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Re^4: coding rules

by ihb (Deacon)
on Aug 05, 2005 at 23:00 UTC ( #481393=note: print w/replies, xml ) Need Help??

in reply to Re^3: coding rules
in thread coding rules

Package variables are the worst, because their scope transcends a single file.

How are package variables worse than file-scoped lexicals? If it's because it allows people to mess with parts of your code that you didn't intend, then why use a package variable instead of a file-scoped lexical? (Yes, there are a few rare legitimate reasons.) If you have a legitimate reason for using it but it's not a part of the interface, is it bad because you feel a need to "protect" your variables from users? (If that's the case I guess regular subroutines are bad too.) If you have it like a package variable because it's a part of the interface, then it's not evil. Those are the cases I can think of where I'd use package variables in modules, and I can't figure out why you think package variable are "the worst". Can you elaborate?


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