47 lines
1.3 KiB
Rust
47 lines
1.3 KiB
Rust
// Copyright 2014 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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#![feature(slice_patterns)]
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struct Foo {
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string: &'static str
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}
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pub fn main() {
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let x = [
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Foo { string: "foo" },
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Foo { string: "bar" },
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Foo { string: "baz" }
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];
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match x {
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[ref first, ref tail..] => {
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assert_eq!(first.string, "foo");
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assert_eq!(tail.len(), 2);
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assert_eq!(tail[0].string, "bar");
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assert_eq!(tail[1].string, "baz");
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match *(tail as &[_]) {
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[Foo { .. }, _, Foo { .. }, ref _tail..] => {
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unreachable!();
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}
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[Foo { string: ref a }, Foo { string: ref b }] => {
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assert_eq!("bar", &a[0..a.len()]);
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assert_eq!("baz", &b[0..b.len()]);
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}
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_ => {
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unreachable!();
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}
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}
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}
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}
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}
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