src/test/ui/async-await/issue-64130-3-other.rs

   1 #![feature(optin_builtin_traits)]
   2 // edition:2018
   3
   4 // This tests the the unspecialized async-await-specific error when futures don't implement an
   5 // auto trait (which is not Send or Sync) due to some type that was captured.
   6
   7 auto trait Qux { }
   8
   9 struct Foo;
  10
  11 impl !Qux for Foo {}
  12
  13 fn is_qux<T: Qux>(t: T) { }
  14
  15 async fn bar() {
  16     let x = Foo;
  17     baz().await;
  18 }
  19
  20 async fn baz() { }
  21
  22 fn main() {
  23     is_qux(bar());
  24     //~^ ERROR the trait bound `Foo: Qux` is not satisfied in `impl std::future::Future`
  25 }