Issue #20186: Converted builtins enumerate() and reversed() to Argument Clinic.
Patch by Tal Einat.
diff --git a/Objects/clinic/enumobject.c.h b/Objects/clinic/enumobject.c.h
new file mode 100644
index 0000000..0f05cf8
--- /dev/null
+++ b/Objects/clinic/enumobject.c.h
@@ -0,0 +1,71 @@
+/*[clinic input]
+preserve
+[clinic start generated code]*/
+
+PyDoc_STRVAR(enum_new__doc__,
+"enumerate(iterable, start=0)\n"
+"--\n"
+"\n"
+"Return an enumerate object.\n"
+"\n"
+" iterable\n"
+" an object supporting iteration\n"
+"\n"
+"The enumerate object yields pairs containing a count (from start, which\n"
+"defaults to zero) and a value yielded by the iterable argument.\n"
+"\n"
+"enumerate is useful for obtaining an indexed list:\n"
+" (0, seq[0]), (1, seq[1]), (2, seq[2]), ...");
+
+static PyObject *
+enum_new_impl(PyTypeObject *type, PyObject *iterable, PyObject *start);
+
+static PyObject *
+enum_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
+{
+ PyObject *return_value = NULL;
+ static const char * const _keywords[] = {"iterable", "start", NULL};
+ static _PyArg_Parser _parser = {"O|O:enumerate", _keywords, 0};
+ PyObject *iterable;
+ PyObject *start = 0;
+
+ if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
+ &iterable, &start)) {
+ goto exit;
+ }
+ return_value = enum_new_impl(type, iterable, start);
+
+exit:
+ return return_value;
+}
+
+PyDoc_STRVAR(reversed_new__doc__,
+"reversed(sequence, /)\n"
+"--\n"
+"\n"
+"Return a reverse iterator over the values of the given sequence.");
+
+static PyObject *
+reversed_new_impl(PyTypeObject *type, PyObject *seq);
+
+static PyObject *
+reversed_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
+{
+ PyObject *return_value = NULL;
+ PyObject *seq;
+
+ if ((type == &PyReversed_Type) &&
+ !_PyArg_NoKeywords("reversed", kwargs)) {
+ goto exit;
+ }
+ if (!PyArg_UnpackTuple(args, "reversed",
+ 1, 1,
+ &seq)) {
+ goto exit;
+ }
+ return_value = reversed_new_impl(type, seq);
+
+exit:
+ return return_value;
+}
+/*[clinic end generated code: output=9008c36999c57218 input=a9049054013a1b77]*/