# woocommerce-pos/1.10.7/vendor_prefixed/guzzlehttp/psr7/src/LazyOpenStream.php

WCPOS – Point of Sale (POS) plugin for WooCommerce, version 1.10.7. 43 lines.

- Page: https://pluginprobe.com/plugins/woocommerce-pos/1.10.7/code/vendor_prefixed/guzzlehttp/psr7/src/LazyOpenStream.php
- Raw: https://pluginprobe.com/plugins/woocommerce-pos/1.10.7/raw/vendor_prefixed/guzzlehttp/psr7/src/LazyOpenStream.php
- Modified: 2026-09-01T14:48:10+00:00

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```php
<?php

declare (strict_types=1);
namespace WCPOS\Vendor\GuzzleHttp\Psr7;

use WCPOS\Vendor\Psr\Http\Message\StreamInterface;
/**
 * Lazily reads or writes to a file that is opened only after an IO operation
 * take place on the stream.
 */
final class LazyOpenStream implements StreamInterface
{
    use StreamDecoratorTrait;
    use NonSerializableStreamTrait;
    private string $filename;
    private string $mode;
    private StreamInterface $stream;
    /**
     * @param string $filename File to lazily open
     * @param string $mode     fopen mode to use when opening the stream
     */
    public function __construct(string $filename, string $mode)
    {
        $this->filename = $filename;
        $this->mode = $mode;
        // unsetting the property forces the first access to go through
        // __get().
        unset($this->stream);
    }
    public function __unserialize(array $data) : void
    {
        $this->stream = new BufferStream();
        throw new \LogicException(static::class . ' should never be unserialized');
    }
    /**
     * Creates the underlying stream lazily when required.
     */
    protected function createStream() : StreamInterface
    {
        return Utils::streamFor(Utils::tryFopen($this->filename, $this->mode));
    }
}

```