From: Trans <transfire@...>
Date: 2005-07-31T07:06:02+09:00
Subject: Re: make local var visible


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?

T.