From: William Djaja Tjokroaminata <billtj@...>
Date: 2002-08-08T02:24:16+09:00
Subject: Re: Is There an Inverse of 'rb_define_method'?

Hi,

I don't think it is similar to get the name of a variable.  When Ruby
calls a method, in the background it must call a C function.  I want to
get the pointer of this function, not its name.

The problem is in my case, someone else (the user) will define the method
in Ruby, and so I cannot record it when the method is defined.

Basically, in my extension, instead of writing

    rb_funcall (obj, rb_intern ("func_name"), n, ...);

I just want to call the function directly, something like

    func_name_ptr (obj, n, ...);

to reduce the overhead (because this call is done hundreds of thousands
times per second).

Regards,

Bill
===========================================================================
George Ogata <g_ogata@optushome.com.au> wrote:
> I think this is similar to trying to get the name of a variable referring 
> to an instance.  See thread starting at [ruby-talk: 44901] for why this is 
> probably a dubious thing to do.

> Perhaps you can hash the method string to the method name(s) when you 
> define it?