ama-team / ruby-entity-mapper

          class Normalizer < API::Normalizer

            include Mixin::Errors

            # @param [AMA::Entity::Mapper::API::Normalizer] processor

            def initialize(processor)

              @processor = processor

              @fallback = Default::Normalizer::INSTANCE

            end

            # @param [Object] entity

            # @param [AMA::Entity::Mapper::Type] type

            # @param [AMA::Entity::Mapper::Context] context

            def normalize(entity, type, context = nil)

              ctx = context || Context.new

              @processor.normalize(entity, type, ctx) do |e, t, c|

                @fallback.normalize(e, t, c)

              end

            rescue StandardError => e

              raise_if_internal(e)

              message = "Error while normalizing #{entity} (type: #{type}) " \

                "using #{@processor}"

              if e.is_a?(ArgumentError)

                message += "Does #{@processor}#normalize have signature " \

                  '(entity, type, context = nil)?'

              end

              mapping_error(message, parent: e, context: ctx)

            end

          end