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Rubyのモジュールのインスタンスメソッドの挙動を実験してみた

Last updated at Posted at 2020-04-05

確認したかったこと

モジュールのインスタンスメソッドからinclude元のクラスのインスタンス変数/メソッドを呼び出すことは可能か?

実験

module TalkActions
  def say_my_name
    puts "I am #{@name}"
  end

  def shout_my_name
    puts "I am #{self.name}!!!!!!!!"
  end
end

class Human
  attr_accessor :name
  include TalkActions
  def initialize(name)
    @name = name 
  end
end

John = Human.new("John")
John.say_my_name # 'I am John'
John.shout_my_name # 'I am John!!!!!!!!'

結論

どちらも呼び出し可能

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