bpo-35879: Fix type comment leaks (GH-11728)
* Fix leak for # type: ignore
* Fix the type comment leak
diff --git a/Python/ast.c b/Python/ast.c
index c422e96..45578a8 100644
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -699,11 +699,16 @@
*/
static string
-new_type_comment(const char *s)
+new_type_comment(const char *s, struct compiling *c)
{
- return PyUnicode_DecodeUTF8(s, strlen(s), NULL);
+ PyObject *res = PyUnicode_DecodeUTF8(s, strlen(s), NULL);
+ if (PyArena_AddPyObject(c->c_arena, res) < 0) {
+ Py_DECREF(res);
+ return NULL;
+ }
+ return res;
}
-#define NEW_TYPE_COMMENT(n) new_type_comment(STR(n))
+#define NEW_TYPE_COMMENT(n) new_type_comment(STR(n), c)
static int
num_stmts(const node *n)