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// 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(specialization)]
// Make sure we *can* project non-defaulted associated types
// cf compile-fail/specialization-default-projection.rs
// First, do so without any use of specialization
trait Foo {
type Assoc;
}
impl<T> Foo for T {
type Assoc = ();
}
fn generic_foo<T>() -> <T as Foo>::Assoc {
()
}
// Next, allow for one layer of specialization
trait Bar {
type Assoc;
}
default impl<T> Bar for T {
type Assoc = ();
}
impl<T: Clone> Bar for T {
type Assoc = u8;
}
fn generic_bar_clone<T: Clone>() -> <T as Bar>::Assoc {
0u8
}
fn main() {
}
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