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Suggest returning binding from block or enclosing scope on coerce_forced_unit error

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Michael Goulet 2022-07-19 02:54:51 +00:00
parent 475aec1188
commit b0a81904ce
10 changed files with 314 additions and 52 deletions
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18
src/test/ui/async-await/async-block-control-flow-static-semantics.stderr
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@ -18,6 +18,14 @@ LL | | break 0u8;
LL | | };
| |_________- enclosing `async` block
error[E0271]: type mismatch resolving `<impl Future<Output = u8> as Future>::Output == ()`
--> $DIR/async-block-control-flow-static-semantics.rs:26:39
|
LL | let _: &dyn Future<Output = ()> = &block;
| ^^^^^^ expected `()`, found `u8`
|
= note: required for the cast from `impl Future<Output = u8>` to the object type `dyn Future<Output = ()>`
error[E0308]: mismatched types
--> $DIR/async-block-control-flow-static-semantics.rs:21:58
|
@ -32,7 +40,7 @@ LL | | }
| |_^ expected `u8`, found `()`
error[E0271]: type mismatch resolving `<impl Future<Output = u8> as Future>::Output == ()`
--> $DIR/async-block-control-flow-static-semantics.rs:26:39
--> $DIR/async-block-control-flow-static-semantics.rs:17:39
|
LL | let _: &dyn Future<Output = ()> = &block;
| ^^^^^^ expected `()`, found `u8`
@ -47,14 +55,6 @@ LL | fn return_targets_async_block_not_fn() -> u8 {
| |
| implicitly returns `()` as its body has no tail or `return` expression
error[E0271]: type mismatch resolving `<impl Future<Output = u8> as Future>::Output == ()`
--> $DIR/async-block-control-flow-static-semantics.rs:17:39
|
LL | let _: &dyn Future<Output = ()> = &block;
| ^^^^^^ expected `()`, found `u8`
|
= note: required for the cast from `impl Future<Output = u8>` to the object type `dyn Future<Output = ()>`
error[E0308]: mismatched types
--> $DIR/async-block-control-flow-static-semantics.rs:47:44
|