Struct TraversalCursor 

pub struct TraversalCursor {
    pub position: BlockId,
    pub neighborhood: CursorNeighborhood,
    pub breadcrumbs: VecDeque<BlockId>,
    pub view_mode: ViewMode,
    /* private fields */
}

Represents an agent’s current position and view in the graph.

Fields

position: BlockId

Current focus block.

neighborhood: CursorNeighborhood

Visible neighborhood (cached expansion).

breadcrumbs: VecDeque<BlockId>

Breadcrumb trail for navigation.

view_mode: ViewMode

Current view mode.

Implementations

impl TraversalCursor

pub fn new(position: BlockId, max_breadcrumbs: usize) -> Self

pub fn move_to(&mut self, new_position: BlockId)

Move cursor to a new position.

pub fn go_back(&mut self, steps: usize) -> Option<BlockId>

Go back in navigation history.

pub fn can_go_back(&self) -> bool

Check if we can go back.

pub fn history_depth(&self) -> usize

Get the number of steps we can go back.

pub fn clear_history(&mut self)

Clear navigation history.

pub fn update_neighborhood(&mut self, neighborhood: CursorNeighborhood)

Update the neighborhood cache.

pub fn needs_refresh(&self) -> bool

Check if neighborhood needs refresh.

Trait Implementations

impl Clone for TraversalCursor

fn clone(&self) -> TraversalCursor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TraversalCursor

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

Formats the value using the given formatter.