2012-12-10 19:32:48 -06:00
|
|
|
// 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.
|
|
|
|
|
2013-10-23 03:49:18 -05:00
|
|
|
#[feature(managed_boxes)];
|
|
|
|
|
2013-12-31 17:46:27 -06:00
|
|
|
use std::cell::Cell;
|
|
|
|
|
2012-08-15 20:46:55 -05:00
|
|
|
struct r {
|
2013-12-31 17:46:27 -06:00
|
|
|
i: @Cell<int>,
|
2012-11-14 00:22:37 -06:00
|
|
|
}
|
|
|
|
|
2013-03-20 20:18:57 -05:00
|
|
|
#[unsafe_destructor]
|
2013-02-14 13:47:00 -06:00
|
|
|
impl Drop for r {
|
2013-09-16 20:18:07 -05:00
|
|
|
fn drop(&mut self) {
|
2013-03-20 20:18:57 -05:00
|
|
|
unsafe {
|
2013-12-31 17:46:27 -06:00
|
|
|
self.i.set(self.i.get() + 1);
|
2013-03-20 20:18:57 -05:00
|
|
|
}
|
2012-11-14 00:22:37 -06:00
|
|
|
}
|
2012-05-23 12:15:06 -05:00
|
|
|
}
|
|
|
|
|
2013-12-31 17:46:27 -06:00
|
|
|
fn r(i: @Cell<int>) -> r {
|
2012-09-05 17:58:43 -05:00
|
|
|
r {
|
|
|
|
i: i
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-07-02 14:47:32 -05:00
|
|
|
struct A {
|
|
|
|
y: r,
|
|
|
|
}
|
|
|
|
|
2012-05-23 12:15:06 -05:00
|
|
|
fn main() {
|
2013-12-31 17:46:27 -06:00
|
|
|
let i = @Cell::new(0);
|
2012-05-23 12:15:06 -05:00
|
|
|
{
|
|
|
|
// Can't do this copy
|
2013-02-21 17:19:40 -06:00
|
|
|
let x = ~~~A {y: r(i)};
|
2013-07-02 14:47:32 -05:00
|
|
|
let _z = x.clone(); //~ ERROR failed to find an implementation
|
2013-10-21 15:08:31 -05:00
|
|
|
info!("{:?}", x);
|
2012-05-23 12:15:06 -05:00
|
|
|
}
|
2013-10-21 15:08:31 -05:00
|
|
|
error!("{:?}", *i);
|
2012-11-14 00:22:37 -06:00
|
|
|
}
|