From: Robert Klemme <bob.news@...>
Date: 2006-03-30T21:58:43+09:00
Subject: Re: accessing the currently running method

Kev Jackson wrote:
> Currently I have
> 
> caller[0][/in: `.+(pg_\d{3})/,1]
> which adequately returns the current method (given the current 
> convention of naming the methods something with the page number in them)
> 
> I tried
> class Object
>  def current_method
>    caller[0][/in: `.+(pg_\d{3})/,1]
>  end
> end
> 
> but calls to this inside a method_missing method produce nil - not sure 
> why, but obviously I need to study more ruby to understand why that 
> doesn't work.  Including current_method (as defined above) in module 
> Kernel also doesn't do the trick, but having the caller[0][/in: 
> `.+(pg_\d{3})/,1] inside the method_missing method works.

Maybe you're calling method_missing again?  Could be that you a) either 
need to provide a parameter to current_method that determines how many 
levels to go up or b) you cannot do what you want because once 
method_missing is invoked your original method name is lost:

 >> o=Object.new
=> #<Object:0x3f3530>
 >> def o.method_missing(s,*a,&b) p caller; p s; end
=> nil
 >> def o.bar() foo() end
=> nil
 >> o.bar
["(irb):7:in `bar'", "(irb):8:in `irb_binding'", 
"/usr/lib/ruby/1.8/irb/workspace.rb:52:in `irb_binding'", ":0"]
:foo
=> nil

"foo" doesn't show up in caller, but method_missing has the symbol 
(first arg).

> Thanks for pointing me in the direction of a couple of new things

You're welcome!

Kind regards

	robert