mirror of
https://github.com/rust-lang/rust.git
synced 2025-11-03 22:49:17 +00:00
35 lines
1.5 KiB
Plaintext
35 lines
1.5 KiB
Plaintext
error[E0277]: the type `&mut Context<'_>` may not be safely transferred across an unwind boundary
|
|
--> $DIR/async-is-unwindsafe.rs:12:5
|
|
|
|
|
LL | is_unwindsafe(async {
|
|
| _____^^^^^^^^^^^^^_-
|
|
| | |
|
|
| | `&mut Context<'_>` may not be safely transferred across an unwind boundary
|
|
LL | |
|
|
LL | | use std::ptr::null;
|
|
LL | | use std::task::{Context, RawWaker, RawWakerVTable, Waker};
|
|
... |
|
|
LL | | drop(cx_ref);
|
|
LL | | });
|
|
| |_____- within this `{async block@$DIR/async-is-unwindsafe.rs:12:19: 29:6}`
|
|
|
|
|
= help: within `{async block@$DIR/async-is-unwindsafe.rs:12:19: 29:6}`, the trait `UnwindSafe` is not implemented for `&mut Context<'_>`
|
|
= note: `UnwindSafe` is implemented for `&Context<'_>`, but not for `&mut Context<'_>`
|
|
note: future does not implement `UnwindSafe` as this value is used across an await
|
|
--> $DIR/async-is-unwindsafe.rs:25:18
|
|
|
|
|
LL | let cx_ref = &mut cx;
|
|
| ------ has type `&mut Context<'_>` which does not implement `UnwindSafe`
|
|
LL |
|
|
LL | async {}.await; // this needs an inner await point
|
|
| ^^^^^ await occurs here, with `cx_ref` maybe used later
|
|
note: required by a bound in `is_unwindsafe`
|
|
--> $DIR/async-is-unwindsafe.rs:3:26
|
|
|
|
|
LL | fn is_unwindsafe(_: impl std::panic::UnwindSafe) {}
|
|
| ^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `is_unwindsafe`
|
|
|
|
error: aborting due to 1 previous error
|
|
|
|
For more information about this error, try `rustc --explain E0277`.
|