1// Protocol Buffers - Google's data interchange format
2// Copyright 2008 Google Inc.  All rights reserved.
3// https://developers.google.com/protocol-buffers/
4//
5// Redistribution and use in source and binary forms, with or without
6// modification, are permitted provided that the following conditions are
7// met:
8//
9//     * Redistributions of source code must retain the above copyright
10// notice, this list of conditions and the following disclaimer.
11//     * Redistributions in binary form must reproduce the above
12// copyright notice, this list of conditions and the following disclaimer
13// in the documentation and/or other materials provided with the
14// distribution.
15//     * Neither the name of Google Inc. nor the names of its
16// contributors may be used to endorse or promote products derived from
17// this software without specific prior written permission.
18//
19// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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28// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31// Author: petar@google.com (Petar Petrov)
32
33#ifndef GOOGLE_PROTOBUF_PYTHON_CPP_DESCRIPTOR_H__
34#define GOOGLE_PROTOBUF_PYTHON_CPP_DESCRIPTOR_H__
35
36#include <Python.h>
37#include <structmember.h>
38
39#include <google/protobuf/descriptor.h>
40
41#if PY_VERSION_HEX < 0x02050000 && !defined(PY_SSIZE_T_MIN)
42typedef int Py_ssize_t;
43#define PY_SSIZE_T_MAX INT_MAX
44#define PY_SSIZE_T_MIN INT_MIN
45#endif
46
47namespace google {
48namespace protobuf {
49namespace python {
50
51typedef struct CFieldDescriptor {
52  PyObject_HEAD
53
54  // The proto2 descriptor that this object represents.
55  const google::protobuf::FieldDescriptor* descriptor;
56
57  // Reference to the original field object in the Python DESCRIPTOR.
58  PyObject* descriptor_field;
59} CFieldDescriptor;
60
61typedef struct {
62  PyObject_HEAD
63
64  const google::protobuf::DescriptorPool* pool;
65} CDescriptorPool;
66
67extern PyTypeObject CFieldDescriptor_Type;
68
69extern PyTypeObject CDescriptorPool_Type;
70
71namespace cdescriptor_pool {
72
73// Looks up a field by name. Returns a CDescriptor corresponding to
74// the field on success, or NULL on failure.
75//
76// Returns a new reference.
77PyObject* FindFieldByName(CDescriptorPool* self, PyObject* name);
78
79// Looks up an extension by name. Returns a CDescriptor corresponding
80// to the field on success, or NULL on failure.
81//
82// Returns a new reference.
83PyObject* FindExtensionByName(CDescriptorPool* self, PyObject* arg);
84
85}  // namespace cdescriptor_pool
86
87PyObject* Python_NewCDescriptorPool(PyObject* ignored, PyObject* args);
88PyObject* Python_BuildFile(PyObject* ignored, PyObject* args);
89bool InitDescriptor();
90google::protobuf::DescriptorPool* GetDescriptorPool();
91
92}  // namespace python
93}  // namespace protobuf
94
95}  // namespace google
96#endif  // GOOGLE_PROTOBUF_PYTHON_CPP_DESCRIPTOR_H__
97