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@@ -261,49 +261,56 @@ impl<'a> DynamicallyBorrowedTree<'a> {
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mutable: impl IntoIterator<Item = TypeId>,
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mut f: impl FnMut(TreeStateView),
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) {
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- let node_data = self.node_slab();
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- let nodes = FxHashMap::default();
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+ let nodes_data = self.node_slab();
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+ let nodes_data: &SlabStorage<Node> = &*nodes_data;
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+ let mut nodes = FxHashMap::default();
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+ for id in immutable {
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+ nodes.insert(id, MaybeRead::Read(self.nodes.get_slab(id).unwrap()));
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+ }
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+ for id in mutable {
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+ nodes.insert(id, MaybeRead::Write(self.nodes.get_slab_mut(id).unwrap()));
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+ }
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{
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let mut view = TreeStateView {
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root: self.root,
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- nodes_data: &*node_data,
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+ nodes_data,
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nodes,
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};
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f(view)
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}
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}
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- fn node_slab(&self) -> MappedRwLockReadGuard<'_, SlabStorage<Node>> {
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+ fn node_slab<'b>(&'b self) -> MappedRwLockReadGuard<'b, SlabStorage<Node>> {
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RwLockReadGuard::map(self.nodes.get_slab(TypeId::of::<Node>()).unwrap(), |slab| {
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slab.as_any().downcast_ref().unwrap()
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})
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}
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}
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-enum MaybeRead<'a> {
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- Read(&'a Box<dyn AnySlabStorageImpl>),
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- Write(&'a mut Box<dyn AnySlabStorageImpl>),
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+enum MaybeRead<'a, 'b> {
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+ Read(RwLockReadGuard<'a, &'b mut dyn AnySlabStorageImpl>),
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+ Write(RwLockWriteGuard<'a, &'b mut dyn AnySlabStorageImpl>),
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}
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#[derive(Clone, Copy)]
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-pub struct TreeStateViewEntry<'a> {
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- view: &'a TreeStateView<'a>,
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+pub struct TreeStateViewEntry<'a, 'b> {
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+ view: &'a TreeStateView<'a, 'b>,
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id: NodeId,
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}
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-impl<'a> AnyMapLike<'a> for TreeStateViewEntry<'a> {
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+impl<'a, 'b> AnyMapLike<'a> for TreeStateViewEntry<'a, 'b> {
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fn get<T: Any>(self) -> Option<&'a T> {
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self.view.get_slab().and_then(|slab| slab.get(self.id))
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}
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}
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-pub struct TreeStateView<'a> {
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+pub struct TreeStateView<'a, 'b> {
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nodes_data: &'a SlabStorage<Node>,
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- nodes: FxHashMap<TypeId, MaybeRead<'a>>,
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+ nodes: FxHashMap<TypeId, MaybeRead<'a, 'b>>,
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root: NodeId,
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}
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-impl<'a> TreeStateView<'a> {
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+impl<'a, 'b> TreeStateView<'a, 'b> {
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fn get_slab<T: Any>(&self) -> Option<&SlabStorage<T>> {
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self.nodes
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.get(&TypeId::of::<T>())
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@@ -350,7 +357,7 @@ impl<'a> TreeStateView<'a> {
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self.get_slab_mut().and_then(|slab| slab.get_mut(id))
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}
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- pub fn entry(&self, id: NodeId) -> TreeStateViewEntry<'_> {
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+ pub fn entry(&self, id: NodeId) -> TreeStateViewEntry<'_, 'b> {
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TreeStateViewEntry { view: self, id }
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}
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@@ -527,62 +534,35 @@ fn deletion() {
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assert_eq!(tree.read::<i32>(after), None);
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}
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-#[test]
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-fn traverse_depth_first() {
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- let mut tree = Tree::new();
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- let parent = tree.root();
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- tree.insert(parent, 0);
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- let mut child1 = tree.create_node();
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- child1.insert(1);
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- let child1 = child1.id();
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- tree.add_child(parent, child1);
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- let mut grandchild1 = tree.create_node();
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- grandchild1.insert(2);
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- let grandchild1 = grandchild1.id();
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- tree.add_child(child1, grandchild1);
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- let mut child2 = tree.create_node();
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- child2.insert(3);
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- let child2 = child2.id();
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- tree.add_child(parent, child2);
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- let mut grandchild2 = tree.create_node();
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- grandchild2.insert(4);
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- let grandchild2 = grandchild2.id();
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- tree.add_child(child2, grandchild2);
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-
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- let view = tree.state_view::<i32>();
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- let mut node_count = 0;
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- view.traverse_depth_first(move |node| {
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- assert_eq!(*node, node_count);
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- node_count += 1;
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- });
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-}
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-
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-#[test]
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-fn get_node_children_mut() {
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- let mut tree = Tree::new();
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- let parent = tree.root();
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- tree.insert(parent, 0);
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- let mut child1 = tree.create_node();
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- child1.insert(1);
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- let child1 = child1.id();
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- tree.add_child(parent, child1);
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- let mut child2 = tree.create_node();
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- child2.insert(2);
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- let child2 = child2.id();
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- tree.add_child(parent, child2);
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- let mut child3 = tree.create_node();
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- child3.insert(3);
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- let child3 = child3.id();
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- tree.add_child(parent, child3);
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-
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- let mut view = tree.state_view_mut::<i32>();
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- let (parent, children) = view.parent_child_mut(parent).unwrap();
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- println!("Parent: {:#?}", parent);
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- println!("Children: {:#?}", children);
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- for (i, child) in children.into_iter().enumerate() {
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- assert_eq!(*child, i as i32 + 1);
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- }
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-}
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+// #[test]
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+// fn traverse_depth_first() {
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+// let mut tree = Tree::new();
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+// let parent = tree.root();
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+// tree.insert(parent, 0);
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+// let mut child1 = tree.create_node();
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+// child1.insert(1);
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+// let child1 = child1.id();
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+// tree.add_child(parent, child1);
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+// let mut grandchild1 = tree.create_node();
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+// grandchild1.insert(2);
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+// let grandchild1 = grandchild1.id();
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+// tree.add_child(child1, grandchild1);
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+// let mut child2 = tree.create_node();
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+// child2.insert(3);
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+// let child2 = child2.id();
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+// tree.add_child(parent, child2);
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+// let mut grandchild2 = tree.create_node();
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+// grandchild2.insert(4);
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+// let grandchild2 = grandchild2.id();
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+// tree.add_child(child2, grandchild2);
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+
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+// let view = tree.state_view::<i32>();
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+// let mut node_count = 0;
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+// view.traverse_depth_first(move |node| {
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+// assert_eq!(*node, node_count);
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+// node_count += 1;
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+// });
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+// }
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#[derive(Debug)]
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pub(crate) struct SlabStorage<T> {
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@@ -687,17 +667,17 @@ pub(crate) struct DynamiclyBorrowedAnySlabView<'a> {
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}
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impl<'a> DynamiclyBorrowedAnySlabView<'a> {
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- fn get_slab(
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- &self,
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+ fn get_slab<'b>(
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+ &'b self,
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type_id: TypeId,
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- ) -> Option<RwLockReadGuard<'_, &'a mut dyn AnySlabStorageImpl>> {
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+ ) -> Option<RwLockReadGuard<'b, &'a mut dyn AnySlabStorageImpl>> {
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self.data.get(&type_id).map(|x| x.read())
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}
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- fn get_slab_mut(
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- &self,
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+ fn get_slab_mut<'b>(
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+ &'b self,
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type_id: TypeId,
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- ) -> Option<RwLockWriteGuard<'_, &'a mut dyn AnySlabStorageImpl>> {
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+ ) -> Option<RwLockWriteGuard<'b, &'a mut dyn AnySlabStorageImpl>> {
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self.data.get(&type_id).map(|x| x.write())
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}
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}
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@@ -915,7 +895,6 @@ fn get_many_many_mut_unchecked() {
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println!("slab: {:#?}", slab);
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let mut num_entries = slab.write_slab::<i32>();
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- let mut str_entries = slab.write_slab::<&str>();
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let all_num = unsafe {
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num_entries
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@@ -927,6 +906,7 @@ fn get_many_many_mut_unchecked() {
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.unwrap();
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assert_eq!(all_num, [&mut 0, &mut 1, &mut 2]);
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+ let mut str_entries = slab.write_slab::<&str>();
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let all_str = unsafe {
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str_entries
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