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gh-99300: Use Py_NewRef() in Objects/ directory (#99332) 

Replace Py_INCREF() and Py_XINCREF() with Py_NewRef() and
Py_XNewRef() in C files of the Objects/ directory.
This commit is contained in:
Victor Stinner 2022-11-10 16:27:32 +01:00 committed by GitHub
parent 4ce2a202c7
commit c0feb99187
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 77 additions and 156 deletions
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22
Objects/abstract.c
View File

@ -45,8 +45,7 @@ PyObject_Type(PyObject *o)
}
v = (PyObject *)Py_TYPE(o);
Py_INCREF(v);
return v;
return Py_NewRef(v);
}
Py_ssize_t
@ -722,9 +721,7 @@ PyBuffer_FillInfo(Py_buffer *view, PyObject *obj, void *buf, Py_ssize_t len,
return -1;
}
view->obj = obj;
if (obj)
Py_INCREF(obj);
view->obj = Py_XNewRef(obj);
view->buf = buf;
view->len = len;
view->readonly = readonly;
@ -776,8 +773,7 @@ PyObject_Format(PyObject *obj, PyObject *format_spec)
/* Fast path for common types. */
if (format_spec == NULL || PyUnicode_GET_LENGTH(format_spec) == 0) {
if (PyUnicode_CheckExact(obj)) {
Py_INCREF(obj);
return obj;
return Py_NewRef(obj);
}
if (PyLong_CheckExact(obj)) {
return PyObject_Str(obj);
@ -1405,8 +1401,7 @@ _PyNumber_Index(PyObject *item)
}
if (PyLong_Check(item)) {
Py_INCREF(item);
return item;
return Py_NewRef(item);
}
if (!_PyIndex_Check(item)) {
PyErr_Format(PyExc_TypeError,
@ -1520,8 +1515,7 @@ PyNumber_Long(PyObject *o)
}
if (PyLong_CheckExact(o)) {
Py_INCREF(o);
return o;
return Py_NewRef(o);
}
m = Py_TYPE(o)->tp_as_number;
if (m && m->nb_int) { /* This should include subclasses of int */
@ -2045,8 +2039,7 @@ PySequence_Tuple(PyObject *v)
a tuple *subclass* instance as-is, hence the restriction
to exact tuples here. In contrast, lists always make
a copy, so there's no need for exactness below. */
Py_INCREF(v);
return v;
return Py_NewRef(v);
}
if (PyList_CheckExact(v))
return PyList_AsTuple(v);
@ -2144,8 +2137,7 @@ PySequence_Fast(PyObject *v, const char *m)
}
if (PyList_CheckExact(v) || PyTuple_CheckExact(v)) {
Py_INCREF(v);
return v;
return Py_NewRef(v);
}
it = PyObject_GetIter(v);

3
Objects/boolobject.c
View File

@ -23,8 +23,7 @@ PyObject *PyBool_FromLong(long ok)
result = Py_True;
else
result = Py_False;
Py_INCREF(result);
return result;
return Py_NewRef(result);
}
/* We define bool_new to always return either Py_True or Py_False */

51
Objects/bytesobject.c
View File

@ -53,8 +53,7 @@ static inline PyObject* bytes_get_empty(void)
// Return a strong reference to the empty bytes string singleton.
static inline PyObject* bytes_new_empty(void)
{
Py_INCREF(EMPTY);
return (PyObject *)EMPTY;
return Py_NewRef(EMPTY);
}
@ -126,8 +125,7 @@ PyBytes_FromStringAndSize(const char *str, Py_ssize_t size)
}
if (size == 1 && str != NULL) {
op = CHARACTER(*str & 255);
Py_INCREF(op);
return (PyObject *)op;
return Py_NewRef(op);
}
if (size == 0) {
return bytes_new_empty();
@ -162,8 +160,7 @@ PyBytes_FromString(const char *str)
}
else if (size == 1) {
op = CHARACTER(*str & 255);
Py_INCREF(op);
return (PyObject *)op;
return Py_NewRef(op);
}
/* Inline PyObject_NewVar */
@ -527,14 +524,12 @@ format_obj(PyObject *v, const char **pbuf, Py_ssize_t *plen)
if (PyBytes_Check(v)) {
*pbuf = PyBytes_AS_STRING(v);
*plen = PyBytes_GET_SIZE(v);
Py_INCREF(v);
return v;
return Py_NewRef(v);
}
if (PyByteArray_Check(v)) {
*pbuf = PyByteArray_AS_STRING(v);
*plen = PyByteArray_GET_SIZE(v);
Py_INCREF(v);
return v;
return Py_NewRef(v);
}
/* does it support __bytes__? */
func = _PyObject_LookupSpecial(v, &_Py_ID(__bytes__));
@ -1411,13 +1406,11 @@ bytes_concat(PyObject *a, PyObject *b)
/* Optimize end cases */
if (va.len == 0 && PyBytes_CheckExact(b)) {
result = b;
Py_INCREF(result);
result = Py_NewRef(b);
goto done;
}
if (vb.len == 0 && PyBytes_CheckExact(a)) {
result = a;
Py_INCREF(result);
result = Py_NewRef(a);
goto done;
}
@ -1458,8 +1451,7 @@ bytes_repeat(PyBytesObject *a, Py_ssize_t n)
}
size = Py_SIZE(a) * n;
if (size == Py_SIZE(a) && PyBytes_CheckExact(a)) {
Py_INCREF(a);
return (PyObject *)a;
return Py_NewRef(a);
}
nbytes = (size_t)size;
if (nbytes + PyBytesObject_SIZE <= nbytes) {
@ -1625,8 +1617,7 @@ bytes_subscript(PyBytesObject* self, PyObject* item)
else if (start == 0 && step == 1 &&
slicelength == PyBytes_GET_SIZE(self) &&
PyBytes_CheckExact(self)) {
Py_INCREF(self);
return (PyObject *)self;
return Py_NewRef(self);
}
else if (step == 1) {
return PyBytes_FromStringAndSize(
@ -1696,8 +1687,7 @@ bytes___bytes___impl(PyBytesObject *self)
/*[clinic end generated code: output=63a306a9bc0caac5 input=34ec5ddba98bd6bb]*/
{
if (PyBytes_CheckExact(self)) {
Py_INCREF(self);
return (PyObject *)self;
return Py_NewRef(self);
}
else {
return PyBytes_FromStringAndSize(self->ob_sval, Py_SIZE(self));
@ -1922,8 +1912,7 @@ do_xstrip(PyBytesObject *self, int striptype, PyObject *sepobj)
PyBuffer_Release(&vsep);
if (i == 0 && j == len && PyBytes_CheckExact(self)) {
Py_INCREF(self);
return (PyObject*)self;
return Py_NewRef(self);
}
else
return PyBytes_FromStringAndSize(s+i, j-i);
@ -1952,8 +1941,7 @@ do_strip(PyBytesObject *self, int striptype)
}
if (i == 0 && j == len && PyBytes_CheckExact(self)) {
Py_INCREF(self);
return (PyObject*)self;
return Py_NewRef(self);
}
else
return PyBytes_FromStringAndSize(s+i, j-i);
@ -2152,8 +2140,7 @@ bytes_translate_impl(PyBytesObject *self, PyObject *table,
}
if (!changed && PyBytes_CheckExact(input_obj)) {
Py_DECREF(result);
Py_INCREF(input_obj);
return input_obj;
return Py_NewRef(input_obj);
}
/* Fix the size of the resulting byte string */
if (inlen > 0)
@ -2245,8 +2232,7 @@ bytes_removeprefix_impl(PyBytesObject *self, Py_buffer *prefix)
}
if (PyBytes_CheckExact(self)) {
Py_INCREF(self);
return (PyObject *)self;
return Py_NewRef(self);
}
return PyBytes_FromStringAndSize(self_start, self_len);
@ -2284,8 +2270,7 @@ bytes_removesuffix_impl(PyBytesObject *self, Py_buffer *suffix)
}
if (PyBytes_CheckExact(self)) {
Py_INCREF(self);
return (PyObject *)self;
return Py_NewRef(self);
}
return PyBytes_FromStringAndSize(self_start, self_len);
@ -2844,8 +2829,7 @@ PyBytes_FromObject(PyObject *x)
}
if (PyBytes_CheckExact(x)) {
Py_INCREF(x);
return x;
return Py_NewRef(x);
}
/* Use the modern buffer interface */
@ -3269,8 +3253,7 @@ bytes_iter(PyObject *seq)
if (it == NULL)
return NULL;
it->it_index = 0;
Py_INCREF(seq);
it->it_seq = (PyBytesObject *)seq;
it->it_seq = (PyBytesObject *)Py_NewRef(seq);
_PyObject_GC_TRACK(it);
return (PyObject *)it;
}

9
Objects/call.c
View File

@ -1000,8 +1000,7 @@ _PyStack_UnpackDict(PyThreadState *tstate,
/* Copy positional arguments */
for (Py_ssize_t i = 0; i < nargs; i++) {
Py_INCREF(args[i]);
stack[i] = args[i];
stack[i] = Py_NewRef(args[i]);
}
PyObject **kwstack = stack + nargs;
@ -1013,10 +1012,8 @@ _PyStack_UnpackDict(PyThreadState *tstate,
unsigned long keys_are_strings = Py_TPFLAGS_UNICODE_SUBCLASS;
while (PyDict_Next(kwargs, &pos, &key, &value)) {
keys_are_strings &= Py_TYPE(key)->tp_flags;
Py_INCREF(key);
Py_INCREF(value);
PyTuple_SET_ITEM(kwnames, i, key);
kwstack[i] = value;
PyTuple_SET_ITEM(kwnames, i, Py_NewRef(key));
kwstack[i] = Py_NewRef(value);
i++;
}

12
Objects/cellobject.c
View File

@ -11,8 +11,7 @@ PyCell_New(PyObject *obj)
op = (PyCellObject *)PyObject_GC_New(PyCellObject, &PyCell_Type);
if (op == NULL)
return NULL;
op->ob_ref = obj;
Py_XINCREF(obj);
op->ob_ref = Py_XNewRef(obj);
_PyObject_GC_TRACK(op);
return (PyObject *)op;
@ -68,8 +67,7 @@ PyCell_Set(PyObject *op, PyObject *value)
return -1;
}
PyObject *old_value = PyCell_GET(op);
Py_XINCREF(value);
PyCell_SET(op, value);
PyCell_SET(op, Py_XNewRef(value));
Py_XDECREF(old_value);
return 0;
}
@ -135,15 +133,13 @@ cell_get_contents(PyCellObject *op, void *closure)
PyErr_SetString(PyExc_ValueError, "Cell is empty");
return NULL;
}
Py_INCREF(op->ob_ref);
return op->ob_ref;
return Py_NewRef(op->ob_ref);
}
static int
cell_set_contents(PyCellObject *op, PyObject *obj, void *Py_UNUSED(ignored))
{
Py_XINCREF(obj);
Py_XSETREF(op->ob_ref, obj);
Py_XSETREF(op->ob_ref, Py_XNewRef(obj));
return 0;
}

24
Objects/classobject.c
View File

@ -113,10 +113,8 @@ PyMethod_New(PyObject *func, PyObject *self)
return NULL;
}
im->im_weakreflist = NULL;
Py_INCREF(func);
im->im_func = func;
Py_INCREF(self);
im->im_self = self;
im->im_func = Py_NewRef(func);
im->im_self = Py_NewRef(self);
im->vectorcall = method_vectorcall;
_PyObject_GC_TRACK(im);
return (PyObject *)im;
@ -195,8 +193,7 @@ method_getattro(PyObject *obj, PyObject *name)
if (f != NULL)
return f(descr, obj, (PyObject *)Py_TYPE(obj));
else {
Py_INCREF(descr);
return descr;
return Py_NewRef(descr);
}
}
@ -267,8 +264,7 @@ method_richcompare(PyObject *self, PyObject *other, int op)
res = eq ? Py_True : Py_False;
else
res = eq ? Py_False : Py_True;
Py_INCREF(res);
return res;
return Py_NewRef(res);
}
static PyObject *
@ -359,8 +355,7 @@ PyInstanceMethod_New(PyObject *func) {
method = PyObject_GC_New(PyInstanceMethodObject,
&PyInstanceMethod_Type);
if (method == NULL) return NULL;
Py_INCREF(func);
method->func = func;
method->func = Py_NewRef(func);
_PyObject_GC_TRACK(method);
return (PyObject *)method;
}
@ -412,8 +407,7 @@ instancemethod_getattro(PyObject *self, PyObject *name)
if (f != NULL)
return f(descr, self, (PyObject *)Py_TYPE(self));
else {
Py_INCREF(descr);
return descr;
return Py_NewRef(descr);
}
}
@ -443,8 +437,7 @@ static PyObject *
instancemethod_descr_get(PyObject *descr, PyObject *obj, PyObject *type) {
PyObject *func = PyInstanceMethod_GET_FUNCTION(descr);
if (obj == NULL) {
Py_INCREF(func);
return func;
return Py_NewRef(func);
}
else
return PyMethod_New(func, obj);
@ -472,8 +465,7 @@ instancemethod_richcompare(PyObject *self, PyObject *other, int op)
res = eq ? Py_True : Py_False;
else
res = eq ? Py_False : Py_True;
Py_INCREF(res);
return res;
return Py_NewRef(res);
}
static PyObject *

51
Objects/codeobject.c
View File

@ -175,8 +175,7 @@ void
_Py_set_localsplus_info(int offset, PyObject *name, _PyLocals_Kind kind,
PyObject *names, PyObject *kinds)
{
Py_INCREF(name);
PyTuple_SET_ITEM(names, offset, name);
PyTuple_SET_ITEM(names, offset, Py_NewRef(name));
_PyLocals_SetKind(kinds, offset, kind);
}
@ -235,8 +234,7 @@ get_localsplus_names(PyCodeObject *co, _PyLocals_Kind kind, int num)
}
assert(index < num);
PyObject *name = PyTuple_GET_ITEM(co->co_localsplusnames, offset);
Py_INCREF(name);
PyTuple_SET_ITEM(names, index, name);
PyTuple_SET_ITEM(names, index, Py_NewRef(name));
index += 1;
}
assert(index == num);
@ -311,27 +309,19 @@ init_code(PyCodeObject *co, struct _PyCodeConstructor *con)
get_localsplus_counts(con->localsplusnames, con->localspluskinds,
&nlocals, &nplaincellvars, &ncellvars, &nfreevars);
Py_INCREF(con->filename);
co->co_filename = con->filename;
Py_INCREF(con->name);
co->co_name = con->name;
Py_INCREF(con->qualname);
co->co_qualname = con->qualname;
co->co_filename = Py_NewRef(con->filename);
co->co_name = Py_NewRef(con->name);
co->co_qualname = Py_NewRef(con->qualname);
co->co_flags = con->flags;
co->co_firstlineno = con->firstlineno;
Py_INCREF(con->linetable);
co->co_linetable = con->linetable;
co->co_linetable = Py_NewRef(con->linetable);
Py_INCREF(con->consts);
co->co_consts = con->consts;
Py_INCREF(con->names);
co->co_names = con->names;
co->co_consts = Py_NewRef(con->consts);
co->co_names = Py_NewRef(con->names);
Py_INCREF(con->localsplusnames);
co->co_localsplusnames = con->localsplusnames;
Py_INCREF(con->localspluskinds);
co->co_localspluskinds = con->localspluskinds;
co->co_localsplusnames = Py_NewRef(con->localsplusnames);
co->co_localspluskinds = Py_NewRef(con->localspluskinds);
co->co_argcount = con->argcount;
co->co_posonlyargcount = con->posonlyargcount;
@ -339,8 +329,7 @@ init_code(PyCodeObject *co, struct _PyCodeConstructor *con)
co->co_stacksize = con->stacksize;
Py_INCREF(con->exceptiontable);
co->co_exceptiontable = con->exceptiontable;
co->co_exceptiontable = Py_NewRef(con->exceptiontable);
/* derived values */
co->co_nlocalsplus = nlocalsplus;
@ -1144,8 +1133,7 @@ lineiter_next(lineiterator *li)
start = PyLong_FromLong(bounds->ar_start);
end = PyLong_FromLong(bounds->ar_end);
if (bounds->ar_line < 0) {
Py_INCREF(Py_None);
line = Py_None;
line = Py_NewRef(Py_None);
}
else {
line = PyLong_FromLong(bounds->ar_line);
@ -1215,8 +1203,7 @@ new_linesiterator(PyCodeObject *code)
if (li == NULL) {
return NULL;
}
Py_INCREF(code);
li->li_code = code;
li->li_code = (PyCodeObject*)Py_NewRef(code);
_PyCode_InitAddressRange(code, &li->li_line);
return li;
}
@ -1315,8 +1302,7 @@ code_positionsiterator(PyCodeObject* code, PyObject* Py_UNUSED(args))
if (pi == NULL) {
return NULL;
}
Py_INCREF(code);
pi->pi_code = code;
pi->pi_code = (PyCodeObject*)Py_NewRef(code);
_PyCode_InitAddressRange(code, &pi->pi_range);
pi->pi_offset = pi->pi_range.ar_end;
return (PyObject*)pi;
@ -1777,8 +1763,7 @@ code_richcompare(PyObject *self, PyObject *other, int op)
res = Py_False;
done:
Py_INCREF(res);
return res;
return Py_NewRef(res);
}
static Py_hash_t
@ -2030,8 +2015,7 @@ code__varname_from_oparg_impl(PyCodeObject *self, int oparg)
if (name == NULL) {
return NULL;
}
Py_INCREF(name);
return name;
return Py_NewRef(name);
}
/* XXX code objects need to participate in GC? */
@ -2106,8 +2090,7 @@ _PyCode_ConstantKey(PyObject *op)
{
/* Objects of these types are always different from object of other
* type and from tuples. */
Py_INCREF(op);
key = op;
key = Py_NewRef(op);
}
else if (PyBool_Check(op) || PyBytes_CheckExact(op)) {
/* Make booleans different from integers 0 and 1.

15
Objects/complexobject.c
View File

@ -449,8 +449,7 @@ to_complex(PyObject **pobj, Py_complex *pc)
pc->real = PyFloat_AsDouble(obj);
return 0;
}
Py_INCREF(Py_NotImplemented);
*pobj = Py_NotImplemented;
*pobj = Py_NewRef(Py_NotImplemented);
return -1;
}
@ -553,8 +552,7 @@ static PyObject *
complex_pos(PyComplexObject *v)
{
if (PyComplex_CheckExact(v)) {
Py_INCREF(v);
return (PyObject *)v;
return Py_NewRef(v);
}
else
return PyComplex_FromCComplex(v->cval);
@ -631,8 +629,7 @@ complex_richcompare(PyObject *v, PyObject *w, int op)
else
res = Py_False;
Py_INCREF(res);
return res;
return Py_NewRef(res);
Unimplemented:
Py_RETURN_NOTIMPLEMENTED;
@ -705,8 +702,7 @@ complex___complex___impl(PyComplexObject *self)
/*[clinic end generated code: output=e6b35ba3d275dc9c input=3589ada9d27db854]*/
{
if (PyComplex_CheckExact(self)) {
Py_INCREF(self);
return (PyObject *)self;
return Py_NewRef(self);
}
else {
return PyComplex_FromCComplex(self->cval);
@ -917,8 +913,7 @@ complex_new_impl(PyTypeObject *type, PyObject *r, PyObject *i)
to exact complexes here. If either the input or the
output is a complex subclass, it will be handled below
as a non-orthogonal vector. */
Py_INCREF(r);
return r;
return Py_NewRef(r);
}
if (PyUnicode_Check(r)) {
if (i != NULL) {

46
Objects/descrobject.c
View File

@ -622,8 +622,7 @@ descr_get_qualname(PyDescrObject *descr, void *Py_UNUSED(ignored))
{
if (descr->d_qualname == NULL)
descr->d_qualname = calculate_qualname(descr);
Py_XINCREF(descr->d_qualname);
return descr->d_qualname;
return Py_XNewRef(descr->d_qualname);
}
static PyObject *
@ -904,8 +903,7 @@ descr_new(PyTypeObject *descrtype, PyTypeObject *type, const char *name)
descr = (PyDescrObject *)PyType_GenericAlloc(descrtype, 0);
if (descr != NULL) {
Py_XINCREF(type);
descr->d_type = type;
descr->d_type = (PyTypeObject*)Py_XNewRef(type);
descr->d_name = PyUnicode_InternFromString(name);
if (descr->d_name == NULL) {
Py_DECREF(descr);
@ -1244,8 +1242,7 @@ mappingproxy_new_impl(PyTypeObject *type, PyObject *mapping)
mappingproxy = PyObject_GC_New(mappingproxyobject, &PyDictProxy_Type);
if (mappingproxy == NULL)
return NULL;
Py_INCREF(mapping);
mappingproxy->mapping = mapping;
mappingproxy->mapping = Py_NewRef(mapping);
_PyObject_GC_TRACK(mappingproxy);
return (PyObject *)mappingproxy;
}
@ -1260,8 +1257,7 @@ PyDictProxy_New(PyObject *mapping)
pp = PyObject_GC_New(mappingproxyobject, &PyDictProxy_Type);
if (pp != NULL) {
Py_INCREF(mapping);
pp->mapping = mapping;
pp->mapping = Py_NewRef(mapping);
_PyObject_GC_TRACK(pp);
}
return (PyObject *)pp;
@ -1361,8 +1357,7 @@ wrapper_objclass(wrapperobject *wp, void *Py_UNUSED(ignored))
{
PyObject *c = (PyObject *)PyDescr_TYPE(wp->descr);
Py_INCREF(c);
return c;
return Py_NewRef(c);
}
static PyObject *
@ -1466,10 +1461,8 @@ PyWrapper_New(PyObject *d, PyObject *self)
wp = PyObject_GC_New(wrapperobject, &_PyMethodWrapper_Type);
if (wp != NULL) {
Py_INCREF(descr);
wp->descr = descr;
Py_INCREF(self);
wp->self = self;
wp->descr = (PyWrapperDescrObject*)Py_NewRef(descr);
wp->self = Py_NewRef(self);
_PyObject_GC_TRACK(wp);
}
return (PyObject *)wp;
@ -1566,8 +1559,7 @@ property_set_name(PyObject *self, PyObject *args) {
propertyobject *prop = (propertyobject *)self;
PyObject *name = PyTuple_GET_ITEM(args, 1);
Py_XINCREF(name);
Py_XSETREF(prop->prop_name, name);
Py_XSETREF(prop->prop_name, Py_XNewRef(name));
Py_RETURN_NONE;
}
@ -1599,8 +1591,7 @@ static PyObject *
property_descr_get(PyObject *self, PyObject *obj, PyObject *type)
{
if (obj == NULL || obj == Py_None) {
Py_INCREF(self);
return self;
return Py_NewRef(self);
}
propertyobject *gs = (propertyobject *)self;
@ -1722,8 +1713,7 @@ property_copy(PyObject *old, PyObject *get, PyObject *set, PyObject *del)
if (new == NULL)
return NULL;
Py_XINCREF(pold->prop_name);
Py_XSETREF(((propertyobject *) new)->prop_name, pold->prop_name);
Py_XSETREF(((propertyobject *) new)->prop_name, Py_XNewRef(pold->prop_name));
return new;
}
@ -1776,13 +1766,9 @@ property_init_impl(propertyobject *self, PyObject *fget, PyObject *fset,
if (fdel == Py_None)
fdel = NULL;
Py_XINCREF(fget);
Py_XINCREF(fset);
Py_XINCREF(fdel);
Py_XSETREF(self->prop_get, fget);
Py_XSETREF(self->prop_set, fset);
Py_XSETREF(self->prop_del, fdel);
Py_XSETREF(self->prop_get, Py_XNewRef(fget));
Py_XSETREF(self->prop_set, Py_XNewRef(fset));
Py_XSETREF(self->prop_del, Py_XNewRef(fdel));
Py_XSETREF(self->prop_doc, NULL);
Py_XSETREF(self->prop_name, NULL);
@ -1790,8 +1776,7 @@ property_init_impl(propertyobject *self, PyObject *fget, PyObject *fset,
PyObject *prop_doc = NULL;
if (doc != NULL && doc != Py_None) {
prop_doc = doc;
Py_XINCREF(prop_doc);
prop_doc = Py_XNewRef(doc);
}
/* if no docstring given and the getter has one, use that one */
else if (fget != NULL) {
@ -1820,8 +1805,7 @@ property_init_impl(propertyobject *self, PyObject *fget, PyObject *fset,
class's dict. */
if (prop_doc == NULL) {
prop_doc = Py_None;
Py_INCREF(prop_doc);
prop_doc = Py_NewRef(Py_None);
}
int err = PyObject_SetAttr(
(PyObject *)self, &_Py_ID(__doc__), prop_doc);