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gh-104252: Immortalize Py_EMPTY_KEYS #104253

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Merged
ericsnowcurrently merged 10 commits into from
May 10, 2023
Merged

gh-104252: Immortalize Py_EMPTY_KEYS #104253

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5bc2469
Factor out _dict_state_INIT.
ericsnowcurrently May 6, 2023
e472d94
Immortalize Py_EMPTY_KEYS.
ericsnowcurrently May 6, 2023
87351e0
Handle other uses of dk_refcnt.
ericsnowcurrently May 8, 2023
f5da088
Add a note.
ericsnowcurrently May 8, 2023
db8612f
Drop an old line.
ericsnowcurrently May 8, 2023
58585a9
Drop an unnecessary condition.
ericsnowcurrently May 8, 2023
6b5c952
Drop an unnecessary assert.
ericsnowcurrently May 9, 2023
bdbce5f
Do not bother inc/dec-refing Py_EMPTY_KEYS.
ericsnowcurrently May 9, 2023
aab493a
Do not update Py_Reftotal for Py_EMPTY_KEYS.
ericsnowcurrently May 9, 2023
5aabfd7
Clarify the comment about dictkeys_incref() and dictkeys_decref().
ericsnowcurrently May 9, 2023
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Do not bother inc/dec-refing Py_EMPTY_KEYS.
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@ericsnowcurrently
ericsnowcurrently committed May 9, 2023
commit bdbce5f693ffdb40e5887e600a1422a98b89ce69
4 changes: 2 additions & 2 deletions Objects/dictobject.c
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Original file line number Diff line number Diff line change
Expand Up @@ -846,7 +846,7 @@ PyObject *
PyDict_New(void)
{
PyInterpreterState *interp = _PyInterpreterState_GET();
dictkeys_incref(Py_EMPTY_KEYS);
/* We don't incref Py_EMPTY_KEYS here because it is immortal. */
return new_dict(interp, Py_EMPTY_KEYS, NULL, 0, 0);
}

Expand Down Expand Up @@ -1344,7 +1344,7 @@ insert_to_emptydict(PyInterpreterState *interp, PyDictObject *mp,
Py_DECREF(value);
return -1;
}
dictkeys_decref(interp, Py_EMPTY_KEYS);
/* We don't decref Py_EMPTY_KEYS here because it is immortal. */
mp->ma_keys = newkeys;
mp->ma_values = NULL;

Expand Down