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bpo-42972: Fully support GC for pyexpat, unicodedata, and dbm/gdbm heap types (GH-26376)

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* bpo-42972: pyexpat
* bpo-42972: unicodedata
* bpo-42972: dbm/gdbm
This commit is contained in:
Erlend Egeberg Aasland 2021-05-27 09:29:00 +02:00 • committed by GitHub
parent fbff5387c3
commit 59af59c2df
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 69 additions and 35 deletions
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17
Modules/unicodedata.c
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@ -102,12 +102,13 @@ new_previous_version(PyTypeObject *ucd_type,
Py_UCS4 (*normalization)(Py_UCS4))
{
PreviousDBVersion *self;
self = PyObject_New(PreviousDBVersion, ucd_type);
self = PyObject_GC_New(PreviousDBVersion, ucd_type);
if (self == NULL)
return NULL;
self->name = name;
self->getrecord = getrecord;
self->normalization = normalization;
PyObject_GC_Track(self);
return (PyObject*)self;
}
@ -1435,16 +1436,25 @@ static PyMethodDef unicodedata_functions[] = {
{NULL, NULL} /* sentinel */
};
static int
ucd_traverse(PreviousDBVersion *self, visitproc visit, void *arg)
{
Py_VISIT(Py_TYPE(self));
return 0;
}
static void
ucd_dealloc(PreviousDBVersion *self)
{
PyTypeObject *tp = Py_TYPE(self);
PyObject_Free(self);
PyObject_GC_UnTrack(self);
PyObject_GC_Del(self);
Py_DECREF(tp);
}
static PyType_Slot ucd_type_slots[] = {
{Py_tp_dealloc, ucd_dealloc},
{Py_tp_traverse, ucd_traverse},
{Py_tp_getattro, PyObject_GenericGetAttr},
{Py_tp_methods, unicodedata_functions},
{Py_tp_members, DB_members},
@ -1454,7 +1464,8 @@ static PyType_Slot ucd_type_slots[] = {
static PyType_Spec ucd_type_spec = {
.name = "unicodedata.UCD",
.basicsize = sizeof(PreviousDBVersion),
.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION,
.flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION |
Py_TPFLAGS_HAVE_GC),
.slots = ucd_type_slots
};