| // Copyright 2016 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. |
| |
| // compile-pass |
| #![allow(dead_code)] |
| trait Make { |
| type Out; |
| |
| fn make() -> Self::Out; |
| } |
| |
| impl Make for () { |
| type Out = (); |
| |
| fn make() -> Self::Out {} |
| } |
| |
| // Also make sure we don't hit an ICE when the projection can't be known |
| fn f<T: Make>() -> <T as Make>::Out { loop {} } |
| |
| // ...and that it works with a blanket impl |
| trait Tr { |
| type Assoc; |
| } |
| |
| impl<T: Make> Tr for T { |
| type Assoc = (); |
| } |
| |
| fn g<T: Make>() -> <T as Tr>::Assoc { } |
| |
| fn main() {} |
