Issue #17810: Implement PEP 3154, pickle protocol 4.
Most of the work is by Alexandre.
diff --git a/Objects/classobject.c b/Objects/classobject.c
index 27f7ef4..272f575 100644
--- a/Objects/classobject.c
+++ b/Objects/classobject.c
@@ -69,6 +69,30 @@
return (PyObject *)im;
}
+static PyObject *
+method_reduce(PyMethodObject *im)
+{
+ PyObject *self = PyMethod_GET_SELF(im);
+ PyObject *func = PyMethod_GET_FUNCTION(im);
+ PyObject *builtins;
+ PyObject *getattr;
+ PyObject *funcname;
+ _Py_IDENTIFIER(getattr);
+
+ funcname = _PyObject_GetAttrId(func, &PyId___name__);
+ if (funcname == NULL) {
+ return NULL;
+ }
+ builtins = PyEval_GetBuiltins();
+ getattr = _PyDict_GetItemId(builtins, &PyId_getattr);
+ return Py_BuildValue("O(ON)", getattr, self, funcname);
+}
+
+static PyMethodDef method_methods[] = {
+ {"__reduce__", (PyCFunction)method_reduce, METH_NOARGS, NULL},
+ {NULL, NULL}
+};
+
/* Descriptors for PyMethod attributes */
/* im_func and im_self are stored in the PyMethod object */
@@ -367,7 +391,7 @@
offsetof(PyMethodObject, im_weakreflist), /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
- 0, /* tp_methods */
+ method_methods, /* tp_methods */
method_memberlist, /* tp_members */
method_getset, /* tp_getset */
0, /* tp_base */