Passing helper php function to pug context ? about pug HOT 2 CLOSED

public function get() {
    $routerPathFor = array($this->router, 'pathFor');
    $pathFor = function ($pathName) use ($routerPathFor) {
        return call_user_func($routerPathFor, $pathName);
    };
    // Depending on your PHP version you can use directly $routerPathFor

   return $this->pug->render('productPage.pug', $this->templateParams, array(
      'pathFor' => $pathFor
   ));
}

// somewhere in a global place after $this->pug is instanciated
// for example, the constructor of an abstract class that all controllers extend
$this->pug->share('pathFor', $pathFor);