From: John Carter <john.carter@...>
Date: 2005-10-19T10:47:10+09:00
Subject: Re: The Ruby Way to build an object unless nil?

On Wed, 19 Oct 2005, Peter Fitzgibbons wrote:

> def mymethod
>  a = someobjectreference('a')
>  if a.nil?
>    return nil
>  end
>  b = a.someattribute_might_be_nil
>  if b.nil?
>    return nil
>  end
>  c = b.someattribute_might_be_nil
>  if c.nil?
>    return nil
>  end
>  c.dosomething
> end

class NilObject
   def someattribute
     nil
   end

   def dosomething
     nil
   end
end

def mymethod
   someobjectrefence('a').someattribute.someattribute.dosomething
end


John Carter                             Phone : (64)(3) 358 6639
Tait Electronics                        Fax   : (64)(3) 359 4632
PO Box 1645 Christchurch                Email : john.carter@tait.co.nz
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