Struct TreeZipper 

pub struct TreeZipper<T>(pub Tree<T>, pub Vec<TreeCrumb<T>>);

Tuple Fields

0: Tree<T>

1: Vec<TreeCrumb<T>>

Implementations

impl<T> TreeZipper<T>

pub fn go_up(self) -> Option<Self>

Goes up one crumb. Think of it as retracing a step taken to get to this point in the structure.

pub fn get_ancestors(&self) -> Vec<&T>

Get items from the structure located above the current Node.

impl<T> TreeZipper<T>

where T: Clone + PartialEq,

pub fn go_to<F>(&self, match_fn: F) -> Option<Self>

where F: Fn(&T) -> bool,

Descend the zipper using match_fn, returning a new Zipper at that Node with crumbs to get back to the source Node if it is satisfied, or None if it isn’t.

Trait Implementations

impl<T: Debug> Debug for TreeZipper<T>

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

Formats the value using the given formatter.