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bpo-42972: Fully implement GC protocol for sqlite3 heap types (GH-26104)

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(cherry picked from commit d3c277a59c)

Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@innova.no>
This commit is contained in:
Miss Islington (bot) 2021-05-25 11:08:39 -07:00 • committed by GitHub
parent 05f8ad0c74
commit e8d9df0089
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GPG key ID: 4AEE18F83AFDEB23
6 changed files with 192 additions and 74 deletions
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29
Modules/_sqlite/row.c
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@ -31,14 +31,29 @@ class _sqlite3.Row "pysqlite_Row *" "pysqlite_RowType"
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=384227da65f250fd]*/
static int
row_clear(pysqlite_Row *self)
{
Py_CLEAR(self->data);
Py_CLEAR(self->description);
return 0;
}
static int
row_traverse(pysqlite_Row *self, visitproc visit, void *arg)
{
Py_VISIT(self->data);
Py_VISIT(self->description);
Py_VISIT(Py_TYPE(self));
return 0;
}
static void
pysqlite_row_dealloc(pysqlite_Row *self)
pysqlite_row_dealloc(PyObject *self)
{
PyTypeObject *tp = Py_TYPE(self);
Py_XDECREF(self->data);
Py_XDECREF(self->description);
PyObject_GC_UnTrack(self);
tp->tp_clear(self);
tp->tp_free(self);
Py_DECREF(tp);
}
@ -231,13 +246,15 @@ static PyType_Slot row_slots[] = {
{Py_sq_length, pysqlite_row_length},
{Py_sq_item, pysqlite_row_item},
{Py_tp_new, pysqlite_row_new},
{Py_tp_traverse, row_traverse},
{Py_tp_clear, row_clear},
{0, NULL},
};
static PyType_Spec row_spec = {
.name = MODULE_NAME ".Row",
.basicsize = sizeof(pysqlite_Row),
.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC,
.slots = row_slots,
};