File: const-match-pat.rs

package info (click to toggle)
rustc-web 1.70.0%2Bdfsg1-7~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,517,036 kB
  • sloc: xml: 147,962; javascript: 10,210; sh: 8,590; python: 8,220; ansic: 5,901; cpp: 4,635; makefile: 4,006; asm: 2,856
file content (21 lines) | stat: -rw-r--r-- 378 bytes parent folder | download | duplicates (6) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
// run-pass

#![allow(incomplete_features)]
#![feature(inline_const_pat)]
const MMIO_BIT1: u8 = 4;
const MMIO_BIT2: u8 = 5;

fn main() {
    let s = match read_mmio() {
        0 => "FOO",
        const { 1 << MMIO_BIT1 } => "BAR",
        const { 1 << MMIO_BIT2 } => "BAZ",
        _ => unreachable!(),
    };

    assert_eq!("BAZ", s);
}

fn read_mmio() -> i32 {
    1 << 5
}