gistfile1.php

<?php

protected function renderBlocks(Request $request, BoundDisplayInterface $display) {
    $blockFragments = array();
    foreach ($display->getAllOuterBlockConfig() as $id => $config) {
      $block = $display->getBlock($id);


      if ($block instanceof SystemMainBlock) {
        $block->setControllerClosure($request->attributes->get('_content_closure'));
      }
      
      foreach ($block->getContextDefinitions() as $slot => $context_info) {
        if ($config['context'][$slot]['type'] == 'static') {
          $data = typed_data_blah_blah_load($config[$slot]['address']);
        }
        else if ($config['context'][$slot]['type'] == 'argument') {
          $data = $request->attributes->get($config[$slot]['address']);
        }
        else if ($config['context'][$slot]['type'] == 'derived') {
          $base = $request->attributes->get($config[$slot]['request_address']);
          $data = typed_data_blah_blah_load_from_thinger($base, $config[$slot]['typed_data_crazypants']);
        }
        $block->setContextValue($slot, $data);
      }

      $munged_request = clone $request;
      // @todo muck with the Request here to get it to where we need
      $blockFragments[$id] = $this->renderingStrategies[$config['strategy']]->render($block, $munged_request);
    }

    return $blockFragments;
  }