| // Copyright 2015 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(slice_patterns)] |
| |
| // The arity of `ref x` is always 1. If the pattern is compared to some non-structural type whose |
| // arity is always 0, an ICE occurs. |
| // |
| // Related issue: #23009 |
| |
| fn main() { |
| let homura = [1, 2, 3]; |
| |
| match homura { |
| [1, ref madoka, 3] => (), |
| [1, 2, 3] => (), //~ ERROR unreachable pattern |
| [_, _, _] => (), |
| } |
| } |
