diff options
Diffstat (limited to 'tests/ui/async-await/higher-ranked-auto-trait-10.rs')
| -rw-r--r-- | tests/ui/async-await/higher-ranked-auto-trait-10.rs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/tests/ui/async-await/higher-ranked-auto-trait-10.rs b/tests/ui/async-await/higher-ranked-auto-trait-10.rs new file mode 100644 index 00000000000..4bfa27961ab --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-10.rs @@ -0,0 +1,35 @@ +// Repro for <https://github.com/rust-lang/rust/issues/92415#issue-1090723521>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] known-bug: unknown +//@[no_assumptions] known-bug: #110338 + +use std::any::Any; +use std::future::Future; + +trait Foo<'a>: Sized { + type Error; + fn foo(x: &'a str) -> Result<Self, Self::Error>; +} + +impl<'a> Foo<'a> for &'a str { + type Error = (); + + fn foo(x: &'a str) -> Result<Self, Self::Error> { + Ok(x) + } +} + +async fn get_foo<'a, T>(x: &'a str) -> Result<T, <T as Foo<'a>>::Error> +where + T: Foo<'a>, +{ + Foo::foo(x) +} + +fn bar<'a>(x: &'a str) -> Box<dyn Future<Output = Result<&'a str, ()>> + Send + 'a> { + Box::new(async move { get_foo(x).await }) +} + +fn main() {} |
