tasks/things/compiler.js
function Runner() {
    _classCallCheck(this, Runner);

    this.firstline = false;
    this.lastline = false;
    this.firstchar = false;
    this.lastchar = false;
    this._line = null;
    this._index = -1;
  }
function Runner() {
    _classCallCheck(this, Runner);

    this.firstline = false;
    this.lastline = false;
    this.firstchar = false;
    this.lastchar = false;
    this._line = null;
    this._index = -1;
  }
function Runner ( ) { _classCallCheck ( this , Runner ) ; this . firstline = false ; this . lastline = false ; this . firstchar = false ; this . lastchar = false ; this . _line = null ; this . _index = - 1 ; }
Let's go.
Let s go .