| // 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. |
| |
| |
| use std::unstable; |
| |
| struct Point {x: int, y: int, z: int} |
| |
| fn f(p: &mut Point) { p.z = 13; } |
| |
| pub fn main() { |
| unsafe { |
| let x = Some(unstable::sync::Exclusive::new(true)); |
| match x { |
| Some(ref z) if z.with(|b| *b) => { |
| do z.with |b| { assert!(*b); } |
| }, |
| _ => fail!() |
| } |
| } |
| } |
