@foo = Prototype.new %q{
  attr_accessor :name
}
@bar = @foo.new
@baz = @bar.new

@foo.name = "foo"
@bar.name = "bar"
@baz.name = "baz"

def test_greet
  try_greet = lambda {|obj|
    if obj.respond_to? :greet
      obj.greet(obj.name)
    else
      puts "Object #{obj.name} (#{obj.id}) cannot greet"
    end
  }
  try_greet[@foo]
  try_greet[@bar]
  try_greet[@baz]
end

test_greet()

@bar.def %q{ greet (name)
  puts "Greeting from #{name} (id #{self.id})"
}

puts "Defined bar.greet"

test_greet()

module Mod
  def greet (name)
    puts "Hello from #{name} (#{self.id})"
  end
end

@foo.include(Mod)
puts "Included module"

test_greet()