Trapping (or "transparent wrapping") of function/method calls can be used, among others, to add a layer of authentication or for logging/debugging or even perhaps some interesting programming techniques. Ruby has alias_method which can be used for this purpose. Does Perl have something equivalent or to the same effect? The AUTOLOAD mechanism works only for calling non-existing subs (equivalent to Ruby's method_missing).

In reply to Trapping calls to existing Perl subs? by dgaramond2

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