From: Dreamcat Four <dreamcat4@...>
Date: 2009-10-12T22:51:25+09:00
Subject: Re: Class Level inheritable attributes - are we there yet?

Dreamcat Four wrote:
> David has shown that we should 'extend' and not define any accessor
> method. So I guess its the better choice (since pointing out about the
> @=nil). Im definately coming around to understand better and appreciate
> more David's solution here. Thank you.

I would change the following line:
- @inheritable_attributes.each do |attr|
+ inheritable_attributes.each do |attr|

Provide the full usage:

class MyObject < Object
  extend ClassLevelInheritableAttributes
  inheritable_attributes :attr_1, :attr_2, ...
end

Using extend only once and the feature itself will also propagate to all 
subclasses.

class MySubclass < MyObject
  inheritable_attributes :attr_3, :attr_4, ...
end

This means that you could mix into Object, just still left with possible 
namespace conflict on 1 new method ('inheritable_attributes') as we had 
discussed earlier. I don't believe we can do anything about that here. 
Only if defined as an official method would everybody know not to use 
it.

> Best regards,
> 
> dreamcat4
> dreamcat4@gmail.com
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