1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
12 #![feature(default_type_parameter_fallback)]
14 use std::marker::PhantomData;
24 struct Foo<X: Default = usize, Y = <X as Id>::This> {
25 data: PhantomData<(X, Y)>
28 impl<X: Default, Y> Foo<X, Y> {
29 fn new() -> Foo<X, Y> {
30 Foo { data: PhantomData }