internal PathSegment(Substring segment, ChainSegment[] chain) : this()
{
IsNotEmpty = segment.Length != 0;
IsParent = IsNotEmpty && segment == "..";
IsThis = IsNotEmpty && !IsParent && (segment == "." || Substring.EqualsIgnoreCase(segment, ThisSubstring));
PathChain = chain;
_hashCode = GetHashCodeImpl();
}