public function passLetStatement($branchNumber, $statement)
    {
        foreach ($statement['assignments'] as $assignment) {
            if ('variable' == $assignment['assign-type']) {
                if ('assign' == $assignment['operator']) {
                    switch ($assignment['expr']['type']) {
                        case 'variable':
                        case 'array-access':
                        case 'property-access':
                        case 'static-property-access':
                        case 'fcall':
                        case 'mcall':
                        case 'scall':
                            break;
                        default:
                            $this->variablesToSkip[$branchNumber][$assignment['variable']] = 1;
                            break;
                    }
                }
            }
        }
    }