lib/mongo/operation/shared/polymorphic_lookup.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 looking up a class based on the name of
# the receiver's class.
#
# @api private
module PolymorphicLookup
private
def polymorphic_class(base, name)
bits = (base + "::#{name}").split('::')
bits.reduce(Object) do |cls, name|
cls.const_get(name, false)
end
end
end
end
end