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: kenton@google.com (Kenton Varda) 32 // Based on original Protocol Buffers design by 33 // Sanjay Ghemawat, Jeff Dean, and others. 34 35 #ifndef GOOGLE_PROTOBUF_COMPILER_JAVA_ENUM_H__ 36 #define GOOGLE_PROTOBUF_COMPILER_JAVA_ENUM_H__ 37 38 #include <string> 39 #include <vector> 40 #include <google/protobuf/descriptor.h> 41 42 namespace google { 43 namespace protobuf { 44 namespace io { 45 class Printer; // printer.h 46 } 47 } 48 49 namespace protobuf { 50 namespace compiler { 51 namespace java { 52 53 class EnumGenerator { 54 public: 55 explicit EnumGenerator(const EnumDescriptor* descriptor); 56 ~EnumGenerator(); 57 58 void Generate(io::Printer* printer); 59 60 private: 61 const EnumDescriptor* descriptor_; 62 63 // The proto language allows multiple enum constants to have the same numeric 64 // value. Java, however, does not allow multiple enum constants to be 65 // considered equivalent. We treat the first defined constant for any 66 // given numeric value as "canonical" and the rest as aliases of that 67 // canonical value. 68 vector<const EnumValueDescriptor*> canonical_values_; 69 70 struct Alias { 71 const EnumValueDescriptor* value; 72 const EnumValueDescriptor* canonical_value; 73 }; 74 vector<Alias> aliases_; 75 76 GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(EnumGenerator); 77 }; 78 79 } // namespace java 80 } // namespace compiler 81 } // namespace protobuf 82 83 } // namespace google 84 #endif // GOOGLE_PROTOBUF_COMPILER_JAVA_ENUM_H__ 85