6efddac288
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
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6 | <i32 as Foo>::foo();
| ^^^ the trait `Bar` is not implemented for `i32`, which is required by `i32: Foo`
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help: this trait has no implementations, consider adding one
--> f100.rs:2:1
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2 | trait Bar {}
| ^^^^^^^^^
note: required for `i32` to implement `Foo`
--> f100.rs:3:14
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3 | impl<T: Bar> Foo for T {}
| --- ^^^ ^
| |
| unsatisfied trait bound introduced here
```
Fix #40120.
20 lines
683 B
Plaintext
20 lines
683 B
Plaintext
error[E0277]: `()` is not an iterator
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--> $DIR/issue-108072-unmet-trait-alias-bound.rs:10:7
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LL | f(())
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| - ^^ `()` is not an iterator
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| required by a bound introduced by this call
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= help: the trait `Iterator` is not implemented for `()`, which is required by `(): IteratorAlias`
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= note: required for `()` to implement `IteratorAlias`
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note: required by a bound in `f`
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--> $DIR/issue-108072-unmet-trait-alias-bound.rs:7:14
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LL | fn f(_: impl IteratorAlias) {}
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| ^^^^^^^^^^^^^ required by this bound in `f`
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0277`.
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