Struct Arena 

pub struct Arena<T>
where
    T: Debug + Clone + Send + Sync,
{ /* private fields */ }

Implementations

impl<T> Arena<T>

where T: Debug + Clone + Send + Sync,

pub fn filter_all_nodes_by(&self, filter_fn: &FilterFn<T>) -> ResultUidList

If no matching nodes can be found returns None.

pub fn get_children_of(&self, node_id: usize) -> ResultUidList

If node_id can’t be found, returns None.

pub fn get_parent_of(&self, node_id: usize) -> Option<usize>

If node_id can’t be found, returns None.

pub fn node_exists(&self, node_id: usize) -> bool

pub fn has_parent(&self, node_id: usize) -> bool

pub fn delete_node(&self, node_id: usize) -> ResultUidList

If node_id can’t be found, returns None.

pub fn tree_walk_dfs(&self, node_id: usize) -> ResultUidList

• DFS graph walking
• DFS tree walking

pub fn tree_walk_bfs(&self, node_id: usize) -> ResultUidList

• BFS graph walking
• BFS tree walking

pub fn get_node_arc_weak(&self, node_id: usize) -> Option<WeakNodeRef<T>>

If node_id can’t be found, returns None. More info on Option.map()

pub fn get_node_arc(&self, node_id: usize) -> Option<NodeRef<T>>

If node_id can’t be found, returns None. More info on Option.map()

pub fn add_new_node( &mut self, payload: T, maybe_parent_id: Option<usize>, ) -> usize

Note data is cloned to avoid data being moved. If parent_id can’t be found, it panics.

pub fn new() -> Self

Trait Implementations

impl<T> Debug for Arena<T>

where T: Debug + Clone + Send + Sync + Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T> Default for Arena<T>

where T: Debug + Clone + Send + Sync,

fn default() -> Self

Returns the “default value” for a type.