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<?php
/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
use GuzzleHttp\Psr7\StreamDecoratorTrait;
use GuzzleHttp\Psr7\Utils;
use Psr\Http\Message\StreamInterface;
/**
* Callback-aware stream. Allows using a callback function to receive data in contexts where
* a PSR-7 stream is required. This was created so that GuzzleHttpRequest can support our
* "callback" option, for backward compatibility. Newer code that uses GuzzleHttpRequest
* should consider using the "sink" option instead.
*
* @internal for use by GuzzleHttpRequest only
* @since 1.33
* @property StreamInterface $stream Defined in StreamDecoratorTrait via `@property`, not read
* by phan
*/
class MWCallbackStream implements StreamInterface {
use StreamDecoratorTrait;
/** @var callable */
private $callback;
/** @var StreamInterface */
protected $stream;
public function __construct( callable $cb ) {
$this->stream = Utils::streamFor();
$this->callback = $cb;
}
public function write( $string ) {
return call_user_func( $this->callback, $this, $string );
}
}
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