Use impl trait in library macro

[JayPavlina]

I am trying to do this:

reflect::library! {
    extern crate hashing {
        type Hasher;

        trait Hashable {
            fn hash(&self, &mut impl Hasher);
        }

        macro write;
    }
}

However, it will not accept the impl keyword. Is there any way to make it work, or do I have to use a type parameter instead?

[8BitMate]

This is unfortunately not supported yet. It should work with the dyn keyword, or with a type parameter as you suggested.