I've got a hash containing a dispatch table - the standard setup where labels are the keys and the subroutines are the values in the hash. Like so:

%query=('action1'=>\&handler1,
        'action2'=>\&handler2,
        'action3'=>\&_do_not_advertise_this_function_externally,
        # and so on
);

[download]

Question: how can I, prior to actually dispatching the call to the handler, find out the name of the subroutine that will be called? For instance for any given param $action, I would like to know whether I'll be going to a subroutine named with a leading '_' prior to calling $query{$action}->();.

I don't want to resort to using symbolic refs and encoding the sub names as text strings in the values of my dispatch table - it seems wrong somehow. Is there an easier (or "better") way?

[Jon]

In reply to Getting name of sub from a hash-based dispatch table? by theguvnor

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