Commit graph

240 commits

Author SHA1 Message Date
Esteban Küber
c73b3d20c6 Unify wording of resolve error
Remove "failed to resolve" and use the same format we use in other resolution errors "cannot find `name`".

```
error[E0433]: cannot find `nonexistent` in `existent`
  --> $DIR/custom_attr_multisegment_error.rs:5:13
   |
LL | #[existent::nonexistent]
   |             ^^^^^^^^^^^ could not find `nonexistent` in `existent`
```
2026-02-17 16:51:44 +00:00
bors
75b9d89c68 Auto merge of #151380 - ShoyuVanilla:shallow-resolve-to-root-var, r=lcnr
Shallow resolve ty and const vars to their root vars

Continuation of https://github.com/rust-lang/rust/pull/147193
2026-02-15 03:04:28 +00:00
reddevilmidzy
b4ee9953d8 modify error comment and bless test, delete tests/ui/const-generics/generic_const_exprs/lit_type_mismatch.rs 2026-02-14 04:12:46 +00:00
Shoyu Vanilla
8062bee9e3 Bless tests 2026-02-11 18:08:18 +09:00
Keith-Cancel
73a991fb9d Allow provisional mgca syntax of type const <IDENT> = <EXPR> to be reconized.
Revert, but without type const.

Update symbol for feature err, then update suggestion output, and lastly update tests that change because of those.

Update these new tests with the correct syntax, and few existing tests with the new outputs the merge with main added.

Fix for tidyfmt and some errors when manually resolving a merge conflicts.

Update these tests to use update error messages and type const syntax.

Update comments and error message to use new syntax instead of old type_const attribute.

Remove the type_const attribute

update some more tests to use the new syntax.

Update these test cases.

update feature gate test

Change gate logic for `mgca_type_const_syntax` to work also if `min_generic_const_args` is enabled.

Create a new feature gate that checks for the feature before expansion.

Make rustfmt handle the `type const` syntax correctly.

Add a convience method to check if a RhsKind is type const.

Rename `Const` discriminant to `Body` for `ConstItemRhsKind`

Give the `TraitItemKind` flag an enum instead of a simple bool to better describe what the flag is for.

Update formatting for these match statements.

Update clippy test to use type const syntax.

Update test to use type const syntax.

update rustfmt to match ast items.

Update clippy to match ast and hir items.

Few more test cases that used old attribute, instead of 'type const'

Update to match the output from the feature gate checks.

tidyfmt adjustments.

Update the is_type_const, so I can constrain record!(..) in encoder.rs

Update conditional compilation test.

Move the feature gate to after expansion to allow for cfg(...) to work.

Update some more tests to use the new syntax.

Update type const tests in associated-const-bindings to use new syntax.

Don't check based off the attribute, but the item here.

Update some tests outside of the const_generics folder that were using #[type_const]

update the tests in associated consts that use #[type_const] to use type const

Update these mgca tests with the type const syntax.

Add a flag to TraitItemKind for detecting type const for now. Maybe later change ItemConstRhs to have optional consts but that touches a lot more lines of code.

Don't need into for these now that it's a query.

Add is_type_const query to handle foreign def ids.

update this test to use type const syntax.

Fix logic here, we only want to lower if there is expression in this case.

Update built-in macros to use ConstItemRhsKind

Update more instance of the old ConstItemRhs.

Rename ConstItemKind to ConstItemRhsKind, I noticed there is a typed called ConstantItemKind, so add the Rhs to the name to avoid confusion.

Update lower to use ConstItemKind

Add an other helper method to check if the rhs kinda has an expr.

Update item parse to use ConstItemKind enum.

Felt the field name could a be little clear when editing a few other things.

Change the ConstItem struct see know if we have a type const or regular const.

Make sure this syntax is properly feature gated.
2026-02-09 07:59:24 -08:00
khyperia
e6f5b97152 MGCA: require #[type_const] on free consts too 2026-02-06 15:35:18 +01:00
Esteban Küber
15d8e9ea66 Recognize potential impl<const N: usize> to impl<N> mistake
When encountering code like `impl<N> Bar<N> for [u8; N]`, suggest `impl<const N: Type> Bar<N> for [u8; N]` as a possibility.

```
error[E0423]: expected value, found type parameter `T`
  --> $DIR/issue-69654.rs:5:25
   |
LL | impl<T> Bar<T> for [u8; T] {}
   |      -                  ^ not a value
   |      |
   |      found this type parameter
   |
help: you might have meant to write a const parameter here
   |
LL | impl<const T: /* Type */> Bar<T> for [u8; T] {}
   |      +++++  ++++++++++++
```
2026-01-13 23:47:35 +00:00
mu001999
af76a2456d MGCA: Support tuple expressions as direct const arguments 2026-01-07 08:44:23 +08:00
Noah Lev
c7e368543c Use more principled check for generics in const ops
Instead of using a visitor in typeck, we just check, whenever lowering a
use of a param, whether the parent item is an MCG anon const during hir
ty lowering (and instantiate_value_path). If so, we report an error
since MCG anon consts should never be able to use generics. All other
kinds of anon consts are at least syntactically allowed to use generic
params.

We use a `TypeFolder` to accomplish this; this way, we look at the
fully explicit semantic representation of the type/const/whatever and
don't miss subtle cases like `Self` type aliases.
2026-01-01 18:12:34 -08:00
Noah Lev
319735d8c9 Fix parsing of mgca const blocks in array repeat exprs
There was an inconsistency where in the case of array repeat
expressions, we forgot to eat the `const` keyword of mgca const blocks.
Thus, we ended up parsing them as an anon const containing an inline
const, instead of simply an anon const as they should be.

This commit fixes that issue and also makes the parsing for mgca const
blocks more consistent and simpler in general. For example, we avoid
doing a lookahead check to ensure there's a curly brace coming. There
should always be one after a `const` keyword in an expression context,
and that's handled by the mgca const block parsing function.
2025-12-30 11:30:31 -08:00
Kivooeo
84f2854bc3 remove fixme & update stderr files 2025-12-16 13:23:48 +00:00
Esteban Küber
6cd44a472c Make typo in field and name suggestions verbose 2025-12-09 17:29:23 +00:00
xonx4l
4b000cfacd Merge E0412 into E0425 2025-12-02 18:25:13 +00:00
Oli Scherer
cac6f8760a Do not emit solver errors that contain error types 2025-10-31 08:17:44 +00:00
Camille Gillot
5dfbf67f94 Replace NullOp::SizeOf and NullOp::AlignOf by lang items. 2025-10-23 00:38:28 +00:00
Michael Goulet
5508b471bd instantiate predicate binder without recanonicalizing goal in new solver 2025-10-20 10:31:08 +02:00
Cameron Steffen
9615ec7d10 Split AssocContainer::{InherentImpl,TraitImpl} 2025-09-12 15:14:15 -05:00
Scott Schafer
93d16c5100
fix: Add col separator before secondary messages with no source 2025-08-26 15:15:17 -06:00
Scott Schafer
8835ea854e
fix: Don't add an end column separator after a file with no source 2025-08-26 15:15:17 -06:00
Karol Zwolak
d14b83e378 bless tests with new lint messages 2025-08-19 21:27:10 +02:00
bors
61cb1e97fc Auto merge of #115746 - tgross35:unnamed-threads-panic-message, r=cuviper
Print thread ID in panic message

`panic!` does not print any identifying information for threads that are
unnamed. However, in many cases, the thread ID can be determined.

This changes the panic message from something like this:

    thread '<unnamed>' panicked at src/main.rs:3:5:
    explicit panic

To something like this:

    thread '<unnamed>' (12345) panicked at src/main.rs:3:5:
    explicit panic

Stack overflow messages are updated as well.

This change applies to both named and unnamed threads. The ID printed is
the OS integer thread ID rather than the Rust thread ID, which should
also be what debuggers print.

try-job: aarch64-apple
try-job: aarch64-gnu
try-job: dist-apple-various
try-job: dist-various-*
try-job: dist-x86_64-freebsd
try-job: dist-x86_64-illumos
try-job: dist-x86_64-netbsd
try-job: dist-x86_64-solaris
try-job: test-various
try-job: x86_64-gnu
try-job: x86_64-mingw-1
try-job: x86_64-msvc-1
2025-08-07 02:32:55 +00:00
Trevor Gross
289fe36d37 Print thread ID in panic message if thread name is unknown
`panic!` does not print any identifying information for threads that are
unnamed. However, in many cases, the thread ID can be determined.

This changes the panic message from something like this:

    thread '<unnamed>' panicked at src/main.rs:3:5:
    explicit panic

To something like this:

    thread '<unnamed>' (0xff9bf) panicked at src/main.rs:3:5:
    explicit panic

Stack overflow messages are updated as well.

This change applies to both named and unnamed threads. The ID printed is
the OS integer thread ID rather than the Rust thread ID, which should
also be what debuggers print.
2025-08-06 23:59:47 +00:00
León Orell Valerian Liehr
02ea38cfff
Fortify generic param default checks 2025-08-06 01:26:26 +02:00
Jacob Adam
b8302ce605
Add a regression test for an ICE with the generic_const_exprs feature attribute.
It ensures that using the `generic_const_exprs` feature in a library crate
without enabling it in a dependent crate does not lead to an ICE.
2025-07-29 09:35:36 +02:00
Camille GILLOT
1987471d05 Consider parent predicates in ImpossiblePredicates pass. 2025-07-20 22:45:07 +00:00
Oli Scherer
9b5d57d0a9 Unconditionally run check_item_type on all items 2025-06-30 08:06:08 +00:00
Yotam Ofek
0e32036deb gce: don't ICE on non-local const 2025-06-27 18:07:07 +00:00
bors
e61dd437f3 Auto merge of #143074 - compiler-errors:rollup-cv64hdh, r=compiler-errors
Rollup of 18 pull requests

Successful merges:

 - rust-lang/rust#137843 (make RefCell unstably const)
 - rust-lang/rust#140942 (const-eval: allow constants to refer to mutable/external memory, but reject such constants as patterns)
 - rust-lang/rust#142549 (small iter.intersperse.fold() optimization)
 - rust-lang/rust#142637 (Remove some glob imports from the type system)
 - rust-lang/rust#142647 ([perf] Compute hard errors without diagnostics in impl_intersection_has_impossible_obligation)
 - rust-lang/rust#142700 (Remove incorrect comments in `Weak`)
 - rust-lang/rust#142927 (Add note to `find_const_ty_from_env`)
 - rust-lang/rust#142967 (Fix RwLock::try_write documentation for WouldBlock condition)
 - rust-lang/rust#142986 (Port `#[export_name]` to the new attribute parsing infrastructure)
 - rust-lang/rust#143001 (Rename run always )
 - rust-lang/rust#143010 (Update `browser-ui-test` version to `0.20.7`)
 - rust-lang/rust#143015 (Add `sym::macro_pin` diagnostic item for `core::pin::pin!()`)
 - rust-lang/rust#143033 (Expand const-stabilized API links in relnotes)
 - rust-lang/rust#143041 (Remove cache for citool)
 - rust-lang/rust#143056 (Move an ACE test out of the GCI directory)
 - rust-lang/rust#143059 (Fix 1.88 relnotes)
 - rust-lang/rust#143067 (Tracking issue number for `iter_macro`)
 - rust-lang/rust#143073 (Fix some fixmes that were waiting for let chains)

Failed merges:

 - rust-lang/rust#143020 (codegen_fn_attrs: make comment more precise)

r? `@ghost`
`@rustbot` modify labels: rollup
2025-06-27 00:44:20 +00:00
Ralf Jung
492526548d const-eval: allow constants to refer to mutable/external memory, but reject such constants as patterns 2025-06-26 18:09:47 +02:00
Michael Goulet
250b5d204f Make missing lifetime suggestion verbose 2025-06-24 18:59:42 +00:00
Jakub Beránek
0093ca5c76
Rollup merge of #141610 - BoxyUwU:stabilize_generic_arg_infer, r=lcnr,traviscross
Stabilize `feature(generic_arg_infer)`

Fixes rust-lang/rust#85077

r? lcnr

cc ````@rust-lang/project-const-generics````
2025-06-18 18:06:49 +02:00
Boxy
fe04ae7faf stabilize gai 2025-06-11 15:30:15 +01:00
Martin Nordholts
4882ea4b3c rustc_resolve: Improve resolve_const_param_in_non_trivial_anon_const wording
In some contexts, const expressions are OK. Add a `here` to the error
message to clarify this.
2025-06-07 13:01:16 +02:00
Oli Scherer
020216c31c Clarify why we are talking about a failed const eval at a random place 2025-06-02 15:37:15 +00:00
Oli Scherer
b331b8b96d Use the informative error as the main const eval error message 2025-06-02 15:37:15 +00:00
Michael Goulet
d0413436d5 Do not try to confirm non-dyn compatible method 2025-05-23 12:20:35 +00:00
Boxy
b1774b8d73 Fix tests 2025-05-21 20:20:19 +01:00
Michael Goulet
45598de704 Do not gather local all together at the beginning of typeck 2025-05-05 14:27:09 +00:00
Boxy
238d113b07 Set groundwork for proper const normalization 2025-05-01 20:05:02 +01:00
Chris Denton
546367ef69
Rollup merge of #139607 - reddevilmidzy:add-regression-test, r=petrochenkov
Add regression test for #127424

Fixes: https://github.com/rust-lang/rust/issues/127424

This ICE no longer reproduces, so it appears to have already been fixed.
This PR adds a regression test to ensure the issue doesn’t come back in the future.

Please let me know if there's anything I should improve or revise!
2025-04-13 03:07:06 +00:00
reddevilmidzy
11256a0fb0 Add regression test for #127424 2025-04-12 22:16:08 +09:00
Vadim Petrochenkov
5c160f511e compiletest: Stricter parsing for diagnostic kinds 2025-04-07 19:13:31 +03:00
Oli Scherer
cb4751d4b8 Implement #[define_opaque] attribute for functions. 2025-03-11 12:05:02 +00:00
Michael Goulet
0baee2432a Don't typeck during WF, instead check outside of WF in check_crate 2025-03-03 23:09:42 +00:00
Michael Goulet
6d71251cf9 Trim suggestion parts to the subset that is purely additive 2025-02-14 00:44:10 -08:00
Michael Goulet
b480a9214a Use underline suggestions for purely 'additive' replacements 2025-02-14 00:27:13 -08:00
lcnr
83a02619d5 fallout :skull_emoji: 2025-02-14 00:37:23 +01:00
Esteban Küber
f0845adb0c Show diff suggestion format on verbose replacement
```
error[E0610]: `{integer}` is a primitive type and therefore doesn't have fields
  --> $DIR/attempted-access-non-fatal.rs:7:15
   |
LL |     let _ = 2.l;
   |               ^
   |
help: if intended to be a floating point literal, consider adding a `0` after the period and a `f64` suffix
   |
LL -     let _ = 2.l;
LL +     let _ = 2.0f64;
   |
```
2025-02-10 20:21:39 +00:00
Matthias Krüger
308ea7120b
Rollup merge of #135860 - fmease:compiler-mv-obj-save-dyn-compat-ii, r=jieyouxu
Compiler: Finalize dyn compatibility renaming

Update the Reference link to use the new URL fragment from https://github.com/rust-lang/reference/pull/1666 (this change has finally hit stable). Fixes a FIXME.

Follow-up to #130826.
Part of #130852.

~~Blocking it on #133372.~~ (merged)

r? ghost
2025-01-31 12:28:15 +01:00
Michael Goulet
7e68422859 Properly check that array length is valid type during built-in unsizing in index 2025-01-28 17:52:28 +00:00