add assert for gil build

xuantengh · xuantengh · commit fd1fa03903b2 · 2025-06-29T10:37:45.000+08:00
diff --git a/Include/internal/pycore_weakref.h b/Include/internal/pycore_weakref.h
@@ -45,6 +45,7 @@ extern "C" {
 
 #define FT_CLEAR_WEAKREFS(obj, weakref_list)        \
     do {                                            \
+        assert(Py_REFCNT(obj) == 0);                \
         if (weakref_list != NULL) {                 \
             PyObject_ClearWeakRefs(obj);            \
         }                                           \
diff --git a/Objects/classobject.c b/Objects/classobject.c
@@ -7,7 +7,7 @@
 #include "pycore_object.h"
 #include "pycore_pyerrors.h"
 #include "pycore_pystate.h"       // _PyThreadState_GET()
-#include "pycore_weakref.h"
+#include "pycore_weakref.h"       // FT_CLEAR_WEAKREFS()
 
 
 #include "clinic/classobject.c.h"
