Don't forget that closures created by using & prototypes can be dangerous. They leak memory under certain patterns of usage, and can generally be a PITA to debug.

Honestly, anything you could do in the past with the & prototype can probably be done cleaner and without closure-leakage issues using Source Filters (see perldoc perlfilter). The only reason to avoid that route is if you need to support pre-5.8 perls without installing optional modules or something.

In reply to Re: Prototypes and hand-written MMD by ph713
in thread Prototypes and hand-written MMD by dragonchild

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