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

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Merged
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 PyModule_AddObjectRef and PyTuple_Pack
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@encukou
encukou committed Nov 10, 2020
commit 09802b2eac1813af6b043e128e40724445809bbc
33 changes: 8 additions & 25 deletions Modules/_csv.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1654,34 +1654,22 @@ csv_exec(PyObject *module) {
_csvstate *m_state = get_csv_state(module);

temp = PyType_FromModuleAndSpec(module, &Dialect_Type_spec, NULL);
if (temp == NULL) {
return -1;
}
if (PyModule_AddObject(module, "Dialect", temp)) {
m_state->dialect_type = (PyTypeObject *)temp;
if (PyModule_AddObjectRef(module, "Dialect", temp) < 0) {
return -1;
}
Py_INCREF(temp);
m_state->dialect_type = (PyTypeObject *)temp;

temp = PyType_FromModuleAndSpec(module, &Reader_Type_spec, NULL);
if (temp == NULL) {
return -1;
}
if (PyModule_AddObject(module, "Reader", temp)) {
m_state->reader_type = (PyTypeObject *)temp;
if (PyModule_AddObjectRef(module, "Reader", temp) < 0) {
return -1;
}
Py_INCREF(temp);
m_state->reader_type = (PyTypeObject *)temp;

temp = PyType_FromModuleAndSpec(module, &Writer_Type_spec, NULL);
if (temp == NULL) {
return -1;
}
if (PyModule_AddObject(module, "Writer", temp)) {
m_state->writer_type = (PyTypeObject *)temp;
if (PyModule_AddObjectRef(module, "Writer", temp) < 0) {
return -1;
}
Py_INCREF(temp);
m_state->writer_type = (PyTypeObject *)temp;

/* Add version to the module. */
if (PyModule_AddStringConstant(module, "__version__",
Expand All @@ -1694,11 +1682,7 @@ csv_exec(PyObject *module) {

/* Add _dialects dictionary */
m_state->dialects = PyDict_New();
if (m_state->dialects == NULL) {
return -1;
}
Py_INCREF(m_state->dialects);
if (PyModule_AddObject(module, "_dialects", m_state->dialects)) {
if (PyModule_AddObjectRef(module, "_dialects", m_state->dialects) < 0) {
return -1;
}

Expand All @@ -1710,11 +1694,10 @@ csv_exec(PyObject *module) {
}

/* Add the CSV exception object to the module. */
PyObject *bases = PyTuple_New(1);
PyObject *bases = PyTuple_Pack(1, PyExc_Exception);
if (bases == NULL) {
return -1;
}
PyTuple_SET_ITEM(bases, 0, PyExc_Exception);
m_state->error_obj = PyType_FromModuleAndSpec(module, &error_spec, bases);
Py_DECREF(bases);
if (m_state->error_obj == NULL) {
Expand Down