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Diffstat (limited to 'tests/ui/associated-type-bounds/return-type-notation/basic.rs')
-rw-r--r-- | tests/ui/associated-type-bounds/return-type-notation/basic.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tests/ui/associated-type-bounds/return-type-notation/basic.rs b/tests/ui/associated-type-bounds/return-type-notation/basic.rs new file mode 100644 index 000000000..0b7530b65 --- /dev/null +++ b/tests/ui/associated-type-bounds/return-type-notation/basic.rs @@ -0,0 +1,28 @@ +// revisions: with without +// edition: 2021 +//[with] check-pass + +#![feature(return_type_notation, async_fn_in_trait)] +//~^ WARN the feature `return_type_notation` is incomplete +//~| WARN the feature `async_fn_in_trait` is incomplete + +trait Foo { + async fn method() -> Result<(), ()>; +} + +async fn foo<T: Foo>() -> Result<(), ()> { + T::method().await?; + Ok(()) +} + +fn is_send(_: impl Send) {} + +fn test< + #[cfg(with)] T: Foo<method(): Send>, + #[cfg(without)] T: Foo, +>() { + is_send(foo::<T>()); + //[without]~^ ERROR future cannot be sent between threads safely +} + +fn main() {} |