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bpo-14935: Remove static state from the _csv module #23224

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Merged
encukou merged 12 commits into from
Dec 15, 2020
Merged

bpo-14935: Remove static state from the _csv module #23224

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a2a0e6f
Remove static state from the _csv module
encukou May 12, 2020
09802b2
Use PyModule_AddObjectRef and PyTuple_Pack
encukou Nov 10, 2020
1665ac7
Rename m_state to module_state
encukou Nov 13, 2020
23f844a
Use Py_CLEAR rather than Py_XDECREF
encukou Nov 13, 2020
8d1f95d
Use `module` rather than `m`
encukou Nov 13, 2020
2c60895
Factor out calling _PyType_GetModuleByDef & PyModule_GetState
encukou Nov 13, 2020
e69d0a1
Set freed pointers to NULL
encukou Nov 13, 2020
fb93e7f
Only call get_csv_state up to once per function
encukou Nov 13, 2020
b62987b
Pass module_state directly to _call_dialect
encukou Nov 13, 2020
f12a768
Add NULL check for _csv_state_from_type
encukou Dec 8, 2020
f302029
Use Py_NewRef where appropriate
encukou Dec 8, 2020
b8c37bf
Use designated initializers for spec structs
encukou Dec 8, 2020
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Use module rather than m
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@encukou
encukou committed Nov 13, 2020
commit 8d1f95d2748099b771daa823d409990047da2029
28 changes: 14 additions & 14 deletions Modules/_csv.c
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Original file line number Diff line number Diff line change
Expand Up @@ -35,9 +35,9 @@ get_csv_state(PyObject *module)
}

static int
_csv_clear(PyObject *m)
_csv_clear(PyObject *module)
{
_csvstate *module_state = PyModule_GetState(m);
_csvstate *module_state = PyModule_GetState(module);
Py_CLEAR(module_state->error_obj);
Py_CLEAR(module_state->dialects);
Py_CLEAR(module_state->dialect_type);
Expand All @@ -47,9 +47,9 @@ _csv_clear(PyObject *m)
}

static int
_csv_traverse(PyObject *m, visitproc visit, void *arg)
_csv_traverse(PyObject *module, visitproc visit, void *arg)
{
_csvstate *module_state = PyModule_GetState(m);
_csvstate *module_state = PyModule_GetState(module);
Py_VISIT(module_state->error_obj);
Py_VISIT(module_state->dialects);
Py_VISIT(module_state->dialect_type);
Expand All @@ -59,9 +59,9 @@ _csv_traverse(PyObject *m, visitproc visit, void *arg)
}

static void
_csv_free(void *m)
_csv_free(void *module)
{
_csv_clear((PyObject *)m);
_csv_clear((PyObject *)module);
}

typedef enum {
Expand Down Expand Up @@ -368,11 +368,11 @@ dialect_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
&strict))
return NULL;

PyObject *m = _PyType_GetModuleByDef(type, &_csvmodule);
if (m == NULL) {
PyObject *module = _PyType_GetModuleByDef(type, &_csvmodule);
if (module == NULL) {
return NULL;
}
_csvstate *module_state = PyModule_GetState(m);
_csvstate *module_state = PyModule_GetState(module);
if (module_state == NULL) {
return PyErr_Format(PyExc_SystemError,
"dialect_new: No _csv module state found");
Expand Down Expand Up @@ -527,9 +527,9 @@ PyType_Spec Dialect_Type_spec = {
* description of the dialect
*/
static PyObject *
_call_dialect(PyObject *m, PyObject *dialect_inst, PyObject *kwargs)
_call_dialect(PyObject *module, PyObject *dialect_inst, PyObject *kwargs)
{
_csvstate *module_state = PyModule_GetState(m);
_csvstate *module_state = PyModule_GetState(module);
if (module_state == NULL) {
return NULL;
}
Expand Down Expand Up @@ -810,11 +810,11 @@ Reader_iternext(ReaderObj *self)
const void *data;
PyObject *lineobj;

PyObject *m = _PyType_GetModuleByDef(Py_TYPE(self), &_csvmodule);
if (m == NULL) {
PyObject *module = _PyType_GetModuleByDef(Py_TYPE(self), &_csvmodule);
if (module == NULL) {
return NULL;
}
_csvstate *module_state = PyModule_GetState(m);
_csvstate *module_state = PyModule_GetState(module);
if (module_state == NULL) {
return PyErr_Format(PyExc_SystemError,
"dialect_new: No _csv module state found");
Expand Down