target::Impl { of_trait: true }]; - const ADT_LIKE: &[Target] = &[Target::Struct, Target::Enum]; - - let mut added_fake_targets = Vec::new(); - filter_targets( - &mut allowed_targets, - FUNCTION_LIKE, - "functions", - target, - &mut added_fake_targets, - ); - filter_targets(&mut allowed_targets, METHOD_LIKE, "methods", target, &mut added_fake_targets); - filter_targets(&mut allowed_targets, IMPL_LIKE, "impl blocks", target, &mut added_fake_targets); - filter_targets(&mut allowed_targets, ADT_LIKE, "data types", target, &mut added_fake_targets); - - // If there is now only 1 target left, show that as the only possible target - ( - added_fake_targets - .iter() - .copied() - .chain(allowed_targets.iter().map(|t| t.plural_name())) - .join(", "), - allowed_targets.len() + added_fake_targets.len() == 1, - ) -} - -fn filter_targets( - allowed_targets: &mut Vec<Target>, - target_group: &'static [Target], - target_group_name: &'static str, - target: Target, - added_fake_targets: &mut Vec<&'static str>, -) { - if target_group.contains(&target) { - return; - } - if allowed_targets.iter().filter(|at| target_group.contains(at)).count() < 2 { - return; - } - allowed_targets.retain(|t| !target_group.contains(t)); - added_fake_targets.push(target_group_name); -} - -/// This is the list of all targets to which a attribute can be applied -/// This is used for: -/// - `rustc_dummy`, which can be applied to all targets -/// - Attributes that are not parted to the new target system yet can use this list as a placeholder -pub(crate) const ALL_TARGETS: &'static [MaybeWarn] = &[ - Allow(Target::ExternCrate), - Allow(Target::Use), - Allow(Target::Static), - Allow(Target::Const), - Allow(Target::Fn), - Allow(Target::Closure), - Allow(Target::Mod), - Allow(Target::ForeignMod), - Allow(Target::GlobalAsm), - Allow(Target::TyAlias), - Allow(Target::Enum), - Allow(Target::Variant), - Allow(Target::Struct), - Allow(Target::Field), - Allow(Target::Union), - Allow(Target::Trait), - Allow(Target::TraitAlias), - Allow(Target::Impl { of_trait: false }), - Allow(Target::Impl { of_trait: true }), - Allow(Target::Expression), - Allow(Target::Statement), - Allow(Target::Arm), - Allow(Target::AssocConst), - Allow(Target::Method(MethodKind::Inherent)), - Allow(Target::Method(MethodKind::Trait { body: false })), - Allow(Target::Method(MethodKind::Trait { body: true })), - Allow(Target::Method(MethodKind::TraitImpl)), - Allow(Target::AssocTy), - Allow(Target::ForeignFn), - Allow(Target::ForeignStatic), - Allow(Target::ForeignTy), - Allow(Target::MacroDef), - Allow(Target::Param), - Allow(Target::PatField), - Allow(Target::ExprField), - Allow(Target::WherePredicate), - Allow(Target::MacroCall), - Allow(Target::Crate), - Allow(Target::Delegation { mac: false }), - Allow(Target::Delegation { mac: true }), -]; - -/// Parse a single integer. -/// -/// Used by attributes that take a single integer as argument, such as -/// `#[link_ordinal]` and `#[rustc_layout_scalar_valid_range_start]`. -/// `cx` is the context given to the attribute. -/// `args` is the parser for the attribute arguments. -pub(crate) fn parse_single_integer<S: Stage>( - cx: &mut AcceptContext<'_, '_, S>, - args: &ArgParser<'_>, -) -> Option<u128> { - let Some(list) = args.list() else { - cx.expected_list(cx.attr_span); - return None; - }; - let Some(single) = list.single() else { - cx.expected_single_argument(list.span); - return None; - }; - let Some(lit) = single.lit() else { - cx.expected_integer_literal(single.span()); - return None; - }; - let LitKind::Int(num, _ty) = lit.kind else { - cx.expected_integer_literal(single.span()); - return None; - }; - Some(num.0) } diff --git a/compiler/rustc_attr_parsing/src/interface.rs b/compiler/rustc_attr_parsing/src/interface.rs new file mode 100644 index 00000000000..60523c2877c --- /dev/null +++ b/compiler/rustc_attr_parsing/src/interface.rs @@ -0,0 +1,370 @@ +use std::borrow::Cow; + +use rustc_ast as ast; +use rustc_ast::NodeId; +use rustc_errors::DiagCtxtHandle; +use rustc_feature::{AttributeTemplate, Features}; +use rustc_hir::attrs::AttributeKind; +use rustc_hir::lints::AttributeLint; +use rustc_hir::{AttrArgs, AttrItem, AttrPath, Attribute, HashIgnoredAttrId, Target}; +use rustc_session::Session; +use rustc_span::{DUMMY_SP, Span, Symbol, sym}; + +use crate::context::{AcceptContext, FinalizeContext, SharedContext, Stage}; +use crate::parser::{ArgParser, MetaItemParser, PathParser}; +use crate::{Early, Late, OmitDoc, ShouldEmit}; + +/// Context created once, for example as part of the ast lowering +/// context, through which all attributes can be lowered. +pub struct AttributeParser<'sess, S: Stage = Late> { + pub(crate) tools: Vec<Symbol>, + pub(crate) features: Option<&'sess Features>, + pub(crate) sess: &'sess Session, + pub(crate) stage: S, + + /// *Only* parse attributes with this symbol. + /// + /// Used in cases where we want the lowering infrastructure for parse just a single attribute. + parse_only: Option<Symbol>, +} + +impl<'sess> AttributeParser<'sess, Early> { + /// This method allows you to parse attributes *before* you have access to features or tools. + /// One example where this is necessary, is to parse `feature` attributes themselves for + /// example. + /// + /// Try to use this as little as possible. Attributes *should* be lowered during + /// `rustc_ast_lowering`. Some attributes require access to features to parse, which would + /// crash if you tried to do so through [`parse_limited`](Self::parse_limited). + /// + /// To make sure use is limited, supply a `Symbol` you'd like to parse. Only attributes with + /// that symbol are picked out of the list of instructions and parsed. Those are returned. + /// + /// No diagnostics will be emitted when parsing limited. Lints are not emitted at all, while + /// errors will be emitted as a delayed bugs. in other words, we *expect* attributes parsed + /// with `parse_limited` to be reparsed later during ast lowering where we *do* emit the errors + pub fn parse_limited( + sess: &'sess Session, + attrs: &[ast::Attribute], + sym: Symbol, + target_span: Span, + target_node_id: NodeId, + features: Option<&'sess Features>, + ) -> Option<Attribute> { + Self::parse_limited_should_emit( + sess, + attrs, + sym, + target_span, + target_node_id, + features, + ShouldEmit::Nothing, + ) + } + + /// Usually you want `parse_limited`, which defaults to no errors. + pub fn parse_limited_should_emit( + sess: &'sess Session, + attrs: &[ast::Attribute], + sym: Symbol, + target_span: Span, + target_node_id: NodeId, + features: Option<&'sess Features>, + should_emit: ShouldEmit, + ) -> Option<Attribute> { + let mut parsed = Self::parse_limited_all( + sess, + attrs, + Some(sym), + Target::Crate, // Does not matter, we're not going to emit errors anyways + target_span, + target_node_id, + features, + should_emit, + ); + assert!(parsed.len() <= 1); + parsed.pop() + } + + pub fn parse_limited_all( + sess: &'sess Session, + attrs: &[ast::Attribute], + parse_only: Option<Symbol>, + target: Target, + target_span: Span, + target_node_id: NodeId, + features: Option<&'sess Features>, + emit_errors: ShouldEmit, + ) -> Vec<Attribute> { + let mut p = + Self { features, tools: Vec::new(), parse_only, sess, stage: Early { emit_errors } }; + p.parse_attribute_list( + attrs, + target_span, + target_node_id, + target, + OmitDoc::Skip, + std::convert::identity, + |lint| { + crate::lints::emit_attribute_lint(&lint, sess); + }, + ) + } + + pub fn parse_single<T>( + sess: &'sess Session, + attr: &ast::Attribute, + target_span: Span, + target_node_id: NodeId, + features: Option<&'sess Features>, + emit_errors: ShouldEmit, + parse_fn: fn(cx: &mut AcceptContext<'_, '_, Early>, item: &ArgParser<'_>) -> Option<T>, + template: &AttributeTemplate, + ) -> Option<T> { + let mut parser = Self { + features, + tools: Vec::new(), + parse_only: None, + sess, + stage: Early { emit_errors }, + }; + let ast::AttrKind::Normal(normal_attr) = &attr.kind else { + panic!("parse_single called on a doc attr") + }; + let parts = + normal_attr.item.path.segments.iter().map(|seg| seg.ident.name).collect::<Vec<_>>(); + let meta_parser = MetaItemParser::from_attr(normal_attr, &parts, &sess.psess, emit_errors)?; + let path = meta_parser.path(); + let args = meta_parser.args(); + let mut cx: AcceptContext<'_, 'sess, Early> = AcceptContext { + shared: SharedContext { + cx: &mut parser, + target_span, + target_id: target_node_id, + emit_lint: &mut |lint| { + crate::lints::emit_attribute_lint(&lint, sess); + }, + }, + attr_span: attr.span, + attr_style: attr.style, + template, + attr_path: path.get_attribute_path(), + }; + parse_fn(&mut cx, args) + } +} + +impl<'sess, S: Stage> AttributeParser<'sess, S> { + pub fn new( + sess: &'sess Session, + features: &'sess Features, + tools: Vec<Symbol>, + stage: S, + ) -> Self { + Self { features: Some(features), tools, parse_only: None, sess, stage } + } + + pub(crate) fn sess(&self) -> &'sess Session { + &self.sess + } + + pub(crate) fn features(&self) -> &'sess Features { + self.features.expect("features not available at this point in the compiler") + } + + pub(crate) fn features_option(&self) -> Option<&'sess Features> { + self.features + } + + pub(crate) fn dcx(&self) -> DiagCtxtHandle<'sess> { + self.sess().dcx() + } + + /// Parse a list of attributes. + /// + /// `target_span` is the span of the thing this list of attributes is applied to, + /// and when `omit_doc` is set, doc attributes are filtered out. + pub fn parse_attribute_list( + &mut self, + attrs: &[ast::Attribute], + target_span: Span, + target_id: S::Id, + target: Target, + omit_doc: OmitDoc, + + lower_span: impl Copy + Fn(Span) -> Span, + mut emit_lint: impl FnMut(AttributeLint<S::Id>), + ) -> Vec<Attribute> { + let mut attributes = Vec::new(); + let mut attr_paths = Vec::new(); + + for attr in attrs { + // If we're only looking for a single attribute, skip all the ones we don't care about. + if let Some(expected) = self.parse_only { + if !attr.has_name(expected) { + continue; + } + } + + // Sometimes, for example for `#![doc = include_str!("readme.md")]`, + // doc still contains a non-literal. You might say, when we're lowering attributes + // that's expanded right? But no, sometimes, when parsing attributes on macros, + // we already use the lowering logic and these are still there. So, when `omit_doc` + // is set we *also* want to ignore these. + if omit_doc == OmitDoc::Skip && attr.has_name(sym::doc) { + continue; + } + + match &attr.kind { + ast::AttrKind::DocComment(comment_kind, symbol) => { + if omit_doc == OmitDoc::Skip { + continue; + } + + attributes.push(Attribute::Parsed(AttributeKind::DocComment { + style: attr.style, + kind: *comment_kind, + span: lower_span(attr.span), + comment: *symbol, + })) + } + // // FIXME: make doc attributes go through a proper attribute parser + // ast::AttrKind::Normal(n) if n.has_name(sym::doc) => { + // let p = GenericMetaItemParser::from_attr(&n, self.dcx()); + // + // attributes.push(Attribute::Parsed(AttributeKind::DocComment { + // style: attr.style, + // kind: CommentKind::Line, + // span: attr.span, + // comment: p.args().name_value(), + // })) + // } + ast::AttrKind::Normal(n) => { + attr_paths.push(PathParser(Cow::Borrowed(&n.item.path))); + + let parts = + n.item.path.segments.iter().map(|seg| seg.ident.name).collect::<Vec<_>>(); + + if let Some(accepts) = S::parsers().accepters.get(parts.as_slice()) { + let Some(parser) = MetaItemParser::from_attr( + n, + &parts, + &self.sess.psess, + self.stage.should_emit(), + ) else { + continue; + }; + let path = parser.path(); + let args = parser.args(); + for accept in accepts { + let mut cx: AcceptContext<'_, 'sess, S> = AcceptContext { + shared: SharedContext { + cx: self, + target_span, + target_id, + emit_lint: &mut emit_lint, + }, + attr_span: lower_span(attr.span), + attr_style: attr.style, + template: &accept.template, + attr_path: path.get_attribute_path(), + }; + + (accept.accept_fn)(&mut cx, args); + + if !matches!(self.stage.should_emit(), ShouldEmit::Nothing) { + self.check_target( + path.get_attribute_path(), + attr.span, + &accept.allowed_targets, + target, + target_id, + &mut emit_lint, + ); + } + } + } else { + // If we're here, we must be compiling a tool attribute... Or someone + // forgot to parse their fancy new attribute. Let's warn them in any case. + // If you are that person, and you really think your attribute should + // remain unparsed, carefully read the documentation in this module and if + // you still think so you can add an exception to this assertion. + + // FIXME(jdonszelmann): convert other attributes, and check with this that + // we caught em all + // const FIXME_TEMPORARY_ATTR_ALLOWLIST: &[Symbol] = &[sym::cfg]; + // assert!( + // self.tools.contains(&parts[0]) || true, + // // || FIXME_TEMPORARY_ATTR_ALLOWLIST.contains(&parts[0]), + // "attribute {path} wasn't parsed and isn't a know tool attribute", + // ); + + attributes.push(Attribute::Unparsed(Box::new(AttrItem { + path: AttrPath::from_ast(&n.item.path), + args: self.lower_attr_args(&n.item.args, lower_span), + id: HashIgnoredAttrId { attr_id: attr.id }, + style: attr.style, + span: lower_span(attr.span), + }))); + } + } + } + } + + let mut parsed_attributes = Vec::new(); + for f in &S::parsers().finalizers { + if let Some(attr) = f(&mut FinalizeContext { + shared: SharedContext { + cx: self, + target_span, + target_id, + emit_lint: &mut emit_lint, + }, + all_attrs: &attr_paths, + }) { + parsed_attributes.push(Attribute::Parsed(attr)); + } + } + + attributes.extend(parsed_attributes); + + attributes + } + + /// Returns whether there is a parser for an attribute with this name + pub fn is_parsed_attribute(path: &[Symbol]) -> bool { + Late::parsers().accepters.contains_key(path) + } + + fn lower_attr_args(&self, args: &ast::AttrArgs, lower_span: impl Fn(Span) -> Span) -> AttrArgs { + match args { + ast::AttrArgs::Empty => AttrArgs::Empty, + ast::AttrArgs::Delimited(args) => AttrArgs::Delimited(args.clone()), + // This is an inert key-value attribute - it will never be visible to macros + // after it gets lowered to HIR. Therefore, we can extract literals to handle + // nonterminals in `#[doc]` (e.g. `#[doc = $e]`). + ast::AttrArgs::Eq { eq_span, expr } => { + // In valid code the value always ends up as a single literal. Otherwise, a dummy + // literal suffices because the error is handled elsewhere. + let lit = if let ast::ExprKind::Lit(token_lit) = expr.kind + && let Ok(lit) = + ast::MetaItemLit::from_token_lit(token_lit, lower_span(expr.span)) + { + lit + } else { + let guar = self.dcx().span_delayed_bug( + args.span().unwrap_or(DUMMY_SP), + "expr in place where literal is expected (builtin attr parsing)", + ); + ast::MetaItemLit { + symbol: sym::dummy, + suffix: None, + kind: ast::LitKind::Err(guar), + span: DUMMY_SP, + } + }; + AttrArgs::Eq { eq_span: lower_span(*eq_span), expr: lit } + } + } + } +} diff --git a/compiler/rustc_attr_parsing/src/lib.rs b/compiler/rustc_attr_parsing/src/lib.rs index fc1377e5314..4dd908cdc40 100644 --- a/compiler/rustc_attr_parsing/src/lib.rs +++ b/compiler/rustc_attr_parsing/src/lib.rs @@ -84,18 +84,31 @@ // tidy-alphabetical-end #[macro_use] +/// All the individual attribute parsers for each of rustc's built-in attributes. mod attributes; + +/// All the important types given to attribute parsers when parsing pub(crate) mod context; -mod lints; + +/// Code that other crates interact with, to actually parse a list (or sometimes single) +/// attribute. +mod interface; + +/// Despite this entire module called attribute parsing and the term being a little overloaded, +/// in this module the code lives that actually breaks up tokenstreams into semantic pieces of attributes, +/// like lists or name-value pairs. pub mod parser; + +mod lints; mod session_diagnostics; +mod target_checking; +pub mod validate_attr; pub use attributes::cfg::{CFG_TEMPLATE, EvalConfigResult, eval_config_entry, parse_cfg_attr}; pub use attributes::cfg_old::*; -pub use attributes::util::{ - find_crate_name, is_builtin_attr, is_doc_alias_attrs_contain_symbol, parse_version, -}; -pub use context::{AttributeParser, Early, Late, OmitDoc, ShouldEmit}; +pub use attributes::util::{is_builtin_attr, is_doc_alias_attrs_contain_symbol, parse_version}; +pub use context::{Early, Late, OmitDoc, ShouldEmit}; +pub use interface::AttributeParser; pub use lints::emit_attribute_lint; rustc_fluent_macro::fluent_messages! { "../messages.ftl" } diff --git a/compiler/rustc_attr_parsing/src/lints.rs b/compiler/rustc_attr_parsing/src/lints.rs index 733225bab59..84ae19c4fc6 100644 --- a/compiler/rustc_attr_parsing/src/lints.rs +++ b/compiler/rustc_attr_parsing/src/lints.rs @@ -1,11 +1,13 @@ +use std::borrow::Cow; + use rustc_errors::{DiagArgValue, LintEmitter}; +use rustc_hir::Target; use rustc_hir::lints::{AttributeLint, AttributeLintKind}; -use rustc_hir::{HirId, Target}; use rustc_span::sym; use crate::session_diagnostics; -pub fn emit_attribute_lint<L: LintEmitter>(lint: &AttributeLint<HirId>, lint_emitter: L) { +pub fn emit_attribute_lint<L: LintEmitter>(lint: &AttributeLint<L::Id>, lint_emitter: L) { let AttributeLint { id, span, kind } = lint; match kind { @@ -35,12 +37,18 @@ pub fn emit_attribute_lint<L: LintEmitter>(lint: &AttributeLint<HirId>, lint_emi *first_span, session_diagnostics::EmptyAttributeList { attr_span: *first_span }, ), - &AttributeLintKind::InvalidTarget { name, target, ref applied, only } => lint_emitter + AttributeLintKind::InvalidTarget { name, target, applied, only } => lint_emitter .emit_node_span_lint( // This check is here because `deprecated` had its own lint group and removing this would be a breaking change - if name == sym::deprecated - && ![Target::Closure, Target::Expression, Target::Statement, Target::Arm] - .contains(&target) + if name.segments[0].name == sym::deprecated + && ![ + Target::Closure, + Target::Expression, + Target::Statement, + Target::Arm, + Target::MacroCall, + ] + .contains(target) { rustc_session::lint::builtin::USELESS_DEPRECATED } else { @@ -49,10 +57,13 @@ pub fn emit_attribute_lint<L: LintEmitter>(lint: &AttributeLint<HirId>, lint_emi *id, *span, session_diagnostics::InvalidTargetLint { - name, + name: name.clone(), target: target.plural_name(), - applied: applied.clone(), + applied: DiagArgValue::StrListSepByAnd( + applied.into_iter().map(|i| Cow::Owned(i.to_string())).collect(), + ), only, + attr_span: *span, }, ), } diff --git a/compiler/rustc_attr_parsing/src/parser.rs b/compiler/rustc_attr_parsing/src/parser.rs index aecaae947c9..6d3cf684296 100644 --- a/compiler/rustc_attr_parsing/src/parser.rs +++ b/compiler/rustc_attr_parsing/src/parser.rs @@ -3,45 +3,30 @@ //! //! FIXME(jdonszelmann): delete `rustc_ast/attr/mod.rs` +use std::borrow::Cow; use std::fmt::{Debug, Display}; -use std::iter::Peekable; -use rustc_ast::token::{self, Delimiter, Token}; -use rustc_ast::tokenstream::{TokenStreamIter, TokenTree}; +use rustc_ast::token::{self, Delimiter, MetaVarKind}; +use rustc_ast::tokenstream::TokenStream; use rustc_ast::{AttrArgs, DelimArgs, Expr, ExprKind, LitKind, MetaItemLit, NormalAttr, Path}; use rustc_ast_pretty::pprust; -use rustc_errors::DiagCtxtHandle; +use rustc_errors::PResult; use rustc_hir::{self as hir, AttrPath}; -use rustc_span::{ErrorGuaranteed, Ident, Span, Symbol, kw, sym}; - -pub struct SegmentIterator<'a> { - offset: usize, - path: &'a PathParser<'a>, -} - -impl<'a> Iterator for SegmentIterator<'a> { - type Item = &'a Ident; - - fn next(&mut self) -> Option<Self::Item> { - if self.offset >= self.path.len() { - return None; - } - - let res = match self.path { - PathParser::Ast(ast_path) => &ast_path.segments[self.offset].ident, - PathParser::Attr(attr_path) => &attr_path.segments[self.offset], - }; - - self.offset += 1; - Some(res) - } -} +use rustc_parse::exp; +use rustc_parse::parser::{Parser, PathStyle, token_descr}; +use rustc_session::errors::report_lit_error; +use rustc_session::parse::ParseSess; +use rustc_span::{ErrorGuaranteed, Ident, Span, Symbol, sym}; +use thin_vec::ThinVec; + +use crate::ShouldEmit; +use crate::session_diagnostics::{ + InvalidMetaItem, InvalidMetaItemQuoteIdentSugg, InvalidMetaItemRemoveNegSugg, MetaBadDelim, + MetaBadDelimSugg, SuffixedLiteralInAttribute, +}; #[derive(Clone, Debug)] -pub enum PathParser<'a> { - Ast(&'a Path), - Attr(AttrPath), -} +pub struct PathParser<'a>(pub Cow<'a, Path>); impl<'a> PathParser<'a> { pub fn get_attribute_path(&self) -> hir::AttrPath { @@ -52,21 +37,15 @@ impl<'a> PathParser<'a> { } pub fn segments(&'a self) -> impl Iterator<Item = &'a Ident> { - SegmentIterator { offset: 0, path: self } + self.0.segments.iter().map(|seg| &seg.ident) } pub fn span(&self) -> Span { - match self { - PathParser::Ast(path) => path.span, - PathParser::Attr(attr_path) => attr_path.span, - } + self.0.span } pub fn len(&self) -> usize { - match self { - PathParser::Ast(path) => path.segments.len(), - PathParser::Attr(attr_path) => attr_path.segments.len(), - } + self.0.segments.len() } pub fn segments_is(&self, segments: &[Symbol]) -> bool { @@ -99,10 +78,7 @@ impl<'a> PathParser<'a> { impl Display for PathParser<'_> { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { - match self { - PathParser::Ast(path) => write!(f, "{}", pprust::path_to_string(path)), - PathParser::Attr(attr_path) => write!(f, "{attr_path}"), - } + write!(f, "{}", pprust::path_to_string(&self.0)) } } @@ -123,21 +99,39 @@ impl<'a> ArgParser<'a> { } } - pub fn from_attr_args<'sess>(value: &'a AttrArgs, dcx: DiagCtxtHandle<'sess>) -> Self { - match value { + pub fn from_attr_args<'sess>( + value: &'a AttrArgs, + parts: &[Symbol], + psess: &'sess ParseSess, + should_emit: ShouldEmit, + ) -> Option<Self> { + Some(match value { AttrArgs::Empty => Self::NoArgs, - AttrArgs::Delimited(args) if args.delim == Delimiter::Parenthesis => { - Self::List(MetaItemListParser::new(args, dcx)) - } AttrArgs::Delimited(args) => { - Self::List(MetaItemListParser { sub_parsers: vec![], span: args.dspan.entire() }) + // The arguments of rustc_dummy are not validated if the arguments are delimited + if parts == &[sym::rustc_dummy] { + return Some(ArgParser::List(MetaItemListParser { + sub_parsers: ThinVec::new(), + span: args.dspan.entire(), + })); + } + + if args.delim != Delimiter::Parenthesis { + psess.dcx().emit_err(MetaBadDelim { + span: args.dspan.entire(), + sugg: MetaBadDelimSugg { open: args.dspan.open, close: args.dspan.close }, + }); + return None; + } + + Self::List(MetaItemListParser::new(args, psess, should_emit)?) } AttrArgs::Eq { eq_span, expr } => Self::NameValue(NameValueParser { eq_span: *eq_span, - value: expr_to_lit(dcx, &expr, *eq_span), + value: expr_to_lit(psess, &expr, expr.span, should_emit)?, value_span: expr.span, }), - } + }) } /// Asserts that this MetaItem is a list @@ -249,11 +243,16 @@ impl<'a> Debug for MetaItemParser<'a> { impl<'a> MetaItemParser<'a> { /// Create a new parser from a [`NormalAttr`], which is stored inside of any /// [`ast::Attribute`](rustc_ast::Attribute) - pub fn from_attr<'sess>(attr: &'a NormalAttr, dcx: DiagCtxtHandle<'sess>) -> Self { - Self { - path: PathParser::Ast(&attr.item.path), - args: ArgParser::from_attr_args(&attr.item.args, dcx), - } + pub fn from_attr<'sess>( + attr: &'a NormalAttr, + parts: &[Symbol], + psess: &'sess ParseSess, + should_emit: ShouldEmit, + ) -> Option<Self> { + Some(Self { + path: PathParser(Cow::Borrowed(&attr.item.path)), + args: ArgParser::from_attr_args(&attr.item.args, parts, psess, should_emit)?, + }) } } @@ -318,215 +317,235 @@ impl NameValueParser { } } -fn expr_to_lit(dcx: DiagCtxtHandle<'_>, expr: &Expr, span: Span) -> MetaItemLit { - // In valid code the value always ends up as a single literal. Otherwise, a dummy - // literal suffices because the error is handled elsewhere. - if let ExprKind::Lit(token_lit) = expr.kind - && let Ok(lit) = MetaItemLit::from_token_lit(token_lit, expr.span) - { - lit +fn expr_to_lit( + psess: &ParseSess, + expr: &Expr, + span: Span, + should_emit: ShouldEmit, +) -> Option<MetaItemLit> { + if let ExprKind::Lit(token_lit) = expr.kind { + let res = MetaItemLit::from_token_lit(token_lit, expr.span); + match res { + Ok(lit) => { + if token_lit.suffix.is_some() { + should_emit.emit_err( + psess.dcx().create_err(SuffixedLiteralInAttribute { span: lit.span }), + ); + None + } else { + if !lit.kind.is_unsuffixed() { + // Emit error and continue, we can still parse the attribute as if the suffix isn't there + should_emit.emit_err( + psess.dcx().create_err(SuffixedLiteralInAttribute { span: lit.span }), + ); + } + + Some(lit) + } + } + Err(err) => { + let guar = report_lit_error(psess, err, token_lit, expr.span); + let lit = MetaItemLit { + symbol: token_lit.symbol, + suffix: token_lit.suffix, + kind: LitKind::Err(guar), + span: expr.span, + }; + Some(lit) + } + } } else { - let guar = dcx.span_delayed_bug( - span, - "expr in place where literal is expected (builtin attr parsing)", - ); - MetaItemLit { symbol: sym::dummy, suffix: None, kind: LitKind::Err(guar), span } + if matches!(should_emit, ShouldEmit::Nothing) { + return None; + } + + // Example cases: + // - `#[foo = 1+1]`: results in `ast::ExprKind::BinOp`. + // - `#[foo = include_str!("nonexistent-file.rs")]`: + // results in `ast::ExprKind::Err`. In that case we delay + // the error because an earlier error will have already + // been reported. + let msg = "attribute value must be a literal"; + let err = psess.dcx().struct_span_err(span, msg); + should_emit.emit_err(err); + None } } struct MetaItemListParserContext<'a, 'sess> { - // the tokens inside the delimiters, so `#[some::attr(a b c)]` would have `a b c` inside - inside_delimiters: Peekable<TokenStreamIter<'a>>, - dcx: DiagCtxtHandle<'sess>, + parser: &'a mut Parser<'sess>, + should_emit: ShouldEmit, } impl<'a, 'sess> MetaItemListParserContext<'a, 'sess> { - fn done(&mut self) -> bool { - self.inside_delimiters.peek().is_none() - } - - fn next_path(&mut self) -> Option<AttrPath> { - // FIXME: Share code with `parse_path`. - let tt = self.inside_delimiters.next().map(|tt| TokenTree::uninterpolate(tt)); - - match tt.as_deref()? { - &TokenTree::Token( - Token { kind: ref kind @ (token::Ident(..) | token::PathSep), span }, - _, - ) => { - // here we have either an ident or pathsep `::`. - - let mut segments = if let &token::Ident(name, _) = kind { - // when we lookahead another pathsep, more path's coming - if let Some(TokenTree::Token(Token { kind: token::PathSep, .. }, _)) = - self.inside_delimiters.peek() - { - self.inside_delimiters.next(); - vec![Ident::new(name, span)] - } else { - // else we have a single identifier path, that's all - return Some(AttrPath { - segments: vec![Ident::new(name, span)].into_boxed_slice(), - span, - }); - } - } else { - // if `::` is all we get, we just got a path root - vec![Ident::new(kw::PathRoot, span)] - }; + fn parse_unsuffixed_meta_item_lit(&mut self) -> PResult<'sess, MetaItemLit> { + let uninterpolated_span = self.parser.token_uninterpolated_span(); + let Some(token_lit) = self.parser.eat_token_lit() else { + return self.parser.handle_missing_lit(Parser::mk_meta_item_lit_char); + }; - // one segment accepted. accept n more - loop { - // another ident? - if let Some(&TokenTree::Token(Token { kind: token::Ident(name, _), span }, _)) = - self.inside_delimiters - .next() - .map(|tt| TokenTree::uninterpolate(tt)) - .as_deref() - { - segments.push(Ident::new(name, span)); - } else { - return None; - } - // stop unless we see another `::` - if let Some(TokenTree::Token(Token { kind: token::PathSep, .. }, _)) = - self.inside_delimiters.peek() - { - self.inside_delimiters.next(); - } else { - break; - } - } - let span = span.with_hi(segments.last().unwrap().span.hi()); - Some(AttrPath { segments: segments.into_boxed_slice(), span }) - } - TokenTree::Token(Token { kind, .. }, _) if kind.is_delim() => None, - _ => { - // malformed attributes can get here. We can't crash, but somewhere else should've - // already warned for this. - None + let lit = match MetaItemLit::from_token_lit(token_lit, self.parser.prev_token.span) { + Ok(lit) => lit, + Err(err) => { + let guar = + report_lit_error(&self.parser.psess, err, token_lit, uninterpolated_span); + // Pack possible quotes and prefixes from the original literal into + // the error literal's symbol so they can be pretty-printed faithfully. + let suffixless_lit = token::Lit::new(token_lit.kind, token_lit.symbol, None); + let symbol = Symbol::intern(&suffixless_lit.to_string()); + let token_lit = token::Lit::new(token::Err(guar), symbol, token_lit.suffix); + MetaItemLit::from_token_lit(token_lit, uninterpolated_span).unwrap() } + }; + + if !lit.kind.is_unsuffixed() { + // Emit error and continue, we can still parse the attribute as if the suffix isn't there + self.should_emit.emit_err( + self.parser.dcx().create_err(SuffixedLiteralInAttribute { span: lit.span }), + ); } - } - fn value(&mut self) -> Option<MetaItemLit> { - match self.inside_delimiters.next() { - Some(TokenTree::Delimited(.., Delimiter::Invisible(_), inner_tokens)) => { - MetaItemListParserContext { - inside_delimiters: inner_tokens.iter().peekable(), - dcx: self.dcx, - } - .value() - } - Some(TokenTree::Token(token, _)) => MetaItemLit::from_token(token), - _ => None, + Ok(lit) + } + + fn parse_attr_item(&mut self) -> PResult<'sess, MetaItemParser<'static>> { + if let Some(MetaVarKind::Meta { has_meta_form }) = self.parser.token.is_metavar_seq() { + return if has_meta_form { + let attr_item = self + .parser + .eat_metavar_seq(MetaVarKind::Meta { has_meta_form: true }, |this| { + MetaItemListParserContext { parser: this, should_emit: self.should_emit } + .parse_attr_item() + }) + .unwrap(); + Ok(attr_item) + } else { + self.parser.unexpected_any() + }; } + + let path = self.parser.parse_path(PathStyle::Mod)?; + + // Check style of arguments that this meta item has + let args = if self.parser.check(exp!(OpenParen)) { + let start = self.parser.token.span; + let (sub_parsers, _) = self.parser.parse_paren_comma_seq(|parser| { + MetaItemListParserContext { parser, should_emit: self.should_emit } + .parse_meta_item_inner() + })?; + let end = self.parser.prev_token.span; + ArgParser::List(MetaItemListParser { sub_parsers, span: start.with_hi(end.hi()) }) + } else if self.parser.eat(exp!(Eq)) { + let eq_span = self.parser.prev_token.span; + let value = self.parse_unsuffixed_meta_item_lit()?; + + ArgParser::NameValue(NameValueParser { eq_span, value, value_span: value.span }) + } else { + ArgParser::NoArgs + }; + + Ok(MetaItemParser { path: PathParser(Cow::Owned(path)), args }) } - /// parses one element on the inside of a list attribute like `#[my_attr( <insides> )]` - /// - /// parses a path followed be either: - /// 1. nothing (a word attr) - /// 2. a parenthesized list - /// 3. an equals sign and a literal (name-value) - /// - /// Can also parse *just* a literal. This is for cases like as `#[my_attr("literal")]` - /// where no path is given before the literal - /// - /// Some exceptions too for interpolated attributes which are already pre-processed - fn next(&mut self) -> Option<MetaItemOrLitParser<'a>> { - // a list element is either a literal - if let Some(TokenTree::Token(token, _)) = self.inside_delimiters.peek() - && let Some(lit) = MetaItemLit::from_token(token) - { - self.inside_delimiters.next(); - return Some(MetaItemOrLitParser::Lit(lit)); - } else if let Some(TokenTree::Delimited(.., Delimiter::Invisible(_), inner_tokens)) = - self.inside_delimiters.peek() + fn parse_meta_item_inner(&mut self) -> PResult<'sess, MetaItemOrLitParser<'static>> { + match self.parse_unsuffixed_meta_item_lit() { + Ok(lit) => return Ok(MetaItemOrLitParser::Lit(lit)), + Err(err) => err.cancel(), // we provide a better error below + } + + match self.parse_attr_item() { + Ok(mi) => return Ok(MetaItemOrLitParser::MetaItemParser(mi)), + Err(err) => err.cancel(), // we provide a better error below + } + + let mut err = InvalidMetaItem { + span: self.parser.token.span, + descr: token_descr(&self.parser.token), + quote_ident_sugg: None, + remove_neg_sugg: None, + }; + + // Suggest quoting idents, e.g. in `#[cfg(key = value)]`. We don't use `Token::ident` and + // don't `uninterpolate` the token to avoid suggesting anything butchered or questionable + // when macro metavariables are involved. + if self.parser.prev_token == token::Eq + && let token::Ident(..) = self.parser.token.kind { - self.inside_delimiters.next(); - return MetaItemListParserContext { - inside_delimiters: inner_tokens.iter().peekable(), - dcx: self.dcx, + let before = self.parser.token.span.shrink_to_lo(); + while let token::Ident(..) = self.parser.token.kind { + self.parser.bump(); } - .next(); + err.quote_ident_sugg = Some(InvalidMetaItemQuoteIdentSugg { + before, + after: self.parser.prev_token.span.shrink_to_hi(), + }); } - // or a path. - let path = self.next_path()?; - - // Paths can be followed by: - // - `(more meta items)` (another list) - // - `= lit` (a name-value) - // - nothing - Some(MetaItemOrLitParser::MetaItemParser(match self.inside_delimiters.peek() { - Some(TokenTree::Delimited(dspan, _, Delimiter::Parenthesis, inner_tokens)) => { - self.inside_delimiters.next(); - - MetaItemParser { - path: PathParser::Attr(path), - args: ArgParser::List(MetaItemListParser::new_tts( - inner_tokens.iter(), - dspan.entire(), - self.dcx, - )), - } - } - Some(TokenTree::Delimited(_, ..)) => { - self.inside_delimiters.next(); - // self.dcx.span_delayed_bug(span.entire(), "wrong delimiters"); - return None; - } - Some(TokenTree::Token(Token { kind: token::Eq, span }, _)) => { - self.inside_delimiters.next(); - let value = self.value()?; - MetaItemParser { - path: PathParser::Attr(path), - args: ArgParser::NameValue(NameValueParser { - eq_span: *span, - value_span: value.span, - value, - }), - } - } - _ => MetaItemParser { path: PathParser::Attr(path), args: ArgParser::NoArgs }, - })) + if self.parser.token == token::Minus + && self + .parser + .look_ahead(1, |t| matches!(t.kind, rustc_ast::token::TokenKind::Literal { .. })) + { + err.remove_neg_sugg = + Some(InvalidMetaItemRemoveNegSugg { negative_sign: self.parser.token.span }); + self.parser.bump(); + self.parser.bump(); + } + + Err(self.parser.dcx().create_err(err)) } - fn parse(mut self, span: Span) -> MetaItemListParser<'a> { - let mut sub_parsers = Vec::new(); + fn parse( + tokens: TokenStream, + psess: &'sess ParseSess, + span: Span, + should_emit: ShouldEmit, + ) -> PResult<'sess, MetaItemListParser<'static>> { + let mut parser = Parser::new(psess, tokens, None); + let mut this = MetaItemListParserContext { parser: &mut parser, should_emit }; - while !self.done() { - let Some(n) = self.next() else { - continue; - }; - sub_parsers.push(n); + // Presumably, the majority of the time there will only be one attr. + let mut sub_parsers = ThinVec::with_capacity(1); + while this.parser.token != token::Eof { + sub_parsers.push(this.parse_meta_item_inner()?); - match self.inside_delimiters.peek() { - None | Some(TokenTree::Token(Token { kind: token::Comma, .. }, _)) => { - self.inside_delimiters.next(); - } - Some(_) => {} + if !this.parser.eat(exp!(Comma)) { + break; } } - MetaItemListParser { sub_parsers, span } + if parser.token != token::Eof { + parser.unexpected()?; + } + + Ok(MetaItemListParser { sub_parsers, span }) } } #[derive(Debug, Clone)] pub struct MetaItemListParser<'a> { - sub_parsers: Vec<MetaItemOrLitParser<'a>>, + sub_parsers: ThinVec<MetaItemOrLitParser<'a>>, pub span: Span, } impl<'a> MetaItemListParser<'a> { - fn new<'sess>(delim: &'a DelimArgs, dcx: DiagCtxtHandle<'sess>) -> Self { - MetaItemListParser::new_tts(delim.tokens.iter(), delim.dspan.entire(), dcx) - } - - fn new_tts<'sess>(tts: TokenStreamIter<'a>, span: Span, dcx: DiagCtxtHandle<'sess>) -> Self { - MetaItemListParserContext { inside_delimiters: tts.peekable(), dcx }.parse(span) + fn new<'sess>( + delim: &'a DelimArgs, + psess: &'sess ParseSess, + should_emit: ShouldEmit, + ) -> Option<Self> { + match MetaItemListParserContext::parse( + delim.tokens.clone(), + psess, + delim.dspan.entire(), + should_emit, + ) { + Ok(s) => Some(s), + Err(e) => { + should_emit.emit_err(e); + None + } + } } /// Lets you pick and choose as what you want to parse each element in the list diff --git a/compiler/rustc_attr_parsing/src/session_diagnostics.rs b/compiler/rustc_attr_parsing/src/session_diagnostics.rs index c65937b35b3..72bee0ddfbf 100644 --- a/compiler/rustc_attr_parsing/src/session_diagnostics.rs +++ b/compiler/rustc_attr_parsing/src/session_diagnostics.rs @@ -1,6 +1,6 @@ use std::num::IntErrorKind; -use rustc_ast::{self as ast, AttrStyle}; +use rustc_ast::{self as ast, AttrStyle, Path}; use rustc_errors::codes::*; use rustc_errors::{ Applicability, Diag, DiagArgValue, DiagCtxtHandle, Diagnostic, EmissionGuarantee, Level, @@ -485,10 +485,12 @@ pub(crate) struct EmptyAttributeList { #[warning] #[help] pub(crate) struct InvalidTargetLint { - pub name: Symbol, + pub name: AttrPath, pub target: &'static str, - pub applied: String, + pub applied: DiagArgValue, pub only: &'static str, + #[suggestion(code = "", applicability = "machine-applicable", style = "tool-only")] + pub attr_span: Span, } #[derive(Diagnostic)] @@ -496,10 +498,11 @@ pub(crate) struct InvalidTargetLint { #[diag(attr_parsing_invalid_target)] pub(crate) struct InvalidTarget { #[primary_span] + #[suggestion(code = "", applicability = "machine-applicable", style = "tool-only")] pub span: Span, - pub name: Symbol, + pub name: AttrPath, pub target: &'static str, - pub applied: String, + pub applied: DiagArgValue, pub only: &'static str, } @@ -555,7 +558,7 @@ pub(crate) struct LinkOrdinalOutOfRange { pub ordinal: u128, } -pub(crate) enum AttributeParseErrorReason { +pub(crate) enum AttributeParseErrorReason<'a> { ExpectedNoArgs, ExpectedStringLiteral { byte_string: Option<Span>, @@ -568,7 +571,7 @@ pub(crate) enum AttributeParseErrorReason { ExpectedNameValue(Option<Symbol>), DuplicateKey(Symbol), ExpectedSpecificArgument { - possibilities: Vec<&'static str>, + possibilities: &'a [Symbol], strings: bool, /// Should we tell the user to write a list when they didn't? list: bool, @@ -576,16 +579,16 @@ pub(crate) enum AttributeParseErrorReason { ExpectedIdentifier, } -pub(crate) struct AttributeParseError { +pub(crate) struct AttributeParseError<'a> { pub(crate) span: Span, pub(crate) attr_span: Span, pub(crate) attr_style: AttrStyle, pub(crate) template: AttributeTemplate, pub(crate) attribute: AttrPath, - pub(crate) reason: AttributeParseErrorReason, + pub(crate) reason: AttributeParseErrorReason<'a>, } -impl<'a, G: EmissionGuarantee> Diagnostic<'a, G> for AttributeParseError { +impl<'a, G: EmissionGuarantee> Diagnostic<'a, G> for AttributeParseError<'_> { fn into_diag(self, dcx: DiagCtxtHandle<'a>, level: Level) -> Diag<'a, G> { let name = self.attribute.to_string(); @@ -654,7 +657,7 @@ impl<'a, G: EmissionGuarantee> Diagnostic<'a, G> for AttributeParseError { list: false, } => { let quote = if strings { '"' } else { '`' }; - match possibilities.as_slice() { + match possibilities { &[] => {} &[x] => { diag.span_label( @@ -684,7 +687,7 @@ impl<'a, G: EmissionGuarantee> Diagnostic<'a, G> for AttributeParseError { list: true, } => { let quote = if strings { '"' } else { '`' }; - match possibilities.as_slice() { + match possibilities { &[] => {} &[x] => { diag.span_label( @@ -734,3 +737,92 @@ impl<'a, G: EmissionGuarantee> Diagnostic<'a, G> for AttributeParseError { diag } } + +#[derive(Diagnostic)] +#[diag(attr_parsing_invalid_attr_unsafe)] +#[note] +pub(crate) struct InvalidAttrUnsafe { + #[primary_span] + #[label] + pub span: Span, + pub name: Path, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_unsafe_attr_outside_unsafe)] +pub(crate) struct UnsafeAttrOutsideUnsafe { + #[primary_span] + #[label] + pub span: Span, + #[subdiagnostic] + pub suggestion: UnsafeAttrOutsideUnsafeSuggestion, +} + +#[derive(Subdiagnostic)] +#[multipart_suggestion( + attr_parsing_unsafe_attr_outside_unsafe_suggestion, + applicability = "machine-applicable" +)] +pub(crate) struct UnsafeAttrOutsideUnsafeSuggestion { + #[suggestion_part(code = "unsafe(")] + pub left: Span, + #[suggestion_part(code = ")")] + pub right: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_meta_bad_delim)] +pub(crate) struct MetaBadDelim { + #[primary_span] + pub span: Span, + #[subdiagnostic] + pub sugg: MetaBadDelimSugg, +} + +#[derive(Subdiagnostic)] +#[multipart_suggestion( + attr_parsing_meta_bad_delim_suggestion, + applicability = "machine-applicable" +)] +pub(crate) struct MetaBadDelimSugg { + #[suggestion_part(code = "(")] + pub open: Span, + #[suggestion_part(code = ")")] + pub close: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_invalid_meta_item)] +pub(crate) struct InvalidMetaItem { + #[primary_span] + pub span: Span, + pub descr: String, + #[subdiagnostic] + pub quote_ident_sugg: Option<InvalidMetaItemQuoteIdentSugg>, + #[subdiagnostic] + pub remove_neg_sugg: Option<InvalidMetaItemRemoveNegSugg>, +} + +#[derive(Subdiagnostic)] +#[multipart_suggestion(attr_parsing_quote_ident_sugg, applicability = "machine-applicable")] +pub(crate) struct InvalidMetaItemQuoteIdentSugg { + #[suggestion_part(code = "\"")] + pub before: Span, + #[suggestion_part(code = "\"")] + pub after: Span, +} + +#[derive(Subdiagnostic)] +#[multipart_suggestion(attr_parsing_remove_neg_sugg, applicability = "machine-applicable")] +pub(crate) struct InvalidMetaItemRemoveNegSugg { + #[suggestion_part(code = "")] + pub negative_sign: Span, +} + +#[derive(Diagnostic)] +#[diag(attr_parsing_suffixed_literal_in_attribute)] +#[help] +pub(crate) struct SuffixedLiteralInAttribute { + #[primary_span] + pub span: Span, +} diff --git a/compiler/rustc_attr_parsing/src/target_checking.rs b/compiler/rustc_attr_parsing/src/target_checking.rs new file mode 100644 index 00000000000..9568b791b3f --- /dev/null +++ b/compiler/rustc_attr_parsing/src/target_checking.rs @@ -0,0 +1,247 @@ +use std::borrow::Cow; + +use rustc_errors::DiagArgValue; +use rustc_feature::Features; +use rustc_hir::lints::{AttributeLint, AttributeLintKind}; +use rustc_hir::{AttrPath, MethodKind, Target}; +use rustc_span::Span; + +use crate::AttributeParser; +use crate::context::Stage; +use crate::session_diagnostics::InvalidTarget; + +#[derive(Debug)] +pub(crate) enum AllowedTargets { + AllowList(&'static [Policy]), + AllowListWarnRest(&'static [Policy]), +} + +pub(crate) enum AllowedResult { + Allowed, + Warn, + Error, +} + +impl AllowedTargets { + pub(crate) fn is_allowed(&self, target: Target) -> AllowedResult { + match self { + AllowedTargets::AllowList(list) => { + if list.contains(&Policy::Allow(target)) { + AllowedResult::Allowed + } else if list.contains(&Policy::Warn(target)) { + AllowedResult::Warn + } else { + AllowedResult::Error + } + } + AllowedTargets::AllowListWarnRest(list) => { + if list.contains(&Policy::Allow(target)) { + AllowedResult::Allowed + } else if list.contains(&Policy::Error(target)) { + AllowedResult::Error + } else { + AllowedResult::Warn + } + } + } + } + + pub(crate) fn allowed_targets(&self) -> Vec<Target> { + match self { + AllowedTargets::AllowList(list) => list, + AllowedTargets::AllowListWarnRest(list) => list, + } + .iter() + .filter_map(|target| match target { + Policy::Allow(target) => Some(*target), + Policy::Warn(_) => None, + Policy::Error(_) => None, + }) + .collect() + } +} + +#[derive(Debug, Eq, PartialEq)] +pub(crate) enum Policy { + Allow(Target), + Warn(Target), + Error(Target), +} + +impl<S: Stage> AttributeParser<'_, S> { + pub(crate) fn check_target( + &self, + attr_name: AttrPath, + attr_span: Span, + allowed_targets: &AllowedTargets, + target: Target, + target_id: S::Id, + mut emit_lint: impl FnMut(AttributeLint<S::Id>), + ) { + match allowed_targets.is_allowed(target) { + AllowedResult::Allowed => {} + AllowedResult::Warn => { + let allowed_targets = allowed_targets.allowed_targets(); + let (applied, only) = + allowed_targets_applied(allowed_targets, target, self.features); + emit_lint(AttributeLint { + id: target_id, + span: attr_span, + kind: AttributeLintKind::InvalidTarget { + name: attr_name, + target, + only: if only { "only " } else { "" }, + applied, + }, + }); + } + AllowedResult::Error => { + let allowed_targets = allowed_targets.allowed_targets(); + let (applied, only) = + allowed_targets_applied(allowed_targets, target, self.features); + self.dcx().emit_err(InvalidTarget { + span: attr_span, + name: attr_name, + target: target.plural_name(), + only: if only { "only " } else { "" }, + applied: DiagArgValue::StrListSepByAnd( + applied.into_iter().map(Cow::Owned).collect(), + ), + }); + } + } + } +} + +/// Takes a list of `allowed_targets` for an attribute, and the `target` the attribute was applied to. +/// Does some heuristic-based filtering to remove uninteresting targets, and formats the targets into a string +pub(crate) fn allowed_targets_applied( + mut allowed_targets: Vec<Target>, + target: Target, + features: Option<&Features>, +) -> (Vec<String>, bool) { + // Remove unstable targets from `allowed_targets` if their features are not enabled + if let Some(features) = features { + if !features.fn_delegation() { + allowed_targets.retain(|t| !matches!(t, Target::Delegation { .. })); + } + if !features.stmt_expr_attributes() { + allowed_targets.retain(|t| !matches!(t, Target::Expression | Target::Statement)); + } + if !features.extern_types() { + allowed_targets.retain(|t| !matches!(t, Target::ForeignTy)); + } + } + + // We define groups of "similar" targets. + // If at least two of the targets are allowed, and the `target` is not in the group, + // we collapse the entire group to a single entry to simplify the target list + const FUNCTION_LIKE: &[Target] = &[ + Target::Fn, + Target::Closure, + Target::ForeignFn, + Target::Method(MethodKind::Inherent), + Target::Method(MethodKind::Trait { body: false }), + Target::Method(MethodKind::Trait { body: true }), + Target::Method(MethodKind::TraitImpl), + ]; + const METHOD_LIKE: &[Target] = &[ + Target::Method(MethodKind::Inherent), + Target::Method(MethodKind::Trait { body: false }), + Target::Method(MethodKind::Trait { body: true }), + Target::Method(MethodKind::TraitImpl), + ]; + const IMPL_LIKE: &[Target] = + &[Target::Impl { of_trait: false }, Target::Impl { of_trait: true }]; + const ADT_LIKE: &[Target] = &[Target::Struct, Target::Enum]; + + let mut added_fake_targets = Vec::new(); + filter_targets( + &mut allowed_targets, + FUNCTION_LIKE, + "functions", + target, + &mut added_fake_targets, + ); + filter_targets(&mut allowed_targets, METHOD_LIKE, "methods", target, &mut added_fake_targets); + filter_targets(&mut allowed_targets, IMPL_LIKE, "impl blocks", target, &mut added_fake_targets); + filter_targets(&mut allowed_targets, ADT_LIKE, "data types", target, &mut added_fake_targets); + + // If there is now only 1 target left, show that as the only possible target + ( + added_fake_targets + .iter() + .copied() + .chain(allowed_targets.iter().map(|t| t.plural_name())) + .map(|i| i.to_string()) + .collect(), + allowed_targets.len() + added_fake_targets.len() == 1, + ) +} + +fn filter_targets( + allowed_targets: &mut Vec<Target>, + target_group: &'static [Target], + target_group_name: &'static str, + target: Target, + added_fake_targets: &mut Vec<&'static str>, +) { + if target_group.contains(&target) { + return; + } + if allowed_targets.iter().filter(|at| target_group.contains(at)).count() < 2 { + return; + } + allowed_targets.retain(|t| !target_group.contains(t)); + added_fake_targets.push(target_group_name); +} + +/// This is the list of all targets to which a attribute can be applied +/// This is used for: +/// - `rustc_dummy`, which can be applied to all targets +/// - Attributes that are not parted to the new target system yet can use this list as a placeholder +pub(crate) const ALL_TARGETS: &'static [Policy] = { + use Policy::Allow; + &[ + Allow(Target::ExternCrate), + Allow(Target::Use), + Allow(Target::Static), + Allow(Target::Const), + Allow(Target::Fn), + Allow(Target::Closure), + Allow(Target::Mod), + Allow(Target::ForeignMod), + Allow(Target::GlobalAsm), + Allow(Target::TyAlias), + Allow(Target::Enum), + Allow(Target::Variant), + Allow(Target::Struct), + Allow(Target::Field), + Allow(Target::Union), + Allow(Target::Trait), + Allow(Target::TraitAlias), + Allow(Target::Impl { of_trait: false }), + Allow(Target::Impl { of_trait: true }), + Allow(Target::Expression), + Allow(Target::Statement), + Allow(Target::Arm), + Allow(Target::AssocConst), + Allow(Target::Method(MethodKind::Inherent)), + Allow(Target::Method(MethodKind::Trait { body: false })), + Allow(Target::Method(MethodKind::Trait { body: true })), + Allow(Target::Method(MethodKind::TraitImpl)), + Allow(Target::AssocTy), + Allow(Target::ForeignFn), + Allow(Target::ForeignStatic), + Allow(Target::ForeignTy), + Allow(Target::MacroDef), + Allow(Target::Param), + Allow(Target::PatField), + Allow(Target::ExprField), + Allow(Target::WherePredicate), + Allow(Target::MacroCall), + Allow(Target::Crate), + Allow(Target::Delegation { mac: false }), + Allow(Target::Delegation { mac: true }), + ] +}; diff --git a/compiler/rustc_parse/src/validate_attr.rs b/compiler/rustc_attr_parsing/src/validate_attr.rs index 68ef6d6f32c..7a7624893bd 100644 --- a/compiler/rustc_parse/src/validate_attr.rs +++ b/compiler/rustc_attr_parsing/src/validate_attr.rs @@ -8,16 +8,16 @@ use rustc_ast::{ self as ast, AttrArgs, Attribute, DelimArgs, MetaItem, MetaItemInner, MetaItemKind, NodeId, Path, Safety, }; -use rustc_attr_parsing::{AttributeParser, Late}; use rustc_errors::{Applicability, DiagCtxtHandle, FatalError, PResult}; use rustc_feature::{AttributeSafety, AttributeTemplate, BUILTIN_ATTRIBUTE_MAP, BuiltinAttribute}; +use rustc_parse::parse_in; use rustc_session::errors::report_lit_error; use rustc_session::lint::BuiltinLintDiag; use rustc_session::lint::builtin::{ILL_FORMED_ATTRIBUTE_INPUT, UNSAFE_ATTR_OUTSIDE_UNSAFE}; use rustc_session::parse::ParseSess; use rustc_span::{Span, Symbol, sym}; -use crate::{errors, parse_in}; +use crate::{AttributeParser, Late, session_diagnostics as errors}; pub fn check_attr(psess: &ParseSess, attr: &Attribute, id: NodeId) { if attr.is_doc_comment() || attr.has_name(sym::cfg_trace) || attr.has_name(sym::cfg_attr_trace) @@ -33,7 +33,10 @@ pub fn check_attr(psess: &ParseSess, attr: &Attribute, id: NodeId) { // Check input tokens for built-in and key-value attributes. match builtin_attr_info { // `rustc_dummy` doesn't have any restrictions specific to built-in attributes. - Some(BuiltinAttribute { name, template, .. }) if *name != sym::rustc_dummy => { + Some(BuiltinAttribute { name, template, .. }) => { + if AttributeParser::<Late>::is_parsed_attribute(slice::from_ref(&name)) { + return; + } match parse_meta(psess, attr) { // Don't check safety again, we just did that Ok(meta) => { @@ -133,16 +136,6 @@ fn check_meta_bad_delim(psess: &ParseSess, span: DelimSpan, delim: Delimiter) { }); } -pub(super) fn check_cfg_attr_bad_delim(psess: &ParseSess, span: DelimSpan, delim: Delimiter) { - if let Delimiter::Parenthesis = delim { - return; - } - psess.dcx().emit_err(errors::CfgAttrBadDelim { - span: span.entire(), - sugg: errors::MetaBadDelimSugg { open: span.open, close: span.close }, - }); -} - /// Checks that the given meta-item is compatible with this `AttributeTemplate`. fn is_attr_template_compatible(template: &AttributeTemplate, meta: &ast::MetaItemKind) -> bool { let is_one_allowed_subword = |items: &[MetaItemInner]| match items { @@ -269,9 +262,6 @@ pub fn check_builtin_meta_item( ) { if !is_attr_template_compatible(&template, &meta.kind) { // attrs with new parsers are locally validated so excluded here - if AttributeParser::<Late>::is_parsed_attribute(slice::from_ref(&name)) { - return; - } emit_malformed_attribute(psess, style, meta.span, name, template); } diff --git a/compiler/rustc_borrowck/src/dataflow.rs b/compiler/rustc_borrowck/src/dataflow.rs index 57db2e9fb57..d3f6c01ab8c 100644 --- a/compiler/rustc_borrowck/src/dataflow.rs +++ b/compiler/rustc_borrowck/src/dataflow.rs @@ -1,7 +1,6 @@ use std::fmt; use rustc_data_structures::fx::FxIndexMap; -use rustc_data_structures::graph; use rustc_index::bit_set::{DenseBitSet, MixedBitSet}; use rustc_middle::mir::{ self, BasicBlock, Body, CallReturnPlaces, Location, Place, TerminatorEdges, @@ -317,9 +316,8 @@ impl<'tcx> PoloniusOutOfScopePrecomputer<'_, 'tcx> { loans_out_of_scope_at_location: FxIndexMap::default(), }; for (loan_idx, loan_data) in borrow_set.iter_enumerated() { - let issuing_region = loan_data.region; let loan_issued_at = loan_data.reserve_location; - prec.precompute_loans_out_of_scope(loan_idx, issuing_region, loan_issued_at); + prec.precompute_loans_out_of_scope(loan_idx, loan_issued_at); } prec.loans_out_of_scope_at_location @@ -328,45 +326,7 @@ impl<'tcx> PoloniusOutOfScopePrecomputer<'_, 'tcx> { /// Loans are in scope while they are live: whether they are contained within any live region. /// In the location-insensitive analysis, a loan will be contained in a region if the issuing /// region can reach it in the subset graph. So this is a reachability problem. - fn precompute_loans_out_of_scope( - &mut self, - loan_idx: BorrowIndex, - issuing_region: RegionVid, - loan_issued_at: Location, - ) { - let sccs = self.regioncx.constraint_sccs(); - let universal_regions = self.regioncx.universal_regions(); - - // The loop below was useful for the location-insensitive analysis but shouldn't be - // impactful in the location-sensitive case. It seems that it does, however, as without it a - // handful of tests fail. That likely means some liveness or outlives data related to choice - // regions is missing - // FIXME: investigate the impact of loans traversing applied member constraints and why some - // tests fail otherwise. - // - // We first handle the cases where the loan doesn't go out of scope, depending on the - // issuing region's successors. - for successor in graph::depth_first_search(&self.regioncx.region_graph(), issuing_region) { - // Via applied member constraints - // - // The issuing region can flow into the choice regions, and they are either: - // - placeholders or free regions themselves, - // - or also transitively outlive a free region. - // - // That is to say, if there are applied member constraints here, the loan escapes the - // function and cannot go out of scope. We could early return here. - // - // For additional insurance via fuzzing and crater, we verify that the constraint's min - // choice indeed escapes the function. In the future, we could e.g. turn this check into - // a debug assert and early return as an optimization. - let scc = sccs.scc(successor); - for constraint in self.regioncx.applied_member_constraints(scc) { - if universal_regions.is_universal_region(constraint.min_choice) { - return; - } - } - } - + fn precompute_loans_out_of_scope(&mut self, loan_idx: BorrowIndex, loan_issued_at: Location) { let first_block = loan_issued_at.block; let first_bb_data = &self.body.basic_blocks[first_block]; diff --git a/compiler/rustc_borrowck/src/diagnostics/opaque_types.rs b/compiler/rustc_borrowck/src/diagnostics/opaque_types.rs index 83fe4a9f98f..f77f759035b 100644 --- a/compiler/rustc_borrowck/src/diagnostics/opaque_types.rs +++ b/compiler/rustc_borrowck/src/diagnostics/opaque_types.rs @@ -13,6 +13,8 @@ use rustc_middle::mir::{self, ConstraintCategory, Location}; use rustc_middle::ty::{ self, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, TypeVisitableExt, TypeVisitor, }; +use rustc_span::Span; +use rustc_trait_selection::error_reporting::infer::region::unexpected_hidden_region_diagnostic; use rustc_trait_selection::errors::impl_trait_overcapture_suggestion; use crate::MirBorrowckCtxt; @@ -26,13 +28,61 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { if errors.is_empty() { return; } + + let infcx = self.infcx; let mut guar = None; + let mut last_unexpected_hidden_region: Option<(Span, Ty<'_>, ty::OpaqueTypeKey<'tcx>)> = + None; for error in errors { guar = Some(match error { - DeferredOpaqueTypeError::InvalidOpaqueTypeArgs(err) => err.report(self.infcx), + DeferredOpaqueTypeError::InvalidOpaqueTypeArgs(err) => err.report(infcx), DeferredOpaqueTypeError::LifetimeMismatchOpaqueParam(err) => { - self.infcx.dcx().emit_err(err) + infcx.dcx().emit_err(err) + } + DeferredOpaqueTypeError::UnexpectedHiddenRegion { + opaque_type_key, + hidden_type, + member_region, + } => { + let named_ty = + self.regioncx.name_regions_for_member_constraint(infcx.tcx, hidden_type.ty); + let named_key = self + .regioncx + .name_regions_for_member_constraint(infcx.tcx, opaque_type_key); + let named_region = + self.regioncx.name_regions_for_member_constraint(infcx.tcx, member_region); + let diag = unexpected_hidden_region_diagnostic( + infcx, + self.mir_def_id(), + hidden_type.span, + named_ty, + named_region, + named_key, + ); + if last_unexpected_hidden_region + != Some((hidden_type.span, named_ty, named_key)) + { + last_unexpected_hidden_region = + Some((hidden_type.span, named_ty, named_key)); + diag.emit() + } else { + diag.delay_as_bug() + } } + DeferredOpaqueTypeError::NonDefiningUseInDefiningScope { + span, + opaque_type_key, + } => infcx.dcx().span_err( + span, + format!( + "non-defining use of `{}` in the defining scope", + Ty::new_opaque( + infcx.tcx, + opaque_type_key.def_id.to_def_id(), + opaque_type_key.args + ) + ), + ), }); } let guar = guar.unwrap(); @@ -194,7 +244,7 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for FindOpaqueRegion<'_, 'tcx> { // Find a path between the borrow region and our opaque capture. if let Some((path, _)) = - self.regioncx.find_constraint_paths_between_regions(self.borrow_region, |r| { + self.regioncx.find_constraint_path_between_regions(self.borrow_region, |r| { r == opaque_region_vid }) { diff --git a/compiler/rustc_borrowck/src/diagnostics/region_errors.rs b/compiler/rustc_borrowck/src/diagnostics/region_errors.rs index fe4e1b6011e..c7d2267e5f7 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_errors.rs @@ -23,7 +23,6 @@ use rustc_trait_selection::error_reporting::infer::nice_region_error::{ self, HirTraitObjectVisitor, NiceRegionError, TraitObjectVisitor, find_anon_type, find_param_with_region, suggest_adding_lifetime_params, }; -use rustc_trait_selection::error_reporting::infer::region::unexpected_hidden_region_diagnostic; use rustc_trait_selection::infer::InferCtxtExt; use rustc_trait_selection::traits::{Obligation, ObligationCtxt}; use tracing::{debug, instrument, trace}; @@ -105,18 +104,6 @@ pub(crate) enum RegionErrorKind<'tcx> { /// A generic bound failure for a type test (`T: 'a`). TypeTestError { type_test: TypeTest<'tcx> }, - /// An unexpected hidden region for an opaque type. - UnexpectedHiddenRegion { - /// The span for the member constraint. - span: Span, - /// The hidden type. - hidden_ty: Ty<'tcx>, - /// The opaque type. - key: ty::OpaqueTypeKey<'tcx>, - /// The unexpected region. - member_region: ty::Region<'tcx>, - }, - /// Higher-ranked subtyping error. BoundUniversalRegionError { /// The placeholder free region. @@ -323,11 +310,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { pub(crate) fn report_region_errors(&mut self, nll_errors: RegionErrors<'tcx>) { // Iterate through all the errors, producing a diagnostic for each one. The diagnostics are // buffered in the `MirBorrowckCtxt`. - let mut outlives_suggestion = OutlivesSuggestionBuilder::default(); - let mut last_unexpected_hidden_region: Option<(Span, Ty<'_>, ty::OpaqueTypeKey<'tcx>)> = - None; - for (nll_error, _) in nll_errors.into_iter() { match nll_error { RegionErrorKind::TypeTestError { type_test } => { @@ -378,30 +361,6 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { } } - RegionErrorKind::UnexpectedHiddenRegion { span, hidden_ty, key, member_region } => { - let named_ty = - self.regioncx.name_regions_for_member_constraint(self.infcx.tcx, hidden_ty); - let named_key = - self.regioncx.name_regions_for_member_constraint(self.infcx.tcx, key); - let named_region = self - .regioncx - .name_regions_for_member_constraint(self.infcx.tcx, member_region); - let diag = unexpected_hidden_region_diagnostic( - self.infcx, - self.mir_def_id(), - span, - named_ty, - named_region, - named_key, - ); - if last_unexpected_hidden_region != Some((span, named_ty, named_key)) { - self.buffer_error(diag); - last_unexpected_hidden_region = Some((span, named_ty, named_key)); - } else { - diag.delay_as_bug(); - } - } - RegionErrorKind::BoundUniversalRegionError { longer_fr, placeholder, diff --git a/compiler/rustc_borrowck/src/handle_placeholders.rs b/compiler/rustc_borrowck/src/handle_placeholders.rs index 1614c112ab5..4661906fbeb 100644 --- a/compiler/rustc_borrowck/src/handle_placeholders.rs +++ b/compiler/rustc_borrowck/src/handle_placeholders.rs @@ -15,7 +15,6 @@ use tracing::debug; use crate::constraints::{ConstraintSccIndex, OutlivesConstraintSet}; use crate::consumers::OutlivesConstraint; use crate::diagnostics::UniverseInfo; -use crate::member_constraints::MemberConstraintSet; use crate::region_infer::values::{LivenessValues, PlaceholderIndices}; use crate::region_infer::{ConstraintSccs, RegionDefinition, Representative, TypeTest}; use crate::ty::VarianceDiagInfo; @@ -30,7 +29,6 @@ pub(crate) struct LoweredConstraints<'tcx> { pub(crate) constraint_sccs: Sccs<RegionVid, ConstraintSccIndex>, pub(crate) definitions: Frozen<IndexVec<RegionVid, RegionDefinition<'tcx>>>, pub(crate) scc_annotations: IndexVec<ConstraintSccIndex, RegionTracker>, - pub(crate) member_constraints: MemberConstraintSet<'tcx, RegionVid>, pub(crate) outlives_constraints: Frozen<OutlivesConstraintSet<'tcx>>, pub(crate) type_tests: Vec<TypeTest<'tcx>>, pub(crate) liveness_constraints: LivenessValues, @@ -147,9 +145,10 @@ impl scc::Annotation for RegionTracker { /// Determines if the region variable definitions contain /// placeholders, and compute them for later use. -fn region_definitions<'tcx>( - universal_regions: &UniversalRegions<'tcx>, +// FIXME: This is also used by opaque type handling. Move it to a separate file. +pub(super) fn region_definitions<'tcx>( infcx: &BorrowckInferCtxt<'tcx>, + universal_regions: &UniversalRegions<'tcx>, ) -> (Frozen<IndexVec<RegionVid, RegionDefinition<'tcx>>>, bool) { let var_infos = infcx.get_region_var_infos(); // Create a RegionDefinition for each inference variable. This happens here because @@ -213,14 +212,13 @@ pub(crate) fn compute_sccs_applying_placeholder_outlives_constraints<'tcx>( infcx: &BorrowckInferCtxt<'tcx>, ) -> LoweredConstraints<'tcx> { let universal_regions = &universal_region_relations.universal_regions; - let (definitions, has_placeholders) = region_definitions(universal_regions, infcx); + let (definitions, has_placeholders) = region_definitions(infcx, universal_regions); let MirTypeckRegionConstraints { placeholder_indices, placeholder_index_to_region: _, liveness_constraints, mut outlives_constraints, - member_constraints, universe_causes, type_tests, } = constraints; @@ -246,7 +244,6 @@ pub(crate) fn compute_sccs_applying_placeholder_outlives_constraints<'tcx>( return LoweredConstraints { type_tests, - member_constraints, constraint_sccs, scc_annotations: scc_annotations.scc_to_annotation, definitions, @@ -283,7 +280,6 @@ pub(crate) fn compute_sccs_applying_placeholder_outlives_constraints<'tcx>( constraint_sccs, definitions, scc_annotations, - member_constraints, outlives_constraints: Frozen::freeze(outlives_constraints), type_tests, liveness_constraints, diff --git a/compiler/rustc_borrowck/src/lib.rs b/compiler/rustc_borrowck/src/lib.rs index d76d6a04e6e..ce78ae203a4 100644 --- a/compiler/rustc_borrowck/src/lib.rs +++ b/compiler/rustc_borrowck/src/lib.rs @@ -78,7 +78,6 @@ mod dataflow; mod def_use; mod diagnostics; mod handle_placeholders; -mod member_constraints; mod nll; mod path_utils; mod place_ext; @@ -301,7 +300,7 @@ fn do_mir_borrowck<'tcx>( def: LocalDefId, ) -> PropagatedBorrowCheckResults<'tcx> { let tcx = root_cx.tcx; - let infcx = BorrowckInferCtxt::new(tcx, def); + let infcx = BorrowckInferCtxt::new(tcx, def, root_cx.root_def_id()); let (input_body, promoted) = tcx.mir_promoted(def); let input_body: &Body<'_> = &input_body.borrow(); let input_promoted: &IndexSlice<_, _> = &promoted.borrow(); @@ -335,9 +334,10 @@ fn do_mir_borrowck<'tcx>( // Run the MIR type-checker. let MirTypeckResults { - constraints, + mut constraints, universal_region_relations, - opaque_type_values, + region_bound_pairs, + known_type_outlives_obligations, polonius_context, } = type_check::type_check( root_cx, @@ -352,6 +352,17 @@ fn do_mir_borrowck<'tcx>( Rc::clone(&location_map), ); + let opaque_type_errors = region_infer::opaque_types::handle_opaque_type_uses( + root_cx, + &infcx, + &body, + &universal_region_relations, + ®ion_bound_pairs, + &known_type_outlives_obligations, + &location_map, + &mut constraints, + ); + // Compute non-lexical lifetimes using the constraints computed // by typechecking the MIR body. let nll::NllOutput { @@ -375,8 +386,6 @@ fn do_mir_borrowck<'tcx>( polonius_context, ); - let opaque_type_errors = regioncx.infer_opaque_types(root_cx, &infcx, opaque_type_values); - // Dump MIR results into a file, if that is enabled. This lets us // write unit-tests, as well as helping with debugging. nll::dump_nll_mir(&infcx, body, ®ioncx, &opt_closure_req, &borrow_set); @@ -581,12 +590,13 @@ fn get_flow_results<'a, 'tcx>( pub(crate) struct BorrowckInferCtxt<'tcx> { pub(crate) infcx: InferCtxt<'tcx>, - pub(crate) reg_var_to_origin: RefCell<FxIndexMap<ty::RegionVid, RegionCtxt>>, + pub(crate) root_def_id: LocalDefId, pub(crate) param_env: ParamEnv<'tcx>, + pub(crate) reg_var_to_origin: RefCell<FxIndexMap<ty::RegionVid, RegionCtxt>>, } impl<'tcx> BorrowckInferCtxt<'tcx> { - pub(crate) fn new(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> Self { + pub(crate) fn new(tcx: TyCtxt<'tcx>, def_id: LocalDefId, root_def_id: LocalDefId) -> Self { let typing_mode = if tcx.use_typing_mode_borrowck() { TypingMode::borrowck(tcx, def_id) } else { @@ -594,7 +604,12 @@ impl<'tcx> BorrowckInferCtxt<'tcx> { }; let infcx = tcx.infer_ctxt().build(typing_mode); let param_env = tcx.param_env(def_id); - BorrowckInferCtxt { infcx, reg_var_to_origin: RefCell::new(Default::default()), param_env } + BorrowckInferCtxt { + infcx, + root_def_id, + reg_var_to_origin: RefCell::new(Default::default()), + param_env, + } } pub(crate) fn next_region_var<F>( diff --git a/compiler/rustc_borrowck/src/member_constraints.rs b/compiler/rustc_borrowck/src/member_constraints.rs deleted file mode 100644 index bdd0f6fe11e..00000000000 --- a/compiler/rustc_borrowck/src/member_constraints.rs +++ /dev/null @@ -1,226 +0,0 @@ -use std::hash::Hash; -use std::ops::Index; - -use rustc_data_structures::fx::FxIndexMap; -use rustc_index::{IndexSlice, IndexVec}; -use rustc_middle::ty::{self, Ty}; -use rustc_span::Span; -use tracing::instrument; - -/// Compactly stores a set of `R0 member of [R1...Rn]` constraints, -/// indexed by the region `R0`. -#[derive(Debug)] -pub(crate) struct MemberConstraintSet<'tcx, R> -where - R: Copy + Eq, -{ - /// Stores the first "member" constraint for a given `R0`. This is an - /// index into the `constraints` vector below. - first_constraints: FxIndexMap<R, NllMemberConstraintIndex>, - - /// Stores the data about each `R0 member of [R1..Rn]` constraint. - /// These are organized into a linked list, so each constraint - /// contains the index of the next constraint with the same `R0`. - constraints: IndexVec<NllMemberConstraintIndex, MemberConstraint<'tcx>>, - - /// Stores the `R1..Rn` regions for *all* sets. For any given - /// constraint, we keep two indices so that we can pull out a - /// slice. - choice_regions: Vec<ty::RegionVid>, -} - -/// Represents a `R0 member of [R1..Rn]` constraint -#[derive(Debug)] -pub(crate) struct MemberConstraint<'tcx> { - next_constraint: Option<NllMemberConstraintIndex>, - - /// The span where the hidden type was instantiated. - pub(crate) definition_span: Span, - - /// The hidden type in which `R0` appears. (Used in error reporting.) - pub(crate) hidden_ty: Ty<'tcx>, - - pub(crate) key: ty::OpaqueTypeKey<'tcx>, - - /// The region `R0`. - pub(crate) member_region_vid: ty::RegionVid, - - /// Index of `R1` in `choice_regions` vector from `MemberConstraintSet`. - start_index: usize, - - /// Index of `Rn` in `choice_regions` vector from `MemberConstraintSet`. - end_index: usize, -} - -rustc_index::newtype_index! { - #[debug_format = "MemberConstraintIndex({})"] - pub(crate) struct NllMemberConstraintIndex {} -} - -impl Default for MemberConstraintSet<'_, ty::RegionVid> { - fn default() -> Self { - Self { - first_constraints: Default::default(), - constraints: Default::default(), - choice_regions: Default::default(), - } - } -} - -impl<'tcx> MemberConstraintSet<'tcx, ty::RegionVid> { - pub(crate) fn is_empty(&self) -> bool { - self.constraints.is_empty() - } - - /// Pushes a member constraint into the set. - #[instrument(level = "debug", skip(self))] - pub(crate) fn add_member_constraint( - &mut self, - key: ty::OpaqueTypeKey<'tcx>, - hidden_ty: Ty<'tcx>, - definition_span: Span, - member_region_vid: ty::RegionVid, - choice_regions: &[ty::RegionVid], - ) { - let next_constraint = self.first_constraints.get(&member_region_vid).cloned(); - let start_index = self.choice_regions.len(); - self.choice_regions.extend(choice_regions); - let end_index = self.choice_regions.len(); - let constraint_index = self.constraints.push(MemberConstraint { - next_constraint, - member_region_vid, - definition_span, - hidden_ty, - key, - start_index, - end_index, - }); - self.first_constraints.insert(member_region_vid, constraint_index); - } -} - -impl<'tcx, R1> MemberConstraintSet<'tcx, R1> -where - R1: Copy + Hash + Eq, -{ - /// Remap the "member region" key using `map_fn`, producing a new - /// member constraint set. This is used in the NLL code to map from - /// the original `RegionVid` to an scc index. In some cases, we - /// may have multiple `R1` values mapping to the same `R2` key -- that - /// is ok, the two sets will be merged. - pub(crate) fn into_mapped<R2>( - self, - mut map_fn: impl FnMut(R1) -> R2, - ) -> MemberConstraintSet<'tcx, R2> - where - R2: Copy + Hash + Eq, - { - // We can re-use most of the original data, just tweaking the - // linked list links a bit. - // - // For example if we had two keys `Ra` and `Rb` that both now - // wind up mapped to the same key `S`, we would append the - // linked list for `Ra` onto the end of the linked list for - // `Rb` (or vice versa) -- this basically just requires - // rewriting the final link from one list to point at the other - // other (see `append_list`). - - let MemberConstraintSet { first_constraints, mut constraints, choice_regions } = self; - - let mut first_constraints2 = FxIndexMap::default(); - first_constraints2.reserve(first_constraints.len()); - - for (r1, start1) in first_constraints { - let r2 = map_fn(r1); - if let Some(&start2) = first_constraints2.get(&r2) { - append_list(&mut constraints, start1, start2); - } - first_constraints2.insert(r2, start1); - } - - MemberConstraintSet { first_constraints: first_constraints2, constraints, choice_regions } - } -} - -impl<'tcx, R> MemberConstraintSet<'tcx, R> -where - R: Copy + Hash + Eq, -{ - pub(crate) fn all_indices(&self) -> impl Iterator<Item = NllMemberConstraintIndex> { - self.constraints.indices() - } - - /// Iterate down the constraint indices associated with a given - /// peek-region. You can then use `choice_regions` and other - /// methods to access data. - pub(crate) fn indices( - &self, - member_region_vid: R, - ) -> impl Iterator<Item = NllMemberConstraintIndex> { - let mut next = self.first_constraints.get(&member_region_vid).cloned(); - std::iter::from_fn(move || -> Option<NllMemberConstraintIndex> { - if let Some(current) = next { - next = self.constraints[current].next_constraint; - Some(current) - } else { - None - } - }) - } - - /// Returns the "choice regions" for a given member - /// constraint. This is the `R1..Rn` from a constraint like: - /// - /// ```text - /// R0 member of [R1..Rn] - /// ``` - pub(crate) fn choice_regions(&self, pci: NllMemberConstraintIndex) -> &[ty::RegionVid] { - let MemberConstraint { start_index, end_index, .. } = &self.constraints[pci]; - &self.choice_regions[*start_index..*end_index] - } -} - -impl<'tcx, R> Index<NllMemberConstraintIndex> for MemberConstraintSet<'tcx, R> -where - R: Copy + Eq, -{ - type Output = MemberConstraint<'tcx>; - - fn index(&self, i: NllMemberConstraintIndex) -> &MemberConstraint<'tcx> { - &self.constraints[i] - } -} - -/// Given a linked list starting at `source_list` and another linked -/// list starting at `target_list`, modify `target_list` so that it is -/// followed by `source_list`. -/// -/// Before: -/// -/// ```text -/// target_list: A -> B -> C -> (None) -/// source_list: D -> E -> F -> (None) -/// ``` -/// -/// After: -/// -/// ```text -/// target_list: A -> B -> C -> D -> E -> F -> (None) -/// ``` -fn append_list( - constraints: &mut IndexSlice<NllMemberConstraintIndex, MemberConstraint<'_>>, - target_list: NllMemberConstraintIndex, - source_list: NllMemberConstraintIndex, -) { - let mut p = target_list; - loop { - let r = &mut constraints[p]; - match r.next_constraint { - Some(q) => p = q, - None => { - r.next_constraint = Some(source_list); - return; - } - } - } -} diff --git a/compiler/rustc_borrowck/src/region_infer/mod.rs b/compiler/rustc_borrowck/src/region_infer/mod.rs index c76c5c17431..3d95eb4663a 100644 --- a/compiler/rustc_borrowck/src/region_infer/mod.rs +++ b/compiler/rustc_borrowck/src/region_infer/mod.rs @@ -1,8 +1,6 @@ -use std::cell::OnceCell; use std::collections::VecDeque; use std::rc::Rc; -use rustc_data_structures::binary_search_util; use rustc_data_structures::frozen::Frozen; use rustc_data_structures::fx::{FxIndexMap, FxIndexSet}; use rustc_data_structures::graph::scc::{self, Sccs}; @@ -24,15 +22,13 @@ use rustc_span::hygiene::DesugaringKind; use rustc_span::{DUMMY_SP, Span}; use tracing::{Level, debug, enabled, instrument, trace}; -use crate::constraints::graph::{self, NormalConstraintGraph, RegionGraph}; +use crate::constraints::graph::NormalConstraintGraph; use crate::constraints::{ConstraintSccIndex, OutlivesConstraint, OutlivesConstraintSet}; use crate::dataflow::BorrowIndex; use crate::diagnostics::{RegionErrorKind, RegionErrors, UniverseInfo}; use crate::handle_placeholders::{LoweredConstraints, RegionTracker}; -use crate::member_constraints::{MemberConstraintSet, NllMemberConstraintIndex}; use crate::polonius::LiveLoans; use crate::polonius::legacy::PoloniusOutput; -use crate::region_infer::reverse_sccs::ReverseSccGraph; use crate::region_infer::values::{LivenessValues, RegionElement, RegionValues, ToElementIndex}; use crate::type_check::Locations; use crate::type_check::free_region_relations::UniversalRegionRelations; @@ -120,20 +116,6 @@ pub struct RegionInferenceContext<'tcx> { scc_annotations: IndexVec<ConstraintSccIndex, RegionTracker>, - /// Reverse of the SCC constraint graph -- i.e., an edge `A -> B` exists if - /// `B: A`. This is used to compute the universal regions that are required - /// to outlive a given SCC. - rev_scc_graph: OnceCell<ReverseSccGraph>, - - /// The "R0 member of [R1..Rn]" constraints, indexed by SCC. - member_constraints: Rc<MemberConstraintSet<'tcx, ConstraintSccIndex>>, - - /// Records the member constraints that we applied to each scc. - /// This is useful for error reporting. Once constraint - /// propagation is done, this vector is sorted according to - /// `member_region_scc`. - member_constraints_applied: Vec<AppliedMemberConstraint>, - /// Map universe indexes to information on why we created it. universe_causes: FxIndexMap<ty::UniverseIndex, UniverseInfo<'tcx>>, @@ -150,32 +132,6 @@ pub struct RegionInferenceContext<'tcx> { universal_region_relations: Frozen<UniversalRegionRelations<'tcx>>, } -/// Each time that `apply_member_constraint` is successful, it appends -/// one of these structs to the `member_constraints_applied` field. -/// This is used in error reporting to trace out what happened. -/// -/// The way that `apply_member_constraint` works is that it effectively -/// adds a new lower bound to the SCC it is analyzing: so you wind up -/// with `'R: 'O` where `'R` is the pick-region and `'O` is the -/// minimal viable option. -#[derive(Debug)] -pub(crate) struct AppliedMemberConstraint { - /// The SCC that was affected. (The "member region".) - /// - /// The vector if `AppliedMemberConstraint` elements is kept sorted - /// by this field. - pub(crate) member_region_scc: ConstraintSccIndex, - - /// The "best option" that `apply_member_constraint` found -- this was - /// added as an "ad-hoc" lower-bound to `member_region_scc`. - pub(crate) min_choice: ty::RegionVid, - - /// The "member constraint index" -- we can find out details about - /// the constraint from - /// `set.member_constraints[member_constraint_index]`. - pub(crate) member_constraint_index: NllMemberConstraintIndex, -} - #[derive(Debug)] pub(crate) struct RegionDefinition<'tcx> { /// What kind of variable is this -- a free region? existential @@ -268,7 +224,6 @@ enum Trace<'a, 'tcx> { StartRegion, FromGraph(&'a OutlivesConstraint<'tcx>), FromStatic(RegionVid), - FromMember(RegionVid, RegionVid, Span), NotVisited, } @@ -363,7 +318,6 @@ impl<'tcx> RegionInferenceContext<'tcx> { liveness_constraints, universe_causes, placeholder_indices, - member_constraints, } = lowered_constraints; debug!("universal_regions: {:#?}", universal_region_relations.universal_regions); @@ -385,9 +339,6 @@ impl<'tcx> RegionInferenceContext<'tcx> { scc_values.merge_liveness(scc, region, &liveness_constraints); } - let member_constraints = - Rc::new(member_constraints.into_mapped(|r| constraint_sccs.scc(r))); - let mut result = Self { definitions, liveness_constraints, @@ -395,9 +346,6 @@ impl<'tcx> RegionInferenceContext<'tcx> { constraint_graph, constraint_sccs, scc_annotations, - rev_scc_graph: OnceCell::new(), - member_constraints, - member_constraints_applied: Vec::new(), universe_causes, scc_values, type_tests, @@ -550,19 +498,6 @@ impl<'tcx> RegionInferenceContext<'tcx> { self.scc_values.placeholders_contained_in(scc) } - /// Once region solving has completed, this function will return the member constraints that - /// were applied to the value of a given SCC `scc`. See `AppliedMemberConstraint`. - pub(crate) fn applied_member_constraints( - &self, - scc: ConstraintSccIndex, - ) -> &[AppliedMemberConstraint] { - binary_search_util::binary_search_slice( - &self.member_constraints_applied, - |applied| applied.member_region_scc, - &scc, - ) - } - /// Performs region inference and report errors if we see any /// unsatisfiable constraints. If this is a closure, returns the /// region requirements to propagate to our creator, if any. @@ -607,12 +542,6 @@ impl<'tcx> RegionInferenceContext<'tcx> { debug!(?errors_buffer); - if errors_buffer.is_empty() { - self.check_member_constraints(infcx, &mut errors_buffer); - } - - debug!(?errors_buffer); - let outlives_requirements = outlives_requirements.unwrap_or_default(); if outlives_requirements.is_empty() { @@ -642,146 +571,15 @@ impl<'tcx> RegionInferenceContext<'tcx> { }); // To propagate constraints, we walk the DAG induced by the - // SCC. For each SCC, we visit its successors and compute + // SCC. For each SCC `A`, we visit its successors and compute // their values, then we union all those values to get our // own. - for scc in self.constraint_sccs.all_sccs() { - self.compute_value_for_scc(scc); - } - - // Sort the applied member constraints so we can binary search - // through them later. - self.member_constraints_applied.sort_by_key(|applied| applied.member_region_scc); - } - - /// Computes the value of the SCC `scc_a`, which has not yet been - /// computed, by unioning the values of its successors. - /// Assumes that all successors have been computed already - /// (which is assured by iterating over SCCs in dependency order). - #[instrument(skip(self), level = "debug")] - fn compute_value_for_scc(&mut self, scc_a: ConstraintSccIndex) { - // Walk each SCC `B` such that `A: B`... - for &scc_b in self.constraint_sccs.successors(scc_a) { - debug!(?scc_b); - self.scc_values.add_region(scc_a, scc_b); - } - - // Now take member constraints into account. - let member_constraints = Rc::clone(&self.member_constraints); - for m_c_i in member_constraints.indices(scc_a) { - self.apply_member_constraint(scc_a, m_c_i, member_constraints.choice_regions(m_c_i)); - } - - debug!(value = ?self.scc_values.region_value_str(scc_a)); - } - - /// Invoked for each `R0 member of [R1..Rn]` constraint. - /// - /// `scc` is the SCC containing R0, and `choice_regions` are the - /// `R1..Rn` regions -- they are always known to be universal - /// regions (and if that's not true, we just don't attempt to - /// enforce the constraint). - /// - /// The current value of `scc` at the time the method is invoked - /// is considered a *lower bound*. If possible, we will modify - /// the constraint to set it equal to one of the option regions. - /// If we make any changes, returns true, else false. - /// - /// This function only adds the member constraints to the region graph, - /// it does not check them. They are later checked in - /// `check_member_constraints` after the region graph has been computed. - #[instrument(skip(self, member_constraint_index), level = "debug")] - fn apply_member_constraint( - &mut self, - scc: ConstraintSccIndex, - member_constraint_index: NllMemberConstraintIndex, - choice_regions: &[ty::RegionVid], - ) { - // Create a mutable vector of the options. We'll try to winnow - // them down. - let mut choice_regions: Vec<ty::RegionVid> = choice_regions.to_vec(); - - // Convert to the SCC representative: sometimes we have inference - // variables in the member constraint that wind up equated with - // universal regions. The scc representative is the minimal numbered - // one from the corresponding scc so it will be the universal region - // if one exists. - for c_r in &mut choice_regions { - let scc = self.constraint_sccs.scc(*c_r); - *c_r = self.scc_representative(scc); - } - - // If the member region lives in a higher universe, we currently choose - // the most conservative option by leaving it unchanged. - if !self.max_placeholder_universe_reached(scc).is_root() { - return; - } - - // The existing value for `scc` is a lower-bound. This will - // consist of some set `{P} + {LB}` of points `{P}` and - // lower-bound free regions `{LB}`. As each choice region `O` - // is a free region, it will outlive the points. But we can - // only consider the option `O` if `O: LB`. - choice_regions.retain(|&o_r| { - self.scc_values - .universal_regions_outlived_by(scc) - .all(|lb| self.universal_region_relations.outlives(o_r, lb)) - }); - debug!(?choice_regions, "after lb"); - - // Now find all the *upper bounds* -- that is, each UB is a - // free region that must outlive the member region `R0` (`UB: - // R0`). Therefore, we need only keep an option `O` if `UB: O` - // for all UB. - let universal_region_relations = &self.universal_region_relations; - for ub in self.reverse_scc_graph().upper_bounds(scc) { - debug!(?ub); - choice_regions.retain(|&o_r| universal_region_relations.outlives(ub, o_r)); - } - debug!(?choice_regions, "after ub"); - - // At this point we can pick any member of `choice_regions` and would like to choose - // it to be a small as possible. To avoid potential non-determinism we will pick the - // smallest such choice. - // - // Because universal regions are only partially ordered (i.e, not every two regions are - // comparable), we will ignore any region that doesn't compare to all others when picking - // the minimum choice. - // - // For example, consider `choice_regions = ['static, 'a, 'b, 'c, 'd, 'e]`, where - // `'static: 'a, 'static: 'b, 'a: 'c, 'b: 'c, 'c: 'd, 'c: 'e`. - // `['d, 'e]` are ignored because they do not compare - the same goes for `['a, 'b]`. - let totally_ordered_subset = choice_regions.iter().copied().filter(|&r1| { - choice_regions.iter().all(|&r2| { - self.universal_region_relations.outlives(r1, r2) - || self.universal_region_relations.outlives(r2, r1) - }) - }); - // Now we're left with `['static, 'c]`. Pick `'c` as the minimum! - let Some(min_choice) = totally_ordered_subset.reduce(|r1, r2| { - let r1_outlives_r2 = self.universal_region_relations.outlives(r1, r2); - let r2_outlives_r1 = self.universal_region_relations.outlives(r2, r1); - match (r1_outlives_r2, r2_outlives_r1) { - (true, true) => r1.min(r2), - (true, false) => r2, - (false, true) => r1, - (false, false) => bug!("incomparable regions in total order"), + for scc_a in self.constraint_sccs.all_sccs() { + // Walk each SCC `B` such that `A: B`... + for &scc_b in self.constraint_sccs.successors(scc_a) { + debug!(?scc_b); + self.scc_values.add_region(scc_a, scc_b); } - }) else { - debug!("no unique minimum choice"); - return; - }; - - // As we require `'scc: 'min_choice`, we have definitely already computed - // its `scc_values` at this point. - let min_choice_scc = self.constraint_sccs.scc(min_choice); - debug!(?min_choice, ?min_choice_scc); - if self.scc_values.add_region(scc, min_choice_scc) { - self.member_constraints_applied.push(AppliedMemberConstraint { - member_region_scc: scc, - min_choice, - member_constraint_index, - }); } } @@ -1376,13 +1174,6 @@ impl<'tcx> RegionInferenceContext<'tcx> { self.scc_annotations[scc].max_nameable_universe() } - pub(crate) fn max_placeholder_universe_reached( - &self, - scc: ConstraintSccIndex, - ) -> UniverseIndex { - self.scc_annotations[scc].max_placeholder_universe_reached() - } - /// Checks the final value for the free region `fr` to see if it /// grew too large. In particular, examine what `end(X)` points /// wound up in `fr`'s final value; for each `end(X)` where `X != @@ -1551,43 +1342,6 @@ impl<'tcx> RegionInferenceContext<'tcx> { } } - #[instrument(level = "debug", skip(self, infcx, errors_buffer))] - fn check_member_constraints( - &self, - infcx: &InferCtxt<'tcx>, - errors_buffer: &mut RegionErrors<'tcx>, - ) { - let member_constraints = Rc::clone(&self.member_constraints); - for m_c_i in member_constraints.all_indices() { - debug!(?m_c_i); - let m_c = &member_constraints[m_c_i]; - let member_region_vid = m_c.member_region_vid; - debug!( - ?member_region_vid, - value = ?self.region_value_str(member_region_vid), - ); - let choice_regions = member_constraints.choice_regions(m_c_i); - debug!(?choice_regions); - - // Did the member region wind up equal to any of the option regions? - if let Some(o) = - choice_regions.iter().find(|&&o_r| self.eval_equal(o_r, m_c.member_region_vid)) - { - debug!("evaluated as equal to {:?}", o); - continue; - } - - // If not, report an error. - let member_region = ty::Region::new_var(infcx.tcx, member_region_vid); - errors_buffer.push(RegionErrorKind::UnexpectedHiddenRegion { - span: m_c.definition_span, - hidden_ty: m_c.hidden_ty, - key: m_c.key, - member_region, - }); - } - } - /// We have a constraint `fr1: fr2` that is not satisfied, where /// `fr2` represents some universal region. Here, `r` is some /// region where we know that `fr1: r` and this function has the @@ -1651,19 +1405,40 @@ impl<'tcx> RegionInferenceContext<'tcx> { } /// Walks the graph of constraints (where `'a: 'b` is considered - /// an edge `'a -> 'b`) to find all paths from `from_region` to - /// `to_region`. The paths are accumulated into the vector - /// `results`. The paths are stored as a series of - /// `ConstraintIndex` values -- in other words, a list of *edges*. + /// an edge `'a -> 'b`) to find a path from `from_region` to + /// `to_region`. /// /// Returns: a series of constraints as well as the region `R` /// that passed the target test. #[instrument(skip(self, target_test), ret)] - pub(crate) fn find_constraint_paths_between_regions( + pub(crate) fn find_constraint_path_between_regions( &self, from_region: RegionVid, target_test: impl Fn(RegionVid) -> bool, ) -> Option<(Vec<OutlivesConstraint<'tcx>>, RegionVid)> { + self.find_constraint_path_between_regions_inner(true, from_region, &target_test).or_else( + || self.find_constraint_path_between_regions_inner(false, from_region, &target_test), + ) + } + + /// The constraints we get from equating the hidden type of each use of an opaque + /// with its final concrete type may end up getting preferred over other, potentially + /// longer constraint paths. + /// + /// Given that we compute the final concrete type by relying on this existing constraint + /// path, this can easily end up hiding the actual reason for why we require these regions + /// to be equal. + /// + /// To handle this, we first look at the path while ignoring these constraints and then + /// retry while considering them. This is not perfect, as the `from_region` may have already + /// been partially related to its argument region, so while we rely on a member constraint + /// to get a complete path, the most relevant step of that path already existed before then. + fn find_constraint_path_between_regions_inner( + &self, + ignore_opaque_type_constraints: bool, + from_region: RegionVid, + target_test: impl Fn(RegionVid) -> bool, + ) -> Option<(Vec<OutlivesConstraint<'tcx>>, RegionVid)> { let mut context = IndexVec::from_elem(Trace::NotVisited, &self.definitions); context[from_region] = Trace::StartRegion; @@ -1677,7 +1452,7 @@ impl<'tcx> RegionInferenceContext<'tcx> { while let Some(r) = deque.pop_front() { debug!( - "find_constraint_paths_between_regions: from_region={:?} r={:?} value={}", + "find_constraint_path_between_regions: from_region={:?} r={:?} value={}", from_region, r, self.region_value_str(r), @@ -1711,20 +1486,6 @@ impl<'tcx> RegionInferenceContext<'tcx> { result.push(c); } - Trace::FromMember(sup, sub, span) => { - let c = OutlivesConstraint { - sup, - sub, - locations: Locations::All(span), - span, - category: ConstraintCategory::OpaqueType, - variance_info: ty::VarianceDiagInfo::default(), - from_closure: false, - }; - p = c.sup; - result.push(c); - } - Trace::StartRegion => { result.reverse(); return Some((result, r)); @@ -1763,23 +1524,21 @@ impl<'tcx> RegionInferenceContext<'tcx> { let edges = self.constraint_graph.outgoing_edges_from_graph(r, &self.constraints); // This loop can be hot. for constraint in edges { - if matches!(constraint.category, ConstraintCategory::IllegalUniverse) { - debug!("Ignoring illegal universe constraint: {constraint:?}"); - continue; + match constraint.category { + ConstraintCategory::IllegalUniverse => { + debug!("Ignoring illegal universe constraint: {constraint:?}"); + continue; + } + ConstraintCategory::OpaqueType if ignore_opaque_type_constraints => { + debug!("Ignoring member constraint: {constraint:?}"); + continue; + } + _ => {} } debug_assert_eq!(constraint.sup, r); handle_trace(constraint.sub, Trace::FromGraph(constraint)); } } - - // Member constraints can also give rise to `'r: 'x` edges that - // were not part of the graph initially, so watch out for those. - // (But they are extremely rare; this loop is very cold.) - for constraint in self.applied_member_constraints(self.constraint_sccs.scc(r)) { - let sub = constraint.min_choice; - let p_c = &self.member_constraints[constraint.member_constraint_index]; - handle_trace(sub, Trace::FromMember(r, sub, p_c.definition_span)); - } } None @@ -1790,7 +1549,7 @@ impl<'tcx> RegionInferenceContext<'tcx> { pub(crate) fn find_sub_region_live_at(&self, fr1: RegionVid, location: Location) -> RegionVid { trace!(scc = ?self.constraint_sccs.scc(fr1)); trace!(universe = ?self.max_nameable_universe(self.constraint_sccs.scc(fr1))); - self.find_constraint_paths_between_regions(fr1, |r| { + self.find_constraint_path_between_regions(fr1, |r| { // First look for some `r` such that `fr1: r` and `r` is live at `location` trace!(?r, liveness_constraints=?self.liveness_constraints.pretty_print_live_points(r)); self.liveness_constraints.is_live_at(r, location) @@ -1800,9 +1559,7 @@ impl<'tcx> RegionInferenceContext<'tcx> { // `fr1: r` and `r` is a placeholder from some universe // `fr1` cannot name. This would force `fr1` to be // `'static`. - self.find_constraint_paths_between_regions(fr1, |r| { - self.cannot_name_placeholder(fr1, r) - }) + self.find_constraint_path_between_regions(fr1, |r| self.cannot_name_placeholder(fr1, r)) }) .or_else(|| { // If we fail to find THAT, it may be that `fr1` is a @@ -1815,9 +1572,7 @@ impl<'tcx> RegionInferenceContext<'tcx> { // must be able to name the universe of R2, because R2 will // be at least `'empty(Universe(R2))`, and `R1` must be at // larger than that. - self.find_constraint_paths_between_regions(fr1, |r| { - self.cannot_name_placeholder(r, fr1) - }) + self.find_constraint_path_between_regions(fr1, |r| self.cannot_name_placeholder(r, fr1)) }) .map(|(_path, r)| r) .unwrap() @@ -1873,9 +1628,9 @@ impl<'tcx> RegionInferenceContext<'tcx> { ) -> (BlameConstraint<'tcx>, Vec<OutlivesConstraint<'tcx>>) { // Find all paths let (path, target_region) = self - .find_constraint_paths_between_regions(from_region, target_test) + .find_constraint_path_between_regions(from_region, target_test) .or_else(|| { - self.find_constraint_paths_between_regions(from_region, |r| { + self.find_constraint_path_between_regions(from_region, |r| { self.cannot_name_placeholder(from_region, r) }) }) @@ -2111,11 +1866,6 @@ impl<'tcx> RegionInferenceContext<'tcx> { &self.constraint_sccs } - /// Access to the region graph, built from the outlives constraints. - pub(crate) fn region_graph(&self) -> RegionGraph<'_, 'tcx, graph::Normal> { - self.constraint_graph.region_graph(&self.constraints, self.universal_regions().fr_static) - } - /// Returns the representative `RegionVid` for a given SCC. /// See `RegionTracker` for how a region variable ID is chosen. /// diff --git a/compiler/rustc_borrowck/src/region_infer/opaque_types.rs b/compiler/rustc_borrowck/src/region_infer/opaque_types.rs deleted file mode 100644 index 23c4554aa15..00000000000 --- a/compiler/rustc_borrowck/src/region_infer/opaque_types.rs +++ /dev/null @@ -1,299 +0,0 @@ -use rustc_data_structures::fx::FxIndexMap; -use rustc_infer::infer::{InferCtxt, NllRegionVariableOrigin}; -use rustc_macros::extension; -use rustc_middle::ty::{ - self, DefiningScopeKind, OpaqueHiddenType, OpaqueTypeKey, Ty, TyCtxt, TypeFoldable, - TypeVisitableExt, fold_regions, -}; -use rustc_span::Span; -use rustc_trait_selection::opaque_types::{ - InvalidOpaqueTypeArgs, check_opaque_type_parameter_valid, -}; -use tracing::{debug, instrument}; - -use super::RegionInferenceContext; -use crate::BorrowCheckRootCtxt; -use crate::session_diagnostics::LifetimeMismatchOpaqueParam; -use crate::universal_regions::RegionClassification; - -pub(crate) enum DeferredOpaqueTypeError<'tcx> { - InvalidOpaqueTypeArgs(InvalidOpaqueTypeArgs<'tcx>), - LifetimeMismatchOpaqueParam(LifetimeMismatchOpaqueParam<'tcx>), -} - -impl<'tcx> RegionInferenceContext<'tcx> { - /// Resolve any opaque types that were encountered while borrow checking - /// this item. This is then used to get the type in the `type_of` query. - /// - /// For example consider `fn f<'a>(x: &'a i32) -> impl Sized + 'a { x }`. - /// This is lowered to give HIR something like - /// - /// type f<'a>::_Return<'_x> = impl Sized + '_x; - /// fn f<'a>(x: &'a i32) -> f<'a>::_Return<'a> { x } - /// - /// When checking the return type record the type from the return and the - /// type used in the return value. In this case they might be `_Return<'1>` - /// and `&'2 i32` respectively. - /// - /// Once we to this method, we have completed region inference and want to - /// call `infer_opaque_definition_from_instantiation` to get the inferred - /// type of `_Return<'_x>`. `infer_opaque_definition_from_instantiation` - /// compares lifetimes directly, so we need to map the inference variables - /// back to concrete lifetimes: `'static`, `ReEarlyParam` or `ReLateParam`. - /// - /// First we map the regions in the generic parameters `_Return<'1>` to - /// their `external_name` giving `_Return<'a>`. This step is a bit involved. - /// See the [rustc-dev-guide chapter] for more info. - /// - /// Then we map all the lifetimes in the concrete type to an equal - /// universal region that occurs in the opaque type's args, in this case - /// this would result in `&'a i32`. We only consider regions in the args - /// in case there is an equal region that does not. For example, this should - /// be allowed: - /// `fn f<'a: 'b, 'b: 'a>(x: *mut &'b i32) -> impl Sized + 'a { x }` - /// - /// This will then allow `infer_opaque_definition_from_instantiation` to - /// determine that `_Return<'_x> = &'_x i32`. - /// - /// There's a slight complication around closures. Given - /// `fn f<'a: 'a>() { || {} }` the closure's type is something like - /// `f::<'a>::{{closure}}`. The region parameter from f is essentially - /// ignored by type checking so ends up being inferred to an empty region. - /// Calling `universal_upper_bound` for such a region gives `fr_fn_body`, - /// which has no `external_name` in which case we use `'{erased}` as the - /// region to pass to `infer_opaque_definition_from_instantiation`. - /// - /// [rustc-dev-guide chapter]: - /// https://rustc-dev-guide.rust-lang.org/opaque-types-region-infer-restrictions.html - #[instrument(level = "debug", skip(self, root_cx, infcx))] - pub(crate) fn infer_opaque_types( - &self, - root_cx: &mut BorrowCheckRootCtxt<'tcx>, - infcx: &InferCtxt<'tcx>, - opaque_ty_decls: FxIndexMap<OpaqueTypeKey<'tcx>, OpaqueHiddenType<'tcx>>, - ) -> Vec<DeferredOpaqueTypeError<'tcx>> { - let mut errors = Vec::new(); - let mut decls_modulo_regions: FxIndexMap<OpaqueTypeKey<'tcx>, (OpaqueTypeKey<'tcx>, Span)> = - FxIndexMap::default(); - - for (opaque_type_key, concrete_type) in opaque_ty_decls { - debug!(?opaque_type_key, ?concrete_type); - - let mut arg_regions: Vec<(ty::RegionVid, ty::Region<'_>)> = - vec![(self.universal_regions().fr_static, infcx.tcx.lifetimes.re_static)]; - - let opaque_type_key = - opaque_type_key.fold_captured_lifetime_args(infcx.tcx, |region| { - // Use the SCC representative instead of directly using `region`. - // See [rustc-dev-guide chapter] § "Strict lifetime equality". - let scc = self.constraint_sccs.scc(region.as_var()); - let vid = self.scc_representative(scc); - let named = match self.definitions[vid].origin { - // Iterate over all universal regions in a consistent order and find the - // *first* equal region. This makes sure that equal lifetimes will have - // the same name and simplifies subsequent handling. - // See [rustc-dev-guide chapter] § "Semantic lifetime equality". - NllRegionVariableOrigin::FreeRegion => self - .universal_regions() - .universal_regions_iter() - .filter(|&ur| { - // See [rustc-dev-guide chapter] § "Closure restrictions". - !matches!( - self.universal_regions().region_classification(ur), - Some(RegionClassification::External) - ) - }) - .find(|&ur| self.universal_region_relations.equal(vid, ur)) - .map(|ur| self.definitions[ur].external_name.unwrap()), - NllRegionVariableOrigin::Placeholder(placeholder) => { - Some(ty::Region::new_placeholder(infcx.tcx, placeholder)) - } - NllRegionVariableOrigin::Existential { .. } => None, - } - .unwrap_or_else(|| { - ty::Region::new_error_with_message( - infcx.tcx, - concrete_type.span, - "opaque type with non-universal region args", - ) - }); - - arg_regions.push((vid, named)); - named - }); - debug!(?opaque_type_key, ?arg_regions); - - let concrete_type = fold_regions(infcx.tcx, concrete_type, |region, _| { - arg_regions - .iter() - .find(|&&(arg_vid, _)| self.eval_equal(region.as_var(), arg_vid)) - .map(|&(_, arg_named)| arg_named) - .unwrap_or(infcx.tcx.lifetimes.re_erased) - }); - debug!(?concrete_type); - - let ty = match infcx - .infer_opaque_definition_from_instantiation(opaque_type_key, concrete_type) - { - Ok(ty) => ty, - Err(err) => { - errors.push(DeferredOpaqueTypeError::InvalidOpaqueTypeArgs(err)); - continue; - } - }; - - // Sometimes, when the hidden type is an inference variable, it can happen that - // the hidden type becomes the opaque type itself. In this case, this was an opaque - // usage of the opaque type and we can ignore it. This check is mirrored in typeck's - // writeback. - if !infcx.next_trait_solver() { - if let ty::Alias(ty::Opaque, alias_ty) = ty.kind() - && alias_ty.def_id == opaque_type_key.def_id.to_def_id() - && alias_ty.args == opaque_type_key.args - { - continue; - } - } - - root_cx.add_concrete_opaque_type( - opaque_type_key.def_id, - OpaqueHiddenType { span: concrete_type.span, ty }, - ); - - // Check that all opaque types have the same region parameters if they have the same - // non-region parameters. This is necessary because within the new solver we perform - // various query operations modulo regions, and thus could unsoundly select some impls - // that don't hold. - if let Some((prev_decl_key, prev_span)) = decls_modulo_regions.insert( - infcx.tcx.erase_regions(opaque_type_key), - (opaque_type_key, concrete_type.span), - ) && let Some((arg1, arg2)) = std::iter::zip( - prev_decl_key.iter_captured_args(infcx.tcx).map(|(_, arg)| arg), - opaque_type_key.iter_captured_args(infcx.tcx).map(|(_, arg)| arg), - ) - .find(|(arg1, arg2)| arg1 != arg2) - { - errors.push(DeferredOpaqueTypeError::LifetimeMismatchOpaqueParam( - LifetimeMismatchOpaqueParam { - arg: arg1, - prev: arg2, - span: prev_span, - prev_span: concrete_type.span, - }, - )); - } - } - - errors - } - - /// Map the regions in the type to named regions. This is similar to what - /// `infer_opaque_types` does, but can infer any universal region, not only - /// ones from the args for the opaque type. It also doesn't double check - /// that the regions produced are in fact equal to the named region they are - /// replaced with. This is fine because this function is only to improve the - /// region names in error messages. - /// - /// This differs from `MirBorrowckCtxt::name_regions` since it is particularly - /// lax with mapping region vids that are *shorter* than a universal region to - /// that universal region. This is useful for member region constraints since - /// we want to suggest a universal region name to capture even if it's technically - /// not equal to the error region. - pub(crate) fn name_regions_for_member_constraint<T>(&self, tcx: TyCtxt<'tcx>, ty: T) -> T - where - T: TypeFoldable<TyCtxt<'tcx>>, - { - fold_regions(tcx, ty, |region, _| match region.kind() { - ty::ReVar(vid) => { - let scc = self.constraint_sccs.scc(vid); - - // Special handling of higher-ranked regions. - if !self.max_nameable_universe(scc).is_root() { - match self.scc_values.placeholders_contained_in(scc).enumerate().last() { - // If the region contains a single placeholder then they're equal. - Some((0, placeholder)) => { - return ty::Region::new_placeholder(tcx, placeholder); - } - - // Fallback: this will produce a cryptic error message. - _ => return region, - } - } - - // Find something that we can name - let upper_bound = self.approx_universal_upper_bound(vid); - if let Some(universal_region) = self.definitions[upper_bound].external_name { - return universal_region; - } - - // Nothing exact found, so we pick a named upper bound, if there's only one. - // If there's >1 universal region, then we probably are dealing w/ an intersection - // region which cannot be mapped back to a universal. - // FIXME: We could probably compute the LUB if there is one. - let scc = self.constraint_sccs.scc(vid); - let upper_bounds: Vec<_> = self - .reverse_scc_graph() - .upper_bounds(scc) - .filter_map(|vid| self.definitions[vid].external_name) - .filter(|r| !r.is_static()) - .collect(); - match &upper_bounds[..] { - [universal_region] => *universal_region, - _ => region, - } - } - _ => region, - }) - } -} - -#[extension(pub trait InferCtxtExt<'tcx>)] -impl<'tcx> InferCtxt<'tcx> { - /// Given the fully resolved, instantiated type for an opaque - /// type, i.e., the value of an inference variable like C1 or C2 - /// (*), computes the "definition type" for an opaque type - /// definition -- that is, the inferred value of `Foo1<'x>` or - /// `Foo2<'x>` that we would conceptually use in its definition: - /// ```ignore (illustrative) - /// type Foo1<'x> = impl Bar<'x> = AAA; // <-- this type AAA - /// type Foo2<'x> = impl Bar<'x> = BBB; // <-- or this type BBB - /// fn foo<'a, 'b>(..) -> (Foo1<'a>, Foo2<'b>) { .. } - /// ``` - /// Note that these values are defined in terms of a distinct set of - /// generic parameters (`'x` instead of `'a`) from C1 or C2. The main - /// purpose of this function is to do that translation. - /// - /// (*) C1 and C2 were introduced in the comments on - /// `register_member_constraints`. Read that comment for more context. - /// - /// # Parameters - /// - /// - `def_id`, the `impl Trait` type - /// - `args`, the args used to instantiate this opaque type - /// - `instantiated_ty`, the inferred type C1 -- fully resolved, lifted version of - /// `opaque_defn.concrete_ty` - #[instrument(level = "debug", skip(self))] - fn infer_opaque_definition_from_instantiation( - &self, - opaque_type_key: OpaqueTypeKey<'tcx>, - instantiated_ty: OpaqueHiddenType<'tcx>, - ) -> Result<Ty<'tcx>, InvalidOpaqueTypeArgs<'tcx>> { - check_opaque_type_parameter_valid( - self, - opaque_type_key, - instantiated_ty.span, - DefiningScopeKind::MirBorrowck, - )?; - - let definition_ty = instantiated_ty - .remap_generic_params_to_declaration_params( - opaque_type_key, - self.tcx, - DefiningScopeKind::MirBorrowck, - ) - .ty; - - definition_ty.error_reported()?; - Ok(definition_ty) - } -} diff --git a/compiler/rustc_borrowck/src/region_infer/opaque_types/member_constraints.rs b/compiler/rustc_borrowck/src/region_infer/opaque_types/member_constraints.rs new file mode 100644 index 00000000000..667fc440ac0 --- /dev/null +++ b/compiler/rustc_borrowck/src/region_infer/opaque_types/member_constraints.rs @@ -0,0 +1,194 @@ +use rustc_data_structures::fx::FxHashMap; +use rustc_hir::def_id::DefId; +use rustc_middle::bug; +use rustc_middle::ty::{ + self, GenericArgsRef, Region, RegionVid, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, + TypeVisitor, +}; +use tracing::{debug, instrument}; + +use super::DefiningUse; +use super::region_ctxt::RegionCtxt; +use crate::constraints::ConstraintSccIndex; + +pub(super) fn apply_member_constraints<'tcx>( + rcx: &mut RegionCtxt<'_, 'tcx>, + defining_uses: &[DefiningUse<'tcx>], +) { + // Start by collecting the member constraints of all defining uses. + // + // Applying member constraints can influence other member constraints, + // so we first collect and then apply them. + let mut member_constraints = Default::default(); + for defining_use in defining_uses { + let mut visitor = CollectMemberConstraintsVisitor { + rcx, + defining_use, + member_constraints: &mut member_constraints, + }; + defining_use.hidden_type.ty.visit_with(&mut visitor); + } + + // Now walk over the region graph, visiting the smallest regions first and then all + // regions which have to outlive that one. + // + // Whenever we encounter a member region, we mutate the value of this SCC. This is + // as if we'd introduce new outlives constraints. However, we discard these region + // values after we've inferred the hidden types of opaques and apply the region + // constraints by simply equating the actual hidden type with the inferred one. + debug!(?member_constraints); + for scc_a in rcx.constraint_sccs.all_sccs() { + debug!(?scc_a); + // Start by adding the region values required by outlives constraints. This + // matches how we compute the final region values in `fn compute_regions`. + // + // We need to do this here to get a lower bound when applying member constraints. + // This propagates the region values added by previous member constraints. + for &scc_b in rcx.constraint_sccs.successors(scc_a) { + debug!(?scc_b); + rcx.scc_values.add_region(scc_a, scc_b); + } + + for defining_use in member_constraints.get(&scc_a).into_iter().flatten() { + apply_member_constraint(rcx, scc_a, &defining_use.arg_regions); + } + } +} + +#[instrument(level = "debug", skip(rcx))] +fn apply_member_constraint<'tcx>( + rcx: &mut RegionCtxt<'_, 'tcx>, + member: ConstraintSccIndex, + arg_regions: &[RegionVid], +) { + // If the member region lives in a higher universe, we currently choose + // the most conservative option by leaving it unchanged. + if !rcx.max_placeholder_universe_reached(member).is_root() { + return; + } + + // The existing value of `'member` is a lower-bound. If its is already larger than + // some universal region, we cannot equate it with that region. Said differently, we + // ignore choice regions which are smaller than this member region. + let mut choice_regions = arg_regions + .iter() + .copied() + .map(|r| rcx.representative(r).rvid()) + .filter(|&choice_region| { + rcx.scc_values.universal_regions_outlived_by(member).all(|lower_bound| { + rcx.universal_region_relations.outlives(choice_region, lower_bound) + }) + }) + .collect::<Vec<_>>(); + debug!(?choice_regions, "after enforcing lower-bound"); + + // Now find all the *upper bounds* -- that is, each UB is a + // free region that must outlive the member region `R0` (`UB: + // R0`). Therefore, we need only keep an option `O` if `UB: O` + // for all UB. + // + // If we have a requirement `'upper_bound: 'member`, equating `'member` + // with some region `'choice` means we now also require `'upper_bound: 'choice`. + // Avoid choice regions for which this does not hold. + for ub in rcx.rev_scc_graph.upper_bounds(member) { + choice_regions + .retain(|&choice_region| rcx.universal_region_relations.outlives(ub, choice_region)); + } + debug!(?choice_regions, "after enforcing upper-bound"); + + // At this point we can pick any member of `choice_regions` and would like to choose + // it to be a small as possible. To avoid potential non-determinism we will pick the + // smallest such choice. + // + // Because universal regions are only partially ordered (i.e, not every two regions are + // comparable), we will ignore any region that doesn't compare to all others when picking + // the minimum choice. + // + // For example, consider `choice_regions = ['static, 'a, 'b, 'c, 'd, 'e]`, where + // `'static: 'a, 'static: 'b, 'a: 'c, 'b: 'c, 'c: 'd, 'c: 'e`. + // `['d, 'e]` are ignored because they do not compare - the same goes for `['a, 'b]`. + let totally_ordered_subset = choice_regions.iter().copied().filter(|&r1| { + choice_regions.iter().all(|&r2| { + rcx.universal_region_relations.outlives(r1, r2) + || rcx.universal_region_relations.outlives(r2, r1) + }) + }); + // Now we're left with `['static, 'c]`. Pick `'c` as the minimum! + let Some(min_choice) = totally_ordered_subset.reduce(|r1, r2| { + let r1_outlives_r2 = rcx.universal_region_relations.outlives(r1, r2); + let r2_outlives_r1 = rcx.universal_region_relations.outlives(r2, r1); + match (r1_outlives_r2, r2_outlives_r1) { + (true, true) => r1.min(r2), + (true, false) => r2, + (false, true) => r1, + (false, false) => bug!("incomparable regions in total order"), + } + }) else { + debug!("no unique minimum choice"); + return; + }; + + debug!(?min_choice); + // Lift the member region to be at least as large as this `min_choice` by directly + // mutating the `scc_values` as we compute it. This acts as if we've added a + // `'member: 'min_choice` while not recomputing sccs. This means different sccs + // may now actually be equal. + let min_choice_scc = rcx.constraint_sccs.scc(min_choice); + rcx.scc_values.add_region(member, min_choice_scc); +} + +struct CollectMemberConstraintsVisitor<'a, 'b, 'tcx> { + rcx: &'a RegionCtxt<'a, 'tcx>, + defining_use: &'b DefiningUse<'tcx>, + member_constraints: &'a mut FxHashMap<ConstraintSccIndex, Vec<&'b DefiningUse<'tcx>>>, +} +impl<'tcx> CollectMemberConstraintsVisitor<'_, '_, 'tcx> { + fn cx(&self) -> TyCtxt<'tcx> { + self.rcx.infcx.tcx + } + fn visit_closure_args(&mut self, def_id: DefId, args: GenericArgsRef<'tcx>) { + let generics = self.cx().generics_of(def_id); + for arg in args.iter().skip(generics.parent_count) { + arg.visit_with(self); + } + } +} +impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for CollectMemberConstraintsVisitor<'_, '_, 'tcx> { + fn visit_region(&mut self, r: Region<'tcx>) { + match r.kind() { + ty::ReBound(..) => return, + ty::ReVar(vid) => { + let scc = self.rcx.constraint_sccs.scc(vid); + self.member_constraints.entry(scc).or_default().push(self.defining_use); + } + _ => unreachable!(), + } + } + + fn visit_ty(&mut self, ty: Ty<'tcx>) { + if !ty.flags().intersects(ty::TypeFlags::HAS_FREE_REGIONS) { + return; + } + + match *ty.kind() { + ty::Closure(def_id, args) + | ty::CoroutineClosure(def_id, args) + | ty::Coroutine(def_id, args) => self.visit_closure_args(def_id, args), + + ty::Alias(kind, ty::AliasTy { def_id, args, .. }) + if let Some(variances) = self.cx().opt_alias_variances(kind, def_id) => + { + // Skip lifetime parameters that are not captured, since they do + // not need member constraints registered for them; we'll erase + // them (and hopefully in the future replace them with placeholders). + for (&v, arg) in std::iter::zip(variances, args.iter()) { + if v != ty::Bivariant { + arg.visit_with(self) + } + } + } + + _ => ty.super_visit_with(self), + } + } +} diff --git a/compiler/rustc_borrowck/src/region_infer/opaque_types/mod.rs b/compiler/rustc_borrowck/src/region_infer/opaque_types/mod.rs new file mode 100644 index 00000000000..bee82e17835 --- /dev/null +++ b/compiler/rustc_borrowck/src/region_infer/opaque_types/mod.rs @@ -0,0 +1,697 @@ +use std::iter; +use std::rc::Rc; + +use rustc_data_structures::frozen::Frozen; +use rustc_data_structures::fx::FxIndexMap; +use rustc_hir::def_id::DefId; +use rustc_infer::infer::outlives::env::RegionBoundPairs; +use rustc_infer::infer::{InferCtxt, NllRegionVariableOrigin, OpaqueTypeStorageEntries}; +use rustc_infer::traits::ObligationCause; +use rustc_macros::extension; +use rustc_middle::mir::{Body, ConstraintCategory}; +use rustc_middle::ty::{ + self, DefiningScopeKind, FallibleTypeFolder, GenericArg, GenericArgsRef, OpaqueHiddenType, + OpaqueTypeKey, Region, RegionVid, Ty, TyCtxt, TypeFoldable, TypeSuperFoldable, + TypeVisitableExt, fold_regions, +}; +use rustc_mir_dataflow::points::DenseLocationMap; +use rustc_span::Span; +use rustc_trait_selection::opaque_types::{ + NonDefiningUseReason, opaque_type_has_defining_use_args, +}; +use rustc_trait_selection::solve::NoSolution; +use rustc_trait_selection::traits::query::type_op::custom::CustomTypeOp; +use tracing::{debug, instrument}; + +use super::reverse_sccs::ReverseSccGraph; +use crate::consumers::RegionInferenceContext; +use crate::session_diagnostics::LifetimeMismatchOpaqueParam; +use crate::type_check::canonical::fully_perform_op_raw; +use crate::type_check::free_region_relations::UniversalRegionRelations; +use crate::type_check::{Locations, MirTypeckRegionConstraints}; +use crate::universal_regions::{RegionClassification, UniversalRegions}; +use crate::{BorrowCheckRootCtxt, BorrowckInferCtxt}; + +mod member_constraints; +mod region_ctxt; + +use member_constraints::apply_member_constraints; +use region_ctxt::RegionCtxt; + +/// We defer errors from [fn handle_opaque_type_uses] and only report them +/// if there are no `RegionErrors`. If there are region errors, it's likely +/// that errors here are caused by them and don't need to be handled separately. +pub(crate) enum DeferredOpaqueTypeError<'tcx> { + InvalidOpaqueTypeArgs(NonDefiningUseReason<'tcx>), + LifetimeMismatchOpaqueParam(LifetimeMismatchOpaqueParam<'tcx>), + UnexpectedHiddenRegion { + /// The opaque type. + opaque_type_key: OpaqueTypeKey<'tcx>, + /// The hidden type containing the member region. + hidden_type: OpaqueHiddenType<'tcx>, + /// The unexpected region. + member_region: Region<'tcx>, + }, + NonDefiningUseInDefiningScope { + span: Span, + opaque_type_key: OpaqueTypeKey<'tcx>, + }, +} + +/// This looks at all uses of opaque types in their defining scope inside +/// of this function. +/// +/// It first uses all defining uses to compute the actual concrete type of each +/// opaque type definition. +/// +/// We then apply this inferred type to actually check all uses of the opaque. +pub(crate) fn handle_opaque_type_uses<'tcx>( + root_cx: &mut BorrowCheckRootCtxt<'tcx>, + infcx: &BorrowckInferCtxt<'tcx>, + body: &Body<'tcx>, + universal_region_relations: &Frozen<UniversalRegionRelations<'tcx>>, + region_bound_pairs: &RegionBoundPairs<'tcx>, + known_type_outlives_obligations: &[ty::PolyTypeOutlivesPredicate<'tcx>], + location_map: &Rc<DenseLocationMap>, + constraints: &mut MirTypeckRegionConstraints<'tcx>, +) -> Vec<DeferredOpaqueTypeError<'tcx>> { + let tcx = infcx.tcx; + let opaque_types = infcx.clone_opaque_types(); + if opaque_types.is_empty() { + return Vec::new(); + } + + // We need to eagerly map all regions to NLL vars here, as we need to make sure we've + // introduced nll vars for all used placeholders. + // + // We need to resolve inference vars as even though we're in MIR typeck, we may still + // encounter inference variables, e.g. when checking user types. + let opaque_types_storage_num_entries = infcx.inner.borrow_mut().opaque_types().num_entries(); + let opaque_types = opaque_types + .into_iter() + .map(|entry| { + fold_regions(tcx, infcx.resolve_vars_if_possible(entry), |r, _| { + let vid = if let ty::RePlaceholder(placeholder) = r.kind() { + constraints.placeholder_region(infcx, placeholder).as_var() + } else { + universal_region_relations.universal_regions.to_region_vid(r) + }; + Region::new_var(tcx, vid) + }) + }) + .collect::<Vec<_>>(); + + debug!(?opaque_types); + + let errors = compute_concrete_opaque_types( + root_cx, + infcx, + constraints, + universal_region_relations, + Rc::clone(location_map), + &opaque_types, + ); + + if !errors.is_empty() { + return errors; + } + + let errors = apply_computed_concrete_opaque_types( + root_cx, + infcx, + body, + &universal_region_relations.universal_regions, + region_bound_pairs, + known_type_outlives_obligations, + constraints, + &opaque_types, + ); + + detect_opaque_types_added_while_handling_opaque_types(infcx, opaque_types_storage_num_entries); + + errors +} + +/// Maps an NLL var to a deterministically chosen equal universal region. +/// +/// See the corresponding [rustc-dev-guide chapter] for more details. This +/// ignores changes to the region values due to member constraints. Applying +/// member constraints does not impact the result of this function. +/// +/// [rustc-dev-guide chapter]: https://rustc-dev-guide.rust-lang.org/borrow_check/opaque-types-region-inference-restrictions.html +fn nll_var_to_universal_region<'tcx>( + rcx: &RegionCtxt<'_, 'tcx>, + r: RegionVid, +) -> Option<Region<'tcx>> { + // Use the SCC representative instead of directly using `region`. + // See [rustc-dev-guide chapter] § "Strict lifetime equality". + let vid = rcx.representative(r).rvid(); + match rcx.definitions[vid].origin { + // Iterate over all universal regions in a consistent order and find the + // *first* equal region. This makes sure that equal lifetimes will have + // the same name and simplifies subsequent handling. + // See [rustc-dev-guide chapter] § "Semantic lifetime equality". + NllRegionVariableOrigin::FreeRegion => rcx + .universal_regions() + .universal_regions_iter() + .filter(|&ur| { + // See [rustc-dev-guide chapter] § "Closure restrictions". + !matches!( + rcx.universal_regions().region_classification(ur), + Some(RegionClassification::External) + ) + }) + .find(|&ur| rcx.universal_region_relations.equal(vid, ur)) + .map(|ur| rcx.definitions[ur].external_name.unwrap()), + NllRegionVariableOrigin::Placeholder(placeholder) => { + Some(ty::Region::new_placeholder(rcx.infcx.tcx, placeholder)) + } + // If `r` were equal to any universal region, its SCC representative + // would have been set to a free region. + NllRegionVariableOrigin::Existential { .. } => None, + } +} + +#[derive(Debug)] +struct DefiningUse<'tcx> { + /// The opaque type using non NLL vars. This uses the actual + /// free regions and placeholders. This is necessary + /// to interact with code outside of `rustc_borrowck`. + opaque_type_key: OpaqueTypeKey<'tcx>, + arg_regions: Vec<RegionVid>, + hidden_type: OpaqueHiddenType<'tcx>, +} + +/// This computes the actual hidden types of the opaque types and maps them to their +/// definition sites. Outside of registering the computed concrete types this function +/// does not mutate the current borrowck state. +/// +/// While it may fail to infer the hidden type and return errors, we always apply +/// the computed concrete hidden type to all opaque type uses to check whether they +/// are correct. This is necessary to support non-defining uses of opaques in their +/// defining scope. +/// +/// It also means that this whole function is not really soundness critical as we +/// recheck all uses of the opaques regardless. +fn compute_concrete_opaque_types<'tcx>( + root_cx: &mut BorrowCheckRootCtxt<'tcx>, + infcx: &BorrowckInferCtxt<'tcx>, + constraints: &MirTypeckRegionConstraints<'tcx>, + universal_region_relations: &Frozen<UniversalRegionRelations<'tcx>>, + location_map: Rc<DenseLocationMap>, + opaque_types: &[(OpaqueTypeKey<'tcx>, OpaqueHiddenType<'tcx>)], +) -> Vec<DeferredOpaqueTypeError<'tcx>> { + let mut errors = Vec::new(); + // When computing the hidden type we need to track member constraints. + // We don't mutate the region graph used by `fn compute_regions` but instead + // manually track region information via a `RegionCtxt`. We discard this + // information at the end of this function. + let mut rcx = RegionCtxt::new(infcx, universal_region_relations, location_map, constraints); + + // We start by checking each use of an opaque type during type check and + // check whether the generic arguments of the opaque type are fully + // universal, if so, it's a defining use. + let defining_uses = collect_defining_uses(root_cx, &mut rcx, opaque_types, &mut errors); + + // We now compute and apply member constraints for all regions in the hidden + // types of each defining use. This mutates the region values of the `rcx` which + // is used when mapping the defining uses to the definition site. + apply_member_constraints(&mut rcx, &defining_uses); + + // After applying member constraints, we now check whether all member regions ended + // up equal to one of their choice regions and compute the actual concrete type of + // the opaque type definition. This is stored in the `root_cx`. + compute_concrete_types_from_defining_uses(root_cx, &rcx, &defining_uses, &mut errors); + errors +} + +#[instrument(level = "debug", skip_all, ret)] +fn collect_defining_uses<'tcx>( + root_cx: &mut BorrowCheckRootCtxt<'tcx>, + rcx: &mut RegionCtxt<'_, 'tcx>, + opaque_types: &[(OpaqueTypeKey<'tcx>, OpaqueHiddenType<'tcx>)], + errors: &mut Vec<DeferredOpaqueTypeError<'tcx>>, +) -> Vec<DefiningUse<'tcx>> { + let infcx = rcx.infcx; + let mut defining_uses = vec![]; + for &(opaque_type_key, hidden_type) in opaque_types { + let non_nll_opaque_type_key = opaque_type_key.fold_captured_lifetime_args(infcx.tcx, |r| { + nll_var_to_universal_region(&rcx, r.as_var()).unwrap_or(r) + }); + if let Err(err) = opaque_type_has_defining_use_args( + infcx, + non_nll_opaque_type_key, + hidden_type.span, + DefiningScopeKind::MirBorrowck, + ) { + // A non-defining use. This is a hard error on stable and gets ignored + // with `TypingMode::Borrowck`. + if infcx.tcx.use_typing_mode_borrowck() { + match err { + NonDefiningUseReason::Tainted(guar) => root_cx.add_concrete_opaque_type( + opaque_type_key.def_id, + OpaqueHiddenType::new_error(infcx.tcx, guar), + ), + _ => debug!(?non_nll_opaque_type_key, ?err, "ignoring non-defining use"), + } + } else { + errors.push(DeferredOpaqueTypeError::InvalidOpaqueTypeArgs(err)); + } + continue; + } + + // We use the original `opaque_type_key` to compute the `arg_regions`. + let arg_regions = iter::once(rcx.universal_regions().fr_static) + .chain( + opaque_type_key + .iter_captured_args(infcx.tcx) + .filter_map(|(_, arg)| arg.as_region()) + .map(Region::as_var), + ) + .collect(); + defining_uses.push(DefiningUse { + opaque_type_key: non_nll_opaque_type_key, + arg_regions, + hidden_type, + }); + } + + defining_uses +} + +fn compute_concrete_types_from_defining_uses<'tcx>( + root_cx: &mut BorrowCheckRootCtxt<'tcx>, + rcx: &RegionCtxt<'_, 'tcx>, + defining_uses: &[DefiningUse<'tcx>], + errors: &mut Vec<DeferredOpaqueTypeError<'tcx>>, +) { + let infcx = rcx.infcx; + let tcx = infcx.tcx; + let mut decls_modulo_regions: FxIndexMap<OpaqueTypeKey<'tcx>, (OpaqueTypeKey<'tcx>, Span)> = + FxIndexMap::default(); + for &DefiningUse { opaque_type_key, ref arg_regions, hidden_type } in defining_uses { + // After applying member constraints, we now map all regions in the hidden type + // to the `arg_regions` of this defining use. In case a region in the hidden type + // ended up not being equal to any such region, we error. + let hidden_type = + match hidden_type.try_fold_with(&mut ToArgRegionsFolder::new(rcx, arg_regions)) { + Ok(hidden_type) => hidden_type, + Err(r) => { + errors.push(DeferredOpaqueTypeError::UnexpectedHiddenRegion { + hidden_type, + opaque_type_key, + member_region: ty::Region::new_var(tcx, r), + }); + let guar = tcx.dcx().span_delayed_bug( + hidden_type.span, + "opaque type with non-universal region args", + ); + ty::OpaqueHiddenType::new_error(tcx, guar) + } + }; + + // Now that we mapped the member regions to their final value, + // map the arguments of the opaque type key back to the parameters + // of the opaque type definition. + let ty = infcx + .infer_opaque_definition_from_instantiation(opaque_type_key, hidden_type) + .unwrap_or_else(|_| { + Ty::new_error_with_message( + rcx.infcx.tcx, + hidden_type.span, + "deferred invalid opaque type args", + ) + }); + + // Sometimes, when the hidden type is an inference variable, it can happen that + // the hidden type becomes the opaque type itself. In this case, this was an opaque + // usage of the opaque type and we can ignore it. This check is mirrored in typeck's + // writeback. + if !rcx.infcx.tcx.use_typing_mode_borrowck() { + if let ty::Alias(ty::Opaque, alias_ty) = ty.kind() + && alias_ty.def_id == opaque_type_key.def_id.to_def_id() + && alias_ty.args == opaque_type_key.args + { + continue; + } + } + + // Check that all opaque types have the same region parameters if they have the same + // non-region parameters. This is necessary because within the new solver we perform + // various query operations modulo regions, and thus could unsoundly select some impls + // that don't hold. + // + // FIXME(-Znext-solver): This isn't necessary after all. We can remove this check again. + if let Some((prev_decl_key, prev_span)) = decls_modulo_regions.insert( + rcx.infcx.tcx.erase_regions(opaque_type_key), + (opaque_type_key, hidden_type.span), + ) && let Some((arg1, arg2)) = std::iter::zip( + prev_decl_key.iter_captured_args(infcx.tcx).map(|(_, arg)| arg), + opaque_type_key.iter_captured_args(infcx.tcx).map(|(_, arg)| arg), + ) + .find(|(arg1, arg2)| arg1 != arg2) + { + errors.push(DeferredOpaqueTypeError::LifetimeMismatchOpaqueParam( + LifetimeMismatchOpaqueParam { + arg: arg1, + prev: arg2, + span: prev_span, + prev_span: hidden_type.span, + }, + )); + } + root_cx.add_concrete_opaque_type( + opaque_type_key.def_id, + OpaqueHiddenType { span: hidden_type.span, ty }, + ); + } +} + +/// A folder to map the regions in the hidden type to their corresponding `arg_regions`. +/// +/// This folder has to differentiate between member regions and other regions in the hidden +/// type. Member regions have to be equal to one of the `arg_regions` while other regions simply +/// get treated as an existential region in the opaque if they are not. Existential +/// regions are currently represented using `'erased`. +struct ToArgRegionsFolder<'a, 'tcx> { + rcx: &'a RegionCtxt<'a, 'tcx>, + // When folding closure args or bivariant alias arguments, we simply + // ignore non-member regions. However, we still need to map member + // regions to their arg region even if its in a closure argument. + // + // See tests/ui/type-alias-impl-trait/closure_wf_outlives.rs for an example. + erase_unknown_regions: bool, + arg_regions: &'a [RegionVid], +} + +impl<'a, 'tcx> ToArgRegionsFolder<'a, 'tcx> { + fn new( + rcx: &'a RegionCtxt<'a, 'tcx>, + arg_regions: &'a [RegionVid], + ) -> ToArgRegionsFolder<'a, 'tcx> { + ToArgRegionsFolder { rcx, erase_unknown_regions: false, arg_regions } + } + + fn fold_non_member_arg(&mut self, arg: GenericArg<'tcx>) -> GenericArg<'tcx> { + let prev = self.erase_unknown_regions; + self.erase_unknown_regions = true; + let res = arg.try_fold_with(self).unwrap(); + self.erase_unknown_regions = prev; + res + } + + fn fold_closure_args( + &mut self, + def_id: DefId, + args: GenericArgsRef<'tcx>, + ) -> Result<GenericArgsRef<'tcx>, RegionVid> { + let generics = self.cx().generics_of(def_id); + self.cx().mk_args_from_iter(args.iter().enumerate().map(|(index, arg)| { + if index < generics.parent_count { + Ok(self.fold_non_member_arg(arg)) + } else { + arg.try_fold_with(self) + } + })) + } +} +impl<'tcx> FallibleTypeFolder<TyCtxt<'tcx>> for ToArgRegionsFolder<'_, 'tcx> { + type Error = RegionVid; + fn cx(&self) -> TyCtxt<'tcx> { + self.rcx.infcx.tcx + } + + fn try_fold_region(&mut self, r: Region<'tcx>) -> Result<Region<'tcx>, RegionVid> { + match r.kind() { + // ignore bound regions, keep visiting + ty::ReBound(_, _) => Ok(r), + _ => { + let r = r.as_var(); + if let Some(arg_region) = self + .arg_regions + .iter() + .copied() + .find(|&arg_vid| self.rcx.eval_equal(r, arg_vid)) + .and_then(|r| nll_var_to_universal_region(self.rcx, r)) + { + Ok(arg_region) + } else if self.erase_unknown_regions { + Ok(self.cx().lifetimes.re_erased) + } else { + Err(r) + } + } + } + } + + fn try_fold_ty(&mut self, ty: Ty<'tcx>) -> Result<Ty<'tcx>, RegionVid> { + if !ty.flags().intersects(ty::TypeFlags::HAS_FREE_REGIONS) { + return Ok(ty); + } + + let tcx = self.cx(); + Ok(match *ty.kind() { + ty::Closure(def_id, args) => { + Ty::new_closure(tcx, def_id, self.fold_closure_args(def_id, args)?) + } + + ty::CoroutineClosure(def_id, args) => { + Ty::new_coroutine_closure(tcx, def_id, self.fold_closure_args(def_id, args)?) + } + + ty::Coroutine(def_id, args) => { + Ty::new_coroutine(tcx, def_id, self.fold_closure_args(def_id, args)?) + } + + ty::Alias(kind, ty::AliasTy { def_id, args, .. }) + if let Some(variances) = tcx.opt_alias_variances(kind, def_id) => + { + let args = tcx.mk_args_from_iter(std::iter::zip(variances, args.iter()).map( + |(&v, s)| { + if v == ty::Bivariant { + Ok(self.fold_non_member_arg(s)) + } else { + s.try_fold_with(self) + } + }, + ))?; + ty::AliasTy::new_from_args(tcx, def_id, args).to_ty(tcx) + } + + _ => ty.try_super_fold_with(self)?, + }) + } +} + +/// This function is what actually applies member constraints to the borrowck +/// state. It is also responsible to check all uses of the opaques in their +/// defining scope. +/// +/// It does this by equating the hidden type of each use with the instantiated final +/// hidden type of the opaque. +fn apply_computed_concrete_opaque_types<'tcx>( + root_cx: &mut BorrowCheckRootCtxt<'tcx>, + infcx: &BorrowckInferCtxt<'tcx>, + body: &Body<'tcx>, + universal_regions: &UniversalRegions<'tcx>, + region_bound_pairs: &RegionBoundPairs<'tcx>, + known_type_outlives_obligations: &[ty::PolyTypeOutlivesPredicate<'tcx>], + constraints: &mut MirTypeckRegionConstraints<'tcx>, + opaque_types: &[(OpaqueTypeKey<'tcx>, OpaqueHiddenType<'tcx>)], +) -> Vec<DeferredOpaqueTypeError<'tcx>> { + let tcx = infcx.tcx; + let mut errors = Vec::new(); + for &(key, hidden_type) in opaque_types { + let Some(expected) = root_cx.get_concrete_opaque_type(key.def_id) else { + assert!(tcx.use_typing_mode_borrowck(), "non-defining use in defining scope"); + errors.push(DeferredOpaqueTypeError::NonDefiningUseInDefiningScope { + span: hidden_type.span, + opaque_type_key: key, + }); + let guar = tcx.dcx().span_delayed_bug( + hidden_type.span, + "non-defining use in the defining scope with no defining uses", + ); + root_cx.add_concrete_opaque_type(key.def_id, OpaqueHiddenType::new_error(tcx, guar)); + continue; + }; + + // We erase all non-member region of the opaque and need to treat these as existentials. + let expected = ty::fold_regions(tcx, expected.instantiate(tcx, key.args), |re, _dbi| { + match re.kind() { + ty::ReErased => infcx.next_nll_region_var( + NllRegionVariableOrigin::Existential { name: None }, + || crate::RegionCtxt::Existential(None), + ), + _ => re, + } + }); + + // We now simply equate the expected with the actual hidden type. + let locations = Locations::All(hidden_type.span); + if let Err(guar) = fully_perform_op_raw( + infcx, + body, + universal_regions, + region_bound_pairs, + known_type_outlives_obligations, + constraints, + locations, + ConstraintCategory::OpaqueType, + CustomTypeOp::new( + |ocx| { + let cause = ObligationCause::misc( + hidden_type.span, + body.source.def_id().expect_local(), + ); + // We need to normalize both types in the old solver before equatingt them. + let actual_ty = ocx.normalize(&cause, infcx.param_env, hidden_type.ty); + let expected_ty = ocx.normalize(&cause, infcx.param_env, expected.ty); + ocx.eq(&cause, infcx.param_env, actual_ty, expected_ty).map_err(|_| NoSolution) + }, + "equating opaque types", + ), + ) { + root_cx.add_concrete_opaque_type(key.def_id, OpaqueHiddenType::new_error(tcx, guar)); + } + } + errors +} + +/// In theory `apply_concrete_opaque_types` could introduce new uses of opaque types. +/// We do not check these new uses so this could be unsound. +/// +/// We detect any new uses and simply delay a bug if they occur. If this results in +/// an ICE we can properly handle this, but we haven't encountered any such test yet. +/// +/// See the related comment in `FnCtxt::detect_opaque_types_added_during_writeback`. +fn detect_opaque_types_added_while_handling_opaque_types<'tcx>( + infcx: &InferCtxt<'tcx>, + opaque_types_storage_num_entries: OpaqueTypeStorageEntries, +) { + for (key, hidden_type) in infcx + .inner + .borrow_mut() + .opaque_types() + .opaque_types_added_since(opaque_types_storage_num_entries) + { + let opaque_type_string = infcx.tcx.def_path_str(key.def_id); + let msg = format!("unexpected cyclic definition of `{opaque_type_string}`"); + infcx.dcx().span_delayed_bug(hidden_type.span, msg); + } + + let _ = infcx.take_opaque_types(); +} + +impl<'tcx> RegionInferenceContext<'tcx> { + /// Map the regions in the type to named regions. This is similar to what + /// `infer_opaque_types` does, but can infer any universal region, not only + /// ones from the args for the opaque type. It also doesn't double check + /// that the regions produced are in fact equal to the named region they are + /// replaced with. This is fine because this function is only to improve the + /// region names in error messages. + /// + /// This differs from `MirBorrowckCtxt::name_regions` since it is particularly + /// lax with mapping region vids that are *shorter* than a universal region to + /// that universal region. This is useful for member region constraints since + /// we want to suggest a universal region name to capture even if it's technically + /// not equal to the error region. + pub(crate) fn name_regions_for_member_constraint<T>(&self, tcx: TyCtxt<'tcx>, ty: T) -> T + where + T: TypeFoldable<TyCtxt<'tcx>>, + { + fold_regions(tcx, ty, |region, _| match region.kind() { + ty::ReVar(vid) => { + let scc = self.constraint_sccs.scc(vid); + + // Special handling of higher-ranked regions. + if !self.max_nameable_universe(scc).is_root() { + match self.scc_values.placeholders_contained_in(scc).enumerate().last() { + // If the region contains a single placeholder then they're equal. + Some((0, placeholder)) => { + return ty::Region::new_placeholder(tcx, placeholder); + } + + // Fallback: this will produce a cryptic error message. + _ => return region, + } + } + + // Find something that we can name + let upper_bound = self.approx_universal_upper_bound(vid); + if let Some(universal_region) = self.definitions[upper_bound].external_name { + return universal_region; + } + + // Nothing exact found, so we pick a named upper bound, if there's only one. + // If there's >1 universal region, then we probably are dealing w/ an intersection + // region which cannot be mapped back to a universal. + // FIXME: We could probably compute the LUB if there is one. + let scc = self.constraint_sccs.scc(vid); + let rev_scc_graph = + ReverseSccGraph::compute(&self.constraint_sccs, self.universal_regions()); + let upper_bounds: Vec<_> = rev_scc_graph + .upper_bounds(scc) + .filter_map(|vid| self.definitions[vid].external_name) + .filter(|r| !r.is_static()) + .collect(); + match &upper_bounds[..] { + [universal_region] => *universal_region, + _ => region, + } + } + _ => region, + }) + } +} + +#[extension(pub trait InferCtxtExt<'tcx>)] +impl<'tcx> InferCtxt<'tcx> { + /// Given the fully resolved, instantiated type for an opaque + /// type, i.e., the value of an inference variable like C1 or C2 + /// (*), computes the "definition type" for an opaque type + /// definition -- that is, the inferred value of `Foo1<'x>` or + /// `Foo2<'x>` that we would conceptually use in its definition: + /// ```ignore (illustrative) + /// type Foo1<'x> = impl Bar<'x> = AAA; // <-- this type AAA + /// type Foo2<'x> = impl Bar<'x> = BBB; // <-- or this type BBB + /// fn foo<'a, 'b>(..) -> (Foo1<'a>, Foo2<'b>) { .. } + /// ``` + /// Note that these values are defined in terms of a distinct set of + /// generic parameters (`'x` instead of `'a`) from C1 or C2. The main + /// purpose of this function is to do that translation. + /// + /// (*) C1 and C2 were introduced in the comments on + /// `register_member_constraints`. Read that comment for more context. + /// + /// # Parameters + /// + /// - `def_id`, the `impl Trait` type + /// - `args`, the args used to instantiate this opaque type + /// - `instantiated_ty`, the inferred type C1 -- fully resolved, lifted version of + /// `opaque_defn.concrete_ty` + #[instrument(level = "debug", skip(self))] + fn infer_opaque_definition_from_instantiation( + &self, + opaque_type_key: OpaqueTypeKey<'tcx>, + instantiated_ty: OpaqueHiddenType<'tcx>, + ) -> Result<Ty<'tcx>, NonDefiningUseReason<'tcx>> { + opaque_type_has_defining_use_args( + self, + opaque_type_key, + instantiated_ty.span, + DefiningScopeKind::MirBorrowck, + )?; + + let definition_ty = instantiated_ty + .remap_generic_params_to_declaration_params( + opaque_type_key, + self.tcx, + DefiningScopeKind::MirBorrowck, + ) + .ty; + + definition_ty.error_reported()?; + Ok(definition_ty) + } +} diff --git a/compiler/rustc_borrowck/src/region_infer/opaque_types/region_ctxt.rs b/compiler/rustc_borrowck/src/region_infer/opaque_types/region_ctxt.rs new file mode 100644 index 00000000000..88326e4eebf --- /dev/null +++ b/compiler/rustc_borrowck/src/region_infer/opaque_types/region_ctxt.rs @@ -0,0 +1,114 @@ +use std::rc::Rc; + +use rustc_data_structures::frozen::Frozen; +use rustc_index::IndexVec; +use rustc_infer::infer::NllRegionVariableOrigin; +use rustc_middle::ty::{RegionVid, UniverseIndex}; +use rustc_mir_dataflow::points::DenseLocationMap; + +use crate::BorrowckInferCtxt; +use crate::constraints::ConstraintSccIndex; +use crate::handle_placeholders::{SccAnnotations, region_definitions}; +use crate::region_infer::reverse_sccs::ReverseSccGraph; +use crate::region_infer::values::RegionValues; +use crate::region_infer::{ConstraintSccs, RegionDefinition, RegionTracker, Representative}; +use crate::type_check::MirTypeckRegionConstraints; +use crate::type_check::free_region_relations::UniversalRegionRelations; +use crate::universal_regions::UniversalRegions; + +/// A slimmed down version of [crate::region_infer::RegionInferenceContext] used +/// only by opaque type handling. +pub(super) struct RegionCtxt<'a, 'tcx> { + pub(super) infcx: &'a BorrowckInferCtxt<'tcx>, + pub(super) definitions: Frozen<IndexVec<RegionVid, RegionDefinition<'tcx>>>, + pub(super) universal_region_relations: &'a UniversalRegionRelations<'tcx>, + pub(super) constraint_sccs: ConstraintSccs, + pub(super) scc_annotations: IndexVec<ConstraintSccIndex, RegionTracker>, + pub(super) rev_scc_graph: ReverseSccGraph, + pub(super) scc_values: RegionValues<ConstraintSccIndex>, +} + +impl<'a, 'tcx> RegionCtxt<'a, 'tcx> { + /// Creates a new `RegionCtxt` used to compute defining opaque type uses. + /// + /// This does not yet propagate region values. This is instead done lazily + /// when applying member constraints. + pub(super) fn new( + infcx: &'a BorrowckInferCtxt<'tcx>, + universal_region_relations: &'a Frozen<UniversalRegionRelations<'tcx>>, + location_map: Rc<DenseLocationMap>, + constraints: &MirTypeckRegionConstraints<'tcx>, + ) -> RegionCtxt<'a, 'tcx> { + let universal_regions = &universal_region_relations.universal_regions; + let (definitions, _has_placeholders) = region_definitions(infcx, universal_regions); + let mut scc_annotations = SccAnnotations::init(&definitions); + let constraint_sccs = ConstraintSccs::new_with_annotation( + &constraints + .outlives_constraints + .graph(definitions.len()) + .region_graph(&constraints.outlives_constraints, universal_regions.fr_static), + &mut scc_annotations, + ); + let scc_annotations = scc_annotations.scc_to_annotation; + + // Unlike the `RegionInferenceContext`, we only care about free regions + // and fully ignore liveness and placeholders. + let placeholder_indices = Default::default(); + let mut scc_values = + RegionValues::new(location_map, universal_regions.len(), placeholder_indices); + for variable in definitions.indices() { + let scc = constraint_sccs.scc(variable); + match definitions[variable].origin { + NllRegionVariableOrigin::FreeRegion => { + scc_values.add_element(scc, variable); + } + _ => {} + } + } + + let rev_scc_graph = ReverseSccGraph::compute(&constraint_sccs, universal_regions); + RegionCtxt { + infcx, + definitions, + universal_region_relations, + constraint_sccs, + scc_annotations, + rev_scc_graph, + scc_values, + } + } + + pub(super) fn representative(&self, vid: RegionVid) -> Representative { + let scc = self.constraint_sccs.scc(vid); + self.scc_annotations[scc].representative + } + + pub(crate) fn max_placeholder_universe_reached( + &self, + scc: ConstraintSccIndex, + ) -> UniverseIndex { + self.scc_annotations[scc].max_placeholder_universe_reached() + } + + pub(super) fn universal_regions(&self) -> &UniversalRegions<'tcx> { + &self.universal_region_relations.universal_regions + } + + pub(super) fn eval_equal(&self, r1_vid: RegionVid, r2_vid: RegionVid) -> bool { + let r1 = self.constraint_sccs.scc(r1_vid); + let r2 = self.constraint_sccs.scc(r2_vid); + + if r1 == r2 { + return true; + } + + let universal_outlives = |sub, sup| { + self.scc_values.universal_regions_outlived_by(sub).all(|r1| { + self.scc_values + .universal_regions_outlived_by(sup) + .any(|r2| self.universal_region_relations.outlives(r2, r1)) + }) + }; + universal_outlives(r1, r2) && universal_outlives(r2, r1) + } +} diff --git a/compiler/rustc_borrowck/src/region_infer/reverse_sccs.rs b/compiler/rustc_borrowck/src/region_infer/reverse_sccs.rs index 604265f8940..e8da85eccef 100644 --- a/compiler/rustc_borrowck/src/region_infer/reverse_sccs.rs +++ b/compiler/rustc_borrowck/src/region_infer/reverse_sccs.rs @@ -5,7 +5,6 @@ use rustc_data_structures::graph; use rustc_data_structures::graph::vec_graph::VecGraph; use rustc_middle::ty::RegionVid; -use crate::RegionInferenceContext; use crate::constraints::ConstraintSccIndex; use crate::region_infer::ConstraintSccs; use crate::universal_regions::UniversalRegions; @@ -57,12 +56,3 @@ impl ReverseSccGraph { .filter(move |r| duplicates.insert(*r)) } } - -impl RegionInferenceContext<'_> { - /// Return the reverse graph of the region SCCs, initialising it if needed. - pub(super) fn reverse_scc_graph(&self) -> &ReverseSccGraph { - self.rev_scc_graph.get_or_init(|| { - ReverseSccGraph::compute(&self.constraint_sccs, self.universal_regions()) - }) - } -} diff --git a/compiler/rustc_borrowck/src/root_cx.rs b/compiler/rustc_borrowck/src/root_cx.rs index 9b1d12aede5..4e90ae391bb 100644 --- a/compiler/rustc_borrowck/src/root_cx.rs +++ b/compiler/rustc_borrowck/src/root_cx.rs @@ -2,7 +2,7 @@ use rustc_abi::FieldIdx; use rustc_data_structures::fx::FxHashMap; use rustc_hir::def_id::LocalDefId; use rustc_middle::bug; -use rustc_middle::ty::{OpaqueHiddenType, Ty, TyCtxt, TypeVisitableExt}; +use rustc_middle::ty::{EarlyBinder, OpaqueHiddenType, Ty, TyCtxt, TypeVisitableExt}; use rustc_span::ErrorGuaranteed; use smallvec::SmallVec; @@ -19,7 +19,7 @@ pub(super) struct BorrowCheckRootCtxt<'tcx> { tainted_by_errors: Option<ErrorGuaranteed>, /// This should be `None` during normal compilation. See [`crate::consumers`] for more /// information on how this is used. - pub(crate) consumer: Option<BorrowckConsumer<'tcx>>, + pub consumer: Option<BorrowckConsumer<'tcx>>, } impl<'tcx> BorrowCheckRootCtxt<'tcx> { @@ -38,6 +38,10 @@ impl<'tcx> BorrowCheckRootCtxt<'tcx> { } } + pub(super) fn root_def_id(&self) -> LocalDefId { + self.root_def_id + } + /// Collect all defining uses of opaque types inside of this typeck root. This /// expects the hidden type to be mapped to the definition parameters of the opaque /// and errors if we end up with distinct hidden types. @@ -67,6 +71,13 @@ impl<'tcx> BorrowCheckRootCtxt<'tcx> { } } + pub(super) fn get_concrete_opaque_type( + &mut self, + def_id: LocalDefId, + ) -> Option<EarlyBinder<'tcx, OpaqueHiddenType<'tcx>>> { + self.concrete_opaque_types.0.get(&def_id).map(|ty| EarlyBinder::bind(*ty)) + } + pub(super) fn set_tainted_by_errors(&mut self, guar: ErrorGuaranteed) { self.tainted_by_errors = Some(guar); } diff --git a/compiler/rustc_borrowck/src/type_check/canonical.rs b/compiler/rustc_borrowck/src/type_check/canonical.rs index b3fa786a517..2627ed899a9 100644 --- a/compiler/rustc_borrowck/src/type_check/canonical.rs +++ b/compiler/rustc_borrowck/src/type_check/canonical.rs @@ -2,8 +2,9 @@ use std::fmt; use rustc_errors::ErrorGuaranteed; use rustc_infer::infer::canonical::Canonical; +use rustc_infer::infer::outlives::env::RegionBoundPairs; use rustc_middle::bug; -use rustc_middle::mir::ConstraintCategory; +use rustc_middle::mir::{Body, ConstraintCategory}; use rustc_middle::ty::{self, Ty, TyCtxt, TypeFoldable, Upcast}; use rustc_span::Span; use rustc_span::def_id::DefId; @@ -14,7 +15,68 @@ use rustc_trait_selection::traits::query::type_op::{self, TypeOpOutput}; use tracing::{debug, instrument}; use super::{Locations, NormalizeLocation, TypeChecker}; +use crate::BorrowckInferCtxt; use crate::diagnostics::ToUniverseInfo; +use crate::type_check::{MirTypeckRegionConstraints, constraint_conversion}; +use crate::universal_regions::UniversalRegions; + +#[instrument(skip(infcx, constraints, op), level = "trace")] +pub(crate) fn fully_perform_op_raw<'tcx, R: fmt::Debug, Op>( + infcx: &BorrowckInferCtxt<'tcx>, + body: &Body<'tcx>, + universal_regions: &UniversalRegions<'tcx>, + region_bound_pairs: &RegionBoundPairs<'tcx>, + known_type_outlives_obligations: &[ty::PolyTypeOutlivesPredicate<'tcx>], + constraints: &mut MirTypeckRegionConstraints<'tcx>, + locations: Locations, + category: ConstraintCategory<'tcx>, + op: Op, +) -> Result<R, ErrorGuaranteed> +where + Op: type_op::TypeOp<'tcx, Output = R>, + Op::ErrorInfo: ToUniverseInfo<'tcx>, +{ + let old_universe = infcx.universe(); + + let TypeOpOutput { output, constraints: query_constraints, error_info } = + op.fully_perform(infcx, infcx.root_def_id, locations.span(body))?; + if cfg!(debug_assertions) { + let data = infcx.take_and_reset_region_constraints(); + if !data.is_empty() { + panic!("leftover region constraints: {data:#?}"); + } + } + + debug!(?output, ?query_constraints); + + if let Some(data) = query_constraints { + constraint_conversion::ConstraintConversion::new( + infcx, + universal_regions, + region_bound_pairs, + known_type_outlives_obligations, + locations, + locations.span(body), + category, + constraints, + ) + .convert_all(data); + } + + // If the query has created new universes and errors are going to be emitted, register the + // cause of these new universes for improved diagnostics. + let universe = infcx.universe(); + if old_universe != universe + && let Some(error_info) = error_info + { + let universe_info = error_info.to_universe_info(old_universe); + for u in (old_universe + 1)..=universe { + constraints.universe_causes.insert(u, universe_info.clone()); + } + } + + Ok(output) +} impl<'a, 'tcx> TypeChecker<'a, 'tcx> { /// Given some operation `op` that manipulates types, proves @@ -38,36 +100,17 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { Op: type_op::TypeOp<'tcx, Output = R>, Op::ErrorInfo: ToUniverseInfo<'tcx>, { - let old_universe = self.infcx.universe(); - - let TypeOpOutput { output, constraints, error_info } = - op.fully_perform(self.infcx, locations.span(self.body))?; - if cfg!(debug_assertions) { - let data = self.infcx.take_and_reset_region_constraints(); - if !data.is_empty() { - panic!("leftover region constraints: {data:#?}"); - } - } - - debug!(?output, ?constraints); - - if let Some(data) = constraints { - self.push_region_constraints(locations, category, data); - } - - // If the query has created new universes and errors are going to be emitted, register the - // cause of these new universes for improved diagnostics. - let universe = self.infcx.universe(); - if old_universe != universe - && let Some(error_info) = error_info - { - let universe_info = error_info.to_universe_info(old_universe); - for u in (old_universe + 1)..=universe { - self.constraints.universe_causes.insert(u, universe_info.clone()); - } - } - - Ok(output) + fully_perform_op_raw( + self.infcx, + self.body, + self.universal_regions, + self.region_bound_pairs, + self.known_type_outlives_obligations, + self.constraints, + locations, + category, + op, + ) } pub(super) fn instantiate_canonical<T>( diff --git a/compiler/rustc_borrowck/src/type_check/constraint_conversion.rs b/compiler/rustc_borrowck/src/type_check/constraint_conversion.rs index 9bb96b94506..703223e2e54 100644 --- a/compiler/rustc_borrowck/src/type_check/constraint_conversion.rs +++ b/compiler/rustc_borrowck/src/type_check/constraint_conversion.rs @@ -1,10 +1,10 @@ use rustc_data_structures::fx::FxHashSet; use rustc_hir::def_id::LocalDefId; +use rustc_infer::infer::SubregionOrigin; use rustc_infer::infer::canonical::QueryRegionConstraints; use rustc_infer::infer::outlives::env::RegionBoundPairs; use rustc_infer::infer::outlives::obligations::{TypeOutlives, TypeOutlivesDelegate}; use rustc_infer::infer::region_constraints::{GenericKind, VerifyBound}; -use rustc_infer::infer::{InferCtxt, SubregionOrigin}; use rustc_infer::traits::query::type_op::DeeplyNormalize; use rustc_middle::bug; use rustc_middle::ty::{ @@ -18,10 +18,12 @@ use crate::constraints::OutlivesConstraint; use crate::region_infer::TypeTest; use crate::type_check::{Locations, MirTypeckRegionConstraints}; use crate::universal_regions::UniversalRegions; -use crate::{ClosureOutlivesSubject, ClosureRegionRequirements, ConstraintCategory}; +use crate::{ + BorrowckInferCtxt, ClosureOutlivesSubject, ClosureRegionRequirements, ConstraintCategory, +}; pub(crate) struct ConstraintConversion<'a, 'tcx> { - infcx: &'a InferCtxt<'tcx>, + infcx: &'a BorrowckInferCtxt<'tcx>, universal_regions: &'a UniversalRegions<'tcx>, /// Each RBP `GK: 'a` is assumed to be true. These encode /// relationships like `T: 'a` that are added via implicit bounds @@ -34,7 +36,6 @@ pub(crate) struct ConstraintConversion<'a, 'tcx> { /// logic expecting to see (e.g.) `ReStatic`, and if we supplied /// our special inference variable there, we would mess that up. region_bound_pairs: &'a RegionBoundPairs<'tcx>, - param_env: ty::ParamEnv<'tcx>, known_type_outlives_obligations: &'a [ty::PolyTypeOutlivesPredicate<'tcx>], locations: Locations, span: Span, @@ -45,10 +46,9 @@ pub(crate) struct ConstraintConversion<'a, 'tcx> { impl<'a, 'tcx> ConstraintConversion<'a, 'tcx> { pub(crate) fn new( - infcx: &'a InferCtxt<'tcx>, + infcx: &'a BorrowckInferCtxt<'tcx>, universal_regions: &'a UniversalRegions<'tcx>, region_bound_pairs: &'a RegionBoundPairs<'tcx>, - param_env: ty::ParamEnv<'tcx>, known_type_outlives_obligations: &'a [ty::PolyTypeOutlivesPredicate<'tcx>], locations: Locations, span: Span, @@ -59,7 +59,6 @@ impl<'a, 'tcx> ConstraintConversion<'a, 'tcx> { infcx, universal_regions, region_bound_pairs, - param_env, known_type_outlives_obligations, locations, span, @@ -286,8 +285,11 @@ impl<'a, 'tcx> ConstraintConversion<'a, 'tcx> { ConstraintCategory<'tcx>, )>, ) -> Ty<'tcx> { - match self.param_env.and(DeeplyNormalize { value: ty }).fully_perform(self.infcx, self.span) - { + match self.infcx.param_env.and(DeeplyNormalize { value: ty }).fully_perform( + self.infcx, + self.infcx.root_def_id, + self.span, + ) { Ok(TypeOpOutput { output: ty, constraints, .. }) => { // FIXME(higher_ranked_auto): What should we do with the assumptions here? if let Some(QueryRegionConstraints { outlives, assumptions: _ }) = constraints { diff --git a/compiler/rustc_borrowck/src/type_check/free_region_relations.rs b/compiler/rustc_borrowck/src/type_check/free_region_relations.rs index f642d34ea67..7bf2df91470 100644 --- a/compiler/rustc_borrowck/src/type_check/free_region_relations.rs +++ b/compiler/rustc_borrowck/src/type_check/free_region_relations.rs @@ -2,9 +2,9 @@ use rustc_data_structures::frozen::Frozen; use rustc_data_structures::transitive_relation::{TransitiveRelation, TransitiveRelationBuilder}; use rustc_hir::def::DefKind; use rustc_infer::infer::canonical::QueryRegionConstraints; +use rustc_infer::infer::outlives; use rustc_infer::infer::outlives::env::RegionBoundPairs; use rustc_infer::infer::region_constraints::GenericKind; -use rustc_infer::infer::{InferCtxt, outlives}; use rustc_infer::traits::query::type_op::DeeplyNormalize; use rustc_middle::mir::ConstraintCategory; use rustc_middle::traits::query::OutlivesBound; @@ -14,6 +14,7 @@ use rustc_trait_selection::traits::query::type_op::{self, TypeOp}; use tracing::{debug, instrument}; use type_op::TypeOpOutput; +use crate::BorrowckInferCtxt; use crate::type_check::{Locations, MirTypeckRegionConstraints, constraint_conversion}; use crate::universal_regions::UniversalRegions; @@ -47,14 +48,12 @@ pub(crate) struct CreateResult<'tcx> { } pub(crate) fn create<'tcx>( - infcx: &InferCtxt<'tcx>, - param_env: ty::ParamEnv<'tcx>, + infcx: &BorrowckInferCtxt<'tcx>, universal_regions: UniversalRegions<'tcx>, constraints: &mut MirTypeckRegionConstraints<'tcx>, ) -> CreateResult<'tcx> { UniversalRegionRelationsBuilder { infcx, - param_env, constraints, universal_regions, region_bound_pairs: Default::default(), @@ -177,8 +176,7 @@ impl UniversalRegionRelations<'_> { } struct UniversalRegionRelationsBuilder<'a, 'tcx> { - infcx: &'a InferCtxt<'tcx>, - param_env: ty::ParamEnv<'tcx>, + infcx: &'a BorrowckInferCtxt<'tcx>, universal_regions: UniversalRegions<'tcx>, constraints: &'a mut MirTypeckRegionConstraints<'tcx>, @@ -205,7 +203,7 @@ impl<'tcx> UniversalRegionRelationsBuilder<'_, 'tcx> { // Insert the `'a: 'b` we know from the predicates. // This does not consider the type-outlives. - let param_env = self.param_env; + let param_env = self.infcx.param_env; self.add_outlives_bounds(outlives::explicit_outlives_bounds(param_env)); // - outlives is reflexive, so `'r: 'r` for every region `'r` @@ -263,7 +261,7 @@ impl<'tcx> UniversalRegionRelationsBuilder<'_, 'tcx> { let TypeOpOutput { output: norm_ty, constraints: constraints_normalize, .. } = param_env .and(DeeplyNormalize { value: ty }) - .fully_perform(self.infcx, span) + .fully_perform(self.infcx, self.infcx.root_def_id, span) .unwrap_or_else(|guar| TypeOpOutput { output: Ty::new_error(self.infcx.tcx, guar), constraints: None, @@ -298,8 +296,9 @@ impl<'tcx> UniversalRegionRelationsBuilder<'_, 'tcx> { // Add implied bounds from impl header. if matches!(tcx.def_kind(defining_ty_def_id), DefKind::AssocFn | DefKind::AssocConst) { for &(ty, _) in tcx.assumed_wf_types(tcx.local_parent(defining_ty_def_id)) { - let result: Result<_, ErrorGuaranteed> = - param_env.and(DeeplyNormalize { value: ty }).fully_perform(self.infcx, span); + let result: Result<_, ErrorGuaranteed> = param_env + .and(DeeplyNormalize { value: ty }) + .fully_perform(self.infcx, self.infcx.root_def_id, span); let Ok(TypeOpOutput { output: norm_ty, constraints: c, .. }) = result else { continue; }; @@ -318,7 +317,6 @@ impl<'tcx> UniversalRegionRelationsBuilder<'_, 'tcx> { self.infcx, &self.universal_regions, &self.region_bound_pairs, - param_env, &known_type_outlives_obligations, Locations::All(span), span, @@ -353,10 +351,11 @@ impl<'tcx> UniversalRegionRelationsBuilder<'_, 'tcx> { output: normalized_outlives, constraints: constraints_normalize, error_info: _, - }) = self - .param_env - .and(DeeplyNormalize { value: outlives }) - .fully_perform(self.infcx, span) + }) = self.infcx.param_env.and(DeeplyNormalize { value: outlives }).fully_perform( + self.infcx, + self.infcx.root_def_id, + span, + ) else { self.infcx.dcx().delayed_bug(format!("could not normalize {outlives:?}")); return; @@ -381,9 +380,10 @@ impl<'tcx> UniversalRegionRelationsBuilder<'_, 'tcx> { span: Span, ) -> Option<&'tcx QueryRegionConstraints<'tcx>> { let TypeOpOutput { output: bounds, constraints, .. } = self + .infcx .param_env .and(type_op::ImpliedOutlivesBounds { ty }) - .fully_perform(self.infcx, span) + .fully_perform(self.infcx, self.infcx.root_def_id, span) .map_err(|_: ErrorGuaranteed| debug!("failed to compute implied bounds {:?}", ty)) .ok()?; debug!(?bounds, ?constraints); diff --git a/compiler/rustc_borrowck/src/type_check/liveness/trace.rs b/compiler/rustc_borrowck/src/type_check/liveness/trace.rs index 5d30fa71e92..b704d8f0a76 100644 --- a/compiler/rustc_borrowck/src/type_check/liveness/trace.rs +++ b/compiler/rustc_borrowck/src/type_check/liveness/trace.rs @@ -640,7 +640,7 @@ impl<'tcx> LivenessContext<'_, '_, 'tcx> { let op = typeck.infcx.param_env.and(DropckOutlives { dropped_ty }); - match op.fully_perform(typeck.infcx, DUMMY_SP) { + match op.fully_perform(typeck.infcx, typeck.root_cx.root_def_id(), DUMMY_SP) { Ok(TypeOpOutput { output, constraints, .. }) => { DropData { dropck_result: output, region_constraint_data: constraints } } diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs index a960b96b91c..0d363935f14 100644 --- a/compiler/rustc_borrowck/src/type_check/mod.rs +++ b/compiler/rustc_borrowck/src/type_check/mod.rs @@ -26,8 +26,7 @@ use rustc_middle::ty::adjustment::PointerCoercion; use rustc_middle::ty::cast::CastTy; use rustc_middle::ty::{ self, CanonicalUserTypeAnnotation, CanonicalUserTypeAnnotations, CoroutineArgsExt, - GenericArgsRef, OpaqueHiddenType, OpaqueTypeKey, RegionVid, Ty, TyCtxt, TypeVisitableExt, - UserArgs, UserTypeAnnotationIndex, fold_regions, + GenericArgsRef, Ty, TyCtxt, TypeVisitableExt, UserArgs, UserTypeAnnotationIndex, fold_regions, }; use rustc_middle::{bug, span_bug}; use rustc_mir_dataflow::move_paths::MoveData; @@ -35,6 +34,7 @@ use rustc_mir_dataflow::points::DenseLocationMap; use rustc_span::def_id::CRATE_DEF_ID; use rustc_span::source_map::Spanned; use rustc_span::{Span, sym}; +use rustc_trait_selection::infer::InferCtxtExt; use rustc_trait_selection::traits::query::type_op::custom::scrape_region_constraints; use rustc_trait_selection::traits::query::type_op::{TypeOp, TypeOpOutput}; use tracing::{debug, instrument, trace}; @@ -42,7 +42,6 @@ use tracing::{debug, instrument, trace}; use crate::borrow_set::BorrowSet; use crate::constraints::{OutlivesConstraint, OutlivesConstraintSet}; use crate::diagnostics::UniverseInfo; -use crate::member_constraints::MemberConstraintSet; use crate::polonius::legacy::{PoloniusFacts, PoloniusLocationTable}; use crate::polonius::{PoloniusContext, PoloniusLivenessContext}; use crate::region_infer::TypeTest; @@ -67,12 +66,11 @@ macro_rules! span_mirbug { }) } -mod canonical; +pub(crate) mod canonical; mod constraint_conversion; pub(crate) mod free_region_relations; mod input_output; pub(crate) mod liveness; -mod opaque_types; mod relate_tys; /// Type checks the given `mir` in the context of the inference @@ -114,7 +112,6 @@ pub(crate) fn type_check<'tcx>( placeholder_index_to_region: IndexVec::default(), liveness_constraints: LivenessValues::with_specific_points(Rc::clone(&location_map)), outlives_constraints: OutlivesConstraintSet::default(), - member_constraints: MemberConstraintSet::default(), type_tests: Vec::default(), universe_causes: FxIndexMap::default(), }; @@ -124,7 +121,7 @@ pub(crate) fn type_check<'tcx>( region_bound_pairs, normalized_inputs_and_output, known_type_outlives_obligations, - } = free_region_relations::create(infcx, infcx.param_env, universal_regions, &mut constraints); + } = free_region_relations::create(infcx, universal_regions, &mut constraints); let pre_obligations = infcx.take_registered_region_obligations(); assert!( @@ -170,9 +167,6 @@ pub(crate) fn type_check<'tcx>( liveness::generate(&mut typeck, &location_map, move_data); - let opaque_type_values = - opaque_types::take_opaques_and_register_member_constraints(&mut typeck); - // We're done with typeck, we can finalize the polonius liveness context for region inference. let polonius_context = typeck.polonius_liveness.take().map(|liveness_context| { PoloniusContext::create_from_liveness( @@ -187,7 +181,6 @@ pub(crate) fn type_check<'tcx>( if let Some(guar) = universal_region_relations.universal_regions.encountered_re_error() { debug!("encountered an error region; removing constraints!"); constraints.outlives_constraints = Default::default(); - constraints.member_constraints = Default::default(); constraints.type_tests = Default::default(); root_cx.set_tainted_by_errors(guar); infcx.set_tainted_by_errors(guar); @@ -196,7 +189,8 @@ pub(crate) fn type_check<'tcx>( MirTypeckResults { constraints, universal_region_relations, - opaque_type_values, + region_bound_pairs, + known_type_outlives_obligations, polonius_context, } } @@ -245,7 +239,8 @@ struct TypeChecker<'a, 'tcx> { pub(crate) struct MirTypeckResults<'tcx> { pub(crate) constraints: MirTypeckRegionConstraints<'tcx>, pub(crate) universal_region_relations: Frozen<UniversalRegionRelations<'tcx>>, - pub(crate) opaque_type_values: FxIndexMap<OpaqueTypeKey<'tcx>, OpaqueHiddenType<'tcx>>, + pub(crate) region_bound_pairs: Frozen<RegionBoundPairs<'tcx>>, + pub(crate) known_type_outlives_obligations: Frozen<Vec<ty::PolyTypeOutlivesPredicate<'tcx>>>, pub(crate) polonius_context: Option<PoloniusContext>, } @@ -277,8 +272,6 @@ pub(crate) struct MirTypeckRegionConstraints<'tcx> { pub(crate) outlives_constraints: OutlivesConstraintSet<'tcx>, - pub(crate) member_constraints: MemberConstraintSet<'tcx, RegionVid>, - pub(crate) universe_causes: FxIndexMap<ty::UniverseIndex, UniverseInfo<'tcx>>, pub(crate) type_tests: Vec<TypeTest<'tcx>>, @@ -287,7 +280,7 @@ pub(crate) struct MirTypeckRegionConstraints<'tcx> { impl<'tcx> MirTypeckRegionConstraints<'tcx> { /// Creates a `Region` for a given `PlaceholderRegion`, or returns the /// region that corresponds to a previously created one. - fn placeholder_region( + pub(crate) fn placeholder_region( &mut self, infcx: &InferCtxt<'tcx>, placeholder: ty::PlaceholderRegion, @@ -380,14 +373,6 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { self.body } - fn to_region_vid(&mut self, r: ty::Region<'tcx>) -> RegionVid { - if let ty::RePlaceholder(placeholder) = r.kind() { - self.constraints.placeholder_region(self.infcx, placeholder).as_var() - } else { - self.universal_regions.to_region_vid(r) - } - } - fn unsized_feature_enabled(&self) -> bool { self.tcx().features().unsized_fn_params() } @@ -424,7 +409,6 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { self.infcx, self.universal_regions, self.region_bound_pairs, - self.infcx.param_env, self.known_type_outlives_obligations, locations, locations.span(self.body), @@ -1471,68 +1455,79 @@ impl<'a, 'tcx> Visitor<'tcx> for TypeChecker<'a, 'tcx> { } CastKind::PtrToPtr => { let ty_from = op.ty(self.body, tcx); - let cast_ty_from = CastTy::from_ty(ty_from); - let cast_ty_to = CastTy::from_ty(*ty); - match (cast_ty_from, cast_ty_to) { - (Some(CastTy::Ptr(src)), Some(CastTy::Ptr(dst))) => { - let src_tail = self.struct_tail(src.ty, location); - let dst_tail = self.struct_tail(dst.ty, location); - - // This checks (lifetime part of) vtable validity for pointer casts, - // which is irrelevant when there are aren't principal traits on - // both sides (aka only auto traits). - // - // Note that other checks (such as denying `dyn Send` -> `dyn - // Debug`) are in `rustc_hir_typeck`. - if let ty::Dynamic(src_tty, _src_lt, ty::Dyn) = *src_tail.kind() - && let ty::Dynamic(dst_tty, dst_lt, ty::Dyn) = *dst_tail.kind() - && src_tty.principal().is_some() - && dst_tty.principal().is_some() - { - // Remove auto traits. - // Auto trait checks are handled in `rustc_hir_typeck` as FCW. - let src_obj = Ty::new_dynamic( - tcx, - tcx.mk_poly_existential_predicates( - &src_tty.without_auto_traits().collect::<Vec<_>>(), - ), - // FIXME: Once we disallow casting `*const dyn Trait + 'short` - // to `*const dyn Trait + 'long`, then this can just be `src_lt`. - dst_lt, - ty::Dyn, - ); - let dst_obj = Ty::new_dynamic( - tcx, - tcx.mk_poly_existential_predicates( - &dst_tty.without_auto_traits().collect::<Vec<_>>(), - ), - dst_lt, - ty::Dyn, - ); - - debug!(?src_tty, ?dst_tty, ?src_obj, ?dst_obj); - - self.sub_types( - src_obj, - dst_obj, - location.to_locations(), - ConstraintCategory::Cast { - is_implicit_coercion: false, - unsize_to: None, - }, - ) - .unwrap(); - } - } - _ => { - span_mirbug!( - self, - rvalue, - "Invalid PtrToPtr cast {:?} -> {:?}", - ty_from, - ty - ) - } + let Some(CastTy::Ptr(src)) = CastTy::from_ty(ty_from) else { + unreachable!(); + }; + let Some(CastTy::Ptr(dst)) = CastTy::from_ty(*ty) else { + unreachable!(); + }; + + if self.infcx.type_is_sized_modulo_regions(self.infcx.param_env, dst.ty) { + // Wide to thin ptr cast. This may even occur in an env with + // impossible predicates, such as `where dyn Trait: Sized`. + // In this case, we don't want to fall into the case below, + // since the types may not actually be equatable, but it's + // fine to perform this operation in an impossible env. + let trait_ref = ty::TraitRef::new( + tcx, + tcx.require_lang_item(LangItem::Sized, self.last_span), + [dst.ty], + ); + self.prove_trait_ref( + trait_ref, + location.to_locations(), + ConstraintCategory::Cast { + is_implicit_coercion: true, + unsize_to: None, + }, + ); + } else if let ty::Dynamic(src_tty, _src_lt, ty::Dyn) = + *self.struct_tail(src.ty, location).kind() + && let ty::Dynamic(dst_tty, dst_lt, ty::Dyn) = + *self.struct_tail(dst.ty, location).kind() + && src_tty.principal().is_some() + && dst_tty.principal().is_some() + { + // This checks (lifetime part of) vtable validity for pointer casts, + // which is irrelevant when there are aren't principal traits on + // both sides (aka only auto traits). + // + // Note that other checks (such as denying `dyn Send` -> `dyn + // Debug`) are in `rustc_hir_typeck`. + + // Remove auto traits. + // Auto trait checks are handled in `rustc_hir_typeck` as FCW. + let src_obj = Ty::new_dynamic( + tcx, + tcx.mk_poly_existential_predicates( + &src_tty.without_auto_traits().collect::<Vec<_>>(), + ), + // FIXME: Once we disallow casting `*const dyn Trait + 'short` + // to `*const dyn Trait + 'long`, then this can just be `src_lt`. + dst_lt, + ty::Dyn, + ); + let dst_obj = Ty::new_dynamic( + tcx, + tcx.mk_poly_existential_predicates( + &dst_tty.without_auto_traits().collect::<Vec<_>>(), + ), + dst_lt, + ty::Dyn, + ); + + debug!(?src_tty, ?dst_tty, ?src_obj, ?dst_obj); + + self.sub_types( + src_obj, + dst_obj, + location.to_locations(), + ConstraintCategory::Cast { + is_implicit_coercion: false, + unsize_to: None, + }, + ) + .unwrap(); } } CastKind::Transmute => { @@ -1895,7 +1890,7 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { if !output_ty .is_privately_uninhabited(self.tcx(), self.infcx.typing_env(self.infcx.param_env)) { - span_mirbug!(self, term, "call to converging function {:?} w/o dest", sig); + span_mirbug!(self, term, "call to non-diverging function {:?} w/o dest", sig); } } else { let dest_ty = destination.ty(self.body, tcx).ty; @@ -2474,12 +2469,12 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { args: GenericArgsRef<'tcx>, locations: Locations, ) -> ty::InstantiatedPredicates<'tcx> { + let root_def_id = self.root_cx.root_def_id(); if let Some(closure_requirements) = &self.root_cx.closure_requirements(def_id) { constraint_conversion::ConstraintConversion::new( self.infcx, self.universal_regions, self.region_bound_pairs, - self.infcx.param_env, self.known_type_outlives_obligations, locations, self.body.span, // irrelevant; will be overridden. @@ -2489,9 +2484,8 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { .apply_closure_requirements(closure_requirements, def_id, args); } - // Now equate closure args to regions inherited from `typeck_root_def_id`. Fixes #98589. - let typeck_root_def_id = tcx.typeck_root_def_id(self.body.source.def_id()); - let typeck_root_args = ty::GenericArgs::identity_for_item(tcx, typeck_root_def_id); + // Now equate closure args to regions inherited from `root_def_id`. Fixes #98589. + let typeck_root_args = ty::GenericArgs::identity_for_item(tcx, root_def_id); let parent_args = match tcx.def_kind(def_id) { // We don't want to dispatch on 3 different kind of closures here, so take @@ -2566,17 +2560,14 @@ impl<'tcx> TypeOp<'tcx> for InstantiateOpaqueType<'tcx> { fn fully_perform( mut self, infcx: &InferCtxt<'tcx>, + root_def_id: LocalDefId, span: Span, ) -> Result<TypeOpOutput<'tcx, Self>, ErrorGuaranteed> { - let (mut output, region_constraints) = scrape_region_constraints( - infcx, - |ocx| { + let (mut output, region_constraints) = + scrape_region_constraints(infcx, root_def_id, "InstantiateOpaqueType", span, |ocx| { ocx.register_obligations(self.obligations.clone()); Ok(()) - }, - "InstantiateOpaqueType", - span, - )?; + })?; self.region_constraints = Some(region_constraints); output.error_info = Some(self); Ok(output) diff --git a/compiler/rustc_borrowck/src/type_check/opaque_types.rs b/compiler/rustc_borrowck/src/type_check/opaque_types.rs deleted file mode 100644 index 5a422483eef..00000000000 --- a/compiler/rustc_borrowck/src/type_check/opaque_types.rs +++ /dev/null @@ -1,333 +0,0 @@ -use std::iter; - -use rustc_data_structures::fx::FxIndexMap; -use rustc_middle::span_bug; -use rustc_middle::ty::{ - self, GenericArgKind, OpaqueHiddenType, OpaqueTypeKey, Ty, TyCtxt, TypeSuperVisitable, - TypeVisitable, TypeVisitableExt, TypeVisitor, fold_regions, -}; -use tracing::{debug, trace}; - -use super::{MemberConstraintSet, TypeChecker}; - -/// Once we're done with typechecking the body, we take all the opaque types -/// defined by this function and add their 'member constraints'. -pub(super) fn take_opaques_and_register_member_constraints<'tcx>( - typeck: &mut TypeChecker<'_, 'tcx>, -) -> FxIndexMap<OpaqueTypeKey<'tcx>, OpaqueHiddenType<'tcx>> { - let infcx = typeck.infcx; - // Annoying: to invoke `typeck.to_region_vid`, we need access to - // `typeck.constraints`, but we also want to be mutating - // `typeck.member_constraints`. For now, just swap out the value - // we want and replace at the end. - let mut member_constraints = std::mem::take(&mut typeck.constraints.member_constraints); - let opaque_types = infcx - .take_opaque_types() - .into_iter() - .map(|(opaque_type_key, hidden_type)| { - let hidden_type = infcx.resolve_vars_if_possible(hidden_type); - register_member_constraints( - typeck, - &mut member_constraints, - opaque_type_key, - hidden_type, - ); - trace!("finalized opaque type {:?} to {:#?}", opaque_type_key, hidden_type.ty.kind()); - if hidden_type.has_non_region_infer() { - span_bug!(hidden_type.span, "could not resolve {:?}", hidden_type.ty); - } - - // Convert all regions to nll vars. - let (opaque_type_key, hidden_type) = - fold_regions(infcx.tcx, (opaque_type_key, hidden_type), |r, _| { - ty::Region::new_var(infcx.tcx, typeck.to_region_vid(r)) - }); - - (opaque_type_key, hidden_type) - }) - .collect(); - assert!(typeck.constraints.member_constraints.is_empty()); - typeck.constraints.member_constraints = member_constraints; - opaque_types -} - -/// Given the map `opaque_types` containing the opaque -/// `impl Trait` types whose underlying, hidden types are being -/// inferred, this method adds constraints to the regions -/// appearing in those underlying hidden types to ensure that they -/// at least do not refer to random scopes within the current -/// function. These constraints are not (quite) sufficient to -/// guarantee that the regions are actually legal values; that -/// final condition is imposed after region inference is done. -/// -/// # The Problem -/// -/// Let's work through an example to explain how it works. Assume -/// the current function is as follows: -/// -/// ```text -/// fn foo<'a, 'b>(..) -> (impl Bar<'a>, impl Bar<'b>) -/// ``` -/// -/// Here, we have two `impl Trait` types whose values are being -/// inferred (the `impl Bar<'a>` and the `impl -/// Bar<'b>`). Conceptually, this is sugar for a setup where we -/// define underlying opaque types (`Foo1`, `Foo2`) and then, in -/// the return type of `foo`, we *reference* those definitions: -/// -/// ```text -/// type Foo1<'x> = impl Bar<'x>; -/// type Foo2<'x> = impl Bar<'x>; -/// fn foo<'a, 'b>(..) -> (Foo1<'a>, Foo2<'b>) { .. } -/// // ^^^^ ^^ -/// // | | -/// // | args -/// // def_id -/// ``` -/// -/// As indicating in the comments above, each of those references -/// is (in the compiler) basically generic parameters (`args`) -/// applied to the type of a suitable `def_id` (which identifies -/// `Foo1` or `Foo2`). -/// -/// Now, at this point in compilation, what we have done is to -/// replace each of the references (`Foo1<'a>`, `Foo2<'b>`) with -/// fresh inference variables C1 and C2. We wish to use the values -/// of these variables to infer the underlying types of `Foo1` and -/// `Foo2`. That is, this gives rise to higher-order (pattern) unification -/// constraints like: -/// -/// ```text -/// for<'a> (Foo1<'a> = C1) -/// for<'b> (Foo1<'b> = C2) -/// ``` -/// -/// For these equation to be satisfiable, the types `C1` and `C2` -/// can only refer to a limited set of regions. For example, `C1` -/// can only refer to `'static` and `'a`, and `C2` can only refer -/// to `'static` and `'b`. The job of this function is to impose that -/// constraint. -/// -/// Up to this point, C1 and C2 are basically just random type -/// inference variables, and hence they may contain arbitrary -/// regions. In fact, it is fairly likely that they do! Consider -/// this possible definition of `foo`: -/// -/// ```text -/// fn foo<'a, 'b>(x: &'a i32, y: &'b i32) -> (impl Bar<'a>, impl Bar<'b>) { -/// (&*x, &*y) -/// } -/// ``` -/// -/// Here, the values for the concrete types of the two impl -/// traits will include inference variables: -/// -/// ```text -/// &'0 i32 -/// &'1 i32 -/// ``` -/// -/// Ordinarily, the subtyping rules would ensure that these are -/// sufficiently large. But since `impl Bar<'a>` isn't a specific -/// type per se, we don't get such constraints by default. This -/// is where this function comes into play. It adds extra -/// constraints to ensure that all the regions which appear in the -/// inferred type are regions that could validly appear. -/// -/// This is actually a bit of a tricky constraint in general. We -/// want to say that each variable (e.g., `'0`) can only take on -/// values that were supplied as arguments to the opaque type -/// (e.g., `'a` for `Foo1<'a>`) or `'static`, which is always in -/// scope. We don't have a constraint quite of this kind in the current -/// region checker. -/// -/// # The Solution -/// -/// We generally prefer to make `<=` constraints, since they -/// integrate best into the region solver. To do that, we find the -/// "minimum" of all the arguments that appear in the args: that -/// is, some region which is less than all the others. In the case -/// of `Foo1<'a>`, that would be `'a` (it's the only choice, after -/// all). Then we apply that as a least bound to the variables -/// (e.g., `'a <= '0`). -/// -/// In some cases, there is no minimum. Consider this example: -/// -/// ```text -/// fn baz<'a, 'b>() -> impl Trait<'a, 'b> { ... } -/// ``` -/// -/// Here we would report a more complex "in constraint", like `'r -/// in ['a, 'b, 'static]` (where `'r` is some region appearing in -/// the hidden type). -/// -/// # Constrain regions, not the hidden concrete type -/// -/// Note that generating constraints on each region `Rc` is *not* -/// the same as generating an outlives constraint on `Tc` itself. -/// For example, if we had a function like this: -/// -/// ``` -/// # #![feature(type_alias_impl_trait)] -/// # fn main() {} -/// # trait Foo<'a> {} -/// # impl<'a, T> Foo<'a> for (&'a u32, T) {} -/// fn foo<'a, T>(x: &'a u32, y: T) -> impl Foo<'a> { -/// (x, y) -/// } -/// -/// // Equivalent to: -/// # mod dummy { use super::*; -/// type FooReturn<'a, T> = impl Foo<'a>; -/// #[define_opaque(FooReturn)] -/// fn foo<'a, T>(x: &'a u32, y: T) -> FooReturn<'a, T> { -/// (x, y) -/// } -/// # } -/// ``` -/// -/// then the hidden type `Tc` would be `(&'0 u32, T)` (where `'0` -/// is an inference variable). If we generated a constraint that -/// `Tc: 'a`, then this would incorrectly require that `T: 'a` -- -/// but this is not necessary, because the opaque type we -/// create will be allowed to reference `T`. So we only generate a -/// constraint that `'0: 'a`. -fn register_member_constraints<'tcx>( - typeck: &mut TypeChecker<'_, 'tcx>, - member_constraints: &mut MemberConstraintSet<'tcx, ty::RegionVid>, - opaque_type_key: OpaqueTypeKey<'tcx>, - OpaqueHiddenType { span, ty: hidden_ty }: OpaqueHiddenType<'tcx>, -) { - let tcx = typeck.tcx(); - let hidden_ty = typeck.infcx.resolve_vars_if_possible(hidden_ty); - debug!(?hidden_ty); - - let variances = tcx.variances_of(opaque_type_key.def_id); - debug!(?variances); - - // For a case like `impl Foo<'a, 'b>`, we would generate a constraint - // `'r in ['a, 'b, 'static]` for each region `'r` that appears in the - // hidden type (i.e., it must be equal to `'a`, `'b`, or `'static`). - // - // `conflict1` and `conflict2` are the two region bounds that we - // detected which were unrelated. They are used for diagnostics. - - // Create the set of choice regions: each region in the hidden - // type can be equal to any of the region parameters of the - // opaque type definition. - let fr_static = typeck.universal_regions.fr_static; - let choice_regions: Vec<_> = opaque_type_key - .args - .iter() - .enumerate() - .filter(|(i, _)| variances[*i] == ty::Invariant) - .filter_map(|(_, arg)| match arg.kind() { - GenericArgKind::Lifetime(r) => Some(typeck.to_region_vid(r)), - GenericArgKind::Type(_) | GenericArgKind::Const(_) => None, - }) - .chain(iter::once(fr_static)) - .collect(); - - // FIXME(#42940): This should use the `FreeRegionsVisitor`, but that's - // not currently sound until we have existential regions. - hidden_ty.visit_with(&mut ConstrainOpaqueTypeRegionVisitor { - tcx, - op: |r| { - member_constraints.add_member_constraint( - opaque_type_key, - hidden_ty, - span, - typeck.to_region_vid(r), - &choice_regions, - ) - }, - }); -} - -/// Visitor that requires that (almost) all regions in the type visited outlive -/// `least_region`. We cannot use `push_outlives_components` because regions in -/// closure signatures are not included in their outlives components. We need to -/// ensure all regions outlive the given bound so that we don't end up with, -/// say, `ReVar` appearing in a return type and causing ICEs when other -/// functions end up with region constraints involving regions from other -/// functions. -/// -/// We also cannot use `for_each_free_region` because for closures it includes -/// the regions parameters from the enclosing item. -/// -/// We ignore any type parameters because impl trait values are assumed to -/// capture all the in-scope type parameters. -struct ConstrainOpaqueTypeRegionVisitor<'tcx, OP: FnMut(ty::Region<'tcx>)> { - tcx: TyCtxt<'tcx>, - op: OP, -} - -impl<'tcx, OP> TypeVisitor<TyCtxt<'tcx>> for ConstrainOpaqueTypeRegionVisitor<'tcx, OP> -where - OP: FnMut(ty::Region<'tcx>), -{ - fn visit_region(&mut self, r: ty::Region<'tcx>) { - match r.kind() { - // ignore bound regions, keep visiting - ty::ReBound(_, _) => {} - _ => (self.op)(r), - } - } - - fn visit_ty(&mut self, ty: Ty<'tcx>) { - // We're only interested in types involving regions - if !ty.flags().intersects(ty::TypeFlags::HAS_FREE_REGIONS) { - return; - } - - match *ty.kind() { - ty::Closure(_, args) => { - // Skip lifetime parameters of the enclosing item(s) - - for upvar in args.as_closure().upvar_tys() { - upvar.visit_with(self); - } - args.as_closure().sig_as_fn_ptr_ty().visit_with(self); - } - - ty::CoroutineClosure(_, args) => { - // Skip lifetime parameters of the enclosing item(s) - - for upvar in args.as_coroutine_closure().upvar_tys() { - upvar.visit_with(self); - } - - args.as_coroutine_closure().signature_parts_ty().visit_with(self); - } - - ty::Coroutine(_, args) => { - // Skip lifetime parameters of the enclosing item(s) - // Also skip the witness type, because that has no free regions. - - for upvar in args.as_coroutine().upvar_tys() { - upvar.visit_with(self); - } - args.as_coroutine().return_ty().visit_with(self); - args.as_coroutine().yield_ty().visit_with(self); - args.as_coroutine().resume_ty().visit_with(self); - } - - ty::Alias(kind, ty::AliasTy { def_id, args, .. }) - if let Some(variances) = self.tcx.opt_alias_variances(kind, def_id) => - { - // Skip lifetime parameters that are not captured, since they do - // not need member constraints registered for them; we'll erase - // them (and hopefully in the future replace them with placeholders). - for (v, s) in std::iter::zip(variances, args.iter()) { - if *v != ty::Bivariant { - s.visit_with(self); - } - } - } - - _ => { - ty.super_visit_with(self); - } - } - } -} diff --git a/compiler/rustc_borrowck/src/type_check/relate_tys.rs b/compiler/rustc_borrowck/src/type_check/relate_tys.rs index 84ca9bad2c1..7ac2dff12f7 100644 --- a/compiler/rustc_borrowck/src/type_check/relate_tys.rs +++ b/compiler/rustc_borrowck/src/type_check/relate_tys.rs @@ -124,8 +124,13 @@ impl<'a, 'b, 'tcx> NllTypeRelating<'a, 'b, 'tcx> { // by using `ty_vid rel B` and then finally and end by equating `ty_vid` to // the opaque. let mut enable_subtyping = |ty, opaque_is_expected| { - let ty_vid = infcx.next_ty_var_id_in_universe(self.span(), ty::UniverseIndex::ROOT); - + // We create the fresh inference variable in the highest universe. + // In theory we could limit it to the highest universe in the args of + // the opaque but that isn't really worth the effort. + // + // We'll make sure that the opaque type can actually name everything + // in its hidden type later on. + let ty_vid = infcx.next_ty_vid(self.span()); let variance = if opaque_is_expected { self.ambient_variance } else { diff --git a/compiler/rustc_builtin_macros/src/cfg_accessible.rs b/compiler/rustc_builtin_macros/src/cfg_accessible.rs index f7d8f4aa783..48d80004cdd 100644 --- a/compiler/rustc_builtin_macros/src/cfg_accessible.rs +++ b/compiler/rustc_builtin_macros/src/cfg_accessible.rs @@ -1,9 +1,9 @@ //! Implementation of the `#[cfg_accessible(path)]` attribute macro. use rustc_ast as ast; +use rustc_attr_parsing::validate_attr; use rustc_expand::base::{Annotatable, ExpandResult, ExtCtxt, Indeterminate, MultiItemModifier}; use rustc_feature::AttributeTemplate; -use rustc_parse::validate_attr; use rustc_span::{Span, sym}; use crate::errors; diff --git a/compiler/rustc_builtin_macros/src/derive.rs b/compiler/rustc_builtin_macros/src/derive.rs index a33eca43de5..09d827b0635 100644 --- a/compiler/rustc_builtin_macros/src/derive.rs +++ b/compiler/rustc_builtin_macros/src/derive.rs @@ -1,10 +1,10 @@ use rustc_ast as ast; use rustc_ast::{GenericParamKind, ItemKind, MetaItemInner, MetaItemKind, StmtKind}; +use rustc_attr_parsing::validate_attr; use rustc_expand::base::{ Annotatable, DeriveResolution, ExpandResult, ExtCtxt, Indeterminate, MultiItemModifier, }; use rustc_feature::AttributeTemplate; -use rustc_parse::validate_attr; use rustc_session::Session; use rustc_span::{ErrorGuaranteed, Ident, Span, sym}; diff --git a/compiler/rustc_builtin_macros/src/deriving/from.rs b/compiler/rustc_builtin_macros/src/deriving/from.rs index ef0e6ca324a..ab25de7c917 100644 --- a/compiler/rustc_builtin_macros/src/deriving/from.rs +++ b/compiler/rustc_builtin_macros/src/deriving/from.rs @@ -27,21 +27,39 @@ pub(crate) fn expand_deriving_from( cx.dcx().bug("derive(From) used on something else than an item"); }; - // #[derive(From)] is currently usable only on structs with exactly one field. - let field = if let ItemKind::Struct(_, _, data) = &item.kind - && let [field] = data.fields() - { - Some(field.clone()) - } else { - None + let err_span = || { + let item_span = item.kind.ident().map(|ident| ident.span).unwrap_or(item.span); + MultiSpan::from_spans(vec![span, item_span]) }; - let from_type = match &field { - Some(field) => Ty::AstTy(field.ty.clone()), - // We don't have a type to put into From<...> if we don't have a single field, so just put - // unit there. - None => Ty::Unit, + // `#[derive(From)]` is currently usable only on structs with exactly one field. + let field = match &item.kind { + ItemKind::Struct(_, _, data) => { + if let [field] = data.fields() { + Ok(field.clone()) + } else { + let guar = cx.dcx().emit_err(errors::DeriveFromWrongFieldCount { + span: err_span(), + multiple_fields: data.fields().len() > 1, + }); + Err(guar) + } + } + ItemKind::Enum(_, _, _) | ItemKind::Union(_, _, _) => { + let guar = cx.dcx().emit_err(errors::DeriveFromWrongTarget { + span: err_span(), + kind: &format!("{} {}", item.kind.article(), item.kind.descr()), + }); + Err(guar) + } + _ => cx.dcx().bug("Invalid derive(From) ADT input"), }; + + let from_type = Ty::AstTy(match field { + Ok(ref field) => field.ty.clone(), + Err(guar) => cx.ty(span, ast::TyKind::Err(guar)), + }); + let path = Path::new_(pathvec_std!(convert::From), vec![Box::new(from_type.clone())], PathKind::Std); @@ -71,34 +89,17 @@ pub(crate) fn expand_deriving_from( attributes: thin_vec![cx.attr_word(sym::inline, span)], fieldless_variants_strategy: FieldlessVariantsStrategy::Default, combine_substructure: combine_substructure(Box::new(|cx, span, substructure| { - let Some(field) = &field else { - let item_span = item.kind.ident().map(|ident| ident.span).unwrap_or(item.span); - let err_span = MultiSpan::from_spans(vec![span, item_span]); - let error = match &item.kind { - ItemKind::Struct(_, _, data) => { - cx.dcx().emit_err(errors::DeriveFromWrongFieldCount { - span: err_span, - multiple_fields: data.fields().len() > 1, - }) - } - ItemKind::Enum(_, _, _) | ItemKind::Union(_, _, _) => { - cx.dcx().emit_err(errors::DeriveFromWrongTarget { - span: err_span, - kind: &format!("{} {}", item.kind.article(), item.kind.descr()), - }) - } - _ => cx.dcx().bug("Invalid derive(From) ADT input"), - }; - - return BlockOrExpr::new_expr(DummyResult::raw_expr(span, Some(error))); + let field = match field { + Ok(ref field) => field, + Err(guar) => { + return BlockOrExpr::new_expr(DummyResult::raw_expr(span, Some(guar))); + } }; let self_kw = Ident::new(kw::SelfUpper, span); let expr: Box<ast::Expr> = match substructure.fields { SubstructureFields::StaticStruct(variant, _) => match variant { - // Self { - // field: value - // } + // Self { field: value } VariantData::Struct { .. } => cx.expr_struct_ident( span, self_kw, diff --git a/compiler/rustc_builtin_macros/src/format.rs b/compiler/rustc_builtin_macros/src/format.rs index ec613b7b710..6415e55e0b0 100644 --- a/compiler/rustc_builtin_macros/src/format.rs +++ b/compiler/rustc_builtin_macros/src/format.rs @@ -10,11 +10,12 @@ use rustc_ast::{ }; use rustc_data_structures::fx::FxHashSet; use rustc_errors::{ - Applicability, Diag, MultiSpan, PResult, SingleLabelManySpans, listify, pluralize, + Applicability, BufferedEarlyLint, Diag, MultiSpan, PResult, SingleLabelManySpans, listify, + pluralize, }; use rustc_expand::base::*; use rustc_lint_defs::builtin::NAMED_ARGUMENTS_USED_POSITIONALLY; -use rustc_lint_defs::{BufferedEarlyLint, BuiltinLintDiag, LintId}; +use rustc_lint_defs::{BuiltinLintDiag, LintId}; use rustc_parse::exp; use rustc_parse_format as parse; use rustc_span::{BytePos, ErrorGuaranteed, Ident, InnerSpan, Span, Symbol}; @@ -595,7 +596,8 @@ fn make_format_args( named_arg_sp: arg_name.span, named_arg_name: arg_name.name.to_string(), is_formatting_arg: matches!(used_as, Width | Precision), - }, + } + .into(), }); } } diff --git a/compiler/rustc_builtin_macros/src/lib.rs b/compiler/rustc_builtin_macros/src/lib.rs index 86a4927f390..1bcea95fbb7 100644 --- a/compiler/rustc_builtin_macros/src/lib.rs +++ b/compiler/rustc_builtin_macros/src/lib.rs @@ -8,7 +8,6 @@ #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")] #![doc(rust_logo)] #![feature(assert_matches)] -#![feature(autodiff)] #![feature(box_patterns)] #![feature(decl_macro)] #![feature(if_let_guard)] diff --git a/compiler/rustc_builtin_macros/src/test_harness.rs b/compiler/rustc_builtin_macros/src/test_harness.rs index e803f3be82b..a9d91f77560 100644 --- a/compiler/rustc_builtin_macros/src/test_harness.rs +++ b/compiler/rustc_builtin_macros/src/test_harness.rs @@ -141,7 +141,7 @@ impl<'a> MutVisitor for TestHarnessGenerator<'a> { if let ast::ItemKind::Mod( _, _, - ModKind::Loaded(.., ast::ModSpans { inner_span: span, .. }, _), + ModKind::Loaded(.., ast::ModSpans { inner_span: span, .. }), ) = item.kind { let prev_tests = mem::take(&mut self.tests); diff --git a/compiler/rustc_builtin_macros/src/util.rs b/compiler/rustc_builtin_macros/src/util.rs index f00c170e485..3a4585d5be9 100644 --- a/compiler/rustc_builtin_macros/src/util.rs +++ b/compiler/rustc_builtin_macros/src/util.rs @@ -1,12 +1,13 @@ use rustc_ast::tokenstream::TokenStream; use rustc_ast::{self as ast, AttrStyle, Attribute, MetaItem, attr, token}; +use rustc_attr_parsing::validate_attr; use rustc_errors::{Applicability, Diag, ErrorGuaranteed}; use rustc_expand::base::{Annotatable, ExpandResult, ExtCtxt}; use rustc_expand::expand::AstFragment; use rustc_feature::AttributeTemplate; use rustc_lint_defs::BuiltinLintDiag; use rustc_lint_defs::builtin::DUPLICATE_MACRO_ATTRIBUTES; -use rustc_parse::{exp, parser, validate_attr}; +use rustc_parse::{exp, parser}; use rustc_session::errors::report_lit_error; use rustc_span::{BytePos, Span, Symbol}; diff --git a/compiler/rustc_codegen_llvm/src/abi.rs b/compiler/rustc_codegen_llvm/src/abi.rs index 043123fcab2..399f8b6e762 100644 --- a/compiler/rustc_codegen_llvm/src/abi.rs +++ b/compiler/rustc_codegen_llvm/src/abi.rs @@ -42,12 +42,13 @@ trait ArgAttributesExt { const ABI_AFFECTING_ATTRIBUTES: [(ArgAttribute, llvm::AttributeKind); 1] = [(ArgAttribute::InReg, llvm::AttributeKind::InReg)]; -const OPTIMIZATION_ATTRIBUTES: [(ArgAttribute, llvm::AttributeKind); 5] = [ +const OPTIMIZATION_ATTRIBUTES: [(ArgAttribute, llvm::AttributeKind); 6] = [ (ArgAttribute::NoAlias, llvm::AttributeKind::NoAlias), (ArgAttribute::NoCapture, llvm::AttributeKind::NoCapture), (ArgAttribute::NonNull, llvm::AttributeKind::NonNull), (ArgAttribute::ReadOnly, llvm::AttributeKind::ReadOnly), (ArgAttribute::NoUndef, llvm::AttributeKind::NoUndef), + (ArgAttribute::CapturesReadOnly, llvm::AttributeKind::CapturesReadOnly), ]; fn get_attrs<'ll>(this: &ArgAttributes, cx: &CodegenCx<'ll, '_>) -> SmallVec<[&'ll Attribute; 8]> { @@ -83,6 +84,10 @@ fn get_attrs<'ll>(this: &ArgAttributes, cx: &CodegenCx<'ll, '_>) -> SmallVec<[&' } for (attr, llattr) in OPTIMIZATION_ATTRIBUTES { if regular.contains(attr) { + // captures(address, read_provenance) is only available since LLVM 21. + if attr == ArgAttribute::CapturesReadOnly && llvm_util::get_version() < (21, 0, 0) { + continue; + } attrs.push(llattr.create_attr(cx.llcx)); } } diff --git a/compiler/rustc_codegen_llvm/src/allocator.rs b/compiler/rustc_codegen_llvm/src/allocator.rs index 23610aa856c..df3e49279d9 100644 --- a/compiler/rustc_codegen_llvm/src/allocator.rs +++ b/compiler/rustc_codegen_llvm/src/allocator.rs @@ -12,7 +12,7 @@ use smallvec::SmallVec; use crate::builder::SBuilder; use crate::declare::declare_simple_fn; -use crate::llvm::{self, False, True, Type, Value}; +use crate::llvm::{self, FALSE, TRUE, Type, Value}; use crate::{SimpleCx, attributes, debuginfo, llvm_util}; pub(crate) unsafe fn codegen( @@ -80,7 +80,7 @@ pub(crate) unsafe fn codegen( &cx, &mangle_internal_symbol(tcx, OomStrategy::SYMBOL), &i8, - &llvm::LLVMConstInt(i8, tcx.sess.opts.unstable_opts.oom.should_panic() as u64, False), + &llvm::LLVMConstInt(i8, tcx.sess.opts.unstable_opts.oom.should_panic() as u64, FALSE), ); // __rust_no_alloc_shim_is_unstable_v2 @@ -201,7 +201,7 @@ fn create_wrapper_function( .map(|(i, _)| llvm::get_param(llfn, i as c_uint)) .collect::<Vec<_>>(); let ret = bx.call(ty, callee, &args, None); - llvm::LLVMSetTailCall(ret, True); + llvm::LLVMSetTailCall(ret, TRUE); if output.is_some() { bx.ret(ret); } else { diff --git a/compiler/rustc_codegen_llvm/src/asm.rs b/compiler/rustc_codegen_llvm/src/asm.rs index a643a91141e..38c1d3b53e8 100644 --- a/compiler/rustc_codegen_llvm/src/asm.rs +++ b/compiler/rustc_codegen_llvm/src/asm.rs @@ -16,6 +16,7 @@ use tracing::debug; use crate::builder::Builder; use crate::common::Funclet; use crate::context::CodegenCx; +use crate::llvm::ToLlvmBool; use crate::type_::Type; use crate::type_of::LayoutLlvmExt; use crate::value::Value; @@ -470,10 +471,6 @@ pub(crate) fn inline_asm_call<'ll>( dest: Option<&'ll llvm::BasicBlock>, catch_funclet: Option<(&'ll llvm::BasicBlock, Option<&Funclet<'ll>>)>, ) -> Option<&'ll Value> { - let volatile = if volatile { llvm::True } else { llvm::False }; - let alignstack = if alignstack { llvm::True } else { llvm::False }; - let can_throw = if unwind { llvm::True } else { llvm::False }; - let argtys = inputs .iter() .map(|v| { @@ -500,10 +497,10 @@ pub(crate) fn inline_asm_call<'ll>( asm.len(), cons.as_ptr(), cons.len(), - volatile, - alignstack, + volatile.to_llvm_bool(), + alignstack.to_llvm_bool(), dia, - can_throw, + unwind.to_llvm_bool(), ) }; diff --git a/compiler/rustc_codegen_llvm/src/attributes.rs b/compiler/rustc_codegen_llvm/src/attributes.rs index a6daacd95ef..5affb26483a 100644 --- a/compiler/rustc_codegen_llvm/src/attributes.rs +++ b/compiler/rustc_codegen_llvm/src/attributes.rs @@ -420,6 +420,16 @@ pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>( || codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::ALLOCATOR_ZEROED) { to_add.push(create_alloc_family_attr(cx.llcx)); + if let Some(zv) = + cx.tcx.get_attr(instance.def_id(), rustc_span::sym::rustc_allocator_zeroed_variant) + && let Some(name) = zv.value_str() + { + to_add.push(llvm::CreateAttrStringValue( + cx.llcx, + "alloc-variant-zeroed", + &mangle_internal_symbol(cx.tcx, name.as_str()), + )); + } // apply to argument place instead of function let alloc_align = AttributeKind::AllocAlign.create_attr(cx.llcx); attributes::apply_to_llfn(llfn, AttributePlace::Argument(1), &[alloc_align]); @@ -497,7 +507,7 @@ pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>( to_add.push(llvm::CreateAttrStringValue(cx.llcx, "wasm-import-module", module)); let name = - codegen_fn_attrs.link_name.unwrap_or_else(|| cx.tcx.item_name(instance.def_id())); + codegen_fn_attrs.symbol_name.unwrap_or_else(|| cx.tcx.item_name(instance.def_id())); let name = name.as_str(); to_add.push(llvm::CreateAttrStringValue(cx.llcx, "wasm-import-name", name)); } diff --git a/compiler/rustc_codegen_llvm/src/back/write.rs b/compiler/rustc_codegen_llvm/src/back/write.rs index 62998003ca1..7c65d667bda 100644 --- a/compiler/rustc_codegen_llvm/src/back/write.rs +++ b/compiler/rustc_codegen_llvm/src/back/write.rs @@ -1110,7 +1110,7 @@ fn embed_bitcode( llvm::set_section(llglobal, bitcode_section_name(cgcx)); llvm::set_linkage(llglobal, llvm::Linkage::PrivateLinkage); - llvm::LLVMSetGlobalConstant(llglobal, llvm::True); + llvm::LLVMSetGlobalConstant(llglobal, llvm::TRUE); let llconst = common::bytes_in_context(llcx, &[]); let llglobal = llvm::add_global(llmod, common::val_ty(llconst), c"rustc.embedded.cmdline"); diff --git a/compiler/rustc_codegen_llvm/src/builder.rs b/compiler/rustc_codegen_llvm/src/builder.rs index 427c75d40e9..37379586d58 100644 --- a/compiler/rustc_codegen_llvm/src/builder.rs +++ b/compiler/rustc_codegen_llvm/src/builder.rs @@ -35,7 +35,7 @@ use crate::attributes; use crate::common::Funclet; use crate::context::{CodegenCx, FullCx, GenericCx, SCx}; use crate::llvm::{ - self, AtomicOrdering, AtomicRmwBinOp, BasicBlock, False, GEPNoWrapFlags, Metadata, True, + self, AtomicOrdering, AtomicRmwBinOp, BasicBlock, GEPNoWrapFlags, Metadata, TRUE, ToLlvmBool, }; use crate::type_::Type; use crate::type_of::LayoutLlvmExt; @@ -493,8 +493,8 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { unsafe { let add = llvm::LLVMBuildAdd(self.llbuilder, a, b, UNNAMED); if llvm::LLVMIsAInstruction(add).is_some() { - llvm::LLVMSetNUW(add, True); - llvm::LLVMSetNSW(add, True); + llvm::LLVMSetNUW(add, TRUE); + llvm::LLVMSetNSW(add, TRUE); } add } @@ -503,8 +503,8 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { unsafe { let sub = llvm::LLVMBuildSub(self.llbuilder, a, b, UNNAMED); if llvm::LLVMIsAInstruction(sub).is_some() { - llvm::LLVMSetNUW(sub, True); - llvm::LLVMSetNSW(sub, True); + llvm::LLVMSetNUW(sub, TRUE); + llvm::LLVMSetNSW(sub, TRUE); } sub } @@ -513,8 +513,8 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { unsafe { let mul = llvm::LLVMBuildMul(self.llbuilder, a, b, UNNAMED); if llvm::LLVMIsAInstruction(mul).is_some() { - llvm::LLVMSetNUW(mul, True); - llvm::LLVMSetNSW(mul, True); + llvm::LLVMSetNUW(mul, TRUE); + llvm::LLVMSetNSW(mul, TRUE); } mul } @@ -528,7 +528,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { // an instruction, so we need to check before setting the flag. // (See also `LLVMBuildNUWNeg` which also needs a check.) if llvm::LLVMIsAInstruction(or).is_some() { - llvm::LLVMSetIsDisjoint(or, True); + llvm::LLVMSetIsDisjoint(or, TRUE); } or } @@ -629,7 +629,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { fn volatile_load(&mut self, ty: &'ll Type, ptr: &'ll Value) -> &'ll Value { unsafe { let load = llvm::LLVMBuildLoad2(self.llbuilder, ty, ptr, UNNAMED); - llvm::LLVMSetVolatile(load, llvm::True); + llvm::LLVMSetVolatile(load, llvm::TRUE); load } } @@ -717,7 +717,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { let mut const_llval = None; let llty = place.layout.llvm_type(self); if let Some(global) = llvm::LLVMIsAGlobalVariable(place.val.llval) { - if llvm::LLVMIsGlobalConstant(global) == llvm::True { + if llvm::LLVMIsGlobalConstant(global).is_true() { if let Some(init) = llvm::LLVMGetInitializer(global) { if self.val_ty(init) == llty { const_llval = Some(init); @@ -838,7 +838,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { if flags.contains(MemFlags::UNALIGNED) { 1 } else { align.bytes() as c_uint }; llvm::LLVMSetAlignment(store, align); if flags.contains(MemFlags::VOLATILE) { - llvm::LLVMSetVolatile(store, llvm::True); + llvm::LLVMSetVolatile(store, llvm::TRUE); } if flags.contains(MemFlags::NONTEMPORAL) { // Make sure that the current target architectures supports "sane" non-temporal @@ -956,7 +956,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { let trunc = self.trunc(val, dest_ty); unsafe { if llvm::LLVMIsAInstruction(trunc).is_some() { - llvm::LLVMSetNUW(trunc, True); + llvm::LLVMSetNUW(trunc, TRUE); } } trunc @@ -968,7 +968,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { let trunc = self.trunc(val, dest_ty); unsafe { if llvm::LLVMIsAInstruction(trunc).is_some() { - llvm::LLVMSetNSW(trunc, True); + llvm::LLVMSetNSW(trunc, TRUE); } } trunc @@ -1067,13 +1067,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { fn intcast(&mut self, val: &'ll Value, dest_ty: &'ll Type, is_signed: bool) -> &'ll Value { unsafe { - llvm::LLVMBuildIntCast2( - self.llbuilder, - val, - dest_ty, - if is_signed { True } else { False }, - UNNAMED, - ) + llvm::LLVMBuildIntCast2(self.llbuilder, val, dest_ty, is_signed.to_llvm_bool(), UNNAMED) } } @@ -1229,7 +1223,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { let ty = self.type_struct(&[self.type_ptr(), self.type_i32()], false); let landing_pad = self.landing_pad(ty, pers_fn, 0); unsafe { - llvm::LLVMSetCleanup(landing_pad, llvm::True); + llvm::LLVMSetCleanup(landing_pad, llvm::TRUE); } (self.extract_value(landing_pad, 0), self.extract_value(landing_pad, 1)) } @@ -1317,7 +1311,6 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { failure_order: rustc_middle::ty::AtomicOrdering, weak: bool, ) -> (&'ll Value, &'ll Value) { - let weak = if weak { llvm::True } else { llvm::False }; unsafe { let value = llvm::LLVMBuildAtomicCmpXchg( self.llbuilder, @@ -1326,9 +1319,9 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { src, AtomicOrdering::from_generic(order), AtomicOrdering::from_generic(failure_order), - llvm::False, // SingleThreaded + llvm::FALSE, // SingleThreaded ); - llvm::LLVMSetWeak(value, weak); + llvm::LLVMSetWeak(value, weak.to_llvm_bool()); let val = self.extract_value(value, 0); let success = self.extract_value(value, 1); (val, success) @@ -1353,7 +1346,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { dst, src, AtomicOrdering::from_generic(order), - llvm::False, // SingleThreaded + llvm::FALSE, // SingleThreaded ) }; if ret_ptr && self.val_ty(res) != self.type_ptr() { @@ -1368,14 +1361,14 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { scope: SynchronizationScope, ) { let single_threaded = match scope { - SynchronizationScope::SingleThread => llvm::True, - SynchronizationScope::CrossThread => llvm::False, + SynchronizationScope::SingleThread => true, + SynchronizationScope::CrossThread => false, }; unsafe { llvm::LLVMBuildFence( self.llbuilder, AtomicOrdering::from_generic(order), - single_threaded, + single_threaded.to_llvm_bool(), UNNAMED, ); } diff --git a/compiler/rustc_codegen_llvm/src/builder/autodiff.rs b/compiler/rustc_codegen_llvm/src/builder/autodiff.rs index e2df3265f6f..6ddf53cdc87 100644 --- a/compiler/rustc_codegen_llvm/src/builder/autodiff.rs +++ b/compiler/rustc_codegen_llvm/src/builder/autodiff.rs @@ -11,7 +11,7 @@ use crate::builder::{Builder, PlaceRef, UNNAMED}; use crate::context::SimpleCx; use crate::declare::declare_simple_fn; use crate::llvm; -use crate::llvm::{Metadata, True, Type}; +use crate::llvm::{Metadata, TRUE, Type}; use crate::value::Value; pub(crate) fn adjust_activity_to_abi<'tcx>( @@ -293,7 +293,7 @@ pub(crate) fn generate_enzyme_call<'ll, 'tcx>( // ret double %0 // } // ``` - let enzyme_ty = unsafe { llvm::LLVMFunctionType(ret_ty, ptr::null(), 0, True) }; + let enzyme_ty = unsafe { llvm::LLVMFunctionType(ret_ty, ptr::null(), 0, TRUE) }; // FIXME(ZuseZ4): the CC/Addr/Vis values are best effort guesses, we should look at tests and // think a bit more about what should go here. diff --git a/compiler/rustc_codegen_llvm/src/common.rs b/compiler/rustc_codegen_llvm/src/common.rs index f29fefb66f0..11b79a7fe68 100644 --- a/compiler/rustc_codegen_llvm/src/common.rs +++ b/compiler/rustc_codegen_llvm/src/common.rs @@ -20,7 +20,7 @@ use tracing::debug; use crate::consts::const_alloc_to_llvm; pub(crate) use crate::context::CodegenCx; use crate::context::{GenericCx, SCx}; -use crate::llvm::{self, BasicBlock, Bool, ConstantInt, False, Metadata, True}; +use crate::llvm::{self, BasicBlock, ConstantInt, FALSE, Metadata, TRUE, ToLlvmBool}; use crate::type_::Type; use crate::value::Value; @@ -158,7 +158,7 @@ impl<'ll, 'tcx> ConstCodegenMethods for CodegenCx<'ll, 'tcx> { self.type_kind(t) == TypeKind::Integer, "only allows integer types in const_int" ); - unsafe { llvm::LLVMConstInt(t, i as u64, True) } + unsafe { llvm::LLVMConstInt(t, i as u64, TRUE) } } fn const_u8(&self, i: u8) -> &'ll Value { @@ -192,7 +192,7 @@ impl<'ll, 'tcx> ConstCodegenMethods for CodegenCx<'ll, 'tcx> { self.type_kind(t) == TypeKind::Integer, "only allows integer types in const_uint" ); - unsafe { llvm::LLVMConstInt(t, i, False) } + unsafe { llvm::LLVMConstInt(t, i, FALSE) } } fn const_uint_big(&self, t: &'ll Type, u: u128) -> &'ll Value { @@ -377,7 +377,7 @@ pub(crate) fn val_ty(v: &Value) -> &Type { pub(crate) fn bytes_in_context<'ll>(llcx: &'ll llvm::Context, bytes: &[u8]) -> &'ll Value { unsafe { let ptr = bytes.as_ptr() as *const c_char; - llvm::LLVMConstStringInContext2(llcx, ptr, bytes.len(), True) + llvm::LLVMConstStringInContext2(llcx, ptr, bytes.len(), TRUE) } } @@ -392,7 +392,7 @@ fn struct_in_context<'ll>( packed: bool, ) -> &'ll Value { let len = c_uint::try_from(elts.len()).expect("LLVMConstStructInContext elements len overflow"); - unsafe { llvm::LLVMConstStructInContext(llcx, elts.as_ptr(), len, packed as Bool) } + unsafe { llvm::LLVMConstStructInContext(llcx, elts.as_ptr(), len, packed.to_llvm_bool()) } } #[inline] diff --git a/compiler/rustc_codegen_llvm/src/context.rs b/compiler/rustc_codegen_llvm/src/context.rs index 2d91ae64e2d..4fd6110ac4a 100644 --- a/compiler/rustc_codegen_llvm/src/context.rs +++ b/compiler/rustc_codegen_llvm/src/context.rs @@ -471,6 +471,15 @@ pub(crate) unsafe fn create_module<'ll>( } } + if sess.opts.unstable_opts.indirect_branch_cs_prefix { + llvm::add_module_flag_u32( + llmod, + llvm::ModuleFlagMergeBehavior::Override, + "indirect_branch_cs_prefix", + 1, + ); + } + match (sess.opts.unstable_opts.small_data_threshold, sess.target.small_data_threshold_support()) { // Set up the small-data optimization limit for architectures that use @@ -692,7 +701,7 @@ impl<'ll, CX: Borrow<SCx<'ll>>> GenericCx<'ll, CX> { } pub(crate) fn get_const_int(&self, ty: &'ll Type, val: u64) -> &'ll Value { - unsafe { llvm::LLVMConstInt(ty, val, llvm::False) } + unsafe { llvm::LLVMConstInt(ty, val, llvm::FALSE) } } pub(crate) fn get_const_i64(&self, n: u64) -> &'ll Value { diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs b/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs index 6eb7042da61..7a6dc008c7b 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs @@ -72,7 +72,7 @@ pub(crate) fn get_or_insert_gdb_debug_scripts_section_global<'ll>( .unwrap_or_else(|| bug!("symbol `{}` is already defined", section_var_name)); llvm::set_section(section_var, c".debug_gdb_scripts"); llvm::set_initializer(section_var, cx.const_bytes(section_contents)); - llvm::LLVMSetGlobalConstant(section_var, llvm::True); + llvm::LLVMSetGlobalConstant(section_var, llvm::TRUE); llvm::set_unnamed_address(section_var, llvm::UnnamedAddr::Global); llvm::set_linkage(section_var, llvm::Linkage::LinkOnceODRLinkage); // This should make sure that the whole section is not larger than diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/type_map.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/type_map.rs index d1502d2b1e6..18a783a348a 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/type_map.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/type_map.rs @@ -276,7 +276,7 @@ pub(super) fn build_type_with_children<'ll, 'tcx>( && let ty::Adt(adt_def, args) = ty.kind() { let def_id = adt_def.did(); - // If any sub type reference the original type definition and the sub type has a type + // If any child type references the original type definition and the child type has a type // parameter that strictly contains the original parameter, the original type is a recursive // type that can expanding indefinitely. Example, // ``` @@ -285,21 +285,43 @@ pub(super) fn build_type_with_children<'ll, 'tcx>( // Item(T), // } // ``` - let is_expanding_recursive = adt_def.is_enum() - && debug_context(cx).adt_stack.borrow().iter().any(|(parent_def_id, parent_args)| { - if def_id == *parent_def_id { - args.iter().zip(parent_args.iter()).any(|(arg, parent_arg)| { - if let (Some(arg), Some(parent_arg)) = (arg.as_type(), parent_arg.as_type()) - { - arg != parent_arg && arg.contains(parent_arg) - } else { - false - } - }) - } else { - false - } - }); + let is_expanding_recursive = { + let stack = debug_context(cx).adt_stack.borrow(); + stack + .iter() + .enumerate() + .rev() + .skip(1) + .filter(|(_, (ancestor_def_id, _))| def_id == *ancestor_def_id) + .any(|(ancestor_index, (_, ancestor_args))| { + args.iter() + .zip(ancestor_args.iter()) + .filter_map(|(arg, ancestor_arg)| arg.as_type().zip(ancestor_arg.as_type())) + .any(|(arg, ancestor_arg)| + // Strictly contains. + (arg != ancestor_arg && arg.contains(ancestor_arg)) + // Check all types between current and ancestor use the + // ancestor_arg. + // Otherwise, duplicate wrappers in normal recursive type may be + // regarded as expanding. + // ``` + // struct Recursive { + // a: Box<Box<Recursive>>, + // } + // ``` + // It can produce an ADT stack like this, + // - Box<Recursive> + // - Recursive + // - Box<Box<Recursive>> + && stack[ancestor_index + 1..stack.len()].iter().all( + |(_, intermediate_args)| + intermediate_args + .iter() + .filter_map(|arg| arg.as_type()) + .any(|mid_arg| mid_arg.contains(ancestor_arg)) + )) + }) + }; if is_expanding_recursive { // FIXME: indicate that this is an expanding recursive type in stub metadata? return DINodeCreationResult::new(stub_info.metadata, false); diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/namespace.rs b/compiler/rustc_codegen_llvm/src/debuginfo/namespace.rs index b4d639368b0..1dcf4ff3062 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/namespace.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/namespace.rs @@ -38,7 +38,7 @@ pub(crate) fn item_namespace<'ll>(cx: &CodegenCx<'ll, '_>, def_id: DefId) -> &'l parent_scope, namespace_name_string.as_ptr(), namespace_name_string.len(), - llvm::False, // ExportSymbols (only relevant for C++ anonymous namespaces) + llvm::FALSE, // ExportSymbols (only relevant for C++ anonymous namespaces) ) }; diff --git a/compiler/rustc_codegen_llvm/src/intrinsic.rs b/compiler/rustc_codegen_llvm/src/intrinsic.rs index 4935f8d7dff..49d3dedbeab 100644 --- a/compiler/rustc_codegen_llvm/src/intrinsic.rs +++ b/compiler/rustc_codegen_llvm/src/intrinsic.rs @@ -330,10 +330,16 @@ impl<'ll, 'tcx> IntrinsicCallBuilderMethods<'tcx> for Builder<'_, 'll, 'tcx> { _ => bug!(), }; let ptr = args[0].immediate(); + let locality = fn_args.const_at(1).to_value().valtree.unwrap_leaf().to_i32(); self.call_intrinsic( "llvm.prefetch", &[self.val_ty(ptr)], - &[ptr, self.const_i32(rw), args[1].immediate(), self.const_i32(cache_type)], + &[ + ptr, + self.const_i32(rw), + self.const_i32(locality), + self.const_i32(cache_type), + ], ) } sym::carrying_mul_add => { diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs index 55d26a97e2d..fa2802a891f 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs @@ -11,9 +11,8 @@ //! the need for an extra cast from `*const u8` on the Rust side. #![allow(non_camel_case_types)] -#![allow(non_upper_case_globals)] -use std::fmt::Debug; +use std::fmt::{self, Debug}; use std::marker::PhantomData; use std::num::NonZero; use std::ptr; @@ -33,10 +32,59 @@ use crate::llvm; /// In the LLVM-C API, boolean values are passed as `typedef int LLVMBool`, /// which has a different ABI from Rust or C++ `bool`. -pub(crate) type Bool = c_int; +/// +/// This wrapper does not implement `PartialEq`. +/// To test the underlying boolean value, use [`Self::is_true`]. +#[derive(Clone, Copy)] +#[repr(transparent)] +pub(crate) struct Bool { + value: c_int, +} + +pub(crate) const TRUE: Bool = Bool::TRUE; +pub(crate) const FALSE: Bool = Bool::FALSE; + +impl Bool { + pub(crate) const TRUE: Self = Self { value: 1 }; + pub(crate) const FALSE: Self = Self { value: 0 }; + + pub(crate) const fn from_bool(rust_bool: bool) -> Self { + if rust_bool { Self::TRUE } else { Self::FALSE } + } + + /// Converts this LLVM-C boolean to a Rust `bool` + pub(crate) fn is_true(self) -> bool { + // Since we're interacting with a C API, follow the C convention of + // treating any nonzero value as true. + self.value != Self::FALSE.value + } +} -pub(crate) const True: Bool = 1 as Bool; -pub(crate) const False: Bool = 0 as Bool; +impl Debug for Bool { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + match self.value { + 0 => f.write_str("FALSE"), + 1 => f.write_str("TRUE"), + // As with `Self::is_true`, treat any nonzero value as true. + v => write!(f, "TRUE ({v})"), + } + } +} + +/// Convenience trait to convert `bool` to `llvm::Bool` with an explicit method call. +/// +/// Being able to write `b.to_llvm_bool()` is less noisy than `llvm::Bool::from(b)`, +/// while being more explicit and less mistake-prone than something like `b.into()`. +pub(crate) trait ToLlvmBool: Copy { + fn to_llvm_bool(self) -> llvm::Bool; +} + +impl ToLlvmBool for bool { + #[inline(always)] + fn to_llvm_bool(self) -> llvm::Bool { + llvm::Bool::from_bool(self) + } +} /// Wrapper for a raw enum value returned from LLVM's C APIs. /// @@ -251,6 +299,7 @@ pub(crate) enum AttributeKind { Writable = 42, DeadOnUnwind = 43, DeadOnReturn = 44, + CapturesReadOnly = 45, } /// LLVMIntPredicate diff --git a/compiler/rustc_codegen_llvm/src/llvm/mod.rs b/compiler/rustc_codegen_llvm/src/llvm/mod.rs index 7fea7b79a8c..6adabe53129 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/mod.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/mod.rs @@ -215,7 +215,7 @@ pub(crate) fn set_initializer(llglobal: &Value, constant_val: &Value) { } pub(crate) fn set_global_constant(llglobal: &Value, is_constant: bool) { - LLVMSetGlobalConstant(llglobal, if is_constant { ffi::True } else { ffi::False }); + LLVMSetGlobalConstant(llglobal, is_constant.to_llvm_bool()); } pub(crate) fn get_linkage(llglobal: &Value) -> Linkage { @@ -229,7 +229,7 @@ pub(crate) fn set_linkage(llglobal: &Value, linkage: Linkage) { } pub(crate) fn is_declaration(llglobal: &Value) -> bool { - unsafe { LLVMIsDeclaration(llglobal) == ffi::True } + unsafe { LLVMIsDeclaration(llglobal) }.is_true() } pub(crate) fn get_visibility(llglobal: &Value) -> Visibility { diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs index 28d2100f478..d5025bb405c 100644 --- a/compiler/rustc_codegen_llvm/src/llvm_util.rs +++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs @@ -26,7 +26,7 @@ static INIT: Once = Once::new(); pub(crate) fn init(sess: &Session) { unsafe { // Before we touch LLVM, make sure that multithreading is enabled. - if llvm::LLVMIsMultithreaded() != 1 { + if !llvm::LLVMIsMultithreaded().is_true() { bug!("LLVM compiled without support for threads"); } INIT.call_once(|| { @@ -277,6 +277,7 @@ pub(crate) fn to_llvm_features<'a>(sess: &Session, s: &'a str) -> Option<LLVMFea { None } + ("loongarch32" | "loongarch64", "32s") if get_version().0 < 21 => None, // Filter out features that are not supported by the current LLVM version ("riscv32" | "riscv64", "zacas") if get_version().0 < 20 => None, ( diff --git a/compiler/rustc_codegen_llvm/src/mono_item.rs b/compiler/rustc_codegen_llvm/src/mono_item.rs index 5075befae8a..52eefe2d4d2 100644 --- a/compiler/rustc_codegen_llvm/src/mono_item.rs +++ b/compiler/rustc_codegen_llvm/src/mono_item.rs @@ -133,7 +133,7 @@ impl CodegenCx<'_, '_> { // Thread-local variables generally don't support copy relocations. let is_thread_local_var = llvm::LLVMIsAGlobalVariable(llval) - .is_some_and(|v| llvm::LLVMIsThreadLocal(v) == llvm::True); + .is_some_and(|v| llvm::LLVMIsThreadLocal(v).is_true()); if is_thread_local_var { return false; } diff --git a/compiler/rustc_codegen_llvm/src/type_.rs b/compiler/rustc_codegen_llvm/src/type_.rs index f02d16baf94..9ecaf5f24fe 100644 --- a/compiler/rustc_codegen_llvm/src/type_.rs +++ b/compiler/rustc_codegen_llvm/src/type_.rs @@ -15,7 +15,7 @@ use rustc_target::callconv::{CastTarget, FnAbi}; use crate::abi::{FnAbiLlvmExt, LlvmType}; use crate::context::{CodegenCx, GenericCx, SCx}; pub(crate) use crate::llvm::Type; -use crate::llvm::{Bool, False, Metadata, True}; +use crate::llvm::{FALSE, Metadata, TRUE, ToLlvmBool}; use crate::type_of::LayoutLlvmExt; use crate::value::Value; use crate::{common, llvm}; @@ -53,7 +53,9 @@ impl<'ll, CX: Borrow<SCx<'ll>>> GenericCx<'ll, CX> { } pub(crate) fn set_struct_body(&self, ty: &'ll Type, els: &[&'ll Type], packed: bool) { - unsafe { llvm::LLVMStructSetBody(ty, els.as_ptr(), els.len() as c_uint, packed as Bool) } + unsafe { + llvm::LLVMStructSetBody(ty, els.as_ptr(), els.len() as c_uint, packed.to_llvm_bool()) + } } pub(crate) fn type_void(&self) -> &'ll Type { unsafe { llvm::LLVMVoidTypeInContext(self.llcx()) } @@ -139,7 +141,7 @@ impl<'ll, CX: Borrow<SCx<'ll>>> GenericCx<'ll, CX> { } pub(crate) fn type_variadic_func(&self, args: &[&'ll Type], ret: &'ll Type) -> &'ll Type { - unsafe { llvm::LLVMFunctionType(ret, args.as_ptr(), args.len() as c_uint, True) } + unsafe { llvm::LLVMFunctionType(ret, args.as_ptr(), args.len() as c_uint, TRUE) } } pub(crate) fn type_i1(&self) -> &'ll Type { @@ -152,7 +154,7 @@ impl<'ll, CX: Borrow<SCx<'ll>>> GenericCx<'ll, CX> { self.llcx(), els.as_ptr(), els.len() as c_uint, - packed as Bool, + packed.to_llvm_bool(), ) } } @@ -200,7 +202,7 @@ impl<'ll, CX: Borrow<SCx<'ll>>> BaseTypeCodegenMethods for GenericCx<'ll, CX> { } fn type_func(&self, args: &[&'ll Type], ret: &'ll Type) -> &'ll Type { - unsafe { llvm::LLVMFunctionType(ret, args.as_ptr(), args.len() as c_uint, False) } + unsafe { llvm::LLVMFunctionType(ret, args.as_ptr(), args.len() as c_uint, FALSE) } } fn type_kind(&self, ty: &'ll Type) -> TypeKind { diff --git a/compiler/rustc_codegen_ssa/messages.ftl b/compiler/rustc_codegen_ssa/messages.ftl index 42ba0154192..44b9941691a 100644 --- a/compiler/rustc_codegen_ssa/messages.ftl +++ b/compiler/rustc_codegen_ssa/messages.ftl @@ -171,9 +171,6 @@ codegen_ssa_invalid_monomorphization_unsupported_symbol = invalid monomorphizati codegen_ssa_invalid_monomorphization_unsupported_symbol_of_size = invalid monomorphization of `{$name}` intrinsic: unsupported {$symbol} from `{$in_ty}` with element `{$in_elem}` of size `{$size}` to `{$ret_ty}` -codegen_ssa_invalid_sanitize = invalid argument for `sanitize` - .note = expected one of: `address`, `kernel_address`, `cfi`, `hwaddress`, `kcfi`, `memory`, `memtag`, `shadow_call_stack`, or `thread` - codegen_ssa_invalid_windows_subsystem = invalid windows subsystem `{$subsystem}`, only `windows` and `console` are allowed codegen_ssa_ld64_unimplemented_modifier = `as-needed` modifier not implemented yet for ld64 diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs index 4ebe59dc2a7..c3777f64e9e 100644 --- a/compiler/rustc_codegen_ssa/src/back/link.rs +++ b/compiler/rustc_codegen_ssa/src/back/link.rs @@ -2435,6 +2435,13 @@ fn linker_with_args( // Passed after compiler-generated options to support manual overriding when necessary. add_user_defined_link_args(cmd, sess); + // ------------ Builtin configurable linker scripts ------------ + // The user's link args should be able to overwrite symbols in the compiler's + // linker script that were weakly defined (i.e. defined with `PROVIDE()`). For this + // to work correctly, the user needs to be able to specify linker arguments like + // `--defsym` and `--script` *before* any builtin linker scripts are evaluated. + add_link_script(cmd, sess, tmpdir, crate_type); + // ------------ Object code and libraries, order-dependent ------------ // Post-link CRT objects. @@ -2469,8 +2476,6 @@ fn add_order_independent_options( let apple_sdk_root = add_apple_sdk(cmd, sess, flavor); - add_link_script(cmd, sess, tmpdir, crate_type); - if sess.target.os == "fuchsia" && crate_type == CrateType::Executable && !matches!(flavor, LinkerFlavor::Gnu(Cc::Yes, _)) diff --git a/compiler/rustc_codegen_ssa/src/back/link/raw_dylib.rs b/compiler/rustc_codegen_ssa/src/back/link/raw_dylib.rs index b9e0c957363..509168b2cd2 100644 --- a/compiler/rustc_codegen_ssa/src/back/link/raw_dylib.rs +++ b/compiler/rustc_codegen_ssa/src/back/link/raw_dylib.rs @@ -307,11 +307,14 @@ fn create_elf_raw_dylib_stub(sess: &Session, soname: &str, symbols: &[DllImport] stub.reserve_section_headers(); stub.reserve_dynsym(); stub.reserve_dynstr(); + let verdef_count = 1 + vers.len(); + let mut dynamic_entries = 2; // DT_SONAME, DT_NULL if !vers.is_empty() { stub.reserve_gnu_versym(); - stub.reserve_gnu_verdef(1 + vers.len(), 1 + vers.len()); + stub.reserve_gnu_verdef(verdef_count, verdef_count); + dynamic_entries += 1; // DT_VERDEFNUM } - stub.reserve_dynamic(2); // DT_SONAME, DT_NULL + stub.reserve_dynamic(dynamic_entries); // First write the ELF header with the arch information. let e_machine = match (arch, sub_arch) { @@ -443,9 +446,13 @@ fn create_elf_raw_dylib_stub(sess: &Session, soname: &str, symbols: &[DllImport] // .dynamic // the DT_SONAME will be used by the linker to populate DT_NEEDED // which the loader uses to find the library. - // DT_NULL terminates the .dynamic table. stub.write_align_dynamic(); stub.write_dynamic_string(elf::DT_SONAME, soname); + // LSB section "2.7. Symbol Versioning" requires `DT_VERDEFNUM` to be reliable. + if verdef_count > 1 { + stub.write_dynamic(elf::DT_VERDEFNUM, verdef_count as u64); + } + // DT_NULL terminates the .dynamic table. stub.write_dynamic(elf::DT_NULL, 0); stub_buf diff --git a/compiler/rustc_codegen_ssa/src/base.rs b/compiler/rustc_codegen_ssa/src/base.rs index 67cd1f4cd41..8abaf201aba 100644 --- a/compiler/rustc_codegen_ssa/src/base.rs +++ b/compiler/rustc_codegen_ssa/src/base.rs @@ -858,7 +858,7 @@ pub fn is_call_from_compiler_builtins_to_upstream_monomorphization<'tcx>( instance: Instance<'tcx>, ) -> bool { fn is_llvm_intrinsic(tcx: TyCtxt<'_>, def_id: DefId) -> bool { - if let Some(name) = tcx.codegen_fn_attrs(def_id).link_name { + if let Some(name) = tcx.codegen_fn_attrs(def_id).symbol_name { name.as_str().starts_with("llvm.") } else { false diff --git a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs index bf14c02a09c..6b0bd64102c 100644 --- a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs +++ b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs @@ -6,7 +6,6 @@ use rustc_ast::{LitKind, MetaItem, MetaItemInner, attr}; use rustc_hir::attrs::{AttributeKind, InlineAttr, InstructionSetAttr, UsedBy}; use rustc_hir::def::DefKind; use rustc_hir::def_id::{DefId, LOCAL_CRATE, LocalDefId}; -use rustc_hir::weak_lang_items::WEAK_LANG_ITEMS; use rustc_hir::{self as hir, Attribute, LangItem, find_attr, lang_items}; use rustc_middle::middle::codegen_fn_attrs::{ CodegenFnAttrFlags, CodegenFnAttrs, PatchableFunctionEntry, @@ -156,7 +155,7 @@ fn process_builtin_attrs( match p { AttributeKind::Cold(_) => codegen_fn_attrs.flags |= CodegenFnAttrFlags::COLD, AttributeKind::ExportName { name, .. } => { - codegen_fn_attrs.export_name = Some(*name) + codegen_fn_attrs.symbol_name = Some(*name) } AttributeKind::Inline(inline, span) => { codegen_fn_attrs.inline = *inline; @@ -164,7 +163,13 @@ fn process_builtin_attrs( } AttributeKind::Naked(_) => codegen_fn_attrs.flags |= CodegenFnAttrFlags::NAKED, AttributeKind::Align { align, .. } => codegen_fn_attrs.alignment = Some(*align), - AttributeKind::LinkName { name, .. } => codegen_fn_attrs.link_name = Some(*name), + AttributeKind::LinkName { name, .. } => { + // FIXME Remove check for foreign functions once #[link_name] on non-foreign + // functions is a hard error + if tcx.is_foreign_item(did) { + codegen_fn_attrs.symbol_name = Some(*name); + } + } AttributeKind::LinkOrdinal { ordinal, span } => { codegen_fn_attrs.link_ordinal = Some(*ordinal); interesting_spans.link_ordinal = Some(*span); @@ -188,7 +193,7 @@ fn process_builtin_attrs( } } AttributeKind::Optimize(optimize, _) => codegen_fn_attrs.optimize = *optimize, - AttributeKind::TargetFeature(features, attr_span) => { + AttributeKind::TargetFeature { features, attr_span, was_forced } => { let Some(sig) = tcx.hir_node_by_def_id(did).fn_sig() else { tcx.dcx().span_delayed_bug(*attr_span, "target_feature applied to non-fn"); continue; @@ -196,7 +201,7 @@ fn process_builtin_attrs( let safe_target_features = matches!(sig.header.safety, hir::HeaderSafety::SafeTargetFeatures); codegen_fn_attrs.safe_target_features = safe_target_features; - if safe_target_features { + if safe_target_features && !was_forced { if tcx.sess.target.is_like_wasm || tcx.sess.opts.actually_rustdoc { // The `#[target_feature]` attribute is allowed on // WebAssembly targets on all functions. Prior to stabilizing @@ -227,6 +232,7 @@ fn process_builtin_attrs( tcx, did, features, + *was_forced, rust_target_features, &mut codegen_fn_attrs.target_features, ); @@ -287,6 +293,9 @@ fn process_builtin_attrs( codegen_fn_attrs.linkage = linkage; } } + AttributeKind::Sanitize { span, .. } => { + interesting_spans.sanitize = Some(*span); + } _ => {} } } @@ -304,7 +313,6 @@ fn process_builtin_attrs( codegen_fn_attrs.flags |= CodegenFnAttrFlags::ALLOCATOR_ZEROED } sym::thread_local => codegen_fn_attrs.flags |= CodegenFnAttrFlags::THREAD_LOCAL, - sym::sanitize => interesting_spans.sanitize = Some(attr.span()), sym::instruction_set => { codegen_fn_attrs.instruction_set = parse_instruction_set_attr(tcx, attr) } @@ -382,7 +390,7 @@ fn apply_overrides(tcx: TyCtxt<'_>, did: LocalDefId, codegen_fn_attrs: &mut Code // * `#[rustc_std_internal_symbol]` mangles the symbol name in a special way // both for exports and imports through foreign items. This is handled further, // during symbol mangling logic. - } else if codegen_fn_attrs.link_name.is_some() { + } else if codegen_fn_attrs.symbol_name.is_some() { // * This can be overridden with the `#[link_name]` attribute } else { // NOTE: there's one more exception that we cannot apply here. On wasm, @@ -437,7 +445,7 @@ fn check_result( } // error when specifying link_name together with link_ordinal - if let Some(_) = codegen_fn_attrs.link_name + if let Some(_) = codegen_fn_attrs.symbol_name && let Some(_) = codegen_fn_attrs.link_ordinal { let msg = "cannot use `#[link_name]` with `#[link_ordinal]`"; @@ -457,7 +465,7 @@ fn check_result( .collect(), ) { let span = - find_attr!(tcx.get_all_attrs(did), AttributeKind::TargetFeature(_, span) => *span) + find_attr!(tcx.get_all_attrs(did), AttributeKind::TargetFeature{attr_span: span, ..} => *span) .unwrap_or_else(|| tcx.def_span(did)); tcx.dcx() @@ -484,14 +492,11 @@ fn handle_lang_items( // strippable by the linker. // // Additionally weak lang items have predetermined symbol names. - if let Some(lang_item) = lang_item { - if WEAK_LANG_ITEMS.contains(&lang_item) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::RUSTC_STD_INTERNAL_SYMBOL; - } - if let Some(link_name) = lang_item.link_name() { - codegen_fn_attrs.export_name = Some(link_name); - codegen_fn_attrs.link_name = Some(link_name); - } + if let Some(lang_item) = lang_item + && let Some(link_name) = lang_item.link_name() + { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::RUSTC_STD_INTERNAL_SYMBOL; + codegen_fn_attrs.symbol_name = Some(link_name); } // error when using no_mangle on a lang item item @@ -557,79 +562,9 @@ fn opt_trait_item(tcx: TyCtxt<'_>, def_id: DefId) -> Option<DefId> { } } -/// For an attr that has the `sanitize` attribute, read the list of -/// disabled sanitizers. `current_attr` holds the information about -/// previously parsed attributes. -fn parse_sanitize_attr( - tcx: TyCtxt<'_>, - attr: &Attribute, - current_attr: SanitizerSet, -) -> SanitizerSet { - let mut result = current_attr; - if let Some(list) = attr.meta_item_list() { - for item in list.iter() { - let MetaItemInner::MetaItem(set) = item else { - tcx.dcx().emit_err(errors::InvalidSanitize { span: attr.span() }); - break; - }; - let segments = set.path.segments.iter().map(|x| x.ident.name).collect::<Vec<_>>(); - match segments.as_slice() { - // Similar to clang, sanitize(address = ..) and - // sanitize(kernel_address = ..) control both ASan and KASan - // Source: https://reviews.llvm.org/D44981. - [sym::address] | [sym::kernel_address] if set.value_str() == Some(sym::off) => { - result |= SanitizerSet::ADDRESS | SanitizerSet::KERNELADDRESS - } - [sym::address] | [sym::kernel_address] if set.value_str() == Some(sym::on) => { - result &= !SanitizerSet::ADDRESS; - result &= !SanitizerSet::KERNELADDRESS; - } - [sym::cfi] if set.value_str() == Some(sym::off) => result |= SanitizerSet::CFI, - [sym::cfi] if set.value_str() == Some(sym::on) => result &= !SanitizerSet::CFI, - [sym::kcfi] if set.value_str() == Some(sym::off) => result |= SanitizerSet::KCFI, - [sym::kcfi] if set.value_str() == Some(sym::on) => result &= !SanitizerSet::KCFI, - [sym::memory] if set.value_str() == Some(sym::off) => { - result |= SanitizerSet::MEMORY - } - [sym::memory] if set.value_str() == Some(sym::on) => { - result &= !SanitizerSet::MEMORY - } - [sym::memtag] if set.value_str() == Some(sym::off) => { - result |= SanitizerSet::MEMTAG - } - [sym::memtag] if set.value_str() == Some(sym::on) => { - result &= !SanitizerSet::MEMTAG - } - [sym::shadow_call_stack] if set.value_str() == Some(sym::off) => { - result |= SanitizerSet::SHADOWCALLSTACK - } - [sym::shadow_call_stack] if set.value_str() == Some(sym::on) => { - result &= !SanitizerSet::SHADOWCALLSTACK - } - [sym::thread] if set.value_str() == Some(sym::off) => { - result |= SanitizerSet::THREAD - } - [sym::thread] if set.value_str() == Some(sym::on) => { - result &= !SanitizerSet::THREAD - } - [sym::hwaddress] if set.value_str() == Some(sym::off) => { - result |= SanitizerSet::HWADDRESS - } - [sym::hwaddress] if set.value_str() == Some(sym::on) => { - result &= !SanitizerSet::HWADDRESS - } - _ => { - tcx.dcx().emit_err(errors::InvalidSanitize { span: attr.span() }); - } - } - } - } - result -} - fn disabled_sanitizers_for(tcx: TyCtxt<'_>, did: LocalDefId) -> SanitizerSet { // Backtrack to the crate root. - let disabled = match tcx.opt_local_parent(did) { + let mut disabled = match tcx.opt_local_parent(did) { // Check the parent (recursively). Some(parent) => tcx.disabled_sanitizers_for(parent), // We reached the crate root without seeing an attribute, so @@ -638,8 +573,17 @@ fn disabled_sanitizers_for(tcx: TyCtxt<'_>, did: LocalDefId) -> SanitizerSet { }; // Check for a sanitize annotation directly on this def. - if let Some(attr) = tcx.get_attr(did, sym::sanitize) { - return parse_sanitize_attr(tcx, attr, disabled); + if let Some((on_set, off_set)) = find_attr!(tcx.get_all_attrs(did), AttributeKind::Sanitize {on_set, off_set, ..} => (on_set, off_set)) + { + // the on set is the set of sanitizers explicitly enabled. + // we mask those out since we want the set of disabled sanitizers here + disabled &= !*on_set; + // the off set is the set of sanitizers explicitly disabled. + // we or those in here. + disabled |= *off_set; + // the on set and off set are distjoint since there's a third option: unset. + // a node may not set the sanitizer setting in which case it inherits from parents. + // the code above in this function does this backtracking } disabled } diff --git a/compiler/rustc_codegen_ssa/src/errors.rs b/compiler/rustc_codegen_ssa/src/errors.rs index 209c78ddeda..fb5a8205140 100644 --- a/compiler/rustc_codegen_ssa/src/errors.rs +++ b/compiler/rustc_codegen_ssa/src/errors.rs @@ -1121,14 +1121,6 @@ impl IntoDiagArg for ExpectedPointerMutability { } #[derive(Diagnostic)] -#[diag(codegen_ssa_invalid_sanitize)] -#[note] -pub(crate) struct InvalidSanitize { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] #[diag(codegen_ssa_target_feature_safe_trait)] pub(crate) struct TargetFeatureSafeTrait { #[primary_span] diff --git a/compiler/rustc_codegen_ssa/src/target_features.rs b/compiler/rustc_codegen_ssa/src/target_features.rs index 7e4341a8236..54584999d61 100644 --- a/compiler/rustc_codegen_ssa/src/target_features.rs +++ b/compiler/rustc_codegen_ssa/src/target_features.rs @@ -3,7 +3,7 @@ use rustc_data_structures::unord::{UnordMap, UnordSet}; use rustc_hir::attrs::InstructionSetAttr; use rustc_hir::def::DefKind; use rustc_hir::def_id::{DefId, LOCAL_CRATE, LocalDefId}; -use rustc_middle::middle::codegen_fn_attrs::TargetFeature; +use rustc_middle::middle::codegen_fn_attrs::{TargetFeature, TargetFeatureKind}; use rustc_middle::query::Providers; use rustc_middle::ty::TyCtxt; use rustc_session::Session; @@ -22,6 +22,7 @@ pub(crate) fn from_target_feature_attr( tcx: TyCtxt<'_>, did: LocalDefId, features: &[(Symbol, Span)], + was_forced: bool, rust_target_features: &UnordMap<String, target_features::Stability>, target_features: &mut Vec<TargetFeature>, ) { @@ -88,7 +89,14 @@ pub(crate) fn from_target_feature_attr( } } } - target_features.push(TargetFeature { name, implied: name != feature }) + let kind = if name != feature { + TargetFeatureKind::Implied + } else if was_forced { + TargetFeatureKind::Forced + } else { + TargetFeatureKind::Enabled + }; + target_features.push(TargetFeature { name, kind }) } } } @@ -180,6 +188,7 @@ fn parse_rust_feature_flag<'a>( while let Some(new_feature) = new_features.pop() { if features.insert(new_feature) { if let Some(implied_features) = inverse_implied_features.get(&new_feature) { + #[allow(rustc::potential_query_instability)] new_features.extend(implied_features) } } diff --git a/compiler/rustc_const_eval/src/const_eval/machine.rs b/compiler/rustc_const_eval/src/const_eval/machine.rs index da954cf4ed7..fccb6b171b1 100644 --- a/compiler/rustc_const_eval/src/const_eval/machine.rs +++ b/compiler/rustc_const_eval/src/const_eval/machine.rs @@ -280,22 +280,110 @@ impl<'tcx> CompileTimeInterpCx<'tcx> { interp_ok(match (a, b) { // Comparisons between integers are always known. (Scalar::Int(a), Scalar::Int(b)) => (a == b) as u8, - // Comparisons of null with an arbitrary scalar can be known if `scalar_may_be_null` - // indicates that the scalar can definitely *not* be null. - (Scalar::Int(int), ptr) | (ptr, Scalar::Int(int)) - if int.is_null() && !self.scalar_may_be_null(ptr)? => - { - 0 + // Comparing a pointer `ptr` with an integer `int` is equivalent to comparing + // `ptr-int` with null, so we can reduce this case to a `scalar_may_be_null` test. + (Scalar::Int(int), Scalar::Ptr(ptr, _)) | (Scalar::Ptr(ptr, _), Scalar::Int(int)) => { + let int = int.to_target_usize(*self.tcx); + // The `wrapping_neg` here may produce a value that is not + // a valid target usize any more... but `wrapping_offset` handles that correctly. + let offset_ptr = ptr.wrapping_offset(Size::from_bytes(int.wrapping_neg()), self); + if !self.scalar_may_be_null(Scalar::from_pointer(offset_ptr, self))? { + // `ptr.wrapping_sub(int)` is definitely not equal to `0`, so `ptr != int` + 0 + } else { + // `ptr.wrapping_sub(int)` could be equal to `0`, but might not be, + // so we cannot know for sure if `ptr == int` or not + 2 + } + } + (Scalar::Ptr(a, _), Scalar::Ptr(b, _)) => { + let (a_prov, a_offset) = a.prov_and_relative_offset(); + let (b_prov, b_offset) = b.prov_and_relative_offset(); + let a_allocid = a_prov.alloc_id(); + let b_allocid = b_prov.alloc_id(); + let a_info = self.get_alloc_info(a_allocid); + let b_info = self.get_alloc_info(b_allocid); + + // Check if the pointers cannot be equal due to alignment + if a_info.align > Align::ONE && b_info.align > Align::ONE { + let min_align = Ord::min(a_info.align.bytes(), b_info.align.bytes()); + let a_residue = a_offset.bytes() % min_align; + let b_residue = b_offset.bytes() % min_align; + if a_residue != b_residue { + // If the two pointers have a different residue modulo their + // common alignment, they cannot be equal. + return interp_ok(0); + } + // The pointers have the same residue modulo their common alignment, + // so they could be equal. Try the other checks. + } + + if let (Some(GlobalAlloc::Static(a_did)), Some(GlobalAlloc::Static(b_did))) = ( + self.tcx.try_get_global_alloc(a_allocid), + self.tcx.try_get_global_alloc(b_allocid), + ) { + if a_allocid == b_allocid { + debug_assert_eq!( + a_did, b_did, + "different static item DefIds had same AllocId? {a_allocid:?} == {b_allocid:?}, {a_did:?} != {b_did:?}" + ); + // Comparing two pointers into the same static. As per + // https://doc.rust-lang.org/nightly/reference/items/static-items.html#r-items.static.intro + // a static cannot be duplicated, so if two pointers are into the same + // static, they are equal if and only if their offsets are equal. + (a_offset == b_offset) as u8 + } else { + debug_assert_ne!( + a_did, b_did, + "same static item DefId had two different AllocIds? {a_allocid:?} != {b_allocid:?}, {a_did:?} == {b_did:?}" + ); + // Comparing two pointers into the different statics. + // We can never determine for sure that two pointers into different statics + // are *equal*, but we can know that they are *inequal* if they are both + // strictly in-bounds (i.e. in-bounds and not one-past-the-end) of + // their respective static, as different non-zero-sized statics cannot + // overlap or be deduplicated as per + // https://doc.rust-lang.org/nightly/reference/items/static-items.html#r-items.static.intro + // (non-deduplication), and + // https://doc.rust-lang.org/nightly/reference/items/static-items.html#r-items.static.storage-disjointness + // (non-overlapping). + if a_offset < a_info.size && b_offset < b_info.size { + 0 + } else { + // Otherwise, conservatively say we don't know. + // There are some cases we could still return `0` for, e.g. + // if the pointers being equal would require their statics to overlap + // one or more bytes, but for simplicity we currently only check + // strictly in-bounds pointers. + 2 + } + } + } else { + // All other cases we conservatively say we don't know. + // + // For comparing statics to non-statics, as per https://doc.rust-lang.org/nightly/reference/items/static-items.html#r-items.static.storage-disjointness + // immutable statics can overlap with other kinds of allocations sometimes. + // + // FIXME: We could be more decisive for (non-zero-sized) mutable statics, + // which cannot overlap with other kinds of allocations. + // + // Functions and vtables can be duplicated and deduplicated, so we + // cannot be sure of runtime equality of pointers to the same one, or the + // runtime inequality of pointers to different ones (see e.g. #73722), + // so comparing those should return 2, whether they are the same allocation + // or not. + // + // `GlobalAlloc::TypeId` exists mostly to prevent consteval from comparing + // `TypeId`s, so comparing those should always return 2, whether they are the + // same allocation or not. + // + // FIXME: We could revisit comparing pointers into the same + // `GlobalAlloc::Memory` once https://github.com/rust-lang/rust/issues/128775 + // is fixed (but they can be deduplicated, so comparing pointers into different + // ones should return 2). + 2 + } } - // Other ways of comparing integers and pointers can never be known for sure. - (Scalar::Int { .. }, Scalar::Ptr(..)) | (Scalar::Ptr(..), Scalar::Int { .. }) => 2, - // FIXME: return a `1` for when both sides are the same pointer, *except* that - // some things (like functions and vtables) do not have stable addresses - // so we need to be careful around them (see e.g. #73722). - // FIXME: return `0` for at least some comparisons where we can reliably - // determine the result of runtime inequality tests at compile-time. - // Examples include comparison of addresses in different static items. - (Scalar::Ptr(..), Scalar::Ptr(..)) => 2, }) } } diff --git a/compiler/rustc_const_eval/src/interpret/call.rs b/compiler/rustc_const_eval/src/interpret/call.rs index 64cb934ac8d..4cb88d44e1b 100644 --- a/compiler/rustc_const_eval/src/interpret/call.rs +++ b/compiler/rustc_const_eval/src/interpret/call.rs @@ -27,8 +27,9 @@ use crate::{enter_trace_span, fluent_generated as fluent}; pub enum FnArg<'tcx, Prov: Provenance = CtfeProvenance> { /// Pass a copy of the given operand. Copy(OpTy<'tcx, Prov>), - /// Allow for the argument to be passed in-place: destroy the value originally stored at that place and - /// make the place inaccessible for the duration of the function call. + /// Allow for the argument to be passed in-place: destroy the value originally stored at that + /// place and make the place inaccessible for the duration of the function call. This *must* be + /// an in-memory place so that we can do the proper alias checks. InPlace(MPlaceTy<'tcx, Prov>), } @@ -379,6 +380,11 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { } } + // *Before* pushing the new frame, determine whether the return destination is in memory. + // Need to use `place_to_op` to be *sure* we get the mplace if there is one. + let destination_mplace = self.place_to_op(destination)?.as_mplace_or_imm().left(); + + // Push the "raw" frame -- this leaves locals uninitialized. self.push_stack_frame_raw(instance, body, destination, cont)?; // If an error is raised here, pop the frame again to get an accurate backtrace. @@ -496,7 +502,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { // Protect return place for in-place return value passing. // We only need to protect anything if this is actually an in-memory place. - if let Left(mplace) = destination.as_mplace_or_local() { + if let Some(mplace) = destination_mplace { M::protect_in_place_function_argument(self, &mplace)?; } diff --git a/compiler/rustc_const_eval/src/interpret/eval_context.rs b/compiler/rustc_const_eval/src/interpret/eval_context.rs index a8a1ac1c980..9681d89ce35 100644 --- a/compiler/rustc_const_eval/src/interpret/eval_context.rs +++ b/compiler/rustc_const_eval/src/interpret/eval_context.rs @@ -325,8 +325,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { let _trace = enter_trace_span!( M, "instantiate_from_frame_and_normalize_erasing_regions", - "{}", - frame.instance + %frame.instance ); frame .instance @@ -583,6 +582,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { span: Span, layout: Option<TyAndLayout<'tcx>>, ) -> InterpResult<'tcx, OpTy<'tcx, M::Provenance>> { + let _trace = enter_trace_span!(M, const_eval::eval_mir_constant, ?val); let const_val = val.eval(*self.tcx, self.typing_env, span).map_err(|err| { if M::ALL_CONSTS_ARE_PRECHECKED { match err { diff --git a/compiler/rustc_const_eval/src/interpret/place.rs b/compiler/rustc_const_eval/src/interpret/place.rs index e7fe4c0b34f..a86fdf80f60 100644 --- a/compiler/rustc_const_eval/src/interpret/place.rs +++ b/compiler/rustc_const_eval/src/interpret/place.rs @@ -234,6 +234,12 @@ impl<'tcx, Prov: Provenance> PlaceTy<'tcx, Prov> { } /// A place is either an mplace or some local. + /// + /// Note that the return value can be different even for logically identical places! + /// Specifically, if a local is stored in-memory, this may return `Local` or `MPlaceTy` + /// depending on how the place was constructed. In other words, seeing `Local` here does *not* + /// imply that this place does not point to memory. Every caller must therefore always handle + /// both cases. #[inline(always)] pub fn as_mplace_or_local( &self, diff --git a/compiler/rustc_const_eval/src/interpret/stack.rs b/compiler/rustc_const_eval/src/interpret/stack.rs index 73cc87508ef..7cabfd96121 100644 --- a/compiler/rustc_const_eval/src/interpret/stack.rs +++ b/compiler/rustc_const_eval/src/interpret/stack.rs @@ -20,7 +20,7 @@ use super::{ MemoryKind, Operand, PlaceTy, Pointer, Provenance, ReturnAction, Scalar, from_known_layout, interp_ok, throw_ub, throw_unsup, }; -use crate::errors; +use crate::{enter_trace_span, errors}; // The Phantomdata exists to prevent this type from being `Send`. If it were sent across a thread // boundary and dropped in the other thread, it would exit the span in the other thread. @@ -386,6 +386,9 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { // Make sure all the constants required by this frame evaluate successfully (post-monomorphization check). for &const_ in body.required_consts() { + // We can't use `eval_mir_constant` here as that assumes that all required consts have + // already been checked, so we need a separate tracing call. + let _trace = enter_trace_span!(M, const_eval::required_consts, ?const_.const_); let c = self.instantiate_from_current_frame_and_normalize_erasing_regions(const_.const_)?; c.eval(*self.tcx, self.typing_env, const_.span).map_err(|err| { diff --git a/compiler/rustc_const_eval/src/interpret/step.rs b/compiler/rustc_const_eval/src/interpret/step.rs index f1995b3f132..23d362de308 100644 --- a/compiler/rustc_const_eval/src/interpret/step.rs +++ b/compiler/rustc_const_eval/src/interpret/step.rs @@ -2,8 +2,11 @@ //! //! The main entry point is the `step` method. +use std::iter; + use either::Either; use rustc_abi::{FIRST_VARIANT, FieldIdx}; +use rustc_data_structures::fx::FxHashSet; use rustc_index::IndexSlice; use rustc_middle::ty::{self, Instance, Ty}; use rustc_middle::{bug, mir, span_bug}; @@ -389,8 +392,9 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { /// Evaluate the arguments of a function call fn eval_fn_call_argument( - &self, + &mut self, op: &mir::Operand<'tcx>, + move_definitely_disjoint: bool, ) -> InterpResult<'tcx, FnArg<'tcx, M::Provenance>> { interp_ok(match op { mir::Operand::Copy(_) | mir::Operand::Constant(_) => { @@ -399,24 +403,19 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { FnArg::Copy(op) } mir::Operand::Move(place) => { - // If this place lives in memory, preserve its location. - // We call `place_to_op` which will be an `MPlaceTy` whenever there exists - // an mplace for this place. (This is in contrast to `PlaceTy::as_mplace_or_local` - // which can return a local even if that has an mplace.) let place = self.eval_place(*place)?; - let op = self.place_to_op(&place)?; - - match op.as_mplace_or_imm() { - Either::Left(mplace) => FnArg::InPlace(mplace), - Either::Right(_imm) => { - // This argument doesn't live in memory, so there's no place - // to make inaccessible during the call. - // We rely on there not being any stray `PlaceTy` that would let the - // caller directly access this local! - // This is also crucial for tail calls, where we want the `FnArg` to - // stay valid when the old stack frame gets popped. - FnArg::Copy(op) + if move_definitely_disjoint { + // We still have to ensure that no *other* pointers are used to access this place, + // so *if* it is in memory then we have to treat it as `InPlace`. + // Use `place_to_op` to guarantee that we notice it being in memory. + let op = self.place_to_op(&place)?; + match op.as_mplace_or_imm() { + Either::Left(mplace) => FnArg::InPlace(mplace), + Either::Right(_imm) => FnArg::Copy(op), } + } else { + // We have to force this into memory to detect aliasing among `Move` arguments. + FnArg::InPlace(self.force_allocation(&place)?) } } }) @@ -425,18 +424,53 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { /// Shared part of `Call` and `TailCall` implementation — finding and evaluating all the /// necessary information about callee and arguments to make a call. fn eval_callee_and_args( - &self, + &mut self, terminator: &mir::Terminator<'tcx>, func: &mir::Operand<'tcx>, args: &[Spanned<mir::Operand<'tcx>>], + dest: &mir::Place<'tcx>, ) -> InterpResult<'tcx, EvaluatedCalleeAndArgs<'tcx, M>> { let func = self.eval_operand(func, None)?; + + // Evaluating function call arguments. The tricky part here is dealing with `Move` + // arguments: we have to ensure no two such arguments alias. This would be most easily done + // by just forcing them all into memory and then doing the usual in-place argument + // protection, but then we'd force *a lot* of arguments into memory. So we do some syntactic + // pre-processing here where if all `move` arguments are syntactically distinct local + // variables (and none is indirect), we can skip the in-memory forcing. + // We have to include `dest` in that list so that we can detect aliasing of an in-place + // argument with the return place. + let move_definitely_disjoint = 'move_definitely_disjoint: { + let mut previous_locals = FxHashSet::<mir::Local>::default(); + for place in args + .iter() + .filter_map(|a| { + // We only have to care about `Move` arguments. + if let mir::Operand::Move(place) = &a.node { Some(place) } else { None } + }) + .chain(iter::once(dest)) + { + if place.is_indirect_first_projection() { + // An indirect in-place argument could alias with anything else... + break 'move_definitely_disjoint false; + } + if !previous_locals.insert(place.local) { + // This local is the base for two arguments! They might overlap. + break 'move_definitely_disjoint false; + } + } + // We found no violation so they are all definitely disjoint. + true + }; let args = args .iter() - .map(|arg| self.eval_fn_call_argument(&arg.node)) + .map(|arg| self.eval_fn_call_argument(&arg.node, move_definitely_disjoint)) .collect::<InterpResult<'tcx, Vec<_>>>()?; - let fn_sig_binder = func.layout.ty.fn_sig(*self.tcx); + let fn_sig_binder = { + let _trace = enter_trace_span!(M, "fn_sig", ty = ?func.layout.ty.kind()); + func.layout.ty.fn_sig(*self.tcx) + }; let fn_sig = self.tcx.normalize_erasing_late_bound_regions(self.typing_env, fn_sig_binder); let extra_args = &args[fn_sig.inputs().len()..]; let extra_args = @@ -519,7 +553,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { let old_loc = self.frame().loc; let EvaluatedCalleeAndArgs { callee, args, fn_sig, fn_abi, with_caller_location } = - self.eval_callee_and_args(terminator, func, args)?; + self.eval_callee_and_args(terminator, func, args, &destination)?; let destination = self.eval_place(destination)?; self.init_fn_call( @@ -542,7 +576,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { let old_frame_idx = self.frame_idx(); let EvaluatedCalleeAndArgs { callee, args, fn_sig, fn_abi, with_caller_location } = - self.eval_callee_and_args(terminator, func, args)?; + self.eval_callee_and_args(terminator, func, args, &mir::Place::return_place())?; self.init_fn_tail_call(callee, (fn_sig.abi, fn_abi), &args, with_caller_location)?; diff --git a/compiler/rustc_const_eval/src/interpret/validity.rs b/compiler/rustc_const_eval/src/interpret/validity.rs index 5e8bee65706..02e3d90f4af 100644 --- a/compiler/rustc_const_eval/src/interpret/validity.rs +++ b/compiler/rustc_const_eval/src/interpret/validity.rs @@ -1418,7 +1418,9 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { let _trace = enter_trace_span!( M, "validate_operand", - "recursive={recursive}, reset_provenance_and_padding={reset_provenance_and_padding}, val={val:?}" + recursive, + reset_provenance_and_padding, + ?val, ); // Note that we *could* actually be in CTFE here with `-Zextra-const-ub-checks`, but it's diff --git a/compiler/rustc_const_eval/src/util/type_name.rs b/compiler/rustc_const_eval/src/util/type_name.rs index 13cc607135a..2ae6655901b 100644 --- a/compiler/rustc_const_eval/src/util/type_name.rs +++ b/compiler/rustc_const_eval/src/util/type_name.rs @@ -1,7 +1,7 @@ use std::fmt::Write; use rustc_data_structures::intern::Interned; -use rustc_hir::def_id::CrateNum; +use rustc_hir::def_id::{CrateNum, DefId}; use rustc_hir::definitions::DisambiguatedDefPathData; use rustc_middle::bug; use rustc_middle::ty::print::{PrettyPrinter, PrintError, Printer}; @@ -132,15 +132,44 @@ impl<'tcx> Printer<'tcx> for TypeNamePrinter<'tcx> { Ok(()) } } + + fn print_coroutine_with_kind( + &mut self, + def_id: DefId, + parent_args: &'tcx [GenericArg<'tcx>], + kind: Ty<'tcx>, + ) -> Result<(), PrintError> { + self.print_def_path(def_id, parent_args)?; + + let ty::Coroutine(_, args) = self.tcx.type_of(def_id).instantiate_identity().kind() else { + // Could be `ty::Error`. + return Ok(()); + }; + + let default_kind = args.as_coroutine().kind_ty(); + + match kind.to_opt_closure_kind() { + _ if kind == default_kind => { + // No need to mark the closure if it's the deduced coroutine kind. + } + Some(ty::ClosureKind::Fn) | None => { + // Should never happen. Just don't mark anything rather than panicking. + } + Some(ty::ClosureKind::FnMut) => self.path.push_str("::{{call_mut}}"), + Some(ty::ClosureKind::FnOnce) => self.path.push_str("::{{call_once}}"), + } + + Ok(()) + } } impl<'tcx> PrettyPrinter<'tcx> for TypeNamePrinter<'tcx> { - fn should_print_optional_region(&self, _region: ty::Region<'_>) -> bool { + fn should_print_optional_region(&self, region: ty::Region<'_>) -> bool { // Bound regions are always printed (as `'_`), which gives some idea that they are special, // even though the `for` is omitted by the pretty printer. // E.g. `for<'a, 'b> fn(&'a u32, &'b u32)` is printed as "fn(&'_ u32, &'_ u32)". - match _region.kind() { - ty::ReErased => false, + match region.kind() { + ty::ReErased | ty::ReEarlyParam(_) => false, ty::ReBound(..) => true, _ => unreachable!(), } diff --git a/compiler/rustc_data_structures/src/lib.rs b/compiler/rustc_data_structures/src/lib.rs index 53178d09348..17da3ea83c8 100644 --- a/compiler/rustc_data_structures/src/lib.rs +++ b/compiler/rustc_data_structures/src/lib.rs @@ -77,6 +77,7 @@ pub mod thinvec; pub mod thousands; pub mod transitive_relation; pub mod unhash; +pub mod union_find; pub mod unord; pub mod vec_cache; pub mod work_queue; diff --git a/compiler/rustc_mir_transform/src/coverage/counters/union_find.rs b/compiler/rustc_data_structures/src/union_find.rs index a826a953fa6..ef73cd7ab40 100644 --- a/compiler/rustc_mir_transform/src/coverage/counters/union_find.rs +++ b/compiler/rustc_data_structures/src/union_find.rs @@ -9,7 +9,7 @@ mod tests; /// Simple implementation of a union-find data structure, i.e. a disjoint-set /// forest. #[derive(Debug)] -pub(crate) struct UnionFind<Key: Idx> { +pub struct UnionFind<Key: Idx> { table: IndexVec<Key, UnionFindEntry<Key>>, } @@ -28,7 +28,7 @@ struct UnionFindEntry<Key> { impl<Key: Idx> UnionFind<Key> { /// Creates a new disjoint-set forest containing the keys `0..num_keys`. /// Initially, every key is part of its own one-element set. - pub(crate) fn new(num_keys: usize) -> Self { + pub fn new(num_keys: usize) -> Self { // Initially, every key is the root of its own set, so its parent is itself. Self { table: IndexVec::from_fn_n(|key| UnionFindEntry { parent: key, rank: 0 }, num_keys) } } @@ -38,7 +38,7 @@ impl<Key: Idx> UnionFind<Key> { /// /// Also updates internal data structures to make subsequent `find` /// operations faster. - pub(crate) fn find(&mut self, key: Key) -> Key { + pub fn find(&mut self, key: Key) -> Key { // Loop until we find a key that is its own parent. let mut curr = key; while let parent = self.table[curr].parent @@ -60,7 +60,7 @@ impl<Key: Idx> UnionFind<Key> { /// Merges the set containing `a` and the set containing `b` into one set. /// /// Returns the common root of both keys, after the merge. - pub(crate) fn unify(&mut self, a: Key, b: Key) -> Key { + pub fn unify(&mut self, a: Key, b: Key) -> Key { let mut a = self.find(a); let mut b = self.find(b); @@ -90,7 +90,7 @@ impl<Key: Idx> UnionFind<Key> { /// Takes a "snapshot" of the current state of this disjoint-set forest, in /// the form of a vector that directly maps each key to its current root. - pub(crate) fn snapshot(&mut self) -> IndexVec<Key, Key> { + pub fn snapshot(&mut self) -> IndexVec<Key, Key> { self.table.indices().map(|key| self.find(key)).collect() } } diff --git a/compiler/rustc_mir_transform/src/coverage/counters/union_find/tests.rs b/compiler/rustc_data_structures/src/union_find/tests.rs index 34a4e4f8e6e..34a4e4f8e6e 100644 --- a/compiler/rustc_mir_transform/src/coverage/counters/union_find/tests.rs +++ b/compiler/rustc_data_structures/src/union_find/tests.rs diff --git a/compiler/rustc_error_messages/Cargo.toml b/compiler/rustc_error_messages/Cargo.toml index 0951859fa53..552ad672752 100644 --- a/compiler/rustc_error_messages/Cargo.toml +++ b/compiler/rustc_error_messages/Cargo.toml @@ -11,6 +11,8 @@ icu_list = "1.2" icu_locid = "1.2" icu_provider_adapters = "1.2" intl-memoizer = "0.5.1" +rustc_ast = { path = "../rustc_ast" } +rustc_ast_pretty = { path = "../rustc_ast_pretty" } rustc_baked_icu_data = { path = "../rustc_baked_icu_data" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_macros = { path = "../rustc_macros" } diff --git a/compiler/rustc_error_messages/src/diagnostic_impls.rs b/compiler/rustc_error_messages/src/diagnostic_impls.rs new file mode 100644 index 00000000000..3b664cce577 --- /dev/null +++ b/compiler/rustc_error_messages/src/diagnostic_impls.rs @@ -0,0 +1,205 @@ +use std::backtrace::Backtrace; +use std::borrow::Cow; +use std::fmt; +use std::num::ParseIntError; +use std::path::{Path, PathBuf}; +use std::process::ExitStatus; + +use rustc_ast as ast; +use rustc_ast_pretty::pprust; +use rustc_span::edition::Edition; + +use crate::{DiagArgValue, IntoDiagArg}; + +pub struct DiagArgFromDisplay<'a>(pub &'a dyn fmt::Display); + +impl IntoDiagArg for DiagArgFromDisplay<'_> { + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { + self.0.to_string().into_diag_arg(path) + } +} + +impl<'a> From<&'a dyn fmt::Display> for DiagArgFromDisplay<'a> { + fn from(t: &'a dyn fmt::Display) -> Self { + DiagArgFromDisplay(t) + } +} + +impl<'a, T: fmt::Display> From<&'a T> for DiagArgFromDisplay<'a> { + fn from(t: &'a T) -> Self { + DiagArgFromDisplay(t) + } +} + +impl<'a, T: Clone + IntoDiagArg> IntoDiagArg for &'a T { + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { + self.clone().into_diag_arg(path) + } +} + +#[macro_export] +macro_rules! into_diag_arg_using_display { + ($( $ty:ty ),+ $(,)?) => { + $( + impl $crate::IntoDiagArg for $ty { + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> $crate::DiagArgValue { + self.to_string().into_diag_arg(path) + } + } + )+ + } +} + +macro_rules! into_diag_arg_for_number { + ($( $ty:ty ),+ $(,)?) => { + $( + impl $crate::IntoDiagArg for $ty { + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> $crate::DiagArgValue { + // Convert to a string if it won't fit into `Number`. + #[allow(irrefutable_let_patterns)] + if let Ok(n) = TryInto::<i32>::try_into(self) { + $crate::DiagArgValue::Number(n) + } else { + self.to_string().into_diag_arg(path) + } + } + } + )+ + } +} + +into_diag_arg_using_display!( + ast::ParamKindOrd, + std::io::Error, + Box<dyn std::error::Error>, + std::num::NonZero<u32>, + Edition, + rustc_span::Ident, + rustc_span::MacroRulesNormalizedIdent, + ParseIntError, + ExitStatus, +); + +into_diag_arg_for_number!(i8, u8, i16, u16, i32, u32, i64, u64, i128, u128, isize, usize); + +impl IntoDiagArg for bool { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + if self { + DiagArgValue::Str(Cow::Borrowed("true")) + } else { + DiagArgValue::Str(Cow::Borrowed("false")) + } + } +} + +impl IntoDiagArg for char { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::Owned(format!("{self:?}"))) + } +} + +impl IntoDiagArg for Vec<char> { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::StrListSepByAnd( + self.into_iter().map(|c| Cow::Owned(format!("{c:?}"))).collect(), + ) + } +} + +impl IntoDiagArg for rustc_span::Symbol { + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { + self.to_ident_string().into_diag_arg(path) + } +} + +impl<'a> IntoDiagArg for &'a str { + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { + self.to_string().into_diag_arg(path) + } +} + +impl IntoDiagArg for String { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::Owned(self)) + } +} + +impl<'a> IntoDiagArg for Cow<'a, str> { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::Owned(self.into_owned())) + } +} + +impl<'a> IntoDiagArg for &'a Path { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::Owned(self.display().to_string())) + } +} + +impl IntoDiagArg for PathBuf { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::Owned(self.display().to_string())) + } +} + +impl IntoDiagArg for ast::Expr { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::Owned(pprust::expr_to_string(&self))) + } +} + +impl IntoDiagArg for ast::Path { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::Owned(pprust::path_to_string(&self))) + } +} + +impl IntoDiagArg for ast::token::Token { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(pprust::token_to_string(&self)) + } +} + +impl IntoDiagArg for ast::token::TokenKind { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(pprust::token_kind_to_string(&self)) + } +} + +impl IntoDiagArg for std::ffi::CString { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::Owned(self.to_string_lossy().into_owned())) + } +} + +impl IntoDiagArg for rustc_data_structures::small_c_str::SmallCStr { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::Owned(self.to_string_lossy().into_owned())) + } +} + +impl IntoDiagArg for ast::Visibility { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + let s = pprust::vis_to_string(&self); + let s = s.trim_end().to_string(); + DiagArgValue::Str(Cow::Owned(s)) + } +} + +impl IntoDiagArg for Backtrace { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::from(self.to_string())) + } +} + +impl IntoDiagArg for ast::util::parser::ExprPrecedence { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Number(self as i32) + } +} + +impl IntoDiagArg for ast::FloatTy { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::Borrowed(self.name_str())) + } +} diff --git a/compiler/rustc_error_messages/src/lib.rs b/compiler/rustc_error_messages/src/lib.rs index 4b3ecad307f..d8bacbe762b 100644 --- a/compiler/rustc_error_messages/src/lib.rs +++ b/compiler/rustc_error_messages/src/lib.rs @@ -23,6 +23,9 @@ use rustc_span::Span; use tracing::{instrument, trace}; pub use unic_langid::{LanguageIdentifier, langid}; +mod diagnostic_impls; +pub use diagnostic_impls::DiagArgFromDisplay; + pub type FluentBundle = IntoDynSyncSend<fluent_bundle::bundle::FluentBundle<FluentResource, IntlLangMemoizer>>; @@ -589,3 +592,53 @@ pub fn fluent_value_from_str_list_sep_by_and(l: Vec<Cow<'_, str>>) -> FluentValu FluentValue::Custom(Box::new(FluentStrListSepByAnd(l))) } + +/// Simplified version of `FluentArg` that can implement `Encodable` and `Decodable`. Collection of +/// `DiagArg` are converted to `FluentArgs` (consuming the collection) at the start of diagnostic +/// emission. +pub type DiagArg<'iter> = (&'iter DiagArgName, &'iter DiagArgValue); + +/// Name of a diagnostic argument. +pub type DiagArgName = Cow<'static, str>; + +/// Simplified version of `FluentValue` that can implement `Encodable` and `Decodable`. Converted +/// to a `FluentValue` by the emitter to be used in diagnostic translation. +#[derive(Clone, Debug, PartialEq, Eq, Hash, Encodable, Decodable)] +pub enum DiagArgValue { + Str(Cow<'static, str>), + // This gets converted to a `FluentNumber`, which is an `f64`. An `i32` + // safely fits in an `f64`. Any integers bigger than that will be converted + // to strings in `into_diag_arg` and stored using the `Str` variant. + Number(i32), + StrListSepByAnd(Vec<Cow<'static, str>>), +} + +/// Converts a value of a type into a `DiagArg` (typically a field of an `Diag` struct). +/// Implemented as a custom trait rather than `From` so that it is implemented on the type being +/// converted rather than on `DiagArgValue`, which enables types from other `rustc_*` crates to +/// implement this. +pub trait IntoDiagArg { + /// Convert `Self` into a `DiagArgValue` suitable for rendering in a diagnostic. + /// + /// It takes a `path` where "long values" could be written to, if the `DiagArgValue` is too big + /// for displaying on the terminal. This path comes from the `Diag` itself. When rendering + /// values that come from `TyCtxt`, like `Ty<'_>`, they can use `TyCtxt::short_string`. If a + /// value has no shortening logic that could be used, the argument can be safely ignored. + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue; +} + +impl IntoDiagArg for DiagArgValue { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + self + } +} + +impl From<DiagArgValue> for FluentValue<'static> { + fn from(val: DiagArgValue) -> Self { + match val { + DiagArgValue::Str(s) => From::from(s), + DiagArgValue::Number(n) => From::from(n), + DiagArgValue::StrListSepByAnd(l) => fluent_value_from_str_list_sep_by_and(l), + } + } +} diff --git a/compiler/rustc_errors/Cargo.toml b/compiler/rustc_errors/Cargo.toml index 3e8cf6207ae..7912b8e6098 100644 --- a/compiler/rustc_errors/Cargo.toml +++ b/compiler/rustc_errors/Cargo.toml @@ -9,21 +9,17 @@ annotate-snippets = "0.11" derive_setters = "0.1.6" rustc_abi = { path = "../rustc_abi" } rustc_ast = { path = "../rustc_ast" } -rustc_ast_pretty = { path = "../rustc_ast_pretty" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_error_codes = { path = "../rustc_error_codes" } rustc_error_messages = { path = "../rustc_error_messages" } rustc_fluent_macro = { path = "../rustc_fluent_macro" } rustc_hashes = { path = "../rustc_hashes" } -rustc_hir = { path = "../rustc_hir" } rustc_index = { path = "../rustc_index" } rustc_lexer = { path = "../rustc_lexer" } rustc_lint_defs = { path = "../rustc_lint_defs" } rustc_macros = { path = "../rustc_macros" } rustc_serialize = { path = "../rustc_serialize" } rustc_span = { path = "../rustc_span" } -rustc_target = { path = "../rustc_target" } -rustc_type_ir = { path = "../rustc_type_ir" } serde = { version = "1.0.125", features = ["derive"] } serde_json = "1.0.59" termcolor = "1.2.0" diff --git a/compiler/rustc_errors/src/codes.rs b/compiler/rustc_errors/src/codes.rs index 947cf27ca79..787a8af99b1 100644 --- a/compiler/rustc_errors/src/codes.rs +++ b/compiler/rustc_errors/src/codes.rs @@ -20,6 +20,8 @@ impl fmt::Display for ErrCode { } } +rustc_error_messages::into_diag_arg_using_display!(ErrCode); + macro_rules! define_error_code_constants_and_diagnostics_table { ($($name:ident: $num:literal,)*) => ( $( diff --git a/compiler/rustc_errors/src/decorate_diag.rs b/compiler/rustc_errors/src/decorate_diag.rs new file mode 100644 index 00000000000..5aef26ccf97 --- /dev/null +++ b/compiler/rustc_errors/src/decorate_diag.rs @@ -0,0 +1,85 @@ +/// This module provides types and traits for buffering lints until later in compilation. +use rustc_ast::node_id::NodeId; +use rustc_data_structures::fx::FxIndexMap; +use rustc_error_messages::MultiSpan; +use rustc_lint_defs::{BuiltinLintDiag, Lint, LintId}; + +use crate::{DynSend, LintDiagnostic, LintDiagnosticBox}; + +/// We can't implement `LintDiagnostic` for `BuiltinLintDiag`, because decorating some of its +/// variants requires types we don't have yet. So, handle that case separately. +pub enum DecorateDiagCompat { + Dynamic(Box<dyn for<'a> LintDiagnosticBox<'a, ()> + DynSend + 'static>), + Builtin(BuiltinLintDiag), +} + +impl std::fmt::Debug for DecorateDiagCompat { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + f.debug_struct("DecorateDiagCompat").finish() + } +} + +impl !LintDiagnostic<'_, ()> for BuiltinLintDiag {} + +impl<D: for<'a> LintDiagnostic<'a, ()> + DynSend + 'static> From<D> for DecorateDiagCompat { + #[inline] + fn from(d: D) -> Self { + Self::Dynamic(Box::new(d)) + } +} + +impl From<BuiltinLintDiag> for DecorateDiagCompat { + #[inline] + fn from(b: BuiltinLintDiag) -> Self { + Self::Builtin(b) + } +} + +/// Lints that are buffered up early on in the `Session` before the +/// `LintLevels` is calculated. +#[derive(Debug)] +pub struct BufferedEarlyLint { + /// The span of code that we are linting on. + pub span: Option<MultiSpan>, + + /// The `NodeId` of the AST node that generated the lint. + pub node_id: NodeId, + + /// A lint Id that can be passed to + /// `rustc_lint::early::EarlyContextAndPass::check_id`. + pub lint_id: LintId, + + /// Customization of the `Diag<'_>` for the lint. + pub diagnostic: DecorateDiagCompat, +} + +#[derive(Default, Debug)] +pub struct LintBuffer { + pub map: FxIndexMap<NodeId, Vec<BufferedEarlyLint>>, +} + +impl LintBuffer { + pub fn add_early_lint(&mut self, early_lint: BufferedEarlyLint) { + self.map.entry(early_lint.node_id).or_default().push(early_lint); + } + + pub fn take(&mut self, id: NodeId) -> Vec<BufferedEarlyLint> { + // FIXME(#120456) - is `swap_remove` correct? + self.map.swap_remove(&id).unwrap_or_default() + } + + pub fn buffer_lint( + &mut self, + lint: &'static Lint, + node_id: NodeId, + span: impl Into<MultiSpan>, + decorate: impl Into<DecorateDiagCompat>, + ) { + self.add_early_lint(BufferedEarlyLint { + lint_id: LintId::of(lint), + node_id, + span: Some(span.into()), + diagnostic: decorate.into(), + }); + } +} diff --git a/compiler/rustc_errors/src/diagnostic.rs b/compiler/rustc_errors/src/diagnostic.rs index e579370ce4e..96a4ed3218f 100644 --- a/compiler/rustc_errors/src/diagnostic.rs +++ b/compiler/rustc_errors/src/diagnostic.rs @@ -8,7 +8,7 @@ use std::path::PathBuf; use std::thread::panicking; use rustc_data_structures::fx::FxIndexMap; -use rustc_error_messages::{FluentValue, fluent_value_from_str_list_sep_by_and}; +use rustc_error_messages::{DiagArgName, DiagArgValue, IntoDiagArg}; use rustc_lint_defs::{Applicability, LintExpectationId}; use rustc_macros::{Decodable, Encodable}; use rustc_span::source_map::Spanned; @@ -22,26 +22,6 @@ use crate::{ Suggestions, }; -/// Simplified version of `FluentArg` that can implement `Encodable` and `Decodable`. Collection of -/// `DiagArg` are converted to `FluentArgs` (consuming the collection) at the start of diagnostic -/// emission. -pub type DiagArg<'iter> = (&'iter DiagArgName, &'iter DiagArgValue); - -/// Name of a diagnostic argument. -pub type DiagArgName = Cow<'static, str>; - -/// Simplified version of `FluentValue` that can implement `Encodable` and `Decodable`. Converted -/// to a `FluentValue` by the emitter to be used in diagnostic translation. -#[derive(Clone, Debug, PartialEq, Eq, Hash, Encodable, Decodable)] -pub enum DiagArgValue { - Str(Cow<'static, str>), - // This gets converted to a `FluentNumber`, which is an `f64`. An `i32` - // safely fits in an `f64`. Any integers bigger than that will be converted - // to strings in `into_diag_arg` and stored using the `Str` variant. - Number(i32), - StrListSepByAnd(Vec<Cow<'static, str>>), -} - pub type DiagArgMap = FxIndexMap<DiagArgName, DiagArgValue>; /// Trait for types that `Diag::emit` can return as a "guarantee" (or "proof") @@ -143,36 +123,6 @@ where } } -/// Converts a value of a type into a `DiagArg` (typically a field of an `Diag` struct). -/// Implemented as a custom trait rather than `From` so that it is implemented on the type being -/// converted rather than on `DiagArgValue`, which enables types from other `rustc_*` crates to -/// implement this. -pub trait IntoDiagArg { - /// Convert `Self` into a `DiagArgValue` suitable for rendering in a diagnostic. - /// - /// It takes a `path` where "long values" could be written to, if the `DiagArgValue` is too big - /// for displaying on the terminal. This path comes from the `Diag` itself. When rendering - /// values that come from `TyCtxt`, like `Ty<'_>`, they can use `TyCtxt::short_string`. If a - /// value has no shortening logic that could be used, the argument can be safely ignored. - fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue; -} - -impl IntoDiagArg for DiagArgValue { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - self - } -} - -impl From<DiagArgValue> for FluentValue<'static> { - fn from(val: DiagArgValue) -> Self { - match val { - DiagArgValue::Str(s) => From::from(s), - DiagArgValue::Number(n) => From::from(n), - DiagArgValue::StrListSepByAnd(l) => fluent_value_from_str_list_sep_by_and(l), - } - } -} - /// Trait implemented by error types. This should not be implemented manually. Instead, use /// `#[derive(Subdiagnostic)]` -- see [rustc_macros::Subdiagnostic]. #[rustc_diagnostic_item = "Subdiagnostic"] @@ -188,10 +138,20 @@ where /// `#[derive(LintDiagnostic)]` -- see [rustc_macros::LintDiagnostic]. #[rustc_diagnostic_item = "LintDiagnostic"] pub trait LintDiagnostic<'a, G: EmissionGuarantee> { - /// Decorate and emit a lint. + /// Decorate a lint with the information from this type. fn decorate_lint<'b>(self, diag: &'b mut Diag<'a, G>); } +pub trait LintDiagnosticBox<'a, G: EmissionGuarantee> { + fn decorate_lint_box<'b>(self: Box<Self>, diag: &'b mut Diag<'a, G>); +} + +impl<'a, G: EmissionGuarantee, D: LintDiagnostic<'a, G>> LintDiagnosticBox<'a, G> for D { + fn decorate_lint_box<'b>(self: Box<Self>, diag: &'b mut Diag<'a, G>) { + self.decorate_lint(diag); + } +} + #[derive(Clone, Debug, Encodable, Decodable)] pub(crate) struct DiagLocation { file: Cow<'static, str>, @@ -617,6 +577,29 @@ impl<'a, G: EmissionGuarantee> Diag<'a, G> { self.level = Level::DelayedBug; } + /// Make emitting this diagnostic fatal + /// + /// Changes the level of this diagnostic to Fatal, and importantly also changes the emission guarantee. + /// This is sound for errors that would otherwise be printed, but now simply exit the process instead. + /// This function still gives an emission guarantee, the guarantee is now just that it exits fatally. + /// For delayed bugs this is different, since those are buffered. If we upgrade one to fatal, another + /// might now be ignored. + #[rustc_lint_diagnostics] + #[track_caller] + pub fn upgrade_to_fatal(mut self) -> Diag<'a, FatalAbort> { + assert!( + matches!(self.level, Level::Error), + "upgrade_to_fatal: cannot upgrade {:?} to Fatal: not an error", + self.level + ); + self.level = Level::Fatal; + + // Take is okay since we immediately rewrap it in another diagnostic. + // i.e. we do emit it despite defusing the original diagnostic's drop bomb. + let diag = self.diag.take(); + Diag { dcx: self.dcx, diag, _marker: PhantomData } + } + with_fn! { with_span_label, /// Appends a labeled span to the diagnostic. /// diff --git a/compiler/rustc_errors/src/diagnostic_impls.rs b/compiler/rustc_errors/src/diagnostic_impls.rs index 698b6b8d504..435d16a8380 100644 --- a/compiler/rustc_errors/src/diagnostic_impls.rs +++ b/compiler/rustc_errors/src/diagnostic_impls.rs @@ -1,340 +1,22 @@ -use std::backtrace::Backtrace; use std::borrow::Cow; -use std::fmt; -use std::num::ParseIntError; -use std::path::{Path, PathBuf}; -use std::process::ExitStatus; use rustc_abi::TargetDataLayoutErrors; -use rustc_ast::util::parser::ExprPrecedence; -use rustc_ast_pretty::pprust; -use rustc_hir::RustcVersion; -use rustc_hir::attrs::{MirDialect, MirPhase}; +use rustc_error_messages::{DiagArgValue, IntoDiagArg}; use rustc_macros::Subdiagnostic; -use rustc_span::edition::Edition; -use rustc_span::{Ident, MacroRulesNormalizedIdent, Span, Symbol}; -use rustc_target::spec::{PanicStrategy, SplitDebuginfo, StackProtector, TargetTuple}; -use rustc_type_ir::{ClosureKind, FloatTy}; -use {rustc_ast as ast, rustc_hir as hir}; +use rustc_span::{Span, Symbol}; use crate::diagnostic::DiagLocation; use crate::{ - Diag, DiagArgValue, DiagCtxtHandle, Diagnostic, EmissionGuarantee, ErrCode, IntoDiagArg, Level, - Subdiagnostic, fluent_generated as fluent, + Diag, DiagCtxtHandle, Diagnostic, EmissionGuarantee, Level, Subdiagnostic, + fluent_generated as fluent, }; -pub struct DiagArgFromDisplay<'a>(pub &'a dyn fmt::Display); - -impl IntoDiagArg for DiagArgFromDisplay<'_> { - fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { - self.0.to_string().into_diag_arg(path) - } -} - -impl<'a> From<&'a dyn fmt::Display> for DiagArgFromDisplay<'a> { - fn from(t: &'a dyn fmt::Display) -> Self { - DiagArgFromDisplay(t) - } -} - -impl<'a, T: fmt::Display> From<&'a T> for DiagArgFromDisplay<'a> { - fn from(t: &'a T) -> Self { - DiagArgFromDisplay(t) - } -} - -impl<'a, T: Clone + IntoDiagArg> IntoDiagArg for &'a T { - fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { - self.clone().into_diag_arg(path) - } -} - -#[macro_export] -macro_rules! into_diag_arg_using_display { - ($( $ty:ty ),+ $(,)?) => { - $( - impl IntoDiagArg for $ty { - fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { - self.to_string().into_diag_arg(path) - } - } - )+ - } -} - -macro_rules! into_diag_arg_for_number { - ($( $ty:ty ),+ $(,)?) => { - $( - impl IntoDiagArg for $ty { - fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { - // Convert to a string if it won't fit into `Number`. - #[allow(irrefutable_let_patterns)] - if let Ok(n) = TryInto::<i32>::try_into(self) { - DiagArgValue::Number(n) - } else { - self.to_string().into_diag_arg(path) - } - } - } - )+ - } -} - -into_diag_arg_using_display!( - ast::ParamKindOrd, - std::io::Error, - Box<dyn std::error::Error>, - std::num::NonZero<u32>, - hir::Target, - Edition, - Ident, - MacroRulesNormalizedIdent, - ParseIntError, - StackProtector, - &TargetTuple, - SplitDebuginfo, - ExitStatus, - ErrCode, - rustc_abi::ExternAbi, -); - -impl IntoDiagArg for RustcVersion { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::Owned(self.to_string())) - } -} - -impl<I: rustc_type_ir::Interner> IntoDiagArg for rustc_type_ir::TraitRef<I> { - fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { - self.to_string().into_diag_arg(path) - } -} - -impl<I: rustc_type_ir::Interner> IntoDiagArg for rustc_type_ir::ExistentialTraitRef<I> { - fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { - self.to_string().into_diag_arg(path) - } -} - -impl<I: rustc_type_ir::Interner> IntoDiagArg for rustc_type_ir::UnevaluatedConst<I> { - fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { - format!("{self:?}").into_diag_arg(path) - } -} - -impl<I: rustc_type_ir::Interner> IntoDiagArg for rustc_type_ir::FnSig<I> { - fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { - format!("{self:?}").into_diag_arg(path) - } -} - -impl<I: rustc_type_ir::Interner, T> IntoDiagArg for rustc_type_ir::Binder<I, T> -where - T: IntoDiagArg, -{ - fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { - self.skip_binder().into_diag_arg(path) - } -} - -into_diag_arg_for_number!(i8, u8, i16, u16, i32, u32, i64, u64, i128, u128, isize, usize); - -impl IntoDiagArg for bool { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - if self { - DiagArgValue::Str(Cow::Borrowed("true")) - } else { - DiagArgValue::Str(Cow::Borrowed("false")) - } - } -} - -impl IntoDiagArg for char { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::Owned(format!("{self:?}"))) - } -} - -impl IntoDiagArg for Vec<char> { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::StrListSepByAnd( - self.into_iter().map(|c| Cow::Owned(format!("{c:?}"))).collect(), - ) - } -} - -impl IntoDiagArg for Symbol { - fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { - self.to_ident_string().into_diag_arg(path) - } -} - -impl<'a> IntoDiagArg for &'a str { - fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { - self.to_string().into_diag_arg(path) - } -} - -impl IntoDiagArg for String { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::Owned(self)) - } -} - -impl<'a> IntoDiagArg for Cow<'a, str> { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::Owned(self.into_owned())) - } -} - -impl<'a> IntoDiagArg for &'a Path { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::Owned(self.display().to_string())) - } -} - -impl IntoDiagArg for PathBuf { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::Owned(self.display().to_string())) - } -} - -impl IntoDiagArg for PanicStrategy { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::Owned(self.desc().to_string())) - } -} - -impl IntoDiagArg for hir::ConstContext { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::Borrowed(match self { - hir::ConstContext::ConstFn => "const_fn", - hir::ConstContext::Static(_) => "static", - hir::ConstContext::Const { .. } => "const", - })) - } -} - -impl IntoDiagArg for ast::Expr { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::Owned(pprust::expr_to_string(&self))) - } -} - -impl IntoDiagArg for ast::Path { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::Owned(pprust::path_to_string(&self))) - } -} - -impl IntoDiagArg for ast::token::Token { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(pprust::token_to_string(&self)) - } -} - -impl IntoDiagArg for ast::token::TokenKind { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(pprust::token_kind_to_string(&self)) - } -} - -impl IntoDiagArg for FloatTy { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::Borrowed(self.name_str())) - } -} - -impl IntoDiagArg for std::ffi::CString { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::Owned(self.to_string_lossy().into_owned())) - } -} - -impl IntoDiagArg for rustc_data_structures::small_c_str::SmallCStr { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::Owned(self.to_string_lossy().into_owned())) - } -} - -impl IntoDiagArg for ast::Visibility { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - let s = pprust::vis_to_string(&self); - let s = s.trim_end().to_string(); - DiagArgValue::Str(Cow::Owned(s)) - } -} - -impl IntoDiagArg for rustc_lint_defs::Level { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::Borrowed(self.to_cmd_flag())) - } -} - -impl<Id> IntoDiagArg for hir::def::Res<Id> { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::Borrowed(self.descr())) - } -} - impl IntoDiagArg for DiagLocation { fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { DiagArgValue::Str(Cow::from(self.to_string())) } } -impl IntoDiagArg for Backtrace { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::from(self.to_string())) - } -} - -impl IntoDiagArg for Level { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::from(self.to_string())) - } -} - -impl IntoDiagArg for ClosureKind { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(self.as_str().into()) - } -} - -impl IntoDiagArg for hir::def::Namespace { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Str(Cow::Borrowed(self.descr())) - } -} - -impl IntoDiagArg for ExprPrecedence { - fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { - DiagArgValue::Number(self as i32) - } -} - -impl IntoDiagArg for MirDialect { - fn into_diag_arg(self, _path: &mut Option<PathBuf>) -> DiagArgValue { - let arg = match self { - MirDialect::Analysis => "analysis", - MirDialect::Built => "built", - MirDialect::Runtime => "runtime", - }; - DiagArgValue::Str(Cow::Borrowed(arg)) - } -} - -impl IntoDiagArg for MirPhase { - fn into_diag_arg(self, _path: &mut Option<PathBuf>) -> DiagArgValue { - let arg = match self { - MirPhase::Initial => "initial", - MirPhase::PostCleanup => "post-cleanup", - MirPhase::Optimized => "optimized", - }; - DiagArgValue::Str(Cow::Borrowed(arg)) - } -} - #[derive(Clone)] pub struct DiagSymbolList<S = Symbol>(Vec<S>); diff --git a/compiler/rustc_errors/src/emitter.rs b/compiler/rustc_errors/src/emitter.rs index 97c47fa9b9a..749bba5de12 100644 --- a/compiler/rustc_errors/src/emitter.rs +++ b/compiler/rustc_errors/src/emitter.rs @@ -17,7 +17,7 @@ use std::path::Path; use std::sync::Arc; use derive_setters::Setters; -use rustc_data_structures::fx::{FxHashMap, FxIndexMap, FxIndexSet}; +use rustc_data_structures::fx::{FxIndexMap, FxIndexSet}; use rustc_data_structures::sync::{DynSend, IntoDynSyncSend}; use rustc_error_messages::{FluentArgs, SpanLabel}; use rustc_lexer; @@ -1853,7 +1853,7 @@ impl HumanEmitter { && line_idx + 1 == annotated_file.lines.len(), ); - let mut to_add = FxHashMap::default(); + let mut to_add = FxIndexMap::default(); for (depth, style) in depths { // FIXME(#120456) - is `swap_remove` correct? diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs index 2534cddf105..71fc54f0d33 100644 --- a/compiler/rustc_errors/src/lib.rs +++ b/compiler/rustc_errors/src/lib.rs @@ -40,13 +40,13 @@ use std::{fmt, panic}; use Level::*; pub use codes::*; +pub use decorate_diag::{BufferedEarlyLint, DecorateDiagCompat, LintBuffer}; pub use diagnostic::{ - BugAbort, Diag, DiagArg, DiagArgMap, DiagArgName, DiagArgValue, DiagInner, DiagStyledString, - Diagnostic, EmissionGuarantee, FatalAbort, IntoDiagArg, LintDiagnostic, StringPart, Subdiag, - Subdiagnostic, + BugAbort, Diag, DiagArgMap, DiagInner, DiagStyledString, Diagnostic, EmissionGuarantee, + FatalAbort, LintDiagnostic, LintDiagnosticBox, StringPart, Subdiag, Subdiagnostic, }; pub use diagnostic_impls::{ - DiagArgFromDisplay, DiagSymbolList, ElidedLifetimeInPathSubdiag, ExpectedLifetimeParameter, + DiagSymbolList, ElidedLifetimeInPathSubdiag, ExpectedLifetimeParameter, IndicateAnonymousLifetime, SingleLabelManySpans, }; pub use emitter::ColorConfig; @@ -56,11 +56,11 @@ use rustc_data_structures::fx::{FxHashSet, FxIndexMap, FxIndexSet}; use rustc_data_structures::stable_hasher::StableHasher; use rustc_data_structures::sync::{DynSend, Lock}; pub use rustc_error_messages::{ - DiagMessage, FluentBundle, LanguageIdentifier, LazyFallbackBundle, MultiSpan, SpanLabel, - SubdiagMessage, fallback_fluent_bundle, fluent_bundle, + DiagArg, DiagArgFromDisplay, DiagArgName, DiagArgValue, DiagMessage, FluentBundle, IntoDiagArg, + LanguageIdentifier, LazyFallbackBundle, MultiSpan, SpanLabel, SubdiagMessage, + fallback_fluent_bundle, fluent_bundle, into_diag_arg_using_display, }; use rustc_hashes::Hash128; -use rustc_hir::HirId; pub use rustc_lint_defs::{Applicability, listify, pluralize}; use rustc_lint_defs::{Lint, LintExpectationId}; use rustc_macros::{Decodable, Encodable}; @@ -80,6 +80,7 @@ use crate::timings::TimingRecord; pub mod annotate_snippet_emitter_writer; pub mod codes; +mod decorate_diag; mod diagnostic; mod diagnostic_impls; pub mod emitter; @@ -108,13 +109,14 @@ rustc_data_structures::static_assert_size!(PResult<'_, bool>, 24); /// Used to avoid depending on `rustc_middle` in `rustc_attr_parsing`. /// Always the `TyCtxt`. pub trait LintEmitter: Copy { + type Id: Copy; #[track_caller] fn emit_node_span_lint( self, lint: &'static Lint, - hir_id: HirId, + hir_id: Self::Id, span: impl Into<MultiSpan>, - decorator: impl for<'a> LintDiagnostic<'a, ()>, + decorator: impl for<'a> LintDiagnostic<'a, ()> + DynSend + 'static, ); } @@ -1999,6 +2001,12 @@ impl Level { } } +impl IntoDiagArg for Level { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::from(self.to_string())) + } +} + // FIXME(eddyb) this doesn't belong here AFAICT, should be moved to callsite. pub fn elided_lifetime_in_path_suggestion( source_map: &SourceMap, diff --git a/compiler/rustc_expand/src/base.rs b/compiler/rustc_expand/src/base.rs index f2c15071532..8ff21509f4a 100644 --- a/compiler/rustc_expand/src/base.rs +++ b/compiler/rustc_expand/src/base.rs @@ -13,13 +13,13 @@ use rustc_ast::visit::{AssocCtxt, Visitor}; use rustc_ast::{self as ast, AttrVec, Attribute, HasAttrs, Item, NodeId, PatKind}; use rustc_data_structures::fx::{FxHashMap, FxIndexMap}; use rustc_data_structures::sync; -use rustc_errors::{DiagCtxtHandle, ErrorGuaranteed, PResult}; +use rustc_errors::{BufferedEarlyLint, DiagCtxtHandle, ErrorGuaranteed, PResult}; use rustc_feature::Features; use rustc_hir as hir; use rustc_hir::attrs::{AttributeKind, CfgEntry, Deprecation}; use rustc_hir::def::MacroKinds; use rustc_hir::{Stability, find_attr}; -use rustc_lint_defs::{BufferedEarlyLint, RegisteredTools}; +use rustc_lint_defs::RegisteredTools; use rustc_parse::MACRO_ARGUMENTS; use rustc_parse::parser::{ForceCollect, Parser}; use rustc_session::config::CollapseMacroDebuginfo; diff --git a/compiler/rustc_expand/src/config.rs b/compiler/rustc_expand/src/config.rs index 83a8d601afe..15419ab7423 100644 --- a/compiler/rustc_expand/src/config.rs +++ b/compiler/rustc_expand/src/config.rs @@ -11,8 +11,10 @@ use rustc_ast::{ NodeId, NormalAttr, }; use rustc_attr_parsing as attr; +use rustc_attr_parsing::validate_attr::deny_builtin_meta_unsafety; use rustc_attr_parsing::{ AttributeParser, CFG_TEMPLATE, EvalConfigResult, ShouldEmit, eval_config_entry, parse_cfg_attr, + validate_attr, }; use rustc_data_structures::flat_map_in_place::FlatMapInPlace; use rustc_feature::{ @@ -20,8 +22,6 @@ use rustc_feature::{ REMOVED_LANG_FEATURES, UNSTABLE_LANG_FEATURES, }; use rustc_lint_defs::BuiltinLintDiag; -use rustc_parse::validate_attr; -use rustc_parse::validate_attr::deny_builtin_meta_unsafety; use rustc_session::Session; use rustc_session::parse::feature_err; use rustc_span::{STDLIB_STABLE_CRATES, Span, Symbol, sym}; @@ -415,16 +415,6 @@ impl<'a> StripUnconfigured<'a> { node: NodeId, emit_errors: ShouldEmit, ) -> EvalConfigResult { - // We need to run this to do basic validation of the attribute, such as that lits are valid, etc - // FIXME(jdonszelmann) this should not be necessary in the future - match validate_attr::parse_meta(&self.sess.psess, attr) { - Ok(_) => {} - Err(err) => { - err.emit(); - return EvalConfigResult::True; - } - } - // Unsafety check needs to be done explicitly here because this attribute will be removed before the normal check deny_builtin_meta_unsafety( self.sess.dcx(), diff --git a/compiler/rustc_expand/src/expand.rs b/compiler/rustc_expand/src/expand.rs index 1f7f4c7d856..dbb4a9de9e0 100644 --- a/compiler/rustc_expand/src/expand.rs +++ b/compiler/rustc_expand/src/expand.rs @@ -1,7 +1,7 @@ use std::path::PathBuf; use std::rc::Rc; use std::sync::Arc; -use std::{iter, mem}; +use std::{iter, mem, slice}; use rustc_ast::mut_visit::*; use rustc_ast::tokenstream::TokenStream; @@ -12,16 +12,17 @@ use rustc_ast::{ MetaItemKind, ModKind, NodeId, PatKind, StmtKind, TyKind, token, }; use rustc_ast_pretty::pprust; -use rustc_attr_parsing::{EvalConfigResult, ShouldEmit}; +use rustc_attr_parsing::{AttributeParser, Early, EvalConfigResult, ShouldEmit, validate_attr}; use rustc_data_structures::flat_map_in_place::FlatMapInPlace; +use rustc_data_structures::stack::ensure_sufficient_stack; use rustc_errors::PResult; use rustc_feature::Features; +use rustc_hir::Target; use rustc_hir::def::MacroKinds; use rustc_parse::parser::{ AttemptLocalParseRecovery, CommaRecoveryMode, ForceCollect, Parser, RecoverColon, RecoverComma, token_descr, }; -use rustc_parse::validate_attr; use rustc_session::lint::BuiltinLintDiag; use rustc_session::lint::builtin::{UNUSED_ATTRIBUTES, UNUSED_DOC_COMMENTS}; use rustc_session::parse::feature_err; @@ -801,7 +802,8 @@ impl<'a, 'b> MacroExpander<'a, 'b> { ItemKind::Mod( _, _, - ModKind::Unloaded | ModKind::Loaded(_, Inline::No, _, _), + ModKind::Unloaded + | ModKind::Loaded(_, Inline::No { .. }, _), ) ) => { @@ -1035,7 +1037,7 @@ impl<'a, 'b> MacroExpander<'a, 'b> { fn visit_item(&mut self, item: &'ast ast::Item) { match &item.kind { ItemKind::Mod(_, _, mod_kind) - if !matches!(mod_kind, ModKind::Loaded(_, Inline::Yes, _, _)) => + if !matches!(mod_kind, ModKind::Loaded(_, Inline::Yes, _)) => { feature_err( self.sess, @@ -1346,7 +1348,7 @@ impl InvocationCollectorNode for Box<ast::Item> { let ItemKind::Mod(_, ident, ref mut mod_kind) = node.kind else { unreachable!() }; let ecx = &mut collector.cx; let (file_path, dir_path, dir_ownership) = match mod_kind { - ModKind::Loaded(_, inline, _, _) => { + ModKind::Loaded(_, inline, _) => { // Inline `mod foo { ... }`, but we still need to push directories. let (dir_path, dir_ownership) = mod_dir_path( ecx.sess, @@ -1360,7 +1362,7 @@ impl InvocationCollectorNode for Box<ast::Item> { // This lets `parse_external_mod` catch cycles if it's self-referential. let file_path = match inline { Inline::Yes => None, - Inline::No => mod_file_path_from_attr(ecx.sess, &attrs, &dir_path), + Inline::No { .. } => mod_file_path_from_attr(ecx.sess, &attrs, &dir_path), }; node.attrs = attrs; (file_path, dir_path, dir_ownership) @@ -1396,7 +1398,7 @@ impl InvocationCollectorNode for Box<ast::Item> { ); } - *mod_kind = ModKind::Loaded(items, Inline::No, spans, had_parse_error); + *mod_kind = ModKind::Loaded(items, Inline::No { had_parse_error }, spans); node.attrs = attrs; if node.attrs.len() > old_attrs_len { // If we loaded an out-of-line module and added some inner attributes, @@ -2157,6 +2159,16 @@ impl<'a, 'b> InvocationCollector<'a, 'b> { attr, self.cx.current_expansion.lint_node_id, ); + AttributeParser::parse_limited_all( + self.cx.sess, + slice::from_ref(attr), + None, + Target::MacroCall, + call.span(), + self.cx.current_expansion.lint_node_id, + Some(self.cx.ecfg.features), + ShouldEmit::ErrorsAndLints, + ); let current_span = if let Some(sp) = span { sp.to(attr.span) } else { attr.span }; span = Some(current_span); @@ -2172,7 +2184,9 @@ impl<'a, 'b> InvocationCollector<'a, 'b> { self.cx.current_expansion.lint_node_id, BuiltinLintDiag::UnusedDocComment(attr.span), ); - } else if rustc_attr_parsing::is_builtin_attr(attr) { + } else if rustc_attr_parsing::is_builtin_attr(attr) + && !AttributeParser::<Early>::is_parsed_attribute(&attr.path()) + { let attr_name = attr.ident().unwrap().name; // `#[cfg]` and `#[cfg_attr]` are special - they are // eagerly evaluated. @@ -2468,7 +2482,7 @@ impl<'a, 'b> MutVisitor for InvocationCollector<'a, 'b> { if let Some(attr) = node.attrs.first() { self.cfg().maybe_emit_expr_attr_err(attr); } - self.visit_node(node) + ensure_sufficient_stack(|| self.visit_node(node)) } fn visit_method_receiver_expr(&mut self, node: &mut ast::Expr) { diff --git a/compiler/rustc_expand/src/mbe/macro_rules.rs b/compiler/rustc_expand/src/mbe/macro_rules.rs index bced02ae4da..8b43f852b26 100644 --- a/compiler/rustc_expand/src/mbe/macro_rules.rs +++ b/compiler/rustc_expand/src/mbe/macro_rules.rs @@ -596,6 +596,7 @@ pub(super) fn try_match_macro_attr<'matcher, T: Tracker<'matcher>>( match result { Success(body_named_matches) => { psess.gated_spans.merge(gated_spans_snapshot); + #[allow(rustc::potential_query_instability)] named_matches.extend(body_named_matches); return Ok((i, rule, named_matches)); } diff --git a/compiler/rustc_expand/src/module.rs b/compiler/rustc_expand/src/module.rs index 662c67f2d3f..19f3cdbc549 100644 --- a/compiler/rustc_expand/src/module.rs +++ b/compiler/rustc_expand/src/module.rs @@ -2,8 +2,9 @@ use std::iter::once; use std::path::{self, Path, PathBuf}; use rustc_ast::{AttrVec, Attribute, Inline, Item, ModSpans}; +use rustc_attr_parsing::validate_attr; use rustc_errors::{Diag, ErrorGuaranteed}; -use rustc_parse::{exp, new_parser_from_file, unwrap_or_emit_fatal, validate_attr}; +use rustc_parse::{exp, new_parser_from_file, unwrap_or_emit_fatal}; use rustc_session::Session; use rustc_session::parse::ParseSess; use rustc_span::{Ident, Span, sym}; @@ -120,7 +121,7 @@ pub(crate) fn mod_dir_path( (dir_path, dir_ownership) } - Inline::No => { + Inline::No { .. } => { // FIXME: This is a subset of `parse_external_mod` without actual parsing, // check whether the logic for unloaded, loaded and inline modules can be unified. let file_path = mod_file_path(sess, ident, attrs, &module.dir_path, dir_ownership) diff --git a/compiler/rustc_expand/src/proc_macro_server.rs b/compiler/rustc_expand/src/proc_macro_server.rs index fd71f2ce948..5b1d3d6d35b 100644 --- a/compiler/rustc_expand/src/proc_macro_server.rs +++ b/compiler/rustc_expand/src/proc_macro_server.rs @@ -250,12 +250,14 @@ impl FromInternal<(TokenStream, &mut Rustc<'_, '_>)> for Vec<TokenTree<TokenStre Question => op("?"), SingleQuote => op("'"), - Ident(sym, is_raw) => { - trees.push(TokenTree::Ident(Ident { sym, is_raw: is_raw.into(), span })) - } + Ident(sym, is_raw) => trees.push(TokenTree::Ident(Ident { + sym, + is_raw: matches!(is_raw, IdentIsRaw::Yes), + span, + })), NtIdent(ident, is_raw) => trees.push(TokenTree::Ident(Ident { sym: ident.name, - is_raw: is_raw.into(), + is_raw: matches!(is_raw, IdentIsRaw::Yes), span: ident.span, })), @@ -263,7 +265,11 @@ impl FromInternal<(TokenStream, &mut Rustc<'_, '_>)> for Vec<TokenTree<TokenStre let ident = rustc_span::Ident::new(name, span).without_first_quote(); trees.extend([ TokenTree::Punct(Punct { ch: b'\'', joint: true, span }), - TokenTree::Ident(Ident { sym: ident.name, is_raw: is_raw.into(), span }), + TokenTree::Ident(Ident { + sym: ident.name, + is_raw: matches!(is_raw, IdentIsRaw::Yes), + span, + }), ]); } NtLifetime(ident, is_raw) => { diff --git a/compiler/rustc_feature/src/builtin_attrs.rs b/compiler/rustc_feature/src/builtin_attrs.rs index 3b11a2bc7df..e81003b1897 100644 --- a/compiler/rustc_feature/src/builtin_attrs.rs +++ b/compiler/rustc_feature/src/builtin_attrs.rs @@ -745,6 +745,10 @@ pub static BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[ ErrorPreceding, EncodeCrossCrate::No ), gated!( + unsafe force_target_feature, Normal, template!(List: &[r#"enable = "name""#]), + DuplicatesOk, EncodeCrossCrate::No, effective_target_features, experimental!(force_target_feature) + ), + gated!( sanitize, Normal, template!(List: &[r#"address = "on|off""#, r#"kernel_address = "on|off""#, r#"cfi = "on|off""#, r#"hwaddress = "on|off""#, r#"kcfi = "on|off""#, r#"memory = "on|off""#, r#"memtag = "on|off""#, r#"shadow_call_stack = "on|off""#, r#"thread = "on|off""#]), ErrorPreceding, EncodeCrossCrate::No, sanitize, experimental!(sanitize), ), @@ -996,6 +1000,10 @@ pub static BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[ rustc_allocator_zeroed, Normal, template!(Word), WarnFollowing, EncodeCrossCrate::No, ), + rustc_attr!( + rustc_allocator_zeroed_variant, Normal, template!(NameValueStr: "function"), ErrorPreceding, + EncodeCrossCrate::Yes, + ), gated!( default_lib_allocator, Normal, template!(Word), WarnFollowing, EncodeCrossCrate::No, allocator_internals, experimental!(default_lib_allocator), diff --git a/compiler/rustc_feature/src/unstable.rs b/compiler/rustc_feature/src/unstable.rs index 746871982ce..92b435b4b01 100644 --- a/compiler/rustc_feature/src/unstable.rs +++ b/compiler/rustc_feature/src/unstable.rs @@ -480,6 +480,8 @@ declare_features! ( (unstable, doc_cfg_hide, "1.57.0", Some(43781)), /// Allows `#[doc(masked)]`. (unstable, doc_masked, "1.21.0", Some(44027)), + /// Allows features to allow target_feature to better interact with traits. + (incomplete, effective_target_features, "CURRENT_RUSTC_VERSION", Some(143352)), /// Allows the .use postfix syntax `x.use` and use closures `use |x| { ... }` (incomplete, ergonomic_clones, "1.87.0", Some(132290)), /// Allows exhaustive pattern matching on types that contain uninhabited types. @@ -614,6 +616,7 @@ declare_features! ( (unstable, proc_macro_hygiene, "1.30.0", Some(54727)), /// Allows the use of raw-dylibs on ELF platforms (incomplete, raw_dylib_elf, "1.87.0", Some(135694)), + (unstable, reborrow, "CURRENT_RUSTC_VERSION", Some(145612)), /// Makes `&` and `&mut` patterns eat only one layer of references in Rust 2024. (incomplete, ref_pat_eat_one_layer_2024, "1.79.0", Some(123076)), /// Makes `&` and `&mut` patterns eat only one layer of references in Rust 2024—structural variant diff --git a/compiler/rustc_hir/Cargo.toml b/compiler/rustc_hir/Cargo.toml index 71496b7ec32..1008a3e787d 100644 --- a/compiler/rustc_hir/Cargo.toml +++ b/compiler/rustc_hir/Cargo.toml @@ -12,7 +12,9 @@ rustc_arena = { path = "../rustc_arena" } rustc_ast = { path = "../rustc_ast" } rustc_ast_pretty = { path = "../rustc_ast_pretty" } rustc_data_structures = { path = "../rustc_data_structures" } +rustc_error_messages = { path = "../rustc_error_messages" } rustc_hashes = { path = "../rustc_hashes" } +rustc_hir_id = { path = "../rustc_hir_id" } rustc_index = { path = "../rustc_index" } rustc_macros = { path = "../rustc_macros" } rustc_serialize = { path = "../rustc_serialize" } diff --git a/compiler/rustc_hir/src/attrs/data_structures.rs b/compiler/rustc_hir/src/attrs/data_structures.rs index 31715955ed3..09da5772d23 100644 --- a/compiler/rustc_hir/src/attrs/data_structures.rs +++ b/compiler/rustc_hir/src/attrs/data_structures.rs @@ -1,11 +1,16 @@ +use std::borrow::Cow; +use std::path::PathBuf; + pub use ReprAttr::*; use rustc_abi::Align; use rustc_ast::token::CommentKind; use rustc_ast::{AttrStyle, ast}; +use rustc_error_messages::{DiagArgValue, IntoDiagArg}; use rustc_macros::{Decodable, Encodable, HashStable_Generic, PrintAttribute}; use rustc_span::def_id::DefId; use rustc_span::hygiene::Transparency; use rustc_span::{Ident, Span, Symbol}; +pub use rustc_target::spec::SanitizerSet; use thin_vec::ThinVec; use crate::attrs::pretty_printing::PrintAttribute; @@ -213,6 +218,17 @@ pub enum MirDialect { Runtime, } +impl IntoDiagArg for MirDialect { + fn into_diag_arg(self, _path: &mut Option<PathBuf>) -> DiagArgValue { + let arg = match self { + MirDialect::Analysis => "analysis", + MirDialect::Built => "built", + MirDialect::Runtime => "runtime", + }; + DiagArgValue::Str(Cow::Borrowed(arg)) + } +} + #[derive(Clone, Copy, Decodable, Debug, Encodable, PartialEq)] #[derive(HashStable_Generic, PrintAttribute)] pub enum MirPhase { @@ -221,6 +237,17 @@ pub enum MirPhase { Optimized, } +impl IntoDiagArg for MirPhase { + fn into_diag_arg(self, _path: &mut Option<PathBuf>) -> DiagArgValue { + let arg = match self { + MirPhase::Initial => "initial", + MirPhase::PostCleanup => "post-cleanup", + MirPhase::Optimized => "optimized", + }; + DiagArgValue::Str(Cow::Borrowed(arg)) + } +} + /// Represents parsed *built-in* inert attributes. /// /// ## Overview @@ -340,6 +367,9 @@ pub enum AttributeKind { /// Represents `#[coverage(..)]`. Coverage(Span, CoverageAttrKind), + /// Represents `#[crate_name = ...]` + CrateName { name: Symbol, name_span: Span, attr_span: Span, style: AttrStyle }, + /// Represents `#[custom_mir]`. CustomMir(Option<(MirDialect, Span)>, Option<(MirPhase, Span)>, Span), @@ -479,6 +509,12 @@ pub enum AttributeKind { /// Represents `#[rustc_object_lifetime_default]`. RustcObjectLifetimeDefault, + /// Represents `#[sanitize]` + /// + /// the on set and off set are distjoint since there's a third option: unset. + /// a node may not set the sanitizer setting in which case it inherits from parents. + Sanitize { on_set: SanitizerSet, off_set: SanitizerSet, span: Span }, + /// Represents `#[should_panic]` ShouldPanic { reason: Option<Symbol>, span: Span }, @@ -498,8 +534,9 @@ pub enum AttributeKind { /// Represents `#[rustc_std_internal_symbol]`. StdInternalSymbol(Span), - /// Represents `#[target_feature(enable = "...")]` - TargetFeature(ThinVec<(Symbol, Span)>, Span), + /// Represents `#[target_feature(enable = "...")]` and + /// `#[unsafe(force_target_feature(enable = "...")]`. + TargetFeature { features: ThinVec<(Symbol, Span)>, attr_span: Span, was_forced: bool }, /// Represents `#[track_caller]` TrackCaller(Span), diff --git a/compiler/rustc_hir/src/attrs/encode_cross_crate.rs b/compiler/rustc_hir/src/attrs/encode_cross_crate.rs index defabdccc02..e5329c104bb 100644 --- a/compiler/rustc_hir/src/attrs/encode_cross_crate.rs +++ b/compiler/rustc_hir/src/attrs/encode_cross_crate.rs @@ -7,6 +7,11 @@ pub enum EncodeCrossCrate { } impl AttributeKind { + /// Whether this attribute should be encoded in metadata files. + /// + /// If this is "Yes", then another crate can do `tcx.get_all_attrs(did)` for a did in this crate, and get the attribute. + /// When this is No, the attribute is filtered out while encoding and other crate won't be able to observe it. + /// This can be unexpectedly good for performance, so unless necessary for cross-crate compilation, prefer No. pub fn encode_cross_crate(&self) -> EncodeCrossCrate { use AttributeKind::*; use EncodeCrossCrate::*; @@ -31,6 +36,7 @@ impl AttributeKind { ConstTrait(..) => No, Coroutine(..) => No, Coverage(..) => No, + CrateName { .. } => No, CustomMir(_, _, _) => Yes, DenyExplicitImpl(..) => No, Deprecation { .. } => Yes, @@ -73,12 +79,13 @@ impl AttributeKind { RustcLayoutScalarValidRangeEnd(..) => Yes, RustcLayoutScalarValidRangeStart(..) => Yes, RustcObjectLifetimeDefault => No, + Sanitize { .. } => No, ShouldPanic { .. } => No, SkipDuringMethodDispatch { .. } => No, SpecializationTrait(..) => No, Stability { .. } => Yes, StdInternalSymbol(..) => No, - TargetFeature(..) => No, + TargetFeature { .. } => No, TrackCaller(..) => Yes, TypeConst(..) => Yes, UnsafeSpecializationMarker(..) => No, diff --git a/compiler/rustc_hir/src/attrs/pretty_printing.rs b/compiler/rustc_hir/src/attrs/pretty_printing.rs index e44b29141da..e65de25b451 100644 --- a/compiler/rustc_hir/src/attrs/pretty_printing.rs +++ b/compiler/rustc_hir/src/attrs/pretty_printing.rs @@ -6,6 +6,7 @@ use rustc_ast::{AttrStyle, IntTy, UintTy}; use rustc_ast_pretty::pp::Printer; use rustc_span::hygiene::Transparency; use rustc_span::{ErrorGuaranteed, Ident, Span, Symbol}; +use rustc_target::spec::SanitizerSet; use thin_vec::ThinVec; /// This trait is used to print attributes in `rustc_hir_pretty`. @@ -146,4 +147,14 @@ macro_rules! print_tup { print_tup!(A B C D E F G H); print_skip!(Span, (), ErrorGuaranteed); print_disp!(u16, bool, NonZero<u32>); -print_debug!(Symbol, Ident, UintTy, IntTy, Align, AttrStyle, CommentKind, Transparency); +print_debug!( + Symbol, + Ident, + UintTy, + IntTy, + Align, + AttrStyle, + CommentKind, + Transparency, + SanitizerSet, +); diff --git a/compiler/rustc_hir/src/def.rs b/compiler/rustc_hir/src/def.rs index 79319e24266..8af4740f376 100644 --- a/compiler/rustc_hir/src/def.rs +++ b/compiler/rustc_hir/src/def.rs @@ -1,10 +1,12 @@ use std::array::IntoIter; +use std::borrow::Cow; use std::fmt::Debug; use rustc_ast as ast; use rustc_ast::NodeId; use rustc_data_structures::stable_hasher::ToStableHashKey; use rustc_data_structures::unord::UnordMap; +use rustc_error_messages::{DiagArgValue, IntoDiagArg}; use rustc_macros::{Decodable, Encodable, HashStable_Generic}; use rustc_span::Symbol; use rustc_span::def_id::{DefId, LocalDefId}; @@ -586,6 +588,12 @@ pub enum Res<Id = hir::HirId> { Err, } +impl<Id> IntoDiagArg for Res<Id> { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::Borrowed(self.descr())) + } +} + /// The result of resolving a path before lowering to HIR, /// with "module" segments resolved and associated item /// segments deferred to type checking. @@ -673,6 +681,12 @@ impl Namespace { } } +impl IntoDiagArg for Namespace { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::Borrowed(self.descr())) + } +} + impl<CTX: crate::HashStableContext> ToStableHashKey<CTX> for Namespace { type KeyType = Namespace; diff --git a/compiler/rustc_hir/src/hir.rs b/compiler/rustc_hir/src/hir.rs index 2c8986b7c7d..e397c286de2 100644 --- a/compiler/rustc_hir/src/hir.rs +++ b/compiler/rustc_hir/src/hir.rs @@ -1,4 +1,5 @@ // ignore-tidy-filelength +use std::borrow::Cow; use std::fmt; use rustc_abi::ExternAbi; @@ -17,6 +18,7 @@ pub use rustc_ast::{ use rustc_data_structures::fingerprint::Fingerprint; use rustc_data_structures::sorted_map::SortedMap; use rustc_data_structures::tagged_ptr::TaggedRef; +use rustc_error_messages::{DiagArgValue, IntoDiagArg}; use rustc_index::IndexVec; use rustc_macros::{Decodable, Encodable, HashStable_Generic}; use rustc_span::def_id::LocalDefId; @@ -1159,6 +1161,12 @@ pub struct AttrPath { pub span: Span, } +impl IntoDiagArg for AttrPath { + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { + self.to_string().into_diag_arg(path) + } +} + impl AttrPath { pub fn from_ast(path: &ast::Path) -> Self { AttrPath { @@ -2259,8 +2267,15 @@ impl fmt::Display for ConstContext { } } -// NOTE: `IntoDiagArg` impl for `ConstContext` lives in `rustc_errors` -// due to a cyclical dependency between hir and that crate. +impl IntoDiagArg for ConstContext { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::Borrowed(match self { + ConstContext::ConstFn => "const_fn", + ConstContext::Static(_) => "static", + ConstContext::Const { .. } => "const", + })) + } +} /// A literal. pub type Lit = Spanned<LitKind>; diff --git a/compiler/rustc_hir/src/lang_items.rs b/compiler/rustc_hir/src/lang_items.rs index 905b84a8cbe..0464665b41f 100644 --- a/compiler/rustc_hir/src/lang_items.rs +++ b/compiler/rustc_hir/src/lang_items.rs @@ -437,6 +437,9 @@ language_item_table! { DefaultTrait1, sym::default_trait1, default_trait1_trait, Target::Trait, GenericRequirement::None; ContractCheckEnsures, sym::contract_check_ensures, contract_check_ensures_fn, Target::Fn, GenericRequirement::None; + + // Reborrowing related lang-items + Reborrow, sym::reborrow, reborrow, Target::Trait, GenericRequirement::Exact(0); } /// The requirement imposed on the generics of a lang item diff --git a/compiler/rustc_hir/src/lib.rs b/compiler/rustc_hir/src/lib.rs index f1212d07ff6..78fc63753a2 100644 --- a/compiler/rustc_hir/src/lib.rs +++ b/compiler/rustc_hir/src/lib.rs @@ -3,14 +3,11 @@ //! [rustc dev guide]: https://rustc-dev-guide.rust-lang.org/hir.html // tidy-alphabetical-start -#![allow(internal_features)] #![feature(associated_type_defaults)] #![feature(closure_track_caller)] #![feature(debug_closure_helpers)] #![feature(exhaustive_patterns)] -#![feature(negative_impls)] #![feature(never_type)] -#![feature(rustc_attrs)] #![feature(variant_count)] #![recursion_limit = "256"] // tidy-alphabetical-end @@ -25,7 +22,7 @@ pub mod definitions; pub mod diagnostic_items; pub use rustc_span::def_id; mod hir; -pub mod hir_id; +pub use rustc_hir_id::{self as hir_id, *}; pub mod intravisit; pub mod lang_items; pub mod lints; @@ -41,7 +38,6 @@ mod tests; #[doc(no_inline)] pub use hir::*; -pub use hir_id::*; pub use lang_items::{LangItem, LanguageItems}; pub use stability::*; pub use stable_hash_impls::HashStableContext; diff --git a/compiler/rustc_hir/src/lints.rs b/compiler/rustc_hir/src/lints.rs index e3cde2d3bb6..061ec786dc8 100644 --- a/compiler/rustc_hir/src/lints.rs +++ b/compiler/rustc_hir/src/lints.rs @@ -1,8 +1,8 @@ use rustc_data_structures::fingerprint::Fingerprint; use rustc_macros::HashStable_Generic; -use rustc_span::{Span, Symbol}; +use rustc_span::Span; -use crate::{HirId, Target}; +use crate::{AttrPath, HirId, Target}; #[derive(Debug)] pub struct DelayedLints { @@ -34,5 +34,5 @@ pub enum AttributeLintKind { UnusedDuplicate { this: Span, other: Span, warning: bool }, IllFormedAttributeInput { suggestions: Vec<String> }, EmptyAttribute { first_span: Span }, - InvalidTarget { name: Symbol, target: Target, applied: String, only: &'static str }, + InvalidTarget { name: AttrPath, target: Target, applied: Vec<String>, only: &'static str }, } diff --git a/compiler/rustc_hir/src/stable_hash_impls.rs b/compiler/rustc_hir/src/stable_hash_impls.rs index ecc608d437b..16e8bac3d8a 100644 --- a/compiler/rustc_hir/src/stable_hash_impls.rs +++ b/compiler/rustc_hir/src/stable_hash_impls.rs @@ -5,7 +5,7 @@ use crate::HashIgnoredAttrId; use crate::hir::{ AttributeMap, BodyId, Crate, ForeignItemId, ImplItemId, ItemId, OwnerNodes, TraitItemId, }; -use crate::hir_id::{HirId, ItemLocalId}; +use crate::hir_id::ItemLocalId; use crate::lints::DelayedLints; /// Requirements for a `StableHashingContext` to be used in this crate. @@ -15,25 +15,6 @@ pub trait HashStableContext: rustc_ast::HashStableContext + rustc_abi::HashStabl fn hash_attr_id(&mut self, id: &HashIgnoredAttrId, hasher: &mut StableHasher); } -impl<HirCtx: crate::HashStableContext> ToStableHashKey<HirCtx> for HirId { - type KeyType = (DefPathHash, ItemLocalId); - - #[inline] - fn to_stable_hash_key(&self, hcx: &HirCtx) -> (DefPathHash, ItemLocalId) { - let def_path_hash = self.owner.def_id.to_stable_hash_key(hcx); - (def_path_hash, self.local_id) - } -} - -impl<HirCtx: crate::HashStableContext> ToStableHashKey<HirCtx> for ItemLocalId { - type KeyType = ItemLocalId; - - #[inline] - fn to_stable_hash_key(&self, _: &HirCtx) -> ItemLocalId { - *self - } -} - impl<HirCtx: crate::HashStableContext> ToStableHashKey<HirCtx> for BodyId { type KeyType = (DefPathHash, ItemLocalId); diff --git a/compiler/rustc_hir/src/target.rs b/compiler/rustc_hir/src/target.rs index f68dad3a5e8..dcac51b10b4 100644 --- a/compiler/rustc_hir/src/target.rs +++ b/compiler/rustc_hir/src/target.rs @@ -79,6 +79,8 @@ impl Display for Target { } } +rustc_error_messages::into_diag_arg_using_display!(Target); + impl Target { pub fn is_associated_item(self) -> bool { match self { diff --git a/compiler/rustc_hir/src/version.rs b/compiler/rustc_hir/src/version.rs index ab5ab026b4c..bc2c38a4935 100644 --- a/compiler/rustc_hir/src/version.rs +++ b/compiler/rustc_hir/src/version.rs @@ -1,6 +1,8 @@ +use std::borrow::Cow; use std::fmt::{self, Display}; use std::sync::OnceLock; +use rustc_error_messages::{DiagArgValue, IntoDiagArg}; use rustc_macros::{ Decodable, Encodable, HashStable_Generic, PrintAttribute, current_rustc_version, }; @@ -45,3 +47,9 @@ impl Display for RustcVersion { write!(formatter, "{}.{}.{}", self.major, self.minor, self.patch) } } + +impl IntoDiagArg for RustcVersion { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::Owned(self.to_string())) + } +} diff --git a/compiler/rustc_hir_analysis/messages.ftl b/compiler/rustc_hir_analysis/messages.ftl index 2428c1aa29f..06f2ec512ab 100644 --- a/compiler/rustc_hir_analysis/messages.ftl +++ b/compiler/rustc_hir_analysis/messages.ftl @@ -509,10 +509,6 @@ hir_analysis_supertrait_item_shadowee = item from `{$supertrait}` is shadowed by hir_analysis_supertrait_item_shadowing = trait item `{$item}` from `{$subtrait}` shadows identically named item from supertrait -hir_analysis_tait_forward_compat2 = item does not constrain `{$opaque_type}` - .note = consider removing `#[define_opaque]` or adding an empty `#[define_opaque()]` - .opaque = this opaque type is supposed to be constrained - hir_analysis_target_feature_on_main = `main` function is not allowed to have `#[target_feature]` hir_analysis_too_large_static = extern static is too large for the target architecture diff --git a/compiler/rustc_hir_analysis/src/check/check.rs b/compiler/rustc_hir_analysis/src/check/check.rs index 161a8566b04..eccb88a938f 100644 --- a/compiler/rustc_hir_analysis/src/check/check.rs +++ b/compiler/rustc_hir_analysis/src/check/check.rs @@ -2053,3 +2053,29 @@ pub(super) fn check_coroutine_obligations( Ok(()) } + +pub(super) fn check_potentially_region_dependent_goals<'tcx>( + tcx: TyCtxt<'tcx>, + def_id: LocalDefId, +) -> Result<(), ErrorGuaranteed> { + if !tcx.next_trait_solver_globally() { + return Ok(()); + } + let typeck_results = tcx.typeck(def_id); + let param_env = tcx.param_env(def_id); + + // We use `TypingMode::Borrowck` as we want to use the opaque types computed by HIR typeck. + let typing_mode = TypingMode::borrowck(tcx, def_id); + let infcx = tcx.infer_ctxt().ignoring_regions().build(typing_mode); + let ocx = ObligationCtxt::new_with_diagnostics(&infcx); + for (predicate, cause) in &typeck_results.potentially_region_dependent_goals { + let predicate = fold_regions(tcx, *predicate, |_, _| { + infcx.next_region_var(RegionVariableOrigin::Misc(cause.span)) + }); + ocx.register_obligation(Obligation::new(tcx, cause.clone(), param_env, predicate)); + } + + let errors = ocx.select_all_or_error(); + debug!(?errors); + if errors.is_empty() { Ok(()) } else { Err(infcx.err_ctxt().report_fulfillment_errors(errors)) } +} diff --git a/compiler/rustc_hir_analysis/src/check/intrinsic.rs b/compiler/rustc_hir_analysis/src/check/intrinsic.rs index f50aed0b3c2..cfc6bc2f3a0 100644 --- a/compiler/rustc_hir_analysis/src/check/intrinsic.rs +++ b/compiler/rustc_hir_analysis/src/check/intrinsic.rs @@ -136,6 +136,10 @@ fn intrinsic_operation_unsafety(tcx: TyCtxt<'_>, intrinsic_id: LocalDefId) -> hi | sym::round_ties_even_f64 | sym::round_ties_even_f128 | sym::autodiff + | sym::prefetch_read_data + | sym::prefetch_write_data + | sym::prefetch_read_instruction + | sym::prefetch_write_instruction | sym::const_eval_select => hir::Safety::Safe, _ => hir::Safety::Unsafe, }; @@ -218,7 +222,7 @@ pub(crate) fn check_intrinsic_type( | sym::prefetch_write_data | sym::prefetch_read_instruction | sym::prefetch_write_instruction => { - (1, 0, vec![Ty::new_imm_ptr(tcx, param(0)), tcx.types.i32], tcx.types.unit) + (1, 1, vec![Ty::new_imm_ptr(tcx, param(0))], tcx.types.unit) } sym::needs_drop => (1, 0, vec![], tcx.types.bool), diff --git a/compiler/rustc_hir_analysis/src/check/mod.rs b/compiler/rustc_hir_analysis/src/check/mod.rs index 85445cb3c00..2e4b151d4dc 100644 --- a/compiler/rustc_hir_analysis/src/check/mod.rs +++ b/compiler/rustc_hir_analysis/src/check/mod.rs @@ -109,6 +109,7 @@ pub(super) fn provide(providers: &mut Providers) { collect_return_position_impl_trait_in_trait_tys, compare_impl_item: compare_impl_item::compare_impl_item, check_coroutine_obligations: check::check_coroutine_obligations, + check_potentially_region_dependent_goals: check::check_potentially_region_dependent_goals, check_type_wf: wfcheck::check_type_wf, check_well_formed: wfcheck::check_well_formed, ..*providers diff --git a/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs b/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs index 50e20a19eda..b6d898886ac 100644 --- a/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs +++ b/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs @@ -4,9 +4,10 @@ use rustc_hir::{self as hir, Expr, ImplItem, Item, Node, TraitItem, def, intravi use rustc_middle::bug; use rustc_middle::hir::nested_filter; use rustc_middle::ty::{self, DefiningScopeKind, Ty, TyCtxt, TypeVisitableExt}; +use rustc_trait_selection::opaque_types::report_item_does_not_constrain_error; use tracing::{debug, instrument, trace}; -use crate::errors::{TaitForwardCompat2, UnconstrainedOpaqueType}; +use crate::errors::UnconstrainedOpaqueType; /// Checks "defining uses" of opaque `impl Trait` in associated types. /// These can only be defined by associated items of the same trait. @@ -127,14 +128,11 @@ impl<'tcx> TaitConstraintLocator<'tcx> { } fn non_defining_use_in_defining_scope(&mut self, item_def_id: LocalDefId) { - let guar = self.tcx.dcx().emit_err(TaitForwardCompat2 { - span: self - .tcx - .def_ident_span(item_def_id) - .unwrap_or_else(|| self.tcx.def_span(item_def_id)), - opaque_type_span: self.tcx.def_span(self.def_id), - opaque_type: self.tcx.def_path_str(self.def_id), - }); + // We make sure that all opaque types get defined while + // type checking the defining scope, so this error is unreachable + // with the new solver. + assert!(!self.tcx.next_trait_solver_globally()); + let guar = report_item_does_not_constrain_error(self.tcx, item_def_id, self.def_id, None); self.insert_found(ty::OpaqueHiddenType::new_error(self.tcx, guar)); } @@ -252,9 +250,7 @@ pub(super) fn find_opaque_ty_constraints_for_rpit<'tcx>( } else if let Some(hidden_ty) = tables.concrete_opaque_types.get(&def_id) { hidden_ty.ty } else { - // FIXME(-Znext-solver): This should not be necessary and we should - // instead rely on inference variable fallback inside of typeck itself. - + assert!(!tcx.next_trait_solver_globally()); // We failed to resolve the opaque type or it // resolves to itself. We interpret this as the // no values of the hidden type ever being constructed, @@ -273,6 +269,7 @@ pub(super) fn find_opaque_ty_constraints_for_rpit<'tcx>( if let Err(guar) = hir_ty.error_reported() { Ty::new_error(tcx, guar) } else { + assert!(!tcx.next_trait_solver_globally()); hir_ty } } diff --git a/compiler/rustc_hir_analysis/src/errors.rs b/compiler/rustc_hir_analysis/src/errors.rs index 26a98722b34..6565ad7cf53 100644 --- a/compiler/rustc_hir_analysis/src/errors.rs +++ b/compiler/rustc_hir_analysis/src/errors.rs @@ -410,17 +410,6 @@ pub(crate) struct UnconstrainedOpaqueType { pub what: &'static str, } -#[derive(Diagnostic)] -#[diag(hir_analysis_tait_forward_compat2)] -#[note] -pub(crate) struct TaitForwardCompat2 { - #[primary_span] - pub span: Span, - #[note(hir_analysis_opaque)] - pub opaque_type_span: Span, - pub opaque_type: String, -} - pub(crate) struct MissingTypeParams { pub span: Span, pub def_span: Span, diff --git a/compiler/rustc_hir_analysis/src/lib.rs b/compiler/rustc_hir_analysis/src/lib.rs index 3a153ab089a..44a5ceed469 100644 --- a/compiler/rustc_hir_analysis/src/lib.rs +++ b/compiler/rustc_hir_analysis/src/lib.rs @@ -82,7 +82,7 @@ mod coherence; mod collect; mod constrained_generic_params; mod delegation; -mod errors; +pub mod errors; pub mod hir_ty_lowering; pub mod hir_wf_check; mod impl_wf_check; diff --git a/compiler/rustc_hir_id/Cargo.toml b/compiler/rustc_hir_id/Cargo.toml new file mode 100644 index 00000000000..c357a4f62d9 --- /dev/null +++ b/compiler/rustc_hir_id/Cargo.toml @@ -0,0 +1,13 @@ +[package] +name = "rustc_hir_id" +version = "0.0.0" +edition = "2024" + +[dependencies] +# tidy-alphabetical-start +rustc_data_structures = { path = "../rustc_data_structures" } +rustc_index = { path = "../rustc_index" } +rustc_macros = { path = "../rustc_macros" } +rustc_serialize = { path = "../rustc_serialize" } +rustc_span = { path = "../rustc_span" } +# tidy-alphabetical-end diff --git a/compiler/rustc_hir/src/hir_id.rs b/compiler/rustc_hir_id/src/lib.rs index b48a081d371..d07bc88e66a 100644 --- a/compiler/rustc_hir/src/hir_id.rs +++ b/compiler/rustc_hir_id/src/lib.rs @@ -1,11 +1,15 @@ +//! Library containing Id types from `rustc_hir`, split out so crates can use it without depending +//! on all of `rustc_hir` (which is large and depends on other large things like `rustc_target`). +#![allow(internal_features)] +#![feature(negative_impls)] +#![feature(rustc_attrs)] + use std::fmt::{self, Debug}; use rustc_data_structures::stable_hasher::{HashStable, StableHasher, StableOrd, ToStableHashKey}; use rustc_macros::{Decodable, Encodable, HashStable_Generic}; -use rustc_span::HashStableContext; -use rustc_span::def_id::DefPathHash; - -use crate::def_id::{CRATE_DEF_ID, DefId, DefIndex, LocalDefId}; +pub use rustc_span::HashStableContext; +use rustc_span::def_id::{CRATE_DEF_ID, DefId, DefIndex, DefPathHash, LocalDefId}; #[derive(Copy, Clone, PartialEq, Eq, Hash, Encodable, Decodable)] pub struct OwnerId { @@ -171,3 +175,22 @@ pub const CRATE_HIR_ID: HirId = HirId { owner: OwnerId { def_id: CRATE_DEF_ID }, local_id: ItemLocalId::ZERO }; pub const CRATE_OWNER_ID: OwnerId = OwnerId { def_id: CRATE_DEF_ID }; + +impl<CTX: rustc_span::HashStableContext> ToStableHashKey<CTX> for HirId { + type KeyType = (DefPathHash, ItemLocalId); + + #[inline] + fn to_stable_hash_key(&self, hcx: &CTX) -> (DefPathHash, ItemLocalId) { + let def_path_hash = self.owner.def_id.to_stable_hash_key(hcx); + (def_path_hash, self.local_id) + } +} + +impl<CTX: HashStableContext> ToStableHashKey<CTX> for ItemLocalId { + type KeyType = ItemLocalId; + + #[inline] + fn to_stable_hash_key(&self, _: &CTX) -> ItemLocalId { + *self + } +} diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs index b80a2af3100..5aec50c8b53 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs @@ -83,14 +83,6 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { *self.deferred_cast_checks.borrow_mut() = deferred_cast_checks; } - pub(in super::super) fn check_transmutes(&self) { - let mut deferred_transmute_checks = self.deferred_transmute_checks.borrow_mut(); - debug!("FnCtxt::check_transmutes: {} deferred checks", deferred_transmute_checks.len()); - for (from, to, hir_id) in deferred_transmute_checks.drain(..) { - self.check_transmute(from, to, hir_id); - } - } - pub(in super::super) fn check_asms(&self) { let mut deferred_asm_checks = self.deferred_asm_checks.borrow_mut(); debug!("FnCtxt::check_asm: {} deferred checks", deferred_asm_checks.len()); diff --git a/compiler/rustc_hir_typeck/src/intrinsicck.rs b/compiler/rustc_hir_typeck/src/intrinsicck.rs index 194e420b606..7567f8ba348 100644 --- a/compiler/rustc_hir_typeck/src/intrinsicck.rs +++ b/compiler/rustc_hir_typeck/src/intrinsicck.rs @@ -7,11 +7,10 @@ use rustc_hir as hir; use rustc_index::Idx; use rustc_middle::bug; use rustc_middle::ty::layout::{LayoutError, SizeSkeleton}; -use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitableExt}; +use rustc_middle::ty::{self, Ty, TyCtxt}; +use rustc_span::def_id::LocalDefId; use tracing::trace; -use super::FnCtxt; - /// If the type is `Option<T>`, it will return `T`, otherwise /// the type itself. Works on most `Option`-like types. fn unpack_option_like<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> Ty<'tcx> { @@ -39,119 +38,117 @@ fn unpack_option_like<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> Ty<'tcx> { ty } -impl<'a, 'tcx> FnCtxt<'a, 'tcx> { - /// FIXME: Move this check out of typeck, since it'll easily cycle when revealing opaques, - /// and we shouldn't need to check anything here if the typeck results are tainted. - pub(crate) fn check_transmute(&self, from: Ty<'tcx>, to: Ty<'tcx>, hir_id: HirId) { - let tcx = self.tcx; - let dl = &tcx.data_layout; - let span = tcx.hir_span(hir_id); - let normalize = |ty| { - let ty = self.resolve_vars_if_possible(ty); - if let Ok(ty) = - self.tcx.try_normalize_erasing_regions(self.typing_env(self.param_env), ty) - { - ty +/// Try to display a sensible error with as much information as possible. +fn skeleton_string<'tcx>( + ty: Ty<'tcx>, + sk: Result<SizeSkeleton<'tcx>, &'tcx LayoutError<'tcx>>, +) -> String { + match sk { + Ok(SizeSkeleton::Pointer { tail, .. }) => format!("pointer to `{tail}`"), + Ok(SizeSkeleton::Known(size, _)) => { + if let Some(v) = u128::from(size.bytes()).checked_mul(8) { + format!("{v} bits") } else { - Ty::new_error_with_message( - tcx, - span, - "tried to normalize non-wf type in check_transmute", - ) + // `u128` should definitely be able to hold the size of different architectures + // larger sizes should be reported as error `are too big for the target architecture` + // otherwise we have a bug somewhere + bug!("{:?} overflow for u128", size) } - }; - let from = normalize(from); - let to = normalize(to); - trace!(?from, ?to); - if from.has_non_region_infer() || to.has_non_region_infer() { - // Note: this path is currently not reached in any test, so any - // example that triggers this would be worth minimizing and - // converting into a test. - self.dcx().span_bug(span, "argument to transmute has inference variables"); } - // Transmutes that are only changing lifetimes are always ok. - if from == to { - return; + Ok(SizeSkeleton::Generic(size)) => { + format!("generic size {size}") + } + Err(LayoutError::TooGeneric(bad)) => { + if *bad == ty { + "this type does not have a fixed size".to_owned() + } else { + format!("size can vary because of {bad}") + } + } + Err(err) => err.to_string(), + } +} + +fn check_transmute<'tcx>( + tcx: TyCtxt<'tcx>, + typing_env: ty::TypingEnv<'tcx>, + from: Ty<'tcx>, + to: Ty<'tcx>, + hir_id: HirId, +) { + let span = || tcx.hir_span(hir_id); + let normalize = |ty| { + if let Ok(ty) = tcx.try_normalize_erasing_regions(typing_env, ty) { + ty + } else { + Ty::new_error_with_message( + tcx, + span(), + format!("tried to normalize non-wf type {ty:#?} in check_transmute"), + ) } + }; - let skel = |ty| SizeSkeleton::compute(ty, tcx, self.typing_env(self.param_env)); - let sk_from = skel(from); - let sk_to = skel(to); - trace!(?sk_from, ?sk_to); + let from = normalize(from); + let to = normalize(to); + trace!(?from, ?to); - // Check for same size using the skeletons. - if let (Ok(sk_from), Ok(sk_to)) = (sk_from, sk_to) { - if sk_from.same_size(sk_to) { - return; - } + // Transmutes that are only changing lifetimes are always ok. + if from == to { + return; + } - // Special-case transmuting from `typeof(function)` and - // `Option<typeof(function)>` to present a clearer error. - let from = unpack_option_like(tcx, from); - if let (&ty::FnDef(..), SizeSkeleton::Known(size_to, _)) = (from.kind(), sk_to) - && size_to == Pointer(dl.instruction_address_space).size(&tcx) - { - struct_span_code_err!(self.dcx(), span, E0591, "can't transmute zero-sized type") - .with_note(format!("source type: {from}")) - .with_note(format!("target type: {to}")) - .with_help("cast with `as` to a pointer instead") - .emit(); - return; - } + let sk_from = SizeSkeleton::compute(from, tcx, typing_env); + let sk_to = SizeSkeleton::compute(to, tcx, typing_env); + trace!(?sk_from, ?sk_to); + + // Check for same size using the skeletons. + if let Ok(sk_from) = sk_from + && let Ok(sk_to) = sk_to + { + if sk_from.same_size(sk_to) { + return; } - // Try to display a sensible error with as much information as possible. - let skeleton_string = |ty: Ty<'tcx>, sk: Result<_, &_>| match sk { - Ok(SizeSkeleton::Pointer { tail, .. }) => format!("pointer to `{tail}`"), - Ok(SizeSkeleton::Known(size, _)) => { - if let Some(v) = u128::from(size.bytes()).checked_mul(8) { - format!("{v} bits") - } else { - // `u128` should definitely be able to hold the size of different architectures - // larger sizes should be reported as error `are too big for the target architecture` - // otherwise we have a bug somewhere - bug!("{:?} overflow for u128", size) - } - } - Ok(SizeSkeleton::Generic(size)) => { - if let Some(size) = - self.try_structurally_resolve_const(span, size).try_to_target_usize(tcx) - { - format!("{size} bytes") - } else { - format!("generic size {size}") - } - } - Err(LayoutError::TooGeneric(bad)) => { - if *bad == ty { - "this type does not have a fixed size".to_owned() - } else { - format!("size can vary because of {bad}") - } - } - Err(err) => err.to_string(), - }; - - let mut err = struct_span_code_err!( - self.dcx(), - span, - E0512, - "cannot transmute between types of different sizes, \ - or dependently-sized types" - ); - if from == to { - err.note(format!("`{from}` does not have a fixed size")); - err.emit(); - } else { - err.note(format!("source type: `{}` ({})", from, skeleton_string(from, sk_from))) - .note(format!("target type: `{}` ({})", to, skeleton_string(to, sk_to))); - if let Err(LayoutError::ReferencesError(_)) = sk_from { - err.delay_as_bug(); - } else if let Err(LayoutError::ReferencesError(_)) = sk_to { - err.delay_as_bug(); - } else { - err.emit(); - } + // Special-case transmuting from `typeof(function)` and + // `Option<typeof(function)>` to present a clearer error. + let from = unpack_option_like(tcx, from); + if let ty::FnDef(..) = from.kind() + && let SizeSkeleton::Known(size_to, _) = sk_to + && size_to == Pointer(tcx.data_layout.instruction_address_space).size(&tcx) + { + struct_span_code_err!(tcx.sess.dcx(), span(), E0591, "can't transmute zero-sized type") + .with_note(format!("source type: {from}")) + .with_note(format!("target type: {to}")) + .with_help("cast with `as` to a pointer instead") + .emit(); + return; } } + + let mut err = struct_span_code_err!( + tcx.sess.dcx(), + span(), + E0512, + "cannot transmute between types of different sizes, or dependently-sized types" + ); + if from == to { + err.note(format!("`{from}` does not have a fixed size")); + err.emit(); + } else { + err.note(format!("source type: `{}` ({})", from, skeleton_string(from, sk_from))); + err.note(format!("target type: `{}` ({})", to, skeleton_string(to, sk_to))); + err.emit(); + } +} + +pub(crate) fn check_transmutes(tcx: TyCtxt<'_>, owner: LocalDefId) { + assert!(!tcx.is_typeck_child(owner.to_def_id())); + let typeck_results = tcx.typeck(owner); + let None = typeck_results.tainted_by_errors else { return }; + + let typing_env = ty::TypingEnv::post_analysis(tcx, owner); + for &(from, to, hir_id) in &typeck_results.transmutes_to_check { + check_transmute(tcx, typing_env, from, to, hir_id); + } } diff --git a/compiler/rustc_hir_typeck/src/lib.rs b/compiler/rustc_hir_typeck/src/lib.rs index aae870f7ee3..879b7472736 100644 --- a/compiler/rustc_hir_typeck/src/lib.rs +++ b/compiler/rustc_hir_typeck/src/lib.rs @@ -53,7 +53,7 @@ use rustc_hir_analysis::check::{check_abi, check_custom_abi}; use rustc_hir_analysis::hir_ty_lowering::HirTyLowerer; use rustc_infer::traits::{ObligationCauseCode, ObligationInspector, WellFormedLoc}; use rustc_middle::query::Providers; -use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitableExt}; +use rustc_middle::ty::{self, Ty, TyCtxt}; use rustc_middle::{bug, span_bug}; use rustc_session::config; use rustc_span::Span; @@ -247,33 +247,21 @@ fn typeck_with_inspect<'tcx>( debug!(pending_obligations = ?fcx.fulfillment_cx.borrow().pending_obligations()); - if let None = fcx.infcx.tainted_by_errors() { - fcx.report_ambiguity_errors(); + // We need to handle opaque types before emitting ambiguity errors as applying + // defining uses may guide type inference. + if fcx.next_trait_solver() { + fcx.handle_opaque_type_uses_next(); } + fcx.select_obligations_where_possible(|_| {}); if let None = fcx.infcx.tainted_by_errors() { - fcx.check_transmutes(); + fcx.report_ambiguity_errors(); } fcx.check_asms(); let typeck_results = fcx.resolve_type_vars_in_body(body); - // Handle potentially region dependent goals, see `InferCtxt::in_hir_typeck`. - if let None = fcx.infcx.tainted_by_errors() { - for obligation in fcx.take_hir_typeck_potentially_region_dependent_goals() { - let obligation = fcx.resolve_vars_if_possible(obligation); - if obligation.has_non_region_infer() { - bug!("unexpected inference variable after writeback: {obligation:?}"); - } - fcx.register_predicate(obligation); - } - fcx.select_obligations_where_possible(|_| {}); - if let None = fcx.infcx.tainted_by_errors() { - fcx.report_ambiguity_errors(); - } - } - fcx.detect_opaque_types_added_during_writeback(); // Consistency check our TypeckResults instance can hold all ItemLocalIds @@ -555,6 +543,7 @@ pub fn provide(providers: &mut Providers) { method_autoderef_steps: method::probe::method_autoderef_steps, typeck, used_trait_imports, + check_transmutes: intrinsicck::check_transmutes, ..*providers }; } diff --git a/compiler/rustc_hir_typeck/src/method/probe.rs b/compiler/rustc_hir_typeck/src/method/probe.rs index 3ca3b56b87e..f5c3ebd8375 100644 --- a/compiler/rustc_hir_typeck/src/method/probe.rs +++ b/compiler/rustc_hir_typeck/src/method/probe.rs @@ -909,6 +909,10 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> { debug_assert_matches!(param_ty.kind(), ty::Param(_)); let tcx = self.tcx; + + // We use `DeepRejectCtxt` here which may return false positive on where clauses + // with alias self types. We need to later on reject these as inherent candidates + // in `consider_probe`. let bounds = self.param_env.caller_bounds().iter().filter_map(|predicate| { let bound_predicate = predicate.kind(); match bound_predicate.skip_binder() { @@ -1945,6 +1949,29 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> { ); (xform_self_ty, xform_ret_ty) = self.xform_self_ty(probe.item, trait_ref.self_ty(), trait_ref.args); + + if matches!(probe.kind, WhereClauseCandidate(_)) { + // `WhereClauseCandidate` requires that the self type is a param, + // because it has special behavior with candidate preference as an + // inherent pick. + match ocx.structurally_normalize_ty( + cause, + self.param_env, + trait_ref.self_ty(), + ) { + Ok(ty) => { + if !matches!(ty.kind(), ty::Param(_)) { + debug!("--> not a param ty: {xform_self_ty:?}"); + return ProbeResult::NoMatch; + } + } + Err(errors) => { + debug!("--> cannot relate self-types {:?}", errors); + return ProbeResult::NoMatch; + } + } + } + xform_self_ty = ocx.normalize(cause, self.param_env, xform_self_ty); match ocx.relate(cause, self.param_env, self.variance(), self_ty, xform_self_ty) { diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index 824d592fa6c..c8f6c06b720 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -13,9 +13,7 @@ use rustc_data_structures::fx::{FxIndexMap, FxIndexSet}; use rustc_data_structures::sorted_map::SortedMap; use rustc_data_structures::unord::UnordSet; use rustc_errors::codes::*; -use rustc_errors::{ - Applicability, Diag, DiagStyledString, MultiSpan, StashKey, pluralize, struct_span_code_err, -}; +use rustc_errors::{Applicability, Diag, MultiSpan, StashKey, pluralize, struct_span_code_err}; use rustc_hir::attrs::AttributeKind; use rustc_hir::def::{CtorKind, DefKind, Res}; use rustc_hir::def_id::DefId; @@ -1560,11 +1558,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ); } - if rcvr_ty.is_numeric() && rcvr_ty.is_fresh() - || restrict_type_params - || suggested_derive - || self.lookup_alternative_tuple_impls(&mut err, &unsatisfied_predicates) - { + if rcvr_ty.is_numeric() && rcvr_ty.is_fresh() || restrict_type_params || suggested_derive { } else { self.suggest_traits_to_import( &mut err, @@ -1741,119 +1735,6 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { err.emit() } - /// If the predicate failure is caused by an unmet bound on a tuple, recheck if the bound would - /// succeed if all the types on the tuple had no borrows. This is a common problem for libraries - /// like Bevy and ORMs, which rely heavily on traits being implemented on tuples. - fn lookup_alternative_tuple_impls( - &self, - err: &mut Diag<'_>, - unsatisfied_predicates: &[( - ty::Predicate<'tcx>, - Option<ty::Predicate<'tcx>>, - Option<ObligationCause<'tcx>>, - )], - ) -> bool { - let mut found_tuple = false; - for (pred, root, _ob) in unsatisfied_predicates { - let mut preds = vec![pred]; - if let Some(root) = root { - // We will look at both the current predicate and the root predicate that caused it - // to be needed. If calling something like `<(A, &B)>::default()`, then `pred` is - // `&B: Default` and `root` is `(A, &B): Default`, which is the one we are checking - // for further down, so we check both. - preds.push(root); - } - for pred in preds { - if let Some(clause) = pred.as_clause() - && let Some(clause) = clause.as_trait_clause() - && let ty = clause.self_ty().skip_binder() - && let ty::Tuple(types) = ty.kind() - { - let path = clause.skip_binder().trait_ref.print_only_trait_path(); - let def_id = clause.def_id(); - let ty = Ty::new_tup( - self.tcx, - self.tcx.mk_type_list_from_iter(types.iter().map(|ty| ty.peel_refs())), - ); - let args = ty::GenericArgs::for_item(self.tcx, def_id, |param, _| { - if param.index == 0 { - ty.into() - } else { - self.infcx.var_for_def(DUMMY_SP, param) - } - }); - if self - .infcx - .type_implements_trait(def_id, args, self.param_env) - .must_apply_modulo_regions() - { - // "`Trait` is implemented for `(A, B)` but not for `(A, &B)`" - let mut msg = DiagStyledString::normal(format!("`{path}` ")); - msg.push_highlighted("is"); - msg.push_normal(" implemented for `("); - let len = types.len(); - for (i, t) in types.iter().enumerate() { - msg.push( - format!("{}", with_forced_trimmed_paths!(t.peel_refs())), - t.peel_refs() != t, - ); - if i < len - 1 { - msg.push_normal(", "); - } - } - msg.push_normal(")` but "); - msg.push_highlighted("not"); - msg.push_normal(" for `("); - for (i, t) in types.iter().enumerate() { - msg.push( - format!("{}", with_forced_trimmed_paths!(t)), - t.peel_refs() != t, - ); - if i < len - 1 { - msg.push_normal(", "); - } - } - msg.push_normal(")`"); - - // Find the span corresponding to the impl that was found to point at it. - if let Some(impl_span) = self - .tcx - .all_impls(def_id) - .filter(|&impl_def_id| { - let header = self.tcx.impl_trait_header(impl_def_id).unwrap(); - let trait_ref = header.trait_ref.instantiate( - self.tcx, - self.infcx.fresh_args_for_item(DUMMY_SP, impl_def_id), - ); - - let value = ty::fold_regions(self.tcx, ty, |_, _| { - self.tcx.lifetimes.re_erased - }); - // FIXME: Don't bother dealing with non-lifetime binders here... - if value.has_escaping_bound_vars() { - return false; - } - self.infcx.can_eq(ty::ParamEnv::empty(), trait_ref.self_ty(), value) - && header.polarity == ty::ImplPolarity::Positive - }) - .map(|impl_def_id| self.tcx.def_span(impl_def_id)) - .next() - { - err.highlighted_span_note(impl_span, msg.0); - } else { - err.highlighted_note(msg.0); - } - found_tuple = true; - } - // If `pred` was already on the tuple, we don't need to look at the root - // obligation too. - break; - } - } - } - found_tuple - } - /// If an appropriate error source is not found, check method chain for possible candidates fn lookup_segments_chain_for_no_match_method( &self, diff --git a/compiler/rustc_hir_typeck/src/opaque_types.rs b/compiler/rustc_hir_typeck/src/opaque_types.rs index e0224f8c6e1..97feac3d009 100644 --- a/compiler/rustc_hir_typeck/src/opaque_types.rs +++ b/compiler/rustc_hir_typeck/src/opaque_types.rs @@ -1,5 +1,218 @@ -use super::FnCtxt; +use rustc_hir::def::DefKind; +use rustc_infer::traits::ObligationCause; +use rustc_middle::ty::{ + self, DefiningScopeKind, EarlyBinder, OpaqueHiddenType, OpaqueTypeKey, TypeVisitableExt, + TypingMode, +}; +use rustc_trait_selection::error_reporting::infer::need_type_info::TypeAnnotationNeeded; +use rustc_trait_selection::opaque_types::{ + NonDefiningUseReason, opaque_type_has_defining_use_args, report_item_does_not_constrain_error, +}; +use rustc_trait_selection::solve; +use tracing::{debug, instrument}; + +use crate::FnCtxt; + impl<'tcx> FnCtxt<'_, 'tcx> { + /// This takes all the opaque type uses during HIR typeck. It first computes + /// the concrete hidden type by iterating over all defining uses. + /// + /// A use during HIR typeck is defining if all non-lifetime arguments are + /// unique generic parameters and the hidden type does not reference any + /// inference variables. + /// + /// It then uses these defining uses to guide inference for all other uses. + #[instrument(level = "debug", skip(self))] + pub(super) fn handle_opaque_type_uses_next(&mut self) { + // We clone the opaques instead of stealing them here as they are still used for + // normalization in the next generation trait solver. + let mut opaque_types: Vec<_> = self.infcx.clone_opaque_types(); + let num_entries = self.inner.borrow_mut().opaque_types().num_entries(); + let prev = self.checked_opaque_types_storage_entries.replace(Some(num_entries)); + debug_assert_eq!(prev, None); + for entry in &mut opaque_types { + *entry = self.resolve_vars_if_possible(*entry); + } + debug!(?opaque_types); + + self.compute_concrete_opaque_types(&opaque_types); + self.apply_computed_concrete_opaque_types(&opaque_types); + } +} + +enum UsageKind<'tcx> { + None, + NonDefiningUse(OpaqueTypeKey<'tcx>, OpaqueHiddenType<'tcx>), + UnconstrainedHiddenType(OpaqueHiddenType<'tcx>), + HasDefiningUse, +} + +impl<'tcx> UsageKind<'tcx> { + fn merge(&mut self, other: UsageKind<'tcx>) { + match (&*self, &other) { + (UsageKind::HasDefiningUse, _) | (_, UsageKind::None) => unreachable!(), + (UsageKind::None, _) => *self = other, + // When mergining non-defining uses, prefer earlier ones. This means + // the error happens as early as possible. + ( + UsageKind::NonDefiningUse(..) | UsageKind::UnconstrainedHiddenType(..), + UsageKind::NonDefiningUse(..), + ) => {} + // When merging unconstrained hidden types, we prefer later ones. This is + // used as in most cases, the defining use is the final return statement + // of our function, and other uses with defining arguments are likely not + // intended to be defining. + ( + UsageKind::NonDefiningUse(..) | UsageKind::UnconstrainedHiddenType(..), + UsageKind::UnconstrainedHiddenType(..) | UsageKind::HasDefiningUse, + ) => *self = other, + } + } +} + +impl<'tcx> FnCtxt<'_, 'tcx> { + fn compute_concrete_opaque_types( + &mut self, + opaque_types: &[(OpaqueTypeKey<'tcx>, OpaqueHiddenType<'tcx>)], + ) { + let tcx = self.tcx; + let TypingMode::Analysis { defining_opaque_types_and_generators } = self.typing_mode() + else { + unreachable!(); + }; + + for def_id in defining_opaque_types_and_generators { + match tcx.def_kind(def_id) { + DefKind::OpaqueTy => {} + DefKind::Closure => continue, + _ => unreachable!("not opaque or generator: {def_id:?}"), + } + + let mut usage_kind = UsageKind::None; + for &(opaque_type_key, hidden_type) in opaque_types { + if opaque_type_key.def_id != def_id { + continue; + } + + usage_kind.merge(self.consider_opaque_type_use(opaque_type_key, hidden_type)); + if let UsageKind::HasDefiningUse = usage_kind { + break; + } + } + + let guar = match usage_kind { + UsageKind::None => { + if let Some(guar) = self.tainted_by_errors() { + guar + } else { + report_item_does_not_constrain_error(self.tcx, self.body_id, def_id, None) + } + } + UsageKind::NonDefiningUse(opaque_type_key, hidden_type) => { + report_item_does_not_constrain_error( + self.tcx, + self.body_id, + def_id, + Some((opaque_type_key, hidden_type.span)), + ) + } + UsageKind::UnconstrainedHiddenType(hidden_type) => { + let infer_var = hidden_type + .ty + .walk() + .filter_map(ty::GenericArg::as_term) + .find(|term| term.is_infer()) + .unwrap_or_else(|| hidden_type.ty.into()); + self.err_ctxt() + .emit_inference_failure_err( + self.body_id, + hidden_type.span, + infer_var, + TypeAnnotationNeeded::E0282, + false, + ) + .emit() + } + UsageKind::HasDefiningUse => continue, + }; + + self.typeck_results + .borrow_mut() + .concrete_opaque_types + .insert(def_id, OpaqueHiddenType::new_error(tcx, guar)); + self.set_tainted_by_errors(guar); + } + } + + fn consider_opaque_type_use( + &mut self, + opaque_type_key: OpaqueTypeKey<'tcx>, + hidden_type: OpaqueHiddenType<'tcx>, + ) -> UsageKind<'tcx> { + if let Err(err) = opaque_type_has_defining_use_args( + &self, + opaque_type_key, + hidden_type.span, + DefiningScopeKind::HirTypeck, + ) { + match err { + NonDefiningUseReason::Tainted(guar) => { + self.typeck_results.borrow_mut().concrete_opaque_types.insert( + opaque_type_key.def_id, + OpaqueHiddenType::new_error(self.tcx, guar), + ); + return UsageKind::HasDefiningUse; + } + _ => return UsageKind::NonDefiningUse(opaque_type_key, hidden_type), + }; + } + + // We ignore uses of the opaque if they have any inference variables + // as this can frequently happen with recursive calls. + // + // See `tests/ui/traits/next-solver/opaques/universal-args-non-defining.rs`. + if hidden_type.ty.has_non_region_infer() { + return UsageKind::UnconstrainedHiddenType(hidden_type); + } + + let cause = ObligationCause::misc(hidden_type.span, self.body_id); + let at = self.at(&cause, self.param_env); + let hidden_type = match solve::deeply_normalize(at, hidden_type) { + Ok(hidden_type) => hidden_type, + Err(errors) => { + let guar = self.err_ctxt().report_fulfillment_errors(errors); + OpaqueHiddenType::new_error(self.tcx, guar) + } + }; + let hidden_type = hidden_type.remap_generic_params_to_declaration_params( + opaque_type_key, + self.tcx, + DefiningScopeKind::HirTypeck, + ); + + let prev = self + .typeck_results + .borrow_mut() + .concrete_opaque_types + .insert(opaque_type_key.def_id, hidden_type); + assert!(prev.is_none()); + UsageKind::HasDefiningUse + } + + fn apply_computed_concrete_opaque_types( + &mut self, + opaque_types: &[(OpaqueTypeKey<'tcx>, OpaqueHiddenType<'tcx>)], + ) { + let tcx = self.tcx; + for &(key, hidden_type) in opaque_types { + let expected = + *self.typeck_results.borrow_mut().concrete_opaque_types.get(&key.def_id).unwrap(); + + let expected = EarlyBinder::bind(expected.ty).instantiate(tcx, key.args); + self.demand_eqtype(hidden_type.span, expected, hidden_type.ty); + } + } + /// We may in theory add further uses of an opaque after cloning the opaque /// types storage during writeback when computing the defining uses. /// diff --git a/compiler/rustc_hir_typeck/src/writeback.rs b/compiler/rustc_hir_typeck/src/writeback.rs index 093de950d63..253eacbf353 100644 --- a/compiler/rustc_hir_typeck/src/writeback.rs +++ b/compiler/rustc_hir_typeck/src/writeback.rs @@ -27,7 +27,7 @@ use rustc_middle::ty::{ }; use rustc_span::{Span, sym}; use rustc_trait_selection::error_reporting::infer::need_type_info::TypeAnnotationNeeded; -use rustc_trait_selection::opaque_types::check_opaque_type_parameter_valid; +use rustc_trait_selection::opaque_types::opaque_type_has_defining_use_args; use rustc_trait_selection::solve; use tracing::{debug, instrument}; @@ -74,7 +74,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { wbcx.visit_user_provided_tys(); wbcx.visit_user_provided_sigs(); wbcx.visit_coroutine_interior(); + wbcx.visit_transmutes(); wbcx.visit_offset_of_container_types(); + wbcx.visit_potentially_region_dependent_goals(); wbcx.typeck_results.rvalue_scopes = mem::take(&mut self.typeck_results.borrow_mut().rvalue_scopes); @@ -532,8 +534,36 @@ impl<'cx, 'tcx> WritebackCx<'cx, 'tcx> { } } + fn visit_transmutes(&mut self) { + let tcx = self.tcx(); + let fcx_typeck_results = self.fcx.typeck_results.borrow(); + assert_eq!(fcx_typeck_results.hir_owner, self.typeck_results.hir_owner); + for &(from, to, hir_id) in self.fcx.deferred_transmute_checks.borrow().iter() { + let span = tcx.hir_span(hir_id); + let from = self.resolve(from, &span); + let to = self.resolve(to, &span); + self.typeck_results.transmutes_to_check.push((from, to, hir_id)); + } + } + + fn visit_opaque_types_next(&mut self) { + let mut fcx_typeck_results = self.fcx.typeck_results.borrow_mut(); + assert_eq!(fcx_typeck_results.hir_owner, self.typeck_results.hir_owner); + for hidden_ty in fcx_typeck_results.concrete_opaque_types.values() { + assert!(!hidden_ty.has_infer()); + } + + assert_eq!(self.typeck_results.concrete_opaque_types.len(), 0); + self.typeck_results.concrete_opaque_types = + mem::take(&mut fcx_typeck_results.concrete_opaque_types); + } + #[instrument(skip(self), level = "debug")] fn visit_opaque_types(&mut self) { + if self.fcx.next_trait_solver() { + return self.visit_opaque_types_next(); + } + let tcx = self.tcx(); // We clone the opaques instead of stealing them here as they are still used for // normalization in the next generation trait solver. @@ -544,17 +574,14 @@ impl<'cx, 'tcx> WritebackCx<'cx, 'tcx> { for (opaque_type_key, hidden_type) in opaque_types { let hidden_type = self.resolve(hidden_type, &hidden_type.span); let opaque_type_key = self.resolve(opaque_type_key, &hidden_type.span); - - if !self.fcx.next_trait_solver() { - if let ty::Alias(ty::Opaque, alias_ty) = hidden_type.ty.kind() - && alias_ty.def_id == opaque_type_key.def_id.to_def_id() - && alias_ty.args == opaque_type_key.args - { - continue; - } + if let ty::Alias(ty::Opaque, alias_ty) = hidden_type.ty.kind() + && alias_ty.def_id == opaque_type_key.def_id.to_def_id() + && alias_ty.args == opaque_type_key.args + { + continue; } - if let Err(err) = check_opaque_type_parameter_valid( + if let Err(err) = opaque_type_has_defining_use_args( &self.fcx, opaque_type_key, hidden_type.span, @@ -762,6 +789,32 @@ impl<'cx, 'tcx> WritebackCx<'cx, 'tcx> { } } + fn visit_potentially_region_dependent_goals(&mut self) { + let obligations = self.fcx.take_hir_typeck_potentially_region_dependent_goals(); + if let None = self.fcx.tainted_by_errors() { + for obligation in obligations { + let (predicate, mut cause) = + self.fcx.resolve_vars_if_possible((obligation.predicate, obligation.cause)); + if predicate.has_non_region_infer() { + self.fcx.dcx().span_delayed_bug( + cause.span, + format!("unexpected inference variable after writeback: {predicate:?}"), + ); + } else { + let predicate = self.tcx().erase_regions(predicate); + if cause.has_infer() || cause.has_placeholders() { + // We can't use the the obligation cause as it references + // information local to this query. + cause = self.fcx.misc(cause.span); + } + self.typeck_results + .potentially_region_dependent_goals + .insert((predicate, cause)); + } + } + } + } + fn resolve<T>(&mut self, value: T, span: &dyn Locatable) -> T where T: TypeFoldable<TyCtxt<'tcx>>, @@ -883,6 +936,7 @@ impl<'cx, 'tcx> Resolver<'cx, 'tcx> { } } + #[instrument(level = "debug", skip(self, outer_exclusive_binder, new_err))] fn handle_term<T>( &mut self, value: T, diff --git a/compiler/rustc_index/src/bit_set.rs b/compiler/rustc_index/src/bit_set.rs index 645d95b1dba..684bd34f909 100644 --- a/compiler/rustc_index/src/bit_set.rs +++ b/compiler/rustc_index/src/bit_set.rs @@ -491,19 +491,15 @@ pub struct ChunkedBitSet<T> { marker: PhantomData<T>, } -// Note: the chunk domain size is duplicated in each variant. This is a bit -// inconvenient, but it allows the type size to be smaller than if we had an -// outer struct containing a chunk domain size plus the `Chunk`, because the -// compiler can place the chunk domain size after the tag. +// NOTE: The chunk size is computed on-the-fly on each manipulation of a chunk. +// This avoids storing it, as it's almost always CHUNK_BITS except for the last one. #[derive(Clone, Debug, PartialEq, Eq)] enum Chunk { /// A chunk that is all zeros; we don't represent the zeros explicitly. - /// The `ChunkSize` is always non-zero. - Zeros(ChunkSize), + Zeros, /// A chunk that is all ones; we don't represent the ones explicitly. - /// `ChunkSize` is always non-zero. - Ones(ChunkSize), + Ones, /// A chunk that has a mix of zeros and ones, which are represented /// explicitly and densely. It never has all zeros or all ones. @@ -514,16 +510,14 @@ enum Chunk { /// to store the length, which would make this type larger. These excess /// words are always zero, as are any excess bits in the final in-use word. /// - /// The first `ChunkSize` field is always non-zero. - /// - /// The second `ChunkSize` field is the count of 1s set in the chunk, and + /// The `ChunkSize` field is the count of 1s set in the chunk, and /// must satisfy `0 < count < chunk_domain_size`. /// /// The words are within an `Rc` because it's surprisingly common to /// duplicate an entire chunk, e.g. in `ChunkedBitSet::clone_from()`, or /// when a `Mixed` chunk is union'd into a `Zeros` chunk. When we do need /// to modify a chunk we use `Rc::make_mut`. - Mixed(ChunkSize, ChunkSize, Rc<[Word; CHUNK_WORDS]>), + Mixed(ChunkSize, Rc<[Word; CHUNK_WORDS]>), } // This type is used a lot. Make sure it doesn't unintentionally get bigger. @@ -535,6 +529,22 @@ impl<T> ChunkedBitSet<T> { self.domain_size } + #[inline] + fn last_chunk_size(&self) -> ChunkSize { + let n = self.domain_size % CHUNK_BITS; + if n == 0 { CHUNK_BITS as ChunkSize } else { n as ChunkSize } + } + + /// All the chunks have a chunk_domain_size of `CHUNK_BITS` except the final one. + #[inline] + fn chunk_domain_size(&self, chunk: usize) -> ChunkSize { + if chunk == self.chunks.len() - 1 { + self.last_chunk_size() + } else { + CHUNK_BITS as ChunkSize + } + } + #[cfg(test)] fn assert_valid(&self) { if self.domain_size == 0 { @@ -544,8 +554,9 @@ impl<T> ChunkedBitSet<T> { assert!((self.chunks.len() - 1) * CHUNK_BITS <= self.domain_size); assert!(self.chunks.len() * CHUNK_BITS >= self.domain_size); - for chunk in self.chunks.iter() { - chunk.assert_valid(); + for (chunk_index, chunk) in self.chunks.iter().enumerate() { + let chunk_domain_size = self.chunk_domain_size(chunk_index); + chunk.assert_valid(chunk_domain_size); } } } @@ -556,16 +567,7 @@ impl<T: Idx> ChunkedBitSet<T> { let chunks = if domain_size == 0 { Box::new([]) } else { - // All the chunks have a chunk_domain_size of `CHUNK_BITS` except - // the final one. - let final_chunk_domain_size = { - let n = domain_size % CHUNK_BITS; - if n == 0 { CHUNK_BITS } else { n } - }; - let mut chunks = - vec![Chunk::new(CHUNK_BITS, is_empty); num_chunks(domain_size)].into_boxed_slice(); - *chunks.last_mut().unwrap() = Chunk::new(final_chunk_domain_size, is_empty); - chunks + vec![if is_empty { Zeros } else { Ones }; num_chunks(domain_size)].into_boxed_slice() }; ChunkedBitSet { domain_size, chunks, marker: PhantomData } } @@ -594,11 +596,15 @@ impl<T: Idx> ChunkedBitSet<T> { /// Count the number of bits in the set. pub fn count(&self) -> usize { - self.chunks.iter().map(|chunk| chunk.count()).sum() + self.chunks + .iter() + .enumerate() + .map(|(index, chunk)| chunk.count(self.chunk_domain_size(index))) + .sum() } pub fn is_empty(&self) -> bool { - self.chunks.iter().all(|chunk| matches!(chunk, Zeros(..))) + self.chunks.iter().all(|chunk| matches!(chunk, Zeros)) } /// Returns `true` if `self` contains `elem`. @@ -607,9 +613,9 @@ impl<T: Idx> ChunkedBitSet<T> { assert!(elem.index() < self.domain_size); let chunk = &self.chunks[chunk_index(elem)]; match &chunk { - Zeros(_) => false, - Ones(_) => true, - Mixed(_, _, words) => { + Zeros => false, + Ones => true, + Mixed(_, words) => { let (word_index, mask) = chunk_word_index_and_mask(elem); (words[word_index] & mask) != 0 } @@ -625,9 +631,10 @@ impl<T: Idx> ChunkedBitSet<T> { pub fn insert(&mut self, elem: T) -> bool { assert!(elem.index() < self.domain_size); let chunk_index = chunk_index(elem); + let chunk_domain_size = self.chunk_domain_size(chunk_index); let chunk = &mut self.chunks[chunk_index]; match *chunk { - Zeros(chunk_domain_size) => { + Zeros => { if chunk_domain_size > 1 { #[cfg(feature = "nightly")] let mut words = { @@ -649,14 +656,14 @@ impl<T: Idx> ChunkedBitSet<T> { let (word_index, mask) = chunk_word_index_and_mask(elem); words_ref[word_index] |= mask; - *chunk = Mixed(chunk_domain_size, 1, words); + *chunk = Mixed(1, words); } else { - *chunk = Ones(chunk_domain_size); + *chunk = Ones; } true } - Ones(_) => false, - Mixed(chunk_domain_size, ref mut count, ref mut words) => { + Ones => false, + Mixed(ref mut count, ref mut words) => { // We skip all the work if the bit is already set. let (word_index, mask) = chunk_word_index_and_mask(elem); if (words[word_index] & mask) == 0 { @@ -665,7 +672,7 @@ impl<T: Idx> ChunkedBitSet<T> { let words = Rc::make_mut(words); words[word_index] |= mask; } else { - *chunk = Ones(chunk_domain_size); + *chunk = Ones; } true } else { @@ -678,11 +685,7 @@ impl<T: Idx> ChunkedBitSet<T> { /// Sets all bits to true. pub fn insert_all(&mut self) { for chunk in self.chunks.iter_mut() { - *chunk = match *chunk { - Zeros(chunk_domain_size) - | Ones(chunk_domain_size) - | Mixed(chunk_domain_size, ..) => Ones(chunk_domain_size), - } + *chunk = Ones; } } @@ -690,10 +693,11 @@ impl<T: Idx> ChunkedBitSet<T> { pub fn remove(&mut self, elem: T) -> bool { assert!(elem.index() < self.domain_size); let chunk_index = chunk_index(elem); + let chunk_domain_size = self.chunk_domain_size(chunk_index); let chunk = &mut self.chunks[chunk_index]; match *chunk { - Zeros(_) => false, - Ones(chunk_domain_size) => { + Zeros => false, + Ones => { if chunk_domain_size > 1 { #[cfg(feature = "nightly")] let mut words = { @@ -722,13 +726,13 @@ impl<T: Idx> ChunkedBitSet<T> { ); let (word_index, mask) = chunk_word_index_and_mask(elem); words_ref[word_index] &= !mask; - *chunk = Mixed(chunk_domain_size, chunk_domain_size - 1, words); + *chunk = Mixed(chunk_domain_size - 1, words); } else { - *chunk = Zeros(chunk_domain_size); + *chunk = Zeros; } true } - Mixed(chunk_domain_size, ref mut count, ref mut words) => { + Mixed(ref mut count, ref mut words) => { // We skip all the work if the bit is already clear. let (word_index, mask) = chunk_word_index_and_mask(elem); if (words[word_index] & mask) != 0 { @@ -737,7 +741,7 @@ impl<T: Idx> ChunkedBitSet<T> { let words = Rc::make_mut(words); words[word_index] &= !mask; } else { - *chunk = Zeros(chunk_domain_size); + *chunk = Zeros } true } else { @@ -748,11 +752,12 @@ impl<T: Idx> ChunkedBitSet<T> { } fn chunk_iter(&self, chunk_index: usize) -> ChunkIter<'_> { + let chunk_domain_size = self.chunk_domain_size(chunk_index); match self.chunks.get(chunk_index) { - Some(Zeros(_chunk_domain_size)) => ChunkIter::Zeros, - Some(Ones(chunk_domain_size)) => ChunkIter::Ones(0..*chunk_domain_size as usize), - Some(Mixed(chunk_domain_size, _, words)) => { - let num_words = num_words(*chunk_domain_size as usize); + Some(Zeros) => ChunkIter::Zeros, + Some(Ones) => ChunkIter::Ones(0..chunk_domain_size as usize), + Some(Mixed(_, words)) => { + let num_words = num_words(chunk_domain_size as usize); ChunkIter::Mixed(BitIter::new(&words[0..num_words])) } None => ChunkIter::Finished, @@ -765,23 +770,33 @@ impl<T: Idx> ChunkedBitSet<T> { impl<T: Idx> BitRelations<ChunkedBitSet<T>> for ChunkedBitSet<T> { fn union(&mut self, other: &ChunkedBitSet<T>) -> bool { assert_eq!(self.domain_size, other.domain_size); - debug_assert_eq!(self.chunks.len(), other.chunks.len()); + + let num_chunks = self.chunks.len(); + debug_assert_eq!(num_chunks, other.chunks.len()); + + let last_chunk_size = self.last_chunk_size(); + debug_assert_eq!(last_chunk_size, other.last_chunk_size()); let mut changed = false; - for (mut self_chunk, other_chunk) in self.chunks.iter_mut().zip(other.chunks.iter()) { + for (chunk_index, (mut self_chunk, other_chunk)) in + self.chunks.iter_mut().zip(other.chunks.iter()).enumerate() + { + let chunk_domain_size = if chunk_index + 1 == num_chunks { + last_chunk_size + } else { + CHUNK_BITS as ChunkSize + }; + match (&mut self_chunk, &other_chunk) { - (_, Zeros(_)) | (Ones(_), _) => {} - (Zeros(self_chunk_domain_size), Ones(other_chunk_domain_size)) - | (Mixed(self_chunk_domain_size, ..), Ones(other_chunk_domain_size)) - | (Zeros(self_chunk_domain_size), Mixed(other_chunk_domain_size, ..)) => { + (_, Zeros) | (Ones, _) => {} + (Zeros, Ones) | (Mixed(..), Ones) | (Zeros, Mixed(..)) => { // `other_chunk` fully overwrites `self_chunk` - debug_assert_eq!(self_chunk_domain_size, other_chunk_domain_size); *self_chunk = other_chunk.clone(); changed = true; } ( - Mixed(self_chunk_domain_size, self_chunk_count, self_chunk_words), - Mixed(_other_chunk_domain_size, _other_chunk_count, other_chunk_words), + Mixed(self_chunk_count, self_chunk_words), + Mixed(_other_chunk_count, other_chunk_words), ) => { // First check if the operation would change // `self_chunk.words`. If not, we can avoid allocating some @@ -789,7 +804,7 @@ impl<T: Idx> BitRelations<ChunkedBitSet<T>> for ChunkedBitSet<T> { // performance win. Also, we only need to operate on the // in-use words, hence the slicing. let op = |a, b| a | b; - let num_words = num_words(*self_chunk_domain_size as usize); + let num_words = num_words(chunk_domain_size as usize); if bitwise_changes( &self_chunk_words[0..num_words], &other_chunk_words[0..num_words], @@ -806,8 +821,8 @@ impl<T: Idx> BitRelations<ChunkedBitSet<T>> for ChunkedBitSet<T> { .iter() .map(|w| w.count_ones() as ChunkSize) .sum(); - if *self_chunk_count == *self_chunk_domain_size { - *self_chunk = Ones(*self_chunk_domain_size); + if *self_chunk_count == chunk_domain_size { + *self_chunk = Ones; } changed = true; } @@ -819,36 +834,41 @@ impl<T: Idx> BitRelations<ChunkedBitSet<T>> for ChunkedBitSet<T> { fn subtract(&mut self, other: &ChunkedBitSet<T>) -> bool { assert_eq!(self.domain_size, other.domain_size); - debug_assert_eq!(self.chunks.len(), other.chunks.len()); + + let num_chunks = self.chunks.len(); + debug_assert_eq!(num_chunks, other.chunks.len()); + + let last_chunk_size = self.last_chunk_size(); + debug_assert_eq!(last_chunk_size, other.last_chunk_size()); let mut changed = false; - for (mut self_chunk, other_chunk) in self.chunks.iter_mut().zip(other.chunks.iter()) { + for (chunk_index, (mut self_chunk, other_chunk)) in + self.chunks.iter_mut().zip(other.chunks.iter()).enumerate() + { + let chunk_domain_size = if chunk_index + 1 == num_chunks { + last_chunk_size + } else { + CHUNK_BITS as ChunkSize + }; + match (&mut self_chunk, &other_chunk) { - (Zeros(..), _) | (_, Zeros(..)) => {} - ( - Ones(self_chunk_domain_size) | Mixed(self_chunk_domain_size, _, _), - Ones(other_chunk_domain_size), - ) => { - debug_assert_eq!(self_chunk_domain_size, other_chunk_domain_size); + (Zeros, _) | (_, Zeros) => {} + (Ones | Mixed(_, _), Ones) => { changed = true; - *self_chunk = Zeros(*self_chunk_domain_size); + *self_chunk = Zeros; } - ( - Ones(self_chunk_domain_size), - Mixed(other_chunk_domain_size, other_chunk_count, other_chunk_words), - ) => { - debug_assert_eq!(self_chunk_domain_size, other_chunk_domain_size); + (Ones, Mixed(other_chunk_count, other_chunk_words)) => { changed = true; - let num_words = num_words(*self_chunk_domain_size as usize); + let num_words = num_words(chunk_domain_size as usize); debug_assert!(num_words > 0 && num_words <= CHUNK_WORDS); let mut tail_mask = - 1 << (*other_chunk_domain_size - ((num_words - 1) * WORD_BITS) as u16) - 1; + 1 << (chunk_domain_size - ((num_words - 1) * WORD_BITS) as u16) - 1; let mut self_chunk_words = **other_chunk_words; for word in self_chunk_words[0..num_words].iter_mut().rev() { *word = !*word & tail_mask; tail_mask = u64::MAX; } - let self_chunk_count = *self_chunk_domain_size - *other_chunk_count; + let self_chunk_count = chunk_domain_size - *other_chunk_count; debug_assert_eq!( self_chunk_count, self_chunk_words[0..num_words] @@ -856,16 +876,15 @@ impl<T: Idx> BitRelations<ChunkedBitSet<T>> for ChunkedBitSet<T> { .map(|w| w.count_ones() as ChunkSize) .sum() ); - *self_chunk = - Mixed(*self_chunk_domain_size, self_chunk_count, Rc::new(self_chunk_words)); + *self_chunk = Mixed(self_chunk_count, Rc::new(self_chunk_words)); } ( - Mixed(self_chunk_domain_size, self_chunk_count, self_chunk_words), - Mixed(_other_chunk_domain_size, _other_chunk_count, other_chunk_words), + Mixed(self_chunk_count, self_chunk_words), + Mixed(_other_chunk_count, other_chunk_words), ) => { // See [`<Self as BitRelations<ChunkedBitSet<T>>>::union`] for the explanation let op = |a: u64, b: u64| a & !b; - let num_words = num_words(*self_chunk_domain_size as usize); + let num_words = num_words(chunk_domain_size as usize); if bitwise_changes( &self_chunk_words[0..num_words], &other_chunk_words[0..num_words], @@ -883,7 +902,7 @@ impl<T: Idx> BitRelations<ChunkedBitSet<T>> for ChunkedBitSet<T> { .map(|w| w.count_ones() as ChunkSize) .sum(); if *self_chunk_count == 0 { - *self_chunk = Zeros(*self_chunk_domain_size); + *self_chunk = Zeros; } changed = true; } @@ -895,28 +914,36 @@ impl<T: Idx> BitRelations<ChunkedBitSet<T>> for ChunkedBitSet<T> { fn intersect(&mut self, other: &ChunkedBitSet<T>) -> bool { assert_eq!(self.domain_size, other.domain_size); - debug_assert_eq!(self.chunks.len(), other.chunks.len()); + + let num_chunks = self.chunks.len(); + debug_assert_eq!(num_chunks, other.chunks.len()); + + let last_chunk_size = self.last_chunk_size(); + debug_assert_eq!(last_chunk_size, other.last_chunk_size()); let mut changed = false; - for (mut self_chunk, other_chunk) in self.chunks.iter_mut().zip(other.chunks.iter()) { + for (chunk_index, (mut self_chunk, other_chunk)) in + self.chunks.iter_mut().zip(other.chunks.iter()).enumerate() + { + let chunk_domain_size = if chunk_index + 1 == num_chunks { + last_chunk_size + } else { + CHUNK_BITS as ChunkSize + }; + match (&mut self_chunk, &other_chunk) { - (Zeros(..), _) | (_, Ones(..)) => {} - ( - Ones(self_chunk_domain_size), - Zeros(other_chunk_domain_size) | Mixed(other_chunk_domain_size, ..), - ) - | (Mixed(self_chunk_domain_size, ..), Zeros(other_chunk_domain_size)) => { - debug_assert_eq!(self_chunk_domain_size, other_chunk_domain_size); + (Zeros, _) | (_, Ones) => {} + (Ones, Zeros | Mixed(..)) | (Mixed(..), Zeros) => { changed = true; *self_chunk = other_chunk.clone(); } ( - Mixed(self_chunk_domain_size, self_chunk_count, self_chunk_words), - Mixed(_other_chunk_domain_size, _other_chunk_count, other_chunk_words), + Mixed(self_chunk_count, self_chunk_words), + Mixed(_other_chunk_count, other_chunk_words), ) => { // See [`<Self as BitRelations<ChunkedBitSet<T>>>::union`] for the explanation let op = |a, b| a & b; - let num_words = num_words(*self_chunk_domain_size as usize); + let num_words = num_words(chunk_domain_size as usize); if bitwise_changes( &self_chunk_words[0..num_words], &other_chunk_words[0..num_words], @@ -934,7 +961,7 @@ impl<T: Idx> BitRelations<ChunkedBitSet<T>> for ChunkedBitSet<T> { .map(|w| w.count_ones() as ChunkSize) .sum(); if *self_chunk_count == 0 { - *self_chunk = Zeros(*self_chunk_domain_size); + *self_chunk = Zeros; } changed = true; } @@ -964,7 +991,7 @@ impl<T: Idx> BitRelations<ChunkedBitSet<T>> for DenseBitSet<T> { words = &mut words[..CHUNK_WORDS]; } match chunk { - Zeros(..) => { + Zeros => { for word in words { if *word != 0 { changed = true; @@ -972,8 +999,8 @@ impl<T: Idx> BitRelations<ChunkedBitSet<T>> for DenseBitSet<T> { } } } - Ones(..) => (), - Mixed(_, _, data) => { + Ones => (), + Mixed(_, data) => { for (i, word) in words.iter_mut().enumerate() { let new_val = *word & data[i]; if new_val != *word { @@ -1053,13 +1080,11 @@ impl<'a, T: Idx> Iterator for ChunkedBitIter<'a, T> { impl Chunk { #[cfg(test)] - fn assert_valid(&self) { + fn assert_valid(&self, chunk_domain_size: ChunkSize) { + assert!(chunk_domain_size as usize <= CHUNK_BITS); match *self { - Zeros(chunk_domain_size) | Ones(chunk_domain_size) => { - assert!(chunk_domain_size as usize <= CHUNK_BITS); - } - Mixed(chunk_domain_size, count, ref words) => { - assert!(chunk_domain_size as usize <= CHUNK_BITS); + Zeros | Ones => {} + Mixed(count, ref words) => { assert!(0 < count && count < chunk_domain_size); // Check the number of set bits matches `count`. @@ -1083,18 +1108,12 @@ impl Chunk { } } - fn new(chunk_domain_size: usize, is_empty: bool) -> Self { - debug_assert!(0 < chunk_domain_size && chunk_domain_size <= CHUNK_BITS); - let chunk_domain_size = chunk_domain_size as ChunkSize; - if is_empty { Zeros(chunk_domain_size) } else { Ones(chunk_domain_size) } - } - /// Count the number of 1s in the chunk. - fn count(&self) -> usize { + fn count(&self, chunk_domain_size: ChunkSize) -> usize { match *self { - Zeros(_) => 0, - Ones(chunk_domain_size) => chunk_domain_size as usize, - Mixed(_, count, _) => count as usize, + Zeros => 0, + Ones => chunk_domain_size as usize, + Mixed(count, _) => count as usize, } } } diff --git a/compiler/rustc_index/src/bit_set/tests.rs b/compiler/rustc_index/src/bit_set/tests.rs index 9ce4cf4293f..deddc872614 100644 --- a/compiler/rustc_index/src/bit_set/tests.rs +++ b/compiler/rustc_index/src/bit_set/tests.rs @@ -120,8 +120,9 @@ fn chunked_bitset() { let mut b1 = ChunkedBitSet::<usize>::new_empty(1); assert_eq!( b1, - ChunkedBitSet { domain_size: 1, chunks: Box::new([Zeros(1)]), marker: PhantomData } + ChunkedBitSet { domain_size: 1, chunks: Box::new([Zeros]), marker: PhantomData } ); + assert_eq!(b1.chunk_domain_size(0), 1); b1.assert_valid(); assert!(!b1.contains(0)); @@ -129,12 +130,12 @@ fn chunked_bitset() { assert!(b1.insert(0)); assert!(b1.contains(0)); assert_eq!(b1.count(), 1); - assert_eq!(b1.chunks(), [Ones(1)]); + assert_eq!(b1.chunks(), [Ones]); assert!(!b1.insert(0)); assert!(b1.remove(0)); assert!(!b1.contains(0)); assert_eq!(b1.count(), 0); - assert_eq!(b1.chunks(), [Zeros(1)]); + assert_eq!(b1.chunks(), [Zeros]); b1.assert_valid(); //----------------------------------------------------------------------- @@ -142,8 +143,9 @@ fn chunked_bitset() { let mut b100 = ChunkedBitSet::<usize>::new_filled(100); assert_eq!( b100, - ChunkedBitSet { domain_size: 100, chunks: Box::new([Ones(100)]), marker: PhantomData } + ChunkedBitSet { domain_size: 100, chunks: Box::new([Ones]), marker: PhantomData } ); + assert_eq!(b100.chunk_domain_size(0), 100); b100.assert_valid(); for i in 0..100 { @@ -152,7 +154,7 @@ fn chunked_bitset() { assert_eq!(b100.count(), 100); assert!(b100.remove(3)); assert!(b100.insert(3)); - assert_eq!(b100.chunks(), vec![Ones(100)]); + assert_eq!(b100.chunks(), vec![Ones]); assert!( b100.remove(20) && b100.remove(30) && b100.remove(40) && b100.remove(99) && b100.insert(30) ); @@ -161,7 +163,6 @@ fn chunked_bitset() { assert_eq!( b100.chunks(), vec![Mixed( - 100, 97, #[rustfmt::skip] Rc::new([ @@ -180,7 +181,7 @@ fn chunked_bitset() { } } assert_eq!(num_removed, 97); - assert_eq!(b100.chunks(), vec![Zeros(100)]); + assert_eq!(b100.chunks(), vec![Zeros]); b100.assert_valid(); //----------------------------------------------------------------------- @@ -188,23 +189,21 @@ fn chunked_bitset() { let mut b2548 = ChunkedBitSet::<usize>::new_empty(2548); assert_eq!( b2548, - ChunkedBitSet { - domain_size: 2548, - chunks: Box::new([Zeros(2048), Zeros(500)]), - marker: PhantomData, - } + ChunkedBitSet { domain_size: 2548, chunks: Box::new([Zeros, Zeros]), marker: PhantomData } ); + assert_eq!(b2548.chunk_domain_size(0), 2048); + assert_eq!(b2548.chunk_domain_size(1), 500); b2548.assert_valid(); b2548.insert(14); b2548.remove(14); - assert_eq!(b2548.chunks(), vec![Zeros(2048), Zeros(500)]); + assert_eq!(b2548.chunks(), vec![Zeros, Zeros]); b2548.insert_all(); for i in 0..2548 { assert!(b2548.contains(i)); } assert_eq!(b2548.count(), 2548); - assert_eq!(b2548.chunks(), vec![Ones(2048), Ones(500)]); + assert_eq!(b2548.chunks(), vec![Ones, Ones]); b2548.assert_valid(); //----------------------------------------------------------------------- @@ -212,12 +211,10 @@ fn chunked_bitset() { let mut b4096 = ChunkedBitSet::<usize>::new_empty(4096); assert_eq!( b4096, - ChunkedBitSet { - domain_size: 4096, - chunks: Box::new([Zeros(2048), Zeros(2048)]), - marker: PhantomData, - } + ChunkedBitSet { domain_size: 4096, chunks: Box::new([Zeros, Zeros]), marker: PhantomData } ); + assert_eq!(b4096.chunk_domain_size(0), 2048); + assert_eq!(b4096.chunk_domain_size(1), 2048); b4096.assert_valid(); for i in 0..4096 { @@ -231,11 +228,11 @@ fn chunked_bitset() { b4096.chunks(), #[rustfmt::skip] vec![ - Mixed(2048, 1, Rc::new([ + Mixed(1, Rc::new([ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ])), - Mixed(2048, 1, Rc::new([ + Mixed(1, Rc::new([ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x8000_0000_0000_0000 ])), @@ -251,10 +248,15 @@ fn chunked_bitset() { b10000, ChunkedBitSet { domain_size: 10000, - chunks: Box::new([Zeros(2048), Zeros(2048), Zeros(2048), Zeros(2048), Zeros(1808),]), + chunks: Box::new([Zeros, Zeros, Zeros, Zeros, Zeros,]), marker: PhantomData, } ); + assert_eq!(b10000.chunk_domain_size(0), 2048); + assert_eq!(b10000.chunk_domain_size(1), 2048); + assert_eq!(b10000.chunk_domain_size(2), 2048); + assert_eq!(b10000.chunk_domain_size(3), 2048); + assert_eq!(b10000.chunk_domain_size(4), 1808); b10000.assert_valid(); assert!(b10000.insert(3000) && b10000.insert(5000)); @@ -262,17 +264,17 @@ fn chunked_bitset() { b10000.chunks(), #[rustfmt::skip] vec![ - Zeros(2048), - Mixed(2048, 1, Rc::new([ + Zeros, + Mixed(1, Rc::new([ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x0100_0000_0000_0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ])), - Mixed(2048, 1, Rc::new([ + Mixed(1, Rc::new([ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x0100, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ])), - Zeros(2048), - Zeros(1808), + Zeros, + Zeros, ], ); let mut b10000b = ChunkedBitSet::<usize>::new_empty(10000); diff --git a/compiler/rustc_infer/src/infer/context.rs b/compiler/rustc_infer/src/infer/context.rs index 21e999b080d..bb9c8850093 100644 --- a/compiler/rustc_infer/src/infer/context.rs +++ b/compiler/rustc_infer/src/infer/context.rs @@ -22,10 +22,6 @@ impl<'tcx> rustc_type_ir::InferCtxtLike for InferCtxt<'tcx> { self.next_trait_solver } - fn in_hir_typeck(&self) -> bool { - self.in_hir_typeck - } - fn typing_mode(&self) -> ty::TypingMode<'tcx> { self.typing_mode() } diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs index 82d4856df39..d1507f08c06 100644 --- a/compiler/rustc_infer/src/infer/mod.rs +++ b/compiler/rustc_infer/src/infer/mod.rs @@ -158,7 +158,8 @@ pub struct InferCtxtInner<'tcx> { region_assumptions: Vec<ty::ArgOutlivesPredicate<'tcx>>, /// `-Znext-solver`: Successfully proven goals during HIR typeck which - /// reference inference variables and get reproven after writeback. + /// reference inference variables and get reproven in case MIR type check + /// fails to prove something. /// /// See the documentation of `InferCtxt::in_hir_typeck` for more details. hir_typeck_potentially_region_dependent_goals: Vec<PredicateObligation<'tcx>>, @@ -782,22 +783,30 @@ impl<'tcx> InferCtxt<'tcx> { self.inner.borrow_mut().type_variables().num_vars() } - pub fn next_ty_var(&self, span: Span) -> Ty<'tcx> { - self.next_ty_var_with_origin(TypeVariableOrigin { span, param_def_id: None }) + pub fn next_ty_vid(&self, span: Span) -> TyVid { + self.next_ty_vid_with_origin(TypeVariableOrigin { span, param_def_id: None }) } - pub fn next_ty_var_with_origin(&self, origin: TypeVariableOrigin) -> Ty<'tcx> { - let vid = self.inner.borrow_mut().type_variables().new_var(self.universe(), origin); - Ty::new_var(self.tcx, vid) + pub fn next_ty_vid_with_origin(&self, origin: TypeVariableOrigin) -> TyVid { + self.inner.borrow_mut().type_variables().new_var(self.universe(), origin) } - pub fn next_ty_var_id_in_universe(&self, span: Span, universe: ty::UniverseIndex) -> TyVid { + pub fn next_ty_vid_in_universe(&self, span: Span, universe: ty::UniverseIndex) -> TyVid { let origin = TypeVariableOrigin { span, param_def_id: None }; self.inner.borrow_mut().type_variables().new_var(universe, origin) } + pub fn next_ty_var(&self, span: Span) -> Ty<'tcx> { + self.next_ty_var_with_origin(TypeVariableOrigin { span, param_def_id: None }) + } + + pub fn next_ty_var_with_origin(&self, origin: TypeVariableOrigin) -> Ty<'tcx> { + let vid = self.next_ty_vid_with_origin(origin); + Ty::new_var(self.tcx, vid) + } + pub fn next_ty_var_in_universe(&self, span: Span, universe: ty::UniverseIndex) -> Ty<'tcx> { - let vid = self.next_ty_var_id_in_universe(span, universe); + let vid = self.next_ty_vid_in_universe(span, universe); Ty::new_var(self.tcx, vid) } diff --git a/compiler/rustc_interface/src/interface.rs b/compiler/rustc_interface/src/interface.rs index c46e879b976..8f131f45bbd 100644 --- a/compiler/rustc_interface/src/interface.rs +++ b/compiler/rustc_interface/src/interface.rs @@ -285,7 +285,9 @@ pub(crate) fn parse_check_cfg(dcx: DiagCtxtHandle<'_>, specs: Vec<String>) -> Ch .expecteds .entry(name.name) .and_modify(|v| match v { - ExpectedValues::Some(v) if !values_any_specified => { + ExpectedValues::Some(v) if !values_any_specified => + { + #[allow(rustc::potential_query_instability)] v.extend(values.clone()) } ExpectedValues::Some(_) => *v = ExpectedValues::Any, diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs index 3ba224723e3..bc5ef04079e 100644 --- a/compiler/rustc_interface/src/passes.rs +++ b/compiler/rustc_interface/src/passes.rs @@ -6,6 +6,7 @@ use std::sync::{Arc, LazyLock, OnceLock}; use std::{env, fs, iter}; use rustc_ast as ast; +use rustc_attr_parsing::{AttributeParser, ShouldEmit, validate_attr}; use rustc_codegen_ssa::traits::CodegenBackend; use rustc_data_structures::jobserver::Proxy; use rustc_data_structures::steal::Steal; @@ -15,6 +16,7 @@ use rustc_errors::timings::TimingSection; use rustc_expand::base::{ExtCtxt, LintStoreExpand}; use rustc_feature::Features; use rustc_fs_util::try_canonicalize; +use rustc_hir::attrs::AttributeKind; use rustc_hir::def_id::{LOCAL_CRATE, StableCrateId, StableCrateIdMap}; use rustc_hir::definitions::Definitions; use rustc_incremental::setup_dep_graph; @@ -25,9 +27,7 @@ use rustc_middle::arena::Arena; use rustc_middle::dep_graph::DepsType; use rustc_middle::ty::{self, CurrentGcx, GlobalCtxt, RegisteredTools, TyCtxt}; use rustc_middle::util::Providers; -use rustc_parse::{ - new_parser_from_file, new_parser_from_source_str, unwrap_or_emit_fatal, validate_attr, -}; +use rustc_parse::{new_parser_from_file, new_parser_from_source_str, unwrap_or_emit_fatal}; use rustc_passes::{abi_test, input_stats, layout_test}; use rustc_resolve::{Resolver, ResolverOutputs}; use rustc_session::config::{CrateType, Input, OutFileName, OutputFilenames, OutputType}; @@ -1081,7 +1081,8 @@ fn run_required_analyses(tcx: TyCtxt<'_>) { if !tcx.is_typeck_child(def_id.to_def_id()) { // Child unsafety and borrowck happens together with the parent tcx.ensure_ok().check_unsafety(def_id); - tcx.ensure_ok().mir_borrowck(def_id) + tcx.ensure_ok().mir_borrowck(def_id); + tcx.ensure_ok().check_transmutes(def_id); } tcx.ensure_ok().has_ffi_unwind_calls(def_id); @@ -1244,8 +1245,7 @@ pub fn get_crate_name(sess: &Session, krate_attrs: &[ast::Attribute]) -> Symbol // in all code paths that require the crate name very early on, namely before // macro expansion. - let attr_crate_name = - validate_and_find_value_str_builtin_attr(sym::crate_name, sess, krate_attrs); + let attr_crate_name = parse_crate_name(sess, krate_attrs, ShouldEmit::EarlyFatal); let validate = |name, span| { rustc_session::output::validate_crate_name(sess, name, span); @@ -1283,6 +1283,28 @@ pub fn get_crate_name(sess: &Session, krate_attrs: &[ast::Attribute]) -> Symbol sym::rust_out } +pub(crate) fn parse_crate_name( + sess: &Session, + attrs: &[ast::Attribute], + emit_errors: ShouldEmit, +) -> Option<(Symbol, Span)> { + let rustc_hir::Attribute::Parsed(AttributeKind::CrateName { name, name_span, .. }) = + AttributeParser::parse_limited_should_emit( + sess, + &attrs, + sym::crate_name, + DUMMY_SP, + rustc_ast::node_id::CRATE_NODE_ID, + None, + emit_errors, + )? + else { + unreachable!("crate_name is the only attr we could've parsed here"); + }; + + Some((name, name_span)) +} + fn get_recursion_limit(krate_attrs: &[ast::Attribute], sess: &Session) -> Limit { // We don't permit macro calls inside of the attribute (e.g., #![recursion_limit = `expand!()`]) // because that would require expanding this while in the middle of expansion, which needs to diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs index 0a764808f95..4425877308a 100644 --- a/compiler/rustc_interface/src/tests.rs +++ b/compiler/rustc_interface/src/tests.rs @@ -807,6 +807,7 @@ fn test_unstable_options_tracking_hash() { tracked!(hint_mostly_unused, true); tracked!(human_readable_cgu_names, true); tracked!(incremental_ignore_spans, true); + tracked!(indirect_branch_cs_prefix, true); tracked!(inline_mir, Some(true)); tracked!(inline_mir_hint_threshold, Some(123)); tracked!(inline_mir_threshold, Some(123)); diff --git a/compiler/rustc_interface/src/util.rs b/compiler/rustc_interface/src/util.rs index 0ca4fcc66ca..04006f3e446 100644 --- a/compiler/rustc_interface/src/util.rs +++ b/compiler/rustc_interface/src/util.rs @@ -5,14 +5,15 @@ use std::sync::{Arc, OnceLock}; use std::{env, thread}; use rustc_ast as ast; +use rustc_attr_parsing::{ShouldEmit, validate_attr}; use rustc_codegen_ssa::traits::CodegenBackend; use rustc_data_structures::jobserver::Proxy; use rustc_data_structures::sync; +use rustc_errors::LintBuffer; use rustc_metadata::{DylibError, load_symbol_from_dylib}; use rustc_middle::ty::CurrentGcx; -use rustc_parse::validate_attr; use rustc_session::config::{Cfg, OutFileName, OutputFilenames, OutputTypes, Sysroot, host_tuple}; -use rustc_session::lint::{self, BuiltinLintDiag, LintBuffer}; +use rustc_session::lint::{self, BuiltinLintDiag}; use rustc_session::output::{CRATE_TYPES, categorize_crate_type}; use rustc_session::{EarlyDiagCtxt, Session, filesearch}; use rustc_span::edit_distance::find_best_match_for_name; @@ -23,6 +24,7 @@ use rustc_target::spec::Target; use tracing::info; use crate::errors; +use crate::passes::parse_crate_name; /// Function pointer type that constructs a new CodegenBackend. type MakeBackendFn = fn() -> Box<dyn CodegenBackend>; @@ -519,11 +521,10 @@ pub fn build_output_filenames(attrs: &[ast::Attribute], sess: &Session) -> Outpu sess.dcx().emit_fatal(errors::MultipleOutputTypesToStdout); } - let crate_name = sess - .opts - .crate_name - .clone() - .or_else(|| rustc_attr_parsing::find_crate_name(attrs).map(|n| n.to_string())); + let crate_name = + sess.opts.crate_name.clone().or_else(|| { + parse_crate_name(sess, attrs, ShouldEmit::Nothing).map(|i| i.0.to_string()) + }); match sess.io.output_file { None => { diff --git a/compiler/rustc_lexer/src/lib.rs b/compiler/rustc_lexer/src/lib.rs index e80196ed567..483cc3e93dc 100644 --- a/compiler/rustc_lexer/src/lib.rs +++ b/compiler/rustc_lexer/src/lib.rs @@ -540,11 +540,11 @@ impl Cursor<'_> { // whitespace between the opening and the infostring. self.eat_while(|ch| ch != '\n' && is_whitespace(ch)); - // copied from `eat_identifier`, but allows `.` in infostring to allow something like + // copied from `eat_identifier`, but allows `-` and `.` in infostring to allow something like // `---Cargo.toml` as a valid opener if is_id_start(self.first()) { self.bump(); - self.eat_while(|c| is_id_continue(c) || c == '.'); + self.eat_while(|c| is_id_continue(c) || c == '-' || c == '.'); } self.eat_while(|ch| ch != '\n' && is_whitespace(ch)); diff --git a/compiler/rustc_lint/messages.ftl b/compiler/rustc_lint/messages.ftl index c485e6fc849..417e5a97069 100644 --- a/compiler/rustc_lint/messages.ftl +++ b/compiler/rustc_lint/messages.ftl @@ -205,8 +205,6 @@ lint_confusable_identifier_pair = found both `{$existing_sym}` and `{$sym}` as i .current_use = this identifier can be confused with `{$existing_sym}` .other_use = other identifier used here -lint_custom_inner_attribute_unstable = custom inner attributes are unstable - lint_dangling_pointers_from_locals = a dangling pointer will be produced because the local variable `{$local_var_name}` will be dropped .ret_ty = return type of the {$fn_kind} is `{$ret_ty}` .local_var = `{$local_var_name}` is part the {$fn_kind} and will be dropped at the end of the {$fn_kind} @@ -271,10 +269,6 @@ lint_expectation = this lint expectation is unfulfilled lint_extern_crate_not_idiomatic = `extern crate` is not idiomatic in the new edition .suggestion = convert it to a `use` -lint_extern_without_abi = `extern` declarations without an explicit ABI are deprecated - .label = ABI should be specified here - .suggestion = explicitly specify the {$default_abi} ABI - lint_for_loops_over_fallibles = for loop over {$article} `{$ref_prefix}{$ty}`. This is more readably written as an `if let` statement .suggestion = consider using `if let` to clear intent @@ -294,19 +288,6 @@ lint_hidden_glob_reexport = private item shadows public glob re-export lint_hidden_lifetime_parameters = hidden lifetime parameters in types are deprecated -lint_hidden_unicode_codepoints = unicode codepoint changing visible direction of text present in {$label} - .label = this {$label} contains {$count -> - [one] an invisible - *[other] invisible - } unicode text flow control {$count -> - [one] codepoint - *[other] codepoints - } - .note = these kind of unicode codepoints change the way text flows on applications that support them, but can cause confusion because they change the order of characters on the screen - .suggestion_remove = if their presence wasn't intentional, you can remove them - .suggestion_escape = if you want to keep them but make them visible in your source code, you can escape them - .no_suggestion_note_escape = if you want to keep them but make them visible in your source code, you can escape them: {$escaped} - lint_identifier_non_ascii_char = identifier contains non-ASCII characters lint_identifier_uncommon_codepoints = identifier contains {$codepoints_len -> @@ -431,8 +412,6 @@ lint_improper_ctypes_union_non_exhaustive = this union is non-exhaustive lint_incomplete_include = include macro expected single expression in source -lint_inner_macro_attribute_unstable = inner macro attributes are unstable - lint_invalid_asm_label_binary = avoid using labels containing only the digits `0` and `1` in inline assembly .label = use a different label that doesn't start with `0` or `1` .help = start numbering with `2` instead @@ -483,6 +462,14 @@ lint_invalid_reference_casting_note_book = for more information, visit <https:// lint_invalid_reference_casting_note_ty_has_interior_mutability = even for types with interior mutability, the only legal way to obtain a mutable pointer from a shared reference is through `UnsafeCell::get` +lint_int_to_ptr_transmutes = transmuting an integer to a pointer creates a pointer without provenance + .note = this is dangerous because dereferencing the resulting pointer is undefined behavior + .note_exposed_provenance = exposed provenance semantics can be used to create a pointer based on some previously exposed provenance + .help_transmute = for more information about transmute, see <https://doc.rust-lang.org/std/mem/fn.transmute.html#transmutation-between-pointers-and-integers> + .help_exposed_provenance = for more information about exposed provenance, see <https://doc.rust-lang.org/std/ptr/index.html#exposed-provenance> + .suggestion_with_exposed_provenance = use `std::ptr::with_exposed_provenance{$suffix}` instead to use a previously exposed provenance + .suggestion_without_provenance_mut = if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` + lint_legacy_derive_helpers = derive helper attribute is used before it is introduced .label = the attribute is introduced here @@ -732,7 +719,7 @@ lint_pattern_in_foreign = patterns aren't allowed in foreign function declaratio lint_private_extern_crate_reexport = extern crate `{$ident}` is private and cannot be re-exported .suggestion = consider making the `extern crate` item publicly accessible -lint_proc_macro_derive_resolution_fallback = cannot find {$ns} `{$ident}` in this scope +lint_proc_macro_derive_resolution_fallback = cannot find {$ns_descr} `{$ident}` in this scope .label = names from parent modules are not accessible without an explicit import lint_query_instability = using `{$query}` can result in unstable query results @@ -870,10 +857,6 @@ lint_undropped_manually_drops = calls to `std::mem::drop` with `std::mem::Manual .label = argument has type `{$arg_ty}` .suggestion = use `std::mem::ManuallyDrop::into_inner` to get the inner value -lint_unexpected_builtin_cfg = unexpected `--cfg {$cfg}` flag - .controlled_by = config `{$cfg_name}` is only supposed to be controlled by `{$controlled_by}` - .incoherent = manually setting a built-in cfg can and does create incoherent behaviors - lint_unexpected_cfg_add_build_rs_println = or consider adding `{$build_rs_println}` to the top of the `build.rs` lint_unexpected_cfg_add_cargo_feature = consider using a Cargo feature instead lint_unexpected_cfg_add_cargo_toml_lint_cfg = or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:{$cargo_toml_lint_cfg} diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs index 8006cfcf30f..c3c0a34df71 100644 --- a/compiler/rustc_lint/src/builtin.rs +++ b/compiler/rustc_lint/src/builtin.rs @@ -3097,7 +3097,7 @@ impl EarlyLintPass for SpecialModuleName { if let ast::ItemKind::Mod( _, ident, - ast::ModKind::Unloaded | ast::ModKind::Loaded(_, ast::Inline::No, _, _), + ast::ModKind::Unloaded | ast::ModKind::Loaded(_, ast::Inline::No { .. }, _), ) = item.kind { if item.attrs.iter().any(|a| a.has_name(sym::path)) { diff --git a/compiler/rustc_lint/src/context.rs b/compiler/rustc_lint/src/context.rs index cb159a0b914..0669da1a025 100644 --- a/compiler/rustc_lint/src/context.rs +++ b/compiler/rustc_lint/src/context.rs @@ -11,7 +11,7 @@ use rustc_ast::util::parser::ExprPrecedence; use rustc_data_structures::fx::FxIndexMap; use rustc_data_structures::sync; use rustc_data_structures::unord::UnordMap; -use rustc_errors::{Diag, LintDiagnostic, MultiSpan}; +use rustc_errors::{Diag, LintBuffer, LintDiagnostic, MultiSpan}; use rustc_feature::Features; use rustc_hir::def::Res; use rustc_hir::def_id::{CrateNum, DefId}; @@ -23,8 +23,8 @@ use rustc_middle::middle::privacy::EffectiveVisibilities; use rustc_middle::ty::layout::{LayoutError, LayoutOfHelpers, TyAndLayout}; use rustc_middle::ty::print::{PrintError, PrintTraitRefExt as _, Printer, with_no_trimmed_paths}; use rustc_middle::ty::{self, GenericArg, RegisteredTools, Ty, TyCtxt, TypingEnv, TypingMode}; -use rustc_session::lint::{FutureIncompatibleInfo, Lint, LintBuffer, LintExpectationId, LintId}; -use rustc_session::{LintStoreMarker, Session}; +use rustc_session::lint::{FutureIncompatibleInfo, Lint, LintExpectationId, LintId}; +use rustc_session::{DynLintStore, Session}; use rustc_span::edit_distance::find_best_match_for_names; use rustc_span::{Ident, Span, Symbol, sym}; use tracing::debug; @@ -62,7 +62,13 @@ pub struct LintStore { lint_groups: FxIndexMap<&'static str, LintGroup>, } -impl LintStoreMarker for LintStore {} +impl DynLintStore for LintStore { + fn lint_groups_iter(&self) -> Box<dyn Iterator<Item = rustc_session::LintGroup> + '_> { + Box::new(self.get_lint_groups().map(|(name, lints, is_externally_loaded)| { + rustc_session::LintGroup { name, lints, is_externally_loaded } + })) + } +} /// The target of the `by_name` map, which accounts for renaming/deprecation. #[derive(Debug)] diff --git a/compiler/rustc_lint/src/early.rs b/compiler/rustc_lint/src/early.rs index 58205087def..dff1fc43670 100644 --- a/compiler/rustc_lint/src/early.rs +++ b/compiler/rustc_lint/src/early.rs @@ -7,10 +7,11 @@ use rustc_ast::visit::{self as ast_visit, Visitor, walk_list}; use rustc_ast::{self as ast, HasAttrs}; use rustc_data_structures::stack::ensure_sufficient_stack; +use rustc_errors::{BufferedEarlyLint, DecorateDiagCompat, LintBuffer}; use rustc_feature::Features; use rustc_middle::ty::{RegisteredTools, TyCtxt}; use rustc_session::Session; -use rustc_session::lint::{BufferedEarlyLint, LintBuffer, LintPass}; +use rustc_session::lint::LintPass; use rustc_span::{Ident, Span}; use tracing::debug; @@ -36,8 +37,11 @@ impl<'ecx, 'tcx, T: EarlyLintPass> EarlyContextAndPass<'ecx, 'tcx, T> { fn check_id(&mut self, id: ast::NodeId) { for early_lint in self.context.buffered.take(id) { let BufferedEarlyLint { span, node_id: _, lint_id, diagnostic } = early_lint; - self.context.opt_span_lint(lint_id.lint, span, |diag| { - diagnostics::decorate_builtin_lint(self.context.sess(), self.tcx, diagnostic, diag); + self.context.opt_span_lint(lint_id.lint, span, |diag| match diagnostic { + DecorateDiagCompat::Builtin(b) => { + diagnostics::decorate_builtin_lint(self.context.sess(), self.tcx, b, diag); + } + DecorateDiagCompat::Dynamic(d) => d.decorate_lint_box(diag), }); } } diff --git a/compiler/rustc_lint/src/early/diagnostics.rs b/compiler/rustc_lint/src/early/diagnostics.rs index 678d3d1f8ed..7300490b838 100644 --- a/compiler/rustc_lint/src/early/diagnostics.rs +++ b/compiler/rustc_lint/src/early/diagnostics.rs @@ -64,10 +64,12 @@ pub fn decorate_builtin_lint( } .decorate_lint(diag); } - BuiltinLintDiag::ProcMacroDeriveResolutionFallback { span: macro_span, ns, ident } => { - lints::ProcMacroDeriveResolutionFallback { span: macro_span, ns, ident } - .decorate_lint(diag) - } + BuiltinLintDiag::ProcMacroDeriveResolutionFallback { + span: macro_span, + ns_descr, + ident, + } => lints::ProcMacroDeriveResolutionFallback { span: macro_span, ns_descr, ident } + .decorate_lint(diag), BuiltinLintDiag::MacroExpandedMacroExportsAccessedByAbsolutePaths(span_def) => { lints::MacroExpandedMacroExportsAccessedByAbsolutePaths { definition: span_def } .decorate_lint(diag) @@ -156,9 +158,6 @@ pub fn decorate_builtin_lint( } .decorate_lint(diag); } - BuiltinLintDiag::MissingAbi(label_span, default_abi) => { - lints::MissingAbi { span: label_span, default_abi }.decorate_lint(diag); - } BuiltinLintDiag::LegacyDeriveHelpers(label_span) => { lints::LegacyDeriveHelpers { span: label_span }.decorate_lint(diag); } @@ -184,27 +183,6 @@ pub fn decorate_builtin_lint( lints::ReservedMultihash { suggestion }.decorate_lint(diag); } } - BuiltinLintDiag::HiddenUnicodeCodepoints { - label, - count, - span_label, - labels, - escape, - spans, - } => { - lints::HiddenUnicodeCodepointsDiag { - label: &label, - count, - span_label, - labels: labels.map(|spans| lints::HiddenUnicodeCodepointsDiagLabels { spans }), - sub: if escape { - lints::HiddenUnicodeCodepointsDiagSub::Escape { spans } - } else { - lints::HiddenUnicodeCodepointsDiagSub::NoEscape { spans } - }, - } - .decorate_lint(diag); - } BuiltinLintDiag::UnusedBuiltinAttribute { attr_name, macro_name, @@ -464,17 +442,8 @@ pub fn decorate_builtin_lint( } .decorate_lint(diag) } - BuiltinLintDiag::InnerAttributeUnstable { is_macro } => if is_macro { - lints::InnerAttributeUnstable::InnerMacroAttribute - } else { - lints::InnerAttributeUnstable::CustomInnerAttribute - } - .decorate_lint(diag), BuiltinLintDiag::OutOfScopeMacroCalls { span, path, location } => { lints::OutOfScopeMacroCalls { span, path, location }.decorate_lint(diag) } - BuiltinLintDiag::UnexpectedBuiltinCfg { cfg, cfg_name, controlled_by } => { - lints::UnexpectedBuiltinCfg { cfg, cfg_name, controlled_by }.decorate_lint(diag) - } } } diff --git a/compiler/rustc_lint/src/foreign_modules.rs b/compiler/rustc_lint/src/foreign_modules.rs index 759e6c927b8..3267e70f1de 100644 --- a/compiler/rustc_lint/src/foreign_modules.rs +++ b/compiler/rustc_lint/src/foreign_modules.rs @@ -179,7 +179,7 @@ impl ClashingExternDeclarations { /// symbol's name. fn name_of_extern_decl(tcx: TyCtxt<'_>, fi: hir::OwnerId) -> SymbolName { if let Some((overridden_link_name, overridden_link_name_span)) = - tcx.codegen_fn_attrs(fi).link_name.map(|overridden_link_name| { + tcx.codegen_fn_attrs(fi).symbol_name.map(|overridden_link_name| { // FIXME: Instead of searching through the attributes again to get span // information, we could have codegen_fn_attrs also give span information back for // where the attribute was defined. However, until this is found to be a diff --git a/compiler/rustc_lint/src/internal.rs b/compiler/rustc_lint/src/internal.rs index 016ff17f5d7..929fc8207b0 100644 --- a/compiler/rustc_lint/src/internal.rs +++ b/compiler/rustc_lint/src/internal.rs @@ -1,10 +1,10 @@ //! Some lints that are only useful in the compiler or crates that use compiler internals, such as //! Clippy. -use rustc_hir::HirId; use rustc_hir::def::Res; use rustc_hir::def_id::DefId; -use rustc_middle::ty::{self, GenericArgsRef, Ty as MiddleTy}; +use rustc_hir::{Expr, ExprKind, HirId}; +use rustc_middle::ty::{self, GenericArgsRef, PredicatePolarity, Ty}; use rustc_session::{declare_lint_pass, declare_tool_lint}; use rustc_span::hygiene::{ExpnKind, MacroKind}; use rustc_span::{Span, sym}; @@ -56,25 +56,6 @@ impl LateLintPass<'_> for DefaultHashTypes { } } -/// Helper function for lints that check for expressions with calls and use typeck results to -/// get the `DefId` and `GenericArgsRef` of the function. -fn typeck_results_of_method_fn<'tcx>( - cx: &LateContext<'tcx>, - expr: &hir::Expr<'_>, -) -> Option<(Span, DefId, ty::GenericArgsRef<'tcx>)> { - match expr.kind { - hir::ExprKind::MethodCall(segment, ..) - if let Some(def_id) = cx.typeck_results().type_dependent_def_id(expr.hir_id) => - { - Some((segment.ident.span, def_id, cx.typeck_results().node_args(expr.hir_id))) - } - _ => match cx.typeck_results().node_type(expr.hir_id).kind() { - &ty::FnDef(def_id, args) => Some((expr.span, def_id, args)), - _ => None, - }, - } -} - declare_tool_lint! { /// The `potential_query_instability` lint detects use of methods which can lead to /// potential query instability, such as iterating over a `HashMap`. @@ -101,10 +82,12 @@ declare_tool_lint! { declare_lint_pass!(QueryStability => [POTENTIAL_QUERY_INSTABILITY, UNTRACKED_QUERY_INFORMATION]); -impl LateLintPass<'_> for QueryStability { - fn check_expr(&mut self, cx: &LateContext<'_>, expr: &hir::Expr<'_>) { - let Some((span, def_id, args)) = typeck_results_of_method_fn(cx, expr) else { return }; - if let Ok(Some(instance)) = ty::Instance::try_resolve(cx.tcx, cx.typing_env(), def_id, args) +impl<'tcx> LateLintPass<'tcx> for QueryStability { + fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>) { + if let Some((callee_def_id, span, generic_args, _recv, _args)) = + get_callee_span_generic_args_and_args(cx, expr) + && let Ok(Some(instance)) = + ty::Instance::try_resolve(cx.tcx, cx.typing_env(), callee_def_id, generic_args) { let def_id = instance.def_id(); if cx.tcx.has_attr(def_id, sym::rustc_lint_query_instability) { @@ -113,7 +96,15 @@ impl LateLintPass<'_> for QueryStability { span, QueryInstability { query: cx.tcx.item_name(def_id) }, ); + } else if has_unstable_into_iter_predicate(cx, callee_def_id, generic_args) { + let call_span = span.with_hi(expr.span.hi()); + cx.emit_span_lint( + POTENTIAL_QUERY_INSTABILITY, + call_span, + QueryInstability { query: sym::into_iter }, + ); } + if cx.tcx.has_attr(def_id, sym::rustc_lint_untracked_query_information) { cx.emit_span_lint( UNTRACKED_QUERY_INFORMATION, @@ -125,6 +116,69 @@ impl LateLintPass<'_> for QueryStability { } } +fn has_unstable_into_iter_predicate<'tcx>( + cx: &LateContext<'tcx>, + callee_def_id: DefId, + generic_args: GenericArgsRef<'tcx>, +) -> bool { + let Some(into_iterator_def_id) = cx.tcx.get_diagnostic_item(sym::IntoIterator) else { + return false; + }; + let Some(into_iter_fn_def_id) = cx.tcx.lang_items().into_iter_fn() else { + return false; + }; + let predicates = cx.tcx.predicates_of(callee_def_id).instantiate(cx.tcx, generic_args); + for (predicate, _) in predicates { + let Some(trait_pred) = predicate.as_trait_clause() else { + continue; + }; + if trait_pred.def_id() != into_iterator_def_id + || trait_pred.polarity() != PredicatePolarity::Positive + { + continue; + } + // `IntoIterator::into_iter` has no additional method args. + let into_iter_fn_args = + cx.tcx.instantiate_bound_regions_with_erased(trait_pred).trait_ref.args; + let Ok(Some(instance)) = ty::Instance::try_resolve( + cx.tcx, + cx.typing_env(), + into_iter_fn_def_id, + into_iter_fn_args, + ) else { + continue; + }; + // Does the input type's `IntoIterator` implementation have the + // `rustc_lint_query_instability` attribute on its `into_iter` method? + if cx.tcx.has_attr(instance.def_id(), sym::rustc_lint_query_instability) { + return true; + } + } + false +} + +/// Checks whether an expression is a function or method call and, if so, returns its `DefId`, +/// `Span`, `GenericArgs`, and arguments. This is a slight augmentation of a similarly named Clippy +/// function, `get_callee_generic_args_and_args`. +fn get_callee_span_generic_args_and_args<'tcx>( + cx: &LateContext<'tcx>, + expr: &'tcx Expr<'tcx>, +) -> Option<(DefId, Span, GenericArgsRef<'tcx>, Option<&'tcx Expr<'tcx>>, &'tcx [Expr<'tcx>])> { + if let ExprKind::Call(callee, args) = expr.kind + && let callee_ty = cx.typeck_results().expr_ty(callee) + && let ty::FnDef(callee_def_id, generic_args) = callee_ty.kind() + { + return Some((*callee_def_id, callee.span, generic_args, None, args)); + } + if let ExprKind::MethodCall(segment, recv, args, _) = expr.kind + && let Some(method_def_id) = cx.typeck_results().type_dependent_def_id(expr.hir_id) + { + let generic_args = cx.typeck_results().node_args(expr.hir_id); + return Some((method_def_id, segment.ident.span, generic_args, Some(recv), args)); + } + None +} + declare_tool_lint! { /// The `usage_of_ty_tykind` lint detects usages of `ty::TyKind::<kind>`, /// where `ty::<kind>` would suffice. @@ -461,33 +515,22 @@ declare_tool_lint! { declare_lint_pass!(Diagnostics => [UNTRANSLATABLE_DIAGNOSTIC, DIAGNOSTIC_OUTSIDE_OF_IMPL]); impl LateLintPass<'_> for Diagnostics { - fn check_expr(&mut self, cx: &LateContext<'_>, expr: &hir::Expr<'_>) { + fn check_expr<'tcx>(&mut self, cx: &LateContext<'tcx>, expr: &'tcx hir::Expr<'tcx>) { let collect_args_tys_and_spans = |args: &[hir::Expr<'_>], reserve_one_extra: bool| { let mut result = Vec::with_capacity(args.len() + usize::from(reserve_one_extra)); result.extend(args.iter().map(|arg| (cx.typeck_results().expr_ty(arg), arg.span))); result }; // Only check function calls and method calls. - let (span, def_id, fn_gen_args, arg_tys_and_spans) = match expr.kind { - hir::ExprKind::Call(callee, args) => { - match cx.typeck_results().node_type(callee.hir_id).kind() { - &ty::FnDef(def_id, fn_gen_args) => { - (callee.span, def_id, fn_gen_args, collect_args_tys_and_spans(args, false)) - } - _ => return, // occurs for fns passed as args - } - } - hir::ExprKind::MethodCall(_segment, _recv, args, _span) => { - let Some((span, def_id, fn_gen_args)) = typeck_results_of_method_fn(cx, expr) - else { - return; - }; - let mut args = collect_args_tys_and_spans(args, true); - args.insert(0, (cx.tcx.types.self_param, _recv.span)); // dummy inserted for `self` - (span, def_id, fn_gen_args, args) - } - _ => return, + let Some((def_id, span, fn_gen_args, recv, args)) = + get_callee_span_generic_args_and_args(cx, expr) + else { + return; }; + let mut arg_tys_and_spans = collect_args_tys_and_spans(args, recv.is_some()); + if let Some(recv) = recv { + arg_tys_and_spans.insert(0, (cx.tcx.types.self_param, recv.span)); // dummy inserted for `self` + } Self::diagnostic_outside_of_impl(cx, span, expr.hir_id, def_id, fn_gen_args); Self::untranslatable_diagnostic(cx, def_id, &arg_tys_and_spans); @@ -496,7 +539,7 @@ impl LateLintPass<'_> for Diagnostics { impl Diagnostics { // Is the type `{D,Subd}iagMessage`? - fn is_diag_message<'cx>(cx: &LateContext<'cx>, ty: MiddleTy<'cx>) -> bool { + fn is_diag_message<'cx>(cx: &LateContext<'cx>, ty: Ty<'cx>) -> bool { if let Some(adt_def) = ty.ty_adt_def() && let Some(name) = cx.tcx.get_diagnostic_name(adt_def.did()) && matches!(name, sym::DiagMessage | sym::SubdiagMessage) @@ -510,7 +553,7 @@ impl Diagnostics { fn untranslatable_diagnostic<'cx>( cx: &LateContext<'cx>, def_id: DefId, - arg_tys_and_spans: &[(MiddleTy<'cx>, Span)], + arg_tys_and_spans: &[(Ty<'cx>, Span)], ) { let fn_sig = cx.tcx.fn_sig(def_id).instantiate_identity().skip_binder(); let predicates = cx.tcx.predicates_of(def_id).instantiate_identity(cx.tcx).predicates; diff --git a/compiler/rustc_lint/src/lib.rs b/compiler/rustc_lint/src/lib.rs index f06757b3c23..bdbac7fc4d1 100644 --- a/compiler/rustc_lint/src/lib.rs +++ b/compiler/rustc_lint/src/lib.rs @@ -133,10 +133,9 @@ pub use early::{EarlyCheckNode, check_ast_node}; pub use late::{check_crate, late_lint_mod, unerased_lint_store}; pub use levels::LintLevelsBuilder; pub use passes::{EarlyLintPass, LateLintPass}; +pub use rustc_errors::BufferedEarlyLint; pub use rustc_session::lint::Level::{self, *}; -pub use rustc_session::lint::{ - BufferedEarlyLint, FutureIncompatibleInfo, Lint, LintId, LintPass, LintVec, -}; +pub use rustc_session::lint::{FutureIncompatibleInfo, Lint, LintId, LintPass, LintVec}; rustc_fluent_macro::fluent_messages! { "../messages.ftl" } diff --git a/compiler/rustc_lint/src/lifetime_syntax.rs b/compiler/rustc_lint/src/lifetime_syntax.rs index 464f4fc34b9..413525eb6e5 100644 --- a/compiler/rustc_lint/src/lifetime_syntax.rs +++ b/compiler/rustc_lint/src/lifetime_syntax.rs @@ -214,9 +214,9 @@ impl<T> LifetimeSyntaxCategories<Vec<T>> { } } - pub fn flatten(&self) -> impl Iterator<Item = &T> { - let Self { hidden, elided, named } = self; - [hidden.iter(), elided.iter(), named.iter()].into_iter().flatten() + pub fn iter_unnamed(&self) -> impl Iterator<Item = &T> { + let Self { hidden, elided, named: _ } = self; + [hidden.iter(), elided.iter()].into_iter().flatten() } } @@ -495,7 +495,7 @@ fn emit_mismatch_diagnostic<'tcx>( cx.emit_span_lint( MISMATCHED_LIFETIME_SYNTAXES, - inputs.flatten().copied().collect::<Vec<_>>(), + inputs.iter_unnamed().chain(outputs.iter_unnamed()).copied().collect::<Vec<_>>(), lints::MismatchedLifetimeSyntaxes { inputs, outputs, suggestions }, ); } diff --git a/compiler/rustc_lint/src/lints.rs b/compiler/rustc_lint/src/lints.rs index a6d59af6900..426500dda4a 100644 --- a/compiler/rustc_lint/src/lints.rs +++ b/compiler/rustc_lint/src/lints.rs @@ -1,14 +1,14 @@ +// ignore-tidy-filelength + #![allow(rustc::untranslatable_diagnostic)] use std::num::NonZero; -use rustc_abi::ExternAbi; use rustc_errors::codes::*; use rustc_errors::{ Applicability, Diag, DiagArgValue, DiagMessage, DiagStyledString, ElidedLifetimeInPathSubdiag, EmissionGuarantee, LintDiagnostic, MultiSpan, Subdiagnostic, SuggestionStyle, }; use rustc_hir as hir; -use rustc_hir::def::Namespace; use rustc_hir::def_id::DefId; use rustc_hir::intravisit::VisitorExt; use rustc_macros::{LintDiagnostic, Subdiagnostic}; @@ -817,80 +817,6 @@ pub(crate) enum InvalidReferenceCastingDiag<'tcx> { }, } -// hidden_unicode_codepoints.rs -#[derive(LintDiagnostic)] -#[diag(lint_hidden_unicode_codepoints)] -#[note] -pub(crate) struct HiddenUnicodeCodepointsDiag<'a> { - pub label: &'a str, - pub count: usize, - #[label] - pub span_label: Span, - #[subdiagnostic] - pub labels: Option<HiddenUnicodeCodepointsDiagLabels>, - #[subdiagnostic] - pub sub: HiddenUnicodeCodepointsDiagSub, -} - -pub(crate) struct HiddenUnicodeCodepointsDiagLabels { - pub spans: Vec<(char, Span)>, -} - -impl Subdiagnostic for HiddenUnicodeCodepointsDiagLabels { - fn add_to_diag<G: EmissionGuarantee>(self, diag: &mut Diag<'_, G>) { - for (c, span) in self.spans { - diag.span_label(span, format!("{c:?}")); - } - } -} - -pub(crate) enum HiddenUnicodeCodepointsDiagSub { - Escape { spans: Vec<(char, Span)> }, - NoEscape { spans: Vec<(char, Span)> }, -} - -// Used because of multiple multipart_suggestion and note -impl Subdiagnostic for HiddenUnicodeCodepointsDiagSub { - fn add_to_diag<G: EmissionGuarantee>(self, diag: &mut Diag<'_, G>) { - match self { - HiddenUnicodeCodepointsDiagSub::Escape { spans } => { - diag.multipart_suggestion_with_style( - fluent::lint_suggestion_remove, - spans.iter().map(|(_, span)| (*span, "".to_string())).collect(), - Applicability::MachineApplicable, - SuggestionStyle::HideCodeAlways, - ); - diag.multipart_suggestion( - fluent::lint_suggestion_escape, - spans - .into_iter() - .map(|(c, span)| { - let c = format!("{c:?}"); - (span, c[1..c.len() - 1].to_string()) - }) - .collect(), - Applicability::MachineApplicable, - ); - } - HiddenUnicodeCodepointsDiagSub::NoEscape { spans } => { - // FIXME: in other suggestions we've reversed the inner spans of doc comments. We - // should do the same here to provide the same good suggestions as we do for - // literals above. - diag.arg( - "escaped", - spans - .into_iter() - .map(|(c, _)| format!("{c:?}")) - .collect::<Vec<String>>() - .join(", "), - ); - diag.note(fluent::lint_suggestion_remove); - diag.note(fluent::lint_no_suggestion_note_escape); - } - } - } -} - // map_unit_fn.rs #[derive(LintDiagnostic)] #[diag(lint_map_unit_fn)] @@ -1618,6 +1544,48 @@ impl<'a> LintDiagnostic<'a, ()> for DropGlue<'_> { } } +// transmute.rs +#[derive(LintDiagnostic)] +#[diag(lint_int_to_ptr_transmutes)] +#[note] +#[note(lint_note_exposed_provenance)] +#[help(lint_suggestion_without_provenance_mut)] +#[help(lint_help_transmute)] +#[help(lint_help_exposed_provenance)] +pub(crate) struct IntegerToPtrTransmutes<'tcx> { + #[subdiagnostic] + pub suggestion: IntegerToPtrTransmutesSuggestion<'tcx>, +} + +#[derive(Subdiagnostic)] +pub(crate) enum IntegerToPtrTransmutesSuggestion<'tcx> { + #[multipart_suggestion( + lint_suggestion_with_exposed_provenance, + applicability = "machine-applicable", + style = "verbose" + )] + ToPtr { + dst: Ty<'tcx>, + suffix: &'static str, + #[suggestion_part(code = "std::ptr::with_exposed_provenance{suffix}::<{dst}>(")] + start_call: Span, + }, + #[multipart_suggestion( + lint_suggestion_with_exposed_provenance, + applicability = "machine-applicable", + style = "verbose" + )] + ToRef { + dst: Ty<'tcx>, + suffix: &'static str, + ref_mutbl: &'static str, + #[suggestion_part( + code = "&{ref_mutbl}*std::ptr::with_exposed_provenance{suffix}::<{dst}>(" + )] + start_call: Span, + }, +} + // types.rs #[derive(LintDiagnostic)] #[diag(lint_range_endpoint_out_of_range)] @@ -2568,16 +2536,6 @@ pub(crate) mod unexpected_cfg_value { } #[derive(LintDiagnostic)] -#[diag(lint_unexpected_builtin_cfg)] -#[note(lint_controlled_by)] -#[note(lint_incoherent)] -pub(crate) struct UnexpectedBuiltinCfg { - pub(crate) cfg: String, - pub(crate) cfg_name: Symbol, - pub(crate) controlled_by: &'static str, -} - -#[derive(LintDiagnostic)] #[diag(lint_macro_use_deprecated)] #[help] pub(crate) struct MacroUseDeprecated; @@ -2691,14 +2649,6 @@ pub(crate) struct IllFormedAttributeInput { } #[derive(LintDiagnostic)] -pub(crate) enum InnerAttributeUnstable { - #[diag(lint_inner_macro_attribute_unstable)] - InnerMacroAttribute, - #[diag(lint_custom_inner_attribute_unstable)] - CustomInnerAttribute, -} - -#[derive(LintDiagnostic)] #[diag(lint_unknown_diagnostic_attribute)] pub(crate) struct UnknownDiagnosticAttribute { #[subdiagnostic] @@ -2769,7 +2719,7 @@ pub(crate) struct AbsPathWithModuleSugg { pub(crate) struct ProcMacroDeriveResolutionFallback { #[label] pub span: Span, - pub ns: Namespace, + pub ns_descr: &'static str, pub ident: Ident, } @@ -2891,14 +2841,6 @@ pub(crate) struct PatternsInFnsWithoutBodySub { } #[derive(LintDiagnostic)] -#[diag(lint_extern_without_abi)] -pub(crate) struct MissingAbi { - #[suggestion(code = "extern {default_abi}", applicability = "machine-applicable")] - pub span: Span, - pub default_abi: ExternAbi, -} - -#[derive(LintDiagnostic)] #[diag(lint_legacy_derive_helpers)] pub(crate) struct LegacyDeriveHelpers { #[label] diff --git a/compiler/rustc_lint/src/nonstandard_style.rs b/compiler/rustc_lint/src/nonstandard_style.rs index 8fafaa33d0c..65075cfecfa 100644 --- a/compiler/rustc_lint/src/nonstandard_style.rs +++ b/compiler/rustc_lint/src/nonstandard_style.rs @@ -5,7 +5,7 @@ use rustc_hir::attrs::{AttributeKind, ReprAttr}; use rustc_hir::def::{DefKind, Res}; use rustc_hir::def_id::DefId; use rustc_hir::intravisit::{FnKind, Visitor}; -use rustc_hir::{AttrArgs, AttrItem, Attribute, GenericParamKind, PatExprKind, PatKind, find_attr}; +use rustc_hir::{Attribute, GenericParamKind, PatExprKind, PatKind, find_attr}; use rustc_middle::hir::nested_filter::All; use rustc_middle::ty; use rustc_session::config::CrateType; @@ -343,35 +343,27 @@ impl<'tcx> LateLintPass<'tcx> for NonSnakeCase { let crate_ident = if let Some(name) = &cx.tcx.sess.opts.crate_name { Some(Ident::from_str(name)) } else { - ast::attr::find_by_name(cx.tcx.hir_attrs(hir::CRATE_HIR_ID), sym::crate_name).and_then( - |attr| { - if let Attribute::Unparsed(n) = attr - && let AttrItem { args: AttrArgs::Eq { eq_span: _, expr: lit }, .. } = - n.as_ref() - && let ast::LitKind::Str(name, ..) = lit.kind - { - // Discard the double quotes surrounding the literal. - let sp = cx - .sess() - .source_map() - .span_to_snippet(lit.span) - .ok() - .and_then(|snippet| { - let left = snippet.find('"')?; - let right = snippet.rfind('"').map(|pos| snippet.len() - pos)?; - - Some( - lit.span - .with_lo(lit.span.lo() + BytePos(left as u32 + 1)) - .with_hi(lit.span.hi() - BytePos(right as u32)), - ) - }) - .unwrap_or(lit.span); - - Some(Ident::new(name, sp)) - } else { - None - } + find_attr!(cx.tcx.hir_attrs(hir::CRATE_HIR_ID), AttributeKind::CrateName{name, name_span,..} => (name, name_span)).map( + |(&name, &span)| { + // Discard the double quotes surrounding the literal. + let sp = cx + .sess() + .source_map() + .span_to_snippet(span) + .ok() + .and_then(|snippet| { + let left = snippet.find('"')?; + let right = snippet.rfind('"').map(|pos| snippet.len() - pos)?; + + Some( + span + .with_lo(span.lo() + BytePos(left as u32 + 1)) + .with_hi(span.hi() - BytePos(right as u32)), + ) + }) + .unwrap_or(span); + + Ident::new(name, sp) }, ) }; diff --git a/compiler/rustc_lint/src/transmute.rs b/compiler/rustc_lint/src/transmute.rs index bc1d4587d07..239c8649041 100644 --- a/compiler/rustc_lint/src/transmute.rs +++ b/compiler/rustc_lint/src/transmute.rs @@ -1,3 +1,4 @@ +use rustc_ast::LitKind; use rustc_errors::Applicability; use rustc_hir::def::{DefKind, Res}; use rustc_hir::def_id::LocalDefId; @@ -7,6 +8,7 @@ use rustc_middle::ty::{self, Ty}; use rustc_session::{declare_lint, impl_lint_pass}; use rustc_span::sym; +use crate::lints::{IntegerToPtrTransmutes, IntegerToPtrTransmutesSuggestion}; use crate::{LateContext, LateLintPass}; declare_lint! { @@ -67,9 +69,44 @@ declare_lint! { "detects transmutes that can also be achieved by other operations" } +declare_lint! { + /// The `integer_to_ptr_transmutes` lint detects integer to pointer + /// transmutes where the resulting pointers are undefined behavior to dereference. + /// + /// ### Example + /// + /// ```rust + /// fn foo(a: usize) -> *const u8 { + /// unsafe { + /// std::mem::transmute::<usize, *const u8>(a) + /// } + /// } + /// ``` + /// + /// {{produces}} + /// + /// ### Explanation + /// + /// Any attempt to use the resulting pointers are undefined behavior as the resulting + /// pointers won't have any provenance. + /// + /// Alternatively, [`std::ptr::with_exposed_provenance`] should be used, as they do not + /// carry the provenance requirement. If wanting to create pointers without provenance + /// [`std::ptr::without_provenance`] should be used instead. + /// + /// See [`std::mem::transmute`] in the reference for more details. + /// + /// [`std::mem::transmute`]: https://doc.rust-lang.org/std/mem/fn.transmute.html + /// [`std::ptr::with_exposed_provenance`]: https://doc.rust-lang.org/std/ptr/fn.with_exposed_provenance.html + /// [`std::ptr::without_provenance`]: https://doc.rust-lang.org/std/ptr/fn.without_provenance.html + pub INTEGER_TO_PTR_TRANSMUTES, + Warn, + "detects integer to pointer transmutes", +} + pub(crate) struct CheckTransmutes; -impl_lint_pass!(CheckTransmutes => [PTR_TO_INTEGER_TRANSMUTE_IN_CONSTS, UNNECESSARY_TRANSMUTES]); +impl_lint_pass!(CheckTransmutes => [PTR_TO_INTEGER_TRANSMUTE_IN_CONSTS, UNNECESSARY_TRANSMUTES, INTEGER_TO_PTR_TRANSMUTES]); impl<'tcx> LateLintPass<'tcx> for CheckTransmutes { fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx hir::Expr<'tcx>) { @@ -94,9 +131,62 @@ impl<'tcx> LateLintPass<'tcx> for CheckTransmutes { check_ptr_transmute_in_const(cx, expr, body_owner_def_id, const_context, src, dst); check_unnecessary_transmute(cx, expr, callee, arg, const_context, src, dst); + check_int_to_ptr_transmute(cx, expr, arg, src, dst); } } +/// Check for transmutes from integer to pointers (*const/*mut and &/&mut). +/// +/// Using the resulting pointers would be undefined behavior. +fn check_int_to_ptr_transmute<'tcx>( + cx: &LateContext<'tcx>, + expr: &'tcx hir::Expr<'tcx>, + arg: &'tcx hir::Expr<'tcx>, + src: Ty<'tcx>, + dst: Ty<'tcx>, +) { + if !matches!(src.kind(), ty::Uint(_) | ty::Int(_)) { + return; + } + let (ty::Ref(_, inner_ty, mutbl) | ty::RawPtr(inner_ty, mutbl)) = dst.kind() else { + return; + }; + // bail-out if the argument is literal 0 as we have other lints for those cases + if matches!(arg.kind, hir::ExprKind::Lit(hir::Lit { node: LitKind::Int(v, _), .. }) if v == 0) { + return; + } + // bail-out if the inner type is a ZST + let Ok(layout_inner_ty) = cx.tcx.layout_of(cx.typing_env().as_query_input(*inner_ty)) else { + return; + }; + if layout_inner_ty.is_1zst() { + return; + } + + let suffix = if mutbl.is_mut() { "_mut" } else { "" }; + cx.tcx.emit_node_span_lint( + INTEGER_TO_PTR_TRANSMUTES, + expr.hir_id, + expr.span, + IntegerToPtrTransmutes { + suggestion: if dst.is_ref() { + IntegerToPtrTransmutesSuggestion::ToRef { + dst: *inner_ty, + suffix, + ref_mutbl: mutbl.prefix_str(), + start_call: expr.span.shrink_to_lo().until(arg.span), + } + } else { + IntegerToPtrTransmutesSuggestion::ToPtr { + dst: *inner_ty, + suffix, + start_call: expr.span.shrink_to_lo().until(arg.span), + } + }, + }, + ); +} + /// Check for transmutes that exhibit undefined behavior. /// For example, transmuting pointers to integers in a const context. /// diff --git a/compiler/rustc_lint_defs/Cargo.toml b/compiler/rustc_lint_defs/Cargo.toml index 9ab350daf69..c8201d5ea8c 100644 --- a/compiler/rustc_lint_defs/Cargo.toml +++ b/compiler/rustc_lint_defs/Cargo.toml @@ -5,11 +5,10 @@ edition = "2024" [dependencies] # tidy-alphabetical-start -rustc_abi = { path = "../rustc_abi" } rustc_ast = { path = "../rustc_ast" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_error_messages = { path = "../rustc_error_messages" } -rustc_hir = { path = "../rustc_hir" } +rustc_hir_id = { path = "../rustc_hir_id" } rustc_macros = { path = "../rustc_macros" } rustc_serialize = { path = "../rustc_serialize" } rustc_span = { path = "../rustc_span" } diff --git a/compiler/rustc_lint_defs/src/lib.rs b/compiler/rustc_lint_defs/src/lib.rs index 3bb7bbce567..2e84233e5a5 100644 --- a/compiler/rustc_lint_defs/src/lib.rs +++ b/compiler/rustc_lint_defs/src/lib.rs @@ -1,16 +1,15 @@ -use rustc_abi::ExternAbi; +use std::borrow::Cow; + use rustc_ast::AttrId; use rustc_ast::attr::AttributeExt; -use rustc_ast::node_id::NodeId; -use rustc_data_structures::fx::{FxIndexMap, FxIndexSet}; +use rustc_data_structures::fx::FxIndexSet; use rustc_data_structures::stable_hasher::{ HashStable, StableCompare, StableHasher, ToStableHashKey, }; -use rustc_error_messages::{DiagMessage, MultiSpan}; -use rustc_hir::def::Namespace; -use rustc_hir::def_id::DefPathHash; -use rustc_hir::{HashStableContext, HirId, ItemLocalId}; +use rustc_error_messages::{DiagArgValue, DiagMessage, IntoDiagArg, MultiSpan}; +use rustc_hir_id::{HashStableContext, HirId, ItemLocalId}; use rustc_macros::{Decodable, Encodable, HashStable_Generic}; +use rustc_span::def_id::DefPathHash; pub use rustc_span::edition::Edition; use rustc_span::{Ident, MacroRulesNormalizedIdent, Span, Symbol, sym}; use serde::{Deserialize, Serialize}; @@ -138,7 +137,7 @@ impl LintExpectationId { } } -impl<HCX: rustc_hir::HashStableContext> HashStable<HCX> for LintExpectationId { +impl<HCX: HashStableContext> HashStable<HCX> for LintExpectationId { #[inline] fn hash_stable(&self, hcx: &mut HCX, hasher: &mut StableHasher) { match self { @@ -156,7 +155,7 @@ impl<HCX: rustc_hir::HashStableContext> HashStable<HCX> for LintExpectationId { } } -impl<HCX: rustc_hir::HashStableContext> ToStableHashKey<HCX> for LintExpectationId { +impl<HCX: HashStableContext> ToStableHashKey<HCX> for LintExpectationId { type KeyType = (DefPathHash, ItemLocalId, u16, u16); #[inline] @@ -297,6 +296,12 @@ impl Level { } } +impl IntoDiagArg for Level { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::Borrowed(self.to_cmd_flag())) + } +} + /// Specification of a single lint. #[derive(Copy, Clone, Debug)] pub struct Lint { @@ -617,7 +622,7 @@ pub enum BuiltinLintDiag { AbsPathWithModule(Span), ProcMacroDeriveResolutionFallback { span: Span, - ns: Namespace, + ns_descr: &'static str, ident: Ident, }, MacroExpandedMacroExportsAccessedByAbsolutePaths(Span), @@ -641,7 +646,6 @@ pub enum BuiltinLintDiag { path: String, since_kind: DeprecatedSinceKind, }, - MissingAbi(Span, ExternAbi), UnusedDocComment(Span), UnusedBuiltinAttribute { attr_name: Symbol, @@ -664,14 +668,6 @@ pub enum BuiltinLintDiag { is_string: bool, suggestion: Span, }, - HiddenUnicodeCodepoints { - label: String, - count: usize, - span_label: Span, - labels: Option<Vec<(char, Span)>>, - escape: bool, - spans: Vec<(char, Span)>, - }, TrailingMacro(bool, Ident), BreakWithLabelAndLoop(Span), UnicodeTextFlow(Span, String), @@ -796,68 +792,11 @@ pub enum BuiltinLintDiag { suggestions: Vec<String>, docs: Option<&'static str>, }, - InnerAttributeUnstable { - is_macro: bool, - }, OutOfScopeMacroCalls { span: Span, path: String, location: String, }, - UnexpectedBuiltinCfg { - cfg: String, - cfg_name: Symbol, - controlled_by: &'static str, - }, -} - -/// Lints that are buffered up early on in the `Session` before the -/// `LintLevels` is calculated. -#[derive(Debug)] -pub struct BufferedEarlyLint { - /// The span of code that we are linting on. - pub span: Option<MultiSpan>, - - /// The `NodeId` of the AST node that generated the lint. - pub node_id: NodeId, - - /// A lint Id that can be passed to - /// `rustc_lint::early::EarlyContextAndPass::check_id`. - pub lint_id: LintId, - - /// Customization of the `Diag<'_>` for the lint. - pub diagnostic: BuiltinLintDiag, -} - -#[derive(Default, Debug)] -pub struct LintBuffer { - pub map: FxIndexMap<NodeId, Vec<BufferedEarlyLint>>, -} - -impl LintBuffer { - pub fn add_early_lint(&mut self, early_lint: BufferedEarlyLint) { - self.map.entry(early_lint.node_id).or_default().push(early_lint); - } - - pub fn take(&mut self, id: NodeId) -> Vec<BufferedEarlyLint> { - // FIXME(#120456) - is `swap_remove` correct? - self.map.swap_remove(&id).unwrap_or_default() - } - - pub fn buffer_lint( - &mut self, - lint: &'static Lint, - node_id: NodeId, - span: impl Into<MultiSpan>, - diagnostic: BuiltinLintDiag, - ) { - self.add_early_lint(BufferedEarlyLint { - lint_id: LintId::of(lint), - node_id, - span: Some(span.into()), - diagnostic, - }); - } } pub type RegisteredTools = FxIndexSet<Ident>; diff --git a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp index e4fe1fc2e42..e699e4b9c13 100644 --- a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp +++ b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp @@ -278,6 +278,7 @@ enum class LLVMRustAttributeKind { Writable = 42, DeadOnUnwind = 43, DeadOnReturn = 44, + CapturesReadOnly = 45, }; static Attribute::AttrKind fromRust(LLVMRustAttributeKind Kind) { @@ -376,6 +377,8 @@ static Attribute::AttrKind fromRust(LLVMRustAttributeKind Kind) { #else report_fatal_error("DeadOnReturn attribute requires LLVM 21 or later"); #endif + case LLVMRustAttributeKind::CapturesReadOnly: + report_fatal_error("Should be handled separately"); } report_fatal_error("bad LLVMRustAttributeKind"); } @@ -430,6 +433,11 @@ LLVMRustCreateAttrNoValue(LLVMContextRef C, LLVMRustAttributeKind RustAttr) { if (RustAttr == LLVMRustAttributeKind::NoCapture) { return wrap(Attribute::getWithCaptureInfo(*unwrap(C), CaptureInfo::none())); } + if (RustAttr == LLVMRustAttributeKind::CapturesReadOnly) { + return wrap(Attribute::getWithCaptureInfo( + *unwrap(C), CaptureInfo(CaptureComponents::Address | + CaptureComponents::ReadProvenance))); + } #endif return wrap(Attribute::get(*unwrap(C), fromRust(RustAttr))); } diff --git a/compiler/rustc_macros/src/print_attribute.rs b/compiler/rustc_macros/src/print_attribute.rs index 9023520c750..0114e0dfde0 100644 --- a/compiler/rustc_macros/src/print_attribute.rs +++ b/compiler/rustc_macros/src/print_attribute.rs @@ -4,7 +4,7 @@ use syn::spanned::Spanned; use syn::{Data, Fields, Ident}; use synstructure::Structure; -fn print_fields(name: &Ident, fields: &Fields) -> (TokenStream, TokenStream, TokenStream) { +fn print_fields(name: &Ident, fields: &Fields) -> (TokenStream, TokenStream) { let string_name = name.to_string(); let mut disps = vec![quote! {let mut __printed_anything = false;}]; @@ -43,7 +43,6 @@ fn print_fields(name: &Ident, fields: &Fields) -> (TokenStream, TokenStream, Tok #(#disps)* __p.word("}"); }, - quote! { true }, ) } Fields::Unnamed(fields_unnamed) => { @@ -76,10 +75,9 @@ fn print_fields(name: &Ident, fields: &Fields) -> (TokenStream, TokenStream, Tok #(#disps)* __p.pclose(); }, - quote! { true }, ) } - Fields::Unit => (quote! {}, quote! { __p.word(#string_name) }, quote! { true }), + Fields::Unit => (quote! {}, quote! { __p.word(#string_name) }), } } @@ -89,51 +87,33 @@ pub(crate) fn print_attribute(input: Structure<'_>) -> TokenStream { }; // Must be applied to an enum type. - let (code, printed) = match &input.ast().data { + let code = match &input.ast().data { Data::Enum(e) => { - let (arms, printed) = e + let arms = e .variants .iter() .map(|x| { let ident = &x.ident; - let (pat, code, printed) = print_fields(ident, &x.fields); + let (pat, code) = print_fields(ident, &x.fields); - ( - quote! { - Self::#ident #pat => {#code} - }, - quote! { - Self::#ident #pat => {#printed} - }, - ) + quote! { + Self::#ident #pat => {#code} + } }) - .unzip::<_, _, Vec<_>, Vec<_>>(); + .collect::<Vec<_>>(); - ( - quote! { - match self { - #(#arms)* - } - }, - quote! { - match self { - #(#printed)* - } - }, - ) + quote! { + match self { + #(#arms)* + } + } } Data::Struct(s) => { - let (pat, code, printed) = print_fields(&input.ast().ident, &s.fields); - ( - quote! { - let Self #pat = self; - #code - }, - quote! { - let Self #pat = self; - #printed - }, - ) + let (pat, code) = print_fields(&input.ast().ident, &s.fields); + quote! { + let Self #pat = self; + #code + } } Data::Union(u) => { return span_error(u.union_token.span(), "can't derive PrintAttribute on unions"); @@ -144,7 +124,7 @@ pub(crate) fn print_attribute(input: Structure<'_>) -> TokenStream { input.gen_impl(quote! { #[allow(unused)] gen impl PrintAttribute for @Self { - fn should_render(&self) -> bool { #printed } + fn should_render(&self) -> bool { true } fn print_attribute(&self, __p: &mut rustc_ast_pretty::pp::Printer) { #code } } }) diff --git a/compiler/rustc_metadata/src/native_libs.rs b/compiler/rustc_metadata/src/native_libs.rs index 958e314efab..63f1b51df1c 100644 --- a/compiler/rustc_metadata/src/native_libs.rs +++ b/compiler/rustc_metadata/src/native_libs.rs @@ -701,7 +701,7 @@ impl<'tcx> Collector<'tcx> { .link_ordinal .map_or(import_name_type, |ord| Some(PeImportNameType::Ordinal(ord))); - let name = codegen_fn_attrs.link_name.unwrap_or_else(|| self.tcx.item_name(item)); + let name = codegen_fn_attrs.symbol_name.unwrap_or_else(|| self.tcx.item_name(item)); if self.tcx.sess.target.binary_format == BinaryFormat::Elf { let name = name.as_str(); diff --git a/compiler/rustc_middle/src/lib.rs b/compiler/rustc_middle/src/lib.rs index e5cc23c213d..cf0549fa668 100644 --- a/compiler/rustc_middle/src/lib.rs +++ b/compiler/rustc_middle/src/lib.rs @@ -60,6 +60,7 @@ #![feature(try_trait_v2_residual)] #![feature(try_trait_v2_yeet)] #![feature(type_alias_impl_trait)] +#![feature(unwrap_infallible)] #![feature(yeet_expr)] #![recursion_limit = "256"] // tidy-alphabetical-end diff --git a/compiler/rustc_middle/src/lint.rs b/compiler/rustc_middle/src/lint.rs index 341a735f88f..f70b7b6fad7 100644 --- a/compiler/rustc_middle/src/lint.rs +++ b/compiler/rustc_middle/src/lint.rs @@ -211,11 +211,28 @@ impl LintExpectation { } fn explain_lint_level_source( + sess: &Session, lint: &'static Lint, level: Level, src: LintLevelSource, err: &mut Diag<'_, ()>, ) { + // Find the name of the lint group that contains the given lint. + // Assumes the lint only belongs to one group. + let lint_group_name = |lint| { + let lint_groups_iter = sess.lint_groups_iter(); + let lint_id = LintId::of(lint); + lint_groups_iter + .filter(|lint_group| !lint_group.is_externally_loaded) + .find(|lint_group| { + lint_group + .lints + .iter() + .find(|lint_group_lint| **lint_group_lint == lint_id) + .is_some() + }) + .map(|lint_group| lint_group.name) + }; let name = lint.name_lower(); if let Level::Allow = level { // Do not point at `#[allow(compat_lint)]` as the reason for a compatibility lint @@ -224,7 +241,15 @@ fn explain_lint_level_source( } match src { LintLevelSource::Default => { - err.note_once(format!("`#[{}({})]` on by default", level.as_str(), name)); + let level_str = level.as_str(); + match lint_group_name(lint) { + Some(group_name) => { + err.note_once(format!("`#[{level_str}({name})]` (part of `#[{level_str}({group_name})]`) on by default")); + } + None => { + err.note_once(format!("`#[{level_str}({name})]` on by default")); + } + } } LintLevelSource::CommandLine(lint_flag_val, orig_level) => { let flag = orig_level.to_cmd_flag(); @@ -427,7 +452,7 @@ pub fn lint_level( decorate(&mut err); } - explain_lint_level_source(lint, level, src, &mut err); + explain_lint_level_source(sess, lint, level, src, &mut err); err.emit() } lint_level_impl(sess, lint, level, span, Box::new(decorate)) diff --git a/compiler/rustc_middle/src/middle/codegen_fn_attrs.rs b/compiler/rustc_middle/src/middle/codegen_fn_attrs.rs index da17ac04c76..78cafe8566b 100644 --- a/compiler/rustc_middle/src/middle/codegen_fn_attrs.rs +++ b/compiler/rustc_middle/src/middle/codegen_fn_attrs.rs @@ -35,14 +35,10 @@ pub struct CodegenFnAttrs { pub inline: InlineAttr, /// Parsed representation of the `#[optimize]` attribute pub optimize: OptimizeAttr, - /// The `#[export_name = "..."]` attribute, indicating a custom symbol a - /// function should be exported under - pub export_name: Option<Symbol>, - /// The `#[link_name = "..."]` attribute, indicating a custom symbol an - /// imported function should be imported as. Note that `export_name` - /// probably isn't set when this is set, this is for foreign items while - /// `#[export_name]` is for Rust-defined functions. - pub link_name: Option<Symbol>, + /// The name this function will be imported/exported under. This can be set + /// using the `#[export_name = "..."]` or `#[link_name = "..."]` attribute + /// depending on if this is a function definition or foreign function. + pub symbol_name: Option<Symbol>, /// The `#[link_ordinal = "..."]` attribute, indicating an ordinal an /// imported function has in the dynamic library. Note that this must not /// be set when `link_name` is set. This is for foreign items with the @@ -76,13 +72,23 @@ pub struct CodegenFnAttrs { pub patchable_function_entry: Option<PatchableFunctionEntry>, } +#[derive(Copy, Clone, Debug, TyEncodable, TyDecodable, HashStable, PartialEq, Eq)] +pub enum TargetFeatureKind { + /// The feature is implied by another feature, rather than explicitly added by the + /// `#[target_feature]` attribute + Implied, + /// The feature is added by the regular `target_feature` attribute. + Enabled, + /// The feature is added by the unsafe `force_target_feature` attribute. + Forced, +} + #[derive(Copy, Clone, Debug, TyEncodable, TyDecodable, HashStable)] pub struct TargetFeature { /// The name of the target feature (e.g. "avx") pub name: Symbol, - /// The feature is implied by another feature, rather than explicitly added by the - /// `#[target_feature]` attribute - pub implied: bool, + /// The way this feature was enabled. + pub kind: TargetFeatureKind, } #[derive(Copy, Clone, Debug, TyEncodable, TyDecodable, HashStable)] @@ -167,8 +173,7 @@ impl CodegenFnAttrs { flags: CodegenFnAttrFlags::empty(), inline: InlineAttr::None, optimize: OptimizeAttr::Default, - export_name: None, - link_name: None, + symbol_name: None, link_ordinal: None, target_features: vec![], safe_target_features: false, @@ -196,7 +201,7 @@ impl CodegenFnAttrs { self.flags.contains(CodegenFnAttrFlags::NO_MANGLE) || self.flags.contains(CodegenFnAttrFlags::RUSTC_STD_INTERNAL_SYMBOL) - || self.export_name.is_some() + || self.symbol_name.is_some() || match self.linkage { // These are private, so make sure we don't try to consider // them external. diff --git a/compiler/rustc_middle/src/middle/stability.rs b/compiler/rustc_middle/src/middle/stability.rs index 4a19cf1563c..18520089e3e 100644 --- a/compiler/rustc_middle/src/middle/stability.rs +++ b/compiler/rustc_middle/src/middle/stability.rs @@ -4,7 +4,7 @@ use std::num::NonZero; use rustc_ast::NodeId; -use rustc_errors::{Applicability, Diag, EmissionGuarantee}; +use rustc_errors::{Applicability, Diag, EmissionGuarantee, LintBuffer}; use rustc_feature::GateIssue; use rustc_hir::attrs::{DeprecatedSince, Deprecation}; use rustc_hir::def_id::{DefId, LocalDefId}; @@ -12,7 +12,7 @@ use rustc_hir::{self as hir, ConstStability, DefaultBodyStability, HirId, Stabil use rustc_macros::{Decodable, Encodable, HashStable, Subdiagnostic}; use rustc_session::Session; use rustc_session::lint::builtin::{DEPRECATED, DEPRECATED_IN_FUTURE, SOFT_UNSTABLE}; -use rustc_session::lint::{BuiltinLintDiag, DeprecatedSinceKind, Level, Lint, LintBuffer}; +use rustc_session::lint::{BuiltinLintDiag, DeprecatedSinceKind, Level, Lint}; use rustc_session::parse::feature_err_issue; use rustc_span::{Span, Symbol, sym}; use tracing::debug; diff --git a/compiler/rustc_middle/src/mir/interpret/allocation/provenance_map.rs b/compiler/rustc_middle/src/mir/interpret/allocation/provenance_map.rs index ea8596ea286..dbbd95408c8 100644 --- a/compiler/rustc_middle/src/mir/interpret/allocation/provenance_map.rs +++ b/compiler/rustc_middle/src/mir/interpret/allocation/provenance_map.rs @@ -120,6 +120,17 @@ impl<Prov: Provenance> ProvenanceMap<Prov> { } } + /// Gets the provenances of all bytes (including from pointers) in a range. + pub fn get_range( + &self, + cx: &impl HasDataLayout, + range: AllocRange, + ) -> impl Iterator<Item = Prov> { + let ptr_provs = self.range_ptrs_get(range, cx).iter().map(|(_, p)| *p); + let byte_provs = self.range_bytes_get(range).iter().map(|(_, (p, _))| *p); + ptr_provs.chain(byte_provs) + } + /// Attempt to merge per-byte provenance back into ptr chunks, if the right fragments /// sit next to each other. Return `false` is that is not possible due to partial pointers. pub fn merge_bytes(&mut self, cx: &impl HasDataLayout) -> bool { diff --git a/compiler/rustc_middle/src/mir/mono.rs b/compiler/rustc_middle/src/mir/mono.rs index 0e6f797b1e4..533066bdef9 100644 --- a/compiler/rustc_middle/src/mir/mono.rs +++ b/compiler/rustc_middle/src/mir/mono.rs @@ -548,10 +548,27 @@ impl<'tcx> CodegenUnit<'tcx> { let mut items: Vec<_> = self.items().iter().map(|(&i, &data)| (i, data)).collect(); if !tcx.sess.opts.unstable_opts.codegen_source_order { - // It's already deterministic, so we can just use it. - return items; + // In this case, we do not need to keep the items in any specific order, as the input + // is already deterministic. + // + // However, it seems that moving related things (such as different + // monomorphizations of the same function) close to one another is actually beneficial + // for LLVM performance. + // LLVM will codegen the items in the order we pass them to it, and when it handles + // similar things in succession, it seems that it leads to better cache utilization, + // less branch mispredictions and in general to better performance. + // For example, if we have functions `a`, `c::<u32>`, `b`, `c::<i16>`, `d` and + // `c::<bool>`, it seems that it helps LLVM's performance to codegen the three `c` + // instantiations right after one another, as they will likely reference similar types, + // call similar functions, etc. + // + // See https://github.com/rust-lang/rust/pull/145358 for more details. + // + // Sorting by symbol name should not incur any new non-determinism. + items.sort_by_cached_key(|&(i, _)| i.symbol_name(tcx)); + } else { + items.sort_by_cached_key(|&(i, _)| item_sort_key(tcx, i)); } - items.sort_by_cached_key(|&(i, _)| item_sort_key(tcx, i)); items } diff --git a/compiler/rustc_middle/src/mir/pretty.rs b/compiler/rustc_middle/src/mir/pretty.rs index f2d5b13cbc8..128ae8549f7 100644 --- a/compiler/rustc_middle/src/mir/pretty.rs +++ b/compiler/rustc_middle/src/mir/pretty.rs @@ -929,7 +929,10 @@ impl<'tcx> TerminatorKind<'tcx> { } Yield { value, resume_arg, .. } => write!(fmt, "{resume_arg:?} = yield({value:?})"), Unreachable => write!(fmt, "unreachable"), - Drop { place, .. } => write!(fmt, "drop({place:?})"), + Drop { place, async_fut: None, .. } => write!(fmt, "drop({place:?})"), + Drop { place, async_fut: Some(async_fut), .. } => { + write!(fmt, "async drop({place:?}; poll={async_fut:?})") + } Call { func, args, destination, .. } => { write!(fmt, "{destination:?} = ")?; write!(fmt, "{func:?}(")?; diff --git a/compiler/rustc_middle/src/mir/statement.rs b/compiler/rustc_middle/src/mir/statement.rs index 683d7b48617..6e52bc775ef 100644 --- a/compiler/rustc_middle/src/mir/statement.rs +++ b/compiler/rustc_middle/src/mir/statement.rs @@ -160,7 +160,11 @@ impl<'tcx> PlaceTy<'tcx> { /// Convenience wrapper around `projection_ty_core` for `PlaceElem`, /// where we can just use the `Ty` that is already stored inline on /// field projection elems. - pub fn projection_ty(self, tcx: TyCtxt<'tcx>, elem: PlaceElem<'tcx>) -> PlaceTy<'tcx> { + pub fn projection_ty<V: ::std::fmt::Debug>( + self, + tcx: TyCtxt<'tcx>, + elem: ProjectionElem<V, Ty<'tcx>>, + ) -> PlaceTy<'tcx> { self.projection_ty_core(tcx, &elem, |ty| ty, |_, _, _, ty| ty, |ty| ty) } @@ -290,6 +294,36 @@ impl<V, T> ProjectionElem<V, T> { Self::UnwrapUnsafeBinder(..) => false, } } + + /// Returns the `ProjectionKind` associated to this projection. + pub fn kind(self) -> ProjectionKind { + self.try_map(|_| Some(()), |_| ()).unwrap() + } + + /// Apply functions to types and values in this projection and return the result. + pub fn try_map<V2, T2>( + self, + v: impl FnOnce(V) -> Option<V2>, + t: impl FnOnce(T) -> T2, + ) -> Option<ProjectionElem<V2, T2>> { + Some(match self { + ProjectionElem::Deref => ProjectionElem::Deref, + ProjectionElem::Downcast(name, read_variant) => { + ProjectionElem::Downcast(name, read_variant) + } + ProjectionElem::Field(f, ty) => ProjectionElem::Field(f, t(ty)), + ProjectionElem::ConstantIndex { offset, min_length, from_end } => { + ProjectionElem::ConstantIndex { offset, min_length, from_end } + } + ProjectionElem::Subslice { from, to, from_end } => { + ProjectionElem::Subslice { from, to, from_end } + } + ProjectionElem::OpaqueCast(ty) => ProjectionElem::OpaqueCast(t(ty)), + ProjectionElem::Subtype(ty) => ProjectionElem::Subtype(t(ty)), + ProjectionElem::UnwrapUnsafeBinder(ty) => ProjectionElem::UnwrapUnsafeBinder(t(ty)), + ProjectionElem::Index(val) => ProjectionElem::Index(v(val)?), + }) + } } /// Alias for projections as they appear in `UserTypeProjection`, where we diff --git a/compiler/rustc_middle/src/mir/syntax.rs b/compiler/rustc_middle/src/mir/syntax.rs index 6039a03aa29..3b8def67f92 100644 --- a/compiler/rustc_middle/src/mir/syntax.rs +++ b/compiler/rustc_middle/src/mir/syntax.rs @@ -1371,12 +1371,7 @@ pub enum Rvalue<'tcx> { /// Creates an array where each element is the value of the operand. /// - /// This is the cause of a bug in the case where the repetition count is zero because the value - /// is not dropped, see [#74836]. - /// /// Corresponds to source code like `[x; 32]`. - /// - /// [#74836]: https://github.com/rust-lang/rust/issues/74836 Repeat(Operand<'tcx>, ty::Const<'tcx>), /// Creates a reference of the indicated kind to the place. diff --git a/compiler/rustc_middle/src/mir/visit.rs b/compiler/rustc_middle/src/mir/visit.rs index 42a68b29ec7..904d78d69b6 100644 --- a/compiler/rustc_middle/src/mir/visit.rs +++ b/compiler/rustc_middle/src/mir/visit.rs @@ -531,13 +531,20 @@ macro_rules! make_mir_visitor { unwind: _, replace: _, drop: _, - async_fut: _, + async_fut, } => { self.visit_place( place, PlaceContext::MutatingUse(MutatingUseContext::Drop), location ); + if let Some(async_fut) = async_fut { + self.visit_local( + $(&$mutability)? *async_fut, + PlaceContext::MutatingUse(MutatingUseContext::Borrow), + location + ); + } } TerminatorKind::Call { diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs index 3bb8353f49e..7bd8a0525a2 100644 --- a/compiler/rustc_middle/src/query/mod.rs +++ b/compiler/rustc_middle/src/query/mod.rs @@ -696,6 +696,22 @@ rustc_queries! { return_result_from_ensure_ok } + /// Used in case `mir_borrowck` fails to prove an obligation. We generally assume that + /// all goals we prove in MIR type check hold as we've already checked them in HIR typeck. + /// + /// However, we replace each free region in the MIR body with a unique region inference + /// variable. As we may rely on structural identity when proving goals this may cause a + /// goal to no longer hold. We store obligations for which this may happen during HIR + /// typeck in the `TypeckResults`. We then uniquify and reprove them in case MIR typeck + /// encounters an unexpected error. We expect this to result in an error when used and + /// delay a bug if it does not. + query check_potentially_region_dependent_goals(key: LocalDefId) -> Result<(), ErrorGuaranteed> { + desc { + |tcx| "reproving potentially region dependent HIR typeck goals for `{}", + tcx.def_path_str(key) + } + } + /// MIR after our optimization passes have run. This is MIR that is ready /// for codegen. This is also the only query that can fetch non-local MIR, at present. query optimized_mir(key: DefId) -> &'tcx mir::Body<'tcx> { @@ -1116,6 +1132,11 @@ rustc_queries! { } /// Unsafety-check this `LocalDefId`. + query check_transmutes(key: LocalDefId) { + desc { |tcx| "check transmute calls inside `{}`", tcx.def_path_str(key) } + } + + /// Unsafety-check this `LocalDefId`. query check_unsafety(key: LocalDefId) { desc { |tcx| "unsafety-checking `{}`", tcx.def_path_str(key) } } diff --git a/compiler/rustc_middle/src/query/on_disk_cache.rs b/compiler/rustc_middle/src/query/on_disk_cache.rs index a7ac3442898..546791135ba 100644 --- a/compiler/rustc_middle/src/query/on_disk_cache.rs +++ b/compiler/rustc_middle/src/query/on_disk_cache.rs @@ -645,34 +645,29 @@ impl<'a, 'tcx> SpanDecoder for CacheDecoder<'a, 'tcx> { let parent = Option::<LocalDefId>::decode(self); let tag: u8 = Decodable::decode(self); - if tag == TAG_PARTIAL_SPAN { - return Span::new(BytePos(0), BytePos(0), ctxt, parent); - } else if tag == TAG_RELATIVE_SPAN { - let dlo = u32::decode(self); - let dto = u32::decode(self); - - let enclosing = self.tcx.source_span_untracked(parent.unwrap()).data_untracked(); - let span = Span::new( - enclosing.lo + BytePos::from_u32(dlo), - enclosing.lo + BytePos::from_u32(dto), - ctxt, - parent, - ); - - return span; - } else { - debug_assert_eq!(tag, TAG_FULL_SPAN); - } - - let file_lo_index = SourceFileIndex::decode(self); - let line_lo = usize::decode(self); - let col_lo = RelativeBytePos::decode(self); - let len = BytePos::decode(self); - - let file_lo = self.file_index_to_file(file_lo_index); - let lo = file_lo.lines()[line_lo - 1] + col_lo; - let lo = file_lo.absolute_position(lo); - let hi = lo + len; + let (lo, hi) = match tag { + TAG_PARTIAL_SPAN => (BytePos(0), BytePos(0)), + TAG_RELATIVE_SPAN => { + let dlo = u32::decode(self); + let dto = u32::decode(self); + + let enclosing = self.tcx.source_span_untracked(parent.unwrap()).data_untracked(); + (enclosing.lo + BytePos::from_u32(dlo), enclosing.lo + BytePos::from_u32(dto)) + } + TAG_FULL_SPAN => { + let file_lo_index = SourceFileIndex::decode(self); + let line_lo = usize::decode(self); + let col_lo = RelativeBytePos::decode(self); + let len = BytePos::decode(self); + + let file_lo = self.file_index_to_file(file_lo_index); + let lo = file_lo.lines()[line_lo - 1] + col_lo; + let lo = file_lo.absolute_position(lo); + let hi = lo + len; + (lo, hi) + } + _ => unreachable!(), + }; Span::new(lo, hi, ctxt, parent) } diff --git a/compiler/rustc_middle/src/traits/mod.rs b/compiler/rustc_middle/src/traits/mod.rs index 5bdde3a514e..32f91bfba6b 100644 --- a/compiler/rustc_middle/src/traits/mod.rs +++ b/compiler/rustc_middle/src/traits/mod.rs @@ -760,6 +760,9 @@ pub enum DynCompatibilityViolation { // Supertrait has a non-lifetime `for<T>` binder. SupertraitNonLifetimeBinder(SmallVec<[Span; 1]>), + // Trait has a `const Trait` supertrait. + SupertraitConst(SmallVec<[Span; 1]>), + /// Method has something illegal. Method(Symbol, MethodViolationCode, Span), @@ -785,6 +788,9 @@ impl DynCompatibilityViolation { DynCompatibilityViolation::SupertraitNonLifetimeBinder(_) => { "where clause cannot reference non-lifetime `for<...>` variables".into() } + DynCompatibilityViolation::SupertraitConst(_) => { + "it cannot have a `const` supertrait".into() + } DynCompatibilityViolation::Method(name, MethodViolationCode::StaticMethod(_), _) => { format!("associated function `{name}` has no `self` parameter").into() } @@ -842,7 +848,8 @@ impl DynCompatibilityViolation { match self { DynCompatibilityViolation::SizedSelf(_) | DynCompatibilityViolation::SupertraitSelf(_) - | DynCompatibilityViolation::SupertraitNonLifetimeBinder(..) => { + | DynCompatibilityViolation::SupertraitNonLifetimeBinder(..) + | DynCompatibilityViolation::SupertraitConst(_) => { DynCompatibilityViolationSolution::None } DynCompatibilityViolation::Method( @@ -873,15 +880,17 @@ impl DynCompatibilityViolation { match self { DynCompatibilityViolation::SupertraitSelf(spans) | DynCompatibilityViolation::SizedSelf(spans) - | DynCompatibilityViolation::SupertraitNonLifetimeBinder(spans) => spans.clone(), + | DynCompatibilityViolation::SupertraitNonLifetimeBinder(spans) + | DynCompatibilityViolation::SupertraitConst(spans) => spans.clone(), DynCompatibilityViolation::AssocConst(_, span) | DynCompatibilityViolation::GAT(_, span) - | DynCompatibilityViolation::Method(_, _, span) - if *span != DUMMY_SP => - { - smallvec![*span] + | DynCompatibilityViolation::Method(_, _, span) => { + if *span != DUMMY_SP { + smallvec![*span] + } else { + smallvec![] + } } - _ => smallvec![], } } } diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index 49a4733de3b..4990a85466e 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -33,7 +33,7 @@ use rustc_errors::{ Applicability, Diag, DiagCtxtHandle, ErrorGuaranteed, LintDiagnostic, LintEmitter, MultiSpan, }; use rustc_hir::attrs::AttributeKind; -use rustc_hir::def::{CtorKind, DefKind}; +use rustc_hir::def::{CtorKind, CtorOf, DefKind}; use rustc_hir::def_id::{CrateNum, DefId, LOCAL_CRATE, LocalDefId}; use rustc_hir::definitions::{DefPathData, Definitions, DisambiguatorState}; use rustc_hir::intravisit::VisitorExt; @@ -445,7 +445,10 @@ impl<'tcx> Interner for TyCtxt<'tcx> { } fn fn_is_const(self, def_id: DefId) -> bool { - debug_assert_matches!(self.def_kind(def_id), DefKind::Fn | DefKind::AssocFn); + debug_assert_matches!( + self.def_kind(def_id), + DefKind::Fn | DefKind::AssocFn | DefKind::Ctor(CtorOf::Struct, CtorKind::Fn) + ); self.is_conditionally_const(def_id) } @@ -1418,6 +1421,8 @@ pub struct TyCtxt<'tcx> { } impl<'tcx> LintEmitter for TyCtxt<'tcx> { + type Id = HirId; + fn emit_node_span_lint( self, lint: &'static Lint, diff --git a/compiler/rustc_middle/src/ty/diagnostics.rs b/compiler/rustc_middle/src/ty/diagnostics.rs index b3042904a29..b9a6f67ab0d 100644 --- a/compiler/rustc_middle/src/ty/diagnostics.rs +++ b/compiler/rustc_middle/src/ty/diagnostics.rs @@ -23,7 +23,7 @@ impl IntoDiagArg for Ty<'_> { fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> rustc_errors::DiagArgValue { ty::tls::with(|tcx| { let ty = tcx.short_string(self, path); - rustc_errors::DiagArgValue::Str(std::borrow::Cow::Owned(ty)) + DiagArgValue::Str(std::borrow::Cow::Owned(ty)) }) } } @@ -32,7 +32,7 @@ impl IntoDiagArg for Instance<'_> { fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> rustc_errors::DiagArgValue { ty::tls::with(|tcx| { let instance = tcx.short_string_namespace(self, path, Namespace::ValueNS); - rustc_errors::DiagArgValue::Str(std::borrow::Cow::Owned(instance)) + DiagArgValue::Str(std::borrow::Cow::Owned(instance)) }) } } diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index e70c98ab704..e567ba05f61 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -32,7 +32,7 @@ use rustc_data_structures::intern::Interned; use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; use rustc_data_structures::steal::Steal; use rustc_data_structures::unord::{UnordMap, UnordSet}; -use rustc_errors::{Diag, ErrorGuaranteed}; +use rustc_errors::{Diag, ErrorGuaranteed, LintBuffer}; use rustc_hir::attrs::{AttributeKind, StrippedCfgItem}; use rustc_hir::def::{CtorKind, CtorOf, DefKind, DocLinkResMap, LifetimeRes, Res}; use rustc_hir::def_id::{CrateNum, DefId, DefIdMap, LocalDefId, LocalDefIdMap}; @@ -46,7 +46,6 @@ use rustc_macros::{ }; use rustc_query_system::ich::StableHashingContext; use rustc_serialize::{Decodable, Encodable}; -use rustc_session::lint::LintBuffer; pub use rustc_session::lint::RegisteredTools; use rustc_span::hygiene::MacroKind; use rustc_span::{DUMMY_SP, ExpnId, ExpnKind, Ident, Span, Symbol, sym}; @@ -830,14 +829,15 @@ impl<'tcx> OpaqueHiddenType<'tcx> { // Convert the type from the function into a type valid outside by mapping generic // parameters to into the context of the opaque. // - // We erase regions when doing this during HIR typeck. + // We erase regions when doing this during HIR typeck. We manually use `fold_regions` + // here as we do not want to anonymize bound variables. let this = match defining_scope_kind { - DefiningScopeKind::HirTypeck => tcx.erase_regions(self), + DefiningScopeKind::HirTypeck => fold_regions(tcx, self, |_, _| tcx.lifetimes.re_erased), DefiningScopeKind::MirBorrowck => self, }; let result = this.fold_with(&mut opaque_types::ReverseMapper::new(tcx, map, self.span)); if cfg!(debug_assertions) && matches!(defining_scope_kind, DefiningScopeKind::HirTypeck) { - assert_eq!(result.ty, tcx.erase_regions(result.ty)); + assert_eq!(result.ty, fold_regions(tcx, result.ty, |_, _| tcx.lifetimes.re_erased)); } result } diff --git a/compiler/rustc_middle/src/ty/print/mod.rs b/compiler/rustc_middle/src/ty/print/mod.rs index e6feafea122..9e6f277ef77 100644 --- a/compiler/rustc_middle/src/ty/print/mod.rs +++ b/compiler/rustc_middle/src/ty/print/mod.rs @@ -124,6 +124,15 @@ pub trait Printer<'tcx>: Sized { trait_ref: Option<ty::TraitRef<'tcx>>, ) -> Result<(), PrintError>; + fn print_coroutine_with_kind( + &mut self, + def_id: DefId, + parent_args: &'tcx [GenericArg<'tcx>], + kind: Ty<'tcx>, + ) -> Result<(), PrintError> { + self.print_path_with_generic_args(|p| p.print_def_path(def_id, parent_args), &[kind.into()]) + } + // Defaults (should not be overridden): #[instrument(skip(self), level = "debug")] @@ -162,9 +171,10 @@ pub trait Printer<'tcx>: Sized { )) = self.tcx().coroutine_kind(def_id) && args.len() > parent_args.len() { - return self.print_path_with_generic_args( - |p| p.print_def_path(def_id, parent_args), - &args[..parent_args.len() + 1][..1], + return self.print_coroutine_with_kind( + def_id, + parent_args, + args[parent_args.len()].expect_ty(), ); } else { // Closures' own generics are only captures, don't print them. diff --git a/compiler/rustc_middle/src/ty/sty.rs b/compiler/rustc_middle/src/ty/sty.rs index 72474a60566..755fc68d86f 100644 --- a/compiler/rustc_middle/src/ty/sty.rs +++ b/compiler/rustc_middle/src/ty/sty.rs @@ -821,10 +821,38 @@ impl<'tcx> Ty<'tcx> { #[inline] pub fn new_coroutine_witness( tcx: TyCtxt<'tcx>, - id: DefId, + def_id: DefId, args: GenericArgsRef<'tcx>, ) -> Ty<'tcx> { - Ty::new(tcx, CoroutineWitness(id, args)) + if cfg!(debug_assertions) { + tcx.debug_assert_args_compatible(tcx.typeck_root_def_id(def_id), args); + } + Ty::new(tcx, CoroutineWitness(def_id, args)) + } + + pub fn new_coroutine_witness_for_coroutine( + tcx: TyCtxt<'tcx>, + def_id: DefId, + coroutine_args: GenericArgsRef<'tcx>, + ) -> Ty<'tcx> { + tcx.debug_assert_args_compatible(def_id, coroutine_args); + // HACK: Coroutine witness types are lifetime erased, so they + // never reference any lifetime args from the coroutine. We erase + // the regions here since we may get into situations where a + // coroutine is recursively contained within itself, leading to + // witness types that differ by region args. This means that + // cycle detection in fulfillment will not kick in, which leads + // to unnecessary overflows in async code. See the issue: + // <https://github.com/rust-lang/rust/issues/145151>. + let args = + ty::GenericArgs::for_item(tcx, tcx.typeck_root_def_id(def_id), |def, _| { + match def.kind { + ty::GenericParamDefKind::Lifetime => tcx.lifetimes.re_erased.into(), + ty::GenericParamDefKind::Type { .. } + | ty::GenericParamDefKind::Const { .. } => coroutine_args[def.index as usize], + } + }); + Ty::new_coroutine_witness(tcx, def_id, args) } // misc @@ -985,6 +1013,14 @@ impl<'tcx> rustc_type_ir::inherent::Ty<TyCtxt<'tcx>> for Ty<'tcx> { Ty::new_coroutine_witness(interner, def_id, args) } + fn new_coroutine_witness_for_coroutine( + interner: TyCtxt<'tcx>, + def_id: DefId, + coroutine_args: ty::GenericArgsRef<'tcx>, + ) -> Self { + Ty::new_coroutine_witness_for_coroutine(interner, def_id, coroutine_args) + } + fn new_ptr(interner: TyCtxt<'tcx>, ty: Self, mutbl: hir::Mutability) -> Self { Ty::new_ptr(interner, ty, mutbl) } diff --git a/compiler/rustc_middle/src/ty/typeck_results.rs b/compiler/rustc_middle/src/ty/typeck_results.rs index 6b187c5325a..8dd80aab946 100644 --- a/compiler/rustc_middle/src/ty/typeck_results.rs +++ b/compiler/rustc_middle/src/ty/typeck_results.rs @@ -206,10 +206,25 @@ pub struct TypeckResults<'tcx> { /// formatting modified file tests/ui/coroutine/retain-resume-ref.rs pub coroutine_stalled_predicates: FxIndexSet<(ty::Predicate<'tcx>, ObligationCause<'tcx>)>, + /// Goals proven during HIR typeck which may be potentially region dependent. + /// + /// Borrowck *uniquifies* regions which may cause these goal to be ambiguous in MIR + /// type check. We ICE if goals fail in borrowck to detect bugs during MIR building or + /// missed checks in HIR typeck. To avoid ICE due to region dependence we store all + /// goals which may be region dependent and reprove them in case borrowck encounters + /// an error. + pub potentially_region_dependent_goals: + FxIndexSet<(ty::Predicate<'tcx>, ObligationCause<'tcx>)>, + /// Contains the data for evaluating the effect of feature `capture_disjoint_fields` /// on closure size. pub closure_size_eval: LocalDefIdMap<ClosureSizeProfileData<'tcx>>, + /// Stores the types involved in calls to `transmute` intrinsic. These are meant to be checked + /// outside of typeck and borrowck to avoid cycles with opaque types and coroutine layout + /// computation. + pub transmutes_to_check: Vec<(Ty<'tcx>, Ty<'tcx>, HirId)>, + /// Container types and field indices of `offset_of!` expressions offset_of_data: ItemLocalMap<(Ty<'tcx>, Vec<(VariantIdx, FieldIdx)>)>, } @@ -240,7 +255,9 @@ impl<'tcx> TypeckResults<'tcx> { closure_fake_reads: Default::default(), rvalue_scopes: Default::default(), coroutine_stalled_predicates: Default::default(), + potentially_region_dependent_goals: Default::default(), closure_size_eval: Default::default(), + transmutes_to_check: Default::default(), offset_of_data: Default::default(), } } diff --git a/compiler/rustc_mir_build/src/builder/coverageinfo.rs b/compiler/rustc_mir_build/src/builder/coverageinfo.rs index 14199c20921..091b9dad5bc 100644 --- a/compiler/rustc_mir_build/src/builder/coverageinfo.rs +++ b/compiler/rustc_mir_build/src/builder/coverageinfo.rs @@ -157,6 +157,21 @@ impl CoverageInfoBuilder { // if there's nothing interesting in it. Box::new(CoverageInfoHi { num_block_markers, branch_spans }) } + + pub(crate) fn as_done(&self) -> Box<CoverageInfoHi> { + let &Self { nots: _, markers: BlockMarkerGen { num_block_markers }, ref branch_info } = + self; + + let branch_spans = branch_info + .as_ref() + .map(|branch_info| branch_info.branch_spans.as_slice()) + .unwrap_or_default() + .to_owned(); + + // For simplicity, always return an info struct (without Option), even + // if there's nothing interesting in it. + Box::new(CoverageInfoHi { num_block_markers, branch_spans }) + } } impl<'tcx> Builder<'_, 'tcx> { diff --git a/compiler/rustc_mir_build/src/builder/mod.rs b/compiler/rustc_mir_build/src/builder/mod.rs index 9570760f943..6a8f0b21ee0 100644 --- a/compiler/rustc_mir_build/src/builder/mod.rs +++ b/compiler/rustc_mir_build/src/builder/mod.rs @@ -790,6 +790,28 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { builder } + #[allow(dead_code)] + fn dump_for_debugging(&self) { + let mut body = Body::new( + MirSource::item(self.def_id.to_def_id()), + self.cfg.basic_blocks.clone(), + self.source_scopes.clone(), + self.local_decls.clone(), + self.canonical_user_type_annotations.clone(), + self.arg_count.clone(), + self.var_debug_info.clone(), + self.fn_span.clone(), + self.coroutine.clone(), + None, + ); + body.coverage_info_hi = self.coverage_info.as_ref().map(|b| b.as_done()); + + use rustc_middle::mir::pretty; + let options = pretty::PrettyPrintMirOptions::from_cli(self.tcx); + pretty::write_mir_fn(self.tcx, &body, &mut |_, _| Ok(()), &mut std::io::stdout(), options) + .unwrap(); + } + fn finish(self) -> Body<'tcx> { let mut body = Body::new( MirSource::item(self.def_id.to_def_id()), diff --git a/compiler/rustc_mir_build/src/check_tail_calls.rs b/compiler/rustc_mir_build/src/check_tail_calls.rs index d4b6da2c14b..e0cbe8519ed 100644 --- a/compiler/rustc_mir_build/src/check_tail_calls.rs +++ b/compiler/rustc_mir_build/src/check_tail_calls.rs @@ -135,30 +135,23 @@ impl<'tcx> TailCallCkVisitor<'_, 'tcx> { self.report_abi_mismatch(expr.span, caller_sig.abi, callee_sig.abi); } + // FIXME(explicit_tail_calls): this currently fails for cases where opaques are used. + // e.g. + // ``` + // fn a() -> impl Sized { become b() } // ICE + // fn b() -> u8 { 0 } + // ``` + // we should think what is the expected behavior here. + // (we should probably just accept this by revealing opaques?) if caller_sig.inputs_and_output != callee_sig.inputs_and_output { - if caller_sig.inputs() != callee_sig.inputs() { - self.report_arguments_mismatch( - expr.span, - self.tcx.liberate_late_bound_regions( - CRATE_DEF_ID.to_def_id(), - self.caller_ty.fn_sig(self.tcx), - ), - self.tcx - .liberate_late_bound_regions(CRATE_DEF_ID.to_def_id(), ty.fn_sig(self.tcx)), - ); - } - - // FIXME(explicit_tail_calls): this currently fails for cases where opaques are used. - // e.g. - // ``` - // fn a() -> impl Sized { become b() } // ICE - // fn b() -> u8 { 0 } - // ``` - // we should think what is the expected behavior here. - // (we should probably just accept this by revealing opaques?) - if caller_sig.output() != callee_sig.output() { - span_bug!(expr.span, "hir typeck should have checked the return type already"); - } + self.report_signature_mismatch( + expr.span, + self.tcx.liberate_late_bound_regions( + CRATE_DEF_ID.to_def_id(), + self.caller_ty.fn_sig(self.tcx), + ), + self.tcx.liberate_late_bound_regions(CRATE_DEF_ID.to_def_id(), ty.fn_sig(self.tcx)), + ); } { @@ -365,7 +358,7 @@ impl<'tcx> TailCallCkVisitor<'_, 'tcx> { self.found_errors = Err(err); } - fn report_arguments_mismatch( + fn report_signature_mismatch( &mut self, sp: Span, caller_sig: ty::FnSig<'_>, diff --git a/compiler/rustc_mir_build/src/check_unsafety.rs b/compiler/rustc_mir_build/src/check_unsafety.rs index cdab785e842..b5e165c7517 100644 --- a/compiler/rustc_mir_build/src/check_unsafety.rs +++ b/compiler/rustc_mir_build/src/check_unsafety.rs @@ -8,7 +8,7 @@ use rustc_errors::DiagArgValue; use rustc_hir::attrs::AttributeKind; use rustc_hir::def::DefKind; use rustc_hir::{self as hir, BindingMode, ByRef, HirId, Mutability, find_attr}; -use rustc_middle::middle::codegen_fn_attrs::TargetFeature; +use rustc_middle::middle::codegen_fn_attrs::{TargetFeature, TargetFeatureKind}; use rustc_middle::mir::BorrowKind; use rustc_middle::span_bug; use rustc_middle::thir::visit::Visitor; @@ -522,7 +522,7 @@ impl<'a, 'tcx> Visitor<'a, 'tcx> for UnsafetyVisitor<'a, 'tcx> { .iter() .copied() .filter(|feature| { - !feature.implied + feature.kind == TargetFeatureKind::Enabled && !self .body_target_features .iter() diff --git a/compiler/rustc_mir_dataflow/Cargo.toml b/compiler/rustc_mir_dataflow/Cargo.toml index 293bcbef21b..9621f9f20bd 100644 --- a/compiler/rustc_mir_dataflow/Cargo.toml +++ b/compiler/rustc_mir_dataflow/Cargo.toml @@ -13,7 +13,6 @@ rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_fluent_macro = { path = "../rustc_fluent_macro" } rustc_graphviz = { path = "../rustc_graphviz" } -rustc_hir = { path = "../rustc_hir" } rustc_index = { path = "../rustc_index" } rustc_macros = { path = "../rustc_macros" } rustc_middle = { path = "../rustc_middle" } diff --git a/compiler/rustc_mir_dataflow/src/framework/graphviz.rs b/compiler/rustc_mir_dataflow/src/framework/graphviz.rs index f86a15a8f92..372a3f3a8b8 100644 --- a/compiler/rustc_mir_dataflow/src/framework/graphviz.rs +++ b/compiler/rustc_mir_dataflow/src/framework/graphviz.rs @@ -8,7 +8,6 @@ use std::sync::OnceLock; use std::{io, ops, str}; use regex::Regex; -use rustc_hir::def_id::DefId; use rustc_index::bit_set::DenseBitSet; use rustc_middle::mir::{ self, BasicBlock, Body, Location, create_dump_file, dump_enabled, graphviz_safe_def_name, @@ -16,6 +15,7 @@ use rustc_middle::mir::{ }; use rustc_middle::ty::TyCtxt; use rustc_middle::ty::print::with_no_trimmed_paths; +use rustc_span::def_id::DefId; use rustc_span::{Symbol, sym}; use tracing::debug; use {rustc_ast as ast, rustc_graphviz as dot}; diff --git a/compiler/rustc_mir_dataflow/src/move_paths/abs_domain.rs b/compiler/rustc_mir_dataflow/src/move_paths/abs_domain.rs deleted file mode 100644 index d056ad3d4b4..00000000000 --- a/compiler/rustc_mir_dataflow/src/move_paths/abs_domain.rs +++ /dev/null @@ -1,38 +0,0 @@ -//! The move-analysis portion of borrowck needs to work in an abstract -//! domain of lifted `Place`s. Most of the `Place` variants fall into a -//! one-to-one mapping between the concrete and abstract (e.g., a -//! field-deref on a local variable, `x.field`, has the same meaning -//! in both domains). Indexed projections are the exception: `a[x]` -//! needs to be treated as mapping to the same move path as `a[y]` as -//! well as `a[13]`, etc. So we map these `x`/`y` values to `()`. -//! -//! (In theory, the analysis could be extended to work with sets of -//! paths, so that `a[0]` and `a[13]` could be kept distinct, while -//! `a[x]` would still overlap them both. But that is not this -//! representation does today.) - -use rustc_middle::mir::{PlaceElem, ProjectionElem, ProjectionKind}; - -pub(crate) trait Lift { - fn lift(&self) -> ProjectionKind; -} - -impl<'tcx> Lift for PlaceElem<'tcx> { - fn lift(&self) -> ProjectionKind { - match *self { - ProjectionElem::Deref => ProjectionElem::Deref, - ProjectionElem::Field(f, _ty) => ProjectionElem::Field(f, ()), - ProjectionElem::OpaqueCast(_ty) => ProjectionElem::OpaqueCast(()), - ProjectionElem::Index(_i) => ProjectionElem::Index(()), - ProjectionElem::Subslice { from, to, from_end } => { - ProjectionElem::Subslice { from, to, from_end } - } - ProjectionElem::ConstantIndex { offset, min_length, from_end } => { - ProjectionElem::ConstantIndex { offset, min_length, from_end } - } - ProjectionElem::Downcast(a, u) => ProjectionElem::Downcast(a, u), - ProjectionElem::Subtype(_ty) => ProjectionElem::Subtype(()), - ProjectionElem::UnwrapUnsafeBinder(_ty) => ProjectionElem::UnwrapUnsafeBinder(()), - } - } -} diff --git a/compiler/rustc_mir_dataflow/src/move_paths/builder.rs b/compiler/rustc_mir_dataflow/src/move_paths/builder.rs index 8bbc89fdcec..48718cad597 100644 --- a/compiler/rustc_mir_dataflow/src/move_paths/builder.rs +++ b/compiler/rustc_mir_dataflow/src/move_paths/builder.rs @@ -7,7 +7,6 @@ use rustc_middle::{bug, span_bug}; use smallvec::{SmallVec, smallvec}; use tracing::debug; -use super::abs_domain::Lift; use super::{ Init, InitIndex, InitKind, InitLocation, LocationMap, LookupResult, MoveData, MoveOut, MoveOutIndex, MovePath, MovePathIndex, MovePathLookup, @@ -241,7 +240,7 @@ impl<'a, 'tcx, F: Fn(Ty<'tcx>) -> bool> MoveDataBuilder<'a, 'tcx, F> { if union_path.is_none() { // inlined from add_move_path because of a borrowck conflict with the iterator base = - *data.rev_lookup.projections.entry((base, elem.lift())).or_insert_with(|| { + *data.rev_lookup.projections.entry((base, elem.kind())).or_insert_with(|| { new_move_path( &mut data.move_paths, &mut data.path_map, @@ -272,7 +271,7 @@ impl<'a, 'tcx, F: Fn(Ty<'tcx>) -> bool> MoveDataBuilder<'a, 'tcx, F> { tcx, .. } = self; - *rev_lookup.projections.entry((base, elem.lift())).or_insert_with(move || { + *rev_lookup.projections.entry((base, elem.kind())).or_insert_with(move || { new_move_path(move_paths, path_map, init_path_map, Some(base), mk_place(*tcx)) }) } diff --git a/compiler/rustc_mir_dataflow/src/move_paths/mod.rs b/compiler/rustc_mir_dataflow/src/move_paths/mod.rs index 18985ba0da2..466416d63f5 100644 --- a/compiler/rustc_mir_dataflow/src/move_paths/mod.rs +++ b/compiler/rustc_mir_dataflow/src/move_paths/mod.rs @@ -1,3 +1,15 @@ +//! The move-analysis portion of borrowck needs to work in an abstract domain of lifted `Place`s. +//! Most of the `Place` variants fall into a one-to-one mapping between the concrete and abstract +//! (e.g., a field projection on a local variable, `x.field`, has the same meaning in both +//! domains). In other words, all field projections for the same field on the same local do not +//! have meaningfully different types if ever. Indexed projections are the exception: `a[x]` needs +//! to be treated as mapping to the same move path as `a[y]` as well as `a[13]`, etc. So we map +//! these `x`/`y` values to `()`. +//! +//! (In theory, the analysis could be extended to work with sets of paths, so that `a[0]` and +//! `a[13]` could be kept distinct, while `a[x]` would still overlap them both. But that is not +//! what this representation does today.) + use std::fmt; use std::ops::{Index, IndexMut}; @@ -8,11 +20,8 @@ use rustc_middle::ty::{Ty, TyCtxt}; use rustc_span::Span; use smallvec::SmallVec; -use self::abs_domain::Lift; use crate::un_derefer::UnDerefer; -mod abs_domain; - rustc_index::newtype_index! { #[orderable] #[debug_format = "mp{}"] @@ -324,7 +333,7 @@ impl<'tcx> MovePathLookup<'tcx> { }; for (_, elem) in self.un_derefer.iter_projections(place) { - if let Some(&subpath) = self.projections.get(&(result, elem.lift())) { + if let Some(&subpath) = self.projections.get(&(result, elem.kind())) { result = subpath; } else { return LookupResult::Parent(Some(result)); diff --git a/compiler/rustc_mir_dataflow/src/rustc_peek.rs b/compiler/rustc_mir_dataflow/src/rustc_peek.rs index 1682f332857..a899ec1fa88 100644 --- a/compiler/rustc_mir_dataflow/src/rustc_peek.rs +++ b/compiler/rustc_mir_dataflow/src/rustc_peek.rs @@ -1,7 +1,7 @@ use rustc_ast::MetaItem; -use rustc_hir::def_id::DefId; use rustc_middle::mir::{self, Body, Local, Location}; use rustc_middle::ty::{self, Ty, TyCtxt}; +use rustc_span::def_id::DefId; use rustc_span::{Span, Symbol, sym}; use tracing::{debug, info}; diff --git a/compiler/rustc_mir_transform/src/check_enums.rs b/compiler/rustc_mir_transform/src/check_enums.rs index 33a87cb9873..12447dc7cbb 100644 --- a/compiler/rustc_mir_transform/src/check_enums.rs +++ b/compiler/rustc_mir_transform/src/check_enums.rs @@ -48,6 +48,21 @@ impl<'tcx> crate::MirPass<'tcx> for CheckEnums { let new_block = split_block(basic_blocks, location); match check { + EnumCheckType::Direct { op_size, .. } + | EnumCheckType::WithNiche { op_size, .. } + if op_size.bytes() == 0 => + { + // It is never valid to use a ZST as a discriminant for an inhabited enum, but that will + // have been caught by the type checker. Do nothing but ensure that a bug has been signaled. + tcx.dcx().span_delayed_bug( + source_info.span, + "cannot build enum discriminant from zero-sized type", + ); + basic_blocks[block].terminator = Some(Terminator { + source_info, + kind: TerminatorKind::Goto { target: new_block }, + }); + } EnumCheckType::Direct { source_op, discr, op_size, valid_discrs } => { insert_direct_enum_check( tcx, diff --git a/compiler/rustc_mir_transform/src/coverage/counters.rs b/compiler/rustc_mir_transform/src/coverage/counters.rs index 5568d42ab8f..879a20e771d 100644 --- a/compiler/rustc_mir_transform/src/coverage/counters.rs +++ b/compiler/rustc_mir_transform/src/coverage/counters.rs @@ -16,7 +16,6 @@ use crate::coverage::graph::{BasicCoverageBlock, CoverageGraph}; mod balanced_flow; pub(crate) mod node_flow; -mod union_find; /// Struct containing the results of [`prepare_bcb_counters_data`]. pub(crate) struct BcbCountersData { diff --git a/compiler/rustc_mir_transform/src/coverage/counters/node_flow.rs b/compiler/rustc_mir_transform/src/coverage/counters/node_flow.rs index 91ed54b8b59..e063f75887b 100644 --- a/compiler/rustc_mir_transform/src/coverage/counters/node_flow.rs +++ b/compiler/rustc_mir_transform/src/coverage/counters/node_flow.rs @@ -7,13 +7,12 @@ //! (Knuth & Stevenson, 1973). use rustc_data_structures::graph; +use rustc_data_structures::union_find::UnionFind; use rustc_index::bit_set::DenseBitSet; use rustc_index::{Idx, IndexSlice, IndexVec}; pub(crate) use rustc_middle::mir::coverage::NodeFlowData; use rustc_middle::mir::coverage::Op; -use crate::coverage::counters::union_find::UnionFind; - #[cfg(test)] mod tests; diff --git a/compiler/rustc_mir_transform/src/gvn.rs b/compiler/rustc_mir_transform/src/gvn.rs index 952da2cdf72..5a13394543b 100644 --- a/compiler/rustc_mir_transform/src/gvn.rs +++ b/compiler/rustc_mir_transform/src/gvn.rs @@ -447,26 +447,9 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { Projection(base, elem) => { let base = self.evaluated[base].as_ref()?; - let elem = match elem { - ProjectionElem::Deref => ProjectionElem::Deref, - ProjectionElem::Downcast(name, read_variant) => { - ProjectionElem::Downcast(name, read_variant) - } - ProjectionElem::Field(f, ()) => ProjectionElem::Field(f, ty.ty), - ProjectionElem::ConstantIndex { offset, min_length, from_end } => { - ProjectionElem::ConstantIndex { offset, min_length, from_end } - } - ProjectionElem::Subslice { from, to, from_end } => { - ProjectionElem::Subslice { from, to, from_end } - } - ProjectionElem::OpaqueCast(()) => ProjectionElem::OpaqueCast(ty.ty), - ProjectionElem::Subtype(()) => ProjectionElem::Subtype(ty.ty), - ProjectionElem::UnwrapUnsafeBinder(()) => { - ProjectionElem::UnwrapUnsafeBinder(ty.ty) - } - // This should have been replaced by a `ConstantIndex` earlier. - ProjectionElem::Index(_) => return None, - }; + // `Index` by constants should have been replaced by `ConstantIndex` by + // `simplify_place_projection`. + let elem = elem.try_map(|_| None, |()| ty.ty)?; self.ecx.project(base, elem).discard_err()? } Address { place, kind: _, provenance: _ } => { @@ -476,13 +459,11 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { let local = self.locals[place.local]?; let pointer = self.evaluated[local].as_ref()?; let mut mplace = self.ecx.deref_pointer(pointer).discard_err()?; - for proj in place.projection.iter().skip(1) { - // We have no call stack to associate a local with a value, so we cannot - // interpret indexing. - if matches!(proj, ProjectionElem::Index(_)) { - return None; - } - mplace = self.ecx.project(&mplace, proj).discard_err()?; + for elem in place.projection.iter().skip(1) { + // `Index` by constants should have been replaced by `ConstantIndex` by + // `simplify_place_projection`. + let elem = elem.try_map(|_| None, |ty| ty)?; + mplace = self.ecx.project(&mplace, elem).discard_err()?; } let pointer = mplace.to_ref(&self.ecx); ImmTy::from_immediate(pointer, ty).into() @@ -902,27 +883,14 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { proj: ProjectionElem<VnIndex, ()>, loc: Location, ) -> Option<PlaceElem<'tcx>> { - Some(match proj { - ProjectionElem::Deref => ProjectionElem::Deref, - ProjectionElem::Field(idx, ()) => ProjectionElem::Field(idx, ty), - ProjectionElem::Index(idx) => { - let Some(local) = self.try_as_local(idx, loc) else { - return None; - }; + proj.try_map( + |value| { + let local = self.try_as_local(value, loc)?; self.reused_locals.insert(local); - ProjectionElem::Index(local) - } - ProjectionElem::ConstantIndex { offset, min_length, from_end } => { - ProjectionElem::ConstantIndex { offset, min_length, from_end } - } - ProjectionElem::Subslice { from, to, from_end } => { - ProjectionElem::Subslice { from, to, from_end } - } - ProjectionElem::Downcast(symbol, idx) => ProjectionElem::Downcast(symbol, idx), - ProjectionElem::OpaqueCast(()) => ProjectionElem::OpaqueCast(ty), - ProjectionElem::Subtype(()) => ProjectionElem::Subtype(ty), - ProjectionElem::UnwrapUnsafeBinder(()) => ProjectionElem::UnwrapUnsafeBinder(ty), - }) + Some(local) + }, + |()| ty, + ) } fn simplify_aggregate_to_copy( diff --git a/compiler/rustc_mir_transform/src/ref_prop.rs b/compiler/rustc_mir_transform/src/ref_prop.rs index d1c2d6b508f..6f61215cee2 100644 --- a/compiler/rustc_mir_transform/src/ref_prop.rs +++ b/compiler/rustc_mir_transform/src/ref_prop.rs @@ -79,6 +79,7 @@ impl<'tcx> crate::MirPass<'tcx> for ReferencePropagation { #[instrument(level = "trace", skip(self, tcx, body))] fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { debug!(def_id = ?body.source.def_id()); + move_to_copy_pointers(tcx, body); while propagate_ssa(tcx, body) {} } @@ -87,11 +88,43 @@ impl<'tcx> crate::MirPass<'tcx> for ReferencePropagation { } } +/// The SSA analysis done by [`SsaLocals`] treats [`Operand::Move`] as a read, even though in +/// general [`Operand::Move`] represents pass-by-pointer where the callee can overwrite the +/// pointee (Miri always considers the place deinitialized). CopyProp has a similar trick to +/// turn [`Operand::Move`] into [`Operand::Copy`] when required for an optimization, but in this +/// pass we just turn all moves of pointers into copies because pointers should be by-value anyway. +fn move_to_copy_pointers<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { + let mut visitor = MoveToCopyVisitor { tcx, local_decls: &body.local_decls }; + for (bb, data) in body.basic_blocks.as_mut_preserves_cfg().iter_enumerated_mut() { + visitor.visit_basic_block_data(bb, data); + } + + struct MoveToCopyVisitor<'a, 'tcx> { + tcx: TyCtxt<'tcx>, + local_decls: &'a IndexVec<Local, LocalDecl<'tcx>>, + } + + impl<'a, 'tcx> MutVisitor<'tcx> for MoveToCopyVisitor<'a, 'tcx> { + fn tcx(&self) -> TyCtxt<'tcx> { + self.tcx + } + + fn visit_operand(&mut self, operand: &mut Operand<'tcx>, loc: Location) { + if let Operand::Move(place) = *operand { + if place.ty(self.local_decls, self.tcx).ty.is_any_ptr() { + *operand = Operand::Copy(place); + } + } + self.super_operand(operand, loc); + } + } +} + fn propagate_ssa<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) -> bool { let typing_env = body.typing_env(tcx); let ssa = SsaLocals::new(tcx, body, typing_env); - let mut replacer = compute_replacement(tcx, body, &ssa); + let mut replacer = compute_replacement(tcx, body, ssa); debug!(?replacer.targets); debug!(?replacer.allowed_replacements); debug!(?replacer.storage_to_remove); @@ -119,7 +152,7 @@ enum Value<'tcx> { fn compute_replacement<'tcx>( tcx: TyCtxt<'tcx>, body: &Body<'tcx>, - ssa: &SsaLocals, + ssa: SsaLocals, ) -> Replacer<'tcx> { let always_live_locals = always_storage_live_locals(body); @@ -138,7 +171,7 @@ fn compute_replacement<'tcx>( // reborrowed references. let mut storage_to_remove = DenseBitSet::new_empty(body.local_decls.len()); - let fully_replaceable_locals = fully_replaceable_locals(ssa); + let fully_replaceable_locals = fully_replaceable_locals(&ssa); // Returns true iff we can use `place` as a pointee. // diff --git a/compiler/rustc_next_trait_solver/src/canonicalizer.rs b/compiler/rustc_next_trait_solver/src/canonicalizer.rs index 1bc35e599c7..da05c49756f 100644 --- a/compiler/rustc_next_trait_solver/src/canonicalizer.rs +++ b/compiler/rustc_next_trait_solver/src/canonicalizer.rs @@ -25,12 +25,8 @@ enum CanonicalizeInputKind { /// trait candidates relies on it when deciding whether a where-bound /// is trivial. ParamEnv, - /// When canonicalizing predicates, we don't keep `'static`. If we're - /// currently outside of the trait solver and canonicalize the root goal - /// during HIR typeck, we replace each occurance of a region with a - /// unique region variable. See the comment on `InferCtxt::in_hir_typeck` - /// for more details. - Predicate { is_hir_typeck_root_goal: bool }, + /// When canonicalizing predicates, we don't keep `'static`. + Predicate, } /// Whether we're canonicalizing a query input or the query response. @@ -191,7 +187,6 @@ impl<'a, D: SolverDelegate<Interner = I>, I: Interner> Canonicalizer<'a, D, I> { pub fn canonicalize_input<P: TypeFoldable<I>>( delegate: &'a D, variables: &'a mut Vec<I::GenericArg>, - is_hir_typeck_root_goal: bool, input: QueryInput<I, P>, ) -> ty::Canonical<I, QueryInput<I, P>> { // First canonicalize the `param_env` while keeping `'static` @@ -201,9 +196,7 @@ impl<'a, D: SolverDelegate<Interner = I>, I: Interner> Canonicalizer<'a, D, I> { // while *mostly* reusing the canonicalizer from above. let mut rest_canonicalizer = Canonicalizer { delegate, - canonicalize_mode: CanonicalizeMode::Input(CanonicalizeInputKind::Predicate { - is_hir_typeck_root_goal, - }), + canonicalize_mode: CanonicalizeMode::Input(CanonicalizeInputKind::Predicate), variables, variable_lookup_table, @@ -481,31 +474,13 @@ impl<D: SolverDelegate<Interner = I>, I: Interner> TypeFolder<I> for Canonicaliz } }; - let var = if let CanonicalizeMode::Input(CanonicalizeInputKind::Predicate { - is_hir_typeck_root_goal: true, - }) = self.canonicalize_mode - { - let var = ty::BoundVar::from(self.variables.len()); - self.variables.push(r.into()); - self.var_kinds.push(kind); - var - } else { - self.get_or_insert_bound_var(r, kind) - }; + let var = self.get_or_insert_bound_var(r, kind); Region::new_anon_bound(self.cx(), self.binder_index, var) } fn fold_ty(&mut self, t: I::Ty) -> I::Ty { - if let CanonicalizeMode::Input(CanonicalizeInputKind::Predicate { - is_hir_typeck_root_goal: true, - }) = self.canonicalize_mode - { - // If we're canonicalizing a root goal during HIR typeck, we - // must not use the `cache` as we want to map each occurrence - // of a region to a unique existential variable. - self.inner_fold_ty(t) - } else if let Some(&ty) = self.cache.get(&(self.binder_index, t)) { + if let Some(&ty) = self.cache.get(&(self.binder_index, t)) { ty } else { let res = self.inner_fold_ty(t); diff --git a/compiler/rustc_next_trait_solver/src/solve/assembly/structural_traits.rs b/compiler/rustc_next_trait_solver/src/solve/assembly/structural_traits.rs index faa86734d08..d25e74e7335 100644 --- a/compiler/rustc_next_trait_solver/src/solve/assembly/structural_traits.rs +++ b/compiler/rustc_next_trait_solver/src/solve/assembly/structural_traits.rs @@ -75,17 +75,10 @@ where Ok(ty::Binder::dummy(vec![args.as_coroutine_closure().tupled_upvars_ty()])) } - ty::Coroutine(def_id, args) => { - let coroutine_args = args.as_coroutine(); - Ok(ty::Binder::dummy(vec![ - coroutine_args.tupled_upvars_ty(), - Ty::new_coroutine_witness( - ecx.cx(), - def_id, - ecx.cx().mk_args(coroutine_args.parent_args().as_slice()), - ), - ])) - } + ty::Coroutine(def_id, args) => Ok(ty::Binder::dummy(vec![ + args.as_coroutine().tupled_upvars_ty(), + Ty::new_coroutine_witness_for_coroutine(ecx.cx(), def_id, args), + ])), ty::CoroutineWitness(def_id, args) => Ok(ecx .cx() @@ -251,14 +244,9 @@ where Movability::Static => Err(NoSolution), Movability::Movable => { if ecx.cx().features().coroutine_clone() { - let coroutine = args.as_coroutine(); Ok(ty::Binder::dummy(vec![ - coroutine.tupled_upvars_ty(), - Ty::new_coroutine_witness( - ecx.cx(), - def_id, - ecx.cx().mk_args(coroutine.parent_args().as_slice()), - ), + args.as_coroutine().tupled_upvars_ty(), + Ty::new_coroutine_witness_for_coroutine(ecx.cx(), def_id, args), ])) } else { Err(NoSolution) diff --git a/compiler/rustc_next_trait_solver/src/solve/effect_goals.rs b/compiler/rustc_next_trait_solver/src/solve/effect_goals.rs index 9a22bf58c03..b7ae9994c62 100644 --- a/compiler/rustc_next_trait_solver/src/solve/effect_goals.rs +++ b/compiler/rustc_next_trait_solver/src/solve/effect_goals.rs @@ -6,7 +6,7 @@ use rustc_type_ir::inherent::*; use rustc_type_ir::lang_items::TraitSolverLangItem; use rustc_type_ir::solve::SizedTraitKind; use rustc_type_ir::solve::inspect::ProbeKind; -use rustc_type_ir::{self as ty, Interner, elaborate}; +use rustc_type_ir::{self as ty, Interner, TypingMode, elaborate}; use tracing::instrument; use super::assembly::{Candidate, structural_traits}; @@ -135,12 +135,16 @@ where } let impl_polarity = cx.impl_polarity(impl_def_id); - match impl_polarity { + let certainty = match impl_polarity { ty::ImplPolarity::Negative => return Err(NoSolution), - ty::ImplPolarity::Reservation => { - unimplemented!("reservation impl for const trait: {:?}", goal) - } - ty::ImplPolarity::Positive => {} + ty::ImplPolarity::Reservation => match ecx.typing_mode() { + TypingMode::Coherence => Certainty::AMBIGUOUS, + TypingMode::Analysis { .. } + | TypingMode::Borrowck { .. } + | TypingMode::PostBorrowckAnalysis { .. } + | TypingMode::PostAnalysis => return Err(NoSolution), + }, + ty::ImplPolarity::Positive => Certainty::Yes, }; if !cx.impl_is_const(impl_def_id) { @@ -171,7 +175,7 @@ where }); ecx.add_goals(GoalSource::ImplWhereBound, const_conditions); - ecx.evaluate_added_goals_and_make_canonical_response(Certainty::Yes) + ecx.evaluate_added_goals_and_make_canonical_response(certainty) }) } diff --git a/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/canonical.rs b/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/canonical.rs index 74c5b49ea92..4644b145b18 100644 --- a/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/canonical.rs +++ b/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/canonical.rs @@ -57,7 +57,6 @@ where /// This expects `goal` and `opaque_types` to be eager resolved. pub(super) fn canonicalize_goal( &self, - is_hir_typeck_root_goal: bool, goal: Goal<I, I::Predicate>, opaque_types: Vec<(ty::OpaqueTypeKey<I>, I::Ty)>, ) -> (Vec<I::GenericArg>, CanonicalInput<I, I::Predicate>) { @@ -65,7 +64,6 @@ where let canonical = Canonicalizer::canonicalize_input( self.delegate, &mut orig_values, - is_hir_typeck_root_goal, QueryInput { goal, predefined_opaques_in_body: self diff --git a/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/mod.rs b/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/mod.rs index a4738306181..4f87902e46e 100644 --- a/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/mod.rs +++ b/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/mod.rs @@ -4,7 +4,6 @@ use std::ops::ControlFlow; #[cfg(feature = "nightly")] use rustc_macros::HashStable_NoContext; use rustc_type_ir::data_structures::{HashMap, HashSet}; -use rustc_type_ir::fast_reject::DeepRejectCtxt; use rustc_type_ir::inherent::*; use rustc_type_ir::relate::Relate; use rustc_type_ir::relate::solver_relating::RelateExt; @@ -459,10 +458,7 @@ where let opaque_types = self.delegate.clone_opaque_types_lookup_table(); let (goal, opaque_types) = eager_resolve_vars(self.delegate, (goal, opaque_types)); - let is_hir_typeck_root_goal = matches!(goal_evaluation_kind, GoalEvaluationKind::Root) - && self.delegate.in_hir_typeck(); - let (orig_values, canonical_goal) = - self.canonicalize_goal(is_hir_typeck_root_goal, goal, opaque_types); + let (orig_values, canonical_goal) = self.canonicalize_goal(goal, opaque_types); let mut goal_evaluation = self.inspect.new_goal_evaluation(goal, &orig_values, goal_evaluation_kind); let canonical_result = self.search_graph.evaluate_goal( @@ -1131,6 +1127,7 @@ where self.delegate.fetch_eligible_assoc_item(goal_trait_ref, trait_assoc_def_id, impl_def_id) } + #[instrument(level = "debug", skip(self), ret)] pub(super) fn register_hidden_type_in_storage( &mut self, opaque_type_key: ty::OpaqueTypeKey<I>, @@ -1157,29 +1154,6 @@ where self.add_goals(GoalSource::AliasWellFormed, goals); } - // Do something for each opaque/hidden pair defined with `def_id` in the - // current inference context. - pub(super) fn probe_existing_opaque_ty( - &mut self, - key: ty::OpaqueTypeKey<I>, - ) -> Option<(ty::OpaqueTypeKey<I>, I::Ty)> { - // We shouldn't have any duplicate entries when using - // this function during `TypingMode::Analysis`. - let duplicate_entries = self.delegate.clone_duplicate_opaque_types(); - assert!(duplicate_entries.is_empty(), "unexpected duplicates: {duplicate_entries:?}"); - let mut matching = self.delegate.clone_opaque_types_lookup_table().into_iter().filter( - |(candidate_key, _)| { - candidate_key.def_id == key.def_id - && DeepRejectCtxt::relate_rigid_rigid(self.cx()) - .args_may_unify(candidate_key.args, key.args) - }, - ); - let first = matching.next(); - let second = matching.next(); - assert_eq!(second, None); - first - } - // Try to evaluate a const, or return `None` if the const is too generic. // This doesn't mean the const isn't evaluatable, though, and should be treated // as an ambiguity rather than no-solution. diff --git a/compiler/rustc_next_trait_solver/src/solve/normalizes_to/opaque_types.rs b/compiler/rustc_next_trait_solver/src/solve/normalizes_to/opaque_types.rs index df3ad1e468b..a5f857a1dd8 100644 --- a/compiler/rustc_next_trait_solver/src/solve/normalizes_to/opaque_types.rs +++ b/compiler/rustc_next_trait_solver/src/solve/normalizes_to/opaque_types.rs @@ -1,13 +1,12 @@ //! Computes a normalizes-to (projection) goal for opaque types. This goal //! behaves differently depending on the current `TypingMode`. -use rustc_index::bit_set::GrowableBitSet; use rustc_type_ir::inherent::*; use rustc_type_ir::solve::GoalSource; use rustc_type_ir::{self as ty, Interner, TypingMode, fold_regions}; use crate::delegate::SolverDelegate; -use crate::solve::{Certainty, EvalCtxt, Goal, NoSolution, QueryResult, inspect}; +use crate::solve::{Certainty, EvalCtxt, Goal, QueryResult}; impl<D, I> EvalCtxt<'_, D> where @@ -39,100 +38,68 @@ where self.add_goal(GoalSource::Misc, goal.with(cx, ty::PredicateKind::Ambiguous)); self.evaluate_added_goals_and_make_canonical_response(Certainty::Yes) } - TypingMode::Analysis { defining_opaque_types_and_generators } => { + TypingMode::Analysis { + defining_opaque_types_and_generators: defining_opaque_types, + } + | TypingMode::Borrowck { defining_opaque_types } => { let Some(def_id) = opaque_ty .def_id .as_local() - .filter(|&def_id| defining_opaque_types_and_generators.contains(&def_id)) + .filter(|&def_id| defining_opaque_types.contains(&def_id)) else { + // If we're not in the defining scope, treat the alias as rigid. self.structurally_instantiate_normalizes_to_term(goal, goal.predicate.alias); return self.evaluate_added_goals_and_make_canonical_response(Certainty::Yes); }; - // FIXME: This may have issues when the args contain aliases... - match uses_unique_placeholders_ignoring_regions(self.cx(), opaque_ty.args) { - Err(NotUniqueParam::NotParam(param)) if param.is_non_region_infer() => { - return self.evaluate_added_goals_and_make_canonical_response( - Certainty::AMBIGUOUS, - ); - } - Err(_) => { - return Err(NoSolution); - } - Ok(()) => {} - } - // Prefer opaques registered already. - let opaque_type_key = ty::OpaqueTypeKey { def_id, args: opaque_ty.args }; - // FIXME: This also unifies the previous hidden type with the expected. + // We structurally normalize the args so that we're able to detect defining uses + // later on. // - // If that fails, we insert `expected` as a new hidden type instead of - // eagerly emitting an error. - let existing = self.probe_existing_opaque_ty(opaque_type_key); - if let Some((candidate_key, candidate_ty)) = existing { - return self - .probe(|result| inspect::ProbeKind::OpaqueTypeStorageLookup { - result: *result, - }) - .enter(|ecx| { - for (a, b) in std::iter::zip( - candidate_key.args.iter(), - opaque_type_key.args.iter(), - ) { - ecx.eq(goal.param_env, a, b)?; - } - ecx.eq(goal.param_env, candidate_ty, expected)?; - ecx.add_item_bounds_for_hidden_type( - def_id.into(), - candidate_key.args, - goal.param_env, - candidate_ty, - ); - ecx.evaluate_added_goals_and_make_canonical_response(Certainty::Yes) - }); - } + // This reduces the amount of duplicate definitions in the `opaque_type_storage` and + // strengthens inference. This causes us to subtly depend on the normalization behavior + // when inferring the hidden type of opaques. + // + // E.g. it's observable that we don't normalize nested aliases with bound vars in + // `structurally_normalize` and because we use structural lookup, we also don't + // reuse an entry for `Tait<for<'a> fn(&'a ())>` for `Tait<for<'b> fn(&'b ())>`. + let normalized_args = + cx.mk_args_from_iter(opaque_ty.args.iter().map(|arg| match arg.kind() { + ty::GenericArgKind::Lifetime(lt) => Ok(lt.into()), + ty::GenericArgKind::Type(ty) => { + self.structurally_normalize_ty(goal.param_env, ty).map(Into::into) + } + ty::GenericArgKind::Const(ct) => { + self.structurally_normalize_const(goal.param_env, ct).map(Into::into) + } + }))?; - // Otherwise, define a new opaque type - let prev = self.register_hidden_type_in_storage(opaque_type_key, expected); - assert_eq!(prev, None); - self.add_item_bounds_for_hidden_type( - def_id.into(), - opaque_ty.args, - goal.param_env, - expected, - ); - self.evaluate_added_goals_and_make_canonical_response(Certainty::Yes) - } - // Very similar to `TypingMode::Analysis` with some notably differences: - // - we accept opaque types even if they have non-universal arguments - // - we do a structural lookup instead of semantically unifying regions - // - the hidden type starts out as the type from HIR typeck with fresh region - // variables instead of a fully unconstrained inference variable - TypingMode::Borrowck { defining_opaque_types } => { - let Some(def_id) = opaque_ty - .def_id - .as_local() - .filter(|&def_id| defining_opaque_types.contains(&def_id)) - else { - self.structurally_instantiate_normalizes_to_term(goal, goal.predicate.alias); - return self.evaluate_added_goals_and_make_canonical_response(Certainty::Yes); - }; + let opaque_type_key = ty::OpaqueTypeKey { def_id, args: normalized_args }; + if let Some(prev) = self.register_hidden_type_in_storage(opaque_type_key, expected) + { + self.eq(goal.param_env, expected, prev)?; + } else { + // During HIR typeck, opaque types start out as unconstrained + // inference variables. In borrowck we instead use the type + // computed in HIR typeck as the initial value. + match self.typing_mode() { + TypingMode::Analysis { .. } => {} + TypingMode::Borrowck { .. } => { + let actual = cx + .type_of_opaque_hir_typeck(def_id) + .instantiate(cx, opaque_ty.args); + let actual = fold_regions(cx, actual, |re, _dbi| match re.kind() { + ty::ReErased => self.next_region_var(), + _ => re, + }); + self.eq(goal.param_env, expected, actual)?; + } + _ => unreachable!(), + } + } - let opaque_type_key = ty::OpaqueTypeKey { def_id, args: opaque_ty.args }; - let actual = self - .register_hidden_type_in_storage(opaque_type_key, expected) - .unwrap_or_else(|| { - let actual = - cx.type_of_opaque_hir_typeck(def_id).instantiate(cx, opaque_ty.args); - let actual = fold_regions(cx, actual, |re, _dbi| match re.kind() { - ty::ReErased => self.next_region_var(), - _ => re, - }); - actual - }); - self.eq(goal.param_env, expected, actual)?; self.add_item_bounds_for_hidden_type( def_id.into(), - opaque_ty.args, + normalized_args, goal.param_env, expected, ); @@ -168,44 +135,3 @@ where } } } - -/// Checks whether each generic argument is simply a unique generic placeholder. -/// -/// FIXME: Interner argument is needed to constrain the `I` parameter. -fn uses_unique_placeholders_ignoring_regions<I: Interner>( - _cx: I, - args: I::GenericArgs, -) -> Result<(), NotUniqueParam<I>> { - let mut seen = GrowableBitSet::default(); - for arg in args.iter() { - match arg.kind() { - // Ignore regions, since we can't resolve those in a canonicalized - // query in the trait solver. - ty::GenericArgKind::Lifetime(_) => {} - ty::GenericArgKind::Type(t) => match t.kind() { - ty::Placeholder(p) => { - if !seen.insert(p.var()) { - return Err(NotUniqueParam::DuplicateParam(t.into())); - } - } - _ => return Err(NotUniqueParam::NotParam(t.into())), - }, - ty::GenericArgKind::Const(c) => match c.kind() { - ty::ConstKind::Placeholder(p) => { - if !seen.insert(p.var()) { - return Err(NotUniqueParam::DuplicateParam(c.into())); - } - } - _ => return Err(NotUniqueParam::NotParam(c.into())), - }, - } - } - - Ok(()) -} - -// FIXME: This should check for dupes and non-params first, then infer vars. -enum NotUniqueParam<I: Interner> { - DuplicateParam(I::GenericArg), - NotParam(I::GenericArg), -} diff --git a/compiler/rustc_next_trait_solver/src/solve/trait_goals.rs b/compiler/rustc_next_trait_solver/src/solve/trait_goals.rs index 04ede365a21..891ecab041a 100644 --- a/compiler/rustc_next_trait_solver/src/solve/trait_goals.rs +++ b/compiler/rustc_next_trait_solver/src/solve/trait_goals.rs @@ -6,8 +6,8 @@ use rustc_type_ir::inherent::*; use rustc_type_ir::lang_items::TraitSolverLangItem; use rustc_type_ir::solve::{CanonicalResponse, SizedTraitKind}; use rustc_type_ir::{ - self as ty, Interner, Movability, TraitPredicate, TraitRef, TypeVisitableExt as _, TypingMode, - Upcast as _, elaborate, + self as ty, Interner, Movability, PredicatePolarity, TraitPredicate, TraitRef, + TypeVisitableExt as _, TypingMode, Upcast as _, elaborate, }; use tracing::{debug, instrument, trace}; @@ -133,19 +133,26 @@ where cx: I, clause_def_id: I::DefId, goal_def_id: I::DefId, + polarity: PredicatePolarity, ) -> bool { clause_def_id == goal_def_id // PERF(sized-hierarchy): Sizedness supertraits aren't elaborated to improve perf, so // check for a `MetaSized` supertrait being matched against a `Sized` assumption. // // `PointeeSized` bounds are syntactic sugar for a lack of bounds so don't need this. - || (cx.is_lang_item(clause_def_id, TraitSolverLangItem::Sized) + || (polarity == PredicatePolarity::Positive + && cx.is_lang_item(clause_def_id, TraitSolverLangItem::Sized) && cx.is_lang_item(goal_def_id, TraitSolverLangItem::MetaSized)) } if let Some(trait_clause) = assumption.as_trait_clause() && trait_clause.polarity() == goal.predicate.polarity - && trait_def_id_matches(ecx.cx(), trait_clause.def_id(), goal.predicate.def_id()) + && trait_def_id_matches( + ecx.cx(), + trait_clause.def_id(), + goal.predicate.def_id(), + goal.predicate.polarity, + ) && DeepRejectCtxt::relate_rigid_rigid(ecx.cx()).args_may_unify( goal.predicate.trait_ref.args, trait_clause.skip_binder().trait_ref.args, @@ -168,6 +175,8 @@ where // PERF(sized-hierarchy): Sizedness supertraits aren't elaborated to improve perf, so // check for a `Sized` subtrait when looking for `MetaSized`. `PointeeSized` bounds // are syntactic sugar for a lack of bounds so don't need this. + // We don't need to check polarity, `fast_reject_assumption` already rejected non-`Positive` + // polarity `Sized` assumptions as matching non-`Positive` `MetaSized` goals. if ecx.cx().is_lang_item(goal.predicate.def_id(), TraitSolverLangItem::MetaSized) && ecx.cx().is_lang_item(trait_clause.def_id(), TraitSolverLangItem::Sized) { diff --git a/compiler/rustc_parse/Cargo.toml b/compiler/rustc_parse/Cargo.toml index 0ae0b613fa2..6d738a10371 100644 --- a/compiler/rustc_parse/Cargo.toml +++ b/compiler/rustc_parse/Cargo.toml @@ -9,7 +9,6 @@ bitflags = "2.4.1" rustc-literal-escaper = "0.0.5" rustc_ast = { path = "../rustc_ast" } rustc_ast_pretty = { path = "../rustc_ast_pretty" } -rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_feature = { path = "../rustc_feature" } diff --git a/compiler/rustc_parse/messages.ftl b/compiler/rustc_parse/messages.ftl index 9e0075c21b9..4ca2f57bd87 100644 --- a/compiler/rustc_parse/messages.ftl +++ b/compiler/rustc_parse/messages.ftl @@ -359,6 +359,20 @@ parse_generics_in_path = unexpected generic arguments in path parse_help_set_edition_cargo = set `edition = "{$edition}"` in `Cargo.toml` parse_help_set_edition_standalone = pass `--edition {$edition}` to `rustc` + +parse_hidden_unicode_codepoints = unicode codepoint changing visible direction of text present in {$label} + .label = this {$label} contains {$count -> + [one] an invisible + *[other] invisible + } unicode text flow control {$count -> + [one] codepoint + *[other] codepoints + } + .note = these kind of unicode codepoints change the way text flows on applications that support them, but can cause confusion because they change the order of characters on the screen + .suggestion_remove = if their presence wasn't intentional, you can remove them + .suggestion_escape = if you want to keep them but make them visible in your source code, you can escape them + .no_suggestion_note_escape = if you want to keep them but make them visible in your source code, you can escape them: {$escaped} + parse_if_expression_missing_condition = missing condition for `if` expression .condition_label = expected condition here .block_label = if this block is the condition of the `if` expression, then it must be followed by another block @@ -436,11 +450,6 @@ parse_inner_doc_comment_not_permitted = expected outer doc comment .label_does_not_annotate_this = the inner doc comment doesn't annotate this {$item} .sugg_change_inner_to_outer = to annotate the {$item}, change the doc comment from inner to outer style -parse_invalid_attr_unsafe = `{$name}` is not an unsafe attribute - .label = this is not an unsafe attribute - .suggestion = remove the `unsafe(...)` - .note = extraneous unsafe is not allowed in attributes - parse_invalid_block_macro_segment = cannot use a `block` macro fragment here .label = the `block` fragment is within this context .suggestion = wrap this in another block @@ -468,9 +477,6 @@ parse_invalid_dyn_keyword = invalid `dyn` keyword parse_invalid_expression_in_let_else = a `{$operator}` expression cannot be directly assigned in `let...else` parse_invalid_identifier_with_leading_number = identifiers cannot start with a number -parse_invalid_label = - invalid label name `{$name}` - parse_invalid_literal_suffix_on_tuple_index = suffixes on a tuple index are invalid .label = invalid suffix `{$suffix}` .tuple_exception_line_1 = `{$suffix}` is *temporarily* accepted on tuple index fields as it was incorrectly accepted on stable for a few releases @@ -500,6 +506,8 @@ parse_invalid_unicode_escape = invalid unicode character escape parse_invalid_variable_declaration = invalid variable declaration +parse_keyword_label = labels cannot use keyword names + parse_keyword_lifetime = lifetimes cannot use keyword names @@ -601,7 +609,6 @@ parse_maybe_report_ambiguous_plus = ambiguous `+` in a type .suggestion = use parentheses to disambiguate -parse_meta_bad_delim = wrong meta list delimiters parse_meta_bad_delim_suggestion = the delimiters should be `(` and `)` parse_mismatched_closing_delimiter = mismatched closing delimiter: `{$delimiter}` @@ -748,9 +755,6 @@ parse_parentheses_with_struct_fields = invalid `struct` delimiters or `fn` call .suggestion_braces_for_struct = if `{$type}` is a struct, use braces as delimiters .suggestion_no_fields_for_fn = if `{$type}` is a function, use the arguments directly -parse_parenthesized_lifetime = parenthesized lifetime bounds are not supported -parse_parenthesized_lifetime_suggestion = remove the parentheses - parse_path_double_colon = path separator must be a double colon .suggestion = use a double colon instead @@ -993,10 +997,6 @@ parse_unmatched_angle_brackets = {$num_extra_brackets -> *[other] remove extra angle brackets } -parse_unsafe_attr_outside_unsafe = unsafe attribute used without unsafe - .label = usage of unsafe attribute -parse_unsafe_attr_outside_unsafe_suggestion = wrap the attribute in `unsafe(...)` - parse_unskipped_whitespace = whitespace symbol '{$ch}' is not skipped .label = {parse_unskipped_whitespace} diff --git a/compiler/rustc_parse/src/errors.rs b/compiler/rustc_parse/src/errors.rs index a105dd1909e..797d4830c2f 100644 --- a/compiler/rustc_parse/src/errors.rs +++ b/compiler/rustc_parse/src/errors.rs @@ -8,8 +8,9 @@ use rustc_ast::{Path, Visibility}; use rustc_errors::codes::*; use rustc_errors::{ Applicability, Diag, DiagCtxtHandle, Diagnostic, EmissionGuarantee, Level, Subdiagnostic, + SuggestionStyle, }; -use rustc_macros::{Diagnostic, Subdiagnostic}; +use rustc_macros::{Diagnostic, LintDiagnostic, Subdiagnostic}; use rustc_session::errors::ExprParenthesesNeeded; use rustc_span::edition::{Edition, LATEST_STABLE_EDITION}; use rustc_span::{Ident, Span, Symbol}; @@ -2228,11 +2229,10 @@ pub(crate) struct KeywordLifetime { } #[derive(Diagnostic)] -#[diag(parse_invalid_label)] -pub(crate) struct InvalidLabel { +#[diag(parse_keyword_label)] +pub(crate) struct KeywordLabel { #[primary_span] pub span: Span, - pub name: Symbol, } #[derive(Diagnostic)] @@ -3163,27 +3163,6 @@ pub(crate) struct ModifierLifetime { pub modifier: &'static str, } -#[derive(Subdiagnostic)] -#[multipart_suggestion( - parse_parenthesized_lifetime_suggestion, - applicability = "machine-applicable" -)] -pub(crate) struct RemoveParens { - #[suggestion_part(code = "")] - pub lo: Span, - #[suggestion_part(code = "")] - pub hi: Span, -} - -#[derive(Diagnostic)] -#[diag(parse_parenthesized_lifetime)] -pub(crate) struct ParenthesizedLifetime { - #[primary_span] - pub span: Span, - #[subdiagnostic] - pub sugg: RemoveParens, -} - #[derive(Diagnostic)] #[diag(parse_underscore_literal_suffix)] pub(crate) struct UnderscoreLiteralSuffix { @@ -3367,15 +3346,6 @@ pub(crate) struct KwBadCase<'a> { } #[derive(Diagnostic)] -#[diag(parse_meta_bad_delim)] -pub(crate) struct MetaBadDelim { - #[primary_span] - pub span: Span, - #[subdiagnostic] - pub sugg: MetaBadDelimSugg, -} - -#[derive(Diagnostic)] #[diag(parse_cfg_attr_bad_delim)] pub(crate) struct CfgAttrBadDelim { #[primary_span] @@ -3515,38 +3485,6 @@ pub(crate) struct DotDotRangeAttribute { } #[derive(Diagnostic)] -#[diag(parse_invalid_attr_unsafe)] -#[note] -pub(crate) struct InvalidAttrUnsafe { - #[primary_span] - #[label] - pub span: Span, - pub name: Path, -} - -#[derive(Diagnostic)] -#[diag(parse_unsafe_attr_outside_unsafe)] -pub(crate) struct UnsafeAttrOutsideUnsafe { - #[primary_span] - #[label] - pub span: Span, - #[subdiagnostic] - pub suggestion: UnsafeAttrOutsideUnsafeSuggestion, -} - -#[derive(Subdiagnostic)] -#[multipart_suggestion( - parse_unsafe_attr_outside_unsafe_suggestion, - applicability = "machine-applicable" -)] -pub(crate) struct UnsafeAttrOutsideUnsafeSuggestion { - #[suggestion_part(code = "unsafe(")] - pub left: Span, - #[suggestion_part(code = ")")] - pub right: Span, -} - -#[derive(Diagnostic)] #[diag(parse_binder_before_modifiers)] pub(crate) struct BinderBeforeModifiers { #[primary_span] @@ -3664,3 +3602,76 @@ pub(crate) struct ExpectedRegisterClassOrExplicitRegister { #[primary_span] pub(crate) span: Span, } + +#[derive(LintDiagnostic)] +#[diag(parse_hidden_unicode_codepoints)] +#[note] +pub(crate) struct HiddenUnicodeCodepointsDiag { + pub label: String, + pub count: usize, + #[label] + pub span_label: Span, + #[subdiagnostic] + pub labels: Option<HiddenUnicodeCodepointsDiagLabels>, + #[subdiagnostic] + pub sub: HiddenUnicodeCodepointsDiagSub, +} + +pub(crate) struct HiddenUnicodeCodepointsDiagLabels { + pub spans: Vec<(char, Span)>, +} + +impl Subdiagnostic for HiddenUnicodeCodepointsDiagLabels { + fn add_to_diag<G: EmissionGuarantee>(self, diag: &mut Diag<'_, G>) { + for (c, span) in self.spans { + diag.span_label(span, format!("{c:?}")); + } + } +} + +pub(crate) enum HiddenUnicodeCodepointsDiagSub { + Escape { spans: Vec<(char, Span)> }, + NoEscape { spans: Vec<(char, Span)> }, +} + +// Used because of multiple multipart_suggestion and note +impl Subdiagnostic for HiddenUnicodeCodepointsDiagSub { + fn add_to_diag<G: EmissionGuarantee>(self, diag: &mut Diag<'_, G>) { + match self { + HiddenUnicodeCodepointsDiagSub::Escape { spans } => { + diag.multipart_suggestion_with_style( + fluent::parse_suggestion_remove, + spans.iter().map(|(_, span)| (*span, "".to_string())).collect(), + Applicability::MachineApplicable, + SuggestionStyle::HideCodeAlways, + ); + diag.multipart_suggestion( + fluent::parse_suggestion_escape, + spans + .into_iter() + .map(|(c, span)| { + let c = format!("{c:?}"); + (span, c[1..c.len() - 1].to_string()) + }) + .collect(), + Applicability::MachineApplicable, + ); + } + HiddenUnicodeCodepointsDiagSub::NoEscape { spans } => { + // FIXME: in other suggestions we've reversed the inner spans of doc comments. We + // should do the same here to provide the same good suggestions as we do for + // literals above. + diag.arg( + "escaped", + spans + .into_iter() + .map(|(c, _)| format!("{c:?}")) + .collect::<Vec<String>>() + .join(", "), + ); + diag.note(fluent::parse_suggestion_remove); + diag.note(fluent::parse_no_suggestion_note_escape); + } + } + } +} diff --git a/compiler/rustc_parse/src/lexer/mod.rs b/compiler/rustc_parse/src/lexer/mod.rs index 85af5a615ae..9792240a548 100644 --- a/compiler/rustc_parse/src/lexer/mod.rs +++ b/compiler/rustc_parse/src/lexer/mod.rs @@ -49,6 +49,7 @@ pub(crate) fn lex_token_trees<'psess, 'src>( mut src: &'src str, mut start_pos: BytePos, override_span: Option<Span>, + frontmatter_allowed: FrontmatterAllowed, ) -> Result<TokenStream, Vec<Diag<'psess>>> { // Skip `#!`, if present. if let Some(shebang_len) = rustc_lexer::strip_shebang(src) { @@ -56,7 +57,7 @@ pub(crate) fn lex_token_trees<'psess, 'src>( start_pos = start_pos + BytePos::from_usize(shebang_len); } - let cursor = Cursor::new(src, FrontmatterAllowed::Yes); + let cursor = Cursor::new(src, frontmatter_allowed); let mut lexer = Lexer { psess, start_pos, @@ -542,21 +543,21 @@ impl<'psess, 'src> Lexer<'psess, 'src> { }) .collect(); + let label = label.to_string(); let count = spans.len(); - let labels = point_at_inner_spans.then_some(spans.clone()); + let labels = point_at_inner_spans + .then_some(errors::HiddenUnicodeCodepointsDiagLabels { spans: spans.clone() }); + let sub = if point_at_inner_spans && !spans.is_empty() { + errors::HiddenUnicodeCodepointsDiagSub::Escape { spans } + } else { + errors::HiddenUnicodeCodepointsDiagSub::NoEscape { spans } + }; self.psess.buffer_lint( TEXT_DIRECTION_CODEPOINT_IN_LITERAL, span, ast::CRATE_NODE_ID, - BuiltinLintDiag::HiddenUnicodeCodepoints { - label: label.to_string(), - count, - span_label: span, - labels, - escape: point_at_inner_spans && !spans.is_empty(), - spans, - }, + errors::HiddenUnicodeCodepointsDiag { label, count, span_label: span, labels, sub }, ); } diff --git a/compiler/rustc_parse/src/lib.rs b/compiler/rustc_parse/src/lib.rs index 2050c5f9608..48289b2e8ab 100644 --- a/compiler/rustc_parse/src/lib.rs +++ b/compiler/rustc_parse/src/lib.rs @@ -16,10 +16,11 @@ use std::str::Utf8Error; use std::sync::Arc; use rustc_ast as ast; -use rustc_ast::tokenstream::TokenStream; +use rustc_ast::tokenstream::{DelimSpan, TokenStream}; use rustc_ast::{AttrItem, Attribute, MetaItemInner, token}; use rustc_ast_pretty::pprust; use rustc_errors::{Diag, EmissionGuarantee, FatalError, PResult, pluralize}; +use rustc_lexer::FrontmatterAllowed; use rustc_session::parse::ParseSess; use rustc_span::source_map::SourceMap; use rustc_span::{FileName, SourceFile, Span}; @@ -30,8 +31,9 @@ pub const MACRO_ARGUMENTS: Option<&str> = Some("macro arguments"); #[macro_use] pub mod parser; use parser::Parser; +use rustc_ast::token::Delimiter; + pub mod lexer; -pub mod validate_attr; mod errors; @@ -146,7 +148,7 @@ fn new_parser_from_source_file( source_file: Arc<SourceFile>, ) -> Result<Parser<'_>, Vec<Diag<'_>>> { let end_pos = source_file.end_position(); - let stream = source_file_to_stream(psess, source_file, None)?; + let stream = source_file_to_stream(psess, source_file, None, FrontmatterAllowed::Yes)?; let mut parser = Parser::new(psess, stream, None); if parser.token == token::Eof { parser.token.span = Span::new(end_pos, end_pos, parser.token.span.ctxt(), None); @@ -161,7 +163,9 @@ pub fn source_str_to_stream( override_span: Option<Span>, ) -> Result<TokenStream, Vec<Diag<'_>>> { let source_file = psess.source_map().new_source_file(name, source); - source_file_to_stream(psess, source_file, override_span) + // used mainly for `proc_macro` and the likes, not for our parsing purposes, so don't parse + // frontmatters as frontmatters. + source_file_to_stream(psess, source_file, override_span, FrontmatterAllowed::No) } /// Given a source file, produces a sequence of token trees. Returns any buffered errors from @@ -170,6 +174,7 @@ fn source_file_to_stream<'psess>( psess: &'psess ParseSess, source_file: Arc<SourceFile>, override_span: Option<Span>, + frontmatter_allowed: FrontmatterAllowed, ) -> Result<TokenStream, Vec<Diag<'psess>>> { let src = source_file.src.as_ref().unwrap_or_else(|| { psess.dcx().bug(format!( @@ -178,7 +183,13 @@ fn source_file_to_stream<'psess>( )); }); - lexer::lex_token_trees(psess, src.as_str(), source_file.start_pos, override_span) + lexer::lex_token_trees( + psess, + src.as_str(), + source_file.start_pos, + override_span, + frontmatter_allowed, + ) } /// Runs the given subparser `f` on the tokens of the given `attr`'s item. @@ -225,7 +236,7 @@ pub fn parse_cfg_attr( ast::AttrArgs::Delimited(ast::DelimArgs { dspan, delim, ref tokens }) if !tokens.is_empty() => { - crate::validate_attr::check_cfg_attr_bad_delim(psess, dspan, delim); + check_cfg_attr_bad_delim(psess, dspan, delim); match parse_in(psess, tokens.clone(), "`cfg_attr` input", |p| p.parse_cfg_attr()) { Ok(r) => return Some(r), Err(e) => { @@ -244,3 +255,13 @@ pub fn parse_cfg_attr( } None } + +fn check_cfg_attr_bad_delim(psess: &ParseSess, span: DelimSpan, delim: Delimiter) { + if let Delimiter::Parenthesis = delim { + return; + } + psess.dcx().emit_err(errors::CfgAttrBadDelim { + span: span.entire(), + sugg: errors::MetaBadDelimSugg { open: span.open, close: span.close }, + }); +} diff --git a/compiler/rustc_parse/src/parser/attr.rs b/compiler/rustc_parse/src/parser/attr.rs index 7f6afeba28c..acd338156ce 100644 --- a/compiler/rustc_parse/src/parser/attr.rs +++ b/compiler/rustc_parse/src/parser/attr.rs @@ -399,7 +399,7 @@ impl<'a> Parser<'a> { } /// Matches `COMMASEP(meta_item_inner)`. - pub(crate) fn parse_meta_seq_top(&mut self) -> PResult<'a, ThinVec<ast::MetaItemInner>> { + pub fn parse_meta_seq_top(&mut self) -> PResult<'a, ThinVec<ast::MetaItemInner>> { // Presumably, the majority of the time there will only be one attr. let mut nmis = ThinVec::with_capacity(1); while self.token != token::Eof { diff --git a/compiler/rustc_parse/src/parser/diagnostics.rs b/compiler/rustc_parse/src/parser/diagnostics.rs index 220e4ac18fc..a28af7833c3 100644 --- a/compiler/rustc_parse/src/parser/diagnostics.rs +++ b/compiler/rustc_parse/src/parser/diagnostics.rs @@ -463,8 +463,8 @@ impl<'a> Parser<'a> { pub(super) fn expected_one_of_not_found( &mut self, - edible: &[ExpTokenPair<'_>], - inedible: &[ExpTokenPair<'_>], + edible: &[ExpTokenPair], + inedible: &[ExpTokenPair], ) -> PResult<'a, ErrorGuaranteed> { debug!("expected_one_of_not_found(edible: {:?}, inedible: {:?})", edible, inedible); fn tokens_to_string(tokens: &[TokenType]) -> String { @@ -1092,7 +1092,7 @@ impl<'a> Parser<'a> { /// Eats and discards tokens until one of `closes` is encountered. Respects token trees, /// passes through any errors encountered. Used for error recovery. - pub(super) fn eat_to_tokens(&mut self, closes: &[ExpTokenPair<'_>]) { + pub(super) fn eat_to_tokens(&mut self, closes: &[ExpTokenPair]) { if let Err(err) = self .parse_seq_to_before_tokens(closes, &[], SeqSep::none(), |p| Ok(p.parse_token_tree())) { @@ -1113,7 +1113,7 @@ impl<'a> Parser<'a> { pub(super) fn check_trailing_angle_brackets( &mut self, segment: &PathSegment, - end: &[ExpTokenPair<'_>], + end: &[ExpTokenPair], ) -> Option<ErrorGuaranteed> { if !self.may_recover() { return None; @@ -1196,7 +1196,7 @@ impl<'a> Parser<'a> { // second case. if self.look_ahead(position, |t| { trace!("check_trailing_angle_brackets: t={:?}", t); - end.iter().any(|exp| exp.tok == &t.kind) + end.iter().any(|exp| exp.tok == t.kind) }) { // Eat from where we started until the end token so that parsing can continue // as if we didn't have those extra angle brackets. @@ -2120,8 +2120,8 @@ impl<'a> Parser<'a> { pub(super) fn recover_seq_parse_error( &mut self, - open: ExpTokenPair<'_>, - close: ExpTokenPair<'_>, + open: ExpTokenPair, + close: ExpTokenPair, lo: Span, err: Diag<'a>, ) -> Box<Expr> { @@ -2386,8 +2386,8 @@ impl<'a> Parser<'a> { pub(super) fn consume_block( &mut self, - open: ExpTokenPair<'_>, - close: ExpTokenPair<'_>, + open: ExpTokenPair, + close: ExpTokenPair, consume_close: ConsumeClosingDelim, ) { let mut brace_depth = 0; diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index d0604f76317..f0f58e901a9 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -1598,7 +1598,7 @@ impl<'a> Parser<'a> { self.maybe_recover_from_bad_qpath(expr) } - fn parse_expr_array_or_repeat(&mut self, close: ExpTokenPair<'_>) -> PResult<'a, Box<Expr>> { + fn parse_expr_array_or_repeat(&mut self, close: ExpTokenPair) -> PResult<'a, Box<Expr>> { let lo = self.token.span; self.bump(); // `[` or other open delim @@ -2077,7 +2077,7 @@ impl<'a> Parser<'a> { (token::Lit { symbol: name, suffix: None, kind: token::Char }, span) } - fn mk_meta_item_lit_char(name: Symbol, span: Span) -> MetaItemLit { + pub fn mk_meta_item_lit_char(name: Symbol, span: Span) -> MetaItemLit { ast::MetaItemLit { symbol: name, suffix: None, @@ -2086,7 +2086,7 @@ impl<'a> Parser<'a> { } } - fn handle_missing_lit<L>( + pub fn handle_missing_lit<L>( &mut self, mk_lit_char: impl FnOnce(Symbol, Span) -> L, ) -> PResult<'a, L> { @@ -2156,7 +2156,7 @@ impl<'a> Parser<'a> { /// Keep this in sync with `Token::can_begin_literal_maybe_minus` and /// `Lit::from_token` (excluding unary negation). - fn eat_token_lit(&mut self) -> Option<token::Lit> { + pub fn eat_token_lit(&mut self) -> Option<token::Lit> { let check_expr = |expr: Box<Expr>| { if let ast::ExprKind::Lit(token_lit) = expr.kind { Some(token_lit) @@ -2397,20 +2397,24 @@ impl<'a> Parser<'a> { let before = self.prev_token; let binder = if self.check_keyword(exp!(For)) { let lo = self.token.span; - let (lifetime_defs, _) = self.parse_late_bound_lifetime_defs()?; + let (bound_vars, _) = self.parse_higher_ranked_binder()?; let span = lo.to(self.prev_token.span); self.psess.gated_spans.gate(sym::closure_lifetime_binder, span); - ClosureBinder::For { span, generic_params: lifetime_defs } + ClosureBinder::For { span, generic_params: bound_vars } } else { ClosureBinder::NotPresent }; let constness = self.parse_closure_constness(); - let movability = - if self.eat_keyword(exp!(Static)) { Movability::Static } else { Movability::Movable }; + let movability = if self.eat_keyword(exp!(Static)) { + self.psess.gated_spans.gate(sym::coroutines, self.prev_token.span); + Movability::Static + } else { + Movability::Movable + }; let coroutine_kind = if self.token_uninterpolated_span().at_least_rust_2018() { self.parse_coroutine_kind(Case::Sensitive) @@ -3090,7 +3094,7 @@ impl<'a> Parser<'a> { if let Some((ident, is_raw)) = self.token.lifetime() { // Disallow `'fn`, but with a better error message than `expect_lifetime`. if matches!(is_raw, IdentIsRaw::No) && ident.without_first_quote().is_reserved() { - self.dcx().emit_err(errors::InvalidLabel { span: ident.span, name: ident.name }); + self.dcx().emit_err(errors::KeywordLabel { span: ident.span }); } self.bump(); @@ -3657,7 +3661,7 @@ impl<'a> Parser<'a> { &mut self, pth: ast::Path, recover: bool, - close: ExpTokenPair<'_>, + close: ExpTokenPair, ) -> PResult< 'a, ( @@ -3676,8 +3680,8 @@ impl<'a> Parser<'a> { errors::HelpUseLatestEdition::new().add_to_diag(e); }; - while self.token != *close.tok { - if self.eat(exp!(DotDot)) || self.recover_struct_field_dots(close.tok) { + while self.token != close.tok { + if self.eat(exp!(DotDot)) || self.recover_struct_field_dots(&close.tok) { let exp_span = self.prev_token.span; // We permit `.. }` on the left-hand side of a destructuring assignment. if self.check(close) { diff --git a/compiler/rustc_parse/src/parser/generics.rs b/compiler/rustc_parse/src/parser/generics.rs index 4a8530a2b38..eb684c3a62f 100644 --- a/compiler/rustc_parse/src/parser/generics.rs +++ b/compiler/rustc_parse/src/parser/generics.rs @@ -172,8 +172,11 @@ impl<'a> Parser<'a> { }) } - /// Parses a (possibly empty) list of lifetime and type parameters, possibly including - /// a trailing comma and erroneous trailing attributes. + /// Parse a (possibly empty) list of generic (lifetime, type, const) parameters. + /// + /// ```ebnf + /// GenericParams = (GenericParam ("," GenericParam)* ","?)? + /// ``` pub(super) fn parse_generic_params(&mut self) -> PResult<'a, ThinVec<ast::GenericParam>> { let mut params = ThinVec::new(); let mut done = false; @@ -520,7 +523,7 @@ impl<'a> Parser<'a> { // * `for<'a> Trait1<'a>: Trait2<'a /* ok */>` // * `(for<'a> Trait1<'a>): Trait2<'a /* not ok */>` // * `for<'a> for<'b> Trait1<'a, 'b>: Trait2<'a /* ok */, 'b /* not ok */>` - let (lifetime_defs, _) = self.parse_late_bound_lifetime_defs()?; + let (bound_vars, _) = self.parse_higher_ranked_binder()?; // Parse type with mandatory colon and (possibly empty) bounds, // or with mandatory equality sign and the second type. @@ -528,7 +531,7 @@ impl<'a> Parser<'a> { if self.eat(exp!(Colon)) { let bounds = self.parse_generic_bounds()?; Ok(ast::WherePredicateKind::BoundPredicate(ast::WhereBoundPredicate { - bound_generic_params: lifetime_defs, + bound_generic_params: bound_vars, bounded_ty: ty, bounds, })) diff --git a/compiler/rustc_parse/src/parser/item.rs b/compiler/rustc_parse/src/parser/item.rs index ca89eb1e2cf..eb264f59fed 100644 --- a/compiler/rustc_parse/src/parser/item.rs +++ b/compiler/rustc_parse/src/parser/item.rs @@ -43,7 +43,7 @@ impl<'a> Parser<'a> { self.expect(exp!(OpenBrace))?; let (inner_attrs, items, inner_span) = self.parse_mod(exp!(CloseBrace))?; attrs.extend(inner_attrs); - ModKind::Loaded(items, Inline::Yes, inner_span, Ok(())) + ModKind::Loaded(items, Inline::Yes, inner_span) }; Ok(ItemKind::Mod(safety, ident, mod_kind)) } @@ -54,7 +54,7 @@ impl<'a> Parser<'a> { /// - `}` for mod items pub fn parse_mod( &mut self, - term: ExpTokenPair<'_>, + term: ExpTokenPair, ) -> PResult<'a, (AttrVec, ThinVec<Box<Item>>, ModSpans)> { let lo = self.token.span; let attrs = self.parse_inner_attributes()?; @@ -1201,7 +1201,7 @@ impl<'a> Parser<'a> { }?; let dash = exp!(Minus); - if self.token != *dash.tok { + if self.token != dash.tok { return Ok(ident); } diff --git a/compiler/rustc_parse/src/parser/mod.rs b/compiler/rustc_parse/src/parser/mod.rs index 41ed1f95a01..15598f32429 100644 --- a/compiler/rustc_parse/src/parser/mod.rs +++ b/compiler/rustc_parse/src/parser/mod.rs @@ -24,7 +24,7 @@ pub use diagnostics::AttemptLocalParseRecovery; pub(crate) use expr::ForbiddenLetReason; pub(crate) use item::{FnContext, FnParseMode}; pub use pat::{CommaRecoveryMode, RecoverColon, RecoverComma}; -use path::PathStyle; +pub use path::PathStyle; use rustc_ast::token::{ self, IdentIsRaw, InvisibleOrigin, MetaVarKind, NtExprKind, NtPatKind, Token, TokenKind, }; @@ -261,19 +261,19 @@ struct CaptureState { /// A sequence separator. #[derive(Debug)] -struct SeqSep<'a> { +struct SeqSep { /// The separator token. - sep: Option<ExpTokenPair<'a>>, + sep: Option<ExpTokenPair>, /// `true` if a trailing separator is allowed. trailing_sep_allowed: bool, } -impl<'a> SeqSep<'a> { - fn trailing_allowed(sep: ExpTokenPair<'a>) -> SeqSep<'a> { +impl SeqSep { + fn trailing_allowed(sep: ExpTokenPair) -> SeqSep { SeqSep { sep: Some(sep), trailing_sep_allowed: true } } - fn none() -> SeqSep<'a> { + fn none() -> SeqSep { SeqSep { sep: None, trailing_sep_allowed: false } } } @@ -285,7 +285,7 @@ pub enum FollowedByType { } #[derive(Copy, Clone, Debug)] -enum Trailing { +pub enum Trailing { No, Yes, } @@ -425,13 +425,13 @@ impl<'a> Parser<'a> { } /// Expects and consumes the token `t`. Signals an error if the next token is not `t`. - pub fn expect(&mut self, exp: ExpTokenPair<'_>) -> PResult<'a, Recovered> { + pub fn expect(&mut self, exp: ExpTokenPair) -> PResult<'a, Recovered> { if self.expected_token_types.is_empty() { - if self.token == *exp.tok { + if self.token == exp.tok { self.bump(); Ok(Recovered::No) } else { - self.unexpected_try_recover(exp.tok) + self.unexpected_try_recover(&exp.tok) } } else { self.expect_one_of(slice::from_ref(&exp), &[]) @@ -443,13 +443,13 @@ impl<'a> Parser<'a> { /// anything. Signal a fatal error if next token is unexpected. fn expect_one_of( &mut self, - edible: &[ExpTokenPair<'_>], - inedible: &[ExpTokenPair<'_>], + edible: &[ExpTokenPair], + inedible: &[ExpTokenPair], ) -> PResult<'a, Recovered> { - if edible.iter().any(|exp| exp.tok == &self.token.kind) { + if edible.iter().any(|exp| exp.tok == self.token.kind) { self.bump(); Ok(Recovered::No) - } else if inedible.iter().any(|exp| exp.tok == &self.token.kind) { + } else if inedible.iter().any(|exp| exp.tok == self.token.kind) { // leave it in the input Ok(Recovered::No) } else if self.token != token::Eof @@ -494,8 +494,8 @@ impl<'a> Parser<'a> { /// This method will automatically add `tok` to `expected_token_types` if `tok` is not /// encountered. #[inline] - fn check(&mut self, exp: ExpTokenPair<'_>) -> bool { - let is_present = self.token == *exp.tok; + pub fn check(&mut self, exp: ExpTokenPair) -> bool { + let is_present = self.token == exp.tok; if !is_present { self.expected_token_types.insert(exp.token_type); } @@ -542,7 +542,7 @@ impl<'a> Parser<'a> { /// Consumes a token 'tok' if it exists. Returns whether the given token was present. #[inline] #[must_use] - pub fn eat(&mut self, exp: ExpTokenPair<'_>) -> bool { + pub fn eat(&mut self, exp: ExpTokenPair) -> bool { let is_present = self.check(exp); if is_present { self.bump() @@ -633,7 +633,7 @@ impl<'a> Parser<'a> { } /// Consume a sequence produced by a metavar expansion, if present. - fn eat_metavar_seq<T>( + pub fn eat_metavar_seq<T>( &mut self, mv_kind: MetaVarKind, f: impl FnMut(&mut Parser<'a>) -> PResult<'a, T>, @@ -745,13 +745,13 @@ impl<'a> Parser<'a> { /// Eats the expected token if it's present possibly breaking /// compound tokens like multi-character operators in process. /// Returns `true` if the token was eaten. - fn break_and_eat(&mut self, exp: ExpTokenPair<'_>) -> bool { - if self.token == *exp.tok { + fn break_and_eat(&mut self, exp: ExpTokenPair) -> bool { + if self.token == exp.tok { self.bump(); return true; } match self.token.kind.break_two_token_op(1) { - Some((first, second)) if first == *exp.tok => { + Some((first, second)) if first == exp.tok => { let first_span = self.psess.source_map().start_point(self.token.span); let second_span = self.token.span.with_lo(first_span.hi()); self.token = Token::new(first, first_span); @@ -826,7 +826,7 @@ impl<'a> Parser<'a> { /// Checks if the next token is contained within `closes`, and returns `true` if so. fn expect_any_with_type( &mut self, - closes_expected: &[ExpTokenPair<'_>], + closes_expected: &[ExpTokenPair], closes_not_expected: &[&TokenKind], ) -> bool { closes_expected.iter().any(|&close| self.check(close)) @@ -838,9 +838,9 @@ impl<'a> Parser<'a> { /// closing bracket. fn parse_seq_to_before_tokens<T>( &mut self, - closes_expected: &[ExpTokenPair<'_>], + closes_expected: &[ExpTokenPair], closes_not_expected: &[&TokenKind], - sep: SeqSep<'_>, + sep: SeqSep, mut f: impl FnMut(&mut Parser<'a>) -> PResult<'a, T>, ) -> PResult<'a, (ThinVec<T>, Trailing, Recovered)> { let mut first = true; @@ -869,7 +869,7 @@ impl<'a> Parser<'a> { } Err(mut expect_err) => { let sp = self.prev_token.span.shrink_to_hi(); - let token_str = pprust::token_kind_to_string(exp.tok); + let token_str = pprust::token_kind_to_string(&exp.tok); match self.current_closure.take() { Some(closure_spans) if self.token == TokenKind::Semi => { @@ -1039,8 +1039,8 @@ impl<'a> Parser<'a> { /// closing bracket. fn parse_seq_to_before_end<T>( &mut self, - close: ExpTokenPair<'_>, - sep: SeqSep<'_>, + close: ExpTokenPair, + sep: SeqSep, f: impl FnMut(&mut Parser<'a>) -> PResult<'a, T>, ) -> PResult<'a, (ThinVec<T>, Trailing, Recovered)> { self.parse_seq_to_before_tokens(&[close], &[], sep, f) @@ -1051,8 +1051,8 @@ impl<'a> Parser<'a> { /// closing bracket. fn parse_seq_to_end<T>( &mut self, - close: ExpTokenPair<'_>, - sep: SeqSep<'_>, + close: ExpTokenPair, + sep: SeqSep, f: impl FnMut(&mut Parser<'a>) -> PResult<'a, T>, ) -> PResult<'a, (ThinVec<T>, Trailing)> { let (val, trailing, recovered) = self.parse_seq_to_before_end(close, sep, f)?; @@ -1070,9 +1070,9 @@ impl<'a> Parser<'a> { /// closing bracket. fn parse_unspanned_seq<T>( &mut self, - open: ExpTokenPair<'_>, - close: ExpTokenPair<'_>, - sep: SeqSep<'_>, + open: ExpTokenPair, + close: ExpTokenPair, + sep: SeqSep, f: impl FnMut(&mut Parser<'a>) -> PResult<'a, T>, ) -> PResult<'a, (ThinVec<T>, Trailing)> { self.expect(open)?; @@ -1084,8 +1084,8 @@ impl<'a> Parser<'a> { /// closing bracket. fn parse_delim_comma_seq<T>( &mut self, - open: ExpTokenPair<'_>, - close: ExpTokenPair<'_>, + open: ExpTokenPair, + close: ExpTokenPair, f: impl FnMut(&mut Parser<'a>) -> PResult<'a, T>, ) -> PResult<'a, (ThinVec<T>, Trailing)> { self.parse_unspanned_seq(open, close, SeqSep::trailing_allowed(exp!(Comma)), f) @@ -1094,7 +1094,7 @@ impl<'a> Parser<'a> { /// Parses a comma-separated sequence delimited by parentheses (e.g. `(x, y)`). /// The function `f` must consume tokens until reaching the next separator or /// closing bracket. - fn parse_paren_comma_seq<T>( + pub fn parse_paren_comma_seq<T>( &mut self, f: impl FnMut(&mut Parser<'a>) -> PResult<'a, T>, ) -> PResult<'a, (ThinVec<T>, Trailing)> { @@ -1355,7 +1355,8 @@ impl<'a> Parser<'a> { AttrArgs::Delimited(args) } else if self.eat(exp!(Eq)) { let eq_span = self.prev_token.span; - AttrArgs::Eq { eq_span, expr: self.parse_expr_force_collect()? } + let expr = self.parse_expr_force_collect()?; + AttrArgs::Eq { eq_span, expr } } else { AttrArgs::Empty }) @@ -1388,15 +1389,26 @@ impl<'a> Parser<'a> { // matching `CloseDelim` we are *after* the delimited sequence, // i.e. at depth `d - 1`. let target_depth = self.token_cursor.stack.len() - 1; - loop { - // Advance one token at a time, so `TokenCursor::next()` - // can capture these tokens if necessary. + + if let Capturing::No = self.capture_state.capturing { + // We are not capturing tokens, so skip to the end of the + // delimited sequence. This is a perf win when dealing with + // declarative macros that pass large `tt` fragments through + // multiple rules, as seen in the uom-0.37.0 crate. + self.token_cursor.curr.bump_to_end(); self.bump(); - if self.token_cursor.stack.len() == target_depth { - debug_assert!(self.token.kind.close_delim().is_some()); - break; + debug_assert_eq!(self.token_cursor.stack.len(), target_depth); + } else { + loop { + // Advance one token at a time, so `TokenCursor::next()` + // can capture these tokens if necessary. + self.bump(); + if self.token_cursor.stack.len() == target_depth { + break; + } } } + debug_assert!(self.token.kind.close_delim().is_some()); // Consume close delimiter self.bump(); diff --git a/compiler/rustc_parse/src/parser/path.rs b/compiler/rustc_parse/src/parser/path.rs index 37fc723cd89..86045648859 100644 --- a/compiler/rustc_parse/src/parser/path.rs +++ b/compiler/rustc_parse/src/parser/path.rs @@ -26,7 +26,7 @@ use crate::parser::{ /// Specifies how to parse a path. #[derive(Copy, Clone, PartialEq)] -pub(super) enum PathStyle { +pub enum PathStyle { /// In some contexts, notably in expressions, paths with generic arguments are ambiguous /// with something else. For example, in expressions `segment < ....` can be interpreted /// as a comparison and `segment ( ....` can be interpreted as a function call. @@ -150,7 +150,7 @@ impl<'a> Parser<'a> { true } - pub(super) fn parse_path(&mut self, style: PathStyle) -> PResult<'a, Path> { + pub fn parse_path(&mut self, style: PathStyle) -> PResult<'a, Path> { self.parse_path_inner(style, None) } diff --git a/compiler/rustc_parse/src/parser/token_type.rs b/compiler/rustc_parse/src/parser/token_type.rs index b91548196a3..bd4bb368df0 100644 --- a/compiler/rustc_parse/src/parser/token_type.rs +++ b/compiler/rustc_parse/src/parser/token_type.rs @@ -416,8 +416,8 @@ impl TokenType { /// is always by used those methods. The second field is only used when the /// first field doesn't match. #[derive(Clone, Copy, Debug)] -pub struct ExpTokenPair<'a> { - pub tok: &'a TokenKind, +pub struct ExpTokenPair { + pub tok: TokenKind, pub token_type: TokenType, } @@ -444,7 +444,7 @@ macro_rules! exp { // `ExpTokenPair` helper rules. (@tok, $tok:ident) => { $crate::parser::token_type::ExpTokenPair { - tok: &rustc_ast::token::$tok, + tok: rustc_ast::token::$tok, token_type: $crate::parser::token_type::TokenType::$tok } }; diff --git a/compiler/rustc_parse/src/parser/ty.rs b/compiler/rustc_parse/src/parser/ty.rs index 290f0a440af..6168647183f 100644 --- a/compiler/rustc_parse/src/parser/ty.rs +++ b/compiler/rustc_parse/src/parser/ty.rs @@ -137,14 +137,37 @@ impl<'a> Parser<'a> { /// The difference from `parse_ty` is that this version allows `...` /// (`CVarArgs`) at the top level of the type. pub(super) fn parse_ty_for_param(&mut self) -> PResult<'a, Box<Ty>> { - self.parse_ty_common( + let ty = self.parse_ty_common( AllowPlus::Yes, AllowCVariadic::Yes, RecoverQPath::Yes, RecoverReturnSign::Yes, None, RecoverQuestionMark::Yes, - ) + )?; + + // Recover a trailing `= EXPR` if present. + if self.may_recover() + && self.check_noexpect(&token::Eq) + && self.look_ahead(1, |tok| tok.can_begin_expr()) + { + let snapshot = self.create_snapshot_for_diagnostic(); + self.bump(); + let eq_span = self.prev_token.span; + match self.parse_expr() { + Ok(e) => { + self.dcx() + .struct_span_err(eq_span.to(e.span), "parameter defaults are not supported") + .emit(); + } + Err(diag) => { + diag.cancel(); + self.restore_snapshot(snapshot); + } + } + } + + Ok(ty) } /// Parses a type in restricted contexts where `+` is not permitted. @@ -308,11 +331,11 @@ impl<'a> Parser<'a> { // Function pointer type or bound list (trait object type) starting with a poly-trait. // `for<'lt> [unsafe] [extern "ABI"] fn (&'lt S) -> T` // `for<'lt> Trait1<'lt> + Trait2 + 'a` - let (lifetime_defs, _) = self.parse_late_bound_lifetime_defs()?; + let (bound_vars, _) = self.parse_higher_ranked_binder()?; if self.check_fn_front_matter(false, Case::Sensitive) { self.parse_ty_fn_ptr( lo, - lifetime_defs, + bound_vars, Some(self.prev_token.span.shrink_to_lo()), recover_return_sign, )? @@ -326,7 +349,7 @@ impl<'a> Parser<'a> { let path = self.parse_path(PathStyle::Type)?; let parse_plus = allow_plus == AllowPlus::Yes && self.check_plus(); let kind = self.parse_remaining_bounds_path( - lifetime_defs, + bound_vars, path, lo, parse_plus, @@ -359,7 +382,7 @@ impl<'a> Parser<'a> { let path = self.parse_path(PathStyle::Type)?; let parse_plus = allow_plus == AllowPlus::Yes && self.check_plus(); self.parse_remaining_bounds_path( - lifetime_defs, + bound_vars, path, lo, parse_plus, @@ -443,7 +466,7 @@ impl<'a> Parser<'a> { let ty = ts.into_iter().next().unwrap(); let maybe_bounds = allow_plus == AllowPlus::Yes && self.token.is_like_plus(); match ty.kind { - // `(TY_BOUND_NOPAREN) + BOUND + ...`. + // `"(" BareTraitBound ")" "+" Bound "+" ...`. TyKind::Path(None, path) if maybe_bounds => self.parse_remaining_bounds_path( ThinVec::new(), path, @@ -853,10 +876,13 @@ impl<'a> Parser<'a> { Ok(TyKind::ImplTrait(ast::DUMMY_NODE_ID, bounds)) } - fn parse_precise_capturing_args( - &mut self, - ) -> PResult<'a, (ThinVec<PreciseCapturingArg>, Span)> { - let lo = self.token.span; + /// Parse a use-bound aka precise capturing list. + /// + /// ```ebnf + /// UseBound = "use" "<" (PreciseCapture ("," PreciseCapture)* ","?)? ">" + /// PreciseCapture = "Self" | Ident | Lifetime + /// ``` + fn parse_use_bound(&mut self, lo: Span, parens: ast::Parens) -> PResult<'a, GenericBound> { self.expect_lt()?; let (args, _, _) = self.parse_seq_to_before_tokens( &[exp!(Gt)], @@ -882,7 +908,13 @@ impl<'a> Parser<'a> { }, )?; self.expect_gt()?; - Ok((args, lo.to(self.prev_token.span))) + + if let ast::Parens::Yes = parens { + self.expect(exp!(CloseParen))?; + self.report_parenthesized_bound(lo, self.prev_token.span, "precise capturing lists"); + } + + Ok(GenericBound::Use(args, lo.to(self.prev_token.span))) } /// Is a `dyn B0 + ... + Bn` type allowed here? @@ -940,9 +972,10 @@ impl<'a> Parser<'a> { self.parse_generic_bounds_common(AllowPlus::Yes) } - /// Parses bounds of a type parameter `BOUND + BOUND + ...`, possibly with trailing `+`. + /// Parse generic bounds. /// - /// See `parse_generic_bound` for the `BOUND` grammar. + /// Only if `allow_plus` this parses a `+`-separated list of bounds (trailing `+` is admitted). + /// Otherwise, this only parses a single bound or none. fn parse_generic_bounds_common(&mut self, allow_plus: AllowPlus) -> PResult<'a, GenericBounds> { let mut bounds = Vec::new(); @@ -988,48 +1021,56 @@ impl<'a> Parser<'a> { || self.check_keyword(exp!(Use)) } - /// Parses a bound according to the grammar: + /// Parse a bound. + /// /// ```ebnf - /// BOUND = TY_BOUND | LT_BOUND + /// Bound = LifetimeBound | UseBound | TraitBound /// ``` fn parse_generic_bound(&mut self) -> PResult<'a, GenericBound> { - let lo = self.token.span; let leading_token = self.prev_token; + let lo = self.token.span; + + // We only admit parenthesized *trait* bounds. However, we want to gracefully recover from + // other kinds of parenthesized bounds, so parse the opening parenthesis *here*. + // + // In the future we might want to lift this syntactic restriction and + // introduce "`GenericBound::Paren(Box<GenericBound>)`". let parens = if self.eat(exp!(OpenParen)) { ast::Parens::Yes } else { ast::Parens::No }; - let bound = if self.token.is_lifetime() { - self.parse_generic_lt_bound(lo, parens)? + if self.token.is_lifetime() { + self.parse_lifetime_bound(lo, parens) } else if self.eat_keyword(exp!(Use)) { - // parse precise captures, if any. This is `use<'lt, 'lt, P, P>`; a list of - // lifetimes and ident params (including SelfUpper). These are validated later - // for order, duplication, and whether they actually reference params. - let use_span = self.prev_token.span; - let (args, args_span) = self.parse_precise_capturing_args()?; - GenericBound::Use(args, use_span.to(args_span)) + self.parse_use_bound(lo, parens) } else { - self.parse_generic_ty_bound(lo, parens, &leading_token)? - }; - - Ok(bound) + self.parse_trait_bound(lo, parens, &leading_token) + } } - /// Parses a lifetime ("outlives") bound, e.g. `'a`, according to: + /// Parse a lifetime-bound aka outlives-bound. + /// /// ```ebnf - /// LT_BOUND = LIFETIME + /// LifetimeBound = Lifetime /// ``` - fn parse_generic_lt_bound( - &mut self, - lo: Span, - parens: ast::Parens, - ) -> PResult<'a, GenericBound> { + fn parse_lifetime_bound(&mut self, lo: Span, parens: ast::Parens) -> PResult<'a, GenericBound> { let lt = self.expect_lifetime(); - let bound = GenericBound::Outlives(lt); + if let ast::Parens::Yes = parens { - // FIXME(Centril): Consider not erroring here and accepting `('lt)` instead, - // possibly introducing `GenericBound::Paren(Box<GenericBound>)`? - self.recover_paren_lifetime(lo)?; + self.expect(exp!(CloseParen))?; + self.report_parenthesized_bound(lo, self.prev_token.span, "lifetime bounds"); } - Ok(bound) + + Ok(GenericBound::Outlives(lt)) + } + + fn report_parenthesized_bound(&self, lo: Span, hi: Span, kind: &str) -> ErrorGuaranteed { + let mut diag = + self.dcx().struct_span_err(lo.to(hi), format!("{kind} may not be parenthesized")); + diag.multipart_suggestion( + "remove the parentheses", + vec![(lo, String::new()), (hi, String::new())], + Applicability::MachineApplicable, + ); + diag.emit() } /// Emits an error if any trait bound modifiers were present. @@ -1074,27 +1115,17 @@ impl<'a> Parser<'a> { unreachable!("lifetime bound intercepted in `parse_generic_ty_bound` but no modifiers?") } - /// Recover on `('lifetime)` with `(` already eaten. - fn recover_paren_lifetime(&mut self, lo: Span) -> PResult<'a, ()> { - self.expect(exp!(CloseParen))?; - let span = lo.to(self.prev_token.span); - let sugg = errors::RemoveParens { lo, hi: self.prev_token.span }; - - self.dcx().emit_err(errors::ParenthesizedLifetime { span, sugg }); - Ok(()) - } - /// Parses the modifiers that may precede a trait in a bound, e.g. `?Trait` or `[const] Trait`. /// /// If no modifiers are present, this does not consume any tokens. /// /// ```ebnf - /// CONSTNESS = [["["] "const" ["]"]] - /// ASYNCNESS = ["async"] - /// POLARITY = ["?" | "!"] + /// Constness = ("const" | "[" "const" "]")? + /// Asyncness = "async"? + /// Polarity = ("?" | "!")? /// ``` /// - /// See `parse_generic_ty_bound` for the complete grammar of trait bound modifiers. + /// See `parse_trait_bound` for more context. fn parse_trait_bound_modifiers(&mut self) -> PResult<'a, TraitBoundModifiers> { let modifier_lo = self.token.span; let constness = self.parse_bound_constness()?; @@ -1187,20 +1218,21 @@ impl<'a> Parser<'a> { }) } - /// Parses a type bound according to: + /// Parse a trait bound. + /// /// ```ebnf - /// TY_BOUND = TY_BOUND_NOPAREN | (TY_BOUND_NOPAREN) - /// TY_BOUND_NOPAREN = [for<GENERIC_PARAMS> CONSTNESS ASYNCNESS | POLARITY] SIMPLE_PATH + /// TraitBound = BareTraitBound | "(" BareTraitBound ")" + /// BareTraitBound = + /// (HigherRankedBinder Constness Asyncness | Polarity) + /// TypePath /// ``` - /// - /// For example, this grammar accepts `for<'a: 'b> [const] ?m::Trait<'a>`. - fn parse_generic_ty_bound( + fn parse_trait_bound( &mut self, lo: Span, parens: ast::Parens, leading_token: &Token, ) -> PResult<'a, GenericBound> { - let (mut lifetime_defs, binder_span) = self.parse_late_bound_lifetime_defs()?; + let (mut bound_vars, binder_span) = self.parse_higher_ranked_binder()?; let modifiers_lo = self.token.span; let modifiers = self.parse_trait_bound_modifiers()?; @@ -1223,11 +1255,11 @@ impl<'a> Parser<'a> { // e.g. `T: for<'a> 'a` or `T: [const] 'a`. if self.token.is_lifetime() { let _: ErrorGuaranteed = self.error_lt_bound_with_modifiers(modifiers, binder_span); - return self.parse_generic_lt_bound(lo, parens); + return self.parse_lifetime_bound(lo, parens); } - if let (more_lifetime_defs, Some(binder_span)) = self.parse_late_bound_lifetime_defs()? { - lifetime_defs.extend(more_lifetime_defs); + if let (more_bound_vars, Some(binder_span)) = self.parse_higher_ranked_binder()? { + bound_vars.extend(more_bound_vars); self.dcx().emit_err(errors::BinderBeforeModifiers { binder_span, modifiers_span }); } @@ -1287,7 +1319,7 @@ impl<'a> Parser<'a> { }; if self.may_recover() && self.token == TokenKind::OpenParen { - self.recover_fn_trait_with_lifetime_params(&mut path, &mut lifetime_defs)?; + self.recover_fn_trait_with_lifetime_params(&mut path, &mut bound_vars)?; } if let ast::Parens::Yes = parens { @@ -1310,7 +1342,7 @@ impl<'a> Parser<'a> { } let poly_trait = - PolyTraitRef::new(lifetime_defs, path, modifiers, lo.to(self.prev_token.span), parens); + PolyTraitRef::new(bound_vars, path, modifiers, lo.to(self.prev_token.span), parens); Ok(GenericBound::Trait(poly_trait)) } @@ -1349,8 +1381,12 @@ impl<'a> Parser<'a> { } } - /// Optionally parses `for<$generic_params>`. - pub(super) fn parse_late_bound_lifetime_defs( + /// Parse an optional higher-ranked binder. + /// + /// ```ebnf + /// HigherRankedBinder = ("for" "<" GenericParams ">")? + /// ``` + pub(super) fn parse_higher_ranked_binder( &mut self, ) -> PResult<'a, (ThinVec<GenericParam>, Option<Span>)> { if self.eat_keyword(exp!(For)) { @@ -1466,8 +1502,7 @@ impl<'a> Parser<'a> { pub(super) fn expect_lifetime(&mut self) -> Lifetime { if let Some((ident, is_raw)) = self.token.lifetime() { if matches!(is_raw, IdentIsRaw::No) - && ident.without_first_quote().is_reserved() - && ![kw::UnderscoreLifetime, kw::StaticLifetime].contains(&ident.name) + && ident.without_first_quote().is_reserved_lifetime() { self.dcx().emit_err(errors::KeywordLifetime { span: ident.span }); } diff --git a/compiler/rustc_passes/messages.ftl b/compiler/rustc_passes/messages.ftl index 03096f205c6..00a41e31a02 100644 --- a/compiler/rustc_passes/messages.ftl +++ b/compiler/rustc_passes/messages.ftl @@ -432,10 +432,6 @@ passes_must_not_suspend = `must_not_suspend` attribute should be applied to a struct, enum, union, or trait .label = is not a struct, enum, union, or trait -passes_must_use_no_effect = - `#[must_use]` has no effect when applied to {$target} - .suggestion = remove the attribute - passes_no_link = attribute should be applied to an `extern crate` item .label = not an `extern crate` item diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs index c1a212d7ab5..7aef60b7b91 100644 --- a/compiler/rustc_passes/src/check_attr.rs +++ b/compiler/rustc_passes/src/check_attr.rs @@ -18,7 +18,7 @@ use rustc_feature::{ ACCEPTED_LANG_FEATURES, AttributeDuplicates, AttributeType, BUILTIN_ATTRIBUTE_MAP, BuiltinAttribute, }; -use rustc_hir::attrs::{AttributeKind, InlineAttr, MirDialect, MirPhase, ReprAttr}; +use rustc_hir::attrs::{AttributeKind, InlineAttr, MirDialect, MirPhase, ReprAttr, SanitizerSet}; use rustc_hir::def::DefKind; use rustc_hir::def_id::LocalModDefId; use rustc_hir::intravisit::{self, Visitor}; @@ -167,7 +167,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> { Attribute::Parsed(AttributeKind::Deprecation { .. }) => { self.check_deprecated(hir_id, attr, span, target) } - Attribute::Parsed(AttributeKind::TargetFeature(_, attr_span)) => { + Attribute::Parsed(AttributeKind::TargetFeature{ attr_span, ..}) => { self.check_target_feature(hir_id, *attr_span, target, attrs) } Attribute::Parsed(AttributeKind::RustcObjectLifetimeDefault) => { @@ -194,12 +194,12 @@ impl<'tcx> CheckAttrVisitor<'tcx> { Attribute::Parsed(AttributeKind::MayDangle(attr_span)) => { self.check_may_dangle(hir_id, *attr_span) } - Attribute::Parsed(AttributeKind::MustUse { span, .. }) => { - self.check_must_use(hir_id, *span, target) - } &Attribute::Parsed(AttributeKind::CustomMir(dialect, phase, attr_span)) => { self.check_custom_mir(dialect, phase, attr_span) } + &Attribute::Parsed(AttributeKind::Sanitize { on_set, off_set, span: attr_span}) => { + self.check_sanitize(attr_span, on_set | off_set, span, target); + }, Attribute::Parsed( AttributeKind::BodyStability { .. } | AttributeKind::ConstStabilityIndirect @@ -249,7 +249,9 @@ impl<'tcx> CheckAttrVisitor<'tcx> { | AttributeKind::Coverage (..) | AttributeKind::ShouldPanic { .. } | AttributeKind::Coroutine(..) - | AttributeKind::Linkage(..), + | AttributeKind::Linkage(..) + | AttributeKind::MustUse { .. } + | AttributeKind::CrateName { .. } ) => { /* do nothing */ } Attribute::Unparsed(attr_item) => { style = Some(attr_item.style); @@ -260,9 +262,6 @@ impl<'tcx> CheckAttrVisitor<'tcx> { [sym::diagnostic, sym::on_unimplemented, ..] => { self.check_diagnostic_on_unimplemented(attr.span(), hir_id, target) } - [sym::sanitize, ..] => { - self.check_sanitize(attr, span, target) - } [sym::thread_local, ..] => self.check_thread_local(attr, span, target), [sym::doc, ..] => self.check_doc_attrs( attr, @@ -369,22 +368,49 @@ impl<'tcx> CheckAttrVisitor<'tcx> { let builtin = attr.ident().and_then(|ident| BUILTIN_ATTRIBUTE_MAP.get(&ident.name)); if hir_id != CRATE_HIR_ID { - if let Some(BuiltinAttribute { type_: AttributeType::CrateLevel, .. }) = - attr.ident().and_then(|ident| BUILTIN_ATTRIBUTE_MAP.get(&ident.name)) - { - match style { - Some(ast::AttrStyle::Outer) => self.tcx.emit_node_span_lint( + match attr { + // FIXME(jdonszelmann) move to attribute parsing when validation gets better there + &Attribute::Parsed(AttributeKind::CrateName { + attr_span: span, style, .. + }) => match style { + ast::AttrStyle::Outer => self.tcx.emit_node_span_lint( UNUSED_ATTRIBUTES, hir_id, - attr.span(), + span, errors::OuterCrateLevelAttr, ), - Some(ast::AttrStyle::Inner) | None => self.tcx.emit_node_span_lint( + ast::AttrStyle::Inner => self.tcx.emit_node_span_lint( UNUSED_ATTRIBUTES, hir_id, - attr.span(), + span, errors::InnerCrateLevelAttr, ), + }, + Attribute::Parsed(_) => { /* not crate-level */ } + Attribute::Unparsed(attr) => { + // FIXME(jdonszelmann): remove once all crate-level attrs are parsed and caught by + // the above + if let Some(BuiltinAttribute { type_: AttributeType::CrateLevel, .. }) = + attr.path + .segments + .first() + .and_then(|ident| BUILTIN_ATTRIBUTE_MAP.get(&ident.name)) + { + match attr.style { + ast::AttrStyle::Outer => self.tcx.emit_node_span_lint( + UNUSED_ATTRIBUTES, + hir_id, + attr.span, + errors::OuterCrateLevelAttr, + ), + ast::AttrStyle::Inner => self.tcx.emit_node_span_lint( + UNUSED_ATTRIBUTES, + hir_id, + attr.span, + errors::InnerCrateLevelAttr, + ), + } + } } } } @@ -485,42 +511,48 @@ impl<'tcx> CheckAttrVisitor<'tcx> { /// Checks that the `#[sanitize(..)]` attribute is applied to a /// function/closure/method, or to an impl block or module. - fn check_sanitize(&self, attr: &Attribute, target_span: Span, target: Target) { + fn check_sanitize( + &self, + attr_span: Span, + set: SanitizerSet, + target_span: Span, + target: Target, + ) { let mut not_fn_impl_mod = None; let mut no_body = None; - if let Some(list) = attr.meta_item_list() { - for item in list.iter() { - let MetaItemInner::MetaItem(set) = item else { - return; - }; - let segments = set.path.segments.iter().map(|x| x.ident.name).collect::<Vec<_>>(); - match target { - Target::Fn - | Target::Closure - | Target::Method(MethodKind::Trait { body: true } | MethodKind::Inherent) - | Target::Impl { .. } - | Target::Mod => return, - Target::Static if matches!(segments.as_slice(), [sym::address]) => return, - - // These are "functions", but they aren't allowed because they don't - // have a body, so the usual explanation would be confusing. - Target::Method(MethodKind::Trait { body: false }) | Target::ForeignFn => { - no_body = Some(target_span); - } + match target { + Target::Fn + | Target::Closure + | Target::Method(MethodKind::Trait { body: true } | MethodKind::Inherent) + | Target::Impl { .. } + | Target::Mod => return, + Target::Static + // if we mask out the address bits, i.e. *only* address was set, + // we allow it + if set & !(SanitizerSet::ADDRESS | SanitizerSet::KERNELADDRESS) + == SanitizerSet::empty() => + { + return; + } - _ => { - not_fn_impl_mod = Some(target_span); - } - } + // These are "functions", but they aren't allowed because they don't + // have a body, so the usual explanation would be confusing. + Target::Method(MethodKind::Trait { body: false }) | Target::ForeignFn => { + no_body = Some(target_span); + } + + _ => { + not_fn_impl_mod = Some(target_span); } - self.dcx().emit_err(errors::SanitizeAttributeNotAllowed { - attr_span: attr.span(), - not_fn_impl_mod, - no_body, - help: (), - }); } + + self.dcx().emit_err(errors::SanitizeAttributeNotAllowed { + attr_span, + not_fn_impl_mod, + no_body, + help: (), + }); } /// Checks if `#[naked]` is applied to a function definition. @@ -1263,41 +1295,6 @@ impl<'tcx> CheckAttrVisitor<'tcx> { } } - /// Warns against some misuses of `#[must_use]` - fn check_must_use(&self, hir_id: HirId, attr_span: Span, target: Target) { - if matches!( - target, - Target::Fn - | Target::Enum - | Target::Struct - | Target::Union - | Target::Method(MethodKind::Trait { body: false } | MethodKind::Inherent) - | Target::ForeignFn - // `impl Trait` in return position can trip - // `unused_must_use` if `Trait` is marked as - // `#[must_use]` - | Target::Trait - ) { - return; - } - - // `#[must_use]` can be applied to a trait method definition with a default body - if let Target::Method(MethodKind::Trait { body: true }) = target - && let parent_def_id = self.tcx.hir_get_parent_item(hir_id).def_id - && let containing_item = self.tcx.hir_expect_item(parent_def_id) - && let hir::ItemKind::Trait(..) = containing_item.kind - { - return; - } - - self.tcx.emit_node_span_lint( - UNUSED_ATTRIBUTES, - hir_id, - attr_span, - errors::MustUseNoEffect { target: target.plural_name(), attr_span }, - ); - } - /// Checks if `#[must_not_suspend]` is applied to a struct, enum, union, or trait. fn check_must_not_suspend(&self, attr: &Attribute, span: Span, target: Target) { match target { diff --git a/compiler/rustc_passes/src/dead.rs b/compiler/rustc_passes/src/dead.rs index 08d06402000..10cd9df4816 100644 --- a/compiler/rustc_passes/src/dead.rs +++ b/compiler/rustc_passes/src/dead.rs @@ -8,7 +8,6 @@ use std::mem; use hir::def_id::{LocalDefIdMap, LocalDefIdSet}; use rustc_abi::FieldIdx; use rustc_data_structures::fx::FxIndexSet; -use rustc_data_structures::unord::UnordSet; use rustc_errors::MultiSpan; use rustc_hir::def::{CtorOf, DefKind, Res}; use rustc_hir::def_id::{DefId, LocalDefId, LocalModDefId}; @@ -79,7 +78,7 @@ struct MarkSymbolVisitor<'tcx> { worklist: Vec<(LocalDefId, ComesFromAllowExpect)>, tcx: TyCtxt<'tcx>, maybe_typeck_results: Option<&'tcx ty::TypeckResults<'tcx>>, - scanned: UnordSet<(LocalDefId, ComesFromAllowExpect)>, + scanned: LocalDefIdSet, live_symbols: LocalDefIdSet, repr_unconditionally_treats_fields_as_live: bool, repr_has_repr_simd: bool, @@ -321,18 +320,8 @@ impl<'tcx> MarkSymbolVisitor<'tcx> { fn mark_live_symbols(&mut self) { while let Some(work) = self.worklist.pop() { - if !self.scanned.insert(work) { - continue; - } - let (mut id, comes_from_allow_expect) = work; - // Avoid accessing the HIR for the synthesized associated type generated for RPITITs. - if self.tcx.is_impl_trait_in_trait(id.to_def_id()) { - self.live_symbols.insert(id); - continue; - } - // in the case of tuple struct constructors we want to check the item, // not the generated tuple struct constructor function if let DefKind::Ctor(..) = self.tcx.def_kind(id) { @@ -360,9 +349,23 @@ impl<'tcx> MarkSymbolVisitor<'tcx> { // this "duplication" is essential as otherwise a function with `#[expect]` // called from a `pub fn` may be falsely reported as not live, falsely // triggering the `unfulfilled_lint_expectations` lint. - if comes_from_allow_expect != ComesFromAllowExpect::Yes { + match comes_from_allow_expect { + ComesFromAllowExpect::Yes => {} + ComesFromAllowExpect::No => { + self.live_symbols.insert(id); + } + } + + if !self.scanned.insert(id) { + continue; + } + + // Avoid accessing the HIR for the synthesized associated type generated for RPITITs. + if self.tcx.is_impl_trait_in_trait(id.to_def_id()) { self.live_symbols.insert(id); + continue; } + self.visit_node(self.tcx.hir_node_by_def_id(id)); } } diff --git a/compiler/rustc_passes/src/errors.rs b/compiler/rustc_passes/src/errors.rs index ab46ac2dd8b..4fec6b0798a 100644 --- a/compiler/rustc_passes/src/errors.rs +++ b/compiler/rustc_passes/src/errors.rs @@ -358,14 +358,6 @@ pub(crate) struct BothFfiConstAndPure { pub attr_span: Span, } -#[derive(LintDiagnostic)] -#[diag(passes_must_use_no_effect)] -pub(crate) struct MustUseNoEffect { - pub target: &'static str, - #[suggestion(code = "", applicability = "machine-applicable", style = "tool-only")] - pub attr_span: Span, -} - #[derive(Diagnostic)] #[diag(passes_must_not_suspend)] pub(crate) struct MustNotSuspend { diff --git a/compiler/rustc_pattern_analysis/src/rustc/print.rs b/compiler/rustc_pattern_analysis/src/rustc/print.rs index 7649f72f868..cdf62c2553d 100644 --- a/compiler/rustc_pattern_analysis/src/rustc/print.rs +++ b/compiler/rustc_pattern_analysis/src/rustc/print.rs @@ -101,23 +101,11 @@ pub(crate) fn write_struct_like<'tcx>( let num_fields = variant_and_name.as_ref().map_or(subpatterns.len(), |(v, _)| v.fields.len()); if num_fields != 0 || variant_and_name.is_none() { write!(f, "(")?; - for i in 0..num_fields { - write!(f, "{}", start_or_comma())?; - - // Common case: the field is where we expect it. - if let Some(p) = subpatterns.get(i) { - if p.field.index() == i { - write!(f, "{}", p.pattern)?; - continue; - } - } - - // Otherwise, we have to go looking for it. - if let Some(p) = subpatterns.iter().find(|p| p.field.index() == i) { - write!(f, "{}", p.pattern)?; - } else { - write!(f, "_")?; - } + for FieldPat { pattern, .. } in subpatterns { + write!(f, "{}{pattern}", start_or_comma())?; + } + if matches!(ty.kind(), ty::Tuple(..)) && num_fields == 1 { + write!(f, ",")?; } write!(f, ")")?; } diff --git a/compiler/rustc_resolve/messages.ftl b/compiler/rustc_resolve/messages.ftl index 05b5abc3dc6..47280a93677 100644 --- a/compiler/rustc_resolve/messages.ftl +++ b/compiler/rustc_resolve/messages.ftl @@ -93,6 +93,9 @@ resolve_consider_adding_a_derive = resolve_consider_adding_macro_export = consider adding a `#[macro_export]` to the macro in the imported module +resolve_consider_marking_as_pub_crate = + in case you want to use the macro within this crate only, reduce the visibility to `pub(crate)` + resolve_consider_declaring_with_pub = consider declaring type or module `{$ident}` with `pub` diff --git a/compiler/rustc_resolve/src/build_reduced_graph.rs b/compiler/rustc_resolve/src/build_reduced_graph.rs index 2f1c9fe4c1d..f75a625a279 100644 --- a/compiler/rustc_resolve/src/build_reduced_graph.rs +++ b/compiler/rustc_resolve/src/build_reduced_graph.rs @@ -11,7 +11,7 @@ use std::sync::Arc; use rustc_ast::visit::{self, AssocCtxt, Visitor, WalkItemKind}; use rustc_ast::{ self as ast, AssocItem, AssocItemKind, Block, ConstItem, Delegation, Fn, ForeignItem, - ForeignItemKind, Item, ItemKind, NodeId, StaticItem, StmtKind, TyAlias, + ForeignItemKind, Inline, Item, ItemKind, NodeId, StaticItem, StmtKind, TyAlias, }; use rustc_attr_parsing as attr; use rustc_attr_parsing::AttributeParser; @@ -485,6 +485,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { root_span, root_id, vis, + vis_span: item.vis.span, }); self.r.indeterminate_imports.push(import); @@ -812,7 +813,8 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { ItemKind::Mod(_, ident, ref mod_kind) => { self.r.define_local(parent, ident, TypeNS, res, vis, sp, expansion); - if let ast::ModKind::Loaded(_, _, _, Err(_)) = mod_kind { + if let ast::ModKind::Loaded(_, Inline::No { had_parse_error: Err(_) }, _) = mod_kind + { self.r.mods_with_parse_errors.insert(def_id); } self.parent_scope.module = self.r.new_local_module( @@ -977,6 +979,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { span: item.span, module_path: Vec::new(), vis, + vis_span: item.vis.span, }); if used { self.r.import_use_map.insert(import, Used::Other); @@ -1111,6 +1114,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { span, module_path: Vec::new(), vis: Visibility::Restricted(CRATE_DEF_ID), + vis_span: item.vis.span, }) }; @@ -1281,6 +1285,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { span, module_path: Vec::new(), vis, + vis_span: item.vis.span, }); self.r.import_use_map.insert(import, Used::Other); let import_binding = self.r.import(binding, import); diff --git a/compiler/rustc_resolve/src/diagnostics.rs b/compiler/rustc_resolve/src/diagnostics.rs index ff39ba46d97..337e7d2dd86 100644 --- a/compiler/rustc_resolve/src/diagnostics.rs +++ b/compiler/rustc_resolve/src/diagnostics.rs @@ -1020,11 +1020,11 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { &mut self, suggestions: &mut Vec<TypoSuggestion>, scope_set: ScopeSet<'ra>, - parent_scope: &ParentScope<'ra>, + ps: &ParentScope<'ra>, ctxt: SyntaxContext, filter_fn: &impl Fn(Res) -> bool, ) { - self.cm().visit_scopes(scope_set, parent_scope, ctxt, |this, scope, use_prelude, _| { + self.cm().visit_scopes(scope_set, ps, ctxt, None, |this, scope, use_prelude, _| { match scope { Scope::DeriveHelpers(expn_id) => { let res = Res::NonMacroAttr(NonMacroAttrKind::DeriveHelper); @@ -1557,7 +1557,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { }); } for ns in [Namespace::MacroNS, Namespace::TypeNS, Namespace::ValueNS] { - let Ok(binding) = self.cm().early_resolve_ident_in_lexical_scope( + let Ok(binding) = self.cm().resolve_ident_in_scope_set( ident, ScopeSet::All(ns), parent_scope, @@ -2371,7 +2371,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } } else { self.cm() - .early_resolve_ident_in_lexical_scope( + .resolve_ident_in_scope_set( ident, ScopeSet::All(ns_to_try), parent_scope, @@ -2474,7 +2474,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { }, ) }); - if let Ok(binding) = self.cm().early_resolve_ident_in_lexical_scope( + if let Ok(binding) = self.cm().resolve_ident_in_scope_set( ident, ScopeSet::All(ValueNS), parent_scope, @@ -3410,7 +3410,7 @@ impl<'tcx> visit::Visitor<'tcx> for UsePlacementFinder { fn visit_item(&mut self, item: &'tcx ast::Item) { if self.target_module == item.id { - if let ItemKind::Mod(_, _, ModKind::Loaded(items, _inline, mod_spans, _)) = &item.kind { + if let ItemKind::Mod(_, _, ModKind::Loaded(items, _inline, mod_spans)) = &item.kind { let inject = mod_spans.inject_use_span; if is_span_suitable_for_use_injection(inject) { self.first_legal_span = Some(inject); diff --git a/compiler/rustc_resolve/src/errors.rs b/compiler/rustc_resolve/src/errors.rs index a1d62ba7a68..63d6fa23a14 100644 --- a/compiler/rustc_resolve/src/errors.rs +++ b/compiler/rustc_resolve/src/errors.rs @@ -776,6 +776,17 @@ pub(crate) struct ConsiderAddingMacroExport { } #[derive(Subdiagnostic)] +#[suggestion( + resolve_consider_marking_as_pub_crate, + code = "pub(crate)", + applicability = "maybe-incorrect" +)] +pub(crate) struct ConsiderMarkingAsPubCrate { + #[primary_span] + pub(crate) vis_span: Span, +} + +#[derive(Subdiagnostic)] #[note(resolve_consider_marking_as_pub)] pub(crate) struct ConsiderMarkingAsPub { #[primary_span] diff --git a/compiler/rustc_resolve/src/ident.rs b/compiler/rustc_resolve/src/ident.rs index c1b3aff4e69..dae42645bec 100644 --- a/compiler/rustc_resolve/src/ident.rs +++ b/compiler/rustc_resolve/src/ident.rs @@ -19,7 +19,7 @@ use crate::{ AmbiguityError, AmbiguityErrorMisc, AmbiguityKind, BindingKey, CmResolver, Determinacy, Finalize, ImportKind, LexicalScopeBinding, Module, ModuleKind, ModuleOrUniformRoot, NameBinding, NameBindingKind, ParentScope, PathResult, PrivacyError, Res, ResolutionError, - Resolver, Scope, ScopeSet, Segment, Used, Weak, errors, + Resolver, Scope, ScopeSet, Segment, Stage, Used, Weak, errors, }; #[derive(Copy, Clone)] @@ -49,6 +49,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { scope_set: ScopeSet<'ra>, parent_scope: &ParentScope<'ra>, ctxt: SyntaxContext, + derive_fallback_lint_id: Option<NodeId>, mut visitor: impl FnMut( &mut CmResolver<'r, 'ra, 'tcx>, Scope<'ra>, @@ -99,15 +100,13 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { let rust_2015 = ctxt.edition().is_rust_2015(); let (ns, macro_kind) = match scope_set { - ScopeSet::All(ns) - | ScopeSet::ModuleAndExternPrelude(ns, _) - | ScopeSet::Late(ns, ..) => (ns, None), + ScopeSet::All(ns) | ScopeSet::ModuleAndExternPrelude(ns, _) => (ns, None), ScopeSet::ExternPrelude => (TypeNS, None), ScopeSet::Macro(macro_kind) => (MacroNS, Some(macro_kind)), }; let module = match scope_set { // Start with the specified module. - ScopeSet::Late(_, module, _) | ScopeSet::ModuleAndExternPrelude(_, module) => module, + ScopeSet::ModuleAndExternPrelude(_, module) => module, // Jump out of trait or enum modules, they do not act as scopes. _ => parent_scope.module.nearest_item_scope(), }; @@ -193,10 +192,6 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { }, Scope::Module(module, prev_lint_id) => { use_prelude = !module.no_implicit_prelude; - let derive_fallback_lint_id = match scope_set { - ScopeSet::Late(.., lint_id) => lint_id, - _ => None, - }; match self.hygienic_lexical_parent(module, &mut ctxt, derive_fallback_lint_id) { Some((parent_module, lint_id)) => { Scope::Module(parent_module, lint_id.or(prev_lint_id)) @@ -349,11 +344,13 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { return Some(LexicalScopeBinding::Item(binding)); } else if let RibKind::Module(module) = rib.kind { // Encountered a module item, abandon ribs and look into that module and preludes. + let parent_scope = &ParentScope { module, ..*parent_scope }; + let finalize = finalize.map(|f| Finalize { stage: Stage::Late, ..f }); return self .cm() - .early_resolve_ident_in_lexical_scope( + .resolve_ident_in_scope_set( orig_ident, - ScopeSet::Late(ns, module, finalize.map(|finalize| finalize.node_id)), + ScopeSet::All(ns), parent_scope, finalize, finalize.is_some(), @@ -376,13 +373,9 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { unreachable!() } - /// Resolve an identifier in lexical scope. - /// This is a variation of `fn resolve_ident_in_lexical_scope` that can be run during - /// expansion and import resolution (perhaps they can be merged in the future). - /// The function is used for resolving initial segments of macro paths (e.g., `foo` in - /// `foo::bar!();` or `foo!();`) and also for import paths on 2018 edition. + /// Resolve an identifier in the specified set of scopes. #[instrument(level = "debug", skip(self))] - pub(crate) fn early_resolve_ident_in_lexical_scope<'r>( + pub(crate) fn resolve_ident_in_scope_set<'r>( self: CmResolver<'r, 'ra, 'tcx>, orig_ident: Ident, scope_set: ScopeSet<'ra>, @@ -411,9 +404,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } let (ns, macro_kind) = match scope_set { - ScopeSet::All(ns) - | ScopeSet::ModuleAndExternPrelude(ns, _) - | ScopeSet::Late(ns, ..) => (ns, None), + ScopeSet::All(ns) | ScopeSet::ModuleAndExternPrelude(ns, _) => (ns, None), ScopeSet::ExternPrelude => (TypeNS, None), ScopeSet::Macro(macro_kind) => (MacroNS, Some(macro_kind)), }; @@ -437,10 +428,15 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } // Go through all the scopes and try to resolve the name. + let derive_fallback_lint_id = match finalize { + Some(Finalize { node_id, stage: Stage::Late, .. }) => Some(node_id), + _ => None, + }; let break_result = self.visit_scopes( scope_set, parent_scope, orig_ident.span.ctxt(), + derive_fallback_lint_id, |this, scope, use_prelude, ctxt| { let ident = Ident::new(orig_ident.name, orig_ident.span.with_ctxt(ctxt)); let result = match scope { @@ -510,11 +506,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { ident, ns, adjusted_parent_scope, - if matches!(scope_set, ScopeSet::Late(..)) { - Shadowing::Unrestricted - } else { - Shadowing::Restricted - }, + Shadowing::Restricted, adjusted_finalize, ignore_binding, ignore_import, @@ -528,7 +520,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { orig_ident.span, BuiltinLintDiag::ProcMacroDeriveResolutionFallback { span: orig_ident.span, - ns, + ns_descr: ns.descr(), ident, }, ); @@ -643,7 +635,11 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { return None; } - if finalize.is_none() || matches!(scope_set, ScopeSet::Late(..)) { + // Below we report various ambiguity errors. + // We do not need to report them if we are either in speculative resolution, + // or in late resolution when everything is already imported and expanded + // and no ambiguities exist. + if matches!(finalize, None | Some(Finalize { stage: Stage::Late, .. })) { return Some(Ok(binding)); } @@ -811,7 +807,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { ModuleOrUniformRoot::Module(module) => module, ModuleOrUniformRoot::ModuleAndExternPrelude(module) => { assert_eq!(shadowing, Shadowing::Unrestricted); - let binding = self.early_resolve_ident_in_lexical_scope( + let binding = self.resolve_ident_in_scope_set( ident, ScopeSet::ModuleAndExternPrelude(ns, module), parent_scope, @@ -827,7 +823,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { return if ns != TypeNS { Err((Determined, Weak::No)) } else { - let binding = self.early_resolve_ident_in_lexical_scope( + let binding = self.resolve_ident_in_scope_set( ident, ScopeSet::ExternPrelude, parent_scope, @@ -852,7 +848,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } } - let binding = self.early_resolve_ident_in_lexical_scope( + let binding = self.resolve_ident_in_scope_set( ident, ScopeSet::All(ns), parent_scope, @@ -945,7 +941,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { // Now we are in situation when new item/import can appear only from a glob or a macro // expansion. With restricted shadowing names from globs and macro expansions cannot // shadow names from outer scopes, so we can freely fallback from module search to search - // in outer scopes. For `early_resolve_ident_in_lexical_scope` to continue search in outer + // in outer scopes. For `resolve_ident_in_scope_set` to continue search in outer // scopes we return `Undetermined` with `Weak::Yes`. // Check if one of unexpanded macros can still define the name, @@ -1040,6 +1036,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { // Forbid expanded shadowing to avoid time travel. if let Some(shadowed_glob) = shadowed_glob && shadowing == Shadowing::Restricted + && finalize.stage == Stage::Early && binding.expansion != LocalExpnId::ROOT && binding.res() != shadowed_glob.res() { @@ -1635,7 +1632,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { _ => Err(Determinacy::determined(finalize.is_some())), } } else { - self.reborrow().early_resolve_ident_in_lexical_scope( + self.reborrow().resolve_ident_in_scope_set( ident, ScopeSet::All(ns), parent_scope, diff --git a/compiler/rustc_resolve/src/imports.rs b/compiler/rustc_resolve/src/imports.rs index 7c93fdb88ee..d7fc028287f 100644 --- a/compiler/rustc_resolve/src/imports.rs +++ b/compiler/rustc_resolve/src/imports.rs @@ -30,7 +30,7 @@ use crate::diagnostics::{DiagMode, Suggestion, import_candidates}; use crate::errors::{ CannotBeReexportedCratePublic, CannotBeReexportedCratePublicNS, CannotBeReexportedPrivate, CannotBeReexportedPrivateNS, CannotDetermineImportResolution, CannotGlobImportAllCrates, - ConsiderAddingMacroExport, ConsiderMarkingAsPub, + ConsiderAddingMacroExport, ConsiderMarkingAsPub, ConsiderMarkingAsPubCrate, }; use crate::{ AmbiguityError, AmbiguityKind, BindingKey, CmResolver, Determinacy, Finalize, ImportSuggestion, @@ -184,6 +184,9 @@ pub(crate) struct ImportData<'ra> { /// |`use foo` | `ModuleOrUniformRoot::CurrentScope` | - | pub imported_module: Cell<Option<ModuleOrUniformRoot<'ra>>>, pub vis: Visibility, + + /// Span of the visibility. + pub vis_span: Span, } /// All imports are unique and allocated on a same arena, @@ -866,7 +869,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } ImportKind::Glob { .. } => { // FIXME: Use mutable resolver directly as a hack, this should be an output of - // specualtive resolution. + // speculative resolution. self.get_mut_unchecked().resolve_glob_import(import); return 0; } @@ -903,7 +906,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { // We need the `target`, `source` can be extracted. let imported_binding = this.import(binding, import); // FIXME: Use mutable resolver directly as a hack, this should be an output of - // specualtive resolution. + // speculative resolution. this.get_mut_unchecked().define_binding_local( parent, target, @@ -917,7 +920,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { if target.name != kw::Underscore { let key = BindingKey::new(target, ns); // FIXME: Use mutable resolver directly as a hack, this should be an output of - // specualtive resolution. + // speculative resolution. this.get_mut_unchecked().update_local_resolution( parent, key, @@ -1368,6 +1371,9 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { err.subdiagnostic( ConsiderAddingMacroExport { span: binding.span, }); + err.subdiagnostic( ConsiderMarkingAsPubCrate { + vis_span: import.vis_span, + }); } _ => { err.subdiagnostic( ConsiderMarkingAsPub { @@ -1440,7 +1446,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { return; } - match this.cm().early_resolve_ident_in_lexical_scope( + match this.cm().resolve_ident_in_scope_set( target, ScopeSet::All(ns), &import.parent_scope, diff --git a/compiler/rustc_resolve/src/late.rs b/compiler/rustc_resolve/src/late.rs index 5200f9340e1..679e663f886 100644 --- a/compiler/rustc_resolve/src/late.rs +++ b/compiler/rustc_resolve/src/late.rs @@ -4270,7 +4270,7 @@ impl<'a, 'ast, 'ra, 'tcx> LateResolutionVisitor<'a, 'ast, 'ra, 'tcx> { if path.len() == 2 && let [segment] = prefix_path { - // Delay to check whether methond name is an associated function or not + // Delay to check whether method name is an associated function or not // ``` // let foo = Foo {}; // foo::bar(); // possibly suggest to foo.bar(); diff --git a/compiler/rustc_resolve/src/late/diagnostics.rs b/compiler/rustc_resolve/src/late/diagnostics.rs index 9b201e40d13..80b2095d8cc 100644 --- a/compiler/rustc_resolve/src/late/diagnostics.rs +++ b/compiler/rustc_resolve/src/late/diagnostics.rs @@ -38,8 +38,8 @@ use crate::late::{ }; use crate::ty::fast_reject::SimplifiedType; use crate::{ - Module, ModuleKind, ModuleOrUniformRoot, PathResult, PathSource, Resolver, ScopeSet, Segment, - errors, path_names_to_string, + Module, ModuleKind, ModuleOrUniformRoot, ParentScope, PathResult, PathSource, Resolver, + ScopeSet, Segment, errors, path_names_to_string, }; type Res = def::Res<ast::NodeId>; @@ -2460,10 +2460,11 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { self.r.add_module_candidates(module, &mut names, &filter_fn, Some(ctxt)); } else if let RibKind::Module(module) = rib.kind { // Encountered a module item, abandon ribs and look into that module and preludes. + let parent_scope = &ParentScope { module, ..self.parent_scope }; self.r.add_scope_set_candidates( &mut names, - ScopeSet::Late(ns, module, None), - &self.parent_scope, + ScopeSet::All(ns), + parent_scope, ctxt, filter_fn, ); @@ -3094,7 +3095,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { } else { self.suggest_introducing_lifetime( &mut err, - Some(lifetime_ref.ident.name.as_str()), + Some(lifetime_ref.ident), |err, _, span, message, suggestion, span_suggs| { err.multipart_suggestion_verbose( message, @@ -3112,7 +3113,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { fn suggest_introducing_lifetime( &self, err: &mut Diag<'_>, - name: Option<&str>, + name: Option<Ident>, suggest: impl Fn( &mut Diag<'_>, bool, @@ -3159,7 +3160,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { let mut rm_inner_binders: FxIndexSet<Span> = Default::default(); let (span, sugg) = if span.is_empty() { let mut binder_idents: FxIndexSet<Ident> = Default::default(); - binder_idents.insert(Ident::from_str(name.unwrap_or("'a"))); + binder_idents.insert(name.unwrap_or(Ident::from_str("'a"))); // We need to special case binders in the following situation: // Change `T: for<'a> Trait<T> + 'b` to `for<'a, 'b> T: Trait<T> + 'b` @@ -3189,16 +3190,11 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { } } - let binders_sugg = binder_idents.into_iter().enumerate().fold( - "".to_string(), - |mut binders, (i, x)| { - if i != 0 { - binders += ", "; - } - binders += x.as_str(); - binders - }, - ); + let binders_sugg: String = binder_idents + .into_iter() + .map(|ident| ident.to_string()) + .intersperse(", ".to_owned()) + .collect(); let sugg = format!( "{}<{}>{}", if higher_ranked { "for" } else { "" }, @@ -3214,7 +3210,8 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { .source_map() .span_through_char(span, '<') .shrink_to_hi(); - let sugg = format!("{}, ", name.unwrap_or("'a")); + let sugg = + format!("{}, ", name.map(|i| i.to_string()).as_deref().unwrap_or("'a")); (span, sugg) }; @@ -3222,7 +3219,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { let message = Cow::from(format!( "consider making the {} lifetime-generic with a new `{}` lifetime", kind.descr(), - name.unwrap_or("'a"), + name.map(|i| i.to_string()).as_deref().unwrap_or("'a"), )); should_continue = suggest( err, diff --git a/compiler/rustc_resolve/src/lib.rs b/compiler/rustc_resolve/src/lib.rs index c0a46e3b16b..2afb52ef4d4 100644 --- a/compiler/rustc_resolve/src/lib.rs +++ b/compiler/rustc_resolve/src/lib.rs @@ -49,7 +49,7 @@ use rustc_data_structures::intern::Interned; use rustc_data_structures::steal::Steal; use rustc_data_structures::sync::{FreezeReadGuard, FreezeWriteGuard}; use rustc_data_structures::unord::{UnordMap, UnordSet}; -use rustc_errors::{Applicability, Diag, ErrCode, ErrorGuaranteed}; +use rustc_errors::{Applicability, Diag, ErrCode, ErrorGuaranteed, LintBuffer}; use rustc_expand::base::{DeriveResolution, SyntaxExtension, SyntaxExtensionKind}; use rustc_feature::BUILTIN_ATTRIBUTES; use rustc_hir::attrs::StrippedCfgItem; @@ -72,8 +72,8 @@ use rustc_middle::ty::{ ResolverGlobalCtxt, TyCtxt, TyCtxtFeed, Visibility, }; use rustc_query_system::ich::StableHashingContext; +use rustc_session::lint::BuiltinLintDiag; use rustc_session::lint::builtin::PRIVATE_MACRO_USE; -use rustc_session::lint::{BuiltinLintDiag, LintBuffer}; use rustc_span::hygiene::{ExpnId, LocalExpnId, MacroKind, SyntaxContext, Transparency}; use rustc_span::{DUMMY_SP, Ident, Macros20NormalizedIdent, Span, Symbol, kw, sym}; use smallvec::{SmallVec, smallvec}; @@ -156,11 +156,8 @@ enum ScopeSet<'ra> { ModuleAndExternPrelude(Namespace, Module<'ra>), /// Just two extern prelude scopes. ExternPrelude, - /// All scopes with macro namespace and the given macro kind restriction. + /// Same as `All(MacroNS)`, but with the given macro kind restriction. Macro(MacroKind), - /// All scopes with the given namespace, used for partially performing late resolution. - /// The node id enables lints and is used for reporting them. - Late(Namespace, Module<'ra>, Option<NodeId>), } /// Everything you need to know about a name's location to resolve it. @@ -781,7 +778,10 @@ impl<'ra> std::ops::Deref for Module<'ra> { impl<'ra> fmt::Debug for Module<'ra> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - write!(f, "{:?}", self.res()) + match self.kind { + ModuleKind::Block => write!(f, "block"), + ModuleKind::Def(..) => write!(f, "{:?}", self.res()), + } } } @@ -1885,7 +1885,8 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } } - self.cm().visit_scopes(ScopeSet::All(TypeNS), parent_scope, ctxt, |this, scope, _, _| { + let scope_set = ScopeSet::All(TypeNS); + self.cm().visit_scopes(scope_set, parent_scope, ctxt, None, |this, scope, _, _| { match scope { Scope::Module(module, _) => { this.get_mut().traits_in_module(module, assoc_item, &mut found_traits); @@ -2452,6 +2453,17 @@ fn module_to_string(mut module: Module<'_>) -> Option<String> { Some(names_to_string(names.iter().rev().copied())) } +#[derive(Copy, Clone, PartialEq, Debug)] +enum Stage { + /// Resolving an import or a macro. + /// Used when macro expansion is either not yet finished, or we are finalizing its results. + /// Used by default as a more restrictive variant that can produce additional errors. + Early, + /// Resolving something in late resolution when all imports are resolved + /// and all macros are expanded. + Late, +} + #[derive(Copy, Clone, Debug)] struct Finalize { /// Node ID for linting. @@ -2464,9 +2476,11 @@ struct Finalize { root_span: Span, /// Whether to report privacy errors or silently return "no resolution" for them, /// similarly to speculative resolution. - report_private: bool, + report_private: bool = true, /// Tracks whether an item is used in scope or used relatively to a module. - used: Used, + used: Used = Used::Other, + /// Finalizing early or late resolution. + stage: Stage = Stage::Early, } impl Finalize { @@ -2475,7 +2489,7 @@ impl Finalize { } fn with_root_span(node_id: NodeId, path_span: Span, root_span: Span) -> Finalize { - Finalize { node_id, path_span, root_span, report_private: true, used: Used::Other } + Finalize { node_id, path_span, root_span, .. } } } diff --git a/compiler/rustc_resolve/src/macros.rs b/compiler/rustc_resolve/src/macros.rs index 72ed8990241..5fa87b4cd9b 100644 --- a/compiler/rustc_resolve/src/macros.rs +++ b/compiler/rustc_resolve/src/macros.rs @@ -789,7 +789,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { self.prohibit_imported_non_macro_attrs(None, res.ok(), path_span); res } else { - let binding = self.reborrow().early_resolve_ident_in_lexical_scope( + let binding = self.reborrow().resolve_ident_in_scope_set( path[0].ident, ScopeSet::Macro(kind), parent_scope, @@ -951,7 +951,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { // FIXME: Should be an output of Speculative Resolution. let macro_resolutions = self.single_segment_macro_resolutions.take(); for (ident, kind, parent_scope, initial_binding, sugg_span) in macro_resolutions { - match self.cm().early_resolve_ident_in_lexical_scope( + match self.cm().resolve_ident_in_scope_set( ident, ScopeSet::Macro(kind), &parent_scope, @@ -1006,7 +1006,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { let builtin_attrs = mem::take(&mut self.builtin_attrs); for (ident, parent_scope) in builtin_attrs { - let _ = self.cm().early_resolve_ident_in_lexical_scope( + let _ = self.cm().resolve_ident_in_scope_set( ident, ScopeSet::Macro(MacroKind::Attr), &parent_scope, @@ -1112,7 +1112,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { // If such resolution is successful and gives the same result // (e.g. if the macro is re-imported), then silence the lint. let no_macro_rules = self.arenas.alloc_macro_rules_scope(MacroRulesScope::Empty); - let fallback_binding = self.reborrow().early_resolve_ident_in_lexical_scope( + let fallback_binding = self.reborrow().resolve_ident_in_scope_set( path.segments[0].ident, ScopeSet::Macro(MacroKind::Bang), &ParentScope { macro_rules: no_macro_rules, ..*parent_scope }, diff --git a/compiler/rustc_session/Cargo.toml b/compiler/rustc_session/Cargo.toml index 0516982aeab..60d56b1b808 100644 --- a/compiler/rustc_session/Cargo.toml +++ b/compiler/rustc_session/Cargo.toml @@ -27,8 +27,10 @@ tracing = "0.1" # tidy-alphabetical-end [target.'cfg(unix)'.dependencies] +# FIXME: Remove this pin once this rustix issue is resolved +# https://github.com/bytecodealliance/rustix/issues/1496 # tidy-alphabetical-start -libc = "0.2" +libc = "=0.2.174" # tidy-alphabetical-end [target.'cfg(windows)'.dependencies.windows] diff --git a/compiler/rustc_session/messages.ftl b/compiler/rustc_session/messages.ftl index 528c52eace7..b46e8ab4fdc 100644 --- a/compiler/rustc_session/messages.ftl +++ b/compiler/rustc_session/messages.ftl @@ -49,6 +49,8 @@ session_hexadecimal_float_literal_not_supported = hexadecimal float literal is n session_incompatible_linker_flavor = linker flavor `{$flavor}` is incompatible with the current target .note = compatible flavors are: {$compatible_list} +session_indirect_branch_cs_prefix_requires_x86_or_x86_64 = `-Zindirect-branch-cs-prefix` is only supported on x86 and x86_64 + session_instrumentation_not_supported = {$us} instrumentation is not supported for this target session_int_literal_too_large = integer literal is too large @@ -129,6 +131,10 @@ session_target_small_data_threshold_not_supported = `-Z small-data-threshold` is session_target_stack_protector_not_supported = `-Z stack-protector={$stack_protector}` is not supported for target {$target_triple} and will be ignored +session_unexpected_builtin_cfg = unexpected `--cfg {$cfg}` flag + .controlled_by = config `{$cfg_name}` is only supposed to be controlled by `{$controlled_by}` + .incoherent = manually setting a built-in cfg can and does create incoherent behaviors + session_unleashed_feature_help_named = skipping check for `{$gate}` feature session_unleashed_feature_help_unnamed = skipping check that does not even have a feature gate diff --git a/compiler/rustc_session/src/config/cfg.rs b/compiler/rustc_session/src/config/cfg.rs index 62891eb4f26..8f63ce6f0ae 100644 --- a/compiler/rustc_session/src/config/cfg.rs +++ b/compiler/rustc_session/src/config/cfg.rs @@ -26,13 +26,12 @@ use std::iter; use rustc_abi::Align; use rustc_ast::ast; use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexSet}; -use rustc_lint_defs::BuiltinLintDiag; use rustc_lint_defs::builtin::EXPLICIT_BUILTIN_CFGS_IN_FLAGS; use rustc_span::{Symbol, sym}; use rustc_target::spec::{PanicStrategy, RelocModel, SanitizerSet, Target}; -use crate::Session; use crate::config::{CrateType, FmtDebug}; +use crate::{Session, errors}; /// The parsed `--cfg` options that define the compilation environment of the /// crate, used to drive conditional compilation. @@ -99,7 +98,7 @@ pub(crate) fn disallow_cfgs(sess: &Session, user_cfgs: &Cfg) { EXPLICIT_BUILTIN_CFGS_IN_FLAGS, None, ast::CRATE_NODE_ID, - BuiltinLintDiag::UnexpectedBuiltinCfg { cfg, cfg_name, controlled_by }, + errors::UnexpectedBuiltinCfg { cfg, cfg_name, controlled_by }.into(), ) }; diff --git a/compiler/rustc_session/src/errors.rs b/compiler/rustc_session/src/errors.rs index bf95014843d..34da54a20bf 100644 --- a/compiler/rustc_session/src/errors.rs +++ b/compiler/rustc_session/src/errors.rs @@ -7,7 +7,7 @@ use rustc_errors::{ Diag, DiagCtxtHandle, DiagMessage, Diagnostic, EmissionGuarantee, ErrorGuaranteed, Level, MultiSpan, }; -use rustc_macros::{Diagnostic, Subdiagnostic}; +use rustc_macros::{Diagnostic, LintDiagnostic, Subdiagnostic}; use rustc_span::{Span, Symbol}; use rustc_target::spec::{SplitDebuginfo, StackProtector, TargetTuple}; @@ -472,6 +472,10 @@ pub(crate) struct FunctionReturnRequiresX86OrX8664; pub(crate) struct FunctionReturnThunkExternRequiresNonLargeCodeModel; #[derive(Diagnostic)] +#[diag(session_indirect_branch_cs_prefix_requires_x86_or_x86_64)] +pub(crate) struct IndirectBranchCsPrefixRequiresX86OrX8664; + +#[derive(Diagnostic)] #[diag(session_unsupported_regparm)] pub(crate) struct UnsupportedRegparm { pub(crate) regparm: u32, @@ -501,3 +505,13 @@ pub(crate) struct SoftFloatIgnored; #[note] #[note(session_soft_float_deprecated_issue)] pub(crate) struct SoftFloatDeprecated; + +#[derive(LintDiagnostic)] +#[diag(session_unexpected_builtin_cfg)] +#[note(session_controlled_by)] +#[note(session_incoherent)] +pub(crate) struct UnexpectedBuiltinCfg { + pub(crate) cfg: String, + pub(crate) cfg_name: Symbol, + pub(crate) controlled_by: &'static str, +} diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs index 0e112edc733..6d5be2d92cd 100644 --- a/compiler/rustc_session/src/options.rs +++ b/compiler/rustc_session/src/options.rs @@ -2295,6 +2295,8 @@ options! { - hashes of green query instances - hash collisions of query keys - hash collisions when creating dep-nodes"), + indirect_branch_cs_prefix: bool = (false, parse_bool, [TRACKED TARGET_MODIFIER], + "add `cs` prefix to `call` and `jmp` to indirect thunks (default: no)"), inline_llvm: bool = (true, parse_bool, [TRACKED], "enable LLVM inlining (default: yes)"), inline_mir: Option<bool> = (None, parse_opt_bool, [TRACKED], diff --git a/compiler/rustc_session/src/parse.rs b/compiler/rustc_session/src/parse.rs index 426480f0dba..9048c51d5b4 100644 --- a/compiler/rustc_session/src/parse.rs +++ b/compiler/rustc_session/src/parse.rs @@ -11,8 +11,8 @@ use rustc_data_structures::sync::{AppendOnlyVec, Lock}; use rustc_errors::emitter::{FatalOnlyEmitter, HumanEmitter, stderr_destination}; use rustc_errors::translation::Translator; use rustc_errors::{ - ColorConfig, Diag, DiagCtxt, DiagCtxtHandle, DiagMessage, EmissionGuarantee, MultiSpan, - StashKey, + BufferedEarlyLint, ColorConfig, DecorateDiagCompat, Diag, DiagCtxt, DiagCtxtHandle, + DiagMessage, EmissionGuarantee, MultiSpan, StashKey, }; use rustc_feature::{GateIssue, UnstableFeatures, find_feature_issue}; use rustc_span::edition::Edition; @@ -27,7 +27,7 @@ use crate::errors::{ FeatureDiagnosticSuggestion, FeatureGateError, SuggestUpgradeCompiler, }; use crate::lint::builtin::UNSTABLE_SYNTAX_PRE_EXPANSION; -use crate::lint::{BufferedEarlyLint, BuiltinLintDiag, Lint, LintId}; +use crate::lint::{Lint, LintId}; /// Collected spans during parsing for places where a certain feature was /// used and should be feature gated accordingly in `check_crate`. @@ -342,17 +342,17 @@ impl ParseSess { lint: &'static Lint, span: impl Into<MultiSpan>, node_id: NodeId, - diagnostic: BuiltinLintDiag, + diagnostic: impl Into<DecorateDiagCompat>, ) { - self.opt_span_buffer_lint(lint, Some(span.into()), node_id, diagnostic) + self.opt_span_buffer_lint(lint, Some(span.into()), node_id, diagnostic.into()) } - pub fn opt_span_buffer_lint( + pub(crate) fn opt_span_buffer_lint( &self, lint: &'static Lint, span: Option<MultiSpan>, node_id: NodeId, - diagnostic: BuiltinLintDiag, + diagnostic: DecorateDiagCompat, ) { self.buffered_lints.with_lock(|buffered_lints| { buffered_lints.push(BufferedEarlyLint { diff --git a/compiler/rustc_session/src/session.rs b/compiler/rustc_session/src/session.rs index c6956cf5f23..96767d05439 100644 --- a/compiler/rustc_session/src/session.rs +++ b/compiler/rustc_session/src/session.rs @@ -7,6 +7,7 @@ use std::sync::atomic::AtomicBool; use std::{env, fmt, io}; use rand::{RngCore, rng}; +use rustc_ast::NodeId; use rustc_data_structures::base_n::{CASE_INSENSITIVE, ToBaseN}; use rustc_data_structures::flock; use rustc_data_structures::fx::{FxHashMap, FxIndexSet}; @@ -22,7 +23,7 @@ use rustc_errors::timings::TimingSectionHandler; use rustc_errors::translation::Translator; use rustc_errors::{ Diag, DiagCtxt, DiagCtxtHandle, DiagMessage, Diagnostic, ErrorGuaranteed, FatalAbort, - TerminalUrl, fallback_fluent_bundle, + LintEmitter, TerminalUrl, fallback_fluent_bundle, }; use rustc_macros::HashStable_Generic; pub use rustc_span::def_id::StableCrateId; @@ -44,6 +45,7 @@ use crate::config::{ SwitchWithOptPath, }; use crate::filesearch::FileSearch; +use crate::lint::LintId; use crate::parse::{ParseSess, add_feature_diagnostics}; use crate::search_paths::SearchPath; use crate::{errors, filesearch, lint}; @@ -139,7 +141,10 @@ pub struct CompilerIO { pub temps_dir: Option<PathBuf>, } -pub trait LintStoreMarker: Any + DynSync + DynSend {} +pub trait DynLintStore: Any + DynSync + DynSend { + /// Provides a way to access lint groups without depending on `rustc_lint` + fn lint_groups_iter(&self) -> Box<dyn Iterator<Item = LintGroup> + '_>; +} /// Represents the data associated with a compilation /// session for a single crate. @@ -164,7 +169,7 @@ pub struct Session { pub code_stats: CodeStats, /// This only ever stores a `LintStore` but we don't want a dependency on that type here. - pub lint_store: Option<Arc<dyn LintStoreMarker>>, + pub lint_store: Option<Arc<dyn DynLintStore>>, /// Cap lint level specified by a driver specifically. pub driver_lint_caps: FxHashMap<lint::LintId, lint::Level>, @@ -219,6 +224,20 @@ pub struct Session { pub invocation_temp: Option<String>, } +impl LintEmitter for &'_ Session { + type Id = NodeId; + + fn emit_node_span_lint( + self, + lint: &'static rustc_lint_defs::Lint, + node_id: Self::Id, + span: impl Into<rustc_errors::MultiSpan>, + decorator: impl for<'a> rustc_errors::LintDiagnostic<'a, ()> + DynSend + 'static, + ) { + self.psess.buffer_lint(lint, span, node_id, decorator); + } +} + #[derive(Clone, Copy)] pub enum CodegenUnits { /// Specified by the user. In this case we try fairly hard to produce the @@ -240,6 +259,12 @@ impl CodegenUnits { } } +pub struct LintGroup { + pub name: &'static str, + pub lints: Vec<LintId>, + pub is_externally_loaded: bool, +} + impl Session { pub fn miri_unleashed_feature(&self, span: Span, feature_gate: Option<Symbol>) { self.miri_unleashed_features.lock().push((span, feature_gate)); @@ -596,6 +621,13 @@ impl Session { (&*self.target.staticlib_prefix, &*self.target.staticlib_suffix) } } + + pub fn lint_groups_iter(&self) -> Box<dyn Iterator<Item = LintGroup> + '_> { + match self.lint_store { + Some(ref lint_store) => lint_store.lint_groups_iter(), + None => Box::new(std::iter::empty()), + } + } } // JUSTIFICATION: defn of the suggested wrapper fns @@ -1368,6 +1400,12 @@ fn validate_commandline_args_with_session_available(sess: &Session) { } } + if sess.opts.unstable_opts.indirect_branch_cs_prefix { + if sess.target.arch != "x86" && sess.target.arch != "x86_64" { + sess.dcx().emit_err(errors::IndirectBranchCsPrefixRequiresX86OrX8664); + } + } + if let Some(regparm) = sess.opts.unstable_opts.regparm { if regparm > 3 { sess.dcx().emit_err(errors::UnsupportedRegparm { regparm }); diff --git a/compiler/rustc_span/src/caching_source_map_view.rs b/compiler/rustc_span/src/caching_source_map_view.rs index a887b50ec1e..41cfaa3ee34 100644 --- a/compiler/rustc_span/src/caching_source_map_view.rs +++ b/compiler/rustc_span/src/caching_source_map_view.rs @@ -123,27 +123,25 @@ impl<'sm> CachingSourceMapView<'sm> { if lo_cache_idx != -1 && hi_cache_idx != -1 { // Cache hit for span lo and hi. Check if they belong to the same file. - let result = { - let lo = &self.line_cache[lo_cache_idx as usize]; - let hi = &self.line_cache[hi_cache_idx as usize]; + let lo_file_index = self.line_cache[lo_cache_idx as usize].file_index; + let hi_file_index = self.line_cache[hi_cache_idx as usize].file_index; - if lo.file_index != hi.file_index { - return None; - } - - ( - lo.file.stable_id, - lo.line_number, - span_data.lo - lo.line.start, - hi.line_number, - span_data.hi - hi.line.start, - ) - }; + if lo_file_index != hi_file_index { + return None; + } self.line_cache[lo_cache_idx as usize].touch(self.time_stamp); self.line_cache[hi_cache_idx as usize].touch(self.time_stamp); - return Some(result); + let lo = &self.line_cache[lo_cache_idx as usize]; + let hi = &self.line_cache[hi_cache_idx as usize]; + return Some(( + lo.file.stable_id, + lo.line_number, + span_data.lo - lo.line.start, + hi.line_number, + span_data.hi - hi.line.start, + )); } // No cache hit or cache hit for only one of span lo and hi. diff --git a/compiler/rustc_span/src/source_map.rs b/compiler/rustc_span/src/source_map.rs index d9315149798..8270de1e917 100644 --- a/compiler/rustc_span/src/source_map.rs +++ b/compiler/rustc_span/src/source_map.rs @@ -911,12 +911,13 @@ impl SourceMap { /// Returns a new span representing just the last character of this span. pub fn end_point(&self, sp: Span) -> Span { - let pos = sp.hi().0; + let sp = sp.data(); + let pos = sp.hi.0; let width = self.find_width_of_character_at_span(sp, false); let corrected_end_position = pos.checked_sub(width).unwrap_or(pos); - let end_point = BytePos(cmp::max(corrected_end_position, sp.lo().0)); + let end_point = BytePos(cmp::max(corrected_end_position, sp.lo.0)); sp.with_lo(end_point) } @@ -930,8 +931,9 @@ impl SourceMap { if sp.is_dummy() { return sp; } - let start_of_next_point = sp.hi().0; + let sp = sp.data(); + let start_of_next_point = sp.hi.0; let width = self.find_width_of_character_at_span(sp, true); // If the width is 1, then the next span should only contain the next char besides current ending. // However, in the case of a multibyte character, where the width != 1, the next span should @@ -940,7 +942,7 @@ impl SourceMap { start_of_next_point.checked_add(width).unwrap_or(start_of_next_point); let end_of_next_point = BytePos(cmp::max(start_of_next_point + 1, end_of_next_point)); - Span::new(BytePos(start_of_next_point), end_of_next_point, sp.ctxt(), None) + Span::new(BytePos(start_of_next_point), end_of_next_point, sp.ctxt, None) } /// Check whether span is followed by some specified expected string in limit scope @@ -963,9 +965,7 @@ impl SourceMap { /// Finds the width of the character, either before or after the end of provided span, /// depending on the `forwards` parameter. #[instrument(skip(self, sp))] - fn find_width_of_character_at_span(&self, sp: Span, forwards: bool) -> u32 { - let sp = sp.data(); - + fn find_width_of_character_at_span(&self, sp: SpanData, forwards: bool) -> u32 { if sp.lo == sp.hi && !forwards { debug!("early return empty span"); return 1; diff --git a/compiler/rustc_span/src/span_encoding.rs b/compiler/rustc_span/src/span_encoding.rs index a4a47dc99b0..e34efa784de 100644 --- a/compiler/rustc_span/src/span_encoding.rs +++ b/compiler/rustc_span/src/span_encoding.rs @@ -74,9 +74,8 @@ use crate::{BytePos, SPAN_TRACK, SpanData}; /// because `parent` isn't currently used by default. /// /// In order to reliably use parented spans in incremental compilation, -/// the dependency to the parent definition's span. This is performed -/// using the callback `SPAN_TRACK` to access the query engine. -/// +/// accesses to `lo` and `hi` must introduce a dependency to the parent definition's span. +/// This is performed using the callback `SPAN_TRACK` to access the query engine. #[derive(Clone, Copy, Eq, PartialEq, Hash)] #[rustc_pass_by_value] pub struct Span { diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index 65a52b27d3b..5d140cc6117 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -901,6 +901,7 @@ symbols! { dynamic_no_pic: "dynamic-no-pic", e, edition_panic, + effective_target_features, effects, eh_catch_typeinfo, eh_personality, @@ -1061,6 +1062,7 @@ symbols! { fn_ptr_addr, fn_ptr_trait, forbid, + force_target_feature, forget, format, format_args, @@ -1754,6 +1756,7 @@ symbols! { readonly, realloc, reason, + reborrow, receiver, receiver_target, recursion_limit, @@ -1837,6 +1840,7 @@ symbols! { rustc_align, rustc_allocator, rustc_allocator_zeroed, + rustc_allocator_zeroed_variant, rustc_allow_const_fn_unstable, rustc_allow_incoherent_impl, rustc_allowed_through_unstable_modules, @@ -2532,10 +2536,16 @@ impl fmt::Debug for Ident { /// except that AST identifiers don't keep the rawness flag, so we have to guess it. impl fmt::Display for Ident { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - fmt::Display::fmt(&IdentPrinter::new(self.name, self.is_raw_guess(), None), f) + fmt::Display::fmt(&IdentPrinter::new(self.name, self.guess_print_mode(), None), f) } } +pub enum IdentPrintMode { + Normal, + RawIdent, + RawLifetime, +} + /// The most general type to print identifiers. /// /// AST pretty-printer is used as a fallback for turning AST structures into token streams for @@ -2551,7 +2561,7 @@ impl fmt::Display for Ident { /// done for a token stream or a single token. pub struct IdentPrinter { symbol: Symbol, - is_raw: bool, + mode: IdentPrintMode, /// Span used for retrieving the crate name to which `$crate` refers to, /// if this field is `None` then the `$crate` conversion doesn't happen. convert_dollar_crate: Option<Span>, @@ -2559,32 +2569,51 @@ pub struct IdentPrinter { impl IdentPrinter { /// The most general `IdentPrinter` constructor. Do not use this. - pub fn new(symbol: Symbol, is_raw: bool, convert_dollar_crate: Option<Span>) -> IdentPrinter { - IdentPrinter { symbol, is_raw, convert_dollar_crate } + pub fn new( + symbol: Symbol, + mode: IdentPrintMode, + convert_dollar_crate: Option<Span>, + ) -> IdentPrinter { + IdentPrinter { symbol, mode, convert_dollar_crate } } /// This implementation is supposed to be used when printing identifiers /// as a part of pretty-printing for larger AST pieces. /// Do not use this either. - pub fn for_ast_ident(ident: Ident, is_raw: bool) -> IdentPrinter { - IdentPrinter::new(ident.name, is_raw, Some(ident.span)) + pub fn for_ast_ident(ident: Ident, mode: IdentPrintMode) -> IdentPrinter { + IdentPrinter::new(ident.name, mode, Some(ident.span)) } } impl fmt::Display for IdentPrinter { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - if self.is_raw { - f.write_str("r#")?; - } else if self.symbol == kw::DollarCrate { - if let Some(span) = self.convert_dollar_crate { + let s = match self.mode { + IdentPrintMode::Normal + if self.symbol == kw::DollarCrate + && let Some(span) = self.convert_dollar_crate => + { let converted = span.ctxt().dollar_crate_name(); if !converted.is_path_segment_keyword() { f.write_str("::")?; } - return fmt::Display::fmt(&converted, f); + converted } - } - fmt::Display::fmt(&self.symbol, f) + IdentPrintMode::Normal => self.symbol, + IdentPrintMode::RawIdent => { + f.write_str("r#")?; + self.symbol + } + IdentPrintMode::RawLifetime => { + f.write_str("'r#")?; + let s = self + .symbol + .as_str() + .strip_prefix("'") + .expect("only lifetime idents should be passed with RawLifetime mode"); + Symbol::intern(s) + } + }; + s.fmt(f) } } @@ -3019,6 +3048,29 @@ impl Ident { self.name.can_be_raw() && self.is_reserved() } + /// Given the name of a lifetime without the first quote (`'`), + /// returns whether the lifetime name is reserved (therefore invalid) + pub fn is_reserved_lifetime(self) -> bool { + self.is_reserved() && ![kw::Underscore, kw::Static].contains(&self.name) + } + + pub fn is_raw_lifetime_guess(self) -> bool { + let name_without_apostrophe = self.without_first_quote(); + name_without_apostrophe.name != self.name + && name_without_apostrophe.name.can_be_raw() + && name_without_apostrophe.is_reserved_lifetime() + } + + pub fn guess_print_mode(self) -> IdentPrintMode { + if self.is_raw_lifetime_guess() { + IdentPrintMode::RawLifetime + } else if self.is_raw_guess() { + IdentPrintMode::RawIdent + } else { + IdentPrintMode::Normal + } + } + /// Whether this would be the identifier for a tuple field like `self.0`, as /// opposed to a named field like `self.thing`. pub fn is_numeric(self) -> bool { diff --git a/compiler/rustc_symbol_mangling/src/lib.rs b/compiler/rustc_symbol_mangling/src/lib.rs index f3c96f64190..d97ee956525 100644 --- a/compiler/rustc_symbol_mangling/src/lib.rs +++ b/compiler/rustc_symbol_mangling/src/lib.rs @@ -193,29 +193,20 @@ fn compute_symbol_name<'tcx>( // defining crate. // Weak lang items automatically get #[rustc_std_internal_symbol] // applied by the code computing the CodegenFnAttrs. - // We are mangling all #[rustc_std_internal_symbol] items that don't - // also have #[no_mangle] as a combination of the rustc version and the - // unmangled linkage name. This is to ensure that if we link against a - // staticlib compiled by a different rustc version, we don't get symbol - // conflicts or even UB due to a different implementation/ABI. Rust - // staticlibs currently export all symbols, including those that are - // hidden in cdylibs. + // We are mangling all #[rustc_std_internal_symbol] items as a + // combination of the rustc version and the unmangled linkage name. + // This is to ensure that if we link against a staticlib compiled by a + // different rustc version, we don't get symbol conflicts or even UB + // due to a different implementation/ABI. Rust staticlibs currently + // export all symbols, including those that are hidden in cdylibs. // We are using the v0 symbol mangling scheme here as we need to be // consistent across all crates and in some contexts the legacy symbol // mangling scheme can't be used. For example both the GCC backend and // Rust-for-Linux don't support some of the characters used by the // legacy symbol mangling scheme. - let name = if tcx.is_foreign_item(def_id) { - if let Some(name) = attrs.link_name { name } else { tcx.item_name(def_id) } - } else { - if let Some(name) = attrs.export_name { name } else { tcx.item_name(def_id) } - }; + let name = if let Some(name) = attrs.symbol_name { name } else { tcx.item_name(def_id) }; - if attrs.flags.contains(CodegenFnAttrFlags::NO_MANGLE) { - return name.to_string(); - } else { - return v0::mangle_internal_symbol(tcx, name.as_str()); - } + return v0::mangle_internal_symbol(tcx, name.as_str()); } let wasm_import_module_exception_force_mangling = { @@ -240,23 +231,16 @@ fn compute_symbol_name<'tcx>( && tcx.wasm_import_module_map(LOCAL_CRATE).contains_key(&def_id.into()) }; - if let Some(name) = attrs.link_name - && !wasm_import_module_exception_force_mangling - { - // Use provided name - return name.to_string(); - } - - if let Some(name) = attrs.export_name { - // Use provided name - return name.to_string(); - } + if !wasm_import_module_exception_force_mangling { + if let Some(name) = attrs.symbol_name { + // Use provided name + return name.to_string(); + } - if attrs.flags.contains(CodegenFnAttrFlags::NO_MANGLE) - && !wasm_import_module_exception_force_mangling - { - // Don't mangle - return tcx.item_name(def_id).to_string(); + if attrs.flags.contains(CodegenFnAttrFlags::NO_MANGLE) { + // Don't mangle + return tcx.item_name(def_id).to_string(); + } } // If we're dealing with an instance of a function that's inlined from diff --git a/compiler/rustc_target/Cargo.toml b/compiler/rustc_target/Cargo.toml index 56932c24922..57c90a703f1 100644 --- a/compiler/rustc_target/Cargo.toml +++ b/compiler/rustc_target/Cargo.toml @@ -8,6 +8,7 @@ edition = "2024" bitflags = "2.4.1" rustc_abi = { path = "../rustc_abi" } rustc_data_structures = { path = "../rustc_data_structures" } +rustc_error_messages = { path = "../rustc_error_messages" } rustc_fs_util = { path = "../rustc_fs_util" } rustc_macros = { path = "../rustc_macros" } rustc_serialize = { path = "../rustc_serialize" } diff --git a/compiler/rustc_target/src/callconv/mod.rs b/compiler/rustc_target/src/callconv/mod.rs index 63e56744aec..5f2a6f7ba38 100644 --- a/compiler/rustc_target/src/callconv/mod.rs +++ b/compiler/rustc_target/src/callconv/mod.rs @@ -119,6 +119,7 @@ mod attr_impl { const ReadOnly = 1 << 4; const InReg = 1 << 5; const NoUndef = 1 << 6; + const CapturesReadOnly = 1 << 7; } } rustc_data_structures::external_bitflags_debug! { ArgAttribute } diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index 2aa8ab5d317..a67795e3e93 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -50,6 +50,7 @@ use rustc_abi::{ Align, CanonAbi, Endian, ExternAbi, Integer, Size, TargetDataLayout, TargetDataLayoutErrors, }; use rustc_data_structures::fx::{FxHashSet, FxIndexSet}; +use rustc_error_messages::{DiagArgValue, IntoDiagArg, into_diag_arg_using_display}; use rustc_fs_util::try_canonicalize; use rustc_macros::{Decodable, Encodable, HashStable_Generic}; use rustc_serialize::{Decodable, Decoder, Encodable, Encoder}; @@ -875,6 +876,12 @@ impl FromStr for PanicStrategy { crate::json::serde_deserialize_from_str!(PanicStrategy); +impl IntoDiagArg for PanicStrategy { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(Cow::Owned(self.desc().to_string())) + } +} + impl ToJson for PanicStrategy { fn to_json(&self) -> Json { match *self { @@ -1518,6 +1525,8 @@ impl fmt::Display for SplitDebuginfo { } } +into_diag_arg_using_display!(SplitDebuginfo); + #[derive(Clone, Debug, PartialEq, Eq, serde_derive::Deserialize)] #[serde(tag = "kind")] #[serde(rename_all = "kebab-case")] @@ -1795,6 +1804,8 @@ impl fmt::Display for StackProtector { } } +into_diag_arg_using_display!(StackProtector); + #[derive(PartialEq, Clone, Debug)] pub enum BinaryFormat { Coff, @@ -2105,6 +2116,7 @@ supported_targets! { ("msp430-none-elf", msp430_none_elf), + ("aarch64_be-unknown-hermit", aarch64_be_unknown_hermit), ("aarch64-unknown-hermit", aarch64_unknown_hermit), ("riscv64gc-unknown-hermit", riscv64gc_unknown_hermit), ("x86_64-unknown-hermit", x86_64_unknown_hermit), @@ -3806,3 +3818,5 @@ impl fmt::Display for TargetTuple { write!(f, "{}", self.debug_tuple()) } } + +into_diag_arg_using_display!(&TargetTuple); diff --git a/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_hermit.rs b/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_hermit.rs new file mode 100644 index 00000000000..cad57abc2b1 --- /dev/null +++ b/compiler/rustc_target/src/spec/targets/aarch64_be_unknown_hermit.rs @@ -0,0 +1,25 @@ +use rustc_abi::Endian; + +use crate::spec::{StackProbeType, Target, TargetMetadata, TargetOptions, base}; + +pub(crate) fn target() -> Target { + Target { + llvm_target: "aarch64_be-unknown-hermit".into(), + metadata: TargetMetadata { + description: Some("ARM64 Hermit (big-endian)".into()), + tier: Some(3), + host_tools: Some(false), + std: Some(true), + }, + pointer_width: 64, + arch: "aarch64".into(), + data_layout: "E-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(), + options: TargetOptions { + features: "+v8a,+strict-align,+neon,+fp-armv8".into(), + max_atomic_width: Some(128), + stack_probes: StackProbeType::Inline, + endian: Endian::Big, + ..base::hermit::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/targets/aarch64_nintendo_switch_freestanding.rs b/compiler/rustc_target/src/spec/targets/aarch64_nintendo_switch_freestanding.rs index 9b81362b27d..61e4cad3fa2 100644 --- a/compiler/rustc_target/src/spec/targets/aarch64_nintendo_switch_freestanding.rs +++ b/compiler/rustc_target/src/spec/targets/aarch64_nintendo_switch_freestanding.rs @@ -19,7 +19,7 @@ pub(crate) fn target() -> Target { data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32".into(), arch: "aarch64".into(), options: TargetOptions { - features: "+v8a".into(), + features: "+v8a,+neon,+crypto,+crc".into(), linker_flavor: LinkerFlavor::Gnu(Cc::No, Lld::Yes), linker: Some("rust-lld".into()), link_script: Some(LINKER_SCRIPT.into()), diff --git a/compiler/rustc_target/src/spec/targets/armv7a_vex_v5_linker_script.ld b/compiler/rustc_target/src/spec/targets/armv7a_vex_v5_linker_script.ld index a4783de0183..0f3e6eeee19 100644 --- a/compiler/rustc_target/src/spec/targets/armv7a_vex_v5_linker_script.ld +++ b/compiler/rustc_target/src/spec/targets/armv7a_vex_v5_linker_script.ld @@ -17,15 +17,25 @@ PROVIDE(__vcodesig_type = 0); /* V5_SIG_TYPE_USER */ PROVIDE(__vcodesig_owner = 2); /* V5_SIG_OWNER_PARTNER */ PROVIDE(__vcodesig_options = 0); /* none (0) */ -PROVIDE(__user_ram_start = 0x03800000); -PROVIDE(__user_ram_length = 48M); -PROVIDE(__user_ram_end = __user_ram_start + __user_ram_length); /* 0x8000000 */ +__user_ram_start = 0x03800000; +__user_ram_end = 0x08000000; +/* (0x48 =) 72 MiB length */ +__user_ram_length = __user_ram_start - __user_ram_end; -PROVIDE(__code_signature_length = 0x20); +/* + * VEXos provides a method for pre-loading a "linked file" at a specified + * address in User RAM, conventionally near the end, after the primary + * program binary. We need to be sure not to place any data in that location, + * so we allow the user of this linker script to inform the start address of + * this blob. + */ +PROVIDE(__linked_file_length = 0); +PROVIDE(__linked_file_end = __user_ram_end); +PROVIDE(__linked_file_start = __linked_file_end - __linked_file_length); PROVIDE(__stack_length = 4M); -PROVIDE(__heap_end = __user_ram_end - __stack_length); -PROVIDE(__user_length = __heap_start - __user_ram_start); +PROVIDE(__stack_top = __linked_file_start); +PROVIDE(__stack_bottom = __linked_file_start - __stack_length); MEMORY { USER_RAM (RWX) : ORIGIN = __user_ram_start, LENGTH = __user_ram_length @@ -44,7 +54,7 @@ SECTIONS { LONG(__vcodesig_options) FILL(0) - . = __user_ram_start + __code_signature_length; + . = __user_ram_start + 0x20; } > USER_RAM /* @@ -125,7 +135,8 @@ SECTIONS { */ .heap (NOLOAD) : { __heap_start = .; - . = __heap_end; + . = __stack_bottom; + __heap_end = .; } > USER_RAM .stack (NOLOAD) : ALIGN(8) { diff --git a/compiler/rustc_target/src/spec/targets/x86_64_apple_darwin.rs b/compiler/rustc_target/src/spec/targets/x86_64_apple_darwin.rs index 53e2cb469ee..8892c50d844 100644 --- a/compiler/rustc_target/src/spec/targets/x86_64_apple_darwin.rs +++ b/compiler/rustc_target/src/spec/targets/x86_64_apple_darwin.rs @@ -7,7 +7,7 @@ pub(crate) fn target() -> Target { llvm_target, metadata: TargetMetadata { description: Some("x86_64 Apple macOS (10.12+, Sierra+)".into()), - tier: Some(1), + tier: Some(2), host_tools: Some(true), std: Some(true), }, diff --git a/compiler/rustc_target/src/target_features.rs b/compiler/rustc_target/src/target_features.rs index 507e938d5cc..e45300b59cc 100644 --- a/compiler/rustc_target/src/target_features.rs +++ b/compiler/rustc_target/src/target_features.rs @@ -767,6 +767,7 @@ static CSKY_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ static LOONGARCH_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ // tidy-alphabetical-start + ("32s", Unstable(sym::loongarch_target_feature), &[]), ("d", Stable, &["f"]), ("div32", Unstable(sym::loongarch_target_feature), &[]), ("f", Stable, &[]), diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/note_and_explain.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/note_and_explain.rs index f31a85ec07a..40285e5d0e9 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/note_and_explain.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/note_and_explain.rs @@ -537,7 +537,7 @@ impl<T> Trait<T> for X { } } TypeError::TargetFeatureCast(def_id) => { - let target_spans = find_attr!(tcx.get_all_attrs(def_id), AttributeKind::TargetFeature(.., span) => *span); + let target_spans = find_attr!(tcx.get_all_attrs(def_id), AttributeKind::TargetFeature{attr_span: span, was_forced: false, ..} => *span); diag.note( "functions with `#[target_feature]` can only be coerced to `unsafe` function pointers" ); diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs index 214a6e86d39..d768e0bf63f 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs @@ -275,8 +275,9 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { *err.long_ty_path() = long_ty_file; let mut suggested = false; + let mut noted_missing_impl = false; if is_try_conversion || is_question_mark { - suggested = self.try_conversion_context(&obligation, main_trait_predicate, &mut err); + (suggested, noted_missing_impl) = self.try_conversion_context(&obligation, main_trait_predicate, &mut err); } if let Some(ret_span) = self.return_type_span(&obligation) { @@ -335,6 +336,11 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { return err.emit(); } + let ty_span = match leaf_trait_predicate.self_ty().skip_binder().kind() { + ty::Adt(def, _) if def.did().is_local() + && !self.can_suggest_derive(&obligation, leaf_trait_predicate) => self.tcx.def_span(def.did()), + _ => DUMMY_SP, + }; if let Some(s) = label { // If it has a custom `#[rustc_on_unimplemented]` // error message, let's display it as the label! @@ -347,15 +353,28 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { // Don't say "the trait `FromResidual<Option<Infallible>>` is // not implemented for `Result<T, E>`". { - err.help(explanation); + // We do this just so that the JSON output's `help` position is the + // right one and not `file.rs:1:1`. The render is the same. + if ty_span == DUMMY_SP { + err.help(explanation); + } else { + err.span_help(ty_span, explanation); + } } } else if let Some(custom_explanation) = safe_transmute_explanation { err.span_label(span, custom_explanation); - } else if explanation.len() > self.tcx.sess.diagnostic_width() { + } else if (explanation.len() > self.tcx.sess.diagnostic_width() || ty_span != DUMMY_SP) && !noted_missing_impl { // Really long types don't look good as span labels, instead move it // to a `help`. err.span_label(span, "unsatisfied trait bound"); - err.help(explanation); + + // We do this just so that the JSON output's `help` position is the + // right one and not `file.rs:1:1`. The render is the same. + if ty_span == DUMMY_SP { + err.help(explanation); + } else { + err.span_help(ty_span, explanation); + } } else { err.span_label(span, explanation); } @@ -939,7 +958,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { obligation: &PredicateObligation<'tcx>, trait_pred: ty::PolyTraitPredicate<'tcx>, err: &mut Diag<'_>, - ) -> bool { + ) -> (bool, bool) { let span = obligation.cause.span; /// Look for the (direct) sub-expr of `?`, and return it if it's a `.` method call. struct FindMethodSubexprOfTry { @@ -959,21 +978,22 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { } } let hir_id = self.tcx.local_def_id_to_hir_id(obligation.cause.body_id); - let Some(body_id) = self.tcx.hir_node(hir_id).body_id() else { return false }; + let Some(body_id) = self.tcx.hir_node(hir_id).body_id() else { return (false, false) }; let ControlFlow::Break(expr) = (FindMethodSubexprOfTry { search_span: span }).visit_body(self.tcx.hir_body(body_id)) else { - return false; + return (false, false); }; let Some(typeck) = &self.typeck_results else { - return false; + return (false, false); }; let ObligationCauseCode::QuestionMark = obligation.cause.code().peel_derives() else { - return false; + return (false, false); }; let self_ty = trait_pred.skip_binder().self_ty(); let found_ty = trait_pred.skip_binder().trait_ref.args.get(1).and_then(|a| a.as_type()); - self.note_missing_impl_for_question_mark(err, self_ty, found_ty, trait_pred); + let noted_missing_impl = + self.note_missing_impl_for_question_mark(err, self_ty, found_ty, trait_pred); let mut prev_ty = self.resolve_vars_if_possible( typeck.expr_ty_adjusted_opt(expr).unwrap_or(Ty::new_misc_error(self.tcx)), @@ -1137,7 +1157,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { } prev = Some(err_ty); } - suggested + (suggested, noted_missing_impl) } fn note_missing_impl_for_question_mark( @@ -1146,7 +1166,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { self_ty: Ty<'_>, found_ty: Option<Ty<'_>>, trait_pred: ty::PolyTraitPredicate<'tcx>, - ) { + ) -> bool { match (self_ty.kind(), found_ty) { (ty::Adt(def, _), Some(ty)) if let ty::Adt(found, _) = ty.kind() @@ -1187,8 +1207,9 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { format!("`{ty}` needs to implement `Into<{self_ty}>`"), ); } - _ => {} + _ => return false, } + true } fn report_const_param_not_wf( diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs index bc8c8a44405..e31ff8b8729 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs @@ -2878,7 +2878,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { // we check if `TraitB` can be reachable from `S` // to determine whether to note `TraitA` is sealed trait. if let ty::Adt(adt, _) = ty.kind() { - let visibilities = tcx.effective_visibilities(()); + let visibilities = &tcx.resolutions(()).effective_visibilities; visibilities.effective_vis(local).is_none_or(|v| { v.at_level(Level::Reexported) .is_accessible_from(adt.did(), tcx) @@ -3853,59 +3853,71 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { } } - pub fn suggest_derive( + pub fn can_suggest_derive( &self, obligation: &PredicateObligation<'tcx>, - err: &mut Diag<'_>, trait_pred: ty::PolyTraitPredicate<'tcx>, - ) { + ) -> bool { if trait_pred.polarity() == ty::PredicatePolarity::Negative { - return; + return false; } let Some(diagnostic_name) = self.tcx.get_diagnostic_name(trait_pred.def_id()) else { - return; + return false; }; let (adt, args) = match trait_pred.skip_binder().self_ty().kind() { ty::Adt(adt, args) if adt.did().is_local() => (adt, args), - _ => return, + _ => return false, }; - let can_derive = { - let is_derivable_trait = match diagnostic_name { - sym::Default => !adt.is_enum(), - sym::PartialEq | sym::PartialOrd => { - let rhs_ty = trait_pred.skip_binder().trait_ref.args.type_at(1); - trait_pred.skip_binder().self_ty() == rhs_ty - } - sym::Eq | sym::Ord | sym::Clone | sym::Copy | sym::Hash | sym::Debug => true, - _ => false, - }; - is_derivable_trait && - // Ensure all fields impl the trait. - adt.all_fields().all(|field| { - let field_ty = ty::GenericArg::from(field.ty(self.tcx, args)); - let trait_args = match diagnostic_name { - sym::PartialEq | sym::PartialOrd => { - Some(field_ty) - } - _ => None, - }; - let trait_pred = trait_pred.map_bound_ref(|tr| ty::TraitPredicate { - trait_ref: ty::TraitRef::new(self.tcx, - trait_pred.def_id(), - [field_ty].into_iter().chain(trait_args), - ), - ..*tr - }); - let field_obl = Obligation::new( - self.tcx, - obligation.cause.clone(), - obligation.param_env, - trait_pred, - ); - self.predicate_must_hold_modulo_regions(&field_obl) - }) + let is_derivable_trait = match diagnostic_name { + sym::Default => !adt.is_enum(), + sym::PartialEq | sym::PartialOrd => { + let rhs_ty = trait_pred.skip_binder().trait_ref.args.type_at(1); + trait_pred.skip_binder().self_ty() == rhs_ty + } + sym::Eq | sym::Ord | sym::Clone | sym::Copy | sym::Hash | sym::Debug => true, + _ => false, + }; + is_derivable_trait && + // Ensure all fields impl the trait. + adt.all_fields().all(|field| { + let field_ty = ty::GenericArg::from(field.ty(self.tcx, args)); + let trait_args = match diagnostic_name { + sym::PartialEq | sym::PartialOrd => { + Some(field_ty) + } + _ => None, + }; + let trait_pred = trait_pred.map_bound_ref(|tr| ty::TraitPredicate { + trait_ref: ty::TraitRef::new(self.tcx, + trait_pred.def_id(), + [field_ty].into_iter().chain(trait_args), + ), + ..*tr + }); + let field_obl = Obligation::new( + self.tcx, + obligation.cause.clone(), + obligation.param_env, + trait_pred, + ); + self.predicate_must_hold_modulo_regions(&field_obl) + }) + } + + pub fn suggest_derive( + &self, + obligation: &PredicateObligation<'tcx>, + err: &mut Diag<'_>, + trait_pred: ty::PolyTraitPredicate<'tcx>, + ) { + let Some(diagnostic_name) = self.tcx.get_diagnostic_name(trait_pred.def_id()) else { + return; + }; + let adt = match trait_pred.skip_binder().self_ty().kind() { + ty::Adt(adt, _) if adt.did().is_local() => adt, + _ => return, }; - if can_derive { + if self.can_suggest_derive(obligation, trait_pred) { err.span_suggestion_verbose( self.tcx.def_span(adt.did()).shrink_to_lo(), format!( diff --git a/compiler/rustc_trait_selection/src/opaque_types.rs b/compiler/rustc_trait_selection/src/opaque_types.rs index d5bde9192d5..bc7bdd372ba 100644 --- a/compiler/rustc_trait_selection/src/opaque_types.rs +++ b/compiler/rustc_trait_selection/src/opaque_types.rs @@ -4,8 +4,8 @@ use rustc_hir::def_id::LocalDefId; use rustc_infer::infer::outlives::env::OutlivesEnvironment; use rustc_infer::infer::{InferCtxt, TyCtxtInferExt}; use rustc_middle::ty::{ - self, DefiningScopeKind, GenericArgKind, GenericArgs, OpaqueTypeKey, TyCtxt, TypeVisitableExt, - TypingMode, fold_regions, + self, DefiningScopeKind, GenericArgKind, GenericArgs, OpaqueTypeKey, Ty, TyCtxt, + TypeVisitableExt, TypingMode, fold_regions, }; use rustc_span::{ErrorGuaranteed, Span}; @@ -13,22 +13,23 @@ use crate::errors::NonGenericOpaqueTypeParam; use crate::regions::OutlivesEnvironmentBuildExt; use crate::traits::ObligationCtxt; -pub enum InvalidOpaqueTypeArgs<'tcx> { - AlreadyReported(ErrorGuaranteed), +#[derive(Debug)] +pub enum NonDefiningUseReason<'tcx> { + Tainted(ErrorGuaranteed), NotAParam { opaque_type_key: OpaqueTypeKey<'tcx>, param_index: usize, span: Span }, DuplicateParam { opaque_type_key: OpaqueTypeKey<'tcx>, param_indices: Vec<usize>, span: Span }, } -impl From<ErrorGuaranteed> for InvalidOpaqueTypeArgs<'_> { +impl From<ErrorGuaranteed> for NonDefiningUseReason<'_> { fn from(guar: ErrorGuaranteed) -> Self { - InvalidOpaqueTypeArgs::AlreadyReported(guar) + NonDefiningUseReason::Tainted(guar) } } -impl<'tcx> InvalidOpaqueTypeArgs<'tcx> { +impl<'tcx> NonDefiningUseReason<'tcx> { pub fn report(self, infcx: &InferCtxt<'tcx>) -> ErrorGuaranteed { let tcx = infcx.tcx; match self { - InvalidOpaqueTypeArgs::AlreadyReported(guar) => guar, - InvalidOpaqueTypeArgs::NotAParam { opaque_type_key, param_index, span } => { + NonDefiningUseReason::Tainted(guar) => guar, + NonDefiningUseReason::NotAParam { opaque_type_key, param_index, span } => { let opaque_generics = tcx.generics_of(opaque_type_key.def_id); let opaque_param = opaque_generics.param_at(param_index, tcx); let kind = opaque_param.kind.descr(); @@ -39,7 +40,7 @@ impl<'tcx> InvalidOpaqueTypeArgs<'tcx> { param_span: tcx.def_span(opaque_param.def_id), }) } - InvalidOpaqueTypeArgs::DuplicateParam { opaque_type_key, param_indices, span } => { + NonDefiningUseReason::DuplicateParam { opaque_type_key, param_indices, span } => { let opaque_generics = tcx.generics_of(opaque_type_key.def_id); let descr = opaque_generics.param_at(param_indices[0], tcx).kind.descr(); let spans: Vec<_> = param_indices @@ -57,15 +58,17 @@ impl<'tcx> InvalidOpaqueTypeArgs<'tcx> { } /// Opaque type parameter validity check as documented in the [rustc-dev-guide chapter]. +/// With the new solver, uses which fail this check are simply treated as non-defining +/// and we only emit an error if no defining use exists. /// /// [rustc-dev-guide chapter]: /// https://rustc-dev-guide.rust-lang.org/opaque-types-region-infer-restrictions.html -pub fn check_opaque_type_parameter_valid<'tcx>( +pub fn opaque_type_has_defining_use_args<'tcx>( infcx: &InferCtxt<'tcx>, opaque_type_key: OpaqueTypeKey<'tcx>, span: Span, defining_scope_kind: DefiningScopeKind, -) -> Result<(), InvalidOpaqueTypeArgs<'tcx>> { +) -> Result<(), NonDefiningUseReason<'tcx>> { let tcx = infcx.tcx; let opaque_env = LazyOpaqueTyEnv::new(tcx, opaque_type_key.def_id); let mut seen_params: FxIndexMap<_, Vec<_>> = FxIndexMap::default(); @@ -104,13 +107,13 @@ pub fn check_opaque_type_parameter_valid<'tcx>( } else { // Prevent `fn foo() -> Foo<u32>` from being defining. opaque_env.param_is_error(i)?; - return Err(InvalidOpaqueTypeArgs::NotAParam { opaque_type_key, param_index: i, span }); + return Err(NonDefiningUseReason::NotAParam { opaque_type_key, param_index: i, span }); } } for (_, param_indices) in seen_params { if param_indices.len() > 1 { - return Err(InvalidOpaqueTypeArgs::DuplicateParam { + return Err(NonDefiningUseReason::DuplicateParam { opaque_type_key, param_indices, span, @@ -205,3 +208,27 @@ impl<'tcx> LazyOpaqueTyEnv<'tcx> { canonical_args } } + +pub fn report_item_does_not_constrain_error<'tcx>( + tcx: TyCtxt<'tcx>, + item_def_id: LocalDefId, + def_id: LocalDefId, + non_defining_use: Option<(OpaqueTypeKey<'tcx>, Span)>, +) -> ErrorGuaranteed { + let span = tcx.def_ident_span(item_def_id).unwrap_or_else(|| tcx.def_span(item_def_id)); + let opaque_type_span = tcx.def_span(def_id); + let opaque_type_name = tcx.def_path_str(def_id); + + let mut err = + tcx.dcx().struct_span_err(span, format!("item does not constrain `{opaque_type_name}`")); + err.note("consider removing `#[define_opaque]` or adding an empty `#[define_opaque()]`"); + err.span_note(opaque_type_span, "this opaque type is supposed to be constrained"); + if let Some((key, span)) = non_defining_use { + let opaque_ty = Ty::new_opaque(tcx, key.def_id.into(), key.args); + err.span_note( + span, + format!("this use of `{opaque_ty}` does not have unique universal generic arguments"), + ); + } + err.emit() +} diff --git a/compiler/rustc_trait_selection/src/solve/fulfill.rs b/compiler/rustc_trait_selection/src/solve/fulfill.rs index 3f628d80662..575e0472e0e 100644 --- a/compiler/rustc_trait_selection/src/solve/fulfill.rs +++ b/compiler/rustc_trait_selection/src/solve/fulfill.rs @@ -252,7 +252,9 @@ where // inside of an opaque type, e.g. if there's `Opaque = (?x, ?x)` in the // storage, we can also rely on structural identity of `?x` even if we // later uniquify it in MIR borrowck. - if infcx.in_hir_typeck && obligation.has_non_region_infer() { + if infcx.in_hir_typeck + && (obligation.has_non_region_infer() || obligation.has_free_regions()) + { infcx.push_hir_typeck_potentially_region_dependent_goal(obligation); } } diff --git a/compiler/rustc_trait_selection/src/traits/dyn_compatibility.rs b/compiler/rustc_trait_selection/src/traits/dyn_compatibility.rs index ea1eed95723..4b493c95d59 100644 --- a/compiler/rustc_trait_selection/src/traits/dyn_compatibility.rs +++ b/compiler/rustc_trait_selection/src/traits/dyn_compatibility.rs @@ -106,6 +106,10 @@ fn dyn_compatibility_violations_for_trait( if !spans.is_empty() { violations.push(DynCompatibilityViolation::SupertraitNonLifetimeBinder(spans)); } + let spans = super_predicates_are_unconditionally_const(tcx, trait_def_id); + if !spans.is_empty() { + violations.push(DynCompatibilityViolation::SupertraitConst(spans)); + } violations } @@ -247,16 +251,31 @@ fn super_predicates_have_non_lifetime_binders( tcx: TyCtxt<'_>, trait_def_id: DefId, ) -> SmallVec<[Span; 1]> { - // If non_lifetime_binders is disabled, then exit early - if !tcx.features().non_lifetime_binders() { - return SmallVec::new(); - } tcx.explicit_super_predicates_of(trait_def_id) .iter_identity_copied() .filter_map(|(pred, span)| pred.has_non_region_bound_vars().then_some(span)) .collect() } +/// Checks for `const Trait` supertraits. We're okay with `[const] Trait`, +/// supertraits since for a non-const instantiation of that trait, the +/// conditionally-const supertrait is also not required to be const. +fn super_predicates_are_unconditionally_const( + tcx: TyCtxt<'_>, + trait_def_id: DefId, +) -> SmallVec<[Span; 1]> { + tcx.explicit_super_predicates_of(trait_def_id) + .iter_identity_copied() + .filter_map(|(pred, span)| { + if let ty::ClauseKind::HostEffect(_) = pred.kind().skip_binder() { + Some(span) + } else { + None + } + }) + .collect() +} + fn trait_has_sized_self(tcx: TyCtxt<'_>, trait_def_id: DefId) -> bool { tcx.generics_require_sized_self(trait_def_id) } diff --git a/compiler/rustc_trait_selection/src/traits/query/type_op/custom.rs b/compiler/rustc_trait_selection/src/traits/query/type_op/custom.rs index 0ca2d216228..6ce68507d65 100644 --- a/compiler/rustc_trait_selection/src/traits/query/type_op/custom.rs +++ b/compiler/rustc_trait_selection/src/traits/query/type_op/custom.rs @@ -1,6 +1,7 @@ use std::fmt; use rustc_errors::ErrorGuaranteed; +use rustc_hir::def_id::LocalDefId; use rustc_infer::infer::region_constraints::RegionConstraintData; use rustc_middle::traits::query::NoSolution; use rustc_middle::ty::{TyCtxt, TypeFoldable}; @@ -42,13 +43,14 @@ where fn fully_perform( self, infcx: &InferCtxt<'tcx>, + root_def_id: LocalDefId, span: Span, ) -> Result<TypeOpOutput<'tcx, Self>, ErrorGuaranteed> { if cfg!(debug_assertions) { info!("fully_perform({:?})", self); } - Ok(scrape_region_constraints(infcx, self.closure, self.description, span)?.0) + Ok(scrape_region_constraints(infcx, root_def_id, self.description, span, self.closure)?.0) } } @@ -62,9 +64,10 @@ impl<F> fmt::Debug for CustomTypeOp<F> { /// constraints that result, creating query-region-constraints. pub fn scrape_region_constraints<'tcx, Op, R>( infcx: &InferCtxt<'tcx>, - op: impl FnOnce(&ObligationCtxt<'_, 'tcx>) -> Result<R, NoSolution>, + root_def_id: LocalDefId, name: &'static str, span: Span, + op: impl FnOnce(&ObligationCtxt<'_, 'tcx>) -> Result<R, NoSolution>, ) -> Result<(TypeOpOutput<'tcx, Op>, RegionConstraintData<'tcx>), ErrorGuaranteed> where R: TypeFoldable<TyCtxt<'tcx>>, @@ -94,6 +97,8 @@ where let errors = ocx.select_all_or_error(); if errors.is_empty() { Ok(value) + } else if let Err(guar) = infcx.tcx.check_potentially_region_dependent_goals(root_def_id) { + Err(guar) } else { Err(infcx .dcx() diff --git a/compiler/rustc_trait_selection/src/traits/query/type_op/mod.rs b/compiler/rustc_trait_selection/src/traits/query/type_op/mod.rs index 018e9748cf0..4b8bf868123 100644 --- a/compiler/rustc_trait_selection/src/traits/query/type_op/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/query/type_op/mod.rs @@ -1,6 +1,7 @@ use std::fmt; use rustc_errors::ErrorGuaranteed; +use rustc_hir::def_id::LocalDefId; use rustc_infer::traits::PredicateObligations; use rustc_middle::traits::query::NoSolution; use rustc_middle::ty::{ParamEnvAnd, TyCtxt, TypeFoldable}; @@ -37,6 +38,7 @@ pub trait TypeOp<'tcx>: Sized + fmt::Debug { fn fully_perform( self, infcx: &InferCtxt<'tcx>, + root_def_id: LocalDefId, span: Span, ) -> Result<TypeOpOutput<'tcx, Self>, ErrorGuaranteed>; } @@ -140,6 +142,7 @@ where fn fully_perform( self, infcx: &InferCtxt<'tcx>, + root_def_id: LocalDefId, span: Span, ) -> Result<TypeOpOutput<'tcx, Self>, ErrorGuaranteed> { // In the new trait solver, query type ops are performed locally. This @@ -152,9 +155,10 @@ where if infcx.next_trait_solver() { return Ok(scrape_region_constraints( infcx, - |ocx| QueryTypeOp::perform_locally_with_next_solver(ocx, self, span), + root_def_id, "query type op", span, + |ocx| QueryTypeOp::perform_locally_with_next_solver(ocx, self, span), )? .0); } @@ -166,19 +170,15 @@ where // we sometimes end up with `Opaque<'a> = Opaque<'b>` instead of an actual hidden type. In that case we don't register a // hidden type but just equate the lifetimes. Thus we need to scrape the region constraints even though we're also manually // collecting region constraints via `region_constraints`. - let (mut output, _) = scrape_region_constraints( - infcx, - |ocx| { + let (mut output, _) = + scrape_region_constraints(infcx, root_def_id, "fully_perform", span, |ocx| { let (output, ei, obligations, _) = Q::fully_perform_into(self, infcx, &mut region_constraints, span)?; error_info = ei; ocx.register_obligations(obligations); Ok(output) - }, - "fully_perform", - span, - )?; + })?; output.error_info = error_info; if let Some(QueryRegionConstraints { outlives, assumptions }) = output.constraints { region_constraints.outlives.extend(outlives.iter().cloned()); diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs index 468c42abf48..1dd31990ab7 100644 --- a/compiler/rustc_trait_selection/src/traits/select/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs @@ -4,9 +4,9 @@ use std::assert_matches::assert_matches; use std::cell::{Cell, RefCell}; +use std::cmp; use std::fmt::{self, Display}; use std::ops::ControlFlow; -use std::{cmp, iter}; use hir::def::DefKind; use rustc_data_structures::fx::{FxIndexMap, FxIndexSet}; @@ -2185,32 +2185,23 @@ impl<'tcx> SelectionContext<'_, 'tcx> { ty::Binder::dummy(vec![ty]) } - ty::Coroutine(coroutine_def_id, args) => { - match self.tcx().coroutine_movability(coroutine_def_id) { - hir::Movability::Static => { - unreachable!("tried to assemble `Sized` for static coroutine") - } - hir::Movability::Movable => { - if self.tcx().features().coroutine_clone() { - ty::Binder::dummy( - args.as_coroutine() - .upvar_tys() - .iter() - .chain([Ty::new_coroutine_witness( - self.tcx(), - coroutine_def_id, - self.tcx().mk_args(args.as_coroutine().parent_args()), - )]) - .collect::<Vec<_>>(), - ) - } else { - unreachable!( - "tried to assemble `Sized` for coroutine without enabled feature" - ) - } + ty::Coroutine(def_id, args) => match self.tcx().coroutine_movability(def_id) { + hir::Movability::Static => { + unreachable!("tried to assemble `Clone` for static coroutine") + } + hir::Movability::Movable => { + if self.tcx().features().coroutine_clone() { + ty::Binder::dummy(vec![ + args.as_coroutine().tupled_upvars_ty(), + Ty::new_coroutine_witness_for_coroutine(self.tcx(), def_id, args), + ]) + } else { + unreachable!( + "tried to assemble `Clone` for coroutine without enabled feature" + ) } } - } + }, ty::CoroutineWitness(def_id, args) => self .infcx @@ -2334,25 +2325,9 @@ impl<'tcx> SelectionContext<'_, 'tcx> { ty::Coroutine(def_id, args) => { let ty = self.infcx.shallow_resolve(args.as_coroutine().tupled_upvars_ty()); let tcx = self.tcx(); - let witness = Ty::new_coroutine_witness( - tcx, - def_id, - ty::GenericArgs::for_item(tcx, def_id, |def, _| match def.kind { - // HACK: Coroutine witnesse types are lifetime erased, so they - // never reference any lifetime args from the coroutine. We erase - // the regions here since we may get into situations where a - // coroutine is recursively contained within itself, leading to - // witness types that differ by region args. This means that - // cycle detection in fulfillment will not kick in, which leads - // to unnecessary overflows in async code. See the issue: - // <https://github.com/rust-lang/rust/issues/145151>. - ty::GenericParamDefKind::Lifetime => tcx.lifetimes.re_erased.into(), - ty::GenericParamDefKind::Type { .. } - | ty::GenericParamDefKind::Const { .. } => args[def.index as usize], - }), - ); + let witness = Ty::new_coroutine_witness_for_coroutine(tcx, def_id, args); ty::Binder::dummy(AutoImplConstituents { - types: [ty].into_iter().chain(iter::once(witness)).collect(), + types: vec![ty, witness], assumptions: vec![], }) } diff --git a/compiler/rustc_trait_selection/src/traits/util.rs b/compiler/rustc_trait_selection/src/traits/util.rs index 83c0969762f..335942d5bcc 100644 --- a/compiler/rustc_trait_selection/src/traits/util.rs +++ b/compiler/rustc_trait_selection/src/traits/util.rs @@ -9,8 +9,8 @@ pub use rustc_infer::traits::util::*; use rustc_middle::bug; use rustc_middle::ty::fast_reject::DeepRejectCtxt; use rustc_middle::ty::{ - self, PolyTraitPredicate, SizedTraitKind, TraitPredicate, TraitRef, Ty, TyCtxt, TypeFoldable, - TypeFolder, TypeSuperFoldable, TypeVisitableExt, + self, PolyTraitPredicate, PredicatePolarity, SizedTraitKind, TraitPredicate, TraitRef, Ty, + TyCtxt, TypeFoldable, TypeFolder, TypeSuperFoldable, TypeVisitableExt, }; pub use rustc_next_trait_solver::placeholder::BoundVarReplacer; use rustc_span::Span; @@ -427,7 +427,9 @@ pub(crate) fn lazily_elaborate_sizedness_candidate<'tcx>( return candidate; } - if obligation.predicate.polarity() != candidate.polarity() { + if obligation.predicate.polarity() != PredicatePolarity::Positive + || candidate.polarity() != PredicatePolarity::Positive + { return candidate; } diff --git a/compiler/rustc_traits/Cargo.toml b/compiler/rustc_traits/Cargo.toml index 04aef4e7b9e..9f40f4d5c23 100644 --- a/compiler/rustc_traits/Cargo.toml +++ b/compiler/rustc_traits/Cargo.toml @@ -6,7 +6,6 @@ edition = "2024" [dependencies] # tidy-alphabetical-start rustc_data_structures = { path = "../rustc_data_structures" } -rustc_hir = { path = "../rustc_hir" } rustc_infer = { path = "../rustc_infer" } rustc_middle = { path = "../rustc_middle" } rustc_span = { path = "../rustc_span" } diff --git a/compiler/rustc_traits/src/coroutine_witnesses.rs b/compiler/rustc_traits/src/coroutine_witnesses.rs index 8a2a0832ddb..20f9b013724 100644 --- a/compiler/rustc_traits/src/coroutine_witnesses.rs +++ b/compiler/rustc_traits/src/coroutine_witnesses.rs @@ -1,9 +1,9 @@ -use rustc_hir::def_id::DefId; use rustc_infer::infer::TyCtxtInferExt; use rustc_infer::infer::canonical::query_response::make_query_region_constraints; use rustc_infer::infer::resolve::OpportunisticRegionResolver; use rustc_infer::traits::{Obligation, ObligationCause}; use rustc_middle::ty::{self, Ty, TyCtxt, TypeFoldable, TypeVisitableExt, fold_regions}; +use rustc_span::def_id::DefId; use rustc_trait_selection::traits::{ObligationCtxt, with_replaced_escaping_bound_vars}; /// Return the set of types that should be taken into account when checking diff --git a/compiler/rustc_traits/src/dropck_outlives.rs b/compiler/rustc_traits/src/dropck_outlives.rs index 5eddad39e2b..d33ade7a9e1 100644 --- a/compiler/rustc_traits/src/dropck_outlives.rs +++ b/compiler/rustc_traits/src/dropck_outlives.rs @@ -1,5 +1,4 @@ use rustc_data_structures::fx::FxHashSet; -use rustc_hir::def_id::DefId; use rustc_infer::infer::TyCtxtInferExt; use rustc_infer::infer::canonical::{Canonical, QueryResponse}; use rustc_middle::bug; @@ -7,6 +6,7 @@ use rustc_middle::query::Providers; use rustc_middle::traits::query::{DropckConstraint, DropckOutlivesResult}; use rustc_middle::ty::{self, GenericArgs, TyCtxt}; use rustc_span::DUMMY_SP; +use rustc_span::def_id::DefId; use rustc_trait_selection::infer::InferCtxtBuilderExt; use rustc_trait_selection::traits::query::dropck_outlives::{ compute_dropck_outlives_inner, dtorck_constraint_for_ty_inner, diff --git a/compiler/rustc_ty_utils/src/abi.rs b/compiler/rustc_ty_utils/src/abi.rs index 89d1dd8cf23..e4ed084b073 100644 --- a/compiler/rustc_ty_utils/src/abi.rs +++ b/compiler/rustc_ty_utils/src/abi.rs @@ -356,6 +356,7 @@ fn arg_attrs_for_rust_scalar<'tcx>( if matches!(kind, PointerKind::SharedRef { frozen: true }) && !is_return { attrs.set(ArgAttribute::ReadOnly); + attrs.set(ArgAttribute::CapturesReadOnly); } } } diff --git a/compiler/rustc_type_ir/Cargo.toml b/compiler/rustc_type_ir/Cargo.toml index e7fee574dd4..d55e9b3b1be 100644 --- a/compiler/rustc_type_ir/Cargo.toml +++ b/compiler/rustc_type_ir/Cargo.toml @@ -12,6 +12,7 @@ indexmap = "2.0.0" rustc-hash = "2.0.0" rustc_ast_ir = { path = "../rustc_ast_ir", default-features = false } rustc_data_structures = { path = "../rustc_data_structures", optional = true } +rustc_error_messages = { path = "../rustc_error_messages", optional = true } rustc_index = { path = "../rustc_index", default-features = false } rustc_macros = { path = "../rustc_macros", optional = true } rustc_serialize = { path = "../rustc_serialize", optional = true } @@ -27,6 +28,7 @@ tracing = "0.1" default = ["nightly"] nightly = [ "dep:rustc_data_structures", + "dep:rustc_error_messages", "dep:rustc_macros", "dep:rustc_serialize", "dep:rustc_span", diff --git a/compiler/rustc_type_ir/src/infer_ctxt.rs b/compiler/rustc_type_ir/src/infer_ctxt.rs index e39b99e992b..b4462294700 100644 --- a/compiler/rustc_type_ir/src/infer_ctxt.rs +++ b/compiler/rustc_type_ir/src/infer_ctxt.rs @@ -148,10 +148,6 @@ pub trait InferCtxtLike: Sized { true } - fn in_hir_typeck(&self) -> bool { - false - } - fn typing_mode(&self) -> TypingMode<Self::Interner>; fn universe(&self) -> ty::UniverseIndex; diff --git a/compiler/rustc_type_ir/src/inherent.rs b/compiler/rustc_type_ir/src/inherent.rs index 1a6c99ce7de..569570b5783 100644 --- a/compiler/rustc_type_ir/src/inherent.rs +++ b/compiler/rustc_type_ir/src/inherent.rs @@ -91,6 +91,12 @@ pub trait Ty<I: Interner<Ty = Self>>: fn new_coroutine_witness(interner: I, def_id: I::DefId, args: I::GenericArgs) -> Self; + fn new_coroutine_witness_for_coroutine( + interner: I, + def_id: I::DefId, + coroutine_args: I::GenericArgs, + ) -> Self; + fn new_ptr(interner: I, ty: Self, mutbl: Mutability) -> Self; fn new_ref(interner: I, region: I::Region, ty: Self, mutbl: Mutability) -> Self; diff --git a/compiler/rustc_type_ir/src/ir_print.rs b/compiler/rustc_type_ir/src/ir_print.rs index 388ad09cb20..82bb8791b84 100644 --- a/compiler/rustc_type_ir/src/ir_print.rs +++ b/compiler/rustc_type_ir/src/ir_print.rs @@ -1,9 +1,9 @@ use std::fmt; use crate::{ - AliasTerm, AliasTy, Binder, CoercePredicate, ExistentialProjection, ExistentialTraitRef, FnSig, - HostEffectPredicate, Interner, NormalizesTo, OutlivesPredicate, PatternKind, - ProjectionPredicate, SubtypePredicate, TraitPredicate, TraitRef, + AliasTerm, AliasTy, Binder, ClosureKind, CoercePredicate, ExistentialProjection, + ExistentialTraitRef, FnSig, HostEffectPredicate, Interner, NormalizesTo, OutlivesPredicate, + PatternKind, ProjectionPredicate, SubtypePredicate, TraitPredicate, TraitRef, UnevaluatedConst, }; pub trait IrPrint<T> { @@ -70,3 +70,46 @@ where <I as IrPrint<OutlivesPredicate<I, T>>>::print(self, fmt) } } + +#[cfg(feature = "nightly")] +mod into_diag_arg_impls { + use rustc_error_messages::{DiagArgValue, IntoDiagArg}; + + use super::*; + + impl<I: Interner> IntoDiagArg for TraitRef<I> { + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { + self.to_string().into_diag_arg(path) + } + } + + impl<I: Interner> IntoDiagArg for ExistentialTraitRef<I> { + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { + self.to_string().into_diag_arg(path) + } + } + + impl<I: Interner> IntoDiagArg for UnevaluatedConst<I> { + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { + format!("{self:?}").into_diag_arg(path) + } + } + + impl<I: Interner> IntoDiagArg for FnSig<I> { + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { + format!("{self:?}").into_diag_arg(path) + } + } + + impl<I: Interner, T: IntoDiagArg> IntoDiagArg for Binder<I, T> { + fn into_diag_arg(self, path: &mut Option<std::path::PathBuf>) -> DiagArgValue { + self.skip_binder().into_diag_arg(path) + } + } + + impl IntoDiagArg for ClosureKind { + fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue { + DiagArgValue::Str(self.as_str().into()) + } + } +} diff --git a/compiler/rustc_type_ir/src/region_kind.rs b/compiler/rustc_type_ir/src/region_kind.rs index cca81dcb4a0..06048af0436 100644 --- a/compiler/rustc_type_ir/src/region_kind.rs +++ b/compiler/rustc_type_ir/src/region_kind.rs @@ -154,7 +154,7 @@ pub enum RegionKind<I: Interner> { /// parameters via `tcx.liberate_late_bound_regions`. They are then treated /// the same way as `ReEarlyParam` while inside of the function. /// - /// See <https://rustc-dev-guide.rust-lang.org/early-late-bound-params/early-late-bound-summary.html> for + /// See <https://rustc-dev-guide.rust-lang.org/early_late_parameters.html> for /// more info about early and late bound lifetime parameters. ReLateParam(I::LateParamRegion), diff --git a/library/Cargo.lock b/library/Cargo.lock index 656576d2d8e..8b860f69492 100644 --- a/library/Cargo.lock +++ b/library/Cargo.lock @@ -140,9 +140,9 @@ dependencies = [ [[package]] name = "libc" -version = "0.2.174" +version = "0.2.175" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1171693293099992e19cddea4e8b849964e9846f4acee11b3948bcc337be8776" +checksum = "6a82ae493e598baaea5209805c49bbf2ea7de956d50d7da0da1164f9c6d28543" dependencies = [ "rustc-std-workspace-core", ] @@ -169,9 +169,9 @@ dependencies = [ [[package]] name = "object" -version = "0.37.2" +version = "0.37.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b3e3d0a7419f081f4a808147e845310313a39f322d7ae1f996b7f001d6cbed04" +checksum = "ff76201f031d8863c38aa7f905eca4f53abbfa15f609db4277d44cd8938f33fe" dependencies = [ "memchr", "rustc-std-workspace-alloc", @@ -192,7 +192,6 @@ name = "panic_unwind" version = "0.0.0" dependencies = [ "alloc", - "cfg-if", "libc", "rustc-std-workspace-core", "unwind", @@ -336,9 +335,9 @@ dependencies = [ name = "std_detect" version = "0.1.5" dependencies = [ - "alloc", - "core", "libc", + "rustc-std-workspace-alloc", + "rustc-std-workspace-core", ] [[package]] diff --git a/library/Cargo.toml b/library/Cargo.toml index a79c17fc4f7..e30e6240942 100644 --- a/library/Cargo.toml +++ b/library/Cargo.toml @@ -59,4 +59,3 @@ rustflags = ["-Cpanic=abort"] rustc-std-workspace-core = { path = 'rustc-std-workspace-core' } rustc-std-workspace-alloc = { path = 'rustc-std-workspace-alloc' } rustc-std-workspace-std = { path = 'rustc-std-workspace-std' } -compiler_builtins = { path = "compiler-builtins/compiler-builtins" } diff --git a/library/alloc/src/alloc.rs b/library/alloc/src/alloc.rs index c9b98fa4e5a..76630a746dd 100644 --- a/library/alloc/src/alloc.rs +++ b/library/alloc/src/alloc.rs @@ -17,6 +17,7 @@ unsafe extern "Rust" { #[rustc_allocator] #[rustc_nounwind] #[rustc_std_internal_symbol] + #[rustc_allocator_zeroed_variant = "__rust_alloc_zeroed"] fn __rust_alloc(size: usize, align: usize) -> *mut u8; #[rustc_deallocator] #[rustc_nounwind] diff --git a/library/alloc/src/collections/btree/map.rs b/library/alloc/src/collections/btree/map.rs index c4e599222e5..8b6d86a2888 100644 --- a/library/alloc/src/collections/btree/map.rs +++ b/library/alloc/src/collections/btree/map.rs @@ -40,30 +40,15 @@ pub(super) const MIN_LEN: usize = node::MIN_LEN_AFTER_SPLIT; /// An ordered map based on a [B-Tree]. /// -/// B-Trees represent a fundamental compromise between cache-efficiency and actually minimizing -/// the amount of work performed in a search. In theory, a binary search tree (BST) is the optimal -/// choice for a sorted map, as a perfectly balanced BST performs the theoretical minimum amount of -/// comparisons necessary to find an element (log<sub>2</sub>n). However, in practice the way this -/// is done is *very* inefficient for modern computer architectures. In particular, every element -/// is stored in its own individually heap-allocated node. This means that every single insertion -/// triggers a heap-allocation, and every single comparison should be a cache-miss. Since these -/// are both notably expensive things to do in practice, we are forced to, at the very least, -/// reconsider the BST strategy. -/// -/// A B-Tree instead makes each node contain B-1 to 2B-1 elements in a contiguous array. By doing -/// this, we reduce the number of allocations by a factor of B, and improve cache efficiency in -/// searches. However, this does mean that searches will have to do *more* comparisons on average. -/// The precise number of comparisons depends on the node search strategy used. For optimal cache -/// efficiency, one could search the nodes linearly. For optimal comparisons, one could search -/// the node using binary search. As a compromise, one could also perform a linear search -/// that initially only checks every i<sup>th</sup> element for some choice of i. +/// Given a key type with a [total order], an ordered map stores its entries in key order. +/// That means that keys must be of a type that implements the [`Ord`] trait, +/// such that two keys can always be compared to determine their [`Ordering`]. +/// Examples of keys with a total order are strings with lexicographical order, +/// and numbers with their natural order. /// -/// Currently, our implementation simply performs naive linear search. This provides excellent -/// performance on *small* nodes of elements which are cheap to compare. However in the future we -/// would like to further explore choosing the optimal search strategy based on the choice of B, -/// and possibly other factors. Using linear search, searching for a random element is expected -/// to take B * log(n) comparisons, which is generally worse than a BST. In practice, -/// however, performance is excellent. +/// Iterators obtained from functions such as [`BTreeMap::iter`], [`BTreeMap::into_iter`], [`BTreeMap::values`], or +/// [`BTreeMap::keys`] produce their items in key order, and take worst-case logarithmic and +/// amortized constant time per item returned. /// /// It is a logic error for a key to be modified in such a way that the key's ordering relative to /// any other key, as determined by the [`Ord`] trait, changes while it is in the map. This is @@ -72,14 +57,6 @@ pub(super) const MIN_LEN: usize = node::MIN_LEN_AFTER_SPLIT; /// `BTreeMap` that observed the logic error and not result in undefined behavior. This could /// include panics, incorrect results, aborts, memory leaks, and non-termination. /// -/// Iterators obtained from functions such as [`BTreeMap::iter`], [`BTreeMap::into_iter`], [`BTreeMap::values`], or -/// [`BTreeMap::keys`] produce their items in order by key, and take worst-case logarithmic and -/// amortized constant time per item returned. -/// -/// [B-Tree]: https://en.wikipedia.org/wiki/B-tree -/// [`Cell`]: core::cell::Cell -/// [`RefCell`]: core::cell::RefCell -/// /// # Examples /// /// ``` @@ -169,6 +146,43 @@ pub(super) const MIN_LEN: usize = node::MIN_LEN_AFTER_SPLIT; /// // modify an entry before an insert with in-place mutation /// player_stats.entry("mana").and_modify(|mana| *mana += 200).or_insert(100); /// ``` +/// +/// # Background +/// +/// A B-tree is (like) a [binary search tree], but adapted to the natural granularity that modern +/// machines like to consume data at. This means that each node contains an entire array of elements, +/// instead of just a single element. +/// +/// B-Trees represent a fundamental compromise between cache-efficiency and actually minimizing +/// the amount of work performed in a search. In theory, a binary search tree (BST) is the optimal +/// choice for a sorted map, as a perfectly balanced BST performs the theoretical minimum number of +/// comparisons necessary to find an element (log<sub>2</sub>n). However, in practice the way this +/// is done is *very* inefficient for modern computer architectures. In particular, every element +/// is stored in its own individually heap-allocated node. This means that every single insertion +/// triggers a heap-allocation, and every comparison is a potential cache-miss due to the indirection. +/// Since both heap-allocations and cache-misses are notably expensive in practice, we are forced to, +/// at the very least, reconsider the BST strategy. +/// +/// A B-Tree instead makes each node contain B-1 to 2B-1 elements in a contiguous array. By doing +/// this, we reduce the number of allocations by a factor of B, and improve cache efficiency in +/// searches. However, this does mean that searches will have to do *more* comparisons on average. +/// The precise number of comparisons depends on the node search strategy used. For optimal cache +/// efficiency, one could search the nodes linearly. For optimal comparisons, one could search +/// the node using binary search. As a compromise, one could also perform a linear search +/// that initially only checks every i<sup>th</sup> element for some choice of i. +/// +/// Currently, our implementation simply performs naive linear search. This provides excellent +/// performance on *small* nodes of elements which are cheap to compare. However in the future we +/// would like to further explore choosing the optimal search strategy based on the choice of B, +/// and possibly other factors. Using linear search, searching for a random element is expected +/// to take B * log(n) comparisons, which is generally worse than a BST. In practice, +/// however, performance is excellent. +/// +/// [B-Tree]: https://en.wikipedia.org/wiki/B-tree +/// [binary search tree]: https://en.wikipedia.org/wiki/Binary_search_tree +/// [total order]: https://en.wikipedia.org/wiki/Total_order +/// [`Cell`]: core::cell::Cell +/// [`RefCell`]: core::cell::RefCell #[stable(feature = "rust1", since = "1.0.0")] #[cfg_attr(not(test), rustc_diagnostic_item = "BTreeMap")] #[rustc_insignificant_dtor] diff --git a/library/compiler-builtins/compiler-builtins/README.md b/library/compiler-builtins/compiler-builtins/README.md index 387b70c0499..2d92b7651f9 100644 --- a/library/compiler-builtins/compiler-builtins/README.md +++ b/library/compiler-builtins/compiler-builtins/README.md @@ -10,6 +10,16 @@ to be added as an explicit dependency in `Cargo.toml`. [`compiler-rt`]: https://github.com/llvm/llvm-project/tree/1b1dc505057322f4fa1110ef4f53c44347f52986/compiler-rt +## Configuration + +`compiler-builtins` can be configured with the following environment variables when the `c` feature +is enabled: + +- `LLVM_COMPILER_RT_LIB` +- `RUST_COMPILER_RT_ROOT` + +See `build.rs` for details. + ## Contributing See [CONTRIBUTING.md](CONTRIBUTING.md). diff --git a/library/compiler-builtins/compiler-builtins/build.rs b/library/compiler-builtins/compiler-builtins/build.rs index 43b978606e5..6e1d230e3cd 100644 --- a/library/compiler-builtins/compiler-builtins/build.rs +++ b/library/compiler-builtins/compiler-builtins/build.rs @@ -540,12 +540,20 @@ mod c { sources.extend(&[("__emutls_get_address", "emutls.c")]); } + // Optionally, link against a prebuilt llvm compiler-rt containing the builtins + // library. Only the builtins library is required. On many platforms, this is + // available as a library named libclang_rt.builtins.a. + let link_against_prebuilt_rt = env::var_os("LLVM_COMPILER_RT_LIB").is_some(); + // When compiling the C code we require the user to tell us where the // source code is, and this is largely done so when we're compiling as // part of rust-lang/rust we can use the same llvm-project repository as // rust-lang/rust. let root = match env::var_os("RUST_COMPILER_RT_ROOT") { Some(s) => PathBuf::from(s), + // If a prebuild libcompiler-rt is provided, set a valid + // path to simplify later logic. Nothing should be compiled. + None if link_against_prebuilt_rt => PathBuf::new(), None => { panic!( "RUST_COMPILER_RT_ROOT is not set. You may need to run \ @@ -553,7 +561,7 @@ mod c { ); } }; - if !root.exists() { + if !link_against_prebuilt_rt && !root.exists() { panic!("RUST_COMPILER_RT_ROOT={} does not exist", root.display()); } @@ -569,7 +577,7 @@ mod c { let src_dir = root.join("lib/builtins"); if target.arch == "aarch64" && target.env != "msvc" && target.os != "uefi" { // See below for why we're building these as separate libraries. - build_aarch64_out_of_line_atomics_libraries(&src_dir, cfg); + build_aarch64_out_of_line_atomics_libraries(&src_dir, cfg, link_against_prebuilt_rt); // Some run-time CPU feature detection is necessary, as well. let cpu_model_src = if src_dir.join("cpu_model.c").exists() { @@ -583,20 +591,45 @@ mod c { let mut added_sources = HashSet::new(); for (sym, src) in sources.map.iter() { let src = src_dir.join(src); - if added_sources.insert(src.clone()) { + if !link_against_prebuilt_rt && added_sources.insert(src.clone()) { cfg.file(&src); println!("cargo:rerun-if-changed={}", src.display()); } println!("cargo:rustc-cfg={}=\"optimized-c\"", sym); } - cfg.compile("libcompiler-rt.a"); + if link_against_prebuilt_rt { + let rt_builtins_ext = PathBuf::from(env::var_os("LLVM_COMPILER_RT_LIB").unwrap()); + if !rt_builtins_ext.exists() { + panic!( + "LLVM_COMPILER_RT_LIB={} does not exist", + rt_builtins_ext.display() + ); + } + if let Some(dir) = rt_builtins_ext.parent() { + println!("cargo::rustc-link-search=native={}", dir.display()); + } + if let Some(lib) = rt_builtins_ext.file_name() { + println!( + "cargo::rustc-link-lib=static:+verbatim={}", + lib.to_str().unwrap() + ); + } + } else { + cfg.compile("libcompiler-rt.a"); + } } - fn build_aarch64_out_of_line_atomics_libraries(builtins_dir: &Path, cfg: &mut cc::Build) { + fn build_aarch64_out_of_line_atomics_libraries( + builtins_dir: &Path, + cfg: &mut cc::Build, + link_against_prebuilt_rt: bool, + ) { let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap()); let outlined_atomics_file = builtins_dir.join("aarch64").join("lse.S"); - println!("cargo:rerun-if-changed={}", outlined_atomics_file.display()); + if !link_against_prebuilt_rt { + println!("cargo:rerun-if-changed={}", outlined_atomics_file.display()); + } cfg.include(&builtins_dir); @@ -609,6 +642,13 @@ mod c { for (model_number, model_name) in &[(1, "relax"), (2, "acq"), (3, "rel"), (4, "acq_rel")] { + let sym = format!("__aarch64_{}{}_{}", instruction_type, size, model_name); + println!("cargo:rustc-cfg={}=\"optimized-c\"", sym); + + if link_against_prebuilt_rt { + continue; + } + // The original compiler-rt build system compiles the same // source file multiple times with different compiler // options. Here we do something slightly different: we @@ -632,9 +672,6 @@ mod c { .unwrap(); drop(file); cfg.file(path); - - let sym = format!("__aarch64_{}{}_{}", instruction_type, size, model_name); - println!("cargo:rustc-cfg={}=\"optimized-c\"", sym); } } } diff --git a/library/core/src/array/mod.rs b/library/core/src/array/mod.rs index b3a498570f9..bb75ec74c81 100644 --- a/library/core/src/array/mod.rs +++ b/library/core/src/array/mod.rs @@ -621,11 +621,11 @@ impl<T, const N: usize> [T; N] { /// assert_eq!(strings.len(), 3); /// ``` #[stable(feature = "array_methods", since = "1.77.0")] - #[rustc_const_unstable(feature = "const_array_each_ref", issue = "133289")] + #[rustc_const_stable(feature = "const_array_each_ref", since = "CURRENT_RUSTC_VERSION")] pub const fn each_ref(&self) -> [&T; N] { let mut buf = [null::<T>(); N]; - // FIXME(const-hack): We would like to simply use iterators for this (as in the original implementation), but this is not allowed in constant expressions. + // FIXME(const_trait_impl): We would like to simply use iterators for this (as in the original implementation), but this is not allowed in constant expressions. let mut i = 0; while i < N { buf[i] = &raw const self[i]; @@ -652,11 +652,11 @@ impl<T, const N: usize> [T; N] { /// assert_eq!(floats, [0.0, 2.7, -1.0]); /// ``` #[stable(feature = "array_methods", since = "1.77.0")] - #[rustc_const_unstable(feature = "const_array_each_ref", issue = "133289")] + #[rustc_const_stable(feature = "const_array_each_ref", since = "CURRENT_RUSTC_VERSION")] pub const fn each_mut(&mut self) -> [&mut T; N] { let mut buf = [null_mut::<T>(); N]; - // FIXME(const-hack): We would like to simply use iterators for this (as in the original implementation), but this is not allowed in constant expressions. + // FIXME(const_trait_impl): We would like to simply use iterators for this (as in the original implementation), but this is not allowed in constant expressions. let mut i = 0; while i < N { buf[i] = &raw mut self[i]; diff --git a/library/core/src/char/methods.rs b/library/core/src/char/methods.rs index 7ee0962721f..985e669c92d 100644 --- a/library/core/src/char/methods.rs +++ b/library/core/src/char/methods.rs @@ -1872,28 +1872,33 @@ pub const unsafe fn encode_utf8_raw_unchecked(code: u32, dst: *mut u8) { // SAFETY: The caller must guarantee that the buffer pointed to by `dst` // is at least `len` bytes long. unsafe { - match len { - 1 => { - *dst = code as u8; - } - 2 => { - *dst = (code >> 6 & 0x1F) as u8 | TAG_TWO_B; - *dst.add(1) = (code & 0x3F) as u8 | TAG_CONT; - } - 3 => { - *dst = (code >> 12 & 0x0F) as u8 | TAG_THREE_B; - *dst.add(1) = (code >> 6 & 0x3F) as u8 | TAG_CONT; - *dst.add(2) = (code & 0x3F) as u8 | TAG_CONT; - } - 4 => { - *dst = (code >> 18 & 0x07) as u8 | TAG_FOUR_B; - *dst.add(1) = (code >> 12 & 0x3F) as u8 | TAG_CONT; - *dst.add(2) = (code >> 6 & 0x3F) as u8 | TAG_CONT; - *dst.add(3) = (code & 0x3F) as u8 | TAG_CONT; - } - // SAFETY: `char` always takes between 1 and 4 bytes to encode in UTF-8. - _ => crate::hint::unreachable_unchecked(), + if len == 1 { + *dst = code as u8; + return; + } + + let last1 = (code >> 0 & 0x3F) as u8 | TAG_CONT; + let last2 = (code >> 6 & 0x3F) as u8 | TAG_CONT; + let last3 = (code >> 12 & 0x3F) as u8 | TAG_CONT; + let last4 = (code >> 18 & 0x3F) as u8 | TAG_FOUR_B; + + if len == 2 { + *dst = last2 | TAG_TWO_B; + *dst.add(1) = last1; + return; } + + if len == 3 { + *dst = last3 | TAG_THREE_B; + *dst.add(1) = last2; + *dst.add(2) = last1; + return; + } + + *dst = last4; + *dst.add(1) = last3; + *dst.add(2) = last2; + *dst.add(3) = last1; } } diff --git a/library/core/src/cmp.rs b/library/core/src/cmp.rs index a64fade285b..ab018fa2675 100644 --- a/library/core/src/cmp.rs +++ b/library/core/src/cmp.rs @@ -1554,6 +1554,9 @@ pub fn min<T: Ord>(v1: T, v2: T) -> T { /// /// Returns the first argument if the comparison determines them to be equal. /// +/// The parameter order is preserved when calling the `compare` function, i.e. `v1` is +/// always passed as the first argument and `v2` as the second. +/// /// # Examples /// /// ``` @@ -1574,7 +1577,7 @@ pub fn min<T: Ord>(v1: T, v2: T) -> T { #[must_use] #[stable(feature = "cmp_min_max_by", since = "1.53.0")] pub fn min_by<T, F: FnOnce(&T, &T) -> Ordering>(v1: T, v2: T, compare: F) -> T { - if compare(&v2, &v1).is_lt() { v2 } else { v1 } + if compare(&v1, &v2).is_le() { v1 } else { v2 } } /// Returns the element that gives the minimum value from the specified function. @@ -1646,6 +1649,9 @@ pub fn max<T: Ord>(v1: T, v2: T) -> T { /// /// Returns the second argument if the comparison determines them to be equal. /// +/// The parameter order is preserved when calling the `compare` function, i.e. `v1` is +/// always passed as the first argument and `v2` as the second. +/// /// # Examples /// /// ``` @@ -1666,7 +1672,7 @@ pub fn max<T: Ord>(v1: T, v2: T) -> T { #[must_use] #[stable(feature = "cmp_min_max_by", since = "1.53.0")] pub fn max_by<T, F: FnOnce(&T, &T) -> Ordering>(v1: T, v2: T, compare: F) -> T { - if compare(&v2, &v1).is_lt() { v1 } else { v2 } + if compare(&v1, &v2).is_gt() { v1 } else { v2 } } /// Returns the element that gives the maximum value from the specified function. @@ -1745,6 +1751,9 @@ where /// /// Returns `[v1, v2]` if the comparison determines them to be equal. /// +/// The parameter order is preserved when calling the `compare` function, i.e. `v1` is +/// always passed as the first argument and `v2` as the second. +/// /// # Examples /// /// ``` @@ -1769,7 +1778,7 @@ pub fn minmax_by<T, F>(v1: T, v2: T, compare: F) -> [T; 2] where F: FnOnce(&T, &T) -> Ordering, { - if compare(&v2, &v1).is_lt() { [v2, v1] } else { [v1, v2] } + if compare(&v1, &v2).is_le() { [v1, v2] } else { [v2, v1] } } /// Returns minimum and maximum values with respect to the specified key function. diff --git a/library/core/src/fmt/num.rs b/library/core/src/fmt/num.rs index 7d41ae45093..605ba42c541 100644 --- a/library/core/src/fmt/num.rs +++ b/library/core/src/fmt/num.rs @@ -3,164 +3,78 @@ use crate::fmt::NumBuffer; use crate::mem::MaybeUninit; use crate::num::fmt as numfmt; -use crate::ops::{Div, Rem, Sub}; use crate::{fmt, ptr, slice, str}; -#[doc(hidden)] -trait DisplayInt: - PartialEq + PartialOrd + Div<Output = Self> + Rem<Output = Self> + Sub<Output = Self> + Copy -{ - fn zero() -> Self; - fn from_u8(u: u8) -> Self; - fn to_u8(&self) -> u8; - #[cfg(not(any(target_pointer_width = "64", target_arch = "wasm32")))] - fn to_u32(&self) -> u32; - fn to_u64(&self) -> u64; - fn to_u128(&self) -> u128; -} +/// Formatting of integers with a non-decimal radix. +macro_rules! radix_integer { + (fmt::$Trait:ident for $Signed:ident and $Unsigned:ident, $prefix:literal, $dig_tab:literal) => { + #[stable(feature = "rust1", since = "1.0.0")] + impl fmt::$Trait for $Unsigned { + /// Format unsigned integers in the radix. + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + // Check macro arguments at compile time. + const { + assert!($Unsigned::MIN == 0, "need unsigned"); + assert!($dig_tab.is_ascii(), "need single-byte entries"); + } -macro_rules! impl_int { - ($($t:ident)*) => ( - $(impl DisplayInt for $t { - fn zero() -> Self { 0 } - fn from_u8(u: u8) -> Self { u as Self } - fn to_u8(&self) -> u8 { *self as u8 } - #[cfg(not(any(target_pointer_width = "64", target_arch = "wasm32")))] - fn to_u32(&self) -> u32 { *self as u32 } - fn to_u64(&self) -> u64 { *self as u64 } - fn to_u128(&self) -> u128 { *self as u128 } - })* - ) -} + // ASCII digits in ascending order are used as a lookup table. + const DIG_TAB: &[u8] = $dig_tab; + const BASE: $Unsigned = DIG_TAB.len() as $Unsigned; + const MAX_DIG_N: usize = $Unsigned::MAX.ilog(BASE) as usize + 1; -impl_int! { - i8 i16 i32 i64 i128 isize - u8 u16 u32 u64 u128 usize -} + // Buffer digits of self with right alignment. + let mut buf = [MaybeUninit::<u8>::uninit(); MAX_DIG_N]; + // Count the number of bytes in buf that are not initialized. + let mut offset = buf.len(); -/// A type that represents a specific radix -/// -/// # Safety -/// -/// `digit` must return an ASCII character. -#[doc(hidden)] -unsafe trait GenericRadix: Sized { - /// The number of digits. - const BASE: u8; - - /// A radix-specific prefix string. - const PREFIX: &'static str; - - /// Converts an integer to corresponding radix digit. - fn digit(x: u8) -> u8; - - /// Format an integer using the radix using a formatter. - fn fmt_int<T: DisplayInt>(&self, mut x: T, f: &mut fmt::Formatter<'_>) -> fmt::Result { - // The radix can be as low as 2, so we need a buffer of at least 128 - // characters for a base 2 number. - let zero = T::zero(); - let is_nonnegative = x >= zero; - let mut buf = [MaybeUninit::<u8>::uninit(); 128]; - let mut offset = buf.len(); - let base = T::from_u8(Self::BASE); - if is_nonnegative { - // Accumulate each digit of the number from the least significant - // to the most significant figure. - loop { - let n = x % base; // Get the current place value. - x = x / base; // Deaccumulate the number. - offset -= 1; - buf[offset].write(Self::digit(n.to_u8())); // Store the digit in the buffer. - if x == zero { - // No more digits left to accumulate. - break; - }; - } - } else { - // Do the same as above, but accounting for two's complement. - loop { - let n = zero - (x % base); // Get the current place value. - x = x / base; // Deaccumulate the number. - offset -= 1; - buf[offset].write(Self::digit(n.to_u8())); // Store the digit in the buffer. - if x == zero { - // No more digits left to accumulate. - break; - }; - } - } - // SAFETY: Starting from `offset`, all elements of the slice have been set. - let buf_slice = unsafe { slice_buffer_to_str(&buf, offset) }; - f.pad_integral(is_nonnegative, Self::PREFIX, buf_slice) - } -} + // Accumulate each digit of the number from the least + // significant to the most significant figure. + let mut remain = *self; + loop { + let digit = remain % BASE; + remain /= BASE; -/// A binary (base 2) radix -#[derive(Clone, PartialEq)] -struct Binary; - -/// An octal (base 8) radix -#[derive(Clone, PartialEq)] -struct Octal; - -/// A hexadecimal (base 16) radix, formatted with lower-case characters -#[derive(Clone, PartialEq)] -struct LowerHex; - -/// A hexadecimal (base 16) radix, formatted with upper-case characters -#[derive(Clone, PartialEq)] -struct UpperHex; - -macro_rules! radix { - ($T:ident, $base:expr, $prefix:expr, $($x:pat => $conv:expr),+) => { - unsafe impl GenericRadix for $T { - const BASE: u8 = $base; - const PREFIX: &'static str = $prefix; - fn digit(x: u8) -> u8 { - match x { - $($x => $conv,)+ - x => panic!("number not in the range 0..={}: {}", Self::BASE - 1, x), + offset -= 1; + // SAFETY: `remain` will reach 0 and we will break before `offset` wraps + unsafe { core::hint::assert_unchecked(offset < buf.len()) } + buf[offset].write(DIG_TAB[digit as usize]); + if remain == 0 { + break; + } } + + // SAFETY: Starting from `offset`, all elements of the slice have been set. + let digits = unsafe { slice_buffer_to_str(&buf, offset) }; + f.pad_integral(true, $prefix, digits) } } - } -} -radix! { Binary, 2, "0b", x @ 0 ..= 1 => b'0' + x } -radix! { Octal, 8, "0o", x @ 0 ..= 7 => b'0' + x } -radix! { LowerHex, 16, "0x", x @ 0 ..= 9 => b'0' + x, x @ 10 ..= 15 => b'a' + (x - 10) } -radix! { UpperHex, 16, "0x", x @ 0 ..= 9 => b'0' + x, x @ 10 ..= 15 => b'A' + (x - 10) } - -macro_rules! int_base { - (fmt::$Trait:ident for $T:ident as $U:ident -> $Radix:ident) => { #[stable(feature = "rust1", since = "1.0.0")] - impl fmt::$Trait for $T { + impl fmt::$Trait for $Signed { + /// Format signed integers in the two’s-complement form. fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - $Radix.fmt_int(*self as $U, f) + fmt::$Trait::fmt(&self.cast_unsigned(), f) } } }; } -macro_rules! integer { - ($Int:ident, $Uint:ident) => { - int_base! { fmt::Binary for $Int as $Uint -> Binary } - int_base! { fmt::Octal for $Int as $Uint -> Octal } - int_base! { fmt::LowerHex for $Int as $Uint -> LowerHex } - int_base! { fmt::UpperHex for $Int as $Uint -> UpperHex } - - int_base! { fmt::Binary for $Uint as $Uint -> Binary } - int_base! { fmt::Octal for $Uint as $Uint -> Octal } - int_base! { fmt::LowerHex for $Uint as $Uint -> LowerHex } - int_base! { fmt::UpperHex for $Uint as $Uint -> UpperHex } +/// Formatting of integers with a non-decimal radix. +macro_rules! radix_integers { + ($Signed:ident, $Unsigned:ident) => { + radix_integer! { fmt::Binary for $Signed and $Unsigned, "0b", b"01" } + radix_integer! { fmt::Octal for $Signed and $Unsigned, "0o", b"01234567" } + radix_integer! { fmt::LowerHex for $Signed and $Unsigned, "0x", b"0123456789abcdef" } + radix_integer! { fmt::UpperHex for $Signed and $Unsigned, "0x", b"0123456789ABCDEF" } }; } -integer! { isize, usize } -integer! { i8, u8 } -integer! { i16, u16 } -integer! { i32, u32 } -integer! { i64, u64 } -integer! { i128, u128 } +radix_integers! { isize, usize } +radix_integers! { i8, u8 } +radix_integers! { i16, u16 } +radix_integers! { i32, u32 } +radix_integers! { i64, u64 } +radix_integers! { i128, u128 } macro_rules! impl_Debug { ($($T:ident)*) => { @@ -205,16 +119,21 @@ unsafe fn slice_buffer_to_str(buf: &[MaybeUninit<u8>], offset: usize) -> &str { } macro_rules! impl_Display { - ($($signed:ident, $unsigned:ident,)* ; as $u:ident via $conv_fn:ident named $gen_name:ident) => { + ($($Signed:ident, $Unsigned:ident),* ; as $T:ident into $fmt_fn:ident) => { $( + const _: () = { + assert!($Signed::BITS <= $T::BITS, "need lossless conversion"); + assert!($Unsigned::BITS <= $T::BITS, "need lossless conversion"); + }; + #[stable(feature = "rust1", since = "1.0.0")] - impl fmt::Display for $unsigned { + impl fmt::Display for $Unsigned { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { #[cfg(not(feature = "optimize_for_size"))] { - const MAX_DEC_N: usize = $unsigned::MAX.ilog10() as usize + 1; - // Buffer decimals for $unsigned with right alignment. + const MAX_DEC_N: usize = $Unsigned::MAX.ilog10() as usize + 1; + // Buffer decimals for self with right alignment. let mut buf = [MaybeUninit::<u8>::uninit(); MAX_DEC_N]; // SAFETY: `buf` is always big enough to contain all the digits. @@ -222,18 +141,20 @@ macro_rules! impl_Display { } #[cfg(feature = "optimize_for_size")] { - $gen_name(self.$conv_fn(), true, f) + // Lossless conversion (with as) is asserted at the top of + // this macro. + ${concat($fmt_fn, _small)}(*self as $T, true, f) } } } #[stable(feature = "rust1", since = "1.0.0")] - impl fmt::Display for $signed { + impl fmt::Display for $Signed { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { #[cfg(not(feature = "optimize_for_size"))] { - const MAX_DEC_N: usize = $unsigned::MAX.ilog10() as usize + 1; - // Buffer decimals for $unsigned with right alignment. + const MAX_DEC_N: usize = $Unsigned::MAX.ilog10() as usize + 1; + // Buffer decimals for self with right alignment. let mut buf = [MaybeUninit::<u8>::uninit(); MAX_DEC_N]; // SAFETY: `buf` is always big enough to contain all the digits. @@ -241,13 +162,15 @@ macro_rules! impl_Display { } #[cfg(feature = "optimize_for_size")] { - return $gen_name(self.unsigned_abs().$conv_fn(), *self >= 0, f); + // Lossless conversion (with as) is asserted at the top of + // this macro. + return ${concat($fmt_fn, _small)}(self.unsigned_abs() as $T, *self >= 0, f); } } } #[cfg(not(feature = "optimize_for_size"))] - impl $unsigned { + impl $Unsigned { #[doc(hidden)] #[unstable( feature = "fmt_internals", @@ -268,7 +191,7 @@ macro_rules! impl_Display { let mut remain = self; // Format per four digits from the lookup table. - // Four digits need a 16-bit $unsigned or wider. + // Four digits need a 16-bit $Unsigned or wider. while size_of::<Self>() > 1 && remain > 999.try_into().expect("branch is not hit for types that cannot fit 999 (u8)") { // SAFETY: All of the decimals fit in buf due to MAX_DEC_N // and the while condition ensures at least 4 more decimals. @@ -327,7 +250,7 @@ macro_rules! impl_Display { } } - impl $signed { + impl $Signed { /// Allows users to write an integer (in signed decimal format) into a variable `buf` of /// type [`NumBuffer`] that is passed by the caller by mutable reference. /// @@ -337,15 +260,15 @@ macro_rules! impl_Display { /// #![feature(int_format_into)] /// use core::fmt::NumBuffer; /// - #[doc = concat!("let n = 0", stringify!($signed), ";")] + #[doc = concat!("let n = 0", stringify!($Signed), ";")] /// let mut buf = NumBuffer::new(); /// assert_eq!(n.format_into(&mut buf), "0"); /// - #[doc = concat!("let n1 = 32", stringify!($signed), ";")] + #[doc = concat!("let n1 = 32", stringify!($Signed), ";")] /// assert_eq!(n1.format_into(&mut buf), "32"); /// - #[doc = concat!("let n2 = ", stringify!($signed::MAX), ";")] - #[doc = concat!("assert_eq!(n2.format_into(&mut buf), ", stringify!($signed::MAX), ".to_string());")] + #[doc = concat!("let n2 = ", stringify!($Signed::MAX), ";")] + #[doc = concat!("assert_eq!(n2.format_into(&mut buf), ", stringify!($Signed::MAX), ".to_string());")] /// ``` #[unstable(feature = "int_format_into", issue = "138215")] pub fn format_into(self, buf: &mut NumBuffer<Self>) -> &str { @@ -358,7 +281,9 @@ macro_rules! impl_Display { } #[cfg(feature = "optimize_for_size")] { - offset = ${concat(_inner_slow_integer_to_str, $gen_name)}(self.unsigned_abs().$conv_fn(), &mut buf.buf); + // Lossless conversion (with as) is asserted at the top of + // this macro. + offset = ${concat($fmt_fn, _in_buf_small)}(self.unsigned_abs() as $T, &mut buf.buf); } // Only difference between signed and unsigned are these 4 lines. if self < 0 { @@ -370,7 +295,7 @@ macro_rules! impl_Display { } } - impl $unsigned { + impl $Unsigned { /// Allows users to write an integer (in signed decimal format) into a variable `buf` of /// type [`NumBuffer`] that is passed by the caller by mutable reference. /// @@ -380,15 +305,15 @@ macro_rules! impl_Display { /// #![feature(int_format_into)] /// use core::fmt::NumBuffer; /// - #[doc = concat!("let n = 0", stringify!($unsigned), ";")] + #[doc = concat!("let n = 0", stringify!($Unsigned), ";")] /// let mut buf = NumBuffer::new(); /// assert_eq!(n.format_into(&mut buf), "0"); /// - #[doc = concat!("let n1 = 32", stringify!($unsigned), ";")] + #[doc = concat!("let n1 = 32", stringify!($Unsigned), ";")] /// assert_eq!(n1.format_into(&mut buf), "32"); /// - #[doc = concat!("let n2 = ", stringify!($unsigned::MAX), ";")] - #[doc = concat!("assert_eq!(n2.format_into(&mut buf), ", stringify!($unsigned::MAX), ".to_string());")] + #[doc = concat!("let n2 = ", stringify!($Unsigned::MAX), ";")] + #[doc = concat!("assert_eq!(n2.format_into(&mut buf), ", stringify!($Unsigned::MAX), ".to_string());")] /// ``` #[unstable(feature = "int_format_into", issue = "138215")] pub fn format_into(self, buf: &mut NumBuffer<Self>) -> &str { @@ -401,7 +326,9 @@ macro_rules! impl_Display { } #[cfg(feature = "optimize_for_size")] { - offset = ${concat(_inner_slow_integer_to_str, $gen_name)}(self.$conv_fn(), &mut buf.buf); + // Lossless conversion (with as) is asserted at the top of + // this macro. + offset = ${concat($fmt_fn, _in_buf_small)}(self as $T, &mut buf.buf); } // SAFETY: Starting from `offset`, all elements of the slice have been set. unsafe { slice_buffer_to_str(&buf.buf, offset) } @@ -412,7 +339,7 @@ macro_rules! impl_Display { )* #[cfg(feature = "optimize_for_size")] - fn ${concat(_inner_slow_integer_to_str, $gen_name)}(mut n: $u, buf: &mut [MaybeUninit::<u8>]) -> usize { + fn ${concat($fmt_fn, _in_buf_small)}(mut n: $T, buf: &mut [MaybeUninit::<u8>]) -> usize { let mut curr = buf.len(); // SAFETY: To show that it's OK to copy into `buf_ptr`, notice that at the beginning @@ -433,11 +360,11 @@ macro_rules! impl_Display { } #[cfg(feature = "optimize_for_size")] - fn $gen_name(n: $u, is_nonnegative: bool, f: &mut fmt::Formatter<'_>) -> fmt::Result { - const MAX_DEC_N: usize = $u::MAX.ilog(10) as usize + 1; + fn ${concat($fmt_fn, _small)}(n: $T, is_nonnegative: bool, f: &mut fmt::Formatter<'_>) -> fmt::Result { + const MAX_DEC_N: usize = $T::MAX.ilog(10) as usize + 1; let mut buf = [MaybeUninit::<u8>::uninit(); MAX_DEC_N]; - let offset = ${concat(_inner_slow_integer_to_str, $gen_name)}(n, &mut buf); + let offset = ${concat($fmt_fn, _in_buf_small)}(n, &mut buf); // SAFETY: Starting from `offset`, all elements of the slice have been set. let buf_slice = unsafe { slice_buffer_to_str(&buf, offset) }; f.pad_integral(is_nonnegative, "", buf_slice) @@ -446,9 +373,9 @@ macro_rules! impl_Display { } macro_rules! impl_Exp { - ($($t:ident),* as $u:ident via $conv_fn:ident named $name:ident) => { - fn $name( - mut n: $u, + ($($Signed:ident, $Unsigned:ident),* ; as $T:ident into $fmt_fn:ident) => { + fn $fmt_fn( + mut n: $T, is_nonnegative: bool, upper: bool, f: &mut fmt::Formatter<'_> @@ -582,32 +509,41 @@ macro_rules! impl_Exp { $( #[stable(feature = "integer_exp_format", since = "1.42.0")] - impl fmt::LowerExp for $t { - #[allow(unused_comparisons)] + impl fmt::LowerExp for $Signed { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { let is_nonnegative = *self >= 0; let n = if is_nonnegative { - self.$conv_fn() + *self as $T } else { - // convert the negative num to positive by summing 1 to its 2s complement - (!self.$conv_fn()).wrapping_add(1) + self.unsigned_abs() as $T }; - $name(n, is_nonnegative, false, f) + $fmt_fn(n, is_nonnegative, false, f) + } + } + #[stable(feature = "integer_exp_format", since = "1.42.0")] + impl fmt::LowerExp for $Unsigned { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + $fmt_fn(*self as $T, true, false, f) } })* + $( #[stable(feature = "integer_exp_format", since = "1.42.0")] - impl fmt::UpperExp for $t { - #[allow(unused_comparisons)] + impl fmt::UpperExp for $Signed { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { let is_nonnegative = *self >= 0; let n = if is_nonnegative { - self.$conv_fn() + *self as $T } else { - // convert the negative num to positive by summing 1 to its 2s complement - (!self.$conv_fn()).wrapping_add(1) + self.unsigned_abs() as $T }; - $name(n, is_nonnegative, true, f) + $fmt_fn(n, is_nonnegative, true, f) + } + } + #[stable(feature = "integer_exp_format", since = "1.42.0")] + impl fmt::UpperExp for $Unsigned { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + $fmt_fn(*self as $T, true, true, f) } })* }; @@ -623,37 +559,20 @@ impl_Debug! { #[cfg(any(target_pointer_width = "64", target_arch = "wasm32"))] mod imp { use super::*; - impl_Display!( - i8, u8, - i16, u16, - i32, u32, - i64, u64, - isize, usize, - ; as u64 via to_u64 named fmt_u64 - ); - impl_Exp!( - i8, u8, i16, u16, i32, u32, i64, u64, usize, isize - as u64 via to_u64 named exp_u64 - ); + impl_Display!(i8, u8, i16, u16, i32, u32, i64, u64, isize, usize; as u64 into display_u64); + impl_Exp!(i8, u8, i16, u16, i32, u32, i64, u64, isize, usize; as u64 into exp_u64); } #[cfg(not(any(target_pointer_width = "64", target_arch = "wasm32")))] mod imp { use super::*; - impl_Display!( - i8, u8, - i16, u16, - i32, u32, - isize, usize, - ; as u32 via to_u32 named fmt_u32); - impl_Display!( - i64, u64, - ; as u64 via to_u64 named fmt_u64); - - impl_Exp!(i8, u8, i16, u16, i32, u32, isize, usize as u32 via to_u32 named exp_u32); - impl_Exp!(i64, u64 as u64 via to_u64 named exp_u64); + impl_Display!(i8, u8, i16, u16, i32, u32, isize, usize; as u32 into display_u32); + impl_Display!(i64, u64; as u64 into display_u64); + + impl_Exp!(i8, u8, i16, u16, i32, u32, isize, usize; as u32 into exp_u32); + impl_Exp!(i64, u64; as u64 into exp_u64); } -impl_Exp!(i128, u128 as u128 via to_u128 named exp_u128); +impl_Exp!(i128, u128; as u128 into exp_u128); const U128_MAX_DEC_N: usize = u128::MAX.ilog10() as usize + 1; diff --git a/library/core/src/intrinsics/mod.rs b/library/core/src/intrinsics/mod.rs index dd838d494bc..904aa52c784 100644 --- a/library/core/src/intrinsics/mod.rs +++ b/library/core/src/intrinsics/mod.rs @@ -261,53 +261,72 @@ pub unsafe fn atomic_fence<const ORD: AtomicOrdering>(); pub unsafe fn atomic_singlethreadfence<const ORD: AtomicOrdering>(); /// The `prefetch` intrinsic is a hint to the code generator to insert a prefetch instruction -/// if supported; otherwise, it is a no-op. +/// for the given address if supported; otherwise, it is a no-op. /// Prefetches have no effect on the behavior of the program but can change its performance /// characteristics. /// -/// The `locality` argument must be a constant integer and is a temporal locality specifier -/// ranging from (0) - no locality, to (3) - extremely local keep in cache. +/// The `LOCALITY` argument is a temporal locality specifier ranging from (0) - no locality, +/// to (3) - extremely local keep in cache. /// /// This intrinsic does not have a stable counterpart. #[rustc_intrinsic] #[rustc_nounwind] -pub unsafe fn prefetch_read_data<T>(data: *const T, locality: i32); +#[miri::intrinsic_fallback_is_spec] +pub const fn prefetch_read_data<T, const LOCALITY: i32>(data: *const T) { + // This operation is a no-op, unless it is overridden by the backend. + let _ = data; +} + /// The `prefetch` intrinsic is a hint to the code generator to insert a prefetch instruction -/// if supported; otherwise, it is a no-op. +/// for the given address if supported; otherwise, it is a no-op. /// Prefetches have no effect on the behavior of the program but can change its performance /// characteristics. /// -/// The `locality` argument must be a constant integer and is a temporal locality specifier -/// ranging from (0) - no locality, to (3) - extremely local keep in cache. +/// The `LOCALITY` argument is a temporal locality specifier ranging from (0) - no locality, +/// to (3) - extremely local keep in cache. /// /// This intrinsic does not have a stable counterpart. #[rustc_intrinsic] #[rustc_nounwind] -pub unsafe fn prefetch_write_data<T>(data: *const T, locality: i32); +#[miri::intrinsic_fallback_is_spec] +pub const fn prefetch_write_data<T, const LOCALITY: i32>(data: *const T) { + // This operation is a no-op, unless it is overridden by the backend. + let _ = data; +} + /// The `prefetch` intrinsic is a hint to the code generator to insert a prefetch instruction -/// if supported; otherwise, it is a no-op. +/// for the given address if supported; otherwise, it is a no-op. /// Prefetches have no effect on the behavior of the program but can change its performance /// characteristics. /// -/// The `locality` argument must be a constant integer and is a temporal locality specifier -/// ranging from (0) - no locality, to (3) - extremely local keep in cache. +/// The `LOCALITY` argument is a temporal locality specifier ranging from (0) - no locality, +/// to (3) - extremely local keep in cache. /// /// This intrinsic does not have a stable counterpart. #[rustc_intrinsic] #[rustc_nounwind] -pub unsafe fn prefetch_read_instruction<T>(data: *const T, locality: i32); +#[miri::intrinsic_fallback_is_spec] +pub const fn prefetch_read_instruction<T, const LOCALITY: i32>(data: *const T) { + // This operation is a no-op, unless it is overridden by the backend. + let _ = data; +} + /// The `prefetch` intrinsic is a hint to the code generator to insert a prefetch instruction -/// if supported; otherwise, it is a no-op. +/// for the given address if supported; otherwise, it is a no-op. /// Prefetches have no effect on the behavior of the program but can change its performance /// characteristics. /// -/// The `locality` argument must be a constant integer and is a temporal locality specifier -/// ranging from (0) - no locality, to (3) - extremely local keep in cache. +/// The `LOCALITY` argument is a temporal locality specifier ranging from (0) - no locality, +/// to (3) - extremely local keep in cache. /// /// This intrinsic does not have a stable counterpart. #[rustc_intrinsic] #[rustc_nounwind] -pub unsafe fn prefetch_write_instruction<T>(data: *const T, locality: i32); +#[miri::intrinsic_fallback_is_spec] +pub const fn prefetch_write_instruction<T, const LOCALITY: i32>(data: *const T) { + // This operation is a no-op, unless it is overridden by the backend. + let _ = data; +} /// Executes a breakpoint trap, for inspection by a debugger. /// diff --git a/library/core/src/lib.rs b/library/core/src/lib.rs index 71abd707374..f69d6a98592 100644 --- a/library/core/src/lib.rs +++ b/library/core/src/lib.rs @@ -172,6 +172,7 @@ #![feature(no_core)] #![feature(optimize_attribute)] #![feature(prelude_import)] +#![feature(reborrow)] #![feature(repr_simd)] #![feature(rustc_allow_const_fn_unstable)] #![feature(rustc_attrs)] diff --git a/library/core/src/marker.rs b/library/core/src/marker.rs index ba00ee17b65..8ad58599c68 100644 --- a/library/core/src/marker.rs +++ b/library/core/src/marker.rs @@ -1365,3 +1365,11 @@ pub macro CoercePointee($item:item) { pub trait CoercePointeeValidated { /* compiler built-in */ } + +/// Allows value to be reborrowed as exclusive, creating a copy of the value +/// that disables the source for reads and writes for the lifetime of the copy. +#[lang = "reborrow"] +#[unstable(feature = "reborrow", issue = "145612")] +pub trait Reborrow { + // Empty. +} diff --git a/library/core/src/num/dec2flt/mod.rs b/library/core/src/num/dec2flt/mod.rs index 1844cd98082..3118a6e5ca6 100644 --- a/library/core/src/num/dec2flt/mod.rs +++ b/library/core/src/num/dec2flt/mod.rs @@ -124,6 +124,8 @@ macro_rules! from_str_float_impl { /// * '2.5E-10' /// * '5.' /// * '.5', or, equivalently, '0.5' + /// * '7' + /// * '007' /// * 'inf', '-inf', '+infinity', 'NaN' /// /// Note that alphabetical characters are not case-sensitive. diff --git a/library/core/src/num/int_macros.rs b/library/core/src/num/int_macros.rs index bd2f7445612..25864db5fea 100644 --- a/library/core/src/num/int_macros.rs +++ b/library/core/src/num/int_macros.rs @@ -209,6 +209,48 @@ macro_rules! int_impl { self & self.wrapping_neg() } + /// Returns the index of the highest bit set to one in `self`, or `None` + /// if `self` is `0`. + /// + /// # Examples + /// + /// ``` + /// #![feature(int_lowest_highest_one)] + /// + #[doc = concat!("assert_eq!(0x0_", stringify!($SelfT), ".highest_one(), None);")] + #[doc = concat!("assert_eq!(0x1_", stringify!($SelfT), ".highest_one(), Some(0));")] + #[doc = concat!("assert_eq!(0x10_", stringify!($SelfT), ".highest_one(), Some(4));")] + #[doc = concat!("assert_eq!(0x1f_", stringify!($SelfT), ".highest_one(), Some(4));")] + /// ``` + #[unstable(feature = "int_lowest_highest_one", issue = "145203")] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline(always)] + pub const fn highest_one(self) -> Option<u32> { + (self as $UnsignedT).highest_one() + } + + /// Returns the index of the lowest bit set to one in `self`, or `None` + /// if `self` is `0`. + /// + /// # Examples + /// + /// ``` + /// #![feature(int_lowest_highest_one)] + /// + #[doc = concat!("assert_eq!(0x0_", stringify!($SelfT), ".lowest_one(), None);")] + #[doc = concat!("assert_eq!(0x1_", stringify!($SelfT), ".lowest_one(), Some(0));")] + #[doc = concat!("assert_eq!(0x10_", stringify!($SelfT), ".lowest_one(), Some(4));")] + #[doc = concat!("assert_eq!(0x1f_", stringify!($SelfT), ".lowest_one(), Some(0));")] + /// ``` + #[unstable(feature = "int_lowest_highest_one", issue = "145203")] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline(always)] + pub const fn lowest_one(self) -> Option<u32> { + (self as $UnsignedT).lowest_one() + } + /// Returns the bit pattern of `self` reinterpreted as an unsigned integer of the same size. /// /// This produces the same result as an `as` cast, but ensures that the bit-width remains @@ -2494,8 +2536,7 @@ macro_rules! int_impl { /// /// # Examples /// - /// Please note that this example is shared between integer types. - /// Which explains why `i32` is used here. + /// Please note that this example is shared among integer types, which is why `i32` is used. /// /// ``` /// #![feature(bigint_helper_methods)] @@ -2525,8 +2566,7 @@ macro_rules! int_impl { /// /// # Examples /// - /// Please note that this example is shared between integer types. - /// Which explains why `i32` is used here. + /// Please note that this example is shared among integer types, which is why `i32` is used. /// /// ``` /// #![feature(bigint_helper_methods)] @@ -2563,8 +2603,7 @@ macro_rules! int_impl { /// /// # Examples /// - /// Please note that this example is shared between integer types. - /// Which explains why `i32` is used here. + /// Please note that this example is shared among integer types, which is why `i32` is used. /// /// ``` /// #![feature(bigint_helper_methods)] diff --git a/library/core/src/num/nonzero.rs b/library/core/src/num/nonzero.rs index 308d722f5d5..e02d9260a16 100644 --- a/library/core/src/num/nonzero.rs +++ b/library/core/src/num/nonzero.rs @@ -681,6 +681,54 @@ macro_rules! nonzero_integer { unsafe { NonZero::new_unchecked(n) } } + /// Returns the index of the highest bit set to one in `self`. + /// + /// # Examples + /// + /// ``` + /// #![feature(int_lowest_highest_one)] + /// + /// # use core::num::NonZero; + /// # fn main() { test().unwrap(); } + /// # fn test() -> Option<()> { + #[doc = concat!("assert_eq!(NonZero::<", stringify!($Int), ">::new(0x1)?.highest_one(), 0);")] + #[doc = concat!("assert_eq!(NonZero::<", stringify!($Int), ">::new(0x10)?.highest_one(), 4);")] + #[doc = concat!("assert_eq!(NonZero::<", stringify!($Int), ">::new(0x1f)?.highest_one(), 4);")] + /// # Some(()) + /// # } + /// ``` + #[unstable(feature = "int_lowest_highest_one", issue = "145203")] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline(always)] + pub const fn highest_one(self) -> u32 { + Self::BITS - 1 - self.leading_zeros() + } + + /// Returns the index of the lowest bit set to one in `self`. + /// + /// # Examples + /// + /// ``` + /// #![feature(int_lowest_highest_one)] + /// + /// # use core::num::NonZero; + /// # fn main() { test().unwrap(); } + /// # fn test() -> Option<()> { + #[doc = concat!("assert_eq!(NonZero::<", stringify!($Int), ">::new(0x1)?.lowest_one(), 0);")] + #[doc = concat!("assert_eq!(NonZero::<", stringify!($Int), ">::new(0x10)?.lowest_one(), 4);")] + #[doc = concat!("assert_eq!(NonZero::<", stringify!($Int), ">::new(0x1f)?.lowest_one(), 0);")] + /// # Some(()) + /// # } + /// ``` + #[unstable(feature = "int_lowest_highest_one", issue = "145203")] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline(always)] + pub const fn lowest_one(self) -> u32 { + self.trailing_zeros() + } + /// Returns the number of ones in the binary representation of `self`. /// /// # Examples diff --git a/library/core/src/num/saturating.rs b/library/core/src/num/saturating.rs index c7040721b93..365a82a57e0 100644 --- a/library/core/src/num/saturating.rs +++ b/library/core/src/num/saturating.rs @@ -729,8 +729,8 @@ macro_rules! saturating_int_impl { /// /// # Examples /// - /// Please note that this example is shared between integer types. - /// Which explains why `i16` is used here. + /// Please note that this example is shared among integer types, which is why `i16` + /// is used. /// /// ``` /// use std::num::Saturating; diff --git a/library/core/src/num/uint_macros.rs b/library/core/src/num/uint_macros.rs index 0afad09bdc6..10d9498d15e 100644 --- a/library/core/src/num/uint_macros.rs +++ b/library/core/src/num/uint_macros.rs @@ -261,6 +261,54 @@ macro_rules! uint_impl { self & self.wrapping_neg() } + /// Returns the index of the highest bit set to one in `self`, or `None` + /// if `self` is `0`. + /// + /// # Examples + /// + /// ``` + /// #![feature(int_lowest_highest_one)] + /// + #[doc = concat!("assert_eq!(0x0_", stringify!($SelfT), ".highest_one(), None);")] + #[doc = concat!("assert_eq!(0x1_", stringify!($SelfT), ".highest_one(), Some(0));")] + #[doc = concat!("assert_eq!(0x10_", stringify!($SelfT), ".highest_one(), Some(4));")] + #[doc = concat!("assert_eq!(0x1f_", stringify!($SelfT), ".highest_one(), Some(4));")] + /// ``` + #[unstable(feature = "int_lowest_highest_one", issue = "145203")] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline(always)] + pub const fn highest_one(self) -> Option<u32> { + match NonZero::new(self) { + Some(v) => Some(v.highest_one()), + None => None, + } + } + + /// Returns the index of the lowest bit set to one in `self`, or `None` + /// if `self` is `0`. + /// + /// # Examples + /// + /// ``` + /// #![feature(int_lowest_highest_one)] + /// + #[doc = concat!("assert_eq!(0x0_", stringify!($SelfT), ".lowest_one(), None);")] + #[doc = concat!("assert_eq!(0x1_", stringify!($SelfT), ".lowest_one(), Some(0));")] + #[doc = concat!("assert_eq!(0x10_", stringify!($SelfT), ".lowest_one(), Some(4));")] + #[doc = concat!("assert_eq!(0x1f_", stringify!($SelfT), ".lowest_one(), Some(0));")] + /// ``` + #[unstable(feature = "int_lowest_highest_one", issue = "145203")] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline(always)] + pub const fn lowest_one(self) -> Option<u32> { + match NonZero::new(self) { + Some(v) => Some(v.lowest_one()), + None => None, + } + } + /// Returns the bit pattern of `self` reinterpreted as a signed integer of the same size. /// /// This produces the same result as an `as` cast, but ensures that the bit-width remains @@ -2115,8 +2163,7 @@ macro_rules! uint_impl { /// /// # Examples /// - /// Please note that this example is shared between integer types. - /// Which explains why `u8` is used here. + /// Please note that this example is shared among integer types, which is why `u8` is used. /// /// ``` /// assert_eq!(10u8.wrapping_mul(12), 120); @@ -2606,8 +2653,8 @@ macro_rules! uint_impl { /// /// # Examples /// - /// Please note that this example is shared between integer types. - /// Which explains why `u32` is used here. + /// Please note that this example is shared among integer types, which is why why `u32` + /// is used. /// /// ``` /// assert_eq!(5u32.overflowing_mul(2), (10, false)); @@ -2633,8 +2680,7 @@ macro_rules! uint_impl { /// /// # Examples /// - /// Please note that this example is shared between integer types. - /// Which explains why `u32` is used here. + /// Please note that this example is shared among integer types, which is why `u32` is used. /// /// ``` /// #![feature(bigint_helper_methods)] @@ -2664,8 +2710,7 @@ macro_rules! uint_impl { /// /// # Examples /// - /// Please note that this example is shared between integer types. - /// Which explains why `u32` is used here. + /// Please note that this example is shared among integer types, which is why `u32` is used. /// /// ``` /// #![feature(bigint_helper_methods)] diff --git a/library/core/src/num/wrapping.rs b/library/core/src/num/wrapping.rs index 9ccad4b6459..881fe615f80 100644 --- a/library/core/src/num/wrapping.rs +++ b/library/core/src/num/wrapping.rs @@ -765,8 +765,8 @@ macro_rules! wrapping_int_impl { /// /// # Examples /// - /// Please note that this example is shared between integer types. - /// Which explains why `i16` is used here. + /// Please note that this example is shared among integer types, which is why `i16` + /// is used. /// /// Basic usage: /// diff --git a/library/core/src/panic/location.rs b/library/core/src/panic/location.rs index 6ef7d5a22a3..cafdcfa2c2e 100644 --- a/library/core/src/panic/location.rs +++ b/library/core/src/panic/location.rs @@ -183,7 +183,7 @@ impl<'a> Location<'a> { #[must_use] #[stable(feature = "panic_hooks", since = "1.10.0")] #[rustc_const_stable(feature = "const_location_fields", since = "1.79.0")] - pub const fn file(&self) -> &str { + pub const fn file(&self) -> &'a str { // SAFETY: The filename is valid. unsafe { self.filename.as_ref() } } @@ -195,7 +195,7 @@ impl<'a> Location<'a> { #[must_use] #[unstable(feature = "file_with_nul", issue = "141727")] #[inline] - pub const fn file_with_nul(&self) -> &CStr { + pub const fn file_with_nul(&self) -> &'a CStr { let filename = self.filename.as_ptr(); // SAFETY: The filename is valid for `filename_len+1` bytes, so this addition can't diff --git a/library/core/src/pin/unsafe_pinned.rs b/library/core/src/pin/unsafe_pinned.rs index b18b5d7c9ec..ede6e0d6106 100644 --- a/library/core/src/pin/unsafe_pinned.rs +++ b/library/core/src/pin/unsafe_pinned.rs @@ -120,8 +120,8 @@ impl<T: ?Sized> UnsafePinned<T> { #[inline(always)] #[must_use] #[unstable(feature = "unsafe_pinned", issue = "125735")] - pub const fn raw_get(this: *const Self) -> *const T { - this as *const T + pub const fn raw_get(this: *const Self) -> *mut T { + this as *const T as *mut T } /// Gets a mutable pointer to the wrapped value. diff --git a/library/core/src/ptr/mod.rs b/library/core/src/ptr/mod.rs index f5c490ca7ce..6fc85a83e17 100644 --- a/library/core/src/ptr/mod.rs +++ b/library/core/src/ptr/mod.rs @@ -914,6 +914,7 @@ pub const fn dangling<T>() -> *const T { #[must_use] #[stable(feature = "strict_provenance", since = "1.84.0")] #[rustc_const_stable(feature = "strict_provenance", since = "1.84.0")] +#[allow(integer_to_ptr_transmutes)] // Expected semantics here. pub const fn without_provenance_mut<T>(addr: usize) -> *mut T { // An int-to-pointer transmute currently has exactly the intended semantics: it creates a // pointer without provenance. Note that this is *not* a stable guarantee about transmute diff --git a/library/core/src/slice/index.rs b/library/core/src/slice/index.rs index ae360df80f6..98091e9fe83 100644 --- a/library/core/src/slice/index.rs +++ b/library/core/src/slice/index.rs @@ -34,53 +34,44 @@ where #[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] #[cfg_attr(feature = "panic_immediate_abort", inline)] #[track_caller] -const fn slice_start_index_len_fail(index: usize, len: usize) -> ! { - const_panic!( - "slice start index is out of range for slice", - "range start index {index} out of range for slice of length {len}", - index: usize, - len: usize, - ) -} +const fn slice_index_fail(start: usize, end: usize, len: usize) -> ! { + if start > len { + const_panic!( + "slice start index is out of range for slice", + "range start index {start} out of range for slice of length {len}", + start: usize, + len: usize, + ) + } -#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] -#[cfg_attr(feature = "panic_immediate_abort", inline)] -#[track_caller] -const fn slice_end_index_len_fail(index: usize, len: usize) -> ! { - const_panic!( - "slice end index is out of range for slice", - "range end index {index} out of range for slice of length {len}", - index: usize, - len: usize, - ) -} + if end > len { + const_panic!( + "slice end index is out of range for slice", + "range end index {end} out of range for slice of length {len}", + end: usize, + len: usize, + ) + } -#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] -#[cfg_attr(feature = "panic_immediate_abort", inline)] -#[track_caller] -const fn slice_index_order_fail(index: usize, end: usize) -> ! { + if start > end { + const_panic!( + "slice index start is larger than end", + "slice index starts at {start} but ends at {end}", + start: usize, + end: usize, + ) + } + + // Only reachable if the range was a `RangeInclusive` or a + // `RangeToInclusive`, with `end == len`. const_panic!( - "slice index start is larger than end", - "slice index starts at {index} but ends at {end}", - index: usize, + "slice end index is out of range for slice", + "range end index {end} out of range for slice of length {len}", end: usize, + len: usize, ) } -#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] -#[cfg_attr(feature = "panic_immediate_abort", inline)] -#[track_caller] -const fn slice_start_index_overflow_fail() -> ! { - panic!("attempted to index slice from after maximum usize"); -} - -#[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold)] -#[cfg_attr(feature = "panic_immediate_abort", inline)] -#[track_caller] -const fn slice_end_index_overflow_fail() -> ! { - panic!("attempted to index slice up to maximum usize"); -} - // The UbChecks are great for catching bugs in the unsafe methods, but including // them in safe indexing is unnecessary and hurts inlining and debug runtime perf. // Both the safe and unsafe public methods share these helpers, @@ -341,7 +332,7 @@ unsafe impl<T> const SliceIndex<[T]> for ops::IndexRange { // SAFETY: `self` is checked to be valid and in bounds above. unsafe { &*get_offset_len_noubcheck(slice, self.start(), self.len()) } } else { - slice_end_index_len_fail(self.end(), slice.len()) + slice_index_fail(self.start(), self.end(), slice.len()) } } @@ -351,7 +342,7 @@ unsafe impl<T> const SliceIndex<[T]> for ops::IndexRange { // SAFETY: `self` is checked to be valid and in bounds above. unsafe { &mut *get_offset_len_mut_noubcheck(slice, self.start(), self.len()) } } else { - slice_end_index_len_fail(self.end(), slice.len()) + slice_index_fail(self.start(), self.end(), slice.len()) } } } @@ -436,26 +427,27 @@ unsafe impl<T> const SliceIndex<[T]> for ops::Range<usize> { #[inline(always)] fn index(self, slice: &[T]) -> &[T] { // Using checked_sub is a safe way to get `SubUnchecked` in MIR - let Some(new_len) = usize::checked_sub(self.end, self.start) else { - slice_index_order_fail(self.start, self.end) - }; - if self.end > slice.len() { - slice_end_index_len_fail(self.end, slice.len()); + if let Some(new_len) = usize::checked_sub(self.end, self.start) + && self.end <= slice.len() + { + // SAFETY: `self` is checked to be valid and in bounds above. + unsafe { &*get_offset_len_noubcheck(slice, self.start, new_len) } + } else { + slice_index_fail(self.start, self.end, slice.len()) } - // SAFETY: `self` is checked to be valid and in bounds above. - unsafe { &*get_offset_len_noubcheck(slice, self.start, new_len) } } #[inline] fn index_mut(self, slice: &mut [T]) -> &mut [T] { - let Some(new_len) = usize::checked_sub(self.end, self.start) else { - slice_index_order_fail(self.start, self.end) - }; - if self.end > slice.len() { - slice_end_index_len_fail(self.end, slice.len()); + // Using checked_sub is a safe way to get `SubUnchecked` in MIR + if let Some(new_len) = usize::checked_sub(self.end, self.start) + && self.end <= slice.len() + { + // SAFETY: `self` is checked to be valid and in bounds above. + unsafe { &mut *get_offset_len_mut_noubcheck(slice, self.start, new_len) } + } else { + slice_index_fail(self.start, self.end, slice.len()) } - // SAFETY: `self` is checked to be valid and in bounds above. - unsafe { &mut *get_offset_len_mut_noubcheck(slice, self.start, new_len) } } } @@ -567,7 +559,7 @@ unsafe impl<T> const SliceIndex<[T]> for ops::RangeFrom<usize> { #[inline] fn index(self, slice: &[T]) -> &[T] { if self.start > slice.len() { - slice_start_index_len_fail(self.start, slice.len()); + slice_index_fail(self.start, slice.len(), slice.len()) } // SAFETY: `self` is checked to be valid and in bounds above. unsafe { &*self.get_unchecked(slice) } @@ -576,7 +568,7 @@ unsafe impl<T> const SliceIndex<[T]> for ops::RangeFrom<usize> { #[inline] fn index_mut(self, slice: &mut [T]) -> &mut [T] { if self.start > slice.len() { - slice_start_index_len_fail(self.start, slice.len()); + slice_index_fail(self.start, slice.len(), slice.len()) } // SAFETY: `self` is checked to be valid and in bounds above. unsafe { &mut *self.get_unchecked_mut(slice) } @@ -690,18 +682,32 @@ unsafe impl<T> const SliceIndex<[T]> for ops::RangeInclusive<usize> { #[inline] fn index(self, slice: &[T]) -> &[T] { - if *self.end() == usize::MAX { - slice_end_index_overflow_fail(); + let Self { mut start, mut end, exhausted } = self; + let len = slice.len(); + if end < len { + end = end + 1; + start = if exhausted { end } else { start }; + if let Some(new_len) = usize::checked_sub(end, start) { + // SAFETY: `self` is checked to be valid and in bounds above. + unsafe { return &*get_offset_len_noubcheck(slice, start, new_len) } + } } - self.into_slice_range().index(slice) + slice_index_fail(start, end, slice.len()) } #[inline] fn index_mut(self, slice: &mut [T]) -> &mut [T] { - if *self.end() == usize::MAX { - slice_end_index_overflow_fail(); + let Self { mut start, mut end, exhausted } = self; + let len = slice.len(); + if end < len { + end = end + 1; + start = if exhausted { end } else { start }; + if let Some(new_len) = usize::checked_sub(end, start) { + // SAFETY: `self` is checked to be valid and in bounds above. + unsafe { return &mut *get_offset_len_mut_noubcheck(slice, start, new_len) } + } } - self.into_slice_range().index_mut(slice) + slice_index_fail(start, end, slice.len()) } } @@ -852,28 +858,26 @@ where { let len = bounds.end; - let start = match range.start_bound() { - ops::Bound::Included(&start) => start, - ops::Bound::Excluded(start) => { - start.checked_add(1).unwrap_or_else(|| slice_start_index_overflow_fail()) - } - ops::Bound::Unbounded => 0, - }; - let end = match range.end_bound() { - ops::Bound::Included(end) => { - end.checked_add(1).unwrap_or_else(|| slice_end_index_overflow_fail()) - } + ops::Bound::Included(&end) if end >= len => slice_index_fail(0, end, len), + // Cannot overflow because `end < len` implies `end < usize::MAX`. + ops::Bound::Included(&end) => end + 1, + + ops::Bound::Excluded(&end) if end > len => slice_index_fail(0, end, len), ops::Bound::Excluded(&end) => end, ops::Bound::Unbounded => len, }; - if start > end { - slice_index_order_fail(start, end); - } - if end > len { - slice_end_index_len_fail(end, len); - } + let start = match range.start_bound() { + ops::Bound::Excluded(&start) if start >= end => slice_index_fail(start, end, len), + // Cannot overflow because `start < end` implies `start < usize::MAX`. + ops::Bound::Excluded(&start) => start + 1, + + ops::Bound::Included(&start) if start > end => slice_index_fail(start, end, len), + ops::Bound::Included(&start) => start, + + ops::Bound::Unbounded => 0, + }; ops::Range { start, end } } @@ -982,25 +986,27 @@ pub(crate) fn into_slice_range( len: usize, (start, end): (ops::Bound<usize>, ops::Bound<usize>), ) -> ops::Range<usize> { - use ops::Bound; - let start = match start { - Bound::Included(start) => start, - Bound::Excluded(start) => { - start.checked_add(1).unwrap_or_else(|| slice_start_index_overflow_fail()) - } - Bound::Unbounded => 0, - }; - let end = match end { - Bound::Included(end) => { - end.checked_add(1).unwrap_or_else(|| slice_end_index_overflow_fail()) - } - Bound::Excluded(end) => end, - Bound::Unbounded => len, + ops::Bound::Included(end) if end >= len => slice_index_fail(0, end, len), + // Cannot overflow because `end < len` implies `end < usize::MAX`. + ops::Bound::Included(end) => end + 1, + + ops::Bound::Excluded(end) if end > len => slice_index_fail(0, end, len), + ops::Bound::Excluded(end) => end, + + ops::Bound::Unbounded => len, }; - // Don't bother with checking `start < end` and `end <= len` - // since these checks are handled by `Range` impls + let start = match start { + ops::Bound::Excluded(start) if start >= end => slice_index_fail(start, end, len), + // Cannot overflow because `start < end` implies `start < usize::MAX`. + ops::Bound::Excluded(start) => start + 1, + + ops::Bound::Included(start) if start > end => slice_index_fail(start, end, len), + ops::Bound::Included(start) => start, + + ops::Bound::Unbounded => 0, + }; start..end } diff --git a/library/core/src/task/poll.rs b/library/core/src/task/poll.rs index ca668361ef6..59ffe7ad49c 100644 --- a/library/core/src/task/poll.rs +++ b/library/core/src/task/poll.rs @@ -125,7 +125,7 @@ impl<T, E> Poll<Result<T, E>> { } } - /// Maps a `Poll::Ready<Result<T, E>>` to `Poll::Ready<Result<T, F>>` by + /// Maps a `Poll::Ready<Result<T, E>>` to `Poll::Ready<Result<T, U>>` by /// applying a function to a contained `Poll::Ready(Err)` value, leaving all other /// variants untouched. /// diff --git a/library/core/src/unicode/mod.rs b/library/core/src/unicode/mod.rs index 49dbdeb1a6d..191fe7711f9 100644 --- a/library/core/src/unicode/mod.rs +++ b/library/core/src/unicode/mod.rs @@ -1,5 +1,6 @@ +//! Unicode internals used in liballoc and libstd. Not public API. #![unstable(feature = "unicode_internals", issue = "none")] -#![allow(missing_docs)] +#![doc(hidden)] // for use in alloc, not re-exported in std. #[rustfmt::skip] @@ -31,5 +32,4 @@ mod unicode_data; /// /// The version numbering scheme is explained in /// [Unicode 11.0 or later, Section 3.1 Versions of the Unicode Standard](https://www.unicode.org/versions/Unicode11.0.0/ch03.pdf#page=4). -#[stable(feature = "unicode_version", since = "1.45.0")] pub const UNICODE_VERSION: (u8, u8, u8) = unicode_data::UNICODE_VERSION; diff --git a/library/coretests/benches/fmt.rs b/library/coretests/benches/fmt.rs index ee8e981b46b..f45b921b939 100644 --- a/library/coretests/benches/fmt.rs +++ b/library/coretests/benches/fmt.rs @@ -162,3 +162,183 @@ fn write_u8_min(bh: &mut Bencher) { black_box(format!("{}", black_box(u8::MIN))); }); } + +#[bench] +fn write_i8_bin(bh: &mut Bencher) { + let mut buf = String::with_capacity(256); + bh.iter(|| { + write!(black_box(&mut buf), "{:b}", black_box(0_i8)).unwrap(); + write!(black_box(&mut buf), "{:b}", black_box(100_i8)).unwrap(); + write!(black_box(&mut buf), "{:b}", black_box(-100_i8)).unwrap(); + write!(black_box(&mut buf), "{:b}", black_box(1_i8 << 4)).unwrap(); + black_box(&mut buf).clear(); + }); +} + +#[bench] +fn write_i16_bin(bh: &mut Bencher) { + let mut buf = String::with_capacity(256); + bh.iter(|| { + write!(black_box(&mut buf), "{:b}", black_box(0_i16)).unwrap(); + write!(black_box(&mut buf), "{:b}", black_box(100_i16)).unwrap(); + write!(black_box(&mut buf), "{:b}", black_box(-100_i16)).unwrap(); + write!(black_box(&mut buf), "{:b}", black_box(1_i16 << 8)).unwrap(); + black_box(&mut buf).clear(); + }); +} + +#[bench] +fn write_i32_bin(bh: &mut Bencher) { + let mut buf = String::with_capacity(256); + bh.iter(|| { + write!(black_box(&mut buf), "{:b}", black_box(0_i32)).unwrap(); + write!(black_box(&mut buf), "{:b}", black_box(100_i32)).unwrap(); + write!(black_box(&mut buf), "{:b}", black_box(-100_i32)).unwrap(); + write!(black_box(&mut buf), "{:b}", black_box(1_i32 << 16)).unwrap(); + black_box(&mut buf).clear(); + }); +} + +#[bench] +fn write_i64_bin(bh: &mut Bencher) { + let mut buf = String::with_capacity(256); + bh.iter(|| { + write!(black_box(&mut buf), "{:b}", black_box(0_i64)).unwrap(); + write!(black_box(&mut buf), "{:b}", black_box(100_i64)).unwrap(); + write!(black_box(&mut buf), "{:b}", black_box(-100_i64)).unwrap(); + write!(black_box(&mut buf), "{:b}", black_box(1_i64 << 32)).unwrap(); + black_box(&mut buf).clear(); + }); +} + +#[bench] +fn write_i128_bin(bh: &mut Bencher) { + let mut buf = String::with_capacity(256); + bh.iter(|| { + write!(black_box(&mut buf), "{:b}", black_box(0_i128)).unwrap(); + write!(black_box(&mut buf), "{:b}", black_box(100_i128)).unwrap(); + write!(black_box(&mut buf), "{:b}", black_box(-100_i128)).unwrap(); + write!(black_box(&mut buf), "{:b}", black_box(1_i128 << 64)).unwrap(); + black_box(&mut buf).clear(); + }); +} + +#[bench] +fn write_i8_oct(bh: &mut Bencher) { + let mut buf = String::with_capacity(256); + bh.iter(|| { + write!(black_box(&mut buf), "{:o}", black_box(0_i8)).unwrap(); + write!(black_box(&mut buf), "{:o}", black_box(100_i8)).unwrap(); + write!(black_box(&mut buf), "{:o}", black_box(-100_i8)).unwrap(); + write!(black_box(&mut buf), "{:o}", black_box(1_i8 << 4)).unwrap(); + black_box(&mut buf).clear(); + }); +} + +#[bench] +fn write_i16_oct(bh: &mut Bencher) { + let mut buf = String::with_capacity(256); + bh.iter(|| { + write!(black_box(&mut buf), "{:o}", black_box(0_i16)).unwrap(); + write!(black_box(&mut buf), "{:o}", black_box(100_i16)).unwrap(); + write!(black_box(&mut buf), "{:o}", black_box(-100_i16)).unwrap(); + write!(black_box(&mut buf), "{:o}", black_box(1_i16 << 8)).unwrap(); + black_box(&mut buf).clear(); + }); +} + +#[bench] +fn write_i32_oct(bh: &mut Bencher) { + let mut buf = String::with_capacity(256); + bh.iter(|| { + write!(black_box(&mut buf), "{:o}", black_box(0_i32)).unwrap(); + write!(black_box(&mut buf), "{:o}", black_box(100_i32)).unwrap(); + write!(black_box(&mut buf), "{:o}", black_box(-100_i32)).unwrap(); + write!(black_box(&mut buf), "{:o}", black_box(1_i32 << 16)).unwrap(); + black_box(&mut buf).clear(); + }); +} + +#[bench] +fn write_i64_oct(bh: &mut Bencher) { + let mut buf = String::with_capacity(256); + bh.iter(|| { + write!(black_box(&mut buf), "{:o}", black_box(0_i64)).unwrap(); + write!(black_box(&mut buf), "{:o}", black_box(100_i64)).unwrap(); + write!(black_box(&mut buf), "{:o}", black_box(-100_i64)).unwrap(); + write!(black_box(&mut buf), "{:o}", black_box(1_i64 << 32)).unwrap(); + black_box(&mut buf).clear(); + }); +} + +#[bench] +fn write_i128_oct(bh: &mut Bencher) { + let mut buf = String::with_capacity(256); + bh.iter(|| { + write!(black_box(&mut buf), "{:o}", black_box(0_i128)).unwrap(); + write!(black_box(&mut buf), "{:o}", black_box(100_i128)).unwrap(); + write!(black_box(&mut buf), "{:o}", black_box(-100_i128)).unwrap(); + write!(black_box(&mut buf), "{:o}", black_box(1_i128 << 64)).unwrap(); + black_box(&mut buf).clear(); + }); +} + +#[bench] +fn write_i8_hex(bh: &mut Bencher) { + let mut buf = String::with_capacity(256); + bh.iter(|| { + write!(black_box(&mut buf), "{:x}", black_box(0_i8)).unwrap(); + write!(black_box(&mut buf), "{:x}", black_box(100_i8)).unwrap(); + write!(black_box(&mut buf), "{:x}", black_box(-100_i8)).unwrap(); + write!(black_box(&mut buf), "{:x}", black_box(1_i8 << 4)).unwrap(); + black_box(&mut buf).clear(); + }); +} + +#[bench] +fn write_i16_hex(bh: &mut Bencher) { + let mut buf = String::with_capacity(256); + bh.iter(|| { + write!(black_box(&mut buf), "{:x}", black_box(0_i16)).unwrap(); + write!(black_box(&mut buf), "{:x}", black_box(100_i16)).unwrap(); + write!(black_box(&mut buf), "{:x}", black_box(-100_i16)).unwrap(); + write!(black_box(&mut buf), "{:x}", black_box(1_i16 << 8)).unwrap(); + black_box(&mut buf).clear(); + }); +} + +#[bench] +fn write_i32_hex(bh: &mut Bencher) { + let mut buf = String::with_capacity(256); + bh.iter(|| { + write!(black_box(&mut buf), "{:x}", black_box(0_i32)).unwrap(); + write!(black_box(&mut buf), "{:x}", black_box(100_i32)).unwrap(); + write!(black_box(&mut buf), "{:x}", black_box(-100_i32)).unwrap(); + write!(black_box(&mut buf), "{:x}", black_box(1_i32 << 16)).unwrap(); + black_box(&mut buf).clear(); + }); +} + +#[bench] +fn write_i64_hex(bh: &mut Bencher) { + let mut buf = String::with_capacity(256); + bh.iter(|| { + write!(black_box(&mut buf), "{:x}", black_box(0_i64)).unwrap(); + write!(black_box(&mut buf), "{:x}", black_box(100_i64)).unwrap(); + write!(black_box(&mut buf), "{:x}", black_box(-100_i64)).unwrap(); + write!(black_box(&mut buf), "{:x}", black_box(1_i64 << 32)).unwrap(); + black_box(&mut buf).clear(); + }); +} + +#[bench] +fn write_i128_hex(bh: &mut Bencher) { + let mut buf = String::with_capacity(256); + bh.iter(|| { + write!(black_box(&mut buf), "{:x}", black_box(0_i128)).unwrap(); + write!(black_box(&mut buf), "{:x}", black_box(100_i128)).unwrap(); + write!(black_box(&mut buf), "{:x}", black_box(-100_i128)).unwrap(); + write!(black_box(&mut buf), "{:x}", black_box(1_i128 << 64)).unwrap(); + black_box(&mut buf).clear(); + }); +} diff --git a/library/coretests/tests/lib.rs b/library/coretests/tests/lib.rs index b128acfc000..d2281b1df2f 100644 --- a/library/coretests/tests/lib.rs +++ b/library/coretests/tests/lib.rs @@ -54,6 +54,7 @@ #![feature(generic_assert_internals)] #![feature(hasher_prefixfree_extras)] #![feature(hashmap_internals)] +#![feature(int_lowest_highest_one)] #![feature(int_roundings)] #![feature(ip)] #![feature(is_ascii_octdigit)] diff --git a/library/coretests/tests/nonzero.rs b/library/coretests/tests/nonzero.rs index eb06c34fd02..69e4ed9c36b 100644 --- a/library/coretests/tests/nonzero.rs +++ b/library/coretests/tests/nonzero.rs @@ -462,3 +462,111 @@ fn test_nonzero_fmt() { assert_eq!(i, nz); } + +#[test] +fn test_nonzero_highest_one() { + macro_rules! nonzero_int_impl { + ($($T:ty),+) => { + $( + { + for i in 0..<$T>::BITS { + // Set single bit. + assert_eq!(NonZero::<$T>::new(1 << i).unwrap().highest_one(), i); + if i > <$T>::BITS { + // Set lowest bits. + assert_eq!( + NonZero::<$T>::new(<$T>::MAX >> i).unwrap().highest_one(), + <$T>::BITS - i - 2, + ); + } + // Set highest bits. + assert_eq!( + NonZero::<$T>::new(-1 << i).unwrap().highest_one(), + <$T>::BITS - 1, + ); + } + } + )+ + }; + } + + macro_rules! nonzero_uint_impl { + ($($T:ty),+) => { + $( + { + for i in 0..<$T>::BITS { + // Set single bit. + assert_eq!(NonZero::<$T>::new(1 << i).unwrap().highest_one(), i); + // Set lowest bits. + assert_eq!( + NonZero::<$T>::new(<$T>::MAX >> i).unwrap().highest_one(), + <$T>::BITS - i - 1, + ); + // Set highest bits. + assert_eq!( + NonZero::<$T>::new(<$T>::MAX << i).unwrap().highest_one(), + <$T>::BITS - 1, + ); + } + } + )+ + }; + } + + nonzero_int_impl!(i8, i16, i32, i64, i128, isize); + nonzero_uint_impl!(u8, u16, u32, u64, u128, usize); +} + +#[test] +fn test_nonzero_lowest_one() { + macro_rules! nonzero_int_impl { + ($($T:ty),+) => { + $( + { + for i in 0..<$T>::BITS { + // Set single bit. + assert_eq!(NonZero::<$T>::new(1 << i).unwrap().lowest_one(), i); + if i > <$T>::BITS { + // Set lowest bits. + assert_eq!( + NonZero::<$T>::new(<$T>::MAX >> i).unwrap().lowest_one(), + 0, + ); + } + // Set highest bits. + assert_eq!( + NonZero::<$T>::new(-1 << i).unwrap().lowest_one(), + i, + ); + } + } + )+ + }; + } + + macro_rules! nonzero_uint_impl { + ($($T:ty),+) => { + $( + { + for i in 0..<$T>::BITS { + // Set single bit. + assert_eq!(NonZero::<$T>::new(1 << i).unwrap().lowest_one(), i); + // Set lowest bits. + assert_eq!( + NonZero::<$T>::new(<$T>::MAX >> i).unwrap().lowest_one(), + 0, + ); + // Set highest bits. + assert_eq!( + NonZero::<$T>::new(<$T>::MAX << i).unwrap().lowest_one(), + i, + ); + } + } + )+ + }; + } + + nonzero_int_impl!(i8, i16, i32, i64, i128, isize); + nonzero_uint_impl!(u8, u16, u32, u64, u128, usize); +} diff --git a/library/coretests/tests/num/int_macros.rs b/library/coretests/tests/num/int_macros.rs index ca32fce861f..1611a6466f5 100644 --- a/library/coretests/tests/num/int_macros.rs +++ b/library/coretests/tests/num/int_macros.rs @@ -228,6 +228,46 @@ macro_rules! int_module { } #[test] + fn test_highest_one() { + const ZERO: $T = 0; + const ONE: $T = 1; + const MINUS_ONE: $T = -1; + + assert_eq!(ZERO.highest_one(), None); + + for i in 0..<$T>::BITS { + // Set single bit. + assert_eq!((ONE << i).highest_one(), Some(i)); + if i != <$T>::BITS - 1 { + // Set lowest bits. + assert_eq!((<$T>::MAX >> i).highest_one(), Some(<$T>::BITS - i - 2)); + } + // Set highest bits. + assert_eq!((MINUS_ONE << i).highest_one(), Some(<$T>::BITS - 1)); + } + } + + #[test] + fn test_lowest_one() { + const ZERO: $T = 0; + const ONE: $T = 1; + const MINUS_ONE: $T = -1; + + assert_eq!(ZERO.lowest_one(), None); + + for i in 0..<$T>::BITS { + // Set single bit. + assert_eq!((ONE << i).lowest_one(), Some(i)); + if i != <$T>::BITS - 1 { + // Set lowest bits. + assert_eq!((<$T>::MAX >> i).lowest_one(), Some(0)); + } + // Set highest bits. + assert_eq!((MINUS_ONE << i).lowest_one(), Some(i)); + } + } + + #[test] fn test_from_str() { fn from_str<T: std::str::FromStr>(t: &str) -> Option<T> { std::str::FromStr::from_str(t).ok() diff --git a/library/coretests/tests/num/uint_macros.rs b/library/coretests/tests/num/uint_macros.rs index 8f389de70aa..c7d10ea4d88 100644 --- a/library/coretests/tests/num/uint_macros.rs +++ b/library/coretests/tests/num/uint_macros.rs @@ -184,6 +184,40 @@ macro_rules! uint_module { } } + #[test] + fn test_highest_one() { + const ZERO: $T = 0; + const ONE: $T = 1; + + assert_eq!(ZERO.highest_one(), None); + + for i in 0..<$T>::BITS { + // Set single bit. + assert_eq!((ONE << i).highest_one(), Some(i)); + // Set lowest bits. + assert_eq!((<$T>::MAX >> i).highest_one(), Some(<$T>::BITS - i - 1)); + // Set highest bits. + assert_eq!((<$T>::MAX << i).highest_one(), Some(<$T>::BITS - 1)); + } + } + + #[test] + fn test_lowest_one() { + const ZERO: $T = 0; + const ONE: $T = 1; + + assert_eq!(ZERO.lowest_one(), None); + + for i in 0..<$T>::BITS { + // Set single bit. + assert_eq!((ONE << i).lowest_one(), Some(i)); + // Set lowest bits. + assert_eq!((<$T>::MAX >> i).lowest_one(), Some(0)); + // Set highest bits. + assert_eq!((<$T>::MAX << i).lowest_one(), Some(i)); + } + } + fn from_str<T: core::str::FromStr>(t: &str) -> Option<T> { core::str::FromStr::from_str(t).ok() } diff --git a/library/coretests/tests/panic/location.rs b/library/coretests/tests/panic/location.rs index 910001bcc1c..a7db05a15c6 100644 --- a/library/coretests/tests/panic/location.rs +++ b/library/coretests/tests/panic/location.rs @@ -48,10 +48,18 @@ fn location_const_column() { } #[test] +fn location_file_lifetime<'x>() { + // Verify that the returned `&str`s lifetime is derived from the generic + // lifetime 'a, not the lifetime of `&self`, when calling `Location::file`. + // Test failure is indicated by a compile failure, not a runtime panic. + let _: for<'a> fn(&'a Location<'x>) -> &'x str = Location::file; +} + +#[test] fn location_debug() { let f = format!("{:?}", Location::caller()); assert!(f.contains(&format!("{:?}", file!()))); - assert!(f.contains("52")); + assert!(f.contains("60")); assert!(f.contains("29")); } diff --git a/library/coretests/tests/slice.rs b/library/coretests/tests/slice.rs index 992f24cb18f..110c4e5f3b4 100644 --- a/library/coretests/tests/slice.rs +++ b/library/coretests/tests/slice.rs @@ -1492,28 +1492,28 @@ mod slice_index { // note: using 0 specifically ensures that the result of overflowing is 0..0, // so that `get` doesn't simply return None for the wrong reason. bad: data[0 ..= usize::MAX]; - message: "maximum usize"; + message: "out of range"; } in mod rangetoinclusive_overflow { data: [0, 1]; bad: data[..= usize::MAX]; - message: "maximum usize"; + message: "out of range"; } in mod boundpair_overflow_end { data: [0; 1]; bad: data[(Bound::Unbounded, Bound::Included(usize::MAX))]; - message: "maximum usize"; + message: "out of range"; } in mod boundpair_overflow_start { data: [0; 1]; bad: data[(Bound::Excluded(usize::MAX), Bound::Unbounded)]; - message: "maximum usize"; + message: "out of range"; } } // panic_cases! } @@ -2008,7 +2008,7 @@ fn test_copy_within_panics_src_inverted() { bytes.copy_within(2..1, 0); } #[test] -#[should_panic(expected = "attempted to index slice up to maximum usize")] +#[should_panic(expected = "out of range")] fn test_copy_within_panics_src_out_of_bounds() { let mut bytes = *b"Hello, World!"; // an inclusive range ending at usize::MAX would make src_end overflow diff --git a/library/panic_unwind/Cargo.toml b/library/panic_unwind/Cargo.toml index 13d1a7160da..67fc919c42c 100644 --- a/library/panic_unwind/Cargo.toml +++ b/library/panic_unwind/Cargo.toml @@ -13,7 +13,6 @@ doc = false [dependencies] alloc = { path = "../alloc" } -cfg-if = { version = "1.0", features = ['rustc-dep-of-std'] } core = { path = "../rustc-std-workspace-core", package = "rustc-std-workspace-core" } unwind = { path = "../unwind" } diff --git a/library/panic_unwind/src/lib.rs b/library/panic_unwind/src/lib.rs index 50bd933aca2..83311f32380 100644 --- a/library/panic_unwind/src/lib.rs +++ b/library/panic_unwind/src/lib.rs @@ -15,6 +15,7 @@ #![unstable(feature = "panic_unwind", issue = "32837")] #![doc(issue_tracker_base_url = "https://github.com/rust-lang/rust/issues/")] #![feature(cfg_emscripten_wasm_eh)] +#![feature(cfg_select)] #![feature(core_intrinsics)] #![feature(lang_items)] #![feature(panic_unwind)] @@ -33,18 +34,21 @@ use alloc::boxed::Box; use core::any::Any; use core::panic::PanicPayload; -cfg_if::cfg_if! { - if #[cfg(all(target_os = "emscripten", not(emscripten_wasm_eh)))] { +cfg_select! { + all(target_os = "emscripten", not(emscripten_wasm_eh)) => { #[path = "emcc.rs"] mod imp; - } else if #[cfg(target_os = "hermit")] { + } + target_os = "hermit" => { #[path = "hermit.rs"] mod imp; - } else if #[cfg(target_os = "l4re")] { + } + target_os = "l4re" => { // L4Re is unix family but does not yet support unwinding. #[path = "dummy.rs"] mod imp; - } else if #[cfg(any( + } + any( all(target_family = "windows", target_env = "gnu"), target_os = "psp", target_os = "xous", @@ -52,19 +56,22 @@ cfg_if::cfg_if! { all(target_family = "unix", not(any(target_os = "espidf", target_os = "nuttx"))), all(target_vendor = "fortanix", target_env = "sgx"), target_family = "wasm", - ))] { + ) => { #[path = "gcc.rs"] mod imp; - } else if #[cfg(miri)] { + } + miri => { // Use the Miri runtime on Windows as miri doesn't support funclet based unwinding, // only landingpad based unwinding. Also use the Miri runtime on unsupported platforms. #[path = "miri.rs"] mod imp; - } else if #[cfg(all(target_env = "msvc", not(target_arch = "arm")))] { + } + all(target_env = "msvc", not(target_arch = "arm")) => { // LLVM does not support unwinding on 32 bit ARM msvc (thumbv7a-pc-windows-msvc) #[path = "seh.rs"] mod imp; - } else { + } + _ => { // Targets that don't support unwinding. // - os=none ("bare metal" targets) // - os=uefi diff --git a/library/panic_unwind/src/seh.rs b/library/panic_unwind/src/seh.rs index 668e988abff..a5d67dbb6a9 100644 --- a/library/panic_unwind/src/seh.rs +++ b/library/panic_unwind/src/seh.rs @@ -289,10 +289,11 @@ macro_rules! define_cleanup { } } } -cfg_if::cfg_if! { - if #[cfg(target_arch = "x86")] { +cfg_select! { + target_arch = "x86" => { define_cleanup!("thiscall" "thiscall-unwind"); - } else { + } + _ => { define_cleanup!("C" "C-unwind"); } } diff --git a/library/std/src/collections/mod.rs b/library/std/src/collections/mod.rs index 889ed3c5380..6104a02c739 100644 --- a/library/std/src/collections/mod.rs +++ b/library/std/src/collections/mod.rs @@ -26,7 +26,7 @@ //! should be considered. Detailed discussions of strengths and weaknesses of //! individual collections can be found on their own documentation pages. //! -//! ### Use a `Vec` when: +//! ### Use a [`Vec`] when: //! * You want to collect items up to be processed or sent elsewhere later, and //! don't care about any properties of the actual values being stored. //! * You want a sequence of elements in a particular order, and will only be @@ -35,25 +35,25 @@ //! * You want a resizable array. //! * You want a heap-allocated array. //! -//! ### Use a `VecDeque` when: +//! ### Use a [`VecDeque`] when: //! * You want a [`Vec`] that supports efficient insertion at both ends of the //! sequence. //! * You want a queue. //! * You want a double-ended queue (deque). //! -//! ### Use a `LinkedList` when: +//! ### Use a [`LinkedList`] when: //! * You want a [`Vec`] or [`VecDeque`] of unknown size, and can't tolerate //! amortization. //! * You want to efficiently split and append lists. //! * You are *absolutely* certain you *really*, *truly*, want a doubly linked //! list. //! -//! ### Use a `HashMap` when: +//! ### Use a [`HashMap`] when: //! * You want to associate arbitrary keys with an arbitrary value. //! * You want a cache. //! * You want a map, with no extra functionality. //! -//! ### Use a `BTreeMap` when: +//! ### Use a [`BTreeMap`] when: //! * You want a map sorted by its keys. //! * You want to be able to get a range of entries on-demand. //! * You're interested in what the smallest or largest key-value pair is. @@ -65,7 +65,7 @@ //! * There is no meaningful value to associate with your keys. //! * You just want a set. //! -//! ### Use a `BinaryHeap` when: +//! ### Use a [`BinaryHeap`] when: //! //! * You want to store a bunch of elements, but only ever want to process the //! "biggest" or "most important" one at any given time. diff --git a/library/std/src/ffi/os_str.rs b/library/std/src/ffi/os_str.rs index 8d7edc732af..1214490caad 100644 --- a/library/std/src/ffi/os_str.rs +++ b/library/std/src/ffi/os_str.rs @@ -137,7 +137,7 @@ impl OsString { #[stable(feature = "rust1", since = "1.0.0")] #[must_use] #[inline] - #[rustc_const_unstable(feature = "const_pathbuf_osstring_new", issue = "141520")] + #[rustc_const_stable(feature = "const_pathbuf_osstring_new", since = "CURRENT_RUSTC_VERSION")] pub const fn new() -> OsString { OsString { inner: Buf::from_string(String::new()) } } diff --git a/library/std/src/fs.rs b/library/std/src/fs.rs index d4a584f4d14..1ed4f2f9f0c 100644 --- a/library/std/src/fs.rs +++ b/library/std/src/fs.rs @@ -3156,6 +3156,25 @@ pub fn set_permissions<P: AsRef<Path>>(path: P, perm: Permissions) -> io::Result fs_imp::set_permissions(path.as_ref(), perm.0) } +/// Set the permissions of a file, unless it is a symlink. +/// +/// Note that the non-final path elements are allowed to be symlinks. +/// +/// # Platform-specific behavior +/// +/// Currently unimplemented on Windows. +/// +/// On Unix platforms, this results in a [`FilesystemLoop`] error if the last element is a symlink. +/// +/// This behavior may change in the future. +/// +/// [`FilesystemLoop`]: crate::io::ErrorKind::FilesystemLoop +#[doc(alias = "chmod", alias = "SetFileAttributes")] +#[unstable(feature = "set_permissions_nofollow", issue = "141607")] +pub fn set_permissions_nofollow<P: AsRef<Path>>(path: P, perm: Permissions) -> io::Result<()> { + fs_imp::set_permissions_nofollow(path.as_ref(), perm) +} + impl DirBuilder { /// Creates a new set of options with default mode/security settings for all /// platforms and also non-recursive. diff --git a/library/std/src/io/buffered/bufreader/buffer.rs b/library/std/src/io/buffered/bufreader/buffer.rs index 574288e579e..9b600cd5575 100644 --- a/library/std/src/io/buffered/bufreader/buffer.rs +++ b/library/std/src/io/buffered/bufreader/buffer.rs @@ -122,7 +122,7 @@ impl Buffer { /// Remove bytes that have already been read from the buffer. pub fn backshift(&mut self) { - self.buf.copy_within(self.pos.., 0); + self.buf.copy_within(self.pos..self.filled, 0); self.filled -= self.pos; self.pos = 0; } diff --git a/library/std/src/io/error.rs b/library/std/src/io/error.rs index 562fdbf4ff7..dcfa189823f 100644 --- a/library/std/src/io/error.rs +++ b/library/std/src/io/error.rs @@ -18,7 +18,7 @@ use crate::{error, fmt, result, sys}; /// This type is broadly used across [`std::io`] for any operation which may /// produce an error. /// -/// This typedef is generally used to avoid writing out [`io::Error`] directly and +/// This type alias is generally used to avoid writing out [`io::Error`] directly and /// is otherwise a direct mapping to [`Result`]. /// /// While usual Rust style is to import types directly, aliases of [`Result`] diff --git a/library/std/src/io/mod.rs b/library/std/src/io/mod.rs index d351ee5e739..ff0e29e04c2 100644 --- a/library/std/src/io/mod.rs +++ b/library/std/src/io/mod.rs @@ -2461,7 +2461,7 @@ pub trait BufRead: Read { /// delimiter or EOF is found. /// /// If successful, this function will return the total number of bytes read, - /// including the delimiter byte. + /// including the delimiter byte if found. /// /// This is useful for efficiently skipping data such as NUL-terminated strings /// in binary file formats without buffering. @@ -2489,7 +2489,7 @@ pub trait BufRead: Read { /// ``` /// use std::io::{self, BufRead}; /// - /// let mut cursor = io::Cursor::new(b"Ferris\0Likes long walks on the beach\0Crustacean\0"); + /// let mut cursor = io::Cursor::new(b"Ferris\0Likes long walks on the beach\0Crustacean\0!"); /// /// // read name /// let mut name = Vec::new(); @@ -2509,6 +2509,11 @@ pub trait BufRead: Read { /// .expect("reading from cursor won't fail"); /// assert_eq!(num_bytes, 11); /// assert_eq!(animal, b"Crustacean\0"); + /// + /// // reach EOF + /// let num_bytes = cursor.skip_until(b'\0') + /// .expect("reading from cursor won't fail"); + /// assert_eq!(num_bytes, 1); /// ``` #[stable(feature = "bufread_skip_until", since = "1.83.0")] fn skip_until(&mut self, byte: u8) -> Result<usize> { diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs index ab417b6c72f..f0de03c9a28 100644 --- a/library/std/src/lib.rs +++ b/library/std/src/lib.rs @@ -15,7 +15,7 @@ //! //! If you already know the name of what you are looking for, the fastest way to //! find it is to use the <a href="#" onclick="window.searchState.focus();">search -//! bar</a> at the top of the page. +//! button</a> at the top of the page. //! //! Otherwise, you may want to jump to one of these useful sections: //! diff --git a/library/std/src/path.rs b/library/std/src/path.rs index 23e957484a5..3899fbf86db 100644 --- a/library/std/src/path.rs +++ b/library/std/src/path.rs @@ -1191,7 +1191,7 @@ impl PathBuf { #[stable(feature = "rust1", since = "1.0.0")] #[must_use] #[inline] - #[rustc_const_unstable(feature = "const_pathbuf_osstring_new", issue = "141520")] + #[rustc_const_stable(feature = "const_pathbuf_osstring_new", since = "CURRENT_RUSTC_VERSION")] pub const fn new() -> PathBuf { PathBuf { inner: OsString::new() } } diff --git a/library/std/src/sync/lazy_lock.rs b/library/std/src/sync/lazy_lock.rs index a40e29a772a..3231125f7a1 100644 --- a/library/std/src/sync/lazy_lock.rs +++ b/library/std/src/sync/lazy_lock.rs @@ -244,7 +244,11 @@ impl<T, F: FnOnce() -> T> LazyLock<T, F> { #[inline] #[stable(feature = "lazy_cell", since = "1.80.0")] pub fn force(this: &LazyLock<T, F>) -> &T { - this.once.call_once(|| { + this.once.call_once_force(|state| { + if state.is_poisoned() { + panic_poisoned(); + } + // SAFETY: `call_once` only runs this closure once, ever. let data = unsafe { &mut *this.data.get() }; let f = unsafe { ManuallyDrop::take(&mut data.f) }; @@ -257,8 +261,7 @@ impl<T, F: FnOnce() -> T> LazyLock<T, F> { // * the closure was called and initialized `value`. // * the closure was called and panicked, so this point is never reached. // * the closure was not called, but a previous call initialized `value`. - // * the closure was not called because the Once is poisoned, so this point - // is never reached. + // * the closure was not called because the Once is poisoned, which we handled above. // So `value` has definitely been initialized and will not be modified again. unsafe { &*(*this.data.get()).value } } diff --git a/library/std/src/sync/nonpoison.rs b/library/std/src/sync/nonpoison.rs index 2bbf226dc2c..b3ae376e70d 100644 --- a/library/std/src/sync/nonpoison.rs +++ b/library/std/src/sync/nonpoison.rs @@ -33,5 +33,10 @@ impl fmt::Display for WouldBlock { pub use self::mutex::MappedMutexGuard; #[unstable(feature = "nonpoison_mutex", issue = "134645")] pub use self::mutex::{Mutex, MutexGuard}; +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +pub use self::rwlock::{MappedRwLockReadGuard, MappedRwLockWriteGuard}; +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +pub use self::rwlock::{RwLock, RwLockReadGuard, RwLockWriteGuard}; mod mutex; +mod rwlock; diff --git a/library/std/src/sync/nonpoison/mutex.rs b/library/std/src/sync/nonpoison/mutex.rs index b6861c78f00..fd1e671d7a3 100644 --- a/library/std/src/sync/nonpoison/mutex.rs +++ b/library/std/src/sync/nonpoison/mutex.rs @@ -100,7 +100,7 @@ pub struct MutexGuard<'a, T: ?Sized + 'a> { lock: &'a Mutex<T>, } -/// A [`MutexGuard`] is not `Send` to maximize platform portablity. +/// A [`MutexGuard`] is not `Send` to maximize platform portability. /// /// On platforms that use POSIX threads (commonly referred to as pthreads) there is a requirement to /// release mutex locks on the same thread they were acquired. diff --git a/library/std/src/sync/nonpoison/rwlock.rs b/library/std/src/sync/nonpoison/rwlock.rs new file mode 100644 index 00000000000..eb0aef99cc1 --- /dev/null +++ b/library/std/src/sync/nonpoison/rwlock.rs @@ -0,0 +1,1081 @@ +use crate::cell::UnsafeCell; +use crate::fmt; +use crate::marker::PhantomData; +use crate::mem::{self, ManuallyDrop, forget}; +use crate::ops::{Deref, DerefMut}; +use crate::ptr::NonNull; +use crate::sync::nonpoison::{TryLockResult, WouldBlock}; +use crate::sys::sync as sys; + +/// A reader-writer lock that does not keep track of lock poisoning. +/// +/// For more information about reader-writer locks, check out the documentation for the poisoning +/// variant of this lock (which can be found at [`poison::RwLock`]). +/// +/// [`poison::RwLock`]: crate::sync::poison::RwLock +/// +/// # Examples +/// +/// ``` +/// #![feature(nonpoison_rwlock)] +/// +/// use std::sync::nonpoison::RwLock; +/// +/// let lock = RwLock::new(5); +/// +/// // many reader locks can be held at once +/// { +/// let r1 = lock.read(); +/// let r2 = lock.read(); +/// assert_eq!(*r1, 5); +/// assert_eq!(*r2, 5); +/// } // read locks are dropped at this point +/// +/// // only one write lock may be held, however +/// { +/// let mut w = lock.write(); +/// *w += 1; +/// assert_eq!(*w, 6); +/// } // write lock is dropped here +/// ``` +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +#[cfg_attr(not(test), rustc_diagnostic_item = "NonPoisonRwLock")] +pub struct RwLock<T: ?Sized> { + /// The inner [`sys::RwLock`] that synchronizes thread access to the protected data. + inner: sys::RwLock, + /// The lock-protected data. + data: UnsafeCell<T>, +} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +unsafe impl<T: ?Sized + Send> Send for RwLock<T> {} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +unsafe impl<T: ?Sized + Send + Sync> Sync for RwLock<T> {} + +//////////////////////////////////////////////////////////////////////////////////////////////////// +// Guards +//////////////////////////////////////////////////////////////////////////////////////////////////// + +/// RAII structure used to release the shared read access of a lock when +/// dropped. +/// +/// This structure is created by the [`read`] and [`try_read`] methods on +/// [`RwLock`]. +/// +/// [`read`]: RwLock::read +/// [`try_read`]: RwLock::try_read +#[must_use = "if unused the RwLock will immediately unlock"] +#[must_not_suspend = "holding a RwLockReadGuard across suspend \ + points can cause deadlocks, delays, \ + and cause Futures to not implement `Send`"] +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +#[clippy::has_significant_drop] +#[cfg_attr(not(test), rustc_diagnostic_item = "NonPoisonRwLockReadGuard")] +pub struct RwLockReadGuard<'rwlock, T: ?Sized + 'rwlock> { + /// A pointer to the data protected by the `RwLock`. Note that we use a pointer here instead of + /// `&'rwlock T` to avoid `noalias` violations, because a `RwLockReadGuard` instance only holds + /// immutability until it drops, not for its whole scope. + /// `NonNull` is preferable over `*const T` to allow for niche optimizations. `NonNull` is also + /// covariant over `T`, just like we would have with `&T`. + data: NonNull<T>, + /// A reference to the internal [`sys::RwLock`] that we have read-locked. + inner_lock: &'rwlock sys::RwLock, +} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized> !Send for RwLockReadGuard<'_, T> {} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +unsafe impl<T: ?Sized + Sync> Sync for RwLockReadGuard<'_, T> {} + +/// RAII structure used to release the exclusive write access of a lock when +/// dropped. +/// +/// This structure is created by the [`write`] and [`try_write`] methods +/// on [`RwLock`]. +/// +/// [`write`]: RwLock::write +/// [`try_write`]: RwLock::try_write +#[must_use = "if unused the RwLock will immediately unlock"] +#[must_not_suspend = "holding a RwLockWriteGuard across suspend \ + points can cause deadlocks, delays, \ + and cause Future's to not implement `Send`"] +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +#[clippy::has_significant_drop] +#[cfg_attr(not(test), rustc_diagnostic_item = "NonPoisonRwLockWriteGuard")] +pub struct RwLockWriteGuard<'rwlock, T: ?Sized + 'rwlock> { + /// A reference to the [`RwLock`] that we have write-locked. + lock: &'rwlock RwLock<T>, +} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized> !Send for RwLockWriteGuard<'_, T> {} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +unsafe impl<T: ?Sized + Sync> Sync for RwLockWriteGuard<'_, T> {} + +/// RAII structure used to release the shared read access of a lock when +/// dropped, which can point to a subfield of the protected data. +/// +/// This structure is created by the [`map`] and [`filter_map`] methods +/// on [`RwLockReadGuard`]. +/// +/// [`map`]: RwLockReadGuard::map +/// [`filter_map`]: RwLockReadGuard::filter_map +#[must_use = "if unused the RwLock will immediately unlock"] +#[must_not_suspend = "holding a MappedRwLockReadGuard across suspend \ + points can cause deadlocks, delays, \ + and cause Futures to not implement `Send`"] +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +// #[unstable(feature = "nonpoison_rwlock", issue = "134645")] +#[clippy::has_significant_drop] +pub struct MappedRwLockReadGuard<'rwlock, T: ?Sized + 'rwlock> { + /// A pointer to the data protected by the `RwLock`. Note that we use a pointer here instead of + /// `&'rwlock T` to avoid `noalias` violations, because a `MappedRwLockReadGuard` instance only + /// holds immutability until it drops, not for its whole scope. + /// `NonNull` is preferable over `*const T` to allow for niche optimizations. `NonNull` is also + /// covariant over `T`, just like we would have with `&T`. + data: NonNull<T>, + /// A reference to the internal [`sys::RwLock`] that we have read-locked. + inner_lock: &'rwlock sys::RwLock, +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +// #[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized> !Send for MappedRwLockReadGuard<'_, T> {} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +// #[unstable(feature = "nonpoison_rwlock", issue = "134645")] +unsafe impl<T: ?Sized + Sync> Sync for MappedRwLockReadGuard<'_, T> {} + +/// RAII structure used to release the exclusive write access of a lock when +/// dropped, which can point to a subfield of the protected data. +/// +/// This structure is created by the [`map`] and [`filter_map`] methods +/// on [`RwLockWriteGuard`]. +/// +/// [`map`]: RwLockWriteGuard::map +/// [`filter_map`]: RwLockWriteGuard::filter_map +#[must_use = "if unused the RwLock will immediately unlock"] +#[must_not_suspend = "holding a MappedRwLockWriteGuard across suspend \ + points can cause deadlocks, delays, \ + and cause Future's to not implement `Send`"] +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +// #[unstable(feature = "nonpoison_rwlock", issue = "134645")] +#[clippy::has_significant_drop] +pub struct MappedRwLockWriteGuard<'rwlock, T: ?Sized + 'rwlock> { + /// A pointer to the data protected by the `RwLock`. Note that we use a pointer here instead of + /// `&'rwlock T` to avoid `noalias` violations, because a `MappedRwLockWriteGuard` instance only + /// holds uniquneness until it drops, not for its whole scope. + /// `NonNull` is preferable over `*const T` to allow for niche optimizations. + data: NonNull<T>, + /// `NonNull` is covariant over `T`, so we add a `PhantomData<&'rwlock mut T>` field here to + /// enforce the correct invariance over `T`. + _variance: PhantomData<&'rwlock mut T>, + /// A reference to the internal [`sys::RwLock`] that we have write-locked. + inner_lock: &'rwlock sys::RwLock, +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +// #[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized> !Send for MappedRwLockWriteGuard<'_, T> {} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +// #[unstable(feature = "nonpoison_rwlock", issue = "134645")] +unsafe impl<T: ?Sized + Sync> Sync for MappedRwLockWriteGuard<'_, T> {} + +//////////////////////////////////////////////////////////////////////////////////////////////////// +// Implementations +//////////////////////////////////////////////////////////////////////////////////////////////////// + +impl<T> RwLock<T> { + /// Creates a new instance of an `RwLock<T>` which is unlocked. + /// + /// # Examples + /// + /// ``` + /// #![feature(nonpoison_rwlock)] + /// + /// use std::sync::nonpoison::RwLock; + /// + /// let lock = RwLock::new(5); + /// ``` + #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + #[inline] + pub const fn new(t: T) -> RwLock<T> { + RwLock { inner: sys::RwLock::new(), data: UnsafeCell::new(t) } + } + + /// Returns the contained value by cloning it. + /// + /// # Examples + /// + /// ``` + /// #![feature(nonpoison_rwlock)] + /// #![feature(lock_value_accessors)] + /// + /// use std::sync::nonpoison::RwLock; + /// + /// let mut lock = RwLock::new(7); + /// + /// assert_eq!(lock.get_cloned(), 7); + /// ``` + #[unstable(feature = "lock_value_accessors", issue = "133407")] + // #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn get_cloned(&self) -> T + where + T: Clone, + { + self.read().clone() + } + + /// Sets the contained value. + /// + /// # Examples + /// + /// ``` + /// #![feature(nonpoison_rwlock)] + /// #![feature(lock_value_accessors)] + /// + /// use std::sync::nonpoison::RwLock; + /// + /// let mut lock = RwLock::new(7); + /// + /// assert_eq!(lock.get_cloned(), 7); + /// lock.set(11); + /// assert_eq!(lock.get_cloned(), 11); + /// ``` + #[unstable(feature = "lock_value_accessors", issue = "133407")] + // #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn set(&self, value: T) { + if mem::needs_drop::<T>() { + // If the contained value has a non-trivial destructor, we + // call that destructor after the lock has been released. + drop(self.replace(value)) + } else { + *self.write() = value; + } + } + + /// Replaces the contained value with `value`, and returns the old contained value. + /// + /// # Examples + /// + /// ``` + /// #![feature(nonpoison_rwlock)] + /// #![feature(lock_value_accessors)] + /// + /// use std::sync::nonpoison::RwLock; + /// + /// let mut lock = RwLock::new(7); + /// + /// assert_eq!(lock.replace(11), 7); + /// assert_eq!(lock.get_cloned(), 11); + /// ``` + #[unstable(feature = "lock_value_accessors", issue = "133407")] + // #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn replace(&self, value: T) -> T { + let mut guard = self.write(); + mem::replace(&mut *guard, value) + } +} + +impl<T: ?Sized> RwLock<T> { + /// Locks this `RwLock` with shared read access, blocking the current thread + /// until it can be acquired. + /// + /// The calling thread will be blocked until there are no more writers which + /// hold the lock. There may be other readers currently inside the lock when + /// this method returns. This method does not provide any guarantees with + /// respect to the ordering of whether contentious readers or writers will + /// acquire the lock first. + /// + /// Returns an RAII guard which will release this thread's shared access + /// once it is dropped. + /// + /// # Panics + /// + /// This function might panic when called if the lock is already held by the current thread. + /// + /// # Examples + /// + /// ``` + /// #![feature(nonpoison_rwlock)] + /// + /// use std::sync::Arc; + /// use std::sync::nonpoison::RwLock; + /// use std::thread; + /// + /// let lock = Arc::new(RwLock::new(1)); + /// let c_lock = Arc::clone(&lock); + /// + /// let n = lock.read(); + /// assert_eq!(*n, 1); + /// + /// thread::spawn(move || { + /// let r = c_lock.read(); + /// }).join().unwrap(); + /// ``` + #[inline] + #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn read(&self) -> RwLockReadGuard<'_, T> { + unsafe { + self.inner.read(); + RwLockReadGuard::new(self) + } + } + + /// Attempts to acquire this `RwLock` with shared read access. + /// + /// If the access could not be granted at this time, then `Err` is returned. + /// Otherwise, an RAII guard is returned which will release the shared access + /// when it is dropped. + /// + /// This function does not block. + /// + /// This function does not provide any guarantees with respect to the ordering + /// of whether contentious readers or writers will acquire the lock first. + /// + /// # Errors + /// + /// This function will return the [`WouldBlock`] error if the `RwLock` could + /// not be acquired because it was already locked exclusively. + /// + /// # Examples + /// + /// ``` + /// #![feature(nonpoison_rwlock)] + /// + /// use std::sync::nonpoison::RwLock; + /// + /// let lock = RwLock::new(1); + /// + /// match lock.try_read() { + /// Ok(n) => assert_eq!(*n, 1), + /// Err(_) => unreachable!(), + /// }; + /// ``` + #[inline] + #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn try_read(&self) -> TryLockResult<RwLockReadGuard<'_, T>> { + unsafe { + if self.inner.try_read() { Ok(RwLockReadGuard::new(self)) } else { Err(WouldBlock) } + } + } + + /// Locks this `RwLock` with exclusive write access, blocking the current + /// thread until it can be acquired. + /// + /// This function will not return while other writers or other readers + /// currently have access to the lock. + /// + /// Returns an RAII guard which will drop the write access of this `RwLock` + /// when dropped. + /// + /// # Panics + /// + /// This function might panic when called if the lock is already held by the current thread. + /// + /// # Examples + /// + /// ``` + /// #![feature(nonpoison_rwlock)] + /// + /// use std::sync::nonpoison::RwLock; + /// + /// let lock = RwLock::new(1); + /// + /// let mut n = lock.write(); + /// *n = 2; + /// + /// assert!(lock.try_read().is_err()); + /// ``` + #[inline] + #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn write(&self) -> RwLockWriteGuard<'_, T> { + unsafe { + self.inner.write(); + RwLockWriteGuard::new(self) + } + } + + /// Attempts to lock this `RwLock` with exclusive write access. + /// + /// If the lock could not be acquired at this time, then `Err` is returned. + /// Otherwise, an RAII guard is returned which will release the lock when + /// it is dropped. + /// + /// This function does not block. + /// + /// This function does not provide any guarantees with respect to the ordering + /// of whether contentious readers or writers will acquire the lock first. + /// + /// # Errors + /// + /// This function will return the [`WouldBlock`] error if the `RwLock` could + /// not be acquired because it was already locked. + /// + /// [`WouldBlock`]: WouldBlock + /// + /// # Examples + /// + /// ``` + /// #![feature(nonpoison_rwlock)] + /// + /// use std::sync::nonpoison::RwLock; + /// + /// let lock = RwLock::new(1); + /// + /// let n = lock.read(); + /// assert_eq!(*n, 1); + /// + /// assert!(lock.try_write().is_err()); + /// ``` + #[inline] + #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn try_write(&self) -> TryLockResult<RwLockWriteGuard<'_, T>> { + unsafe { + if self.inner.try_write() { Ok(RwLockWriteGuard::new(self)) } else { Err(WouldBlock) } + } + } + + /// Consumes this `RwLock`, returning the underlying data. + /// + /// # Examples + /// + /// ``` + /// #![feature(nonpoison_rwlock)] + /// + /// use std::sync::nonpoison::RwLock; + /// + /// let lock = RwLock::new(String::new()); + /// { + /// let mut s = lock.write(); + /// *s = "modified".to_owned(); + /// } + /// assert_eq!(lock.into_inner(), "modified"); + /// ``` + #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn into_inner(self) -> T + where + T: Sized, + { + self.data.into_inner() + } + + /// Returns a mutable reference to the underlying data. + /// + /// Since this call borrows the `RwLock` mutably, no actual locking needs to + /// take place -- the mutable borrow statically guarantees no new locks can be acquired + /// while this reference exists. Note that this method does not clear any previously abandoned + /// locks (e.g., via [`forget()`] on a [`RwLockReadGuard`] or [`RwLockWriteGuard`]). + /// + /// # Examples + /// + /// ``` + /// #![feature(nonpoison_rwlock)] + /// + /// use std::sync::nonpoison::RwLock; + /// + /// let mut lock = RwLock::new(0); + /// *lock.get_mut() = 10; + /// assert_eq!(*lock.read(), 10); + /// ``` + #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn get_mut(&mut self) -> &mut T { + self.data.get_mut() + } + + /// Returns a raw pointer to the underlying data. + /// + /// The returned pointer is always non-null and properly aligned, but it is + /// the user's responsibility to ensure that any reads and writes through it + /// are properly synchronized to avoid data races, and that it is not read + /// or written through after the lock is dropped. + #[unstable(feature = "rwlock_data_ptr", issue = "140368")] + // #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn data_ptr(&self) -> *mut T { + self.data.get() + } +} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized + fmt::Debug> fmt::Debug for RwLock<T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + let mut d = f.debug_struct("RwLock"); + match self.try_read() { + Ok(guard) => { + d.field("data", &&*guard); + } + Err(WouldBlock) => { + d.field("data", &format_args!("<locked>")); + } + } + d.finish_non_exhaustive() + } +} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: Default> Default for RwLock<T> { + /// Creates a new `RwLock<T>`, with the `Default` value for T. + fn default() -> RwLock<T> { + RwLock::new(Default::default()) + } +} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T> From<T> for RwLock<T> { + /// Creates a new instance of an `RwLock<T>` which is unlocked. + /// This is equivalent to [`RwLock::new`]. + fn from(t: T) -> Self { + RwLock::new(t) + } +} + +impl<'rwlock, T: ?Sized> RwLockReadGuard<'rwlock, T> { + /// Creates a new instance of `RwLockReadGuard<T>` from a `RwLock<T>`. + /// + /// # Safety + /// + /// This function is safe if and only if the same thread has successfully and safely called + /// `lock.inner.read()`, `lock.inner.try_read()`, or `lock.inner.downgrade()` before + /// instantiating this object. + unsafe fn new(lock: &'rwlock RwLock<T>) -> RwLockReadGuard<'rwlock, T> { + RwLockReadGuard { + data: unsafe { NonNull::new_unchecked(lock.data.get()) }, + inner_lock: &lock.inner, + } + } + + /// Makes a [`MappedRwLockReadGuard`] for a component of the borrowed data, e.g. + /// an enum variant. + /// + /// The `RwLock` is already locked for reading, so this cannot fail. + /// + /// This is an associated function that needs to be used as + /// `RwLockReadGuard::map(...)`. A method would interfere with methods of + /// the same name on the contents of the `RwLockReadGuard` used through + /// `Deref`. + /// + /// # Panics + /// + /// If the closure panics, the guard will be dropped (unlocked). + #[unstable(feature = "mapped_lock_guards", issue = "117108")] + // #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn map<U, F>(orig: Self, f: F) -> MappedRwLockReadGuard<'rwlock, U> + where + F: FnOnce(&T) -> &U, + U: ?Sized, + { + // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + // The signature of the closure guarantees that it will not "leak" the lifetime of the + // reference passed to it. If the closure panics, the guard will be dropped. + let data = NonNull::from(f(unsafe { orig.data.as_ref() })); + let orig = ManuallyDrop::new(orig); + MappedRwLockReadGuard { data, inner_lock: &orig.inner_lock } + } + + /// Makes a [`MappedRwLockReadGuard`] for a component of the borrowed data. The + /// original guard is returned as an `Err(...)` if the closure returns + /// `None`. + /// + /// The `RwLock` is already locked for reading, so this cannot fail. + /// + /// This is an associated function that needs to be used as + /// `RwLockReadGuard::filter_map(...)`. A method would interfere with methods + /// of the same name on the contents of the `RwLockReadGuard` used through + /// `Deref`. + /// + /// # Panics + /// + /// If the closure panics, the guard will be dropped (unlocked). + #[unstable(feature = "mapped_lock_guards", issue = "117108")] + // #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn filter_map<U, F>(orig: Self, f: F) -> Result<MappedRwLockReadGuard<'rwlock, U>, Self> + where + F: FnOnce(&T) -> Option<&U>, + U: ?Sized, + { + // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + // The signature of the closure guarantees that it will not "leak" the lifetime of the + // reference passed to it. If the closure panics, the guard will be dropped. + match f(unsafe { orig.data.as_ref() }) { + Some(data) => { + let data = NonNull::from(data); + let orig = ManuallyDrop::new(orig); + Ok(MappedRwLockReadGuard { data, inner_lock: &orig.inner_lock }) + } + None => Err(orig), + } + } +} + +impl<'rwlock, T: ?Sized> RwLockWriteGuard<'rwlock, T> { + /// Creates a new instance of `RwLockWriteGuard<T>` from a `RwLock<T>`. + /// + /// # Safety + /// + /// This function is safe if and only if the same thread has successfully and safely called + /// `lock.inner.write()`, `lock.inner.try_write()`, or `lock.inner.try_upgrade` before + /// instantiating this object. + unsafe fn new(lock: &'rwlock RwLock<T>) -> RwLockWriteGuard<'rwlock, T> { + RwLockWriteGuard { lock } + } + + /// Downgrades a write-locked `RwLockWriteGuard` into a read-locked [`RwLockReadGuard`]. + /// + /// Since we have the `RwLockWriteGuard`, the [`RwLock`] must already be locked for writing, so + /// this method cannot fail. + /// + /// After downgrading, other readers will be allowed to read the protected data. + /// + /// # Examples + /// + /// `downgrade` takes ownership of the `RwLockWriteGuard` and returns a [`RwLockReadGuard`]. + /// + /// ``` + /// #![feature(nonpoison_rwlock)] + /// #![feature(rwlock_downgrade)] + /// + /// use std::sync::nonpoison::{RwLock, RwLockWriteGuard}; + /// + /// let rw = RwLock::new(0); + /// + /// let mut write_guard = rw.write(); + /// *write_guard = 42; + /// + /// let read_guard = RwLockWriteGuard::downgrade(write_guard); + /// assert_eq!(42, *read_guard); + /// ``` + /// + /// `downgrade` will _atomically_ change the state of the [`RwLock`] from exclusive mode into + /// shared mode. This means that it is impossible for another writing thread to get in between a + /// thread calling `downgrade` and any reads it performs after downgrading. + /// + /// ``` + /// #![feature(nonpoison_rwlock)] + /// #![feature(rwlock_downgrade)] + /// + /// use std::sync::Arc; + /// use std::sync::nonpoison::{RwLock, RwLockWriteGuard}; + /// + /// let rw = Arc::new(RwLock::new(1)); + /// + /// // Put the lock in write mode. + /// let mut main_write_guard = rw.write(); + /// + /// let rw_clone = rw.clone(); + /// let evil_handle = std::thread::spawn(move || { + /// // This will not return until the main thread drops the `main_read_guard`. + /// let mut evil_guard = rw_clone.write(); + /// + /// assert_eq!(*evil_guard, 2); + /// *evil_guard = 3; + /// }); + /// + /// *main_write_guard = 2; + /// + /// // Atomically downgrade the write guard into a read guard. + /// let main_read_guard = RwLockWriteGuard::downgrade(main_write_guard); + /// + /// // Since `downgrade` is atomic, the writer thread cannot have changed the protected data. + /// assert_eq!(*main_read_guard, 2, "`downgrade` was not atomic"); + /// # + /// # drop(main_read_guard); + /// # evil_handle.join().unwrap(); + /// # + /// # let final_check = rw.read(); + /// # assert_eq!(*final_check, 3); + /// ``` + #[unstable(feature = "rwlock_downgrade", issue = "128203")] + // #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn downgrade(s: Self) -> RwLockReadGuard<'rwlock, T> { + let lock = s.lock; + + // We don't want to call the destructor since that calls `write_unlock`. + forget(s); + + // SAFETY: We take ownership of a write guard, so we must already have the `RwLock` in write + // mode, satisfying the `downgrade` contract. + unsafe { lock.inner.downgrade() }; + + // SAFETY: We have just successfully called `downgrade`, so we fulfill the safety contract. + unsafe { RwLockReadGuard::new(lock) } + } + + /// Makes a [`MappedRwLockWriteGuard`] for a component of the borrowed data, e.g. + /// an enum variant. + /// + /// The `RwLock` is already locked for writing, so this cannot fail. + /// + /// This is an associated function that needs to be used as + /// `RwLockWriteGuard::map(...)`. A method would interfere with methods of + /// the same name on the contents of the `RwLockWriteGuard` used through + /// `Deref`. + /// + /// # Panics + /// + /// If the closure panics, the guard will be dropped (unlocked). + #[unstable(feature = "mapped_lock_guards", issue = "117108")] + // #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn map<U, F>(orig: Self, f: F) -> MappedRwLockWriteGuard<'rwlock, U> + where + F: FnOnce(&mut T) -> &mut U, + U: ?Sized, + { + // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + // The signature of the closure guarantees that it will not "leak" the lifetime of the + // reference passed to it. If the closure panics, the guard will be dropped. + let data = NonNull::from(f(unsafe { &mut *orig.lock.data.get() })); + let orig = ManuallyDrop::new(orig); + MappedRwLockWriteGuard { data, inner_lock: &orig.lock.inner, _variance: PhantomData } + } + + /// Makes a [`MappedRwLockWriteGuard`] for a component of the borrowed data. The + /// original guard is returned as an `Err(...)` if the closure returns + /// `None`. + /// + /// The `RwLock` is already locked for writing, so this cannot fail. + /// + /// This is an associated function that needs to be used as + /// `RwLockWriteGuard::filter_map(...)`. A method would interfere with methods + /// of the same name on the contents of the `RwLockWriteGuard` used through + /// `Deref`. + /// + /// # Panics + /// + /// If the closure panics, the guard will be dropped (unlocked). + #[unstable(feature = "mapped_lock_guards", issue = "117108")] + // #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn filter_map<U, F>(orig: Self, f: F) -> Result<MappedRwLockWriteGuard<'rwlock, U>, Self> + where + F: FnOnce(&mut T) -> Option<&mut U>, + U: ?Sized, + { + // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + // The signature of the closure guarantees that it will not "leak" the lifetime of the + // reference passed to it. If the closure panics, the guard will be dropped. + match f(unsafe { &mut *orig.lock.data.get() }) { + Some(data) => { + let data = NonNull::from(data); + let orig = ManuallyDrop::new(orig); + Ok(MappedRwLockWriteGuard { + data, + inner_lock: &orig.lock.inner, + _variance: PhantomData, + }) + } + None => Err(orig), + } + } +} + +impl<'rwlock, T: ?Sized> MappedRwLockReadGuard<'rwlock, T> { + /// Makes a [`MappedRwLockReadGuard`] for a component of the borrowed data, + /// e.g. an enum variant. + /// + /// The `RwLock` is already locked for reading, so this cannot fail. + /// + /// This is an associated function that needs to be used as + /// `MappedRwLockReadGuard::map(...)`. A method would interfere with + /// methods of the same name on the contents of the `MappedRwLockReadGuard` + /// used through `Deref`. + /// + /// # Panics + /// + /// If the closure panics, the guard will be dropped (unlocked). + #[unstable(feature = "mapped_lock_guards", issue = "117108")] + // #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn map<U, F>(orig: Self, f: F) -> MappedRwLockReadGuard<'rwlock, U> + where + F: FnOnce(&T) -> &U, + U: ?Sized, + { + // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + // The signature of the closure guarantees that it will not "leak" the lifetime of the + // reference passed to it. If the closure panics, the guard will be dropped. + let data = NonNull::from(f(unsafe { orig.data.as_ref() })); + let orig = ManuallyDrop::new(orig); + MappedRwLockReadGuard { data, inner_lock: &orig.inner_lock } + } + + /// Makes a [`MappedRwLockReadGuard`] for a component of the borrowed data. + /// The original guard is returned as an `Err(...)` if the closure returns + /// `None`. + /// + /// The `RwLock` is already locked for reading, so this cannot fail. + /// + /// This is an associated function that needs to be used as + /// `MappedRwLockReadGuard::filter_map(...)`. A method would interfere with + /// methods of the same name on the contents of the `MappedRwLockReadGuard` + /// used through `Deref`. + /// + /// # Panics + /// + /// If the closure panics, the guard will be dropped (unlocked). + #[unstable(feature = "mapped_lock_guards", issue = "117108")] + // #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn filter_map<U, F>(orig: Self, f: F) -> Result<MappedRwLockReadGuard<'rwlock, U>, Self> + where + F: FnOnce(&T) -> Option<&U>, + U: ?Sized, + { + // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + // The signature of the closure guarantees that it will not "leak" the lifetime of the + // reference passed to it. If the closure panics, the guard will be dropped. + match f(unsafe { orig.data.as_ref() }) { + Some(data) => { + let data = NonNull::from(data); + let orig = ManuallyDrop::new(orig); + Ok(MappedRwLockReadGuard { data, inner_lock: &orig.inner_lock }) + } + None => Err(orig), + } + } +} + +impl<'rwlock, T: ?Sized> MappedRwLockWriteGuard<'rwlock, T> { + /// Makes a [`MappedRwLockWriteGuard`] for a component of the borrowed data, + /// e.g. an enum variant. + /// + /// The `RwLock` is already locked for writing, so this cannot fail. + /// + /// This is an associated function that needs to be used as + /// `MappedRwLockWriteGuard::map(...)`. A method would interfere with + /// methods of the same name on the contents of the `MappedRwLockWriteGuard` + /// used through `Deref`. + /// + /// # Panics + /// + /// If the closure panics, the guard will be dropped (unlocked). + #[unstable(feature = "mapped_lock_guards", issue = "117108")] + // #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn map<U, F>(mut orig: Self, f: F) -> MappedRwLockWriteGuard<'rwlock, U> + where + F: FnOnce(&mut T) -> &mut U, + U: ?Sized, + { + // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + // The signature of the closure guarantees that it will not "leak" the lifetime of the + // reference passed to it. If the closure panics, the guard will be dropped. + let data = NonNull::from(f(unsafe { orig.data.as_mut() })); + let orig = ManuallyDrop::new(orig); + MappedRwLockWriteGuard { data, inner_lock: orig.inner_lock, _variance: PhantomData } + } + + /// Makes a [`MappedRwLockWriteGuard`] for a component of the borrowed data. + /// The original guard is returned as an `Err(...)` if the closure returns + /// `None`. + /// + /// The `RwLock` is already locked for writing, so this cannot fail. + /// + /// This is an associated function that needs to be used as + /// `MappedRwLockWriteGuard::filter_map(...)`. A method would interfere with + /// methods of the same name on the contents of the `MappedRwLockWriteGuard` + /// used through `Deref`. + /// + /// # Panics + /// + /// If the closure panics, the guard will be dropped (unlocked). + #[unstable(feature = "mapped_lock_guards", issue = "117108")] + // #[unstable(feature = "nonpoison_rwlock", issue = "134645")] + pub fn filter_map<U, F>( + mut orig: Self, + f: F, + ) -> Result<MappedRwLockWriteGuard<'rwlock, U>, Self> + where + F: FnOnce(&mut T) -> Option<&mut U>, + U: ?Sized, + { + // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + // The signature of the closure guarantees that it will not "leak" the lifetime of the + // reference passed to it. If the closure panics, the guard will be dropped. + match f(unsafe { orig.data.as_mut() }) { + Some(data) => { + let data = NonNull::from(data); + let orig = ManuallyDrop::new(orig); + Ok(MappedRwLockWriteGuard { + data, + inner_lock: orig.inner_lock, + _variance: PhantomData, + }) + } + None => Err(orig), + } + } +} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized> Drop for RwLockReadGuard<'_, T> { + fn drop(&mut self) { + // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when created. + unsafe { + self.inner_lock.read_unlock(); + } + } +} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized> Drop for RwLockWriteGuard<'_, T> { + fn drop(&mut self) { + // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when created. + unsafe { + self.lock.inner.write_unlock(); + } + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +// #[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized> Drop for MappedRwLockReadGuard<'_, T> { + fn drop(&mut self) { + // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + unsafe { + self.inner_lock.read_unlock(); + } + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +// #[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized> Drop for MappedRwLockWriteGuard<'_, T> { + fn drop(&mut self) { + // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + unsafe { + self.inner_lock.write_unlock(); + } + } +} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized> Deref for RwLockReadGuard<'_, T> { + type Target = T; + + fn deref(&self) -> &T { + // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when created. + unsafe { self.data.as_ref() } + } +} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized> Deref for RwLockWriteGuard<'_, T> { + type Target = T; + + fn deref(&self) -> &T { + // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when created. + unsafe { &*self.lock.data.get() } + } +} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized> DerefMut for RwLockWriteGuard<'_, T> { + fn deref_mut(&mut self) -> &mut T { + // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when created. + unsafe { &mut *self.lock.data.get() } + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +// #[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized> Deref for MappedRwLockReadGuard<'_, T> { + type Target = T; + + fn deref(&self) -> &T { + // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + unsafe { self.data.as_ref() } + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +// #[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized> Deref for MappedRwLockWriteGuard<'_, T> { + type Target = T; + + fn deref(&self) -> &T { + // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + unsafe { self.data.as_ref() } + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +// #[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized> DerefMut for MappedRwLockWriteGuard<'_, T> { + fn deref_mut(&mut self) -> &mut T { + // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + unsafe { self.data.as_mut() } + } +} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized + fmt::Debug> fmt::Debug for RwLockReadGuard<'_, T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + (**self).fmt(f) + } +} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized + fmt::Display> fmt::Display for RwLockReadGuard<'_, T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + (**self).fmt(f) + } +} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized + fmt::Debug> fmt::Debug for RwLockWriteGuard<'_, T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + (**self).fmt(f) + } +} + +#[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized + fmt::Display> fmt::Display for RwLockWriteGuard<'_, T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + (**self).fmt(f) + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +// #[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized + fmt::Debug> fmt::Debug for MappedRwLockReadGuard<'_, T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + (**self).fmt(f) + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +// #[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized + fmt::Display> fmt::Display for MappedRwLockReadGuard<'_, T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + (**self).fmt(f) + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +// #[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized + fmt::Debug> fmt::Debug for MappedRwLockWriteGuard<'_, T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + (**self).fmt(f) + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +// #[unstable(feature = "nonpoison_rwlock", issue = "134645")] +impl<T: ?Sized + fmt::Display> fmt::Display for MappedRwLockWriteGuard<'_, T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + (**self).fmt(f) + } +} diff --git a/library/std/src/sync/poison/mutex.rs b/library/std/src/sync/poison/mutex.rs index 6205c4fa4ca..720c212c65c 100644 --- a/library/std/src/sync/poison/mutex.rs +++ b/library/std/src/sync/poison/mutex.rs @@ -279,7 +279,7 @@ pub struct MutexGuard<'a, T: ?Sized + 'a> { poison: poison::Guard, } -/// A [`MutexGuard`] is not `Send` to maximize platform portablity. +/// A [`MutexGuard`] is not `Send` to maximize platform portability. /// /// On platforms that use POSIX threads (commonly referred to as pthreads) there is a requirement to /// release mutex locks on the same thread they were acquired. diff --git a/library/std/src/sync/poison/rwlock.rs b/library/std/src/sync/poison/rwlock.rs index 2c92602bc87..0a463f3f9c7 100644 --- a/library/std/src/sync/poison/rwlock.rs +++ b/library/std/src/sync/poison/rwlock.rs @@ -80,16 +80,24 @@ use crate::sys::sync as sys; #[stable(feature = "rust1", since = "1.0.0")] #[cfg_attr(not(test), rustc_diagnostic_item = "RwLock")] pub struct RwLock<T: ?Sized> { + /// The inner [`sys::RwLock`] that synchronizes thread access to the protected data. inner: sys::RwLock, + /// A flag denoting if this `RwLock` has been poisoned. poison: poison::Flag, + /// The lock-protected data. data: UnsafeCell<T>, } #[stable(feature = "rust1", since = "1.0.0")] unsafe impl<T: ?Sized + Send> Send for RwLock<T> {} + #[stable(feature = "rust1", since = "1.0.0")] unsafe impl<T: ?Sized + Send + Sync> Sync for RwLock<T> {} +//////////////////////////////////////////////////////////////////////////////////////////////////// +// Guards +//////////////////////////////////////////////////////////////////////////////////////////////////// + /// RAII structure used to release the shared read access of a lock when /// dropped. /// @@ -105,13 +113,15 @@ unsafe impl<T: ?Sized + Send + Sync> Sync for RwLock<T> {} #[stable(feature = "rust1", since = "1.0.0")] #[clippy::has_significant_drop] #[cfg_attr(not(test), rustc_diagnostic_item = "RwLockReadGuard")] -pub struct RwLockReadGuard<'a, T: ?Sized + 'a> { - // NB: we use a pointer instead of `&'a T` to avoid `noalias` violations, because a - // `RwLockReadGuard` argument doesn't hold immutability for its whole scope, only until it drops. - // `NonNull` is also covariant over `T`, just like we would have with `&T`. `NonNull` - // is preferable over `const* T` to allow for niche optimization. +pub struct RwLockReadGuard<'rwlock, T: ?Sized + 'rwlock> { + /// A pointer to the data protected by the `RwLock`. Note that we use a pointer here instead of + /// `&'rwlock T` to avoid `noalias` violations, because a `RwLockReadGuard` instance only holds + /// immutability until it drops, not for its whole scope. + /// `NonNull` is preferable over `*const T` to allow for niche optimizations. `NonNull` is also + /// covariant over `T`, just like we would have with `&T`. data: NonNull<T>, - inner_lock: &'a sys::RwLock, + /// A reference to the internal [`sys::RwLock`] that we have read-locked. + inner_lock: &'rwlock sys::RwLock, } #[stable(feature = "rust1", since = "1.0.0")] @@ -135,8 +145,10 @@ unsafe impl<T: ?Sized + Sync> Sync for RwLockReadGuard<'_, T> {} #[stable(feature = "rust1", since = "1.0.0")] #[clippy::has_significant_drop] #[cfg_attr(not(test), rustc_diagnostic_item = "RwLockWriteGuard")] -pub struct RwLockWriteGuard<'a, T: ?Sized + 'a> { - lock: &'a RwLock<T>, +pub struct RwLockWriteGuard<'rwlock, T: ?Sized + 'rwlock> { + /// A reference to the [`RwLock`] that we have write-locked. + lock: &'rwlock RwLock<T>, + /// The poison guard. See the [`poison`] module for more information. poison: poison::Guard, } @@ -160,13 +172,15 @@ unsafe impl<T: ?Sized + Sync> Sync for RwLockWriteGuard<'_, T> {} and cause Futures to not implement `Send`"] #[unstable(feature = "mapped_lock_guards", issue = "117108")] #[clippy::has_significant_drop] -pub struct MappedRwLockReadGuard<'a, T: ?Sized + 'a> { - // NB: we use a pointer instead of `&'a T` to avoid `noalias` violations, because a - // `MappedRwLockReadGuard` argument doesn't hold immutability for its whole scope, only until it drops. - // `NonNull` is also covariant over `T`, just like we would have with `&T`. `NonNull` - // is preferable over `const* T` to allow for niche optimization. +pub struct MappedRwLockReadGuard<'rwlock, T: ?Sized + 'rwlock> { + /// A pointer to the data protected by the `RwLock`. Note that we use a pointer here instead of + /// `&'rwlock T` to avoid `noalias` violations, because a `MappedRwLockReadGuard` instance only + /// holds immutability until it drops, not for its whole scope. + /// `NonNull` is preferable over `*const T` to allow for niche optimizations. `NonNull` is also + /// covariant over `T`, just like we would have with `&T`. data: NonNull<T>, - inner_lock: &'a sys::RwLock, + /// A reference to the internal [`sys::RwLock`] that we have read-locked. + inner_lock: &'rwlock sys::RwLock, } #[unstable(feature = "mapped_lock_guards", issue = "117108")] @@ -189,16 +203,21 @@ unsafe impl<T: ?Sized + Sync> Sync for MappedRwLockReadGuard<'_, T> {} and cause Future's to not implement `Send`"] #[unstable(feature = "mapped_lock_guards", issue = "117108")] #[clippy::has_significant_drop] -pub struct MappedRwLockWriteGuard<'a, T: ?Sized + 'a> { - // NB: we use a pointer instead of `&'a mut T` to avoid `noalias` violations, because a - // `MappedRwLockWriteGuard` argument doesn't hold uniqueness for its whole scope, only until it drops. - // `NonNull` is covariant over `T`, so we add a `PhantomData<&'a mut T>` field - // below for the correct variance over `T` (invariance). +pub struct MappedRwLockWriteGuard<'rwlock, T: ?Sized + 'rwlock> { + /// A pointer to the data protected by the `RwLock`. Note that we use a pointer here instead of + /// `&'rwlock T` to avoid `noalias` violations, because a `MappedRwLockWriteGuard` instance only + /// holds uniquneness until it drops, not for its whole scope. + /// `NonNull` is preferable over `*const T` to allow for niche optimizations. data: NonNull<T>, - inner_lock: &'a sys::RwLock, - poison_flag: &'a poison::Flag, - poison: poison::Guard, - _variance: PhantomData<&'a mut T>, + /// `NonNull` is covariant over `T`, so we add a `PhantomData<&'rwlock mut T>` field here to + /// enforce the correct invariance over `T`. + _variance: PhantomData<&'rwlock mut T>, + /// A reference to the internal [`sys::RwLock`] that we have write-locked. + inner_lock: &'rwlock sys::RwLock, + /// A reference to the original `RwLock`'s poison state. + poison_flag: &'rwlock poison::Flag, + /// The poison guard. See the [`poison`] module for more information. + poison_guard: poison::Guard, } #[unstable(feature = "mapped_lock_guards", issue = "117108")] @@ -207,6 +226,10 @@ impl<T: ?Sized> !Send for MappedRwLockWriteGuard<'_, T> {} #[unstable(feature = "mapped_lock_guards", issue = "117108")] unsafe impl<T: ?Sized + Sync> Sync for MappedRwLockWriteGuard<'_, T> {} +//////////////////////////////////////////////////////////////////////////////////////////////////// +// Implementations +//////////////////////////////////////////////////////////////////////////////////////////////////// + impl<T> RwLock<T> { /// Creates a new instance of an `RwLock<T>` which is unlocked. /// @@ -611,8 +634,8 @@ impl<T: ?Sized> RwLock<T> { /// /// Since this call borrows the `RwLock` mutably, no actual locking needs to /// take place -- the mutable borrow statically guarantees no new locks can be acquired - /// while this reference exists. Note that this method does not clear any previously abandoned locks - /// (e.g., via [`forget()`] on a [`RwLockReadGuard`] or [`RwLockWriteGuard`]). + /// while this reference exists. Note that this method does not clear any previously abandoned + /// locks (e.g., via [`forget()`] on a [`RwLockReadGuard`] or [`RwLockWriteGuard`]). /// /// # Errors /// @@ -700,177 +723,7 @@ impl<'rwlock, T: ?Sized> RwLockReadGuard<'rwlock, T> { inner_lock: &lock.inner, }) } -} - -impl<'rwlock, T: ?Sized> RwLockWriteGuard<'rwlock, T> { - /// Creates a new instance of `RwLockWriteGuard<T>` from a `RwLock<T>`. - // SAFETY: if and only if `lock.inner.write()` (or `lock.inner.try_write()`) has been - // successfully called from the same thread before instantiating this object. - unsafe fn new(lock: &'rwlock RwLock<T>) -> LockResult<RwLockWriteGuard<'rwlock, T>> { - poison::map_result(lock.poison.guard(), |guard| RwLockWriteGuard { lock, poison: guard }) - } -} - -#[stable(feature = "std_debug", since = "1.16.0")] -impl<T: ?Sized + fmt::Debug> fmt::Debug for RwLockReadGuard<'_, T> { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - (**self).fmt(f) - } -} - -#[stable(feature = "std_guard_impls", since = "1.20.0")] -impl<T: ?Sized + fmt::Display> fmt::Display for RwLockReadGuard<'_, T> { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - (**self).fmt(f) - } -} - -#[stable(feature = "std_debug", since = "1.16.0")] -impl<T: ?Sized + fmt::Debug> fmt::Debug for RwLockWriteGuard<'_, T> { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - (**self).fmt(f) - } -} - -#[stable(feature = "std_guard_impls", since = "1.20.0")] -impl<T: ?Sized + fmt::Display> fmt::Display for RwLockWriteGuard<'_, T> { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - (**self).fmt(f) - } -} - -#[unstable(feature = "mapped_lock_guards", issue = "117108")] -impl<T: ?Sized + fmt::Debug> fmt::Debug for MappedRwLockReadGuard<'_, T> { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - (**self).fmt(f) - } -} - -#[unstable(feature = "mapped_lock_guards", issue = "117108")] -impl<T: ?Sized + fmt::Display> fmt::Display for MappedRwLockReadGuard<'_, T> { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - (**self).fmt(f) - } -} - -#[unstable(feature = "mapped_lock_guards", issue = "117108")] -impl<T: ?Sized + fmt::Debug> fmt::Debug for MappedRwLockWriteGuard<'_, T> { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - (**self).fmt(f) - } -} - -#[unstable(feature = "mapped_lock_guards", issue = "117108")] -impl<T: ?Sized + fmt::Display> fmt::Display for MappedRwLockWriteGuard<'_, T> { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - (**self).fmt(f) - } -} - -#[stable(feature = "rust1", since = "1.0.0")] -impl<T: ?Sized> Deref for RwLockReadGuard<'_, T> { - type Target = T; - - fn deref(&self) -> &T { - // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when created. - unsafe { self.data.as_ref() } - } -} - -#[stable(feature = "rust1", since = "1.0.0")] -impl<T: ?Sized> Deref for RwLockWriteGuard<'_, T> { - type Target = T; - - fn deref(&self) -> &T { - // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when created. - unsafe { &*self.lock.data.get() } - } -} - -#[stable(feature = "rust1", since = "1.0.0")] -impl<T: ?Sized> DerefMut for RwLockWriteGuard<'_, T> { - fn deref_mut(&mut self) -> &mut T { - // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when created. - unsafe { &mut *self.lock.data.get() } - } -} - -#[unstable(feature = "mapped_lock_guards", issue = "117108")] -impl<T: ?Sized> Deref for MappedRwLockReadGuard<'_, T> { - type Target = T; - - fn deref(&self) -> &T { - // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when the original guard - // was created, and have been upheld throughout `map` and/or `filter_map`. - unsafe { self.data.as_ref() } - } -} - -#[unstable(feature = "mapped_lock_guards", issue = "117108")] -impl<T: ?Sized> Deref for MappedRwLockWriteGuard<'_, T> { - type Target = T; - - fn deref(&self) -> &T { - // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard - // was created, and have been upheld throughout `map` and/or `filter_map`. - unsafe { self.data.as_ref() } - } -} - -#[unstable(feature = "mapped_lock_guards", issue = "117108")] -impl<T: ?Sized> DerefMut for MappedRwLockWriteGuard<'_, T> { - fn deref_mut(&mut self) -> &mut T { - // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard - // was created, and have been upheld throughout `map` and/or `filter_map`. - unsafe { self.data.as_mut() } - } -} - -#[stable(feature = "rust1", since = "1.0.0")] -impl<T: ?Sized> Drop for RwLockReadGuard<'_, T> { - fn drop(&mut self) { - // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when created. - unsafe { - self.inner_lock.read_unlock(); - } - } -} - -#[stable(feature = "rust1", since = "1.0.0")] -impl<T: ?Sized> Drop for RwLockWriteGuard<'_, T> { - fn drop(&mut self) { - self.lock.poison.done(&self.poison); - // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when created. - unsafe { - self.lock.inner.write_unlock(); - } - } -} - -#[unstable(feature = "mapped_lock_guards", issue = "117108")] -impl<T: ?Sized> Drop for MappedRwLockReadGuard<'_, T> { - fn drop(&mut self) { - // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when the original guard - // was created, and have been upheld throughout `map` and/or `filter_map`. - unsafe { - self.inner_lock.read_unlock(); - } - } -} - -#[unstable(feature = "mapped_lock_guards", issue = "117108")] -impl<T: ?Sized> Drop for MappedRwLockWriteGuard<'_, T> { - fn drop(&mut self) { - self.poison_flag.done(&self.poison); - // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard - // was created, and have been upheld throughout `map` and/or `filter_map`. - unsafe { - self.inner_lock.write_unlock(); - } - } -} -impl<'a, T: ?Sized> RwLockReadGuard<'a, T> { /// Makes a [`MappedRwLockReadGuard`] for a component of the borrowed data, e.g. /// an enum variant. /// @@ -883,17 +736,18 @@ impl<'a, T: ?Sized> RwLockReadGuard<'a, T> { /// /// # Panics /// - /// If the closure panics, the guard will be dropped (unlocked) and the RwLock will not be poisoned. + /// If the closure panics, the guard will be dropped (unlocked) and the RwLock will not be + /// poisoned. #[unstable(feature = "mapped_lock_guards", issue = "117108")] - pub fn map<U, F>(orig: Self, f: F) -> MappedRwLockReadGuard<'a, U> + pub fn map<U, F>(orig: Self, f: F) -> MappedRwLockReadGuard<'rwlock, U> where F: FnOnce(&T) -> &U, U: ?Sized, { // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when the original guard // was created, and have been upheld throughout `map` and/or `filter_map`. - // The signature of the closure guarantees that it will not "leak" the lifetime of the reference - // passed to it. If the closure panics, the guard will be dropped. + // The signature of the closure guarantees that it will not "leak" the lifetime of the + // reference passed to it. If the closure panics, the guard will be dropped. let data = NonNull::from(f(unsafe { orig.data.as_ref() })); let orig = ManuallyDrop::new(orig); MappedRwLockReadGuard { data, inner_lock: &orig.inner_lock } @@ -912,17 +766,18 @@ impl<'a, T: ?Sized> RwLockReadGuard<'a, T> { /// /// # Panics /// - /// If the closure panics, the guard will be dropped (unlocked) and the RwLock will not be poisoned. + /// If the closure panics, the guard will be dropped (unlocked) and the RwLock will not be + /// poisoned. #[unstable(feature = "mapped_lock_guards", issue = "117108")] - pub fn filter_map<U, F>(orig: Self, f: F) -> Result<MappedRwLockReadGuard<'a, U>, Self> + pub fn filter_map<U, F>(orig: Self, f: F) -> Result<MappedRwLockReadGuard<'rwlock, U>, Self> where F: FnOnce(&T) -> Option<&U>, U: ?Sized, { // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when the original guard // was created, and have been upheld throughout `map` and/or `filter_map`. - // The signature of the closure guarantees that it will not "leak" the lifetime of the reference - // passed to it. If the closure panics, the guard will be dropped. + // The signature of the closure guarantees that it will not "leak" the lifetime of the + // reference passed to it. If the closure panics, the guard will be dropped. match f(unsafe { orig.data.as_ref() }) { Some(data) => { let data = NonNull::from(data); @@ -934,71 +789,95 @@ impl<'a, T: ?Sized> RwLockReadGuard<'a, T> { } } -impl<'a, T: ?Sized> MappedRwLockReadGuard<'a, T> { - /// Makes a [`MappedRwLockReadGuard`] for a component of the borrowed data, - /// e.g. an enum variant. - /// - /// The `RwLock` is already locked for reading, so this cannot fail. - /// - /// This is an associated function that needs to be used as - /// `MappedRwLockReadGuard::map(...)`. A method would interfere with - /// methods of the same name on the contents of the `MappedRwLockReadGuard` - /// used through `Deref`. +impl<'rwlock, T: ?Sized> RwLockWriteGuard<'rwlock, T> { + /// Creates a new instance of `RwLockWriteGuard<T>` from a `RwLock<T>`. /// - /// # Panics + /// # Safety /// - /// If the closure panics, the guard will be dropped (unlocked) and the RwLock will not be poisoned. - #[unstable(feature = "mapped_lock_guards", issue = "117108")] - pub fn map<U, F>(orig: Self, f: F) -> MappedRwLockReadGuard<'a, U> - where - F: FnOnce(&T) -> &U, - U: ?Sized, - { - // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when the original guard - // was created, and have been upheld throughout `map` and/or `filter_map`. - // The signature of the closure guarantees that it will not "leak" the lifetime of the reference - // passed to it. If the closure panics, the guard will be dropped. - let data = NonNull::from(f(unsafe { orig.data.as_ref() })); - let orig = ManuallyDrop::new(orig); - MappedRwLockReadGuard { data, inner_lock: &orig.inner_lock } + /// This function is safe if and only if the same thread has successfully and safely called + /// `lock.inner.write()`, `lock.inner.try_write()`, or `lock.inner.try_upgrade` before + /// instantiating this object. + unsafe fn new(lock: &'rwlock RwLock<T>) -> LockResult<RwLockWriteGuard<'rwlock, T>> { + poison::map_result(lock.poison.guard(), |guard| RwLockWriteGuard { lock, poison: guard }) } - /// Makes a [`MappedRwLockReadGuard`] for a component of the borrowed data. - /// The original guard is returned as an `Err(...)` if the closure returns - /// `None`. + /// Downgrades a write-locked `RwLockWriteGuard` into a read-locked [`RwLockReadGuard`]. /// - /// The `RwLock` is already locked for reading, so this cannot fail. + /// Since we have the `RwLockWriteGuard`, the [`RwLock`] must already be locked for writing, so + /// this method cannot fail. /// - /// This is an associated function that needs to be used as - /// `MappedRwLockReadGuard::filter_map(...)`. A method would interfere with - /// methods of the same name on the contents of the `MappedRwLockReadGuard` - /// used through `Deref`. + /// After downgrading, other readers will be allowed to read the protected data. /// - /// # Panics + /// # Examples /// - /// If the closure panics, the guard will be dropped (unlocked) and the RwLock will not be poisoned. - #[unstable(feature = "mapped_lock_guards", issue = "117108")] - pub fn filter_map<U, F>(orig: Self, f: F) -> Result<MappedRwLockReadGuard<'a, U>, Self> - where - F: FnOnce(&T) -> Option<&U>, - U: ?Sized, - { - // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when the original guard - // was created, and have been upheld throughout `map` and/or `filter_map`. - // The signature of the closure guarantees that it will not "leak" the lifetime of the reference - // passed to it. If the closure panics, the guard will be dropped. - match f(unsafe { orig.data.as_ref() }) { - Some(data) => { - let data = NonNull::from(data); - let orig = ManuallyDrop::new(orig); - Ok(MappedRwLockReadGuard { data, inner_lock: &orig.inner_lock }) - } - None => Err(orig), - } + /// `downgrade` takes ownership of the `RwLockWriteGuard` and returns a [`RwLockReadGuard`]. + /// + /// ``` + /// #![feature(rwlock_downgrade)] + /// + /// use std::sync::{RwLock, RwLockWriteGuard}; + /// + /// let rw = RwLock::new(0); + /// + /// let mut write_guard = rw.write().unwrap(); + /// *write_guard = 42; + /// + /// let read_guard = RwLockWriteGuard::downgrade(write_guard); + /// assert_eq!(42, *read_guard); + /// ``` + /// + /// `downgrade` will _atomically_ change the state of the [`RwLock`] from exclusive mode into + /// shared mode. This means that it is impossible for another writing thread to get in between a + /// thread calling `downgrade` and any reads it performs after downgrading. + /// + /// ``` + /// #![feature(rwlock_downgrade)] + /// + /// use std::sync::{Arc, RwLock, RwLockWriteGuard}; + /// + /// let rw = Arc::new(RwLock::new(1)); + /// + /// // Put the lock in write mode. + /// let mut main_write_guard = rw.write().unwrap(); + /// + /// let rw_clone = rw.clone(); + /// let evil_handle = std::thread::spawn(move || { + /// // This will not return until the main thread drops the `main_read_guard`. + /// let mut evil_guard = rw_clone.write().unwrap(); + /// + /// assert_eq!(*evil_guard, 2); + /// *evil_guard = 3; + /// }); + /// + /// *main_write_guard = 2; + /// + /// // Atomically downgrade the write guard into a read guard. + /// let main_read_guard = RwLockWriteGuard::downgrade(main_write_guard); + /// + /// // Since `downgrade` is atomic, the writer thread cannot have changed the protected data. + /// assert_eq!(*main_read_guard, 2, "`downgrade` was not atomic"); + /// # + /// # drop(main_read_guard); + /// # evil_handle.join().unwrap(); + /// # + /// # let final_check = rw.read().unwrap(); + /// # assert_eq!(*final_check, 3); + /// ``` + #[unstable(feature = "rwlock_downgrade", issue = "128203")] + pub fn downgrade(s: Self) -> RwLockReadGuard<'rwlock, T> { + let lock = s.lock; + + // We don't want to call the destructor since that calls `write_unlock`. + forget(s); + + // SAFETY: We take ownership of a write guard, so we must already have the `RwLock` in write + // mode, satisfying the `downgrade` contract. + unsafe { lock.inner.downgrade() }; + + // SAFETY: We have just successfully called `downgrade`, so we fulfill the safety contract. + unsafe { RwLockReadGuard::new(lock).unwrap_or_else(PoisonError::into_inner) } } -} -impl<'a, T: ?Sized> RwLockWriteGuard<'a, T> { /// Makes a [`MappedRwLockWriteGuard`] for a component of the borrowed data, e.g. /// an enum variant. /// @@ -1013,22 +892,22 @@ impl<'a, T: ?Sized> RwLockWriteGuard<'a, T> { /// /// If the closure panics, the guard will be dropped (unlocked) and the RwLock will be poisoned. #[unstable(feature = "mapped_lock_guards", issue = "117108")] - pub fn map<U, F>(orig: Self, f: F) -> MappedRwLockWriteGuard<'a, U> + pub fn map<U, F>(orig: Self, f: F) -> MappedRwLockWriteGuard<'rwlock, U> where F: FnOnce(&mut T) -> &mut U, U: ?Sized, { // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard // was created, and have been upheld throughout `map` and/or `filter_map`. - // The signature of the closure guarantees that it will not "leak" the lifetime of the reference - // passed to it. If the closure panics, the guard will be dropped. + // The signature of the closure guarantees that it will not "leak" the lifetime of the + // reference passed to it. If the closure panics, the guard will be dropped. let data = NonNull::from(f(unsafe { &mut *orig.lock.data.get() })); let orig = ManuallyDrop::new(orig); MappedRwLockWriteGuard { data, inner_lock: &orig.lock.inner, poison_flag: &orig.lock.poison, - poison: orig.poison.clone(), + poison_guard: orig.poison.clone(), _variance: PhantomData, } } @@ -1048,15 +927,15 @@ impl<'a, T: ?Sized> RwLockWriteGuard<'a, T> { /// /// If the closure panics, the guard will be dropped (unlocked) and the RwLock will be poisoned. #[unstable(feature = "mapped_lock_guards", issue = "117108")] - pub fn filter_map<U, F>(orig: Self, f: F) -> Result<MappedRwLockWriteGuard<'a, U>, Self> + pub fn filter_map<U, F>(orig: Self, f: F) -> Result<MappedRwLockWriteGuard<'rwlock, U>, Self> where F: FnOnce(&mut T) -> Option<&mut U>, U: ?Sized, { // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard // was created, and have been upheld throughout `map` and/or `filter_map`. - // The signature of the closure guarantees that it will not "leak" the lifetime of the reference - // passed to it. If the closure panics, the guard will be dropped. + // The signature of the closure guarantees that it will not "leak" the lifetime of the + // reference passed to it. If the closure panics, the guard will be dropped. match f(unsafe { &mut *orig.lock.data.get() }) { Some(data) => { let data = NonNull::from(data); @@ -1065,78 +944,82 @@ impl<'a, T: ?Sized> RwLockWriteGuard<'a, T> { data, inner_lock: &orig.lock.inner, poison_flag: &orig.lock.poison, - poison: orig.poison.clone(), + poison_guard: orig.poison.clone(), _variance: PhantomData, }) } None => Err(orig), } } +} - /// Downgrades a write-locked `RwLockWriteGuard` into a read-locked [`RwLockReadGuard`]. - /// - /// This method will atomically change the state of the [`RwLock`] from exclusive mode into - /// shared mode. This means that it is impossible for a writing thread to get in between a - /// thread calling `downgrade` and the same thread reading whatever it wrote while it had the - /// [`RwLock`] in write mode. - /// - /// Note that since we have the `RwLockWriteGuard`, we know that the [`RwLock`] is already - /// locked for writing, so this method cannot fail. - /// - /// # Example - /// - /// ``` - /// #![feature(rwlock_downgrade)] - /// use std::sync::{Arc, RwLock, RwLockWriteGuard}; - /// - /// // The inner value starts as 0. - /// let rw = Arc::new(RwLock::new(0)); +impl<'rwlock, T: ?Sized> MappedRwLockReadGuard<'rwlock, T> { + /// Makes a [`MappedRwLockReadGuard`] for a component of the borrowed data, + /// e.g. an enum variant. /// - /// // Put the lock in write mode. - /// let mut main_write_guard = rw.write().unwrap(); + /// The `RwLock` is already locked for reading, so this cannot fail. /// - /// let evil = rw.clone(); - /// let handle = std::thread::spawn(move || { - /// // This will not return until the main thread drops the `main_read_guard`. - /// let mut evil_guard = evil.write().unwrap(); + /// This is an associated function that needs to be used as + /// `MappedRwLockReadGuard::map(...)`. A method would interfere with + /// methods of the same name on the contents of the `MappedRwLockReadGuard` + /// used through `Deref`. /// - /// assert_eq!(*evil_guard, 1); - /// *evil_guard = 2; - /// }); + /// # Panics /// - /// // After spawning the writer thread, set the inner value to 1. - /// *main_write_guard = 1; + /// If the closure panics, the guard will be dropped (unlocked) and the RwLock will not be + /// poisoned. + #[unstable(feature = "mapped_lock_guards", issue = "117108")] + pub fn map<U, F>(orig: Self, f: F) -> MappedRwLockReadGuard<'rwlock, U> + where + F: FnOnce(&T) -> &U, + U: ?Sized, + { + // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + // The signature of the closure guarantees that it will not "leak" the lifetime of the + // reference passed to it. If the closure panics, the guard will be dropped. + let data = NonNull::from(f(unsafe { orig.data.as_ref() })); + let orig = ManuallyDrop::new(orig); + MappedRwLockReadGuard { data, inner_lock: &orig.inner_lock } + } + + /// Makes a [`MappedRwLockReadGuard`] for a component of the borrowed data. + /// The original guard is returned as an `Err(...)` if the closure returns + /// `None`. /// - /// // Atomically downgrade the write guard into a read guard. - /// let main_read_guard = RwLockWriteGuard::downgrade(main_write_guard); + /// The `RwLock` is already locked for reading, so this cannot fail. /// - /// // Since `downgrade` is atomic, the writer thread cannot have set the inner value to 2. - /// assert_eq!(*main_read_guard, 1, "`downgrade` was not atomic"); + /// This is an associated function that needs to be used as + /// `MappedRwLockReadGuard::filter_map(...)`. A method would interfere with + /// methods of the same name on the contents of the `MappedRwLockReadGuard` + /// used through `Deref`. /// - /// // Clean up everything now - /// drop(main_read_guard); - /// handle.join().unwrap(); + /// # Panics /// - /// let final_check = rw.read().unwrap(); - /// assert_eq!(*final_check, 2); - /// ``` - #[unstable(feature = "rwlock_downgrade", issue = "128203")] - pub fn downgrade(s: Self) -> RwLockReadGuard<'a, T> { - let lock = s.lock; - - // We don't want to call the destructor since that calls `write_unlock`. - forget(s); - - // SAFETY: We take ownership of a write guard, so we must already have the `RwLock` in write - // mode, satisfying the `downgrade` contract. - unsafe { lock.inner.downgrade() }; - - // SAFETY: We have just successfully called `downgrade`, so we fulfill the safety contract. - unsafe { RwLockReadGuard::new(lock).unwrap_or_else(PoisonError::into_inner) } + /// If the closure panics, the guard will be dropped (unlocked) and the RwLock will not be + /// poisoned. + #[unstable(feature = "mapped_lock_guards", issue = "117108")] + pub fn filter_map<U, F>(orig: Self, f: F) -> Result<MappedRwLockReadGuard<'rwlock, U>, Self> + where + F: FnOnce(&T) -> Option<&U>, + U: ?Sized, + { + // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + // The signature of the closure guarantees that it will not "leak" the lifetime of the + // reference passed to it. If the closure panics, the guard will be dropped. + match f(unsafe { orig.data.as_ref() }) { + Some(data) => { + let data = NonNull::from(data); + let orig = ManuallyDrop::new(orig); + Ok(MappedRwLockReadGuard { data, inner_lock: &orig.inner_lock }) + } + None => Err(orig), + } } } -impl<'a, T: ?Sized> MappedRwLockWriteGuard<'a, T> { +impl<'rwlock, T: ?Sized> MappedRwLockWriteGuard<'rwlock, T> { /// Makes a [`MappedRwLockWriteGuard`] for a component of the borrowed data, /// e.g. an enum variant. /// @@ -1151,22 +1034,22 @@ impl<'a, T: ?Sized> MappedRwLockWriteGuard<'a, T> { /// /// If the closure panics, the guard will be dropped (unlocked) and the RwLock will be poisoned. #[unstable(feature = "mapped_lock_guards", issue = "117108")] - pub fn map<U, F>(mut orig: Self, f: F) -> MappedRwLockWriteGuard<'a, U> + pub fn map<U, F>(mut orig: Self, f: F) -> MappedRwLockWriteGuard<'rwlock, U> where F: FnOnce(&mut T) -> &mut U, U: ?Sized, { // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard // was created, and have been upheld throughout `map` and/or `filter_map`. - // The signature of the closure guarantees that it will not "leak" the lifetime of the reference - // passed to it. If the closure panics, the guard will be dropped. + // The signature of the closure guarantees that it will not "leak" the lifetime of the + // reference passed to it. If the closure panics, the guard will be dropped. let data = NonNull::from(f(unsafe { orig.data.as_mut() })); let orig = ManuallyDrop::new(orig); MappedRwLockWriteGuard { data, inner_lock: orig.inner_lock, poison_flag: orig.poison_flag, - poison: orig.poison.clone(), + poison_guard: orig.poison_guard.clone(), _variance: PhantomData, } } @@ -1186,15 +1069,18 @@ impl<'a, T: ?Sized> MappedRwLockWriteGuard<'a, T> { /// /// If the closure panics, the guard will be dropped (unlocked) and the RwLock will be poisoned. #[unstable(feature = "mapped_lock_guards", issue = "117108")] - pub fn filter_map<U, F>(mut orig: Self, f: F) -> Result<MappedRwLockWriteGuard<'a, U>, Self> + pub fn filter_map<U, F>( + mut orig: Self, + f: F, + ) -> Result<MappedRwLockWriteGuard<'rwlock, U>, Self> where F: FnOnce(&mut T) -> Option<&mut U>, U: ?Sized, { // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard // was created, and have been upheld throughout `map` and/or `filter_map`. - // The signature of the closure guarantees that it will not "leak" the lifetime of the reference - // passed to it. If the closure panics, the guard will be dropped. + // The signature of the closure guarantees that it will not "leak" the lifetime of the + // reference passed to it. If the closure panics, the guard will be dropped. match f(unsafe { orig.data.as_mut() }) { Some(data) => { let data = NonNull::from(data); @@ -1203,7 +1089,7 @@ impl<'a, T: ?Sized> MappedRwLockWriteGuard<'a, T> { data, inner_lock: orig.inner_lock, poison_flag: orig.poison_flag, - poison: orig.poison.clone(), + poison_guard: orig.poison_guard.clone(), _variance: PhantomData, }) } @@ -1211,3 +1097,162 @@ impl<'a, T: ?Sized> MappedRwLockWriteGuard<'a, T> { } } } + +#[stable(feature = "rust1", since = "1.0.0")] +impl<T: ?Sized> Drop for RwLockReadGuard<'_, T> { + fn drop(&mut self) { + // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when created. + unsafe { + self.inner_lock.read_unlock(); + } + } +} + +#[stable(feature = "rust1", since = "1.0.0")] +impl<T: ?Sized> Drop for RwLockWriteGuard<'_, T> { + fn drop(&mut self) { + self.lock.poison.done(&self.poison); + // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when created. + unsafe { + self.lock.inner.write_unlock(); + } + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +impl<T: ?Sized> Drop for MappedRwLockReadGuard<'_, T> { + fn drop(&mut self) { + // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + unsafe { + self.inner_lock.read_unlock(); + } + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +impl<T: ?Sized> Drop for MappedRwLockWriteGuard<'_, T> { + fn drop(&mut self) { + self.poison_flag.done(&self.poison_guard); + // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + unsafe { + self.inner_lock.write_unlock(); + } + } +} + +#[stable(feature = "rust1", since = "1.0.0")] +impl<T: ?Sized> Deref for RwLockReadGuard<'_, T> { + type Target = T; + + fn deref(&self) -> &T { + // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when created. + unsafe { self.data.as_ref() } + } +} + +#[stable(feature = "rust1", since = "1.0.0")] +impl<T: ?Sized> Deref for RwLockWriteGuard<'_, T> { + type Target = T; + + fn deref(&self) -> &T { + // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when created. + unsafe { &*self.lock.data.get() } + } +} + +#[stable(feature = "rust1", since = "1.0.0")] +impl<T: ?Sized> DerefMut for RwLockWriteGuard<'_, T> { + fn deref_mut(&mut self) -> &mut T { + // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when created. + unsafe { &mut *self.lock.data.get() } + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +impl<T: ?Sized> Deref for MappedRwLockReadGuard<'_, T> { + type Target = T; + + fn deref(&self) -> &T { + // SAFETY: the conditions of `RwLockReadGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + unsafe { self.data.as_ref() } + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +impl<T: ?Sized> Deref for MappedRwLockWriteGuard<'_, T> { + type Target = T; + + fn deref(&self) -> &T { + // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + unsafe { self.data.as_ref() } + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +impl<T: ?Sized> DerefMut for MappedRwLockWriteGuard<'_, T> { + fn deref_mut(&mut self) -> &mut T { + // SAFETY: the conditions of `RwLockWriteGuard::new` were satisfied when the original guard + // was created, and have been upheld throughout `map` and/or `filter_map`. + unsafe { self.data.as_mut() } + } +} + +#[stable(feature = "std_debug", since = "1.16.0")] +impl<T: ?Sized + fmt::Debug> fmt::Debug for RwLockReadGuard<'_, T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + (**self).fmt(f) + } +} + +#[stable(feature = "std_guard_impls", since = "1.20.0")] +impl<T: ?Sized + fmt::Display> fmt::Display for RwLockReadGuard<'_, T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + (**self).fmt(f) + } +} + +#[stable(feature = "std_debug", since = "1.16.0")] +impl<T: ?Sized + fmt::Debug> fmt::Debug for RwLockWriteGuard<'_, T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + (**self).fmt(f) + } +} + +#[stable(feature = "std_guard_impls", since = "1.20.0")] +impl<T: ?Sized + fmt::Display> fmt::Display for RwLockWriteGuard<'_, T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + (**self).fmt(f) + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +impl<T: ?Sized + fmt::Debug> fmt::Debug for MappedRwLockReadGuard<'_, T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + (**self).fmt(f) + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +impl<T: ?Sized + fmt::Display> fmt::Display for MappedRwLockReadGuard<'_, T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + (**self).fmt(f) + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +impl<T: ?Sized + fmt::Debug> fmt::Debug for MappedRwLockWriteGuard<'_, T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + (**self).fmt(f) + } +} + +#[unstable(feature = "mapped_lock_guards", issue = "117108")] +impl<T: ?Sized + fmt::Display> fmt::Display for MappedRwLockWriteGuard<'_, T> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + (**self).fmt(f) + } +} diff --git a/library/std/src/sys/fd/unix.rs b/library/std/src/sys/fd/unix.rs index cdca73cdca1..a12f692e754 100644 --- a/library/std/src/sys/fd/unix.rs +++ b/library/std/src/sys/fd/unix.rs @@ -37,10 +37,10 @@ pub struct FileDesc(OwnedFd); // // On Apple targets however, apparently the 64-bit libc is either buggy or // intentionally showing odd behavior by rejecting any read with a size -// larger than or equal to INT_MAX. To handle both of these the read -// size is capped on both platforms. +// larger than INT_MAX. To handle both of these the read size is capped on +// both platforms. const READ_LIMIT: usize = if cfg!(target_vendor = "apple") { - libc::c_int::MAX as usize - 1 + libc::c_int::MAX as usize } else { libc::ssize_t::MAX as usize }; diff --git a/library/std/src/sys/fs/mod.rs b/library/std/src/sys/fs/mod.rs index d9740e15789..dbd782f5018 100644 --- a/library/std/src/sys/fs/mod.rs +++ b/library/std/src/sys/fs/mod.rs @@ -114,6 +114,21 @@ pub fn set_permissions(path: &Path, perm: FilePermissions) -> io::Result<()> { with_native_path(path, &|path| imp::set_perm(path, perm.clone())) } +#[cfg(unix)] +pub fn set_permissions_nofollow(path: &Path, perm: crate::fs::Permissions) -> io::Result<()> { + use crate::fs::OpenOptions; + use crate::os::unix::fs::OpenOptionsExt; + + OpenOptions::new().custom_flags(libc::O_NOFOLLOW).open(path)?.set_permissions(perm) +} + +#[cfg(not(unix))] +pub fn set_permissions_nofollow(_path: &Path, _perm: crate::fs::Permissions) -> io::Result<()> { + crate::unimplemented!( + "`set_permissions_nofollow` is currently only implemented on Unix platforms" + ) +} + pub fn canonicalize(path: &Path) -> io::Result<PathBuf> { with_native_path(path, &imp::canonicalize) } diff --git a/library/std/src/sys/fs/unix.rs b/library/std/src/sys/fs/unix.rs index 1e2fe6b01f7..0d710a4b2a6 100644 --- a/library/std/src/sys/fs/unix.rs +++ b/library/std/src/sys/fs/unix.rs @@ -1264,6 +1264,8 @@ impl File { target_os = "fuchsia", target_os = "linux", target_os = "netbsd", + target_os = "openbsd", + target_os = "cygwin", target_vendor = "apple", ))] pub fn lock(&self) -> io::Result<()> { @@ -1276,6 +1278,8 @@ impl File { target_os = "fuchsia", target_os = "linux", target_os = "netbsd", + target_os = "openbsd", + target_os = "cygwin", target_vendor = "apple", )))] pub fn lock(&self) -> io::Result<()> { @@ -1287,6 +1291,8 @@ impl File { target_os = "fuchsia", target_os = "linux", target_os = "netbsd", + target_os = "openbsd", + target_os = "cygwin", target_vendor = "apple", ))] pub fn lock_shared(&self) -> io::Result<()> { @@ -1299,6 +1305,8 @@ impl File { target_os = "fuchsia", target_os = "linux", target_os = "netbsd", + target_os = "openbsd", + target_os = "cygwin", target_vendor = "apple", )))] pub fn lock_shared(&self) -> io::Result<()> { @@ -1310,6 +1318,8 @@ impl File { target_os = "fuchsia", target_os = "linux", target_os = "netbsd", + target_os = "openbsd", + target_os = "cygwin", target_vendor = "apple", ))] pub fn try_lock(&self) -> Result<(), TryLockError> { @@ -1330,6 +1340,8 @@ impl File { target_os = "fuchsia", target_os = "linux", target_os = "netbsd", + target_os = "openbsd", + target_os = "cygwin", target_vendor = "apple", )))] pub fn try_lock(&self) -> Result<(), TryLockError> { @@ -1344,6 +1356,8 @@ impl File { target_os = "fuchsia", target_os = "linux", target_os = "netbsd", + target_os = "openbsd", + target_os = "cygwin", target_vendor = "apple", ))] pub fn try_lock_shared(&self) -> Result<(), TryLockError> { @@ -1364,6 +1378,8 @@ impl File { target_os = "fuchsia", target_os = "linux", target_os = "netbsd", + target_os = "openbsd", + target_os = "cygwin", target_vendor = "apple", )))] pub fn try_lock_shared(&self) -> Result<(), TryLockError> { @@ -1378,6 +1394,8 @@ impl File { target_os = "fuchsia", target_os = "linux", target_os = "netbsd", + target_os = "openbsd", + target_os = "cygwin", target_vendor = "apple", ))] pub fn unlock(&self) -> io::Result<()> { @@ -1390,6 +1408,8 @@ impl File { target_os = "fuchsia", target_os = "linux", target_os = "netbsd", + target_os = "openbsd", + target_os = "cygwin", target_vendor = "apple", )))] pub fn unlock(&self) -> io::Result<()> { diff --git a/library/std/src/sys/mod.rs b/library/std/src/sys/mod.rs index 8ec0a0e3302..6324c1a232a 100644 --- a/library/std/src/sys/mod.rs +++ b/library/std/src/sys/mod.rs @@ -1,7 +1,7 @@ #![allow(unsafe_op_in_unsafe_fn)] /// The configure builtins provides runtime support compiler-builtin features -/// which require dynamic intialization to work as expected, e.g. aarch64 +/// which require dynamic initialization to work as expected, e.g. aarch64 /// outline-atomics. mod configure_builtins; diff --git a/library/std/src/sys/pal/uefi/time.rs b/library/std/src/sys/pal/uefi/time.rs index b7c71b76ee8..36ce3f7ef96 100644 --- a/library/std/src/sys/pal/uefi/time.rs +++ b/library/std/src/sys/pal/uefi/time.rs @@ -188,7 +188,7 @@ pub(crate) mod system_time_internal { Duration::new(epoch, t.nanosecond) } - /// This algorithm is a modifed version of the one described in the post: + /// This algorithm is a modified version of the one described in the post: /// https://howardhinnant.github.io/date_algorithms.html#clive_from_days /// /// The changes are to use 1900-01-01-00:00:00 with timezone -1440 as anchor instead of UNIX @@ -197,7 +197,7 @@ pub(crate) mod system_time_internal { // Check timzone validity assert!(timezone <= 1440 && timezone >= -1440); - // FIXME(#126043): use checked_sub_signed once stablized + // FIXME(#126043): use checked_sub_signed once stabilized let secs = dur.as_secs().checked_add_signed((-timezone as i64) * SECS_IN_MINUTE as i64).unwrap(); diff --git a/library/std/src/sys/pal/unix/mod.rs b/library/std/src/sys/pal/unix/mod.rs index fede3673eb6..aef7ab55088 100644 --- a/library/std/src/sys/pal/unix/mod.rs +++ b/library/std/src/sys/pal/unix/mod.rs @@ -59,6 +59,30 @@ pub unsafe fn init(argc: isize, argv: *const *const u8, sigpipe: u8) { } unsafe fn sanitize_standard_fds() { + #[allow(dead_code, unused_variables, unused_mut)] + let mut opened_devnull = -1; + #[allow(dead_code, unused_variables, unused_mut)] + let mut open_devnull = || { + #[cfg(not(all(target_os = "linux", target_env = "gnu")))] + use libc::open; + #[cfg(all(target_os = "linux", target_env = "gnu"))] + use libc::open64 as open; + + if opened_devnull != -1 { + if libc::dup(opened_devnull) != -1 { + return; + } + } + opened_devnull = open(c"/dev/null".as_ptr(), libc::O_RDWR, 0); + if opened_devnull == -1 { + // If the stream is closed but we failed to reopen it, abort the + // process. Otherwise we wouldn't preserve the safety of + // operations on the corresponding Rust object Stdin, Stdout, or + // Stderr. + libc::abort(); + } + }; + // fast path with a single syscall for systems with poll() #[cfg(not(any( miri, @@ -74,11 +98,6 @@ pub unsafe fn init(argc: isize, argv: *const *const u8, sigpipe: u8) { target_vendor = "apple", )))] 'poll: { - #[cfg(not(all(target_os = "linux", target_env = "gnu")))] - use libc::open as open64; - #[cfg(all(target_os = "linux", target_env = "gnu"))] - use libc::open64; - use crate::sys::os::errno; let pfds: &mut [_] = &mut [ libc::pollfd { fd: 0, events: 0, revents: 0 }, @@ -106,13 +125,7 @@ pub unsafe fn init(argc: isize, argv: *const *const u8, sigpipe: u8) { if pfd.revents & libc::POLLNVAL == 0 { continue; } - if open64(c"/dev/null".as_ptr(), libc::O_RDWR, 0) == -1 { - // If the stream is closed but we failed to reopen it, abort the - // process. Otherwise we wouldn't preserve the safety of - // operations on the corresponding Rust object Stdin, Stdout, or - // Stderr. - libc::abort(); - } + open_devnull(); } return; } @@ -129,21 +142,10 @@ pub unsafe fn init(argc: isize, argv: *const *const u8, sigpipe: u8) { target_os = "vita", )))] { - #[cfg(not(all(target_os = "linux", target_env = "gnu")))] - use libc::open as open64; - #[cfg(all(target_os = "linux", target_env = "gnu"))] - use libc::open64; - use crate::sys::os::errno; for fd in 0..3 { if libc::fcntl(fd, libc::F_GETFD) == -1 && errno() == libc::EBADF { - if open64(c"/dev/null".as_ptr(), libc::O_RDWR, 0) == -1 { - // If the stream is closed but we failed to reopen it, abort the - // process. Otherwise we wouldn't preserve the safety of - // operations on the corresponding Rust object Stdin, Stdout, or - // Stderr. - libc::abort(); - } + open_devnull(); } } } diff --git a/library/std/src/thread/local.rs b/library/std/src/thread/local.rs index 0ad014ccd3e..797feeb2bbb 100644 --- a/library/std/src/thread/local.rs +++ b/library/std/src/thread/local.rs @@ -8,8 +8,8 @@ use crate::fmt; /// A thread local storage (TLS) key which owns its contents. /// -/// This key uses the fastest possible implementation available to it for the -/// target platform. It is instantiated with the [`thread_local!`] macro and the +/// This key uses the fastest implementation available on the target platform. +/// It is instantiated with the [`thread_local!`] macro and the /// primary method is the [`with`] method, though there are helpers to make /// working with [`Cell`] types easier. /// @@ -24,10 +24,10 @@ use crate::fmt; /// [`with`]) within a thread, and values that implement [`Drop`] get /// destructed when a thread exits. Some platform-specific caveats apply, which /// are explained below. -/// Note that, should the destructor panics, the whole process will be [aborted]. +/// Note that if the destructor panics, the whole process will be [aborted]. /// /// A `LocalKey`'s initializer cannot recursively depend on itself. Using a -/// `LocalKey` in this way may cause panics, aborts or infinite recursion on +/// `LocalKey` in this way may cause panics, aborts, or infinite recursion on /// the first call to `with`. /// /// [aborted]: crate::process::abort diff --git a/library/std/tests/sync/lazy_lock.rs b/library/std/tests/sync/lazy_lock.rs index 6c14b79f2ce..68aeea834b4 100644 --- a/library/std/tests/sync/lazy_lock.rs +++ b/library/std/tests/sync/lazy_lock.rs @@ -34,16 +34,6 @@ fn lazy_default() { } #[test] -#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] -fn lazy_poisoning() { - let x: LazyCell<String> = LazyCell::new(|| panic!("kaboom")); - for _ in 0..2 { - let res = panic::catch_unwind(panic::AssertUnwindSafe(|| x.len())); - assert!(res.is_err()); - } -} - -#[test] #[cfg_attr(any(target_os = "emscripten", target_os = "wasi"), ignore)] // no threads fn sync_lazy_new() { static CALLED: AtomicUsize = AtomicUsize::new(0); @@ -123,16 +113,6 @@ fn static_sync_lazy_via_fn() { assert_eq!(xs(), &vec![1, 2, 3]); } -#[test] -#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] -fn sync_lazy_poisoning() { - let x: LazyLock<String> = LazyLock::new(|| panic!("kaboom")); - for _ in 0..2 { - let res = panic::catch_unwind(|| x.len()); - assert!(res.is_err()); - } -} - // Check that we can infer `T` from closure's type. #[test] fn lazy_type_inference() { @@ -146,17 +126,6 @@ fn is_sync_send() { } #[test] -#[should_panic = "has previously been poisoned"] -fn lazy_force_mut_panic() { - let mut lazy = LazyLock::<String>::new(|| panic!()); - panic::catch_unwind(panic::AssertUnwindSafe(|| { - let _ = LazyLock::force_mut(&mut lazy); - })) - .unwrap_err(); - let _ = &*lazy; -} - -#[test] fn lazy_force_mut() { let s = "abc".to_owned(); let mut lazy = LazyLock::new(move || s); @@ -165,3 +134,56 @@ fn lazy_force_mut() { p.clear(); LazyLock::force_mut(&mut lazy); } + +#[test] +#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] +fn lazy_poisoning() { + let x: LazyCell<String> = LazyCell::new(|| panic!("kaboom")); + for _ in 0..2 { + let res = panic::catch_unwind(panic::AssertUnwindSafe(|| x.len())); + assert!(res.is_err()); + } +} + +/// Verifies that when a `LazyLock` is poisoned, it panics with the correct error message ("LazyLock +/// instance has previously been poisoned") instead of the underlying `Once` error message. +#[test] +#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] +#[should_panic(expected = "LazyLock instance has previously been poisoned")] +fn lazy_lock_deref_panic() { + let lazy: LazyLock<String> = LazyLock::new(|| panic!("initialization failed")); + + // First access will panic during initialization. + let _ = panic::catch_unwind(panic::AssertUnwindSafe(|| { + let _ = &*lazy; + })); + + // Second access should panic with the poisoned message. + let _ = &*lazy; +} + +#[test] +#[should_panic(expected = "LazyLock instance has previously been poisoned")] +fn lazy_lock_deref_mut_panic() { + let mut lazy: LazyLock<String> = LazyLock::new(|| panic!("initialization failed")); + + // First access will panic during initialization. + let _ = panic::catch_unwind(panic::AssertUnwindSafe(|| { + let _ = LazyLock::force_mut(&mut lazy); + })); + + // Second access should panic with the poisoned message. + let _ = &*lazy; +} + +/// Verifies that when the initialization closure panics with a custom message, that message is +/// preserved and not overridden by `LazyLock`. +#[test] +#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] +#[should_panic(expected = "custom panic message from closure")] +fn lazy_lock_preserves_closure_panic_message() { + let lazy: LazyLock<String> = LazyLock::new(|| panic!("custom panic message from closure")); + + // This should panic with the original message from the closure. + let _ = &*lazy; +} diff --git a/library/std/tests/sync/lib.rs b/library/std/tests/sync/lib.rs index 94f1fe96b6a..f874c2ba389 100644 --- a/library/std/tests/sync/lib.rs +++ b/library/std/tests/sync/lib.rs @@ -8,6 +8,7 @@ #![feature(std_internals)] #![feature(sync_nonpoison)] #![feature(nonpoison_mutex)] +#![feature(nonpoison_rwlock)] #![allow(internal_features)] #![feature(macro_metavar_expr_concat)] // For concatenating identifiers in macros. diff --git a/library/std/tests/sync/rwlock.rs b/library/std/tests/sync/rwlock.rs index 1d55a176948..eca15d2a4ad 100644 --- a/library/std/tests/sync/rwlock.rs +++ b/library/std/tests/sync/rwlock.rs @@ -29,239 +29,457 @@ fn test_needs_drop() { assert!(mem::needs_drop::<NonCopyNeedsDrop>()); } -#[derive(Clone, Eq, PartialEq, Debug)] -struct Cloneable(i32); - -#[test] -fn smoke() { - let l = RwLock::new(()); - drop(l.read().unwrap()); - drop(l.write().unwrap()); - drop((l.read().unwrap(), l.read().unwrap())); - drop(l.write().unwrap()); -} +//////////////////////////////////////////////////////////////////////////////////////////////////// +// Non-poison & Poison Tests +//////////////////////////////////////////////////////////////////////////////////////////////////// +use super::nonpoison_and_poison_unwrap_test; + +nonpoison_and_poison_unwrap_test!( + name: smoke, + test_body: { + use locks::RwLock; + + let l = RwLock::new(()); + drop(maybe_unwrap(l.read())); + drop(maybe_unwrap(l.write())); + drop((maybe_unwrap(l.read()), maybe_unwrap(l.read()))); + drop(maybe_unwrap(l.write())); + } +); -#[test] // FIXME: On macOS we use a provenance-incorrect implementation and Miri // catches that issue with a chance of around 1/1000. // See <https://github.com/rust-lang/rust/issues/121950> for details. #[cfg_attr(all(miri, target_os = "macos"), ignore)] -fn frob() { - const N: u32 = 10; - const M: usize = if cfg!(miri) { 100 } else { 1000 }; +nonpoison_and_poison_unwrap_test!( + name: frob, + test_body: { + use locks::RwLock; - let r = Arc::new(RwLock::new(())); + const N: u32 = 10; + const M: usize = if cfg!(miri) { 100 } else { 1000 }; - let (tx, rx) = channel::<()>(); - for _ in 0..N { - let tx = tx.clone(); - let r = r.clone(); - thread::spawn(move || { - let mut rng = crate::common::test_rng(); - for _ in 0..M { - if rng.random_bool(1.0 / (N as f64)) { - drop(r.write().unwrap()); - } else { - drop(r.read().unwrap()); + let r = Arc::new(RwLock::new(())); + + let (tx, rx) = channel::<()>(); + for _ in 0..N { + let tx = tx.clone(); + let r = r.clone(); + thread::spawn(move || { + let mut rng = crate::common::test_rng(); + for _ in 0..M { + if rng.random_bool(1.0 / (N as f64)) { + drop(maybe_unwrap(r.write())); + } else { + drop(maybe_unwrap(r.read())); + } } + drop(tx); + }); + } + drop(tx); + let _ = rx.recv(); + } +); + +nonpoison_and_poison_unwrap_test!( + name: test_rw_arc, + test_body: { + use locks::RwLock; + + let arc = Arc::new(RwLock::new(0)); + let arc2 = arc.clone(); + let (tx, rx) = channel(); + + thread::spawn(move || { + let mut lock = maybe_unwrap(arc2.write()); + for _ in 0..10 { + let tmp = *lock; + *lock = -1; + thread::yield_now(); + *lock = tmp + 1; } - drop(tx); + tx.send(()).unwrap(); }); + + // Readers try to catch the writer in the act + let mut children = Vec::new(); + for _ in 0..5 { + let arc3 = arc.clone(); + children.push(thread::spawn(move || { + let lock = maybe_unwrap(arc3.read()); + assert!(*lock >= 0); + })); + } + + // Wait for children to pass their asserts + for r in children { + assert!(r.join().is_ok()); + } + + // Wait for writer to finish + rx.recv().unwrap(); + let lock = maybe_unwrap(arc.read()); + assert_eq!(*lock, 10); } - drop(tx); - let _ = rx.recv(); -} +); -#[test] #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] -fn test_rw_arc_poison_wr() { - let arc = Arc::new(RwLock::new(1)); - let arc2 = arc.clone(); - let _: Result<(), _> = thread::spawn(move || { - let _lock = arc2.write().unwrap(); - panic!(); - }) - .join(); - assert!(arc.read().is_err()); -} +nonpoison_and_poison_unwrap_test!( + name: test_rw_arc_access_in_unwind, + test_body: { + use locks::RwLock; + + let arc = Arc::new(RwLock::new(1)); + let arc2 = arc.clone(); + let _ = thread::spawn(move || -> () { + struct Unwinder { + i: Arc<RwLock<isize>>, + } + impl Drop for Unwinder { + fn drop(&mut self) { + let mut lock = maybe_unwrap(self.i.write()); + *lock += 1; + } + } + let _u = Unwinder { i: arc2 }; + panic!(); + }) + .join(); + let lock = maybe_unwrap(arc.read()); + assert_eq!(*lock, 2); + } +); + +nonpoison_and_poison_unwrap_test!( + name: test_rwlock_unsized, + test_body: { + use locks::RwLock; + + let rw: &RwLock<[i32]> = &RwLock::new([1, 2, 3]); + { + let b = &mut *maybe_unwrap(rw.write()); + b[0] = 4; + b[2] = 5; + } + let comp: &[i32] = &[4, 2, 5]; + assert_eq!(&*maybe_unwrap(rw.read()), comp); + } +); -#[test] -#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] -fn test_rw_arc_poison_mapped_w_r() { - let arc = Arc::new(RwLock::new(1)); - let arc2 = arc.clone(); - let _: Result<(), _> = thread::spawn(move || { - let lock = arc2.write().unwrap(); - let _lock = RwLockWriteGuard::map(lock, |val| val); - panic!(); - }) - .join(); - assert!(arc.read().is_err()); -} +nonpoison_and_poison_unwrap_test!( + name: test_into_inner, + test_body: { + use locks::RwLock; -#[test] -#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] -fn test_rw_arc_poison_ww() { - let arc = Arc::new(RwLock::new(1)); - assert!(!arc.is_poisoned()); - let arc2 = arc.clone(); - let _: Result<(), _> = thread::spawn(move || { - let _lock = arc2.write().unwrap(); - panic!(); - }) - .join(); - assert!(arc.write().is_err()); - assert!(arc.is_poisoned()); -} + let m = RwLock::new(NonCopy(10)); + assert_eq!(maybe_unwrap(m.into_inner()), NonCopy(10)); + } +); -#[test] -#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] -fn test_rw_arc_poison_mapped_w_w() { - let arc = Arc::new(RwLock::new(1)); - let arc2 = arc.clone(); - let _: Result<(), _> = thread::spawn(move || { - let lock = arc2.write().unwrap(); - let _lock = RwLockWriteGuard::map(lock, |val| val); - panic!(); - }) - .join(); - assert!(arc.write().is_err()); - assert!(arc.is_poisoned()); -} +nonpoison_and_poison_unwrap_test!( + name: test_into_inner_drop, + test_body: { + use locks::RwLock; -#[test] -#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] -fn test_rw_arc_no_poison_rr() { - let arc = Arc::new(RwLock::new(1)); - let arc2 = arc.clone(); - let _: Result<(), _> = thread::spawn(move || { - let _lock = arc2.read().unwrap(); - panic!(); - }) - .join(); - let lock = arc.read().unwrap(); - assert_eq!(*lock, 1); -} + struct Foo(Arc<AtomicUsize>); + impl Drop for Foo { + fn drop(&mut self) { + self.0.fetch_add(1, Ordering::SeqCst); + } + } -#[test] -#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] -fn test_rw_arc_no_poison_mapped_r_r() { - let arc = Arc::new(RwLock::new(1)); - let arc2 = arc.clone(); - let _: Result<(), _> = thread::spawn(move || { - let lock = arc2.read().unwrap(); - let _lock = RwLockReadGuard::map(lock, |val| val); - panic!(); - }) - .join(); - let lock = arc.read().unwrap(); - assert_eq!(*lock, 1); -} + let num_drops = Arc::new(AtomicUsize::new(0)); + let m = RwLock::new(Foo(num_drops.clone())); + assert_eq!(num_drops.load(Ordering::SeqCst), 0); + { + let _inner = maybe_unwrap(m.into_inner()); + assert_eq!(num_drops.load(Ordering::SeqCst), 0); + } + assert_eq!(num_drops.load(Ordering::SeqCst), 1); + } +); -#[test] -#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] -fn test_rw_arc_no_poison_rw() { - let arc = Arc::new(RwLock::new(1)); - let arc2 = arc.clone(); - let _: Result<(), _> = thread::spawn(move || { - let _lock = arc2.read().unwrap(); - panic!() - }) - .join(); - let lock = arc.write().unwrap(); - assert_eq!(*lock, 1); -} +nonpoison_and_poison_unwrap_test!( + name: test_get_cloned, + test_body: { + use locks::RwLock; -#[test] -#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] -fn test_rw_arc_no_poison_mapped_r_w() { - let arc = Arc::new(RwLock::new(1)); - let arc2 = arc.clone(); - let _: Result<(), _> = thread::spawn(move || { - let lock = arc2.read().unwrap(); - let _lock = RwLockReadGuard::map(lock, |val| val); - panic!(); - }) - .join(); - let lock = arc.write().unwrap(); - assert_eq!(*lock, 1); -} + #[derive(Clone, Eq, PartialEq, Debug)] + struct Cloneable(i32); -#[test] -fn test_rw_arc() { - let arc = Arc::new(RwLock::new(0)); - let arc2 = arc.clone(); - let (tx, rx) = channel(); - - thread::spawn(move || { - let mut lock = arc2.write().unwrap(); - for _ in 0..10 { - let tmp = *lock; - *lock = -1; - thread::yield_now(); - *lock = tmp + 1; + let m = RwLock::new(Cloneable(10)); + + assert_eq!(maybe_unwrap(m.get_cloned()), Cloneable(10)); + } +); + +nonpoison_and_poison_unwrap_test!( + name: test_get_mut, + test_body: { + use locks::RwLock; + + let mut m = RwLock::new(NonCopy(10)); + *maybe_unwrap(m.get_mut()) = NonCopy(20); + assert_eq!(maybe_unwrap(m.into_inner()), NonCopy(20)); + } +); + +nonpoison_and_poison_unwrap_test!( + name: test_set, + test_body: { + use locks::RwLock; + + fn inner<T>(mut init: impl FnMut() -> T, mut value: impl FnMut() -> T) + where + T: Debug + Eq, + { + let m = RwLock::new(init()); + + assert_eq!(*maybe_unwrap(m.read()), init()); + maybe_unwrap(m.set(value())); + assert_eq!(*maybe_unwrap(m.read()), value()); + } + + inner(|| NonCopy(10), || NonCopy(20)); + inner(|| NonCopyNeedsDrop(10), || NonCopyNeedsDrop(20)); + } +); + +nonpoison_and_poison_unwrap_test!( + name: test_replace, + test_body: { + use locks::RwLock; + + fn inner<T>(mut init: impl FnMut() -> T, mut value: impl FnMut() -> T) + where + T: Debug + Eq, + { + let m = RwLock::new(init()); + + assert_eq!(*maybe_unwrap(m.read()), init()); + assert_eq!(maybe_unwrap(m.replace(value())), init()); + assert_eq!(*maybe_unwrap(m.read()), value()); } - tx.send(()).unwrap(); - }); - // Readers try to catch the writer in the act - let mut children = Vec::new(); - for _ in 0..5 { - let arc3 = arc.clone(); - children.push(thread::spawn(move || { - let lock = arc3.read().unwrap(); - assert!(*lock >= 0); - })); + inner(|| NonCopy(10), || NonCopy(20)); + inner(|| NonCopyNeedsDrop(10), || NonCopyNeedsDrop(20)); + } +); + +nonpoison_and_poison_unwrap_test!( + name: test_read_guard_covariance, + test_body: { + use locks::{RwLock, RwLockReadGuard}; + + fn do_stuff<'a>(_: RwLockReadGuard<'_, &'a i32>, _: &'a i32) {} + let j: i32 = 5; + let lock = RwLock::new(&j); + { + let i = 6; + do_stuff(maybe_unwrap(lock.read()), &i); + } + drop(lock); } +); + +nonpoison_and_poison_unwrap_test!( + name: test_mapped_read_guard_covariance, + test_body: { + use locks::{RwLock, RwLockReadGuard, MappedRwLockReadGuard}; + + fn do_stuff<'a>(_: MappedRwLockReadGuard<'_, &'a i32>, _: &'a i32) {} + let j: i32 = 5; + let lock = RwLock::new((&j, &j)); + { + let i = 6; + let guard = maybe_unwrap(lock.read()); + let guard = RwLockReadGuard::map(guard, |(val, _val)| val); + do_stuff(guard, &i); + } + drop(lock); + } +); + +nonpoison_and_poison_unwrap_test!( + name: test_downgrade_basic, + test_body: { + use locks::{RwLock, RwLockWriteGuard}; + + let r = RwLock::new(()); - // Wait for children to pass their asserts - for r in children { - assert!(r.join().is_ok()); + let write_guard = maybe_unwrap(r.write()); + let _read_guard = RwLockWriteGuard::downgrade(write_guard); } +); - // Wait for writer to finish - rx.recv().unwrap(); - let lock = arc.read().unwrap(); - assert_eq!(*lock, 10); -} +// FIXME: On macOS we use a provenance-incorrect implementation and Miri catches that issue. +// See <https://github.com/rust-lang/rust/issues/121950> for details. +#[cfg_attr(all(miri, target_os = "macos"), ignore)] +nonpoison_and_poison_unwrap_test!( + name: test_downgrade_observe, + test_body: { + use locks::{RwLock, RwLockWriteGuard}; + + // Inspired by the test `test_rwlock_downgrade` from: + // https://github.com/Amanieu/parking_lot/blob/master/src/rwlock.rs + + const W: usize = 20; + const N: usize = if cfg!(miri) { 40 } else { 100 }; + + // This test spawns `W` writer threads, where each will increment a counter `N` times, + // ensuring that the value they wrote has not changed after downgrading. + + let rw = Arc::new(RwLock::new(0)); + + // Spawn the writers that will do `W * N` operations and checks. + let handles: Vec<_> = (0..W) + .map(|_| { + let rw = rw.clone(); + thread::spawn(move || { + for _ in 0..N { + // Increment the counter. + let mut write_guard = maybe_unwrap(rw.write()); + *write_guard += 1; + let cur_val = *write_guard; + + // Downgrade the lock to read mode, where the value protected cannot be + // modified. + let read_guard = RwLockWriteGuard::downgrade(write_guard); + assert_eq!(cur_val, *read_guard); + } + }) + }) + .collect(); -#[test] -#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] -fn test_rw_arc_access_in_unwind() { - let arc = Arc::new(RwLock::new(1)); - let arc2 = arc.clone(); - let _ = thread::spawn(move || -> () { - struct Unwinder { - i: Arc<RwLock<isize>>, + for handle in handles { + handle.join().unwrap(); } - impl Drop for Unwinder { - fn drop(&mut self) { - let mut lock = self.i.write().unwrap(); - *lock += 1; - } + + assert_eq!(*maybe_unwrap(rw.read()), W * N); + } +); + +// FIXME: On macOS we use a provenance-incorrect implementation and Miri catches that issue. +// See <https://github.com/rust-lang/rust/issues/121950> for details. +#[cfg_attr(all(miri, target_os = "macos"), ignore)] +nonpoison_and_poison_unwrap_test!( + name: test_downgrade_atomic, + test_body: { + use locks::{RwLock, RwLockWriteGuard}; + + const NEW_VALUE: i32 = -1; + + // This test checks that `downgrade` is atomic, meaning as soon as a write lock has been + // downgraded, the lock must be in read mode and no other threads can take the write lock to + // modify the protected value. + + // `W` is the number of evil writer threads. + const W: usize = 20; + let rwlock = Arc::new(RwLock::new(0)); + + // Spawns many evil writer threads that will try and write to the locked value before the + // initial writer (who has the exclusive lock) can read after it downgrades. + // If the `RwLock` behaves correctly, then the initial writer should read the value it wrote + // itself as no other thread should be able to mutate the protected value. + + // Put the lock in write mode, causing all future threads trying to access this go to sleep. + let mut main_write_guard = maybe_unwrap(rwlock.write()); + + // Spawn all of the evil writer threads. They will each increment the protected value by 1. + let handles: Vec<_> = (0..W) + .map(|_| { + let rwlock = rwlock.clone(); + thread::spawn(move || { + // Will go to sleep since the main thread initially has the write lock. + let mut evil_guard = maybe_unwrap(rwlock.write()); + *evil_guard += 1; + }) + }) + .collect(); + + // Wait for a good amount of time so that evil threads go to sleep. + // Note: this is not strictly necessary... + let eternity = std::time::Duration::from_millis(42); + thread::sleep(eternity); + + // Once everyone is asleep, set the value to `NEW_VALUE`. + *main_write_guard = NEW_VALUE; + + // Atomically downgrade the write guard into a read guard. + let main_read_guard = RwLockWriteGuard::downgrade(main_write_guard); + + // If the above is not atomic, then it would be possible for an evil thread to get in front + // of this read and change the value to be non-negative. + assert_eq!(*main_read_guard, NEW_VALUE, "`downgrade` was not atomic"); + + // Drop the main read guard and allow the evil writer threads to start incrementing. + drop(main_read_guard); + + for handle in handles { + handle.join().unwrap(); } - let _u = Unwinder { i: arc2 }; - panic!(); - }) - .join(); - let lock = arc.read().unwrap(); - assert_eq!(*lock, 2); -} + + let final_check = maybe_unwrap(rwlock.read()); + assert_eq!(*final_check, W as i32 + NEW_VALUE); + } +); + +nonpoison_and_poison_unwrap_test!( + name: test_mapping_mapped_guard, + test_body: { + use locks::{ + RwLock, RwLockReadGuard, RwLockWriteGuard, MappedRwLockReadGuard, MappedRwLockWriteGuard + }; + + let arr = [0; 4]; + let mut lock = RwLock::new(arr); + let guard = maybe_unwrap(lock.write()); + let guard = RwLockWriteGuard::map(guard, |arr| &mut arr[..2]); + let mut guard = MappedRwLockWriteGuard::map(guard, |slice| &mut slice[1..]); + assert_eq!(guard.len(), 1); + guard[0] = 42; + drop(guard); + assert_eq!(*maybe_unwrap(lock.get_mut()), [0, 42, 0, 0]); + + let guard = maybe_unwrap(lock.read()); + let guard = RwLockReadGuard::map(guard, |arr| &arr[..2]); + let guard = MappedRwLockReadGuard::map(guard, |slice| &slice[1..]); + assert_eq!(*guard, [42]); + drop(guard); + assert_eq!(*maybe_unwrap(lock.get_mut()), [0, 42, 0, 0]); + } +); #[test] -fn test_rwlock_unsized() { - let rw: &RwLock<[i32]> = &RwLock::new([1, 2, 3]); - { - let b = &mut *rw.write().unwrap(); - b[0] = 4; - b[2] = 5; +fn nonpoison_test_rwlock_try_write() { + use std::sync::nonpoison::{RwLock, RwLockReadGuard, WouldBlock}; + + let lock = RwLock::new(0isize); + let read_guard = lock.read(); + + let write_result = lock.try_write(); + match write_result { + Err(WouldBlock) => (), + Ok(_) => assert!(false, "try_write should not succeed while read_guard is in scope"), + } + + drop(read_guard); + let mapped_read_guard = RwLockReadGuard::map(lock.read(), |_| &()); + + let write_result = lock.try_write(); + match write_result { + Err(WouldBlock) => (), + Ok(_) => assert!(false, "try_write should not succeed while mapped_read_guard is in scope"), } - let comp: &[i32] = &[4, 2, 5]; - assert_eq!(&*rw.read().unwrap(), comp); + + drop(mapped_read_guard); } #[test] -fn test_rwlock_try_write() { +fn poison_test_rwlock_try_write() { + use std::sync::poison::{RwLock, RwLockReadGuard, TryLockError}; + let lock = RwLock::new(0isize); let read_guard = lock.read().unwrap(); @@ -285,6 +503,11 @@ fn test_rwlock_try_write() { drop(mapped_read_guard); } +//////////////////////////////////////////////////////////////////////////////////////////////////// +// Poison Tests +//////////////////////////////////////////////////////////////////////////////////////////////////// + +/// Creates a rwlock that is immediately poisoned. fn new_poisoned_rwlock<T>(value: T) -> RwLock<T> { let lock = RwLock::new(value); @@ -301,30 +524,6 @@ fn new_poisoned_rwlock<T>(value: T) -> RwLock<T> { } #[test] -fn test_into_inner() { - let m = RwLock::new(NonCopy(10)); - assert_eq!(m.into_inner().unwrap(), NonCopy(10)); -} - -#[test] -fn test_into_inner_drop() { - struct Foo(Arc<AtomicUsize>); - impl Drop for Foo { - fn drop(&mut self) { - self.0.fetch_add(1, Ordering::SeqCst); - } - } - let num_drops = Arc::new(AtomicUsize::new(0)); - let m = RwLock::new(Foo(num_drops.clone())); - assert_eq!(num_drops.load(Ordering::SeqCst), 0); - { - let _inner = m.into_inner().unwrap(); - assert_eq!(num_drops.load(Ordering::SeqCst), 0); - } - assert_eq!(num_drops.load(Ordering::SeqCst), 1); -} - -#[test] #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] fn test_into_inner_poison() { let m = new_poisoned_rwlock(NonCopy(10)); @@ -336,15 +535,11 @@ fn test_into_inner_poison() { } #[test] -fn test_get_cloned() { - let m = RwLock::new(Cloneable(10)); - - assert_eq!(m.get_cloned().unwrap(), Cloneable(10)); -} - -#[test] #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] fn test_get_cloned_poison() { + #[derive(Clone, Eq, PartialEq, Debug)] + struct Cloneable(i32); + let m = new_poisoned_rwlock(Cloneable(10)); match m.get_cloned() { @@ -354,13 +549,6 @@ fn test_get_cloned_poison() { } #[test] -fn test_get_mut() { - let mut m = RwLock::new(NonCopy(10)); - *m.get_mut().unwrap() = NonCopy(20); - assert_eq!(m.into_inner().unwrap(), NonCopy(20)); -} - -#[test] #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] fn test_get_mut_poison() { let mut m = new_poisoned_rwlock(NonCopy(10)); @@ -372,23 +560,6 @@ fn test_get_mut_poison() { } #[test] -fn test_set() { - fn inner<T>(mut init: impl FnMut() -> T, mut value: impl FnMut() -> T) - where - T: Debug + Eq, - { - let m = RwLock::new(init()); - - assert_eq!(*m.read().unwrap(), init()); - m.set(value()).unwrap(); - assert_eq!(*m.read().unwrap(), value()); - } - - inner(|| NonCopy(10), || NonCopy(20)); - inner(|| NonCopyNeedsDrop(10), || NonCopyNeedsDrop(20)); -} - -#[test] #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] fn test_set_poison() { fn inner<T>(mut init: impl FnMut() -> T, mut value: impl FnMut() -> T) @@ -411,23 +582,6 @@ fn test_set_poison() { } #[test] -fn test_replace() { - fn inner<T>(mut init: impl FnMut() -> T, mut value: impl FnMut() -> T) - where - T: Debug + Eq, - { - let m = RwLock::new(init()); - - assert_eq!(*m.read().unwrap(), init()); - assert_eq!(m.replace(value()).unwrap(), init()); - assert_eq!(*m.read().unwrap(), value()); - } - - inner(|| NonCopy(10), || NonCopy(20)); - inner(|| NonCopyNeedsDrop(10), || NonCopyNeedsDrop(20)); -} - -#[test] #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] fn test_replace_poison() { fn inner<T>(mut init: impl FnMut() -> T, mut value: impl FnMut() -> T) @@ -450,49 +604,118 @@ fn test_replace_poison() { } #[test] -fn test_read_guard_covariance() { - fn do_stuff<'a>(_: RwLockReadGuard<'_, &'a i32>, _: &'a i32) {} - let j: i32 = 5; - let lock = RwLock::new(&j); - { - let i = 6; - do_stuff(lock.read().unwrap(), &i); - } - drop(lock); +#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] +fn test_rw_arc_poison_wr() { + let arc = Arc::new(RwLock::new(1)); + let arc2 = arc.clone(); + let _: Result<(), _> = thread::spawn(move || { + let _lock = arc2.write().unwrap(); + panic!(); + }) + .join(); + assert!(arc.read().is_err()); } #[test] -fn test_mapped_read_guard_covariance() { - fn do_stuff<'a>(_: MappedRwLockReadGuard<'_, &'a i32>, _: &'a i32) {} - let j: i32 = 5; - let lock = RwLock::new((&j, &j)); - { - let i = 6; - let guard = lock.read().unwrap(); - let guard = RwLockReadGuard::map(guard, |(val, _val)| val); - do_stuff(guard, &i); - } - drop(lock); +#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] +fn test_rw_arc_poison_mapped_w_r() { + let arc = Arc::new(RwLock::new(1)); + let arc2 = arc.clone(); + let _: Result<(), _> = thread::spawn(move || { + let lock = arc2.write().unwrap(); + let _lock = RwLockWriteGuard::map(lock, |val| val); + panic!(); + }) + .join(); + assert!(arc.read().is_err()); } #[test] -fn test_mapping_mapped_guard() { - let arr = [0; 4]; - let mut lock = RwLock::new(arr); - let guard = lock.write().unwrap(); - let guard = RwLockWriteGuard::map(guard, |arr| &mut arr[..2]); - let mut guard = MappedRwLockWriteGuard::map(guard, |slice| &mut slice[1..]); - assert_eq!(guard.len(), 1); - guard[0] = 42; - drop(guard); - assert_eq!(*lock.get_mut().unwrap(), [0, 42, 0, 0]); - - let guard = lock.read().unwrap(); - let guard = RwLockReadGuard::map(guard, |arr| &arr[..2]); - let guard = MappedRwLockReadGuard::map(guard, |slice| &slice[1..]); - assert_eq!(*guard, [42]); - drop(guard); - assert_eq!(*lock.get_mut().unwrap(), [0, 42, 0, 0]); +#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] +fn test_rw_arc_poison_ww() { + let arc = Arc::new(RwLock::new(1)); + assert!(!arc.is_poisoned()); + let arc2 = arc.clone(); + let _: Result<(), _> = thread::spawn(move || { + let _lock = arc2.write().unwrap(); + panic!(); + }) + .join(); + assert!(arc.write().is_err()); + assert!(arc.is_poisoned()); +} + +#[test] +#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] +fn test_rw_arc_poison_mapped_w_w() { + let arc = Arc::new(RwLock::new(1)); + let arc2 = arc.clone(); + let _: Result<(), _> = thread::spawn(move || { + let lock = arc2.write().unwrap(); + let _lock = RwLockWriteGuard::map(lock, |val| val); + panic!(); + }) + .join(); + assert!(arc.write().is_err()); + assert!(arc.is_poisoned()); +} + +#[test] +#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] +fn test_rw_arc_no_poison_rr() { + let arc = Arc::new(RwLock::new(1)); + let arc2 = arc.clone(); + let _: Result<(), _> = thread::spawn(move || { + let _lock = arc2.read().unwrap(); + panic!(); + }) + .join(); + let lock = arc.read().unwrap(); + assert_eq!(*lock, 1); +} + +#[test] +#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] +fn test_rw_arc_no_poison_mapped_r_r() { + let arc = Arc::new(RwLock::new(1)); + let arc2 = arc.clone(); + let _: Result<(), _> = thread::spawn(move || { + let lock = arc2.read().unwrap(); + let _lock = RwLockReadGuard::map(lock, |val| val); + panic!(); + }) + .join(); + let lock = arc.read().unwrap(); + assert_eq!(*lock, 1); +} + +#[test] +#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] +fn test_rw_arc_no_poison_rw() { + let arc = Arc::new(RwLock::new(1)); + let arc2 = arc.clone(); + let _: Result<(), _> = thread::spawn(move || { + let _lock = arc2.read().unwrap(); + panic!() + }) + .join(); + let lock = arc.write().unwrap(); + assert_eq!(*lock, 1); +} + +#[test] +#[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")] +fn test_rw_arc_no_poison_mapped_r_w() { + let arc = Arc::new(RwLock::new(1)); + let arc2 = arc.clone(); + let _: Result<(), _> = thread::spawn(move || { + let lock = arc2.read().unwrap(); + let _lock = RwLockReadGuard::map(lock, |val| val); + panic!(); + }) + .join(); + let lock = arc.write().unwrap(); + assert_eq!(*lock, 1); } #[test] @@ -638,114 +861,3 @@ fn panic_while_mapping_write_unlocked_poison() { drop(lock); } - -#[test] -fn test_downgrade_basic() { - let r = RwLock::new(()); - - let write_guard = r.write().unwrap(); - let _read_guard = RwLockWriteGuard::downgrade(write_guard); -} - -#[test] -// FIXME: On macOS we use a provenance-incorrect implementation and Miri catches that issue. -// See <https://github.com/rust-lang/rust/issues/121950> for details. -#[cfg_attr(all(miri, target_os = "macos"), ignore)] -fn test_downgrade_observe() { - // Taken from the test `test_rwlock_downgrade` from: - // https://github.com/Amanieu/parking_lot/blob/master/src/rwlock.rs - - const W: usize = 20; - const N: usize = if cfg!(miri) { 40 } else { 100 }; - - // This test spawns `W` writer threads, where each will increment a counter `N` times, ensuring - // that the value they wrote has not changed after downgrading. - - let rw = Arc::new(RwLock::new(0)); - - // Spawn the writers that will do `W * N` operations and checks. - let handles: Vec<_> = (0..W) - .map(|_| { - let rw = rw.clone(); - thread::spawn(move || { - for _ in 0..N { - // Increment the counter. - let mut write_guard = rw.write().unwrap(); - *write_guard += 1; - let cur_val = *write_guard; - - // Downgrade the lock to read mode, where the value protected cannot be modified. - let read_guard = RwLockWriteGuard::downgrade(write_guard); - assert_eq!(cur_val, *read_guard); - } - }) - }) - .collect(); - - for handle in handles { - handle.join().unwrap(); - } - - assert_eq!(*rw.read().unwrap(), W * N); -} - -#[test] -// FIXME: On macOS we use a provenance-incorrect implementation and Miri catches that issue. -// See <https://github.com/rust-lang/rust/issues/121950> for details. -#[cfg_attr(all(miri, target_os = "macos"), ignore)] -fn test_downgrade_atomic() { - const NEW_VALUE: i32 = -1; - - // This test checks that `downgrade` is atomic, meaning as soon as a write lock has been - // downgraded, the lock must be in read mode and no other threads can take the write lock to - // modify the protected value. - - // `W` is the number of evil writer threads. - const W: usize = 20; - let rwlock = Arc::new(RwLock::new(0)); - - // Spawns many evil writer threads that will try and write to the locked value before the - // initial writer (who has the exclusive lock) can read after it downgrades. - // If the `RwLock` behaves correctly, then the initial writer should read the value it wrote - // itself as no other thread should be able to mutate the protected value. - - // Put the lock in write mode, causing all future threads trying to access this go to sleep. - let mut main_write_guard = rwlock.write().unwrap(); - - // Spawn all of the evil writer threads. They will each increment the protected value by 1. - let handles: Vec<_> = (0..W) - .map(|_| { - let rwlock = rwlock.clone(); - thread::spawn(move || { - // Will go to sleep since the main thread initially has the write lock. - let mut evil_guard = rwlock.write().unwrap(); - *evil_guard += 1; - }) - }) - .collect(); - - // Wait for a good amount of time so that evil threads go to sleep. - // Note: this is not strictly necessary... - let eternity = std::time::Duration::from_millis(42); - thread::sleep(eternity); - - // Once everyone is asleep, set the value to `NEW_VALUE`. - *main_write_guard = NEW_VALUE; - - // Atomically downgrade the write guard into a read guard. - let main_read_guard = RwLockWriteGuard::downgrade(main_write_guard); - - // If the above is not atomic, then it would be possible for an evil thread to get in front of - // this read and change the value to be non-negative. - assert_eq!(*main_read_guard, NEW_VALUE, "`downgrade` was not atomic"); - - // Drop the main read guard and allow the evil writer threads to start incrementing. - drop(main_read_guard); - - for handle in handles { - handle.join().unwrap(); - } - - let final_check = rwlock.read().unwrap(); - assert_eq!(*final_check, W as i32 + NEW_VALUE); -} diff --git a/library/std_detect/Cargo.toml b/library/std_detect/Cargo.toml index 33e6617c381..2739bb59230 100644 --- a/library/std_detect/Cargo.toml +++ b/library/std_detect/Cargo.toml @@ -21,8 +21,8 @@ is-it-maintained-open-issues = { repository = "rust-lang/stdarch" } maintenance = { status = "experimental" } [dependencies] -core = { path = "../core" } -alloc = { path = "../alloc" } +core = { version = "1.0.0", package = 'rustc-std-workspace-core' } +alloc = { version = "1.0.0", package = 'rustc-std-workspace-alloc' } [target.'cfg(not(windows))'.dependencies] libc = { version = "0.2.0", optional = true, default-features = false } diff --git a/library/std_detect/src/detect/arch/loongarch.rs b/library/std_detect/src/detect/arch/loongarch.rs index 68fc600fa8e..d5a442fbbb8 100644 --- a/library/std_detect/src/detect/arch/loongarch.rs +++ b/library/std_detect/src/detect/arch/loongarch.rs @@ -8,6 +8,7 @@ features! { /// Checks if `loongarch` feature is enabled. /// Supported arguments are: /// + /// * `"32s"` /// * `"f"` /// * `"d"` /// * `"frecipe"` @@ -22,6 +23,8 @@ features! { /// * `"lvz"` /// * `"ual"` #[stable(feature = "stdarch_loongarch_feature", since = "1.89.0")] + @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] _32s: "32s"; + /// 32S @FEATURE: #[stable(feature = "stdarch_loongarch_feature", since = "1.89.0")] f: "f"; /// F @FEATURE: #[stable(feature = "stdarch_loongarch_feature", since = "1.89.0")] d: "d"; diff --git a/library/std_detect/src/detect/arch/riscv.rs b/library/std_detect/src/detect/arch/riscv.rs index 1d21b1d4855..1e57d09edb1 100644 --- a/library/std_detect/src/detect/arch/riscv.rs +++ b/library/std_detect/src/detect/arch/riscv.rs @@ -37,90 +37,121 @@ features! { /// /// # Unprivileged Specification /// - /// The supported ratified RISC-V instruction sets are as follows: + /// The supported ratified RISC-V instruction sets are as follows (OS + /// columns denote runtime feature detection support with or without the + /// minimum supported version): /// - /// * RV32E: `"rv32e"` - /// * RV32I: `"rv32i"` - /// * RV64I: `"rv64i"` - /// * A: `"a"` - /// * Zaamo: `"zaamo"` - /// * Zalrsc: `"zalrsc"` - /// * B: `"b"` - /// * Zba: `"zba"` - /// * Zbb: `"zbb"` - /// * Zbs: `"zbs"` - /// * C: `"c"` - /// * Zca: `"zca"` - /// * Zcd: `"zcd"` (if D is enabled) - /// * Zcf: `"zcf"` (if F is enabled on RV32) - /// * D: `"d"` - /// * F: `"f"` - /// * M: `"m"` - /// * Q: `"q"` - /// * V: `"v"` - /// * Zve32x: `"zve32x"` - /// * Zve32f: `"zve32f"` - /// * Zve64x: `"zve64x"` - /// * Zve64f: `"zve64f"` - /// * Zve64d: `"zve64d"` - /// * Zicbom: `"zicbom"` - /// * Zicboz: `"zicboz"` - /// * Zicntr: `"zicntr"` - /// * Zicond: `"zicond"` - /// * Zicsr: `"zicsr"` - /// * Zifencei: `"zifencei"` - /// * Zihintntl: `"zihintntl"` - /// * Zihintpause: `"zihintpause"` - /// * Zihpm: `"zihpm"` - /// * Zimop: `"zimop"` - /// * Zabha: `"zabha"` - /// * Zacas: `"zacas"` - /// * Zawrs: `"zawrs"` - /// * Zfa: `"zfa"` - /// * Zfbfmin: `"zfbfmin"` - /// * Zfh: `"zfh"` - /// * Zfhmin: `"zfhmin"` - /// * Zfinx: `"zfinx"` - /// * Zdinx: `"zdinx"` - /// * Zhinx: `"zhinx"` - /// * Zhinxmin: `"zhinxmin"` - /// * Zcb: `"zcb"` - /// * Zcmop: `"zcmop"` - /// * Zbc: `"zbc"` - /// * Zbkb: `"zbkb"` - /// * Zbkc: `"zbkc"` - /// * Zbkx: `"zbkx"` - /// * Zk: `"zk"` - /// * Zkn: `"zkn"` - /// * Zknd: `"zknd"` - /// * Zkne: `"zkne"` - /// * Zknh: `"zknh"` - /// * Zkr: `"zkr"` - /// * Zks: `"zks"` - /// * Zksed: `"zksed"` - /// * Zksh: `"zksh"` - /// * Zkt: `"zkt"` - /// * Zvbb: `"zvbb"` - /// * Zvbc: `"zvbc"` - /// * Zvfbfmin: `"zvfbfmin"` - /// * Zvfbfwma: `"zvfbfwma"` - /// * Zvfh: `"zvfh"` - /// * Zvfhmin: `"zvfhmin"` - /// * Zvkb: `"zvkb"` - /// * Zvkg: `"zvkg"` - /// * Zvkn: `"zvkn"` - /// * Zvkned: `"zvkned"` - /// * Zvknha: `"zvknha"` - /// * Zvknhb: `"zvknhb"` - /// * Zvknc: `"zvknc"` - /// * Zvkng: `"zvkng"` - /// * Zvks: `"zvks"` - /// * Zvksed: `"zvksed"` - /// * Zvksh: `"zvksh"` - /// * Zvksc: `"zvksc"` - /// * Zvksg: `"zvksg"` - /// * Zvkt: `"zvkt"` - /// * Ztso: `"ztso"` + /// | Literal | Base | Linux | + /// |:---------- |:------- |:---------- | + /// | `"rv32e"` | RV32E | No | + /// | `"rv32i"` | RV32I | Yes [^ima] | + /// | `"rv64i"` | RV64I | Yes [^ima] | + /// + /// | Literal | Extension | Linux | + /// |:--------------- |:----------- |:------------------- | + /// | `"a"` | A | Yes [^ima] | + /// | `"b"` | B | 6.5 | + /// | `"c"` | C | Yes | + /// | `"d"` | D | Yes | + /// | `"f"` | F | Yes | + /// | `"m"` | M | Yes [^ima] | + /// | `"q"` | Q | No | + /// | `"v"` | V | 6.5 | + /// | `"zaamo"` | Zaamo | 6.15 [^ima] [^dep] | + /// | `"zabha"` | Zabha | 6.16 | + /// | `"zacas"` | Zacas | 6.8 | + /// | `"zalrsc"` | Zalrsc | 6.15 [^ima] [^dep] | + /// | `"zawrs"` | Zawrs | 6.11 | + /// | `"zba"` | Zba | 6.5 | + /// | `"zbb"` | Zbb | 6.5 | + /// | `"zbc"` | Zbc | 6.8 | + /// | `"zbkb"` | Zbkb | 6.8 | + /// | `"zbkc"` | Zbkc | 6.8 | + /// | `"zbkx"` | Zbkx | 6.8 | + /// | `"zbs"` | Zbs | 6.5 | + /// | `"zca"` | Zca | 6.11 [^dep] | + /// | `"zcb"` | Zcb | 6.11 | + /// | `"zcd"` | Zcd | 6.11 [^dep] | + /// | `"zcf"` | Zcf | 6.11 [^dep] | + /// | `"zcmop"` | Zcmop | 6.11 | + /// | `"zdinx"` | Zdinx | No | + /// | `"zfa"` | Zfa | 6.8 | + /// | `"zfbfmin"` | Zfbfmin | 6.15 | + /// | `"zfh"` | Zfh | 6.8 | + /// | `"zfhmin"` | Zfhmin | 6.8 | + /// | `"zfinx"` | Zfinx | No | + /// | `"zhinx"` | Zhinx | No | + /// | `"zhinxmin"` | Zhinxmin | No | + /// | `"zicbom"` | Zicbom | 6.15 | + /// | `"zicboz"` | Zicboz | 6.7 | + /// | `"zicntr"` | Zicntr | 6.15 [^ima] [^cntr] | + /// | `"zicond"` | Zicond | 6.8 | + /// | `"zicsr"` | Zicsr | No [^ima] [^dep] | + /// | `"zifencei"` | Zifencei | No [^ima] | + /// | `"zihintntl"` | Zihintntl | 6.8 | + /// | `"zihintpause"` | Zihintpause | 6.10 | + /// | `"zihpm"` | Zihpm | 6.15 [^cntr] | + /// | `"zimop"` | Zimop | 6.11 | + /// | `"zk"` | Zk | No [^zkr] | + /// | `"zkn"` | Zkn | 6.8 | + /// | `"zknd"` | Zknd | 6.8 | + /// | `"zkne"` | Zkne | 6.8 | + /// | `"zknh"` | Zknh | 6.8 | + /// | `"zkr"` | Zkr | No [^zkr] | + /// | `"zks"` | Zks | 6.8 | + /// | `"zksed"` | Zksed | 6.8 | + /// | `"zksh"` | Zksh | 6.8 | + /// | `"zkt"` | Zkt | 6.8 | + /// | `"ztso"` | Ztso | 6.8 | + /// | `"zvbb"` | Zvbb | 6.8 | + /// | `"zvbc"` | Zvbc | 6.8 | + /// | `"zve32f"` | Zve32f | 6.11 [^dep] | + /// | `"zve32x"` | Zve32x | 6.11 [^dep] | + /// | `"zve64d"` | Zve64d | 6.11 [^dep] | + /// | `"zve64f"` | Zve64f | 6.11 [^dep] | + /// | `"zve64x"` | Zve64x | 6.11 [^dep] | + /// | `"zvfbfmin"` | Zvfbfmin | 6.15 | + /// | `"zvfbfwma"` | Zvfbfwma | 6.15 | + /// | `"zvfh"` | Zvfh | 6.8 | + /// | `"zvfhmin"` | Zvfhmin | 6.8 | + /// | `"zvkb"` | Zvkb | 6.8 | + /// | `"zvkg"` | Zvkg | 6.8 | + /// | `"zvkn"` | Zvkn | 6.8 | + /// | `"zvknc"` | Zvknc | 6.8 | + /// | `"zvkned"` | Zvkned | 6.8 | + /// | `"zvkng"` | Zvkng | 6.8 | + /// | `"zvknha"` | Zvknha | 6.8 | + /// | `"zvknhb"` | Zvknhb | 6.8 | + /// | `"zvks"` | Zvks | 6.8 | + /// | `"zvksc"` | Zvksc | 6.8 | + /// | `"zvksed"` | Zvksed | 6.8 | + /// | `"zvksg"` | Zvksg | 6.8 | + /// | `"zvksh"` | Zvksh | 6.8 | + /// | `"zvkt"` | Zvkt | 6.8 | + /// + /// [^ima]: Or enabled when the IMA base behavior is detected on the Linux + /// kernel version 6.4 or later (for bases, the only matching one -- either + /// `"rv32i"` or `"rv64i"` -- is enabled). + /// + /// [^cntr]: Even if this extension is available, it does not necessarily + /// mean all performance counters are accessible. + /// For example, accesses to all performance counters except `time` + /// (wall-clock) are blocked by default on the Linux kernel + /// version 6.6 or later. + /// Also beware that, even if performance counters like `cycle` and + /// `instret` are accessible, their value can be unreliable (e.g. returning + /// the constant value) under certain circumstances. + /// + /// [^dep]: Or enabled as a dependency of another extension (a superset) + /// even if runtime detection of this feature itself is not supported (as + /// long as the runtime detection of the superset is supported). + /// + /// [^zkr]: Linux does not report existence of this extension even if + /// supported by the hardware mainly because the `seed` CSR on the Zkr + /// extension (which provides hardware-based randomness) is normally + /// inaccessible from the user mode. + /// For the Zk extension features except this CSR, check existence of both + /// `"zkn"` and `"zkt"` features instead. /// /// There's also bases and extensions marked as standard instruction set, /// but they are in frozen or draft state. These instruction sets are also diff --git a/library/std_detect/src/detect/arch/x86.rs b/library/std_detect/src/detect/arch/x86.rs index 28b3e3cfb35..bd749b88f56 100644 --- a/library/std_detect/src/detect/arch/x86.rs +++ b/library/std_detect/src/detect/arch/x86.rs @@ -233,6 +233,12 @@ features! { /// AMX-TF32 (TensorFloat32 Operations) @FEATURE: #[unstable(feature = "x86_amx_intrinsics", issue = "126622")] amx_transpose: "amx-transpose"; /// AMX-TRANSPOSE (Matrix Transpose Operations) + @FEATURE: #[unstable(feature = "apx_target_feature", issue = "139284")] apxf: "apxf"; + /// APX-F (Advanced Performance Extensions - Foundation) + @FEATURE: #[unstable(feature = "avx10_target_feature", issue = "138843")] avx10_1: "avx10.1"; + /// AVX10.1 + @FEATURE: #[unstable(feature = "avx10_target_feature", issue = "138843")] avx10_2: "avx10.2"; + /// AVX10.2 @FEATURE: #[stable(feature = "simd_x86", since = "1.27.0")] f16c: "f16c"; /// F16C (Conversions between IEEE-754 `binary16` and `binary32` formats) @FEATURE: #[stable(feature = "simd_x86", since = "1.27.0")] fma: "fma"; diff --git a/library/std_detect/src/detect/os/linux/loongarch.rs b/library/std_detect/src/detect/os/linux/loongarch.rs index e97fda11d08..74415266f8b 100644 --- a/library/std_detect/src/detect/os/linux/loongarch.rs +++ b/library/std_detect/src/detect/os/linux/loongarch.rs @@ -17,22 +17,21 @@ pub(crate) fn detect_features() -> cache::Initializer { // The values are part of the platform-specific [cpucfg] // // [cpucfg]: LoongArch Reference Manual Volume 1: Basic Architecture v1.1 + let cpucfg1: usize; let cpucfg2: usize; - unsafe { - asm!( - "cpucfg {}, {}", - out(reg) cpucfg2, in(reg) 2, - options(pure, nomem, preserves_flags, nostack) - ); - } let cpucfg3: usize; unsafe { asm!( "cpucfg {}, {}", + "cpucfg {}, {}", + "cpucfg {}, {}", + out(reg) cpucfg1, in(reg) 1, + out(reg) cpucfg2, in(reg) 2, out(reg) cpucfg3, in(reg) 3, options(pure, nomem, preserves_flags, nostack) ); } + enable_feature(&mut value, Feature::_32s, bit::test(cpucfg1, 0) || bit::test(cpucfg1, 1)); enable_feature(&mut value, Feature::frecipe, bit::test(cpucfg2, 25)); enable_feature(&mut value, Feature::div32, bit::test(cpucfg2, 26)); enable_feature(&mut value, Feature::lam_bh, bit::test(cpucfg2, 27)); diff --git a/library/std_detect/src/detect/os/riscv.rs b/library/std_detect/src/detect/os/riscv.rs index c6acbd3525b..9b9e0cba09d 100644 --- a/library/std_detect/src/detect/os/riscv.rs +++ b/library/std_detect/src/detect/os/riscv.rs @@ -119,11 +119,31 @@ pub(crate) fn imply_features(mut value: cache::Initializer) -> cache::Initialize imply!(d | zfhmin | zfa => f); imply!(zfbfmin => f); // and some of (not all) "Zfh" instructions. - // Relatively complex implication rules from the "C" extension. + // Relatively complex implication rules around the "C" extension. + // (from "C" and some others) imply!(c => zca); imply!(c & d => zcd); #[cfg(target_arch = "riscv32")] imply!(c & f => zcf); + // (to "C"; defined as superset) + cfg_select! { + target_arch = "riscv32" => { + if value.test(Feature::d as u32) { + imply!(zcf & zcd => c); + } else if value.test(Feature::f as u32) { + imply!(zcf => c); + } else { + imply!(zca => c); + } + } + _ => { + if value.test(Feature::d as u32) { + imply!(zcd => c); + } else { + imply!(zca => c); + } + } + } imply!(zicntr | zihpm | f | zfinx | zve32x => zicsr); diff --git a/library/std_detect/src/detect/os/x86.rs b/library/std_detect/src/detect/os/x86.rs index 20f848ab05c..cf11d833312 100644 --- a/library/std_detect/src/detect/os/x86.rs +++ b/library/std_detect/src/detect/os/x86.rs @@ -137,6 +137,32 @@ pub(crate) fn detect_features() -> cache::Initializer { enable(ebx, 2, Feature::widekl); } + // This detects ABM on AMD CPUs and LZCNT on Intel CPUs. + // On intel CPUs with popcnt, lzcnt implements the + // "missing part" of ABM, so we map both to the same + // internal feature. + // + // The `is_x86_feature_detected!("lzcnt")` macro then + // internally maps to Feature::abm. + enable(extended_proc_info_ecx, 5, Feature::lzcnt); + + // As Hygon Dhyana originates from AMD technology and shares most of the architecture with + // AMD's family 17h, but with different CPU Vendor ID("HygonGenuine")/Family series + // number(Family 18h). + // + // For CPUID feature bits, Hygon Dhyana(family 18h) share the same definition with AMD + // family 17h. + // + // Related AMD CPUID specification is https://www.amd.com/system/files/TechDocs/25481.pdf. + // Related Hygon kernel patch can be found on + // http://lkml.kernel.org/r/5ce86123a7b9dad925ac583d88d2f921040e859b.1538583282.git.puwen@hygon.cn + if vendor_id == *b"AuthenticAMD" || vendor_id == *b"HygonGenuine" { + // These features are available on AMD arch CPUs: + enable(extended_proc_info_ecx, 6, Feature::sse4a); + enable(extended_proc_info_ecx, 21, Feature::tbm); + enable(extended_proc_info_ecx, 11, Feature::xop); + } + // `XSAVE` and `AVX` support: let cpu_xsave = bit::test(proc_info_ecx as usize, 26); if cpu_xsave { @@ -161,6 +187,7 @@ pub(crate) fn detect_features() -> cache::Initializer { // * AVX -> `XCR0.AVX[2]` // * AVX-512 -> `XCR0.AVX-512[7:5]`. // * AMX -> `XCR0.AMX[18:17]` + // * APX -> `XCR0.APX[19]` // // by setting the corresponding bits of `XCR0` to `1`. // @@ -173,6 +200,8 @@ pub(crate) fn detect_features() -> cache::Initializer { let os_avx512_support = xcr0 & 0xe0 == 0xe0; // Test `XCR0.AMX[18:17]` with the mask `0b110_0000_0000_0000_0000 == 0x60000` let os_amx_support = xcr0 & 0x60000 == 0x60000; + // Test `XCR0.APX[19]` with the mask `0b1000_0000_0000_0000_0000 == 0x80000` + let os_apx_support = xcr0 & 0x80000 == 0x80000; // Only if the OS and the CPU support saving/restoring the AVX // registers we enable `xsave` support: @@ -262,33 +291,20 @@ pub(crate) fn detect_features() -> cache::Initializer { enable(amx_feature_flags_eax, 8, Feature::amx_movrs); } } - } - } - // This detects ABM on AMD CPUs and LZCNT on Intel CPUs. - // On intel CPUs with popcnt, lzcnt implements the - // "missing part" of ABM, so we map both to the same - // internal feature. - // - // The `is_x86_feature_detected!("lzcnt")` macro then - // internally maps to Feature::abm. - enable(extended_proc_info_ecx, 5, Feature::lzcnt); + if os_apx_support { + enable(extended_features_edx_leaf_1, 21, Feature::apxf); + } - // As Hygon Dhyana originates from AMD technology and shares most of the architecture with - // AMD's family 17h, but with different CPU Vendor ID("HygonGenuine")/Family series - // number(Family 18h). - // - // For CPUID feature bits, Hygon Dhyana(family 18h) share the same definition with AMD - // family 17h. - // - // Related AMD CPUID specification is https://www.amd.com/system/files/TechDocs/25481.pdf. - // Related Hygon kernel patch can be found on - // http://lkml.kernel.org/r/5ce86123a7b9dad925ac583d88d2f921040e859b.1538583282.git.puwen@hygon.cn - if vendor_id == *b"AuthenticAMD" || vendor_id == *b"HygonGenuine" { - // These features are available on AMD arch CPUs: - enable(extended_proc_info_ecx, 6, Feature::sse4a); - enable(extended_proc_info_ecx, 21, Feature::tbm); - enable(extended_proc_info_ecx, 11, Feature::xop); + let avx10_1 = enable(extended_features_edx_leaf_1, 19, Feature::avx10_1); + if avx10_1 { + let CpuidResult { ebx, .. } = unsafe { __cpuid(0x24) }; + let avx10_version = ebx & 0xff; + if avx10_version >= 2 { + value.set(Feature::avx10_2 as u32); + } + } + } } } diff --git a/library/std_detect/tests/macro_trailing_commas.rs b/library/std_detect/tests/macro_trailing_commas.rs index 2fee0abdd57..6072ddf5ac4 100644 --- a/library/std_detect/tests/macro_trailing_commas.rs +++ b/library/std_detect/tests/macro_trailing_commas.rs @@ -69,6 +69,8 @@ fn aarch64() { #[test] #[cfg(any(target_arch = "loongarch32", target_arch = "loongarch64"))] fn loongarch() { + let _ = is_loongarch_feature_detected!("32s"); + let _ = is_loongarch_feature_detected!("32s",); let _ = is_loongarch_feature_detected!("lsx"); let _ = is_loongarch_feature_detected!("lsx",); } diff --git a/src/bootstrap/bootstrap.py b/src/bootstrap/bootstrap.py index 40e08361a0f..2ece53eb0cc 100644 --- a/src/bootstrap/bootstrap.py +++ b/src/bootstrap/bootstrap.py @@ -312,6 +312,12 @@ def default_build_triple(verbose): kernel, cputype, processor = uname.decode(default_encoding).split(maxsplit=2) + # ON NetBSD, use `uname -p` to set the CPU type + if kernel == "NetBSD": + cputype = ( + subprocess.check_output(["uname", "-p"]).strip().decode(default_encoding) + ) + # The goal here is to come up with the same triple as LLVM would, # at least for the subset of platforms we're willing to target. kerneltype_mapper = { @@ -433,10 +439,16 @@ def default_build_triple(verbose): kernel = "linux-androideabi" else: kernel += "eabihf" - elif cputype in {"armv7l", "armv8l"}: + elif cputype in {"armv6hf", "earmv6hf"}: + cputype = "armv6" + if kernel == "unknown-netbsd": + kernel += "-eabihf" + elif cputype in {"armv7l", "earmv7hf", "armv8l"}: cputype = "armv7" if kernel == "linux-android": kernel = "linux-androideabi" + elif kernel == "unknown-netbsd": + kernel += "-eabihf" else: kernel += "eabihf" elif cputype == "mips": diff --git a/src/bootstrap/src/core/build_steps/compile.rs b/src/bootstrap/src/core/build_steps/compile.rs index 74a8cea1ebe..f7a2dc14218 100644 --- a/src/bootstrap/src/core/build_steps/compile.rs +++ b/src/bootstrap/src/core/build_steps/compile.rs @@ -12,6 +12,7 @@ use std::ffi::OsStr; use std::io::BufReader; use std::io::prelude::*; use std::path::{Path, PathBuf}; +use std::time::SystemTime; use std::{env, fs, str}; use serde_derive::Deserialize; @@ -25,7 +26,9 @@ use crate::core::builder; use crate::core::builder::{ Builder, Cargo, Kind, RunConfig, ShouldRun, Step, StepMetadata, crate_description, }; -use crate::core::config::{DebuginfoLevel, LlvmLibunwind, RustcLto, TargetSelection}; +use crate::core::config::{ + CompilerBuiltins, DebuginfoLevel, LlvmLibunwind, RustcLto, TargetSelection, +}; use crate::utils::build_stamp; use crate::utils::build_stamp::BuildStamp; use crate::utils::exec::command; @@ -38,7 +41,7 @@ use crate::{ }; /// Build a standard library for the given `target` using the given `build_compiler`. -#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)] +#[derive(Debug, Clone, PartialEq, Eq, Hash)] pub struct Std { pub target: TargetSelection, /// Compiler that builds the standard library. @@ -95,10 +98,36 @@ impl Std { } deps } + + /// Returns true if the standard library will be uplifted from stage 1 for the given + /// `build_compiler` (which determines the stdlib stage) and `target`. + /// + /// Uplifting is enabled if we're building a stage2+ libstd, full bootstrap is + /// disabled and we have a stage1 libstd already compiled for the given target. + pub fn should_be_uplifted_from_stage_1( + builder: &Builder<'_>, + stage: u32, + target: TargetSelection, + ) -> bool { + stage > 1 + && !builder.config.full_bootstrap + // This estimates if a stage1 libstd exists for the given target. If we're not + // cross-compiling, it should definitely exist by the time we're building a stage2 + // libstd. + // Or if we are cross-compiling, and we are building a cross-compiled rustc, then that + // rustc needs to link to a cross-compiled libstd, so again we should have a stage1 + // libstd for the given target prepared. + // Even if we guess wrong in the cross-compiled case, the worst that should happen is + // that we build a fresh stage1 libstd below, and then we immediately uplift it, so we + // don't pay the libstd build cost twice. + && (target == builder.host_target || builder.config.hosts.contains(&target)) + } } impl Step for Std { - type Output = (); + /// Build stamp of std, if it was indeed built or uplifted. + type Output = Option<BuildStamp>; + const DEFAULT: bool = true; fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> { @@ -135,7 +164,7 @@ impl Step for Std { /// This will build the standard library for a particular stage of the build /// using the `compiler` targeting the `target` architecture. The artifacts /// created will also be linked into the sysroot directory. - fn run(self, builder: &Builder<'_>) { + fn run(self, builder: &Builder<'_>) -> Self::Output { let target = self.target; // We already have std ready to be used for stage 0. @@ -143,7 +172,7 @@ impl Step for Std { let compiler = self.build_compiler; builder.ensure(StdLink::from_std(self, compiler)); - return; + return None; } let build_compiler = if builder.download_rustc() && self.force_recompile { @@ -168,7 +197,7 @@ impl Step for Std { &sysroot, builder.config.ci_rust_std_contents(), ); - return; + return None; } if builder.config.keep_stage.contains(&build_compiler.stage) @@ -184,7 +213,7 @@ impl Step for Std { self.copy_extra_objects(builder, &build_compiler, target); builder.ensure(StdLink::from_std(self, build_compiler)); - return; + return Some(build_stamp::libstd_stamp(builder, build_compiler, target)); } let mut target_deps = builder.ensure(StartupObjects { compiler: build_compiler, target }); @@ -192,24 +221,9 @@ impl Step for Std { // Stage of the stdlib that we're building let stage = build_compiler.stage; - // If we're building a stage2+ libstd, full bootstrap is - // disabled and we have a stage1 libstd already compiled for the given target, - // then simply uplift a previously built stage1 library. - if build_compiler.stage > 1 - && !builder.config.full_bootstrap - // This estimates if a stage1 libstd exists for the given target. If we're not - // cross-compiling, it should definitely exist by the time we're building a stage2 - // libstd. - // Or if we are cross-compiling, and we are building a cross-compiled rustc, then that - // rustc needs to link to a cross-compiled libstd, so again we should have a stage1 - // libstd for the given target prepared. - // Even if we guess wrong in the cross-compiled case, the worst that should happen is - // that we build a fresh stage1 libstd below, and then we immediately uplift it, so we - // don't pay the libstd build cost twice. - && (target == builder.host_target || builder.config.hosts.contains(&target)) - { + if Self::should_be_uplifted_from_stage_1(builder, build_compiler.stage, target) { let build_compiler_for_std_to_uplift = builder.compiler(1, builder.host_target); - builder.std(build_compiler_for_std_to_uplift, target); + let stage_1_stamp = builder.std(build_compiler_for_std_to_uplift, target); let msg = if build_compiler_for_std_to_uplift.host == target { format!( @@ -230,7 +244,7 @@ impl Step for Std { self.copy_extra_objects(builder, &build_compiler, target); builder.ensure(StdLink::from_std(self, build_compiler_for_std_to_uplift)); - return; + return stage_1_stamp; } target_deps.extend(self.copy_extra_objects(builder, &build_compiler, target)); @@ -283,11 +297,13 @@ impl Step for Std { build_compiler, target, ); + + let stamp = build_stamp::libstd_stamp(builder, build_compiler, target); run_cargo( builder, cargo, vec![], - &build_stamp::libstd_stamp(builder, build_compiler, target), + &stamp, target_deps, self.is_for_mir_opt_tests, // is_check false, @@ -297,6 +313,7 @@ impl Step for Std { self, builder.compiler(build_compiler.stage, builder.config.host_target), )); + Some(stamp) } fn metadata(&self) -> Option<StepMetadata> { @@ -559,29 +576,36 @@ pub fn std_cargo(builder: &Builder<'_>, target: TargetSelection, cargo: &mut Car // If `compiler-rt` is available ensure that the `c` feature of the // `compiler-builtins` crate is enabled and it's configured to learn where // `compiler-rt` is located. - let compiler_builtins_c_feature = if builder.config.optimized_compiler_builtins(target) { - // NOTE: this interacts strangely with `llvm-has-rust-patches`. In that case, we enforce `submodules = false`, so this is a no-op. - // But, the user could still decide to manually use an in-tree submodule. - // - // NOTE: if we're using system llvm, we'll end up building a version of `compiler-rt` that doesn't match the LLVM we're linking to. - // That's probably ok? At least, the difference wasn't enforced before. There's a comment in - // the compiler_builtins build script that makes me nervous, though: - // https://github.com/rust-lang/compiler-builtins/blob/31ee4544dbe47903ce771270d6e3bea8654e9e50/build.rs#L575-L579 - builder.require_submodule( - "src/llvm-project", - Some( - "The `build.optimized-compiler-builtins` config option \ - requires `compiler-rt` sources from LLVM.", - ), - ); - let compiler_builtins_root = builder.src.join("src/llvm-project/compiler-rt"); - assert!(compiler_builtins_root.exists()); - // The path to `compiler-rt` is also used by `profiler_builtins` (above), - // so if you're changing something here please also change that as appropriate. - cargo.env("RUST_COMPILER_RT_ROOT", &compiler_builtins_root); - " compiler-builtins-c" - } else { - "" + let compiler_builtins_c_feature = match builder.config.optimized_compiler_builtins(target) { + CompilerBuiltins::LinkLLVMBuiltinsLib(path) => { + cargo.env("LLVM_COMPILER_RT_LIB", path); + " compiler-builtins-c" + } + CompilerBuiltins::BuildLLVMFuncs => { + // NOTE: this interacts strangely with `llvm-has-rust-patches`. In that case, we enforce + // `submodules = false`, so this is a no-op. But, the user could still decide to + // manually use an in-tree submodule. + // + // NOTE: if we're using system llvm, we'll end up building a version of `compiler-rt` + // that doesn't match the LLVM we're linking to. That's probably ok? At least, the + // difference wasn't enforced before. There's a comment in the compiler_builtins build + // script that makes me nervous, though: + // https://github.com/rust-lang/compiler-builtins/blob/31ee4544dbe47903ce771270d6e3bea8654e9e50/build.rs#L575-L579 + builder.require_submodule( + "src/llvm-project", + Some( + "The `build.optimized-compiler-builtins` config option \ + requires `compiler-rt` sources from LLVM.", + ), + ); + let compiler_builtins_root = builder.src.join("src/llvm-project/compiler-rt"); + assert!(compiler_builtins_root.exists()); + // The path to `compiler-rt` is also used by `profiler_builtins` (above), + // so if you're changing something here please also change that as appropriate. + cargo.env("RUST_COMPILER_RT_ROOT", &compiler_builtins_root); + " compiler-builtins-c" + } + CompilerBuiltins::BuildRustOnly => "", }; // `libtest` uses this to know whether or not to support @@ -948,7 +972,7 @@ pub struct BuiltRustc { /// so that it can compile build scripts and proc macros when building this `rustc`. /// - Makes sure that `build_compiler` has a standard library prepared for `target`, /// so that the built `rustc` can *link to it* and use it at runtime. -#[derive(Debug, PartialOrd, Ord, Clone, PartialEq, Eq, Hash)] +#[derive(Debug, Clone, PartialEq, Eq, Hash)] pub struct Rustc { /// The target on which rustc will run (its host). pub target: TargetSelection, @@ -1047,22 +1071,18 @@ impl Step for Rustc { // If we are building a stage3+ compiler, and full bootstrap is disabled, and we have a // previous rustc available, we will uplift a compiler from a previous stage. + // We do not allow cross-compilation uplifting here, because there it can be quite tricky + // to figure out which stage actually built the rustc that should be uplifted. if build_compiler.stage >= 2 && !builder.config.full_bootstrap - && (target == builder.host_target || builder.hosts.contains(&target)) + && target == builder.host_target { // Here we need to determine the **build compiler** that built the stage that we will // be uplifting. We cannot uplift stage 1, as it has a different ABI than stage 2+, // so we always uplift the stage2 compiler (compiled with stage 1). let uplift_build_compiler = builder.compiler(1, build_compiler.host); - let msg = if uplift_build_compiler.host == target { - format!("Uplifting rustc (stage2 -> stage{stage})") - } else { - format!( - "Uplifting rustc (stage2:{} -> stage{stage}:{target})", - uplift_build_compiler.host - ) - }; + + let msg = format!("Uplifting rustc from stage2 to stage{stage})"); builder.info(&msg); // Here the compiler that built the rlibs (`uplift_build_compiler`) can be different @@ -1397,8 +1417,8 @@ fn rustc_llvm_env(builder: &Builder<'_>, cargo: &mut Cargo, target: TargetSelect if builder.config.llvm_enzyme { cargo.env("LLVM_ENZYME", "1"); } - let llvm::LlvmResult { llvm_config, .. } = builder.ensure(llvm::Llvm { target }); - cargo.env("LLVM_CONFIG", &llvm_config); + let llvm::LlvmResult { host_llvm_config, .. } = builder.ensure(llvm::Llvm { target }); + cargo.env("LLVM_CONFIG", &host_llvm_config); // Some LLVM linker flags (-L and -l) may be needed to link `rustc_llvm`. Its build script // expects these to be passed via the `LLVM_LINKER_FLAGS` env variable, separated by @@ -1959,7 +1979,7 @@ impl Step for Sysroot { /// linker wrappers (LLD, LLVM bitcode linker, etc.). /// /// This will assemble a compiler in `build/$target/stage$stage`. -#[derive(Debug, PartialOrd, Ord, Clone, PartialEq, Eq, Hash)] +#[derive(Debug, Clone, PartialEq, Eq, Hash)] pub struct Assemble { /// The compiler which we will produce in this step. Assemble itself will /// take care of ensuring that the necessary prerequisites to do so exist, @@ -2004,14 +2024,52 @@ impl Step for Assemble { if builder.config.llvm_enabled(target_compiler.host) { trace!("target_compiler.host" = ?target_compiler.host, "LLVM enabled"); - let llvm::LlvmResult { llvm_config, .. } = - builder.ensure(llvm::Llvm { target: target_compiler.host }); + let target = target_compiler.host; + let llvm::LlvmResult { host_llvm_config, .. } = builder.ensure(llvm::Llvm { target }); if !builder.config.dry_run() && builder.config.llvm_tools_enabled { trace!("LLVM tools enabled"); - let llvm_bin_dir = - command(llvm_config).arg("--bindir").run_capture_stdout(builder).stdout(); - let llvm_bin_dir = Path::new(llvm_bin_dir.trim()); + let host_llvm_bin_dir = command(&host_llvm_config) + .arg("--bindir") + .run_capture_stdout(builder) + .stdout() + .trim() + .to_string(); + + let llvm_bin_dir = if target == builder.host_target { + PathBuf::from(host_llvm_bin_dir) + } else { + // If we're cross-compiling, we cannot run the target llvm-config in order to + // figure out where binaries are located. We thus have to guess. + let external_llvm_config = builder + .config + .target_config + .get(&target) + .and_then(|t| t.llvm_config.clone()); + if let Some(external_llvm_config) = external_llvm_config { + // If we have an external LLVM, just hope that the bindir is the directory + // where the LLVM config is located + external_llvm_config.parent().unwrap().to_path_buf() + } else { + // If we have built LLVM locally, then take the path of the host bindir + // relative to its output build directory, and then apply it to the target + // LLVM output build directory. + let host_llvm_out = builder.llvm_out(builder.host_target); + let target_llvm_out = builder.llvm_out(target); + if let Ok(relative_path) = + Path::new(&host_llvm_bin_dir).strip_prefix(host_llvm_out) + { + target_llvm_out.join(relative_path) + } else { + // This is the most desperate option, just replace the host target with + // the actual target in the directory path... + PathBuf::from( + host_llvm_bin_dir + .replace(&*builder.host_target.triple, &target.triple), + ) + } + } + }; // Since we've already built the LLVM tools, install them to the sysroot. // This is the equivalent of installing the `llvm-tools-preview` component via @@ -2330,6 +2388,7 @@ impl Step for Assemble { /// /// For a particular stage this will link the file listed in `stamp` into the /// `sysroot_dst` provided. +#[track_caller] pub fn add_to_sysroot( builder: &Builder<'_>, sysroot_dst: &Path, @@ -2612,7 +2671,17 @@ pub fn strip_debug(builder: &Builder<'_>, target: TargetSelection, path: &Path) } let previous_mtime = t!(t!(path.metadata()).modified()); - command("strip").arg("--strip-debug").arg(path).run_capture(builder); + let stamp = BuildStamp::new(path.parent().unwrap()) + .with_prefix(path.file_name().unwrap().to_str().unwrap()) + .with_prefix("strip") + .add_stamp(previous_mtime.duration_since(SystemTime::UNIX_EPOCH).unwrap().as_nanos()); + + // Running strip can be relatively expensive (~1s on librustc_driver.so), so we don't rerun it + // if the file is unchanged. + if !stamp.is_up_to_date() { + command("strip").arg("--strip-debug").arg(path).run_capture(builder); + } + t!(stamp.write()); let file = t!(fs::File::open(path)); diff --git a/src/bootstrap/src/core/build_steps/dist.rs b/src/bootstrap/src/core/build_steps/dist.rs index 133e6f894af..3c322256cf2 100644 --- a/src/bootstrap/src/core/build_steps/dist.rs +++ b/src/bootstrap/src/core/build_steps/dist.rs @@ -21,7 +21,9 @@ use tracing::instrument; use crate::core::build_steps::compile::{get_codegen_backend_file, normalize_codegen_backend_name}; use crate::core::build_steps::doc::DocumentationFormat; -use crate::core::build_steps::tool::{self, RustcPrivateCompilers, Tool}; +use crate::core::build_steps::tool::{ + self, RustcPrivateCompilers, Tool, ToolTargetBuildMode, get_tool_target_compiler, +}; use crate::core::build_steps::vendor::{VENDOR_DIR, Vendor}; use crate::core::build_steps::{compile, llvm}; use crate::core::builder::{Builder, Kind, RunConfig, ShouldRun, Step, StepMetadata}; @@ -54,7 +56,7 @@ fn should_build_extended_tool(builder: &Builder<'_>, tool: &str) -> bool { builder.config.tools.as_ref().is_none_or(|tools| tools.contains(tool)) } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct Docs { pub host: TargetSelection, } @@ -75,7 +77,10 @@ impl Step for Docs { /// Builds the `rust-docs` installer component. fn run(self, builder: &Builder<'_>) -> Option<GeneratedTarball> { let host = self.host; - builder.default_doc(&[]); + // FIXME: explicitly enumerate the steps that should be executed here, and gather their + // documentation, rather than running all default steps and then read their output + // from a shared directory. + builder.run_default_doc_steps(); let dest = "share/doc/rust/html"; @@ -91,7 +96,7 @@ impl Step for Docs { } } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct JsonDocs { build_compiler: Compiler, target: TargetSelection, @@ -132,13 +137,20 @@ impl Step for JsonDocs { } } +/// Builds the `rustc-docs` installer component. +/// Apart from the documentation of the `rustc_*` crates, it also includes the documentation of +/// various in-tree helper tools (bootstrap, build_helper, tidy), +/// and also rustc_private tools like rustdoc, clippy, miri or rustfmt. +/// +/// It is currently hosted at <https://doc.rust-lang.org/nightly/nightly-rustc>. #[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct RustcDocs { - pub host: TargetSelection, + target: TargetSelection, } impl Step for RustcDocs { - type Output = Option<GeneratedTarball>; + type Output = GeneratedTarball; + const DEFAULT: bool = true; const IS_HOST: bool = true; @@ -148,18 +160,17 @@ impl Step for RustcDocs { } fn make_run(run: RunConfig<'_>) { - run.builder.ensure(RustcDocs { host: run.target }); + run.builder.ensure(RustcDocs { target: run.target }); } - /// Builds the `rustc-docs` installer component. - fn run(self, builder: &Builder<'_>) -> Option<GeneratedTarball> { - let host = self.host; - builder.default_doc(&[]); + fn run(self, builder: &Builder<'_>) -> Self::Output { + let target = self.target; + builder.run_default_doc_steps(); - let mut tarball = Tarball::new(builder, "rustc-docs", &host.triple); + let mut tarball = Tarball::new(builder, "rustc-docs", &target.triple); tarball.set_product_name("Rustc Documentation"); - tarball.add_bulk_dir(builder.compiler_doc_out(host), "share/doc/rust/html/rustc"); - Some(tarball.generate()) + tarball.add_bulk_dir(builder.compiler_doc_out(target), "share/doc/rust/html/rustc"); + tarball.generate() } } @@ -354,9 +365,13 @@ fn get_cc_search_dirs( (bin_path, lib_path) } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +/// Builds the `rust-mingw` installer component. +/// +/// This contains all the bits and pieces to run the MinGW Windows targets +/// without any extra installed software (e.g., we bundle gcc, libraries, etc.). +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct Mingw { - pub host: TargetSelection, + target: TargetSelection, } impl Step for Mingw { @@ -368,39 +383,46 @@ impl Step for Mingw { } fn make_run(run: RunConfig<'_>) { - run.builder.ensure(Mingw { host: run.target }); + run.builder.ensure(Mingw { target: run.target }); } - /// Builds the `rust-mingw` installer component. - /// - /// This contains all the bits and pieces to run the MinGW Windows targets - /// without any extra installed software (e.g., we bundle gcc, libraries, etc). fn run(self, builder: &Builder<'_>) -> Option<GeneratedTarball> { - let host = self.host; - if !host.ends_with("pc-windows-gnu") || !builder.config.dist_include_mingw_linker { + let target = self.target; + if !target.ends_with("pc-windows-gnu") || !builder.config.dist_include_mingw_linker { return None; } - let mut tarball = Tarball::new(builder, "rust-mingw", &host.triple); + let mut tarball = Tarball::new(builder, "rust-mingw", &target.triple); tarball.set_product_name("Rust MinGW"); - make_win_dist(tarball.image_dir(), host, builder); + make_win_dist(tarball.image_dir(), target, builder); Some(tarball.generate()) } fn metadata(&self) -> Option<StepMetadata> { - Some(StepMetadata::dist("mingw", self.host)) + Some(StepMetadata::dist("mingw", self.target)) } } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +/// Creates the `rustc` installer component. +/// +/// This includes: +/// - The compiler and LLVM. +/// - Debugger scripts. +/// - Various helper tools, e.g. LLD or Rust Analyzer proc-macro server (if enabled). +/// - The licenses of all code used by the compiler. +/// +/// It does not include any standard library. +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct Rustc { - pub compiler: Compiler, + /// This is the compiler that we will *ship* in this dist step. + pub target_compiler: Compiler, } impl Step for Rustc { type Output = GeneratedTarball; + const DEFAULT: bool = true; const IS_HOST: bool = true; @@ -409,19 +431,19 @@ impl Step for Rustc { } fn make_run(run: RunConfig<'_>) { - run.builder - .ensure(Rustc { compiler: run.builder.compiler(run.builder.top_stage, run.target) }); + run.builder.ensure(Rustc { + target_compiler: run.builder.compiler(run.builder.top_stage, run.target), + }); } - /// Creates the `rustc` installer component. fn run(self, builder: &Builder<'_>) -> GeneratedTarball { - let compiler = self.compiler; - let host = self.compiler.host; + let target_compiler = self.target_compiler; + let target = self.target_compiler.host; - let tarball = Tarball::new(builder, "rustc", &host.triple); + let tarball = Tarball::new(builder, "rustc", &target.triple); // Prepare the rustc "image", what will actually end up getting installed - prepare_image(builder, compiler, tarball.image_dir()); + prepare_image(builder, target_compiler, tarball.image_dir()); // On MinGW we've got a few runtime DLL dependencies that we need to // include. @@ -430,16 +452,16 @@ impl Step for Rustc { // anything requiring us to distribute a license, but it's likely the // install will *also* include the rust-mingw package, which also needs // licenses, so to be safe we just include it here in all MinGW packages. - if host.contains("pc-windows-gnu") && builder.config.dist_include_mingw_linker { - runtime_dll_dist(tarball.image_dir(), host, builder); + if target.contains("pc-windows-gnu") && builder.config.dist_include_mingw_linker { + runtime_dll_dist(tarball.image_dir(), target, builder); tarball.add_dir(builder.src.join("src/etc/third-party"), "share/doc"); } return tarball.generate(); - fn prepare_image(builder: &Builder<'_>, compiler: Compiler, image: &Path) { - let host = compiler.host; - let src = builder.sysroot(compiler); + fn prepare_image(builder: &Builder<'_>, target_compiler: Compiler, image: &Path) { + let target = target_compiler.host; + let src = builder.sysroot(target_compiler); // Copy rustc binary t!(fs::create_dir_all(image.join("bin"))); @@ -452,17 +474,11 @@ impl Step for Rustc { .as_ref() .is_none_or(|tools| tools.iter().any(|tool| tool == "rustdoc")) { - let rustdoc = builder.rustdoc_for_compiler(compiler); + let rustdoc = builder.rustdoc_for_compiler(target_compiler); builder.install(&rustdoc, &image.join("bin"), FileType::Executable); } - let ra_proc_macro_srv_compiler = - builder.compiler_for(compiler.stage, builder.config.host_target, compiler.host); - let compilers = RustcPrivateCompilers::from_build_compiler( - builder, - ra_proc_macro_srv_compiler, - compiler.host, - ); + let compilers = RustcPrivateCompilers::from_target_compiler(builder, target_compiler); if let Some(ra_proc_macro_srv) = builder.ensure_if_default( tool::RustAnalyzerProcMacroSrv::from_compilers(compilers), @@ -472,11 +488,11 @@ impl Step for Rustc { builder.install(&ra_proc_macro_srv.tool_path, &dst, FileType::Executable); } - let libdir_relative = builder.libdir_relative(compiler); + let libdir_relative = builder.libdir_relative(target_compiler); // Copy runtime DLLs needed by the compiler if libdir_relative.to_str() != Some("bin") { - let libdir = builder.rustc_libdir(compiler); + let libdir = builder.rustc_libdir(target_compiler); for entry in builder.read_dir(&libdir) { // A safeguard that we will not ship libgccjit.so from the libdir, in case the // GCC codegen backend is enabled by default. @@ -503,15 +519,15 @@ impl Step for Rustc { // components like the llvm tools and LLD. LLD is included below and // tools/LLDB come later, so let's just throw it in the rustc // component for now. - maybe_install_llvm_runtime(builder, host, image); + maybe_install_llvm_runtime(builder, target, image); - let dst_dir = image.join("lib/rustlib").join(host).join("bin"); + let dst_dir = image.join("lib/rustlib").join(target).join("bin"); t!(fs::create_dir_all(&dst_dir)); // Copy over lld if it's there if builder.config.lld_enabled { - let src_dir = builder.sysroot_target_bindir(compiler, host); - let rust_lld = exe("rust-lld", compiler.host); + let src_dir = builder.sysroot_target_bindir(target_compiler, target); + let rust_lld = exe("rust-lld", target_compiler.host); builder.copy_link( &src_dir.join(&rust_lld), &dst_dir.join(&rust_lld), @@ -521,7 +537,7 @@ impl Step for Rustc { let self_contained_lld_dst_dir = dst_dir.join("gcc-ld"); t!(fs::create_dir(&self_contained_lld_dst_dir)); for name in crate::LLD_FILE_NAMES { - let exe_name = exe(name, compiler.host); + let exe_name = exe(name, target_compiler.host); builder.copy_link( &self_contained_lld_src_dir.join(&exe_name), &self_contained_lld_dst_dir.join(&exe_name), @@ -530,10 +546,12 @@ impl Step for Rustc { } } - if builder.config.llvm_enabled(compiler.host) && builder.config.llvm_tools_enabled { - let src_dir = builder.sysroot_target_bindir(compiler, host); - let llvm_objcopy = exe("llvm-objcopy", compiler.host); - let rust_objcopy = exe("rust-objcopy", compiler.host); + if builder.config.llvm_enabled(target_compiler.host) + && builder.config.llvm_tools_enabled + { + let src_dir = builder.sysroot_target_bindir(target_compiler, target); + let llvm_objcopy = exe("llvm-objcopy", target_compiler.host); + let rust_objcopy = exe("rust-objcopy", target_compiler.host); builder.copy_link( &src_dir.join(&llvm_objcopy), &dst_dir.join(&rust_objcopy), @@ -542,8 +560,8 @@ impl Step for Rustc { } if builder.tool_enabled("wasm-component-ld") { - let src_dir = builder.sysroot_target_bindir(compiler, host); - let ld = exe("wasm-component-ld", compiler.host); + let src_dir = builder.sysroot_target_bindir(target_compiler, target); + let ld = exe("wasm-component-ld", target_compiler.host); builder.copy_link(&src_dir.join(&ld), &dst_dir.join(&ld), FileType::Executable); } @@ -564,7 +582,7 @@ impl Step for Rustc { } // Debugger scripts - builder.ensure(DebuggerScripts { sysroot: image.to_owned(), host }); + builder.ensure(DebuggerScripts { sysroot: image.to_owned(), target }); // HTML copyright files let file_list = builder.ensure(super::run::GenerateCopyright); @@ -590,14 +608,16 @@ impl Step for Rustc { } fn metadata(&self) -> Option<StepMetadata> { - Some(StepMetadata::dist("rustc", self.compiler.host)) + Some(StepMetadata::dist("rustc", self.target_compiler.host)) } } +/// Copies debugger scripts for `target` into the given compiler `sysroot`. #[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct DebuggerScripts { + /// Sysroot of a compiler into which will the debugger scripts be copied to. pub sysroot: PathBuf, - pub host: TargetSelection, + pub target: TargetSelection, } impl Step for DebuggerScripts { @@ -607,16 +627,15 @@ impl Step for DebuggerScripts { run.never() } - /// Copies debugger scripts for `target` into the `sysroot` specified. fn run(self, builder: &Builder<'_>) { - let host = self.host; + let target = self.target; let sysroot = self.sysroot; let dst = sysroot.join("lib/rustlib/etc"); t!(fs::create_dir_all(&dst)); let cp_debugger_script = |file: &str| { builder.install(&builder.src.join("src/etc/").join(file), &dst, FileType::Regular); }; - if host.contains("windows-msvc") { + if target.contains("windows-msvc") { // windbg debugger scripts builder.install( &builder.src.join("src/etc/rust-windbg.cmd"), @@ -730,12 +749,28 @@ fn copy_target_libs( } } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +/// Builds the standard library (`rust-std`) dist component for a given `target`. +/// This includes the standard library dynamic library file (e.g. .so/.dll), along with stdlib +/// .rlibs. +/// +/// Note that due to uplifting, we actually ship the stage 1 library +/// (built using the stage1 compiler) even with a stage 2 dist, unless `full-bootstrap` is enabled. +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct Std { - pub compiler: Compiler, + /// Compiler that will build the standard library. + pub build_compiler: Compiler, pub target: TargetSelection, } +impl Std { + pub fn new(builder: &Builder<'_>, target: TargetSelection) -> Self { + Std { + build_compiler: builder.compiler(builder.top_stage, builder.config.host_target), + target, + } + } +} + impl Step for Std { type Output = Option<GeneratedTarball>; const DEFAULT: bool = true; @@ -745,31 +780,25 @@ impl Step for Std { } fn make_run(run: RunConfig<'_>) { - run.builder.ensure(Std { - compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.host_target, - run.target, - ), - target: run.target, - }); + run.builder.ensure(Std::new(run.builder, run.target)); } fn run(self, builder: &Builder<'_>) -> Option<GeneratedTarball> { - let compiler = self.compiler; + let build_compiler = self.build_compiler; let target = self.target; - if skip_host_target_lib(builder, compiler) { + if skip_host_target_lib(builder, build_compiler) { return None; } - builder.std(compiler, target); + // It's possible that std was uplifted and thus built with a different build compiler + // So we need to read the stamp that was actually generated when std was built + let stamp = + builder.std(build_compiler, target).expect("Standard library has to be built for dist"); let mut tarball = Tarball::new(builder, "rust-std", &target.triple); tarball.include_target_in_component_name(true); - let compiler_to_use = builder.compiler_for(compiler.stage, compiler.host, target); - let stamp = build_stamp::libstd_stamp(builder, compiler_to_use, target); verify_uefi_rlib_format(builder, target, &stamp); copy_target_libs(builder, target, tarball.image_dir(), &stamp); @@ -777,7 +806,7 @@ impl Step for Std { } fn metadata(&self) -> Option<StepMetadata> { - Some(StepMetadata::dist("std", self.target).built_by(self.compiler)) + Some(StepMetadata::dist("std", self.target).built_by(self.build_compiler)) } } @@ -785,10 +814,11 @@ impl Step for Std { /// `rust.download-rustc`. /// /// (Don't confuse this with [`RustDev`], without the `c`!) -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct RustcDev { - pub compiler: Compiler, - pub target: TargetSelection, + /// The compiler that will build rustc which will be shipped in this component. + build_compiler: Compiler, + target: TargetSelection, } impl Step for RustcDev { @@ -802,28 +832,27 @@ impl Step for RustcDev { fn make_run(run: RunConfig<'_>) { run.builder.ensure(RustcDev { - compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.host_target, - run.target, - ), + // We currently always ship a stage 2 rustc-dev component, so we build it with the + // stage 1 compiler. This might change in the future. + // The precise stage used here is important, so we hard-code it. + build_compiler: run.builder.compiler(1, run.builder.config.host_target), target: run.target, }); } fn run(self, builder: &Builder<'_>) -> Option<GeneratedTarball> { - let compiler = self.compiler; + let build_compiler = self.build_compiler; let target = self.target; - if skip_host_target_lib(builder, compiler) { + if skip_host_target_lib(builder, build_compiler) { return None; } - builder.ensure(compile::Rustc::new(compiler, target)); + // Build the compiler that we will ship + builder.ensure(compile::Rustc::new(build_compiler, target)); let tarball = Tarball::new(builder, "rustc-dev", &target.triple); - let compiler_to_use = builder.compiler_for(compiler.stage, compiler.host, target); - let stamp = build_stamp::librustc_stamp(builder, compiler_to_use, target); + let stamp = build_stamp::librustc_stamp(builder, build_compiler, target); copy_target_libs(builder, target, tarball.image_dir(), &stamp); let src_files = &["Cargo.lock"]; @@ -847,16 +876,25 @@ impl Step for RustcDev { Some(tarball.generate()) } + + fn metadata(&self) -> Option<StepMetadata> { + Some(StepMetadata::dist("rustc-dev", self.target).built_by(self.build_compiler)) + } } +/// The `rust-analysis` component used to create a tarball of save-analysis metadata. +/// +/// This component has been deprecated and its contents now only include a warning about +/// its non-availability. #[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct Analysis { - pub compiler: Compiler, - pub target: TargetSelection, + build_compiler: Compiler, + target: TargetSelection, } impl Step for Analysis { type Output = Option<GeneratedTarball>; + const DEFAULT: bool = true; fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> { @@ -865,24 +903,17 @@ impl Step for Analysis { } fn make_run(run: RunConfig<'_>) { + // The step just produces a deprecation notice, so we just hardcode stage 1 run.builder.ensure(Analysis { - // Find the actual compiler (handling the full bootstrap option) which - // produced the save-analysis data because that data isn't copied - // through the sysroot uplifting. - compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.host_target, - run.target, - ), + build_compiler: run.builder.compiler(1, run.builder.config.host_target), target: run.target, }); } - /// Creates a tarball of (degenerate) save-analysis metadata, if available. fn run(self, builder: &Builder<'_>) -> Option<GeneratedTarball> { - let compiler = self.compiler; + let compiler = self.build_compiler; let target = self.target; - if !builder.config.is_host_target(compiler.host) { + if skip_host_target_lib(builder, compiler) { return None; } @@ -905,6 +936,10 @@ impl Step for Analysis { tarball.add_dir(src, format!("lib/rustlib/{}/analysis", target.triple)); Some(tarball.generate()) } + + fn metadata(&self) -> Option<StepMetadata> { + Some(StepMetadata::dist("analysis", self.target).built_by(self.build_compiler)) + } } /// Use the `builder` to make a filtered copy of `base`/X for X in (`src_dirs` - `exclude_dirs`) to @@ -1026,7 +1061,7 @@ fn copy_src_dirs( } } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct Src; impl Step for Src { @@ -1087,7 +1122,7 @@ impl Step for Src { } } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct PlainSourceTarball; impl Step for PlainSourceTarball { @@ -1233,7 +1268,7 @@ impl Step for PlainSourceTarball { } } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct Cargo { pub build_compiler: Compiler, pub target: TargetSelection, @@ -1251,10 +1286,9 @@ impl Step for Cargo { fn make_run(run: RunConfig<'_>) { run.builder.ensure(Cargo { - build_compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.host_target, - run.target, + build_compiler: get_tool_target_compiler( + run.builder, + ToolTargetBuildMode::Build(run.target), ), target: run.target, }); @@ -1285,11 +1319,16 @@ impl Step for Cargo { Some(tarball.generate()) } + + fn metadata(&self) -> Option<StepMetadata> { + Some(StepMetadata::dist("cargo", self.target).built_by(self.build_compiler)) + } } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +/// Distribute the rust-analyzer component, which is used as a LSP by various IDEs. +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct RustAnalyzer { - pub build_compiler: Compiler, + pub compilers: RustcPrivateCompilers, pub target: TargetSelection, } @@ -1305,21 +1344,14 @@ impl Step for RustAnalyzer { fn make_run(run: RunConfig<'_>) { run.builder.ensure(RustAnalyzer { - build_compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.host_target, - run.target, - ), + compilers: RustcPrivateCompilers::new(run.builder, run.builder.top_stage, run.target), target: run.target, }); } fn run(self, builder: &Builder<'_>) -> Option<GeneratedTarball> { let target = self.target; - let compilers = - RustcPrivateCompilers::from_build_compiler(builder, self.build_compiler, self.target); - - let rust_analyzer = builder.ensure(tool::RustAnalyzer::from_compilers(compilers)); + let rust_analyzer = builder.ensure(tool::RustAnalyzer::from_compilers(self.compilers)); let mut tarball = Tarball::new(builder, "rust-analyzer", &target.triple); tarball.set_overlay(OverlayKind::RustAnalyzer); @@ -1328,11 +1360,18 @@ impl Step for RustAnalyzer { tarball.add_legal_and_readme_to("share/doc/rust-analyzer"); Some(tarball.generate()) } + + fn metadata(&self) -> Option<StepMetadata> { + Some( + StepMetadata::dist("rust-analyzer", self.target) + .built_by(self.compilers.build_compiler()), + ) + } } #[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct Clippy { - pub build_compiler: Compiler, + pub compilers: RustcPrivateCompilers, pub target: TargetSelection, } @@ -1348,25 +1387,19 @@ impl Step for Clippy { fn make_run(run: RunConfig<'_>) { run.builder.ensure(Clippy { - build_compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.host_target, - run.target, - ), + compilers: RustcPrivateCompilers::new(run.builder, run.builder.top_stage, run.target), target: run.target, }); } fn run(self, builder: &Builder<'_>) -> Option<GeneratedTarball> { let target = self.target; - let compilers = - RustcPrivateCompilers::from_build_compiler(builder, self.build_compiler, target); // Prepare the image directory // We expect clippy to build, because we've exited this step above if tool // state for clippy isn't testing. - let clippy = builder.ensure(tool::Clippy::from_compilers(compilers)); - let cargoclippy = builder.ensure(tool::CargoClippy::from_compilers(compilers)); + let clippy = builder.ensure(tool::Clippy::from_compilers(self.compilers)); + let cargoclippy = builder.ensure(tool::CargoClippy::from_compilers(self.compilers)); let mut tarball = Tarball::new(builder, "clippy", &target.triple); tarball.set_overlay(OverlayKind::Clippy); @@ -1376,11 +1409,15 @@ impl Step for Clippy { tarball.add_legal_and_readme_to("share/doc/clippy"); Some(tarball.generate()) } + + fn metadata(&self) -> Option<StepMetadata> { + Some(StepMetadata::dist("clippy", self.target).built_by(self.compilers.build_compiler())) + } } #[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct Miri { - pub build_compiler: Compiler, + pub compilers: RustcPrivateCompilers, pub target: TargetSelection, } @@ -1396,11 +1433,7 @@ impl Step for Miri { fn make_run(run: RunConfig<'_>) { run.builder.ensure(Miri { - build_compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.host_target, - run.target, - ), + compilers: RustcPrivateCompilers::new(run.builder, run.builder.top_stage, run.target), target: run.target, }); } @@ -1413,10 +1446,8 @@ impl Step for Miri { return None; } - let compilers = - RustcPrivateCompilers::from_build_compiler(builder, self.build_compiler, self.target); - let miri = builder.ensure(tool::Miri::from_compilers(compilers)); - let cargomiri = builder.ensure(tool::CargoMiri::from_compilers(compilers)); + let miri = builder.ensure(tool::Miri::from_compilers(self.compilers)); + let cargomiri = builder.ensure(tool::CargoMiri::from_compilers(self.compilers)); let mut tarball = Tarball::new(builder, "miri", &self.target.triple); tarball.set_overlay(OverlayKind::Miri); @@ -1426,11 +1457,15 @@ impl Step for Miri { tarball.add_legal_and_readme_to("share/doc/miri"); Some(tarball.generate()) } + + fn metadata(&self) -> Option<StepMetadata> { + Some(StepMetadata::dist("miri", self.target).built_by(self.compilers.build_compiler())) + } } #[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct CraneliftCodegenBackend { - pub build_compiler: Compiler, + pub compilers: RustcPrivateCompilers, pub target: TargetSelection, } @@ -1454,11 +1489,7 @@ impl Step for CraneliftCodegenBackend { fn make_run(run: RunConfig<'_>) { run.builder.ensure(CraneliftCodegenBackend { - build_compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.host_target, - run.target, - ), + compilers: RustcPrivateCompilers::new(run.builder, run.builder.top_stage, run.target), target: run.target, }); } @@ -1472,8 +1503,6 @@ impl Step for CraneliftCodegenBackend { } let target = self.target; - let compilers = - RustcPrivateCompilers::from_build_compiler(builder, self.build_compiler, target); if !target_supports_cranelift_backend(target) { builder.info("target not supported by rustc_codegen_cranelift. skipping"); return None; @@ -1484,6 +1513,7 @@ impl Step for CraneliftCodegenBackend { tarball.is_preview(true); tarball.add_legal_and_readme_to("share/doc/rustc_codegen_cranelift"); + let compilers = self.compilers; let stamp = builder.ensure(compile::CraneliftCodegenBackend { compilers }); if builder.config.dry_run() { @@ -1513,15 +1543,15 @@ impl Step for CraneliftCodegenBackend { fn metadata(&self) -> Option<StepMetadata> { Some( - StepMetadata::dist("rustc_codegen_cranelift", self.build_compiler.host) - .built_by(self.build_compiler), + StepMetadata::dist("rustc_codegen_cranelift", self.target) + .built_by(self.compilers.build_compiler()), ) } } #[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct Rustfmt { - pub build_compiler: Compiler, + pub compilers: RustcPrivateCompilers, pub target: TargetSelection, } @@ -1537,21 +1567,14 @@ impl Step for Rustfmt { fn make_run(run: RunConfig<'_>) { run.builder.ensure(Rustfmt { - build_compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.host_target, - run.target, - ), + compilers: RustcPrivateCompilers::new(run.builder, run.builder.top_stage, run.target), target: run.target, }); } fn run(self, builder: &Builder<'_>) -> Option<GeneratedTarball> { - let compilers = - RustcPrivateCompilers::from_build_compiler(builder, self.build_compiler, self.target); - - let rustfmt = builder.ensure(tool::Rustfmt::from_compilers(compilers)); - let cargofmt = builder.ensure(tool::Cargofmt::from_compilers(compilers)); + let rustfmt = builder.ensure(tool::Rustfmt::from_compilers(self.compilers)); + let cargofmt = builder.ensure(tool::Cargofmt::from_compilers(self.compilers)); let mut tarball = Tarball::new(builder, "rustfmt", &self.target.triple); tarball.set_overlay(OverlayKind::Rustfmt); @@ -1561,12 +1584,16 @@ impl Step for Rustfmt { tarball.add_legal_and_readme_to("share/doc/rustfmt"); Some(tarball.generate()) } + + fn metadata(&self) -> Option<StepMetadata> { + Some(StepMetadata::dist("rustfmt", self.target).built_by(self.compilers.build_compiler())) + } } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +/// Extended archive that contains the compiler, standard library and a bunch of tools. +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct Extended { - stage: u32, - host: TargetSelection, + build_compiler: Compiler, target: TargetSelection, } @@ -1582,8 +1609,9 @@ impl Step for Extended { fn make_run(run: RunConfig<'_>) { run.builder.ensure(Extended { - stage: run.builder.top_stage, - host: run.builder.config.host_target, + build_compiler: run + .builder + .compiler(run.builder.top_stage - 1, run.builder.host_target), target: run.target, }); } @@ -1591,10 +1619,7 @@ impl Step for Extended { /// Creates a combined installer for the specified target in the provided stage. fn run(self, builder: &Builder<'_>) { let target = self.target; - let stage = self.stage; - let compiler = builder.compiler_for(self.stage, self.host, self.target); - - builder.info(&format!("Dist extended stage{} ({})", compiler.stage, target)); + builder.info(&format!("Dist extended stage{} ({target})", builder.top_stage)); let mut tarballs = Vec::new(); let mut built_tools = HashSet::new(); @@ -1607,34 +1632,38 @@ impl Step for Extended { }; } - let target_compiler = builder.compiler(stage, target); + let rustc_private_compilers = + RustcPrivateCompilers::from_build_compiler(builder, self.build_compiler, target); + let build_compiler = rustc_private_compilers.build_compiler(); + let target_compiler = rustc_private_compilers.target_compiler(); + // When rust-std package split from rustc, we needed to ensure that during // upgrades rustc was upgraded before rust-std. To avoid rustc clobbering // the std files during uninstall. To do this ensure that rustc comes // before rust-std in the list below. - tarballs.push(builder.ensure(Rustc { compiler: target_compiler })); - tarballs.push(builder.ensure(Std { compiler, target }).expect("missing std")); + tarballs.push(builder.ensure(Rustc { target_compiler })); + tarballs.push(builder.ensure(Std { build_compiler, target }).expect("missing std")); if target.is_windows_gnu() { - tarballs.push(builder.ensure(Mingw { host: target }).expect("missing mingw")); + tarballs.push(builder.ensure(Mingw { target }).expect("missing mingw")); } add_component!("rust-docs" => Docs { host: target }); // Std stage N is documented with compiler stage N add_component!("rust-json-docs" => JsonDocs { build_compiler: target_compiler, target }); - add_component!("cargo" => Cargo { build_compiler: compiler, target }); - add_component!("rustfmt" => Rustfmt { build_compiler: compiler, target }); - add_component!("rust-analyzer" => RustAnalyzer { build_compiler: compiler, target }); + add_component!("cargo" => Cargo { build_compiler, target }); + add_component!("rustfmt" => Rustfmt { compilers: rustc_private_compilers, target }); + add_component!("rust-analyzer" => RustAnalyzer { compilers: rustc_private_compilers, target }); add_component!("llvm-components" => LlvmTools { target }); - add_component!("clippy" => Clippy { build_compiler: compiler, target }); - add_component!("miri" => Miri { build_compiler: compiler, target }); - add_component!("analysis" => Analysis { compiler, target }); + add_component!("clippy" => Clippy { compilers: rustc_private_compilers, target }); + add_component!("miri" => Miri { compilers: rustc_private_compilers, target }); + add_component!("analysis" => Analysis { build_compiler, target }); add_component!("rustc-codegen-cranelift" => CraneliftCodegenBackend { - build_compiler: compiler, + compilers: rustc_private_compilers, target }); add_component!("llvm-bitcode-linker" => LlvmBitcodeLinker { - build_compiler: compiler, + build_compiler, target }); @@ -2100,6 +2129,10 @@ impl Step for Extended { } } } + + fn metadata(&self) -> Option<StepMetadata> { + Some(StepMetadata::dist("extended", self.target).built_by(self.build_compiler)) + } } fn add_env( @@ -2230,11 +2263,12 @@ fn maybe_install_llvm( builder.install(&llvm_dylib_path, dst_libdir, FileType::NativeLibrary); } !builder.config.dry_run() - } else if let llvm::LlvmBuildStatus::AlreadyBuilt(llvm::LlvmResult { llvm_config, .. }) = - llvm::prebuilt_llvm_config(builder, target, true) + } else if let llvm::LlvmBuildStatus::AlreadyBuilt(llvm::LlvmResult { + host_llvm_config, .. + }) = llvm::prebuilt_llvm_config(builder, target, true) { trace!("LLVM already built, installing LLVM files"); - let mut cmd = command(llvm_config); + let mut cmd = command(host_llvm_config); cmd.arg("--libfiles"); builder.verbose(|| println!("running {cmd:?}")); let files = cmd.run_capture_stdout(builder).stdout(); @@ -2404,7 +2438,7 @@ impl Step for LlvmTools { /// Distributes the `llvm-bitcode-linker` tool so that it can be used by a compiler whose host /// is `target`. -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct LlvmBitcodeLinker { /// The linker will be compiled by this compiler. pub build_compiler: Compiler, @@ -2561,15 +2595,17 @@ impl Step for RustDev { /// Tarball intended for internal consumption to ease rustc/std development. /// +/// It only packages the binaries that were already compiled when bootstrap itself was built. +/// /// Should not be considered stable by end users. #[derive(Clone, Debug, Eq, Hash, PartialEq)] pub struct Bootstrap { - pub target: TargetSelection, + target: TargetSelection, } impl Step for Bootstrap { type Output = Option<GeneratedTarball>; - const DEFAULT: bool = false; + const IS_HOST: bool = true; fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> { @@ -2596,6 +2632,10 @@ impl Step for Bootstrap { Some(tarball.generate()) } + + fn metadata(&self) -> Option<StepMetadata> { + Some(StepMetadata::dist("bootstrap", self.target)) + } } /// Tarball containing a prebuilt version of the build-manifest tool, intended to be used by the @@ -2604,12 +2644,12 @@ impl Step for Bootstrap { /// Should not be considered stable by end users. #[derive(Clone, Debug, Eq, Hash, PartialEq)] pub struct BuildManifest { - pub target: TargetSelection, + target: TargetSelection, } impl Step for BuildManifest { type Output = GeneratedTarball; - const DEFAULT: bool = false; + const IS_HOST: bool = true; fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> { @@ -2627,16 +2667,20 @@ impl Step for BuildManifest { tarball.add_file(&build_manifest, "bin", FileType::Executable); tarball.generate() } + + fn metadata(&self) -> Option<StepMetadata> { + Some(StepMetadata::dist("build-manifest", self.target)) + } } /// Tarball containing artifacts necessary to reproduce the build of rustc. /// -/// Currently this is the PGO profile data. +/// Currently this is the PGO (and possibly BOLT) profile data. /// /// Should not be considered stable by end users. #[derive(Clone, Debug, Eq, Hash, PartialEq)] pub struct ReproducibleArtifacts { - pub target: TargetSelection, + target: TargetSelection, } impl Step for ReproducibleArtifacts { @@ -2669,6 +2713,10 @@ impl Step for ReproducibleArtifacts { } if added_anything { Some(tarball.generate()) } else { None } } + + fn metadata(&self) -> Option<StepMetadata> { + Some(StepMetadata::dist("reproducible-artifacts", self.target)) + } } /// Tarball containing a prebuilt version of the libgccjit library, @@ -2676,7 +2724,7 @@ impl Step for ReproducibleArtifacts { /// backend needing a prebuilt libLLVM). #[derive(Clone, Debug, Eq, Hash, PartialEq)] pub struct Gcc { - pub target: TargetSelection, + target: TargetSelection, } impl Step for Gcc { @@ -2696,4 +2744,8 @@ impl Step for Gcc { tarball.add_file(&output.libgccjit, "lib", FileType::NativeLibrary); tarball.generate() } + + fn metadata(&self) -> Option<StepMetadata> { + Some(StepMetadata::dist("gcc", self.target)) + } } diff --git a/src/bootstrap/src/core/build_steps/doc.rs b/src/bootstrap/src/core/build_steps/doc.rs index f6b27d83120..8c20c8c479a 100644 --- a/src/bootstrap/src/core/build_steps/doc.rs +++ b/src/bootstrap/src/core/build_steps/doc.rs @@ -580,7 +580,7 @@ impl Step for SharedAssets { } /// Document the standard library using `build_compiler`. -#[derive(Debug, Clone, Hash, PartialEq, Eq, PartialOrd, Ord)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct Std { build_compiler: Compiler, target: TargetSelection, @@ -715,7 +715,7 @@ impl Step for Std { /// or remote link. const STD_PUBLIC_CRATES: [&str; 5] = ["core", "alloc", "std", "proc_macro", "test"]; -#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq, PartialOrd, Ord)] +#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)] pub enum DocumentationFormat { Html, Json, @@ -784,7 +784,7 @@ fn doc_std( let description = format!("library{} in {} format", crate_description(requested_crates), format.as_str()); - let _guard = builder.msg(Kind::Doc, description, None, build_compiler, target); + let _guard = builder.msg(Kind::Doc, description, Mode::Std, build_compiler, target); cargo.into_cmd().run(builder); builder.cp_link_r(&out_dir, out); @@ -994,7 +994,7 @@ macro_rules! tool_doc { (compilers.build_compiler(), Mode::ToolRustc) } else { // bootstrap/host tools have to be documented with the stage 0 compiler - (prepare_doc_compiler(run.builder, target, 1), Mode::ToolBootstrap) + (prepare_doc_compiler(run.builder, run.builder.host_target, 1), Mode::ToolBootstrap) }; run.builder.ensure($tool { build_compiler, mode, target }); @@ -1230,7 +1230,7 @@ fn symlink_dir_force(config: &Config, original: &Path, link: &Path) { } /// Builds the Rust compiler book. -#[derive(Ord, PartialOrd, Debug, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct RustcBook { build_compiler: Compiler, target: TargetSelection, @@ -1334,7 +1334,7 @@ impl Step for RustcBook { /// Documents the reference. /// It has to always be done using a stage 1+ compiler, because it references in-tree /// compiler/stdlib concepts. -#[derive(Ord, PartialOrd, Debug, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct Reference { build_compiler: Compiler, target: TargetSelection, diff --git a/src/bootstrap/src/core/build_steps/gcc.rs b/src/bootstrap/src/core/build_steps/gcc.rs index 2b36b0f2e27..77c9622a9bf 100644 --- a/src/bootstrap/src/core/build_steps/gcc.rs +++ b/src/bootstrap/src/core/build_steps/gcc.rs @@ -122,7 +122,7 @@ fn try_download_gcc(builder: &Builder<'_>, target: TargetSelection) -> Option<Pa match source { PathFreshness::LastModifiedUpstream { upstream } => { // Download from upstream CI - let root = ci_gcc_root(&builder.config); + let root = ci_gcc_root(&builder.config, target); let gcc_stamp = BuildStamp::new(&root).with_prefix("gcc").add_stamp(&upstream); if !gcc_stamp.is_up_to_date() && !builder.config.dry_run() { builder.config.download_ci_gcc(&upstream, &root); @@ -286,8 +286,8 @@ pub fn add_cg_gcc_cargo_flags(cargo: &mut Cargo, gcc: &GccOutput) { /// The absolute path to the downloaded GCC artifacts. #[cfg(not(test))] -fn ci_gcc_root(config: &crate::Config) -> PathBuf { - config.out.join(config.host_target).join("ci-gcc") +fn ci_gcc_root(config: &crate::Config, target: TargetSelection) -> PathBuf { + config.out.join(target).join("ci-gcc") } /// Detect whether GCC sources have been modified locally or not. diff --git a/src/bootstrap/src/core/build_steps/install.rs b/src/bootstrap/src/core/build_steps/install.rs index 4457258e9cd..ce68dbf5a20 100644 --- a/src/bootstrap/src/core/build_steps/install.rs +++ b/src/bootstrap/src/core/build_steps/install.rs @@ -7,6 +7,7 @@ use std::path::{Component, Path, PathBuf}; use std::{env, fs}; use crate::core::build_steps::dist; +use crate::core::build_steps::tool::RustcPrivateCompilers; use crate::core::builder::{Builder, RunConfig, ShouldRun, Step}; use crate::core::config::{Config, TargetSelection}; use crate::utils::exec::command; @@ -64,17 +65,14 @@ fn is_dir_writable_for_user(dir: &Path) -> bool { fn install_sh( builder: &Builder<'_>, package: &str, - stage: u32, - host: Option<TargetSelection>, + build_compiler: impl Into<Option<Compiler>>, + target: Option<TargetSelection>, tarball: &GeneratedTarball, ) { - let _guard = builder.msg( - Kind::Install, - package, - None, - (host.unwrap_or(builder.host_target), stage), - host, - ); + let _guard = match build_compiler.into() { + Some(build_compiler) => builder.msg(Kind::Install, package, None, build_compiler, target), + None => builder.msg_unstaged(Kind::Install, package, target.unwrap_or(builder.host_target)), + }; let prefix = default_path(&builder.config.prefix, "/usr/local"); let sysconfdir = prefix.join(default_path(&builder.config.sysconfdir, "/etc")); @@ -166,10 +164,10 @@ macro_rules! install { IS_HOST: $IS_HOST:expr, $run_item:block $(, $c:ident)*;)+) => { $( - #[derive(Debug, Clone, Hash, PartialEq, Eq)] + #[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct $name { - pub compiler: Compiler, - pub target: TargetSelection, + build_compiler: Compiler, + target: TargetSelection, } impl $name { @@ -193,7 +191,7 @@ macro_rules! install { fn make_run(run: RunConfig<'_>) { run.builder.ensure($name { - compiler: run.builder.compiler(run.builder.top_stage, run.builder.config.host_target), + build_compiler: run.builder.compiler(run.builder.top_stage - 1, run.builder.config.host_target), target: run.target, }); } @@ -208,96 +206,95 @@ macro_rules! install { install!((self, builder, _config), Docs, path = "src/doc", _config.docs, IS_HOST: false, { let tarball = builder.ensure(dist::Docs { host: self.target }).expect("missing docs"); - install_sh(builder, "docs", self.compiler.stage, Some(self.target), &tarball); + install_sh(builder, "docs", self.build_compiler, Some(self.target), &tarball); }; Std, path = "library/std", true, IS_HOST: false, { // `expect` should be safe, only None when host != build, but this // only runs when host == build - let tarball = builder.ensure(dist::Std { - compiler: self.compiler, - target: self.target - }).expect("missing std"); - install_sh(builder, "std", self.compiler.stage, Some(self.target), &tarball); + let std = dist::Std::new(builder, self.target); + let build_compiler = std.build_compiler; + let tarball = builder.ensure(std).expect("missing std"); + install_sh(builder, "std", build_compiler, Some(self.target), &tarball); }; Cargo, alias = "cargo", Self::should_build(_config), IS_HOST: true, { let tarball = builder - .ensure(dist::Cargo { build_compiler: self.compiler, target: self.target }) + .ensure(dist::Cargo { build_compiler: self.build_compiler, target: self.target }) .expect("missing cargo"); - install_sh(builder, "cargo", self.compiler.stage, Some(self.target), &tarball); + install_sh(builder, "cargo", self.build_compiler, Some(self.target), &tarball); }; RustAnalyzer, alias = "rust-analyzer", Self::should_build(_config), IS_HOST: true, { if let Some(tarball) = - builder.ensure(dist::RustAnalyzer { build_compiler: self.compiler, target: self.target }) + builder.ensure(dist::RustAnalyzer { compilers: RustcPrivateCompilers::from_build_compiler(builder, self.build_compiler, self.target), target: self.target }) { - install_sh(builder, "rust-analyzer", self.compiler.stage, Some(self.target), &tarball); + install_sh(builder, "rust-analyzer", self.build_compiler, Some(self.target), &tarball); } else { builder.info( - &format!("skipping Install rust-analyzer stage{} ({})", self.compiler.stage, self.target), + &format!("skipping Install rust-analyzer stage{} ({})", self.build_compiler.stage + 1, self.target), ); } }; Clippy, alias = "clippy", Self::should_build(_config), IS_HOST: true, { let tarball = builder - .ensure(dist::Clippy { build_compiler: self.compiler, target: self.target }) + .ensure(dist::Clippy { compilers: RustcPrivateCompilers::from_build_compiler(builder, self.build_compiler, self.target), target: self.target }) .expect("missing clippy"); - install_sh(builder, "clippy", self.compiler.stage, Some(self.target), &tarball); + install_sh(builder, "clippy", self.build_compiler, Some(self.target), &tarball); }; Miri, alias = "miri", Self::should_build(_config), IS_HOST: true, { - if let Some(tarball) = builder.ensure(dist::Miri { build_compiler: self.compiler, target: self.target }) { - install_sh(builder, "miri", self.compiler.stage, Some(self.target), &tarball); + if let Some(tarball) = builder.ensure(dist::Miri { compilers: RustcPrivateCompilers::from_build_compiler(builder, self.build_compiler, self.target) , target: self.target }) { + install_sh(builder, "miri", self.build_compiler, Some(self.target), &tarball); } else { // Miri is only available on nightly builder.info( - &format!("skipping Install miri stage{} ({})", self.compiler.stage, self.target), + &format!("skipping Install miri stage{} ({})", self.build_compiler.stage + 1, self.target), ); } }; LlvmTools, alias = "llvm-tools", _config.llvm_tools_enabled && _config.llvm_enabled(_config.host_target), IS_HOST: true, { if let Some(tarball) = builder.ensure(dist::LlvmTools { target: self.target }) { - install_sh(builder, "llvm-tools", self.compiler.stage, Some(self.target), &tarball); + install_sh(builder, "llvm-tools", None, Some(self.target), &tarball); } else { builder.info( - &format!("skipping llvm-tools stage{} ({}): external LLVM", self.compiler.stage, self.target), + &format!("skipping llvm-tools ({}): external LLVM", self.target), ); } }; Rustfmt, alias = "rustfmt", Self::should_build(_config), IS_HOST: true, { if let Some(tarball) = builder.ensure(dist::Rustfmt { - build_compiler: self.compiler, + compilers: RustcPrivateCompilers::from_build_compiler(builder, self.build_compiler, self.target), target: self.target }) { - install_sh(builder, "rustfmt", self.compiler.stage, Some(self.target), &tarball); + install_sh(builder, "rustfmt", self.build_compiler, Some(self.target), &tarball); } else { builder.info( - &format!("skipping Install Rustfmt stage{} ({})", self.compiler.stage, self.target), + &format!("skipping Install Rustfmt stage{} ({})", self.build_compiler.stage + 1, self.target), ); } }; Rustc, path = "compiler/rustc", true, IS_HOST: true, { let tarball = builder.ensure(dist::Rustc { - compiler: builder.compiler(builder.top_stage, self.target), + target_compiler: builder.compiler(self.build_compiler.stage + 1, self.target), }); - install_sh(builder, "rustc", self.compiler.stage, Some(self.target), &tarball); + install_sh(builder, "rustc", self.build_compiler, Some(self.target), &tarball); }; RustcCodegenCranelift, alias = "rustc-codegen-cranelift", Self::should_build(_config), IS_HOST: true, { if let Some(tarball) = builder.ensure(dist::CraneliftCodegenBackend { - build_compiler: self.compiler, + compilers: RustcPrivateCompilers::from_build_compiler(builder, self.build_compiler, self.target), target: self.target }) { - install_sh(builder, "rustc-codegen-cranelift", self.compiler.stage, Some(self.target), &tarball); + install_sh(builder, "rustc-codegen-cranelift", self.build_compiler, Some(self.target), &tarball); } else { builder.info( &format!("skipping Install CodegenBackend(\"cranelift\") stage{} ({})", - self.compiler.stage, self.target), + self.build_compiler.stage + 1, self.target), ); } }; LlvmBitcodeLinker, alias = "llvm-bitcode-linker", Self::should_build(_config), IS_HOST: true, { - if let Some(tarball) = builder.ensure(dist::LlvmBitcodeLinker { build_compiler: self.compiler, target: self.target }) { - install_sh(builder, "llvm-bitcode-linker", self.compiler.stage, Some(self.target), &tarball); + if let Some(tarball) = builder.ensure(dist::LlvmBitcodeLinker { build_compiler: self.build_compiler, target: self.target }) { + install_sh(builder, "llvm-bitcode-linker", self.build_compiler, Some(self.target), &tarball); } else { builder.info( - &format!("skipping llvm-bitcode-linker stage{} ({})", self.compiler.stage, self.target), + &format!("skipping llvm-bitcode-linker stage{} ({})", self.build_compiler.stage + 1, self.target), ); } }; @@ -305,7 +302,7 @@ install!((self, builder, _config), #[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct Src { - pub stage: u32, + stage: u32, } impl Step for Src { @@ -325,6 +322,6 @@ impl Step for Src { fn run(self, builder: &Builder<'_>) { let tarball = builder.ensure(dist::Src); - install_sh(builder, "src", self.stage, None, &tarball); + install_sh(builder, "src", None, None, &tarball); } } diff --git a/src/bootstrap/src/core/build_steps/llvm.rs b/src/bootstrap/src/core/build_steps/llvm.rs index 260108292e0..70259f0d1d7 100644 --- a/src/bootstrap/src/core/build_steps/llvm.rs +++ b/src/bootstrap/src/core/build_steps/llvm.rs @@ -29,7 +29,7 @@ use crate::{CLang, GitRepo, Kind, trace}; pub struct LlvmResult { /// Path to llvm-config binary. /// NB: This is always the host llvm-config! - pub llvm_config: PathBuf, + pub host_llvm_config: PathBuf, /// Path to LLVM cmake directory for the target. pub llvm_cmake_dir: PathBuf, } @@ -109,14 +109,14 @@ pub fn prebuilt_llvm_config( && let Some(ref s) = config.llvm_config { check_llvm_version(builder, s); - let llvm_config = s.to_path_buf(); - let mut llvm_cmake_dir = llvm_config.clone(); + let host_llvm_config = s.to_path_buf(); + let mut llvm_cmake_dir = host_llvm_config.clone(); llvm_cmake_dir.pop(); llvm_cmake_dir.pop(); llvm_cmake_dir.push("lib"); llvm_cmake_dir.push("cmake"); llvm_cmake_dir.push("llvm"); - return LlvmBuildStatus::AlreadyBuilt(LlvmResult { llvm_config, llvm_cmake_dir }); + return LlvmBuildStatus::AlreadyBuilt(LlvmResult { host_llvm_config, llvm_cmake_dir }); } if handle_submodule_when_needed { @@ -141,7 +141,7 @@ pub fn prebuilt_llvm_config( }; let llvm_cmake_dir = out_dir.join("lib/cmake/llvm"); - let res = LlvmResult { llvm_config: build_llvm_config, llvm_cmake_dir }; + let res = LlvmResult { host_llvm_config: build_llvm_config, llvm_cmake_dir }; static STAMP_HASH_MEMO: OnceLock<String> = OnceLock::new(); let smart_stamp_hash = STAMP_HASH_MEMO.get_or_init(|| { @@ -220,10 +220,6 @@ pub(crate) fn is_ci_llvm_available_for_target( ("armv7-unknown-linux-gnueabihf", false), ("loongarch64-unknown-linux-gnu", false), ("loongarch64-unknown-linux-musl", false), - ("mips-unknown-linux-gnu", false), - ("mips64-unknown-linux-gnuabi64", false), - ("mips64el-unknown-linux-gnuabi64", false), - ("mipsel-unknown-linux-gnu", false), ("powerpc-unknown-linux-gnu", false), ("powerpc64-unknown-linux-gnu", false), ("powerpc64le-unknown-linux-gnu", false), @@ -487,11 +483,11 @@ impl Step for Llvm { // https://llvm.org/docs/HowToCrossCompileLLVM.html if !builder.config.is_host_target(target) { - let LlvmResult { llvm_config, .. } = + let LlvmResult { host_llvm_config, .. } = builder.ensure(Llvm { target: builder.config.host_target }); if !builder.config.dry_run() { let llvm_bindir = - command(&llvm_config).arg("--bindir").run_capture_stdout(builder).stdout(); + command(&host_llvm_config).arg("--bindir").run_capture_stdout(builder).stdout(); let host_bin = Path::new(llvm_bindir.trim()); cfg.define( "LLVM_TABLEGEN", @@ -500,7 +496,7 @@ impl Step for Llvm { // LLVM_NM is required for cross compiling using MSVC cfg.define("LLVM_NM", host_bin.join("llvm-nm").with_extension(EXE_EXTENSION)); } - cfg.define("LLVM_CONFIG_PATH", llvm_config); + cfg.define("LLVM_CONFIG_PATH", host_llvm_config); if builder.config.llvm_clang { let build_bin = builder.llvm_out(builder.config.host_target).join("build").join("bin"); @@ -542,7 +538,7 @@ impl Step for Llvm { // Helper to find the name of LLVM's shared library on darwin and linux. let find_llvm_lib_name = |extension| { - let major = get_llvm_version_major(builder, &res.llvm_config); + let major = get_llvm_version_major(builder, &res.host_llvm_config); match &llvm_version_suffix { Some(version_suffix) => format!("libLLVM-{major}{version_suffix}.{extension}"), None => format!("libLLVM-{major}.{extension}"), @@ -919,7 +915,7 @@ impl Step for Enzyme { } let target = self.target; - let LlvmResult { llvm_config, .. } = builder.ensure(Llvm { target: self.target }); + let LlvmResult { host_llvm_config, .. } = builder.ensure(Llvm { target: self.target }); static STAMP_HASH_MEMO: OnceLock<String> = OnceLock::new(); let smart_stamp_hash = STAMP_HASH_MEMO.get_or_init(|| { @@ -973,7 +969,7 @@ impl Step for Enzyme { cfg.out_dir(&out_dir) .profile(profile) - .env("LLVM_CONFIG_REAL", &llvm_config) + .env("LLVM_CONFIG_REAL", &host_llvm_config) .define("LLVM_ENABLE_ASSERTIONS", "ON") .define("ENZYME_EXTERNAL_SHARED_LIB", "ON") .define("ENZYME_BC_LOADER", "OFF") @@ -1010,13 +1006,13 @@ impl Step for Lld { } let target = self.target; - let LlvmResult { llvm_config, llvm_cmake_dir } = builder.ensure(Llvm { target }); + let LlvmResult { host_llvm_config, llvm_cmake_dir } = builder.ensure(Llvm { target }); // The `dist` step packages LLD next to LLVM's binaries for download-ci-llvm. The root path // we usually expect here is `./build/$triple/ci-llvm/`, with the binaries in its `bin` // subfolder. We check if that's the case, and if LLD's binary already exists there next to // `llvm-config`: if so, we can use it instead of building LLVM/LLD from source. - let ci_llvm_bin = llvm_config.parent().unwrap(); + let ci_llvm_bin = host_llvm_config.parent().unwrap(); if ci_llvm_bin.is_dir() && ci_llvm_bin.file_name().unwrap() == "bin" { let lld_path = ci_llvm_bin.join(exe("lld", target)); if lld_path.exists() { @@ -1099,7 +1095,7 @@ impl Step for Lld { // Use the host llvm-tblgen binary. cfg.define( "LLVM_TABLEGEN_EXE", - llvm_config.with_file_name("llvm-tblgen").with_extension(EXE_EXTENSION), + host_llvm_config.with_file_name("llvm-tblgen").with_extension(EXE_EXTENSION), ); } @@ -1140,7 +1136,7 @@ impl Step for Sanitizers { return runtimes; } - let LlvmResult { llvm_config, .. } = + let LlvmResult { host_llvm_config, .. } = builder.ensure(Llvm { target: builder.config.host_target }); static STAMP_HASH_MEMO: OnceLock<String> = OnceLock::new(); @@ -1180,7 +1176,7 @@ impl Step for Sanitizers { cfg.define("COMPILER_RT_BUILD_XRAY", "OFF"); cfg.define("COMPILER_RT_DEFAULT_TARGET_ONLY", "ON"); cfg.define("COMPILER_RT_USE_LIBCXX", "OFF"); - cfg.define("LLVM_CONFIG_PATH", &llvm_config); + cfg.define("LLVM_CONFIG_PATH", &host_llvm_config); if self.target.contains("ohos") { cfg.define("COMPILER_RT_USE_BUILTINS_LIBRARY", "ON"); diff --git a/src/bootstrap/src/core/build_steps/run.rs b/src/bootstrap/src/core/build_steps/run.rs index 7f1a7d00257..c6288f63847 100644 --- a/src/bootstrap/src/core/build_steps/run.rs +++ b/src/bootstrap/src/core/build_steps/run.rs @@ -17,7 +17,7 @@ use crate::core::config::flags::get_completion; use crate::utils::exec::command; use crate::{Mode, t}; -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct BuildManifest; impl Step for BuildManifest { @@ -56,7 +56,7 @@ impl Step for BuildManifest { } } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct BumpStage0; impl Step for BumpStage0 { @@ -78,7 +78,7 @@ impl Step for BumpStage0 { } } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct ReplaceVersionPlaceholder; impl Step for ReplaceVersionPlaceholder { @@ -169,7 +169,7 @@ impl Step for Miri { } } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct CollectLicenseMetadata; impl Step for CollectLicenseMetadata { @@ -200,7 +200,7 @@ impl Step for CollectLicenseMetadata { } } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct GenerateCopyright; impl Step for GenerateCopyright { @@ -264,7 +264,7 @@ impl Step for GenerateCopyright { } } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct GenerateWindowsSys; impl Step for GenerateWindowsSys { @@ -326,7 +326,7 @@ impl Step for GenerateCompletions { } } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct UnicodeTableGenerator; impl Step for UnicodeTableGenerator { @@ -348,7 +348,7 @@ impl Step for UnicodeTableGenerator { } } -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct FeaturesStatusDump; impl Step for FeaturesStatusDump { @@ -408,7 +408,7 @@ impl Step for CyclicStep { /// /// The coverage-dump tool is an internal detail of coverage tests, so this run /// step is only needed when testing coverage-dump manually. -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct CoverageDump; impl Step for CoverageDump { diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index 4006bed4ac5..318287df08a 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -153,7 +153,7 @@ You can skip linkcheck with --skip src/tools/linkchecker" } // Build all the default documentation. - builder.default_doc(&[]); + builder.run_default_doc_steps(); // Build the linkchecker before calling `msg`, since GHA doesn't support nested groups. let linkchecker = builder.tool_cmd(Tool::Linkchecker); @@ -208,7 +208,7 @@ impl Step for HtmlCheck { panic!("Cannot run html-check tests"); } // Ensure that a few different kinds of documentation are available. - builder.default_doc(&[]); + builder.run_default_doc_steps(); builder.ensure(crate::core::build_steps::doc::Rustc::for_stage( builder, builder.top_stage, @@ -1719,7 +1719,7 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the if suite == "debuginfo" { builder.ensure(dist::DebuggerScripts { sysroot: builder.sysroot(compiler).to_path_buf(), - host: target, + target, }); } if suite == "run-make" { @@ -1830,10 +1830,27 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the cmd.arg("--host").arg(&*compiler.host.triple); cmd.arg("--llvm-filecheck").arg(builder.llvm_filecheck(builder.config.host_target)); - if let Some(codegen_backend) = builder.config.default_codegen_backend(compiler.host) { - // Tells compiletest which codegen backend is used by default by the compiler. + if let Some(codegen_backend) = builder.config.cmd.test_codegen_backend() { + if !builder.config.enabled_codegen_backends(compiler.host).contains(codegen_backend) { + eprintln!( + "\ +ERROR: No configured backend named `{name}` +HELP: You can add it into `bootstrap.toml` in `rust.codegen-backends = [{name:?}]`", + name = codegen_backend.name(), + ); + crate::exit!(1); + } + // Tells compiletest that we want to use this codegen in particular and to override + // the default one. + cmd.arg("--override-codegen-backend").arg(codegen_backend.name()); + // Tells compiletest which codegen backend to use. // It is used to e.g. ignore tests that don't support that codegen backend. - cmd.arg("--codegen-backend").arg(codegen_backend.name()); + cmd.arg("--default-codegen-backend").arg(codegen_backend.name()); + } else { + // Tells compiletest which codegen backend to use. + // It is used to e.g. ignore tests that don't support that codegen backend. + cmd.arg("--default-codegen-backend") + .arg(builder.config.default_codegen_backend(compiler.host).unwrap().name()); } if builder.build.config.llvm_enzyme { @@ -2021,12 +2038,14 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the let mut llvm_components_passed = false; let mut copts_passed = false; if builder.config.llvm_enabled(compiler.host) { - let llvm::LlvmResult { llvm_config, .. } = + let llvm::LlvmResult { host_llvm_config, .. } = builder.ensure(llvm::Llvm { target: builder.config.host_target }); if !builder.config.dry_run() { - let llvm_version = get_llvm_version(builder, &llvm_config); - let llvm_components = - command(&llvm_config).arg("--components").run_capture_stdout(builder).stdout(); + let llvm_version = get_llvm_version(builder, &host_llvm_config); + let llvm_components = command(&host_llvm_config) + .arg("--components") + .run_capture_stdout(builder) + .stdout(); // Remove trailing newline from llvm-config output. cmd.arg("--llvm-version") .arg(llvm_version.trim()) @@ -2044,7 +2063,7 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the // rustc args as a workaround. if !builder.config.dry_run() && suite.ends_with("fulldeps") { let llvm_libdir = - command(&llvm_config).arg("--libdir").run_capture_stdout(builder).stdout(); + command(&host_llvm_config).arg("--libdir").run_capture_stdout(builder).stdout(); let link_llvm = if target.is_msvc() { format!("-Clink-arg=-LIBPATH:{llvm_libdir}") } else { @@ -2058,7 +2077,7 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the // tools. Pass the path to run-make tests so they can use them. // (The coverage-run tests also need these tools to process // coverage reports.) - let llvm_bin_path = llvm_config + let llvm_bin_path = host_llvm_config .parent() .expect("Expected llvm-config to be contained in directory"); assert!(llvm_bin_path.is_dir()); @@ -2732,7 +2751,7 @@ fn prepare_cargo_test( /// FIXME(Zalathar): Try to split this into two separate steps: a user-visible /// step for testing standard library crates, and an internal step used for both /// library crates and compiler crates. -#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)] +#[derive(Debug, Clone, PartialEq, Eq, Hash)] pub struct Crate { pub compiler: Compiler, pub target: TargetSelection, @@ -3747,7 +3766,7 @@ impl Step for TestFloatParse { /// Runs the tool `src/tools/collect-license-metadata` in `ONLY_CHECK=1` mode, /// which verifies that `license-metadata.json` is up-to-date and therefore /// running the tool normally would not update anything. -#[derive(Debug, PartialOrd, Ord, Clone, Hash, PartialEq, Eq)] +#[derive(Debug, Clone, Hash, PartialEq, Eq)] pub struct CollectLicenseMetadata; impl Step for CollectLicenseMetadata { diff --git a/src/bootstrap/src/core/build_steps/tool.rs b/src/bootstrap/src/core/build_steps/tool.rs index b62c9a906b7..c10b8253646 100644 --- a/src/bootstrap/src/core/build_steps/tool.rs +++ b/src/bootstrap/src/core/build_steps/tool.rs @@ -1581,6 +1581,10 @@ impl Builder<'_> { /// `host`. pub fn tool_cmd(&self, tool: Tool) -> BootstrapCommand { let mut cmd = command(self.tool_exe(tool)); + + // Do not cache tool invocations, as they can have side effects + cmd.do_not_cache(); + let compiler = self.compiler(0, self.config.host_target); let host = &compiler.host; // Prepares the `cmd` provided to be able to run the `compiler` provided. diff --git a/src/bootstrap/src/core/builder/cargo.rs b/src/bootstrap/src/core/builder/cargo.rs index 69a744a86cb..72192403412 100644 --- a/src/bootstrap/src/core/builder/cargo.rs +++ b/src/bootstrap/src/core/builder/cargo.rs @@ -1326,7 +1326,12 @@ impl Builder<'_> { if let Some(limit) = limit && (build_compiler_stage == 0 - || self.config.default_codegen_backend(target).unwrap_or_default().is_llvm()) + || self + .config + .default_codegen_backend(target) + .cloned() + .unwrap_or_default() + .is_llvm()) { rustflags.arg(&format!("-Cllvm-args=-import-instr-limit={limit}")); } diff --git a/src/bootstrap/src/core/builder/mod.rs b/src/bootstrap/src/core/builder/mod.rs index 043cb1c2666..4f1bed13c13 100644 --- a/src/bootstrap/src/core/builder/mod.rs +++ b/src/bootstrap/src/core/builder/mod.rs @@ -22,6 +22,7 @@ use crate::core::build_steps::{ }; use crate::core::config::flags::Subcommand; use crate::core::config::{DryRun, TargetSelection}; +use crate::utils::build_stamp::BuildStamp; use crate::utils::cache::Cache; use crate::utils::exec::{BootstrapCommand, ExecutionContext, command}; use crate::utils::helpers::{self, LldThreads, add_dylib_path, exe, libdir, linker_args, t}; @@ -1308,8 +1309,9 @@ impl<'a> Builder<'a> { self.run_step_descriptions(&Builder::get_step_descriptions(self.kind), &self.paths); } - pub fn default_doc(&self, paths: &[PathBuf]) { - self.run_step_descriptions(&Builder::get_step_descriptions(Kind::Doc), paths); + /// Run all default documentation steps to build documentation. + pub fn run_default_doc_steps(&self) { + self.run_step_descriptions(&Builder::get_step_descriptions(Kind::Doc), &[]); } pub fn doc_rust_lang_org_channel(&self) -> String { @@ -1411,6 +1413,8 @@ impl<'a> Builder<'a> { /// The standard library will be linked to the sysroot of the passed compiler. /// /// Prefer using this method rather than manually invoking `Std::new`. + /// + /// Returns an optional build stamp, if libstd was indeed built. #[cfg_attr( feature = "tracing", instrument( @@ -1424,7 +1428,7 @@ impl<'a> Builder<'a> { ), ), )] - pub fn std(&self, compiler: Compiler, target: TargetSelection) { + pub fn std(&self, compiler: Compiler, target: TargetSelection) -> Option<BuildStamp> { // FIXME: make the `Std` step return some type-level "proof" that std was indeed built, // and then require passing that to all Cargo invocations that we do. @@ -1443,10 +1447,11 @@ You have to build a stage1 compiler for `{}` first, and then use it to build a s // We still need to link the prebuilt standard library into the ephemeral stage0 sysroot self.ensure(StdLink::from_std(Std::new(compiler, target), compiler)); + None } else { // This step both compiles the std and links it into the compiler's sysroot. // Yes, it's quite magical and side-effecty.. would be nice to refactor later. - self.ensure(Std::new(compiler, target)); + self.ensure(Std::new(compiler, target)) } } @@ -1647,11 +1652,15 @@ You have to build a stage1 compiler for `{}` first, and then use it to build a s /// /// Note that this returns `None` if LLVM is disabled, or if we're in a /// check build or dry-run, where there's no need to build all of LLVM. + /// + /// FIXME(@kobzol) + /// **WARNING**: This actually returns the **HOST** LLVM config, not LLVM config for the given + /// *target*. pub fn llvm_config(&self, target: TargetSelection) -> Option<PathBuf> { if self.config.llvm_enabled(target) && self.kind != Kind::Check && !self.config.dry_run() { - let llvm::LlvmResult { llvm_config, .. } = self.ensure(llvm::Llvm { target }); - if llvm_config.is_file() { - return Some(llvm_config); + let llvm::LlvmResult { host_llvm_config, .. } = self.ensure(llvm::Llvm { target }); + if host_llvm_config.is_file() { + return Some(host_llvm_config); } } None diff --git a/src/bootstrap/src/core/builder/tests.rs b/src/bootstrap/src/core/builder/tests.rs index f4266a6085b..5260b43f706 100644 --- a/src/bootstrap/src/core/builder/tests.rs +++ b/src/bootstrap/src/core/builder/tests.rs @@ -434,14 +434,14 @@ fn test_prebuilt_llvm_config_path_resolution() { false, ) .llvm_result() - .llvm_config + .host_llvm_config .clone(); let actual = drop_win_disk_prefix_if_present(actual); assert_eq!(expected, actual); let actual = prebuilt_llvm_config(&builder, builder.config.host_target, false) .llvm_result() - .llvm_config + .host_llvm_config .clone(); let actual = drop_win_disk_prefix_if_present(actual); assert_eq!(expected, actual); @@ -459,7 +459,7 @@ fn test_prebuilt_llvm_config_path_resolution() { let actual = prebuilt_llvm_config(&builder, builder.config.host_target, false) .llvm_result() - .llvm_config + .host_llvm_config .clone(); let expected = builder .out @@ -482,7 +482,7 @@ fn test_prebuilt_llvm_config_path_resolution() { let actual = prebuilt_llvm_config(&builder, builder.config.host_target, false) .llvm_result() - .llvm_config + .host_llvm_config .clone(); let expected = builder .out @@ -673,6 +673,83 @@ mod snapshot { } #[test] + fn build_compiler_stage_3() { + let ctx = TestCtx::new(); + insta::assert_snapshot!( + ctx.config("build") + .path("compiler") + .stage(3) + .render_steps(), @r" + [build] llvm <host> + [build] rustc 0 <host> -> rustc 1 <host> + [build] rustc 1 <host> -> std 1 <host> + [build] rustc 1 <host> -> rustc 2 <host> + [build] rustc 2 <host> -> std 2 <host> + [build] rustc 2 <host> -> rustc 3 <host> + "); + } + + #[test] + fn build_compiler_stage_3_cross() { + let ctx = TestCtx::new(); + insta::assert_snapshot!( + ctx.config("build") + .path("compiler") + .hosts(&[TEST_TRIPLE_1]) + .stage(3) + .render_steps(), @r" + [build] llvm <host> + [build] llvm <target1> + [build] rustc 0 <host> -> rustc 1 <host> + [build] rustc 1 <host> -> std 1 <host> + [build] rustc 1 <host> -> rustc 2 <host> + [build] rustc 1 <host> -> std 1 <target1> + [build] rustc 2 <host> -> std 2 <target1> + [build] rustc 2 <host> -> std 2 <host> + [build] rustc 2 <host> -> rustc 3 <target1> + "); + } + + #[test] + fn build_compiler_stage_3_full_bootstrap() { + let ctx = TestCtx::new(); + insta::assert_snapshot!( + ctx.config("build") + .path("compiler") + .stage(3) + .args(&["--set", "build.full-bootstrap=true"]) + .render_steps(), @r" + [build] llvm <host> + [build] rustc 0 <host> -> rustc 1 <host> + [build] rustc 1 <host> -> std 1 <host> + [build] rustc 1 <host> -> rustc 2 <host> + [build] rustc 2 <host> -> std 2 <host> + [build] rustc 2 <host> -> rustc 3 <host> + "); + } + + #[test] + fn build_compiler_stage_3_cross_full_bootstrap() { + let ctx = TestCtx::new(); + insta::assert_snapshot!( + ctx.config("build") + .path("compiler") + .stage(3) + .hosts(&[TEST_TRIPLE_1]) + .args(&["--set", "build.full-bootstrap=true"]) + .render_steps(), @r" + [build] llvm <host> + [build] llvm <target1> + [build] rustc 0 <host> -> rustc 1 <host> + [build] rustc 1 <host> -> std 1 <host> + [build] rustc 1 <host> -> rustc 2 <host> + [build] rustc 2 <host> -> std 2 <target1> + [build] rustc 2 <host> -> std 2 <host> + [build] rustc 2 <host> -> rustc 3 <target1> + "); + } + + #[test] fn build_compiler_codegen_backend() { let ctx = TestCtx::new(); insta::assert_snapshot!( @@ -1056,8 +1133,11 @@ mod snapshot { [dist] mingw <host> [build] rustc 0 <host> -> GenerateCopyright 1 <host> [dist] rustc <host> - [dist] rustc 1 <host> -> std 1 <host> + [build] rustc 2 <host> -> std 2 <host> + [dist] rustc 2 <host> -> std 2 <host> + [dist] rustc 1 <host> -> rustc-dev 2 <host> [dist] src <> + [dist] reproducible-artifacts <host> " ); } @@ -1118,16 +1198,27 @@ mod snapshot { [build] rustc 1 <host> -> rust-analyzer-proc-macro-srv 2 <host> [build] rustc 0 <host> -> GenerateCopyright 1 <host> [dist] rustc <host> - [dist] rustc 1 <host> -> std 1 <host> + [build] rustc 2 <host> -> std 2 <host> + [dist] rustc 2 <host> -> std 2 <host> + [dist] rustc 1 <host> -> rustc-dev 2 <host> + [dist] rustc 1 <host> -> analysis 2 <host> [dist] src <> [build] rustc 1 <host> -> cargo 2 <host> + [dist] rustc 1 <host> -> cargo 2 <host> [build] rustc 1 <host> -> rust-analyzer 2 <host> + [dist] rustc 1 <host> -> rust-analyzer 2 <host> [build] rustc 1 <host> -> rustfmt 2 <host> [build] rustc 1 <host> -> cargo-fmt 2 <host> + [dist] rustc 1 <host> -> rustfmt 2 <host> [build] rustc 1 <host> -> clippy-driver 2 <host> [build] rustc 1 <host> -> cargo-clippy 2 <host> + [dist] rustc 1 <host> -> clippy 2 <host> [build] rustc 1 <host> -> miri 2 <host> [build] rustc 1 <host> -> cargo-miri 2 <host> + [dist] rustc 1 <host> -> miri 2 <host> + [dist] rustc 1 <host> -> std 1 <host> + [dist] rustc 1 <host> -> extended 2 <host> + [dist] reproducible-artifacts <host> "); } @@ -1196,10 +1287,13 @@ mod snapshot { [dist] mingw <target1> [build] rustc 0 <host> -> GenerateCopyright 1 <host> [dist] rustc <host> - [dist] rustc 1 <host> -> std 1 <host> + [build] rustc 2 <host> -> std 2 <host> + [dist] rustc 2 <host> -> std 2 <host> [build] rustc 2 <host> -> std 2 <target1> [dist] rustc 2 <host> -> std 2 <target1> + [dist] rustc 1 <host> -> rustc-dev 2 <host> [dist] src <> + [dist] reproducible-artifacts <host> " ); } @@ -1256,8 +1350,13 @@ mod snapshot { [dist] rustc <host> [build] rustdoc 2 <target1> [dist] rustc <target1> - [dist] rustc 1 <host> -> std 1 <host> + [build] rustc 2 <host> -> std 2 <host> + [dist] rustc 2 <host> -> std 2 <host> + [dist] rustc 1 <host> -> rustc-dev 2 <host> + [dist] rustc 1 <host> -> rustc-dev 2 <target1> [dist] src <> + [dist] reproducible-artifacts <host> + [dist] reproducible-artifacts <target1> " ); } @@ -1334,9 +1433,15 @@ mod snapshot { [dist] rustc <host> [build] rustdoc 2 <target1> [dist] rustc <target1> - [dist] rustc 1 <host> -> std 1 <host> - [dist] rustc 1 <host> -> std 1 <target1> + [build] rustc 2 <host> -> std 2 <host> + [dist] rustc 2 <host> -> std 2 <host> + [build] rustc 2 <host> -> std 2 <target1> + [dist] rustc 2 <host> -> std 2 <target1> + [dist] rustc 1 <host> -> rustc-dev 2 <host> + [dist] rustc 1 <host> -> rustc-dev 2 <target1> [dist] src <> + [dist] reproducible-artifacts <host> + [dist] reproducible-artifacts <target1> " ); } @@ -1440,18 +1545,29 @@ mod snapshot { [build] rustc 1 <host> -> rust-analyzer-proc-macro-srv 2 <target1> [build] rustc 0 <host> -> GenerateCopyright 1 <host> [dist] rustc <target1> - [dist] rustc 1 <host> -> std 1 <target1> + [build] rustc 2 <host> -> std 2 <target1> + [dist] rustc 2 <host> -> std 2 <target1> + [dist] rustc 1 <host> -> rustc-dev 2 <target1> + [dist] rustc 1 <host> -> analysis 2 <target1> [dist] src <> [build] rustc 1 <host> -> cargo 2 <target1> + [dist] rustc 1 <host> -> cargo 2 <target1> [build] rustc 1 <host> -> rust-analyzer 2 <target1> + [dist] rustc 1 <host> -> rust-analyzer 2 <target1> [build] rustc 1 <host> -> rustfmt 2 <target1> [build] rustc 1 <host> -> cargo-fmt 2 <target1> + [dist] rustc 1 <host> -> rustfmt 2 <target1> [build] rustc 1 <host> -> clippy-driver 2 <target1> [build] rustc 1 <host> -> cargo-clippy 2 <target1> + [dist] rustc 1 <host> -> clippy 2 <target1> [build] rustc 1 <host> -> miri 2 <target1> [build] rustc 1 <host> -> cargo-miri 2 <target1> + [dist] rustc 1 <host> -> miri 2 <target1> [build] rustc 1 <host> -> LlvmBitcodeLinker 2 <target1> + [dist] rustc 1 <host> -> std 1 <target1> [doc] rustc 2 <target1> -> std 2 <target1> crates=[] + [dist] rustc 1 <host> -> extended 2 <target1> + [dist] reproducible-artifacts <target1> "); } @@ -1503,8 +1619,24 @@ mod snapshot { [build] rustc 0 <host> -> GenerateCopyright 1 <host> [dist] rustc <host> [dist] rustc 1 <host> -> rustc_codegen_cranelift 2 <host> - [dist] rustc 1 <host> -> std 1 <host> + [build] rustc 2 <host> -> std 2 <host> + [dist] rustc 2 <host> -> std 2 <host> + [dist] rustc 1 <host> -> rustc-dev 2 <host> [dist] src <> + [dist] reproducible-artifacts <host> + "); + } + + #[test] + fn dist_bootstrap() { + let ctx = TestCtx::new(); + insta::assert_snapshot!( + ctx + .config("dist") + .path("bootstrap") + .render_steps(), @r" + [build] rustc 0 <host> -> RustInstaller 1 <host> + [dist] bootstrap <host> "); } @@ -1514,7 +1646,7 @@ mod snapshot { insta::assert_snapshot!( ctx.config("check") .path("compiler") - .render_steps(), @"[check] rustc 0 <host> -> rustc 1 <host> (73 crates)"); + .render_steps(), @"[check] rustc 0 <host> -> rustc 1 <host> (74 crates)"); } #[test] @@ -1540,7 +1672,7 @@ mod snapshot { ctx.config("check") .path("compiler") .stage(1) - .render_steps(), @"[check] rustc 0 <host> -> rustc 1 <host> (73 crates)"); + .render_steps(), @"[check] rustc 0 <host> -> rustc 1 <host> (74 crates)"); } #[test] @@ -1554,7 +1686,7 @@ mod snapshot { [build] llvm <host> [build] rustc 0 <host> -> rustc 1 <host> [build] rustc 1 <host> -> std 1 <host> - [check] rustc 1 <host> -> rustc 2 <host> (73 crates) + [check] rustc 1 <host> -> rustc 2 <host> (74 crates) "); } @@ -1570,7 +1702,7 @@ mod snapshot { [build] rustc 0 <host> -> rustc 1 <host> [build] rustc 1 <host> -> std 1 <host> [check] rustc 1 <host> -> std 1 <target1> - [check] rustc 1 <host> -> rustc 2 <target1> (73 crates) + [check] rustc 1 <host> -> rustc 2 <target1> (74 crates) [check] rustc 1 <host> -> rustc 2 <target1> [check] rustc 1 <host> -> Rustdoc 2 <target1> [check] rustc 1 <host> -> rustc_codegen_cranelift 2 <target1> @@ -1666,7 +1798,7 @@ mod snapshot { ctx.config("check") .paths(&["library", "compiler"]) .args(&args) - .render_steps(), @"[check] rustc 0 <host> -> rustc 1 <host> (73 crates)"); + .render_steps(), @"[check] rustc 0 <host> -> rustc 1 <host> (74 crates)"); } #[test] @@ -2049,6 +2181,197 @@ mod snapshot { [doc] rustc 1 <host> -> reference (book) 2 <host> "); } + + #[test] + fn clippy_ci() { + let ctx = TestCtx::new(); + insta::assert_snapshot!( + ctx.config("clippy") + .path("ci") + .stage(2) + .render_steps(), @r" + [build] llvm <host> + [build] rustc 0 <host> -> rustc 1 <host> + [build] rustc 1 <host> -> std 1 <host> + [build] rustc 0 <host> -> clippy-driver 1 <host> + [build] rustc 0 <host> -> cargo-clippy 1 <host> + [clippy] rustc 1 <host> -> bootstrap 2 <host> + [clippy] rustc 1 <host> -> std 1 <host> + [clippy] rustc 1 <host> -> rustc 2 <host> + [check] rustc 1 <host> -> rustc 2 <host> + [clippy] rustc 1 <host> -> rustc_codegen_gcc 2 <host> + "); + } + + #[test] + fn clippy_compiler_stage1() { + let ctx = TestCtx::new(); + insta::assert_snapshot!( + ctx.config("clippy") + .path("compiler") + .render_steps(), @r" + [build] llvm <host> + [clippy] rustc 0 <host> -> rustc 1 <host> + "); + } + + #[test] + fn clippy_compiler_stage2() { + let ctx = TestCtx::new(); + insta::assert_snapshot!( + ctx.config("clippy") + .path("compiler") + .stage(2) + .render_steps(), @r" + [build] llvm <host> + [build] rustc 0 <host> -> rustc 1 <host> + [build] rustc 1 <host> -> std 1 <host> + [build] rustc 0 <host> -> clippy-driver 1 <host> + [build] rustc 0 <host> -> cargo-clippy 1 <host> + [clippy] rustc 1 <host> -> rustc 2 <host> + "); + } + + #[test] + fn clippy_std_stage1() { + let ctx = TestCtx::new(); + insta::assert_snapshot!( + ctx.config("clippy") + .path("std") + .render_steps(), @r" + [build] llvm <host> + [build] rustc 0 <host> -> rustc 1 <host> + [build] rustc 0 <host> -> clippy-driver 1 <host> + [build] rustc 0 <host> -> cargo-clippy 1 <host> + [clippy] rustc 1 <host> -> std 1 <host> + "); + } + + #[test] + fn clippy_std_stage2() { + let ctx = TestCtx::new(); + insta::assert_snapshot!( + ctx.config("clippy") + .path("std") + .stage(2) + .render_steps(), @r" + [build] llvm <host> + [build] rustc 0 <host> -> rustc 1 <host> + [build] rustc 1 <host> -> std 1 <host> + [build] rustc 1 <host> -> rustc 2 <host> + [build] rustc 1 <host> -> clippy-driver 2 <host> + [build] rustc 1 <host> -> cargo-clippy 2 <host> + [clippy] rustc 2 <host> -> std 2 <host> + "); + } + + #[test] + fn clippy_miri_stage1() { + let ctx = TestCtx::new(); + insta::assert_snapshot!( + ctx.config("clippy") + .path("miri") + .stage(1) + .render_steps(), @r" + [build] llvm <host> + [check] rustc 0 <host> -> rustc 1 <host> + [clippy] rustc 0 <host> -> miri 1 <host> + "); + } + + #[test] + fn clippy_miri_stage2() { + let ctx = TestCtx::new(); + insta::assert_snapshot!( + ctx.config("clippy") + .path("miri") + .stage(2) + .render_steps(), @r" + [build] llvm <host> + [build] rustc 0 <host> -> rustc 1 <host> + [build] rustc 1 <host> -> std 1 <host> + [check] rustc 1 <host> -> rustc 2 <host> + [build] rustc 0 <host> -> clippy-driver 1 <host> + [build] rustc 0 <host> -> cargo-clippy 1 <host> + [clippy] rustc 1 <host> -> miri 2 <host> + "); + } + + #[test] + fn clippy_bootstrap() { + let ctx = TestCtx::new(); + insta::assert_snapshot!( + ctx.config("clippy") + .path("bootstrap") + .render_steps(), @"[clippy] rustc 0 <host> -> bootstrap 1 <host>"); + } + + #[test] + fn install_extended() { + let ctx = TestCtx::new(); + insta::assert_snapshot!( + ctx.config("install") + .args(&[ + // Using backslashes fails with `--set` + "--set", &format!("install.prefix={}", ctx.dir().display()).replace("\\", "/"), + "--set", &format!("install.sysconfdir={}", ctx.dir().display()).replace("\\", "/"), + "--set", "build.extended=true" + ]) + .render_steps(), @r" + [build] llvm <host> + [build] rustc 0 <host> -> rustc 1 <host> + [build] rustc 0 <host> -> WasmComponentLd 1 <host> + [build] rustc 0 <host> -> UnstableBookGen 1 <host> + [build] rustc 0 <host> -> Rustbook 1 <host> + [doc] unstable-book (book) <host> + [build] rustc 1 <host> -> std 1 <host> + [doc] book (book) <host> + [doc] book/first-edition (book) <host> + [doc] book/second-edition (book) <host> + [doc] book/2018-edition (book) <host> + [build] rustdoc 1 <host> + [doc] rustc 1 <host> -> standalone 2 <host> + [build] rustc 1 <host> -> rustc 2 <host> + [build] rustc 1 <host> -> WasmComponentLd 2 <host> + [build] rustdoc 2 <host> + [doc] rustc 2 <host> -> std 2 <host> crates=[alloc,compiler_builtins,core,panic_abort,panic_unwind,proc_macro,rustc-std-workspace-core,std,std_detect,sysroot,test,unwind] + [build] rustc 1 <host> -> error-index 2 <host> + [doc] rustc 1 <host> -> error-index 2 <host> + [doc] nomicon (book) <host> + [doc] rustc 1 <host> -> reference (book) 2 <host> + [doc] rustdoc (book) <host> + [doc] rust-by-example (book) <host> + [build] rustc 0 <host> -> LintDocs 1 <host> + [doc] rustc (book) <host> + [doc] cargo (book) <host> + [doc] clippy (book) <host> + [doc] embedded-book (book) <host> + [doc] edition-guide (book) <host> + [doc] style-guide (book) <host> + [doc] rustc 1 <host> -> releases 2 <host> + [build] rustc 0 <host> -> RustInstaller 1 <host> + [dist] docs <host> + [build] rustc 2 <host> -> std 2 <host> + [dist] rustc 2 <host> -> std 2 <host> + [build] rustc 1 <host> -> rust-analyzer-proc-macro-srv 2 <host> + [build] rustc 0 <host> -> GenerateCopyright 1 <host> + [dist] rustc <host> + [build] rustc 1 <host> -> cargo 2 <host> + [dist] rustc 1 <host> -> cargo 2 <host> + [build] rustc 1 <host> -> rust-analyzer 2 <host> + [dist] rustc 1 <host> -> rust-analyzer 2 <host> + [build] rustc 1 <host> -> rustfmt 2 <host> + [build] rustc 1 <host> -> cargo-fmt 2 <host> + [dist] rustc 1 <host> -> rustfmt 2 <host> + [build] rustc 1 <host> -> clippy-driver 2 <host> + [build] rustc 1 <host> -> cargo-clippy 2 <host> + [dist] rustc 1 <host> -> clippy 2 <host> + [build] rustc 1 <host> -> miri 2 <host> + [build] rustc 1 <host> -> cargo-miri 2 <host> + [dist] rustc 1 <host> -> miri 2 <host> + [dist] src <> + "); + } } struct ExecutedSteps { diff --git a/src/bootstrap/src/core/config/config.rs b/src/bootstrap/src/core/config/config.rs index 5eea5436023..e5c2e3c64b8 100644 --- a/src/bootstrap/src/core/config/config.rs +++ b/src/bootstrap/src/core/config/config.rs @@ -13,7 +13,6 @@ //! and the `bootstrap.toml` file—merging them, applying defaults, and performing //! cross-component validation. The main `parse_inner` function and its supporting //! helpers reside here, transforming raw `Toml` data into the structured `Config` type. - use std::cell::Cell; use std::collections::{BTreeSet, HashMap, HashSet}; use std::io::IsTerminal; @@ -47,8 +46,8 @@ use crate::core::config::toml::rust::{ }; use crate::core::config::toml::target::Target; use crate::core::config::{ - DebuginfoLevel, DryRun, GccCiMode, LlvmLibunwind, Merge, ReplaceOpt, RustcLto, SplitDebuginfo, - StringOrBool, set, threads_from_config, + CompilerBuiltins, DebuginfoLevel, DryRun, GccCiMode, LlvmLibunwind, Merge, ReplaceOpt, + RustcLto, SplitDebuginfo, StringOrBool, threads_from_config, }; use crate::core::download::{ DownloadContext, download_beta_toolchain, is_download_ci_available, maybe_download_rustfmt, @@ -122,8 +121,7 @@ pub struct Config { pub patch_binaries_for_nix: Option<bool>, pub stage0_metadata: build_helper::stage0_parser::Stage0, pub android_ndk: Option<PathBuf>, - /// Whether to use the `c` feature of the `compiler_builtins` crate. - pub optimized_compiler_builtins: bool, + pub optimized_compiler_builtins: CompilerBuiltins, pub stdout_is_tty: bool, pub stderr_is_tty: bool, @@ -328,59 +326,6 @@ pub struct Config { } impl Config { - #[cfg_attr( - feature = "tracing", - instrument(target = "CONFIG_HANDLING", level = "trace", name = "Config::default_opts") - )] - pub fn default_opts() -> Config { - #[cfg(feature = "tracing")] - span!(target: "CONFIG_HANDLING", tracing::Level::TRACE, "constructing default config"); - - Config { - bypass_bootstrap_lock: false, - llvm_optimize: true, - ninja_in_file: true, - llvm_static_stdcpp: false, - llvm_libzstd: false, - backtrace: true, - rust_optimize: RustOptimize::Bool(true), - rust_optimize_tests: true, - rust_randomize_layout: false, - submodules: None, - docs: true, - docs_minification: true, - rust_rpath: true, - rust_strip: false, - channel: "dev".to_string(), - codegen_tests: true, - rust_dist_src: true, - rust_codegen_backends: vec![CodegenBackendKind::Llvm], - deny_warnings: true, - bindir: "bin".into(), - dist_include_mingw_linker: true, - dist_compression_profile: "fast".into(), - - stdout_is_tty: std::io::stdout().is_terminal(), - stderr_is_tty: std::io::stderr().is_terminal(), - - // set by build.rs - host_target: get_host_target(), - - src: { - let manifest_dir = PathBuf::from(env!("CARGO_MANIFEST_DIR")); - // Undo `src/bootstrap` - manifest_dir.parent().unwrap().parent().unwrap().to_owned() - }, - out: PathBuf::from("build"), - - // This is needed by codegen_ssa on macOS to ship `llvm-objcopy` aliased to - // `rust-objcopy` to workaround bad `strip`s on macOS. - llvm_tools_enabled: true, - - ..Default::default() - } - } - pub fn set_dry_run(&mut self, dry_run: DryRun) { self.exec_ctx.set_dry_run(dry_run); } @@ -463,35 +408,29 @@ impl Config { "flags.exclude" = ?flags_exclude ); - // First initialize the bare minimum that we need for further operation - source directory - // and execution context. - let mut config = Config::default_opts(); - let exec_ctx = ExecutionContext::new(flags_verbose, flags_cmd.fail_fast()); - - config.exec_ctx = exec_ctx; + // Set config values based on flags. + let mut exec_ctx = ExecutionContext::new(flags_verbose, flags_cmd.fail_fast()); + exec_ctx.set_dry_run(if flags_dry_run { DryRun::UserSelected } else { DryRun::Disabled }); + let mut src = { + let manifest_dir = PathBuf::from(env!("CARGO_MANIFEST_DIR")); + // Undo `src/bootstrap` + manifest_dir.parent().unwrap().parent().unwrap().to_owned() + }; - if let Some(src) = compute_src_directory(flags_src, &config.exec_ctx) { - config.src = src; + if let Some(src_) = compute_src_directory(flags_src, &exec_ctx) { + src = src_; } // Now load the TOML config, as soon as possible - let (mut toml, toml_path) = load_toml_config(&config.src, flags_config, &get_toml); - config.config = toml_path.clone(); - - postprocess_toml( - &mut toml, - &config.src, - toml_path, - config.exec_ctx(), - &flags_set, - &get_toml, - ); + let (mut toml, toml_path) = load_toml_config(&src, flags_config, &get_toml); + + postprocess_toml(&mut toml, &src, toml_path.clone(), &exec_ctx, &flags_set, &get_toml); // Now override TOML values with flags, to make sure that we won't later override flags with // TOML values by accident instead, because flags have higher priority. let Build { description: build_description, - build: mut build_build, + build: build_build, host: build_host, target: build_target, build_dir: build_build_dir, @@ -538,7 +477,7 @@ impl Config { metrics: _, android_ndk: build_android_ndk, optimized_compiler_builtins: build_optimized_compiler_builtins, - jobs: mut build_jobs, + jobs: build_jobs, compiletest_diff_tool: build_compiletest_diff_tool, compiletest_use_stage0_libtest: build_compiletest_use_stage0_libtest, tidy_extra_checks: build_tidy_extra_checks, @@ -656,6 +595,58 @@ impl Config { let Gcc { download_ci_gcc: gcc_download_ci_gcc } = toml.gcc.unwrap_or_default(); + if rust_optimize.as_ref().is_some_and(|v| matches!(v, RustOptimize::Bool(false))) { + eprintln!( + "WARNING: setting `optimize` to `false` is known to cause errors and \ + should be considered unsupported. Refer to `bootstrap.example.toml` \ + for more details." + ); + } + + // Prefer CLI verbosity flags if set (`flags_verbose` > 0), otherwise take the value from + // TOML. + exec_ctx.set_verbosity(cmp::max(build_verbose.unwrap_or_default() as u8, flags_verbose)); + + let stage0_metadata = build_helper::stage0_parser::parse_stage0_file(); + let path_modification_cache = Arc::new(Mutex::new(HashMap::new())); + + let host_target = flags_build + .or(build_build) + .map(|build| TargetSelection::from_user(&build)) + .unwrap_or_else(get_host_target); + let hosts = flags_host + .map(|TargetSelectionList(hosts)| hosts) + .or_else(|| { + build_host.map(|h| h.iter().map(|t| TargetSelection::from_user(t)).collect()) + }) + .unwrap_or_else(|| vec![host_target]); + + let llvm_assertions = llvm_assertions.unwrap_or(false); + let mut target_config = HashMap::new(); + let mut channel = "dev".to_string(); + let out = flags_build_dir.or(build_build_dir.map(PathBuf::from)).unwrap_or_else(|| { + if cfg!(test) { + // Use the build directory of the original x.py invocation, so that we can set `initial_rustc` properly. + Path::new( + &env::var_os("CARGO_TARGET_DIR").expect("cargo test directly is not supported"), + ) + .parent() + .unwrap() + .to_path_buf() + } else { + PathBuf::from("build") + } + }); + + // NOTE: Bootstrap spawns various commands with different working directories. + // To avoid writing to random places on the file system, `config.out` needs to be an absolute path. + let mut out = if !out.is_absolute() { + // `canonicalize` requires the path to already exist. Use our vendored copy of `absolute` instead. + absolute(&out).expect("can't make empty path absolute") + } else { + out + }; + if cfg!(test) { // When configuring bootstrap for tests, make sure to set the rustc and Cargo to the // same ones used to call the tests (if custom ones are not defined in the toml). If we @@ -666,118 +657,13 @@ impl Config { build_cargo = build_cargo.take().or(std::env::var_os("CARGO").map(|p| p.into())); } - build_jobs = flags_jobs.or(build_jobs); - build_build = flags_build.or(build_build); - - let build_dir = flags_build_dir.or(build_build_dir.map(PathBuf::from)); - let host = if let Some(TargetSelectionList(hosts)) = flags_host { - Some(hosts) - } else { - build_host - .map(|file_host| file_host.iter().map(|h| TargetSelection::from_user(h)).collect()) - }; - let target = if let Some(TargetSelectionList(targets)) = flags_target { - Some(targets) - } else { - build_target.map(|file_target| { - file_target.iter().map(|h| TargetSelection::from_user(h)).collect() - }) - }; - - if let Some(rustc) = &build_rustc - && !flags_skip_stage0_validation - { - check_stage0_version(rustc, "rustc", &config.src, config.exec_ctx()); - } - if let Some(cargo) = &build_cargo - && !flags_skip_stage0_validation - { - check_stage0_version(cargo, "cargo", &config.src, config.exec_ctx()); - } - - // Prefer CLI verbosity flags if set (`flags_verbose` > 0), otherwise take the value from - // TOML. - config - .exec_ctx - .set_verbosity(cmp::max(build_verbose.unwrap_or_default() as u8, flags_verbose)); - - let mut paths: Vec<PathBuf> = flags_skip.into_iter().chain(flags_exclude).collect(); - if let Some(exclude) = build_exclude { - paths.extend(exclude); - } - - // Set config values based on flags. - config.paths = flags_paths; - config.include_default_paths = flags_include_default_paths; - config.rustc_error_format = flags_rustc_error_format; - config.json_output = flags_json_output; - config.compile_time_deps = flags_compile_time_deps; - config.on_fail = flags_on_fail; - config.cmd = flags_cmd; - config.incremental = flags_incremental; - config.set_dry_run(if flags_dry_run { DryRun::UserSelected } else { DryRun::Disabled }); - config.dump_bootstrap_shims = flags_dump_bootstrap_shims; - config.keep_stage = flags_keep_stage; - config.keep_stage_std = flags_keep_stage_std; - config.color = flags_color; - config.free_args = flags_free_args; - config.llvm_profile_use = flags_llvm_profile_use; - config.llvm_profile_generate = flags_llvm_profile_generate; - config.enable_bolt_settings = flags_enable_bolt_settings; - config.bypass_bootstrap_lock = flags_bypass_bootstrap_lock; - config.is_running_on_ci = flags_ci.unwrap_or(CiEnv::is_ci()); - config.skip_std_check_if_no_download_rustc = flags_skip_std_check_if_no_download_rustc; - - // Infer the rest of the configuration. - - if cfg!(test) { - // Use the build directory of the original x.py invocation, so that we can set `initial_rustc` properly. - config.out = Path::new( - &env::var_os("CARGO_TARGET_DIR").expect("cargo test directly is not supported"), - ) - .parent() - .unwrap() - .to_path_buf(); - } - - config.compiletest_allow_stage0 = build_compiletest_allow_stage0.unwrap_or(false); - config.stage0_metadata = build_helper::stage0_parser::parse_stage0_file(); - - config.change_id = toml.change_id.inner; - - config.skip = paths - .into_iter() - .map(|p| { - // Never return top-level path here as it would break `--skip` - // logic on rustc's internal test framework which is utilized - // by compiletest. - if cfg!(windows) { - PathBuf::from(p.to_str().unwrap().replace('/', "\\")) - } else { - p - } - }) - .collect(); - - #[cfg(feature = "tracing")] - span!( - target: "CONFIG_HANDLING", - tracing::Level::TRACE, - "normalizing and combining `flag.skip`/`flag.exclude` paths", - "config.skip" = ?config.skip, - ); - - config.jobs = Some(threads_from_config(build_jobs.unwrap_or(0))); - if let Some(build) = build_build { - config.host_target = TargetSelection::from_user(&build); - } - - set(&mut config.out, build_dir); - // NOTE: Bootstrap spawns various commands with different working directories. - // To avoid writing to random places on the file system, `config.out` needs to be an absolute path. - if !config.out.is_absolute() { - // `canonicalize` requires the path to already exist. Use our vendored copy of `absolute` instead. - config.out = absolute(&config.out).expect("can't make empty path absolute"); + if !flags_skip_stage0_validation { + if let Some(rustc) = &build_rustc { + check_stage0_version(rustc, "rustc", &src, &exec_ctx); + } + if let Some(cargo) = &build_cargo { + check_stage0_version(cargo, "cargo", &src, &exec_ctx); + } } if build_cargo_clippy.is_some() && build_rustc.is_none() { @@ -786,146 +672,68 @@ impl Config { ); } - config.initial_rustc = if let Some(rustc) = build_rustc { - rustc - } else { - let dwn_ctx = DownloadContext::from(&config); - download_beta_toolchain(dwn_ctx); - config - .out - .join(config.host_target) - .join("stage0") - .join("bin") - .join(exe("rustc", config.host_target)) + let is_running_on_ci = flags_ci.unwrap_or(CiEnv::is_ci()); + let dwn_ctx = DownloadContext { + path_modification_cache: path_modification_cache.clone(), + src: &src, + submodules: &build_submodules, + host_target, + patch_binaries_for_nix: build_patch_binaries_for_nix, + exec_ctx: &exec_ctx, + stage0_metadata: &stage0_metadata, + llvm_assertions, + bootstrap_cache_path: &build_bootstrap_cache_path, + is_running_on_ci, }; - config.initial_sysroot = t!(PathBuf::from_str( - command(&config.initial_rustc) + let initial_rustc = build_rustc.unwrap_or_else(|| { + download_beta_toolchain(&dwn_ctx, &out); + out.join(host_target).join("stage0").join("bin").join(exe("rustc", host_target)) + }); + + let initial_sysroot = t!(PathBuf::from_str( + command(&initial_rustc) .args(["--print", "sysroot"]) .run_in_dry_run() - .run_capture_stdout(&config) + .run_capture_stdout(&exec_ctx) .stdout() .trim() )); - config.initial_cargo_clippy = build_cargo_clippy; - - config.initial_cargo = if let Some(cargo) = build_cargo { - cargo - } else { - let dwn_ctx = DownloadContext::from(&config); - download_beta_toolchain(dwn_ctx); - config.initial_sysroot.join("bin").join(exe("cargo", config.host_target)) - }; + let initial_cargo = build_cargo.unwrap_or_else(|| { + download_beta_toolchain(&dwn_ctx, &out); + initial_sysroot.join("bin").join(exe("cargo", host_target)) + }); // NOTE: it's important this comes *after* we set `initial_rustc` just above. - if config.dry_run() { - let dir = config.out.join("tmp-dry-run"); - t!(fs::create_dir_all(&dir)); - config.out = dir; + if exec_ctx.dry_run() { + out = out.join("tmp-dry-run"); + fs::create_dir_all(&out).expect("Failed to create dry-run directory"); } - config.hosts = if let Some(hosts) = host { hosts } else { vec![config.host_target] }; - config.targets = if let Some(targets) = target { - targets - } else { - // If target is *not* configured, then default to the host - // toolchains. - config.hosts.clone() - }; - - config.nodejs = build_nodejs.map(PathBuf::from); - config.npm = build_npm.map(PathBuf::from); - config.gdb = build_gdb.map(PathBuf::from); - config.lldb = build_lldb.map(PathBuf::from); - config.python = build_python.map(PathBuf::from); - config.reuse = build_reuse.map(PathBuf::from); - config.submodules = build_submodules; - config.android_ndk = build_android_ndk; - config.bootstrap_cache_path = build_bootstrap_cache_path; - set(&mut config.low_priority, build_low_priority); - set(&mut config.compiler_docs, build_compiler_docs); - set(&mut config.library_docs_private_items, build_library_docs_private_items); - set(&mut config.docs_minification, build_docs_minification); - set(&mut config.docs, build_docs); - set(&mut config.locked_deps, build_locked_deps); - set(&mut config.full_bootstrap, build_full_bootstrap); - set(&mut config.extended, build_extended); - config.tools = build_tools; - set(&mut config.tool, build_tool); - set(&mut config.sanitizers, build_sanitizers); - set(&mut config.profiler, build_profiler); - set(&mut config.cargo_native_static, build_cargo_native_static); - set(&mut config.configure_args, build_configure_args); - set(&mut config.local_rebuild, build_local_rebuild); - set(&mut config.print_step_timings, build_print_step_timings); - set(&mut config.print_step_rusage, build_print_step_rusage); - config.patch_binaries_for_nix = build_patch_binaries_for_nix; - - // Verbose flag is a good default for `rust.verbose-tests`. - config.verbose_tests = config.is_verbose(); - - config.prefix = install_prefix.map(PathBuf::from); - config.sysconfdir = install_sysconfdir.map(PathBuf::from); - config.datadir = install_datadir.map(PathBuf::from); - config.docdir = install_docdir.map(PathBuf::from); - set(&mut config.bindir, install_bindir.map(PathBuf::from)); - config.libdir = install_libdir.map(PathBuf::from); - config.mandir = install_mandir.map(PathBuf::from); - - config.llvm_assertions = llvm_assertions.unwrap_or(false); - - let file_content = t!(fs::read_to_string(config.src.join("src/ci/channel"))); + let file_content = t!(fs::read_to_string(src.join("src/ci/channel"))); let ci_channel = file_content.trim_end(); let is_user_configured_rust_channel = match rust_channel { - Some(channel) if channel == "auto-detect" => { - config.channel = ci_channel.into(); + Some(channel_) if channel_ == "auto-detect" => { + channel = ci_channel.into(); true } - Some(channel) => { - config.channel = channel; + Some(channel_) => { + channel = channel_; true } None => false, }; - let default = config.channel == "dev"; - config.omit_git_hash = rust_omit_git_hash.unwrap_or(default); + let omit_git_hash = rust_omit_git_hash.unwrap_or(channel == "dev"); - config.rust_info = git_info(&config.exec_ctx, config.omit_git_hash, &config.src); - config.cargo_info = - git_info(&config.exec_ctx, config.omit_git_hash, &config.src.join("src/tools/cargo")); - config.rust_analyzer_info = git_info( - &config.exec_ctx, - config.omit_git_hash, - &config.src.join("src/tools/rust-analyzer"), - ); - config.clippy_info = - git_info(&config.exec_ctx, config.omit_git_hash, &config.src.join("src/tools/clippy")); - config.miri_info = - git_info(&config.exec_ctx, config.omit_git_hash, &config.src.join("src/tools/miri")); - config.rustfmt_info = - git_info(&config.exec_ctx, config.omit_git_hash, &config.src.join("src/tools/rustfmt")); - config.enzyme_info = - git_info(&config.exec_ctx, config.omit_git_hash, &config.src.join("src/tools/enzyme")); - config.in_tree_llvm_info = - git_info(&config.exec_ctx, false, &config.src.join("src/llvm-project")); - config.in_tree_gcc_info = git_info(&config.exec_ctx, false, &config.src.join("src/gcc")); - - config.vendor = build_vendor.unwrap_or( - config.rust_info.is_from_tarball() - && config.src.join("vendor").exists() - && config.src.join(".cargo/config.toml").exists(), - ); + let rust_info = git_info(&exec_ctx, omit_git_hash, &src); - if !is_user_configured_rust_channel && config.rust_info.is_from_tarball() { - config.channel = ci_channel.into(); + if !is_user_configured_rust_channel && rust_info.is_from_tarball() { + channel = ci_channel.into(); } - config.rust_profile_use = flags_rust_profile_use; - config.rust_profile_generate = flags_rust_profile_generate; - // FIXME(#133381): alt rustc builds currently do *not* have rustc debug assertions // enabled. We should not download a CI alt rustc if we need rustc to have debug // assertions (e.g. for crashes test suite). This can be changed once something like @@ -951,17 +759,32 @@ impl Config { ); } - let dwn_ctx = DownloadContext::from(&config); - config.download_rustc_commit = - download_ci_rustc_commit(dwn_ctx, rust_download_rustc, config.llvm_assertions); + let mut download_rustc_commit = + download_ci_rustc_commit(&dwn_ctx, &rust_info, rust_download_rustc, llvm_assertions); - if debug_assertions_requested && config.download_rustc_commit.is_some() { + if debug_assertions_requested && download_rustc_commit.is_some() { eprintln!( "WARN: `rust.debug-assertions = true` will prevent downloading CI rustc as alt CI \ rustc is not currently built with debug assertions." ); // We need to put this later down_ci_rustc_commit. - config.download_rustc_commit = None; + download_rustc_commit = None; + } + + // We need to override `rust.channel` if it's manually specified when using the CI rustc. + // This is because if the compiler uses a different channel than the one specified in bootstrap.toml, + // tests may fail due to using a different channel than the one used by the compiler during tests. + if let Some(commit) = &download_rustc_commit + && is_user_configured_rust_channel + { + println!( + "WARNING: `rust.download-rustc` is enabled. The `rust.channel` option will be overridden by the CI rustc's channel." + ); + + channel = + read_file_by_commit(&dwn_ctx, &rust_info, Path::new("src/ci/channel"), commit) + .trim() + .to_owned(); } if let Some(t) = toml.target { @@ -969,24 +792,22 @@ impl Config { let mut target = Target::from_triple(&triple); if let Some(ref s) = cfg.llvm_config { - if config.download_rustc_commit.is_some() - && triple == *config.host_target.triple - { + if download_rustc_commit.is_some() && triple == *host_target.triple { panic!( "setting llvm_config for the host is incompatible with download-rustc" ); } - target.llvm_config = Some(config.src.join(s)); + target.llvm_config = Some(src.join(s)); } if let Some(patches) = cfg.llvm_has_rust_patches { assert!( - config.submodules == Some(false) || cfg.llvm_config.is_some(), + build_submodules == Some(false) || cfg.llvm_config.is_some(), "use of `llvm-has-rust-patches` is restricted to cases where either submodules are disabled or llvm-config been provided" ); target.llvm_has_rust_patches = Some(patches); } if let Some(ref s) = cfg.llvm_filecheck { - target.llvm_filecheck = Some(config.src.join(s)); + target.llvm_filecheck = Some(src.join(s)); } target.llvm_libunwind = cfg.llvm_libunwind.as_ref().map(|v| { v.parse().unwrap_or_else(|_| { @@ -1023,81 +844,17 @@ impl Config { }) }); - config.target_config.insert(TargetSelection::from_user(&triple), target); + target_config.insert(TargetSelection::from_user(&triple), target); } } - if rust_optimize.as_ref().is_some_and(|v| matches!(v, RustOptimize::Bool(false))) { - eprintln!( - "WARNING: setting `optimize` to `false` is known to cause errors and \ - should be considered unsupported. Refer to `bootstrap.example.toml` \ - for more details." - ); - } - - config.rust_new_symbol_mangling = rust_new_symbol_mangling; - set(&mut config.rust_optimize_tests, rust_optimize_tests); - set(&mut config.codegen_tests, rust_codegen_tests); - set(&mut config.rust_rpath, rust_rpath); - set(&mut config.rust_strip, rust_strip); - set(&mut config.rust_frame_pointers, rust_frame_pointers); - config.rust_stack_protector = rust_stack_protector; - set(&mut config.jemalloc, rust_jemalloc); - set(&mut config.test_compare_mode, rust_test_compare_mode); - set(&mut config.backtrace, rust_backtrace); - set(&mut config.rust_dist_src, rust_dist_src); - set(&mut config.verbose_tests, rust_verbose_tests); - // in the case "false" is set explicitly, do not overwrite the command line args - if let Some(true) = rust_incremental { - config.incremental = true; - } - set(&mut config.lld_mode, rust_lld_mode); - set(&mut config.llvm_bitcode_linker_enabled, rust_llvm_bitcode_linker); - - config.rust_randomize_layout = rust_randomize_layout.unwrap_or_default(); - config.llvm_tools_enabled = rust_llvm_tools.unwrap_or(true); - - config.llvm_enzyme = config.channel == "dev" || config.channel == "nightly"; - config.rustc_default_linker = rust_default_linker; - config.musl_root = rust_musl_root.map(PathBuf::from); - config.save_toolstates = rust_save_toolstates.map(PathBuf::from); - set( - &mut config.deny_warnings, - match flags_warnings { - Warnings::Deny => Some(true), - Warnings::Warn => Some(false), - Warnings::Default => rust_deny_warnings, - }, + let llvm_from_ci = parse_download_ci_llvm( + &dwn_ctx, + &rust_info, + &download_rustc_commit, + llvm_download_ci_llvm, + llvm_assertions, ); - set(&mut config.backtrace_on_ice, rust_backtrace_on_ice); - set(&mut config.rust_verify_llvm_ir, rust_verify_llvm_ir); - config.rust_thin_lto_import_instr_limit = rust_thin_lto_import_instr_limit; - set(&mut config.rust_remap_debuginfo, rust_remap_debuginfo); - set(&mut config.control_flow_guard, rust_control_flow_guard); - set(&mut config.ehcont_guard, rust_ehcont_guard); - config.llvm_libunwind_default = - rust_llvm_libunwind.map(|v| v.parse().expect("failed to parse rust.llvm-libunwind")); - set( - &mut config.rust_codegen_backends, - rust_codegen_backends.map(|backends| parse_codegen_backends(backends, "rust")), - ); - - config.rust_codegen_units = rust_codegen_units.map(threads_from_config); - config.rust_codegen_units_std = rust_codegen_units_std.map(threads_from_config); - - if config.rust_profile_use.is_none() { - config.rust_profile_use = rust_profile_use; - } - - if config.rust_profile_generate.is_none() { - config.rust_profile_generate = rust_profile_generate; - } - - config.rust_lto = - rust_lto.as_deref().map(|value| RustcLto::from_str(value).unwrap()).unwrap_or_default(); - config.rust_validate_mir_opts = rust_validate_mir_opts; - - config.rust_optimize = rust_optimize.unwrap_or(RustOptimize::Bool(true)); // We make `x86_64-unknown-linux-gnu` use the self-contained linker by default, so we will // build our internal lld and use it as the default linker, by setting the `rust.lld` config @@ -1111,105 +868,17 @@ impl Config { // thus, disabled // - similarly, lld will not be built nor used by default when explicitly asked not to, e.g. // when the config sets `rust.lld = false` - if default_lld_opt_in_targets().contains(&config.host_target.triple.to_string()) - && config.hosts == [config.host_target] + let lld_enabled = if default_lld_opt_in_targets().contains(&host_target.triple.to_string()) + && hosts == [host_target] { - let no_llvm_config = config - .target_config - .get(&config.host_target) - .is_none_or(|target_config| target_config.llvm_config.is_none()); - let enable_lld = config.llvm_from_ci || no_llvm_config; - // Prefer the config setting in case an explicit opt-out is needed. - config.lld_enabled = rust_lld_enabled.unwrap_or(enable_lld); + let no_llvm_config = + target_config.get(&host_target).is_none_or(|config| config.llvm_config.is_none()); + rust_lld_enabled.unwrap_or(llvm_from_ci || no_llvm_config) } else { - set(&mut config.lld_enabled, rust_lld_enabled); - } - - let default_std_features = BTreeSet::from([String::from("panic-unwind")]); - config.rust_std_features = rust_std_features.unwrap_or(default_std_features); - - let default = rust_debug == Some(true); - config.rustc_debug_assertions = rust_rustc_debug_assertions.unwrap_or(default); - config.std_debug_assertions = - rust_std_debug_assertions.unwrap_or(config.rustc_debug_assertions); - config.tools_debug_assertions = - rust_tools_debug_assertions.unwrap_or(config.rustc_debug_assertions); - config.rust_overflow_checks = rust_overflow_checks.unwrap_or(default); - config.rust_overflow_checks_std = - rust_overflow_checks_std.unwrap_or(config.rust_overflow_checks); - - config.rust_debug_logging = rust_debug_logging.unwrap_or(config.rustc_debug_assertions); - - let with_defaults = |debuginfo_level_specific: Option<_>| { - debuginfo_level_specific.or(rust_debuginfo_level).unwrap_or( - if rust_debug == Some(true) { - DebuginfoLevel::Limited - } else { - DebuginfoLevel::None - }, - ) + rust_lld_enabled.unwrap_or(false) }; - config.rust_debuginfo_level_rustc = with_defaults(rust_debuginfo_level_rustc); - config.rust_debuginfo_level_std = with_defaults(rust_debuginfo_level_std); - config.rust_debuginfo_level_tools = with_defaults(rust_debuginfo_level_tools); - config.rust_debuginfo_level_tests = - rust_debuginfo_level_tests.unwrap_or(DebuginfoLevel::None); - - config.reproducible_artifacts = flags_reproducible_artifact; - config.description = build_description; - // We need to override `rust.channel` if it's manually specified when using the CI rustc. - // This is because if the compiler uses a different channel than the one specified in bootstrap.toml, - // tests may fail due to using a different channel than the one used by the compiler during tests. - if let Some(commit) = &config.download_rustc_commit - && is_user_configured_rust_channel - { - println!( - "WARNING: `rust.download-rustc` is enabled. The `rust.channel` option will be overridden by the CI rustc's channel." - ); - - let dwn_ctx = DownloadContext::from(&config); - let channel = - read_file_by_commit(dwn_ctx, Path::new("src/ci/channel"), commit).trim().to_owned(); - - config.channel = channel; - } - - set(&mut config.ninja_in_file, llvm_ninja); - set(&mut config.llvm_optimize, llvm_optimize); - set(&mut config.llvm_thin_lto, llvm_thin_lto); - set(&mut config.llvm_release_debuginfo, llvm_release_debuginfo); - set(&mut config.llvm_static_stdcpp, llvm_static_libstdcpp); - set(&mut config.llvm_libzstd, llvm_libzstd); - if let Some(v) = llvm_link_shared { - config.llvm_link_shared.set(Some(v)); - } - config.llvm_targets.clone_from(&llvm_targets); - config.llvm_experimental_targets.clone_from(&llvm_experimental_targets); - config.llvm_link_jobs = llvm_link_jobs; - config.llvm_version_suffix.clone_from(&llvm_version_suffix); - config.llvm_clang_cl.clone_from(&llvm_clang_cl); - config.llvm_tests = llvm_tests.unwrap_or_default(); - config.llvm_enzyme = llvm_enzyme.unwrap_or_default(); - config.llvm_plugins = llvm_plugin.unwrap_or_default(); - - config.llvm_cflags.clone_from(&llvm_cflags); - config.llvm_cxxflags.clone_from(&llvm_cxxflags); - config.llvm_ldflags.clone_from(&llvm_ldflags); - set(&mut config.llvm_use_libcxx, llvm_use_libcxx); - config.llvm_use_linker.clone_from(&llvm_use_linker); - config.llvm_allow_old_toolchain = llvm_allow_old_toolchain.unwrap_or(false); - config.llvm_offload = llvm_offload.unwrap_or(false); - config.llvm_polly = llvm_polly.unwrap_or(false); - config.llvm_clang = llvm_clang.unwrap_or(false); - config.llvm_enable_warnings = llvm_enable_warnings.unwrap_or(false); - config.llvm_build_config = llvm_build_config.clone().unwrap_or(Default::default()); - - let dwn_ctx = DownloadContext::from(&config); - config.llvm_from_ci = - parse_download_ci_llvm(dwn_ctx, llvm_download_ci_llvm, config.llvm_assertions); - - if config.llvm_from_ci { + if llvm_from_ci { let warn = |option: &str| { println!( "WARNING: `{option}` will only be used on `compiler/rustc_llvm` build, not for the LLVM build." @@ -1244,66 +913,21 @@ impl Config { } } - if !config.llvm_from_ci && config.llvm_thin_lto && llvm_link_shared.is_none() { - // If we're building with ThinLTO on, by default we want to link - // to LLVM shared, to avoid re-doing ThinLTO (which happens in - // the link step) with each stage. - config.llvm_link_shared.set(Some(true)); - } - - config.gcc_ci_mode = match gcc_download_ci_gcc { - Some(value) => match value { - true => GccCiMode::DownloadFromCi, - false => GccCiMode::BuildLocally, - }, - None => GccCiMode::default(), - }; - - match build_ccache { - Some(StringOrBool::String(ref s)) => config.ccache = Some(s.to_string()), - Some(StringOrBool::Bool(true)) => { - config.ccache = Some("ccache".to_string()); - } - Some(StringOrBool::Bool(false)) | None => {} - } - - if config.llvm_from_ci { - let triple = &config.host_target.triple; - let dwn_ctx = DownloadContext::from(&config); - let ci_llvm_bin = ci_llvm_root(dwn_ctx).join("bin"); - let build_target = config - .target_config - .entry(config.host_target) - .or_insert_with(|| Target::from_triple(triple)); - + if llvm_from_ci { + let triple = &host_target.triple; + let ci_llvm_bin = ci_llvm_root(&dwn_ctx, llvm_from_ci, &out).join("bin"); + let build_target = + target_config.entry(host_target).or_insert_with(|| Target::from_triple(triple)); check_ci_llvm!(build_target.llvm_config); check_ci_llvm!(build_target.llvm_filecheck); - build_target.llvm_config = - Some(ci_llvm_bin.join(exe("llvm-config", config.host_target))); - build_target.llvm_filecheck = - Some(ci_llvm_bin.join(exe("FileCheck", config.host_target))); + build_target.llvm_config = Some(ci_llvm_bin.join(exe("llvm-config", host_target))); + build_target.llvm_filecheck = Some(ci_llvm_bin.join(exe("FileCheck", host_target))); } - config.dist_sign_folder = dist_sign_folder.map(PathBuf::from); - config.dist_upload_addr = dist_upload_addr; - config.dist_compression_formats = dist_compression_formats; - set(&mut config.dist_compression_profile, dist_compression_profile); - set(&mut config.rust_dist_src, dist_src_tarball); - set(&mut config.dist_include_mingw_linker, dist_include_mingw_linker); - config.dist_vendor = dist_vendor.unwrap_or_else(|| { - // If we're building from git or tarball sources, enable it by default. - config.rust_info.is_managed_git_subrepository() || config.rust_info.is_from_tarball() - }); - - config.initial_rustfmt = if let Some(r) = build_rustfmt { - Some(r) - } else { - let dwn_ctx = DownloadContext::from(&config); - maybe_download_rustfmt(dwn_ctx) - }; + let initial_rustfmt = build_rustfmt.or_else(|| maybe_download_rustfmt(&dwn_ctx, &out)); - if matches!(config.lld_mode, LldMode::SelfContained) - && !config.lld_enabled + if matches!(rust_lld_mode.unwrap_or_default(), LldMode::SelfContained) + && !lld_enabled && flags_stage.unwrap_or(0) > 0 { panic!( @@ -1311,29 +935,13 @@ impl Config { ); } - let dwn_ctx = DownloadContext::from(&config); - if config.lld_enabled && is_system_llvm(dwn_ctx, config.host_target) { + if lld_enabled && is_system_llvm(&dwn_ctx, &target_config, llvm_from_ci, host_target) { panic!("Cannot enable LLD with `rust.lld = true` when using external llvm-config."); } - config.optimized_compiler_builtins = - build_optimized_compiler_builtins.unwrap_or(config.channel != "dev"); - config.compiletest_diff_tool = build_compiletest_diff_tool; - config.compiletest_use_stage0_libtest = - build_compiletest_use_stage0_libtest.unwrap_or(true); - config.tidy_extra_checks = build_tidy_extra_checks; - - let download_rustc = config.download_rustc_commit.is_some(); - config.explicit_stage_from_cli = flags_stage.is_some(); - config.explicit_stage_from_config = build_test_stage.is_some() - || build_build_stage.is_some() - || build_doc_stage.is_some() - || build_dist_stage.is_some() - || build_install_stage.is_some() - || build_check_stage.is_some() - || build_bench_stage.is_some(); + let download_rustc = download_rustc_commit.is_some(); - config.stage = match config.cmd { + let stage = match flags_cmd { Subcommand::Check { .. } => flags_stage.or(build_check_stage).unwrap_or(1), Subcommand::Clippy { .. } | Subcommand::Fix => { flags_stage.or(build_check_stage).unwrap_or(1) @@ -1362,7 +970,7 @@ impl Config { }; // Now check that the selected stage makes sense, and if not, print a warning and end - match (config.stage, &config.cmd) { + match (stage, &flags_cmd) { (0, Subcommand::Build { .. }) => { eprintln!("ERROR: cannot build anything on stage 0. Use at least stage 1."); exit!(1); @@ -1379,10 +987,18 @@ impl Config { eprintln!("ERROR: cannot run clippy on stage 0. Use at least stage 1."); exit!(1); } + (0, Subcommand::Dist) => { + eprintln!("ERROR: cannot dist anything on stage 0. Use at least stage 1."); + exit!(1); + } + (0, Subcommand::Install) => { + eprintln!("ERROR: cannot install anything on stage 0. Use at least stage 1."); + exit!(1); + } _ => {} } - if config.compile_time_deps && !matches!(config.cmd, Subcommand::Check { .. }) { + if flags_compile_time_deps && !matches!(flags_cmd, Subcommand::Check { .. }) { eprintln!( "WARNING: Can't use --compile-time-deps with any subcommand other than check." ); @@ -1391,8 +1007,8 @@ impl Config { // CI should always run stage 2 builds, unless it specifically states otherwise #[cfg(not(test))] - if flags_stage.is_none() && config.is_running_on_ci { - match config.cmd { + if flags_stage.is_none() && is_running_on_ci { + match flags_cmd { Subcommand::Test { .. } | Subcommand::Miri { .. } | Subcommand::Doc { .. } @@ -1401,9 +1017,8 @@ impl Config { | Subcommand::Dist | Subcommand::Install => { assert_eq!( - config.stage, 2, - "x.py should be run with `--stage 2` on CI, but was run with `--stage {}`", - config.stage, + stage, 2, + "x.py should be run with `--stage 2` on CI, but was run with `--stage {stage}`", ); } Subcommand::Clean { .. } @@ -1418,7 +1033,300 @@ impl Config { } } - config + let with_defaults = |debuginfo_level_specific: Option<_>| { + debuginfo_level_specific.or(rust_debuginfo_level).unwrap_or( + if rust_debug == Some(true) { + DebuginfoLevel::Limited + } else { + DebuginfoLevel::None + }, + ) + }; + + let ccache = match build_ccache { + Some(StringOrBool::String(s)) => Some(s), + Some(StringOrBool::Bool(true)) => Some("ccache".to_string()), + _ => None, + }; + + let explicit_stage_from_config = build_test_stage.is_some() + || build_build_stage.is_some() + || build_doc_stage.is_some() + || build_dist_stage.is_some() + || build_install_stage.is_some() + || build_check_stage.is_some() + || build_bench_stage.is_some(); + + let deny_warnings = match flags_warnings { + Warnings::Deny => true, + Warnings::Warn => false, + Warnings::Default => rust_deny_warnings.unwrap_or(true), + }; + + let gcc_ci_mode = match gcc_download_ci_gcc { + Some(value) => match value { + true => GccCiMode::DownloadFromCi, + false => GccCiMode::BuildLocally, + }, + None => GccCiMode::default(), + }; + + let targets = flags_target + .map(|TargetSelectionList(targets)| targets) + .or_else(|| { + build_target.map(|t| t.iter().map(|t| TargetSelection::from_user(t)).collect()) + }) + .unwrap_or_else(|| hosts.clone()); + + #[allow(clippy::map_identity)] + let skip = flags_skip + .into_iter() + .chain(flags_exclude) + .chain(build_exclude.unwrap_or_default()) + .map(|p| { + // Never return top-level path here as it would break `--skip` + // logic on rustc's internal test framework which is utilized by compiletest. + #[cfg(windows)] + { + PathBuf::from(p.to_string_lossy().replace('/', "\\")) + } + #[cfg(not(windows))] + { + p + } + }) + .collect(); + + let cargo_info = git_info(&exec_ctx, omit_git_hash, &src.join("src/tools/cargo")); + let clippy_info = git_info(&exec_ctx, omit_git_hash, &src.join("src/tools/clippy")); + let in_tree_gcc_info = git_info(&exec_ctx, false, &src.join("src/gcc")); + let in_tree_llvm_info = git_info(&exec_ctx, false, &src.join("src/llvm-project")); + let enzyme_info = git_info(&exec_ctx, omit_git_hash, &src.join("src/tools/enzyme")); + let miri_info = git_info(&exec_ctx, omit_git_hash, &src.join("src/tools/miri")); + let rust_analyzer_info = + git_info(&exec_ctx, omit_git_hash, &src.join("src/tools/rust-analyzer")); + let rustfmt_info = git_info(&exec_ctx, omit_git_hash, &src.join("src/tools/rustfmt")); + + let optimized_compiler_builtins = + build_optimized_compiler_builtins.unwrap_or(if channel == "dev" { + CompilerBuiltins::BuildRustOnly + } else { + CompilerBuiltins::BuildLLVMFuncs + }); + let vendor = build_vendor.unwrap_or( + rust_info.is_from_tarball() + && src.join("vendor").exists() + && src.join(".cargo/config.toml").exists(), + ); + let verbose_tests = rust_verbose_tests.unwrap_or(exec_ctx.is_verbose()); + + Config { + // tidy-alphabetical-start + android_ndk: build_android_ndk, + backtrace: rust_backtrace.unwrap_or(true), + backtrace_on_ice: rust_backtrace_on_ice.unwrap_or(false), + bindir: install_bindir.map(PathBuf::from).unwrap_or("bin".into()), + bootstrap_cache_path: build_bootstrap_cache_path, + bypass_bootstrap_lock: flags_bypass_bootstrap_lock, + cargo_info, + cargo_native_static: build_cargo_native_static.unwrap_or(false), + ccache, + change_id: toml.change_id.inner, + channel, + clippy_info, + cmd: flags_cmd, + codegen_tests: rust_codegen_tests.unwrap_or(true), + color: flags_color, + compile_time_deps: flags_compile_time_deps, + compiler_docs: build_compiler_docs.unwrap_or(false), + compiletest_allow_stage0: build_compiletest_allow_stage0.unwrap_or(false), + compiletest_diff_tool: build_compiletest_diff_tool, + compiletest_use_stage0_libtest: build_compiletest_use_stage0_libtest.unwrap_or(true), + config: toml_path, + configure_args: build_configure_args.unwrap_or_default(), + control_flow_guard: rust_control_flow_guard.unwrap_or(false), + datadir: install_datadir.map(PathBuf::from), + deny_warnings, + description: build_description, + dist_compression_formats, + dist_compression_profile: dist_compression_profile.unwrap_or("fast".into()), + dist_include_mingw_linker: dist_include_mingw_linker.unwrap_or(true), + dist_sign_folder: dist_sign_folder.map(PathBuf::from), + dist_upload_addr, + dist_vendor: dist_vendor.unwrap_or_else(|| { + // If we're building from git or tarball sources, enable it by default. + rust_info.is_managed_git_subrepository() || rust_info.is_from_tarball() + }), + docdir: install_docdir.map(PathBuf::from), + docs: build_docs.unwrap_or(true), + docs_minification: build_docs_minification.unwrap_or(true), + download_rustc_commit, + dump_bootstrap_shims: flags_dump_bootstrap_shims, + ehcont_guard: rust_ehcont_guard.unwrap_or(false), + enable_bolt_settings: flags_enable_bolt_settings, + enzyme_info, + exec_ctx, + explicit_stage_from_cli: flags_stage.is_some(), + explicit_stage_from_config, + extended: build_extended.unwrap_or(false), + free_args: flags_free_args, + full_bootstrap: build_full_bootstrap.unwrap_or(false), + gcc_ci_mode, + gdb: build_gdb.map(PathBuf::from), + host_target, + hosts, + in_tree_gcc_info, + in_tree_llvm_info, + include_default_paths: flags_include_default_paths, + incremental: flags_incremental || rust_incremental == Some(true), + initial_cargo, + initial_cargo_clippy: build_cargo_clippy, + initial_rustc, + initial_rustfmt, + initial_sysroot, + is_running_on_ci, + jemalloc: rust_jemalloc.unwrap_or(false), + jobs: Some(threads_from_config(flags_jobs.or(build_jobs).unwrap_or(0))), + json_output: flags_json_output, + keep_stage: flags_keep_stage, + keep_stage_std: flags_keep_stage_std, + libdir: install_libdir.map(PathBuf::from), + library_docs_private_items: build_library_docs_private_items.unwrap_or(false), + lld_enabled, + lld_mode: rust_lld_mode.unwrap_or_default(), + lldb: build_lldb.map(PathBuf::from), + llvm_allow_old_toolchain: llvm_allow_old_toolchain.unwrap_or(false), + llvm_assertions, + llvm_bitcode_linker_enabled: rust_llvm_bitcode_linker.unwrap_or(false), + llvm_build_config: llvm_build_config.clone().unwrap_or(Default::default()), + llvm_cflags, + llvm_clang: llvm_clang.unwrap_or(false), + llvm_clang_cl, + llvm_cxxflags, + llvm_enable_warnings: llvm_enable_warnings.unwrap_or(false), + llvm_enzyme: llvm_enzyme.unwrap_or(false), + llvm_experimental_targets, + llvm_from_ci, + llvm_ldflags, + llvm_libunwind_default: rust_llvm_libunwind + .map(|v| v.parse().expect("failed to parse rust.llvm-libunwind")), + llvm_libzstd: llvm_libzstd.unwrap_or(false), + llvm_link_jobs, + // If we're building with ThinLTO on, by default we want to link + // to LLVM shared, to avoid re-doing ThinLTO (which happens in + // the link step) with each stage. + llvm_link_shared: Cell::new( + llvm_link_shared + .or((!llvm_from_ci && llvm_thin_lto.unwrap_or(false)).then_some(true)), + ), + llvm_offload: llvm_offload.unwrap_or(false), + llvm_optimize: llvm_optimize.unwrap_or(true), + llvm_plugins: llvm_plugin.unwrap_or(false), + llvm_polly: llvm_polly.unwrap_or(false), + llvm_profile_generate: flags_llvm_profile_generate, + llvm_profile_use: flags_llvm_profile_use, + llvm_release_debuginfo: llvm_release_debuginfo.unwrap_or(false), + llvm_static_stdcpp: llvm_static_libstdcpp.unwrap_or(false), + llvm_targets, + llvm_tests: llvm_tests.unwrap_or(false), + llvm_thin_lto: llvm_thin_lto.unwrap_or(false), + llvm_tools_enabled: rust_llvm_tools.unwrap_or(true), + llvm_use_libcxx: llvm_use_libcxx.unwrap_or(false), + llvm_use_linker, + llvm_version_suffix, + local_rebuild: build_local_rebuild.unwrap_or(false), + locked_deps: build_locked_deps.unwrap_or(false), + low_priority: build_low_priority.unwrap_or(false), + mandir: install_mandir.map(PathBuf::from), + miri_info, + musl_root: rust_musl_root.map(PathBuf::from), + ninja_in_file: llvm_ninja.unwrap_or(true), + nodejs: build_nodejs.map(PathBuf::from), + npm: build_npm.map(PathBuf::from), + omit_git_hash, + on_fail: flags_on_fail, + optimized_compiler_builtins, + out, + patch_binaries_for_nix: build_patch_binaries_for_nix, + path_modification_cache, + paths: flags_paths, + prefix: install_prefix.map(PathBuf::from), + print_step_rusage: build_print_step_rusage.unwrap_or(false), + print_step_timings: build_print_step_timings.unwrap_or(false), + profiler: build_profiler.unwrap_or(false), + python: build_python.map(PathBuf::from), + reproducible_artifacts: flags_reproducible_artifact, + reuse: build_reuse.map(PathBuf::from), + rust_analyzer_info, + rust_codegen_backends: rust_codegen_backends + .map(|backends| parse_codegen_backends(backends, "rust")) + .unwrap_or(vec![CodegenBackendKind::Llvm]), + rust_codegen_units: rust_codegen_units.map(threads_from_config), + rust_codegen_units_std: rust_codegen_units_std.map(threads_from_config), + rust_debug_logging: rust_debug_logging + .or(rust_rustc_debug_assertions) + .unwrap_or(rust_debug == Some(true)), + rust_debuginfo_level_rustc: with_defaults(rust_debuginfo_level_rustc), + rust_debuginfo_level_std: with_defaults(rust_debuginfo_level_std), + rust_debuginfo_level_tests: rust_debuginfo_level_tests.unwrap_or(DebuginfoLevel::None), + rust_debuginfo_level_tools: with_defaults(rust_debuginfo_level_tools), + rust_dist_src: dist_src_tarball.unwrap_or_else(|| rust_dist_src.unwrap_or(true)), + rust_frame_pointers: rust_frame_pointers.unwrap_or(false), + rust_info, + rust_lto: rust_lto + .as_deref() + .map(|value| RustcLto::from_str(value).unwrap()) + .unwrap_or_default(), + rust_new_symbol_mangling, + rust_optimize: rust_optimize.unwrap_or(RustOptimize::Bool(true)), + rust_optimize_tests: rust_optimize_tests.unwrap_or(true), + rust_overflow_checks: rust_overflow_checks.unwrap_or(rust_debug == Some(true)), + rust_overflow_checks_std: rust_overflow_checks_std + .or(rust_overflow_checks) + .unwrap_or(rust_debug == Some(true)), + rust_profile_generate: flags_rust_profile_generate.or(rust_profile_generate), + rust_profile_use: flags_rust_profile_use.or(rust_profile_use), + rust_randomize_layout: rust_randomize_layout.unwrap_or(false), + rust_remap_debuginfo: rust_remap_debuginfo.unwrap_or(false), + rust_rpath: rust_rpath.unwrap_or(true), + rust_stack_protector, + rust_std_features: rust_std_features + .unwrap_or(BTreeSet::from([String::from("panic-unwind")])), + rust_strip: rust_strip.unwrap_or(false), + rust_thin_lto_import_instr_limit, + rust_validate_mir_opts, + rust_verify_llvm_ir: rust_verify_llvm_ir.unwrap_or(false), + rustc_debug_assertions: rust_rustc_debug_assertions.unwrap_or(rust_debug == Some(true)), + rustc_default_linker: rust_default_linker, + rustc_error_format: flags_rustc_error_format, + rustfmt_info, + sanitizers: build_sanitizers.unwrap_or(false), + save_toolstates: rust_save_toolstates.map(PathBuf::from), + skip, + skip_std_check_if_no_download_rustc: flags_skip_std_check_if_no_download_rustc, + src, + stage, + stage0_metadata, + std_debug_assertions: rust_std_debug_assertions + .or(rust_rustc_debug_assertions) + .unwrap_or(rust_debug == Some(true)), + stderr_is_tty: std::io::stderr().is_terminal(), + stdout_is_tty: std::io::stdout().is_terminal(), + submodules: build_submodules, + sysconfdir: install_sysconfdir.map(PathBuf::from), + target_config, + targets, + test_compare_mode: rust_test_compare_mode.unwrap_or(false), + tidy_extra_checks: build_tidy_extra_checks, + tool: build_tool.unwrap_or_default(), + tools: build_tools, + tools_debug_assertions: rust_tools_debug_assertions + .or(rust_rustc_debug_assertions) + .unwrap_or(rust_debug == Some(true)), + vendor, + verbose_tests, + // tidy-alphabetical-end + } } pub fn dry_run(&self) -> bool { @@ -1456,7 +1364,7 @@ impl Config { /// Returns the content of the given file at a specific commit. pub(crate) fn read_file_by_commit(&self, file: &Path, commit: &str) -> String { let dwn_ctx = DownloadContext::from(self); - read_file_by_commit(dwn_ctx, file, commit) + read_file_by_commit(dwn_ctx, &self.rust_info, file, commit) } /// Bootstrap embeds a version number into the name of shared libraries it uploads in CI. @@ -1528,7 +1436,7 @@ impl Config { /// The absolute path to the downloaded LLVM artifacts. pub(crate) fn ci_llvm_root(&self) -> PathBuf { let dwn_ctx = DownloadContext::from(self); - ci_llvm_root(dwn_ctx) + ci_llvm_root(dwn_ctx, self.llvm_from_ci, &self.out) } /// Directory where the extracted `rustc-dev` component is stored. @@ -1692,7 +1600,7 @@ impl Config { )] pub(crate) fn update_submodule(&self, relative_path: &str) { let dwn_ctx = DownloadContext::from(self); - update_submodule(dwn_ctx, relative_path); + update_submodule(dwn_ctx, &self.rust_info, relative_path); } /// Returns true if any of the `paths` have been modified locally. @@ -1755,8 +1663,8 @@ impl Config { /// Returns the codegen backend that should be configured as the *default* codegen backend /// for a rustc compiled by bootstrap. - pub fn default_codegen_backend(&self, target: TargetSelection) -> Option<CodegenBackendKind> { - self.enabled_codegen_backends(target).first().cloned() + pub fn default_codegen_backend(&self, target: TargetSelection) -> Option<&CodegenBackendKind> { + self.enabled_codegen_backends(target).first() } pub fn jemalloc(&self, target: TargetSelection) -> bool { @@ -1767,11 +1675,11 @@ impl Config { self.target_config.get(&target).and_then(|t| t.rpath).unwrap_or(self.rust_rpath) } - pub fn optimized_compiler_builtins(&self, target: TargetSelection) -> bool { + pub fn optimized_compiler_builtins(&self, target: TargetSelection) -> &CompilerBuiltins { self.target_config .get(&target) - .and_then(|t| t.optimized_compiler_builtins) - .unwrap_or(self.optimized_compiler_builtins) + .and_then(|t| t.optimized_compiler_builtins.as_ref()) + .unwrap_or(&self.optimized_compiler_builtins) } pub fn llvm_enabled(&self, target: TargetSelection) -> bool { @@ -1808,7 +1716,7 @@ impl Config { /// NOTE: this is not the same as `!is_rust_llvm` when `llvm_has_patches` is set. pub fn is_system_llvm(&self, target: TargetSelection) -> bool { let dwn_ctx = DownloadContext::from(self); - is_system_llvm(dwn_ctx, target) + is_system_llvm(dwn_ctx, &self.target_config, self.llvm_from_ci, target) } /// Returns `true` if this is our custom, patched, version of LLVM. @@ -2102,6 +2010,7 @@ pub fn check_stage0_version( pub fn download_ci_rustc_commit<'a>( dwn_ctx: impl AsRef<DownloadContext<'a>>, + rust_info: &channel::GitInfo, download_rustc: Option<StringOrBool>, llvm_assertions: bool, ) -> Option<String> { @@ -2121,7 +2030,7 @@ pub fn download_ci_rustc_commit<'a>( None | Some(StringOrBool::Bool(false)) => return None, Some(StringOrBool::Bool(true)) => false, Some(StringOrBool::String(s)) if s == "if-unchanged" => { - if !dwn_ctx.rust_info.is_managed_git_subrepository() { + if !rust_info.is_managed_git_subrepository() { println!( "ERROR: `download-rustc=if-unchanged` is only compatible with Git managed sources." ); @@ -2135,7 +2044,7 @@ pub fn download_ci_rustc_commit<'a>( } }; - let commit = if dwn_ctx.rust_info.is_managed_git_subrepository() { + let commit = if rust_info.is_managed_git_subrepository() { // Look for a version to compare to based on the current commit. // Only commits merged by bors will have CI artifacts. let freshness = check_path_modifications_(dwn_ctx, RUSTC_IF_UNCHANGED_ALLOWED_PATHS); @@ -2209,6 +2118,8 @@ pub fn git_config(stage0_metadata: &build_helper::stage0_parser::Stage0) -> GitC pub fn parse_download_ci_llvm<'a>( dwn_ctx: impl AsRef<DownloadContext<'a>>, + rust_info: &channel::GitInfo, + download_rustc_commit: &Option<String>, download_ci_llvm: Option<StringOrBool>, asserts: bool, ) -> bool { @@ -2224,7 +2135,7 @@ pub fn parse_download_ci_llvm<'a>( let download_ci_llvm = download_ci_llvm.unwrap_or(default); let if_unchanged = || { - if dwn_ctx.rust_info.is_from_tarball() { + if rust_info.is_from_tarball() { // Git is needed for running "if-unchanged" logic. println!("ERROR: 'if-unchanged' is only compatible with Git managed sources."); crate::exit!(1); @@ -2232,7 +2143,7 @@ pub fn parse_download_ci_llvm<'a>( // Fetching the LLVM submodule is unnecessary for self-tests. #[cfg(not(test))] - update_submodule(dwn_ctx, "src/llvm-project"); + update_submodule(dwn_ctx, rust_info, "src/llvm-project"); // Check for untracked changes in `src/llvm-project` and other important places. let has_changes = has_changes_from_upstream(dwn_ctx, LLVM_INVALIDATION_PATHS); @@ -2247,7 +2158,7 @@ pub fn parse_download_ci_llvm<'a>( match download_ci_llvm { StringOrBool::Bool(b) => { - if !b && dwn_ctx.download_rustc_commit.is_some() { + if !b && download_rustc_commit.is_some() { panic!( "`llvm.download-ci-llvm` cannot be set to `false` if `rust.download-rustc` is set to `true` or `if-unchanged`." ); @@ -2290,9 +2201,13 @@ pub fn has_changes_from_upstream<'a>( fields(relative_path = ?relative_path), ), )] -pub(crate) fn update_submodule<'a>(dwn_ctx: impl AsRef<DownloadContext<'a>>, relative_path: &str) { +pub(crate) fn update_submodule<'a>( + dwn_ctx: impl AsRef<DownloadContext<'a>>, + rust_info: &channel::GitInfo, + relative_path: &str, +) { let dwn_ctx = dwn_ctx.as_ref(); - if dwn_ctx.rust_info.is_from_tarball() || !submodules_(dwn_ctx.submodules, dwn_ctx.rust_info) { + if rust_info.is_from_tarball() || !submodules_(dwn_ctx.submodules, rust_info) { return; } @@ -2421,12 +2336,14 @@ pub fn submodules_(submodules: &Option<bool>, rust_info: &channel::GitInfo) -> b /// NOTE: this is not the same as `!is_rust_llvm` when `llvm_has_patches` is set. pub fn is_system_llvm<'a>( dwn_ctx: impl AsRef<DownloadContext<'a>>, + target_config: &HashMap<TargetSelection, Target>, + llvm_from_ci: bool, target: TargetSelection, ) -> bool { let dwn_ctx = dwn_ctx.as_ref(); - match dwn_ctx.target_config.get(&target) { + match target_config.get(&target) { Some(Target { llvm_config: Some(_), .. }) => { - let ci_llvm = dwn_ctx.llvm_from_ci && is_host_target(&dwn_ctx.host_target, &target); + let ci_llvm = llvm_from_ci && is_host_target(&dwn_ctx.host_target, &target); !ci_llvm } // We're building from the in-tree src/llvm-project sources. @@ -2439,21 +2356,26 @@ pub fn is_host_target(host_target: &TargetSelection, target: &TargetSelection) - host_target == target } -pub(crate) fn ci_llvm_root<'a>(dwn_ctx: impl AsRef<DownloadContext<'a>>) -> PathBuf { +pub(crate) fn ci_llvm_root<'a>( + dwn_ctx: impl AsRef<DownloadContext<'a>>, + llvm_from_ci: bool, + out: &Path, +) -> PathBuf { let dwn_ctx = dwn_ctx.as_ref(); - assert!(dwn_ctx.llvm_from_ci); - dwn_ctx.out.join(dwn_ctx.host_target).join("ci-llvm") + assert!(llvm_from_ci); + out.join(dwn_ctx.host_target).join("ci-llvm") } /// Returns the content of the given file at a specific commit. pub(crate) fn read_file_by_commit<'a>( dwn_ctx: impl AsRef<DownloadContext<'a>>, + rust_info: &channel::GitInfo, file: &Path, commit: &str, ) -> String { let dwn_ctx = dwn_ctx.as_ref(); assert!( - dwn_ctx.rust_info.is_managed_git_subrepository(), + rust_info.is_managed_git_subrepository(), "`Config::read_file_by_commit` is not supported in non-git sources." ); diff --git a/src/bootstrap/src/core/config/flags.rs b/src/bootstrap/src/core/config/flags.rs index 17bfb388280..c01b71b9260 100644 --- a/src/bootstrap/src/core/config/flags.rs +++ b/src/bootstrap/src/core/config/flags.rs @@ -15,7 +15,7 @@ use crate::core::build_steps::setup::Profile; use crate::core::builder::{Builder, Kind}; use crate::core::config::Config; use crate::core::config::target_selection::{TargetSelectionList, target_selection_list}; -use crate::{Build, DocTests}; +use crate::{Build, CodegenBackendKind, DocTests}; #[derive(Copy, Clone, Default, Debug, ValueEnum)] pub enum Color { @@ -419,6 +419,9 @@ pub enum Subcommand { #[arg(long)] /// don't capture stdout/stderr of tests no_capture: bool, + #[arg(long)] + /// Use a different codegen backend when running tests. + test_codegen_backend: Option<CodegenBackendKind>, }, /// Build and run some test suites *in Miri* Miri { @@ -658,6 +661,13 @@ impl Subcommand { _ => vec![], } } + + pub fn test_codegen_backend(&self) -> Option<&CodegenBackendKind> { + match self { + Subcommand::Test { test_codegen_backend, .. } => test_codegen_backend.as_ref(), + _ => None, + } + } } /// Returns the shell completion for a given shell, if the result differs from the current diff --git a/src/bootstrap/src/core/config/mod.rs b/src/bootstrap/src/core/config/mod.rs index 285d20917e7..5999348a7fe 100644 --- a/src/bootstrap/src/core/config/mod.rs +++ b/src/bootstrap/src/core/config/mod.rs @@ -218,6 +218,33 @@ impl<T> Merge for Option<T> { } } +#[derive(Clone, Debug, Default, Eq, PartialEq)] +pub enum CompilerBuiltins { + #[default] + // Only build native rust intrinsic compiler functions. + BuildRustOnly, + // Some intrinsic functions have a C implementation provided by LLVM's + // compiler-rt builtins library. Build them from the LLVM source included + // with Rust. + BuildLLVMFuncs, + // Similar to BuildLLVMFuncs, but specify a path to an existing library + // containing LLVM's compiler-rt builtins instead of compiling them. + LinkLLVMBuiltinsLib(String), +} + +impl<'de> Deserialize<'de> for CompilerBuiltins { + fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> + where + D: Deserializer<'de>, + { + Ok(match Deserialize::deserialize(deserializer)? { + StringOrBool::Bool(false) => Self::BuildRustOnly, + StringOrBool::Bool(true) => Self::BuildLLVMFuncs, + StringOrBool::String(path) => Self::LinkLLVMBuiltinsLib(path), + }) + } +} + #[derive(Copy, Clone, Default, Debug, Eq, PartialEq)] pub enum DebuginfoLevel { #[default] @@ -324,7 +351,7 @@ impl FromStr for LlvmLibunwind { } } -#[derive(Debug, Default, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)] +#[derive(Debug, Default, Copy, Clone, PartialEq, Eq, Hash)] pub enum SplitDebuginfo { Packed, Unpacked, @@ -402,12 +429,6 @@ pub enum GccCiMode { DownloadFromCi, } -pub fn set<T>(field: &mut T, val: Option<T>) { - if let Some(v) = val { - *field = v; - } -} - pub fn threads_from_config(v: u32) -> u32 { match v { 0 => std::thread::available_parallelism().map_or(1, std::num::NonZeroUsize::get) as u32, diff --git a/src/bootstrap/src/core/config/target_selection.rs b/src/bootstrap/src/core/config/target_selection.rs index ebd3fe7a8c6..40b63a7f9c7 100644 --- a/src/bootstrap/src/core/config/target_selection.rs +++ b/src/bootstrap/src/core/config/target_selection.rs @@ -14,7 +14,7 @@ pub struct TargetSelection { } /// Newtype over `Vec<TargetSelection>` so we can implement custom parsing logic -#[derive(Clone, Default, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)] +#[derive(Clone, Default, PartialEq, Eq, Hash, Debug)] pub struct TargetSelectionList(pub Vec<TargetSelection>); pub fn target_selection_list(s: &str) -> Result<TargetSelectionList, String> { diff --git a/src/bootstrap/src/core/config/tests.rs b/src/bootstrap/src/core/config/tests.rs index 50eba12aba7..e93525fbd09 100644 --- a/src/bootstrap/src/core/config/tests.rs +++ b/src/bootstrap/src/core/config/tests.rs @@ -17,7 +17,7 @@ use crate::core::build_steps::clippy::{LintConfig, get_clippy_rules_in_order}; use crate::core::build_steps::llvm; use crate::core::build_steps::llvm::LLVM_INVALIDATION_PATHS; use crate::core::config::toml::TomlConfig; -use crate::core::config::{LldMode, Target, TargetSelection}; +use crate::core::config::{CompilerBuiltins, LldMode, StringOrBool, Target, TargetSelection}; use crate::utils::tests::git::git_test; pub(crate) fn parse(config: &str) -> Config { @@ -183,7 +183,11 @@ runner = "x86_64-runner" ); assert_eq!(config.gdb, Some("bar".into()), "setting string value with quotes"); assert!(!config.deny_warnings, "setting boolean value"); - assert!(config.optimized_compiler_builtins, "setting boolean value"); + assert_eq!( + config.optimized_compiler_builtins, + CompilerBuiltins::BuildLLVMFuncs, + "setting boolean value" + ); assert_eq!( config.tools, Some(["cargo".to_string()].into_iter().collect()), @@ -212,7 +216,7 @@ runner = "x86_64-runner" let darwin = TargetSelection::from_user("aarch64-apple-darwin"); let darwin_values = Target { runner: Some("apple".into()), - optimized_compiler_builtins: Some(false), + optimized_compiler_builtins: Some(CompilerBuiltins::BuildRustOnly), ..Default::default() }; assert_eq!( diff --git a/src/bootstrap/src/core/config/toml/build.rs b/src/bootstrap/src/core/config/toml/build.rs index 728367b3972..25c19f1070a 100644 --- a/src/bootstrap/src/core/config/toml/build.rs +++ b/src/bootstrap/src/core/config/toml/build.rs @@ -11,7 +11,7 @@ use std::collections::HashMap; use serde::{Deserialize, Deserializer}; use crate::core::config::toml::ReplaceOpt; -use crate::core::config::{Merge, StringOrBool}; +use crate::core::config::{CompilerBuiltins, Merge, StringOrBool}; use crate::{HashSet, PathBuf, define_config, exit}; define_config! { @@ -65,7 +65,7 @@ define_config! { // NOTE: only parsed by bootstrap.py, `--feature build-metrics` enables metrics unconditionally metrics: Option<bool> = "metrics", android_ndk: Option<PathBuf> = "android-ndk", - optimized_compiler_builtins: Option<bool> = "optimized-compiler-builtins", + optimized_compiler_builtins: Option<CompilerBuiltins> = "optimized-compiler-builtins", jobs: Option<u32> = "jobs", compiletest_diff_tool: Option<String> = "compiletest-diff-tool", compiletest_allow_stage0: Option<bool> = "compiletest-allow-stage0", diff --git a/src/bootstrap/src/core/config/toml/rust.rs b/src/bootstrap/src/core/config/toml/rust.rs index 3dab8d1d96d..7f111094c3f 100644 --- a/src/bootstrap/src/core/config/toml/rust.rs +++ b/src/bootstrap/src/core/config/toml/rust.rs @@ -269,9 +269,9 @@ pub fn check_incompatible_options_for_ci_rustc( err!(current_profiler, profiler, "build"); let current_optimized_compiler_builtins = - current_config_toml.build.as_ref().and_then(|b| b.optimized_compiler_builtins); + current_config_toml.build.as_ref().and_then(|b| b.optimized_compiler_builtins.clone()); let optimized_compiler_builtins = - ci_config_toml.build.as_ref().and_then(|b| b.optimized_compiler_builtins); + ci_config_toml.build.as_ref().and_then(|b| b.optimized_compiler_builtins.clone()); err!(current_optimized_compiler_builtins, optimized_compiler_builtins, "build"); // We always build the in-tree compiler on cross targets, so we only care diff --git a/src/bootstrap/src/core/config/toml/target.rs b/src/bootstrap/src/core/config/toml/target.rs index 2c06fd083a8..020602e6a19 100644 --- a/src/bootstrap/src/core/config/toml/target.rs +++ b/src/bootstrap/src/core/config/toml/target.rs @@ -11,7 +11,9 @@ use serde::{Deserialize, Deserializer}; -use crate::core::config::{LlvmLibunwind, Merge, ReplaceOpt, SplitDebuginfo, StringOrBool}; +use crate::core::config::{ + CompilerBuiltins, LlvmLibunwind, Merge, ReplaceOpt, SplitDebuginfo, StringOrBool, +}; use crate::{CodegenBackendKind, HashSet, PathBuf, define_config, exit}; define_config! { @@ -39,7 +41,7 @@ define_config! { no_std: Option<bool> = "no-std", codegen_backends: Option<Vec<String>> = "codegen-backends", runner: Option<String> = "runner", - optimized_compiler_builtins: Option<bool> = "optimized-compiler-builtins", + optimized_compiler_builtins: Option<CompilerBuiltins> = "optimized-compiler-builtins", jemalloc: Option<bool> = "jemalloc", } } @@ -71,7 +73,7 @@ pub struct Target { pub runner: Option<String>, pub no_std: bool, pub codegen_backends: Option<Vec<CodegenBackendKind>>, - pub optimized_compiler_builtins: Option<bool>, + pub optimized_compiler_builtins: Option<CompilerBuiltins>, pub jemalloc: Option<bool>, } diff --git a/src/bootstrap/src/core/download.rs b/src/bootstrap/src/core/download.rs index 5ded44cef14..2f3c80559c0 100644 --- a/src/bootstrap/src/core/download.rs +++ b/src/bootstrap/src/core/download.rs @@ -9,9 +9,8 @@ use std::sync::{Arc, Mutex, OnceLock}; use build_helper::git::PathFreshness; use xz2::bufread::XzDecoder; -use crate::core::config::{BUILDER_CONFIG_FILENAME, Target, TargetSelection}; +use crate::core::config::{BUILDER_CONFIG_FILENAME, TargetSelection}; use crate::utils::build_stamp::BuildStamp; -use crate::utils::channel; use crate::utils::exec::{ExecutionContext, command}; use crate::utils::helpers::{exe, hex_encode, move_file}; use crate::{Config, t}; @@ -73,7 +72,7 @@ impl Config { fn download_file(&self, url: &str, dest_path: &Path, help_on_error: &str) { let dwn_ctx: DownloadContext<'_> = self.into(); - download_file(dwn_ctx, url, dest_path, help_on_error); + download_file(dwn_ctx, &self.out, url, dest_path, help_on_error); } fn unpack(&self, tarball: &Path, dst: &Path, pattern: &str) { @@ -238,7 +237,7 @@ impl Config { destination: &str, ) { let dwn_ctx: DownloadContext<'_> = self.into(); - download_component(dwn_ctx, mode, filename, prefix, key, destination); + download_component(dwn_ctx, &self.out, mode, filename, prefix, key, destination); } #[cfg(test)] @@ -403,13 +402,8 @@ impl Config { pub(crate) struct DownloadContext<'a> { pub path_modification_cache: Arc<Mutex<HashMap<Vec<&'static str>, PathFreshness>>>, pub src: &'a Path, - pub rust_info: &'a channel::GitInfo, pub submodules: &'a Option<bool>, - pub download_rustc_commit: &'a Option<String>, pub host_target: TargetSelection, - pub llvm_from_ci: bool, - pub target_config: &'a HashMap<TargetSelection, Target>, - pub out: &'a Path, pub patch_binaries_for_nix: Option<bool>, pub exec_ctx: &'a ExecutionContext, pub stage0_metadata: &'a build_helper::stage0_parser::Stage0, @@ -430,12 +424,7 @@ impl<'a> From<&'a Config> for DownloadContext<'a> { path_modification_cache: value.path_modification_cache.clone(), src: &value.src, host_target: value.host_target, - rust_info: &value.rust_info, - download_rustc_commit: &value.download_rustc_commit, submodules: &value.submodules, - llvm_from_ci: value.llvm_from_ci, - target_config: &value.target_config, - out: &value.out, patch_binaries_for_nix: value.patch_binaries_for_nix, exec_ctx: &value.exec_ctx, stage0_metadata: &value.stage0_metadata, @@ -495,6 +484,7 @@ pub(crate) fn is_download_ci_available(target_triple: &str, llvm_assertions: boo #[cfg(test)] pub(crate) fn maybe_download_rustfmt<'a>( dwn_ctx: impl AsRef<DownloadContext<'a>>, + out: &Path, ) -> Option<PathBuf> { Some(PathBuf::new()) } @@ -504,6 +494,7 @@ pub(crate) fn maybe_download_rustfmt<'a>( #[cfg(not(test))] pub(crate) fn maybe_download_rustfmt<'a>( dwn_ctx: impl AsRef<DownloadContext<'a>>, + out: &Path, ) -> Option<PathBuf> { use build_helper::stage0_parser::VersionMetadata; @@ -517,7 +508,7 @@ pub(crate) fn maybe_download_rustfmt<'a>( let channel = format!("{version}-{date}"); let host = dwn_ctx.host_target; - let bin_root = dwn_ctx.out.join(host).join("rustfmt"); + let bin_root = out.join(host).join("rustfmt"); let rustfmt_path = bin_root.join("bin").join(exe("rustfmt", host)); let rustfmt_stamp = BuildStamp::new(&bin_root).with_prefix("rustfmt").add_stamp(channel); if rustfmt_path.exists() && rustfmt_stamp.is_up_to_date() { @@ -526,6 +517,7 @@ pub(crate) fn maybe_download_rustfmt<'a>( download_component( dwn_ctx, + out, DownloadSource::Dist, format!("rustfmt-{version}-{build}.tar.xz", build = host.triple), "rustfmt-preview", @@ -535,6 +527,7 @@ pub(crate) fn maybe_download_rustfmt<'a>( download_component( dwn_ctx, + out, DownloadSource::Dist, format!("rustc-{version}-{build}.tar.xz", build = host.triple), "rustc", @@ -543,13 +536,13 @@ pub(crate) fn maybe_download_rustfmt<'a>( ); if should_fix_bins_and_dylibs(dwn_ctx.patch_binaries_for_nix, dwn_ctx.exec_ctx) { - fix_bin_or_dylib(dwn_ctx.out, &bin_root.join("bin").join("rustfmt"), dwn_ctx.exec_ctx); - fix_bin_or_dylib(dwn_ctx.out, &bin_root.join("bin").join("cargo-fmt"), dwn_ctx.exec_ctx); + fix_bin_or_dylib(out, &bin_root.join("bin").join("rustfmt"), dwn_ctx.exec_ctx); + fix_bin_or_dylib(out, &bin_root.join("bin").join("cargo-fmt"), dwn_ctx.exec_ctx); let lib_dir = bin_root.join("lib"); for lib in t!(fs::read_dir(&lib_dir), lib_dir.display().to_string()) { let lib = t!(lib); if path_is_dylib(&lib.path()) { - fix_bin_or_dylib(dwn_ctx.out, &lib.path(), dwn_ctx.exec_ctx); + fix_bin_or_dylib(out, &lib.path(), dwn_ctx.exec_ctx); } } } @@ -559,10 +552,10 @@ pub(crate) fn maybe_download_rustfmt<'a>( } #[cfg(test)] -pub(crate) fn download_beta_toolchain<'a>(dwn_ctx: impl AsRef<DownloadContext<'a>>) {} +pub(crate) fn download_beta_toolchain<'a>(dwn_ctx: impl AsRef<DownloadContext<'a>>, out: &Path) {} #[cfg(not(test))] -pub(crate) fn download_beta_toolchain<'a>(dwn_ctx: impl AsRef<DownloadContext<'a>>) { +pub(crate) fn download_beta_toolchain<'a>(dwn_ctx: impl AsRef<DownloadContext<'a>>, out: &Path) { let dwn_ctx = dwn_ctx.as_ref(); dwn_ctx.exec_ctx.verbose(|| { println!("downloading stage0 beta artifacts"); @@ -574,6 +567,7 @@ pub(crate) fn download_beta_toolchain<'a>(dwn_ctx: impl AsRef<DownloadContext<'a let sysroot = "stage0"; download_toolchain( dwn_ctx, + out, &version, sysroot, &date, @@ -583,8 +577,10 @@ pub(crate) fn download_beta_toolchain<'a>(dwn_ctx: impl AsRef<DownloadContext<'a ); } +#[allow(clippy::too_many_arguments)] fn download_toolchain<'a>( dwn_ctx: impl AsRef<DownloadContext<'a>>, + out: &Path, version: &str, sysroot: &str, stamp_key: &str, @@ -594,7 +590,7 @@ fn download_toolchain<'a>( ) { let dwn_ctx = dwn_ctx.as_ref(); let host = dwn_ctx.host_target.triple; - let bin_root = dwn_ctx.out.join(host).join(sysroot); + let bin_root = out.join(host).join(sysroot); let rustc_stamp = BuildStamp::new(&bin_root).with_prefix("rustc").add_stamp(stamp_key); if !bin_root.join("bin").join(exe("rustc", dwn_ctx.host_target)).exists() @@ -605,20 +601,28 @@ fn download_toolchain<'a>( } let filename = format!("rust-std-{version}-{host}.tar.xz"); let pattern = format!("rust-std-{host}"); - download_component(dwn_ctx, mode.clone(), filename, &pattern, stamp_key, destination); + download_component(dwn_ctx, out, mode.clone(), filename, &pattern, stamp_key, destination); let filename = format!("rustc-{version}-{host}.tar.xz"); - download_component(dwn_ctx, mode.clone(), filename, "rustc", stamp_key, destination); + download_component(dwn_ctx, out, mode.clone(), filename, "rustc", stamp_key, destination); for component in extra_components { let filename = format!("{component}-{version}-{host}.tar.xz"); - download_component(dwn_ctx, mode.clone(), filename, component, stamp_key, destination); + download_component( + dwn_ctx, + out, + mode.clone(), + filename, + component, + stamp_key, + destination, + ); } if should_fix_bins_and_dylibs(dwn_ctx.patch_binaries_for_nix, dwn_ctx.exec_ctx) { - fix_bin_or_dylib(dwn_ctx.out, &bin_root.join("bin").join("rustc"), dwn_ctx.exec_ctx); - fix_bin_or_dylib(dwn_ctx.out, &bin_root.join("bin").join("rustdoc"), dwn_ctx.exec_ctx); + fix_bin_or_dylib(out, &bin_root.join("bin").join("rustc"), dwn_ctx.exec_ctx); + fix_bin_or_dylib(out, &bin_root.join("bin").join("rustdoc"), dwn_ctx.exec_ctx); fix_bin_or_dylib( - dwn_ctx.out, + out, &bin_root.join("libexec").join("rust-analyzer-proc-macro-srv"), dwn_ctx.exec_ctx, ); @@ -626,7 +630,7 @@ fn download_toolchain<'a>( for lib in t!(fs::read_dir(&lib_dir), lib_dir.display().to_string()) { let lib = t!(lib); if path_is_dylib(&lib.path()) { - fix_bin_or_dylib(dwn_ctx.out, &lib.path(), dwn_ctx.exec_ctx); + fix_bin_or_dylib(out, &lib.path(), dwn_ctx.exec_ctx); } } } @@ -750,6 +754,7 @@ fn should_fix_bins_and_dylibs( fn download_component<'a>( dwn_ctx: impl AsRef<DownloadContext<'a>>, + out: &Path, mode: DownloadSource, filename: String, prefix: &str, @@ -763,14 +768,14 @@ fn download_component<'a>( } let cache_dst = - dwn_ctx.bootstrap_cache_path.as_ref().cloned().unwrap_or_else(|| dwn_ctx.out.join("cache")); + dwn_ctx.bootstrap_cache_path.as_ref().cloned().unwrap_or_else(|| out.join("cache")); let cache_dir = cache_dst.join(key); if !cache_dir.exists() { t!(fs::create_dir_all(&cache_dir)); } - let bin_root = dwn_ctx.out.join(dwn_ctx.host_target).join(destination); + let bin_root = out.join(dwn_ctx.host_target).join(destination); let tarball = cache_dir.join(&filename); let (base_url, url, should_verify) = match mode { DownloadSource::CI => { @@ -835,7 +840,7 @@ HELP: if trying to compile an old commit of rustc, disable `download-rustc` in b download-rustc = false "; } - download_file(dwn_ctx, &format!("{base_url}/{url}"), &tarball, help_on_error); + download_file(dwn_ctx, out, &format!("{base_url}/{url}"), &tarball, help_on_error); if let Some(sha256) = checksum && !verify(dwn_ctx.exec_ctx, &tarball, sha256) { @@ -953,6 +958,7 @@ fn unpack(exec_ctx: &ExecutionContext, tarball: &Path, dst: &Path, pattern: &str fn download_file<'a>( dwn_ctx: impl AsRef<DownloadContext<'a>>, + out: &Path, url: &str, dest_path: &Path, help_on_error: &str, @@ -963,7 +969,7 @@ fn download_file<'a>( println!("download {url}"); }); // Use a temporary file in case we crash while downloading, to avoid a corrupt download in cache/. - let tempfile = tempdir(dwn_ctx.out).join(dest_path.file_name().unwrap()); + let tempfile = tempdir(out).join(dest_path.file_name().unwrap()); // While bootstrap itself only supports http and https downloads, downstream forks might // need to download components from other protocols. The match allows them adding more // protocols without worrying about merge conflicts if we change the HTTP implementation. diff --git a/src/bootstrap/src/core/sanity.rs b/src/bootstrap/src/core/sanity.rs index bd02131b7fe..4916ebbd610 100644 --- a/src/bootstrap/src/core/sanity.rs +++ b/src/bootstrap/src/core/sanity.rs @@ -18,7 +18,7 @@ use crate::builder::Builder; use crate::builder::Kind; #[cfg(not(test))] use crate::core::build_steps::tool; -use crate::core::config::Target; +use crate::core::config::{CompilerBuiltins, Target}; use crate::utils::exec::command; use crate::{Build, Subcommand}; @@ -35,6 +35,7 @@ pub struct Finder { const STAGE0_MISSING_TARGETS: &[&str] = &[ "armv7a-vex-v5", // just a dummy comment so the list doesn't get onelined + "aarch64_be-unknown-hermit", "aarch64_be-unknown-none-softfloat", ]; @@ -327,6 +328,24 @@ than building it. .entry(*target) .or_insert_with(|| Target::from_triple(&target.triple)); + // compiler-rt c fallbacks for wasm cannot be built with gcc + if target.contains("wasm") + && (*build.config.optimized_compiler_builtins(*target) + != CompilerBuiltins::BuildRustOnly + || build.config.rust_std_features.contains("compiler-builtins-c")) + { + let cc_tool = build.cc_tool(*target); + if !cc_tool.is_like_clang() && !cc_tool.path().ends_with("emcc") { + // emcc works as well + panic!( + "Clang is required to build C code for Wasm targets, got `{}` instead\n\ + this is because compiler-builtins is configured to build C source. Either \ + ensure Clang is used, or adjust this configuration.", + cc_tool.path().display() + ); + } + } + if (target.contains("-none-") || target.contains("nvptx")) && build.no_std(*target) == Some(false) { diff --git a/src/bootstrap/src/lib.rs b/src/bootstrap/src/lib.rs index 55e74f9e4d9..ec7edbf7531 100644 --- a/src/bootstrap/src/lib.rs +++ b/src/bootstrap/src/lib.rs @@ -165,6 +165,20 @@ impl CodegenBackendKind { } } +impl std::str::FromStr for CodegenBackendKind { + type Err = &'static str; + + fn from_str(s: &str) -> Result<Self, Self::Err> { + match s.to_lowercase().as_str() { + "" => Err("Invalid empty backend name"), + "gcc" => Ok(Self::Gcc), + "llvm" => Ok(Self::Llvm), + "cranelift" => Ok(Self::Cranelift), + _ => Ok(Self::Custom(s.to_string())), + } + } +} + #[derive(PartialEq, Eq, Copy, Clone, Debug)] pub enum DocTests { /// Run normal tests and doc tests (default). @@ -279,7 +293,7 @@ pub enum DependencyType { /// /// These entries currently correspond to the various output directories of the /// build system, with each mod generating output in a different directory. -#[derive(Debug, Hash, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)] +#[derive(Debug, Hash, Clone, Copy, PartialEq, Eq)] pub enum Mode { /// Build the standard library, placing output in the "stageN-std" directory. Std, @@ -357,7 +371,7 @@ pub enum RemapScheme { NonCompiler, } -#[derive(Debug, Hash, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)] +#[derive(Debug, Hash, Clone, Copy, PartialEq, Eq)] pub enum CLang { C, Cxx, @@ -1743,6 +1757,7 @@ impl Build { /// /// If `src` is a symlink, `src` will be resolved to the actual path /// and copied to `dst` instead of the symlink itself. + #[track_caller] pub fn resolve_symlink_and_copy(&self, src: &Path, dst: &Path) { self.copy_link_internal(src, dst, true); } @@ -1751,6 +1766,7 @@ impl Build { /// Attempts to use hard links if possible, falling back to copying. /// You can neither rely on this being a copy nor it being a link, /// so do not write to dst. + #[track_caller] pub fn copy_link(&self, src: &Path, dst: &Path, file_type: FileType) { self.copy_link_internal(src, dst, false); @@ -1765,6 +1781,7 @@ impl Build { } } + #[track_caller] fn copy_link_internal(&self, src: &Path, dst: &Path, dereference_symlinks: bool) { if self.config.dry_run() { return; @@ -1773,6 +1790,10 @@ impl Build { if src == dst { return; } + + #[cfg(feature = "tracing")] + let _span = trace_io!("file-copy-link", ?src, ?dst); + if let Err(e) = fs::remove_file(dst) && cfg!(windows) && e.kind() != io::ErrorKind::NotFound @@ -1815,6 +1836,7 @@ impl Build { /// Links the `src` directory recursively to `dst`. Both are assumed to exist /// when this function is called. /// Will attempt to use hard links if possible and fall back to copying. + #[track_caller] pub fn cp_link_r(&self, src: &Path, dst: &Path) { if self.config.dry_run() { return; @@ -1837,12 +1859,14 @@ impl Build { /// Will attempt to use hard links if possible and fall back to copying. /// Unwanted files or directories can be skipped /// by returning `false` from the filter function. + #[track_caller] pub fn cp_link_filtered(&self, src: &Path, dst: &Path, filter: &dyn Fn(&Path) -> bool) { // Immediately recurse with an empty relative path self.cp_link_filtered_recurse(src, dst, Path::new(""), filter) } // Inner function does the actual work + #[track_caller] fn cp_link_filtered_recurse( &self, src: &Path, @@ -1903,10 +1927,15 @@ impl Build { t!(fs::read_to_string(path)) } + #[track_caller] fn create_dir(&self, dir: &Path) { if self.config.dry_run() { return; } + + #[cfg(feature = "tracing")] + let _span = trace_io!("dir-create", ?dir); + t!(fs::create_dir_all(dir)) } @@ -1914,6 +1943,10 @@ impl Build { if self.config.dry_run() { return; } + + #[cfg(feature = "tracing")] + let _span = trace_io!("dir-remove", ?dir); + t!(fs::remove_dir_all(dir)) } diff --git a/src/bootstrap/src/utils/build_stamp.rs b/src/bootstrap/src/utils/build_stamp.rs index 6c79385190e..4c35388a181 100644 --- a/src/bootstrap/src/utils/build_stamp.rs +++ b/src/bootstrap/src/utils/build_stamp.rs @@ -136,13 +136,13 @@ pub fn codegen_backend_stamp( } /// Cargo's output path for the standard library in a given stage, compiled -/// by a particular compiler for the specified target. +/// by a particular `build_compiler` for the specified `target`. pub fn libstd_stamp( builder: &Builder<'_>, - compiler: Compiler, + build_compiler: Compiler, target: TargetSelection, ) -> BuildStamp { - BuildStamp::new(&builder.cargo_out(compiler, Mode::Std, target)).with_prefix("libstd") + BuildStamp::new(&builder.cargo_out(build_compiler, Mode::Std, target)).with_prefix("libstd") } /// Cargo's output path for librustc in a given stage, compiled by a particular diff --git a/src/bootstrap/src/utils/change_tracker.rs b/src/bootstrap/src/utils/change_tracker.rs index b454a8ddefb..073954e9337 100644 --- a/src/bootstrap/src/utils/change_tracker.rs +++ b/src/bootstrap/src/utils/change_tracker.rs @@ -506,4 +506,24 @@ pub const CONFIG_CHANGE_HISTORY: &[ChangeInfo] = &[ severity: ChangeSeverity::Warning, summary: "It is no longer possible to `x clippy` with stage 0. All clippy commands have to be on stage 1+.", }, + ChangeInfo { + change_id: 145256, + severity: ChangeSeverity::Info, + summary: "Added `--test-codegen-backend` CLI option for tests", + }, + ChangeInfo { + change_id: 145379, + severity: ChangeSeverity::Info, + summary: "Build/check now supports forwarding `--timings` flag to cargo.", + }, + ChangeInfo { + change_id: 145472, + severity: ChangeSeverity::Warning, + summary: "It is no longer possible to `x dist` or `x install` with stage 0. All dist and install commands have to be on stage 1+.", + }, + ChangeInfo { + change_id: 143689, + severity: ChangeSeverity::Info, + summary: "The `optimized-compiler-builtins` option now accepts a path to an existing compiler-rt builtins library.", + }, ]; diff --git a/src/bootstrap/src/utils/tests/mod.rs b/src/bootstrap/src/utils/tests/mod.rs index 983680b0385..3332187e2a8 100644 --- a/src/bootstrap/src/utils/tests/mod.rs +++ b/src/bootstrap/src/utils/tests/mod.rs @@ -31,6 +31,10 @@ impl TestCtx { Self { directory } } + pub fn dir(&self) -> &Path { + self.directory.path() + } + /// Starts a new invocation of bootstrap that executes `kind` as its top level command /// (i.e. `x <kind>`). Returns a builder that configures the created config through CLI flags. pub fn config(&self, kind: &str) -> ConfigBuilder { diff --git a/src/bootstrap/src/utils/tracing.rs b/src/bootstrap/src/utils/tracing.rs index 428ba013c98..472781ffa73 100644 --- a/src/bootstrap/src/utils/tracing.rs +++ b/src/bootstrap/src/utils/tracing.rs @@ -49,13 +49,36 @@ macro_rules! error { } #[cfg(feature = "tracing")] +pub const IO_SPAN_TARGET: &str = "IO"; + +/// Create a tracing span around an I/O operation, if tracing is enabled. +/// Note that at least one tracing value field has to be passed to this macro, otherwise it will not +/// compile. +#[macro_export] +macro_rules! trace_io { + ($name:expr, $($args:tt)*) => { + ::tracing::trace_span!( + target: $crate::utils::tracing::IO_SPAN_TARGET, + $name, + $($args)*, + location = $crate::utils::tracing::format_location(*::std::panic::Location::caller()) + ).entered() + } +} + +#[cfg(feature = "tracing")] +pub fn format_location(location: std::panic::Location<'static>) -> String { + format!("{}:{}", location.file(), location.line()) +} + +#[cfg(feature = "tracing")] const COMMAND_SPAN_TARGET: &str = "COMMAND"; #[cfg(feature = "tracing")] pub fn trace_cmd(command: &crate::BootstrapCommand) -> tracing::span::EnteredSpan { let fingerprint = command.fingerprint(); let location = command.get_created_location(); - let location = format!("{}:{}", location.file(), location.line()); + let location = format_location(location); tracing::span!( target: COMMAND_SPAN_TARGET, @@ -84,6 +107,7 @@ mod inner { use std::fmt::Debug; use std::fs::File; use std::io::Write; + use std::path::{Path, PathBuf}; use std::sync::atomic::Ordering; use chrono::{DateTime, Utc}; @@ -93,8 +117,8 @@ mod inner { use tracing_subscriber::registry::{LookupSpan, SpanRef}; use tracing_subscriber::{EnvFilter, Layer}; + use super::{COMMAND_SPAN_TARGET, IO_SPAN_TARGET}; use crate::STEP_SPAN_TARGET; - use crate::utils::tracing::COMMAND_SPAN_TARGET; pub fn setup_tracing(env_name: &str) -> TracingGuard { let filter = EnvFilter::from_env(env_name); @@ -291,6 +315,23 @@ mod inner { Ok(()) } + // Write fields while treating the "location" field specially, and assuming that it + // contains the source file location relevant to the span. + let write_with_location = |writer: &mut W| -> std::io::Result<()> { + if let Some(values) = field_values { + write_fields( + writer, + values.fields.iter().filter(|(name, _)| *name != "location"), + )?; + let location = + &values.fields.iter().find(|(name, _)| *name == "location").unwrap().1; + let (filename, line) = location.rsplit_once(':').unwrap(); + let filename = shorten_filename(filename); + write!(writer, " ({filename}:{line})",)?; + } + Ok(()) + }; + // We handle steps specially. We instrument them dynamically in `Builder::ensure`, // and we want to have custom name for each step span. But tracing doesn't allow setting // dynamic span names. So we detect step spans here and override their name. @@ -311,17 +352,11 @@ mod inner { // Executed command COMMAND_SPAN_TARGET => { write!(writer, "{}", span.name())?; - if let Some(values) = field_values { - write_fields( - writer, - values.fields.iter().filter(|(name, _)| *name != "location"), - )?; - write!( - writer, - " ({})", - values.fields.iter().find(|(name, _)| *name == "location").unwrap().1 - )?; - } + write_with_location(writer)?; + } + IO_SPAN_TARGET => { + write!(writer, "{}", span.name())?; + write_with_location(writer)?; } // Other span _ => { @@ -342,21 +377,10 @@ mod inner { writer: &mut W, metadata: &'static tracing::Metadata<'static>, ) -> std::io::Result<()> { - use std::path::{Path, PathBuf}; - if let Some(filename) = metadata.file() { - // Keep only the module name and file name to make it shorter - let filename: PathBuf = Path::new(filename) - .components() - // Take last two path components - .rev() - .take(2) - .collect::<Vec<_>>() - .into_iter() - .rev() - .collect(); - - write!(writer, " ({}", filename.display())?; + let filename = shorten_filename(filename); + + write!(writer, " ({filename}")?; if let Some(line) = metadata.line() { write!(writer, ":{line}")?; } @@ -365,6 +389,21 @@ mod inner { Ok(()) } + /// Keep only the module name and file name to make it shorter + fn shorten_filename(filename: &str) -> String { + Path::new(filename) + .components() + // Take last two path components + .rev() + .take(2) + .collect::<Vec<_>>() + .into_iter() + .rev() + .collect::<PathBuf>() + .display() + .to_string() + } + impl<S> Layer<S> for TracingPrinter where S: Subscriber, diff --git a/src/ci/citool/src/analysis.rs b/src/ci/citool/src/analysis.rs index 62974be2dbe..8ba8f1ab564 100644 --- a/src/ci/citool/src/analysis.rs +++ b/src/ci/citool/src/analysis.rs @@ -75,7 +75,7 @@ fn format_build_step_diffs(current: &BuildStep, parent: &BuildStep) -> String { } } - fn get_steps(step: &BuildStep) -> Vec<StepByName> { + fn get_steps(step: &BuildStep) -> Vec<StepByName<'_>> { step.linearize_steps().into_iter().map(|v| StepByName(v)).collect() } diff --git a/src/ci/citool/src/test_dashboard.rs b/src/ci/citool/src/test_dashboard.rs index 8fbd0d3f200..c9de38852e5 100644 --- a/src/ci/citool/src/test_dashboard.rs +++ b/src/ci/citool/src/test_dashboard.rs @@ -33,7 +33,7 @@ fn write_page<T: Template>(dir: &Path, name: &str, template: &T) -> anyhow::Resu Ok(()) } -fn gather_test_suites(job_metrics: &HashMap<JobName, JobMetrics>) -> TestSuites { +fn gather_test_suites(job_metrics: &HashMap<JobName, JobMetrics>) -> TestSuites<'_> { struct CoarseTestSuite<'a> { tests: BTreeMap<String, Test<'a>>, } diff --git a/src/ci/citool/src/utils.rs b/src/ci/citool/src/utils.rs index 0367d349a1e..3176cb62f60 100644 --- a/src/ci/citool/src/utils.rs +++ b/src/ci/citool/src/utils.rs @@ -31,6 +31,6 @@ where } /// Normalizes Windows-style path delimiters to Unix-style paths. -pub fn normalize_path_delimiters(name: &str) -> Cow<str> { +pub fn normalize_path_delimiters(name: &str) -> Cow<'_, str> { if name.contains("\\") { name.replace('\\', "/").into() } else { name.into() } } diff --git a/src/ci/docker/host-x86_64/dist-various-1/Dockerfile b/src/ci/docker/host-x86_64/dist-various-1/Dockerfile index 5c459e5cd18..4d5980027ca 100644 --- a/src/ci/docker/host-x86_64/dist-various-1/Dockerfile +++ b/src/ci/docker/host-x86_64/dist-various-1/Dockerfile @@ -55,6 +55,12 @@ RUN ./install-riscv64-none-elf.sh COPY host-x86_64/dist-various-1/install-riscv32-none-elf.sh /build RUN ./install-riscv32-none-elf.sh +COPY host-x86_64/dist-various-1/install-emscripten.sh /build +RUN ./install-emscripten.sh + +# Add Emscripten to PATH +ENV PATH="/build/emsdk:/build/emsdk/upstream/emscripten:/build/emsdk/node/current/bin:${PATH}" + # Suppress some warnings in the openwrt toolchains we downloaded ENV STAGING_DIR=/tmp diff --git a/src/ci/docker/host-x86_64/dist-various-1/install-emscripten.sh b/src/ci/docker/host-x86_64/dist-various-1/install-emscripten.sh new file mode 100755 index 00000000000..eeb54ca67f7 --- /dev/null +++ b/src/ci/docker/host-x86_64/dist-various-1/install-emscripten.sh @@ -0,0 +1,12 @@ +#!/usr/bin/env bash +set -ex + +apt-get update +apt-get install -y --no-install-recommends \ + nodejs \ + default-jre + +git clone https://github.com/emscripten-core/emsdk.git +cd emsdk +./emsdk install latest +./emsdk activate latest diff --git a/src/ci/docker/host-x86_64/dist-various-2/Dockerfile b/src/ci/docker/host-x86_64/dist-various-2/Dockerfile index 0855ea222a3..33d55123936 100644 --- a/src/ci/docker/host-x86_64/dist-various-2/Dockerfile +++ b/src/ci/docker/host-x86_64/dist-various-2/Dockerfile @@ -59,6 +59,10 @@ ENV \ CXX_i686_unknown_uefi=clang++-11 \ CC_x86_64_unknown_uefi=clang-11 \ CXX_x86_64_unknown_uefi=clang++-11 \ + CC_wasm32_unknown_unknown=clang-11 \ + CXX_wasm32_unknown_unknown=clang++-11 \ + CC_wasm32v1_none=clang-11 \ + CXX_wasm32v1_none=clang++-11 \ CC=gcc-9 \ CXX=g++-9 diff --git a/src/ci/docker/host-x86_64/test-various/Dockerfile b/src/ci/docker/host-x86_64/test-various/Dockerfile index 82a820c859d..6ff529c9e71 100644 --- a/src/ci/docker/host-x86_64/test-various/Dockerfile +++ b/src/ci/docker/host-x86_64/test-various/Dockerfile @@ -4,6 +4,7 @@ ARG DEBIAN_FRONTEND=noninteractive RUN apt-get update && apt-get install -y --no-install-recommends \ clang-11 \ llvm-11 \ + gcc-multilib \ g++ \ make \ ninja-build \ @@ -59,8 +60,8 @@ RUN curl -L https://github.com/bytecodealliance/wasmtime/releases/download/v19.0 tar -xJ ENV PATH "$PATH:/wasmtime-v19.0.0-x86_64-linux" -ENV WASM_TARGETS=wasm32-wasip1 -ENV WASM_SCRIPT python3 /checkout/x.py --stage 2 test --host='' --target $WASM_TARGETS \ +ENV WASM_WASIP_TARGET=wasm32-wasip1 +ENV WASM_WASIP_SCRIPT python3 /checkout/x.py --stage 2 test --host='' --target $WASM_WASIP_TARGET \ tests/run-make \ tests/ui \ tests/mir-opt \ @@ -91,4 +92,4 @@ ENV UEFI_SCRIPT python3 /checkout/x.py --stage 2 build --host='' --target $UEFI_ python3 /checkout/x.py --stage 2 test tests/run-make/uefi-qemu/rmake.rs --target i686-unknown-uefi && \ python3 /checkout/x.py --stage 2 test tests/run-make/uefi-qemu/rmake.rs --target x86_64-unknown-uefi -ENV SCRIPT $WASM_SCRIPT && $NVPTX_SCRIPT && $MUSL_SCRIPT && $UEFI_SCRIPT +ENV SCRIPT $WASM_WASIP_SCRIPT && $NVPTX_SCRIPT && $MUSL_SCRIPT && $UEFI_SCRIPT diff --git a/src/ci/docker/host-x86_64/tidy/Dockerfile b/src/ci/docker/host-x86_64/tidy/Dockerfile index ee1ae5410ee..c8558689d3b 100644 --- a/src/ci/docker/host-x86_64/tidy/Dockerfile +++ b/src/ci/docker/host-x86_64/tidy/Dockerfile @@ -45,4 +45,4 @@ RUN bash -c 'npm install -g eslint@$(cat /tmp/eslint.version)' # NOTE: intentionally uses python2 for x.py so we can test it still works. # validate-toolstate only runs in our CI, so it's ok for it to only support python3. ENV SCRIPT TIDY_PRINT_DIFF=1 python2.7 ../x.py test --stage 0 \ - src/tools/tidy tidyselftest --extra-checks=py,cpp,js + src/tools/tidy tidyselftest --extra-checks=py,cpp,js,spellcheck diff --git a/src/ci/github-actions/jobs.yml b/src/ci/github-actions/jobs.yml index ae13d14c380..409d2cba821 100644 --- a/src/ci/github-actions/jobs.yml +++ b/src/ci/github-actions/jobs.yml @@ -23,16 +23,11 @@ runners: <<: *base-job - &job-macos - os: macos-13 - <<: *base-job - - - &job-macos-m1 os: macos-14 <<: *base-job - &job-windows os: windows-2025 - free_disk: true <<: *base-job - &job-windows-8c @@ -68,17 +63,6 @@ runners: <<: *base-job envs: - env-x86_64-apple-tests: &env-x86_64-apple-tests - SCRIPT: ./x.py check compiletest --set build.compiletest-use-stage0-libtest=true && ./x.py --stage 2 test --skip tests/ui --skip tests/rustdoc -- --exact - RUST_CONFIGURE_ARGS: --build=x86_64-apple-darwin --enable-sanitizers --enable-profiler --set rust.jemalloc - # Ensure that host tooling is tested on our minimum supported macOS version. - MACOSX_DEPLOYMENT_TARGET: 10.12 - MACOSX_STD_DEPLOYMENT_TARGET: 10.12 - SELECT_XCODE: /Applications/Xcode_15.2.app - NO_LLVM_ASSERTIONS: 1 - NO_DEBUG_ASSERTIONS: 1 - NO_OVERFLOW_CHECKS: 1 - production: &production DEPLOY_BUCKET: rust-lang-ci2 @@ -455,8 +439,19 @@ auto: - name: dist-x86_64-apple env: - SCRIPT: ./x.py dist bootstrap --include-default-paths --host=x86_64-apple-darwin --target=x86_64-apple-darwin - RUST_CONFIGURE_ARGS: --enable-full-tools --enable-sanitizers --enable-profiler --set rust.jemalloc --set rust.lto=thin --set rust.codegen-units=1 + SCRIPT: >- + ./x.py dist bootstrap + --include-default-paths + --host=x86_64-apple-darwin + --target=x86_64-apple-darwin + RUST_CONFIGURE_ARGS: >- + --enable-full-tools + --enable-sanitizers + --enable-profiler + --disable-docs + --set rust.jemalloc + --set rust.lto=thin + --set rust.codegen-units=1 # Ensure that host tooling is built to support our minimum support macOS version. MACOSX_DEPLOYMENT_TARGET: 10.12 MACOSX_STD_DEPLOYMENT_TARGET: 10.12 @@ -482,17 +477,6 @@ auto: NO_LLVM_ASSERTIONS: 1 NO_DEBUG_ASSERTIONS: 1 NO_OVERFLOW_CHECKS: 1 - <<: *job-macos-m1 - - - name: x86_64-apple-1 - env: - <<: *env-x86_64-apple-tests - <<: *job-macos - - - name: x86_64-apple-2 - env: - SCRIPT: ./x.py --stage 2 test tests/ui tests/rustdoc - <<: *env-x86_64-apple-tests <<: *job-macos - name: dist-aarch64-apple @@ -517,7 +501,7 @@ auto: NO_OVERFLOW_CHECKS: 1 DIST_REQUIRE_ALL_TOOLS: 1 CODEGEN_BACKENDS: llvm,cranelift - <<: *job-macos-m1 + <<: *job-macos - name: aarch64-apple env: @@ -537,7 +521,7 @@ auto: NO_LLVM_ASSERTIONS: 1 NO_DEBUG_ASSERTIONS: 1 NO_OVERFLOW_CHECKS: 1 - <<: *job-macos-m1 + <<: *job-macos ###################### # Windows Builders # diff --git a/src/ci/scripts/free-disk-space-windows-start.py b/src/ci/scripts/free-disk-space-windows-start.py deleted file mode 100644 index fbaad722bff..00000000000 --- a/src/ci/scripts/free-disk-space-windows-start.py +++ /dev/null @@ -1,72 +0,0 @@ -""" -Start freeing disk space on Windows in the background by launching -the PowerShell cleanup script, and recording the PID in a file, -so later steps can wait for completion. -""" - -import subprocess -from pathlib import Path -from free_disk_space_windows_util import get_pid_file, get_log_file, run_main - - -def get_cleanup_script() -> Path: - script_dir = Path(__file__).resolve().parent - cleanup_script = script_dir / "free-disk-space-windows.ps1" - if not cleanup_script.exists(): - raise Exception(f"Cleanup script '{cleanup_script}' not found") - return cleanup_script - - -def write_pid(pid: int): - pid_file = get_pid_file() - if pid_file.exists(): - raise Exception(f"Pid file '{pid_file}' already exists") - pid_file.write_text(str(pid)) - print(f"wrote pid {pid} in file {pid_file}") - - -def launch_cleanup_process(): - cleanup_script = get_cleanup_script() - log_file_path = get_log_file() - # Launch the PowerShell cleanup in the background and redirect logs. - try: - with open(log_file_path, "w", encoding="utf-8") as log_file: - proc = subprocess.Popen( - [ - "pwsh", - # Suppress PowerShell startup banner/logo for cleaner logs. - "-NoLogo", - # Don't load user/system profiles. Ensures a clean, predictable environment. - "-NoProfile", - # Disable interactive prompts. Required for CI to avoid hangs. - "-NonInteractive", - # Execute the specified script file (next argument). - "-File", - str(cleanup_script), - ], - # Write child stdout to the log file. - stdout=log_file, - # Merge stderr into stdout for a single, ordered log stream. - stderr=subprocess.STDOUT, - ) - print( - f"Started free-disk-space cleanup in background. " - f"pid={proc.pid}; log_file={log_file_path}" - ) - return proc - except FileNotFoundError as e: - raise Exception("pwsh not found on PATH; cannot start disk cleanup.") from e - - -def main() -> int: - proc = launch_cleanup_process() - - # Write pid of the process to a file, so that later steps can read it and wait - # until the process completes. - write_pid(proc.pid) - - return 0 - - -if __name__ == "__main__": - run_main(main) diff --git a/src/ci/scripts/free-disk-space-windows-wait.py b/src/ci/scripts/free-disk-space-windows-wait.py deleted file mode 100644 index d510781d534..00000000000 --- a/src/ci/scripts/free-disk-space-windows-wait.py +++ /dev/null @@ -1,92 +0,0 @@ -""" -Wait for the background Windows disk cleanup process. -""" - -import ctypes -import time -from free_disk_space_windows_util import get_pid_file, get_log_file, run_main - - -def is_process_running(pid: int) -> bool: - PROCESS_QUERY_LIMITED_INFORMATION = 0x1000 - processHandle = ctypes.windll.kernel32.OpenProcess( - PROCESS_QUERY_LIMITED_INFORMATION, 0, pid - ) - if processHandle == 0: - # The process is not running. - # If you don't have the sufficient rights to check if a process is running, - # zero is also returned. But in GitHub Actions we have these rights. - return False - else: - ctypes.windll.kernel32.CloseHandle(processHandle) - return True - - -def print_logs(): - """Print the logs from the cleanup script.""" - log_file = get_log_file() - if log_file.exists(): - print("free-disk-space logs:") - # Print entire log; replace undecodable bytes to avoid exceptions. - try: - with open(log_file, "r", encoding="utf-8", errors="replace") as f: - print(f.read()) - except Exception as e: - raise Exception(f"Failed to read log file '{log_file}'") from e - else: - print(f"::warning::Log file '{log_file}' not found") - - -def read_pid_from_file() -> int: - """Read the PID from the pid file.""" - - pid_file = get_pid_file() - if not pid_file.exists(): - raise Exception( - f"No background free-disk-space process to wait for: pid file {pid_file} not found" - ) - - pid_file_content = pid_file.read_text().strip() - - # Delete the file if it exists - pid_file.unlink(missing_ok=True) - - try: - # Read the first line and convert to int. - pid = int(pid_file_content.splitlines()[0]) - return pid - except Exception as e: - raise Exception( - f"Error while parsing the pid file with content '{pid_file_content!r}'" - ) from e - - -def wait_for_process(pid: int): - timeout_duration_seconds = 5 * 60 - interval_seconds = 3 - max_attempts = timeout_duration_seconds / interval_seconds - attempts = 0 - - # Poll until process exits - while is_process_running(pid): - if attempts >= max_attempts: - print( - "::warning::Timeout expired while waiting for the disk cleanup process to finish." - ) - break - time.sleep(interval_seconds) - attempts += 1 - - -def main() -> int: - pid = read_pid_from_file() - - wait_for_process(pid) - - print_logs() - - return 0 - - -if __name__ == "__main__": - run_main(main) diff --git a/src/ci/scripts/free-disk-space-windows.ps1 b/src/ci/scripts/free-disk-space-windows.ps1 deleted file mode 100644 index 8a4677bd2ab..00000000000 --- a/src/ci/scripts/free-disk-space-windows.ps1 +++ /dev/null @@ -1,35 +0,0 @@ -# Free disk space on Windows GitHub action runners. - -$ErrorActionPreference = 'Stop' - -Get-Volume | Out-String | Write-Output - -$available = $(Get-Volume C).SizeRemaining - -$dirs = 'C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\Llvm', -'C:\rtools45', 'C:\ghcup', 'C:\Program Files (x86)\Android', -'C:\Program Files\Google\Chrome', 'C:\Program Files (x86)\Microsoft\Edge', -'C:\Program Files\Mozilla Firefox', 'C:\Program Files\MySQL', 'C:\Julia', -'C:\Program Files\MongoDB', 'C:\Program Files\Azure Cosmos DB Emulator', -'C:\Program Files\PostgreSQL', 'C:\Program Files\Unity Hub', -'C:\Strawberry', 'C:\hostedtoolcache\windows\Java_Temurin-Hotspot_jdk' - -foreach ($dir in $dirs) { - Start-ThreadJob -InputObject $dir { - Remove-Item -Recurse -Force -LiteralPath $input - } | Out-Null -} - -foreach ($job in Get-Job) { - Wait-Job $job | Out-Null - if ($job.Error) { - Write-Output "::warning file=$PSCommandPath::$($job.Error)" - } - Remove-Job $job -} - -Get-Volume | Out-String | Write-Output - -$saved = ($(Get-Volume C).SizeRemaining - $available) / 1gb -$savedRounded = [math]::Round($saved, 3) -Write-Output "total space saved: $savedRounded GB" diff --git a/src/ci/scripts/free-disk-space.sh b/src/ci/scripts/free-disk-space.sh deleted file mode 100755 index 9264fe4de6d..00000000000 --- a/src/ci/scripts/free-disk-space.sh +++ /dev/null @@ -1,10 +0,0 @@ -#!/bin/bash -set -euo pipefail - -script_dir=$(dirname "$0") - -if [[ "${RUNNER_OS:-}" == "Windows" ]]; then - python3 "$script_dir/free-disk-space-windows-start.py" -else - $script_dir/free-disk-space-linux.sh -fi diff --git a/src/ci/scripts/free_disk_space_windows_util.py b/src/ci/scripts/free_disk_space_windows_util.py deleted file mode 100644 index 488187864c2..00000000000 --- a/src/ci/scripts/free_disk_space_windows_util.py +++ /dev/null @@ -1,29 +0,0 @@ -""" -Utilities for Windows disk space cleanup scripts. -""" - -import os -from pathlib import Path -import sys - - -def get_temp_dir() -> Path: - """Get the temporary directory set by GitHub Actions.""" - return Path(os.environ.get("RUNNER_TEMP")) - - -def get_pid_file() -> Path: - return get_temp_dir() / "free-disk-space.pid" - - -def get_log_file() -> Path: - return get_temp_dir() / "free-disk-space.log" - - -def run_main(main_fn): - exit_code = 1 - try: - exit_code = main_fn() - except Exception as e: - print(f"::error::{e}") - sys.exit(exit_code) diff --git a/src/doc/rustc-dev-guide/.github/workflows/rustc-pull.yml b/src/doc/rustc-dev-guide/.github/workflows/rustc-pull.yml index 04d6469aeaa..5ff3118960d 100644 --- a/src/doc/rustc-dev-guide/.github/workflows/rustc-pull.yml +++ b/src/doc/rustc-dev-guide/.github/workflows/rustc-pull.yml @@ -3,8 +3,8 @@ name: rustc-pull on: workflow_dispatch: schedule: - # Run at 04:00 UTC every Monday and Thursday - - cron: '0 4 * * 1,4' + # Run at 04:00 UTC every Monday + - cron: '0 4 * * 1' jobs: pull: diff --git a/src/doc/rustc-dev-guide/rust-version b/src/doc/rustc-dev-guide/rust-version index 6ec700b9b4d..f412399cc8c 100644 --- a/src/doc/rustc-dev-guide/rust-version +++ b/src/doc/rustc-dev-guide/rust-version @@ -1 +1 @@ -6bcdcc73bd11568fd85f5a38b58e1eda054ad1cd +a1dbb443527bd126452875eb5d5860c1d001d761 diff --git a/src/doc/rustc-dev-guide/src/SUMMARY.md b/src/doc/rustc-dev-guide/src/SUMMARY.md index 025a078ae5b..a1612738537 100644 --- a/src/doc/rustc-dev-guide/src/SUMMARY.md +++ b/src/doc/rustc-dev-guide/src/SUMMARY.md @@ -103,6 +103,7 @@ - [The `rustdoc-json` test suite](./rustdoc-internals/rustdoc-json-test-suite.md) - [GPU offload internals](./offload/internals.md) - [Installation](./offload/installation.md) + - [Usage](./offload/usage.md) - [Autodiff internals](./autodiff/internals.md) - [Installation](./autodiff/installation.md) - [How to debug](./autodiff/debugging.md) diff --git a/src/doc/rustc-dev-guide/src/about-this-guide.md b/src/doc/rustc-dev-guide/src/about-this-guide.md index 057e4a4ccee..f3957724967 100644 --- a/src/doc/rustc-dev-guide/src/about-this-guide.md +++ b/src/doc/rustc-dev-guide/src/about-this-guide.md @@ -74,7 +74,6 @@ You might also find the following sites useful: of the team procedures, active working groups, and the team calendar. - [std-dev-guide] -- a similar guide for developing the standard library. - [The t-compiler zulip][z] -- `#contribute` and `#wg-rustup` on [Discord](https://discord.gg/rust-lang). - The [Rust Internals forum][rif], a place to ask questions and discuss Rust's internals - The [Rust reference][rr], even though it doesn't specifically talk about diff --git a/src/doc/rustc-dev-guide/src/autodiff/internals.md b/src/doc/rustc-dev-guide/src/autodiff/internals.md index c1b31a0e4bd..c8e304f814b 100644 --- a/src/doc/rustc-dev-guide/src/autodiff/internals.md +++ b/src/doc/rustc-dev-guide/src/autodiff/internals.md @@ -17,7 +17,7 @@ fn main() { The detailed documentation for the `std::autodiff` module is available at [std::autodiff](https://doc.rust-lang.org/std/autodiff/index.html). -Differentiable programing is used in various fields like numerical computing, [solid mechanics][ratel], [computational chemistry][molpipx], [fluid dynamics][waterlily] or for Neural Network training via Backpropagation, [ODE solver][diffsol], [differentiable rendering][libigl], [quantum computing][catalyst], and climate simulations. +Differentiable programming is used in various fields like numerical computing, [solid mechanics][ratel], [computational chemistry][molpipx], [fluid dynamics][waterlily] or for Neural Network training via Backpropagation, [ODE solver][diffsol], [differentiable rendering][libigl], [quantum computing][catalyst], and climate simulations. [ratel]: https://gitlab.com/micromorph/ratel [molpipx]: https://arxiv.org/abs/2411.17011v diff --git a/src/doc/rustc-dev-guide/src/building/bootstrapping/debugging-bootstrap.md b/src/doc/rustc-dev-guide/src/building/bootstrapping/debugging-bootstrap.md index fb90c0fdb43..93b11c0690a 100644 --- a/src/doc/rustc-dev-guide/src/building/bootstrapping/debugging-bootstrap.md +++ b/src/doc/rustc-dev-guide/src/building/bootstrapping/debugging-bootstrap.md @@ -81,9 +81,11 @@ There are two orthogonal ways to control which kind of tracing logs you want: - If you select a level, all events/spans with an equal or higher priority level will be shown. 2. You can also control the log **target**, e.g. `bootstrap` or `bootstrap::core::config` or a custom target like `CONFIG_HANDLING` or `STEP`. - Custom targets are used to limit what kinds of spans you are interested in, as the `BOOTSTRAP_TRACING=trace` output can be quite verbose. Currently, you can use the following custom targets: - - `CONFIG_HANDLING`: show spans related to config handling - - `STEP`: show all executed steps. Note that executed commands have `info` event level. - - `COMMAND`: show all executed commands. Note that executed commands have `trace` event level. + - `CONFIG_HANDLING`: show spans related to config handling. + - `STEP`: show all executed steps. Executed commands have `info` event level. + - `COMMAND`: show all executed commands. Executed commands have `trace` event level. + - `IO`: show performed I/O operations. Executed commands have `trace` event level. + - Note that many I/O are currently not being traced. You can of course combine them (custom target logs are typically gated behind `TRACE` log level additionally): diff --git a/src/doc/rustc-dev-guide/src/building/bootstrapping/what-bootstrapping-does.md b/src/doc/rustc-dev-guide/src/building/bootstrapping/what-bootstrapping-does.md index da425d8d39b..bfd75ebda40 100644 --- a/src/doc/rustc-dev-guide/src/building/bootstrapping/what-bootstrapping-does.md +++ b/src/doc/rustc-dev-guide/src/building/bootstrapping/what-bootstrapping-does.md @@ -23,7 +23,7 @@ Note that this documentation mostly covers user-facing information. See ### Overview -- Stage 0: the pre-compiled compiler +- Stage 0: the pre-compiled compiler and standard library - Stage 1: from current code, by an earlier compiler - Stage 2: the truly current compiler - Stage 3: the same-result test @@ -192,7 +192,7 @@ include, but are not limited to: artifacts'). If you're working on the standard library, this is normally the test command you want. - `./x build --stage 0` means to build with the stage0 `rustc`. -- `./x doc --stage 0` means to document using the stage0 `rustdoc`. +- `./x doc --stage 1` means to document using the stage0 `rustdoc`. #### Examples of what *not* to do @@ -211,7 +211,7 @@ include, but are not limited to: In short, _stage 0 uses the `stage0` compiler to create `stage0` artifacts which will later be uplifted to be the stage1 compiler_. -In each stage, two major steps are performed: +In each stage besides 0, two major steps are performed: 1. `std` is compiled by the stage N compiler. 2. That `std` is linked to programs built by the stage N compiler, including the diff --git a/src/doc/rustc-dev-guide/src/diagnostics/error-codes.md b/src/doc/rustc-dev-guide/src/diagnostics/error-codes.md index 1b6b87e4c8d..1693432b90d 100644 --- a/src/doc/rustc-dev-guide/src/diagnostics/error-codes.md +++ b/src/doc/rustc-dev-guide/src/diagnostics/error-codes.md @@ -20,7 +20,7 @@ explanations should help users understand why their code cannot be accepted by the compiler. Rust prides itself on helpful error messages and long-form explanations are no exception. However, before error explanations are overhauled[^new-explanations] it is a bit open as to how exactly they should be -written, as always: ask your reviewer or ask around on the Rust Discord or Zulip. +written, as always: ask your reviewer or ask around on the Rust Zulip. [^new-explanations]: See the draft RFC [here][new-explanations-rfc]. diff --git a/src/doc/rustc-dev-guide/src/getting-started.md b/src/doc/rustc-dev-guide/src/getting-started.md index 04d2e37732f..87e26d37968 100644 --- a/src/doc/rustc-dev-guide/src/getting-started.md +++ b/src/doc/rustc-dev-guide/src/getting-started.md @@ -11,7 +11,6 @@ quick guide for the most useful things. For more information, [see this chapter on how to build and run the compiler](./building/how-to-build-and-run.md). [internals]: https://internals.rust-lang.org -[rust-discord]: http://discord.gg/rust-lang [rust-zulip]: https://rust-lang.zulipchat.com [coc]: https://www.rust-lang.org/policies/code-of-conduct [walkthrough]: ./walkthrough.md @@ -20,8 +19,7 @@ chapter on how to build and run the compiler](./building/how-to-build-and-run.md ## Asking Questions If you have questions, please make a post on the [Rust Zulip server][rust-zulip] or -[internals.rust-lang.org][internals]. If you are contributing to Rustup, be aware they are not on -Zulip - you can ask questions in `#wg-rustup` [on Discord][rust-discord]. +[internals.rust-lang.org][internals]. See the [list of teams and working groups][governance] and [the Community page][community] on the official website for more resources. @@ -30,19 +28,23 @@ official website for more resources. As a reminder, all contributors are expected to follow our [Code of Conduct][coc]. -The compiler team (or `t-compiler`) usually hangs out in Zulip [in this -"stream"][z]; it will be easiest to get questions answered there. +The compiler team (or `t-compiler`) usually hangs out in Zulip in +[the #t-compiler channel][z-t-compiler]; +questions about how the compiler works can go in [#t-compiler/help][z-help]. -[z]: https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler +[z-t-compiler]: https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler +[z-help]: https://rust-lang.zulipchat.com/#narrow/channel/182449-t-compiler.2Fhelp **Please ask questions!** A lot of people report feeling that they are "wasting -expert time", but nobody on `t-compiler` feels this way. Contributors are +expert's time", but nobody on `t-compiler` feels this way. Contributors are important to us. Also, if you feel comfortable, prefer public topics, as this means others can see the questions and answers, and perhaps even integrate them back into this guide :) +**Tip**: If you're not a native English speaker and feel unsure about writing, try using a translator to help. But avoid using LLM tools that generate long, complex words. In daily teamwork, **simple and clear words** are best for easy understanding. Even small typos or grammar mistakes can make you seem more human, and people connect better with humans. + ### Experts Not all `t-compiler` members are experts on all parts of `rustc`; it's a @@ -162,15 +164,12 @@ incredibly helpful: - [Triaging issues][triage]: categorizing, replicating, and minimizing issues is very helpful to the Rust maintainers. - [Working groups][wg]: there are a bunch of working groups on a wide variety of rust-related things. -- Answer questions in the _Get Help!_ channels on the [Rust Discord - server][rust-discord], on [users.rust-lang.org][users], or on - [StackOverflow][so]. +- Answer questions on [users.rust-lang.org][users], or on [Stack Overflow][so]. - Participate in the [RFC process](https://github.com/rust-lang/rfcs). - Find a [requested community library][community-library], build it, and publish it to [Crates.io](http://crates.io). Easier said than done, but very, very valuable! -[rust-discord]: https://discord.gg/rust-lang [users]: https://users.rust-lang.org/ [so]: http://stackoverflow.com/questions/tagged/rust [community-library]: https://github.com/rust-lang/rfcs/labels/A-community-library diff --git a/src/doc/rustc-dev-guide/src/git.md b/src/doc/rustc-dev-guide/src/git.md index 447c6fd4546..8f0511a4548 100644 --- a/src/doc/rustc-dev-guide/src/git.md +++ b/src/doc/rustc-dev-guide/src/git.md @@ -338,13 +338,13 @@ your fork with `git push --force-with-lease`. ### Keeping things up to date -The above section on [Rebasing](#rebasing) is a specific +The [above section](#rebasing) is a specific guide on rebasing work and dealing with merge conflicts. Here is some general advice about how to keep your local repo up-to-date with upstream changes: Using `git pull upstream master` while on your local master branch regularly -will keep it up-to-date. You will also want to rebase your feature branches +will keep it up-to-date. You will also want to keep your feature branches up-to-date as well. 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We will consume the raw stream of tokens and output a binding of metavariables to corresponding token trees. The parsing session can be used to report parser errors. -- a `matcher` variable is a sequence of [`MatcherLoc`]s that we want to match - the token stream against. They're converted from token trees before matching. +- a `matcher` variable is a sequence of [`MatcherLoc`]s that we want to match the token stream + against. They're converted from the original token trees in the macro's definition before + matching. [`MatcherLoc`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_expand/mbe/macro_parser/enum.MatcherLoc.html @@ -544,41 +545,26 @@ The full interface is defined [here][code_parse_int]. The macro parser does pretty much exactly the same as a normal regex parser with one exception: in order to parse different types of metavariables, such as `ident`, `block`, `expr`, etc., the macro parser must call back to the normal -Rust parser. Both the definition and invocation of macros are parsed using -the parser in a process which is non-intuitively self-referential. - -The code to parse macro _definitions_ is in -[`compiler/rustc_expand/src/mbe/macro_rules.rs`][code_mr]. It defines the -pattern for matching a macro definition as `$( $lhs:tt => $rhs:tt );+`. In -other words, a `macro_rules` definition should have in its body at least one -occurrence of a token tree followed by `=>` followed by another token tree. -When the compiler comes to a `macro_rules` definition, it uses this pattern to -match the two token trees per the rules of the definition of the macro, _thereby -utilizing the macro parser itself_. In our example definition, the -metavariable `$lhs` would match the patterns of both arms: `(print -$mvar:ident)` and `(print twice $mvar:ident)`. And `$rhs` would match the -bodies of both arms: `{ println!("{}", $mvar); }` and `{ println!("{}", $mvar); -println!("{}", $mvar); }`. The parser keeps this knowledge around for when it -needs to expand a macro invocation. - -When the compiler comes to a macro invocation, it parses that invocation using -a NFA-based macro parser described above. However, the matcher variable -used is the first token tree (`$lhs`) extracted from the arms of the macro -_definition_. Using our example, we would try to match the token stream `print -foo` from the invocation against the matchers `print $mvar:ident` and `print -twice $mvar:ident` that we previously extracted from the definition. The -algorithm is exactly the same, but when the macro parser comes to a place in the -current matcher where it needs to match a _non-terminal_ (e.g. `$mvar:ident`), -it calls back to the normal Rust parser to get the contents of that -non-terminal. In this case, the Rust parser would look for an `ident` token, -which it finds (`foo`) and returns to the macro parser. Then, the macro parser -proceeds in parsing as normal. Also, note that exactly one of the matchers from -the various arms should match the invocation; if there is more than one match, -the parse is ambiguous, while if there are no matches at all, there is a syntax +Rust parser. + +The code to parse macro definitions is in [`compiler/rustc_expand/src/mbe/macro_rules.rs`][code_mr]. +For more information about the macro parser's implementation, see the comments in +[`compiler/rustc_expand/src/mbe/macro_parser.rs`][code_mp]. + +Using our example, we would try to match the token stream `print foo` from the invocation against +the matchers `print $mvar:ident` and `print twice $mvar:ident` that we previously extracted from the +rules in the macro definition. When the macro parser comes to a place in the current matcher where +it needs to match a _non-terminal_ (e.g. `$mvar:ident`), it calls back to the normal Rust parser to +get the contents of that non-terminal. In this case, the Rust parser would look for an `ident` +token, which it finds (`foo`) and returns to the macro parser. Then, the macro parser continues +parsing. + +Note that exactly one of the matchers from the various rules should match the invocation; if there is +more than one match, the parse is ambiguous, while if there are no matches at all, there is a syntax error. -For more information about the macro parser's implementation, see the comments -in [`compiler/rustc_expand/src/mbe/macro_parser.rs`][code_mp]. +Assuming exactly one rule matches, macro expansion will then *transcribe* the right-hand side of the +rule, substituting the values of any matches it captured when matching against the left-hand side. ## Procedural Macros diff --git a/src/doc/rustc-dev-guide/src/offload/installation.md b/src/doc/rustc-dev-guide/src/offload/installation.md index b376e962ff6..d1ebf33ac17 100644 --- a/src/doc/rustc-dev-guide/src/offload/installation.md +++ b/src/doc/rustc-dev-guide/src/offload/installation.md @@ -1,6 +1,6 @@ # Installation -In the future, `std::offload` should become available in nightly builds for users. For now, everyone still needs to build rustc from source. +`std::offload` is partly available in nightly builds for users. For now, everyone however still needs to build rustc from source to use all features of it. ## Build instructions @@ -42,30 +42,3 @@ run ``` ./x test --stage 1 tests/codegen-llvm/gpu_offload ``` - -## Usage -It is important to use a clang compiler build on the same llvm as rustc. Just calling clang without the full path will likely use your system clang, which probably will be incompatible. -``` -/absolute/path/to/rust/build/x86_64-unknown-linux-gnu/stage1/bin/rustc --edition=2024 --crate-type cdylib src/main.rs --emit=llvm-ir -O -C lto=fat -Cpanic=abort -Zoffload=Enable -/absolute/path/to/rust/build/x86_64-unknown-linux-gnu/llvm/bin/clang++ -fopenmp --offload-arch=native -g -O3 main.ll -o main -save-temps -LIBOMPTARGET_INFO=-1 ./main -``` -The first step will generate a `main.ll` file, which has enough instructions to cause the offload runtime to move data to and from a gpu. -The second step will use clang as the compilation driver to compile our IR file down to a working binary. Only a very small Rust subset will work out of the box here, unless -you use features like build-std, which are not covered by this guide. Look at the codegen test to get a feeling for how to write a working example. -In the last step you can run your binary, if all went well you will see a data transfer being reported: -``` -omptarget device 0 info: Entering OpenMP data region with being_mapper at unknown:0:0 with 1 arguments: -omptarget device 0 info: tofrom(unknown)[1024] -omptarget device 0 info: Creating new map entry with HstPtrBase=0x00007fffffff9540, HstPtrBegin=0x00007fffffff9540, TgtAllocBegin=0x0000155547200000, TgtPtrBegin=0x0000155547200000, Size=1024, DynRefCount=1, HoldRefCount=0, Name=unknown -omptarget device 0 info: Copying data from host to device, HstPtr=0x00007fffffff9540, TgtPtr=0x0000155547200000, Size=1024, Name=unknown -omptarget device 0 info: OpenMP Host-Device pointer mappings after block at unknown:0:0: -omptarget device 0 info: Host Ptr Target Ptr Size (B) DynRefCount HoldRefCount Declaration -omptarget device 0 info: 0x00007fffffff9540 0x0000155547200000 1024 1 0 unknown at unknown:0:0 -// some other output -omptarget device 0 info: Exiting OpenMP data region with end_mapper at unknown:0:0 with 1 arguments: -omptarget device 0 info: tofrom(unknown)[1024] -omptarget device 0 info: Mapping exists with HstPtrBegin=0x00007fffffff9540, TgtPtrBegin=0x0000155547200000, Size=1024, DynRefCount=0 (decremented, delayed deletion), HoldRefCount=0 -omptarget device 0 info: Copying data from device to host, TgtPtr=0x0000155547200000, HstPtr=0x00007fffffff9540, Size=1024, Name=unknown -omptarget device 0 info: Removing map entry with HstPtrBegin=0x00007fffffff9540, TgtPtrBegin=0x0000155547200000, Size=1024, Name=unknown -``` diff --git a/src/doc/rustc-dev-guide/src/offload/usage.md b/src/doc/rustc-dev-guide/src/offload/usage.md new file mode 100644 index 00000000000..9f519984d9b --- /dev/null +++ b/src/doc/rustc-dev-guide/src/offload/usage.md @@ -0,0 +1,112 @@ +# Usage + +This feature is work-in-progress, and not ready for usage. The instructions here are for contributors, or people interested in following the latest progress. +We currently work on launching the following Rust kernel on the GPU. To follow along, copy it to a `src/lib.rs` file. + +```rust +#![feature(abi_gpu_kernel)] +#![no_std] + +#[cfg(target_os = "linux")] +extern crate libc; +#[cfg(target_os = "linux")] +use libc::c_char; + +use core::mem; + +#[panic_handler] +fn panic(_: &core::panic::PanicInfo) -> ! { + loop {} +} + +#[cfg(target_os = "linux")] +#[unsafe(no_mangle)] +#[inline(never)] +fn main() { + let array_c: *mut [f64; 256] = + unsafe { libc::calloc(256, (mem::size_of::<f64>()) as libc::size_t) as *mut [f64; 256] }; + let output = c"The first element is zero %f\n"; + let output2 = c"The first element is NOT zero %f\n"; + let output3 = c"The second element is %f\n"; + unsafe { + let val: *const c_char = if (*array_c)[0] < 0.1 { + output.as_ptr() + } else { + output2.as_ptr() + }; + libc::printf(val, (*array_c)[0]); + } + + unsafe { + kernel_1(array_c); + } + core::hint::black_box(&array_c); + unsafe { + let val: *const c_char = if (*array_c)[0] < 0.1 { + output.as_ptr() + } else { + output2.as_ptr() + }; + libc::printf(val, (*array_c)[0]); + libc::printf(output3.as_ptr(), (*array_c)[1]); + } +} + +#[cfg(target_os = "linux")] +unsafe extern "C" { + pub fn kernel_1(array_b: *mut [f64; 256]); +} +``` + +## Compile instructions +It is important to use a clang compiler build on the same llvm as rustc. Just calling clang without the full path will likely use your system clang, which probably will be incompatible. So either substitute clang/lld invocations below with absolute path, or set your `PATH` accordingly. + +First we generate the host (cpu) code. The first build is just to compile libc, take note of the hashed path. Then we call rustc directly to build our host code, while providing the libc artifact to rustc. +``` +cargo +offload build -r -v +rustc +offload --edition 2024 src/lib.rs -g --crate-type cdylib -C opt-level=3 -C panic=abort -C lto=fat -L dependency=/absolute_path_to/target/release/deps --extern libc=/absolute_path_to/target/release/deps/liblibc-<HASH>.rlib --emit=llvm-bc,llvm-ir -Zoffload=Enable -Zunstable-options +``` + +Now we generate the device code. Replace the target-cpu with the right code for your gpu. +``` +RUSTFLAGS="-Ctarget-cpu=gfx90a --emit=llvm-bc,llvm-ir" cargo +offload build -Zunstable-options -r -v --target amdgcn-amd-amdhsa -Zbuild-std=core +``` + +Now find the <libname>.ll under target/amdgcn-amd-amdhsa folder and copy it to a device.ll file (or adjust the file names below). +If you work on an NVIDIA or Intel gpu, please adjust the names acordingly and open an issue to share your results (either if you succeed or fail). +First we compile our .ll files (good for manual inspections) to .bc files and clean up leftover artifacts. The cleanup is important, otherwise caching might interfere on following runs. +``` +opt lib.ll -o lib.bc +opt device.ll -o device.bc +rm *.o +rm bare.amdgcn.gfx90a.img* +``` + +``` +clang-offload-packager" "-o" "host.out" "--image=file=device.bc,triple=amdgcn-amd-amdhsa,arch=gfx90a,kind=openmp" + +clang-21" "-cc1" "-triple" "x86_64-unknown-linux-gnu" "-S" "-save-temps=cwd" "-disable-free" "-clear-ast-before-backend" "-main-file-name" "lib.rs" "-mrelocation-model" "pic" "-pic-level" "2" "-pic-is-pie" "-mframe-pointer=all" "-fmath-errno" "-ffp-contract=on" "-fno-rounding-math" "-mconstructor-aliases" "-funwind-tables=2" "-target-cpu" "x86-64" "-tune-cpu" "generic" "-resource-dir" "/<ABSOLUTE_PATH_TO>/rust/build/x86_64-unknown-linux-gnu/llvm/lib/clang/21" "-ferror-limit" "19" "-fopenmp" "-fopenmp-offload-mandatory" "-fgnuc-version=4.2.1" "-fskip-odr-check-in-gmf" "-fembed-offload-object=host.out" "-fopenmp-targets=amdgcn-amd-amdhsa" "-faddrsig" "-D__GCC_HAVE_DWARF2_CFI_ASM=1" "-o" "host.s" "-x" "ir" "lib.bc" + +clang-21" "-cc1as" "-triple" "x86_64-unknown-linux-gnu" "-filetype" "obj" "-main-file-name" "lib.rs" "-target-cpu" "x86-64" "-mrelocation-model" "pic" "-o" "host.o" "host.s" + +clang-linker-wrapper" "--should-extract=gfx90a" "--device-compiler=amdgcn-amd-amdhsa=-g" "--device-compiler=amdgcn-amd-amdhsa=-save-temps=cwd" "--device-linker=amdgcn-amd-amdhsa=-lompdevice" "--host-triple=x86_64-unknown-linux-gnu" "--save-temps" "--linker-path=/ABSOlUTE_PATH_TO/rust/build/x86_64-unknown-linux-gnu/lld/bin/ld.lld" "--hash-style=gnu" "--eh-frame-hdr" "-m" "elf_x86_64" "-pie" "-dynamic-linker" "/lib64/ld-linux-x86-64.so.2" "-o" "bare" "/lib/../lib64/Scrt1.o" "/lib/../lib64/crti.o" "/ABSOLUTE_PATH_TO/crtbeginS.o" "-L/ABSOLUTE_PATH_TO/rust/build/x86_64-unknown-linux-gnu/llvm/bin/../lib/x86_64-unknown-linux-gnu" "-L/ABSOLUTE_PATH_TO/rust/build/x86_64-unknown-linux-gnu/llvm/lib/clang/21/lib/x86_64-unknown-linux-gnu" "-L/lib/../lib64" "-L/usr/lib64" "-L/lib" "-L/usr/lib" "host.o" "-lstdc++" "-lm" "-lomp" "-lomptarget" "-L/ABSOLUTE_PATH_TO/rust/build/x86_64-unknown-linux-gnu/llvm/lib" "-lgcc_s" "-lgcc" "-lpthread" "-lc" "-lgcc_s" "-lgcc" "/ABSOLUTE_PATH_TO/crtendS.o" "/lib/../lib64/crtn.o" +``` + +Especially for the last command I recommend to not fix the paths, but rather just re-generate them by copying a bare-mode openmp example and compiling it with your clang. By adding `-###` to your clang invocation, you can see the invidual steps. +``` +myclang++ -fuse-ld=lld -O3 -fopenmp -fopenmp-offload-mandatory --offload-arch=gfx90a omp_bare.cpp -o main -### +``` + +In the final step, you can now run your binary + +``` +./main +The first element is zero 0.000000 +The first element is NOT zero 21.000000 +The second element is 0.000000 +``` + +To receive more information about the memory transfer, you can enable info printing with +``` +LIBOMPTARGET_INFO=-1 ./main +``` diff --git a/src/doc/rustc-dev-guide/src/queries/example-0.png b/src/doc/rustc-dev-guide/src/queries/example-0.png index 14b46c44f7d..dd67d5f2ef1 100644 --- a/src/doc/rustc-dev-guide/src/queries/example-0.png +++ b/src/doc/rustc-dev-guide/src/queries/example-0.png Binary files differdiff --git a/src/doc/rustc-dev-guide/src/solve/candidate-preference.md b/src/doc/rustc-dev-guide/src/solve/candidate-preference.md index 89605294735..8b28f56760a 100644 --- a/src/doc/rustc-dev-guide/src/solve/candidate-preference.md +++ b/src/doc/rustc-dev-guide/src/solve/candidate-preference.md @@ -95,7 +95,7 @@ fn overflow<T: Trait>() { ``` This preference causes a lot of issues. See [#24066]. Most of the -issues are caused by prefering where-bounds over impls even if the where-bound guides type inference: +issues are caused by preferring where-bounds over impls even if the where-bound guides type inference: ```rust trait Trait<T> { fn call_me(&self, x: T) {} diff --git a/src/doc/rustc-dev-guide/src/tests/ci.md b/src/doc/rustc-dev-guide/src/tests/ci.md index 750e4fa1a0f..a8cc959124f 100644 --- a/src/doc/rustc-dev-guide/src/tests/ci.md +++ b/src/doc/rustc-dev-guide/src/tests/ci.md @@ -84,16 +84,15 @@ resources to run the full test suite for each commit on every PR. > Thus, it is a good idea to run `./x doc xxx` locally for any doc comment > changes to help catch these early. -PR jobs are defined in the `pr` section of [`jobs.yml`]. They run under the -`rust-lang/rust` repository, and their results can be observed directly on the -PR, in the "CI checks" section at the bottom of the PR page. +PR jobs are defined in the `pr` section of [`jobs.yml`]. Their results can be observed +directly on the PR, in the "CI checks" section at the bottom of the PR page. ### Auto builds Before a commit can be merged into the `master` branch, it needs to pass our complete test suite. We call this an `auto` build. This build runs tens of CI jobs that exercise various tests across operating systems and targets. The full -test suite is quite slow; it can take two hours or more until all the `auto` CI +test suite is quite slow; it can take several hours until all the `auto` CI jobs finish. Most platforms only run the build steps, some run a restricted set of tests, @@ -136,14 +135,21 @@ By default, if you send a comment with `@bors try`, the jobs defined in the `try [`jobs.yml`] will be executed. We call this mode a "fast try build". Such a try build will not execute any tests, and it will allow compilation warnings. It is useful when you want to get an optimized toolchain as fast as possible, for a crater run or performance benchmarks, -even if it might not be working fully correctly. - -If you want to run a custom CI job in a try build and make sure that it passes all tests and does -not produce any compilation warnings, you can select CI jobs to be executed by adding lines -containing `try-job: <job pattern>` to the PR description. All such specified jobs will be executed -in the try build once the `@bors try` command is used on the PR. - -Each pattern can either be an exact name of a job or a glob pattern that matches multiple jobs, +even if it might not be working fully correctly. If you want to do a full build for the default try job, +specify its job name in a job pattern (explained below). + +If you want to run custom CI job(s) in a try build and make sure that they pass all tests and do +not produce any compilation warnings, you can select CI jobs to be executed by specifying a *job pattern*, +which can be used in one of two ways: +- You can add a set of `try-job: <job pattern>` directives to the PR description (described below) and then + simply run `@bors try`. CI will read these directives and run the jobs that you have specified. This is + useful if you want to rerun the same set of try jobs multiple times, after incrementally modifying a PR. +- You can specify the job pattern using the `jobs` parameter of the try command: `@bors try jobs=<job pattern>`. + This is useful for one-off try builds with specific jobs. Note that the `jobs` parameter has a higher priority + than the PR description directives. + - There can also be multiple patterns specified, e.g. `@bors try jobs=job1,job2,job3`. + +Each job pattern can either be an exact name of a job or a glob pattern that matches multiple jobs, for example `*msvc*` or `*-alt`. You can start at most 20 jobs in a single try build. When using glob patterns, you might want to wrap them in backticks (`` ` ``) to avoid GitHub rendering the pattern as Markdown. @@ -182,26 +188,19 @@ of [`jobs.yml`]: > However, it can be less flexible because you cannot adjust the set of tests > that are exercised this way. -Try jobs are defined in the `try` section of [`jobs.yml`]. They are executed on -the `try` branch under the `rust-lang/rust` repository and +Try builds are executed on the `try` branch under the `rust-lang/rust` repository and their results can be seen [here](https://github.com/rust-lang/rust/actions), although usually you will be notified of the result by a comment made by bors on the corresponding PR. -Note that if you start the default try job using `@bors try`, it will skip building several `dist` components and running post-optimization tests, to make the build duration shorter. If you want to execute the full build as it would happen before a merge, add an explicit `try-job` pattern with the name of the default try job (currently `dist-x86_64-linux`). +Multiple try builds can execute concurrently across different PRs, but there can be at most +a single try build running on a single PR at any given time. -Multiple try builds can execute concurrently across different PRs. - -<div class="warning"> - -Bors identifies try jobs by commit hash. This means that if you have two PRs -containing the same (latest) commits, running `@bors try` will result in the -*same* try job and it really confuses `bors`. Please refrain from doing so. - -</div> +Note that try builds are handled using the new [bors][new-bors] implementation. [rustc-perf]: https://github.com/rust-lang/rustc-perf [crater]: https://github.com/rust-lang/crater +[new-bors]: https://github.com/rust-lang/bors ### Modifying CI jobs diff --git a/src/doc/rustc-dev-guide/src/tests/directives.md b/src/doc/rustc-dev-guide/src/tests/directives.md index f4ba9a044e6..fbbeb7e97d3 100644 --- a/src/doc/rustc-dev-guide/src/tests/directives.md +++ b/src/doc/rustc-dev-guide/src/tests/directives.md @@ -111,6 +111,7 @@ for more details. | `forbid-output` | A pattern which must not appear in stderr/`cfail` output | `ui`, `incremental` | Regex pattern | | `run-flags` | Flags passed to the test executable | `ui` | Arbitrary flags | | `known-bug` | No error annotation needed due to known bug | `ui`, `crashes`, `incremental` | Issue number `#123456` | +| `compare-output-by-lines` | Compare the output by lines, rather than as a single string | All | N/A | [^check_stdout]: presently <!-- date-check: Oct 2024 --> this has a weird quirk where the test binary's stdout and stderr gets concatenated and then diff --git a/src/doc/rustc-dev-guide/src/tests/ecosystem-test-jobs/fuchsia.md b/src/doc/rustc-dev-guide/src/tests/ecosystem-test-jobs/fuchsia.md index b19d94d6ff7..75cf782a770 100644 --- a/src/doc/rustc-dev-guide/src/tests/ecosystem-test-jobs/fuchsia.md +++ b/src/doc/rustc-dev-guide/src/tests/ecosystem-test-jobs/fuchsia.md @@ -18,12 +18,8 @@ Fuchsia builds as part of the suite of bors tests that run before a pull request is merged. If you are worried that a pull request might break the Fuchsia builder and want -to test it out before submitting it to the bors queue, simply add this line to -your PR description: - -> try-job: x86_64-fuchsia - -Then when you `@bors try` it will pick the job that builds Fuchsia. +to test it out before submitting it to the bors queue, simply ask bors to run +the try job that builds the Fuchsia integration: `@bors try jobs=x86_64-fuchsia`. ## Building Fuchsia locally diff --git a/src/doc/rustc-dev-guide/src/tests/ecosystem-test-jobs/rust-for-linux.md b/src/doc/rustc-dev-guide/src/tests/ecosystem-test-jobs/rust-for-linux.md index d549ec6fca5..a6a7374b811 100644 --- a/src/doc/rustc-dev-guide/src/tests/ecosystem-test-jobs/rust-for-linux.md +++ b/src/doc/rustc-dev-guide/src/tests/ecosystem-test-jobs/rust-for-linux.md @@ -40,12 +40,8 @@ this sysroot. RfL uses several unstable compiler/language features, therefore this workflow notifies us if a given compiler change would break it. If you are worried that a pull request might break the Rust for Linux builder -and want to test it out before submitting it to the bors queue, simply add this -line to your PR description: - -> try-job: x86_64-rust-for-linux - -Then when you `@bors try` it will pick the job that builds the Rust for Linux -integration. +and want to test it out before submitting it to the bors queue, simply ask +bors to run the try job that builds the Rust for Linux integration: +`@bors try jobs=x86_64-rust-for-linux`. [rfl-ping]: ../../notification-groups/rust-for-linux.md diff --git a/src/doc/rustc-dev-guide/src/tests/ui.md b/src/doc/rustc-dev-guide/src/tests/ui.md index 25dd5814cf6..d3a2c406402 100644 --- a/src/doc/rustc-dev-guide/src/tests/ui.md +++ b/src/doc/rustc-dev-guide/src/tests/ui.md @@ -95,6 +95,7 @@ will check for output files: [Normalization](#normalization)). - `dont-check-compiler-stderr` — Ignores stderr from the compiler. - `dont-check-compiler-stdout` — Ignores stdout from the compiler. +- `compare-output-by-lines` — Some tests have non-deterministic orders of output, so we need to compare by lines. UI tests run with `-Zdeduplicate-diagnostics=no` flag which disables rustc's built-in diagnostic deduplication mechanism. This means you may see some diff --git a/src/doc/rustc/src/codegen-options/index.md b/src/doc/rustc/src/codegen-options/index.md index 07eafdf4c4c..445b10188e3 100644 --- a/src/doc/rustc/src/codegen-options/index.md +++ b/src/doc/rustc/src/codegen-options/index.md @@ -375,12 +375,12 @@ linking time. It takes one of the following values: * `y`, `yes`, `on`, `true`, `fat`, or no value: perform "fat" LTO which attempts to perform optimizations across all crates within the dependency graph. -* `n`, `no`, `off`, `false`: disables LTO. * `thin`: perform ["thin" LTO](http://blog.llvm.org/2016/06/thinlto-scalable-and-incremental-lto.html). This is similar to "fat", but takes substantially less time to run while still achieving performance gains similar to "fat". For larger projects like the Rust compiler, ThinLTO can even result in better performance than fat LTO. +* `n`, `no`, `off`, `false`: disables LTO. If `-C lto` is not specified, then the compiler will attempt to perform "thin local LTO" which performs "thin" LTO on the local crate only across its diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md index 89b43cda9b9..3bf87994297 100644 --- a/src/doc/rustc/src/platform-support.md +++ b/src/doc/rustc/src/platform-support.md @@ -36,7 +36,6 @@ target | notes `aarch64-unknown-linux-gnu` | ARM64 Linux (kernel 4.1+, glibc 2.17+) [`i686-pc-windows-msvc`](platform-support/windows-msvc.md) | 32-bit MSVC (Windows 10+, Windows Server 2016+, Pentium 4) [^x86_32-floats-return-ABI] [^win32-msvc-alignment] `i686-unknown-linux-gnu` | 32-bit Linux (kernel 3.2+, glibc 2.17+, Pentium 4) [^x86_32-floats-return-ABI] -[`x86_64-apple-darwin`](platform-support/apple-darwin.md) | 64-bit macOS (10.12+, Sierra+) [`x86_64-pc-windows-gnu`](platform-support/windows-gnu.md) | 64-bit MinGW (Windows 10+, Windows Server 2016+) [`x86_64-pc-windows-msvc`](platform-support/windows-msvc.md) | 64-bit MSVC (Windows 10+, Windows Server 2016+) `x86_64-unknown-linux-gnu` | 64-bit Linux (kernel 3.2+, glibc 2.17+) @@ -106,6 +105,7 @@ target | notes [`riscv64gc-unknown-linux-gnu`](platform-support/riscv64gc-unknown-linux-gnu.md) | RISC-V Linux (kernel 4.20+, glibc 2.29) [`riscv64gc-unknown-linux-musl`](platform-support/riscv64gc-unknown-linux-musl.md) | RISC-V Linux (kernel 4.20+, musl 1.2.3) [`s390x-unknown-linux-gnu`](platform-support/s390x-unknown-linux-gnu.md) | S390x Linux (kernel 3.2+, glibc 2.17) +[`x86_64-apple-darwin`](platform-support/apple-darwin.md) | 64-bit macOS (10.12+, Sierra+) [`x86_64-pc-windows-gnullvm`](platform-support/windows-gnullvm.md) | 64-bit x86 MinGW (Windows 10+), LLVM ABI [`x86_64-unknown-freebsd`](platform-support/freebsd.md) | 64-bit x86 FreeBSD [`x86_64-unknown-illumos`](platform-support/illumos.md) | illumos @@ -270,6 +270,7 @@ target | std | host | notes [`aarch64-unknown-trusty`](platform-support/trusty.md) | ✓ | | [`aarch64-uwp-windows-msvc`](platform-support/uwp-windows-msvc.md) | ✓ | | [`aarch64-wrs-vxworks`](platform-support/vxworks.md) | ✓ | | ARM64 VxWorks OS +[`aarch64_be-unknown-hermit`](platform-support/hermit.md) | ✓ | | ARM64 Hermit (big-endian) `aarch64_be-unknown-linux-gnu` | ✓ | ✓ | ARM64 Linux (big-endian) `aarch64_be-unknown-linux-gnu_ilp32` | ✓ | ✓ | ARM64 Linux (big-endian, ILP32 ABI) [`aarch64_be-unknown-netbsd`](platform-support/netbsd.md) | ✓ | ✓ | ARM64 NetBSD (big-endian) diff --git a/src/doc/rustc/src/platform-support/apple-darwin.md b/src/doc/rustc/src/platform-support/apple-darwin.md index e41aee9bdb2..bdbb3a663f1 100644 --- a/src/doc/rustc/src/platform-support/apple-darwin.md +++ b/src/doc/rustc/src/platform-support/apple-darwin.md @@ -4,9 +4,12 @@ Apple macOS targets. **Tier: 1** -- `x86_64-apple-darwin`: macOS on 64-bit x86. - `aarch64-apple-darwin`: macOS on ARM64 (M1-family or later Apple Silicon CPUs). +**Tier: 2** + +- `x86_64-apple-darwin`: macOS on 64-bit x86. + ## Target maintainers [@thomcc](https://github.com/thomcc) diff --git a/src/doc/rustc/src/platform-support/hermit.md b/src/doc/rustc/src/platform-support/hermit.md index 069c253bd38..8362d6f55fd 100644 --- a/src/doc/rustc/src/platform-support/hermit.md +++ b/src/doc/rustc/src/platform-support/hermit.md @@ -10,6 +10,7 @@ Target triplets available so far: - `x86_64-unknown-hermit` - `aarch64-unknown-hermit` +- `aarch64_be-unknown-hermit` - `riscv64gc-unknown-hermit` ## Target maintainers @@ -42,6 +43,7 @@ target = [ "<HOST_TARGET>", "x86_64-unknown-hermit", "aarch64-unknown-hermit", + "aarch64_be-unknown-hermit", "riscv64gc-unknown-hermit", ] diff --git a/src/doc/rustc/src/platform-support/openharmony.md b/src/doc/rustc/src/platform-support/openharmony.md index 3acdc3707a8..de3b83d6c2c 100644 --- a/src/doc/rustc/src/platform-support/openharmony.md +++ b/src/doc/rustc/src/platform-support/openharmony.md @@ -16,7 +16,7 @@ system. ## Target maintainers [@Amanieu](https://github.com/Amanieu) -[@lubinglun](https://github.com/lubinglun) +[@cceerczw](https://github.com/cceerczw) ## Requirements diff --git a/src/doc/rustc/src/platform-support/wasm32-wali-linux.md b/src/doc/rustc/src/platform-support/wasm32-wali-linux.md index 3213e2b0c8f..001159b0d32 100644 --- a/src/doc/rustc/src/platform-support/wasm32-wali-linux.md +++ b/src/doc/rustc/src/platform-support/wasm32-wali-linux.md @@ -31,7 +31,7 @@ This target is cross-compiled and requires an installation of the [WALI compiler > **Note**: Users can expect that new enabled-by-default Wasm features for LLVM are transitively incorporatable into this target -- see [wasm32-unknown-unknown](wasm32-unknown-unknown.md) for detailed information on WebAssembly features. -> **Note**: The WALI ABI is similar to default Clang wasm32 ABIs but *not identical*. The primary difference is 64-bit `long` types as opposed to 32-bit for wasm32. This is required to mantain minimum source code changes for 64-bit host platforms currently supported. This may change in the future as the spec evolves. +> **Note**: The WALI ABI is similar to default Clang wasm32 ABIs but *not identical*. The primary difference is 64-bit `long` types as opposed to 32-bit for wasm32. This is required to maintain minimum source code changes for 64-bit host platforms currently supported. This may change in the future as the spec evolves. ### Execution Running generated WALI binaries also requires a supported compliant engine implementation -- a working implementation in the [WebAssembly Micro-Runtime (WAMR)](https://github.com/arjunr2/WALI) is included in the repo. diff --git a/src/doc/rustc/src/target-tier-policy.md b/src/doc/rustc/src/target-tier-policy.md index a0acfdf0e4a..28d3dc32a63 100644 --- a/src/doc/rustc/src/target-tier-policy.md +++ b/src/doc/rustc/src/target-tier-policy.md @@ -534,10 +534,10 @@ tests, and will reject patches that fail to build or pass the testsuite on a target. We hold tier 1 targets to our highest standard of requirements. A proposed new tier 1 target must be reviewed and approved by the compiler team -based on these requirements. In addition, the release team must approve the -viability and value of supporting the target. For a tier 1 target, this will +based on these requirements. In addition, the infra team must approve the +viability of supporting the target. For a tier 1 target, this will typically take place via a full RFC proposing the target, to be jointly -reviewed and approved by the compiler team and release team. +reviewed and approved by the compiler team and infra team. In addition, the infrastructure team must approve the integration of the target into Continuous Integration (CI), and the tier 1 CI-related requirements. This @@ -617,7 +617,7 @@ including the infrastructure team in the RFC proposing the target. A tier 1 target may be demoted if it no longer meets these requirements but still meets the requirements for a lower tier. Any proposal for demotion of a tier 1 target requires a full RFC process, with approval by the compiler and -release teams. Any such proposal will be communicated widely to the Rust +infra teams. Any such proposal will be communicated widely to the Rust community, both when initially proposed and before being dropped from a stable release. A tier 1 target is highly unlikely to be directly removed without first being demoted to tier 2 or tier 3. (The amount of time between such @@ -628,7 +628,7 @@ planned and scheduled action.) Raising the baseline expectations of a tier 1 target (such as the minimum CPU features or OS version required) requires the approval of the compiler and -release teams, and should be widely communicated as well, but does not +infra teams, and should be widely communicated as well, but does not necessarily require a full RFC. ### Tier 1 with host tools @@ -638,11 +638,11 @@ host (such as `rustc` and `cargo`). This allows the target to be used as a development platform, not just a compilation target. A proposed new tier 1 target with host tools must be reviewed and approved by -the compiler team based on these requirements. In addition, the release team -must approve the viability and value of supporting host tools for the target. +the compiler team based on these requirements. In addition, the infra team +must approve the viability of supporting host tools for the target. For a tier 1 target, this will typically take place via a full RFC proposing the target, to be jointly reviewed and approved by the compiler team and -release team. +infra team. In addition, the infrastructure team must approve the integration of the target's host tools into Continuous Integration (CI), and the CI-related @@ -697,7 +697,7 @@ target with host tools may be demoted (including having its host tools dropped, or being demoted to tier 2 with host tools) if it no longer meets these requirements but still meets the requirements for a lower tier. Any proposal for demotion of a tier 1 target (with or without host tools) requires a full -RFC process, with approval by the compiler and release teams. Any such proposal +RFC process, with approval by the compiler and infra teams. Any such proposal will be communicated widely to the Rust community, both when initially proposed and before being dropped from a stable release. diff --git a/src/doc/rustdoc/src/unstable-features.md b/src/doc/rustdoc/src/unstable-features.md index 7bd2970eee7..bb28e3abbf3 100644 --- a/src/doc/rustdoc/src/unstable-features.md +++ b/src/doc/rustdoc/src/unstable-features.md @@ -796,3 +796,7 @@ will be split as follows: "you today?", ] ``` + +## `--generate-macro-expansion`: Generate macros expansion toggles in source code + +This flag enables the generation of toggles to expand macros in the HTML source code pages. diff --git a/src/doc/unstable-book/src/compiler-flags/indirect-branch-cs-prefix.md b/src/doc/unstable-book/src/compiler-flags/indirect-branch-cs-prefix.md new file mode 100644 index 00000000000..040e2d41701 --- /dev/null +++ b/src/doc/unstable-book/src/compiler-flags/indirect-branch-cs-prefix.md @@ -0,0 +1,19 @@ +# `indirect-branch-cs-prefix` + +The tracking issue for this feature is: https://github.com/rust-lang/rust/issues/116852. + +------------------------ + +Option `-Zindirect-branch-cs-prefix` controls whether a `cs` prefix is added to +`call` and `jmp` to indirect thunks. + +It is equivalent to [Clang]'s and [GCC]'s `-mindirect-branch-cs-prefix`. The +Linux kernel uses it for RETPOLINE builds. For details, see +[LLVM commit 6f867f910283] ("[X86] Support ``-mindirect-branch-cs-prefix`` for +call and jmp to indirect thunk") which introduces the feature. + +Only x86 and x86_64 are supported. + +[Clang]: https://clang.llvm.org/docs/ClangCommandLineReference.html#cmdoption-clang-mindirect-branch-cs-prefix +[GCC]: https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html#index-mindirect-branch-cs-prefix +[LLVM commit 6f867f910283]: https://github.com/llvm/llvm-project/commit/6f867f9102838ebe314c1f3661fdf95700386e5a diff --git a/src/doc/unstable-book/src/compiler-flags/randomize-layout.md b/src/doc/unstable-book/src/compiler-flags/randomize-layout.md index 84c6712bc23..81da0503d7f 100644 --- a/src/doc/unstable-book/src/compiler-flags/randomize-layout.md +++ b/src/doc/unstable-book/src/compiler-flags/randomize-layout.md @@ -7,7 +7,7 @@ The tracking issue for this feature is: [#106764](https://github.com/rust-lang/r The `-Zrandomize-layout` flag changes the layout algorithm for `repr(Rust)` types defined in the current crate from its normal optimization goals to pseudorandomly rearranging fields within the degrees of freedom provided by the largely unspecified default representation. This also affects type sizes and padding. -Downstream intantiations of generic types defined in a crate with randomization enabled will also be randomized. +Downstream instantiations of generic types defined in a crate with randomization enabled will also be randomized. It can be used to find unsafe code that accidentally relies on unspecified behavior. diff --git a/src/etc/completions/x.fish b/src/etc/completions/x.fish index 0b9af334214..544f9b97237 100644 --- a/src/etc/completions/x.fish +++ b/src/etc/completions/x.fish @@ -305,6 +305,7 @@ complete -c x -n "__fish_x_using_subcommand test" -l extra-checks -d 'comma-sepa complete -c x -n "__fish_x_using_subcommand test" -l compare-mode -d 'mode describing what file the actual ui output will be compared to' -r complete -c x -n "__fish_x_using_subcommand test" -l pass -d 'force {check,build,run}-pass tests to this mode' -r complete -c x -n "__fish_x_using_subcommand test" -l run -d 'whether to execute run-* tests' -r +complete -c x -n "__fish_x_using_subcommand test" -l test-codegen-backend -d 'Use a different codegen backend when running tests' -r complete -c x -n "__fish_x_using_subcommand test" -l config -d 'TOML configuration file for build' -r -F complete -c x -n "__fish_x_using_subcommand test" -l build-dir -d 'Build directory, overrides `build.build-dir` in `bootstrap.toml`' -r -f -a "(__fish_complete_directories)" complete -c x -n "__fish_x_using_subcommand test" -l build -d 'host target of the stage0 compiler' -r -f diff --git a/src/etc/completions/x.ps1 b/src/etc/completions/x.ps1 index 95cee4b6336..b03acf930f7 100644 --- a/src/etc/completions/x.ps1 +++ b/src/etc/completions/x.ps1 @@ -351,6 +351,7 @@ Register-ArgumentCompleter -Native -CommandName 'x' -ScriptBlock { [CompletionResult]::new('--compare-mode', '--compare-mode', [CompletionResultType]::ParameterName, 'mode describing what file the actual ui output will be compared to') [CompletionResult]::new('--pass', '--pass', [CompletionResultType]::ParameterName, 'force {check,build,run}-pass tests to this mode') [CompletionResult]::new('--run', '--run', [CompletionResultType]::ParameterName, 'whether to execute run-* tests') + [CompletionResult]::new('--test-codegen-backend', '--test-codegen-backend', [CompletionResultType]::ParameterName, 'Use a different codegen backend when running tests') [CompletionResult]::new('--config', '--config', [CompletionResultType]::ParameterName, 'TOML configuration file for build') [CompletionResult]::new('--build-dir', '--build-dir', [CompletionResultType]::ParameterName, 'Build directory, overrides `build.build-dir` in `bootstrap.toml`') [CompletionResult]::new('--build', '--build', [CompletionResultType]::ParameterName, 'host target of the stage0 compiler') diff --git a/src/etc/completions/x.py.fish b/src/etc/completions/x.py.fish index 6fba6a45623..08e4cd26ce8 100644 --- a/src/etc/completions/x.py.fish +++ b/src/etc/completions/x.py.fish @@ -305,6 +305,7 @@ complete -c x.py -n "__fish_x.py_using_subcommand test" -l extra-checks -d 'comm complete -c x.py -n "__fish_x.py_using_subcommand test" -l compare-mode -d 'mode describing what file the actual ui output will be compared to' -r complete -c x.py -n "__fish_x.py_using_subcommand test" -l pass -d 'force {check,build,run}-pass tests to this mode' -r complete -c x.py -n "__fish_x.py_using_subcommand test" -l run -d 'whether to execute run-* tests' -r +complete -c x.py -n "__fish_x.py_using_subcommand test" -l test-codegen-backend -d 'Use a different codegen backend when running tests' -r complete -c x.py -n "__fish_x.py_using_subcommand test" -l config -d 'TOML configuration file for build' -r -F complete -c x.py -n "__fish_x.py_using_subcommand test" -l build-dir -d 'Build directory, overrides `build.build-dir` in `bootstrap.toml`' -r -f -a "(__fish_complete_directories)" complete -c x.py -n "__fish_x.py_using_subcommand test" -l build -d 'host target of the stage0 compiler' -r -f diff --git a/src/etc/completions/x.py.ps1 b/src/etc/completions/x.py.ps1 index 458879a17a7..3d95d88af49 100644 --- a/src/etc/completions/x.py.ps1 +++ b/src/etc/completions/x.py.ps1 @@ -351,6 +351,7 @@ Register-ArgumentCompleter -Native -CommandName 'x.py' -ScriptBlock { [CompletionResult]::new('--compare-mode', '--compare-mode', [CompletionResultType]::ParameterName, 'mode describing what file the actual ui output will be compared to') [CompletionResult]::new('--pass', '--pass', [CompletionResultType]::ParameterName, 'force {check,build,run}-pass tests to this mode') [CompletionResult]::new('--run', '--run', [CompletionResultType]::ParameterName, 'whether to execute run-* tests') + [CompletionResult]::new('--test-codegen-backend', '--test-codegen-backend', [CompletionResultType]::ParameterName, 'Use a different codegen backend when running tests') [CompletionResult]::new('--config', '--config', [CompletionResultType]::ParameterName, 'TOML configuration file for build') [CompletionResult]::new('--build-dir', '--build-dir', [CompletionResultType]::ParameterName, 'Build directory, overrides `build.build-dir` in `bootstrap.toml`') [CompletionResult]::new('--build', '--build', [CompletionResultType]::ParameterName, 'host target of the stage0 compiler') diff --git a/src/etc/completions/x.py.sh b/src/etc/completions/x.py.sh index e003bf7fd0b..8ff0eaf35c8 100644 --- a/src/etc/completions/x.py.sh +++ b/src/etc/completions/x.py.sh @@ -3875,7 +3875,7 @@ _x.py() { return 0 ;; x.py__test) - opts="-v -i -j -h --no-fail-fast --test-args --compiletest-rustc-args --no-doc --doc --bless --extra-checks --force-rerun --only-modified --compare-mode --pass --run --rustfix-coverage --no-capture --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --json-output --compile-time-deps --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --ci --skip-std-check-if-no-download-rustc --help [PATHS]... [ARGS]..." + opts="-v -i -j -h --no-fail-fast --test-args --compiletest-rustc-args --no-doc --doc --bless --extra-checks --force-rerun --only-modified --compare-mode --pass --run --rustfix-coverage --no-capture --test-codegen-backend --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --json-output --compile-time-deps --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --ci --skip-std-check-if-no-download-rustc --help [PATHS]... [ARGS]..." if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") ) return 0 @@ -3905,6 +3905,10 @@ _x.py() { COMPREPLY=($(compgen -f "${cur}")) return 0 ;; + --test-codegen-backend) + COMPREPLY=($(compgen -f "${cur}")) + return 0 + ;; --config) local oldifs if [ -n "${IFS+x}" ]; then diff --git a/src/etc/completions/x.py.zsh b/src/etc/completions/x.py.zsh index b82c2d65e86..9d2d73e582e 100644 --- a/src/etc/completions/x.py.zsh +++ b/src/etc/completions/x.py.zsh @@ -351,6 +351,7 @@ _arguments "${_arguments_options[@]}" : \ '--compare-mode=[mode describing what file the actual ui output will be compared to]:COMPARE MODE:_default' \ '--pass=[force {check,build,run}-pass tests to this mode]:check | build | run:_default' \ '--run=[whether to execute run-* tests]:auto | always | never:_default' \ +'--test-codegen-backend=[Use a different codegen backend when running tests]:TEST_CODEGEN_BACKEND:_default' \ '--config=[TOML configuration file for build]:FILE:_files' \ '--build-dir=[Build directory, overrides \`build.build-dir\` in \`bootstrap.toml\`]:DIR:_files -/' \ '--build=[host target of the stage0 compiler]:BUILD:' \ diff --git a/src/etc/completions/x.sh b/src/etc/completions/x.sh index c2cb7710020..c1b73fb7c9e 100644 --- a/src/etc/completions/x.sh +++ b/src/etc/completions/x.sh @@ -3875,7 +3875,7 @@ _x() { return 0 ;; x__test) - opts="-v -i -j -h --no-fail-fast --test-args --compiletest-rustc-args --no-doc --doc --bless --extra-checks --force-rerun --only-modified --compare-mode --pass --run --rustfix-coverage --no-capture --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --json-output --compile-time-deps --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --ci --skip-std-check-if-no-download-rustc --help [PATHS]... [ARGS]..." + opts="-v -i -j -h --no-fail-fast --test-args --compiletest-rustc-args --no-doc --doc --bless --extra-checks --force-rerun --only-modified --compare-mode --pass --run --rustfix-coverage --no-capture --test-codegen-backend --verbose --incremental --config --build-dir --build --host --target --exclude --skip --include-default-paths --rustc-error-format --on-fail --dry-run --dump-bootstrap-shims --stage --keep-stage --keep-stage-std --src --jobs --warnings --json-output --compile-time-deps --color --bypass-bootstrap-lock --rust-profile-generate --rust-profile-use --llvm-profile-use --llvm-profile-generate --enable-bolt-settings --skip-stage0-validation --reproducible-artifact --set --ci --skip-std-check-if-no-download-rustc --help [PATHS]... [ARGS]..." if [[ ${cur} == -* || ${COMP_CWORD} -eq 2 ]] ; then COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") ) return 0 @@ -3905,6 +3905,10 @@ _x() { COMPREPLY=($(compgen -f "${cur}")) return 0 ;; + --test-codegen-backend) + COMPREPLY=($(compgen -f "${cur}")) + return 0 + ;; --config) local oldifs if [ -n "${IFS+x}" ]; then diff --git a/src/etc/completions/x.zsh b/src/etc/completions/x.zsh index 49139e70f7f..29237ef9bf8 100644 --- a/src/etc/completions/x.zsh +++ b/src/etc/completions/x.zsh @@ -351,6 +351,7 @@ _arguments "${_arguments_options[@]}" : \ '--compare-mode=[mode describing what file the actual ui output will be compared to]:COMPARE MODE:_default' \ '--pass=[force {check,build,run}-pass tests to this mode]:check | build | run:_default' \ '--run=[whether to execute run-* tests]:auto | always | never:_default' \ +'--test-codegen-backend=[Use a different codegen backend when running tests]:TEST_CODEGEN_BACKEND:_default' \ '--config=[TOML configuration file for build]:FILE:_files' \ '--build-dir=[Build directory, overrides \`build.build-dir\` in \`bootstrap.toml\`]:DIR:_files -/' \ '--build=[host target of the stage0 compiler]:BUILD:' \ diff --git a/src/etc/lldb_lookup.py b/src/etc/lldb_lookup.py index f4ea904b7f5..f43d2c6a725 100644 --- a/src/etc/lldb_lookup.py +++ b/src/etc/lldb_lookup.py @@ -10,6 +10,9 @@ def is_hashbrown_hashmap(hash_map: lldb.SBValue) -> bool: def classify_rust_type(type: lldb.SBType) -> str: + if type.IsPointerType(): + type = type.GetPointeeType() + type_class = type.GetTypeClass() if type_class == lldb.eTypeClassStruct: return classify_struct(type.name, type.fields) diff --git a/src/etc/lldb_providers.py b/src/etc/lldb_providers.py index 98426e42423..65f18baa937 100644 --- a/src/etc/lldb_providers.py +++ b/src/etc/lldb_providers.py @@ -1,4 +1,5 @@ from __future__ import annotations +import re import sys from typing import List, TYPE_CHECKING @@ -410,6 +411,16 @@ class MSVCStrSyntheticProvider: return "&str" +def _getVariantName(variant) -> str: + """ + Since the enum variant's type name is in the form `TheEnumName::TheVariantName$Variant`, + we can extract `TheVariantName` from it for display purpose. + """ + s = variant.GetType().GetName() + match = re.search(r"::([^:]+)\$Variant$", s) + return match.group(1) if match else "" + + class ClangEncodedEnumProvider: """Pretty-printer for 'clang-encoded' enums support implemented in LLDB""" @@ -424,37 +435,25 @@ class ClangEncodedEnumProvider: return True def num_children(self) -> int: - if self.is_default: - return 1 - return 2 + return 1 - def get_child_index(self, name: str) -> int: - if name == ClangEncodedEnumProvider.VALUE_MEMBER_NAME: - return 0 - if name == ClangEncodedEnumProvider.DISCRIMINANT_MEMBER_NAME: - return 1 + def get_child_index(self, _name: str) -> int: return -1 def get_child_at_index(self, index: int) -> SBValue: if index == 0: - return self.variant.GetChildMemberWithName( + value = self.variant.GetChildMemberWithName( ClangEncodedEnumProvider.VALUE_MEMBER_NAME ) - if index == 1: - return self.variant.GetChildMemberWithName( - ClangEncodedEnumProvider.DISCRIMINANT_MEMBER_NAME + return value.CreateChildAtOffset( + _getVariantName(self.variant), 0, value.GetType() ) + return None def update(self): all_variants = self.valobj.GetChildAtIndex(0) index = self._getCurrentVariantIndex(all_variants) self.variant = all_variants.GetChildAtIndex(index) - self.is_default = ( - self.variant.GetIndexOfChildWithName( - ClangEncodedEnumProvider.DISCRIMINANT_MEMBER_NAME - ) - == -1 - ) def _getCurrentVariantIndex(self, all_variants: SBValue) -> int: default_index = 0 diff --git a/src/librustdoc/clean/types.rs b/src/librustdoc/clean/types.rs index 46aaa0068de..92bd4a498ca 100644 --- a/src/librustdoc/clean/types.rs +++ b/src/librustdoc/clean/types.rs @@ -1087,7 +1087,8 @@ pub(crate) fn extract_cfg_from_attrs<'a, I: Iterator<Item = &'a hir::Attribute> // treat #[target_feature(enable = "feat")] attributes as if they were // #[doc(cfg(target_feature = "feat"))] attributes as well - if let Some(features) = find_attr!(attrs, AttributeKind::TargetFeature(features, _) => features) + if let Some(features) = + find_attr!(attrs, AttributeKind::TargetFeature { features, .. } => features) { for (feature, _) in features { cfg &= Cfg::Cfg(sym::target_feature, Some(*feature)); diff --git a/src/librustdoc/config.rs b/src/librustdoc/config.rs index c52c7236883..450ac04b40d 100644 --- a/src/librustdoc/config.rs +++ b/src/librustdoc/config.rs @@ -305,6 +305,8 @@ pub(crate) struct RenderOptions { pub(crate) parts_out_dir: Option<PathToParts>, /// disable minification of CSS/JS pub(crate) disable_minification: bool, + /// If `true`, HTML source pages will generate the possibility to expand macros. + pub(crate) generate_macro_expansion: bool, } #[derive(Copy, Clone, Debug, PartialEq, Eq)] @@ -786,6 +788,7 @@ impl Options { let show_type_layout = matches.opt_present("show-type-layout"); let nocapture = matches.opt_present("nocapture"); let generate_link_to_definition = matches.opt_present("generate-link-to-definition"); + let generate_macro_expansion = matches.opt_present("generate-macro-expansion"); let extern_html_root_takes_precedence = matches.opt_present("extern-html-root-takes-precedence"); let html_no_source = matches.opt_present("html-no-source"); @@ -801,6 +804,13 @@ impl Options { .with_note("`--generate-link-to-definition` option will be ignored") .emit(); } + if generate_macro_expansion && (show_coverage || output_format != OutputFormat::Html) { + dcx.struct_warn( + "`--generate-macro-expansion` option can only be used with HTML output format", + ) + .with_note("`--generate-macro-expansion` option will be ignored") + .emit(); + } let scrape_examples_options = ScrapeExamplesOptions::new(matches, dcx); let with_examples = matches.opt_strs("with-examples"); @@ -881,6 +891,7 @@ impl Options { unstable_features, emit, generate_link_to_definition, + generate_macro_expansion, call_locations, no_emit_shared: false, html_no_source, diff --git a/src/librustdoc/core.rs b/src/librustdoc/core.rs index e89733b2f6d..b8aaafcb517 100644 --- a/src/librustdoc/core.rs +++ b/src/librustdoc/core.rs @@ -31,6 +31,7 @@ use crate::clean::inline::build_trait; use crate::clean::{self, ItemId}; use crate::config::{Options as RustdocOptions, OutputFormat, RenderOptions}; use crate::formats::cache::Cache; +use crate::html::macro_expansion::{ExpandedCode, source_macro_expansion}; use crate::passes; use crate::passes::Condition::*; use crate::passes::collect_intra_doc_links::LinkCollector; @@ -334,11 +335,19 @@ pub(crate) fn run_global_ctxt( show_coverage: bool, render_options: RenderOptions, output_format: OutputFormat, -) -> (clean::Crate, RenderOptions, Cache) { +) -> (clean::Crate, RenderOptions, Cache, FxHashMap<rustc_span::BytePos, Vec<ExpandedCode>>) { // Certain queries assume that some checks were run elsewhere // (see https://github.com/rust-lang/rust/pull/73566#issuecomment-656954425), // so type-check everything other than function bodies in this crate before running lints. + let expanded_macros = { + // We need for these variables to be removed to ensure that the `Crate` won't be "stolen" + // anymore. + let (_resolver, krate) = &*tcx.resolver_for_lowering().borrow(); + + source_macro_expansion(&krate, &render_options, output_format, tcx.sess.source_map()) + }; + // NOTE: this does not call `tcx.analysis()` so that we won't // typeck function bodies or run the default rustc lints. // (see `override_queries` in the `config`) @@ -448,7 +457,7 @@ pub(crate) fn run_global_ctxt( tcx.dcx().abort_if_errors(); - (krate, ctxt.render_options, ctxt.cache) + (krate, ctxt.render_options, ctxt.cache, expanded_macros) } /// Due to <https://github.com/rust-lang/rust/pull/73566>, diff --git a/src/librustdoc/formats/cache.rs b/src/librustdoc/formats/cache.rs index 57f9f16751d..cb6837dd614 100644 --- a/src/librustdoc/formats/cache.rs +++ b/src/librustdoc/formats/cache.rs @@ -47,7 +47,7 @@ pub(crate) struct Cache { /// Similar to `paths`, but only holds external paths. This is only used for /// generating explicit hyperlinks to other crates. - pub(crate) external_paths: FxHashMap<DefId, (Vec<Symbol>, ItemType)>, + pub(crate) external_paths: FxIndexMap<DefId, (Vec<Symbol>, ItemType)>, /// Maps local `DefId`s of exported types to fully qualified paths. /// Unlike 'paths', this mapping ignores any renames that occur diff --git a/src/librustdoc/formats/renderer.rs b/src/librustdoc/formats/renderer.rs index aa4be4db997..305c8c39ba7 100644 --- a/src/librustdoc/formats/renderer.rs +++ b/src/librustdoc/formats/renderer.rs @@ -31,15 +31,6 @@ pub(crate) trait FormatRenderer<'tcx>: Sized { /// reset the information between each call to `item` by using `restore_module_data`. type ModuleData; - /// Sets up any state required for the renderer. When this is called the cache has already been - /// populated. - fn init( - krate: clean::Crate, - options: RenderOptions, - cache: Cache, - tcx: TyCtxt<'tcx>, - ) -> Result<(Self, clean::Crate), Error>; - /// This method is called right before call [`Self::item`]. This method returns a type /// containing information that needs to be reset after the [`Self::item`] method has been /// called with the [`Self::restore_module_data`] method. @@ -105,18 +96,23 @@ fn run_format_inner<'tcx, T: FormatRenderer<'tcx>>( } /// Main method for rendering a crate. -pub(crate) fn run_format<'tcx, T: FormatRenderer<'tcx>>( +pub(crate) fn run_format< + 'tcx, + T: FormatRenderer<'tcx>, + F: FnOnce(clean::Crate, RenderOptions, Cache, TyCtxt<'tcx>) -> Result<(T, clean::Crate), Error>, +>( krate: clean::Crate, options: RenderOptions, cache: Cache, tcx: TyCtxt<'tcx>, + init: F, ) -> Result<(), Error> { let prof = &tcx.sess.prof; let emit_crate = options.should_emit_crate(); let (mut format_renderer, krate) = prof .verbose_generic_activity_with_arg("create_renderer", T::descr()) - .run(|| T::init(krate, options, cache, tcx))?; + .run(|| init(krate, options, cache, tcx))?; if !emit_crate { return Ok(()); diff --git a/src/librustdoc/html/highlight.rs b/src/librustdoc/html/highlight.rs index 272180fb990..feafb41dc99 100644 --- a/src/librustdoc/html/highlight.rs +++ b/src/librustdoc/html/highlight.rs @@ -5,6 +5,7 @@ //! //! Use the `render_with_highlighting` to highlight some rust code. +use std::borrow::Cow; use std::collections::VecDeque; use std::fmt::{self, Display, Write}; @@ -17,6 +18,7 @@ use rustc_span::{BytePos, DUMMY_SP, Span}; use super::format::{self, write_str}; use crate::clean::PrimitiveType; use crate::html::escape::EscapeBodyText; +use crate::html::macro_expansion::ExpandedCode; use crate::html::render::{Context, LinkFromSrc}; /// This type is needed in case we want to render links on items to allow to go to their definition. @@ -163,11 +165,22 @@ struct TokenHandler<'a, 'tcx, F: Write> { current_class: Option<Class>, /// We need to keep the `Class` for each element because it could contain a `Span` which is /// used to generate links. - pending_elems: Vec<(&'a str, Option<Class>)>, + pending_elems: Vec<(Cow<'a, str>, Option<Class>)>, href_context: Option<HrefContext<'a, 'tcx>>, write_line_number: fn(&mut F, u32, &'static str), } +impl<F: Write> std::fmt::Debug for TokenHandler<'_, '_, F> { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + f.debug_struct("TokenHandler") + .field("closing_tags", &self.closing_tags) + .field("pending_exit_span", &self.pending_exit_span) + .field("current_class", &self.current_class) + .field("pending_elems", &self.pending_elems) + .finish() + } +} + impl<F: Write> TokenHandler<'_, '_, F> { fn handle_exit_span(&mut self) { // We can't get the last `closing_tags` element using `pop()` because `closing_tags` is @@ -220,6 +233,10 @@ impl<F: Write> TokenHandler<'_, '_, F> { } else { None }; + // To prevent opening a macro expansion span being closed right away because + // the currently open item is replaced by a new class. + let last_pending = + self.pending_elems.pop_if(|(_, class)| *class == Some(Class::Expansion)); for (text, class) in self.pending_elems.iter() { string( self.out, @@ -233,6 +250,16 @@ impl<F: Write> TokenHandler<'_, '_, F> { if let Some(close_tag) = close_tag { exit_span(self.out, close_tag); } + if let Some((text, class)) = last_pending { + string( + self.out, + EscapeBodyText(&text), + class, + &self.href_context, + close_tag.is_none(), + self.write_line_number, + ); + } } self.pending_elems.clear(); true @@ -271,6 +298,100 @@ fn empty_line_number(out: &mut impl Write, _: u32, extra: &'static str) { out.write_str(extra).unwrap(); } +fn get_next_expansion( + expanded_codes: &[ExpandedCode], + line: u32, + span: Span, +) -> Option<&ExpandedCode> { + expanded_codes.iter().find(|code| code.start_line == line && code.span.lo() > span.lo()) +} + +fn get_expansion<'a, W: Write>( + token_handler: &mut TokenHandler<'_, '_, W>, + expanded_codes: &'a [ExpandedCode], + line: u32, + span: Span, +) -> Option<&'a ExpandedCode> { + if let Some(expanded_code) = get_next_expansion(expanded_codes, line, span) { + let (closing, reopening) = if let Some(current_class) = token_handler.current_class + && let class = current_class.as_html() + && !class.is_empty() + { + ("</span>", format!("<span class=\"{class}\">")) + } else { + ("", String::new()) + }; + let id = format!("expand-{line}"); + token_handler.pending_elems.push(( + Cow::Owned(format!( + "{closing}\ +<span class=expansion>\ + <input id={id} \ + tabindex=0 \ + type=checkbox \ + aria-label=\"Collapse/expand macro\" \ + title=\"\"Collapse/expand macro\">{reopening}", + )), + Some(Class::Expansion), + )); + Some(expanded_code) + } else { + None + } +} + +fn start_expansion(out: &mut Vec<(Cow<'_, str>, Option<Class>)>, expanded_code: &ExpandedCode) { + out.push(( + Cow::Owned(format!( + "<span class=expanded>{}</span><span class=original>", + expanded_code.code, + )), + Some(Class::Expansion), + )); +} + +fn end_expansion<'a, W: Write>( + token_handler: &mut TokenHandler<'_, '_, W>, + expanded_codes: &'a [ExpandedCode], + expansion_start_tags: &[(&'static str, Class)], + line: u32, + span: Span, +) -> Option<&'a ExpandedCode> { + if let Some(expanded_code) = get_next_expansion(expanded_codes, line, span) { + // We close the current "original" content. + token_handler.pending_elems.push((Cow::Borrowed("</span>"), Some(Class::Expansion))); + return Some(expanded_code); + } + if expansion_start_tags.is_empty() && token_handler.closing_tags.is_empty() { + // No need tag opened so we can just close expansion. + token_handler.pending_elems.push((Cow::Borrowed("</span></span>"), Some(Class::Expansion))); + return None; + } + + // If tags were opened inside the expansion, we need to close them and re-open them outside + // of the expansion span. + let mut out = String::new(); + let mut end = String::new(); + + let mut closing_tags = token_handler.closing_tags.iter().peekable(); + let mut start_closing_tags = expansion_start_tags.iter().peekable(); + + while let (Some(tag), Some(start_tag)) = (closing_tags.peek(), start_closing_tags.peek()) + && tag == start_tag + { + closing_tags.next(); + start_closing_tags.next(); + } + for (tag, class) in start_closing_tags.chain(closing_tags) { + out.push_str(tag); + end.push_str(&format!("<span class=\"{}\">", class.as_html())); + } + token_handler + .pending_elems + .push((Cow::Owned(format!("</span></span>{out}{end}")), Some(Class::Expansion))); + None +} + #[derive(Clone, Copy)] pub(super) struct LineInfo { pub(super) start_line: u32, @@ -317,7 +438,7 @@ pub(super) fn write_code( closing_tags: Vec::new(), pending_exit_span: None, current_class: None, - pending_elems: Vec::new(), + pending_elems: Vec::with_capacity(20), href_context, write_line_number: match line_info { Some(line_info) => { @@ -338,12 +459,23 @@ pub(super) fn write_code( (0, u32::MAX) }; + let (expanded_codes, file_span) = match token_handler.href_context.as_ref().and_then(|c| { + let expanded_codes = c.context.shared.expanded_codes.get(&c.file_span.lo())?; + Some((expanded_codes, c.file_span)) + }) { + Some((expanded_codes, file_span)) => (expanded_codes.as_slice(), file_span), + None => (&[] as &[ExpandedCode], DUMMY_SP), + }; + let mut current_expansion = get_expansion(&mut token_handler, expanded_codes, line, file_span); + token_handler.write_pending_elems(None); + let mut expansion_start_tags = Vec::new(); + Classifier::new( &src, token_handler.href_context.as_ref().map(|c| c.file_span).unwrap_or(DUMMY_SP), decoration_info, ) - .highlight(&mut |highlight| { + .highlight(&mut |span, highlight| { match highlight { Highlight::Token { text, class } => { // If we received a `ExitSpan` event and then have a non-compatible `Class`, we @@ -369,10 +501,42 @@ pub(super) fn write_code( if text == "\n" { line += 1; if line < max_lines { - token_handler.pending_elems.push((text, Some(Class::Backline(line)))); + token_handler + .pending_elems + .push((Cow::Borrowed(text), Some(Class::Backline(line)))); + } + if current_expansion.is_none() { + current_expansion = + get_expansion(&mut token_handler, expanded_codes, line, span); + expansion_start_tags = token_handler.closing_tags.clone(); + } + if let Some(ref current_expansion) = current_expansion + && current_expansion.span.lo() == span.hi() + { + start_expansion(&mut token_handler.pending_elems, current_expansion); } } else { - token_handler.pending_elems.push((text, class)); + token_handler.pending_elems.push((Cow::Borrowed(text), class)); + + let mut need_end = false; + if let Some(ref current_expansion) = current_expansion { + if current_expansion.span.lo() == span.hi() { + start_expansion(&mut token_handler.pending_elems, current_expansion); + } else if current_expansion.end_line == line + && span.hi() >= current_expansion.span.hi() + { + need_end = true; + } + } + if need_end { + current_expansion = end_expansion( + &mut token_handler, + expanded_codes, + &expansion_start_tags, + line, + span, + ); + } } } Highlight::EnterSpan { class } => { @@ -440,6 +604,8 @@ enum Class { QuestionMark, Decoration(&'static str), Backline(u32), + /// Macro expansion. + Expansion, } impl Class { @@ -489,6 +655,7 @@ impl Class { Class::QuestionMark => "question-mark", Class::Decoration(kind) => kind, Class::Backline(_) => "", + Class::Expansion => "", } } @@ -513,7 +680,8 @@ impl Class { | Self::Lifetime | Self::QuestionMark | Self::Decoration(_) - | Self::Backline(_) => None, + | Self::Backline(_) + | Self::Expansion => None, } } } @@ -628,6 +796,13 @@ impl Decorations { } } +/// Convenient wrapper to create a [`Span`] from a position in the file. +fn new_span(lo: u32, text: &str, file_span: Span) -> Span { + let hi = lo + text.len() as u32; + let file_lo = file_span.lo(); + file_span.with_lo(file_lo + BytePos(lo)).with_hi(file_lo + BytePos(hi)) +} + /// Processes program tokens, classifying strings of text by highlighting /// category (`Class`). struct Classifier<'src> { @@ -660,13 +835,6 @@ impl<'src> Classifier<'src> { } } - /// Convenient wrapper to create a [`Span`] from a position in the file. - fn new_span(&self, lo: u32, text: &str) -> Span { - let hi = lo + text.len() as u32; - let file_lo = self.file_span.lo(); - self.file_span.with_lo(file_lo + BytePos(lo)).with_hi(file_lo + BytePos(hi)) - } - /// Concatenate colons and idents as one when possible. fn get_full_ident_path(&mut self) -> Vec<(TokenKind, usize, usize)> { let start = self.byte_pos as usize; @@ -735,18 +903,18 @@ impl<'src> Classifier<'src> { /// The general structure for this method is to iterate over each token, /// possibly giving it an HTML span with a class specifying what flavor of /// token is used. - fn highlight(mut self, sink: &mut dyn FnMut(Highlight<'src>)) { + fn highlight(mut self, sink: &mut dyn FnMut(Span, Highlight<'src>)) { loop { if let Some(decs) = self.decorations.as_mut() { let byte_pos = self.byte_pos; let n_starts = decs.starts.iter().filter(|(i, _)| byte_pos >= *i).count(); for (_, kind) in decs.starts.drain(0..n_starts) { - sink(Highlight::EnterSpan { class: Class::Decoration(kind) }); + sink(DUMMY_SP, Highlight::EnterSpan { class: Class::Decoration(kind) }); } let n_ends = decs.ends.iter().filter(|i| byte_pos >= **i).count(); for _ in decs.ends.drain(0..n_ends) { - sink(Highlight::ExitSpan); + sink(DUMMY_SP, Highlight::ExitSpan); } } @@ -784,14 +952,22 @@ impl<'src> Classifier<'src> { &mut self, token: TokenKind, text: &'src str, - sink: &mut dyn FnMut(Highlight<'src>), + sink: &mut dyn FnMut(Span, Highlight<'src>), before: u32, ) { let lookahead = self.peek(); - let no_highlight = |sink: &mut dyn FnMut(_)| sink(Highlight::Token { text, class: None }); - let whitespace = |sink: &mut dyn FnMut(_)| { + let file_span = self.file_span; + let no_highlight = |sink: &mut dyn FnMut(_, _)| { + sink(new_span(before, text, file_span), Highlight::Token { text, class: None }) + }; + let whitespace = |sink: &mut dyn FnMut(_, _)| { + let mut start = 0u32; for part in text.split('\n').intersperse("\n").filter(|s| !s.is_empty()) { - sink(Highlight::Token { text: part, class: None }); + sink( + new_span(before + start, part, file_span), + Highlight::Token { text: part, class: None }, + ); + start += part.len() as u32; } }; let class = match token { @@ -807,8 +983,8 @@ impl<'src> Classifier<'src> { // leading identifier. TokenKind::Bang if self.in_macro => { self.in_macro = false; - sink(Highlight::Token { text, class: None }); - sink(Highlight::ExitSpan); + sink(new_span(before, text, file_span), Highlight::Token { text, class: None }); + sink(DUMMY_SP, Highlight::ExitSpan); return; } @@ -819,12 +995,18 @@ impl<'src> Classifier<'src> { Some((TokenKind::Whitespace, _)) => return whitespace(sink), Some((TokenKind::Ident, "mut")) => { self.next(); - sink(Highlight::Token { text: "*mut", class: Some(Class::RefKeyWord) }); + sink( + DUMMY_SP, + Highlight::Token { text: "*mut", class: Some(Class::RefKeyWord) }, + ); return; } Some((TokenKind::Ident, "const")) => { self.next(); - sink(Highlight::Token { text: "*const", class: Some(Class::RefKeyWord) }); + sink( + DUMMY_SP, + Highlight::Token { text: "*const", class: Some(Class::RefKeyWord) }, + ); return; } _ => Class::RefKeyWord, @@ -832,18 +1014,21 @@ impl<'src> Classifier<'src> { TokenKind::And => match self.tokens.peek() { Some((TokenKind::And, _)) => { self.next(); - sink(Highlight::Token { text: "&&", class: None }); + sink(DUMMY_SP, Highlight::Token { text: "&&", class: None }); return; } Some((TokenKind::Eq, _)) => { self.next(); - sink(Highlight::Token { text: "&=", class: None }); + sink(DUMMY_SP, Highlight::Token { text: "&=", class: None }); return; } Some((TokenKind::Whitespace, _)) => return whitespace(sink), Some((TokenKind::Ident, "mut")) => { self.next(); - sink(Highlight::Token { text: "&mut", class: Some(Class::RefKeyWord) }); + sink( + DUMMY_SP, + Highlight::Token { text: "&mut", class: Some(Class::RefKeyWord) }, + ); return; } _ => Class::RefKeyWord, @@ -853,19 +1038,19 @@ impl<'src> Classifier<'src> { TokenKind::Eq => match lookahead { Some(TokenKind::Eq) => { self.next(); - sink(Highlight::Token { text: "==", class: None }); + sink(DUMMY_SP, Highlight::Token { text: "==", class: None }); return; } Some(TokenKind::Gt) => { self.next(); - sink(Highlight::Token { text: "=>", class: None }); + sink(DUMMY_SP, Highlight::Token { text: "=>", class: None }); return; } _ => return no_highlight(sink), }, TokenKind::Minus if lookahead == Some(TokenKind::Gt) => { self.next(); - sink(Highlight::Token { text: "->", class: None }); + sink(DUMMY_SP, Highlight::Token { text: "->", class: None }); return; } @@ -916,16 +1101,22 @@ impl<'src> Classifier<'src> { self.next(); if let Some(TokenKind::OpenBracket) = self.peek() { self.in_attribute = true; - sink(Highlight::EnterSpan { class: Class::Attribute }); + sink( + new_span(before, text, file_span), + Highlight::EnterSpan { class: Class::Attribute }, + ); } - sink(Highlight::Token { text: "#", class: None }); - sink(Highlight::Token { text: "!", class: None }); + sink(DUMMY_SP, Highlight::Token { text: "#", class: None }); + sink(DUMMY_SP, Highlight::Token { text: "!", class: None }); return; } // Case 2: #[outer_attribute] Some(TokenKind::OpenBracket) => { self.in_attribute = true; - sink(Highlight::EnterSpan { class: Class::Attribute }); + sink( + new_span(before, text, file_span), + Highlight::EnterSpan { class: Class::Attribute }, + ); } _ => (), } @@ -934,8 +1125,11 @@ impl<'src> Classifier<'src> { TokenKind::CloseBracket => { if self.in_attribute { self.in_attribute = false; - sink(Highlight::Token { text: "]", class: None }); - sink(Highlight::ExitSpan); + sink( + new_span(before, text, file_span), + Highlight::Token { text: "]", class: None }, + ); + sink(DUMMY_SP, Highlight::ExitSpan); return; } return no_highlight(sink); @@ -956,15 +1150,16 @@ impl<'src> Classifier<'src> { TokenKind::GuardedStrPrefix => return no_highlight(sink), TokenKind::Ident | TokenKind::RawIdent if lookahead == Some(TokenKind::Bang) => { self.in_macro = true; - sink(Highlight::EnterSpan { class: Class::Macro(self.new_span(before, text)) }); - sink(Highlight::Token { text, class: None }); + let span = new_span(before, text, file_span); + sink(DUMMY_SP, Highlight::EnterSpan { class: Class::Macro(span) }); + sink(span, Highlight::Token { text, class: None }); return; } TokenKind::Ident => match get_real_ident_class(text, false) { None => match text { - "Option" | "Result" => Class::PreludeTy(self.new_span(before, text)), + "Option" | "Result" => Class::PreludeTy(new_span(before, text, file_span)), "Some" | "None" | "Ok" | "Err" => { - Class::PreludeVal(self.new_span(before, text)) + Class::PreludeVal(new_span(before, text, file_span)) } // "union" is a weak keyword and is only considered as a keyword when declaring // a union type. @@ -973,13 +1168,13 @@ impl<'src> Classifier<'src> { self.in_macro_nonterminal = false; Class::MacroNonTerminal } - "self" | "Self" => Class::Self_(self.new_span(before, text)), - _ => Class::Ident(self.new_span(before, text)), + "self" | "Self" => Class::Self_(new_span(before, text, file_span)), + _ => Class::Ident(new_span(before, text, file_span)), }, Some(c) => c, }, TokenKind::RawIdent | TokenKind::UnknownPrefix | TokenKind::InvalidIdent => { - Class::Ident(self.new_span(before, text)) + Class::Ident(new_span(before, text, file_span)) } TokenKind::Lifetime { .. } | TokenKind::RawLifetime @@ -988,8 +1183,13 @@ impl<'src> Classifier<'src> { }; // Anything that didn't return above is the simple case where we the // class just spans a single token, so we can use the `string` method. + let mut start = 0u32; for part in text.split('\n').intersperse("\n").filter(|s| !s.is_empty()) { - sink(Highlight::Token { text: part, class: Some(class) }); + sink( + new_span(before + start, part, file_span), + Highlight::Token { text: part, class: Some(class) }, + ); + start += part.len() as u32; } } @@ -1042,9 +1242,9 @@ fn exit_span(out: &mut impl Write, closing_tag: &str) { /// Note that if `context` is not `None` and that the given `klass` contains a `Span`, the function /// will then try to find this `span` in the `span_correspondence_map`. If found, it'll then /// generate a link for this element (which corresponds to where its definition is located). -fn string<T: Display, W: Write>( +fn string<W: Write>( out: &mut W, - text: T, + text: EscapeBodyText<'_>, klass: Option<Class>, href_context: &Option<HrefContext<'_, '_>>, open_tag: bool, @@ -1052,6 +1252,9 @@ fn string<T: Display, W: Write>( ) { if let Some(Class::Backline(line)) = klass { write_line_number_callback(out, line, "\n"); + } else if let Some(Class::Expansion) = klass { + // This has already been escaped so we get the text to write it directly. + out.write_str(text.0).unwrap(); } else if let Some(closing_tag) = string_without_closing_tag(out, text, klass, href_context, open_tag) { diff --git a/src/librustdoc/html/macro_expansion.rs b/src/librustdoc/html/macro_expansion.rs new file mode 100644 index 00000000000..9098e92a5cd --- /dev/null +++ b/src/librustdoc/html/macro_expansion.rs @@ -0,0 +1,156 @@ +use rustc_ast::visit::{Visitor, walk_crate, walk_expr, walk_item, walk_pat, walk_stmt}; +use rustc_ast::{Crate, Expr, Item, Pat, Stmt}; +use rustc_data_structures::fx::FxHashMap; +use rustc_span::source_map::SourceMap; +use rustc_span::{BytePos, Span}; + +use crate::config::{OutputFormat, RenderOptions}; + +/// It returns the expanded macros correspondence map. +pub(crate) fn source_macro_expansion( + krate: &Crate, + render_options: &RenderOptions, + output_format: OutputFormat, + source_map: &SourceMap, +) -> FxHashMap<BytePos, Vec<ExpandedCode>> { + if output_format == OutputFormat::Html + && !render_options.html_no_source + && render_options.generate_macro_expansion + { + let mut expanded_visitor = ExpandedCodeVisitor { expanded_codes: Vec::new(), source_map }; + walk_crate(&mut expanded_visitor, krate); + expanded_visitor.compute_expanded() + } else { + Default::default() + } +} + +/// Contains information about macro expansion in the source code pages. +#[derive(Debug)] +pub(crate) struct ExpandedCode { + /// The line where the macro expansion starts. + pub(crate) start_line: u32, + /// The line where the macro expansion ends. + pub(crate) end_line: u32, + /// The source code of the expanded macro. + pub(crate) code: String, + /// The span of macro callsite. + pub(crate) span: Span, +} + +/// Contains temporary information of macro expanded code. +/// +/// As we go through the HIR visitor, if any span overlaps with another, they will +/// both be merged. +struct ExpandedCodeInfo { + /// Callsite of the macro. + span: Span, + /// Expanded macro source code (HTML escaped). + code: String, + /// Span of macro-generated code. + expanded_span: Span, +} + +/// HIR visitor which retrieves expanded macro. +/// +/// Once done, the `expanded_codes` will be transformed into a vec of [`ExpandedCode`] +/// which contains the information needed when running the source code highlighter. +pub(crate) struct ExpandedCodeVisitor<'ast> { + expanded_codes: Vec<ExpandedCodeInfo>, + source_map: &'ast SourceMap, +} + +impl<'ast> ExpandedCodeVisitor<'ast> { + fn handle_new_span<F: Fn() -> String>(&mut self, new_span: Span, f: F) { + if new_span.is_dummy() || !new_span.from_expansion() { + return; + } + let callsite_span = new_span.source_callsite(); + if let Some(index) = + self.expanded_codes.iter().position(|info| info.span.overlaps(callsite_span)) + { + let info = &mut self.expanded_codes[index]; + if new_span.contains(info.expanded_span) { + // New macro expansion recursively contains the old one, so replace it. + info.span = callsite_span; + info.expanded_span = new_span; + info.code = f(); + } else { + // We push the new item after the existing one. + let expanded_code = &mut self.expanded_codes[index]; + expanded_code.code.push('\n'); + expanded_code.code.push_str(&f()); + let lo = BytePos(expanded_code.expanded_span.lo().0.min(new_span.lo().0)); + let hi = BytePos(expanded_code.expanded_span.hi().0.min(new_span.hi().0)); + expanded_code.expanded_span = expanded_code.expanded_span.with_lo(lo).with_hi(hi); + } + } else { + // We add a new item. + self.expanded_codes.push(ExpandedCodeInfo { + span: callsite_span, + code: f(), + expanded_span: new_span, + }); + } + } + + fn compute_expanded(mut self) -> FxHashMap<BytePos, Vec<ExpandedCode>> { + self.expanded_codes.sort_unstable_by(|item1, item2| item1.span.cmp(&item2.span)); + let mut expanded: FxHashMap<BytePos, Vec<ExpandedCode>> = FxHashMap::default(); + for ExpandedCodeInfo { span, code, .. } in self.expanded_codes { + if let Ok(lines) = self.source_map.span_to_lines(span) + && !lines.lines.is_empty() + { + let mut out = String::new(); + super::highlight::write_code(&mut out, &code, None, None, None); + let first = lines.lines.first().unwrap(); + let end = lines.lines.last().unwrap(); + expanded.entry(lines.file.start_pos).or_default().push(ExpandedCode { + start_line: first.line_index as u32 + 1, + end_line: end.line_index as u32 + 1, + code: out, + span, + }); + } + } + expanded + } +} + +// We need to use the AST pretty printing because: +// +// 1. HIR pretty printing doesn't display accurately the code (like `impl Trait`). +// 2. `SourceMap::snippet_opt` might fail if the source is not available. +impl<'ast> Visitor<'ast> for ExpandedCodeVisitor<'ast> { + fn visit_expr(&mut self, expr: &'ast Expr) { + if expr.span.from_expansion() { + self.handle_new_span(expr.span, || rustc_ast_pretty::pprust::expr_to_string(expr)); + } else { + walk_expr(self, expr); + } + } + + fn visit_item(&mut self, item: &'ast Item) { + if item.span.from_expansion() { + self.handle_new_span(item.span, || rustc_ast_pretty::pprust::item_to_string(item)); + } else { + walk_item(self, item); + } + } + + fn visit_stmt(&mut self, stmt: &'ast Stmt) { + if stmt.span.from_expansion() { + self.handle_new_span(stmt.span, || rustc_ast_pretty::pprust::stmt_to_string(stmt)); + } else { + walk_stmt(self, stmt); + } + } + + fn visit_pat(&mut self, pat: &'ast Pat) { + if pat.span.from_expansion() { + self.handle_new_span(pat.span, || rustc_ast_pretty::pprust::pat_to_string(pat)); + } else { + walk_pat(self, pat); + } + } +} diff --git a/src/librustdoc/html/mod.rs b/src/librustdoc/html/mod.rs index 481ed16c05f..d42f4782845 100644 --- a/src/librustdoc/html/mod.rs +++ b/src/librustdoc/html/mod.rs @@ -3,6 +3,7 @@ pub(crate) mod format; pub(crate) mod highlight; pub(crate) mod layout; mod length_limit; +pub(crate) mod macro_expansion; // used by the error-index generator, so it needs to be public pub mod markdown; pub(crate) mod render; diff --git a/src/librustdoc/html/render/context.rs b/src/librustdoc/html/render/context.rs index e4fca09d64f..faaecaf0cbb 100644 --- a/src/librustdoc/html/render/context.rs +++ b/src/librustdoc/html/render/context.rs @@ -12,7 +12,7 @@ use rustc_hir::def_id::{DefIdMap, LOCAL_CRATE}; use rustc_middle::ty::TyCtxt; use rustc_session::Session; use rustc_span::edition::Edition; -use rustc_span::{FileName, Symbol, sym}; +use rustc_span::{BytePos, FileName, Symbol, sym}; use tracing::info; use super::print_item::{full_path, print_item, print_item_path}; @@ -28,6 +28,7 @@ use crate::formats::FormatRenderer; use crate::formats::cache::Cache; use crate::formats::item_type::ItemType; use crate::html::escape::Escape; +use crate::html::macro_expansion::ExpandedCode; use crate::html::markdown::{self, ErrorCodes, IdMap, plain_text_summary}; use crate::html::render::write_shared::write_shared; use crate::html::url_parts_builder::UrlPartsBuilder; @@ -139,6 +140,7 @@ pub(crate) struct SharedContext<'tcx> { /// Correspondence map used to link types used in the source code pages to allow to click on /// links to jump to the type's definition. pub(crate) span_correspondence_map: FxHashMap<rustc_span::Span, LinkFromSrc>, + pub(crate) expanded_codes: FxHashMap<BytePos, Vec<ExpandedCode>>, /// The [`Cache`] used during rendering. pub(crate) cache: Cache, pub(crate) call_locations: AllCallLocations, @@ -458,20 +460,13 @@ impl<'tcx> Context<'tcx> { } } -/// Generates the documentation for `crate` into the directory `dst` -impl<'tcx> FormatRenderer<'tcx> for Context<'tcx> { - fn descr() -> &'static str { - "html" - } - - const RUN_ON_MODULE: bool = true; - type ModuleData = ContextInfo; - - fn init( +impl<'tcx> Context<'tcx> { + pub(crate) fn init( krate: clean::Crate, options: RenderOptions, cache: Cache, tcx: TyCtxt<'tcx>, + expanded_codes: FxHashMap<BytePos, Vec<ExpandedCode>>, ) -> Result<(Self, clean::Crate), Error> { // need to save a copy of the options for rendering the index page let md_opts = options.clone(); @@ -579,6 +574,7 @@ impl<'tcx> FormatRenderer<'tcx> for Context<'tcx> { cache, call_locations, should_merge: options.should_merge, + expanded_codes, }; let dst = output; @@ -604,6 +600,16 @@ impl<'tcx> FormatRenderer<'tcx> for Context<'tcx> { Ok((cx, krate)) } +} + +/// Generates the documentation for `crate` into the directory `dst` +impl<'tcx> FormatRenderer<'tcx> for Context<'tcx> { + fn descr() -> &'static str { + "html" + } + + const RUN_ON_MODULE: bool = true; + type ModuleData = ContextInfo; fn save_module_data(&mut self) -> Self::ModuleData { self.deref_id_map.borrow_mut().clear(); diff --git a/src/librustdoc/html/render/mod.rs b/src/librustdoc/html/render/mod.rs index 8d7f0577506..673947ad308 100644 --- a/src/librustdoc/html/render/mod.rs +++ b/src/librustdoc/html/render/mod.rs @@ -1029,6 +1029,7 @@ fn assoc_const( ) -> impl fmt::Display { let tcx = cx.tcx(); fmt::from_fn(move |w| { + render_attributes_in_code(w, it, &" ".repeat(indent), cx); write!( w, "{indent}{vis}const <a{href} class=\"constant\">{name}</a>{generics}: {ty}", @@ -1136,10 +1137,10 @@ fn assoc_method( let (indent, indent_str, end_newline) = if parent == ItemType::Trait { header_len += 4; let indent_str = " "; - write!(w, "{}", render_attributes_in_pre(meth, indent_str, cx))?; + render_attributes_in_code(w, meth, indent_str, cx); (4, indent_str, Ending::NoNewline) } else { - render_attributes_in_code(w, meth, cx); + render_attributes_in_code(w, meth, "", cx); (0, "", Ending::Newline) }; write!( @@ -1309,28 +1310,28 @@ fn render_assoc_item( }) } -// When an attribute is rendered inside a `<pre>` tag, it is formatted using -// a whitespace prefix and newline. -fn render_attributes_in_pre(it: &clean::Item, prefix: &str, cx: &Context<'_>) -> impl fmt::Display { - fmt::from_fn(move |f| { - for a in it.attributes(cx.tcx(), cx.cache()) { - writeln!(f, "{prefix}{a}")?; - } - Ok(()) - }) -} - struct CodeAttribute(String); -fn render_code_attribute(code_attr: CodeAttribute, w: &mut impl fmt::Write) { - write!(w, "<div class=\"code-attribute\">{}</div>", code_attr.0).unwrap(); +fn render_code_attribute(prefix: &str, code_attr: CodeAttribute, w: &mut impl fmt::Write) { + write!( + w, + "<div class=\"code-attribute\">{prefix}{attr}</div>", + prefix = prefix, + attr = code_attr.0 + ) + .unwrap(); } // When an attribute is rendered inside a <code> tag, it is formatted using // a div to produce a newline after it. -fn render_attributes_in_code(w: &mut impl fmt::Write, it: &clean::Item, cx: &Context<'_>) { +fn render_attributes_in_code( + w: &mut impl fmt::Write, + it: &clean::Item, + prefix: &str, + cx: &Context<'_>, +) { for attr in it.attributes(cx.tcx(), cx.cache()) { - render_code_attribute(CodeAttribute(attr), w); + render_code_attribute(prefix, CodeAttribute(attr), w); } } @@ -1342,7 +1343,7 @@ fn render_repr_attributes_in_code( item_type: ItemType, ) { if let Some(repr) = clean::repr_attributes(cx.tcx(), cx.cache(), def_id, item_type) { - render_code_attribute(CodeAttribute(repr), w); + render_code_attribute("", CodeAttribute(repr), w); } } diff --git a/src/librustdoc/html/render/print_item.rs b/src/librustdoc/html/render/print_item.rs index 407238d66b8..b86a2c94697 100644 --- a/src/librustdoc/html/render/print_item.rs +++ b/src/librustdoc/html/render/print_item.rs @@ -20,8 +20,8 @@ use super::{ AssocItemLink, AssocItemRender, Context, ImplRenderingParameters, RenderMode, collect_paths_for_type, document, ensure_trailing_slash, get_filtered_impls_for_reference, item_ty_to_section, notable_traits_button, notable_traits_json, render_all_impls, - render_assoc_item, render_assoc_items, render_attributes_in_code, render_attributes_in_pre, - render_impl, render_repr_attributes_in_code, render_rightside, render_stability_since_raw, + render_assoc_item, render_assoc_items, render_attributes_in_code, render_impl, + render_repr_attributes_in_code, render_rightside, render_stability_since_raw, render_stability_since_raw_with_extra, write_section_heading, }; use crate::clean; @@ -107,13 +107,6 @@ macro_rules! item_template_methods { } item_template_methods!($($rest)*); }; - (render_attributes_in_pre $($rest:tt)*) => { - fn render_attributes_in_pre(&self) -> impl fmt::Display { - let (item, cx) = self.item_and_cx(); - render_attributes_in_pre(item, "", cx) - } - item_template_methods!($($rest)*); - }; (render_assoc_items $($rest:tt)*) => { fn render_assoc_items(&self) -> impl fmt::Display { let (item, cx) = self.item_and_cx(); @@ -457,7 +450,12 @@ fn item_module(cx: &Context<'_>, item: &clean::Item, items: &[clean::Item]) -> i write!( w, "<dt{id}>\ - <code>{vis}{imp}</code>{stab_tags}\ + <code>" + )?; + render_attributes_in_code(w, myitem, "", cx); + write!( + w, + "{vis}{imp}</code>{stab_tags}\ </dt>", vis = visibility_print_with_space(myitem, cx), imp = import.print(cx) @@ -625,11 +623,11 @@ fn item_function(cx: &Context<'_>, it: &clean::Item, f: &clean::Function) -> imp let notable_traits = notable_traits_button(&f.decl.output, cx).maybe_display(); wrap_item(w, |w| { + render_attributes_in_code(w, it, "", cx); write!( w, - "{attrs}{vis}{constness}{asyncness}{safety}{abi}fn \ + "{vis}{constness}{asyncness}{safety}{abi}fn \ {name}{generics}{decl}{notable_traits}{where_clause}", - attrs = render_attributes_in_pre(it, "", cx), vis = visibility, constness = constness, asyncness = asyncness, @@ -666,10 +664,10 @@ fn item_trait(cx: &Context<'_>, it: &clean::Item, t: &clean::Trait) -> impl fmt: // Output the trait definition wrap_item(w, |mut w| { + render_attributes_in_code(&mut w, it, "", cx); write!( w, - "{attrs}{vis}{safety}{is_auto}trait {name}{generics}{bounds}", - attrs = render_attributes_in_pre(it, "", cx), + "{vis}{safety}{is_auto}trait {name}{generics}{bounds}", vis = visibility_print_with_space(it, cx), safety = t.safety(tcx).print_with_space(), is_auto = if t.is_auto(tcx) { "auto " } else { "" }, @@ -1240,10 +1238,10 @@ fn item_trait_alias( ) -> impl fmt::Display { fmt::from_fn(|w| { wrap_item(w, |w| { + render_attributes_in_code(w, it, "", cx); write!( w, - "{attrs}trait {name}{generics} = {bounds}{where_clause};", - attrs = render_attributes_in_pre(it, "", cx), + "trait {name}{generics} = {bounds}{where_clause};", name = it.name.unwrap(), generics = t.generics.print(cx), bounds = print_bounds(&t.bounds, true, cx), @@ -1268,10 +1266,10 @@ fn item_trait_alias( fn item_type_alias(cx: &Context<'_>, it: &clean::Item, t: &clean::TypeAlias) -> impl fmt::Display { fmt::from_fn(|w| { wrap_item(w, |w| { + render_attributes_in_code(w, it, "", cx); write!( w, - "{attrs}{vis}type {name}{generics}{where_clause} = {type_};", - attrs = render_attributes_in_pre(it, "", cx), + "{vis}type {name}{generics}{where_clause} = {type_};", vis = visibility_print_with_space(it, cx), name = it.name.unwrap(), generics = t.generics.print(cx), @@ -1452,7 +1450,21 @@ item_template!( impl<'a, 'cx: 'a> ItemUnion<'a, 'cx> { fn render_union(&self) -> impl Display { - render_union(self.it, Some(self.generics), self.fields, self.cx) + render_union( + self.it, + Some(self.generics), + self.fields, + self.def_id, + self.is_type_alias, + self.cx, + ) + } + + fn print_field_attrs(&self, field: &'a clean::Item) -> impl Display { + fmt::from_fn(move |w| { + render_attributes_in_code(w, field, "", self.cx); + Ok(()) + }) } fn document_field(&self, field: &'a clean::Item) -> impl Display { @@ -1479,27 +1491,6 @@ impl<'a, 'cx: 'a> ItemUnion<'a, 'cx> { _ => None, }) } - - fn render_attributes_in_pre(&self) -> impl fmt::Display { - fmt::from_fn(move |f| { - if self.is_type_alias { - // For now the only attributes we render for type aliases are `repr` attributes. - if let Some(repr) = clean::repr_attributes( - self.cx.tcx(), - self.cx.cache(), - self.def_id, - ItemType::Union, - ) { - writeln!(f, "{repr}")?; - }; - } else { - for a in self.it.attributes(self.cx.tcx(), self.cx.cache()) { - writeln!(f, "{a}")?; - } - } - Ok(()) - }) - } } fn item_union(cx: &Context<'_>, it: &clean::Item, s: &clean::Union) -> impl fmt::Display { @@ -1563,7 +1554,7 @@ impl<'clean> DisplayEnum<'clean> { // For now the only attributes we render for type aliases are `repr` attributes. render_repr_attributes_in_code(w, cx, self.def_id, ItemType::Enum); } else { - render_attributes_in_code(w, it, cx); + render_attributes_in_code(w, it, "", cx); } write!( w, @@ -1702,7 +1693,7 @@ fn render_enum_fields( if v.is_stripped() { continue; } - write!(w, "{}", render_attributes_in_pre(v, TAB, cx))?; + render_attributes_in_code(w, v, TAB, cx); w.write_str(TAB)?; match v.kind { clean::VariantItem(ref var) => match var.kind { @@ -1786,6 +1777,7 @@ fn item_variants( ) .maybe_display() )?; + render_attributes_in_code(w, variant, "", cx); if let clean::VariantItem(ref var) = variant.kind && let clean::VariantKind::CLike = var.kind { @@ -1859,7 +1851,12 @@ fn item_variants( "<div class=\"sub-variant-field\">\ <span id=\"{id}\" class=\"section-header\">\ <a href=\"#{id}\" class=\"anchor field\">§</a>\ - <code>{f}: {t}</code>\ + <code>" + )?; + render_attributes_in_code(w, field, "", cx); + write!( + w, + "{f}: {t}</code>\ </span>\ {doc}\ </div>", @@ -1882,6 +1879,7 @@ fn item_macro(cx: &Context<'_>, it: &clean::Item, t: &clean::Macro) -> impl fmt: fmt::from_fn(|w| { wrap_item(w, |w| { // FIXME: Also print `#[doc(hidden)]` for `macro_rules!` if it `is_doc_hidden`. + render_attributes_in_code(w, it, "", cx); if !t.macro_rules { write!(w, "{}", visibility_print_with_space(it, cx))?; } @@ -1950,7 +1948,7 @@ fn item_constant( fmt::from_fn(|w| { wrap_item(w, |w| { let tcx = cx.tcx(); - render_attributes_in_code(w, it, cx); + render_attributes_in_code(w, it, "", cx); write!( w, @@ -2018,7 +2016,7 @@ impl<'a> DisplayStruct<'a> { // For now the only attributes we render for type aliases are `repr` attributes. render_repr_attributes_in_code(w, cx, self.def_id, ItemType::Struct); } else { - render_attributes_in_code(w, it, cx); + render_attributes_in_code(w, it, "", cx); } write!( w, @@ -2094,10 +2092,15 @@ fn item_fields( w, "<span id=\"{id}\" class=\"{item_type} section-header\">\ <a href=\"#{id}\" class=\"anchor field\">§</a>\ - <code>{field_name}: {ty}</code>\ + <code>", + item_type = ItemType::StructField, + )?; + render_attributes_in_code(w, field, "", cx); + write!( + w, + "{field_name}: {ty}</code>\ </span>\ {doc}", - item_type = ItemType::StructField, ty = ty.print(cx), doc = document(cx, field, Some(it), HeadingOffset::H3), )?; @@ -2115,7 +2118,7 @@ fn item_static( ) -> impl fmt::Display { fmt::from_fn(move |w| { wrap_item(w, |w| { - render_attributes_in_code(w, it, cx); + render_attributes_in_code(w, it, "", cx); write!( w, "{vis}{safe}static {mutability}{name}: {typ}", @@ -2135,7 +2138,7 @@ fn item_foreign_type(cx: &Context<'_>, it: &clean::Item) -> impl fmt::Display { fmt::from_fn(|w| { wrap_item(w, |w| { w.write_str("extern {\n")?; - render_attributes_in_code(w, it, cx); + render_attributes_in_code(w, it, "", cx); write!(w, " {}type {};\n}}", visibility_print_with_space(it, cx), it.name.unwrap(),) })?; @@ -2358,9 +2361,17 @@ fn render_union( it: &clean::Item, g: Option<&clean::Generics>, fields: &[clean::Item], + def_id: DefId, + is_type_alias: bool, cx: &Context<'_>, ) -> impl Display { fmt::from_fn(move |mut f| { + if is_type_alias { + // For now the only attributes we render for type aliases are `repr` attributes. + render_repr_attributes_in_code(f, cx, def_id, ItemType::Union); + } else { + render_attributes_in_code(f, it, "", cx); + } write!(f, "{}union {}", visibility_print_with_space(it, cx), it.name.unwrap(),)?; let where_displayed = if let Some(generics) = g { @@ -2390,6 +2401,7 @@ fn render_union( for field in fields { if let clean::StructFieldItem(ref ty) = field.kind { + render_attributes_in_code(&mut f, field, " ", cx); writeln!( f, " {}{}: {},", @@ -2481,11 +2493,15 @@ fn render_struct_fields( if toggle { toggle_open(&mut *w, format_args!("{count_fields} fields")); } + if has_visible_fields { + writeln!(w)?; + } for field in fields { if let clean::StructFieldItem(ref ty) = field.kind { - write!( + render_attributes_in_code(w, field, &format!("{tab} "), cx); + writeln!( w, - "\n{tab} {vis}{name}: {ty},", + "{tab} {vis}{name}: {ty},", vis = visibility_print_with_space(field, cx), name = field.name.unwrap(), ty = ty.print(cx) @@ -2495,12 +2511,12 @@ fn render_struct_fields( if has_visible_fields { if has_stripped_entries { - write!( + writeln!( w, - "\n{tab} <span class=\"comment\">/* private fields */</span>" + "{tab} <span class=\"comment\">/* private fields */</span>" )?; } - write!(w, "\n{tab}")?; + write!(w, "{tab}")?; } else if has_stripped_entries { write!(w, " <span class=\"comment\">/* private fields */</span> ")?; } diff --git a/src/librustdoc/html/render/search_index.rs b/src/librustdoc/html/render/search_index.rs index 41657e290ea..dddc087d124 100644 --- a/src/librustdoc/html/render/search_index.rs +++ b/src/librustdoc/html/render/search_index.rs @@ -1494,7 +1494,9 @@ pub(crate) fn build_index( let search_unbox = match id { RenderTypeId::Mut => false, RenderTypeId::DefId(defid) => utils::has_doc_flag(tcx, defid, sym::search_unbox), - RenderTypeId::Primitive(PrimitiveType::Reference | PrimitiveType::Tuple) => true, + RenderTypeId::Primitive( + PrimitiveType::Reference | PrimitiveType::RawPointer | PrimitiveType::Tuple, + ) => true, RenderTypeId::Primitive(..) => false, RenderTypeId::AssociatedType(..) => false, // this bool is only used by `insert_into_map`, so it doesn't matter what we set here @@ -1855,7 +1857,7 @@ fn get_index_type_id( } clean::Primitive(p) => Some(RenderTypeId::Primitive(p)), clean::BorrowedRef { .. } => Some(RenderTypeId::Primitive(clean::PrimitiveType::Reference)), - clean::RawPointer(_, ref type_) => get_index_type_id(type_, rgen), + clean::RawPointer { .. } => Some(RenderTypeId::Primitive(clean::PrimitiveType::RawPointer)), // The type parameters are converted to generics in `simplify_fn_type` clean::Slice(_) => Some(RenderTypeId::Primitive(clean::PrimitiveType::Slice)), clean::Array(_, _) => Some(RenderTypeId::Primitive(clean::PrimitiveType::Array)), @@ -2113,7 +2115,8 @@ fn simplify_fn_type<'a, 'tcx>( generics: Some(ty_generics), }); } - Type::BorrowedRef { lifetime: _, mutability, ref type_ } => { + Type::BorrowedRef { lifetime: _, mutability, ref type_ } + | Type::RawPointer(mutability, ref type_) => { let mut ty_generics = Vec::new(); if mutability.is_mut() { ty_generics.push(RenderType { diff --git a/src/librustdoc/html/render/span_map.rs b/src/librustdoc/html/render/span_map.rs index 846d3ad310c..8bc2e0bd957 100644 --- a/src/librustdoc/html/render/span_map.rs +++ b/src/librustdoc/html/render/span_map.rs @@ -35,7 +35,7 @@ pub(crate) enum LinkFromSrc { /// 1. Generate a `span` correspondence map which links an item `span` to its definition `span`. /// 2. Collect the source code files. /// -/// It returns the `krate`, the source code files and the `span` correspondence map. +/// It returns the source code files and the `span` correspondence map. /// /// Note about the `span` correspondence map: the keys are actually `(lo, hi)` of `span`s. We don't /// need the `span` context later on, only their position, so instead of keeping a whole `Span`, we diff --git a/src/librustdoc/html/static/css/rustdoc.css b/src/librustdoc/html/static/css/rustdoc.css index dc27d7943d9..86f1a42bc01 100644 --- a/src/librustdoc/html/static/css/rustdoc.css +++ b/src/librustdoc/html/static/css/rustdoc.css @@ -956,6 +956,40 @@ rustdoc-topbar { .example-wrap.digits-8 { --example-wrap-digits-count: 8ch; } .example-wrap.digits-9 { --example-wrap-digits-count: 9ch; } +.example-wrap .expansion { + position: relative; + display: inline; +} +.example-wrap .expansion > input { + display: block; + position: absolute; + appearance: none; + content: '↕'; + left: -20px; + top: 0; + border: 1px solid var(--border-color); + border-radius: 4px; + cursor: pointer; + color: var(--main-color); + padding: 0 2px; + line-height: 20px; +} +.example-wrap .expansion > input::after { + content: "↕"; +} +.example-wrap .expansion .expanded { + display: none; + color: var(--main-color); +} +.example-wrap .expansion > input:checked ~ .expanded, +.example-wrap .expansion > input:checked ~ * .expanded { + display: inherit; +} +.example-wrap .expansion > input:checked ~ .original, +.example-wrap .expansion > input:checked ~ * .original { + display: none; +} + .example-wrap [data-nosnippet] { width: calc(var(--example-wrap-digits-count) + var(--line-number-padding) * 2); } @@ -964,6 +998,17 @@ rustdoc-topbar { var(--example-wrap-digits-count) + var(--line-number-padding) * 2 + var(--line-number-right-margin)); } +.src .example-wrap .expansion [data-nosnippet] { + /* FIXME: Once <https://bugzilla.mozilla.org/show_bug.cgi?id=1949948> is solved, uncomment + next line and remove the two other rules. */ + /*left: calc(( + var(--example-wrap-digits-count) + var(--line-number-padding) * 2 + + var(--line-number-right-margin)) * -1);*/ + position: initial; + margin-left: calc(( + var(--example-wrap-digits-count) + var(--line-number-padding) * 2 + + var(--line-number-right-margin)) * -1); +} .example-wrap [data-nosnippet] { color: var(--src-line-numbers-span-color); @@ -978,9 +1023,6 @@ rustdoc-topbar { position: absolute; left: 0; } -.example-wrap .line-highlighted[data-nosnippet] { - background-color: var(--src-line-number-highlighted-background-color); -} .example-wrap pre > code { position: relative; display: block; @@ -995,6 +1037,9 @@ rustdoc-topbar { .example-wrap [data-nosnippet]:target { border-right: none; } +.example-wrap .line-highlighted[data-nosnippet] { + background-color: var(--src-line-number-highlighted-background-color); +} .example-wrap.hide-lines [data-nosnippet] { display: none; } diff --git a/src/librustdoc/html/static/js/main.js b/src/librustdoc/html/static/js/main.js index af43fd48dd1..4fcba5f120b 100644 --- a/src/librustdoc/html/static/js/main.js +++ b/src/librustdoc/html/static/js/main.js @@ -407,9 +407,7 @@ function preLoadCss(cssUrl) { function loadSearch() { if (!searchLoaded) { searchLoaded = true; - // @ts-expect-error window.rr_ = data => { - // @ts-expect-error window.searchIndex = data; }; if (!window.StringdexOnload) { @@ -1277,13 +1275,11 @@ function preLoadCss(cssUrl) { } window.addEventListener("resize", () => { - // @ts-expect-error if (window.CURRENT_TOOLTIP_ELEMENT) { // As a workaround to the behavior of `contains: layout` used in doc togglers, // tooltip popovers are positioned using javascript. // // This means when the window is resized, we need to redo the layout. - // @ts-expect-error const base = window.CURRENT_TOOLTIP_ELEMENT.TOOLTIP_BASE; const force_visible = base.TOOLTIP_FORCE_VISIBLE; hideTooltip(false); @@ -1329,11 +1325,9 @@ function preLoadCss(cssUrl) { */ function showTooltip(e) { const notable_ty = e.getAttribute("data-notable-ty"); - // @ts-expect-error if (!window.NOTABLE_TRAITS && notable_ty) { const data = document.getElementById("notable-traits-data"); if (data) { - // @ts-expect-error window.NOTABLE_TRAITS = JSON.parse(data.innerText); } else { throw new Error("showTooltip() called with notable without any notable traits!"); @@ -1341,14 +1335,15 @@ function preLoadCss(cssUrl) { } // Make this function idempotent. If the tooltip is already shown, avoid doing extra work // and leave it alone. - // @ts-expect-error if (window.CURRENT_TOOLTIP_ELEMENT && window.CURRENT_TOOLTIP_ELEMENT.TOOLTIP_BASE === e) { - // @ts-expect-error clearTooltipHoverTimeout(window.CURRENT_TOOLTIP_ELEMENT); return; } window.hideAllModals(false); - const wrapper = document.createElement("div"); + // use Object.assign to make sure the object has the correct type + // with all of the correct fields before it is assigned to a variable, + // as typescript has no way to change the type of a variable once it is initialized. + const wrapper = Object.assign(document.createElement("div"), {TOOLTIP_BASE: e}); if (notable_ty) { wrapper.innerHTML = "<div class=\"content\">" + // @ts-expect-error @@ -1394,11 +1389,7 @@ function preLoadCss(cssUrl) { ); } wrapper.style.visibility = ""; - // @ts-expect-error window.CURRENT_TOOLTIP_ELEMENT = wrapper; - // @ts-expect-error - window.CURRENT_TOOLTIP_ELEMENT.TOOLTIP_BASE = e; - // @ts-expect-error clearTooltipHoverTimeout(window.CURRENT_TOOLTIP_ELEMENT); wrapper.onpointerenter = ev => { // If this is a synthetic touch event, ignore it. A click event will be along shortly. @@ -1433,19 +1424,15 @@ function preLoadCss(cssUrl) { */ function setTooltipHoverTimeout(element, show) { clearTooltipHoverTimeout(element); - // @ts-expect-error if (!show && !window.CURRENT_TOOLTIP_ELEMENT) { // To "hide" an already hidden element, just cancel its timeout. return; } - // @ts-expect-error if (show && window.CURRENT_TOOLTIP_ELEMENT) { // To "show" an already visible element, just cancel its timeout. return; } - // @ts-expect-error if (window.CURRENT_TOOLTIP_ELEMENT && - // @ts-expect-error window.CURRENT_TOOLTIP_ELEMENT.TOOLTIP_BASE !== element) { // Don't do anything if another tooltip is already visible. return; @@ -1468,24 +1455,20 @@ function preLoadCss(cssUrl) { */ function clearTooltipHoverTimeout(element) { if (element.TOOLTIP_HOVER_TIMEOUT !== undefined) { - // @ts-expect-error removeClass(window.CURRENT_TOOLTIP_ELEMENT, "fade-out"); clearTimeout(element.TOOLTIP_HOVER_TIMEOUT); delete element.TOOLTIP_HOVER_TIMEOUT; } } - // @ts-expect-error + /** + * @param {Event & { relatedTarget: Node }} event + */ function tooltipBlurHandler(event) { - // @ts-expect-error if (window.CURRENT_TOOLTIP_ELEMENT && - // @ts-expect-error !window.CURRENT_TOOLTIP_ELEMENT.contains(document.activeElement) && - // @ts-expect-error !window.CURRENT_TOOLTIP_ELEMENT.contains(event.relatedTarget) && - // @ts-expect-error !window.CURRENT_TOOLTIP_ELEMENT.TOOLTIP_BASE.contains(document.activeElement) && - // @ts-expect-error !window.CURRENT_TOOLTIP_ELEMENT.TOOLTIP_BASE.contains(event.relatedTarget) ) { // Work around a difference in the focus behaviour between Firefox, Chrome, and Safari. @@ -1507,30 +1490,22 @@ function preLoadCss(cssUrl) { * If set to `false`, leave keyboard focus alone. */ function hideTooltip(focus) { - // @ts-expect-error if (window.CURRENT_TOOLTIP_ELEMENT) { - // @ts-expect-error if (window.CURRENT_TOOLTIP_ELEMENT.TOOLTIP_BASE.TOOLTIP_FORCE_VISIBLE) { if (focus) { - // @ts-expect-error window.CURRENT_TOOLTIP_ELEMENT.TOOLTIP_BASE.focus(); } - // @ts-expect-error window.CURRENT_TOOLTIP_ELEMENT.TOOLTIP_BASE.TOOLTIP_FORCE_VISIBLE = false; } - // @ts-expect-error document.body.removeChild(window.CURRENT_TOOLTIP_ELEMENT); - // @ts-expect-error clearTooltipHoverTimeout(window.CURRENT_TOOLTIP_ELEMENT); - // @ts-expect-error - window.CURRENT_TOOLTIP_ELEMENT = null; + window.CURRENT_TOOLTIP_ELEMENT = undefined; } } onEachLazy(document.getElementsByClassName("tooltip"), e => { e.onclick = () => { e.TOOLTIP_FORCE_VISIBLE = e.TOOLTIP_FORCE_VISIBLE ? false : true; - // @ts-expect-error if (window.CURRENT_TOOLTIP_ELEMENT && !e.TOOLTIP_FORCE_VISIBLE) { hideTooltip(true); } else { @@ -1566,9 +1541,7 @@ function preLoadCss(cssUrl) { if (ev.pointerType !== "mouse") { return; } - // @ts-expect-error if (!e.TOOLTIP_FORCE_VISIBLE && window.CURRENT_TOOLTIP_ELEMENT && - // @ts-expect-error !window.CURRENT_TOOLTIP_ELEMENT.contains(ev.relatedTarget)) { // Tooltip pointer leave gesture: // @@ -1601,7 +1574,6 @@ function preLoadCss(cssUrl) { // * https://www.nngroup.com/articles/tooltip-guidelines/ // * https://bjk5.com/post/44698559168/breaking-down-amazons-mega-dropdown setTooltipHoverTimeout(e, false); - // @ts-expect-error addClass(window.CURRENT_TOOLTIP_ELEMENT, "fade-out"); } }; @@ -1649,7 +1621,7 @@ function preLoadCss(cssUrl) { ["⏎", "Go to active search result"], ["+", "Expand all sections"], ["-", "Collapse all sections"], - // for the sake of brevity, we don't say "inherint impl blocks", + // for the sake of brevity, we don't say "inherit impl blocks", // although that would be more correct, // since trait impl blocks are collapsed by - ["_", "Collapse all sections, including impl blocks"], @@ -1707,8 +1679,7 @@ function preLoadCss(cssUrl) { if (isHelpPage) { const help_section = document.createElement("section"); help_section.appendChild(container); - // @ts-expect-error - document.getElementById("main-content").appendChild(help_section); + nonnull(document.getElementById("main-content")).appendChild(help_section); } else { onEachLazy(document.getElementsByClassName("help-menu"), menu => { if (menu.offsetWidth !== 0) { @@ -1854,8 +1825,7 @@ function preLoadCss(cssUrl) { sidebarButton.addEventListener("click", e => { removeClass(document.documentElement, "hide-sidebar"); updateLocalStorage("hide-sidebar", "false"); - if (document.querySelector(".rustdoc.src")) { - // @ts-expect-error + if (window.rustdocToggleSrcSidebar) { window.rustdocToggleSrcSidebar(); } e.preventDefault(); diff --git a/src/librustdoc/html/static/js/rustdoc.d.ts b/src/librustdoc/html/static/js/rustdoc.d.ts index 56581aebf06..3ac10742e41 100644 --- a/src/librustdoc/html/static/js/rustdoc.d.ts +++ b/src/librustdoc/html/static/js/rustdoc.d.ts @@ -28,6 +28,9 @@ declare global { currentTheme: HTMLLinkElement|null; /** Generated in `render/context.rs` */ SIDEBAR_ITEMS?: { [key: string]: string[] }; + /** Notable trait data */ + NOTABLE_TRAITS?: { [key: string]: string }; + CURRENT_TOOLTIP_ELEMENT?: HTMLElement & { TOOLTIP_BASE: HTMLElement }; /** Used by the popover tooltip code. */ RUSTDOC_TOOLTIP_HOVER_MS: number; /** Used by the popover tooltip code. */ @@ -93,6 +96,10 @@ declare global { pending_type_impls?: rustdoc.TypeImpls, rustdoc_add_line_numbers_to_examples?: function(), rustdoc_remove_line_numbers_from_examples?: function(), + /** JSON-encoded raw search index */ + searchIndex: string, + /** Used in search index shards in order to load data into the in-memory database */ + rr_: function(string), } interface HTMLElement { /** Used by the popover tooltip code. */ @@ -514,4 +521,13 @@ declare namespace rustdoc { options?: string[], default: string | boolean, } + + /** + * Single element in the data-locs field of a scraped example. + * First field is the start and end char index, + * other fields seem to be unused. + * + * Generated by `render_call_locations` in `render/mod.rs`. + */ + type ScrapedLoc = [[number, number], string, string] } diff --git a/src/librustdoc/html/static/js/scrape-examples.js b/src/librustdoc/html/static/js/scrape-examples.js index d641405c875..eeab591bcd8 100644 --- a/src/librustdoc/html/static/js/scrape-examples.js +++ b/src/librustdoc/html/static/js/scrape-examples.js @@ -1,7 +1,4 @@ -/* global addClass, hasClass, removeClass, onEachLazy */ - -// Eventually fix this. -// @ts-nocheck + /* global addClass, hasClass, removeClass, onEachLazy, nonnull */ "use strict"; @@ -14,8 +11,16 @@ const DEFAULT_MAX_LINES = 5; const HIDDEN_MAX_LINES = 10; - // Scroll code block to the given code location + /** + * Scroll code block to the given code location + * @param {HTMLElement} elt + * @param {[number, number]} loc + * @param {boolean} isHidden + */ function scrollToLoc(elt, loc, isHidden) { + /** @type {HTMLElement[]} */ + // blocked on https://github.com/microsoft/TypeScript/issues/29037 + // @ts-expect-error const lines = elt.querySelectorAll("[data-nosnippet]"); let scrollOffset; @@ -35,10 +40,15 @@ scrollOffset = offsetMid - halfHeight; } - lines[0].parentElement.scrollTo(0, scrollOffset); - elt.querySelector(".rust").scrollTo(0, scrollOffset); + nonnull(lines[0].parentElement).scrollTo(0, scrollOffset); + nonnull(elt.querySelector(".rust")).scrollTo(0, scrollOffset); } + /** + * @param {HTMLElement} parent + * @param {string} className + * @param {string} content + */ function createScrapeButton(parent, className, content) { const button = document.createElement("button"); button.className = className; @@ -50,20 +60,24 @@ window.updateScrapedExample = (example, buttonHolder) => { let locIndex = 0; const highlights = Array.prototype.slice.call(example.querySelectorAll(".highlight")); - const link = example.querySelector(".scraped-example-title a"); + + /** @type {HTMLAnchorElement} */ + const link = nonnull(example.querySelector(".scraped-example-title a")); let expandButton = null; if (!example.classList.contains("expanded")) { expandButton = createScrapeButton(buttonHolder, "expand", "Show all"); } - const isHidden = example.parentElement.classList.contains("more-scraped-examples"); + const isHidden = nonnull(example.parentElement).classList.contains("more-scraped-examples"); + // @ts-expect-error const locs = example.locs; if (locs.length > 1) { const next = createScrapeButton(buttonHolder, "next", "Next usage"); const prev = createScrapeButton(buttonHolder, "prev", "Previous usage"); // Toggle through list of examples in a given file + /** @type {function(function(): void): void} */ const onChangeLoc = changeIndex => { removeClass(highlights[locIndex], "focus"); changeIndex(); @@ -106,10 +120,19 @@ } }; + /** + * Initialize the `locs` field + * + * @param {HTMLElement & {locs?: rustdoc.ScrapedLoc[]}} example + * @param {boolean} isHidden + */ function setupLoc(example, isHidden) { - example.locs = JSON.parse(example.attributes.getNamedItem("data-locs").textContent); + const locs_str = nonnull(example.attributes.getNamedItem("data-locs")).textContent; + const locs = + JSON.parse(nonnull(nonnull(locs_str))); + example.locs = locs; // Start with the first example in view - scrollToLoc(example, example.locs[0][0], isHidden); + scrollToLoc(example, locs[0][0], isHidden); } const firstExamples = document.querySelectorAll(".scraped-example-list > .scraped-example"); diff --git a/src/librustdoc/html/static/js/search.js b/src/librustdoc/html/static/js/search.js index d55208150b8..3fb4db3a89c 100644 --- a/src/librustdoc/html/static/js/search.js +++ b/src/librustdoc/html/static/js/search.js @@ -587,6 +587,45 @@ function getNextElem(query, parserState, elems, isInGenerics) { /** @type {rustdoc.ParserQueryElement[]} */ const generics = []; + /** @type {function(string, string): void} */ + const handleRefOrPtr = (chr, name) => { + if (parserState.typeFilter !== null && parserState.typeFilter !== "primitive") { + throw [ + "Invalid search type: primitive ", + chr, + " and ", + parserState.typeFilter, + " both specified", + ]; + } + parserState.typeFilter = null; + parserState.pos += 1; + let c = parserState.userQuery[parserState.pos]; + while (c === " " && parserState.pos < parserState.length) { + parserState.pos += 1; + c = parserState.userQuery[parserState.pos]; + } + const generics = []; + const pos = parserState.pos; + if (parserState.userQuery.slice(pos, pos + 3) === "mut") { + generics.push(makePrimitiveElement("mut", { typeFilter: "keyword" })); + parserState.pos += 3; + c = parserState.userQuery[parserState.pos]; + } else if (chr === "*" && parserState.userQuery.slice(pos, pos + 5) === "const") { + // make *const T parse the same as *T + parserState.pos += 5; + c = parserState.userQuery[parserState.pos]; + } + while (c === " " && parserState.pos < parserState.length) { + parserState.pos += 1; + c = parserState.userQuery[parserState.pos]; + } + if (!isEndCharacter(c) && parserState.pos < parserState.length) { + getFilteredNextElem(query, parserState, generics, isInGenerics); + } + elems.push(makePrimitiveElement(name, { generics })); + }; + skipWhitespace(parserState); let start = parserState.pos; let end; @@ -636,36 +675,9 @@ function getNextElem(query, parserState, elems, isInGenerics) { elems.push(makePrimitiveElement(name, { bindingName, generics })); } } else if (parserState.userQuery[parserState.pos] === "&") { - if (parserState.typeFilter !== null && parserState.typeFilter !== "primitive") { - throw [ - "Invalid search type: primitive ", - "&", - " and ", - parserState.typeFilter, - " both specified", - ]; - } - parserState.typeFilter = null; - parserState.pos += 1; - let c = parserState.userQuery[parserState.pos]; - while (c === " " && parserState.pos < parserState.length) { - parserState.pos += 1; - c = parserState.userQuery[parserState.pos]; - } - const generics = []; - if (parserState.userQuery.slice(parserState.pos, parserState.pos + 3) === "mut") { - generics.push(makePrimitiveElement("mut", { typeFilter: "keyword" })); - parserState.pos += 3; - c = parserState.userQuery[parserState.pos]; - } - while (c === " " && parserState.pos < parserState.length) { - parserState.pos += 1; - c = parserState.userQuery[parserState.pos]; - } - if (!isEndCharacter(c) && parserState.pos < parserState.length) { - getFilteredNextElem(query, parserState, generics, isInGenerics); - } - elems.push(makePrimitiveElement("reference", { generics })); + handleRefOrPtr("&", "reference"); + } else if (parserState.userQuery[parserState.pos] === "*") { + handleRefOrPtr("*", "pointer"); } else { const isStringElem = parserState.userQuery[start] === "\""; // We handle the strings on their own mostly to make code easier to follow. @@ -1185,6 +1197,7 @@ class DocSearch { this.typeNameIdOfUnit = -1; this.typeNameIdOfTupleOrUnit = -1; this.typeNameIdOfReference = -1; + this.typeNameIdOfPointer = -1; this.typeNameIdOfHof = -1; this.utf8decoder = new TextDecoder(); @@ -1224,6 +1237,7 @@ class DocSearch { tupleOrUnit, // reference matches `&` reference, + pointer, // never matches `!` never, ] = await Promise.all([ @@ -1239,6 +1253,7 @@ class DocSearch { nn.search("unit"), nn.search("()"), nn.search("reference"), + nn.search("pointer"), nn.search("never"), ]); /** @@ -1270,6 +1285,7 @@ class DocSearch { this.typeNameIdOfUnit = await first(unit, TY_PRIMITIVE, ""); this.typeNameIdOfTupleOrUnit = await first(tupleOrUnit, TY_PRIMITIVE, ""); this.typeNameIdOfReference = await first(reference, TY_PRIMITIVE, ""); + this.typeNameIdOfPointer = await first(pointer, TY_PRIMITIVE, ""); this.typeNameIdOfHof = await first(hof, TY_PRIMITIVE, ""); this.typeNameIdOfNever = await first(never, TY_PRIMITIVE, ""); } @@ -2309,6 +2325,25 @@ class DocSearch { }, result), ); return true; + } else if (fnType.id === this.typeNameIdOfPointer) { + pushText({ name: "*", highlighted: fnType.highlighted }, result); + if (fnType.generics.length < 2) { + pushText({ name: "const ", highlighted: fnType.highlighted }, result); + } + let prevHighlighted = false; + await onEachBtwnAsync( + fnType.generics, + async value => { + prevHighlighted = !!value.highlighted; + await writeFn(value, result); + }, + // @ts-expect-error + value => pushText({ + name: " ", + highlighted: prevHighlighted && value.highlighted, + }, result), + ); + return true; } else if ( fnType.id === this.typeNameIdOfFn || fnType.id === this.typeNameIdOfFnMut || @@ -5244,15 +5279,13 @@ if (typeof window !== "undefined") { // search.index/root is loaded by main.js, so // this script doesn't need to launch it, but // must pick it up - // @ts-ignore if (window.searchIndex) { - // @ts-ignore window.rr_(window.searchIndex); } }, loadTreeByHash: hashHex => { const script = document.createElement("script"); - script.src = `${ROOT_PATH}/search.index/${hashHex}.js`; + script.src = `${ROOT_PATH}search.index/${hashHex}.js`; script.onerror = e => { if (databaseCallbacks) { databaseCallbacks.err_rn_(hashHex, e); @@ -5262,7 +5295,7 @@ if (typeof window !== "undefined") { }, loadDataByNameAndHash: (name, hashHex) => { const script = document.createElement("script"); - script.src = `${ROOT_PATH}/search.index/${name}/${hashHex}.js`; + script.src = `${ROOT_PATH}search.index/${name}/${hashHex}.js`; script.onerror = e => { if (databaseCallbacks) { databaseCallbacks.err_rd_(hashHex, e); diff --git a/src/librustdoc/html/static/js/storage.js b/src/librustdoc/html/static/js/storage.js index c055eb0f808..40ab8be03c9 100644 --- a/src/librustdoc/html/static/js/storage.js +++ b/src/librustdoc/html/static/js/storage.js @@ -117,7 +117,7 @@ function addClass(elem, className) { * Remove a class from a DOM Element. If `elem` is null, * does nothing. This function is idempotent. * - * @param {Element|null} elem + * @param {Element|null|undefined} elem * @param {string} className */ // eslint-disable-next-line no-unused-vars diff --git a/src/librustdoc/html/templates/item_union.html b/src/librustdoc/html/templates/item_union.html index b5d3367a6a1..171e079ed13 100644 --- a/src/librustdoc/html/templates/item_union.html +++ b/src/librustdoc/html/templates/item_union.html @@ -1,5 +1,4 @@ <pre class="rust item-decl"><code> - {{ self.render_attributes_in_pre()|safe }} {{ self.render_union()|safe }} </code></pre> {% if !self.is_type_alias %} @@ -13,7 +12,7 @@ {% let name = field.name.expect("union field name") %} <span id="structfield.{{ name }}" class="{{ ItemType::StructField +}} section-header"> {# #} <a href="#structfield.{{ name }}" class="anchor field">§</a> {# #} - <code>{{ name }}: {{+ self.print_ty(ty)|safe }}</code> {# #} + <code>{{+ self.print_field_attrs(field)|safe }}{{ name }}: {{+ self.print_ty(ty)|safe }}</code> {# #} </span> {% if let Some(stability_class) = self.stability_field(field) %} <span class="stab {{ stability_class }}"></span> diff --git a/src/librustdoc/json/conversions.rs b/src/librustdoc/json/conversions.rs index f966d926562..5fab8ad2a4b 100644 --- a/src/librustdoc/json/conversions.rs +++ b/src/librustdoc/json/conversions.rs @@ -930,7 +930,7 @@ fn maybe_from_hir_attr( ), AK::ExportName { name, span: _ } => Attribute::ExportName(name.to_string()), AK::LinkSection { name, span: _ } => Attribute::LinkSection(name.to_string()), - AK::TargetFeature(features, _span) => Attribute::TargetFeature { + AK::TargetFeature { features, .. } => Attribute::TargetFeature { enable: features.iter().map(|(feat, _span)| feat.to_string()).collect(), }, diff --git a/src/librustdoc/json/mod.rs b/src/librustdoc/json/mod.rs index 760e48baffa..b724d7e866a 100644 --- a/src/librustdoc/json/mod.rs +++ b/src/librustdoc/json/mod.rs @@ -175,15 +175,8 @@ fn target(sess: &rustc_session::Session) -> types::Target { } } -impl<'tcx> FormatRenderer<'tcx> for JsonRenderer<'tcx> { - fn descr() -> &'static str { - "json" - } - - const RUN_ON_MODULE: bool = false; - type ModuleData = (); - - fn init( +impl<'tcx> JsonRenderer<'tcx> { + pub(crate) fn init( krate: clean::Crate, options: RenderOptions, cache: Cache, @@ -205,6 +198,15 @@ impl<'tcx> FormatRenderer<'tcx> for JsonRenderer<'tcx> { krate, )) } +} + +impl<'tcx> FormatRenderer<'tcx> for JsonRenderer<'tcx> { + fn descr() -> &'static str { + "json" + } + + const RUN_ON_MODULE: bool = false; + type ModuleData = (); fn save_module_data(&mut self) -> Self::ModuleData { unreachable!("RUN_ON_MODULE = false, should never call save_module_data") diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs index 28dbd8ba7d3..e2682045ab4 100644 --- a/src/librustdoc/lib.rs +++ b/src/librustdoc/lib.rs @@ -11,6 +11,7 @@ #![feature(file_buffered)] #![feature(format_args_nl)] #![feature(if_let_guard)] +#![feature(iter_advance_by)] #![feature(iter_intersperse)] #![feature(round_char_boundary)] #![feature(rustc_private)] @@ -80,6 +81,8 @@ use rustc_session::{EarlyDiagCtxt, getopts}; use tracing::info; use crate::clean::utils::DOC_RUST_LANG_ORG_VERSION; +use crate::error::Error; +use crate::formats::cache::Cache; /// A macro to create a FxHashMap. /// @@ -663,6 +666,14 @@ fn opts() -> Vec<RustcOptGroup> { "disable the minification of CSS/JS files (perma-unstable, do not use with cached files)", "", ), + opt( + Unstable, + Flag, + "", + "generate-macro-expansion", + "Add possibility to expand macros in the HTML source code pages", + "", + ), // deprecated / removed options opt( Stable, @@ -726,13 +737,23 @@ pub(crate) fn wrap_return(dcx: DiagCtxtHandle<'_>, res: Result<(), String>) { } } -fn run_renderer<'tcx, T: formats::FormatRenderer<'tcx>>( +fn run_renderer< + 'tcx, + T: formats::FormatRenderer<'tcx>, + F: FnOnce( + clean::Crate, + config::RenderOptions, + Cache, + TyCtxt<'tcx>, + ) -> Result<(T, clean::Crate), Error>, +>( krate: clean::Crate, renderopts: config::RenderOptions, cache: formats::cache::Cache, tcx: TyCtxt<'tcx>, + init: F, ) { - match formats::run_format::<T>(krate, renderopts, cache, tcx) { + match formats::run_format::<T, F>(krate, renderopts, cache, tcx, init) { Ok(_) => tcx.dcx().abort_if_errors(), Err(e) => { let mut msg = @@ -862,6 +883,7 @@ fn main_args(early_dcx: &mut EarlyDiagCtxt, at_args: &[String]) { let scrape_examples_options = options.scrape_examples_options.clone(); let bin_crate = options.bin_crate; + let output_format = options.output_format; let config = core::create_config(input, options, &render_options); let registered_lints = config.register_lints.is_some(); @@ -886,9 +908,10 @@ fn main_args(early_dcx: &mut EarlyDiagCtxt, at_args: &[String]) { sess.dcx().fatal("Compilation failed, aborting rustdoc"); } - let (krate, render_opts, mut cache) = sess.time("run_global_ctxt", || { - core::run_global_ctxt(tcx, show_coverage, render_options, output_format) - }); + let (krate, render_opts, mut cache, expanded_macros) = sess + .time("run_global_ctxt", || { + core::run_global_ctxt(tcx, show_coverage, render_options, output_format) + }); info!("finished with rustc"); if let Some(options) = scrape_examples_options { @@ -919,10 +942,24 @@ fn main_args(early_dcx: &mut EarlyDiagCtxt, at_args: &[String]) { info!("going to format"); match output_format { config::OutputFormat::Html => sess.time("render_html", || { - run_renderer::<html::render::Context<'_>>(krate, render_opts, cache, tcx) + run_renderer( + krate, + render_opts, + cache, + tcx, + |krate, render_opts, cache, tcx| { + html::render::Context::init( + krate, + render_opts, + cache, + tcx, + expanded_macros, + ) + }, + ) }), config::OutputFormat::Json => sess.time("render_json", || { - run_renderer::<json::JsonRenderer<'_>>(krate, render_opts, cache, tcx) + run_renderer(krate, render_opts, cache, tcx, json::JsonRenderer::init) }), // Already handled above with doctest runners. config::OutputFormat::Doctest => unreachable!(), diff --git a/src/librustdoc/passes/lint/html_tags.rs b/src/librustdoc/passes/lint/html_tags.rs index 19cf15d40a3..da09117b1bb 100644 --- a/src/librustdoc/passes/lint/html_tags.rs +++ b/src/librustdoc/passes/lint/html_tags.rs @@ -1,9 +1,11 @@ //! Detects invalid HTML (like an unclosed `<span>`) in doc comments. +use std::borrow::Cow; use std::iter::Peekable; use std::ops::Range; use std::str::CharIndices; +use itertools::Itertools as _; use pulldown_cmark::{BrokenLink, Event, LinkType, Parser, Tag, TagEnd}; use rustc_hir::HirId; use rustc_resolve::rustdoc::source_span_for_markdown_range; @@ -101,7 +103,7 @@ pub(crate) fn visit_item(cx: &DocContext<'_>, item: &Item, hir_id: HirId, dox: & }); }; - let mut tags = Vec::new(); + let mut tagp = TagParser::new(); let mut is_in_comment = None; let mut in_code_block = false; @@ -126,70 +128,65 @@ pub(crate) fn visit_item(cx: &DocContext<'_>, item: &Item, hir_id: HirId, dox: & }; let p = Parser::new_with_broken_link_callback(dox, main_body_opts(), Some(&mut replacer)) - .into_offset_iter(); + .into_offset_iter() + .coalesce(|a, b| { + // for some reason, pulldown-cmark splits html blocks into separate events for each line. + // we undo this, in order to handle multi-line tags. + match (a, b) { + ((Event::Html(_), ra), (Event::Html(_), rb)) if ra.end == rb.start => { + let merged = ra.start..rb.end; + Ok((Event::Html(Cow::Borrowed(&dox[merged.clone()]).into()), merged)) + } + x => Err(x), + } + }); for (event, range) in p { match event { Event::Start(Tag::CodeBlock(_)) => in_code_block = true, Event::Html(text) | Event::InlineHtml(text) if !in_code_block => { - extract_tags(&mut tags, &text, range, &mut is_in_comment, &report_diag) + tagp.extract_tags(&text, range, &mut is_in_comment, &report_diag) } Event::End(TagEnd::CodeBlock) => in_code_block = false, _ => {} } } - for (tag, range) in tags.iter().filter(|(t, _)| { - let t = t.to_lowercase(); - !ALLOWED_UNCLOSED.contains(&t.as_str()) - }) { - report_diag(format!("unclosed HTML tag `{tag}`"), range, true); - } - if let Some(range) = is_in_comment { report_diag("Unclosed HTML comment".to_string(), &range, false); + } else if let &Some(quote_pos) = &tagp.quote_pos { + let qr = Range { start: quote_pos, end: quote_pos }; + report_diag( + format!("unclosed quoted HTML attribute on tag `{}`", &tagp.tag_name), + &qr, + false, + ); + } else { + if !tagp.tag_name.is_empty() { + report_diag( + format!("incomplete HTML tag `{}`", &tagp.tag_name), + &(tagp.tag_start_pos..dox.len()), + false, + ); + } + for (tag, range) in tagp.tags.iter().filter(|(t, _)| { + let t = t.to_lowercase(); + !is_implicitly_self_closing(&t) + }) { + report_diag(format!("unclosed HTML tag `{tag}`"), range, true); + } } } +/// These tags are interpreted as self-closing if they lack an explicit closing tag. const ALLOWED_UNCLOSED: &[&str] = &[ "area", "base", "br", "col", "embed", "hr", "img", "input", "keygen", "link", "meta", "param", "source", "track", "wbr", ]; -fn drop_tag( - tags: &mut Vec<(String, Range<usize>)>, - tag_name: String, - range: Range<usize>, - f: &impl Fn(String, &Range<usize>, bool), -) { - let tag_name_low = tag_name.to_lowercase(); - if let Some(pos) = tags.iter().rposition(|(t, _)| t.to_lowercase() == tag_name_low) { - // If the tag is nested inside a "<script>" or a "<style>" tag, no warning should - // be emitted. - let should_not_warn = tags.iter().take(pos + 1).any(|(at, _)| { - let at = at.to_lowercase(); - at == "script" || at == "style" - }); - for (last_tag_name, last_tag_span) in tags.drain(pos + 1..) { - if should_not_warn { - continue; - } - let last_tag_name_low = last_tag_name.to_lowercase(); - if ALLOWED_UNCLOSED.contains(&last_tag_name_low.as_str()) { - continue; - } - // `tags` is used as a queue, meaning that everything after `pos` is included inside it. - // So `<h2><h3></h2>` will look like `["h2", "h3"]`. So when closing `h2`, we will still - // have `h3`, meaning the tag wasn't closed as it should have. - f(format!("unclosed HTML tag `{last_tag_name}`"), &last_tag_span, true); - } - // Remove the `tag_name` that was originally closed - tags.pop(); - } else { - // It can happen for example in this case: `<h2></script></h2>` (the `h2` tag isn't required - // but it helps for the visualization). - f(format!("unopened HTML tag `{tag_name}`"), &range, false); - } +/// Allows constructs like `<img>`, but not `<img`. +fn is_implicitly_self_closing(tag_name: &str) -> bool { + ALLOWED_UNCLOSED.contains(&tag_name) } fn extract_path_backwards(text: &str, end_pos: usize) -> Option<usize> { @@ -252,151 +249,292 @@ fn is_valid_for_html_tag_name(c: char, is_empty: bool) -> bool { c.is_ascii_alphabetic() || !is_empty && (c == '-' || c.is_ascii_digit()) } -fn extract_html_tag( - tags: &mut Vec<(String, Range<usize>)>, - text: &str, - range: &Range<usize>, - start_pos: usize, - iter: &mut Peekable<CharIndices<'_>>, - f: &impl Fn(String, &Range<usize>, bool), -) { - let mut tag_name = String::new(); - let mut is_closing = false; - let mut prev_pos = start_pos; +/// Parse html tags to ensure they are well-formed +#[derive(Debug, Clone)] +struct TagParser { + tags: Vec<(String, Range<usize>)>, + /// Name of the tag that is being parsed, if we are within a tag. + /// + /// Since the `<` and name of a tag must appear on the same line with no whitespace, + /// if this is the empty string, we are not in a tag. + tag_name: String, + tag_start_pos: usize, + is_closing: bool, + /// `true` if we are within a tag, but not within its name. + in_attrs: bool, + /// If we are in a quoted attribute, what quote char does it use? + /// + /// This needs to be stored in the struct since HTML5 allows newlines in quoted attrs. + quote: Option<char>, + quote_pos: Option<usize>, + after_eq: bool, +} - loop { - let (pos, c) = match iter.peek() { - Some((pos, c)) => (*pos, *c), - // In case we reached the of the doc comment, we want to check that it's an - // unclosed HTML tag. For example "/// <h3". - None => (prev_pos, '\0'), - }; - prev_pos = pos; - // Checking if this is a closing tag (like `</a>` for `<a>`). - if c == '/' && tag_name.is_empty() { - is_closing = true; - } else if is_valid_for_html_tag_name(c, tag_name.is_empty()) { - tag_name.push(c); - } else { - if !tag_name.is_empty() { - let mut r = Range { start: range.start + start_pos, end: range.start + pos }; - if c == '>' { - // In case we have a tag without attribute, we can consider the span to - // refer to it fully. - r.end += 1; +impl TagParser { + fn new() -> Self { + Self { + tags: Vec::new(), + tag_name: String::with_capacity(8), + tag_start_pos: 0, + is_closing: false, + in_attrs: false, + quote: None, + quote_pos: None, + after_eq: false, + } + } + + fn drop_tag(&mut self, range: Range<usize>, f: &impl Fn(String, &Range<usize>, bool)) { + let tag_name_low = self.tag_name.to_lowercase(); + if let Some(pos) = self.tags.iter().rposition(|(t, _)| t.to_lowercase() == tag_name_low) { + // If the tag is nested inside a "<script>" or a "<style>" tag, no warning should + // be emitted. + let should_not_warn = self.tags.iter().take(pos + 1).any(|(at, _)| { + let at = at.to_lowercase(); + at == "script" || at == "style" + }); + for (last_tag_name, last_tag_span) in self.tags.drain(pos + 1..) { + if should_not_warn { + continue; } - if is_closing { - // In case we have "</div >" or even "</div >". - if c != '>' { - if !c.is_whitespace() { - // It seems like it's not a valid HTML tag. - break; - } - let mut found = false; - for (new_pos, c) in text[pos..].char_indices() { + let last_tag_name_low = last_tag_name.to_lowercase(); + if is_implicitly_self_closing(&last_tag_name_low) { + continue; + } + // `tags` is used as a queue, meaning that everything after `pos` is included inside it. + // So `<h2><h3></h2>` will look like `["h2", "h3"]`. So when closing `h2`, we will still + // have `h3`, meaning the tag wasn't closed as it should have. + f(format!("unclosed HTML tag `{last_tag_name}`"), &last_tag_span, true); + } + // Remove the `tag_name` that was originally closed + self.tags.pop(); + } else { + // It can happen for example in this case: `<h2></script></h2>` (the `h2` tag isn't required + // but it helps for the visualization). + f(format!("unopened HTML tag `{}`", &self.tag_name), &range, false); + } + } + + /// Handle a `<` that appeared while parsing a tag. + fn handle_lt_in_tag( + &mut self, + range: Range<usize>, + lt_pos: usize, + f: &impl Fn(String, &Range<usize>, bool), + ) { + let global_pos = range.start + lt_pos; + // is this check needed? + if global_pos == self.tag_start_pos { + // `<` is in the tag because it is the start. + return; + } + // tried to start a new tag while in a tag + f( + format!("incomplete HTML tag `{}`", &self.tag_name), + &(self.tag_start_pos..global_pos), + false, + ); + self.tag_parsed(); + } + + fn extract_html_tag( + &mut self, + text: &str, + range: &Range<usize>, + start_pos: usize, + iter: &mut Peekable<CharIndices<'_>>, + f: &impl Fn(String, &Range<usize>, bool), + ) { + let mut prev_pos = start_pos; + + 'outer_loop: loop { + let (pos, c) = match iter.peek() { + Some((pos, c)) => (*pos, *c), + // In case we reached the of the doc comment, we want to check that it's an + // unclosed HTML tag. For example "/// <h3". + None if self.tag_name.is_empty() => (prev_pos, '\0'), + None => break, + }; + prev_pos = pos; + if c == '/' && self.tag_name.is_empty() { + // Checking if this is a closing tag (like `</a>` for `<a>`). + self.is_closing = true; + } else if !self.in_attrs && is_valid_for_html_tag_name(c, self.tag_name.is_empty()) { + self.tag_name.push(c); + } else { + if !self.tag_name.is_empty() { + self.in_attrs = true; + let mut r = Range { start: range.start + start_pos, end: range.start + pos }; + if c == '>' { + // In case we have a tag without attribute, we can consider the span to + // refer to it fully. + r.end += 1; + } + if self.is_closing { + // In case we have "</div >" or even "</div >". + if c != '>' { if !c.is_whitespace() { - if c == '>' { - r.end = range.start + new_pos + 1; - found = true; - } + // It seems like it's not a valid HTML tag. break; } - } - if !found { - break; - } - } - drop_tag(tags, tag_name, r, f); - } else { - let mut is_self_closing = false; - let mut quote_pos = None; - if c != '>' { - let mut quote = None; - let mut after_eq = false; - for (i, c) in text[pos..].char_indices() { - if !c.is_whitespace() { - if let Some(q) = quote { - if c == q { - quote = None; - quote_pos = None; - after_eq = false; + let mut found = false; + for (new_pos, c) in text[pos..].char_indices() { + if !c.is_whitespace() { + if c == '>' { + r.end = range.start + new_pos + 1; + found = true; + } else if c == '<' { + self.handle_lt_in_tag(range.clone(), pos + new_pos, f); } - } else if c == '>' { break; - } else if c == '/' && !after_eq { - is_self_closing = true; - } else { - if is_self_closing { - is_self_closing = false; - } - if (c == '"' || c == '\'') && after_eq { - quote = Some(c); - quote_pos = Some(pos + i); - } else if c == '=' { - after_eq = true; - } } - } else if quote.is_none() { - after_eq = false; + } + if !found { + break 'outer_loop; } } - } - if let Some(quote_pos) = quote_pos { - let qr = Range { start: quote_pos, end: quote_pos }; - f( - format!("unclosed quoted HTML attribute on tag `{tag_name}`"), - &qr, - false, - ); - } - if is_self_closing { - // https://html.spec.whatwg.org/#parse-error-non-void-html-element-start-tag-with-trailing-solidus - let valid = ALLOWED_UNCLOSED.contains(&&tag_name[..]) - || tags.iter().take(pos + 1).any(|(at, _)| { - let at = at.to_lowercase(); - at == "svg" || at == "math" - }); - if !valid { - f(format!("invalid self-closing HTML tag `{tag_name}`"), &r, false); - } + self.drop_tag(r, f); + self.tag_parsed(); } else { - tags.push((tag_name, r)); + self.extract_opening_tag(text, range, r, pos, c, iter, f) } } + break; } - break; + iter.next(); } - iter.next(); } -} - -fn extract_tags( - tags: &mut Vec<(String, Range<usize>)>, - text: &str, - range: Range<usize>, - is_in_comment: &mut Option<Range<usize>>, - f: &impl Fn(String, &Range<usize>, bool), -) { - let mut iter = text.char_indices().peekable(); - while let Some((start_pos, c)) = iter.next() { - if is_in_comment.is_some() { - if text[start_pos..].starts_with("-->") { - *is_in_comment = None; + fn extract_opening_tag( + &mut self, + text: &str, + range: &Range<usize>, + r: Range<usize>, + pos: usize, + c: char, + iter: &mut Peekable<CharIndices<'_>>, + f: &impl Fn(String, &Range<usize>, bool), + ) { + // we can store this as a local, since html5 does require the `/` and `>` + // to not be separated by whitespace. + let mut is_self_closing = false; + if c != '>' { + 'parse_til_gt: { + for (i, c) in text[pos..].char_indices() { + if !c.is_whitespace() { + debug_assert_eq!(self.quote_pos.is_some(), self.quote.is_some()); + if let Some(q) = self.quote { + if c == q { + self.quote = None; + self.quote_pos = None; + self.after_eq = false; + } + } else if c == '>' { + break 'parse_til_gt; + } else if c == '<' { + self.handle_lt_in_tag(range.clone(), pos + i, f); + } else if c == '/' && !self.after_eq { + is_self_closing = true; + } else { + if is_self_closing { + is_self_closing = false; + } + if (c == '"' || c == '\'') && self.after_eq { + self.quote = Some(c); + self.quote_pos = Some(pos + i); + } else if c == '=' { + self.after_eq = true; + } + } + } else if self.quote.is_none() { + self.after_eq = false; + } + if !is_self_closing && !self.tag_name.is_empty() { + iter.next(); + } + } + // if we've run out of text but still haven't found a `>`, + // return early without calling `tag_parsed` or emitting lints. + // this allows us to either find the `>` in a later event + // or emit a lint about it being missing. + return; } - } else if c == '<' { - if text[start_pos..].starts_with("<!--") { - // We skip the "!--" part. (Once `advance_by` is stable, might be nice to use it!) - iter.next(); - iter.next(); - iter.next(); - *is_in_comment = Some(Range { - start: range.start + start_pos, - end: range.start + start_pos + 3, + } + if is_self_closing { + // https://html.spec.whatwg.org/#parse-error-non-void-html-element-start-tag-with-trailing-solidus + let valid = ALLOWED_UNCLOSED.contains(&&self.tag_name[..]) + || self.tags.iter().take(pos + 1).any(|(at, _)| { + let at = at.to_lowercase(); + at == "svg" || at == "math" }); - } else { - extract_html_tag(tags, text, &range, start_pos, &mut iter, f); + if !valid { + f(format!("invalid self-closing HTML tag `{}`", self.tag_name), &r, false); + } + } else if !self.tag_name.is_empty() { + self.tags.push((std::mem::take(&mut self.tag_name), r)); + } + self.tag_parsed(); + } + /// Finished parsing a tag, reset related data. + fn tag_parsed(&mut self) { + self.tag_name.clear(); + self.is_closing = false; + self.in_attrs = false; + } + + fn extract_tags( + &mut self, + text: &str, + range: Range<usize>, + is_in_comment: &mut Option<Range<usize>>, + f: &impl Fn(String, &Range<usize>, bool), + ) { + let mut iter = text.char_indices().peekable(); + let mut prev_pos = 0; + loop { + if self.quote.is_some() { + debug_assert!(self.in_attrs && self.quote_pos.is_some()); + } + if self.in_attrs + && let Some(&(start_pos, _)) = iter.peek() + { + self.extract_html_tag(text, &range, start_pos, &mut iter, f); + // if no progress is being made, move forward forcefully. + if prev_pos == start_pos { + iter.next(); + } + prev_pos = start_pos; + continue; + } + let Some((start_pos, c)) = iter.next() else { break }; + if is_in_comment.is_some() { + if text[start_pos..].starts_with("-->") { + *is_in_comment = None; + } + } else if c == '<' { + // "<!--" is a valid attribute name under html5, so don't treat it as a comment if we're in a tag. + if self.tag_name.is_empty() && text[start_pos..].starts_with("<!--") { + // We skip the "!--" part. (Once `advance_by` is stable, might be nice to use it!) + iter.next(); + iter.next(); + iter.next(); + *is_in_comment = Some(Range { + start: range.start + start_pos, + end: range.start + start_pos + 4, + }); + } else { + if self.tag_name.is_empty() { + self.tag_start_pos = range.start + start_pos; + } + self.extract_html_tag(text, &range, start_pos, &mut iter, f); + } + } else if !self.tag_name.is_empty() { + // partially inside html tag that spans across events + self.extract_html_tag(text, &range, start_pos, &mut iter, f); } } } } + +#[cfg(test)] +mod tests; diff --git a/src/librustdoc/passes/lint/html_tags/tests.rs b/src/librustdoc/passes/lint/html_tags/tests.rs new file mode 100644 index 00000000000..81c1d21a55d --- /dev/null +++ b/src/librustdoc/passes/lint/html_tags/tests.rs @@ -0,0 +1,73 @@ +use std::cell::RefCell; + +use super::*; + +#[test] +fn test_extract_tags_nested_unclosed() { + let mut tagp = TagParser::new(); + let diags = RefCell::new(Vec::new()); + let dox = "<div>\n<br</div>"; + tagp.extract_tags(dox, 0..dox.len(), &mut None, &|s, r, b| { + diags.borrow_mut().push((s, r.clone(), b)); + }); + assert_eq!(diags.borrow().len(), 1, "did not get expected diagnostics: {diags:?}"); + assert_eq!(diags.borrow()[0].1, 6..9) +} + +#[test] +fn test_extract_tags_taglike_in_attr() { + let mut tagp = TagParser::new(); + let diags = RefCell::new(Vec::new()); + let dox = "<img src='<div>'>"; + tagp.extract_tags(dox, 0..dox.len(), &mut None, &|s, r, b| { + diags.borrow_mut().push((s, r.clone(), b)); + }); + assert_eq!(diags.borrow().len(), 0, "unexpected diagnostics: {diags:?}"); +} + +#[test] +fn test_extract_tags_taglike_in_multiline_attr() { + let mut tagp = TagParser::new(); + let diags = RefCell::new(Vec::new()); + let dox = "<img src=\"\nasd\n<div>\n\">"; + tagp.extract_tags(dox, 0..dox.len(), &mut None, &|s, r, b| { + diags.borrow_mut().push((s, r.clone(), b)); + }); + assert_eq!(diags.borrow().len(), 0, "unexpected diagnostics: {diags:?}"); +} + +#[test] +fn test_extract_tags_taglike_in_multievent_attr() { + let mut tagp = TagParser::new(); + let diags = RefCell::new(Vec::new()); + let dox = "<img src='<div>'>"; + let split_point = 10; + let mut p = |range: Range<usize>| { + tagp.extract_tags(&dox[range.clone()], range, &mut None, &|s, r, b| { + diags.borrow_mut().push((s, r.clone(), b)); + }) + }; + p(0..split_point); + p(split_point..dox.len()); + assert_eq!(diags.borrow().len(), 0, "unexpected diagnostics: {diags:?}"); +} + +#[test] +fn test_extract_tags_taglike_in_multiline_multievent_attr() { + let mut tagp = TagParser::new(); + let diags = RefCell::new(Vec::new()); + let dox = "<img src='\n foo:\n </div>\n <p/>\n <div>\n'>"; + let mut p = |range: Range<usize>| { + tagp.extract_tags(&dox[range.clone()], range, &mut None, &|s, r, b| { + diags.borrow_mut().push((s, r.clone(), b)); + }) + }; + let mut offset = 0; + for ln in dox.split_inclusive('\n') { + let new_offset = offset + ln.len(); + p(offset..new_offset); + offset = new_offset; + } + assert_eq!(diags.borrow().len(), 0, "unexpected diagnostics: {diags:?}"); + assert_eq!(tagp.tags.len(), 1); +} diff --git a/src/librustdoc/scrape_examples.rs b/src/librustdoc/scrape_examples.rs index 9f71d6ae789..16034c11827 100644 --- a/src/librustdoc/scrape_examples.rs +++ b/src/librustdoc/scrape_examples.rs @@ -18,7 +18,6 @@ use rustc_span::edition::Edition; use rustc_span::{BytePos, FileName, SourceFile}; use tracing::{debug, trace, warn}; -use crate::formats::renderer::FormatRenderer; use crate::html::render::Context; use crate::{clean, config, formats}; @@ -276,7 +275,8 @@ pub(crate) fn run( let inner = move || -> Result<(), String> { // Generates source files for examples renderopts.no_emit_shared = true; - let (cx, _) = Context::init(krate, renderopts, cache, tcx).map_err(|e| e.to_string())?; + let (cx, _) = Context::init(krate, renderopts, cache, tcx, Default::default()) + .map_err(|e| e.to_string())?; // Collect CrateIds corresponding to provided target crates // If two different versions of the crate in the dependency tree, then examples will be diff --git a/src/tools/build-manifest/Cargo.toml b/src/tools/build-manifest/Cargo.toml index 7e0c4bee2b3..efa99f181b3 100644 --- a/src/tools/build-manifest/Cargo.toml +++ b/src/tools/build-manifest/Cargo.toml @@ -4,7 +4,7 @@ version = "0.1.0" edition = "2021" [dependencies] -toml = "0.5" +toml = "0.7" serde = { version = "1.0", features = ["derive"] } serde_json = "1.0" anyhow = "1.0.32" diff --git a/src/tools/build-manifest/src/main.rs b/src/tools/build-manifest/src/main.rs index 0520eff0fa2..8f88ab10bf7 100644 --- a/src/tools/build-manifest/src/main.rs +++ b/src/tools/build-manifest/src/main.rs @@ -205,7 +205,7 @@ static TARGETS: &[&str] = &[ /// /// The order here matters, more specific entries should be first. static DOCS_FALLBACK: &[(&str, &str)] = &[ - ("-apple-", "x86_64-apple-darwin"), + ("-apple-", "aarch64-apple-darwin"), ("aarch64", "aarch64-unknown-linux-gnu"), ("arm-", "aarch64-unknown-linux-gnu"), ("", "x86_64-unknown-linux-gnu"), diff --git a/src/tools/bump-stage0/Cargo.toml b/src/tools/bump-stage0/Cargo.toml index 6ee7a831839..b7f3625da91 100644 --- a/src/tools/bump-stage0/Cargo.toml +++ b/src/tools/bump-stage0/Cargo.toml @@ -11,4 +11,4 @@ build_helper = { path = "../../build_helper" } curl = "0.4.38" indexmap = { version = "2.0.0", features = ["serde"] } serde = { version = "1.0.125", features = ["derive"] } -toml = "0.5.7" +toml = "0.7" diff --git a/src/tools/cargo b/src/tools/cargo -Subproject 71eb84f21aef43c07580c6aed6f806a6299f504 +Subproject 623d536836b4cde09ce38609232a024d5b25da8 diff --git a/src/tools/clippy/.github/workflows/clippy_dev.yml b/src/tools/clippy/.github/workflows/clippy_dev.yml index d6534fbaff9..d530eb6c73a 100644 --- a/src/tools/clippy/.github/workflows/clippy_dev.yml +++ b/src/tools/clippy/.github/workflows/clippy_dev.yml @@ -16,7 +16,7 @@ jobs: steps: # Setup - name: Checkout - uses: actions/checkout@v4 + uses: actions/checkout@v5 with: # Unsetting this would make so that any malicious package could get our Github Token persist-credentials: false diff --git a/src/tools/clippy/.github/workflows/clippy_mq.yml b/src/tools/clippy/.github/workflows/clippy_mq.yml index 07d5a08304e..0bcb7135935 100644 --- a/src/tools/clippy/.github/workflows/clippy_mq.yml +++ b/src/tools/clippy/.github/workflows/clippy_mq.yml @@ -36,7 +36,7 @@ jobs: steps: # Setup - name: Checkout - uses: actions/checkout@v4 + uses: actions/checkout@v5 with: persist-credentials: false @@ -96,7 +96,7 @@ jobs: steps: # Setup - name: Checkout - uses: actions/checkout@v4 + uses: actions/checkout@v5 with: persist-credentials: false @@ -114,7 +114,7 @@ jobs: steps: # Setup - name: Checkout - uses: actions/checkout@v4 + uses: actions/checkout@v5 with: persist-credentials: false @@ -170,7 +170,7 @@ jobs: steps: # Setup - name: Checkout - uses: actions/checkout@v4 + uses: actions/checkout@v5 with: persist-credentials: false diff --git a/src/tools/clippy/.github/workflows/clippy_pr.yml b/src/tools/clippy/.github/workflows/clippy_pr.yml index 880ebd6e5d5..d91c638a8fb 100644 --- a/src/tools/clippy/.github/workflows/clippy_pr.yml +++ b/src/tools/clippy/.github/workflows/clippy_pr.yml @@ -24,7 +24,7 @@ jobs: steps: # Setup - name: Checkout - uses: actions/checkout@v4 + uses: actions/checkout@v5 with: # Unsetting this would make so that any malicious package could get our Github Token persist-credentials: false diff --git a/src/tools/clippy/.github/workflows/deploy.yml b/src/tools/clippy/.github/workflows/deploy.yml index ede19c11257..48c5bd36dbc 100644 --- a/src/tools/clippy/.github/workflows/deploy.yml +++ b/src/tools/clippy/.github/workflows/deploy.yml @@ -25,13 +25,13 @@ jobs: steps: # Setup - name: Checkout - uses: actions/checkout@v4 + uses: actions/checkout@v5 with: # Unsetting this would make so that any malicious package could get our Github Token persist-credentials: false - name: Checkout - uses: actions/checkout@v4 + uses: actions/checkout@v5 with: ref: ${{ env.TARGET_BRANCH }} path: 'out' diff --git a/src/tools/clippy/.github/workflows/feature_freeze.yml b/src/tools/clippy/.github/workflows/feature_freeze.yml index ec59be3e7f6..5b139e76700 100644 --- a/src/tools/clippy/.github/workflows/feature_freeze.yml +++ b/src/tools/clippy/.github/workflows/feature_freeze.yml @@ -16,7 +16,7 @@ jobs: permissions: pull-requests: write - # Do not in any case add code that runs anything coming from the the content + # Do not in any case add code that runs anything coming from the content # of the pull request, as malicious code would be able to access the private # GitHub token. steps: diff --git a/src/tools/clippy/.github/workflows/lintcheck.yml b/src/tools/clippy/.github/workflows/lintcheck.yml index 003d0395739..390d6a0f747 100644 --- a/src/tools/clippy/.github/workflows/lintcheck.yml +++ b/src/tools/clippy/.github/workflows/lintcheck.yml @@ -24,7 +24,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v4 + uses: actions/checkout@v5 with: fetch-depth: 2 # Unsetting this would make so that any malicious package could get our Github Token @@ -80,7 +80,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v4 + uses: actions/checkout@v5 with: # Unsetting this would make so that any malicious package could get our Github Token persist-credentials: false @@ -113,7 +113,7 @@ jobs: steps: - name: Checkout - uses: actions/checkout@v4 + uses: actions/checkout@v5 with: # Unsetting this would make so that any malicious package could get our Github Token persist-credentials: false diff --git a/src/tools/clippy/.github/workflows/remark.yml b/src/tools/clippy/.github/workflows/remark.yml index 7e7e26818c0..c9d350ee0b3 100644 --- a/src/tools/clippy/.github/workflows/remark.yml +++ b/src/tools/clippy/.github/workflows/remark.yml @@ -11,7 +11,7 @@ jobs: steps: # Setup - name: Checkout - uses: actions/checkout@v4 + uses: actions/checkout@v5 with: # Unsetting this would make so that any malicious package could get our Github Token persist-credentials: false diff --git a/src/tools/clippy/CONTRIBUTING.md b/src/tools/clippy/CONTRIBUTING.md index 42ed624ec21..f7f0a1ce249 100644 --- a/src/tools/clippy/CONTRIBUTING.md +++ b/src/tools/clippy/CONTRIBUTING.md @@ -17,7 +17,7 @@ All contributors are expected to follow the [Rust Code of Conduct]. - [High level approach](#high-level-approach) - [Finding something to fix/improve](#finding-something-to-fiximprove) - [Getting code-completion for rustc internals to work](#getting-code-completion-for-rustc-internals-to-work) - - [IntelliJ Rust](#intellij-rust) + - [RustRover](#rustrover) - [Rust Analyzer](#rust-analyzer) - [How Clippy works](#how-clippy-works) - [Issue and PR triage](#issue-and-pr-triage) @@ -92,22 +92,22 @@ an AST expression). ## Getting code-completion for rustc internals to work -### IntelliJ Rust -Unfortunately, [`IntelliJ Rust`][IntelliJ_rust_homepage] does not (yet?) understand how Clippy uses compiler-internals +### RustRover +Unfortunately, [`RustRover`][RustRover_homepage] does not (yet?) understand how Clippy uses compiler-internals using `extern crate` and it also needs to be able to read the source files of the rustc-compiler which are not available via a `rustup` component at the time of writing. To work around this, you need to have a copy of the [rustc-repo][rustc_repo] available which can be obtained via `git clone https://github.com/rust-lang/rust/`. Then you can run a `cargo dev` command to automatically make Clippy use the rustc-repo via path-dependencies -which `IntelliJ Rust` will be able to understand. +which `RustRover` will be able to understand. Run `cargo dev setup intellij --repo-path <repo-path>` where `<repo-path>` is a path to the rustc repo you just cloned. The command will add path-dependencies pointing towards rustc-crates inside the rustc repo to -Clippy's `Cargo.toml`s and should allow `IntelliJ Rust` to understand most of the types that Clippy uses. +Clippy's `Cargo.toml`s and should allow `RustRover` to understand most of the types that Clippy uses. Just make sure to remove the dependencies again before finally making a pull request! [rustc_repo]: https://github.com/rust-lang/rust/ -[IntelliJ_rust_homepage]: https://intellij-rust.github.io/ +[RustRover_homepage]: https://www.jetbrains.com/rust/ ### Rust Analyzer For [`rust-analyzer`][ra_homepage] to work correctly make sure that in the `rust-analyzer` configuration you set diff --git a/src/tools/clippy/Cargo.toml b/src/tools/clippy/Cargo.toml index daf1c98cdc9..b3618932ded 100644 --- a/src/tools/clippy/Cargo.toml +++ b/src/tools/clippy/Cargo.toml @@ -64,3 +64,7 @@ harness = false [[test]] name = "dogfood" harness = false + +[lints.rust.unexpected_cfgs] +level = "warn" +check-cfg = ['cfg(bootstrap)'] diff --git a/src/tools/clippy/book/src/continuous_integration/github_actions.md b/src/tools/clippy/book/src/continuous_integration/github_actions.md index b588c8f0f02..62d32446d92 100644 --- a/src/tools/clippy/book/src/continuous_integration/github_actions.md +++ b/src/tools/clippy/book/src/continuous_integration/github_actions.md @@ -15,7 +15,7 @@ jobs: clippy_check: runs-on: ubuntu-latest steps: - - uses: actions/checkout@v4 + - uses: actions/checkout@v5 - name: Run Clippy run: cargo clippy --all-targets --all-features ``` diff --git a/src/tools/clippy/book/src/development/basics.md b/src/tools/clippy/book/src/development/basics.md index fc405249bcf..19f626ab804 100644 --- a/src/tools/clippy/book/src/development/basics.md +++ b/src/tools/clippy/book/src/development/basics.md @@ -95,7 +95,7 @@ cargo dev new_lint cargo dev deprecate # automatically formatting all code before each commit cargo dev setup git-hook -# (experimental) Setup Clippy to work with IntelliJ-Rust +# (experimental) Setup Clippy to work with RustRover cargo dev setup intellij # runs the `dogfood` tests cargo dev dogfood @@ -103,7 +103,7 @@ cargo dev dogfood More about [intellij] command usage and reasons. -[intellij]: https://github.com/rust-lang/rust-clippy/blob/master/CONTRIBUTING.md#intellij-rust +[intellij]: https://github.com/rust-lang/rust-clippy/blob/master/CONTRIBUTING.md#rustrover ## lintcheck diff --git a/src/tools/clippy/book/src/development/common_tools_writing_lints.md b/src/tools/clippy/book/src/development/common_tools_writing_lints.md index e23b32039c9..3bec3ce33af 100644 --- a/src/tools/clippy/book/src/development/common_tools_writing_lints.md +++ b/src/tools/clippy/book/src/development/common_tools_writing_lints.md @@ -141,7 +141,7 @@ impl LateLintPass<'_> for MyStructLint { // we are looking for the `DefId` of `Drop` trait in lang items .drop_trait() // then we use it with our type `ty` by calling `implements_trait` from Clippy's utils - .map_or(false, |id| implements_trait(cx, ty, id, &[])) { + .is_some_and(|id| implements_trait(cx, ty, id, &[])) { // `expr` implements `Drop` trait } } diff --git a/src/tools/clippy/book/src/lint_configuration.md b/src/tools/clippy/book/src/lint_configuration.md index 7f16f3a9810..05590ff7b1c 100644 --- a/src/tools/clippy/book/src/lint_configuration.md +++ b/src/tools/clippy/book/src/lint_configuration.md @@ -555,7 +555,7 @@ default configuration of Clippy. By default, any configuration will replace the * `doc-valid-idents = ["ClipPy"]` would replace the default list with `["ClipPy"]`. * `doc-valid-idents = ["ClipPy", ".."]` would append `ClipPy` to the default list. -**Default Value:** `["KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "MHz", "GHz", "THz", "AccessKit", "CoAP", "CoreFoundation", "CoreGraphics", "CoreText", "DevOps", "Direct2D", "Direct3D", "DirectWrite", "DirectX", "ECMAScript", "GPLv2", "GPLv3", "GitHub", "GitLab", "IPv4", "IPv6", "ClojureScript", "CoffeeScript", "JavaScript", "PostScript", "PureScript", "TypeScript", "WebAssembly", "NaN", "NaNs", "OAuth", "GraphQL", "OCaml", "OpenAL", "OpenDNS", "OpenGL", "OpenMP", "OpenSSH", "OpenSSL", "OpenStreetMap", "OpenTelemetry", "OpenType", "WebGL", "WebGL2", "WebGPU", "WebRTC", "WebSocket", "WebTransport", "WebP", "OpenExr", "YCbCr", "sRGB", "TensorFlow", "TrueType", "iOS", "macOS", "FreeBSD", "NetBSD", "OpenBSD", "NixOS", "TeX", "LaTeX", "BibTeX", "BibLaTeX", "MinGW", "CamelCase"]` +**Default Value:** `["KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "MHz", "GHz", "THz", "AccessKit", "CoAP", "CoreFoundation", "CoreGraphics", "CoreText", "DevOps", "Direct2D", "Direct3D", "DirectWrite", "DirectX", "ECMAScript", "GPLv2", "GPLv3", "GitHub", "GitLab", "IPv4", "IPv6", "ClojureScript", "CoffeeScript", "JavaScript", "PostScript", "PureScript", "TypeScript", "PowerPC", "WebAssembly", "NaN", "NaNs", "OAuth", "GraphQL", "OCaml", "OpenAL", "OpenDNS", "OpenGL", "OpenMP", "OpenSSH", "OpenSSL", "OpenStreetMap", "OpenTelemetry", "OpenType", "WebGL", "WebGL2", "WebGPU", "WebRTC", "WebSocket", "WebTransport", "WebP", "OpenExr", "YCbCr", "sRGB", "TensorFlow", "TrueType", "iOS", "macOS", "FreeBSD", "NetBSD", "OpenBSD", "NixOS", "TeX", "LaTeX", "BibTeX", "BibLaTeX", "MinGW", "CamelCase"]` --- **Affected lints:** diff --git a/src/tools/clippy/clippy_config/src/conf.rs b/src/tools/clippy/clippy_config/src/conf.rs index 8167d75583e..2ad3f2efcdd 100644 --- a/src/tools/clippy/clippy_config/src/conf.rs +++ b/src/tools/clippy/clippy_config/src/conf.rs @@ -34,7 +34,7 @@ const DEFAULT_DOC_VALID_IDENTS: &[&str] = &[ "GitHub", "GitLab", "IPv4", "IPv6", "ClojureScript", "CoffeeScript", "JavaScript", "PostScript", "PureScript", "TypeScript", - "WebAssembly", + "PowerPC", "WebAssembly", "NaN", "NaNs", "OAuth", "GraphQL", "OCaml", diff --git a/src/tools/clippy/clippy_dev/src/dogfood.rs b/src/tools/clippy/clippy_dev/src/dogfood.rs index 7e9d92458d0..d0fca952b93 100644 --- a/src/tools/clippy/clippy_dev/src/dogfood.rs +++ b/src/tools/clippy/clippy_dev/src/dogfood.rs @@ -1,35 +1,28 @@ -use crate::utils::exit_if_err; -use std::process::Command; +use crate::utils::{cargo_cmd, run_exit_on_err}; +use itertools::Itertools; /// # Panics /// /// Panics if unable to run the dogfood test #[allow(clippy::fn_params_excessive_bools)] pub fn dogfood(fix: bool, allow_dirty: bool, allow_staged: bool, allow_no_vcs: bool) { - let mut cmd = Command::new("cargo"); - - cmd.args(["test", "--test", "dogfood"]) - .args(["--features", "internal"]) - .args(["--", "dogfood_clippy", "--nocapture"]); - - let mut dogfood_args = Vec::new(); - if fix { - dogfood_args.push("--fix"); - } - - if allow_dirty { - dogfood_args.push("--allow-dirty"); - } - - if allow_staged { - dogfood_args.push("--allow-staged"); - } - - if allow_no_vcs { - dogfood_args.push("--allow-no-vcs"); - } - - cmd.env("__CLIPPY_DOGFOOD_ARGS", dogfood_args.join(" ")); - - exit_if_err(cmd.status()); + run_exit_on_err( + "cargo test", + cargo_cmd() + .args(["test", "--test", "dogfood"]) + .args(["--features", "internal"]) + .args(["--", "dogfood_clippy", "--nocapture"]) + .env( + "__CLIPPY_DOGFOOD_ARGS", + [ + if fix { "--fix" } else { "" }, + if allow_dirty { "--allow-dirty" } else { "" }, + if allow_staged { "--allow-staged" } else { "" }, + if allow_no_vcs { "--allow-no-vcs" } else { "" }, + ] + .iter() + .filter(|x| !x.is_empty()) + .join(" "), + ), + ); } diff --git a/src/tools/clippy/clippy_dev/src/lib.rs b/src/tools/clippy/clippy_dev/src/lib.rs index 40aadf4589a..16f413e0c86 100644 --- a/src/tools/clippy/clippy_dev/src/lib.rs +++ b/src/tools/clippy/clippy_dev/src/lib.rs @@ -15,8 +15,7 @@ )] #![allow(clippy::missing_panics_doc)] -// The `rustc_driver` crate seems to be required in order to use the `rust_lexer` crate. -#[allow(unused_extern_crates)] +#[expect(unused_extern_crates, reason = "required to link to rustc crates")] extern crate rustc_driver; extern crate rustc_lexer; extern crate rustc_literal_escaper; @@ -32,4 +31,6 @@ pub mod serve; pub mod setup; pub mod sync; pub mod update_lints; -pub mod utils; + +mod utils; +pub use utils::{ClippyInfo, UpdateMode}; diff --git a/src/tools/clippy/clippy_dev/src/lint.rs b/src/tools/clippy/clippy_dev/src/lint.rs index 0d66f167a38..2d9f563cdae 100644 --- a/src/tools/clippy/clippy_dev/src/lint.rs +++ b/src/tools/clippy/clippy_dev/src/lint.rs @@ -1,19 +1,18 @@ -use crate::utils::{cargo_clippy_path, exit_if_err}; -use std::process::{self, Command}; +use crate::utils::{ErrAction, cargo_cmd, expect_action, run_exit_on_err}; +use std::process::Command; use std::{env, fs}; -pub fn run<'a>(path: &str, edition: &str, args: impl Iterator<Item = &'a String>) { - let is_file = match fs::metadata(path) { - Ok(metadata) => metadata.is_file(), - Err(e) => { - eprintln!("Failed to read {path}: {e:?}"); - process::exit(1); - }, - }; +#[cfg(not(windows))] +static CARGO_CLIPPY_EXE: &str = "cargo-clippy"; +#[cfg(windows)] +static CARGO_CLIPPY_EXE: &str = "cargo-clippy.exe"; +pub fn run<'a>(path: &str, edition: &str, args: impl Iterator<Item = &'a String>) { + let is_file = expect_action(fs::metadata(path), ErrAction::Read, path).is_file(); if is_file { - exit_if_err( - Command::new(env::var("CARGO").unwrap_or_else(|_| "cargo".into())) + run_exit_on_err( + "cargo run", + cargo_cmd() .args(["run", "--bin", "clippy-driver", "--"]) .args(["-L", "./target/debug"]) .args(["-Z", "no-codegen"]) @@ -21,24 +20,25 @@ pub fn run<'a>(path: &str, edition: &str, args: impl Iterator<Item = &'a String> .arg(path) .args(args) // Prevent rustc from creating `rustc-ice-*` files the console output is enough. - .env("RUSTC_ICE", "0") - .status(), + .env("RUSTC_ICE", "0"), ); } else { - exit_if_err( - Command::new(env::var("CARGO").unwrap_or_else(|_| "cargo".into())) - .arg("build") - .status(), - ); - - let status = Command::new(cargo_clippy_path()) - .arg("clippy") - .args(args) - // Prevent rustc from creating `rustc-ice-*` files the console output is enough. - .env("RUSTC_ICE", "0") - .current_dir(path) - .status(); + // Ideally this would just be `cargo run`, but the working directory needs to be + // set to clippy's directory when building, and the target project's directory + // when running clippy. `cargo` can only set a single working directory for both + // when using `run`. + run_exit_on_err("cargo build", cargo_cmd().arg("build")); - exit_if_err(status); + let mut exe = env::current_exe().expect("failed to get current executable name"); + exe.set_file_name(CARGO_CLIPPY_EXE); + run_exit_on_err( + "cargo clippy", + Command::new(exe) + .arg("clippy") + .args(args) + // Prevent rustc from creating `rustc-ice-*` files the console output is enough. + .env("RUSTC_ICE", "0") + .current_dir(path), + ); } } diff --git a/src/tools/clippy/clippy_dev/src/main.rs b/src/tools/clippy/clippy_dev/src/main.rs index 26aa269fb63..5fef231f6ca 100644 --- a/src/tools/clippy/clippy_dev/src/main.rs +++ b/src/tools/clippy/clippy_dev/src/main.rs @@ -4,14 +4,15 @@ use clap::{Args, Parser, Subcommand}; use clippy_dev::{ - deprecate_lint, dogfood, fmt, lint, new_lint, release, rename_lint, serve, setup, sync, update_lints, utils, + ClippyInfo, UpdateMode, deprecate_lint, dogfood, fmt, lint, new_lint, release, rename_lint, serve, setup, sync, + update_lints, }; use std::convert::Infallible; use std::env; fn main() { let dev = Dev::parse(); - let clippy = utils::ClippyInfo::search_for_manifest(); + let clippy = ClippyInfo::search_for_manifest(); if let Err(e) = env::set_current_dir(&clippy.path) { panic!("error setting current directory to `{}`: {e}", clippy.path.display()); } @@ -26,8 +27,8 @@ fn main() { allow_staged, allow_no_vcs, } => dogfood::dogfood(fix, allow_dirty, allow_staged, allow_no_vcs), - DevCommand::Fmt { check } => fmt::run(utils::UpdateMode::from_check(check)), - DevCommand::UpdateLints { check } => update_lints::update(utils::UpdateMode::from_check(check)), + DevCommand::Fmt { check } => fmt::run(UpdateMode::from_check(check)), + DevCommand::UpdateLints { check } => update_lints::update(UpdateMode::from_check(check)), DevCommand::NewLint { pass, name, @@ -35,7 +36,7 @@ fn main() { r#type, msrv, } => match new_lint::create(clippy.version, pass, &name, &category, r#type.as_deref(), msrv) { - Ok(()) => update_lints::update(utils::UpdateMode::Change), + Ok(()) => update_lints::update(UpdateMode::Change), Err(e) => eprintln!("Unable to create lint: {e}"), }, DevCommand::Setup(SetupCommand { subcommand }) => match subcommand { diff --git a/src/tools/clippy/clippy_dev/src/serve.rs b/src/tools/clippy/clippy_dev/src/serve.rs index 498ffeba9d6..d9e01813381 100644 --- a/src/tools/clippy/clippy_dev/src/serve.rs +++ b/src/tools/clippy/clippy_dev/src/serve.rs @@ -1,7 +1,11 @@ +use crate::utils::{ErrAction, cargo_cmd, expect_action}; +use core::fmt::Display; +use core::mem; use std::path::Path; use std::process::Command; use std::time::{Duration, SystemTime}; -use std::{env, thread}; +use std::{fs, thread}; +use walkdir::WalkDir; #[cfg(windows)] const PYTHON: &str = "python"; @@ -18,56 +22,83 @@ pub fn run(port: u16, lint: Option<String>) -> ! { Some(lint) => format!("http://localhost:{port}/#{lint}"), }); + let mut last_update = mtime("util/gh-pages/index.html"); loop { - let index_time = mtime("util/gh-pages/index.html"); - let times = [ - "clippy_lints/src", - "util/gh-pages/index_template.html", - "tests/compile-test.rs", - ] - .map(mtime); - - if times.iter().any(|&time| index_time < time) { - Command::new(env::var("CARGO").unwrap_or_else(|_| "cargo".into())) - .arg("collect-metadata") - .spawn() - .unwrap() - .wait() - .unwrap(); + if is_metadata_outdated(mem::replace(&mut last_update, SystemTime::now())) { + // Ignore the command result; we'll fall back to displaying the old metadata. + let _ = expect_action( + cargo_cmd().arg("collect-metadata").status(), + ErrAction::Run, + "cargo collect-metadata", + ); + last_update = SystemTime::now(); } + + // Only start the web server the first time around. if let Some(url) = url.take() { thread::spawn(move || { - let mut child = Command::new(PYTHON) - .arg("-m") - .arg("http.server") - .arg(port.to_string()) - .current_dir("util/gh-pages") - .spawn() - .unwrap(); + let mut child = expect_action( + Command::new(PYTHON) + .args(["-m", "http.server", port.to_string().as_str()]) + .current_dir("util/gh-pages") + .spawn(), + ErrAction::Run, + "python -m http.server", + ); // Give some time for python to start thread::sleep(Duration::from_millis(500)); // Launch browser after first export.py has completed and http.server is up let _result = opener::open(url); - child.wait().unwrap(); + expect_action(child.wait(), ErrAction::Run, "python -m http.server"); }); } + + // Delay to avoid updating the metadata too aggressively. thread::sleep(Duration::from_millis(1000)); } } -fn mtime(path: impl AsRef<Path>) -> SystemTime { - let path = path.as_ref(); - if path.is_dir() { - path.read_dir() - .into_iter() - .flatten() - .flatten() - .map(|entry| mtime(entry.path())) - .max() - .unwrap_or(SystemTime::UNIX_EPOCH) - } else { - path.metadata() - .and_then(|metadata| metadata.modified()) - .unwrap_or(SystemTime::UNIX_EPOCH) +fn log_err_and_continue<T>(res: Result<T, impl Display>, path: &Path) -> Option<T> { + match res { + Ok(x) => Some(x), + Err(ref e) => { + eprintln!("error reading `{}`: {e}", path.display()); + None + }, } } + +fn mtime(path: &str) -> SystemTime { + log_err_and_continue(fs::metadata(path), path.as_ref()) + .and_then(|metadata| log_err_and_continue(metadata.modified(), path.as_ref())) + .unwrap_or(SystemTime::UNIX_EPOCH) +} + +fn is_metadata_outdated(time: SystemTime) -> bool { + // Ignore all IO errors here. We don't want to stop them from hosting the server. + if time < mtime("util/gh-pages/index_template.html") || time < mtime("tests/compile-test.rs") { + return true; + } + let Some(dir) = log_err_and_continue(fs::read_dir("."), ".".as_ref()) else { + return false; + }; + dir.map_while(|e| log_err_and_continue(e, ".".as_ref())).any(|e| { + let name = e.file_name(); + let name_bytes = name.as_encoded_bytes(); + if (name_bytes.starts_with(b"clippy_lints") && name_bytes != b"clippy_lints_internal") + || name_bytes == b"clippy_config" + { + WalkDir::new(&name) + .into_iter() + .map_while(|e| log_err_and_continue(e, name.as_ref())) + .filter(|e| e.file_type().is_file()) + .filter_map(|e| { + log_err_and_continue(e.metadata(), e.path()) + .and_then(|m| log_err_and_continue(m.modified(), e.path())) + }) + .any(|ftime| time < ftime) + } else { + false + } + }) +} diff --git a/src/tools/clippy/clippy_dev/src/setup/git_hook.rs b/src/tools/clippy/clippy_dev/src/setup/git_hook.rs index c7c53bc69d0..c5a1e8264c7 100644 --- a/src/tools/clippy/clippy_dev/src/setup/git_hook.rs +++ b/src/tools/clippy/clippy_dev/src/setup/git_hook.rs @@ -1,8 +1,6 @@ use std::fs; use std::path::Path; -use super::verify_inside_clippy_dir; - /// Rusts setup uses `git rev-parse --git-common-dir` to get the root directory of the repo. /// I've decided against this for the sake of simplicity and to make sure that it doesn't install /// the hook if `clippy_dev` would be used in the rust tree. The hook also references this tool @@ -35,10 +33,6 @@ pub fn install_hook(force_override: bool) { } fn check_precondition(force_override: bool) -> bool { - if !verify_inside_clippy_dir() { - return false; - } - // Make sure that we can find the git repository let git_path = Path::new(REPO_GIT_DIR); if !git_path.exists() || !git_path.is_dir() { diff --git a/src/tools/clippy/clippy_dev/src/setup/mod.rs b/src/tools/clippy/clippy_dev/src/setup/mod.rs index b0d31814639..5e938fff126 100644 --- a/src/tools/clippy/clippy_dev/src/setup/mod.rs +++ b/src/tools/clippy/clippy_dev/src/setup/mod.rs @@ -2,23 +2,3 @@ pub mod git_hook; pub mod intellij; pub mod toolchain; pub mod vscode; - -use std::path::Path; - -const CLIPPY_DEV_DIR: &str = "clippy_dev"; - -/// This function verifies that the tool is being executed in the clippy directory. -/// This is useful to ensure that setups only modify Clippy's resources. The verification -/// is done by checking that `clippy_dev` is a sub directory of the current directory. -/// -/// It will print an error message and return `false` if the directory could not be -/// verified. -fn verify_inside_clippy_dir() -> bool { - let path = Path::new(CLIPPY_DEV_DIR); - if path.exists() && path.is_dir() { - true - } else { - eprintln!("error: unable to verify that the working directory is clippy's directory"); - false - } -} diff --git a/src/tools/clippy/clippy_dev/src/setup/toolchain.rs b/src/tools/clippy/clippy_dev/src/setup/toolchain.rs index ecd80215f7e..c64ae4ef3c3 100644 --- a/src/tools/clippy/clippy_dev/src/setup/toolchain.rs +++ b/src/tools/clippy/clippy_dev/src/setup/toolchain.rs @@ -1,20 +1,12 @@ +use crate::utils::{cargo_cmd, run_exit_on_err}; use std::env::consts::EXE_SUFFIX; use std::env::current_dir; use std::ffi::OsStr; use std::fs; use std::path::{Path, PathBuf}; -use std::process::Command; use walkdir::WalkDir; -use crate::utils::exit_if_err; - -use super::verify_inside_clippy_dir; - pub fn create(standalone: bool, force: bool, release: bool, name: &str) { - if !verify_inside_clippy_dir() { - return; - } - let rustup_home = std::env::var("RUSTUP_HOME").unwrap(); let toolchain = std::env::var("RUSTUP_TOOLCHAIN").unwrap(); @@ -51,11 +43,10 @@ pub fn create(standalone: bool, force: bool, release: bool, name: &str) { } } - let status = Command::new("cargo") - .arg("build") - .args(release.then_some("--release")) - .status(); - exit_if_err(status); + run_exit_on_err( + "cargo build", + cargo_cmd().arg("build").args(release.then_some("--release")), + ); install_bin("cargo-clippy", &dest, standalone, release); install_bin("clippy-driver", &dest, standalone, release); diff --git a/src/tools/clippy/clippy_dev/src/setup/vscode.rs b/src/tools/clippy/clippy_dev/src/setup/vscode.rs index a37c873eed4..a24aef65991 100644 --- a/src/tools/clippy/clippy_dev/src/setup/vscode.rs +++ b/src/tools/clippy/clippy_dev/src/setup/vscode.rs @@ -1,8 +1,6 @@ use std::fs; use std::path::Path; -use super::verify_inside_clippy_dir; - const VSCODE_DIR: &str = ".vscode"; const TASK_SOURCE_FILE: &str = "util/etc/vscode-tasks.json"; const TASK_TARGET_FILE: &str = ".vscode/tasks.json"; @@ -22,10 +20,6 @@ pub fn install_tasks(force_override: bool) { } fn check_install_precondition(force_override: bool) -> bool { - if !verify_inside_clippy_dir() { - return false; - } - let vs_dir_path = Path::new(VSCODE_DIR); if vs_dir_path.exists() { // verify the target will be valid diff --git a/src/tools/clippy/clippy_dev/src/utils.rs b/src/tools/clippy/clippy_dev/src/utils.rs index 89962a11034..057951d0e33 100644 --- a/src/tools/clippy/clippy_dev/src/utils.rs +++ b/src/tools/clippy/clippy_dev/src/utils.rs @@ -8,15 +8,10 @@ use std::ffi::OsStr; use std::fs::{self, OpenOptions}; use std::io::{self, Read as _, Seek as _, SeekFrom, Write}; use std::path::{Path, PathBuf}; -use std::process::{self, Command, ExitStatus, Stdio}; +use std::process::{self, Command, Stdio}; use std::{env, thread}; use walkdir::WalkDir; -#[cfg(not(windows))] -static CARGO_CLIPPY_EXE: &str = "cargo-clippy"; -#[cfg(windows)] -static CARGO_CLIPPY_EXE: &str = "cargo-clippy.exe"; - #[derive(Clone, Copy)] pub enum ErrAction { Open, @@ -118,16 +113,14 @@ impl<'a> File<'a> { } } -/// Returns the path to the `cargo-clippy` binary -/// -/// # Panics -/// -/// Panics if the path of current executable could not be retrieved. +/// Creates a `Command` for running cargo. #[must_use] -pub fn cargo_clippy_path() -> PathBuf { - let mut path = env::current_exe().expect("failed to get current executable name"); - path.set_file_name(CARGO_CLIPPY_EXE); - path +pub fn cargo_cmd() -> Command { + if let Some(path) = env::var_os("CARGO") { + Command::new(path) + } else { + Command::new("cargo") + } } #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord)] @@ -288,19 +281,6 @@ impl ClippyInfo { } } -/// # Panics -/// Panics if given command result was failed. -pub fn exit_if_err(status: io::Result<ExitStatus>) { - match status.expect("failed to run command").code() { - Some(0) => {}, - Some(n) => process::exit(n), - None => { - eprintln!("Killed by signal"); - process::exit(1); - }, - } -} - #[derive(Clone, Copy)] pub enum UpdateStatus { Unchanged, @@ -341,6 +321,7 @@ pub struct FileUpdater { dst_buf: String, } impl FileUpdater { + #[track_caller] fn update_file_checked_inner( &mut self, tool: &str, @@ -364,6 +345,7 @@ impl FileUpdater { } } + #[track_caller] fn update_file_inner(&mut self, path: &Path, update: &mut dyn FnMut(&Path, &str, &mut String) -> UpdateStatus) { let mut file = File::open(path, OpenOptions::new().read(true).write(true)); file.read_to_cleared_string(&mut self.src_buf); @@ -373,6 +355,7 @@ impl FileUpdater { } } + #[track_caller] pub fn update_file_checked( &mut self, tool: &str, @@ -383,6 +366,7 @@ impl FileUpdater { self.update_file_checked_inner(tool, mode, path.as_ref(), update); } + #[track_caller] pub fn update_file( &mut self, path: impl AsRef<Path>, @@ -450,7 +434,6 @@ pub enum Token<'a> { OpenParen, Pound, Semi, - Slash, } pub struct RustSearcher<'txt> { @@ -528,7 +511,6 @@ impl<'txt> RustSearcher<'txt> { | (Token::OpenParen, lexer::TokenKind::OpenParen) | (Token::Pound, lexer::TokenKind::Pound) | (Token::Semi, lexer::TokenKind::Semi) - | (Token::Slash, lexer::TokenKind::Slash) | ( Token::LitStr, lexer::TokenKind::Literal { @@ -601,7 +583,7 @@ impl<'txt> RustSearcher<'txt> { } } -#[expect(clippy::must_use_candidate)] +#[track_caller] pub fn try_rename_file(old_name: &Path, new_name: &Path) -> bool { match OpenOptions::new().create_new(true).write(true).open(new_name) { Ok(file) => drop(file), @@ -623,7 +605,7 @@ pub fn try_rename_file(old_name: &Path, new_name: &Path) -> bool { } } -#[expect(clippy::must_use_candidate)] +#[track_caller] pub fn try_rename_dir(old_name: &Path, new_name: &Path) -> bool { match fs::create_dir(new_name) { Ok(()) => {}, @@ -649,10 +631,19 @@ pub fn try_rename_dir(old_name: &Path, new_name: &Path) -> bool { } } -pub fn write_file(path: &Path, contents: &str) { - expect_action(fs::write(path, contents), ErrAction::Write, path); +#[track_caller] +pub fn run_exit_on_err(path: &(impl AsRef<Path> + ?Sized), cmd: &mut Command) { + match expect_action(cmd.status(), ErrAction::Run, path.as_ref()).code() { + Some(0) => {}, + Some(n) => process::exit(n), + None => { + eprintln!("{} killed by signal", path.as_ref().display()); + process::exit(1); + }, + } } +#[track_caller] #[must_use] pub fn run_with_output(path: &(impl AsRef<Path> + ?Sized), cmd: &mut Command) -> Vec<u8> { fn f(path: &Path, cmd: &mut Command) -> Vec<u8> { @@ -738,7 +729,7 @@ pub fn split_args_for_threads( } } -#[expect(clippy::must_use_candidate)] +#[track_caller] pub fn delete_file_if_exists(path: &Path) -> bool { match fs::remove_file(path) { Ok(()) => true, @@ -747,6 +738,7 @@ pub fn delete_file_if_exists(path: &Path) -> bool { } } +#[track_caller] pub fn delete_dir_if_exists(path: &Path) { match fs::remove_dir_all(path) { Ok(()) => {}, diff --git a/src/tools/clippy/clippy_lints/src/casts/borrow_as_ptr.rs b/src/tools/clippy/clippy_lints/src/casts/borrow_as_ptr.rs index e3b125a8d5b..eb75d5576f5 100644 --- a/src/tools/clippy/clippy_lints/src/casts/borrow_as_ptr.rs +++ b/src/tools/clippy/clippy_lints/src/casts/borrow_as_ptr.rs @@ -2,7 +2,7 @@ use clippy_utils::diagnostics::{span_lint_and_sugg, span_lint_and_then}; use clippy_utils::msrvs::Msrv; use clippy_utils::source::{snippet_with_applicability, snippet_with_context}; use clippy_utils::sugg::has_enclosing_paren; -use clippy_utils::{get_parent_expr, is_expr_temporary_value, is_lint_allowed, msrvs, std_or_core}; +use clippy_utils::{get_parent_expr, is_expr_temporary_value, is_from_proc_macro, is_lint_allowed, msrvs, std_or_core}; use rustc_errors::Applicability; use rustc_hir::{BorrowKind, Expr, ExprKind, Mutability, Ty, TyKind}; use rustc_lint::LateContext; @@ -22,13 +22,12 @@ pub(super) fn check<'tcx>( && !matches!(target.ty.kind, TyKind::TraitObject(..)) && let ExprKind::AddrOf(BorrowKind::Ref, mutability, e) = cast_expr.kind && !is_lint_allowed(cx, BORROW_AS_PTR, expr.hir_id) + // Fix #9884 + && !is_expr_temporary_value(cx, e) + && !is_from_proc_macro(cx, expr) { let mut app = Applicability::MachineApplicable; let snip = snippet_with_context(cx, e.span, cast_expr.span.ctxt(), "..", &mut app).0; - // Fix #9884 - if is_expr_temporary_value(cx, e) { - return false; - } let (suggestion, span) = if msrv.meets(cx, msrvs::RAW_REF_OP) { // Make sure that the span to be replaced doesn't include parentheses, that could break the diff --git a/src/tools/clippy/clippy_lints/src/casts/char_lit_as_u8.rs b/src/tools/clippy/clippy_lints/src/casts/char_lit_as_u8.rs index a7d3868f76c..964eaf2a0a2 100644 --- a/src/tools/clippy/clippy_lints/src/casts/char_lit_as_u8.rs +++ b/src/tools/clippy/clippy_lints/src/casts/char_lit_as_u8.rs @@ -4,18 +4,17 @@ use rustc_ast::LitKind; use rustc_errors::Applicability; use rustc_hir::{Expr, ExprKind}; use rustc_lint::LateContext; -use rustc_middle::ty::{self, UintTy}; +use rustc_middle::ty::{self, Ty, UintTy}; use super::CHAR_LIT_AS_U8; -pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>) { - if let ExprKind::Cast(e, _) = &expr.kind - && let ExprKind::Lit(l) = &e.kind +pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_from_expr: &Expr<'_>, cast_to: Ty<'_>) { + if let ExprKind::Lit(l) = &cast_from_expr.kind && let LitKind::Char(c) = l.node - && ty::Uint(UintTy::U8) == *cx.typeck_results().expr_ty(expr).kind() + && ty::Uint(UintTy::U8) == *cast_to.kind() { let mut applicability = Applicability::MachineApplicable; - let snippet = snippet_with_applicability(cx, e.span, "'x'", &mut applicability); + let snippet = snippet_with_applicability(cx, cast_from_expr.span, "'x'", &mut applicability); span_lint_and_then( cx, diff --git a/src/tools/clippy/clippy_lints/src/casts/mod.rs b/src/tools/clippy/clippy_lints/src/casts/mod.rs index dcc439a272c..e25df9dd249 100644 --- a/src/tools/clippy/clippy_lints/src/casts/mod.rs +++ b/src/tools/clippy/clippy_lints/src/casts/mod.rs @@ -871,6 +871,7 @@ impl<'tcx> LateLintPass<'tcx> for Casts { if !expr.span.from_expansion() && unnecessary_cast::check(cx, expr, cast_from_expr, cast_from, cast_to) { return; } + char_lit_as_u8::check(cx, expr, cast_from_expr, cast_to); cast_slice_from_raw_parts::check(cx, expr, cast_from_expr, cast_to, self.msrv); ptr_cast_constness::check(cx, expr, cast_from_expr, cast_from, cast_to, self.msrv); as_ptr_cast_mut::check(cx, expr, cast_from_expr, cast_to); @@ -911,7 +912,6 @@ impl<'tcx> LateLintPass<'tcx> for Casts { borrow_as_ptr::check_implicit_cast(cx, expr); } cast_ptr_alignment::check(cx, expr); - char_lit_as_u8::check(cx, expr); ptr_as_ptr::check(cx, expr, self.msrv); cast_slice_different_sizes::check(cx, expr, self.msrv); ptr_cast_constness::check_null_ptr_cast_method(cx, expr); diff --git a/src/tools/clippy/clippy_lints/src/casts/ptr_as_ptr.rs b/src/tools/clippy/clippy_lints/src/casts/ptr_as_ptr.rs index ee0f3fa81c6..89075409098 100644 --- a/src/tools/clippy/clippy_lints/src/casts/ptr_as_ptr.rs +++ b/src/tools/clippy/clippy_lints/src/casts/ptr_as_ptr.rs @@ -1,4 +1,5 @@ use clippy_utils::diagnostics::span_lint_and_sugg; +use clippy_utils::is_from_proc_macro; use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet_with_applicability; use clippy_utils::sugg::Sugg; @@ -25,7 +26,7 @@ impl OmitFollowedCastReason<'_> { } } -pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, msrv: Msrv) { +pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'tcx>, msrv: Msrv) { if let ExprKind::Cast(cast_expr, cast_to_hir_ty) = expr.kind && let (cast_from, cast_to) = (cx.typeck_results().expr_ty(cast_expr), cx.typeck_results().expr_ty(expr)) && let ty::RawPtr(_, from_mutbl) = cast_from.kind() @@ -36,6 +37,7 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, msrv: Msrv) { // as explained here: https://github.com/rust-lang/rust/issues/60602. && to_pointee_ty.is_sized(cx.tcx, cx.typing_env()) && msrv.meets(cx, msrvs::POINTER_CAST) + && !is_from_proc_macro(cx, expr) { let mut app = Applicability::MachineApplicable; let turbofish = match &cast_to_hir_ty.kind { diff --git a/src/tools/clippy/clippy_lints/src/cognitive_complexity.rs b/src/tools/clippy/clippy_lints/src/cognitive_complexity.rs index 8f1c0296524..8f95c63a854 100644 --- a/src/tools/clippy/clippy_lints/src/cognitive_complexity.rs +++ b/src/tools/clippy/clippy_lints/src/cognitive_complexity.rs @@ -56,7 +56,7 @@ impl_lint_pass!(CognitiveComplexity => [COGNITIVE_COMPLEXITY]); impl CognitiveComplexity { fn check<'tcx>( - &mut self, + &self, cx: &LateContext<'tcx>, kind: FnKind<'tcx>, decl: &'tcx FnDecl<'_>, diff --git a/src/tools/clippy/clippy_lints/src/collapsible_if.rs b/src/tools/clippy/clippy_lints/src/collapsible_if.rs index e3103e2d301..ad610fbd8d2 100644 --- a/src/tools/clippy/clippy_lints/src/collapsible_if.rs +++ b/src/tools/clippy/clippy_lints/src/collapsible_if.rs @@ -5,7 +5,7 @@ use clippy_utils::source::{IntoSpan as _, SpanRangeExt, snippet, snippet_block_w use clippy_utils::{span_contains_non_whitespace, tokenize_with_text}; use rustc_ast::BinOpKind; use rustc_errors::Applicability; -use rustc_hir::{Block, Expr, ExprKind, Stmt, StmtKind}; +use rustc_hir::{Block, Expr, ExprKind, StmtKind}; use rustc_lexer::TokenKind; use rustc_lint::{LateContext, LateLintPass}; use rustc_session::impl_lint_pass; @@ -141,11 +141,7 @@ impl CollapsibleIf { // Prevent "elseif" // Check that the "else" is followed by whitespace - let requires_space = if let Some(c) = snippet(cx, up_to_else, "..").chars().last() { - !c.is_whitespace() - } else { - false - }; + let requires_space = snippet(cx, up_to_else, "..").ends_with(|c: char| !c.is_whitespace()); let mut applicability = Applicability::MachineApplicable; diag.span_suggestion( else_block.span, @@ -173,8 +169,7 @@ impl CollapsibleIf { && cx.tcx.hir_attrs(inner.hir_id).is_empty() && let ExprKind::If(check_inner, _, None) = &inner.kind && self.eligible_condition(cx, check_inner) - && let ctxt = expr.span.ctxt() - && inner.span.ctxt() == ctxt + && expr.span.eq_ctxt(inner.span) && !block_starts_with_significant_tokens(cx, then, inner, self.lint_commented_code) { span_lint_and_then( @@ -262,14 +257,9 @@ fn block_starts_with_significant_tokens( /// If `block` is a block with either one expression or a statement containing an expression, /// return the expression. We don't peel blocks recursively, as extra blocks might be intentional. fn expr_block<'tcx>(block: &Block<'tcx>) -> Option<&'tcx Expr<'tcx>> { - match block.stmts { - [] => block.expr, - [ - Stmt { - kind: StmtKind::Semi(expr), - .. - }, - ] if block.expr.is_none() => Some(expr), + match (block.stmts, block.expr) { + ([], expr) => expr, + ([stmt], None) if let StmtKind::Semi(expr) = stmt.kind => Some(expr), _ => None, } } diff --git a/src/tools/clippy/clippy_lints/src/declared_lints.rs b/src/tools/clippy/clippy_lints/src/declared_lints.rs index e1cb08e361c..e67e8d9070f 100644 --- a/src/tools/clippy/clippy_lints/src/declared_lints.rs +++ b/src/tools/clippy/clippy_lints/src/declared_lints.rs @@ -187,6 +187,7 @@ pub static LINTS: &[&::declare_clippy_lint::LintInfo] = &[ crate::from_raw_with_void_ptr::FROM_RAW_WITH_VOID_PTR_INFO, crate::from_str_radix_10::FROM_STR_RADIX_10_INFO, crate::functions::DOUBLE_MUST_USE_INFO, + crate::functions::DUPLICATE_UNDERSCORE_ARGUMENT_INFO, crate::functions::IMPL_TRAIT_IN_PARAMS_INFO, crate::functions::MISNAMED_GETTERS_INFO, crate::functions::MUST_USE_CANDIDATE_INFO, @@ -505,7 +506,6 @@ pub static LINTS: &[&::declare_clippy_lint::LintInfo] = &[ crate::misc::USED_UNDERSCORE_BINDING_INFO, crate::misc::USED_UNDERSCORE_ITEMS_INFO, crate::misc_early::BUILTIN_TYPE_SHADOW_INFO, - crate::misc_early::DUPLICATE_UNDERSCORE_ARGUMENT_INFO, crate::misc_early::MIXED_CASE_HEX_LITERALS_INFO, crate::misc_early::REDUNDANT_AT_REST_PATTERN_INFO, crate::misc_early::REDUNDANT_PATTERN_INFO, diff --git a/src/tools/clippy/clippy_lints/src/dereference.rs b/src/tools/clippy/clippy_lints/src/dereference.rs index 995a1209595..9aa2f3cf0a5 100644 --- a/src/tools/clippy/clippy_lints/src/dereference.rs +++ b/src/tools/clippy/clippy_lints/src/dereference.rs @@ -1,12 +1,11 @@ use clippy_utils::diagnostics::{span_lint_and_sugg, span_lint_hir_and_then}; use clippy_utils::source::{snippet_with_applicability, snippet_with_context}; use clippy_utils::sugg::has_enclosing_paren; -use clippy_utils::ty::{implements_trait, is_manually_drop}; +use clippy_utils::ty::{adjust_derefs_manually_drop, implements_trait, is_manually_drop}; use clippy_utils::{ DefinedTy, ExprUseNode, expr_use_ctxt, get_parent_expr, is_block_like, is_lint_allowed, path_to_local, peel_middle_ty_refs, }; -use core::mem; use rustc_ast::util::parser::ExprPrecedence; use rustc_data_structures::fx::FxIndexMap; use rustc_errors::Applicability; @@ -707,14 +706,6 @@ fn try_parse_ref_op<'tcx>( )) } -// Checks if the adjustments contains a deref of `ManuallyDrop<_>` -fn adjust_derefs_manually_drop<'tcx>(adjustments: &'tcx [Adjustment<'tcx>], mut ty: Ty<'tcx>) -> bool { - adjustments.iter().any(|a| { - let ty = mem::replace(&mut ty, a.target); - matches!(a.kind, Adjust::Deref(Some(ref op)) if op.mutbl == Mutability::Mut) && is_manually_drop(ty) - }) -} - // Checks whether the type for a deref call actually changed the type, not just the mutability of // the reference. fn deref_method_same_type<'tcx>(result_ty: Ty<'tcx>, arg_ty: Ty<'tcx>) -> bool { diff --git a/src/tools/clippy/clippy_lints/src/doc/mod.rs b/src/tools/clippy/clippy_lints/src/doc/mod.rs index d27d68d3866..eca3bc390d7 100644 --- a/src/tools/clippy/clippy_lints/src/doc/mod.rs +++ b/src/tools/clippy/clippy_lints/src/doc/mod.rs @@ -1139,12 +1139,12 @@ fn check_doc<'a, Events: Iterator<Item = (pulldown_cmark::Event<'a>, Range<usize None, "a backtick may be missing a pair", ); + text_to_check.clear(); } else { - for (text, range, assoc_code_level) in text_to_check { + for (text, range, assoc_code_level) in text_to_check.drain(..) { markdown::check(cx, valid_idents, &text, &fragments, range, assoc_code_level, blockquote_level); } } - text_to_check = Vec::new(); }, Start(FootnoteDefinition(..)) => in_footnote_definition = true, End(TagEnd::FootnoteDefinition) => in_footnote_definition = false, diff --git a/src/tools/clippy/clippy_lints/src/duplicate_mod.rs b/src/tools/clippy/clippy_lints/src/duplicate_mod.rs index ce551a64d99..759b7b6837b 100644 --- a/src/tools/clippy/clippy_lints/src/duplicate_mod.rs +++ b/src/tools/clippy/clippy_lints/src/duplicate_mod.rs @@ -63,7 +63,7 @@ impl_lint_pass!(DuplicateMod => [DUPLICATE_MOD]); impl EarlyLintPass for DuplicateMod { fn check_item(&mut self, cx: &EarlyContext<'_>, item: &Item) { - if let ItemKind::Mod(_, _, ModKind::Loaded(_, Inline::No, mod_spans, _)) = &item.kind + if let ItemKind::Mod(_, _, ModKind::Loaded(_, Inline::No { .. }, mod_spans)) = &item.kind && let FileName::Real(real) = cx.sess().source_map().span_to_filename(mod_spans.inner_span) && let Some(local_path) = real.into_local_path() && let Ok(absolute_path) = local_path.canonicalize() diff --git a/src/tools/clippy/clippy_lints/src/empty_line_after.rs b/src/tools/clippy/clippy_lints/src/empty_line_after.rs index 3bd74856165..76e67b1154b 100644 --- a/src/tools/clippy/clippy_lints/src/empty_line_after.rs +++ b/src/tools/clippy/clippy_lints/src/empty_line_after.rs @@ -442,7 +442,7 @@ impl EmptyLineAfter { None => span.shrink_to_lo(), }, mod_items: match kind { - ItemKind::Mod(_, _, ModKind::Loaded(items, _, _, _)) => items + ItemKind::Mod(_, _, ModKind::Loaded(items, _, _)) => items .iter() .filter(|i| !matches!(i.span.ctxt().outer_expn_data().kind, ExpnKind::AstPass(_))) .map(|i| i.id) diff --git a/src/tools/clippy/clippy_lints/src/eta_reduction.rs b/src/tools/clippy/clippy_lints/src/eta_reduction.rs index e467246741c..0eefc2f6109 100644 --- a/src/tools/clippy/clippy_lints/src/eta_reduction.rs +++ b/src/tools/clippy/clippy_lints/src/eta_reduction.rs @@ -231,9 +231,13 @@ fn check_closure<'tcx>(cx: &LateContext<'tcx>, outer_receiver: Option<&Expr<'tcx _ => (), } } + let replace_with = match callee_ty_adjusted.kind() { + ty::FnDef(def, _) => cx.tcx.def_descr(*def), + _ => "function", + }; diag.span_suggestion( expr.span, - "replace the closure with the function itself", + format!("replace the closure with the {replace_with} itself"), snippet, Applicability::MachineApplicable, ); diff --git a/src/tools/clippy/clippy_lints/src/excessive_nesting.rs b/src/tools/clippy/clippy_lints/src/excessive_nesting.rs index 1d3ae894944..5368701c304 100644 --- a/src/tools/clippy/clippy_lints/src/excessive_nesting.rs +++ b/src/tools/clippy/clippy_lints/src/excessive_nesting.rs @@ -164,7 +164,7 @@ impl Visitor<'_> for NestingVisitor<'_, '_> { } match &item.kind { - ItemKind::Trait(_) | ItemKind::Impl(_) | ItemKind::Mod(.., ModKind::Loaded(_, Inline::Yes, _, _)) => { + ItemKind::Trait(_) | ItemKind::Impl(_) | ItemKind::Mod(.., ModKind::Loaded(_, Inline::Yes, _)) => { self.nest_level += 1; if !self.check_indent(item.span, item.id) { diff --git a/src/tools/clippy/clippy_lints/src/from_str_radix_10.rs b/src/tools/clippy/clippy_lints/src/from_str_radix_10.rs index b816963cc82..d5873b3f85a 100644 --- a/src/tools/clippy/clippy_lints/src/from_str_radix_10.rs +++ b/src/tools/clippy/clippy_lints/src/from_str_radix_10.rs @@ -1,6 +1,6 @@ use clippy_utils::diagnostics::span_lint_and_sugg; use clippy_utils::sugg::Sugg; -use clippy_utils::ty::{is_type_diagnostic_item, is_type_lang_item}; +use clippy_utils::ty::is_type_lang_item; use clippy_utils::{is_in_const_context, is_integer_literal, sym}; use rustc_errors::Applicability; use rustc_hir::{Expr, ExprKind, LangItem, PrimTy, QPath, TyKind, def}; @@ -89,5 +89,5 @@ impl<'tcx> LateLintPass<'tcx> for FromStrRadix10 { /// Checks if a Ty is `String` or `&str` fn is_ty_stringish(cx: &LateContext<'_>, ty: Ty<'_>) -> bool { - is_type_lang_item(cx, ty, LangItem::String) || is_type_diagnostic_item(cx, ty, sym::str) + is_type_lang_item(cx, ty, LangItem::String) || ty.peel_refs().is_str() } diff --git a/src/tools/clippy/clippy_lints/src/functions/duplicate_underscore_argument.rs b/src/tools/clippy/clippy_lints/src/functions/duplicate_underscore_argument.rs new file mode 100644 index 00000000000..b15d1b1bb79 --- /dev/null +++ b/src/tools/clippy/clippy_lints/src/functions/duplicate_underscore_argument.rs @@ -0,0 +1,34 @@ +use clippy_utils::diagnostics::span_lint; +use rustc_ast::PatKind; +use rustc_ast::visit::FnKind; +use rustc_data_structures::fx::FxHashMap; +use rustc_lint::EarlyContext; +use rustc_span::Span; + +use super::DUPLICATE_UNDERSCORE_ARGUMENT; + +pub(super) fn check(cx: &EarlyContext<'_>, fn_kind: FnKind<'_>) { + let mut registered_names: FxHashMap<String, Span> = FxHashMap::default(); + + for arg in &fn_kind.decl().inputs { + if let PatKind::Ident(_, ident, None) = arg.pat.kind { + let arg_name = ident.to_string(); + + if let Some(arg_name) = arg_name.strip_prefix('_') { + if let Some(correspondence) = registered_names.get(arg_name) { + span_lint( + cx, + DUPLICATE_UNDERSCORE_ARGUMENT, + *correspondence, + format!( + "`{arg_name}` already exists, having another argument having almost the same \ + name makes code comprehension and documentation more difficult" + ), + ); + } + } else { + registered_names.insert(arg_name, arg.pat.span); + } + } + } +} diff --git a/src/tools/clippy/clippy_lints/src/functions/mod.rs b/src/tools/clippy/clippy_lints/src/functions/mod.rs index 6051dc9479b..ca5ea901814 100644 --- a/src/tools/clippy/clippy_lints/src/functions/mod.rs +++ b/src/tools/clippy/clippy_lints/src/functions/mod.rs @@ -1,3 +1,4 @@ +mod duplicate_underscore_argument; mod impl_trait_in_params; mod misnamed_getters; mod must_use; @@ -11,16 +12,40 @@ mod too_many_lines; use clippy_config::Conf; use clippy_utils::msrvs::Msrv; use clippy_utils::paths::{PathNS, lookup_path_str}; +use rustc_ast::{self as ast, visit}; use rustc_hir as hir; use rustc_hir::intravisit; -use rustc_lint::{LateContext, LateLintPass}; +use rustc_lint::{EarlyContext, EarlyLintPass, LateContext, LateLintPass}; use rustc_middle::ty::TyCtxt; -use rustc_session::impl_lint_pass; +use rustc_session::{declare_lint_pass, impl_lint_pass}; use rustc_span::Span; use rustc_span::def_id::{DefIdSet, LocalDefId}; declare_clippy_lint! { /// ### What it does + /// Checks for function arguments having the similar names + /// differing by an underscore. + /// + /// ### Why is this bad? + /// It affects code readability. + /// + /// ### Example + /// ```no_run + /// fn foo(a: i32, _a: i32) {} + /// ``` + /// + /// Use instead: + /// ```no_run + /// fn bar(a: i32, _b: i32) {} + /// ``` + #[clippy::version = "pre 1.29.0"] + pub DUPLICATE_UNDERSCORE_ARGUMENT, + style, + "function arguments having names which only differ by an underscore" +} + +declare_clippy_lint! { + /// ### What it does /// Checks for functions with too many parameters. /// /// ### Why is this bad? @@ -448,6 +473,14 @@ declare_clippy_lint! { "function signature uses `&Option<T>` instead of `Option<&T>`" } +declare_lint_pass!(EarlyFunctions => [DUPLICATE_UNDERSCORE_ARGUMENT]); + +impl EarlyLintPass for EarlyFunctions { + fn check_fn(&mut self, cx: &EarlyContext<'_>, fn_kind: visit::FnKind<'_>, _: Span, _: ast::NodeId) { + duplicate_underscore_argument::check(cx, fn_kind); + } +} + pub struct Functions { too_many_arguments_threshold: u64, too_many_lines_threshold: u64, @@ -503,7 +536,7 @@ impl<'tcx> LateLintPass<'tcx> for Functions { ) { let hir_id = cx.tcx.local_def_id_to_hir_id(def_id); too_many_arguments::check_fn(cx, kind, decl, span, hir_id, self.too_many_arguments_threshold); - too_many_lines::check_fn(cx, kind, span, body, self.too_many_lines_threshold); + too_many_lines::check_fn(cx, kind, body, span, def_id, self.too_many_lines_threshold); not_unsafe_ptr_arg_deref::check_fn(cx, kind, decl, body, def_id); misnamed_getters::check_fn(cx, kind, decl, body, span); impl_trait_in_params::check_fn(cx, &kind, body, hir_id); diff --git a/src/tools/clippy/clippy_lints/src/functions/renamed_function_params.rs b/src/tools/clippy/clippy_lints/src/functions/renamed_function_params.rs index 0a7c6e9d5f8..f8e8f5544b9 100644 --- a/src/tools/clippy/clippy_lints/src/functions/renamed_function_params.rs +++ b/src/tools/clippy/clippy_lints/src/functions/renamed_function_params.rs @@ -6,6 +6,7 @@ use rustc_hir::{Impl, ImplItem, ImplItemKind, ItemKind, Node, TraitRef}; use rustc_lint::LateContext; use rustc_span::Span; use rustc_span::symbol::{Ident, kw}; +use std::iter; use super::RENAMED_FUNCTION_PARAMS; @@ -58,16 +59,11 @@ impl RenamedFnArgs { let mut renamed: Vec<(Span, String)> = vec![]; debug_assert!(default_idents.size_hint() == current_idents.size_hint()); - while let (Some(default_ident), Some(current_ident)) = (default_idents.next(), current_idents.next()) { + for (default_ident, current_ident) in iter::zip(default_idents, current_idents) { let has_name_to_check = |ident: Option<Ident>| { - if let Some(ident) = ident - && ident.name != kw::Underscore - && !ident.name.as_str().starts_with('_') - { - Some(ident) - } else { - None - } + ident + .filter(|ident| ident.name != kw::Underscore) + .filter(|ident| !ident.name.as_str().starts_with('_')) }; if let Some(default_ident) = has_name_to_check(default_ident) @@ -97,8 +93,7 @@ fn trait_item_def_id_of_impl(cx: &LateContext<'_>, target: OwnerId) -> Option<De } fn is_from_ignored_trait(of_trait: &TraitRef<'_>, ignored_traits: &DefIdSet) -> bool { - let Some(trait_did) = of_trait.trait_def_id() else { - return false; - }; - ignored_traits.contains(&trait_did) + of_trait + .trait_def_id() + .is_some_and(|trait_did| ignored_traits.contains(&trait_did)) } diff --git a/src/tools/clippy/clippy_lints/src/functions/result.rs b/src/tools/clippy/clippy_lints/src/functions/result.rs index bb98ae82611..1f2fce687ed 100644 --- a/src/tools/clippy/clippy_lints/src/functions/result.rs +++ b/src/tools/clippy/clippy_lints/src/functions/result.rs @@ -97,11 +97,7 @@ fn check_result_unit_err(cx: &LateContext<'_>, err_ty: Ty<'_>, fn_header_span: S fn check_result_large_err<'tcx>(cx: &LateContext<'tcx>, err_ty: Ty<'tcx>, hir_ty_span: Span, large_err_threshold: u64) { if let ty::Adt(adt, subst) = err_ty.kind() - && let Some(local_def_id) = err_ty - .ty_adt_def() - .expect("already checked this is adt") - .did() - .as_local() + && let Some(local_def_id) = adt.did().as_local() && let hir::Node::Item(item) = cx.tcx.hir_node_by_def_id(local_def_id) && let hir::ItemKind::Enum(_, _, ref def) = item.kind { diff --git a/src/tools/clippy/clippy_lints/src/functions/too_many_lines.rs b/src/tools/clippy/clippy_lints/src/functions/too_many_lines.rs index 4f90d9655b4..33eede8e65a 100644 --- a/src/tools/clippy/clippy_lints/src/functions/too_many_lines.rs +++ b/src/tools/clippy/clippy_lints/src/functions/too_many_lines.rs @@ -1,6 +1,7 @@ use clippy_utils::diagnostics::span_lint; use clippy_utils::source::SpanRangeExt; use rustc_hir as hir; +use rustc_hir::def_id::LocalDefId; use rustc_hir::intravisit::FnKind; use rustc_lint::{LateContext, LintContext}; use rustc_span::Span; @@ -10,8 +11,9 @@ use super::TOO_MANY_LINES; pub(super) fn check_fn( cx: &LateContext<'_>, kind: FnKind<'_>, - span: Span, body: &hir::Body<'_>, + span: Span, + def_id: LocalDefId, too_many_lines_threshold: u64, ) { // Closures must be contained in a parent body, which will be checked for `too_many_lines`. @@ -74,7 +76,7 @@ pub(super) fn check_fn( span_lint( cx, TOO_MANY_LINES, - span, + cx.tcx.def_span(def_id), format!("this function has too many lines ({line_count}/{too_many_lines_threshold})"), ); } diff --git a/src/tools/clippy/clippy_lints/src/len_zero.rs b/src/tools/clippy/clippy_lints/src/len_zero.rs index 6beddc1be14..57deb011f2b 100644 --- a/src/tools/clippy/clippy_lints/src/len_zero.rs +++ b/src/tools/clippy/clippy_lints/src/len_zero.rs @@ -176,12 +176,11 @@ impl<'tcx> LateLintPass<'tcx> for LenZero { if let ExprKind::Let(lt) = expr.kind && match lt.pat.kind { PatKind::Slice([], None, []) => true, - PatKind::Expr(lit) => match lit.kind { - PatExprKind::Lit { lit, .. } => match lit.node { - LitKind::Str(lit, _) => lit.as_str().is_empty(), - _ => false, - }, - _ => false, + PatKind::Expr(lit) + if let PatExprKind::Lit { lit, .. } = lit.kind + && let LitKind::Str(lit, _) = lit.node => + { + lit.as_str().is_empty() }, _ => false, } @@ -336,33 +335,23 @@ fn extract_future_output<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> Option<& } fn is_first_generic_integral<'tcx>(segment: &'tcx PathSegment<'tcx>) -> bool { - if let Some(generic_args) = segment.args { - if generic_args.args.is_empty() { - return false; - } - let arg = &generic_args.args[0]; - if let GenericArg::Type(rustc_hir::Ty { - kind: TyKind::Path(QPath::Resolved(_, path)), - .. - }) = arg - { - let segments = &path.segments; - let segment = &segments[0]; - let res = &segment.res; - if matches!(res, Res::PrimTy(PrimTy::Uint(_))) || matches!(res, Res::PrimTy(PrimTy::Int(_))) { - return true; - } - } + if let Some(generic_args) = segment.args + && let [GenericArg::Type(ty), ..] = &generic_args.args + && let TyKind::Path(QPath::Resolved(_, path)) = ty.kind + && let [segment, ..] = &path.segments + && matches!(segment.res, Res::PrimTy(PrimTy::Uint(_) | PrimTy::Int(_))) + { + true + } else { + false } - - false } fn parse_len_output<'tcx>(cx: &LateContext<'tcx>, sig: FnSig<'tcx>) -> Option<LenOutput> { if let Some(segment) = extract_future_output(cx, sig.output()) { let res = segment.res; - if matches!(res, Res::PrimTy(PrimTy::Uint(_))) || matches!(res, Res::PrimTy(PrimTy::Int(_))) { + if matches!(res, Res::PrimTy(PrimTy::Uint(_) | PrimTy::Int(_))) { return Some(LenOutput::Integral); } diff --git a/src/tools/clippy/clippy_lints/src/lib.rs b/src/tools/clippy/clippy_lints/src/lib.rs index 844bc1b0e39..d468993e744 100644 --- a/src/tools/clippy/clippy_lints/src/lib.rs +++ b/src/tools/clippy/clippy_lints/src/lib.rs @@ -556,6 +556,7 @@ pub fn register_lint_passes(store: &mut rustc_lint::LintStore, conf: &'static Co store.register_late_pass(|_| Box::new(panicking_overflow_checks::PanickingOverflowChecks)); store.register_late_pass(|_| Box::<new_without_default::NewWithoutDefault>::default()); store.register_late_pass(move |_| Box::new(disallowed_names::DisallowedNames::new(conf))); + store.register_early_pass(|| Box::new(functions::EarlyFunctions)); store.register_late_pass(move |tcx| Box::new(functions::Functions::new(tcx, conf))); store.register_late_pass(move |_| Box::new(doc::Documentation::new(conf))); store.register_early_pass(move || Box::new(doc::Documentation::new(conf))); @@ -600,7 +601,7 @@ pub fn register_lint_passes(store: &mut rustc_lint::LintStore, conf: &'static Co store.register_late_pass(move |_| Box::new(trait_bounds::TraitBounds::new(conf))); store.register_late_pass(|_| Box::new(comparison_chain::ComparisonChain)); store.register_late_pass(move |tcx| Box::new(mut_key::MutableKeyType::new(tcx, conf))); - store.register_early_pass(|| Box::new(reference::DerefAddrOf)); + store.register_late_pass(|_| Box::new(reference::DerefAddrOf)); store.register_early_pass(|| Box::new(double_parens::DoubleParens)); let format_args = format_args_storage.clone(); store.register_late_pass(move |_| Box::new(format_impl::FormatImpl::new(format_args.clone()))); diff --git a/src/tools/clippy/clippy_lints/src/loops/infinite_loop.rs b/src/tools/clippy/clippy_lints/src/loops/infinite_loop.rs index 797ff1f3986..a71e6963f8c 100644 --- a/src/tools/clippy/clippy_lints/src/loops/infinite_loop.rs +++ b/src/tools/clippy/clippy_lints/src/loops/infinite_loop.rs @@ -1,10 +1,11 @@ use clippy_utils::diagnostics::span_lint_and_then; use clippy_utils::{fn_def_id, is_from_proc_macro, is_lint_allowed}; use hir::intravisit::{Visitor, walk_expr}; -use hir::{Expr, ExprKind, FnRetTy, FnSig, Node, TyKind}; use rustc_ast::Label; use rustc_errors::Applicability; -use rustc_hir as hir; +use rustc_hir::{ + self as hir, Closure, ClosureKind, CoroutineDesugaring, CoroutineKind, Expr, ExprKind, FnRetTy, FnSig, Node, TyKind, +}; use rustc_lint::{LateContext, LintContext}; use rustc_span::sym; @@ -29,6 +30,10 @@ pub(super) fn check<'tcx>( return; } + if is_inside_unawaited_async_block(cx, expr) { + return; + } + if expr.span.in_external_macro(cx.sess().source_map()) || is_from_proc_macro(cx, expr) { return; } @@ -60,6 +65,39 @@ pub(super) fn check<'tcx>( } } +/// Check if the given expression is inside an async block that is not being awaited. +/// This helps avoid false positives when async blocks are spawned or assigned to variables. +fn is_inside_unawaited_async_block(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool { + let current_hir_id = expr.hir_id; + for (_, parent_node) in cx.tcx.hir_parent_iter(current_hir_id) { + if let Node::Expr(Expr { + kind: + ExprKind::Closure(Closure { + kind: ClosureKind::Coroutine(CoroutineKind::Desugared(CoroutineDesugaring::Async, _)), + .. + }), + .. + }) = parent_node + { + return !is_async_block_awaited(cx, expr); + } + } + false +} + +fn is_async_block_awaited(cx: &LateContext<'_>, async_expr: &Expr<'_>) -> bool { + for (_, parent_node) in cx.tcx.hir_parent_iter(async_expr.hir_id) { + if let Node::Expr(Expr { + kind: ExprKind::Match(_, _, hir::MatchSource::AwaitDesugar), + .. + }) = parent_node + { + return true; + } + } + false +} + fn get_parent_fn_ret_ty<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'_>) -> Option<FnRetTy<'tcx>> { for (_, parent_node) in cx.tcx.hir_parent_iter(expr.hir_id) { match parent_node { @@ -67,8 +105,8 @@ fn get_parent_fn_ret_ty<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'_>) -> Option // This is because we still need to backtrack one parent node to get the `OpaqueDef` ty. Node::Expr(Expr { kind: - ExprKind::Closure(hir::Closure { - kind: hir::ClosureKind::Coroutine(_), + ExprKind::Closure(Closure { + kind: ClosureKind::Coroutine(_), .. }), .. @@ -90,7 +128,7 @@ fn get_parent_fn_ret_ty<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'_>) -> Option .. }) | Node::Expr(Expr { - kind: ExprKind::Closure(hir::Closure { fn_decl: decl, .. }), + kind: ExprKind::Closure(Closure { fn_decl: decl, .. }), .. }) => return Some(decl.output), _ => (), diff --git a/src/tools/clippy/clippy_lints/src/manual_let_else.rs b/src/tools/clippy/clippy_lints/src/manual_let_else.rs index 1f9a943f13d..5a7967bbf94 100644 --- a/src/tools/clippy/clippy_lints/src/manual_let_else.rs +++ b/src/tools/clippy/clippy_lints/src/manual_let_else.rs @@ -49,7 +49,7 @@ declare_clippy_lint! { } impl<'tcx> QuestionMark { - pub(crate) fn check_manual_let_else(&mut self, cx: &LateContext<'tcx>, stmt: &'tcx Stmt<'tcx>) { + pub(crate) fn check_manual_let_else(&self, cx: &LateContext<'tcx>, stmt: &'tcx Stmt<'tcx>) { if let StmtKind::Let(local) = stmt.kind && let Some(init) = local.init && local.els.is_none() diff --git a/src/tools/clippy/clippy_lints/src/matches/match_bool.rs b/src/tools/clippy/clippy_lints/src/matches/match_bool.rs index b90cf6357c5..a2c8741f4f7 100644 --- a/src/tools/clippy/clippy_lints/src/matches/match_bool.rs +++ b/src/tools/clippy/clippy_lints/src/matches/match_bool.rs @@ -12,7 +12,11 @@ use super::MATCH_BOOL; pub(crate) fn check(cx: &LateContext<'_>, scrutinee: &Expr<'_>, arms: &[Arm<'_>], expr: &Expr<'_>) { // Type of expression is `bool`. - if *cx.typeck_results().expr_ty(scrutinee).kind() == ty::Bool { + if *cx.typeck_results().expr_ty(scrutinee).kind() == ty::Bool + && arms + .iter() + .all(|arm| arm.pat.walk_short(|p| !matches!(p.kind, PatKind::Binding(..)))) + { span_lint_and_then( cx, MATCH_BOOL, diff --git a/src/tools/clippy/clippy_lints/src/matches/match_ref_pats.rs b/src/tools/clippy/clippy_lints/src/matches/match_ref_pats.rs index 5445ee1f042..5934ec40993 100644 --- a/src/tools/clippy/clippy_lints/src/matches/match_ref_pats.rs +++ b/src/tools/clippy/clippy_lints/src/matches/match_ref_pats.rs @@ -17,6 +17,11 @@ where return; } + // `!` cannot be deref-ed + if cx.typeck_results().expr_ty(scrutinee).is_never() { + return; + } + let (first_sugg, msg, title); let ctxt = expr.span.ctxt(); let mut app = Applicability::Unspecified; diff --git a/src/tools/clippy/clippy_lints/src/matches/match_str_case_mismatch.rs b/src/tools/clippy/clippy_lints/src/matches/match_str_case_mismatch.rs index 8b4c1700051..eb8b16e1561 100644 --- a/src/tools/clippy/clippy_lints/src/matches/match_str_case_mismatch.rs +++ b/src/tools/clippy/clippy_lints/src/matches/match_str_case_mismatch.rs @@ -54,7 +54,7 @@ impl<'tcx> Visitor<'tcx> for MatchExprVisitor<'_, 'tcx> { } impl MatchExprVisitor<'_, '_> { - fn case_altered(&mut self, segment_ident: Symbol, receiver: &Expr<'_>) -> ControlFlow<CaseMethod> { + fn case_altered(&self, segment_ident: Symbol, receiver: &Expr<'_>) -> ControlFlow<CaseMethod> { if let Some(case_method) = get_case_method(segment_ident) { let ty = self.cx.typeck_results().expr_ty(receiver).peel_refs(); diff --git a/src/tools/clippy/clippy_lints/src/methods/double_ended_iterator_last.rs b/src/tools/clippy/clippy_lints/src/methods/double_ended_iterator_last.rs index 6d841853fbe..578865c3291 100644 --- a/src/tools/clippy/clippy_lints/src/methods/double_ended_iterator_last.rs +++ b/src/tools/clippy/clippy_lints/src/methods/double_ended_iterator_last.rs @@ -1,6 +1,6 @@ use clippy_utils::diagnostics::span_lint_and_then; use clippy_utils::ty::{has_non_owning_mutable_access, implements_trait}; -use clippy_utils::{is_mutable, is_trait_method, path_to_local, sym}; +use clippy_utils::{is_mutable, is_trait_method, path_to_local_with_projections, sym}; use rustc_errors::Applicability; use rustc_hir::{Expr, Node, PatKind}; use rustc_lint::LateContext; @@ -37,7 +37,7 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &'_ Expr<'_>, self_expr: &'_ Exp // TODO: Change this to lint only when the referred iterator is not used later. If it is used later, // changing to `next_back()` may change its behavior. if !(is_mutable(cx, self_expr) || self_type.is_ref()) { - if let Some(hir_id) = path_to_local(self_expr) + if let Some(hir_id) = path_to_local_with_projections(self_expr) && let Node::Pat(pat) = cx.tcx.hir_node(hir_id) && let PatKind::Binding(_, _, ident, _) = pat.kind { diff --git a/src/tools/clippy/clippy_lints/src/methods/expect_fun_call.rs b/src/tools/clippy/clippy_lints/src/methods/expect_fun_call.rs index 6e5da5bda8c..818e26f8aa1 100644 --- a/src/tools/clippy/clippy_lints/src/methods/expect_fun_call.rs +++ b/src/tools/clippy/clippy_lints/src/methods/expect_fun_call.rs @@ -15,7 +15,6 @@ use std::ops::ControlFlow; use super::EXPECT_FUN_CALL; /// Checks for the `EXPECT_FUN_CALL` lint. -#[allow(clippy::too_many_lines)] pub(super) fn check<'tcx>( cx: &LateContext<'tcx>, format_args_storage: &FormatArgsStorage, @@ -25,43 +24,6 @@ pub(super) fn check<'tcx>( receiver: &'tcx hir::Expr<'tcx>, args: &'tcx [hir::Expr<'tcx>], ) { - // Strip `{}`, `&`, `as_ref()` and `as_str()` off `arg` until we're left with either a `String` or - // `&str` - fn get_arg_root<'a>(cx: &LateContext<'_>, arg: &'a hir::Expr<'a>) -> &'a hir::Expr<'a> { - let mut arg_root = peel_blocks(arg); - loop { - arg_root = match &arg_root.kind { - hir::ExprKind::AddrOf(hir::BorrowKind::Ref, _, expr) => expr, - hir::ExprKind::MethodCall(method_name, receiver, [], ..) => { - if (method_name.ident.name == sym::as_str || method_name.ident.name == sym::as_ref) && { - let arg_type = cx.typeck_results().expr_ty(receiver); - let base_type = arg_type.peel_refs(); - base_type.is_str() || is_type_lang_item(cx, base_type, hir::LangItem::String) - } { - receiver - } else { - break; - } - }, - _ => break, - }; - } - arg_root - } - - fn contains_call<'a>(cx: &LateContext<'a>, arg: &'a hir::Expr<'a>) -> bool { - for_each_expr(cx, arg, |expr| { - if matches!(expr.kind, hir::ExprKind::MethodCall { .. } | hir::ExprKind::Call { .. }) - && !is_inside_always_const_context(cx.tcx, expr.hir_id) - { - ControlFlow::Break(()) - } else { - ControlFlow::Continue(()) - } - }) - .is_some() - } - if name == sym::expect && let [arg] = args && let arg_root = get_arg_root(cx, arg) @@ -114,3 +76,40 @@ pub(super) fn check<'tcx>( ); } } + +/// Strip `{}`, `&`, `as_ref()` and `as_str()` off `arg` until we're left with either a `String` or +/// `&str` +fn get_arg_root<'a>(cx: &LateContext<'_>, arg: &'a hir::Expr<'a>) -> &'a hir::Expr<'a> { + let mut arg_root = peel_blocks(arg); + loop { + arg_root = match &arg_root.kind { + hir::ExprKind::AddrOf(hir::BorrowKind::Ref, _, expr) => expr, + hir::ExprKind::MethodCall(method_name, receiver, [], ..) => { + if (method_name.ident.name == sym::as_str || method_name.ident.name == sym::as_ref) && { + let arg_type = cx.typeck_results().expr_ty(receiver); + let base_type = arg_type.peel_refs(); + base_type.is_str() || is_type_lang_item(cx, base_type, hir::LangItem::String) + } { + receiver + } else { + break; + } + }, + _ => break, + }; + } + arg_root +} + +fn contains_call<'a>(cx: &LateContext<'a>, arg: &'a hir::Expr<'a>) -> bool { + for_each_expr(cx, arg, |expr| { + if matches!(expr.kind, hir::ExprKind::MethodCall { .. } | hir::ExprKind::Call { .. }) + && !is_inside_always_const_context(cx.tcx, expr.hir_id) + { + ControlFlow::Break(()) + } else { + ControlFlow::Continue(()) + } + }) + .is_some() +} diff --git a/src/tools/clippy/clippy_lints/src/methods/filter_map.rs b/src/tools/clippy/clippy_lints/src/methods/filter_map.rs index 4dd54cf1974..5b8457bdd16 100644 --- a/src/tools/clippy/clippy_lints/src/methods/filter_map.rs +++ b/src/tools/clippy/clippy_lints/src/methods/filter_map.rs @@ -106,7 +106,7 @@ enum CheckResult<'tcx> { impl<'tcx> OffendingFilterExpr<'tcx> { pub fn check_map_call( - &mut self, + &self, cx: &LateContext<'tcx>, map_body: &'tcx Body<'tcx>, map_param_id: HirId, @@ -413,7 +413,7 @@ fn is_find_or_filter<'a>( } && let PatKind::Binding(_, filter_param_id, _, None) = filter_pat.kind - && let Some(mut offending_expr) = OffendingFilterExpr::hir(cx, filter_body.value, filter_param_id) + && let Some(offending_expr) = OffendingFilterExpr::hir(cx, filter_body.value, filter_param_id) && let ExprKind::Closure(&Closure { body: map_body_id, .. }) = map_arg.kind && let map_body = cx.tcx.hir_body(map_body_id) diff --git a/src/tools/clippy/clippy_lints/src/methods/filter_next.rs b/src/tools/clippy/clippy_lints/src/methods/filter_next.rs index 6c1a14fc882..72f83b245a0 100644 --- a/src/tools/clippy/clippy_lints/src/methods/filter_next.rs +++ b/src/tools/clippy/clippy_lints/src/methods/filter_next.rs @@ -1,4 +1,5 @@ use clippy_utils::diagnostics::{span_lint, span_lint_and_then}; +use clippy_utils::path_to_local_with_projections; use clippy_utils::source::snippet; use clippy_utils::ty::implements_trait; use rustc_ast::{BindingMode, Mutability}; @@ -9,21 +10,6 @@ use rustc_span::sym; use super::FILTER_NEXT; -fn path_to_local(expr: &hir::Expr<'_>) -> Option<hir::HirId> { - match expr.kind { - hir::ExprKind::Field(f, _) => path_to_local(f), - hir::ExprKind::Index(recv, _, _) => path_to_local(recv), - hir::ExprKind::Path(hir::QPath::Resolved( - _, - hir::Path { - res: rustc_hir::def::Res::Local(local), - .. - }, - )) => Some(*local), - _ => None, - } -} - /// lint use of `filter().next()` for `Iterators` pub(super) fn check<'tcx>( cx: &LateContext<'tcx>, @@ -44,7 +30,7 @@ pub(super) fn check<'tcx>( let iter_snippet = snippet(cx, recv.span, ".."); // add note if not multi-line span_lint_and_then(cx, FILTER_NEXT, expr.span, msg, |diag| { - let (applicability, pat) = if let Some(id) = path_to_local(recv) + let (applicability, pat) = if let Some(id) = path_to_local_with_projections(recv) && let hir::Node::Pat(pat) = cx.tcx.hir_node(id) && let hir::PatKind::Binding(BindingMode(_, Mutability::Not), _, ident, _) = pat.kind { diff --git a/src/tools/clippy/clippy_lints/src/misc_early/mod.rs b/src/tools/clippy/clippy_lints/src/misc_early/mod.rs index f880f1f329f..f988323a8c1 100644 --- a/src/tools/clippy/clippy_lints/src/misc_early/mod.rs +++ b/src/tools/clippy/clippy_lints/src/misc_early/mod.rs @@ -7,12 +7,9 @@ mod unneeded_field_pattern; mod unneeded_wildcard_pattern; mod zero_prefixed_literal; -use clippy_utils::diagnostics::span_lint; use clippy_utils::source::snippet_opt; -use rustc_ast::ast::{Expr, ExprKind, Generics, LitFloatType, LitIntType, LitKind, NodeId, Pat, PatKind}; +use rustc_ast::ast::{Expr, ExprKind, Generics, LitFloatType, LitIntType, LitKind, Pat}; use rustc_ast::token; -use rustc_ast::visit::FnKind; -use rustc_data_structures::fx::FxHashMap; use rustc_lint::{EarlyContext, EarlyLintPass, LintContext}; use rustc_session::declare_lint_pass; use rustc_span::Span; @@ -62,29 +59,6 @@ declare_clippy_lint! { declare_clippy_lint! { /// ### What it does - /// Checks for function arguments having the similar names - /// differing by an underscore. - /// - /// ### Why is this bad? - /// It affects code readability. - /// - /// ### Example - /// ```no_run - /// fn foo(a: i32, _a: i32) {} - /// ``` - /// - /// Use instead: - /// ```no_run - /// fn bar(a: i32, _b: i32) {} - /// ``` - #[clippy::version = "pre 1.29.0"] - pub DUPLICATE_UNDERSCORE_ARGUMENT, - style, - "function arguments having names which only differ by an underscore" -} - -declare_clippy_lint! { - /// ### What it does /// Warns on hexadecimal literals with mixed-case letter /// digits. /// @@ -330,7 +304,6 @@ declare_clippy_lint! { declare_lint_pass!(MiscEarlyLints => [ UNNEEDED_FIELD_PATTERN, - DUPLICATE_UNDERSCORE_ARGUMENT, MIXED_CASE_HEX_LITERALS, UNSEPARATED_LITERAL_SUFFIX, SEPARATED_LITERAL_SUFFIX, @@ -359,32 +332,6 @@ impl EarlyLintPass for MiscEarlyLints { unneeded_wildcard_pattern::check(cx, pat); } - fn check_fn(&mut self, cx: &EarlyContext<'_>, fn_kind: FnKind<'_>, _: Span, _: NodeId) { - let mut registered_names: FxHashMap<String, Span> = FxHashMap::default(); - - for arg in &fn_kind.decl().inputs { - if let PatKind::Ident(_, ident, None) = arg.pat.kind { - let arg_name = ident.to_string(); - - if let Some(arg_name) = arg_name.strip_prefix('_') { - if let Some(correspondence) = registered_names.get(arg_name) { - span_lint( - cx, - DUPLICATE_UNDERSCORE_ARGUMENT, - *correspondence, - format!( - "`{arg_name}` already exists, having another argument having almost the same \ - name makes code comprehension and documentation more difficult" - ), - ); - } - } else { - registered_names.insert(arg_name, arg.pat.span); - } - } - } - } - fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &Expr) { if expr.span.in_external_macro(cx.sess().source_map()) { return; @@ -404,7 +351,7 @@ impl MiscEarlyLints { // See <https://github.com/rust-lang/rust-clippy/issues/4507> for a regression. // FIXME: Find a better way to detect those cases. let lit_snip = match snippet_opt(cx, span) { - Some(snip) if snip.chars().next().is_some_and(|c| c.is_ascii_digit()) => snip, + Some(snip) if snip.starts_with(|c: char| c.is_ascii_digit()) => snip, _ => return, }; diff --git a/src/tools/clippy/clippy_lints/src/mixed_read_write_in_expression.rs b/src/tools/clippy/clippy_lints/src/mixed_read_write_in_expression.rs index a489c0a4a5a..3b44d4b60d3 100644 --- a/src/tools/clippy/clippy_lints/src/mixed_read_write_in_expression.rs +++ b/src/tools/clippy/clippy_lints/src/mixed_read_write_in_expression.rs @@ -134,7 +134,7 @@ impl<'tcx> DivergenceVisitor<'_, 'tcx> { } } - fn report_diverging_sub_expr(&mut self, e: &Expr<'_>) { + fn report_diverging_sub_expr(&self, e: &Expr<'_>) { if let Some(macro_call) = root_macro_call_first_node(self.cx, e) && self.cx.tcx.is_diagnostic_item(sym::todo_macro, macro_call.def_id) { diff --git a/src/tools/clippy/clippy_lints/src/needless_bool.rs b/src/tools/clippy/clippy_lints/src/needless_bool.rs index fa5afcc0087..6ae26156bc4 100644 --- a/src/tools/clippy/clippy_lints/src/needless_bool.rs +++ b/src/tools/clippy/clippy_lints/src/needless_bool.rs @@ -166,7 +166,9 @@ impl<'tcx> LateLintPass<'tcx> for NeedlessBool { applicability, ); }; - if let Some((a, b)) = fetch_bool_block(then).and_then(|a| Some((a, fetch_bool_block(else_expr)?))) { + if let Some(a) = fetch_bool_block(then) + && let Some(b) = fetch_bool_block(else_expr) + { match (a, b) { (RetBool(true), RetBool(true)) | (Bool(true), Bool(true)) => { span_lint( diff --git a/src/tools/clippy/clippy_lints/src/needless_borrows_for_generic_args.rs b/src/tools/clippy/clippy_lints/src/needless_borrows_for_generic_args.rs index 120a4b98a65..c7c4976aeb7 100644 --- a/src/tools/clippy/clippy_lints/src/needless_borrows_for_generic_args.rs +++ b/src/tools/clippy/clippy_lints/src/needless_borrows_for_generic_args.rs @@ -59,7 +59,7 @@ declare_clippy_lint! { pub struct NeedlessBorrowsForGenericArgs<'tcx> { /// Stack of (body owner, `PossibleBorrowerMap`) pairs. Used by - /// `needless_borrow_impl_arg_position` to determine when a borrowed expression can instead + /// [`needless_borrow_count`] to determine when a borrowed expression can instead /// be moved. possible_borrowers: Vec<(LocalDefId, PossibleBorrowerMap<'tcx, 'tcx>)>, diff --git a/src/tools/clippy/clippy_lints/src/no_effect.rs b/src/tools/clippy/clippy_lints/src/no_effect.rs index 72e6503e7e4..0d6666eed45 100644 --- a/src/tools/clippy/clippy_lints/src/no_effect.rs +++ b/src/tools/clippy/clippy_lints/src/no_effect.rs @@ -305,11 +305,12 @@ fn check_unnecessary_operation(cx: &LateContext<'_>, stmt: &Stmt<'_>) { for e in reduced { if let Some(snip) = e.span.get_source_text(cx) { snippet.push_str(&snip); - snippet.push(';'); + snippet.push_str("; "); } else { return; } } + snippet.pop(); // remove the last space span_lint_hir_and_then( cx, UNNECESSARY_OPERATION, diff --git a/src/tools/clippy/clippy_lints/src/non_copy_const.rs b/src/tools/clippy/clippy_lints/src/non_copy_const.rs index 8a5a6f4a4dc..2fffc4244a7 100644 --- a/src/tools/clippy/clippy_lints/src/non_copy_const.rs +++ b/src/tools/clippy/clippy_lints/src/non_copy_const.rs @@ -92,7 +92,7 @@ declare_clippy_lint! { /// ``` #[clippy::version = "pre 1.29.0"] pub DECLARE_INTERIOR_MUTABLE_CONST, - style, + suspicious, "declaring `const` with interior mutability" } diff --git a/src/tools/clippy/clippy_lints/src/non_expressive_names.rs b/src/tools/clippy/clippy_lints/src/non_expressive_names.rs index c5873589b26..1961ac1516d 100644 --- a/src/tools/clippy/clippy_lints/src/non_expressive_names.rs +++ b/src/tools/clippy/clippy_lints/src/non_expressive_names.rs @@ -248,6 +248,11 @@ impl SimilarNamesNameVisitor<'_, '_, '_> { continue; } + // Skip similarity check if both names are exactly 3 characters + if count == 3 && existing_name.len == 3 { + continue; + } + let dissimilar = match existing_name.len.cmp(&count) { Ordering::Greater => existing_name.len - count != 1 || levenstein_not_1(interned_name, existing_str), Ordering::Less => count - existing_name.len != 1 || levenstein_not_1(existing_str, interned_name), diff --git a/src/tools/clippy/clippy_lints/src/only_used_in_recursion.rs b/src/tools/clippy/clippy_lints/src/only_used_in_recursion.rs index ba8f6354d97..a42763172f5 100644 --- a/src/tools/clippy/clippy_lints/src/only_used_in_recursion.rs +++ b/src/tools/clippy/clippy_lints/src/only_used_in_recursion.rs @@ -173,7 +173,7 @@ impl Params { } /// Sets the `apply_lint` flag on each parameter. - fn flag_for_linting(&mut self) { + fn flag_for_linting(&self) { // Stores the list of parameters currently being resolved. Needed to avoid cycles. let mut eval_stack = Vec::new(); for param in &self.params { diff --git a/src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs b/src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs index 466beb04b07..ea5b81aec31 100644 --- a/src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs +++ b/src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs @@ -325,7 +325,7 @@ impl ArithmeticSideEffects { self.issue_lint(cx, expr); } - fn should_skip_expr<'tcx>(&mut self, cx: &LateContext<'tcx>, expr: &hir::Expr<'tcx>) -> bool { + fn should_skip_expr<'tcx>(&self, cx: &LateContext<'tcx>, expr: &hir::Expr<'tcx>) -> bool { is_lint_allowed(cx, ARITHMETIC_SIDE_EFFECTS, expr.hir_id) || self.expr_span.is_some() || self.const_span.is_some_and(|sp| sp.contains(expr.span)) diff --git a/src/tools/clippy/clippy_lints/src/operators/numeric_arithmetic.rs b/src/tools/clippy/clippy_lints/src/operators/numeric_arithmetic.rs index e6be536ca0f..9b1b063c473 100644 --- a/src/tools/clippy/clippy_lints/src/operators/numeric_arithmetic.rs +++ b/src/tools/clippy/clippy_lints/src/operators/numeric_arithmetic.rs @@ -13,7 +13,7 @@ pub struct Context { const_span: Option<Span>, } impl Context { - fn skip_expr(&mut self, e: &hir::Expr<'_>) -> bool { + fn skip_expr(&self, e: &hir::Expr<'_>) -> bool { self.expr_id.is_some() || self.const_span.is_some_and(|span| span.contains(e.span)) } diff --git a/src/tools/clippy/clippy_lints/src/pass_by_ref_or_value.rs b/src/tools/clippy/clippy_lints/src/pass_by_ref_or_value.rs index d7b4a03aa53..1b1e77bbea8 100644 --- a/src/tools/clippy/clippy_lints/src/pass_by_ref_or_value.rs +++ b/src/tools/clippy/clippy_lints/src/pass_by_ref_or_value.rs @@ -120,7 +120,7 @@ impl PassByRefOrValue { } } - fn check_poly_fn(&mut self, cx: &LateContext<'_>, def_id: LocalDefId, decl: &FnDecl<'_>, span: Option<Span>) { + fn check_poly_fn(&self, cx: &LateContext<'_>, def_id: LocalDefId, decl: &FnDecl<'_>, span: Option<Span>) { if self.avoid_breaking_exported_api && cx.effective_visibilities.is_exported(def_id) { return; } diff --git a/src/tools/clippy/clippy_lints/src/ptr.rs b/src/tools/clippy/clippy_lints/src/ptr.rs index b3058c51afd..9eed46460a6 100644 --- a/src/tools/clippy/clippy_lints/src/ptr.rs +++ b/src/tools/clippy/clippy_lints/src/ptr.rs @@ -237,7 +237,7 @@ impl<'tcx> LateLintPass<'tcx> for Ptr { .collect(); let results = check_ptr_arg_usage(cx, body, &lint_args); - for (result, args) in results.iter().zip(lint_args.iter()).filter(|(r, _)| !r.skip) { + for (result, args) in iter::zip(&results, &lint_args).filter(|(r, _)| !r.skip) { span_lint_hir_and_then(cx, PTR_ARG, args.emission_id, args.span, args.build_msg(), |diag| { diag.multipart_suggestion( "change this to", @@ -386,7 +386,6 @@ impl<'tcx> DerefTy<'tcx> { } } -#[expect(clippy::too_many_lines)] fn check_fn_args<'cx, 'tcx: 'cx>( cx: &'cx LateContext<'tcx>, fn_sig: ty::FnSig<'tcx>, @@ -413,13 +412,13 @@ fn check_fn_args<'cx, 'tcx: 'cx>( Some(sym::Vec) => ( [(sym::clone, ".to_owned()")].as_slice(), DerefTy::Slice( - name.args.and_then(|args| args.args.first()).and_then(|arg| { - if let GenericArg::Type(ty) = arg { - Some(ty.span) - } else { - None - } - }), + if let Some(name_args) = name.args + && let [GenericArg::Type(ty), ..] = name_args.args + { + Some(ty.span) + } else { + None + }, args.type_at(0), ), ), @@ -432,33 +431,29 @@ fn check_fn_args<'cx, 'tcx: 'cx>( DerefTy::Path, ), Some(sym::Cow) if mutability == Mutability::Not => { - if let Some((lifetime, ty)) = name.args.and_then(|args| { - if let [GenericArg::Lifetime(lifetime), ty] = args.args { - return Some((lifetime, ty)); - } - None - }) { + if let Some(name_args) = name.args + && let [GenericArg::Lifetime(lifetime), ty] = name_args.args + { if let LifetimeKind::Param(param_def_id) = lifetime.kind && !lifetime.is_anonymous() && fn_sig .output() .walk() - .filter_map(|arg| { - arg.as_region().and_then(|lifetime| match lifetime.kind() { - ty::ReEarlyParam(r) => Some( - cx.tcx - .generics_of(cx.tcx.parent(param_def_id.to_def_id())) - .region_param(r, cx.tcx) - .def_id, - ), - ty::ReBound(_, r) => r.kind.get_id(), - ty::ReLateParam(r) => r.kind.get_id(), - ty::ReStatic - | ty::ReVar(_) - | ty::RePlaceholder(_) - | ty::ReErased - | ty::ReError(_) => None, - }) + .filter_map(ty::GenericArg::as_region) + .filter_map(|lifetime| match lifetime.kind() { + ty::ReEarlyParam(r) => Some( + cx.tcx + .generics_of(cx.tcx.parent(param_def_id.to_def_id())) + .region_param(r, cx.tcx) + .def_id, + ), + ty::ReBound(_, r) => r.kind.get_id(), + ty::ReLateParam(r) => r.kind.get_id(), + ty::ReStatic + | ty::ReVar(_) + | ty::RePlaceholder(_) + | ty::ReErased + | ty::ReError(_) => None, }) .any(|def_id| def_id.as_local().is_some_and(|def_id| def_id == param_def_id)) { @@ -627,12 +622,16 @@ fn check_ptr_arg_usage<'tcx>(cx: &LateContext<'tcx>, body: &Body<'tcx>, args: &[ } } + // If the expression's type gets adjusted down to the deref type, we might as + // well have started with that deref type -- the lint should fire let deref_ty = args.deref_ty.ty(self.cx); let adjusted_ty = self.cx.typeck_results().expr_ty_adjusted(e).peel_refs(); if adjusted_ty == deref_ty { return; } + // If the expression's type is constrained by `dyn Trait`, see if the deref + // type implements the trait(s) as well, and if so, the lint should fire if let ty::Dynamic(preds, ..) = adjusted_ty.kind() && matches_preds(self.cx, deref_ty, preds) { diff --git a/src/tools/clippy/clippy_lints/src/raw_strings.rs b/src/tools/clippy/clippy_lints/src/raw_strings.rs index 6a79cae32a5..943e662479e 100644 --- a/src/tools/clippy/clippy_lints/src/raw_strings.rs +++ b/src/tools/clippy/clippy_lints/src/raw_strings.rs @@ -103,15 +103,7 @@ impl EarlyLintPass for RawStrings { } impl RawStrings { - fn check_raw_string( - &mut self, - cx: &EarlyContext<'_>, - str: &str, - lit_span: Span, - prefix: &str, - max: u8, - descr: &str, - ) { + fn check_raw_string(&self, cx: &EarlyContext<'_>, str: &str, lit_span: Span, prefix: &str, max: u8, descr: &str) { if !str.contains(['\\', '"']) { span_lint_and_then( cx, diff --git a/src/tools/clippy/clippy_lints/src/redundant_pub_crate.rs b/src/tools/clippy/clippy_lints/src/redundant_pub_crate.rs index 902e8af7ec4..0c1c664f111 100644 --- a/src/tools/clippy/clippy_lints/src/redundant_pub_crate.rs +++ b/src/tools/clippy/clippy_lints/src/redundant_pub_crate.rs @@ -88,8 +88,7 @@ impl<'tcx> LateLintPass<'tcx> for RedundantPubCrate { // We ignore macro exports. And `ListStem` uses, which aren't interesting. fn is_ignorable_export<'tcx>(item: &'tcx Item<'tcx>) -> bool { if let ItemKind::Use(path, kind) = item.kind { - let ignore = matches!(path.res.macro_ns, Some(Res::Def(DefKind::Macro(_), _))) - || kind == UseKind::ListStem; + let ignore = matches!(path.res.macro_ns, Some(Res::Def(DefKind::Macro(_), _))) || kind == UseKind::ListStem; if ignore { return true; } diff --git a/src/tools/clippy/clippy_lints/src/reference.rs b/src/tools/clippy/clippy_lints/src/reference.rs index 4bff37216ed..3bbcad12a31 100644 --- a/src/tools/clippy/clippy_lints/src/reference.rs +++ b/src/tools/clippy/clippy_lints/src/reference.rs @@ -1,10 +1,11 @@ use clippy_utils::diagnostics::span_lint_and_sugg; -use clippy_utils::source::{SpanRangeExt, snippet_with_applicability}; -use rustc_ast::ast::{Expr, ExprKind, Mutability, UnOp}; +use clippy_utils::source::snippet; +use clippy_utils::sugg::{Sugg, has_enclosing_paren}; +use clippy_utils::ty::adjust_derefs_manually_drop; use rustc_errors::Applicability; -use rustc_lint::{EarlyContext, EarlyLintPass}; +use rustc_hir::{Expr, ExprKind, HirId, Node, UnOp}; +use rustc_lint::{LateContext, LateLintPass}; use rustc_session::declare_lint_pass; -use rustc_span::{BytePos, Span}; declare_clippy_lint! { /// ### What it does @@ -37,17 +38,12 @@ declare_clippy_lint! { declare_lint_pass!(DerefAddrOf => [DEREF_ADDROF]); -fn without_parens(mut e: &Expr) -> &Expr { - while let ExprKind::Paren(ref child_e) = e.kind { - e = child_e; - } - e -} - -impl EarlyLintPass for DerefAddrOf { - fn check_expr(&mut self, cx: &EarlyContext<'_>, e: &Expr) { - if let ExprKind::Unary(UnOp::Deref, ref deref_target) = e.kind - && let ExprKind::AddrOf(_, ref mutability, ref addrof_target) = without_parens(deref_target).kind +impl LateLintPass<'_> for DerefAddrOf { + fn check_expr(&mut self, cx: &LateContext<'_>, e: &Expr<'_>) { + if !e.span.from_expansion() + && let ExprKind::Unary(UnOp::Deref, deref_target) = e.kind + && !deref_target.span.from_expansion() + && let ExprKind::AddrOf(_, _, addrof_target) = deref_target.kind // NOTE(tesuji): `*&` forces rustc to const-promote the array to `.rodata` section. // See #12854 for details. && !matches!(addrof_target.kind, ExprKind::Array(_)) @@ -55,57 +51,82 @@ impl EarlyLintPass for DerefAddrOf { && !addrof_target.span.from_expansion() { let mut applicability = Applicability::MachineApplicable; - let sugg = if e.span.from_expansion() { - if let Some(macro_source) = e.span.get_source_text(cx) { - // Remove leading whitespace from the given span - // e.g: ` $visitor` turns into `$visitor` - let trim_leading_whitespaces = |span: Span| { - span.get_source_text(cx) - .and_then(|snip| { - #[expect(clippy::cast_possible_truncation)] - snip.find(|c: char| !c.is_whitespace()) - .map(|pos| span.lo() + BytePos(pos as u32)) - }) - .map_or(span, |start_no_whitespace| e.span.with_lo(start_no_whitespace)) - }; + let mut sugg = || Sugg::hir_with_applicability(cx, addrof_target, "_", &mut applicability); - let mut generate_snippet = |pattern: &str| { - #[expect(clippy::cast_possible_truncation)] - macro_source.rfind(pattern).map(|pattern_pos| { - let rpos = pattern_pos + pattern.len(); - let span_after_ref = e.span.with_lo(BytePos(e.span.lo().0 + rpos as u32)); - let span = trim_leading_whitespaces(span_after_ref); - snippet_with_applicability(cx, span, "_", &mut applicability) - }) - }; + // If this expression is an explicit `DerefMut` of a `ManuallyDrop` reached through a + // union, we may remove the reference if we are at the point where the implicit + // dereference would take place. Otherwise, we should not lint. + let sugg = match is_manually_drop_through_union(cx, e.hir_id, addrof_target) { + ManuallyDropThroughUnion::Directly => sugg().deref(), + ManuallyDropThroughUnion::Indirect => return, + ManuallyDropThroughUnion::No => sugg(), + }; + + let sugg = if has_enclosing_paren(snippet(cx, e.span, "")) { + sugg.maybe_paren() + } else { + sugg + }; + + span_lint_and_sugg( + cx, + DEREF_ADDROF, + e.span, + "immediately dereferencing a reference", + "try", + sugg.to_string(), + applicability, + ); + } + } +} + +/// Is this a `ManuallyDrop` reached through a union, and when is `DerefMut` called on it? +enum ManuallyDropThroughUnion { + /// `ManuallyDrop` reached through a union and immediately explicitely dereferenced + Directly, + /// `ManuallyDrop` reached through a union, and dereferenced later on + Indirect, + /// Any other situation + No, +} - if *mutability == Mutability::Mut { - generate_snippet("mut") +/// Check if `addrof_target` is part of an access to a `ManuallyDrop` entity reached through a +/// union, and when it is dereferenced using `DerefMut` starting from `expr_id` and going up. +fn is_manually_drop_through_union( + cx: &LateContext<'_>, + expr_id: HirId, + addrof_target: &Expr<'_>, +) -> ManuallyDropThroughUnion { + if is_reached_through_union(cx, addrof_target) { + let typeck = cx.typeck_results(); + for (idx, id) in std::iter::once(expr_id) + .chain(cx.tcx.hir_parent_id_iter(expr_id)) + .enumerate() + { + if let Node::Expr(expr) = cx.tcx.hir_node(id) { + if adjust_derefs_manually_drop(typeck.expr_adjustments(expr), typeck.expr_ty(expr)) { + return if idx == 0 { + ManuallyDropThroughUnion::Directly } else { - generate_snippet("&") - } - } else { - Some(snippet_with_applicability(cx, e.span, "_", &mut applicability)) + ManuallyDropThroughUnion::Indirect + }; } } else { - Some(snippet_with_applicability( - cx, - addrof_target.span, - "_", - &mut applicability, - )) - }; - if let Some(sugg) = sugg { - span_lint_and_sugg( - cx, - DEREF_ADDROF, - e.span, - "immediately dereferencing a reference", - "try", - sugg.to_string(), - applicability, - ); + break; } } } + ManuallyDropThroughUnion::No +} + +/// Checks whether `expr` denotes an object reached through a union +fn is_reached_through_union(cx: &LateContext<'_>, mut expr: &Expr<'_>) -> bool { + while let ExprKind::Field(parent, _) | ExprKind::Index(parent, _, _) = expr.kind { + if cx.typeck_results().expr_ty_adjusted(parent).is_union() { + return true; + } + expr = parent; + } + false } diff --git a/src/tools/clippy/clippy_lints/src/swap.rs b/src/tools/clippy/clippy_lints/src/swap.rs index 5ecbb56925e..76ab3cdae22 100644 --- a/src/tools/clippy/clippy_lints/src/swap.rs +++ b/src/tools/clippy/clippy_lints/src/swap.rs @@ -380,7 +380,7 @@ impl<'tcx> IndexBinding<'_, 'tcx> { } } - fn is_used_other_than_swapping(&mut self, idx_ident: Ident) -> bool { + fn is_used_other_than_swapping(&self, idx_ident: Ident) -> bool { if Self::is_used_slice_indexed(self.swap1_idx, idx_ident) || Self::is_used_slice_indexed(self.swap2_idx, idx_ident) { @@ -389,7 +389,7 @@ impl<'tcx> IndexBinding<'_, 'tcx> { self.is_used_after_swap(idx_ident) } - fn is_used_after_swap(&mut self, idx_ident: Ident) -> bool { + fn is_used_after_swap(&self, idx_ident: Ident) -> bool { let mut v = IndexBindingVisitor { idx: idx_ident, suggest_span: self.suggest_span, diff --git a/src/tools/clippy/clippy_lints/src/transmute/eager_transmute.rs b/src/tools/clippy/clippy_lints/src/transmute/eager_transmute.rs index 535c044f49e..97e68b3df94 100644 --- a/src/tools/clippy/clippy_lints/src/transmute/eager_transmute.rs +++ b/src/tools/clippy/clippy_lints/src/transmute/eager_transmute.rs @@ -1,5 +1,5 @@ use clippy_utils::diagnostics::span_lint_and_then; -use clippy_utils::{eq_expr_value, path_to_local, sym}; +use clippy_utils::{eq_expr_value, path_to_local_with_projections, sym}; use rustc_abi::WrappingRange; use rustc_errors::Applicability; use rustc_hir::{Expr, ExprKind, Node}; @@ -63,11 +63,7 @@ fn binops_with_local(cx: &LateContext<'_>, local_expr: &Expr<'_>, expr: &Expr<'_ /// Checks if an expression is a path to a local variable (with optional projections), e.g. /// `x.field[0].field2` would return true. fn is_local_with_projections(expr: &Expr<'_>) -> bool { - match expr.kind { - ExprKind::Path(_) => path_to_local(expr).is_some(), - ExprKind::Field(expr, _) | ExprKind::Index(expr, ..) => is_local_with_projections(expr), - _ => false, - } + path_to_local_with_projections(expr).is_some() } pub(super) fn check<'tcx>( diff --git a/src/tools/clippy/clippy_lints/src/transmute/mod.rs b/src/tools/clippy/clippy_lints/src/transmute/mod.rs index d5112e2c3f9..1c7bb4314dd 100644 --- a/src/tools/clippy/clippy_lints/src/transmute/mod.rs +++ b/src/tools/clippy/clippy_lints/src/transmute/mod.rs @@ -105,7 +105,7 @@ declare_clippy_lint! { /// ``` #[clippy::version = "pre 1.29.0"] pub CROSSPOINTER_TRANSMUTE, - complexity, + suspicious, "transmutes that have to or from types that are a pointer to the other" } diff --git a/src/tools/clippy/clippy_lints/src/transmute/useless_transmute.rs b/src/tools/clippy/clippy_lints/src/transmute/useless_transmute.rs index ec5fb2793f9..b898920baef 100644 --- a/src/tools/clippy/clippy_lints/src/transmute/useless_transmute.rs +++ b/src/tools/clippy/clippy_lints/src/transmute/useless_transmute.rs @@ -49,17 +49,7 @@ pub(super) fn check<'tcx>( true }, (ty::Int(_) | ty::Uint(_), ty::RawPtr(_, _)) => { - span_lint_and_then( - cx, - USELESS_TRANSMUTE, - e.span, - "transmute from an integer to a pointer", - |diag| { - if let Some(arg) = sugg::Sugg::hir_opt(cx, arg) { - diag.span_suggestion(e.span, "try", arg.as_ty(to_ty.to_string()), Applicability::Unspecified); - } - }, - ); + // Handled by the upstream rustc `integer_to_ptr_transmutes` lint true }, _ => false, diff --git a/src/tools/clippy/clippy_lints/src/undocumented_unsafe_blocks.rs b/src/tools/clippy/clippy_lints/src/undocumented_unsafe_blocks.rs index 1c52de52619..ba0d4de5f3b 100644 --- a/src/tools/clippy/clippy_lints/src/undocumented_unsafe_blocks.rs +++ b/src/tools/clippy/clippy_lints/src/undocumented_unsafe_blocks.rs @@ -202,79 +202,41 @@ impl<'tcx> LateLintPass<'tcx> for UndocumentedUnsafeBlocks { }; let item_has_safety_comment = item_has_safety_comment(cx, item); - match (&item.kind, item_has_safety_comment) { - // lint unsafe impl without safety comment - (ItemKind::Impl(Impl { of_trait: Some(of_trait), .. }), HasSafetyComment::No) if of_trait.safety.is_unsafe() => { - if !is_lint_allowed(cx, UNDOCUMENTED_UNSAFE_BLOCKS, item.hir_id()) - && !is_unsafe_from_proc_macro(cx, item.span) - { - let source_map = cx.tcx.sess.source_map(); - let span = if source_map.is_multiline(item.span) { - source_map.span_until_char(item.span, '\n') - } else { - item.span - }; - - #[expect(clippy::collapsible_span_lint_calls, reason = "rust-clippy#7797")] - span_lint_and_then( - cx, - UNDOCUMENTED_UNSAFE_BLOCKS, - span, - "unsafe impl missing a safety comment", - |diag| { - diag.help("consider adding a safety comment on the preceding line"); - }, - ); - } - }, - // lint safe impl with unnecessary safety comment - (ItemKind::Impl(Impl { of_trait: Some(of_trait), .. }), HasSafetyComment::Yes(pos)) if of_trait.safety.is_safe() => { - if !is_lint_allowed(cx, UNNECESSARY_SAFETY_COMMENT, item.hir_id()) { - let (span, help_span) = mk_spans(pos); - - span_lint_and_then( - cx, - UNNECESSARY_SAFETY_COMMENT, - span, - "impl has unnecessary safety comment", - |diag| { - diag.span_help(help_span, "consider removing the safety comment"); - }, - ); - } - }, - (ItemKind::Impl(_), _) => {}, - // const and static items only need a safety comment if their body is an unsafe block, lint otherwise - (&ItemKind::Const(.., body) | &ItemKind::Static(.., body), HasSafetyComment::Yes(pos)) => { - if !is_lint_allowed(cx, UNNECESSARY_SAFETY_COMMENT, body.hir_id) { - let body = cx.tcx.hir_body(body); - if !matches!( - body.value.kind, hir::ExprKind::Block(block, _) - if block.rules == BlockCheckMode::UnsafeBlock(UnsafeSource::UserProvided) - ) { - let (span, help_span) = mk_spans(pos); - - span_lint_and_then( - cx, - UNNECESSARY_SAFETY_COMMENT, - span, - format!( - "{} has unnecessary safety comment", - cx.tcx.def_descr(item.owner_id.to_def_id()), - ), - |diag| { - diag.span_help(help_span, "consider removing the safety comment"); - }, - ); - } - } - }, - // Aside from unsafe impls and consts/statics with an unsafe block, items in general - // do not have safety invariants that need to be documented, so lint those. - (_, HasSafetyComment::Yes(pos)) => { - if !is_lint_allowed(cx, UNNECESSARY_SAFETY_COMMENT, item.hir_id()) { - let (span, help_span) = mk_spans(pos); + match item_has_safety_comment { + HasSafetyComment::Yes(pos) => check_has_safety_comment(cx, item, mk_spans(pos)), + HasSafetyComment::No => check_has_no_safety_comment(cx, item), + HasSafetyComment::Maybe => {}, + } + } +} +fn check_has_safety_comment(cx: &LateContext<'_>, item: &hir::Item<'_>, (span, help_span): (Span, Span)) { + match &item.kind { + ItemKind::Impl(Impl { + of_trait: Some(of_trait), + .. + }) if of_trait.safety.is_safe() => { + if !is_lint_allowed(cx, UNNECESSARY_SAFETY_COMMENT, item.hir_id()) { + span_lint_and_then( + cx, + UNNECESSARY_SAFETY_COMMENT, + span, + "impl has unnecessary safety comment", + |diag| { + diag.span_help(help_span, "consider removing the safety comment"); + }, + ); + } + }, + ItemKind::Impl(_) => {}, + // const and static items only need a safety comment if their body is an unsafe block, lint otherwise + &ItemKind::Const(.., body) | &ItemKind::Static(.., body) => { + if !is_lint_allowed(cx, UNNECESSARY_SAFETY_COMMENT, body.hir_id) { + let body = cx.tcx.hir_body(body); + if !matches!( + body.value.kind, hir::ExprKind::Block(block, _) + if block.rules == BlockCheckMode::UnsafeBlock(UnsafeSource::UserProvided) + ) { span_lint_and_then( cx, UNNECESSARY_SAFETY_COMMENT, @@ -288,12 +250,56 @@ impl<'tcx> LateLintPass<'tcx> for UndocumentedUnsafeBlocks { }, ); } - }, - _ => (), - } + } + }, + // Aside from unsafe impls and consts/statics with an unsafe block, items in general + // do not have safety invariants that need to be documented, so lint those. + _ => { + if !is_lint_allowed(cx, UNNECESSARY_SAFETY_COMMENT, item.hir_id()) { + span_lint_and_then( + cx, + UNNECESSARY_SAFETY_COMMENT, + span, + format!( + "{} has unnecessary safety comment", + cx.tcx.def_descr(item.owner_id.to_def_id()), + ), + |diag| { + diag.span_help(help_span, "consider removing the safety comment"); + }, + ); + } + }, } } +fn check_has_no_safety_comment(cx: &LateContext<'_>, item: &hir::Item<'_>) { + if let ItemKind::Impl(Impl { + of_trait: Some(of_trait), + .. + }) = item.kind + && of_trait.safety.is_unsafe() + && !is_lint_allowed(cx, UNDOCUMENTED_UNSAFE_BLOCKS, item.hir_id()) + && !is_unsafe_from_proc_macro(cx, item.span) + { + let source_map = cx.tcx.sess.source_map(); + let span = if source_map.is_multiline(item.span) { + source_map.span_until_char(item.span, '\n') + } else { + item.span + }; + #[expect(clippy::collapsible_span_lint_calls, reason = "rust-clippy#7797")] + span_lint_and_then( + cx, + UNDOCUMENTED_UNSAFE_BLOCKS, + span, + "unsafe impl missing a safety comment", + |diag| { + diag.help("consider adding a safety comment on the preceding line"); + }, + ); + } +} fn expr_has_unnecessary_safety_comment<'tcx>( cx: &LateContext<'tcx>, expr: &'tcx hir::Expr<'tcx>, @@ -505,7 +511,8 @@ fn item_has_safety_comment(cx: &LateContext<'_>, item: &hir::Item<'_>) -> HasSaf }, Node::Stmt(stmt) => { if let Node::Block(block) = cx.tcx.parent_hir_node(stmt.hir_id) { - walk_span_to_context(block.span, SyntaxContext::root()).map(Span::lo) + walk_span_to_context(block.span, SyntaxContext::root()) + .map(|sp| CommentStartBeforeItem::Offset(sp.lo())) } else { // Problem getting the parent node. Pretend a comment was found. return HasSafetyComment::Maybe; @@ -518,10 +525,12 @@ fn item_has_safety_comment(cx: &LateContext<'_>, item: &hir::Item<'_>) -> HasSaf }; let source_map = cx.sess().source_map(); + // If the comment is in the first line of the file, there is no preceding line if let Some(comment_start) = comment_start && let Ok(unsafe_line) = source_map.lookup_line(item.span.lo()) - && let Ok(comment_start_line) = source_map.lookup_line(comment_start) - && Arc::ptr_eq(&unsafe_line.sf, &comment_start_line.sf) + && let Ok(comment_start_line) = source_map.lookup_line(comment_start.into()) + && let include_first_line_of_file = matches!(comment_start, CommentStartBeforeItem::Start) + && (include_first_line_of_file || Arc::ptr_eq(&unsafe_line.sf, &comment_start_line.sf)) && let Some(src) = unsafe_line.sf.src.as_deref() { return if comment_start_line.line >= unsafe_line.line { @@ -529,7 +538,8 @@ fn item_has_safety_comment(cx: &LateContext<'_>, item: &hir::Item<'_>) -> HasSaf } else { match text_has_safety_comment( src, - &unsafe_line.sf.lines()[comment_start_line.line + 1..=unsafe_line.line], + &unsafe_line.sf.lines() + [(comment_start_line.line + usize::from(!include_first_line_of_file))..=unsafe_line.line], unsafe_line.sf.start_pos, ) { Some(b) => HasSafetyComment::Yes(b), @@ -592,12 +602,27 @@ fn stmt_has_safety_comment( HasSafetyComment::Maybe } +#[derive(Clone, Copy, Debug)] +enum CommentStartBeforeItem { + Offset(BytePos), + Start, +} + +impl From<CommentStartBeforeItem> for BytePos { + fn from(value: CommentStartBeforeItem) -> Self { + match value { + CommentStartBeforeItem::Offset(loc) => loc, + CommentStartBeforeItem::Start => BytePos(0), + } + } +} + fn comment_start_before_item_in_mod( cx: &LateContext<'_>, parent_mod: &hir::Mod<'_>, parent_mod_span: Span, item: &hir::Item<'_>, -) -> Option<BytePos> { +) -> Option<CommentStartBeforeItem> { parent_mod.item_ids.iter().enumerate().find_map(|(idx, item_id)| { if *item_id == item.item_id() { if idx == 0 { @@ -605,15 +630,18 @@ fn comment_start_before_item_in_mod( // ^------------------------------------------^ returns the start of this span // ^---------------------^ finally checks comments in this range if let Some(sp) = walk_span_to_context(parent_mod_span, SyntaxContext::root()) { - return Some(sp.lo()); + return Some(CommentStartBeforeItem::Offset(sp.lo())); } } else { // some_item /* comment */ unsafe impl T {} // ^-------^ returns the end of this span // ^---------------^ finally checks comments in this range let prev_item = cx.tcx.hir_item(parent_mod.item_ids[idx - 1]); + if prev_item.span.is_dummy() { + return Some(CommentStartBeforeItem::Start); + } if let Some(sp) = walk_span_to_context(prev_item.span, SyntaxContext::root()) { - return Some(sp.hi()); + return Some(CommentStartBeforeItem::Offset(sp.hi())); } } } @@ -668,7 +696,7 @@ fn get_body_search_span(cx: &LateContext<'_>) -> Option<Span> { }) => { return maybe_mod_item .and_then(|item| comment_start_before_item_in_mod(cx, mod_, *span, &item)) - .map(|comment_start| mod_.spans.inner_span.with_lo(comment_start)) + .map(|comment_start| mod_.spans.inner_span.with_lo(comment_start.into())) .or(Some(*span)); }, node if let Some((span, _)) = span_and_hid_of_item_alike_node(&node) diff --git a/src/tools/clippy/clippy_lints/src/unnecessary_box_returns.rs b/src/tools/clippy/clippy_lints/src/unnecessary_box_returns.rs index 2b7d3dc0c90..6e3e41f08ee 100644 --- a/src/tools/clippy/clippy_lints/src/unnecessary_box_returns.rs +++ b/src/tools/clippy/clippy_lints/src/unnecessary_box_returns.rs @@ -55,7 +55,7 @@ impl UnnecessaryBoxReturns { } } - fn check_fn_item(&mut self, cx: &LateContext<'_>, decl: &FnDecl<'_>, def_id: LocalDefId, name: Symbol) { + fn check_fn_item(&self, cx: &LateContext<'_>, decl: &FnDecl<'_>, def_id: LocalDefId, name: Symbol) { // we don't want to tell someone to break an exported function if they ask us not to if self.avoid_breaking_exported_api && cx.effective_visibilities.is_exported(def_id) { return; diff --git a/src/tools/clippy/clippy_lints/src/unnecessary_semicolon.rs b/src/tools/clippy/clippy_lints/src/unnecessary_semicolon.rs index f1d1a76d0c2..76e24b6bf80 100644 --- a/src/tools/clippy/clippy_lints/src/unnecessary_semicolon.rs +++ b/src/tools/clippy/clippy_lints/src/unnecessary_semicolon.rs @@ -86,7 +86,9 @@ impl<'tcx> LateLintPass<'tcx> for UnnecessarySemicolon { expr.kind, ExprKind::If(..) | ExprKind::Match(_, _, MatchSource::Normal | MatchSource::Postfix) ) - && cx.typeck_results().expr_ty(expr) == cx.tcx.types.unit + && cx.typeck_results().expr_ty(expr).is_unit() + // if a stmt has attrs, then turning it into an expr will break the code, since attrs aren't allowed on exprs + && cx.tcx.hir_attrs(stmt.hir_id).is_empty() { if let Some(block_is_unit) = self.is_last_in_block(stmt) { if cx.tcx.sess.edition() <= Edition2021 && leaks_droppable_temporary_with_limited_lifetime(cx, expr) { diff --git a/src/tools/clippy/clippy_lints/src/unnested_or_patterns.rs b/src/tools/clippy/clippy_lints/src/unnested_or_patterns.rs index e9ad578da2f..8b278d98a30 100644 --- a/src/tools/clippy/clippy_lints/src/unnested_or_patterns.rs +++ b/src/tools/clippy/clippy_lints/src/unnested_or_patterns.rs @@ -284,14 +284,14 @@ fn transform_with_focus_on_idx(alternatives: &mut ThinVec<Box<Pat>>, focus_idx: |k, ps1, idx| matches!( k, TupleStruct(qself2, path2, ps2) - if eq_maybe_qself(qself1.as_ref(), qself2.as_ref()) + if eq_maybe_qself(qself1.as_deref(), qself2.as_deref()) && eq_path(path1, path2) && eq_pre_post(ps1, ps2, idx) ), |k| always_pat!(k, TupleStruct(_, _, ps) => ps), ), // Transform a record pattern `S { fp_0, ..., fp_n }`. Struct(qself1, path1, fps1, rest1) => { - extend_with_struct_pat(qself1.as_ref(), path1, fps1, *rest1, start, alternatives) + extend_with_struct_pat(qself1.as_deref(), path1, fps1, *rest1, start, alternatives) }, }; @@ -304,7 +304,7 @@ fn transform_with_focus_on_idx(alternatives: &mut ThinVec<Box<Pat>>, focus_idx: /// So when we fixate on some `ident_k: pat_k`, we try to find `ident_k` in the other pattern /// and check that all `fp_i` where `i ∈ ((0...n) \ k)` between two patterns are equal. fn extend_with_struct_pat( - qself1: Option<&Box<ast::QSelf>>, + qself1: Option<&ast::QSelf>, path1: &ast::Path, fps1: &mut [ast::PatField], rest1: ast::PatFieldsRest, @@ -319,7 +319,7 @@ fn extend_with_struct_pat( |k| { matches!(k, Struct(qself2, path2, fps2, rest2) if rest1 == *rest2 // If one struct pattern has `..` so must the other. - && eq_maybe_qself(qself1, qself2.as_ref()) + && eq_maybe_qself(qself1, qself2.as_deref()) && eq_path(path1, path2) && fps1.len() == fps2.len() && fps1.iter().enumerate().all(|(idx_1, fp1)| { diff --git a/src/tools/clippy/clippy_lints/src/unwrap.rs b/src/tools/clippy/clippy_lints/src/unwrap.rs index c641d4e55b9..490da4f1e03 100644 --- a/src/tools/clippy/clippy_lints/src/unwrap.rs +++ b/src/tools/clippy/clippy_lints/src/unwrap.rs @@ -141,43 +141,45 @@ fn collect_unwrap_info<'tcx>( is_type_diagnostic_item(cx, ty, sym::Result) && matches!(method_name, sym::is_err | sym::is_ok) } - if let ExprKind::Binary(op, left, right) = &expr.kind { - match (invert, op.node) { - (false, BinOpKind::And | BinOpKind::BitAnd) | (true, BinOpKind::Or | BinOpKind::BitOr) => { - let mut unwrap_info = collect_unwrap_info(cx, if_expr, left, branch, invert, false); - unwrap_info.append(&mut collect_unwrap_info(cx, if_expr, right, branch, invert, false)); - return unwrap_info; - }, - _ => (), - } - } else if let ExprKind::Unary(UnOp::Not, expr) = &expr.kind { - return collect_unwrap_info(cx, if_expr, expr, branch, !invert, false); - } else if let ExprKind::MethodCall(method_name, receiver, [], _) = &expr.kind - && let Some(local_id) = path_to_local(receiver) - && let ty = cx.typeck_results().expr_ty(receiver) - && let name = method_name.ident.name - && (is_relevant_option_call(cx, ty, name) || is_relevant_result_call(cx, ty, name)) - { - let unwrappable = matches!(name, sym::is_some | sym::is_ok); - let safe_to_unwrap = unwrappable != invert; - let kind = if is_type_diagnostic_item(cx, ty, sym::Option) { - UnwrappableKind::Option - } else { - UnwrappableKind::Result - }; + match expr.kind { + ExprKind::Binary(op, left, right) + if matches!( + (invert, op.node), + (false, BinOpKind::And | BinOpKind::BitAnd) | (true, BinOpKind::Or | BinOpKind::BitOr) + ) => + { + let mut unwrap_info = collect_unwrap_info(cx, if_expr, left, branch, invert, false); + unwrap_info.extend(collect_unwrap_info(cx, if_expr, right, branch, invert, false)); + unwrap_info + }, + ExprKind::Unary(UnOp::Not, expr) => collect_unwrap_info(cx, if_expr, expr, branch, !invert, false), + ExprKind::MethodCall(method_name, receiver, [], _) + if let Some(local_id) = path_to_local(receiver) + && let ty = cx.typeck_results().expr_ty(receiver) + && let name = method_name.ident.name + && (is_relevant_option_call(cx, ty, name) || is_relevant_result_call(cx, ty, name)) => + { + let unwrappable = matches!(name, sym::is_some | sym::is_ok); + let safe_to_unwrap = unwrappable != invert; + let kind = if is_type_diagnostic_item(cx, ty, sym::Option) { + UnwrappableKind::Option + } else { + UnwrappableKind::Result + }; - return vec![UnwrapInfo { - local_id, - if_expr, - check: expr, - check_name: name, - branch, - safe_to_unwrap, - kind, - is_entire_condition, - }]; + vec![UnwrapInfo { + local_id, + if_expr, + check: expr, + check_name: name, + branch, + safe_to_unwrap, + kind, + is_entire_condition, + }] + }, + _ => vec![], } - Vec::new() } /// A HIR visitor delegate that checks if a local variable of type `Option` or `Result` is mutated, diff --git a/src/tools/clippy/clippy_lints/src/zero_sized_map_values.rs b/src/tools/clippy/clippy_lints/src/zero_sized_map_values.rs index 1550872bca2..f1572fd65bb 100644 --- a/src/tools/clippy/clippy_lints/src/zero_sized_map_values.rs +++ b/src/tools/clippy/clippy_lints/src/zero_sized_map_values.rs @@ -56,6 +56,9 @@ impl LateLintPass<'_> for ZeroSizedMapValues { // cannot check if it is `Sized` or not, such as an incomplete associated type in a // type alias. See an example in `issue14822()` of `tests/ui/zero_sized_hashmap_values.rs`. && !ty.has_non_region_param() + // Ensure that no region escapes to avoid an assertion error when computing the layout. + // See an example in `issue15429()` of `tests/ui/zero_sized_hashmap_values.rs`. + && !ty.has_escaping_bound_vars() && let Ok(layout) = cx.layout_of(ty) && layout.is_zst() { diff --git a/src/tools/clippy/clippy_lints_internal/src/derive_deserialize_allowing_unknown.rs b/src/tools/clippy/clippy_lints_internal/src/derive_deserialize_allowing_unknown.rs index 5e6a40ac2eb..0fd1e11b033 100644 --- a/src/tools/clippy/clippy_lints_internal/src/derive_deserialize_allowing_unknown.rs +++ b/src/tools/clippy/clippy_lints_internal/src/derive_deserialize_allowing_unknown.rs @@ -6,7 +6,8 @@ use rustc_hir::attrs::AttributeKind; use rustc_hir::def::Res; use rustc_hir::def_id::LocalDefId; use rustc_hir::{ - AttrArgs, AttrItem, AttrPath, Attribute, HirId, Impl, Item, ItemKind, Path, QPath, TraitRef, Ty, TyKind, find_attr, + AttrArgs, AttrItem, AttrPath, Attribute, HirId, Impl, Item, ItemKind, Path, QPath, TraitImplHeader, TraitRef, Ty, + TyKind, find_attr, }; use rustc_lint::{LateContext, LateLintPass}; use rustc_lint_defs::declare_tool_lint; @@ -56,10 +57,14 @@ impl<'tcx> LateLintPass<'tcx> for DeriveDeserializeAllowingUnknown { // Is this an `impl` (of a certain form)? let ItemKind::Impl(Impl { of_trait: - Some(TraitRef { - path: - Path { - res: Res::Def(_, trait_def_id), + Some(TraitImplHeader { + trait_ref: + TraitRef { + path: + Path { + res: Res::Def(_, trait_def_id), + .. + }, .. }, .. diff --git a/src/tools/clippy/clippy_test_deps/Cargo.lock b/src/tools/clippy/clippy_test_deps/Cargo.lock index 2f987c0137c..b22cf9d107d 100644 --- a/src/tools/clippy/clippy_test_deps/Cargo.lock +++ b/src/tools/clippy/clippy_test_deps/Cargo.lock @@ -377,9 +377,9 @@ dependencies = [ [[package]] name = "slab" -version = "0.4.10" +version = "0.4.11" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "04dc19736151f35336d325007ac991178d504a119863a2fcb3758cdb5e52c50d" +checksum = "7a2ae44ef20feb57a68b23d846850f861394c2e02dc425a50098ae8c90267589" [[package]] name = "smallvec" diff --git a/src/tools/clippy/clippy_utils/README.md b/src/tools/clippy/clippy_utils/README.md index 6d8dd92d55d..2dfe28953d0 100644 --- a/src/tools/clippy/clippy_utils/README.md +++ b/src/tools/clippy/clippy_utils/README.md @@ -8,7 +8,7 @@ This crate is only guaranteed to build with this `nightly` toolchain: <!-- begin autogenerated nightly --> ``` -nightly-2025-08-07 +nightly-2025-08-22 ``` <!-- end autogenerated nightly --> diff --git a/src/tools/clippy/clippy_utils/src/ast_utils/mod.rs b/src/tools/clippy/clippy_utils/src/ast_utils/mod.rs index 24e017f7cf7..40c00568a3b 100644 --- a/src/tools/clippy/clippy_utils/src/ast_utils/mod.rs +++ b/src/tools/clippy/clippy_utils/src/ast_utils/mod.rs @@ -41,21 +41,23 @@ pub fn eq_pat(l: &Pat, r: &Pat) -> bool { b1 == b2 && eq_id(*i1, *i2) && both(s1.as_deref(), s2.as_deref(), eq_pat) }, (Range(lf, lt, le), Range(rf, rt, re)) => { - eq_expr_opt(lf.as_ref(), rf.as_ref()) - && eq_expr_opt(lt.as_ref(), rt.as_ref()) + eq_expr_opt(lf.as_deref(), rf.as_deref()) + && eq_expr_opt(lt.as_deref(), rt.as_deref()) && eq_range_end(&le.node, &re.node) }, (Box(l), Box(r)) | (Ref(l, Mutability::Not), Ref(r, Mutability::Not)) | (Ref(l, Mutability::Mut), Ref(r, Mutability::Mut)) => eq_pat(l, r), (Tuple(l), Tuple(r)) | (Slice(l), Slice(r)) => over(l, r, |l, r| eq_pat(l, r)), - (Path(lq, lp), Path(rq, rp)) => both(lq.as_ref(), rq.as_ref(), eq_qself) && eq_path(lp, rp), + (Path(lq, lp), Path(rq, rp)) => both(lq.as_deref(), rq.as_deref(), eq_qself) && eq_path(lp, rp), (TupleStruct(lqself, lp, lfs), TupleStruct(rqself, rp, rfs)) => { - eq_maybe_qself(lqself.as_ref(), rqself.as_ref()) && eq_path(lp, rp) && over(lfs, rfs, |l, r| eq_pat(l, r)) + eq_maybe_qself(lqself.as_deref(), rqself.as_deref()) + && eq_path(lp, rp) + && over(lfs, rfs, |l, r| eq_pat(l, r)) }, (Struct(lqself, lp, lfs, lr), Struct(rqself, rp, rfs, rr)) => { lr == rr - && eq_maybe_qself(lqself.as_ref(), rqself.as_ref()) + && eq_maybe_qself(lqself.as_deref(), rqself.as_deref()) && eq_path(lp, rp) && unordered_over(lfs, rfs, eq_field_pat) }, @@ -82,11 +84,11 @@ pub fn eq_field_pat(l: &PatField, r: &PatField) -> bool { && over(&l.attrs, &r.attrs, eq_attr) } -pub fn eq_qself(l: &Box<QSelf>, r: &Box<QSelf>) -> bool { +pub fn eq_qself(l: &QSelf, r: &QSelf) -> bool { l.position == r.position && eq_ty(&l.ty, &r.ty) } -pub fn eq_maybe_qself(l: Option<&Box<QSelf>>, r: Option<&Box<QSelf>>) -> bool { +pub fn eq_maybe_qself(l: Option<&QSelf>, r: Option<&QSelf>) -> bool { match (l, r) { (Some(l), Some(r)) => eq_qself(l, r), (None, None) => true, @@ -129,8 +131,8 @@ pub fn eq_generic_arg(l: &GenericArg, r: &GenericArg) -> bool { } } -pub fn eq_expr_opt(l: Option<&Box<Expr>>, r: Option<&Box<Expr>>) -> bool { - both(l, r, |l, r| eq_expr(l, r)) +pub fn eq_expr_opt(l: Option<&Expr>, r: Option<&Expr>) -> bool { + both(l, r, eq_expr) } pub fn eq_struct_rest(l: &StructRest, r: &StructRest) -> bool { @@ -177,7 +179,7 @@ pub fn eq_expr(l: &Expr, r: &Expr) -> bool { (Cast(l, lt), Cast(r, rt)) | (Type(l, lt), Type(r, rt)) => eq_expr(l, r) && eq_ty(lt, rt), (Let(lp, le, _, _), Let(rp, re, _, _)) => eq_pat(lp, rp) && eq_expr(le, re), (If(lc, lt, le), If(rc, rt, re)) => { - eq_expr(lc, rc) && eq_block(lt, rt) && eq_expr_opt(le.as_ref(), re.as_ref()) + eq_expr(lc, rc) && eq_block(lt, rt) && eq_expr_opt(le.as_deref(), re.as_deref()) }, (While(lc, lt, ll), While(rc, rt, rl)) => { eq_label(ll.as_ref(), rl.as_ref()) && eq_expr(lc, rc) && eq_block(lt, rt) @@ -201,9 +203,11 @@ pub fn eq_expr(l: &Expr, r: &Expr) -> bool { (Loop(lt, ll, _), Loop(rt, rl, _)) => eq_label(ll.as_ref(), rl.as_ref()) && eq_block(lt, rt), (Block(lb, ll), Block(rb, rl)) => eq_label(ll.as_ref(), rl.as_ref()) && eq_block(lb, rb), (TryBlock(l), TryBlock(r)) => eq_block(l, r), - (Yield(l), Yield(r)) => eq_expr_opt(l.expr(), r.expr()) && l.same_kind(r), - (Ret(l), Ret(r)) => eq_expr_opt(l.as_ref(), r.as_ref()), - (Break(ll, le), Break(rl, re)) => eq_label(ll.as_ref(), rl.as_ref()) && eq_expr_opt(le.as_ref(), re.as_ref()), + (Yield(l), Yield(r)) => eq_expr_opt(l.expr().map(Box::as_ref), r.expr().map(Box::as_ref)) && l.same_kind(r), + (Ret(l), Ret(r)) => eq_expr_opt(l.as_deref(), r.as_deref()), + (Break(ll, le), Break(rl, re)) => { + eq_label(ll.as_ref(), rl.as_ref()) && eq_expr_opt(le.as_deref(), re.as_deref()) + }, (Continue(ll), Continue(rl)) => eq_label(ll.as_ref(), rl.as_ref()), (Assign(l1, l2, _), Assign(r1, r2, _)) | (Index(l1, l2, _), Index(r1, r2, _)) => { eq_expr(l1, r1) && eq_expr(l2, r2) @@ -240,13 +244,13 @@ pub fn eq_expr(l: &Expr, r: &Expr) -> bool { }, (Gen(lc, lb, lk, _), Gen(rc, rb, rk, _)) => lc == rc && eq_block(lb, rb) && lk == rk, (Range(lf, lt, ll), Range(rf, rt, rl)) => { - ll == rl && eq_expr_opt(lf.as_ref(), rf.as_ref()) && eq_expr_opt(lt.as_ref(), rt.as_ref()) + ll == rl && eq_expr_opt(lf.as_deref(), rf.as_deref()) && eq_expr_opt(lt.as_deref(), rt.as_deref()) }, (AddrOf(lbk, lm, le), AddrOf(rbk, rm, re)) => lbk == rbk && lm == rm && eq_expr(le, re), - (Path(lq, lp), Path(rq, rp)) => both(lq.as_ref(), rq.as_ref(), eq_qself) && eq_path(lp, rp), + (Path(lq, lp), Path(rq, rp)) => both(lq.as_deref(), rq.as_deref(), eq_qself) && eq_path(lp, rp), (MacCall(l), MacCall(r)) => eq_mac_call(l, r), (Struct(lse), Struct(rse)) => { - eq_maybe_qself(lse.qself.as_ref(), rse.qself.as_ref()) + eq_maybe_qself(lse.qself.as_deref(), rse.qself.as_deref()) && eq_path(&lse.path, &rse.path) && eq_struct_rest(&lse.rest, &rse.rest) && unordered_over(&lse.fields, &rse.fields, eq_field) @@ -278,8 +282,8 @@ pub fn eq_field(l: &ExprField, r: &ExprField) -> bool { pub fn eq_arm(l: &Arm, r: &Arm) -> bool { l.is_placeholder == r.is_placeholder && eq_pat(&l.pat, &r.pat) - && eq_expr_opt(l.body.as_ref(), r.body.as_ref()) - && eq_expr_opt(l.guard.as_ref(), r.guard.as_ref()) + && eq_expr_opt(l.body.as_deref(), r.body.as_deref()) + && eq_expr_opt(l.guard.as_deref(), r.guard.as_deref()) && over(&l.attrs, &r.attrs, eq_attr) } @@ -324,7 +328,7 @@ pub fn eq_item<K>(l: &Item<K>, r: &Item<K>, mut eq_kind: impl FnMut(&K, &K) -> b over(&l.attrs, &r.attrs, eq_attr) && eq_vis(&l.vis, &r.vis) && eq_kind(&l.kind, &r.kind) } -#[expect(clippy::similar_names, clippy::too_many_lines)] // Just a big match statement +#[expect(clippy::too_many_lines)] // Just a big match statement pub fn eq_item_kind(l: &ItemKind, r: &ItemKind) -> bool { use ItemKind::*; match (l, r) { @@ -347,7 +351,7 @@ pub fn eq_item_kind(l: &ItemKind, r: &ItemKind) -> bool { safety: rs, define_opaque: _, }), - ) => eq_id(*li, *ri) && lm == rm && ls == rs && eq_ty(lt, rt) && eq_expr_opt(le.as_ref(), re.as_ref()), + ) => eq_id(*li, *ri) && lm == rm && ls == rs && eq_ty(lt, rt) && eq_expr_opt(le.as_deref(), re.as_deref()), ( Const(box ConstItem { defaultness: ld, @@ -370,7 +374,7 @@ pub fn eq_item_kind(l: &ItemKind, r: &ItemKind) -> bool { && eq_id(*li, *ri) && eq_generics(lg, rg) && eq_ty(lt, rt) - && eq_expr_opt(le.as_ref(), re.as_ref()) + && eq_expr_opt(le.as_deref(), re.as_deref()) }, ( Fn(box ast::Fn { @@ -403,7 +407,7 @@ pub fn eq_item_kind(l: &ItemKind, r: &ItemKind) -> bool { ls == rs && eq_id(*li, *ri) && match (lmk, rmk) { - (ModKind::Loaded(litems, linline, _, _), ModKind::Loaded(ritems, rinline, _, _)) => { + (ModKind::Loaded(litems, linline, _), ModKind::Loaded(ritems, rinline, _)) => { linline == rinline && over(litems, ritems, |l, r| eq_item(l, r, eq_item_kind)) }, (ModKind::Unloaded, ModKind::Unloaded) => true, @@ -525,7 +529,7 @@ pub fn eq_foreign_item_kind(l: &ForeignItemKind, r: &ForeignItemKind) -> bool { safety: rs, define_opaque: _, }), - ) => eq_id(*li, *ri) && eq_ty(lt, rt) && lm == rm && eq_expr_opt(le.as_ref(), re.as_ref()) && ls == rs, + ) => eq_id(*li, *ri) && eq_ty(lt, rt) && lm == rm && eq_expr_opt(le.as_deref(), re.as_deref()) && ls == rs, ( Fn(box ast::Fn { defaultness: ld, @@ -607,7 +611,7 @@ pub fn eq_assoc_item_kind(l: &AssocItemKind, r: &AssocItemKind) -> bool { && eq_id(*li, *ri) && eq_generics(lg, rg) && eq_ty(lt, rt) - && eq_expr_opt(le.as_ref(), re.as_ref()) + && eq_expr_opt(le.as_deref(), re.as_deref()) }, ( Fn(box ast::Fn { @@ -723,7 +727,8 @@ pub fn eq_fn_header(l: &FnHeader, r: &FnHeader) -> bool { pub fn eq_opt_fn_contract(l: &Option<Box<FnContract>>, r: &Option<Box<FnContract>>) -> bool { match (l, r) { (Some(l), Some(r)) => { - eq_expr_opt(l.requires.as_ref(), r.requires.as_ref()) && eq_expr_opt(l.ensures.as_ref(), r.ensures.as_ref()) + eq_expr_opt(l.requires.as_deref(), r.requires.as_deref()) + && eq_expr_opt(l.ensures.as_deref(), r.ensures.as_deref()) }, (None, None) => true, (Some(_), None) | (None, Some(_)) => false, @@ -841,7 +846,7 @@ pub fn eq_ty(l: &Ty, r: &Ty) -> bool { && eq_fn_decl(&l.decl, &r.decl) }, (Tup(l), Tup(r)) => over(l, r, |l, r| eq_ty(l, r)), - (Path(lq, lp), Path(rq, rp)) => both(lq.as_ref(), rq.as_ref(), eq_qself) && eq_path(lp, rp), + (Path(lq, lp), Path(rq, rp)) => both(lq.as_deref(), rq.as_deref(), eq_qself) && eq_path(lp, rp), (TraitObject(lg, ls), TraitObject(rg, rs)) => ls == rs && over(lg, rg, eq_generic_bound), (ImplTrait(_, lg), ImplTrait(_, rg)) => over(lg, rg, eq_generic_bound), (Typeof(l), Typeof(r)) => eq_expr(&l.value, &r.value), diff --git a/src/tools/clippy/clippy_utils/src/check_proc_macro.rs b/src/tools/clippy/clippy_utils/src/check_proc_macro.rs index e0c1b9d445a..c4a759e919b 100644 --- a/src/tools/clippy/clippy_utils/src/check_proc_macro.rs +++ b/src/tools/clippy/clippy_utils/src/check_proc_macro.rs @@ -19,8 +19,8 @@ use rustc_ast::token::CommentKind; use rustc_hir::intravisit::FnKind; use rustc_hir::{ Block, BlockCheckMode, Body, Closure, Destination, Expr, ExprKind, FieldDef, FnHeader, FnRetTy, HirId, Impl, - ImplItem, ImplItemKind, TraitImplHeader, IsAuto, Item, ItemKind, Lit, LoopSource, MatchSource, MutTy, Node, Path, - QPath, Safety, TraitItem, TraitItemKind, Ty, TyKind, UnOp, UnsafeSource, Variant, VariantData, YieldSource, + ImplItem, ImplItemKind, IsAuto, Item, ItemKind, Lit, LoopSource, MatchSource, MutTy, Node, Path, QPath, Safety, + TraitImplHeader, TraitItem, TraitItemKind, Ty, TyKind, UnOp, UnsafeSource, Variant, VariantData, YieldSource, }; use rustc_lint::{EarlyContext, LateContext, LintContext}; use rustc_middle::ty::TyCtxt; @@ -254,7 +254,10 @@ fn item_search_pat(item: &Item<'_>) -> (Pat, Pat) { ItemKind::Union(..) => (Pat::Str("union"), Pat::Str("}")), ItemKind::Trait(_, _, Safety::Unsafe, ..) | ItemKind::Impl(Impl { - of_trait: Some(TraitImplHeader { safety: Safety::Unsafe, .. }), .. + of_trait: Some(TraitImplHeader { + safety: Safety::Unsafe, .. + }), + .. }) => (Pat::Str("unsafe"), Pat::Str("}")), ItemKind::Trait(_, IsAuto::Yes, ..) => (Pat::Str("auto"), Pat::Str("}")), ItemKind::Trait(..) => (Pat::Str("trait"), Pat::Str("}")), diff --git a/src/tools/clippy/clippy_utils/src/diagnostics.rs b/src/tools/clippy/clippy_utils/src/diagnostics.rs index 625e1eead21..8a19039a7fe 100644 --- a/src/tools/clippy/clippy_utils/src/diagnostics.rs +++ b/src/tools/clippy/clippy_utils/src/diagnostics.rs @@ -22,13 +22,14 @@ fn docs_link(diag: &mut Diag<'_, ()>, lint: &'static Lint) { { diag.help(format!( "for further information visit https://rust-lang.github.io/rust-clippy/{}/index.html#{lint}", - &option_env!("RUST_RELEASE_NUM").map_or_else( - || "master".to_string(), - |n| { - // extract just major + minor version and ignore patch versions - format!("rust-{}", n.rsplit_once('.').unwrap().1) - } - ) + match option_env!("CFG_RELEASE_CHANNEL") { + // Clippy version is 0.1.xx + // + // Always use .0 because we do not generate separate lint doc pages for rust patch releases + Some("stable") => concat!("rust-1.", env!("CARGO_PKG_VERSION_PATCH"), ".0"), + Some("beta") => "beta", + _ => "master", + } )); } } diff --git a/src/tools/clippy/clippy_utils/src/hir_utils.rs b/src/tools/clippy/clippy_utils/src/hir_utils.rs index f0d7fb89c44..8160443f413 100644 --- a/src/tools/clippy/clippy_utils/src/hir_utils.rs +++ b/src/tools/clippy/clippy_utils/src/hir_utils.rs @@ -258,7 +258,7 @@ impl HirEqInterExpr<'_, '_, '_> { }) } - fn should_ignore(&mut self, expr: &Expr<'_>) -> bool { + fn should_ignore(&self, expr: &Expr<'_>) -> bool { macro_backtrace(expr.span).last().is_some_and(|macro_call| { matches!( self.inner.cx.tcx.get_diagnostic_name(macro_call.def_id), diff --git a/src/tools/clippy/clippy_utils/src/lib.rs b/src/tools/clippy/clippy_utils/src/lib.rs index fcc120656e3..8533fa85541 100644 --- a/src/tools/clippy/clippy_utils/src/lib.rs +++ b/src/tools/clippy/clippy_utils/src/lib.rs @@ -460,6 +460,23 @@ pub fn path_to_local_id(expr: &Expr<'_>, id: HirId) -> bool { path_to_local(expr) == Some(id) } +/// If the expression is a path to a local (with optional projections), +/// returns the canonical `HirId` of the local. +/// +/// For example, `x.field[0].field2` would return the `HirId` of `x`. +pub fn path_to_local_with_projections(expr: &Expr<'_>) -> Option<HirId> { + match expr.kind { + ExprKind::Field(recv, _) | ExprKind::Index(recv, _, _) => path_to_local_with_projections(recv), + ExprKind::Path(QPath::Resolved( + _, + Path { + res: Res::Local(local), .. + }, + )) => Some(*local), + _ => None, + } +} + pub trait MaybePath<'hir> { fn hir_id(&self) -> HirId; fn qpath_opt(&self) -> Option<&QPath<'hir>>; diff --git a/src/tools/clippy/clippy_utils/src/msrvs.rs b/src/tools/clippy/clippy_utils/src/msrvs.rs index 89a83e2c48f..896d607fbcd 100644 --- a/src/tools/clippy/clippy_utils/src/msrvs.rs +++ b/src/tools/clippy/clippy_utils/src/msrvs.rs @@ -189,25 +189,25 @@ impl MsrvStack { fn parse_attrs(sess: &Session, attrs: &[impl AttributeExt]) -> Option<RustcVersion> { let mut msrv_attrs = attrs.iter().filter(|attr| attr.path_matches(&[sym::clippy, sym::msrv])); - if let Some(msrv_attr) = msrv_attrs.next() { - if let Some(duplicate) = msrv_attrs.next_back() { - sess.dcx() - .struct_span_err(duplicate.span(), "`clippy::msrv` is defined multiple times") - .with_span_note(msrv_attr.span(), "first definition found here") - .emit(); - } - - if let Some(msrv) = msrv_attr.value_str() { - if let Some(version) = parse_version(msrv) { - return Some(version); - } + let msrv_attr = msrv_attrs.next()?; - sess.dcx() - .span_err(msrv_attr.span(), format!("`{msrv}` is not a valid Rust version")); - } else { - sess.dcx().span_err(msrv_attr.span(), "bad clippy attribute"); - } + if let Some(duplicate) = msrv_attrs.next_back() { + sess.dcx() + .struct_span_err(duplicate.span(), "`clippy::msrv` is defined multiple times") + .with_span_note(msrv_attr.span(), "first definition found here") + .emit(); } - None + let Some(msrv) = msrv_attr.value_str() else { + sess.dcx().span_err(msrv_attr.span(), "bad clippy attribute"); + return None; + }; + + let Some(version) = parse_version(msrv) else { + sess.dcx() + .span_err(msrv_attr.span(), format!("`{msrv}` is not a valid Rust version")); + return None; + }; + + Some(version) } diff --git a/src/tools/clippy/clippy_utils/src/ty/mod.rs b/src/tools/clippy/clippy_utils/src/ty/mod.rs index d79773f8321..fafc1d07e51 100644 --- a/src/tools/clippy/clippy_utils/src/ty/mod.rs +++ b/src/tools/clippy/clippy_utils/src/ty/mod.rs @@ -18,6 +18,7 @@ use rustc_lint::LateContext; use rustc_middle::mir::ConstValue; use rustc_middle::mir::interpret::Scalar; use rustc_middle::traits::EvaluationResult; +use rustc_middle::ty::adjustment::{Adjust, Adjustment}; use rustc_middle::ty::layout::ValidityRequirement; use rustc_middle::ty::{ self, AdtDef, AliasTy, AssocItem, AssocTag, Binder, BoundRegion, FnSig, GenericArg, GenericArgKind, GenericArgsRef, @@ -31,7 +32,7 @@ use rustc_trait_selection::traits::query::normalize::QueryNormalizeExt; use rustc_trait_selection::traits::{Obligation, ObligationCause}; use std::assert_matches::debug_assert_matches; use std::collections::hash_map::Entry; -use std::iter; +use std::{iter, mem}; use crate::path_res; use crate::paths::{PathNS, lookup_path_str}; @@ -1382,7 +1383,6 @@ pub fn is_slice_like<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> bool { || matches!(ty.kind(), ty::Adt(adt_def, _) if cx.tcx.is_diagnostic_item(sym::Vec, adt_def.did())) } -/// Gets the index of a field by name. pub fn get_field_idx_by_name(ty: Ty<'_>, name: Symbol) -> Option<usize> { match *ty.kind() { ty::Adt(def, _) if def.is_union() || def.is_struct() => { @@ -1392,3 +1392,11 @@ pub fn get_field_idx_by_name(ty: Ty<'_>, name: Symbol) -> Option<usize> { _ => None, } } + +/// Checks if the adjustments contain a mutable dereference of a `ManuallyDrop<_>`. +pub fn adjust_derefs_manually_drop<'tcx>(adjustments: &'tcx [Adjustment<'tcx>], mut ty: Ty<'tcx>) -> bool { + adjustments.iter().any(|a| { + let ty = mem::replace(&mut ty, a.target); + matches!(a.kind, Adjust::Deref(Some(op)) if op.mutbl == Mutability::Mut) && is_manually_drop(ty) + }) +} diff --git a/src/tools/clippy/rust-toolchain.toml b/src/tools/clippy/rust-toolchain.toml index ac51ec2d61b..5497e77e8ad 100644 --- a/src/tools/clippy/rust-toolchain.toml +++ b/src/tools/clippy/rust-toolchain.toml @@ -1,6 +1,6 @@ [toolchain] # begin autogenerated nightly -channel = "nightly-2025-08-07" +channel = "nightly-2025-08-22" # end autogenerated nightly components = ["cargo", "llvm-tools", "rust-src", "rust-std", "rustc", "rustc-dev", "rustfmt"] profile = "minimal" diff --git a/src/tools/clippy/tests/ui-cargo/undocumented_unsafe_blocks/fail/Cargo.stderr b/src/tools/clippy/tests/ui-cargo/undocumented_unsafe_blocks/fail/Cargo.stderr new file mode 100644 index 00000000000..59a7146ac90 --- /dev/null +++ b/src/tools/clippy/tests/ui-cargo/undocumented_unsafe_blocks/fail/Cargo.stderr @@ -0,0 +1,26 @@ +error: module has unnecessary safety comment + --> src/main.rs:2:1 + | +2 | mod x {} + | ^^^^^^^^ + | +help: consider removing the safety comment + --> src/main.rs:1:1 + | +1 | // SAFETY: ... + | ^^^^^^^^^^^^^^ + = note: requested on the command line with `-D clippy::unnecessary-safety-comment` + +error: module has unnecessary safety comment + --> src/main.rs:5:1 + | +5 | mod y {} + | ^^^^^^^^ + | +help: consider removing the safety comment + --> src/main.rs:4:1 + | +4 | // SAFETY: ... + | ^^^^^^^^^^^^^^ + +error: could not compile `undocumented_unsafe_blocks` (bin "undocumented_unsafe_blocks") due to 2 previous errors diff --git a/src/tools/clippy/tests/ui-cargo/undocumented_unsafe_blocks/fail/Cargo.toml b/src/tools/clippy/tests/ui-cargo/undocumented_unsafe_blocks/fail/Cargo.toml new file mode 100644 index 00000000000..36bb3472df0 --- /dev/null +++ b/src/tools/clippy/tests/ui-cargo/undocumented_unsafe_blocks/fail/Cargo.toml @@ -0,0 +1,12 @@ +# Reproducing #14553 requires the `# Safety` comment to be in the first line of +# the file. Since `unnecessary_safety_comment` is not enabled by default, we +# will set it up here. + +[package] +name = "undocumented_unsafe_blocks" +edition = "2024" +publish = false +version = "0.1.0" + +[lints.clippy] +unnecessary_safety_comment = "deny" diff --git a/src/tools/clippy/tests/ui-cargo/undocumented_unsafe_blocks/fail/src/main.rs b/src/tools/clippy/tests/ui-cargo/undocumented_unsafe_blocks/fail/src/main.rs new file mode 100644 index 00000000000..5cafcff99dd --- /dev/null +++ b/src/tools/clippy/tests/ui-cargo/undocumented_unsafe_blocks/fail/src/main.rs @@ -0,0 +1,7 @@ +// SAFETY: ... +mod x {} + +// SAFETY: ... +mod y {} + +fn main() {} diff --git a/src/tools/clippy/tests/ui-toml/functions_maxlines/test.stderr b/src/tools/clippy/tests/ui-toml/functions_maxlines/test.stderr index 14a49cb76c1..e856963c87d 100644 --- a/src/tools/clippy/tests/ui-toml/functions_maxlines/test.stderr +++ b/src/tools/clippy/tests/ui-toml/functions_maxlines/test.stderr @@ -1,12 +1,8 @@ error: this function has too many lines (2/1) --> tests/ui-toml/functions_maxlines/test.rs:19:1 | -LL | / fn too_many_lines() { -LL | | -LL | | println!("This is bad."); -LL | | println!("This is bad."); -LL | | } - | |_^ +LL | fn too_many_lines() { + | ^^^^^^^^^^^^^^^^^^^ | = note: `-D clippy::too-many-lines` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(clippy::too_many_lines)]` @@ -14,35 +10,20 @@ LL | | } error: this function has too many lines (4/1) --> tests/ui-toml/functions_maxlines/test.rs:26:1 | -LL | / async fn async_too_many_lines() { -LL | | -LL | | println!("This is bad."); -LL | | println!("This is bad."); -LL | | } - | |_^ +LL | async fn async_too_many_lines() { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: this function has too many lines (4/1) --> tests/ui-toml/functions_maxlines/test.rs:33:1 | -LL | / fn closure_too_many_lines() { -LL | | -LL | | let _ = { -LL | | println!("This is bad."); -LL | | println!("This is bad."); -LL | | }; -LL | | } - | |_^ +LL | fn closure_too_many_lines() { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: this function has too many lines (2/1) --> tests/ui-toml/functions_maxlines/test.rs:56:1 | -LL | / fn comment_before_code() { -LL | | -LL | | let _ = "test"; -LL | | /* This comment extends to the front of -LL | | the code but this line should still count. */ let _ = 5; -LL | | } - | |_^ +LL | fn comment_before_code() { + | ^^^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to 4 previous errors diff --git a/src/tools/clippy/tests/ui/as_ptr_cast_mut.fixed b/src/tools/clippy/tests/ui/as_ptr_cast_mut.fixed new file mode 100644 index 00000000000..fe9c5dca5ba --- /dev/null +++ b/src/tools/clippy/tests/ui/as_ptr_cast_mut.fixed @@ -0,0 +1,38 @@ +#![allow(unused)] +#![warn(clippy::as_ptr_cast_mut)] +#![allow(clippy::wrong_self_convention, clippy::unnecessary_cast)] + +struct MutPtrWrapper(Vec<u8>); +impl MutPtrWrapper { + fn as_ptr(&mut self) -> *const u8 { + self.0.as_mut_ptr() as *const u8 + } +} + +struct Covariant<T>(*const T); +impl<T> Covariant<T> { + fn as_ptr(self) -> *const T { + self.0 + } +} + +fn main() { + let mut string = String::new(); + let _ = string.as_mut_ptr(); + //~^ as_ptr_cast_mut + + let _ = string.as_ptr() as *const i8; + let _ = string.as_mut_ptr(); + let _ = string.as_mut_ptr() as *mut u8; + let _ = string.as_mut_ptr() as *const u8; + + let nn = std::ptr::NonNull::new(4 as *mut u8).unwrap(); + let _ = nn.as_ptr() as *mut u8; + + let mut wrap = MutPtrWrapper(Vec::new()); + let _ = wrap.as_ptr() as *mut u8; + + let mut local = 4; + let ref_with_write_perm = Covariant(std::ptr::addr_of_mut!(local) as *const _); + let _ = ref_with_write_perm.as_ptr() as *mut u8; +} diff --git a/src/tools/clippy/tests/ui/as_ptr_cast_mut.rs b/src/tools/clippy/tests/ui/as_ptr_cast_mut.rs index baf7279adc4..3f22c2058d0 100644 --- a/src/tools/clippy/tests/ui/as_ptr_cast_mut.rs +++ b/src/tools/clippy/tests/ui/as_ptr_cast_mut.rs @@ -1,7 +1,6 @@ #![allow(unused)] #![warn(clippy::as_ptr_cast_mut)] #![allow(clippy::wrong_self_convention, clippy::unnecessary_cast)] -//@no-rustfix: incorrect suggestion struct MutPtrWrapper(Vec<u8>); impl MutPtrWrapper { @@ -22,9 +21,6 @@ fn main() { let _ = string.as_ptr() as *mut u8; //~^ as_ptr_cast_mut - let _: *mut i8 = string.as_ptr() as *mut _; - //~^ as_ptr_cast_mut - let _ = string.as_ptr() as *const i8; let _ = string.as_mut_ptr(); let _ = string.as_mut_ptr() as *mut u8; diff --git a/src/tools/clippy/tests/ui/as_ptr_cast_mut.stderr b/src/tools/clippy/tests/ui/as_ptr_cast_mut.stderr index b3fc223ccdb..fa9fb23e2d0 100644 --- a/src/tools/clippy/tests/ui/as_ptr_cast_mut.stderr +++ b/src/tools/clippy/tests/ui/as_ptr_cast_mut.stderr @@ -1,5 +1,5 @@ error: casting the result of `as_ptr` to *mut u8 - --> tests/ui/as_ptr_cast_mut.rs:22:13 + --> tests/ui/as_ptr_cast_mut.rs:21:13 | LL | let _ = string.as_ptr() as *mut u8; | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `string.as_mut_ptr()` @@ -7,11 +7,5 @@ LL | let _ = string.as_ptr() as *mut u8; = note: `-D clippy::as-ptr-cast-mut` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(clippy::as_ptr_cast_mut)]` -error: casting the result of `as_ptr` to *mut i8 - --> tests/ui/as_ptr_cast_mut.rs:25:22 - | -LL | let _: *mut i8 = string.as_ptr() as *mut _; - | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `string.as_mut_ptr()` - -error: aborting due to 2 previous errors +error: aborting due to 1 previous error diff --git a/src/tools/clippy/tests/ui/as_ptr_cast_mut_unfixable.rs b/src/tools/clippy/tests/ui/as_ptr_cast_mut_unfixable.rs new file mode 100644 index 00000000000..a8f6b06bd4f --- /dev/null +++ b/src/tools/clippy/tests/ui/as_ptr_cast_mut_unfixable.rs @@ -0,0 +1,16 @@ +//@no-rustfix +#![allow(unused)] +#![warn(clippy::as_ptr_cast_mut)] + +fn main() { + let mut string = String::new(); + + // the `*mut _` is actually necessary since it does two things at once: + // - changes the mutability (caught by the lint) + // - changes the type + // + // and so replacing this with `as_mut_ptr` removes the second thing, + // resulting in a type mismatch + let _: *mut i8 = string.as_ptr() as *mut _; + //~^ as_ptr_cast_mut +} diff --git a/src/tools/clippy/tests/ui/as_ptr_cast_mut_unfixable.stderr b/src/tools/clippy/tests/ui/as_ptr_cast_mut_unfixable.stderr new file mode 100644 index 00000000000..c5bcad6f4df --- /dev/null +++ b/src/tools/clippy/tests/ui/as_ptr_cast_mut_unfixable.stderr @@ -0,0 +1,11 @@ +error: casting the result of `as_ptr` to *mut i8 + --> tests/ui/as_ptr_cast_mut_unfixable.rs:14:22 + | +LL | let _: *mut i8 = string.as_ptr() as *mut _; + | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `string.as_mut_ptr()` + | + = note: `-D clippy::as-ptr-cast-mut` implied by `-D warnings` + = help: to override `-D warnings` add `#[allow(clippy::as_ptr_cast_mut)]` + +error: aborting due to 1 previous error + diff --git a/src/tools/clippy/tests/ui/borrow_as_ptr.fixed b/src/tools/clippy/tests/ui/borrow_as_ptr.fixed index 3f6e5245b87..bfe826508f3 100644 --- a/src/tools/clippy/tests/ui/borrow_as_ptr.fixed +++ b/src/tools/clippy/tests/ui/borrow_as_ptr.fixed @@ -1,6 +1,9 @@ +//@aux-build:proc_macros.rs #![warn(clippy::borrow_as_ptr)] #![allow(clippy::useless_vec)] +extern crate proc_macros; + fn a() -> i32 { 0 } @@ -53,3 +56,12 @@ fn issue_15141() { // Don't lint cast to dyn trait pointers let b = &a as *const dyn std::any::Any; } + +fn issue15389() { + proc_macros::with_span! { + span + let var = 0u32; + // Don't lint in proc-macros + let _ = &var as *const u32; + }; +} diff --git a/src/tools/clippy/tests/ui/borrow_as_ptr.rs b/src/tools/clippy/tests/ui/borrow_as_ptr.rs index 20f4f40e001..ce248f157c6 100644 --- a/src/tools/clippy/tests/ui/borrow_as_ptr.rs +++ b/src/tools/clippy/tests/ui/borrow_as_ptr.rs @@ -1,6 +1,9 @@ +//@aux-build:proc_macros.rs #![warn(clippy::borrow_as_ptr)] #![allow(clippy::useless_vec)] +extern crate proc_macros; + fn a() -> i32 { 0 } @@ -53,3 +56,12 @@ fn issue_15141() { // Don't lint cast to dyn trait pointers let b = &a as *const dyn std::any::Any; } + +fn issue15389() { + proc_macros::with_span! { + span + let var = 0u32; + // Don't lint in proc-macros + let _ = &var as *const u32; + }; +} diff --git a/src/tools/clippy/tests/ui/borrow_as_ptr.stderr b/src/tools/clippy/tests/ui/borrow_as_ptr.stderr index b1fcce49403..b371b477a50 100644 --- a/src/tools/clippy/tests/ui/borrow_as_ptr.stderr +++ b/src/tools/clippy/tests/ui/borrow_as_ptr.stderr @@ -1,5 +1,5 @@ error: borrow as raw pointer - --> tests/ui/borrow_as_ptr.rs:11:14 + --> tests/ui/borrow_as_ptr.rs:14:14 | LL | let _p = &val as *const i32; | ^^^^^^^^^^^^^^^^^^ help: try: `std::ptr::addr_of!(val)` @@ -8,25 +8,25 @@ LL | let _p = &val as *const i32; = help: to override `-D warnings` add `#[allow(clippy::borrow_as_ptr)]` error: borrow as raw pointer - --> tests/ui/borrow_as_ptr.rs:19:18 + --> tests/ui/borrow_as_ptr.rs:22:18 | LL | let _p_mut = &mut val_mut as *mut i32; | ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `std::ptr::addr_of_mut!(val_mut)` error: borrow as raw pointer - --> tests/ui/borrow_as_ptr.rs:23:16 + --> tests/ui/borrow_as_ptr.rs:26:16 | LL | let _raw = (&mut x[1] as *mut i32).wrapping_offset(-1); | ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `std::ptr::addr_of_mut!(x[1])` error: borrow as raw pointer - --> tests/ui/borrow_as_ptr.rs:29:17 + --> tests/ui/borrow_as_ptr.rs:32:17 | LL | let _raw = (&mut x[1] as *mut i32).wrapping_offset(-1); | ^^^^^^^^^^^^^^^^^^^^^ help: try: `&raw mut x[1]` error: implicit borrow as raw pointer - --> tests/ui/borrow_as_ptr.rs:35:25 + --> tests/ui/borrow_as_ptr.rs:38:25 | LL | let p: *const i32 = &val; | ^^^^ @@ -37,7 +37,7 @@ LL | let p: *const i32 = &raw const val; | +++++++++ error: implicit borrow as raw pointer - --> tests/ui/borrow_as_ptr.rs:39:23 + --> tests/ui/borrow_as_ptr.rs:42:23 | LL | let p: *mut i32 = &mut val; | ^^^^^^^^ @@ -48,7 +48,7 @@ LL | let p: *mut i32 = &raw mut val; | +++ error: implicit borrow as raw pointer - --> tests/ui/borrow_as_ptr.rs:44:19 + --> tests/ui/borrow_as_ptr.rs:47:19 | LL | core::ptr::eq(&val, &1); | ^^^^ diff --git a/src/tools/clippy/tests/ui/char_lit_as_u8_suggestions.fixed b/src/tools/clippy/tests/ui/char_lit_as_u8.fixed index 64aacedfd36..64aacedfd36 100644 --- a/src/tools/clippy/tests/ui/char_lit_as_u8_suggestions.fixed +++ b/src/tools/clippy/tests/ui/char_lit_as_u8.fixed diff --git a/src/tools/clippy/tests/ui/char_lit_as_u8.rs b/src/tools/clippy/tests/ui/char_lit_as_u8.rs index c8774c7f309..a8f39e27605 100644 --- a/src/tools/clippy/tests/ui/char_lit_as_u8.rs +++ b/src/tools/clippy/tests/ui/char_lit_as_u8.rs @@ -1,7 +1,12 @@ #![warn(clippy::char_lit_as_u8)] fn main() { - // no suggestion, since a byte literal won't work. - let _ = '❤' as u8; + let _ = 'a' as u8; + //~^ char_lit_as_u8 + let _ = '\n' as u8; + //~^ char_lit_as_u8 + let _ = '\0' as u8; + //~^ char_lit_as_u8 + let _ = '\x01' as u8; //~^ char_lit_as_u8 } diff --git a/src/tools/clippy/tests/ui/char_lit_as_u8.stderr b/src/tools/clippy/tests/ui/char_lit_as_u8.stderr index ec02f1341c0..9bcded7b0ff 100644 --- a/src/tools/clippy/tests/ui/char_lit_as_u8.stderr +++ b/src/tools/clippy/tests/ui/char_lit_as_u8.stderr @@ -1,12 +1,36 @@ error: casting a character literal to `u8` truncates - --> tests/ui/char_lit_as_u8.rs:5:13 + --> tests/ui/char_lit_as_u8.rs:4:13 | -LL | let _ = '❤' as u8; - | ^^^^^^^^^ +LL | let _ = 'a' as u8; + | ^^^^^^^^^ help: use a byte literal instead: `b'a'` | = note: `char` is four bytes wide, but `u8` is a single byte = note: `-D clippy::char-lit-as-u8` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(clippy::char_lit_as_u8)]` -error: aborting due to 1 previous error +error: casting a character literal to `u8` truncates + --> tests/ui/char_lit_as_u8.rs:6:13 + | +LL | let _ = '\n' as u8; + | ^^^^^^^^^^ help: use a byte literal instead: `b'\n'` + | + = note: `char` is four bytes wide, but `u8` is a single byte + +error: casting a character literal to `u8` truncates + --> tests/ui/char_lit_as_u8.rs:8:13 + | +LL | let _ = '\0' as u8; + | ^^^^^^^^^^ help: use a byte literal instead: `b'\0'` + | + = note: `char` is four bytes wide, but `u8` is a single byte + +error: casting a character literal to `u8` truncates + --> tests/ui/char_lit_as_u8.rs:10:13 + | +LL | let _ = '\x01' as u8; + | ^^^^^^^^^^^^ help: use a byte literal instead: `b'\x01'` + | + = note: `char` is four bytes wide, but `u8` is a single byte + +error: aborting due to 4 previous errors diff --git a/src/tools/clippy/tests/ui/char_lit_as_u8_suggestions.rs b/src/tools/clippy/tests/ui/char_lit_as_u8_suggestions.rs deleted file mode 100644 index a8f39e27605..00000000000 --- a/src/tools/clippy/tests/ui/char_lit_as_u8_suggestions.rs +++ /dev/null @@ -1,12 +0,0 @@ -#![warn(clippy::char_lit_as_u8)] - -fn main() { - let _ = 'a' as u8; - //~^ char_lit_as_u8 - let _ = '\n' as u8; - //~^ char_lit_as_u8 - let _ = '\0' as u8; - //~^ char_lit_as_u8 - let _ = '\x01' as u8; - //~^ char_lit_as_u8 -} diff --git a/src/tools/clippy/tests/ui/char_lit_as_u8_suggestions.stderr b/src/tools/clippy/tests/ui/char_lit_as_u8_suggestions.stderr deleted file mode 100644 index 158dfd6bed2..00000000000 --- a/src/tools/clippy/tests/ui/char_lit_as_u8_suggestions.stderr +++ /dev/null @@ -1,36 +0,0 @@ -error: casting a character literal to `u8` truncates - --> tests/ui/char_lit_as_u8_suggestions.rs:4:13 - | -LL | let _ = 'a' as u8; - | ^^^^^^^^^ help: use a byte literal instead: `b'a'` - | - = note: `char` is four bytes wide, but `u8` is a single byte - = note: `-D clippy::char-lit-as-u8` implied by `-D warnings` - = help: to override `-D warnings` add `#[allow(clippy::char_lit_as_u8)]` - -error: casting a character literal to `u8` truncates - --> tests/ui/char_lit_as_u8_suggestions.rs:6:13 - | -LL | let _ = '\n' as u8; - | ^^^^^^^^^^ help: use a byte literal instead: `b'\n'` - | - = note: `char` is four bytes wide, but `u8` is a single byte - -error: casting a character literal to `u8` truncates - --> tests/ui/char_lit_as_u8_suggestions.rs:8:13 - | -LL | let _ = '\0' as u8; - | ^^^^^^^^^^ help: use a byte literal instead: `b'\0'` - | - = note: `char` is four bytes wide, but `u8` is a single byte - -error: casting a character literal to `u8` truncates - --> tests/ui/char_lit_as_u8_suggestions.rs:10:13 - | -LL | let _ = '\x01' as u8; - | ^^^^^^^^^^^^ help: use a byte literal instead: `b'\x01'` - | - = note: `char` is four bytes wide, but `u8` is a single byte - -error: aborting due to 4 previous errors - diff --git a/src/tools/clippy/tests/ui/char_lit_as_u8_unfixable.rs b/src/tools/clippy/tests/ui/char_lit_as_u8_unfixable.rs new file mode 100644 index 00000000000..e5c094f158e --- /dev/null +++ b/src/tools/clippy/tests/ui/char_lit_as_u8_unfixable.rs @@ -0,0 +1,8 @@ +//@no-rustfix +#![warn(clippy::char_lit_as_u8)] + +fn main() { + // no suggestion, since a byte literal won't work. + let _ = '❤' as u8; + //~^ char_lit_as_u8 +} diff --git a/src/tools/clippy/tests/ui/char_lit_as_u8_unfixable.stderr b/src/tools/clippy/tests/ui/char_lit_as_u8_unfixable.stderr new file mode 100644 index 00000000000..49e555ae638 --- /dev/null +++ b/src/tools/clippy/tests/ui/char_lit_as_u8_unfixable.stderr @@ -0,0 +1,12 @@ +error: casting a character literal to `u8` truncates + --> tests/ui/char_lit_as_u8_unfixable.rs:6:13 + | +LL | let _ = '❤' as u8; + | ^^^^^^^^^ + | + = note: `char` is four bytes wide, but `u8` is a single byte + = note: `-D clippy::char-lit-as-u8` implied by `-D warnings` + = help: to override `-D warnings` add `#[allow(clippy::char_lit_as_u8)]` + +error: aborting due to 1 previous error + diff --git a/src/tools/clippy/tests/ui/checked_unwrap/simple_conditionals.stderr b/src/tools/clippy/tests/ui/checked_unwrap/simple_conditionals.stderr index 26e360112b6..939b509d85c 100644 --- a/src/tools/clippy/tests/ui/checked_unwrap/simple_conditionals.stderr +++ b/src/tools/clippy/tests/ui/checked_unwrap/simple_conditionals.stderr @@ -330,7 +330,7 @@ LL | if X.is_some() { | = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html> = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives - = note: `#[deny(static_mut_refs)]` on by default + = note: `#[deny(static_mut_refs)]` (part of `#[deny(rust_2024_compatibility)]`) on by default error: aborting due to 36 previous errors diff --git a/src/tools/clippy/tests/ui/deref_addrof.fixed b/src/tools/clippy/tests/ui/deref_addrof.fixed index 35dbd790e89..ffe7f7d1440 100644 --- a/src/tools/clippy/tests/ui/deref_addrof.fixed +++ b/src/tools/clippy/tests/ui/deref_addrof.fixed @@ -1,11 +1,11 @@ -//@aux-build:proc_macros.rs - -#![allow(clippy::return_self_not_must_use, clippy::useless_vec)] +#![allow( + dangerous_implicit_autorefs, + clippy::explicit_auto_deref, + clippy::return_self_not_must_use, + clippy::useless_vec +)] #![warn(clippy::deref_addrof)] -extern crate proc_macros; -use proc_macros::inline_macros; - fn get_number() -> usize { 10 } @@ -56,19 +56,75 @@ fn main() { //~^ deref_addrof // do NOT lint for array as semantic differences with/out `*&`. let _arr = *&[0, 1, 2, 3, 4]; + + // Do not lint when text comes from macro + macro_rules! mac { + (dr) => { + *&0 + }; + (dr $e:expr) => { + *&$e + }; + (r $e:expr) => { + &$e + }; + } + let b = mac!(dr); + let b = mac!(dr a); + let b = *mac!(r a); } -#[derive(Copy, Clone)] -pub struct S; -#[inline_macros] -impl S { - pub fn f(&self) -> &Self { - inline!($(@expr self)) - //~^ deref_addrof +fn issue14386() { + use std::mem::ManuallyDrop; + + #[derive(Copy, Clone)] + struct Data { + num: u64, } - #[allow(unused_mut)] // mut will be unused, once the macro is fixed - pub fn f_mut(mut self) -> Self { - inline!($(@expr self)) + + #[derive(Clone, Copy)] + struct M { + md: ManuallyDrop<[u8; 4]>, + } + + union DataWithPadding<'lt> { + data: ManuallyDrop<Data>, + prim: ManuallyDrop<u64>, + padding: [u8; size_of::<Data>()], + tup: (ManuallyDrop<Data>, ()), + indirect: M, + indirect_arr: [M; 2], + indirect_ref: &'lt mut M, + } + + let mut a = DataWithPadding { + padding: [0; size_of::<DataWithPadding>()], + }; + unsafe { + a.padding = [1; size_of::<DataWithPadding>()]; //~^ deref_addrof + a.tup.1 = (); + //~^ deref_addrof + *a.prim = 0; + //~^ deref_addrof + + (*a.data).num = 42; + //~^ deref_addrof + (*a.indirect.md)[3] = 1; + //~^ deref_addrof + (*a.indirect_arr[1].md)[3] = 1; + //~^ deref_addrof + (*a.indirect_ref.md)[3] = 1; + //~^ deref_addrof + + // Check that raw pointers are properly considered as well + *a.prim = 0; + //~^ deref_addrof + (*a.data).num = 42; + //~^ deref_addrof + + // Do not lint, as the dereference happens later, we cannot + // just remove `&mut` + (*&mut a.tup).0.num = 42; } } diff --git a/src/tools/clippy/tests/ui/deref_addrof.rs b/src/tools/clippy/tests/ui/deref_addrof.rs index 96d1b92ef7b..bc253716aff 100644 --- a/src/tools/clippy/tests/ui/deref_addrof.rs +++ b/src/tools/clippy/tests/ui/deref_addrof.rs @@ -1,11 +1,11 @@ -//@aux-build:proc_macros.rs - -#![allow(clippy::return_self_not_must_use, clippy::useless_vec)] +#![allow( + dangerous_implicit_autorefs, + clippy::explicit_auto_deref, + clippy::return_self_not_must_use, + clippy::useless_vec +)] #![warn(clippy::deref_addrof)] -extern crate proc_macros; -use proc_macros::inline_macros; - fn get_number() -> usize { 10 } @@ -56,19 +56,75 @@ fn main() { //~^ deref_addrof // do NOT lint for array as semantic differences with/out `*&`. let _arr = *&[0, 1, 2, 3, 4]; + + // Do not lint when text comes from macro + macro_rules! mac { + (dr) => { + *&0 + }; + (dr $e:expr) => { + *&$e + }; + (r $e:expr) => { + &$e + }; + } + let b = mac!(dr); + let b = mac!(dr a); + let b = *mac!(r a); } -#[derive(Copy, Clone)] -pub struct S; -#[inline_macros] -impl S { - pub fn f(&self) -> &Self { - inline!(*& $(@expr self)) - //~^ deref_addrof +fn issue14386() { + use std::mem::ManuallyDrop; + + #[derive(Copy, Clone)] + struct Data { + num: u64, } - #[allow(unused_mut)] // mut will be unused, once the macro is fixed - pub fn f_mut(mut self) -> Self { - inline!(*&mut $(@expr self)) + + #[derive(Clone, Copy)] + struct M { + md: ManuallyDrop<[u8; 4]>, + } + + union DataWithPadding<'lt> { + data: ManuallyDrop<Data>, + prim: ManuallyDrop<u64>, + padding: [u8; size_of::<Data>()], + tup: (ManuallyDrop<Data>, ()), + indirect: M, + indirect_arr: [M; 2], + indirect_ref: &'lt mut M, + } + + let mut a = DataWithPadding { + padding: [0; size_of::<DataWithPadding>()], + }; + unsafe { + (*&mut a.padding) = [1; size_of::<DataWithPadding>()]; //~^ deref_addrof + (*&mut a.tup).1 = (); + //~^ deref_addrof + **&mut a.prim = 0; + //~^ deref_addrof + + (*&mut a.data).num = 42; + //~^ deref_addrof + (*&mut a.indirect.md)[3] = 1; + //~^ deref_addrof + (*&mut a.indirect_arr[1].md)[3] = 1; + //~^ deref_addrof + (*&mut a.indirect_ref.md)[3] = 1; + //~^ deref_addrof + + // Check that raw pointers are properly considered as well + **&raw mut a.prim = 0; + //~^ deref_addrof + (*&raw mut a.data).num = 42; + //~^ deref_addrof + + // Do not lint, as the dereference happens later, we cannot + // just remove `&mut` + (*&mut a.tup).0.num = 42; } } diff --git a/src/tools/clippy/tests/ui/deref_addrof.stderr b/src/tools/clippy/tests/ui/deref_addrof.stderr index 81414b625b2..65dd904a8f7 100644 --- a/src/tools/clippy/tests/ui/deref_addrof.stderr +++ b/src/tools/clippy/tests/ui/deref_addrof.stderr @@ -56,20 +56,58 @@ LL | let _repeat = *&[0; 64]; | ^^^^^^^^^ help: try: `[0; 64]` error: immediately dereferencing a reference - --> tests/ui/deref_addrof.rs:66:17 + --> tests/ui/deref_addrof.rs:104:9 | -LL | inline!(*& $(@expr self)) - | ^^^^^^^^^^^^^^^^ help: try: `$(@expr self)` +LL | (*&mut a.padding) = [1; size_of::<DataWithPadding>()]; + | ^^^^^^^^^^^^^^^^^ help: try: `a.padding` + +error: immediately dereferencing a reference + --> tests/ui/deref_addrof.rs:106:9 + | +LL | (*&mut a.tup).1 = (); + | ^^^^^^^^^^^^^ help: try: `a.tup` + +error: immediately dereferencing a reference + --> tests/ui/deref_addrof.rs:108:10 | - = note: this error originates in the macro `__inline_mac_impl` (in Nightly builds, run with -Z macro-backtrace for more info) +LL | **&mut a.prim = 0; + | ^^^^^^^^^^^^ help: try: `a.prim` error: immediately dereferencing a reference - --> tests/ui/deref_addrof.rs:71:17 + --> tests/ui/deref_addrof.rs:111:9 | -LL | inline!(*&mut $(@expr self)) - | ^^^^^^^^^^^^^^^^^^^ help: try: `$(@expr self)` +LL | (*&mut a.data).num = 42; + | ^^^^^^^^^^^^^^ help: try: `(*a.data)` + +error: immediately dereferencing a reference + --> tests/ui/deref_addrof.rs:113:9 + | +LL | (*&mut a.indirect.md)[3] = 1; + | ^^^^^^^^^^^^^^^^^^^^^ help: try: `(*a.indirect.md)` + +error: immediately dereferencing a reference + --> tests/ui/deref_addrof.rs:115:9 + | +LL | (*&mut a.indirect_arr[1].md)[3] = 1; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `(*a.indirect_arr[1].md)` + +error: immediately dereferencing a reference + --> tests/ui/deref_addrof.rs:117:9 + | +LL | (*&mut a.indirect_ref.md)[3] = 1; + | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `(*a.indirect_ref.md)` + +error: immediately dereferencing a reference + --> tests/ui/deref_addrof.rs:121:10 + | +LL | **&raw mut a.prim = 0; + | ^^^^^^^^^^^^^^^^ help: try: `a.prim` + +error: immediately dereferencing a reference + --> tests/ui/deref_addrof.rs:123:9 | - = note: this error originates in the macro `__inline_mac_impl` (in Nightly builds, run with -Z macro-backtrace for more info) +LL | (*&raw mut a.data).num = 42; + | ^^^^^^^^^^^^^^^^^^ help: try: `(*a.data)` -error: aborting due to 11 previous errors +error: aborting due to 18 previous errors diff --git a/src/tools/clippy/tests/ui/doc/doc-fixable.fixed b/src/tools/clippy/tests/ui/doc/doc-fixable.fixed index bbbd5973036..423a73734da 100644 --- a/src/tools/clippy/tests/ui/doc/doc-fixable.fixed +++ b/src/tools/clippy/tests/ui/doc/doc-fixable.fixed @@ -74,7 +74,7 @@ fn test_units() { /// GitHub GitLab /// IPv4 IPv6 /// ClojureScript CoffeeScript JavaScript PostScript PureScript TypeScript -/// WebAssembly +/// PowerPC WebAssembly /// NaN NaNs /// OAuth GraphQL /// OCaml diff --git a/src/tools/clippy/tests/ui/doc/doc-fixable.rs b/src/tools/clippy/tests/ui/doc/doc-fixable.rs index 1077d3580d3..8deffb4210e 100644 --- a/src/tools/clippy/tests/ui/doc/doc-fixable.rs +++ b/src/tools/clippy/tests/ui/doc/doc-fixable.rs @@ -74,7 +74,7 @@ fn test_units() { /// GitHub GitLab /// IPv4 IPv6 /// ClojureScript CoffeeScript JavaScript PostScript PureScript TypeScript -/// WebAssembly +/// PowerPC WebAssembly /// NaN NaNs /// OAuth GraphQL /// OCaml diff --git a/src/tools/clippy/tests/ui/double_ended_iterator_last.fixed b/src/tools/clippy/tests/ui/double_ended_iterator_last.fixed index be31ee5fb48..180a513d0f8 100644 --- a/src/tools/clippy/tests/ui/double_ended_iterator_last.fixed +++ b/src/tools/clippy/tests/ui/double_ended_iterator_last.fixed @@ -81,6 +81,11 @@ fn issue_14139() { let (subindex, _) = (index.by_ref().take(3), 42); let _ = subindex.last(); let _ = index.next(); + + let mut index = [true, true, false, false, false, true].iter(); + let subindex = (index.by_ref().take(3), 42); + let _ = subindex.0.last(); + let _ = index.next(); } fn drop_order() { @@ -108,6 +113,12 @@ fn drop_order() { let mut v = DropDeIterator(v.into_iter()); println!("Last element is {}", v.next_back().unwrap().0); //~^ ERROR: called `Iterator::last` on a `DoubleEndedIterator` + + let v = vec![S("four"), S("five"), S("six")]; + let mut v = (DropDeIterator(v.into_iter()), 42); + println!("Last element is {}", v.0.next_back().unwrap().0); + //~^ ERROR: called `Iterator::last` on a `DoubleEndedIterator` + println!("Done"); } diff --git a/src/tools/clippy/tests/ui/double_ended_iterator_last.rs b/src/tools/clippy/tests/ui/double_ended_iterator_last.rs index 30864e15bce..3dd72cfeaac 100644 --- a/src/tools/clippy/tests/ui/double_ended_iterator_last.rs +++ b/src/tools/clippy/tests/ui/double_ended_iterator_last.rs @@ -81,6 +81,11 @@ fn issue_14139() { let (subindex, _) = (index.by_ref().take(3), 42); let _ = subindex.last(); let _ = index.next(); + + let mut index = [true, true, false, false, false, true].iter(); + let subindex = (index.by_ref().take(3), 42); + let _ = subindex.0.last(); + let _ = index.next(); } fn drop_order() { @@ -108,6 +113,12 @@ fn drop_order() { let v = DropDeIterator(v.into_iter()); println!("Last element is {}", v.last().unwrap().0); //~^ ERROR: called `Iterator::last` on a `DoubleEndedIterator` + + let v = vec![S("four"), S("five"), S("six")]; + let v = (DropDeIterator(v.into_iter()), 42); + println!("Last element is {}", v.0.last().unwrap().0); + //~^ ERROR: called `Iterator::last` on a `DoubleEndedIterator` + println!("Done"); } diff --git a/src/tools/clippy/tests/ui/double_ended_iterator_last.stderr b/src/tools/clippy/tests/ui/double_ended_iterator_last.stderr index 72a6ead47a9..0f0056be376 100644 --- a/src/tools/clippy/tests/ui/double_ended_iterator_last.stderr +++ b/src/tools/clippy/tests/ui/double_ended_iterator_last.stderr @@ -18,7 +18,7 @@ LL | let _ = DeIterator.last(); | help: try: `next_back()` error: called `Iterator::last` on a `DoubleEndedIterator`; this will needlessly iterate the entire iterator - --> tests/ui/double_ended_iterator_last.rs:109:36 + --> tests/ui/double_ended_iterator_last.rs:114:36 | LL | println!("Last element is {}", v.last().unwrap().0); | ^^^^^^^^ @@ -30,5 +30,18 @@ LL ~ let mut v = DropDeIterator(v.into_iter()); LL ~ println!("Last element is {}", v.next_back().unwrap().0); | -error: aborting due to 3 previous errors +error: called `Iterator::last` on a `DoubleEndedIterator`; this will needlessly iterate the entire iterator + --> tests/ui/double_ended_iterator_last.rs:119:36 + | +LL | println!("Last element is {}", v.0.last().unwrap().0); + | ^^^^^^^^^^ + | + = note: this change will alter drop order which may be undesirable +help: try + | +LL ~ let mut v = (DropDeIterator(v.into_iter()), 42); +LL ~ println!("Last element is {}", v.0.next_back().unwrap().0); + | + +error: aborting due to 4 previous errors diff --git a/src/tools/clippy/tests/ui/double_ended_iterator_last_unfixable.rs b/src/tools/clippy/tests/ui/double_ended_iterator_last_unfixable.rs deleted file mode 100644 index 73f62ac1246..00000000000 --- a/src/tools/clippy/tests/ui/double_ended_iterator_last_unfixable.rs +++ /dev/null @@ -1,39 +0,0 @@ -//@no-rustfix: requires manual changes -#![warn(clippy::double_ended_iterator_last)] - -// Should not be linted because applying the lint would move the original iterator. This can only be -// linted if the iterator is used thereafter. -fn main() { - let mut index = [true, true, false, false, false, true].iter(); - let subindex = (index.by_ref().take(3), 42); - let _ = subindex.0.last(); - let _ = index.next(); -} - -fn drop_order() { - struct DropDeIterator(std::vec::IntoIter<S>); - impl Iterator for DropDeIterator { - type Item = S; - fn next(&mut self) -> Option<Self::Item> { - self.0.next() - } - } - impl DoubleEndedIterator for DropDeIterator { - fn next_back(&mut self) -> Option<Self::Item> { - self.0.next_back() - } - } - - struct S(&'static str); - impl std::ops::Drop for S { - fn drop(&mut self) { - println!("Dropping {}", self.0); - } - } - - let v = vec![S("one"), S("two"), S("three")]; - let v = (DropDeIterator(v.into_iter()), 42); - println!("Last element is {}", v.0.last().unwrap().0); - //~^ ERROR: called `Iterator::last` on a `DoubleEndedIterator` - println!("Done"); -} diff --git a/src/tools/clippy/tests/ui/double_ended_iterator_last_unfixable.stderr b/src/tools/clippy/tests/ui/double_ended_iterator_last_unfixable.stderr deleted file mode 100644 index e330a22a354..00000000000 --- a/src/tools/clippy/tests/ui/double_ended_iterator_last_unfixable.stderr +++ /dev/null @@ -1,19 +0,0 @@ -error: called `Iterator::last` on a `DoubleEndedIterator`; this will needlessly iterate the entire iterator - --> tests/ui/double_ended_iterator_last_unfixable.rs:36:36 - | -LL | println!("Last element is {}", v.0.last().unwrap().0); - | ^^^^------ - | | - | help: try: `next_back()` - | - = note: this change will alter drop order which may be undesirable -note: this must be made mutable to use `.next_back()` - --> tests/ui/double_ended_iterator_last_unfixable.rs:36:36 - | -LL | println!("Last element is {}", v.0.last().unwrap().0); - | ^^^ - = note: `-D clippy::double-ended-iterator-last` implied by `-D warnings` - = help: to override `-D warnings` add `#[allow(clippy::double_ended_iterator_last)]` - -error: aborting due to 1 previous error - diff --git a/src/tools/clippy/tests/ui/eta.fixed b/src/tools/clippy/tests/ui/eta.fixed index c93b83f53ec..3d2b41b8fb8 100644 --- a/src/tools/clippy/tests/ui/eta.fixed +++ b/src/tools/clippy/tests/ui/eta.fixed @@ -1,3 +1,6 @@ +// we have some HELP annotations -- don't complain about them not being present everywhere +//@require-annotations-for-level: ERROR + #![warn(clippy::redundant_closure, clippy::redundant_closure_for_method_calls)] #![allow(unused)] #![allow( @@ -561,3 +564,29 @@ fn issue_14789() { std::convert::identity, ); } + +fn issue8817() { + fn f(_: u32) -> u32 { + todo!() + } + let g = |_: u32| -> u32 { todo!() }; + struct S(u32); + enum MyError { + A(S), + } + + Some(5) + .map(f) + //~^ redundant_closure + //~| HELP: replace the closure with the function itself + .map(g) + //~^ redundant_closure + //~| HELP: replace the closure with the function itself + .map(S) + //~^ redundant_closure + //~| HELP: replace the closure with the tuple struct itself + .map(MyError::A) + //~^ redundant_closure + //~| HELP: replace the closure with the tuple variant itself + .unwrap(); // just for nicer formatting +} diff --git a/src/tools/clippy/tests/ui/eta.rs b/src/tools/clippy/tests/ui/eta.rs index 273c8b21f4a..79d1103410d 100644 --- a/src/tools/clippy/tests/ui/eta.rs +++ b/src/tools/clippy/tests/ui/eta.rs @@ -1,3 +1,6 @@ +// we have some HELP annotations -- don't complain about them not being present everywhere +//@require-annotations-for-level: ERROR + #![warn(clippy::redundant_closure, clippy::redundant_closure_for_method_calls)] #![allow(unused)] #![allow( @@ -561,3 +564,29 @@ fn issue_14789() { std::convert::identity, ); } + +fn issue8817() { + fn f(_: u32) -> u32 { + todo!() + } + let g = |_: u32| -> u32 { todo!() }; + struct S(u32); + enum MyError { + A(S), + } + + Some(5) + .map(|n| f(n)) + //~^ redundant_closure + //~| HELP: replace the closure with the function itself + .map(|n| g(n)) + //~^ redundant_closure + //~| HELP: replace the closure with the function itself + .map(|n| S(n)) + //~^ redundant_closure + //~| HELP: replace the closure with the tuple struct itself + .map(|n| MyError::A(n)) + //~^ redundant_closure + //~| HELP: replace the closure with the tuple variant itself + .unwrap(); // just for nicer formatting +} diff --git a/src/tools/clippy/tests/ui/eta.stderr b/src/tools/clippy/tests/ui/eta.stderr index 8bc08add2fa..aa32ed1a38e 100644 --- a/src/tools/clippy/tests/ui/eta.stderr +++ b/src/tools/clippy/tests/ui/eta.stderr @@ -1,5 +1,5 @@ error: redundant closure - --> tests/ui/eta.rs:31:27 + --> tests/ui/eta.rs:34:27 | LL | let a = Some(1u8).map(|a| foo(a)); | ^^^^^^^^^^ help: replace the closure with the function itself: `foo` @@ -8,31 +8,31 @@ LL | let a = Some(1u8).map(|a| foo(a)); = help: to override `-D warnings` add `#[allow(clippy::redundant_closure)]` error: redundant closure - --> tests/ui/eta.rs:36:40 + --> tests/ui/eta.rs:39:40 | LL | let _: Option<Vec<u8>> = true.then(|| vec![]); // special case vec! | ^^^^^^^^^ help: replace the closure with `Vec::new`: `std::vec::Vec::new` error: redundant closure - --> tests/ui/eta.rs:39:35 + --> tests/ui/eta.rs:42:35 | LL | let d = Some(1u8).map(|a| foo((|b| foo2(b))(a))); //is adjusted? | ^^^^^^^^^^^^^ help: replace the closure with the function itself: `foo2` error: redundant closure - --> tests/ui/eta.rs:42:26 + --> tests/ui/eta.rs:45:26 | LL | all(&[1, 2, 3], &&2, |x, y| below(x, y)); //is adjusted | ^^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `below` error: redundant closure - --> tests/ui/eta.rs:51:27 + --> tests/ui/eta.rs:54:27 | LL | let e = Some(1u8).map(|a| generic(a)); | ^^^^^^^^^^^^^^ help: replace the closure with the function itself: `generic` error: redundant closure - --> tests/ui/eta.rs:104:51 + --> tests/ui/eta.rs:107:51 | LL | let e = Some(TestStruct { some_ref: &i }).map(|a| a.foo()); | ^^^^^^^^^^^ help: replace the closure with the method itself: `TestStruct::foo` @@ -41,178 +41,202 @@ LL | let e = Some(TestStruct { some_ref: &i }).map(|a| a.foo()); = help: to override `-D warnings` add `#[allow(clippy::redundant_closure_for_method_calls)]` error: redundant closure - --> tests/ui/eta.rs:106:51 + --> tests/ui/eta.rs:109:51 | LL | let e = Some(TestStruct { some_ref: &i }).map(|a| a.trait_foo()); | ^^^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `TestTrait::trait_foo` error: redundant closure - --> tests/ui/eta.rs:109:42 + --> tests/ui/eta.rs:112:42 | LL | let e = Some(&mut vec![1, 2, 3]).map(|v| v.clear()); | ^^^^^^^^^^^^^ help: replace the closure with the method itself: `std::vec::Vec::clear` error: redundant closure - --> tests/ui/eta.rs:114:29 + --> tests/ui/eta.rs:117:29 | LL | let e = Some("str").map(|s| s.to_string()); | ^^^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `std::string::ToString::to_string` error: redundant closure - --> tests/ui/eta.rs:116:27 + --> tests/ui/eta.rs:119:27 | LL | let e = Some('a').map(|s| s.to_uppercase()); | ^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `char::to_uppercase` error: redundant closure - --> tests/ui/eta.rs:119:65 + --> tests/ui/eta.rs:122:65 | LL | let e: std::vec::Vec<char> = vec!['a', 'b', 'c'].iter().map(|c| c.to_ascii_uppercase()).collect(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `char::to_ascii_uppercase` error: redundant closure - --> tests/ui/eta.rs:136:23 + --> tests/ui/eta.rs:139:23 | LL | let _ = x.map(|x| x.parse::<i16>()); | ^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `str::parse::<i16>` error: redundant closure - --> tests/ui/eta.rs:189:22 + --> tests/ui/eta.rs:192:22 | LL | requires_fn_once(|| x()); | ^^^^^^ help: replace the closure with the function itself: `x` error: redundant closure - --> tests/ui/eta.rs:197:27 + --> tests/ui/eta.rs:200:27 | LL | let a = Some(1u8).map(|a| foo_ptr(a)); | ^^^^^^^^^^^^^^ help: replace the closure with the function itself: `foo_ptr` error: redundant closure - --> tests/ui/eta.rs:203:27 + --> tests/ui/eta.rs:206:27 | LL | let a = Some(1u8).map(|a| closure(a)); | ^^^^^^^^^^^^^^ help: replace the closure with the function itself: `closure` error: redundant closure - --> tests/ui/eta.rs:236:28 + --> tests/ui/eta.rs:239:28 | LL | x.into_iter().for_each(|x| add_to_res(x)); | ^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `&mut add_to_res` error: redundant closure - --> tests/ui/eta.rs:238:28 + --> tests/ui/eta.rs:241:28 | LL | y.into_iter().for_each(|x| add_to_res(x)); | ^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `&mut add_to_res` error: redundant closure - --> tests/ui/eta.rs:240:28 + --> tests/ui/eta.rs:243:28 | LL | z.into_iter().for_each(|x| add_to_res(x)); | ^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `add_to_res` error: redundant closure - --> tests/ui/eta.rs:248:21 + --> tests/ui/eta.rs:251:21 | LL | Some(1).map(|n| closure(n)); | ^^^^^^^^^^^^^^ help: replace the closure with the function itself: `&mut closure` error: redundant closure - --> tests/ui/eta.rs:253:21 + --> tests/ui/eta.rs:256:21 | LL | Some(1).map(|n| in_loop(n)); | ^^^^^^^^^^^^^^ help: replace the closure with the function itself: `in_loop` error: redundant closure - --> tests/ui/eta.rs:347:18 + --> tests/ui/eta.rs:350:18 | LL | takes_fn_mut(|| f()); | ^^^^^^ help: replace the closure with the function itself: `&mut f` error: redundant closure - --> tests/ui/eta.rs:351:19 + --> tests/ui/eta.rs:354:19 | LL | takes_fn_once(|| f()); | ^^^^^^ help: replace the closure with the function itself: `&mut f` error: redundant closure - --> tests/ui/eta.rs:356:26 + --> tests/ui/eta.rs:359:26 | LL | move || takes_fn_mut(|| f_used_once()) | ^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `&mut f_used_once` error: redundant closure - --> tests/ui/eta.rs:369:19 + --> tests/ui/eta.rs:372:19 | LL | array_opt.map(|a| a.as_slice()); | ^^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `<[u8; 3]>::as_slice` error: redundant closure - --> tests/ui/eta.rs:373:19 + --> tests/ui/eta.rs:376:19 | LL | slice_opt.map(|s| s.len()); | ^^^^^^^^^^^ help: replace the closure with the method itself: `<[u8]>::len` error: redundant closure - --> tests/ui/eta.rs:377:17 + --> tests/ui/eta.rs:380:17 | LL | ptr_opt.map(|p| p.is_null()); | ^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `<*const usize>::is_null` error: redundant closure - --> tests/ui/eta.rs:382:17 + --> tests/ui/eta.rs:385:17 | LL | dyn_opt.map(|d| d.method_on_dyn()); | ^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `<dyn TestTrait>::method_on_dyn` error: redundant closure - --> tests/ui/eta.rs:443:19 + --> tests/ui/eta.rs:446:19 | LL | let _ = f(&0, |x, y| f2(x, y)); | ^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `f2` error: redundant closure - --> tests/ui/eta.rs:472:22 + --> tests/ui/eta.rs:475:22 | LL | test.map(|t| t.method()) | ^^^^^^^^^^^^^^ help: replace the closure with the method itself: `Test::method` error: redundant closure - --> tests/ui/eta.rs:477:22 + --> tests/ui/eta.rs:480:22 | LL | test.map(|t| t.method()) | ^^^^^^^^^^^^^^ help: replace the closure with the method itself: `super::Outer::method` error: redundant closure - --> tests/ui/eta.rs:491:18 + --> tests/ui/eta.rs:494:18 | LL | test.map(|t| t.method()) | ^^^^^^^^^^^^^^ help: replace the closure with the method itself: `test_mod::Test::method` error: redundant closure - --> tests/ui/eta.rs:499:30 + --> tests/ui/eta.rs:502:30 | LL | test.map(|t| t.method()) | ^^^^^^^^^^^^^^ help: replace the closure with the method itself: `crate::issue_10854::d::Test::method` error: redundant closure - --> tests/ui/eta.rs:519:38 + --> tests/ui/eta.rs:522:38 | LL | let x = Box::new(|| None.map(|x| f(x))); | ^^^^^^^^ help: replace the closure with the function itself: `&f` error: redundant closure - --> tests/ui/eta.rs:524:38 + --> tests/ui/eta.rs:527:38 | LL | let x = Box::new(|| None.map(|x| f(x))); | ^^^^^^^^ help: replace the closure with the function itself: `f` error: redundant closure - --> tests/ui/eta.rs:542:35 + --> tests/ui/eta.rs:545:35 | LL | let _field = bind.or_else(|| get_default()).unwrap(); | ^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `get_default` -error: aborting due to 35 previous errors +error: redundant closure + --> tests/ui/eta.rs:588:14 + | +LL | .map(|n| MyError::A(n)) + | ^^^^^^^^^^^^^^^^^ help: replace the closure with the tuple variant itself: `MyError::A` + +error: redundant closure + --> tests/ui/eta.rs:585:14 + | +LL | .map(|n| S(n)) + | ^^^^^^^^ help: replace the closure with the tuple struct itself: `S` + +error: redundant closure + --> tests/ui/eta.rs:582:14 + | +LL | .map(|n| g(n)) + | ^^^^^^^^ help: replace the closure with the function itself: `g` + +error: redundant closure + --> tests/ui/eta.rs:579:14 + | +LL | .map(|n| f(n)) + | ^^^^^^^^ help: replace the closure with the function itself: `f` + +error: aborting due to 39 previous errors diff --git a/src/tools/clippy/tests/ui/from_str_radix_10.fixed b/src/tools/clippy/tests/ui/from_str_radix_10.fixed index 4b8fd778685..47d24167e56 100644 --- a/src/tools/clippy/tests/ui/from_str_radix_10.fixed +++ b/src/tools/clippy/tests/ui/from_str_radix_10.fixed @@ -74,3 +74,13 @@ fn issue_12731() { let _ = u32::from_str_radix("123", 10); } } + +fn fix_str_ref_check() { + #![allow(clippy::needless_borrow)] + let s = "1"; + let _ = s.parse::<u32>().unwrap(); + //~^ from_str_radix_10 + let s_ref = &s; + let _ = s_ref.parse::<u32>().unwrap(); + //~^ from_str_radix_10 +} diff --git a/src/tools/clippy/tests/ui/from_str_radix_10.rs b/src/tools/clippy/tests/ui/from_str_radix_10.rs index 89002b11a99..952e19b57a0 100644 --- a/src/tools/clippy/tests/ui/from_str_radix_10.rs +++ b/src/tools/clippy/tests/ui/from_str_radix_10.rs @@ -74,3 +74,13 @@ fn issue_12731() { let _ = u32::from_str_radix("123", 10); } } + +fn fix_str_ref_check() { + #![allow(clippy::needless_borrow)] + let s = "1"; + let _ = u32::from_str_radix(&s, 10).unwrap(); + //~^ from_str_radix_10 + let s_ref = &s; + let _ = u32::from_str_radix(&s_ref, 10).unwrap(); + //~^ from_str_radix_10 +} diff --git a/src/tools/clippy/tests/ui/from_str_radix_10.stderr b/src/tools/clippy/tests/ui/from_str_radix_10.stderr index c693e8f50ff..d4e6c3657f2 100644 --- a/src/tools/clippy/tests/ui/from_str_radix_10.stderr +++ b/src/tools/clippy/tests/ui/from_str_radix_10.stderr @@ -49,5 +49,17 @@ error: this call to `from_str_radix` can be replaced with a call to `str::parse` LL | i32::from_str_radix(&stringier, 10)?; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `stringier.parse::<i32>()` -error: aborting due to 8 previous errors +error: this call to `from_str_radix` can be replaced with a call to `str::parse` + --> tests/ui/from_str_radix_10.rs:81:13 + | +LL | let _ = u32::from_str_radix(&s, 10).unwrap(); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.parse::<u32>()` + +error: this call to `from_str_radix` can be replaced with a call to `str::parse` + --> tests/ui/from_str_radix_10.rs:84:13 + | +LL | let _ = u32::from_str_radix(&s_ref, 10).unwrap(); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s_ref.parse::<u32>()` + +error: aborting due to 10 previous errors diff --git a/src/tools/clippy/tests/ui/functions_maxlines.rs b/src/tools/clippy/tests/ui/functions_maxlines.rs index e0990dadaaa..b0714552461 100644 --- a/src/tools/clippy/tests/ui/functions_maxlines.rs +++ b/src/tools/clippy/tests/ui/functions_maxlines.rs @@ -1,3 +1,4 @@ +#![allow(clippy::unused_unit, clippy::missing_safety_doc)] #![warn(clippy::too_many_lines)] fn good_lines() { @@ -55,7 +56,8 @@ fn good_lines() { println!("This is good."); } -fn bad_lines() { +#[allow(unused)] // the attr shouldn't get included in the highlight +pub async unsafe extern "Rust" fn bad_lines() -> () { //~^ too_many_lines println!("Dont get confused by braces: {{}}"); @@ -162,4 +164,115 @@ fn bad_lines() { println!("This is bad."); } +struct Foo; +impl Foo { + #[allow(unused)] // the attr shouldn't get included in the highlight + pub async unsafe extern "Rust" fn bad_lines() -> () { + //~^ too_many_lines + + println!("Dont get confused by braces: {{}}"); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + println!("This is bad."); + } +} + fn main() {} diff --git a/src/tools/clippy/tests/ui/functions_maxlines.stderr b/src/tools/clippy/tests/ui/functions_maxlines.stderr index f42a2b2a22a..4c3faf45c47 100644 --- a/src/tools/clippy/tests/ui/functions_maxlines.stderr +++ b/src/tools/clippy/tests/ui/functions_maxlines.stderr @@ -1,17 +1,17 @@ -error: this function has too many lines (102/100) - --> tests/ui/functions_maxlines.rs:58:1 +error: this function has too many lines (104/100) + --> tests/ui/functions_maxlines.rs:60:1 | -LL | / fn bad_lines() { -LL | | -LL | | -LL | | println!("Dont get confused by braces: {{}}"); -... | -LL | | println!("This is bad."); -LL | | } - | |_^ +LL | pub async unsafe extern "Rust" fn bad_lines() -> () { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: `-D clippy::too-many-lines` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(clippy::too_many_lines)]` -error: aborting due to 1 previous error +error: this function has too many lines (104/100) + --> tests/ui/functions_maxlines.rs:170:5 + | +LL | pub async unsafe extern "Rust" fn bad_lines() -> () { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: aborting due to 2 previous errors diff --git a/src/tools/clippy/tests/ui/infinite_loops.rs b/src/tools/clippy/tests/ui/infinite_loops.rs index fcd1f795fff..9b8c3933197 100644 --- a/src/tools/clippy/tests/ui/infinite_loops.rs +++ b/src/tools/clippy/tests/ui/infinite_loops.rs @@ -450,4 +450,75 @@ mod issue_12338 { } } +#[allow(clippy::let_underscore_future, clippy::empty_loop)] +mod issue_14000 { + use super::do_something; + + async fn foo() { + let _ = async move { + loop { + //~^ infinite_loop + do_something(); + } + } + .await; + let _ = async move { + loop { + //~^ infinite_loop + continue; + } + } + .await; + } + + fn bar() { + let _ = async move { + loop { + do_something(); + } + }; + + let _ = async move { + loop { + continue; + } + }; + } +} + +#[allow(clippy::let_underscore_future)] +mod tokio_spawn_test { + use super::do_something; + + fn install_ticker() { + // This should NOT trigger the lint because the async block is spawned, not awaited + std::thread::spawn(move || { + async move { + loop { + // This loop should not trigger infinite_loop lint + do_something(); + } + } + }); + } + + fn spawn_async_block() { + // This should NOT trigger the lint because the async block is not awaited + let _handle = async move { + loop { + do_something(); + } + }; + } + + fn await_async_block() { + // This SHOULD trigger the lint because the async block is awaited + let _ = async move { + loop { + do_something(); + } + }; + } +} + fn main() {} diff --git a/src/tools/clippy/tests/ui/infinite_loops.stderr b/src/tools/clippy/tests/ui/infinite_loops.stderr index 4d02636ef4a..4c6b6f725f1 100644 --- a/src/tools/clippy/tests/ui/infinite_loops.stderr +++ b/src/tools/clippy/tests/ui/infinite_loops.stderr @@ -311,5 +311,27 @@ help: if this is intentional, consider specifying `!` as function return LL | fn continue_outer() -> ! { | ++++ -error: aborting due to 21 previous errors +error: infinite loop detected + --> tests/ui/infinite_loops.rs:459:13 + | +LL | / loop { +LL | | +LL | | do_something(); +LL | | } + | |_____________^ + | + = help: if this is not intended, try adding a `break` or `return` condition in the loop + +error: infinite loop detected + --> tests/ui/infinite_loops.rs:466:13 + | +LL | / loop { +LL | | +LL | | continue; +LL | | } + | |_____________^ + | + = help: if this is not intended, try adding a `break` or `return` condition in the loop + +error: aborting due to 23 previous errors diff --git a/src/tools/clippy/tests/ui/match_bool.fixed b/src/tools/clippy/tests/ui/match_bool.fixed index 1dfb82db120..876ae935afd 100644 --- a/src/tools/clippy/tests/ui/match_bool.fixed +++ b/src/tools/clippy/tests/ui/match_bool.fixed @@ -61,4 +61,17 @@ fn issue14099() { } } } +fn issue15351() { + let mut d = false; + match d { + false => println!("foo"), + ref mut d => *d = false, + } + + match d { + false => println!("foo"), + e => println!("{e}"), + } +} + fn main() {} diff --git a/src/tools/clippy/tests/ui/match_bool.rs b/src/tools/clippy/tests/ui/match_bool.rs index 719b4e51eb6..a134ad8346e 100644 --- a/src/tools/clippy/tests/ui/match_bool.rs +++ b/src/tools/clippy/tests/ui/match_bool.rs @@ -113,4 +113,17 @@ fn issue14099() { } } +fn issue15351() { + let mut d = false; + match d { + false => println!("foo"), + ref mut d => *d = false, + } + + match d { + false => println!("foo"), + e => println!("{e}"), + } +} + fn main() {} diff --git a/src/tools/clippy/tests/ui/match_ref_pats.fixed b/src/tools/clippy/tests/ui/match_ref_pats.fixed index 8add3da0c99..f727546838b 100644 --- a/src/tools/clippy/tests/ui/match_ref_pats.fixed +++ b/src/tools/clippy/tests/ui/match_ref_pats.fixed @@ -1,6 +1,12 @@ #![warn(clippy::match_ref_pats)] #![allow(dead_code, unused_variables)] -#![allow(clippy::enum_variant_names, clippy::equatable_if_let, clippy::uninlined_format_args)] +#![allow( + clippy::enum_variant_names, + clippy::equatable_if_let, + clippy::uninlined_format_args, + clippy::empty_loop, + clippy::diverging_sub_expression +)] fn ref_pats() { { @@ -120,4 +126,32 @@ mod issue_7740 { } } +mod issue15378 { + fn never_in_match() { + match unimplemented!() { + &_ => {}, + &&&42 => { + todo!() + }, + _ => {}, + } + + match panic!() { + &_ => {}, + &&&42 => { + todo!() + }, + _ => {}, + } + + match loop {} { + &_ => {}, + &&&42 => { + todo!() + }, + _ => {}, + } + } +} + fn main() {} diff --git a/src/tools/clippy/tests/ui/match_ref_pats.rs b/src/tools/clippy/tests/ui/match_ref_pats.rs index 07889b0dfc2..eca4d584acd 100644 --- a/src/tools/clippy/tests/ui/match_ref_pats.rs +++ b/src/tools/clippy/tests/ui/match_ref_pats.rs @@ -1,6 +1,12 @@ #![warn(clippy::match_ref_pats)] #![allow(dead_code, unused_variables)] -#![allow(clippy::enum_variant_names, clippy::equatable_if_let, clippy::uninlined_format_args)] +#![allow( + clippy::enum_variant_names, + clippy::equatable_if_let, + clippy::uninlined_format_args, + clippy::empty_loop, + clippy::diverging_sub_expression +)] fn ref_pats() { { @@ -120,4 +126,32 @@ mod issue_7740 { } } +mod issue15378 { + fn never_in_match() { + match unimplemented!() { + &_ => {}, + &&&42 => { + todo!() + }, + _ => {}, + } + + match panic!() { + &_ => {}, + &&&42 => { + todo!() + }, + _ => {}, + } + + match loop {} { + &_ => {}, + &&&42 => { + todo!() + }, + _ => {}, + } + } +} + fn main() {} diff --git a/src/tools/clippy/tests/ui/match_ref_pats.stderr b/src/tools/clippy/tests/ui/match_ref_pats.stderr index f81b290b32c..ecb08e6972d 100644 --- a/src/tools/clippy/tests/ui/match_ref_pats.stderr +++ b/src/tools/clippy/tests/ui/match_ref_pats.stderr @@ -1,5 +1,5 @@ error: you don't need to add `&` to all patterns - --> tests/ui/match_ref_pats.rs:8:9 + --> tests/ui/match_ref_pats.rs:14:9 | LL | / match v { LL | | @@ -19,7 +19,7 @@ LL ~ None => println!("none"), | error: you don't need to add `&` to both the expression and the patterns - --> tests/ui/match_ref_pats.rs:26:5 + --> tests/ui/match_ref_pats.rs:32:5 | LL | / match &w { LL | | @@ -37,7 +37,7 @@ LL ~ None => println!("none"), | error: redundant pattern matching, consider using `is_none()` - --> tests/ui/match_ref_pats.rs:39:12 + --> tests/ui/match_ref_pats.rs:45:12 | LL | if let &None = a { | -------^^^^^---- help: try: `if a.is_none()` @@ -46,13 +46,13 @@ LL | if let &None = a { = help: to override `-D warnings` add `#[allow(clippy::redundant_pattern_matching)]` error: redundant pattern matching, consider using `is_none()` - --> tests/ui/match_ref_pats.rs:45:12 + --> tests/ui/match_ref_pats.rs:51:12 | LL | if let &None = &b { | -------^^^^^----- help: try: `if b.is_none()` error: you don't need to add `&` to all patterns - --> tests/ui/match_ref_pats.rs:106:9 + --> tests/ui/match_ref_pats.rs:112:9 | LL | / match foobar_variant!(0) { LL | | diff --git a/src/tools/clippy/tests/ui/ptr_arg.stderr b/src/tools/clippy/tests/ui/ptr_arg.stderr index 87235057349..f32e83d8b81 100644 --- a/src/tools/clippy/tests/ui/ptr_arg.stderr +++ b/src/tools/clippy/tests/ui/ptr_arg.stderr @@ -268,10 +268,10 @@ LL | fn barbar(_x: &mut Vec<u32>, y: &mut String) { | ^^^^^^^^^^^ help: change this to: `&mut str` error: eliding a lifetime that's named elsewhere is confusing - --> tests/ui/ptr_arg.rs:314:36 + --> tests/ui/ptr_arg.rs:314:56 | LL | fn cow_good_ret_ty<'a>(input: &'a Cow<'a, str>) -> &str { - | ^^ ^^ ---- the same lifetime is elided here + | -- -- ^^^^ the same lifetime is elided here | | | | | the lifetime is named here | the lifetime is named here diff --git a/src/tools/clippy/tests/ui/ptr_as_ptr.fixed b/src/tools/clippy/tests/ui/ptr_as_ptr.fixed index 71fea6144e7..78e1ceb480a 100644 --- a/src/tools/clippy/tests/ui/ptr_as_ptr.fixed +++ b/src/tools/clippy/tests/ui/ptr_as_ptr.fixed @@ -2,8 +2,8 @@ #![warn(clippy::ptr_as_ptr)] -#[macro_use] extern crate proc_macros; +use proc_macros::{external, inline_macros, with_span}; mod issue_11278_a { #[derive(Debug)] @@ -53,11 +53,13 @@ fn main() { //~^ ptr_as_ptr // Make sure the lint is triggered inside a macro - let _ = inline!($ptr.cast::<i32>()); - //~^ ptr_as_ptr + // FIXME: `is_from_proc_macro` incorrectly stops the lint from firing here + let _ = inline!($ptr as *const i32); // Do not lint inside macros from external crates let _ = external!($ptr as *const i32); + + let _ = with_span!(expr $ptr as *const i32); } #[clippy::msrv = "1.37"] diff --git a/src/tools/clippy/tests/ui/ptr_as_ptr.rs b/src/tools/clippy/tests/ui/ptr_as_ptr.rs index 4d507592a1e..70732cf0a6c 100644 --- a/src/tools/clippy/tests/ui/ptr_as_ptr.rs +++ b/src/tools/clippy/tests/ui/ptr_as_ptr.rs @@ -2,8 +2,8 @@ #![warn(clippy::ptr_as_ptr)] -#[macro_use] extern crate proc_macros; +use proc_macros::{external, inline_macros, with_span}; mod issue_11278_a { #[derive(Debug)] @@ -53,11 +53,13 @@ fn main() { //~^ ptr_as_ptr // Make sure the lint is triggered inside a macro + // FIXME: `is_from_proc_macro` incorrectly stops the lint from firing here let _ = inline!($ptr as *const i32); - //~^ ptr_as_ptr // Do not lint inside macros from external crates let _ = external!($ptr as *const i32); + + let _ = with_span!(expr $ptr as *const i32); } #[clippy::msrv = "1.37"] diff --git a/src/tools/clippy/tests/ui/ptr_as_ptr.stderr b/src/tools/clippy/tests/ui/ptr_as_ptr.stderr index adad159bb0f..c0a2a4b6d20 100644 --- a/src/tools/clippy/tests/ui/ptr_as_ptr.stderr +++ b/src/tools/clippy/tests/ui/ptr_as_ptr.stderr @@ -38,174 +38,166 @@ LL | let _: *mut i32 = mut_ptr as _; | ^^^^^^^^^^^^ help: try `pointer::cast`, a safer alternative: `mut_ptr.cast()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:56:21 - | -LL | let _ = inline!($ptr as *const i32); - | ^^^^^^^^^^^^^^^^^^ help: try `pointer::cast`, a safer alternative: `$ptr.cast::<i32>()` - | - = note: this error originates in the macro `__inline_mac_fn_main` (in Nightly builds, run with -Z macro-backtrace for more info) - -error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:78:13 + --> tests/ui/ptr_as_ptr.rs:80:13 | LL | let _ = ptr as *const i32; | ^^^^^^^^^^^^^^^^^ help: try `pointer::cast`, a safer alternative: `ptr.cast::<i32>()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:80:13 + --> tests/ui/ptr_as_ptr.rs:82:13 | LL | let _ = mut_ptr as *mut i32; | ^^^^^^^^^^^^^^^^^^^ help: try `pointer::cast`, a safer alternative: `mut_ptr.cast::<i32>()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:88:9 + --> tests/ui/ptr_as_ptr.rs:90:9 | LL | ptr::null_mut() as *mut u32 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `ptr::null_mut::<u32>()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:93:9 + --> tests/ui/ptr_as_ptr.rs:95:9 | LL | std::ptr::null_mut() as *mut u32 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `std::ptr::null_mut::<u32>()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:99:9 + --> tests/ui/ptr_as_ptr.rs:101:9 | LL | ptr::null_mut() as *mut u32 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `ptr::null_mut::<u32>()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:104:9 + --> tests/ui/ptr_as_ptr.rs:106:9 | LL | core::ptr::null_mut() as *mut u32 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `core::ptr::null_mut::<u32>()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:110:9 + --> tests/ui/ptr_as_ptr.rs:112:9 | LL | ptr::null() as *const u32 | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `ptr::null::<u32>()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:115:9 + --> tests/ui/ptr_as_ptr.rs:117:9 | LL | std::ptr::null() as *const u32 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `std::ptr::null::<u32>()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:121:9 + --> tests/ui/ptr_as_ptr.rs:123:9 | LL | ptr::null() as *const u32 | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `ptr::null::<u32>()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:126:9 + --> tests/ui/ptr_as_ptr.rs:128:9 | LL | core::ptr::null() as *const u32 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `core::ptr::null::<u32>()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:134:9 + --> tests/ui/ptr_as_ptr.rs:136:9 | LL | ptr::null_mut() as *mut _ | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `ptr::null_mut()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:139:9 + --> tests/ui/ptr_as_ptr.rs:141:9 | LL | std::ptr::null_mut() as *mut _ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `std::ptr::null_mut()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:145:9 + --> tests/ui/ptr_as_ptr.rs:147:9 | LL | ptr::null_mut() as *mut _ | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `ptr::null_mut()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:150:9 + --> tests/ui/ptr_as_ptr.rs:152:9 | LL | core::ptr::null_mut() as *mut _ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `core::ptr::null_mut()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:156:9 + --> tests/ui/ptr_as_ptr.rs:158:9 | LL | ptr::null() as *const _ | ^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `ptr::null()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:161:9 + --> tests/ui/ptr_as_ptr.rs:163:9 | LL | std::ptr::null() as *const _ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `std::ptr::null()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:167:9 + --> tests/ui/ptr_as_ptr.rs:169:9 | LL | ptr::null() as *const _ | ^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `ptr::null()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:172:9 + --> tests/ui/ptr_as_ptr.rs:174:9 | LL | core::ptr::null() as *const _ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `core::ptr::null()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:180:9 + --> tests/ui/ptr_as_ptr.rs:182:9 | LL | ptr::null_mut() as _ | ^^^^^^^^^^^^^^^^^^^^ help: try call directly: `ptr::null_mut()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:185:9 + --> tests/ui/ptr_as_ptr.rs:187:9 | LL | std::ptr::null_mut() as _ | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `std::ptr::null_mut()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:191:9 + --> tests/ui/ptr_as_ptr.rs:193:9 | LL | ptr::null_mut() as _ | ^^^^^^^^^^^^^^^^^^^^ help: try call directly: `ptr::null_mut()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:196:9 + --> tests/ui/ptr_as_ptr.rs:198:9 | LL | core::ptr::null_mut() as _ | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `core::ptr::null_mut()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:202:9 + --> tests/ui/ptr_as_ptr.rs:204:9 | LL | ptr::null() as _ | ^^^^^^^^^^^^^^^^ help: try call directly: `ptr::null()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:207:9 + --> tests/ui/ptr_as_ptr.rs:209:9 | LL | std::ptr::null() as _ | ^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `std::ptr::null()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:213:9 + --> tests/ui/ptr_as_ptr.rs:215:9 | LL | ptr::null() as _ | ^^^^^^^^^^^^^^^^ help: try call directly: `ptr::null()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:218:9 + --> tests/ui/ptr_as_ptr.rs:220:9 | LL | core::ptr::null() as _ | ^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `core::ptr::null()` error: `as` casting between raw pointers without changing their constness - --> tests/ui/ptr_as_ptr.rs:226:43 + --> tests/ui/ptr_as_ptr.rs:228:43 | LL | let _: fn() = std::mem::transmute(std::ptr::null::<()>() as *const u8); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try call directly: `std::ptr::null::<u8>()` -error: aborting due to 34 previous errors +error: aborting due to 33 previous errors diff --git a/src/tools/clippy/tests/ui/similar_names.rs b/src/tools/clippy/tests/ui/similar_names.rs index 69b6ab6220b..55a141209f0 100644 --- a/src/tools/clippy/tests/ui/similar_names.rs +++ b/src/tools/clippy/tests/ui/similar_names.rs @@ -89,6 +89,10 @@ fn main() { let iter: i32; let item: i32; + + // 3 letter names are allowed to be similar + let kta: i32; + let ktv: i32; } fn foo() { diff --git a/src/tools/clippy/tests/ui/similar_names.stderr b/src/tools/clippy/tests/ui/similar_names.stderr index 8d722fb8b56..c226f73d4db 100644 --- a/src/tools/clippy/tests/ui/similar_names.stderr +++ b/src/tools/clippy/tests/ui/similar_names.stderr @@ -49,13 +49,13 @@ LL | let parser: i32; | ^^^^^^ error: binding's name is too similar to existing binding - --> tests/ui/similar_names.rs:98:16 + --> tests/ui/similar_names.rs:102:16 | LL | bpple: sprang, | ^^^^^^ | note: existing binding defined here - --> tests/ui/similar_names.rs:97:16 + --> tests/ui/similar_names.rs:101:16 | LL | apple: spring, | ^^^^^^ diff --git a/src/tools/clippy/tests/ui/transmute.rs b/src/tools/clippy/tests/ui/transmute.rs index e968e7a5924..e7099104f94 100644 --- a/src/tools/clippy/tests/ui/transmute.rs +++ b/src/tools/clippy/tests/ui/transmute.rs @@ -4,6 +4,7 @@ dead_code, clippy::borrow_as_ptr, unnecessary_transmutes, + integer_to_ptr_transmutes, clippy::needless_lifetimes, clippy::missing_transmute_annotations )] @@ -60,12 +61,10 @@ fn useless() { //~^ useless_transmute let _: *const usize = std::mem::transmute(5_isize); - //~^ useless_transmute let _ = std::ptr::dangling::<usize>(); let _: *const usize = std::mem::transmute(1 + 1usize); - //~^ useless_transmute let _ = (1 + 1_usize) as *const usize; } diff --git a/src/tools/clippy/tests/ui/transmute.stderr b/src/tools/clippy/tests/ui/transmute.stderr index 79528ec06f1..9478db09481 100644 --- a/src/tools/clippy/tests/ui/transmute.stderr +++ b/src/tools/clippy/tests/ui/transmute.stderr @@ -1,5 +1,5 @@ error: transmute from a reference to a pointer - --> tests/ui/transmute.rs:33:27 + --> tests/ui/transmute.rs:34:27 | LL | let _: *const T = core::mem::transmute(t); | ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `t as *const T` @@ -8,61 +8,49 @@ LL | let _: *const T = core::mem::transmute(t); = help: to override `-D warnings` add `#[allow(clippy::useless_transmute)]` error: transmute from a reference to a pointer - --> tests/ui/transmute.rs:36:25 + --> tests/ui/transmute.rs:37:25 | LL | let _: *mut T = core::mem::transmute(t); | ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `t as *const T as *mut T` error: transmute from a reference to a pointer - --> tests/ui/transmute.rs:39:27 + --> tests/ui/transmute.rs:40:27 | LL | let _: *const U = core::mem::transmute(t); | ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `t as *const T as *const U` error: transmute from a type (`std::vec::Vec<i32>`) to itself - --> tests/ui/transmute.rs:47:27 + --> tests/ui/transmute.rs:48:27 | LL | let _: Vec<i32> = core::mem::transmute(my_vec()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: transmute from a type (`std::vec::Vec<i32>`) to itself - --> tests/ui/transmute.rs:50:27 + --> tests/ui/transmute.rs:51:27 | LL | let _: Vec<i32> = core::mem::transmute(my_vec()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: transmute from a type (`std::vec::Vec<i32>`) to itself - --> tests/ui/transmute.rs:53:27 + --> tests/ui/transmute.rs:54:27 | LL | let _: Vec<i32> = std::mem::transmute(my_vec()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: transmute from a type (`std::vec::Vec<i32>`) to itself - --> tests/ui/transmute.rs:56:27 + --> tests/ui/transmute.rs:57:27 | LL | let _: Vec<i32> = std::mem::transmute(my_vec()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: transmute from a type (`std::vec::Vec<i32>`) to itself - --> tests/ui/transmute.rs:59:27 + --> tests/ui/transmute.rs:60:27 | LL | let _: Vec<i32> = my_transmute(my_vec()); | ^^^^^^^^^^^^^^^^^^^^^^ -error: transmute from an integer to a pointer - --> tests/ui/transmute.rs:62:31 - | -LL | let _: *const usize = std::mem::transmute(5_isize); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `5_isize as *const usize` - -error: transmute from an integer to a pointer - --> tests/ui/transmute.rs:67:31 - | -LL | let _: *const usize = std::mem::transmute(1 + 1usize); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `(1 + 1usize) as *const usize` - error: transmute from a type (`*const Usize`) to the type that it points to (`Usize`) - --> tests/ui/transmute.rs:99:24 + --> tests/ui/transmute.rs:98:24 | LL | let _: Usize = core::mem::transmute(int_const_ptr); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -71,25 +59,25 @@ LL | let _: Usize = core::mem::transmute(int_const_ptr); = help: to override `-D warnings` add `#[allow(clippy::crosspointer_transmute)]` error: transmute from a type (`*mut Usize`) to the type that it points to (`Usize`) - --> tests/ui/transmute.rs:102:24 + --> tests/ui/transmute.rs:101:24 | LL | let _: Usize = core::mem::transmute(int_mut_ptr); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: transmute from a type (`Usize`) to a pointer to that type (`*const Usize`) - --> tests/ui/transmute.rs:105:31 + --> tests/ui/transmute.rs:104:31 | LL | let _: *const Usize = core::mem::transmute(my_int()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: transmute from a type (`Usize`) to a pointer to that type (`*mut Usize`) - --> tests/ui/transmute.rs:108:29 + --> tests/ui/transmute.rs:107:29 | LL | let _: *mut Usize = core::mem::transmute(my_int()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: transmute from a `u8` to a `bool` - --> tests/ui/transmute.rs:115:28 + --> tests/ui/transmute.rs:114:28 | LL | let _: bool = unsafe { std::mem::transmute(0_u8) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `0_u8 != 0` @@ -98,7 +86,7 @@ LL | let _: bool = unsafe { std::mem::transmute(0_u8) }; = help: to override `-D warnings` add `#[allow(clippy::transmute_int_to_bool)]` error: transmute from a `&[u8]` to a `&str` - --> tests/ui/transmute.rs:122:28 + --> tests/ui/transmute.rs:121:28 | LL | let _: &str = unsafe { std::mem::transmute(B) }; | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::str::from_utf8(B).unwrap()` @@ -107,16 +95,16 @@ LL | let _: &str = unsafe { std::mem::transmute(B) }; = help: to override `-D warnings` add `#[allow(clippy::transmute_bytes_to_str)]` error: transmute from a `&mut [u8]` to a `&mut str` - --> tests/ui/transmute.rs:125:32 + --> tests/ui/transmute.rs:124:32 | LL | let _: &mut str = unsafe { std::mem::transmute(mb) }; | ^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::str::from_utf8_mut(mb).unwrap()` error: transmute from a `&[u8]` to a `&str` - --> tests/ui/transmute.rs:128:30 + --> tests/ui/transmute.rs:127:30 | LL | const _: &str = unsafe { std::mem::transmute(B) }; | ^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::str::from_utf8_unchecked(B)` -error: aborting due to 18 previous errors +error: aborting due to 16 previous errors diff --git a/src/tools/clippy/tests/ui/transmutes_expressible_as_ptr_casts.fixed b/src/tools/clippy/tests/ui/transmutes_expressible_as_ptr_casts.fixed index e7ad2a1cbbc..02f67f79e2b 100644 --- a/src/tools/clippy/tests/ui/transmutes_expressible_as_ptr_casts.fixed +++ b/src/tools/clippy/tests/ui/transmutes_expressible_as_ptr_casts.fixed @@ -13,9 +13,6 @@ fn main() { // We should see an error message for each transmute, and no error messages for // the casts, since the casts are the recommended fixes. - // e is an integer and U is *U_0, while U_0: Sized; addr-ptr-cast - let _ptr_i32_transmute = unsafe { usize::MAX as *const i32 }; - //~^ useless_transmute let ptr_i32 = usize::MAX as *const i32; // e has type *T, U is *U_0, and either U_0: Sized ... diff --git a/src/tools/clippy/tests/ui/transmutes_expressible_as_ptr_casts.rs b/src/tools/clippy/tests/ui/transmutes_expressible_as_ptr_casts.rs index 42a81777a82..c5e156405eb 100644 --- a/src/tools/clippy/tests/ui/transmutes_expressible_as_ptr_casts.rs +++ b/src/tools/clippy/tests/ui/transmutes_expressible_as_ptr_casts.rs @@ -13,9 +13,6 @@ fn main() { // We should see an error message for each transmute, and no error messages for // the casts, since the casts are the recommended fixes. - // e is an integer and U is *U_0, while U_0: Sized; addr-ptr-cast - let _ptr_i32_transmute = unsafe { transmute::<usize, *const i32>(usize::MAX) }; - //~^ useless_transmute let ptr_i32 = usize::MAX as *const i32; // e has type *T, U is *U_0, and either U_0: Sized ... diff --git a/src/tools/clippy/tests/ui/transmutes_expressible_as_ptr_casts.stderr b/src/tools/clippy/tests/ui/transmutes_expressible_as_ptr_casts.stderr index 7746f087cc7..f39a64d57eb 100644 --- a/src/tools/clippy/tests/ui/transmutes_expressible_as_ptr_casts.stderr +++ b/src/tools/clippy/tests/ui/transmutes_expressible_as_ptr_casts.stderr @@ -1,14 +1,5 @@ -error: transmute from an integer to a pointer - --> tests/ui/transmutes_expressible_as_ptr_casts.rs:17:39 - | -LL | let _ptr_i32_transmute = unsafe { transmute::<usize, *const i32>(usize::MAX) }; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `usize::MAX as *const i32` - | - = note: `-D clippy::useless-transmute` implied by `-D warnings` - = help: to override `-D warnings` add `#[allow(clippy::useless_transmute)]` - error: transmute from a pointer to a pointer - --> tests/ui/transmutes_expressible_as_ptr_casts.rs:22:38 + --> tests/ui/transmutes_expressible_as_ptr_casts.rs:19:38 | LL | let _ptr_i8_transmute = unsafe { transmute::<*const i32, *const i8>(ptr_i32) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -22,7 +13,7 @@ LL + let _ptr_i8_transmute = unsafe { ptr_i32.cast::<i8>() }; | error: transmute from a pointer to a pointer - --> tests/ui/transmutes_expressible_as_ptr_casts.rs:29:46 + --> tests/ui/transmutes_expressible_as_ptr_casts.rs:26:46 | LL | let _ptr_to_unsized_transmute = unsafe { transmute::<*const [i32], *const [u32]>(slice_ptr) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -34,7 +25,7 @@ LL + let _ptr_to_unsized_transmute = unsafe { slice_ptr as *const [u32] }; | error: transmute from `*const i32` to `usize` which could be expressed as a pointer cast instead - --> tests/ui/transmutes_expressible_as_ptr_casts.rs:36:50 + --> tests/ui/transmutes_expressible_as_ptr_casts.rs:33:50 | LL | let _usize_from_int_ptr_transmute = unsafe { transmute::<*const i32, usize>(ptr_i32) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `ptr_i32 as usize` @@ -43,40 +34,43 @@ LL | let _usize_from_int_ptr_transmute = unsafe { transmute::<*const i32, us = help: to override `-D warnings` add `#[allow(clippy::transmutes_expressible_as_ptr_casts)]` error: transmute from a reference to a pointer - --> tests/ui/transmutes_expressible_as_ptr_casts.rs:43:41 + --> tests/ui/transmutes_expressible_as_ptr_casts.rs:40:41 | LL | let _array_ptr_transmute = unsafe { transmute::<&[i32; 4], *const [i32; 4]>(array_ref) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `array_ref as *const [i32; 4]` + | + = note: `-D clippy::useless-transmute` implied by `-D warnings` + = help: to override `-D warnings` add `#[allow(clippy::useless_transmute)]` error: transmute from `fn(usize) -> u8` to `*const usize` which could be expressed as a pointer cast instead - --> tests/ui/transmutes_expressible_as_ptr_casts.rs:52:41 + --> tests/ui/transmutes_expressible_as_ptr_casts.rs:49:41 | LL | let _usize_ptr_transmute = unsafe { transmute::<fn(usize) -> u8, *const usize>(foo) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `foo as *const usize` error: transmute from `fn(usize) -> u8` to `usize` which could be expressed as a pointer cast instead - --> tests/ui/transmutes_expressible_as_ptr_casts.rs:57:49 + --> tests/ui/transmutes_expressible_as_ptr_casts.rs:54:49 | LL | let _usize_from_fn_ptr_transmute = unsafe { transmute::<fn(usize) -> u8, usize>(foo) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `foo as usize` error: transmute from `*const u32` to `usize` which could be expressed as a pointer cast instead - --> tests/ui/transmutes_expressible_as_ptr_casts.rs:61:36 + --> tests/ui/transmutes_expressible_as_ptr_casts.rs:58:36 | LL | let _usize_from_ref = unsafe { transmute::<*const u32, usize>(&1u32) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&1u32 as *const u32 as usize` error: transmute from a reference to a pointer - --> tests/ui/transmutes_expressible_as_ptr_casts.rs:73:14 + --> tests/ui/transmutes_expressible_as_ptr_casts.rs:70:14 | LL | unsafe { transmute::<&[i32; 1], *const u8>(in_param) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `in_param as *const [i32; 1] as *const u8` error: transmute from `fn()` to `*const u8` which could be expressed as a pointer cast instead - --> tests/ui/transmutes_expressible_as_ptr_casts.rs:92:28 + --> tests/ui/transmutes_expressible_as_ptr_casts.rs:89:28 | LL | let _x: u8 = unsafe { *std::mem::transmute::<fn(), *const u8>(f) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `(f as *const u8)` -error: aborting due to 10 previous errors +error: aborting due to 9 previous errors diff --git a/src/tools/clippy/tests/ui/unnecessary_operation.fixed b/src/tools/clippy/tests/ui/unnecessary_operation.fixed index ac9fa4de20a..db5409bc491 100644 --- a/src/tools/clippy/tests/ui/unnecessary_operation.fixed +++ b/src/tools/clippy/tests/ui/unnecessary_operation.fixed @@ -78,25 +78,25 @@ fn main() { //~^ unnecessary_operation get_number(); //~^ unnecessary_operation - 5;get_number(); + 5; get_number(); //~^ unnecessary_operation get_number(); //~^ unnecessary_operation get_number(); //~^ unnecessary_operation - 5;6;get_number(); + 5; 6; get_number(); //~^ unnecessary_operation get_number(); //~^ unnecessary_operation get_number(); //~^ unnecessary_operation - 5;get_number(); + 5; get_number(); //~^ unnecessary_operation - 42;get_number(); + 42; get_number(); //~^ unnecessary_operation assert!([42, 55].len() > get_usize()); //~^ unnecessary_operation - 42;get_number(); + 42; get_number(); //~^ unnecessary_operation get_number(); //~^ unnecessary_operation diff --git a/src/tools/clippy/tests/ui/unnecessary_operation.stderr b/src/tools/clippy/tests/ui/unnecessary_operation.stderr index 0fda1dfde19..3439ba2e33e 100644 --- a/src/tools/clippy/tests/ui/unnecessary_operation.stderr +++ b/src/tools/clippy/tests/ui/unnecessary_operation.stderr @@ -35,7 +35,7 @@ error: unnecessary operation --> tests/ui/unnecessary_operation.rs:81:5 | LL | 5 + get_number(); - | ^^^^^^^^^^^^^^^^^ help: statement can be reduced to: `5;get_number();` + | ^^^^^^^^^^^^^^^^^ help: statement can be reduced to: `5; get_number();` error: unnecessary operation --> tests/ui/unnecessary_operation.rs:83:5 @@ -53,7 +53,7 @@ error: unnecessary operation --> tests/ui/unnecessary_operation.rs:87:5 | LL | (5, 6, get_number()); - | ^^^^^^^^^^^^^^^^^^^^^ help: statement can be reduced to: `5;6;get_number();` + | ^^^^^^^^^^^^^^^^^^^^^ help: statement can be reduced to: `5; 6; get_number();` error: unnecessary operation --> tests/ui/unnecessary_operation.rs:89:5 @@ -71,13 +71,13 @@ error: unnecessary operation --> tests/ui/unnecessary_operation.rs:93:5 | LL | 5..get_number(); - | ^^^^^^^^^^^^^^^^ help: statement can be reduced to: `5;get_number();` + | ^^^^^^^^^^^^^^^^ help: statement can be reduced to: `5; get_number();` error: unnecessary operation --> tests/ui/unnecessary_operation.rs:95:5 | LL | [42, get_number()]; - | ^^^^^^^^^^^^^^^^^^^ help: statement can be reduced to: `42;get_number();` + | ^^^^^^^^^^^^^^^^^^^ help: statement can be reduced to: `42; get_number();` error: unnecessary operation --> tests/ui/unnecessary_operation.rs:97:5 @@ -89,7 +89,7 @@ error: unnecessary operation --> tests/ui/unnecessary_operation.rs:99:5 | LL | (42, get_number()).1; - | ^^^^^^^^^^^^^^^^^^^^^ help: statement can be reduced to: `42;get_number();` + | ^^^^^^^^^^^^^^^^^^^^^ help: statement can be reduced to: `42; get_number();` error: unnecessary operation --> tests/ui/unnecessary_operation.rs:101:5 diff --git a/src/tools/clippy/tests/ui/unnecessary_semicolon.edition2021.fixed b/src/tools/clippy/tests/ui/unnecessary_semicolon.edition2021.fixed index f10d804c8cc..797f1505f49 100644 --- a/src/tools/clippy/tests/ui/unnecessary_semicolon.edition2021.fixed +++ b/src/tools/clippy/tests/ui/unnecessary_semicolon.edition2021.fixed @@ -63,3 +63,12 @@ fn issue14100() -> bool { // cast into the `bool` function return type. if return true {}; } + +fn issue15426(x: u32) { + // removing the `;` would turn the stmt into an expr, but attrs aren't allowed on exprs + #[rustfmt::skip] + match x { + 0b00 => {} 0b01 => {} + 0b11 => {} _ => {} + }; +} diff --git a/src/tools/clippy/tests/ui/unnecessary_semicolon.edition2024.fixed b/src/tools/clippy/tests/ui/unnecessary_semicolon.edition2024.fixed index 32a3bb9b408..d2609cea000 100644 --- a/src/tools/clippy/tests/ui/unnecessary_semicolon.edition2024.fixed +++ b/src/tools/clippy/tests/ui/unnecessary_semicolon.edition2024.fixed @@ -63,3 +63,12 @@ fn issue14100() -> bool { // cast into the `bool` function return type. if return true {}; } + +fn issue15426(x: u32) { + // removing the `;` would turn the stmt into an expr, but attrs aren't allowed on exprs + #[rustfmt::skip] + match x { + 0b00 => {} 0b01 => {} + 0b11 => {} _ => {} + }; +} diff --git a/src/tools/clippy/tests/ui/unnecessary_semicolon.rs b/src/tools/clippy/tests/ui/unnecessary_semicolon.rs index 91b28218022..55f1ec84cb0 100644 --- a/src/tools/clippy/tests/ui/unnecessary_semicolon.rs +++ b/src/tools/clippy/tests/ui/unnecessary_semicolon.rs @@ -63,3 +63,12 @@ fn issue14100() -> bool { // cast into the `bool` function return type. if return true {}; } + +fn issue15426(x: u32) { + // removing the `;` would turn the stmt into an expr, but attrs aren't allowed on exprs + #[rustfmt::skip] + match x { + 0b00 => {} 0b01 => {} + 0b11 => {} _ => {} + }; +} diff --git a/src/tools/clippy/tests/ui/zero_sized_hashmap_values.rs b/src/tools/clippy/tests/ui/zero_sized_hashmap_values.rs index dcbfd16843d..ee2fd19b5ee 100644 --- a/src/tools/clippy/tests/ui/zero_sized_hashmap_values.rs +++ b/src/tools/clippy/tests/ui/zero_sized_hashmap_values.rs @@ -92,6 +92,14 @@ fn issue14822() { //~^ zero_sized_map_values } +fn issue15429() { + struct E<'a>(&'a [E<'a>]); + + // The assertion error happens when the type being evaluated has escaping bound vars + // as it cannot be wrapped in a dummy binder during size computation. + type F = dyn for<'a> FnOnce(HashMap<u32, E<'a>>) -> u32; +} + fn main() { let _: HashMap<String, ()> = HashMap::new(); //~^ zero_sized_map_values diff --git a/src/tools/clippy/tests/ui/zero_sized_hashmap_values.stderr b/src/tools/clippy/tests/ui/zero_sized_hashmap_values.stderr index d29491fa05c..52ffef280c1 100644 --- a/src/tools/clippy/tests/ui/zero_sized_hashmap_values.stderr +++ b/src/tools/clippy/tests/ui/zero_sized_hashmap_values.stderr @@ -89,7 +89,7 @@ LL | type D = HashMap<u32, S<E>>; = help: consider using a set instead error: map with zero-sized value type - --> tests/ui/zero_sized_hashmap_values.rs:96:34 + --> tests/ui/zero_sized_hashmap_values.rs:104:34 | LL | let _: HashMap<String, ()> = HashMap::new(); | ^^^^^^^ @@ -97,7 +97,7 @@ LL | let _: HashMap<String, ()> = HashMap::new(); = help: consider using a set instead error: map with zero-sized value type - --> tests/ui/zero_sized_hashmap_values.rs:96:12 + --> tests/ui/zero_sized_hashmap_values.rs:104:12 | LL | let _: HashMap<String, ()> = HashMap::new(); | ^^^^^^^^^^^^^^^^^^^ @@ -105,7 +105,7 @@ LL | let _: HashMap<String, ()> = HashMap::new(); = help: consider using a set instead error: map with zero-sized value type - --> tests/ui/zero_sized_hashmap_values.rs:102:12 + --> tests/ui/zero_sized_hashmap_values.rs:110:12 | LL | let _: HashMap<_, _> = std::iter::empty::<(String, ())>().collect(); | ^^^^^^^^^^^^^ diff --git a/src/tools/compiletest/src/common.rs b/src/tools/compiletest/src/common.rs index 2d49b1a7097..7fc80c1edb1 100644 --- a/src/tools/compiletest/src/common.rs +++ b/src/tools/compiletest/src/common.rs @@ -692,7 +692,9 @@ pub struct Config { pub minicore_path: Utf8PathBuf, /// Current codegen backend used. - pub codegen_backend: CodegenBackend, + pub default_codegen_backend: CodegenBackend, + /// Name/path of the backend to use instead of `default_codegen_backend`. + pub override_codegen_backend: Option<String>, } impl Config { @@ -796,7 +798,8 @@ impl Config { profiler_runtime: Default::default(), diff_command: Default::default(), minicore_path: Default::default(), - codegen_backend: CodegenBackend::Llvm, + default_codegen_backend: CodegenBackend::Llvm, + override_codegen_backend: None, } } diff --git a/src/tools/compiletest/src/directives.rs b/src/tools/compiletest/src/directives.rs index 13e694b7f03..f2ad049d526 100644 --- a/src/tools/compiletest/src/directives.rs +++ b/src/tools/compiletest/src/directives.rs @@ -205,6 +205,8 @@ pub struct TestProps { pub dont_require_annotations: HashSet<ErrorKind>, /// Whether pretty printers should be disabled in gdb. pub disable_gdb_pretty_printers: bool, + /// Compare the output by lines, rather than as a single string. + pub compare_output_by_lines: bool, } mod directives { @@ -254,6 +256,7 @@ mod directives { // This isn't a real directive, just one that is probably mistyped often pub const INCORRECT_COMPILER_FLAGS: &'static str = "compiler-flags"; pub const DISABLE_GDB_PRETTY_PRINTERS: &'static str = "disable-gdb-pretty-printers"; + pub const COMPARE_OUTPUT_BY_LINES: &'static str = "compare-output-by-lines"; } impl TestProps { @@ -310,6 +313,7 @@ impl TestProps { add_core_stubs: false, dont_require_annotations: Default::default(), disable_gdb_pretty_printers: false, + compare_output_by_lines: false, } } @@ -664,6 +668,11 @@ impl TestProps { DISABLE_GDB_PRETTY_PRINTERS, &mut self.disable_gdb_pretty_printers, ); + config.set_name_directive( + ln, + COMPARE_OUTPUT_BY_LINES, + &mut self.compare_output_by_lines, + ); }, ); @@ -1624,7 +1633,7 @@ fn ignore_backends( } } }) { - if config.codegen_backend == backend { + if config.default_codegen_backend == backend { return IgnoreDecision::Ignore { reason: format!("{} backend is marked as ignore", backend.as_str()), }; @@ -1651,12 +1660,12 @@ fn needs_backends( panic!("Invalid needs-backends value `{backend}` in `{path}`: {error}") } }) - .any(|backend| config.codegen_backend == backend) + .any(|backend| config.default_codegen_backend == backend) { return IgnoreDecision::Ignore { reason: format!( "{} backend is not part of required backends", - config.codegen_backend.as_str() + config.default_codegen_backend.as_str() ), }; } diff --git a/src/tools/compiletest/src/directives/directive_names.rs b/src/tools/compiletest/src/directives/directive_names.rs index f7955429d83..0ef84fb4594 100644 --- a/src/tools/compiletest/src/directives/directive_names.rs +++ b/src/tools/compiletest/src/directives/directive_names.rs @@ -17,6 +17,7 @@ pub(crate) const KNOWN_DIRECTIVE_NAMES: &[&str] = &[ "check-run-results", "check-stdout", "check-test-line-numbers-match", + "compare-output-by-lines", "compile-flags", "disable-gdb-pretty-printers", "doc-flags", @@ -194,6 +195,7 @@ pub(crate) const KNOWN_DIRECTIVE_NAMES: &[&str] = &[ "only-bpf", "only-cdb", "only-dist", + "only-eabihf", "only-elf", "only-emscripten", "only-gnu", diff --git a/src/tools/compiletest/src/lib.rs b/src/tools/compiletest/src/lib.rs index f5409e78341..469dd68207e 100644 --- a/src/tools/compiletest/src/lib.rs +++ b/src/tools/compiletest/src/lib.rs @@ -212,9 +212,15 @@ pub fn parse_config(args: Vec<String>) -> Config { ) .optopt( "", - "codegen-backend", + "default-codegen-backend", "the codegen backend currently used", "CODEGEN BACKEND NAME", + ) + .optopt( + "", + "override-codegen-backend", + "the codegen backend to use instead of the default one", + "CODEGEN BACKEND [NAME | PATH]", ); let (argv0, args_) = args.split_first().unwrap(); @@ -276,14 +282,17 @@ pub fn parse_config(args: Vec<String>) -> Config { || directives::extract_llvm_version_from_binary(&matches.opt_str("llvm-filecheck")?), ); - let codegen_backend = match matches.opt_str("codegen-backend").as_deref() { + let default_codegen_backend = match matches.opt_str("default-codegen-backend").as_deref() { Some(backend) => match CodegenBackend::try_from(backend) { Ok(backend) => backend, - Err(error) => panic!("invalid value `{backend}` for `--codegen-backend`: {error}"), + Err(error) => { + panic!("invalid value `{backend}` for `--defalt-codegen-backend`: {error}") + } }, // By default, it's always llvm. None => CodegenBackend::Llvm, }; + let override_codegen_backend = matches.opt_str("override-codegen-backend"); let run_ignored = matches.opt_present("ignored"); let with_rustc_debug_assertions = matches.opt_present("with-rustc-debug-assertions"); @@ -472,7 +481,8 @@ pub fn parse_config(args: Vec<String>) -> Config { minicore_path: opt_path(matches, "minicore-path"), - codegen_backend, + default_codegen_backend, + override_codegen_backend, } } @@ -812,13 +822,13 @@ fn collect_tests_from_dir( && let Some(Utf8Component::Normal(parent)) = components.next() && parent == "tests" && let Ok(backend) = CodegenBackend::try_from(backend) - && backend != cx.config.codegen_backend + && backend != cx.config.default_codegen_backend { // We ignore asm tests which don't match the current codegen backend. warning!( "Ignoring tests in `{dir}` because they don't match the configured codegen \ backend (`{}`)", - cx.config.codegen_backend.as_str(), + cx.config.default_codegen_backend.as_str(), ); return Ok(TestCollector::new()); } diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs index 821cb128647..739db8fa095 100644 --- a/src/tools/compiletest/src/runtest.rs +++ b/src/tools/compiletest/src/runtest.rs @@ -1558,6 +1558,11 @@ impl<'test> TestCx<'test> { rustc.arg("--sysroot").arg(&self.config.sysroot_base); } + // If the provided codegen backend is not LLVM, we need to pass it. + if let Some(ref backend) = self.config.override_codegen_backend { + rustc.arg(format!("-Zcodegen-backend={}", backend)); + } + // Optionally prevent default --target if specified in test compile-flags. let custom_target = self.props.compile_flags.iter().any(|x| x.starts_with("--target")); @@ -2749,7 +2754,11 @@ impl<'test> TestCx<'test> { // Wrapper tools set by `runner` might provide extra output on failure, // for example a WebAssembly runtime might print the stack trace of an // `unreachable` instruction by default. - let compare_output_by_lines = self.config.runner.is_some(); + // + // Also, some tests like `ui/parallel-rustc` have non-deterministic + // orders of output, so we need to compare by lines. + let compare_output_by_lines = + self.props.compare_output_by_lines || self.config.runner.is_some(); let tmp; let (expected, actual): (&str, &str) = if compare_output_by_lines { diff --git a/src/tools/miri/.github/workflows/ci.yml b/src/tools/miri/.github/workflows/ci.yml index c47f9695624..7d79c384f85 100644 --- a/src/tools/miri/.github/workflows/ci.yml +++ b/src/tools/miri/.github/workflows/ci.yml @@ -69,12 +69,6 @@ jobs: sudo apt update # Install needed packages sudo apt install $(echo "libatomic1: zlib1g-dev:" | sed 's/:/:${{ matrix.multiarch }}/g') - - name: Install rustup on Windows ARM - if: ${{ matrix.os == 'windows-11-arm' }} - run: | - curl -LOs https://static.rust-lang.org/rustup/dist/aarch64-pc-windows-msvc/rustup-init.exe - ./rustup-init.exe -y --no-modify-path - echo "$USERPROFILE/.cargo/bin" >> "$GITHUB_PATH" - uses: ./.github/workflows/setup with: toolchain_flags: "--host ${{ matrix.host_target }}" @@ -169,7 +163,13 @@ jobs: run: rustup toolchain install nightly --profile minimal - name: Install rustup-toolchain-install-master run: cargo install -f rustup-toolchain-install-master - - name: Push changes to a branch and create PR + # Create a token for the next step so it can create a PR that actually runs CI. + - uses: actions/create-github-app-token@v2 + id: app-token + with: + app-id: ${{ vars.APP_CLIENT_ID }} + private-key: ${{ secrets.APP_PRIVATE_KEY }} + - name: pull changes from rustc and create PR run: | # Make it easier to see what happens. set -x @@ -198,9 +198,9 @@ jobs: BRANCH="rustup-$(date -u +%Y-%m-%d)" git switch -c $BRANCH git push -u origin $BRANCH - gh pr create -B master --title 'Automatic Rustup' --body 'Please close and re-open this PR to trigger CI, then enable auto-merge.' + gh pr create -B master --title 'Automatic Rustup' --body "Update \`rustc\` to https://github.com/rust-lang/rust/commit/$(cat rust-version)." env: - GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} + GITHUB_TOKEN: ${{ steps.app-token.outputs.token }} cron-fail-notify: name: cronjob failure notification diff --git a/src/tools/miri/Cargo.toml b/src/tools/miri/Cargo.toml index 91dadf78a2f..99111092d39 100644 --- a/src/tools/miri/Cargo.toml +++ b/src/tools/miri/Cargo.toml @@ -78,6 +78,7 @@ native-lib = ["dep:libffi", "dep:libloading", "dep:capstone", "dep:ipc-channel", [lints.rust.unexpected_cfgs] level = "warn" +check-cfg = ['cfg(bootstrap)'] # Be aware that this file is inside a workspace when used via the # submodule in the rustc repo. That means there are many cargo features diff --git a/src/tools/miri/rust-version b/src/tools/miri/rust-version index 2178caf6396..59adc572eaa 100644 --- a/src/tools/miri/rust-version +++ b/src/tools/miri/rust-version @@ -1 +1 @@ -733dab558992d902d6d17576de1da768094e2cf3 +f605b57042ffeb320d7ae44490113a827139b766 diff --git a/src/tools/miri/src/diagnostics.rs b/src/tools/miri/src/diagnostics.rs index 9ecbd31c5b9..b5ca9601547 100644 --- a/src/tools/miri/src/diagnostics.rs +++ b/src/tools/miri/src/diagnostics.rs @@ -282,7 +282,8 @@ pub fn report_error<'tcx>( }, TreeBorrowsUb { title: _, details, history } => { let mut helps = vec![ - note!("this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental") + note!("this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental"), + note!("see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information"), ]; for m in details { helps.push(note!("{m}")); diff --git a/src/tools/miri/src/machine.rs b/src/tools/miri/src/machine.rs index 49021b1c4a2..0b2ce900414 100644 --- a/src/tools/miri/src/machine.rs +++ b/src/tools/miri/src/machine.rs @@ -12,10 +12,11 @@ use rand::rngs::StdRng; use rand::{Rng, SeedableRng}; use rustc_abi::{Align, ExternAbi, Size}; use rustc_apfloat::{Float, FloatConvert}; -use rustc_hir::attrs::InlineAttr; use rustc_data_structures::fx::{FxHashMap, FxHashSet}; #[allow(unused)] use rustc_data_structures::static_assert_size; +use rustc_hir::attrs::InlineAttr; +use rustc_middle::middle::codegen_fn_attrs::TargetFeatureKind; use rustc_middle::mir; use rustc_middle::query::TyCtxtAt; use rustc_middle::ty::layout::{ @@ -1076,7 +1077,7 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> { .target_features .iter() .filter(|&feature| { - !feature.implied && !ecx.tcx.sess.target_features.contains(&feature.name) + feature.kind != TargetFeatureKind::Implied && !ecx.tcx.sess.target_features.contains(&feature.name) }) .fold(String::new(), |mut s, feature| { if !s.is_empty() { @@ -1111,6 +1112,7 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> { ) -> InterpResult<'tcx, Option<(&'tcx mir::Body<'tcx>, ty::Instance<'tcx>)>> { // For foreign items, try to see if we can emulate them. if ecx.tcx.is_foreign_item(instance.def_id()) { + let _trace = enter_trace_span!("emulate_foreign_item"); // An external function call that does not have a MIR body. We either find MIR elsewhere // or emulate its effect. // This will be Ok(None) if we're emulating the intrinsic entirely within Miri (no need @@ -1123,6 +1125,7 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> { } // Otherwise, load the MIR. + let _trace = enter_trace_span!("load_mir"); interp_ok(Some((ecx.load_mir(instance.def, None)?, instance))) } @@ -1394,6 +1397,7 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> { GlobalDataRaceHandler::Genmc(genmc_ctx) => genmc_ctx.memory_load(machine, ptr.addr(), range.size)?, GlobalDataRaceHandler::Vclocks(_data_race) => { + let _trace = enter_trace_span!(data_race::before_memory_read); let AllocDataRaceHandler::Vclocks(data_race, weak_memory) = &alloc_extra.data_race else { unreachable!(); @@ -1429,6 +1433,7 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> { genmc_ctx.memory_store(machine, ptr.addr(), range.size)?; } GlobalDataRaceHandler::Vclocks(_global_state) => { + let _trace = enter_trace_span!(data_race::before_memory_write); let AllocDataRaceHandler::Vclocks(data_race, weak_memory) = &mut alloc_extra.data_race else { @@ -1465,6 +1470,7 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> { GlobalDataRaceHandler::Genmc(genmc_ctx) => genmc_ctx.handle_dealloc(machine, ptr.addr(), size, align, kind)?, GlobalDataRaceHandler::Vclocks(_global_state) => { + let _trace = enter_trace_span!(data_race::before_memory_deallocation); let data_race = alloc_extra.data_race.as_vclocks_mut().unwrap(); data_race.write( alloc_id, @@ -1675,6 +1681,7 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> { local: mir::Local, ) -> InterpResult<'tcx> { if let Some(data_race) = &frame.extra.data_race { + let _trace = enter_trace_span!(data_race::after_local_read); data_race.local_read(local, &ecx.machine); } interp_ok(()) @@ -1686,6 +1693,7 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> { storage_live: bool, ) -> InterpResult<'tcx> { if let Some(data_race) = &ecx.frame().extra.data_race { + let _trace = enter_trace_span!(data_race::after_local_write); data_race.local_write(local, storage_live, &ecx.machine); } interp_ok(()) @@ -1708,6 +1716,7 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> { if let Some(data_race) = &machine.threads.active_thread_stack().last().unwrap().extra.data_race { + let _trace = enter_trace_span!(data_race::after_local_moved_to_memory); data_race.local_moved_to_memory( local, alloc_info.data_race.as_vclocks_mut().unwrap(), diff --git a/src/tools/miri/src/operator.rs b/src/tools/miri/src/operator.rs index 3c3f2c28535..116f45f18dd 100644 --- a/src/tools/miri/src/operator.rs +++ b/src/tools/miri/src/operator.rs @@ -57,7 +57,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { let ptr = left.to_scalar().to_pointer(this)?; // We do the actual operation with usize-typed scalars. let left = ImmTy::from_uint(ptr.addr().bytes(), this.machine.layouts.usize); - let result = this.binary_op(bin_op, &left, &right)?; + let result = this.binary_op(bin_op, &left, right)?; // Construct a new pointer with the provenance of `ptr` (the LHS). let result_ptr = Pointer::new( ptr.provenance, diff --git a/src/tools/miri/src/shims/extern_static.rs b/src/tools/miri/src/shims/extern_static.rs index 49c0c380a08..c2527bf8e25 100644 --- a/src/tools/miri/src/shims/extern_static.rs +++ b/src/tools/miri/src/shims/extern_static.rs @@ -62,7 +62,7 @@ impl<'tcx> MiriMachine<'tcx> { } "android" => { Self::null_ptr_extern_statics(ecx, &["bsd_signal"])?; - Self::weak_symbol_extern_statics(ecx, &["signal", "getrandom"])?; + Self::weak_symbol_extern_statics(ecx, &["signal", "getrandom", "gettid"])?; } "windows" => { // "_tls_used" diff --git a/src/tools/miri/src/shims/foreign_items.rs b/src/tools/miri/src/shims/foreign_items.rs index 21545b68029..a700644b95d 100644 --- a/src/tools/miri/src/shims/foreign_items.rs +++ b/src/tools/miri/src/shims/foreign_items.rs @@ -5,6 +5,7 @@ use std::path::Path; use rustc_abi::{Align, AlignFromBytesError, CanonAbi, Size}; use rustc_apfloat::Float; use rustc_ast::expand::allocator::alloc_error_handler_name; +use rustc_hir::attrs::Linkage; use rustc_hir::def::DefKind; use rustc_hir::def_id::CrateNum; use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrFlags; @@ -138,7 +139,13 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { Entry::Occupied(e) => e.into_mut(), Entry::Vacant(e) => { // Find it if it was not cached. - let mut instance_and_crate: Option<(ty::Instance<'_>, CrateNum)> = None; + + struct SymbolTarget<'tcx> { + instance: ty::Instance<'tcx>, + cnum: CrateNum, + is_weak: bool, + } + let mut symbol_target: Option<SymbolTarget<'tcx>> = None; helpers::iter_exported_symbols(tcx, |cnum, def_id| { let attrs = tcx.codegen_fn_attrs(def_id); // Skip over imports of items. @@ -146,7 +153,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { return interp_ok(()); } // Skip over items without an explicitly defined symbol name. - if !(attrs.export_name.is_some() + if !(attrs.symbol_name.is_some() || attrs.flags.contains(CodegenFnAttrFlags::NO_MANGLE) || attrs.flags.contains(CodegenFnAttrFlags::RUSTC_STD_INTERNAL_SYMBOL)) { @@ -155,40 +162,80 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { let instance = Instance::mono(tcx, def_id); let symbol_name = tcx.symbol_name(instance).name; + let is_weak = attrs.linkage == Some(Linkage::WeakAny); if symbol_name == link_name.as_str() { - if let Some((original_instance, original_cnum)) = instance_and_crate { - // Make sure we are consistent wrt what is 'first' and 'second'. - let original_span = tcx.def_span(original_instance.def_id()).data(); - let span = tcx.def_span(def_id).data(); - if original_span < span { - throw_machine_stop!(TerminationInfo::MultipleSymbolDefinitions { - link_name, - first: original_span, - first_crate: tcx.crate_name(original_cnum), - second: span, - second_crate: tcx.crate_name(cnum), - }); - } else { - throw_machine_stop!(TerminationInfo::MultipleSymbolDefinitions { - link_name, - first: span, - first_crate: tcx.crate_name(cnum), - second: original_span, - second_crate: tcx.crate_name(original_cnum), - }); + if let Some(original) = &symbol_target { + // There is more than one definition with this name. What we do now + // depends on whether one or both definitions are weak. + match (is_weak, original.is_weak) { + (false, true) => { + // Original definition is a weak definition. Override it. + + symbol_target = Some(SymbolTarget { + instance: ty::Instance::mono(tcx, def_id), + cnum, + is_weak, + }); + } + (true, false) => { + // Current definition is a weak definition. Keep the original one. + } + (true, true) | (false, false) => { + // Either both definitions are non-weak or both are weak. In + // either case return an error. For weak definitions we error + // because it is unspecified which definition would have been + // picked by the linker. + + // Make sure we are consistent wrt what is 'first' and 'second'. + let original_span = + tcx.def_span(original.instance.def_id()).data(); + let span = tcx.def_span(def_id).data(); + if original_span < span { + throw_machine_stop!( + TerminationInfo::MultipleSymbolDefinitions { + link_name, + first: original_span, + first_crate: tcx.crate_name(original.cnum), + second: span, + second_crate: tcx.crate_name(cnum), + } + ); + } else { + throw_machine_stop!( + TerminationInfo::MultipleSymbolDefinitions { + link_name, + first: span, + first_crate: tcx.crate_name(cnum), + second: original_span, + second_crate: tcx.crate_name(original.cnum), + } + ); + } + } } + } else { + symbol_target = Some(SymbolTarget { + instance: ty::Instance::mono(tcx, def_id), + cnum, + is_weak, + }); } - if !matches!(tcx.def_kind(def_id), DefKind::Fn | DefKind::AssocFn) { - throw_ub_format!( - "attempt to call an exported symbol that is not defined as a function" - ); - } - instance_and_crate = Some((ty::Instance::mono(tcx, def_id), cnum)); } interp_ok(()) })?; - e.insert(instance_and_crate.map(|ic| ic.0)) + // Once we identified the instance corresponding to the symbol, ensure + // it is a function. It is okay to encounter non-functions in the search above + // as long as the final instance we arrive at is a function. + if let Some(SymbolTarget { instance, .. }) = symbol_target { + if !matches!(tcx.def_kind(instance.def_id()), DefKind::Fn | DefKind::AssocFn) { + throw_ub_format!( + "attempt to call an exported symbol that is not defined as a function" + ); + } + } + + e.insert(symbol_target.map(|SymbolTarget { instance, .. }| instance)) } }; match instance { diff --git a/src/tools/miri/src/shims/native_lib/mod.rs b/src/tools/miri/src/shims/native_lib/mod.rs index 36c18379cb8..74b9b704fea 100644 --- a/src/tools/miri/src/shims/native_lib/mod.rs +++ b/src/tools/miri/src/shims/native_lib/mod.rs @@ -242,13 +242,9 @@ trait EvalContextExtPriv<'tcx>: crate::MiriInterpCxExt<'tcx> { match evt { AccessEvent::Read(_) => { - // FIXME: ProvenanceMap should have something like get_range(). - let p_map = alloc.provenance(); - for idx in overlap { - // If a provenance was read by the foreign code, expose it. - if let Some((prov, _idx)) = p_map.get_byte(Size::from_bytes(idx), this) { - this.expose_provenance(prov)?; - } + // If a provenance was read by the foreign code, expose it. + for prov in alloc.provenance().get_range(this, overlap.into()) { + this.expose_provenance(prov)?; } } AccessEvent::Write(_, certain) => { diff --git a/src/tools/miri/src/shims/unix/android/foreign_items.rs b/src/tools/miri/src/shims/unix/android/foreign_items.rs index 04c5d28838b..6cb0d221fc0 100644 --- a/src/tools/miri/src/shims/unix/android/foreign_items.rs +++ b/src/tools/miri/src/shims/unix/android/foreign_items.rs @@ -4,13 +4,14 @@ use rustc_span::Symbol; use rustc_target::callconv::FnAbi; use crate::shims::unix::android::thread::prctl; +use crate::shims::unix::env::EvalContextExt as _; use crate::shims::unix::linux_like::epoll::EvalContextExt as _; use crate::shims::unix::linux_like::eventfd::EvalContextExt as _; use crate::shims::unix::linux_like::syscall::syscall; use crate::*; -pub fn is_dyn_sym(_name: &str) -> bool { - false +pub fn is_dyn_sym(name: &str) -> bool { + matches!(name, "gettid") } impl<'tcx> EvalContextExt<'tcx> for crate::MiriInterpCx<'tcx> {} @@ -54,6 +55,12 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { this.write_scalar(errno_place.to_ref(this).to_scalar(), dest)?; } + "gettid" => { + let [] = this.check_shim_sig_lenient(abi, CanonAbi::C, link_name, args)?; + let result = this.unix_gettid(link_name.as_str())?; + this.write_scalar(result, dest)?; + } + // Dynamically invoked syscalls "syscall" => syscall(this, link_name, abi, args, dest)?, diff --git a/src/tools/miri/test-cargo-miri/run-test.py b/src/tools/miri/test-cargo-miri/run-test.py index 40bfe7f845f..6b3b6343b82 100755 --- a/src/tools/miri/test-cargo-miri/run-test.py +++ b/src/tools/miri/test-cargo-miri/run-test.py @@ -37,7 +37,7 @@ def cargo_miri(cmd, quiet = True, targets = None): def normalize_stdout(str): str = str.replace("src\\", "src/") # normalize paths across platforms - str = re.sub("finished in \\d+\\.\\d\\ds", "finished in $TIME", str) # the time keeps changing, obviously + str = re.sub("\\b\\d+\\.\\d+s\\b", "$TIME", str) # the time keeps changing, obviously return str def check_output(actual, path, name): diff --git a/src/tools/miri/test-cargo-miri/test.default.stdout.ref b/src/tools/miri/test-cargo-miri/test.default.stdout.ref index 2d74d82f769..ef092ef703b 100644 --- a/src/tools/miri/test-cargo-miri/test.default.stdout.ref +++ b/src/tools/miri/test-cargo-miri/test.default.stdout.ref @@ -14,3 +14,4 @@ running 5 tests ..... test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME +all doctests ran in $TIME; merged doctests compilation took $TIME diff --git a/src/tools/miri/test-cargo-miri/test.filter.stdout.ref b/src/tools/miri/test-cargo-miri/test.filter.stdout.ref index b68bc983276..071aa5691c1 100644 --- a/src/tools/miri/test-cargo-miri/test.filter.stdout.ref +++ b/src/tools/miri/test-cargo-miri/test.filter.stdout.ref @@ -15,3 +15,4 @@ running 0 tests test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 5 filtered out; finished in $TIME +all doctests ran in $TIME; merged doctests compilation took $TIME diff --git a/src/tools/miri/test-cargo-miri/test.multiple_targets.stdout.ref b/src/tools/miri/test-cargo-miri/test.multiple_targets.stdout.ref index a376530a8cf..20139e9ffe6 100644 --- a/src/tools/miri/test-cargo-miri/test.multiple_targets.stdout.ref +++ b/src/tools/miri/test-cargo-miri/test.multiple_targets.stdout.ref @@ -25,8 +25,10 @@ running 5 tests ..... test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME +all doctests ran in $TIME; merged doctests compilation took $TIME running 5 tests ..... test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME +all doctests ran in $TIME; merged doctests compilation took $TIME diff --git a/src/tools/miri/tests/fail/async-shared-mutable.tree.stderr b/src/tools/miri/tests/fail/async-shared-mutable.tree.stderr index 17efb10ceb0..449a29088a0 100644 --- a/src/tools/miri/tests/fail/async-shared-mutable.tree.stderr +++ b/src/tools/miri/tests/fail/async-shared-mutable.tree.stderr @@ -5,6 +5,7 @@ LL | *x = 1; | ^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Frozen which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/async-shared-mutable.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/alias_through_mutation.tree.stderr b/src/tools/miri/tests/fail/both_borrows/alias_through_mutation.tree.stderr index 9e992f88f0c..95b7e99dedc 100644 --- a/src/tools/miri/tests/fail/both_borrows/alias_through_mutation.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/alias_through_mutation.tree.stderr @@ -5,6 +5,7 @@ LL | let _val = *target_alias; | ^^^^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this child read access help: the accessed tag <TAG> was created here, in the initial state Frozen --> tests/fail/both_borrows/alias_through_mutation.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/aliasing_mut1.tree.stderr b/src/tools/miri/tests/fail/both_borrows/aliasing_mut1.tree.stderr index e331ff2406d..207ed3131af 100644 --- a/src/tools/miri/tests/fail/both_borrows/aliasing_mut1.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/aliasing_mut1.tree.stderr @@ -5,6 +5,7 @@ LL | *x = 1; | ^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Reserved (conflicted) which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/both_borrows/aliasing_mut1.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/aliasing_mut2.tree.stderr b/src/tools/miri/tests/fail/both_borrows/aliasing_mut2.tree.stderr index a2191da0b4f..90b1b1294c7 100644 --- a/src/tools/miri/tests/fail/both_borrows/aliasing_mut2.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/aliasing_mut2.tree.stderr @@ -5,6 +5,7 @@ LL | *y = 2; | ^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Reserved (conflicted) which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/both_borrows/aliasing_mut2.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/aliasing_mut3.tree.stderr b/src/tools/miri/tests/fail/both_borrows/aliasing_mut3.tree.stderr index e92cad1777b..73a50276463 100644 --- a/src/tools/miri/tests/fail/both_borrows/aliasing_mut3.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/aliasing_mut3.tree.stderr @@ -5,6 +5,7 @@ LL | *x = 1; | ^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Reserved (conflicted) which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/both_borrows/aliasing_mut3.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/aliasing_mut4.tree.stderr b/src/tools/miri/tests/fail/both_borrows/aliasing_mut4.tree.stderr index e195b0a7e87..a6a6da3fa2a 100644 --- a/src/tools/miri/tests/fail/both_borrows/aliasing_mut4.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/aliasing_mut4.tree.stderr @@ -5,6 +5,7 @@ LL | crate::intrinsics::write_via_move(dest, src); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> is foreign to the protected tag <TAG> (i.e., it is not a child) = help: this foreign write access would cause the protected tag <TAG> (currently Frozen) to become Disabled = help: protected tags must never be Disabled diff --git a/src/tools/miri/tests/fail/both_borrows/box_exclusive_violation1.tree.stderr b/src/tools/miri/tests/fail/both_borrows/box_exclusive_violation1.tree.stderr index 30832ae60ac..d4cfab024ba 100644 --- a/src/tools/miri/tests/fail/both_borrows/box_exclusive_violation1.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/box_exclusive_violation1.tree.stderr @@ -5,6 +5,7 @@ LL | *LEAK = 7; | ^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Frozen --> tests/fail/both_borrows/box_exclusive_violation1.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/box_noalias_violation.tree.stderr b/src/tools/miri/tests/fail/both_borrows/box_noalias_violation.tree.stderr index d7b865d57a8..3c8ec7f7d3e 100644 --- a/src/tools/miri/tests/fail/both_borrows/box_noalias_violation.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/box_noalias_violation.tree.stderr @@ -5,6 +5,7 @@ LL | *y | ^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> is foreign to the protected tag <TAG> (i.e., it is not a child) = help: this foreign read access would cause the protected tag <TAG> (currently Active) to become Disabled = help: protected tags must never be Disabled diff --git a/src/tools/miri/tests/fail/both_borrows/buggy_as_mut_slice.tree.stderr b/src/tools/miri/tests/fail/both_borrows/buggy_as_mut_slice.tree.stderr index ad5df3399c8..6588bc25df1 100644 --- a/src/tools/miri/tests/fail/both_borrows/buggy_as_mut_slice.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/buggy_as_mut_slice.tree.stderr @@ -5,6 +5,7 @@ LL | v2[1] = 7; | ^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/both_borrows/buggy_as_mut_slice.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/buggy_split_at_mut.tree.stderr b/src/tools/miri/tests/fail/both_borrows/buggy_split_at_mut.tree.stderr index 4ab49e75adb..6ef27515fcd 100644 --- a/src/tools/miri/tests/fail/both_borrows/buggy_split_at_mut.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/buggy_split_at_mut.tree.stderr @@ -5,6 +5,7 @@ LL | b[1] = 6; | ^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/both_borrows/buggy_split_at_mut.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/illegal_write1.tree.stderr b/src/tools/miri/tests/fail/both_borrows/illegal_write1.tree.stderr index b718e19ff5a..4ffc7a75e66 100644 --- a/src/tools/miri/tests/fail/both_borrows/illegal_write1.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/illegal_write1.tree.stderr @@ -5,6 +5,7 @@ LL | unsafe { *x = 42 }; | ^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Frozen which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Frozen --> tests/fail/both_borrows/illegal_write1.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/illegal_write5.tree.stderr b/src/tools/miri/tests/fail/both_borrows/illegal_write5.tree.stderr index d4c78c4bd33..fc5b12da70e 100644 --- a/src/tools/miri/tests/fail/both_borrows/illegal_write5.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/illegal_write5.tree.stderr @@ -5,6 +5,7 @@ LL | let _val = *xref; | ^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this child read access help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/both_borrows/illegal_write5.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/illegal_write6.tree.stderr b/src/tools/miri/tests/fail/both_borrows/illegal_write6.tree.stderr index e537bc18c05..6780e52c3ba 100644 --- a/src/tools/miri/tests/fail/both_borrows/illegal_write6.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/illegal_write6.tree.stderr @@ -5,6 +5,7 @@ LL | unsafe { *y = 2 }; | ^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> is foreign to the protected tag <TAG> (i.e., it is not a child) = help: this foreign write access would cause the protected tag <TAG> (currently Active) to become Disabled = help: protected tags must never be Disabled diff --git a/src/tools/miri/tests/fail/both_borrows/invalidate_against_protector2.tree.stderr b/src/tools/miri/tests/fail/both_borrows/invalidate_against_protector2.tree.stderr index af90e75d384..90a89e48e61 100644 --- a/src/tools/miri/tests/fail/both_borrows/invalidate_against_protector2.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/invalidate_against_protector2.tree.stderr @@ -5,6 +5,7 @@ LL | unsafe { *x = 0 }; | ^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> is foreign to the protected tag <TAG> (i.e., it is not a child) = help: this foreign write access would cause the protected tag <TAG> (currently Frozen) to become Disabled = help: protected tags must never be Disabled diff --git a/src/tools/miri/tests/fail/both_borrows/invalidate_against_protector3.tree.stderr b/src/tools/miri/tests/fail/both_borrows/invalidate_against_protector3.tree.stderr index 5d5f5e59ead..8bac71dcd46 100644 --- a/src/tools/miri/tests/fail/both_borrows/invalidate_against_protector3.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/invalidate_against_protector3.tree.stderr @@ -5,6 +5,7 @@ LL | unsafe { *x = 0 }; | ^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> (root of the allocation) is foreign to the protected tag <TAG> (i.e., it is not a child) = help: this foreign write access would cause the protected tag <TAG> (currently Frozen) to become Disabled = help: protected tags must never be Disabled diff --git a/src/tools/miri/tests/fail/both_borrows/load_invalid_shr.tree.stderr b/src/tools/miri/tests/fail/both_borrows/load_invalid_shr.tree.stderr index 86c12603c07..e4bde2f7aea 100644 --- a/src/tools/miri/tests/fail/both_borrows/load_invalid_shr.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/load_invalid_shr.tree.stderr @@ -5,6 +5,7 @@ LL | let _val = *xref_in_mem; | ^^^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this reborrow (acting as a child read access) help: the accessed tag <TAG> was created here, in the initial state Frozen --> tests/fail/both_borrows/load_invalid_shr.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/mut_exclusive_violation1.tree.stderr b/src/tools/miri/tests/fail/both_borrows/mut_exclusive_violation1.tree.stderr index 5f14f23e8d6..f5c1dea69f0 100644 --- a/src/tools/miri/tests/fail/both_borrows/mut_exclusive_violation1.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/mut_exclusive_violation1.tree.stderr @@ -5,6 +5,7 @@ LL | *LEAK = 7; | ^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Frozen --> tests/fail/both_borrows/mut_exclusive_violation1.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/mut_exclusive_violation2.tree.stderr b/src/tools/miri/tests/fail/both_borrows/mut_exclusive_violation2.tree.stderr index edc72b0abbf..c1b0821a9fe 100644 --- a/src/tools/miri/tests/fail/both_borrows/mut_exclusive_violation2.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/mut_exclusive_violation2.tree.stderr @@ -5,6 +5,7 @@ LL | *raw1 = 3; | ^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/both_borrows/mut_exclusive_violation2.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/newtype_pair_retagging.tree.stderr b/src/tools/miri/tests/fail/both_borrows/newtype_pair_retagging.tree.stderr index 1984a6a0746..aa07ef53b31 100644 --- a/src/tools/miri/tests/fail/both_borrows/newtype_pair_retagging.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/newtype_pair_retagging.tree.stderr @@ -5,6 +5,7 @@ LL | self.1.deallocate(From::from(ptr.cast()), layout); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> is foreign to the protected tag <TAG> (i.e., it is not a child) = help: this deallocation (acting as a foreign write access) would cause the protected tag <TAG> (currently Reserved (conflicted)) to become Disabled = help: protected tags must never be Disabled diff --git a/src/tools/miri/tests/fail/both_borrows/newtype_retagging.tree.stderr b/src/tools/miri/tests/fail/both_borrows/newtype_retagging.tree.stderr index 7bd0cd14d79..c8a72c59176 100644 --- a/src/tools/miri/tests/fail/both_borrows/newtype_retagging.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/newtype_retagging.tree.stderr @@ -5,6 +5,7 @@ LL | self.1.deallocate(From::from(ptr.cast()), layout); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> is foreign to the protected tag <TAG> (i.e., it is not a child) = help: this deallocation (acting as a foreign write access) would cause the protected tag <TAG> (currently Reserved (conflicted)) to become Disabled = help: protected tags must never be Disabled diff --git a/src/tools/miri/tests/fail/both_borrows/outdated_local.tree.stderr b/src/tools/miri/tests/fail/both_borrows/outdated_local.tree.stderr index 8cb44d2635f..5310f8b9d09 100644 --- a/src/tools/miri/tests/fail/both_borrows/outdated_local.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/outdated_local.tree.stderr @@ -5,6 +5,7 @@ LL | assert_eq!(unsafe { *y }, 1); | ^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this child read access help: the accessed tag <TAG> was created here, in the initial state Frozen --> tests/fail/both_borrows/outdated_local.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/pass_invalid_shr.tree.stderr b/src/tools/miri/tests/fail/both_borrows/pass_invalid_shr.tree.stderr index 1bd760426da..3c813d35031 100644 --- a/src/tools/miri/tests/fail/both_borrows/pass_invalid_shr.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/pass_invalid_shr.tree.stderr @@ -5,6 +5,7 @@ LL | foo(xref); | ^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this reborrow (acting as a child read access) help: the accessed tag <TAG> was created here, in the initial state Frozen --> tests/fail/both_borrows/pass_invalid_shr.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/pass_invalid_shr_option.tree.stderr b/src/tools/miri/tests/fail/both_borrows/pass_invalid_shr_option.tree.stderr index 2f999a8aae0..4747c65ba83 100644 --- a/src/tools/miri/tests/fail/both_borrows/pass_invalid_shr_option.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/pass_invalid_shr_option.tree.stderr @@ -5,6 +5,7 @@ LL | foo(some_xref); | ^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this reborrow (acting as a child read access) help: the accessed tag <TAG> was created here, in the initial state Frozen --> tests/fail/both_borrows/pass_invalid_shr_option.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/pass_invalid_shr_tuple.tree.stderr b/src/tools/miri/tests/fail/both_borrows/pass_invalid_shr_tuple.tree.stderr index b30bda598d2..da011cfd3f7 100644 --- a/src/tools/miri/tests/fail/both_borrows/pass_invalid_shr_tuple.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/pass_invalid_shr_tuple.tree.stderr @@ -5,6 +5,7 @@ LL | foo(pair_xref); | ^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this reborrow (acting as a child read access) help: the accessed tag <TAG> was created here, in the initial state Frozen --> tests/fail/both_borrows/pass_invalid_shr_tuple.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/return_invalid_shr.tree.stderr b/src/tools/miri/tests/fail/both_borrows/return_invalid_shr.tree.stderr index 2b2650a254d..ee0f313d980 100644 --- a/src/tools/miri/tests/fail/both_borrows/return_invalid_shr.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/return_invalid_shr.tree.stderr @@ -5,6 +5,7 @@ LL | ret | ^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this reborrow (acting as a child read access) help: the accessed tag <TAG> was created here, in the initial state Frozen --> tests/fail/both_borrows/return_invalid_shr.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/return_invalid_shr_option.tree.stderr b/src/tools/miri/tests/fail/both_borrows/return_invalid_shr_option.tree.stderr index b8e963f87d9..16110e5b062 100644 --- a/src/tools/miri/tests/fail/both_borrows/return_invalid_shr_option.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/return_invalid_shr_option.tree.stderr @@ -5,6 +5,7 @@ LL | ret | ^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this reborrow (acting as a child read access) help: the accessed tag <TAG> was created here, in the initial state Frozen --> tests/fail/both_borrows/return_invalid_shr_option.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/return_invalid_shr_tuple.tree.stderr b/src/tools/miri/tests/fail/both_borrows/return_invalid_shr_tuple.tree.stderr index 8e499369f08..f93698f570e 100644 --- a/src/tools/miri/tests/fail/both_borrows/return_invalid_shr_tuple.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/return_invalid_shr_tuple.tree.stderr @@ -5,6 +5,7 @@ LL | ret | ^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this reborrow (acting as a child read access) help: the accessed tag <TAG> was created here, in the initial state Frozen --> tests/fail/both_borrows/return_invalid_shr_tuple.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/shr_frozen_violation1.tree.stderr b/src/tools/miri/tests/fail/both_borrows/shr_frozen_violation1.tree.stderr index a28754f5412..d9b75f65f75 100644 --- a/src/tools/miri/tests/fail/both_borrows/shr_frozen_violation1.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/shr_frozen_violation1.tree.stderr @@ -5,6 +5,7 @@ LL | *(x as *const i32 as *mut i32) = 7; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Frozen which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Frozen --> tests/fail/both_borrows/shr_frozen_violation1.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/shr_frozen_violation2.tree.stderr b/src/tools/miri/tests/fail/both_borrows/shr_frozen_violation2.tree.stderr index 0eb2dc3df77..c680c04137b 100644 --- a/src/tools/miri/tests/fail/both_borrows/shr_frozen_violation2.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/shr_frozen_violation2.tree.stderr @@ -5,6 +5,7 @@ LL | let _val = *frozen; | ^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this child read access help: the accessed tag <TAG> was created here, in the initial state Frozen --> tests/fail/both_borrows/shr_frozen_violation2.rs:LL:CC diff --git a/src/tools/miri/tests/fail/both_borrows/zero-sized-protected.tree.stderr b/src/tools/miri/tests/fail/both_borrows/zero-sized-protected.tree.stderr index 2a9a9afb0f0..66a7d7794e9 100644 --- a/src/tools/miri/tests/fail/both_borrows/zero-sized-protected.tree.stderr +++ b/src/tools/miri/tests/fail/both_borrows/zero-sized-protected.tree.stderr @@ -5,6 +5,7 @@ LL | unsafe { dealloc(ptr, l) }; | ^^^^^^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the allocation of the accessed tag <TAG> (root of the allocation) also contains the strongly protected tag <TAG> = help: the strongly protected tag <TAG> disallows deallocations help: the accessed tag <TAG> was created here diff --git a/src/tools/miri/tests/fail/branchless-select-i128-pointer.rs b/src/tools/miri/tests/fail/branchless-select-i128-pointer.rs index 2b861e5447b..7147813c4b6 100644 --- a/src/tools/miri/tests/fail/branchless-select-i128-pointer.rs +++ b/src/tools/miri/tests/fail/branchless-select-i128-pointer.rs @@ -1,3 +1,5 @@ +#![allow(integer_to_ptr_transmutes)] + use std::mem::transmute; #[cfg(target_pointer_width = "32")] diff --git a/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias.rs b/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias.rs new file mode 100644 index 00000000000..744d64b9b1e --- /dev/null +++ b/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias.rs @@ -0,0 +1,36 @@ +//! Ensure we detect aliasing of two in-place arguments for the tricky case where they do not +//! live in memory. +//@revisions: stack tree +//@[tree]compile-flags: -Zmiri-tree-borrows +// Validation forces more things into memory, which we can't have here. +//@compile-flags: -Zmiri-disable-validation +#![feature(custom_mir, core_intrinsics)] +use std::intrinsics::mir::*; + +pub struct S(i32); + +#[custom_mir(dialect = "runtime", phase = "optimized")] +fn main() { + mir! { + let _unit: (); + { + let staging = S(42); // This forces `staging` into memory... + let non_copy = staging; // ... so we move it to a non-inmemory local here. + // This specifically uses a type with scalar representation to tempt Miri to use the + // efficient way of storing local variables (outside adressable memory). + Call(_unit = callee(Move(non_copy), Move(non_copy)), ReturnTo(after_call), UnwindContinue()) + //~[stack]^ ERROR: not granting access + //~[tree]| ERROR: /read access .* forbidden/ + } + after_call = { + Return() + } + } +} + +pub fn callee(x: S, mut y: S) { + // With the setup above, if `x` and `y` are both moved, + // then writing to `y` will change the value stored in `x`! + y.0 = 0; + assert_eq!(x.0, 42); +} diff --git a/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias.stack.stderr b/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias.stack.stderr new file mode 100644 index 00000000000..0c1100cae63 --- /dev/null +++ b/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias.stack.stderr @@ -0,0 +1,25 @@ +error: Undefined Behavior: not granting access to tag <TAG> because that would remove [Unique for <TAG>] which is strongly protected + --> tests/fail/function_calls/arg_inplace_locals_alias.rs:LL:CC + | +LL | Call(_unit = callee(Move(non_copy), Move(non_copy)), ReturnTo(after_call), UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Undefined Behavior occurred here + | + = help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information +help: <TAG> was created here, as the root tag for ALLOC + --> tests/fail/function_calls/arg_inplace_locals_alias.rs:LL:CC + | +LL | Call(_unit = callee(Move(non_copy), Move(non_copy)), ReturnTo(after_call), UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +help: <TAG> is this argument + --> tests/fail/function_calls/arg_inplace_locals_alias.rs:LL:CC + | +LL | y.0 = 0; + | ^^^^^^^ + = note: BACKTRACE (of the first span): + = note: inside `main` at tests/fail/function_calls/arg_inplace_locals_alias.rs:LL:CC + +note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace + +error: aborting due to 1 previous error + diff --git a/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias.tree.stderr b/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias.tree.stderr new file mode 100644 index 00000000000..2266a9c39f9 --- /dev/null +++ b/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias.tree.stderr @@ -0,0 +1,34 @@ +error: Undefined Behavior: read access through <TAG> (root of the allocation) at ALLOC[0x0] is forbidden + --> tests/fail/function_calls/arg_inplace_locals_alias.rs:LL:CC + | +LL | Call(_unit = callee(Move(non_copy), Move(non_copy)), ReturnTo(after_call), UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Undefined Behavior occurred here + | + = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information + = help: the accessed tag <TAG> (root of the allocation) is foreign to the protected tag <TAG> (i.e., it is not a child) + = help: this foreign read access would cause the protected tag <TAG> (currently Active) to become Disabled + = help: protected tags must never be Disabled +help: the accessed tag <TAG> was created here + --> tests/fail/function_calls/arg_inplace_locals_alias.rs:LL:CC + | +LL | Call(_unit = callee(Move(non_copy), Move(non_copy)), ReturnTo(after_call), UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +help: the protected tag <TAG> was created here, in the initial state Reserved + --> tests/fail/function_calls/arg_inplace_locals_alias.rs:LL:CC + | +LL | y.0 = 0; + | ^^^^^^^ +help: the protected tag <TAG> later transitioned to Active due to a child write access at offsets [0x0..0x4] + --> tests/fail/function_calls/arg_inplace_locals_alias.rs:LL:CC + | +LL | y.0 = 0; + | ^^^^^^^ + = help: this transition corresponds to the first write to a 2-phase borrowed mutable reference + = note: BACKTRACE (of the first span): + = note: inside `main` at tests/fail/function_calls/arg_inplace_locals_alias.rs:LL:CC + +note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace + +error: aborting due to 1 previous error + diff --git a/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias_ret.rs b/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias_ret.rs new file mode 100644 index 00000000000..dff724f8d96 --- /dev/null +++ b/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias_ret.rs @@ -0,0 +1,34 @@ +//! Ensure we detect aliasing of a in-place argument with the return place for the tricky case where +//! they do not live in memory. +//@revisions: stack tree +//@[tree]compile-flags: -Zmiri-tree-borrows +// Validation forces more things into memory, which we can't have here. +//@compile-flags: -Zmiri-disable-validation +#![feature(custom_mir, core_intrinsics)] +use std::intrinsics::mir::*; + +#[allow(unused)] +pub struct S(i32); + +#[custom_mir(dialect = "runtime", phase = "optimized")] +fn main() { + mir! { + let _unit: (); + { + let staging = S(42); // This forces `staging` into memory... + let _non_copy = staging; // ... so we move it to a non-inmemory local here. + // This specifically uses a type with scalar representation to tempt Miri to use the + // efficient way of storing local variables (outside adressable memory). + Call(_non_copy = callee(Move(_non_copy)), ReturnTo(after_call), UnwindContinue()) + //~[stack]^ ERROR: not granting access + //~[tree]| ERROR: /reborrow .* forbidden/ + } + after_call = { + Return() + } + } +} + +pub fn callee(x: S) -> S { + x +} diff --git a/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias_ret.stack.stderr b/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias_ret.stack.stderr new file mode 100644 index 00000000000..fcd5b8752e7 --- /dev/null +++ b/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias_ret.stack.stderr @@ -0,0 +1,25 @@ +error: Undefined Behavior: not granting access to tag <TAG> because that would remove [Unique for <TAG>] which is strongly protected + --> tests/fail/function_calls/arg_inplace_locals_alias_ret.rs:LL:CC + | +LL | Call(_non_copy = callee(Move(_non_copy)), ReturnTo(after_call), UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Undefined Behavior occurred here + | + = help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information +help: <TAG> was created here, as the root tag for ALLOC + --> tests/fail/function_calls/arg_inplace_locals_alias_ret.rs:LL:CC + | +LL | Call(_non_copy = callee(Move(_non_copy)), ReturnTo(after_call), UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +help: <TAG> is this argument + --> tests/fail/function_calls/arg_inplace_locals_alias_ret.rs:LL:CC + | +LL | x + | ^ + = note: BACKTRACE (of the first span): + = note: inside `main` at tests/fail/function_calls/arg_inplace_locals_alias_ret.rs:LL:CC + +note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace + +error: aborting due to 1 previous error + diff --git a/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias_ret.tree.stderr b/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias_ret.tree.stderr new file mode 100644 index 00000000000..b7f514de0af --- /dev/null +++ b/src/tools/miri/tests/fail/function_calls/arg_inplace_locals_alias_ret.tree.stderr @@ -0,0 +1,34 @@ +error: Undefined Behavior: reborrow through <TAG> (root of the allocation) at ALLOC[0x0] is forbidden + --> tests/fail/function_calls/arg_inplace_locals_alias_ret.rs:LL:CC + | +LL | Call(_non_copy = callee(Move(_non_copy)), ReturnTo(after_call), UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Undefined Behavior occurred here + | + = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information + = help: the accessed tag <TAG> (root of the allocation) is foreign to the protected tag <TAG> (i.e., it is not a child) + = help: this reborrow (acting as a foreign read access) would cause the protected tag <TAG> (currently Active) to become Disabled + = help: protected tags must never be Disabled +help: the accessed tag <TAG> was created here + --> tests/fail/function_calls/arg_inplace_locals_alias_ret.rs:LL:CC + | +LL | Call(_non_copy = callee(Move(_non_copy)), ReturnTo(after_call), UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +help: the protected tag <TAG> was created here, in the initial state Reserved + --> tests/fail/function_calls/arg_inplace_locals_alias_ret.rs:LL:CC + | +LL | x + | ^ +help: the protected tag <TAG> later transitioned to Active due to a child write access at offsets [0x0..0x4] + --> tests/fail/function_calls/arg_inplace_locals_alias_ret.rs:LL:CC + | +LL | x + | ^ + = help: this transition corresponds to the first write to a 2-phase borrowed mutable reference + = note: BACKTRACE (of the first span): + = note: inside `main` at tests/fail/function_calls/arg_inplace_locals_alias_ret.rs:LL:CC + +note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace + +error: aborting due to 1 previous error + diff --git a/src/tools/miri/tests/fail/function_calls/arg_inplace_mutate.tree.stderr b/src/tools/miri/tests/fail/function_calls/arg_inplace_mutate.tree.stderr index 2f1dc1988f5..1995528e9f9 100644 --- a/src/tools/miri/tests/fail/function_calls/arg_inplace_mutate.tree.stderr +++ b/src/tools/miri/tests/fail/function_calls/arg_inplace_mutate.tree.stderr @@ -5,6 +5,7 @@ LL | unsafe { ptr.write(S(0)) }; | ^^^^^^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> (root of the allocation) is foreign to the protected tag <TAG> (i.e., it is not a child) = help: this foreign write access would cause the protected tag <TAG> (currently Active) to become Disabled = help: protected tags must never be Disabled diff --git a/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.tree.stderr b/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.tree.stderr index 5db5a6cac4d..e506a61c6bb 100644 --- a/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.tree.stderr +++ b/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.tree.stderr @@ -5,6 +5,7 @@ LL | unsafe { ptr.read() }; | ^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> (root of the allocation) is foreign to the protected tag <TAG> (i.e., it is not a child) = help: this foreign read access would cause the protected tag <TAG> (currently Active) to become Disabled = help: protected tags must never be Disabled diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.none.stderr b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.none.stderr index 24091547258..d478568ceae 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.none.stderr +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.none.stderr @@ -11,8 +11,8 @@ LL | unsafe { ptr.read() }; note: inside `main` --> tests/fail/function_calls/return_pointer_aliasing_read.rs:LL:CC | -LL | Call(*ptr = myfun(ptr), ReturnTo(after_call), UnwindContinue()) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(_x = myfun(ptr), ReturnTo(after_call), UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Uninitialized memory occurred at ALLOC[0x0..0x4], in this allocation: ALLOC (stack variable, size: 4, align: 4) { diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.rs b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.rs index a6e0134bd17..dc22e129e18 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.rs +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.rs @@ -10,11 +10,11 @@ use std::intrinsics::mir::*; pub fn main() { mir! { { - let x = 0; - let ptr = &raw mut x; + let _x = 0; + let ptr = &raw mut _x; // We arrange for `myfun` to have a pointer that aliases // its return place. Even just reading from that pointer is UB. - Call(*ptr = myfun(ptr), ReturnTo(after_call), UnwindContinue()) + Call(_x = myfun(ptr), ReturnTo(after_call), UnwindContinue()) } after_call = { @@ -25,7 +25,7 @@ pub fn main() { fn myfun(ptr: *mut i32) -> i32 { unsafe { ptr.read() }; - //~[stack]^ ERROR: not granting access + //~[stack]^ ERROR: does not exist in the borrow stack //~[tree]| ERROR: /read access .* forbidden/ //~[none]| ERROR: uninitialized // Without an aliasing model, reads are "fine" but at least they return uninit data. diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.stack.stderr b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.stack.stderr index 77cc0332a1c..86adbab353b 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.stack.stderr +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.stack.stderr @@ -1,8 +1,8 @@ -error: Undefined Behavior: not granting access to tag <TAG> because that would remove [Unique for <TAG>] which is strongly protected +error: Undefined Behavior: attempting a read access using <TAG> at ALLOC[0x0], but that tag does not exist in the borrow stack for this location --> tests/fail/function_calls/return_pointer_aliasing_read.rs:LL:CC | LL | unsafe { ptr.read() }; - | ^^^^^^^^^^ Undefined Behavior occurred here + | ^^^^^^^^^^ this error occurs as part of an access at ALLOC[0x0..0x4] | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information @@ -11,12 +11,12 @@ help: <TAG> was created by a SharedReadWrite retag at offsets [0x0..0x4] | LL | / mir! { LL | | { -LL | | let x = 0; -LL | | let ptr = &raw mut x; +LL | | let _x = 0; +LL | | let ptr = &raw mut _x; ... | LL | | } | |_____^ -help: <TAG> is this argument +help: <TAG> was later invalidated at offsets [0x0..0x4] by a Unique in-place function argument/return passing protection --> tests/fail/function_calls/return_pointer_aliasing_read.rs:LL:CC | LL | unsafe { ptr.read() }; @@ -26,8 +26,8 @@ LL | unsafe { ptr.read() }; note: inside `main` --> tests/fail/function_calls/return_pointer_aliasing_read.rs:LL:CC | -LL | Call(*ptr = myfun(ptr), ReturnTo(after_call), UnwindContinue()) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(_x = myfun(ptr), ReturnTo(after_call), UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `::core::intrinsics::mir::__internal_remove_let` which comes from the expansion of the macro `mir` (in Nightly builds, run with -Z macro-backtrace for more info) note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.tree.stderr b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.tree.stderr index bae3819c979..b1aa2ba2886 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.tree.stderr +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_read.tree.stderr @@ -5,6 +5,7 @@ LL | unsafe { ptr.read() }; | ^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> (root of the allocation) is foreign to the protected tag <TAG> (i.e., it is not a child) = help: this foreign read access would cause the protected tag <TAG> (currently Active) to become Disabled = help: protected tags must never be Disabled @@ -13,8 +14,8 @@ help: the accessed tag <TAG> was created here | LL | / mir! { LL | | { -LL | | let x = 0; -LL | | let ptr = &raw mut x; +LL | | let _x = 0; +LL | | let ptr = &raw mut _x; ... | LL | | } | |_____^ @@ -34,8 +35,8 @@ LL | unsafe { ptr.read() }; note: inside `main` --> tests/fail/function_calls/return_pointer_aliasing_read.rs:LL:CC | -LL | Call(*ptr = myfun(ptr), ReturnTo(after_call), UnwindContinue()) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(_x = myfun(ptr), ReturnTo(after_call), UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `::core::intrinsics::mir::__internal_remove_let` which comes from the expansion of the macro `mir` (in Nightly builds, run with -Z macro-backtrace for more info) note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write.rs b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write.rs index 6155e925c4b..2fddaf37235 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write.rs +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write.rs @@ -14,7 +14,7 @@ pub fn main() { let ptr = &raw mut _x; // We arrange for `myfun` to have a pointer that aliases // its return place. Writing to that pointer is UB. - Call(*ptr = myfun(ptr), ReturnTo(after_call), UnwindContinue()) + Call(_x = myfun(ptr), ReturnTo(after_call), UnwindContinue()) } after_call = { @@ -26,7 +26,7 @@ pub fn main() { fn myfun(ptr: *mut i32) -> i32 { // This overwrites the return place, which shouldn't be possible through another pointer. unsafe { ptr.write(0) }; - //~[stack]^ ERROR: strongly protected + //~[stack]^ ERROR: does not exist in the borrow stack //~[tree]| ERROR: /write access .* forbidden/ 13 } diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write.stack.stderr b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write.stack.stderr index 828b2339f8c..faae6172d75 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write.stack.stderr +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write.stack.stderr @@ -1,8 +1,8 @@ -error: Undefined Behavior: not granting access to tag <TAG> because that would remove [Unique for <TAG>] which is strongly protected +error: Undefined Behavior: attempting a write access using <TAG> at ALLOC[0x0], but that tag does not exist in the borrow stack for this location --> tests/fail/function_calls/return_pointer_aliasing_write.rs:LL:CC | LL | unsafe { ptr.write(0) }; - | ^^^^^^^^^^^^ Undefined Behavior occurred here + | ^^^^^^^^^^^^ this error occurs as part of an access at ALLOC[0x0..0x4] | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information @@ -16,7 +16,7 @@ LL | | let ptr = &raw mut _x; ... | LL | | } | |_____^ -help: <TAG> is this argument +help: <TAG> was later invalidated at offsets [0x0..0x4] by a Unique in-place function argument/return passing protection --> tests/fail/function_calls/return_pointer_aliasing_write.rs:LL:CC | LL | unsafe { ptr.write(0) }; @@ -26,8 +26,8 @@ LL | unsafe { ptr.write(0) }; note: inside `main` --> tests/fail/function_calls/return_pointer_aliasing_write.rs:LL:CC | -LL | Call(*ptr = myfun(ptr), ReturnTo(after_call), UnwindContinue()) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(_x = myfun(ptr), ReturnTo(after_call), UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `::core::intrinsics::mir::__internal_remove_let` which comes from the expansion of the macro `mir` (in Nightly builds, run with -Z macro-backtrace for more info) note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write.tree.stderr b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write.tree.stderr index e0df9370fee..0cf449ea3ec 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write.tree.stderr +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write.tree.stderr @@ -5,6 +5,7 @@ LL | unsafe { ptr.write(0) }; | ^^^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> (root of the allocation) is foreign to the protected tag <TAG> (i.e., it is not a child) = help: this foreign write access would cause the protected tag <TAG> (currently Active) to become Disabled = help: protected tags must never be Disabled @@ -34,8 +35,8 @@ LL | unsafe { ptr.write(0) }; note: inside `main` --> tests/fail/function_calls/return_pointer_aliasing_write.rs:LL:CC | -LL | Call(*ptr = myfun(ptr), ReturnTo(after_call), UnwindContinue()) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(_x = myfun(ptr), ReturnTo(after_call), UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `::core::intrinsics::mir::__internal_remove_let` which comes from the expansion of the macro `mir` (in Nightly builds, run with -Z macro-backtrace for more info) note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write_tail_call.rs b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write_tail_call.rs index 37ee7ae1b0d..5f3ecb65022 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write_tail_call.rs +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write_tail_call.rs @@ -16,7 +16,7 @@ pub fn main() { let ptr = &raw mut _x; // We arrange for `myfun` to have a pointer that aliases // its return place. Writing to that pointer is UB. - Call(*ptr = myfun(ptr), ReturnTo(after_call), UnwindContinue()) + Call(_x = myfun(ptr), ReturnTo(after_call), UnwindContinue()) } after_call = { @@ -32,7 +32,7 @@ fn myfun(ptr: *mut i32) -> i32 { fn myfun2(ptr: *mut i32) -> i32 { // This overwrites the return place, which shouldn't be possible through another pointer. unsafe { ptr.write(0) }; - //~[stack]^ ERROR: strongly protected + //~[stack]^ ERROR: does not exist in the borrow stack //~[tree]| ERROR: /write access .* forbidden/ 13 } diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write_tail_call.stack.stderr b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write_tail_call.stack.stderr index f5183cfaf5b..1a18857bb17 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write_tail_call.stack.stderr +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write_tail_call.stack.stderr @@ -1,8 +1,8 @@ -error: Undefined Behavior: not granting access to tag <TAG> because that would remove [Unique for <TAG>] which is strongly protected +error: Undefined Behavior: attempting a write access using <TAG> at ALLOC[0x0], but that tag does not exist in the borrow stack for this location --> tests/fail/function_calls/return_pointer_aliasing_write_tail_call.rs:LL:CC | LL | unsafe { ptr.write(0) }; - | ^^^^^^^^^^^^ Undefined Behavior occurred here + | ^^^^^^^^^^^^ this error occurs as part of an access at ALLOC[0x0..0x4] | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information @@ -16,18 +16,18 @@ LL | | let ptr = &raw mut _x; ... | LL | | } | |_____^ -help: <TAG> is this argument +help: <TAG> was later invalidated at offsets [0x0..0x4] by a Unique in-place function argument/return passing protection --> tests/fail/function_calls/return_pointer_aliasing_write_tail_call.rs:LL:CC | -LL | unsafe { ptr.write(0) }; - | ^^^^^^^^^^^^^^^^^^^^^^^ +LL | become myfun2(ptr) + | ^^^^^^^^^^^^^^^^^^ = note: BACKTRACE (of the first span): = note: inside `myfun2` at tests/fail/function_calls/return_pointer_aliasing_write_tail_call.rs:LL:CC note: inside `main` --> tests/fail/function_calls/return_pointer_aliasing_write_tail_call.rs:LL:CC | -LL | Call(*ptr = myfun(ptr), ReturnTo(after_call), UnwindContinue()) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(_x = myfun(ptr), ReturnTo(after_call), UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `::core::intrinsics::mir::__internal_remove_let` which comes from the expansion of the macro `mir` (in Nightly builds, run with -Z macro-backtrace for more info) note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write_tail_call.tree.stderr b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write_tail_call.tree.stderr index fa03ed6869b..a006c6feae4 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write_tail_call.tree.stderr +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing_write_tail_call.tree.stderr @@ -5,6 +5,7 @@ LL | unsafe { ptr.write(0) }; | ^^^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> (root of the allocation) is foreign to the protected tag <TAG> (i.e., it is not a child) = help: this foreign write access would cause the protected tag <TAG> (currently Active) to become Disabled = help: protected tags must never be Disabled @@ -34,8 +35,8 @@ LL | unsafe { ptr.write(0) }; note: inside `main` --> tests/fail/function_calls/return_pointer_aliasing_write_tail_call.rs:LL:CC | -LL | Call(*ptr = myfun(ptr), ReturnTo(after_call), UnwindContinue()) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(_x = myfun(ptr), ReturnTo(after_call), UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `::core::intrinsics::mir::__internal_remove_let` which comes from the expansion of the macro `mir` (in Nightly builds, run with -Z macro-backtrace for more info) note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/provenance/provenance_transmute.rs b/src/tools/miri/tests/fail/provenance/provenance_transmute.rs index d72f10530d7..60cb9a7f6bf 100644 --- a/src/tools/miri/tests/fail/provenance/provenance_transmute.rs +++ b/src/tools/miri/tests/fail/provenance/provenance_transmute.rs @@ -1,5 +1,7 @@ //@compile-flags: -Zmiri-permissive-provenance +#![allow(integer_to_ptr_transmutes)] + use std::mem; // This is the example from diff --git a/src/tools/miri/tests/fail/tree_borrows/alternate-read-write.stderr b/src/tools/miri/tests/fail/tree_borrows/alternate-read-write.stderr index 63c6287f20d..9e955a6d5b1 100644 --- a/src/tools/miri/tests/fail/tree_borrows/alternate-read-write.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/alternate-read-write.stderr @@ -5,6 +5,7 @@ LL | *y += 1; // Failure | ^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Frozen which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/tree_borrows/alternate-read-write.rs:LL:CC diff --git a/src/tools/miri/tests/fail/tree_borrows/cell-inside-struct.stderr b/src/tools/miri/tests/fail/tree_borrows/cell-inside-struct.stderr index 81d5aba6b2e..5e43d174ed9 100644 --- a/src/tools/miri/tests/fail/tree_borrows/cell-inside-struct.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/cell-inside-struct.stderr @@ -11,6 +11,7 @@ LL | (*a).field1 = 88; | ^^^^^^^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> (a) has state Frozen which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Cell --> tests/fail/tree_borrows/cell-inside-struct.rs:LL:CC diff --git a/src/tools/miri/tests/fail/tree_borrows/error-range.stderr b/src/tools/miri/tests/fail/tree_borrows/error-range.stderr index 9a52f68d9b6..3dc120a20d2 100644 --- a/src/tools/miri/tests/fail/tree_borrows/error-range.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/error-range.stderr @@ -5,6 +5,7 @@ LL | rmut[5] += 1; | ^^^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this child read access help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/tree_borrows/error-range.rs:LL:CC diff --git a/src/tools/miri/tests/fail/tree_borrows/fnentry_invalidation.stderr b/src/tools/miri/tests/fail/tree_borrows/fnentry_invalidation.stderr index ed345aae38f..7886029dccf 100644 --- a/src/tools/miri/tests/fail/tree_borrows/fnentry_invalidation.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/fnentry_invalidation.stderr @@ -5,6 +5,7 @@ LL | *z = 2; | ^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Frozen which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/tree_borrows/fnentry_invalidation.rs:LL:CC diff --git a/src/tools/miri/tests/fail/tree_borrows/outside-range.stderr b/src/tools/miri/tests/fail/tree_borrows/outside-range.stderr index bbd33dc3560..7960f42faa5 100644 --- a/src/tools/miri/tests/fail/tree_borrows/outside-range.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/outside-range.stderr @@ -5,6 +5,7 @@ LL | *y.add(3) = 42; | ^^^^^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> is foreign to the protected tag <TAG> (i.e., it is not a child) = help: this foreign write access would cause the protected tag <TAG> (currently Reserved) to become Disabled = help: protected tags must never be Disabled diff --git a/src/tools/miri/tests/fail/tree_borrows/parent_read_freezes_raw_mut.stderr b/src/tools/miri/tests/fail/tree_borrows/parent_read_freezes_raw_mut.stderr index a4119bc0178..2edbbd80569 100644 --- a/src/tools/miri/tests/fail/tree_borrows/parent_read_freezes_raw_mut.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/parent_read_freezes_raw_mut.stderr @@ -5,6 +5,7 @@ LL | *ptr = 0; | ^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Frozen which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/tree_borrows/parent_read_freezes_raw_mut.rs:LL:CC diff --git a/src/tools/miri/tests/fail/tree_borrows/pass_invalid_mut.stderr b/src/tools/miri/tests/fail/tree_borrows/pass_invalid_mut.stderr index de01a9f0e80..c00c67173b7 100644 --- a/src/tools/miri/tests/fail/tree_borrows/pass_invalid_mut.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/pass_invalid_mut.stderr @@ -5,6 +5,7 @@ LL | *nope = 31; | ^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> is a child of the conflicting tag <TAG> = help: the conflicting tag <TAG> has state Frozen which forbids this child write access help: the accessed tag <TAG> was created here diff --git a/src/tools/miri/tests/fail/tree_borrows/protector-write-lazy.stderr b/src/tools/miri/tests/fail/tree_borrows/protector-write-lazy.stderr index af226b9e3be..7cebd7f32a0 100644 --- a/src/tools/miri/tests/fail/tree_borrows/protector-write-lazy.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/protector-write-lazy.stderr @@ -5,6 +5,7 @@ LL | unsafe { println!("Value of funky: {}", *funky_ptr_lazy_on_fst_elem) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this reborrow (acting as a child read access) help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/tree_borrows/protector-write-lazy.rs:LL:CC diff --git a/src/tools/miri/tests/fail/tree_borrows/repeated_foreign_read_lazy_conflicted.stderr b/src/tools/miri/tests/fail/tree_borrows/repeated_foreign_read_lazy_conflicted.stderr index 8421df5ab79..012d7caef50 100644 --- a/src/tools/miri/tests/fail/tree_borrows/repeated_foreign_read_lazy_conflicted.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/repeated_foreign_read_lazy_conflicted.stderr @@ -5,6 +5,7 @@ LL | *(x as *mut u8).byte_sub(1) = 42; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Reserved (conflicted) which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/tree_borrows/repeated_foreign_read_lazy_conflicted.rs:LL:CC diff --git a/src/tools/miri/tests/fail/tree_borrows/reserved/cell-protected-write.stderr b/src/tools/miri/tests/fail/tree_borrows/reserved/cell-protected-write.stderr index 00d5c3e6b67..b1c3ffe86ef 100644 --- a/src/tools/miri/tests/fail/tree_borrows/reserved/cell-protected-write.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/reserved/cell-protected-write.stderr @@ -15,6 +15,7 @@ LL | *y = 1; | ^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> (y, callee:y, caller:y) is foreign to the protected tag <TAG> (callee:x) (i.e., it is not a child) = help: this foreign write access would cause the protected tag <TAG> (callee:x) (currently Reserved) to become Disabled = help: protected tags must never be Disabled diff --git a/src/tools/miri/tests/fail/tree_borrows/reserved/int-protected-write.stderr b/src/tools/miri/tests/fail/tree_borrows/reserved/int-protected-write.stderr index c003938db33..5f3129b9dc0 100644 --- a/src/tools/miri/tests/fail/tree_borrows/reserved/int-protected-write.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/reserved/int-protected-write.stderr @@ -15,6 +15,7 @@ LL | *y = 0; | ^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> (y, callee:y, caller:y) is foreign to the protected tag <TAG> (callee:x) (i.e., it is not a child) = help: this foreign write access would cause the protected tag <TAG> (callee:x) (currently Reserved) to become Disabled = help: protected tags must never be Disabled diff --git a/src/tools/miri/tests/fail/tree_borrows/reservedim_spurious_write.with.stderr b/src/tools/miri/tests/fail/tree_borrows/reservedim_spurious_write.with.stderr index a8db7070333..7565fa6203f 100644 --- a/src/tools/miri/tests/fail/tree_borrows/reservedim_spurious_write.with.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/reservedim_spurious_write.with.stderr @@ -19,6 +19,7 @@ LL | unsafe { *y = 13 } | ^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/tree_borrows/reservedim_spurious_write.rs:LL:CC diff --git a/src/tools/miri/tests/fail/tree_borrows/reservedim_spurious_write.without.stderr b/src/tools/miri/tests/fail/tree_borrows/reservedim_spurious_write.without.stderr index 5eeefd450c6..7f791c88dde 100644 --- a/src/tools/miri/tests/fail/tree_borrows/reservedim_spurious_write.without.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/reservedim_spurious_write.without.stderr @@ -19,6 +19,7 @@ LL | unsafe { *y = 13 } | ^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/tree_borrows/reservedim_spurious_write.rs:LL:CC diff --git a/src/tools/miri/tests/fail/tree_borrows/return_invalid_mut.stderr b/src/tools/miri/tests/fail/tree_borrows/return_invalid_mut.stderr index a0ebf0ecbd2..ba8ab472872 100644 --- a/src/tools/miri/tests/fail/tree_borrows/return_invalid_mut.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/return_invalid_mut.stderr @@ -5,6 +5,7 @@ LL | *ret = 3; | ^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> is a child of the conflicting tag <TAG> = help: the conflicting tag <TAG> has state Frozen which forbids this child write access help: the accessed tag <TAG> was created here diff --git a/src/tools/miri/tests/fail/tree_borrows/spurious_read.stderr b/src/tools/miri/tests/fail/tree_borrows/spurious_read.stderr index a3b0d5f13ad..8f2534d6b6e 100644 --- a/src/tools/miri/tests/fail/tree_borrows/spurious_read.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/spurious_read.stderr @@ -18,6 +18,7 @@ LL | *y = 2; | ^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Reserved (conflicted) which forbids this child write access help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/tree_borrows/spurious_read.rs:LL:CC diff --git a/src/tools/miri/tests/fail/tree_borrows/strongly-protected.stderr b/src/tools/miri/tests/fail/tree_borrows/strongly-protected.stderr index 56617f6d6a6..685abee3292 100644 --- a/src/tools/miri/tests/fail/tree_borrows/strongly-protected.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/strongly-protected.stderr @@ -5,6 +5,7 @@ LL | self.1.deallocate(From::from(ptr.cast()), layout); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the allocation of the accessed tag <TAG> also contains the strongly protected tag <TAG> = help: the strongly protected tag <TAG> disallows deallocations help: the accessed tag <TAG> was created here diff --git a/src/tools/miri/tests/fail/tree_borrows/subtree_traversal_skipping_diagnostics.stderr b/src/tools/miri/tests/fail/tree_borrows/subtree_traversal_skipping_diagnostics.stderr index 8669a14ecc7..b98d2fafcf4 100644 --- a/src/tools/miri/tests/fail/tree_borrows/subtree_traversal_skipping_diagnostics.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/subtree_traversal_skipping_diagnostics.stderr @@ -5,6 +5,7 @@ LL | *m = 42; | ^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> is a child of the conflicting tag <TAG> = help: the conflicting tag <TAG> has state Frozen which forbids this child write access help: the accessed tag <TAG> was created here diff --git a/src/tools/miri/tests/fail/tree_borrows/write-during-2phase.stderr b/src/tools/miri/tests/fail/tree_borrows/write-during-2phase.stderr index 693d1853550..7f55e06a6bb 100644 --- a/src/tools/miri/tests/fail/tree_borrows/write-during-2phase.stderr +++ b/src/tools/miri/tests/fail/tree_borrows/write-during-2phase.stderr @@ -5,6 +5,7 @@ LL | fn add(&mut self, n: u64) -> u64 { | ^^^^^^^^^ Undefined Behavior occurred here | = help: this indicates a potential bug in the program: it performed an invalid operation, but the Tree Borrows rules it violated are still experimental + = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/tree-borrows.md for further information = help: the accessed tag <TAG> has state Disabled which forbids this reborrow (acting as a child read access) help: the accessed tag <TAG> was created here, in the initial state Reserved --> tests/fail/tree_borrows/write-during-2phase.rs:LL:CC diff --git a/src/tools/miri/tests/fail/validity/dangling_ref1.rs b/src/tools/miri/tests/fail/validity/dangling_ref1.rs index fc3a9f34463..57ba1117e76 100644 --- a/src/tools/miri/tests/fail/validity/dangling_ref1.rs +++ b/src/tools/miri/tests/fail/validity/dangling_ref1.rs @@ -1,5 +1,8 @@ // Make sure we catch this even without Stacked Borrows //@compile-flags: -Zmiri-disable-stacked-borrows + +#![allow(integer_to_ptr_transmutes)] + use std::mem; fn main() { diff --git a/src/tools/miri/tests/panic/oob_subslice.stderr b/src/tools/miri/tests/panic/oob_subslice.stderr index f8270f4ad4d..e1e5bd33d31 100644 --- a/src/tools/miri/tests/panic/oob_subslice.stderr +++ b/src/tools/miri/tests/panic/oob_subslice.stderr @@ -1,5 +1,5 @@ thread 'main' ($TID) panicked at tests/panic/oob_subslice.rs:LL:CC: -range end index 5 out of range for slice of length 4 +range end index 4 out of range for slice of length 4 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace note: in Miri, you may have to set `MIRIFLAGS=-Zmiri-env-forward=RUST_BACKTRACE` for the environment variable to have an effect diff --git a/src/tools/miri/tests/panic/transmute_fat2.rs b/src/tools/miri/tests/panic/transmute_fat2.rs index e695ff2d57b..7441f25d03e 100644 --- a/src/tools/miri/tests/panic/transmute_fat2.rs +++ b/src/tools/miri/tests/panic/transmute_fat2.rs @@ -1,3 +1,5 @@ +#![allow(integer_to_ptr_transmutes)] + fn main() { #[cfg(all(target_endian = "little", target_pointer_width = "64"))] let bad = unsafe { std::mem::transmute::<u128, &[u8]>(42) }; diff --git a/src/tools/miri/tests/pass/binops.rs b/src/tools/miri/tests/pass/binops.rs index 0aff7acb29d..fcbe6c85b7b 100644 --- a/src/tools/miri/tests/pass/binops.rs +++ b/src/tools/miri/tests/pass/binops.rs @@ -32,6 +32,7 @@ fn test_bool() { assert_eq!(true ^ true, false); } +#[allow(integer_to_ptr_transmutes)] fn test_ptr() { unsafe { let p1: *const u8 = ::std::mem::transmute(0_usize); diff --git a/src/tools/miri/tests/pass/function_calls/exported_symbol_weak.rs b/src/tools/miri/tests/pass/function_calls/exported_symbol_weak.rs new file mode 100644 index 00000000000..abf4b6718ab --- /dev/null +++ b/src/tools/miri/tests/pass/function_calls/exported_symbol_weak.rs @@ -0,0 +1,39 @@ +#![feature(linkage)] + +// FIXME move this module to a separate crate once aux-build is allowed +// This currently depends on the fact that miri skips the codegen check +// that denies multiple symbols with the same name. +mod first { + #[no_mangle] + #[linkage = "weak"] + extern "C" fn foo() -> i32 { + 1 + } + + #[no_mangle] + #[linkage = "weak"] + extern "C" fn bar() -> i32 { + 2 + } +} + +mod second { + #[no_mangle] + extern "C" fn bar() -> i32 { + 3 + } +} + +extern "C" { + fn foo() -> i32; + fn bar() -> i32; +} + +fn main() { + unsafe { + // If there is no non-weak definition, the weak definition will be used. + assert_eq!(foo(), 1); + // Non-weak definition takes presedence. + assert_eq!(bar(), 3); + } +} diff --git a/src/tools/miri/tests/pass/prefetch.rs b/src/tools/miri/tests/pass/prefetch.rs new file mode 100644 index 00000000000..99c75c38bde --- /dev/null +++ b/src/tools/miri/tests/pass/prefetch.rs @@ -0,0 +1,23 @@ +#![feature(core_intrinsics)] + +// Test that these intrinsics work. Their behavior should be a no-op. + +fn main() { + static X: [u8; 8] = [0; 8]; + + ::std::intrinsics::prefetch_read_data::<_, 1>(::std::ptr::null::<u8>()); + ::std::intrinsics::prefetch_read_data::<_, 2>(::std::ptr::dangling::<u8>()); + ::std::intrinsics::prefetch_read_data::<_, 3>(X.as_ptr()); + + ::std::intrinsics::prefetch_write_data::<_, 1>(::std::ptr::null::<u8>()); + ::std::intrinsics::prefetch_write_data::<_, 2>(::std::ptr::dangling::<u8>()); + ::std::intrinsics::prefetch_write_data::<_, 3>(X.as_ptr()); + + ::std::intrinsics::prefetch_read_instruction::<_, 1>(::std::ptr::null::<u8>()); + ::std::intrinsics::prefetch_read_instruction::<_, 2>(::std::ptr::dangling::<u8>()); + ::std::intrinsics::prefetch_read_instruction::<_, 3>(X.as_ptr()); + + ::std::intrinsics::prefetch_write_instruction::<_, 1>(::std::ptr::null::<u8>()); + ::std::intrinsics::prefetch_write_instruction::<_, 2>(::std::ptr::dangling::<u8>()); + ::std::intrinsics::prefetch_write_instruction::<_, 3>(X.as_ptr()); +} diff --git a/src/tools/miri/tests/pass/too-large-primval-write-problem.rs b/src/tools/miri/tests/pass/too-large-primval-write-problem.rs index f4c418bd78a..00882b7ecca 100644 --- a/src/tools/miri/tests/pass/too-large-primval-write-problem.rs +++ b/src/tools/miri/tests/pass/too-large-primval-write-problem.rs @@ -7,6 +7,8 @@ // // This is just intended as a regression test to make sure we don't reintroduce this problem. +#![allow(integer_to_ptr_transmutes)] + #[cfg(target_pointer_width = "32")] fn main() { use std::mem::transmute; diff --git a/src/tools/miri/triagebot.toml b/src/tools/miri/triagebot.toml index a0ce9f80024..c747cbb0a52 100644 --- a/src/tools/miri/triagebot.toml +++ b/src/tools/miri/triagebot.toml @@ -50,11 +50,14 @@ new_pr = true [autolabel."S-waiting-on-author"] new_draft = true -# Automatically close and reopen PRs made by bots to run CI on them -[bot-pull-requests] - -# Canonicalize issue numbers to avoid closing the wrong issue when upstreaming this subtree +# Canonicalize issue numbers to avoid closing the wrong issue when upstreaming this subtree. [canonicalize-issue-links] -# Prevents mentions in commits to avoid users being spammed +# Prevents mentions in commits to avoid users being spammed. [no-mentions] + +# Show range-diff links on force pushes. +[range-diff] + +# Add link to the review body to review changes since posting it. +[review-changes-since] diff --git a/src/tools/opt-dist/src/exec.rs b/src/tools/opt-dist/src/exec.rs index a8d4c93d160..a3935f98359 100644 --- a/src/tools/opt-dist/src/exec.rs +++ b/src/tools/opt-dist/src/exec.rs @@ -189,6 +189,12 @@ impl Bootstrap { self } + /// Rebuild rustc in case of statically linked LLVM + pub fn rustc_rebuild(mut self) -> Self { + self.cmd = self.cmd.arg("--keep-stage").arg("0"); + self + } + pub fn run(self, timer: &mut TimerSection) -> anyhow::Result<()> { self.cmd.run()?; let metrics = load_metrics(&self.metrics_path)?; diff --git a/src/tools/opt-dist/src/main.rs b/src/tools/opt-dist/src/main.rs index 19706b4a4f0..339c25552ad 100644 --- a/src/tools/opt-dist/src/main.rs +++ b/src/tools/opt-dist/src/main.rs @@ -375,8 +375,14 @@ fn execute_pipeline( let mut dist = Bootstrap::dist(env, &dist_args) .llvm_pgo_optimize(llvm_pgo_profile.as_ref()) - .rustc_pgo_optimize(&rustc_pgo_profile) - .avoid_rustc_rebuild(); + .rustc_pgo_optimize(&rustc_pgo_profile); + + // if LLVM is not built we'll have PGO optimized rustc + dist = if env.supports_shared_llvm() || !env.build_llvm() { + dist.avoid_rustc_rebuild() + } else { + dist.rustc_rebuild() + }; for bolt_profile in bolt_profiles { dist = dist.with_bolt_profile(bolt_profile); diff --git a/src/tools/rustbook/Cargo.lock b/src/tools/rustbook/Cargo.lock index e42f266391e..cd7ee6fb4fe 100644 --- a/src/tools/rustbook/Cargo.lock +++ b/src/tools/rustbook/Cargo.lock @@ -97,9 +97,9 @@ dependencies = [ [[package]] name = "anyhow" -version = "1.0.98" +version = "1.0.99" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "e16d2d3311acee920a9eb8d33b8cbc1787ce4a264e85f964c2404b969bdcd487" +checksum = "b0674a1ddeecb70197781e945de4b3b8ffb61fa939a5597bcf48503737663100" [[package]] name = "autocfg" @@ -124,9 +124,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a" [[package]] name = "bitflags" -version = "2.9.1" +version = "2.9.2" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1b8e56985ec62d17e9c1001dc89c88ecd7dc08e47eba5ec7c29c7b5eeecde967" +checksum = "6a65b545ab31d687cff52899d4890855fec459eb6afe0da6417b8a18da87aa29" [[package]] name = "block-buffer" @@ -156,9 +156,9 @@ checksum = "46c5e41b57b8bba42a04676d81cb89e9ee8e859a1a66f80a5a72e1cb76b34d43" [[package]] name = "cc" -version = "1.2.32" +version = "1.2.33" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "2352e5597e9c544d5e6d9c95190d5d27738ade584fa8db0a16e130e5c2b5296e" +checksum = "3ee0f8803222ba5a7e2777dd72ca451868909b1ac410621b676adf07280e9b5f" dependencies = [ "shlex", ] @@ -185,9 +185,9 @@ dependencies = [ [[package]] name = "clap" -version = "4.5.43" +version = "4.5.45" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "50fd97c9dc2399518aa331917ac6f274280ec5eb34e555dd291899745c48ec6f" +checksum = "1fc0e74a703892159f5ae7d3aac52c8e6c392f5ae5f359c70b5881d60aaac318" dependencies = [ "clap_builder", "clap_derive", @@ -195,9 +195,9 @@ dependencies = [ [[package]] name = "clap_builder" -version = "4.5.43" +version = "4.5.44" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c35b5830294e1fa0462034af85cc95225a4cb07092c088c55bda3147cfcd8f65" +checksum = "b3e7f4214277f3c7aa526a59dd3fbe306a370daee1f8b7b8c987069cd8e888a8" dependencies = [ "anstream", "anstyle", @@ -208,18 +208,18 @@ dependencies = [ [[package]] name = "clap_complete" -version = "4.5.56" +version = "4.5.57" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "67e4efcbb5da11a92e8a609233aa1e8a7d91e38de0be865f016d14700d45a7fd" +checksum = "4d9501bd3f5f09f7bbee01da9a511073ed30a80cd7a509f1214bb74eadea71ad" dependencies = [ "clap", ] [[package]] name = "clap_derive" -version = "4.5.41" +version = "4.5.45" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ef4f52386a59ca4c860f7393bcf8abd8dfd91ecccc0f774635ff68e92eeef491" +checksum = "14cb31bb0a7d536caef2639baa7fad459e15c3144efefa6dbd1c84562c4739f6" dependencies = [ "heck", "proc-macro2", @@ -559,7 +559,7 @@ dependencies = [ "pest_derive", "serde", "serde_json", - "thiserror 2.0.12", + "thiserror 2.0.15", ] [[package]] @@ -1035,7 +1035,7 @@ version = "6.5.1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "336b9c63443aceef14bea841b899035ae3abe89b7c486aaf4c5bd8aafedac3f0" dependencies = [ - "bitflags 2.9.1", + "bitflags 2.9.2", "libc", "once_cell", "onig_sys", @@ -1104,7 +1104,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "1db05f56d34358a8b1066f67cbb203ee3e7ed2ba674a6263a1d5ec6db2204323" dependencies = [ "memchr", - "thiserror 2.0.12", + "thiserror 2.0.15", "ucd-trie", ] @@ -1240,9 +1240,9 @@ checksum = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c" [[package]] name = "proc-macro2" -version = "1.0.95" +version = "1.0.101" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "02b3e5e68a3a1a02aad3ec490a98007cbc13c37cbe84a3cd7b8e406d76e7f778" +checksum = "89ae43fd86e4158d6db51ad8e2b80f313af9cc74f5c0e03ccb87de09998732de" dependencies = [ "unicode-ident", ] @@ -1253,7 +1253,7 @@ version = "0.10.3" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "76979bea66e7875e7509c4ec5300112b316af87fa7a252ca91c448b32dfe3993" dependencies = [ - "bitflags 2.9.1", + "bitflags 2.9.2", "memchr", "pulldown-cmark-escape 0.10.1", "unicase", @@ -1265,7 +1265,7 @@ version = "0.12.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "f86ba2052aebccc42cbbb3ed234b8b13ce76f75c3551a303cb2bcffcff12bb14" dependencies = [ - "bitflags 2.9.1", + "bitflags 2.9.2", "getopts", "memchr", "pulldown-cmark-escape 0.11.0", @@ -1347,7 +1347,7 @@ version = "0.5.17" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "5407465600fb0548f1442edf71dd20683c6ed326200ace4b1ef0763521bb3b77" dependencies = [ - "bitflags 2.9.1", + "bitflags 2.9.2", ] [[package]] @@ -1385,6 +1385,7 @@ version = "0.1.0" dependencies = [ "clap", "env_logger", + "libc", "mdbook", "mdbook-i18n-helpers", "mdbook-spec", @@ -1397,7 +1398,7 @@ version = "1.0.8" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "11181fbabf243db407ef8df94a6ce0b2f9a733bd8be4ad02b4eda9602296cac8" dependencies = [ - "bitflags 2.9.1", + "bitflags 2.9.2", "errno", "libc", "linux-raw-sys", @@ -1546,9 +1547,9 @@ checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f" [[package]] name = "syn" -version = "2.0.104" +version = "2.0.106" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "17b6f705963418cdb9927482fa304bc562ece2fdd4f616084c50b7023b435a40" +checksum = "ede7c438028d4436d71104916910f5bb611972c5cfd7f89b8300a8186e6fada6" dependencies = [ "proc-macro2", "quote", @@ -1612,12 +1613,12 @@ dependencies = [ [[package]] name = "terminal_size" -version = "0.4.2" +version = "0.4.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "45c6481c4829e4cc63825e62c49186a34538b7b2750b73b266581ffb612fb5ed" +checksum = "60b8cb979cb11c32ce1603f8137b22262a9d131aaa5c37b5678025f22b8becd0" dependencies = [ "rustix", - "windows-sys 0.59.0", + "windows-sys 0.60.2", ] [[package]] @@ -1637,11 +1638,11 @@ dependencies = [ [[package]] name = "thiserror" -version = "2.0.12" +version = "2.0.15" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "567b8a2dae586314f7be2a752ec7474332959c6460e02bde30d702a66d488708" +checksum = "80d76d3f064b981389ecb4b6b7f45a0bf9fdac1d5b9204c7bd6714fecc302850" dependencies = [ - "thiserror-impl 2.0.12", + "thiserror-impl 2.0.15", ] [[package]] @@ -1657,9 +1658,9 @@ dependencies = [ [[package]] name = "thiserror-impl" -version = "2.0.12" +version = "2.0.15" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "7f7cf42b4507d8ea322120659672cf1b9dbb93f8f2d4ecfd6e51350ff5b17a1d" +checksum = "44d29feb33e986b6ea906bd9c3559a856983f92371b3eaa5e83782a351623de0" dependencies = [ "proc-macro2", "quote", @@ -2116,7 +2117,7 @@ version = "0.39.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "6f42320e61fe2cfd34354ecb597f86f413484a798ba44a8ca1165c58d42da6c1" dependencies = [ - "bitflags 2.9.1", + "bitflags 2.9.2", ] [[package]] diff --git a/src/tools/rustbook/Cargo.toml b/src/tools/rustbook/Cargo.toml index c7c6e39f157..b34c39c225d 100644 --- a/src/tools/rustbook/Cargo.toml +++ b/src/tools/rustbook/Cargo.toml @@ -10,6 +10,9 @@ edition = "2021" [dependencies] clap = "4.0.32" env_logger = "0.11" +# FIXME: Remove this pin once this rustix issue is resolved +# https://github.com/bytecodealliance/rustix/issues/1496 +libc = "=0.2.174" mdbook-trpl = { path = "../../doc/book/packages/mdbook-trpl" } mdbook-i18n-helpers = "0.3.3" mdbook-spec = { path = "../../doc/reference/mdbook-spec" } diff --git a/src/tools/rustdoc-js/tester.js b/src/tools/rustdoc-js/tester.js index a1e632ce743..ff809d58e90 100644 --- a/src/tools/rustdoc-js/tester.js +++ b/src/tools/rustdoc-js/tester.js @@ -405,6 +405,24 @@ async function runChecks(testFile, doSearch, parseQuery) { return res; } +function mostRecentMatch(staticFiles, regex) { + const matchingEntries = fs.readdirSync(staticFiles) + .filter(f => f.match(regex)) + .map(f => { + const stats = fs.statSync(path.join(staticFiles, f)); + return { + path: f, + time: stats.mtimeMs, + }; + }); + if (matchingEntries.length === 0) { + throw "No static file matching regex"; + } + // We sort entries in descending order. + matchingEntries.sort((a, b) => b.time - a.time); + return matchingEntries[0].path; +} + /** * Load searchNNN.js and search-indexNNN.js. * @@ -417,9 +435,9 @@ async function runChecks(testFile, doSearch, parseQuery) { */ async function loadSearchJS(doc_folder, resource_suffix) { const staticFiles = path.join(doc_folder, "static.files"); - const stringdexJs = fs.readdirSync(staticFiles).find(f => f.match(/stringdex.*\.js$/)); + const stringdexJs = mostRecentMatch(staticFiles, /stringdex.*\.js$/); const stringdexModule = require(path.join(staticFiles, stringdexJs)); - const searchJs = fs.readdirSync(staticFiles).find(f => f.match(/search.*\.js$/)); + const searchJs = mostRecentMatch(staticFiles, /search-[0-9a-f]{8}.*\.js$/); const searchModule = require(path.join(staticFiles, searchJs)); globalThis.nonnull = (x, msg) => { if (x === null) { diff --git a/src/tools/rustfmt/Cargo.toml b/src/tools/rustfmt/Cargo.toml index e497b792342..6392ffbe409 100644 --- a/src/tools/rustfmt/Cargo.toml +++ b/src/tools/rustfmt/Cargo.toml @@ -40,7 +40,7 @@ cargo_metadata = "0.18" clap = { version = "4.4.2", features = ["derive"] } clap-cargo = "0.12.0" diff = "0.1" -dirs = "5.0" +dirs = "6.0" getopts = "0.2" ignore = "0.4" itertools = "0.12" diff --git a/src/tools/rustfmt/src/items.rs b/src/tools/rustfmt/src/items.rs index 10df6f96702..6555679c394 100644 --- a/src/tools/rustfmt/src/items.rs +++ b/src/tools/rustfmt/src/items.rs @@ -3600,7 +3600,7 @@ pub(crate) fn rewrite_extern_crate( pub(crate) fn is_mod_decl(item: &ast::Item) -> bool { !matches!( item.kind, - ast::ItemKind::Mod(_, _, ast::ModKind::Loaded(_, ast::Inline::Yes, _, _)) + ast::ItemKind::Mod(_, _, ast::ModKind::Loaded(_, ast::Inline::Yes, _)) ) } diff --git a/src/tools/rustfmt/src/modules.rs b/src/tools/rustfmt/src/modules.rs index 3bc656b64b3..af9feccb32e 100644 --- a/src/tools/rustfmt/src/modules.rs +++ b/src/tools/rustfmt/src/modules.rs @@ -316,11 +316,12 @@ impl<'ast, 'psess, 'c> ModResolver<'ast, 'psess> { self.directory = directory; } match (sub_mod.ast_mod_kind, sub_mod.items) { - (Some(Cow::Borrowed(ast::ModKind::Loaded(items, _, _, _))), _) => { + (Some(Cow::Borrowed(ast::ModKind::Loaded(items, _, _))), _) => { self.visit_mod_from_ast(items) } - (Some(Cow::Owned(ast::ModKind::Loaded(items, _, _, _))), _) - | (_, Cow::Owned(items)) => self.visit_mod_outside_ast(items), + (Some(Cow::Owned(ast::ModKind::Loaded(items, _, _))), _) | (_, Cow::Owned(items)) => { + self.visit_mod_outside_ast(items) + } (_, _) => Ok(()), } } diff --git a/src/tools/rustfmt/src/visitor.rs b/src/tools/rustfmt/src/visitor.rs index 23d07c930d9..a3acbb218ff 100644 --- a/src/tools/rustfmt/src/visitor.rs +++ b/src/tools/rustfmt/src/visitor.rs @@ -942,7 +942,7 @@ impl<'b, 'a: 'b> FmtVisitor<'a> { let ident_str = rewrite_ident(&self.get_context(), ident).to_owned(); self.push_str(&ident_str); - if let ast::ModKind::Loaded(ref items, ast::Inline::Yes, ref spans, _) = mod_kind { + if let ast::ModKind::Loaded(ref items, ast::Inline::Yes, ref spans) = mod_kind { let ast::ModSpans { inner_span, inject_use_span: _, diff --git a/src/tools/tidy/src/deps.rs b/src/tools/tidy/src/deps.rs index 858b058cb7d..80b6d54ce1c 100644 --- a/src/tools/tidy/src/deps.rs +++ b/src/tools/tidy/src/deps.rs @@ -592,6 +592,8 @@ pub fn check(root: &Path, cargo: &Path, bless: bool, bad: &mut bool) { if workspace == "library" { check_runtime_license_exceptions(&metadata, bad); + check_runtime_no_duplicate_dependencies(&metadata, bad); + check_runtime_no_proc_macros(&metadata, bad); checked_runtime_licenses = true; } } @@ -790,6 +792,37 @@ fn check_license_exceptions( } } +fn check_runtime_no_duplicate_dependencies(metadata: &Metadata, bad: &mut bool) { + let mut seen_pkgs = HashSet::new(); + for pkg in &metadata.packages { + if pkg.source.is_none() { + continue; + } + + if !seen_pkgs.insert(&*pkg.name) { + tidy_error!( + bad, + "duplicate package `{}` is not allowed for the standard library", + pkg.name + ); + } + } +} + +fn check_runtime_no_proc_macros(metadata: &Metadata, bad: &mut bool) { + for pkg in &metadata.packages { + if pkg.targets.iter().any(|target| target.is_proc_macro()) { + tidy_error!( + bad, + "proc macro `{}` is not allowed as standard library dependency.\n\ + Using proc macros in the standard library would break cross-compilation \ + as proc-macros don't get shipped for the host tuple.", + pkg.name + ); + } + } +} + /// Checks the dependency of `restricted_dependency_crates` at the given path. Changes `bad` to /// `true` if a check failed. /// diff --git a/src/tools/tidy/src/extra_checks/mod.rs b/src/tools/tidy/src/extra_checks/mod.rs index f90f716cd95..31169ec5967 100644 --- a/src/tools/tidy/src/extra_checks/mod.rs +++ b/src/tools/tidy/src/extra_checks/mod.rs @@ -41,7 +41,6 @@ const RUFF_CONFIG_PATH: &[&str] = &["src", "tools", "tidy", "config", "ruff.toml const RUFF_CACHE_PATH: &[&str] = &["cache", "ruff_cache"]; const PIP_REQ_PATH: &[&str] = &["src", "tools", "tidy", "config", "requirements.txt"]; -// this must be kept in sync with with .github/workflows/spellcheck.yml const SPELLCHECK_DIRS: &[&str] = &["compiler", "library", "src/bootstrap", "src/librustdoc"]; pub fn check( @@ -51,6 +50,7 @@ pub fn check( librustdoc_path: &Path, tools_path: &Path, npm: &Path, + cargo: &Path, bless: bool, extra_checks: Option<&str>, pos_args: &[String], @@ -63,6 +63,7 @@ pub fn check( librustdoc_path, tools_path, npm, + cargo, bless, extra_checks, pos_args, @@ -78,6 +79,7 @@ fn check_impl( librustdoc_path: &Path, tools_path: &Path, npm: &Path, + cargo: &Path, bless: bool, extra_checks: Option<&str>, pos_args: &[String], @@ -293,7 +295,7 @@ fn check_impl( } else { eprintln!("spellcheck files"); } - spellcheck_runner(&args)?; + spellcheck_runner(root_path, &outdir, &cargo, &args)?; } if js_lint || js_typecheck { @@ -576,34 +578,25 @@ fn shellcheck_runner(args: &[&OsStr]) -> Result<(), Error> { if status.success() { Ok(()) } else { Err(Error::FailedCheck("shellcheck")) } } -/// Check that spellchecker is installed then run it at the given path -fn spellcheck_runner(args: &[&str]) -> Result<(), Error> { - // sync version with .github/workflows/spellcheck.yml - let expected_version = "typos-cli 1.34.0"; - match Command::new("typos").arg("--version").output() { - Ok(o) => { - let stdout = String::from_utf8_lossy(&o.stdout); - if stdout.trim() != expected_version { - return Err(Error::Version { - program: "typos", - required: expected_version, - installed: stdout.trim().to_string(), - }); +/// Ensure that spellchecker is installed then run it at the given path +fn spellcheck_runner( + src_root: &Path, + outdir: &Path, + cargo: &Path, + args: &[&str], +) -> Result<(), Error> { + let bin_path = + crate::ensure_version_or_cargo_install(outdir, cargo, "typos-cli", "typos", "1.34.0")?; + match Command::new(bin_path).current_dir(src_root).args(args).status() { + Ok(status) => { + if status.success() { + Ok(()) + } else { + Err(Error::FailedCheck("typos")) } } - Err(e) if e.kind() == io::ErrorKind::NotFound => { - return Err(Error::MissingReq( - "typos", - "spellcheck file checks", - // sync version with .github/workflows/spellcheck.yml - Some("install tool via `cargo install typos-cli@1.34.0`".to_owned()), - )); - } - Err(e) => return Err(e.into()), + Err(err) => Err(Error::Generic(format!("failed to run typos tool: {err:?}"))), } - - let status = Command::new("typos").args(args).status()?; - if status.success() { Ok(()) } else { Err(Error::FailedCheck("typos")) } } /// Check git for tracked files matching an extension diff --git a/src/tools/tidy/src/lib.rs b/src/tools/tidy/src/lib.rs index 4ea9d051ddb..37713cbf75e 100644 --- a/src/tools/tidy/src/lib.rs +++ b/src/tools/tidy/src/lib.rs @@ -4,7 +4,9 @@ //! to be used by tools. use std::ffi::OsStr; +use std::path::{Path, PathBuf}; use std::process::Command; +use std::{env, io}; use build_helper::ci::CiEnv; use build_helper::git::{GitConfig, get_closest_upstream_commit}; @@ -180,6 +182,70 @@ pub fn files_modified(ci_info: &CiInfo, pred: impl Fn(&str) -> bool) -> bool { !v.is_empty() } +/// If the given executable is installed with the given version, use that, +/// otherwise install via cargo. +pub fn ensure_version_or_cargo_install( + build_dir: &Path, + cargo: &Path, + pkg_name: &str, + bin_name: &str, + version: &str, +) -> io::Result<PathBuf> { + // ignore the process exit code here and instead just let the version number check fail. + // we also importantly don't return if the program wasn't installed, + // instead we want to continue to the fallback. + 'ck: { + // FIXME: rewrite as if-let chain once this crate is 2024 edition. + let Ok(output) = Command::new(bin_name).arg("--version").output() else { + break 'ck; + }; + let Ok(s) = str::from_utf8(&output.stdout) else { + break 'ck; + }; + let Some(v) = s.trim().split_whitespace().last() else { + break 'ck; + }; + if v == version { + return Ok(PathBuf::from(bin_name)); + } + } + + let tool_root_dir = build_dir.join("misc-tools"); + let tool_bin_dir = tool_root_dir.join("bin"); + eprintln!("building external tool {bin_name} from package {pkg_name}@{version}"); + // use --force to ensure that if the required version is bumped, we update it. + // use --target-dir to ensure we have a build cache so repeated invocations aren't slow. + // modify PATH so that cargo doesn't print a warning telling the user to modify the path. + let cargo_exit_code = Command::new(cargo) + .args(["install", "--locked", "--force", "--quiet"]) + .arg("--root") + .arg(&tool_root_dir) + .arg("--target-dir") + .arg(tool_root_dir.join("target")) + .arg(format!("{pkg_name}@{version}")) + .env( + "PATH", + env::join_paths( + env::split_paths(&env::var("PATH").unwrap()) + .chain(std::iter::once(tool_bin_dir.clone())), + ) + .expect("build dir contains invalid char"), + ) + .env("RUSTFLAGS", "-Copt-level=0") + .spawn()? + .wait()?; + if !cargo_exit_code.success() { + return Err(io::Error::other("cargo install failed")); + } + let bin_path = tool_bin_dir.join(bin_name); + assert!( + matches!(bin_path.try_exists(), Ok(true)), + "cargo install did not produce the expected binary" + ); + eprintln!("finished building tool {bin_name}"); + Ok(bin_path) +} + pub mod alphabetical; pub mod bins; pub mod debug_artifacts; diff --git a/src/tools/tidy/src/main.rs b/src/tools/tidy/src/main.rs index cd2567ddb64..bfe30258915 100644 --- a/src/tools/tidy/src/main.rs +++ b/src/tools/tidy/src/main.rs @@ -184,6 +184,7 @@ fn main() { &librustdoc_path, &tools_path, &npm, + &cargo, bless, extra_checks, pos_args diff --git a/tests/assembly-llvm/asm/mips-types.rs b/tests/assembly-llvm/asm/mips-types.rs index 00e8ce0b874..1dd345ff8fe 100644 --- a/tests/assembly-llvm/asm/mips-types.rs +++ b/tests/assembly-llvm/asm/mips-types.rs @@ -94,7 +94,6 @@ check!(reg_f32, f32, freg, "mov.s"); // CHECK: #APP // CHECK: mov.s $f0, $f0 // CHECK: #NO_APP -#[no_mangle] check_reg!(f0_f32, f32, "$f0", "mov.s"); // CHECK-LABEL: reg_f32_64: @@ -107,21 +106,18 @@ check!(reg_f32_64, f32, freg, "mov.d"); // CHECK: #APP // CHECK: mov.d $f0, $f0 // CHECK: #NO_APP -#[no_mangle] check_reg!(f0_f32_64, f32, "$f0", "mov.d"); // CHECK-LABEL: reg_f64: // CHECK: #APP // CHECK: mov.d $f{{[0-9]+}}, $f{{[0-9]+}} // CHECK: #NO_APP -#[no_mangle] check!(reg_f64, f64, freg, "mov.d"); // CHECK-LABEL: f0_f64: // CHECK: #APP // CHECK: mov.d $f0, $f0 // CHECK: #NO_APP -#[no_mangle] check_reg!(f0_f64, f64, "$f0", "mov.d"); // CHECK-LABEL: reg_ptr: diff --git a/tests/assembly-llvm/force-target-feature.rs b/tests/assembly-llvm/force-target-feature.rs new file mode 100644 index 00000000000..c11060d8d6d --- /dev/null +++ b/tests/assembly-llvm/force-target-feature.rs @@ -0,0 +1,33 @@ +//@ only-x86_64 +//@ assembly-output: emit-asm +//@ compile-flags: -C opt-level=3 -C target-feature=-avx2 +//@ ignore-sgx Tests incompatible with LVI mitigations + +#![feature(effective_target_features)] + +use std::arch::x86_64::{__m256i, _mm256_add_epi32, _mm256_setzero_si256}; +use std::ops::Add; + +#[derive(Clone, Copy)] +struct AvxU32(__m256i); + +impl Add<AvxU32> for AvxU32 { + type Output = Self; + + #[no_mangle] + #[inline(never)] + #[unsafe(force_target_feature(enable = "avx2"))] + fn add(self, oth: AvxU32) -> AvxU32 { + // CHECK-LABEL: add: + // CHECK-NOT: callq + // CHECK: vpaddd + // CHECK: retq + Self(_mm256_add_epi32(self.0, oth.0)) + } +} + +fn main() { + assert!(is_x86_feature_detected!("avx2")); + let v = AvxU32(unsafe { _mm256_setzero_si256() }); + v + v; +} diff --git a/tests/assembly-llvm/s390x-vector-abi.rs b/tests/assembly-llvm/s390x-vector-abi.rs index fcf42664034..c9c3266a18f 100644 --- a/tests/assembly-llvm/s390x-vector-abi.rs +++ b/tests/assembly-llvm/s390x-vector-abi.rs @@ -1,4 +1,5 @@ //@ revisions: z10 z10_vector z13 z13_no_vector +//@ add-core-stubs // ignore-tidy-linelength //@ assembly-output: emit-asm //@ compile-flags: -Copt-level=3 -Z merge-functions=disabled @@ -18,24 +19,8 @@ // Cases where vector feature is disabled are rejected. // See tests/ui/simd-abi-checks-s390x.rs for test for them. -#[lang = "pointee_sized"] -pub trait PointeeSized {} - -#[lang = "meta_sized"] -pub trait MetaSized: PointeeSized {} - -#[lang = "sized"] -pub trait Sized: MetaSized {} -#[lang = "copy"] -pub trait Copy {} -#[lang = "freeze"] -pub trait Freeze {} - -impl<T: Copy, const N: usize> Copy for [T; N] {} - -#[lang = "phantom_data"] -pub struct PhantomData<T: ?Sized>; -impl<T: ?Sized> Copy for PhantomData<T> {} +extern crate minicore; +use minicore::*; #[repr(simd)] pub struct i8x8([i8; 8]); @@ -52,8 +37,6 @@ pub struct WrapperWithZst<T>(T, PhantomData<()>); #[repr(transparent)] pub struct TransparentWrapper<T>(T); -impl Copy for i8 {} -impl Copy for i64 {} impl Copy for i8x8 {} impl Copy for i8x16 {} impl Copy for i8x32 {} @@ -221,7 +204,7 @@ unsafe extern "C" fn vector_transparent_wrapper_ret_large( #[cfg_attr(no_vector, target_feature(enable = "vector"))] #[no_mangle] unsafe extern "C" fn vector_arg_small(x: i8x8) -> i64 { - unsafe { *(&x as *const i8x8 as *const i64) } + unsafe { *(&raw const x as *const i64) } } // CHECK-LABEL: vector_arg: // CHECK: vlgvg %r2, %v24, 0 @@ -229,7 +212,7 @@ unsafe extern "C" fn vector_arg_small(x: i8x8) -> i64 { #[cfg_attr(no_vector, target_feature(enable = "vector"))] #[no_mangle] unsafe extern "C" fn vector_arg(x: i8x16) -> i64 { - unsafe { *(&x as *const i8x16 as *const i64) } + unsafe { *(&raw const x as *const i64) } } // CHECK-LABEL: vector_arg_large: // CHECK: lg %r2, 0(%r2) @@ -237,7 +220,7 @@ unsafe extern "C" fn vector_arg(x: i8x16) -> i64 { #[cfg_attr(no_vector, target_feature(enable = "vector"))] #[no_mangle] unsafe extern "C" fn vector_arg_large(x: i8x32) -> i64 { - unsafe { *(&x as *const i8x32 as *const i64) } + unsafe { *(&raw const x as *const i64) } } // CHECK-LABEL: vector_wrapper_arg_small: @@ -246,7 +229,7 @@ unsafe extern "C" fn vector_arg_large(x: i8x32) -> i64 { #[cfg_attr(no_vector, target_feature(enable = "vector"))] #[no_mangle] unsafe extern "C" fn vector_wrapper_arg_small(x: Wrapper<i8x8>) -> i64 { - unsafe { *(&x as *const Wrapper<i8x8> as *const i64) } + unsafe { *(&raw const x as *const i64) } } // CHECK-LABEL: vector_wrapper_arg: // CHECK: vlgvg %r2, %v24, 0 @@ -254,7 +237,7 @@ unsafe extern "C" fn vector_wrapper_arg_small(x: Wrapper<i8x8>) -> i64 { #[cfg_attr(no_vector, target_feature(enable = "vector"))] #[no_mangle] unsafe extern "C" fn vector_wrapper_arg(x: Wrapper<i8x16>) -> i64 { - unsafe { *(&x as *const Wrapper<i8x16> as *const i64) } + unsafe { *(&raw const x as *const i64) } } // CHECK-LABEL: vector_wrapper_arg_large: // CHECK: lg %r2, 0(%r2) @@ -262,7 +245,7 @@ unsafe extern "C" fn vector_wrapper_arg(x: Wrapper<i8x16>) -> i64 { #[cfg_attr(no_vector, target_feature(enable = "vector"))] #[no_mangle] unsafe extern "C" fn vector_wrapper_arg_large(x: Wrapper<i8x32>) -> i64 { - unsafe { *(&x as *const Wrapper<i8x32> as *const i64) } + unsafe { *(&raw const x as *const i64) } } // https://github.com/rust-lang/rust/pull/131586#discussion_r1837071121 @@ -272,7 +255,7 @@ unsafe extern "C" fn vector_wrapper_arg_large(x: Wrapper<i8x32>) -> i64 { #[cfg_attr(no_vector, target_feature(enable = "vector"))] #[no_mangle] unsafe extern "C" fn vector_wrapper_padding_arg(x: WrapperAlign16<i8x8>) -> i64 { - unsafe { *(&x as *const WrapperAlign16<i8x8> as *const i64) } + unsafe { *(&raw const x as *const i64) } } // CHECK-LABEL: vector_wrapper_with_zst_arg_small: @@ -282,7 +265,7 @@ unsafe extern "C" fn vector_wrapper_padding_arg(x: WrapperAlign16<i8x8>) -> i64 #[cfg_attr(no_vector, target_feature(enable = "vector"))] #[no_mangle] unsafe extern "C" fn vector_wrapper_with_zst_arg_small(x: WrapperWithZst<i8x8>) -> i64 { - unsafe { *(&x as *const WrapperWithZst<i8x8> as *const i64) } + unsafe { *(&raw const x as *const i64) } } // CHECK-LABEL: vector_wrapper_with_zst_arg: // CHECK: lg %r2, 0(%r2) @@ -290,7 +273,7 @@ unsafe extern "C" fn vector_wrapper_with_zst_arg_small(x: WrapperWithZst<i8x8>) #[cfg_attr(no_vector, target_feature(enable = "vector"))] #[no_mangle] unsafe extern "C" fn vector_wrapper_with_zst_arg(x: WrapperWithZst<i8x16>) -> i64 { - unsafe { *(&x as *const WrapperWithZst<i8x16> as *const i64) } + unsafe { *(&raw const x as *const i64) } } // CHECK-LABEL: vector_wrapper_with_zst_arg_large: // CHECK: lg %r2, 0(%r2) @@ -298,7 +281,7 @@ unsafe extern "C" fn vector_wrapper_with_zst_arg(x: WrapperWithZst<i8x16>) -> i6 #[cfg_attr(no_vector, target_feature(enable = "vector"))] #[no_mangle] unsafe extern "C" fn vector_wrapper_with_zst_arg_large(x: WrapperWithZst<i8x32>) -> i64 { - unsafe { *(&x as *const WrapperWithZst<i8x32> as *const i64) } + unsafe { *(&raw const x as *const i64) } } // CHECK-LABEL: vector_transparent_wrapper_arg_small: @@ -307,7 +290,7 @@ unsafe extern "C" fn vector_wrapper_with_zst_arg_large(x: WrapperWithZst<i8x32>) #[cfg_attr(no_vector, target_feature(enable = "vector"))] #[no_mangle] unsafe extern "C" fn vector_transparent_wrapper_arg_small(x: TransparentWrapper<i8x8>) -> i64 { - unsafe { *(&x as *const TransparentWrapper<i8x8> as *const i64) } + unsafe { *(&raw const x as *const i64) } } // CHECK-LABEL: vector_transparent_wrapper_arg: // CHECK: vlgvg %r2, %v24, 0 @@ -315,7 +298,7 @@ unsafe extern "C" fn vector_transparent_wrapper_arg_small(x: TransparentWrapper< #[cfg_attr(no_vector, target_feature(enable = "vector"))] #[no_mangle] unsafe extern "C" fn vector_transparent_wrapper_arg(x: TransparentWrapper<i8x16>) -> i64 { - unsafe { *(&x as *const TransparentWrapper<i8x16> as *const i64) } + unsafe { *(&raw const x as *const i64) } } // CHECK-LABEL: vector_transparent_wrapper_arg_large: // CHECK: lg %r2, 0(%r2) @@ -323,5 +306,5 @@ unsafe extern "C" fn vector_transparent_wrapper_arg(x: TransparentWrapper<i8x16> #[cfg_attr(no_vector, target_feature(enable = "vector"))] #[no_mangle] unsafe extern "C" fn vector_transparent_wrapper_arg_large(x: TransparentWrapper<i8x32>) -> i64 { - unsafe { *(&x as *const TransparentWrapper<i8x32> as *const i64) } + unsafe { *(&raw const x as *const i64) } } diff --git a/tests/assembly-llvm/targets/targets-elf.rs b/tests/assembly-llvm/targets/targets-elf.rs index a1d759ede2b..79347d0bbf6 100644 --- a/tests/assembly-llvm/targets/targets-elf.rs +++ b/tests/assembly-llvm/targets/targets-elf.rs @@ -1,6 +1,9 @@ //@ add-core-stubs //@ assembly-output: emit-asm // ignore-tidy-linelength +//@ revisions: aarch64_be_unknown_hermit +//@ [aarch64_be_unknown_hermit] compile-flags: --target aarch64_be-unknown-hermit +//@ [aarch64_be_unknown_hermit] needs-llvm-components: aarch64 //@ revisions: aarch64_be_unknown_linux_gnu //@ [aarch64_be_unknown_linux_gnu] compile-flags: --target aarch64_be-unknown-linux-gnu //@ [aarch64_be_unknown_linux_gnu] needs-llvm-components: aarch64 diff --git a/tests/assembly-llvm/x86_64-indirect-branch-cs-prefix.rs b/tests/assembly-llvm/x86_64-indirect-branch-cs-prefix.rs new file mode 100644 index 00000000000..8e4470ee451 --- /dev/null +++ b/tests/assembly-llvm/x86_64-indirect-branch-cs-prefix.rs @@ -0,0 +1,27 @@ +// Test that the `cs` prefix is (not) added into a `call` and a `jmp` to the +// indirect thunk when the `-Zindirect-branch-cs-prefix` flag is (not) set. + +//@ revisions: unset set +//@ assembly-output: emit-asm +//@ compile-flags: -Copt-level=3 -Cunsafe-allow-abi-mismatch=retpoline,retpoline-external-thunk,indirect-branch-cs-prefix -Zretpoline-external-thunk +//@ [set] compile-flags: -Zindirect-branch-cs-prefix +//@ only-x86_64 +//@ ignore-apple Symbol is called `___x86_indirect_thunk` (Darwin's extra underscore) + +#![crate_type = "lib"] + +// CHECK-LABEL: foo: +#[no_mangle] +pub fn foo(g: fn()) { + // unset-NOT: cs + // unset: callq {{__x86_indirect_thunk.*}} + // set: cs + // set-NEXT: callq {{__x86_indirect_thunk.*}} + g(); + + // unset-NOT: cs + // unset: jmp {{__x86_indirect_thunk.*}} + // set: cs + // set-NEXT: jmp {{__x86_indirect_thunk.*}} + g(); +} diff --git a/tests/codegen-llvm/abi-x86-interrupt.rs b/tests/codegen-llvm/abi-x86-interrupt.rs index 9a1ded2c9e3..b5c495803d8 100644 --- a/tests/codegen-llvm/abi-x86-interrupt.rs +++ b/tests/codegen-llvm/abi-x86-interrupt.rs @@ -15,4 +15,4 @@ use minicore::*; // CHECK: define x86_intrcc void @has_x86_interrupt_abi #[no_mangle] -pub extern "x86-interrupt" fn has_x86_interrupt_abi() {} +pub extern "x86-interrupt" fn has_x86_interrupt_abi(_p: *const u8) {} diff --git a/tests/codegen-llvm/binary-search-index-no-bound-check.rs b/tests/codegen-llvm/binary-search-index-no-bound-check.rs index d59c0beec64..8322c4179bd 100644 --- a/tests/codegen-llvm/binary-search-index-no-bound-check.rs +++ b/tests/codegen-llvm/binary-search-index-no-bound-check.rs @@ -8,8 +8,7 @@ #[no_mangle] pub fn binary_search_index_no_bounds_check(s: &[u8]) -> u8 { // CHECK-NOT: panic - // CHECK-NOT: slice_start_index_len_fail - // CHECK-NOT: slice_end_index_len_fail + // CHECK-NOT: slice_index_fail // CHECK-NOT: panic_bounds_check if let Ok(idx) = s.binary_search(&b'\\') { s[idx] } else { 42 } } diff --git a/tests/codegen-llvm/function-arguments.rs b/tests/codegen-llvm/function-arguments.rs index a3fafbe6f82..db508682862 100644 --- a/tests/codegen-llvm/function-arguments.rs +++ b/tests/codegen-llvm/function-arguments.rs @@ -80,7 +80,7 @@ pub fn option_nonzero_int(x: Option<NonZero<u64>>) -> Option<NonZero<u64>> { x } -// CHECK: @readonly_borrow(ptr noalias noundef readonly align 4 dereferenceable(4) %_1) +// CHECK: @readonly_borrow(ptr noalias noundef readonly align 4{{( captures\(address, read_provenance\))?}} dereferenceable(4) %_1) // FIXME #25759 This should also have `nocapture` #[no_mangle] pub fn readonly_borrow(_: &i32) {} @@ -91,12 +91,12 @@ pub fn readonly_borrow_ret() -> &'static i32 { loop {} } -// CHECK: @static_borrow(ptr noalias noundef readonly align 4 dereferenceable(4) %_1) +// CHECK: @static_borrow(ptr noalias noundef readonly align 4{{( captures\(address, read_provenance\))?}} dereferenceable(4) %_1) // static borrow may be captured #[no_mangle] pub fn static_borrow(_: &'static i32) {} -// CHECK: @named_borrow(ptr noalias noundef readonly align 4 dereferenceable(4) %_1) +// CHECK: @named_borrow(ptr noalias noundef readonly align 4{{( captures\(address, read_provenance\))?}} dereferenceable(4) %_1) // borrow with named lifetime may be captured #[no_mangle] pub fn named_borrow<'r>(_: &'r i32) {} @@ -129,7 +129,7 @@ pub fn mutable_borrow_ret() -> &'static mut i32 { // <https://github.com/rust-lang/unsafe-code-guidelines/issues/381>. pub fn mutable_notunpin_borrow(_: &mut NotUnpin) {} -// CHECK: @notunpin_borrow(ptr noalias noundef readonly align 4 dereferenceable(4) %_1) +// CHECK: @notunpin_borrow(ptr noalias noundef readonly align 4{{( captures\(address, read_provenance\))?}} dereferenceable(4) %_1) // But `&NotUnpin` behaves perfectly normal. #[no_mangle] pub fn notunpin_borrow(_: &NotUnpin) {} @@ -138,12 +138,12 @@ pub fn notunpin_borrow(_: &NotUnpin) {} #[no_mangle] pub fn indirect_struct(_: S) {} -// CHECK: @borrowed_struct(ptr noalias noundef readonly align 4 dereferenceable(32) %_1) +// CHECK: @borrowed_struct(ptr noalias noundef readonly align 4{{( captures\(address, read_provenance\))?}} dereferenceable(32) %_1) // FIXME #25759 This should also have `nocapture` #[no_mangle] pub fn borrowed_struct(_: &S) {} -// CHECK: @option_borrow(ptr noalias noundef readonly align 4 dereferenceable_or_null(4) %_x) +// CHECK: @option_borrow(ptr noalias noundef readonly align 4{{( captures\(address, read_provenance\))?}} dereferenceable_or_null(4) %_x) #[no_mangle] pub fn option_borrow(_x: Option<&i32>) {} @@ -185,7 +185,7 @@ pub fn _box(x: Box<i32>) -> Box<i32> { // With a custom allocator, it should *not* have `noalias`. (See // <https://github.com/rust-lang/miri/issues/3341> for why.) The second argument is the allocator, // which is a reference here that still carries `noalias` as usual. -// CHECK: @_box_custom(ptr noundef nonnull align 4 %x.0, ptr noalias noundef nonnull readonly align 1 %x.1) +// CHECK: @_box_custom(ptr noundef nonnull align 4 %x.0, ptr noalias noundef nonnull readonly align 1{{( captures\(address, read_provenance\))?}} %x.1) #[no_mangle] pub fn _box_custom(x: Box<i32, &std::alloc::Global>) { drop(x) @@ -208,7 +208,7 @@ pub fn struct_return() -> S { #[no_mangle] pub fn helper(_: usize) {} -// CHECK: @slice(ptr noalias noundef nonnull readonly align 1 %_1.0, [[USIZE]] noundef %_1.1) +// CHECK: @slice(ptr noalias noundef nonnull readonly align 1{{( captures\(address, read_provenance\))?}} %_1.0, [[USIZE]] noundef %_1.1) // FIXME #25759 This should also have `nocapture` #[no_mangle] pub fn slice(_: &[u8]) {} @@ -227,7 +227,7 @@ pub fn unsafe_slice(_: &[UnsafeInner]) {} #[no_mangle] pub fn raw_slice(_: *const [u8]) {} -// CHECK: @str(ptr noalias noundef nonnull readonly align 1 %_1.0, [[USIZE]] noundef %_1.1) +// CHECK: @str(ptr noalias noundef nonnull readonly align 1{{( captures\(address, read_provenance\))?}} %_1.0, [[USIZE]] noundef %_1.1) // FIXME #25759 This should also have `nocapture` #[no_mangle] pub fn str(_: &[u8]) {} @@ -259,7 +259,7 @@ pub fn trait_option(x: Option<Box<dyn Drop + Unpin>>) -> Option<Box<dyn Drop + U x } -// CHECK: { ptr, [[USIZE]] } @return_slice(ptr noalias noundef nonnull readonly align 2 %x.0, [[USIZE]] noundef %x.1) +// CHECK: { ptr, [[USIZE]] } @return_slice(ptr noalias noundef nonnull readonly align 2{{( captures\(address, read_provenance\))?}} %x.0, [[USIZE]] noundef %x.1) #[no_mangle] pub fn return_slice(x: &[u16]) -> &[u16] { x diff --git a/tests/codegen-llvm/indirect-branch-cs-prefix.rs b/tests/codegen-llvm/indirect-branch-cs-prefix.rs new file mode 100644 index 00000000000..df25008d5f0 --- /dev/null +++ b/tests/codegen-llvm/indirect-branch-cs-prefix.rs @@ -0,0 +1,18 @@ +// Test that the `indirect_branch_cs_prefix` module attribute is (not) +// emitted when the `-Zindirect-branch-cs-prefix` flag is (not) set. + +//@ add-core-stubs +//@ revisions: unset set +//@ needs-llvm-components: x86 +//@ compile-flags: --target x86_64-unknown-linux-gnu +//@ [set] compile-flags: -Zindirect-branch-cs-prefix + +#![crate_type = "lib"] +#![feature(no_core, lang_items)] +#![no_core] + +extern crate minicore; +use minicore::*; + +// unset-NOT: !{{[0-9]+}} = !{i32 4, !"indirect_branch_cs_prefix", i32 1} +// set: !{{[0-9]+}} = !{i32 4, !"indirect_branch_cs_prefix", i32 1} diff --git a/tests/codegen-llvm/integer-overflow.rs b/tests/codegen-llvm/integer-overflow.rs index 80362247a86..df7845be06d 100644 --- a/tests/codegen-llvm/integer-overflow.rs +++ b/tests/codegen-llvm/integer-overflow.rs @@ -10,7 +10,7 @@ pub struct S1<'a> { // CHECK-LABEL: @slice_no_index_order #[no_mangle] pub fn slice_no_index_order<'a>(s: &'a mut S1, n: usize) -> &'a [u8] { - // CHECK-NOT: slice_index_order_fail + // CHECK-COUNT-1: slice_index_fail let d = &s.data[s.position..s.position + n]; s.position += n; return d; @@ -19,6 +19,6 @@ pub fn slice_no_index_order<'a>(s: &'a mut S1, n: usize) -> &'a [u8] { // CHECK-LABEL: @test_check #[no_mangle] pub fn test_check<'a>(s: &'a mut S1, x: usize, y: usize) -> &'a [u8] { - // CHECK: slice_index_order_fail + // CHECK-COUNT-1: slice_index_fail &s.data[x..y] } diff --git a/tests/codegen-llvm/intrinsics/prefetch.rs b/tests/codegen-llvm/intrinsics/prefetch.rs index 3f9f21c85cb..41877872019 100644 --- a/tests/codegen-llvm/intrinsics/prefetch.rs +++ b/tests/codegen-llvm/intrinsics/prefetch.rs @@ -9,56 +9,48 @@ use std::intrinsics::{ #[no_mangle] pub fn check_prefetch_read_data(data: &[i8]) { - unsafe { - // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 0, i32 1) - prefetch_read_data(data.as_ptr(), 0); - // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 1, i32 1) - prefetch_read_data(data.as_ptr(), 1); - // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 2, i32 1) - prefetch_read_data(data.as_ptr(), 2); - // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 3, i32 1) - prefetch_read_data(data.as_ptr(), 3); - } + // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 0, i32 1) + prefetch_read_data::<_, 0>(data.as_ptr()); + // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 1, i32 1) + prefetch_read_data::<_, 1>(data.as_ptr()); + // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 2, i32 1) + prefetch_read_data::<_, 2>(data.as_ptr()); + // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 3, i32 1) + prefetch_read_data::<_, 3>(data.as_ptr()); } #[no_mangle] pub fn check_prefetch_write_data(data: &[i8]) { - unsafe { - // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 0, i32 1) - prefetch_write_data(data.as_ptr(), 0); - // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 1, i32 1) - prefetch_write_data(data.as_ptr(), 1); - // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 2, i32 1) - prefetch_write_data(data.as_ptr(), 2); - // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 3, i32 1) - prefetch_write_data(data.as_ptr(), 3); - } + // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 0, i32 1) + prefetch_write_data::<_, 0>(data.as_ptr()); + // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 1, i32 1) + prefetch_write_data::<_, 1>(data.as_ptr()); + // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 2, i32 1) + prefetch_write_data::<_, 2>(data.as_ptr()); + // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 3, i32 1) + prefetch_write_data::<_, 3>(data.as_ptr()); } #[no_mangle] pub fn check_prefetch_read_instruction(data: &[i8]) { - unsafe { - // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 0, i32 0) - prefetch_read_instruction(data.as_ptr(), 0); - // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 1, i32 0) - prefetch_read_instruction(data.as_ptr(), 1); - // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 2, i32 0) - prefetch_read_instruction(data.as_ptr(), 2); - // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 3, i32 0) - prefetch_read_instruction(data.as_ptr(), 3); - } + // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 0, i32 0) + prefetch_read_instruction::<_, 0>(data.as_ptr()); + // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 1, i32 0) + prefetch_read_instruction::<_, 1>(data.as_ptr()); + // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 2, i32 0) + prefetch_read_instruction::<_, 2>(data.as_ptr()); + // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 3, i32 0) + prefetch_read_instruction::<_, 3>(data.as_ptr()); } #[no_mangle] pub fn check_prefetch_write_instruction(data: &[i8]) { - unsafe { - // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 0, i32 0) - prefetch_write_instruction(data.as_ptr(), 0); - // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 1, i32 0) - prefetch_write_instruction(data.as_ptr(), 1); - // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 2, i32 0) - prefetch_write_instruction(data.as_ptr(), 2); - // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 3, i32 0) - prefetch_write_instruction(data.as_ptr(), 3); - } + // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 0, i32 0) + prefetch_write_instruction::<_, 0>(data.as_ptr()); + // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 1, i32 0) + prefetch_write_instruction::<_, 1>(data.as_ptr()); + // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 2, i32 0) + prefetch_write_instruction::<_, 2>(data.as_ptr()); + // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 3, i32 0) + prefetch_write_instruction::<_, 3>(data.as_ptr()); } diff --git a/tests/codegen-llvm/issues/and-masked-comparison-131162.rs b/tests/codegen-llvm/issues/and-masked-comparison-131162.rs new file mode 100644 index 00000000000..bdf021092fd --- /dev/null +++ b/tests/codegen-llvm/issues/and-masked-comparison-131162.rs @@ -0,0 +1,17 @@ +//@ compile-flags: -Copt-level=3 +//@ min-llvm-version: 20 + +#![crate_type = "lib"] + +// CHECK-LABEL: @issue_131162 +#[no_mangle] +pub fn issue_131162(a1: usize, a2: usize) -> bool { + const MASK: usize = 1; + + // CHECK-NOT: xor + // CHECK-NOT: trunc + // CHECK-NOT: and i1 + // CHECK: icmp + // CHECK-NEXT: ret + (a1 & !MASK) == (a2 & !MASK) && (a1 & MASK) == (a2 & MASK) +} diff --git a/tests/codegen-llvm/issues/assert-for-loop-bounds-check-71997.rs b/tests/codegen-llvm/issues/assert-for-loop-bounds-check-71997.rs new file mode 100644 index 00000000000..a0c64d607a8 --- /dev/null +++ b/tests/codegen-llvm/issues/assert-for-loop-bounds-check-71997.rs @@ -0,0 +1,18 @@ +// Tests that there's no bounds check within for-loop after asserting that +// the range start and end are within bounds. + +//@ compile-flags: -Copt-level=3 + +#![crate_type = "lib"] + +// CHECK-LABEL: @no_bounds_check_after_assert +#[no_mangle] +fn no_bounds_check_after_assert(slice: &[u64], start: usize, end: usize) -> u64 { + // CHECK-NOT: panic_bounds_check + let mut total = 0; + assert!(start < end && start < slice.len() && end <= slice.len()); + for i in start..end { + total += slice[i]; + } + total +} diff --git a/tests/codegen-llvm/issues/elided-division-by-zero-check-74917.rs b/tests/codegen-llvm/issues/elided-division-by-zero-check-74917.rs new file mode 100644 index 00000000000..9e890e14852 --- /dev/null +++ b/tests/codegen-llvm/issues/elided-division-by-zero-check-74917.rs @@ -0,0 +1,13 @@ +// Tests that there is no check for dividing by zero since the +// denominator, `(x - y)`, will always be greater than 0 since `x > y`. + +//@ compile-flags: -Copt-level=3 + +#![crate_type = "lib"] + +// CHECK-LABEL: @issue_74917 +#[no_mangle] +pub fn issue_74917(x: u16, y: u16) -> u16 { + // CHECK-NOT: panic + if x > y { 100 / (x - y) } else { 100 } +} diff --git a/tests/codegen-llvm/issues/for-loop-inner-assert-91109.rs b/tests/codegen-llvm/issues/for-loop-inner-assert-91109.rs new file mode 100644 index 00000000000..bffbcd7d069 --- /dev/null +++ b/tests/codegen-llvm/issues/for-loop-inner-assert-91109.rs @@ -0,0 +1,18 @@ +// Tests that there's no bounds check for the inner loop after the assert. + +//@ compile-flags: -Copt-level=3 + +#![crate_type = "lib"] + +// CHECK-LABEL: @zero +#[no_mangle] +pub fn zero(d: &mut [Vec<i32>]) { + // CHECK-NOT: panic_bounds_check + let n = d.len(); + for i in 0..n { + assert!(d[i].len() == n); + for j in 0..n { + d[i][j] = 0; + } + } +} diff --git a/tests/codegen-llvm/issues/issue-113757-bounds-check-after-cmp-max.rs b/tests/codegen-llvm/issues/issue-113757-bounds-check-after-cmp-max.rs index d495adf9980..0db8a5220ec 100644 --- a/tests/codegen-llvm/issues/issue-113757-bounds-check-after-cmp-max.rs +++ b/tests/codegen-llvm/issues/issue-113757-bounds-check-after-cmp-max.rs @@ -5,7 +5,7 @@ use std::cmp::max; // CHECK-LABEL: @foo -// CHECK-NOT: slice_start_index_len_fail +// CHECK-NOT: slice_index_fail // CHECK-NOT: unreachable #[no_mangle] pub fn foo(v: &mut Vec<u8>, size: usize) -> Option<&mut [u8]> { diff --git a/tests/codegen-llvm/issues/issue-27130.rs b/tests/codegen-llvm/issues/issue-27130.rs index 594e02af097..3e53c5cffd6 100644 --- a/tests/codegen-llvm/issues/issue-27130.rs +++ b/tests/codegen-llvm/issues/issue-27130.rs @@ -6,7 +6,7 @@ #[no_mangle] pub fn trim_in_place(a: &mut &[u8]) { while a.first() == Some(&42) { - // CHECK-NOT: slice_index_order_fail + // CHECK-NOT: slice_index_fail *a = &a[1..]; } } @@ -15,7 +15,7 @@ pub fn trim_in_place(a: &mut &[u8]) { #[no_mangle] pub fn trim_in_place2(a: &mut &[u8]) { while let Some(&42) = a.first() { - // CHECK-NOT: slice_index_order_fail + // CHECK-COUNT-1: slice_index_fail *a = &a[2..]; } } diff --git a/tests/codegen-llvm/issues/issue-69101-bounds-check.rs b/tests/codegen-llvm/issues/issue-69101-bounds-check.rs index 953b79aa263..f1857a9ce89 100644 --- a/tests/codegen-llvm/issues/issue-69101-bounds-check.rs +++ b/tests/codegen-llvm/issues/issue-69101-bounds-check.rs @@ -10,7 +10,7 @@ // CHECK-LABEL: @already_sliced_no_bounds_check #[no_mangle] pub fn already_sliced_no_bounds_check(a: &[u8], b: &[u8], c: &mut [u8]) { - // CHECK: slice_end_index_len_fail + // CHECK: slice_index_fail // CHECK-NOT: panic_bounds_check let _ = (&a[..2048], &b[..2048], &mut c[..2048]); for i in 0..1024 { @@ -21,7 +21,7 @@ pub fn already_sliced_no_bounds_check(a: &[u8], b: &[u8], c: &mut [u8]) { // CHECK-LABEL: @already_sliced_no_bounds_check_exact #[no_mangle] pub fn already_sliced_no_bounds_check_exact(a: &[u8], b: &[u8], c: &mut [u8]) { - // CHECK: slice_end_index_len_fail + // CHECK: slice_index_fail // CHECK-NOT: panic_bounds_check let _ = (&a[..1024], &b[..1024], &mut c[..1024]); for i in 0..1024 { @@ -33,7 +33,7 @@ pub fn already_sliced_no_bounds_check_exact(a: &[u8], b: &[u8], c: &mut [u8]) { // CHECK-LABEL: @already_sliced_bounds_check #[no_mangle] pub fn already_sliced_bounds_check(a: &[u8], b: &[u8], c: &mut [u8]) { - // CHECK: slice_end_index_len_fail + // CHECK: slice_index_fail // CHECK: panic_bounds_check let _ = (&a[..1023], &b[..2048], &mut c[..2048]); for i in 0..1024 { diff --git a/tests/codegen-llvm/issues/issue-73396-bounds-check-after-position.rs b/tests/codegen-llvm/issues/issue-73396-bounds-check-after-position.rs index 1e2c25babe0..8a2200478aa 100644 --- a/tests/codegen-llvm/issues/issue-73396-bounds-check-after-position.rs +++ b/tests/codegen-llvm/issues/issue-73396-bounds-check-after-position.rs @@ -8,8 +8,7 @@ #[no_mangle] pub fn position_slice_to_no_bounds_check(s: &[u8]) -> &[u8] { // CHECK-NOT: panic - // CHECK-NOT: slice_start_index_len_fail - // CHECK-NOT: slice_end_index_len_fail + // CHECK-NOT: slice_index_fail // CHECK-NOT: panic_bounds_check // CHECK-NOT: unreachable if let Some(idx) = s.iter().position(|b| *b == b'\\') { &s[..idx] } else { s } @@ -19,8 +18,7 @@ pub fn position_slice_to_no_bounds_check(s: &[u8]) -> &[u8] { #[no_mangle] pub fn position_slice_from_no_bounds_check(s: &[u8]) -> &[u8] { // CHECK-NOT: panic - // CHECK-NOT: slice_start_index_len_fail - // CHECK-NOT: slice_end_index_len_fail + // CHECK-NOT: slice_index_fail // CHECK-NOT: panic_bounds_check // CHECK-NOT: unreachable if let Some(idx) = s.iter().position(|b| *b == b'\\') { &s[idx..] } else { s } @@ -30,8 +28,7 @@ pub fn position_slice_from_no_bounds_check(s: &[u8]) -> &[u8] { #[no_mangle] pub fn position_index_no_bounds_check(s: &[u8]) -> u8 { // CHECK-NOT: panic - // CHECK-NOT: slice_start_index_len_fail - // CHECK-NOT: slice_end_index_len_fail + // CHECK-NOT: slice_index_fail // CHECK-NOT: panic_bounds_check // CHECK-NOT: unreachable if let Some(idx) = s.iter().position(|b| *b == b'\\') { s[idx] } else { 42 } @@ -40,8 +37,7 @@ pub fn position_index_no_bounds_check(s: &[u8]) -> u8 { #[no_mangle] pub fn rposition_slice_to_no_bounds_check(s: &[u8]) -> &[u8] { // CHECK-NOT: panic - // CHECK-NOT: slice_start_index_len_fail - // CHECK-NOT: slice_end_index_len_fail + // CHECK-NOT: slice_index_fail // CHECK-NOT: panic_bounds_check // CHECK-NOT: unreachable if let Some(idx) = s.iter().rposition(|b| *b == b'\\') { &s[..idx] } else { s } @@ -51,8 +47,7 @@ pub fn rposition_slice_to_no_bounds_check(s: &[u8]) -> &[u8] { #[no_mangle] pub fn rposition_slice_from_no_bounds_check(s: &[u8]) -> &[u8] { // CHECK-NOT: panic - // CHECK-NOT: slice_start_index_len_fail - // CHECK-NOT: slice_end_index_len_fail + // CHECK-NOT: slice_index_fail // CHECK-NOT: panic_bounds_check // CHECK-NOT: unreachable if let Some(idx) = s.iter().rposition(|b| *b == b'\\') { &s[idx..] } else { s } @@ -62,8 +57,7 @@ pub fn rposition_slice_from_no_bounds_check(s: &[u8]) -> &[u8] { #[no_mangle] pub fn rposition_index_no_bounds_check(s: &[u8]) -> u8 { // CHECK-NOT: panic - // CHECK-NOT: slice_start_index_len_fail - // CHECK-NOT: slice_end_index_len_fail + // CHECK-NOT: slice_index_fail // CHECK-NOT: panic_bounds_check // CHECK-NOT: unreachable if let Some(idx) = s.iter().rposition(|b| *b == b'\\') { s[idx] } else { 42 } diff --git a/tests/codegen-llvm/issues/iter-max-no-unwrap-failed-129583.rs b/tests/codegen-llvm/issues/iter-max-no-unwrap-failed-129583.rs new file mode 100644 index 00000000000..4d3fa4993ef --- /dev/null +++ b/tests/codegen-llvm/issues/iter-max-no-unwrap-failed-129583.rs @@ -0,0 +1,31 @@ +// Tests that `unwrap` is optimized out when the slice has a known length. +// The iterator may unroll for values smaller than a certain threshold so we +// use a larger value to prevent unrolling. + +//@ compile-flags: -Copt-level=3 +//@ min-llvm-version: 20 + +#![crate_type = "lib"] + +// CHECK-LABEL: @infallible_max_not_unrolled +#[no_mangle] +pub fn infallible_max_not_unrolled(x: &[u8; 1024]) -> u8 { + // CHECK-NOT: panic + // CHECK-NOT: unwrap_failed + *x.iter().max().unwrap() +} + +// CHECK-LABEL: @infallible_max_unrolled +#[no_mangle] +pub fn infallible_max_unrolled(x: &[u8; 10]) -> u8 { + // CHECK-NOT: panic + // CHECK-NOT: unwrap_failed + *x.iter().max().unwrap() +} + +// CHECK-LABEL: @may_panic_max +#[no_mangle] +pub fn may_panic_max(x: &[u8]) -> u8 { + // CHECK: unwrap_failed + *x.iter().max().unwrap() +} diff --git a/tests/codegen-llvm/issues/matches-logical-or-141497.rs b/tests/codegen-llvm/issues/matches-logical-or-141497.rs new file mode 100644 index 00000000000..348f62096a5 --- /dev/null +++ b/tests/codegen-llvm/issues/matches-logical-or-141497.rs @@ -0,0 +1,25 @@ +// Tests that `matches!` optimizes the same as +// `f == FrameType::Inter || f == FrameType::Switch`. + +//@ compile-flags: -Copt-level=3 +//@ min-llvm-version: 21 + +#![crate_type = "lib"] + +#[derive(Clone, Copy, PartialEq, Eq)] +pub enum FrameType { + Key = 0, + Inter = 1, + Intra = 2, + Switch = 3, +} + +// CHECK-LABEL: @is_inter_or_switch +#[no_mangle] +pub fn is_inter_or_switch(f: FrameType) -> bool { + // CHECK-NEXT: start: + // CHECK-NEXT: and i8 + // CHECK-NEXT: icmp + // CHECK-NEXT: ret + matches!(f, FrameType::Inter | FrameType::Switch) +} diff --git a/tests/codegen-llvm/issues/no-bounds-check-after-assert-110971.rs b/tests/codegen-llvm/issues/no-bounds-check-after-assert-110971.rs new file mode 100644 index 00000000000..aa4002f176d --- /dev/null +++ b/tests/codegen-llvm/issues/no-bounds-check-after-assert-110971.rs @@ -0,0 +1,14 @@ +// Tests that the slice access for `j` doesn't have a bounds check panic after +// being asserted as less than half of the slice length. + +//@ compile-flags: -Copt-level=3 + +#![crate_type = "lib"] + +// CHECK-LABEL: @check_only_assert_panic +#[no_mangle] +pub fn check_only_assert_panic(arr: &[u32], j: usize) -> u32 { + // CHECK-NOT: panic_bounds_check + assert!(j < arr.len() / 2); + arr[j] +} diff --git a/tests/codegen-llvm/issues/no-panic-for-pop-after-assert-71257.rs b/tests/codegen-llvm/issues/no-panic-for-pop-after-assert-71257.rs new file mode 100644 index 00000000000..68877c28d6c --- /dev/null +++ b/tests/codegen-llvm/issues/no-panic-for-pop-after-assert-71257.rs @@ -0,0 +1,19 @@ +// Tests that the `unwrap` branch is optimized out from the `pop` since the +// length has already been validated. + +//@ compile-flags: -Copt-level=3 + +#![crate_type = "lib"] + +pub enum Foo { + First(usize), + Second(usize), +} + +// CHECK-LABEL: @check_only_one_panic +#[no_mangle] +pub fn check_only_one_panic(v: &mut Vec<Foo>) -> Foo { + // CHECK-COUNT-1: call{{.+}}panic + assert!(v.len() == 1); + v.pop().unwrap() +} diff --git a/tests/codegen-llvm/issues/num-is-digit-to-digit-59352.rs b/tests/codegen-llvm/issues/num-is-digit-to-digit-59352.rs new file mode 100644 index 00000000000..1d23eb2cdf9 --- /dev/null +++ b/tests/codegen-llvm/issues/num-is-digit-to-digit-59352.rs @@ -0,0 +1,14 @@ +// Tests that there's no panic on unwrapping `to_digit` call after checking +// with `is_digit`. + +//@ compile-flags: -Copt-level=3 + +#![crate_type = "lib"] + +// CHECK-LABEL: @num_to_digit_slow +#[no_mangle] +pub fn num_to_digit_slow(num: char) -> u32 { + // CHECK-NOT: br + // CHECK-NOT: panic + if num.is_digit(8) { num.to_digit(8).unwrap() } else { 0 } +} diff --git a/tests/codegen-llvm/issues/slice-index-bounds-check-80075.rs b/tests/codegen-llvm/issues/slice-index-bounds-check-80075.rs new file mode 100644 index 00000000000..ecb5eb787c7 --- /dev/null +++ b/tests/codegen-llvm/issues/slice-index-bounds-check-80075.rs @@ -0,0 +1,13 @@ +// Tests that no bounds check panic is generated for `j` since +// `j <= i < data.len()`. + +//@ compile-flags: -Copt-level=3 + +#![crate_type = "lib"] + +// CHECK-LABEL: @issue_80075 +#[no_mangle] +pub fn issue_80075(data: &[u8], i: usize, j: usize) -> u8 { + // CHECK-NOT: panic_bounds_check + if i < data.len() && j <= i { data[j] } else { 0 } +} diff --git a/tests/codegen-llvm/naked-asan.rs b/tests/codegen-llvm/naked-asan.rs index 46218cf79d6..a57e55d1366 100644 --- a/tests/codegen-llvm/naked-asan.rs +++ b/tests/codegen-llvm/naked-asan.rs @@ -18,10 +18,10 @@ pub fn caller() { unsafe { asm!("call {}", sym page_fault_handler) } } -// CHECK: declare x86_intrcc void @page_fault_handler(){{.*}}#[[ATTRS:[0-9]+]] +// CHECK: declare x86_intrcc void @page_fault_handler(ptr {{.*}}, i64{{.*}}){{.*}}#[[ATTRS:[0-9]+]] #[unsafe(naked)] #[no_mangle] -pub extern "x86-interrupt" fn page_fault_handler() { +pub extern "x86-interrupt" fn page_fault_handler(_: u64, _: u64) { naked_asm!("ud2") } diff --git a/tests/codegen-llvm/range-attribute.rs b/tests/codegen-llvm/range-attribute.rs index b81ff9ab3e2..865d36d4747 100644 --- a/tests/codegen-llvm/range-attribute.rs +++ b/tests/codegen-llvm/range-attribute.rs @@ -67,7 +67,7 @@ pub fn enum2_value(x: Enum2) -> Enum2 { x } -// CHECK: noundef [[USIZE]] @takes_slice(ptr noalias noundef nonnull readonly align 4 %x.0, [[USIZE]] noundef %x.1) +// CHECK: noundef [[USIZE]] @takes_slice(ptr {{.*}} %x.0, [[USIZE]] noundef %x.1) #[no_mangle] pub fn takes_slice(x: &[i32]) -> usize { x.len() diff --git a/tests/codegen-llvm/read-only-capture-opt.rs b/tests/codegen-llvm/read-only-capture-opt.rs new file mode 100644 index 00000000000..78d56f8efc2 --- /dev/null +++ b/tests/codegen-llvm/read-only-capture-opt.rs @@ -0,0 +1,18 @@ +//@ compile-flags: -C opt-level=3 -Z mir-opt-level=0 +//@ min-llvm-version: 21 + +#![crate_type = "lib"] + +unsafe extern "C" { + safe fn do_something(p: &i32); +} + +#[unsafe(no_mangle)] +pub fn test() -> i32 { + // CHECK-LABEL: @test( + // CHECK: ret i32 0 + let i = 0; + do_something(&i); + do_something(&i); + i +} diff --git a/tests/codegen-llvm/s390x-simd.rs b/tests/codegen-llvm/s390x-simd.rs index ac39357519e..464c1be11f1 100644 --- a/tests/codegen-llvm/s390x-simd.rs +++ b/tests/codegen-llvm/s390x-simd.rs @@ -6,7 +6,7 @@ #![crate_type = "rlib"] #![feature(no_core, asm_experimental_arch)] -#![feature(s390x_target_feature, simd_ffi, link_llvm_intrinsics, repr_simd)] +#![feature(s390x_target_feature, simd_ffi, intrinsics, repr_simd)] #![no_core] extern crate minicore; @@ -30,16 +30,20 @@ struct f32x4([f32; 4]); #[repr(simd)] struct f64x2([f64; 2]); -#[allow(improper_ctypes)] -extern "C" { - #[link_name = "llvm.smax.v16i8"] - fn vmxb(a: i8x16, b: i8x16) -> i8x16; - #[link_name = "llvm.smax.v8i16"] - fn vmxh(a: i16x8, b: i16x8) -> i16x8; - #[link_name = "llvm.smax.v4i32"] - fn vmxf(a: i32x4, b: i32x4) -> i32x4; - #[link_name = "llvm.smax.v2i64"] - fn vmxg(a: i64x2, b: i64x2) -> i64x2; +impl Copy for i8x16 {} +impl Copy for i16x8 {} +impl Copy for i32x4 {} +impl Copy for i64x2 {} + +#[rustc_intrinsic] +unsafe fn simd_ge<T, U>(x: T, y: T) -> U; + +#[rustc_intrinsic] +unsafe fn simd_select<M, V>(mask: M, a: V, b: V) -> V; + +#[inline(always)] +unsafe fn simd_max<T: Copy>(a: T, b: T) -> T { + simd_select(simd_ge::<T, T>(a, b), a, b) } // CHECK-LABEL: define <16 x i8> @max_i8x16 @@ -48,7 +52,7 @@ extern "C" { #[no_mangle] #[target_feature(enable = "vector")] pub unsafe extern "C" fn max_i8x16(a: i8x16, b: i8x16) -> i8x16 { - vmxb(a, b) + simd_max(a, b) } // CHECK-LABEL: define <8 x i16> @max_i16x8 @@ -57,7 +61,7 @@ pub unsafe extern "C" fn max_i8x16(a: i8x16, b: i8x16) -> i8x16 { #[no_mangle] #[target_feature(enable = "vector")] pub unsafe extern "C" fn max_i16x8(a: i16x8, b: i16x8) -> i16x8 { - vmxh(a, b) + simd_max(a, b) } // CHECK-LABEL: define <4 x i32> @max_i32x4 @@ -66,7 +70,7 @@ pub unsafe extern "C" fn max_i16x8(a: i16x8, b: i16x8) -> i16x8 { #[no_mangle] #[target_feature(enable = "vector")] pub unsafe extern "C" fn max_i32x4(a: i32x4, b: i32x4) -> i32x4 { - vmxf(a, b) + simd_max(a, b) } // CHECK-LABEL: define <2 x i64> @max_i64x2 @@ -75,7 +79,7 @@ pub unsafe extern "C" fn max_i32x4(a: i32x4, b: i32x4) -> i32x4 { #[no_mangle] #[target_feature(enable = "vector")] pub unsafe extern "C" fn max_i64x2(a: i64x2, b: i64x2) -> i64x2 { - vmxg(a, b) + simd_max(a, b) } // CHECK-LABEL: define <4 x float> @choose_f32x4 @@ -108,7 +112,7 @@ pub unsafe extern "C" fn max_wrapper_i8x16(a: Wrapper<i8x16>, b: Wrapper<i8x16>) // CHECK: call <16 x i8> @llvm.smax.v16i8 // CHECK-SAME: <16 x i8> // CHECK-SAME: <16 x i8> - Wrapper(vmxb(a.0, b.0)) + Wrapper(simd_max(a.0, b.0)) } #[no_mangle] @@ -122,7 +126,7 @@ pub unsafe extern "C" fn max_wrapper_i64x2(a: Wrapper<i64x2>, b: Wrapper<i64x2>) // CHECK: call <2 x i64> @llvm.smax.v2i64 // CHECK-SAME: <2 x i64> // CHECK-SAME: <2 x i64> - Wrapper(vmxg(a.0, b.0)) + Wrapper(simd_max(a.0, b.0)) } #[no_mangle] diff --git a/tests/codegen-llvm/slice-last-elements-optimization.rs b/tests/codegen-llvm/slice-last-elements-optimization.rs index b90f91d7b17..d982cda709d 100644 --- a/tests/codegen-llvm/slice-last-elements-optimization.rs +++ b/tests/codegen-llvm/slice-last-elements-optimization.rs @@ -1,19 +1,18 @@ //@ compile-flags: -Copt-level=3 -//@ only-x86_64 //@ min-llvm-version: 20 #![crate_type = "lib"] // This test verifies that LLVM 20 properly optimizes the bounds check // when accessing the last few elements of a slice with proper conditions. // Previously, this would generate an unreachable branch to -// slice_start_index_len_fail even when the bounds check was provably safe. +// slice_index_fail even when the bounds check was provably safe. // CHECK-LABEL: @last_four_initial( #[no_mangle] pub fn last_four_initial(s: &[u8]) -> &[u8] { - // Previously this would generate a branch to slice_start_index_len_fail + // Previously this would generate a branch to slice_index_fail // that is unreachable. The LLVM 20 fix should eliminate this branch. - // CHECK-NOT: slice_start_index_len_fail + // CHECK-NOT: slice_index_fail // CHECK-NOT: unreachable let start = if s.len() <= 4 { 0 } else { s.len() - 4 }; &s[start..] @@ -23,7 +22,7 @@ pub fn last_four_initial(s: &[u8]) -> &[u8] { #[no_mangle] pub fn last_four_optimized(s: &[u8]) -> &[u8] { // This version was already correctly optimized before the fix in LLVM 20. - // CHECK-NOT: slice_start_index_len_fail + // CHECK-NOT: slice_index_fail // CHECK-NOT: unreachable if s.len() <= 4 { &s[0..] } else { &s[s.len() - 4..] } } @@ -32,6 +31,6 @@ pub fn last_four_optimized(s: &[u8]) -> &[u8] { // CHECK-LABEL: @test_bounds_check_happens( #[no_mangle] pub fn test_bounds_check_happens(s: &[u8], i: usize) -> &[u8] { - // CHECK: slice_start_index_len_fail + // CHECK: slice_index_fail &s[i..] } diff --git a/tests/codegen-llvm/slice-reverse.rs b/tests/codegen-llvm/slice-reverse.rs index e58d1c1d9d8..c31cff5010b 100644 --- a/tests/codegen-llvm/slice-reverse.rs +++ b/tests/codegen-llvm/slice-reverse.rs @@ -8,10 +8,10 @@ #[no_mangle] pub fn slice_reverse_u8(slice: &mut [u8]) { // CHECK-NOT: panic_bounds_check - // CHECK-NOT: slice_end_index_len_fail + // CHECK-NOT: slice_index_fail // CHECK: shufflevector <{{[0-9]+}} x i8> // CHECK-NOT: panic_bounds_check - // CHECK-NOT: slice_end_index_len_fail + // CHECK-NOT: slice_index_fail slice.reverse(); } @@ -19,9 +19,9 @@ pub fn slice_reverse_u8(slice: &mut [u8]) { #[no_mangle] pub fn slice_reverse_i32(slice: &mut [i32]) { // CHECK-NOT: panic_bounds_check - // CHECK-NOT: slice_end_index_len_fail + // CHECK-NOT: slice_index_fail // CHECK: shufflevector <{{[0-9]+}} x i32> // CHECK-NOT: panic_bounds_check - // CHECK-NOT: slice_end_index_len_fail + // CHECK-NOT: slice_index_fail slice.reverse(); } diff --git a/tests/codegen-llvm/vec-calloc.rs b/tests/codegen-llvm/vec-calloc.rs index d1c320ead01..15971bbfa00 100644 --- a/tests/codegen-llvm/vec-calloc.rs +++ b/tests/codegen-llvm/vec-calloc.rs @@ -1,4 +1,6 @@ +//@ revisions: normal llvm21 //@ compile-flags: -Copt-level=3 -Z merge-functions=disabled +//@ [llvm21] min-llvm-version: 21 //@ only-x86_64 #![crate_type = "lib"] @@ -176,6 +178,24 @@ pub fn vec_option_i32(n: usize) -> Vec<Option<i32>> { vec![None; n] } +// LLVM21-LABEL: @vec_array +#[cfg(llvm21)] +#[no_mangle] +pub fn vec_array(n: usize) -> Vec<[u32; 1_000_000]> { + // LLVM21-NOT: call {{.*}}alloc::vec::from_elem + // LLVM21-NOT: call {{.*}}reserve + // LLVM21-NOT: call {{.*}}__rust_alloc( + + // LLVM21: call {{.*}}__rust_alloc_zeroed( + + // LLVM21-NOT: call {{.*}}alloc::vec::from_elem + // LLVM21-NOT: call {{.*}}reserve + // LLVM21-NOT: call {{.*}}__rust_alloc( + + // LLVM21: ret void + vec![[0; 1_000_000]; 3] +} + // Ensure that __rust_alloc_zeroed gets the right attributes for LLVM to optimize it away. // CHECK: declare noalias noundef ptr @{{.*}}__rust_alloc_zeroed(i64 noundef, i64 allocalign noundef) unnamed_addr [[RUST_ALLOC_ZEROED_ATTRS:#[0-9]+]] diff --git a/tests/debuginfo/basic-stepping.rs b/tests/debuginfo/basic-stepping.rs index 6e1344d22a5..e7a70c8b087 100644 --- a/tests/debuginfo/basic-stepping.rs +++ b/tests/debuginfo/basic-stepping.rs @@ -3,6 +3,7 @@ //! Regression test for <https://github.com/rust-lang/rust/issues/33013>. //@ ignore-aarch64: Doesn't work yet. +//@ ignore-loongarch64: Doesn't work yet. //@ compile-flags: -g // gdb-command: run diff --git a/tests/debuginfo/borrowed-enum.rs b/tests/debuginfo/borrowed-enum.rs index 517b439ff15..893dd777bcd 100644 --- a/tests/debuginfo/borrowed-enum.rs +++ b/tests/debuginfo/borrowed-enum.rs @@ -22,11 +22,11 @@ // lldb-command:run // lldb-command:v *the_a_ref -// lldb-check:(borrowed_enum::ABC) *the_a_ref = { value = { x = 0 y = 8970181431921507452 } $discr$ = 0 } +// lldb-check:(borrowed_enum::ABC) *the_a_ref = { TheA = { x = 0 y = 8970181431921507452 } } // lldb-command:v *the_b_ref -// lldb-check:(borrowed_enum::ABC) *the_b_ref = { value = { 0 = 0 1 = 286331153 2 = 286331153 } $discr$ = 1 } +// lldb-check:(borrowed_enum::ABC) *the_b_ref = { TheB = { 0 = 0 1 = 286331153 2 = 286331153 } } // lldb-command:v *univariant_ref -// lldb-check:(borrowed_enum::Univariant) *univariant_ref = { value = { 0 = 4820353753753434 } } +// lldb-check:(borrowed_enum::Univariant) *univariant_ref = { TheOnlyCase = { 0 = 4820353753753434 } } #![allow(unused_variables)] diff --git a/tests/debuginfo/recursive-struct.rs b/tests/debuginfo/recursive-struct.rs index 5be90992848..427a7100a4f 100644 --- a/tests/debuginfo/recursive-struct.rs +++ b/tests/debuginfo/recursive-struct.rs @@ -62,6 +62,7 @@ use self::Opt::{Empty, Val}; use std::boxed::Box as B; +use std::marker::PhantomData; enum Opt<T> { Empty, @@ -98,6 +99,11 @@ struct LongCycleWithAnonymousTypes { value: usize, } +struct Expanding<T> { + a: PhantomData<T>, + b: *const Expanding<(T, T)>, +} + // This test case makes sure that recursive structs are properly described. The Node structs are // generic so that we can have a new type (that newly needs to be described) for the different // cases. The potential problem with recursive types is that the DI generation algorithm gets @@ -205,6 +211,9 @@ fn main() { value: 30 }))))); + // This type can generate new instances infinitely if not handled properly. + std::hint::black_box(Expanding::<()> { a: PhantomData, b: std::ptr::null() }); + zzz(); // #break } diff --git a/tests/mir-opt/building/index_array_and_slice.rs b/tests/mir-opt/building/index_array_and_slice.rs index f91b37567f7..42ede66d92b 100644 --- a/tests/mir-opt/building/index_array_and_slice.rs +++ b/tests/mir-opt/building/index_array_and_slice.rs @@ -55,7 +55,7 @@ struct WithSliceTail(f64, [i32]); fn index_custom(custom: &WithSliceTail, index: usize) -> &i32 { // CHECK: bb0: // CHECK: [[PTR:_.+]] = &raw const (fake) ((*_1).1: [i32]); - // CHECK: [[LEN:_.+]] = PtrMetadata(move [[PTR]]); + // CHECK: [[LEN:_.+]] = PtrMetadata(copy [[PTR]]); // CHECK: [[LT:_.+]] = Lt(copy _2, copy [[LEN]]); // CHECK: assert(move [[LT]], "index out of bounds{{.+}}", move [[LEN]], copy _2) -> [success: bb1, diff --git a/tests/mir-opt/dont_reset_cast_kind_without_updating_operand.test.GVN.32bit.panic-abort.diff b/tests/mir-opt/dont_reset_cast_kind_without_updating_operand.test.GVN.32bit.panic-abort.diff index 25ffff619e6..f203b80e477 100644 --- a/tests/mir-opt/dont_reset_cast_kind_without_updating_operand.test.GVN.32bit.panic-abort.diff +++ b/tests/mir-opt/dont_reset_cast_kind_without_updating_operand.test.GVN.32bit.panic-abort.diff @@ -112,7 +112,7 @@ StorageDead(_17); StorageDead(_16); StorageDead(_14); - _3 = ShallowInitBox(move _13, ()); + _3 = ShallowInitBox(copy _13, ()); StorageDead(_13); StorageDead(_12); StorageDead(_11); diff --git a/tests/mir-opt/dont_reset_cast_kind_without_updating_operand.test.GVN.64bit.panic-abort.diff b/tests/mir-opt/dont_reset_cast_kind_without_updating_operand.test.GVN.64bit.panic-abort.diff index 839b53e3b0b..f072eb6ef8b 100644 --- a/tests/mir-opt/dont_reset_cast_kind_without_updating_operand.test.GVN.64bit.panic-abort.diff +++ b/tests/mir-opt/dont_reset_cast_kind_without_updating_operand.test.GVN.64bit.panic-abort.diff @@ -112,7 +112,7 @@ StorageDead(_17); StorageDead(_16); StorageDead(_14); - _3 = ShallowInitBox(move _13, ()); + _3 = ShallowInitBox(copy _13, ()); StorageDead(_13); StorageDead(_12); StorageDead(_11); diff --git a/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.32bit.panic-abort.diff b/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.32bit.panic-abort.diff index c2d144c98c3..3f854b6cbcf 100644 --- a/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.32bit.panic-abort.diff +++ b/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.32bit.panic-abort.diff @@ -103,7 +103,7 @@ StorageDead(_6); _4 = copy _5 as *mut [u8] (Transmute); StorageDead(_5); - _3 = move _4 as *mut u8 (PtrToPtr); + _3 = copy _4 as *mut u8 (PtrToPtr); StorageDead(_4); StorageDead(_3); - StorageDead(_1); diff --git a/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.32bit.panic-unwind.diff b/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.32bit.panic-unwind.diff index 88bd4628c29..15a9d9e39c4 100644 --- a/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.32bit.panic-unwind.diff +++ b/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.32bit.panic-unwind.diff @@ -46,7 +46,7 @@ StorageDead(_6); _4 = copy _5 as *mut [u8] (Transmute); StorageDead(_5); - _3 = move _4 as *mut u8 (PtrToPtr); + _3 = copy _4 as *mut u8 (PtrToPtr); StorageDead(_4); StorageDead(_3); - StorageDead(_1); diff --git a/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.64bit.panic-abort.diff b/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.64bit.panic-abort.diff index 8641d2d6fa8..1dbe9394e70 100644 --- a/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.64bit.panic-abort.diff +++ b/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.64bit.panic-abort.diff @@ -103,7 +103,7 @@ StorageDead(_6); _4 = copy _5 as *mut [u8] (Transmute); StorageDead(_5); - _3 = move _4 as *mut u8 (PtrToPtr); + _3 = copy _4 as *mut u8 (PtrToPtr); StorageDead(_4); StorageDead(_3); - StorageDead(_1); diff --git a/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.64bit.panic-unwind.diff b/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.64bit.panic-unwind.diff index 0c52f1e0583..df008ececae 100644 --- a/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.64bit.panic-unwind.diff +++ b/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.main.GVN.64bit.panic-unwind.diff @@ -46,7 +46,7 @@ StorageDead(_6); _4 = copy _5 as *mut [u8] (Transmute); StorageDead(_5); - _3 = move _4 as *mut u8 (PtrToPtr); + _3 = copy _4 as *mut u8 (PtrToPtr); StorageDead(_4); StorageDead(_3); - StorageDead(_1); diff --git a/tests/mir-opt/pre-codegen/slice_index.slice_get_mut_usize.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_index.slice_get_mut_usize.PreCodegen.after.panic-abort.mir index d1b1e3d7dd7..ebe8b23354b 100644 --- a/tests/mir-opt/pre-codegen/slice_index.slice_get_mut_usize.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_index.slice_get_mut_usize.PreCodegen.after.panic-abort.mir @@ -30,7 +30,7 @@ fn slice_get_mut_usize(_1: &mut [u32], _2: usize) -> Option<&mut u32> { StorageDead(_3); StorageLive(_5); _5 = &mut (*_1)[_2]; - _0 = Option::<&mut u32>::Some(move _5); + _0 = Option::<&mut u32>::Some(copy _5); StorageDead(_5); goto -> bb3; } diff --git a/tests/mir-opt/pre-codegen/slice_index.slice_get_mut_usize.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_index.slice_get_mut_usize.PreCodegen.after.panic-unwind.mir index d1b1e3d7dd7..ebe8b23354b 100644 --- a/tests/mir-opt/pre-codegen/slice_index.slice_get_mut_usize.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_index.slice_get_mut_usize.PreCodegen.after.panic-unwind.mir @@ -30,7 +30,7 @@ fn slice_get_mut_usize(_1: &mut [u32], _2: usize) -> Option<&mut u32> { StorageDead(_3); StorageLive(_5); _5 = &mut (*_1)[_2]; - _0 = Option::<&mut u32>::Some(move _5); + _0 = Option::<&mut u32>::Some(copy _5); StorageDead(_5); goto -> bb3; } diff --git a/tests/mir-opt/pre-codegen/slice_index.slice_index_range.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_index.slice_index_range.PreCodegen.after.panic-abort.mir index 731f6438a6e..2df2c4b85b8 100644 --- a/tests/mir-opt/pre-codegen/slice_index.slice_index_range.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_index.slice_index_range.PreCodegen.after.panic-abort.mir @@ -4,14 +4,81 @@ fn slice_index_range(_1: &[u32], _2: std::ops::Range<usize>) -> &[u32] { debug slice => _1; debug index => _2; let mut _0: &[u32]; + let mut _3: usize; + let mut _4: usize; scope 1 (inlined #[track_caller] core::slice::index::<impl Index<std::ops::Range<usize>> for [u32]>::index) { + scope 2 (inlined #[track_caller] <std::ops::Range<usize> as SliceIndex<[u32]>>::index) { + let mut _7: usize; + let mut _8: bool; + let mut _9: *const [u32]; + let _12: *const [u32]; + let mut _13: usize; + let mut _14: !; + scope 3 (inlined core::num::<impl usize>::checked_sub) { + let mut _5: bool; + let mut _6: usize; + } + scope 4 (inlined core::slice::index::get_offset_len_noubcheck::<u32>) { + let _10: *const u32; + scope 5 { + let _11: *const u32; + scope 6 { + } + } + } + } } bb0: { - _0 = <std::ops::Range<usize> as SliceIndex<[u32]>>::index(move _2, move _1) -> [return: bb1, unwind unreachable]; + _3 = move (_2.0: usize); + _4 = move (_2.1: usize); + StorageLive(_5); + _5 = Lt(copy _4, copy _3); + switchInt(move _5) -> [0: bb1, otherwise: bb4]; } bb1: { + _6 = SubUnchecked(copy _4, copy _3); + StorageDead(_5); + StorageLive(_8); + StorageLive(_7); + _7 = PtrMetadata(copy _1); + _8 = Le(copy _4, move _7); + switchInt(move _8) -> [0: bb2, otherwise: bb3]; + } + + bb2: { + StorageDead(_7); + goto -> bb5; + } + + bb3: { + StorageDead(_7); + StorageLive(_12); + StorageLive(_9); + _9 = &raw const (*_1); + StorageLive(_10); + StorageLive(_11); + _10 = copy _9 as *const u32 (PtrToPtr); + _11 = Offset(copy _10, copy _3); + _12 = *const [u32] from (copy _11, copy _6); + StorageDead(_11); + StorageDead(_10); + StorageDead(_9); + _0 = &(*_12); + StorageDead(_12); + StorageDead(_8); return; } + + bb4: { + StorageDead(_5); + goto -> bb5; + } + + bb5: { + StorageLive(_13); + _13 = PtrMetadata(copy _1); + _14 = core::slice::index::slice_index_fail(move _3, move _4, move _13) -> unwind unreachable; + } } diff --git a/tests/mir-opt/pre-codegen/slice_index.slice_index_range.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_index.slice_index_range.PreCodegen.after.panic-unwind.mir index d879d06bb4e..d4b86b9633a 100644 --- a/tests/mir-opt/pre-codegen/slice_index.slice_index_range.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_index.slice_index_range.PreCodegen.after.panic-unwind.mir @@ -4,14 +4,81 @@ fn slice_index_range(_1: &[u32], _2: std::ops::Range<usize>) -> &[u32] { debug slice => _1; debug index => _2; let mut _0: &[u32]; + let mut _3: usize; + let mut _4: usize; scope 1 (inlined #[track_caller] core::slice::index::<impl Index<std::ops::Range<usize>> for [u32]>::index) { + scope 2 (inlined #[track_caller] <std::ops::Range<usize> as SliceIndex<[u32]>>::index) { + let mut _7: usize; + let mut _8: bool; + let mut _9: *const [u32]; + let _12: *const [u32]; + let mut _13: usize; + let mut _14: !; + scope 3 (inlined core::num::<impl usize>::checked_sub) { + let mut _5: bool; + let mut _6: usize; + } + scope 4 (inlined core::slice::index::get_offset_len_noubcheck::<u32>) { + let _10: *const u32; + scope 5 { + let _11: *const u32; + scope 6 { + } + } + } + } } bb0: { - _0 = <std::ops::Range<usize> as SliceIndex<[u32]>>::index(move _2, move _1) -> [return: bb1, unwind continue]; + _3 = move (_2.0: usize); + _4 = move (_2.1: usize); + StorageLive(_5); + _5 = Lt(copy _4, copy _3); + switchInt(move _5) -> [0: bb1, otherwise: bb4]; } bb1: { + _6 = SubUnchecked(copy _4, copy _3); + StorageDead(_5); + StorageLive(_8); + StorageLive(_7); + _7 = PtrMetadata(copy _1); + _8 = Le(copy _4, move _7); + switchInt(move _8) -> [0: bb2, otherwise: bb3]; + } + + bb2: { + StorageDead(_7); + goto -> bb5; + } + + bb3: { + StorageDead(_7); + StorageLive(_12); + StorageLive(_9); + _9 = &raw const (*_1); + StorageLive(_10); + StorageLive(_11); + _10 = copy _9 as *const u32 (PtrToPtr); + _11 = Offset(copy _10, copy _3); + _12 = *const [u32] from (copy _11, copy _6); + StorageDead(_11); + StorageDead(_10); + StorageDead(_9); + _0 = &(*_12); + StorageDead(_12); + StorageDead(_8); return; } + + bb4: { + StorageDead(_5); + goto -> bb5; + } + + bb5: { + StorageLive(_13); + _13 = PtrMetadata(copy _1); + _14 = core::slice::index::slice_index_fail(move _3, move _4, move _13) -> unwind continue; + } } diff --git a/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-abort.mir index d389e4069d0..72b39a7f6a8 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-abort.mir @@ -143,7 +143,7 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { _4 = &raw const (*_1); StorageLive(_5); _5 = copy _4 as *const T (PtrToPtr); - _6 = NonNull::<T> { pointer: move _5 }; + _6 = NonNull::<T> { pointer: copy _5 }; StorageDead(_5); StorageLive(_9); switchInt(const <T as std::mem::SizedTypeProperties>::IS_ZST) -> [0: bb1, otherwise: bb2]; @@ -155,7 +155,7 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { _7 = copy _4 as *mut T (PtrToPtr); _8 = Offset(copy _7, copy _3); StorageDead(_7); - _9 = move _8 as *const T (PtrToPtr); + _9 = copy _8 as *const T (PtrToPtr); StorageDead(_8); goto -> bb3; } @@ -202,7 +202,7 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { _17 = copy _14 as *mut T (Transmute); StorageLive(_18); _18 = copy _16 as *mut T (Transmute); - _19 = Eq(move _17, move _18); + _19 = Eq(copy _17, copy _18); StorageDead(_18); StorageDead(_17); switchInt(move _19) -> [0: bb6, otherwise: bb7]; @@ -214,9 +214,9 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { StorageLive(_21); StorageLive(_20); _20 = copy _14 as *const T (Transmute); - _21 = Offset(move _20, const 1_usize); + _21 = Offset(copy _20, const 1_usize); StorageDead(_20); - _22 = NonNull::<T> { pointer: move _21 }; + _22 = NonNull::<T> { pointer: copy _21 }; StorageDead(_21); _11 = move _22; StorageDead(_22); @@ -282,7 +282,7 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { StorageDead(_23); StorageDead(_15); StorageDead(_14); - _28 = move ((_27 as Some).0: &T); + _28 = copy ((_27 as Some).0: &T); StorageDead(_27); _29 = copy _13; _30 = AddWithOverflow(copy _13, const 1_usize); diff --git a/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-unwind.mir index 8c5fbda6392..42aa152ec99 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-unwind.mir @@ -70,7 +70,7 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { _4 = &raw const (*_1); StorageLive(_5); _5 = copy _4 as *const T (PtrToPtr); - _6 = NonNull::<T> { pointer: move _5 }; + _6 = NonNull::<T> { pointer: copy _5 }; StorageDead(_5); StorageLive(_9); switchInt(const <T as std::mem::SizedTypeProperties>::IS_ZST) -> [0: bb1, otherwise: bb2]; @@ -82,7 +82,7 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { _7 = copy _4 as *mut T (PtrToPtr); _8 = Offset(copy _7, copy _3); StorageDead(_7); - _9 = move _8 as *const T (PtrToPtr); + _9 = copy _8 as *const T (PtrToPtr); StorageDead(_8); goto -> bb3; } @@ -95,7 +95,7 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { bb3: { StorageLive(_10); _10 = copy _9; - _11 = std::slice::Iter::<'_, T> { ptr: copy _6, end_or_len: move _10, _marker: const ZeroSized: PhantomData<&T> }; + _11 = std::slice::Iter::<'_, T> { ptr: copy _6, end_or_len: copy _10, _marker: const ZeroSized: PhantomData<&T> }; StorageDead(_10); StorageDead(_9); StorageDead(_4); diff --git a/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-abort.mir index 216e05ec5b7..0d65640ec9b 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-abort.mir @@ -110,7 +110,7 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { _4 = &raw const (*_1); StorageLive(_5); _5 = copy _4 as *const T (PtrToPtr); - _6 = NonNull::<T> { pointer: move _5 }; + _6 = NonNull::<T> { pointer: copy _5 }; StorageDead(_5); StorageLive(_9); switchInt(const <T as std::mem::SizedTypeProperties>::IS_ZST) -> [0: bb1, otherwise: bb2]; @@ -122,7 +122,7 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { _7 = copy _4 as *mut T (PtrToPtr); _8 = Offset(copy _7, copy _3); StorageDead(_7); - _9 = move _8 as *const T (PtrToPtr); + _9 = copy _8 as *const T (PtrToPtr); StorageDead(_8); goto -> bb3; } @@ -164,7 +164,7 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { _16 = copy _13 as *mut T (Transmute); StorageLive(_17); _17 = copy _15 as *mut T (Transmute); - _18 = Eq(move _16, move _17); + _18 = Eq(copy _16, copy _17); StorageDead(_17); StorageDead(_16); switchInt(move _18) -> [0: bb6, otherwise: bb7]; @@ -176,9 +176,9 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { StorageLive(_20); StorageLive(_19); _19 = copy _13 as *const T (Transmute); - _20 = Offset(move _19, const 1_usize); + _20 = Offset(copy _19, const 1_usize); StorageDead(_19); - _21 = NonNull::<T> { pointer: move _20 }; + _21 = NonNull::<T> { pointer: copy _20 }; StorageDead(_20); _11 = move _21; StorageDead(_21); diff --git a/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-unwind.mir index 00102391980..02efb193474 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-unwind.mir @@ -110,7 +110,7 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { _4 = &raw const (*_1); StorageLive(_5); _5 = copy _4 as *const T (PtrToPtr); - _6 = NonNull::<T> { pointer: move _5 }; + _6 = NonNull::<T> { pointer: copy _5 }; StorageDead(_5); StorageLive(_9); switchInt(const <T as std::mem::SizedTypeProperties>::IS_ZST) -> [0: bb1, otherwise: bb2]; @@ -122,7 +122,7 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { _7 = copy _4 as *mut T (PtrToPtr); _8 = Offset(copy _7, copy _3); StorageDead(_7); - _9 = move _8 as *const T (PtrToPtr); + _9 = copy _8 as *const T (PtrToPtr); StorageDead(_8); goto -> bb3; } @@ -164,7 +164,7 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { _16 = copy _13 as *mut T (Transmute); StorageLive(_17); _17 = copy _15 as *mut T (Transmute); - _18 = Eq(move _16, move _17); + _18 = Eq(copy _16, copy _17); StorageDead(_17); StorageDead(_16); switchInt(move _18) -> [0: bb6, otherwise: bb7]; @@ -176,9 +176,9 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { StorageLive(_20); StorageLive(_19); _19 = copy _13 as *const T (Transmute); - _20 = Offset(move _19, const 1_usize); + _20 = Offset(copy _19, const 1_usize); StorageDead(_19); - _21 = NonNull::<T> { pointer: move _20 }; + _21 = NonNull::<T> { pointer: copy _20 }; StorageDead(_20); _11 = move _21; StorageDead(_21); diff --git a/tests/mir-opt/pre-codegen/slice_iter.reverse_loop.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_iter.reverse_loop.PreCodegen.after.panic-abort.mir index b09e3622344..ee638be7d7a 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.reverse_loop.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.reverse_loop.PreCodegen.after.panic-abort.mir @@ -70,7 +70,7 @@ fn reverse_loop(_1: &[T], _2: impl Fn(&T)) -> () { _4 = &raw const (*_1); StorageLive(_5); _5 = copy _4 as *const T (PtrToPtr); - _6 = NonNull::<T> { pointer: move _5 }; + _6 = NonNull::<T> { pointer: copy _5 }; StorageDead(_5); StorageLive(_9); switchInt(const <T as std::mem::SizedTypeProperties>::IS_ZST) -> [0: bb1, otherwise: bb2]; @@ -82,7 +82,7 @@ fn reverse_loop(_1: &[T], _2: impl Fn(&T)) -> () { _7 = copy _4 as *mut T (PtrToPtr); _8 = Offset(copy _7, copy _3); StorageDead(_7); - _9 = move _8 as *const T (PtrToPtr); + _9 = copy _8 as *const T (PtrToPtr); StorageDead(_8); goto -> bb3; } @@ -95,7 +95,7 @@ fn reverse_loop(_1: &[T], _2: impl Fn(&T)) -> () { bb3: { StorageLive(_10); _10 = copy _9; - _11 = std::slice::Iter::<'_, T> { ptr: copy _6, end_or_len: move _10, _marker: const ZeroSized: PhantomData<&T> }; + _11 = std::slice::Iter::<'_, T> { ptr: copy _6, end_or_len: copy _10, _marker: const ZeroSized: PhantomData<&T> }; StorageDead(_10); StorageDead(_9); StorageDead(_4); diff --git a/tests/mir-opt/pre-codegen/slice_iter.reverse_loop.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_iter.reverse_loop.PreCodegen.after.panic-unwind.mir index 12b54b57b84..aee29d4d4fe 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.reverse_loop.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.reverse_loop.PreCodegen.after.panic-unwind.mir @@ -70,7 +70,7 @@ fn reverse_loop(_1: &[T], _2: impl Fn(&T)) -> () { _4 = &raw const (*_1); StorageLive(_5); _5 = copy _4 as *const T (PtrToPtr); - _6 = NonNull::<T> { pointer: move _5 }; + _6 = NonNull::<T> { pointer: copy _5 }; StorageDead(_5); StorageLive(_9); switchInt(const <T as std::mem::SizedTypeProperties>::IS_ZST) -> [0: bb1, otherwise: bb2]; @@ -82,7 +82,7 @@ fn reverse_loop(_1: &[T], _2: impl Fn(&T)) -> () { _7 = copy _4 as *mut T (PtrToPtr); _8 = Offset(copy _7, copy _3); StorageDead(_7); - _9 = move _8 as *const T (PtrToPtr); + _9 = copy _8 as *const T (PtrToPtr); StorageDead(_8); goto -> bb3; } @@ -95,7 +95,7 @@ fn reverse_loop(_1: &[T], _2: impl Fn(&T)) -> () { bb3: { StorageLive(_10); _10 = copy _9; - _11 = std::slice::Iter::<'_, T> { ptr: copy _6, end_or_len: move _10, _marker: const ZeroSized: PhantomData<&T> }; + _11 = std::slice::Iter::<'_, T> { ptr: copy _6, end_or_len: copy _10, _marker: const ZeroSized: PhantomData<&T> }; StorageDead(_10); StorageDead(_9); StorageDead(_4); diff --git a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_generic_is_empty.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_generic_is_empty.PreCodegen.after.panic-abort.mir index 38d00cfbabd..9b510380b10 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_generic_is_empty.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_generic_is_empty.PreCodegen.after.panic-abort.mir @@ -39,7 +39,7 @@ fn slice_iter_generic_is_empty(_1: &std::slice::Iter<'_, T>) -> bool { bb1: { StorageLive(_2); _2 = copy ((*_1).1: *const T); - _3 = move _2 as std::ptr::NonNull<T> (Transmute); + _3 = copy _2 as std::ptr::NonNull<T> (Transmute); StorageDead(_2); StorageLive(_5); StorageLive(_4); @@ -48,7 +48,7 @@ fn slice_iter_generic_is_empty(_1: &std::slice::Iter<'_, T>) -> bool { StorageDead(_4); StorageLive(_6); _6 = copy _3 as *mut T (Transmute); - _0 = Eq(move _5, move _6); + _0 = Eq(copy _5, copy _6); StorageDead(_6); StorageDead(_5); goto -> bb3; diff --git a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_generic_is_empty.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_generic_is_empty.PreCodegen.after.panic-unwind.mir index 38d00cfbabd..9b510380b10 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_generic_is_empty.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_generic_is_empty.PreCodegen.after.panic-unwind.mir @@ -39,7 +39,7 @@ fn slice_iter_generic_is_empty(_1: &std::slice::Iter<'_, T>) -> bool { bb1: { StorageLive(_2); _2 = copy ((*_1).1: *const T); - _3 = move _2 as std::ptr::NonNull<T> (Transmute); + _3 = copy _2 as std::ptr::NonNull<T> (Transmute); StorageDead(_2); StorageLive(_5); StorageLive(_4); @@ -48,7 +48,7 @@ fn slice_iter_generic_is_empty(_1: &std::slice::Iter<'_, T>) -> bool { StorageDead(_4); StorageLive(_6); _6 = copy _3 as *mut T (Transmute); - _0 = Eq(move _5, move _6); + _0 = Eq(copy _5, copy _6); StorageDead(_6); StorageDead(_5); goto -> bb3; diff --git a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-abort.mir index c0ed0aea1e2..cc0fce26149 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-abort.mir @@ -72,7 +72,7 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { _5 = copy _2 as *mut T (Transmute); StorageLive(_6); _6 = copy _4 as *mut T (Transmute); - _7 = Eq(move _5, move _6); + _7 = Eq(copy _5, copy _6); StorageDead(_6); StorageDead(_5); switchInt(move _7) -> [0: bb2, otherwise: bb3]; @@ -84,9 +84,9 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { StorageLive(_9); StorageLive(_8); _8 = copy _2 as *const T (Transmute); - _9 = Offset(move _8, const 1_usize); + _9 = Offset(copy _8, const 1_usize); StorageDead(_8); - _10 = NonNull::<T> { pointer: move _9 }; + _10 = NonNull::<T> { pointer: copy _9 }; StorageDead(_9); ((*_1).0: std::ptr::NonNull<T>) = move _10; StorageDead(_10); diff --git a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-unwind.mir index c0ed0aea1e2..cc0fce26149 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-unwind.mir @@ -72,7 +72,7 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { _5 = copy _2 as *mut T (Transmute); StorageLive(_6); _6 = copy _4 as *mut T (Transmute); - _7 = Eq(move _5, move _6); + _7 = Eq(copy _5, copy _6); StorageDead(_6); StorageDead(_5); switchInt(move _7) -> [0: bb2, otherwise: bb3]; @@ -84,9 +84,9 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { StorageLive(_9); StorageLive(_8); _8 = copy _2 as *const T (Transmute); - _9 = Offset(move _8, const 1_usize); + _9 = Offset(copy _8, const 1_usize); StorageDead(_8); - _10 = NonNull::<T> { pointer: move _9 }; + _10 = NonNull::<T> { pointer: copy _9 }; StorageDead(_9); ((*_1).0: std::ptr::NonNull<T>) = move _10; StorageDead(_10); diff --git a/tests/mir-opt/reference_prop.debuginfo.ReferencePropagation.diff b/tests/mir-opt/reference_prop.debuginfo.ReferencePropagation.diff index 05ad9dbf3cc..3da795b61f9 100644 --- a/tests/mir-opt/reference_prop.debuginfo.ReferencePropagation.diff +++ b/tests/mir-opt/reference_prop.debuginfo.ReferencePropagation.diff @@ -99,7 +99,8 @@ _13 = &(*_26); StorageLive(_15); _15 = RangeFull; - _12 = <[i32; 10] as Index<RangeFull>>::index(move _13, move _15) -> [return: bb5, unwind continue]; +- _12 = <[i32; 10] as Index<RangeFull>>::index(move _13, move _15) -> [return: bb5, unwind continue]; ++ _12 = <[i32; 10] as Index<RangeFull>>::index(copy _13, move _15) -> [return: bb5, unwind continue]; } bb5: { diff --git a/tests/mir-opt/reference_prop.reference_propagation.ReferencePropagation.diff b/tests/mir-opt/reference_prop.reference_propagation.ReferencePropagation.diff index 3c6a9a9614c..0f90cc40a3d 100644 --- a/tests/mir-opt/reference_prop.reference_propagation.ReferencePropagation.diff +++ b/tests/mir-opt/reference_prop.reference_propagation.ReferencePropagation.diff @@ -218,8 +218,9 @@ - StorageLive(_14); - _14 = &_11; - _13 = &(*_14); +- _12 = move _13; + _13 = &_11; - _12 = move _13; ++ _12 = copy _13; StorageDead(_13); - StorageDead(_14); StorageLive(_15); @@ -252,7 +253,8 @@ StorageLive(_23); StorageLive(_24); _24 = copy _21; - _23 = opaque::<&&usize>(move _24) -> [return: bb3, unwind continue]; +- _23 = opaque::<&&usize>(move _24) -> [return: bb3, unwind continue]; ++ _23 = opaque::<&&usize>(copy _24) -> [return: bb3, unwind continue]; } bb3: { @@ -276,7 +278,8 @@ StorageLive(_30); StorageLive(_31); _31 = copy _28; - _30 = opaque::<*mut &usize>(move _31) -> [return: bb4, unwind continue]; +- _30 = opaque::<*mut &usize>(move _31) -> [return: bb4, unwind continue]; ++ _30 = opaque::<*mut &usize>(copy _31) -> [return: bb4, unwind continue]; } bb4: { @@ -299,7 +302,8 @@ StorageLive(_36); StorageLive(_37); _37 = copy _34; - _36 = opaque::<&usize>(move _37) -> [return: bb5, unwind continue]; +- _36 = opaque::<&usize>(move _37) -> [return: bb5, unwind continue]; ++ _36 = opaque::<&usize>(copy _37) -> [return: bb5, unwind continue]; } bb5: { @@ -328,7 +332,8 @@ StorageLive(_45); StorageLive(_46); _46 = copy _44; - _45 = opaque::<&usize>(move _46) -> [return: bb6, unwind continue]; +- _45 = opaque::<&usize>(move _46) -> [return: bb6, unwind continue]; ++ _45 = opaque::<&usize>(copy _46) -> [return: bb6, unwind continue]; } bb6: { @@ -368,8 +373,9 @@ - StorageLive(_55); - _55 = &(*_1); - _54 = &(*_55); +- _2 = move _54; + _54 = &(*_1); - _2 = move _54; ++ _2 = copy _54; StorageDead(_54); - StorageDead(_55); StorageLive(_56); diff --git a/tests/mir-opt/reference_prop.reference_propagation_const_ptr.ReferencePropagation.diff b/tests/mir-opt/reference_prop.reference_propagation_const_ptr.ReferencePropagation.diff index 75fe99de938..99ef07a212c 100644 --- a/tests/mir-opt/reference_prop.reference_propagation_const_ptr.ReferencePropagation.diff +++ b/tests/mir-opt/reference_prop.reference_propagation_const_ptr.ReferencePropagation.diff @@ -233,7 +233,8 @@ _12 = &raw const _10; StorageLive(_13); _13 = &raw const _11; - _12 = move _13; +- _12 = move _13; ++ _12 = copy _13; StorageDead(_13); StorageLive(_14); _14 = copy (*_12); @@ -265,7 +266,8 @@ StorageLive(_22); StorageLive(_23); _23 = copy _20; - _22 = opaque::<&*const usize>(move _23) -> [return: bb3, unwind continue]; +- _22 = opaque::<&*const usize>(move _23) -> [return: bb3, unwind continue]; ++ _22 = opaque::<&*const usize>(copy _23) -> [return: bb3, unwind continue]; } bb3: { @@ -289,7 +291,8 @@ StorageLive(_29); StorageLive(_30); _30 = copy _27; - _29 = opaque::<*mut *const usize>(move _30) -> [return: bb4, unwind continue]; +- _29 = opaque::<*mut *const usize>(move _30) -> [return: bb4, unwind continue]; ++ _29 = opaque::<*mut *const usize>(copy _30) -> [return: bb4, unwind continue]; } bb4: { @@ -312,7 +315,8 @@ StorageLive(_35); StorageLive(_36); _36 = copy _33; - _35 = opaque::<*const usize>(move _36) -> [return: bb5, unwind continue]; +- _35 = opaque::<*const usize>(move _36) -> [return: bb5, unwind continue]; ++ _35 = opaque::<*const usize>(copy _36) -> [return: bb5, unwind continue]; } bb5: { @@ -341,7 +345,8 @@ StorageLive(_44); StorageLive(_45); _45 = copy _43; - _44 = opaque::<*const usize>(move _45) -> [return: bb6, unwind continue]; +- _44 = opaque::<*const usize>(move _45) -> [return: bb6, unwind continue]; ++ _44 = opaque::<*const usize>(copy _45) -> [return: bb6, unwind continue]; } bb6: { @@ -379,7 +384,8 @@ _52 = &raw const (*_2); StorageLive(_53); _53 = &raw const (*_1); - _2 = move _53; +- _2 = move _53; ++ _2 = copy _53; StorageDead(_53); StorageLive(_54); _54 = copy (*_52); diff --git a/tests/mir-opt/reference_prop.reference_propagation_mut.ReferencePropagation.diff b/tests/mir-opt/reference_prop.reference_propagation_mut.ReferencePropagation.diff index f35b4974d6e..e2fab8a5f2e 100644 --- a/tests/mir-opt/reference_prop.reference_propagation_mut.ReferencePropagation.diff +++ b/tests/mir-opt/reference_prop.reference_propagation_mut.ReferencePropagation.diff @@ -218,8 +218,9 @@ - StorageLive(_14); - _14 = &mut _11; - _13 = &mut (*_14); +- _12 = move _13; + _13 = &mut _11; - _12 = move _13; ++ _12 = copy _13; StorageDead(_13); - StorageDead(_14); StorageLive(_15); @@ -251,7 +252,8 @@ StorageLive(_23); StorageLive(_24); _24 = copy _21; - _23 = opaque::<&&mut usize>(move _24) -> [return: bb3, unwind continue]; +- _23 = opaque::<&&mut usize>(move _24) -> [return: bb3, unwind continue]; ++ _23 = opaque::<&&mut usize>(copy _24) -> [return: bb3, unwind continue]; } bb3: { @@ -275,7 +277,8 @@ StorageLive(_30); StorageLive(_31); _31 = copy _28; - _30 = opaque::<*mut &mut usize>(move _31) -> [return: bb4, unwind continue]; +- _30 = opaque::<*mut &mut usize>(move _31) -> [return: bb4, unwind continue]; ++ _30 = opaque::<*mut &mut usize>(copy _31) -> [return: bb4, unwind continue]; } bb4: { @@ -296,8 +299,10 @@ _35 = copy (*_34); StorageLive(_36); StorageLive(_37); - _37 = move _34; - _36 = opaque::<&mut usize>(move _37) -> [return: bb5, unwind continue]; +- _37 = move _34; +- _36 = opaque::<&mut usize>(move _37) -> [return: bb5, unwind continue]; ++ _37 = copy _34; ++ _36 = opaque::<&mut usize>(copy _37) -> [return: bb5, unwind continue]; } bb5: { @@ -316,15 +321,19 @@ StorageLive(_41); _41 = copy (*_40); StorageLive(_42); - _42 = move _40; +- _42 = move _40; ++ _42 = copy _40; StorageLive(_43); _43 = copy (*_42); StorageLive(_44); - _44 = move _42; +- _44 = move _42; ++ _44 = copy _42; StorageLive(_45); StorageLive(_46); - _46 = move _44; - _45 = opaque::<&mut usize>(move _46) -> [return: bb6, unwind continue]; +- _46 = move _44; +- _45 = opaque::<&mut usize>(move _46) -> [return: bb6, unwind continue]; ++ _46 = copy _44; ++ _45 = opaque::<&mut usize>(copy _46) -> [return: bb6, unwind continue]; } bb6: { @@ -364,8 +373,9 @@ - StorageLive(_55); - _55 = &mut (*_1); - _54 = &mut (*_55); +- _2 = move _54; + _54 = &mut (*_1); - _2 = move _54; ++ _2 = copy _54; StorageDead(_54); - StorageDead(_55); StorageLive(_56); diff --git a/tests/mir-opt/reference_prop.reference_propagation_mut_ptr.ReferencePropagation.diff b/tests/mir-opt/reference_prop.reference_propagation_mut_ptr.ReferencePropagation.diff index 21b322b7218..c49254ee6c6 100644 --- a/tests/mir-opt/reference_prop.reference_propagation_mut_ptr.ReferencePropagation.diff +++ b/tests/mir-opt/reference_prop.reference_propagation_mut_ptr.ReferencePropagation.diff @@ -214,7 +214,8 @@ _12 = &raw mut _10; StorageLive(_13); _13 = &raw mut _11; - _12 = move _13; +- _12 = move _13; ++ _12 = copy _13; StorageDead(_13); StorageLive(_14); _14 = copy (*_12); @@ -245,7 +246,8 @@ StorageLive(_22); StorageLive(_23); _23 = copy _20; - _22 = opaque::<&*mut usize>(move _23) -> [return: bb3, unwind continue]; +- _22 = opaque::<&*mut usize>(move _23) -> [return: bb3, unwind continue]; ++ _22 = opaque::<&*mut usize>(copy _23) -> [return: bb3, unwind continue]; } bb3: { @@ -269,7 +271,8 @@ StorageLive(_29); StorageLive(_30); _30 = copy _27; - _29 = opaque::<*mut *mut usize>(move _30) -> [return: bb4, unwind continue]; +- _29 = opaque::<*mut *mut usize>(move _30) -> [return: bb4, unwind continue]; ++ _29 = opaque::<*mut *mut usize>(copy _30) -> [return: bb4, unwind continue]; } bb4: { @@ -291,7 +294,8 @@ StorageLive(_35); StorageLive(_36); _36 = copy _33; - _35 = opaque::<*mut usize>(move _36) -> [return: bb5, unwind continue]; +- _35 = opaque::<*mut usize>(move _36) -> [return: bb5, unwind continue]; ++ _35 = opaque::<*mut usize>(copy _36) -> [return: bb5, unwind continue]; } bb5: { @@ -318,7 +322,8 @@ StorageLive(_44); StorageLive(_45); _45 = copy _43; - _44 = opaque::<*mut usize>(move _45) -> [return: bb6, unwind continue]; +- _44 = opaque::<*mut usize>(move _45) -> [return: bb6, unwind continue]; ++ _44 = opaque::<*mut usize>(copy _45) -> [return: bb6, unwind continue]; } bb6: { @@ -356,7 +361,8 @@ _52 = &raw mut (*_2); StorageLive(_53); _53 = &raw mut (*_1); - _2 = move _53; +- _2 = move _53; ++ _2 = copy _53; StorageDead(_53); StorageLive(_54); _54 = copy (*_52); diff --git a/tests/mir-opt/reference_prop.rs b/tests/mir-opt/reference_prop.rs index 00d48938071..c4b63b6313c 100644 --- a/tests/mir-opt/reference_prop.rs +++ b/tests/mir-opt/reference_prop.rs @@ -30,7 +30,7 @@ fn reference_propagation<'a, T: Copy>(single: &'a T, mut multiple: &'a T) { // CHECK: [[a2:_.*]] = const 7_usize; // CHECK: [[b:_.*]] = &[[a]]; // CHECK: [[btmp:_.*]] = &[[a2]]; - // CHECK: [[b]] = move [[btmp]]; + // CHECK: [[b]] = copy [[btmp]]; // CHECK: [[c:_.*]] = copy (*[[b]]); let a = 5_usize; @@ -122,7 +122,7 @@ fn reference_propagation<'a, T: Copy>(single: &'a T, mut multiple: &'a T) { // CHECK: bb7: { // CHECK: [[a:_.*]] = &(*_2); // CHECK: [[tmp:_.*]] = &(*_1); - // CHECK: _2 = move [[tmp]]; + // CHECK: _2 = copy [[tmp]]; // CHECK: [[b:_.*]] = copy (*[[a]]); let a = &*multiple; @@ -186,7 +186,7 @@ fn reference_propagation_mut<'a, T: Copy>(single: &'a mut T, mut multiple: &'a m // CHECK: [[a2:_.*]] = const 7_usize; // CHECK: [[b:_.*]] = &mut [[a]]; // CHECK: [[btmp:_.*]] = &mut [[a2]]; - // CHECK: [[b]] = move [[btmp]]; + // CHECK: [[b]] = copy [[btmp]]; // CHECK: [[c:_.*]] = copy (*[[b]]); let mut a = 5_usize; @@ -247,9 +247,9 @@ fn reference_propagation_mut<'a, T: Copy>(single: &'a mut T, mut multiple: &'a m // CHECK: [[a:_.*]] = const 7_usize; // CHECK: [[b1:_.*]] = &mut [[a]]; // CHECK: [[c:_.*]] = copy (*[[b1]]); - // CHECK: [[b2:_.*]] = move [[b1]]; + // CHECK: [[b2:_.*]] = copy [[b1]]; // CHECK: [[c2:_.*]] = copy (*[[b2]]); - // CHECK: [[b3:_.*]] = move [[b2]]; + // CHECK: [[b3:_.*]] = copy [[b2]]; let mut a = 7_usize; let b1 = &mut a; @@ -278,7 +278,7 @@ fn reference_propagation_mut<'a, T: Copy>(single: &'a mut T, mut multiple: &'a m // CHECK: bb7: { // CHECK: [[a:_.*]] = &mut (*_2); // CHECK: [[tmp:_.*]] = &mut (*_1); - // CHECK: _2 = move [[tmp]]; + // CHECK: _2 = copy [[tmp]]; // CHECK: [[b:_.*]] = copy (*[[a]]); let a = &mut *multiple; @@ -343,7 +343,7 @@ fn reference_propagation_const_ptr<T: Copy>(single: *const T, mut multiple: *con // CHECK: [[a2:_.*]] = const 7_usize; // CHECK: [[b:_.*]] = &raw const [[a]]; // CHECK: [[btmp:_.*]] = &raw const [[a2]]; - // CHECK: [[b]] = move [[btmp]]; + // CHECK: [[b]] = copy [[btmp]]; // CHECK: [[c:_.*]] = copy (*[[b]]); let a = 5_usize; @@ -435,7 +435,7 @@ fn reference_propagation_const_ptr<T: Copy>(single: *const T, mut multiple: *con // CHECK: bb7: { // CHECK: [[a:_.*]] = &raw const (*_2); // CHECK: [[tmp:_.*]] = &raw const (*_1); - // CHECK: _2 = move [[tmp]]; + // CHECK: _2 = copy [[tmp]]; // CHECK: [[b:_.*]] = copy (*[[a]]); let a = &raw const *multiple; @@ -514,7 +514,7 @@ fn reference_propagation_mut_ptr<T: Copy>(single: *mut T, mut multiple: *mut T) // CHECK: [[a2:_.*]] = const 7_usize; // CHECK: [[b:_.*]] = &raw mut [[a]]; // CHECK: [[btmp:_.*]] = &raw mut [[a2]]; - // CHECK: [[b]] = move [[btmp]]; + // CHECK: [[b]] = copy [[btmp]]; // CHECK: [[c:_.*]] = copy (*[[b]]); let mut a = 5_usize; @@ -606,7 +606,7 @@ fn reference_propagation_mut_ptr<T: Copy>(single: *mut T, mut multiple: *mut T) // CHECK: bb7: { // CHECK: [[a:_.*]] = &raw mut (*_2); // CHECK: [[tmp:_.*]] = &raw mut (*_1); - // CHECK: _2 = move [[tmp]]; + // CHECK: _2 = copy [[tmp]]; // CHECK: [[b:_.*]] = copy (*[[a]]); let a = &raw mut *multiple; diff --git a/tests/mir-opt/reference_prop_do_not_reuse_move.rs b/tests/mir-opt/reference_prop_do_not_reuse_move.rs new file mode 100644 index 00000000000..8859d30aed1 --- /dev/null +++ b/tests/mir-opt/reference_prop_do_not_reuse_move.rs @@ -0,0 +1,44 @@ +//@ test-mir-pass: ReferencePropagation + +#![feature(custom_mir, core_intrinsics)] +#![allow(internal_features)] +#![crate_type = "lib"] + +use std::intrinsics::mir::*; + +#[inline(never)] +fn opaque(_: impl Sized, _: impl Sized) {} + +#[custom_mir(dialect = "runtime")] +pub fn fn0() { + // CHECK-LABEL: fn0 + // CHECK: _9 = opaque::<&u8, &u64>(copy (_2.1: &u8), copy _6) -> [return: bb1, unwind unreachable]; + mir! { + let _1: (u8, u8); + let _2: (u64, &u8); + let _3: (u8, &&u64); + let _4: u64; + let _5: &u64; + let _6: &u64; + let _7: &u64; + let _8: u64; + let n: (); + { + _3.0 = 0; + _1 = (0, _3.0); + _4 = 0; + _2.1 = &_1.0; + _8 = 0; + _5 = &_8; + _5 = &_4; + _6 = _5; + _7 = _6; + _3.1 = &_6; + Call(n = opaque(_2.1, Move(_6)), ReturnTo(bb1), UnwindUnreachable()) + } + bb1 = { + _2.0 = *_7; + Return() + } + } +} diff --git a/tests/mir-opt/uninhabited_not_read.main.SimplifyLocals-final.after.mir b/tests/mir-opt/uninhabited_not_read.main.SimplifyLocals-final.after.mir index 6bf4be652be..89f4cbc2ede 100644 --- a/tests/mir-opt/uninhabited_not_read.main.SimplifyLocals-final.after.mir +++ b/tests/mir-opt/uninhabited_not_read.main.SimplifyLocals-final.after.mir @@ -31,7 +31,7 @@ fn main() -> () { StorageLive(_2); StorageLive(_3); _3 = &raw const _1; - _2 = move _3 as *const ! (PtrToPtr); + _2 = copy _3 as *const ! (PtrToPtr); StorageDead(_3); StorageDead(_2); StorageDead(_1); @@ -40,7 +40,7 @@ fn main() -> () { StorageLive(_5); StorageLive(_6); _6 = &raw const _4; - _5 = move _6 as *const ! (PtrToPtr); + _5 = copy _6 as *const ! (PtrToPtr); StorageDead(_6); StorageDead(_5); StorageDead(_4); diff --git a/tests/run-make/rustdoc-default-output/output-default.stdout b/tests/run-make/rustdoc-default-output/output-default.stdout index 506f135ff8e..badbc0b6d15 100644 --- a/tests/run-make/rustdoc-default-output/output-default.stdout +++ b/tests/run-make/rustdoc-default-output/output-default.stdout @@ -194,6 +194,9 @@ Options: --disable-minification disable the minification of CSS/JS files (perma-unstable, do not use with cached files) + --generate-macro-expansion + Add possibility to expand macros in the HTML source + code pages --plugin-path DIR removed, see issue #44136 <https://github.com/rust-lang/rust/issues/44136> for diff --git a/tests/rustdoc-gui/macro-expansion.goml b/tests/rustdoc-gui/macro-expansion.goml new file mode 100644 index 00000000000..b87d0e4870a --- /dev/null +++ b/tests/rustdoc-gui/macro-expansion.goml @@ -0,0 +1,126 @@ +// This test ensures that the macro expansion is generated and working as expected. +go-to: "file://" + |DOC_PATH| + "/src/macro_expansion/lib.rs.html" + +define-function: ( + "check-expansion", + [line, original_content], + block { + assert-text: ("a[id='" + |line| + "'] + .expansion .original", |original_content|) + // The "original" content should be expanded. + assert-css: ("a[id='" + |line| + "'] + .expansion .original", {"display": "inline"}) + // The expanded macro should be hidden. + assert-css: ("a[id='" + |line| + "'] + .expansion .expanded", {"display": "none"}) + + // We "expand" the macro. + click: "a[id='" + |line| + "'] + .expansion input[type=checkbox]" + // The "original" content is hidden. + assert-css: ("a[id='" + |line| + "'] + .expansion .original", {"display": "none"}) + // The expanded macro is visible. + assert-css: ("a[id='" + |line| + "'] + .expansion .expanded", {"display": "inline"}) + + // We collapse the macro. + click: "a[id='" + |line| + "'] + .expansion input[type=checkbox]" + // The "original" content is expanded. + assert-css: ("a[id='" + |line| + "'] + .expansion .original", {"display": "inline"}) + // The expanded macro is hidden. + assert-css: ("a[id='" + |line| + "'] + .expansion .expanded", {"display": "none"}) + } +) + +// First we check the derive macro expansion at line 33. +call-function: ("check-expansion", {"line": 35, "original_content": "Debug"}) +// Then we check the `bar` macro expansion at line 41. +call-function: ("check-expansion", {"line": 43, "original_content": "bar!(y)"}) +// Then we check the `println` macro expansion at line 42-44. +call-function: ("check-expansion", {"line": 44, "original_content": 'println!(" +45 {y} +46 ")'}) + +// Then finally we check when there are two macro calls on a same line. +assert-count: ("#expand-52 ~ .original", 2) +assert-count: ("#expand-52 ~ .expanded", 2) + +store-value: (repeat_o, '/following-sibling::*[@class="original"]') +store-value: (repeat_e, '/following-sibling::*[@class="expanded"]') +store-value: (expand_id, "expand-52") +assert-text: ('//*[@id="' + |expand_id| + '"]' + |repeat_o|, "stringify!(foo)") +assert-text: ('//*[@id="' + |expand_id| + '"]' + |repeat_o| + |repeat_o|, "stringify!(bar)") +assert-text: ('//*[@id="' + |expand_id| + '"]' + |repeat_e|, '"foo"') +assert-text: ('//*[@id="' + |expand_id| + '"]' + |repeat_e| + |repeat_e|, '"bar"') + +// The "original" content should be expanded. +assert-css: ('//*[@id="' + |expand_id| + '"]' + |repeat_o|, {"display": "inline"}) +assert-css: ('//*[@id="' + |expand_id| + '"]' + |repeat_o| + |repeat_o|, {"display": "inline"}) +// The expanded macro should be hidden. +assert-css: ('//*[@id="' + |expand_id| + '"]' + |repeat_e|, {"display": "none"}) +assert-css: ('//*[@id="' + |expand_id| + '"]' + |repeat_e| + |repeat_e|, {"display": "none"}) + +// We "expand" the macro (because the line starts with a string, the label is not at the "top +// level" of the `<code>`, so we need to use a different selector). +click: "#" + |expand_id| +// The "original" content is hidden. +assert-css: ('//*[@id="' + |expand_id| + '"]' + |repeat_o|, {"display": "none"}) +assert-css: ('//*[@id="' + |expand_id| + '"]' + |repeat_o| + |repeat_o|, {"display": "none"}) +// The expanded macro is visible. +assert-css: ('//*[@id="' + |expand_id| + '"]' + |repeat_e|, {"display": "inline"}) +assert-css: ('//*[@id="' + |expand_id| + '"]' + |repeat_e| + |repeat_e|, {"display": "inline"}) + +// We collapse the macro. +click: "#" + |expand_id| +// The "original" content is expanded. +assert-css: ('//*[@id="' + |expand_id| + '"]' + |repeat_o|, {"display": "inline"}) +assert-css: ('//*[@id="' + |expand_id| + '"]' + |repeat_o| + |repeat_o|, {"display": "inline"}) +// The expanded macro is hidden. +assert-css: ('//*[@id="' + |expand_id| + '"]' + |repeat_e|, {"display": "none"}) +assert-css: ('//*[@id="' + |expand_id| + '"]' + |repeat_e| + |repeat_e|, {"display": "none"}) + +// Checking the line 48 `println` which needs to be handled differently because the line number is +// inside a "comment" span. +store-value: (expand_id, "expand-48") +assert-text: ("#" + |expand_id| + " ~ .original", 'println!(" +49 {y} +50 ")') +// The "original" content should be expanded. +assert-css: ("#" + |expand_id| + " ~ .original", {"display": "inline"}) +// The expanded macro should be hidden. +assert-css: ("#" + |expand_id| + " ~ .expanded", {"display": "none"}) + +// We "expand" the macro. +click: "#" + |expand_id| +// The "original" content is hidden. +assert-css: ("#" + |expand_id| + " ~ .original", {"display": "none"}) +// The expanded macro is visible. +assert-css: ("#" + |expand_id| + " ~ .expanded", {"display": "inline"}) + +// We collapse the macro. +click: "#" + |expand_id| +// The "original" content is expanded. +assert-css: ("#" + |expand_id| + " ~ .original", {"display": "inline"}) +// The expanded macro is hidden. +assert-css: ("#" + |expand_id| + " ~ .expanded", {"display": "none"}) + +// Ensure that the toggles are focusable and can be interacted with keyboard. +focus: "//a[@id='29']" +press-key: "Tab" +store-value: (expand_id, "expand-29") +assert: "#" + |expand_id| + ":focus" +assert-css: ("#" + |expand_id| +" ~ .expanded", {"display": "none"}) +assert-css: ("#" + |expand_id| +" ~ .original", {"display": "inline"}) +// We now expand the macro. +press-key: "Space" +assert-css: ("#" + |expand_id| + " ~ .expanded", {"display": "inline"}) +assert-css: ("#" + |expand_id| + " ~ .original", {"display": "none"}) +// We collapse the macro. +press-key: "Space" +assert-css: ("#" + |expand_id| + " ~ .expanded", {"display": "none"}) +assert-css: ("#" + |expand_id| + " ~ .original", {"display": "inline"}) + +// Now we check a macro coming from another file. +store-value: (expand_id, "expand-55") +// We "expand" the macro. +click: "#" + |expand_id| +// The "original" content is hidden. +assert-css: ("#" + |expand_id| + " ~ .original", {"display": "none"}) +// The expanded macro is visible. +assert-css: ("#" + |expand_id| + " ~ .expanded", {"display": "inline"}) +assert-text: ("#" + |expand_id| + " ~ .expanded", "{ y += 2; };") diff --git a/tests/rustdoc-gui/sidebar-source-code.goml b/tests/rustdoc-gui/sidebar-source-code.goml index 0ac88612cef..3f6914a89d6 100644 --- a/tests/rustdoc-gui/sidebar-source-code.goml +++ b/tests/rustdoc-gui/sidebar-source-code.goml @@ -71,7 +71,7 @@ assert: "//*[@class='dir-entry' and @open]/*[normalize-space()='sub_mod']" // Only "another_folder" should be "open" in "lib2". assert: "//*[@class='dir-entry' and not(@open)]/*[normalize-space()='another_mod']" // All other trees should be collapsed. -assert-count: ("//*[@id='src-sidebar']/details[not(normalize-space()='lib2') and not(@open)]", 11) +assert-count: ("//*[@id='src-sidebar']/details[not(normalize-space()='lib2') and not(@open)]", 12) // We now switch to mobile mode. set-window-size: (600, 600) diff --git a/tests/rustdoc-gui/src/macro_expansion/Cargo.lock b/tests/rustdoc-gui/src/macro_expansion/Cargo.lock new file mode 100644 index 00000000000..9c5cee8fb9d --- /dev/null +++ b/tests/rustdoc-gui/src/macro_expansion/Cargo.lock @@ -0,0 +1,7 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +version = 4 + +[[package]] +name = "macro_expansion" +version = "0.1.0" diff --git a/tests/rustdoc-gui/src/macro_expansion/Cargo.toml b/tests/rustdoc-gui/src/macro_expansion/Cargo.toml new file mode 100644 index 00000000000..6d362850fc5 --- /dev/null +++ b/tests/rustdoc-gui/src/macro_expansion/Cargo.toml @@ -0,0 +1,7 @@ +[package] +name = "macro_expansion" +version = "0.1.0" +edition = "2021" + +[lib] +path = "lib.rs" diff --git a/tests/rustdoc-gui/src/macro_expansion/lib.rs b/tests/rustdoc-gui/src/macro_expansion/lib.rs new file mode 100644 index 00000000000..62a92d5d15e --- /dev/null +++ b/tests/rustdoc-gui/src/macro_expansion/lib.rs @@ -0,0 +1,56 @@ +// Test crate used to check the `--generate-macro-expansion` option. +//@ compile-flags: -Zunstable-options --generate-macro-expansion --generate-link-to-definition + +mod other; + +#[macro_export] +macro_rules! bar { + ($x:ident) => {{ + $x += 2; + $x *= 2; + }} +} + +macro_rules! bar2 { + () => { + fn foo2() -> impl std::fmt::Display { + String::new() + } + } +} + +macro_rules! bar3 { + () => { + fn foo3() {} + fn foo4() -> String { String::new() } + } +} + +bar2!(); +bar3!(); + +#[derive(Debug, PartialEq)] +pub struct Bar; + +#[derive(Debug +)] +pub struct Bar2; + +fn y_f(_: &str, _: &str, _: &str) {} + +fn foo() { + let mut y = 0; + bar!(y); + println!(" + {y} + "); + // comment + println!(" + {y} + "); + let s = y_f("\ +bla", stringify!(foo), stringify!(bar)); + + // Macro from another file. + other_macro!(y); +} diff --git a/tests/rustdoc-gui/src/macro_expansion/other.rs b/tests/rustdoc-gui/src/macro_expansion/other.rs new file mode 100644 index 00000000000..8661b01be38 --- /dev/null +++ b/tests/rustdoc-gui/src/macro_expansion/other.rs @@ -0,0 +1,6 @@ +#[macro_export] +macro_rules! other_macro { + ($x:ident) => {{ + $x += 2; + }} +} diff --git a/tests/rustdoc-gui/utils.goml b/tests/rustdoc-gui/utils.goml index 10439309402..e13aef6712f 100644 --- a/tests/rustdoc-gui/utils.goml +++ b/tests/rustdoc-gui/utils.goml @@ -39,6 +39,13 @@ define-function: ( "perform-search", [query], block { + // Block requests with doubled `//`. + // Amazon S3 doesn't support them, but other web hosts do, + // and so do file:/// URLs, which means we need to block + // it here if we want to avoid breaking the main docs site. + // https://github.com/rust-lang/rust/issues/145646 + block-network-request: "file://*//*" + // Perform search click: "#search-button" wait-for: ".search-input" write-into: (".search-input", |query|) diff --git a/tests/rustdoc-js-std/parser-errors.js b/tests/rustdoc-js-std/parser-errors.js index 49150cbd570..6e11dda8532 100644 --- a/tests/rustdoc-js-std/parser-errors.js +++ b/tests/rustdoc-js-std/parser-errors.js @@ -16,14 +16,6 @@ const PARSED = [ error: "Found generics without a path", }, { - query: '-> *', - elems: [], - foundElems: 0, - userQuery: "-> *", - returned: [], - error: "Unexpected `*` after ` ` (not a valid identifier)", - }, - { query: 'a<"P">', elems: [], foundElems: 0, diff --git a/tests/rustdoc-js/pointer.js b/tests/rustdoc-js/pointer.js new file mode 100644 index 00000000000..b2b556858fd --- /dev/null +++ b/tests/rustdoc-js/pointer.js @@ -0,0 +1,240 @@ +// exact-check + +const EXPECTED = [ + // pinkie with explicit names + { + 'query': 'usize, usize -> ()', + 'others': [ + { 'path': 'pointer', 'name': 'pinky' }, + ], + }, + { + 'query': 'pointer<usize>, usize -> ()', + 'others': [ + { 'path': 'pointer', 'name': 'pinky' }, + ], + }, + { + 'query': 'pointer<usize>, pointer<usize> -> ()', + 'others': [], + }, + { + 'query': 'pointer<mut, usize>, usize -> ()', + 'others': [], + }, + // thumb with explicit names + { + 'query': 'thumb, thumb -> ()', + 'others': [ + { 'path': 'pointer::Thumb', 'name': 'up' }, + ], + }, + { + 'query': 'pointer<thumb>, thumb -> ()', + 'others': [ + { 'path': 'pointer::Thumb', 'name': 'up' }, + ], + }, + { + 'query': 'pointer<thumb>, pointer<thumb> -> ()', + 'others': [], + }, + { + 'query': 'pointer<mut, thumb>, thumb -> ()', + 'others': [], + }, + // index with explicit names + { + 'query': 'index, index -> ()', + 'others': [ + { 'path': 'pointer::Index', 'name': 'point' }, + ], + }, + { + 'query': 'pointer<index>, index -> ()', + 'others': [ + { 'path': 'pointer::Index', 'name': 'point' }, + ], + }, + { + 'query': 'pointer<index>, pointer<index> -> ()', + 'others': [], + }, + { + 'query': 'pointer<mut, index>, index -> ()', + 'others': [], + }, + // ring with explicit names + { + 'query': 'ring, ring -> ()', + 'others': [ + { 'path': 'pointer::Ring', 'name': 'wear' }, + ], + }, + { + 'query': 'pointer<ring>, ring -> ()', + 'others': [ + { 'path': 'pointer::Ring', 'name': 'wear' }, + ], + }, + { + 'query': 'pointer<ring>, pointer<ring> -> ()', + // can't leave out the `mut`, because can't reorder like that + 'others': [], + }, + { + 'query': 'pointer<mut, ring>, pointer<ring> -> ()', + 'others': [ + { 'path': 'pointer::Ring', 'name': 'wear' }, + ], + }, + { + 'query': 'pointer<mut, ring>, pointer<mut, ring> -> ()', + 'others': [], + }, + // middle with explicit names + { + 'query': 'middle, middle -> ()', + 'others': [ + { 'path': 'pointer', 'name': 'show' }, + ], + }, + { + 'query': 'pointer<middle>, pointer<middle> -> ()', + // can't leave out the mut + 'others': [], + }, + { + 'query': 'pointer<mut, middle>, pointer<mut, middle> -> ()', + 'others': [ + { 'path': 'pointer', 'name': 'show' }, + ], + }, + { + 'query': 'pointer<pointer<mut, middle>>, pointer<mut, pointer<middle>> -> ()', + 'others': [ + { 'path': 'pointer', 'name': 'show' }, + ], + }, + { + 'query': 'pointer<mut, pointer<middle>>, pointer<pointer<mut, middle>> -> ()', + 'others': [ + { 'path': 'pointer', 'name': 'show' }, + ], + }, + { + 'query': 'pointer<pointer<mut, middle>>, pointer<pointer<mut, middle>> -> ()', + 'others': [], + }, + { + 'query': 'pointer<mut, pointer<middle>>, pointer<mut, pointer<middle>> -> ()', + 'others': [], + }, + // pinkie with shorthand + { + 'query': '*const usize, usize -> ()', + 'others': [ + { 'path': 'pointer', 'name': 'pinky' }, + ], + }, + // you can omit the `const`, if you want. + { + 'query': '*usize, usize -> ()', + 'others': [ + { 'path': 'pointer', 'name': 'pinky' }, + ], + }, + { + 'query': '*const usize, *const usize -> ()', + 'others': [], + }, + { + 'query': '*mut usize, usize -> ()', + 'others': [], + }, + // thumb with shorthand + { + 'query': '*const thumb, thumb -> ()', + 'others': [ + { 'path': 'pointer::Thumb', 'name': 'up' }, + ], + }, + { + 'query': '*const thumb, *const thumb -> ()', + 'others': [], + }, + { + 'query': '*mut thumb, thumb -> ()', + 'others': [], + }, + // index with explicit names + { + 'query': '*const index, index -> ()', + 'others': [ + { 'path': 'pointer::Index', 'name': 'point' }, + ], + }, + { + 'query': '*const index, *const index -> ()', + 'others': [], + }, + { + 'query': '*mut index, index -> ()', + 'others': [], + }, + // ring with shorthand + { + 'query': '*const ring, ring -> ()', + 'others': [ + { 'path': 'pointer::Ring', 'name': 'wear' }, + ], + }, + { + 'query': '*const ring, ring -> ()', + 'others': [ + { 'path': 'pointer::Ring', 'name': 'wear' }, + ], + }, + { + 'query': '*mut ring, *const ring -> ()', + 'others': [ + { 'path': 'pointer::Ring', 'name': 'wear' }, + ], + }, + { + 'query': '*mut ring, *mut ring -> ()', + 'others': [], + }, + // middle with shorthand + { + 'query': '*const middle, *const middle -> ()', + // can't leave out the mut + 'others': [], + }, + { + 'query': '*mut middle, *mut middle -> ()', + 'others': [ + { 'path': 'pointer', 'name': 'show' }, + ], + }, + { + 'query': '*const *mut middle, *mut *const middle -> ()', + 'others': [ + { 'path': 'pointer', 'name': 'show' }, + ], + }, + { + 'query': '*mut *const middle, *const *mut middle -> ()', + 'others': [ + { 'path': 'pointer', 'name': 'show' }, + ], + }, + { + 'query': '*const *mut middle, *const *mut middle -> ()', + 'others': [], + }, + { + 'query': '*mut *const middle, *mut *const middle -> ()', + 'others': [], + }, +]; diff --git a/tests/rustdoc-js/pointer.rs b/tests/rustdoc-js/pointer.rs new file mode 100644 index 00000000000..8375a174303 --- /dev/null +++ b/tests/rustdoc-js/pointer.rs @@ -0,0 +1,40 @@ +#![feature(extern_types)] + +pub fn pinky(input: *const usize, manage: usize) { + unimplemented!() +} + +pub struct Thumb; + +impl Thumb { + pub fn up(this: *const Self, finger: Thumb) { + unimplemented!() + } +} + +pub enum Index {} + +impl Index { + pub fn point(self, data: *const Index) { + unimplemented!() + } +} + +pub union Ring { + magic: u32, + marriage: f32, +} + +impl Ring { + pub fn wear(this: *mut Self, extra: *const Ring) { + unimplemented!() + } +} + +extern "C" { + pub type Middle; +} + +pub fn show(left: *const *mut Middle, right: *mut *const Middle) { + unimplemented!() +} diff --git a/tests/rustdoc-ui/issues/issue-79494.rs b/tests/rustdoc-ui/issues/issue-79494.rs index 28ef82dac0f..737c00a0269 100644 --- a/tests/rustdoc-ui/issues/issue-79494.rs +++ b/tests/rustdoc-ui/issues/issue-79494.rs @@ -1,5 +1,6 @@ -//@ only-x86_64-unknown-linux-gnu +//@ only-64bit #![feature(const_transmute)] -pub const ZST: &[u8] = unsafe { std::mem::transmute(1usize) }; //~ ERROR cannot transmute between types of different sizes, or dependently-sized types +pub const ZST: &[u8] = unsafe { std::mem::transmute(1usize) }; +//~^ ERROR transmuting from 8-byte type to 16-byte type diff --git a/tests/rustdoc-ui/issues/issue-79494.stderr b/tests/rustdoc-ui/issues/issue-79494.stderr index 20e568d8eab..fa797bfd50a 100644 --- a/tests/rustdoc-ui/issues/issue-79494.stderr +++ b/tests/rustdoc-ui/issues/issue-79494.stderr @@ -1,12 +1,9 @@ -error[E0512]: cannot transmute between types of different sizes, or dependently-sized types +error[E0080]: transmuting from 8-byte type to 16-byte type: `usize` -> `&[u8]` --> $DIR/issue-79494.rs:5:33 | LL | pub const ZST: &[u8] = unsafe { std::mem::transmute(1usize) }; - | ^^^^^^^^^^^^^^^^^^^ - | - = note: source type: `usize` (64 bits) - = note: target type: `&[u8]` (128 bits) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `ZST` failed here error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0512`. +For more information about this error, try `rustc --explain E0080`. diff --git a/tests/rustdoc-ui/lints/invalid-html-tags.rs b/tests/rustdoc-ui/lints/invalid-html-tags.rs index 317f1fd1d46..8003e5efdd5 100644 --- a/tests/rustdoc-ui/lints/invalid-html-tags.rs +++ b/tests/rustdoc-ui/lints/invalid-html-tags.rs @@ -43,7 +43,7 @@ pub fn b() {} /// <h3> //~^ ERROR unclosed HTML tag `h3` /// <script -//~^ ERROR unclosed HTML tag `script` +//~^ ERROR incomplete HTML tag `script` pub fn c() {} // Unclosed tags shouldn't warn if they are nested inside a <script> elem. @@ -72,6 +72,7 @@ pub fn e() {} /// <div></div > /// <div></div //~^ ERROR unclosed HTML tag `div` +//~| ERROR incomplete HTML tag `div` pub fn f() {} /// <!----> @@ -105,7 +106,7 @@ pub fn j() {} /// uiapp.run(&env::args().collect::<Vec<_>>()); /// ``` /// -/// <Vec<_> shouldn't warn! +// <Vec<_> shouldn't warn! /// `````` pub fn k() {} @@ -121,3 +122,92 @@ pub fn no_error_1() {} /// backslashed \<<a href=""> //~^ ERROR unclosed HTML tag `a` pub fn p() {} + +/// <svg width="512" height="512" viewBox="0 0 512" fill="none" xmlns="http://www.w3.org/2000/svg"> +/// <rect +/// width="256" +/// height="256" +/// fill="#5064C8" +/// stroke="black" +/// /> +/// </svg> +pub fn no_error_2() {} + +/// <div> +/// <img +/// src="https://example.com/ferris.png" +/// width="512" +/// height="512" +/// /> +/// </div> +pub fn no_error_3() {} + +/// > <div +/// > class="foo"> +/// > </div> +pub fn no_error_4() {} + +/// unfinished ALLOWED_UNCLOSED +/// +/// note: CommonMark doesn't allow an html block to start with a multiline tag, +/// so we use `<br>` a bunch to force these to be parsed as html blocks. +/// +/// <br> +/// <img +//~^ ERROR incomplete HTML tag `img` +pub fn q() {} + +/// nested unfinished ALLOWED_UNCLOSED +/// <p><img</p> +//~^ ERROR incomplete HTML tag `img` +pub fn r() {} + +/// > <br> +/// > <img +//~^ ERROR incomplete HTML tag `img` +/// > href="#broken" +pub fn s() {} + +/// <br> +/// <br<br> +//~^ ERROR incomplete HTML tag `br` +pub fn t() {} + +/// <br> +/// <br +//~^ ERROR incomplete HTML tag `br` +pub fn u() {} + +/// <a href=">" alt="<">html5 allows this</a> +pub fn no_error_5() {} + +/// <br> +/// <img title=" +/// html5 +/// allows +/// multiline +/// attr +/// values +/// these are just text, not tags: +/// </div> +/// <p/> +/// <div> +/// "> +pub fn no_error_6() {} + +/// <br> +/// <a href="data:text/html,<!DOCTYPE> +/// <html> +/// <body><b>this is allowed for some reason</b></body> +/// </html> +/// ">what</a> +pub fn no_error_7() {} + +/// Technically this is allowed per the html5 spec, +/// but there's basically no legitemate reason to do it, +/// so we don't allow it. +/// +/// <p <!-->foobar</p> +//~^ ERROR Unclosed HTML comment +//~| ERROR incomplete HTML tag `p` +pub fn v() {} diff --git a/tests/rustdoc-ui/lints/invalid-html-tags.stderr b/tests/rustdoc-ui/lints/invalid-html-tags.stderr index 9c2bfcf2c3d..b6ec22c2479 100644 --- a/tests/rustdoc-ui/lints/invalid-html-tags.stderr +++ b/tests/rustdoc-ui/lints/invalid-html-tags.stderr @@ -52,6 +52,12 @@ error: unclosed HTML tag `p` LL | /// <br/> <p> | ^^^ +error: incomplete HTML tag `script` + --> $DIR/invalid-html-tags.rs:45:5 + | +LL | /// <script + | ^^^^^^^ + error: unclosed HTML tag `div` --> $DIR/invalid-html-tags.rs:41:5 | @@ -64,11 +70,11 @@ error: unclosed HTML tag `h3` LL | /// <h3> | ^^^^ -error: unclosed HTML tag `script` - --> $DIR/invalid-html-tags.rs:45:5 +error: incomplete HTML tag `div` + --> $DIR/invalid-html-tags.rs:73:10 | -LL | /// <script - | ^^^^^^ +LL | /// <div></div + | ^^^^^ error: unclosed HTML tag `div` --> $DIR/invalid-html-tags.rs:73:5 @@ -77,28 +83,73 @@ LL | /// <div></div | ^^^^^ error: Unclosed HTML comment - --> $DIR/invalid-html-tags.rs:87:5 + --> $DIR/invalid-html-tags.rs:88:5 | LL | /// <!-- - | ^^^ + | ^^^^ error: unopened HTML tag `unopened-tag` - --> $DIR/invalid-html-tags.rs:114:26 + --> $DIR/invalid-html-tags.rs:115:26 | LL | /// Web Components style </unopened-tag> | ^^^^^^^^^^^^^^^ error: unclosed HTML tag `dashed-tags` - --> $DIR/invalid-html-tags.rs:112:26 + --> $DIR/invalid-html-tags.rs:113:26 | LL | /// Web Components style <dashed-tags> | ^^^^^^^^^^^^^ error: unclosed HTML tag `a` - --> $DIR/invalid-html-tags.rs:121:19 + --> $DIR/invalid-html-tags.rs:122:19 | LL | /// backslashed \<<a href=""> | ^^ -error: aborting due to 16 previous errors +error: incomplete HTML tag `img` + --> $DIR/invalid-html-tags.rs:156:5 + | +LL | /// <img + | ^^^^ + +error: incomplete HTML tag `img` + --> $DIR/invalid-html-tags.rs:161:8 + | +LL | /// <p><img</p> + | ^^^^ + +error: incomplete HTML tag `img` + --> $DIR/invalid-html-tags.rs:166:7 + | +LL | /// > <img + | _______^ +LL | | +LL | | /// > href="#broken" + | |____________________^ + +error: incomplete HTML tag `br` + --> $DIR/invalid-html-tags.rs:172:5 + | +LL | /// <br<br> + | ^^^ + +error: incomplete HTML tag `br` + --> $DIR/invalid-html-tags.rs:177:5 + | +LL | /// <br + | ^^^ + +error: incomplete HTML tag `p` + --> $DIR/invalid-html-tags.rs:210:5 + | +LL | /// <p <!-->foobar</p> + | ^^^ + +error: Unclosed HTML comment + --> $DIR/invalid-html-tags.rs:210:8 + | +LL | /// <p <!-->foobar</p> + | ^^^^ + +error: aborting due to 24 previous errors diff --git a/tests/rustdoc/attribute-rendering.rs b/tests/rustdoc/attribute-rendering.rs index bf9b81077f3..fb40d0a9887 100644 --- a/tests/rustdoc/attribute-rendering.rs +++ b/tests/rustdoc/attribute-rendering.rs @@ -1,7 +1,8 @@ #![crate_name = "foo"] //@ has 'foo/fn.f.html' -//@ has - //*[@'class="rust item-decl"]' '#[unsafe(export_name = "f")] pub fn f()' +//@ has - //*[@'class="code-attribute"]' '#[unsafe(export_name = "f")]' +//@ has - //*[@'class="rust item-decl"]' 'pub fn f()' #[unsafe(export_name = "\ f")] pub fn f() {} diff --git a/tests/rustdoc/attributes.rs b/tests/rustdoc/attributes.rs index 34487a89127..33e4e31bec6 100644 --- a/tests/rustdoc/attributes.rs +++ b/tests/rustdoc/attributes.rs @@ -1,18 +1,81 @@ //@ edition: 2024 #![crate_name = "foo"] -//@ has foo/fn.f.html '//pre[@class="rust item-decl"]' '#[unsafe(no_mangle)]' +//@ has foo/fn.f.html '//*[@class="code-attribute"]' '#[unsafe(no_mangle)]' #[unsafe(no_mangle)] pub extern "C" fn f() {} -//@ has foo/fn.g.html '//pre[@class="rust item-decl"]' '#[unsafe(export_name = "bar")]' +//@ has foo/fn.g.html '//*[@class="code-attribute"]' '#[unsafe(export_name = "bar")]' #[unsafe(export_name = "bar")] pub extern "C" fn g() {} -//@ has foo/fn.example.html '//pre[@class="rust item-decl"]' '#[unsafe(link_section = ".text")]' +//@ has foo/fn.example.html '//*[@class="code-attribute"]' '#[unsafe(link_section = ".text")]' #[unsafe(link_section = ".text")] pub extern "C" fn example() {} -//@ has foo/struct.Repr.html '//pre[@class="rust item-decl"]' '#[repr(C, align(8))]' +//@ has foo/struct.Repr.html '//*[@class="code-attribute"]' '#[repr(C, align(8))]' #[repr(C, align(8))] pub struct Repr; + +//@ has foo/macro.macro_rule.html '//*[@class="code-attribute"]' '#[unsafe(link_section = ".text")]' +#[unsafe(link_section = ".text")] +#[macro_export] +macro_rules! macro_rule { + () => {}; +} + +//@ has 'foo/enum.Enum.html' '//*[@class="code-attribute"]' '#[unsafe(link_section = "enum")]' +#[unsafe(link_section = "enum")] +pub enum Enum { + //@ has 'foo/enum.Enum.html' '//*[@class="code-attribute"]' '#[unsafe(link_section = "a")]' + //@ has - '//*[@class="variants"]//*[@class="code-attribute"]' '#[unsafe(link_section = "a")]' + #[unsafe(link_section = "a")] + A, + //@ has 'foo/enum.Enum.html' '//*[@class="code-attribute"]' '#[unsafe(link_section = "quz")]' + //@ has - '//*[@class="variants"]//*[@class="code-attribute"]' '#[unsafe(link_section = "quz")]' + #[unsafe(link_section = "quz")] + Quz { + //@ has 'foo/enum.Enum.html' '//*[@class="code-attribute"]' '#[unsafe(link_section = "b")]' + //@ has - '//*[@class="variants"]//*[@class="code-attribute"]' '#[unsafe(link_section = "b")]' + #[unsafe(link_section = "b")] + b: (), + }, +} + +//@ has 'foo/trait.Trait.html' '//*[@class="code-attribute"]' '#[unsafe(link_section = "trait")]' +#[unsafe(link_section = "trait")] +pub trait Trait { + //@ has 'foo/trait.Trait.html' + //@ has - '//*[@id="associatedconstant.BAR"]/*[@class="code-header"]/*[@class="code-attribute"]' '#[unsafe(link_section = "bar")]' + //@ has - '//*[@id="associatedconstant.BAR"]/*[@class="code-header"]' 'const BAR: u32 = 0u32' + #[unsafe(link_section = "bar")] + const BAR: u32 = 0; + + //@ has - '//*[@class="code-attribute"]' '#[unsafe(link_section = "foo")]' + #[unsafe(link_section = "foo")] + fn foo() {} +} + +//@ has 'foo/union.Union.html' '//*[@class="code-attribute"]' '#[unsafe(link_section = "union")]' +#[unsafe(link_section = "union")] +pub union Union { + //@ has 'foo/union.Union.html' '//*[@class="code-attribute"]' '#[unsafe(link_section = "x")]' + #[unsafe(link_section = "x")] + pub x: u32, + y: f32, +} + +//@ has 'foo/struct.Struct.html' '//*[@class="code-attribute"]' '#[unsafe(link_section = "struct")]' +#[unsafe(link_section = "struct")] +pub struct Struct { + //@ has 'foo/struct.Struct.html' '//*[@class="code-attribute"]' '#[unsafe(link_section = "x")]' + //@ has - '//*[@id="structfield.x"]//*[@class="code-attribute"]' '#[unsafe(link_section = "x")]' + #[unsafe(link_section = "x")] + pub x: u32, + y: f32, +} + +// Check that the attributes from the trait items show up consistently in the impl. +//@ has 'foo/struct.Struct.html' '//*[@id="trait-implementations-list"]//*[@class="code-attribute"]' '#[unsafe(link_section = "bar")]' +//@ has 'foo/struct.Struct.html' '//*[@id="trait-implementations-list"]//*[@class="code-attribute"]' '#[unsafe(link_section = "foo")]' +impl Trait for Struct {} diff --git a/tests/rustdoc/enum/enum-variant-non_exhaustive.type-alias-code.html b/tests/rustdoc/enum/enum-variant-non_exhaustive.type-alias-code.html index 04eea709079..e8b8e93beb4 100644 --- a/tests/rustdoc/enum/enum-variant-non_exhaustive.type-alias-code.html +++ b/tests/rustdoc/enum/enum-variant-non_exhaustive.type-alias-code.html @@ -1,4 +1,4 @@ <code>pub enum TypeAlias { - #[non_exhaustive] + <div class="code-attribute">#[non_exhaustive]</div> Variant, -}</code> \ No newline at end of file +}</code> diff --git a/tests/rustdoc/enum/enum-variant-non_exhaustive.type-code.html b/tests/rustdoc/enum/enum-variant-non_exhaustive.type-code.html index 6c8851ea5df..51763c824eb 100644 --- a/tests/rustdoc/enum/enum-variant-non_exhaustive.type-code.html +++ b/tests/rustdoc/enum/enum-variant-non_exhaustive.type-code.html @@ -1,4 +1,4 @@ <code>pub enum Type { - #[non_exhaustive] + <div class="code-attribute">#[non_exhaustive]</div> Variant, -}</code> \ No newline at end of file +}</code> diff --git a/tests/rustdoc/macro/macro_expansion.rs b/tests/rustdoc/macro/macro_expansion.rs new file mode 100644 index 00000000000..c989ccad967 --- /dev/null +++ b/tests/rustdoc/macro/macro_expansion.rs @@ -0,0 +1,28 @@ +// This test checks that patterns and statements are also getting expanded. + +//@ compile-flags: -Zunstable-options --generate-macro-expansion + +#![crate_name = "foo"] + +//@ has 'src/foo/macro_expansion.rs.html' +//@ count - '//span[@class="expansion"]' 2 + +macro_rules! pat { + ($x:literal) => { + Some($x) + } +} + +macro_rules! stmt { + ($x:expr) => {{ + let _ = $x; + }} +} + +fn bar() { + match Some("hello") { + pat!("blolb") => {} + _ => {} + } + stmt!(1) +} diff --git a/tests/rustdoc/type-alias/repr.rs b/tests/rustdoc/type-alias/repr.rs index cf907980360..884ed74264a 100644 --- a/tests/rustdoc/type-alias/repr.rs +++ b/tests/rustdoc/type-alias/repr.rs @@ -22,7 +22,8 @@ pub union Foo2 { } //@ has 'foo/type.Bar2.html' -//@ matches - '//*[@class="rust item-decl"]' '#\[repr\(C\)\]\npub union Bar2 \{*' +//@ matches - '//*[@class="code-attribute"]' '#\[repr\(C\)\]' +//@ matches - '//*[@class="rust item-decl"]' 'pub union Bar2 \{*' // Ensures that we see the doc comment of the type alias and not of the aliased type. //@ has - '//*[@class="toggle top-doc"]/*[@class="docblock"]' 'bar' /// bar diff --git a/tests/ui-fulldeps/internal-lints/query_stability.rs b/tests/ui-fulldeps/internal-lints/query_stability.rs index 7b897fabd2d..92c1d6bf7f8 100644 --- a/tests/ui-fulldeps/internal-lints/query_stability.rs +++ b/tests/ui-fulldeps/internal-lints/query_stability.rs @@ -1,4 +1,5 @@ //@ compile-flags: -Z unstable-options +//@ ignore-stage1 #![feature(rustc_private)] #![deny(rustc::potential_query_instability)] @@ -34,4 +35,16 @@ fn main() { //~^ ERROR using `values_mut` can result in unstable query results *val = *val + 10; } + + FxHashMap::<u32, i32>::default().extend(x); + //~^ ERROR using `into_iter` can result in unstable query results +} + +fn hide_into_iter<T>(x: impl IntoIterator<Item = T>) -> impl Iterator<Item = T> { + x.into_iter() +} + +fn take(map: std::collections::HashMap<i32, i32>) { + _ = hide_into_iter(map); + //~^ ERROR using `into_iter` can result in unstable query results } diff --git a/tests/ui-fulldeps/internal-lints/query_stability.stderr b/tests/ui-fulldeps/internal-lints/query_stability.stderr index 43b156dc20a..e5bb0453f90 100644 --- a/tests/ui-fulldeps/internal-lints/query_stability.stderr +++ b/tests/ui-fulldeps/internal-lints/query_stability.stderr @@ -1,18 +1,18 @@ error: using `drain` can result in unstable query results - --> $DIR/query_stability.rs:13:16 + --> $DIR/query_stability.rs:14:16 | LL | for _ in x.drain() {} | ^^^^^ | = note: if you believe this case to be fine, allow this lint and add a comment explaining your rationale note: the lint level is defined here - --> $DIR/query_stability.rs:4:9 + --> $DIR/query_stability.rs:5:9 | LL | #![deny(rustc::potential_query_instability)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: using `iter` can result in unstable query results - --> $DIR/query_stability.rs:16:16 + --> $DIR/query_stability.rs:17:16 | LL | for _ in x.iter() {} | ^^^^ @@ -20,7 +20,7 @@ LL | for _ in x.iter() {} = note: if you believe this case to be fine, allow this lint and add a comment explaining your rationale error: using `iter_mut` can result in unstable query results - --> $DIR/query_stability.rs:19:36 + --> $DIR/query_stability.rs:20:36 | LL | for _ in Some(&mut x).unwrap().iter_mut() {} | ^^^^^^^^ @@ -28,7 +28,7 @@ LL | for _ in Some(&mut x).unwrap().iter_mut() {} = note: if you believe this case to be fine, allow this lint and add a comment explaining your rationale error: using `into_iter` can result in unstable query results - --> $DIR/query_stability.rs:22:14 + --> $DIR/query_stability.rs:23:14 | LL | for _ in x {} | ^ @@ -36,7 +36,7 @@ LL | for _ in x {} = note: if you believe this case to be fine, allow this lint and add a comment explaining your rationale error: using `keys` can result in unstable query results - --> $DIR/query_stability.rs:26:15 + --> $DIR/query_stability.rs:27:15 | LL | let _ = x.keys(); | ^^^^ @@ -44,7 +44,7 @@ LL | let _ = x.keys(); = note: if you believe this case to be fine, allow this lint and add a comment explaining your rationale error: using `values` can result in unstable query results - --> $DIR/query_stability.rs:29:15 + --> $DIR/query_stability.rs:30:15 | LL | let _ = x.values(); | ^^^^^^ @@ -52,12 +52,28 @@ LL | let _ = x.values(); = note: if you believe this case to be fine, allow this lint and add a comment explaining your rationale error: using `values_mut` can result in unstable query results - --> $DIR/query_stability.rs:33:18 + --> $DIR/query_stability.rs:34:18 | LL | for val in x.values_mut() { | ^^^^^^^^^^ | = note: if you believe this case to be fine, allow this lint and add a comment explaining your rationale -error: aborting due to 7 previous errors +error: using `into_iter` can result in unstable query results + --> $DIR/query_stability.rs:39:38 + | +LL | FxHashMap::<u32, i32>::default().extend(x); + | ^^^^^^^^^ + | + = note: if you believe this case to be fine, allow this lint and add a comment explaining your rationale + +error: using `into_iter` can result in unstable query results + --> $DIR/query_stability.rs:48:9 + | +LL | _ = hide_into_iter(map); + | ^^^^^^^^^^^^^^^^^^^ + | + = note: if you believe this case to be fine, allow this lint and add a comment explaining your rationale + +error: aborting due to 9 previous errors diff --git a/tests/ui-fulldeps/rustc-dev-remap.only-remap.stderr b/tests/ui-fulldeps/rustc-dev-remap.only-remap.stderr index 0c969b9c6d8..b8de9291d65 100644 --- a/tests/ui-fulldeps/rustc-dev-remap.only-remap.stderr +++ b/tests/ui-fulldeps/rustc-dev-remap.only-remap.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `NotAValidResultType: VisitorResult` is not satisf --> $DIR/rustc-dev-remap.rs:LL:COL | LL | type Result = NotAValidResultType; - | ^^^^^^^^^^^^^^^^^^^ the trait `VisitorResult` is not implemented for `NotAValidResultType` + | ^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | +help: the trait `VisitorResult` is not implemented for `NotAValidResultType` + --> $DIR/rustc-dev-remap.rs:LL:COL + | +LL | struct NotAValidResultType; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ = help: the following other types implement trait `VisitorResult`: () ControlFlow<T> diff --git a/tests/ui-fulldeps/rustc-dev-remap.remap-unremap.stderr b/tests/ui-fulldeps/rustc-dev-remap.remap-unremap.stderr index 6ac8c3046f6..29b43c819d0 100644 --- a/tests/ui-fulldeps/rustc-dev-remap.remap-unremap.stderr +++ b/tests/ui-fulldeps/rustc-dev-remap.remap-unremap.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `NotAValidResultType: VisitorResult` is not satisf --> $DIR/rustc-dev-remap.rs:LL:COL | LL | type Result = NotAValidResultType; - | ^^^^^^^^^^^^^^^^^^^ the trait `VisitorResult` is not implemented for `NotAValidResultType` + | ^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | +help: the trait `VisitorResult` is not implemented for `NotAValidResultType` + --> $DIR/rustc-dev-remap.rs:LL:COL + | +LL | struct NotAValidResultType; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ = help: the following other types implement trait `VisitorResult`: () ControlFlow<T> diff --git a/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-doc-comment-field.stderr b/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-doc-comment-field.stderr index 7377b0dfd0a..8b6c4b181c0 100644 --- a/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-doc-comment-field.stderr +++ b/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-doc-comment-field.stderr @@ -5,8 +5,13 @@ LL | #[derive(Diagnostic)] | ---------- required by a bound introduced by this call ... LL | arg: NotIntoDiagArg, - | ^^^^^^^^^^^^^^ the trait `IntoDiagArg` is not implemented for `NotIntoDiagArg` + | ^^^^^^^^^^^^^^ unsatisfied trait bound | +help: the trait `IntoDiagArg` is not implemented for `NotIntoDiagArg` + --> $DIR/diagnostic-derive-doc-comment-field.rs:28:1 + | +LL | struct NotIntoDiagArg; + | ^^^^^^^^^^^^^^^^^^^^^ = help: normalized in stderr note: required by a bound in `Diag::<'a, G>::arg` --> $COMPILER_DIR/rustc_errors/src/diagnostic.rs:LL:CC @@ -19,8 +24,13 @@ LL | #[derive(Subdiagnostic)] | ------------- required by a bound introduced by this call ... LL | arg: NotIntoDiagArg, - | ^^^^^^^^^^^^^^ the trait `IntoDiagArg` is not implemented for `NotIntoDiagArg` + | ^^^^^^^^^^^^^^ unsatisfied trait bound + | +help: the trait `IntoDiagArg` is not implemented for `NotIntoDiagArg` + --> $DIR/diagnostic-derive-doc-comment-field.rs:28:1 | +LL | struct NotIntoDiagArg; + | ^^^^^^^^^^^^^^^^^^^^^ = help: normalized in stderr note: required by a bound in `Diag::<'a, G>::arg` --> $COMPILER_DIR/rustc_errors/src/diagnostic.rs:LL:CC diff --git a/tests/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr b/tests/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr index 396abb001ce..59b48e9f0ec 100644 --- a/tests/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr +++ b/tests/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr @@ -637,8 +637,13 @@ LL | #[derive(Diagnostic)] | ---------- required by a bound introduced by this call ... LL | other: Hello, - | ^^^^^ the trait `IntoDiagArg` is not implemented for `Hello` + | ^^^^^ unsatisfied trait bound | +help: the trait `IntoDiagArg` is not implemented for `Hello` + --> $DIR/diagnostic-derive.rs:40:1 + | +LL | struct Hello {} + | ^^^^^^^^^^^^ = help: normalized in stderr note: required by a bound in `Diag::<'a, G>::arg` --> $COMPILER_DIR/rustc_errors/src/diagnostic.rs:LL:CC diff --git a/tests/ui/abi/cannot-be-called.avr.stderr b/tests/ui/abi/cannot-be-called.avr.stderr index 1129893cbfa..ed3fa4a20c5 100644 --- a/tests/ui/abi/cannot-be-called.avr.stderr +++ b/tests/ui/abi/cannot-be-called.avr.stderr @@ -19,53 +19,53 @@ LL | extern "riscv-interrupt-s" fn riscv_s() {} error[E0570]: "x86-interrupt" is not a supported ABI for the current target --> $DIR/cannot-be-called.rs:45:8 | -LL | extern "x86-interrupt" fn x86() {} +LL | extern "x86-interrupt" fn x86(_x: *const u8) {} | ^^^^^^^^^^^^^^^ error[E0570]: "msp430-interrupt" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:70:25 + --> $DIR/cannot-be-called.rs:72:25 | LL | fn msp430_ptr(f: extern "msp430-interrupt" fn()) { | ^^^^^^^^^^^^^^^^^^ error[E0570]: "riscv-interrupt-m" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:76:26 + --> $DIR/cannot-be-called.rs:78:26 | LL | fn riscv_m_ptr(f: extern "riscv-interrupt-m" fn()) { | ^^^^^^^^^^^^^^^^^^^ error[E0570]: "riscv-interrupt-s" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:82:26 + --> $DIR/cannot-be-called.rs:84:26 | LL | fn riscv_s_ptr(f: extern "riscv-interrupt-s" fn()) { | ^^^^^^^^^^^^^^^^^^^ error[E0570]: "x86-interrupt" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:88:22 + --> $DIR/cannot-be-called.rs:90:22 | LL | fn x86_ptr(f: extern "x86-interrupt" fn()) { | ^^^^^^^^^^^^^^^ error: functions with the "avr-interrupt" ABI cannot be called - --> $DIR/cannot-be-called.rs:50:5 + --> $DIR/cannot-be-called.rs:52:5 | LL | avr(); | ^^^^^ | note: an `extern "avr-interrupt"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:50:5 + --> $DIR/cannot-be-called.rs:52:5 | LL | avr(); | ^^^^^ error: functions with the "avr-interrupt" ABI cannot be called - --> $DIR/cannot-be-called.rs:66:5 + --> $DIR/cannot-be-called.rs:68:5 | LL | f() | ^^^ | note: an `extern "avr-interrupt"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:66:5 + --> $DIR/cannot-be-called.rs:68:5 | LL | f() | ^^^ diff --git a/tests/ui/abi/cannot-be-called.i686.stderr b/tests/ui/abi/cannot-be-called.i686.stderr index 024d5e2e93d..6ccb10c44fd 100644 --- a/tests/ui/abi/cannot-be-called.i686.stderr +++ b/tests/ui/abi/cannot-be-called.i686.stderr @@ -23,49 +23,49 @@ LL | extern "riscv-interrupt-s" fn riscv_s() {} | ^^^^^^^^^^^^^^^^^^^ error[E0570]: "avr-interrupt" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:64:22 + --> $DIR/cannot-be-called.rs:66:22 | LL | fn avr_ptr(f: extern "avr-interrupt" fn()) { | ^^^^^^^^^^^^^^^ error[E0570]: "msp430-interrupt" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:70:25 + --> $DIR/cannot-be-called.rs:72:25 | LL | fn msp430_ptr(f: extern "msp430-interrupt" fn()) { | ^^^^^^^^^^^^^^^^^^ error[E0570]: "riscv-interrupt-m" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:76:26 + --> $DIR/cannot-be-called.rs:78:26 | LL | fn riscv_m_ptr(f: extern "riscv-interrupt-m" fn()) { | ^^^^^^^^^^^^^^^^^^^ error[E0570]: "riscv-interrupt-s" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:82:26 + --> $DIR/cannot-be-called.rs:84:26 | LL | fn riscv_s_ptr(f: extern "riscv-interrupt-s" fn()) { | ^^^^^^^^^^^^^^^^^^^ error: functions with the "x86-interrupt" ABI cannot be called - --> $DIR/cannot-be-called.rs:58:5 + --> $DIR/cannot-be-called.rs:60:5 | -LL | x86(); - | ^^^^^ +LL | x86(&raw const BYTE); + | ^^^^^^^^^^^^^^^^^^^^ | note: an `extern "x86-interrupt"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:58:5 + --> $DIR/cannot-be-called.rs:60:5 | -LL | x86(); - | ^^^^^ +LL | x86(&raw const BYTE); + | ^^^^^^^^^^^^^^^^^^^^ error: functions with the "x86-interrupt" ABI cannot be called - --> $DIR/cannot-be-called.rs:90:5 + --> $DIR/cannot-be-called.rs:92:5 | LL | f() | ^^^ | note: an `extern "x86-interrupt"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:90:5 + --> $DIR/cannot-be-called.rs:92:5 | LL | f() | ^^^ diff --git a/tests/ui/abi/cannot-be-called.msp430.stderr b/tests/ui/abi/cannot-be-called.msp430.stderr index 52d7d792510..0bd5bb40b71 100644 --- a/tests/ui/abi/cannot-be-called.msp430.stderr +++ b/tests/ui/abi/cannot-be-called.msp430.stderr @@ -19,53 +19,53 @@ LL | extern "riscv-interrupt-s" fn riscv_s() {} error[E0570]: "x86-interrupt" is not a supported ABI for the current target --> $DIR/cannot-be-called.rs:45:8 | -LL | extern "x86-interrupt" fn x86() {} +LL | extern "x86-interrupt" fn x86(_x: *const u8) {} | ^^^^^^^^^^^^^^^ error[E0570]: "avr-interrupt" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:64:22 + --> $DIR/cannot-be-called.rs:66:22 | LL | fn avr_ptr(f: extern "avr-interrupt" fn()) { | ^^^^^^^^^^^^^^^ error[E0570]: "riscv-interrupt-m" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:76:26 + --> $DIR/cannot-be-called.rs:78:26 | LL | fn riscv_m_ptr(f: extern "riscv-interrupt-m" fn()) { | ^^^^^^^^^^^^^^^^^^^ error[E0570]: "riscv-interrupt-s" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:82:26 + --> $DIR/cannot-be-called.rs:84:26 | LL | fn riscv_s_ptr(f: extern "riscv-interrupt-s" fn()) { | ^^^^^^^^^^^^^^^^^^^ error[E0570]: "x86-interrupt" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:88:22 + --> $DIR/cannot-be-called.rs:90:22 | LL | fn x86_ptr(f: extern "x86-interrupt" fn()) { | ^^^^^^^^^^^^^^^ error: functions with the "msp430-interrupt" ABI cannot be called - --> $DIR/cannot-be-called.rs:52:5 + --> $DIR/cannot-be-called.rs:54:5 | LL | msp430(); | ^^^^^^^^ | note: an `extern "msp430-interrupt"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:52:5 + --> $DIR/cannot-be-called.rs:54:5 | LL | msp430(); | ^^^^^^^^ error: functions with the "msp430-interrupt" ABI cannot be called - --> $DIR/cannot-be-called.rs:72:5 + --> $DIR/cannot-be-called.rs:74:5 | LL | f() | ^^^ | note: an `extern "msp430-interrupt"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:72:5 + --> $DIR/cannot-be-called.rs:74:5 | LL | f() | ^^^ diff --git a/tests/ui/abi/cannot-be-called.riscv32.stderr b/tests/ui/abi/cannot-be-called.riscv32.stderr index 119d93bd58e..6d763bd6379 100644 --- a/tests/ui/abi/cannot-be-called.riscv32.stderr +++ b/tests/ui/abi/cannot-be-called.riscv32.stderr @@ -13,71 +13,71 @@ LL | extern "avr-interrupt" fn avr() {} error[E0570]: "x86-interrupt" is not a supported ABI for the current target --> $DIR/cannot-be-called.rs:45:8 | -LL | extern "x86-interrupt" fn x86() {} +LL | extern "x86-interrupt" fn x86(_x: *const u8) {} | ^^^^^^^^^^^^^^^ error[E0570]: "avr-interrupt" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:64:22 + --> $DIR/cannot-be-called.rs:66:22 | LL | fn avr_ptr(f: extern "avr-interrupt" fn()) { | ^^^^^^^^^^^^^^^ error[E0570]: "msp430-interrupt" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:70:25 + --> $DIR/cannot-be-called.rs:72:25 | LL | fn msp430_ptr(f: extern "msp430-interrupt" fn()) { | ^^^^^^^^^^^^^^^^^^ error[E0570]: "x86-interrupt" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:88:22 + --> $DIR/cannot-be-called.rs:90:22 | LL | fn x86_ptr(f: extern "x86-interrupt" fn()) { | ^^^^^^^^^^^^^^^ error: functions with the "riscv-interrupt-m" ABI cannot be called - --> $DIR/cannot-be-called.rs:54:5 + --> $DIR/cannot-be-called.rs:56:5 | LL | riscv_m(); | ^^^^^^^^^ | note: an `extern "riscv-interrupt-m"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:54:5 + --> $DIR/cannot-be-called.rs:56:5 | LL | riscv_m(); | ^^^^^^^^^ error: functions with the "riscv-interrupt-s" ABI cannot be called - --> $DIR/cannot-be-called.rs:56:5 + --> $DIR/cannot-be-called.rs:58:5 | LL | riscv_s(); | ^^^^^^^^^ | note: an `extern "riscv-interrupt-s"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:56:5 + --> $DIR/cannot-be-called.rs:58:5 | LL | riscv_s(); | ^^^^^^^^^ error: functions with the "riscv-interrupt-m" ABI cannot be called - --> $DIR/cannot-be-called.rs:78:5 + --> $DIR/cannot-be-called.rs:80:5 | LL | f() | ^^^ | note: an `extern "riscv-interrupt-m"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:78:5 + --> $DIR/cannot-be-called.rs:80:5 | LL | f() | ^^^ error: functions with the "riscv-interrupt-s" ABI cannot be called - --> $DIR/cannot-be-called.rs:84:5 + --> $DIR/cannot-be-called.rs:86:5 | LL | f() | ^^^ | note: an `extern "riscv-interrupt-s"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:84:5 + --> $DIR/cannot-be-called.rs:86:5 | LL | f() | ^^^ diff --git a/tests/ui/abi/cannot-be-called.riscv64.stderr b/tests/ui/abi/cannot-be-called.riscv64.stderr index 119d93bd58e..6d763bd6379 100644 --- a/tests/ui/abi/cannot-be-called.riscv64.stderr +++ b/tests/ui/abi/cannot-be-called.riscv64.stderr @@ -13,71 +13,71 @@ LL | extern "avr-interrupt" fn avr() {} error[E0570]: "x86-interrupt" is not a supported ABI for the current target --> $DIR/cannot-be-called.rs:45:8 | -LL | extern "x86-interrupt" fn x86() {} +LL | extern "x86-interrupt" fn x86(_x: *const u8) {} | ^^^^^^^^^^^^^^^ error[E0570]: "avr-interrupt" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:64:22 + --> $DIR/cannot-be-called.rs:66:22 | LL | fn avr_ptr(f: extern "avr-interrupt" fn()) { | ^^^^^^^^^^^^^^^ error[E0570]: "msp430-interrupt" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:70:25 + --> $DIR/cannot-be-called.rs:72:25 | LL | fn msp430_ptr(f: extern "msp430-interrupt" fn()) { | ^^^^^^^^^^^^^^^^^^ error[E0570]: "x86-interrupt" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:88:22 + --> $DIR/cannot-be-called.rs:90:22 | LL | fn x86_ptr(f: extern "x86-interrupt" fn()) { | ^^^^^^^^^^^^^^^ error: functions with the "riscv-interrupt-m" ABI cannot be called - --> $DIR/cannot-be-called.rs:54:5 + --> $DIR/cannot-be-called.rs:56:5 | LL | riscv_m(); | ^^^^^^^^^ | note: an `extern "riscv-interrupt-m"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:54:5 + --> $DIR/cannot-be-called.rs:56:5 | LL | riscv_m(); | ^^^^^^^^^ error: functions with the "riscv-interrupt-s" ABI cannot be called - --> $DIR/cannot-be-called.rs:56:5 + --> $DIR/cannot-be-called.rs:58:5 | LL | riscv_s(); | ^^^^^^^^^ | note: an `extern "riscv-interrupt-s"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:56:5 + --> $DIR/cannot-be-called.rs:58:5 | LL | riscv_s(); | ^^^^^^^^^ error: functions with the "riscv-interrupt-m" ABI cannot be called - --> $DIR/cannot-be-called.rs:78:5 + --> $DIR/cannot-be-called.rs:80:5 | LL | f() | ^^^ | note: an `extern "riscv-interrupt-m"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:78:5 + --> $DIR/cannot-be-called.rs:80:5 | LL | f() | ^^^ error: functions with the "riscv-interrupt-s" ABI cannot be called - --> $DIR/cannot-be-called.rs:84:5 + --> $DIR/cannot-be-called.rs:86:5 | LL | f() | ^^^ | note: an `extern "riscv-interrupt-s"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:84:5 + --> $DIR/cannot-be-called.rs:86:5 | LL | f() | ^^^ diff --git a/tests/ui/abi/cannot-be-called.rs b/tests/ui/abi/cannot-be-called.rs index af979d65d33..b0267cfa37e 100644 --- a/tests/ui/abi/cannot-be-called.rs +++ b/tests/ui/abi/cannot-be-called.rs @@ -42,9 +42,11 @@ extern "riscv-interrupt-m" fn riscv_m() {} //[x64,x64_win,i686,avr,msp430]~^ ERROR is not a supported ABI extern "riscv-interrupt-s" fn riscv_s() {} //[x64,x64_win,i686,avr,msp430]~^ ERROR is not a supported ABI -extern "x86-interrupt" fn x86() {} +extern "x86-interrupt" fn x86(_x: *const u8) {} //[riscv32,riscv64,avr,msp430]~^ ERROR is not a supported ABI +static BYTE: u8 = 0; + /* extern "interrupt" calls */ fn call_the_interrupts() { avr(); @@ -55,7 +57,7 @@ fn call_the_interrupts() { //[riscv32,riscv64]~^ ERROR functions with the "riscv-interrupt-m" ABI cannot be called riscv_s(); //[riscv32,riscv64]~^ ERROR functions with the "riscv-interrupt-s" ABI cannot be called - x86(); + x86(&raw const BYTE); //[x64,x64_win,i686]~^ ERROR functions with the "x86-interrupt" ABI cannot be called } diff --git a/tests/ui/abi/cannot-be-called.x64.stderr b/tests/ui/abi/cannot-be-called.x64.stderr index 024d5e2e93d..6ccb10c44fd 100644 --- a/tests/ui/abi/cannot-be-called.x64.stderr +++ b/tests/ui/abi/cannot-be-called.x64.stderr @@ -23,49 +23,49 @@ LL | extern "riscv-interrupt-s" fn riscv_s() {} | ^^^^^^^^^^^^^^^^^^^ error[E0570]: "avr-interrupt" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:64:22 + --> $DIR/cannot-be-called.rs:66:22 | LL | fn avr_ptr(f: extern "avr-interrupt" fn()) { | ^^^^^^^^^^^^^^^ error[E0570]: "msp430-interrupt" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:70:25 + --> $DIR/cannot-be-called.rs:72:25 | LL | fn msp430_ptr(f: extern "msp430-interrupt" fn()) { | ^^^^^^^^^^^^^^^^^^ error[E0570]: "riscv-interrupt-m" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:76:26 + --> $DIR/cannot-be-called.rs:78:26 | LL | fn riscv_m_ptr(f: extern "riscv-interrupt-m" fn()) { | ^^^^^^^^^^^^^^^^^^^ error[E0570]: "riscv-interrupt-s" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:82:26 + --> $DIR/cannot-be-called.rs:84:26 | LL | fn riscv_s_ptr(f: extern "riscv-interrupt-s" fn()) { | ^^^^^^^^^^^^^^^^^^^ error: functions with the "x86-interrupt" ABI cannot be called - --> $DIR/cannot-be-called.rs:58:5 + --> $DIR/cannot-be-called.rs:60:5 | -LL | x86(); - | ^^^^^ +LL | x86(&raw const BYTE); + | ^^^^^^^^^^^^^^^^^^^^ | note: an `extern "x86-interrupt"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:58:5 + --> $DIR/cannot-be-called.rs:60:5 | -LL | x86(); - | ^^^^^ +LL | x86(&raw const BYTE); + | ^^^^^^^^^^^^^^^^^^^^ error: functions with the "x86-interrupt" ABI cannot be called - --> $DIR/cannot-be-called.rs:90:5 + --> $DIR/cannot-be-called.rs:92:5 | LL | f() | ^^^ | note: an `extern "x86-interrupt"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:90:5 + --> $DIR/cannot-be-called.rs:92:5 | LL | f() | ^^^ diff --git a/tests/ui/abi/cannot-be-called.x64_win.stderr b/tests/ui/abi/cannot-be-called.x64_win.stderr index 024d5e2e93d..6ccb10c44fd 100644 --- a/tests/ui/abi/cannot-be-called.x64_win.stderr +++ b/tests/ui/abi/cannot-be-called.x64_win.stderr @@ -23,49 +23,49 @@ LL | extern "riscv-interrupt-s" fn riscv_s() {} | ^^^^^^^^^^^^^^^^^^^ error[E0570]: "avr-interrupt" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:64:22 + --> $DIR/cannot-be-called.rs:66:22 | LL | fn avr_ptr(f: extern "avr-interrupt" fn()) { | ^^^^^^^^^^^^^^^ error[E0570]: "msp430-interrupt" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:70:25 + --> $DIR/cannot-be-called.rs:72:25 | LL | fn msp430_ptr(f: extern "msp430-interrupt" fn()) { | ^^^^^^^^^^^^^^^^^^ error[E0570]: "riscv-interrupt-m" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:76:26 + --> $DIR/cannot-be-called.rs:78:26 | LL | fn riscv_m_ptr(f: extern "riscv-interrupt-m" fn()) { | ^^^^^^^^^^^^^^^^^^^ error[E0570]: "riscv-interrupt-s" is not a supported ABI for the current target - --> $DIR/cannot-be-called.rs:82:26 + --> $DIR/cannot-be-called.rs:84:26 | LL | fn riscv_s_ptr(f: extern "riscv-interrupt-s" fn()) { | ^^^^^^^^^^^^^^^^^^^ error: functions with the "x86-interrupt" ABI cannot be called - --> $DIR/cannot-be-called.rs:58:5 + --> $DIR/cannot-be-called.rs:60:5 | -LL | x86(); - | ^^^^^ +LL | x86(&raw const BYTE); + | ^^^^^^^^^^^^^^^^^^^^ | note: an `extern "x86-interrupt"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:58:5 + --> $DIR/cannot-be-called.rs:60:5 | -LL | x86(); - | ^^^^^ +LL | x86(&raw const BYTE); + | ^^^^^^^^^^^^^^^^^^^^ error: functions with the "x86-interrupt" ABI cannot be called - --> $DIR/cannot-be-called.rs:90:5 + --> $DIR/cannot-be-called.rs:92:5 | LL | f() | ^^^ | note: an `extern "x86-interrupt"` function can only be called using inline assembly - --> $DIR/cannot-be-called.rs:90:5 + --> $DIR/cannot-be-called.rs:92:5 | LL | f() | ^^^ diff --git a/tests/ui/abi/cannot-be-coroutine.i686.stderr b/tests/ui/abi/cannot-be-coroutine.i686.stderr index 8c9292b6a32..230847ff269 100644 --- a/tests/ui/abi/cannot-be-coroutine.i686.stderr +++ b/tests/ui/abi/cannot-be-coroutine.i686.stderr @@ -1,13 +1,13 @@ error: functions with the "x86-interrupt" ABI cannot be `async` --> $DIR/cannot-be-coroutine.rs:52:1 | -LL | async extern "x86-interrupt" fn x86() { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | async extern "x86-interrupt" fn x86(_p: *mut ()) { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | help: remove the `async` keyword from this definition | -LL - async extern "x86-interrupt" fn x86() { -LL + extern "x86-interrupt" fn x86() { +LL - async extern "x86-interrupt" fn x86(_p: *mut ()) { +LL + extern "x86-interrupt" fn x86(_p: *mut ()) { | error: requires `ResumeTy` lang_item diff --git a/tests/ui/abi/cannot-be-coroutine.rs b/tests/ui/abi/cannot-be-coroutine.rs index 7270a55f69e..e3d3d45c632 100644 --- a/tests/ui/abi/cannot-be-coroutine.rs +++ b/tests/ui/abi/cannot-be-coroutine.rs @@ -49,6 +49,6 @@ async extern "riscv-interrupt-s" fn riscv_s() { //[riscv32,riscv64]~^ ERROR functions with the "riscv-interrupt-s" ABI cannot be `async` } -async extern "x86-interrupt" fn x86() { +async extern "x86-interrupt" fn x86(_p: *mut ()) { //[x64,x64_win,i686]~^ ERROR functions with the "x86-interrupt" ABI cannot be `async` } diff --git a/tests/ui/abi/cannot-be-coroutine.x64.stderr b/tests/ui/abi/cannot-be-coroutine.x64.stderr index 8c9292b6a32..230847ff269 100644 --- a/tests/ui/abi/cannot-be-coroutine.x64.stderr +++ b/tests/ui/abi/cannot-be-coroutine.x64.stderr @@ -1,13 +1,13 @@ error: functions with the "x86-interrupt" ABI cannot be `async` --> $DIR/cannot-be-coroutine.rs:52:1 | -LL | async extern "x86-interrupt" fn x86() { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | async extern "x86-interrupt" fn x86(_p: *mut ()) { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | help: remove the `async` keyword from this definition | -LL - async extern "x86-interrupt" fn x86() { -LL + extern "x86-interrupt" fn x86() { +LL - async extern "x86-interrupt" fn x86(_p: *mut ()) { +LL + extern "x86-interrupt" fn x86(_p: *mut ()) { | error: requires `ResumeTy` lang_item diff --git a/tests/ui/abi/cannot-be-coroutine.x64_win.stderr b/tests/ui/abi/cannot-be-coroutine.x64_win.stderr index 8c9292b6a32..230847ff269 100644 --- a/tests/ui/abi/cannot-be-coroutine.x64_win.stderr +++ b/tests/ui/abi/cannot-be-coroutine.x64_win.stderr @@ -1,13 +1,13 @@ error: functions with the "x86-interrupt" ABI cannot be `async` --> $DIR/cannot-be-coroutine.rs:52:1 | -LL | async extern "x86-interrupt" fn x86() { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | async extern "x86-interrupt" fn x86(_p: *mut ()) { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | help: remove the `async` keyword from this definition | -LL - async extern "x86-interrupt" fn x86() { -LL + extern "x86-interrupt" fn x86() { +LL - async extern "x86-interrupt" fn x86(_p: *mut ()) { +LL + extern "x86-interrupt" fn x86(_p: *mut ()) { | error: requires `ResumeTy` lang_item diff --git a/tests/ui/abi/debug.generic.stderr b/tests/ui/abi/debug.generic.stderr index 3b29efc8102..0fec35dabdd 100644 --- a/tests/ui/abi/debug.generic.stderr +++ b/tests/ui/abi/debug.generic.stderr @@ -89,7 +89,7 @@ error: fn_abi_of(test) = FnAbi { conv: Rust, can_unwind: $SOME_BOOL, } - --> $DIR/debug.rs:27:1 + --> $DIR/debug.rs:30:1 | LL | fn test(_x: u8) -> bool { | ^^^^^^^^^^^^^^^^^^^^^^^ @@ -185,7 +185,7 @@ error: fn_abi_of(TestFnPtr) = FnAbi { conv: Rust, can_unwind: $SOME_BOOL, } - --> $DIR/debug.rs:33:1 + --> $DIR/debug.rs:36:1 | LL | type TestFnPtr = fn(bool) -> u8; | ^^^^^^^^^^^^^^ @@ -263,13 +263,13 @@ error: fn_abi_of(test_generic) = FnAbi { conv: Rust, can_unwind: $SOME_BOOL, } - --> $DIR/debug.rs:36:1 + --> $DIR/debug.rs:39:1 | LL | fn test_generic<T>(_x: *const T) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: `#[rustc_abi]` can only be applied to function items, type aliases, and associated functions - --> $DIR/debug.rs:39:1 + --> $DIR/debug.rs:42:1 | LL | const C: () = (); | ^^^^^^^^^^^ @@ -419,7 +419,7 @@ error: ABIs are not compatible conv: Rust, can_unwind: $SOME_BOOL, } - --> $DIR/debug.rs:55:1 + --> $DIR/debug.rs:58:1 | LL | type TestAbiNe = (fn(u8), fn(u32)); | ^^^^^^^^^^^^^^ @@ -571,7 +571,7 @@ error: ABIs are not compatible conv: Rust, can_unwind: $SOME_BOOL, } - --> $DIR/debug.rs:58:1 + --> $DIR/debug.rs:61:1 | LL | type TestAbiNeLarger = (fn([u8; 32]), fn([u32; 32])); | ^^^^^^^^^^^^^^^^^^^^ @@ -720,7 +720,7 @@ error: ABIs are not compatible conv: Rust, can_unwind: $SOME_BOOL, } - --> $DIR/debug.rs:61:1 + --> $DIR/debug.rs:64:1 | LL | type TestAbiNeFloat = (fn(f32), fn(u32)); | ^^^^^^^^^^^^^^^^^^^ @@ -870,13 +870,13 @@ error: ABIs are not compatible conv: Rust, can_unwind: $SOME_BOOL, } - --> $DIR/debug.rs:65:1 + --> $DIR/debug.rs:68:1 | LL | type TestAbiNeSign = (fn(i32), fn(u32)); | ^^^^^^^^^^^^^^^^^^ error[E0277]: the size for values of type `str` cannot be known at compilation time - --> $DIR/debug.rs:68:46 + --> $DIR/debug.rs:71:46 | LL | type TestAbiEqNonsense = (fn((str, str)), fn((str, str))); | ^^^^^^^^^^ doesn't have a size known at compile-time @@ -885,13 +885,13 @@ LL | type TestAbiEqNonsense = (fn((str, str)), fn((str, str))); = note: only the last element of a tuple may have a dynamically sized type error: unrecognized argument - --> $DIR/debug.rs:70:13 + --> $DIR/debug.rs:73:13 | LL | #[rustc_abi("assert_eq")] | ^^^^^^^^^^^ error: `#[rustc_abi]` can only be applied to function items, type aliases, and associated functions - --> $DIR/debug.rs:43:5 + --> $DIR/debug.rs:46:5 | LL | const C: () = (); | ^^^^^^^^^^^ @@ -939,7 +939,7 @@ error: fn_abi_of(assoc_test) = FnAbi { }, mode: Direct( ArgAttributes { - regular: NoAlias | NonNull | ReadOnly | NoUndef, + regular: NoAlias | NonNull | ReadOnly | NoUndef | CapturesReadOnly, arg_ext: None, pointee_size: Size(2 bytes), pointee_align: Some( @@ -981,7 +981,7 @@ error: fn_abi_of(assoc_test) = FnAbi { conv: Rust, can_unwind: $SOME_BOOL, } - --> $DIR/debug.rs:48:5 + --> $DIR/debug.rs:51:5 | LL | fn assoc_test(&self) {} | ^^^^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/abi/debug.loongarch64.stderr b/tests/ui/abi/debug.loongarch64.stderr new file mode 100644 index 00000000000..ce8bd41f045 --- /dev/null +++ b/tests/ui/abi/debug.loongarch64.stderr @@ -0,0 +1,991 @@ +error: fn_abi_of(test) = FnAbi { + args: [ + ArgAbi { + layout: TyAndLayout { + ty: u8, + layout: Layout { + size: Size(1 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Scalar( + Initialized { + value: Int( + I8, + false, + ), + valid_range: 0..=255, + }, + ), + fields: Primitive, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Direct( + ArgAttributes { + regular: NoUndef, + arg_ext: Zext, + pointee_size: Size(0 bytes), + pointee_align: None, + }, + ), + }, + ], + ret: ArgAbi { + layout: TyAndLayout { + ty: bool, + layout: Layout { + size: Size(1 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Scalar( + Initialized { + value: Int( + I8, + false, + ), + valid_range: 0..=1, + }, + ), + fields: Primitive, + largest_niche: Some( + Niche { + offset: Size(0 bytes), + value: Int( + I8, + false, + ), + valid_range: 0..=1, + }, + ), + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Direct( + ArgAttributes { + regular: NoUndef, + arg_ext: Zext, + pointee_size: Size(0 bytes), + pointee_align: None, + }, + ), + }, + c_variadic: false, + fixed_count: 1, + conv: Rust, + can_unwind: $SOME_BOOL, + } + --> $DIR/debug.rs:30:1 + | +LL | fn test(_x: u8) -> bool { + | ^^^^^^^^^^^^^^^^^^^^^^^ + +error: fn_abi_of(TestFnPtr) = FnAbi { + args: [ + ArgAbi { + layout: TyAndLayout { + ty: bool, + layout: Layout { + size: Size(1 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Scalar( + Initialized { + value: Int( + I8, + false, + ), + valid_range: 0..=1, + }, + ), + fields: Primitive, + largest_niche: Some( + Niche { + offset: Size(0 bytes), + value: Int( + I8, + false, + ), + valid_range: 0..=1, + }, + ), + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Direct( + ArgAttributes { + regular: NoUndef, + arg_ext: Zext, + pointee_size: Size(0 bytes), + pointee_align: None, + }, + ), + }, + ], + ret: ArgAbi { + layout: TyAndLayout { + ty: u8, + layout: Layout { + size: Size(1 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Scalar( + Initialized { + value: Int( + I8, + false, + ), + valid_range: 0..=255, + }, + ), + fields: Primitive, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Direct( + ArgAttributes { + regular: NoUndef, + arg_ext: None, + pointee_size: Size(0 bytes), + pointee_align: None, + }, + ), + }, + c_variadic: false, + fixed_count: 1, + conv: Rust, + can_unwind: $SOME_BOOL, + } + --> $DIR/debug.rs:36:1 + | +LL | type TestFnPtr = fn(bool) -> u8; + | ^^^^^^^^^^^^^^ + +error: fn_abi_of(test_generic) = FnAbi { + args: [ + ArgAbi { + layout: TyAndLayout { + ty: *const T, + layout: Layout { + size: $SOME_SIZE, + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Scalar( + Initialized { + value: Pointer( + AddressSpace( + 0, + ), + ), + valid_range: $FULL, + }, + ), + fields: Primitive, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Direct( + ArgAttributes { + regular: NoUndef, + arg_ext: None, + pointee_size: Size(0 bytes), + pointee_align: None, + }, + ), + }, + ], + ret: ArgAbi { + layout: TyAndLayout { + ty: (), + layout: Layout { + size: Size(0 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Memory { + sized: true, + }, + fields: Arbitrary { + offsets: [], + memory_index: [], + }, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Ignore, + }, + c_variadic: false, + fixed_count: 1, + conv: Rust, + can_unwind: $SOME_BOOL, + } + --> $DIR/debug.rs:39:1 + | +LL | fn test_generic<T>(_x: *const T) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: `#[rustc_abi]` can only be applied to function items, type aliases, and associated functions + --> $DIR/debug.rs:42:1 + | +LL | const C: () = (); + | ^^^^^^^^^^^ + +error: ABIs are not compatible + left ABI = FnAbi { + args: [ + ArgAbi { + layout: TyAndLayout { + ty: u8, + layout: Layout { + size: Size(1 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Scalar( + Initialized { + value: Int( + I8, + false, + ), + valid_range: 0..=255, + }, + ), + fields: Primitive, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Direct( + ArgAttributes { + regular: NoUndef, + arg_ext: Zext, + pointee_size: Size(0 bytes), + pointee_align: None, + }, + ), + }, + ], + ret: ArgAbi { + layout: TyAndLayout { + ty: (), + layout: Layout { + size: Size(0 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Memory { + sized: true, + }, + fields: Arbitrary { + offsets: [], + memory_index: [], + }, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Ignore, + }, + c_variadic: false, + fixed_count: 1, + conv: Rust, + can_unwind: $SOME_BOOL, + } + right ABI = FnAbi { + args: [ + ArgAbi { + layout: TyAndLayout { + ty: u32, + layout: Layout { + size: $SOME_SIZE, + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Scalar( + Initialized { + value: Int( + I32, + false, + ), + valid_range: $FULL, + }, + ), + fields: Primitive, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Direct( + ArgAttributes { + regular: NoUndef, + arg_ext: Sext, + pointee_size: Size(0 bytes), + pointee_align: None, + }, + ), + }, + ], + ret: ArgAbi { + layout: TyAndLayout { + ty: (), + layout: Layout { + size: Size(0 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Memory { + sized: true, + }, + fields: Arbitrary { + offsets: [], + memory_index: [], + }, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Ignore, + }, + c_variadic: false, + fixed_count: 1, + conv: Rust, + can_unwind: $SOME_BOOL, + } + --> $DIR/debug.rs:58:1 + | +LL | type TestAbiNe = (fn(u8), fn(u32)); + | ^^^^^^^^^^^^^^ + +error: ABIs are not compatible + left ABI = FnAbi { + args: [ + ArgAbi { + layout: TyAndLayout { + ty: [u8; 32], + layout: Layout { + size: Size(32 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Memory { + sized: true, + }, + fields: Array { + stride: Size(1 bytes), + count: 32, + }, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Indirect { + attrs: ArgAttributes { + regular: NoAlias | NoCapture | NonNull | NoUndef, + arg_ext: None, + pointee_size: Size(32 bytes), + pointee_align: Some( + Align(1 bytes), + ), + }, + meta_attrs: None, + on_stack: false, + }, + }, + ], + ret: ArgAbi { + layout: TyAndLayout { + ty: (), + layout: Layout { + size: Size(0 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Memory { + sized: true, + }, + fields: Arbitrary { + offsets: [], + memory_index: [], + }, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Ignore, + }, + c_variadic: false, + fixed_count: 1, + conv: Rust, + can_unwind: $SOME_BOOL, + } + right ABI = FnAbi { + args: [ + ArgAbi { + layout: TyAndLayout { + ty: [u32; 32], + layout: Layout { + size: Size(128 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Memory { + sized: true, + }, + fields: Array { + stride: Size(4 bytes), + count: 32, + }, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Indirect { + attrs: ArgAttributes { + regular: NoAlias | NoCapture | NonNull | NoUndef, + arg_ext: None, + pointee_size: Size(128 bytes), + pointee_align: Some( + Align(4 bytes), + ), + }, + meta_attrs: None, + on_stack: false, + }, + }, + ], + ret: ArgAbi { + layout: TyAndLayout { + ty: (), + layout: Layout { + size: Size(0 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Memory { + sized: true, + }, + fields: Arbitrary { + offsets: [], + memory_index: [], + }, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Ignore, + }, + c_variadic: false, + fixed_count: 1, + conv: Rust, + can_unwind: $SOME_BOOL, + } + --> $DIR/debug.rs:61:1 + | +LL | type TestAbiNeLarger = (fn([u8; 32]), fn([u32; 32])); + | ^^^^^^^^^^^^^^^^^^^^ + +error: ABIs are not compatible + left ABI = FnAbi { + args: [ + ArgAbi { + layout: TyAndLayout { + ty: f32, + layout: Layout { + size: $SOME_SIZE, + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Scalar( + Initialized { + value: Float( + F32, + ), + valid_range: $FULL, + }, + ), + fields: Primitive, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Direct( + ArgAttributes { + regular: NoUndef, + arg_ext: None, + pointee_size: Size(0 bytes), + pointee_align: None, + }, + ), + }, + ], + ret: ArgAbi { + layout: TyAndLayout { + ty: (), + layout: Layout { + size: Size(0 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Memory { + sized: true, + }, + fields: Arbitrary { + offsets: [], + memory_index: [], + }, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Ignore, + }, + c_variadic: false, + fixed_count: 1, + conv: Rust, + can_unwind: $SOME_BOOL, + } + right ABI = FnAbi { + args: [ + ArgAbi { + layout: TyAndLayout { + ty: u32, + layout: Layout { + size: $SOME_SIZE, + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Scalar( + Initialized { + value: Int( + I32, + false, + ), + valid_range: $FULL, + }, + ), + fields: Primitive, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Direct( + ArgAttributes { + regular: NoUndef, + arg_ext: Sext, + pointee_size: Size(0 bytes), + pointee_align: None, + }, + ), + }, + ], + ret: ArgAbi { + layout: TyAndLayout { + ty: (), + layout: Layout { + size: Size(0 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Memory { + sized: true, + }, + fields: Arbitrary { + offsets: [], + memory_index: [], + }, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Ignore, + }, + c_variadic: false, + fixed_count: 1, + conv: Rust, + can_unwind: $SOME_BOOL, + } + --> $DIR/debug.rs:64:1 + | +LL | type TestAbiNeFloat = (fn(f32), fn(u32)); + | ^^^^^^^^^^^^^^^^^^^ + +error: ABIs are not compatible + left ABI = FnAbi { + args: [ + ArgAbi { + layout: TyAndLayout { + ty: i32, + layout: Layout { + size: $SOME_SIZE, + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Scalar( + Initialized { + value: Int( + I32, + true, + ), + valid_range: $FULL, + }, + ), + fields: Primitive, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Direct( + ArgAttributes { + regular: NoUndef, + arg_ext: Sext, + pointee_size: Size(0 bytes), + pointee_align: None, + }, + ), + }, + ], + ret: ArgAbi { + layout: TyAndLayout { + ty: (), + layout: Layout { + size: Size(0 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Memory { + sized: true, + }, + fields: Arbitrary { + offsets: [], + memory_index: [], + }, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Ignore, + }, + c_variadic: false, + fixed_count: 1, + conv: Rust, + can_unwind: $SOME_BOOL, + } + right ABI = FnAbi { + args: [ + ArgAbi { + layout: TyAndLayout { + ty: u32, + layout: Layout { + size: $SOME_SIZE, + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Scalar( + Initialized { + value: Int( + I32, + false, + ), + valid_range: $FULL, + }, + ), + fields: Primitive, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Direct( + ArgAttributes { + regular: NoUndef, + arg_ext: Sext, + pointee_size: Size(0 bytes), + pointee_align: None, + }, + ), + }, + ], + ret: ArgAbi { + layout: TyAndLayout { + ty: (), + layout: Layout { + size: Size(0 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Memory { + sized: true, + }, + fields: Arbitrary { + offsets: [], + memory_index: [], + }, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Ignore, + }, + c_variadic: false, + fixed_count: 1, + conv: Rust, + can_unwind: $SOME_BOOL, + } + --> $DIR/debug.rs:68:1 + | +LL | type TestAbiNeSign = (fn(i32), fn(u32)); + | ^^^^^^^^^^^^^^^^^^ + +error[E0277]: the size for values of type `str` cannot be known at compilation time + --> $DIR/debug.rs:71:46 + | +LL | type TestAbiEqNonsense = (fn((str, str)), fn((str, str))); + | ^^^^^^^^^^ doesn't have a size known at compile-time + | + = help: the trait `Sized` is not implemented for `str` + = note: only the last element of a tuple may have a dynamically sized type + +error: unrecognized argument + --> $DIR/debug.rs:73:13 + | +LL | #[rustc_abi("assert_eq")] + | ^^^^^^^^^^^ + +error: `#[rustc_abi]` can only be applied to function items, type aliases, and associated functions + --> $DIR/debug.rs:46:5 + | +LL | const C: () = (); + | ^^^^^^^^^^^ + +error: fn_abi_of(assoc_test) = FnAbi { + args: [ + ArgAbi { + layout: TyAndLayout { + ty: &S, + layout: Layout { + size: $SOME_SIZE, + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Scalar( + Initialized { + value: Pointer( + AddressSpace( + 0, + ), + ), + valid_range: $NON_NULL, + }, + ), + fields: Primitive, + largest_niche: Some( + Niche { + offset: Size(0 bytes), + value: Pointer( + AddressSpace( + 0, + ), + ), + valid_range: $NON_NULL, + }, + ), + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Direct( + ArgAttributes { + regular: NoAlias | NonNull | ReadOnly | NoUndef | CapturesReadOnly, + arg_ext: None, + pointee_size: Size(2 bytes), + pointee_align: Some( + Align(2 bytes), + ), + }, + ), + }, + ], + ret: ArgAbi { + layout: TyAndLayout { + ty: (), + layout: Layout { + size: Size(0 bytes), + align: AbiAlign { + abi: $SOME_ALIGN, + }, + backend_repr: Memory { + sized: true, + }, + fields: Arbitrary { + offsets: [], + memory_index: [], + }, + largest_niche: None, + uninhabited: false, + variants: Single { + index: 0, + }, + max_repr_align: None, + unadjusted_abi_align: $SOME_ALIGN, + randomization_seed: $SEED, + }, + }, + mode: Ignore, + }, + c_variadic: false, + fixed_count: 1, + conv: Rust, + can_unwind: $SOME_BOOL, + } + --> $DIR/debug.rs:51:5 + | +LL | fn assoc_test(&self) {} + | ^^^^^^^^^^^^^^^^^^^^ + +error: aborting due to 12 previous errors + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/abi/debug.riscv64.stderr b/tests/ui/abi/debug.riscv64.stderr index 2417396de2f..ce8bd41f045 100644 --- a/tests/ui/abi/debug.riscv64.stderr +++ b/tests/ui/abi/debug.riscv64.stderr @@ -89,7 +89,7 @@ error: fn_abi_of(test) = FnAbi { conv: Rust, can_unwind: $SOME_BOOL, } - --> $DIR/debug.rs:27:1 + --> $DIR/debug.rs:30:1 | LL | fn test(_x: u8) -> bool { | ^^^^^^^^^^^^^^^^^^^^^^^ @@ -185,7 +185,7 @@ error: fn_abi_of(TestFnPtr) = FnAbi { conv: Rust, can_unwind: $SOME_BOOL, } - --> $DIR/debug.rs:33:1 + --> $DIR/debug.rs:36:1 | LL | type TestFnPtr = fn(bool) -> u8; | ^^^^^^^^^^^^^^ @@ -263,13 +263,13 @@ error: fn_abi_of(test_generic) = FnAbi { conv: Rust, can_unwind: $SOME_BOOL, } - --> $DIR/debug.rs:36:1 + --> $DIR/debug.rs:39:1 | LL | fn test_generic<T>(_x: *const T) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: `#[rustc_abi]` can only be applied to function items, type aliases, and associated functions - --> $DIR/debug.rs:39:1 + --> $DIR/debug.rs:42:1 | LL | const C: () = (); | ^^^^^^^^^^^ @@ -419,7 +419,7 @@ error: ABIs are not compatible conv: Rust, can_unwind: $SOME_BOOL, } - --> $DIR/debug.rs:55:1 + --> $DIR/debug.rs:58:1 | LL | type TestAbiNe = (fn(u8), fn(u32)); | ^^^^^^^^^^^^^^ @@ -571,7 +571,7 @@ error: ABIs are not compatible conv: Rust, can_unwind: $SOME_BOOL, } - --> $DIR/debug.rs:58:1 + --> $DIR/debug.rs:61:1 | LL | type TestAbiNeLarger = (fn([u8; 32]), fn([u32; 32])); | ^^^^^^^^^^^^^^^^^^^^ @@ -720,7 +720,7 @@ error: ABIs are not compatible conv: Rust, can_unwind: $SOME_BOOL, } - --> $DIR/debug.rs:61:1 + --> $DIR/debug.rs:64:1 | LL | type TestAbiNeFloat = (fn(f32), fn(u32)); | ^^^^^^^^^^^^^^^^^^^ @@ -870,13 +870,13 @@ error: ABIs are not compatible conv: Rust, can_unwind: $SOME_BOOL, } - --> $DIR/debug.rs:65:1 + --> $DIR/debug.rs:68:1 | LL | type TestAbiNeSign = (fn(i32), fn(u32)); | ^^^^^^^^^^^^^^^^^^ error[E0277]: the size for values of type `str` cannot be known at compilation time - --> $DIR/debug.rs:68:46 + --> $DIR/debug.rs:71:46 | LL | type TestAbiEqNonsense = (fn((str, str)), fn((str, str))); | ^^^^^^^^^^ doesn't have a size known at compile-time @@ -885,13 +885,13 @@ LL | type TestAbiEqNonsense = (fn((str, str)), fn((str, str))); = note: only the last element of a tuple may have a dynamically sized type error: unrecognized argument - --> $DIR/debug.rs:70:13 + --> $DIR/debug.rs:73:13 | LL | #[rustc_abi("assert_eq")] | ^^^^^^^^^^^ error: `#[rustc_abi]` can only be applied to function items, type aliases, and associated functions - --> $DIR/debug.rs:43:5 + --> $DIR/debug.rs:46:5 | LL | const C: () = (); | ^^^^^^^^^^^ @@ -939,7 +939,7 @@ error: fn_abi_of(assoc_test) = FnAbi { }, mode: Direct( ArgAttributes { - regular: NoAlias | NonNull | ReadOnly | NoUndef, + regular: NoAlias | NonNull | ReadOnly | NoUndef | CapturesReadOnly, arg_ext: None, pointee_size: Size(2 bytes), pointee_align: Some( @@ -981,7 +981,7 @@ error: fn_abi_of(assoc_test) = FnAbi { conv: Rust, can_unwind: $SOME_BOOL, } - --> $DIR/debug.rs:48:5 + --> $DIR/debug.rs:51:5 | LL | fn assoc_test(&self) {} | ^^^^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/abi/debug.rs b/tests/ui/abi/debug.rs index cc1589d8621..59c0908041d 100644 --- a/tests/ui/abi/debug.rs +++ b/tests/ui/abi/debug.rs @@ -8,10 +8,13 @@ //@ normalize-stderr: "(valid_range): [1-9]\.\.=(429496729[0-9]|1844674407370955161[0-9])" -> "$1: $$NON_NULL" // Some attributes are only computed for release builds: //@ compile-flags: -O -//@ revisions: generic riscv64 +//@ revisions: generic riscv64 loongarch64 //@ [riscv64] compile-flags: --target riscv64gc-unknown-linux-gnu //@ [riscv64] needs-llvm-components: riscv +//@ [loongarch64] compile-flags: --target loongarch64-unknown-linux-gnu +//@ [loongarch64] needs-llvm-components: loongarch //@ [generic] ignore-riscv64 +//@ [generic] ignore-loongarch64 #![feature(rustc_attrs)] #![crate_type = "lib"] #![feature(no_core)] diff --git a/tests/ui/abi/interrupt-invalid-signature.i686.stderr b/tests/ui/abi/interrupt-invalid-signature.i686.stderr index 86f2e097c37..df8e318bf0a 100644 --- a/tests/ui/abi/interrupt-invalid-signature.i686.stderr +++ b/tests/ui/abi/interrupt-invalid-signature.i686.stderr @@ -1,15 +1,31 @@ error: invalid signature for `extern "x86-interrupt"` function - --> $DIR/interrupt-invalid-signature.rs:83:40 + --> $DIR/interrupt-invalid-signature.rs:83:53 | -LL | extern "x86-interrupt" fn x86_ret() -> u8 { - | ^^ +LL | extern "x86-interrupt" fn x86_ret(_p: *const u8) -> u8 { + | ^^ | = note: functions with the "x86-interrupt" ABI cannot have a return type help: remove the return type - --> $DIR/interrupt-invalid-signature.rs:83:40 + --> $DIR/interrupt-invalid-signature.rs:83:53 | -LL | extern "x86-interrupt" fn x86_ret() -> u8 { - | ^^ +LL | extern "x86-interrupt" fn x86_ret(_p: *const u8) -> u8 { + | ^^ -error: aborting due to 1 previous error +error: invalid signature for `extern "x86-interrupt"` function + --> $DIR/interrupt-invalid-signature.rs:89:1 + | +LL | extern "x86-interrupt" fn x86_0() { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: functions with the "x86-interrupt" ABI must be have either 1 or 2 parameters (but found 0) + +error: invalid signature for `extern "x86-interrupt"` function + --> $DIR/interrupt-invalid-signature.rs:100:33 + | +LL | extern "x86-interrupt" fn x86_3(_p1: *const u8, _p2: *const u8, _p3: *const u8) { + | ^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^ + | + = note: functions with the "x86-interrupt" ABI must be have either 1 or 2 parameters (but found 3) + +error: aborting due to 3 previous errors diff --git a/tests/ui/abi/interrupt-invalid-signature.rs b/tests/ui/abi/interrupt-invalid-signature.rs index e389285b069..09bda0d5faf 100644 --- a/tests/ui/abi/interrupt-invalid-signature.rs +++ b/tests/ui/abi/interrupt-invalid-signature.rs @@ -80,11 +80,27 @@ extern "riscv-interrupt-s" fn riscv_s_ret() -> u8 { } #[cfg(any(x64,i686))] -extern "x86-interrupt" fn x86_ret() -> u8 { +extern "x86-interrupt" fn x86_ret(_p: *const u8) -> u8 { //[x64,i686]~^ ERROR invalid signature 1 } +#[cfg(any(x64,i686))] +extern "x86-interrupt" fn x86_0() { + //[x64,i686]~^ ERROR invalid signature +} + +#[cfg(any(x64,i686))] +extern "x86-interrupt" fn x86_1(_p1: *const u8) { } + +#[cfg(any(x64,i686))] +extern "x86-interrupt" fn x86_2(_p1: *const u8, _p2: *const u8) { } + +#[cfg(any(x64,i686))] +extern "x86-interrupt" fn x86_3(_p1: *const u8, _p2: *const u8, _p3: *const u8) { + //[x64,i686]~^ ERROR invalid signature +} + /* extern "interrupt" fnptrs with invalid signatures */ diff --git a/tests/ui/abi/interrupt-invalid-signature.x64.stderr b/tests/ui/abi/interrupt-invalid-signature.x64.stderr index 86f2e097c37..df8e318bf0a 100644 --- a/tests/ui/abi/interrupt-invalid-signature.x64.stderr +++ b/tests/ui/abi/interrupt-invalid-signature.x64.stderr @@ -1,15 +1,31 @@ error: invalid signature for `extern "x86-interrupt"` function - --> $DIR/interrupt-invalid-signature.rs:83:40 + --> $DIR/interrupt-invalid-signature.rs:83:53 | -LL | extern "x86-interrupt" fn x86_ret() -> u8 { - | ^^ +LL | extern "x86-interrupt" fn x86_ret(_p: *const u8) -> u8 { + | ^^ | = note: functions with the "x86-interrupt" ABI cannot have a return type help: remove the return type - --> $DIR/interrupt-invalid-signature.rs:83:40 + --> $DIR/interrupt-invalid-signature.rs:83:53 | -LL | extern "x86-interrupt" fn x86_ret() -> u8 { - | ^^ +LL | extern "x86-interrupt" fn x86_ret(_p: *const u8) -> u8 { + | ^^ -error: aborting due to 1 previous error +error: invalid signature for `extern "x86-interrupt"` function + --> $DIR/interrupt-invalid-signature.rs:89:1 + | +LL | extern "x86-interrupt" fn x86_0() { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: functions with the "x86-interrupt" ABI must be have either 1 or 2 parameters (but found 0) + +error: invalid signature for `extern "x86-interrupt"` function + --> $DIR/interrupt-invalid-signature.rs:100:33 + | +LL | extern "x86-interrupt" fn x86_3(_p1: *const u8, _p2: *const u8, _p3: *const u8) { + | ^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^ + | + = note: functions with the "x86-interrupt" ABI must be have either 1 or 2 parameters (but found 3) + +error: aborting due to 3 previous errors diff --git a/tests/ui/abi/interrupt-returns-never-or-unit.rs b/tests/ui/abi/interrupt-returns-never-or-unit.rs index 8e224229a0b..104b36363d0 100644 --- a/tests/ui/abi/interrupt-returns-never-or-unit.rs +++ b/tests/ui/abi/interrupt-returns-never-or-unit.rs @@ -56,7 +56,7 @@ extern "riscv-interrupt-s" fn riscv_s_ret_never() -> ! { } #[cfg(any(x64,i686))] -extern "x86-interrupt" fn x86_ret_never() -> ! { +extern "x86-interrupt" fn x86_ret_never(_p: *const u8) -> ! { loop {} } @@ -83,7 +83,7 @@ extern "riscv-interrupt-s" fn riscv_s_ret_unit() -> () { } #[cfg(any(x64,i686))] -extern "x86-interrupt" fn x86_ret_unit() -> () { +extern "x86-interrupt" fn x86_ret_unit(_x: *const u8) -> () { () } diff --git a/tests/ui/abi/simd-abi-checks-s390x.rs b/tests/ui/abi/simd-abi-checks-s390x.rs index 2d4eb7a350f..877a25e8b08 100644 --- a/tests/ui/abi/simd-abi-checks-s390x.rs +++ b/tests/ui/abi/simd-abi-checks-s390x.rs @@ -110,47 +110,47 @@ extern "C" fn vector_transparent_wrapper_ret_large( #[no_mangle] extern "C" fn vector_arg_small(x: i8x8) -> i64 { //~^ ERROR requires the `vector` target feature, which is not enabled - unsafe { *(&x as *const i8x8 as *const i64) } + unsafe { *(&raw const x as *const i64) } } #[no_mangle] extern "C" fn vector_arg(x: i8x16) -> i64 { //~^ ERROR requires the `vector` target feature, which is not enabled - unsafe { *(&x as *const i8x16 as *const i64) } + unsafe { *(&raw const x as *const i64) } } #[no_mangle] extern "C" fn vector_arg_large(x: i8x32) -> i64 { // Ok - unsafe { *(&x as *const i8x32 as *const i64) } + unsafe { *(&raw const x as *const i64) } } #[no_mangle] extern "C" fn vector_wrapper_arg_small(x: Wrapper<i8x8>) -> i64 { //~^ ERROR requires the `vector` target feature, which is not enabled - unsafe { *(&x as *const Wrapper<i8x8> as *const i64) } + unsafe { *(&raw const x as *const i64) } } #[no_mangle] extern "C" fn vector_wrapper_arg(x: Wrapper<i8x16>) -> i64 { //~^ ERROR requires the `vector` target feature, which is not enabled - unsafe { *(&x as *const Wrapper<i8x16> as *const i64) } + unsafe { *(&raw const x as *const i64) } } #[no_mangle] extern "C" fn vector_wrapper_arg_large(x: Wrapper<i8x32>) -> i64 { // Ok - unsafe { *(&x as *const Wrapper<i8x32> as *const i64) } + unsafe { *(&raw const x as *const i64) } } #[no_mangle] extern "C" fn vector_transparent_wrapper_arg_small(x: TransparentWrapper<i8x8>) -> i64 { //~^ ERROR requires the `vector` target feature, which is not enabled - unsafe { *(&x as *const TransparentWrapper<i8x8> as *const i64) } + unsafe { *(&raw const x as *const i64) } } #[no_mangle] extern "C" fn vector_transparent_wrapper_arg(x: TransparentWrapper<i8x16>) -> i64 { //~^ ERROR requires the `vector` target feature, which is not enabled - unsafe { *(&x as *const TransparentWrapper<i8x16> as *const i64) } + unsafe { *(&raw const x as *const i64) } } #[no_mangle] extern "C" fn vector_transparent_wrapper_arg_large(x: TransparentWrapper<i8x32>) -> i64 { // Ok - unsafe { *(&x as *const TransparentWrapper<i8x32> as *const i64) } + unsafe { *(&raw const x as *const i64) } } diff --git a/tests/ui/abi/unsupported.aarch64.stderr b/tests/ui/abi/unsupported.aarch64.stderr index 61d07f29fd7..f2b14e0707b 100644 --- a/tests/ui/abi/unsupported.aarch64.stderr +++ b/tests/ui/abi/unsupported.aarch64.stderr @@ -165,7 +165,7 @@ LL | fn cdecl_ptr(f: extern "cdecl" fn()) { = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #137018 <https://github.com/rust-lang/rust/issues/137018> = help: use `extern "C"` instead - = note: `#[warn(unsupported_calling_conventions)]` on by default + = note: `#[warn(unsupported_calling_conventions)]` (part of `#[warn(future_incompatible)]`) on by default warning: "cdecl" is not a supported ABI for the current target --> $DIR/unsupported.rs:104:1 diff --git a/tests/ui/abi/unsupported.arm.stderr b/tests/ui/abi/unsupported.arm.stderr index 37b6e2316b0..bc666b7ced1 100644 --- a/tests/ui/abi/unsupported.arm.stderr +++ b/tests/ui/abi/unsupported.arm.stderr @@ -147,7 +147,7 @@ LL | fn cdecl_ptr(f: extern "cdecl" fn()) { = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #137018 <https://github.com/rust-lang/rust/issues/137018> = help: use `extern "C"` instead - = note: `#[warn(unsupported_calling_conventions)]` on by default + = note: `#[warn(unsupported_calling_conventions)]` (part of `#[warn(future_incompatible)]`) on by default warning: "cdecl" is not a supported ABI for the current target --> $DIR/unsupported.rs:104:1 diff --git a/tests/ui/abi/unsupported.riscv32.stderr b/tests/ui/abi/unsupported.riscv32.stderr index d7eb222eb76..722b1ec7713 100644 --- a/tests/ui/abi/unsupported.riscv32.stderr +++ b/tests/ui/abi/unsupported.riscv32.stderr @@ -159,7 +159,7 @@ LL | fn cdecl_ptr(f: extern "cdecl" fn()) { = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #137018 <https://github.com/rust-lang/rust/issues/137018> = help: use `extern "C"` instead - = note: `#[warn(unsupported_calling_conventions)]` on by default + = note: `#[warn(unsupported_calling_conventions)]` (part of `#[warn(future_incompatible)]`) on by default warning: "cdecl" is not a supported ABI for the current target --> $DIR/unsupported.rs:104:1 diff --git a/tests/ui/abi/unsupported.riscv64.stderr b/tests/ui/abi/unsupported.riscv64.stderr index d7eb222eb76..722b1ec7713 100644 --- a/tests/ui/abi/unsupported.riscv64.stderr +++ b/tests/ui/abi/unsupported.riscv64.stderr @@ -159,7 +159,7 @@ LL | fn cdecl_ptr(f: extern "cdecl" fn()) { = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #137018 <https://github.com/rust-lang/rust/issues/137018> = help: use `extern "C"` instead - = note: `#[warn(unsupported_calling_conventions)]` on by default + = note: `#[warn(unsupported_calling_conventions)]` (part of `#[warn(future_incompatible)]`) on by default warning: "cdecl" is not a supported ABI for the current target --> $DIR/unsupported.rs:104:1 diff --git a/tests/ui/abi/unsupported.x64.stderr b/tests/ui/abi/unsupported.x64.stderr index cf04680b587..3bf19f9f19d 100644 --- a/tests/ui/abi/unsupported.x64.stderr +++ b/tests/ui/abi/unsupported.x64.stderr @@ -141,7 +141,7 @@ LL | fn cdecl_ptr(f: extern "cdecl" fn()) { = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #137018 <https://github.com/rust-lang/rust/issues/137018> = help: use `extern "C"` instead - = note: `#[warn(unsupported_calling_conventions)]` on by default + = note: `#[warn(unsupported_calling_conventions)]` (part of `#[warn(future_incompatible)]`) on by default warning: "cdecl" is not a supported ABI for the current target --> $DIR/unsupported.rs:104:1 diff --git a/tests/ui/abi/unsupported.x64_win.stderr b/tests/ui/abi/unsupported.x64_win.stderr index d383a4df732..70f63a14d76 100644 --- a/tests/ui/abi/unsupported.x64_win.stderr +++ b/tests/ui/abi/unsupported.x64_win.stderr @@ -109,7 +109,7 @@ LL | fn stdcall_ptr(f: extern "stdcall" fn()) { = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #137018 <https://github.com/rust-lang/rust/issues/137018> = help: if you need `extern "stdcall"` on win32 and `extern "C"` everywhere else, use `extern "system"` - = note: `#[warn(unsupported_calling_conventions)]` on by default + = note: `#[warn(unsupported_calling_conventions)]` (part of `#[warn(future_incompatible)]`) on by default warning: "stdcall" is not a supported ABI for the current target --> $DIR/unsupported.rs:87:1 diff --git a/tests/ui/issues/issue-8498.rs b/tests/ui/array-slice-vec/matching-on-vector-slice-option-8498.rs index 92904e2198f..e243a247ed5 100644 --- a/tests/ui/issues/issue-8498.rs +++ b/tests/ui/array-slice-vec/matching-on-vector-slice-option-8498.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/8498 //@ run-pass pub fn main() { diff --git a/tests/ui/issues/issue-7784.rs b/tests/ui/array-slice-vec/pattern-matching-fixed-length-vectors-7784.rs index 90b88ae5727..7d987e92b63 100644 --- a/tests/ui/issues/issue-7784.rs +++ b/tests/ui/array-slice-vec/pattern-matching-fixed-length-vectors-7784.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/7784 //@ run-pass use std::ops::Add; diff --git a/tests/ui/asm/naked-invalid-attr.stderr b/tests/ui/asm/naked-invalid-attr.stderr index 936a36cd92e..33bbfc885da 100644 --- a/tests/ui/asm/naked-invalid-attr.stderr +++ b/tests/ui/asm/naked-invalid-attr.stderr @@ -18,7 +18,7 @@ error: `#[naked]` attribute cannot be used on foreign functions LL | #[unsafe(naked)] | ^^^^^^^^^^^^^^^^ | - = help: `#[naked]` can be applied to methods, functions + = help: `#[naked]` can be applied to methods and functions error: `#[naked]` attribute cannot be used on structs --> $DIR/naked-invalid-attr.rs:13:1 @@ -42,7 +42,7 @@ error: `#[naked]` attribute cannot be used on required trait methods LL | #[unsafe(naked)] | ^^^^^^^^^^^^^^^^ | - = help: `#[naked]` can be applied to functions, inherent methods, provided trait methods, trait methods in impl blocks + = help: `#[naked]` can be applied to functions, inherent methods, provided trait methods, and trait methods in impl blocks error: `#[naked]` attribute cannot be used on closures --> $DIR/naked-invalid-attr.rs:51:5 @@ -50,7 +50,7 @@ error: `#[naked]` attribute cannot be used on closures LL | #[unsafe(naked)] | ^^^^^^^^^^^^^^^^ | - = help: `#[naked]` can be applied to methods, functions + = help: `#[naked]` can be applied to methods and functions error[E0736]: attribute incompatible with `#[unsafe(naked)]` --> $DIR/naked-invalid-attr.rs:56:3 diff --git a/tests/ui/issues/issue-78622.rs b/tests/ui/associated-consts/ambiguous-associated-type-error-78622.rs index c00fd266063..9763be1ecb2 100644 --- a/tests/ui/issues/issue-78622.rs +++ b/tests/ui/associated-consts/ambiguous-associated-type-error-78622.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/78622 #![crate_type = "lib"] struct S; diff --git a/tests/ui/issues/issue-78622.stderr b/tests/ui/associated-consts/ambiguous-associated-type-error-78622.stderr index 432913a0fc9..4dff1364af7 100644 --- a/tests/ui/issues/issue-78622.stderr +++ b/tests/ui/associated-consts/ambiguous-associated-type-error-78622.stderr @@ -1,5 +1,5 @@ error[E0223]: ambiguous associated type - --> $DIR/issue-78622.rs:5:5 + --> $DIR/ambiguous-associated-type-error-78622.rs:6:5 | LL | S::A::<f> {} | ^^^^ diff --git a/tests/ui/associated-consts/associated-const-type-parameters.stderr b/tests/ui/associated-consts/associated-const-type-parameters.stderr index 6ee2a5de1b6..c94cffd69c1 100644 --- a/tests/ui/associated-consts/associated-const-type-parameters.stderr +++ b/tests/ui/associated-consts/associated-const-type-parameters.stderr @@ -4,7 +4,7 @@ warning: trait `Bar` is never used LL | trait Bar: Foo { | ^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/associated-consts/issue-105330.stderr b/tests/ui/associated-consts/issue-105330.stderr index 72527193555..5d6dc48e36c 100644 --- a/tests/ui/associated-consts/issue-105330.stderr +++ b/tests/ui/associated-consts/issue-105330.stderr @@ -53,8 +53,13 @@ error[E0277]: the trait bound `Demo: TraitWAssocConst` is not satisfied --> $DIR/issue-105330.rs:12:11 | LL | foo::<Demo>()(); - | ^^^^ the trait `TraitWAssocConst` is not implemented for `Demo` + | ^^^^ unsatisfied trait bound | +help: the trait `TraitWAssocConst` is not implemented for `Demo` + --> $DIR/issue-105330.rs:4:1 + | +LL | pub struct Demo {} + | ^^^^^^^^^^^^^^^ note: required by a bound in `foo` --> $DIR/issue-105330.rs:11:11 | @@ -75,8 +80,13 @@ error[E0277]: the trait bound `Demo: TraitWAssocConst` is not satisfied --> $DIR/issue-105330.rs:20:11 | LL | foo::<Demo>(); - | ^^^^ the trait `TraitWAssocConst` is not implemented for `Demo` + | ^^^^ unsatisfied trait bound + | +help: the trait `TraitWAssocConst` is not implemented for `Demo` + --> $DIR/issue-105330.rs:4:1 | +LL | pub struct Demo {} + | ^^^^^^^^^^^^^^^ note: required by a bound in `foo` --> $DIR/issue-105330.rs:11:11 | diff --git a/tests/ui/associated-type-bounds/rpit.stderr b/tests/ui/associated-type-bounds/rpit.stderr index 1091a4c573b..4c959456932 100644 --- a/tests/ui/associated-type-bounds/rpit.stderr +++ b/tests/ui/associated-type-bounds/rpit.stderr @@ -6,7 +6,7 @@ LL | trait Tr2<'a> { fn tr2(self) -> &'a Self; } | | | method in this trait | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/associated-types/associated-types-issue-20220.stderr b/tests/ui/associated-types/associated-types-issue-20220.stderr index c682f46e140..572889bbe74 100644 --- a/tests/ui/associated-types/associated-types-issue-20220.stderr +++ b/tests/ui/associated-types/associated-types-issue-20220.stderr @@ -4,7 +4,7 @@ warning: trait `IntoIteratorX` is never used LL | trait IntoIteratorX { | ^^^^^^^^^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/associated-types/associated-types-nested-projections.stderr b/tests/ui/associated-types/associated-types-nested-projections.stderr index 1b69fcfacf5..e360d337639 100644 --- a/tests/ui/associated-types/associated-types-nested-projections.stderr +++ b/tests/ui/associated-types/associated-types-nested-projections.stderr @@ -7,7 +7,7 @@ LL | trait IntoIterator { LL | fn into_iter(self) -> Self::Iter; | ^^^^^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/associated-types/associated-types-projection-from-known-type-in-impl.stderr b/tests/ui/associated-types/associated-types-projection-from-known-type-in-impl.stderr index c26ed79a026..ddfe9eb6967 100644 --- a/tests/ui/associated-types/associated-types-projection-from-known-type-in-impl.stderr +++ b/tests/ui/associated-types/associated-types-projection-from-known-type-in-impl.stderr @@ -7,7 +7,7 @@ LL | trait Int LL | fn dummy(&self) { } | ^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/associated-types/defaults-suitability.current.stderr b/tests/ui/associated-types/defaults-suitability.current.stderr index 5e19674250f..0018181f480 100644 --- a/tests/ui/associated-types/defaults-suitability.current.stderr +++ b/tests/ui/associated-types/defaults-suitability.current.stderr @@ -73,8 +73,13 @@ error[E0277]: the trait bound `NotClone: IsU8<NotClone>` is not satisfied --> $DIR/defaults-suitability.rs:59:18 | LL | type Assoc = NotClone; - | ^^^^^^^^ the trait `IsU8<NotClone>` is not implemented for `NotClone` + | ^^^^^^^^ unsatisfied trait bound | +help: the trait `IsU8<NotClone>` is not implemented for `NotClone` + --> $DIR/defaults-suitability.rs:12:1 + | +LL | struct NotClone; + | ^^^^^^^^^^^^^^^ note: required by a bound in `D::Assoc` --> $DIR/defaults-suitability.rs:56:18 | diff --git a/tests/ui/associated-types/defaults-suitability.next.stderr b/tests/ui/associated-types/defaults-suitability.next.stderr index 5e19674250f..0018181f480 100644 --- a/tests/ui/associated-types/defaults-suitability.next.stderr +++ b/tests/ui/associated-types/defaults-suitability.next.stderr @@ -73,8 +73,13 @@ error[E0277]: the trait bound `NotClone: IsU8<NotClone>` is not satisfied --> $DIR/defaults-suitability.rs:59:18 | LL | type Assoc = NotClone; - | ^^^^^^^^ the trait `IsU8<NotClone>` is not implemented for `NotClone` + | ^^^^^^^^ unsatisfied trait bound | +help: the trait `IsU8<NotClone>` is not implemented for `NotClone` + --> $DIR/defaults-suitability.rs:12:1 + | +LL | struct NotClone; + | ^^^^^^^^^^^^^^^ note: required by a bound in `D::Assoc` --> $DIR/defaults-suitability.rs:56:18 | diff --git a/tests/ui/associated-types/issue-64855.stderr b/tests/ui/associated-types/issue-64855.stderr index d8ba1a9d07e..4358ab47365 100644 --- a/tests/ui/associated-types/issue-64855.stderr +++ b/tests/ui/associated-types/issue-64855.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `Bar<T>: Foo` is not satisfied --> $DIR/issue-64855.rs:9:19 | LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ; - | ^^^^^^^^^^^^^^^^^^^ the trait `Foo` is not implemented for `Bar<T>` + | ^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | +help: the trait `Foo` is not implemented for `Bar<T>` + --> $DIR/issue-64855.rs:9:1 + | +LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ; + | ^^^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/issue-64855.rs:5:1 | diff --git a/tests/ui/associated-types/issue-65774-1.stderr b/tests/ui/associated-types/issue-65774-1.stderr index 9c77a25c432..3c8da092158 100644 --- a/tests/ui/associated-types/issue-65774-1.stderr +++ b/tests/ui/associated-types/issue-65774-1.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `T: MyDisplay` is not satisfied --> $DIR/issue-65774-1.rs:10:33 | LL | type MpuConfig: MyDisplay = T; - | ^ the trait `MyDisplay` is not implemented for `T` + | ^ unsatisfied trait bound | +help: the trait `MyDisplay` is not implemented for `T` + --> $DIR/issue-65774-1.rs:7:1 + | +LL | struct T; + | ^^^^^^^^ = help: the trait `MyDisplay` is implemented for `&'a mut T` note: required by a bound in `MPU::MpuConfig` --> $DIR/issue-65774-1.rs:10:21 @@ -15,8 +20,13 @@ error[E0277]: the trait bound `T: MyDisplay` is not satisfied --> $DIR/issue-65774-1.rs:44:76 | LL | let closure = |config: &mut <S as MPU>::MpuConfig| writer.my_write(&config); - | ^^^^^^^ the trait `MyDisplay` is not implemented for `T` + | ^^^^^^^ unsatisfied trait bound + | +help: the trait `MyDisplay` is not implemented for `T` + --> $DIR/issue-65774-1.rs:7:1 | +LL | struct T; + | ^^^^^^^^ = help: the trait `MyDisplay` is implemented for `&'a mut T` note: required for `&mut T` to implement `MyDisplay` --> $DIR/issue-65774-1.rs:5:24 diff --git a/tests/ui/associated-types/issue-65774-2.stderr b/tests/ui/associated-types/issue-65774-2.stderr index ca8a727f0fe..82210b84992 100644 --- a/tests/ui/associated-types/issue-65774-2.stderr +++ b/tests/ui/associated-types/issue-65774-2.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `T: MyDisplay` is not satisfied --> $DIR/issue-65774-2.rs:10:33 | LL | type MpuConfig: MyDisplay = T; - | ^ the trait `MyDisplay` is not implemented for `T` + | ^ unsatisfied trait bound | +help: the trait `MyDisplay` is not implemented for `T` + --> $DIR/issue-65774-2.rs:7:1 + | +LL | struct T; + | ^^^^^^^^ = help: the trait `MyDisplay` is implemented for `&'a mut T` note: required by a bound in `MPU::MpuConfig` --> $DIR/issue-65774-2.rs:10:21 @@ -15,8 +20,13 @@ error[E0277]: the trait bound `T: MyDisplay` is not satisfied --> $DIR/issue-65774-2.rs:39:25 | LL | writer.my_write(valref) - | ^^^^^^ the trait `MyDisplay` is not implemented for `T` + | ^^^^^^ unsatisfied trait bound + | +help: the trait `MyDisplay` is not implemented for `T` + --> $DIR/issue-65774-2.rs:7:1 | +LL | struct T; + | ^^^^^^^^ = help: the trait `MyDisplay` is implemented for `&'a mut T` = note: required for the cast from `&mut T` to `&dyn MyDisplay` diff --git a/tests/ui/async-await/async-borrowck-escaping-block-error.stderr b/tests/ui/async-await/async-borrowck-escaping-block-error.stderr index 8410e7eca57..6ea03c99aa0 100644 --- a/tests/ui/async-await/async-borrowck-escaping-block-error.stderr +++ b/tests/ui/async-await/async-borrowck-escaping-block-error.stderr @@ -6,11 +6,7 @@ LL | Box::new(async { x } ) | | | may outlive borrowed value `x` | -note: async block is returned here - --> $DIR/async-borrowck-escaping-block-error.rs:6:5 - | -LL | Box::new(async { x } ) - | ^^^^^^^^^^^^^^^^^^^^^^ + = note: async blocks are not executed immediately and must either take a reference or ownership of outside variables they use help: to force the async block to take ownership of `x` (and any other referenced variables), use the `move` keyword | LL | Box::new(async move { x } ) diff --git a/tests/ui/async-await/async-closures/type-name.rs b/tests/ui/async-await/async-closures/type-name.rs new file mode 100644 index 00000000000..12daad5a609 --- /dev/null +++ b/tests/ui/async-await/async-closures/type-name.rs @@ -0,0 +1,18 @@ +//@ run-pass +//@ edition: 2024 + +fn once<F: FnOnce() -> T, T>(f: F) -> T { + f() +} + +fn main() { + let closure = async || {}; + + // Name of future when called normally. + let name = std::any::type_name_of_val(&closure()); + assert_eq!(name, "type_name::main::{{closure}}::{{closure}}"); + + // Name of future when closure is called via its FnOnce shim. + let name = std::any::type_name_of_val(&once(closure)); + assert_eq!(name, "type_name::main::{{closure}}::{{closure}}::{{call_once}}"); +} diff --git a/tests/ui/async-await/async-fn/impl-header.stderr b/tests/ui/async-await/async-fn/impl-header.stderr index 2fc7a900a1e..d0cf0d822f2 100644 --- a/tests/ui/async-await/async-fn/impl-header.stderr +++ b/tests/ui/async-await/async-fn/impl-header.stderr @@ -36,7 +36,11 @@ error[E0277]: expected a `FnMut()` closure, found `F` LL | impl async Fn<()> for F {} | ^ expected an `FnMut()` closure, found `F` | - = help: the trait `FnMut()` is not implemented for `F` +help: the trait `FnMut()` is not implemented for `F` + --> $DIR/impl-header.rs:3:1 + | +LL | struct F; + | ^^^^^^^^ = note: wrap the `F` in a closure with no arguments: `|| { /* code */ }` note: required by a bound in `Fn` --> $SRC_DIR/core/src/ops/function.rs:LL:COL diff --git a/tests/ui/async-await/issue-61076.rs b/tests/ui/async-await/issue-61076.rs index f78abfd6d0f..0a679a95970 100644 --- a/tests/ui/async-await/issue-61076.rs +++ b/tests/ui/async-await/issue-61076.rs @@ -4,7 +4,7 @@ use core::future::Future; use core::pin::Pin; use core::task::{Context, Poll}; -struct T; +struct T; //~ HELP the trait `Try` is not implemented for `T` struct Tuple(i32); @@ -61,11 +61,9 @@ async fn baz() -> Result<(), ()> { let t = T; t?; //~ ERROR the `?` operator can only be applied to values that implement `Try` //~^ NOTE the `?` operator cannot be applied to type `T` - //~| HELP the trait `Try` is not implemented for `T` //~| HELP consider `await`ing on the `Future` //~| NOTE in this expansion of desugaring of operator `?` //~| NOTE in this expansion of desugaring of operator `?` - //~| NOTE in this expansion of desugaring of operator `?` let _: i32 = tuple().0; //~ ERROR no field `0` diff --git a/tests/ui/async-await/issue-61076.stderr b/tests/ui/async-await/issue-61076.stderr index b8478c8d138..7d46abe4a66 100644 --- a/tests/ui/async-await/issue-61076.stderr +++ b/tests/ui/async-await/issue-61076.stderr @@ -16,14 +16,18 @@ error[E0277]: the `?` operator can only be applied to values that implement `Try LL | t?; | ^^ the `?` operator cannot be applied to type `T` | - = help: the trait `Try` is not implemented for `T` +help: the trait `Try` is not implemented for `T` + --> $DIR/issue-61076.rs:7:1 + | +LL | struct T; + | ^^^^^^^^ help: consider `await`ing on the `Future` | LL | t.await?; | ++++++ error[E0609]: no field `0` on type `impl Future<Output = Tuple>` - --> $DIR/issue-61076.rs:71:26 + --> $DIR/issue-61076.rs:69:26 | LL | let _: i32 = tuple().0; | ^ field not available in `impl Future`, but it is available in its `Output` @@ -34,7 +38,7 @@ LL | let _: i32 = tuple().await.0; | ++++++ error[E0609]: no field `a` on type `impl Future<Output = Struct>` - --> $DIR/issue-61076.rs:75:28 + --> $DIR/issue-61076.rs:73:28 | LL | let _: i32 = struct_().a; | ^ field not available in `impl Future`, but it is available in its `Output` @@ -45,7 +49,7 @@ LL | let _: i32 = struct_().await.a; | ++++++ error[E0599]: no method named `method` found for opaque type `impl Future<Output = Struct>` in the current scope - --> $DIR/issue-61076.rs:79:15 + --> $DIR/issue-61076.rs:77:15 | LL | struct_().method(); | ^^^^^^ method not found in `impl Future<Output = Struct>` @@ -56,7 +60,7 @@ LL | struct_().await.method(); | ++++++ error[E0308]: mismatched types - --> $DIR/issue-61076.rs:88:9 + --> $DIR/issue-61076.rs:86:9 | LL | match tuple() { | ------- this expression has type `impl Future<Output = Tuple>` diff --git a/tests/ui/async-await/issue-64130-1-sync.stderr b/tests/ui/async-await/issue-64130-1-sync.stderr index 5428d7ef71b..6bc4810daad 100644 --- a/tests/ui/async-await/issue-64130-1-sync.stderr +++ b/tests/ui/async-await/issue-64130-1-sync.stderr @@ -4,7 +4,11 @@ error: future cannot be shared between threads safely LL | is_sync(bar()); | ^^^^^ future returned by `bar` is not `Sync` | - = help: within `impl Future<Output = ()>`, the trait `Sync` is not implemented for `Foo` +help: within `impl Future<Output = ()>`, the trait `Sync` is not implemented for `Foo` + --> $DIR/issue-64130-1-sync.rs:7:1 + | +LL | struct Foo; + | ^^^^^^^^^^ note: future is not `Sync` as this value is used across an await --> $DIR/issue-64130-1-sync.rs:15:11 | diff --git a/tests/ui/async-await/issue-64130-2-send.stderr b/tests/ui/async-await/issue-64130-2-send.stderr index f05e954d2d7..99c249843b8 100644 --- a/tests/ui/async-await/issue-64130-2-send.stderr +++ b/tests/ui/async-await/issue-64130-2-send.stderr @@ -4,7 +4,11 @@ error: future cannot be sent between threads safely LL | is_send(bar()); | ^^^^^ future returned by `bar` is not `Send` | - = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Foo` +help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Foo` + --> $DIR/issue-64130-2-send.rs:7:1 + | +LL | struct Foo; + | ^^^^^^^^^^ note: future is not `Send` as this value is used across an await --> $DIR/issue-64130-2-send.rs:15:11 | diff --git a/tests/ui/async-await/issue-64130-3-other.stderr b/tests/ui/async-await/issue-64130-3-other.stderr index 3ac30bdc23e..d683366ed47 100644 --- a/tests/ui/async-await/issue-64130-3-other.stderr +++ b/tests/ui/async-await/issue-64130-3-other.stderr @@ -5,8 +5,13 @@ LL | async fn bar() { | -------------- within this `impl Future<Output = ()>` ... LL | is_qux(bar()); - | ^^^^^ within `impl Future<Output = ()>`, the trait `Qux` is not implemented for `Foo` + | ^^^^^ unsatisfied trait bound | +help: within `impl Future<Output = ()>`, the trait `Qux` is not implemented for `Foo` + --> $DIR/issue-64130-3-other.rs:10:1 + | +LL | struct Foo; + | ^^^^^^^^^^ note: future does not implement `Qux` as this value is used across an await --> $DIR/issue-64130-3-other.rs:18:11 | diff --git a/tests/ui/async-await/partial-drop-partial-reinit.stderr b/tests/ui/async-await/partial-drop-partial-reinit.stderr index 042ed18984e..cef835f7aed 100644 --- a/tests/ui/async-await/partial-drop-partial-reinit.stderr +++ b/tests/ui/async-await/partial-drop-partial-reinit.stderr @@ -9,7 +9,11 @@ LL | gimme_send(foo()); LL | async fn foo() { | -------------- within this `impl Future<Output = ()>` | - = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `NotSend` +help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `NotSend` + --> $DIR/partial-drop-partial-reinit.rs:19:1 + | +LL | struct NotSend {} + | ^^^^^^^^^^^^^^ = note: required because it appears within the type `(NotSend,)` note: required because it's used within this `async` fn body --> $DIR/partial-drop-partial-reinit.rs:27:16 diff --git a/tests/ui/async-await/recursive-async-auto-trait-overflow-only-parent-args.rs b/tests/ui/async-await/recursive-async-auto-trait-overflow-only-parent-args.rs new file mode 100644 index 00000000000..9681f66412a --- /dev/null +++ b/tests/ui/async-await/recursive-async-auto-trait-overflow-only-parent-args.rs @@ -0,0 +1,17 @@ +// Regression test for #145288. This is the same issue as #145151 +// which we fixed in #145194. However in that PR we accidentally created +// a `CoroutineWitness` which referenced all generic arguments of the +// coroutine, including upvars and the signature. + +//@ edition: 2024 +//@ check-pass + +async fn process<'a>(x: &'a u32) { + Box::pin(process(x)).await; +} + +fn require_send(_: impl Send) {} + +fn main() { + require_send(process(&1)); +} diff --git a/tests/ui/attributes/attr-on-mac-call.rs b/tests/ui/attributes/attr-on-mac-call.rs new file mode 100644 index 00000000000..a23ced123ef --- /dev/null +++ b/tests/ui/attributes/attr-on-mac-call.rs @@ -0,0 +1,73 @@ +//@ check-pass +// Regression test for https://github.com/rust-lang/rust/issues/145779 +#![warn(unused_attributes)] + +fn main() { + #[export_name = "x"] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[unsafe(naked)] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[track_caller] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[used] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[target_feature(enable = "x")] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[deprecated] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[inline] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[link_name = "x"] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[link_section = "x"] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[link_ordinal(42)] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[non_exhaustive] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[proc_macro] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[cold] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[no_mangle] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[deprecated] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[automatically_derived] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[macro_use] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[must_use] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[no_implicit_prelude] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[path = ""] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[ignore] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + #[should_panic] + //~^ WARN attribute cannot be used on macro calls + //~| WARN previously accepted + unreachable!(); +} diff --git a/tests/ui/attributes/attr-on-mac-call.stderr b/tests/ui/attributes/attr-on-mac-call.stderr new file mode 100644 index 00000000000..a08d3059168 --- /dev/null +++ b/tests/ui/attributes/attr-on-mac-call.stderr @@ -0,0 +1,205 @@ +warning: `#[export_name]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:6:5 + | +LL | #[export_name = "x"] + | ^^^^^^^^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[export_name]` can be applied to functions and statics +note: the lint level is defined here + --> $DIR/attr-on-mac-call.rs:3:9 + | +LL | #![warn(unused_attributes)] + | ^^^^^^^^^^^^^^^^^ + +warning: `#[naked]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:9:5 + | +LL | #[unsafe(naked)] + | ^^^^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[naked]` can only be applied to functions + +warning: `#[track_caller]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:12:5 + | +LL | #[track_caller] + | ^^^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[track_caller]` can only be applied to functions + +warning: `#[used]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:15:5 + | +LL | #[used] + | ^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[used]` can only be applied to statics + +warning: `#[target_feature]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:18:5 + | +LL | #[target_feature(enable = "x")] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[target_feature]` can only be applied to functions + +warning: `#[deprecated]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:21:5 + | +LL | #[deprecated] + | ^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[deprecated]` can be applied to functions, data types, modules, unions, constants, statics, macro defs, type aliases, use statements, foreign statics, struct fields, traits, associated types, associated consts, enum variants, inherent impl blocks, and crates + +warning: `#[inline]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:24:5 + | +LL | #[inline] + | ^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[inline]` can only be applied to functions + +warning: `#[link_name]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:27:5 + | +LL | #[link_name = "x"] + | ^^^^^^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[link_name]` can be applied to foreign functions and foreign statics + +warning: `#[link_section]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:30:5 + | +LL | #[link_section = "x"] + | ^^^^^^^^^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[link_section]` can be applied to statics and functions + +warning: `#[link_ordinal]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:33:5 + | +LL | #[link_ordinal(42)] + | ^^^^^^^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[link_ordinal]` can be applied to foreign functions and foreign statics + +warning: `#[non_exhaustive]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:36:5 + | +LL | #[non_exhaustive] + | ^^^^^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[non_exhaustive]` can be applied to data types and enum variants + +warning: `#[proc_macro]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:39:5 + | +LL | #[proc_macro] + | ^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[proc_macro]` can only be applied to functions + +warning: `#[cold]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:42:5 + | +LL | #[cold] + | ^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[cold]` can only be applied to functions + +warning: `#[no_mangle]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:45:5 + | +LL | #[no_mangle] + | ^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[no_mangle]` can be applied to functions and statics + +warning: `#[deprecated]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:48:5 + | +LL | #[deprecated] + | ^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[deprecated]` can be applied to functions, data types, modules, unions, constants, statics, macro defs, type aliases, use statements, foreign statics, struct fields, traits, associated types, associated consts, enum variants, inherent impl blocks, and crates + +warning: `#[automatically_derived]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:51:5 + | +LL | #[automatically_derived] + | ^^^^^^^^^^^^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[automatically_derived]` can only be applied to trait impl blocks + +warning: `#[macro_use]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:54:5 + | +LL | #[macro_use] + | ^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[macro_use]` can be applied to modules, extern crates, and crates + +warning: `#[must_use]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:57:5 + | +LL | #[must_use] + | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits + +warning: `#[no_implicit_prelude]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:60:5 + | +LL | #[no_implicit_prelude] + | ^^^^^^^^^^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[no_implicit_prelude]` can be applied to modules and crates + +warning: `#[path]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:63:5 + | +LL | #[path = ""] + | ^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[path]` can only be applied to modules + +warning: `#[ignore]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:66:5 + | +LL | #[ignore] + | ^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[ignore]` can only be applied to functions + +warning: `#[should_panic]` attribute cannot be used on macro calls + --> $DIR/attr-on-mac-call.rs:69:5 + | +LL | #[should_panic] + | ^^^^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[should_panic]` can only be applied to functions + +warning: 22 warnings emitted + diff --git a/tests/ui/attributes/crate-name-empty.stderr b/tests/ui/attributes/crate-name-empty.stderr index 509a42d05f7..31d9dd0e948 100644 --- a/tests/ui/attributes/crate-name-empty.stderr +++ b/tests/ui/attributes/crate-name-empty.stderr @@ -1,8 +1,8 @@ error: crate name must not be empty - --> $DIR/crate-name-empty.rs:3:1 + --> $DIR/crate-name-empty.rs:3:17 | LL | #![crate_name = ""] - | ^^^^^^^^^^^^^^^^^^^ + | ^^ error: aborting due to 1 previous error diff --git a/tests/ui/attributes/crate-name-macro-call.rs b/tests/ui/attributes/crate-name-macro-call.rs index 1aae2e506e2..61076349cc3 100644 --- a/tests/ui/attributes/crate-name-macro-call.rs +++ b/tests/ui/attributes/crate-name-macro-call.rs @@ -1,6 +1,6 @@ // issue: rust-lang/rust#122001 // Ensure we reject macro calls inside `#![crate_name]` as their result wouldn't get honored anyway. -#![crate_name = concat!("my", "crate")] //~ ERROR malformed `crate_name` attribute input +#![crate_name = concat!("my", "crate")] //~ ERROR attribute value must be a literal fn main() {} diff --git a/tests/ui/attributes/crate-name-macro-call.stderr b/tests/ui/attributes/crate-name-macro-call.stderr index 56827aa11a4..e988b8461d7 100644 --- a/tests/ui/attributes/crate-name-macro-call.stderr +++ b/tests/ui/attributes/crate-name-macro-call.stderr @@ -1,10 +1,8 @@ -error: malformed `crate_name` attribute input - --> $DIR/crate-name-macro-call.rs:4:1 +error: attribute value must be a literal + --> $DIR/crate-name-macro-call.rs:4:17 | LL | #![crate_name = concat!("my", "crate")] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#![crate_name = "name"]` - | - = note: for more information, visit <https://doc.rust-lang.org/reference/crates-and-source-files.html#the-crate_name-attribute> + | ^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to 1 previous error diff --git a/tests/ui/attributes/crate-name-mismatch.stderr b/tests/ui/attributes/crate-name-mismatch.stderr index 4021fbe7c18..6416ad2d41a 100644 --- a/tests/ui/attributes/crate-name-mismatch.stderr +++ b/tests/ui/attributes/crate-name-mismatch.stderr @@ -1,8 +1,8 @@ error: `--crate-name` and `#[crate_name]` are required to match, but `foo` != `bar` - --> $DIR/crate-name-mismatch.rs:5:1 + --> $DIR/crate-name-mismatch.rs:5:17 | LL | #![crate_name = "bar"] - | ^^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^ error: aborting due to 1 previous error diff --git a/tests/ui/issues/issue-78957.rs b/tests/ui/attributes/invalid-attributes-on-const-params-78957.rs index 2ff92612e18..106b9ae2690 100644 --- a/tests/ui/issues/issue-78957.rs +++ b/tests/ui/attributes/invalid-attributes-on-const-params-78957.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/78957 #![deny(unused_attributes)] use std::marker::PhantomData; diff --git a/tests/ui/issues/issue-78957.stderr b/tests/ui/attributes/invalid-attributes-on-const-params-78957.stderr index d271b1840fb..f8010b4ea68 100644 --- a/tests/ui/issues/issue-78957.stderr +++ b/tests/ui/attributes/invalid-attributes-on-const-params-78957.stderr @@ -1,5 +1,5 @@ error: `#[inline]` attribute cannot be used on function params - --> $DIR/issue-78957.rs:5:16 + --> $DIR/invalid-attributes-on-const-params-78957.rs:6:16 | LL | pub struct Foo<#[inline] const N: usize>; | ^^^^^^^^^ @@ -7,7 +7,7 @@ LL | pub struct Foo<#[inline] const N: usize>; = help: `#[inline]` can only be applied to functions error: `#[inline]` attribute cannot be used on function params - --> $DIR/issue-78957.rs:13:17 + --> $DIR/invalid-attributes-on-const-params-78957.rs:14:17 | LL | pub struct Foo2<#[inline] 'a>(PhantomData<&'a ()>); | ^^^^^^^^^ @@ -15,7 +15,7 @@ LL | pub struct Foo2<#[inline] 'a>(PhantomData<&'a ()>); = help: `#[inline]` can only be applied to functions error: `#[inline]` attribute cannot be used on function params - --> $DIR/issue-78957.rs:21:17 + --> $DIR/invalid-attributes-on-const-params-78957.rs:22:17 | LL | pub struct Foo3<#[inline] T>(PhantomData<T>); | ^^^^^^^^^ @@ -23,25 +23,25 @@ LL | pub struct Foo3<#[inline] T>(PhantomData<T>); = help: `#[inline]` can only be applied to functions error[E0517]: attribute should be applied to a struct, enum, or union - --> $DIR/issue-78957.rs:10:23 + --> $DIR/invalid-attributes-on-const-params-78957.rs:11:23 | LL | pub struct Baz<#[repr(C)] const N: usize>; | ^ -------------- not a struct, enum, or union error[E0517]: attribute should be applied to a struct, enum, or union - --> $DIR/issue-78957.rs:18:24 + --> $DIR/invalid-attributes-on-const-params-78957.rs:19:24 | LL | pub struct Baz2<#[repr(C)] 'a>(PhantomData<&'a ()>); | ^ -- not a struct, enum, or union error[E0517]: attribute should be applied to a struct, enum, or union - --> $DIR/issue-78957.rs:26:24 + --> $DIR/invalid-attributes-on-const-params-78957.rs:27:24 | LL | pub struct Baz3<#[repr(C)] T>(PhantomData<T>); | ^ - not a struct, enum, or union error: `#[cold]` attribute cannot be used on function params - --> $DIR/issue-78957.rs:7:16 + --> $DIR/invalid-attributes-on-const-params-78957.rs:8:16 | LL | pub struct Bar<#[cold] const N: usize>; | ^^^^^^^ @@ -49,13 +49,13 @@ LL | pub struct Bar<#[cold] const N: usize>; = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = help: `#[cold]` can only be applied to functions note: the lint level is defined here - --> $DIR/issue-78957.rs:1:9 + --> $DIR/invalid-attributes-on-const-params-78957.rs:2:9 | LL | #![deny(unused_attributes)] | ^^^^^^^^^^^^^^^^^ error: `#[cold]` attribute cannot be used on function params - --> $DIR/issue-78957.rs:15:17 + --> $DIR/invalid-attributes-on-const-params-78957.rs:16:17 | LL | pub struct Bar2<#[cold] 'a>(PhantomData<&'a ()>); | ^^^^^^^ @@ -64,7 +64,7 @@ LL | pub struct Bar2<#[cold] 'a>(PhantomData<&'a ()>); = help: `#[cold]` can only be applied to functions error: `#[cold]` attribute cannot be used on function params - --> $DIR/issue-78957.rs:23:17 + --> $DIR/invalid-attributes-on-const-params-78957.rs:24:17 | LL | pub struct Bar3<#[cold] T>(PhantomData<T>); | ^^^^^^^ diff --git a/tests/ui/attributes/key-value-expansion-scope.stderr b/tests/ui/attributes/key-value-expansion-scope.stderr index 29b48ca4ce6..71a83d80617 100644 --- a/tests/ui/attributes/key-value-expansion-scope.stderr +++ b/tests/ui/attributes/key-value-expansion-scope.stderr @@ -135,7 +135,7 @@ LL | #![doc = in_root!()] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 <https://github.com/rust-lang/rust/issues/124535> = help: import `macro_rules` with `use` to make it callable above its definition - = note: `#[deny(out_of_scope_macro_calls)]` on by default + = note: `#[deny(out_of_scope_macro_calls)]` (part of `#[deny(future_incompatible)]`) on by default error: cannot find macro `in_mod_escape` in the current scope when looking from the crate root --> $DIR/key-value-expansion-scope.rs:4:10 @@ -199,7 +199,7 @@ LL | #![doc = in_root!()] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 <https://github.com/rust-lang/rust/issues/124535> = help: import `macro_rules` with `use` to make it callable above its definition - = note: `#[deny(out_of_scope_macro_calls)]` on by default + = note: `#[deny(out_of_scope_macro_calls)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: cannot find macro `in_mod_escape` in the current scope when looking from the crate root @@ -211,7 +211,7 @@ LL | #![doc = in_mod_escape!()] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 <https://github.com/rust-lang/rust/issues/124535> = help: import `macro_rules` with `use` to make it callable above its definition - = note: `#[deny(out_of_scope_macro_calls)]` on by default + = note: `#[deny(out_of_scope_macro_calls)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: cannot find macro `in_mod` in the current scope when looking from module `macros_stay` @@ -223,7 +223,7 @@ LL | #[doc = in_mod!()] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 <https://github.com/rust-lang/rust/issues/124535> = help: import `macro_rules` with `use` to make it callable above its definition - = note: `#[deny(out_of_scope_macro_calls)]` on by default + = note: `#[deny(out_of_scope_macro_calls)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: cannot find macro `in_mod` in the current scope when looking from module `macros_stay` @@ -235,7 +235,7 @@ LL | #![doc = in_mod!()] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 <https://github.com/rust-lang/rust/issues/124535> = help: import `macro_rules` with `use` to make it callable above its definition - = note: `#[deny(out_of_scope_macro_calls)]` on by default + = note: `#[deny(out_of_scope_macro_calls)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: cannot find macro `in_mod_escape` in the current scope when looking from module `macros_escape` @@ -247,7 +247,7 @@ LL | #[doc = in_mod_escape!()] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 <https://github.com/rust-lang/rust/issues/124535> = help: import `macro_rules` with `use` to make it callable above its definition - = note: `#[deny(out_of_scope_macro_calls)]` on by default + = note: `#[deny(out_of_scope_macro_calls)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: cannot find macro `in_mod_escape` in the current scope when looking from module `macros_escape` @@ -259,5 +259,5 @@ LL | #![doc = in_mod_escape!()] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 <https://github.com/rust-lang/rust/issues/124535> = help: import `macro_rules` with `use` to make it callable above its definition - = note: `#[deny(out_of_scope_macro_calls)]` on by default + = note: `#[deny(out_of_scope_macro_calls)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/attributes/key-value-expansion.stderr b/tests/ui/attributes/key-value-expansion.stderr index 54d79c5bebb..d785bf97819 100644 --- a/tests/ui/attributes/key-value-expansion.stderr +++ b/tests/ui/attributes/key-value-expansion.stderr @@ -1,10 +1,4 @@ error: attribute value must be a literal - --> $DIR/key-value-expansion.rs:21:6 - | -LL | bug!((column!())); - | ^^^^^^^^^^^ - -error: attribute value must be a literal --> $DIR/key-value-expansion.rs:27:14 | LL | bug!("bug" + stringify!(found)); @@ -26,5 +20,11 @@ LL | some_macro!(u8); | = note: this error originates in the macro `some_macro` (in Nightly builds, run with -Z macro-backtrace for more info) +error: attribute value must be a literal + --> $DIR/key-value-expansion.rs:21:6 + | +LL | bug!((column!())); + | ^^^^^^^^^^^ + error: aborting due to 3 previous errors diff --git a/tests/ui/attributes/linkage.stderr b/tests/ui/attributes/linkage.stderr index 2e7ff0e7936..d2aee384058 100644 --- a/tests/ui/attributes/linkage.stderr +++ b/tests/ui/attributes/linkage.stderr @@ -4,7 +4,7 @@ error: `#[linkage]` attribute cannot be used on type aliases LL | #[linkage = "weak"] | ^^^^^^^^^^^^^^^^^^^ | - = help: `#[linkage]` can be applied to functions, statics, foreign statics + = help: `#[linkage]` can be applied to functions, statics, and foreign statics error: `#[linkage]` attribute cannot be used on modules --> $DIR/linkage.rs:9:1 @@ -12,7 +12,7 @@ error: `#[linkage]` attribute cannot be used on modules LL | #[linkage = "weak"] | ^^^^^^^^^^^^^^^^^^^ | - = help: `#[linkage]` can be applied to functions, statics, foreign statics + = help: `#[linkage]` can be applied to functions, statics, and foreign statics error: `#[linkage]` attribute cannot be used on structs --> $DIR/linkage.rs:12:1 @@ -20,7 +20,7 @@ error: `#[linkage]` attribute cannot be used on structs LL | #[linkage = "weak"] | ^^^^^^^^^^^^^^^^^^^ | - = help: `#[linkage]` can be applied to functions, statics, foreign statics + = help: `#[linkage]` can be applied to functions, statics, and foreign statics error: `#[linkage]` attribute cannot be used on inherent impl blocks --> $DIR/linkage.rs:15:1 @@ -28,7 +28,7 @@ error: `#[linkage]` attribute cannot be used on inherent impl blocks LL | #[linkage = "weak"] | ^^^^^^^^^^^^^^^^^^^ | - = help: `#[linkage]` can be applied to functions, statics, foreign statics + = help: `#[linkage]` can be applied to functions, statics, and foreign statics error: `#[linkage]` attribute cannot be used on expressions --> $DIR/linkage.rs:23:5 @@ -36,7 +36,7 @@ error: `#[linkage]` attribute cannot be used on expressions LL | #[linkage = "weak"] | ^^^^^^^^^^^^^^^^^^^ | - = help: `#[linkage]` can be applied to functions, statics, foreign statics + = help: `#[linkage]` can be applied to functions, statics, and foreign statics error: `#[linkage]` attribute cannot be used on closures --> $DIR/linkage.rs:39:13 @@ -44,7 +44,7 @@ error: `#[linkage]` attribute cannot be used on closures LL | let _ = #[linkage = "weak"] | ^^^^^^^^^^^^^^^^^^^ | - = help: `#[linkage]` can be applied to methods, functions, statics, foreign statics, foreign functions + = help: `#[linkage]` can be applied to methods, functions, statics, foreign statics, and foreign functions error: aborting due to 6 previous errors diff --git a/tests/ui/attributes/lint_on_root.stderr b/tests/ui/attributes/lint_on_root.stderr index f6eafc33d69..46b0b613a2f 100644 --- a/tests/ui/attributes/lint_on_root.stderr +++ b/tests/ui/attributes/lint_on_root.stderr @@ -14,7 +14,7 @@ LL | #![inline = ""] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 2 previous errors @@ -27,5 +27,5 @@ LL | #![inline = ""] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/attributes/malformed-attrs.stderr b/tests/ui/attributes/malformed-attrs.stderr index d1d9fef2a40..69f9a18c179 100644 --- a/tests/ui/attributes/malformed-attrs.stderr +++ b/tests/ui/attributes/malformed-attrs.stderr @@ -41,32 +41,6 @@ LL | #![windows_subsystem = "console"] LL | #![windows_subsystem = "windows"] | +++++++++++ -error: malformed `crate_name` attribute input - --> $DIR/malformed-attrs.rs:74:1 - | -LL | #[crate_name] - | ^^^^^^^^^^^^^ help: must be of the form: `#[crate_name = "name"]` - | - = note: for more information, visit <https://doc.rust-lang.org/reference/crates-and-source-files.html#the-crate_name-attribute> - -error: malformed `sanitize` attribute input - --> $DIR/malformed-attrs.rs:92:1 - | -LL | #[sanitize] - | ^^^^^^^^^^^ - | -help: the following are the possible correct uses - | -LL | #[sanitize(address = "on|off")] - | ++++++++++++++++++++ -LL | #[sanitize(cfi = "on|off")] - | ++++++++++++++++ -LL | #[sanitize(hwaddress = "on|off")] - | ++++++++++++++++++++++ -LL | #[sanitize(kcfi = "on|off")] - | +++++++++++++++++ - = and 5 other candidates - error: malformed `instruction_set` attribute input --> $DIR/malformed-attrs.rs:106:1 | @@ -256,7 +230,7 @@ LL | #[doc] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> = note: for more information, visit <https://doc.rust-lang.org/rustdoc/write-documentation/the-doc-attribute.html> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default error: valid forms for the attribute are `#[doc(hidden)]`, `#[doc(inline)]`, and `#[doc = "string"]` --> $DIR/malformed-attrs.rs:76:1 @@ -496,6 +470,12 @@ LL | #[used()] | = help: `#[used]` can only be applied to statics +error[E0539]: malformed `crate_name` attribute input + --> $DIR/malformed-attrs.rs:74:1 + | +LL | #[crate_name] + | ^^^^^^^^^^^^^ help: must be of the form: `#[crate_name = "name"]` + error[E0539]: malformed `target_feature` attribute input --> $DIR/malformed-attrs.rs:79:1 | @@ -543,6 +523,24 @@ LL | #[coverage(off)] LL | #[coverage(on)] | ++++ +error[E0539]: malformed `sanitize` attribute input + --> $DIR/malformed-attrs.rs:92:1 + | +LL | #[sanitize] + | ^^^^^^^^^^^ expected this to be a list + | +help: try changing it to one of the following valid forms of the attribute + | +LL | #[sanitize(address = "on|off")] + | ++++++++++++++++++++ +LL | #[sanitize(cfi = "on|off")] + | ++++++++++++++++ +LL | #[sanitize(hwaddress = "on|off")] + | ++++++++++++++++++++++ +LL | #[sanitize(kcfi = "on|off")] + | +++++++++++++++++ + = and 5 other candidates + error[E0565]: malformed `no_implicit_prelude` attribute input --> $DIR/malformed-attrs.rs:97:1 | @@ -766,7 +764,7 @@ warning: `#[diagnostic::do_not_recommend]` does not expect any arguments LL | #[diagnostic::do_not_recommend()] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = note: `#[warn(malformed_diagnostic_attributes)]` on by default + = note: `#[warn(malformed_diagnostic_attributes)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default warning: missing options for `on_unimplemented` attribute --> $DIR/malformed-attrs.rs:138:1 @@ -836,7 +834,7 @@ LL | #[doc] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> = note: for more information, visit <https://doc.rust-lang.org/rustdoc/write-documentation/the-doc-attribute.html> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: valid forms for the attribute are `#[doc(hidden)]`, `#[doc(inline)]`, and `#[doc = "string"]` @@ -848,7 +846,7 @@ LL | #[doc] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> = note: for more information, visit <https://doc.rust-lang.org/rustdoc/write-documentation/the-doc-attribute.html> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: valid forms for the attribute are `#[link(name = "...")]`, `#[link(name = "...", kind = "dylib|static|...")]`, `#[link(name = "...", wasm_import_module = "...")]`, `#[link(name = "...", import_name_type = "decorated|noprefix|undecorated")]`, and `#[link(name = "...", kind = "dylib|static|...", wasm_import_module = "...", import_name_type = "decorated|noprefix|undecorated")]` @@ -860,7 +858,7 @@ LL | #[link] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> = note: for more information, visit <https://doc.rust-lang.org/reference/items/external-blocks.html#the-link-attribute> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: valid forms for the attribute are `#[inline(always)]`, `#[inline(never)]`, and `#[inline]` @@ -871,7 +869,7 @@ LL | #[inline = 5] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]` @@ -882,7 +880,7 @@ LL | #[ignore()] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]` @@ -893,5 +891,5 @@ LL | #[ignore = 1] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/attributes/malformed-fn-align.rs b/tests/ui/attributes/malformed-fn-align.rs index adce84763ab..c76eda65a75 100644 --- a/tests/ui/attributes/malformed-fn-align.rs +++ b/tests/ui/attributes/malformed-fn-align.rs @@ -26,7 +26,7 @@ fn f3() {} #[repr(align(16))] //~ ERROR `#[repr(align(...))]` is not supported on functions fn f4() {} -#[rustc_align(-1)] //~ ERROR expected unsuffixed literal, found `-` +#[rustc_align(-1)] //~ ERROR expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `-` fn f5() {} #[rustc_align(3)] //~ ERROR invalid alignment value: not a power of two diff --git a/tests/ui/attributes/malformed-fn-align.stderr b/tests/ui/attributes/malformed-fn-align.stderr index 346fe2b4b7f..33f789b6269 100644 --- a/tests/ui/attributes/malformed-fn-align.stderr +++ b/tests/ui/attributes/malformed-fn-align.stderr @@ -1,17 +1,3 @@ -error: expected unsuffixed literal, found `-` - --> $DIR/malformed-fn-align.rs:29:15 - | -LL | #[rustc_align(-1)] - | ^ - -error: suffixed literals are not allowed in attributes - --> $DIR/malformed-fn-align.rs:35:15 - | -LL | #[rustc_align(4usize)] - | ^^^^^^ - | - = help: instead of using a suffixed literal (`1u8`, `1.0f32`, etc.), use an unsuffixed version (`1`, `1.0`, etc.) - error[E0539]: malformed `rustc_align` attribute input --> $DIR/malformed-fn-align.rs:10:5 | @@ -51,12 +37,32 @@ error[E0589]: invalid alignment value: not a power of two LL | #[rustc_align(0)] | ^ +error: expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `-` + --> $DIR/malformed-fn-align.rs:29:15 + | +LL | #[rustc_align(-1)] + | ^ + | +help: negative numbers are not literals, try removing the `-` sign + | +LL - #[rustc_align(-1)] +LL + #[rustc_align(1)] + | + error[E0589]: invalid alignment value: not a power of two --> $DIR/malformed-fn-align.rs:32:15 | LL | #[rustc_align(3)] | ^ +error: suffixed literals are not allowed in attributes + --> $DIR/malformed-fn-align.rs:35:15 + | +LL | #[rustc_align(4usize)] + | ^^^^^^ + | + = help: instead of using a suffixed literal (`1u8`, `1.0f32`, etc.), use an unsuffixed version (`1`, `1.0`, etc.) + error[E0589]: invalid alignment value: not an unsuffixed integer --> $DIR/malformed-fn-align.rs:35:15 | diff --git a/tests/ui/attributes/nonterminal-expansion.rs b/tests/ui/attributes/nonterminal-expansion.rs index 004a8a23fd6..ff2b36f7d27 100644 --- a/tests/ui/attributes/nonterminal-expansion.rs +++ b/tests/ui/attributes/nonterminal-expansion.rs @@ -5,7 +5,7 @@ macro_rules! pass_nonterminal { ($n:expr) => { #[repr(align($n))] - //~^ ERROR expected unsuffixed literal, found `expr` metavariable + //~^ ERROR expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `expr` metavariable struct S; }; } @@ -15,6 +15,5 @@ macro_rules! n { } pass_nonterminal!(n!()); -//~^ ERROR incorrect `repr(align)` attribute format: `align` expects a literal integer as argument [E0693] fn main() {} diff --git a/tests/ui/attributes/nonterminal-expansion.stderr b/tests/ui/attributes/nonterminal-expansion.stderr index 9c6cb98f619..21912de2106 100644 --- a/tests/ui/attributes/nonterminal-expansion.stderr +++ b/tests/ui/attributes/nonterminal-expansion.stderr @@ -1,4 +1,4 @@ -error: expected unsuffixed literal, found `expr` metavariable +error: expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `expr` metavariable --> $DIR/nonterminal-expansion.rs:7:22 | LL | #[repr(align($n))] @@ -9,12 +9,5 @@ LL | pass_nonterminal!(n!()); | = note: this error originates in the macro `pass_nonterminal` (in Nightly builds, run with -Z macro-backtrace for more info) -error[E0693]: incorrect `repr(align)` attribute format: `align` expects a literal integer as argument - --> $DIR/nonterminal-expansion.rs:17:19 - | -LL | pass_nonterminal!(n!()); - | ^ - -error: aborting due to 2 previous errors +error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0693`. diff --git a/tests/ui/attributes/rustc_confusables.rs b/tests/ui/attributes/rustc_confusables.rs index 91c66a75cc3..14aed092694 100644 --- a/tests/ui/attributes/rustc_confusables.rs +++ b/tests/ui/attributes/rustc_confusables.rs @@ -45,4 +45,5 @@ impl Bar { #[rustc_confusables("blah")] //~^ ERROR attribute cannot be used on //~| HELP can only be applied to +//~| HELP remove the attribute fn not_inherent_impl_method() {} diff --git a/tests/ui/attributes/unsafe/proc-unsafe-attributes.stderr b/tests/ui/attributes/unsafe/proc-unsafe-attributes.stderr index 107e053ae0c..94edb263a6a 100644 --- a/tests/ui/attributes/unsafe/proc-unsafe-attributes.stderr +++ b/tests/ui/attributes/unsafe/proc-unsafe-attributes.stderr @@ -28,17 +28,6 @@ LL | #[unsafe(proc_macro_derive(Foo))] | = note: extraneous unsafe is not allowed in attributes -error: expected identifier, found keyword `unsafe` - --> $DIR/proc-unsafe-attributes.rs:12:21 - | -LL | #[proc_macro_derive(unsafe(Foo))] - | ^^^^^^ expected identifier, found keyword - | -help: escape `unsafe` to use it as an identifier - | -LL | #[proc_macro_derive(r#unsafe(Foo))] - | ++ - error: `proc_macro_attribute` is not an unsafe attribute --> $DIR/proc-unsafe-attributes.rs:18:3 | @@ -114,6 +103,17 @@ LL | #[unsafe(allow(unsafe(dead_code)))] | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` +error: expected identifier, found keyword `unsafe` + --> $DIR/proc-unsafe-attributes.rs:12:21 + | +LL | #[proc_macro_derive(unsafe(Foo))] + | ^^^^^^ expected identifier, found keyword + | +help: escape `unsafe` to use it as an identifier + | +LL | #[proc_macro_derive(r#unsafe(Foo))] + | ++ + error[E0565]: malformed `proc_macro_derive` attribute input --> $DIR/proc-unsafe-attributes.rs:12:1 | diff --git a/tests/ui/auto-traits/auto-traits.stderr b/tests/ui/auto-traits/auto-traits.stderr index 34be8d3f67b..1ac1a992200 100644 --- a/tests/ui/auto-traits/auto-traits.stderr +++ b/tests/ui/auto-traits/auto-traits.stderr @@ -4,7 +4,7 @@ warning: trait `AutoInner` is never used LL | auto trait AutoInner {} | ^^^^^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: trait `AutoUnsafeInner` is never used --> $DIR/auto-traits.rs:23:23 diff --git a/tests/ui/auto-traits/issue-83857-ub.stderr b/tests/ui/auto-traits/issue-83857-ub.stderr index 3536450c75b..9bfdecf6f54 100644 --- a/tests/ui/auto-traits/issue-83857-ub.stderr +++ b/tests/ui/auto-traits/issue-83857-ub.stderr @@ -4,7 +4,11 @@ error[E0277]: `Foo<T, U>` cannot be sent between threads safely LL | fn generic<T, U>(v: Foo<T, U>, f: fn(<Foo<T, U> as WithAssoc>::Output) -> i32) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `Foo<T, U>` cannot be sent between threads safely | - = help: the trait `Send` is not implemented for `Foo<T, U>` +help: the trait `Send` is not implemented for `Foo<T, U>` + --> $DIR/issue-83857-ub.rs:6:1 + | +LL | struct Foo<T, U>(Always<T, U>); + | ^^^^^^^^^^^^^^^^ note: required for `Foo<T, U>` to implement `WithAssoc` --> $DIR/issue-83857-ub.rs:14:15 | @@ -23,7 +27,11 @@ error[E0277]: `Foo<T, U>` cannot be sent between threads safely LL | fn generic<T, U>(v: Foo<T, U>, f: fn(<Foo<T, U> as WithAssoc>::Output) -> i32) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `Foo<T, U>` cannot be sent between threads safely | - = help: the trait `Send` is not implemented for `Foo<T, U>` +help: the trait `Send` is not implemented for `Foo<T, U>` + --> $DIR/issue-83857-ub.rs:6:1 + | +LL | struct Foo<T, U>(Always<T, U>); + | ^^^^^^^^^^^^^^^^ note: required for `Foo<T, U>` to implement `WithAssoc` --> $DIR/issue-83857-ub.rs:14:15 | @@ -44,7 +52,11 @@ LL | f(foo(v)); | | | required by a bound introduced by this call | - = help: the trait `Send` is not implemented for `Foo<T, U>` +help: the trait `Send` is not implemented for `Foo<T, U>` + --> $DIR/issue-83857-ub.rs:6:1 + | +LL | struct Foo<T, U>(Always<T, U>); + | ^^^^^^^^^^^^^^^^ note: required by a bound in `foo` --> $DIR/issue-83857-ub.rs:28:11 | diff --git a/tests/ui/auto-traits/typeck-default-trait-impl-constituent-types-2.stderr b/tests/ui/auto-traits/typeck-default-trait-impl-constituent-types-2.stderr index aa5585a5371..c948e1b1051 100644 --- a/tests/ui/auto-traits/typeck-default-trait-impl-constituent-types-2.stderr +++ b/tests/ui/auto-traits/typeck-default-trait-impl-constituent-types-2.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `MyS2: MyTrait` is not satisfied in `(MyS2, MyS)` --> $DIR/typeck-default-trait-impl-constituent-types-2.rs:17:18 | LL | is_mytrait::<(MyS2, MyS)>(); - | ^^^^^^^^^^^ within `(MyS2, MyS)`, the trait `MyTrait` is not implemented for `MyS2` + | ^^^^^^^^^^^ unsatisfied trait bound | +help: within `(MyS2, MyS)`, the trait `MyTrait` is not implemented for `MyS2` + --> $DIR/typeck-default-trait-impl-constituent-types-2.rs:8:1 + | +LL | struct MyS2; + | ^^^^^^^^^^^ = note: required because it appears within the type `(MyS2, MyS)` note: required by a bound in `is_mytrait` --> $DIR/typeck-default-trait-impl-constituent-types-2.rs:12:18 diff --git a/tests/ui/auto-traits/typeck-default-trait-impl-constituent-types.stderr b/tests/ui/auto-traits/typeck-default-trait-impl-constituent-types.stderr index 668cbc8aeb4..ae33aeff6e2 100644 --- a/tests/ui/auto-traits/typeck-default-trait-impl-constituent-types.stderr +++ b/tests/ui/auto-traits/typeck-default-trait-impl-constituent-types.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `MyS2: MyTrait` is not satisfied --> $DIR/typeck-default-trait-impl-constituent-types.rs:21:18 | LL | is_mytrait::<MyS2>(); - | ^^^^ the trait `MyTrait` is not implemented for `MyS2` + | ^^^^ unsatisfied trait bound | +help: the trait `MyTrait` is not implemented for `MyS2` + --> $DIR/typeck-default-trait-impl-constituent-types.rs:10:1 + | +LL | struct MyS2; + | ^^^^^^^^^^^ note: required by a bound in `is_mytrait` --> $DIR/typeck-default-trait-impl-constituent-types.rs:16:18 | diff --git a/tests/ui/auto-traits/typeck-default-trait-impl-negation.stderr b/tests/ui/auto-traits/typeck-default-trait-impl-negation.stderr index fa8dd41da23..4b10262c2e2 100644 --- a/tests/ui/auto-traits/typeck-default-trait-impl-negation.stderr +++ b/tests/ui/auto-traits/typeck-default-trait-impl-negation.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `ThisImplsUnsafeTrait: MyTrait` is not satisfied --> $DIR/typeck-default-trait-impl-negation.rs:22:19 | LL | is_my_trait::<ThisImplsUnsafeTrait>(); - | ^^^^^^^^^^^^^^^^^^^^ the trait `MyTrait` is not implemented for `ThisImplsUnsafeTrait` + | ^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | +help: the trait `MyTrait` is not implemented for `ThisImplsUnsafeTrait` + --> $DIR/typeck-default-trait-impl-negation.rs:13:1 + | +LL | struct ThisImplsUnsafeTrait; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: required by a bound in `is_my_trait` --> $DIR/typeck-default-trait-impl-negation.rs:17:19 | @@ -14,8 +19,13 @@ error[E0277]: the trait bound `ThisImplsTrait: MyUnsafeTrait` is not satisfied --> $DIR/typeck-default-trait-impl-negation.rs:25:26 | LL | is_my_unsafe_trait::<ThisImplsTrait>(); - | ^^^^^^^^^^^^^^ the trait `MyUnsafeTrait` is not implemented for `ThisImplsTrait` + | ^^^^^^^^^^^^^^ unsatisfied trait bound + | +help: the trait `MyUnsafeTrait` is not implemented for `ThisImplsTrait` + --> $DIR/typeck-default-trait-impl-negation.rs:8:1 | +LL | struct ThisImplsTrait; + | ^^^^^^^^^^^^^^^^^^^^^ note: required by a bound in `is_my_unsafe_trait` --> $DIR/typeck-default-trait-impl-negation.rs:18:26 | diff --git a/tests/ui/issues/issue-77218/issue-77218.fixed b/tests/ui/binding/invalid-assignment-in-while-loop-77218.fixed index 6ce9dd1c2c5..aa662ead21a 100644 --- a/tests/ui/issues/issue-77218/issue-77218.fixed +++ b/tests/ui/binding/invalid-assignment-in-while-loop-77218.fixed @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/77218 //@ run-rustfix fn main() { let value = [7u8]; diff --git a/tests/ui/issues/issue-77218/issue-77218.rs b/tests/ui/binding/invalid-assignment-in-while-loop-77218.rs index 14edc065d0e..9f249180e83 100644 --- a/tests/ui/issues/issue-77218/issue-77218.rs +++ b/tests/ui/binding/invalid-assignment-in-while-loop-77218.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/77218 //@ run-rustfix fn main() { let value = [7u8]; diff --git a/tests/ui/issues/issue-77218/issue-77218.stderr b/tests/ui/binding/invalid-assignment-in-while-loop-77218.stderr index e98e69314d9..e6baf349d28 100644 --- a/tests/ui/issues/issue-77218/issue-77218.stderr +++ b/tests/ui/binding/invalid-assignment-in-while-loop-77218.stderr @@ -1,5 +1,5 @@ error[E0070]: invalid left-hand side of assignment - --> $DIR/issue-77218.rs:4:19 + --> $DIR/invalid-assignment-in-while-loop-77218.rs:5:19 | LL | while Some(0) = value.get(0) {} | - ^ diff --git a/tests/ui/binop/binops.rs b/tests/ui/binop/binops.rs index 7142190a45b..702e9a61345 100644 --- a/tests/ui/binop/binops.rs +++ b/tests/ui/binop/binops.rs @@ -35,6 +35,7 @@ fn test_bool() { assert_eq!(true ^ true, false); } +#[allow(integer_to_ptr_transmutes)] fn test_ptr() { unsafe { let p1: *const u8 = ::std::mem::transmute(0_usize); diff --git a/tests/ui/borrowck/borrowck-unsafe-static-mutable-borrows.stderr b/tests/ui/borrowck/borrowck-unsafe-static-mutable-borrows.stderr index c55923097fc..709cf76b444 100644 --- a/tests/ui/borrowck/borrowck-unsafe-static-mutable-borrows.stderr +++ b/tests/ui/borrowck/borrowck-unsafe-static-mutable-borrows.stderr @@ -6,7 +6,7 @@ LL | let sfoo: *mut Foo = &mut SFOO; | = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html> = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives - = note: `#[warn(static_mut_refs)]` on by default + = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `&raw mut` instead to create a raw pointer | LL | let sfoo: *mut Foo = &raw mut SFOO; diff --git a/tests/ui/borrowck/ice-mutability-error-slicing-121807.stderr b/tests/ui/borrowck/ice-mutability-error-slicing-121807.stderr index 02d5231f713..8e1cd800b37 100644 --- a/tests/ui/borrowck/ice-mutability-error-slicing-121807.stderr +++ b/tests/ui/borrowck/ice-mutability-error-slicing-121807.stderr @@ -21,7 +21,7 @@ LL | extern "C" fn read_dword(Self::Assoc<'_>) -> u16; | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686> - = note: `#[warn(anonymous_parameters)]` on by default + = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default error[E0185]: method `read_dword` has a `&self` declaration in the impl, but not in the trait --> $DIR/ice-mutability-error-slicing-121807.rs:17:5 diff --git a/tests/ui/issues/issue-78192.rs b/tests/ui/borrowck/incorrect-use-after-storage-end-78192.rs index bec2a82910c..99a1d37eb4d 100644 --- a/tests/ui/issues/issue-78192.rs +++ b/tests/ui/borrowck/incorrect-use-after-storage-end-78192.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/78192 //@ run-pass #![allow(unused_assignments)] diff --git a/tests/ui/issues/issue-7660.rs b/tests/ui/borrowck/rvalue-lifetime-match-equivalence-7660.rs index 104cdad8f7b..90526de14e7 100644 --- a/tests/ui/issues/issue-7660.rs +++ b/tests/ui/borrowck/rvalue-lifetime-match-equivalence-7660.rs @@ -1,9 +1,9 @@ +// https://github.com/rust-lang/rust/issues/7660 //@ run-pass #![allow(unused_variables)] // Regression test for issue 7660 // rvalue lifetime too short when equivalent `match` works - use std::collections::HashMap; struct A(isize, isize); diff --git a/tests/ui/borrowck/trait-impl-argument-difference-ice.stderr b/tests/ui/borrowck/trait-impl-argument-difference-ice.stderr index a656bb67bcb..3d54d5269ae 100644 --- a/tests/ui/borrowck/trait-impl-argument-difference-ice.stderr +++ b/tests/ui/borrowck/trait-impl-argument-difference-ice.stderr @@ -6,7 +6,7 @@ LL | extern "C" fn read_dword(Self::Assoc<'_>) -> u16; | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686> - = note: `#[warn(anonymous_parameters)]` on by default + = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default error[E0185]: method `read_dword` has a `&self` declaration in the impl, but not in the trait --> $DIR/trait-impl-argument-difference-ice.rs:14:5 diff --git a/tests/ui/c-variadic/same-program-multiple-abis-arm.rs b/tests/ui/c-variadic/same-program-multiple-abis-arm.rs new file mode 100644 index 00000000000..1b0bdecabfb --- /dev/null +++ b/tests/ui/c-variadic/same-program-multiple-abis-arm.rs @@ -0,0 +1,77 @@ +#![feature(extended_varargs_abi_support)] +//@ run-pass +//@ only-arm +//@ ignore-thumb (this test uses arm assembly) +//@ only-eabihf (the assembly below requires float hardware support) + +// Check that multiple c-variadic calling conventions can be used in the same program. +// +// Clang and gcc reject defining functions with a non-default calling convention and a variable +// argument list, so C programs that use multiple c-variadic calling conventions are unlikely +// to come up. Here we validate that our codegen backends do in fact generate correct code. + +extern "C" { + fn variadic_c(_: f64, _: ...) -> f64; +} + +extern "aapcs" { + fn variadic_aapcs(_: f64, _: ...) -> f64; +} + +fn main() { + unsafe { + assert_eq!(variadic_c(1.0, 2.0, 3.0), 1.0 + 2.0 + 3.0); + assert_eq!(variadic_aapcs(1.0, 2.0, 3.0), 1.0 + 2.0 + 3.0); + } +} + +// This assembly was generated using https://godbolt.org/z/xcW6a1Tj5, and corresponds to the +// following code compiled for the `armv7-unknown-linux-gnueabihf` target: +// +// ```rust +// #![feature(c_variadic)] +// +// #[unsafe(no_mangle)] +// unsafe extern "C" fn variadic(a: f64, mut args: ...) -> f64 { +// let b = args.arg::<f64>(); +// let c = args.arg::<f64>(); +// +// a + b + c +// } +// ``` +// +// This function uses floats (and passes one normal float argument) because the aapcs and C calling +// conventions differ in how floats are passed, e.g. https://godbolt.org/z/sz799f51x. However, for +// c-variadic functions, both ABIs actually behave the same, based on: +// +// https://github.com/ARM-software/abi-aa/blob/main/aapcs32/aapcs32.rst#65parameter-passing +// +// > A variadic function is always marshaled as for the base standard. +// +// https://github.com/ARM-software/abi-aa/blob/main/aapcs32/aapcs32.rst#7the-standard-variants +// +// > This section applies only to non-variadic functions. For a variadic function the base standard +// > is always used both for argument passing and result return. +core::arch::global_asm!( + r#" +{variadic_c}: +{variadic_aapcs}: + sub sp, sp, #12 + stmib sp, {{r2, r3}} + vmov d0, r0, r1 + add r0, sp, #4 + vldr d1, [sp, #4] + add r0, r0, #15 + bic r0, r0, #7 + vadd.f64 d0, d0, d1 + add r1, r0, #8 + str r1, [sp] + vldr d1, [r0] + vadd.f64 d0, d0, d1 + vmov r0, r1, d0 + add sp, sp, #12 + bx lr + "#, + variadic_c = sym variadic_c, + variadic_aapcs = sym variadic_aapcs, +); diff --git a/tests/ui/c-variadic/same-program-multiple-abis.rs b/tests/ui/c-variadic/same-program-multiple-abis-x86_64.rs index b21accb999e..b21accb999e 100644 --- a/tests/ui/c-variadic/same-program-multiple-abis.rs +++ b/tests/ui/c-variadic/same-program-multiple-abis-x86_64.rs diff --git a/tests/ui/cast/cast-rfc0401-vtable-kinds.stderr b/tests/ui/cast/cast-rfc0401-vtable-kinds.stderr index 01277fd632e..5f5238dd891 100644 --- a/tests/ui/cast/cast-rfc0401-vtable-kinds.stderr +++ b/tests/ui/cast/cast-rfc0401-vtable-kinds.stderr @@ -4,7 +4,7 @@ warning: trait `Bar` is never used LL | trait Bar { | ^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/cast/coercion-as-explicit-cast.stderr b/tests/ui/cast/coercion-as-explicit-cast.stderr index d66298c7d44..9553ddd6567 100644 --- a/tests/ui/cast/coercion-as-explicit-cast.stderr +++ b/tests/ui/cast/coercion-as-explicit-cast.stderr @@ -6,7 +6,7 @@ LL | trait Foo { LL | fn foo(&self) {} | ^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/cast/fat-ptr-cast-rpass.stderr b/tests/ui/cast/fat-ptr-cast-rpass.stderr index d01688e0cc3..b314f397c4f 100644 --- a/tests/ui/cast/fat-ptr-cast-rpass.stderr +++ b/tests/ui/cast/fat-ptr-cast-rpass.stderr @@ -6,7 +6,7 @@ LL | trait Foo { LL | fn foo(&self) {} | ^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/check-cfg/target_feature.stderr b/tests/ui/check-cfg/target_feature.stderr index 5dd81f486c8..f6448147392 100644 --- a/tests/ui/check-cfg/target_feature.stderr +++ b/tests/ui/check-cfg/target_feature.stderr @@ -6,6 +6,7 @@ LL | cfg!(target_feature = "_UNEXPECTED_VALUE"); | = note: expected values for `target_feature` are: `10e60` `2e3` +`32s` `3e3r1` `3e3r2` `3e3r3` diff --git a/tests/ui/closures/2229_closure_analysis/diagnostics/borrowck/borrowck-4.rs b/tests/ui/closures/2229_closure_analysis/diagnostics/borrowck/borrowck-4.rs index c7a37a81848..123e23d6107 100644 --- a/tests/ui/closures/2229_closure_analysis/diagnostics/borrowck/borrowck-4.rs +++ b/tests/ui/closures/2229_closure_analysis/diagnostics/borrowck/borrowck-4.rs @@ -5,12 +5,12 @@ struct Point { x: i32, y: i32, } -fn foo () -> impl FnMut()->() { +fn foo () -> impl FnMut() { let mut p = Point {x: 1, y: 2 }; let mut c = || { - //~^ ERROR closure may outlive the current function, but it borrows `p` - p.x+=5; + p.x += 5; println!("{:?}", p); + //~^ ERROR `p` does not live long enough }; c } diff --git a/tests/ui/closures/2229_closure_analysis/diagnostics/borrowck/borrowck-4.stderr b/tests/ui/closures/2229_closure_analysis/diagnostics/borrowck/borrowck-4.stderr index d47f0539b84..96910375e09 100644 --- a/tests/ui/closures/2229_closure_analysis/diagnostics/borrowck/borrowck-4.stderr +++ b/tests/ui/closures/2229_closure_analysis/diagnostics/borrowck/borrowck-4.stderr @@ -1,22 +1,23 @@ -error[E0373]: closure may outlive the current function, but it borrows `p`, which is owned by the current function - --> $DIR/borrowck-4.rs:10:17 +error[E0597]: `p` does not live long enough + --> $DIR/borrowck-4.rs:12:25 | -LL | let mut c = || { - | ^^ may outlive borrowed value `p` -... -LL | println!("{:?}", p); - | - `p` is borrowed here - | -note: closure is returned here - --> $DIR/borrowck-4.rs:15:5 - | -LL | c - | ^ -help: to force the closure to take ownership of `p` (and any other referenced variables), use the `move` keyword - | -LL | let mut c = move || { - | ++++ +LL | let mut p = Point {x: 1, y: 2 }; + | ----- binding `p` declared here +LL | let mut c = || { + | -- + | | + | _________________value captured here + | | +LL | | p.x += 5; +LL | | println!("{:?}", p); + | | ^ borrowed value does not live long enough +LL | | +LL | | }; + | |_____- assignment requires that `p` is borrowed for `'static` +LL | c +LL | } + | - `p` dropped here while still borrowed error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0373`. +For more information about this error, try `rustc --explain E0597`. diff --git a/tests/ui/closures/2229_closure_analysis/match/issue-87097.stderr b/tests/ui/closures/2229_closure_analysis/match/issue-87097.stderr index 39ec71ba22a..df6e84c0f65 100644 --- a/tests/ui/closures/2229_closure_analysis/match/issue-87097.stderr +++ b/tests/ui/closures/2229_closure_analysis/match/issue-87097.stderr @@ -7,7 +7,7 @@ LL | A, LL | B, | ^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: unused closure that must be used --> $DIR/issue-87097.rs:17:5 @@ -19,7 +19,7 @@ LL | | }; | |_____^ | = note: closures are lazy and do nothing unless called - = note: `#[warn(unused_must_use)]` on by default + = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default warning: unused closure that must be used --> $DIR/issue-87097.rs:26:5 diff --git a/tests/ui/closures/issue-1460.stderr b/tests/ui/closures/issue-1460.stderr index 15eaf7a9a11..8d6851640f9 100644 --- a/tests/ui/closures/issue-1460.stderr +++ b/tests/ui/closures/issue-1460.stderr @@ -5,7 +5,7 @@ LL | {|i: u32| if 1 == i { }}; | ^^^^^^^^^^^^^^^^^^^^^^ | = note: closures are lazy and do nothing unless called - = note: `#[warn(unused_must_use)]` on by default + = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/closures/issue-52437.rs b/tests/ui/closures/issue-52437.rs index 6ac5380a5aa..98b04d179af 100644 --- a/tests/ui/closures/issue-52437.rs +++ b/tests/ui/closures/issue-52437.rs @@ -1,5 +1,5 @@ fn main() { [(); &(&'static: loop { |x| {}; }) as *const _ as usize] - //~^ ERROR: invalid label name `'static` + //~^ ERROR: labels cannot use keyword names //~| ERROR: type annotations needed } diff --git a/tests/ui/closures/issue-52437.stderr b/tests/ui/closures/issue-52437.stderr index 9ba24c7a886..8c6fa097ec5 100644 --- a/tests/ui/closures/issue-52437.stderr +++ b/tests/ui/closures/issue-52437.stderr @@ -1,4 +1,4 @@ -error: invalid label name `'static` +error: labels cannot use keyword names --> $DIR/issue-52437.rs:2:13 | LL | [(); &(&'static: loop { |x| {}; }) as *const _ as usize] diff --git a/tests/ui/closures/moved-upvar-mut-rebind-11958.stderr b/tests/ui/closures/moved-upvar-mut-rebind-11958.stderr index b12bbcad925..1bf8a8b23a1 100644 --- a/tests/ui/closures/moved-upvar-mut-rebind-11958.stderr +++ b/tests/ui/closures/moved-upvar-mut-rebind-11958.stderr @@ -5,7 +5,7 @@ LL | let _thunk = Box::new(move|| { x = 2; }); | ^ | = help: maybe it is overwritten before being read? - = note: `#[warn(unused_assignments)]` on by default + = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default warning: unused variable: `x` --> $DIR/moved-upvar-mut-rebind-11958.rs:10:36 @@ -14,7 +14,7 @@ LL | let _thunk = Box::new(move|| { x = 2; }); | ^ | = help: did you mean to capture by reference instead? - = note: `#[warn(unused_variables)]` on by default + = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default warning: 2 warnings emitted diff --git a/tests/ui/closures/old-closure-expr-precedence.stderr b/tests/ui/closures/old-closure-expr-precedence.stderr index fabece1ad4a..2ab1995075f 100644 --- a/tests/ui/closures/old-closure-expr-precedence.stderr +++ b/tests/ui/closures/old-closure-expr-precedence.stderr @@ -4,7 +4,7 @@ warning: unnecessary trailing semicolons LL | if (true) { 12; };;; -num; | ^^ help: remove these semicolons | - = note: `#[warn(redundant_semicolons)]` on by default + = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/closures/unused-closure-ice-16256.stderr b/tests/ui/closures/unused-closure-ice-16256.stderr index 9df433add5d..a00b9fbac8e 100644 --- a/tests/ui/closures/unused-closure-ice-16256.stderr +++ b/tests/ui/closures/unused-closure-ice-16256.stderr @@ -5,7 +5,7 @@ LL | |c: u8| buf.push(c); | ^^^^^^^^^^^^^^^^^^^ | = note: closures are lazy and do nothing unless called - = note: `#[warn(unused_must_use)]` on by default + = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/codegen/equal-pointers-unequal/as-cast/segfault.rs b/tests/ui/codegen/equal-pointers-unequal/as-cast/segfault.rs index 70cbb9a52f7..c69565a81f2 100644 --- a/tests/ui/codegen/equal-pointers-unequal/as-cast/segfault.rs +++ b/tests/ui/codegen/equal-pointers-unequal/as-cast/segfault.rs @@ -55,6 +55,7 @@ fn main() { // The `Box` has been deallocated by now, so this is a dangling reference! let r: &u8 = &*r; println!("{:p}", r); + println!("{}", i); // The following might segfault. Or it might not. // Depends on the platform semantics diff --git a/tests/ui/codegen/equal-pointers-unequal/exposed-provenance/segfault.rs b/tests/ui/codegen/equal-pointers-unequal/exposed-provenance/segfault.rs index ad1d7b56c8c..b74f85290a7 100644 --- a/tests/ui/codegen/equal-pointers-unequal/exposed-provenance/segfault.rs +++ b/tests/ui/codegen/equal-pointers-unequal/exposed-provenance/segfault.rs @@ -58,6 +58,7 @@ fn main() { // The `Box` has been deallocated by now, so this is a dangling reference! let r: &u8 = &*r; println!("{:p}", r); + println!("{}", i); // The following might segfault. Or it might not. // Depends on the platform semantics diff --git a/tests/ui/codegen/equal-pointers-unequal/strict-provenance/segfault.rs b/tests/ui/codegen/equal-pointers-unequal/strict-provenance/segfault.rs index 637f0042ada..18d5bd33355 100644 --- a/tests/ui/codegen/equal-pointers-unequal/strict-provenance/segfault.rs +++ b/tests/ui/codegen/equal-pointers-unequal/strict-provenance/segfault.rs @@ -58,6 +58,7 @@ fn main() { // The `Box` has been deallocated by now, so this is a dangling reference! let r: &u8 = &*r; println!("{:p}", r); + println!("{}", i); // The following might segfault. Or it might not. // Depends on the platform semantics diff --git a/tests/ui/issues/issue-76042.rs b/tests/ui/codegen/i128-shift-overflow-check-76042.rs index 279e860459d..7ae0806216c 100644 --- a/tests/ui/issues/issue-76042.rs +++ b/tests/ui/codegen/i128-shift-overflow-check-76042.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/76042 //@ run-pass //@ compile-flags: -Coverflow-checks=off -Ccodegen-units=1 -Copt-level=0 diff --git a/tests/ui/coercion/fake-sized-ptr-cast.rs b/tests/ui/coercion/fake-sized-ptr-cast.rs new file mode 100644 index 00000000000..4b6bf0eb516 --- /dev/null +++ b/tests/ui/coercion/fake-sized-ptr-cast.rs @@ -0,0 +1,16 @@ +// Make sure borrowck doesn't ICE because it thinks a pointer cast is a metadata-preserving +// wide-to-wide ptr cast when it's actually (falsely) a wide-to-thin ptr cast due to an +// impossible dyn sized bound. + +//@ check-pass + +trait Trait<T> {} + +fn func<'a>(x: *const (dyn Trait<()> + 'a)) +where + dyn Trait<u8> + 'a: Sized, +{ + let _x: *const dyn Trait<u8> = x as _; +} + +fn main() {} diff --git a/tests/ui/coercion/issue-14589.stderr b/tests/ui/coercion/issue-14589.stderr index 5d7b840a8d7..b98444ab7e4 100644 --- a/tests/ui/coercion/issue-14589.stderr +++ b/tests/ui/coercion/issue-14589.stderr @@ -6,7 +6,7 @@ LL | trait Foo { fn dummy(&self) { }} | | | method in this trait | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coercion/method-return-trait-object-14399.stderr b/tests/ui/coercion/method-return-trait-object-14399.stderr index 1aa87f53ff8..283358cb77d 100644 --- a/tests/ui/coercion/method-return-trait-object-14399.stderr +++ b/tests/ui/coercion/method-return-trait-object-14399.stderr @@ -6,7 +6,7 @@ LL | trait A { fn foo(&self) {} } | | | method in this trait | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/issues/issue-8248.rs b/tests/ui/coercion/mut-trait-coercion-8248.rs index 95f626658cc..a45a4d94315 100644 --- a/tests/ui/issues/issue-8248.rs +++ b/tests/ui/coercion/mut-trait-coercion-8248.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/8248 //@ run-pass trait A { diff --git a/tests/ui/issues/issue-8248.stderr b/tests/ui/coercion/mut-trait-coercion-8248.stderr index 8570bfaefad..0c7d5f9dc45 100644 --- a/tests/ui/issues/issue-8248.stderr +++ b/tests/ui/coercion/mut-trait-coercion-8248.stderr @@ -1,12 +1,12 @@ warning: method `dummy` is never used - --> $DIR/issue-8248.rs:4:8 + --> $DIR/mut-trait-coercion-8248.rs:5:8 | LL | trait A { | - method in this trait LL | fn dummy(&self) { } | ^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/issues/issue-8398.rs b/tests/ui/coercion/mut-trait-object-coercion-8398.rs index 7d100b855fd..d87d27582ba 100644 --- a/tests/ui/issues/issue-8398.rs +++ b/tests/ui/coercion/mut-trait-object-coercion-8398.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/8398 //@ check-pass #![allow(dead_code)] diff --git a/tests/ui/coercion/trait-object-coercion-distribution-9951.stderr b/tests/ui/coercion/trait-object-coercion-distribution-9951.stderr index 0c672aa9b33..04e05ed8d6b 100644 --- a/tests/ui/coercion/trait-object-coercion-distribution-9951.stderr +++ b/tests/ui/coercion/trait-object-coercion-distribution-9951.stderr @@ -6,7 +6,7 @@ LL | trait Bar { LL | fn noop(&self); | ^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coherence/coherence-fn-covariant-bound-vs-static.stderr b/tests/ui/coherence/coherence-fn-covariant-bound-vs-static.stderr index 01694eaf5d1..41164e99e6d 100644 --- a/tests/ui/coherence/coherence-fn-covariant-bound-vs-static.stderr +++ b/tests/ui/coherence/coherence-fn-covariant-bound-vs-static.stderr @@ -9,7 +9,7 @@ LL | impl<'a> Trait for fn(fn(&'a ())) {} = warning: the behavior may change in a future release = note: for more information, see issue #56105 <https://github.com/rust-lang/rust/issues/56105> = note: this behavior recently changed as a result of a bug fix; see rust-lang/rust#56105 for details - = note: `#[warn(coherence_leak_check)]` on by default + = note: `#[warn(coherence_leak_check)]` (part of `#[warn(future_incompatible)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coherence/coherence-fn-inputs.stderr b/tests/ui/coherence/coherence-fn-inputs.stderr index 56f3a14833e..75df33913a9 100644 --- a/tests/ui/coherence/coherence-fn-inputs.stderr +++ b/tests/ui/coherence/coherence-fn-inputs.stderr @@ -9,7 +9,7 @@ LL | impl Trait for for<'c> fn(&'c u32, &'c u32) { = warning: the behavior may change in a future release = note: for more information, see issue #56105 <https://github.com/rust-lang/rust/issues/56105> = note: this behavior recently changed as a result of a bug fix; see rust-lang/rust#56105 for details - = note: `#[warn(coherence_leak_check)]` on by default + = note: `#[warn(coherence_leak_check)]` (part of `#[warn(future_incompatible)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coherence/coherence-subtyping.stderr b/tests/ui/coherence/coherence-subtyping.stderr index 42f256ace78..f380ea87829 100644 --- a/tests/ui/coherence/coherence-subtyping.stderr +++ b/tests/ui/coherence/coherence-subtyping.stderr @@ -10,7 +10,7 @@ LL | impl TheTrait for for<'a> fn(&'a u8, &'a u8) -> &'a u8 { = warning: the behavior may change in a future release = note: for more information, see issue #56105 <https://github.com/rust-lang/rust/issues/56105> = note: this behavior recently changed as a result of a bug fix; see rust-lang/rust#56105 for details - = note: `#[warn(coherence_leak_check)]` on by default + = note: `#[warn(coherence_leak_check)]` (part of `#[warn(future_incompatible)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coherence/fuzzing/best-obligation-ICE.stderr b/tests/ui/coherence/fuzzing/best-obligation-ICE.stderr index fe28f4ff136..dedc8951041 100644 --- a/tests/ui/coherence/fuzzing/best-obligation-ICE.stderr +++ b/tests/ui/coherence/fuzzing/best-obligation-ICE.stderr @@ -11,8 +11,13 @@ error[E0277]: the trait bound `W<W<T>>: Trait` is not satisfied --> $DIR/best-obligation-ICE.rs:10:19 | LL | impl<T> Trait for W<W<W<T>>> {} - | ^^^^^^^^^^ the trait `Trait` is not implemented for `W<W<T>>` + | ^^^^^^^^^^ unsatisfied trait bound | +help: the trait `Trait` is not implemented for `W<W<T>>` + --> $DIR/best-obligation-ICE.rs:9:1 + | +LL | struct W<T: Trait>(*mut T); + | ^^^^^^^^^^^^^^^^^^ note: required by a bound in `W` --> $DIR/best-obligation-ICE.rs:9:13 | @@ -27,8 +32,13 @@ error[E0277]: the trait bound `W<T>: Trait` is not satisfied --> $DIR/best-obligation-ICE.rs:10:19 | LL | impl<T> Trait for W<W<W<T>>> {} - | ^^^^^^^^^^ the trait `Trait` is not implemented for `W<T>` + | ^^^^^^^^^^ unsatisfied trait bound | +help: the trait `Trait` is not implemented for `W<T>` + --> $DIR/best-obligation-ICE.rs:9:1 + | +LL | struct W<T: Trait>(*mut T); + | ^^^^^^^^^^^^^^^^^^ note: required by a bound in `W` --> $DIR/best-obligation-ICE.rs:9:13 | diff --git a/tests/ui/coherence/orphan-check-alias.classic.stderr b/tests/ui/coherence/orphan-check-alias.classic.stderr index 3fd62b05b4d..25fde6ee1d2 100644 --- a/tests/ui/coherence/orphan-check-alias.classic.stderr +++ b/tests/ui/coherence/orphan-check-alias.classic.stderr @@ -8,7 +8,7 @@ LL | impl<T> foreign::Trait2<B, T> for <T as Id>::Assoc { = note: for more information, see issue #124559 <https://github.com/rust-lang/rust/issues/124559> = note: implementing a foreign trait is only possible if at least one of the types for which it is implemented is local, and no uncovered type parameters appear before that first local type = note: in this case, 'before' refers to the following order: `impl<..> ForeignTrait<T1, ..., Tn> for T0`, where `T0` is the first and `Tn` is the last - = note: `#[warn(uncovered_param_in_projection)]` on by default + = note: `#[warn(uncovered_param_in_projection)]` (part of `#[warn(future_incompatible)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coherence/orphan-check-alias.next.stderr b/tests/ui/coherence/orphan-check-alias.next.stderr index 3fd62b05b4d..25fde6ee1d2 100644 --- a/tests/ui/coherence/orphan-check-alias.next.stderr +++ b/tests/ui/coherence/orphan-check-alias.next.stderr @@ -8,7 +8,7 @@ LL | impl<T> foreign::Trait2<B, T> for <T as Id>::Assoc { = note: for more information, see issue #124559 <https://github.com/rust-lang/rust/issues/124559> = note: implementing a foreign trait is only possible if at least one of the types for which it is implemented is local, and no uncovered type parameters appear before that first local type = note: in this case, 'before' refers to the following order: `impl<..> ForeignTrait<T1, ..., Tn> for T0`, where `T0` is the first and `Tn` is the last - = note: `#[warn(uncovered_param_in_projection)]` on by default + = note: `#[warn(uncovered_param_in_projection)]` (part of `#[warn(future_incompatible)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coherence/orphan-check-projections-not-covering-ambiguity.classic.stderr b/tests/ui/coherence/orphan-check-projections-not-covering-ambiguity.classic.stderr index d83a56c0bd0..464413e9f38 100644 --- a/tests/ui/coherence/orphan-check-projections-not-covering-ambiguity.classic.stderr +++ b/tests/ui/coherence/orphan-check-projections-not-covering-ambiguity.classic.stderr @@ -8,7 +8,7 @@ LL | impl<T> foreign::Trait1<Local, T> for <T as Project>::Output {} = note: for more information, see issue #124559 <https://github.com/rust-lang/rust/issues/124559> = note: implementing a foreign trait is only possible if at least one of the types for which it is implemented is local, and no uncovered type parameters appear before that first local type = note: in this case, 'before' refers to the following order: `impl<..> ForeignTrait<T1, ..., Tn> for T0`, where `T0` is the first and `Tn` is the last - = note: `#[warn(uncovered_param_in_projection)]` on by default + = note: `#[warn(uncovered_param_in_projection)]` (part of `#[warn(future_incompatible)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coherence/orphan-check-projections-not-covering-ambiguity.next.stderr b/tests/ui/coherence/orphan-check-projections-not-covering-ambiguity.next.stderr index d83a56c0bd0..464413e9f38 100644 --- a/tests/ui/coherence/orphan-check-projections-not-covering-ambiguity.next.stderr +++ b/tests/ui/coherence/orphan-check-projections-not-covering-ambiguity.next.stderr @@ -8,7 +8,7 @@ LL | impl<T> foreign::Trait1<Local, T> for <T as Project>::Output {} = note: for more information, see issue #124559 <https://github.com/rust-lang/rust/issues/124559> = note: implementing a foreign trait is only possible if at least one of the types for which it is implemented is local, and no uncovered type parameters appear before that first local type = note: in this case, 'before' refers to the following order: `impl<..> ForeignTrait<T1, ..., Tn> for T0`, where `T0` is the first and `Tn` is the last - = note: `#[warn(uncovered_param_in_projection)]` on by default + = note: `#[warn(uncovered_param_in_projection)]` (part of `#[warn(future_incompatible)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coherence/orphan-check-projections-not-covering-multiple-params.classic.stderr b/tests/ui/coherence/orphan-check-projections-not-covering-multiple-params.classic.stderr index 8964fefedd4..0465fad2119 100644 --- a/tests/ui/coherence/orphan-check-projections-not-covering-multiple-params.classic.stderr +++ b/tests/ui/coherence/orphan-check-projections-not-covering-multiple-params.classic.stderr @@ -8,7 +8,7 @@ LL | impl<T, U> foreign::Trait0<LocalTy, T, U> for <() as Trait<T, U>>::Assoc {} = note: for more information, see issue #124559 <https://github.com/rust-lang/rust/issues/124559> = note: implementing a foreign trait is only possible if at least one of the types for which it is implemented is local, and no uncovered type parameters appear before that first local type = note: in this case, 'before' refers to the following order: `impl<..> ForeignTrait<T1, ..., Tn> for T0`, where `T0` is the first and `Tn` is the last - = note: `#[warn(uncovered_param_in_projection)]` on by default + = note: `#[warn(uncovered_param_in_projection)]` (part of `#[warn(future_incompatible)]`) on by default warning[E0210]: type parameter `U` must be covered by another type when it appears before the first local type (`LocalTy`) --> $DIR/orphan-check-projections-not-covering-multiple-params.rs:17:9 diff --git a/tests/ui/coherence/orphan-check-projections-not-covering-multiple-params.next.stderr b/tests/ui/coherence/orphan-check-projections-not-covering-multiple-params.next.stderr index 8964fefedd4..0465fad2119 100644 --- a/tests/ui/coherence/orphan-check-projections-not-covering-multiple-params.next.stderr +++ b/tests/ui/coherence/orphan-check-projections-not-covering-multiple-params.next.stderr @@ -8,7 +8,7 @@ LL | impl<T, U> foreign::Trait0<LocalTy, T, U> for <() as Trait<T, U>>::Assoc {} = note: for more information, see issue #124559 <https://github.com/rust-lang/rust/issues/124559> = note: implementing a foreign trait is only possible if at least one of the types for which it is implemented is local, and no uncovered type parameters appear before that first local type = note: in this case, 'before' refers to the following order: `impl<..> ForeignTrait<T1, ..., Tn> for T0`, where `T0` is the first and `Tn` is the last - = note: `#[warn(uncovered_param_in_projection)]` on by default + = note: `#[warn(uncovered_param_in_projection)]` (part of `#[warn(future_incompatible)]`) on by default warning[E0210]: type parameter `U` must be covered by another type when it appears before the first local type (`LocalTy`) --> $DIR/orphan-check-projections-not-covering-multiple-params.rs:17:9 diff --git a/tests/ui/coherence/orphan-check-projections-not-covering.classic.stderr b/tests/ui/coherence/orphan-check-projections-not-covering.classic.stderr index 28b8c3f4a94..de34ef7cfd3 100644 --- a/tests/ui/coherence/orphan-check-projections-not-covering.classic.stderr +++ b/tests/ui/coherence/orphan-check-projections-not-covering.classic.stderr @@ -8,7 +8,7 @@ LL | impl<T> foreign::Trait0<Local, T, ()> for <T as Identity>::Output {} = note: for more information, see issue #124559 <https://github.com/rust-lang/rust/issues/124559> = note: implementing a foreign trait is only possible if at least one of the types for which it is implemented is local, and no uncovered type parameters appear before that first local type = note: in this case, 'before' refers to the following order: `impl<..> ForeignTrait<T1, ..., Tn> for T0`, where `T0` is the first and `Tn` is the last - = note: `#[warn(uncovered_param_in_projection)]` on by default + = note: `#[warn(uncovered_param_in_projection)]` (part of `#[warn(future_incompatible)]`) on by default warning[E0210]: type parameter `T` must be covered by another type when it appears before the first local type (`Local`) --> $DIR/orphan-check-projections-not-covering.rs:27:6 diff --git a/tests/ui/coherence/orphan-check-projections-not-covering.next.stderr b/tests/ui/coherence/orphan-check-projections-not-covering.next.stderr index 28b8c3f4a94..de34ef7cfd3 100644 --- a/tests/ui/coherence/orphan-check-projections-not-covering.next.stderr +++ b/tests/ui/coherence/orphan-check-projections-not-covering.next.stderr @@ -8,7 +8,7 @@ LL | impl<T> foreign::Trait0<Local, T, ()> for <T as Identity>::Output {} = note: for more information, see issue #124559 <https://github.com/rust-lang/rust/issues/124559> = note: implementing a foreign trait is only possible if at least one of the types for which it is implemented is local, and no uncovered type parameters appear before that first local type = note: in this case, 'before' refers to the following order: `impl<..> ForeignTrait<T1, ..., Tn> for T0`, where `T0` is the first and `Tn` is the last - = note: `#[warn(uncovered_param_in_projection)]` on by default + = note: `#[warn(uncovered_param_in_projection)]` (part of `#[warn(future_incompatible)]`) on by default warning[E0210]: type parameter `T` must be covered by another type when it appears before the first local type (`Local`) --> $DIR/orphan-check-projections-not-covering.rs:27:6 diff --git a/tests/ui/coherence/orphan-check-projections-unsat-bounds.classic.stderr b/tests/ui/coherence/orphan-check-projections-unsat-bounds.classic.stderr index 0346a9d665c..e729bcf225e 100644 --- a/tests/ui/coherence/orphan-check-projections-unsat-bounds.classic.stderr +++ b/tests/ui/coherence/orphan-check-projections-unsat-bounds.classic.stderr @@ -8,7 +8,7 @@ LL | impl<T> foreign::Trait1<LocalTy, T> for <Wrapper<T> as Discard>::Output = note: for more information, see issue #124559 <https://github.com/rust-lang/rust/issues/124559> = note: implementing a foreign trait is only possible if at least one of the types for which it is implemented is local, and no uncovered type parameters appear before that first local type = note: in this case, 'before' refers to the following order: `impl<..> ForeignTrait<T1, ..., Tn> for T0`, where `T0` is the first and `Tn` is the last - = note: `#[warn(uncovered_param_in_projection)]` on by default + = note: `#[warn(uncovered_param_in_projection)]` (part of `#[warn(future_incompatible)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coherence/orphan-check-projections-unsat-bounds.next.stderr b/tests/ui/coherence/orphan-check-projections-unsat-bounds.next.stderr index 0346a9d665c..e729bcf225e 100644 --- a/tests/ui/coherence/orphan-check-projections-unsat-bounds.next.stderr +++ b/tests/ui/coherence/orphan-check-projections-unsat-bounds.next.stderr @@ -8,7 +8,7 @@ LL | impl<T> foreign::Trait1<LocalTy, T> for <Wrapper<T> as Discard>::Output = note: for more information, see issue #124559 <https://github.com/rust-lang/rust/issues/124559> = note: implementing a foreign trait is only possible if at least one of the types for which it is implemented is local, and no uncovered type parameters appear before that first local type = note: in this case, 'before' refers to the following order: `impl<..> ForeignTrait<T1, ..., Tn> for T0`, where `T0` is the first and `Tn` is the last - = note: `#[warn(uncovered_param_in_projection)]` on by default + = note: `#[warn(uncovered_param_in_projection)]` (part of `#[warn(future_incompatible)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/conditional-compilation/cfg-attr-syntax-validation.rs b/tests/ui/conditional-compilation/cfg-attr-syntax-validation.rs index 126a534dc6f..2c84a966f90 100644 --- a/tests/ui/conditional-compilation/cfg-attr-syntax-validation.rs +++ b/tests/ui/conditional-compilation/cfg-attr-syntax-validation.rs @@ -43,7 +43,7 @@ struct S9; macro_rules! generate_s10 { ($expr: expr) => { #[cfg(feature = $expr)] - //~^ ERROR expected unsuffixed literal, found `expr` metavariable + //~^ ERROR expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `expr` metavariable struct S10; } } diff --git a/tests/ui/conditional-compilation/cfg-attr-syntax-validation.stderr b/tests/ui/conditional-compilation/cfg-attr-syntax-validation.stderr index 6acde758ea5..59ff611e066 100644 --- a/tests/ui/conditional-compilation/cfg-attr-syntax-validation.stderr +++ b/tests/ui/conditional-compilation/cfg-attr-syntax-validation.stderr @@ -81,7 +81,7 @@ LL | #[cfg(a = b"hi")] | = note: expected a normal string literal, not a byte string literal -error: expected unsuffixed literal, found `expr` metavariable +error: expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `expr` metavariable --> $DIR/cfg-attr-syntax-validation.rs:45:25 | LL | #[cfg(feature = $expr)] diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_bad_empty_array.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_bad_empty_array.stderr index 9220cd1f94e..373ac9435da 100644 --- a/tests/ui/const-generics/adt_const_params/const_param_ty_bad_empty_array.stderr +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_bad_empty_array.stderr @@ -2,8 +2,13 @@ error[E0277]: `NotParam` can't be used as a const parameter type --> $DIR/const_param_ty_bad_empty_array.rs:10:13 | LL | check::<[NotParam; 0]>(); - | ^^^^^^^^^^^^^ the trait `ConstParamTy_` is not implemented for `NotParam` + | ^^^^^^^^^^^^^ unsatisfied trait bound | +help: the trait `ConstParamTy_` is not implemented for `NotParam` + --> $DIR/const_param_ty_bad_empty_array.rs:5:1 + | +LL | struct NotParam; + | ^^^^^^^^^^^^^^^ = note: required for `[NotParam; 0]` to implement `ConstParamTy_` note: required by a bound in `check` --> $DIR/const_param_ty_bad_empty_array.rs:7:13 diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_generic_bounds_do_not_hold.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_generic_bounds_do_not_hold.stderr index d01aaffe8ae..158e76630f3 100644 --- a/tests/ui/const-generics/adt_const_params/const_param_ty_generic_bounds_do_not_hold.stderr +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_generic_bounds_do_not_hold.stderr @@ -2,8 +2,13 @@ error[E0277]: `NotParam` can't be used as a const parameter type --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:10:13 | LL | check::<&NotParam>(); - | ^^^^^^^^^ the trait `UnsizedConstParamTy` is not implemented for `NotParam` + | ^^^^^^^^^ unsatisfied trait bound | +help: the trait `UnsizedConstParamTy` is not implemented for `NotParam` + --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:5:1 + | +LL | struct NotParam; + | ^^^^^^^^^^^^^^^ = note: required for `&NotParam` to implement `UnsizedConstParamTy` note: required by a bound in `check` --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:7:13 @@ -15,8 +20,13 @@ error[E0277]: `NotParam` can't be used as a const parameter type --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:11:13 | LL | check::<[NotParam]>(); - | ^^^^^^^^^^ the trait `UnsizedConstParamTy` is not implemented for `NotParam` + | ^^^^^^^^^^ unsatisfied trait bound + | +help: the trait `UnsizedConstParamTy` is not implemented for `NotParam` + --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:5:1 | +LL | struct NotParam; + | ^^^^^^^^^^^^^^^ = note: required for `[NotParam]` to implement `UnsizedConstParamTy` note: required by a bound in `check` --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:7:13 @@ -28,8 +38,13 @@ error[E0277]: `NotParam` can't be used as a const parameter type --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:12:13 | LL | check::<[NotParam; 17]>(); - | ^^^^^^^^^^^^^^ the trait `UnsizedConstParamTy` is not implemented for `NotParam` + | ^^^^^^^^^^^^^^ unsatisfied trait bound + | +help: the trait `UnsizedConstParamTy` is not implemented for `NotParam` + --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:5:1 | +LL | struct NotParam; + | ^^^^^^^^^^^^^^^ = note: required for `[NotParam; 17]` to implement `UnsizedConstParamTy` note: required by a bound in `check` --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:7:13 diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.stderr index b651cca3216..d3141381db8 100644 --- a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.stderr +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.stderr @@ -16,8 +16,13 @@ error[E0277]: the type `CantParam` does not `#[derive(PartialEq)]` --> $DIR/const_param_ty_impl_no_structural_eq.rs:10:43 | LL | impl std::marker::UnsizedConstParamTy for CantParam {} - | ^^^^^^^^^ the trait `StructuralPartialEq` is not implemented for `CantParam` + | ^^^^^^^^^ unsatisfied trait bound | +help: the trait `StructuralPartialEq` is not implemented for `CantParam` + --> $DIR/const_param_ty_impl_no_structural_eq.rs:8:1 + | +LL | struct CantParam(ImplementsConstParamTy); + | ^^^^^^^^^^^^^^^^ note: required by a bound in `UnsizedConstParamTy` --> $SRC_DIR/core/src/marker.rs:LL:COL @@ -39,8 +44,13 @@ error[E0277]: the type `CantParamDerive` does not `#[derive(PartialEq)]` --> $DIR/const_param_ty_impl_no_structural_eq.rs:14:10 | LL | #[derive(std::marker::UnsizedConstParamTy)] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `StructuralPartialEq` is not implemented for `CantParamDerive` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | +help: the trait `StructuralPartialEq` is not implemented for `CantParamDerive` + --> $DIR/const_param_ty_impl_no_structural_eq.rs:17:1 + | +LL | struct CantParamDerive(ImplementsConstParamTy); + | ^^^^^^^^^^^^^^^^^^^^^^ note: required by a bound in `UnsizedConstParamTy` --> $SRC_DIR/core/src/marker.rs:LL:COL diff --git a/tests/ui/const-generics/defaults/rp_impl_trait_fail.stderr b/tests/ui/const-generics/defaults/rp_impl_trait_fail.stderr index e36f645b263..65c480d7c49 100644 --- a/tests/ui/const-generics/defaults/rp_impl_trait_fail.stderr +++ b/tests/ui/const-generics/defaults/rp_impl_trait_fail.stderr @@ -2,11 +2,16 @@ error[E0277]: the trait bound `Uwu<10, 12>: Trait` is not satisfied --> $DIR/rp_impl_trait_fail.rs:6:14 | LL | fn rawr() -> impl Trait { - | ^^^^^^^^^^ the trait `Trait` is not implemented for `Uwu<10, 12>` + | ^^^^^^^^^^ unsatisfied trait bound LL | LL | Uwu::<10, 12> | ------------- return type was inferred to be `Uwu<10, 12>` here | +help: the trait `Trait` is not implemented for `Uwu<10, 12>` + --> $DIR/rp_impl_trait_fail.rs:1:1 + | +LL | struct Uwu<const N: u32 = 1, const M: u32 = N>; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = help: the trait `Trait` is implemented for `Uwu<N>` error[E0277]: the trait bound `u32: Traitor<N>` is not satisfied diff --git a/tests/ui/const-generics/dyn-supertraits.stderr b/tests/ui/const-generics/dyn-supertraits.stderr index 38b67ef4403..2b59cdb9418 100644 --- a/tests/ui/const-generics/dyn-supertraits.stderr +++ b/tests/ui/const-generics/dyn-supertraits.stderr @@ -4,7 +4,7 @@ warning: trait `Baz` is never used LL | trait Baz: Foo<3> {} | ^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: trait `Boz` is never used --> $DIR/dyn-supertraits.rs:26:7 diff --git a/tests/ui/const-generics/generic_const_exprs/dependence_lint.full.stderr b/tests/ui/const-generics/generic_const_exprs/dependence_lint.full.stderr index 6b095f3818a..23e126d8702 100644 --- a/tests/ui/const-generics/generic_const_exprs/dependence_lint.full.stderr +++ b/tests/ui/const-generics/generic_const_exprs/dependence_lint.full.stderr @@ -24,7 +24,7 @@ LL | [0; size_of::<*mut T>()]; // lint on stable, error with `generic_const_ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #76200 <https://github.com/rust-lang/rust/issues/76200> - = note: `#[warn(const_evaluatable_unchecked)]` on by default + = note: `#[warn(const_evaluatable_unchecked)]` (part of `#[warn(future_incompatible)]`) on by default warning: cannot use constants which depend on generic parameters in types --> $DIR/dependence_lint.rs:18:9 diff --git a/tests/ui/const-generics/generic_const_exprs/function-call.stderr b/tests/ui/const-generics/generic_const_exprs/function-call.stderr index 84abfe57876..806bc3e89a9 100644 --- a/tests/ui/const-generics/generic_const_exprs/function-call.stderr +++ b/tests/ui/const-generics/generic_const_exprs/function-call.stderr @@ -6,7 +6,7 @@ LL | let _ = [0; foo::<T>()]; | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #76200 <https://github.com/rust-lang/rust/issues/76200> - = note: `#[warn(const_evaluatable_unchecked)]` on by default + = note: `#[warn(const_evaluatable_unchecked)]` (part of `#[warn(future_incompatible)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/const-generics/generic_const_exprs/unevaluated-const-ice-119731.stderr b/tests/ui/const-generics/generic_const_exprs/unevaluated-const-ice-119731.stderr index cf0bdd0e9a1..453079e3c15 100644 --- a/tests/ui/const-generics/generic_const_exprs/unevaluated-const-ice-119731.stderr +++ b/tests/ui/const-generics/generic_const_exprs/unevaluated-const-ice-119731.stderr @@ -46,7 +46,7 @@ warning: type `v11` should have an upper camel case name LL | pub type v11 = [[usize; v4]; v4]; | ^^^ help: convert the identifier to upper camel case (notice the capitalization): `V11` | - = note: `#[warn(non_camel_case_types)]` on by default + = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default warning: type `v17` should have an upper camel case name --> $DIR/unevaluated-const-ice-119731.rs:16:16 diff --git a/tests/ui/const-generics/invariant.stderr b/tests/ui/const-generics/invariant.stderr index b4e46e55268..095219f6e5f 100644 --- a/tests/ui/const-generics/invariant.stderr +++ b/tests/ui/const-generics/invariant.stderr @@ -10,7 +10,7 @@ LL | impl SadBee for fn(&'static ()) { = warning: the behavior may change in a future release = note: for more information, see issue #56105 <https://github.com/rust-lang/rust/issues/56105> = note: this behavior recently changed as a result of a bug fix; see rust-lang/rust#56105 for details - = note: `#[warn(coherence_leak_check)]` on by default + = note: `#[warn(coherence_leak_check)]` (part of `#[warn(future_incompatible)]`) on by default error[E0308]: mismatched types --> $DIR/invariant.rs:25:5 diff --git a/tests/ui/const-generics/issues/issue-69654-run-pass.stderr b/tests/ui/const-generics/issues/issue-69654-run-pass.stderr index 7b3cd4f375f..abde9a95f89 100644 --- a/tests/ui/const-generics/issues/issue-69654-run-pass.stderr +++ b/tests/ui/const-generics/issues/issue-69654-run-pass.stderr @@ -4,7 +4,7 @@ warning: trait `Bar` is never used LL | trait Bar<T> {} | ^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/const-generics/issues/issue-83466.stderr b/tests/ui/const-generics/issues/issue-83466.stderr index 91451a799b0..5a0f5cbd131 100644 --- a/tests/ui/const-generics/issues/issue-83466.stderr +++ b/tests/ui/const-generics/issues/issue-83466.stderr @@ -9,7 +9,7 @@ LL | S.func::<'a, 10_u32>() | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868> - = note: `#[warn(late_bound_lifetime_arguments)]` on by default + = note: `#[warn(late_bound_lifetime_arguments)]` (part of `#[warn(future_incompatible)]`) on by default error[E0747]: constant provided when a type was expected --> $DIR/issue-83466.rs:11:18 diff --git a/tests/ui/const-generics/issues/issue-86535-2.stderr b/tests/ui/const-generics/issues/issue-86535-2.stderr index 0ba74836575..870d97d7d2e 100644 --- a/tests/ui/const-generics/issues/issue-86535-2.stderr +++ b/tests/ui/const-generics/issues/issue-86535-2.stderr @@ -4,7 +4,7 @@ warning: struct `Bar` is never constructed LL | struct Bar<const N: &'static ()>; | ^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/const-generics/issues/issue-86535.stderr b/tests/ui/const-generics/issues/issue-86535.stderr index 84d6c1c11ff..6bb362de261 100644 --- a/tests/ui/const-generics/issues/issue-86535.stderr +++ b/tests/ui/const-generics/issues/issue-86535.stderr @@ -4,7 +4,7 @@ warning: struct `F` is never constructed LL | struct F<const S: &'static str>; | ^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/const-generics/min_const_generics/complex-expression.stderr b/tests/ui/const-generics/min_const_generics/complex-expression.stderr index 35039bb4109..ed3fa840cdf 100644 --- a/tests/ui/const-generics/min_const_generics/complex-expression.stderr +++ b/tests/ui/const-generics/min_const_generics/complex-expression.stderr @@ -69,7 +69,7 @@ LL | let _ = [0; size_of::<*mut T>() + 1]; | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #76200 <https://github.com/rust-lang/rust/issues/76200> - = note: `#[warn(const_evaluatable_unchecked)]` on by default + = note: `#[warn(const_evaluatable_unchecked)]` (part of `#[warn(future_incompatible)]`) on by default error: aborting due to 7 previous errors; 1 warning emitted diff --git a/tests/ui/const-generics/min_const_generics/const-evaluatable-unchecked.stderr b/tests/ui/const-generics/min_const_generics/const-evaluatable-unchecked.stderr index 8003dfa4071..cf72c0aa0df 100644 --- a/tests/ui/const-generics/min_const_generics/const-evaluatable-unchecked.stderr +++ b/tests/ui/const-generics/min_const_generics/const-evaluatable-unchecked.stderr @@ -6,7 +6,7 @@ LL | [0; std::mem::size_of::<*mut T>()]; | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #76200 <https://github.com/rust-lang/rust/issues/76200> - = note: `#[warn(const_evaluatable_unchecked)]` on by default + = note: `#[warn(const_evaluatable_unchecked)]` (part of `#[warn(future_incompatible)]`) on by default warning: cannot use constants which depend on generic parameters in types --> $DIR/const-evaluatable-unchecked.rs:17:21 diff --git a/tests/ui/const-generics/occurs-check/unused-substs-1.stderr b/tests/ui/const-generics/occurs-check/unused-substs-1.stderr index 07e86aa17f2..70fc71c99b9 100644 --- a/tests/ui/const-generics/occurs-check/unused-substs-1.stderr +++ b/tests/ui/const-generics/occurs-check/unused-substs-1.stderr @@ -2,7 +2,7 @@ error[E0277]: the trait bound `A<_>: Bar<_>` is not satisfied --> $DIR/unused-substs-1.rs:12:13 | LL | let _ = A; - | ^ the trait `Bar<_>` is not implemented for `A<_>` + | ^ unsatisfied trait bound | = help: the trait `Bar<_>` is not implemented for `A<_>` but it is implemented for `A<{ 6 + 1 }>` diff --git a/tests/ui/const-generics/transmute-fail.stderr b/tests/ui/const-generics/transmute-fail.stderr index 0e26daa3a0f..953119a8c34 100644 --- a/tests/ui/const-generics/transmute-fail.stderr +++ b/tests/ui/const-generics/transmute-fail.stderr @@ -6,6 +6,14 @@ LL | fn bar<const W: bool, const H: usize>(v: [[u32; H]; W]) -> [[u32; W]; H] { | = note: the length of array `[[u32; H]; W]` must be type `usize` +error: the constant `W` is not of type `usize` + --> $DIR/transmute-fail.rs:19:9 + | +LL | std::mem::transmute(v) + | ^^^^^^^^^^^^^^^^^^^ expected `usize`, found `bool` + | + = note: the length of array `[[u32; H]; W]` must be type `usize` + error[E0512]: cannot transmute between types of different sizes, or dependently-sized types --> $DIR/transmute-fail.rs:11:9 | @@ -15,14 +23,6 @@ LL | std::mem::transmute(v) = note: source type: `[[u32; H + 1]; W]` (size can vary because of [u32; H + 1]) = note: target type: `[[u32; W + 1]; H]` (size can vary because of [u32; W + 1]) -error: the constant `W` is not of type `usize` - --> $DIR/transmute-fail.rs:19:9 - | -LL | std::mem::transmute(v) - | ^^^^^^^^^^^^^^^^^^^ expected `usize`, found `bool` - | - = note: the length of array `[[u32; H]; W]` must be type `usize` - error[E0512]: cannot transmute between types of different sizes, or dependently-sized types --> $DIR/transmute-fail.rs:26:9 | diff --git a/tests/ui/const-generics/type-dependent/issue-71348.full.stderr b/tests/ui/const-generics/type-dependent/issue-71348.full.stderr index 32fa46b92b3..299ae680093 100644 --- a/tests/ui/const-generics/type-dependent/issue-71348.full.stderr +++ b/tests/ui/const-generics/type-dependent/issue-71348.full.stderr @@ -1,8 +1,8 @@ warning: hiding a lifetime that's named elsewhere is confusing - --> $DIR/issue-71348.rs:18:40 + --> $DIR/issue-71348.rs:18:56 | LL | fn ask<'a, const N: &'static str>(&'a self) -> &'a <Self as Get<N>>::Target - | ^^ -- ------------------------ the same lifetime is hidden here + | -- -- ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here | | | | | the same lifetime is named here | the lifetime is named here diff --git a/tests/ui/consts/const-block-item.stderr b/tests/ui/consts/const-block-item.stderr index 04658742b56..b325976a60b 100644 --- a/tests/ui/consts/const-block-item.stderr +++ b/tests/ui/consts/const-block-item.stderr @@ -4,7 +4,7 @@ warning: trait `Value` is never used LL | pub trait Value { | ^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/consts/const-eval/const_panic_stability.e2018.stderr b/tests/ui/consts/const-eval/const_panic_stability.e2018.stderr index b3ccd2459aa..943695d75fc 100644 --- a/tests/ui/consts/const-eval/const_panic_stability.e2018.stderr +++ b/tests/ui/consts/const-eval/const_panic_stability.e2018.stderr @@ -6,7 +6,7 @@ LL | panic!({ "foo" }); | = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html> - = note: `#[warn(non_fmt_panics)]` on by default + = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: add a "{}" format string to `Display` the message | LL | panic!("{}", { "foo" }); diff --git a/tests/ui/issues/issue-76191.rs b/tests/ui/consts/const-range-matching-76191.rs index d2de44380c3..b579a4b3258 100644 --- a/tests/ui/issues/issue-76191.rs +++ b/tests/ui/consts/const-range-matching-76191.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/76191 // Regression test for diagnostic issue #76191 #![allow(non_snake_case)] diff --git a/tests/ui/issues/issue-76191.stderr b/tests/ui/consts/const-range-matching-76191.stderr index d8b54be88f4..5c358d0fa1c 100644 --- a/tests/ui/issues/issue-76191.stderr +++ b/tests/ui/consts/const-range-matching-76191.stderr @@ -1,11 +1,11 @@ error[E0080]: evaluation panicked: explicit panic - --> $DIR/issue-76191.rs:8:37 + --> $DIR/const-range-matching-76191.rs:9:37 | LL | const RANGE2: RangeInclusive<i32> = panic!(); | ^^^^^^^^ evaluation of `RANGE2` failed here error[E0308]: mismatched types - --> $DIR/issue-76191.rs:14:9 + --> $DIR/const-range-matching-76191.rs:15:9 | LL | const RANGE: RangeInclusive<i32> = 0..=255; | -------------------------------- constant defined here @@ -27,7 +27,7 @@ LL + 0..=255 => {} | error[E0308]: mismatched types - --> $DIR/issue-76191.rs:16:9 + --> $DIR/const-range-matching-76191.rs:17:9 | LL | const RANGE2: RangeInclusive<i32> = panic!(); | --------------------------------- constant defined here diff --git a/tests/ui/consts/const_let_assign2.stderr b/tests/ui/consts/const_let_assign2.stderr index e8bed6d0724..ad3587b7134 100644 --- a/tests/ui/consts/const_let_assign2.stderr +++ b/tests/ui/consts/const_let_assign2.stderr @@ -6,7 +6,7 @@ LL | let ptr = unsafe { &mut BB }; | = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html> = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives - = note: `#[warn(static_mut_refs)]` on by default + = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `&raw mut` instead to create a raw pointer | LL | let ptr = unsafe { &raw mut BB }; diff --git a/tests/ui/consts/const_refs_to_static-ice-121413.stderr b/tests/ui/consts/const_refs_to_static-ice-121413.stderr index e354110f293..ea3daca51ef 100644 --- a/tests/ui/consts/const_refs_to_static-ice-121413.stderr +++ b/tests/ui/consts/const_refs_to_static-ice-121413.stderr @@ -17,7 +17,7 @@ LL | static FOO: Sync = AtomicUsize::new(0); | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | static FOO: dyn Sync = AtomicUsize::new(0); diff --git a/tests/ui/consts/packed_pattern.stderr b/tests/ui/consts/packed_pattern.stderr index dc26078fb63..83bb3e5b6a7 100644 --- a/tests/ui/consts/packed_pattern.stderr +++ b/tests/ui/consts/packed_pattern.stderr @@ -6,7 +6,7 @@ LL | Foo { field: (5, 6, 7, 8) } => {}, LL | FOO => unreachable!(), | ^^^ no value can reach this | - = note: `#[warn(unreachable_patterns)]` on by default + = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/consts/packed_pattern2.stderr b/tests/ui/consts/packed_pattern2.stderr index 013f61f733c..8a09e708cb7 100644 --- a/tests/ui/consts/packed_pattern2.stderr +++ b/tests/ui/consts/packed_pattern2.stderr @@ -6,7 +6,7 @@ LL | Bar { a: Foo { field: (5, 6) } } => {}, LL | FOO => unreachable!(), | ^^^ no value can reach this | - = note: `#[warn(unreachable_patterns)]` on by default + = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/consts/ptr_comparisons.rs b/tests/ui/consts/ptr_comparisons.rs index e142ab3a754..b8d809475cf 100644 --- a/tests/ui/consts/ptr_comparisons.rs +++ b/tests/ui/consts/ptr_comparisons.rs @@ -1,43 +1,205 @@ //@ compile-flags: --crate-type=lib //@ check-pass +//@ edition: 2024 +#![feature(const_raw_ptr_comparison)] +#![feature(fn_align)] +// Generally: +// For any `Some` return, `None` would also be valid, unless otherwise noted. +// For any `None` return, only `None` is valid, unless otherwise noted. -#![feature( - core_intrinsics, - const_raw_ptr_comparison, -)] +macro_rules! do_test { + ($a:expr, $b:expr, $expected:pat) => { + const _: () = { + let a: *const _ = $a; + let b: *const _ = $b; + assert!(matches!(<*const u8>::guaranteed_eq(a.cast(), b.cast()), $expected)); + }; + }; +} -const FOO: &usize = &42; +#[repr(align(2))] +struct T(#[allow(unused)] u16); -macro_rules! check { - (eq, $a:expr, $b:expr) => { - pub const _: () = - assert!(std::intrinsics::ptr_guaranteed_cmp($a as *const u8, $b as *const u8) == 1); - }; - (ne, $a:expr, $b:expr) => { - pub const _: () = - assert!(std::intrinsics::ptr_guaranteed_cmp($a as *const u8, $b as *const u8) == 0); +#[repr(align(2))] +struct AlignedZst; + +static A: T = T(42); +static B: T = T(42); +static mut MUT_STATIC: T = T(42); +static ZST: () = (); +static ALIGNED_ZST: AlignedZst = AlignedZst; +static LARGE_WORD_ALIGNED: [usize; 2] = [0, 1]; +static mut MUT_LARGE_WORD_ALIGNED: [usize; 2] = [0, 1]; + +const FN_PTR: *const () = { + fn foo() {} + unsafe { std::mem::transmute(foo as fn()) } +}; + +const ALIGNED_FN_PTR: *const () = { + #[rustc_align(2)] + fn aligned_foo() {} + unsafe { std::mem::transmute(aligned_foo as fn()) } +}; + +trait Trait { + #[allow(unused)] + fn method(&self) -> u8; +} +impl Trait for u32 { + fn method(&self) -> u8 { 1 } +} +impl Trait for i32 { + fn method(&self) -> u8 { 2 } +} + +const VTABLE_PTR_1: *const () = { + let [_data, vtable] = unsafe { + std::mem::transmute::<&dyn Trait, [*const (); 2]>(&42_u32 as &dyn Trait) }; - (!, $a:expr, $b:expr) => { - pub const _: () = - assert!(std::intrinsics::ptr_guaranteed_cmp($a as *const u8, $b as *const u8) == 2); + vtable +}; +const VTABLE_PTR_2: *const () = { + let [_data, vtable] = unsafe { + std::mem::transmute::<&dyn Trait, [*const (); 2]>(&42_i32 as &dyn Trait) }; -} + vtable +}; -check!(eq, 0, 0); -check!(ne, 0, 1); -check!(ne, FOO as *const _, 0); -check!(ne, unsafe { (FOO as *const usize).offset(1) }, 0); -check!(ne, unsafe { (FOO as *const usize as *const u8).offset(3) }, 0); +// Cannot be `None`: `is_null` is stable with strong guarantees about integer-valued pointers. +do_test!(0 as *const u8, 0 as *const u8, Some(true)); +do_test!(0 as *const u8, 1 as *const u8, Some(false)); -// We want pointers to be equal to themselves, but aren't checking this yet because -// there are some open questions (e.g. whether function pointers to the same function -// compare equal: they don't necessarily do at runtime). -check!(!, FOO as *const _, FOO as *const _); +// Integer-valued pointers can always be compared. +do_test!(1 as *const u8, 1 as *const u8, Some(true)); +do_test!(1 as *const u8, 2 as *const u8, Some(false)); + +// Cannot be `None`: `static`s' addresses, references, (and within and one-past-the-end of those), +// and `fn` pointers cannot be null, and `is_null` is stable with strong guarantees, and +// `is_null` is implemented using `guaranteed_cmp`. +do_test!(&A, 0 as *const u8, Some(false)); +do_test!((&raw const A).cast::<u8>().wrapping_add(1), 0 as *const u8, Some(false)); +do_test!((&raw const A).wrapping_add(1), 0 as *const u8, Some(false)); +do_test!(&ZST, 0 as *const u8, Some(false)); +do_test!(&(), 0 as *const u8, Some(false)); +do_test!(const { &() }, 0 as *const u8, Some(false)); +do_test!(FN_PTR, 0 as *const u8, Some(false)); + +// This pointer is out-of-bounds, but still cannot be equal to 0 because of alignment. +do_test!((&raw const A).cast::<u8>().wrapping_add(size_of::<T>() + 1), 0 as *const u8, Some(false)); // aside from 0, these pointers might end up pretty much anywhere. -check!(!, FOO as *const _, 1); // this one could be `ne` by taking into account alignment -check!(!, FOO as *const _, 1024); +do_test!(&A, align_of::<T>() as *const u8, None); +do_test!((&raw const A).wrapping_byte_add(1), (align_of::<T>() + 1) as *const u8, None); + +// except that they must still be aligned +do_test!(&A, 1 as *const u8, Some(false)); +do_test!((&raw const A).wrapping_byte_add(1), align_of::<T>() as *const u8, Some(false)); + +// If `ptr.wrapping_sub(int)` cannot be null (because it is in-bounds or one-past-the-end of +// `ptr`'s allocation, or because it is misaligned from `ptr`'s allocation), then we know that +// `ptr != int`, even if `ptr` itself is out-of-bounds or one-past-the-end of its allocation. +do_test!((&raw const A).wrapping_byte_add(1), 1 as *const u8, Some(false)); +do_test!((&raw const A).wrapping_byte_add(2), 2 as *const u8, Some(false)); +do_test!((&raw const A).wrapping_byte_add(3), 1 as *const u8, Some(false)); +do_test!((&raw const ZST).wrapping_byte_add(1), 1 as *const u8, Some(false)); +do_test!(VTABLE_PTR_1.wrapping_byte_add(1), 1 as *const u8, Some(false)); +do_test!(FN_PTR.wrapping_byte_add(1), 1 as *const u8, Some(false)); +do_test!(&A, size_of::<T>().wrapping_neg() as *const u8, Some(false)); +do_test!(&LARGE_WORD_ALIGNED, size_of::<usize>().wrapping_neg() as *const u8, Some(false)); +// (`ptr - int != 0` due to misalignment) +do_test!((&raw const A).wrapping_byte_add(2), 1 as *const u8, Some(false)); +do_test!((&raw const ALIGNED_ZST).wrapping_byte_add(2), 1 as *const u8, Some(false)); // When pointers go out-of-bounds, they *might* become null, so these comparions cannot work. -check!(!, unsafe { (FOO as *const usize).wrapping_add(2) }, 0); -check!(!, unsafe { (FOO as *const usize).wrapping_sub(1) }, 0); +do_test!((&raw const A).wrapping_add(2), 0 as *const u8, None); +do_test!((&raw const A).wrapping_sub(1), 0 as *const u8, None); + +// Statics cannot be duplicated +do_test!(&A, &A, Some(true)); + +// Two non-ZST statics cannot have the same address +do_test!(&A, &B, Some(false)); +do_test!(&A, &raw const MUT_STATIC, Some(false)); + +// One-past-the-end of one static can be equal to the address of another static. +do_test!(&A, (&raw const B).wrapping_add(1), None); + +// Cannot know if ZST static is at the same address with anything non-null (if alignment allows). +do_test!(&A, &ZST, None); +do_test!(&A, &ALIGNED_ZST, None); + +// Unclear if ZST statics can be placed "in the middle of" non-ZST statics. +// For now, we conservatively say they could, and return None here. +do_test!(&ZST, (&raw const A).wrapping_byte_add(1), None); + +// As per https://doc.rust-lang.org/nightly/reference/items/static-items.html#r-items.static.storage-disjointness +// immutable statics are allowed to overlap with const items and promoteds. +do_test!(&A, &T(42), None); +do_test!(&A, const { &T(42) }, None); +do_test!(&A, { const X: T = T(42); &X }, None); + +// These could return Some(false), since only immutable statics can overlap with const items +// and promoteds. +do_test!(&raw const MUT_STATIC, &T(42), None); +do_test!(&raw const MUT_STATIC, const { &T(42) }, None); +do_test!(&raw const MUT_STATIC, { const X: T = T(42); &X }, None); + +// An odd offset from a 2-aligned allocation can never be equal to an even offset from a +// 2-aligned allocation, even if the offsets are out-of-bounds. +do_test!(&A, (&raw const B).wrapping_byte_add(1), Some(false)); +do_test!(&A, (&raw const B).wrapping_byte_add(5), Some(false)); +do_test!(&A, (&raw const ALIGNED_ZST).wrapping_byte_add(1), Some(false)); +do_test!(&ALIGNED_ZST, (&raw const A).wrapping_byte_add(1), Some(false)); +do_test!(&A, (&T(42) as *const T).wrapping_byte_add(1), Some(false)); +do_test!(&A, (const { &T(42) } as *const T).wrapping_byte_add(1), Some(false)); +do_test!(&A, ({ const X: T = T(42); &X } as *const T).wrapping_byte_add(1), Some(false)); + +// We could return `Some(false)` for these, as pointers to different statics can never be equal if +// that would require the statics to overlap, even if the pointers themselves are offset out of +// bounds or one-past-the-end. We currently only check strictly in-bounds pointers when comparing +// pointers to different statics, however. +do_test!((&raw const A).wrapping_add(1), (&raw const B).wrapping_add(1), None); +do_test!( + (&raw const LARGE_WORD_ALIGNED).cast::<usize>().wrapping_add(2), + (&raw const MUT_LARGE_WORD_ALIGNED).cast::<usize>().wrapping_add(1), + None +); + +// Pointers into the same static are equal if and only if their offset is the same, +// even if either is out-of-bounds. +do_test!(&A, &A, Some(true)); +do_test!(&A, &A.0, Some(true)); +do_test!(&A, (&raw const A).wrapping_byte_add(1), Some(false)); +do_test!(&A, (&raw const A).wrapping_byte_add(2), Some(false)); +do_test!(&A, (&raw const A).wrapping_byte_add(51), Some(false)); +do_test!((&raw const A).wrapping_byte_add(51), (&raw const A).wrapping_byte_add(51), Some(true)); + +// Pointers to the same fn may be unequal, since `fn`s can be duplicated. +do_test!(FN_PTR, FN_PTR, None); +do_test!(ALIGNED_FN_PTR, ALIGNED_FN_PTR, None); + +// Pointers to different fns may be equal, since `fn`s can be deduplicated. +do_test!(FN_PTR, ALIGNED_FN_PTR, None); + +// Pointers to the same vtable may be unequal, since vtables can be duplicated. +do_test!(VTABLE_PTR_1, VTABLE_PTR_1, None); + +// Pointers to different vtables may be equal, since vtables can be deduplicated. +do_test!(VTABLE_PTR_1, VTABLE_PTR_2, None); + +// Function pointers to aligned function allocations are not necessarily actually aligned, +// due to platform-specific semantics. +// See https://github.com/rust-lang/rust/issues/144661 +// FIXME: This could return `Some` on platforms where function pointers' addresses actually +// correspond to function addresses including alignment, or on platforms where all functions +// are aligned to some amount (e.g. ARM where a32 function pointers are at least 4-aligned, +// and t32 function pointers are 2-aligned-offset-by-1). +do_test!(ALIGNED_FN_PTR, ALIGNED_FN_PTR.wrapping_byte_offset(1), None); + +// Conservatively say we don't know. +do_test!(FN_PTR, VTABLE_PTR_1, None); +do_test!((&raw const LARGE_WORD_ALIGNED).cast::<usize>().wrapping_add(1), VTABLE_PTR_1, None); +do_test!((&raw const MUT_LARGE_WORD_ALIGNED).cast::<usize>().wrapping_add(1), VTABLE_PTR_1, None); +do_test!((&raw const LARGE_WORD_ALIGNED).cast::<usize>().wrapping_add(1), FN_PTR, None); +do_test!((&raw const MUT_LARGE_WORD_ALIGNED).cast::<usize>().wrapping_add(1), FN_PTR, None); diff --git a/tests/ui/consts/transmute-size-mismatch-before-typeck.rs b/tests/ui/consts/transmute-size-mismatch-before-typeck.rs index ffb143da2d4..4e0b12b9021 100644 --- a/tests/ui/consts/transmute-size-mismatch-before-typeck.rs +++ b/tests/ui/consts/transmute-size-mismatch-before-typeck.rs @@ -1,5 +1,9 @@ +//@ normalize-stderr-64bit: "8-byte" -> "word size" +//@ normalize-stderr-32bit: "4-byte" -> "word size" //@ normalize-stderr-64bit: "64 bits" -> "word size" //@ normalize-stderr-32bit: "32 bits" -> "word size" +//@ normalize-stderr-64bit: "16-byte" -> "2 * word size" +//@ normalize-stderr-32bit: "8-byte" -> "2 * word size" //@ normalize-stderr-64bit: "128 bits" -> "2 * word size" //@ normalize-stderr-32bit: "64 bits" -> "2 * word size" @@ -10,4 +14,5 @@ fn main() { } const ZST: &[u8] = unsafe { std::mem::transmute(1usize) }; -//~^ ERROR cannot transmute between types of different sizes +//~^ ERROR transmuting from +//~| ERROR cannot transmute between types of different sizes diff --git a/tests/ui/consts/transmute-size-mismatch-before-typeck.stderr b/tests/ui/consts/transmute-size-mismatch-before-typeck.stderr index 6bc7e7203aa..bb847f79ace 100644 --- a/tests/ui/consts/transmute-size-mismatch-before-typeck.stderr +++ b/tests/ui/consts/transmute-size-mismatch-before-typeck.stderr @@ -1,5 +1,11 @@ +error[E0080]: transmuting from word size type to 2 * word size type: `usize` -> `&[u8]` + --> $DIR/transmute-size-mismatch-before-typeck.rs:16:29 + | +LL | const ZST: &[u8] = unsafe { std::mem::transmute(1usize) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `ZST` failed here + error[E0512]: cannot transmute between types of different sizes, or dependently-sized types - --> $DIR/transmute-size-mismatch-before-typeck.rs:12:29 + --> $DIR/transmute-size-mismatch-before-typeck.rs:16:29 | LL | const ZST: &[u8] = unsafe { std::mem::transmute(1usize) }; | ^^^^^^^^^^^^^^^^^^^ @@ -7,6 +13,7 @@ LL | const ZST: &[u8] = unsafe { std::mem::transmute(1usize) }; = note: source type: `usize` (word size) = note: target type: `&[u8]` (2 * word size) -error: aborting due to 1 previous error +error: aborting due to 2 previous errors -For more information about this error, try `rustc --explain E0512`. +Some errors have detailed explanations: E0080, E0512. +For more information about an error, try `rustc --explain E0080`. diff --git a/tests/ui/coroutine/drop-tracking-parent-expression.stderr b/tests/ui/coroutine/drop-tracking-parent-expression.stderr index 2f5fe882f6e..fe8c17c1294 100644 --- a/tests/ui/coroutine/drop-tracking-parent-expression.stderr +++ b/tests/ui/coroutine/drop-tracking-parent-expression.stderr @@ -12,7 +12,11 @@ LL | | }; LL | | ); | |_____- in this macro invocation | - = help: within `{coroutine@$DIR/drop-tracking-parent-expression.rs:19:34: 19:41}`, the trait `Send` is not implemented for `derived_drop::Client` +help: within `{coroutine@$DIR/drop-tracking-parent-expression.rs:19:34: 19:41}`, the trait `Send` is not implemented for `derived_drop::Client` + --> $DIR/drop-tracking-parent-expression.rs:51:46 + | +LL | derived_drop => { #[derive(Default)] pub struct Client { pub nickname: String } }; + | ^^^^^^^^^^^^^^^^^ note: coroutine is not `Send` as this value is used across a yield --> $DIR/drop-tracking-parent-expression.rs:23:22 | @@ -50,7 +54,11 @@ LL | | }; LL | | ); | |_____- in this macro invocation | - = help: within `{coroutine@$DIR/drop-tracking-parent-expression.rs:19:34: 19:41}`, the trait `Send` is not implemented for `significant_drop::Client` +help: within `{coroutine@$DIR/drop-tracking-parent-expression.rs:19:34: 19:41}`, the trait `Send` is not implemented for `significant_drop::Client` + --> $DIR/drop-tracking-parent-expression.rs:55:13 + | +LL | pub struct Client; + | ^^^^^^^^^^^^^^^^^ note: coroutine is not `Send` as this value is used across a yield --> $DIR/drop-tracking-parent-expression.rs:23:22 | @@ -88,7 +96,11 @@ LL | | }; LL | | ); | |_____- in this macro invocation | - = help: within `{coroutine@$DIR/drop-tracking-parent-expression.rs:19:34: 19:41}`, the trait `Send` is not implemented for `insignificant_dtor::Client` +help: within `{coroutine@$DIR/drop-tracking-parent-expression.rs:19:34: 19:41}`, the trait `Send` is not implemented for `insignificant_dtor::Client` + --> $DIR/drop-tracking-parent-expression.rs:64:13 + | +LL | pub struct Client; + | ^^^^^^^^^^^^^^^^^ note: coroutine is not `Send` as this value is used across a yield --> $DIR/drop-tracking-parent-expression.rs:23:22 | diff --git a/tests/ui/coroutine/drop-yield-twice.stderr b/tests/ui/coroutine/drop-yield-twice.stderr index c5da35d9736..5ac2b471cb6 100644 --- a/tests/ui/coroutine/drop-yield-twice.stderr +++ b/tests/ui/coroutine/drop-yield-twice.stderr @@ -9,7 +9,11 @@ LL | | yield; LL | | }) | |______^ coroutine is not `Send` | - = help: within `{coroutine@$DIR/drop-yield-twice.rs:7:30: 7:32}`, the trait `Send` is not implemented for `Foo` +help: within `{coroutine@$DIR/drop-yield-twice.rs:7:30: 7:32}`, the trait `Send` is not implemented for `Foo` + --> $DIR/drop-yield-twice.rs:3:1 + | +LL | struct Foo(i32); + | ^^^^^^^^^^ note: coroutine is not `Send` as this value is used across a yield --> $DIR/drop-yield-twice.rs:9:9 | diff --git a/tests/ui/coroutine/gen_block_panic.stderr b/tests/ui/coroutine/gen_block_panic.stderr index a0a6d1063c4..a43c9e03691 100644 --- a/tests/ui/coroutine/gen_block_panic.stderr +++ b/tests/ui/coroutine/gen_block_panic.stderr @@ -6,7 +6,7 @@ LL | panic!("foo"); LL | yield 69; | ^^^^^^^^^ unreachable statement | - = note: `#[warn(unreachable_code)]` on by default + = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coroutine/issue-52398.stderr b/tests/ui/coroutine/issue-52398.stderr index 806690cc332..b3bf2e4a4e6 100644 --- a/tests/ui/coroutine/issue-52398.stderr +++ b/tests/ui/coroutine/issue-52398.stderr @@ -8,7 +8,7 @@ LL | | }; | |_____^ | = note: coroutines are lazy and do nothing unless resumed - = note: `#[warn(unused_must_use)]` on by default + = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default warning: unused coroutine that must be used --> $DIR/issue-52398.rs:24:18 diff --git a/tests/ui/coroutine/issue-57084.stderr b/tests/ui/coroutine/issue-57084.stderr index 81bd27da919..0e2359f2f81 100644 --- a/tests/ui/coroutine/issue-57084.stderr +++ b/tests/ui/coroutine/issue-57084.stderr @@ -11,7 +11,7 @@ LL | | }; | |_____^ | = note: coroutines are lazy and do nothing unless resumed - = note: `#[warn(unused_must_use)]` on by default + = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coroutine/match-bindings.stderr b/tests/ui/coroutine/match-bindings.stderr index 1318e6931f5..98877bbcba5 100644 --- a/tests/ui/coroutine/match-bindings.stderr +++ b/tests/ui/coroutine/match-bindings.stderr @@ -11,7 +11,7 @@ LL | | }; | |_____^ | = note: coroutines are lazy and do nothing unless resumed - = note: `#[warn(unused_must_use)]` on by default + = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coroutine/not-send-sync.stderr b/tests/ui/coroutine/not-send-sync.stderr index c6d2ac0a557..16277edd66a 100644 --- a/tests/ui/coroutine/not-send-sync.stderr +++ b/tests/ui/coroutine/not-send-sync.stderr @@ -9,7 +9,11 @@ LL | | drop(a); LL | | }); | |______^ coroutine is not `Sync` | - = help: within `{coroutine@$DIR/not-send-sync.rs:14:30: 14:32}`, the trait `Sync` is not implemented for `NotSync` +help: within `{coroutine@$DIR/not-send-sync.rs:14:30: 14:32}`, the trait `Sync` is not implemented for `NotSync` + --> $DIR/not-send-sync.rs:5:1 + | +LL | struct NotSync; + | ^^^^^^^^^^^^^^ note: coroutine is not `Sync` as this value is used across a yield --> $DIR/not-send-sync.rs:17:9 | @@ -34,7 +38,11 @@ LL | | drop(a); LL | | }); | |______^ coroutine is not `Send` | - = help: within `{coroutine@$DIR/not-send-sync.rs:21:30: 21:32}`, the trait `Send` is not implemented for `NotSend` +help: within `{coroutine@$DIR/not-send-sync.rs:21:30: 21:32}`, the trait `Send` is not implemented for `NotSend` + --> $DIR/not-send-sync.rs:4:1 + | +LL | struct NotSend; + | ^^^^^^^^^^^^^^ note: coroutine is not `Send` as this value is used across a yield --> $DIR/not-send-sync.rs:24:9 | diff --git a/tests/ui/coroutine/parent-expression.stderr b/tests/ui/coroutine/parent-expression.stderr index f14bf05ed09..0dd97c538a8 100644 --- a/tests/ui/coroutine/parent-expression.stderr +++ b/tests/ui/coroutine/parent-expression.stderr @@ -12,7 +12,11 @@ LL | | }; LL | | ); | |_____- in this macro invocation | - = help: within `{coroutine@$DIR/parent-expression.rs:19:34: 19:41}`, the trait `Send` is not implemented for `derived_drop::Client` +help: within `{coroutine@$DIR/parent-expression.rs:19:34: 19:41}`, the trait `Send` is not implemented for `derived_drop::Client` + --> $DIR/parent-expression.rs:51:46 + | +LL | derived_drop => { #[derive(Default)] pub struct Client { pub nickname: String } }; + | ^^^^^^^^^^^^^^^^^ note: coroutine is not `Send` as this value is used across a yield --> $DIR/parent-expression.rs:23:22 | @@ -50,7 +54,11 @@ LL | | }; LL | | ); | |_____- in this macro invocation | - = help: within `{coroutine@$DIR/parent-expression.rs:19:34: 19:41}`, the trait `Send` is not implemented for `significant_drop::Client` +help: within `{coroutine@$DIR/parent-expression.rs:19:34: 19:41}`, the trait `Send` is not implemented for `significant_drop::Client` + --> $DIR/parent-expression.rs:55:13 + | +LL | pub struct Client; + | ^^^^^^^^^^^^^^^^^ note: coroutine is not `Send` as this value is used across a yield --> $DIR/parent-expression.rs:23:22 | @@ -88,7 +96,11 @@ LL | | }; LL | | ); | |_____- in this macro invocation | - = help: within `{coroutine@$DIR/parent-expression.rs:19:34: 19:41}`, the trait `Send` is not implemented for `insignificant_dtor::Client` +help: within `{coroutine@$DIR/parent-expression.rs:19:34: 19:41}`, the trait `Send` is not implemented for `insignificant_dtor::Client` + --> $DIR/parent-expression.rs:64:13 + | +LL | pub struct Client; + | ^^^^^^^^^^^^^^^^^ note: coroutine is not `Send` as this value is used across a yield --> $DIR/parent-expression.rs:23:22 | diff --git a/tests/ui/coroutine/print/coroutine-print-verbose-2.stderr b/tests/ui/coroutine/print/coroutine-print-verbose-2.stderr index 11b78e3bcf8..d27660c67d9 100644 --- a/tests/ui/coroutine/print/coroutine-print-verbose-2.stderr +++ b/tests/ui/coroutine/print/coroutine-print-verbose-2.stderr @@ -9,7 +9,11 @@ LL | | drop(a); LL | | }); | |______^ coroutine is not `Sync` | - = help: within `{main::{closure#0} upvar_tys=() resume_ty=() yield_ty=() return_ty=()}`, the trait `Sync` is not implemented for `NotSync` +help: within `{main::{closure#0} upvar_tys=() resume_ty=() yield_ty=() return_ty=()}`, the trait `Sync` is not implemented for `NotSync` + --> $DIR/coroutine-print-verbose-2.rs:8:1 + | +LL | struct NotSync; + | ^^^^^^^^^^^^^^ note: coroutine is not `Sync` as this value is used across a yield --> $DIR/coroutine-print-verbose-2.rs:20:9 | @@ -34,7 +38,11 @@ LL | | drop(a); LL | | }); | |______^ coroutine is not `Send` | - = help: within `{main::{closure#1} upvar_tys=() resume_ty=() yield_ty=() return_ty=()}`, the trait `Send` is not implemented for `NotSend` +help: within `{main::{closure#1} upvar_tys=() resume_ty=() yield_ty=() return_ty=()}`, the trait `Send` is not implemented for `NotSend` + --> $DIR/coroutine-print-verbose-2.rs:7:1 + | +LL | struct NotSend; + | ^^^^^^^^^^^^^^ note: coroutine is not `Send` as this value is used across a yield --> $DIR/coroutine-print-verbose-2.rs:27:9 | diff --git a/tests/ui/coroutine/reborrow-mut-upvar.stderr b/tests/ui/coroutine/reborrow-mut-upvar.stderr index a05e84c5f3e..a77121a25dc 100644 --- a/tests/ui/coroutine/reborrow-mut-upvar.stderr +++ b/tests/ui/coroutine/reborrow-mut-upvar.stderr @@ -12,7 +12,7 @@ LL | | }; | |_____^ | = note: coroutines are lazy and do nothing unless resumed - = note: `#[warn(unused_must_use)]` on by default + = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coroutine/static-closure-unexpanded.rs b/tests/ui/coroutine/static-closure-unexpanded.rs new file mode 100644 index 00000000000..7cf24774ded --- /dev/null +++ b/tests/ui/coroutine/static-closure-unexpanded.rs @@ -0,0 +1,10 @@ +// Tests that static closures are not stable in the parser grammar unless the +// coroutine feature is enabled. + +#[cfg(any())] +fn foo() { + let _ = static || {}; + //~^ ERROR coroutine syntax is experimental +} + +fn main() {} diff --git a/tests/ui/coroutine/static-closure-unexpanded.stderr b/tests/ui/coroutine/static-closure-unexpanded.stderr new file mode 100644 index 00000000000..f08bafd368f --- /dev/null +++ b/tests/ui/coroutine/static-closure-unexpanded.stderr @@ -0,0 +1,13 @@ +error[E0658]: coroutine syntax is experimental + --> $DIR/static-closure-unexpanded.rs:6:13 + | +LL | let _ = static || {}; + | ^^^^^^ + | + = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information + = help: add `#![feature(coroutines)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/coroutine/too-live-local-in-immovable-gen.stderr b/tests/ui/coroutine/too-live-local-in-immovable-gen.stderr index 4fad4036300..0bc6cb60370 100644 --- a/tests/ui/coroutine/too-live-local-in-immovable-gen.stderr +++ b/tests/ui/coroutine/too-live-local-in-immovable-gen.stderr @@ -9,7 +9,7 @@ LL | | }; | |_________^ | = note: coroutines are lazy and do nothing unless resumed - = note: `#[warn(unused_must_use)]` on by default + = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coroutine/yield-in-args-rev.stderr b/tests/ui/coroutine/yield-in-args-rev.stderr index 10829d66185..d1650cee6cb 100644 --- a/tests/ui/coroutine/yield-in-args-rev.stderr +++ b/tests/ui/coroutine/yield-in-args-rev.stderr @@ -9,7 +9,7 @@ LL | | }; | |_____^ | = note: coroutines are lazy and do nothing unless resumed - = note: `#[warn(unused_must_use)]` on by default + = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coroutine/yield-in-initializer.stderr b/tests/ui/coroutine/yield-in-initializer.stderr index eff5a0fdccf..a01be9e8e73 100644 --- a/tests/ui/coroutine/yield-in-initializer.stderr +++ b/tests/ui/coroutine/yield-in-initializer.stderr @@ -9,7 +9,7 @@ LL | | }; | |_____^ | = note: coroutines are lazy and do nothing unless resumed - = note: `#[warn(unused_must_use)]` on by default + = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coroutine/yield-subtype.stderr b/tests/ui/coroutine/yield-subtype.stderr index 973415327a5..b2bf219822b 100644 --- a/tests/ui/coroutine/yield-subtype.stderr +++ b/tests/ui/coroutine/yield-subtype.stderr @@ -9,7 +9,7 @@ LL | | }; | |_____^ | = note: coroutines are lazy and do nothing unless resumed - = note: `#[warn(unused_must_use)]` on by default + = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/coverage-attr/allowed-positions.stderr b/tests/ui/coverage-attr/allowed-positions.stderr index aaef3ad0203..1690d089a8c 100644 --- a/tests/ui/coverage-attr/allowed-positions.stderr +++ b/tests/ui/coverage-attr/allowed-positions.stderr @@ -14,7 +14,7 @@ error: `#[coverage]` attribute cannot be used on type aliases LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error: `#[coverage]` attribute cannot be used on traits --> $DIR/allowed-positions.rs:17:1 @@ -22,7 +22,7 @@ error: `#[coverage]` attribute cannot be used on traits LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error: `#[coverage]` attribute cannot be used on associated consts --> $DIR/allowed-positions.rs:19:5 @@ -30,7 +30,7 @@ error: `#[coverage]` attribute cannot be used on associated consts LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error: `#[coverage]` attribute cannot be used on associated types --> $DIR/allowed-positions.rs:22:5 @@ -38,7 +38,7 @@ error: `#[coverage]` attribute cannot be used on associated types LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error: `#[coverage]` attribute cannot be used on required trait methods --> $DIR/allowed-positions.rs:25:5 @@ -46,7 +46,7 @@ error: `#[coverage]` attribute cannot be used on required trait methods LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to impl blocks, functions, closures, provided trait methods, trait methods in impl blocks, inherent methods, modules, crates + = help: `#[coverage]` can be applied to impl blocks, functions, closures, provided trait methods, trait methods in impl blocks, inherent methods, modules, and crates error: `#[coverage]` attribute cannot be used on required trait methods --> $DIR/allowed-positions.rs:31:5 @@ -54,7 +54,7 @@ error: `#[coverage]` attribute cannot be used on required trait methods LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to impl blocks, functions, closures, provided trait methods, trait methods in impl blocks, inherent methods, modules, crates + = help: `#[coverage]` can be applied to impl blocks, functions, closures, provided trait methods, trait methods in impl blocks, inherent methods, modules, and crates error: `#[coverage]` attribute cannot be used on associated types --> $DIR/allowed-positions.rs:39:5 @@ -62,7 +62,7 @@ error: `#[coverage]` attribute cannot be used on associated types LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error: `#[coverage]` attribute cannot be used on associated types --> $DIR/allowed-positions.rs:56:5 @@ -70,7 +70,7 @@ error: `#[coverage]` attribute cannot be used on associated types LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error: `#[coverage]` attribute cannot be used on structs --> $DIR/allowed-positions.rs:61:1 @@ -78,7 +78,7 @@ error: `#[coverage]` attribute cannot be used on structs LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error: `#[coverage]` attribute cannot be used on struct fields --> $DIR/allowed-positions.rs:63:5 @@ -86,7 +86,7 @@ error: `#[coverage]` attribute cannot be used on struct fields LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error: `#[coverage]` attribute cannot be used on foreign statics --> $DIR/allowed-positions.rs:76:5 @@ -94,7 +94,7 @@ error: `#[coverage]` attribute cannot be used on foreign statics LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error: `#[coverage]` attribute cannot be used on foreign types --> $DIR/allowed-positions.rs:79:5 @@ -102,7 +102,7 @@ error: `#[coverage]` attribute cannot be used on foreign types LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error: `#[coverage]` attribute cannot be used on foreign functions --> $DIR/allowed-positions.rs:82:5 @@ -110,7 +110,7 @@ error: `#[coverage]` attribute cannot be used on foreign functions LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to methods, impl blocks, functions, closures, modules, crates + = help: `#[coverage]` can be applied to methods, impl blocks, functions, closures, modules, and crates error: `#[coverage]` attribute cannot be used on statements --> $DIR/allowed-positions.rs:88:5 @@ -118,7 +118,7 @@ error: `#[coverage]` attribute cannot be used on statements LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error: `#[coverage]` attribute cannot be used on statements --> $DIR/allowed-positions.rs:94:5 @@ -126,7 +126,7 @@ error: `#[coverage]` attribute cannot be used on statements LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error: `#[coverage]` attribute cannot be used on match arms --> $DIR/allowed-positions.rs:110:9 @@ -134,7 +134,7 @@ error: `#[coverage]` attribute cannot be used on match arms LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error: `#[coverage]` attribute cannot be used on expressions --> $DIR/allowed-positions.rs:114:5 @@ -142,7 +142,7 @@ error: `#[coverage]` attribute cannot be used on expressions LL | #[coverage(off)] | ^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error: aborting due to 18 previous errors diff --git a/tests/ui/coverage-attr/bad-syntax.stderr b/tests/ui/coverage-attr/bad-syntax.stderr index 927f61da08d..ecf3ed83bca 100644 --- a/tests/ui/coverage-attr/bad-syntax.stderr +++ b/tests/ui/coverage-attr/bad-syntax.stderr @@ -1,15 +1,3 @@ -error: expected identifier, found `,` - --> $DIR/bad-syntax.rs:44:12 - | -LL | #[coverage(,off)] - | ^ expected identifier - | -help: remove this comma - | -LL - #[coverage(,off)] -LL + #[coverage(off)] - | - error: multiple `coverage` attributes --> $DIR/bad-syntax.rs:9:1 | @@ -162,6 +150,18 @@ LL - #[coverage(off, bogus)] LL + #[coverage(on)] | +error: expected identifier, found `,` + --> $DIR/bad-syntax.rs:44:12 + | +LL | #[coverage(,off)] + | ^ expected identifier + | +help: remove this comma + | +LL - #[coverage(,off)] +LL + #[coverage(off)] + | + error: aborting due to 11 previous errors Some errors have detailed explanations: E0539, E0805. diff --git a/tests/ui/coverage-attr/name-value.stderr b/tests/ui/coverage-attr/name-value.stderr index d1527ec810c..77abaa42e31 100644 --- a/tests/ui/coverage-attr/name-value.stderr +++ b/tests/ui/coverage-attr/name-value.stderr @@ -49,7 +49,7 @@ error: `#[coverage]` attribute cannot be used on structs LL | #[coverage = "off"] | ^^^^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error[E0539]: malformed `coverage` attribute input --> $DIR/name-value.rs:26:1 @@ -87,7 +87,7 @@ error: `#[coverage]` attribute cannot be used on associated consts LL | #[coverage = "off"] | ^^^^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error[E0539]: malformed `coverage` attribute input --> $DIR/name-value.rs:35:1 @@ -110,7 +110,7 @@ error: `#[coverage]` attribute cannot be used on traits LL | #[coverage = "off"] | ^^^^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error[E0539]: malformed `coverage` attribute input --> $DIR/name-value.rs:39:5 @@ -133,7 +133,7 @@ error: `#[coverage]` attribute cannot be used on associated consts LL | #[coverage = "off"] | ^^^^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error[E0539]: malformed `coverage` attribute input --> $DIR/name-value.rs:44:5 @@ -156,7 +156,7 @@ error: `#[coverage]` attribute cannot be used on associated types LL | #[coverage = "off"] | ^^^^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error[E0539]: malformed `coverage` attribute input --> $DIR/name-value.rs:50:1 @@ -194,7 +194,7 @@ error: `#[coverage]` attribute cannot be used on associated consts LL | #[coverage = "off"] | ^^^^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error[E0539]: malformed `coverage` attribute input --> $DIR/name-value.rs:58:5 @@ -217,7 +217,7 @@ error: `#[coverage]` attribute cannot be used on associated types LL | #[coverage = "off"] | ^^^^^^^^^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error[E0539]: malformed `coverage` attribute input --> $DIR/name-value.rs:64:1 diff --git a/tests/ui/coverage-attr/word-only.stderr b/tests/ui/coverage-attr/word-only.stderr index 880ad080953..5fcffacc7fa 100644 --- a/tests/ui/coverage-attr/word-only.stderr +++ b/tests/ui/coverage-attr/word-only.stderr @@ -43,7 +43,7 @@ error: `#[coverage]` attribute cannot be used on structs LL | #[coverage] | ^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error[E0539]: malformed `coverage` attribute input --> $DIR/word-only.rs:26:1 @@ -77,7 +77,7 @@ error: `#[coverage]` attribute cannot be used on associated consts LL | #[coverage] | ^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error[E0539]: malformed `coverage` attribute input --> $DIR/word-only.rs:35:1 @@ -98,7 +98,7 @@ error: `#[coverage]` attribute cannot be used on traits LL | #[coverage] | ^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error[E0539]: malformed `coverage` attribute input --> $DIR/word-only.rs:39:5 @@ -119,7 +119,7 @@ error: `#[coverage]` attribute cannot be used on associated consts LL | #[coverage] | ^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error[E0539]: malformed `coverage` attribute input --> $DIR/word-only.rs:44:5 @@ -140,7 +140,7 @@ error: `#[coverage]` attribute cannot be used on associated types LL | #[coverage] | ^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error[E0539]: malformed `coverage` attribute input --> $DIR/word-only.rs:50:1 @@ -174,7 +174,7 @@ error: `#[coverage]` attribute cannot be used on associated consts LL | #[coverage] | ^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error[E0539]: malformed `coverage` attribute input --> $DIR/word-only.rs:58:5 @@ -195,7 +195,7 @@ error: `#[coverage]` attribute cannot be used on associated types LL | #[coverage] | ^^^^^^^^^^^ | - = help: `#[coverage]` can be applied to functions, impl blocks, modules, crates + = help: `#[coverage]` can be applied to functions, impl blocks, modules, and crates error[E0539]: malformed `coverage` attribute input --> $DIR/word-only.rs:64:1 diff --git a/tests/ui/issues/auxiliary/issue-7899.rs b/tests/ui/cross-crate/auxiliary/aux-7899.rs index 3af6e871661..3af6e871661 100644 --- a/tests/ui/issues/auxiliary/issue-7899.rs +++ b/tests/ui/cross-crate/auxiliary/aux-7899.rs diff --git a/tests/ui/issues/auxiliary/issue-8259.rs b/tests/ui/cross-crate/auxiliary/aux-8259.rs index 891aee099dc..891aee099dc 100644 --- a/tests/ui/issues/auxiliary/issue-8259.rs +++ b/tests/ui/cross-crate/auxiliary/aux-8259.rs diff --git a/tests/ui/issues/issue-8259.rs b/tests/ui/cross-crate/static-regions-in-cross-crate-8259.rs index e843f7f9c50..347cfa2aee1 100644 --- a/tests/ui/issues/issue-8259.rs +++ b/tests/ui/cross-crate/static-regions-in-cross-crate-8259.rs @@ -1,11 +1,11 @@ +// https://github.com/rust-lang/rust/issues/8259 //@ run-pass #![allow(dead_code)] #![allow(non_upper_case_globals)] -//@ aux-build:issue-8259.rs +//@ aux-build:aux-8259.rs - -extern crate issue_8259 as other; +extern crate aux_8259 as other; static a: other::Foo<'static> = other::Foo::A; pub fn main() {} diff --git a/tests/ui/cross-crate/tuple-like-structs-cross-crate-7899.rs b/tests/ui/cross-crate/tuple-like-structs-cross-crate-7899.rs new file mode 100644 index 00000000000..ce3ea7dd579 --- /dev/null +++ b/tests/ui/cross-crate/tuple-like-structs-cross-crate-7899.rs @@ -0,0 +1,10 @@ +// https://github.com/rust-lang/rust/issues/7899 +//@ run-pass +#![allow(unused_variables)] +//@ aux-build:aux-7899.rs + +extern crate aux_7899 as testcrate; + +fn main() { + let f = testcrate::V2(1.0f32, 2.0f32); +} diff --git a/tests/ui/delegation/explicit-paths.stderr b/tests/ui/delegation/explicit-paths.stderr index 8098ea8c54f..29f87cf1457 100644 --- a/tests/ui/delegation/explicit-paths.stderr +++ b/tests/ui/delegation/explicit-paths.stderr @@ -89,8 +89,13 @@ error[E0277]: the trait bound `S2: Trait` is not satisfied --> $DIR/explicit-paths.rs:76:16 | LL | reuse <S2 as Trait>::foo1; - | ^^ the trait `Trait` is not implemented for `S2` + | ^^ unsatisfied trait bound | +help: the trait `Trait` is not implemented for `S2` + --> $DIR/explicit-paths.rs:73:5 + | +LL | struct S2; + | ^^^^^^^^^ = help: the following other types implement trait `Trait`: F S diff --git a/tests/ui/delegation/generics/impl-to-trait-method.stderr b/tests/ui/delegation/generics/impl-to-trait-method.stderr index aeba30de043..2c0b466dba3 100644 --- a/tests/ui/delegation/generics/impl-to-trait-method.stderr +++ b/tests/ui/delegation/generics/impl-to-trait-method.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `bounds::S: Trait0` is not satisfied --> $DIR/impl-to-trait-method.rs:12:19 | LL | Self: Trait0, - | ^^^^^^ the trait `Trait0` is not implemented for `bounds::S` + | ^^^^^^ unsatisfied trait bound | +help: the trait `Trait0` is not implemented for `bounds::S` + --> $DIR/impl-to-trait-method.rs:21:5 + | +LL | struct S(F); + | ^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/impl-to-trait-method.rs:5:5 | @@ -19,10 +24,15 @@ error[E0277]: the trait bound `bounds::F: Trait0` is not satisfied --> $DIR/impl-to-trait-method.rs:24:34 | LL | reuse Trait1::<T>::foo { &self.0 } - | --- ^^^^^^^ the trait `Trait0` is not implemented for `bounds::F` + | --- ^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Trait0` is not implemented for `bounds::F` + --> $DIR/impl-to-trait-method.rs:18:5 + | +LL | struct F; + | ^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/impl-to-trait-method.rs:5:5 | diff --git a/tests/ui/delegation/ice-issue-122550.stderr b/tests/ui/delegation/ice-issue-122550.stderr index 1a01bee3e1e..01355c8ad92 100644 --- a/tests/ui/delegation/ice-issue-122550.stderr +++ b/tests/ui/delegation/ice-issue-122550.stderr @@ -8,8 +8,13 @@ error[E0277]: the trait bound `S: Trait` is not satisfied --> $DIR/ice-issue-122550.rs:13:12 | LL | reuse <S as Trait>::description { &self.0 } - | ^ the trait `Trait` is not implemented for `S` + | ^ unsatisfied trait bound | +help: the trait `Trait` is not implemented for `S` + --> $DIR/ice-issue-122550.rs:10:1 + | +LL | struct S(F); + | ^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/ice-issue-122550.rs:4:1 | diff --git a/tests/ui/delegation/target-expr-pass.stderr b/tests/ui/delegation/target-expr-pass.stderr index c8d73ec6e5a..4924d95208a 100644 --- a/tests/ui/delegation/target-expr-pass.stderr +++ b/tests/ui/delegation/target-expr-pass.stderr @@ -4,7 +4,7 @@ warning: trait `Trait` is never used LL | trait Trait { | ^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: struct `F` is never constructed --> $DIR/target-expr-pass.rs:21:8 diff --git a/tests/ui/deprecation/deprecation-sanity.stderr b/tests/ui/deprecation/deprecation-sanity.stderr index 57af76d8f24..ea021b71e14 100644 --- a/tests/ui/deprecation/deprecation-sanity.stderr +++ b/tests/ui/deprecation/deprecation-sanity.stderr @@ -177,7 +177,7 @@ LL | #[deprecated = "hello"] | ^^^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[deprecated]` can be applied to functions, data types, modules, unions, constants, statics, macro defs, type aliases, use statements, foreign statics, struct fields, traits, associated types, associated consts, enum variants, inherent impl blocks, crates + = help: `#[deprecated]` can be applied to functions, data types, modules, unions, constants, statics, macro defs, type aliases, use statements, foreign statics, struct fields, traits, associated types, associated consts, enum variants, inherent impl blocks, and crates = note: `#[deny(useless_deprecated)]` on by default error: aborting due to 10 previous errors diff --git a/tests/ui/deprecation/issue-66340-deprecated-attr-non-meta-grammar.rs b/tests/ui/deprecation/issue-66340-deprecated-attr-non-meta-grammar.rs index c5433151a8f..378d0a3e723 100644 --- a/tests/ui/deprecation/issue-66340-deprecated-attr-non-meta-grammar.rs +++ b/tests/ui/deprecation/issue-66340-deprecated-attr-non-meta-grammar.rs @@ -3,9 +3,9 @@ // was a well-formed `MetaItem`. fn main() { - foo() //~ WARNING use of deprecated function `foo` + foo() } #[deprecated(note = test)] -//~^ ERROR expected unsuffixed literal, found `test` +//~^ ERROR expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `test` fn foo() {} diff --git a/tests/ui/deprecation/issue-66340-deprecated-attr-non-meta-grammar.stderr b/tests/ui/deprecation/issue-66340-deprecated-attr-non-meta-grammar.stderr index 2ff8534b276..cd985ab5a18 100644 --- a/tests/ui/deprecation/issue-66340-deprecated-attr-non-meta-grammar.stderr +++ b/tests/ui/deprecation/issue-66340-deprecated-attr-non-meta-grammar.stderr @@ -1,4 +1,4 @@ -error: expected unsuffixed literal, found `test` +error: expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `test` --> $DIR/issue-66340-deprecated-attr-non-meta-grammar.rs:9:21 | LL | #[deprecated(note = test)] @@ -9,13 +9,5 @@ help: surround the identifier with quotation marks to make it into a string lite LL | #[deprecated(note = "test")] | + + -warning: use of deprecated function `foo` - --> $DIR/issue-66340-deprecated-attr-non-meta-grammar.rs:6:5 - | -LL | foo() - | ^^^ - | - = note: `#[warn(deprecated)]` on by default - -error: aborting due to 1 previous error; 1 warning emitted +error: aborting due to 1 previous error diff --git a/tests/ui/deriving/deriving-from-wrong-target.rs b/tests/ui/deriving/deriving-from-wrong-target.rs index 37c9300e28b..d0cab937b5d 100644 --- a/tests/ui/deriving/deriving-from-wrong-target.rs +++ b/tests/ui/deriving/deriving-from-wrong-target.rs @@ -29,8 +29,6 @@ struct S4 { enum E1 {} #[derive(From)] -//~^ ERROR the size for values of type `T` cannot be known at compilation time [E0277] -//~| ERROR the size for values of type `T` cannot be known at compilation time [E0277] struct SUnsizedField<T: ?Sized> { last: T, //~^ ERROR the size for values of type `T` cannot be known at compilation time [E0277] diff --git a/tests/ui/deriving/deriving-from-wrong-target.stderr b/tests/ui/deriving/deriving-from-wrong-target.stderr index 63eb8ec7b6e..4547cea5ba6 100644 --- a/tests/ui/deriving/deriving-from-wrong-target.stderr +++ b/tests/ui/deriving/deriving-from-wrong-target.stderr @@ -54,45 +54,7 @@ LL | enum E1 {} = note: `#[derive(From)]` can only be used on structs with exactly one field error[E0277]: the size for values of type `T` cannot be known at compilation time - --> $DIR/deriving-from-wrong-target.rs:31:10 - | -LL | #[derive(From)] - | ^^^^ doesn't have a size known at compile-time -... -LL | struct SUnsizedField<T: ?Sized> { - | - this type parameter needs to be `Sized` - | -note: required by an implicit `Sized` bound in `From` - --> $SRC_DIR/core/src/convert/mod.rs:LL:COL -help: consider removing the `?Sized` bound to make the type parameter `Sized` - | -LL - struct SUnsizedField<T: ?Sized> { -LL + struct SUnsizedField<T> { - | - -error[E0277]: the size for values of type `T` cannot be known at compilation time - --> $DIR/deriving-from-wrong-target.rs:31:10 - | -LL | #[derive(From)] - | ^^^^ doesn't have a size known at compile-time -... -LL | struct SUnsizedField<T: ?Sized> { - | - this type parameter needs to be `Sized` - | -note: required because it appears within the type `SUnsizedField<T>` - --> $DIR/deriving-from-wrong-target.rs:34:8 - | -LL | struct SUnsizedField<T: ?Sized> { - | ^^^^^^^^^^^^^ - = note: the return type of a function must have a statically known size -help: consider removing the `?Sized` bound to make the type parameter `Sized` - | -LL - struct SUnsizedField<T: ?Sized> { -LL + struct SUnsizedField<T> { - | - -error[E0277]: the size for values of type `T` cannot be known at compilation time - --> $DIR/deriving-from-wrong-target.rs:35:11 + --> $DIR/deriving-from-wrong-target.rs:33:11 | LL | struct SUnsizedField<T: ?Sized> { | - this type parameter needs to be `Sized` @@ -110,6 +72,6 @@ help: function arguments must have a statically known size, borrowed types alway LL | last: &T, | + -error: aborting due to 8 previous errors +error: aborting due to 6 previous errors For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/diagnostic_namespace/do_not_recommend/does_not_acccept_args.current.stderr b/tests/ui/diagnostic_namespace/do_not_recommend/does_not_acccept_args.current.stderr index 9d1556ee0c1..2af24130a1e 100644 --- a/tests/ui/diagnostic_namespace/do_not_recommend/does_not_acccept_args.current.stderr +++ b/tests/ui/diagnostic_namespace/do_not_recommend/does_not_acccept_args.current.stderr @@ -4,7 +4,7 @@ warning: `#[diagnostic::do_not_recommend]` does not expect any arguments LL | #[diagnostic::do_not_recommend(not_accepted)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = note: `#[warn(malformed_diagnostic_attributes)]` on by default + = note: `#[warn(malformed_diagnostic_attributes)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default warning: `#[diagnostic::do_not_recommend]` does not expect any arguments --> $DIR/does_not_acccept_args.rs:15:1 diff --git a/tests/ui/diagnostic_namespace/do_not_recommend/does_not_acccept_args.next.stderr b/tests/ui/diagnostic_namespace/do_not_recommend/does_not_acccept_args.next.stderr index 9d1556ee0c1..2af24130a1e 100644 --- a/tests/ui/diagnostic_namespace/do_not_recommend/does_not_acccept_args.next.stderr +++ b/tests/ui/diagnostic_namespace/do_not_recommend/does_not_acccept_args.next.stderr @@ -4,7 +4,7 @@ warning: `#[diagnostic::do_not_recommend]` does not expect any arguments LL | #[diagnostic::do_not_recommend(not_accepted)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = note: `#[warn(malformed_diagnostic_attributes)]` on by default + = note: `#[warn(malformed_diagnostic_attributes)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default warning: `#[diagnostic::do_not_recommend]` does not expect any arguments --> $DIR/does_not_acccept_args.rs:15:1 diff --git a/tests/ui/diagnostic_namespace/do_not_recommend/incorrect-locations.current.stderr b/tests/ui/diagnostic_namespace/do_not_recommend/incorrect-locations.current.stderr index 29ffbb5bf18..d2ad65b3c79 100644 --- a/tests/ui/diagnostic_namespace/do_not_recommend/incorrect-locations.current.stderr +++ b/tests/ui/diagnostic_namespace/do_not_recommend/incorrect-locations.current.stderr @@ -4,7 +4,7 @@ warning: `#[diagnostic::do_not_recommend]` can only be placed on trait implement LL | #[diagnostic::do_not_recommend] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = note: `#[warn(misplaced_diagnostic_attributes)]` on by default + = note: `#[warn(misplaced_diagnostic_attributes)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default warning: `#[diagnostic::do_not_recommend]` can only be placed on trait implementations --> $DIR/incorrect-locations.rs:11:1 diff --git a/tests/ui/diagnostic_namespace/do_not_recommend/incorrect-locations.next.stderr b/tests/ui/diagnostic_namespace/do_not_recommend/incorrect-locations.next.stderr index 29ffbb5bf18..d2ad65b3c79 100644 --- a/tests/ui/diagnostic_namespace/do_not_recommend/incorrect-locations.next.stderr +++ b/tests/ui/diagnostic_namespace/do_not_recommend/incorrect-locations.next.stderr @@ -4,7 +4,7 @@ warning: `#[diagnostic::do_not_recommend]` can only be placed on trait implement LL | #[diagnostic::do_not_recommend] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = note: `#[warn(misplaced_diagnostic_attributes)]` on by default + = note: `#[warn(misplaced_diagnostic_attributes)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default warning: `#[diagnostic::do_not_recommend]` can only be placed on trait implementations --> $DIR/incorrect-locations.rs:11:1 diff --git a/tests/ui/diagnostic_namespace/non_existing_attributes_accepted.stderr b/tests/ui/diagnostic_namespace/non_existing_attributes_accepted.stderr index 4f9b7ba2bcf..acaa1ac0c56 100644 --- a/tests/ui/diagnostic_namespace/non_existing_attributes_accepted.stderr +++ b/tests/ui/diagnostic_namespace/non_existing_attributes_accepted.stderr @@ -4,7 +4,7 @@ warning: unknown diagnostic attribute LL | #[diagnostic::non_existing_attribute] | ^^^^^^^^^^^^^^^^^^^^^^ | - = note: `#[warn(unknown_diagnostic_attributes)]` on by default + = note: `#[warn(unknown_diagnostic_attributes)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default warning: unknown diagnostic attribute --> $DIR/non_existing_attributes_accepted.rs:8:15 diff --git a/tests/ui/diagnostic_namespace/on_unimplemented/broken_format.stderr b/tests/ui/diagnostic_namespace/on_unimplemented/broken_format.stderr index 5002122f8b7..2138d591ca2 100644 --- a/tests/ui/diagnostic_namespace/on_unimplemented/broken_format.stderr +++ b/tests/ui/diagnostic_namespace/on_unimplemented/broken_format.stderr @@ -4,7 +4,7 @@ warning: unmatched `}` found LL | #[diagnostic::on_unimplemented(message = "{{Test } thing")] | ^^^^^^^^^^^^^^^^ | - = note: `#[warn(malformed_diagnostic_format_literals)]` on by default + = note: `#[warn(malformed_diagnostic_format_literals)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default warning: positional format arguments are not allowed here --> $DIR/broken_format.rs:7:49 diff --git a/tests/ui/diagnostic_namespace/on_unimplemented/do_not_accept_options_of_the_internal_rustc_attribute.stderr b/tests/ui/diagnostic_namespace/on_unimplemented/do_not_accept_options_of_the_internal_rustc_attribute.stderr index 42f4bc0d8b0..6493a8cf2e1 100644 --- a/tests/ui/diagnostic_namespace/on_unimplemented/do_not_accept_options_of_the_internal_rustc_attribute.stderr +++ b/tests/ui/diagnostic_namespace/on_unimplemented/do_not_accept_options_of_the_internal_rustc_attribute.stderr @@ -4,7 +4,7 @@ warning: `#[diagnostic::on_unimplemented]` can only be applied to trait definiti LL | #[diagnostic::on_unimplemented(message = "Not allowed to apply it on a impl")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = note: `#[warn(misplaced_diagnostic_attributes)]` on by default + = note: `#[warn(misplaced_diagnostic_attributes)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default warning: malformed `on_unimplemented` attribute --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:6:5 @@ -13,7 +13,7 @@ LL | on(Self = "&str"), | ^^^^^^^^^^^^^^^^^ invalid option found here | = help: only `message`, `note` and `label` are allowed as options - = note: `#[warn(malformed_diagnostic_attributes)]` on by default + = note: `#[warn(malformed_diagnostic_attributes)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default warning: malformed `on_unimplemented` attribute --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:12:5 @@ -46,7 +46,7 @@ LL | message = "{from_desugaring}{direct}{cause}{integral}{integer}", | ^^^^^^^^^^^^^^^ | = help: expect either a generic argument name or `{Self}` as format argument - = note: `#[warn(malformed_diagnostic_format_literals)]` on by default + = note: `#[warn(malformed_diagnostic_format_literals)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default warning: there is no parameter `direct` on trait `Baz` --> $DIR/do_not_accept_options_of_the_internal_rustc_attribute.rs:33:34 diff --git a/tests/ui/diagnostic_namespace/on_unimplemented/do_not_fail_parsing_on_invalid_options_1.stderr b/tests/ui/diagnostic_namespace/on_unimplemented/do_not_fail_parsing_on_invalid_options_1.stderr index 85d74fb8955..df5d0d6dccb 100644 --- a/tests/ui/diagnostic_namespace/on_unimplemented/do_not_fail_parsing_on_invalid_options_1.stderr +++ b/tests/ui/diagnostic_namespace/on_unimplemented/do_not_fail_parsing_on_invalid_options_1.stderr @@ -4,7 +4,7 @@ warning: `#[diagnostic::on_unimplemented]` can only be applied to trait definiti LL | #[diagnostic::on_unimplemented(message = "Baz")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = note: `#[warn(misplaced_diagnostic_attributes)]` on by default + = note: `#[warn(misplaced_diagnostic_attributes)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default warning: malformed `on_unimplemented` attribute --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:3:32 @@ -13,7 +13,7 @@ LL | #[diagnostic::on_unimplemented(unsupported = "foo")] | ^^^^^^^^^^^^^^^^^^^ invalid option found here | = help: only `message`, `note` and `label` are allowed as options - = note: `#[warn(malformed_diagnostic_attributes)]` on by default + = note: `#[warn(malformed_diagnostic_attributes)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default warning: malformed `on_unimplemented` attribute --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:12:50 @@ -62,7 +62,7 @@ LL | #[diagnostic::on_unimplemented(message = "{DoesNotExist}")] | ^^^^^^^^^^^^ | = help: expect either a generic argument name or `{Self}` as format argument - = note: `#[warn(malformed_diagnostic_format_literals)]` on by default + = note: `#[warn(malformed_diagnostic_format_literals)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default warning: malformed `on_unimplemented` attribute --> $DIR/do_not_fail_parsing_on_invalid_options_1.rs:3:32 diff --git a/tests/ui/diagnostic_namespace/on_unimplemented/ignore_unsupported_options_and_continue_to_use_fallback.stderr b/tests/ui/diagnostic_namespace/on_unimplemented/ignore_unsupported_options_and_continue_to_use_fallback.stderr index 86fe75a62de..24b3a9c3405 100644 --- a/tests/ui/diagnostic_namespace/on_unimplemented/ignore_unsupported_options_and_continue_to_use_fallback.stderr +++ b/tests/ui/diagnostic_namespace/on_unimplemented/ignore_unsupported_options_and_continue_to_use_fallback.stderr @@ -5,7 +5,7 @@ LL | if(Self = "()"), | ^^^^^^^^^^^^^^^ invalid option found here | = help: only `message`, `note` and `label` are allowed as options - = note: `#[warn(malformed_diagnostic_attributes)]` on by default + = note: `#[warn(malformed_diagnostic_attributes)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default warning: `message` is ignored due to previous definition of `message` --> $DIR/ignore_unsupported_options_and_continue_to_use_fallback.rs:10:32 diff --git a/tests/ui/diagnostic_namespace/on_unimplemented/on_impl_trait.stderr b/tests/ui/diagnostic_namespace/on_unimplemented/on_impl_trait.stderr index 69433f91543..e9d0c6e5daf 100644 --- a/tests/ui/diagnostic_namespace/on_unimplemented/on_impl_trait.stderr +++ b/tests/ui/diagnostic_namespace/on_unimplemented/on_impl_trait.stderr @@ -4,7 +4,7 @@ warning: `#[diagnostic::on_unimplemented]` can only be applied to trait definiti LL | #[diagnostic::on_unimplemented(message = "blah", label = "blah", note = "blah")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = note: `#[warn(misplaced_diagnostic_attributes)]` on by default + = note: `#[warn(misplaced_diagnostic_attributes)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default error[E0277]: the trait bound `{integer}: Alias` is not satisfied --> $DIR/on_impl_trait.rs:16:9 diff --git a/tests/ui/diagnostic_namespace/on_unimplemented/report_warning_on_duplicated_options.stderr b/tests/ui/diagnostic_namespace/on_unimplemented/report_warning_on_duplicated_options.stderr index d2e121b61a6..de43656ff08 100644 --- a/tests/ui/diagnostic_namespace/on_unimplemented/report_warning_on_duplicated_options.stderr +++ b/tests/ui/diagnostic_namespace/on_unimplemented/report_warning_on_duplicated_options.stderr @@ -7,7 +7,7 @@ LL | message = "first message", LL | message = "second message", | ^^^^^^^^^^^^^^^^^^^^^^^^^^ `message` is already declared here | - = note: `#[warn(malformed_diagnostic_attributes)]` on by default + = note: `#[warn(malformed_diagnostic_attributes)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default warning: `label` is ignored due to previous definition of `label` --> $DIR/report_warning_on_duplicated_options.rs:11:5 diff --git a/tests/ui/did_you_mean/bad-assoc-ty.edition2015.stderr b/tests/ui/did_you_mean/bad-assoc-ty.edition2015.stderr index 416ff358d53..af0a9d064d5 100644 --- a/tests/ui/did_you_mean/bad-assoc-ty.edition2015.stderr +++ b/tests/ui/did_you_mean/bad-assoc-ty.edition2015.stderr @@ -187,7 +187,7 @@ LL | type H = Fn(u8) -> (u8)::Output; | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | type H = <dyn Fn(u8) -> (u8)>::Output; diff --git a/tests/ui/did_you_mean/issue-21659-show-relevant-trait-impls-1.stderr b/tests/ui/did_you_mean/issue-21659-show-relevant-trait-impls-1.stderr index 9d335b391eb..b754bafb344 100644 --- a/tests/ui/did_you_mean/issue-21659-show-relevant-trait-impls-1.stderr +++ b/tests/ui/did_you_mean/issue-21659-show-relevant-trait-impls-1.stderr @@ -2,10 +2,15 @@ error[E0277]: the trait bound `Bar: Foo<usize>` is not satisfied --> $DIR/issue-21659-show-relevant-trait-impls-1.rs:24:12 | LL | f1.foo(1usize); - | --- ^^^^^^ the trait `Foo<usize>` is not implemented for `Bar` + | --- ^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Foo<usize>` is not implemented for `Bar` + --> $DIR/issue-21659-show-relevant-trait-impls-1.rs:13:1 + | +LL | struct Bar; + | ^^^^^^^^^^ = help: the following other types implement trait `Foo<A>`: `Bar` implements `Foo<i32>` `Bar` implements `Foo<u8>` diff --git a/tests/ui/did_you_mean/issue-21659-show-relevant-trait-impls-2.stderr b/tests/ui/did_you_mean/issue-21659-show-relevant-trait-impls-2.stderr index f9d71807960..8d1c05e7b54 100644 --- a/tests/ui/did_you_mean/issue-21659-show-relevant-trait-impls-2.stderr +++ b/tests/ui/did_you_mean/issue-21659-show-relevant-trait-impls-2.stderr @@ -2,10 +2,15 @@ error[E0277]: the trait bound `Bar: Foo<usize>` is not satisfied --> $DIR/issue-21659-show-relevant-trait-impls-2.rs:28:12 | LL | f1.foo(1usize); - | --- ^^^^^^ the trait `Foo<usize>` is not implemented for `Bar` + | --- ^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Foo<usize>` is not implemented for `Bar` + --> $DIR/issue-21659-show-relevant-trait-impls-2.rs:13:1 + | +LL | struct Bar; + | ^^^^^^^^^^ = help: the following other types implement trait `Foo<A>`: `Bar` implements `Foo<i16>` `Bar` implements `Foo<i32>` diff --git a/tests/ui/drop/drop-struct-as-object.stderr b/tests/ui/drop/drop-struct-as-object.stderr index 16f6d1110ba..bde4e6074f3 100644 --- a/tests/ui/drop/drop-struct-as-object.stderr +++ b/tests/ui/drop/drop-struct-as-object.stderr @@ -6,7 +6,7 @@ LL | trait Dummy { LL | fn get(&self) -> usize; | ^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/drop/dropck-normalize-errors.nll.stderr b/tests/ui/drop/dropck-normalize-errors.nll.stderr index b008daa51a3..39ec4033eab 100644 --- a/tests/ui/drop/dropck-normalize-errors.nll.stderr +++ b/tests/ui/drop/dropck-normalize-errors.nll.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `NonImplementedStruct: NonImplementedTrait` is not --> $DIR/dropck-normalize-errors.rs:19:28 | LL | fn make_a_decoder<'a>() -> ADecoder<'a> { - | ^^^^^^^^^^^^ within `ADecoder<'a>`, the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct` + | ^^^^^^^^^^^^ unsatisfied trait bound | +help: within `ADecoder<'a>`, the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct` + --> $DIR/dropck-normalize-errors.rs:14:1 + | +LL | struct NonImplementedStruct; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/dropck-normalize-errors.rs:11:1 | @@ -25,8 +30,13 @@ error[E0277]: the trait bound `NonImplementedStruct: NonImplementedTrait` is not --> $DIR/dropck-normalize-errors.rs:27:20 | LL | type Decoder = BDecoder; - | ^^^^^^^^ within `BDecoder`, the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct` + | ^^^^^^^^ unsatisfied trait bound + | +help: within `BDecoder`, the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct` + --> $DIR/dropck-normalize-errors.rs:14:1 | +LL | struct NonImplementedStruct; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/dropck-normalize-errors.rs:11:1 | @@ -51,8 +61,13 @@ error[E0277]: the trait bound `NonImplementedStruct: NonImplementedTrait` is not --> $DIR/dropck-normalize-errors.rs:31:22 | LL | non_implemented: <NonImplementedStruct as NonImplementedTrait>::Assoc, - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | +help: the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct` + --> $DIR/dropck-normalize-errors.rs:14:1 + | +LL | struct NonImplementedStruct; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/dropck-normalize-errors.rs:11:1 | @@ -63,8 +78,13 @@ error[E0277]: the trait bound `NonImplementedStruct: NonImplementedTrait` is not --> $DIR/dropck-normalize-errors.rs:19:28 | LL | fn make_a_decoder<'a>() -> ADecoder<'a> { - | ^^^^^^^^^^^^ the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct` + | ^^^^^^^^^^^^ unsatisfied trait bound + | +help: the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct` + --> $DIR/dropck-normalize-errors.rs:14:1 | +LL | struct NonImplementedStruct; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/dropck-normalize-errors.rs:11:1 | diff --git a/tests/ui/drop/dropck-normalize-errors.polonius.stderr b/tests/ui/drop/dropck-normalize-errors.polonius.stderr index f8674b8e34a..3d72801b343 100644 --- a/tests/ui/drop/dropck-normalize-errors.polonius.stderr +++ b/tests/ui/drop/dropck-normalize-errors.polonius.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `NonImplementedStruct: NonImplementedTrait` is not --> $DIR/dropck-normalize-errors.rs:19:28 | LL | fn make_a_decoder<'a>() -> ADecoder<'a> { - | ^^^^^^^^^^^^ within `ADecoder<'a>`, the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct` + | ^^^^^^^^^^^^ unsatisfied trait bound | +help: within `ADecoder<'a>`, the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct` + --> $DIR/dropck-normalize-errors.rs:14:1 + | +LL | struct NonImplementedStruct; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/dropck-normalize-errors.rs:11:1 | @@ -25,8 +30,13 @@ error[E0277]: the trait bound `NonImplementedStruct: NonImplementedTrait` is not --> $DIR/dropck-normalize-errors.rs:27:20 | LL | type Decoder = BDecoder; - | ^^^^^^^^ within `BDecoder`, the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct` + | ^^^^^^^^ unsatisfied trait bound + | +help: within `BDecoder`, the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct` + --> $DIR/dropck-normalize-errors.rs:14:1 | +LL | struct NonImplementedStruct; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/dropck-normalize-errors.rs:11:1 | @@ -51,8 +61,13 @@ error[E0277]: the trait bound `NonImplementedStruct: NonImplementedTrait` is not --> $DIR/dropck-normalize-errors.rs:31:22 | LL | non_implemented: <NonImplementedStruct as NonImplementedTrait>::Assoc, - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound + | +help: the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct` + --> $DIR/dropck-normalize-errors.rs:14:1 | +LL | struct NonImplementedStruct; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/dropck-normalize-errors.rs:11:1 | diff --git a/tests/ui/drop/generic-drop-trait-bound-15858.stderr b/tests/ui/drop/generic-drop-trait-bound-15858.stderr index 86cd6cb6026..92bcdc1eda8 100644 --- a/tests/ui/drop/generic-drop-trait-bound-15858.stderr +++ b/tests/ui/drop/generic-drop-trait-bound-15858.stderr @@ -6,7 +6,7 @@ LL | trait Bar { LL | fn do_something(&mut self); | ^^^^^^^^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/dst/dst-bad-coerce1.stderr b/tests/ui/dst/dst-bad-coerce1.stderr index 68456b8642c..223bf9ce08a 100644 --- a/tests/ui/dst/dst-bad-coerce1.stderr +++ b/tests/ui/dst/dst-bad-coerce1.stderr @@ -13,8 +13,13 @@ error[E0277]: the trait bound `Foo: Bar` is not satisfied --> $DIR/dst-bad-coerce1.rs:20:29 | LL | let f3: &Fat<dyn Bar> = f2; - | ^^ the trait `Bar` is not implemented for `Foo` + | ^^ unsatisfied trait bound | +help: the trait `Bar` is not implemented for `Foo` + --> $DIR/dst-bad-coerce1.rs:7:1 + | +LL | struct Foo; + | ^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/dst-bad-coerce1.rs:8:1 | diff --git a/tests/ui/dyn-compatibility/avoid-ice-on-warning-2.old.stderr b/tests/ui/dyn-compatibility/avoid-ice-on-warning-2.old.stderr index 687799c6688..265bfb01de1 100644 --- a/tests/ui/dyn-compatibility/avoid-ice-on-warning-2.old.stderr +++ b/tests/ui/dyn-compatibility/avoid-ice-on-warning-2.old.stderr @@ -6,7 +6,7 @@ LL | fn id<F>(f: Copy) -> usize { | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | fn id<F>(f: dyn Copy) -> usize { diff --git a/tests/ui/dyn-compatibility/avoid-ice-on-warning-3.old.stderr b/tests/ui/dyn-compatibility/avoid-ice-on-warning-3.old.stderr index 4cfac943375..7b299fa3cab 100644 --- a/tests/ui/dyn-compatibility/avoid-ice-on-warning-3.old.stderr +++ b/tests/ui/dyn-compatibility/avoid-ice-on-warning-3.old.stderr @@ -6,7 +6,7 @@ LL | trait B { fn f(a: A) -> A; } | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | trait B { fn f(a: dyn A) -> A; } diff --git a/tests/ui/dyn-compatibility/avoid-ice-on-warning.old.stderr b/tests/ui/dyn-compatibility/avoid-ice-on-warning.old.stderr index 4645b35f8f1..849f2a2ecc4 100644 --- a/tests/ui/dyn-compatibility/avoid-ice-on-warning.old.stderr +++ b/tests/ui/dyn-compatibility/avoid-ice-on-warning.old.stderr @@ -24,7 +24,7 @@ LL | fn call_this<F>(f: F) : Fn(&str) + call_that {} | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | fn call_this<F>(f: F) : dyn Fn(&str) + call_that {} diff --git a/tests/ui/issues/auxiliary/issue-8401.rs b/tests/ui/dyn-keyword/auxiliary/aux-8401.rs index 7d0eb5cd876..7d0eb5cd876 100644 --- a/tests/ui/issues/auxiliary/issue-8401.rs +++ b/tests/ui/dyn-keyword/auxiliary/aux-8401.rs diff --git a/tests/ui/dyn-keyword/methods-with-mut-trait-and-polymorphic-objects-issue-8401.rs b/tests/ui/dyn-keyword/methods-with-mut-trait-and-polymorphic-objects-issue-8401.rs new file mode 100644 index 00000000000..313c6891720 --- /dev/null +++ b/tests/ui/dyn-keyword/methods-with-mut-trait-and-polymorphic-objects-issue-8401.rs @@ -0,0 +1,7 @@ +//@ run-pass +//@ aux-build:aux-8401.rs +// https://github.com/rust-lang/rust/issues/8401 + +extern crate aux_8401; + +pub fn main() {} diff --git a/tests/ui/dynamically-sized-types/dst-coercions.stderr b/tests/ui/dynamically-sized-types/dst-coercions.stderr index e7c48783df0..ebc025a98cc 100644 --- a/tests/ui/dynamically-sized-types/dst-coercions.stderr +++ b/tests/ui/dynamically-sized-types/dst-coercions.stderr @@ -6,7 +6,7 @@ LL | trait T { fn dummy(&self) { } } | | | method in this trait | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/editions/never-type-fallback-breaking.e2021.stderr b/tests/ui/editions/never-type-fallback-breaking.e2021.stderr index e30c0adb79d..3d4a10aeaaf 100644 --- a/tests/ui/editions/never-type-fallback-breaking.e2021.stderr +++ b/tests/ui/editions/never-type-fallback-breaking.e2021.stderr @@ -12,7 +12,7 @@ note: in edition 2024, the requirement `!: Default` will fail | LL | true => Default::default(), | ^^^^^^^^^^^^^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | let x: () = match true { @@ -111,7 +111,7 @@ note: in edition 2024, the requirement `!: Default` will fail | LL | true => Default::default(), | ^^^^^^^^^^^^^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | let x: () = match true { @@ -132,7 +132,7 @@ note: in edition 2024, the requirement `!: Default` will fail | LL | deserialize()?; | ^^^^^^^^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | deserialize::<()>()?; @@ -153,7 +153,7 @@ note: in edition 2024, the requirement `(): From<!>` will fail | LL | help(1)?; | ^^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | help::<(), _>(1)?; @@ -174,7 +174,7 @@ note: in edition 2024, the requirement `!: Default` will fail | LL | takes_apit(|| Default::default())?; | ^^^^^^^^^^^^^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | takes_apit::<()>(|| Default::default())?; @@ -195,7 +195,7 @@ note: in edition 2024, the requirement `!: Default` will fail | LL | takes_apit2(mk()?); | ^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | takes_apit2(mk::<()>()?); diff --git a/tests/ui/issues/issue-8761.rs b/tests/ui/enum/enum-discriminant-type-mismatch-8761.rs index 5883bb96695..ae09b919dc1 100644 --- a/tests/ui/issues/issue-8761.rs +++ b/tests/ui/enum/enum-discriminant-type-mismatch-8761.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/8761 enum Foo { A = 1i64, //~^ ERROR mismatched types diff --git a/tests/ui/issues/issue-8761.stderr b/tests/ui/enum/enum-discriminant-type-mismatch-8761.stderr index 4a9db568913..f1645183e17 100644 --- a/tests/ui/issues/issue-8761.stderr +++ b/tests/ui/enum/enum-discriminant-type-mismatch-8761.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/issue-8761.rs:2:9 + --> $DIR/enum-discriminant-type-mismatch-8761.rs:3:9 | LL | A = 1i64, | ^^^^ expected `isize`, found `i64` @@ -11,7 +11,7 @@ LL + A = 1isize, | error[E0308]: mismatched types - --> $DIR/issue-8761.rs:5:9 + --> $DIR/enum-discriminant-type-mismatch-8761.rs:6:9 | LL | B = 2u8 | ^^^ expected `isize`, found `u8` diff --git a/tests/ui/issues/issue-80607.rs b/tests/ui/enum/enum-variant-field-error-80607.rs index 63f4df359b8..aa3f2f7c526 100644 --- a/tests/ui/issues/issue-80607.rs +++ b/tests/ui/enum/enum-variant-field-error-80607.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/80607 // This tests makes sure the diagnostics print the offending enum variant, not just the type. pub enum Enum { V1(i32), diff --git a/tests/ui/issues/issue-80607.stderr b/tests/ui/enum/enum-variant-field-error-80607.stderr index 8f9f494c8b7..8d088ef04bb 100644 --- a/tests/ui/issues/issue-80607.stderr +++ b/tests/ui/enum/enum-variant-field-error-80607.stderr @@ -1,5 +1,5 @@ error[E0559]: variant `Enum::V1` has no field named `x` - --> $DIR/issue-80607.rs:7:16 + --> $DIR/enum-variant-field-error-80607.rs:8:16 | LL | V1(i32), | -- `Enum::V1` defined here diff --git a/tests/ui/issues/issue-8506.rs b/tests/ui/enum/simple-enum-usage-8506.rs index 30a789a3e27..ebe095d84e4 100644 --- a/tests/ui/issues/issue-8506.rs +++ b/tests/ui/enum/simple-enum-usage-8506.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/8506 //@ run-pass #![allow(non_upper_case_globals)] diff --git a/tests/ui/errors/dynless-turbofish-e0191-issue-91997.stderr b/tests/ui/errors/dynless-turbofish-e0191-issue-91997.stderr index 0004ea82fac..c1584e66e33 100644 --- a/tests/ui/errors/dynless-turbofish-e0191-issue-91997.stderr +++ b/tests/ui/errors/dynless-turbofish-e0191-issue-91997.stderr @@ -6,7 +6,7 @@ LL | let _ = MyIterator::next; | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | let _ = <dyn MyIterator>::next; diff --git a/tests/ui/errors/issue-89280-emitter-overflow-splice-lines.stderr b/tests/ui/errors/issue-89280-emitter-overflow-splice-lines.stderr index d9acdbea3fc..462819c138f 100644 --- a/tests/ui/errors/issue-89280-emitter-overflow-splice-lines.stderr +++ b/tests/ui/errors/issue-89280-emitter-overflow-splice-lines.stderr @@ -9,7 +9,7 @@ LL | | )) {} | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686> - = note: `#[warn(anonymous_parameters)]` on by default + = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default help: try naming the parameter or explicitly ignoring it | LL | fn test(x: u32, _: ( diff --git a/tests/ui/errors/remap-path-prefix-diagnostics.not-diag-in-deps.stderr b/tests/ui/errors/remap-path-prefix-diagnostics.not-diag-in-deps.stderr index 229bfbe59e5..234e251b2ad 100644 --- a/tests/ui/errors/remap-path-prefix-diagnostics.not-diag-in-deps.stderr +++ b/tests/ui/errors/remap-path-prefix-diagnostics.not-diag-in-deps.stderr @@ -2,8 +2,13 @@ error[E0277]: `A` doesn't implement `std::fmt::Display` --> remapped/errors/remap-path-prefix-diagnostics.rs:LL:COL | LL | impl r#trait::Trait for A {} - | ^ the trait `std::fmt::Display` is not implemented for `A` + | ^ unsatisfied trait bound | +help: the trait `std::fmt::Display` is not implemented for `A` + --> remapped/errors/remap-path-prefix-diagnostics.rs:LL:COL + | +LL | struct A; + | ^^^^^^^^ note: required by a bound in `Trait` --> $DIR/auxiliary/trait.rs:LL:COL | diff --git a/tests/ui/errors/remap-path-prefix-diagnostics.only-debuginfo-in-deps.stderr b/tests/ui/errors/remap-path-prefix-diagnostics.only-debuginfo-in-deps.stderr index a59af3b6a82..3b0d66e75e8 100644 --- a/tests/ui/errors/remap-path-prefix-diagnostics.only-debuginfo-in-deps.stderr +++ b/tests/ui/errors/remap-path-prefix-diagnostics.only-debuginfo-in-deps.stderr @@ -2,8 +2,13 @@ error[E0277]: `A` doesn't implement `std::fmt::Display` --> $DIR/remap-path-prefix-diagnostics.rs:LL:COL | LL | impl r#trait::Trait for A {} - | ^ the trait `std::fmt::Display` is not implemented for `A` + | ^ unsatisfied trait bound | +help: the trait `std::fmt::Display` is not implemented for `A` + --> $DIR/remap-path-prefix-diagnostics.rs:LL:COL + | +LL | struct A; + | ^^^^^^^^ note: required by a bound in `Trait` --> $DIR/auxiliary/trait-debuginfo.rs:LL:COL | diff --git a/tests/ui/errors/remap-path-prefix-diagnostics.only-diag-in-deps.stderr b/tests/ui/errors/remap-path-prefix-diagnostics.only-diag-in-deps.stderr index 18fb9afcf39..e77c0e5f68d 100644 --- a/tests/ui/errors/remap-path-prefix-diagnostics.only-diag-in-deps.stderr +++ b/tests/ui/errors/remap-path-prefix-diagnostics.only-diag-in-deps.stderr @@ -2,8 +2,13 @@ error[E0277]: `A` doesn't implement `std::fmt::Display` --> $DIR/remap-path-prefix-diagnostics.rs:LL:COL | LL | impl r#trait::Trait for A {} - | ^ the trait `std::fmt::Display` is not implemented for `A` + | ^ unsatisfied trait bound | +help: the trait `std::fmt::Display` is not implemented for `A` + --> $DIR/remap-path-prefix-diagnostics.rs:LL:COL + | +LL | struct A; + | ^^^^^^^^ note: required by a bound in `Trait` --> $DIR/auxiliary/trait-diag.rs:LL:COL | diff --git a/tests/ui/errors/remap-path-prefix-diagnostics.only-macro-in-deps.stderr b/tests/ui/errors/remap-path-prefix-diagnostics.only-macro-in-deps.stderr index 9e770f07fba..91c9cd90152 100644 --- a/tests/ui/errors/remap-path-prefix-diagnostics.only-macro-in-deps.stderr +++ b/tests/ui/errors/remap-path-prefix-diagnostics.only-macro-in-deps.stderr @@ -2,8 +2,13 @@ error[E0277]: `A` doesn't implement `std::fmt::Display` --> $DIR/remap-path-prefix-diagnostics.rs:LL:COL | LL | impl r#trait::Trait for A {} - | ^ the trait `std::fmt::Display` is not implemented for `A` + | ^ unsatisfied trait bound | +help: the trait `std::fmt::Display` is not implemented for `A` + --> $DIR/remap-path-prefix-diagnostics.rs:LL:COL + | +LL | struct A; + | ^^^^^^^^ note: required by a bound in `Trait` --> $DIR/auxiliary/trait-macro.rs:LL:COL | diff --git a/tests/ui/errors/remap-path-prefix-diagnostics.with-debuginfo-in-deps.stderr b/tests/ui/errors/remap-path-prefix-diagnostics.with-debuginfo-in-deps.stderr index a59af3b6a82..3b0d66e75e8 100644 --- a/tests/ui/errors/remap-path-prefix-diagnostics.with-debuginfo-in-deps.stderr +++ b/tests/ui/errors/remap-path-prefix-diagnostics.with-debuginfo-in-deps.stderr @@ -2,8 +2,13 @@ error[E0277]: `A` doesn't implement `std::fmt::Display` --> $DIR/remap-path-prefix-diagnostics.rs:LL:COL | LL | impl r#trait::Trait for A {} - | ^ the trait `std::fmt::Display` is not implemented for `A` + | ^ unsatisfied trait bound | +help: the trait `std::fmt::Display` is not implemented for `A` + --> $DIR/remap-path-prefix-diagnostics.rs:LL:COL + | +LL | struct A; + | ^^^^^^^^ note: required by a bound in `Trait` --> $DIR/auxiliary/trait-debuginfo.rs:LL:COL | diff --git a/tests/ui/errors/remap-path-prefix-diagnostics.with-diag-in-deps.stderr b/tests/ui/errors/remap-path-prefix-diagnostics.with-diag-in-deps.stderr index ca6f2b1697a..00a647df61f 100644 --- a/tests/ui/errors/remap-path-prefix-diagnostics.with-diag-in-deps.stderr +++ b/tests/ui/errors/remap-path-prefix-diagnostics.with-diag-in-deps.stderr @@ -2,8 +2,13 @@ error[E0277]: `A` doesn't implement `std::fmt::Display` --> remapped/errors/remap-path-prefix-diagnostics.rs:LL:COL | LL | impl r#trait::Trait for A {} - | ^ the trait `std::fmt::Display` is not implemented for `A` + | ^ unsatisfied trait bound | +help: the trait `std::fmt::Display` is not implemented for `A` + --> remapped/errors/remap-path-prefix-diagnostics.rs:LL:COL + | +LL | struct A; + | ^^^^^^^^ note: required by a bound in `Trait` --> remapped/errors/auxiliary/trait-diag.rs:LL:COL | diff --git a/tests/ui/errors/remap-path-prefix-diagnostics.with-macro-in-deps.stderr b/tests/ui/errors/remap-path-prefix-diagnostics.with-macro-in-deps.stderr index 9e770f07fba..91c9cd90152 100644 --- a/tests/ui/errors/remap-path-prefix-diagnostics.with-macro-in-deps.stderr +++ b/tests/ui/errors/remap-path-prefix-diagnostics.with-macro-in-deps.stderr @@ -2,8 +2,13 @@ error[E0277]: `A` doesn't implement `std::fmt::Display` --> $DIR/remap-path-prefix-diagnostics.rs:LL:COL | LL | impl r#trait::Trait for A {} - | ^ the trait `std::fmt::Display` is not implemented for `A` + | ^ unsatisfied trait bound | +help: the trait `std::fmt::Display` is not implemented for `A` + --> $DIR/remap-path-prefix-diagnostics.rs:LL:COL + | +LL | struct A; + | ^^^^^^^^ note: required by a bound in `Trait` --> $DIR/auxiliary/trait-macro.rs:LL:COL | diff --git a/tests/ui/explicit-tail-calls/ret-ty-hr-mismatch.rs b/tests/ui/explicit-tail-calls/ret-ty-hr-mismatch.rs new file mode 100644 index 00000000000..8ad244568a3 --- /dev/null +++ b/tests/ui/explicit-tail-calls/ret-ty-hr-mismatch.rs @@ -0,0 +1,15 @@ +#![feature(explicit_tail_calls)] +#![expect(incomplete_features)] + +fn foo() -> for<'a> fn(&'a i32) { + become bar(); + //~^ ERROR mismatched signatures +} + +fn bar() -> fn(&'static i32) { + dummy +} + +fn dummy(_: &i32) {} + +fn main() {} diff --git a/tests/ui/explicit-tail-calls/ret-ty-hr-mismatch.stderr b/tests/ui/explicit-tail-calls/ret-ty-hr-mismatch.stderr new file mode 100644 index 00000000000..f6594580ba5 --- /dev/null +++ b/tests/ui/explicit-tail-calls/ret-ty-hr-mismatch.stderr @@ -0,0 +1,12 @@ +error: mismatched signatures + --> $DIR/ret-ty-hr-mismatch.rs:5:5 + | +LL | become bar(); + | ^^^^^^^^^^^^ + | + = note: `become` requires caller and callee to have matching signatures + = note: caller signature: `fn() -> for<'a> fn(&'a i32)` + = note: callee signature: `fn() -> fn(&'static i32)` + +error: aborting due to 1 previous error + diff --git a/tests/ui/explicit-tail-calls/ret-ty-modulo-anonymization.rs b/tests/ui/explicit-tail-calls/ret-ty-modulo-anonymization.rs new file mode 100644 index 00000000000..0cd4e204278 --- /dev/null +++ b/tests/ui/explicit-tail-calls/ret-ty-modulo-anonymization.rs @@ -0,0 +1,16 @@ +// Ensure that we anonymize the output of a function for tail call signature compatibility. + +//@ check-pass + +#![feature(explicit_tail_calls)] +#![expect(incomplete_features)] + +fn foo() -> for<'a> fn(&'a ()) { + become bar(); +} + +fn bar() -> for<'b> fn(&'b ()) { + todo!() +} + +fn main() {} diff --git a/tests/ui/expr/if/if-ret.stderr b/tests/ui/expr/if/if-ret.stderr index e5464affd2f..e53a1e3b081 100644 --- a/tests/ui/expr/if/if-ret.stderr +++ b/tests/ui/expr/if/if-ret.stderr @@ -6,7 +6,7 @@ LL | fn foo() { if (return) { } } | | | any code following this expression is unreachable | - = note: `#[warn(unreachable_code)]` on by default + = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/extern/extern-no-mangle.stderr b/tests/ui/extern/extern-no-mangle.stderr index b07cf0d4b4d..69c4fbb935d 100644 --- a/tests/ui/extern/extern-no-mangle.stderr +++ b/tests/ui/extern/extern-no-mangle.stderr @@ -5,7 +5,7 @@ LL | #[no_mangle] | ^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[no_mangle]` can be applied to functions, statics + = help: `#[no_mangle]` can be applied to functions and statics note: the lint level is defined here --> $DIR/extern-no-mangle.rs:1:9 | @@ -19,7 +19,7 @@ LL | #[no_mangle] | ^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[no_mangle]` can be applied to methods, functions, statics + = help: `#[no_mangle]` can be applied to methods, functions, and statics warning: `#[no_mangle]` attribute cannot be used on statements --> $DIR/extern-no-mangle.rs:24:5 @@ -28,7 +28,7 @@ LL | #[no_mangle] | ^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[no_mangle]` can be applied to functions, statics + = help: `#[no_mangle]` can be applied to functions and statics warning: 3 warnings emitted diff --git a/tests/ui/issues/issue-75283.rs b/tests/ui/extern/function-definition-in-extern-block-75283.rs index d556132e47f..e2b7358743b 100644 --- a/tests/ui/issues/issue-75283.rs +++ b/tests/ui/extern/function-definition-in-extern-block-75283.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/75283 extern "C" { fn lol() { //~ ERROR incorrect function inside `extern` block println!(""); diff --git a/tests/ui/issues/issue-75283.stderr b/tests/ui/extern/function-definition-in-extern-block-75283.stderr index 240d9716a55..67be1c29599 100644 --- a/tests/ui/issues/issue-75283.stderr +++ b/tests/ui/extern/function-definition-in-extern-block-75283.stderr @@ -1,5 +1,5 @@ error: incorrect function inside `extern` block - --> $DIR/issue-75283.rs:2:8 + --> $DIR/function-definition-in-extern-block-75283.rs:3:8 | LL | extern "C" { | ---------- `extern` blocks define existing foreign functions and functions inside of them cannot have a body diff --git a/tests/ui/extern/issue-47725.rs b/tests/ui/extern/issue-47725.rs index b0a0af930de..6b4d0dd30e0 100644 --- a/tests/ui/extern/issue-47725.rs +++ b/tests/ui/extern/issue-47725.rs @@ -4,12 +4,14 @@ //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to +//~| HELP remove the attribute struct Foo; #[link_name = "foobar"] //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to +//~| HELP remove the attribute extern "C" { fn foo() -> u32; } @@ -19,6 +21,7 @@ extern "C" { //~| HELP must be of the form //~| WARN attribute cannot be used on //~| WARN previously accepted +//~| HELP remove the attribute //~| HELP can be applied to //~| NOTE for more information, visit extern "C" { diff --git a/tests/ui/extern/issue-47725.stderr b/tests/ui/extern/issue-47725.stderr index 704b1d81b63..27da18df37c 100644 --- a/tests/ui/extern/issue-47725.stderr +++ b/tests/ui/extern/issue-47725.stderr @@ -1,5 +1,5 @@ error[E0539]: malformed `link_name` attribute input - --> $DIR/issue-47725.rs:17:1 + --> $DIR/issue-47725.rs:19:1 | LL | #[link_name] | ^^^^^^^^^^^^ help: must be of the form: `#[link_name = "name"]` @@ -13,7 +13,7 @@ LL | #[link_name = "foo"] | ^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_name]` can be applied to foreign functions, foreign statics + = help: `#[link_name]` can be applied to foreign functions and foreign statics note: the lint level is defined here --> $DIR/issue-47725.rs:1:9 | @@ -21,22 +21,22 @@ LL | #![warn(unused_attributes)] | ^^^^^^^^^^^^^^^^^ warning: `#[link_name]` attribute cannot be used on foreign modules - --> $DIR/issue-47725.rs:9:1 + --> $DIR/issue-47725.rs:10:1 | LL | #[link_name = "foobar"] | ^^^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_name]` can be applied to foreign functions, foreign statics + = help: `#[link_name]` can be applied to foreign functions and foreign statics warning: `#[link_name]` attribute cannot be used on foreign modules - --> $DIR/issue-47725.rs:17:1 + --> $DIR/issue-47725.rs:19:1 | LL | #[link_name] | ^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_name]` can be applied to foreign functions, foreign statics + = help: `#[link_name]` can be applied to foreign functions and foreign statics error: aborting due to 1 previous error; 3 warnings emitted diff --git a/tests/ui/extern/no-mangle-associated-fn.stderr b/tests/ui/extern/no-mangle-associated-fn.stderr index 772cbf6cf7d..79d8144448f 100644 --- a/tests/ui/extern/no-mangle-associated-fn.stderr +++ b/tests/ui/extern/no-mangle-associated-fn.stderr @@ -4,7 +4,7 @@ warning: trait `Bar` is never used LL | trait Bar { | ^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/feature-gates/feature-gate-abi-x86-interrupt.rs b/tests/ui/feature-gates/feature-gate-abi-x86-interrupt.rs index c4fdb5f427c..0abdf0c5309 100644 --- a/tests/ui/feature-gates/feature-gate-abi-x86-interrupt.rs +++ b/tests/ui/feature-gates/feature-gate-abi-x86-interrupt.rs @@ -7,22 +7,22 @@ extern crate minicore; use minicore::*; -extern "x86-interrupt" fn f7() {} //~ ERROR "x86-interrupt" ABI is experimental +extern "x86-interrupt" fn f7(_p: *const u8) {} //~ ERROR "x86-interrupt" ABI is experimental trait Tr { - extern "x86-interrupt" fn m7(); //~ ERROR "x86-interrupt" ABI is experimental - extern "x86-interrupt" fn dm7() {} //~ ERROR "x86-interrupt" ABI is experimental + extern "x86-interrupt" fn m7(_p: *const u8); //~ ERROR "x86-interrupt" ABI is experimental + extern "x86-interrupt" fn dm7(_p: *const u8) {} //~ ERROR "x86-interrupt" ABI is experimental } struct S; // Methods in trait impl impl Tr for S { - extern "x86-interrupt" fn m7() {} //~ ERROR "x86-interrupt" ABI is experimental + extern "x86-interrupt" fn m7(_p: *const u8) {} //~ ERROR "x86-interrupt" ABI is experimental } // Methods in inherent impl impl S { - extern "x86-interrupt" fn im7() {} //~ ERROR "x86-interrupt" ABI is experimental + extern "x86-interrupt" fn im7(_p: *const u8) {} //~ ERROR "x86-interrupt" ABI is experimental } type A7 = extern "x86-interrupt" fn(); //~ ERROR "x86-interrupt" ABI is experimental diff --git a/tests/ui/feature-gates/feature-gate-abi-x86-interrupt.stderr b/tests/ui/feature-gates/feature-gate-abi-x86-interrupt.stderr index 67211d402c6..b53917dda61 100644 --- a/tests/ui/feature-gates/feature-gate-abi-x86-interrupt.stderr +++ b/tests/ui/feature-gates/feature-gate-abi-x86-interrupt.stderr @@ -1,7 +1,7 @@ error[E0658]: the extern "x86-interrupt" ABI is experimental and subject to change --> $DIR/feature-gate-abi-x86-interrupt.rs:10:8 | -LL | extern "x86-interrupt" fn f7() {} +LL | extern "x86-interrupt" fn f7(_p: *const u8) {} | ^^^^^^^^^^^^^^^ | = note: see issue #40180 <https://github.com/rust-lang/rust/issues/40180> for more information @@ -11,7 +11,7 @@ LL | extern "x86-interrupt" fn f7() {} error[E0658]: the extern "x86-interrupt" ABI is experimental and subject to change --> $DIR/feature-gate-abi-x86-interrupt.rs:12:12 | -LL | extern "x86-interrupt" fn m7(); +LL | extern "x86-interrupt" fn m7(_p: *const u8); | ^^^^^^^^^^^^^^^ | = note: see issue #40180 <https://github.com/rust-lang/rust/issues/40180> for more information @@ -21,7 +21,7 @@ LL | extern "x86-interrupt" fn m7(); error[E0658]: the extern "x86-interrupt" ABI is experimental and subject to change --> $DIR/feature-gate-abi-x86-interrupt.rs:13:12 | -LL | extern "x86-interrupt" fn dm7() {} +LL | extern "x86-interrupt" fn dm7(_p: *const u8) {} | ^^^^^^^^^^^^^^^ | = note: see issue #40180 <https://github.com/rust-lang/rust/issues/40180> for more information @@ -31,7 +31,7 @@ LL | extern "x86-interrupt" fn dm7() {} error[E0658]: the extern "x86-interrupt" ABI is experimental and subject to change --> $DIR/feature-gate-abi-x86-interrupt.rs:20:12 | -LL | extern "x86-interrupt" fn m7() {} +LL | extern "x86-interrupt" fn m7(_p: *const u8) {} | ^^^^^^^^^^^^^^^ | = note: see issue #40180 <https://github.com/rust-lang/rust/issues/40180> for more information @@ -41,7 +41,7 @@ LL | extern "x86-interrupt" fn m7() {} error[E0658]: the extern "x86-interrupt" ABI is experimental and subject to change --> $DIR/feature-gate-abi-x86-interrupt.rs:25:12 | -LL | extern "x86-interrupt" fn im7() {} +LL | extern "x86-interrupt" fn im7(_p: *const u8) {} | ^^^^^^^^^^^^^^^ | = note: see issue #40180 <https://github.com/rust-lang/rust/issues/40180> for more information diff --git a/tests/ui/feature-gates/feature-gate-allow-internal-unstable-struct.stderr b/tests/ui/feature-gates/feature-gate-allow-internal-unstable-struct.stderr index cb8cf29e99d..42141b891ae 100644 --- a/tests/ui/feature-gates/feature-gate-allow-internal-unstable-struct.stderr +++ b/tests/ui/feature-gates/feature-gate-allow-internal-unstable-struct.stderr @@ -13,7 +13,7 @@ error: `#[allow_internal_unstable]` attribute cannot be used on structs LL | #[allow_internal_unstable(something)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: `#[allow_internal_unstable]` can be applied to macro defs, functions + = help: `#[allow_internal_unstable]` can be applied to macro defs and functions error: aborting due to 2 previous errors diff --git a/tests/ui/feature-gates/feature-gate-effective-target-features.default.stderr b/tests/ui/feature-gates/feature-gate-effective-target-features.default.stderr new file mode 100644 index 00000000000..34a56fe342e --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-effective-target-features.default.stderr @@ -0,0 +1,37 @@ +error[E0658]: the `#[force_target_feature]` attribute is an experimental feature + --> $DIR/feature-gate-effective-target-features.rs:13:5 + | +LL | #[unsafe(force_target_feature(enable = "avx2"))] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #143352 <https://github.com/rust-lang/rust/issues/143352> for more information + = help: add `#![feature(effective_target_features)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + +error: `#[target_feature(..)]` cannot be applied to safe trait method + --> $DIR/feature-gate-effective-target-features.rs:21:5 + | +LL | #[target_feature(enable = "avx2")] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot be applied to safe trait method +LL | +LL | fn foo(&self) {} + | ------------- not an `unsafe` function + +error[E0053]: method `foo` has an incompatible type for trait + --> $DIR/feature-gate-effective-target-features.rs:23:5 + | +LL | fn foo(&self) {} + | ^^^^^^^^^^^^^ expected safe fn, found unsafe fn + | +note: type in trait + --> $DIR/feature-gate-effective-target-features.rs:7:5 + | +LL | fn foo(&self); + | ^^^^^^^^^^^^^^ + = note: expected signature `fn(&Bar2)` + found signature `#[target_features] fn(&Bar2)` + +error: aborting due to 3 previous errors + +Some errors have detailed explanations: E0053, E0658. +For more information about an error, try `rustc --explain E0053`. diff --git a/tests/ui/feature-gates/feature-gate-effective-target-features.feature.stderr b/tests/ui/feature-gates/feature-gate-effective-target-features.feature.stderr new file mode 100644 index 00000000000..d51956fa4d2 --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-effective-target-features.feature.stderr @@ -0,0 +1,35 @@ +warning: the feature `effective_target_features` is incomplete and may not be safe to use and/or cause compiler crashes + --> $DIR/feature-gate-effective-target-features.rs:3:30 + | +LL | #![cfg_attr(feature, feature(effective_target_features))] + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #143352 <https://github.com/rust-lang/rust/issues/143352> for more information + = note: `#[warn(incomplete_features)]` on by default + +error: `#[target_feature(..)]` cannot be applied to safe trait method + --> $DIR/feature-gate-effective-target-features.rs:21:5 + | +LL | #[target_feature(enable = "avx2")] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot be applied to safe trait method +LL | +LL | fn foo(&self) {} + | ------------- not an `unsafe` function + +error[E0053]: method `foo` has an incompatible type for trait + --> $DIR/feature-gate-effective-target-features.rs:23:5 + | +LL | fn foo(&self) {} + | ^^^^^^^^^^^^^ expected safe fn, found unsafe fn + | +note: type in trait + --> $DIR/feature-gate-effective-target-features.rs:7:5 + | +LL | fn foo(&self); + | ^^^^^^^^^^^^^^ + = note: expected signature `fn(&Bar2)` + found signature `#[target_features] fn(&Bar2)` + +error: aborting due to 2 previous errors; 1 warning emitted + +For more information about this error, try `rustc --explain E0053`. diff --git a/tests/ui/feature-gates/feature-gate-effective-target-features.rs b/tests/ui/feature-gates/feature-gate-effective-target-features.rs new file mode 100644 index 00000000000..d383897e438 --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-effective-target-features.rs @@ -0,0 +1,27 @@ +//@ revisions: default feature +//@ only-x86_64 +#![cfg_attr(feature, feature(effective_target_features))] +//[feature]~^ WARN the feature `effective_target_features` is incomplete and may not be safe to use and/or cause compiler crashes + +trait Foo { + fn foo(&self); +} + +struct Bar; + +impl Foo for Bar { + #[unsafe(force_target_feature(enable = "avx2"))] + //[default]~^ ERROR the `#[force_target_feature]` attribute is an experimental feature + fn foo(&self) {} +} + +struct Bar2; + +impl Foo for Bar2 { + #[target_feature(enable = "avx2")] + //~^ ERROR `#[target_feature(..)]` cannot be applied to safe trait method + fn foo(&self) {} + //~^ ERROR method `foo` has an incompatible type for trait +} + +fn main() {} diff --git a/tests/ui/feature-gates/feature-gate-reborrow.rs b/tests/ui/feature-gates/feature-gate-reborrow.rs new file mode 100644 index 00000000000..f016f6c6bfa --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-reborrow.rs @@ -0,0 +1,3 @@ +use std::marker::Reborrow; //~ ERROR use of unstable library feature `reborrow` + +fn main() {} diff --git a/tests/ui/feature-gates/feature-gate-reborrow.stderr b/tests/ui/feature-gates/feature-gate-reborrow.stderr new file mode 100644 index 00000000000..5e3033f3bf1 --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-reborrow.stderr @@ -0,0 +1,13 @@ +error[E0658]: use of unstable library feature `reborrow` + --> $DIR/feature-gate-reborrow.rs:1:5 + | +LL | use std::marker::Reborrow; + | ^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #145612 <https://github.com/rust-lang/rust/issues/145612> for more information + = help: add `#![feature(reborrow)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/feature-gates/feature-gate-repr-simd.stderr b/tests/ui/feature-gates/feature-gate-repr-simd.stderr index 3bf8ec61705..0f1929038fe 100644 --- a/tests/ui/feature-gates/feature-gate-repr-simd.stderr +++ b/tests/ui/feature-gates/feature-gate-repr-simd.stderr @@ -49,7 +49,7 @@ LL | #[repr(simd)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/68585> - = note: `#[deny(conflicting_repr_hints)]` on by default + = note: `#[deny(conflicting_repr_hints)]` (part of `#[deny(future_incompatible)]`) on by default error[E0517]: attribute should be applied to a struct --> $DIR/feature-gate-repr-simd.rs:9:8 @@ -85,5 +85,5 @@ LL | #[repr(simd)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/68585> - = note: `#[deny(conflicting_repr_hints)]` on by default + = note: `#[deny(conflicting_repr_hints)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/feature-gates/feature-gate-unboxed-closures-manual-impls.stderr b/tests/ui/feature-gates/feature-gate-unboxed-closures-manual-impls.stderr index 334bc63b7ee..b2a2eba9ad1 100644 --- a/tests/ui/feature-gates/feature-gate-unboxed-closures-manual-impls.stderr +++ b/tests/ui/feature-gates/feature-gate-unboxed-closures-manual-impls.stderr @@ -93,7 +93,11 @@ error[E0277]: expected a `FnMut()` closure, found `Foo` LL | impl Fn<()> for Foo { | ^^^ expected an `FnMut()` closure, found `Foo` | - = help: the trait `FnMut()` is not implemented for `Foo` +help: the trait `FnMut()` is not implemented for `Foo` + --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:8:1 + | +LL | struct Foo; + | ^^^^^^^^^^ = note: wrap the `Foo` in a closure with no arguments: `|| { /* code */ }` note: required by a bound in `Fn` --> $SRC_DIR/core/src/ops/function.rs:LL:COL @@ -163,7 +167,11 @@ error[E0277]: expected a `FnOnce()` closure, found `Bar` LL | impl FnMut<()> for Bar { | ^^^ expected an `FnOnce()` closure, found `Bar` | - = help: the trait `FnOnce()` is not implemented for `Bar` +help: the trait `FnOnce()` is not implemented for `Bar` + --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:25:1 + | +LL | struct Bar; + | ^^^^^^^^^^ = note: wrap the `Bar` in a closure with no arguments: `|| { /* code */ }` note: required by a bound in `FnMut` --> $SRC_DIR/core/src/ops/function.rs:LL:COL diff --git a/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs-error.rs b/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs-error.rs index 130dd48b0fe..f391cf92fb6 100644 --- a/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs-error.rs +++ b/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs-error.rs @@ -40,7 +40,7 @@ mod inline { #[inline = "2100"] fn f() { } //~^ ERROR valid forms for the attribute are //~| WARN this was previously accepted - //~| NOTE #[deny(ill_formed_attribute_input)]` on by default + //~| NOTE `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default //~| NOTE for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> #[inline] struct S; diff --git a/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs-error.stderr b/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs-error.stderr index 13dce72a882..3b010c3e312 100644 --- a/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs-error.stderr +++ b/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs-error.stderr @@ -30,7 +30,7 @@ error: `#[export_name]` attribute cannot be used on crates LL | #![export_name = "2200"] | ^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: `#[export_name]` can be applied to functions, statics + = help: `#[export_name]` can be applied to functions and statics error: `#[inline]` attribute cannot be used on crates --> $DIR/issue-43106-gating-of-builtin-attrs-error.rs:28:1 @@ -86,7 +86,7 @@ error: `#[export_name]` attribute cannot be used on modules LL | #[export_name = "2200"] | ^^^^^^^^^^^^^^^^^^^^^^^ | - = help: `#[export_name]` can be applied to functions, statics + = help: `#[export_name]` can be applied to functions and statics error: `#[export_name]` attribute cannot be used on modules --> $DIR/issue-43106-gating-of-builtin-attrs-error.rs:85:17 @@ -94,7 +94,7 @@ error: `#[export_name]` attribute cannot be used on modules LL | mod inner { #![export_name="2200"] } | ^^^^^^^^^^^^^^^^^^^^^^ | - = help: `#[export_name]` can be applied to functions, statics + = help: `#[export_name]` can be applied to functions and statics error: `#[export_name]` attribute cannot be used on structs --> $DIR/issue-43106-gating-of-builtin-attrs-error.rs:90:5 @@ -102,7 +102,7 @@ error: `#[export_name]` attribute cannot be used on structs LL | #[export_name = "2200"] struct S; | ^^^^^^^^^^^^^^^^^^^^^^^ | - = help: `#[export_name]` can be applied to functions, statics + = help: `#[export_name]` can be applied to functions and statics error: `#[export_name]` attribute cannot be used on type aliases --> $DIR/issue-43106-gating-of-builtin-attrs-error.rs:93:5 @@ -110,7 +110,7 @@ error: `#[export_name]` attribute cannot be used on type aliases LL | #[export_name = "2200"] type T = S; | ^^^^^^^^^^^^^^^^^^^^^^^ | - = help: `#[export_name]` can be applied to functions, statics + = help: `#[export_name]` can be applied to functions and statics error: `#[export_name]` attribute cannot be used on inherent impl blocks --> $DIR/issue-43106-gating-of-builtin-attrs-error.rs:96:5 @@ -118,7 +118,7 @@ error: `#[export_name]` attribute cannot be used on inherent impl blocks LL | #[export_name = "2200"] impl S { } | ^^^^^^^^^^^^^^^^^^^^^^^ | - = help: `#[export_name]` can be applied to functions, statics + = help: `#[export_name]` can be applied to functions and statics error: `#[export_name]` attribute cannot be used on required trait methods --> $DIR/issue-43106-gating-of-builtin-attrs-error.rs:100:9 @@ -126,7 +126,7 @@ error: `#[export_name]` attribute cannot be used on required trait methods LL | #[export_name = "2200"] fn foo(); | ^^^^^^^^^^^^^^^^^^^^^^^ | - = help: `#[export_name]` can be applied to statics, functions, inherent methods, provided trait methods, trait methods in impl blocks + = help: `#[export_name]` can be applied to statics, functions, inherent methods, provided trait methods, and trait methods in impl blocks error: attribute should be applied to an `extern crate` item --> $DIR/issue-43106-gating-of-builtin-attrs-error.rs:56:1 @@ -305,7 +305,7 @@ LL | #[inline = "2100"] fn f() { } | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 37 previous errors @@ -320,5 +320,5 @@ LL | #[inline = "2100"] fn f() { } | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.rs b/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.rs index 8702d852a89..60666481bec 100644 --- a/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.rs +++ b/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.rs @@ -50,9 +50,11 @@ #![should_panic] //~ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to +//~| HELP remove the attribute #![ignore] //~ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to +//~| HELP remove the attribute #![no_implicit_prelude] #![reexport_test_harness_main = "2900"] // see gated-link-args.rs @@ -61,22 +63,28 @@ #![proc_macro_derive(Test)] //~ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to +//~| HELP remove the attribute #![doc = "2400"] #![cold] //~ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to +//~| HELP remove the attribute #![link()] //~ WARN attribute should be applied to an `extern` block //~^ WARN this was previously accepted #![link_name = "1900"] //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to +//~| HELP remove the attribute #![link_section = "1800"] //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to +//~| HELP remove the attribute #![must_use] -//~^ WARN `#[must_use]` has no effect +//~^ WARN attribute cannot be used on +//~| WARN previously accepted +//~| HELP can be applied to //~| HELP remove the attribute // see issue-43106-gating-of-stable.rs // see issue-43106-gating-of-unstable.rs @@ -184,21 +192,25 @@ mod macro_use { //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[macro_use] struct S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[macro_use] type T = S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[macro_use] impl S { } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute } #[macro_export] @@ -260,57 +272,68 @@ mod path { //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[path = "3800"] struct S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[path = "3800"] type T = S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[path = "3800"] impl S { } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute } #[automatically_derived] //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to +//~| HELP remove the attribute mod automatically_derived { mod inner { #![automatically_derived] } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[automatically_derived] fn f() { } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[automatically_derived] struct S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[automatically_derived] type T = S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[automatically_derived] trait W { } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[automatically_derived] impl S { } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[automatically_derived] impl W for S { } } @@ -319,11 +342,13 @@ mod automatically_derived { //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to +//~| HELP remove the attribute mod no_mangle { mod inner { #![no_mangle] } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[no_mangle] fn f() { } @@ -331,27 +356,32 @@ mod no_mangle { //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[no_mangle] type T = S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[no_mangle] impl S { } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute trait Tr { #[no_mangle] fn foo(); //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[no_mangle] fn bar() {} //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute } } @@ -359,11 +389,13 @@ mod no_mangle { //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to +//~| HELP remove the attribute mod should_panic { mod inner { #![should_panic] } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[should_panic] fn f() { } @@ -371,27 +403,32 @@ mod should_panic { //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[should_panic] type T = S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[should_panic] impl S { } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute } #[ignore] //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to +//~| HELP remove the attribute mod ignore { mod inner { #![ignore] } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[ignore] fn f() { } @@ -399,16 +436,19 @@ mod ignore { //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[ignore] type T = S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[ignore] impl S { } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute } #[no_implicit_prelude] @@ -419,21 +459,25 @@ mod no_implicit_prelude { //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[no_implicit_prelude] struct S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[no_implicit_prelude] type T = S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[no_implicit_prelude] impl S { } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute } #[reexport_test_harness_main = "2900"] @@ -467,21 +511,25 @@ mod macro_escape { //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[macro_escape] struct S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[macro_escape] type T = S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[macro_escape] impl S { } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute } #[no_std] @@ -524,12 +572,14 @@ mod doc { //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to +//~| HELP remove the attribute mod cold { mod inner { #![cold] } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[cold] fn f() { } @@ -537,64 +587,76 @@ mod cold { //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[cold] type T = S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute #[cold] impl S { } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can only be applied to + //~| HELP remove the attribute } #[link_name = "1900"] //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to +//~| HELP remove the attribute mod link_name { #[link_name = "1900"] //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute extern "C" { } mod inner { #![link_name="1900"] } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[link_name = "1900"] fn f() { } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[link_name = "1900"] struct S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[link_name = "1900"] type T = S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[link_name = "1900"] impl S { } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute } #[link_section = "1800"] //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to +//~| HELP remove the attribute mod link_section { mod inner { #![link_section="1800"] } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[link_section = "1800"] fn f() { } @@ -602,16 +664,19 @@ mod link_section { //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[link_section = "1800"] type T = S; //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute #[link_section = "1800"] impl S { } //~^ WARN attribute cannot be used on //~| WARN previously accepted //~| HELP can be applied to + //~| HELP remove the attribute } @@ -668,21 +733,29 @@ mod deprecated { #[deprecated] impl super::StructForDeprecated { } } -#[must_use] //~ WARN `#[must_use]` has no effect -//~^ HELP remove the attribute +#[must_use] //~ WARN attribute cannot be used on +//~| WARN previously accepted +//~| HELP can be applied to +//~| HELP remove the attribute mod must_use { - mod inner { #![must_use] } //~ WARN `#[must_use]` has no effect - //~^ HELP remove the attribute + mod inner { #![must_use] } //~ WARN attribute cannot be used on + //~| WARN previously accepted + //~| HELP can be applied to + //~| HELP remove the attribute #[must_use] fn f() { } #[must_use] struct S; - #[must_use] type T = S; //~ WARN `#[must_use]` has no effect - //~^ HELP remove the attribute + #[must_use] type T = S; //~ WARN attribute cannot be used on + //~| WARN previously accepted + //~| HELP can be applied to + //~| HELP remove the attribute - #[must_use] impl S { } //~ WARN `#[must_use]` has no effect - //~^ HELP remove the attribute + #[must_use] impl S { } //~ WARN attribute cannot be used on + //~| WARN previously accepted + //~| HELP can be applied to + //~| HELP remove the attribute } #[windows_subsystem = "windows"] diff --git a/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr b/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr index 8e2bffb91ca..7488c68b59f 100644 --- a/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr +++ b/tests/ui/feature-gates/issue-43106-gating-of-builtin-attrs.stderr @@ -1,5 +1,5 @@ warning: `#[macro_escape]` is a deprecated synonym for `#[macro_use]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:462:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:506:17 | LL | mod inner { #![macro_escape] } | ^^^^^^^^^^^^^^^^ @@ -7,7 +7,7 @@ LL | mod inner { #![macro_escape] } = help: try an outer attribute: `#[macro_use]` warning: `#[macro_escape]` is a deprecated synonym for `#[macro_use]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:459:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:503:1 | LL | #[macro_escape] | ^^^^^^^^^^^^^^^ @@ -43,151 +43,151 @@ LL | #![deny(x5100)] | ^^^^^ warning: unknown lint: `x5400` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:103:8 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:111:8 | LL | #[warn(x5400)] | ^^^^^ warning: unknown lint: `x5400` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:106:25 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:114:25 | LL | mod inner { #![warn(x5400)] } | ^^^^^ warning: unknown lint: `x5400` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:109:12 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:117:12 | LL | #[warn(x5400)] fn f() { } | ^^^^^ warning: unknown lint: `x5400` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:112:12 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:120:12 | LL | #[warn(x5400)] struct S; | ^^^^^ warning: unknown lint: `x5400` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:115:12 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:123:12 | LL | #[warn(x5400)] type T = S; | ^^^^^ warning: unknown lint: `x5400` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:118:12 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:126:12 | LL | #[warn(x5400)] impl S { } | ^^^^^ warning: unknown lint: `x5300` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:122:9 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:130:9 | LL | #[allow(x5300)] | ^^^^^ warning: unknown lint: `x5300` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:125:26 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:133:26 | LL | mod inner { #![allow(x5300)] } | ^^^^^ warning: unknown lint: `x5300` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:128:13 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:136:13 | LL | #[allow(x5300)] fn f() { } | ^^^^^ warning: unknown lint: `x5300` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:131:13 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:139:13 | LL | #[allow(x5300)] struct S; | ^^^^^ warning: unknown lint: `x5300` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:134:13 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:142:13 | LL | #[allow(x5300)] type T = S; | ^^^^^ warning: unknown lint: `x5300` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:137:13 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:145:13 | LL | #[allow(x5300)] impl S { } | ^^^^^ warning: unknown lint: `x5200` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:141:10 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:149:10 | LL | #[forbid(x5200)] | ^^^^^ warning: unknown lint: `x5200` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:144:27 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:152:27 | LL | mod inner { #![forbid(x5200)] } | ^^^^^ warning: unknown lint: `x5200` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:147:14 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:155:14 | LL | #[forbid(x5200)] fn f() { } | ^^^^^ warning: unknown lint: `x5200` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:150:14 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:158:14 | LL | #[forbid(x5200)] struct S; | ^^^^^ warning: unknown lint: `x5200` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:153:14 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:161:14 | LL | #[forbid(x5200)] type T = S; | ^^^^^ warning: unknown lint: `x5200` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:156:14 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:164:14 | LL | #[forbid(x5200)] impl S { } | ^^^^^ warning: unknown lint: `x5100` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:160:8 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:168:8 | LL | #[deny(x5100)] | ^^^^^ warning: unknown lint: `x5100` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:163:25 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:171:25 | LL | mod inner { #![deny(x5100)] } | ^^^^^ warning: unknown lint: `x5100` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:166:12 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:174:12 | LL | #[deny(x5100)] fn f() { } | ^^^^^ warning: unknown lint: `x5100` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:169:12 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:177:12 | LL | #[deny(x5100)] struct S; | ^^^^^ warning: unknown lint: `x5100` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:172:12 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:180:12 | LL | #[deny(x5100)] type T = S; | ^^^^^ warning: unknown lint: `x5100` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:175:12 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:183:12 | LL | #[deny(x5100)] impl S { } | ^^^^^ warning: `#[macro_export]` only has an effect on macro definitions - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:204:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:216:1 | LL | #[macro_export] | ^^^^^^^^^^^^^^^ @@ -199,19 +199,19 @@ LL | #![warn(unused_attributes, unknown_lints)] | ^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:439:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:483:1 | LL | #[reexport_test_harness_main = "2900"] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:487:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:535:1 | LL | #[no_std] | ^^^^^^^^^ warning: attribute should be applied to an `extern` block with non-Rust ABI - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:620:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:685:1 | LL | #[link()] | ^^^^^^^^^ @@ -226,76 +226,64 @@ LL | | } | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! -warning: `#[must_use]` has no effect when applied to modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:671:1 - | -LL | #[must_use] - | ^^^^^^^^^^^ - warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:688:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:761:1 | LL | #[windows_subsystem = "windows"] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:709:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:782:1 | LL | #[crate_name = "0900"] | ^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:728:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:801:1 | LL | #[crate_type = "0800"] | ^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:747:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:820:1 | LL | #[feature(x0600)] | ^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:767:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:840:1 | LL | #[no_main] | ^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:786:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:859:1 | LL | #[no_builtins] | ^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:805:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:878:1 | LL | #[recursion_limit="0200"] | ^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:824:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:897:1 | LL | #[type_length_limit="0100"] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: attribute should be applied to an `extern` block with non-Rust ABI - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:68:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:72:1 | LL | #![link()] | ^^^^^^^^^^ not an `extern` block | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! -warning: `#[must_use]` has no effect when applied to modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:78:1 - | -LL | #![must_use] - | ^^^^^^^^^^^^ - warning: the feature `rust1` has been stable since 1.0.0 and no longer requires an attribute to enable - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:92:12 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:100:12 | LL | #![feature(rust1)] | ^^^^^ @@ -303,97 +291,97 @@ LL | #![feature(rust1)] = note: `#[warn(stable_features)]` on by default warning: `#[macro_export]` only has an effect on macro definitions - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:207:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:219:17 | LL | mod inner { #![macro_export] } | ^^^^^^^^^^^^^^^^ warning: `#[macro_export]` only has an effect on macro definitions - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:210:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:222:5 | LL | #[macro_export] fn f() { } | ^^^^^^^^^^^^^^^ warning: `#[macro_export]` only has an effect on macro definitions - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:213:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:225:5 | LL | #[macro_export] struct S; | ^^^^^^^^^^^^^^^ warning: `#[macro_export]` only has an effect on macro definitions - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:216:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:228:5 | LL | #[macro_export] type T = S; | ^^^^^^^^^^^^^^^ warning: `#[macro_export]` only has an effect on macro definitions - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:219:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:231:5 | LL | #[macro_export] impl S { } | ^^^^^^^^^^^^^^^ warning: crate-level attribute should be in the root module - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:442:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:486:17 | LL | mod inner { #![reexport_test_harness_main="2900"] } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:445:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:489:5 | LL | #[reexport_test_harness_main = "2900"] fn f() { } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:448:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:492:5 | LL | #[reexport_test_harness_main = "2900"] struct S; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:451:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:495:5 | LL | #[reexport_test_harness_main = "2900"] type T = S; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:454:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:498:5 | LL | #[reexport_test_harness_main = "2900"] impl S { } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be in the root module - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:490:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:538:17 | LL | mod inner { #![no_std] } | ^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:493:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:541:5 | LL | #[no_std] fn f() { } | ^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:496:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:544:5 | LL | #[no_std] struct S; | ^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:499:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:547:5 | LL | #[no_std] type T = S; | ^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:502:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:550:5 | LL | #[no_std] impl S { } | ^^^^^^^^^ warning: attribute should be applied to an `extern` block with non-Rust ABI - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:626:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:691:17 | LL | mod inner { #![link()] } | ------------^^^^^^^^^^-- not an `extern` block @@ -401,7 +389,7 @@ LL | mod inner { #![link()] } = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! warning: attribute should be applied to an `extern` block with non-Rust ABI - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:631:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:696:5 | LL | #[link()] fn f() { } | ^^^^^^^^^ ---------- not an `extern` block @@ -409,7 +397,7 @@ LL | #[link()] fn f() { } = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! warning: attribute should be applied to an `extern` block with non-Rust ABI - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:636:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:701:5 | LL | #[link()] struct S; | ^^^^^^^^^ --------- not an `extern` block @@ -417,7 +405,7 @@ LL | #[link()] struct S; = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! warning: attribute should be applied to an `extern` block with non-Rust ABI - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:641:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:706:5 | LL | #[link()] type T = S; | ^^^^^^^^^ ----------- not an `extern` block @@ -425,7 +413,7 @@ LL | #[link()] type T = S; = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! warning: attribute should be applied to an `extern` block with non-Rust ABI - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:646:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:711:5 | LL | #[link()] impl S { } | ^^^^^^^^^ ---------- not an `extern` block @@ -433,309 +421,291 @@ LL | #[link()] impl S { } = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! warning: attribute should be applied to an `extern` block with non-Rust ABI - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:651:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:716:5 | LL | #[link()] extern "Rust" {} | ^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! -warning: `#[must_use]` has no effect when applied to modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:674:17 - | -LL | mod inner { #![must_use] } - | ^^^^^^^^^^^^ - -warning: `#[must_use]` has no effect when applied to type aliases - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:681:5 - | -LL | #[must_use] type T = S; - | ^^^^^^^^^^^ - -warning: `#[must_use]` has no effect when applied to inherent impl blocks - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:684:5 - | -LL | #[must_use] impl S { } - | ^^^^^^^^^^^ - warning: crate-level attribute should be in the root module - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:691:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:764:17 | LL | mod inner { #![windows_subsystem="windows"] } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:694:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:767:5 | LL | #[windows_subsystem = "windows"] fn f() { } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:697:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:770:5 | LL | #[windows_subsystem = "windows"] struct S; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:700:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:773:5 | LL | #[windows_subsystem = "windows"] type T = S; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:703:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:776:5 | LL | #[windows_subsystem = "windows"] impl S { } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be in the root module - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:712:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:785:17 | LL | mod inner { #![crate_name="0900"] } | ^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:715:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:788:5 | LL | #[crate_name = "0900"] fn f() { } | ^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:718:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:791:5 | LL | #[crate_name = "0900"] struct S; | ^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:721:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:794:5 | LL | #[crate_name = "0900"] type T = S; | ^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:724:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:797:5 | LL | #[crate_name = "0900"] impl S { } | ^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be in the root module - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:731:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:804:17 | LL | mod inner { #![crate_type="0800"] } | ^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:734:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:807:5 | LL | #[crate_type = "0800"] fn f() { } | ^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:737:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:810:5 | LL | #[crate_type = "0800"] struct S; | ^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:740:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:813:5 | LL | #[crate_type = "0800"] type T = S; | ^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:743:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:816:5 | LL | #[crate_type = "0800"] impl S { } | ^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be in the root module - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:750:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:823:17 | LL | mod inner { #![feature(x0600)] } | ^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:753:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:826:5 | LL | #[feature(x0600)] fn f() { } | ^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:756:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:829:5 | LL | #[feature(x0600)] struct S; | ^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:759:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:832:5 | LL | #[feature(x0600)] type T = S; | ^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:762:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:835:5 | LL | #[feature(x0600)] impl S { } | ^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be in the root module - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:770:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:843:17 | LL | mod inner { #![no_main] } | ^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:773:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:846:5 | LL | #[no_main] fn f() { } | ^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:776:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:849:5 | LL | #[no_main] struct S; | ^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:779:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:852:5 | LL | #[no_main] type T = S; | ^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:782:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:855:5 | LL | #[no_main] impl S { } | ^^^^^^^^^^ warning: crate-level attribute should be in the root module - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:789:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:862:17 | LL | mod inner { #![no_builtins] } | ^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:792:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:865:5 | LL | #[no_builtins] fn f() { } | ^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:795:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:868:5 | LL | #[no_builtins] struct S; | ^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:798:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:871:5 | LL | #[no_builtins] type T = S; | ^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:801:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:874:5 | LL | #[no_builtins] impl S { } | ^^^^^^^^^^^^^^ warning: crate-level attribute should be in the root module - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:808:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:881:17 | LL | mod inner { #![recursion_limit="0200"] } | ^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:811:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:884:5 | LL | #[recursion_limit="0200"] fn f() { } | ^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:814:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:887:5 | LL | #[recursion_limit="0200"] struct S; | ^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:817:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:890:5 | LL | #[recursion_limit="0200"] type T = S; | ^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:820:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:893:5 | LL | #[recursion_limit="0200"] impl S { } | ^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be in the root module - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:827:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:900:17 | LL | mod inner { #![type_length_limit="0100"] } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:830:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:903:5 | LL | #[type_length_limit="0100"] fn f() { } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:833:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:906:5 | LL | #[type_length_limit="0100"] struct S; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:836:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:909:5 | LL | #[type_length_limit="0100"] type T = S; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:839:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:912:5 | LL | #[type_length_limit="0100"] impl S { } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: `#[macro_use]` attribute cannot be used on functions - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:183:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:191:5 | LL | #[macro_use] fn f() { } | ^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[macro_use]` can be applied to modules, extern crates, crates + = help: `#[macro_use]` can be applied to modules, extern crates, and crates warning: `#[macro_use]` attribute cannot be used on structs - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:188:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:197:5 | LL | #[macro_use] struct S; | ^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[macro_use]` can be applied to modules, extern crates, crates + = help: `#[macro_use]` can be applied to modules, extern crates, and crates warning: `#[macro_use]` attribute cannot be used on type aliases - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:193:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:203:5 | LL | #[macro_use] type T = S; | ^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[macro_use]` can be applied to modules, extern crates, crates + = help: `#[macro_use]` can be applied to modules, extern crates, and crates warning: `#[macro_use]` attribute cannot be used on inherent impl blocks - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:198:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:209:5 | LL | #[macro_use] impl S { } | ^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[macro_use]` can be applied to modules, extern crates, crates + = help: `#[macro_use]` can be applied to modules, extern crates, and crates warning: `#[path]` attribute cannot be used on functions - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:259:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:271:5 | LL | #[path = "3800"] fn f() { } | ^^^^^^^^^^^^^^^^ @@ -744,7 +714,7 @@ LL | #[path = "3800"] fn f() { } = help: `#[path]` can only be applied to modules warning: `#[path]` attribute cannot be used on structs - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:264:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:277:5 | LL | #[path = "3800"] struct S; | ^^^^^^^^^^^^^^^^ @@ -753,7 +723,7 @@ LL | #[path = "3800"] struct S; = help: `#[path]` can only be applied to modules warning: `#[path]` attribute cannot be used on type aliases - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:269:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:283:5 | LL | #[path = "3800"] type T = S; | ^^^^^^^^^^^^^^^^ @@ -762,7 +732,7 @@ LL | #[path = "3800"] type T = S; = help: `#[path]` can only be applied to modules warning: `#[path]` attribute cannot be used on inherent impl blocks - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:274:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:289:5 | LL | #[path = "3800"] impl S { } | ^^^^^^^^^^^^^^^^ @@ -771,7 +741,7 @@ LL | #[path = "3800"] impl S { } = help: `#[path]` can only be applied to modules warning: `#[automatically_derived]` attribute cannot be used on modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:280:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:296:1 | LL | #[automatically_derived] | ^^^^^^^^^^^^^^^^^^^^^^^^ @@ -780,7 +750,7 @@ LL | #[automatically_derived] = help: `#[automatically_derived]` can only be applied to trait impl blocks warning: `#[automatically_derived]` attribute cannot be used on modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:285:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:302:17 | LL | mod inner { #![automatically_derived] } | ^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -789,7 +759,7 @@ LL | mod inner { #![automatically_derived] } = help: `#[automatically_derived]` can only be applied to trait impl blocks warning: `#[automatically_derived]` attribute cannot be used on functions - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:290:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:308:5 | LL | #[automatically_derived] fn f() { } | ^^^^^^^^^^^^^^^^^^^^^^^^ @@ -798,7 +768,7 @@ LL | #[automatically_derived] fn f() { } = help: `#[automatically_derived]` can only be applied to trait impl blocks warning: `#[automatically_derived]` attribute cannot be used on structs - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:295:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:314:5 | LL | #[automatically_derived] struct S; | ^^^^^^^^^^^^^^^^^^^^^^^^ @@ -807,7 +777,7 @@ LL | #[automatically_derived] struct S; = help: `#[automatically_derived]` can only be applied to trait impl blocks warning: `#[automatically_derived]` attribute cannot be used on type aliases - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:300:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:320:5 | LL | #[automatically_derived] type T = S; | ^^^^^^^^^^^^^^^^^^^^^^^^ @@ -816,7 +786,7 @@ LL | #[automatically_derived] type T = S; = help: `#[automatically_derived]` can only be applied to trait impl blocks warning: `#[automatically_derived]` attribute cannot be used on traits - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:305:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:326:5 | LL | #[automatically_derived] trait W { } | ^^^^^^^^^^^^^^^^^^^^^^^^ @@ -825,7 +795,7 @@ LL | #[automatically_derived] trait W { } = help: `#[automatically_derived]` can only be applied to trait impl blocks warning: `#[automatically_derived]` attribute cannot be used on inherent impl blocks - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:310:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:332:5 | LL | #[automatically_derived] impl S { } | ^^^^^^^^^^^^^^^^^^^^^^^^ @@ -834,70 +804,70 @@ LL | #[automatically_derived] impl S { } = help: `#[automatically_derived]` can only be applied to trait impl blocks warning: `#[no_mangle]` attribute cannot be used on modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:318:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:341:1 | LL | #[no_mangle] | ^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[no_mangle]` can be applied to functions, statics + = help: `#[no_mangle]` can be applied to functions and statics warning: `#[no_mangle]` attribute cannot be used on modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:323:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:347:17 | LL | mod inner { #![no_mangle] } | ^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[no_mangle]` can be applied to functions, statics + = help: `#[no_mangle]` can be applied to functions and statics warning: `#[no_mangle]` attribute cannot be used on structs - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:330:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:355:5 | LL | #[no_mangle] struct S; | ^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[no_mangle]` can be applied to functions, statics + = help: `#[no_mangle]` can be applied to functions and statics warning: `#[no_mangle]` attribute cannot be used on type aliases - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:335:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:361:5 | LL | #[no_mangle] type T = S; | ^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[no_mangle]` can be applied to functions, statics + = help: `#[no_mangle]` can be applied to functions and statics warning: `#[no_mangle]` attribute cannot be used on inherent impl blocks - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:340:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:367:5 | LL | #[no_mangle] impl S { } | ^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[no_mangle]` can be applied to functions, statics + = help: `#[no_mangle]` can be applied to functions and statics warning: `#[no_mangle]` attribute cannot be used on required trait methods - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:346:9 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:374:9 | LL | #[no_mangle] fn foo(); | ^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[no_mangle]` can be applied to functions, statics, inherent methods, trait methods in impl blocks + = help: `#[no_mangle]` can be applied to functions, statics, inherent methods, and trait methods in impl blocks warning: `#[no_mangle]` attribute cannot be used on provided trait methods - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:351:9 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:380:9 | LL | #[no_mangle] fn bar() {} | ^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[no_mangle]` can be applied to functions, statics, inherent methods, trait methods in impl blocks + = help: `#[no_mangle]` can be applied to functions, statics, inherent methods, and trait methods in impl blocks warning: `#[should_panic]` attribute cannot be used on modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:358:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:388:1 | LL | #[should_panic] | ^^^^^^^^^^^^^^^ @@ -906,7 +876,7 @@ LL | #[should_panic] = help: `#[should_panic]` can only be applied to functions warning: `#[should_panic]` attribute cannot be used on modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:363:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:394:17 | LL | mod inner { #![should_panic] } | ^^^^^^^^^^^^^^^^ @@ -915,7 +885,7 @@ LL | mod inner { #![should_panic] } = help: `#[should_panic]` can only be applied to functions warning: `#[should_panic]` attribute cannot be used on structs - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:370:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:402:5 | LL | #[should_panic] struct S; | ^^^^^^^^^^^^^^^ @@ -924,7 +894,7 @@ LL | #[should_panic] struct S; = help: `#[should_panic]` can only be applied to functions warning: `#[should_panic]` attribute cannot be used on type aliases - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:375:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:408:5 | LL | #[should_panic] type T = S; | ^^^^^^^^^^^^^^^ @@ -933,7 +903,7 @@ LL | #[should_panic] type T = S; = help: `#[should_panic]` can only be applied to functions warning: `#[should_panic]` attribute cannot be used on inherent impl blocks - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:380:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:414:5 | LL | #[should_panic] impl S { } | ^^^^^^^^^^^^^^^ @@ -942,7 +912,7 @@ LL | #[should_panic] impl S { } = help: `#[should_panic]` can only be applied to functions warning: `#[ignore]` attribute cannot be used on modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:386:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:421:1 | LL | #[ignore] | ^^^^^^^^^ @@ -951,7 +921,7 @@ LL | #[ignore] = help: `#[ignore]` can only be applied to functions warning: `#[ignore]` attribute cannot be used on modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:391:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:427:17 | LL | mod inner { #![ignore] } | ^^^^^^^^^^ @@ -960,7 +930,7 @@ LL | mod inner { #![ignore] } = help: `#[ignore]` can only be applied to functions warning: `#[ignore]` attribute cannot be used on structs - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:398:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:435:5 | LL | #[ignore] struct S; | ^^^^^^^^^ @@ -969,7 +939,7 @@ LL | #[ignore] struct S; = help: `#[ignore]` can only be applied to functions warning: `#[ignore]` attribute cannot be used on type aliases - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:403:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:441:5 | LL | #[ignore] type T = S; | ^^^^^^^^^ @@ -978,7 +948,7 @@ LL | #[ignore] type T = S; = help: `#[ignore]` can only be applied to functions warning: `#[ignore]` attribute cannot be used on inherent impl blocks - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:408:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:447:5 | LL | #[ignore] impl S { } | ^^^^^^^^^ @@ -987,79 +957,79 @@ LL | #[ignore] impl S { } = help: `#[ignore]` can only be applied to functions warning: `#[no_implicit_prelude]` attribute cannot be used on functions - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:418:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:458:5 | LL | #[no_implicit_prelude] fn f() { } | ^^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[no_implicit_prelude]` can be applied to modules, crates + = help: `#[no_implicit_prelude]` can be applied to modules and crates warning: `#[no_implicit_prelude]` attribute cannot be used on structs - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:423:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:464:5 | LL | #[no_implicit_prelude] struct S; | ^^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[no_implicit_prelude]` can be applied to modules, crates + = help: `#[no_implicit_prelude]` can be applied to modules and crates warning: `#[no_implicit_prelude]` attribute cannot be used on type aliases - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:428:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:470:5 | LL | #[no_implicit_prelude] type T = S; | ^^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[no_implicit_prelude]` can be applied to modules, crates + = help: `#[no_implicit_prelude]` can be applied to modules and crates warning: `#[no_implicit_prelude]` attribute cannot be used on inherent impl blocks - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:433:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:476:5 | LL | #[no_implicit_prelude] impl S { } | ^^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[no_implicit_prelude]` can be applied to modules, crates + = help: `#[no_implicit_prelude]` can be applied to modules and crates warning: `#[macro_escape]` attribute cannot be used on functions - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:466:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:510:5 | LL | #[macro_escape] fn f() { } | ^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[macro_escape]` can be applied to modules, extern crates, crates + = help: `#[macro_escape]` can be applied to modules, extern crates, and crates warning: `#[macro_escape]` attribute cannot be used on structs - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:471:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:516:5 | LL | #[macro_escape] struct S; | ^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[macro_escape]` can be applied to modules, extern crates, crates + = help: `#[macro_escape]` can be applied to modules, extern crates, and crates warning: `#[macro_escape]` attribute cannot be used on type aliases - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:476:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:522:5 | LL | #[macro_escape] type T = S; | ^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[macro_escape]` can be applied to modules, extern crates, crates + = help: `#[macro_escape]` can be applied to modules, extern crates, and crates warning: `#[macro_escape]` attribute cannot be used on inherent impl blocks - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:481:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:528:5 | LL | #[macro_escape] impl S { } | ^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[macro_escape]` can be applied to modules, extern crates, crates + = help: `#[macro_escape]` can be applied to modules, extern crates, and crates warning: `#[cold]` attribute cannot be used on modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:523:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:571:1 | LL | #[cold] | ^^^^^^^ @@ -1068,7 +1038,7 @@ LL | #[cold] = help: `#[cold]` can only be applied to functions warning: `#[cold]` attribute cannot be used on modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:529:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:578:17 | LL | mod inner { #![cold] } | ^^^^^^^^ @@ -1077,7 +1047,7 @@ LL | mod inner { #![cold] } = help: `#[cold]` can only be applied to functions warning: `#[cold]` attribute cannot be used on structs - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:536:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:586:5 | LL | #[cold] struct S; | ^^^^^^^ @@ -1086,7 +1056,7 @@ LL | #[cold] struct S; = help: `#[cold]` can only be applied to functions warning: `#[cold]` attribute cannot be used on type aliases - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:541:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:592:5 | LL | #[cold] type T = S; | ^^^^^^^ @@ -1095,7 +1065,7 @@ LL | #[cold] type T = S; = help: `#[cold]` can only be applied to functions warning: `#[cold]` attribute cannot be used on inherent impl blocks - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:546:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:598:5 | LL | #[cold] impl S { } | ^^^^^^^ @@ -1104,112 +1074,148 @@ LL | #[cold] impl S { } = help: `#[cold]` can only be applied to functions warning: `#[link_name]` attribute cannot be used on modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:552:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:605:1 | LL | #[link_name = "1900"] | ^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_name]` can be applied to foreign functions, foreign statics + = help: `#[link_name]` can be applied to foreign functions and foreign statics warning: `#[link_name]` attribute cannot be used on foreign modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:557:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:611:5 | LL | #[link_name = "1900"] | ^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_name]` can be applied to foreign functions, foreign statics + = help: `#[link_name]` can be applied to foreign functions and foreign statics warning: `#[link_name]` attribute cannot be used on modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:563:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:618:17 | LL | mod inner { #![link_name="1900"] } | ^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_name]` can be applied to foreign functions, foreign statics + = help: `#[link_name]` can be applied to foreign functions and foreign statics warning: `#[link_name]` attribute cannot be used on functions - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:568:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:624:5 | LL | #[link_name = "1900"] fn f() { } | ^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_name]` can be applied to foreign functions, foreign statics + = help: `#[link_name]` can be applied to foreign functions and foreign statics warning: `#[link_name]` attribute cannot be used on structs - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:573:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:630:5 | LL | #[link_name = "1900"] struct S; | ^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_name]` can be applied to foreign functions, foreign statics + = help: `#[link_name]` can be applied to foreign functions and foreign statics warning: `#[link_name]` attribute cannot be used on type aliases - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:578:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:636:5 | LL | #[link_name = "1900"] type T = S; | ^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_name]` can be applied to foreign functions, foreign statics + = help: `#[link_name]` can be applied to foreign functions and foreign statics warning: `#[link_name]` attribute cannot be used on inherent impl blocks - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:583:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:642:5 | LL | #[link_name = "1900"] impl S { } | ^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_name]` can be applied to foreign functions, foreign statics + = help: `#[link_name]` can be applied to foreign functions and foreign statics warning: `#[link_section]` attribute cannot be used on modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:589:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:649:1 | LL | #[link_section = "1800"] | ^^^^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_section]` can be applied to statics, functions + = help: `#[link_section]` can be applied to statics and functions warning: `#[link_section]` attribute cannot be used on modules - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:594:17 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:655:17 | LL | mod inner { #![link_section="1800"] } | ^^^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_section]` can be applied to statics, functions + = help: `#[link_section]` can be applied to statics and functions warning: `#[link_section]` attribute cannot be used on structs - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:601:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:663:5 | LL | #[link_section = "1800"] struct S; | ^^^^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_section]` can be applied to statics, functions + = help: `#[link_section]` can be applied to statics and functions warning: `#[link_section]` attribute cannot be used on type aliases - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:606:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:669:5 | LL | #[link_section = "1800"] type T = S; | ^^^^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_section]` can be applied to statics, functions + = help: `#[link_section]` can be applied to statics and functions warning: `#[link_section]` attribute cannot be used on inherent impl blocks - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:611:5 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:675:5 | LL | #[link_section = "1800"] impl S { } | ^^^^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_section]` can be applied to statics, functions + = help: `#[link_section]` can be applied to statics and functions + +warning: `#[must_use]` attribute cannot be used on modules + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:736:1 + | +LL | #[must_use] + | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits + +warning: `#[must_use]` attribute cannot be used on modules + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:741:17 + | +LL | mod inner { #![must_use] } + | ^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits + +warning: `#[must_use]` attribute cannot be used on type aliases + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:750:5 + | +LL | #[must_use] type T = S; + | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits + +warning: `#[must_use]` attribute cannot be used on inherent impl blocks + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:755:5 + | +LL | #[must_use] impl S { } + | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits warning: `#[should_panic]` attribute cannot be used on crates --> $DIR/issue-43106-gating-of-builtin-attrs.rs:50:1 @@ -1221,7 +1227,7 @@ LL | #![should_panic] = help: `#[should_panic]` can only be applied to functions warning: `#[ignore]` attribute cannot be used on crates - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:53:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:54:1 | LL | #![ignore] | ^^^^^^^^^^ @@ -1230,7 +1236,7 @@ LL | #![ignore] = help: `#[ignore]` can only be applied to functions warning: `#[proc_macro_derive]` attribute cannot be used on crates - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:61:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:63:1 | LL | #![proc_macro_derive(Test)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -1239,7 +1245,7 @@ LL | #![proc_macro_derive(Test)] = help: `#[proc_macro_derive]` can only be applied to functions warning: `#[cold]` attribute cannot be used on crates - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:65:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:68:1 | LL | #![cold] | ^^^^^^^^ @@ -1248,22 +1254,31 @@ LL | #![cold] = help: `#[cold]` can only be applied to functions warning: `#[link_name]` attribute cannot be used on crates - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:70:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:74:1 | LL | #![link_name = "1900"] | ^^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_name]` can be applied to foreign functions, foreign statics + = help: `#[link_name]` can be applied to foreign functions and foreign statics warning: `#[link_section]` attribute cannot be used on crates - --> $DIR/issue-43106-gating-of-builtin-attrs.rs:74:1 + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:79:1 | LL | #![link_section = "1800"] | ^^^^^^^^^^^^^^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[link_section]` can be applied to statics, functions + = help: `#[link_section]` can be applied to statics and functions + +warning: `#[must_use]` attribute cannot be used on crates + --> $DIR/issue-43106-gating-of-builtin-attrs.rs:84:1 + | +LL | #![must_use] + | ^^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits warning: 173 warnings emitted diff --git a/tests/ui/fmt/non-source-literals.stderr b/tests/ui/fmt/non-source-literals.stderr index 5f8a6200dab..5f042e1e631 100644 --- a/tests/ui/fmt/non-source-literals.stderr +++ b/tests/ui/fmt/non-source-literals.stderr @@ -4,7 +4,11 @@ error[E0277]: `NonDisplay` doesn't implement `std::fmt::Display` LL | let _ = format!(concat!("{", "}"), NonDisplay); | ^^^^^^^^^^ `NonDisplay` cannot be formatted with the default formatter | - = help: the trait `std::fmt::Display` is not implemented for `NonDisplay` +help: the trait `std::fmt::Display` is not implemented for `NonDisplay` + --> $DIR/non-source-literals.rs:5:1 + | +LL | pub struct NonDisplay; + | ^^^^^^^^^^^^^^^^^^^^^ = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead = note: this error originates in the macro `$crate::__export::format_args` which comes from the expansion of the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info) @@ -14,7 +18,11 @@ error[E0277]: `NonDisplay` doesn't implement `std::fmt::Display` LL | let _ = format!(concat!("{", "0", "}"), NonDisplay); | ^^^^^^^^^^ `NonDisplay` cannot be formatted with the default formatter | - = help: the trait `std::fmt::Display` is not implemented for `NonDisplay` +help: the trait `std::fmt::Display` is not implemented for `NonDisplay` + --> $DIR/non-source-literals.rs:5:1 + | +LL | pub struct NonDisplay; + | ^^^^^^^^^^^^^^^^^^^^^ = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead = note: this error originates in the macro `$crate::__export::format_args` which comes from the expansion of the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info) diff --git a/tests/ui/fn/error-recovery-mismatch.stderr b/tests/ui/fn/error-recovery-mismatch.stderr index 10dab3052be..b4293500b3b 100644 --- a/tests/ui/fn/error-recovery-mismatch.stderr +++ b/tests/ui/fn/error-recovery-mismatch.stderr @@ -27,7 +27,7 @@ LL | fn fold<T>(&self, _: T, &self._) {} | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686> - = note: `#[warn(anonymous_parameters)]` on by default + = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default error[E0121]: the placeholder `_` is not allowed within types on item signatures for methods --> $DIR/error-recovery-mismatch.rs:11:35 diff --git a/tests/ui/fn/issue-39259.stderr b/tests/ui/fn/issue-39259.stderr index 90e305ca17a..fc5c8282503 100644 --- a/tests/ui/fn/issue-39259.stderr +++ b/tests/ui/fn/issue-39259.stderr @@ -24,7 +24,11 @@ error[E0277]: expected a `FnMut(u32)` closure, found `S` LL | impl Fn(u32) -> u32 for S { | ^ expected an `FnMut(u32)` closure, found `S` | - = help: the trait `FnMut(u32)` is not implemented for `S` +help: the trait `FnMut(u32)` is not implemented for `S` + --> $DIR/issue-39259.rs:4:1 + | +LL | struct S; + | ^^^^^^^^ note: required by a bound in `Fn` --> $SRC_DIR/core/src/ops/function.rs:LL:COL diff --git a/tests/ui/for/for-loop-bogosity.stderr b/tests/ui/for/for-loop-bogosity.stderr index 194a2fa08ce..f4d99671f8e 100644 --- a/tests/ui/for/for-loop-bogosity.stderr +++ b/tests/ui/for/for-loop-bogosity.stderr @@ -4,7 +4,11 @@ error[E0277]: `MyStruct` is not an iterator LL | for x in bogus { | ^^^^^ `MyStruct` is not an iterator | - = help: the trait `Iterator` is not implemented for `MyStruct` +help: the trait `Iterator` is not implemented for `MyStruct` + --> $DIR/for-loop-bogosity.rs:1:1 + | +LL | struct MyStruct { + | ^^^^^^^^^^^^^^^ = note: required for `MyStruct` to implement `IntoIterator` error: aborting due to 1 previous error diff --git a/tests/ui/frontmatter/auxiliary/makro.rs b/tests/ui/frontmatter/auxiliary/makro.rs index 78e7417afb5..70707b27bff 100644 --- a/tests/ui/frontmatter/auxiliary/makro.rs +++ b/tests/ui/frontmatter/auxiliary/makro.rs @@ -3,6 +3,6 @@ use proc_macro::TokenStream; #[proc_macro] pub fn check(_: TokenStream) -> TokenStream { - assert!("---\n---".parse::<TokenStream>().unwrap().is_empty()); + assert_eq!(6, "---\n---".parse::<TokenStream>().unwrap().into_iter().count()); Default::default() } diff --git a/tests/ui/frontmatter/hyphen-in-infostring-leading.rs b/tests/ui/frontmatter/hyphen-in-infostring-leading.rs new file mode 100644 index 00000000000..8652fd76ad5 --- /dev/null +++ b/tests/ui/frontmatter/hyphen-in-infostring-leading.rs @@ -0,0 +1,9 @@ +--- -toml +//~^ ERROR: invalid infostring for frontmatter +--- + +// infostrings cannot have leading hyphens + +#![feature(frontmatter)] + +fn main() {} diff --git a/tests/ui/frontmatter/hyphen-in-infostring-leading.stderr b/tests/ui/frontmatter/hyphen-in-infostring-leading.stderr new file mode 100644 index 00000000000..167b537d62b --- /dev/null +++ b/tests/ui/frontmatter/hyphen-in-infostring-leading.stderr @@ -0,0 +1,10 @@ +error: invalid infostring for frontmatter + --> $DIR/hyphen-in-infostring-leading.rs:1:4 + | +LL | --- -toml + | ^^^^^^ + | + = note: frontmatter infostrings must be a single identifier immediately following the opening + +error: aborting due to 1 previous error + diff --git a/tests/ui/frontmatter/hyphen-in-infostring-non-leading.rs b/tests/ui/frontmatter/hyphen-in-infostring-non-leading.rs new file mode 100644 index 00000000000..35e7b96ff87 --- /dev/null +++ b/tests/ui/frontmatter/hyphen-in-infostring-non-leading.rs @@ -0,0 +1,9 @@ +--- Cargo-toml +--- + +// infostrings can contain hyphens as long as a hyphen isn't the first character. +//@ check-pass + +#![feature(frontmatter)] + +fn main() {} diff --git a/tests/ui/frontmatter/proc-macro-observer.rs b/tests/ui/frontmatter/proc-macro-observer.rs index bafbe912032..b1cc1460933 100644 --- a/tests/ui/frontmatter/proc-macro-observer.rs +++ b/tests/ui/frontmatter/proc-macro-observer.rs @@ -2,11 +2,10 @@ //@ proc-macro: makro.rs //@ edition: 2021 -#![feature(frontmatter)] - makro::check!(); -// checks that a proc-macro cannot observe frontmatter tokens. +// checks that a proc-macro doesn't know or parse frontmatters at all and instead treats +// it as normal Rust code. // see auxiliary/makro.rs for how it is tested. fn main() {} diff --git a/tests/ui/generic-associated-types/ambig-hr-projection-issue-93340.next.stderr b/tests/ui/generic-associated-types/ambig-hr-projection-issue-93340.next.stderr index d624fb1e42b..d6294efbd28 100644 --- a/tests/ui/generic-associated-types/ambig-hr-projection-issue-93340.next.stderr +++ b/tests/ui/generic-associated-types/ambig-hr-projection-issue-93340.next.stderr @@ -1,30 +1,14 @@ -error[E0283]: type annotations needed - --> $DIR/ambig-hr-projection-issue-93340.rs:17:5 +error[E0282]: type annotations needed + --> $DIR/ambig-hr-projection-issue-93340.rs:16:5 | LL | cmp_eq | ^^^^^^ cannot infer type of the type parameter `A` declared on the function `cmp_eq` | - = note: cannot satisfy `_: Scalar` -note: required by a bound in `cmp_eq` - --> $DIR/ambig-hr-projection-issue-93340.rs:10:22 - | -LL | fn cmp_eq<'a, 'b, A: Scalar, B: Scalar, O: Scalar>(a: A::RefType<'a>, b: B::RefType<'b>) -> O { - | ^^^^^^ required by this bound in `cmp_eq` help: consider specifying the generic arguments | LL | cmp_eq::<A, B, O> | +++++++++++ -error[E0277]: expected a `Fn(<A as Scalar>::RefType<'_>, <B as Scalar>::RefType<'_>)` closure, found `for<'a, 'b> fn(<O as Scalar>::RefType<'a>, <_ as Scalar>::RefType<'b>) -> O {cmp_eq::<O, _, O>}` - --> $DIR/ambig-hr-projection-issue-93340.rs:14:1 - | -LL | / fn build_expression<A: Scalar, B: Scalar, O: Scalar>( -LL | | ) -> impl Fn(A::RefType<'_>, B::RefType<'_>) -> O { - | |_________________________________________________^ expected an `Fn(<A as Scalar>::RefType<'_>, <B as Scalar>::RefType<'_>)` closure, found `for<'a, 'b> fn(<O as Scalar>::RefType<'a>, <_ as Scalar>::RefType<'b>) -> O {cmp_eq::<O, _, O>}` - | - = help: the trait `for<'a, 'b> Fn(<A as Scalar>::RefType<'a>, <B as Scalar>::RefType<'b>)` is not implemented for fn item `for<'a, 'b> fn(<O as Scalar>::RefType<'a>, <_ as Scalar>::RefType<'b>) -> O {cmp_eq::<O, _, O>}` - -error: aborting due to 2 previous errors +error: aborting due to 1 previous error -Some errors have detailed explanations: E0277, E0283. -For more information about an error, try `rustc --explain E0277`. +For more information about this error, try `rustc --explain E0282`. diff --git a/tests/ui/generic-associated-types/ambig-hr-projection-issue-93340.old.stderr b/tests/ui/generic-associated-types/ambig-hr-projection-issue-93340.old.stderr index 4a293d44e0e..d913b2e91ca 100644 --- a/tests/ui/generic-associated-types/ambig-hr-projection-issue-93340.old.stderr +++ b/tests/ui/generic-associated-types/ambig-hr-projection-issue-93340.old.stderr @@ -1,5 +1,5 @@ error[E0283]: type annotations needed - --> $DIR/ambig-hr-projection-issue-93340.rs:17:5 + --> $DIR/ambig-hr-projection-issue-93340.rs:16:5 | LL | cmp_eq | ^^^^^^ cannot infer type of the type parameter `A` declared on the function `cmp_eq` diff --git a/tests/ui/generic-associated-types/ambig-hr-projection-issue-93340.rs b/tests/ui/generic-associated-types/ambig-hr-projection-issue-93340.rs index 6ba3c4c65d0..acfebad38db 100644 --- a/tests/ui/generic-associated-types/ambig-hr-projection-issue-93340.rs +++ b/tests/ui/generic-associated-types/ambig-hr-projection-issue-93340.rs @@ -13,7 +13,6 @@ fn cmp_eq<'a, 'b, A: Scalar, B: Scalar, O: Scalar>(a: A::RefType<'a>, b: B::RefT fn build_expression<A: Scalar, B: Scalar, O: Scalar>( ) -> impl Fn(A::RefType<'_>, B::RefType<'_>) -> O { - //[next]~^^ ERROR expected a `Fn(<A as Scalar>::RefType<'_>, <B as Scalar>::RefType<'_>)` closure cmp_eq //~^ ERROR type annotations needed } diff --git a/tests/ui/issues/issue-86756.rs b/tests/ui/generics/duplicate-generic-parameter-error-86756.rs index 55a6c144839..acc281cb8c4 100644 --- a/tests/ui/issues/issue-86756.rs +++ b/tests/ui/generics/duplicate-generic-parameter-error-86756.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/86756 //@ edition: 2015 trait Foo<T, T = T> {} //~^ ERROR the name `T` is already used for a generic parameter in this item's generic parameters diff --git a/tests/ui/issues/issue-86756.stderr b/tests/ui/generics/duplicate-generic-parameter-error-86756.stderr index b650b32c2a3..e761d15ff67 100644 --- a/tests/ui/issues/issue-86756.stderr +++ b/tests/ui/generics/duplicate-generic-parameter-error-86756.stderr @@ -1,5 +1,5 @@ error[E0403]: the name `T` is already used for a generic parameter in this item's generic parameters - --> $DIR/issue-86756.rs:2:14 + --> $DIR/duplicate-generic-parameter-error-86756.rs:3:14 | LL | trait Foo<T, T = T> {} | - ^ already used @@ -7,33 +7,33 @@ LL | trait Foo<T, T = T> {} | first use of `T` error[E0412]: cannot find type `dyn` in this scope - --> $DIR/issue-86756.rs:6:10 + --> $DIR/duplicate-generic-parameter-error-86756.rs:7:10 | LL | eq::<dyn, Foo> | ^^^ not found in this scope warning: trait objects without an explicit `dyn` are deprecated - --> $DIR/issue-86756.rs:6:15 + --> $DIR/duplicate-generic-parameter-error-86756.rs:7:15 | LL | eq::<dyn, Foo> | ^^^ | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | eq::<dyn, dyn Foo> | +++ error[E0107]: missing generics for trait `Foo` - --> $DIR/issue-86756.rs:6:15 + --> $DIR/duplicate-generic-parameter-error-86756.rs:7:15 | LL | eq::<dyn, Foo> | ^^^ expected at least 1 generic argument | note: trait defined here, with at least 1 generic parameter: `T` - --> $DIR/issue-86756.rs:2:7 + --> $DIR/duplicate-generic-parameter-error-86756.rs:3:7 | LL | trait Foo<T, T = T> {} | ^^^ - diff --git a/tests/ui/generics/empty-generic-brackets-equiv.stderr b/tests/ui/generics/empty-generic-brackets-equiv.stderr index 151ee4697b4..aef4aa7cbf1 100644 --- a/tests/ui/generics/empty-generic-brackets-equiv.stderr +++ b/tests/ui/generics/empty-generic-brackets-equiv.stderr @@ -4,7 +4,7 @@ warning: trait `T` is never used LL | trait T<> {} | ^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/generics/invalid-type-param-default.stderr b/tests/ui/generics/invalid-type-param-default.stderr index 1c8fdd8ab5c..3bec7542ad0 100644 --- a/tests/ui/generics/invalid-type-param-default.stderr +++ b/tests/ui/generics/invalid-type-param-default.stderr @@ -12,7 +12,7 @@ LL | fn avg<T = i32>(_: T) {} | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887> - = note: `#[deny(invalid_type_param_default)]` on by default + = note: `#[deny(invalid_type_param_default)]` (part of `#[deny(future_incompatible)]`) on by default error: defaults for generic parameters are not allowed here --> $DIR/invalid-type-param-default.rs:12:8 @@ -44,7 +44,7 @@ LL | fn avg<T = i32>(_: T) {} | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887> - = note: `#[deny(invalid_type_param_default)]` on by default + = note: `#[deny(invalid_type_param_default)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: defaults for generic parameters are not allowed here @@ -55,7 +55,7 @@ LL | fn mdn<T = T::Item>(_: T) {} | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887> - = note: `#[deny(invalid_type_param_default)]` on by default + = note: `#[deny(invalid_type_param_default)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: defaults for generic parameters are not allowed here @@ -66,5 +66,5 @@ LL | impl<T = i32> S<T> {} | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887> - = note: `#[deny(invalid_type_param_default)]` on by default + = note: `#[deny(invalid_type_param_default)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/generics/overlapping-errors-span-issue-123861.stderr b/tests/ui/generics/overlapping-errors-span-issue-123861.stderr index 44e8b4a01e7..f9dfb00723e 100644 --- a/tests/ui/generics/overlapping-errors-span-issue-123861.stderr +++ b/tests/ui/generics/overlapping-errors-span-issue-123861.stderr @@ -23,7 +23,7 @@ LL | fn mainIterator<_ = _> {} | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887> - = note: `#[deny(invalid_type_param_default)]` on by default + = note: `#[deny(invalid_type_param_default)]` (part of `#[deny(future_incompatible)]`) on by default error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions --> $DIR/overlapping-errors-span-issue-123861.rs:1:21 @@ -43,5 +43,5 @@ LL | fn mainIterator<_ = _> {} | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887> - = note: `#[deny(invalid_type_param_default)]` on by default + = note: `#[deny(invalid_type_param_default)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/impl-trait/auto-trait-selection-freeze.next.stderr b/tests/ui/impl-trait/auto-trait-selection-freeze.next.stderr index 5caf0eb2fd4..7170efc8638 100644 --- a/tests/ui/impl-trait/auto-trait-selection-freeze.next.stderr +++ b/tests/ui/impl-trait/auto-trait-selection-freeze.next.stderr @@ -1,17 +1,9 @@ -error[E0283]: type annotations needed +error[E0282]: type annotations needed --> $DIR/auto-trait-selection-freeze.rs:19:16 | LL | if false { is_trait(foo()) } else { Default::default() } - | ^^^^^^^^ ----- type must be known at this point - | | - | cannot infer type of the type parameter `T` declared on the function `is_trait` + | ^^^^^^^^ cannot infer type of the type parameter `T` declared on the function `is_trait` | - = note: cannot satisfy `_: Trait<_>` -note: required by a bound in `is_trait` - --> $DIR/auto-trait-selection-freeze.rs:11:16 - | -LL | fn is_trait<T: Trait<U>, U: Default>(_: T) -> U { - | ^^^^^^^^ required by this bound in `is_trait` help: consider specifying the generic arguments | LL | if false { is_trait::<T, U>(foo()) } else { Default::default() } @@ -19,4 +11,4 @@ LL | if false { is_trait::<T, U>(foo()) } else { Default::default() } error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0283`. +For more information about this error, try `rustc --explain E0282`. diff --git a/tests/ui/impl-trait/auto-trait-selection.next.stderr b/tests/ui/impl-trait/auto-trait-selection.next.stderr index d34fdcc4496..0f33aca3019 100644 --- a/tests/ui/impl-trait/auto-trait-selection.next.stderr +++ b/tests/ui/impl-trait/auto-trait-selection.next.stderr @@ -1,17 +1,9 @@ -error[E0283]: type annotations needed +error[E0282]: type annotations needed --> $DIR/auto-trait-selection.rs:15:16 | LL | if false { is_trait(foo()) } else { Default::default() } - | ^^^^^^^^ ----- type must be known at this point - | | - | cannot infer type of the type parameter `T` declared on the function `is_trait` + | ^^^^^^^^ cannot infer type of the type parameter `T` declared on the function `is_trait` | - = note: cannot satisfy `_: Trait<_>` -note: required by a bound in `is_trait` - --> $DIR/auto-trait-selection.rs:7:16 - | -LL | fn is_trait<T: Trait<U>, U: Default>(_: T) -> U { - | ^^^^^^^^ required by this bound in `is_trait` help: consider specifying the generic arguments | LL | if false { is_trait::<T, U>(foo()) } else { Default::default() } @@ -19,4 +11,4 @@ LL | if false { is_trait::<T, U>(foo()) } else { Default::default() } error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0283`. +For more information about this error, try `rustc --explain E0282`. diff --git a/tests/ui/impl-trait/diagnostics/highlight-difference-between-expected-trait-and-found-trait.svg b/tests/ui/impl-trait/diagnostics/highlight-difference-between-expected-trait-and-found-trait.svg index 9832e28e008..73acb072ac5 100644 --- a/tests/ui/impl-trait/diagnostics/highlight-difference-between-expected-trait-and-found-trait.svg +++ b/tests/ui/impl-trait/diagnostics/highlight-difference-between-expected-trait-and-found-trait.svg @@ -1,4 +1,4 @@ -<svg width="1028px" height="398px" xmlns="http://www.w3.org/2000/svg"> +<svg width="1188px" height="398px" xmlns="http://www.w3.org/2000/svg"> <style> .fg { fill: #AAAAAA } .bg { background: #000000 } @@ -29,7 +29,7 @@ </tspan> <tspan x="10px" y="82px"><tspan class="fg-ansi256-012 bold">LL</tspan><tspan> </tspan><tspan class="fg-ansi256-012 bold">|</tspan><tspan> fn foo() -> impl Foo<i32> {</tspan> </tspan> - <tspan x="10px" y="100px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">|</tspan><tspan> </tspan><tspan class="fg-ansi256-009 bold">^^^^^^^^^^^^^</tspan><tspan> </tspan><tspan class="fg-ansi256-009 bold">the trait `Bar<i32>` is not implemented for `Struct`</tspan> + <tspan x="10px" y="100px"><tspan> </tspan><tspan class="fg-ansi256-012 bold">|</tspan><tspan> </tspan><tspan class="fg-ansi256-009 bold">^^^^^^^^^^^^^</tspan><tspan> </tspan><tspan class="fg-ansi256-009 bold">unsatisfied trait bound</tspan> </tspan> <tspan x="10px" y="118px"><tspan class="fg-ansi256-012 bold">LL</tspan><tspan> </tspan><tspan class="fg-ansi256-012 bold">|</tspan><tspan> Struct</tspan> </tspan> diff --git a/tests/ui/impl-trait/does-not-live-long-enough.stderr b/tests/ui/impl-trait/does-not-live-long-enough.stderr index cfc13298071..9f3918ce3e0 100644 --- a/tests/ui/impl-trait/does-not-live-long-enough.stderr +++ b/tests/ui/impl-trait/does-not-live-long-enough.stderr @@ -1,12 +1,14 @@ error[E0373]: closure may outlive the current function, but it borrows `prefix`, which is owned by the current function --> $DIR/does-not-live-long-enough.rs:6:33 | +LL | fn started_with<'a>(&'a self, prefix: &'a str) -> impl Iterator<Item=&'a str> { + | -- lifetime `'a` defined here LL | self.data.iter().filter(|s| s.starts_with(prefix)).map(|s| s.as_ref()) | ^^^ ------ `prefix` is borrowed here | | | may outlive borrowed value `prefix` | -note: closure is returned here +note: function requires argument type to outlive `'a` --> $DIR/does-not-live-long-enough.rs:6:9 | LL | self.data.iter().filter(|s| s.starts_with(prefix)).map(|s| s.as_ref()) diff --git a/tests/ui/impl-trait/example-st.stderr b/tests/ui/impl-trait/example-st.stderr index f722d7f6582..eb998bf3bb3 100644 --- a/tests/ui/impl-trait/example-st.stderr +++ b/tests/ui/impl-trait/example-st.stderr @@ -4,7 +4,7 @@ warning: trait `Bind` is never used LL | trait Bind<F> { | ^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/impl-trait/fresh-lifetime-from-bare-trait-obj-114664.stderr b/tests/ui/impl-trait/fresh-lifetime-from-bare-trait-obj-114664.stderr index 46b677202ef..447f236def3 100644 --- a/tests/ui/impl-trait/fresh-lifetime-from-bare-trait-obj-114664.stderr +++ b/tests/ui/impl-trait/fresh-lifetime-from-bare-trait-obj-114664.stderr @@ -6,7 +6,7 @@ LL | fn ice() -> impl AsRef<Fn(&())> { | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | fn ice() -> impl AsRef<dyn Fn(&())> { diff --git a/tests/ui/impl-trait/in-trait/bad-item-bound-within-rpitit.stderr b/tests/ui/impl-trait/in-trait/bad-item-bound-within-rpitit.stderr index d3729b6c973..8bc3c8b647c 100644 --- a/tests/ui/impl-trait/in-trait/bad-item-bound-within-rpitit.stderr +++ b/tests/ui/impl-trait/in-trait/bad-item-bound-within-rpitit.stderr @@ -25,7 +25,7 @@ LL | fn iter(&self) -> impl 'a + Iterator<Item = I::Item<'a>> { | = note: add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate = note: we are soliciting feedback, see issue #121718 <https://github.com/rust-lang/rust/issues/121718> for more information - = note: `#[warn(refining_impl_trait_reachable)]` on by default + = note: `#[warn(refining_impl_trait_reachable)]` (part of `#[warn(refining_impl_trait)]`) on by default help: replace the return type so that it matches the trait | LL - fn iter(&self) -> impl 'a + Iterator<Item = I::Item<'a>> { diff --git a/tests/ui/impl-trait/in-trait/expeced-refree-to-map-to-reearlybound-ice-108580.stderr b/tests/ui/impl-trait/in-trait/expeced-refree-to-map-to-reearlybound-ice-108580.stderr index 7c064cc7176..0a73a363786 100644 --- a/tests/ui/impl-trait/in-trait/expeced-refree-to-map-to-reearlybound-ice-108580.stderr +++ b/tests/ui/impl-trait/in-trait/expeced-refree-to-map-to-reearlybound-ice-108580.stderr @@ -9,7 +9,7 @@ LL | fn bar(&self) -> impl Iterator + '_ { | = note: add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate = note: we are soliciting feedback, see issue #121718 <https://github.com/rust-lang/rust/issues/121718> for more information - = note: `#[warn(refining_impl_trait_internal)]` on by default + = note: `#[warn(refining_impl_trait_internal)]` (part of `#[warn(refining_impl_trait)]`) on by default help: replace the return type so that it matches the trait | LL | fn bar(&self) -> impl Iterator<Item = impl Sized> + '_ { diff --git a/tests/ui/impl-trait/in-trait/refine-captures.stderr b/tests/ui/impl-trait/in-trait/refine-captures.stderr index 6f213f16144..f7ba99c0763 100644 --- a/tests/ui/impl-trait/in-trait/refine-captures.stderr +++ b/tests/ui/impl-trait/in-trait/refine-captures.stderr @@ -6,7 +6,7 @@ LL | fn test() -> impl Sized + use<> {} | = note: add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate = note: we are soliciting feedback, see issue #121718 <https://github.com/rust-lang/rust/issues/121718> for more information - = note: `#[warn(refining_impl_trait_internal)]` on by default + = note: `#[warn(refining_impl_trait_internal)]` (part of `#[warn(refining_impl_trait)]`) on by default help: modify the `use<..>` bound to capture the same lifetimes that the trait does | LL | fn test() -> impl Sized + use<'a> {} diff --git a/tests/ui/impl-trait/in-trait/return-dont-satisfy-bounds.stderr b/tests/ui/impl-trait/in-trait/return-dont-satisfy-bounds.stderr index a16e0160223..374176f041a 100644 --- a/tests/ui/impl-trait/in-trait/return-dont-satisfy-bounds.stderr +++ b/tests/ui/impl-trait/in-trait/return-dont-satisfy-bounds.stderr @@ -24,7 +24,7 @@ error[E0277]: the trait bound `Bar: Foo<u8>` is not satisfied --> $DIR/return-dont-satisfy-bounds.rs:8:34 | LL | fn foo<F2: Foo<u8>>(self) -> impl Foo<u8> { - | ^^^^^^^^^^^^ the trait `Foo<u8>` is not implemented for `Bar` + | ^^^^^^^^^^^^ unsatisfied trait bound ... LL | self | ---- return type was inferred to be `Bar` here diff --git a/tests/ui/impl-trait/in-trait/unconstrained-lt.stderr b/tests/ui/impl-trait/in-trait/unconstrained-lt.stderr index 27340c5b362..3a4d90dfd4e 100644 --- a/tests/ui/impl-trait/in-trait/unconstrained-lt.stderr +++ b/tests/ui/impl-trait/in-trait/unconstrained-lt.stderr @@ -9,7 +9,7 @@ LL | fn test() -> &'a () { | = note: add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate = note: we are soliciting feedback, see issue #121718 <https://github.com/rust-lang/rust/issues/121718> for more information - = note: `#[warn(refining_impl_trait_internal)]` on by default + = note: `#[warn(refining_impl_trait_internal)]` (part of `#[warn(refining_impl_trait)]`) on by default help: replace the return type so that it matches the trait | LL - fn test() -> &'a () { diff --git a/tests/ui/impl-trait/issues/issue-62742.stderr b/tests/ui/impl-trait/issues/issue-62742.stderr index ee4eb98f4ea..7ded3519d85 100644 --- a/tests/ui/impl-trait/issues/issue-62742.stderr +++ b/tests/ui/impl-trait/issues/issue-62742.stderr @@ -2,7 +2,7 @@ error[E0277]: the trait bound `RawImpl<_>: Raw<_>` is not satisfied --> $DIR/issue-62742.rs:4:5 | LL | WrongImpl::foo(0i32); - | ^^^^^^^^^ the trait `Raw<_>` is not implemented for `RawImpl<_>` + | ^^^^^^^^^ unsatisfied trait bound | = help: the trait `Raw<_>` is not implemented for `RawImpl<_>` but trait `Raw<[_]>` is implemented for it @@ -41,7 +41,7 @@ error[E0277]: the trait bound `RawImpl<()>: Raw<()>` is not satisfied --> $DIR/issue-62742.rs:10:5 | LL | WrongImpl::<()>::foo(0i32); - | ^^^^^^^^^^^^^^^ the trait `Raw<()>` is not implemented for `RawImpl<()>` + | ^^^^^^^^^^^^^^^ unsatisfied trait bound | = help: the trait `Raw<()>` is not implemented for `RawImpl<()>` but trait `Raw<[()]>` is implemented for it diff --git a/tests/ui/impl-trait/member-constraints/apply_member_constraint-no-req-eq.rs b/tests/ui/impl-trait/member-constraints/apply_member_constraint-no-req-eq.rs index 3aa52fe2644..e9af42b30e9 100644 --- a/tests/ui/impl-trait/member-constraints/apply_member_constraint-no-req-eq.rs +++ b/tests/ui/impl-trait/member-constraints/apply_member_constraint-no-req-eq.rs @@ -1,5 +1,7 @@ //@ check-pass -// FIXME(-Znext-solver): enable this test +//@ revisions: current next +//@ ignore-compare-mode-next-solver (explicit revisions) +//@[next] compile-flags: -Znext-solver trait Id { type This; diff --git a/tests/ui/impl-trait/member-constraints/nested-impl-trait-pass.rs b/tests/ui/impl-trait/member-constraints/nested-impl-trait-pass.rs index 6860fc5e6a5..878b8746bfa 100644 --- a/tests/ui/impl-trait/member-constraints/nested-impl-trait-pass.rs +++ b/tests/ui/impl-trait/member-constraints/nested-impl-trait-pass.rs @@ -1,7 +1,9 @@ // Nested impl-traits can impose different member constraints on the same region variable. //@ check-pass -// FIXME(-Znext-solver): enable this test +//@ revisions: current next +//@ ignore-compare-mode-next-solver (explicit revisions) +//@[next] compile-flags: -Znext-solver trait Cap<'a> {} impl<T> Cap<'_> for T {} diff --git a/tests/ui/impl-trait/nested-rpit-hrtb.rs b/tests/ui/impl-trait/nested-rpit-hrtb.rs index 11d79bcff73..f4ff13d6c20 100644 --- a/tests/ui/impl-trait/nested-rpit-hrtb.rs +++ b/tests/ui/impl-trait/nested-rpit-hrtb.rs @@ -48,6 +48,7 @@ fn one_hrtb_mention_fn_trait_param_uses<'b>() -> impl for<'a> Bar<'a, Assoc = im // This should resolve. fn one_hrtb_mention_fn_outlives_uses<'b>() -> impl for<'a> Bar<'a, Assoc = impl Sized + 'b> {} //~^ ERROR implementation of `Bar` is not general enough +//~| ERROR lifetime may not live long enough // This should resolve. fn two_htrb_trait_param() -> impl for<'a> Foo<'a, Assoc = impl for<'b> Qux<'b>> {} diff --git a/tests/ui/impl-trait/nested-rpit-hrtb.stderr b/tests/ui/impl-trait/nested-rpit-hrtb.stderr index 2e95ef370c7..93cd7bd788f 100644 --- a/tests/ui/impl-trait/nested-rpit-hrtb.stderr +++ b/tests/ui/impl-trait/nested-rpit-hrtb.stderr @@ -1,5 +1,5 @@ error[E0261]: use of undeclared lifetime name `'b` - --> $DIR/nested-rpit-hrtb.rs:56:77 + --> $DIR/nested-rpit-hrtb.rs:57:77 | LL | fn two_htrb_outlives() -> impl for<'a> Foo<'a, Assoc = impl for<'b> Sized + 'b> {} | ^^ undeclared lifetime @@ -15,7 +15,7 @@ LL | fn two_htrb_outlives<'b>() -> impl for<'a> Foo<'a, Assoc = impl for<'b> Siz | ++++ error[E0261]: use of undeclared lifetime name `'b` - --> $DIR/nested-rpit-hrtb.rs:64:82 + --> $DIR/nested-rpit-hrtb.rs:65:82 | LL | fn two_htrb_outlives_uses() -> impl for<'a> Bar<'a, Assoc = impl for<'b> Sized + 'b> {} | ^^ undeclared lifetime @@ -87,6 +87,12 @@ LL | fn one_hrtb_mention_fn_trait_param_uses<'b>() -> impl for<'a> Bar<'a, Assoc but trait `Qux<'_>` is implemented for `()` = help: for that trait implementation, expected `()`, found `&'a ()` +error: lifetime may not live long enough + --> $DIR/nested-rpit-hrtb.rs:49:93 + | +LL | fn one_hrtb_mention_fn_outlives_uses<'b>() -> impl for<'a> Bar<'a, Assoc = impl Sized + 'b> {} + | -- lifetime `'b` defined here ^^ opaque type requires that `'b` must outlive `'static` + error: implementation of `Bar` is not general enough --> $DIR/nested-rpit-hrtb.rs:49:93 | @@ -97,7 +103,7 @@ LL | fn one_hrtb_mention_fn_outlives_uses<'b>() -> impl for<'a> Bar<'a, Assoc = = note: ...but it actually implements `Bar<'0>`, for some specific lifetime `'0` error[E0277]: the trait bound `for<'a, 'b> &'a (): Qux<'b>` is not satisfied - --> $DIR/nested-rpit-hrtb.rs:60:64 + --> $DIR/nested-rpit-hrtb.rs:61:64 | LL | fn two_htrb_trait_param_uses() -> impl for<'a> Bar<'a, Assoc = impl for<'b> Qux<'b>> {} | ^^^^^^^^^^^^^^^^^^^^ the trait `for<'a, 'b> Qux<'b>` is not implemented for `&'a ()` @@ -106,7 +112,7 @@ LL | fn two_htrb_trait_param_uses() -> impl for<'a> Bar<'a, Assoc = impl for<'b> but trait `Qux<'_>` is implemented for `()` = help: for that trait implementation, expected `()`, found `&'a ()` -error: aborting due to 9 previous errors +error: aborting due to 10 previous errors Some errors have detailed explanations: E0261, E0277, E0657. For more information about an error, try `rustc --explain E0261`. diff --git a/tests/ui/impl-trait/no-anonymize-regions.rs b/tests/ui/impl-trait/no-anonymize-regions.rs index 4f7f7c0641c..a89c9e05a34 100644 --- a/tests/ui/impl-trait/no-anonymize-regions.rs +++ b/tests/ui/impl-trait/no-anonymize-regions.rs @@ -1,5 +1,7 @@ //@ check-pass -// FIXME(-Znext-solver): enable this test +//@ revisions: current next +//@ ignore-compare-mode-next-solver (explicit revisions) +//@[next] compile-flags: -Znext-solver // A regression test for an error in `redis` while working on #139587. // diff --git a/tests/ui/impl-trait/non-defining-uses/as-projection-term.next.stderr b/tests/ui/impl-trait/non-defining-uses/as-projection-term.next.stderr index 08c8365b180..96e242d5d48 100644 --- a/tests/ui/impl-trait/non-defining-uses/as-projection-term.next.stderr +++ b/tests/ui/impl-trait/non-defining-uses/as-projection-term.next.stderr @@ -1,12 +1,8 @@ -error[E0792]: expected generic lifetime parameter, found `'_` +error: non-defining use of `impl Sized + '_` in the defining scope --> $DIR/as-projection-term.rs:14:19 | -LL | fn recur<'a>() -> impl Sized + 'a { - | -- this generic parameter must be used with a generic lifetime parameter -... LL | prove_proj(|| recur()); | ^^^^^^^ error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0792`. diff --git a/tests/ui/impl-trait/non-defining-uses/as-projection-term.rs b/tests/ui/impl-trait/non-defining-uses/as-projection-term.rs index 4c5adc7a00a..f0cf333b6a1 100644 --- a/tests/ui/impl-trait/non-defining-uses/as-projection-term.rs +++ b/tests/ui/impl-trait/non-defining-uses/as-projection-term.rs @@ -12,6 +12,6 @@ fn recur<'a>() -> impl Sized + 'a { // inference variable at this point, we unify it with `opaque<'1>` and // end up ignoring that defining use as the hidden type is equal to its key. prove_proj(|| recur()); - //[next]~^ ERROR expected generic lifetime parameter, found `'_` + //[next]~^ ERROR non-defining use of `impl Sized + '_` in the defining scope } fn main() {} diff --git a/tests/ui/impl-trait/precise-capturing/parenthesized.rs b/tests/ui/impl-trait/precise-capturing/parenthesized.rs new file mode 100644 index 00000000000..e3f80fc1d9f --- /dev/null +++ b/tests/ui/impl-trait/precise-capturing/parenthesized.rs @@ -0,0 +1,8 @@ +// Ensure that we forbid parenthesized use-bounds. In the future we might want +// to lift this restriction but for now they bear no use whatsoever. + +fn f() -> impl Sized + (use<>) {} +//~^ ERROR precise capturing lists may not be parenthesized +//~| HELP remove the parentheses + +fn main() {} diff --git a/tests/ui/impl-trait/precise-capturing/parenthesized.stderr b/tests/ui/impl-trait/precise-capturing/parenthesized.stderr new file mode 100644 index 00000000000..c97fa9972ef --- /dev/null +++ b/tests/ui/impl-trait/precise-capturing/parenthesized.stderr @@ -0,0 +1,14 @@ +error: precise capturing lists may not be parenthesized + --> $DIR/parenthesized.rs:4:24 + | +LL | fn f() -> impl Sized + (use<>) {} + | ^^^^^^^ + | +help: remove the parentheses + | +LL - fn f() -> impl Sized + (use<>) {} +LL + fn f() -> impl Sized + use<> {} + | + +error: aborting due to 1 previous error + diff --git a/tests/ui/impl-trait/recursive-in-exhaustiveness.current.stderr b/tests/ui/impl-trait/recursive-in-exhaustiveness.current.stderr index 080c3284641..11a88b0918c 100644 --- a/tests/ui/impl-trait/recursive-in-exhaustiveness.current.stderr +++ b/tests/ui/impl-trait/recursive-in-exhaustiveness.current.stderr @@ -11,7 +11,7 @@ LL | fn build2<T>(x: T) -> impl Sized { | ^^^^^^^^^^ error[E0720]: cannot resolve opaque type - --> $DIR/recursive-in-exhaustiveness.rs:39:23 + --> $DIR/recursive-in-exhaustiveness.rs:37:23 | LL | fn build3<T>(x: T) -> impl Sized { | ^^^^^^^^^^ diff --git a/tests/ui/impl-trait/recursive-in-exhaustiveness.next.stderr b/tests/ui/impl-trait/recursive-in-exhaustiveness.next.stderr index db57be73acc..45df8cc9c0c 100644 --- a/tests/ui/impl-trait/recursive-in-exhaustiveness.next.stderr +++ b/tests/ui/impl-trait/recursive-in-exhaustiveness.next.stderr @@ -1,80 +1,21 @@ -error[E0284]: type annotations needed: cannot normalize `build<_>::{opaque#0}` - --> $DIR/recursive-in-exhaustiveness.rs:20:5 +error[E0282]: type annotations needed + --> $DIR/recursive-in-exhaustiveness.rs:19:17 | -LL | build(x) - | ^^^^^^^^ cannot normalize `build<_>::{opaque#0}` +LL | let (x,) = (build(x),); + | ^^^^^^^^ cannot infer type -error[E0271]: type mismatch resolving `build2<(_,)>::{opaque#0} normalizes-to _` - --> $DIR/recursive-in-exhaustiveness.rs:30:6 +error[E0282]: type annotations needed + --> $DIR/recursive-in-exhaustiveness.rs:29:17 | -LL | (build2(x),) - | ^^^^^^^^^ types differ +LL | let (x,) = (build2(x),); + | ^^^^^^^^^ cannot infer type -error[E0271]: type mismatch resolving `build2<(_,)>::{opaque#0} normalizes-to _` - --> $DIR/recursive-in-exhaustiveness.rs:30:5 +error[E0282]: type annotations needed + --> $DIR/recursive-in-exhaustiveness.rs:40:5 | -LL | (build2(x),) - | ^^^^^^^^^^^^ types differ +LL | build3(x) + | ^^^^^^^^^ cannot infer type -error[E0277]: the size for values of type `(impl Sized,)` cannot be known at compilation time - --> $DIR/recursive-in-exhaustiveness.rs:30:5 - | -LL | (build2(x),) - | ^^^^^^^^^^^^ doesn't have a size known at compile-time - | - = help: the trait `Sized` is not implemented for `(impl Sized,)` - = note: tuples must have a statically known size to be initialized - -error[E0271]: type mismatch resolving `build3<(T,)>::{opaque#0} normalizes-to _` - --> $DIR/recursive-in-exhaustiveness.rs:41:17 - | -LL | let (x,) = (build3((x,)),); - | ^^^^^^^^^^^^ types differ - -error[E0277]: the size for values of type `(impl Sized,)` cannot be known at compilation time - --> $DIR/recursive-in-exhaustiveness.rs:41:16 - | -LL | let (x,) = (build3((x,)),); - | ^^^^^^^^^^^^^^^ doesn't have a size known at compile-time - | - = help: the trait `Sized` is not implemented for `(impl Sized,)` - = note: tuples must have a statically known size to be initialized - -error[E0308]: mismatched types - --> $DIR/recursive-in-exhaustiveness.rs:41:16 - | -LL | fn build3<T>(x: T) -> impl Sized { - | ---------- the found opaque type -LL | -LL | let (x,) = (build3((x,)),); - | ^^^^^^^^^^^^^^^ types differ - | - = note: expected type `_` - found tuple `(impl Sized,)` - -error[E0271]: type mismatch resolving `build3<(T,)>::{opaque#0} normalizes-to _` - --> $DIR/recursive-in-exhaustiveness.rs:41:17 - | -LL | let (x,) = (build3((x,)),); - | ^^^^^^^^^^^^ types differ - | - = note: the return type of a function must have a statically known size - -error[E0271]: type mismatch resolving `build3<(T,)>::{opaque#0} normalizes-to _` - --> $DIR/recursive-in-exhaustiveness.rs:41:16 - | -LL | let (x,) = (build3((x,)),); - | ^^^^^^^^^^^^^^^ types differ - -error[E0271]: type mismatch resolving `build3<(T,)>::{opaque#0} normalizes-to _` - --> $DIR/recursive-in-exhaustiveness.rs:41:17 - | -LL | let (x,) = (build3((x,)),); - | ^^^^^^^^^^^^ types differ - | - = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` - -error: aborting due to 10 previous errors +error: aborting due to 3 previous errors -Some errors have detailed explanations: E0271, E0277, E0284, E0308. -For more information about an error, try `rustc --explain E0271`. +For more information about this error, try `rustc --explain E0282`. diff --git a/tests/ui/impl-trait/recursive-in-exhaustiveness.rs b/tests/ui/impl-trait/recursive-in-exhaustiveness.rs index dabef22af86..7aee8a630a5 100644 --- a/tests/ui/impl-trait/recursive-in-exhaustiveness.rs +++ b/tests/ui/impl-trait/recursive-in-exhaustiveness.rs @@ -17,8 +17,8 @@ fn build<T>(x: T) -> impl Sized { //[current]~^ ERROR cannot resolve opaque type let (x,) = (build(x),); + //[next]~^ ERROR type annotations needed build(x) - //[next]~^ ERROR type annotations needed: cannot normalize `build<_>::{opaque#0}` } // Opaque<T> = (Opaque<T>,) @@ -27,10 +27,8 @@ fn build<T>(x: T) -> impl Sized { fn build2<T>(x: T) -> impl Sized { //[current]~^ ERROR cannot resolve opaque type let (x,) = (build2(x),); + //[next]~^ ERROR type annotations needed (build2(x),) - //[next]~^ ERROR type mismatch resolving - //[next]~| ERROR type mismatch resolving - //[next]~| ERROR the size for values of type } // Opaque<T> = Opaque<(T,)> @@ -39,13 +37,8 @@ fn build2<T>(x: T) -> impl Sized { fn build3<T>(x: T) -> impl Sized { //[current]~^ ERROR cannot resolve opaque type let (x,) = (build3((x,)),); - //[next]~^ ERROR type mismatch resolving - //[next]~| ERROR type mismatch resolving - //[next]~| ERROR type mismatch resolving - //[next]~| ERROR type mismatch resolving - //[next]~| ERROR the size for values of type - //[next]~| ERROR mismatched types build3(x) + //[next]~^ ERROR type annotations needed } fn main() {} diff --git a/tests/ui/impl-trait/recursive-type-alias-impl-trait-declaration.stderr b/tests/ui/impl-trait/recursive-type-alias-impl-trait-declaration.stderr index a9a5483caa9..da196ae0433 100644 --- a/tests/ui/impl-trait/recursive-type-alias-impl-trait-declaration.stderr +++ b/tests/ui/impl-trait/recursive-type-alias-impl-trait-declaration.stderr @@ -7,7 +7,11 @@ LL | LL | Bar | --- return type was inferred to be `Bar` here | - = help: the trait `PartialEq<(Foo, i32)>` is not implemented for `Bar` +help: the trait `PartialEq<(Foo, i32)>` is not implemented for `Bar` + --> $DIR/recursive-type-alias-impl-trait-declaration.rs:5:1 + | +LL | struct Bar; + | ^^^^^^^^^^ = help: the trait `PartialEq<(Bar, i32)>` is implemented for `Bar` error: aborting due to 1 previous error diff --git a/tests/ui/impl-trait/rpit-assoc-pair-with-lifetime.stderr b/tests/ui/impl-trait/rpit-assoc-pair-with-lifetime.stderr index 3651226e0c3..7a9254bac60 100644 --- a/tests/ui/impl-trait/rpit-assoc-pair-with-lifetime.stderr +++ b/tests/ui/impl-trait/rpit-assoc-pair-with-lifetime.stderr @@ -1,8 +1,8 @@ warning: eliding a lifetime that's named elsewhere is confusing - --> $DIR/rpit-assoc-pair-with-lifetime.rs:3:31 + --> $DIR/rpit-assoc-pair-with-lifetime.rs:3:82 | LL | pub fn iter<'a>(v: Vec<(u32, &'a u32)>) -> impl DoubleEndedIterator<Item = (u32, &u32)> { - | ^^ the lifetime is named here ---- the same lifetime is elided here + | -- the lifetime is named here ^^^^ the same lifetime is elided here | = help: the same lifetime is referred to in inconsistent ways, making the signature confusing = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default diff --git a/tests/ui/impl-trait/transmute/in-defining-scope.rs b/tests/ui/impl-trait/transmute/in-defining-scope.rs index 4c8e1852a91..d9eafcc553c 100644 --- a/tests/ui/impl-trait/transmute/in-defining-scope.rs +++ b/tests/ui/impl-trait/transmute/in-defining-scope.rs @@ -1,11 +1,12 @@ -// This causes a query cycle due to using `TypingEnv::PostAnalysis`, +// Used to cause a query cycle due to using `TypingEnv::PostAnalysis`, // in #119821 const eval was changed to always use this mode. // -// See that PR for more details. +//@ check-pass + use std::mem::transmute; + fn foo() -> impl Sized { - //~^ ERROR cycle detected when computing type of - //~| WARN function cannot return without recursing + //~^ WARN function cannot return without recursing unsafe { transmute::<_, u8>(foo()); } diff --git a/tests/ui/impl-trait/transmute/in-defining-scope.stderr b/tests/ui/impl-trait/transmute/in-defining-scope.stderr index 31535695178..015a39d6670 100644 --- a/tests/ui/impl-trait/transmute/in-defining-scope.stderr +++ b/tests/ui/impl-trait/transmute/in-defining-scope.stderr @@ -1,56 +1,5 @@ -error[E0391]: cycle detected when computing type of `foo::{opaque#0}` - --> $DIR/in-defining-scope.rs:6:13 - | -LL | fn foo() -> impl Sized { - | ^^^^^^^^^^ - | -note: ...which requires computing type of opaque `foo::{opaque#0}`... - --> $DIR/in-defining-scope.rs:6:13 - | -LL | fn foo() -> impl Sized { - | ^^^^^^^^^^ -note: ...which requires borrow-checking `foo`... - --> $DIR/in-defining-scope.rs:6:1 - | -LL | fn foo() -> impl Sized { - | ^^^^^^^^^^^^^^^^^^^^^^ -note: ...which requires promoting constants in MIR for `foo`... - --> $DIR/in-defining-scope.rs:6:1 - | -LL | fn foo() -> impl Sized { - | ^^^^^^^^^^^^^^^^^^^^^^ -note: ...which requires checking if `foo` contains FFI-unwind calls... - --> $DIR/in-defining-scope.rs:6:1 - | -LL | fn foo() -> impl Sized { - | ^^^^^^^^^^^^^^^^^^^^^^ -note: ...which requires building MIR for `foo`... - --> $DIR/in-defining-scope.rs:6:1 - | -LL | fn foo() -> impl Sized { - | ^^^^^^^^^^^^^^^^^^^^^^ -note: ...which requires match-checking `foo`... - --> $DIR/in-defining-scope.rs:6:1 - | -LL | fn foo() -> impl Sized { - | ^^^^^^^^^^^^^^^^^^^^^^ -note: ...which requires type-checking `foo`... - --> $DIR/in-defining-scope.rs:6:1 - | -LL | fn foo() -> impl Sized { - | ^^^^^^^^^^^^^^^^^^^^^^ - = note: ...which requires computing layout of `foo::{opaque#0}`... - = note: ...which requires normalizing `foo::{opaque#0}`... - = note: ...which again requires computing type of `foo::{opaque#0}`, completing the cycle -note: cycle used when checking that `foo::{opaque#0}` is well-formed - --> $DIR/in-defining-scope.rs:6:13 - | -LL | fn foo() -> impl Sized { - | ^^^^^^^^^^ - = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information - warning: function cannot return without recursing - --> $DIR/in-defining-scope.rs:6:1 + --> $DIR/in-defining-scope.rs:8:1 | LL | fn foo() -> impl Sized { | ^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing @@ -61,6 +10,5 @@ LL | transmute::<_, u8>(foo()); = help: a `loop` may express intention better if this is on purpose = note: `#[warn(unconditional_recursion)]` on by default -error: aborting due to 1 previous error; 1 warning emitted +warning: 1 warning emitted -For more information about this error, try `rustc --explain E0391`. diff --git a/tests/ui/impl-trait/two_tait_defining_each_other2.next.stderr b/tests/ui/impl-trait/two_tait_defining_each_other2.next.stderr index fac4776905d..785e5fdeb64 100644 --- a/tests/ui/impl-trait/two_tait_defining_each_other2.next.stderr +++ b/tests/ui/impl-trait/two_tait_defining_each_other2.next.stderr @@ -1,9 +1,15 @@ error[E0282]: type annotations needed - --> $DIR/two_tait_defining_each_other2.rs:12:11 + --> $DIR/two_tait_defining_each_other2.rs:12:8 | LL | fn muh(x: A) -> B { - | ^ cannot infer type + | ^ cannot infer type -error: aborting due to 1 previous error +error[E0282]: type annotations needed + --> $DIR/two_tait_defining_each_other2.rs:14:5 + | +LL | x // B's hidden type is A (opaquely) + | ^ cannot infer type + +error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0282`. diff --git a/tests/ui/impl-trait/two_tait_defining_each_other2.rs b/tests/ui/impl-trait/two_tait_defining_each_other2.rs index ec2963249f9..99262f4bc4b 100644 --- a/tests/ui/impl-trait/two_tait_defining_each_other2.rs +++ b/tests/ui/impl-trait/two_tait_defining_each_other2.rs @@ -12,7 +12,8 @@ trait Foo {} fn muh(x: A) -> B { //[next]~^ ERROR: type annotations needed x // B's hidden type is A (opaquely) - //[current]~^ ERROR opaque type's hidden type cannot be another opaque type + //[next]~^ ERROR: type annotations needed + //[current]~^^ ERROR opaque type's hidden type cannot be another opaque type } struct Bar; diff --git a/tests/ui/impl-trait/type-alias-generic-param.stderr b/tests/ui/impl-trait/type-alias-generic-param.stderr index e4115dc1319..0a063eed257 100644 --- a/tests/ui/impl-trait/type-alias-generic-param.stderr +++ b/tests/ui/impl-trait/type-alias-generic-param.stderr @@ -4,7 +4,7 @@ warning: trait `Meow` is never used LL | trait Meow { | ^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/imports/ambiguous-10.stderr b/tests/ui/imports/ambiguous-10.stderr index cd36795b3c0..f175d27c99e 100644 --- a/tests/ui/imports/ambiguous-10.stderr +++ b/tests/ui/imports/ambiguous-10.stderr @@ -19,7 +19,7 @@ note: `Token` could also refer to the enum imported here LL | use crate::b::*; | ^^^^^^^^^^^ = help: consider adding an explicit import of `Token` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 1 previous error @@ -45,5 +45,5 @@ note: `Token` could also refer to the enum imported here LL | use crate::b::*; | ^^^^^^^^^^^ = help: consider adding an explicit import of `Token` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/imports/ambiguous-12.stderr b/tests/ui/imports/ambiguous-12.stderr index 273a4ed3c0f..5f92eae0dbc 100644 --- a/tests/ui/imports/ambiguous-12.stderr +++ b/tests/ui/imports/ambiguous-12.stderr @@ -19,7 +19,7 @@ note: `b` could also refer to the function imported here LL | use crate::public::*; | ^^^^^^^^^^^^^^^^ = help: consider adding an explicit import of `b` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 1 previous error @@ -45,5 +45,5 @@ note: `b` could also refer to the function imported here LL | use crate::public::*; | ^^^^^^^^^^^^^^^^ = help: consider adding an explicit import of `b` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/imports/ambiguous-13.stderr b/tests/ui/imports/ambiguous-13.stderr index c4a42c01c91..279b4e8f142 100644 --- a/tests/ui/imports/ambiguous-13.stderr +++ b/tests/ui/imports/ambiguous-13.stderr @@ -19,7 +19,7 @@ note: `Rect` could also refer to the struct imported here LL | use crate::content::*; | ^^^^^^^^^^^^^^^^^ = help: consider adding an explicit import of `Rect` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 1 previous error @@ -45,5 +45,5 @@ note: `Rect` could also refer to the struct imported here LL | use crate::content::*; | ^^^^^^^^^^^^^^^^^ = help: consider adding an explicit import of `Rect` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/imports/ambiguous-14.stderr b/tests/ui/imports/ambiguous-14.stderr index f3115f8c8b5..ef7e2669bae 100644 --- a/tests/ui/imports/ambiguous-14.stderr +++ b/tests/ui/imports/ambiguous-14.stderr @@ -19,7 +19,7 @@ note: `foo` could also refer to the function imported here LL | pub use b::*; | ^^^^ = help: consider adding an explicit import of `foo` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 1 previous error @@ -45,5 +45,5 @@ note: `foo` could also refer to the function imported here LL | pub use b::*; | ^^^^ = help: consider adding an explicit import of `foo` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/imports/ambiguous-15.stderr b/tests/ui/imports/ambiguous-15.stderr index 1312f2c63c4..15f83546532 100644 --- a/tests/ui/imports/ambiguous-15.stderr +++ b/tests/ui/imports/ambiguous-15.stderr @@ -19,7 +19,7 @@ note: `Error` could also refer to the enum imported here LL | pub use t2::*; | ^^^^^ = help: consider adding an explicit import of `Error` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 1 previous error @@ -45,5 +45,5 @@ note: `Error` could also refer to the enum imported here LL | pub use t2::*; | ^^^^^ = help: consider adding an explicit import of `Error` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/imports/ambiguous-16.stderr b/tests/ui/imports/ambiguous-16.stderr index ae65f9a84fc..7c80dee17f0 100644 --- a/tests/ui/imports/ambiguous-16.stderr +++ b/tests/ui/imports/ambiguous-16.stderr @@ -19,7 +19,7 @@ note: `ConfirmedTranscriptHashInput` could also refer to the struct imported her LL | pub use self::public_message_in::*; | ^^^^^^^^^^^^^^^^^^^^^^^^^^ = help: consider adding an explicit import of `ConfirmedTranscriptHashInput` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 1 previous error @@ -45,5 +45,5 @@ note: `ConfirmedTranscriptHashInput` could also refer to the struct imported her LL | pub use self::public_message_in::*; | ^^^^^^^^^^^^^^^^^^^^^^^^^^ = help: consider adding an explicit import of `ConfirmedTranscriptHashInput` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/imports/ambiguous-17.stderr b/tests/ui/imports/ambiguous-17.stderr index a87e2572d63..38491ce1062 100644 --- a/tests/ui/imports/ambiguous-17.stderr +++ b/tests/ui/imports/ambiguous-17.stderr @@ -29,7 +29,7 @@ note: `id` could also refer to the function imported here LL | pub use handwritten::*; | ^^^^^^^^^^^^^^ = help: consider adding an explicit import of `id` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 1 previous error; 1 warning emitted @@ -55,5 +55,5 @@ note: `id` could also refer to the function imported here LL | pub use handwritten::*; | ^^^^^^^^^^^^^^ = help: consider adding an explicit import of `id` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/imports/ambiguous-3.stderr b/tests/ui/imports/ambiguous-3.stderr index 8766db5654a..27fa05a195b 100644 --- a/tests/ui/imports/ambiguous-3.stderr +++ b/tests/ui/imports/ambiguous-3.stderr @@ -19,7 +19,7 @@ note: `x` could also refer to the function imported here LL | pub use self::c::*; | ^^^^^^^^^^ = help: consider adding an explicit import of `x` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 1 previous error @@ -45,5 +45,5 @@ note: `x` could also refer to the function imported here LL | pub use self::c::*; | ^^^^^^^^^^ = help: consider adding an explicit import of `x` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/imports/ambiguous-5.stderr b/tests/ui/imports/ambiguous-5.stderr index 41c15809351..1fc5f4543f3 100644 --- a/tests/ui/imports/ambiguous-5.stderr +++ b/tests/ui/imports/ambiguous-5.stderr @@ -19,7 +19,7 @@ note: `Class` could also refer to the struct imported here LL | use super::gsubgpos::*; | ^^^^^^^^^^^^^^^^^^ = help: consider adding an explicit import of `Class` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 1 previous error @@ -45,5 +45,5 @@ note: `Class` could also refer to the struct imported here LL | use super::gsubgpos::*; | ^^^^^^^^^^^^^^^^^^ = help: consider adding an explicit import of `Class` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/imports/ambiguous-6.stderr b/tests/ui/imports/ambiguous-6.stderr index d988126dbfb..681bc40931f 100644 --- a/tests/ui/imports/ambiguous-6.stderr +++ b/tests/ui/imports/ambiguous-6.stderr @@ -19,7 +19,7 @@ note: `C` could also refer to the constant imported here LL | pub use mod2::*; | ^^^^^^^ = help: consider adding an explicit import of `C` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 1 previous error @@ -45,5 +45,5 @@ note: `C` could also refer to the constant imported here LL | pub use mod2::*; | ^^^^^^^ = help: consider adding an explicit import of `C` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/imports/ambiguous-9.stderr b/tests/ui/imports/ambiguous-9.stderr index 1c4768da827..800a2e10c9d 100644 --- a/tests/ui/imports/ambiguous-9.stderr +++ b/tests/ui/imports/ambiguous-9.stderr @@ -29,7 +29,7 @@ note: `date_range` could also refer to the function imported here LL | use super::prelude::*; | ^^^^^^^^^^^^^^^^^ = help: consider adding an explicit import of `date_range` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default warning: ambiguous glob re-exports --> $DIR/ambiguous-9.rs:15:13 @@ -85,7 +85,7 @@ note: `date_range` could also refer to the function imported here LL | use super::prelude::*; | ^^^^^^^^^^^^^^^^^ = help: consider adding an explicit import of `date_range` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: `date_range` is ambiguous @@ -109,5 +109,5 @@ note: `date_range` could also refer to the function imported here LL | use prelude::*; | ^^^^^^^^^^ = help: consider adding an explicit import of `date_range` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/imports/duplicate.stderr b/tests/ui/imports/duplicate.stderr index ef987d07c04..5cd3b0c2c8a 100644 --- a/tests/ui/imports/duplicate.stderr +++ b/tests/ui/imports/duplicate.stderr @@ -89,7 +89,7 @@ note: `foo` could also refer to the function imported here LL | pub use crate::b::*; | ^^^^^^^^^^^ = help: consider adding an explicit import of `foo` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 5 previous errors @@ -117,5 +117,5 @@ note: `foo` could also refer to the function imported here LL | pub use crate::b::*; | ^^^^^^^^^^^ = help: consider adding an explicit import of `foo` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/imports/local-modularized-tricky-fail-2.stderr b/tests/ui/imports/local-modularized-tricky-fail-2.stderr index ea4056b3d75..e5b48d2efdd 100644 --- a/tests/ui/imports/local-modularized-tricky-fail-2.stderr +++ b/tests/ui/imports/local-modularized-tricky-fail-2.stderr @@ -16,7 +16,7 @@ LL | | } ... LL | define_exported!(); | ------------------ in this macro invocation - = note: `#[deny(macro_expanded_macro_exports_accessed_by_absolute_paths)]` on by default + = note: `#[deny(macro_expanded_macro_exports_accessed_by_absolute_paths)]` (part of `#[deny(future_incompatible)]`) on by default = note: this error originates in the macro `define_exported` (in Nightly builds, run with -Z macro-backtrace for more info) error: macro-expanded `macro_export` macros from the current crate cannot be referred to by absolute paths @@ -60,7 +60,7 @@ LL | | } ... LL | define_exported!(); | ------------------ in this macro invocation - = note: `#[deny(macro_expanded_macro_exports_accessed_by_absolute_paths)]` on by default + = note: `#[deny(macro_expanded_macro_exports_accessed_by_absolute_paths)]` (part of `#[deny(future_incompatible)]`) on by default = note: this error originates in the macro `define_exported` (in Nightly builds, run with -Z macro-backtrace for more info) Future breakage diagnostic: @@ -82,6 +82,6 @@ LL | | } ... LL | define_exported!(); | ------------------ in this macro invocation - = note: `#[deny(macro_expanded_macro_exports_accessed_by_absolute_paths)]` on by default + = note: `#[deny(macro_expanded_macro_exports_accessed_by_absolute_paths)]` (part of `#[deny(future_incompatible)]`) on by default = note: this error originates in the macro `define_exported` (in Nightly builds, run with -Z macro-backtrace for more info) diff --git a/tests/ui/imports/unresolved-seg-after-ambiguous.stderr b/tests/ui/imports/unresolved-seg-after-ambiguous.stderr index 3b50ae32683..67316462a27 100644 --- a/tests/ui/imports/unresolved-seg-after-ambiguous.stderr +++ b/tests/ui/imports/unresolved-seg-after-ambiguous.stderr @@ -25,7 +25,7 @@ note: `E` could also refer to the struct imported here LL | pub use self::d::*; | ^^^^^^^^^^ = help: consider adding an explicit import of `E` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 2 previous errors @@ -52,5 +52,5 @@ note: `E` could also refer to the struct imported here LL | pub use self::d::*; | ^^^^^^^^^^ = help: consider adding an explicit import of `E` to disambiguate - = note: `#[deny(ambiguous_glob_imports)]` on by default + = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/inference/inference-variable-behind-raw-pointer.stderr b/tests/ui/inference/inference-variable-behind-raw-pointer.stderr index 3dea09e7f52..fe4e16c3328 100644 --- a/tests/ui/inference/inference-variable-behind-raw-pointer.stderr +++ b/tests/ui/inference/inference-variable-behind-raw-pointer.stderr @@ -6,7 +6,7 @@ LL | if data.is_null() {} | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! = note: for more information, see issue #46906 <https://github.com/rust-lang/rust/issues/46906> - = note: `#[warn(tyvar_behind_raw_pointer)]` on by default + = note: `#[warn(tyvar_behind_raw_pointer)]` (part of `#[warn(rust_2018_compatibility)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/inference/inference_unstable.stderr b/tests/ui/inference/inference_unstable.stderr index 395dcb2661f..0072175d514 100644 --- a/tests/ui/inference/inference_unstable.stderr +++ b/tests/ui/inference/inference_unstable.stderr @@ -7,7 +7,7 @@ LL | assert_eq!('x'.ipu_flatten(), 1); = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919> = help: call with fully qualified syntax `inference_unstable_itertools::IpuItertools::ipu_flatten(...)` to keep using the current method - = note: `#[warn(unstable_name_collisions)]` on by default + = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default help: add `#![feature(ipu_flatten)]` to the crate attributes to enable `inference_unstable_iterator::IpuIterator::ipu_flatten` | LL + #![feature(ipu_flatten)] diff --git a/tests/ui/issues/issue-85461.rs b/tests/ui/instrument-coverage/link-regex-crate-with-instrument-coverage-85461.rs index 72538081ccb..ffb535e69ee 100644 --- a/tests/ui/issues/issue-85461.rs +++ b/tests/ui/instrument-coverage/link-regex-crate-with-instrument-coverage-85461.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/85461 //@ compile-flags: -Cinstrument-coverage -Ccodegen-units=4 --crate-type dylib -Copt-level=0 //@ build-pass //@ needs-profiler-runtime diff --git a/tests/ui/intrinsics/non-integer-atomic.stderr b/tests/ui/intrinsics/non-integer-atomic.stderr index 330d313639d..c27013c0de2 100644 --- a/tests/ui/intrinsics/non-integer-atomic.stderr +++ b/tests/ui/intrinsics/non-integer-atomic.stderr @@ -4,20 +4,20 @@ error[E0511]: invalid monomorphization of `atomic_load` intrinsic: expected basi LL | intrinsics::atomic_load::<_, { SeqCst }>(p); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +error[E0511]: invalid monomorphization of `atomic_xchg` intrinsic: expected basic integer or pointer type, found `&dyn Fn()` + --> $DIR/non-integer-atomic.rs:65:5 + | +LL | intrinsics::atomic_xchg::<_, { SeqCst }>(p, v); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + error[E0511]: invalid monomorphization of `atomic_load` intrinsic: expected basic integer or pointer type, found `Foo` --> $DIR/non-integer-atomic.rs:35:5 | LL | intrinsics::atomic_load::<_, { SeqCst }>(p); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error[E0511]: invalid monomorphization of `atomic_store` intrinsic: expected basic integer or pointer type, found `&dyn Fn()` - --> $DIR/non-integer-atomic.rs:60:5 - | -LL | intrinsics::atomic_store::<_, { SeqCst }>(p, v); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -error[E0511]: invalid monomorphization of `atomic_xchg` intrinsic: expected basic integer or pointer type, found `[u8; 100]` - --> $DIR/non-integer-atomic.rs:85:5 +error[E0511]: invalid monomorphization of `atomic_xchg` intrinsic: expected basic integer or pointer type, found `Foo` + --> $DIR/non-integer-atomic.rs:45:5 | LL | intrinsics::atomic_xchg::<_, { SeqCst }>(p, v); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -28,71 +28,71 @@ error[E0511]: invalid monomorphization of `atomic_cxchg` intrinsic: expected bas LL | intrinsics::atomic_cxchg::<_, { SeqCst }, { SeqCst }>(p, v, v); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error[E0511]: invalid monomorphization of `atomic_store` intrinsic: expected basic integer or pointer type, found `Foo` - --> $DIR/non-integer-atomic.rs:40:5 +error[E0511]: invalid monomorphization of `atomic_store` intrinsic: expected basic integer or pointer type, found `&dyn Fn()` + --> $DIR/non-integer-atomic.rs:60:5 | LL | intrinsics::atomic_store::<_, { SeqCst }>(p, v); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error[E0511]: invalid monomorphization of `atomic_cxchg` intrinsic: expected basic integer or pointer type, found `[u8; 100]` - --> $DIR/non-integer-atomic.rs:90:5 +error[E0511]: invalid monomorphization of `atomic_cxchg` intrinsic: expected basic integer or pointer type, found `Foo` + --> $DIR/non-integer-atomic.rs:50:5 | LL | intrinsics::atomic_cxchg::<_, { SeqCst }, { SeqCst }>(p, v, v); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error[E0511]: invalid monomorphization of `atomic_store` intrinsic: expected basic integer or pointer type, found `[u8; 100]` - --> $DIR/non-integer-atomic.rs:80:5 - | -LL | intrinsics::atomic_store::<_, { SeqCst }>(p, v); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -error[E0511]: invalid monomorphization of `atomic_store` intrinsic: expected basic integer or pointer type, found `bool` - --> $DIR/non-integer-atomic.rs:20:5 +error[E0511]: invalid monomorphization of `atomic_store` intrinsic: expected basic integer or pointer type, found `Foo` + --> $DIR/non-integer-atomic.rs:40:5 | LL | intrinsics::atomic_store::<_, { SeqCst }>(p, v); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error[E0511]: invalid monomorphization of `atomic_xchg` intrinsic: expected basic integer or pointer type, found `&dyn Fn()` - --> $DIR/non-integer-atomic.rs:65:5 - | -LL | intrinsics::atomic_xchg::<_, { SeqCst }>(p, v); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - error[E0511]: invalid monomorphization of `atomic_load` intrinsic: expected basic integer or pointer type, found `[u8; 100]` --> $DIR/non-integer-atomic.rs:75:5 | LL | intrinsics::atomic_load::<_, { SeqCst }>(p); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +error[E0511]: invalid monomorphization of `atomic_xchg` intrinsic: expected basic integer or pointer type, found `[u8; 100]` + --> $DIR/non-integer-atomic.rs:85:5 + | +LL | intrinsics::atomic_xchg::<_, { SeqCst }>(p, v); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + error[E0511]: invalid monomorphization of `atomic_load` intrinsic: expected basic integer or pointer type, found `bool` --> $DIR/non-integer-atomic.rs:15:5 | LL | intrinsics::atomic_load::<_, { SeqCst }>(p); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error[E0511]: invalid monomorphization of `atomic_cxchg` intrinsic: expected basic integer or pointer type, found `bool` - --> $DIR/non-integer-atomic.rs:30:5 +error[E0511]: invalid monomorphization of `atomic_xchg` intrinsic: expected basic integer or pointer type, found `bool` + --> $DIR/non-integer-atomic.rs:25:5 | -LL | intrinsics::atomic_cxchg::<_, { SeqCst }, { SeqCst }>(p, v, v); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | intrinsics::atomic_xchg::<_, { SeqCst }>(p, v); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error[E0511]: invalid monomorphization of `atomic_cxchg` intrinsic: expected basic integer or pointer type, found `Foo` - --> $DIR/non-integer-atomic.rs:50:5 +error[E0511]: invalid monomorphization of `atomic_cxchg` intrinsic: expected basic integer or pointer type, found `[u8; 100]` + --> $DIR/non-integer-atomic.rs:90:5 | LL | intrinsics::atomic_cxchg::<_, { SeqCst }, { SeqCst }>(p, v, v); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error[E0511]: invalid monomorphization of `atomic_xchg` intrinsic: expected basic integer or pointer type, found `Foo` - --> $DIR/non-integer-atomic.rs:45:5 +error[E0511]: invalid monomorphization of `atomic_store` intrinsic: expected basic integer or pointer type, found `[u8; 100]` + --> $DIR/non-integer-atomic.rs:80:5 | -LL | intrinsics::atomic_xchg::<_, { SeqCst }>(p, v); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | intrinsics::atomic_store::<_, { SeqCst }>(p, v); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error[E0511]: invalid monomorphization of `atomic_xchg` intrinsic: expected basic integer or pointer type, found `bool` - --> $DIR/non-integer-atomic.rs:25:5 +error[E0511]: invalid monomorphization of `atomic_cxchg` intrinsic: expected basic integer or pointer type, found `bool` + --> $DIR/non-integer-atomic.rs:30:5 | -LL | intrinsics::atomic_xchg::<_, { SeqCst }>(p, v); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | intrinsics::atomic_cxchg::<_, { SeqCst }, { SeqCst }>(p, v, v); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error[E0511]: invalid monomorphization of `atomic_store` intrinsic: expected basic integer or pointer type, found `bool` + --> $DIR/non-integer-atomic.rs:20:5 + | +LL | intrinsics::atomic_store::<_, { SeqCst }>(p, v); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to 16 previous errors diff --git a/tests/ui/invalid-compile-flags/indirect-branch-cs-prefix/requires-x86-or-x86_64.aarch64.stderr b/tests/ui/invalid-compile-flags/indirect-branch-cs-prefix/requires-x86-or-x86_64.aarch64.stderr new file mode 100644 index 00000000000..e3f7871da35 --- /dev/null +++ b/tests/ui/invalid-compile-flags/indirect-branch-cs-prefix/requires-x86-or-x86_64.aarch64.stderr @@ -0,0 +1,4 @@ +error: `-Zindirect-branch-cs-prefix` is only supported on x86 and x86_64 + +error: aborting due to 1 previous error + diff --git a/tests/ui/invalid-compile-flags/indirect-branch-cs-prefix/requires-x86-or-x86_64.rs b/tests/ui/invalid-compile-flags/indirect-branch-cs-prefix/requires-x86-or-x86_64.rs new file mode 100644 index 00000000000..bc81c993d26 --- /dev/null +++ b/tests/ui/invalid-compile-flags/indirect-branch-cs-prefix/requires-x86-or-x86_64.rs @@ -0,0 +1,21 @@ +//@ revisions: x86 x86_64 aarch64 + +//@ compile-flags: -Zindirect-branch-cs-prefix + +//@[x86] check-pass +//@[x86] needs-llvm-components: x86 +//@[x86] compile-flags: --target i686-unknown-linux-gnu + +//@[x86_64] check-pass +//@[x86_64] needs-llvm-components: x86 +//@[x86_64] compile-flags: --target x86_64-unknown-linux-gnu + +//@[aarch64] check-fail +//@[aarch64] needs-llvm-components: aarch64 +//@[aarch64] compile-flags: --target aarch64-unknown-linux-gnu + +#![feature(no_core)] +#![no_core] +#![no_main] + +//[aarch64]~? ERROR `-Zindirect-branch-cs-prefix` is only supported on x86 and x86_64 diff --git a/tests/ui/invalid-compile-flags/print-crate-name-request-malformed-crate-name.rs b/tests/ui/invalid-compile-flags/print-crate-name-request-malformed-crate-name.rs index c7f3c2c5403..62f1f6cd09c 100644 --- a/tests/ui/invalid-compile-flags/print-crate-name-request-malformed-crate-name.rs +++ b/tests/ui/invalid-compile-flags/print-crate-name-request-malformed-crate-name.rs @@ -2,4 +2,4 @@ // See also <https://github.com/rust-lang/rust/issues/122001>. //@ compile-flags: --print=crate-name -#![crate_name = concat!("wrapped")] //~ ERROR malformed `crate_name` attribute input +#![crate_name = concat!("wrapped")] //~ ERROR attribute value must be a literal diff --git a/tests/ui/invalid-compile-flags/print-crate-name-request-malformed-crate-name.stderr b/tests/ui/invalid-compile-flags/print-crate-name-request-malformed-crate-name.stderr index b773f7c97aa..fab38dae78b 100644 --- a/tests/ui/invalid-compile-flags/print-crate-name-request-malformed-crate-name.stderr +++ b/tests/ui/invalid-compile-flags/print-crate-name-request-malformed-crate-name.stderr @@ -1,10 +1,8 @@ -error: malformed `crate_name` attribute input - --> $DIR/print-crate-name-request-malformed-crate-name.rs:5:1 +error: attribute value must be a literal + --> $DIR/print-crate-name-request-malformed-crate-name.rs:5:17 | LL | #![crate_name = concat!("wrapped")] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#![crate_name = "name"]` - | - = note: for more information, visit <https://doc.rust-lang.org/reference/crates-and-source-files.html#the-crate_name-attribute> + | ^^^^^^^^^^^^^^^^^^ error: aborting due to 1 previous error diff --git a/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name-1.stderr b/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name-1.stderr index 64e38ed8533..d3e60948e4c 100644 --- a/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name-1.stderr +++ b/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name-1.stderr @@ -1,10 +1,9 @@ -error: malformed `crate_name` attribute input +error[E0539]: malformed `crate_name` attribute input --> $DIR/print-file-names-request-malformed-crate-name-1.rs:4:1 | LL | #![crate_name] | ^^^^^^^^^^^^^^ help: must be of the form: `#![crate_name = "name"]` - | - = note: for more information, visit <https://doc.rust-lang.org/reference/crates-and-source-files.html#the-crate_name-attribute> error: aborting due to 1 previous error +For more information about this error, try `rustc --explain E0539`. diff --git a/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name-2.rs b/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name-2.rs index 13c9d1e0027..1ac1208ee44 100644 --- a/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name-2.rs +++ b/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name-2.rs @@ -4,4 +4,4 @@ //@ compile-flags: --print=file-names #![crate_name = "this_one_is_okay"] -#![crate_name = concat!("this_one_is_not")] //~ ERROR malformed `crate_name` attribute input +#![crate_name = concat!("this_one_is_not")] //~ ERROR attribute value must be a literal diff --git a/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name-2.stderr b/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name-2.stderr index e9a5b58e4f9..1571521ff17 100644 --- a/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name-2.stderr +++ b/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name-2.stderr @@ -1,10 +1,8 @@ -error: malformed `crate_name` attribute input - --> $DIR/print-file-names-request-malformed-crate-name-2.rs:7:1 +error: attribute value must be a literal + --> $DIR/print-file-names-request-malformed-crate-name-2.rs:7:17 | LL | #![crate_name = concat!("this_one_is_not")] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#![crate_name = "name"]` - | - = note: for more information, visit <https://doc.rust-lang.org/reference/crates-and-source-files.html#the-crate_name-attribute> + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to 1 previous error diff --git a/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name.rs b/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name.rs index 5fe8bd7945f..6441017c665 100644 --- a/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name.rs +++ b/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name.rs @@ -2,4 +2,4 @@ // See also <https://github.com/rust-lang/rust/issues/122001>. //@ compile-flags: --print=file-names -#![crate_name = concat!("wrapped")] //~ ERROR malformed `crate_name` attribute input +#![crate_name = concat!("wrapped")] //~ ERROR attribute value must be a literal diff --git a/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name.stderr b/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name.stderr index e63525c6a5d..155e2e5a3fa 100644 --- a/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name.stderr +++ b/tests/ui/invalid-compile-flags/print-file-names-request-malformed-crate-name.stderr @@ -1,10 +1,8 @@ -error: malformed `crate_name` attribute input - --> $DIR/print-file-names-request-malformed-crate-name.rs:5:1 +error: attribute value must be a literal + --> $DIR/print-file-names-request-malformed-crate-name.rs:5:17 | LL | #![crate_name = concat!("wrapped")] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#![crate_name = "name"]` - | - = note: for more information, visit <https://doc.rust-lang.org/reference/crates-and-source-files.html#the-crate_name-attribute> + | ^^^^^^^^^^^^^^^^^^ error: aborting due to 1 previous error diff --git a/tests/ui/issues/issue-17351.stderr b/tests/ui/issues/issue-17351.stderr index e4c84ab9315..043d4ffc780 100644 --- a/tests/ui/issues/issue-17351.stderr +++ b/tests/ui/issues/issue-17351.stderr @@ -6,7 +6,7 @@ LL | trait Str { fn foo(&self) {} } | | | method in this trait | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/issues/issue-20055-box-trait.stderr b/tests/ui/issues/issue-20055-box-trait.stderr index db9d359e225..b1cbb2a5717 100644 --- a/tests/ui/issues/issue-20055-box-trait.stderr +++ b/tests/ui/issues/issue-20055-box-trait.stderr @@ -6,7 +6,7 @@ LL | trait Boo { LL | fn dummy(&self) { } | ^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/issues/issue-23485.stderr b/tests/ui/issues/issue-23485.stderr index ed2d2400d0d..7ad518e449b 100644 --- a/tests/ui/issues/issue-23485.stderr +++ b/tests/ui/issues/issue-23485.stderr @@ -7,7 +7,7 @@ LL | trait Iterator { LL | fn clone_first(mut self) -> Option<<Self::Item as Deref>::Target> where | ^^^^^^^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/issues/issue-28344.stderr b/tests/ui/issues/issue-28344.stderr index dfd4951f172..c23b5767302 100644 --- a/tests/ui/issues/issue-28344.stderr +++ b/tests/ui/issues/issue-28344.stderr @@ -6,7 +6,7 @@ LL | let x: u8 = BitXor::bitor(0 as u8, 0 as u8); | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | let x: u8 = <dyn BitXor>::bitor(0 as u8, 0 as u8); diff --git a/tests/ui/issues/issue-2989.stderr b/tests/ui/issues/issue-2989.stderr index 57181607cec..500ace8f275 100644 --- a/tests/ui/issues/issue-2989.stderr +++ b/tests/ui/issues/issue-2989.stderr @@ -4,7 +4,7 @@ warning: trait `methods` is never used LL | trait methods { | ^^^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/issues/issue-32782.rs b/tests/ui/issues/issue-32782.rs index e3aa9f3bf2f..1e99a25cec3 100644 --- a/tests/ui/issues/issue-32782.rs +++ b/tests/ui/issues/issue-32782.rs @@ -4,7 +4,9 @@ macro_rules! bar ( macro_rules! foo ( () => ( - #[allow_internal_unstable] //~ ERROR allow_internal_unstable side-steps + #[allow_internal_unstable()] + //~^ ERROR allow_internal_unstable side-steps + //~| ERROR `#[allow_internal_unstable]` attribute cannot be used on macro calls bar!(); ); ); diff --git a/tests/ui/issues/issue-32782.stderr b/tests/ui/issues/issue-32782.stderr index 830d83f6e57..96cd0489b2a 100644 --- a/tests/ui/issues/issue-32782.stderr +++ b/tests/ui/issues/issue-32782.stderr @@ -1,8 +1,8 @@ error[E0658]: allow_internal_unstable side-steps feature gating and stability checks --> $DIR/issue-32782.rs:7:9 | -LL | #[allow_internal_unstable] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | #[allow_internal_unstable()] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ... LL | foo!(); | ------ in this macro invocation @@ -11,6 +11,18 @@ LL | foo!(); = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date = note: this error originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info) -error: aborting due to 1 previous error +error: `#[allow_internal_unstable]` attribute cannot be used on macro calls + --> $DIR/issue-32782.rs:7:9 + | +LL | #[allow_internal_unstable()] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +... +LL | foo!(); + | ------ in this macro invocation + | + = help: `#[allow_internal_unstable]` can be applied to macro defs and functions + = note: this error originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/issues/issue-34503.stderr b/tests/ui/issues/issue-34503.stderr index 60d8d76a619..1877e20bbc1 100644 --- a/tests/ui/issues/issue-34503.stderr +++ b/tests/ui/issues/issue-34503.stderr @@ -8,7 +8,7 @@ LL | fn foo(&self) where (T, Option<T>): Ord {} LL | fn bar(&self, x: &Option<T>) -> bool | ^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/issues/issue-39367.stderr b/tests/ui/issues/issue-39367.stderr index 65076375e96..1592b8b6672 100644 --- a/tests/ui/issues/issue-39367.stderr +++ b/tests/ui/issues/issue-39367.stderr @@ -11,7 +11,7 @@ LL | | }); | = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html> = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives - = note: `#[warn(static_mut_refs)]` on by default + = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/issues/issue-45801.stderr b/tests/ui/issues/issue-45801.stderr index 940c1865fa3..9f7c822f165 100644 --- a/tests/ui/issues/issue-45801.stderr +++ b/tests/ui/issues/issue-45801.stderr @@ -2,7 +2,7 @@ error[E0277]: the trait bound `Params: Plugin<i32>` is not satisfied --> $DIR/issue-45801.rs:21:9 | LL | req.get_ref::<Params>(); - | ^^^^^^^ the trait `Plugin<i32>` is not implemented for `Params` + | ^^^^^^^ unsatisfied trait bound | = help: the trait `Plugin<i32>` is not implemented for `Params` but trait `Plugin<Foo>` is implemented for it diff --git a/tests/ui/issues/issue-46311.rs b/tests/ui/issues/issue-46311.rs index 1233a49c582..24435665501 100644 --- a/tests/ui/issues/issue-46311.rs +++ b/tests/ui/issues/issue-46311.rs @@ -1,4 +1,4 @@ fn main() { - 'break: loop { //~ ERROR invalid label name `'break` + 'break: loop { //~ ERROR labels cannot use keyword names } } diff --git a/tests/ui/issues/issue-46311.stderr b/tests/ui/issues/issue-46311.stderr index 86a3602899a..f040ba2c026 100644 --- a/tests/ui/issues/issue-46311.stderr +++ b/tests/ui/issues/issue-46311.stderr @@ -1,4 +1,4 @@ -error: invalid label name `'break` +error: labels cannot use keyword names --> $DIR/issue-46311.rs:2:5 | LL | 'break: loop { diff --git a/tests/ui/issues/issue-47094.stderr b/tests/ui/issues/issue-47094.stderr index 1c6693403b8..da414d68214 100644 --- a/tests/ui/issues/issue-47094.stderr +++ b/tests/ui/issues/issue-47094.stderr @@ -6,7 +6,7 @@ LL | #[repr(C, u8)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/68585> - = note: `#[deny(conflicting_repr_hints)]` on by default + = note: `#[deny(conflicting_repr_hints)]` (part of `#[deny(future_incompatible)]`) on by default error[E0566]: conflicting representation hints --> $DIR/issue-47094.rs:8:8 @@ -32,7 +32,7 @@ LL | #[repr(C, u8)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/68585> - = note: `#[deny(conflicting_repr_hints)]` on by default + = note: `#[deny(conflicting_repr_hints)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error[E0566]: conflicting representation hints @@ -46,5 +46,5 @@ LL | #[repr(u8)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/68585> - = note: `#[deny(conflicting_repr_hints)]` on by default + = note: `#[deny(conflicting_repr_hints)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/issues/issue-58734.stderr b/tests/ui/issues/issue-58734.stderr index c246d1fc111..2336a94f150 100644 --- a/tests/ui/issues/issue-58734.stderr +++ b/tests/ui/issues/issue-58734.stderr @@ -6,7 +6,7 @@ LL | Trait::nonexistent(()); | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | <dyn Trait>::nonexistent(()); diff --git a/tests/ui/issues/issue-72278.stderr b/tests/ui/issues/issue-72278.stderr index 5468837a305..91efada3d8d 100644 --- a/tests/ui/issues/issue-72278.stderr +++ b/tests/ui/issues/issue-72278.stderr @@ -9,7 +9,7 @@ LL | S.func::<'a, U>() | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868> - = note: `#[warn(late_bound_lifetime_arguments)]` on by default + = note: `#[warn(late_bound_lifetime_arguments)]` (part of `#[warn(future_incompatible)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/issues/issue-7575.stderr b/tests/ui/issues/issue-7575.stderr deleted file mode 100644 index 2f987d19c80..00000000000 --- a/tests/ui/issues/issue-7575.stderr +++ /dev/null @@ -1,10 +0,0 @@ -warning: trait `Foo` is never used - --> $DIR/issue-7575.rs:3:7 - | -LL | trait Foo { - | ^^^ - | - = note: `#[warn(dead_code)]` on by default - -warning: 1 warning emitted - diff --git a/tests/ui/issues/issue-77218/issue-77218-2.fixed b/tests/ui/issues/issue-77218/issue-77218-2.fixed deleted file mode 100644 index 98d79b5da65..00000000000 --- a/tests/ui/issues/issue-77218/issue-77218-2.fixed +++ /dev/null @@ -1,6 +0,0 @@ -//@ run-rustfix -fn main() { - let value = [7u8]; - while let Some(0) = value.get(0) { //~ ERROR invalid left-hand side of assignment - } -} diff --git a/tests/ui/issues/issue-77218/issue-77218-2.rs b/tests/ui/issues/issue-77218/issue-77218-2.rs deleted file mode 100644 index 3be38f8f721..00000000000 --- a/tests/ui/issues/issue-77218/issue-77218-2.rs +++ /dev/null @@ -1,6 +0,0 @@ -//@ run-rustfix -fn main() { - let value = [7u8]; - while Some(0) = value.get(0) { //~ ERROR invalid left-hand side of assignment - } -} diff --git a/tests/ui/issues/issue-77218/issue-77218-2.stderr b/tests/ui/issues/issue-77218/issue-77218-2.stderr deleted file mode 100644 index dfed0b6e67e..00000000000 --- a/tests/ui/issues/issue-77218/issue-77218-2.stderr +++ /dev/null @@ -1,16 +0,0 @@ -error[E0070]: invalid left-hand side of assignment - --> $DIR/issue-77218-2.rs:4:19 - | -LL | while Some(0) = value.get(0) { - | - ^ - | | - | cannot assign to this expression - | -help: you might have meant to use pattern destructuring - | -LL | while let Some(0) = value.get(0) { - | +++ - -error: aborting due to 1 previous error - -For more information about this error, try `rustc --explain E0070`. diff --git a/tests/ui/issues/issue-7899.rs b/tests/ui/issues/issue-7899.rs deleted file mode 100644 index 4b69f3e3d89..00000000000 --- a/tests/ui/issues/issue-7899.rs +++ /dev/null @@ -1,10 +0,0 @@ -//@ run-pass -#![allow(unused_variables)] -//@ aux-build:issue-7899.rs - - -extern crate issue_7899 as testcrate; - -fn main() { - let f = testcrate::V2(1.0f32, 2.0f32); -} diff --git a/tests/ui/issues/issue-8044.rs b/tests/ui/issues/issue-8044.rs deleted file mode 100644 index 3c10bbca634..00000000000 --- a/tests/ui/issues/issue-8044.rs +++ /dev/null @@ -1,10 +0,0 @@ -//@ run-pass -//@ aux-build:issue-8044.rs - - -extern crate issue_8044 as minimal; -use minimal::{BTree, leaf}; - -pub fn main() { - BTree::<isize> { node: leaf(1) }; -} diff --git a/tests/ui/issues/issue-8401.rs b/tests/ui/issues/issue-8401.rs deleted file mode 100644 index 1df63516fb0..00000000000 --- a/tests/ui/issues/issue-8401.rs +++ /dev/null @@ -1,7 +0,0 @@ -//@ run-pass -//@ aux-build:issue-8401.rs - - -extern crate issue_8401; - -pub fn main() {} diff --git a/tests/ui/issues/issue-9123.rs b/tests/ui/issues/issue-9123.rs deleted file mode 100644 index bbf6c13341c..00000000000 --- a/tests/ui/issues/issue-9123.rs +++ /dev/null @@ -1,7 +0,0 @@ -//@ run-pass -//@ aux-build:issue-9123.rs - - -extern crate issue_9123; - -pub fn main() {} diff --git a/tests/ui/iterators/into-iter-on-arrays-2018.stderr b/tests/ui/iterators/into-iter-on-arrays-2018.stderr index 8818ef80f76..6419d779b4f 100644 --- a/tests/ui/iterators/into-iter-on-arrays-2018.stderr +++ b/tests/ui/iterators/into-iter-on-arrays-2018.stderr @@ -6,7 +6,7 @@ LL | let _: Iter<'_, i32> = array.into_iter(); | = warning: this changes meaning in Rust 2021 = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html> - = note: `#[warn(array_into_iter)]` on by default + = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: use `.iter()` instead of `.into_iter()` to avoid ambiguity | LL - let _: Iter<'_, i32> = array.into_iter(); diff --git a/tests/ui/iterators/into-iter-on-arrays-lint.stderr b/tests/ui/iterators/into-iter-on-arrays-lint.stderr index a9dfa5819c1..a3eb3133a00 100644 --- a/tests/ui/iterators/into-iter-on-arrays-lint.stderr +++ b/tests/ui/iterators/into-iter-on-arrays-lint.stderr @@ -6,7 +6,7 @@ LL | small.into_iter(); | = warning: this changes meaning in Rust 2021 = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html> - = note: `#[warn(array_into_iter)]` on by default + = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: use `.iter()` instead of `.into_iter()` to avoid ambiguity | LL - small.into_iter(); diff --git a/tests/ui/iterators/into-iter-on-boxed-slices-2021.stderr b/tests/ui/iterators/into-iter-on-boxed-slices-2021.stderr index a0c1432756d..d2df6a2f40c 100644 --- a/tests/ui/iterators/into-iter-on-boxed-slices-2021.stderr +++ b/tests/ui/iterators/into-iter-on-boxed-slices-2021.stderr @@ -6,7 +6,7 @@ LL | let _: Iter<'_, i32> = boxed_slice.into_iter(); | = warning: this changes meaning in Rust 2024 = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/intoiterator-box-slice.html> - = note: `#[warn(boxed_slice_into_iter)]` on by default + = note: `#[warn(boxed_slice_into_iter)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `.iter()` instead of `.into_iter()` to avoid ambiguity | LL - let _: Iter<'_, i32> = boxed_slice.into_iter(); diff --git a/tests/ui/iterators/into-iter-on-boxed-slices-lint.stderr b/tests/ui/iterators/into-iter-on-boxed-slices-lint.stderr index 377455d6a26..670a741ab8b 100644 --- a/tests/ui/iterators/into-iter-on-boxed-slices-lint.stderr +++ b/tests/ui/iterators/into-iter-on-boxed-slices-lint.stderr @@ -6,7 +6,7 @@ LL | boxed.into_iter(); | = warning: this changes meaning in Rust 2024 = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/intoiterator-box-slice.html> - = note: `#[warn(boxed_slice_into_iter)]` on by default + = note: `#[warn(boxed_slice_into_iter)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `.iter()` instead of `.into_iter()` to avoid ambiguity | LL - boxed.into_iter(); diff --git a/tests/ui/issues/issue-81584.fixed b/tests/ui/iterators/iterator-scope-collect-suggestion-81584.fixed index c3d33a1b4f8..0e3d48fe27d 100644 --- a/tests/ui/issues/issue-81584.fixed +++ b/tests/ui/iterators/iterator-scope-collect-suggestion-81584.fixed @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/81584 //@ run-rustfix fn main() { let _ = vec![vec![0, 1], vec![2]] diff --git a/tests/ui/issues/issue-81584.rs b/tests/ui/iterators/iterator-scope-collect-suggestion-81584.rs index 27db73aaa2c..3fba39517fc 100644 --- a/tests/ui/issues/issue-81584.rs +++ b/tests/ui/iterators/iterator-scope-collect-suggestion-81584.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/81584 //@ run-rustfix fn main() { let _ = vec![vec![0, 1], vec![2]] diff --git a/tests/ui/issues/issue-81584.stderr b/tests/ui/iterators/iterator-scope-collect-suggestion-81584.stderr index eb97916ad75..e180183e7e3 100644 --- a/tests/ui/issues/issue-81584.stderr +++ b/tests/ui/iterators/iterator-scope-collect-suggestion-81584.stderr @@ -1,5 +1,5 @@ error[E0515]: cannot return value referencing function parameter `y` - --> $DIR/issue-81584.rs:5:22 + --> $DIR/iterator-scope-collect-suggestion-81584.rs:6:22 | LL | .map(|y| y.iter().map(|x| x + 1)) | -^^^^^^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/kindck/kindck-copy.stderr b/tests/ui/kindck/kindck-copy.stderr index aee2aa98a60..f5623ddd4f7 100644 --- a/tests/ui/kindck/kindck-copy.stderr +++ b/tests/ui/kindck/kindck-copy.stderr @@ -120,8 +120,13 @@ error[E0277]: the trait bound `MyNoncopyStruct: Copy` is not satisfied --> $DIR/kindck-copy.rs:64:19 | LL | assert_copy::<MyNoncopyStruct>(); - | ^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `MyNoncopyStruct` + | ^^^^^^^^^^^^^^^ unsatisfied trait bound | +help: the trait `Copy` is not implemented for `MyNoncopyStruct` + --> $DIR/kindck-copy.rs:15:1 + | +LL | struct MyNoncopyStruct { + | ^^^^^^^^^^^^^^^^^^^^^^ note: required by a bound in `assert_copy` --> $DIR/kindck-copy.rs:5:18 | diff --git a/tests/ui/label/label-static.rs b/tests/ui/label/label-static.rs index 95e764d0187..ef06658506a 100644 --- a/tests/ui/label/label-static.rs +++ b/tests/ui/label/label-static.rs @@ -1,5 +1,5 @@ fn main() { - 'static: loop { //~ ERROR invalid label name `'static` - break 'static //~ ERROR invalid label name `'static` + 'static: loop { //~ ERROR labels cannot use keyword names + break 'static //~ ERROR labels cannot use keyword names } } diff --git a/tests/ui/label/label-static.stderr b/tests/ui/label/label-static.stderr index 1d3251d1b5f..f6ae8b44c08 100644 --- a/tests/ui/label/label-static.stderr +++ b/tests/ui/label/label-static.stderr @@ -1,10 +1,10 @@ -error: invalid label name `'static` +error: labels cannot use keyword names --> $DIR/label-static.rs:2:5 | LL | 'static: loop { | ^^^^^^^ -error: invalid label name `'static` +error: labels cannot use keyword names --> $DIR/label-static.rs:3:15 | LL | break 'static diff --git a/tests/ui/label/label-underscore.rs b/tests/ui/label/label-underscore.rs index de67f3d2c3e..8f1f90fe7c0 100644 --- a/tests/ui/label/label-underscore.rs +++ b/tests/ui/label/label-underscore.rs @@ -1,5 +1,5 @@ fn main() { - '_: loop { //~ ERROR invalid label name `'_` - break '_ //~ ERROR invalid label name `'_` + '_: loop { //~ ERROR labels cannot use keyword names + break '_ //~ ERROR labels cannot use keyword names } } diff --git a/tests/ui/label/label-underscore.stderr b/tests/ui/label/label-underscore.stderr index 4558ec4cb41..c0eb178d0f0 100644 --- a/tests/ui/label/label-underscore.stderr +++ b/tests/ui/label/label-underscore.stderr @@ -1,10 +1,10 @@ -error: invalid label name `'_` +error: labels cannot use keyword names --> $DIR/label-underscore.rs:2:5 | LL | '_: loop { | ^^ -error: invalid label name `'_` +error: labels cannot use keyword names --> $DIR/label-underscore.rs:3:15 | LL | break '_ diff --git a/tests/ui/lang-items/issue-83471.stderr b/tests/ui/lang-items/issue-83471.stderr index e913c0bf10f..28fa552fbeb 100644 --- a/tests/ui/lang-items/issue-83471.stderr +++ b/tests/ui/lang-items/issue-83471.stderr @@ -48,7 +48,7 @@ LL | fn call(export_name); | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686> - = note: `#[warn(anonymous_parameters)]` on by default + = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default error[E0718]: `fn` lang item must be applied to a trait with 1 generic argument --> $DIR/issue-83471.rs:19:1 diff --git a/tests/ui/layout/base-layout-is-sized-ice-123078.rs b/tests/ui/layout/base-layout-is-sized-ice-123078.rs index b1c33e15075..bbe32b2022a 100644 --- a/tests/ui/layout/base-layout-is-sized-ice-123078.rs +++ b/tests/ui/layout/base-layout-is-sized-ice-123078.rs @@ -8,7 +8,9 @@ struct S { } const C: S = unsafe { std::mem::transmute(()) }; -//~^ ERROR cannot transmute between types of different sizes, or dependently-sized types +//~^ ERROR the type `S` has an unknown layout +//~| ERROR cannot transmute between types of different sizes, or dependently-sized types + const _: [(); { C; 0 diff --git a/tests/ui/layout/base-layout-is-sized-ice-123078.stderr b/tests/ui/layout/base-layout-is-sized-ice-123078.stderr index d8743d4e6d6..d6cebd3e7ae 100644 --- a/tests/ui/layout/base-layout-is-sized-ice-123078.stderr +++ b/tests/ui/layout/base-layout-is-sized-ice-123078.stderr @@ -16,6 +16,12 @@ help: the `Box` type always has a statically known size and allocates its conten LL | a: Box<[u8]>, | ++++ + +error[E0080]: the type `S` has an unknown layout + --> $DIR/base-layout-is-sized-ice-123078.rs:10:1 + | +LL | const C: S = unsafe { std::mem::transmute(()) }; + | ^^^^^^^^^^ evaluation of `C` failed here + error[E0512]: cannot transmute between types of different sizes, or dependently-sized types --> $DIR/base-layout-is-sized-ice-123078.rs:10:23 | @@ -25,7 +31,7 @@ LL | const C: S = unsafe { std::mem::transmute(()) }; = note: source type: `()` (0 bits) = note: target type: `S` (the type `S` has an unknown layout) -error: aborting due to 2 previous errors +error: aborting due to 3 previous errors -Some errors have detailed explanations: E0277, E0512. -For more information about an error, try `rustc --explain E0277`. +Some errors have detailed explanations: E0080, E0277, E0512. +For more information about an error, try `rustc --explain E0080`. diff --git a/tests/ui/layout/normalization-failure.rs b/tests/ui/layout/normalization-failure.rs index c0f8710c03c..a0195224d8c 100644 --- a/tests/ui/layout/normalization-failure.rs +++ b/tests/ui/layout/normalization-failure.rs @@ -49,8 +49,8 @@ fn check<T: Project1>() { unsafe { std::mem::transmute::<_, ()>(opaque::<T>().get()); //~^ ERROR: cannot transmute - //~| NOTE: (unable to determine layout for `<impl Project2 as Project2>::Assoc2` because `<impl Project2 as Project2>::Assoc2` cannot be normalized) - //~| NOTE: (0 bits) + //~| NOTE: source type: `{type error}` (the type has an unknown layout) + //~| NOTE: target type: `()` (0 bits) } } diff --git a/tests/ui/layout/normalization-failure.stderr b/tests/ui/layout/normalization-failure.stderr index 5fe38d4403a..1c78fc6ac41 100644 --- a/tests/ui/layout/normalization-failure.stderr +++ b/tests/ui/layout/normalization-failure.stderr @@ -4,7 +4,7 @@ error[E0512]: cannot transmute between types of different sizes, or dependently- LL | std::mem::transmute::<_, ()>(opaque::<T>().get()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = note: source type: `<impl Project2 as Project2>::Assoc2` (unable to determine layout for `<impl Project2 as Project2>::Assoc2` because `<impl Project2 as Project2>::Assoc2` cannot be normalized) + = note: source type: `{type error}` (the type has an unknown layout) = note: target type: `()` (0 bits) error: aborting due to 1 previous error diff --git a/tests/ui/layout/transmute-to-tail-with-err.rs b/tests/ui/layout/transmute-to-tail-with-err.rs index 6753ce15ed1..614c1ac756e 100644 --- a/tests/ui/layout/transmute-to-tail-with-err.rs +++ b/tests/ui/layout/transmute-to-tail-with-err.rs @@ -5,4 +5,5 @@ struct Bar(Box<dyn Trait<T>>); fn main() { let x: Bar = unsafe { std::mem::transmute(()) }; + //~^ ERROR cannot transmute between types of different size } diff --git a/tests/ui/layout/transmute-to-tail-with-err.stderr b/tests/ui/layout/transmute-to-tail-with-err.stderr index 433c6b38d0b..cff40812717 100644 --- a/tests/ui/layout/transmute-to-tail-with-err.stderr +++ b/tests/ui/layout/transmute-to-tail-with-err.stderr @@ -9,6 +9,16 @@ help: you might be missing a type parameter LL | struct Bar<T>(Box<dyn Trait<T>>); | +++ -error: aborting due to 1 previous error +error[E0512]: cannot transmute between types of different sizes, or dependently-sized types + --> $DIR/transmute-to-tail-with-err.rs:7:27 + | +LL | let x: Bar = unsafe { std::mem::transmute(()) }; + | ^^^^^^^^^^^^^^^^^^^ + | + = note: source type: `()` (0 bits) + = note: target type: `Bar` (the type has an unknown layout) + +error: aborting due to 2 previous errors -For more information about this error, try `rustc --explain E0412`. +Some errors have detailed explanations: E0412, E0512. +For more information about an error, try `rustc --explain E0412`. diff --git a/tests/ui/lifetimes/issue-95023.stderr b/tests/ui/lifetimes/issue-95023.stderr index dffa033fb17..013bc51ff78 100644 --- a/tests/ui/lifetimes/issue-95023.stderr +++ b/tests/ui/lifetimes/issue-95023.stderr @@ -46,7 +46,11 @@ error[E0277]: expected a `FnMut(&isize)` closure, found `Error` LL | impl Fn(&isize) for Error { | ^^^^^ expected an `FnMut(&isize)` closure, found `Error` | - = help: the trait `FnMut(&isize)` is not implemented for `Error` +help: the trait `FnMut(&isize)` is not implemented for `Error` + --> $DIR/issue-95023.rs:2:1 + | +LL | struct Error(ErrorKind); + | ^^^^^^^^^^^^ note: required by a bound in `Fn` --> $SRC_DIR/core/src/ops/function.rs:LL:COL diff --git a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/example-from-issue48686.stderr b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/example-from-issue48686.stderr index 5a7a5a6ebf9..2b7d6a6da27 100644 --- a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/example-from-issue48686.stderr +++ b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/example-from-issue48686.stderr @@ -1,8 +1,8 @@ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/example-from-issue48686.rs:6:21 + --> $DIR/example-from-issue48686.rs:6:50 | LL | pub fn get_mut(&'static self, x: &mut u8) -> &mut u8 { - | ^^^^^^^ ------- the same lifetime is elided here + | ------- ^^^^^^^ the same lifetime is elided here | | | the lifetime is named here | diff --git a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/missing-lifetime-kind.stderr b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/missing-lifetime-kind.stderr index af56a0a0ea5..c4d6e78d787 100644 --- a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/missing-lifetime-kind.stderr +++ b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/missing-lifetime-kind.stderr @@ -1,8 +1,8 @@ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/missing-lifetime-kind.rs:3:22 + --> $DIR/missing-lifetime-kind.rs:3:32 | LL | fn ampersand<'a>(x: &'a u8) -> &u8 { - | ^^ --- the same lifetime is elided here + | -- ^^^ the same lifetime is elided here | | | the lifetime is named here | @@ -18,10 +18,10 @@ LL | fn ampersand<'a>(x: &'a u8) -> &'a u8 { | ++ error: hiding a lifetime that's named elsewhere is confusing - --> $DIR/missing-lifetime-kind.rs:10:21 + --> $DIR/missing-lifetime-kind.rs:10:31 | LL | fn brackets<'a>(x: &'a u8) -> Brackets { - | ^^ -------- the same lifetime is hidden here + | -- ^^^^^^^^ the same lifetime is hidden here | | | the lifetime is named here | @@ -32,10 +32,10 @@ LL | fn brackets<'a>(x: &'a u8) -> Brackets<'a> { | ++++ error: hiding a lifetime that's named elsewhere is confusing - --> $DIR/missing-lifetime-kind.rs:17:18 + --> $DIR/missing-lifetime-kind.rs:17:28 | LL | fn comma<'a>(x: &'a u8) -> Comma<u8> { - | ^^ --------- the same lifetime is hidden here + | -- ^^^^^^^^^ the same lifetime is hidden here | | | the lifetime is named here | @@ -46,10 +46,10 @@ LL | fn comma<'a>(x: &'a u8) -> Comma<'a, u8> { | +++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/missing-lifetime-kind.rs:22:23 + --> $DIR/missing-lifetime-kind.rs:22:34 | LL | fn underscore<'a>(x: &'a u8) -> &'_ u8 { - | ^^ -- the same lifetime is elided here + | -- ^^ the same lifetime is elided here | | | the lifetime is named here | diff --git a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/not-tied-to-crate.stderr b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/not-tied-to-crate.stderr index cf0a29678fa..28de809faab 100644 --- a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/not-tied-to-crate.stderr +++ b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/not-tied-to-crate.stderr @@ -1,8 +1,8 @@ warning: eliding a lifetime that's named elsewhere is confusing - --> $DIR/not-tied-to-crate.rs:8:16 + --> $DIR/not-tied-to-crate.rs:8:31 | LL | fn bar(x: &'static u8) -> &u8 { - | ^^^^^^^ --- the same lifetime is elided here + | ------- ^^^ the same lifetime is elided here | | | the lifetime is named here | @@ -18,10 +18,10 @@ LL | fn bar(x: &'static u8) -> &'static u8 { | +++++++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/not-tied-to-crate.rs:14:16 + --> $DIR/not-tied-to-crate.rs:14:31 | LL | fn baz(x: &'static u8) -> &u8 { - | ^^^^^^^ --- the same lifetime is elided here + | ------- ^^^ the same lifetime is elided here | | | the lifetime is named here | diff --git a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/static.stderr b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/static.stderr index d60bec6f7e4..5f21a2877a7 100644 --- a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/static.stderr +++ b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/static.stderr @@ -1,8 +1,8 @@ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/static.rs:16:18 + --> $DIR/static.rs:16:33 | LL | fn ampersand(x: &'static u8) -> &u8 { - | ^^^^^^^ --- the same lifetime is elided here + | ------- ^^^ the same lifetime is elided here | | | the lifetime is named here | @@ -18,10 +18,10 @@ LL | fn ampersand(x: &'static u8) -> &'static u8 { | +++++++ error: hiding a lifetime that's named elsewhere is confusing - --> $DIR/static.rs:23:17 + --> $DIR/static.rs:23:32 | LL | fn brackets(x: &'static u8) -> Brackets { - | ^^^^^^^ -------- the same lifetime is hidden here + | ------- ^^^^^^^^ the same lifetime is hidden here | | | the lifetime is named here | @@ -32,10 +32,10 @@ LL | fn brackets(x: &'static u8) -> Brackets<'static> { | +++++++++ error: hiding a lifetime that's named elsewhere is confusing - --> $DIR/static.rs:30:14 + --> $DIR/static.rs:30:29 | LL | fn comma(x: &'static u8) -> Comma<u8> { - | ^^^^^^^ --------- the same lifetime is hidden here + | ------- ^^^^^^^^^ the same lifetime is hidden here | | | the lifetime is named here | @@ -46,10 +46,10 @@ LL | fn comma(x: &'static u8) -> Comma<'static, u8> { | ++++++++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/static.rs:35:19 + --> $DIR/static.rs:35:35 | LL | fn underscore(x: &'static u8) -> &'_ u8 { - | ^^^^^^^ -- the same lifetime is elided here + | ------- ^^ the same lifetime is elided here | | | the lifetime is named here | diff --git a/tests/ui/lifetimes/mismatched-lifetime-syntaxes.rs b/tests/ui/lifetimes/mismatched-lifetime-syntaxes.rs index f6260c47202..f404c4163a9 100644 --- a/tests/ui/lifetimes/mismatched-lifetime-syntaxes.rs +++ b/tests/ui/lifetimes/mismatched-lifetime-syntaxes.rs @@ -36,8 +36,8 @@ fn explicit_bound_path_to_implicit_path<'a>(v: ContainsLifetime<'a>) -> Contains fn explicit_bound_path_to_explicit_anonymous_path<'a>( v: ContainsLifetime<'a>, - //~^ ERROR eliding a lifetime that's named elsewhere is confusing ) -> ContainsLifetime<'_> { + //~^ ERROR eliding a lifetime that's named elsewhere is confusing v } @@ -188,8 +188,8 @@ mod impl_trait { fn explicit_bound_path_to_impl_trait_precise_capture<'a>( v: ContainsLifetime<'a>, - //~^ ERROR eliding a lifetime that's named elsewhere is confusing ) -> impl FnOnce() + use<'_> { + //~^ ERROR eliding a lifetime that's named elsewhere is confusing move || _ = v } } @@ -208,8 +208,8 @@ mod dyn_trait { fn explicit_bound_path_to_dyn_trait_bound<'a>( v: ContainsLifetime<'a>, - //~^ ERROR hiding a lifetime that's named elsewhere is confusing ) -> Box<dyn Iterator<Item = ContainsLifetime> + '_> { + //~^ ERROR hiding a lifetime that's named elsewhere is confusing Box::new(iter::once(v)) } } diff --git a/tests/ui/lifetimes/mismatched-lifetime-syntaxes.stderr b/tests/ui/lifetimes/mismatched-lifetime-syntaxes.stderr index 20b7561c594..89768fc764a 100644 --- a/tests/ui/lifetimes/mismatched-lifetime-syntaxes.stderr +++ b/tests/ui/lifetimes/mismatched-lifetime-syntaxes.stderr @@ -1,8 +1,8 @@ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:10:47 + --> $DIR/mismatched-lifetime-syntaxes.rs:10:57 | LL | fn explicit_bound_ref_to_implicit_ref<'a>(v: &'a u8) -> &u8 { - | ^^ --- the same lifetime is elided here + | -- ^^^ the same lifetime is elided here | | | the lifetime is named here | @@ -18,10 +18,10 @@ LL | fn explicit_bound_ref_to_implicit_ref<'a>(v: &'a u8) -> &'a u8 { | ++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:15:57 + --> $DIR/mismatched-lifetime-syntaxes.rs:15:68 | LL | fn explicit_bound_ref_to_explicit_anonymous_ref<'a>(v: &'a u8) -> &'_ u8 { - | ^^ -- the same lifetime is elided here + | -- ^^ the same lifetime is elided here | | | the lifetime is named here | @@ -36,7 +36,7 @@ error: hiding a lifetime that's elided elsewhere is confusing --> $DIR/mismatched-lifetime-syntaxes.rs:22:48 | LL | fn implicit_path_to_explicit_anonymous_path(v: ContainsLifetime) -> ContainsLifetime<'_> { - | ^^^^^^^^^^^^^^^^ -- the same lifetime is elided here + | ^^^^^^^^^^^^^^^^ ^^ the same lifetime is elided here | | | the lifetime is hidden here | @@ -50,7 +50,7 @@ error: hiding a lifetime that's elided elsewhere is confusing --> $DIR/mismatched-lifetime-syntaxes.rs:27:65 | LL | fn explicit_anonymous_path_to_implicit_path(v: ContainsLifetime<'_>) -> ContainsLifetime { - | ^^ ---------------- the same lifetime is hidden here + | ^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here | | | the lifetime is elided here | @@ -61,10 +61,10 @@ LL | fn explicit_anonymous_path_to_implicit_path(v: ContainsLifetime<'_>) -> Con | ++++ error: hiding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:32:65 + --> $DIR/mismatched-lifetime-syntaxes.rs:32:73 | LL | fn explicit_bound_path_to_implicit_path<'a>(v: ContainsLifetime<'a>) -> ContainsLifetime { - | ^^ ---------------- the same lifetime is hidden here + | -- ^^^^^^^^^^^^^^^^ the same lifetime is hidden here | | | the lifetime is named here | @@ -75,13 +75,12 @@ LL | fn explicit_bound_path_to_implicit_path<'a>(v: ContainsLifetime<'a>) -> Con | ++++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:38:25 + --> $DIR/mismatched-lifetime-syntaxes.rs:39:23 | LL | v: ContainsLifetime<'a>, - | ^^ the lifetime is named here -LL | + | -- the lifetime is named here LL | ) -> ContainsLifetime<'_> { - | -- the same lifetime is elided here + | ^^ the same lifetime is elided here | = help: the same lifetime is referred to in inconsistent ways, making the signature confusing help: consistently use `'a` @@ -94,7 +93,7 @@ error: hiding a lifetime that's elided elsewhere is confusing --> $DIR/mismatched-lifetime-syntaxes.rs:46:37 | LL | fn implicit_ref_to_implicit_path(v: &u8) -> ContainsLifetime { - | ^^^ ---------------- the same lifetime is hidden here + | ^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here | | | the lifetime is elided here | @@ -108,7 +107,7 @@ error: hiding a lifetime that's elided elsewhere is confusing --> $DIR/mismatched-lifetime-syntaxes.rs:51:48 | LL | fn explicit_anonymous_ref_to_implicit_path(v: &'_ u8) -> ContainsLifetime { - | ^^ ---------------- the same lifetime is hidden here + | ^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here | | | the lifetime is elided here | @@ -119,10 +118,10 @@ LL | fn explicit_anonymous_ref_to_implicit_path(v: &'_ u8) -> ContainsLifetime<' | ++++ error: hiding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:56:48 + --> $DIR/mismatched-lifetime-syntaxes.rs:56:58 | LL | fn explicit_bound_ref_to_implicit_path<'a>(v: &'a u8) -> ContainsLifetime { - | ^^ ---------------- the same lifetime is hidden here + | -- ^^^^^^^^^^^^^^^^ the same lifetime is hidden here | | | the lifetime is named here | @@ -133,10 +132,10 @@ LL | fn explicit_bound_ref_to_implicit_path<'a>(v: &'a u8) -> ContainsLifetime<' | ++++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:61:58 + --> $DIR/mismatched-lifetime-syntaxes.rs:61:85 | LL | fn explicit_bound_ref_to_explicit_anonymous_path<'a>(v: &'a u8) -> ContainsLifetime<'_> { - | ^^ -- the same lifetime is elided here + | -- ^^ the same lifetime is elided here | | | the lifetime is named here | @@ -151,7 +150,7 @@ error: hiding a lifetime that's elided elsewhere is confusing --> $DIR/mismatched-lifetime-syntaxes.rs:68:37 | LL | fn implicit_path_to_implicit_ref(v: ContainsLifetime) -> &u8 { - | ^^^^^^^^^^^^^^^^ --- the same lifetime is elided here + | ^^^^^^^^^^^^^^^^ ^^^ the same lifetime is elided here | | | the lifetime is hidden here | @@ -165,7 +164,7 @@ error: hiding a lifetime that's elided elsewhere is confusing --> $DIR/mismatched-lifetime-syntaxes.rs:73:47 | LL | fn implicit_path_to_explicit_anonymous_ref(v: ContainsLifetime) -> &'_ u8 { - | ^^^^^^^^^^^^^^^^ -- the same lifetime is elided here + | ^^^^^^^^^^^^^^^^ ^^ the same lifetime is elided here | | | the lifetime is hidden here | @@ -176,10 +175,10 @@ LL | fn implicit_path_to_explicit_anonymous_ref(v: ContainsLifetime<'_>) -> &'_ | ++++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:78:64 + --> $DIR/mismatched-lifetime-syntaxes.rs:78:72 | LL | fn explicit_bound_path_to_implicit_ref<'a>(v: ContainsLifetime<'a>) -> &u8 { - | ^^ --- the same lifetime is elided here + | -- ^^^ the same lifetime is elided here | | | the lifetime is named here | @@ -190,10 +189,10 @@ LL | fn explicit_bound_path_to_implicit_ref<'a>(v: ContainsLifetime<'a>) -> &'a | ++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:83:74 + --> $DIR/mismatched-lifetime-syntaxes.rs:83:83 | LL | fn explicit_bound_path_to_explicit_anonymous_ref<'a>(v: ContainsLifetime<'a>) -> &'_ u8 { - | ^^ -- the same lifetime is elided here + | -- ^^ the same lifetime is elided here | | | the lifetime is named here | @@ -205,10 +204,10 @@ LL + fn explicit_bound_path_to_explicit_anonymous_ref<'a>(v: ContainsLifetime<'a | error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:89:55 + --> $DIR/mismatched-lifetime-syntaxes.rs:89:67 | LL | fn method_explicit_bound_ref_to_implicit_ref<'a>(&'a self) -> &u8 { - | ^^ --- the same lifetime is elided here + | -- ^^^ the same lifetime is elided here | | | the lifetime is named here | @@ -219,10 +218,10 @@ LL | fn method_explicit_bound_ref_to_implicit_ref<'a>(&'a self) -> &'a u8 { | ++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:94:65 + --> $DIR/mismatched-lifetime-syntaxes.rs:94:78 | LL | fn method_explicit_bound_ref_to_explicit_anonymous_ref<'a>(&'a self) -> &'_ u8 { - | ^^ -- the same lifetime is elided here + | -- ^^ the same lifetime is elided here | | | the lifetime is named here | @@ -237,7 +236,7 @@ error: hiding a lifetime that's elided elsewhere is confusing --> $DIR/mismatched-lifetime-syntaxes.rs:101:56 | LL | fn method_explicit_anonymous_ref_to_implicit_path(&'_ self) -> ContainsLifetime { - | ^^ ---------------- the same lifetime is hidden here + | ^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here | | | the lifetime is elided here | @@ -248,10 +247,10 @@ LL | fn method_explicit_anonymous_ref_to_implicit_path(&'_ self) -> Contains | ++++ error: hiding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:106:56 + --> $DIR/mismatched-lifetime-syntaxes.rs:106:68 | LL | fn method_explicit_bound_ref_to_implicit_path<'a>(&'a self) -> ContainsLifetime { - | ^^ ---------------- the same lifetime is hidden here + | -- ^^^^^^^^^^^^^^^^ the same lifetime is hidden here | | | the lifetime is named here | @@ -262,10 +261,10 @@ LL | fn method_explicit_bound_ref_to_implicit_path<'a>(&'a self) -> Contains | ++++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:111:66 + --> $DIR/mismatched-lifetime-syntaxes.rs:111:95 | LL | fn method_explicit_bound_ref_to_explicit_anonymous_path<'a>(&'a self) -> ContainsLifetime<'_> { - | ^^ -- the same lifetime is elided here + | -- ^^ the same lifetime is elided here | | | the lifetime is named here | @@ -277,10 +276,10 @@ LL + fn method_explicit_bound_ref_to_explicit_anonymous_path<'a>(&'a self) - | error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:126:39 + --> $DIR/mismatched-lifetime-syntaxes.rs:126:54 | LL | fn static_ref_to_implicit_ref(v: &'static u8) -> &u8 { - | ^^^^^^^ --- the same lifetime is elided here + | ------- ^^^ the same lifetime is elided here | | | the lifetime is named here | @@ -291,10 +290,10 @@ LL | fn static_ref_to_implicit_ref(v: &'static u8) -> &'static u8 { | +++++++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:131:49 + --> $DIR/mismatched-lifetime-syntaxes.rs:131:65 | LL | fn static_ref_to_explicit_anonymous_ref(v: &'static u8) -> &'_ u8 { - | ^^^^^^^ -- the same lifetime is elided here + | ------- ^^ the same lifetime is elided here | | | the lifetime is named here | @@ -306,10 +305,10 @@ LL + fn static_ref_to_explicit_anonymous_ref(v: &'static u8) -> &'static u8 | error: hiding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:136:40 + --> $DIR/mismatched-lifetime-syntaxes.rs:136:55 | LL | fn static_ref_to_implicit_path(v: &'static u8) -> ContainsLifetime { - | ^^^^^^^ ---------------- the same lifetime is hidden here + | ------- ^^^^^^^^^^^^^^^^ the same lifetime is hidden here | | | the lifetime is named here | @@ -320,10 +319,10 @@ LL | fn static_ref_to_implicit_path(v: &'static u8) -> ContainsLifetime<'sta | +++++++++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:141:50 + --> $DIR/mismatched-lifetime-syntaxes.rs:141:82 | LL | fn static_ref_to_explicit_anonymous_path(v: &'static u8) -> ContainsLifetime<'_> { - | ^^^^^^^ -- the same lifetime is elided here + | ------- ^^ the same lifetime is elided here | | | the lifetime is named here | @@ -335,10 +334,10 @@ LL + fn static_ref_to_explicit_anonymous_path(v: &'static u8) -> ContainsLif | error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:147:40 + --> $DIR/mismatched-lifetime-syntaxes.rs:147:57 | LL | fn static_ref_to_implicit_ref(&'static self) -> &u8 { - | ^^^^^^^ --- the same lifetime is elided here + | ------- ^^^ the same lifetime is elided here | | | the lifetime is named here | @@ -349,10 +348,10 @@ LL | fn static_ref_to_implicit_ref(&'static self) -> &'static u8 { | +++++++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:152:50 + --> $DIR/mismatched-lifetime-syntaxes.rs:152:68 | LL | fn static_ref_to_explicit_anonymous_ref(&'static self) -> &'_ u8 { - | ^^^^^^^ -- the same lifetime is elided here + | ------- ^^ the same lifetime is elided here | | | the lifetime is named here | @@ -364,10 +363,10 @@ LL + fn static_ref_to_explicit_anonymous_ref(&'static self) -> &'static | error: hiding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:157:41 + --> $DIR/mismatched-lifetime-syntaxes.rs:157:58 | LL | fn static_ref_to_implicit_path(&'static self) -> ContainsLifetime { - | ^^^^^^^ ---------------- the same lifetime is hidden here + | ------- ^^^^^^^^^^^^^^^^ the same lifetime is hidden here | | | the lifetime is named here | @@ -378,10 +377,10 @@ LL | fn static_ref_to_implicit_path(&'static self) -> ContainsLifetime<' | +++++++++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:162:51 + --> $DIR/mismatched-lifetime-syntaxes.rs:162:85 | LL | fn static_ref_to_explicit_anonymous_path(&'static self) -> ContainsLifetime<'_> { - | ^^^^^^^ -- the same lifetime is elided here + | ------- ^^ the same lifetime is elided here | | | the lifetime is named here | @@ -393,10 +392,10 @@ LL + fn static_ref_to_explicit_anonymous_path(&'static self) -> Contains | error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:174:55 + --> $DIR/mismatched-lifetime-syntaxes.rs:174:81 | LL | fn explicit_bound_ref_to_impl_trait_bound<'a>(v: &'a u8) -> impl FnOnce() + '_ { - | ^^ -- the same lifetime is elided here + | -- ^^ the same lifetime is elided here | | | the lifetime is named here | @@ -408,10 +407,10 @@ LL + fn explicit_bound_ref_to_impl_trait_bound<'a>(v: &'a u8) -> impl FnOnce | error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:179:65 + --> $DIR/mismatched-lifetime-syntaxes.rs:179:95 | LL | fn explicit_bound_ref_to_impl_trait_precise_capture<'a>(v: &'a u8) -> impl FnOnce() + use<'_> { - | ^^ the lifetime is named here -- the same lifetime is elided here + | -- the lifetime is named here ^^ the same lifetime is elided here | = help: the same lifetime is referred to in inconsistent ways, making the signature confusing help: consistently use `'a` @@ -421,10 +420,10 @@ LL + fn explicit_bound_ref_to_impl_trait_precise_capture<'a>(v: &'a u8) -> i | error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:184:72 + --> $DIR/mismatched-lifetime-syntaxes.rs:184:96 | LL | fn explicit_bound_path_to_impl_trait_bound<'a>(v: ContainsLifetime<'a>) -> impl FnOnce() + '_ { - | ^^ -- the same lifetime is elided here + | -- ^^ the same lifetime is elided here | | | the lifetime is named here | @@ -436,13 +435,12 @@ LL + fn explicit_bound_path_to_impl_trait_bound<'a>(v: ContainsLifetime<'a>) | error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:190:29 + --> $DIR/mismatched-lifetime-syntaxes.rs:191:30 | LL | v: ContainsLifetime<'a>, - | ^^ the lifetime is named here -LL | + | -- the lifetime is named here LL | ) -> impl FnOnce() + use<'_> { - | -- the same lifetime is elided here + | ^^ the same lifetime is elided here | = help: the same lifetime is referred to in inconsistent ways, making the signature confusing help: consistently use `'a` @@ -452,10 +450,10 @@ LL + ) -> impl FnOnce() + use<'a> { | error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:204:54 + --> $DIR/mismatched-lifetime-syntaxes.rs:204:88 | LL | fn explicit_bound_ref_to_dyn_trait_bound<'a>(v: &'a u8) -> Box<dyn Iterator<Item = &u8> + '_> { - | ^^ the lifetime is named here --- the same lifetime is elided here + | -- the lifetime is named here ^^^ the same lifetime is elided here | = help: the same lifetime is referred to in inconsistent ways, making the signature confusing help: consistently use `'a` @@ -464,13 +462,12 @@ LL | fn explicit_bound_ref_to_dyn_trait_bound<'a>(v: &'a u8) -> Box<dyn Iter | ++ error: hiding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:210:29 + --> $DIR/mismatched-lifetime-syntaxes.rs:211:34 | LL | v: ContainsLifetime<'a>, - | ^^ the lifetime is named here -LL | + | -- the lifetime is named here LL | ) -> Box<dyn Iterator<Item = ContainsLifetime> + '_> { - | ---------------- the same lifetime is hidden here + | ^^^^^^^^^^^^^^^^ the same lifetime is hidden here | = help: the same lifetime is referred to in inconsistent ways, making the signature confusing help: consistently use `'a` @@ -479,10 +476,10 @@ LL | ) -> Box<dyn Iterator<Item = ContainsLifetime<'a>> + '_> { | ++++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:222:33 + --> $DIR/mismatched-lifetime-syntaxes.rs:222:52 | LL | fn multiple_inputs<'a>(v: (&'a u8, &'a u8)) -> &u8 { - | ^^ ^^ --- the same lifetime is elided here + | -- -- ^^^ the same lifetime is elided here | | | | | the lifetime is named here | the lifetime is named here @@ -494,10 +491,10 @@ LL | fn multiple_inputs<'a>(v: (&'a u8, &'a u8)) -> &'a u8 { | ++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:227:33 + --> $DIR/mismatched-lifetime-syntaxes.rs:227:44 | LL | fn multiple_outputs<'a>(v: &'a u8) -> (&u8, &u8) { - | ^^ --- --- the same lifetime is elided here + | -- ^^^ ^^^ the same lifetime is elided here | | | | | the same lifetime is elided here | the lifetime is named here @@ -509,10 +506,10 @@ LL | fn multiple_outputs<'a>(v: &'a u8) -> (&'a u8, &'a u8) { | ++ ++ error: hiding or eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:232:53 + --> $DIR/mismatched-lifetime-syntaxes.rs:232:62 | LL | fn all_three_categories<'a>(v: ContainsLifetime<'a>) -> (&u8, ContainsLifetime) { - | ^^ --- ---------------- the same lifetime is hidden here + | -- ^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here | | | | | the same lifetime is elided here | the lifetime is named here @@ -524,10 +521,10 @@ LL | fn all_three_categories<'a>(v: ContainsLifetime<'a>) -> (&'a u8, Contai | ++ ++++ error: eliding a lifetime that's named elsewhere is confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:237:38 + --> $DIR/mismatched-lifetime-syntaxes.rs:237:49 | LL | fn explicit_bound_output<'a>(v: &'a u8) -> (&u8, &'a u8, ContainsLifetime<'a>) { - | ^^ --- -- -- the same lifetime is named here + | -- ^^^ -- -- the same lifetime is named here | | | | | | | the same lifetime is named here | | the same lifetime is elided here @@ -543,7 +540,7 @@ error: hiding a lifetime that's elided elsewhere is confusing --> $DIR/mismatched-lifetime-syntaxes.rs:250:45 | LL | fn implicit_ref_to_implicit_path(v: &u8) -> ContainsLifetime; - | ^^^ ---------------- the same lifetime is hidden here + | ^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here | | | the lifetime is elided here | @@ -557,7 +554,7 @@ error: hiding a lifetime that's elided elsewhere is confusing --> $DIR/mismatched-lifetime-syntaxes.rs:253:49 | LL | fn method_implicit_ref_to_implicit_path(&self) -> ContainsLifetime; - | ^^^^^ ---------------- the same lifetime is hidden here + | ^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here | | | the lifetime is elided here | @@ -571,7 +568,7 @@ error: hiding a lifetime that's elided elsewhere is confusing --> $DIR/mismatched-lifetime-syntaxes.rs:258:45 | LL | fn implicit_ref_to_implicit_path(v: &u8) -> ContainsLifetime { - | ^^^ ---------------- the same lifetime is hidden here + | ^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here | | | the lifetime is elided here | @@ -585,7 +582,7 @@ error: hiding a lifetime that's elided elsewhere is confusing --> $DIR/mismatched-lifetime-syntaxes.rs:263:49 | LL | fn method_implicit_ref_to_implicit_path(&self) -> ContainsLifetime { - | ^^^^^ ---------------- the same lifetime is hidden here + | ^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here | | | the lifetime is elided here | @@ -599,7 +596,7 @@ error: hiding a lifetime that's elided elsewhere is confusing --> $DIR/mismatched-lifetime-syntaxes.rs:277:45 | LL | fn implicit_ref_to_implicit_path(v: &u8) -> ContainsLifetime; - | ^^^ ---------------- the same lifetime is hidden here + | ^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here | | | the lifetime is elided here | diff --git a/tests/ui/lifetimes/raw/use-of-undeclared-raw-lifetimes.rs b/tests/ui/lifetimes/raw/use-of-undeclared-raw-lifetimes.rs new file mode 100644 index 00000000000..69461cfb200 --- /dev/null +++ b/tests/ui/lifetimes/raw/use-of-undeclared-raw-lifetimes.rs @@ -0,0 +1,21 @@ +// Check that we properly suggest `r#fn` if we use it undeclared. +// https://github.com/rust-lang/rust/issues/143150 +// +//@ edition: 2021 + +fn a(_: dyn Trait + 'r#fn) { + //~^ ERROR use of undeclared lifetime name `'r#fn` [E0261] +} + +trait Trait {} + +struct Test { + a: &'r#fn str, + //~^ ERROR use of undeclared lifetime name `'r#fn` [E0261] +} + +trait Trait1<T> + where T: for<'a> Trait1<T> + 'r#fn { } +//~^ ERROR use of undeclared lifetime name `'r#fn` [E0261] + +fn main() {} diff --git a/tests/ui/lifetimes/raw/use-of-undeclared-raw-lifetimes.stderr b/tests/ui/lifetimes/raw/use-of-undeclared-raw-lifetimes.stderr new file mode 100644 index 00000000000..8a17ce53dcf --- /dev/null +++ b/tests/ui/lifetimes/raw/use-of-undeclared-raw-lifetimes.stderr @@ -0,0 +1,42 @@ +error[E0261]: use of undeclared lifetime name `'r#fn` + --> $DIR/use-of-undeclared-raw-lifetimes.rs:6:21 + | +LL | fn a(_: dyn Trait + 'r#fn) { + | ^^^^^ undeclared lifetime + | +help: consider introducing lifetime `'r#fn` here + | +LL | fn a<'r#fn>(_: dyn Trait + 'r#fn) { + | +++++++ + +error[E0261]: use of undeclared lifetime name `'r#fn` + --> $DIR/use-of-undeclared-raw-lifetimes.rs:13:9 + | +LL | a: &'r#fn str, + | ^^^^^ undeclared lifetime + | +help: consider introducing lifetime `'r#fn` here + | +LL | struct Test<'r#fn> { + | +++++++ + +error[E0261]: use of undeclared lifetime name `'r#fn` + --> $DIR/use-of-undeclared-raw-lifetimes.rs:18:32 + | +LL | where T: for<'a> Trait1<T> + 'r#fn { } + | ^^^^^ undeclared lifetime + | + = note: for more information on higher-ranked polymorphism, visit https://doc.rust-lang.org/nomicon/hrtb.html +help: consider making the bound lifetime-generic with a new `'r#fn` lifetime + | +LL - where T: for<'a> Trait1<T> + 'r#fn { } +LL + where for<'r#fn, 'a> T: Trait1<T> + 'r#fn { } + | +help: consider introducing lifetime `'r#fn` here + | +LL | trait Trait1<'r#fn, T> + | ++++++ + +error: aborting due to 3 previous errors + +For more information about this error, try `rustc --explain E0261`. diff --git a/tests/ui/lifetimes/unusual-rib-combinations.stderr b/tests/ui/lifetimes/unusual-rib-combinations.stderr index bd68479c58c..7f44ab2ed6b 100644 --- a/tests/ui/lifetimes/unusual-rib-combinations.stderr +++ b/tests/ui/lifetimes/unusual-rib-combinations.stderr @@ -30,7 +30,7 @@ LL | fn c<T = u8()>() {} | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887> - = note: `#[deny(invalid_type_param_default)]` on by default + = note: `#[deny(invalid_type_param_default)]` (part of `#[deny(future_incompatible)]`) on by default error[E0308]: mismatched types --> $DIR/unusual-rib-combinations.rs:5:16 @@ -51,5 +51,5 @@ LL | fn c<T = u8()>() {} | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887> - = note: `#[deny(invalid_type_param_default)]` on by default + = note: `#[deny(invalid_type_param_default)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/link-native-libs/link-attr-validation-early.stderr b/tests/ui/link-native-libs/link-attr-validation-early.stderr index 36cca6f27ef..d4fc2e272f8 100644 --- a/tests/ui/link-native-libs/link-attr-validation-early.stderr +++ b/tests/ui/link-native-libs/link-attr-validation-early.stderr @@ -7,7 +7,7 @@ LL | #[link] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> = note: for more information, visit <https://doc.rust-lang.org/reference/items/external-blocks.html#the-link-attribute> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default error: valid forms for the attribute are `#[link(name = "...")]`, `#[link(name = "...", kind = "dylib|static|...")]`, `#[link(name = "...", wasm_import_module = "...")]`, `#[link(name = "...", import_name_type = "decorated|noprefix|undecorated")]`, and `#[link(name = "...", kind = "dylib|static|...", wasm_import_module = "...", import_name_type = "decorated|noprefix|undecorated")]` --> $DIR/link-attr-validation-early.rs:4:1 @@ -31,7 +31,7 @@ LL | #[link] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> = note: for more information, visit <https://doc.rust-lang.org/reference/items/external-blocks.html#the-link-attribute> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: valid forms for the attribute are `#[link(name = "...")]`, `#[link(name = "...", kind = "dylib|static|...")]`, `#[link(name = "...", wasm_import_module = "...")]`, `#[link(name = "...", import_name_type = "decorated|noprefix|undecorated")]`, and `#[link(name = "...", kind = "dylib|static|...", wasm_import_module = "...", import_name_type = "decorated|noprefix|undecorated")]` @@ -43,5 +43,5 @@ LL | #[link = "foo"] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> = note: for more information, visit <https://doc.rust-lang.org/reference/items/external-blocks.html#the-link-attribute> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/linkage-attr/raw-dylib/windows/link-ordinal-not-foreign-fn.stderr b/tests/ui/linkage-attr/raw-dylib/windows/link-ordinal-not-foreign-fn.stderr index c561373db77..0f7fb8e6d3b 100644 --- a/tests/ui/linkage-attr/raw-dylib/windows/link-ordinal-not-foreign-fn.stderr +++ b/tests/ui/linkage-attr/raw-dylib/windows/link-ordinal-not-foreign-fn.stderr @@ -4,7 +4,7 @@ error: `#[link_ordinal]` attribute cannot be used on structs LL | #[link_ordinal(123)] | ^^^^^^^^^^^^^^^^^^^^ | - = help: `#[link_ordinal]` can be applied to foreign functions, foreign statics + = help: `#[link_ordinal]` can be applied to foreign functions and foreign statics error: `#[link_ordinal]` attribute cannot be used on functions --> $DIR/link-ordinal-not-foreign-fn.rs:5:1 @@ -12,7 +12,7 @@ error: `#[link_ordinal]` attribute cannot be used on functions LL | #[link_ordinal(123)] | ^^^^^^^^^^^^^^^^^^^^ | - = help: `#[link_ordinal]` can be applied to foreign functions, foreign statics + = help: `#[link_ordinal]` can be applied to foreign functions and foreign statics error: `#[link_ordinal]` attribute cannot be used on statics --> $DIR/link-ordinal-not-foreign-fn.rs:9:1 @@ -20,7 +20,7 @@ error: `#[link_ordinal]` attribute cannot be used on statics LL | #[link_ordinal(42)] | ^^^^^^^^^^^^^^^^^^^ | - = help: `#[link_ordinal]` can be applied to foreign functions, foreign statics + = help: `#[link_ordinal]` can be applied to foreign functions and foreign statics error: aborting due to 3 previous errors diff --git a/tests/ui/linkage-attr/raw-dylib/windows/unsupported-abi.stderr b/tests/ui/linkage-attr/raw-dylib/windows/unsupported-abi.stderr index 91e42f2909e..8727e55f4ce 100644 --- a/tests/ui/linkage-attr/raw-dylib/windows/unsupported-abi.stderr +++ b/tests/ui/linkage-attr/raw-dylib/windows/unsupported-abi.stderr @@ -12,7 +12,7 @@ LL | | } = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #137018 <https://github.com/rust-lang/rust/issues/137018> = help: if you need `extern "stdcall"` on win32 and `extern "C"` everywhere else, use `extern "system"` - = note: `#[warn(unsupported_calling_conventions)]` on by default + = note: `#[warn(unsupported_calling_conventions)]` (part of `#[warn(future_incompatible)]`) on by default error: ABI not supported by `#[link(kind = "raw-dylib")]` on this architecture --> $DIR/unsupported-abi.rs:16:5 diff --git a/tests/ui/lint/bare-trait-objects-path.stderr b/tests/ui/lint/bare-trait-objects-path.stderr index 8da63a9c546..5d756db2319 100644 --- a/tests/ui/lint/bare-trait-objects-path.stderr +++ b/tests/ui/lint/bare-trait-objects-path.stderr @@ -6,7 +6,7 @@ LL | Dyn::func(); | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | <dyn Dyn>::func(); diff --git a/tests/ui/lint/forbid-group-member.stderr b/tests/ui/lint/forbid-group-member.stderr index 2e0147693f3..54f56ecbe64 100644 --- a/tests/ui/lint/forbid-group-member.stderr +++ b/tests/ui/lint/forbid-group-member.stderr @@ -9,7 +9,7 @@ LL | #[allow(unused_variables)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #81670 <https://github.com/rust-lang/rust/issues/81670> - = note: `#[warn(forbidden_lint_groups)]` on by default + = note: `#[warn(forbidden_lint_groups)]` (part of `#[warn(future_incompatible)]`) on by default warning: 1 warning emitted @@ -25,5 +25,5 @@ LL | #[allow(unused_variables)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #81670 <https://github.com/rust-lang/rust/issues/81670> - = note: `#[warn(forbidden_lint_groups)]` on by default + = note: `#[warn(forbidden_lint_groups)]` (part of `#[warn(future_incompatible)]`) on by default diff --git a/tests/ui/lint/future-incompatible-lint-group.stderr b/tests/ui/lint/future-incompatible-lint-group.stderr index 87b9ebec08b..4157cd0c77d 100644 --- a/tests/ui/lint/future-incompatible-lint-group.stderr +++ b/tests/ui/lint/future-incompatible-lint-group.stderr @@ -6,7 +6,7 @@ LL | fn f(u8) {} | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686> - = note: `#[warn(anonymous_parameters)]` on by default + = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default error: ambiguous associated item --> $DIR/future-incompatible-lint-group.rs:18:17 diff --git a/tests/ui/lint/inert-attr-macro.rs b/tests/ui/lint/inert-attr-macro.rs index f2d50e30aec..c2ccba7f9ba 100644 --- a/tests/ui/lint/inert-attr-macro.rs +++ b/tests/ui/lint/inert-attr-macro.rs @@ -7,12 +7,14 @@ macro_rules! foo { } fn main() { - #[inline] foo!(); //~ WARN unused attribute `inline` + #[inline] foo!(); //~ WARN `#[inline]` attribute cannot be used on macro calls + //~^ WARN previously accepted // This does nothing, since `#[allow(warnings)]` is itself // an inert attribute on a macro call #[allow(warnings)] #[inline] foo!(); //~ WARN unused attribute `allow` - //~^ WARN unused attribute `inline` + //~^ WARN `#[inline]` attribute cannot be used on macro calls + //~| WARN previously accepted // This does work, since the attribute is on a parent // of the macro invocation. diff --git a/tests/ui/lint/inert-attr-macro.stderr b/tests/ui/lint/inert-attr-macro.stderr index 5ccb4ffe792..9ab6e3ddc74 100644 --- a/tests/ui/lint/inert-attr-macro.stderr +++ b/tests/ui/lint/inert-attr-macro.stderr @@ -1,14 +1,11 @@ -warning: unused attribute `inline` +warning: `#[inline]` attribute cannot be used on macro calls --> $DIR/inert-attr-macro.rs:10:5 | LL | #[inline] foo!(); | ^^^^^^^^^ | -note: the built-in attribute `inline` will be ignored, since it's applied to the macro invocation `foo` - --> $DIR/inert-attr-macro.rs:10:15 - | -LL | #[inline] foo!(); - | ^^^ + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[inline]` can only be applied to functions note: the lint level is defined here --> $DIR/inert-attr-macro.rs:3:9 | @@ -17,28 +14,25 @@ LL | #![warn(unused)] = note: `#[warn(unused_attributes)]` implied by `#[warn(unused)]` warning: unused attribute `allow` - --> $DIR/inert-attr-macro.rs:14:5 + --> $DIR/inert-attr-macro.rs:15:5 | LL | #[allow(warnings)] #[inline] foo!(); | ^^^^^^^^^^^^^^^^^^ | note: the built-in attribute `allow` will be ignored, since it's applied to the macro invocation `foo` - --> $DIR/inert-attr-macro.rs:14:34 + --> $DIR/inert-attr-macro.rs:15:34 | LL | #[allow(warnings)] #[inline] foo!(); | ^^^ -warning: unused attribute `inline` - --> $DIR/inert-attr-macro.rs:14:24 +warning: `#[inline]` attribute cannot be used on macro calls + --> $DIR/inert-attr-macro.rs:15:24 | LL | #[allow(warnings)] #[inline] foo!(); | ^^^^^^^^^ | -note: the built-in attribute `inline` will be ignored, since it's applied to the macro invocation `foo` - --> $DIR/inert-attr-macro.rs:14:34 - | -LL | #[allow(warnings)] #[inline] foo!(); - | ^^^ + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[inline]` can only be applied to functions warning: 3 warnings emitted diff --git a/tests/ui/lint/int_to_ptr.fixed b/tests/ui/lint/int_to_ptr.fixed new file mode 100644 index 00000000000..8f373492e6f --- /dev/null +++ b/tests/ui/lint/int_to_ptr.fixed @@ -0,0 +1,47 @@ +// Checks for the `integer_to_pointer_transmutes` lint + +//@ check-pass +//@ run-rustfix + +#![allow(unused_unsafe)] +#![allow(dead_code)] + +unsafe fn should_lint(a: usize) { + let _ptr: *const u8 = unsafe { std::ptr::with_exposed_provenance::<u8>(a) }; + //~^ WARN transmuting an integer to a pointer + let _ptr: *mut u8 = unsafe { std::ptr::with_exposed_provenance_mut::<u8>(a) }; + //~^ WARN transmuting an integer to a pointer + let _ref: &'static u8 = unsafe { &*std::ptr::with_exposed_provenance::<u8>(a) }; + //~^ WARN transmuting an integer to a pointer + let _ref: &'static mut u8 = unsafe { &mut *std::ptr::with_exposed_provenance_mut::<u8>(a) }; + //~^ WARN transmuting an integer to a pointer + + let _ptr = unsafe { std::ptr::with_exposed_provenance::<u8>(42usize) }; + //~^ WARN transmuting an integer to a pointer + let _ptr = unsafe { std::ptr::with_exposed_provenance::<u8>(a + a) }; + //~^ WARN transmuting an integer to a pointer +} + +const unsafe fn should_lintin_const(a: usize) { + let _ptr: *const u8 = unsafe { std::ptr::with_exposed_provenance::<u8>(a) }; + //~^ WARN transmuting an integer to a pointer + let _ptr: *mut u8 = unsafe { std::ptr::with_exposed_provenance_mut::<u8>(a) }; + //~^ WARN transmuting an integer to a pointer + let _ref: &'static u8 = unsafe { &*std::ptr::with_exposed_provenance::<u8>(a) }; + //~^ WARN transmuting an integer to a pointer + let _ref: &'static mut u8 = unsafe { &mut *std::ptr::with_exposed_provenance_mut::<u8>(a) }; + //~^ WARN transmuting an integer to a pointer + + let _ptr = unsafe { std::ptr::with_exposed_provenance::<u8>(42usize) }; + //~^ WARN transmuting an integer to a pointer + let _ptr = unsafe { std::ptr::with_exposed_provenance::<u8>(a + a) }; + //~^ WARN transmuting an integer to a pointer +} + +unsafe fn should_not_lint(a: usize) { + let _ptr = unsafe { std::mem::transmute::<usize, *const u8>(0usize) }; // linted by other lints + let _ptr = unsafe { std::mem::transmute::<usize, *const ()>(a) }; // inner type is a ZST + let _ptr = unsafe { std::mem::transmute::<usize, fn()>(a) }; // omit fn-ptr for now +} + +fn main() {} diff --git a/tests/ui/lint/int_to_ptr.rs b/tests/ui/lint/int_to_ptr.rs new file mode 100644 index 00000000000..7f60da47b85 --- /dev/null +++ b/tests/ui/lint/int_to_ptr.rs @@ -0,0 +1,47 @@ +// Checks for the `integer_to_pointer_transmutes` lint + +//@ check-pass +//@ run-rustfix + +#![allow(unused_unsafe)] +#![allow(dead_code)] + +unsafe fn should_lint(a: usize) { + let _ptr: *const u8 = unsafe { std::mem::transmute::<usize, *const u8>(a) }; + //~^ WARN transmuting an integer to a pointer + let _ptr: *mut u8 = unsafe { std::mem::transmute::<usize, *mut u8>(a) }; + //~^ WARN transmuting an integer to a pointer + let _ref: &'static u8 = unsafe { std::mem::transmute::<usize, &'static u8>(a) }; + //~^ WARN transmuting an integer to a pointer + let _ref: &'static mut u8 = unsafe { std::mem::transmute::<usize, &'static mut u8>(a) }; + //~^ WARN transmuting an integer to a pointer + + let _ptr = unsafe { std::mem::transmute::<usize, *const u8>(42usize) }; + //~^ WARN transmuting an integer to a pointer + let _ptr = unsafe { std::mem::transmute::<usize, *const u8>(a + a) }; + //~^ WARN transmuting an integer to a pointer +} + +const unsafe fn should_lintin_const(a: usize) { + let _ptr: *const u8 = unsafe { std::mem::transmute::<usize, *const u8>(a) }; + //~^ WARN transmuting an integer to a pointer + let _ptr: *mut u8 = unsafe { std::mem::transmute::<usize, *mut u8>(a) }; + //~^ WARN transmuting an integer to a pointer + let _ref: &'static u8 = unsafe { std::mem::transmute::<usize, &'static u8>(a) }; + //~^ WARN transmuting an integer to a pointer + let _ref: &'static mut u8 = unsafe { std::mem::transmute::<usize, &'static mut u8>(a) }; + //~^ WARN transmuting an integer to a pointer + + let _ptr = unsafe { std::mem::transmute::<usize, *const u8>(42usize) }; + //~^ WARN transmuting an integer to a pointer + let _ptr = unsafe { std::mem::transmute::<usize, *const u8>(a + a) }; + //~^ WARN transmuting an integer to a pointer +} + +unsafe fn should_not_lint(a: usize) { + let _ptr = unsafe { std::mem::transmute::<usize, *const u8>(0usize) }; // linted by other lints + let _ptr = unsafe { std::mem::transmute::<usize, *const ()>(a) }; // inner type is a ZST + let _ptr = unsafe { std::mem::transmute::<usize, fn()>(a) }; // omit fn-ptr for now +} + +fn main() {} diff --git a/tests/ui/lint/int_to_ptr.stderr b/tests/ui/lint/int_to_ptr.stderr new file mode 100644 index 00000000000..4035bda8fb2 --- /dev/null +++ b/tests/ui/lint/int_to_ptr.stderr @@ -0,0 +1,207 @@ +warning: transmuting an integer to a pointer creates a pointer without provenance + --> $DIR/int_to_ptr.rs:10:36 + | +LL | let _ptr: *const u8 = unsafe { std::mem::transmute::<usize, *const u8>(a) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: this is dangerous because dereferencing the resulting pointer is undefined behavior + = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance + = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` + = help: for more information about transmute, see <https://doc.rust-lang.org/std/mem/fn.transmute.html#transmutation-between-pointers-and-integers> + = help: for more information about exposed provenance, see <https://doc.rust-lang.org/std/ptr/index.html#exposed-provenance> + = note: `#[warn(integer_to_ptr_transmutes)]` on by default +help: use `std::ptr::with_exposed_provenance` instead to use a previously exposed provenance + | +LL - let _ptr: *const u8 = unsafe { std::mem::transmute::<usize, *const u8>(a) }; +LL + let _ptr: *const u8 = unsafe { std::ptr::with_exposed_provenance::<u8>(a) }; + | + +warning: transmuting an integer to a pointer creates a pointer without provenance + --> $DIR/int_to_ptr.rs:12:34 + | +LL | let _ptr: *mut u8 = unsafe { std::mem::transmute::<usize, *mut u8>(a) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: this is dangerous because dereferencing the resulting pointer is undefined behavior + = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance + = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` + = help: for more information about transmute, see <https://doc.rust-lang.org/std/mem/fn.transmute.html#transmutation-between-pointers-and-integers> + = help: for more information about exposed provenance, see <https://doc.rust-lang.org/std/ptr/index.html#exposed-provenance> +help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance + | +LL - let _ptr: *mut u8 = unsafe { std::mem::transmute::<usize, *mut u8>(a) }; +LL + let _ptr: *mut u8 = unsafe { std::ptr::with_exposed_provenance_mut::<u8>(a) }; + | + +warning: transmuting an integer to a pointer creates a pointer without provenance + --> $DIR/int_to_ptr.rs:14:38 + | +LL | let _ref: &'static u8 = unsafe { std::mem::transmute::<usize, &'static u8>(a) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: this is dangerous because dereferencing the resulting pointer is undefined behavior + = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance + = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` + = help: for more information about transmute, see <https://doc.rust-lang.org/std/mem/fn.transmute.html#transmutation-between-pointers-and-integers> + = help: for more information about exposed provenance, see <https://doc.rust-lang.org/std/ptr/index.html#exposed-provenance> +help: use `std::ptr::with_exposed_provenance` instead to use a previously exposed provenance + | +LL - let _ref: &'static u8 = unsafe { std::mem::transmute::<usize, &'static u8>(a) }; +LL + let _ref: &'static u8 = unsafe { &*std::ptr::with_exposed_provenance::<u8>(a) }; + | + +warning: transmuting an integer to a pointer creates a pointer without provenance + --> $DIR/int_to_ptr.rs:16:42 + | +LL | let _ref: &'static mut u8 = unsafe { std::mem::transmute::<usize, &'static mut u8>(a) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: this is dangerous because dereferencing the resulting pointer is undefined behavior + = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance + = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` + = help: for more information about transmute, see <https://doc.rust-lang.org/std/mem/fn.transmute.html#transmutation-between-pointers-and-integers> + = help: for more information about exposed provenance, see <https://doc.rust-lang.org/std/ptr/index.html#exposed-provenance> +help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance + | +LL - let _ref: &'static mut u8 = unsafe { std::mem::transmute::<usize, &'static mut u8>(a) }; +LL + let _ref: &'static mut u8 = unsafe { &mut *std::ptr::with_exposed_provenance_mut::<u8>(a) }; + | + +warning: transmuting an integer to a pointer creates a pointer without provenance + --> $DIR/int_to_ptr.rs:19:25 + | +LL | let _ptr = unsafe { std::mem::transmute::<usize, *const u8>(42usize) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: this is dangerous because dereferencing the resulting pointer is undefined behavior + = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance + = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` + = help: for more information about transmute, see <https://doc.rust-lang.org/std/mem/fn.transmute.html#transmutation-between-pointers-and-integers> + = help: for more information about exposed provenance, see <https://doc.rust-lang.org/std/ptr/index.html#exposed-provenance> +help: use `std::ptr::with_exposed_provenance` instead to use a previously exposed provenance + | +LL - let _ptr = unsafe { std::mem::transmute::<usize, *const u8>(42usize) }; +LL + let _ptr = unsafe { std::ptr::with_exposed_provenance::<u8>(42usize) }; + | + +warning: transmuting an integer to a pointer creates a pointer without provenance + --> $DIR/int_to_ptr.rs:21:25 + | +LL | let _ptr = unsafe { std::mem::transmute::<usize, *const u8>(a + a) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: this is dangerous because dereferencing the resulting pointer is undefined behavior + = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance + = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` + = help: for more information about transmute, see <https://doc.rust-lang.org/std/mem/fn.transmute.html#transmutation-between-pointers-and-integers> + = help: for more information about exposed provenance, see <https://doc.rust-lang.org/std/ptr/index.html#exposed-provenance> +help: use `std::ptr::with_exposed_provenance` instead to use a previously exposed provenance + | +LL - let _ptr = unsafe { std::mem::transmute::<usize, *const u8>(a + a) }; +LL + let _ptr = unsafe { std::ptr::with_exposed_provenance::<u8>(a + a) }; + | + +warning: transmuting an integer to a pointer creates a pointer without provenance + --> $DIR/int_to_ptr.rs:26:36 + | +LL | let _ptr: *const u8 = unsafe { std::mem::transmute::<usize, *const u8>(a) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: this is dangerous because dereferencing the resulting pointer is undefined behavior + = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance + = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` + = help: for more information about transmute, see <https://doc.rust-lang.org/std/mem/fn.transmute.html#transmutation-between-pointers-and-integers> + = help: for more information about exposed provenance, see <https://doc.rust-lang.org/std/ptr/index.html#exposed-provenance> +help: use `std::ptr::with_exposed_provenance` instead to use a previously exposed provenance + | +LL - let _ptr: *const u8 = unsafe { std::mem::transmute::<usize, *const u8>(a) }; +LL + let _ptr: *const u8 = unsafe { std::ptr::with_exposed_provenance::<u8>(a) }; + | + +warning: transmuting an integer to a pointer creates a pointer without provenance + --> $DIR/int_to_ptr.rs:28:34 + | +LL | let _ptr: *mut u8 = unsafe { std::mem::transmute::<usize, *mut u8>(a) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: this is dangerous because dereferencing the resulting pointer is undefined behavior + = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance + = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` + = help: for more information about transmute, see <https://doc.rust-lang.org/std/mem/fn.transmute.html#transmutation-between-pointers-and-integers> + = help: for more information about exposed provenance, see <https://doc.rust-lang.org/std/ptr/index.html#exposed-provenance> +help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance + | +LL - let _ptr: *mut u8 = unsafe { std::mem::transmute::<usize, *mut u8>(a) }; +LL + let _ptr: *mut u8 = unsafe { std::ptr::with_exposed_provenance_mut::<u8>(a) }; + | + +warning: transmuting an integer to a pointer creates a pointer without provenance + --> $DIR/int_to_ptr.rs:30:38 + | +LL | let _ref: &'static u8 = unsafe { std::mem::transmute::<usize, &'static u8>(a) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: this is dangerous because dereferencing the resulting pointer is undefined behavior + = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance + = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` + = help: for more information about transmute, see <https://doc.rust-lang.org/std/mem/fn.transmute.html#transmutation-between-pointers-and-integers> + = help: for more information about exposed provenance, see <https://doc.rust-lang.org/std/ptr/index.html#exposed-provenance> +help: use `std::ptr::with_exposed_provenance` instead to use a previously exposed provenance + | +LL - let _ref: &'static u8 = unsafe { std::mem::transmute::<usize, &'static u8>(a) }; +LL + let _ref: &'static u8 = unsafe { &*std::ptr::with_exposed_provenance::<u8>(a) }; + | + +warning: transmuting an integer to a pointer creates a pointer without provenance + --> $DIR/int_to_ptr.rs:32:42 + | +LL | let _ref: &'static mut u8 = unsafe { std::mem::transmute::<usize, &'static mut u8>(a) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: this is dangerous because dereferencing the resulting pointer is undefined behavior + = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance + = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` + = help: for more information about transmute, see <https://doc.rust-lang.org/std/mem/fn.transmute.html#transmutation-between-pointers-and-integers> + = help: for more information about exposed provenance, see <https://doc.rust-lang.org/std/ptr/index.html#exposed-provenance> +help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance + | +LL - let _ref: &'static mut u8 = unsafe { std::mem::transmute::<usize, &'static mut u8>(a) }; +LL + let _ref: &'static mut u8 = unsafe { &mut *std::ptr::with_exposed_provenance_mut::<u8>(a) }; + | + +warning: transmuting an integer to a pointer creates a pointer without provenance + --> $DIR/int_to_ptr.rs:35:25 + | +LL | let _ptr = unsafe { std::mem::transmute::<usize, *const u8>(42usize) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: this is dangerous because dereferencing the resulting pointer is undefined behavior + = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance + = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` + = help: for more information about transmute, see <https://doc.rust-lang.org/std/mem/fn.transmute.html#transmutation-between-pointers-and-integers> + = help: for more information about exposed provenance, see <https://doc.rust-lang.org/std/ptr/index.html#exposed-provenance> +help: use `std::ptr::with_exposed_provenance` instead to use a previously exposed provenance + | +LL - let _ptr = unsafe { std::mem::transmute::<usize, *const u8>(42usize) }; +LL + let _ptr = unsafe { std::ptr::with_exposed_provenance::<u8>(42usize) }; + | + +warning: transmuting an integer to a pointer creates a pointer without provenance + --> $DIR/int_to_ptr.rs:37:25 + | +LL | let _ptr = unsafe { std::mem::transmute::<usize, *const u8>(a + a) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: this is dangerous because dereferencing the resulting pointer is undefined behavior + = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance + = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` + = help: for more information about transmute, see <https://doc.rust-lang.org/std/mem/fn.transmute.html#transmutation-between-pointers-and-integers> + = help: for more information about exposed provenance, see <https://doc.rust-lang.org/std/ptr/index.html#exposed-provenance> +help: use `std::ptr::with_exposed_provenance` instead to use a previously exposed provenance + | +LL - let _ptr = unsafe { std::mem::transmute::<usize, *const u8>(a + a) }; +LL + let _ptr = unsafe { std::ptr::with_exposed_provenance::<u8>(a + a) }; + | + +warning: 12 warnings emitted + diff --git a/tests/ui/lint/internal/higher-ranked-query-instability.rs b/tests/ui/lint/internal/higher-ranked-query-instability.rs new file mode 100644 index 00000000000..4407baac0c6 --- /dev/null +++ b/tests/ui/lint/internal/higher-ranked-query-instability.rs @@ -0,0 +1,11 @@ +//@ check-pass +//@ compile-flags: -Zunstable-options + +// Make sure we don't try to resolve instances for trait refs that have escaping +// bound vars when computing the query instability lint. + +fn foo<T>() where for<'a> &'a [T]: IntoIterator<Item = &'a T> {} + +fn main() { + foo::<()>(); +} diff --git a/tests/ui/lint/let_underscore/let_underscore_lock.stderr b/tests/ui/lint/let_underscore/let_underscore_lock.stderr index a54a23e364b..d70dab32e3e 100644 --- a/tests/ui/lint/let_underscore/let_underscore_lock.stderr +++ b/tests/ui/lint/let_underscore/let_underscore_lock.stderr @@ -4,7 +4,7 @@ error: non-binding let on a synchronization lock LL | let _ = data.lock().unwrap(); | ^ this lock is not assigned to a binding and is immediately dropped | - = note: `#[deny(let_underscore_lock)]` on by default + = note: `#[deny(let_underscore_lock)]` (part of `#[deny(let_underscore)]`) on by default help: consider binding to an unused variable to avoid immediately dropping the value | LL | let _unused = data.lock().unwrap(); diff --git a/tests/ui/lint/lint-non-uppercase-usages.stderr b/tests/ui/lint/lint-non-uppercase-usages.stderr index b34be31216d..5dde4d4c89d 100644 --- a/tests/ui/lint/lint-non-uppercase-usages.stderr +++ b/tests/ui/lint/lint-non-uppercase-usages.stderr @@ -4,7 +4,7 @@ warning: constant `my_static` should have an upper case name LL | const my_static: u32 = 0; | ^^^^^^^^^ | - = note: `#[warn(non_upper_case_globals)]` on by default + = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default help: convert the identifier to upper case | LL - const my_static: u32 = 0; diff --git a/tests/ui/lint/mention-lint-group-in-default-level-lint-note-issue-65464.rs b/tests/ui/lint/mention-lint-group-in-default-level-lint-note-issue-65464.rs new file mode 100644 index 00000000000..5db7cc02baa --- /dev/null +++ b/tests/ui/lint/mention-lint-group-in-default-level-lint-note-issue-65464.rs @@ -0,0 +1,22 @@ +//@ check-pass + +// Verify information about membership to builtin lint group is included in the lint message when +// explaining lint level and source for builtin lints with default settings. +// +// Ideally, we'd like to use lints that are part of `unused` group as shown in the issue. +// This is not possible in a ui test, because `unused` lints are enabled with `-A unused` +// in such tests, and the we're testing a scenario with no modification to the default settings. + +fn main() { + // additional context is provided only if the level is not explicitly set + let WrongCase = 1; + //~^ WARN [non_snake_case] + //~| NOTE `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default + + // unchanged message if the level is explicitly set + // even if the level is the same as the default + #[warn(nonstandard_style)] //~ NOTE the lint level is defined here + let WrongCase = 2; + //~^ WARN [non_snake_case] + //~| NOTE `#[warn(non_snake_case)]` implied by `#[warn(nonstandard_style)]` +} diff --git a/tests/ui/lint/mention-lint-group-in-default-level-lint-note-issue-65464.stderr b/tests/ui/lint/mention-lint-group-in-default-level-lint-note-issue-65464.stderr new file mode 100644 index 00000000000..86ec59220f0 --- /dev/null +++ b/tests/ui/lint/mention-lint-group-in-default-level-lint-note-issue-65464.stderr @@ -0,0 +1,23 @@ +warning: variable `WrongCase` should have a snake case name + --> $DIR/mention-lint-group-in-default-level-lint-note-issue-65464.rs:12:9 + | +LL | let WrongCase = 1; + | ^^^^^^^^^ help: convert the identifier to snake case: `wrong_case` + | + = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default + +warning: variable `WrongCase` should have a snake case name + --> $DIR/mention-lint-group-in-default-level-lint-note-issue-65464.rs:19:9 + | +LL | let WrongCase = 2; + | ^^^^^^^^^ help: convert the identifier to snake case: `wrong_case` + | +note: the lint level is defined here + --> $DIR/mention-lint-group-in-default-level-lint-note-issue-65464.rs:18:12 + | +LL | #[warn(nonstandard_style)] + | ^^^^^^^^^^^^^^^^^ + = note: `#[warn(non_snake_case)]` implied by `#[warn(nonstandard_style)]` + +warning: 2 warnings emitted + diff --git a/tests/ui/lint/rfc-2457-non-ascii-idents/lint-uncommon-codepoints.stderr b/tests/ui/lint/rfc-2457-non-ascii-idents/lint-uncommon-codepoints.stderr index 000545a0600..1ba4deded46 100644 --- a/tests/ui/lint/rfc-2457-non-ascii-idents/lint-uncommon-codepoints.stderr +++ b/tests/ui/lint/rfc-2457-non-ascii-idents/lint-uncommon-codepoints.stderr @@ -33,7 +33,7 @@ warning: constant `µ` should have an upper case name LL | const µ: f64 = 0.000001; | ^ help: convert the identifier to upper case: `Μ` | - = note: `#[warn(non_upper_case_globals)]` on by default + = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default error: aborting due to 3 previous errors; 1 warning emitted diff --git a/tests/ui/lint/semicolon-in-expressions-from-macros/warn-semicolon-in-expressions-from-macros.stderr b/tests/ui/lint/semicolon-in-expressions-from-macros/warn-semicolon-in-expressions-from-macros.stderr index 99cdcafab39..9506d702f51 100644 --- a/tests/ui/lint/semicolon-in-expressions-from-macros/warn-semicolon-in-expressions-from-macros.stderr +++ b/tests/ui/lint/semicolon-in-expressions-from-macros/warn-semicolon-in-expressions-from-macros.stderr @@ -9,7 +9,7 @@ LL | _ => foo!() | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813> - = note: `#[deny(semicolon_in_expressions_from_macros)]` on by default + = note: `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default = note: this error originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 1 previous error @@ -26,6 +26,6 @@ LL | _ => foo!() | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813> - = note: `#[deny(semicolon_in_expressions_from_macros)]` on by default + = note: `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default = note: this error originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info) diff --git a/tests/ui/lint/special-upper-lower-cases.stderr b/tests/ui/lint/special-upper-lower-cases.stderr index 2aa13c33be3..0f5cf336aec 100644 --- a/tests/ui/lint/special-upper-lower-cases.stderr +++ b/tests/ui/lint/special-upper-lower-cases.stderr @@ -4,7 +4,7 @@ warning: type `𝕟𝕠𝕥𝕒𝕔𝕒𝕞𝕖𝕝` should have an upper camel LL | struct 𝕟𝕠𝕥𝕒𝕔𝕒𝕞𝕖𝕝; | ^^^^^^^^^ should have an UpperCamelCase name | - = note: `#[warn(non_camel_case_types)]` on by default + = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default warning: type `𝕟𝕠𝕥_𝕒_𝕔𝕒𝕞𝕖𝕝` should have an upper camel case name --> $DIR/special-upper-lower-cases.rs:14:8 @@ -18,7 +18,7 @@ warning: static variable `𝗻𝗼𝗻𝘂𝗽𝗽𝗲𝗿𝗰𝗮𝘀𝗲` shou LL | static 𝗻𝗼𝗻𝘂𝗽𝗽𝗲𝗿𝗰𝗮𝘀𝗲: i32 = 1; | ^^^^^^^^^^^^ should have an UPPER_CASE name | - = note: `#[warn(non_upper_case_globals)]` on by default + = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default warning: variable `𝓢𝓝𝓐𝓐𝓐𝓐𝓚𝓔𝓢` should have a snake case name --> $DIR/special-upper-lower-cases.rs:21:9 @@ -26,7 +26,7 @@ warning: variable `𝓢𝓝𝓐𝓐𝓐𝓐𝓚𝓔𝓢` should have a snake cas LL | let 𝓢𝓝𝓐𝓐𝓐𝓐𝓚𝓔𝓢 = 1; | ^^^^^^^^^ should have a snake_case name | - = note: `#[warn(non_snake_case)]` on by default + = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default warning: 4 warnings emitted diff --git a/tests/ui/lint/static-mut-refs.e2021.stderr b/tests/ui/lint/static-mut-refs.e2021.stderr index 75a7e60690c..86854ab2dda 100644 --- a/tests/ui/lint/static-mut-refs.e2021.stderr +++ b/tests/ui/lint/static-mut-refs.e2021.stderr @@ -6,7 +6,7 @@ LL | let _y = &X; | = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html> = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives - = note: `#[warn(static_mut_refs)]` on by default + = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `&raw const` instead to create a raw pointer | LL | let _y = &raw const X; diff --git a/tests/ui/lint/static-mut-refs.e2024.stderr b/tests/ui/lint/static-mut-refs.e2024.stderr index 42a96bafc88..5c21c5b0dd9 100644 --- a/tests/ui/lint/static-mut-refs.e2024.stderr +++ b/tests/ui/lint/static-mut-refs.e2024.stderr @@ -6,7 +6,7 @@ LL | let _y = &X; | = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html> = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives - = note: `#[deny(static_mut_refs)]` on by default + = note: `#[deny(static_mut_refs)]` (part of `#[deny(rust_2024_compatibility)]`) on by default help: use `&raw const` instead to create a raw pointer | LL | let _y = &raw const X; diff --git a/tests/ui/lint/unused/concat-in-crate-deprecated-issue-137687.rs b/tests/ui/lint/unused/concat-in-crate-deprecated-issue-137687.rs new file mode 100644 index 00000000000..22dd55f4421 --- /dev/null +++ b/tests/ui/lint/unused/concat-in-crate-deprecated-issue-137687.rs @@ -0,0 +1,6 @@ +//@ check-pass +#[deprecated = concat !()] +macro_rules! a { + () => {}; +} +fn main() {} diff --git a/tests/ui/lint/unused/concat-in-crate-name-issue-137687.rs b/tests/ui/lint/unused/concat-in-crate-name-issue-137687.rs new file mode 100644 index 00000000000..37fbf93ffa1 --- /dev/null +++ b/tests/ui/lint/unused/concat-in-crate-name-issue-137687.rs @@ -0,0 +1,9 @@ +#![deny(unused)] + +#[crate_name = concat !()] +//~^ ERROR crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo] +macro_rules! a { + //~^ ERROR unused macro definition + () => {}; +} +fn main() {} diff --git a/tests/ui/lint/unused/concat-in-crate-name-issue-137687.stderr b/tests/ui/lint/unused/concat-in-crate-name-issue-137687.stderr new file mode 100644 index 00000000000..4ffb55d493a --- /dev/null +++ b/tests/ui/lint/unused/concat-in-crate-name-issue-137687.stderr @@ -0,0 +1,23 @@ +error: unused macro definition: `a` + --> $DIR/concat-in-crate-name-issue-137687.rs:5:14 + | +LL | macro_rules! a { + | ^ + | +note: the lint level is defined here + --> $DIR/concat-in-crate-name-issue-137687.rs:1:9 + | +LL | #![deny(unused)] + | ^^^^^^ + = note: `#[deny(unused_macros)]` implied by `#[deny(unused)]` + +error: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` + --> $DIR/concat-in-crate-name-issue-137687.rs:3:1 + | +LL | #[crate_name = concat !()] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: `#[deny(unused_attributes)]` implied by `#[deny(unused)]` + +error: aborting due to 2 previous errors + diff --git a/tests/ui/lint/unused/issue-70041.stderr b/tests/ui/lint/unused/issue-70041.stderr index b2e6d1aeb3f..4a2c4b8b907 100644 --- a/tests/ui/lint/unused/issue-70041.stderr +++ b/tests/ui/lint/unused/issue-70041.stderr @@ -4,7 +4,7 @@ warning: unused macro definition: `regex` LL | macro_rules! regex { | ^^^^^ | - = note: `#[warn(unused_macros)]` on by default + = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default warning: unused import: `regex` --> $DIR/issue-70041.rs:10:5 @@ -12,7 +12,7 @@ warning: unused import: `regex` LL | use regex; | ^^^^^ | - = note: `#[warn(unused_imports)]` on by default + = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default warning: 2 warnings emitted diff --git a/tests/ui/lint/unused/unused-attr-duplicate.rs b/tests/ui/lint/unused/unused-attr-duplicate.rs index cfa6c2b4228..a334c49788c 100644 --- a/tests/ui/lint/unused/unused-attr-duplicate.rs +++ b/tests/ui/lint/unused/unused-attr-duplicate.rs @@ -11,8 +11,12 @@ // - no_main: extra setup #![deny(unused_attributes)] #![crate_name = "unused_attr_duplicate"] -#![crate_name = "unused_attr_duplicate2"] //~ ERROR unused attribute -//~^ WARN this was previously accepted +#![crate_name = "unused_attr_duplicate2"] +//~^ ERROR unused attribute +//~| WARN this was previously accepted +//~| ERROR unused attribute +//~| WARN this was previously accepted +// FIXME(jdonszelmann) this error is given twice now. I'll look at this in the future #![recursion_limit = "128"] #![recursion_limit = "256"] //~ ERROR unused attribute //~^ WARN this was previously accepted diff --git a/tests/ui/lint/unused/unused-attr-duplicate.stderr b/tests/ui/lint/unused/unused-attr-duplicate.stderr index 6c44e884ba5..203211d0d56 100644 --- a/tests/ui/lint/unused/unused-attr-duplicate.stderr +++ b/tests/ui/lint/unused/unused-attr-duplicate.stderr @@ -1,14 +1,15 @@ error: unused attribute - --> $DIR/unused-attr-duplicate.rs:33:1 + --> $DIR/unused-attr-duplicate.rs:14:1 | -LL | #[no_link] - | ^^^^^^^^^^ help: remove this attribute +LL | #![crate_name = "unused_attr_duplicate2"] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:32:1 + --> $DIR/unused-attr-duplicate.rs:13:1 | -LL | #[no_link] - | ^^^^^^^^^^ +LL | #![crate_name = "unused_attr_duplicate"] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! note: the lint level is defined here --> $DIR/unused-attr-duplicate.rs:12:9 | @@ -16,291 +17,304 @@ LL | #![deny(unused_attributes)] | ^^^^^^^^^^^^^^^^^ error: unused attribute - --> $DIR/unused-attr-duplicate.rs:14:1 + --> $DIR/unused-attr-duplicate.rs:37:1 | -LL | #![crate_name = "unused_attr_duplicate2"] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute +LL | #[no_link] + | ^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:13:1 + --> $DIR/unused-attr-duplicate.rs:36:1 | -LL | #![crate_name = "unused_attr_duplicate"] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! +LL | #[no_link] + | ^^^^^^^^^^ error: unused attribute - --> $DIR/unused-attr-duplicate.rs:17:1 + --> $DIR/unused-attr-duplicate.rs:21:1 | LL | #![recursion_limit = "256"] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:16:1 + --> $DIR/unused-attr-duplicate.rs:20:1 | LL | #![recursion_limit = "128"] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! error: unused attribute - --> $DIR/unused-attr-duplicate.rs:20:1 + --> $DIR/unused-attr-duplicate.rs:24:1 | LL | #![type_length_limit = "1"] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:19:1 + --> $DIR/unused-attr-duplicate.rs:23:1 | LL | #![type_length_limit = "1048576"] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! error: unused attribute - --> $DIR/unused-attr-duplicate.rs:23:1 + --> $DIR/unused-attr-duplicate.rs:27:1 | LL | #![no_std] | ^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:22:1 + --> $DIR/unused-attr-duplicate.rs:26:1 | LL | #![no_std] | ^^^^^^^^^^ error: unused attribute - --> $DIR/unused-attr-duplicate.rs:27:1 + --> $DIR/unused-attr-duplicate.rs:31:1 | LL | #![windows_subsystem = "windows"] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:26:1 + --> $DIR/unused-attr-duplicate.rs:30:1 | LL | #![windows_subsystem = "console"] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! error: unused attribute - --> $DIR/unused-attr-duplicate.rs:30:1 + --> $DIR/unused-attr-duplicate.rs:34:1 | LL | #![no_builtins] | ^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:29:1 + --> $DIR/unused-attr-duplicate.rs:33:1 | LL | #![no_builtins] | ^^^^^^^^^^^^^^^ error: unused attribute - --> $DIR/unused-attr-duplicate.rs:40:5 + --> $DIR/unused-attr-duplicate.rs:44:5 | LL | #[macro_export] | ^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:39:5 + --> $DIR/unused-attr-duplicate.rs:43:5 | LL | #[macro_export] | ^^^^^^^^^^^^^^^ error: unused attribute - --> $DIR/unused-attr-duplicate.rs:37:1 + --> $DIR/unused-attr-duplicate.rs:41:1 | LL | #[macro_use] | ^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:36:1 + --> $DIR/unused-attr-duplicate.rs:40:1 | LL | #[macro_use] | ^^^^^^^^^^^^ error: unused attribute - --> $DIR/unused-attr-duplicate.rs:47:1 + --> $DIR/unused-attr-duplicate.rs:51:1 | LL | #[path = "bar.rs"] | ^^^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:46:1 + --> $DIR/unused-attr-duplicate.rs:50:1 | LL | #[path = "auxiliary/lint_unused_extern_crate.rs"] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! error: unused attribute - --> $DIR/unused-attr-duplicate.rs:53:1 + --> $DIR/unused-attr-duplicate.rs:57:1 | LL | #[ignore = "some text"] | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:52:1 + --> $DIR/unused-attr-duplicate.rs:56:1 | LL | #[ignore] | ^^^^^^^^^ error: unused attribute - --> $DIR/unused-attr-duplicate.rs:55:1 + --> $DIR/unused-attr-duplicate.rs:59:1 | LL | #[should_panic(expected = "values don't match")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:54:1 + --> $DIR/unused-attr-duplicate.rs:58:1 | LL | #[should_panic] | ^^^^^^^^^^^^^^^ = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! error: unused attribute - --> $DIR/unused-attr-duplicate.rs:60:1 + --> $DIR/unused-attr-duplicate.rs:64:1 | LL | #[must_use = "some message"] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:59:1 + --> $DIR/unused-attr-duplicate.rs:63:1 | LL | #[must_use] | ^^^^^^^^^^^ = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! error: unused attribute - --> $DIR/unused-attr-duplicate.rs:66:1 + --> $DIR/unused-attr-duplicate.rs:70:1 | LL | #[non_exhaustive] | ^^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:65:1 + --> $DIR/unused-attr-duplicate.rs:69:1 | LL | #[non_exhaustive] | ^^^^^^^^^^^^^^^^^ error: unused attribute - --> $DIR/unused-attr-duplicate.rs:72:1 + --> $DIR/unused-attr-duplicate.rs:76:1 | LL | #[automatically_derived] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:71:1 + --> $DIR/unused-attr-duplicate.rs:75:1 | LL | #[automatically_derived] | ^^^^^^^^^^^^^^^^^^^^^^^^ error: unused attribute - --> $DIR/unused-attr-duplicate.rs:76:1 + --> $DIR/unused-attr-duplicate.rs:80:1 | LL | #[inline(never)] | ^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:75:1 + --> $DIR/unused-attr-duplicate.rs:79:1 | LL | #[inline(always)] | ^^^^^^^^^^^^^^^^^ = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! error: unused attribute - --> $DIR/unused-attr-duplicate.rs:79:1 + --> $DIR/unused-attr-duplicate.rs:83:1 | LL | #[cold] | ^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:78:1 + --> $DIR/unused-attr-duplicate.rs:82:1 | LL | #[cold] | ^^^^^^^ error: unused attribute - --> $DIR/unused-attr-duplicate.rs:81:1 + --> $DIR/unused-attr-duplicate.rs:85:1 | LL | #[track_caller] | ^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:80:1 + --> $DIR/unused-attr-duplicate.rs:84:1 | LL | #[track_caller] | ^^^^^^^^^^^^^^^ error: unused attribute - --> $DIR/unused-attr-duplicate.rs:88:5 + --> $DIR/unused-attr-duplicate.rs:92:5 | LL | #[link_name = "this_does_not_exist"] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:90:5 + --> $DIR/unused-attr-duplicate.rs:94:5 | LL | #[link_name = "rust_dbg_extern_identity_u32"] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! error: unused attribute - --> $DIR/unused-attr-duplicate.rs:94:1 + --> $DIR/unused-attr-duplicate.rs:98:1 | LL | #[export_name = "exported_symbol_name"] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:96:1 + --> $DIR/unused-attr-duplicate.rs:100:1 | LL | #[export_name = "exported_symbol_name2"] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! error: unused attribute - --> $DIR/unused-attr-duplicate.rs:100:1 + --> $DIR/unused-attr-duplicate.rs:104:1 | LL | #[no_mangle] | ^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:99:1 + --> $DIR/unused-attr-duplicate.rs:103:1 | LL | #[no_mangle] | ^^^^^^^^^^^^ error: unused attribute - --> $DIR/unused-attr-duplicate.rs:104:1 + --> $DIR/unused-attr-duplicate.rs:108:1 | LL | #[used] | ^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:103:1 + --> $DIR/unused-attr-duplicate.rs:107:1 | LL | #[used] | ^^^^^^^ error: unused attribute - --> $DIR/unused-attr-duplicate.rs:107:1 + --> $DIR/unused-attr-duplicate.rs:111:1 | LL | #[link_section = ".text"] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:110:1 + --> $DIR/unused-attr-duplicate.rs:114:1 | LL | #[link_section = ".bss"] | ^^^^^^^^^^^^^^^^^^^^^^^^ = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! error: unused attribute - --> $DIR/unused-attr-duplicate.rs:25:1 + --> $DIR/unused-attr-duplicate.rs:14:1 + | +LL | #![crate_name = "unused_attr_duplicate2"] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute + | +note: attribute also specified here + --> $DIR/unused-attr-duplicate.rs:13:1 + | +LL | #![crate_name = "unused_attr_duplicate"] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: unused attribute + --> $DIR/unused-attr-duplicate.rs:29:1 | LL | #![no_implicit_prelude] | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:24:1 + --> $DIR/unused-attr-duplicate.rs:28:1 | LL | #![no_implicit_prelude] | ^^^^^^^^^^^^^^^^^^^^^^^ -error: aborting due to 24 previous errors +error: aborting due to 25 previous errors diff --git a/tests/ui/lint/unused/unused-attr-macro-rules.stderr b/tests/ui/lint/unused/unused-attr-macro-rules.stderr index 0c55ae678e9..9d61120463c 100644 --- a/tests/ui/lint/unused/unused-attr-macro-rules.stderr +++ b/tests/ui/lint/unused/unused-attr-macro-rules.stderr @@ -17,7 +17,7 @@ LL | #[macro_use] | ^^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[macro_use]` can be applied to modules, extern crates, crates + = help: `#[macro_use]` can be applied to modules, extern crates, and crates error: `#[path]` attribute cannot be used on macro defs --> $DIR/unused-attr-macro-rules.rs:9:1 diff --git a/tests/ui/lint/unused/unused_attributes-must_use.fixed b/tests/ui/lint/unused/unused_attributes-must_use.fixed index 80d488296ea..fa596da95cc 100644 --- a/tests/ui/lint/unused/unused_attributes-must_use.fixed +++ b/tests/ui/lint/unused/unused_attributes-must_use.fixed @@ -4,18 +4,23 @@ #![deny(unused_attributes, unused_must_use)] #![feature(asm_experimental_arch, stmt_expr_attributes, trait_alias)] - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on +//~| WARN previously accepted extern crate std as std2; - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on +//~| WARN previously accepted mod test_mod {} - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on +//~| WARN previously accepted use std::arch::global_asm; - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on +//~| WARN previously accepted const CONST: usize = 4; - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on +//~| WARN previously accepted #[no_mangle] static STATIC: usize = 4; @@ -32,7 +37,8 @@ union U { unit: (), } - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on +//~| WARN previously accepted impl U { #[must_use] fn method() -> i32 { @@ -46,10 +52,12 @@ fn foo() -> i64 { 4 } - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on +//~| WARN previously accepted extern "Rust" { #[link_name = "STATIC"] - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on + //~| WARN previously accepted static FOREIGN_STATIC: usize; #[link_name = "foo"] @@ -57,19 +65,24 @@ extern "Rust" { fn foreign_foo() -> i64; } - //~ ERROR unused attribute +//~^ ERROR `#[must_use]` attribute cannot be used on macro calls +//~| WARN this was previously accepted by the compiler but is being phased out global_asm!(""); - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on +//~| WARN previously accepted type UseMe = (); -fn qux< T>(_: T) {} //~ ERROR `#[must_use]` has no effect +fn qux< T>(_: T) {} //~ ERROR attribute cannot be used on +//~| WARN previously accepted #[must_use] trait Use { - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on + //~| WARN previously accepted const ASSOC_CONST: usize = 4; - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on + //~| WARN previously accepted type AssocTy; #[must_use] @@ -78,20 +91,24 @@ trait Use { } } - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on +//~| WARN previously accepted impl Use for () { type AssocTy = (); - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on + //~| WARN previously accepted fn get_four(&self) -> usize { 4 } } - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on +//~| WARN previously accepted trait Alias = Use; - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on +//~| WARN previously accepted macro_rules! cool_macro { () => { 4 @@ -99,11 +116,13 @@ macro_rules! cool_macro { } fn main() { - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on + //~| WARN previously accepted let x = || {}; x(); - let x = //~ ERROR `#[must_use]` has no effect + let x = //~ ERROR attribute cannot be used on + //~| WARN previously accepted || {}; x(); @@ -125,7 +144,8 @@ fn main() { let _ = ().get_four(); //~ ERROR that must be used match Some(4) { - //~ ERROR `#[must_use]` has no effect + //~ ERROR attribute cannot be used on + //~| WARN previously accepted Some(res) => res, None => 0, }; @@ -133,7 +153,9 @@ fn main() { struct PatternField { foo: i32, } - let s = PatternField { foo: 123 }; //~ ERROR `#[must_use]` has no effect - let PatternField { foo } = s; //~ ERROR `#[must_use]` has no effect + let s = PatternField { foo: 123 }; //~ ERROR attribute cannot be used on + //~| WARN previously accepted + let PatternField { foo } = s; //~ ERROR attribute cannot be used on + //~| WARN previously accepted let _ = foo; } diff --git a/tests/ui/lint/unused/unused_attributes-must_use.rs b/tests/ui/lint/unused/unused_attributes-must_use.rs index edefe8ed65e..3e72dd1e438 100644 --- a/tests/ui/lint/unused/unused_attributes-must_use.rs +++ b/tests/ui/lint/unused/unused_attributes-must_use.rs @@ -4,18 +4,23 @@ #![deny(unused_attributes, unused_must_use)] #![feature(asm_experimental_arch, stmt_expr_attributes, trait_alias)] -#[must_use] //~ ERROR `#[must_use]` has no effect +#[must_use] //~ ERROR attribute cannot be used on +//~| WARN previously accepted extern crate std as std2; -#[must_use] //~ ERROR `#[must_use]` has no effect +#[must_use] //~ ERROR attribute cannot be used on +//~| WARN previously accepted mod test_mod {} -#[must_use] //~ ERROR `#[must_use]` has no effect +#[must_use] //~ ERROR attribute cannot be used on +//~| WARN previously accepted use std::arch::global_asm; -#[must_use] //~ ERROR `#[must_use]` has no effect +#[must_use] //~ ERROR attribute cannot be used on +//~| WARN previously accepted const CONST: usize = 4; -#[must_use] //~ ERROR `#[must_use]` has no effect +#[must_use] //~ ERROR attribute cannot be used on +//~| WARN previously accepted #[no_mangle] static STATIC: usize = 4; @@ -32,7 +37,8 @@ union U { unit: (), } -#[must_use] //~ ERROR `#[must_use]` has no effect +#[must_use] //~ ERROR attribute cannot be used on +//~| WARN previously accepted impl U { #[must_use] fn method() -> i32 { @@ -46,10 +52,12 @@ fn foo() -> i64 { 4 } -#[must_use] //~ ERROR `#[must_use]` has no effect +#[must_use] //~ ERROR attribute cannot be used on +//~| WARN previously accepted extern "Rust" { #[link_name = "STATIC"] - #[must_use] //~ ERROR `#[must_use]` has no effect + #[must_use] //~ ERROR attribute cannot be used on + //~| WARN previously accepted static FOREIGN_STATIC: usize; #[link_name = "foo"] @@ -57,19 +65,25 @@ extern "Rust" { fn foreign_foo() -> i64; } -#[must_use] //~ ERROR unused attribute +#[must_use] +//~^ ERROR `#[must_use]` attribute cannot be used on macro calls +//~| WARN this was previously accepted by the compiler but is being phased out global_asm!(""); -#[must_use] //~ ERROR `#[must_use]` has no effect +#[must_use] //~ ERROR attribute cannot be used on +//~| WARN previously accepted type UseMe = (); -fn qux<#[must_use] T>(_: T) {} //~ ERROR `#[must_use]` has no effect +fn qux<#[must_use] T>(_: T) {} //~ ERROR attribute cannot be used on +//~| WARN previously accepted #[must_use] trait Use { - #[must_use] //~ ERROR `#[must_use]` has no effect + #[must_use] //~ ERROR attribute cannot be used on + //~| WARN previously accepted const ASSOC_CONST: usize = 4; - #[must_use] //~ ERROR `#[must_use]` has no effect + #[must_use] //~ ERROR attribute cannot be used on + //~| WARN previously accepted type AssocTy; #[must_use] @@ -78,20 +92,24 @@ trait Use { } } -#[must_use] //~ ERROR `#[must_use]` has no effect +#[must_use] //~ ERROR attribute cannot be used on +//~| WARN previously accepted impl Use for () { type AssocTy = (); - #[must_use] //~ ERROR `#[must_use]` has no effect + #[must_use] //~ ERROR attribute cannot be used on + //~| WARN previously accepted fn get_four(&self) -> usize { 4 } } -#[must_use] //~ ERROR `#[must_use]` has no effect +#[must_use] //~ ERROR attribute cannot be used on +//~| WARN previously accepted trait Alias = Use; -#[must_use] //~ ERROR `#[must_use]` has no effect +#[must_use] //~ ERROR attribute cannot be used on +//~| WARN previously accepted macro_rules! cool_macro { () => { 4 @@ -99,11 +117,13 @@ macro_rules! cool_macro { } fn main() { - #[must_use] //~ ERROR `#[must_use]` has no effect + #[must_use] //~ ERROR attribute cannot be used on + //~| WARN previously accepted let x = || {}; x(); - let x = #[must_use] //~ ERROR `#[must_use]` has no effect + let x = #[must_use] //~ ERROR attribute cannot be used on + //~| WARN previously accepted || {}; x(); @@ -125,7 +145,8 @@ fn main() { ().get_four(); //~ ERROR that must be used match Some(4) { - #[must_use] //~ ERROR `#[must_use]` has no effect + #[must_use] //~ ERROR attribute cannot be used on + //~| WARN previously accepted Some(res) => res, None => 0, }; @@ -133,7 +154,9 @@ fn main() { struct PatternField { foo: i32, } - let s = PatternField { #[must_use] foo: 123 }; //~ ERROR `#[must_use]` has no effect - let PatternField { #[must_use] foo } = s; //~ ERROR `#[must_use]` has no effect + let s = PatternField { #[must_use] foo: 123 }; //~ ERROR attribute cannot be used on + //~| WARN previously accepted + let PatternField { #[must_use] foo } = s; //~ ERROR attribute cannot be used on + //~| WARN previously accepted let _ = foo; } diff --git a/tests/ui/lint/unused/unused_attributes-must_use.stderr b/tests/ui/lint/unused/unused_attributes-must_use.stderr index 9e37f6504cc..001ec52ddd9 100644 --- a/tests/ui/lint/unused/unused_attributes-must_use.stderr +++ b/tests/ui/lint/unused/unused_attributes-must_use.stderr @@ -1,148 +1,208 @@ -error: unused attribute `must_use` - --> $DIR/unused_attributes-must_use.rs:60:1 +error: `#[must_use]` attribute cannot be used on macro calls + --> $DIR/unused_attributes-must_use.rs:68:1 | LL | #[must_use] | ^^^^^^^^^^^ | -note: the built-in attribute `must_use` will be ignored, since it's applied to the macro invocation `global_asm` - --> $DIR/unused_attributes-must_use.rs:61:1 - | -LL | global_asm!(""); - | ^^^^^^^^^^ + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits note: the lint level is defined here --> $DIR/unused_attributes-must_use.rs:4:9 | LL | #![deny(unused_attributes, unused_must_use)] | ^^^^^^^^^^^^^^^^^ -error: `#[must_use]` has no effect when applied to extern crates +error: `#[must_use]` attribute cannot be used on extern crates --> $DIR/unused_attributes-must_use.rs:7:1 | LL | #[must_use] | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits -error: `#[must_use]` has no effect when applied to modules - --> $DIR/unused_attributes-must_use.rs:10:1 +error: `#[must_use]` attribute cannot be used on modules + --> $DIR/unused_attributes-must_use.rs:11:1 | LL | #[must_use] | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits -error: `#[must_use]` has no effect when applied to use statements - --> $DIR/unused_attributes-must_use.rs:13:1 +error: `#[must_use]` attribute cannot be used on use statements + --> $DIR/unused_attributes-must_use.rs:15:1 | LL | #[must_use] | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits -error: `#[must_use]` has no effect when applied to constants - --> $DIR/unused_attributes-must_use.rs:16:1 +error: `#[must_use]` attribute cannot be used on constants + --> $DIR/unused_attributes-must_use.rs:19:1 | LL | #[must_use] | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits -error: `#[must_use]` has no effect when applied to statics - --> $DIR/unused_attributes-must_use.rs:18:1 +error: `#[must_use]` attribute cannot be used on statics + --> $DIR/unused_attributes-must_use.rs:22:1 | LL | #[must_use] | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits -error: `#[must_use]` has no effect when applied to inherent impl blocks - --> $DIR/unused_attributes-must_use.rs:35:1 +error: `#[must_use]` attribute cannot be used on inherent impl blocks + --> $DIR/unused_attributes-must_use.rs:40:1 | LL | #[must_use] | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits -error: `#[must_use]` has no effect when applied to foreign modules - --> $DIR/unused_attributes-must_use.rs:49:1 +error: `#[must_use]` attribute cannot be used on foreign modules + --> $DIR/unused_attributes-must_use.rs:55:1 | LL | #[must_use] | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits -error: `#[must_use]` has no effect when applied to type aliases - --> $DIR/unused_attributes-must_use.rs:63:1 +error: `#[must_use]` attribute cannot be used on foreign statics + --> $DIR/unused_attributes-must_use.rs:59:5 + | +LL | #[must_use] + | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits + +error: `#[must_use]` attribute cannot be used on type aliases + --> $DIR/unused_attributes-must_use.rs:73:1 | LL | #[must_use] | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits -error: `#[must_use]` has no effect when applied to type parameters - --> $DIR/unused_attributes-must_use.rs:66:8 +error: `#[must_use]` attribute cannot be used on function params + --> $DIR/unused_attributes-must_use.rs:77:8 | LL | fn qux<#[must_use] T>(_: T) {} | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits -error: `#[must_use]` has no effect when applied to trait impl blocks - --> $DIR/unused_attributes-must_use.rs:81:1 +error: `#[must_use]` attribute cannot be used on associated consts + --> $DIR/unused_attributes-must_use.rs:82:5 + | +LL | #[must_use] + | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits + +error: `#[must_use]` attribute cannot be used on associated types + --> $DIR/unused_attributes-must_use.rs:85:5 + | +LL | #[must_use] + | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits + +error: `#[must_use]` attribute cannot be used on trait impl blocks + --> $DIR/unused_attributes-must_use.rs:95:1 | LL | #[must_use] | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits -error: `#[must_use]` has no effect when applied to trait aliases - --> $DIR/unused_attributes-must_use.rs:91:1 +error: `#[must_use]` attribute cannot be used on trait methods in impl blocks + --> $DIR/unused_attributes-must_use.rs:100:5 + | +LL | #[must_use] + | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to data types, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, and traits + +error: `#[must_use]` attribute cannot be used on trait aliases + --> $DIR/unused_attributes-must_use.rs:107:1 | LL | #[must_use] | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits -error: `#[must_use]` has no effect when applied to macro defs - --> $DIR/unused_attributes-must_use.rs:94:1 +error: `#[must_use]` attribute cannot be used on macro defs + --> $DIR/unused_attributes-must_use.rs:111:1 | LL | #[must_use] | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits -error: `#[must_use]` has no effect when applied to statements - --> $DIR/unused_attributes-must_use.rs:102:5 +error: `#[must_use]` attribute cannot be used on statements + --> $DIR/unused_attributes-must_use.rs:120:5 | LL | #[must_use] | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits -error: `#[must_use]` has no effect when applied to closures - --> $DIR/unused_attributes-must_use.rs:106:13 +error: `#[must_use]` attribute cannot be used on closures + --> $DIR/unused_attributes-must_use.rs:125:13 | LL | let x = #[must_use] | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to methods, data types, functions, unions, foreign functions, and traits -error: `#[must_use]` has no effect when applied to match arms - --> $DIR/unused_attributes-must_use.rs:128:9 +error: `#[must_use]` attribute cannot be used on match arms + --> $DIR/unused_attributes-must_use.rs:148:9 | LL | #[must_use] | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits -error: `#[must_use]` has no effect when applied to struct fields - --> $DIR/unused_attributes-must_use.rs:136:28 +error: `#[must_use]` attribute cannot be used on struct fields + --> $DIR/unused_attributes-must_use.rs:157:28 | LL | let s = PatternField { #[must_use] foo: 123 }; | ^^^^^^^^^^^ + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits -error: `#[must_use]` has no effect when applied to pattern fields - --> $DIR/unused_attributes-must_use.rs:137:24 +error: `#[must_use]` attribute cannot be used on pattern fields + --> $DIR/unused_attributes-must_use.rs:159:24 | LL | let PatternField { #[must_use] foo } = s; | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to associated consts - --> $DIR/unused_attributes-must_use.rs:70:5 | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to associated types - --> $DIR/unused_attributes-must_use.rs:72:5 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to provided trait methods - --> $DIR/unused_attributes-must_use.rs:85:5 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to foreign statics - --> $DIR/unused_attributes-must_use.rs:52:5 - | -LL | #[must_use] - | ^^^^^^^^^^^ + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = help: `#[must_use]` can be applied to functions, data types, unions, and traits error: unused `X` that must be used - --> $DIR/unused_attributes-must_use.rs:110:5 + --> $DIR/unused_attributes-must_use.rs:130:5 | LL | X; | ^ @@ -158,7 +218,7 @@ LL | let _ = X; | +++++++ error: unused `Y` that must be used - --> $DIR/unused_attributes-must_use.rs:111:5 + --> $DIR/unused_attributes-must_use.rs:131:5 | LL | Y::Z; | ^^^^ @@ -169,7 +229,7 @@ LL | let _ = Y::Z; | +++++++ error: unused `U` that must be used - --> $DIR/unused_attributes-must_use.rs:112:5 + --> $DIR/unused_attributes-must_use.rs:132:5 | LL | U { unit: () }; | ^^^^^^^^^^^^^^ @@ -180,7 +240,7 @@ LL | let _ = U { unit: () }; | +++++++ error: unused return value of `U::method` that must be used - --> $DIR/unused_attributes-must_use.rs:113:5 + --> $DIR/unused_attributes-must_use.rs:133:5 | LL | U::method(); | ^^^^^^^^^^^ @@ -191,7 +251,7 @@ LL | let _ = U::method(); | +++++++ error: unused return value of `foo` that must be used - --> $DIR/unused_attributes-must_use.rs:114:5 + --> $DIR/unused_attributes-must_use.rs:134:5 | LL | foo(); | ^^^^^ @@ -202,7 +262,7 @@ LL | let _ = foo(); | +++++++ error: unused return value of `foreign_foo` that must be used - --> $DIR/unused_attributes-must_use.rs:117:9 + --> $DIR/unused_attributes-must_use.rs:137:9 | LL | foreign_foo(); | ^^^^^^^^^^^^^ @@ -213,7 +273,7 @@ LL | let _ = foreign_foo(); | +++++++ error: unused return value of `Use::get_four` that must be used - --> $DIR/unused_attributes-must_use.rs:125:5 + --> $DIR/unused_attributes-must_use.rs:145:5 | LL | ().get_four(); | ^^^^^^^^^^^^^ diff --git a/tests/ui/lint/warn-unused-inline-on-fn-prototypes.stderr b/tests/ui/lint/warn-unused-inline-on-fn-prototypes.stderr index 336366042f9..fcce1db7a9a 100644 --- a/tests/ui/lint/warn-unused-inline-on-fn-prototypes.stderr +++ b/tests/ui/lint/warn-unused-inline-on-fn-prototypes.stderr @@ -5,7 +5,7 @@ LL | #[inline] | ^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[inline]` can be applied to functions, inherent methods, provided trait methods, trait methods in impl blocks, closures + = help: `#[inline]` can be applied to functions, inherent methods, provided trait methods, trait methods in impl blocks, and closures note: the lint level is defined here --> $DIR/warn-unused-inline-on-fn-prototypes.rs:1:9 | @@ -19,7 +19,7 @@ LL | #[inline] | ^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = help: `#[inline]` can be applied to methods, functions, closures + = help: `#[inline]` can be applied to methods, functions, and closures error: aborting due to 2 previous errors diff --git a/tests/ui/macros/issue-111749.stderr b/tests/ui/macros/issue-111749.stderr index 884537ef531..ae953e042e0 100644 --- a/tests/ui/macros/issue-111749.stderr +++ b/tests/ui/macros/issue-111749.stderr @@ -12,7 +12,7 @@ LL | cbor_map! { #[test(test)] 4}; | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 2 previous errors @@ -25,5 +25,5 @@ LL | cbor_map! { #[test(test)] 4}; | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/macros/issue-68060.stderr b/tests/ui/macros/issue-68060.stderr index c701e50f054..4699594a2b0 100644 --- a/tests/ui/macros/issue-68060.stderr +++ b/tests/ui/macros/issue-68060.stderr @@ -4,7 +4,7 @@ error: `#[target_feature]` attribute cannot be used on closures LL | #[target_feature(enable = "")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: `#[target_feature]` can be applied to methods, functions + = help: `#[target_feature]` can be applied to methods and functions error[E0658]: `#[track_caller]` on closures is currently unstable --> $DIR/issue-68060.rs:6:13 diff --git a/tests/ui/macros/lint-trailing-macro-call.stderr b/tests/ui/macros/lint-trailing-macro-call.stderr index 3fd1ea81345..cf836abb80f 100644 --- a/tests/ui/macros/lint-trailing-macro-call.stderr +++ b/tests/ui/macros/lint-trailing-macro-call.stderr @@ -11,7 +11,7 @@ LL | expand_it!() = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813> = note: macro invocations at the end of a block are treated as expressions = note: to ignore the value produced by the macro, add a semicolon after the invocation of `expand_it` - = note: `#[deny(semicolon_in_expressions_from_macros)]` on by default + = note: `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default = note: this error originates in the macro `expand_it` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 1 previous error @@ -30,6 +30,6 @@ LL | expand_it!() = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813> = note: macro invocations at the end of a block are treated as expressions = note: to ignore the value produced by the macro, add a semicolon after the invocation of `expand_it` - = note: `#[deny(semicolon_in_expressions_from_macros)]` on by default + = note: `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default = note: this error originates in the macro `expand_it` (in Nightly builds, run with -Z macro-backtrace for more info) diff --git a/tests/ui/macros/macro-context.stderr b/tests/ui/macros/macro-context.stderr index 6b49c05f360..2efc0b136bc 100644 --- a/tests/ui/macros/macro-context.stderr +++ b/tests/ui/macros/macro-context.stderr @@ -75,7 +75,7 @@ LL | let i = m!(); | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813> - = note: `#[deny(semicolon_in_expressions_from_macros)]` on by default + = note: `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default = note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 7 previous errors @@ -94,6 +94,6 @@ LL | let i = m!(); | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813> - = note: `#[deny(semicolon_in_expressions_from_macros)]` on by default + = note: `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default = note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info) diff --git a/tests/ui/macros/macro-in-expression-context.fixed b/tests/ui/macros/macro-in-expression-context.fixed index 52e1b429e48..1d767266025 100644 --- a/tests/ui/macros/macro-in-expression-context.fixed +++ b/tests/ui/macros/macro-in-expression-context.fixed @@ -8,7 +8,7 @@ macro_rules! foo { //~| NOTE macro invocations at the end of a block //~| NOTE to ignore the value produced by the macro //~| NOTE for more information - //~| NOTE `#[deny(semicolon_in_expressions_from_macros)]` on by default + //~| NOTE `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default assert_eq!("B", "B"); } //~^^ ERROR macro expansion ignores `assert_eq` and any tokens following diff --git a/tests/ui/macros/macro-in-expression-context.rs b/tests/ui/macros/macro-in-expression-context.rs index 5c560e78dad..0bdead1b480 100644 --- a/tests/ui/macros/macro-in-expression-context.rs +++ b/tests/ui/macros/macro-in-expression-context.rs @@ -8,7 +8,7 @@ macro_rules! foo { //~| NOTE macro invocations at the end of a block //~| NOTE to ignore the value produced by the macro //~| NOTE for more information - //~| NOTE `#[deny(semicolon_in_expressions_from_macros)]` on by default + //~| NOTE `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default assert_eq!("B", "B"); } //~^^ ERROR macro expansion ignores `assert_eq` and any tokens following diff --git a/tests/ui/macros/macro-in-expression-context.stderr b/tests/ui/macros/macro-in-expression-context.stderr index b04348d7010..ce5abdb94b2 100644 --- a/tests/ui/macros/macro-in-expression-context.stderr +++ b/tests/ui/macros/macro-in-expression-context.stderr @@ -26,7 +26,7 @@ LL | foo!() = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813> = note: macro invocations at the end of a block are treated as expressions = note: to ignore the value produced by the macro, add a semicolon after the invocation of `foo` - = note: `#[deny(semicolon_in_expressions_from_macros)]` on by default + = note: `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default = note: this error originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 2 previous errors @@ -45,6 +45,6 @@ LL | foo!() = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813> = note: macro invocations at the end of a block are treated as expressions = note: to ignore the value produced by the macro, add a semicolon after the invocation of `foo` - = note: `#[deny(semicolon_in_expressions_from_macros)]` on by default + = note: `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default = note: this error originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info) diff --git a/tests/ui/issues/issue-7970a.rs b/tests/ui/macros/macro-invocation-span-error-7970.rs index dae906410ed..df7e1cfea88 100644 --- a/tests/ui/issues/issue-7970a.rs +++ b/tests/ui/macros/macro-invocation-span-error-7970.rs @@ -1,5 +1,8 @@ +// https://github.com/rust-lang/rust/issues/7970 macro_rules! one_arg_macro { - ($fmt:expr) => (print!(concat!($fmt, "\n"))); + ($fmt:expr) => { + print!(concat!($fmt, "\n")) + }; } fn main() { diff --git a/tests/ui/issues/issue-7970a.stderr b/tests/ui/macros/macro-invocation-span-error-7970.stderr index 1e6bb92ea57..beb54e05992 100644 --- a/tests/ui/issues/issue-7970a.stderr +++ b/tests/ui/macros/macro-invocation-span-error-7970.stderr @@ -1,5 +1,5 @@ error: unexpected end of macro invocation - --> $DIR/issue-7970a.rs:6:5 + --> $DIR/macro-invocation-span-error-7970.rs:9:5 | LL | macro_rules! one_arg_macro { | -------------------------- when calling this macro @@ -8,9 +8,9 @@ LL | one_arg_macro!(); | ^^^^^^^^^^^^^^^^ missing tokens in macro arguments | note: while trying to match meta-variable `$fmt:expr` - --> $DIR/issue-7970a.rs:2:6 + --> $DIR/macro-invocation-span-error-7970.rs:3:6 | -LL | ($fmt:expr) => (print!(concat!($fmt, "\n"))); +LL | ($fmt:expr) => { | ^^^^^^^^^ error: aborting due to 1 previous error diff --git a/tests/ui/issues/issue-8521.rs b/tests/ui/macros/macro-path-type-bounds-8521.rs index 78ce85787d5..975d3dc402e 100644 --- a/tests/ui/issues/issue-8521.rs +++ b/tests/ui/macros/macro-path-type-bounds-8521.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/8521 //@ check-pass trait Foo1 {} diff --git a/tests/ui/issues/issue-7911.rs b/tests/ui/macros/macro-self-mutability-7911.rs index 11da4df5285..5313f86d97f 100644 --- a/tests/ui/issues/issue-7911.rs +++ b/tests/ui/macros/macro-self-mutability-7911.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/7911 //@ run-pass // (Closes #7911) Test that we can use the same self expression // with different mutability in macro in two methods diff --git a/tests/ui/issues/issue-7911.stderr b/tests/ui/macros/macro-self-mutability-7911.stderr index ead7ee191ac..43335aee3ea 100644 --- a/tests/ui/issues/issue-7911.stderr +++ b/tests/ui/macros/macro-self-mutability-7911.stderr @@ -1,12 +1,12 @@ warning: method `dummy` is never used - --> $DIR/issue-7911.rs:7:8 + --> $DIR/macro-self-mutability-7911.rs:8:8 | LL | trait FooBar { | ------ method in this trait LL | fn dummy(&self) { } | ^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/macros/non-fmt-panic.stderr b/tests/ui/macros/non-fmt-panic.stderr index 83410d36586..1787316b48b 100644 --- a/tests/ui/macros/non-fmt-panic.stderr +++ b/tests/ui/macros/non-fmt-panic.stderr @@ -5,7 +5,7 @@ LL | panic!("here's a brace: {"); | ^ | = note: this message is not used as a format string, but will be in Rust 2021 - = note: `#[warn(non_fmt_panics)]` on by default + = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: add a "{}" format string to use the message literally | LL | panic!("{}", "here's a brace: {"); diff --git a/tests/ui/malformed/malformed-regressions.stderr b/tests/ui/malformed/malformed-regressions.stderr index 4a00c9b4a7d..cab347a8062 100644 --- a/tests/ui/malformed/malformed-regressions.stderr +++ b/tests/ui/malformed/malformed-regressions.stderr @@ -7,7 +7,7 @@ LL | #[doc] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> = note: for more information, visit <https://doc.rust-lang.org/rustdoc/write-documentation/the-doc-attribute.html> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default error: valid forms for the attribute are `#[link(name = "...")]`, `#[link(name = "...", kind = "dylib|static|...")]`, `#[link(name = "...", wasm_import_module = "...")]`, `#[link(name = "...", import_name_type = "decorated|noprefix|undecorated")]`, and `#[link(name = "...", kind = "dylib|static|...", wasm_import_module = "...", import_name_type = "decorated|noprefix|undecorated")]` --> $DIR/malformed-regressions.rs:7:1 @@ -59,7 +59,7 @@ LL | #[doc] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> = note: for more information, visit <https://doc.rust-lang.org/rustdoc/write-documentation/the-doc-attribute.html> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: valid forms for the attribute are `#[link(name = "...")]`, `#[link(name = "...", kind = "dylib|static|...")]`, `#[link(name = "...", wasm_import_module = "...")]`, `#[link(name = "...", import_name_type = "decorated|noprefix|undecorated")]`, and `#[link(name = "...", kind = "dylib|static|...", wasm_import_module = "...", import_name_type = "decorated|noprefix|undecorated")]` @@ -71,7 +71,7 @@ LL | #[link] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> = note: for more information, visit <https://doc.rust-lang.org/reference/items/external-blocks.html#the-link-attribute> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: valid forms for the attribute are `#[link(name = "...")]`, `#[link(name = "...", kind = "dylib|static|...")]`, `#[link(name = "...", wasm_import_module = "...")]`, `#[link(name = "...", import_name_type = "decorated|noprefix|undecorated")]`, and `#[link(name = "...", kind = "dylib|static|...", wasm_import_module = "...", import_name_type = "decorated|noprefix|undecorated")]` @@ -83,7 +83,7 @@ LL | #[link = ""] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> = note: for more information, visit <https://doc.rust-lang.org/reference/items/external-blocks.html#the-link-attribute> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]` @@ -94,7 +94,7 @@ LL | #[ignore()] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: valid forms for the attribute are `#[inline(always)]`, `#[inline(never)]`, and `#[inline]` @@ -105,5 +105,5 @@ LL | #[inline = ""] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571> - = note: `#[deny(ill_formed_attribute_input)]` on by default + = note: `#[deny(ill_formed_attribute_input)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/marker_trait_attr/overlap-marker-trait.stderr b/tests/ui/marker_trait_attr/overlap-marker-trait.stderr index cdad382d11c..5516d034488 100644 --- a/tests/ui/marker_trait_attr/overlap-marker-trait.stderr +++ b/tests/ui/marker_trait_attr/overlap-marker-trait.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `NotDebugOrDisplay: Marker` is not satisfied --> $DIR/overlap-marker-trait.rs:28:17 | LL | is_marker::<NotDebugOrDisplay>(); - | ^^^^^^^^^^^^^^^^^ the trait `Marker` is not implemented for `NotDebugOrDisplay` + | ^^^^^^^^^^^^^^^^^ unsatisfied trait bound | +help: the trait `Marker` is not implemented for `NotDebugOrDisplay` + --> $DIR/overlap-marker-trait.rs:18:1 + | +LL | struct NotDebugOrDisplay; + | ^^^^^^^^^^^^^^^^^^^^^^^^ note: required by a bound in `is_marker` --> $DIR/overlap-marker-trait.rs:16:17 | diff --git a/tests/ui/issues/issue-7867.rs b/tests/ui/match/mismatched-types-in-match-pattern-7867.rs index 87e7c831e68..9ff8755c819 100644 --- a/tests/ui/issues/issue-7867.rs +++ b/tests/ui/match/mismatched-types-in-match-pattern-7867.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/7867 //@ dont-require-annotations: NOTE enum A { B, C } diff --git a/tests/ui/issues/issue-7867.stderr b/tests/ui/match/mismatched-types-in-match-pattern-7867.stderr index fcb69d775fa..8997f36114a 100644 --- a/tests/ui/issues/issue-7867.stderr +++ b/tests/ui/match/mismatched-types-in-match-pattern-7867.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/issue-7867.rs:9:9 + --> $DIR/mismatched-types-in-match-pattern-7867.rs:10:9 | LL | enum A { B, C } | - unit variant defined here diff --git a/tests/ui/methods/inherent-bound-in-probe.stderr b/tests/ui/methods/inherent-bound-in-probe.stderr index b7751ca4714..6502752bcb4 100644 --- a/tests/ui/methods/inherent-bound-in-probe.stderr +++ b/tests/ui/methods/inherent-bound-in-probe.stderr @@ -4,7 +4,11 @@ error[E0277]: `Helper<'a, T>` is not an iterator LL | type IntoIter = Helper<'a, T>; | ^^^^^^^^^^^^^ `Helper<'a, T>` is not an iterator | - = help: the trait `Iterator` is not implemented for `Helper<'a, T>` +help: the trait `Iterator` is not implemented for `Helper<'a, T>` + --> $DIR/inherent-bound-in-probe.rs:15:1 + | +LL | struct Helper<'a, T> + | ^^^^^^^^^^^^^^^^^^^^ note: required by a bound in `std::iter::IntoIterator::IntoIter` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL diff --git a/tests/ui/methods/method-call-lifetime-args-unresolved.stderr b/tests/ui/methods/method-call-lifetime-args-unresolved.stderr index d3bd74a49fb..a87c47a9f12 100644 --- a/tests/ui/methods/method-call-lifetime-args-unresolved.stderr +++ b/tests/ui/methods/method-call-lifetime-args-unresolved.stderr @@ -20,7 +20,7 @@ LL | 0.clone::<'a>(); | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868> - = note: `#[warn(late_bound_lifetime_arguments)]` on by default + = note: `#[warn(late_bound_lifetime_arguments)]` (part of `#[warn(future_incompatible)]`) on by default error: aborting due to 1 previous error; 1 warning emitted diff --git a/tests/ui/methods/method-recursive-blanket-impl.stderr b/tests/ui/methods/method-recursive-blanket-impl.stderr index e358f80d3ff..1074893744a 100644 --- a/tests/ui/methods/method-recursive-blanket-impl.stderr +++ b/tests/ui/methods/method-recursive-blanket-impl.stderr @@ -4,7 +4,7 @@ warning: trait `Foo` is never used LL | trait Foo<A> { | ^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/methods/method-two-trait-defer-resolution-2.stderr b/tests/ui/methods/method-two-trait-defer-resolution-2.stderr index 4501ea5d243..17ceb745b90 100644 --- a/tests/ui/methods/method-two-trait-defer-resolution-2.stderr +++ b/tests/ui/methods/method-two-trait-defer-resolution-2.stderr @@ -6,7 +6,7 @@ LL | trait MyCopy { fn foo(&self) { } } | | | method in this trait | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/methods/method-two-traits-distinguished-via-where-clause.stderr b/tests/ui/methods/method-two-traits-distinguished-via-where-clause.stderr index fa87ce5cc49..40f91337052 100644 --- a/tests/ui/methods/method-two-traits-distinguished-via-where-clause.stderr +++ b/tests/ui/methods/method-two-traits-distinguished-via-where-clause.stderr @@ -4,7 +4,7 @@ warning: trait `A` is never used LL | trait A { | ^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/methods/missing-bound-on-tuple.rs b/tests/ui/methods/missing-bound-on-tuple.rs deleted file mode 100644 index 25deabf5926..00000000000 --- a/tests/ui/methods/missing-bound-on-tuple.rs +++ /dev/null @@ -1,39 +0,0 @@ -trait WorksOnDefault { - fn do_something() {} -} - -impl<T: Default> WorksOnDefault for T {} -//~^ NOTE the following trait bounds were not satisfied -//~| NOTE unsatisfied trait bound introduced here - -trait Foo {} - -trait WorksOnFoo { - fn do_be_do() {} -} - -impl<T: Foo> WorksOnFoo for T {} -//~^ NOTE the following trait bounds were not satisfied -//~| NOTE unsatisfied trait bound introduced here - -impl<A: Foo, B: Foo, C: Foo> Foo for (A, B, C) {} -//~^ NOTE `Foo` is implemented for `(i32, u32, String)` -impl Foo for i32 {} -impl Foo for &i32 {} -impl Foo for u32 {} -impl Foo for String {} - -fn main() { - let _success = <(i32, u32, String)>::do_something(); - let _failure = <(i32, &u32, String)>::do_something(); //~ ERROR E0599 - //~^ NOTE `Default` is implemented for `(i32, u32, String)` - //~| NOTE function or associated item cannot be called on - let _success = <(i32, u32, String)>::do_be_do(); - let _failure = <(i32, &u32, String)>::do_be_do(); //~ ERROR E0599 - //~^ NOTE function or associated item cannot be called on - let _success = <(i32, u32, String)>::default(); - let _failure = <(i32, &u32, String)>::default(); //~ ERROR E0599 - //~^ NOTE `Default` is implemented for `(i32, u32, String)` - //~| NOTE function or associated item cannot be called on - //~| NOTE the following trait bounds were not satisfied -} diff --git a/tests/ui/methods/missing-bound-on-tuple.stderr b/tests/ui/methods/missing-bound-on-tuple.stderr deleted file mode 100644 index f3e0897e5e6..00000000000 --- a/tests/ui/methods/missing-bound-on-tuple.stderr +++ /dev/null @@ -1,58 +0,0 @@ -error[E0599]: the function or associated item `do_something` exists for tuple `(i32, &u32, String)`, but its trait bounds were not satisfied - --> $DIR/missing-bound-on-tuple.rs:28:43 - | -LL | let _failure = <(i32, &u32, String)>::do_something(); - | ^^^^^^^^^^^^ function or associated item cannot be called on `(i32, &u32, String)` due to unsatisfied trait bounds - | -note: the following trait bounds were not satisfied: - `&(i32, &u32, String): Default` - `&mut (i32, &u32, String): Default` - `(i32, &u32, String): Default` - --> $DIR/missing-bound-on-tuple.rs:5:9 - | -LL | impl<T: Default> WorksOnDefault for T {} - | ^^^^^^^ -------------- - - | | - | unsatisfied trait bound introduced here -note: `Default` is implemented for `(i32, u32, String)` but not for `(i32, &u32, String)` - --> $SRC_DIR/core/src/tuple.rs:LL:COL - = note: this error originates in the macro `tuple_impls` (in Nightly builds, run with -Z macro-backtrace for more info) - -error[E0599]: the function or associated item `do_be_do` exists for tuple `(i32, &u32, String)`, but its trait bounds were not satisfied - --> $DIR/missing-bound-on-tuple.rs:32:43 - | -LL | let _failure = <(i32, &u32, String)>::do_be_do(); - | ^^^^^^^^ function or associated item cannot be called on `(i32, &u32, String)` due to unsatisfied trait bounds - | -note: the following trait bounds were not satisfied: - `&(i32, &u32, String): Foo` - `&mut (i32, &u32, String): Foo` - `(i32, &u32, String): Foo` - --> $DIR/missing-bound-on-tuple.rs:15:9 - | -LL | impl<T: Foo> WorksOnFoo for T {} - | ^^^ ---------- - - | | - | unsatisfied trait bound introduced here -note: `Foo` is implemented for `(i32, u32, String)` but not for `(i32, &u32, String)` - --> $DIR/missing-bound-on-tuple.rs:19:1 - | -LL | impl<A: Foo, B: Foo, C: Foo> Foo for (A, B, C) {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -error[E0599]: the function or associated item `default` exists for tuple `(i32, &u32, String)`, but its trait bounds were not satisfied - --> $DIR/missing-bound-on-tuple.rs:35:43 - | -LL | let _failure = <(i32, &u32, String)>::default(); - | ^^^^^^^ function or associated item cannot be called on `(i32, &u32, String)` due to unsatisfied trait bounds - | - = note: the following trait bounds were not satisfied: - `&u32: Default` - which is required by `(i32, &u32, String): Default` -note: `Default` is implemented for `(i32, u32, String)` but not for `(i32, &u32, String)` - --> $SRC_DIR/core/src/tuple.rs:LL:COL - = note: this error originates in the macro `tuple_impls` (in Nightly builds, run with -Z macro-backtrace for more info) - -error: aborting due to 3 previous errors - -For more information about this error, try `rustc --explain E0599`. diff --git a/tests/ui/methods/rigid-alias-bound-is-not-inherent-2.rs b/tests/ui/methods/rigid-alias-bound-is-not-inherent-2.rs new file mode 100644 index 00000000000..8363ec1b3fb --- /dev/null +++ b/tests/ui/methods/rigid-alias-bound-is-not-inherent-2.rs @@ -0,0 +1,17 @@ +// Regression test for <github.com/rust-lang/rust/issues/145185>. + +mod module { + pub trait Trait { + fn method(&self); + } +} + +// Note that we do not import Trait +use std::ops::Deref; + +fn foo(x: impl Deref<Target: module::Trait>) { + x.method(); + //~^ ERROR no method named `method` found for type parameter +} + +fn main() {} diff --git a/tests/ui/methods/rigid-alias-bound-is-not-inherent-2.stderr b/tests/ui/methods/rigid-alias-bound-is-not-inherent-2.stderr new file mode 100644 index 00000000000..433cab9cf9e --- /dev/null +++ b/tests/ui/methods/rigid-alias-bound-is-not-inherent-2.stderr @@ -0,0 +1,17 @@ +error[E0599]: no method named `method` found for type parameter `impl Deref<Target : module::Trait>` in the current scope + --> $DIR/rigid-alias-bound-is-not-inherent-2.rs:13:7 + | +LL | fn foo(x: impl Deref<Target: module::Trait>) { + | --------------------------------- method `method` not found for this type parameter +LL | x.method(); + | ^^^^^^ method not found in `impl Deref<Target : module::Trait>` + | + = help: items from traits can only be used if the trait is in scope +help: trait `Trait` which provides `method` is implemented but not in scope; perhaps you want to import it + | +LL + use module::Trait; + | + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0599`. diff --git a/tests/ui/methods/rigid-alias-bound-is-not-inherent-3.rs b/tests/ui/methods/rigid-alias-bound-is-not-inherent-3.rs new file mode 100644 index 00000000000..bb316eed34d --- /dev/null +++ b/tests/ui/methods/rigid-alias-bound-is-not-inherent-3.rs @@ -0,0 +1,26 @@ +use std::ops::Deref; + +trait Trait1 { + fn call_me(&self) {} +} + +impl<T> Trait1 for T {} + +trait Trait2 { + fn call_me(&self) {} +} + +impl<T> Trait2 for T {} + +pub fn foo<T, U>(x: T) +where + T: Deref<Target = U>, + U: Trait1, +{ + // This should be ambiguous. The fact that there's an inherent where-bound + // candidate for `U` should not impact the candidates for `T` + x.call_me(); + //~^ ERROR multiple applicable items in scope +} + +fn main() {} diff --git a/tests/ui/methods/rigid-alias-bound-is-not-inherent-3.stderr b/tests/ui/methods/rigid-alias-bound-is-not-inherent-3.stderr new file mode 100644 index 00000000000..466ad4d2abc --- /dev/null +++ b/tests/ui/methods/rigid-alias-bound-is-not-inherent-3.stderr @@ -0,0 +1,30 @@ +error[E0034]: multiple applicable items in scope + --> $DIR/rigid-alias-bound-is-not-inherent-3.rs:22:7 + | +LL | x.call_me(); + | ^^^^^^^ multiple `call_me` found + | +note: candidate #1 is defined in an impl of the trait `Trait1` for the type `T` + --> $DIR/rigid-alias-bound-is-not-inherent-3.rs:4:5 + | +LL | fn call_me(&self) {} + | ^^^^^^^^^^^^^^^^^ +note: candidate #2 is defined in an impl of the trait `Trait2` for the type `T` + --> $DIR/rigid-alias-bound-is-not-inherent-3.rs:10:5 + | +LL | fn call_me(&self) {} + | ^^^^^^^^^^^^^^^^^ +help: disambiguate the method for candidate #1 + | +LL - x.call_me(); +LL + Trait1::call_me(&x); + | +help: disambiguate the method for candidate #2 + | +LL - x.call_me(); +LL + Trait2::call_me(&x); + | + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0034`. diff --git a/tests/ui/methods/rigid-alias-bound-is-not-inherent.current.stderr b/tests/ui/methods/rigid-alias-bound-is-not-inherent.current.stderr new file mode 100644 index 00000000000..4652bf5e3c5 --- /dev/null +++ b/tests/ui/methods/rigid-alias-bound-is-not-inherent.current.stderr @@ -0,0 +1,30 @@ +error[E0034]: multiple applicable items in scope + --> $DIR/rigid-alias-bound-is-not-inherent.rs:42:7 + | +LL | x.method(); + | ^^^^^^ multiple `method` found + | +note: candidate #1 is defined in the trait `Trait1` + --> $DIR/rigid-alias-bound-is-not-inherent.rs:21:5 + | +LL | fn method(&self) { + | ^^^^^^^^^^^^^^^^ +note: candidate #2 is defined in an impl of the trait `Trait2` for the type `T` + --> $DIR/rigid-alias-bound-is-not-inherent.rs:27:5 + | +LL | fn method(&self) { + | ^^^^^^^^^^^^^^^^ +help: disambiguate the method for candidate #1 + | +LL - x.method(); +LL + Trait1::method(&x); + | +help: disambiguate the method for candidate #2 + | +LL - x.method(); +LL + Trait2::method(&x); + | + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0034`. diff --git a/tests/ui/methods/rigid-alias-bound-is-not-inherent.next.stderr b/tests/ui/methods/rigid-alias-bound-is-not-inherent.next.stderr new file mode 100644 index 00000000000..afacb3a7d52 --- /dev/null +++ b/tests/ui/methods/rigid-alias-bound-is-not-inherent.next.stderr @@ -0,0 +1,30 @@ +error[E0034]: multiple applicable items in scope + --> $DIR/rigid-alias-bound-is-not-inherent.rs:42:7 + | +LL | x.method(); + | ^^^^^^ multiple `method` found + | +note: candidate #1 is defined in the trait `Trait1` + --> $DIR/rigid-alias-bound-is-not-inherent.rs:21:5 + | +LL | fn method(&self) { + | ^^^^^^^^^^^^^^^^ +note: candidate #2 is defined in the trait `Trait2` + --> $DIR/rigid-alias-bound-is-not-inherent.rs:27:5 + | +LL | fn method(&self) { + | ^^^^^^^^^^^^^^^^ +help: disambiguate the method for candidate #1 + | +LL - x.method(); +LL + Trait1::method(&x); + | +help: disambiguate the method for candidate #2 + | +LL - x.method(); +LL + Trait2::method(&x); + | + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0034`. diff --git a/tests/ui/methods/rigid-alias-bound-is-not-inherent.rs b/tests/ui/methods/rigid-alias-bound-is-not-inherent.rs new file mode 100644 index 00000000000..3dd63df3f39 --- /dev/null +++ b/tests/ui/methods/rigid-alias-bound-is-not-inherent.rs @@ -0,0 +1,46 @@ +//@ revisions: current next +//@ ignore-compare-mode-next-solver (explicit revisions) +//@[next] compile-flags: -Znext-solver + +// See the code below. +// +// We were using `DeepRejectCtxt` to ensure that `assemble_inherent_candidates_from_param` +// did not rely on the param-env being eagerly normalized. Since aliases unify with all +// types, this meant that a rigid param-env candidate like `<T as Deref>::Target: Trait1` +// would be registered as a "WhereClauseCandidate", which is treated as inherent. Since +// we evaluate these candidates for all self types in the deref chain, this candidate +// would be satisfied for `<T as Deref>::Target`, meaning that it would be preferred over +// an "extension" candidate like `<T as Deref>::Target: Trait2` even though it holds. +// This is problematic, since it causes ambiguities to be broken somewhat arbitrarily. +// And as a side-effect, it also caused our computation of "used" traits to be miscalculated +// since inherent candidates don't count as an import usage. + +use std::ops::Deref; + +trait Trait1 { + fn method(&self) { + println!("1"); + } +} + +trait Trait2 { + fn method(&self) { + println!("2"); + } +} +impl<T: Other + ?Sized> Trait2 for T {} + +trait Other {} + +fn foo<T>(x: T) +where + T: Deref, + <T as Deref>::Target: Trait1 + Other, +{ + // Make sure that we don't prefer methods from where clauses for rigid aliases, + // just for params. We could revisit this behavior, but it would be a lang change. + x.method(); + //~^ ERROR multiple applicable items in scope +} + +fn main() {} diff --git a/tests/ui/issues/issue-7575.rs b/tests/ui/methods/trait-method-self-param-error-7575.rs index 8b1fdf6c851..9793d43cc24 100644 --- a/tests/ui/issues/issue-7575.rs +++ b/tests/ui/methods/trait-method-self-param-error-7575.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/7575 //@ run-pass trait Foo { //~ WARN trait `Foo` is never used diff --git a/tests/ui/methods/trait-method-self-param-error-7575.stderr b/tests/ui/methods/trait-method-self-param-error-7575.stderr new file mode 100644 index 00000000000..656db30352d --- /dev/null +++ b/tests/ui/methods/trait-method-self-param-error-7575.stderr @@ -0,0 +1,10 @@ +warning: trait `Foo` is never used + --> $DIR/trait-method-self-param-error-7575.rs:4:7 + | +LL | trait Foo { + | ^^^ + | + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default + +warning: 1 warning emitted + diff --git a/tests/ui/methods/tuple-suggestions-issue-142488.rs b/tests/ui/methods/tuple-suggestions-issue-142488.rs new file mode 100644 index 00000000000..f6c58fce9a1 --- /dev/null +++ b/tests/ui/methods/tuple-suggestions-issue-142488.rs @@ -0,0 +1,48 @@ +// Regression test for issue #142488, a diagnostics ICE when trying to suggest missing methods +// present in similar tuple types. +// This is a few of the MCVEs from the issues and its many duplicates. + +// 1 +fn main() { + for a in x { + //~^ ERROR: cannot find value `x` in this scope + (a,).to_string() + //~^ ERROR: the method `to_string` exists for tuple + } +} + +// 2 +trait Trait { + fn meth(self); +} + +impl<T, U: Trait> Trait for (T, U) { + fn meth(self) {} +} + +fn mcve2() { + ((), std::collections::HashMap::new()).meth() + //~^ ERROR: the method `meth` exists for tuple +} + +// 3 +trait I {} + +struct Struct; +impl I for Struct {} + +trait Tr { + fn f<A>(self) -> (A,) + where + Self: Sized, + { + loop {} + } +} + +impl<T> Tr for T where T: I {} + +fn mcve3() { + Struct.f().f(); + //~^ ERROR: the method `f` exists for tuple +} diff --git a/tests/ui/methods/tuple-suggestions-issue-142488.stderr b/tests/ui/methods/tuple-suggestions-issue-142488.stderr new file mode 100644 index 00000000000..f9363bb216f --- /dev/null +++ b/tests/ui/methods/tuple-suggestions-issue-142488.stderr @@ -0,0 +1,61 @@ +error[E0425]: cannot find value `x` in this scope + --> $DIR/tuple-suggestions-issue-142488.rs:7:14 + | +LL | for a in x { + | ^ not found in this scope + +error[E0599]: the method `to_string` exists for tuple `(_,)`, but its trait bounds were not satisfied + --> $DIR/tuple-suggestions-issue-142488.rs:9:14 + | +LL | (a,).to_string() + | ^^^^^^^^^ method cannot be called on `(_,)` due to unsatisfied trait bounds + | + = note: the following trait bounds were not satisfied: + `(_,): std::fmt::Display` + which is required by `(_,): ToString` + +error[E0599]: the method `meth` exists for tuple `((), HashMap<_, _>)`, but its trait bounds were not satisfied + --> $DIR/tuple-suggestions-issue-142488.rs:24:44 + | +LL | ((), std::collections::HashMap::new()).meth() + | ^^^^ method cannot be called on `((), HashMap<_, _>)` due to unsatisfied trait bounds + | +note: trait bound `HashMap<_, _>: Trait` was not satisfied + --> $DIR/tuple-suggestions-issue-142488.rs:19:12 + | +LL | impl<T, U: Trait> Trait for (T, U) { + | ^^^^^ ----- ------ + | | + | unsatisfied trait bound introduced here + = help: items from traits can only be used if the trait is implemented and in scope +note: `Trait` defines an item `meth`, perhaps you need to implement it + --> $DIR/tuple-suggestions-issue-142488.rs:15:1 + | +LL | trait Trait { + | ^^^^^^^^^^^ + +error[E0599]: the method `f` exists for tuple `(_,)`, but its trait bounds were not satisfied + --> $DIR/tuple-suggestions-issue-142488.rs:46:16 + | +LL | Struct.f().f(); + | ^ method cannot be called on `(_,)` due to unsatisfied trait bounds + | +note: the following trait bounds were not satisfied: + `&(_,): I` + `&mut (_,): I` + `(_,): I` + --> $DIR/tuple-suggestions-issue-142488.rs:43:27 + | +LL | impl<T> Tr for T where T: I {} + | -- - ^ unsatisfied trait bound introduced here + = help: items from traits can only be used if the trait is implemented and in scope +note: `Tr` defines an item `f`, perhaps you need to implement it + --> $DIR/tuple-suggestions-issue-142488.rs:34:1 + | +LL | trait Tr { + | ^^^^^^^^ + +error: aborting due to 4 previous errors + +Some errors have detailed explanations: E0425, E0599. +For more information about an error, try `rustc --explain E0425`. diff --git a/tests/ui/issues/issue-81918.rs b/tests/ui/mir/mir-cfg-unpretty-check-81918.rs index ee9721c2493..4798a654375 100644 --- a/tests/ui/issues/issue-81918.rs +++ b/tests/ui/mir/mir-cfg-unpretty-check-81918.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/81918 //@ check-pass //@ dont-check-compiler-stdout //@ compile-flags: -Z unpretty=mir-cfg diff --git a/tests/ui/mir/mir_raw_fat_ptr.stderr b/tests/ui/mir/mir_raw_fat_ptr.stderr index cd99d566654..d1f91a79acc 100644 --- a/tests/ui/mir/mir_raw_fat_ptr.stderr +++ b/tests/ui/mir/mir_raw_fat_ptr.stderr @@ -6,7 +6,7 @@ LL | trait Foo { fn foo(&self) -> usize; } | | | method in this trait | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/mir/validate/ice-zst-as-discr-145786.rs b/tests/ui/mir/validate/ice-zst-as-discr-145786.rs new file mode 100644 index 00000000000..616736bcf12 --- /dev/null +++ b/tests/ui/mir/validate/ice-zst-as-discr-145786.rs @@ -0,0 +1,14 @@ +// Do not attempt to take the discriminant as the source +// converted to a `u128`, that won't work for ZST. +// +//@ compile-flags: -Zvalidate-mir + +enum A { + B, + C, +} + +fn main() { + let _: A = unsafe { std::mem::transmute(()) }; + //~^ ERROR cannot transmute between types of different sizes, or dependently-sized types +} diff --git a/tests/ui/mir/validate/ice-zst-as-discr-145786.stderr b/tests/ui/mir/validate/ice-zst-as-discr-145786.stderr new file mode 100644 index 00000000000..b0bca1eb39c --- /dev/null +++ b/tests/ui/mir/validate/ice-zst-as-discr-145786.stderr @@ -0,0 +1,12 @@ +error[E0512]: cannot transmute between types of different sizes, or dependently-sized types + --> $DIR/ice-zst-as-discr-145786.rs:12:25 + | +LL | let _: A = unsafe { std::mem::transmute(()) }; + | ^^^^^^^^^^^^^^^^^^^ + | + = note: source type: `()` (0 bits) + = note: target type: `A` (8 bits) + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0512`. diff --git a/tests/ui/issues/issue-87490.rs b/tests/ui/mismatched_types/mismatched-types-in-trait-implementation-87490.rs index 998f61a6bd3..67e16ec6ce3 100644 --- a/tests/ui/issues/issue-87490.rs +++ b/tests/ui/mismatched_types/mismatched-types-in-trait-implementation-87490.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/87490 fn main() {} trait StreamOnce { type Position; diff --git a/tests/ui/issues/issue-87490.stderr b/tests/ui/mismatched_types/mismatched-types-in-trait-implementation-87490.stderr index 5a4ec55833b..bbd73347d02 100644 --- a/tests/ui/issues/issue-87490.stderr +++ b/tests/ui/mismatched_types/mismatched-types-in-trait-implementation-87490.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/issue-87490.rs:9:5 + --> $DIR/mismatched-types-in-trait-implementation-87490.rs:10:5 | LL | fn follow(_: &str) -> <&str as StreamOnce>::Position { | ------------------------------ expected `usize` because of return type diff --git a/tests/ui/moves/issue-22536-copy-mustnt-zero.stderr b/tests/ui/moves/issue-22536-copy-mustnt-zero.stderr index b1fcdfa44c3..1be612af44c 100644 --- a/tests/ui/moves/issue-22536-copy-mustnt-zero.stderr +++ b/tests/ui/moves/issue-22536-copy-mustnt-zero.stderr @@ -7,7 +7,7 @@ LL | type Buffer: Copy; LL | fn foo(&self) {} | ^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/mut/mutable-enum-indirect.stderr b/tests/ui/mut/mutable-enum-indirect.stderr index 0b7783b3318..b15492357f5 100644 --- a/tests/ui/mut/mutable-enum-indirect.stderr +++ b/tests/ui/mut/mutable-enum-indirect.stderr @@ -6,7 +6,11 @@ LL | bar(&x); | | | required by a bound introduced by this call | - = help: within `&Foo`, the trait `Sync` is not implemented for `NoSync` +help: within `&Foo`, the trait `Sync` is not implemented for `NoSync` + --> $DIR/mutable-enum-indirect.rs:8:1 + | +LL | struct NoSync; + | ^^^^^^^^^^^^^ note: required because it appears within the type `Foo` --> $DIR/mutable-enum-indirect.rs:11:6 | diff --git a/tests/ui/namespace/namespace-mix.stderr b/tests/ui/namespace/namespace-mix.stderr index 200d31cc710..7c889f34e91 100644 --- a/tests/ui/namespace/namespace-mix.stderr +++ b/tests/ui/namespace/namespace-mix.stderr @@ -106,10 +106,15 @@ error[E0277]: the trait bound `c::Item: Impossible` is not satisfied --> $DIR/namespace-mix.rs:33:11 | LL | check(m1::S{}); - | ----- ^^^^^^^ the trait `Impossible` is not implemented for `c::Item` + | ----- ^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::Item` + --> $DIR/namespace-mix.rs:16:5 + | +LL | pub struct Item; + | ^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -125,10 +130,15 @@ error[E0277]: the trait bound `c::S: Impossible` is not satisfied --> $DIR/namespace-mix.rs:35:11 | LL | check(m2::S{}); - | ----- ^^^^^^^ the trait `Impossible` is not implemented for `c::S` + | ----- ^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::S` + --> $DIR/namespace-mix.rs:7:5 + | +LL | pub struct S {} + | ^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -144,10 +154,15 @@ error[E0277]: the trait bound `c::Item: Impossible` is not satisfied --> $DIR/namespace-mix.rs:36:11 | LL | check(m2::S); - | ----- ^^^^^ the trait `Impossible` is not implemented for `c::Item` + | ----- ^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::Item` + --> $DIR/namespace-mix.rs:16:5 + | +LL | pub struct Item; + | ^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -220,10 +235,15 @@ error[E0277]: the trait bound `c::Item: Impossible` is not satisfied --> $DIR/namespace-mix.rs:55:11 | LL | check(m3::TS{}); - | ----- ^^^^^^^^ the trait `Impossible` is not implemented for `c::Item` + | ----- ^^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::Item` + --> $DIR/namespace-mix.rs:16:5 + | +LL | pub struct Item; + | ^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -258,10 +278,15 @@ error[E0277]: the trait bound `c::TS: Impossible` is not satisfied --> $DIR/namespace-mix.rs:57:11 | LL | check(m4::TS{}); - | ----- ^^^^^^^^ the trait `Impossible` is not implemented for `c::TS` + | ----- ^^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::TS` + --> $DIR/namespace-mix.rs:8:5 + | +LL | pub struct TS(); + | ^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -277,10 +302,15 @@ error[E0277]: the trait bound `c::Item: Impossible` is not satisfied --> $DIR/namespace-mix.rs:58:11 | LL | check(m4::TS); - | ----- ^^^^^^ the trait `Impossible` is not implemented for `c::Item` + | ----- ^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::Item` + --> $DIR/namespace-mix.rs:16:5 + | +LL | pub struct Item; + | ^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -372,10 +402,15 @@ error[E0277]: the trait bound `c::Item: Impossible` is not satisfied --> $DIR/namespace-mix.rs:77:11 | LL | check(m5::US{}); - | ----- ^^^^^^^^ the trait `Impossible` is not implemented for `c::Item` + | ----- ^^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::Item` + --> $DIR/namespace-mix.rs:16:5 + | +LL | pub struct Item; + | ^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -391,10 +426,15 @@ error[E0277]: the trait bound `c::US: Impossible` is not satisfied --> $DIR/namespace-mix.rs:78:11 | LL | check(m5::US); - | ----- ^^^^^^ the trait `Impossible` is not implemented for `c::US` + | ----- ^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::US` + --> $DIR/namespace-mix.rs:9:5 + | +LL | pub struct US; + | ^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -410,10 +450,15 @@ error[E0277]: the trait bound `c::US: Impossible` is not satisfied --> $DIR/namespace-mix.rs:79:11 | LL | check(m6::US{}); - | ----- ^^^^^^^^ the trait `Impossible` is not implemented for `c::US` + | ----- ^^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::US` + --> $DIR/namespace-mix.rs:9:5 + | +LL | pub struct US; + | ^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -429,10 +474,15 @@ error[E0277]: the trait bound `c::Item: Impossible` is not satisfied --> $DIR/namespace-mix.rs:80:11 | LL | check(m6::US); - | ----- ^^^^^^ the trait `Impossible` is not implemented for `c::Item` + | ----- ^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::Item` + --> $DIR/namespace-mix.rs:16:5 + | +LL | pub struct Item; + | ^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -524,10 +574,15 @@ error[E0277]: the trait bound `c::Item: Impossible` is not satisfied --> $DIR/namespace-mix.rs:99:11 | LL | check(m7::V{}); - | ----- ^^^^^^^ the trait `Impossible` is not implemented for `c::Item` + | ----- ^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::Item` + --> $DIR/namespace-mix.rs:16:5 + | +LL | pub struct Item; + | ^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -543,10 +598,15 @@ error[E0277]: the trait bound `c::E: Impossible` is not satisfied --> $DIR/namespace-mix.rs:101:11 | LL | check(m8::V{}); - | ----- ^^^^^^^ the trait `Impossible` is not implemented for `c::E` + | ----- ^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::E` + --> $DIR/namespace-mix.rs:10:5 + | +LL | pub enum E { + | ^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -562,10 +622,15 @@ error[E0277]: the trait bound `c::Item: Impossible` is not satisfied --> $DIR/namespace-mix.rs:102:11 | LL | check(m8::V); - | ----- ^^^^^ the trait `Impossible` is not implemented for `c::Item` + | ----- ^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::Item` + --> $DIR/namespace-mix.rs:16:5 + | +LL | pub struct Item; + | ^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -638,10 +703,15 @@ error[E0277]: the trait bound `c::Item: Impossible` is not satisfied --> $DIR/namespace-mix.rs:121:11 | LL | check(m9::TV{}); - | ----- ^^^^^^^^ the trait `Impossible` is not implemented for `c::Item` + | ----- ^^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::Item` + --> $DIR/namespace-mix.rs:16:5 + | +LL | pub struct Item; + | ^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -676,10 +746,15 @@ error[E0277]: the trait bound `c::E: Impossible` is not satisfied --> $DIR/namespace-mix.rs:123:11 | LL | check(mA::TV{}); - | ----- ^^^^^^^^ the trait `Impossible` is not implemented for `c::E` + | ----- ^^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::E` + --> $DIR/namespace-mix.rs:10:5 + | +LL | pub enum E { + | ^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -695,10 +770,15 @@ error[E0277]: the trait bound `c::Item: Impossible` is not satisfied --> $DIR/namespace-mix.rs:124:11 | LL | check(mA::TV); - | ----- ^^^^^^ the trait `Impossible` is not implemented for `c::Item` + | ----- ^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::Item` + --> $DIR/namespace-mix.rs:16:5 + | +LL | pub struct Item; + | ^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -790,10 +870,15 @@ error[E0277]: the trait bound `c::Item: Impossible` is not satisfied --> $DIR/namespace-mix.rs:143:11 | LL | check(mB::UV{}); - | ----- ^^^^^^^^ the trait `Impossible` is not implemented for `c::Item` + | ----- ^^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::Item` + --> $DIR/namespace-mix.rs:16:5 + | +LL | pub struct Item; + | ^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -809,10 +894,15 @@ error[E0277]: the trait bound `c::E: Impossible` is not satisfied --> $DIR/namespace-mix.rs:144:11 | LL | check(mB::UV); - | ----- ^^^^^^ the trait `Impossible` is not implemented for `c::E` + | ----- ^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::E` + --> $DIR/namespace-mix.rs:10:5 + | +LL | pub enum E { + | ^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -828,10 +918,15 @@ error[E0277]: the trait bound `c::E: Impossible` is not satisfied --> $DIR/namespace-mix.rs:145:11 | LL | check(mC::UV{}); - | ----- ^^^^^^^^ the trait `Impossible` is not implemented for `c::E` + | ----- ^^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::E` + --> $DIR/namespace-mix.rs:10:5 + | +LL | pub enum E { + | ^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | @@ -847,10 +942,15 @@ error[E0277]: the trait bound `c::Item: Impossible` is not satisfied --> $DIR/namespace-mix.rs:146:11 | LL | check(mC::UV); - | ----- ^^^^^^ the trait `Impossible` is not implemented for `c::Item` + | ----- ^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Impossible` is not implemented for `c::Item` + --> $DIR/namespace-mix.rs:16:5 + | +LL | pub struct Item; + | ^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/namespace-mix.rs:20:1 | diff --git a/tests/ui/never_type/defaulted-never-note.nofallback.stderr b/tests/ui/never_type/defaulted-never-note.nofallback.stderr index b7df6fb7a67..b82bea0bc48 100644 --- a/tests/ui/never_type/defaulted-never-note.nofallback.stderr +++ b/tests/ui/never_type/defaulted-never-note.nofallback.stderr @@ -12,7 +12,7 @@ note: in edition 2024, the requirement `!: ImplementedForUnitButNotNever` will f | LL | foo(_x); | ^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | let _x: () = return; @@ -35,7 +35,7 @@ note: in edition 2024, the requirement `!: ImplementedForUnitButNotNever` will f | LL | foo(_x); | ^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | let _x: () = return; diff --git a/tests/ui/never_type/dependency-on-fallback-to-unit.stderr b/tests/ui/never_type/dependency-on-fallback-to-unit.stderr index 6ee57d531fb..6394bab8952 100644 --- a/tests/ui/never_type/dependency-on-fallback-to-unit.stderr +++ b/tests/ui/never_type/dependency-on-fallback-to-unit.stderr @@ -12,7 +12,7 @@ note: in edition 2024, the requirement `!: Default` will fail | LL | false => <_>::default(), | ^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL - false => <_>::default(), @@ -55,7 +55,7 @@ note: in edition 2024, the requirement `!: Default` will fail | LL | false => <_>::default(), | ^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL - false => <_>::default(), @@ -77,7 +77,7 @@ note: in edition 2024, the requirement `!: Default` will fail | LL | deserialize()?; | ^^^^^^^^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | deserialize::<()>()?; diff --git a/tests/ui/never_type/diverging-fallback-control-flow.nofallback.stderr b/tests/ui/never_type/diverging-fallback-control-flow.nofallback.stderr index 64a8ecdf546..7f857c83655 100644 --- a/tests/ui/never_type/diverging-fallback-control-flow.nofallback.stderr +++ b/tests/ui/never_type/diverging-fallback-control-flow.nofallback.stderr @@ -12,7 +12,7 @@ note: in edition 2024, the requirement `!: UnitDefault` will fail | LL | x = UnitDefault::default(); | ^^^^^^^^^^^^^^^^^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | let x: (); @@ -54,7 +54,7 @@ note: in edition 2024, the requirement `!: UnitDefault` will fail | LL | x = UnitDefault::default(); | ^^^^^^^^^^^^^^^^^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | let x: (); @@ -75,7 +75,7 @@ note: in edition 2024, the requirement `!: UnitDefault` will fail | LL | x = UnitDefault::default(); | ^^^^^^^^^^^^^^^^^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | let x: (); diff --git a/tests/ui/never_type/diverging-fallback-no-leak.nofallback.stderr b/tests/ui/never_type/diverging-fallback-no-leak.nofallback.stderr index ec48c38b6d7..d4bb5f9442e 100644 --- a/tests/ui/never_type/diverging-fallback-no-leak.nofallback.stderr +++ b/tests/ui/never_type/diverging-fallback-no-leak.nofallback.stderr @@ -12,7 +12,7 @@ note: in edition 2024, the requirement `!: Test` will fail | LL | unconstrained_arg(return); | ^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | unconstrained_arg::<()>(return); @@ -35,7 +35,7 @@ note: in edition 2024, the requirement `!: Test` will fail | LL | unconstrained_arg(return); | ^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | unconstrained_arg::<()>(return); diff --git a/tests/ui/never_type/diverging-fallback-unconstrained-return.nofallback.stderr b/tests/ui/never_type/diverging-fallback-unconstrained-return.nofallback.stderr index 48debdd61c8..a706ad8b09b 100644 --- a/tests/ui/never_type/diverging-fallback-unconstrained-return.nofallback.stderr +++ b/tests/ui/never_type/diverging-fallback-unconstrained-return.nofallback.stderr @@ -12,7 +12,7 @@ note: in edition 2024, the requirement `!: UnitReturn` will fail | LL | let _ = if true { unconstrained_return() } else { panic!() }; | ^^^^^^^^^^^^^^^^^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | let _: () = if true { unconstrained_return() } else { panic!() }; @@ -35,7 +35,7 @@ note: in edition 2024, the requirement `!: UnitReturn` will fail | LL | let _ = if true { unconstrained_return() } else { panic!() }; | ^^^^^^^^^^^^^^^^^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | let _: () = if true { unconstrained_return() } else { panic!() }; diff --git a/tests/ui/never_type/fallback-closure-ret.nofallback.stderr b/tests/ui/never_type/fallback-closure-ret.nofallback.stderr index 5651a265888..39b40cdd76d 100644 --- a/tests/ui/never_type/fallback-closure-ret.nofallback.stderr +++ b/tests/ui/never_type/fallback-closure-ret.nofallback.stderr @@ -12,7 +12,7 @@ note: in edition 2024, the requirement `!: Bar` will fail | LL | foo(|| panic!()); | ^^^^^^^^^^^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | foo::<()>(|| panic!()); @@ -35,7 +35,7 @@ note: in edition 2024, the requirement `!: Bar` will fail | LL | foo(|| panic!()); | ^^^^^^^^^^^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | foo::<()>(|| panic!()); diff --git a/tests/ui/never_type/from_infer_breaking_with_unit_fallback.unit.stderr b/tests/ui/never_type/from_infer_breaking_with_unit_fallback.unit.stderr index 9eacab9a0b7..891b6ea8046 100644 --- a/tests/ui/never_type/from_infer_breaking_with_unit_fallback.unit.stderr +++ b/tests/ui/never_type/from_infer_breaking_with_unit_fallback.unit.stderr @@ -2,7 +2,7 @@ error[E0277]: the trait bound `E: From<()>` is not satisfied --> $DIR/from_infer_breaking_with_unit_fallback.rs:25:6 | LL | <E as From<_>>::from(never); // Should the inference fail? - | ^ the trait `From<()>` is not implemented for `E` + | ^ unsatisfied trait bound | = help: the trait `From<()>` is not implemented for `E` but trait `From<!>` is implemented for it diff --git a/tests/ui/never_type/impl_trait_fallback.stderr b/tests/ui/never_type/impl_trait_fallback.stderr index 36d2eae1df2..7d8624b1fe5 100644 --- a/tests/ui/never_type/impl_trait_fallback.stderr +++ b/tests/ui/never_type/impl_trait_fallback.stderr @@ -12,7 +12,7 @@ note: in edition 2024, the requirement `!: T` will fail | LL | fn should_ret_unit() -> impl T { | ^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default warning: 1 warning emitted @@ -31,5 +31,5 @@ note: in edition 2024, the requirement `!: T` will fail | LL | fn should_ret_unit() -> impl T { | ^^^^^^ - = note: `#[warn(dependency_on_unit_never_type_fallback)]` on by default + = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default diff --git a/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.e2015.stderr b/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.e2015.stderr index 48734f3b3f8..f9d0a89eabc 100644 --- a/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.e2015.stderr +++ b/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.e2015.stderr @@ -7,7 +7,7 @@ LL | unsafe { mem::zeroed() } = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | unsafe { mem::zeroed::<()>() } @@ -143,7 +143,7 @@ LL | unsafe { mem::zeroed() } = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | unsafe { mem::zeroed::<()>() } @@ -159,7 +159,7 @@ LL | core::mem::transmute(Zst) = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | core::mem::transmute::<_, ()>(Zst) @@ -175,7 +175,7 @@ LL | unsafe { Union { a: () }.b } = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` (part of `#[warn(rust_2024_compatibility)]`) on by default Future breakage diagnostic: warning: never type fallback affects this raw pointer dereference @@ -187,7 +187,7 @@ LL | unsafe { *ptr::from_ref(&()).cast() } = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | unsafe { *ptr::from_ref(&()).cast::<()>() } @@ -203,7 +203,7 @@ LL | unsafe { internally_create(x) } = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | unsafe { internally_create::<()>(x) } @@ -219,7 +219,7 @@ LL | unsafe { zeroed() } = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | let zeroed = mem::zeroed::<()>; @@ -235,7 +235,7 @@ LL | let zeroed = mem::zeroed; = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | let zeroed = mem::zeroed::<()>; @@ -251,7 +251,7 @@ LL | let f = internally_create; = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | let f = internally_create::<()>; @@ -267,7 +267,7 @@ LL | S(marker::PhantomData).create_out_of_thin_air() = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` (part of `#[warn(rust_2024_compatibility)]`) on by default Future breakage diagnostic: warning: never type fallback affects this call to an `unsafe` function @@ -282,6 +282,6 @@ LL | msg_send!(); = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` (part of `#[warn(rust_2024_compatibility)]`) on by default = note: this warning originates in the macro `msg_send` (in Nightly builds, run with -Z macro-backtrace for more info) diff --git a/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.e2024.stderr b/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.e2024.stderr index 8039ef427c1..7205c13cc2a 100644 --- a/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.e2024.stderr +++ b/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.e2024.stderr @@ -7,7 +7,7 @@ LL | unsafe { mem::zeroed() } = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` (part of `#[deny(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | unsafe { mem::zeroed::<()>() } @@ -152,7 +152,7 @@ LL | unsafe { mem::zeroed() } = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` (part of `#[deny(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | unsafe { mem::zeroed::<()>() } @@ -168,7 +168,7 @@ LL | core::mem::transmute(Zst) = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` (part of `#[deny(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | core::mem::transmute::<_, ()>(Zst) @@ -184,7 +184,7 @@ LL | unsafe { Union { a: () }.b } = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` (part of `#[deny(rust_2024_compatibility)]`) on by default Future breakage diagnostic: error: never type fallback affects this raw pointer dereference @@ -196,7 +196,7 @@ LL | unsafe { *ptr::from_ref(&()).cast() } = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` (part of `#[deny(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | unsafe { *ptr::from_ref(&()).cast::<()>() } @@ -212,7 +212,7 @@ LL | unsafe { internally_create(x) } = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` (part of `#[deny(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | unsafe { internally_create::<()>(x) } @@ -228,7 +228,7 @@ LL | unsafe { zeroed() } = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` (part of `#[deny(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | let zeroed = mem::zeroed::<()>; @@ -244,7 +244,7 @@ LL | let zeroed = mem::zeroed; = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` (part of `#[deny(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | let zeroed = mem::zeroed::<()>; @@ -260,7 +260,7 @@ LL | let f = internally_create; = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` (part of `#[deny(rust_2024_compatibility)]`) on by default help: use `()` annotations to avoid fallback changes | LL | let f = internally_create::<()>; @@ -276,7 +276,7 @@ LL | S(marker::PhantomData).create_out_of_thin_air() = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` (part of `#[deny(rust_2024_compatibility)]`) on by default Future breakage diagnostic: error: never type fallback affects this call to an `unsafe` function @@ -291,6 +291,6 @@ LL | msg_send!(); = warning: this changes meaning in Rust 2024 and in a future release in all editions! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html> = help: specify the type explicitly - = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` on by default + = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` (part of `#[deny(rust_2024_compatibility)]`) on by default = note: this error originates in the macro `msg_send` (in Nightly builds, run with -Z macro-backtrace for more info) diff --git a/tests/ui/never_type/never-value-fallback-issue-66757.nofallback.stderr b/tests/ui/never_type/never-value-fallback-issue-66757.nofallback.stderr index d6234c8e7e1..cd34cd9e88e 100644 --- a/tests/ui/never_type/never-value-fallback-issue-66757.nofallback.stderr +++ b/tests/ui/never_type/never-value-fallback-issue-66757.nofallback.stderr @@ -2,7 +2,7 @@ error[E0277]: the trait bound `E: From<()>` is not satisfied --> $DIR/never-value-fallback-issue-66757.rs:28:6 | LL | <E as From<_>>::from(never); - | ^ the trait `From<()>` is not implemented for `E` + | ^ unsatisfied trait bound | = help: the trait `From<()>` is not implemented for `E` but trait `From<!>` is implemented for it diff --git a/tests/ui/nll/borrowck-thread-local-static-mut-borrow-outlives-fn.stderr b/tests/ui/nll/borrowck-thread-local-static-mut-borrow-outlives-fn.stderr index 331c6510ce7..63744c15fda 100644 --- a/tests/ui/nll/borrowck-thread-local-static-mut-borrow-outlives-fn.stderr +++ b/tests/ui/nll/borrowck-thread-local-static-mut-borrow-outlives-fn.stderr @@ -6,7 +6,7 @@ LL | S1 { a: unsafe { &mut X1 } } | = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html> = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives - = note: `#[warn(static_mut_refs)]` on by default + = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `&raw mut` instead to create a raw pointer | LL | S1 { a: unsafe { &raw mut X1 } } diff --git a/tests/ui/nll/issue-48623-coroutine.stderr b/tests/ui/nll/issue-48623-coroutine.stderr index 4e4cd28ef2a..2862d7b2a2f 100644 --- a/tests/ui/nll/issue-48623-coroutine.stderr +++ b/tests/ui/nll/issue-48623-coroutine.stderr @@ -5,7 +5,7 @@ LL | #[coroutine] move || { d; yield; &mut *r }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: coroutines are lazy and do nothing unless resumed - = note: `#[warn(unused_must_use)]` on by default + = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/on-unimplemented/no-debug.stderr b/tests/ui/on-unimplemented/no-debug.stderr index 5b0b060d40e..1e6fa7d52fa 100644 --- a/tests/ui/on-unimplemented/no-debug.stderr +++ b/tests/ui/on-unimplemented/no-debug.stderr @@ -34,7 +34,11 @@ LL | println!("{} {}", Foo, Bar); | | | required by this formatting parameter | - = help: the trait `std::fmt::Display` is not implemented for `Foo` +help: the trait `std::fmt::Display` is not implemented for `Foo` + --> $DIR/no-debug.rs:7:1 + | +LL | struct Foo; + | ^^^^^^^^^^ = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) diff --git a/tests/ui/on-unimplemented/parent-label.stderr b/tests/ui/on-unimplemented/parent-label.stderr index 101a41512d2..1160b24e325 100644 --- a/tests/ui/on-unimplemented/parent-label.stderr +++ b/tests/ui/on-unimplemented/parent-label.stderr @@ -4,10 +4,15 @@ error[E0277]: the trait bound `Foo: Trait` is not satisfied LL | let x = || { | -- in this scope LL | f(Foo {}); - | - ^^^^^^ the trait `Trait` is not implemented for `Foo` + | - ^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Trait` is not implemented for `Foo` + --> $DIR/parent-label.rs:8:1 + | +LL | struct Foo; + | ^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/parent-label.rs:6:1 | @@ -25,10 +30,15 @@ error[E0277]: the trait bound `Foo: Trait` is not satisfied LL | let y = || { | -- in this scope LL | f(Foo {}); - | - ^^^^^^ the trait `Trait` is not implemented for `Foo` + | - ^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Trait` is not implemented for `Foo` + --> $DIR/parent-label.rs:8:1 + | +LL | struct Foo; + | ^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/parent-label.rs:6:1 | @@ -47,10 +57,15 @@ LL | fn main() { | --------- in this scope ... LL | f(Foo {}); - | - ^^^^^^ the trait `Trait` is not implemented for `Foo` + | - ^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Trait` is not implemented for `Foo` + --> $DIR/parent-label.rs:8:1 + | +LL | struct Foo; + | ^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/parent-label.rs:6:1 | @@ -69,10 +84,15 @@ LL | fn main() { | --------- in this scope ... LL | f(Foo {}); - | - ^^^^^^ the trait `Trait` is not implemented for `Foo` + | - ^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Trait` is not implemented for `Foo` + --> $DIR/parent-label.rs:8:1 + | +LL | struct Foo; + | ^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/parent-label.rs:6:1 | diff --git a/tests/ui/on-unimplemented/suggest_tuple_wrap_root_obligation.rs b/tests/ui/on-unimplemented/suggest_tuple_wrap_root_obligation.rs index e0036d30187..0c195a58d57 100644 --- a/tests/ui/on-unimplemented/suggest_tuple_wrap_root_obligation.rs +++ b/tests/ui/on-unimplemented/suggest_tuple_wrap_root_obligation.rs @@ -1,4 +1,4 @@ -struct Tuple; +struct Tuple; //~ HELP the trait `From<u8>` is not implemented for `Tuple` impl From<(u8,)> for Tuple { fn from(_: (u8,)) -> Self { diff --git a/tests/ui/on-unimplemented/suggest_tuple_wrap_root_obligation.stderr b/tests/ui/on-unimplemented/suggest_tuple_wrap_root_obligation.stderr index 6ee08d2cd1b..c4156e1f128 100644 --- a/tests/ui/on-unimplemented/suggest_tuple_wrap_root_obligation.stderr +++ b/tests/ui/on-unimplemented/suggest_tuple_wrap_root_obligation.stderr @@ -2,10 +2,15 @@ error[E0277]: the trait bound `Tuple: From<u8>` is not satisfied --> $DIR/suggest_tuple_wrap_root_obligation.rs:22:24 | LL | convert_into_tuple(42_u8); - | ------------------ ^^^^^ the trait `From<u8>` is not implemented for `Tuple` + | ------------------ ^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `From<u8>` is not implemented for `Tuple` + --> $DIR/suggest_tuple_wrap_root_obligation.rs:1:1 + | +LL | struct Tuple; + | ^^^^^^^^^^^^ = help: the following other types implement trait `From<T>`: `Tuple` implements `From<(u8, u8)>` `Tuple` implements `From<(u8, u8, u8)>` diff --git a/tests/ui/or-patterns/exhaustiveness-non-exhaustive.rs b/tests/ui/or-patterns/exhaustiveness-non-exhaustive.rs index 5999e04e0e2..9c0b2648384 100644 --- a/tests/ui/or-patterns/exhaustiveness-non-exhaustive.rs +++ b/tests/ui/or-patterns/exhaustiveness-non-exhaustive.rs @@ -7,11 +7,11 @@ fn main() { (0 | 1, 2 | 3) => {} } match ((0u8,),) { - //~^ ERROR non-exhaustive patterns: `((4_u8..=u8::MAX))` + //~^ ERROR non-exhaustive patterns: `((4_u8..=u8::MAX,),)` ((0 | 1,) | (2 | 3,),) => {} } match (Some(0u8),) { - //~^ ERROR non-exhaustive patterns: `(Some(2_u8..=u8::MAX))` + //~^ ERROR non-exhaustive patterns: `(Some(2_u8..=u8::MAX),)` (None | Some(0 | 1),) => {} } } diff --git a/tests/ui/or-patterns/exhaustiveness-non-exhaustive.stderr b/tests/ui/or-patterns/exhaustiveness-non-exhaustive.stderr index 9f691aea8a7..fe3a4aa2afc 100644 --- a/tests/ui/or-patterns/exhaustiveness-non-exhaustive.stderr +++ b/tests/ui/or-patterns/exhaustiveness-non-exhaustive.stderr @@ -11,30 +11,30 @@ LL ~ (0 | 1, 2 | 3) => {}, LL + (2_u8..=u8::MAX, _) => todo!() | -error[E0004]: non-exhaustive patterns: `((4_u8..=u8::MAX))` not covered +error[E0004]: non-exhaustive patterns: `((4_u8..=u8::MAX,),)` not covered --> $DIR/exhaustiveness-non-exhaustive.rs:9:11 | LL | match ((0u8,),) { - | ^^^^^^^^^ pattern `((4_u8..=u8::MAX))` not covered + | ^^^^^^^^^ pattern `((4_u8..=u8::MAX,),)` not covered | = note: the matched value is of type `((u8,),)` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown | LL ~ ((0 | 1,) | (2 | 3,),) => {}, -LL + ((4_u8..=u8::MAX)) => todo!() +LL + ((4_u8..=u8::MAX,),) => todo!() | -error[E0004]: non-exhaustive patterns: `(Some(2_u8..=u8::MAX))` not covered +error[E0004]: non-exhaustive patterns: `(Some(2_u8..=u8::MAX),)` not covered --> $DIR/exhaustiveness-non-exhaustive.rs:13:11 | LL | match (Some(0u8),) { - | ^^^^^^^^^^^^ pattern `(Some(2_u8..=u8::MAX))` not covered + | ^^^^^^^^^^^^ pattern `(Some(2_u8..=u8::MAX),)` not covered | = note: the matched value is of type `(Option<u8>,)` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown | LL ~ (None | Some(0 | 1),) => {}, -LL + (Some(2_u8..=u8::MAX)) => todo!() +LL + (Some(2_u8..=u8::MAX),) => todo!() | error: aborting due to 3 previous errors diff --git a/tests/ui/overloaded/issue-14958.stderr b/tests/ui/overloaded/issue-14958.stderr index e4f527319e7..d07dba78dc3 100644 --- a/tests/ui/overloaded/issue-14958.stderr +++ b/tests/ui/overloaded/issue-14958.stderr @@ -6,7 +6,7 @@ LL | trait Foo { fn dummy(&self) { }} | | | method in this trait | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/overloaded/overloaded-index-in-field.stderr b/tests/ui/overloaded/overloaded-index-in-field.stderr index 10c0a3faeb5..5ff15ba0bcb 100644 --- a/tests/ui/overloaded/overloaded-index-in-field.stderr +++ b/tests/ui/overloaded/overloaded-index-in-field.stderr @@ -9,7 +9,7 @@ LL | fn get_from_ref(&self) -> isize; LL | fn inc(&mut self); | ^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/parallel-rustc/cache-after-waiting-issue-111528.rs b/tests/ui/parallel-rustc/cache-after-waiting-issue-111528.rs index 73d173022f6..a357040a4e4 100644 --- a/tests/ui/parallel-rustc/cache-after-waiting-issue-111528.rs +++ b/tests/ui/parallel-rustc/cache-after-waiting-issue-111528.rs @@ -1,16 +1,18 @@ +// Test for #111528, the ice issue cause waiting on a query that panicked +// //@ compile-flags: -Z threads=16 //@ build-fail +//@ compare-output-by-lines -#![crate_type="rlib"] +#![crate_type = "rlib"] #![allow(warnings)] -#[export_name="fail"] -pub fn a() { -} +#[export_name = "fail"] +pub fn a() {} -#[export_name="fail"] +#[export_name = "fail"] pub fn b() { -//~^ ERROR symbol `fail` is already defined + //~^ ERROR symbol `fail` is already defined } fn main() {} diff --git a/tests/ui/parallel-rustc/cache-after-waiting-issue-111528.stderr b/tests/ui/parallel-rustc/cache-after-waiting-issue-111528.stderr index 7963165e31b..80f63733fb3 100644 --- a/tests/ui/parallel-rustc/cache-after-waiting-issue-111528.stderr +++ b/tests/ui/parallel-rustc/cache-after-waiting-issue-111528.stderr @@ -1,5 +1,5 @@ error: symbol `fail` is already defined - --> $DIR/cache-after-waiting-issue-111528.rs:12:1 + --> $DIR/cache-after-waiting-issue-111528.rs:14:1 | LL | pub fn b() { | ^^^^^^^^^^ diff --git a/tests/ui/parallel-rustc/cycle_crash-issue-135870.rs b/tests/ui/parallel-rustc/cycle_crash-issue-135870.rs new file mode 100644 index 00000000000..4407e3aca80 --- /dev/null +++ b/tests/ui/parallel-rustc/cycle_crash-issue-135870.rs @@ -0,0 +1,8 @@ +// Test for #135870, which causes a deadlock bug +// +//@ compile-flags: -Z threads=2 +//@ compare-output-by-lines + +const FOO: usize = FOO; //~ ERROR cycle detected when simplifying constant for the type system `FOO` + +fn main() {} diff --git a/tests/ui/parallel-rustc/cycle_crash.stderr b/tests/ui/parallel-rustc/cycle_crash-issue-135870.stderr index 7af3b8ee532..6e588d1f894 100644 --- a/tests/ui/parallel-rustc/cycle_crash.stderr +++ b/tests/ui/parallel-rustc/cycle_crash-issue-135870.stderr @@ -1,11 +1,11 @@ error[E0391]: cycle detected when simplifying constant for the type system `FOO` - --> $DIR/cycle_crash.rs:3:1 + --> $DIR/cycle_crash-issue-135870.rs:6:1 | LL | const FOO: usize = FOO; | ^^^^^^^^^^^^^^^^ | note: ...which requires const-evaluating + checking `FOO`... - --> $DIR/cycle_crash.rs:3:20 + --> $DIR/cycle_crash-issue-135870.rs:6:20 | LL | const FOO: usize = FOO; | ^^^ diff --git a/tests/ui/parallel-rustc/cycle_crash.rs b/tests/ui/parallel-rustc/cycle_crash.rs deleted file mode 100644 index 94ae11aef39..00000000000 --- a/tests/ui/parallel-rustc/cycle_crash.rs +++ /dev/null @@ -1,5 +0,0 @@ -//@ compile-flags: -Z threads=2 - -const FOO: usize = FOO; //~ERROR cycle detected when simplifying constant for the type system `FOO` - -fn main() {} diff --git a/tests/ui/parallel-rustc/export-symbols-deadlock-issue-118205-2.rs b/tests/ui/parallel-rustc/export-symbols-deadlock-issue-118205-2.rs index 024df728736..523b1b2d1f3 100644 --- a/tests/ui/parallel-rustc/export-symbols-deadlock-issue-118205-2.rs +++ b/tests/ui/parallel-rustc/export-symbols-deadlock-issue-118205-2.rs @@ -1,6 +1,10 @@ +// Test for #118205, which causes a deadlock bug +// //@ compile-flags:-C extra-filename=-1 -Z threads=16 //@ no-prefer-dynamic //@ build-pass +//@ compare-output-by-lines + #![crate_name = "crateresolve1"] #![crate_type = "lib"] diff --git a/tests/ui/parallel-rustc/export-symbols-deadlock-issue-118205.rs b/tests/ui/parallel-rustc/export-symbols-deadlock-issue-118205.rs index 3ccc1ea5f10..65f99c30643 100644 --- a/tests/ui/parallel-rustc/export-symbols-deadlock-issue-118205.rs +++ b/tests/ui/parallel-rustc/export-symbols-deadlock-issue-118205.rs @@ -1,5 +1,8 @@ +// Test for #118205, which causes a deadlock bug +// //@ compile-flags: -Z threads=16 //@ build-pass +//@ compare-output-by-lines pub static GLOBAL: isize = 3; diff --git a/tests/ui/parallel-rustc/hello_world.rs b/tests/ui/parallel-rustc/hello_world.rs index 56698fe2489..57891b92da0 100644 --- a/tests/ui/parallel-rustc/hello_world.rs +++ b/tests/ui/parallel-rustc/hello_world.rs @@ -1,5 +1,8 @@ +// Test for the basic function of parallel front end +// //@ compile-flags: -Z threads=8 //@ run-pass +//@ compare-output-by-lines fn main() { println!("Hello world!"); diff --git a/tests/ui/parallel-rustc/read-stolen-value-issue-111520.rs b/tests/ui/parallel-rustc/read-stolen-value-issue-111520.rs index ea8ecb67859..a6b37e62913 100644 --- a/tests/ui/parallel-rustc/read-stolen-value-issue-111520.rs +++ b/tests/ui/parallel-rustc/read-stolen-value-issue-111520.rs @@ -1,18 +1,21 @@ +// Test for #111520, which causes an ice bug cause of reading stolen value +// //@ compile-flags: -Z threads=16 //@ run-pass +//@ compare-output-by-lines #[repr(transparent)] struct Sched { i: i32, } impl Sched { - extern "C" fn get(self) -> i32 { self.i } + extern "C" fn get(self) -> i32 { + self.i + } } fn main() { let s = Sched { i: 4 }; - let f = || -> i32 { - s.get() - }; + let f = || -> i32 { s.get() }; println!("f: {}", f()); } diff --git a/tests/ui/parallel-rustc/ty-variance-issue-124423.rs b/tests/ui/parallel-rustc/ty-variance-issue-124423.rs new file mode 100644 index 00000000000..8d7f29f7764 --- /dev/null +++ b/tests/ui/parallel-rustc/ty-variance-issue-124423.rs @@ -0,0 +1,58 @@ +// Test for #124423, which causes an ice bug: only `variances_of` returns `&[ty::Variance]` +// +//@ compile-flags: -Z threads=16 +//@ compare-output-by-lines + +use std::fmt::Debug; + +fn elided(_: &impl Copy + 'a) -> _ { x } +//~^ ERROR ambiguous `+` in a type +//~| ERROR use of undeclared lifetime name `'a` +//~| ERROR the placeholder `_` is not allowed within types on item signatures for return types + +fn explicit<'b>(_: &'a impl Copy + 'a) -> impl 'a { x } +//~^ ERROR ambiguous `+` in a type +//~| ERROR at least one trait must be specified +//~| ERROR use of undeclared lifetime name `'a` +//~| ERROR use of undeclared lifetime name `'a` +//~| ERROR use of undeclared lifetime name `'a` + +fn elided2( impl 'b) -> impl 'a + 'a { x } +//~^ ERROR expected one of `:` or `|`, found `'b` +//~| ERROR expected identifier, found keyword `impl` +//~| ERROR at least one trait must be specified +//~| ERROR use of undeclared lifetime name `'a` +//~| ERROR use of undeclared lifetime name `'a` + +fn explicit2<'a>(_: &'a impl Copy + 'a) -> impl Copy + 'a { x } +//~^ ERROR ambiguous `+` in a type + +fn foo<'a>(_: &impl Copy + 'a) -> impl 'b + 'a { x } +//~^ ERROR ambiguous `+` in a type +//~| ERROR at least one trait must be specified +//~| ERROR use of undeclared lifetime name `'b` + +fn elided3(_: &impl Copy + 'a) -> Box<dyn 'a> { Box::new(x) } +//~^ ERROR ambiguous `+` in a type +//~| ERROR use of undeclared lifetime name `'a` +//~| ERROR use of undeclared lifetime name `'a` +//~| ERROR at least one trait is required for an object type + +fn x<'b>(_: &'a impl Copy + 'a) -> Box<dyn 'b> { Box::u32(x) } +//~^ ERROR ambiguous `+` in a type +//~| ERROR use of undeclared lifetime name `'a` +//~| ERROR use of undeclared lifetime name `'a` +//~| ERROR at least one trait is required for an object type +//~| ERROR no function or associated item named `u32` found for struct `Box<_, _>` in the current scope + +fn elided4(_: &impl Copy + 'a) -> new { x(x) } +//~^ ERROR ambiguous `+` in a type +//~| ERROR use of undeclared lifetime name `'a` +//~| ERROR cannot find type `new` in this scope + +trait LifetimeTrait<'a> {} + +impl<'a> LifetimeTrait<'a> for &'a Box<dyn 'a> {} +//~^ ERROR at least one trait is required for an object type + +fn main() {} diff --git a/tests/ui/parallel-rustc/ty-variance-issue-124423.stderr b/tests/ui/parallel-rustc/ty-variance-issue-124423.stderr new file mode 100644 index 00000000000..7ba89f75bd1 --- /dev/null +++ b/tests/ui/parallel-rustc/ty-variance-issue-124423.stderr @@ -0,0 +1,287 @@ +error: ambiguous `+` in a type + --> $DIR/ty-variance-issue-124423.rs:8:15 + | +LL | fn elided(_: &impl Copy + 'a) -> _ { x } + | ^^^^^^^^^^^^^^ + | +help: try adding parentheses + | +LL | fn elided(_: &(impl Copy + 'a)) -> _ { x } + | + + + +error: ambiguous `+` in a type + --> $DIR/ty-variance-issue-124423.rs:13:24 + | +LL | fn explicit<'b>(_: &'a impl Copy + 'a) -> impl 'a { x } + | ^^^^^^^^^^^^^^ + | +help: try adding parentheses + | +LL | fn explicit<'b>(_: &'a (impl Copy + 'a)) -> impl 'a { x } + | + + + +error: expected identifier, found keyword `impl` + --> $DIR/ty-variance-issue-124423.rs:20:13 + | +LL | fn elided2( impl 'b) -> impl 'a + 'a { x } + | ^^^^ expected identifier, found keyword + +error: expected one of `:` or `|`, found `'b` + --> $DIR/ty-variance-issue-124423.rs:20:18 + | +LL | fn elided2( impl 'b) -> impl 'a + 'a { x } + | ^^ expected one of `:` or `|` + +error: ambiguous `+` in a type + --> $DIR/ty-variance-issue-124423.rs:27:25 + | +LL | fn explicit2<'a>(_: &'a impl Copy + 'a) -> impl Copy + 'a { x } + | ^^^^^^^^^^^^^^ + | +help: try adding parentheses + | +LL | fn explicit2<'a>(_: &'a (impl Copy + 'a)) -> impl Copy + 'a { x } + | + + + +error: ambiguous `+` in a type + --> $DIR/ty-variance-issue-124423.rs:30:16 + | +LL | fn foo<'a>(_: &impl Copy + 'a) -> impl 'b + 'a { x } + | ^^^^^^^^^^^^^^ + | +help: try adding parentheses + | +LL | fn foo<'a>(_: &(impl Copy + 'a)) -> impl 'b + 'a { x } + | + + + +error: ambiguous `+` in a type + --> $DIR/ty-variance-issue-124423.rs:35:16 + | +LL | fn elided3(_: &impl Copy + 'a) -> Box<dyn 'a> { Box::new(x) } + | ^^^^^^^^^^^^^^ + | +help: try adding parentheses + | +LL | fn elided3(_: &(impl Copy + 'a)) -> Box<dyn 'a> { Box::new(x) } + | + + + +error: ambiguous `+` in a type + --> $DIR/ty-variance-issue-124423.rs:41:17 + | +LL | fn x<'b>(_: &'a impl Copy + 'a) -> Box<dyn 'b> { Box::u32(x) } + | ^^^^^^^^^^^^^^ + | +help: try adding parentheses + | +LL | fn x<'b>(_: &'a (impl Copy + 'a)) -> Box<dyn 'b> { Box::u32(x) } + | + + + +error: ambiguous `+` in a type + --> $DIR/ty-variance-issue-124423.rs:48:16 + | +LL | fn elided4(_: &impl Copy + 'a) -> new { x(x) } + | ^^^^^^^^^^^^^^ + | +help: try adding parentheses + | +LL | fn elided4(_: &(impl Copy + 'a)) -> new { x(x) } + | + + + +error: at least one trait must be specified + --> $DIR/ty-variance-issue-124423.rs:13:43 + | +LL | fn explicit<'b>(_: &'a impl Copy + 'a) -> impl 'a { x } + | ^^^^^^^ + +error: at least one trait must be specified + --> $DIR/ty-variance-issue-124423.rs:20:25 + | +LL | fn elided2( impl 'b) -> impl 'a + 'a { x } + | ^^^^^^^^^^^^ + +error: at least one trait must be specified + --> $DIR/ty-variance-issue-124423.rs:30:35 + | +LL | fn foo<'a>(_: &impl Copy + 'a) -> impl 'b + 'a { x } + | ^^^^^^^^^^^^ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/ty-variance-issue-124423.rs:8:27 + | +LL | fn elided(_: &impl Copy + 'a) -> _ { x } + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn elided<'a>(_: &impl Copy + 'a) -> _ { x } + | ++++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/ty-variance-issue-124423.rs:13:21 + | +LL | fn explicit<'b>(_: &'a impl Copy + 'a) -> impl 'a { x } + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn explicit<'a, 'b>(_: &'a impl Copy + 'a) -> impl 'a { x } + | +++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/ty-variance-issue-124423.rs:13:36 + | +LL | fn explicit<'b>(_: &'a impl Copy + 'a) -> impl 'a { x } + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn explicit<'a, 'b>(_: &'a impl Copy + 'a) -> impl 'a { x } + | +++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/ty-variance-issue-124423.rs:13:48 + | +LL | fn explicit<'b>(_: &'a impl Copy + 'a) -> impl 'a { x } + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn explicit<'a, 'b>(_: &'a impl Copy + 'a) -> impl 'a { x } + | +++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/ty-variance-issue-124423.rs:20:30 + | +LL | fn elided2( impl 'b) -> impl 'a + 'a { x } + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn elided2<'a>( impl 'b) -> impl 'a + 'a { x } + | ++++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/ty-variance-issue-124423.rs:20:35 + | +LL | fn elided2( impl 'b) -> impl 'a + 'a { x } + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn elided2<'a>( impl 'b) -> impl 'a + 'a { x } + | ++++ + +error[E0261]: use of undeclared lifetime name `'b` + --> $DIR/ty-variance-issue-124423.rs:30:40 + | +LL | fn foo<'a>(_: &impl Copy + 'a) -> impl 'b + 'a { x } + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'b` here + | +LL | fn foo<'b, 'a>(_: &impl Copy + 'a) -> impl 'b + 'a { x } + | +++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/ty-variance-issue-124423.rs:35:28 + | +LL | fn elided3(_: &impl Copy + 'a) -> Box<dyn 'a> { Box::new(x) } + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn elided3<'a>(_: &impl Copy + 'a) -> Box<dyn 'a> { Box::new(x) } + | ++++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/ty-variance-issue-124423.rs:35:43 + | +LL | fn elided3(_: &impl Copy + 'a) -> Box<dyn 'a> { Box::new(x) } + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn elided3<'a>(_: &impl Copy + 'a) -> Box<dyn 'a> { Box::new(x) } + | ++++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/ty-variance-issue-124423.rs:41:14 + | +LL | fn x<'b>(_: &'a impl Copy + 'a) -> Box<dyn 'b> { Box::u32(x) } + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn x<'a, 'b>(_: &'a impl Copy + 'a) -> Box<dyn 'b> { Box::u32(x) } + | +++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/ty-variance-issue-124423.rs:41:29 + | +LL | fn x<'b>(_: &'a impl Copy + 'a) -> Box<dyn 'b> { Box::u32(x) } + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn x<'a, 'b>(_: &'a impl Copy + 'a) -> Box<dyn 'b> { Box::u32(x) } + | +++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/ty-variance-issue-124423.rs:48:28 + | +LL | fn elided4(_: &impl Copy + 'a) -> new { x(x) } + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn elided4<'a>(_: &impl Copy + 'a) -> new { x(x) } + | ++++ + +error[E0412]: cannot find type `new` in this scope + --> $DIR/ty-variance-issue-124423.rs:48:36 + | +LL | fn elided4(_: &impl Copy + 'a) -> new { x(x) } + | ^^^ not found in this scope + +error[E0224]: at least one trait is required for an object type + --> $DIR/ty-variance-issue-124423.rs:35:39 + | +LL | fn elided3(_: &impl Copy + 'a) -> Box<dyn 'a> { Box::new(x) } + | ^^^^^^ + +error[E0224]: at least one trait is required for an object type + --> $DIR/ty-variance-issue-124423.rs:41:40 + | +LL | fn x<'b>(_: &'a impl Copy + 'a) -> Box<dyn 'b> { Box::u32(x) } + | ^^^^^^ + +error[E0224]: at least one trait is required for an object type + --> $DIR/ty-variance-issue-124423.rs:55:40 + | +LL | impl<'a> LifetimeTrait<'a> for &'a Box<dyn 'a> {} + | ^^^^^^ + +error[E0121]: the placeholder `_` is not allowed within types on item signatures for return types + --> $DIR/ty-variance-issue-124423.rs:8:34 + | +LL | fn elided(_: &impl Copy + 'a) -> _ { x } + | ^ not allowed in type signatures + +error[E0599]: no function or associated item named `u32` found for struct `Box<_, _>` in the current scope + --> $DIR/ty-variance-issue-124423.rs:41:55 + | +LL | fn x<'b>(_: &'a impl Copy + 'a) -> Box<dyn 'b> { Box::u32(x) } + | ^^^ function or associated item not found in `Box<_, _>` + | +note: if you're trying to build a new `Box<_, _>` consider using one of the following associated functions: + Box::<T>::new + Box::<T>::new_uninit + Box::<T>::new_zeroed + Box::<T>::try_new + and 22 others + --> $SRC_DIR/alloc/src/boxed.rs:LL:COL + +error: aborting due to 30 previous errors + +Some errors have detailed explanations: E0121, E0224, E0261, E0412, E0599. +For more information about an error, try `rustc --explain E0121`. diff --git a/tests/ui/parallel-rustc/ty-variance-issue-127971.rs b/tests/ui/parallel-rustc/ty-variance-issue-127971.rs new file mode 100644 index 00000000000..a17916843e7 --- /dev/null +++ b/tests/ui/parallel-rustc/ty-variance-issue-127971.rs @@ -0,0 +1,25 @@ +// Test for #127971, which causes an ice bug: only `variances_of` returns `&[ty::Variance]` +// +//@ compile-flags: -Z threads=16 +//@ compare-output-by-lines + +use std::fmt::Debug; + +fn elided(_: &impl Copy + 'a) -> _ { x } +//~^ ERROR ambiguous `+` in a type +//~| ERROR use of undeclared lifetime name `'a` +//~| ERROR the placeholder `_` is not allowed within types on item signatures for return types + +fn foo<'a>(_: &impl Copy + 'a) -> impl 'b + 'a { x } +//~^ ERROR ambiguous `+` in a type +//~| ERROR at least one trait must be specified +//~| ERROR use of undeclared lifetime name `'b` + +fn x<'b>(_: &'a impl Copy + 'a) -> Box<dyn 'b> { Box::u32(x) } +//~^ ERROR ambiguous `+` in a type +//~| ERROR use of undeclared lifetime name `'a` +//~| ERROR use of undeclared lifetime name `'a` +//~| ERROR at least one trait is required for an object type +//~| ERROR no function or associated item named `u32` found for struct `Box<_, _>` in the current scope + +fn main() {} diff --git a/tests/ui/parallel-rustc/ty-variance-issue-127971.stderr b/tests/ui/parallel-rustc/ty-variance-issue-127971.stderr new file mode 100644 index 00000000000..9929d3ee22c --- /dev/null +++ b/tests/ui/parallel-rustc/ty-variance-issue-127971.stderr @@ -0,0 +1,113 @@ +error: ambiguous `+` in a type + --> $DIR/ty-variance-issue-127971.rs:8:15 + | +LL | fn elided(_: &impl Copy + 'a) -> _ { x } + | ^^^^^^^^^^^^^^ + | +help: try adding parentheses + | +LL | fn elided(_: &(impl Copy + 'a)) -> _ { x } + | + + + +error: ambiguous `+` in a type + --> $DIR/ty-variance-issue-127971.rs:13:16 + | +LL | fn foo<'a>(_: &impl Copy + 'a) -> impl 'b + 'a { x } + | ^^^^^^^^^^^^^^ + | +help: try adding parentheses + | +LL | fn foo<'a>(_: &(impl Copy + 'a)) -> impl 'b + 'a { x } + | + + + +error: ambiguous `+` in a type + --> $DIR/ty-variance-issue-127971.rs:18:17 + | +LL | fn x<'b>(_: &'a impl Copy + 'a) -> Box<dyn 'b> { Box::u32(x) } + | ^^^^^^^^^^^^^^ + | +help: try adding parentheses + | +LL | fn x<'b>(_: &'a (impl Copy + 'a)) -> Box<dyn 'b> { Box::u32(x) } + | + + + +error: at least one trait must be specified + --> $DIR/ty-variance-issue-127971.rs:13:35 + | +LL | fn foo<'a>(_: &impl Copy + 'a) -> impl 'b + 'a { x } + | ^^^^^^^^^^^^ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/ty-variance-issue-127971.rs:8:27 + | +LL | fn elided(_: &impl Copy + 'a) -> _ { x } + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn elided<'a>(_: &impl Copy + 'a) -> _ { x } + | ++++ + +error[E0261]: use of undeclared lifetime name `'b` + --> $DIR/ty-variance-issue-127971.rs:13:40 + | +LL | fn foo<'a>(_: &impl Copy + 'a) -> impl 'b + 'a { x } + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'b` here + | +LL | fn foo<'b, 'a>(_: &impl Copy + 'a) -> impl 'b + 'a { x } + | +++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/ty-variance-issue-127971.rs:18:14 + | +LL | fn x<'b>(_: &'a impl Copy + 'a) -> Box<dyn 'b> { Box::u32(x) } + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn x<'a, 'b>(_: &'a impl Copy + 'a) -> Box<dyn 'b> { Box::u32(x) } + | +++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/ty-variance-issue-127971.rs:18:29 + | +LL | fn x<'b>(_: &'a impl Copy + 'a) -> Box<dyn 'b> { Box::u32(x) } + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn x<'a, 'b>(_: &'a impl Copy + 'a) -> Box<dyn 'b> { Box::u32(x) } + | +++ + +error[E0224]: at least one trait is required for an object type + --> $DIR/ty-variance-issue-127971.rs:18:40 + | +LL | fn x<'b>(_: &'a impl Copy + 'a) -> Box<dyn 'b> { Box::u32(x) } + | ^^^^^^ + +error[E0121]: the placeholder `_` is not allowed within types on item signatures for return types + --> $DIR/ty-variance-issue-127971.rs:8:34 + | +LL | fn elided(_: &impl Copy + 'a) -> _ { x } + | ^ not allowed in type signatures + +error[E0599]: no function or associated item named `u32` found for struct `Box<_, _>` in the current scope + --> $DIR/ty-variance-issue-127971.rs:18:55 + | +LL | fn x<'b>(_: &'a impl Copy + 'a) -> Box<dyn 'b> { Box::u32(x) } + | ^^^ function or associated item not found in `Box<_, _>` + | +note: if you're trying to build a new `Box<_, _>` consider using one of the following associated functions: + Box::<T>::new + Box::<T>::new_uninit + Box::<T>::new_zeroed + Box::<T>::try_new + and 22 others + --> $SRC_DIR/alloc/src/boxed.rs:LL:COL + +error: aborting due to 11 previous errors + +Some errors have detailed explanations: E0121, E0224, E0261, E0599. +For more information about an error, try `rustc --explain E0121`. diff --git a/tests/ui/parallel-rustc/undefined-function-issue-120760.rs b/tests/ui/parallel-rustc/undefined-function-issue-120760.rs new file mode 100644 index 00000000000..2665c30945b --- /dev/null +++ b/tests/ui/parallel-rustc/undefined-function-issue-120760.rs @@ -0,0 +1,71 @@ +// Test for #120760, which causes an ice bug: no index for a field +// +//@ compile-flags: -Z threads=45 +//@ edition: 2021 +//@ compare-output-by-lines + +type BoxFuture<T> = std::pin::Pin<Box<dyn std::future::Future<Output = T>>>; + +fn main() { + let _ = f(); +} + +async fn f() { + run("dependency").await; //~ ERROR cannot find function `run` in this scope +} + +struct InMemoryStorage; + +pub struct User<'dep> { + pub name: &'a str, //~ ERROR use of undeclared lifetime name `'a` +} + +impl<'a> StorageRequest<InMemoryStorage> for SaveUser<'a> { + fn execute(&self) -> BoxFuture<Result<(), String>> { + todo!() + } +} + +trait Storage { + type Error; +} + +impl Storage for InMemoryStorage { + type Error = String; +} + +trait StorageRequestReturnType { + type Output; +} + +trait StorageRequest<S: Storage>: StorageRequestReturnType { + fn execute( + &self, + ) -> BoxFuture<Result<<SaveUser as StorageRequestReturnType>::Output, <S as Storage>::Error>>; +} + +pub struct SaveUser<'a> { + pub name: &'a str, +} + +impl<'a> StorageRequestReturnType for SaveUser<'a> { + type Output = (); +} + +impl<'dep> User<'dep> { + async fn save<S>(self) + where + S: Storage, + for<'a> SaveUser<'a>: StorageRequest<S>, + { + let _ = run("dependency").await; //~ ERROR cannot find function `run` in this scope + } +} + +async fn execute<S>(dep: &str) +where + S: Storage, + for<'a> SaveUser<'a>: StorageRequest<S>, +{ + User { dep }.save().await; //~ ERROR struct `User<'_>` has no field named `dep` +} diff --git a/tests/ui/parallel-rustc/undefined-function-issue-120760.stderr b/tests/ui/parallel-rustc/undefined-function-issue-120760.stderr new file mode 100644 index 00000000000..87af5372219 --- /dev/null +++ b/tests/ui/parallel-rustc/undefined-function-issue-120760.stderr @@ -0,0 +1,35 @@ +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/undefined-function-issue-120760.rs:20:16 + | +LL | pub name: &'a str, + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | pub struct User<'a, 'dep> { + | +++ + +error[E0425]: cannot find function `run` in this scope + --> $DIR/undefined-function-issue-120760.rs:14:5 + | +LL | run("dependency").await; + | ^^^ not found in this scope + +error[E0425]: cannot find function `run` in this scope + --> $DIR/undefined-function-issue-120760.rs:61:17 + | +LL | let _ = run("dependency").await; + | ^^^ not found in this scope + +error[E0560]: struct `User<'_>` has no field named `dep` + --> $DIR/undefined-function-issue-120760.rs:70:12 + | +LL | User { dep }.save().await; + | ^^^ `User<'_>` does not have this field + | + = note: available fields are: `name` + +error: aborting due to 4 previous errors + +Some errors have detailed explanations: E0261, E0425, E0560. +For more information about an error, try `rustc --explain E0261`. diff --git a/tests/ui/parallel-rustc/unexpected-type-issue-120601.rs b/tests/ui/parallel-rustc/unexpected-type-issue-120601.rs new file mode 100644 index 00000000000..2e215aa301a --- /dev/null +++ b/tests/ui/parallel-rustc/unexpected-type-issue-120601.rs @@ -0,0 +1,28 @@ +// Test for #120601, which causes an ice bug cause of unexpected type +// +//@ compile-flags: -Z threads=40 +//@ compare-output-by-lines + +struct T; +struct Tuple(i32); + +async fn foo() -> Result<(), ()> { + Unstable2(()) +} +//~^^^ ERROR `async fn` is not permitted in Rust 2015 +//~^^^ ERROR cannot find function, tuple struct or tuple variant `Unstable2` in this scope + +async fn tuple() -> Tuple { + Tuple(1i32) +} +//~^^^ ERROR `async fn` is not permitted in Rust 2015 + +async fn match_() { + match tuple() { + Tuple(_) => {} + } +} +//~^^^^^ ERROR `async fn` is not permitted in Rust 2015 +//~^^^^ ERROR mismatched types + +fn main() {} diff --git a/tests/ui/parallel-rustc/unexpected-type-issue-120601.stderr b/tests/ui/parallel-rustc/unexpected-type-issue-120601.stderr new file mode 100644 index 00000000000..ed563bb0c4e --- /dev/null +++ b/tests/ui/parallel-rustc/unexpected-type-issue-120601.stderr @@ -0,0 +1,52 @@ +error[E0670]: `async fn` is not permitted in Rust 2015 + --> $DIR/unexpected-type-issue-120601.rs:9:1 + | +LL | async fn foo() -> Result<(), ()> { + | ^^^^^ to use `async fn`, switch to Rust 2018 or later + | + = help: pass `--edition 2024` to `rustc` + = note: for more on editions, read https://doc.rust-lang.org/edition-guide + +error[E0670]: `async fn` is not permitted in Rust 2015 + --> $DIR/unexpected-type-issue-120601.rs:15:1 + | +LL | async fn tuple() -> Tuple { + | ^^^^^ to use `async fn`, switch to Rust 2018 or later + | + = help: pass `--edition 2024` to `rustc` + = note: for more on editions, read https://doc.rust-lang.org/edition-guide + +error[E0670]: `async fn` is not permitted in Rust 2015 + --> $DIR/unexpected-type-issue-120601.rs:20:1 + | +LL | async fn match_() { + | ^^^^^ to use `async fn`, switch to Rust 2018 or later + | + = help: pass `--edition 2024` to `rustc` + = note: for more on editions, read https://doc.rust-lang.org/edition-guide + +error[E0425]: cannot find function, tuple struct or tuple variant `Unstable2` in this scope + --> $DIR/unexpected-type-issue-120601.rs:10:5 + | +LL | Unstable2(()) + | ^^^^^^^^^ not found in this scope + +error[E0308]: mismatched types + --> $DIR/unexpected-type-issue-120601.rs:22:9 + | +LL | match tuple() { + | ------- this expression has type `impl Future<Output = Tuple>` +LL | Tuple(_) => {} + | ^^^^^^^^ expected future, found `Tuple` + | + = note: expected opaque type `impl Future<Output = Tuple>` + found struct `Tuple` +help: consider `await`ing on the `Future` + | +LL | match tuple().await { + | ++++++ + +error: aborting due to 5 previous errors + +Some errors have detailed explanations: E0308, E0425, E0670. +For more information about an error, try `rustc --explain E0308`. diff --git a/tests/ui/parser/attribute/attr-bad-meta-4.rs b/tests/ui/parser/attribute/attr-bad-meta-4.rs index 937390a6da5..606b41e89a5 100644 --- a/tests/ui/parser/attribute/attr-bad-meta-4.rs +++ b/tests/ui/parser/attribute/attr-bad-meta-4.rs @@ -1,7 +1,7 @@ macro_rules! mac { ($attr_item: meta) => { #[cfg($attr_item)] - //~^ ERROR expected unsuffixed literal, found `meta` metavariable + //~^ ERROR expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `meta` metavariable struct S; } } @@ -9,7 +9,7 @@ macro_rules! mac { mac!(an(arbitrary token stream)); #[cfg(feature = -1)] -//~^ ERROR expected unsuffixed literal, found `-` +//~^ ERROR expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `-` fn handler() {} fn main() {} diff --git a/tests/ui/parser/attribute/attr-bad-meta-4.stderr b/tests/ui/parser/attribute/attr-bad-meta-4.stderr index 9c6ab5adadf..1d939942fb9 100644 --- a/tests/ui/parser/attribute/attr-bad-meta-4.stderr +++ b/tests/ui/parser/attribute/attr-bad-meta-4.stderr @@ -1,10 +1,16 @@ -error: expected unsuffixed literal, found `-` +error: expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `-` --> $DIR/attr-bad-meta-4.rs:11:17 | LL | #[cfg(feature = -1)] | ^ + | +help: negative numbers are not literals, try removing the `-` sign + | +LL - #[cfg(feature = -1)] +LL + #[cfg(feature = 1)] + | -error: expected unsuffixed literal, found `meta` metavariable +error: expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `meta` metavariable --> $DIR/attr-bad-meta-4.rs:3:15 | LL | #[cfg($attr_item)] diff --git a/tests/ui/parser/attribute/attr-incomplete.rs b/tests/ui/parser/attribute/attr-incomplete.rs new file mode 100644 index 00000000000..49cb66e5f59 --- /dev/null +++ b/tests/ui/parser/attribute/attr-incomplete.rs @@ -0,0 +1,17 @@ +#[cfg(target-os = "windows")] +//~^ ERROR expected one of `(`, `,`, `::`, or `=`, found `-` +pub fn test1() { } + +#[cfg(target_os = %)] +//~^ ERROR expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `%` +pub fn test2() { } + +#[cfg(target_os?)] +//~^ ERROR expected one of `(`, `,`, `::`, or `=`, found `?` +pub fn test3() { } + +#[cfg[target_os]] +//~^ ERROR wrong meta list delimiters +pub fn test4() { } + +pub fn main() {} diff --git a/tests/ui/parser/attribute/attr-incomplete.stderr b/tests/ui/parser/attribute/attr-incomplete.stderr new file mode 100644 index 00000000000..5909820cef3 --- /dev/null +++ b/tests/ui/parser/attribute/attr-incomplete.stderr @@ -0,0 +1,32 @@ +error: expected one of `(`, `,`, `::`, or `=`, found `-` + --> $DIR/attr-incomplete.rs:1:13 + | +LL | #[cfg(target-os = "windows")] + | ^ expected one of `(`, `,`, `::`, or `=` + +error: expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `%` + --> $DIR/attr-incomplete.rs:5:19 + | +LL | #[cfg(target_os = %)] + | ^ + +error: expected one of `(`, `,`, `::`, or `=`, found `?` + --> $DIR/attr-incomplete.rs:9:16 + | +LL | #[cfg(target_os?)] + | ^ expected one of `(`, `,`, `::`, or `=` + +error: wrong meta list delimiters + --> $DIR/attr-incomplete.rs:13:6 + | +LL | #[cfg[target_os]] + | ^^^^^^^^^^^ + | +help: the delimiters should be `(` and `)` + | +LL - #[cfg[target_os]] +LL + #[cfg(target_os)] + | + +error: aborting due to 4 previous errors + diff --git a/tests/ui/parser/attribute/attr-unquoted-ident.rs b/tests/ui/parser/attribute/attr-unquoted-ident.rs index 396265f715e..8a0c65b783a 100644 --- a/tests/ui/parser/attribute/attr-unquoted-ident.rs +++ b/tests/ui/parser/attribute/attr-unquoted-ident.rs @@ -4,13 +4,13 @@ fn main() { #[cfg(key=foo)] - //~^ ERROR expected unsuffixed literal, found `foo` + //~^ ERROR expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `foo` //~| HELP surround the identifier with quotation marks to make it into a string literal println!(); #[cfg(key="bar")] println!(); #[cfg(key=foo bar baz)] - //~^ ERROR expected unsuffixed literal, found `foo` + //~^ ERROR expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `foo` //~| HELP surround the identifier with quotation marks to make it into a string literal println!(); } diff --git a/tests/ui/parser/attribute/attr-unquoted-ident.stderr b/tests/ui/parser/attribute/attr-unquoted-ident.stderr index 2d7997f1aea..8a2785280ad 100644 --- a/tests/ui/parser/attribute/attr-unquoted-ident.stderr +++ b/tests/ui/parser/attribute/attr-unquoted-ident.stderr @@ -1,4 +1,4 @@ -error: expected unsuffixed literal, found `foo` +error: expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `foo` --> $DIR/attr-unquoted-ident.rs:6:15 | LL | #[cfg(key=foo)] @@ -9,7 +9,7 @@ help: surround the identifier with quotation marks to make it into a string lite LL | #[cfg(key="foo")] | + + -error: expected unsuffixed literal, found `foo` +error: expected a literal (`1u8`, `1.0f32`, `"string"`, etc.) here, found `foo` --> $DIR/attr-unquoted-ident.rs:12:15 | LL | #[cfg(key=foo bar baz)] diff --git a/tests/ui/parser/bad-lit-suffixes.stderr b/tests/ui/parser/bad-lit-suffixes.stderr index 9a51cf70960..e1a8a6834f4 100644 --- a/tests/ui/parser/bad-lit-suffixes.stderr +++ b/tests/ui/parser/bad-lit-suffixes.stderr @@ -11,31 +11,11 @@ LL | "C"suffix | ^^^^^^^^^ invalid suffix `suffix` error: suffixes on string literals are invalid - --> $DIR/bad-lit-suffixes.rs:30:17 - | -LL | #[rustc_dummy = "string"suffix] - | ^^^^^^^^^^^^^^ invalid suffix `suffix` - -error: suffixes on string literals are invalid - --> $DIR/bad-lit-suffixes.rs:34:14 - | -LL | #[must_use = "string"suffix] - | ^^^^^^^^^^^^^^ invalid suffix `suffix` - -error: suffixes on string literals are invalid --> $DIR/bad-lit-suffixes.rs:39:15 | LL | #[link(name = "string"suffix)] | ^^^^^^^^^^^^^^ invalid suffix `suffix` -error: invalid suffix `suffix` for number literal - --> $DIR/bad-lit-suffixes.rs:43:41 - | -LL | #[rustc_layout_scalar_valid_range_start(0suffix)] - | ^^^^^^^ invalid suffix `suffix` - | - = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) - warning: `extern` declarations without an explicit ABI are deprecated --> $DIR/bad-lit-suffixes.rs:3:1 | @@ -150,6 +130,18 @@ LL | 1.0e10suffix; | = help: valid suffixes are `f32` and `f64` +error: suffixes on string literals are invalid + --> $DIR/bad-lit-suffixes.rs:30:17 + | +LL | #[rustc_dummy = "string"suffix] + | ^^^^^^^^^^^^^^ invalid suffix `suffix` + +error: suffixes on string literals are invalid + --> $DIR/bad-lit-suffixes.rs:34:14 + | +LL | #[must_use = "string"suffix] + | ^^^^^^^^^^^^^^ invalid suffix `suffix` + error[E0539]: malformed `must_use` attribute input --> $DIR/bad-lit-suffixes.rs:34:1 | @@ -168,16 +160,23 @@ LL - #[must_use = "string"suffix] LL + #[must_use] | -error[E0805]: malformed `rustc_layout_scalar_valid_range_start` attribute input +error: invalid suffix `suffix` for number literal + --> $DIR/bad-lit-suffixes.rs:43:41 + | +LL | #[rustc_layout_scalar_valid_range_start(0suffix)] + | ^^^^^^^ invalid suffix `suffix` + | + = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) + +error[E0539]: malformed `rustc_layout_scalar_valid_range_start` attribute input --> $DIR/bad-lit-suffixes.rs:43:1 | LL | #[rustc_layout_scalar_valid_range_start(0suffix)] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---------^ - | | | - | | expected a single argument here + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------^^ + | | | + | | expected an integer literal here | help: must be of the form: `#[rustc_layout_scalar_valid_range_start(start)]` error: aborting due to 22 previous errors; 2 warnings emitted -Some errors have detailed explanations: E0539, E0805. -For more information about an error, try `rustc --explain E0539`. +For more information about this error, try `rustc --explain E0539`. diff --git a/tests/ui/parser/recover/param-default.rs b/tests/ui/parser/recover/param-default.rs new file mode 100644 index 00000000000..5311d4dfae6 --- /dev/null +++ b/tests/ui/parser/recover/param-default.rs @@ -0,0 +1,5 @@ +fn foo(x: i32 = 1) {} //~ ERROR parameter defaults are not supported + +type Foo = fn(i32 = 0); //~ ERROR parameter defaults are not supported + +fn main() {} diff --git a/tests/ui/parser/recover/param-default.stderr b/tests/ui/parser/recover/param-default.stderr new file mode 100644 index 00000000000..93dea427daf --- /dev/null +++ b/tests/ui/parser/recover/param-default.stderr @@ -0,0 +1,14 @@ +error: parameter defaults are not supported + --> $DIR/param-default.rs:1:15 + | +LL | fn foo(x: i32 = 1) {} + | ^^^ + +error: parameter defaults are not supported + --> $DIR/param-default.rs:3:19 + | +LL | type Foo = fn(i32 = 0); + | ^^^ + +error: aborting due to 2 previous errors + diff --git a/tests/ui/parser/recover/recover-pat-ranges.stderr b/tests/ui/parser/recover/recover-pat-ranges.stderr index 246c704d53f..afa7f254054 100644 --- a/tests/ui/parser/recover/recover-pat-ranges.stderr +++ b/tests/ui/parser/recover/recover-pat-ranges.stderr @@ -192,7 +192,7 @@ LL | (1 + 4)...1 * 2 => (), | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default + = note: `#[warn(ellipsis_inclusive_range_patterns)]` (part of `#[warn(rust_2021_compatibility)]`) on by default error: aborting due to 13 previous errors; 1 warning emitted diff --git a/tests/ui/parser/removed-syntax/removed-syntax-fixed-vec.stderr b/tests/ui/parser/removed-syntax/removed-syntax-fixed-vec.stderr index 8d7938a1a46..f584197c98e 100644 --- a/tests/ui/parser/removed-syntax/removed-syntax-fixed-vec.stderr +++ b/tests/ui/parser/removed-syntax/removed-syntax-fixed-vec.stderr @@ -17,7 +17,7 @@ warning: type `v` should have an upper camel case name LL | type v = [isize * 3]; | ^ help: convert the identifier to upper camel case (notice the capitalization): `V` | - = note: `#[warn(non_camel_case_types)]` on by default + = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default error: aborting due to 1 previous error; 1 warning emitted diff --git a/tests/ui/parser/require-parens-for-chained-comparison.rs b/tests/ui/parser/require-parens-for-chained-comparison.rs index 21a908923f2..6152fff6c03 100644 --- a/tests/ui/parser/require-parens-for-chained-comparison.rs +++ b/tests/ui/parser/require-parens-for-chained-comparison.rs @@ -24,14 +24,14 @@ fn main() { //~| HELP use `::<...>` instead of `<...>` to specify lifetime, type, or const arguments //~| ERROR expected //~| HELP add `'` to close the char literal - //~| ERROR invalid label name + //~| ERROR labels cannot use keyword names f<'_>(); //~^ ERROR comparison operators cannot be chained //~| HELP use `::<...>` instead of `<...>` to specify lifetime, type, or const arguments //~| ERROR expected //~| HELP add `'` to close the char literal - //~| ERROR invalid label name + //~| ERROR labels cannot use keyword names let _ = f<u8>; //~^ ERROR comparison operators cannot be chained diff --git a/tests/ui/parser/require-parens-for-chained-comparison.stderr b/tests/ui/parser/require-parens-for-chained-comparison.stderr index 857c4a55788..9edfae36250 100644 --- a/tests/ui/parser/require-parens-for-chained-comparison.stderr +++ b/tests/ui/parser/require-parens-for-chained-comparison.stderr @@ -53,7 +53,7 @@ help: use `::<...>` instead of `<...>` to specify lifetime, type, or const argum LL | let _ = f::<u8, i8>(); | ++ -error: invalid label name `'_` +error: labels cannot use keyword names --> $DIR/require-parens-for-chained-comparison.rs:22:15 | LL | let _ = f<'_, i8>(); @@ -81,7 +81,7 @@ help: use `::<...>` instead of `<...>` to specify lifetime, type, or const argum LL | let _ = f::<'_, i8>(); | ++ -error: invalid label name `'_` +error: labels cannot use keyword names --> $DIR/require-parens-for-chained-comparison.rs:29:7 | LL | f<'_>(); diff --git a/tests/ui/parser/trait-object-lifetime-parens.e2015.stderr b/tests/ui/parser/trait-object-lifetime-parens.e2015.stderr index cf0b3d77f5b..4f4f89de5d1 100644 --- a/tests/ui/parser/trait-object-lifetime-parens.e2015.stderr +++ b/tests/ui/parser/trait-object-lifetime-parens.e2015.stderr @@ -1,4 +1,4 @@ -error: parenthesized lifetime bounds are not supported +error: lifetime bounds may not be parenthesized --> $DIR/trait-object-lifetime-parens.rs:9:21 | LL | fn f<'a, T: Trait + ('a)>() {} @@ -10,7 +10,7 @@ LL - fn f<'a, T: Trait + ('a)>() {} LL + fn f<'a, T: Trait + 'a>() {} | -error: parenthesized lifetime bounds are not supported +error: lifetime bounds may not be parenthesized --> $DIR/trait-object-lifetime-parens.rs:12:24 | LL | let _: Box<Trait + ('a)>; diff --git a/tests/ui/parser/trait-object-lifetime-parens.e2021.stderr b/tests/ui/parser/trait-object-lifetime-parens.e2021.stderr index b65c079788a..a4e2501cfdf 100644 --- a/tests/ui/parser/trait-object-lifetime-parens.e2021.stderr +++ b/tests/ui/parser/trait-object-lifetime-parens.e2021.stderr @@ -1,4 +1,4 @@ -error: parenthesized lifetime bounds are not supported +error: lifetime bounds may not be parenthesized --> $DIR/trait-object-lifetime-parens.rs:9:21 | LL | fn f<'a, T: Trait + ('a)>() {} @@ -10,7 +10,7 @@ LL - fn f<'a, T: Trait + ('a)>() {} LL + fn f<'a, T: Trait + 'a>() {} | -error: parenthesized lifetime bounds are not supported +error: lifetime bounds may not be parenthesized --> $DIR/trait-object-lifetime-parens.rs:12:24 | LL | let _: Box<Trait + ('a)>; diff --git a/tests/ui/parser/trait-object-lifetime-parens.rs b/tests/ui/parser/trait-object-lifetime-parens.rs index 0ff4660bb0d..47a6884b316 100644 --- a/tests/ui/parser/trait-object-lifetime-parens.rs +++ b/tests/ui/parser/trait-object-lifetime-parens.rs @@ -6,10 +6,10 @@ trait Trait {} -fn f<'a, T: Trait + ('a)>() {} //~ ERROR parenthesized lifetime bounds are not supported +fn f<'a, T: Trait + ('a)>() {} //~ ERROR lifetime bounds may not be parenthesized fn check<'a>() { - let _: Box<Trait + ('a)>; //~ ERROR parenthesized lifetime bounds are not supported + let _: Box<Trait + ('a)>; //~ ERROR lifetime bounds may not be parenthesized //[e2021]~^ ERROR expected a type, found a trait // FIXME: It'd be great if we could suggest removing the parentheses here too. //[e2015]~v ERROR lifetimes must be followed by `+` to form a trait object type diff --git a/tests/ui/parser/trait-object-trait-parens.stderr b/tests/ui/parser/trait-object-trait-parens.stderr index b2067547568..f498d7d36bb 100644 --- a/tests/ui/parser/trait-object-trait-parens.stderr +++ b/tests/ui/parser/trait-object-trait-parens.stderr @@ -24,7 +24,7 @@ LL | let _: Box<(Obj) + (?Sized) + (for<'a> Trait<'a>)>; | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | let _: Box<dyn (Obj) + (?Sized) + (for<'a> Trait<'a>)>; diff --git a/tests/ui/pattern/deref-patterns/recursion-limit.stderr b/tests/ui/pattern/deref-patterns/recursion-limit.stderr index 9a83d1eb5a4..f6aa92b23ad 100644 --- a/tests/ui/pattern/deref-patterns/recursion-limit.stderr +++ b/tests/ui/pattern/deref-patterns/recursion-limit.stderr @@ -10,7 +10,13 @@ error[E0277]: the trait bound `Cyclic: DerefPure` is not satisfied --> $DIR/recursion-limit.rs:18:9 | LL | () => {} - | ^^ the trait `DerefPure` is not implemented for `Cyclic` + | ^^ unsatisfied trait bound + | +help: the trait `DerefPure` is not implemented for `Cyclic` + --> $DIR/recursion-limit.rs:8:1 + | +LL | struct Cyclic; + | ^^^^^^^^^^^^^ error: aborting due to 2 previous errors diff --git a/tests/ui/pattern/deref-patterns/unsatisfied-bounds.stderr b/tests/ui/pattern/deref-patterns/unsatisfied-bounds.stderr index 983ce27865c..0b1e8ef4978 100644 --- a/tests/ui/pattern/deref-patterns/unsatisfied-bounds.stderr +++ b/tests/ui/pattern/deref-patterns/unsatisfied-bounds.stderr @@ -2,7 +2,13 @@ error[E0277]: the trait bound `MyPointer: DerefPure` is not satisfied --> $DIR/unsatisfied-bounds.rs:17:9 | LL | () => {} - | ^^ the trait `DerefPure` is not implemented for `MyPointer` + | ^^ unsatisfied trait bound + | +help: the trait `DerefPure` is not implemented for `MyPointer` + --> $DIR/unsatisfied-bounds.rs:4:1 + | +LL | struct MyPointer; + | ^^^^^^^^^^^^^^^^ error: aborting due to 1 previous error diff --git a/tests/ui/issues/issue-8391.rs b/tests/ui/pattern/match-with-at-binding-8391.rs index 20698eed18b..bc4e7be7989 100644 --- a/tests/ui/issues/issue-8391.rs +++ b/tests/ui/pattern/match-with-at-binding-8391.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/8391 //@ run-pass fn main() { diff --git a/tests/ui/issues/issue-8860.rs b/tests/ui/pattern/ref-in-function-parameter-patterns-8860.rs index 3af61576fe1..1a67caf021c 100644 --- a/tests/ui/issues/issue-8860.rs +++ b/tests/ui/pattern/ref-in-function-parameter-patterns-8860.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/8860 //@ run-pass // FIXME(static_mut_refs): this could use an atomic #![allow(static_mut_refs)] diff --git a/tests/ui/pattern/skipped-ref-pats-issue-125058.stderr b/tests/ui/pattern/skipped-ref-pats-issue-125058.stderr index f7fd4a4cc29..9580bab2b4f 100644 --- a/tests/ui/pattern/skipped-ref-pats-issue-125058.stderr +++ b/tests/ui/pattern/skipped-ref-pats-issue-125058.stderr @@ -4,7 +4,7 @@ warning: struct `Foo` is never constructed LL | struct Foo; | ^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: unused closure that must be used --> $DIR/skipped-ref-pats-issue-125058.rs:11:5 @@ -18,7 +18,7 @@ LL | | }; | |_____^ | = note: closures are lazy and do nothing unless called - = note: `#[warn(unused_must_use)]` on by default + = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default warning: 2 warnings emitted diff --git a/tests/ui/issues/issue-76077-inaccesible-private-fields/issue-76077-1.fixed b/tests/ui/privacy/inaccessible-fields-pattern-matching-76077.fixed index 6fde4e390fa..7d648543a20 100644 --- a/tests/ui/issues/issue-76077-inaccesible-private-fields/issue-76077-1.fixed +++ b/tests/ui/privacy/inaccessible-fields-pattern-matching-76077.fixed @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/76077 //@ run-rustfix #![allow(dead_code, unused_variables)] diff --git a/tests/ui/issues/issue-76077-inaccesible-private-fields/issue-76077-1.rs b/tests/ui/privacy/inaccessible-fields-pattern-matching-76077.rs index 30a8535faf5..f3b51187ae3 100644 --- a/tests/ui/issues/issue-76077-inaccesible-private-fields/issue-76077-1.rs +++ b/tests/ui/privacy/inaccessible-fields-pattern-matching-76077.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/76077 //@ run-rustfix #![allow(dead_code, unused_variables)] diff --git a/tests/ui/issues/issue-76077-inaccesible-private-fields/issue-76077-1.stderr b/tests/ui/privacy/inaccessible-fields-pattern-matching-76077.stderr index f54990d5d86..070fa1a53a5 100644 --- a/tests/ui/issues/issue-76077-inaccesible-private-fields/issue-76077-1.stderr +++ b/tests/ui/privacy/inaccessible-fields-pattern-matching-76077.stderr @@ -1,5 +1,5 @@ error: pattern requires `..` due to inaccessible fields - --> $DIR/issue-76077-1.rs:13:9 + --> $DIR/inaccessible-fields-pattern-matching-76077.rs:14:9 | LL | let foo::Foo {} = foo::Foo::default(); | ^^^^^^^^^^^ @@ -10,7 +10,7 @@ LL | let foo::Foo { .. } = foo::Foo::default(); | ++ error: pattern requires `..` due to inaccessible fields - --> $DIR/issue-76077-1.rs:16:9 + --> $DIR/inaccessible-fields-pattern-matching-76077.rs:17:9 | LL | let foo::Bar { visible } = foo::Bar::default(); | ^^^^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/privacy/macro-private-reexport.stderr b/tests/ui/privacy/macro-private-reexport.stderr index b8768f3612e..aa02715c202 100644 --- a/tests/ui/privacy/macro-private-reexport.stderr +++ b/tests/ui/privacy/macro-private-reexport.stderr @@ -11,6 +11,10 @@ LL | / macro_rules! bar { LL | | () => {}; LL | | } | |_____^ +help: in case you want to use the macro within this crate only, reduce the visibility to `pub(crate)` + | +LL | pub(crate) use bar as _; + | +++++++ error[E0364]: `baz` is private, and cannot be re-exported --> $DIR/macro-private-reexport.rs:14:13 diff --git a/tests/ui/issues/issue-76077-inaccesible-private-fields/issue-76077.rs b/tests/ui/privacy/private-field-struct-construction-76077.rs index 2d29093b01b..7fc3473e8de 100644 --- a/tests/ui/issues/issue-76077-inaccesible-private-fields/issue-76077.rs +++ b/tests/ui/privacy/private-field-struct-construction-76077.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/76077 pub mod foo { pub struct Foo { you_cant_use_this_field: bool, diff --git a/tests/ui/issues/issue-76077-inaccesible-private-fields/issue-76077.stderr b/tests/ui/privacy/private-field-struct-construction-76077.stderr index 3fef5ffce30..5131db72fe3 100644 --- a/tests/ui/issues/issue-76077-inaccesible-private-fields/issue-76077.stderr +++ b/tests/ui/privacy/private-field-struct-construction-76077.stderr @@ -1,5 +1,5 @@ error: cannot construct `Foo` with struct literal syntax due to private fields - --> $DIR/issue-76077.rs:8:5 + --> $DIR/private-field-struct-construction-76077.rs:9:5 | LL | foo::Foo {}; | ^^^^^^^^ diff --git a/tests/ui/privacy/sealed-traits/false-sealed-traits-note.stderr b/tests/ui/privacy/sealed-traits/false-sealed-traits-note.stderr index df8016565da..c3cfaed3e43 100644 --- a/tests/ui/privacy/sealed-traits/false-sealed-traits-note.stderr +++ b/tests/ui/privacy/sealed-traits/false-sealed-traits-note.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `Struct: TraitA` is not satisfied --> $DIR/false-sealed-traits-note.rs:12:24 | LL | impl inner::TraitB for Struct {} - | ^^^^^^ the trait `TraitA` is not implemented for `Struct` + | ^^^^^^ unsatisfied trait bound | +help: the trait `TraitA` is not implemented for `Struct` + --> $DIR/false-sealed-traits-note.rs:10:1 + | +LL | struct Struct; + | ^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/false-sealed-traits-note.rs:5:5 | @@ -19,8 +24,13 @@ error[E0277]: the trait bound `C: A` is not satisfied --> $DIR/false-sealed-traits-note.rs:20:16 | LL | impl B for C {} - | ^ the trait `A` is not implemented for `C` + | ^ unsatisfied trait bound + | +help: the trait `A` is not implemented for `C` + --> $DIR/false-sealed-traits-note.rs:19:5 | +LL | pub struct C; + | ^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/false-sealed-traits-note.rs:16:5 | diff --git a/tests/ui/privacy/sealed-traits/sealed-trait-local.stderr b/tests/ui/privacy/sealed-traits/sealed-trait-local.stderr index a7f77a1c0c0..4d00d067d75 100644 --- a/tests/ui/privacy/sealed-traits/sealed-trait-local.stderr +++ b/tests/ui/privacy/sealed-traits/sealed-trait-local.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `S: b::Hidden` is not satisfied --> $DIR/sealed-trait-local.rs:52:20 | LL | impl a::Sealed for S {} - | ^ the trait `b::Hidden` is not implemented for `S` + | ^ unsatisfied trait bound | +help: the trait `b::Hidden` is not implemented for `S` + --> $DIR/sealed-trait-local.rs:51:1 + | +LL | struct S; + | ^^^^^^^^ note: required by a bound in `a::Sealed` --> $DIR/sealed-trait-local.rs:3:23 | @@ -17,8 +22,13 @@ error[E0277]: the trait bound `S: d::Hidden` is not satisfied --> $DIR/sealed-trait-local.rs:53:20 | LL | impl c::Sealed for S {} - | ^ the trait `d::Hidden` is not implemented for `S` + | ^ unsatisfied trait bound + | +help: the trait `d::Hidden` is not implemented for `S` + --> $DIR/sealed-trait-local.rs:51:1 | +LL | struct S; + | ^^^^^^^^ note: required by a bound in `c::Sealed` --> $DIR/sealed-trait-local.rs:17:23 | @@ -33,8 +43,13 @@ error[E0277]: the trait bound `S: f::Hidden` is not satisfied --> $DIR/sealed-trait-local.rs:54:20 | LL | impl e::Sealed for S {} - | ^ the trait `f::Hidden` is not implemented for `S` + | ^ unsatisfied trait bound + | +help: the trait `f::Hidden` is not implemented for `S` + --> $DIR/sealed-trait-local.rs:51:1 | +LL | struct S; + | ^^^^^^^^ note: required by a bound in `e::Sealed` --> $DIR/sealed-trait-local.rs:35:23 | diff --git a/tests/ui/proc-macro/derive-helper-shadowing.stderr b/tests/ui/proc-macro/derive-helper-shadowing.stderr index 65989375ab5..2e4ddd19b7e 100644 --- a/tests/ui/proc-macro/derive-helper-shadowing.stderr +++ b/tests/ui/proc-macro/derive-helper-shadowing.stderr @@ -69,7 +69,7 @@ LL | #[derive(Empty)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202> - = note: `#[deny(legacy_derive_helpers)]` on by default + = note: `#[deny(legacy_derive_helpers)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 5 previous errors @@ -86,5 +86,5 @@ LL | #[derive(Empty)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202> - = note: `#[deny(legacy_derive_helpers)]` on by default + = note: `#[deny(legacy_derive_helpers)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/proc-macro/generate-mod.stderr b/tests/ui/proc-macro/generate-mod.stderr index cbe6b14ca9a..142ff1abeed 100644 --- a/tests/ui/proc-macro/generate-mod.stderr +++ b/tests/ui/proc-macro/generate-mod.stderr @@ -46,7 +46,7 @@ LL | #[derive(generate_mod::CheckDerive)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #83583 <https://github.com/rust-lang/rust/issues/83583> - = note: `#[deny(proc_macro_derive_resolution_fallback)]` on by default + = note: `#[deny(proc_macro_derive_resolution_fallback)]` (part of `#[deny(future_incompatible)]`) on by default = note: this error originates in the derive macro `generate_mod::CheckDerive` (in Nightly builds, run with -Z macro-backtrace for more info) error: cannot find type `OuterDerive` in this scope @@ -91,7 +91,7 @@ LL | #[derive(generate_mod::CheckDerive)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #83583 <https://github.com/rust-lang/rust/issues/83583> - = note: `#[deny(proc_macro_derive_resolution_fallback)]` on by default + = note: `#[deny(proc_macro_derive_resolution_fallback)]` (part of `#[deny(future_incompatible)]`) on by default = note: this error originates in the derive macro `generate_mod::CheckDerive` (in Nightly builds, run with -Z macro-backtrace for more info) Future breakage diagnostic: @@ -103,7 +103,7 @@ LL | #[derive(generate_mod::CheckDerive)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #83583 <https://github.com/rust-lang/rust/issues/83583> - = note: `#[deny(proc_macro_derive_resolution_fallback)]` on by default + = note: `#[deny(proc_macro_derive_resolution_fallback)]` (part of `#[deny(future_incompatible)]`) on by default = note: this error originates in the derive macro `generate_mod::CheckDerive` (in Nightly builds, run with -Z macro-backtrace for more info) Future breakage diagnostic: @@ -115,7 +115,7 @@ LL | #[derive(generate_mod::CheckDerive)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #83583 <https://github.com/rust-lang/rust/issues/83583> - = note: `#[deny(proc_macro_derive_resolution_fallback)]` on by default + = note: `#[deny(proc_macro_derive_resolution_fallback)]` (part of `#[deny(future_incompatible)]`) on by default = note: this error originates in the derive macro `generate_mod::CheckDerive` (in Nightly builds, run with -Z macro-backtrace for more info) Future breakage diagnostic: @@ -127,7 +127,7 @@ LL | #[derive(generate_mod::CheckDerive)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #83583 <https://github.com/rust-lang/rust/issues/83583> - = note: `#[deny(proc_macro_derive_resolution_fallback)]` on by default + = note: `#[deny(proc_macro_derive_resolution_fallback)]` (part of `#[deny(future_incompatible)]`) on by default = note: this error originates in the derive macro `generate_mod::CheckDerive` (in Nightly builds, run with -Z macro-backtrace for more info) Future breakage diagnostic: diff --git a/tests/ui/proc-macro/helper-attr-blocked-by-import-ambig.stderr b/tests/ui/proc-macro/helper-attr-blocked-by-import-ambig.stderr index df7951464fb..88e829521f9 100644 --- a/tests/ui/proc-macro/helper-attr-blocked-by-import-ambig.stderr +++ b/tests/ui/proc-macro/helper-attr-blocked-by-import-ambig.stderr @@ -28,7 +28,7 @@ LL | #[derive(Empty)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202> - = note: `#[deny(legacy_derive_helpers)]` on by default + = note: `#[deny(legacy_derive_helpers)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 2 previous errors @@ -45,5 +45,5 @@ LL | #[derive(Empty)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202> - = note: `#[deny(legacy_derive_helpers)]` on by default + = note: `#[deny(legacy_derive_helpers)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/proc-macro/issue-104884-trait-impl-sugg-err.stderr b/tests/ui/proc-macro/issue-104884-trait-impl-sugg-err.stderr index c12c8d03361..f3ed9e5761d 100644 --- a/tests/ui/proc-macro/issue-104884-trait-impl-sugg-err.stderr +++ b/tests/ui/proc-macro/issue-104884-trait-impl-sugg-err.stderr @@ -4,7 +4,11 @@ error[E0277]: can't compare `PriorityQueue<T>` with `PriorityQueue<T>` LL | #[derive(PartialOrd, AddImpl)] | ^^^^^^^^^^ no implementation for `PriorityQueue<T> == PriorityQueue<T>` | - = help: the trait `PartialEq` is not implemented for `PriorityQueue<T>` +help: the trait `PartialEq` is not implemented for `PriorityQueue<T>` + --> $DIR/issue-104884-trait-impl-sugg-err.rs:20:1 + | +LL | struct PriorityQueue<T>(BinaryHeap<PriorityQueueEntry<T>>); + | ^^^^^^^^^^^^^^^^^^^^^^^ note: required by a bound in `PartialOrd` --> $SRC_DIR/core/src/cmp.rs:LL:COL @@ -12,8 +16,13 @@ error[E0277]: the trait bound `PriorityQueue<T>: Eq` is not satisfied --> $DIR/issue-104884-trait-impl-sugg-err.rs:13:22 | LL | #[derive(PartialOrd, AddImpl)] - | ^^^^^^^ the trait `Eq` is not implemented for `PriorityQueue<T>` + | ^^^^^^^ unsatisfied trait bound | +help: the trait `Eq` is not implemented for `PriorityQueue<T>` + --> $DIR/issue-104884-trait-impl-sugg-err.rs:20:1 + | +LL | struct PriorityQueue<T>(BinaryHeap<PriorityQueueEntry<T>>); + | ^^^^^^^^^^^^^^^^^^^^^^^ note: required by a bound in `Ord` --> $SRC_DIR/core/src/cmp.rs:LL:COL = note: this error originates in the derive macro `AddImpl` (in Nightly builds, run with -Z macro-backtrace for more info) diff --git a/tests/ui/proc-macro/proc-macro-attributes.stderr b/tests/ui/proc-macro/proc-macro-attributes.stderr index 892728901fb..6a1387a3b1c 100644 --- a/tests/ui/proc-macro/proc-macro-attributes.stderr +++ b/tests/ui/proc-macro/proc-macro-attributes.stderr @@ -93,7 +93,7 @@ LL | #[derive(B)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202> - = note: `#[deny(legacy_derive_helpers)]` on by default + = note: `#[deny(legacy_derive_helpers)]` (part of `#[deny(future_incompatible)]`) on by default error: derive helper attribute is used before it is introduced --> $DIR/proc-macro-attributes.rs:10:3 @@ -146,7 +146,7 @@ LL | #[derive(B)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202> - = note: `#[deny(legacy_derive_helpers)]` on by default + = note: `#[deny(legacy_derive_helpers)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: derive helper attribute is used before it is introduced @@ -160,7 +160,7 @@ LL | #[derive(B)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202> - = note: `#[deny(legacy_derive_helpers)]` on by default + = note: `#[deny(legacy_derive_helpers)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: derive helper attribute is used before it is introduced @@ -174,7 +174,7 @@ LL | #[derive(B)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202> - = note: `#[deny(legacy_derive_helpers)]` on by default + = note: `#[deny(legacy_derive_helpers)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error: derive helper attribute is used before it is introduced @@ -188,5 +188,5 @@ LL | #[derive(B)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202> - = note: `#[deny(legacy_derive_helpers)]` on by default + = note: `#[deny(legacy_derive_helpers)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/pub/pub-reexport-priv-extern-crate.stderr b/tests/ui/pub/pub-reexport-priv-extern-crate.stderr index 9bb64a3325b..dbb080e1b09 100644 --- a/tests/ui/pub/pub-reexport-priv-extern-crate.stderr +++ b/tests/ui/pub/pub-reexport-priv-extern-crate.stderr @@ -30,7 +30,7 @@ LL | pub use core as reexported_core; | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #127909 <https://github.com/rust-lang/rust/issues/127909> - = note: `#[deny(pub_use_of_private_extern_crate)]` on by default + = note: `#[deny(pub_use_of_private_extern_crate)]` (part of `#[deny(future_incompatible)]`) on by default help: consider making the `extern crate` item publicly accessible | LL | pub extern crate core; @@ -49,7 +49,7 @@ LL | pub use core as reexported_core; | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #127909 <https://github.com/rust-lang/rust/issues/127909> - = note: `#[deny(pub_use_of_private_extern_crate)]` on by default + = note: `#[deny(pub_use_of_private_extern_crate)]` (part of `#[deny(future_incompatible)]`) on by default help: consider making the `extern crate` item publicly accessible | LL | pub extern crate core; diff --git a/tests/ui/issues/issue-8727.rs b/tests/ui/recursion/infinite-function-recursion-error-8727.rs index c1b60e8e085..a4037f76109 100644 --- a/tests/ui/issues/issue-8727.rs +++ b/tests/ui/recursion/infinite-function-recursion-error-8727.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/8727 // Verify the compiler fails with an error on infinite function // recursions. @@ -9,7 +10,6 @@ fn generic<T>() { //~ WARN function cannot return without recursing } //~^^ ERROR reached the recursion limit while instantiating `generic::<Option< - fn main () { // Use generic<T> at least once to trigger instantiation. generic::<i32>(); diff --git a/tests/ui/issues/issue-8727.stderr b/tests/ui/recursion/infinite-function-recursion-error-8727.stderr index 9fb09a7d4f4..13d57ecb3b2 100644 --- a/tests/ui/issues/issue-8727.stderr +++ b/tests/ui/recursion/infinite-function-recursion-error-8727.stderr @@ -1,5 +1,5 @@ warning: function cannot return without recursing - --> $DIR/issue-8727.rs:7:1 + --> $DIR/infinite-function-recursion-error-8727.rs:8:1 | LL | fn generic<T>() { | ^^^^^^^^^^^^^^^ cannot return without recursing @@ -10,17 +10,17 @@ LL | generic::<Option<T>>(); = note: `#[warn(unconditional_recursion)]` on by default error: reached the recursion limit while instantiating `generic::<Option<Option<Option<Option<...>>>>>` - --> $DIR/issue-8727.rs:8:5 + --> $DIR/infinite-function-recursion-error-8727.rs:9:5 | LL | generic::<Option<T>>(); | ^^^^^^^^^^^^^^^^^^^^^^ | note: `generic` defined here - --> $DIR/issue-8727.rs:7:1 + --> $DIR/infinite-function-recursion-error-8727.rs:8:1 | LL | fn generic<T>() { | ^^^^^^^^^^^^^^^ - = note: the full name for the type has been written to '$TEST_BUILD_DIR/issue-8727.long-type-$LONG_TYPE_HASH.txt' + = note: the full name for the type has been written to '$TEST_BUILD_DIR/infinite-function-recursion-error-8727.long-type-$LONG_TYPE_HASH.txt' = note: consider using `--verbose` to print the full type name to the console error: aborting due to 1 previous error; 1 warning emitted diff --git a/tests/ui/repr/conflicting-repr-hints.stderr b/tests/ui/repr/conflicting-repr-hints.stderr index fbfa69e7fb1..4da3d454e03 100644 --- a/tests/ui/repr/conflicting-repr-hints.stderr +++ b/tests/ui/repr/conflicting-repr-hints.stderr @@ -6,7 +6,7 @@ LL | #[repr(C, u64)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/68585> - = note: `#[deny(conflicting_repr_hints)]` on by default + = note: `#[deny(conflicting_repr_hints)]` (part of `#[deny(future_incompatible)]`) on by default error[E0566]: conflicting representation hints --> $DIR/conflicting-repr-hints.rs:19:8 @@ -90,7 +90,7 @@ LL | #[repr(C, u64)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/68585> - = note: `#[deny(conflicting_repr_hints)]` on by default + = note: `#[deny(conflicting_repr_hints)]` (part of `#[deny(future_incompatible)]`) on by default Future breakage diagnostic: error[E0566]: conflicting representation hints @@ -101,5 +101,5 @@ LL | #[repr(u32, u64)] | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/68585> - = note: `#[deny(conflicting_repr_hints)]` on by default + = note: `#[deny(conflicting_repr_hints)]` (part of `#[deny(future_incompatible)]`) on by default diff --git a/tests/ui/issues/issue-7663.rs b/tests/ui/resolve/module-import-resolution-7663.rs index d2b2c727cab..872806594fc 100644 --- a/tests/ui/issues/issue-7663.rs +++ b/tests/ui/resolve/module-import-resolution-7663.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/7663 //@ run-pass #![allow(unused_imports, dead_code)] diff --git a/tests/ui/resolve/path-attr-in-const-block.rs b/tests/ui/resolve/path-attr-in-const-block.rs index 69be65bda3f..0ca356b1ddf 100644 --- a/tests/ui/resolve/path-attr-in-const-block.rs +++ b/tests/ui/resolve/path-attr-in-const-block.rs @@ -5,6 +5,6 @@ fn main() { const { #![path = foo!()] //~^ ERROR: cannot find macro `foo` in this scope - //~| ERROR malformed `path` attribute input + //~| ERROR: attribute value must be a literal } } diff --git a/tests/ui/resolve/path-attr-in-const-block.stderr b/tests/ui/resolve/path-attr-in-const-block.stderr index 23f4e319c6d..19d2745577b 100644 --- a/tests/ui/resolve/path-attr-in-const-block.stderr +++ b/tests/ui/resolve/path-attr-in-const-block.stderr @@ -4,17 +4,11 @@ error: cannot find macro `foo` in this scope LL | #![path = foo!()] | ^^^ -error[E0539]: malformed `path` attribute input - --> $DIR/path-attr-in-const-block.rs:6:9 +error: attribute value must be a literal + --> $DIR/path-attr-in-const-block.rs:6:19 | LL | #![path = foo!()] - | ^^^^^^^^^^------^ - | | | - | | expected a string literal here - | help: must be of the form: `#![path = "file"]` - | - = note: for more information, visit <https://doc.rust-lang.org/reference/items/modules.html#the-path-attribute> + | ^^^^^^ error: aborting due to 2 previous errors -For more information about this error, try `rustc --explain E0539`. diff --git a/tests/ui/rfcs/rfc-1937-termination-trait/issue-103052-1.stderr b/tests/ui/rfcs/rfc-1937-termination-trait/issue-103052-1.stderr index 6c3d576cfba..7baa09b02b8 100644 --- a/tests/ui/rfcs/rfc-1937-termination-trait/issue-103052-1.stderr +++ b/tests/ui/rfcs/rfc-1937-termination-trait/issue-103052-1.stderr @@ -2,10 +2,15 @@ error[E0277]: the trait bound `Something: Termination` is not satisfied --> $DIR/issue-103052-1.rs:10:13 | LL | receive(Something); - | ------- ^^^^^^^^^ the trait `Termination` is not implemented for `Something` + | ------- ^^^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Termination` is not implemented for `Something` + --> $DIR/issue-103052-1.rs:7:1 + | +LL | struct Something; + | ^^^^^^^^^^^^^^^^ note: required by a bound in `receive` --> $DIR/issue-103052-1.rs:5:20 | diff --git a/tests/ui/rfcs/rfc-1937-termination-trait/issue-103052-2.stderr b/tests/ui/rfcs/rfc-1937-termination-trait/issue-103052-2.stderr index 99fd83e7b6f..643e3d3b680 100644 --- a/tests/ui/rfcs/rfc-1937-termination-trait/issue-103052-2.stderr +++ b/tests/ui/rfcs/rfc-1937-termination-trait/issue-103052-2.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `Something: Termination` is not satisfied --> $DIR/issue-103052-2.rs:9:22 | LL | fn main() -> Something { - | ^^^^^^^^^ the trait `Termination` is not implemented for `Something` + | ^^^^^^^^^ unsatisfied trait bound | +help: the trait `Termination` is not implemented for `Something` + --> $DIR/issue-103052-2.rs:6:5 + | +LL | struct Something; + | ^^^^^^^^^^^^^^^^ note: required by a bound in `Main::main::{anon_assoc#0}` --> $DIR/issue-103052-2.rs:3:27 | diff --git a/tests/ui/rfcs/rfc-1937-termination-trait/termination-trait-not-satisfied.stderr b/tests/ui/rfcs/rfc-1937-termination-trait/termination-trait-not-satisfied.stderr index 1b842c206ee..e799ba3f1b9 100644 --- a/tests/ui/rfcs/rfc-1937-termination-trait/termination-trait-not-satisfied.stderr +++ b/tests/ui/rfcs/rfc-1937-termination-trait/termination-trait-not-satisfied.stderr @@ -4,7 +4,11 @@ error[E0277]: `main` has invalid return type `ReturnType` LL | fn main() -> ReturnType { | ^^^^^^^^^^ `main` can only return types that implement `Termination` | - = help: consider using `()`, or a `Result` +help: consider using `()`, or a `Result` + --> $DIR/termination-trait-not-satisfied.rs:1:1 + | +LL | struct ReturnType {} + | ^^^^^^^^^^^^^^^^^ error: aborting due to 1 previous error diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/invalid-attribute.stderr b/tests/ui/rfcs/rfc-2008-non-exhaustive/invalid-attribute.stderr index 3522c459977..98e8f1235e6 100644 --- a/tests/ui/rfcs/rfc-2008-non-exhaustive/invalid-attribute.stderr +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/invalid-attribute.stderr @@ -13,7 +13,7 @@ error: `#[non_exhaustive]` attribute cannot be used on traits LL | #[non_exhaustive] | ^^^^^^^^^^^^^^^^^ | - = help: `#[non_exhaustive]` can be applied to data types, enum variants + = help: `#[non_exhaustive]` can be applied to data types and enum variants error: `#[non_exhaustive]` attribute cannot be used on unions --> $DIR/invalid-attribute.rs:9:1 @@ -21,7 +21,7 @@ error: `#[non_exhaustive]` attribute cannot be used on unions LL | #[non_exhaustive] | ^^^^^^^^^^^^^^^^^ | - = help: `#[non_exhaustive]` can be applied to data types, enum variants + = help: `#[non_exhaustive]` can be applied to data types and enum variants error: aborting due to 3 previous errors diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/protect-precedences.stderr b/tests/ui/rfcs/rfc-2497-if-let-chains/protect-precedences.stderr index 24b35a2ab31..689ccb4bc9a 100644 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/protect-precedences.stderr +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/protect-precedences.stderr @@ -6,7 +6,7 @@ LL | if let _ = return true && false {}; | | | any code following this expression is unreachable | - = note: `#[warn(unreachable_code)]` on by default + = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/rfcs/type-alias-impl-trait/higher-ranked-regions-basic.rs b/tests/ui/rfcs/type-alias-impl-trait/higher-ranked-regions-basic.rs index 80a4ab35527..5fa13152653 100644 --- a/tests/ui/rfcs/type-alias-impl-trait/higher-ranked-regions-basic.rs +++ b/tests/ui/rfcs/type-alias-impl-trait/higher-ranked-regions-basic.rs @@ -31,6 +31,7 @@ mod capture_tait { #[define_opaque(Opq2)] fn test() -> Opq2 {} //~^ ERROR hidden type for `capture_tait::Opq0` captures lifetime that does not appear in bounds + //~| ERROR expected generic lifetime parameter, found `'a` } mod capture_tait_complex_pass { @@ -52,7 +53,8 @@ mod capture_tait_complex_fail { type Opq2 = impl for<'a> Trait<'a, Ty = Opq1<'a>>; #[define_opaque(Opq2)] fn test() -> Opq2 {} - //~^ ERROR hidden type for `capture_tait_complex_fail::Opq0<'a>` captures lifetime that does not appear in bounds + //~^ ERROR expected generic lifetime parameter, found `'a` + //~| ERROR expected generic lifetime parameter, found `'a` } // non-defining use because 'static is used. diff --git a/tests/ui/rfcs/type-alias-impl-trait/higher-ranked-regions-basic.stderr b/tests/ui/rfcs/type-alias-impl-trait/higher-ranked-regions-basic.stderr index 665b9a91696..8e2c02f15c5 100644 --- a/tests/ui/rfcs/type-alias-impl-trait/higher-ranked-regions-basic.stderr +++ b/tests/ui/rfcs/type-alias-impl-trait/higher-ranked-regions-basic.stderr @@ -16,6 +16,15 @@ LL | fn test() -> impl for<'a> Trait<'a, Ty = impl Sized> {} | | opaque type defined here | hidden type `&'a ()` captures the lifetime `'a` as defined here +error[E0792]: expected generic lifetime parameter, found `'a` + --> $DIR/higher-ranked-regions-basic.rs:32:23 + | +LL | type Opq1<'a> = impl for<'b> Trait<'b, Ty = Opq0>; + | -- this generic parameter must be used with a generic lifetime parameter +... +LL | fn test() -> Opq2 {} + | ^^ + error[E0700]: hidden type for `capture_tait::Opq0` captures lifetime that does not appear in bounds --> $DIR/higher-ranked-regions-basic.rs:32:23 | @@ -28,7 +37,7 @@ LL | fn test() -> Opq2 {} | ^^ error[E0792]: expected generic lifetime parameter, found `'a` - --> $DIR/higher-ranked-regions-basic.rs:42:23 + --> $DIR/higher-ranked-regions-basic.rs:43:23 | LL | type Opq1<'a> = impl for<'b> Trait<'b, Ty = Opq0<'b>>; // <- Note 'b | -- this generic parameter must be used with a generic lifetime parameter @@ -37,7 +46,7 @@ LL | fn test() -> Opq2 {} | ^^ error[E0792]: expected generic lifetime parameter, found `'b` - --> $DIR/higher-ranked-regions-basic.rs:42:23 + --> $DIR/higher-ranked-regions-basic.rs:43:23 | LL | type Opq0<'a> = impl Sized; | -- this generic parameter must be used with a generic lifetime parameter @@ -45,19 +54,26 @@ LL | type Opq0<'a> = impl Sized; LL | fn test() -> Opq2 {} | ^^ -error[E0700]: hidden type for `capture_tait_complex_fail::Opq0<'a>` captures lifetime that does not appear in bounds - --> $DIR/higher-ranked-regions-basic.rs:54:23 +error[E0792]: expected generic lifetime parameter, found `'a` + --> $DIR/higher-ranked-regions-basic.rs:55:23 | -LL | type Opq0<'a> = impl Sized; - | ---------- opaque type defined here LL | type Opq1<'a> = impl for<'b> Trait<'b, Ty = Opq0<'a>>; // <- Note 'a - | -- hidden type `&'b ()` captures the lifetime `'b` as defined here + | -- this generic parameter must be used with a generic lifetime parameter +... +LL | fn test() -> Opq2 {} + | ^^ + +error[E0792]: expected generic lifetime parameter, found `'a` + --> $DIR/higher-ranked-regions-basic.rs:55:23 + | +LL | type Opq0<'a> = impl Sized; + | -- this generic parameter must be used with a generic lifetime parameter ... LL | fn test() -> Opq2 {} | ^^ error[E0792]: expected generic lifetime parameter, found `'a` - --> $DIR/higher-ranked-regions-basic.rs:63:65 + --> $DIR/higher-ranked-regions-basic.rs:65:65 | LL | type Opq0<'a, 'b> = impl Sized; | -- this generic parameter must be used with a generic lifetime parameter @@ -66,7 +82,7 @@ LL | fn test() -> impl for<'a> Trait<'a, Ty = Opq0<'a, 'static>> {} | ^^ error[E0792]: expected generic lifetime parameter, found `'a` - --> $DIR/higher-ranked-regions-basic.rs:72:60 + --> $DIR/higher-ranked-regions-basic.rs:74:60 | LL | type Opq0<'a, 'b> = impl Sized; | -- this generic parameter must be used with a generic lifetime parameter @@ -75,7 +91,7 @@ LL | fn test() -> impl for<'a> Trait<'a, Ty = Opq0<'a, 'a>> {} | ^^ error[E0792]: expected generic lifetime parameter, found `'a` - --> $DIR/higher-ranked-regions-basic.rs:82:23 + --> $DIR/higher-ranked-regions-basic.rs:84:23 | LL | type Opq1<'a> = impl for<'b> Trait<'b, Ty = Opq0<'a, 'b>>; | -- this generic parameter must be used with a generic lifetime parameter @@ -84,7 +100,7 @@ LL | fn test() -> Opq2 {} | ^^ error[E0792]: expected generic lifetime parameter, found `'a` - --> $DIR/higher-ranked-regions-basic.rs:82:23 + --> $DIR/higher-ranked-regions-basic.rs:84:23 | LL | type Opq0<'a, 'b> = impl Sized; | -- this generic parameter must be used with a generic lifetime parameter @@ -92,7 +108,7 @@ LL | type Opq0<'a, 'b> = impl Sized; LL | fn test() -> Opq2 {} | ^^ -error: aborting due to 10 previous errors +error: aborting due to 12 previous errors Some errors have detailed explanations: E0700, E0792. For more information about an error, try `rustc --explain E0700`. diff --git a/tests/ui/rust-2018/uniform-paths/macro-rules.stderr b/tests/ui/rust-2018/uniform-paths/macro-rules.stderr index 661d667eb9a..43eacd5413f 100644 --- a/tests/ui/rust-2018/uniform-paths/macro-rules.stderr +++ b/tests/ui/rust-2018/uniform-paths/macro-rules.stderr @@ -9,6 +9,10 @@ help: consider adding a `#[macro_export]` to the macro in the imported module | LL | macro_rules! legacy_macro { () => () } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +help: in case you want to use the macro within this crate only, reduce the visibility to `pub(crate)` + | +LL | pub(crate) use legacy_macro as _; + | +++++++ error: aborting due to 1 previous error diff --git a/tests/ui/sanitize-attr/invalid-sanitize.rs b/tests/ui/sanitize-attr/invalid-sanitize.rs index 49dc01c8daa..957ce780ad0 100644 --- a/tests/ui/sanitize-attr/invalid-sanitize.rs +++ b/tests/ui/sanitize-attr/invalid-sanitize.rs @@ -1,8 +1,7 @@ #![feature(sanitize)] -#[sanitize(brontosaurus = "off")] //~ ERROR invalid argument -fn main() { -} +#[sanitize(brontosaurus = "off")] //~ ERROR malformed `sanitize` attribute input +fn main() {} #[sanitize(address = "off")] //~ ERROR multiple `sanitize` attributes #[sanitize(address = "off")] @@ -12,11 +11,11 @@ fn multiple_consistent() {} #[sanitize(address = "off")] fn multiple_inconsistent() {} -#[sanitize(address = "bogus")] //~ ERROR invalid argument for `sanitize` +#[sanitize(address = "bogus")] //~ ERROR malformed `sanitize` attribute input fn wrong_value() {} #[sanitize = "off"] //~ ERROR malformed `sanitize` attribute input -fn name_value () {} +fn name_value() {} #[sanitize] //~ ERROR malformed `sanitize` attribute input fn just_word() {} diff --git a/tests/ui/sanitize-attr/invalid-sanitize.stderr b/tests/ui/sanitize-attr/invalid-sanitize.stderr index 4bf81770b89..ec0a93be142 100644 --- a/tests/ui/sanitize-attr/invalid-sanitize.stderr +++ b/tests/ui/sanitize-attr/invalid-sanitize.stderr @@ -1,82 +1,115 @@ -error: malformed `sanitize` attribute input - --> $DIR/invalid-sanitize.rs:18:1 +error[E0539]: malformed `sanitize` attribute input + --> $DIR/invalid-sanitize.rs:3:1 | -LL | #[sanitize = "off"] - | ^^^^^^^^^^^^^^^^^^^ +LL | #[sanitize(brontosaurus = "off")] + | ^^^^^^^^^^^------------^^^^^^^^^^ + | | + | valid arguments are "address", "cfi", "kcfi", "memory", "memtag", "shadow_call_stack", "thread" or "hwaddress" | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | -LL - #[sanitize = "off"] +LL - #[sanitize(brontosaurus = "off")] LL + #[sanitize(address = "on|off")] | -LL - #[sanitize = "off"] +LL - #[sanitize(brontosaurus = "off")] LL + #[sanitize(cfi = "on|off")] | -LL - #[sanitize = "off"] +LL - #[sanitize(brontosaurus = "off")] LL + #[sanitize(hwaddress = "on|off")] | -LL - #[sanitize = "off"] +LL - #[sanitize(brontosaurus = "off")] LL + #[sanitize(kcfi = "on|off")] | = and 5 other candidates -error: malformed `sanitize` attribute input - --> $DIR/invalid-sanitize.rs:21:1 - | -LL | #[sanitize] - | ^^^^^^^^^^^ - | -help: the following are the possible correct uses - | -LL | #[sanitize(address = "on|off")] - | ++++++++++++++++++++ -LL | #[sanitize(cfi = "on|off")] - | ++++++++++++++++ -LL | #[sanitize(hwaddress = "on|off")] - | ++++++++++++++++++++++ -LL | #[sanitize(kcfi = "on|off")] - | +++++++++++++++++ - = and 5 other candidates - error: multiple `sanitize` attributes - --> $DIR/invalid-sanitize.rs:7:1 + --> $DIR/invalid-sanitize.rs:6:1 | LL | #[sanitize(address = "off")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/invalid-sanitize.rs:8:1 + --> $DIR/invalid-sanitize.rs:7:1 | LL | #[sanitize(address = "off")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: multiple `sanitize` attributes - --> $DIR/invalid-sanitize.rs:11:1 + --> $DIR/invalid-sanitize.rs:10:1 | LL | #[sanitize(address = "on")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute | note: attribute also specified here - --> $DIR/invalid-sanitize.rs:12:1 + --> $DIR/invalid-sanitize.rs:11:1 | LL | #[sanitize(address = "off")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error: invalid argument for `sanitize` - --> $DIR/invalid-sanitize.rs:3:1 +error[E0539]: malformed `sanitize` attribute input + --> $DIR/invalid-sanitize.rs:14:1 | -LL | #[sanitize(brontosaurus = "off")] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | #[sanitize(address = "bogus")] + | ^^^^^^^^^^^^^^^^^^^^^-------^^ + | | + | valid arguments are "on" or "off" + | +help: try changing it to one of the following valid forms of the attribute + | +LL - #[sanitize(address = "bogus")] +LL + #[sanitize(address = "on|off")] + | +LL - #[sanitize(address = "bogus")] +LL + #[sanitize(cfi = "on|off")] + | +LL - #[sanitize(address = "bogus")] +LL + #[sanitize(hwaddress = "on|off")] + | +LL - #[sanitize(address = "bogus")] +LL + #[sanitize(kcfi = "on|off")] | - = note: expected one of: `address`, `kernel_address`, `cfi`, `hwaddress`, `kcfi`, `memory`, `memtag`, `shadow_call_stack`, or `thread` + = and 5 other candidates -error: invalid argument for `sanitize` - --> $DIR/invalid-sanitize.rs:15:1 +error[E0539]: malformed `sanitize` attribute input + --> $DIR/invalid-sanitize.rs:17:1 | -LL | #[sanitize(address = "bogus")] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | #[sanitize = "off"] + | ^^^^^^^^^^^^^^^^^^^ expected this to be a list + | +help: try changing it to one of the following valid forms of the attribute + | +LL - #[sanitize = "off"] +LL + #[sanitize(address = "on|off")] + | +LL - #[sanitize = "off"] +LL + #[sanitize(cfi = "on|off")] + | +LL - #[sanitize = "off"] +LL + #[sanitize(hwaddress = "on|off")] + | +LL - #[sanitize = "off"] +LL + #[sanitize(kcfi = "on|off")] + | + = and 5 other candidates + +error[E0539]: malformed `sanitize` attribute input + --> $DIR/invalid-sanitize.rs:20:1 | - = note: expected one of: `address`, `kernel_address`, `cfi`, `hwaddress`, `kcfi`, `memory`, `memtag`, `shadow_call_stack`, or `thread` +LL | #[sanitize] + | ^^^^^^^^^^^ expected this to be a list + | +help: try changing it to one of the following valid forms of the attribute + | +LL | #[sanitize(address = "on|off")] + | ++++++++++++++++++++ +LL | #[sanitize(cfi = "on|off")] + | ++++++++++++++++ +LL | #[sanitize(hwaddress = "on|off")] + | ++++++++++++++++++++++ +LL | #[sanitize(kcfi = "on|off")] + | +++++++++++++++++ + = and 5 other candidates error: aborting due to 6 previous errors +For more information about this error, try `rustc --explain E0539`. diff --git a/tests/ui/self/elision/ignore-non-reference-lifetimes.stderr b/tests/ui/self/elision/ignore-non-reference-lifetimes.stderr index 7108fa1a290..1a5c87114d4 100644 --- a/tests/ui/self/elision/ignore-non-reference-lifetimes.stderr +++ b/tests/ui/self/elision/ignore-non-reference-lifetimes.stderr @@ -1,8 +1,8 @@ warning: eliding a lifetime that's named elsewhere is confusing - --> $DIR/ignore-non-reference-lifetimes.rs:6:30 + --> $DIR/ignore-non-reference-lifetimes.rs:6:41 | LL | fn a<'a>(self: Self, a: &'a str) -> &str { - | ^^ ---- the same lifetime is elided here + | -- ^^^^ the same lifetime is elided here | | | the lifetime is named here | @@ -14,10 +14,10 @@ LL | fn a<'a>(self: Self, a: &'a str) -> &'a str { | ++ warning: eliding a lifetime that's named elsewhere is confusing - --> $DIR/ignore-non-reference-lifetimes.rs:10:33 + --> $DIR/ignore-non-reference-lifetimes.rs:10:44 | LL | fn b<'a>(self: Foo<'b>, a: &'a str) -> &str { - | ^^ ---- the same lifetime is elided here + | -- ^^^^ the same lifetime is elided here | | | the lifetime is named here | diff --git a/tests/ui/self/self-ctor-nongeneric.stderr b/tests/ui/self/self-ctor-nongeneric.stderr index 6c03c6f3e38..b53ecbe55b5 100644 --- a/tests/ui/self/self-ctor-nongeneric.stderr +++ b/tests/ui/self/self-ctor-nongeneric.stderr @@ -9,7 +9,7 @@ LL | const C: S0 = Self(0); | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124186 <https://github.com/rust-lang/rust/issues/124186> - = note: `#[warn(self_constructor_from_outer_item)]` on by default + = note: `#[warn(self_constructor_from_outer_item)]` (part of `#[warn(future_incompatible)]`) on by default warning: can't reference `Self` constructor from outer item --> $DIR/self-ctor-nongeneric.rs:12:13 diff --git a/tests/ui/self/self_lifetime-async.stderr b/tests/ui/self/self_lifetime-async.stderr index 43dc96abdc2..78cc610fd04 100644 --- a/tests/ui/self/self_lifetime-async.stderr +++ b/tests/ui/self/self_lifetime-async.stderr @@ -1,8 +1,8 @@ warning: eliding a lifetime that's named elsewhere is confusing - --> $DIR/self_lifetime-async.rs:6:29 + --> $DIR/self_lifetime-async.rs:6:44 | LL | async fn foo<'b>(self: &'b Foo<'a>) -> &() { self.0 } - | ^^ --- the same lifetime is elided here + | -- ^^^ the same lifetime is elided here | | | the lifetime is named here | @@ -14,10 +14,10 @@ LL | async fn foo<'b>(self: &'b Foo<'a>) -> &'b () { self.0 } | ++ warning: eliding a lifetime that's named elsewhere is confusing - --> $DIR/self_lifetime-async.rs:12:42 + --> $DIR/self_lifetime-async.rs:12:52 | LL | async fn bar<'a>(self: &Alias, arg: &'a ()) -> &() { arg } - | ^^ --- the same lifetime is elided here + | -- ^^^ the same lifetime is elided here | | | the lifetime is named here | diff --git a/tests/ui/self/self_lifetime.stderr b/tests/ui/self/self_lifetime.stderr index 4f9b2fcd2ad..84f63454633 100644 --- a/tests/ui/self/self_lifetime.stderr +++ b/tests/ui/self/self_lifetime.stderr @@ -1,8 +1,8 @@ warning: eliding a lifetime that's named elsewhere is confusing - --> $DIR/self_lifetime.rs:7:23 + --> $DIR/self_lifetime.rs:7:38 | LL | fn foo<'b>(self: &'b Foo<'a>) -> &() { self.0 } - | ^^ --- the same lifetime is elided here + | -- ^^^ the same lifetime is elided here | | | the lifetime is named here | @@ -14,10 +14,10 @@ LL | fn foo<'b>(self: &'b Foo<'a>) -> &'b () { self.0 } | ++ warning: eliding a lifetime that's named elsewhere is confusing - --> $DIR/self_lifetime.rs:13:36 + --> $DIR/self_lifetime.rs:13:46 | LL | fn bar<'a>(self: &Alias, arg: &'a ()) -> &() { arg } - | ^^ --- the same lifetime is elided here + | -- ^^^ the same lifetime is elided here | | | the lifetime is named here | diff --git a/tests/ui/sized/coinductive-2.stderr b/tests/ui/sized/coinductive-2.stderr index 1390b1f8d7b..5faec7397e2 100644 --- a/tests/ui/sized/coinductive-2.stderr +++ b/tests/ui/sized/coinductive-2.stderr @@ -4,7 +4,7 @@ warning: trait `Collection` is never used LL | trait Collection<T>: Sized { | ^^^^^^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/span/issue-24690.stderr b/tests/ui/span/issue-24690.stderr index 73e166e6403..8626108c0be 100644 --- a/tests/ui/span/issue-24690.stderr +++ b/tests/ui/span/issue-24690.stderr @@ -17,7 +17,7 @@ warning: variable `theTwo` should have a snake case name LL | let theTwo = 2; | ^^^^^^ help: convert the identifier to snake case: `the_two` | - = note: `#[warn(non_snake_case)]` on by default + = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default warning: variable `theOtherTwo` should have a snake case name --> $DIR/issue-24690.rs:13:9 diff --git a/tests/ui/span/issue-71363.stderr b/tests/ui/span/issue-71363.stderr index 31069914daa..d2f780bdbcb 100644 --- a/tests/ui/span/issue-71363.stderr +++ b/tests/ui/span/issue-71363.stderr @@ -2,8 +2,13 @@ error[E0277]: `MyError` doesn't implement `std::fmt::Display` --> $DIR/issue-71363.rs:4:28 | 4 | impl std::error::Error for MyError {} - | ^^^^^^^ the trait `std::fmt::Display` is not implemented for `MyError` + | ^^^^^^^ unsatisfied trait bound | +help: the trait `std::fmt::Display` is not implemented for `MyError` + --> $DIR/issue-71363.rs:3:1 + | +3 | struct MyError; + | ^^^^^^^^^^^^^^ note: required by a bound in `std::error::Error` --> $SRC_DIR/core/src/error.rs:LL:COL diff --git a/tests/ui/static/static-closures.rs b/tests/ui/static/static-closures.rs index 1bd518d6ffe..e836f1b85eb 100644 --- a/tests/ui/static/static-closures.rs +++ b/tests/ui/static/static-closures.rs @@ -1,4 +1,5 @@ fn main() { static || {}; //~^ ERROR closures cannot be static + //~| ERROR coroutine syntax is experimental } diff --git a/tests/ui/static/static-closures.stderr b/tests/ui/static/static-closures.stderr index b11c0b5a530..ecc961cc1e4 100644 --- a/tests/ui/static/static-closures.stderr +++ b/tests/ui/static/static-closures.stderr @@ -1,9 +1,20 @@ +error[E0658]: coroutine syntax is experimental + --> $DIR/static-closures.rs:2:5 + | +LL | static || {}; + | ^^^^^^ + | + = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information + = help: add `#![feature(coroutines)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + error[E0697]: closures cannot be static --> $DIR/static-closures.rs:2:5 | LL | static || {}; | ^^^^^^^^^ -error: aborting due to 1 previous error +error: aborting due to 2 previous errors -For more information about this error, try `rustc --explain E0697`. +Some errors have detailed explanations: E0658, E0697. +For more information about an error, try `rustc --explain E0658`. diff --git a/tests/ui/issues/issue-8578.rs b/tests/ui/static/static-struct-with-option-8578.rs index 9baa2f70a02..d490a3f50b4 100644 --- a/tests/ui/issues/issue-8578.rs +++ b/tests/ui/static/static-struct-with-option-8578.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/8578 //@ check-pass #![allow(dead_code)] #![allow(non_camel_case_types)] diff --git a/tests/ui/statics/issue-15261.stderr b/tests/ui/statics/issue-15261.stderr index 60c5fb93dba..20ac0785245 100644 --- a/tests/ui/statics/issue-15261.stderr +++ b/tests/ui/statics/issue-15261.stderr @@ -6,7 +6,7 @@ LL | static n: &'static usize = unsafe { &n_mut }; | = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html> = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives - = note: `#[warn(static_mut_refs)]` on by default + = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `&raw const` instead to create a raw pointer | LL | static n: &'static usize = unsafe { &raw const n_mut }; diff --git a/tests/ui/statics/issue-17718-static-sync.stderr b/tests/ui/statics/issue-17718-static-sync.stderr index 96f894146c5..3a6e3becbad 100644 --- a/tests/ui/statics/issue-17718-static-sync.stderr +++ b/tests/ui/statics/issue-17718-static-sync.stderr @@ -4,7 +4,11 @@ error[E0277]: `Foo` cannot be shared between threads safely LL | static BAR: Foo = Foo; | ^^^ `Foo` cannot be shared between threads safely | - = help: the trait `Sync` is not implemented for `Foo` +help: the trait `Sync` is not implemented for `Foo` + --> $DIR/issue-17718-static-sync.rs:5:1 + | +LL | struct Foo; + | ^^^^^^^^^^ = note: shared static variables must have a type that implements `Sync` error: aborting due to 1 previous error diff --git a/tests/ui/statics/static-impl.stderr b/tests/ui/statics/static-impl.stderr index 83c3ffbefe1..77785d1df0e 100644 --- a/tests/ui/statics/static-impl.stderr +++ b/tests/ui/statics/static-impl.stderr @@ -7,7 +7,7 @@ LL | fn length_(&self, ) -> usize; LL | fn iter_<F>(&self, f: F) where F: FnMut(&T); | ^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/statics/static-mut-shared-parens.stderr b/tests/ui/statics/static-mut-shared-parens.stderr index 16daee091a8..c900fcde16f 100644 --- a/tests/ui/statics/static-mut-shared-parens.stderr +++ b/tests/ui/statics/static-mut-shared-parens.stderr @@ -6,7 +6,7 @@ LL | let _ = unsafe { (&TEST) as *const usize }; | = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html> = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives - = note: `#[warn(static_mut_refs)]` on by default + = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `&raw const` instead to create a raw pointer | LL | let _ = unsafe { (&raw const TEST) as *const usize }; diff --git a/tests/ui/statics/static-mut-xc.stderr b/tests/ui/statics/static-mut-xc.stderr index 2e5aa1b2645..73c4e91b8e0 100644 --- a/tests/ui/statics/static-mut-xc.stderr +++ b/tests/ui/statics/static-mut-xc.stderr @@ -6,7 +6,7 @@ LL | assert_eq!(static_mut_xc::a, 3); | = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html> = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives - = note: `#[warn(static_mut_refs)]` on by default + = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default warning: creating a shared reference to mutable static --> $DIR/static-mut-xc.rs:22:16 diff --git a/tests/ui/statics/static-recursive.stderr b/tests/ui/statics/static-recursive.stderr index 0c3f961372b..16d5e183ccb 100644 --- a/tests/ui/statics/static-recursive.stderr +++ b/tests/ui/statics/static-recursive.stderr @@ -6,7 +6,7 @@ LL | static mut S: *const u8 = unsafe { &S as *const *const u8 as *const u8 }; | = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html> = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives - = note: `#[warn(static_mut_refs)]` on by default + = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default help: use `&raw const` instead to create a raw pointer | LL | static mut S: *const u8 = unsafe { &raw const S as *const *const u8 as *const u8 }; diff --git a/tests/ui/std/issue-3563-3.stderr b/tests/ui/std/issue-3563-3.stderr index bd65c1e3fd5..5885bafeb99 100644 --- a/tests/ui/std/issue-3563-3.stderr +++ b/tests/ui/std/issue-3563-3.stderr @@ -7,7 +7,7 @@ LL | trait Canvas { LL | fn add_points(&mut self, shapes: &[Point]) { | ^^^^^^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/stdlib-unit-tests/raw-fat-ptr.stderr b/tests/ui/stdlib-unit-tests/raw-fat-ptr.stderr index 670fa5bb922..8108296621c 100644 --- a/tests/ui/stdlib-unit-tests/raw-fat-ptr.stderr +++ b/tests/ui/stdlib-unit-tests/raw-fat-ptr.stderr @@ -6,7 +6,7 @@ LL | trait Foo { fn foo(&self) -> usize; } | | | method in this trait | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/issues/auxiliary/issue-8044.rs b/tests/ui/structs-enums/auxiliary/aux-8044.rs index 2ec25f51cde..2ec25f51cde 100644 --- a/tests/ui/issues/auxiliary/issue-8044.rs +++ b/tests/ui/structs-enums/auxiliary/aux-8044.rs diff --git a/tests/ui/structs-enums/enum-null-pointer-opt.stderr b/tests/ui/structs-enums/enum-null-pointer-opt.stderr index 64e93ffaffd..178d76cd732 100644 --- a/tests/ui/structs-enums/enum-null-pointer-opt.stderr +++ b/tests/ui/structs-enums/enum-null-pointer-opt.stderr @@ -6,7 +6,7 @@ LL | trait Trait { fn dummy(&self) { } } | | | method in this trait | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/structs-enums/struct-and-enum-usage-8044.rs b/tests/ui/structs-enums/struct-and-enum-usage-8044.rs new file mode 100644 index 00000000000..9b544f33f1c --- /dev/null +++ b/tests/ui/structs-enums/struct-and-enum-usage-8044.rs @@ -0,0 +1,10 @@ +// https://github.com/rust-lang/rust/issues/8044 +//@ run-pass +//@ aux-build:aux-8044.rs + +extern crate aux_8044 as minimal; +use minimal::{BTree, leaf}; + +pub fn main() { + BTree::<isize> { node: leaf(1) }; +} diff --git a/tests/ui/issues/issue-8783.rs b/tests/ui/structs/destructuring-struct-type-inference-8783.rs index d0ff79f8ac8..60bc4bf3289 100644 --- a/tests/ui/issues/issue-8783.rs +++ b/tests/ui/structs/destructuring-struct-type-inference-8783.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/8783 //@ run-pass #![allow(unused_variables)] diff --git a/tests/ui/suggestions/dont-suggest-borrowing-existing-borrow.stderr b/tests/ui/suggestions/dont-suggest-borrowing-existing-borrow.stderr index c2e2fe941a6..86d9a745b87 100644 --- a/tests/ui/suggestions/dont-suggest-borrowing-existing-borrow.stderr +++ b/tests/ui/suggestions/dont-suggest-borrowing-existing-borrow.stderr @@ -20,8 +20,13 @@ error[E0277]: the trait bound `S: Trait` is not satisfied --> $DIR/dont-suggest-borrowing-existing-borrow.rs:17:18 | LL | let _ = &mut S::foo(); - | ^ the trait `Trait` is not implemented for `S` + | ^ unsatisfied trait bound | +help: the trait `Trait` is not implemented for `S` + --> $DIR/dont-suggest-borrowing-existing-borrow.rs:3:1 + | +LL | struct S; + | ^^^^^^^^ = help: the trait `Trait` is implemented for `&mut S` help: you likely meant to call the associated function `foo` for type `&mut S`, but the code as written calls associated function `foo` on type `S` | @@ -32,8 +37,13 @@ error[E0277]: the trait bound `S: Trait` is not satisfied --> $DIR/dont-suggest-borrowing-existing-borrow.rs:19:14 | LL | let _ = &S::foo(); - | ^ the trait `Trait` is not implemented for `S` + | ^ unsatisfied trait bound + | +help: the trait `Trait` is not implemented for `S` + --> $DIR/dont-suggest-borrowing-existing-borrow.rs:3:1 | +LL | struct S; + | ^^^^^^^^ = help: the trait `Trait` is implemented for `&mut S` help: you likely meant to call the associated function `foo` for type `&S`, but the code as written calls associated function `foo` on type `S` | @@ -56,8 +66,13 @@ error[E0277]: the trait bound `S: Trait2` is not satisfied --> $DIR/dont-suggest-borrowing-existing-borrow.rs:23:18 | LL | let _ = &mut S::bar(); - | ^ the trait `Trait2` is not implemented for `S` + | ^ unsatisfied trait bound | +help: the trait `Trait2` is not implemented for `S` + --> $DIR/dont-suggest-borrowing-existing-borrow.rs:3:1 + | +LL | struct S; + | ^^^^^^^^ = help: the following other types implement trait `Trait2`: &S &mut S @@ -70,8 +85,13 @@ error[E0277]: the trait bound `S: Trait2` is not satisfied --> $DIR/dont-suggest-borrowing-existing-borrow.rs:25:14 | LL | let _ = &S::bar(); - | ^ the trait `Trait2` is not implemented for `S` + | ^ unsatisfied trait bound + | +help: the trait `Trait2` is not implemented for `S` + --> $DIR/dont-suggest-borrowing-existing-borrow.rs:3:1 | +LL | struct S; + | ^^^^^^^^ = help: the following other types implement trait `Trait2`: &S &mut S diff --git a/tests/ui/suggestions/dont-try-removing-the-field.stderr b/tests/ui/suggestions/dont-try-removing-the-field.stderr index 263171a4ac4..e327b21417a 100644 --- a/tests/ui/suggestions/dont-try-removing-the-field.stderr +++ b/tests/ui/suggestions/dont-try-removing-the-field.stderr @@ -4,7 +4,7 @@ warning: unused variable: `baz` LL | let Foo { foo, bar, baz } = x; | ^^^ help: try ignoring the field: `baz: _` | - = note: `#[warn(unused_variables)]` on by default + = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/suggestions/ice-unwrap-probe-many-result-125876.stderr b/tests/ui/suggestions/ice-unwrap-probe-many-result-125876.stderr index 696151b6ee2..8bb2bb290d3 100644 --- a/tests/ui/suggestions/ice-unwrap-probe-many-result-125876.stderr +++ b/tests/ui/suggestions/ice-unwrap-probe-many-result-125876.stderr @@ -12,7 +12,7 @@ LL | std::ptr::from_ref(num).cast_mut().as_deref(); | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! = note: for more information, see issue #46906 <https://github.com/rust-lang/rust/issues/46906> - = note: `#[warn(tyvar_behind_raw_pointer)]` on by default + = note: `#[warn(tyvar_behind_raw_pointer)]` (part of `#[warn(rust_2018_compatibility)]`) on by default warning: type annotations needed --> $DIR/ice-unwrap-probe-many-result-125876.rs:5:40 diff --git a/tests/ui/suggestions/impl-on-dyn-trait-with-implicit-static-bound-needing-more-suggestions.rs b/tests/ui/suggestions/impl-on-dyn-trait-with-implicit-static-bound-needing-more-suggestions.rs index c24672816ac..eb9b376686a 100644 --- a/tests/ui/suggestions/impl-on-dyn-trait-with-implicit-static-bound-needing-more-suggestions.rs +++ b/tests/ui/suggestions/impl-on-dyn-trait-with-implicit-static-bound-needing-more-suggestions.rs @@ -18,7 +18,7 @@ mod bav { impl Bar for i32 {} fn use_it<'a>(val: Box<dyn ObjectTrait<Assoc = i32>>) -> impl OtherTrait<'a> { - val.use_self() //~ ERROR cannot return value referencing function parameter + val.use_self() //~ ERROR cannot return value referencing function parameter `val` } } diff --git a/tests/ui/suggestions/inner_type.fixed b/tests/ui/suggestions/inner_type.fixed index 8174f8e204e..8671c43226c 100644 --- a/tests/ui/suggestions/inner_type.fixed +++ b/tests/ui/suggestions/inner_type.fixed @@ -31,10 +31,10 @@ fn main() { let another_item = std::sync::RwLock::new(Struct { p: 42_u32 }); another_item.read().unwrap().method(); - //~^ ERROR no method named `method` found for struct `RwLock<T>` in the current scope [E0599] + //~^ ERROR no method named `method` found for struct `std::sync::RwLock<T>` in the current scope [E0599] //~| HELP use `.read().unwrap()` to borrow the `Struct<u32>`, blocking the current thread until it can be acquired another_item.write().unwrap().some_mutable_method(); - //~^ ERROR no method named `some_mutable_method` found for struct `RwLock<T>` in the current scope [E0599] + //~^ ERROR no method named `some_mutable_method` found for struct `std::sync::RwLock<T>` in the current scope [E0599] //~| HELP use `.write().unwrap()` to mutably borrow the `Struct<u32>`, blocking the current thread until it can be acquired } diff --git a/tests/ui/suggestions/inner_type.rs b/tests/ui/suggestions/inner_type.rs index e4eaf07ca8b..793372c7deb 100644 --- a/tests/ui/suggestions/inner_type.rs +++ b/tests/ui/suggestions/inner_type.rs @@ -31,10 +31,10 @@ fn main() { let another_item = std::sync::RwLock::new(Struct { p: 42_u32 }); another_item.method(); - //~^ ERROR no method named `method` found for struct `RwLock<T>` in the current scope [E0599] + //~^ ERROR no method named `method` found for struct `std::sync::RwLock<T>` in the current scope [E0599] //~| HELP use `.read().unwrap()` to borrow the `Struct<u32>`, blocking the current thread until it can be acquired another_item.some_mutable_method(); - //~^ ERROR no method named `some_mutable_method` found for struct `RwLock<T>` in the current scope [E0599] + //~^ ERROR no method named `some_mutable_method` found for struct `std::sync::RwLock<T>` in the current scope [E0599] //~| HELP use `.write().unwrap()` to mutably borrow the `Struct<u32>`, blocking the current thread until it can be acquired } diff --git a/tests/ui/suggestions/inner_type.stderr b/tests/ui/suggestions/inner_type.stderr index 017ddb5ad6d..d2f7fa92bc6 100644 --- a/tests/ui/suggestions/inner_type.stderr +++ b/tests/ui/suggestions/inner_type.stderr @@ -46,11 +46,11 @@ help: use `.lock().unwrap()` to borrow the `Struct<u32>`, blocking the current t LL | another_item.lock().unwrap().method(); | ++++++++++++++++ -error[E0599]: no method named `method` found for struct `RwLock<T>` in the current scope +error[E0599]: no method named `method` found for struct `std::sync::RwLock<T>` in the current scope --> $DIR/inner_type.rs:33:18 | LL | another_item.method(); - | ^^^^^^ method not found in `RwLock<Struct<u32>>` + | ^^^^^^ method not found in `std::sync::RwLock<Struct<u32>>` | note: the method `method` exists on the type `Struct<u32>` --> $DIR/inner_type.rs:9:5 @@ -62,11 +62,11 @@ help: use `.read().unwrap()` to borrow the `Struct<u32>`, blocking the current t LL | another_item.read().unwrap().method(); | ++++++++++++++++ -error[E0599]: no method named `some_mutable_method` found for struct `RwLock<T>` in the current scope +error[E0599]: no method named `some_mutable_method` found for struct `std::sync::RwLock<T>` in the current scope --> $DIR/inner_type.rs:37:18 | LL | another_item.some_mutable_method(); - | ^^^^^^^^^^^^^^^^^^^ method not found in `RwLock<Struct<u32>>` + | ^^^^^^^^^^^^^^^^^^^ method not found in `std::sync::RwLock<Struct<u32>>` | note: the method `some_mutable_method` exists on the type `Struct<u32>` --> $DIR/inner_type.rs:11:5 diff --git a/tests/ui/suggestions/issue-116434-2015.stderr b/tests/ui/suggestions/issue-116434-2015.stderr index e7173d91438..475cc849625 100644 --- a/tests/ui/suggestions/issue-116434-2015.stderr +++ b/tests/ui/suggestions/issue-116434-2015.stderr @@ -6,7 +6,7 @@ LL | fn foo() -> Clone; | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | fn foo() -> dyn Clone; diff --git a/tests/ui/suggestions/issue-96223.stderr b/tests/ui/suggestions/issue-96223.stderr index a54a4e7b3be..89dd094276a 100644 --- a/tests/ui/suggestions/issue-96223.stderr +++ b/tests/ui/suggestions/issue-96223.stderr @@ -2,10 +2,15 @@ error[E0277]: the trait bound `for<'de> EmptyBis<'de>: Foo<'_>` is not satisfied --> $DIR/issue-96223.rs:49:17 | LL | icey_bounds(&p); - | ----------- ^^ the trait `for<'de> Foo<'_>` is not implemented for `EmptyBis<'de>` + | ----------- ^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `for<'de> Foo<'_>` is not implemented for `EmptyBis<'de>` + --> $DIR/issue-96223.rs:33:1 + | +LL | pub struct EmptyBis<'a>(&'a [u8]); + | ^^^^^^^^^^^^^^^^^^^^^^^ = help: the trait `Foo<'de>` is implemented for `Baz<T>` note: required for `Baz<EmptyBis<'de>>` to implement `for<'de> Foo<'de>` --> $DIR/issue-96223.rs:16:14 diff --git a/tests/ui/suggestions/lifetimes/explicit-lifetime-suggestion-in-proper-span-issue-121267.stderr b/tests/ui/suggestions/lifetimes/explicit-lifetime-suggestion-in-proper-span-issue-121267.stderr index 3a1f685f16b..9a3cfa9987a 100644 --- a/tests/ui/suggestions/lifetimes/explicit-lifetime-suggestion-in-proper-span-issue-121267.stderr +++ b/tests/ui/suggestions/lifetimes/explicit-lifetime-suggestion-in-proper-span-issue-121267.stderr @@ -8,7 +8,7 @@ LL | | LL | | .filter_map(|_| foo(src)) | |_________________________________^ | - = note: hidden type `FilterMap<std::slice::Iter<'static, i32>, {closure@$DIR/explicit-lifetime-suggestion-in-proper-span-issue-121267.rs:9:21: 9:24}>` captures lifetime `'_` + = note: hidden type `FilterMap<std::slice::Iter<'_, i32>, {closure@$DIR/explicit-lifetime-suggestion-in-proper-span-issue-121267.rs:9:21: 9:24}>` captures lifetime `'_` error: aborting due to 1 previous error diff --git a/tests/ui/suggestions/suggest-swapping-self-ty-and-trait.stderr b/tests/ui/suggestions/suggest-swapping-self-ty-and-trait.stderr index d90dd201bcf..72ac7209bdf 100644 --- a/tests/ui/suggestions/suggest-swapping-self-ty-and-trait.stderr +++ b/tests/ui/suggestions/suggest-swapping-self-ty-and-trait.stderr @@ -69,7 +69,7 @@ LL | impl<'a, T> Struct<T> for Trait<'a, T> {} | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | impl<'a, T> Struct<T> for dyn Trait<'a, T> {} diff --git a/tests/ui/suggestions/try-removing-the-field.stderr b/tests/ui/suggestions/try-removing-the-field.stderr index 7a6013d4a6e..aaf260bb86e 100644 --- a/tests/ui/suggestions/try-removing-the-field.stderr +++ b/tests/ui/suggestions/try-removing-the-field.stderr @@ -6,7 +6,7 @@ LL | let Foo { foo, bar, .. } = x; | | | help: try removing the field | - = note: `#[warn(unused_variables)]` on by default + = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default warning: unused variable: `unused` --> $DIR/try-removing-the-field.rs:20:20 diff --git a/tests/ui/target-feature/invalid-attribute.stderr b/tests/ui/target-feature/invalid-attribute.stderr index a0117649a57..7b75367b48c 100644 --- a/tests/ui/target-feature/invalid-attribute.stderr +++ b/tests/ui/target-feature/invalid-attribute.stderr @@ -143,7 +143,7 @@ error: `#[target_feature]` attribute cannot be used on closures LL | #[target_feature(enable = "sse2")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: `#[target_feature]` can be applied to methods, functions + = help: `#[target_feature]` can be applied to methods and functions error: cannot use `#[inline(always)]` with `#[target_feature]` --> $DIR/invalid-attribute.rs:62:1 diff --git a/tests/ui/issues/issue-83048.rs b/tests/ui/thir-print/break-outside-loop-error-83048.rs index 6c941133a15..6dcebd77c27 100644 --- a/tests/ui/issues/issue-83048.rs +++ b/tests/ui/thir-print/break-outside-loop-error-83048.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/83048 //@ compile-flags: -Z unpretty=thir-tree pub fn main() { diff --git a/tests/ui/issues/issue-83048.stderr b/tests/ui/thir-print/break-outside-loop-error-83048.stderr index 672bf69a732..65a08e62e3d 100644 --- a/tests/ui/issues/issue-83048.stderr +++ b/tests/ui/thir-print/break-outside-loop-error-83048.stderr @@ -1,5 +1,5 @@ error[E0268]: `break` outside of a loop or labeled block - --> $DIR/issue-83048.rs:4:5 + --> $DIR/break-outside-loop-error-83048.rs:5:5 | LL | break; | ^^^^^ cannot `break` outside of a loop or labeled block diff --git a/tests/ui/issues/issue-87707.rs b/tests/ui/track-diagnostics/track-caller-for-once-87707.rs index a0da8a740ac..9b450943f5d 100644 --- a/tests/ui/issues/issue-87707.rs +++ b/tests/ui/track-diagnostics/track-caller-for-once-87707.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/87707 // test for #87707 //@ edition:2018 //@ run-fail diff --git a/tests/ui/issues/issue-87707.run.stderr b/tests/ui/track-diagnostics/track-caller-for-once-87707.run.stderr index 8485c0578b8..093df62836b 100644 --- a/tests/ui/issues/issue-87707.run.stderr +++ b/tests/ui/track-diagnostics/track-caller-for-once-87707.run.stderr @@ -1,7 +1,7 @@ -thread 'main' ($TID) panicked at $DIR/issue-87707.rs:14:24: +thread 'main' ($TID) panicked at $DIR/track-caller-for-once-87707.rs:15:24: Here Once instance is poisoned. note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace -thread 'main' ($TID) panicked at $DIR/issue-87707.rs:16:7: +thread 'main' ($TID) panicked at $DIR/track-caller-for-once-87707.rs:17:7: Once instance has previously been poisoned diff --git a/tests/ui/issues/issue-87199.rs b/tests/ui/trait-bounds/relaxed-bounds-assumed-unsized-87199.rs index dd9dfc74ca3..f3baa4b1feb 100644 --- a/tests/ui/issues/issue-87199.rs +++ b/tests/ui/trait-bounds/relaxed-bounds-assumed-unsized-87199.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/87199 // Regression test for issue #87199, where attempting to relax a bound // other than the only supported `?Sized` would still cause the compiler // to assume that the `Sized` bound was relaxed. diff --git a/tests/ui/issues/issue-87199.stderr b/tests/ui/trait-bounds/relaxed-bounds-assumed-unsized-87199.stderr index 8a930a3d704..16223676c06 100644 --- a/tests/ui/issues/issue-87199.stderr +++ b/tests/ui/trait-bounds/relaxed-bounds-assumed-unsized-87199.stderr @@ -1,23 +1,23 @@ error: bound modifier `?` can only be applied to `Sized` - --> $DIR/issue-87199.rs:8:11 + --> $DIR/relaxed-bounds-assumed-unsized-87199.rs:9:11 | LL | fn arg<T: ?Send>(_: T) {} | ^^^^^ error: bound modifier `?` can only be applied to `Sized` - --> $DIR/issue-87199.rs:10:15 + --> $DIR/relaxed-bounds-assumed-unsized-87199.rs:11:15 | LL | fn ref_arg<T: ?Send>(_: &T) {} | ^^^^^ error: bound modifier `?` can only be applied to `Sized` - --> $DIR/issue-87199.rs:12:40 + --> $DIR/relaxed-bounds-assumed-unsized-87199.rs:13:40 | LL | fn ret() -> impl Iterator<Item = ()> + ?Send { std::iter::empty() } | ^^^^^ error: bound modifier `?` can only be applied to `Sized` - --> $DIR/issue-87199.rs:12:40 + --> $DIR/relaxed-bounds-assumed-unsized-87199.rs:13:40 | LL | fn ret() -> impl Iterator<Item = ()> + ?Send { std::iter::empty() } | ^^^^^ @@ -25,14 +25,14 @@ LL | fn ret() -> impl Iterator<Item = ()> + ?Send { std::iter::empty() } = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` error[E0277]: the size for values of type `[i32]` cannot be known at compilation time - --> $DIR/issue-87199.rs:19:15 + --> $DIR/relaxed-bounds-assumed-unsized-87199.rs:20:15 | LL | ref_arg::<[i32]>(&[5]); | ^^^^^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `[i32]` note: required by an implicit `Sized` bound in `ref_arg` - --> $DIR/issue-87199.rs:10:12 + --> $DIR/relaxed-bounds-assumed-unsized-87199.rs:11:12 | LL | fn ref_arg<T: ?Send>(_: &T) {} | ^ required by the implicit `Sized` requirement on this type parameter in `ref_arg` diff --git a/tests/ui/trait-bounds/trait-bound-adt-issue-145611.rs b/tests/ui/trait-bounds/trait-bound-adt-issue-145611.rs new file mode 100644 index 00000000000..74551ce493f --- /dev/null +++ b/tests/ui/trait-bounds/trait-bound-adt-issue-145611.rs @@ -0,0 +1,11 @@ +// This test is for regression of issue #145611 +// There should not be cycle error in effective_visibilities query. + +trait LocalTrait {} +struct SomeType; +fn impls_trait<T: LocalTrait>() {} +fn foo() -> impl Sized { + impls_trait::<SomeType>(); //~ ERROR the trait bound `SomeType: LocalTrait` is not satisfied [E0277] +} + +fn main() {} diff --git a/tests/ui/trait-bounds/trait-bound-adt-issue-145611.stderr b/tests/ui/trait-bounds/trait-bound-adt-issue-145611.stderr new file mode 100644 index 00000000000..9f47f9bc02a --- /dev/null +++ b/tests/ui/trait-bounds/trait-bound-adt-issue-145611.stderr @@ -0,0 +1,25 @@ +error[E0277]: the trait bound `SomeType: LocalTrait` is not satisfied + --> $DIR/trait-bound-adt-issue-145611.rs:8:19 + | +LL | impls_trait::<SomeType>(); + | ^^^^^^^^ unsatisfied trait bound + | +help: the trait `LocalTrait` is not implemented for `SomeType` + --> $DIR/trait-bound-adt-issue-145611.rs:5:1 + | +LL | struct SomeType; + | ^^^^^^^^^^^^^^^ +help: this trait has no implementations, consider adding one + --> $DIR/trait-bound-adt-issue-145611.rs:4:1 + | +LL | trait LocalTrait {} + | ^^^^^^^^^^^^^^^^ +note: required by a bound in `impls_trait` + --> $DIR/trait-bound-adt-issue-145611.rs:6:19 + | +LL | fn impls_trait<T: LocalTrait>() {} + | ^^^^^^^^^^ required by this bound in `impls_trait` + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/traits/alias/bounds.stderr b/tests/ui/traits/alias/bounds.stderr index 7fb8e918da3..215a9b57fbf 100644 --- a/tests/ui/traits/alias/bounds.stderr +++ b/tests/ui/traits/alias/bounds.stderr @@ -4,7 +4,7 @@ warning: trait `Empty` is never used LL | trait Empty {} | ^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/traits/alias/style_lint.stderr b/tests/ui/traits/alias/style_lint.stderr index 91e2ea90eb9..e11e51c018f 100644 --- a/tests/ui/traits/alias/style_lint.stderr +++ b/tests/ui/traits/alias/style_lint.stderr @@ -4,7 +4,7 @@ warning: trait alias `bar` should have an upper camel case name LL | trait bar = std::fmt::Display + std::fmt::Debug; | ^^^ help: convert the identifier to upper camel case: `Bar` | - = note: `#[warn(non_camel_case_types)]` on by default + = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/issues/auxiliary/issue-9123.rs b/tests/ui/traits/auxiliary/aux-9123.rs index 60af53359e8..60af53359e8 100644 --- a/tests/ui/issues/auxiliary/issue-9123.rs +++ b/tests/ui/traits/auxiliary/aux-9123.rs diff --git a/tests/ui/traits/bound/not-on-bare-trait.stderr b/tests/ui/traits/bound/not-on-bare-trait.stderr index 69413ca96cd..fa2c531d535 100644 --- a/tests/ui/traits/bound/not-on-bare-trait.stderr +++ b/tests/ui/traits/bound/not-on-bare-trait.stderr @@ -6,7 +6,7 @@ LL | fn foo(_x: Foo + Send) { | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | fn foo(_x: dyn Foo + Send) { diff --git a/tests/ui/traits/coercion-generic-bad.stderr b/tests/ui/traits/coercion-generic-bad.stderr index c0553ea62c5..6af96b9daf7 100644 --- a/tests/ui/traits/coercion-generic-bad.stderr +++ b/tests/ui/traits/coercion-generic-bad.stderr @@ -2,7 +2,7 @@ error[E0277]: the trait bound `Struct: Trait<isize>` is not satisfied --> $DIR/coercion-generic-bad.rs:16:36 | LL | let s: Box<dyn Trait<isize>> = Box::new(Struct { person: "Fred" }); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Trait<isize>` is not implemented for `Struct` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | = help: the trait `Trait<isize>` is not implemented for `Struct` but trait `Trait<&'static str>` is implemented for it diff --git a/tests/ui/traits/const-traits/const-supertraits-dyn-compat.rs b/tests/ui/traits/const-traits/const-supertraits-dyn-compat.rs new file mode 100644 index 00000000000..2d12bc81af6 --- /dev/null +++ b/tests/ui/traits/const-traits/const-supertraits-dyn-compat.rs @@ -0,0 +1,18 @@ +#![feature(const_trait_impl)] + +const trait Super {} + +// Not ok +const trait Unconditionally: const Super {} +fn test() { + let _: &dyn Unconditionally; + //~^ ERROR the trait `Unconditionally` is not dyn compatible +} + +// Okay +const trait Conditionally: [const] Super {} +fn test2() { + let _: &dyn Conditionally; +} + +fn main() {} diff --git a/tests/ui/traits/const-traits/const-supertraits-dyn-compat.stderr b/tests/ui/traits/const-traits/const-supertraits-dyn-compat.stderr new file mode 100644 index 00000000000..ceb07081c9e --- /dev/null +++ b/tests/ui/traits/const-traits/const-supertraits-dyn-compat.stderr @@ -0,0 +1,18 @@ +error[E0038]: the trait `Unconditionally` is not dyn compatible + --> $DIR/const-supertraits-dyn-compat.rs:8:17 + | +LL | let _: &dyn Unconditionally; + | ^^^^^^^^^^^^^^^ `Unconditionally` is not dyn compatible + | +note: for a trait to be dyn compatible it needs to allow building a vtable + for more information, visit <https://doc.rust-lang.org/reference/items/traits.html#dyn-compatibility> + --> $DIR/const-supertraits-dyn-compat.rs:6:30 + | +LL | const trait Unconditionally: const Super {} + | --------------- ^^^^^^^^^^^ ...because it cannot have a `const` supertrait + | | + | this trait is not dyn compatible... + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0038`. diff --git a/tests/ui/traits/const-traits/constructor-const-fn.rs b/tests/ui/traits/const-traits/constructor-const-fn.rs new file mode 100644 index 00000000000..4a7bf531df2 --- /dev/null +++ b/tests/ui/traits/const-traits/constructor-const-fn.rs @@ -0,0 +1,15 @@ +//@ check-pass +//@ compile-flags: -Znext-solver +#![feature(const_trait_impl)] +const fn impls_fn<F: ~const Fn(u32) -> Foo>(_: &F) {} + +struct Foo(u32); + +const fn foo() { + // This previously triggered an incorrect assert + // when checking whether the constructor of `Foo` + // is const. + impls_fn(&Foo) +} + +fn main() {} diff --git a/tests/ui/traits/const-traits/macro-const-trait-bound-theoretical-regression.stderr b/tests/ui/traits/const-traits/macro-const-trait-bound-theoretical-regression.stderr index 9fad260f0be..7a4061d9c18 100644 --- a/tests/ui/traits/const-traits/macro-const-trait-bound-theoretical-regression.stderr +++ b/tests/ui/traits/const-traits/macro-const-trait-bound-theoretical-regression.stderr @@ -45,7 +45,7 @@ LL | demo! { impl const Trait } | = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default = note: this warning originates in the macro `demo` (in Nightly builds, run with -Z macro-backtrace for more info) help: you might have intended to implement this trait for a given type | diff --git a/tests/ui/traits/const-traits/reservation-impl-ice.rs b/tests/ui/traits/const-traits/reservation-impl-ice.rs new file mode 100644 index 00000000000..efaea1cc6b2 --- /dev/null +++ b/tests/ui/traits/const-traits/reservation-impl-ice.rs @@ -0,0 +1,13 @@ +//@ compile-flags: -Znext-solver +#![feature(const_from, never_type, const_trait_impl)] + +const fn impls_from<T: ~const From<!>>() {} + +const fn foo() { + // This previously ICE'd when encountering the reservation impl + // from the standard library. + impls_from::<()>(); + //~^ ERROR the trait bound `(): From<!>` is not satisfied +} + +fn main() {} diff --git a/tests/ui/traits/const-traits/reservation-impl-ice.stderr b/tests/ui/traits/const-traits/reservation-impl-ice.stderr new file mode 100644 index 00000000000..a3fdcbac69e --- /dev/null +++ b/tests/ui/traits/const-traits/reservation-impl-ice.stderr @@ -0,0 +1,25 @@ +error[E0277]: the trait bound `(): From<!>` is not satisfied + --> $DIR/reservation-impl-ice.rs:9:18 + | +LL | impls_from::<()>(); + | ^^ the trait `From<!>` is not implemented for `()` + | + = help: the following other types implement trait `From<T>`: + `(T, T)` implements `From<[T; 2]>` + `(T, T, T)` implements `From<[T; 3]>` + `(T, T, T, T)` implements `From<[T; 4]>` + `(T, T, T, T, T)` implements `From<[T; 5]>` + `(T, T, T, T, T, T)` implements `From<[T; 6]>` + `(T, T, T, T, T, T, T)` implements `From<[T; 7]>` + `(T, T, T, T, T, T, T, T)` implements `From<[T; 8]>` + `(T, T, T, T, T, T, T, T, T)` implements `From<[T; 9]>` + and 4 others +note: required by a bound in `impls_from` + --> $DIR/reservation-impl-ice.rs:4:24 + | +LL | const fn impls_from<T: ~const From<!>>() {} + | ^^^^^^^^^^^^^^ required by this bound in `impls_from` + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/traits/default-method-fn-call-9123.rs b/tests/ui/traits/default-method-fn-call-9123.rs new file mode 100644 index 00000000000..266b95ca960 --- /dev/null +++ b/tests/ui/traits/default-method-fn-call-9123.rs @@ -0,0 +1,7 @@ +// https://github.com/rust-lang/rust/issues/9123 +//@ run-pass +//@ aux-build:aux-9123.rs + +extern crate aux_9123; + +pub fn main() {} diff --git a/tests/ui/traits/default-method/bound-subst4.stderr b/tests/ui/traits/default-method/bound-subst4.stderr index 548c46f1233..62be4c3a8fc 100644 --- a/tests/ui/traits/default-method/bound-subst4.stderr +++ b/tests/ui/traits/default-method/bound-subst4.stderr @@ -7,7 +7,7 @@ LL | fn g(&self, x: usize) -> usize { x } LL | fn h(&self, x: T) { } | ^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/traits/default_auto_traits/default-bounds.stderr b/tests/ui/traits/default_auto_traits/default-bounds.stderr index 318fc57fc9c..ae1b0e842ff 100644 --- a/tests/ui/traits/default_auto_traits/default-bounds.stderr +++ b/tests/ui/traits/default_auto_traits/default-bounds.stderr @@ -2,10 +2,15 @@ error[E0277]: the trait bound `Forbidden: SyncDrop` is not satisfied --> $DIR/default-bounds.rs:43:9 | LL | bar(Forbidden); - | --- ^^^^^^^^^ the trait `SyncDrop` is not implemented for `Forbidden` + | --- ^^^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `SyncDrop` is not implemented for `Forbidden` + --> $DIR/default-bounds.rs:32:1 + | +LL | struct Forbidden; + | ^^^^^^^^^^^^^^^^ note: required by a bound in `bar` --> $DIR/default-bounds.rs:39:8 | @@ -16,10 +21,15 @@ error[E0277]: the trait bound `Forbidden: Leak` is not satisfied --> $DIR/default-bounds.rs:43:9 | LL | bar(Forbidden); - | --- ^^^^^^^^^ the trait `Leak` is not implemented for `Forbidden` + | --- ^^^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Leak` is not implemented for `Forbidden` + --> $DIR/default-bounds.rs:32:1 + | +LL | struct Forbidden; + | ^^^^^^^^^^^^^^^^ note: required by a bound in `bar` --> $DIR/default-bounds.rs:39:11 | diff --git a/tests/ui/traits/default_auto_traits/maybe-bounds-in-dyn-traits.stderr b/tests/ui/traits/default_auto_traits/maybe-bounds-in-dyn-traits.stderr index 350233b7cbe..b19c082a1b8 100644 --- a/tests/ui/traits/default_auto_traits/maybe-bounds-in-dyn-traits.stderr +++ b/tests/ui/traits/default_auto_traits/maybe-bounds-in-dyn-traits.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `NonLeakS: Leak` is not satisfied --> $DIR/maybe-bounds-in-dyn-traits.rs:59:25 | LL | let _: &dyn Trait = &NonLeakS; - | ^^^^^^^^^ the trait `Leak` is not implemented for `NonLeakS` + | ^^^^^^^^^ unsatisfied trait bound | +help: the trait `Leak` is not implemented for `NonLeakS` + --> $DIR/maybe-bounds-in-dyn-traits.rs:46:1 + | +LL | struct NonLeakS; + | ^^^^^^^^^^^^^^^ = note: required for the cast from `&NonLeakS` to `&dyn Trait + Leak` error[E0277]: the trait bound `dyn Trait: Leak` is not satisfied diff --git a/tests/ui/traits/default_auto_traits/maybe-bounds-in-traits.stderr b/tests/ui/traits/default_auto_traits/maybe-bounds-in-traits.stderr index bc797c9d976..372bf817600 100644 --- a/tests/ui/traits/default_auto_traits/maybe-bounds-in-traits.stderr +++ b/tests/ui/traits/default_auto_traits/maybe-bounds-in-traits.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `NonLeakS: Leak` is not satisfied --> $DIR/maybe-bounds-in-traits.rs:67:22 | LL | type Leak2 = NonLeakS; - | ^^^^^^^^ the trait `Leak` is not implemented for `NonLeakS` + | ^^^^^^^^ unsatisfied trait bound | +help: the trait `Leak` is not implemented for `NonLeakS` + --> $DIR/maybe-bounds-in-traits.rs:34:1 + | +LL | struct NonLeakS; + | ^^^^^^^^^^^^^^^ note: required by a bound in `Test3::Leak2` --> $DIR/maybe-bounds-in-traits.rs:67:9 | @@ -57,8 +62,13 @@ error[E0277]: the trait bound `NonLeakS: Leak` is not satisfied --> $DIR/maybe-bounds-in-traits.rs:115:18 | LL | NonLeakS.leak_foo(); - | ^^^^^^^^ the trait `Leak` is not implemented for `NonLeakS` + | ^^^^^^^^ unsatisfied trait bound + | +help: the trait `Leak` is not implemented for `NonLeakS` + --> $DIR/maybe-bounds-in-traits.rs:34:1 | +LL | struct NonLeakS; + | ^^^^^^^^^^^^^^^ note: required by a bound in `methods::Trait::leak_foo` --> $DIR/maybe-bounds-in-traits.rs:101:9 | diff --git a/tests/ui/traits/enum-negative-send-impl.stderr b/tests/ui/traits/enum-negative-send-impl.stderr index 1992becccf4..2aad2265797 100644 --- a/tests/ui/traits/enum-negative-send-impl.stderr +++ b/tests/ui/traits/enum-negative-send-impl.stderr @@ -6,7 +6,11 @@ LL | requires_send(container); | | | required by a bound introduced by this call | - = help: within `Container`, the trait `Send` is not implemented for `NoSend` +help: within `Container`, the trait `Send` is not implemented for `NoSend` + --> $DIR/enum-negative-send-impl.rs:9:1 + | +LL | struct NoSend; + | ^^^^^^^^^^^^^ note: required because it appears within the type `Container` --> $DIR/enum-negative-send-impl.rs:12:6 | diff --git a/tests/ui/traits/enum-negative-sync-impl.stderr b/tests/ui/traits/enum-negative-sync-impl.stderr index a97b7a36a7b..b4ab69afb42 100644 --- a/tests/ui/traits/enum-negative-sync-impl.stderr +++ b/tests/ui/traits/enum-negative-sync-impl.stderr @@ -6,7 +6,11 @@ LL | requires_sync(container); | | | required by a bound introduced by this call | - = help: within `Container`, the trait `Sync` is not implemented for `NoSync` +help: within `Container`, the trait `Sync` is not implemented for `NoSync` + --> $DIR/enum-negative-sync-impl.rs:9:1 + | +LL | struct NoSync; + | ^^^^^^^^^^^^^ note: required because it appears within the type `Container` --> $DIR/enum-negative-sync-impl.rs:12:6 | diff --git a/tests/ui/traits/impl-inherent-prefer-over-trait.stderr b/tests/ui/traits/impl-inherent-prefer-over-trait.stderr index f0bb21402d8..14b3e4d903f 100644 --- a/tests/ui/traits/impl-inherent-prefer-over-trait.stderr +++ b/tests/ui/traits/impl-inherent-prefer-over-trait.stderr @@ -6,7 +6,7 @@ LL | trait Trait { LL | fn bar(&self); | ^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/traits/impl-object-overlap-issue-23853.stderr b/tests/ui/traits/impl-object-overlap-issue-23853.stderr index 9fa7a36816e..bdab0ae3532 100644 --- a/tests/ui/traits/impl-object-overlap-issue-23853.stderr +++ b/tests/ui/traits/impl-object-overlap-issue-23853.stderr @@ -6,7 +6,7 @@ LL | trait Foo { fn dummy(&self) { } } | | | method in this trait | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/traits/impl.stderr b/tests/ui/traits/impl.stderr index 9216a33c1d0..c17957f1e64 100644 --- a/tests/ui/traits/impl.stderr +++ b/tests/ui/traits/impl.stderr @@ -6,7 +6,7 @@ LL | trait T { LL | fn t(&self) {} | ^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/traits/issue-38033.stderr b/tests/ui/traits/issue-38033.stderr index 05385e8cf4d..fb713c564cf 100644 --- a/tests/ui/traits/issue-38033.stderr +++ b/tests/ui/traits/issue-38033.stderr @@ -7,7 +7,7 @@ LL | trait IntoFuture { LL | fn into_future(self) -> Self::Future; | ^^^^^^^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/traits/issue-6128.stderr b/tests/ui/traits/issue-6128.stderr index c9518ea41ea..1c0460df69e 100644 --- a/tests/ui/traits/issue-6128.stderr +++ b/tests/ui/traits/issue-6128.stderr @@ -8,7 +8,7 @@ LL | fn f(&self, _: Edge); LL | fn g(&self, _: Node); | ^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/traits/issue-87558.stderr b/tests/ui/traits/issue-87558.stderr index dc5bd6ece36..ca908a3062d 100644 --- a/tests/ui/traits/issue-87558.stderr +++ b/tests/ui/traits/issue-87558.stderr @@ -38,7 +38,11 @@ error[E0277]: expected a `FnMut(&isize)` closure, found `Error` LL | impl Fn(&isize) for Error { | ^^^^^ expected an `FnMut(&isize)` closure, found `Error` | - = help: the trait `FnMut(&isize)` is not implemented for `Error` +help: the trait `FnMut(&isize)` is not implemented for `Error` + --> $DIR/issue-87558.rs:2:1 + | +LL | struct Error(ErrorKind); + | ^^^^^^^^^^^^ note: required by a bound in `Fn` --> $SRC_DIR/core/src/ops/function.rs:LL:COL diff --git a/tests/ui/traits/issue-91594.stderr b/tests/ui/traits/issue-91594.stderr index 13568179e81..04abd02aac4 100644 --- a/tests/ui/traits/issue-91594.stderr +++ b/tests/ui/traits/issue-91594.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `Foo: HasComponent<()>` is not satisfied --> $DIR/issue-91594.rs:10:19 | LL | impl HasComponent<<Foo as Component<Foo>>::Interface> for Foo {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `HasComponent<()>` is not implemented for `Foo` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | +help: the trait `HasComponent<()>` is not implemented for `Foo` + --> $DIR/issue-91594.rs:8:1 + | +LL | struct Foo; + | ^^^^^^^^^^ = help: the trait `HasComponent<<Foo as Component<Foo>>::Interface>` is implemented for `Foo` note: required for `Foo` to implement `Component<Foo>` --> $DIR/issue-91594.rs:13:27 diff --git a/tests/ui/traits/missing-for-type-in-impl.e2015.stderr b/tests/ui/traits/missing-for-type-in-impl.e2015.stderr index a0bfc524252..40ebf8f36af 100644 --- a/tests/ui/traits/missing-for-type-in-impl.e2015.stderr +++ b/tests/ui/traits/missing-for-type-in-impl.e2015.stderr @@ -6,7 +6,7 @@ LL | impl Foo<i64> { | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | impl dyn Foo<i64> { diff --git a/tests/ui/traits/multidispatch-conditional-impl-not-considered.stderr b/tests/ui/traits/multidispatch-conditional-impl-not-considered.stderr index 25313a477f7..8a9c2206331 100644 --- a/tests/ui/traits/multidispatch-conditional-impl-not-considered.stderr +++ b/tests/ui/traits/multidispatch-conditional-impl-not-considered.stderr @@ -4,7 +4,7 @@ warning: trait `Foo` is never used LL | trait Foo { | ^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/traits/multidispatch-infer-convert-target.stderr b/tests/ui/traits/multidispatch-infer-convert-target.stderr index c8c1b642719..fbf57e9327f 100644 --- a/tests/ui/traits/multidispatch-infer-convert-target.stderr +++ b/tests/ui/traits/multidispatch-infer-convert-target.stderr @@ -6,7 +6,7 @@ LL | trait Convert<Target> { LL | fn convert(&self) -> Target; | ^^^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/issues/issue-8249.rs b/tests/ui/traits/mut-trait-in-struct-8249.rs index 2364fc14d31..b6dcd848b8b 100644 --- a/tests/ui/issues/issue-8249.rs +++ b/tests/ui/traits/mut-trait-in-struct-8249.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/8249 //@ run-pass #![allow(dead_code)] diff --git a/tests/ui/traits/negative-bounds/negative-metasized.current.stderr b/tests/ui/traits/negative-bounds/negative-metasized.current.stderr new file mode 100644 index 00000000000..4ff51651336 --- /dev/null +++ b/tests/ui/traits/negative-bounds/negative-metasized.current.stderr @@ -0,0 +1,39 @@ +error[E0277]: the trait bound `T: !MetaSized` is not satisfied + --> $DIR/negative-metasized.rs:12:11 + | +LL | foo::<T>(); + | ^ the trait bound `T: !MetaSized` is not satisfied + | +note: required by a bound in `foo` + --> $DIR/negative-metasized.rs:9:11 + | +LL | fn foo<T: !MetaSized>() {} + | ^^^^^^^^^^ required by this bound in `foo` + +error[E0277]: the trait bound `(): !MetaSized` is not satisfied + --> $DIR/negative-metasized.rs:17:11 + | +LL | foo::<()>(); + | ^^ the trait bound `(): !MetaSized` is not satisfied + | +note: required by a bound in `foo` + --> $DIR/negative-metasized.rs:9:11 + | +LL | fn foo<T: !MetaSized>() {} + | ^^^^^^^^^^ required by this bound in `foo` + +error[E0277]: the trait bound `str: !MetaSized` is not satisfied + --> $DIR/negative-metasized.rs:19:11 + | +LL | foo::<str>(); + | ^^^ the trait bound `str: !MetaSized` is not satisfied + | +note: required by a bound in `foo` + --> $DIR/negative-metasized.rs:9:11 + | +LL | fn foo<T: !MetaSized>() {} + | ^^^^^^^^^^ required by this bound in `foo` + +error: aborting due to 3 previous errors + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/traits/negative-bounds/negative-metasized.next.stderr b/tests/ui/traits/negative-bounds/negative-metasized.next.stderr new file mode 100644 index 00000000000..4ff51651336 --- /dev/null +++ b/tests/ui/traits/negative-bounds/negative-metasized.next.stderr @@ -0,0 +1,39 @@ +error[E0277]: the trait bound `T: !MetaSized` is not satisfied + --> $DIR/negative-metasized.rs:12:11 + | +LL | foo::<T>(); + | ^ the trait bound `T: !MetaSized` is not satisfied + | +note: required by a bound in `foo` + --> $DIR/negative-metasized.rs:9:11 + | +LL | fn foo<T: !MetaSized>() {} + | ^^^^^^^^^^ required by this bound in `foo` + +error[E0277]: the trait bound `(): !MetaSized` is not satisfied + --> $DIR/negative-metasized.rs:17:11 + | +LL | foo::<()>(); + | ^^ the trait bound `(): !MetaSized` is not satisfied + | +note: required by a bound in `foo` + --> $DIR/negative-metasized.rs:9:11 + | +LL | fn foo<T: !MetaSized>() {} + | ^^^^^^^^^^ required by this bound in `foo` + +error[E0277]: the trait bound `str: !MetaSized` is not satisfied + --> $DIR/negative-metasized.rs:19:11 + | +LL | foo::<str>(); + | ^^^ the trait bound `str: !MetaSized` is not satisfied + | +note: required by a bound in `foo` + --> $DIR/negative-metasized.rs:9:11 + | +LL | fn foo<T: !MetaSized>() {} + | ^^^^^^^^^^ required by this bound in `foo` + +error: aborting due to 3 previous errors + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/traits/negative-bounds/negative-metasized.rs b/tests/ui/traits/negative-bounds/negative-metasized.rs new file mode 100644 index 00000000000..479037be852 --- /dev/null +++ b/tests/ui/traits/negative-bounds/negative-metasized.rs @@ -0,0 +1,21 @@ +//@ revisions: current next +//@ ignore-compare-mode-next-solver (explicit revisions) +//@[next] compile-flags: -Znext-solver +#![feature(negative_bounds)] +#![feature(sized_hierarchy)] + +use std::marker::MetaSized; + +fn foo<T: !MetaSized>() {} + +fn bar<T: !Sized + MetaSized>() { + foo::<T>(); + //~^ ERROR the trait bound `T: !MetaSized` is not satisfied +} + +fn main() { + foo::<()>(); + //~^ ERROR the trait bound `(): !MetaSized` is not satisfied + foo::<str>(); + //~^ ERROR the trait bound `str: !MetaSized` is not satisfied +} diff --git a/tests/ui/traits/negative-bounds/on-unimplemented.stderr b/tests/ui/traits/negative-bounds/on-unimplemented.stderr index 8a295611010..008ff865018 100644 --- a/tests/ui/traits/negative-bounds/on-unimplemented.stderr +++ b/tests/ui/traits/negative-bounds/on-unimplemented.stderr @@ -2,10 +2,16 @@ error[E0277]: the trait bound `NotFoo: !Foo` is not satisfied --> $DIR/on-unimplemented.rs:9:15 | LL | fn hello() -> impl !Foo { - | ^^^^^^^^^ the trait bound `NotFoo: !Foo` is not satisfied + | ^^^^^^^^^ unsatisfied trait bound LL | LL | NotFoo | ------ return type was inferred to be `NotFoo` here + | +help: the trait bound `NotFoo: !Foo` is not satisfied + --> $DIR/on-unimplemented.rs:7:1 + | +LL | struct NotFoo; + | ^^^^^^^^^^^^^ error: aborting due to 1 previous error diff --git a/tests/ui/traits/negative-bounds/simple.stderr b/tests/ui/traits/negative-bounds/simple.stderr index 499c19bb854..5b204c47d9c 100644 --- a/tests/ui/traits/negative-bounds/simple.stderr +++ b/tests/ui/traits/negative-bounds/simple.stderr @@ -26,8 +26,13 @@ error[E0277]: the trait bound `Copyable: !Copy` is not satisfied --> $DIR/simple.rs:30:16 | LL | not_copy::<Copyable>(); - | ^^^^^^^^ the trait bound `Copyable: !Copy` is not satisfied + | ^^^^^^^^ unsatisfied trait bound | +help: the trait bound `Copyable: !Copy` is not satisfied + --> $DIR/simple.rs:27:1 + | +LL | struct Copyable; + | ^^^^^^^^^^^^^^^ note: required by a bound in `not_copy` --> $DIR/simple.rs:3:16 | @@ -38,8 +43,13 @@ error[E0277]: the trait bound `NotNecessarilyCopyable: !Copy` is not satisfied --> $DIR/simple.rs:37:16 | LL | not_copy::<NotNecessarilyCopyable>(); - | ^^^^^^^^^^^^^^^^^^^^^^ the trait bound `NotNecessarilyCopyable: !Copy` is not satisfied + | ^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound + | +help: the trait bound `NotNecessarilyCopyable: !Copy` is not satisfied + --> $DIR/simple.rs:34:1 | +LL | struct NotNecessarilyCopyable; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: required by a bound in `not_copy` --> $DIR/simple.rs:3:16 | diff --git a/tests/ui/traits/negative-impls/negated-auto-traits-error.stderr b/tests/ui/traits/negative-impls/negated-auto-traits-error.stderr index 8f5b937e586..f450f786f60 100644 --- a/tests/ui/traits/negative-impls/negated-auto-traits-error.stderr +++ b/tests/ui/traits/negative-impls/negated-auto-traits-error.stderr @@ -6,7 +6,11 @@ LL | Outer(TestType); | | | required by a bound introduced by this call | - = help: the trait `Send` is not implemented for `dummy::TestType` +help: the trait `Send` is not implemented for `dummy::TestType` + --> $DIR/negated-auto-traits-error.rs:20:5 + | +LL | struct TestType; + | ^^^^^^^^^^^^^^^ note: required by a bound in `Outer` --> $DIR/negated-auto-traits-error.rs:10:17 | @@ -19,7 +23,11 @@ error[E0277]: `dummy::TestType` cannot be sent between threads safely LL | Outer(TestType); | ^^^^^^^^^^^^^^^ `dummy::TestType` cannot be sent between threads safely | - = help: the trait `Send` is not implemented for `dummy::TestType` +help: the trait `Send` is not implemented for `dummy::TestType` + --> $DIR/negated-auto-traits-error.rs:20:5 + | +LL | struct TestType; + | ^^^^^^^^^^^^^^^ note: required by a bound in `Outer` --> $DIR/negated-auto-traits-error.rs:10:17 | @@ -34,7 +42,11 @@ LL | is_send(TestType); | | | required by a bound introduced by this call | - = help: the trait `Send` is not implemented for `dummy1b::TestType` +help: the trait `Send` is not implemented for `dummy1b::TestType` + --> $DIR/negated-auto-traits-error.rs:29:5 + | +LL | struct TestType; + | ^^^^^^^^^^^^^^^ note: required by a bound in `is_send` --> $DIR/negated-auto-traits-error.rs:16:15 | @@ -49,7 +61,11 @@ LL | is_send((8, TestType)); | | | required by a bound introduced by this call | - = help: within `({integer}, dummy1c::TestType)`, the trait `Send` is not implemented for `dummy1c::TestType` +help: within `({integer}, dummy1c::TestType)`, the trait `Send` is not implemented for `dummy1c::TestType` + --> $DIR/negated-auto-traits-error.rs:37:5 + | +LL | struct TestType; + | ^^^^^^^^^^^^^^^ = note: required because it appears within the type `({integer}, dummy1c::TestType)` note: required by a bound in `is_send` --> $DIR/negated-auto-traits-error.rs:16:15 @@ -87,7 +103,11 @@ LL | is_send(Box::new(Outer2(TestType))); | | | required by a bound introduced by this call | - = help: within `Outer2<dummy3::TestType>`, the trait `Send` is not implemented for `dummy3::TestType` +help: within `Outer2<dummy3::TestType>`, the trait `Send` is not implemented for `dummy3::TestType` + --> $DIR/negated-auto-traits-error.rs:53:5 + | +LL | struct TestType; + | ^^^^^^^^^^^^^^^ note: required because it appears within the type `Outer2<dummy3::TestType>` --> $DIR/negated-auto-traits-error.rs:12:8 | @@ -110,7 +130,11 @@ LL | is_sync(Outer2(TestType)); | | | required by a bound introduced by this call | - = help: the trait `Send` is not implemented for `main::TestType` +help: the trait `Send` is not implemented for `main::TestType` + --> $DIR/negated-auto-traits-error.rs:61:5 + | +LL | struct TestType; + | ^^^^^^^^^^^^^^^ note: required for `Outer2<main::TestType>` to implement `Sync` --> $DIR/negated-auto-traits-error.rs:14:22 | diff --git a/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-2.next.stderr b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-2.next.stderr index 3b478889996..e75be1e8137 100644 --- a/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-2.next.stderr +++ b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-2.next.stderr @@ -1,10 +1,10 @@ -error[E0283]: type annotations needed: cannot satisfy `impl Trait<'x> + Trait<'y>: Trait<'y>` - --> $DIR/ambiguity-due-to-uniquification-2.rs:16:23 +error[E0283]: type annotations needed: cannot satisfy `impl Trait<'_> + Trait<'_>: Trait<'_>` + --> $DIR/ambiguity-due-to-uniquification-2.rs:16:5 | LL | impls_trait::<'y, _>(foo::<'x, 'y>()); - | ^ + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = note: cannot satisfy `impl Trait<'x> + Trait<'y>: Trait<'y>` + = note: cannot satisfy `impl Trait<'_> + Trait<'_>: Trait<'_>` = help: the trait `Trait<'t>` is implemented for `()` note: required by a bound in `impls_trait` --> $DIR/ambiguity-due-to-uniquification-2.rs:13:23 diff --git a/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-2.rs b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-2.rs index 2a9a8b80cc0..30df70396f4 100644 --- a/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-2.rs +++ b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-2.rs @@ -14,7 +14,7 @@ fn impls_trait<'x, T: Trait<'x>>(_: T) {} fn bar<'x, 'y>() { impls_trait::<'y, _>(foo::<'x, 'y>()); - //[next]~^ ERROR type annotations needed: cannot satisfy `impl Trait<'x> + Trait<'y>: Trait<'y>` + //[next]~^ ERROR type annotations needed: cannot satisfy `impl Trait<'_> + Trait<'_>: Trait<'_>` } fn main() {} diff --git a/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-3.next.stderr b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-3.next.stderr index e25f892b365..7fa89054931 100644 --- a/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-3.next.stderr +++ b/tests/ui/traits/next-solver/assembly/ambiguity-due-to-uniquification-3.next.stderr @@ -1,12 +1,10 @@ -error[E0283]: type annotations needed: cannot satisfy `(dyn Object<&(), &()> + 'static): Trait<&()>` - --> $DIR/ambiguity-due-to-uniquification-3.rs:28:17 +error[E0283]: type annotations needed: cannot satisfy `dyn Object<&(), &()>: Trait<&()>` + --> $DIR/ambiguity-due-to-uniquification-3.rs:28:5 | LL | impls_trait(obj, t); - | ----------- ^^^ - | | - | required by a bound introduced by this call + | ^^^^^^^^^^^^^^^^^^^ | - = note: cannot satisfy `(dyn Object<&(), &()> + 'static): Trait<&()>` + = note: cannot satisfy `dyn Object<&(), &()>: Trait<&()>` = help: the trait `Trait<T>` is implemented for `()` note: required by a bound in `impls_trait` --> $DIR/ambiguity-due-to-uniquification-3.rs:24:19 diff --git a/tests/ui/traits/next-solver/auto-with-drop_tracking_mir.fail.stderr b/tests/ui/traits/next-solver/auto-with-drop_tracking_mir.fail.stderr index 55f52181ec9..0375e64ac66 100644 --- a/tests/ui/traits/next-solver/auto-with-drop_tracking_mir.fail.stderr +++ b/tests/ui/traits/next-solver/auto-with-drop_tracking_mir.fail.stderr @@ -4,7 +4,11 @@ error: future cannot be sent between threads safely LL | is_send(foo()); | ^^^^^ future returned by `foo` is not `Send` | - = help: the trait `Sync` is not implemented for `NotSync` +help: the trait `Sync` is not implemented for `NotSync` + --> $DIR/auto-with-drop_tracking_mir.rs:8:1 + | +LL | struct NotSync; + | ^^^^^^^^^^^^^^ note: future is not `Send` as this value is used across an await --> $DIR/auto-with-drop_tracking_mir.rs:16:11 | diff --git a/tests/ui/traits/next-solver/cycles/coinduction/incompleteness-unstable-result.with.stderr b/tests/ui/traits/next-solver/cycles/coinduction/incompleteness-unstable-result.with.stderr index d27104de541..8cad9408810 100644 --- a/tests/ui/traits/next-solver/cycles/coinduction/incompleteness-unstable-result.with.stderr +++ b/tests/ui/traits/next-solver/cycles/coinduction/incompleteness-unstable-result.with.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `A<X>: Trait<_, _, _>` is not satisfied --> $DIR/incompleteness-unstable-result.rs:66:19 | LL | impls_trait::<A<X>, _, _, _>(); - | ^^^^ the trait `Trait<_, _, _>` is not implemented for `A<X>` + | ^^^^ unsatisfied trait bound | +help: the trait `Trait<_, _, _>` is not implemented for `A<X>` + --> $DIR/incompleteness-unstable-result.rs:22:1 + | +LL | struct A<T>(*const T); + | ^^^^^^^^^^^ = help: the trait `Trait<U, V, D>` is implemented for `A<T>` note: required for `A<X>` to implement `Trait<_, _, _>` --> $DIR/incompleteness-unstable-result.rs:34:18 diff --git a/tests/ui/traits/next-solver/cycles/coinduction/incompleteness-unstable-result.without.stderr b/tests/ui/traits/next-solver/cycles/coinduction/incompleteness-unstable-result.without.stderr index d27104de541..8cad9408810 100644 --- a/tests/ui/traits/next-solver/cycles/coinduction/incompleteness-unstable-result.without.stderr +++ b/tests/ui/traits/next-solver/cycles/coinduction/incompleteness-unstable-result.without.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `A<X>: Trait<_, _, _>` is not satisfied --> $DIR/incompleteness-unstable-result.rs:66:19 | LL | impls_trait::<A<X>, _, _, _>(); - | ^^^^ the trait `Trait<_, _, _>` is not implemented for `A<X>` + | ^^^^ unsatisfied trait bound | +help: the trait `Trait<_, _, _>` is not implemented for `A<X>` + --> $DIR/incompleteness-unstable-result.rs:22:1 + | +LL | struct A<T>(*const T); + | ^^^^^^^^^^^ = help: the trait `Trait<U, V, D>` is implemented for `A<T>` note: required for `A<X>` to implement `Trait<_, _, _>` --> $DIR/incompleteness-unstable-result.rs:34:18 diff --git a/tests/ui/traits/next-solver/cycles/inductive-cycle-but-err.stderr b/tests/ui/traits/next-solver/cycles/inductive-cycle-but-err.stderr index 7895a263634..12a26a1bf60 100644 --- a/tests/ui/traits/next-solver/cycles/inductive-cycle-but-err.stderr +++ b/tests/ui/traits/next-solver/cycles/inductive-cycle-but-err.stderr @@ -14,8 +14,13 @@ error[E0277]: the trait bound `MultipleCandidates: Trait` is not satisfied --> $DIR/inductive-cycle-but-err.rs:54:19 | LL | impls_trait::<MultipleCandidates>(); - | ^^^^^^^^^^^^^^^^^^ the trait `Trait` is not implemented for `MultipleCandidates` + | ^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | +help: the trait `Trait` is not implemented for `MultipleCandidates` + --> $DIR/inductive-cycle-but-err.rs:18:1 + | +LL | struct MultipleCandidates; + | ^^^^^^^^^^^^^^^^^^^^^^^^^ = help: the trait `Trait` is implemented for `MultipleCandidates` note: required by a bound in `impls_trait` --> $DIR/inductive-cycle-but-err.rs:51:19 diff --git a/tests/ui/traits/next-solver/cycles/normalizes-to-is-not-productive.stderr b/tests/ui/traits/next-solver/cycles/normalizes-to-is-not-productive.stderr index 8901805a20f..4934d8bf6fa 100644 --- a/tests/ui/traits/next-solver/cycles/normalizes-to-is-not-productive.stderr +++ b/tests/ui/traits/next-solver/cycles/normalizes-to-is-not-productive.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `Foo: Bound` is not satisfied --> $DIR/normalizes-to-is-not-productive.rs:42:31 | LL | <Foo as Trait<T>>::Assoc: Bound, - | ^^^^^ the trait `Bound` is not implemented for `Foo` + | ^^^^^ unsatisfied trait bound | +help: the trait `Bound` is not implemented for `Foo` + --> $DIR/normalizes-to-is-not-productive.rs:18:1 + | +LL | struct Foo; + | ^^^^^^^^^^ = help: the trait `Bound` is implemented for `u32` note: required for `Foo` to implement `Trait<T>` --> $DIR/normalizes-to-is-not-productive.rs:23:19 @@ -17,8 +22,13 @@ error[E0277]: the trait bound `Foo: Bound` is not satisfied --> $DIR/normalizes-to-is-not-productive.rs:47:19 | LL | impls_bound::<Foo>(); - | ^^^ the trait `Bound` is not implemented for `Foo` + | ^^^ unsatisfied trait bound + | +help: the trait `Bound` is not implemented for `Foo` + --> $DIR/normalizes-to-is-not-productive.rs:18:1 | +LL | struct Foo; + | ^^^^^^^^^^ = help: the trait `Bound` is implemented for `u32` note: required by a bound in `impls_bound` --> $DIR/normalizes-to-is-not-productive.rs:27:19 diff --git a/tests/ui/traits/next-solver/diagnostics/dont-pick-fnptr-bound-as-leaf.current.stderr b/tests/ui/traits/next-solver/diagnostics/dont-pick-fnptr-bound-as-leaf.current.stderr index a863886181c..6aa02879e7d 100644 --- a/tests/ui/traits/next-solver/diagnostics/dont-pick-fnptr-bound-as-leaf.current.stderr +++ b/tests/ui/traits/next-solver/diagnostics/dont-pick-fnptr-bound-as-leaf.current.stderr @@ -2,10 +2,15 @@ error[E0277]: the trait bound `Foo: Trait` is not satisfied --> $DIR/dont-pick-fnptr-bound-as-leaf.rs:24:20 | LL | requires_trait(Foo); - | -------------- ^^^ the trait `Trait` is not implemented for `Foo` + | -------------- ^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Trait` is not implemented for `Foo` + --> $DIR/dont-pick-fnptr-bound-as-leaf.rs:17:1 + | +LL | struct Foo; + | ^^^^^^^^^^ note: required by a bound in `requires_trait` --> $DIR/dont-pick-fnptr-bound-as-leaf.rs:19:22 | diff --git a/tests/ui/traits/next-solver/diagnostics/dont-pick-fnptr-bound-as-leaf.next.stderr b/tests/ui/traits/next-solver/diagnostics/dont-pick-fnptr-bound-as-leaf.next.stderr index a863886181c..6aa02879e7d 100644 --- a/tests/ui/traits/next-solver/diagnostics/dont-pick-fnptr-bound-as-leaf.next.stderr +++ b/tests/ui/traits/next-solver/diagnostics/dont-pick-fnptr-bound-as-leaf.next.stderr @@ -2,10 +2,15 @@ error[E0277]: the trait bound `Foo: Trait` is not satisfied --> $DIR/dont-pick-fnptr-bound-as-leaf.rs:24:20 | LL | requires_trait(Foo); - | -------------- ^^^ the trait `Trait` is not implemented for `Foo` + | -------------- ^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Trait` is not implemented for `Foo` + --> $DIR/dont-pick-fnptr-bound-as-leaf.rs:17:1 + | +LL | struct Foo; + | ^^^^^^^^^^ note: required by a bound in `requires_trait` --> $DIR/dont-pick-fnptr-bound-as-leaf.rs:19:22 | diff --git a/tests/ui/traits/next-solver/diagnostics/dont-pick-fnptr-bound-as-leaf.rs b/tests/ui/traits/next-solver/diagnostics/dont-pick-fnptr-bound-as-leaf.rs index 995f2c9fbee..0da7bb17a58 100644 --- a/tests/ui/traits/next-solver/diagnostics/dont-pick-fnptr-bound-as-leaf.rs +++ b/tests/ui/traits/next-solver/diagnostics/dont-pick-fnptr-bound-as-leaf.rs @@ -14,7 +14,7 @@ trait Trait {} impl<T: FnPtr> Trait for T {} -struct Foo; +struct Foo; //~ HELP: the trait `Trait` is not implemented for `Foo` fn requires_trait<T: Trait>(_: T) {} //~^ NOTE: required by a bound in `requires_trait` @@ -23,6 +23,6 @@ fn requires_trait<T: Trait>(_: T) {} fn main() { requires_trait(Foo); //~^ ERROR: the trait bound `Foo: Trait` is not satisfied - //~| NOTE: the trait `Trait` is not implemented for `Foo` + //~| NOTE: unsatisfied trait bound //~| NOTE: required by a bound introduced by this call } diff --git a/tests/ui/traits/next-solver/opaques/different-bound-vars.current.stderr b/tests/ui/traits/next-solver/opaques/different-bound-vars.current.stderr new file mode 100644 index 00000000000..32e92e46a88 --- /dev/null +++ b/tests/ui/traits/next-solver/opaques/different-bound-vars.current.stderr @@ -0,0 +1,14 @@ +error: concrete type differs from previous defining opaque type use + --> $DIR/different-bound-vars.rs:13:37 + | +LL | let _: for<'b> fn(&'b ()) = foo::<U, T>(false); + | ^^^^^^^^^^^^^^^^^^ expected `for<'a> fn(&'a ())`, got `for<'b> fn(&'b ())` + | +note: previous use here + --> $DIR/different-bound-vars.rs:12:37 + | +LL | let _: for<'a> fn(&'a ()) = foo::<T, U>(false); + | ^^^^^^^^^^^^^^^^^^ + +error: aborting due to 1 previous error + diff --git a/tests/ui/traits/next-solver/opaques/different-bound-vars.rs b/tests/ui/traits/next-solver/opaques/different-bound-vars.rs new file mode 100644 index 00000000000..5801a5edeb4 --- /dev/null +++ b/tests/ui/traits/next-solver/opaques/different-bound-vars.rs @@ -0,0 +1,20 @@ +// Check whether we support defining uses with different bound vars. +// This needs to handle both mismatches for the same opaque type storage +// entry, but also between different entries. + +//@ revisions: current next +//@ ignore-compare-mode-next-solver (explicit revisions) +//@[next] compile-flags: -Znext-solver +//@[next] check-pass + +fn foo<T, U>(b: bool) -> impl Sized { + if b { + let _: for<'a> fn(&'a ()) = foo::<T, U>(false); + let _: for<'b> fn(&'b ()) = foo::<U, T>(false); + //[current]~^ ERROR concrete type differs from previous defining opaque type use + } + + (|&()| ()) as for<'c> fn(&'c ()) +} + +fn main() {} diff --git a/tests/ui/traits/next-solver/opaques/dont-type_of-tait-in-defining-scope.is_send.stderr b/tests/ui/traits/next-solver/opaques/dont-type_of-tait-in-defining-scope.is_send.stderr index 6d2bbd8b08b..a188629a475 100644 --- a/tests/ui/traits/next-solver/opaques/dont-type_of-tait-in-defining-scope.is_send.stderr +++ b/tests/ui/traits/next-solver/opaques/dont-type_of-tait-in-defining-scope.is_send.stderr @@ -1,16 +1,9 @@ -error[E0283]: type annotations needed: cannot satisfy `Foo: Send` - --> $DIR/dont-type_of-tait-in-defining-scope.rs:16:18 +error[E0282]: type annotations needed + --> $DIR/dont-type_of-tait-in-defining-scope.rs:15:12 | -LL | needs_send::<Foo>(); - | ^^^ - | - = note: cannot satisfy `Foo: Send` -note: required by a bound in `needs_send` - --> $DIR/dont-type_of-tait-in-defining-scope.rs:12:18 - | -LL | fn needs_send<T: Send>() {} - | ^^^^ required by this bound in `needs_send` +LL | fn test(_: Foo) { + | ^^^ cannot infer type error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0283`. +For more information about this error, try `rustc --explain E0282`. diff --git a/tests/ui/traits/next-solver/opaques/dont-type_of-tait-in-defining-scope.not_send.stderr b/tests/ui/traits/next-solver/opaques/dont-type_of-tait-in-defining-scope.not_send.stderr index 6d2bbd8b08b..a188629a475 100644 --- a/tests/ui/traits/next-solver/opaques/dont-type_of-tait-in-defining-scope.not_send.stderr +++ b/tests/ui/traits/next-solver/opaques/dont-type_of-tait-in-defining-scope.not_send.stderr @@ -1,16 +1,9 @@ -error[E0283]: type annotations needed: cannot satisfy `Foo: Send` - --> $DIR/dont-type_of-tait-in-defining-scope.rs:16:18 +error[E0282]: type annotations needed + --> $DIR/dont-type_of-tait-in-defining-scope.rs:15:12 | -LL | needs_send::<Foo>(); - | ^^^ - | - = note: cannot satisfy `Foo: Send` -note: required by a bound in `needs_send` - --> $DIR/dont-type_of-tait-in-defining-scope.rs:12:18 - | -LL | fn needs_send<T: Send>() {} - | ^^^^ required by this bound in `needs_send` +LL | fn test(_: Foo) { + | ^^^ cannot infer type error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0283`. +For more information about this error, try `rustc --explain E0282`. diff --git a/tests/ui/traits/next-solver/opaques/dont-type_of-tait-in-defining-scope.rs b/tests/ui/traits/next-solver/opaques/dont-type_of-tait-in-defining-scope.rs index fddf892e1ef..8ff99d32f06 100644 --- a/tests/ui/traits/next-solver/opaques/dont-type_of-tait-in-defining-scope.rs +++ b/tests/ui/traits/next-solver/opaques/dont-type_of-tait-in-defining-scope.rs @@ -13,8 +13,8 @@ fn needs_send<T: Send>() {} #[define_opaque(Foo)] fn test(_: Foo) { - needs_send::<Foo>(); //~^ ERROR type annotations needed + needs_send::<Foo>(); } #[define_opaque(Foo)] diff --git a/tests/ui/traits/next-solver/opaques/non-defining-use-hir-typeck.rs b/tests/ui/traits/next-solver/opaques/non-defining-use-hir-typeck.rs new file mode 100644 index 00000000000..a55be5fde9e --- /dev/null +++ b/tests/ui/traits/next-solver/opaques/non-defining-use-hir-typeck.rs @@ -0,0 +1,28 @@ +//@ ignore-compare-mode-next-solver +//@ compile-flags: -Znext-solver +//@ check-pass +#![feature(type_alias_impl_trait)] + +// Make sure that we support non-defining uses in HIR typeck. +// Regression test for trait-system-refactor-initiative#135. + +fn non_defining_recurse<T>(b: bool) -> impl Sized { + if b { + // This results in an opaque type use `opaque<()> = ?unconstrained` + // during HIR typeck. + non_defining_recurse::<()>(false); + } +} + +trait Eq<T, U> {} +impl<T> Eq<T, T> for () {} +fn is_eq<T: Eq<U, V>, U, V>() {} +type Tait<T> = impl Sized; +#[define_opaque(Tait)] +fn non_defining_explicit<T>() { + is_eq::<(), Tait<_>, u32>(); // constrains opaque type args via hidden type + is_eq::<(), Tait<u64>, _>(); // constraints hidden type via args + is_eq::<(), Tait<T>, T>(); // actually defines +} + +fn main() {} diff --git a/tests/ui/traits/next-solver/opaques/universal-args-non-defining.rs b/tests/ui/traits/next-solver/opaques/universal-args-non-defining.rs new file mode 100644 index 00000000000..5e7e9738616 --- /dev/null +++ b/tests/ui/traits/next-solver/opaques/universal-args-non-defining.rs @@ -0,0 +1,16 @@ +//@ check-pass +//@ revisions: current next +//@ ignore-compare-mode-next-solver (explicit revisions) +//@[next] compile-flags: -Znext-solver + +// The recursive call to `foo` results in the opaque type use `opaque<U, T> = ?unconstrained`. +// This needs to be supported and treated as a revealing use. + +fn foo<T, U>(b: bool) -> impl Sized { + if b { + foo::<U, T>(b); + } + 1u16 +} + +fn main() {} diff --git a/tests/ui/traits/no_send-struct.stderr b/tests/ui/traits/no_send-struct.stderr index fb7f26bb766..6b4a011280e 100644 --- a/tests/ui/traits/no_send-struct.stderr +++ b/tests/ui/traits/no_send-struct.stderr @@ -6,7 +6,11 @@ LL | bar(x); | | | required by a bound introduced by this call | - = help: the trait `Send` is not implemented for `Foo` +help: the trait `Send` is not implemented for `Foo` + --> $DIR/no_send-struct.rs:5:1 + | +LL | struct Foo { + | ^^^^^^^^^^ note: required by a bound in `bar` --> $DIR/no_send-struct.rs:11:11 | diff --git a/tests/ui/issues/issue-7673-cast-generically-implemented-trait.rs b/tests/ui/traits/polymorphic-trait-creation-7673.rs index edba3284e31..643818ffe1e 100644 --- a/tests/ui/issues/issue-7673-cast-generically-implemented-trait.rs +++ b/tests/ui/traits/polymorphic-trait-creation-7673.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/7673 //@ check-pass #![allow(dead_code)] diff --git a/tests/ui/issues/issue-8171-default-method-self-inherit-builtin-trait.rs b/tests/ui/traits/self-implements-kinds-in-default-methods-8171.rs index 6a03404cdca..59ea62c7690 100644 --- a/tests/ui/issues/issue-8171-default-method-self-inherit-builtin-trait.rs +++ b/tests/ui/traits/self-implements-kinds-in-default-methods-8171.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/8171 //@ check-pass #![allow(dead_code)] diff --git a/tests/ui/traits/struct-negative-sync-impl.stderr b/tests/ui/traits/struct-negative-sync-impl.stderr index c5fd13f42e5..cfb74d54ea3 100644 --- a/tests/ui/traits/struct-negative-sync-impl.stderr +++ b/tests/ui/traits/struct-negative-sync-impl.stderr @@ -6,7 +6,11 @@ LL | requires_sync(not_sync); | | | required by a bound introduced by this call | - = help: the trait `Sync` is not implemented for `NotSync` +help: the trait `Sync` is not implemented for `NotSync` + --> $DIR/struct-negative-sync-impl.rs:9:1 + | +LL | struct NotSync { + | ^^^^^^^^^^^^^^ note: required by a bound in `requires_sync` --> $DIR/struct-negative-sync-impl.rs:15:21 | diff --git a/tests/ui/traits/suggest-dereferences/deref-argument.stderr b/tests/ui/traits/suggest-dereferences/deref-argument.stderr index 3dc92fd6ab6..fd57e1f37c3 100644 --- a/tests/ui/traits/suggest-dereferences/deref-argument.stderr +++ b/tests/ui/traits/suggest-dereferences/deref-argument.stderr @@ -2,10 +2,15 @@ error[E0277]: the trait bound `MyRef: Test` is not satisfied --> $DIR/deref-argument.rs:29:18 | LL | consume_test(my_ref); - | ------------ ^^^^^^ the trait `Test` is not implemented for `MyRef` + | ------------ ^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `Test` is not implemented for `MyRef` + --> $DIR/deref-argument.rs:14:1 + | +LL | struct MyRef(u32); + | ^^^^^^^^^^^^ note: required by a bound in `consume_test` --> $DIR/deref-argument.rs:9:25 | diff --git a/tests/ui/traits/suggest-dereferences/issue-39029.stderr b/tests/ui/traits/suggest-dereferences/issue-39029.stderr index fd45fa3cf74..279d616c264 100644 --- a/tests/ui/traits/suggest-dereferences/issue-39029.stderr +++ b/tests/ui/traits/suggest-dereferences/issue-39029.stderr @@ -2,10 +2,15 @@ error[E0277]: the trait bound `NoToSocketAddrs: ToSocketAddrs` is not satisfied --> $DIR/issue-39029.rs:16:38 | LL | let _errors = TcpListener::bind(&bad); - | ----------------- ^^^ the trait `ToSocketAddrs` is not implemented for `NoToSocketAddrs` + | ----------------- ^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `ToSocketAddrs` is not implemented for `NoToSocketAddrs` + --> $DIR/issue-39029.rs:4:1 + | +LL | struct NoToSocketAddrs(String); + | ^^^^^^^^^^^^^^^^^^^^^^ = note: required for `&NoToSocketAddrs` to implement `ToSocketAddrs` note: required by a bound in `TcpListener::bind` --> $SRC_DIR/std/src/net/tcp.rs:LL:COL diff --git a/tests/ui/traits/suggest-dereferences/suggest-dereferencing-receiver-argument.stderr b/tests/ui/traits/suggest-dereferences/suggest-dereferencing-receiver-argument.stderr index d6033bc6baa..6045224b11e 100644 --- a/tests/ui/traits/suggest-dereferences/suggest-dereferencing-receiver-argument.stderr +++ b/tests/ui/traits/suggest-dereferences/suggest-dereferencing-receiver-argument.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `TargetStruct: From<&{integer}>` is not satisfied --> $DIR/suggest-dereferencing-receiver-argument.rs:13:30 | LL | let _b: TargetStruct = a.into(); - | ^^^^ the trait `From<&{integer}>` is not implemented for `TargetStruct` + | ^^^^ unsatisfied trait bound | +help: the trait `From<&{integer}>` is not implemented for `TargetStruct` + --> $DIR/suggest-dereferencing-receiver-argument.rs:3:1 + | +LL | struct TargetStruct; + | ^^^^^^^^^^^^^^^^^^^ = note: required for `&{integer}` to implement `Into<TargetStruct>` help: consider dereferencing here | diff --git a/tests/ui/traits/suggest-where-clause.stderr b/tests/ui/traits/suggest-where-clause.stderr index 08f3a8dc23d..d01cd26730c 100644 --- a/tests/ui/traits/suggest-where-clause.stderr +++ b/tests/ui/traits/suggest-where-clause.stderr @@ -63,7 +63,13 @@ error[E0277]: the trait bound `Misc<_>: From<T>` is not satisfied --> $DIR/suggest-where-clause.rs:23:6 | LL | <Misc<_> as From<T>>::from; - | ^^^^^^^ the trait `From<T>` is not implemented for `Misc<_>` + | ^^^^^^^ unsatisfied trait bound + | +help: the trait `From<T>` is not implemented for `Misc<_>` + --> $DIR/suggest-where-clause.rs:3:1 + | +LL | struct Misc<T:?Sized>(T); + | ^^^^^^^^^^^^^^^^^^^^^ error[E0277]: the size for values of type `[T]` cannot be known at compilation time --> $DIR/suggest-where-clause.rs:28:20 diff --git a/tests/ui/issues/issue-7563.rs b/tests/ui/traits/trait-implementation-and-usage-7563.rs index 9ee8857b999..8cfc7a14ffe 100644 --- a/tests/ui/issues/issue-7563.rs +++ b/tests/ui/traits/trait-implementation-and-usage-7563.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/7563 //@ run-pass #![allow(dead_code)] trait IDummy { diff --git a/tests/ui/traits/trait-upcasting/lifetime.stderr b/tests/ui/traits/trait-upcasting/lifetime.stderr index 589e9816d5a..f41ea68053a 100644 --- a/tests/ui/traits/trait-upcasting/lifetime.stderr +++ b/tests/ui/traits/trait-upcasting/lifetime.stderr @@ -10,7 +10,7 @@ LL | fn z(&self) -> i32 { LL | fn y(&self) -> i32 { | ^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: method `w` is never used --> $DIR/lifetime.rs:22:8 diff --git a/tests/ui/traits/trait-upcasting/replace-vptr.stderr b/tests/ui/traits/trait-upcasting/replace-vptr.stderr index 1a8bfd1bfa6..932112470c0 100644 --- a/tests/ui/traits/trait-upcasting/replace-vptr.stderr +++ b/tests/ui/traits/trait-upcasting/replace-vptr.stderr @@ -6,7 +6,7 @@ LL | trait A { LL | fn foo_a(&self); | ^^^^^ | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: method `foo_c` is never used --> $DIR/replace-vptr.rs:12:8 diff --git a/tests/ui/traits/unspecified-self-in-trait-ref.stderr b/tests/ui/traits/unspecified-self-in-trait-ref.stderr index 2e872453184..3fa74d79adc 100644 --- a/tests/ui/traits/unspecified-self-in-trait-ref.stderr +++ b/tests/ui/traits/unspecified-self-in-trait-ref.stderr @@ -6,7 +6,7 @@ LL | let a = Foo::lol(); | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | let a = <dyn Foo>::lol(); diff --git a/tests/ui/tuple/builtin-fail.stderr b/tests/ui/tuple/builtin-fail.stderr index ccbc5ae2b75..44e79578f4c 100644 --- a/tests/ui/tuple/builtin-fail.stderr +++ b/tests/ui/tuple/builtin-fail.stderr @@ -42,8 +42,13 @@ error[E0277]: `TupleStruct` is not a tuple --> $DIR/builtin-fail.rs:17:23 | LL | assert_is_tuple::<TupleStruct>(); - | ^^^^^^^^^^^ the trait `Tuple` is not implemented for `TupleStruct` + | ^^^^^^^^^^^ unsatisfied trait bound | +help: the trait `Tuple` is not implemented for `TupleStruct` + --> $DIR/builtin-fail.rs:5:1 + | +LL | struct TupleStruct(i32, i32); + | ^^^^^^^^^^^^^^^^^^ note: required by a bound in `assert_is_tuple` --> $DIR/builtin-fail.rs:3:23 | diff --git a/tests/ui/type-alias-enum-variants/enum-variant-priority-lint-ambiguous_associated_items.stderr b/tests/ui/type-alias-enum-variants/enum-variant-priority-lint-ambiguous_associated_items.stderr index 0f42fcbe04d..79bd1f2adc1 100644 --- a/tests/ui/type-alias-enum-variants/enum-variant-priority-lint-ambiguous_associated_items.stderr +++ b/tests/ui/type-alias-enum-variants/enum-variant-priority-lint-ambiguous_associated_items.stderr @@ -16,7 +16,7 @@ note: `V` could also refer to the associated type defined here | LL | type V; | ^^^^^^ - = note: `#[deny(ambiguous_associated_items)]` on by default + = note: `#[deny(ambiguous_associated_items)]` (part of `#[deny(future_incompatible)]`) on by default error: aborting due to 1 previous error diff --git a/tests/ui/type-alias-impl-trait/constrain_in_projection.current.stderr b/tests/ui/type-alias-impl-trait/constrain_in_projection.current.stderr index c4c55d8e092..955ba69d3b6 100644 --- a/tests/ui/type-alias-impl-trait/constrain_in_projection.current.stderr +++ b/tests/ui/type-alias-impl-trait/constrain_in_projection.current.stderr @@ -2,7 +2,7 @@ error[E0277]: the trait bound `Foo: Trait<Bar>` is not satisfied --> $DIR/constrain_in_projection.rs:25:14 | LL | let x = <Foo as Trait<Bar>>::Assoc::default(); - | ^^^ the trait `Trait<Bar>` is not implemented for `Foo` + | ^^^ unsatisfied trait bound | = help: the trait `Trait<Bar>` is not implemented for `Foo` but trait `Trait<()>` is implemented for it @@ -11,7 +11,7 @@ error[E0277]: the trait bound `Foo: Trait<Bar>` is not satisfied --> $DIR/constrain_in_projection.rs:25:13 | LL | let x = <Foo as Trait<Bar>>::Assoc::default(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Trait<Bar>` is not implemented for `Foo` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | = help: the trait `Trait<Bar>` is not implemented for `Foo` but trait `Trait<()>` is implemented for it diff --git a/tests/ui/type-alias-impl-trait/constrain_in_projection2.current.stderr b/tests/ui/type-alias-impl-trait/constrain_in_projection2.current.stderr index d7fb6e67ad2..4e7788bf113 100644 --- a/tests/ui/type-alias-impl-trait/constrain_in_projection2.current.stderr +++ b/tests/ui/type-alias-impl-trait/constrain_in_projection2.current.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `Foo: Trait<Bar>` is not satisfied --> $DIR/constrain_in_projection2.rs:28:14 | LL | let x = <Foo as Trait<Bar>>::Assoc::default(); - | ^^^ the trait `Trait<Bar>` is not implemented for `Foo` + | ^^^ unsatisfied trait bound | +help: the trait `Trait<Bar>` is not implemented for `Foo` + --> $DIR/constrain_in_projection2.rs:10:1 + | +LL | struct Foo; + | ^^^^^^^^^^ = help: the following other types implement trait `Trait<T>`: `Foo` implements `Trait<()>` `Foo` implements `Trait<u32>` @@ -12,8 +17,13 @@ error[E0277]: the trait bound `Foo: Trait<Bar>` is not satisfied --> $DIR/constrain_in_projection2.rs:28:13 | LL | let x = <Foo as Trait<Bar>>::Assoc::default(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Trait<Bar>` is not implemented for `Foo` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound + | +help: the trait `Trait<Bar>` is not implemented for `Foo` + --> $DIR/constrain_in_projection2.rs:10:1 | +LL | struct Foo; + | ^^^^^^^^^^ = help: the following other types implement trait `Trait<T>`: `Foo` implements `Trait<()>` `Foo` implements `Trait<u32>` diff --git a/tests/ui/type-alias-impl-trait/constrain_in_projection2.next.stderr b/tests/ui/type-alias-impl-trait/constrain_in_projection2.next.stderr index 72a253c4be8..b50d1b60c43 100644 --- a/tests/ui/type-alias-impl-trait/constrain_in_projection2.next.stderr +++ b/tests/ui/type-alias-impl-trait/constrain_in_projection2.next.stderr @@ -1,24 +1,9 @@ -error[E0283]: type annotations needed: cannot satisfy `Foo: Trait<Bar>` - --> $DIR/constrain_in_projection2.rs:28:14 +error[E0282]: type annotations needed + --> $DIR/constrain_in_projection2.rs:28:13 | LL | let x = <Foo as Trait<Bar>>::Assoc::default(); - | ^^^ - | -note: multiple `impl`s satisfying `Foo: Trait<Bar>` found - --> $DIR/constrain_in_projection2.rs:18:1 - | -LL | impl Trait<()> for Foo { - | ^^^^^^^^^^^^^^^^^^^^^^ -... -LL | impl Trait<u32> for Foo { - | ^^^^^^^^^^^^^^^^^^^^^^^ - = note: associated types cannot be accessed directly on a `trait`, they can only be accessed through a specific `impl` -help: use the fully qualified path to an implementation - | -LL - let x = <Foo as Trait<Bar>>::Assoc::default(); -LL + let x = <<Type as Trait>::Assoc as Trait<Bar>>::Assoc::default(); - | + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0283`. +For more information about this error, try `rustc --explain E0282`. diff --git a/tests/ui/type-alias-impl-trait/constrain_in_projection2.rs b/tests/ui/type-alias-impl-trait/constrain_in_projection2.rs index 61773cf59d4..c4aa6f32eab 100644 --- a/tests/ui/type-alias-impl-trait/constrain_in_projection2.rs +++ b/tests/ui/type-alias-impl-trait/constrain_in_projection2.rs @@ -26,7 +26,7 @@ impl Trait<u32> for Foo { #[define_opaque(Bar)] fn bop() { let x = <Foo as Trait<Bar>>::Assoc::default(); - //[next]~^ ERROR: cannot satisfy `Foo: Trait<Bar>` + //[next]~^ ERROR: type annotations needed //[current]~^^ ERROR: `Foo: Trait<Bar>` is not satisfied //[current]~| ERROR: `Foo: Trait<Bar>` is not satisfied } diff --git a/tests/ui/type-alias-impl-trait/different_args_considered_equal2.rs b/tests/ui/type-alias-impl-trait/different_args_considered_equal2.rs index 902d6ca57e6..5c6ad2cc725 100644 --- a/tests/ui/type-alias-impl-trait/different_args_considered_equal2.rs +++ b/tests/ui/type-alias-impl-trait/different_args_considered_equal2.rs @@ -8,7 +8,7 @@ fn get_one<'a>(a: *mut &'a str) -> impl IntoIterator<Item = Opaque<'a>> { Some(a) } else { None::<Opaque<'static>> - //~^ ERROR hidden type for `Opaque<'static>` captures lifetime that does not appear in bounds + //~^ ERROR expected generic lifetime parameter, found `'static` } } diff --git a/tests/ui/type-alias-impl-trait/different_args_considered_equal2.stderr b/tests/ui/type-alias-impl-trait/different_args_considered_equal2.stderr index 562ab4168b5..2cb8f03235a 100644 --- a/tests/ui/type-alias-impl-trait/different_args_considered_equal2.stderr +++ b/tests/ui/type-alias-impl-trait/different_args_considered_equal2.stderr @@ -1,15 +1,12 @@ -error[E0700]: hidden type for `Opaque<'static>` captures lifetime that does not appear in bounds +error[E0792]: expected generic lifetime parameter, found `'static` --> $DIR/different_args_considered_equal2.rs:10:9 | LL | pub type Opaque<'a> = impl Sized; - | ---------- opaque type defined here -... -LL | fn get_one<'a>(a: *mut &'a str) -> impl IntoIterator<Item = Opaque<'a>> { - | -- hidden type `*mut &'a str` captures the lifetime `'a` as defined here + | -- cannot use static lifetime; use a bound lifetime instead or remove the lifetime parameter from the opaque type ... LL | None::<Opaque<'static>> | ^^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0700`. +For more information about this error, try `rustc --explain E0792`. diff --git a/tests/ui/type-alias-impl-trait/generic-not-strictly-equal.member_constraints.stderr b/tests/ui/type-alias-impl-trait/generic-not-strictly-equal.member_constraints.stderr index 4a5360c9922..43e887f36c5 100644 --- a/tests/ui/type-alias-impl-trait/generic-not-strictly-equal.member_constraints.stderr +++ b/tests/ui/type-alias-impl-trait/generic-not-strictly-equal.member_constraints.stderr @@ -1,15 +1,12 @@ -error[E0700]: hidden type for `Opaque<'x>` captures lifetime that does not appear in bounds +error[E0792]: expected generic lifetime parameter, found `'_` --> $DIR/generic-not-strictly-equal.rs:34:5 | LL | type Opaque<'a> = impl Copy + Captures<'a>; - | ------------------------ opaque type defined here -... -LL | fn test<'x>(_: Opaque<'x>) { - | -- hidden type `&'x u8` captures the lifetime `'x` as defined here + | -- this generic parameter must be used with a generic lifetime parameter ... LL | relate(opaque, hidden); // defining use: Opaque<'?1> := u8 | ^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0700`. +For more information about this error, try `rustc --explain E0792`. diff --git a/tests/ui/type-alias-impl-trait/generic-not-strictly-equal.rs b/tests/ui/type-alias-impl-trait/generic-not-strictly-equal.rs index c1059e3da33..42f363d0e57 100644 --- a/tests/ui/type-alias-impl-trait/generic-not-strictly-equal.rs +++ b/tests/ui/type-alias-impl-trait/generic-not-strictly-equal.rs @@ -32,8 +32,7 @@ fn test<'x>(_: Opaque<'x>) { ensure_outlives::<'x>(opaque); // outlives constraint: '?1: 'x relate(opaque, hidden); // defining use: Opaque<'?1> := u8 - //[basic]~^ ERROR expected generic lifetime parameter, found `'_` - //[member_constraints]~^^ ERROR captures lifetime that does not appear in bounds + //~^ ERROR expected generic lifetime parameter, found `'_` } fn main() {} diff --git a/tests/ui/type-alias-impl-trait/generic_nondefining_use.stderr b/tests/ui/type-alias-impl-trait/generic_nondefining_use.current.stderr index 71e415271ee..2a78860689b 100644 --- a/tests/ui/type-alias-impl-trait/generic_nondefining_use.stderr +++ b/tests/ui/type-alias-impl-trait/generic_nondefining_use.current.stderr @@ -1,5 +1,5 @@ error[E0792]: expected generic type parameter, found `u32` - --> $DIR/generic_nondefining_use.rs:16:21 + --> $DIR/generic_nondefining_use.rs:20:21 | LL | type OneTy<T> = impl Debug; | - this generic parameter must be used with a generic type parameter @@ -8,7 +8,7 @@ LL | fn concrete_ty() -> OneTy<u32> { | ^^^^^^^^^^ error[E0792]: expected generic lifetime parameter, found `'static` - --> $DIR/generic_nondefining_use.rs:23:5 + --> $DIR/generic_nondefining_use.rs:29:5 | LL | type OneLifetime<'a> = impl Debug; | -- cannot use static lifetime; use a bound lifetime instead or remove the lifetime parameter from the opaque type @@ -17,7 +17,7 @@ LL | 6u32 | ^^^^ error[E0792]: expected generic constant parameter, found `123` - --> $DIR/generic_nondefining_use.rs:28:24 + --> $DIR/generic_nondefining_use.rs:35:24 | LL | type OneConst<const X: usize> = impl Debug; | -------------- this generic parameter must be used with a generic constant parameter diff --git a/tests/ui/type-alias-impl-trait/generic_nondefining_use.next.stderr b/tests/ui/type-alias-impl-trait/generic_nondefining_use.next.stderr new file mode 100644 index 00000000000..2b53614ee3f --- /dev/null +++ b/tests/ui/type-alias-impl-trait/generic_nondefining_use.next.stderr @@ -0,0 +1,44 @@ +error: item does not constrain `OneTy::{opaque#0}` + --> $DIR/generic_nondefining_use.rs:20:4 + | +LL | fn concrete_ty() -> OneTy<u32> { + | ^^^^^^^^^^^ + | + = note: consider removing `#[define_opaque]` or adding an empty `#[define_opaque()]` +note: this opaque type is supposed to be constrained + --> $DIR/generic_nondefining_use.rs:11:17 + | +LL | type OneTy<T> = impl Debug; + | ^^^^^^^^^^ +note: this use of `OneTy<u32>` does not have unique universal generic arguments + --> $DIR/generic_nondefining_use.rs:23:5 + | +LL | 5u32 + | ^^^^ + +error: non-defining use of `OneLifetime<'_>` in the defining scope + --> $DIR/generic_nondefining_use.rs:27:1 + | +LL | fn concrete_lifetime() -> OneLifetime<'static> { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: item does not constrain `OneConst::{opaque#0}` + --> $DIR/generic_nondefining_use.rs:35:4 + | +LL | fn concrete_const() -> OneConst<{ 123 }> { + | ^^^^^^^^^^^^^^ + | + = note: consider removing `#[define_opaque]` or adding an empty `#[define_opaque()]` +note: this opaque type is supposed to be constrained + --> $DIR/generic_nondefining_use.rs:15:33 + | +LL | type OneConst<const X: usize> = impl Debug; + | ^^^^^^^^^^ +note: this use of `OneConst<123>` does not have unique universal generic arguments + --> $DIR/generic_nondefining_use.rs:38:5 + | +LL | 7u32 + | ^^^^ + +error: aborting due to 3 previous errors + diff --git a/tests/ui/type-alias-impl-trait/generic_nondefining_use.rs b/tests/ui/type-alias-impl-trait/generic_nondefining_use.rs index cf38c93bd92..7250a9ac0b3 100644 --- a/tests/ui/type-alias-impl-trait/generic_nondefining_use.rs +++ b/tests/ui/type-alias-impl-trait/generic_nondefining_use.rs @@ -1,5 +1,9 @@ #![feature(type_alias_impl_trait)] +//@ revisions: current next +//@ ignore-compare-mode-next-solver (explicit revisions) +//@[next] compile-flags: -Znext-solver + use std::fmt::Debug; fn main() {} @@ -14,18 +18,22 @@ type OneConst<const X: usize> = impl Debug; #[define_opaque(OneTy)] fn concrete_ty() -> OneTy<u32> { - //~^ ERROR: expected generic type parameter, found `u32` + //[current]~^ ERROR: expected generic type parameter, found `u32` + //[next]~^^ ERROR: item does not constrain `OneTy::{opaque#0}` 5u32 } #[define_opaque(OneLifetime)] fn concrete_lifetime() -> OneLifetime<'static> { + //[next]~^ ERROR: non-defining use of `OneLifetime<'_>` in the defining scope 6u32 - //~^ ERROR: expected generic lifetime parameter, found `'static` + //[current]~^ ERROR: expected generic lifetime parameter, found `'static` + } #[define_opaque(OneConst)] fn concrete_const() -> OneConst<{ 123 }> { - //~^ ERROR: expected generic constant parameter, found `123` + //[current]~^ ERROR: expected generic constant parameter, found `123` + //[next]~^^ ERROR: item does not constrain `OneConst::{opaque#0}` 7u32 } diff --git a/tests/ui/type-alias-impl-trait/higher_kinded_params3.rs b/tests/ui/type-alias-impl-trait/higher_kinded_params3.rs index 4fb2e60b5c5..04208faddde 100644 --- a/tests/ui/type-alias-impl-trait/higher_kinded_params3.rs +++ b/tests/ui/type-alias-impl-trait/higher_kinded_params3.rs @@ -24,8 +24,7 @@ type Successors<'a> = impl std::fmt::Debug + 'a; impl Terminator { #[define_opaque(Successors, Tait)] fn successors(&self, mut f: for<'x> fn(&'x ()) -> <&'x A as B>::C) -> Successors<'_> { - f = g; - //~^ ERROR mismatched types + f = g; //~ ERROR expected generic lifetime parameter, found `'x` } } diff --git a/tests/ui/type-alias-impl-trait/higher_kinded_params3.stderr b/tests/ui/type-alias-impl-trait/higher_kinded_params3.stderr index 558792987f3..8e6778bdd0b 100644 --- a/tests/ui/type-alias-impl-trait/higher_kinded_params3.stderr +++ b/tests/ui/type-alias-impl-trait/higher_kinded_params3.stderr @@ -1,15 +1,12 @@ -error[E0308]: mismatched types +error[E0792]: expected generic lifetime parameter, found `'x` --> $DIR/higher_kinded_params3.rs:27:9 | LL | type Tait<'a> = impl std::fmt::Debug + 'a; - | ------------------------- the expected opaque type + | -- this generic parameter must be used with a generic lifetime parameter ... LL | f = g; - | ^^^^^ one type is more general than the other - | - = note: expected fn pointer `for<'x> fn(&'x ()) -> Tait<'x>` - found fn pointer `for<'a> fn(&'a ()) -> &'a ()` + | ^^^^^ error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0308`. +For more information about this error, try `rustc --explain E0792`. diff --git a/tests/ui/type-alias-impl-trait/hkl_forbidden3.rs b/tests/ui/type-alias-impl-trait/hkl_forbidden3.rs index c7f04dc07bb..ba75b114a11 100644 --- a/tests/ui/type-alias-impl-trait/hkl_forbidden3.rs +++ b/tests/ui/type-alias-impl-trait/hkl_forbidden3.rs @@ -8,7 +8,7 @@ fn foo<'a>(x: &'a ()) -> &'a () { #[define_opaque(Opaque)] fn test() -> for<'a> fn(&'a ()) -> Opaque<'a> { - foo //~ ERROR: mismatched types + foo //~ ERROR: expected generic lifetime parameter, found `'a` } fn main() {} diff --git a/tests/ui/type-alias-impl-trait/hkl_forbidden3.stderr b/tests/ui/type-alias-impl-trait/hkl_forbidden3.stderr index b8c04185a7d..d699059e397 100644 --- a/tests/ui/type-alias-impl-trait/hkl_forbidden3.stderr +++ b/tests/ui/type-alias-impl-trait/hkl_forbidden3.stderr @@ -1,15 +1,12 @@ -error[E0308]: mismatched types +error[E0792]: expected generic lifetime parameter, found `'a` --> $DIR/hkl_forbidden3.rs:11:5 | LL | type Opaque<'a> = impl Sized + 'a; - | --------------- the expected opaque type + | -- this generic parameter must be used with a generic lifetime parameter ... LL | foo - | ^^^ one type is more general than the other - | - = note: expected fn pointer `for<'a> fn(&'a ()) -> Opaque<'a>` - found fn pointer `for<'a> fn(&'a ()) -> &'a ()` + | ^^^ error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0308`. +For more information about this error, try `rustc --explain E0792`. diff --git a/tests/ui/type-alias-impl-trait/in-assoc-ty-early-bound.rs b/tests/ui/type-alias-impl-trait/in-assoc-ty-early-bound.rs index baeba1d3de6..013651e8775 100644 --- a/tests/ui/type-alias-impl-trait/in-assoc-ty-early-bound.rs +++ b/tests/ui/type-alias-impl-trait/in-assoc-ty-early-bound.rs @@ -9,7 +9,7 @@ impl Foo for () { type Assoc<'a, 'b> = impl Sized; fn bar<'a: 'a, 'b: 'b>(x: &'a ()) -> Self::Assoc<'a, 'b> { let closure = |x: &'a ()| -> Self::Assoc<'b, 'a> { x }; - //~^ ERROR `<() as Foo>::Assoc<'b, 'a>` captures lifetime that does not appear in bounds + //~^ ERROR expected generic lifetime parameter, found `'_` x } } diff --git a/tests/ui/type-alias-impl-trait/in-assoc-ty-early-bound.stderr b/tests/ui/type-alias-impl-trait/in-assoc-ty-early-bound.stderr index a7d3e7f0be4..f399520e7fd 100644 --- a/tests/ui/type-alias-impl-trait/in-assoc-ty-early-bound.stderr +++ b/tests/ui/type-alias-impl-trait/in-assoc-ty-early-bound.stderr @@ -1,13 +1,12 @@ -error[E0700]: hidden type for `<() as Foo>::Assoc<'b, 'a>` captures lifetime that does not appear in bounds +error[E0792]: expected generic lifetime parameter, found `'_` --> $DIR/in-assoc-ty-early-bound.rs:11:60 | LL | type Assoc<'a, 'b> = impl Sized; - | ---------- opaque type defined here + | -- this generic parameter must be used with a generic lifetime parameter LL | fn bar<'a: 'a, 'b: 'b>(x: &'a ()) -> Self::Assoc<'a, 'b> { - | -- hidden type `&'a ()` captures the lifetime `'a` as defined here LL | let closure = |x: &'a ()| -> Self::Assoc<'b, 'a> { x }; | ^ error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0700`. +For more information about this error, try `rustc --explain E0792`. diff --git a/tests/ui/type-alias-impl-trait/in-assoc-ty-early-bound2.rs b/tests/ui/type-alias-impl-trait/in-assoc-ty-early-bound2.rs index 92c8a8f3216..21df53c43d7 100644 --- a/tests/ui/type-alias-impl-trait/in-assoc-ty-early-bound2.rs +++ b/tests/ui/type-alias-impl-trait/in-assoc-ty-early-bound2.rs @@ -13,7 +13,7 @@ impl Foo for () { { let _ = |x: &'a ()| { let _: Self::Assoc<'a> = x; - //~^ ERROR `<() as Foo>::Assoc<'a>` captures lifetime that does not appear in bound + //~^ ERROR expected generic lifetime parameter, found `'_` }; } } diff --git a/tests/ui/type-alias-impl-trait/in-assoc-ty-early-bound2.stderr b/tests/ui/type-alias-impl-trait/in-assoc-ty-early-bound2.stderr index 7ce4517fb1e..aaed03e739b 100644 --- a/tests/ui/type-alias-impl-trait/in-assoc-ty-early-bound2.stderr +++ b/tests/ui/type-alias-impl-trait/in-assoc-ty-early-bound2.stderr @@ -1,14 +1,12 @@ -error[E0700]: hidden type for `<() as Foo>::Assoc<'a>` captures lifetime that does not appear in bounds +error[E0792]: expected generic lifetime parameter, found `'_` --> $DIR/in-assoc-ty-early-bound2.rs:15:20 | LL | type Assoc<'a> = impl Sized; - | ---------- opaque type defined here -LL | fn bar<'a: 'a>() - | -- hidden type `&'a ()` captures the lifetime `'a` as defined here + | -- this generic parameter must be used with a generic lifetime parameter ... LL | let _: Self::Assoc<'a> = x; | ^^^^^^^^^^^^^^^ error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0700`. +For more information about this error, try `rustc --explain E0792`. diff --git a/tests/ui/type-alias-impl-trait/issue-53092-2.rs b/tests/ui/type-alias-impl-trait/issue-53092-2.rs index 1a530d27971..4ddb06e40ff 100644 --- a/tests/ui/type-alias-impl-trait/issue-53092-2.rs +++ b/tests/ui/type-alias-impl-trait/issue-53092-2.rs @@ -2,11 +2,11 @@ #![allow(dead_code)] type Bug<T, U> = impl Fn(T) -> U + Copy; -//~^ ERROR cycle detected when computing type of `Bug::{opaque#0}` #[define_opaque(Bug)] const CONST_BUG: Bug<u8, ()> = unsafe { std::mem::transmute(|_: u8| ()) }; //~^ ERROR item does not constrain `Bug::{opaque#0}` +//~| ERROR: cannot transmute between types of different sizes, or dependently-sized types #[define_opaque(Bug)] fn make_bug<T, U: From<T>>() -> Bug<T, U> { diff --git a/tests/ui/type-alias-impl-trait/issue-53092-2.stderr b/tests/ui/type-alias-impl-trait/issue-53092-2.stderr index c8db9fdfc57..689f7a733cb 100644 --- a/tests/ui/type-alias-impl-trait/issue-53092-2.stderr +++ b/tests/ui/type-alias-impl-trait/issue-53092-2.stderr @@ -1,56 +1,5 @@ -error[E0391]: cycle detected when computing type of `Bug::{opaque#0}` - --> $DIR/issue-53092-2.rs:4:18 - | -LL | type Bug<T, U> = impl Fn(T) -> U + Copy; - | ^^^^^^^^^^^^^^^^^^^^^^ - | -note: ...which requires computing type of opaque `Bug::{opaque#0}`... - --> $DIR/issue-53092-2.rs:4:18 - | -LL | type Bug<T, U> = impl Fn(T) -> U + Copy; - | ^^^^^^^^^^^^^^^^^^^^^^ -note: ...which requires borrow-checking `CONST_BUG`... - --> $DIR/issue-53092-2.rs:8:1 - | -LL | const CONST_BUG: Bug<u8, ()> = unsafe { std::mem::transmute(|_: u8| ()) }; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -note: ...which requires promoting constants in MIR for `CONST_BUG`... - --> $DIR/issue-53092-2.rs:8:1 - | -LL | const CONST_BUG: Bug<u8, ()> = unsafe { std::mem::transmute(|_: u8| ()) }; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -note: ...which requires const checking `CONST_BUG`... - --> $DIR/issue-53092-2.rs:8:1 - | -LL | const CONST_BUG: Bug<u8, ()> = unsafe { std::mem::transmute(|_: u8| ()) }; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -note: ...which requires building MIR for `CONST_BUG`... - --> $DIR/issue-53092-2.rs:8:1 - | -LL | const CONST_BUG: Bug<u8, ()> = unsafe { std::mem::transmute(|_: u8| ()) }; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -note: ...which requires match-checking `CONST_BUG`... - --> $DIR/issue-53092-2.rs:8:1 - | -LL | const CONST_BUG: Bug<u8, ()> = unsafe { std::mem::transmute(|_: u8| ()) }; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -note: ...which requires type-checking `CONST_BUG`... - --> $DIR/issue-53092-2.rs:8:1 - | -LL | const CONST_BUG: Bug<u8, ()> = unsafe { std::mem::transmute(|_: u8| ()) }; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - = note: ...which requires computing layout of `Bug<u8, ()>`... - = note: ...which requires normalizing `Bug<u8, ()>`... - = note: ...which again requires computing type of `Bug::{opaque#0}`, completing the cycle -note: cycle used when checking that `Bug::{opaque#0}` is well-formed - --> $DIR/issue-53092-2.rs:4:18 - | -LL | type Bug<T, U> = impl Fn(T) -> U + Copy; - | ^^^^^^^^^^^^^^^^^^^^^^ - = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information - error: item does not constrain `Bug::{opaque#0}` - --> $DIR/issue-53092-2.rs:8:7 + --> $DIR/issue-53092-2.rs:7:7 | LL | const CONST_BUG: Bug<u8, ()> = unsafe { std::mem::transmute(|_: u8| ()) }; | ^^^^^^^^^ @@ -62,6 +11,15 @@ note: this opaque type is supposed to be constrained LL | type Bug<T, U> = impl Fn(T) -> U + Copy; | ^^^^^^^^^^^^^^^^^^^^^^ +error[E0512]: cannot transmute between types of different sizes, or dependently-sized types + --> $DIR/issue-53092-2.rs:7:41 + | +LL | const CONST_BUG: Bug<u8, ()> = unsafe { std::mem::transmute(|_: u8| ()) }; + | ^^^^^^^^^^^^^^^^^^^ + | + = note: source type: `{closure@$DIR/issue-53092-2.rs:7:61: 7:68}` (0 bits) + = note: target type: `{type error}` (the type has an unknown layout) + error: aborting due to 2 previous errors -For more information about this error, try `rustc --explain E0391`. +For more information about this error, try `rustc --explain E0512`. diff --git a/tests/ui/type-alias-impl-trait/no_inferrable_concrete_type.rs b/tests/ui/type-alias-impl-trait/no_inferrable_concrete_type.rs index 8e5e4719415..bd1d6651859 100644 --- a/tests/ui/type-alias-impl-trait/no_inferrable_concrete_type.rs +++ b/tests/ui/type-alias-impl-trait/no_inferrable_concrete_type.rs @@ -15,5 +15,6 @@ pub fn bar(x: Foo) -> Foo { fn main() { unsafe { let _: Foo = std::mem::transmute(0u8); + //~^ ERROR: cannot transmute between types of different sizes, or dependently-sized types } } diff --git a/tests/ui/type-alias-impl-trait/no_inferrable_concrete_type.stderr b/tests/ui/type-alias-impl-trait/no_inferrable_concrete_type.stderr index a57793d5a77..c9646a4e9a4 100644 --- a/tests/ui/type-alias-impl-trait/no_inferrable_concrete_type.stderr +++ b/tests/ui/type-alias-impl-trait/no_inferrable_concrete_type.stderr @@ -11,5 +11,15 @@ note: this opaque type is supposed to be constrained LL | pub type Foo = impl Copy; | ^^^^^^^^^ -error: aborting due to 1 previous error +error[E0512]: cannot transmute between types of different sizes, or dependently-sized types + --> $DIR/no_inferrable_concrete_type.rs:17:22 + | +LL | let _: Foo = std::mem::transmute(0u8); + | ^^^^^^^^^^^^^^^^^^^ + | + = note: source type: `u8` (8 bits) + = note: target type: `{type error}` (the type has an unknown layout) + +error: aborting due to 2 previous errors +For more information about this error, try `rustc --explain E0512`. diff --git a/tests/ui/type-alias-impl-trait/normalize-args-before-defining-use-check.rs b/tests/ui/type-alias-impl-trait/normalize-args-before-defining-use-check.rs new file mode 100644 index 00000000000..2879b8fe94c --- /dev/null +++ b/tests/ui/type-alias-impl-trait/normalize-args-before-defining-use-check.rs @@ -0,0 +1,33 @@ +#![feature(type_alias_impl_trait)] + +//@ revisions: current next +//@ ignore-compare-mode-next-solver (explicit revisions) +//@ [next] compile-flags: -Znext-solver +//@ check-pass + +// Regression test for trait-system-refactor-initiative#49. + +trait Mirror<'a> { + type Assoc; +} +impl<'a, T> Mirror<'a> for T { + type Assoc = T; +} + +type HrAmbigAlias<T> = impl Sized; +fn ret_tait<T>() -> for<'a> fn(HrAmbigAlias<<T as Mirror<'a>>::Assoc>) { + |_| () +} + +#[define_opaque(HrAmbigAlias)] +fn define_hr_ambig_alias<T>() { + let _: fn(T) = ret_tait::<T>(); +} + +type InUserType<T> = impl Sized; +#[define_opaque(InUserType)] +fn in_user_type<T>() { + let x: InUserType<<T as Mirror<'static>>::Assoc> = (); +} + +fn main() {} diff --git a/tests/ui/type/pattern_types/or_patterns_invalid.rs b/tests/ui/type/pattern_types/or_patterns_invalid.rs index d341927601d..a99667c5412 100644 --- a/tests/ui/type/pattern_types/or_patterns_invalid.rs +++ b/tests/ui/type/pattern_types/or_patterns_invalid.rs @@ -13,14 +13,18 @@ use std::pat::pattern_type; fn main() { //~? ERROR: only non-overlapping pattern type ranges are allowed at present let not_adjacent: pattern_type!(i8 is -127..0 | 1..) = unsafe { std::mem::transmute(0) }; + //~^ ERROR: cannot transmute between types of different sizes, or dependently-sized types //~? ERROR: one pattern needs to end at `i8::MAX`, but was 29 instead let not_wrapping: pattern_type!(i8 is 10..20 | 20..30) = unsafe { std::mem::transmute(0) }; + //~^ ERROR: cannot transmute between types of different sizes, or dependently-sized types //~? ERROR: only signed integer base types are allowed for or-pattern pattern types let not_signed: pattern_type!(u8 is 10.. | 0..5) = unsafe { std::mem::transmute(0) }; + //~^ ERROR: cannot transmute between types of different sizes, or dependently-sized types //~? ERROR: allowed are two range patterns that are directly connected let not_simple_enough_for_mvp: pattern_type!(i8 is ..0 | 1..10 | 10..) = unsafe { std::mem::transmute(0) }; + //~^ ERROR: cannot transmute between types of different sizes, or dependently-sized types } diff --git a/tests/ui/type/pattern_types/or_patterns_invalid.stderr b/tests/ui/type/pattern_types/or_patterns_invalid.stderr index 6964788a6c2..e229c11386d 100644 --- a/tests/ui/type/pattern_types/or_patterns_invalid.stderr +++ b/tests/ui/type/pattern_types/or_patterns_invalid.stderr @@ -1,10 +1,47 @@ error: only non-overlapping pattern type ranges are allowed at present +error[E0512]: cannot transmute between types of different sizes, or dependently-sized types + --> $DIR/or_patterns_invalid.rs:15:69 + | +LL | let not_adjacent: pattern_type!(i8 is -127..0 | 1..) = unsafe { std::mem::transmute(0) }; + | ^^^^^^^^^^^^^^^^^^^ + | + = note: source type: `i32` (32 bits) + = note: target type: `(i8) is (-127..=-1 | 1..)` (the type has an unknown layout) + error: one pattern needs to end at `i8::MAX`, but was 29 instead +error[E0512]: cannot transmute between types of different sizes, or dependently-sized types + --> $DIR/or_patterns_invalid.rs:19:71 + | +LL | let not_wrapping: pattern_type!(i8 is 10..20 | 20..30) = unsafe { std::mem::transmute(0) }; + | ^^^^^^^^^^^^^^^^^^^ + | + = note: source type: `i32` (32 bits) + = note: target type: `(i8) is (10..=19 | 20..=29)` (the type has an unknown layout) + error: only signed integer base types are allowed for or-pattern pattern types at present +error[E0512]: cannot transmute between types of different sizes, or dependently-sized types + --> $DIR/or_patterns_invalid.rs:23:65 + | +LL | let not_signed: pattern_type!(u8 is 10.. | 0..5) = unsafe { std::mem::transmute(0) }; + | ^^^^^^^^^^^^^^^^^^^ + | + = note: source type: `i32` (32 bits) + = note: target type: `(u8) is (10.. | 0..=4)` (the type has an unknown layout) + error: the only or-pattern types allowed are two range patterns that are directly connected at their overflow site -error: aborting due to 4 previous errors +error[E0512]: cannot transmute between types of different sizes, or dependently-sized types + --> $DIR/or_patterns_invalid.rs:28:18 + | +LL | unsafe { std::mem::transmute(0) }; + | ^^^^^^^^^^^^^^^^^^^ + | + = note: source type: `i32` (32 bits) + = note: target type: `(i8) is (i8::MIN..=-1 | 1..=9 | 10..)` (the type has an unknown layout) + +error: aborting due to 8 previous errors +For more information about this error, try `rustc --explain E0512`. diff --git a/tests/ui/type/type-name-basic.rs b/tests/ui/type/type-name-basic.rs index e1310e1f365..343bcae175a 100644 --- a/tests/ui/type/type-name-basic.rs +++ b/tests/ui/type/type-name-basic.rs @@ -5,7 +5,7 @@ #![allow(dead_code)] -use std::any::type_name; +use std::any::{Any, type_name, type_name_of_val}; use std::borrow::Cow; struct Foo<T>(T); @@ -29,6 +29,12 @@ macro_rules! t { } } +macro_rules! v { + ($v:expr, $str:literal) => { + assert_eq!(type_name_of_val(&$v), $str); + } +} + pub fn main() { t!(bool, "bool"); t!(char, "char"); @@ -91,4 +97,14 @@ pub fn main() { } } S::<u32>::test(); + + struct Wrap<T>(T); + impl Wrap<&()> { + fn get(&self) -> impl Any { + struct Info; + Info + } + } + let a = Wrap(&()).get(); + v!(a, "type_name_basic::main::Wrap<&()>::get::Info"); } diff --git a/tests/ui/issues/issue-8767.rs b/tests/ui/typeck/impl-for-nonexistent-type-error-8767.rs index 972101a0bc3..005c676ed39 100644 --- a/tests/ui/issues/issue-8767.rs +++ b/tests/ui/typeck/impl-for-nonexistent-type-error-8767.rs @@ -1,3 +1,4 @@ +// https://github.com/rust-lang/rust/issues/8767 impl B { //~ ERROR cannot find type `B` in this scope } diff --git a/tests/ui/issues/issue-8767.stderr b/tests/ui/typeck/impl-for-nonexistent-type-error-8767.stderr index 66141628e28..0e37391a00f 100644 --- a/tests/ui/issues/issue-8767.stderr +++ b/tests/ui/typeck/impl-for-nonexistent-type-error-8767.stderr @@ -1,5 +1,5 @@ error[E0412]: cannot find type `B` in this scope - --> $DIR/issue-8767.rs:1:6 + --> $DIR/impl-for-nonexistent-type-error-8767.rs:2:6 | LL | impl B { | ^ not found in this scope diff --git a/tests/ui/typeck/typeck-default-trait-impl-negation-send.stderr b/tests/ui/typeck/typeck-default-trait-impl-negation-send.stderr index 771272ad10b..761277775f3 100644 --- a/tests/ui/typeck/typeck-default-trait-impl-negation-send.stderr +++ b/tests/ui/typeck/typeck-default-trait-impl-negation-send.stderr @@ -4,7 +4,11 @@ error[E0277]: `MyNotSendable` cannot be sent between threads safely LL | is_send::<MyNotSendable>(); | ^^^^^^^^^^^^^ `MyNotSendable` cannot be sent between threads safely | - = help: the trait `Send` is not implemented for `MyNotSendable` +help: the trait `Send` is not implemented for `MyNotSendable` + --> $DIR/typeck-default-trait-impl-negation-send.rs:9:1 + | +LL | struct MyNotSendable { + | ^^^^^^^^^^^^^^^^^^^^ note: required by a bound in `is_send` --> $DIR/typeck-default-trait-impl-negation-send.rs:15:15 | diff --git a/tests/ui/typeck/typeck-default-trait-impl-negation-sync.stderr b/tests/ui/typeck/typeck-default-trait-impl-negation-sync.stderr index b9fca1a1b54..92629704c89 100644 --- a/tests/ui/typeck/typeck-default-trait-impl-negation-sync.stderr +++ b/tests/ui/typeck/typeck-default-trait-impl-negation-sync.stderr @@ -4,7 +4,11 @@ error[E0277]: `MyNotSync` cannot be shared between threads safely LL | is_sync::<MyNotSync>(); | ^^^^^^^^^ `MyNotSync` cannot be shared between threads safely | - = help: the trait `Sync` is not implemented for `MyNotSync` +help: the trait `Sync` is not implemented for `MyNotSync` + --> $DIR/typeck-default-trait-impl-negation-sync.rs:15:1 + | +LL | struct MyNotSync { + | ^^^^^^^^^^^^^^^^ note: required by a bound in `is_sync` --> $DIR/typeck-default-trait-impl-negation-sync.rs:29:15 | @@ -35,7 +39,11 @@ error[E0277]: `Managed` cannot be shared between threads safely LL | is_sync::<MyTypeManaged>(); | ^^^^^^^^^^^^^ `Managed` cannot be shared between threads safely | - = help: within `MyTypeManaged`, the trait `Sync` is not implemented for `Managed` +help: within `MyTypeManaged`, the trait `Sync` is not implemented for `Managed` + --> $DIR/typeck-default-trait-impl-negation-sync.rs:3:1 + | +LL | struct Managed; + | ^^^^^^^^^^^^^^ note: required because it appears within the type `MyTypeManaged` --> $DIR/typeck-default-trait-impl-negation-sync.rs:25:8 | diff --git a/tests/ui/typeck/typeck-unsafe-always-share.stderr b/tests/ui/typeck/typeck-unsafe-always-share.stderr index 154e504996b..c680c6ee27b 100644 --- a/tests/ui/typeck/typeck-unsafe-always-share.stderr +++ b/tests/ui/typeck/typeck-unsafe-always-share.stderr @@ -56,7 +56,11 @@ LL | test(NoSync); | | | required by a bound introduced by this call | - = help: the trait `Sync` is not implemented for `NoSync` +help: the trait `Sync` is not implemented for `NoSync` + --> $DIR/typeck-unsafe-always-share.rs:12:1 + | +LL | struct NoSync; + | ^^^^^^^^^^^^^ note: required by a bound in `test` --> $DIR/typeck-unsafe-always-share.rs:15:12 | diff --git a/tests/ui/unboxed-closures/unboxed-closures-counter-not-moved.stderr b/tests/ui/unboxed-closures/unboxed-closures-counter-not-moved.stderr index 6450cc30ac0..190ef0f4724 100644 --- a/tests/ui/unboxed-closures/unboxed-closures-counter-not-moved.stderr +++ b/tests/ui/unboxed-closures/unboxed-closures-counter-not-moved.stderr @@ -4,7 +4,7 @@ warning: unused variable: `item` LL | for item in y { | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` | - = note: `#[warn(unused_variables)]` on by default + = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default warning: value assigned to `counter` is never read --> $DIR/unboxed-closures-counter-not-moved.rs:24:9 @@ -13,7 +13,7 @@ LL | counter += 1; | ^^^^^^^ | = help: maybe it is overwritten before being read? - = note: `#[warn(unused_assignments)]` on by default + = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default warning: unused variable: `counter` --> $DIR/unboxed-closures-counter-not-moved.rs:24:9 diff --git a/tests/ui/unboxed-closures/unboxed-closures-fnmut-as-fn.stderr b/tests/ui/unboxed-closures/unboxed-closures-fnmut-as-fn.stderr index 9c5d824185b..0dd6dcfe6a3 100644 --- a/tests/ui/unboxed-closures/unboxed-closures-fnmut-as-fn.stderr +++ b/tests/ui/unboxed-closures/unboxed-closures-fnmut-as-fn.stderr @@ -6,7 +6,11 @@ LL | let x = call_it(&S, 22); | | | required by a bound introduced by this call | - = help: the trait `Fn(isize)` is not implemented for `S` +help: the trait `Fn(isize)` is not implemented for `S` + --> $DIR/unboxed-closures-fnmut-as-fn.rs:8:1 + | +LL | struct S; + | ^^^^^^^^ = note: `S` implements `FnMut`, but it must implement `Fn`, which is more general note: required by a bound in `call_it` --> $DIR/unboxed-closures-fnmut-as-fn.rs:22:14 diff --git a/tests/ui/unboxed-closures/unboxed-closures-move-mutable.stderr b/tests/ui/unboxed-closures/unboxed-closures-move-mutable.stderr index 813e2eea568..24590128107 100644 --- a/tests/ui/unboxed-closures/unboxed-closures-move-mutable.stderr +++ b/tests/ui/unboxed-closures/unboxed-closures-move-mutable.stderr @@ -5,7 +5,7 @@ LL | move || x += 1; | ^ | = help: did you mean to capture by reference instead? - = note: `#[warn(unused_variables)]` on by default + = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default warning: unused variable: `x` --> $DIR/unboxed-closures-move-mutable.rs:20:17 diff --git a/tests/ui/unpretty/exhaustive.expanded.stdout b/tests/ui/unpretty/exhaustive.expanded.stdout index 0327ad5f92b..a12ea0786f9 100644 --- a/tests/ui/unpretty/exhaustive.expanded.stdout +++ b/tests/ui/unpretty/exhaustive.expanded.stdout @@ -13,6 +13,7 @@ #![feature(box_patterns)] #![feature(builtin_syntax)] #![feature(const_trait_impl)] +#![feature(coroutines)] #![feature(decl_macro)] #![feature(deref_patterns)] #![feature(explicit_tail_calls)] diff --git a/tests/ui/unpretty/exhaustive.hir.stderr b/tests/ui/unpretty/exhaustive.hir.stderr index aa411ce81eb..eb5c186bd2c 100644 --- a/tests/ui/unpretty/exhaustive.hir.stderr +++ b/tests/ui/unpretty/exhaustive.hir.stderr @@ -1,17 +1,17 @@ error[E0697]: closures cannot be static - --> $DIR/exhaustive.rs:209:9 + --> $DIR/exhaustive.rs:210:9 | LL | static || value; | ^^^^^^^^^ error[E0697]: closures cannot be static - --> $DIR/exhaustive.rs:210:9 + --> $DIR/exhaustive.rs:211:9 | LL | static move || value; | ^^^^^^^^^^^^^^ error[E0728]: `await` is only allowed inside `async` functions and blocks - --> $DIR/exhaustive.rs:239:13 + --> $DIR/exhaustive.rs:240:13 | LL | fn expr_await() { | --------------- this is not `async` @@ -20,19 +20,19 @@ LL | fut.await; | ^^^^^ only allowed inside `async` functions and blocks error: in expressions, `_` can only be used on the left-hand side of an assignment - --> $DIR/exhaustive.rs:288:9 + --> $DIR/exhaustive.rs:289:9 | LL | _; | ^ `_` not allowed here error[E0214]: parenthesized type parameters may only be used with a `Fn` trait - --> $DIR/exhaustive.rs:298:9 + --> $DIR/exhaustive.rs:299:9 | LL | x::(); | ^^^^^ only `Fn` traits may use parentheses error[E0214]: parenthesized type parameters may only be used with a `Fn` trait - --> $DIR/exhaustive.rs:299:9 + --> $DIR/exhaustive.rs:300:9 | LL | x::(T, T) -> T; | ^^^^^^^^^^^^^^ only `Fn` traits may use parentheses @@ -44,31 +44,31 @@ LL + x::<T, T> -> T; | error[E0214]: parenthesized type parameters may only be used with a `Fn` trait - --> $DIR/exhaustive.rs:300:9 + --> $DIR/exhaustive.rs:301:9 | LL | crate::() -> ()::expressions::() -> ()::expr_path; | ^^^^^^^^^^^^^^^ only `Fn` traits may use parentheses error[E0214]: parenthesized type parameters may only be used with a `Fn` trait - --> $DIR/exhaustive.rs:300:26 + --> $DIR/exhaustive.rs:301:26 | LL | crate::() -> ()::expressions::() -> ()::expr_path; | ^^^^^^^^^^^^^^^^^^^^^ only `Fn` traits may use parentheses error[E0214]: parenthesized type parameters may only be used with a `Fn` trait - --> $DIR/exhaustive.rs:303:9 + --> $DIR/exhaustive.rs:304:9 | LL | core::()::marker::()::PhantomData; | ^^^^^^^^ only `Fn` traits may use parentheses error[E0214]: parenthesized type parameters may only be used with a `Fn` trait - --> $DIR/exhaustive.rs:303:19 + --> $DIR/exhaustive.rs:304:19 | LL | core::()::marker::()::PhantomData; | ^^^^^^^^^^ only `Fn` traits may use parentheses error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks - --> $DIR/exhaustive.rs:390:9 + --> $DIR/exhaustive.rs:391:9 | LL | yield; | ^^^^^ @@ -79,7 +79,7 @@ LL | #[coroutine] fn expr_yield() { | ++++++++++++ error[E0703]: invalid ABI: found `C++` - --> $DIR/exhaustive.rs:470:23 + --> $DIR/exhaustive.rs:471:23 | LL | unsafe extern "C++" {} | ^^^^^ invalid ABI @@ -87,7 +87,7 @@ LL | unsafe extern "C++" {} = note: invoke `rustc --print=calling-conventions` for a full list of supported calling conventions error: `..` patterns are not allowed here - --> $DIR/exhaustive.rs:677:13 + --> $DIR/exhaustive.rs:678:13 | LL | let ..; | ^^ @@ -95,13 +95,13 @@ LL | let ..; = note: only allowed in tuple, tuple struct, and slice patterns error[E0214]: parenthesized type parameters may only be used with a `Fn` trait - --> $DIR/exhaustive.rs:792:16 + --> $DIR/exhaustive.rs:793:16 | LL | let _: T() -> !; | ^^^^^^^^ only `Fn` traits may use parentheses error[E0562]: `impl Trait` is not allowed in the type of variable bindings - --> $DIR/exhaustive.rs:806:16 + --> $DIR/exhaustive.rs:807:16 | LL | let _: impl Send; | ^^^^^^^^^ @@ -112,7 +112,7 @@ LL | let _: impl Send; = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0562]: `impl Trait` is not allowed in the type of variable bindings - --> $DIR/exhaustive.rs:807:16 + --> $DIR/exhaustive.rs:808:16 | LL | let _: impl Send + 'static; | ^^^^^^^^^^^^^^^^^^^ @@ -123,7 +123,7 @@ LL | let _: impl Send + 'static; = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0562]: `impl Trait` is not allowed in the type of variable bindings - --> $DIR/exhaustive.rs:808:16 + --> $DIR/exhaustive.rs:809:16 | LL | let _: impl 'static + Send; | ^^^^^^^^^^^^^^^^^^^ @@ -134,7 +134,7 @@ LL | let _: impl 'static + Send; = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0562]: `impl Trait` is not allowed in the type of variable bindings - --> $DIR/exhaustive.rs:809:16 + --> $DIR/exhaustive.rs:810:16 | LL | let _: impl ?Sized; | ^^^^^^^^^^^ @@ -145,7 +145,7 @@ LL | let _: impl ?Sized; = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0562]: `impl Trait` is not allowed in the type of variable bindings - --> $DIR/exhaustive.rs:810:16 + --> $DIR/exhaustive.rs:811:16 | LL | let _: impl [const] Clone; | ^^^^^^^^^^^^^^^^^^ @@ -156,7 +156,7 @@ LL | let _: impl [const] Clone; = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0562]: `impl Trait` is not allowed in the type of variable bindings - --> $DIR/exhaustive.rs:811:16 + --> $DIR/exhaustive.rs:812:16 | LL | let _: impl for<'a> Send; | ^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/unpretty/exhaustive.hir.stdout b/tests/ui/unpretty/exhaustive.hir.stdout index 68356a33c9e..924fb98ae18 100644 --- a/tests/ui/unpretty/exhaustive.hir.stdout +++ b/tests/ui/unpretty/exhaustive.hir.stdout @@ -12,6 +12,7 @@ #![feature(box_patterns)] #![feature(builtin_syntax)] #![feature(const_trait_impl)] +#![feature(coroutines)] #![feature(decl_macro)] #![feature(deref_patterns)] #![feature(explicit_tail_calls)] diff --git a/tests/ui/unpretty/exhaustive.rs b/tests/ui/unpretty/exhaustive.rs index b19d4f9fe2c..0983a0a7e43 100644 --- a/tests/ui/unpretty/exhaustive.rs +++ b/tests/ui/unpretty/exhaustive.rs @@ -12,6 +12,7 @@ #![feature(box_patterns)] #![feature(builtin_syntax)] #![feature(const_trait_impl)] +#![feature(coroutines)] #![feature(decl_macro)] #![feature(deref_patterns)] #![feature(explicit_tail_calls)] diff --git a/tests/ui/unsafe-fields/auto-traits.current.stderr b/tests/ui/unsafe-fields/auto-traits.current.stderr index 53a97458b7c..2483556b139 100644 --- a/tests/ui/unsafe-fields/auto-traits.current.stderr +++ b/tests/ui/unsafe-fields/auto-traits.current.stderr @@ -2,10 +2,15 @@ error[E0277]: the trait bound `UnsafeEnum: UnsafeAuto` is not satisfied --> $DIR/auto-traits.rs:24:22 | LL | impl_unsafe_auto(UnsafeEnum::Safe(42)); - | ---------------- ^^^^^^^^^^^^^^^^^^^^ the trait `UnsafeAuto` is not implemented for `UnsafeEnum` + | ---------------- ^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `UnsafeAuto` is not implemented for `UnsafeEnum` + --> $DIR/auto-traits.rs:9:1 + | +LL | enum UnsafeEnum { + | ^^^^^^^^^^^^^^^ note: required by a bound in `impl_unsafe_auto` --> $DIR/auto-traits.rs:20:29 | diff --git a/tests/ui/unsafe-fields/auto-traits.next.stderr b/tests/ui/unsafe-fields/auto-traits.next.stderr index 53a97458b7c..2483556b139 100644 --- a/tests/ui/unsafe-fields/auto-traits.next.stderr +++ b/tests/ui/unsafe-fields/auto-traits.next.stderr @@ -2,10 +2,15 @@ error[E0277]: the trait bound `UnsafeEnum: UnsafeAuto` is not satisfied --> $DIR/auto-traits.rs:24:22 | LL | impl_unsafe_auto(UnsafeEnum::Safe(42)); - | ---------------- ^^^^^^^^^^^^^^^^^^^^ the trait `UnsafeAuto` is not implemented for `UnsafeEnum` + | ---------------- ^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | | | required by a bound introduced by this call | +help: the trait `UnsafeAuto` is not implemented for `UnsafeEnum` + --> $DIR/auto-traits.rs:9:1 + | +LL | enum UnsafeEnum { + | ^^^^^^^^^^^^^^^ note: required by a bound in `impl_unsafe_auto` --> $DIR/auto-traits.rs:20:29 | diff --git a/tests/ui/unsafe/edition-2024-unsafe_op_in_unsafe_fn.stderr b/tests/ui/unsafe/edition-2024-unsafe_op_in_unsafe_fn.stderr index 8a26b45117c..b6804511ac2 100644 --- a/tests/ui/unsafe/edition-2024-unsafe_op_in_unsafe_fn.stderr +++ b/tests/ui/unsafe/edition-2024-unsafe_op_in_unsafe_fn.stderr @@ -11,7 +11,7 @@ note: an unsafe function restricts its caller, but its body is safe by default | LL | unsafe fn foo() { | ^^^^^^^^^^^^^^^ - = note: `#[warn(unsafe_op_in_unsafe_fn)]` on by default + = note: `#[warn(unsafe_op_in_unsafe_fn)]` (part of `#[warn(rust_2024_compatibility)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/unsafe/unsafe_op_in_unsafe_fn/edition_2024_default.stderr b/tests/ui/unsafe/unsafe_op_in_unsafe_fn/edition_2024_default.stderr index 458a2180a82..35f9d3a4ebc 100644 --- a/tests/ui/unsafe/unsafe_op_in_unsafe_fn/edition_2024_default.stderr +++ b/tests/ui/unsafe/unsafe_op_in_unsafe_fn/edition_2024_default.stderr @@ -11,7 +11,7 @@ note: an unsafe function restricts its caller, but its body is safe by default | LL | unsafe fn foo() { | ^^^^^^^^^^^^^^^ - = note: `#[warn(unsafe_op_in_unsafe_fn)]` on by default + = note: `#[warn(unsafe_op_in_unsafe_fn)]` (part of `#[warn(rust_2024_compatibility)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/unsized/issue-75707.stderr b/tests/ui/unsized/issue-75707.stderr index f5f2f7192aa..7bdb65500a9 100644 --- a/tests/ui/unsized/issue-75707.stderr +++ b/tests/ui/unsized/issue-75707.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `MyCall: Callback` is not satisfied --> $DIR/issue-75707.rs:15:9 | LL | f::<dyn Processing<Call = MyCall>>(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Callback` is not implemented for `MyCall` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | +help: the trait `Callback` is not implemented for `MyCall` + --> $DIR/issue-75707.rs:14:5 + | +LL | struct MyCall; + | ^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/issue-75707.rs:1:1 | diff --git a/tests/ui/unstable-feature-bound/unstable_inherent_method.stderr b/tests/ui/unstable-feature-bound/unstable_inherent_method.stderr index 2a1ae936cfe..3438e84079d 100644 --- a/tests/ui/unstable-feature-bound/unstable_inherent_method.stderr +++ b/tests/ui/unstable-feature-bound/unstable_inherent_method.stderr @@ -4,7 +4,7 @@ error: `#[unstable_feature_bound]` attribute cannot be used on required trait me LL | #[unstable_feature_bound(foo)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: `#[unstable_feature_bound]` can be applied to functions, trait impl blocks, traits + = help: `#[unstable_feature_bound]` can be applied to functions, trait impl blocks, and traits error: `#[unstable_feature_bound]` attribute cannot be used on trait methods in impl blocks --> $DIR/unstable_inherent_method.rs:18:5 @@ -12,7 +12,7 @@ error: `#[unstable_feature_bound]` attribute cannot be used on trait methods in LL | #[unstable_feature_bound(foo)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: `#[unstable_feature_bound]` can be applied to functions, trait impl blocks, traits + = help: `#[unstable_feature_bound]` can be applied to functions, trait impl blocks, and traits error: aborting due to 2 previous errors diff --git a/tests/ui/wf/hir-wf-canonicalized.stderr b/tests/ui/wf/hir-wf-canonicalized.stderr index 8938801ce3d..51db0e39de0 100644 --- a/tests/ui/wf/hir-wf-canonicalized.stderr +++ b/tests/ui/wf/hir-wf-canonicalized.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `Bar<'a, T>: Foo` is not satisfied --> $DIR/hir-wf-canonicalized.rs:10:15 | LL | callback: Box<dyn Callback<dyn Callback<Bar<'a, T>>>>, - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Foo` is not implemented for `Bar<'a, T>` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | +help: the trait `Foo` is not implemented for `Bar<'a, T>` + --> $DIR/hir-wf-canonicalized.rs:9:1 + | +LL | struct Bar<'a, T> { + | ^^^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/hir-wf-canonicalized.rs:3:1 | diff --git a/tests/ui/wf/ice-hir-wf-check-anon-const-issue-122989.stderr b/tests/ui/wf/ice-hir-wf-check-anon-const-issue-122989.stderr index 26872f60fd3..a0b443ec850 100644 --- a/tests/ui/wf/ice-hir-wf-check-anon-const-issue-122989.stderr +++ b/tests/ui/wf/ice-hir-wf-check-anon-const-issue-122989.stderr @@ -6,7 +6,7 @@ LL | trait Foo<const N: Bar<2>> { | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` on by default + = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default help: if this is a dyn-compatible trait, use `dyn` | LL | trait Foo<const N: dyn Bar<2>> { diff --git a/tests/ui/wf/wf-packed-on-proj-of-type-as-unimpl-trait.stderr b/tests/ui/wf/wf-packed-on-proj-of-type-as-unimpl-trait.stderr index 8e3088c6f4a..3d066487654 100644 --- a/tests/ui/wf/wf-packed-on-proj-of-type-as-unimpl-trait.stderr +++ b/tests/ui/wf/wf-packed-on-proj-of-type-as-unimpl-trait.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `DefaultAllocator: Allocator` is not satisfied --> $DIR/wf-packed-on-proj-of-type-as-unimpl-trait.rs:28:12 | LL | struct Foo(Matrix<<DefaultAllocator as Allocator>::Buffer>); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Allocator` is not implemented for `DefaultAllocator` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | +help: the trait `Allocator` is not implemented for `DefaultAllocator` + --> $DIR/wf-packed-on-proj-of-type-as-unimpl-trait.rs:21:1 + | +LL | pub struct DefaultAllocator; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/wf-packed-on-proj-of-type-as-unimpl-trait.rs:23:1 | diff --git a/tests/ui/where-clauses/unsupported_attribute.stderr b/tests/ui/where-clauses/unsupported_attribute.stderr index cdd6e82b98d..42a8a1350d2 100644 --- a/tests/ui/where-clauses/unsupported_attribute.stderr +++ b/tests/ui/where-clauses/unsupported_attribute.stderr @@ -48,7 +48,7 @@ error: `#[macro_use]` attribute cannot be used on where predicates LL | #[macro_use] T: Trait, | ^^^^^^^^^^^^ | - = help: `#[macro_use]` can be applied to modules, extern crates, crates + = help: `#[macro_use]` can be applied to modules, extern crates, and crates error: `#[macro_use]` attribute cannot be used on where predicates --> $DIR/unsupported_attribute.rs:21:5 @@ -56,7 +56,7 @@ error: `#[macro_use]` attribute cannot be used on where predicates LL | #[macro_use] 'a: 'static, | ^^^^^^^^^^^^ | - = help: `#[macro_use]` can be applied to modules, extern crates, crates + = help: `#[macro_use]` can be applied to modules, extern crates, and crates error: `#[deprecated]` attribute cannot be used on where predicates --> $DIR/unsupported_attribute.rs:24:5 @@ -64,7 +64,7 @@ error: `#[deprecated]` attribute cannot be used on where predicates LL | #[deprecated] T: Trait, | ^^^^^^^^^^^^^ | - = help: `#[deprecated]` can be applied to functions, data types, modules, unions, constants, statics, macro defs, type aliases, use statements, foreign statics, struct fields, traits, associated types, associated consts, enum variants, inherent impl blocks, crates + = help: `#[deprecated]` can be applied to functions, data types, modules, unions, constants, statics, macro defs, type aliases, use statements, foreign statics, struct fields, traits, associated types, associated consts, enum variants, inherent impl blocks, and crates error: `#[deprecated]` attribute cannot be used on where predicates --> $DIR/unsupported_attribute.rs:25:5 @@ -72,7 +72,7 @@ error: `#[deprecated]` attribute cannot be used on where predicates LL | #[deprecated] 'a: 'static, | ^^^^^^^^^^^^^ | - = help: `#[deprecated]` can be applied to functions, data types, modules, unions, constants, statics, macro defs, type aliases, use statements, foreign statics, struct fields, traits, associated types, associated consts, enum variants, inherent impl blocks, crates + = help: `#[deprecated]` can be applied to functions, data types, modules, unions, constants, statics, macro defs, type aliases, use statements, foreign statics, struct fields, traits, associated types, associated consts, enum variants, inherent impl blocks, and crates error: `#[automatically_derived]` attribute cannot be used on where predicates --> $DIR/unsupported_attribute.rs:26:5 diff --git a/tests/ui/where-clauses/where-clause-early-bound-lifetimes.stderr b/tests/ui/where-clauses/where-clause-early-bound-lifetimes.stderr index 34ed8bd2146..ebe609af38a 100644 --- a/tests/ui/where-clauses/where-clause-early-bound-lifetimes.stderr +++ b/tests/ui/where-clauses/where-clause-early-bound-lifetimes.stderr @@ -6,7 +6,7 @@ LL | trait TheTrait { fn dummy(&self) { } } | | | method in this trait | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/where-clauses/where-clause-method-substituion-rpass.stderr b/tests/ui/where-clauses/where-clause-method-substituion-rpass.stderr index 9a8faf7a64e..5161e2aabc1 100644 --- a/tests/ui/where-clauses/where-clause-method-substituion-rpass.stderr +++ b/tests/ui/where-clauses/where-clause-method-substituion-rpass.stderr @@ -6,7 +6,7 @@ LL | trait Foo<T> { fn dummy(&self, arg: T) { } } | | | method in this trait | - = note: `#[warn(dead_code)]` on by default + = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default warning: 1 warning emitted diff --git a/tests/ui/where-clauses/where-clause-method-substituion.stderr b/tests/ui/where-clauses/where-clause-method-substituion.stderr index 1a1d9c13ab8..73aac3d54a3 100644 --- a/tests/ui/where-clauses/where-clause-method-substituion.stderr +++ b/tests/ui/where-clauses/where-clause-method-substituion.stderr @@ -2,8 +2,13 @@ error[E0277]: the trait bound `X: Foo<X>` is not satisfied --> $DIR/where-clause-method-substituion.rs:20:16 | LL | 1.method::<X>(); - | ^ the trait `Foo<X>` is not implemented for `X` + | ^ unsatisfied trait bound | +help: the trait `Foo<X>` is not implemented for `X` + --> $DIR/where-clause-method-substituion.rs:10:1 + | +LL | struct X; + | ^^^^^^^^ help: this trait has no implementations, consider adding one --> $DIR/where-clause-method-substituion.rs:1:1 | diff --git a/triagebot.toml b/triagebot.toml index 777ef928e5d..3b7b216c0d2 100644 --- a/triagebot.toml +++ b/triagebot.toml @@ -1003,11 +1003,12 @@ cc = ["@calebzulawski", "@programmerjake"] [mentions."library/core/src/unicode/unicode_data.rs"] message = """ -`library/core/src/unicode/unicode_data.rs` is generated by -`src/tools/unicode-table-generator` via `./x run -src/tools/unicode-table-generator`. If you want to modify `unicode_data.rs`, -please modify the tool then regenerate the library source file with the tool -instead of editing the library source file manually. +`library/core/src/unicode/unicode_data.rs` is generated by the \ +`src/tools/unicode-table-generator` tool. + +If you want to modify `unicode_data.rs`, please modify the tool then regenerate the library \ +source file via `./x run src/tools/unicode-table-generator` instead of editing \ +`unicode_data.rs` manually. """ [mentions."src/librustdoc/html/static"] @@ -1070,7 +1071,7 @@ cc = ["@rust-lang/rustfmt"] [mentions."compiler/rustc_middle/src/mir/syntax.rs"] message = "This PR changes MIR" -cc = ["@oli-obk", "@RalfJung", "@JakobDegen", "@davidtwco", "@vakaras"] +cc = ["@oli-obk", "@RalfJung", "@JakobDegen", "@vakaras"] [mentions."compiler/rustc_error_messages"] message = "`rustc_error_messages` was changed" @@ -1404,7 +1405,6 @@ arena = [ "@spastorino", ] mir = [ - "@davidtwco", "@oli-obk", "@matthewjasper", "@saethlin", @@ -1438,9 +1438,8 @@ fallback = [ ] style-team = [ "@calebcartwright", - "@compiler-errors", "@joshtriplett", - "@yaahc", + "@traviscross", ] project-const-traits = [ "@compiler-errors", @@ -1591,6 +1590,8 @@ days-threshold = 28 # Prevents mentions in commits to avoid users being spammed # Documentation at: https://forge.rust-lang.org/triagebot/no-mentions.html [no-mentions] +# Subtree update authors can't fix it, no point in warning. +exclude-titles = ["subtree update"] # Allow members to formally register concerns (`@rustbot concern my concern`) # Documentation at: https://forge.rust-lang.org/triagebot/concern.html @@ -1601,3 +1602,8 @@ labels = ["S-waiting-on-concerns"] # onto a different base commit # Documentation at: https://forge.rust-lang.org/triagebot/range-diff.html [range-diff] + +# Adds at the end of a review body a link to view the changes that happened +# since the review +# Documentation at: https://forge.rust-lang.org/triagebot/review-changes-since.html +[review-changes-since] diff --git a/typos.toml b/typos.toml index 317aafc8615..b0ff48f8fa2 100644 --- a/typos.toml +++ b/typos.toml @@ -33,6 +33,7 @@ misformed = "misformed" targetting = "targetting" publically = "publically" clonable = "clonable" +moreso = "moreso" # this can be valid word, depends on dictionary edition #matcheable = "matcheable" |
