goto-in-javascript

goto.js

function goto (func, line) {
  var code = func.toString()
    .split('\n')
    .slice(line)
    .join('\n');
  var curlies = 0;
  for (var i = 0; i < code.length; i++) {
    if (code[i] === '{') {
      curlies--;
    }
    if (code[i] === '}') {
      curlies++;
    }
  }
  code = Array(Math.max(1, curlies+1)).join('{') + code;
  try {
    eval(code);
  } catch (e) {}
}

function yolo () {
  var i = 3;
  console.log(i);
  i--;
  // strict equality is very important
  if (i !== 0) {
    goto(yolo, 2);
  }
}

// This is still somewhat broken. For some reason, it prints the value '66' in a loop.
yolo();

Ok, so when this runs, i is in goto's scope, not yolo's. let me see if I can fix that