From: MenTaLguY <mental@...>
Date: 2007-10-05T23:09:35+09:00
Subject: Re: Reference vs. Reference

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On Fri, 2007-10-05 at 13:10 +0900, Eric Mahurin wrote:
> Like Java, Ruby does have the equivalent of "intrinsics".  They are
> the immediates (Fixnum, TrueClass, FalseClass, NilClass, and Symbol)
> which when used behave like the more conventional call-by-value.

Semantically, nil, false, etc. are simply object references (to
singleton objects).  Whether they are represented as "intrinsics" behind
the scenes is an implementation detail which is not shared by all Ruby
implementations.

-mental


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