1 // Copyright 2015 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 #![deny(unreachable_patterns)]
13 // The arity of `ref x` is always 1. If the pattern is compared to some non-structural type whose
14 // arity is always 0, an ICE occurs.
16 // Related issue: #23009
19 let homura = [1, 2, 3];
22 [1, ref _madoka, 3] => (),
23 [1, 2, 3] => (), //~ ERROR unreachable pattern