rust/src/test/run-pass/box-pattern.rs

// Copyright 2012 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.

type foo = {a: int, b: uint};
enum bar { u(@foo), w(int), }

fn main() {
    assert (match u(@{a: 10, b: 40u}) {
              u(@{a: a, b: b}) => { a + (b as int) }
              _ => { 66 }
            } == 50);
}