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.
52 lines
2.1 KiB
Plaintext
52 lines
2.1 KiB
Plaintext
error[E0382]: borrow of moved value: `g`
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--> $DIR/issue-105084.rs:37:14
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LL | let mut g = || {
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| ----- move occurs because `g` has type `{coroutine@$DIR/issue-105084.rs:14:17: 14:19}`, which does not implement the `Copy` trait
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...
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LL | let mut h = copy(g);
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| - value moved here
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...
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LL | Pin::new(&mut g).resume(());
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| ^^^^^^ value borrowed here after move
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note: consider changing this parameter type in function `copy` to borrow instead if owning the value isn't necessary
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--> $DIR/issue-105084.rs:9:21
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LL | fn copy<T: Copy>(x: T) -> T {
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| ---- ^ this parameter takes ownership of the value
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| in this function
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help: consider cloning the value if the performance cost is acceptable
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LL | let mut h = copy(g.clone());
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| ++++++++
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error[E0277]: the trait bound `Box<(i32, ())>: Copy` is not satisfied in `{coroutine@$DIR/issue-105084.rs:14:17: 14:19}`
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--> $DIR/issue-105084.rs:31:17
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LL | let mut g = || {
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| -- within this `{coroutine@$DIR/issue-105084.rs:14:17: 14:19}`
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...
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LL | let mut h = copy(g);
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| ^^^^^^^ within `{coroutine@$DIR/issue-105084.rs:14:17: 14:19}`, the trait `Copy` is not implemented for `Box<(i32, ())>`, which is required by `{coroutine@$DIR/issue-105084.rs:14:17: 14:19}: Copy`
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note: coroutine does not implement `Copy` as this value is used across a yield
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--> $DIR/issue-105084.rs:21:22
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LL | Box::new((5, yield));
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| -------------^^^^^--
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| | |
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| | yield occurs here, with `Box::new((5, yield))` maybe used later
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| has type `Box<(i32, ())>` which does not implement `Copy`
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note: required by a bound in `copy`
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--> $DIR/issue-105084.rs:9:12
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LL | fn copy<T: Copy>(x: T) -> T {
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| ^^^^ required by this bound in `copy`
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error: aborting due to 2 previous errors
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Some errors have detailed explanations: E0277, E0382.
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For more information about an error, try `rustc --explain E0277`.
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