| // 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. |
| |
| // Test equality constraints on associated types in a where clause. |
| |
| pub trait ToInt { |
| fn to_int(&self) -> isize; |
| } |
| |
| pub trait GetToInt |
| { |
| type R; |
| |
| fn get(&self) -> <Self as GetToInt>::R; |
| } |
| |
| fn foo<G>(g: G) -> isize |
| where G : GetToInt |
| { |
| ToInt::to_int(&g.get()) //~ ERROR E0277 |
| } |
| |
| fn bar<G : GetToInt>(g: G) -> isize |
| where G::R : ToInt |
| { |
| ToInt::to_int(&g.get()) // OK |
| } |
| |
| pub fn main() { |
| } |
