File: issue-90177.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 (32 lines) | stat: -rw-r--r-- 471 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
24
25
26
27
28
29
30
31
32
 
//@ check-pass

trait Base<'f> {
    type Assoc;

    fn do_something(&self);
}

trait ForAnyLifetime: for<'f> Base<'f> {}

impl<T> ForAnyLifetime for T where T: for<'f> Base<'f> {}

trait CanBeDynamic: ForAnyLifetime + for<'f> Base<'f, Assoc = ()> {}

fn foo(a: &dyn CanBeDynamic) {
    a.do_something();
}

struct S;

impl<'a> Base<'a> for S {
    type Assoc = ();

    fn do_something(&self) {}
}

impl CanBeDynamic for S {}

fn main() {
    let s = S;
    foo(&s);
}