| # Copyright 2018 Google LLC | |
| # | |
| # 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 | |
| # | |
| # https://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. | |
| # This file pulls in the container types from internal protocol buffers, | |
| # and exports the types available. | |
| # | |
| # If the C extensions were not installed, then their container types will | |
| # not be included. | |
| from google.protobuf.internal import containers | |
| import google.protobuf | |
| PROTOBUF_VERSION = google.protobuf.__version__ | |
| # Import protobuf 4.xx first and fallback to earlier version | |
| # if not present. | |
| try: | |
| from google._upb import _message | |
| except ImportError: | |
| _message = None | |
| if not _message: | |
| try: | |
| from google.protobuf.pyext import _message | |
| except ImportError: | |
| _message = None | |
| repeated_composite_types = (containers.RepeatedCompositeFieldContainer,) | |
| repeated_scalar_types = (containers.RepeatedScalarFieldContainer,) | |
| map_composite_types = (containers.MessageMap,) | |
| # In `proto/marshal.py`, for compatibility with protobuf 5.x, | |
| # we'll use `map_composite_type_names` to check whether | |
| # the name of the class of a protobuf type is | |
| # `MessageMapContainer`, and, if `True`, return a MapComposite. | |
| # See https://github.com/protocolbuffers/protobuf/issues/16596 | |
| map_composite_type_names = ("MessageMapContainer",) | |
| if _message: | |
| repeated_composite_types += (_message.RepeatedCompositeContainer,) | |
| repeated_scalar_types += (_message.RepeatedScalarContainer,) | |
| # In `proto/marshal.py`, for compatibility with protobuf 5.x, | |
| # we'll use `map_composite_type_names` to check whether | |
| # the name of the class of a protobuf type is | |
| # `MessageMapContainer`, and, if `True`, return a MapComposite. | |
| # See https://github.com/protocolbuffers/protobuf/issues/16596 | |
| if PROTOBUF_VERSION[0:2] in ["3.", "4."]: | |
| map_composite_types += (_message.MessageMapContainer,) | |
| __all__ = ( | |
| "repeated_composite_types", | |
| "repeated_scalar_types", | |
| "map_composite_types", | |
| "map_composite_type_names", | |
| ) | |