From: Joel VanderWerf <vjoel@...>
Date: 2002-12-13T05:12:30+09:00
Subject: Re: How to detect Module Inclusion for Class Instances (like Module#extend_object)?

Martin Hart wrote:
...
>>>Is there a way to tell that a module is being included by a class?
>>>Specifically I want to detect this for instances of the class in question
>>>- sort of like using #extend_object.
> 
> 
>>Take a look at Module#append_features.
> 
> 
> AFAICT that works for the class - but not for instances of it...

OK, I see now. Why can't you just use initialize?

module P
   def initialize(*args)
     super
     puts "Initializing P"
   end
end

class B
   include P
end

a = B.new