rust/tests/ui/traits/suggest-dereferences/dont-suggest-unsize-deref.stderr
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

23 lines
1015 B
Plaintext

error[E0277]: `&dyn IntoIterator<IntoIter = I, Item = i32>` is not an iterator
--> $DIR/dont-suggest-unsize-deref.rs:11:18
|
LL | use_iterator(i);
| ------------ ^ `&dyn IntoIterator<IntoIter = I, Item = i32>` is not an iterator
| |
| required by a bound introduced by this call
|
= help: the trait `Iterator` is not implemented for `&dyn IntoIterator<IntoIter = I, Item = i32>`, which is required by `&dyn IntoIterator<IntoIter = I, Item = i32>: IntoIterator`
= note: required for `&dyn IntoIterator<IntoIter = I, Item = i32>` to implement `IntoIterator`
note: required by a bound in `use_iterator`
--> $DIR/dont-suggest-unsize-deref.rs:3:8
|
LL | fn use_iterator<I>(itr: I)
| ------------ required by a bound in this function
LL | where
LL | I: IntoIterator<Item = i32>,
| ^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `use_iterator`
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0277`.