Metabor\Statemachine\Statemachine::doCheckTransitions PHP Метод

    protected function doCheckTransitions(\ArrayAccess $context, EventInterface $event = null)
    {
        try {
            $transitions = $this->currentState->getTransitions();
            $activeTransitions = new ActiveTransitionFilter($transitions, $this->getSubject(), $context, $event);
            $this->selectedTransition = $this->transitonSelector->selectTransition($activeTransitions);
            if ($this->selectedTransition) {
                $targetState = $this->selectedTransition->getTargetState();
                if ($this->currentState != $targetState) {
                    $this->lastState = $this->currentState;
                    $this->currentState = $targetState;
                    $this->currentContext = $context;
                    $this->currentEvent = $event;
                    $this->notify();
                    $this->currentContext = null;
                    $this->currentEvent = null;
                    $this->selectedTransition = null;
                    $this->lastState = null;
                }
                $this->checkTransitions($context);
            }
        } catch (\Exception $exception) {
            $message = 'Exception was thrown when doing a transition from current state "' . $this->currentState->getName() . '"';
            if ($this->currentEvent instanceof NamedInterface) {
                $message .= ' with event "' . $this->currentEvent->getName() . '"';
            }
            throw new \RuntimeException($message, 0, $exception);
        }
    }