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gh-99537: Use Py_SETREF(var, NULL) in C code (#99687)

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Replace "Py_DECREF(var); var = NULL;" with "Py_SETREF(var, NULL);".
This commit is contained in:
Victor Stinner 2022-11-23 14:57:50 +01:00 • committed by GitHub
parent 5d9183c7ad
commit 81f7359f67
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GPG key ID: 4AEE18F83AFDEB23
22 changed files with 44 additions and 87 deletions
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9
Objects/abstract.c
View file

@ -806,8 +806,7 @@ PyObject_Format(PyObject *obj, PyObject *format_spec)
PyErr_Format(PyExc_TypeError,
"__format__ must return a str, not %.200s",
Py_TYPE(result)->tp_name);
Py_DECREF(result);
result = NULL;
Py_SETREF(result, NULL);
goto done;
}
@ -2791,8 +2790,7 @@ PyObject_GetIter(PyObject *o)
"iter() returned non-iterator "
"of type '%.100s'",
Py_TYPE(res)->tp_name);
Py_DECREF(res);
res = NULL;
Py_SETREF(res, NULL);
}
return res;
}
@ -2812,8 +2810,7 @@ PyObject_GetAIter(PyObject *o) {
PyErr_Format(PyExc_TypeError,
"aiter() returned not an async iterator of type '%.100s'",
Py_TYPE(it)->tp_name);
Py_DECREF(it);
it = NULL;
Py_SETREF(it, NULL);
}
return it;
}

6
Objects/classobject.c
View file

@ -283,8 +283,7 @@ method_repr(PyMethodObject *a)
}
if (funcname != NULL && !PyUnicode_Check(funcname)) {
Py_DECREF(funcname);
funcname = NULL;
Py_SETREF(funcname, NULL);
}
/* XXX Shouldn't use repr()/%R here! */
@ -484,8 +483,7 @@ instancemethod_repr(PyObject *self)
return NULL;
}
if (funcname != NULL && !PyUnicode_Check(funcname)) {
Py_DECREF(funcname);
funcname = NULL;
Py_SETREF(funcname, NULL);
}
result = PyUnicode_FromFormat("<instancemethod %V at %p>",

3
Objects/descrobject.c
View file

@ -906,8 +906,7 @@ descr_new(PyTypeObject *descrtype, PyTypeObject *type, const char *name)
descr->d_type = (PyTypeObject*)Py_XNewRef(type);
descr->d_name = PyUnicode_InternFromString(name);
if (descr->d_name == NULL) {
Py_DECREF(descr);
descr = NULL;
Py_SETREF(descr, NULL);
}
else {
descr->d_qualname = NULL;

9
Objects/fileobject.c
View file

@ -67,8 +67,7 @@ PyFile_GetLine(PyObject *f, int n)
}
if (result != NULL && !PyBytes_Check(result) &&
!PyUnicode_Check(result)) {
Py_DECREF(result);
result = NULL;
Py_SETREF(result, NULL);
PyErr_SetString(PyExc_TypeError,
"object.readline() returned non-string");
}
@ -77,8 +76,7 @@ PyFile_GetLine(PyObject *f, int n)
const char *s = PyBytes_AS_STRING(result);
Py_ssize_t len = PyBytes_GET_SIZE(result);
if (len == 0) {
Py_DECREF(result);
result = NULL;
Py_SETREF(result, NULL);
PyErr_SetString(PyExc_EOFError,
"EOF when reading a line");
}
@ -95,8 +93,7 @@ PyFile_GetLine(PyObject *f, int n)
if (n < 0 && result != NULL && PyUnicode_Check(result)) {
Py_ssize_t len = PyUnicode_GET_LENGTH(result);
if (len == 0) {
Py_DECREF(result);
result = NULL;
Py_SETREF(result, NULL);
PyErr_SetString(PyExc_EOFError,
"EOF when reading a line");
}

12
Objects/typeobject.c
View file

@ -1213,8 +1213,7 @@ type_repr(PyTypeObject *type)
if (mod == NULL)
PyErr_Clear();
else if (!PyUnicode_Check(mod)) {
Py_DECREF(mod);
mod = NULL;
Py_SETREF(mod, NULL);
}
name = type_qualname(type, NULL);
if (name == NULL) {
@ -1288,8 +1287,7 @@ type_call(PyTypeObject *type, PyObject *args, PyObject *kwds)
int res = type->tp_init(obj, args, kwds);
if (res < 0) {
assert(_PyErr_Occurred(tstate));
Py_DECREF(obj);
obj = NULL;
Py_SETREF(obj, NULL);
}
else {
assert(!_PyErr_Occurred(tstate));
@ -5007,8 +5005,7 @@ object_repr(PyObject *self)
if (mod == NULL)
PyErr_Clear();
else if (!PyUnicode_Check(mod)) {
Py_DECREF(mod);
mod = NULL;
Py_SETREF(mod, NULL);
}
name = type_qualname(type, NULL);
if (name == NULL) {
@ -8107,8 +8104,7 @@ slot_tp_hash(PyObject *self)
func = lookup_maybe_method(self, &_Py_ID(__hash__), &unbound);
if (func == Py_None) {
Py_DECREF(func);
func = NULL;
Py_SETREF(func, NULL);
}
if (func == NULL) {