From: Robert Klemme <bob.news@...>
Date: 2005-09-10T21:56:35+09:00
Subject: Re: method_added for class methods

David A. Black <dblack@wobblini.net> wrote:
> Hi --
> 
> On Sat, 10 Sep 2005, Trans wrote:
> 
>> class X
>>  class << self
>>    def method_added(*args)
>>      p args
>>    end
>>    def singletin_method_added(*args)
> 
> s/tin/ton/ :-)
> 
>>      p args
>>    end
>>  end
>> end
> 
> I believe that only the singleton_method_added actually does anything.
> I guess that's because the only methods you can add to this class are
> singletons, and that gets priority.
> 
> At least, when I tried method_added, I couldn't get any output.

Worksforme:

>> class Bar
>> class <<self; def method_added(m) p m end end
>> def x() end
>> end
:x
=> nil
>>

>> Don't ask me to explain it --it's mind numbing.
> 
> Like so many things, it comes down to:
> 
>   * objects can have singleton methods
>   * singleton methods are stored in the object's singleton class
>   * classes are objects
> 
> It's so lovely, don't you think? :-)

Yes!

Kind regards

    robert