Lox

Introduction

Lox is a very basic programming language designed for the Crafting Interpreters book by Robert Nystrom. This repository contains an implementation written in Zig based on the official guide that uses C (clox).

Overview

print "hello, world!";

Variables

var a = "global";
{
    var a = "outer";
    {
        var a = "inner";
        print a;
    }
    print a;
}
print a;

Control Flow

if (2 + 2 < 5 and 6 * 8 != 50) {
    print "yes";
} else {
    print "no";
}

var a = 1;
while (a <= 10) {
    print a;
    a = a + 1;
}

for (var a = 1; a <= 10; a = a + 1) {
    print a;
}

Functions

fun add(a, b) {
    return a + b;
}

print add(1, 2);

Closures

fun outer() {
    var outside = "outside";
    fun inner() {
      print outside;
    }
    return inner;
}

var inner = outer();
inner();