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_H__ 36#define GOOGLE_PROTOBUF_COMPILER_JAVA_ENUM_H__ 37 38#include <string> 39#include <vector> 40#include <google/protobuf/descriptor.h> 41 42namespace google { 43namespace 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 55namespace protobuf { 56namespace compiler { 57namespace java { 58 59class EnumGenerator { 60 public: 61 explicit EnumGenerator(const EnumDescriptor* descriptor, 62 bool immutable_api, 63 Context* context); 64 ~EnumGenerator(); 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(EnumGenerator); 92}; 93 94} // namespace java 95} // namespace compiler 96} // namespace protobuf 97 98} // namespace google 99#endif // GOOGLE_PROTOBUF_COMPILER_JAVA_ENUM_H__ 100