You're missing the point. I don't care about your code - your design is too complex. There is no need for most of the trappings you're using. All you need is a set of classes / objects that all conform to a given API. They don't even have to be constricted to that API, or even do the same things when called.

As for context ... context objects, imho, should be used only when there is no other option. They are basically global variables, with all the pitfalls that entails without any of the benefits. Plus, there's a ton of bookkeeping involved and every single object needs to know about it, and possibly every single method. It is messy, dangerous, and ugly.

My point is that you're taking a system designed for a very specific purpose and extrapolating it out to a generic concept. That's a dangerous thing to do and you're doing it poorly.

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