bpo-41870: Use PEP 590 vectorcall to speed up bool() (GH-22427)
* bpo-41870: Use PEP 590 vectorcall to speed up bool()
* bpo-41870: Add NEWS.d
diff --git a/Objects/boolobject.c b/Objects/boolobject.c
index 720835b..ab7669c 100644
--- a/Objects/boolobject.c
+++ b/Objects/boolobject.c
@@ -55,6 +55,30 @@
return PyBool_FromLong(ok);
}
+static PyObject *
+bool_vectorcall(PyObject *type, PyObject * const*args,
+ size_t nargsf, PyObject *kwnames)
+{
+ long ok = 0;
+ if (!_PyArg_NoKwnames("bool", kwnames)) {
+ return NULL;
+ }
+
+ Py_ssize_t nargs = PyVectorcall_NARGS(nargsf);
+ if (!_PyArg_CheckPositional("bool", nargs, 0, 1)) {
+ return NULL;
+ }
+
+ assert(PyType_Check(type));
+ if (nargs) {
+ ok = PyObject_IsTrue(args[0]);
+ }
+ if (ok < 0) {
+ return NULL;
+ }
+ return PyBool_FromLong(ok);
+}
+
/* Arithmetic operations redefined to return bool if both args are bool. */
static PyObject *
@@ -170,6 +194,7 @@
0, /* tp_init */
0, /* tp_alloc */
bool_new, /* tp_new */
+ .tp_vectorcall = bool_vectorcall,
};
/* The objects representing bool values False and True */