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.
63 lines
2.1 KiB
Plaintext
63 lines
2.1 KiB
Plaintext
warning: the feature `non_lifetime_binders` is incomplete and may not be safe to use and/or cause compiler crashes
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--> $DIR/bad-sized-cond.rs:1:12
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LL | #![feature(non_lifetime_binders)]
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| ^^^^^^^^^^^^^^^^^^^^
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= note: see issue #108185 <https://github.com/rust-lang/rust/issues/108185> for more information
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= note: `#[warn(incomplete_features)]` on by default
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error[E0277]: the size for values of type `V` cannot be known at compilation time
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--> $DIR/bad-sized-cond.rs:17:5
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LL | foo();
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| ^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `V`
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note: required by a bound in `foo`
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--> $DIR/bad-sized-cond.rs:6:15
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LL | pub fn foo()
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| --- required by a bound in this function
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LL | where
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LL | for<V> V: Sized,
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| ^^^^^ required by this bound in `foo`
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error[E0277]: `V` is not an iterator
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--> $DIR/bad-sized-cond.rs:20:5
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LL | bar();
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| ^^^^^ `V` is not an iterator
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= help: the trait `Iterator` is not implemented for `V`, which is required by `V: IntoIterator`
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= note: required for `V` to implement `IntoIterator`
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note: required by a bound in `bar`
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--> $DIR/bad-sized-cond.rs:12:15
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LL | pub fn bar()
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| --- required by a bound in this function
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LL | where
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LL | for<V> V: IntoIterator,
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| ^^^^^^^^^^^^ required by this bound in `bar`
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error[E0277]: the size for values of type `V` cannot be known at compilation time
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--> $DIR/bad-sized-cond.rs:20:5
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LL | bar();
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| ^^^^^ doesn't have a size known at compile-time
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= help: the trait `Sized` is not implemented for `V`, which is required by `V: IntoIterator`
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= note: required for `V` to implement `IntoIterator`
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note: required by a bound in `bar`
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--> $DIR/bad-sized-cond.rs:12:15
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LL | pub fn bar()
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| --- required by a bound in this function
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LL | where
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LL | for<V> V: IntoIterator,
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| ^^^^^^^^^^^^ required by this bound in `bar`
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error: aborting due to 3 previous errors; 1 warning emitted
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For more information about this error, try `rustc --explain E0277`.
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