Sometimes a deeply recursive method is the easiest solution to a problem, but if you recurse more than a couple of hundred calls you'll hit perl's "deep recursion" error. Here's a snippet that allows you to tail recurse (where the result of the recursive call is returned directly) without eating stack.
@_ = ($object, @args);
goto &{ $object->can($method) };

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In reply to Tail recursion elimination by billh

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