anupj / monkey-lang

Interpreter written in Rust

Monkey Language Interpreter in Rust

About The Project

Monkey is a small, C-like programming language. This repository contains a Rust-based interpreter for the Monkey language.

It is based on the interpreter described in Writing an Interpreter in Go book by Thorsten Ball.

Work in Progress

• Lexer
• Parser (In progress)
• Evaluation
• Extending the Interpreter
• Finishing touches

Language Features

Monkey comes with several features commonly found in modern programming languages:

Syntax

• C-like syntax for ease of understanding and usage.

Variable Bindings

• Ability to bind values to names using the let statement.

let age = 1;
let name = "Monkey";
let result = 10 * (20 / 2);

Data Types

• Supports integers, booleans, strings, arrays, and hash data structures.

let myArray = [1, 2, 3, 4, 5];
let thorsten = {"name": "Thorsten", "age": 28};

Operators

• Arithmetic expressions are supported.

Functions

• First-class and higher-order functions, closures are supported.

let add = fn(a, b) { return a + b; };
let twice = fn(f, x) { return f(f(x)); };

Control Structures

If-else statements, loops are supported.

Access Expressions

Access array and hash elements using index expressions.

myArray[0] // => 1
thorsten["name"] // => "Thorsten"

Built with

Rust Programming Language