cpp_message_layout_helper.h

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// Protocol Buffers - Google's data interchange format
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// Author: seongkim@google.com (Seong Beom Kim)
//  Based on original Protocol Buffers design by
//  Sanjay Ghemawat, Jeff Dean, and others.
 
#ifndef GOOGLE_PROTOBUF_COMPILER_CPP_MESSAGE_LAYOUT_HELPER_H__
#define GOOGLE_PROTOBUF_COMPILER_CPP_MESSAGE_LAYOUT_HELPER_H__
 
#include <google/protobuf/compiler/cpp/cpp_options.h>
#include <google/protobuf/descriptor.h>
 
namespace google {
namespace protobuf {
namespace compiler {
namespace cpp {
 
// Provides an abstract interface to optimize message layout
// by rearranging the fields of a message.
class MessageLayoutHelper {
 public:
  virtual ~MessageLayoutHelper() {}
 
  virtual void OptimizeLayout(std::vector<const FieldDescriptor*>* fields,
                              const Options& options) = 0;
};
 
}  // namespace cpp
}  // namespace compiler
}  // namespace protobuf
}  // namespace google
 
#endif  // GOOGLE_PROTOBUF_COMPILER_CPP_MESSAGE_LAYOUT_HELPER_H__