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 31 // Author: jasonh (at) 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/stubs/template_util.h> 45 #include <google/protobuf/generated_enum_util.h> 46 47 namespace google { 48 namespace protobuf { 49 class EnumDescriptor; 50 } // namespace protobuf 51 52 namespace protobuf { 53 54 // Returns the EnumDescriptor for enum type E, which must be a 55 // proto-declared enum type. Code generated by the protocol compiler 56 // will include specializations of this template for each enum type declared. 57 template <typename E> 58 const EnumDescriptor* GetEnumDescriptor(); 59 60 namespace internal { 61 62 // Helper for EnumType_Parse functions: try to parse the string 'name' as an 63 // enum name of the given type, returning true and filling in value on success, 64 // or returning false and leaving value unchanged on failure. 65 LIBPROTOBUF_EXPORT bool ParseNamedEnum(const EnumDescriptor* descriptor, 66 const string& name, 67 int* value); 68 69 template<typename EnumType> 70 bool ParseNamedEnum(const EnumDescriptor* descriptor, 71 const string& name, 72 EnumType* value) { 73 int tmp; 74 if (!ParseNamedEnum(descriptor, name, &tmp)) return false; 75 *value = static_cast<EnumType>(tmp); 76 return true; 77 } 78 79 // Just a wrapper around printing the name of a value. The main point of this 80 // function is not to be inlined, so that you can do this without including 81 // descriptor.h. 82 LIBPROTOBUF_EXPORT const string& NameOfEnum(const EnumDescriptor* descriptor, int value); 83 84 } // namespace internal 85 } // namespace protobuf 86 87 } // namespace google 88 #endif // GOOGLE_PROTOBUF_GENERATED_ENUM_REFLECTION_H__ 89
