From: Jeremy Kemper <jeremy@...>
Date: 2006-08-28T06:08:37+09:00
Subject: Re: Detecting when an object's instance variables are modified

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On 8/27/06, David Vallner <david@vallner.net> wrote:
>
> It's probably best to have your objects trace changes by design. Modify
> the Object class to have a #dirty? and #clean! method, and alias /
> redefine the #attr_writer method to generate methods that will set the
> dirty flag when used?


This works if you .freeze the ivar returned by attr_reader to prevent
in-place modification.

jeremy

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