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author
Erlend Egeberg Aasland
authored
bpo-41861: Convert _sqlite3 PrepareProtocolType to heap type (GH-22428)
1 parent d332e7b commit cb6db8b

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5 files changed

+33
-54
lines changed

5 files changed

+33
-54
lines changed

‎Modules/_sqlite/microprotocols.c‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -56,7 +56,7 @@ pysqlite_microprotocols_add(PyTypeObject *type, PyObject *proto, PyObject *cast)
5656
PyObject* key;
5757
int rc;
5858

59-
if (proto == NULL) proto = (PyObject*)&pysqlite_PrepareProtocolType;
59+
if (proto == NULL) proto = (PyObject*)pysqlite_PrepareProtocolType;
6060

6161
key = Py_BuildValue("(OO)", (PyObject*)type, proto);
6262
if (!key) {
@@ -152,7 +152,7 @@ PyObject *
152152
pysqlite_adapt(pysqlite_Cursor *self, PyObject *args)
153153
{
154154
PyObject *obj, *alt = NULL;
155-
PyObject *proto = (PyObject*)&pysqlite_PrepareProtocolType;
155+
PyObject *proto = (PyObject*)pysqlite_PrepareProtocolType;
156156

157157
if (!PyArg_ParseTuple(args, "O|OO", &obj, &proto, &alt)) return NULL;
158158
return pysqlite_microprotocols_adapt(obj, proto, alt);

‎Modules/_sqlite/module.c‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -176,7 +176,7 @@ static PyObject* module_register_adapter(PyObject* self, PyObject* args)
176176
pysqlite_BaseTypeAdapted = 1;
177177
}
178178

179-
rc = pysqlite_microprotocols_add(type, (PyObject*)&pysqlite_PrepareProtocolType, caster);
179+
rc = pysqlite_microprotocols_add(type, (PyObject*)pysqlite_PrepareProtocolType, caster);
180180
if (rc == -1)
181181
return NULL;
182182

@@ -357,15 +357,15 @@ PyMODINIT_FUNC PyInit__sqlite3(void)
357357
(pysqlite_connection_setup_types() < 0) ||
358358
(pysqlite_cache_setup_types(module) < 0) ||
359359
(pysqlite_statement_setup_types() < 0) ||
360-
(pysqlite_prepare_protocol_setup_types() < 0)
360+
(pysqlite_prepare_protocol_setup_types(module) < 0)
361361
) {
362362
Py_XDECREF(module);
363363
return NULL;
364364
}
365365

366366
ADD_TYPE(module, pysqlite_ConnectionType);
367367
ADD_TYPE(module, pysqlite_CursorType);
368-
ADD_TYPE(module, pysqlite_PrepareProtocolType);
368+
ADD_TYPE(module, *pysqlite_PrepareProtocolType);
369369
ADD_TYPE(module, pysqlite_RowType);
370370

371371
if (!(dict = PyModule_GetDict(module))) {

‎Modules/_sqlite/prepare_protocol.c‎

Lines changed: 24 additions & 45 deletions
Original file line numberDiff line numberDiff line change
@@ -30,54 +30,33 @@ int pysqlite_prepare_protocol_init(pysqlite_PrepareProtocol* self, PyObject* arg
3030

3131
void pysqlite_prepare_protocol_dealloc(pysqlite_PrepareProtocol* self)
3232
{
33-
Py_TYPE(self)->tp_free((PyObject*)self);
33+
PyTypeObject *tp = Py_TYPE(self);
34+
35+
tp->tp_free(self);
36+
Py_DECREF(tp);
3437
}
3538

36-
PyTypeObject pysqlite_PrepareProtocolType= {
37-
PyVarObject_HEAD_INIT(NULL, 0)
38-
MODULE_NAME ".PrepareProtocol", /* tp_name */
39-
sizeof(pysqlite_PrepareProtocol), /* tp_basicsize */
40-
0, /* tp_itemsize */
41-
(destructor)pysqlite_prepare_protocol_dealloc, /* tp_dealloc */
42-
0, /* tp_vectorcall_offset */
43-
0, /* tp_getattr */
44-
0, /* tp_setattr */
45-
0, /* tp_as_async */
46-
0, /* tp_repr */
47-
0, /* tp_as_number */
48-
0, /* tp_as_sequence */
49-
0, /* tp_as_mapping */
50-
0, /* tp_hash */
51-
0, /* tp_call */
52-
0, /* tp_str */
53-
0, /* tp_getattro */
54-
0, /* tp_setattro */
55-
0, /* tp_as_buffer */
56-
Py_TPFLAGS_DEFAULT, /* tp_flags */
57-
0, /* tp_doc */
58-
0, /* tp_traverse */
59-
0, /* tp_clear */
60-
0, /* tp_richcompare */
61-
0, /* tp_weaklistoffset */
62-
0, /* tp_iter */
63-
0, /* tp_iternext */
64-
0, /* tp_methods */
65-
0, /* tp_members */
66-
0, /* tp_getset */
67-
0, /* tp_base */
68-
0, /* tp_dict */
69-
0, /* tp_descr_get */
70-
0, /* tp_descr_set */
71-
0, /* tp_dictoffset */
72-
(initproc)pysqlite_prepare_protocol_init, /* tp_init */
73-
0, /* tp_alloc */
74-
0, /* tp_new */
75-
0 /* tp_free */
39+
static PyType_Slot type_slots[] = {
40+
{Py_tp_dealloc, pysqlite_prepare_protocol_dealloc},
41+
{Py_tp_new, PyType_GenericNew},
42+
{Py_tp_init, pysqlite_prepare_protocol_init},
43+
{0, NULL},
44+
};
45+
46+
static PyType_Spec type_spec = {
47+
.name = MODULE_NAME ".PrepareProtocol",
48+
.basicsize = sizeof(pysqlite_PrepareProtocol),
49+
.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HEAPTYPE,
50+
.slots = type_slots,
7651
};
7752

78-
extern int pysqlite_prepare_protocol_setup_types(void)
53+
PyTypeObject *pysqlite_PrepareProtocolType = NULL;
54+
55+
extern int pysqlite_prepare_protocol_setup_types(PyObject *module)
7956
{
80-
pysqlite_PrepareProtocolType.tp_new = PyType_GenericNew;
81-
Py_SET_TYPE(&pysqlite_PrepareProtocolType, &PyType_Type);
82-
return PyType_Ready(&pysqlite_PrepareProtocolType);
57+
pysqlite_PrepareProtocolType = (PyTypeObject *)PyType_FromModuleAndSpec(module, &type_spec, NULL);
58+
if (pysqlite_PrepareProtocolType == NULL) {
59+
return -1;
60+
}
61+
return 0;
8362
}

‎Modules/_sqlite/prepare_protocol.h‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -31,12 +31,12 @@ typedef struct
3131
PyObject_HEAD
3232
} pysqlite_PrepareProtocol;
3333

34-
extern PyTypeObject pysqlite_PrepareProtocolType;
34+
extern PyTypeObject *pysqlite_PrepareProtocolType;
3535

3636
int pysqlite_prepare_protocol_init(pysqlite_PrepareProtocol* self, PyObject* args, PyObject* kwargs);
3737
void pysqlite_prepare_protocol_dealloc(pysqlite_PrepareProtocol* self);
3838

39-
int pysqlite_prepare_protocol_setup_types(void);
39+
int pysqlite_prepare_protocol_setup_types(PyObject *module);
4040

4141
#define UNKNOWN (-1)
4242
#endif

‎Modules/_sqlite/statement.c‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -255,7 +255,7 @@ void pysqlite_statement_bind_parameters(pysqlite_Statement* self, PyObject* para
255255
if (!_need_adapt(current_param)) {
256256
adapted = current_param;
257257
} else {
258-
adapted = pysqlite_microprotocols_adapt(current_param, (PyObject*)&pysqlite_PrepareProtocolType, current_param);
258+
adapted = pysqlite_microprotocols_adapt(current_param, (PyObject*)pysqlite_PrepareProtocolType, current_param);
259259
Py_DECREF(current_param);
260260
if (!adapted) {
261261
return;
@@ -306,7 +306,7 @@ void pysqlite_statement_bind_parameters(pysqlite_Statement* self, PyObject* para
306306
if (!_need_adapt(current_param)) {
307307
adapted = current_param;
308308
} else {
309-
adapted = pysqlite_microprotocols_adapt(current_param, (PyObject*)&pysqlite_PrepareProtocolType, current_param);
309+
adapted = pysqlite_microprotocols_adapt(current_param, (PyObject*)pysqlite_PrepareProtocolType, current_param);
310310
Py_DECREF(current_param);
311311
if (!adapted) {
312312
return;

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