Decorator

module Decorator

  def initialize(component)
    @component = component
  end

  def method_missing(meth, *args)
    if @component.respond_to? meth
      @component.send(meth, *args)
    else
      super
    end
  end

  def respond_to?(meth)
    @component.respond_to? meth
  end

  module Factory

    # `decorate` wraps classes in a decorator

    def decorate(klass, component)
      klass = Object.const_get(klass)
      klass_source(klass).call(component)
    end
  end
end