File: non-exhaustive.rs

package info (click to toggle)
rustc 1.88.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 934,128 kB
  • sloc: xml: 158,127; python: 36,062; javascript: 19,855; sh: 19,700; cpp: 18,947; ansic: 12,993; asm: 4,792; makefile: 690; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (28 lines) | stat: -rw-r--r-- 869 bytes parent folder | download | duplicates (7)
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
//! Test non-exhaustive matches involving deref patterns.
#![feature(deref_patterns)]
#![expect(incomplete_features)]
#![deny(unreachable_patterns)]

fn main() {
    match Box::new(false) {
        //~^ ERROR non-exhaustive patterns: `deref!(true)` not covered
        false => {}
    }

    match Box::new(Box::new(false)) {
        //~^ ERROR non-exhaustive patterns: `deref!(deref!(false))` not covered
        true => {}
    }

    match Box::new((true, Box::new(false))) {
        //~^ ERROR non-exhaustive patterns: `deref!((false, deref!(false)))` and `deref!((true, deref!(true)))` not covered
        (true, false) => {}
        (false, true) => {}
    }

    enum T { A, B, C }
    match Box::new((Box::new(T::A), Box::new(T::A))) {
        //~^ ERROR non-exhaustive patterns: `deref!((deref!(T::C), _))` not covered
        (T::A | T::B, T::C) => {}
    }
}