File: mono-impossible-2.rs

package info (click to toggle)
rustc 1.87.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 925,564 kB
  • sloc: xml: 158,127; python: 36,039; javascript: 19,761; sh: 19,737; cpp: 18,981; ansic: 13,133; asm: 4,376; makefile: 710; perl: 29; lisp: 28; ruby: 19; sql: 11
file content (19 lines) | stat: -rw-r--r-- 394 bytes parent folder | download | duplicates (15) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
//@compile-flags: --crate-type=lib -Clink-dead-code=on
//@ build-pass

// Make sure that we don't monomorphize the impossible method `<() as Visit>::visit`,
// which does not hold under a reveal-all param env.

pub trait Visit {
    fn visit() {}
}

pub trait Array {
    type Element;
}

impl<'a> Visit for () where (): Array<Element = &'a ()> {}

impl Array for () {
    type Element = ();
}