| # 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__ = 'tibell@google.com (Johan Tibell)' |
| |
| from google.protobuf.pyext import _message |
| from google.protobuf import message |
| |
| |
| def NewMessage(bases, message_descriptor, dictionary): |
| """Creates a new protocol message *class*.""" |
| new_bases = [] |
| for base in bases: |
| if base is message.Message: |
| # _message.Message must come before message.Message as it |
| # overrides methods in that class. |
| new_bases.append(_message.Message) |
| new_bases.append(base) |
| return tuple(new_bases) |
| |
| |
| def InitMessage(message_descriptor, cls): |
| """Constructs a new message instance (called before instance's __init__).""" |
| |
| def SubInit(self, **kwargs): |
| super(cls, self).__init__(message_descriptor, **kwargs) |
| cls.__init__ = SubInit |
| cls.AddDescriptors(message_descriptor) |