Archive for February 19, 2018

• Ruby performance: #attr_accessor vs. method definition

  February 19, 2018

  I’ve been digging a lot into Ruby performance lately and this much digging has taken me into some very interesting corners of Rubyland. My latest surprise has been the difference between defining attribute methods via the attr_accessor provided language construct (as well as attr_reader and attr_writer) vs. defining them yourself (as in def attribute and def attribute=). Here’s what I ran into…

  I created two simple classes with identical interfaces. The only difference between the two is how we are defining access to set and get the @value attribute in each:

  class TestClassAttrAccessor
    attr_accessor :value
  
    def initialize value
      @value = value
    end
  end
  
  class TestClassDefMethod
    def initialize value
      @value = value
    end
  
    def

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