Trait LayoutTreeVisitor

pub trait LayoutTreeVisitor<T: LayoutTreeNode> {
    // Required methods
    fn parent(&self) -> Option<&T>;
    fn for_each_child<'a, 'b: 'a, F>(&'b self, f: F)
       where F: FnMut(&'a T, usize),
             T: 'a;
    fn children_len(&self) -> usize;
    fn child_at(&self, index: usize) -> Option<&T>;
}

A helper type for tree traversal.

Required Methods

fn parent(&self) -> Option<&T>

Get the parent node.

fn for_each_child<'a, 'b: 'a, F>(&'b self, f: F)

where F: FnMut(&'a T, usize), T: 'a,

Get child nodes.

fn children_len(&self) -> usize

Get the count of child nodes.

fn child_at(&self, index: usize) -> Option<&T>

Get the specified 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