// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
//
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//
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// in the documentation and/or other materials provided with the
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Author: petar@google.com (Petar Petrov)

#ifndef GOOGLE_PROTOBUF_PYTHON_CPP_DESCRIPTOR_H__
#define GOOGLE_PROTOBUF_PYTHON_CPP_DESCRIPTOR_H__

#include <Python.h>
#include <structmember.h>

#include <google/protobuf/descriptor.h>

#if PY_VERSION_HEX < 0x02050000 && !defined(PY_SSIZE_T_MIN)
typedef int Py_ssize_t;
#define PY_SSIZE_T_MAX INT_MAX
#define PY_SSIZE_T_MIN INT_MIN
#endif

namespace google {
namespace protobuf {
namespace python {

typedef struct CFieldDescriptor {
  PyObject_HEAD

  // The proto2 descriptor that this object represents.
  const google::protobuf::FieldDescriptor* descriptor;

  // Reference to the original field object in the Python DESCRIPTOR.
  PyObject* descriptor_field;
} CFieldDescriptor;

typedef struct {
  PyObject_HEAD

  const google::protobuf::DescriptorPool* pool;
} CDescriptorPool;

extern PyTypeObject CFieldDescriptor_Type;

extern PyTypeObject CDescriptorPool_Type;

namespace cdescriptor_pool {

// Looks up a field by name. Returns a CDescriptor corresponding to
// the field on success, or NULL on failure.
//
// Returns a new reference.
PyObject* FindFieldByName(CDescriptorPool* self, PyObject* name);

// Looks up an extension by name. Returns a CDescriptor corresponding
// to the field on success, or NULL on failure.
//
// Returns a new reference.
PyObject* FindExtensionByName(CDescriptorPool* self, PyObject* arg);

}  // namespace cdescriptor_pool

PyObject* Python_NewCDescriptorPool(PyObject* ignored, PyObject* args);
PyObject* Python_BuildFile(PyObject* ignored, PyObject* args);
bool InitDescriptor();
google::protobuf::DescriptorPool* GetDescriptorPool();

}  // namespace python
}  // namespace protobuf

}  // namespace google
#endif  // GOOGLE_PROTOBUF_PYTHON_CPP_DESCRIPTOR_H__