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25 lines
813 B
Rust
25 lines
813 B
Rust
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// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// The arity of `ref x` is always 1. If the pattern is compared to some non-structural type whose
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// arity is always 0, an ICE occurs.
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//
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// Related issue: #23009
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fn main() {
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let homura = [1, 2, 3];
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match homura {
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[1, ref madoka, 3] => (),
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[1, 2, 3] => (), //~ ERROR unreachable pattern
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[_, _, _] => (),
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}
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}
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