Jlox ⚙️

An abstract syntax tree walk interpreter written in Java for a modified version of lox with support for better control flow (e.g. continue, break statements), improved error messages and many other fun features!

Run guide 📝

First, clone the repository locally:

git clone https://github.com/Sarakuzoi/jlox.git

Then in your IDE of choice run the Lox.java class. You can run the interpreter with or without a CLI argument specifying an input file for the program.

If you choose to run the program without an input file, you will be promped with a REPL environment in your console:

> var a = 4;
> var b = 2;
> a + b == 6;
true

Example code 🎮

Here is a simple program showcasing some of JLox's syntax with an (inefficient) implementation of a program printing out the first 20 Fibonacci numbers:

fun fib(n) {
    if (n <= 1) return n;
    return fib(n - 2) + fib(n - 1);
}

for (var i = 0; i < 20; i = i + 1) {
    print fib(i);
}

License ⚖️

This project is released under MIT license. Check out the LICENSE file for more information.