rust/tests/ui/async-await/issue-74497-lifetime-in-opaque.rs
2023-01-11 09:32:08 +00:00

20 lines
377 B
Rust

// edition:2018
// test that names give to anonymous lifetimes in opaque types like `impl Future` are correctly
// introduced in error messages
use std::future::Future;
pub async fn foo<F, T>(_: F)
where
F: Fn(&u8) -> T,
T: Future<Output = ()>,
{
}
pub async fn bar(_: &u8) {}
fn main() {
let _ = foo(|x| bar(x)); //~ ERROR lifetime may not live long enough
}