compiler/objectivec/map_field.h

0001 // Protocol Buffers - Google's data interchange format
0002 // Copyright 2015 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_MAP_FIELD_H__
0009 #define GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_MAP_FIELD_H__
0010
0011 #include <memory>
0012 #include <string>
0013
0014 #include "absl/container/btree_set.h"
0015 #include "absl/container/flat_hash_set.h"
0016 #include "google/protobuf/compiler/objectivec/field.h"
0017 #include "google/protobuf/compiler/objectivec/options.h"
0018 #include "google/protobuf/descriptor.h"
0019
0020 namespace google {
0021 namespace protobuf {
0022 namespace compiler {
0023 namespace objectivec {
0024
0025 class MapFieldGenerator : public RepeatedFieldGenerator {
0026   friend FieldGenerator* FieldGenerator::Make(
0027       const FieldDescriptor* field,
0028       const GenerationOptions& generation_options);
0029
0030  public:
0031   void EmitArrayComment(io::Printer* printer) const override;
0032
0033   MapFieldGenerator(const MapFieldGenerator&) = delete;
0034   MapFieldGenerator& operator=(const MapFieldGenerator&) = delete;
0035
0036  protected:
0037   MapFieldGenerator(const FieldDescriptor* descriptor,
0038                     const GenerationOptions& generation_options);
0039   ~MapFieldGenerator() override = default;
0040
0041   void DetermineObjectiveCClassDefinitions(
0042       absl::btree_set<std::string>* fwd_decls) const override;
0043   void DetermineForwardDeclarations(absl::btree_set<std::string>* fwd_decls,
0044                                     bool include_external_types) const override;
0045   void DetermineNeededFiles(
0046       absl::flat_hash_set<const FileDescriptor*>* deps) const override;
0047
0048  private:
0049   std::unique_ptr<FieldGenerator> value_field_generator_;
0050 };
0051
0052 }  // namespace objectivec
0053 }  // namespace compiler
0054 }  // namespace protobuf
0055 }  // namespace google
0056
0057 #endif  // GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_MAP_FIELD_H__