Struct CursorResource 

pub struct CursorResource { /* private fields */ }

TS.2 backing for the tree-cursor WIT resource: a mutable position in the tree, represented as a child-index path (the NodeResource scheme) so the cursor stays a safe (snapshot, path) pair — no self-referential tree_sitter::TreeCursor<'tree>.

Implementations

impl CursorResource

pub fn current_node(&self) -> NodeResource

The node the cursor currently sits on.

pub fn current_field(&self) -> Option<String>

The grammar field of the current node relative to its parent, or None (root, or a child in no named field slot).

pub fn goto_first_named_child(&mut self) -> bool

Move to the first NAMED child; false (no move) if there is none.

pub fn goto_next_named_sibling(&mut self) -> bool

Move to the next NAMED sibling; false (no move) if there is none.

pub fn goto_parent(&mut self) -> bool

Move to the parent; false (no move) at the root.

pub fn reset(&mut self, node: &NodeResource)

Reposition onto node (assumed a node of the same snapshot).

pub fn reset_to_path(&mut self, path: Vec<u32>)

Reposition onto the given root-relative child-index path. Used by the host reset binding, which reads the target node’s path from the resource table (avoiding a simultaneous borrow of the cursor and the node).