| // 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_consts)] |
| |
| // The main purpose of this test is to ensure that different impls of the same |
| // trait can refer to each other without setting off the static recursion check |
| // (as long as there's no actual recursion). |
| |
| trait Foo { |
| const BAR: u32; |
| } |
| |
| struct IsFoo1; |
| |
| impl Foo for IsFoo1 { |
| const BAR: u32 = 1; |
| } |
| |
| struct IsFoo2; |
| |
| impl Foo for IsFoo2 { |
| const BAR: u32 = <IsFoo1 as Foo>::BAR; |
| } |
| |
| fn main() { |
| assert_eq!(<IsFoo1>::BAR, <IsFoo2 as Foo>::BAR); |
| } |