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<?php
declare(strict_types=1);
namespace Dflydev\FiniteStateMachine\TransitionEvent;
use Dflydev\FiniteStateMachine\Contracts\TransitionEventCallback;
use Dflydev\FiniteStateMachine\Contracts\TransitionEventCallbackFactory;
class TransitionEventCallbackResolver
{
private array $transitionEventCallbackFactories;
public function __construct(TransitionEventCallbackFactory ...$transitionEventCallbackFactories)
$this->transitionEventCallbackFactories = $transitionEventCallbackFactories + static::defaultTransitionEventCallbackFactories();
}
public function register(TransitionEventCallbackFactory $transitionEventCallbackFactory): void
$this->transitionEventCallbackFactories[] = $transitionEventCallbackFactory;
/**
* @param mixed $do
*/
public function resolve($do): TransitionEventCallback
foreach ($this->transitionEventCallbackFactories as $transitionEventCallbackFactory) {
if ($transitionEventCallbackFactory->supports($do)) {
return $transitionEventCallbackFactory->build($do);
throw new \RuntimeException('Could not resolve transition event callback');
public static function defaultTransitionEventCallbackFactories(): array
return [
new CallableTransitionEventCallbackFactory(),
];
dflydev /
dflydev-finite-state-machine
