gistfile1.txt

~/C/R/S/InteractiveRubyMotion [master] » irb
irb(main):001:0> class A
irb(main):002:1>   def foo
irb(main):003:2>     "A"
irb(main):004:2>   end
irb(main):005:1> end
=> nil
irb(main):006:0> class B < A
irb(main):007:1>   def foo
irb(main):008:2>     super + "B"
irb(main):009:2>   end
irb(main):010:1> end
=> nil
irb(main):011:0> module C
irb(main):012:1>   def foo
irb(main):013:2>     super + "C"
irb(main):014:2>   end
irb(main):015:1> end
=> nil
irb(main):016:0> o = B.new
=> #<B:0x007f8241d52738>
irb(main):017:0> o.foo
=> "AB"
irb(main):018:0> class B
irb(main):019:1>   include C
irb(main):020:1> end
=> B
irb(main):021:0> o.foo
=> "ACB"
irb(main):022:0> B.ancestors
=> [B, C, A, Object, Kernel, BasicObject]