// Copyright 2013-2014 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // aux-build:issue_3907.rs extern crate issue_3907; type Foo = issue_3907::Foo; struct S { name: isize } impl Foo for S { //~ ERROR: `Foo` is not a trait //~| NOTE: expected trait, found type alias //~| NOTE: type aliases cannot be used for traits fn bar() { } } fn main() { let s = S { name: 0 }; s.bar(); }