| // Copyright 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. |
| |
| // pretty-expanded FIXME #23616 |
| |
| use std::ops::{Deref, DerefMut}; |
| |
| // Generic unique/owned smaht pointer. |
| struct Own<T> { |
| value: *mut T |
| } |
| |
| impl<T> Deref for Own<T> { |
| type Target = T; |
| |
| fn deref<'a>(&'a self) -> &'a T { |
| unsafe { &*self.value } |
| } |
| } |
| |
| impl<T> DerefMut for Own<T> { |
| fn deref_mut<'a>(&'a mut self) -> &'a mut T { |
| unsafe { &mut *self.value } |
| } |
| } |
| |
| struct Point { |
| x: isize, |
| y: isize |
| } |
| |
| impl Point { |
| fn get(&mut self) -> (isize, isize) { |
| (self.x, self.y) |
| } |
| } |
| |
| fn test0(mut x: Own<Point>) { |
| let _ = x.get(); |
| } |
| |
| fn test1(mut x: Own<Own<Own<Point>>>) { |
| let _ = x.get(); |
| } |
| |
| fn test2(mut x: Own<Own<Own<Point>>>) { |
| let _ = (**x).get(); |
| } |
| |
| fn main() {} |