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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
27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 #ifndef GOOGLE_PROTOBUF_PYTHON_CPP_DESCRIPTOR_DATABASE_H__
32 #define GOOGLE_PROTOBUF_PYTHON_CPP_DESCRIPTOR_DATABASE_H__
33 
34 #include <Python.h>
35 
36 #include <google/protobuf/descriptor_database.h>
37 
38 namespace google {
39 namespace protobuf {
40 namespace python {
41 
42 class PyDescriptorDatabase : public DescriptorDatabase {
43  public:
44   explicit PyDescriptorDatabase(PyObject* py_database);
45   ~PyDescriptorDatabase();
46 
47   // Implement the abstract interface. All these functions fill the output
48   // with a copy of FileDescriptorProto.
49 
50   // Find a file by file name.
51   bool FindFileByName(const string& filename,
52                       FileDescriptorProto* output);
53 
54   // Find the file that declares the given fully-qualified symbol name.
55   bool FindFileContainingSymbol(const string& symbol_name,
56                                 FileDescriptorProto* output);
57 
58   // Find the file which defines an extension extending the given message type
59   // with the given field number.
60   // Containing_type must be a fully-qualified type name.
61   // Python objects are not required to implement this method.
62   bool FindFileContainingExtension(const string& containing_type,
63                                    int field_number,
64                                    FileDescriptorProto* output);
65 
66  private:
67   // The python object that implements the database. The reference is owned.
68   PyObject* py_database_;
69 };
70 
71 }  // namespace python
72 }  // namespace protobuf
73 
74 }  // namespace google
75 #endif  // GOOGLE_PROTOBUF_PYTHON_CPP_DESCRIPTOR_DATABASE_H__
76