From: Pedro Silva <ei04065@...>
Date: 2008-09-07T00:56:54+09:00
Subject: Re: attr_*, *variables_*

Hi David,

> I'm not sure what problem you're trying to solve. Why should methods
> that manipulate instance variables (@var), class variables (@@var),
> and method-name roots (attr_accessor :m) all conform to the same
> format, when the identifiers themselves don't?

Of course this is a minor detail in how methods process their arguments. 
What I was trying to say is that when you use for instance 
class_variable_set, you know that you're dealing with class variables so 
why it's necessary to prefix the regular name with @@. The same applies 
for instance_variables.

A convention avoids the need to ask yourself if any particular method 
has or hasn't the variable name prefixed by anything. I know that this 
is just a small detail but I think that the result with be more 
predictable if there's a convention for kinds of methods.

Pedro.
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