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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 CONST_REF: &[u8; 3] = b"foo";
trait Foo {
const CONST_REF_DEFAULT: &'static [u8; 3] = b"bar";
const CONST_REF: &'static [u8; 3];
}
impl Foo for i32 {
const CONST_REF: &'static [u8; 3] = b"jjj";
}
impl Foo for i64 {
const CONST_REF_DEFAULT: &'static [u8; 3] = b"ggg";
const CONST_REF: &'static [u8; 3] = b"fff";
}
// Check that (associated and free) const references are not mistaken for a
// non-reference pattern (in which case they would be auto-dereferenced, making
// the types mismatched).
fn const_ref() -> bool {
let f = b"foo";
match f {
CONST_REF => true,
_ => false,
}
}
fn associated_const_ref() -> bool {
match (b"bar", b"jjj", b"ggg", b"fff") {
(i32::CONST_REF_DEFAULT, i32::CONST_REF, i64::CONST_REF_DEFAULT, i64::CONST_REF) => true,
_ => false,
}
}
pub fn main() {
assert!(const_ref());
assert!(associated_const_ref());
}
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