* Object#singleton_methodsˤĤ
  Module饹Υ󥹥(==module object)ˤƤ֤ȡ
  Ѿðۥ᥽åɤޤޤƤ뤳Ȥ

    class A
      def A.x
      end
    end

    class B
      def B.y
      end
    end

  ȤȤB.singleton_methodsǤ["x","y"]֤äƤ롣
  class <<B; public_instance_methods; end ɾ ["y"]
  ֤äƤ롣Ѥ٤

  
* ؿΤ褦˸᥽å
  class Object  private method Ȥ

* class ScriptFile ˤĤ
  input  String Υ󥹥󥹤ΤȤ StringIO Ȥ

* rrbˤ
  ֺǽ˻ꤷե뤬ᥤǤ롢Ĥޤꡢ"ruby Υե"
  ¹ԤǤĤΤȤ٤ƤΥեrequireȤ򤹤롣
  ġΥեϼ¹if $0 == __FILE__ then .... end 
  äƤơrequire줿Ȥϥ饹⥸塼롢᥽åɤ
  ʳ⤷ƤϤʤʤ
  ästdout˥ǡ񤭤ꤷμ¤˾μ˼Ԥ롣
  
  #{}ˤ뼰ʸŸʸ˲ԤޤޤƤϤʤ

  $__rrb_load_path, $__rrb_loadedȤХѿ
  __rrb_load, __rrb_searchȤؿƤꤷƤ
  ʤ
  
* RRB::DumpedClassInfo#subclass_of?(classname)
  self  classname פƤƤ⿿֤

* rename methodˤĤ
  ʲεǽɬפǤ
  * ꤷ饹ºݤѹɬפΤ륯饹򤹤٤󤹤
  * ֤̾äƤʤå
  * rename

* ºݤˤѹƤʤեˤĤ
  ե󥰤η̡ޤäѹʤեϲܰ
  դƤemacs¦ǤѹƤʤХåե⹹ƤޤΤ
  ؤǤ롣

  ϻ˼ºݤѹ줿եΤ߽ϤƤʤΤϤʤ
  Ȥˡ뤳Ȥˤ

  @new_script.nil? ǤΤ߽Ϥ褦result_to_io
  ѹ

  
* Emacs lispˤĤ
  `פˤĤ http://www.mew.org/~kazu/doc/elisp/backquote.html

* Extract MethodˤĤ
  ƥ졼AssignedǤʤѿȰ뤿ᡢyieldȤƤȡ
  ͤƥ졼ޤޤƤޤޤؿФǤʤ
  Ūˤϡ
  class A
    def foo
      xs = [1, 2, 3]
      xs.each {|x| p x}
      xs.each {|x| p x}
    end
  end
  ǡ3,4ܤextract_methodȡ
  class A
    def bar(x)
      xs = [1, 2, 3]
      xs.each {|x| p x}
      return xs, x
    end 
    def foo
      xs, x = bar(x)
      xs.each {|x| p x}
    end
  end
  ȤʤäƤޤ

* RRB::NamespaceΥ֥ȤΥå
Test suiteǡ3.4sec -> 2.8secȸ