eZ\Publish\Core\MVC\Symfony\View\Manager::renderBlock PHP Method

    public function renderBlock(Block $block, $parameters = array())
    {
        $view = new BlockView(null, $parameters);
        $view->setBlock($block);
        $this->viewConfigurator->configure($view);
        if ($view->getTemplateIdentifier() === null) {
            throw new RuntimeException("Unable to find a view for location #{$block->id}");
        }
        return $this->renderContentView($view);
    }

 /**
  * Render the block
  *
  * @param \eZ\Publish\Core\FieldType\Page\Parts\Block $block
  * @param array $params
  * @param array $cacheSettings settings for the HTTP cache, 'smax-age' and
  *        'max-age' are checked.
  *
  * @return \Symfony\Component\HttpFoundation\Response
  */
 public function viewBlock(Block $block, array $params = array(), array $cacheSettings = array())
 {
     $response = new Response();
     if ($this->getParameter('content.view_cache') === true) {
         $response->setPublic();
         if (isset($cacheSettings['smax-age']) && is_int($cacheSettings['smax-age'])) {
             $response->setSharedMaxAge((int) $cacheSettings['smax-age']);
         }
         if (isset($cacheSettings['max-age']) && is_int($cacheSettings['max-age'])) {
             $response->setMaxAge((int) $cacheSettings['max-age']);
         }
     }
     $response->setContent($this->viewManager->renderBlock($block, $params + array('pageService' => $this->pageService, 'valid_items' => $this->pageService->getValidBlockItems($block))));
     return $response;
 }