File: equal-lifetime-params-ok.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 (19 lines) | stat: -rw-r--r-- 412 bytes parent folder | download | duplicates (11) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
//@ check-pass

// related to #113916, check that using RPITs in functions with lifetime params
// which are constrained to be equal compiles.

trait Trait<'a, 'b> {}
impl Trait<'_, '_> for () {}
fn pass<'a: 'b, 'b: 'a>() -> impl Trait<'a, 'b> {
    (|| {})()
}

struct Foo<'a>(&'a ());
impl<'a> Foo<'a> {
    fn bar<'b: 'a>(&'b self) -> impl Trait<'a, 'b> {
        let _: &'a &'b &'a ();
    }
}

fn main() {}