27 lines
814 B
Rust
27 lines
814 B
Rust
// Copyright 2012 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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trait repeat<A> { fn get(&self) -> A; }
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impl<A:Copy> repeat<A> for @A {
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fn get(&self) -> A { **self }
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}
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fn repeater<A:Copy>(v: @A) -> @repeat<A> {
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// Note: owned kind is not necessary as A appears in the trait type
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@v as @repeat<A> // No
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}
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pub fn main() {
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let x = &3;
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let y = repeater(@x);
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assert_eq!(*x, *(y.get()));
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}
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