| // Copyright 2012 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. |
| |
| |
| #![allow(unknown_features)] |
| #![feature(box_syntax)] |
| |
| #[derive(Clone)] |
| struct Triple { |
| x: isize, |
| y: isize, |
| z: isize, |
| } |
| |
| fn test(x: bool, foo: Box<Triple>) -> isize { |
| let bar = foo; |
| let mut y: Box<Triple>; |
| if x { y = bar; } else { y = box Triple {x: 4, y: 5, z: 6}; } |
| return y.y; |
| } |
| |
| pub fn main() { |
| let x: Box<_> = box Triple{x: 1, y: 2, z: 3}; |
| for _ in 0_usize..10000_usize { |
| assert_eq!(test(true, x.clone()), 2); |
| } |
| assert_eq!(test(false, x), 5); |
| } |
