From: Mystifier <mystifier@...>
Date: 2005-01-15T02:34:55+09:00
Subject: Re: Mutable strings

> > About learning things before writing VM, I am sure I have to. What I
> > feel No VM or Interpreter can exists with reasonable performance 
> > with have an immutable string class. It is altogether a different 
> > matter what you call them.

Clarification:
It says that immutable string class is necessary in VM because instead of
comparing strings for method names etc in VM you can use integers or
references comparison. Ruby also does same thing but for Unknown reasons
prefers to call them symbol class and not an immutable string class. They
want to deny that Ruby has any. I have found Symbol has all the ingredients
of immutable string class. It has something more - uniqueness. 

Mystifier