1 // Copyright 2012 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 #![feature(unsafe_destructor)]
16 use std::gc::{Gc, GC};
26 self.i.set(self.i.get() + 1);
31 fn r(i: Gc<Cell<int>>) -> r {
42 let i = box(GC) Cell::new(0);
45 let x = box box box A {y: r(i)};
46 let _z = x.clone(); //~ ERROR not implemented