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prevert ast errors from being normalized before ast_error_finish is called (closes #15846)

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Benjamin Peterson 2012-09-02 14:23:15 -04:00
parent 1c371b255f
commit 2e2c903700
3 changed files with 17 additions and 0 deletions
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8
Python/ast.c
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@ -92,7 +92,15 @@ ast_error(const node *n, const char *errstr)
PyObject *u = Py_BuildValue("zii", errstr, LINENO(n), n->n_col_offset);
if (!u)
return 0;
/*
* Prevent the error from being chained. PyErr_SetObject will normalize the
* exception in order to chain it. ast_error_finish, however, requires the
* error not to be normalized.
*/
PyObject *save = PyThreadState_GET()->exc_value;
PyThreadState_GET()->exc_value = NULL;
PyErr_SetObject(PyExc_SyntaxError, u);
PyThreadState_GET()->exc_value = save;
Py_DECREF(u);
return 0;
}