code: function Parser(str, opts) {
    this._oneWayVoid = !!(opts && opts.oneWayVoid);
    this._reassignJavadoc = !!(opts && opts.reassignJavadoc);
    this._imports = [];
    this._tk = new Tokenizer(str);
    this._tk.next(); // Prime tokenizer.
  }
docs: Parser from tokens to attributes.