Struct Parser

pub struct Parser<'tok> { /* private fields */ }

The core parser with dynamic rules

Implementations

impl<'src> Parser<'src>

pub fn parse(&mut self) -> Result<Vec<Expr<'src>>, ParseError>

Parse a series of statements

pub fn statement(&mut self) -> Result<Expr<'src>, ParseError>

Parse a singular statement

impl<'tok> Parser<'tok>

pub fn from_rng<RNG: RngCore>(rng: &mut RNG) -> Self

Creates a new parser from RNG

pub fn with_tokens(self, tokens: &'tok [Token<'tok>]) -> Self

Assigns a token stream to the parser

pub fn peek(&self) -> TokenTag<'tok>

Peeks at the current token

pub fn peek_token(&self) -> Token<'tok>

Peeks at the current token

pub fn peek_back(&self) -> TokenTag<'tok>

Peeks at the previous token, does not advance the index

pub fn advance(&mut self) -> TokenTag<'tok>

Advances forward and returns the previous token

pub fn consume(&mut self, token: &TokenTag<'_>) -> Result<(), ParseError>

Consumes the current token assuming it’s the provided Token, failing if not

pub fn consume_end(&mut self) -> Result<(), ParseError>

Consumes the proper end for the tree

pub fn consume_close_paren_if_necessary(&mut self) -> Result<(), ParseError>

If the current rules require parenthesis, consume ’em

pub fn consume_open_paren_if_necessary(&mut self) -> Result<(), ParseError>

If the current rules require parenthesis, consume ’em