mirror of https://github.com/rust-lang/rust
29 lines
425 B
Rust
29 lines
425 B
Rust
//@ edition:2018
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//@ run-pass
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trait Foo { }
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impl Foo for () { }
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impl<'a, T> Foo for &'a mut T where T: Foo { }
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async fn foo_async<T>(_v: T) -> u8 where T: Foo {
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0
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}
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async fn bad<T>(v: T) -> u8 where T: Foo {
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foo_async(v).await
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}
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async fn async_main() {
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let mut v = ();
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let _ = bad(&mut v).await;
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let _ = foo_async(&mut v).await;
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let _ = bad(v).await;
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}
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fn main() {
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let _ = async_main();
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}
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