src/test/run-pass/issue-26709.rs

   1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 struct Wrapper<'a, T: ?Sized>(&'a mut i32, T);
  12
  13 impl<'a, T: ?Sized> Drop for Wrapper<'a, T> {
  14     fn drop(&mut self) {
  15         *self.0 = 432;
  16     }
  17 }
  18
  19 fn main() {
  20     let mut x = 0;
  21     {
  22         let wrapper = Box::new(Wrapper(&mut x, 123));
  23         let _: Box<Wrapper<Send>> = wrapper;
  24     }
  25     assert_eq!(432, x)
  26 }