intridea/grape

# frozen_string_literal: true

# Based on https://github.com/HornsAndHooves/lazy_object

module Grape
  module Util
    module Lazy
      class Object < BasicObject
        attr_reader :callable

        def initialize(&callable)
          @callable = callable
        end

        def __target_object__
          @__target_object__ ||= callable.call
        end

        def ==(other)
          __target_object__ == other
        end

        def !=(other)
          __target_object__ != other
        end

        def !
          !__target_object__
        end

        def method_missing(method_name, *args, &block)
          if __target_object__.respond_to?(method_name)
            __target_object__.send(method_name, *args, &block)
          else
            super
          end
        end

        def respond_to_missing?(method_name, include_priv = false)
          __target_object__.respond_to?(method_name, include_priv)
        end
      end
    end
  end
end