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GH-101578: Normalize the current exception (GH-101607)

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* Make sure that the current exception is always normalized.

* Remove redundant type and traceback fields for the current exception.

* Add new API functions: PyErr_GetRaisedException, PyErr_SetRaisedException

* Add new API functions: PyException_GetArgs, PyException_SetArgs
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Mark Shannon 2023-02-08 09:31:12 +00:00 • committed by GitHub
parent 027adf42cd
commit feec49c407
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29 changed files with 477 additions and 172 deletions
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11
Include/internal/pycore_pyerrors.h
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@ -20,7 +20,10 @@ extern void _PyErr_FiniTypes(PyInterpreterState *);
static inline PyObject* _PyErr_Occurred(PyThreadState *tstate)
{
assert(tstate != NULL);
return tstate->curexc_type;
if (tstate->current_exception == NULL) {
return NULL;
}
return (PyObject *)Py_TYPE(tstate->current_exception);
}
static inline void _PyErr_ClearExcState(_PyErr_StackItem *exc_state)
@ -37,10 +40,16 @@ PyAPI_FUNC(void) _PyErr_Fetch(
PyObject **value,
PyObject **traceback);
extern PyObject *
_PyErr_GetRaisedException(PyThreadState *tstate);
PyAPI_FUNC(int) _PyErr_ExceptionMatches(
PyThreadState *tstate,
PyObject *exc);
void
_PyErr_SetRaisedException(PyThreadState *tstate, PyObject *exc);
PyAPI_FUNC(void) _PyErr_Restore(
PyThreadState *tstate,
PyObject *type,