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 that even when a type parameter doesn't implement a required
12 // super-builtin-kind of a trait, if the type parameter is never used,
13 // the type can implement the trait anyway.
19 struct X<T> { marker: marker::PhantomData<T> }
21 impl<T:Send> Foo for X<T> { }