From: "David A. Black" <dblack@...>
Date: 2005-07-31T11:40:53+09:00
Subject: Re: make local var visible

Hi --

On Sun, 31 Jul 2005, Trans wrote:

>
> David A. Black wrote:
>
>> It's fragile because it means you're coupling things that are in
>> different scopes.  You might, for example, want to refactor part of
>> your program (put a class definition in another file, or whatever),
>> and you'd have to keep track of these "local" variables because
>> someone, somewhere, might have used your "local" variable in another
>> scope with ::var or whatever.
>
> True. But wouldn't you be facing the same thing by using Const, $var,
> or @@var? Nonethless you make it clear that good coding practices, like
> SOC, is the way to go.
>
>> Keep in mind that with Class#new, class_eval, define_method, closures,
>> and other such tools, you can do a fair amount of scope-capturing
>> already.  I think part of the point of the class and def keywords is
>> to seal off the scope of local variables.
>
> And thus enforcing good coding practices?

I think it at least provides an environment conducive to good
practices.


David

-- 
David A. Black
dblack@wobblini.net