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| author | Antoine Pitrou <solipsis@pitrou.net> | 2011-08-20 12:15:03 (GMT) |
|---|---|---|
| committer | Antoine Pitrou <solipsis@pitrou.net> | 2011-08-20 12:15:03 (GMT) |
| commit | a370fcf3b2211242c888558237557eb4895391d0 (patch) | |
| tree | 4c52a9237332bc7b3e1e9d0eba8e84c878acd210 /Objects | |
| parent | 0c17d0d96e9684e29a731227452355da79b14b5b (diff) | |
| download | cpython-a370fcf3b2211242c888558237557eb4895391d0.zip cpython-a370fcf3b2211242c888558237557eb4895391d0.tar.gz cpython-a370fcf3b2211242c888558237557eb4895391d0.tar.bz2 | |
Issue #12791: Break reference cycles early when a generator exits with an exception.
Diffstat (limited to 'Objects')
| -rw-r--r-- | Objects/genobject.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Objects/genobject.c b/Objects/genobject.c index 3fa1b4e..01cd44a 100644 --- a/Objects/genobject.c +++ b/Objects/genobject.c @@ -100,6 +100,17 @@ gen_send_ex(PyGenObject *gen, PyObject *arg, int exc) if (!result || f->f_stacktop == NULL) { /* generator can't be rerun, so release the frame */ + /* first clean reference cycle through stored exception traceback */ + PyObject *t, *v, *tb; + t = f->f_exc_type; + v = f->f_exc_value; + tb = f->f_exc_traceback; + f->f_exc_type = NULL; + f->f_exc_value = NULL; + f->f_exc_traceback = NULL; + Py_XDECREF(t); + Py_XDECREF(v); + Py_XDECREF(tb); Py_DECREF(f); gen->gi_frame = NULL; } |