Term.php

<?php

namespace Drupal\taxonomy\Plugin\views\argument_validator;

use Drupal\views\ViewExecutable;
use Drupal\views\Plugin\views\display\DisplayPluginBase;
use Drupal\views\Plugin\views\argument_validator\Entity;

/**
 * Adds legacy vocabulary handling to standard Entity Argument validation..
 */
class Term extends Entity {
    
    /**
     * {@inheritdoc}
     */
    public function init(ViewExecutable $view, DisplayPluginBase $display, array &$options = NULL) {
        parent::init($view, $display, $options);
        // @todo Remove the legacy code.
        // Convert legacy vids option to machine name vocabularies.
        if (!empty($this->options['vids'])) {
            $vocabularies = taxonomy_vocabulary_get_names();
            foreach ($this->options['vids'] as $vid) {
                if (isset($vocabularies[$vid], $vocabularies[$vid]->machine_name)) {
                    $this->options['vocabularies'][$vocabularies[$vid]->machine_name] = $vocabularies[$vid]->machine_name;
                }
            }
        }
    }

}