From: Robert Klemme <shortcutter@...>
Date: 2010-03-10T17:29:29+09:00
Subject: Re: using the current method name within current method

2010/3/10 Ace Suares <ace@suares.an>:
> Robert Klemme wrote:
>
> <snip>
>
>> These methods are typically put into Kernel and made private.  Also, you
>> don't check whether the RX actually matches.  I'd also prefer to change
>> the RX to a more efficient one.  So that would give
>>
>> module Kernel
>> private
>>    def this_method
>>      caller[0] =~ /`([^']*)'/ and $1
>>    end
>> end
>
> Excellent! I was searching for this for a long time. 'what method called
> this method' or 'how to find out which method called this method ?'
>
> So, here's one:
>
> module Kernel
> private
>  def this_method
>    caller[0] =~ /`([^']*)'/ and $1
>  end
>  def calling_method
>    caller[1] =~ /`([^']*)'/ and $1
>  end
> end
>
> Example:
>
> def a
>  b
> end
>
> def b
>  puts "this method: " + this_method
>  puts "calling method: " + calling_method
> end
>
> calling 'a' will output
> this method: b
> calling method: a

Wow, you just reviewed a 3.5 year old thread! :-)

Btw, nowadays I would change the regular expression matching to use
String#[] which I find much more elegant:

  def this_method
    caller[0][/`([^']*)'/, 1]
  end

Kind regards

robert

-- 
remember.guy do |as, often| as.you_can - without end
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