39 lines
893 B
Rust
39 lines
893 B
Rust
// ignore-tidy-linelength
|
|
// edition:2021
|
|
// revisions: classic next
|
|
//[next] compile-flags: -Znext-solver
|
|
//[next] check-pass
|
|
//[classic] known-bug: #112347
|
|
//[classic] build-fail
|
|
//[classic] failure-status: 101
|
|
//[classic] normalize-stderr-test "note: .*\n\n" -> ""
|
|
//[classic] normalize-stderr-test "thread 'rustc' panicked.*\n.*\n" -> ""
|
|
//[classic] normalize-stderr-test "(error: internal compiler error: [^:]+):\d+:\d+: " -> "$1:LL:CC: "
|
|
//[classic] rustc-env:RUST_BACKTRACE=0
|
|
|
|
#![feature(unboxed_closures)]
|
|
|
|
use std::future::Future;
|
|
|
|
trait Trait {
|
|
fn func(&self, _: &str);
|
|
}
|
|
|
|
impl<T> Trait for T
|
|
where
|
|
for<'a> T: Fn<(&'a str,)> + Send + Sync,
|
|
for<'a> <T as FnOnce<(&'a str,)>>::Output: Future<Output = usize> + Send,
|
|
{
|
|
fn func(&self, _: &str) {
|
|
println!("hello!");
|
|
}
|
|
}
|
|
|
|
async fn strlen(x: &str) -> usize {
|
|
x.len()
|
|
}
|
|
|
|
fn main() {
|
|
strlen.func("hi");
|
|
}
|