1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 #![allow(non_snake_case)]
13 #[derive(Copy, Clone)]
14 enum Q { R(Option<usize>) }
16 fn xyzzy(q: Q) -> usize {
18 Q::R(S) if S.is_some() => { 0 }
25 assert_eq!(xyzzy(Q::R(Some(5))), 0);