binding

Binding

ri

 --------------------------------------------------------- Class: Binding
      Objects of class  Binding  encapsulate the execution context at
      some particular place in the code and retain this context for
      future use. The variables, methods, value of  self , and possibly
      an iterator block that can be accessed in this context are all
      retained. Binding objects can be created using  Kernel#binding ,
      and are made available to the callback of  Kernel#set_trace_func .
 
      These binding objects can be passed as the second argument of the
       Kernel#eval  method, establishing an environment for the
      evaluation.
 
         class Demo
           def initialize(n)
             @secret = n
           end
           def getBinding
             return binding()
           end
         end
      
         k1 = Demo.new(99)
         b1 = k1.getBinding
         k2 = Demo.new(-3)
         b2 = k2.getBinding
      
         eval("@secret", b1)   #=> 99
         eval("@secret", b2)   #=> -3
         eval("@secret")       #=> nil
 
      Binding objects have no class-specific methods.
 
 ------------------------------------------------------------------------
 
 
 Instance methods:
 -----------------
      clone, dup

refe

 ==== Binding ====
 ローカル変数のテーブルと self、モジュールのネストなどの情報を保
 持するオブジェクトクラス。組み込み関数 binding によっ
 てのみ生成され、eval の第 2 引数に使用します。
 
 またトップレベルBinding オブジェクトとして組み込み定数 
 TOPLEVEL_BINDING が用意されています。
 ---- Singleton methods ----
 ---- Instance methods ----
 ---- Singleton methods (inherited) ----
 ---- Instance methods (inherited) ----