Struct Cursor 

pub struct Cursor<'a> { /* private fields */ }

A borrowed walk cursor over a ParseResult — the core tree-walk primitive the deferred Visitor/Interpreter/Transformer classes will build on (Provisional-but-churn-averse). Resolves display names through the result’s table.

Implementations

impl<'a> Cursor<'a>

pub fn kind(&self) -> NodeKind<'a>

What this cursor points at.

pub fn data(&self) -> Option<&'a str>

The rule display name, when this is a tree node.

pub fn token(&self) -> Option<&'a Token>

The token, when this is a leaf.

pub fn children(&self) -> Vec<Cursor<'a>>

Child cursors, when this is a tree node (empty otherwise).

pub fn meta(&self) -> Option<&'a Meta>

Per-node position Meta (only under propagate_positions).

pub fn as_tree(&self) -> Option<&'a Tree>

The underlying tree node, when this is one (escape hatch for advanced use).

Trait Implementations

impl<'a> Clone for Cursor<'a>

fn clone(&self) -> Cursor<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for Cursor<'a>