From: Park Heesob <phasis68@...>
Date: 2005-10-31T12:21:26+09:00
Subject: Re: determining whether an object is an immediate?

Hi,
----- Original Message ----- 
From: "Eric Mahurin" <eric_mahurin@yahoo.com>
To: "ruby-talk ML" <ruby-talk@ruby-lang.org>
Sent: Monday, October 31, 2005 12:57 AM
Subject: Re: determining whether an object is an immediate?


> 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
>
This would be better:

class Object
  def immediate?
    [Fixnum, Symbol, NilClass, FalseClass, TrueClass].include?(self.class)
  end
end

Regards,

Park Heesob