anima_ext.rb

anima_ext.rb

require 'anima'

class AnimaExt < Anima
  module ClassMethods
    def [](hash)
      new(hash)
    end
  end

  module InstanceMethods
    def inspect
      h = to_h.map { |k, v| "#{k}: #{v.inspect}" }.join(', ')
      "%s[%s]" % [self.class.name, h]
    end
  end

  def included(cls)
    super
    cls.extend ClassMethods
    cls.include InstanceMethods
  end
end

class Point
  include AnimaExt.new(:x, :y)
end

require 'minitest/autorun'

describe "Point" do
  it do
    p = Point[x: 1, y: 2]
    p.inspect.must_equal "Point[x: 1, y: 2]"
  end
end