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// Copyright 2013 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.
#![feature(struct_variant)]
enum Enum {
Foo { foo: uint },
Bar { bar: uint }
}
fn fun1(e1: &Enum, e2: &Enum) -> uint {
match (e1, e2) {
(&Foo { foo: _ }, &Foo { foo: _ }) => 0,
(&Foo { foo: _ }, &Bar { bar: _ }) => 1,
(&Bar { bar: _ }, &Bar { bar: _ }) => 2,
(&Bar { bar: _ }, &Foo { foo: _ }) => 3,
}
}
fn fun2(e1: &Enum, e2: &Enum) -> uint {
match (e1, e2) {
(&Foo { foo: _ }, &Foo { foo: _ }) => 0,
(&Foo { foo: _ }, _ ) => 1,
(&Bar { bar: _ }, &Bar { bar: _ }) => 2,
(&Bar { bar: _ }, _ ) => 3,
}
}
pub fn main() {
let foo = Foo { foo: 1 };
let bar = Bar { bar: 1 };
assert_eq!(fun1(&foo, &foo), 0);
assert_eq!(fun1(&foo, &bar), 1);
assert_eq!(fun1(&bar, &bar), 2);
assert_eq!(fun1(&bar, &foo), 3);
assert_eq!(fun2(&foo, &foo), 0);
assert_eq!(fun2(&foo, &bar), 1); // fun2 returns 0
assert_eq!(fun2(&bar, &bar), 2);
assert_eq!(fun2(&bar, &foo), 3); // fun2 returns 2
}
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