Clear references to names in method cache in _PyType_Fini.

markshannon · markshannon · commit 3850ef2a3eab · 2021-08-15T18:29:28.000+01:00
diff --git a/Objects/typeobject.c b/Objects/typeobject.c
@@ -296,7 +296,10 @@ PyType_ClearCache(void)
 void
 _PyType_Fini(PyInterpreterState *interp)
 {
-    _PyType_ClearCache(interp);
+    struct type_cache *cache = &interp->type_cache;
+    for (Py_ssize_t i = 0; i < (1 << MCACHE_SIZE_EXP); i++) {
+        Py_DECREF(cache->hashtable[i].name);
+    }
     if (_Py_IsMainInterpreter(interp)) {
         clear_slotdefs();
     }

Original file line number	Diff line number	Diff line change
`@@ -296,7 +296,10 @@ PyType_ClearCache(void)`
`296`	`296`	`void`
`297`	`297`	`_PyType_Fini(PyInterpreterState *interp)`
`298`	`298`	`{`
`299`		`- _PyType_ClearCache(interp);`
	`299`	`+ struct type_cache *cache = &interp->type_cache;`
	`300`	`+ for (Py_ssize_t i = 0; i < (1 << MCACHE_SIZE_EXP); i++) {`
	`301`	`+ Py_DECREF(cache->hashtable[i].name);`
	`302`	`+ }`
`300`	`303`	`if (_Py_IsMainInterpreter(interp)) {`
`301`	`304`	`clear_slotdefs();`
`302`	`305`	`}`