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// Protocol Buffers - Google's data interchange format
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// Author: anuraag@google.com (Anuraag Agrawal)
// Author: tibell@google.com (Johan Tibell)

#ifndef GOOGLE_PROTOBUF_PYTHON_CPP_EXTENSION_DICT_H__
#define GOOGLE_PROTOBUF_PYTHON_CPP_EXTENSION_DICT_H__

#include <Python.h>

#include <memory>

#include <google/protobuf/pyext/message.h>

namespace google {
namespace protobuf {

class Message;
class FieldDescriptor;

namespace python {

typedef struct ExtensionDict {
  PyObject_HEAD;

  // Strong, owned reference to the parent message. Never NULL.
  CMessage* parent;
} ExtensionDict;

extern PyTypeObject ExtensionDict_Type;
extern PyTypeObject ExtensionIterator_Type;

namespace extension_dict {

// Builds an Extensions dict for a specific message.
ExtensionDict* NewExtensionDict(CMessage *parent);

}  // namespace extension_dict
}  // namespace python
}  // namespace protobuf
}  // namespace google

#endif  // GOOGLE_PROTOBUF_PYTHON_CPP_EXTENSION_DICT_H__