AttachmentsTrait.php

<?php

namespace Drupal\Core\Render;


/**
 * Provides an implementation of AttachmentsInterface.
 *
 * @see \Drupal\Core\Render\AttachmentsInterface
 */
trait AttachmentsTrait {
    
    /**
     * The attachments for this response.
     *
     * @var array
     */
    protected $attachments = [];
    
    /**
     * {@inheritdoc}
     */
    public function getAttachments() {
        return $this->attachments;
    }
    
    /**
     * {@inheritdoc}
     */
    public function addAttachments(array $attachments) {
        $this->attachments = BubbleableMetadata::mergeAttachments($this->attachments, $attachments);
        return $this;
    }
    
    /**
     * {@inheritdoc}
     */
    public function setAttachments(array $attachments) {
        $this->attachments = $attachments;
        return $this;
    }

}