// 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 types | |
async { *self } | |
} | |
} | |
fn main() {} |