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gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives #102743

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Merged
iritkatriel merged 5 commits into from
Mar 16, 2023
Merged

gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives #102743

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d220a9f
gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternat…
iritkatriel Mar 15, 2023
86af53f
flush_io too
iritkatriel Mar 15, 2023
4d2a362
remove redundant assert
iritkatriel Mar 15, 2023
0b538ce
fix copy-paste error
iritkatriel Mar 16, 2023
b089958
Merge remote-tracking branch 'upstream/main' into pythonrun
iritkatriel Mar 16, 2023
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gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternat… 
…ives
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@iritkatriel
iritkatriel committed Mar 15, 2023
commit d220a9ffe69ca8789e756da2e79caac1e5b79208
42 changes: 20 additions & 22 deletions Python/pythonrun.c
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Original file line number Diff line number Diff line change
Expand Up @@ -698,30 +698,31 @@ _Py_HandleSystemExit(int *exitcode_p)
return 0;
}

PyObject *exception, *value, *tb;
PyErr_Fetch(&exception, &value, &tb);

fflush(stdout);

int exitcode = 0;
if (value == NULL || value == Py_None) {

PyObject *exc = PyErr_GetRaisedException();
assert(exc != Py_None);
if (exc == NULL) {
goto done;
}

if (PyExceptionInstance_Check(value)) {
/* The error code should be in the `code' attribute. */
PyObject *code = PyObject_GetAttr(value, &_Py_ID(code));
if (code) {
Py_SETREF(value, code);
if (value == Py_None)
goto done;
assert(PyExceptionInstance_Check(exc));
/* The error code should be in the `code' attribute. */
PyObject *code = PyObject_GetAttr(exc, &_Py_ID(code));
if (code) {
Py_SETREF(exc, code);
if (exc == Py_None) {
goto done;
}
/* If we failed to dig out the 'code' attribute,
just let the else clause below print the error. */
}
/* If we failed to dig out the 'code' attribute,
* just let the else clause below print the error.
*/

if (PyLong_Check(value)) {
exitcode = (int)PyLong_AsLong(value);
if (PyLong_Check(exc)) {
exitcode = (int)PyLong_AsLong(exc);
}
else {
PyThreadState *tstate = _PyThreadState_GET();
Expand All @@ -732,20 +733,17 @@ _Py_HandleSystemExit(int *exitcode_p)
*/
PyErr_Clear();
if (sys_stderr != NULL && sys_stderr != Py_None) {
PyFile_WriteObject(value, sys_stderr, Py_PRINT_RAW);
PyFile_WriteObject(exc, sys_stderr, Py_PRINT_RAW);
} else {
PyObject_Print(value, stderr, Py_PRINT_RAW);
PyObject_Print(exc, stderr, Py_PRINT_RAW);
fflush(stderr);
}
PySys_WriteStderr("\n");
exitcode = 1;
}

done:
/* Cleanup the exception */
Py_CLEAR(exception);
Py_CLEAR(value);
Py_CLEAR(tb);
done:
Py_CLEAR(exc);
*exitcode_p = exitcode;
return 1;
}
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