48 lines
1007 B
Rust
48 lines
1007 B
Rust
// 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.
|
|
|
|
#[feature(managed_boxes)];
|
|
|
|
use std::cell::Cell;
|
|
|
|
struct r {
|
|
i: @Cell<int>,
|
|
}
|
|
|
|
#[unsafe_destructor]
|
|
impl Drop for r {
|
|
fn drop(&mut self) {
|
|
unsafe {
|
|
self.i.set(self.i.get() + 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
fn r(i: @Cell<int>) -> r {
|
|
r {
|
|
i: i
|
|
}
|
|
}
|
|
|
|
struct A {
|
|
y: r,
|
|
}
|
|
|
|
fn main() {
|
|
let i = @Cell::new(0);
|
|
{
|
|
// Can't do this copy
|
|
let x = ~~~A {y: r(i)};
|
|
let _z = x.clone(); //~ ERROR failed to find an implementation
|
|
info!("{:?}", x);
|
|
}
|
|
error!("{:?}", *i);
|
|
}
|