strong & weak widgets

src/widget/position/stack.rs

@@ -55,7 +55,7 @@ impl<const LEN: usize, Wa: WidgetArrLike<LEN, Tag>, Tag> FnOnce<(&mut Ui,)>
 
     extern "rust-call" fn call_once(self, args: (&mut Ui,)) -> Self::Output {
         Stack {
-            children: self.children.ui(args.0).arr.to_vec(),
+            children: self.children.ui(args.0).arr.into_iter().collect(),
             size: self.size,
         }
     }