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Diffstat (limited to 'tests/ui/async-await/try-on-option-in-async.stderr')
-rw-r--r-- | tests/ui/async-await/try-on-option-in-async.stderr | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/tests/ui/async-await/try-on-option-in-async.stderr b/tests/ui/async-await/try-on-option-in-async.stderr new file mode 100644 index 000000000..4c7b4fa41 --- /dev/null +++ b/tests/ui/async-await/try-on-option-in-async.stderr @@ -0,0 +1,44 @@ +error[E0277]: the `?` operator can only be used in an async block that returns `Result` or `Option` (or another type that implements `FromResidual`) + --> $DIR/try-on-option-in-async.rs:8:10 + | +LL | / async { +LL | | let x: Option<u32> = None; +LL | | x?; + | | ^ cannot use the `?` operator in an async block that returns `{integer}` +LL | | 22 +LL | | } + | |_____- this function should return `Result` or `Option` to accept `?` + | + = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `{integer}` + +error[E0277]: the `?` operator can only be used in an async closure that returns `Result` or `Option` (or another type that implements `FromResidual`) + --> $DIR/try-on-option-in-async.rs:17:10 + | +LL | let async_closure = async || { + | __________________________________- +LL | | let x: Option<u32> = None; +LL | | x?; + | | ^ cannot use the `?` operator in an async closure that returns `u32` +LL | | 22_u32 +LL | | }; + | |_____- this function should return `Result` or `Option` to accept `?` + | + = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `u32` + +error[E0277]: the `?` operator can only be used in an async function that returns `Result` or `Option` (or another type that implements `FromResidual`) + --> $DIR/try-on-option-in-async.rs:26:6 + | +LL | async fn an_async_function() -> u32 { + | _____________________________________- +LL | | let x: Option<u32> = None; +LL | | x?; + | | ^ cannot use the `?` operator in an async function that returns `u32` +LL | | 22 +LL | | } + | |_- this function should return `Result` or `Option` to accept `?` + | + = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `u32` + +error: aborting due to 3 previous errors + +For more information about this error, try `rustc --explain E0277`. |