src/Viserio/Component/Routing/TreeGenerator/RouteTreeBuilder.php
private function getMatcher($firstSegment, array &$parameterIndexNameMap): SegmentMatcherContract
    {
        if ($firstSegment instanceof ParameterMatcher) {
            return $firstSegment->getMatcher($parameterIndexNameMap);
        }

        return $firstSegment;
    }
private function getMatcher($firstSegment, array &$parameterIndexNameMap): SegmentMatcherContract
    {
        if ($firstSegment instanceof ParameterMatcher) {
            return $firstSegment->getMatcher($parameterIndexNameMap);
        }

        return $firstSegment;
    }
Get the right Matcher.

@param \Viserio\Component\Contract\Routing\SegmentMatcher|\Viserio\Component\Routing\Matcher\ParameterMatcher $firstSegment
@param array                                                                                                  $parameterIndexNameMap

@return \Viserio\Component\Contract\Routing\SegmentMatcher