lib/mongo/operation/shared/polymorphic_result.rb
# frozen_string_literal: true
# rubocop:todo all
# Copyright (C) 2018-2020 MongoDB Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
module Mongo
module Operation
# Shared behavior of instantiating a result class matching the
# operation class.
#
# This module must be included after Executable module because result_class
# is defined in both.
#
# @api private
module PolymorphicResult
include PolymorphicLookup
private
def self.included(base)
base.extend ClassMethods
end
module ClassMethods
attr_accessor :result_class
end
def result_class
self.class.result_class ||= begin
polymorphic_class(self.class.name, :Result)
rescue NameError
polymorphic_class(self.class.name.sub(/::[^:]*$/, ''), :Result)
end
end
end
end
end