Struct Zipper 

pub struct Zipper<Id, S> {
    pub node: Node<Id, S>,
    pub parent: Option<Box<Zipper<Id, S>>>,
    /* private fields */
}

Example of a Zipper cursor traversing a Vec, the focus provides a view “Up” and “Down” the data:

[1, 2, 3, 4, 5] // array with 5 entries
 1}[2, 3, 4, 5] // zipper starts with focues at first index
[1] 2}[3, 4, 5] // moving down the array
[2, 1] 3}[4, 5]
[3, 2, 1] 4}[5]
[4, 3, 2, 1]{5  // zipper travels back up the array

See node/README.md for further details.

Fields

node: Node<Id, S>

parent: Option<Box<Zipper<Id, S>>>

Implementations

impl<K> Zipper<StateId<K>, K::State>

where K: Kind + HashKind,

pub fn finish_update(self) -> Node<StateId<K>, <K as Kind>::State>