Var var = getGlobalRef(name);
if (value != null) return (Var) value;  Var var = _globalMap.get(name);  if (var != null) return var;  var = getSpecialRef(name);
  public Var getGlobalVar(String name)  {    Var var = getGlobalRef(name);    if (var == null) {      var = new Var();      var.setGlobal();      _globalMap.put(name, var);    }    return var;  }