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Author SHA1 Message Date
Oli Scherer 9dc76207ff Fail relating constants of different types 2024-05-24 09:15:43 +00:00
lcnr da969d41a3 fix NormalizesTo proof tree issue 2024-04-30 20:03:33 +00:00
Gurinder Singh c30e15aded Fail candidate assembly for erroneous types 
Trait predicates for types which have errors may still
evaluate to OK leading to downstream ICEs. Now we return
a selection error for such types in candidate assembly and
thereby prevent such issues
 2024-04-16 12:42:48 +05:30
Oli Scherer b8bd981545 Specialization already rejects defining opaque types 2024-04-04 10:01:45 +00:00
Michael Goulet b8396d10c4 Always make inductive cycles as ambig during typeck 2024-03-31 20:44:30 -04:00
Matthias Krüger 877f29363d
Rollup merge of #122988 - matthiaskrgr:icetests, r=petrochenkov 
add even more tests!

Fixes https://github.com/rust-lang/rust/issues/109869
Fixes https://github.com/rust-lang/rust/issues/110453
Fixes https://github.com/rust-lang/rust/issues/109020
Fixes https://github.com/rust-lang/rust/issues/108580
Fixes https://github.com/rust-lang/rust/issues/108220
Fixes https://github.com/rust-lang/rust/issues/113045
Fixes https://github.com/rust-lang/rust/issues/113133
Fixes https://github.com/rust-lang/rust/issues/114464
Fixes https://github.com/rust-lang/rust/issues/116599
Fixes https://github.com/rust-lang/rust/issues/119731
 2024-03-25 17:05:34 +01:00
bors dda2372cf3 Auto merge of #122802 - estebank:unconstrained-generic-const, r=Nadrieril 
Provide structured suggestion for unconstrained generic constant

```
error: unconstrained generic constant
  --> $DIR/const-argument-if-length.rs:18:10
   |
LL |     pad: [u8; is_zst::<T>()],
   |          ^^^^^^^^^^^^^^^^^^^
   |
help: try adding a `where` bound
   |
LL | pub struct AtLeastByte<T: ?Sized> where [(); is_zst::<T>()]: {
   |                                   ++++++++++++++++++++++++++
```

Detect when the constant expression isn't `usize` and suggest casting:

```
error: unconstrained generic constant
 --> f300.rs:6:10
  |
6 |     bb::<{!N}>();
  |          ^^^^
-Ztrack-diagnostics: created at compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs:3539:36
  |
help: try adding a `where` bound
  |
5 | fn b<const N: bool>() where [(); {!N} as usize]: {
  |                       ++++++++++++++++++++++++++
```

Fix #122395.
 2024-03-25 09:59:37 +00:00
Matthias Krüger b151e06659 add test for ICE: min_specialization: Ok(['?0, Const { ty: usize, kind: Leaf(0x0000000000000000) }]) is not fully resolved #113045 
Fixes https://github.com/rust-lang/rust/issues/113045
 2024-03-24 10:19:25 +01:00
Matthias Krüger 368bfb2c10 add test for #107228 
Fixes #107228
 2024-03-23 13:05:22 +01:00
Esteban Küber 6b24fdf811 Provide structured suggestion for unconstrained generic constant 
```
error: unconstrained generic constant
  --> $DIR/const-argument-if-length.rs:18:10
   |
LL |     pad: [u8; is_zst::<T>()],
   |          ^^^^^^^^^^^^^^^^^^^
   |
help: try adding a `where` bound
   |
LL | pub struct AtLeastByte<T: ?Sized> where [(); is_zst::<T>()]: {
   |                                   ++++++++++++++++++++++++++
```

Detect when the constant expression isn't `usize` and suggest casting:

```
error: unconstrained generic constant
 --> f300.rs:6:10
  |
6 |     bb::<{!N}>();
  |          ^^^^
-Ztrack-diagnostics: created at compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs:3539:36
  |
help: try adding a `where` bound
  |
5 | fn b<const N: bool>() where [(); {!N} as usize]: {
  |                       ++++++++++++++++++++++++++
```

Fix #122395.
 2024-03-21 00:03:59 +00:00
Esteban Küber 6c31f6ce12 Provide structured suggestion for #![feature(foo)] 
```
error: `S2<'_>` is forbidden as the type of a const generic parameter
  --> $DIR/lifetime-in-const-param.rs:5:23
   |
LL | struct S<'a, const N: S2>(&'a ());
   |                       ^^
   |
   = note: the only supported types are integers, `bool` and `char`
help: add `#![feature(adt_const_params)]` to the crate attributes to enable more complex and user defined types
   |
LL + #![feature(adt_const_params)]
   |
```

Fix #55941.
 2024-03-18 16:08:58 +00:00
许杰友 Jieyou Xu (Joe) ec2cc761bc
[AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
Oli Scherer 5f6390f947 Continue compilation after check_mod_type_wf errors 2024-02-14 11:00:30 +00:00
Michael Goulet b4eee2e8b3 Do not assemble candidates for default impls 2024-02-13 19:20:13 +00:00
Zalathar 7b73e4fd44 Allow restricted trait impls in macros with min_specialization 
Implementing traits marked with `#[rustc_specialization_trait]` normally
requires (min-)specialization to be enabled for the enclosing crate.

With this change, that permission can also be granted by an
`allow_internal_unstable` attribute on the macro that generates the impl.
 2024-02-10 18:14:02 +11:00
Oli Scherer eab2adb660 Continue to borrowck even if there were previous errors 2024-02-08 08:10:43 +00:00
bors 870a01a30e Auto merge of #120558 - oli-obk:missing_impl_item_ice, r=estebank 
Stop bailing out from compilation just because there were incoherent traits

fixes #120343

but also has a lot of "type annotations needed" fallout. Some are fixed in the second commit.
 2024-02-08 05:01:09 +00:00
r0cky c7519d42c2 Update tests 2024-02-07 10:42:01 +08:00
Oli Scherer 83738a9b1c Stop bailing out from compilation just because there were incoherent traits 2024-02-05 10:17:31 +00:00
Esteban Küber 6efddac288 Provide more context on derived obligation error primary label 
Expand the primary span of E0277 when the immediate unmet bound is not what the user wrote:

```
error[E0277]: the trait bound `i32: Bar` is not satisfied
 --> f100.rs:6:6
  |
6 |     <i32 as Foo>::foo();
  |      ^^^ the trait `Bar` is not implemented for `i32`, which is required by `i32: Foo`
  |
help: this trait has no implementations, consider adding one
 --> f100.rs:2:1
  |
2 | trait Bar {}
  | ^^^^^^^^^
note: required for `i32` to implement `Foo`
 --> f100.rs:3:14
  |
3 | impl<T: Bar> Foo for T {}
  |         ---  ^^^     ^
  |         |
  |         unsatisfied trait bound introduced here
```

Fix #40120.
 2024-01-30 21:28:18 +00:00
Guillaume Gomez f7043a41ce
Rollup merge of #120400 - estebank:bound-error-cleanup, r=oli-obk 
Bound errors span label cleanup

Consolidate span labels for "this type doesn't satisfy a bound" for more compact diagnostic output.
 2024-01-30 11:19:15 +01:00
Esteban Küber 7df4a09fc4 Use single label for method not found due to unmet bound 2024-01-26 20:47:19 +00:00
Oli Scherer db7cd57091 Remove track_errors entirely 2024-01-23 15:23:22 +00:00
Oli Scherer 9454b51b05 Make generic const type mismatches not hide trait impls from the trait solver 2024-01-22 13:23:45 +00:00
bors 5378c1cf07 Auto merge of #119821 - oli-obk:reveal_all_const_evals, r=lcnr 
Always use RevealAll for const eval queries

implements what is described in https://github.com/rust-lang/rust/pull/116803#discussion_r1364089471

Using `UserFacing` for const eval does not make sense anymore, unless we significantly change things like avoiding revealing opaque types.

New tests are copied from https://github.com/rust-lang/rust/pull/101478
 2024-01-20 04:57:51 +00:00
Oli Scherer 867831a170 Always use RevealAll for const eval queries 2024-01-19 11:32:34 +00:00
Matthias Krüger 0891cb4d81
Rollup merge of #119963 - clubby789:spec-allow-internal-unstable, r=compiler-errors 
Fix `allow_internal_unstable` for `(min_)specialization`

Fixes #119950

Blocked on #119949 (comment doesn't make sense until that merges)

I'd like to follow this up and look for more instances of not properly checking spans for features but I wanted to fix the motivating issue.
 2024-01-15 08:44:49 +01:00
clubby789 0529ccf341 Fix allow_internal_unstable for (min_)specialization 2024-01-14 13:50:02 +00:00
George-lewis d56cdd48cb Bless tests 
Update tests
 2024-01-13 12:46:58 -05:00
bors 5113ed28ea Auto merge of #118297 - shepmaster:warn-dead-tuple-fields, r=WaffleLapkin 
Merge `unused_tuple_struct_fields` into `dead_code`

This implicitly upgrades the lint from `allow` to `warn` and places it into the `unused` lint group.

[Discussion on Zulip](https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/Moving.20.60unused_tuple_struct_fields.60.20from.20allow.20to.20warn)
 2024-01-05 04:51:55 +00:00
Jake Goulding 53eca9fa87 Adjust compiler tests for unused_tuple_struct_fields -> dead_code 2024-01-02 15:34:37 -05:00
Oli Scherer cd4c352fb4 Reorder check_item_type diagnostics so they occur next to the corresponding check_well_formed diagnostics 2024-01-02 14:17:56 +00:00
León Orell Valerian Liehr 3eb48a35c8
Introduce const Trait (always-const trait bounds) 2023-12-27 12:51:32 +01:00
lcnr 11d16c4082 update use of feature flags 2023-12-14 15:22:37 +01:00
surechen 40ae34194c remove redundant imports 
detects redundant imports that can be eliminated.

for #117772 :

In order to facilitate review and modification, split the checking code and
removing redundant imports code into two PR.
 2023-12-10 10:56:22 +08:00
Nilstrieb 41e8d152dc Show number in error message even for one error 
Co-authored-by: Adrian <adrian.iosdev@gmail.com>
 2023-11-24 19:15:52 +01:00
Oli Scherer beaf46f7e5 Work around the fact that check_mod_type_wf may spuriously return ErrorGuaranteed, even if that error is only emitted by check_modwitem_types 2023-10-25 12:04:54 +00:00
Michael Goulet 592163fb71 Extend impl's def_span to include where clauses 2023-10-09 11:47:02 +00:00
Michael Goulet 82e7cec16d Tweak expected message to explain what it's actually signifying 2023-09-23 00:57:17 +00:00
Michael Goulet 30e6cea0ae Point out if a local trait has no implementations 2023-09-10 21:20:36 +00:00
Michael Goulet 0f7ef1a202 Adjust inner span of implicit self ref argument 2023-06-28 17:51:01 +00:00
Michael Goulet aabdeedc7c bless coherence test 2023-06-06 18:43:20 +00:00
Dylan DPC f748bb1402
Rollup merge of #111252 - matthewjasper:min-spec-improvements, r=compiler-errors 
Min specialization improvements

- Don't allow specialization impls with no items, such implementations are probably not correct and only occur as mistakes in the compiler and standard library
- Fix a missing normalization call
- Adds spans for lifetime errors from overly general specializations

Closes #79457
Closes #109815
 2023-05-09 12:33:46 +05:30
Matthew Jasper f46eabb9e5 Report nicer lifetime errors for specialization 
Add an obligation cause for these error so that the error points to the
implementations that caused the error.
 2023-05-05 22:19:56 +01:00
Matthew Jasper fafe9e71d5 Normalize consistently for specializations 2023-05-05 16:19:18 +01:00
Matthew Jasper bd928a0b5e Disallow (min) specialization imps with no items 
Such implementations are usually mistakes and are not used in the
compiler or standard library (after this commit) so forbid them with
`min_specialization`.
 2023-05-05 16:19:18 +01:00
Takayuki Maeda 0a64dac604 remove unnecessary attribute from a diagnostic 2023-05-05 17:28:52 +09:00
whtahy fcf8468efc add known-bug test for unsound issue 105782 2023-04-26 22:34:39 -04:00
whtahy bfdd1c4e35 add known-bug test for unsound issue 40582 2023-04-26 22:34:29 -04:00
Deadbeef 4c6ddc036b fix library and rustdoc tests 2023-04-16 11:38:52 +00:00