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| # Protocol Buffers - Google's data interchange format | |
| # Copyright 2008 Google Inc. All rights reserved. | |
| # https://developers.google.com/protocol-buffers/ | |
| # | |
| # Redistribution and use in source and binary forms, with or without | |
| # modification, are permitted provided that the following conditions are | |
| # met: | |
| # | |
| # * Redistributions of source code must retain the above copyright | |
| # notice, this list of conditions and the following disclaimer. | |
| # * Redistributions in binary form must reproduce the above | |
| # copyright notice, this list of conditions and the following disclaimer | |
| # in the documentation and/or other materials provided with the | |
| # distribution. | |
| # * Neither the name of Google Inc. nor the names of its | |
| # contributors may be used to endorse or promote products derived from | |
| # this software without specific prior written permission. | |
| # | |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| """Protocol message implementation hooks for C++ implementation. | |
| Contains helper functions used to create protocol message classes from | |
| Descriptor objects at runtime backed by the protocol buffer C++ API. | |
| """ | |
| __author__ = '[email protected] (Johan Tibell)' | |
| from google.protobuf.pyext import _message | |
| class GeneratedProtocolMessageType(_message.MessageMeta): | |
| """Metaclass for protocol message classes created at runtime from Descriptors. | |
| The protocol compiler currently uses this metaclass to create protocol | |
| message classes at runtime. Clients can also manually create their own | |
| classes at runtime, as in this example: | |
| mydescriptor = Descriptor(.....) | |
| factory = symbol_database.Default() | |
| factory.pool.AddDescriptor(mydescriptor) | |
| MyProtoClass = factory.GetPrototype(mydescriptor) | |
| myproto_instance = MyProtoClass() | |
| myproto.foo_field = 23 | |
| ... | |
| The above example will not work for nested types. If you wish to include them, | |
| use reflection.MakeClass() instead of manually instantiating the class in | |
| order to create the appropriate class structure. | |
| """ | |
| # Must be consistent with the protocol-compiler code in | |
| # proto2/compiler/internal/generator.*. | |
| _DESCRIPTOR_KEY = 'DESCRIPTOR' | |