tests/ui/async-await/in-trait/missing-send-bound.rs

   1 // edition:2021
   2 // [next] compile-flags: -Zlower-impl-trait-in-trait-to-assoc-ty
   3 // revisions: current next
   4
   5 #![feature(async_fn_in_trait)]
   6 //~^ WARN the feature `async_fn_in_trait` is incomplete and may not be safe to use and/or cause compiler crashes
   7
   8 trait Foo {
   9     async fn bar();
  10 }
  11
  12 async fn test<T: Foo>() {
  13     T::bar().await;
  14 }
  15
  16 fn test2<T: Foo>() {
  17     assert_is_send(test::<T>());
  18     //~^ ERROR future cannot be sent between threads safely
  19 }
  20
  21 fn assert_is_send(_: impl Send) {}
  22
  23 fn main() {}