mirror of https://github.com/rust-lang/rust
41 lines
729 B
Rust
41 lines
729 B
Rust
//@ run-pass
|
|
//@ needs-unwind
|
|
|
|
use std::panic;
|
|
|
|
impl<'a> panic::UnwindSafe for Foo<'a> {}
|
|
impl<'a> panic::RefUnwindSafe for Foo<'a> {}
|
|
|
|
struct Foo<'a>(&'a mut bool);
|
|
|
|
impl<'a> Drop for Foo<'a> {
|
|
fn drop(&mut self) {
|
|
*self.0 = true;
|
|
}
|
|
}
|
|
|
|
fn f<T: FnOnce()>(t: T) {
|
|
t()
|
|
}
|
|
|
|
fn main() {
|
|
let mut ran_drop = false;
|
|
{
|
|
let x = Foo(&mut ran_drop);
|
|
let x = move || { let _ = x; };
|
|
f(x);
|
|
}
|
|
assert!(ran_drop);
|
|
|
|
let mut ran_drop = false;
|
|
{
|
|
let x = Foo(&mut ran_drop);
|
|
let result = panic::catch_unwind(move || {
|
|
let x = move || { let _ = x; panic!() };
|
|
f(x);
|
|
});
|
|
assert!(result.is_err());
|
|
}
|
|
assert!(ran_drop);
|
|
}
|