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rust/tests/ui/async-await/unnecessary-await.stderr

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Keep info on pre-desugaring expression for better "incorrect `.await`" suggestion Keep the `HirId` of `.await`ed expressions so in the case of a `fn` call on on a sync `fn`, we can suggest maybe turning it into an `async fn`.
2021-11-16 20:07:23 +00:00
error[E0277]: `()` is not a future
Tweak await span
2023-04-25 18:59:16 +00:00
--> $DIR/unnecessary-await.rs:9:11
Keep info on pre-desugaring expression for better "incorrect `.await`" suggestion Keep the `HirId` of `.await`ed expressions so in the case of a `fn` call on on a sync `fn`, we can suggest maybe turning it into an `async fn`.
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|
LL | boo().await;
Tweak await span
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| ----- ^^^^^ `()` is not a future
Keep info on pre-desugaring expression for better "incorrect `.await`" suggestion Keep the `HirId` of `.await`ed expressions so in the case of a `fn` call on on a sync `fn`, we can suggest maybe turning it into an `async fn`.
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| |
| this call returns `()`
|
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.
2024-01-29 18:31:02 +00:00
= help: the trait `Future` is not implemented for `()`, which is required by `(): IntoFuture`
Fix rebase and clippy tests
2021-11-16 22:06:25 +00:00
= note: () must be a future or must implement `IntoFuture` to be awaited
Reword "Required because of the requirements on the impl of ..."
2022-08-15 20:31:37 +00:00
= note: required for `()` to implement `IntoFuture`
review comment: change wording of suggestion
2021-12-10 03:01:37 +00:00
help: remove the `.await`
Keep info on pre-desugaring expression for better "incorrect `.await`" suggestion Keep the `HirId` of `.await`ed expressions so in the case of a `fn` call on on a sync `fn`, we can suggest maybe turning it into an `async fn`.
2021-11-16 20:07:23 +00:00
|
LL - boo().await;
LL + boo();
diagnostics: fix trailing space
2022-06-08 17:34:57 +00:00
|
Keep info on pre-desugaring expression for better "incorrect `.await`" suggestion Keep the `HirId` of `.await`ed expressions so in the case of a `fn` call on on a sync `fn`, we can suggest maybe turning it into an `async fn`.
2021-11-16 20:07:23 +00:00
help: alternatively, consider making `fn boo` asynchronous
|
review comments
2021-12-02 23:41:45 +00:00
LL | async fn boo() {}
Keep info on pre-desugaring expression for better "incorrect `.await`" suggestion Keep the `HirId` of `.await`ed expressions so in the case of a `fn` call on on a sync `fn`, we can suggest maybe turning it into an `async fn`.
2021-11-16 20:07:23 +00:00
| +++++
Make async removal span more resilient to macro expansions
2023-04-27 17:40:55 +00:00
error[E0277]: `()` is not a future
--> $DIR/unnecessary-await.rs:28:10
|
LL | e!().await;
| -^^^^^
| ||
| |`()` is not a future
| help: remove the `.await`
|
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.
2024-01-29 18:31:02 +00:00
= help: the trait `Future` is not implemented for `()`, which is required by `(): IntoFuture`
Make async removal span more resilient to macro expansions
2023-04-27 17:40:55 +00:00
= note: () must be a future or must implement `IntoFuture` to be awaited
= note: required for `()` to implement `IntoFuture`
error[E0277]: `()` is not a future
--> $DIR/unnecessary-await.rs:22:15
|
LL | $expr.await
| ^^^^^
| |
| `()` is not a future
| remove the `.await`
...
LL | f!(());
| ------ in this macro invocation
|
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.
2024-01-29 18:31:02 +00:00
= help: the trait `Future` is not implemented for `()`, which is required by `(): IntoFuture`
Make async removal span more resilient to macro expansions
2023-04-27 17:40:55 +00:00
= note: () must be a future or must implement `IntoFuture` to be awaited
= note: required for `()` to implement `IntoFuture`
= note: this error originates in the macro `f` (in Nightly builds, run with -Z macro-backtrace for more info)
fix spans for removing `.await` on `for` expressions
2023-10-21 11:16:09 +00:00
error[E0277]: `()` is not a future
--> $DIR/unnecessary-await.rs:36:20
|
LL | for x in [] {}.await
| -^^^^^
| ||
| |`()` is not a future
| help: remove the `.await`
|
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.
2024-01-29 18:31:02 +00:00
= help: the trait `Future` is not implemented for `()`, which is required by `(): IntoFuture`
fix spans for removing `.await` on `for` expressions
2023-10-21 11:16:09 +00:00
= note: () must be a future or must implement `IntoFuture` to be awaited
= note: required for `()` to implement `IntoFuture`
error: aborting due to 4 previous errors
Keep info on pre-desugaring expression for better "incorrect `.await`" suggestion Keep the `HirId` of `.await`ed expressions so in the case of a `fn` call on on a sync `fn`, we can suggest maybe turning it into an `async fn`.
2021-11-16 20:07:23 +00:00
For more information about this error, try `rustc --explain E0277`.
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