Struct Parser 

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

Implementations

impl<'a> Parser<'a>

pub fn new(input: &'a str) -> Self

pub fn get_errors(&self) -> &[ErrorNode]

Get all errors encountered during parsing

pub fn parse(&mut self) -> Result<Expr>

Parse the input into an expression or block of expressions

Parse a complete program or expression

Examples

use ruchy::Parser;

let mut parser = Parser::new("42");
let ast = parser.parse().expect("Failed to parse");

use ruchy::Parser;

let mut parser = Parser::new("let x = 10 in x + 1");
let ast = parser.parse().expect("Failed to parse");

Errors

Returns an error if:

• The input is empty
• Syntax errors are encountered
• Unexpected tokens are found

Panics

Should not panic in normal operation. Uses expect on verified conditions.

Errors

Returns an error if the operation fails

pub fn parse_expr(&mut self) -> Result<Expr>

Parse a single expression

Examples

use ruchy::Parser;

let mut parser = Parser::new("1 + 2 * 3");
let expr = parser.parse_expr().expect("Failed to parse expression");

Errors

Returns an error if the input cannot be parsed as a valid expression

Errors

Returns an error if the operation fails

pub fn parse_expr_with_precedence(&mut self, min_prec: i32) -> Result<Expr>

Parse an expression with operator precedence

Examples

use ruchy::Parser;

let mut parser = Parser::new("1 + 2 * 3");
// Parse with minimum precedence 0 to get all operators
let expr = parser.parse_expr_with_precedence(0).expect("Failed to parse expression");

Errors

Returns an error if the expression cannot be parsed or contains syntax errors

Errors

Returns an error if the operation fails