| // 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. |
| |
| // pretty-expanded FIXME #23616 |
| |
| pub trait Borrow<Borrowed: ?Sized> { |
| fn borrow(&self) -> &Borrowed; |
| } |
| |
| impl<T: Sized> Borrow<T> for T { |
| fn borrow(&self) -> &T { self } |
| } |
| |
| trait Foo { |
| fn foo(&self, other: &Self); |
| } |
| |
| fn bar<K, Q>(k: &K, q: &Q) where K: Borrow<Q>, Q: Foo { |
| q.foo(k.borrow()) |
| } |
| |
| struct MyTree<K>(K); |
| |
| impl<K> MyTree<K> { |
| // This caused a failure in #18906 |
| fn bar<Q>(k: &K, q: &Q) where K: Borrow<Q>, Q: Foo { |
| q.foo(k.borrow()) |
| } |
| } |
| |
| fn main() {} |
