AsyncGeneratorFunction

[mnieper]

ECMAScript 6 has the GeneratorFunction constructor available through Object.getPrototypeOf(function*(){}).constructor. By configuring GeneratorFunction.prototype.prototype generators created by generator functions can be globally customized.

This proposal should likewise add a AsyncGeneratorFunction constructor, so that, for example, AsyncGeneratorFunction.prototype.prototype could be configured to have the value of the Observable.prototype object given in observable.js in the example.