/thirdparty/breakpad/third_party/protobuf/protobuf/src/google/protobuf/reflection_ops.h

 1// Protocol Buffers - Google's data interchange format
 2// Copyright 2008 Google Inc.  All rights reserved.
 3// http://code.google.com/p/protobuf/
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30
31// Author: kenton@google.com (Kenton Varda)
32//  Based on original Protocol Buffers design by
33//  Sanjay Ghemawat, Jeff Dean, and others.
34//
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.
37
38#ifndef GOOGLE_PROTOBUF_REFLECTION_OPS_H__
39#define GOOGLE_PROTOBUF_REFLECTION_OPS_H__
40
41#include <google/protobuf/message.h>
42
43namespace google {
44namespace protobuf {
45namespace internal {
46
47// Basic operations that can be performed using reflection.
48// These can be used as a cheap way to implement the corresponding
49// methods of the Message interface, though they are likely to be
50// slower than implementations tailored for the specific message type.
51//
52// This class should stay limited to operations needed to implement
53// the Message interface.
54//
55// This class is really a namespace that contains only static methods.
56class LIBPROTOBUF_EXPORT ReflectionOps {
57 public:
58  static void Copy(const Message& from, Message* to);
59  static void Merge(const Message& from, Message* to);
60  static void Clear(Message* message);
61  static bool IsInitialized(const Message& message);
62  static void DiscardUnknownFields(Message* message);
63
64  // Finds all unset required fields in the message and adds their full
65  // paths (e.g. "foo.bar[5].baz") to *names.  "prefix" will be attached to
66  // the front of each name.
67  static void FindInitializationErrors(const Message& message,
68                                       const string& prefix,
69                                       vector<string>* errors);
70
71 private:
72  // All methods are static.  No need to construct.
73  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ReflectionOps);
74};
75
76}  // namespace internal
77}  // namespace protobuf
78
79}  // namespace google
80#endif  // GOOGLE_PROTOBUF_REFLECTION_OPS_H__