Function scope_panic_propagate_from_spawn

src/scope.rs:1461–1469

()

    impl<T: Send> Tree<T> {
        fn iter(&self) -> vec::IntoIter<&T> {
            once(&self.value)
                .chain(self.children.iter().flat_map(Tree::iter))
                .collect::<Vec<_>>() // seems like it shouldn't be needed... but prevents overflow
                .into_iter()
        }

        fn update<OP>(&mut self, op: OP)
        where
            OP: Fn(&mut T) + Sync,
            T: Send,
        {
            scope(|scope| self.update_in_scope(scope, &op));