compiler/objectivec/oneof.h

0001 // Protocol Buffers - Google's data interchange format
0002 // Copyright 2008 Google Inc.  All rights reserved.
0003 //
0004 // Use of this source code is governed by a BSD-style
0005 // license that can be found in the LICENSE file or at
0006 // https://developers.google.com/open-source/licenses/bsd
0007
0008 #ifndef GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_ONEOF_H__
0009 #define GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_ONEOF_H__
0010
0011 #include <string>
0012
0013 #include "absl/container/flat_hash_map.h"
0014 #include "absl/strings/string_view.h"
0015 #include "google/protobuf/compiler/objectivec/options.h"
0016 #include "google/protobuf/descriptor.h"
0017 #include "google/protobuf/io/printer.h"
0018
0019 namespace google {
0020 namespace protobuf {
0021 namespace compiler {
0022 namespace objectivec {
0023
0024 class OneofGenerator {
0025  public:
0026   OneofGenerator(const OneofDescriptor* descriptor,
0027                  const GenerationOptions& generation_options);
0028   ~OneofGenerator() = default;
0029
0030   OneofGenerator(const OneofGenerator&) = delete;
0031   OneofGenerator& operator=(const OneofGenerator&) = delete;
0032
0033   void SetOneofIndexBase(int index_base);
0034
0035   void GenerateCaseEnum(io::Printer* printer) const;
0036
0037   void GeneratePublicCasePropertyDeclaration(io::Printer* printer) const;
0038   void GenerateClearFunctionDeclaration(io::Printer* printer) const;
0039
0040   void GeneratePropertyImplementation(io::Printer* printer) const;
0041   void GenerateClearFunctionImplementation(io::Printer* printer) const;
0042
0043   std::string DescriptorName() const;
0044   std::string HasIndexAsString() const;
0045
0046  private:
0047   const OneofDescriptor* descriptor_;
0048   const GenerationOptions& generation_options_;
0049   absl::flat_hash_map<absl::string_view, std::string> variables_;
0050 };
0051
0052 }  // namespace objectivec
0053 }  // namespace compiler
0054 }  // namespace protobuf
0055 }  // namespace google
0056
0057 #endif  // GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_ONEOF_H__