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resolve: Cleanups and micro-optimizations to extern prelude
This is what can be done without changing the structure of `ExternPreludeEntry`, like in https://github.com/rust-lang/rust/pull/144737.
See individual commits for details.
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Now that it only contains indexes, and no other information, a bitset
provides a more compact and simpler representation.
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rust-lang/rust@23032f31c91f2 accidentally introduced some nondeterminism
in the ordering of lib.rmeta files, which we caught in our bazel-based
builds only recently due to being further behind than normal. In my
testing, this fixes the issue.
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Revert <https://github.com/rust-lang/rust/pull/138084> to buy time to
consider options that avoids breaking downstream usages of cargo on
distributed `rustc-src` artifacts, where such cargo invocations fail due
to inability to inherit `lints` from workspace root manifest's
`workspace.lints` (this is only valid for the source rust-lang/rust
workspace, but not really the distributed `rustc-src` artifacts).
This breakage was reported in
<https://github.com/rust-lang/rust/issues/138304>.
This reverts commit 48caf81484b50dca5a5cebb614899a3df81ca898, reversing
changes made to c6662879b27f5161e95f39395e3c9513a7b97028.
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By naming them in `[workspace.lints.rust]` in the top-level
`Cargo.toml`, and then making all `compiler/` crates inherit them with
`[lints] workspace = true`. (I omitted `rustc_codegen_{cranelift,gcc}`,
because they're a bit different.)
The advantages of this over the current approach:
- It uses a standard Cargo feature, rather than special handling in
bootstrap. So, easier to understand, and less likely to get
accidentally broken in the future.
- It works for proc macro crates.
It's a shame it doesn't work for rustc-specific lints, as the comments
explain.
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This involves lots of breaking changes. There are two big changes that
force changes. The first is that the bitflag types now don't
automatically implement normal derive traits, so we need to derive them
manually.
Additionally, bitflags now have a hidden inner type by default, which
breaks our custom derives. The bitflags docs recommend using the impl
form in these cases, which I did.
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- Sort dependencies and features sections.
- Add `tidy` markers to the sorted sections so they stay sorted.
- Remove empty `[lib`] sections.
- Remove "See more keys..." comments.
Excluded files:
- rustc_codegen_{cranelift,gcc}, because they're external.
- rustc_lexer, because it has external use.
- stable_mir, because it has external use.
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Fluent, with all the icu4x it brings in, takes quite some time to
compile. `fluent_messages!` is only needed in further downstream rustc
crates, but is blocking more upstream crates like `rustc_index`. By
splitting it out, we allow `rustc_macros` to be compiled earlier, which
speeds up `x check compiler` by about 5 seconds (and even more after the
needless dependency on `serde_json` is removed from
`rustc_data_structures`).
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Because 0.2.10 added supports for `ThinVec::splice`, and 0.2.12 is the
latest release.
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This commit implements MCP https://github.com/rust-lang/compiler-team/issues/584
It also removes code that is no longer used, and that includes code cloning resolver, so issue #83761 is fixed.
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Rollup of 8 pull requests
Successful merges:
- #101162 (Migrate rustc_resolve to use SessionDiagnostic, part # 1)
- #103386 (Don't allow `CoerceUnsized` into `dyn*` (except for trait upcasting))
- #103405 (Detect incorrect chaining of if and if let conditions and recover)
- #103594 (Fix non-associativity of `Instant` math on `aarch64-apple-darwin` targets)
- #104006 (Add variant_name function to `LangItem`)
- #104494 (Migrate GUI test to use functions)
- #104516 (rustdoc: clean up sidebar width CSS)
- #104550 (fix a typo)
Failed merges:
- #104554 (Use `ErrorGuaranteed::unchecked_claim_error_was_emitted` less)
r? `@ghost`
`@rustbot` modify labels: rollup
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implement binding_shadows
migrate till self-in-generic-param-default
use braces in fluent message as suggested by @compiler-errors.
to fix lock file issue reported by CI
migrate 'unreachable label' error
run formatter
name the variables correctly in fluent file
SessionDiagnostic -> Diagnostic
test "pattern/pat-tuple-field-count-cross.rs" passed
test "resolve/bad-env-capture2.rs" passed
test "enum/enum-in-scope.rs" and other depended on "resolve_binding_shadows_something_unacceptable" should be passed now.
fix crash errors while running test-suite. there might be more.
then_some(..) suits better here.
all tests passed
convert TraitImpl and InvalidAsm. TraitImpl is buggy yet. will fix after receiving help from Zulip
migrate "Ralative-2018"
migrate "ancestor only"
migrate "expected found"
migrate "Indeterminate"
migrate "module only"
revert to the older implementation for now. since this is failing at the moment.
follow the convension for fluent variable
order the diag attribute as suggested in review comment
fix merge error. migrate trait-impl-duplicate
make the changes compatible with "Flatten diagnostic slug modules #103345"
fix merge
remove commented code
merge issues
fix review comments
fix tests
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This pulls in https://github.com/servo/rust-smallvec/pull/282, which
gives some small wins for rustc.
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Since RFC 3052 soft deprecated the authors field anyway, hiding it from
crates.io, docs.rs, and making Cargo not add it by default, and it is
not generally up to date/useful information, we should remove it from
crates in this repo.
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