commit f02c3048dc2f22053a2ba56ef5987967b89c4be3
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Mon May 18 19:14:13 2020 -0700
committer GitHub <noreply@github.com> Tue May 19 04:14:13 2020 +0200
tree b6fec835404a6bfffdd80b101be6e829580f4969
parent 1bf757884a431e025ef5f1e84c34b3fbbbe5b792

Use _PyErr_ChainStackItem() inside gen_send_ex(). (GH-20173) (#20202)

_PyErr_ChainStackItem was just added in GH-19951 (for bpo-31033).
(cherry picked from commit ff7a8b03c49153021d6de5d0b2fa8b5163059ed6)

Co-authored-by: Chris Jerdonek <chris.jerdonek@gmail.com>

Co-authored-by: Chris Jerdonek <chris.jerdonek@gmail.com>

Objects/genobject.c

diff --git a/Objects/genobject.c b/Objects/genobject.c
index 40179cd..271720b 100644
--- a/Objects/genobject.c
+++ b/Objects/genobject.c
@@ -203,16 +203,8 @@
     assert(f->f_back == NULL);
     f->f_back = tstate->frame;
 
-    _PyErr_StackItem *gi_exc_state = &gen->gi_exc_state;
-    if (exc && gi_exc_state->exc_type != NULL &&
-        gi_exc_state->exc_type != Py_None)
-    {
-        Py_INCREF(gi_exc_state->exc_type);
-        Py_XINCREF(gi_exc_state->exc_value);
-        Py_XINCREF(gi_exc_state->exc_traceback);
-        _PyErr_ChainExceptions(gi_exc_state->exc_type,
-                               gi_exc_state->exc_value,
-                               gi_exc_state->exc_traceback);
+    if (exc) {
+        _PyErr_ChainStackItem(&gen->gi_exc_state);
     }
 
     gen->gi_running = 1;