NodeViewBuilder::buildLinks

protected static NodeViewBuilder::buildLinks(NodeInterface $entity, $view_mode)

protected static function buildLinks(NodeInterface $entity, $view_mode) {
  $links = array();

  // Always display a read more link on teasers because we have no way
  // to know when a teaser view is different than a full view.
  if ($view_mode == 'teaser') {
    $node_title_stripped = strip_tags($entity->label());
    $links['node-readmore'] = array(
      'title' => t('Read more<span class="visually-hidden"> about @title</span>', array(
        '@title' => $node_title_stripped,
      )),
      'url' => $entity->urlInfo(),
      'language' => $entity->language(),
      'attributes' => array(
        'rel' => 'tag',
        'title' => $node_title_stripped,
      ),
    );
  }

  return array(
    '#theme' => 'links__node__node',
    '#links' => $links,
    '#attributes' => array('class' => array('links', 'inline')),
  );
}