From: David Garamond <lists@...6.isreserved.com>
Date: 2004-06-08T18:53:46+09:00
Subject: Re: accessing class instance variable from instance method

Robert Klemme wrote:
>  - I just don't get why you do @var = "instance" in method
> 'class_instance_var'.

That's just for testing :-) (to make sure the right '@var' is printed).

>  - I would not define an instance method that accesses the class's
> attribute other than using it as an obfuscating technic.  The class has
> already an accessor for that.  Implementing a method like you did makes
> the user think it's an instance var.

I seldom do this too. Only when I want to expose a class' attribute to 
class instance users (and usually only read only too).

>  - You might want to consider synchronizing access to the class var if
> you're in a multithreaded env, because multiple threads might be accessing
> the class concurrently.

I see. Thanks.

>  - I prefer "def self.var; @var; end" because that is safe with respect to
> class renaming.

Yes. Old habits (due to examples in Pickaxe) :-)

-- 
dave