if (! isTop) out.print(")");
  public void generateAssignRef(PhpWriter out, String value)    throws IOException  {    if (_var.isValue())      throw new IllegalStateException(this + " cannot be a reference");        if (_var.isGlobal()) {      out.print(getJavaVar());      out.print(" = env.setVar(\"");      out.printJavaString(_name);      out.print("\", " + value + ")");    } else {      out.print(getJavaVar());      out.print(" = ");      out.print(value);    }  }