58 lines
1.2 KiB
Rust
58 lines
1.2 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// pretty-expanded FIXME #23616
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use std::ops::{Deref, DerefMut};
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// Generic unique/owned smaht pointer.
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struct Own<T> {
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value: *mut T
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}
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impl<T> Deref for Own<T> {
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type Target = T;
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fn deref<'a>(&'a self) -> &'a T {
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unsafe { &*self.value }
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}
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}
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impl<T> DerefMut for Own<T> {
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fn deref_mut<'a>(&'a mut self) -> &'a mut T {
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unsafe { &mut *self.value }
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}
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}
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struct Point {
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x: isize,
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y: isize
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}
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impl Point {
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fn get(&mut self) -> (isize, isize) {
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(self.x, self.y)
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}
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}
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fn test0(mut x: Own<Point>) {
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let _ = x.get();
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}
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fn test1(mut x: Own<Own<Own<Point>>>) {
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let _ = x.get();
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}
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fn test2(mut x: Own<Own<Own<Point>>>) {
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let _ = (**x).get();
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}
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fn main() {}
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