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bpo-40523: Add pass-throughs for hash() and reversed() to weakref.proxy objects (GH-19946)

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Pablo Galindo 2020-05-05 22:58:19 +01:00 • committed by GitHub
parent 1253c3ef70
commit 96074de573
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3 changed files with 40 additions and 1 deletions
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19
Objects/weakrefobject.c
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@ -665,10 +665,12 @@ proxy_iternext(PyWeakReference *proxy)
WRAP_METHOD(proxy_bytes, __bytes__)
WRAP_METHOD(proxy_reversed, __reversed__)
static PyMethodDef proxy_methods[] = {
{"__bytes__", proxy_bytes, METH_NOARGS},
{"__reversed__", proxy_reversed, METH_NOARGS},
{NULL, NULL}
};
@ -730,6 +732,21 @@ static PyMappingMethods proxy_as_mapping = {
};
static Py_hash_t
proxy_hash(PyObject *self)
{
PyWeakReference *proxy = (PyWeakReference *)self;
if (!proxy_checkref(proxy)) {
return -1;
}
PyObject *obj = PyWeakref_GET_OBJECT(proxy);
Py_INCREF(obj);
Py_hash_t res = PyObject_Hash(obj);
Py_DECREF(obj);
return res;
}
PyTypeObject
_PyWeakref_ProxyType = {
PyVarObject_HEAD_INIT(&PyType_Type, 0)
@ -746,7 +763,7 @@ _PyWeakref_ProxyType = {
&proxy_as_number, /* tp_as_number */
&proxy_as_sequence, /* tp_as_sequence */
&proxy_as_mapping, /* tp_as_mapping */
0, /* tp_hash */
proxy_hash, /* tp_hash */
0, /* tp_call */
proxy_str, /* tp_str */
proxy_getattr, /* tp_getattro */