1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
// This used to compile the future down to ud2, due to uninhabited types being
// handled incorrectly in coroutines.
//@ compile-flags: -Copt-level=z -Cdebuginfo=2 --edition=2018
//@ run-pass
use std::future::Future;
use std::task::Poll;
use std::task::Context;
use std::pin::Pin;
use std::rc::Rc;
struct Never();
impl Future for Never {
type Output = ();
fn poll(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<Self::Output> {
Poll::Pending
}
}
fn main() {
let fut = async {
let _rc = Rc::new(()); // Also crashes with Arc
Never().await;
};
let _bla = fut; // Moving the future is required.
}
|
