ostruct-test.rb

require 'ostruct'
require 'benchmark'

COUNT = 10_000_000
NAME = "Test Name"
EMAIL = "[email protected]"

class SimpleOstruct
  def initialize(attrs = {})
    @attrs = attrs
  end

  def method_missing(name, *args)
    if name.to_s =~ /=$/
      @attrs[name.to_s[0..-2]] = args.first
    else
      @attrs[name] = args.first
    end
  end
end

class Person
  attr_accessor :name, :email
end

Benchmark.bm(13) do |x|
  x.report("hash:") do
    COUNT.times do
      p = { name: NAME, email: EMAIL }
    end
  end

  x.report("openstruct:") do
    COUNT.times do
      p = OpenStruct.new
      p.name = NAME
      p.email = EMAIL
    end
  end

  x.report("simple_openstruct:") do
    COUNT.times do
      p = SimpleOstruct.new
      p.name = NAME
      p.email = EMAIL
    end
  end

  x.report("struct:") do
    PersonStruct = Struct.new(:name, :email)
    COUNT.times do
      p = PersonStruct.new
      p.name = NAME
      p.email = EMAIL
    end
  end

  x.report("class:") do
    COUNT.times do
      p = Person.new
      p.name = NAME
      p.email = EMAIL
    end
  end
end