File: impl-trait.rs

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//@ edition:2018
//@ check-pass

#![feature(async_closure, type_alias_impl_trait)]

type Tait = impl async Fn();
fn tait() -> Tait {
    || async {}
}

fn foo(x: impl async Fn()) -> impl async Fn() { x }

fn param<T: async Fn()>() {}

fn main() {}