rust/src/test/run-pass/issue-26709.rs
2015-07-03 14:44:51 +02:00

27 lines
785 B
Rust

// Copyright 2015 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.
struct Wrapper<'a, T: ?Sized>(&'a mut i32, T);
impl<'a, T: ?Sized> Drop for Wrapper<'a, T> {
fn drop(&mut self) {
*self.0 = 432;
}
}
fn main() {
let mut x = 0;
{
let wrapper = Box::new(Wrapper(&mut x, 123));
let _: Box<Wrapper<Send>> = wrapper;
}
assert_eq!(432, x)
}