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#![deny(unreachable_patterns)]
fn main() {
let s = &[0x00; 4][..]; //Slice of any value
const MAGIC_TEST: &[u8] = b"TEST"; //Const slice to pattern match with
match s {
MAGIC_TEST => (),
[0x00, 0x00, 0x00, 0x00] => (),
[84, 69, 83, 84] => (), //~ ERROR unreachable pattern
_ => (),
}
match s {
[0x00, 0x00, 0x00, 0x00] => (),
MAGIC_TEST => (),
[84, 69, 83, 84] => (), //~ ERROR unreachable pattern
_ => (),
}
match s {
[0x00, 0x00, 0x00, 0x00] => (),
[84, 69, 83, 84] => (),
MAGIC_TEST => (), //~ ERROR unreachable pattern
_ => (),
}
const FOO: [u8; 1] = [4];
match [99] {
[0x00] => (),
[4] => (),
FOO => (), //~ ERROR unreachable pattern
_ => (),
}
const BAR: &[u8; 1] = &[4];
match &[99] {
[0x00] => (),
[4] => (),
BAR => (), //~ ERROR unreachable pattern
b"a" => (),
_ => (),
}
const BOO: &[u8; 0] = &[];
match &[] {
[] => (),
BOO => (), //~ ERROR unreachable pattern
b"" => (), //~ ERROR unreachable pattern
_ => (), //~ ERROR unreachable pattern
}
}
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