rust/src/test/run-pass/bytes-macro-static.rs
Kevin Ballard bcabcf53cf Make bytes!() return 'static
Change `bytes!()` to return

    {
        static BYTES: &'static [u8] = &[...];
        BYTES
    }

This gives it the `'static` lifetime, whereas before it had an rvalue
lifetime. Until recently this would have prevented assigning `bytes!()`
to a static, as in

    static FOO: &'static [u8] = bytes!(1,2,3);

but #14183 fixed it so blocks are now allowed in constant expressions
(with restrictions).

Fixes #11641.
2014-05-18 13:03:38 -07:00

22 lines
721 B
Rust

// Copyright 2014 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.
static FOO: &'static [u8] = bytes!("hello, world");
pub fn main() {
let b = match true {
true => bytes!("test"),
false => unreachable!()
};
assert_eq!(b, "test".as_bytes());
assert_eq!(FOO, "hello, world".as_bytes());
}