rust/tests/ui/async-await/in-trait/missing-send-bound.rs
2023-03-21 13:18:32 -03:00

24 lines
504 B
Rust

// edition:2021
// [next] compile-flags: -Zlower-impl-trait-in-trait-to-assoc-ty
// revisions: current next
#![feature(async_fn_in_trait)]
//~^ WARN the feature `async_fn_in_trait` is incomplete and may not be safe to use and/or cause compiler crashes
trait Foo {
async fn bar();
}
async fn test<T: Foo>() {
T::bar().await;
}
fn test2<T: Foo>() {
assert_is_send(test::<T>());
//~^ ERROR future cannot be sent between threads safely
}
fn assert_is_send(_: impl Send) {}
fn main() {}