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suggest await on unexpected types

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This commit is contained in:
csmoe 2020-08-20 18:42:08 +08:00
parent 2271b081eb
commit 8ee206a80d
6 changed files with 126 additions and 32 deletions
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5
src/test/ui/async-await/issue-61076.rs
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@ -64,5 +64,10 @@ async fn baz() -> Result<(), ()> {
Ok(())
}
async fn match_() {
match tuple() {
Tuple(_) => {} //~ ERROR mismatched types
}
}
fn main() {}

46
src/test/ui/async-await/issue-61076.stderr
View file

@ -26,28 +26,52 @@ error[E0609]: no field `0` on type `impl std::future::Future`
--> $DIR/issue-61076.rs:58:26
|
LL | let _: i32 = tuple().0;
| --------^
| |
| help: consider await before field access: `tuple().await.0`
| ^
|
help: consider awaiting before field access
|
LL | let _: i32 = tuple().await.0;
| ^^^^^^
error[E0609]: no field `a` on type `impl std::future::Future`
--> $DIR/issue-61076.rs:60:28
|
LL | let _: i32 = struct_().a;
| ----------^
| |
| help: consider await before field access: `struct_().await.a`
| ^
|
help: consider awaiting before field access
|
LL | let _: i32 = struct_().await.a;
| ^^^^^^
error[E0599]: no method named `method` found for opaque type `impl std::future::Future` in the current scope
--> $DIR/issue-61076.rs:62:15
|
LL | struct_().method();
| ^^^^^^ method not found in `impl std::future::Future`
|
help: consider awaiting before this method call
|
LL | struct_().await.method();
| ^^^^^^
| |
| method not found in `impl std::future::Future`
| help: consider await before this method call: `await.method`
error: aborting due to 5 previous errors
error[E0308]: mismatched types
--> $DIR/issue-61076.rs:69:9
|
LL | async fn tuple() -> Tuple {
| ----- the `Output` of this `async fn`'s expected opaque type
...
LL | Tuple(_) => {}
| ^^^^^^^^ expected opaque type, found struct `Tuple`
|
= note: expected opaque type `impl std::future::Future`
found struct `Tuple`
help: consider awaiting on the future
|
LL | match tuple().await {
| ^^^^^^
Some errors have detailed explanations: E0277, E0599, E0609.
error: aborting due to 6 previous errors
Some errors have detailed explanations: E0277, E0308, E0599, E0609.
For more information about an error, try `rustc --explain E0277`.