https://github.com/python/cpython/commit/f8c041bff9117147b09eec1557bfbbd07149593a
commit: f8c041bff9117147b09eec1557bfbbd07149593a
branch: main
author: Bénédikt Tran <10796600+picn...@users.noreply.github.com>
committer: encukou <encu...@gmail.com>
date: 2025-02-19T11:58:47+01:00
summary:
gh-111178: fix UBSan failures in `Modules/itertoolsmodule.c` (GH-129780)
files:
M Modules/itertoolsmodule.c
diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c
index 3f736f0cf19968..3e425ee5f92dcd 100644
--- a/Modules/itertoolsmodule.c
+++ b/Modules/itertoolsmodule.c
@@ -104,6 +104,8 @@ typedef struct {
bool strict;
} batchedobject;
+#define batchedobject_CAST(op) ((batchedobject *)(op))
+
/*[clinic input]
@classmethod
itertools.batched.__new__ as batched_new
@@ -165,8 +167,9 @@ batched_new_impl(PyTypeObject *type, PyObject *iterable,
Py_ssize_t n,
}
static void
-batched_dealloc(batchedobject *bo)
+batched_dealloc(PyObject *op)
{
+ batchedobject *bo = batchedobject_CAST(op);
PyTypeObject *tp = Py_TYPE(bo);
PyObject_GC_UnTrack(bo);
Py_XDECREF(bo->it);
@@ -175,16 +178,18 @@ batched_dealloc(batchedobject *bo)
}
static int
-batched_traverse(batchedobject *bo, visitproc visit, void *arg)
+batched_traverse(PyObject *op, visitproc visit, void *arg)
{
+ batchedobject *bo = batchedobject_CAST(op);
Py_VISIT(Py_TYPE(bo));
Py_VISIT(bo->it);
return 0;
}
static PyObject *
-batched_next(batchedobject *bo)
+batched_next(PyObject *op)
{
+ batchedobject *bo = batchedobject_CAST(op);
Py_ssize_t i;
Py_ssize_t n = bo->batch_size;
PyObject *it = bo->it;
@@ -265,6 +270,8 @@ typedef struct {
PyObject *result;
} pairwiseobject;
+#define pairwiseobject_CAST(op) ((pairwiseobject *)(op))
+
/*[clinic input]
@classmethod
itertools.pairwise.__new__ as pairwise_new
@@ -303,8 +310,9 @@ pairwise_new_impl(PyTypeObject *type, PyObject *iterable)
}
static void
-pairwise_dealloc(pairwiseobject *po)
+pairwise_dealloc(PyObject *op)
{
+ pairwiseobject *po = pairwiseobject_CAST(op);
PyTypeObject *tp = Py_TYPE(po);
PyObject_GC_UnTrack(po);
Py_XDECREF(po->it);
@@ -315,8 +323,9 @@ pairwise_dealloc(pairwiseobject *po)
}
static int
-pairwise_traverse(pairwiseobject *po, visitproc visit, void *arg)
+pairwise_traverse(PyObject *op, visitproc visit, void *arg)
{
+ pairwiseobject *po = pairwiseobject_CAST(op);
Py_VISIT(Py_TYPE(po));
Py_VISIT(po->it);
Py_VISIT(po->old);
@@ -325,8 +334,9 @@ pairwise_traverse(pairwiseobject *po, visitproc visit, void
*arg)
}
static PyObject *
-pairwise_next(pairwiseobject *po)
+pairwise_next(PyObject *op)
{
+ pairwiseobject *po = pairwiseobject_CAST(op);
PyObject *it = po->it;
PyObject *old = po->old;
PyObject *new, *result;
@@ -419,6 +429,8 @@ typedef struct {
itertools_state *state;
} groupbyobject;
+#define groupbyobject_CAST(op) ((groupbyobject *)(op))
+
static PyObject *_grouper_create(groupbyobject *, PyObject *);
/*[clinic input]
@@ -458,8 +470,9 @@ itertools_groupby_impl(PyTypeObject *type, PyObject *it,
PyObject *keyfunc)
}
static void
-groupby_dealloc(groupbyobject *gbo)
+groupby_dealloc(PyObject *op)
{
+ groupbyobject *gbo = groupbyobject_CAST(op);
PyTypeObject *tp = Py_TYPE(gbo);
PyObject_GC_UnTrack(gbo);
Py_XDECREF(gbo->it);
@@ -472,8 +485,9 @@ groupby_dealloc(groupbyobject *gbo)
}
static int
-groupby_traverse(groupbyobject *gbo, visitproc visit, void *arg)
+groupby_traverse(PyObject *op, visitproc visit, void *arg)
{
+ groupbyobject *gbo = groupbyobject_CAST(op);
Py_VISIT(Py_TYPE(gbo));
Py_VISIT(gbo->it);
Py_VISIT(gbo->keyfunc);
@@ -510,9 +524,10 @@ groupby_step(groupbyobject *gbo)
}
static PyObject *
-groupby_next(groupbyobject *gbo)
+groupby_next(PyObject *op)
{
PyObject *r, *grouper;
+ groupbyobject *gbo = groupbyobject_CAST(op);
gbo->currgrouper = NULL;
/* skip to next iteration group */
@@ -574,6 +589,8 @@ typedef struct {
PyObject *tgtkey;
} _grouperobject;
+#define _grouperobject_CAST(op) ((_grouperobject *)(op))
+
/*[clinic input]
@classmethod
itertools._grouper.__new__
@@ -588,7 +605,7 @@ itertools__grouper_impl(PyTypeObject *type, PyObject
*parent,
PyObject *tgtkey)
/*[clinic end generated code: output=462efb1cdebb5914 input=afe05eb477118f12]*/
{
- return _grouper_create((groupbyobject*) parent, tgtkey);
+ return _grouper_create(groupbyobject_CAST(parent), tgtkey);
}
static PyObject *
@@ -607,8 +624,9 @@ _grouper_create(groupbyobject *parent, PyObject *tgtkey)
}
static void
-_grouper_dealloc(_grouperobject *igo)
+_grouper_dealloc(PyObject *op)
{
+ _grouperobject *igo = _grouperobject_CAST(op);
PyTypeObject *tp = Py_TYPE(igo);
PyObject_GC_UnTrack(igo);
Py_DECREF(igo->parent);
@@ -618,8 +636,9 @@ _grouper_dealloc(_grouperobject *igo)
}
static int
-_grouper_traverse(_grouperobject *igo, visitproc visit, void *arg)
+_grouper_traverse(PyObject *op, visitproc visit, void *arg)
{
+ _grouperobject *igo = _grouperobject_CAST(op);
Py_VISIT(Py_TYPE(igo));
Py_VISIT(igo->parent);
Py_VISIT(igo->tgtkey);
@@ -627,9 +646,10 @@ _grouper_traverse(_grouperobject *igo, visitproc visit,
void *arg)
}
static PyObject *
-_grouper_next(_grouperobject *igo)
+_grouper_next(PyObject *op)
{
- groupbyobject *gbo = (groupbyobject *)igo->parent;
+ _grouperobject *igo = _grouperobject_CAST(op);
+ groupbyobject *gbo = groupbyobject_CAST(igo->parent);
PyObject *r;
int rcmp;
@@ -694,6 +714,8 @@ typedef struct {
PyObject *(values[LINKCELLS]);
} teedataobject;
+#define teedataobject_CAST(op) ((teedataobject *)(op))
+
typedef struct {
PyObject_HEAD
teedataobject *dataobj;
@@ -702,6 +724,8 @@ typedef struct {
itertools_state *state;
} teeobject;
+#define teeobject_CAST(op) ((teeobject *)(op))
+
static PyObject *
teedataobject_newinternal(itertools_state *state, PyObject *it)
{
@@ -755,9 +779,10 @@ teedataobject_getitem(teedataobject *tdo, int i)
}
static int
-teedataobject_traverse(teedataobject *tdo, visitproc visit, void * arg)
+teedataobject_traverse(PyObject *op, visitproc visit, void * arg)
{
int i;
+ teedataobject *tdo = teedataobject_CAST(op);
Py_VISIT(Py_TYPE(tdo));
Py_VISIT(tdo->it);
@@ -771,18 +796,20 @@ static void
teedataobject_safe_decref(PyObject *obj)
{
while (obj && Py_REFCNT(obj) == 1) {
- PyObject *nextlink = ((teedataobject *)obj)->nextlink;
- ((teedataobject *)obj)->nextlink = NULL;
+ teedataobject *tmp = teedataobject_CAST(obj);
+ PyObject *nextlink = tmp->nextlink;
+ tmp->nextlink = NULL;
Py_SETREF(obj, nextlink);
}
Py_XDECREF(obj);
}
static int
-teedataobject_clear(teedataobject *tdo)
+teedataobject_clear(PyObject *op)
{
int i;
PyObject *tmp;
+ teedataobject *tdo = teedataobject_CAST(op);
Py_CLEAR(tdo->it);
for (i=0 ; i<tdo->numread ; i++)
@@ -794,12 +821,12 @@ teedataobject_clear(teedataobject *tdo)
}
static void
-teedataobject_dealloc(teedataobject *tdo)
+teedataobject_dealloc(PyObject *op)
{
- PyTypeObject *tp = Py_TYPE(tdo);
- PyObject_GC_UnTrack(tdo);
- teedataobject_clear(tdo);
- PyObject_GC_Del(tdo);
+ PyTypeObject *tp = Py_TYPE(op);
+ PyObject_GC_UnTrack(op);
+ (void)teedataobject_clear(op);
+ PyObject_GC_Del(op);
Py_DECREF(tp);
}
@@ -878,8 +905,9 @@ static PyType_Spec teedataobject_spec = {
static PyObject *
-tee_next(teeobject *to)
+tee_next(PyObject *op)
{
+ teeobject *to = teeobject_CAST(op);
PyObject *value, *link;
if (to->index >= LINKCELLS) {
@@ -897,27 +925,34 @@ tee_next(teeobject *to)
}
static int
-tee_traverse(teeobject *to, visitproc visit, void *arg)
+tee_traverse(PyObject *op, visitproc visit, void *arg)
{
+ teeobject *to = teeobject_CAST(op);
Py_VISIT(Py_TYPE(to));
Py_VISIT((PyObject *)to->dataobj);
return 0;
}
-static PyObject *
-tee_copy(teeobject *to, PyObject *Py_UNUSED(ignored))
+static teeobject *
+tee_copy_impl(teeobject *to)
{
- teeobject *newto;
-
- newto = PyObject_GC_New(teeobject, Py_TYPE(to));
- if (newto == NULL)
+ teeobject *newto = PyObject_GC_New(teeobject, Py_TYPE(to));
+ if (newto == NULL) {
return NULL;
- newto->dataobj = (teedataobject*)Py_NewRef(to->dataobj);
+ }
+ newto->dataobj = (teedataobject *)Py_NewRef(to->dataobj);
newto->index = to->index;
newto->weakreflist = NULL;
newto->state = to->state;
PyObject_GC_Track(newto);
- return (PyObject *)newto;
+ return newto;
+}
+
+static inline PyObject *
+tee_copy(PyObject *op, PyObject *Py_UNUSED(ignored))
+{
+ teeobject *to = teeobject_CAST(op);
+ return (PyObject *)tee_copy_impl(to);
}
PyDoc_STRVAR(teecopy_doc, "Returns an independent iterator.");
@@ -932,7 +967,7 @@ tee_fromiterable(itertools_state *state, PyObject *iterable)
if (it == NULL)
return NULL;
if (PyObject_TypeCheck(it, state->tee_type)) {
- to = (teeobject *)tee_copy((teeobject *)it, NULL);
+ to = tee_copy_impl((teeobject *)it); // 'it' can be fast casted
goto done;
}
@@ -973,26 +1008,27 @@ itertools__tee_impl(PyTypeObject *type, PyObject
*iterable)
}
static int
-tee_clear(teeobject *to)
+tee_clear(PyObject *op)
{
+ teeobject *to = teeobject_CAST(op);
if (to->weakreflist != NULL)
- PyObject_ClearWeakRefs((PyObject *) to);
+ PyObject_ClearWeakRefs(op);
Py_CLEAR(to->dataobj);
return 0;
}
static void
-tee_dealloc(teeobject *to)
+tee_dealloc(PyObject *op)
{
- PyTypeObject *tp = Py_TYPE(to);
- PyObject_GC_UnTrack(to);
- tee_clear(to);
- PyObject_GC_Del(to);
+ PyTypeObject *tp = Py_TYPE(op);
+ PyObject_GC_UnTrack(op);
+ (void)tee_clear(op);
+ PyObject_GC_Del(op);
Py_DECREF(tp);
}
static PyMethodDef tee_methods[] = {
- {"__copy__", (PyCFunction)tee_copy, METH_NOARGS, teecopy_doc},
+ {"__copy__", tee_copy, METH_NOARGS, teecopy_doc},
{NULL, NULL} /* sentinel */
};
@@ -1063,7 +1099,7 @@ itertools_tee_impl(PyObject *module, PyObject *iterable,
Py_ssize_t n)
PyTuple_SET_ITEM(result, 0, to);
for (i = 1; i < n; i++) {
- to = tee_copy((teeobject *)to, NULL);
+ to = tee_copy(to, NULL);
if (to == NULL) {
Py_DECREF(result);
return NULL;
@@ -1084,6 +1120,8 @@ typedef struct {
int firstpass;
} cycleobject;
+#define cycleobject_CAST(op) ((cycleobject *)(op))
+
/*[clinic input]
@classmethod
itertools.cycle.__new__
@@ -1127,8 +1165,9 @@ itertools_cycle_impl(PyTypeObject *type, PyObject
*iterable)
}
static void
-cycle_dealloc(cycleobject *lz)
+cycle_dealloc(PyObject *op)
{
+ cycleobject *lz = cycleobject_CAST(op);
PyTypeObject *tp = Py_TYPE(lz);
PyObject_GC_UnTrack(lz);
Py_XDECREF(lz->it);
@@ -1138,8 +1177,9 @@ cycle_dealloc(cycleobject *lz)
}
static int
-cycle_traverse(cycleobject *lz, visitproc visit, void *arg)
+cycle_traverse(PyObject *op, visitproc visit, void *arg)
{
+ cycleobject *lz = cycleobject_CAST(op);
Py_VISIT(Py_TYPE(lz));
Py_VISIT(lz->it);
Py_VISIT(lz->saved);
@@ -1147,8 +1187,9 @@ cycle_traverse(cycleobject *lz, visitproc visit, void
*arg)
}
static PyObject *
-cycle_next(cycleobject *lz)
+cycle_next(PyObject *op)
{
+ cycleobject *lz = cycleobject_CAST(op);
PyObject *item;
if (lz->it != NULL) {
@@ -1206,6 +1247,8 @@ typedef struct {
long start;
} dropwhileobject;
+#define dropwhileobject_CAST(op) ((dropwhileobject *)(op))
+
/*[clinic input]
@classmethod
itertools.dropwhile.__new__
@@ -1243,8 +1286,9 @@ itertools_dropwhile_impl(PyTypeObject *type, PyObject
*func, PyObject *seq)
}
static void
-dropwhile_dealloc(dropwhileobject *lz)
+dropwhile_dealloc(PyObject *op)
{
+ dropwhileobject *lz = dropwhileobject_CAST(op);
PyTypeObject *tp = Py_TYPE(lz);
PyObject_GC_UnTrack(lz);
Py_XDECREF(lz->func);
@@ -1254,8 +1298,9 @@ dropwhile_dealloc(dropwhileobject *lz)
}
static int
-dropwhile_traverse(dropwhileobject *lz, visitproc visit, void *arg)
+dropwhile_traverse(PyObject *op, visitproc visit, void *arg)
{
+ dropwhileobject *lz = dropwhileobject_CAST(op);
Py_VISIT(Py_TYPE(lz));
Py_VISIT(lz->it);
Py_VISIT(lz->func);
@@ -1263,8 +1308,9 @@ dropwhile_traverse(dropwhileobject *lz, visitproc visit,
void *arg)
}
static PyObject *
-dropwhile_next(dropwhileobject *lz)
+dropwhile_next(PyObject *op)
{
+ dropwhileobject *lz = dropwhileobject_CAST(op);
PyObject *item, *good;
PyObject *it = lz->it;
long ok;
@@ -1325,6 +1371,8 @@ typedef struct {
long stop;
} takewhileobject;
+#define takewhileobject_CAST(op) ((takewhileobject *)(op))
+
/*[clinic input]
@classmethod
itertools.takewhile.__new__
@@ -1360,8 +1408,9 @@ itertools_takewhile_impl(PyTypeObject *type, PyObject
*func, PyObject *seq)
}
static void
-takewhile_dealloc(takewhileobject *lz)
+takewhile_dealloc(PyObject *op)
{
+ takewhileobject *lz = takewhileobject_CAST(op);
PyTypeObject *tp = Py_TYPE(lz);
PyObject_GC_UnTrack(lz);
Py_XDECREF(lz->func);
@@ -1371,8 +1420,9 @@ takewhile_dealloc(takewhileobject *lz)
}
static int
-takewhile_traverse(takewhileobject *lz, visitproc visit, void *arg)
+takewhile_traverse(PyObject *op, visitproc visit, void *arg)
{
+ takewhileobject *lz = takewhileobject_CAST(op);
Py_VISIT(Py_TYPE(lz));
Py_VISIT(lz->it);
Py_VISIT(lz->func);
@@ -1380,8 +1430,9 @@ takewhile_traverse(takewhileobject *lz, visitproc visit,
void *arg)
}
static PyObject *
-takewhile_next(takewhileobject *lz)
+takewhile_next(PyObject *op)
{
+ takewhileobject *lz = takewhileobject_CAST(op);
PyObject *item, *good;
PyObject *it = lz->it;
long ok;
@@ -1440,6 +1491,8 @@ typedef struct {
Py_ssize_t cnt;
} isliceobject;
+#define isliceobject_CAST(op) ((isliceobject *)(op))
+
static PyObject *
islice_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
@@ -1528,8 +1581,9 @@ islice_new(PyTypeObject *type, PyObject *args, PyObject
*kwds)
}
static void
-islice_dealloc(isliceobject *lz)
+islice_dealloc(PyObject *op)
{
+ isliceobject *lz = isliceobject_CAST(op);
PyTypeObject *tp = Py_TYPE(lz);
PyObject_GC_UnTrack(lz);
Py_XDECREF(lz->it);
@@ -1538,16 +1592,18 @@ islice_dealloc(isliceobject *lz)
}
static int
-islice_traverse(isliceobject *lz, visitproc visit, void *arg)
+islice_traverse(PyObject *op, visitproc visit, void *arg)
{
+ isliceobject *lz = isliceobject_CAST(op);
Py_VISIT(Py_TYPE(lz));
Py_VISIT(lz->it);
return 0;
}
static PyObject *
-islice_next(isliceobject *lz)
+islice_next(PyObject *op)
{
+ isliceobject *lz = isliceobject_CAST(op);
PyObject *item;
PyObject *it = lz->it;
Py_ssize_t stop = lz->stop;
@@ -1624,6 +1680,8 @@ typedef struct {
PyObject *it;
} starmapobject;
+#define starmapobject_CAST(op) ((starmapobject *)(op))
+
/*[clinic input]
@classmethod
itertools.starmap.__new__
@@ -1658,8 +1716,9 @@ itertools_starmap_impl(PyTypeObject *type, PyObject
*func, PyObject *seq)
}
static void
-starmap_dealloc(starmapobject *lz)
+starmap_dealloc(PyObject *op)
{
+ starmapobject *lz = starmapobject_CAST(op);
PyTypeObject *tp = Py_TYPE(lz);
PyObject_GC_UnTrack(lz);
Py_XDECREF(lz->func);
@@ -1669,8 +1728,9 @@ starmap_dealloc(starmapobject *lz)
}
static int
-starmap_traverse(starmapobject *lz, visitproc visit, void *arg)
+starmap_traverse(PyObject *op, visitproc visit, void *arg)
{
+ starmapobject *lz = starmapobject_CAST(op);
Py_VISIT(Py_TYPE(lz));
Py_VISIT(lz->it);
Py_VISIT(lz->func);
@@ -1678,8 +1738,9 @@ starmap_traverse(starmapobject *lz, visitproc visit, void
*arg)
}
static PyObject *
-starmap_next(starmapobject *lz)
+starmap_next(PyObject *op)
{
+ starmapobject *lz = starmapobject_CAST(op);
PyObject *args;
PyObject *result;
PyObject *it = lz->it;
@@ -1728,6 +1789,8 @@ typedef struct {
PyObject *active; /* Currently running input iterator */
} chainobject;
+#define chainobject_CAST(op) ((chainobject *)(op))
+
static PyObject *
chain_new_internal(PyTypeObject *type, PyObject *source)
{
@@ -1784,8 +1847,9 @@ itertools_chain_from_iterable(PyTypeObject *type,
PyObject *arg)
}
static void
-chain_dealloc(chainobject *lz)
+chain_dealloc(PyObject *op)
{
+ chainobject *lz = chainobject_CAST(op);
PyTypeObject *tp = Py_TYPE(lz);
PyObject_GC_UnTrack(lz);
Py_XDECREF(lz->active);
@@ -1795,8 +1859,9 @@ chain_dealloc(chainobject *lz)
}
static int
-chain_traverse(chainobject *lz, visitproc visit, void *arg)
+chain_traverse(PyObject *op, visitproc visit, void *arg)
{
+ chainobject *lz = chainobject_CAST(op);
Py_VISIT(Py_TYPE(lz));
Py_VISIT(lz->source);
Py_VISIT(lz->active);
@@ -1804,8 +1869,9 @@ chain_traverse(chainobject *lz, visitproc visit, void
*arg)
}
static PyObject *
-chain_next(chainobject *lz)
+chain_next(PyObject *op)
{
+ chainobject *lz = chainobject_CAST(op);
PyObject *item;
/* lz->source is the iterator of iterables. If it's NULL, we've already
@@ -1888,6 +1954,8 @@ typedef struct {
int stopped; /* set to 1 when the iterator is exhausted */
} productobject;
+#define productobject_CAST(op) ((productobject *)(op))
+
static PyObject *
product_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
@@ -1972,21 +2040,22 @@ product_new(PyTypeObject *type, PyObject *args,
PyObject *kwds)
}
static void
-product_dealloc(productobject *lz)
+product_dealloc(PyObject *op)
{
+ productobject *lz = productobject_CAST(op);
PyTypeObject *tp = Py_TYPE(lz);
PyObject_GC_UnTrack(lz);
Py_XDECREF(lz->pools);
Py_XDECREF(lz->result);
- if (lz->indices != NULL)
- PyMem_Free(lz->indices);
+ PyMem_Free(lz->indices);
tp->tp_free(lz);
Py_DECREF(tp);
}
static PyObject *
-product_sizeof(productobject *lz, void *unused)
+product_sizeof(PyObject *op, PyObject *Py_UNUSED(ignored))
{
+ productobject *lz = productobject_CAST(op);
size_t res = _PyObject_SIZE(Py_TYPE(lz));
res += (size_t)PyTuple_GET_SIZE(lz->pools) * sizeof(Py_ssize_t);
return PyLong_FromSize_t(res);
@@ -1995,8 +2064,9 @@ product_sizeof(productobject *lz, void *unused)
PyDoc_STRVAR(sizeof_doc, "Returns size in memory, in bytes.");
static int
-product_traverse(productobject *lz, visitproc visit, void *arg)
+product_traverse(PyObject *op, visitproc visit, void *arg)
{
+ productobject *lz = productobject_CAST(op);
Py_VISIT(Py_TYPE(lz));
Py_VISIT(lz->pools);
Py_VISIT(lz->result);
@@ -2004,8 +2074,9 @@ product_traverse(productobject *lz, visitproc visit, void
*arg)
}
static PyObject *
-product_next(productobject *lz)
+product_next(PyObject *op)
{
+ productobject *lz = productobject_CAST(op);
PyObject *pool;
PyObject *elem;
PyObject *oldelem;
@@ -2090,8 +2161,7 @@ product_next(productobject *lz)
}
static PyMethodDef product_methods[] = {
- {"__sizeof__", (PyCFunction)product_sizeof, METH_NOARGS,
- sizeof_doc},
+ {"__sizeof__", product_sizeof, METH_NOARGS, sizeof_doc},
{NULL, NULL} /* sentinel */
};
@@ -2143,6 +2213,7 @@ typedef struct {
int stopped; /* set to 1 when the iterator is exhausted */
} combinationsobject;
+#define combinationsobject_CAST(op) ((combinationsobject *)(op))
/*[clinic input]
@classmethod
@@ -2204,29 +2275,31 @@ itertools_combinations_impl(PyTypeObject *type,
PyObject *iterable,
}
static void
-combinations_dealloc(combinationsobject *co)
+combinations_dealloc(PyObject *op)
{
+ combinationsobject *co = combinationsobject_CAST(op);
PyTypeObject *tp = Py_TYPE(co);
PyObject_GC_UnTrack(co);
Py_XDECREF(co->pool);
Py_XDECREF(co->result);
- if (co->indices != NULL)
- PyMem_Free(co->indices);
+ PyMem_Free(co->indices);
tp->tp_free(co);
Py_DECREF(tp);
}
static PyObject *
-combinations_sizeof(combinationsobject *co, void *unused)
+combinations_sizeof(PyObject *op, PyObject *Py_UNUSED(args))
{
+ combinationsobject *co = combinationsobject_CAST(op);
size_t res = _PyObject_SIZE(Py_TYPE(co));
res += (size_t)co->r * sizeof(Py_ssize_t);
return PyLong_FromSize_t(res);
}
static int
-combinations_traverse(combinationsobject *co, visitproc visit, void *arg)
+combinations_traverse(PyObject *op, visitproc visit, void *arg)
{
+ combinationsobject *co = combinationsobject_CAST(op);
Py_VISIT(Py_TYPE(co));
Py_VISIT(co->pool);
Py_VISIT(co->result);
@@ -2234,8 +2307,9 @@ combinations_traverse(combinationsobject *co, visitproc
visit, void *arg)
}
static PyObject *
-combinations_next(combinationsobject *co)
+combinations_next(PyObject *op)
{
+ combinationsobject *co = combinationsobject_CAST(op);
PyObject *elem;
PyObject *oldelem;
PyObject *pool = co->pool;
@@ -2319,8 +2393,7 @@ combinations_next(combinationsobject *co)
}
static PyMethodDef combinations_methods[] = {
- {"__sizeof__", (PyCFunction)combinations_sizeof, METH_NOARGS,
- sizeof_doc},
+ {"__sizeof__", combinations_sizeof, METH_NOARGS, sizeof_doc},
{NULL, NULL} /* sentinel */
};
@@ -2383,6 +2456,8 @@ typedef struct {
int stopped; /* set to 1 when the cwr iterator is exhausted */
} cwrobject;
+#define cwrobject_CAST(op) ((cwrobject *)(op))
+
/*[clinic input]
@classmethod
itertools.combinations_with_replacement.__new__
@@ -2444,29 +2519,31 @@
itertools_combinations_with_replacement_impl(PyTypeObject *type,
}
static void
-cwr_dealloc(cwrobject *co)
+cwr_dealloc(PyObject *op)
{
+ cwrobject *co = cwrobject_CAST(op);
PyTypeObject *tp = Py_TYPE(co);
PyObject_GC_UnTrack(co);
Py_XDECREF(co->pool);
Py_XDECREF(co->result);
- if (co->indices != NULL)
- PyMem_Free(co->indices);
+ PyMem_Free(co->indices);
tp->tp_free(co);
Py_DECREF(tp);
}
static PyObject *
-cwr_sizeof(cwrobject *co, void *unused)
+cwr_sizeof(PyObject *op, PyObject *Py_UNUSED(args))
{
+ cwrobject *co = cwrobject_CAST(op);
size_t res = _PyObject_SIZE(Py_TYPE(co));
res += (size_t)co->r * sizeof(Py_ssize_t);
return PyLong_FromSize_t(res);
}
static int
-cwr_traverse(cwrobject *co, visitproc visit, void *arg)
+cwr_traverse(PyObject *op, visitproc visit, void *arg)
{
+ cwrobject *co = cwrobject_CAST(op);
Py_VISIT(Py_TYPE(co));
Py_VISIT(co->pool);
Py_VISIT(co->result);
@@ -2474,8 +2551,9 @@ cwr_traverse(cwrobject *co, visitproc visit, void *arg)
}
static PyObject *
-cwr_next(cwrobject *co)
+cwr_next(PyObject *op)
{
+ cwrobject *co = cwrobject_CAST(op);
PyObject *elem;
PyObject *oldelem;
PyObject *pool = co->pool;
@@ -2553,8 +2631,7 @@ cwr_next(cwrobject *co)
}
static PyMethodDef cwr_methods[] = {
- {"__sizeof__", (PyCFunction)cwr_sizeof, METH_NOARGS,
- sizeof_doc},
+ {"__sizeof__", cwr_sizeof, METH_NOARGS, sizeof_doc},
{NULL, NULL} /* sentinel */
};
@@ -2618,6 +2695,8 @@ typedef struct {
int stopped; /* set to 1 when the iterator is exhausted */
} permutationsobject;
+#define permutationsobject_CAST(op) ((permutationsobject *)(op))
+
/*[clinic input]
@classmethod
itertools.permutations.__new__
@@ -2697,8 +2776,9 @@ itertools_permutations_impl(PyTypeObject *type, PyObject
*iterable,
}
static void
-permutations_dealloc(permutationsobject *po)
+permutations_dealloc(PyObject *op)
{
+ permutationsobject *po = permutationsobject_CAST(op);
PyTypeObject *tp = Py_TYPE(po);
PyObject_GC_UnTrack(po);
Py_XDECREF(po->pool);
@@ -2710,8 +2790,9 @@ permutations_dealloc(permutationsobject *po)
}
static PyObject *
-permutations_sizeof(permutationsobject *po, void *unused)
+permutations_sizeof(PyObject *op, PyObject *Py_UNUSED(args))
{
+ permutationsobject *po = permutationsobject_CAST(op);
size_t res = _PyObject_SIZE(Py_TYPE(po));
res += (size_t)PyTuple_GET_SIZE(po->pool) * sizeof(Py_ssize_t);
res += (size_t)po->r * sizeof(Py_ssize_t);
@@ -2719,8 +2800,9 @@ permutations_sizeof(permutationsobject *po, void *unused)
}
static int
-permutations_traverse(permutationsobject *po, visitproc visit, void *arg)
+permutations_traverse(PyObject *op, visitproc visit, void *arg)
{
+ permutationsobject *po = permutationsobject_CAST(op);
Py_VISIT(Py_TYPE(po));
Py_VISIT(po->pool);
Py_VISIT(po->result);
@@ -2728,8 +2810,9 @@ permutations_traverse(permutationsobject *po, visitproc
visit, void *arg)
}
static PyObject *
-permutations_next(permutationsobject *po)
+permutations_next(PyObject *op)
{
+ permutationsobject *po = permutationsobject_CAST(op);
PyObject *elem;
PyObject *oldelem;
PyObject *pool = po->pool;
@@ -2818,8 +2901,7 @@ permutations_next(permutationsobject *po)
}
static PyMethodDef permuations_methods[] = {
- {"__sizeof__", (PyCFunction)permutations_sizeof, METH_NOARGS,
- sizeof_doc},
+ {"__sizeof__", permutations_sizeof, METH_NOARGS, sizeof_doc},
{NULL, NULL} /* sentinel */
};
@@ -2856,6 +2938,8 @@ typedef struct {
itertools_state *state;
} accumulateobject;
+#define accumulateobject_CAST(op) ((accumulateobject *)(op))
+
/*[clinic input]
@classmethod
itertools.accumulate.__new__
@@ -2897,8 +2981,9 @@ itertools_accumulate_impl(PyTypeObject *type, PyObject
*iterable,
}
static void
-accumulate_dealloc(accumulateobject *lz)
+accumulate_dealloc(PyObject *op)
{
+ accumulateobject *lz = accumulateobject_CAST(op);
PyTypeObject *tp = Py_TYPE(lz);
PyObject_GC_UnTrack(lz);
Py_XDECREF(lz->binop);
@@ -2910,8 +2995,9 @@ accumulate_dealloc(accumulateobject *lz)
}
static int
-accumulate_traverse(accumulateobject *lz, visitproc visit, void *arg)
+accumulate_traverse(PyObject *op, visitproc visit, void *arg)
{
+ accumulateobject *lz = accumulateobject_CAST(op);
Py_VISIT(Py_TYPE(lz));
Py_VISIT(lz->binop);
Py_VISIT(lz->it);
@@ -2921,8 +3007,9 @@ accumulate_traverse(accumulateobject *lz, visitproc
visit, void *arg)
}
static PyObject *
-accumulate_next(accumulateobject *lz)
+accumulate_next(PyObject *op)
{
+ accumulateobject *lz = accumulateobject_CAST(op);
PyObject *val, *newtotal;
if (lz->initial != Py_None) {
@@ -2988,6 +3075,8 @@ typedef struct {
PyObject *selectors;
} compressobject;
+#define compressobject_CAST(op) ((compressobject *)(op))
+
/*[clinic input]
@classmethod
itertools.compress.__new__
@@ -3028,8 +3117,9 @@ itertools_compress_impl(PyTypeObject *type, PyObject
*seq1, PyObject *seq2)
}
static void
-compress_dealloc(compressobject *lz)
+compress_dealloc(PyObject *op)
{
+ compressobject *lz = compressobject_CAST(op);
PyTypeObject *tp = Py_TYPE(lz);
PyObject_GC_UnTrack(lz);
Py_XDECREF(lz->data);
@@ -3039,8 +3129,9 @@ compress_dealloc(compressobject *lz)
}
static int
-compress_traverse(compressobject *lz, visitproc visit, void *arg)
+compress_traverse(PyObject *op, visitproc visit, void *arg)
{
+ compressobject *lz = compressobject_CAST(op);
Py_VISIT(Py_TYPE(lz));
Py_VISIT(lz->data);
Py_VISIT(lz->selectors);
@@ -3048,8 +3139,9 @@ compress_traverse(compressobject *lz, visitproc visit,
void *arg)
}
static PyObject *
-compress_next(compressobject *lz)
+compress_next(PyObject *op)
{
+ compressobject *lz = compressobject_CAST(op);
PyObject *data = lz->data, *selectors = lz->selectors;
PyObject *datum, *selector;
PyObject *(*datanext)(PyObject *) = *Py_TYPE(data)->tp_iternext;
@@ -3112,6 +3204,8 @@ typedef struct {
PyObject *it;
} filterfalseobject;
+#define filterfalseobject_CAST(op) ((filterfalseobject *)(op))
+
/*[clinic input]
@classmethod
itertools.filterfalse.__new__
@@ -3148,8 +3242,9 @@ itertools_filterfalse_impl(PyTypeObject *type, PyObject
*func, PyObject *seq)
}
static void
-filterfalse_dealloc(filterfalseobject *lz)
+filterfalse_dealloc(PyObject *op)
{
+ filterfalseobject *lz = filterfalseobject_CAST(op);
PyTypeObject *tp = Py_TYPE(lz);
PyObject_GC_UnTrack(lz);
Py_XDECREF(lz->func);
@@ -3159,8 +3254,9 @@ filterfalse_dealloc(filterfalseobject *lz)
}
static int
-filterfalse_traverse(filterfalseobject *lz, visitproc visit, void *arg)
+filterfalse_traverse(PyObject *op, visitproc visit, void *arg)
{
+ filterfalseobject *lz = filterfalseobject_CAST(op);
Py_VISIT(Py_TYPE(lz));
Py_VISIT(lz->it);
Py_VISIT(lz->func);
@@ -3168,8 +3264,9 @@ filterfalse_traverse(filterfalseobject *lz, visitproc
visit, void *arg)
}
static PyObject *
-filterfalse_next(filterfalseobject *lz)
+filterfalse_next(PyObject *op)
{
+ filterfalseobject *lz = filterfalseobject_CAST(op);
PyObject *item;
PyObject *it = lz->it;
long ok;
@@ -3231,6 +3328,8 @@ typedef struct {
PyObject *long_step;
} countobject;
+#define countobject_CAST(op) ((countobject *)(op))
+
/* Counting logic and invariants:
fast_mode: when cnt an integer < PY_SSIZE_T_MAX and no step is specified.
@@ -3342,8 +3441,9 @@ itertools_count_impl(PyTypeObject *type, PyObject
*long_cnt,
}
static void
-count_dealloc(countobject *lz)
+count_dealloc(PyObject *op)
{
+ countobject *lz = countobject_CAST(op);
PyTypeObject *tp = Py_TYPE(lz);
PyObject_GC_UnTrack(lz);
Py_XDECREF(lz->long_cnt);
@@ -3353,8 +3453,9 @@ count_dealloc(countobject *lz)
}
static int
-count_traverse(countobject *lz, visitproc visit, void *arg)
+count_traverse(PyObject *op, visitproc visit, void *arg)
{
+ countobject *lz = countobject_CAST(op);
Py_VISIT(Py_TYPE(lz));
Py_VISIT(lz->long_cnt);
Py_VISIT(lz->long_step);
@@ -3384,8 +3485,9 @@ count_nextlong(countobject *lz)
}
static PyObject *
-count_next(countobject *lz)
+count_next(PyObject *op)
{
+ countobject *lz = countobject_CAST(op);
#ifndef Py_GIL_DISABLED
if (lz->cnt == PY_SSIZE_T_MAX)
return count_nextlong(lz);
@@ -3413,8 +3515,9 @@ count_next(countobject *lz)
}
static PyObject *
-count_repr(countobject *lz)
+count_repr(PyObject *op)
{
+ countobject *lz = countobject_CAST(op);
if (lz->long_cnt == NULL)
return PyUnicode_FromFormat("%s(%zd)",
_PyType_Name(Py_TYPE(lz)), lz->cnt);
@@ -3466,6 +3569,8 @@ typedef struct {
Py_ssize_t cnt;
} repeatobject;
+#define repeatobject_CAST(op) ((repeatobject *)(op))
+
static PyObject *
repeat_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
@@ -3493,8 +3598,9 @@ repeat_new(PyTypeObject *type, PyObject *args, PyObject
*kwds)
}
static void
-repeat_dealloc(repeatobject *ro)
+repeat_dealloc(PyObject *op)
{
+ repeatobject *ro = repeatobject_CAST(op);
PyTypeObject *tp = Py_TYPE(ro);
PyObject_GC_UnTrack(ro);
Py_XDECREF(ro->element);
@@ -3503,16 +3609,18 @@ repeat_dealloc(repeatobject *ro)
}
static int
-repeat_traverse(repeatobject *ro, visitproc visit, void *arg)
+repeat_traverse(PyObject *op, visitproc visit, void *arg)
{
+ repeatobject *ro = repeatobject_CAST(op);
Py_VISIT(Py_TYPE(ro));
Py_VISIT(ro->element);
return 0;
}
static PyObject *
-repeat_next(repeatobject *ro)
+repeat_next(PyObject *op)
{
+ repeatobject *ro = repeatobject_CAST(op);
if (ro->cnt == 0)
return NULL;
if (ro->cnt > 0)
@@ -3521,8 +3629,9 @@ repeat_next(repeatobject *ro)
}
static PyObject *
-repeat_repr(repeatobject *ro)
+repeat_repr(PyObject *op)
{
+ repeatobject *ro = repeatobject_CAST(op);
if (ro->cnt == -1)
return PyUnicode_FromFormat("%s(%R)",
_PyType_Name(Py_TYPE(ro)), ro->element);
@@ -3533,8 +3642,9 @@ repeat_repr(repeatobject *ro)
}
static PyObject *
-repeat_len(repeatobject *ro, PyObject *Py_UNUSED(ignored))
+repeat_len(PyObject *op, PyObject *Py_UNUSED(args))
{
+ repeatobject *ro = repeatobject_CAST(op);
if (ro->cnt == -1) {
PyErr_SetString(PyExc_TypeError, "len() of unsized object");
return NULL;
@@ -3545,7 +3655,7 @@ repeat_len(repeatobject *ro, PyObject *Py_UNUSED(ignored))
PyDoc_STRVAR(length_hint_doc, "Private method returning an estimate of
len(list(it)).");
static PyMethodDef repeat_methods[] = {
- {"__length_hint__", (PyCFunction)repeat_len, METH_NOARGS, length_hint_doc},
+ {"__length_hint__", repeat_len, METH_NOARGS, length_hint_doc},
{NULL, NULL} /* sentinel */
};
@@ -3588,6 +3698,8 @@ typedef struct {
PyObject *fillvalue;
} ziplongestobject;
+#define ziplongestobject_CAST(op) ((ziplongestobject *)(op))
+
static PyObject *
zip_longest_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
@@ -3657,8 +3769,9 @@ zip_longest_new(PyTypeObject *type, PyObject *args,
PyObject *kwds)
}
static void
-zip_longest_dealloc(ziplongestobject *lz)
+zip_longest_dealloc(PyObject *op)
{
+ ziplongestobject *lz = ziplongestobject_CAST(op);
PyTypeObject *tp = Py_TYPE(lz);
PyObject_GC_UnTrack(lz);
Py_XDECREF(lz->ittuple);
@@ -3669,8 +3782,9 @@ zip_longest_dealloc(ziplongestobject *lz)
}
static int
-zip_longest_traverse(ziplongestobject *lz, visitproc visit, void *arg)
+zip_longest_traverse(PyObject *op, visitproc visit, void *arg)
{
+ ziplongestobject *lz = ziplongestobject_CAST(op);
Py_VISIT(Py_TYPE(lz));
Py_VISIT(lz->ittuple);
Py_VISIT(lz->result);
@@ -3679,8 +3793,9 @@ zip_longest_traverse(ziplongestobject *lz, visitproc
visit, void *arg)
}
static PyObject *
-zip_longest_next(ziplongestobject *lz)
+zip_longest_next(PyObject *op)
{
+ ziplongestobject *lz = ziplongestobject_CAST(op);
Py_ssize_t i;
Py_ssize_t tuplesize = lz->tuplesize;
PyObject *result = lz->result;
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