2013-08-16 23:22:06 -05:00
|
|
|
// Copyright 2013 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.
|
|
|
|
|
2013-10-10 10:45:52 -05:00
|
|
|
use std::rc::RcMut;
|
2013-08-16 23:22:06 -05:00
|
|
|
|
|
|
|
trait Foo
|
|
|
|
{
|
|
|
|
fn set(&mut self, v: RcMut<A>);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct B
|
|
|
|
{
|
|
|
|
v: Option<RcMut<A>>
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Foo for B
|
|
|
|
{
|
|
|
|
fn set(&mut self, v: RcMut<A>)
|
|
|
|
{
|
|
|
|
self.v = Some(v);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
struct A
|
|
|
|
{
|
|
|
|
v: ~Foo,
|
|
|
|
}
|
|
|
|
|
|
|
|
fn main()
|
|
|
|
{
|
|
|
|
let a = A {v: ~B{v: None} as ~Foo}; //~ ERROR cannot pack type `~B`, which does not fulfill `Send`
|
2013-10-10 10:45:52 -05:00
|
|
|
let v = RcMut::new(a); //~ ERROR instantiating a type parameter with an incompatible type
|
2013-08-16 23:22:06 -05:00
|
|
|
let w = v.clone();
|
|
|
|
v.with_mut_borrow(|p| {p.v.set(w.clone());})
|
|
|
|
}
|