File: issue-64848.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 (29 lines) | stat: -rw-r--r-- 408 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
20
21
22
23
24
25
26
27
28
29
 
//@ build-pass

trait AssociatedConstant {
    const DATA: ();
}

impl<F, T> AssociatedConstant for F
where
    F: FnOnce() -> T,
    T: AssociatedConstant,
{
    const DATA: () = T::DATA;
}

impl AssociatedConstant for () {
    const DATA: () = ();
}

fn foo() -> impl AssociatedConstant {
    ()
}

fn get_data<T: AssociatedConstant>(_: T) -> &'static () {
    &T::DATA
}

fn main() {
    get_data(foo);
}