Example:

MainView.php
<?php
class MainView extends View
{
    protected final function _main ()
    {
        // This call buffers/queues the given template
        // file and gives it access to the MainView scope
        $this->setTemplate("template.php");
    }

    private function privateMethod ()
    {
        // Do something private
    }
}
?>

template.php
<?php /* @var $this MainView */
$this->...
?>

This obviously wont hint the privateMethod(), but since many frameworks works on this principle it would be nice to hint the scope too. E.g: /* @scope MainView */ which would provide MainView scope on $this.