File: basic-switch.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, sid, trixie
  • size: 893,396 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (31 lines) | stat: -rw-r--r-- 592 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
22
23
24
25
26
27
28
29
30
31
// Test basic or-patterns when the target pattern type will be lowered to a
// `Switch` (an `enum`).

//@ run-pass

#[derive(Debug)]
enum Test {
    Foo,
    Bar,
    Baz,
    Qux,
}

fn test(x: Option<Test>) -> bool {
    match x {
        // most simple case
        Some(Test::Bar | Test::Qux) => true,
        // wild case
        Some(_) => false,
        // empty case
        None => false,
    }
}

fn main() {
    assert!(!test(Some(Test::Foo)));
    assert!(test(Some(Test::Bar)));
    assert!(!test(Some(Test::Baz)));
    assert!(test(Some(Test::Qux)));
    assert!(!test(None))
}