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: 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_LITE_H__ 36 #define GOOGLE_PROTOBUF_COMPILER_JAVA_ENUM_LITE_H__ 37 38 #include <string> 39 #include <vector> 40 #include <google/protobuf/descriptor.h> 41 42 namespace google { 43 namespace protobuf { 44 namespace compiler { 45 namespace java { 46 class Context; // context.h 47 class ClassNameResolver; // name_resolver.h 48 } 49 } 50 namespace io { 51 class Printer; // printer.h 52 } 53 } 54 55 namespace protobuf { 56 namespace compiler { 57 namespace java { 58 59 class EnumLiteGenerator { 60 public: 61 explicit EnumLiteGenerator(const EnumDescriptor* descriptor, 62 bool immutable_api, 63 Context* context); 64 ~EnumLiteGenerator(); 65 66 void Generate(io::Printer* printer); 67 68 private: 69 const EnumDescriptor* descriptor_; 70 71 // The proto language allows multiple enum constants to have the same numeric 72 // value. Java, however, does not allow multiple enum constants to be 73 // considered equivalent. We treat the first defined constant for any 74 // given numeric value as "canonical" and the rest as aliases of that 75 // canonical value. 76 vector<const EnumValueDescriptor*> canonical_values_; 77 78 struct Alias { 79 const EnumValueDescriptor* value; 80 const EnumValueDescriptor* canonical_value; 81 }; 82 vector<Alias> aliases_; 83 84 bool immutable_api_; 85 86 Context* context_; 87 ClassNameResolver* name_resolver_; 88 89 bool CanUseEnumValues(); 90 91 GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(EnumLiteGenerator); 92 }; 93 94 } // namespace java 95 } // namespace compiler 96 } // namespace protobuf 97 98 } // namespace google 99 #endif // GOOGLE_PROTOBUF_COMPILER_JAVA_ENUM_LITE_H__ 100