rust/tests/ui/coroutine/not-send-sync.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

53 lines
1.9 KiB
Plaintext

error: coroutine cannot be shared between threads safely
--> $DIR/not-send-sync.rs:14:5
|
LL | / assert_sync(|| {
LL | |
LL | | let a = NotSync;
LL | | yield;
LL | | drop(a);
LL | | });
| |______^ coroutine is not `Sync`
|
= help: within `{coroutine@$DIR/not-send-sync.rs:14:17: 14:19}`, the trait `Sync` is not implemented for `NotSync`, which is required by `{coroutine@$DIR/not-send-sync.rs:14:17: 14:19}: Sync`
note: coroutine is not `Sync` as this value is used across a yield
--> $DIR/not-send-sync.rs:17:9
|
LL | let a = NotSync;
| - has type `NotSync` which is not `Sync`
LL | yield;
| ^^^^^ yield occurs here, with `a` maybe used later
note: required by a bound in `assert_sync`
--> $DIR/not-send-sync.rs:11:23
|
LL | fn assert_sync<T: Sync>(_: T) {}
| ^^^^ required by this bound in `assert_sync`
error: coroutine cannot be sent between threads safely
--> $DIR/not-send-sync.rs:21:5
|
LL | / assert_send(|| {
LL | |
LL | | let a = NotSend;
LL | | yield;
LL | | drop(a);
LL | | });
| |______^ coroutine is not `Send`
|
= help: within `{coroutine@$DIR/not-send-sync.rs:21:17: 21:19}`, the trait `Send` is not implemented for `NotSend`, which is required by `{coroutine@$DIR/not-send-sync.rs:21:17: 21:19}: Send`
note: coroutine is not `Send` as this value is used across a yield
--> $DIR/not-send-sync.rs:24:9
|
LL | let a = NotSend;
| - has type `NotSend` which is not `Send`
LL | yield;
| ^^^^^ yield occurs here, with `a` maybe used later
note: required by a bound in `assert_send`
--> $DIR/not-send-sync.rs:12:23
|
LL | fn assert_send<T: Send>(_: T) {}
| ^^^^ required by this bound in `assert_send`
error: aborting due to 2 previous errors