func makeCFunction(name string, fn interface{}, doc string, mod_name *C.PyObject) (*CFunction, error) {
ml := C.newMethodDef()
switch fn.(type) {
case func() (Object, error):
C.set_call_noargs(&ml.ml_meth)
ml.ml_flags = C.METH_NOARGS
case func(a *Tuple) (Object, error):
C.set_call_args(&ml.ml_meth)
ml.ml_flags = C.METH_VARARGS
case func(a *Tuple, k *Dict) (Object, error):
C.set_call_keywords(&ml.ml_meth)
ml.ml_flags = C.METH_VARARGS | C.METH_KEYWORDS
default:
C.free(unsafe.Pointer(ml))
return nil, TypeError.Err("CFunction_New: unknown func type for %s", name)
}
ret := C.PyCFunction_NewEx(ml, saveFunc(fn), mod_name)
if ret == nil {
C.free(unsafe.Pointer(ml))
return nil, exception()
}
ml.ml_name = C.CString(name)
ml.ml_doc = C.CString(doc)
return newCFunction(ret), nil
}
func (closure *Closure) NewFunction(name string, nin int, doc string) *Base {
d := &closure.methodDef
d.ml_name = C.CString(name)
defer C.free(unsafe.Pointer(d.ml_name))
if C.setMethod(d, C.int(nin)) != 0 {
panic("Invalid arguments: nin")
}
if doc != "" {
d.ml_doc = C.CString(doc)
defer C.free(unsafe.Pointer(d.ml_doc))
}
ctx := uintptr(unsafe.Pointer(closure))
self := C.PyLong_FromLongLong(C.longlong(ctx))
defer C.decref(self)
f := C.PyCFunction_NewEx(d, self, nil)
return (*Base)(unsafe.Pointer(f))
}