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Do you know where your variables are?

Re: Now you see it, now you don't

by blakem (Monsignor)
on May 29, 2003 at 21:07 UTC ( #261693=note: print w/replies, xml ) Need Help??

in reply to Now you see it, now you don't

undef *$field;
Gotta be careful with that because it will blow away more than just the $field method. Say bye-bye to the $field array the $field hash and everything else in the $field stash...
my $obj = Bar->new() $Bar::faz = 100; print '$Bar::faz = ' . $Bar::faz . "\n"; $obj->destroy_methods(); print '$Bar::faz = ' . $Bar::faz . "\n"; __END__ $Bar::faz = 100 $Bar::faz = Doh!
As written, it might also mess up the method lookup cache that perl uses to determine which methods are overridden and which aren't.

What you'd really like is a way to localize the subroutine portion of the stash, but Perl doesn't provide a clean way to do that.

Before you go much further down this path, you really should read the highly enlightening discussion at: Undefining subroutines and inheritance


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