// 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 <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.

use std::marker::PhantomData;

struct TheType<T> {
    t: PhantomData<T>
}

pub trait TheTrait {
    type TheAssociatedType;
}

impl TheTrait for () {
    type TheAssociatedType = ();
}

pub trait Shape<P: TheTrait> {
    fn doit(&self) {
    }
}

impl<P: TheTrait> Shape<P> for TheType<P::TheAssociatedType> {
}

fn main() {
    let ball = TheType { t: PhantomData };
    let handle: &Shape<()> = &ball;
}