Yes, you can do the same with a global variable. However
my point was that even with every lexical in file scope,
having one of the direct references to a lexical inside of
a function brings the problem back.
BTW the more I think about it, the more I like the idea of
having a flyweight implementation with an END block to kill
all of the objects. That allows module authors to create
objects which clean themselves up reliably without assuming
that users are cautious.
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