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
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
//@ run-pass
//@ needs-unwind
#![feature(coroutines, coroutine_trait)]
use std::ops::Coroutine;
use std::panic;
use std::pin::Pin;
use std::sync::atomic::{AtomicUsize, Ordering};
static A: AtomicUsize = AtomicUsize::new(0);
struct B;
impl Drop for B {
fn drop(&mut self) {
A.fetch_add(1, Ordering::SeqCst);
}
}
fn bool_true() -> bool {
true
}
fn main() {
let b = B;
let mut foo = || {
if bool_true() {
panic!();
}
drop(b);
yield;
};
assert_eq!(A.load(Ordering::SeqCst), 0);
let res = panic::catch_unwind(panic::AssertUnwindSafe(|| {
Pin::new(&mut foo).resume(())
}));
assert!(res.is_err());
assert_eq!(A.load(Ordering::SeqCst), 1);
let mut foo = || {
if bool_true() {
panic!();
}
drop(B);
yield;
};
assert_eq!(A.load(Ordering::SeqCst), 1);
let res = panic::catch_unwind(panic::AssertUnwindSafe(|| {
Pin::new(&mut foo).resume(())
}));
assert!(res.is_err());
assert_eq!(A.load(Ordering::SeqCst), 1);
}
|
