1 // Copyright 2014 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 // Verify that UnsafeCell is *always* sync regardless if `T` is sync.
13 // ignore-tidy-linelength
15 use std::cell::UnsafeCell;
26 fn test<T: Sync>(s: T){
31 let us = UnsafeCell::new(MySync{u: UnsafeCell::new(0i)});
33 //~^ ERROR `core::marker::Sync` is not implemented
35 let uns = UnsafeCell::new(NoSync{m: marker::NoSync});
37 //~^ ERROR `core::marker::Sync` is not implemented
39 let ms = MySync{u: uns};
41 //~^ ERROR `core::marker::Sync` is not implemented
43 let ns = NoSync{m: marker::NoSync};
45 //~^ ERROR `core::marker::Sync` is not implemented