65 lines
2.3 KiB
Python
65 lines
2.3 KiB
Python
# Copyright 2018 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# This file pulls in the container types from internal protocol buffers,
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# and exports the types available.
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#
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# If the C extensions were not installed, then their container types will
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# not be included.
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from google.protobuf.internal import containers
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# Import all message types to ensure that pyext types are recognized
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# when upb types exist. Conda's protobuf defaults to pyext despite upb existing.
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# See https://github.com/googleapis/proto-plus-python/issues/470
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try:
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from google._upb import _message as _message_upb
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except ImportError:
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_message_upb = None
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try:
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from google.protobuf.pyext import _message as _message_pyext
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except ImportError:
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_message_pyext = None
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repeated_composite_types = (containers.RepeatedCompositeFieldContainer,)
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repeated_scalar_types = (containers.RepeatedScalarFieldContainer,)
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map_composite_types = (containers.MessageMap,)
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# In `proto/marshal.py`, for compatibility with protobuf 5.x,
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# we'll use `map_composite_type_names` to check whether
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# the name of the class of a protobuf type is
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# `MessageMapContainer`, and, if `True`, return a MapComposite.
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# See https://github.com/protocolbuffers/protobuf/issues/16596
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map_composite_type_names = ("MessageMapContainer",)
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for message in [_message_upb, _message_pyext]:
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if message:
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repeated_composite_types += (message.RepeatedCompositeContainer,)
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repeated_scalar_types += (message.RepeatedScalarContainer,)
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try:
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map_composite_types += (message.MessageMapContainer,)
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except AttributeError:
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# The `MessageMapContainer` attribute is not available in Protobuf 5.x+
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pass
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__all__ = (
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"repeated_composite_types",
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"repeated_scalar_types",
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"map_composite_types",
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"map_composite_type_names",
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)
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