As far as I understand you want to use AUTOLOAD° as a wrapper around your methods to control some debug behavior.

May I suggest that you use real wrappers?

You can automatically replace all methods in a list with new ones which call the old ones internally.

my $old_ref = \&meth;
*meth = sub { before(); &$old_ref ; after() };
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No more code, because I'm not sure if that's your case, search for "Perl monkey-patching" if interested.

AFAIK do some OOP models like Moose provide extra functionality for such "upgrades".

°) and as I explained in my other reply, using AUTOLOAD in classes is a tough choice leading to a lot of problems.