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[3.13] gh-134411: assert PyLong_FromLong(x) != NULL when x is known to be small (GH-134415) (#136911)

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gh-134411: assert `PyLong_FromLong(x) != NULL` when `x` is known to be small (GH-134415)

Since `PyLong_From Long(PY_MONITORING_DEBUGGER_ID)` falls to `small_int` case and can't return `NULL`. Added `assert`s for extra confidence.
https://github.com/python/cpython/issues/134411#issuecomment-2897653868
(cherry picked from commit cf19b6435d)

Co-authored-by: Sergey Muraviov <smurav@mail.ru>
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Miss Islington (bot) 2025-07-21 11:21:30 +02:00 • committed by GitHub
parent 3ee46ccb6a
commit f2f30c4947
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Python/instrumentation.c
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@ -2448,18 +2448,22 @@ PyObject *_Py_CreateMonitoringObject(void)
err = PyObject_SetAttrString(events, "NO_EVENTS", _PyLong_GetZero()); err = PyObject_SetAttrString(events, "NO_EVENTS", _PyLong_GetZero());
if (err) goto error; if (err) goto error;
PyObject *val = PyLong_FromLong(PY_MONITORING_DEBUGGER_ID); PyObject *val = PyLong_FromLong(PY_MONITORING_DEBUGGER_ID);
assert(val != NULL); /* Can't return NULL because the int is small. */
err = PyObject_SetAttrString(mod, "DEBUGGER_ID", val); err = PyObject_SetAttrString(mod, "DEBUGGER_ID", val);
Py_DECREF(val); Py_DECREF(val);
if (err) goto error; if (err) goto error;
val = PyLong_FromLong(PY_MONITORING_COVERAGE_ID); val = PyLong_FromLong(PY_MONITORING_COVERAGE_ID);
assert(val != NULL);
err = PyObject_SetAttrString(mod, "COVERAGE_ID", val); err = PyObject_SetAttrString(mod, "COVERAGE_ID", val);
Py_DECREF(val); Py_DECREF(val);
if (err) goto error; if (err) goto error;
val = PyLong_FromLong(PY_MONITORING_PROFILER_ID); val = PyLong_FromLong(PY_MONITORING_PROFILER_ID);
assert(val != NULL);
err = PyObject_SetAttrString(mod, "PROFILER_ID", val); err = PyObject_SetAttrString(mod, "PROFILER_ID", val);
Py_DECREF(val); Py_DECREF(val);
if (err) goto error; if (err) goto error;
val = PyLong_FromLong(PY_MONITORING_OPTIMIZER_ID); val = PyLong_FromLong(PY_MONITORING_OPTIMIZER_ID);
assert(val != NULL);
err = PyObject_SetAttrString(mod, "OPTIMIZER_ID", val); err = PyObject_SetAttrString(mod, "OPTIMIZER_ID", val);
Py_DECREF(val); Py_DECREF(val);
if (err) goto error; if (err) goto error;