From: Ilias Lazaridis <ilias@...>
Date: 2005-04-19T16:59:33+09:00
Subject: Re: - E03c - The Ruby Object Model (Revised Documentation)

Jim Weirich wrote:
> On Tuesday 19 April 2005 12:59 am, Ilias Lazaridis wrote:
> 
>>>In this case it returns nil because Object does not have a superclass,
>>>i.e. it does not inherit from anything.
>>
>>In context of an Language Object Model:
>>Object inherits from "nil".
> 
> Nothing can inherit from nil, for nil is not an instance of Class... as 
> demonstrated below.

you reverse things.

>>>class NilSubClass < nil; end
> 
> TypeError: superclass must be a Class (NilClass given)
> 	from (irb):10

this is irrelevant.

> In the context of the Ruby Object Model, Object has not superclass and does 
> not inherit from anything.

it inherits from nothing, which is represented by "nil", which is a 
'living' object, which is an instance of class NilClass, which inherits 
from Object.

> Please remove the inaccuracies in your Language Object Model.

I will add the above describewd circularity to the new diagram.

then please review it again.

..

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