diff options
Diffstat (limited to 'Python/Python-ast.c')
| -rw-r--r-- | Python/Python-ast.c | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/Python/Python-ast.c b/Python/Python-ast.c index df035568f84..660bc598a48 100644 --- a/Python/Python-ast.c +++ b/Python/Python-ast.c @@ -5528,6 +5528,32 @@ ast_type_replace_check(PyObject *self, Py_DECREF(unused); } } + + // Discard fields from 'expecting' that default to None + PyObject *field_types = NULL; + if (PyObject_GetOptionalAttr((PyObject*)Py_TYPE(self), + &_Py_ID(_field_types), + &field_types) < 0) + { + Py_DECREF(expecting); + return -1; + } + if (field_types != NULL) { + Py_ssize_t pos = 0; + PyObject *field_name, *field_type; + while (PyDict_Next(field_types, &pos, &field_name, &field_type)) { + if (_PyUnion_Check(field_type)) { + // optional field + if (PySet_Discard(expecting, field_name) < 0) { + Py_DECREF(expecting); + Py_DECREF(field_types); + return -1; + } + } + } + Py_DECREF(field_types); + } + // Now 'expecting' contains the fields or attributes // that would not be filled inside ast_type_replace(). Py_ssize_t m = PySet_GET_SIZE(expecting); @@ -5770,7 +5796,7 @@ ast_repr_list(PyObject *list, int depth) for (Py_ssize_t i = 0; i < Py_MIN(length, 2); i++) { if (i > 0) { - if (PyUnicodeWriter_WriteUTF8(writer, ", ", 2) < 0) { + if (PyUnicodeWriter_WriteASCII(writer, ", ", 2) < 0) { goto error; } } @@ -5794,7 +5820,7 @@ ast_repr_list(PyObject *list, int depth) } if (i == 0 && length > 2) { - if (PyUnicodeWriter_WriteUTF8(writer, ", ...", 5) < 0) { + if (PyUnicodeWriter_WriteASCII(writer, ", ...", 5) < 0) { goto error; } } @@ -5898,7 +5924,7 @@ ast_repr_max_depth(AST_object *self, int depth) } if (i > 0) { - if (PyUnicodeWriter_WriteUTF8(writer, ", ", 2) < 0) { + if (PyUnicodeWriter_WriteASCII(writer, ", ", 2) < 0) { Py_DECREF(name); Py_DECREF(value_repr); goto error; |