bjoernager/rust
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Provide more context on derived obligation error primary label

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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.
This commit is contained in:
Esteban Küber 2024-01-29 18:31:02 +00:00
parent f3d71c9249
commit 6efddac288
196 changed files with 382 additions and 373 deletions
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2
tests/ui/async-await/debug-ice-attempted-to-add-with-overflow.stderr
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@ -7,7 +7,7 @@ LL | [0usize; 0xffff_ffff_ffff_ffff].await;
| |`[usize; usize::MAX]` is not a future
| help: remove the `.await`
|
= help: the trait `Future` is not implemented for `[usize; usize::MAX]`
= help: the trait `Future` is not implemented for `[usize; usize::MAX]`, which is required by `[usize; usize::MAX]: IntoFuture`
= note: [usize; usize::MAX] must be a future or must implement `IntoFuture` to be awaited
= note: required for `[usize; usize::MAX]` to implement `IntoFuture`