File: empty-never-array.rs

package info (click to toggle)
rustc 1.88.0%2Bdfsg1-2
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid
  • size: 934,168 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; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (20 lines) | stat: -rw-r--r-- 400 bytes parent folder | download | duplicates (8) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
//@ dont-require-annotations: NOTE

#![feature(never_type)]

enum Helper<T, U> {
    T(T, [!; 0]),
    #[allow(dead_code)]
    U(U),
}

fn transmute<T, U>(t: T) -> U {
    let Helper::U(u) = Helper::T(t, []);
    //~^ ERROR refutable pattern in local binding
    //~| NOTE `Helper::T(_, _)` not covered
    u
}

fn main() {
    println!("{:?}", transmute::<&str, (*const u8, u64)>("type safety"));
}