henzeb/enumhancer

<?php

namespace Henzeb\Enumhancer\Exceptions;

use UnitEnum;

class IllegalEnumTransitionException extends EnumException
{
    public function __construct(UnitEnum $from, UnitEnum $transitionTo)
    {
        parent::__construct(
            sprintf('Transition from `%s` to `%s` is not allowed!', $from->name, $transitionTo->name)
        );
    }
}