40 bytes on the stack. */

#define _PY_FASTCALL_SMALL_STACK 5

/* Return 1 if callable supports FASTCALL calling convention for positional

arguments: see _PyObject_Vectorcall() and _PyObject_FastCallDict() */

PyAPI_FUNC(int) _PyObject_HasFastCall(PyObject *callable);

PyAPI_FUNC(PyObject *) _Py_CheckFunctionResult(PyObject *callable,

PyObject *result,

const char *where);

return NULL;

}

pto->use_fastcall = _PyObject_HasFastCall(func);

pto->use_fastcall = (_PyVectorcall_Function(func) != NULL);

return (PyObject *)pto;

}

Py_INCREF(dict);

Py_INCREF(fn);

pto->use_fastcall = _PyObject_HasFastCall(fn);

pto->use_fastcall = (_PyVectorcall_Function(fn) != NULL);

Py_SETREF(pto->fn, fn);

Py_SETREF(pto->args, fnargs);

Py_SETREF(pto->kw, kw);

cfunction_call_varargs(PyObject *func, PyObject *args, PyObject *kwargs);

int

_PyObject_HasFastCall(PyObject *callable)

{

if (PyFunction_Check(callable)) {

return 1;

}

else if (PyCFunction_Check(callable)) {

return !(PyCFunction_GET_FLAGS(callable) & METH_VARARGS);

}

else {

assert (PyCallable_Check(callable));

return 0;

}

}

static PyObject *

null_error(void)

{