| // Copyright 2014 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. |
| |
| // Tests that an `&` pointer to something inherently mutable is itself |
| // to be considered mutable. |
| |
| #![feature(optin_builtin_traits)] |
| |
| use std::marker::Sync; |
| |
| struct NoSync; |
| impl !Sync for NoSync {} |
| |
| enum Foo { A(NoSync) } |
| |
| fn bar<T: Sync>(_: T) {} |
| |
| fn main() { |
| let x = Foo::A(NoSync); |
| bar(&x); //~ ERROR the trait `core::marker::Sync` is not implemented |
| } |
