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/*
* This file is part of the Shiboken Python Bindings Generator project.
*
* Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
*
* Contact: PySide team <contact@pyside.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef SBK_CONVERTER_P_H
#define SBK_CONVERTER_P_H
#include <Python.h>
#include <list>
#include "sbkconverter.h"
extern "C"
{
typedef std::pair<IsConvertibleToCppFunc, PythonToCppFunc> ToCppConversion;
typedef std::list<ToCppConversion> ToCppConversionList;
/**
* \internal
* Private structure of SbkConverter.
*/
struct SbkConverter
{
/**
* TODO: it certainly will be empty in some cases, like with PyDate.
* TODO: probably a setPythonType(SbkConverter*, PyTypeObject*) function will be required.
* Python type associated with this converter. If the type is a Shiboken
* wrapper, then it must be a SbkObjectType; otherwise it will be the
* Python type to which the C++ value will be converted (note that the
* C++ type could be produced from various Python types).
*/
PyTypeObject* pythonType;
/**
* This function converts a C++ object to a Python object of the type
* indicated in pythonType. The identity of the C++ object is kept,
* because it looks for an already existing Python wrapper associated
* with the C++ instance.
* It is used to convert C++ pointers and references to Python objects.
*/
CppToPythonFunc pointerToPython;
/**
* This function converts a C++ object to a Python object of the type
* indicated in pythonType. The identity of the is not kept, because a
* new instance of the C++ object is created.
* It is used to convert objects passed by value, or reference, if said
* reference can't be traced to an object that already has a Python
* wrapper assigned for it.
*/
CppToPythonFunc copyToPython;
/**
* This is a special case of a Python to C++ conversion. It returns
* the underlying C++ pointer of a Python wrapper passed as parameter
* or NULL if the Python object is a None value.
* It comes separated from the other toCppConversions because if you
* have a Python object representing a Value Type the type checking
* for both ValueType and ValueType* would be the same, thus the first
* check would be true and the second would never be reached.
*/
ToCppConversion toCppPointerConversion;
/**
* This is a list of type checking functions that return the
* proper Python to C++ conversion function, for the given Python
* object.
* For Object Types, that never have implicit conversions, this
* list is always empty.
*/
ToCppConversionList toCppConversions;
};
} // extern "C"
#endif // SBK_CONVERTER_P_H
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