Support for AsyncIterator

[chr15m]

Occasionally an API requires the use of a JavaScript async for over some iterator like this:

for await (const [key, value] of this.keyv.iterator()) {
      console.log(key, value); // Return: key and value 
};

It would be neat if there was a way to do this directly in promesa, similar to the macro at How to work with asynciterable. Here's the macro:

(defmacro async-doseq [[binding async-iterable] & body]
  `(let [async-iterator# ((js* "~{}[Symbol.asyncIterator]" ~async-iterable))]
     (fn handle-next# []
       (let [next# (.next async-iterator#)]
         (.then 
          next#
          (fn [res#]
            (if (.- res# done)
              nil
              (do (let [~binding (.- res# value)]
                    ~@body) 
                  (handle-next#)))))))))

Is this something Promesa is interested in supporting?