}
#[allow(dead_code)]
fn clone_ref(&mut self) -> Option<NAFrameRef> {
- if let None = self.lastframe { return None; }
if let Some(ref mut frm) = self.lastframe {
let newfrm = Rc::new(RefCell::new(NAFrame::from_copy(&frm.borrow())));
*frm = newfrm.clone();
Some(newfrm)
- } else { None }
+ } else {
+ None
+ }
}
#[allow(dead_code)]
fn get_output_frame(&mut self) -> Option<NAFrameRef> {