rust/tests/ui/generator/not-send-sync.drop_tracking.stderr
2023-08-09 14:04:10 +00:00

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error: generator cannot be shared between threads safely
--> $DIR/not-send-sync.rs:17:17
|
LL | assert_sync(|| {
| _________________^
LL | |
LL | | let a = NotSync;
LL | | yield;
LL | | drop(a);
LL | | });
| |_____^ generator is not `Sync`
|
= help: within `[generator@$DIR/not-send-sync.rs:17:17: 17:19]`, the trait `Sync` is not implemented for `NotSync`
= note: consider using `std::sync::Arc<NotSync>`; for more information visit <https://doc.rust-lang.org/book/ch16-03-shared-state.html>
note: generator is not `Sync` as this value is used across a yield
--> $DIR/not-send-sync.rs:20:9
|
LL | let a = NotSync;
| - has type `NotSync` which is not `Sync`
LL | yield;
| ^^^^^ yield occurs here, with `a` maybe used later
LL | drop(a);
LL | });
| - `a` is later dropped here
note: required by a bound in `assert_sync`
--> $DIR/not-send-sync.rs:14:23
|
LL | fn assert_sync<T: Sync>(_: T) {}
| ^^^^ required by this bound in `assert_sync`
error: generator cannot be sent between threads safely
--> $DIR/not-send-sync.rs:24:17
|
LL | assert_send(|| {
| _________________^
LL | |
LL | | let a = NotSend;
LL | | yield;
LL | | drop(a);
LL | | });
| |_____^ generator is not `Send`
|
= help: within `[generator@$DIR/not-send-sync.rs:24:17: 24:19]`, the trait `Send` is not implemented for `NotSend`
= note: consider using `std::sync::Arc<NotSend>`; for more information visit <https://doc.rust-lang.org/book/ch16-03-shared-state.html>
note: generator is not `Send` as this value is used across a yield
--> $DIR/not-send-sync.rs:27:9
|
LL | let a = NotSend;
| - has type `NotSend` which is not `Send`
LL | yield;
| ^^^^^ yield occurs here, with `a` maybe used later
LL | drop(a);
LL | });
| - `a` is later dropped here
note: required by a bound in `assert_send`
--> $DIR/not-send-sync.rs:15:23
|
LL | fn assert_send<T: Send>(_: T) {}
| ^^^^ required by this bound in `assert_send`
error: aborting due to 2 previous errors