From: Gary Wright <gwtmp01@...>
Date: 2009-02-19T07:48:19+09:00
Subject: Re: Tree structure - how do we link nodes together?


On Feb 18, 2009, at 5:33 PM, Rick DeNatale wrote:
> Actually, no.
>
> The value of any expression is an object.

I thought you were pretty clear in

<http://talklikeaduck.denhaven2.com/articles/2006/09/13/on-variables-values-and-objects 
 >

that values in Ruby are references, not objects.  That
posting is one of the nicest expositions on Ruby's object
model that I've seen.

It took me quite a while to get a good mental picture of
Ruby's object model.  Part of the problem was that the
community doesn't (or didn't) seem to have a consensus
on terminology in this area. Discussions about values,
references, expressions, objects, assignment semantics,
immutable types, symbols, identity,
and so on often resemble a druken sailor's random walk
rather than an simple, easily followed narrative.