37 lines
874 B
Rust
37 lines
874 B
Rust
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use std::marker::PhantomData;
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struct TheType<T> {
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t: PhantomData<T>
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}
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pub trait TheTrait {
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type TheAssociatedType;
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}
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impl TheTrait for () {
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type TheAssociatedType = ();
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}
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pub trait Shape<P: TheTrait> {
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fn doit(&self) {
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}
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}
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impl<P: TheTrait> Shape<P> for TheType<P::TheAssociatedType> {
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}
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fn main() {
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let ball = TheType { t: PhantomData };
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let handle: &Shape<()> = &ball;
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}
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