src/test/ui/async-await/issues/issue-55809.rs

   1 // edition:2018
   2 // run-pass
   3
   4 trait Foo { }
   5
   6 impl Foo for () { }
   7
   8 impl<'a, T> Foo for &'a mut T where T: Foo { }
   9
  10 async fn foo_async<T>(_v: T) -> u8 where T: Foo {
  11     0
  12 }
  13
  14 async fn bad<T>(v: T) -> u8 where T: Foo {
  15     foo_async(v).await
  16 }
  17
  18 async fn async_main() {
  19     let mut v = ();
  20
  21     let _ = bad(&mut v).await;
  22     let _ = foo_async(&mut v).await;
  23     let _ = bad(v).await;
  24 }
  25
  26 fn main() {
  27     let _ = async_main();
  28 }