mirror of https://github.com/rust-lang/rust.git
28 lines
396 B
Rust
28 lines
396 B
Rust
//@ known-bug: #117808
|
|
//@ edition:2021
|
|
//@ needs-rustc-debug-assertions
|
|
|
|
use std::future::Future;
|
|
|
|
fn hrc<R, F: for<'a> AsyncClosure<'a, (), R>>(f: F) -> F {
|
|
f
|
|
}
|
|
|
|
fn main() {
|
|
hrc(|x| async {});
|
|
}
|
|
|
|
trait AsyncClosure<'a, I, R>
|
|
where
|
|
I: 'a,
|
|
{
|
|
}
|
|
|
|
impl<'a, I, R, Fut, F> AsyncClosure<'a, I, R> for F
|
|
where
|
|
I: 'a,
|
|
F: Fn(&'a I) -> Fut,
|
|
Fut: Future<Output = R> + Send + 'a,
|
|
{
|
|
}
|