From: Gyoung-Yoon Noh <nohmad@...>
Date: 2005-10-31T11:30:30+09:00
Subject: Re: determining whether an object is an immediate?

On 10/31/05, Eric Mahurin <eric_mahurin@yahoo.com> wrote:
> It is slow, but this is probably one of the better definitions
> of what an immediate is - whether it exists in ObjectSpace or
> not.
>
> Here's another solution:
>
> class Object;    def immediate?;false;end;end
> class Fixnum;    def immediate?;true; end;end
> class Symbol;    def immediate?;true; end;end
> class NilClass;  def immediate?;true; end;end
> class FalseClass;def immediate?;true; end;end
> class TrueClass; def immediate?;true; end;end
>

Here is one-line version:

[Object, Fixnum, Symbol, NilClass, FalseClass, TrueClass].each { |c|
c.instance_eval { define_method(:immediate?) { true } } }

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