*/ private Internal\State $state; /** * @var Awaitable */ private Awaitable $awaitable; public function __construct() { $this->state = new Internal\State(); $this->awaitable = new Awaitable($this->state); } /** * Completes the operation with a result value. * * @param T $result Result of the operation. * * @throws Psl\Exception\InvariantViolationException If the operation is no longer pending. */ public function complete(mixed $result): void { $this->state->complete($result); } /** * Marks the operation as failed. * * @param Throwable $throwable Throwable to indicate the error. * * @throws Psl\Exception\InvariantViolationException If the operation is no longer pending. */ public function error(Throwable $throwable): void { $this->state->error($throwable); } /** * @return bool True if the operation has completed. */ public function isComplete(): bool { return $this->state->isComplete(); } /** * @return Awaitable The awaitable associated with this Deferred. */ public function getAwaitable(): Awaitable { return $this->awaitable; } }