// 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. trait Foo { const NUM: usize; } impl Foo for i32 { const NUM: usize = 1; } const FOO: usize = ::NUM; fn main() { assert_eq!(1, FOO); match 1 { ::NUM => {}, _ => assert!(false) } }