| // 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. |
| |
| #![feature(box_syntax)] |
| |
| use std::cell::RefCell; |
| use std::rc::Rc; |
| |
| trait Foo { |
| fn set(&mut self, v: Rc<RefCell<A>>); |
| } |
| |
| struct B { |
| v: Option<Rc<RefCell<A>>> |
| } |
| |
| impl Foo for B { |
| fn set(&mut self, v: Rc<RefCell<A>>) |
| { |
| self.v = Some(v); |
| } |
| } |
| |
| struct A { |
| v: Box<Foo + Send>, |
| } |
| |
| fn main() { |
| let a = A {v: box B{v: None} as Box<Foo+Send>}; |
| //~^ ERROR `std::rc::Rc<std::cell::RefCell<A>>` cannot be sent between threads safely |
| } |
