bpo-36817: Fix reference leak for expr_text in f-string = parsing (GH-13249)
diff --git a/Python/ast.c b/Python/ast.c
index 21abd7e..585f8b3 100644
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -5228,10 +5228,15 @@
}
if (equal_flag) {
- Py_ssize_t len = expr_text_end-expr_start;
+ Py_ssize_t len = expr_text_end - expr_start;
expr_text = PyUnicode_FromStringAndSize(expr_start, len);
- if (!expr_text)
+ if (!expr_text) {
goto error;
+ }
+ if (PyArena_AddPyObject(c->c_arena, expr_text) < 0) {
+ Py_DECREF(expr_text);
+ goto error;
+ }
}
/* Check for the format spec, if present. */