Expose dict_contains() and PyDict_Contains() with is about 10% faster
than PySequence_Contains() and more clearly applicable to dicts.
Apply the new function in setobject.c where __contains__ checking is
ubiquitous.
diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index 5d22404..0cf71b5 100644
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -1814,10 +1814,11 @@
{NULL, NULL} /* sentinel */
};
-static int
-dict_contains(dictobject *mp, PyObject *key)
+int
+PyDict_Contains(PyObject *op, PyObject *key)
{
long hash;
+ dictobject *mp = (dictobject *)op;
if (!PyString_CheckExact(key) ||
(hash = ((PyStringObject *) key)->ob_shash) == -1) {
@@ -1837,7 +1838,7 @@
0, /* sq_slice */
0, /* sq_ass_item */
0, /* sq_ass_slice */
- (objobjproc)dict_contains, /* sq_contains */
+ (objobjproc)PyDict_Contains, /* sq_contains */
0, /* sq_inplace_concat */
0, /* sq_inplace_repeat */
};