Lox Language Compiler and Bytecode VM

Written in C

Lox is a object oriented, dynamically typed language. Clox is a compiler and bytecode VM built for the Lox language. Clox does single pass compilation and compiles the code into custom bytecode that is interpreted by the VM. Clox uses its own custom garbage collector to manage memory. This language implementation is similar to that of Python, Ruby, and Lua.

Make:

make clox

Usage:

./clox [fileName]

Lox Examples

Lines are teriminated with semicolons.

The var keyword is used to initialize variables.
Example:

var a = 4;
print a; // 4

Loops should look familar.
Example:

fun fib(n){ // gets up to n of the fibonacci sequence
    var a = 0;
    var b = 1;
    var c = 0;
    while (c < n){
        c = a + b;
        print c;
        a = b;
        b = c;
    }
}

The fun keyword is used to define functions.
Example:

fun factorial(n){
    if (n < 1){
        return 1;
    }
    return n * factorial(n-1);
}

The class keywords is used to define classes and < is used for inheritance of a superclass.
Example:

class Animal {
    init(age, name){
        this.age = age;
        this.name = name;
    }

    getSound(){
        return "generic sound";
    }
}

class Lion < Animal {
    init(age, name, weight){
        super.init(age, name);
        this.weight = weight;
    }

    getSound(){
        return "roar";
    }

    eat(){
        return "ate";
    }
}

var gabe = Lion(22, "Gabe", 140);
print gabe.weight;
print gabe.getSound();
print gabe.eat();