// check-pass // edition: 2021 #![feature(async_fn_in_trait)] #![feature(return_position_impl_trait_in_trait)] #![allow(incomplete_features)] use std::future::Future; use std::pin::Pin; trait MyTrait { async fn foo(&self) -> i32; } impl MyTrait for i32 { // This will break once a PR that implements #102745 is merged fn foo(&self) -> Pin + '_>> { Box::pin(async { *self }) } } fn main() {}