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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29// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31// Author: jasonh@google.com (Jason Hsueh)
32//
33// This header is logically internal, but is made public because it is used
34// from protocol-compiler-generated code, which may reside in other components.
35// It provides reflection support for generated enums, and is included in
36// generated .pb.h files and should have minimal dependencies. The methods are
37// implemented in generated_message_reflection.cc.
38
39#ifndef GOOGLE_PROTOBUF_GENERATED_ENUM_REFLECTION_H__
40#define GOOGLE_PROTOBUF_GENERATED_ENUM_REFLECTION_H__
41
42#include <string>
43
44#include <google/protobuf/generated_enum_util.h>
45#include <google/protobuf/port.h>
46
47#ifdef SWIG
48#error "You cannot SWIG proto headers"
49#endif
50
51#include <google/protobuf/port_def.inc>
52
53namespace google {
54namespace protobuf {
55class EnumDescriptor;
56} // namespace protobuf
57} // namespace google
58
59namespace google {
60namespace protobuf {
61
62// Returns the EnumDescriptor for enum type E, which must be a
63// proto-declared enum type. Code generated by the protocol compiler
64// will include specializations of this template for each enum type declared.
65template <typename E>
66const EnumDescriptor* GetEnumDescriptor();
67
68namespace internal {
69
70// Helper for EnumType_Parse functions: try to parse the string 'name' as
71// an enum name of the given type, returning true and filling in value on
72// success, or returning false and leaving value unchanged on failure.
73PROTOBUF_EXPORT bool ParseNamedEnum(const EnumDescriptor* descriptor,
74 const std::string& name, int* value);
75
76template <typename EnumType>
77bool ParseNamedEnum(const EnumDescriptor* descriptor, const std::string& name,
78 EnumType* value) {
79 int tmp;
80 if (!ParseNamedEnum(descriptor, name, value: &tmp)) return false;
81 *value = static_cast<EnumType>(tmp);
82 return true;
83}
84
85// Just a wrapper around printing the name of a value. The main point of this
86// function is not to be inlined, so that you can do this without including
87// descriptor.h.
88PROTOBUF_EXPORT const std::string& NameOfEnum(const EnumDescriptor* descriptor,
89 int value);
90
91} // namespace internal
92} // namespace protobuf
93} // namespace google
94
95#include <google/protobuf/port_undef.inc>
96
97#endif // GOOGLE_PROTOBUF_GENERATED_ENUM_REFLECTION_H__
98

source code of include/google/protobuf/generated_enum_reflection.h