PermissionHandler::buildPermissionsYaml

protected PermissionHandler::buildPermissionsYaml()

protected function buildPermissionsYaml() {
  $all_permissions = array();
  $all_callback_permissions = array();

  foreach ($this->getYamlDiscovery()->findAll() as $provider => $permissions) {
    // The top-level 'permissions_callback' is a list of methods in controller
    // syntax, see \Drupal\Core\Controller\ControllerResolver. These methods
    // should return an array of permissions in the same structure.
    if (isset($permissions['permission_callbacks'])) {
      foreach ($permissions['permission_callbacks'] as $permission_callback) {
        $callback = $this->controllerResolver->getControllerFromDefinition($permission_callback);
        if ($callback_permissions = call_user_func($callback)) {
          // Add any callback permissions to the array of permissions. Any
          // defaults can then get processed below.
          foreach ($callback_permissions as $name => $callback_permission) {
            if (!is_array($callback_permission)) {
              $callback_permission = array(
                'title' => $callback_permission,
              );
            }

            $callback_permission += array(
              'description' => NULL,
              'provider' => $provider,
            );

            $all_callback_permissions[$name] = $callback_permission;
          }
        }
      }

      unset($permissions['permission_callbacks']);
    }

    foreach ($permissions as &$permission) {
      if (!is_array($permission)) {
        $permission = array(
          'title' => $permission,
        );
      }
      $permission['title'] = $this->t($permission['title']);
      $permission['description'] = isset($permission['description']) ? $this->t($permission['description']) : NULL;
      $permission['provider'] = !empty($permission['provider']) ? $permission['provider'] : $provider;
    }

    $all_permissions += $permissions;
  }

  return $all_permissions + $all_callback_permissions;
}