Trait TraversePartialTree

pub trait TraversePartialTree {
    type ChildIter<'a>: Iterator<Item = NodeId>
       where Self: 'a;

    // Required methods
    fn child_ids(&self, parent_node_id: NodeId) -> Self::ChildIter<'_>;
    fn child_count(&self, parent_node_id: NodeId) -> usize;
    fn get_child_id(&self, parent_node_id: NodeId, child_index: usize) -> NodeId;
}

Taffy’s abstraction for downward tree traversal.

However, this trait does not require access to any node’s other than a single container node’s immediate children unless you also intend to implement TraverseTree.

Required Associated Types

type ChildIter<'a>: Iterator<Item = NodeId> where Self: 'a

Type representing an iterator of the children of a node

Required Methods

fn child_ids(&self, parent_node_id: NodeId) -> Self::ChildIter<'_>

Get the list of children IDs for the given node

fn child_count(&self, parent_node_id: NodeId) -> usize

Get the number of children for the given node

fn get_child_id(&self, parent_node_id: NodeId, child_index: usize) -> NodeId

Get a specific child of a node, where the index represents the nth child

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors