From: dblack@...
Date: 2006-07-29T05:05:34+09:00
Subject: Re: does ":" have an anolog in another language?

Hi --

On Sat, 29 Jul 2006, Matt Todd wrote:

> 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.

In the general case (i.e., unless you override Foo.new), x and y will
be different objects:

   class C
     def initialize(x)
     end
   end

   p C.new('a').object_id
   p C.new('a').object_id

You'll get different numbers.


David

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