Enum id_tree::InsertBehavior

pub enum InsertBehavior<'a> {
    AsRoot,
    UnderNode(&'a NodeId),
}

Describes the possible behaviors of the Tree::insert method.

Variants

AsRoot

Sets the root of the Tree.

If there is already a root Node present in the tree, that Node is set as the first child of the new root.

use id_tree::*;
use id_tree::InsertBehavior::*;

let mut tree: Tree<i32> = Tree::new();

tree.insert(Node::new(5), AsRoot).unwrap();

UnderNode(&'a NodeId)

Returns a Result containing the NodeId of the child that was added or a NodeIdError if one occurred.

Note: Adds the new Node to the end of its children.

use id_tree::*;
use id_tree::InsertBehavior::*;

let root_node = Node::new(1);
let child_node = Node::new(2);

let mut tree: Tree<i32> = Tree::new();
let root_id = tree.insert(root_node, AsRoot).unwrap();

tree.insert(child_node, UnderNode(&root_id)).unwrap();