rust/tests/ui/async-await/in-trait/send-on-async-fn-in-trait.rs

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

20 lines
422 B
Rust
Raw Normal View History

//@ run-rustfix
//@ edition: 2021
#![allow(unused)]
trait Foo {
async fn test() -> () {}
async fn test2() -> i32 { 1 + 2 }
}
fn bar<T: Foo>() {
fn needs_send(_: impl Send) {}
needs_send(T::test());
//~^ ERROR `impl Future<Output = ()>` cannot be sent between threads safely
needs_send(T::test2());
//~^ ERROR `impl Future<Output = i32>` cannot be sent between threads safely
}
fn main() {}