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https://github.com/rust-lang/rust
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32 lines
897 B
Rust
32 lines
897 B
Rust
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// 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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#![feature(box_syntax)]
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#![feature(box_patterns)]
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#[derive(Debug, PartialEq)]
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enum Test {
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Foo(usize),
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Bar(isize),
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}
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fn main() {
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let a = box Test::Foo(10);
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let b = box Test::Bar(-20);
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match (a, b) {
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(_, box Test::Foo(_)) => unreachable!(),
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(box Test::Foo(x), b) => {
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assert_eq!(x, 10);
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assert_eq!(b, box Test::Bar(-20));
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},
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_ => unreachable!(),
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}
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}
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