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authorMiss Islington (bot) <31488909+miss-islington@users.noreply.github.com>2021-12-30 05:29:19 (GMT)
committerGitHub <noreply@github.com>2021-12-30 05:29:19 (GMT)
commit2d4049da1f61df5cb4314d7e10b54fa556880b0e (patch)
treeb97c447dfb34f74b597ecb3b36bcd412ce10dd44
parent864caaabe4264798afd0e9fde0fc875c7208429d (diff)
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bpo-46085: Fix iterator cache mechanism of OrderedDict. (GH-30290)
(cherry picked from commit fb44d0589615590b1e7895ba78a038e96b15a219) Co-authored-by: Dong-hee Na <donghee.na@python.org>
-rw-r--r--Misc/NEWS.d/next/Core and Builtins/2021-12-30-00-23-41.bpo-46085.bDuJqu.rst1
-rw-r--r--Objects/odictobject.c8
2 files changed, 6 insertions, 3 deletions
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-12-30-00-23-41.bpo-46085.bDuJqu.rst b/Misc/NEWS.d/next/Core and Builtins/2021-12-30-00-23-41.bpo-46085.bDuJqu.rst
new file mode 100644
index 0000000..a2093f7
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2021-12-30-00-23-41.bpo-46085.bDuJqu.rst
@@ -0,0 +1 @@
+Fix iterator cache mechanism of :class:`OrderedDict`.
diff --git a/Objects/odictobject.c b/Objects/odictobject.c
index b9f2169..f3980ab 100644
--- a/Objects/odictobject.c
+++ b/Objects/odictobject.c
@@ -1290,6 +1290,7 @@ PyDoc_STRVAR(odict_reversed__doc__, "od.__reversed__() <==> reversed(od)");
#define _odict_ITER_REVERSED 1
#define _odict_ITER_KEYS 2
#define _odict_ITER_VALUES 4
+#define _odict_ITER_ITEMS (_odict_ITER_KEYS|_odict_ITER_VALUES)
/* forward */
static PyObject * odictiter_new(PyODictObject *, int);
@@ -1708,7 +1709,7 @@ odictiter_dealloc(odictiterobject *di)
_PyObject_GC_UNTRACK(di);
Py_XDECREF(di->di_odict);
Py_XDECREF(di->di_current);
- if (di->kind & (_odict_ITER_KEYS | _odict_ITER_VALUES)) {
+ if ((di->kind & _odict_ITER_ITEMS) == _odict_ITER_ITEMS) {
Py_DECREF(di->di_result);
}
PyObject_GC_Del(di);
@@ -1914,15 +1915,16 @@ odictiter_new(PyODictObject *od, int kind)
if (di == NULL)
return NULL;
- if (kind & (_odict_ITER_KEYS | _odict_ITER_VALUES)){
+ if ((kind & _odict_ITER_ITEMS) == _odict_ITER_ITEMS) {
di->di_result = PyTuple_Pack(2, Py_None, Py_None);
if (di->di_result == NULL) {
Py_DECREF(di);
return NULL;
}
}
- else
+ else {
di->di_result = NULL;
+ }
di->kind = kind;
node = reversed ? _odict_LAST(od) : _odict_FIRST(od);