29 lines
860 B
Rust
29 lines
860 B
Rust
// Copyright 2015 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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pub struct Outer<T: Trait>(T);
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pub struct Inner<'a> { value: &'a bool }
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pub trait Trait {
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type Error;
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fn ready(self) -> Self::Error;
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}
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impl<'a> Trait for Inner<'a> {
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type Error = Outer<Inner<'a>>;
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fn ready(self) -> Outer<Inner<'a>> { Outer(self) }
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}
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fn main() {
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let value = true;
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let inner = Inner { value: &value };
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assert_eq!(inner.ready().0.value, &value);
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}
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