generated_enum_util.h 3.2 KB

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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. #ifndef GOOGLE_PROTOBUF_GENERATED_ENUM_UTIL_H__
  31. #define GOOGLE_PROTOBUF_GENERATED_ENUM_UTIL_H__
  32. #include <type_traits>
  33. #include <google/protobuf/message_lite.h>
  34. #include <google/protobuf/stubs/strutil.h>
  35. #include <google/protobuf/port_def.inc>
  36. #ifdef SWIG
  37. #error "You cannot SWIG proto headers"
  38. #endif
  39. namespace google {
  40. namespace protobuf {
  41. // This type trait can be used to cause templates to only match proto2 enum
  42. // types.
  43. template <typename T>
  44. struct is_proto_enum : ::std::false_type {};
  45. namespace internal {
  46. // The table entry format for storing enum name-to-value mapping used with lite
  47. // protos. This struct and the following related functions should only be used
  48. // by protobuf generated code.
  49. struct EnumEntry {
  50. StringPiece name;
  51. int value;
  52. };
  53. // Looks up a numeric enum value given the string name.
  54. PROTOBUF_EXPORT bool LookUpEnumValue(const EnumEntry* enums, size_t size,
  55. StringPiece name, int* value);
  56. // Looks up an enum name given the numeric value.
  57. PROTOBUF_EXPORT int LookUpEnumName(const EnumEntry* enums,
  58. const int* sorted_indices, size_t size,
  59. int value);
  60. // Initializes the list of enum names in std::string form.
  61. PROTOBUF_EXPORT bool InitializeEnumStrings(
  62. const EnumEntry* enums, const int* sorted_indices, size_t size,
  63. internal::ExplicitlyConstructed<std::string>* enum_strings);
  64. } // namespace internal
  65. } // namespace protobuf
  66. } // namespace google
  67. #include <google/protobuf/port_undef.inc>
  68. #endif // GOOGLE_PROTOBUF_GENERATED_ENUM_UTIL_H__