forwardable

forwardabletest.rb

#!/usr/bin/env ruby

require 'benchmark'
require 'forwardable'

class Horse
  def bark(n); end
end

class ForwardedHorse
  extend Forwardable

  def_delegators :@horse, :bark

  def initialize
    @horse = Horse.new
  end
end

class ExplicitlyForwardedHorse
  def initialize
    @horse = Horse.new
  end

  def bark(x)
    @horse.bark(x)
  end
end

N = 10000000

Benchmark.bmbm do |x|
 %w[ForwardedHorse ExplicitlyForwardedHorse].each do |klass|
    horse = Object.const_get(klass).new

    x.report("#{klass}#bark") do
      N.times do
        horse.bark(1)
      end
    end
  end
end

  %w[ForwardedHorse ExplicitlyForwardedHorse].each do |klass|
    horse = Object.const_get(klass).new

    x.report("#{klass}#bark") do
      N.times do
        horse.bark(1)
      end
    end
  end