8000 bpo-41861: Convert _sqlite3 CursorType and ConnectionType to heap types by erlend-aasland · Pull Request #22478 · python/cpython · GitHub
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bpo-41861: Convert _sqlite3 CursorType and ConnectionType to heap types #22478

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Merged
merged 2 commits into from
Oct 1, 2020
Merged

bpo-41861: Convert _sqlite3 CursorType and ConnectionType to heap types #22478

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5be6718
Convert CursorType to head type
Sep 25, 2020
77636df
Convert ConnectionType to heap type
Sep 8, 2020
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Convert CursorType to head type
  • Loading branch information
Erlend E. Aasland committed Oct 1, 2020
commit 5be67185edba93c3a63f610d8b29d6e27a2916ad
4 changes: 2 additions & 2 deletions Modules/_sqlite/connection.c
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Expand Up @@ -281,13 +281,13 @@ PyObject* pysqlite_connection_cursor(pysqlite_Connection* self, PyObject* args,
}

if (factory == NULL) {
factory = (PyObject*)&pysqlite_CursorType;
factory = (PyObject*)pysqlite_CursorType;
}

cursor = PyObject_CallOneArg(factory, (PyObject *)self);
if (cursor == NULL)
return NULL;
if (!PyObject_TypeCheck(cursor, &pysqlite_CursorType)) {
if (!PyObject_TypeCheck(cursor, pysqlite_CursorType)) {
PyErr_Format(PyExc_TypeError,
"factory must return a cursor, not %.100s",
Py_TYPE(cursor)->tp_name);
Expand Down
74 changes: 30 additions & 44 deletions Modules/_sqlite/cursor.c
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Expand Up @@ -74,6 +74,8 @@ static int pysqlite_cursor_init(pysqlite_Cursor* self, PyObject* args, PyObject*

static void pysqlite_cursor_dealloc(pysqlite_Cursor* self)
{
PyTypeObject *tp = Py_TYPE(self);

/* Reset the statement if the user has not closed the cursor */
if (self->statement) {
pysqlite_statement_reset(self->statement);
Expand All @@ -91,7 +93,8 @@ static void pysqlite_cursor_dealloc(pysqlite_Cursor* self)
PyObject_ClearWeakRefs((PyObject*)self);
}

Py_TYPE(self)->tp_free((PyObject*)self);
tp->tp_free(self);
Py_DECREF(tp);
}

static PyObject *
Expand Down Expand Up @@ -898,56 +901,39 @@ static struct PyMemberDef cursor_members[] =
{"lastrowid", T_OBJECT, offsetof(pysqlite_Cursor, lastrowid), READONLY},
{"rowcount", T_LONG, offsetof(pysqlite_Cursor, rowcount), READONLY},
{"row_factory", T_OBJECT, offsetof(pysqlite_Cursor, row_factory), 0},
{"__weaklistoffset__", T_PYSSIZET, offsetof(pysqlite_Cursor, in_weakreflist), READONLY},
{NULL}
};

static const char cursor_doc[] =
PyDoc_STR("SQLite database cursor class.");

PyTypeObject pysqlite_CursorType = {
PyVarObject_HEAD_INIT(NULL, 0)
MODULE_NAME ".Cursor", /* tp_name */
sizeof(pysqlite_Cursor), /* tp_basicsize */
0, /* tp_itemsize */
(destructor)pysqlite_cursor_dealloc, /* tp_dealloc */
0, /* tp_vectorcall_offset */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_as_async */
0, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_hash */
0, /* tp_call */
0, /* tp_str */
0, /* tp_getattro */
0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, /* tp_flags */
cursor_doc, /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
offsetof(pysqlite_Cursor, in_weakreflist), /* tp_weaklistoffset */
PyObject_SelfIter, /* tp_iter */
(iternextfunc)pysqlite_cursor_iternext, /* tp_iternext */
cursor_methods, /* tp_methods */
cursor_members, /* tp_members */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
(initproc)pysqlite_cursor_init, /* tp_init */
0, /* tp_alloc */
0, /* tp_new */
0 /* tp_free */
static PyType 8000 _Slot cursor_slots[] = {
{Py_tp_dealloc, pysqlite_cursor_dealloc},
{Py_tp_doc, (void *)cursor_doc},
{Py_tp_iter, PyObject_SelfIter},
{Py_tp_iternext, pysqlite_cursor_iternext},
{Py_tp_methods, cursor_methods},
{Py_tp_members, cursor_members},
{Py_tp_new, PyType_GenericNew},
{Py_tp_init, pysqlite_cursor_init},
{0, NULL},
};

static PyType_Spec cursor_spec = {
.name = MODULE_NAME ".Cursor",
.basicsize = sizeof(pysqlite_Cursor),
.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
.slots = cursor_slots,
};

extern int pysqlite_cursor_setup_types(void)
PyTypeObject *pysqlite_CursorType = NULL;

extern int pysqlite_cursor_setup_types(PyObject *module)
{
pysqlite_CursorType.tp_new = PyType_GenericNew;
return PyType_Ready(&pysqlite_CursorType);
pysqlite_CursorType = (PyTypeObject *)PyType_FromModuleAndSpec(module, &cursor_spec, NULL);
if (pysqlite_CursorType == NULL) {
return -1;
}
return 0;
}
4 changes: 2 additions & 2 deletions Modules/_sqlite/cursor.h
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Expand Up @@ -52,7 +52,7 @@ typedef struct
PyObject* in_weakreflist; /* List of weak references */
} pysqlite_Cursor;

extern PyTypeObject pysqlite_CursorType;
extern PyTypeObject *pysqlite_CursorType;

PyObject* pysqlite_cursor_execute(pysqlite_Cursor* self, PyObject* args);
PyObject* pysqlite_cursor_executemany(pysqlite_Cursor* self, PyObject* args);
Expand All @@ -64,7 +64,7 @@ PyObject* pysqlite_cursor_fetchall(pysqlite_Cursor* self, PyObject* args);
PyObject* pysqlite_noop(pysqlite_Connection* self, PyObject* args);
PyObject* pysqlite_cursor_close(pysqlite_Cursor* self, PyObject* args);

int pysqlite_cursor_setup_types(void);
int pysqlite_cursor_setup_types(PyObject *module);

#define UNKNOWN (-1)
#endif
4 changes: 2 additions & 2 deletions Modules/_sqlite/module.c
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Expand Up @@ -353,7 +353,7 @@ PyMODINIT_FUNC PyInit__sqlite3(void)

if (!module ||
(pysqlite_row_setup_types(module) < 0) ||
(pysqlite_cursor_setup_types() < 0) ||
(pysqlite_cursor_setup_types(module) < 0) ||
(pysqlite_connection_setup_types() < 0) ||
(pysqlite_cache_setup_types(module) < 0) ||
(pysqlite_statement_setup_types(module) < 0) ||
Expand All @@ -364,7 +364,7 @@ PyMODINIT_FUNC PyInit__sqlite3(void)
}

ADD_TYPE(module, pysqlite_ConnectionType);
ADD_TYPE(module, pysqlite_CursorType);
ADD_TYPE(module, *pysqlite_CursorType);
ADD_TYPE(module, *pysqlite_PrepareProtocolType);
ADD_TYPE(module, *pysqlite_RowType);

Expand Down
2 changes: 1 addition & 1 deletion Modules/_sqlite/row.c
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Expand Up @@ -49,7 +49,7 @@ pysqlite_row_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
if (!PyArg_ParseTuple(args, "OO", &cursor, &data))
return NULL;

if (!PyObject_TypeCheck((PyObject*)cursor, &pysqlite_CursorType)) {
if (!PyObject_TypeCheck((PyObject*)cursor, pysqlite_CursorType)) {
PyErr_SetString(PyExc_TypeError, "instance of cursor required for first argument");
return NULL;
}
Expand Down
0