commit 632e8a69593efb12ec58d90e624ddf249a7a1b65
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Fri Jul 23 07:56:53 2021 -0700
committer GitHub <noreply@github.com> Fri Jul 23 16:56:53 2021 +0200
tree 739d6918692a728fa791c61586b3d9f6bcc668f1
parent c589992e09d0db7cb47d21d5948929e599fdbb94

bpo-42747: Remove Py_TPFLAGS_HAVE_AM_SEND and make Py_TPFLAGS_HAVE_VERSION_TAG no-op (GH-27260) (GH-27306)

* Remove code that checks Py_TPFLAGS_HAVE_VERSION_TAG

    The field is always present in the type struct, as explained
    in the added comment.

* Remove Py_TPFLAGS_HAVE_AM_SEND

    The flag is not needed, and since it was added in 3.10 it can be removed now.
(cherry picked from commit a4760cc32d9e5dac7be262e9736eb30502cd7be3)

Co-authored-by: Petr Viktorin <encukou@gmail.com>

Objects/abstract.c

diff --git a/Objects/abstract.c b/Objects/abstract.c
index f14a923..842c367 100644
--- a/Objects/abstract.c
+++ b/Objects/abstract.c
@@ -2804,9 +2804,7 @@ PyIter_Send(PyObject *iter, PyObject *arg, PyObject **result)
     _Py_IDENTIFIER(send);
     assert(arg != NULL);
     assert(result != NULL);
-    if (PyType_HasFeature(Py_TYPE(iter), Py_TPFLAGS_HAVE_AM_SEND)) {
-        assert (Py_TYPE(iter)->tp_as_async != NULL);
-        assert (Py_TYPE(iter)->tp_as_async->am_send != NULL);
+    if (Py_TYPE(iter)->tp_as_async && Py_TYPE(iter)->tp_as_async->am_send) {
         PySendResult res = Py_TYPE(iter)->tp_as_async->am_send(iter, arg, result);
         assert(_Py_CheckSlotResult(iter, "am_send", res != PYGEN_ERROR));
         return res;