rust/src/test/run-pass/issue-14875.rs

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2016-08-30 05:01:08 -05:00
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// Check that values are not leaked when a dtor panics (#14875)
use std::panic::{self, UnwindSafe};
struct SetInnerOnDrop<'a>(&'a mut bool);
impl<'a> UnwindSafe for SetInnerOnDrop<'a> {}
impl<'a> Drop for SetInnerOnDrop<'a> {
fn drop(&mut self) {
*self.0 = true;
}
}
struct PanicOnDrop;
impl Drop for PanicOnDrop {
fn drop(&mut self) {
panic!("test panic");
}
}
fn main() {
let mut set_on_drop = false;
{
let set_inner_on_drop = SetInnerOnDrop(&mut set_on_drop);
let _ = panic::catch_unwind(|| {
let _set_inner_on_drop = set_inner_on_drop;
let _panic_on_drop = PanicOnDrop;
});
}
assert!(set_on_drop);
}