Just to clarify mifflin's answer a bit, note that objects are by definition already references. Passing them to a subroutine is always pass-by-reference. All you've done is added another layer of referencing -- which will use more memory, not less.

As for the syntax, you should be able to access the inner reference with $$ref->parts(), but the real answer is probably to set a limit on the number of nested attachments. I can't imagine how many it would take to exhaust your system's memory to the point of causing perl to crash, but I think that's probably too many. 8^)

In reply to Re: Passing References to Subroutines by revdiablo
in thread Passing References to Subroutines by ketema

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