From: Trans <transfire@...>
Date: 2007-07-17T01:13:51+09:00
Subject: Re: Accessing the name of the current function



On Jul 16, 10:56 am, "Ronald Fischer" <ronald.fisc...@venyon.com>
wrote:
> Is there away to access the name of the currently defined function?
> Example: Right now I do tracing like this:
>
> def myfunc(a,b)
>   trace.debug "ENTER myfunc a=#{a} b=#{b}"
>   ....
>   trace.debug "LEAVE myfunc result=#{result}"
>   result
> end
>
> If I rename myfunc, I also have to change the word myfunc in the
> trace statements. It would be convenient to have something like
>
>   trace.debug "ENTER #{__function__} a=#{a} b=#{b}"

Facets has this Kernel method for it.

  module Kernel

    def called
      /\`([^\']+)\'/.match(caller(1).first)[1].to_sym
    end

   end

  See http://facets.rubyforge.org.

I think the plan for 1.9 is to have __method__ and __callee__, which
differ based on aliasing. (Guess Matz decided __shadow__ methods are
here to stay).

T.