Coffee script like constructor definition

gistfile1.rb

module CoffeeConstructor
  def constructor(*ivars)
    define_method :initialize do |*args|
      raise(ArgumentError) unless ivars.size == args.size

      ivars.zip(args).each do |ivar, val|
        instance_variable_set(ivar, val)
      end
    end
  end
end

class Foo
  extend CoffeeConstructor

  constructor :@foo, :@bar

  def hi
    puts "hello #{@foo} and #{@bar}"
  end
end

Foo.new('alice', 'bob').hi