drupal-graphql / graphql

   */

  protected function buildTypeReferenceMap() {

    $types = $this->getTypeMap();

    $references = array_reduce(array_keys($types), function ($references, $name) use ($types) {

      $current = $types[$name];

      $reference = $current['reference'];

      if (!empty($reference) && (empty($references[$reference]) || $references[$reference]['weight'] < $current['weight'])) {

        $references[$reference] = [

          'name' => $name,

          'weight' => !empty($current['weight']) ? $current['weight'] : 0,

        ];

      }

      return $references;

    }, []);

    return array_map(function ($reference) {

      return $reference['name'];

   */

  protected function buildMutationMap() {

    $definitions = $this->mutationManager->getDefinitions();

    $mutations = array_reduce(array_keys($definitions), function ($carry, $id) use ($definitions) {

      $current = $definitions[$id];

      $name = $current['name'];

      if (empty($carry[$name]) || $carry[$name]['weight'] < $current['weight']) {

        $carry[$name] = [

          'id' => $id,

          'class' => $current['class'],

          'weight' => !empty($current['weight']) ? $current['weight'] : 0,

        ];

      }

      return $carry;

    }, []);

    return array_map(function ($definition) {

      $id = $definition['id'];