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| author |   kj <28750310+Fidget-Spinner@users.noreply.github.com> | 2020-11-16 11:27:23 +0800 |
|---|---|---|
| committer |   GitHub <noreply@github.com> | 2020-11-15 19:27:23 -0800 |
| commit | 384b7a4bd988986bca227c7e85c32d766da74708 (patch) | |
| tree | dbcb20fceb8d8e1f7e619b4007722b928c29c389 /Objects | |
| parent | More updates to the descriptor howto guide (GH-23238) (diff) | |
| download | cpython-384b7a4bd988986bca227c7e85c32d766da74708.tar.gz cpython-384b7a4bd988986bca227c7e85c32d766da74708.tar.bz2 cpython-384b7a4bd988986bca227c7e85c32d766da74708.zip | |
bpo-42332: Add weakref slot to types.GenericAlias (GH-23250)
Automerge-Triggered-By: GH:gvanrossum
Diffstat (limited to 'Objects')
| -rw-r--r-- | Objects/genericaliasobject.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Objects/genericaliasobject.c b/Objects/genericaliasobject.c index 28ea487a44f..6102e05c165 100644 --- a/Objects/genericaliasobject.c +++ b/Objects/genericaliasobject.c @@ -10,6 +10,7 @@ typedef struct { PyObject *origin; PyObject *args; PyObject *parameters; + PyObject* weakreflist; } gaobject; static void @@ -18,6 +19,9 @@ ga_dealloc(PyObject *self) gaobject *alias = (gaobject *)self; _PyObject_GC_UNTRACK(self); + if (alias->weakreflist != NULL) { + PyObject_ClearWeakRefs((PyObject *)alias); + } Py_XDECREF(alias->origin); Py_XDECREF(alias->args); Py_XDECREF(alias->parameters); @@ -599,6 +603,7 @@ PyTypeObject Py_GenericAliasType = { .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, .tp_traverse = ga_traverse, .tp_richcompare = ga_richcompare, + .tp_weaklistoffset = offsetof(gaobject, weakreflist), .tp_methods = ga_methods, .tp_members = ga_members, .tp_alloc = PyType_GenericAlloc, @@ -630,6 +635,7 @@ Py_GenericAlias(PyObject *origin, PyObject *args) alias->origin = origin; alias->args = args; alias->parameters = NULL; + alias->weakreflist = NULL; _PyObject_GC_TRACK(alias); return (PyObject *)alias; } |