// Copyright 2016 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 Make { type Out; fn make() -> Self::Out; } impl Make for () { type Out = (); fn make() -> Self::Out {} } // Also make sure we don't hit an ICE when the projection can't be known fn f() -> ::Out { loop {} } // ...and that it works with a blanket impl trait Tr { type Assoc; } impl Tr for T { type Assoc = (); } fn g() -> ::Assoc { } fn main() {}