1// Protocol Buffers - Google's data interchange format
2// Copyright 2008 Google Inc. All rights reserved.
3// https://developers.google.com/protocol-buffers/
4//
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6// modification, are permitted provided that the following conditions are
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13// in the documentation and/or other materials provided with the
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18//
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20// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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30
31#ifndef GOOGLE_PROTOBUF_GENERATED_ENUM_UTIL_H__
32#define GOOGLE_PROTOBUF_GENERATED_ENUM_UTIL_H__
33
34#include <type_traits>
35
36#include <google/protobuf/message_lite.h>
37#include <google/protobuf/stubs/strutil.h>
38
39#include <google/protobuf/port_def.inc>
40
41#ifdef SWIG
42#error "You cannot SWIG proto headers"
43#endif
44
45namespace google {
46namespace protobuf {
47
48// This type trait can be used to cause templates to only match proto2 enum
49// types.
50template <typename T>
51struct is_proto_enum : ::std::false_type {};
52
53namespace internal {
54
55// The table entry format for storing enum name-to-value mapping used with lite
56// protos. This struct and the following related functions should only be used
57// by protobuf generated code.
58struct EnumEntry {
59 StringPiece name;
60 int value;
61};
62
63// Looks up a numeric enum value given the string name.
64PROTOBUF_EXPORT bool LookUpEnumValue(const EnumEntry* enums, size_t size,
65 StringPiece name, int* value);
66
67// Looks up an enum name given the numeric value.
68PROTOBUF_EXPORT int LookUpEnumName(const EnumEntry* enums,
69 const int* sorted_indices, size_t size,
70 int value);
71
72// Initializes the list of enum names in std::string form.
73PROTOBUF_EXPORT bool InitializeEnumStrings(
74 const EnumEntry* enums, const int* sorted_indices, size_t size,
75 internal::ExplicitlyConstructed<std::string>* enum_strings);
76
77} // namespace internal
78} // namespace protobuf
79} // namespace google
80
81#include <google/protobuf/port_undef.inc>
82
83#endif // GOOGLE_PROTOBUF_GENERATED_ENUM_UTIL_H__
84

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