1 // Protocol Buffers - Google's data interchange format
2 // Copyright 2008 Google Inc. All rights reserved.
3 // https://developers.google.com/protocol-buffers/
5 // Redistribution and use in source and binary forms, with or without
6 // modification, are permitted provided that the following conditions are
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
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.
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.
31 // Author: kenton@google.com (Kenton Varda)
32 // Based on original Protocol Buffers design by
33 // Sanjay Ghemawat, Jeff Dean, and others.
35 // This header is logically internal, but is made public because it is used
36 // from protocol-compiler-generated code, which may reside in other components.
38 #ifndef GOOGLE_PROTOBUF_REFLECTION_OPS_H__
39 #define GOOGLE_PROTOBUF_REFLECTION_OPS_H__
41 #include <google/protobuf/stubs/common.h>
42 #include <google/protobuf/message.h>
45 #error "You cannot SWIG proto headers"
48 #include <google/protobuf/port_def.inc>
54 // Basic operations that can be performed using reflection.
55 // These can be used as a cheap way to implement the corresponding
56 // methods of the Message interface, though they are likely to be
57 // slower than implementations tailored for the specific message type.
59 // This class should stay limited to operations needed to implement
60 // the Message interface.
62 // This class is really a namespace that contains only static methods.
63 class PROTOBUF_EXPORT ReflectionOps {
65 static void Copy(const Message& from, Message* to);
66 static void Merge(const Message& from, Message* to);
67 static void Clear(Message* message);
68 static bool IsInitialized(const Message& message);
69 static void DiscardUnknownFields(Message* message);
71 // Finds all unset required fields in the message and adds their full
72 // paths (e.g. "foo.bar[5].baz") to *names. "prefix" will be attached to
73 // the front of each name.
74 static void FindInitializationErrors(const Message& message,
75 const std::string& prefix,
76 std::vector<std::string>* errors);
79 // All methods are static. No need to construct.
80 GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ReflectionOps);
83 } // namespace internal
84 } // namespace protobuf
87 #include <google/protobuf/port_undef.inc>
89 #endif // GOOGLE_PROTOBUF_REFLECTION_OPS_H__