File: issue-90014.rs

package info (click to toggle)
rustc 1.86.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid
  • size: 913,560 kB
  • sloc: xml: 158,127; python: 35,921; javascript: 19,689; sh: 19,600; cpp: 18,906; ansic: 13,124; asm: 4,376; makefile: 708; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (23 lines) | stat: -rw-r--r-- 437 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
 
//@ edition:2018

#![feature(impl_trait_in_assoc_type)]

use std::future::Future;

trait MakeFut {
    type Fut<'a>
    where
        Self: 'a;
    fn make_fut<'a>(&'a self) -> Self::Fut<'a>;
}

impl MakeFut for &'_ mut () {
    type Fut<'a> = impl Future<Output = ()>;
    //~^ ERROR: the type `&mut ()` does not fulfill the required lifetime

    fn make_fut<'a>(&'a self) -> Self::Fut<'a> {
        async { () }
    }
}

fn main() {}