From: Tom Sawyer <transami@...>
Date: 2003-01-26T13:30:59+09:00
Subject: Re: Reflection for instance variables?

On Saturday 25 January 2003 08:34 pm, Patrick Narkinsky wrote:
> Hi.  I'm brand new to Ruby, so please pardon if this question is naive,
> but I have not been able to figure it out. I would like to come up with
> a way to define a method in a superclass that would give me a list of
> variables in a subclass.  So:

dont think a class method is going to cut it, for a couple of reasons.

but perhaps this:

class Father
   @h_test = "1234"
   @h_test2 = "12345"
   def vars
      return self.instance_vars - self.superclass.instance_vars
   end
end

class Son < Father
   @h_test3 = "123456"
end

s = Son.new
print s.vars

NOT TESTED!!!

> (For the curious, I'm trying to do something in Ruby I saw in
> objective-c.  This class allowed you to define a subclass, define the
> variables in the subclass, then it would create the sql, etc.
> automagically.)

sounds fun! and good luck.

-- 
tom sawyer, aka transami
transami@transami.net