# frozen_string_literal: true

module LIT
  module Object
    def self.included(object)
      object.define_singleton_method(:Some) { |value| Option::Some.new(value) }
      Utils.const_reset(object, "None", Option::None)
      Utils.const_reset(object, "Some", Class.new(Option::Some))
    end

    # @api public
    # @since 0.1.0
    module Option
      def self.included(object)
        object.define_singleton_method(:Some) { |value| Some.new(value) }
        Utils.const_reset(object, "Some", Class.new(Some))
      end

      None = Class.new

      class Some
        attr_reader :value

        def initialize(value)
          check_type!(value)
          @value = value
        end

        def __value__
          @value
        end

        private

        def check_type!(value); end
      end
    end
  end
end