1 // Protocol Buffers - Google's data interchange format 2 // Copyright 2008 Google Inc. All rights reserved. 3 // http://code.google.com/p/protobuf/ 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 namespace google { 45 namespace protobuf { 46 class EnumDescriptor; 47 } // namespace protobuf 48 49 namespace protobuf { 50 51 // Returns the EnumDescriptor for enum type E, which must be a 52 // proto-declared enum type. Code generated by the protocol compiler 53 // will include specializations of this template for each enum type declared. 54 template <typename E> 55 const EnumDescriptor* GetEnumDescriptor(); 56 57 namespace internal { 58 59 // Helper for EnumType_Parse functions: try to parse the string 'name' as an 60 // enum name of the given type, returning true and filling in value on success, 61 // or returning false and leaving value unchanged on failure. 62 LIBPROTOBUF_EXPORT bool ParseNamedEnum(const EnumDescriptor* descriptor, 63 const string& name, 64 int* value); 65 66 template<typename EnumType> 67 bool ParseNamedEnum(const EnumDescriptor* descriptor, 68 const string& name, 69 EnumType* value) { 70 int tmp; 71 if (!ParseNamedEnum(descriptor, name, &tmp)) return false; 72 *value = static_cast<EnumType>(tmp); 73 return true; 74 } 75 76 // Just a wrapper around printing the name of a value. The main point of this 77 // function is not to be inlined, so that you can do this without including 78 // descriptor.h. 79 LIBPROTOBUF_EXPORT const string& NameOfEnum(const EnumDescriptor* descriptor, int value); 80 81 } // namespace internal 82 } // namespace protobuf 83 84 } // namespace google 85 #endif // GOOGLE_PROTOBUF_GENERATED_ENUM_REFLECTION_H__ 86
