| // Copyright 2015 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. |
| |
| #![feature(associated_type_defaults)] |
| |
| trait Foo<T> { |
| type Out = T; |
| fn foo(&self) -> Self::Out; |
| } |
| |
| impl Foo<u32> for () { |
| fn foo(&self) -> u32 { |
| 4u32 |
| } |
| } |
| |
| impl Foo<u64> for bool { |
| type Out = (); |
| fn foo(&self) {} |
| } |
| |
| fn main() { |
| assert_eq!(<() as Foo<u32>>::foo(&()), 4u32); |
| assert_eq!(<bool as Foo<u64>>::foo(&true), ()); |
| } |
