From: "Einar Høst" <ebuffer@...>
Date: 2006-03-09T21:23:43+09:00
Subject: [Newbie] Immutable objects

Hi,

Still working on the basics... for my card game, I want the Card objects 
to be immutable. Is it sufficient to put 'freeze' in the end of the 
constructor, like this (suit and rank will be strings):

def initialize(suit, rank)
   @suit, @rank = suit, rank
   freeze
end

Thanks,
Einar