From: "David A. Black" <dblack@...>
Date: 2009-06-28T23:18:36+09:00
Subject: Re: Attr Methods and object setters

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Hi --

On Sun, 28 Jun 2009, Gregory Brown wrote:

> On Sat, Jun 27, 2009 at 11:26 PM, Daniel DeLorme<dan-ml@dan42.com> wrote:
>> Gregory Brown wrote:
>>>
>>> Anyway, here's a better way to solve the problem that probably
>>> addresses your concerns:
>>>
>>> def name(*args)
>>> � � � return @name if args.empty?
>>> � � �@name = args.first
>>> end
>>
>> Another way to do this is to use some kind of singleton object
>>
>> Nothing = Object.new
>> def name(value = Nothing)
>> �@name = value unless value == Nothing
>> �@name
>> end

At the risk of someone saying that I've made it too cryptic, it could
be one line shorter:

   Nothing = Object.new
   def name(value = Nothing)
     @name = value unless value == Nothing
   end


David

-- 
David A. Black / Ruby Power and Light, LLC
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