rust/tests/ui/async-await/in-trait/fn-not-async-err2.rs

22 lines
493 B
Rust

// edition: 2021
// [next] compile-flags: -Zlower-impl-trait-in-trait-to-assoc-ty
// revisions: current next
#![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() {}