summaryrefslogtreecommitdiffstats
path: root/tests/ui/pattern/usefulness/slice-pattern-const-2.rs
blob: 4bf8d0fd2d306064ca283b6dc13e36c9e800d22a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
#![deny(unreachable_patterns)]

fn main() {
    let s = &[0x00; 4][..]; //Slice of any value
    const MAGIC_TEST: &[u32] = &[4, 5, 6, 7]; //Const slice to pattern match with
    match s {
        MAGIC_TEST => (),
        [0x00, 0x00, 0x00, 0x00] => (),
        [4, 5, 6, 7] => (), //~ ERROR unreachable pattern
        _ => (),
    }
    match s {
        [0x00, 0x00, 0x00, 0x00] => (),
        MAGIC_TEST => (),
        [4, 5, 6, 7] => (), //~ ERROR unreachable pattern
        _ => (),
    }
    match s {
        [0x00, 0x00, 0x00, 0x00] => (),
        [4, 5, 6, 7] => (),
        MAGIC_TEST => (), //~ ERROR unreachable pattern
        _ => (),
    }
    const FOO: [u32; 1] = [4];
    match [99] {
        [0x00] => (),
        [4] => (),
        FOO => (), //~ ERROR unreachable pattern
        _ => (),
    }
}