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36 lines
809 B
Rust
36 lines
809 B
Rust
// Repro for <https://github.com/rust-lang/rust/issues/92415#issue-1090723521>.
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//@ edition: 2021
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//@ revisions: assumptions no_assumptions
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//@[assumptions] compile-flags: -Zhigher-ranked-assumptions
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//@[assumptions] known-bug: unknown
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//@[no_assumptions] known-bug: #110338
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use std::any::Any;
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use std::future::Future;
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trait Foo<'a>: Sized {
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type Error;
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fn foo(x: &'a str) -> Result<Self, Self::Error>;
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}
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impl<'a> Foo<'a> for &'a str {
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type Error = ();
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fn foo(x: &'a str) -> Result<Self, Self::Error> {
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Ok(x)
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}
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}
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async fn get_foo<'a, T>(x: &'a str) -> Result<T, <T as Foo<'a>>::Error>
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where
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T: Foo<'a>,
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{
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Foo::foo(x)
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}
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fn bar<'a>(x: &'a str) -> Box<dyn Future<Output = Result<&'a str, ()>> + Send + 'a> {
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Box::new(async move { get_foo(x).await })
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}
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fn main() {}
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