Return a new reference from tuple_get_empty().

ericsnowcurrently · ericsnowcurrently · commit efed1d149c6c · 2022-02-23T14:29:24.000-07:00
diff --git a/Objects/tupleobject.c b/Objects/tupleobject.c
@@ -98,7 +98,7 @@ tuple_alloc(Py_ssize_t size)
 static inline PyObject *
 tuple_get_empty(void)
 {
-    return (PyObject *)&_Py_SINGLETON(tuple_empty);
+    return _Py_NewRef((PyObject *)&_Py_SINGLETON(tuple_empty));
 }
 
 
@@ -223,7 +223,7 @@ static void
 tupledealloc(PyTupleObject *op)
 {
     /* The empty tuple is statically allocated. */
-    if ((PyObject *)op == tuple_get_empty()) {
+    if (op == &_Py_SINGLETON(tuple_empty)) {
         return;
     }
     Py_ssize_t len = Py_SIZE(op);

Original file line number	Diff line number	Diff line change
`@@ -98,7 +98,7 @@ tuple_alloc(Py_ssize_t size)`
`98`	`98`	`static inline PyObject *`
`99`	`99`	`tuple_get_empty(void)`
`100`	`100`	`{`
`101`		`- return (PyObject *)&_Py_SINGLETON(tuple_empty);`
	`101`	`+ return _Py_NewRef((PyObject *)&_Py_SINGLETON(tuple_empty));`
`102`	`102`	`}`
`103`	`103`
`104`	`104`
`@@ -223,7 +223,7 @@ static void`
`223`	`223`	`tupledealloc(PyTupleObject *op)`
`224`	`224`	`{`
`225`	`225`	`/* The empty tuple is statically allocated. */`
`226`		`- if ((PyObject *)op == tuple_get_empty()) {`
	`226`	`+ if (op == &_Py_SINGLETON(tuple_empty)) {`
`227`	`227`	`return;`
`228`	`228`	`}`
`229`	`229`	`Py_ssize_t len = Py_SIZE(op);`