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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/async-await/in-trait/fn-not-async-err2.rs | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/test/ui/async-await/in-trait/fn-not-async-err2.rs b/src/test/ui/async-await/in-trait/fn-not-async-err2.rs new file mode 100644 index 000000000..594baa91a --- /dev/null +++ b/src/test/ui/async-await/in-trait/fn-not-async-err2.rs @@ -0,0 +1,21 @@ +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +use std::future::Future; + +trait MyTrait { + async fn foo(&self) -> i32; +} + +impl MyTrait for i32 { + fn foo(&self) -> impl Future<Output = i32> { + //~^ ERROR `impl Trait` only allowed in function and inherent method return types, not in `impl` method return [E0562] + async { + *self + } + } +} + +fn main() {} |