From: Dossy <dossy@...>
Date: 2002-06-05T04:39:27+09:00
Subject: Re: When should actually freeze work ?

On 2002.06.05, Kent Dahl <kentda@stud.ntnu.no> wrote:
> Philip Mateescu wrote:
> > I have the following cases where I thought freeze should work. It doesn't,
> > and I have no clue as to why... (in all cases assignment seems to cancel the
> > values).
> 
> Common newbie misunderstanding. Please remember that all variables are
> simply references to objects. Freeze applies to the objects themselves.
> Assignment makes a variable refer to a different object, which does not
> affect the frozen object.

Really?  I thought assignment was shallow copy (both variables
refer to the same object) while sending #dup to an object caused
a deep copy, whereby the variable would refer to a new, different
object.

-- Dossy

-- 
Dossy Shiobara                       mail: dossy@panoptic.com 
Panoptic Computer Network             web: http://www.panoptic.com/ 
  "He realized the fastest way to change is to laugh at your own
    folly -- then you can let go and quickly move on." (p. 70)