WanderingStar/jlox

Following https://craftinginterpreters.com

Implemented challenges:

• 6.1: , operator
• 6.2: ?: operator
• 9.3: break statement
  • originally thought of using exceptions, but it seemed like cheating, so I did it by adding a broken flag to the interpreter, but went back and used exceptions after seeing how return is implemented
  • bonus: break statement with labeled loops:

for outer (var i=0; i<10; i=i+1) {
    while inner (true) {
        print i;
        if (i>5) break outer;
        i=i+1;
    }
    print "outer";
}

• 10.2: anonymous functions
• 11.3: unused variable errors. special treatment for variables named _ (don't complain if they aren't used or if they're redefined, but do complain if they are used)
• 12.1: class methods, class init()
• 12.2: getter/setter
• 13.1: multiple inheritance with C3 linearization