<?php
  
  /**
   * This file is part of the Carbon package.
   *
   * (c) Brian Nesbitt <brian@nesbot.com>
   *
   * For the full copyright and license information, please view the LICENSE
   * file that was distributed with this source code.
   */
  
  namespace Carbon\Traits;
  
  use Carbon\Exceptions\InvalidCastException;
  use DateTimeInterface;
  
  /**
   * Trait Cast.
   *
   * Utils to cast into an other class.
   */
  trait Cast
  {
      /**
       * Cast the current instance into the given class.
       *
       * @param string $className The $className::instance() method will be called to cast the current object.
       *
       * @return DateTimeInterface
       */
      public function cast(string $className)
      {
          if (!method_exists($className, 'instance')) {
              if (is_a($className, DateTimeInterface::class, true)) {
                  return new $className($this->rawFormat('Y-m-d H:i:s.u'), $this->getTimezone());
              }
  
              throw new InvalidCastException("$className has not the instance() method needed to cast the date.");
          }
  
          return $className::instance($this);
      }
  }