From: Hugh Sasse Staff Elec Eng <hgs@...>
Date: 2003-09-11T18:30:47+09:00
Subject: Re: What *are* variables? Which are nil now?

On Thu, 11 Sep 2003, Chad Fowler wrote:

> On Thu, 11 Sep 2003, Austin Ziegler wrote:
>
> # > raise "@b1 is nil" if @b1.nil
> # > @b1.each { |bf|
> #
> # You mean @b1.nil? -- right?

Yes, I'd mistyped it.
> #
>
> I think he's looking for something more like this:
>
> VariableSpace.each_pointing_to(nil) do |var|
>   # Do something with "var", which is probably some kind of
>   # object-oriented representation of a variable in memory.
> end

Yes, though I suspected that this might not be possible: ruby itself
doesn't do much with our 'sticky note' variable names because it
doesn't need that sugar.
>
> No way to do anything even close to this that I know of.

I suspected not.
>
> Chad
>
        Thank you,
        Hugh