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1 // Copyright 2015 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 // Make sure specialization cannot change impl polarity
13 #![feature(optin_builtin_traits)]
14 #![feature(specialization)]
21 impl !Foo
for u8 {}
//~ ERROR E0119
28 impl Bar
for u8 {}
//~ ERROR E0119