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2023-12-04subtyping_projectionsouz-a-1/+2
2023-11-09rename `BorrowKind::Shallow` to `Fake`lcnr-5/+5
also adds some comments (cherry picked from commit 992d93f687c75f8f5ee69e0fb43bff509c7c9cb8)
2023-09-27fix clippy::{redundant_guards, useless_format}Matthias Krüger-3/+1
2023-09-27Auto merge of #115887 - RalfJung:pat, r=oli-obkbors-11/+17
thir::pattern: update some comments and error type names Follow-up to [these comments](https://github.com/rust-lang/rust/pull/105750#pullrequestreview-1629697578). Please carefully fact-check, I'm new to this area of the compiler!
2023-09-27Auto merge of #116163 - compiler-errors:lazyness, r=oli-obkbors-1/+1
Don't store lazyness in `DefKind::TyAlias` 1. Don't store lazyness of a type alias in its `DefKind`, but instead via a query. 2. This allows us to treat type aliases as lazy if `#[feature(lazy_type_alias)]` *OR* if the alias contains a TAIT, rather than having checks for both in separate parts of the codebase. r? `@oli-obk` cc `@fmease`
2023-09-26Don't store lazyness in DefKindMichael Goulet-1/+1
2023-09-25rename lint; add tracking issueRalf Jung-1/+1
2023-09-24use a must_hold variant for checking PartialEqRalf Jung-5/+10
2023-09-24make sure we always emit the no-PartialEq lint, even if there were other lintsRalf Jung-13/+17
2023-09-24work towards rejecting consts in patterns that do not implement PartialEqRalf Jung-2/+18
2023-09-21Rollup merge of #115972 - RalfJung:const-consistency, r=oli-obkGuillaume Gomez-133/+124
rename mir::Constant -> mir::ConstOperand, mir::ConstKind -> mir::Const Also, be more consistent with the `to/eval_bits` methods... we had some that take a type and some that take a size, and then sometimes the one that takes a type is called `bits_for_ty`. Turns out that `ty::Const`/`mir::ConstKind` carry their type with them, so we don't need to even pass the type to those `eval_bits` functions at all. However this is not properly consistent yet: in `ty` we have most of the methods on `ty::Const`, but in `mir` we have them on `mir::ConstKind`. And indeed those two types are the ones that correspond to each other. So `mir::ConstantKind` should actually be renamed to `mir::Const`. But what to do with `mir::Constant`? It carries around a span, that's really more like a constant operand that appears as a MIR operand... it's more suited for `syntax.rs` than `consts.rs`, but the bigger question is, which name should it get if we want to align the `mir` and `ty` types? `ConstOperand`? `ConstOp`? `Literal`? It's not a literal but it has a field called `literal` so it would at least be consistently wrong-ish... ``@oli-obk`` any ideas?
2023-09-21Prevent promotion of const fn calls in inline constsOli Scherer-2/+2
2023-09-21rename mir::Constant -> mir::ConstOperand, mir::ConstKind -> mir::ConstRalf Jung-117/+111
2023-09-20the Const::eval_bits methods don't need to be given the TyRalf Jung-17/+14
2023-09-19adjust constValue::Slice to work for arbitrary slice typesRalf Jung-3/+3
2023-09-19move ConstValue into mirRalf Jung-8/+5
this way we have mir::ConstValue and ty::ValTree as reasonably parallel
2023-09-18better ICE than sorryRalf Jung-0/+3
2023-09-16thir::pattern: update some comments and error type namesRalf Jung-11/+14
2023-09-14move required_consts check to general post-mono-check functionRalf Jung-4/+4
2023-09-14make it more clear which functions create fresh AllocIdRalf Jung-1/+1
2023-09-13make the set of methods between our two Const types more consistentRalf Jung-2/+2
2023-09-13make the eval() functions on our const types return the resulting valueRalf Jung-0/+2
2023-09-05Refactor how MIR represents composite debuginfo.Camille GILLOT-0/+5
2023-09-05Rollup merge of #115540 - cjgillot:custom-debuginfo, r=oli-obkMatthias Krüger-2/+57
Support debuginfo for custom MIR.
2023-09-03Auto merge of #115270 - sebastiantoh:issue-105479, r=Nadrierilbors-37/+39
Add note on non-exhaustiveness when matching on str and nested non-exhaustive enums Fixes https://github.com/rust-lang/rust/issues/105479 r? `@Nadrieril`
2023-09-03Improve clarity of diagnostic message on non-exhaustive matchesSebastian Toh-2/+2
2023-09-03Fix code that now emits unused doc comment warning for expr fieldGurinder Singh-2/+2
2023-09-01Support debuginfo for custom MIR.Camille GILLOT-2/+57
2023-08-30use if only on lhs of binary logical exprsDing Xiang Fei-16/+18
2023-08-30lower bare boolean expression with if-constructDing Xiang Fei-39/+29
2023-08-30lower ExprKind::Use, LogicalOp::Or and UnOp::NotDing Xiang Fei-0/+44
Co-authored-by: Abdulaziz Ghuloum <aghuloum@gmail.com>
2023-08-28Add note when matching on nested non-exhaustive enumsSebastian Toh-31/+29
2023-08-28Add note that str cannot be matched exhaustivelySebastian Toh-6/+10
2023-08-25Auto merge of #115045 - RalfJung:unwind-terminate-reason, r=davidtwcobors-3/+3
when terminating during unwinding, show the reason why With this, the output on double-panic becomes something like that: ``` thread 'main' panicked at src/tools/miri/tests/fail/panic/double_panic.rs:15:5: first note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace thread 'main' panicked at src/tools/miri/tests/fail/panic/double_panic.rs:10:9: second stack backtrace: 0: 0xbe273a - std::backtrace_rs::backtrace::miri::trace_unsynchronized::<&mut [closure@std::sys_common::backtrace::_print_fmt::{closure#1}]> at /home/r/src/rust/rustc.3/library/std/src/../../backtrace/src/backtrace/miri.rs:99:5 1: 0xbe22e6 - std::backtrace_rs::backtrace::miri::trace::<&mut [closure@std::sys_common::backtrace::_print_fmt::{closure#1}]> at /home/r/src/rust/rustc.3/library/std/src/../../backtrace/src/backtrace/miri.rs:62:14 2: 0xbe1086 - std::backtrace_rs::backtrace::trace_unsynchronized::<[closure@std::sys_common::backtrace::_print_fmt::{closure#1}]> at /home/r/src/rust/rustc.3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 3: 0xba3afd - std::sys_common::backtrace::_print_fmt at /home/r/src/rust/rustc.3/library/std/src/sys_common/backtrace.rs:67:5 4: 0xba2471 - <std::sys_common::backtrace::_print::DisplayBacktrace as std::fmt::Display>::fmt at /home/r/src/rust/rustc.3/library/std/src/sys_common/backtrace.rs:44:22 5: 0xbcf754 - core::fmt::rt::Argument::<'_>::fmt at /home/r/src/rust/rustc.3/library/core/src/fmt/rt.rs:138:9 6: 0x9b8f81 - std::fmt::write at /home/r/src/rust/rustc.3/library/core/src/fmt/mod.rs:1094:17 7: 0x21391d - <std::sys::unix::stdio::Stderr as std::io::Write>::write_fmt at /home/r/src/rust/rustc.3/library/std/src/io/mod.rs:1714:15 8: 0xba37b1 - std::sys_common::backtrace::_print at /home/r/src/rust/rustc.3/library/std/src/sys_common/backtrace.rs:47:5 9: 0xba365b - std::sys_common::backtrace::print at /home/r/src/rust/rustc.3/library/std/src/sys_common/backtrace.rs:34:9 10: 0x143c67 - std::panic_hook_with_disk_dump::{closure#1} at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:278:22 11: 0x144187 - std::panic_hook_with_disk_dump at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:312:9 12: 0x143659 - std::panicking::default_hook at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:239:5 13: 0x1482a7 - std::panicking::rust_panic_with_hook at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:729:13 14: 0x1475d5 - std::rt::begin_panic::<&str>::{closure#0} at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:650:9 15: 0xba496a - std::sys_common::backtrace::__rust_end_short_backtrace::<[closure@std::rt::begin_panic<&str>::{closure#0}], !> at /home/r/src/rust/rustc.3/library/std/src/sys_common/backtrace.rs:170:18 16: 0x147599 - std::rt::begin_panic::<&str> at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:649:12 17: 0x31916 - <Foo as std::ops::Drop>::drop at src/tools/miri/tests/fail/panic/double_panic.rs:10:9 18: 0x1a2b5e - std::ptr::drop_in_place::<Foo> - shim(Some(Foo)) at /home/r/src/rust/rustc.3/library/core/src/ptr/mod.rs:497:1 19: 0x202bf - main at src/tools/miri/tests/fail/panic/double_panic.rs:16:1 20: 0xcc6a8 - <fn() as std::ops::FnOnce<()>>::call_once - shim(fn()) at /home/r/src/rust/rustc.3/library/core/src/ops/function.rs:250:5 21: 0xba47d9 - std::sys_common::backtrace::__rust_begin_short_backtrace::<fn(), ()> at /home/r/src/rust/rustc.3/library/std/src/sys_common/backtrace.rs:154:18 22: 0x141a6a - std::rt::lang_start::<()>::{closure#0} at /home/r/src/rust/rustc.3/library/std/src/rt.rs:166:18 23: 0xcca18 - std::ops::function::impls::<impl std::ops::FnOnce<()> for &dyn std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe>::call_once at /home/r/src/rust/rustc.3/library/core/src/ops/function.rs:284:13 24: 0x146469 - std::panicking::try::do_call::<&dyn std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe, i32> at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:524:40 25: 0x145e09 - std::panicking::try::<i32, &dyn std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe> at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:488:19 26: 0x7b0ac - std::panic::catch_unwind::<&dyn std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe, i32> at /home/r/src/rust/rustc.3/library/std/src/panic.rs:142:14 27: 0x14189b - std::rt::lang_start_internal::{closure#2} at /home/r/src/rust/rustc.3/library/std/src/rt.rs:148:48 28: 0x146481 - std::panicking::try::do_call::<[closure@std::rt::lang_start_internal::{closure#2}], isize> at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:524:40 29: 0x145e2c - std::panicking::try::<isize, [closure@std::rt::lang_start_internal::{closure#2}]> at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:488:19 30: 0x7b0d5 - std::panic::catch_unwind::<[closure@std::rt::lang_start_internal::{closure#2}], isize> at /home/r/src/rust/rustc.3/library/std/src/panic.rs:142:14 31: 0x1418b0 - std::rt::lang_start_internal at /home/r/src/rust/rustc.3/library/std/src/rt.rs:148:20 32: 0x141a97 - std::rt::lang_start::<()> at /home/r/src/rust/rustc.3/library/std/src/rt.rs:165:17 thread 'main' panicked at /home/r/src/rust/rustc.3/library/core/src/panicking.rs:126:5: panic in a destructor during cleanup stack backtrace: 0: 0xe9f6d7 - std::backtrace_rs::backtrace::miri::trace_unsynchronized::<&mut [closure@std::sys_common::backtrace::_print_fmt::{closure#1}]> at /home/r/src/rust/rustc.3/library/std/src/../../backtrace/src/backtrace/miri.rs:99:5 1: 0xe9f27d - std::backtrace_rs::backtrace::miri::trace::<&mut [closure@std::sys_common::backtrace::_print_fmt::{closure#1}]> at /home/r/src/rust/rustc.3/library/std/src/../../backtrace/src/backtrace/miri.rs:62:14 2: 0xe9e016 - std::backtrace_rs::backtrace::trace_unsynchronized::<[closure@std::sys_common::backtrace::_print_fmt::{closure#1}]> at /home/r/src/rust/rustc.3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 3: 0xba3afd - std::sys_common::backtrace::_print_fmt at /home/r/src/rust/rustc.3/library/std/src/sys_common/backtrace.rs:67:5 4: 0xba2471 - <std::sys_common::backtrace::_print::DisplayBacktrace as std::fmt::Display>::fmt at /home/r/src/rust/rustc.3/library/std/src/sys_common/backtrace.rs:44:22 5: 0xbcf754 - core::fmt::rt::Argument::<'_>::fmt at /home/r/src/rust/rustc.3/library/core/src/fmt/rt.rs:138:9 6: 0x9b8f81 - std::fmt::write at /home/r/src/rust/rustc.3/library/core/src/fmt/mod.rs:1094:17 7: 0x4d0895 - <std::sys::unix::stdio::Stderr as std::io::Write>::write_fmt at /home/r/src/rust/rustc.3/library/std/src/io/mod.rs:1714:15 8: 0xba37b1 - std::sys_common::backtrace::_print at /home/r/src/rust/rustc.3/library/std/src/sys_common/backtrace.rs:47:5 9: 0xba365b - std::sys_common::backtrace::print at /home/r/src/rust/rustc.3/library/std/src/sys_common/backtrace.rs:34:9 10: 0x400bd4 - std::panic_hook_with_disk_dump::{closure#1} at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:278:22 11: 0x144187 - std::panic_hook_with_disk_dump at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:312:9 12: 0x143659 - std::panicking::default_hook at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:239:5 13: 0x1482a7 - std::panicking::rust_panic_with_hook at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:729:13 14: 0x40403b - std::panicking::begin_panic_handler::{closure#0} at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:619:13 15: 0xe618b3 - std::sys_common::backtrace::__rust_end_short_backtrace::<[closure@std::panicking::begin_panic_handler::{closure#0}], !> at /home/r/src/rust/rustc.3/library/std/src/sys_common/backtrace.rs:170:18 16: 0x403fc8 - std::panicking::begin_panic_handler at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:617:5 17: 0xee23e9 - core::panicking::panic_nounwind_fmt at /home/r/src/rust/rustc.3/library/core/src/panicking.rs:96:14 18: 0xee29e6 - core::panicking::panic_nounwind at /home/r/src/rust/rustc.3/library/core/src/panicking.rs:126:5 19: 0xee365e - core::panicking::panic_in_cleanup at /home/r/src/rust/rustc.3/library/core/src/panicking.rs:206:5 20: 0x2028a - main at src/tools/miri/tests/fail/panic/double_panic.rs:13:1 21: 0x3895ee - <fn() as std::ops::FnOnce<()>>::call_once - shim(fn()) at /home/r/src/rust/rustc.3/library/core/src/ops/function.rs:250:5 22: 0xe61725 - std::sys_common::backtrace::__rust_begin_short_backtrace::<fn(), ()> at /home/r/src/rust/rustc.3/library/std/src/sys_common/backtrace.rs:154:18 23: 0x3fe9aa - std::rt::lang_start::<()>::{closure#0} at /home/r/src/rust/rustc.3/library/std/src/rt.rs:166:18 24: 0x389962 - std::ops::function::impls::<impl std::ops::FnOnce<()> for &dyn std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe>::call_once at /home/r/src/rust/rustc.3/library/core/src/ops/function.rs:284:13 25: 0x4033b9 - std::panicking::try::do_call::<&dyn std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe, i32> at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:524:40 26: 0x402d58 - std::panicking::try::<i32, &dyn std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe> at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:488:19 27: 0x337ff7 - std::panic::catch_unwind::<&dyn std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe, i32> at /home/r/src/rust/rustc.3/library/std/src/panic.rs:142:14 28: 0x3fe7e7 - std::rt::lang_start_internal::{closure#2} at /home/r/src/rust/rustc.3/library/std/src/rt.rs:148:48 29: 0x4033d6 - std::panicking::try::do_call::<[closure@std::rt::lang_start_internal::{closure#2}], isize> at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:524:40 30: 0x402d7f - std::panicking::try::<isize, [closure@std::rt::lang_start_internal::{closure#2}]> at /home/r/src/rust/rustc.3/library/std/src/panicking.rs:488:19 31: 0x338028 - std::panic::catch_unwind::<[closure@std::rt::lang_start_internal::{closure#2}], isize> at /home/r/src/rust/rustc.3/library/std/src/panic.rs:142:14 32: 0x1418b0 - std::rt::lang_start_internal at /home/r/src/rust/rustc.3/library/std/src/rt.rs:148:20 33: 0x3fe9dc - std::rt::lang_start::<()> at /home/r/src/rust/rustc.3/library/std/src/rt.rs:165:17 thread caused non-unwinding panic. aborting. ``` If we also land https://github.com/rust-lang/rust/pull/115020, the 2nd backtrace disappears, hopefully making the "panic in a destructor during cleanup" easier to see. Fixes https://github.com/rust-lang/rust/issues/114954.
2023-08-25Auto merge of #114397 - sebastiantoh:issue-85222, r=Nadrierilbors-14/+31
Add note when matching on tuples/ADTs containing non-exhaustive types Fixes https://github.com/rust-lang/rust/issues/85222 r? `@Nadrieril`
2023-08-24when terminating during unwinding, show the reason whyRalf Jung-3/+3
2023-08-24Auto merge of #115012 - Zoxc:thir-check-root, r=cjgillotbors-1/+2
Ensure that THIR unsafety check is done before stealing it This ensures that THIR unsafety check is done before stealing it by running it on the typeck root instead of on a closure, which does nothing. Fixes https://github.com/rust-lang/rust/issues/111520
2023-08-21Add note when matching on tuples/ADTs containing non-exhaustive typesSebastian Toh-14/+31
2023-08-20give some unwind-related terminators a more clear nameRalf Jung-9/+9
2023-08-20Ensure that THIR unsafety check is done before stealing it. Fixes #111520.John Kåre Alsaker-1/+2
2023-08-19custom_mir: change Call() terminator syntax to something more readableRalf Jung-10/+9
2023-08-17Revert "Implement references VarDebugInfo."Camille GILLOT-4/+0
This reverts commit 2ec007191348ef7cc13eb55e44e007b02cf75cf3.
2023-08-15Rollup merge of #114819 - estebank:issue-78124, r=compiler-errorsMatthias Krüger-6/+9
Point at return type when it influences non-first `match` arm When encountering code like ```rust fn foo() -> i32 { match 0 { 1 => return 0, 2 => "", _ => 1, } } ``` Point at the return type and not at the prior arm, as that arm has type `!` which isn't influencing the arm corresponding to arm `2`. Fix #78124.
2023-08-15Deny FnDef in patternsMichael Goulet-1/+6
2023-08-14Move scrutinee `HirId` into `MatchSource::TryDesugar`Esteban Küber-6/+9
2023-08-14Remove unnecessary FIXMEouz-a-1/+0
2023-08-08Rollup merge of #114566 - fmease:type-alias-laziness-is-crate-specific, ↵Matthias Krüger-1/+1
r=oli-obk Store the laziness of type aliases in their `DefKind` Previously, we would treat paths referring to type aliases as *lazy* type aliases if the current crate had lazy type aliases enabled independently of whether the crate which the alias was defined in had the feature enabled or not. With this PR, the laziness of a type alias depends on the crate it is defined in. This generally makes more sense to me especially if / once lazy type aliases become the default in a new edition and we need to think about *edition interoperability*: Consider the hypothetical case where the dependency crate has an older edition (and thus eager type aliases), it exports a type alias with bounds & a where-clause (which are void but technically valid), the dependent crate has the latest edition (and thus lazy type aliases) and it uses that type alias. Arguably, the bounds should *not* be checked since at any time, the dependency crate should be allowed to change the bounds at will with a *non*-major version bump & without negatively affecting downstream crates. As for the reverse case (dependency: lazy type aliases, dependent: eager type aliases), I guess it rules out anything from slight confusion to mild annoyance from upstream crate authors that would be caused by the compiler ignoring the bounds of their type aliases in downstream crates with older editions. --- This fixes #114468 since before, my assumption that the type alias associated with a given weak projection was lazy (and therefore had its variances computed) did not necessarily hold in cross-crate scenarios (which [I kinda had a hunch about](https://github.com/rust-lang/rust/pull/114253#discussion_r1278608099)) as outlined above. Now it does hold. `@rustbot` label F-lazy_type_alias r? `@oli-obk`
2023-08-07Store the laziness of type aliases in the DefKindLeón Orell Valerian Liehr-1/+1
2023-08-07Auto merge of #113902 - Enselic:lint-recursive-drop, r=oli-obkbors-21/+96
Make `unconditional_recursion` warning detect recursive drops Closes #55388 Also closes #50049 unless we want to keep it for the second example which this PR does not solve, but I think it is better to track that work in #57965. r? `@oli-obk` since you are the mentor for #55388 Unresolved questions: - [x] There are two false positives that must be fixed before merging (see diff). I suspect the best way to solve them is to perform analysis after drop elaboration instead of before, as now, but I have not explored that any further yet. Could that be an option? **Answer:** Yes, that solved the problem. `@rustbot` label +T-compiler +C-enhancement +A-lint
2023-08-04Rollup merge of #114434 - Nilstrieb:indexing-spans, r=est31Matthias Krüger-2/+8
Improve spans for indexing expressions fixes #114388 Indexing is similar to method calls in having an arbitrary left-hand-side and then something on the right, which is the main part of the expression. Method calls already have a span for that right part, but indexing does not. This means that long method chains that use indexing have really bad spans, especially when the indexing panics and that span in coverted into a panic location. This does the same thing as method calls for the AST and HIR, storing an extra span which is then put into the `fn_span` field in THIR. r? compiler-errors
generated by cgit-pink 1.4.1-3-g733a5 (git 2.37.1) at 2026-07-13 11:09:53 +0000