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gh-104078: Improve performance of PyObject_HasAttrString (#104079)

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Itamar Ostricher 2023-05-03 00:20:00 -07:00 committed by GitHub
parent fdb3ef8c0f
commit 8d34031068
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2 changed files with 18 additions and 6 deletions
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Misc/NEWS.d/next/Core and Builtins/2023-05-01-21-05-47.gh-issue-104078.vRaBsU.rst Normal file
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@ -0,0 +1 @@
Improve the performance of :c:func:`PyObject_HasAttrString`

23
Objects/object.c
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@ -918,13 +918,24 @@ PyObject_GetAttrString(PyObject *v, const char *name)
int
PyObject_HasAttrString(PyObject *v, const char *name)
{
PyObject *res = PyObject_GetAttrString(v, name);
if (res != NULL) {
Py_DECREF(res);
return 1;
if (Py_TYPE(v)->tp_getattr != NULL) {
PyObject *res = (*Py_TYPE(v)->tp_getattr)(v, (char*)name);
if (res != NULL) {
Py_DECREF(res);
return 1;
}
PyErr_Clear();
return 0;
}
PyErr_Clear();
return 0;
PyObject *attr_name = PyUnicode_FromString(name);
if (attr_name == NULL) {
PyErr_Clear();
return 0;
}
int ok = PyObject_HasAttr(v, attr_name);
Py_DECREF(attr_name);
return ok;
}
int