Struct CheckpointStack 

pub struct CheckpointStack { /* private fields */ }

A stack of parse checkpoints.

Implementations

impl CheckpointStack

pub fn new() -> Self

pub fn push(&mut self, cp: ParseCheckpoint)

pub fn pop(&mut self) -> Option<ParseCheckpoint>

pub fn peek(&self) -> Option<&ParseCheckpoint>

pub fn depth(&self) -> usize

pub fn is_empty(&self) -> bool

Trait Implementations

impl Default for CheckpointStack

fn default() -> Self

Returns the “default value” for a type.