From: 7stud -- <bbxx789_05ss@...>
Date: 2011-04-16T08:10:05+09:00
Subject: Re: What do you do when you need to attach data to an object instance?

Kevin Mahler wrote in post #992907:
>
>   def extend_accessor(obj, name)
>     obj.singleton_class.module_eval { attr_accessor name }
>     obj
>   end
>

Hey, now.  obj.singleton_class is a class so how about using the synonym 
class_eval():

      obj.singleton_class.class_eval { attr_accessor name }

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