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GH-128682: Change a couple of functions to only steal references on success. (GH-129132)

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Change PyTuple_FromStackRefSteal and PyList_FromStackRefSteal to only steal on success to avoid escaping
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Mark Shannon 2025-01-22 10:51:37 +00:00 • committed by GitHub
parent a65f802692
commit 470a0a68eb
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11 changed files with 34 additions and 32 deletions
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12
Python/bytecodes.c
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@ -1852,16 +1852,20 @@ dummy_func(
}
inst(BUILD_TUPLE, (values[oparg] -- tup)) {
PyObject *tup_o = _PyTuple_FromStackRefSteal(values, oparg);
PyObject *tup_o = _PyTuple_FromStackRefStealOnSuccess(values, oparg);
if (tup_o == NULL) {
ERROR_NO_POP();
}
INPUTS_DEAD();
ERROR_IF(tup_o == NULL, error);
tup = PyStackRef_FromPyObjectSteal(tup_o);
}
inst(BUILD_LIST, (values[oparg] -- list)) {
PyObject *list_o = _PyList_FromStackRefSteal(values, oparg);
PyObject *list_o = _PyList_FromStackRefStealOnSuccess(values, oparg);
if (list_o == NULL) {
ERROR_NO_POP();
}
INPUTS_DEAD();
ERROR_IF(list_o == NULL, error);
list = PyStackRef_FromPyObjectSteal(list_o);
}