generated from pypa/sampleproject
-
Notifications
You must be signed in to change notification settings - Fork 0
/
builder.py
130 lines (109 loc) · 5.07 KB
/
builder.py
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
# 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.
"""Builds descriptors, message classes and services for generated _pb2.py.
This file is only called in python generated _pb2.py files. It builds
descriptors, message classes and services that users can directly use
in generated code.
"""
__author__ = 'jieluo@google.com (Jie Luo)'
from google.protobuf.internal import enum_type_wrapper
from google.protobuf import message as _message
from google.protobuf import reflection as _reflection
from google.protobuf import symbol_database as _symbol_database
_sym_db = _symbol_database.Default()
def BuildMessageAndEnumDescriptors(file_des, module):
"""Builds message and enum descriptors.
Args:
file_des: FileDescriptor of the .proto file
module: Generated _pb2 module
"""
def BuildNestedDescriptors(msg_des, prefix):
for (name, nested_msg) in msg_des.nested_types_by_name.items():
module_name = prefix + name.upper()
module[module_name] = nested_msg
BuildNestedDescriptors(nested_msg, module_name + '_')
for enum_des in msg_des.enum_types:
module[prefix + enum_des.name.upper()] = enum_des
for (name, msg_des) in file_des.message_types_by_name.items():
module_name = '_' + name.upper()
module[module_name] = msg_des
BuildNestedDescriptors(msg_des, module_name + '_')
def BuildTopDescriptorsAndMessages(file_des, module_name, module):
"""Builds top level descriptors and message classes.
Args:
file_des: FileDescriptor of the .proto file
module_name: str, the name of generated _pb2 module
module: Generated _pb2 module
"""
def BuildMessage(msg_des):
create_dict = {}
for (name, nested_msg) in msg_des.nested_types_by_name.items():
create_dict[name] = BuildMessage(nested_msg)
create_dict['DESCRIPTOR'] = msg_des
create_dict['__module__'] = module_name
message_class = _reflection.GeneratedProtocolMessageType(
msg_des.name, (_message.Message,), create_dict)
_sym_db.RegisterMessage(message_class)
return message_class
# top level enums
for (name, enum_des) in file_des.enum_types_by_name.items():
module['_' + name.upper()] = enum_des
module[name] = enum_type_wrapper.EnumTypeWrapper(enum_des)
for enum_value in enum_des.values:
module[enum_value.name] = enum_value.number
# top level extensions
for (name, extension_des) in file_des.extensions_by_name.items():
module[name.upper() + '_FIELD_NUMBER'] = extension_des.number
module[name] = extension_des
# services
for (name, service) in file_des.services_by_name.items():
module['_' + name.upper()] = service
# Build messages.
for (name, msg_des) in file_des.message_types_by_name.items():
module[name] = BuildMessage(msg_des)
def BuildServices(file_des, module_name, module):
"""Builds services classes and services stub class.
Args:
file_des: FileDescriptor of the .proto file
module_name: str, the name of generated _pb2 module
module: Generated _pb2 module
"""
# pylint: disable=g-import-not-at-top
from google.protobuf import service as _service
from google.protobuf import service_reflection
# pylint: enable=g-import-not-at-top
for (name, service) in file_des.services_by_name.items():
module[name] = service_reflection.GeneratedServiceType(
name, (_service.Service,),
dict(DESCRIPTOR=service, __module__=module_name))
stub_name = name + '_Stub'
module[stub_name] = service_reflection.GeneratedServiceStubType(
stub_name, (module[name],),
dict(DESCRIPTOR=service, __module__=module_name))