Hi Allen, I agree with your sentiments on the usefulness of mustache with respect to "extending" an object, but I think the point that brings it down is the fact that it will confuse developers with the put/define distinction. It just looks too much like batch assignment.
Cascade (or the more specific batch-assignment) would be useful, but whether the gain in usefulness is worth the added language complexity is something that would need to be quantified. My hunch is that batch assignment would only provide a minor improvement. Regarding super references outside of class bodies: I agree with Luke that this is a foot gun. The class body provides an easy to understand meaning for super. Outside of the class body, that meaning is going to be subtle, probably too subtle to be worth it. When adding methods to objects, we can always just create an explicit variable to hold the "super" reference. Regarding private names: I'm not convinced that private, non-reflective names are unproblematic in and of themselves. I would personally like to see more exploration on this front, with concrete use-cases. What useful things can we do with private names that we cannot do with globally unique names? Regards, kevin
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