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6efddac288
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43 Commits

Author SHA1 Message Date
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
Esteban Küber
5b40aa5eb4 Tweak output for 'add line' suggestion 2023-04-12 22:50:10 +00:00
Michael Goulet
6c6bd01421 Note type mismatch on ConstArgHasType 2023-03-23 19:09:34 +00:00
Michael Goulet
9174edbae9 Delay overlap errors if errors are involved 2023-03-19 03:45:47 +00:00
Michael Goulet
322c7b6269 Constrain const vars to error if const types are mismatched 2023-03-19 03:45:47 +00:00
Michael Goulet
9574f39c2d Use param's real type in try_eval_lit_or_param 2023-03-09 20:49:11 +00:00
Camille GILLOT
facecf6e1b Fetch less HIR in signature check. 2023-02-14 20:26:03 +00:00
Esteban Küber
62ba3e70a1 Modify primary span label for E0308 
The previous output was unintuitive to users.
 2023-01-30 20:12:19 +00:00
Michael Goulet
5924c2511e Only point at impl self ty in WF if trait predicate shares self ty 2023-01-12 22:25:30 +00:00
Michael Goulet
2aabb0fd5d Point at impl self type for impl wf obligations 2023-01-12 20:44:47 +00:00
Michael Goulet
d76e168f01 Point at HIR types when impl trait ref doesn't normalize 2023-01-12 20:44:47 +00:00
Michael Goulet
9a39d7e441 Note predicate span on ImplDerivedObligation 2023-01-11 19:46:45 +00:00
Albert Larsan
cf2dff2b1e
Move /src/test to /tests 2023-01-11 09:32:08 +00:00