izzum\statemachine\StateMachine::addTransitionWithoutRegex PHP Method

    protected function addTransitionWithoutRegex(Transition $transition)
    {
        // don't allow transitions from a final state
        if ($transition->getStateFrom()->isFinal()) {
            return false;
        }
        // add the transition only if it already exists (no overwrites)
        if ($this->getTransition($transition->getName()) !== null) {
            return false;
        }
        $this->transitions[$transition->getName()] = $transition;
        $from = $transition->getStateFrom();
        // adds state only if it does not already exist (no overwrites)
        $this->addState($from);
        /* 
         * transitions create bidirectional references to the States
         * when they are made, but here the States that are set on the machine
         * can actually be different instances from different transitions (eg:
         * a->b and a->c => we now have two State instances of a)
         * we therefore need to merge the transitions on the existing states.
         * The LoaderArray class does this for us by default, but we do it here
         * too, just in case a client decides to call the 'addTransition' method
         * directly without a loader.
         */
        //get the state known to the machine, to prevent possible bug where client
        //creates 2 different state instances with different configs. we won't know
        //how to resolve this anyway, so just pick the existing state (first in wins)
        $state = $this->getState($from->getName());
        // adds transition only if it does not already exist (no overwrites)
        $state->addTransition($transition);
        $to = $transition->getStateTo();
        // adds state only if it dooes not already exist (no overwrites)
        $this->addState($to);
        return true;
    }