From: Matt Todd <chiology@...>
Date: 2006-07-29T04:18:28+09:00
Subject: Re: does ":" have an anolog in another language?

A simple way to describe it may be to look at it as a singleton object
in that, every unique symbol is a different object, but all of the
same symbols are the same object.

For instance...

x = Foo.new('bar')
y = Foo.new('bar')
z = Foo.new('baz')

Both x and y will be the same object, but different references. But z
will be different because its value is different. The only way I can
think of reproducing this in any other language is to create this
weird version of a Singleton class. Should we call it a
Unique-Singleton pattern?

M.T.