rust/src/test/run-pass/issue-46920-byte-array-patterns.rs

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// Copyright 2017 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.
const CURSOR_PARTITION_LABEL: &'static [u8] = b"partition";
const CURSOR_EVENT_TYPE_LABEL: &'static [u8] = b"event_type";
const BYTE_PATTERN: &'static [u8; 5] = b"hello";
fn match_slice(x: &[u8]) -> u32 {
match x {
CURSOR_PARTITION_LABEL => 0,
CURSOR_EVENT_TYPE_LABEL => 1,
_ => 2,
}
}
fn match_array(x: &[u8; 5]) -> bool {
match x {
BYTE_PATTERN => true,
_ => false
}
}
fn main() {
assert_eq!(match_slice(b"abcde"), 2);
assert_eq!(match_slice(b"event_type"), 1);
assert_eq!(match_slice(b"partition"), 0);
assert_eq!(match_array(b"hello"), true);
assert_eq!(match_array(b"hella"), false);
}