From: Brian Candler <B.Candler@...>
Date: 2003-02-22T07:39:28+09:00
Subject: Re: Style question: using 'block_given?'

> This is the class instance variable police. Freeze! Keine Bewegung!
> 
> ;-)

It's a fair cop :-) I had a hard time getting my head round this one:

- Class variables (@@data) are fine.

- Instance variables in a module are fine: mix it into a class, and
  instances of that class get those instance variables too

- But @data as a class instance variable? You can't even refer to it,
  except from within a class method. (Unlike a class variable, @@data,
  which you can use within a normal instance method)

It looks like something which the language has by accident more than by
design :-)

Regards,

Brian.