// Opaque type.
#![feature(type_alias_impl_trait)]
pub type Adder<F, T>
where
T: Clone,
F: Copy
= impl Fn(T) -> T;
pub type Adderrr<T> = impl Fn( T ) -> T;
impl Foo for Bar {
type E = impl Trait;
}
pub type Adder_without_impl<F, T>
where
T: Clone,
F: Copy
= Fn(T) -> T;
pub type Adderrr_without_impl<T> = Fn( T ) -> T;