mirror of https://github.com/rust-lang/rust
75 lines
1.7 KiB
Rust
75 lines
1.7 KiB
Rust
//@ edition:2018
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fn take_u32(_x: u32) {}
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async fn make_u32() -> u32 {
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22
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}
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#[allow(unused)]
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async fn suggest_await_in_async_fn() {
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let x = make_u32();
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take_u32(x)
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider `await`ing on the `Future`
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//~| SUGGESTION .await
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}
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async fn dummy() {}
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#[allow(unused)]
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async fn suggest_await_in_async_fn_return() {
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dummy()
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//~^ ERROR mismatched types [E0308]
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//~| HELP consider `await`ing on the `Future`
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//~| HELP consider using a semicolon here
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//~| SUGGESTION .await
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}
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#[allow(unused)]
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async fn suggest_await_on_if() {
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let _x = if true {
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dummy()
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//~^ HELP consider `await`ing on the `Future`
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} else {
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dummy().await
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//~^ ERROR `if` and `else` have incompatible types [E0308]
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};
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}
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#[allow(unused)]
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async fn suggest_await_on_previous_match_arms() {
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let _x = match 0usize {
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0 => dummy(), //~ HELP consider `await`ing on the `Future`
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1 => dummy(),
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2 => dummy().await,
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//~^ `match` arms have incompatible types [E0308]
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};
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}
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#[allow(unused)]
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async fn suggest_await_on_match_expr() {
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let _x = match dummy() { //~ HELP consider `await`ing on the `Future`
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() => {} //~ ERROR mismatched types [E0308]
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};
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}
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async fn dummy_result() -> Result<(), ()> {
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Ok(())
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}
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#[allow(unused)]
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async fn suggest_await_in_generic_pattern() {
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match dummy_result() {
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//~^ HELP consider `await`ing on the `Future`
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//~| HELP consider `await`ing on the `Future`
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//~| SUGGESTION .await
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Ok(_) => {}
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//~^ ERROR mismatched types [E0308]
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Err(_) => {}
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//~^ ERROR mismatched types [E0308]
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}
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}
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fn main() {}
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