From: Bulat Ziganshin <bulatz@...>
Date: 2002-11-28T15:57:00+09:00
Subject: Re: Things That Newcomers to Ruby Should Know (11/24/02)

Hello William,

Wednesday, November 27, 2002, 7:47:36 PM, you wrote:

WDT> immutable while strings are mutable.  I think it will suffice for
WDT> all of us if Matz simply gives the formal list of which
WDT> objects/classes are mutable and immutable.  I agree with you that
WDT> the implementation is secondary.

this list implicitly exists - there is a convenience that only methods
with names ending with "!" change "self". of course, there is a number
of exceptions ("<<", for example) and someone can use another names
for slef-modifyiyng methods

i know, it it the not exactly what you ask for, but in current stage
immutable object is just any object which don't have self-changing
methods. Bignum, for example. Just until you add (c-implemented)
"next!" method or smth like this


-- 
Best regards,
 Bulat                            mailto:bulatz@integ.ru