mirror of https://github.com/rust-lang/rust
40 lines
650 B
Rust
40 lines
650 B
Rust
//@ edition:2018
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async fn foo () { }
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fn bar() -> impl std::future::Future { async {} }
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fn boo() {}
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async fn baz() -> std::io::Result<()> {
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foo().await;
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boo().await; //~ ERROR `()` is not a future
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bar().await;
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std::io::Result::Ok(())
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}
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macro_rules! e {
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() => {
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()
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};
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}
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macro_rules! f {
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($expr:expr) => {
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$expr.await
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//~^ ERROR `()` is not a future
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};
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}
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async fn with_macros() {
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e!().await;
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//~^ ERROR `()` is not a future
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f!(());
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}
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// Regression test for issue #117014.
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async fn desugaring_span_ctxt() {
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for x in [] {}.await //~ ERROR `()` is not a future
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}
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fn main() {}
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