src/test/ui/lifetimes/issue-76168-hr-outlives.rs

   1 // edition:2018
   2 // check-pass
   3
   4 #![feature(unboxed_closures)]
   5 use std::future::Future;
   6
   7 async fn wrapper<F>(f: F)
   8 where for<'a> F: FnOnce<(&'a mut i32,)>,
   9     for<'a> <F as FnOnce<(&'a mut i32,)>>::Output: Future<Output=()> + 'a
  10 {
  11     let mut i = 41;
  12     f(&mut i).await;
  13 }
  14
  15 async fn add_one(i: &mut i32) {
  16     *i = *i + 1;
  17 }
  18
  19 fn main() {}