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//@ run-pass
//@ needs-unwind
#![feature(coroutines, coroutine_trait, stmt_expr_attributes)]
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 = #[coroutine]
|| {
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 = #[coroutine]
|| {
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);
}
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