src/test/ui/async-await/in-trait/async-example-desugared.rs

   1 // check-pass
   2 // edition: 2021
   3
   4 #![feature(async_fn_in_trait)]
   5 #![feature(return_position_impl_trait_in_trait)]
   6 #![allow(incomplete_features)]
   7
   8 use std::future::Future;
   9
  10 trait MyTrait {
  11     async fn foo(&self) -> i32;
  12 }
  13
  14 impl MyTrait for i32 {
  15     fn foo(&self) -> impl Future<Output = i32> + '_ {
  16         async { *self }
  17     }
  18 }
  19
  20 fn main() {}