Struct parser_compose::FailureLog

pub struct FailureLog { /* private fields */ }

A log of parser failures sorted by input position in descending order.

This is returned when when parsers fail.

Implementations

impl FailureLog

pub fn new() -> Self

Creates a new log of failures

pub fn add(&mut self, reason: Reason, position: usize)

Record a new parser failure at a given input position

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

Pops ParserFailures from the log in descending order of input position

Returns None if the log is empty

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

Peeks the next ParserFailure from the log in descending order of input position

Returns None if the log is empty

pub fn to_vec(self) -> Vec<ParserFailure>

Consumes the log and returns a vector of ParserFailures sorted in ascending order of input position

Trait Implementations

impl Debug for FailureLog

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

Formats the value using the given formatter.

impl Default for FailureLog

fn default() -> Self

Returns the “default value” for a type.