Ruby Objects - Then and Now

Asked Jul 02 '15 at 18:12

Active Jul 02 '15 at 18:12

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I'm reading through Why's (poignant) Guide to Ruby, and in chapter 5, when he's discussing the ability to analyze class structure by using the :superclass method, he has this snippet of irb interaction:

irb> Class.superclass
  => Module
irb> Kernel.class
  => Module
irb> Module.superclass
  => Object
irb> Object.superclass
  => nil

I attempted to recreate this in my irb and got the following output:

irb> Class.superclass
  => Module
irb> Kernel.class
  => Module
irb> Module.superclass
  => Object
irb> Object.superclass
  => BasicObject
irb> BasicObject.superclass
  => nil

I know that many languages now follow this paradigm of having virtually everything inherit from a single, parent object.

My question is, when and why did Ruby introduce a BasicObject class, which extends to Object? Was the Object class not good enough for you?! Sheesh!

asked Jul 02 '15 at 18:12

Taylor Lopez

2

http://stackoverflow.com/questions/8894817/whats-the-difference-between-object-and-basicobject-in-ruby – Mircea Jul 02 '15 at 18:14
Right you are. Thank you! – Taylor Lopez Jul 02 '15 at 18:14

Ruby Objects - Then and Now

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