Neos\Flow\Mvc\View\ViewInterface::render PHP Метод

    public function render();

 /**
  * Calls the specified action method and passes the arguments.
  *
  * If the action returns a string, it is appended to the content in the
  * response object. If the action doesn't return anything and a valid
  * view exists, the view is rendered automatically.
  *
  * @return void
  */
 protected function callActionMethod()
 {
     $preparedArguments = [];
     foreach ($this->arguments as $argument) {
         $preparedArguments[] = $argument->getValue();
     }
     $validationResult = $this->arguments->getValidationResults();
     if (!$validationResult->hasErrors()) {
         $actionResult = call_user_func_array([$this, $this->actionMethodName], $preparedArguments);
     } else {
         $actionIgnoredArguments = static::getActionIgnoredValidationArguments($this->objectManager);
         if (isset($actionIgnoredArguments[$this->actionMethodName])) {
             $ignoredArguments = $actionIgnoredArguments[$this->actionMethodName];
         } else {
             $ignoredArguments = [];
         }
         // if there exists more errors than in ignoreValidationAnnotations => call error method
         // else => call action method
         $shouldCallActionMethod = true;
         /** @var Result $subValidationResult */
         foreach ($validationResult->getSubResults() as $argumentName => $subValidationResult) {
             if (!$subValidationResult->hasErrors()) {
                 continue;
             }
             if (isset($ignoredArguments[$argumentName]) && $subValidationResult->getErrors(TargetNotFoundError::class) === []) {
                 continue;
             }
             $shouldCallActionMethod = false;
             break;
         }
         if ($shouldCallActionMethod) {
             $actionResult = call_user_func_array([$this, $this->actionMethodName], $preparedArguments);
         } else {
             $actionResult = call_user_func([$this, $this->errorMethodName]);
         }
     }
     if ($actionResult === null && $this->view instanceof ViewInterface) {
         $this->response->appendContent($this->view->render());
     } elseif (is_string($actionResult) && strlen($actionResult) > 0) {
         $this->response->appendContent($actionResult);
     } elseif (is_object($actionResult) && method_exists($actionResult, '__toString')) {
         $this->response->appendContent((string) $actionResult);
     }
 }