reason = $reason; } public function then(?callable $onFulfilled = null, ?callable $onRejected = null) : PromiseInterface { // If there's no onRejected callback then just return self. if (!$onRejected) { return $this; } $queue = Utils::queue(); $reason = $this->reason; $p = new Promise([$queue, 'run']); $queue->add(static function () use($p, $reason, $onRejected) : void { if (Is::pending($p)) { try { // Return a resolved promise if onRejected does not throw. $p->resolve($onRejected($reason)); } catch (\Throwable $e) { // onRejected threw, so return a rejected promise. $p->reject($e); } } }); return $p; } public function otherwise(callable $onRejected) : PromiseInterface { return $this->then(null, $onRejected); } public function wait(bool $unwrap = \true) { if ($unwrap) { throw Create::exceptionFor($this->reason); } return null; } public function getState() : string { return self::REJECTED; } public function resolve($value) : void { throw new \LogicException('Cannot resolve a rejected promise'); } public function reject($reason) : void { if ($reason !== $this->reason) { throw new \LogicException('Cannot reject a rejected promise'); } } public function cancel() : void { // pass } }