rust/tests/ui/threads-sendsync/task-comm-11.rs
许杰友 Jieyou Xu (Joe) 95ff642797 tests: remove //@ pretty-expanded usages
Done with

```bash
sd '//@ pretty-expanded.*\n' '' tests/ui/**/*.rs
```

and

```
sd '//@pretty-expanded.*\n' '' tests/ui/**/*.rs
```
2024-11-26 02:50:48 +08:00

18 lines
369 B
Rust

//@ run-pass
#![allow(unused_must_use)]
//@ needs-threads
use std::sync::mpsc::{channel, Sender};
use std::thread;
fn start(tx: &Sender<Sender<isize>>) {
let (tx2, _rx) = channel();
tx.send(tx2).unwrap();
}
pub fn main() {
let (tx, rx) = channel();
let child = thread::spawn(move || start(&tx));
let _tx = rx.recv().unwrap();
child.join();
}