/*
* check whether arrays with datatype dtype might have object fields. This will
* only happen for structured dtypes (which may have hidden objects even if the
* HASOBJECT flag is false), object dtypes, or subarray dtypes whose base type
* is either of these.
*/
NPY_NO_EXPORT int
_may_have_objects(PyArray_Descr *dtype)
{
PyArray_Descr *base = dtype;
if (PyDataType_HASSUBARRAY(dtype)) {
base = dtype->subarray->base;
}
return (PyDataType_HASFIELDS(base) ||
PyDataType_FLAGCHK(base, NPY_ITEM_HASOBJECT) );
}
static void
array_dealloc(PyArrayObject *self) {
_array_dealloc_buffer_info(self);
if (self->weakreflist != NULL) {
PyObject_ClearWeakRefs((PyObject *)self);
}
if (self->base) {
/*
* UPDATEIFCOPY means that base points to an
* array that should be updated with the contents
* of this array upon destruction.
* self->base->flags must have been WRITEABLE
* (checked previously) and it was locked here
* thus, unlock it.
*/
if (self->flags & UPDATEIFCOPY) {
((PyArrayObject *)self->base)->flags |= WRITEABLE;
Py_INCREF(self); /* hold on to self in next call */
if (PyArray_CopyAnyInto((PyArrayObject *)self->base, self) < 0) {
PyErr_Print();
PyErr_Clear();
}
/*
* Don't need to DECREF -- because we are deleting
*self already...
*/
}
/*
* In any case base is pointing to something that we need
* to DECREF -- either a view or a buffer object
*/
Py_DECREF(self->base);
}
if ((self->flags & OWNDATA) && self->data) {
/* Free internal references if an Object array */
if (PyDataType_FLAGCHK(self->descr, NPY_ITEM_REFCOUNT)) {
Py_INCREF(self); /*hold on to self */
PyArray_XDECREF(self);
/*
* Don't need to DECREF -- because we are deleting
* self already...
*/
}
PyDataMem_FREE(self->data);
}
PyDimMem_FREE(self->dimensions);
Py_DECREF(self->descr);
Py_TYPE(self)->tp_free((PyObject *)self);
}