// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
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#ifndef GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_EXTENSION_H__
#define GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_EXTENSION_H__

#include <google/protobuf/descriptor.h>
#include <google/protobuf/io/printer.h>

namespace google {
namespace protobuf {
namespace compiler {
namespace objectivec {

class ExtensionGenerator {
 public:
  ExtensionGenerator(const std::string& root_class_name,
                     const FieldDescriptor* descriptor);
  ~ExtensionGenerator();

  ExtensionGenerator(const ExtensionGenerator&) = delete;
  ExtensionGenerator& operator=(const ExtensionGenerator&) = delete;

  void GenerateMembersHeader(io::Printer* printer);
  void GenerateStaticVariablesInitialization(io::Printer* printer);
  void GenerateRegistrationSource(io::Printer* printer);
  void DetermineObjectiveCClassDefinitions(std::set<std::string>* fwd_decls);

 private:
  std::string method_name_;
  std::string root_class_and_method_name_;
  const FieldDescriptor* descriptor_;
};

}  // namespace objectivec
}  // namespace compiler
}  // namespace protobuf
}  // namespace google

#endif  // GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_MESSAGE_H__