| // Copyright 2012-2014 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. |
| |
| // Test that destructor on a struct runs successfully after the struct |
| // is boxed and converted to an object. |
| |
| |
| #![allow(unknown_features)] |
| #![feature(box_syntax)] |
| |
| static mut value: usize = 0; |
| |
| struct Cat { |
| name : usize, |
| } |
| |
| trait Dummy { |
| fn get(&self) -> usize; |
| } |
| |
| impl Dummy for Cat { |
| fn get(&self) -> usize { self.name } |
| } |
| |
| impl Drop for Cat { |
| fn drop(&mut self) { |
| unsafe { value = self.name; } |
| } |
| } |
| |
| pub fn main() { |
| { |
| let x = box Cat {name: 22}; |
| let nyan: Box<Dummy> = x as Box<Dummy>; |
| } |
| unsafe { |
| assert_eq!(value, 22); |
| } |
| } |