Struct UndoNode 

pub struct UndoNode { /* private fields */ }

A node in the undo tree.

Each node represents a set of edits made at a point in time, along with cursor positions for proper restoration.

Implementations

impl UndoNode

pub fn edits(&self) -> &[Edit]

Get the edits in this node.

pub const fn cursor_before(&self) -> Position

Get cursor position before edits.

pub const fn cursor_after(&self) -> Position

Get cursor position after edits.

pub const fn timestamp(&self) -> Instant

Get timestamp when this node was created.

pub const fn seq_num(&self) -> u64

Get sequential change number.

pub const fn is_root(&self) -> bool

Check if this is the root node.

pub const fn branch_count(&self) -> usize

Get number of branches (children) from this node.

pub const fn parent(&self) -> Option<usize>

Get parent node index.

pub fn children(&self) -> &[usize]

Get children node indices.

pub const fn origin(&self) -> EditOrigin

Get the origin of this edit.

Returns which client made this edit, or EditOrigin::System for system-generated edits.

Trait Implementations

impl Clone for UndoNode

fn clone(&self) -> UndoNode

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for UndoNode

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

Formats the value using the given formatter.