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63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
// (C) Copyright David Abrahams 2000. Permission to copy, use, modify, sell and
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// distribute this software is granted provided this copyright notice appears
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// in all copies. This software is provided "as is" without express or implied
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// warranty, and with no claim as to its suitability for any purpose.
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//
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// The author gratefully acknowleges the support of Dragon Systems, Inc., in
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// producing this work.
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#ifndef BASE_OBJECT_DWA051600_H_
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# define BASE_OBJECT_DWA051600_H_
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# include "pyconfig.h"
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# include "signatures.h" // really just for Type<>
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# include "wrap_python.h"
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# include <cstring>
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namespace py {
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// BaseObject - adds a constructor and non-virtual destructor to a
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// base Python type (e.g. PyObject, PyTypeObject).
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template <class PythonType>
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struct BaseObject : PythonType
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{
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typedef PythonType BasePythonType;
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// Initializes type and reference count. All other fields of BasePythonType are 0
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BaseObject(PyTypeObject* type_object);
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// Decrements reference count on the type
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~BaseObject();
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};
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// Easy typedefs for common usage
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typedef BaseObject<PyObject> PythonObject;
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typedef BaseObject<PyTypeObject> PythonType;
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//
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// Class template member function implementations
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//
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template <class PythonType>
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BaseObject<PythonType>::BaseObject(PyTypeObject* type_object)
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{
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BasePythonType* bp = this;
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#if !defined(_MSC_VER) || defined(__STLPORT)
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std::
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#endif
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memset(bp, 0, sizeof(BasePythonType));
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ob_refcnt = 1;
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ob_type = type_object;
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Py_INCREF(type_object);
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}
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template <class PythonType>
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inline BaseObject<PythonType>::~BaseObject()
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{
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Py_DECREF(ob_type);
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}
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}
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#endif // BASE_OBJECT_DWA051600_H_
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