/usr/lib/python3/dist-packages/google/protobuf/descriptor_database.py is in python3-protobuf 3.0.0-9.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | # 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.
"""Provides a container for DescriptorProtos."""
__author__ = 'matthewtoia@google.com (Matt Toia)'
class Error(Exception):
pass
class DescriptorDatabaseConflictingDefinitionError(Error):
"""Raised when a proto is added with the same name & different descriptor."""
class DescriptorDatabase(object):
"""A container accepting FileDescriptorProtos and maps DescriptorProtos."""
def __init__(self):
self._file_desc_protos_by_file = {}
self._file_desc_protos_by_symbol = {}
def Add(self, file_desc_proto):
"""Adds the FileDescriptorProto and its types to this database.
Args:
file_desc_proto: The FileDescriptorProto to add.
Raises:
DescriptorDatabaseException: if an attempt is made to add a proto
with the same name but different definition than an exisiting
proto in the database.
"""
proto_name = file_desc_proto.name
if proto_name not in self._file_desc_protos_by_file:
self._file_desc_protos_by_file[proto_name] = file_desc_proto
elif self._file_desc_protos_by_file[proto_name] != file_desc_proto:
raise DescriptorDatabaseConflictingDefinitionError(
'%s already added, but with different descriptor.' % proto_name)
# Add the top-level Message, Enum and Extension descriptors to the index.
package = file_desc_proto.package
for message in file_desc_proto.message_type:
self._file_desc_protos_by_symbol.update(
(name, file_desc_proto) for name in _ExtractSymbols(message, package))
for enum in file_desc_proto.enum_type:
self._file_desc_protos_by_symbol[
'.'.join((package, enum.name))] = file_desc_proto
for extension in file_desc_proto.extension:
self._file_desc_protos_by_symbol[
'.'.join((package, extension.name))] = file_desc_proto
def FindFileByName(self, name):
"""Finds the file descriptor proto by file name.
Typically the file name is a relative path ending to a .proto file. The
proto with the given name will have to have been added to this database
using the Add method or else an error will be raised.
Args:
name: The file name to find.
Returns:
The file descriptor proto matching the name.
Raises:
KeyError if no file by the given name was added.
"""
return self._file_desc_protos_by_file[name]
def FindFileContainingSymbol(self, symbol):
"""Finds the file descriptor proto containing the specified symbol.
The symbol should be a fully qualified name including the file descriptor's
package and any containing messages. Some examples:
'some.package.name.Message'
'some.package.name.Message.NestedEnum'
The file descriptor proto containing the specified symbol must be added to
this database using the Add method or else an error will be raised.
Args:
symbol: The fully qualified symbol name.
Returns:
The file descriptor proto containing the symbol.
Raises:
KeyError if no file contains the specified symbol.
"""
return self._file_desc_protos_by_symbol[symbol]
def _ExtractSymbols(desc_proto, package):
"""Pulls out all the symbols from a descriptor proto.
Args:
desc_proto: The proto to extract symbols from.
package: The package containing the descriptor type.
Yields:
The fully qualified name found in the descriptor.
"""
message_name = '.'.join((package, desc_proto.name))
yield message_name
for nested_type in desc_proto.nested_type:
for symbol in _ExtractSymbols(nested_type, message_name):
yield symbol
for enum_type in desc_proto.enum_type:
yield '.'.join((message_name, enum_type.name))
|