1 // Copyright 2013 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 // Tests "capabilities" granted by traits that inherit from super-
12 // builtin-kinds, e.g., if a trait requires Send to implement, then
13 // at usage site of that trait, we know we have the Send capability.
15 // pretty-expanded FIXME #23616
17 use std::sync::mpsc::{channel, Sender, Receiver};
21 impl <T: Send> Foo for T { }
23 fn foo<T: Foo + 'static>(val: T, chan: Sender<T>) {
24 chan.send(val).unwrap();
28 let (tx, rx): (Sender<int>, Receiver<int>) = channel();
30 assert!(rx.recv().unwrap() == 31337);