RawMessage.php

<?php
 
/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
 
namespace Symfony\Component\Mime;
 
use Symfony\Component\Mime\Exception\LogicException;
 
class RawMessage implements \Serializable
{
    private $message;
 
    public function __construct($message)
    {
        $this->message = $message;
    }
 
    public function toString(): string
    {
        if (\is_string($this->message)) {
            return $this->message;
        }
 
        return $this->message = implode('', iterator_to_array($this->message, false));
    }
 
    public function toIterable(): iterable
    {
        if (\is_string($this->message)) {
            yield $this->message;
 
            return;
        }
 
        $message = '';
        foreach ($this->message as $chunk) {
            $message .= $chunk;
            yield $chunk;
        }
        $this->message = $message;
    }
 
    public function ensureValidity()
    {
    }
 
    final public function serialize(): string
    {
        return serialize($this->__serialize());
    }
 
    final public function unserialize($serialized)
    {
        $this->__unserialize(unserialize($serialized));
    }
 
    public function __serialize(): array
    {
        return [$this->message];
    }
 
    public function __unserialize(array $data): void
    {
        [$this->message] = $data;
    }
}