1 // Copyright 2014 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.
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.
11 #![allow(unknown_features)]
12 #![feature(box_syntax)]
13 #![feature(unboxed_closures)]
15 use std::ops::{Deref, DerefMut};
19 static mut DESTRUCTOR_RAN: bool = false;
24 assert!(!DESTRUCTOR_RAN);
25 DESTRUCTOR_RAN = true;
33 fn deref(&self) -> &int {
34 let &X(box ref x) = self;
40 fn deref_mut(&mut self) -> &mut int {
41 let &mut X(box ref mut x) = self;
48 let mut test = X(box 5);
50 let mut change = || { *test = 10 };
53 assert_eq!(*test, 10);
55 assert!(unsafe { DESTRUCTOR_RAN });