// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// Generates ObjectiveC code for a given .proto file.

#ifndef GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_GENERATOR_H__
#define GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_GENERATOR_H__

#include <string>
#include <vector>

#include "google/protobuf/compiler/code_generator.h"
#include "google/protobuf/descriptor.h"

// Must be included last
#include "google/protobuf/port_def.inc"

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

// CodeGenerator implementation which generates a ObjectiveC source file and
// header.  If you create your own protocol compiler binary and you want it to
// support ObjectiveC output, you can do so by registering an instance of this
// CodeGenerator with the CommandLineInterface in your main() function.
class PROTOC_EXPORT ObjectiveCGenerator : public CodeGenerator {
 public:
  ObjectiveCGenerator() = default;
  ~ObjectiveCGenerator() override = default;

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

  // implements CodeGenerator ----------------------------------------
  bool HasGenerateAll() const override;
  bool Generate(const FileDescriptor* file, const std::string& parameter,
                GeneratorContext* context, std::string* error) const override;
  bool GenerateAll(const std::vector<const FileDescriptor*>& files,
                   const std::string& parameter, GeneratorContext* context,
                   std::string* error) const override;

  uint64_t GetSupportedFeatures() const override {
    return FEATURE_PROTO3_OPTIONAL;
  }
};

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

#include "google/protobuf/port_undef.inc"

#endif  // GOOGLE_PROTOBUF_COMPILER_OBJECTIVEC_GENERATOR_H__