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 #![feature(optin_builtin_traits)]
13 use std::marker::Sync;
16 impl !Sync for NoSync {}
18 enum Foo { A(NoSync) }
20 fn bar<T: Sync>(_: T) {}
23 let x = Foo::A(NoSync);
25 //~^ ERROR `NoSync` cannot be shared between threads safely [E0277]