test-clox.lox

print !(5 - 4 > 3 * 2 == !nil);
print "this " + "is "+ "a " + "test string";
var a = 1000;
var b = a + 300;
b = b + 37;
print b;

var a = 1;
{
    print "outer scope before assigning:";
    print a;
    var a = 1337;
    print "outer scope after assigning:";
    print a;
    {
        print "inner scope before assigning:";
        print a;
        var b = a;
        var a = b + 1;
        print "inner scope after assigning:";
        print b;
        print a;
    }
    print "outer scope:";
    print a;
}
print "global scope:";
print a;

print "before if-else";
if (1337 > 0) {
    print "1337 is > 0!";
} else {
    print "1337 is NOT > 0!";
}
print "after if-else";

var a = 1 or 2;
print a;
a = false or 3;
print a;
a = false or false;
print a;
var b = 1 and 2;
print b;
b = 1 and false;
print b;
b = false and false;
print b;

var l = 10;
while(l > 0) {
    print l;
    l = l - 1;
}

for(var i=0; i<10; i=i+2) {
    print i;
}

fun test_function() {
    print "woo we're inside a function!";
}
print test_function;
test_function();

fun sum(a, b, c) {
    return a + b + c;
}

print sum(1, 2, 3);

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

var start = clock();
for (var i = 0; i <= 20; i = i + 1) {
    // uncomment to calculate fib
    // print fib(i);
}
print clock() - start;


// closures test
var x = "global";
fun outer() {
    var x = "outer";
    fun inner() {
        print x;
    }
    inner();
}
outer();

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

  return inner;
}

var closure = outer();
closure();

class Klass {}
print Klass;
print Klass();

class Pair {}
var pair = Pair();
pair.first = 1300;
pair.second = 37;
print pair.first + pair.second;  // 1337

class Scone {
    topping(first, second) {
        print "scone with " + first + " and " + second;
    }
}
var scone = Scone();
scone.topping("berries", "cream");

class CoffeeMaker {
    init(coffee) {
        this.coffee = coffee;
    }

    brew() {
        print "Enjoy your cup of " + this.coffee;

        // no reusing the grounds!
        this.coffee = nil;
    }
}

var maker = CoffeeMaker("coffee and chicory");
maker.brew();

class Doughnut {
  cook() {
    print "Dunk in the fryer.";
    this.finish("sprinkles");
  }

  finish(ingredient) {
    print "Finish with " + ingredient;
  }
}

class Cruller < Doughnut {
  finish(ingredient) {
    // No sprinkles, always icing.
    super.finish("icing");
  }
}

Doughnut().cook();
Cruller().cook();

var nan = 0 / 0;
print nan == nan;