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Another modest speedup in PyObject_GenericGetAttr(): inline the call 

to _PyType_Lookup().
This commit is contained in:
Guido van Rossum 2002-08-19 19:22:50 +00:00
parent 492b46f29e
commit 056fbf422d
1 changed files with 26 additions and 2 deletions
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28
Objects/object.c
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@ -1289,7 +1289,7 @@ PyObject *
PyObject_GenericGetAttr(PyObject *obj, PyObject *name)
{
PyTypeObject *tp = obj->ob_type;
PyObject *descr;
PyObject *descr = NULL;
PyObject *res = NULL;
descrgetfunc f;
long dictoffset;
@ -1321,7 +1321,31 @@ PyObject_GenericGetAttr(PyObject *obj, PyObject *name)
goto done;
}
descr = _PyType_Lookup(tp, name);
/* Inline _PyType_Lookup */
{
int i, n;
PyObject *mro, *base, *dict;
/* Look in tp_dict of types in MRO */
mro = tp->tp_mro;
assert(mro != NULL);
assert(PyTuple_Check(mro));
n = PyTuple_GET_SIZE(mro);
for (i = 0; i < n; i++) {
base = PyTuple_GET_ITEM(mro, i);
if (PyClass_Check(base))
dict = ((PyClassObject *)base)->cl_dict;
else {
assert(PyType_Check(base));
dict = ((PyTypeObject *)base)->tp_dict;
}
assert(dict && PyDict_Check(dict));
descr = PyDict_GetItem(dict, name);
if (descr != NULL)
break;
}
}
f = NULL;
if (descr != NULL) {
f = descr->ob_type->tp_descr_get;