Kraken\_Unit\Promise\PromiseTest::createDeferred PHP Метод

    public function createDeferred()
    {
        $resolveCallback = $rejectCallback = $cancelCallback = null;
        $promise = new Promise(function ($resolve, $reject, $cancel) use(&$resolveCallback, &$rejectCallback, &$cancelCallback) {
            $resolveCallback = $resolve;
            $rejectCallback = $reject;
            $cancelCallback = $cancel;
        });
        return new DeferredBridge(['getPromise' => function () use($promise) {
            return $promise;
        }, 'resolve' => $resolveCallback, 'reject' => $rejectCallback, 'cancel' => $cancelCallback]);
    }