37 lines
1.1 KiB
Rust
37 lines
1.1 KiB
Rust
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// Copyright 2012 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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// Test that structural match is only permitted with a feature gate,
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// and that if a feature gate is supplied, it permits the type to be
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// used in a match.
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// revisions: with_gate no_gate
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#![allow(dead_code)]
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#![deny(future_incompatible)]
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#![feature(rustc_attrs)]
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#![cfg_attr(with_gate, feature(structural_match))]
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#[structural_match] //[no_gate]~ ERROR semantics of constant patterns is not yet settled
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struct Foo {
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x: u32
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}
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const FOO: Foo = Foo { x: 0 };
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#[rustc_error]
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fn main() { //[with_gate]~ ERROR compilation successful
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let y = Foo { x: 1 };
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match y {
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FOO => { }
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_ => { }
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}
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}
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