From: Austin Ziegler <austin@...>
Date: 2003-04-01T13:08:42+09:00
Subject: [RCR] Expose iv_get/iv_set to Ruby

I have a potential need to deal with all of the instance variables in 
an object. (I say potential because I'm porting and the original code 
does this. After I port this and refactor for Ruby, the need may go 
away -- but I don't know.)

What I need to do is basically:

self.instance_variables.each do |key|
  to_free << self.iv_get(key)
  self.iv_set(key, nil)
end

Now, rb_iv_set/rb_iv_get aren't visible from the Ruby side 
(apparently), but they are visible from the C side. Are there good 
reasons to not allow this, or can we modify it so that iv_get and 
iv_set (or better names for them) are available as private methods to 
go along with instance_variables?

-austin
-- Austin Ziegler, austin@halostatue.ca on 2003.03.31 at 23:02:53