React\Promise\Promise::settle PHP Метод

    private function settle(ExtendedPromiseInterface $result)
    {
        if ($result instanceof LazyPromise) {
            $result = $result->promise();
        }
        if ($result === $this) {
            $result = new RejectedPromise(new \LogicException('Cannot resolve a promise with itself.'));
        }
        $handlers = $this->handlers;
        $this->handlers = [];
        $this->result = $result;
        foreach ($handlers as $handler) {
            $handler($result);
        }
    }