| // 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 |
| } |