Yes, you're right: a node isn't a special case of a tree - and neither is a tree a special case of a trees object. Also, I'm a bit worried about multiple inheritance. I may want to implement use fields; and I can imagine going crazy if I have multiple inheritance.

In reply to Re^3: "polymorphism" hack: nuts or wise? by rvosa
in thread "polymorphism" hack: nuts or wise? by rvosa

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