File: issue-74684-2.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, 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 (23 lines) | stat: -rw-r--r-- 460 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
 
trait Fun {
    type F<'a>: ?Sized;

    fn identity<'a>(t: &'a Self::F<'a>) -> &'a Self::F<'a> { t }
}

impl <T> Fun for T {
    type F<'a> = i32;
}

fn bug<'a, T: ?Sized + Fun<F<'a> = [u8]>>(t: Box<T>) -> &'static T::F<'a> {
    let a = [0; 1];
    let x = T::identity(&a); //~ ERROR: does not live long enough
    todo!()
}


fn main() {
    let x = 10;

    bug(Box::new(x));
      //~^ ERROR: type mismatch resolving `<{integer} as Fun>::F<'_> == [u8]`
}