Snippets for PMD post

constructor_inheritance.js

function Bloop() { }
var bloop = new Bloop();

bloop.constructor === Bloop; // and indeed,
bloop.constructor === Bloop.prototype.constructor;

constructor_inheritance_2.js

function Bleep() {}
Bleep.prototype = new Bloop();
var bleep = new Bleep();
bleep.constructor !== Bleep; // Eeeee!
bleep.constructor === Bloop; // Aaaaa!

method_lookup.js

function lookup(args) {
  var ranks = {};
  var mostspecificmethod = false;
  var mostspecificrank = [];

  for (var i=0, len = args.length; i < len; i++) {
    var position = 0;
    var rolename = selector + ':' + i;
    var newranks = {};

    var arg = args[i];

    do {
      var methods;
      var table = get_table(arg, false);
      if (table !== undefined &&
          (methods = table[rolename])) {

        methods.forEach(function (methodname) {
          // If this method hasn't qualified for
          // previous arguments, it can't be
          // applicable.
          if (i > 0 && !(methodname in ranks)) {
            return; // i.e., continue
          }

          var rank = (i > 0) ? ranks[methodname] : [];
          newranks[methodname] = rank;
          rank[i] = position;

          if (i === len - 1 &&
              (!mostspecificmethod ||
               rank < newranks[mostspecificmethod])) {
            mostspecificmethod = methodname;
          }
        });
      }

      arg = delegate(arg);
      position++;
    } while (arg !== null);
    ranks = newranks;
  }
  return METHODS[mostspecificmethod];
}