Differential D16083 Diff 56395 source/blender/python/mathutils/mathutils.c

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source/blender/python/mathutils/mathutils.c

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	}			}

	int BaseMathObject_clear(BaseMathObject *self)			int BaseMathObject_clear(BaseMathObject *self)
	{			{
	Py_CLEAR(self->cb_user);			Py_CLEAR(self->cb_user);
	return 0;			return 0;
	}			}

				/** Only to validate assumptions when debugging. */
				#ifndef NDEBUG
				static bool BaseMathObject_is_tracked(BaseMathObject *self)
				{
				PyObject *cb_user = self->cb_user;
				self->cb_user = (void *)(uintptr_t)-1;
				bool is_tracked = PyObject_GC_IsTracked((PyObject *)self);
				self->cb_user = cb_user;
				return is_tracked;
				}
				#endif /* NDEBUG */

	void BaseMathObject_dealloc(BaseMathObject *self)			void BaseMathObject_dealloc(BaseMathObject *self)
	{			{
	/* only free non wrapped */			/* only free non wrapped */
	if ((self->flag & BASE_MATH_FLAG_IS_WRAP) == 0) {			if ((self->flag & BASE_MATH_FLAG_IS_WRAP) == 0) {
	PyMem_Free(self->data);			PyMem_Free(self->data);
	}			}

	if (self->cb_user) {			if (self->cb_user) {
				BLI_assert(BaseMathObject_is_tracked(self) == true);
	PyObject_GC_UnTrack(self);			PyObject_GC_UnTrack(self);
	BaseMathObject_clear(self);			BaseMathObject_clear(self);
	}			}
				else if (!BaseMathObject_CheckExact(self)) {
				/* Sub-classed types get an extra track (in Pythons internal `subtype_dealloc` function). */
				BLI_assert(BaseMathObject_is_tracked(self) == true);
				PyObject_GC_UnTrack(self);
				BLI_assert(BaseMathObject_is_tracked(self) == false);
				}

	Py_TYPE(self)->tp_free(self); // PyObject_DEL(self); /* breaks sub-types. */			Py_TYPE(self)->tp_free(self); // PyObject_DEL(self); /* breaks sub-types. */
	}			}

				int BaseMathObject_is_gc(BaseMathObject *self)
				{
				return self->cb_user != NULL;
				}

				PyObject _BaseMathObject_new_impl(PyTypeObject root_type, PyTypeObject *base_type)
				{
				PyObject *obj;
				if (ELEM(base_type, NULL, root_type)) {
				obj = _PyObject_GC_New(root_type);
				if (obj) {
				BLI_assert(BaseMathObject_is_tracked((BaseMathObject *)obj) == false);
				}
				}
				else {
				/* Calls Generic allocation function which always tracks
				* (because `root_type` is flagged for GC). */
				obj = base_type->tp_alloc(base_type, 0);
				if (obj) {
				BLI_assert(BaseMathObject_is_tracked((BaseMathObject *)obj) == true);
				PyObject_GC_UnTrack(obj);
				BLI_assert(BaseMathObject_is_tracked((BaseMathObject *)obj) == false);
				}
				}

				return obj;
				}

	/----------------------------MODULE INIT-------------------------/			/----------------------------MODULE INIT-------------------------/
	static struct PyMethodDef M_Mathutils_methods[] = {			static struct PyMethodDef M_Mathutils_methods[] = {
	{NULL, NULL, 0, NULL},			{NULL, NULL, 0, NULL},
	};			};

	static struct PyModuleDef M_Mathutils_module_def = {			static struct PyModuleDef M_Mathutils_module_def = {
	PyModuleDef_HEAD_INIT,			PyModuleDef_HEAD_INIT,
	"mathutils", /* m_name */			"mathutils", /* m_name */
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