public static bool IsPartialPoint <TLinkAddress, TConstants>(this ILinks <TLinkAddress, TConstants> links, TLinkAddress link)
where TConstants : LinksConstants <TLinkAddress>
{
if (links.Constants.IsExternalReference(link))
{
return(true);
}
links.EnsureLinkExists(link);
return(Point <TLinkAddress> .IsPartialPoint(links.GetLink(link)));
}
public static TLink GetByKeys <TLink>(this ILinks <TLink> links, TLink root, params int[] path)
{
links.EnsureLinkExists(root, "root");
var currentLink = root;
for (var i = 0; i < path.Length; i++)
{
currentLink = links.GetLink(currentLink)[path[i]];
}
return(currentLink);
}
public static TLink GetSquareMatrixSequenceElementByIndex <TLink>(this ILinks <TLink> links, TLink root, ulong size, ulong index)
{
var constants = links.Constants;
var source = constants.SourcePart;
var target = constants.TargetPart;
if (!Platform.Numbers.Math.IsPowerOfTwo(size))
{
throw new ArgumentOutOfRangeException(nameof(size), "Sequences with sizes other than powers of two are not supported.");
}
var path = new BitArray(BitConverter.GetBytes(index));
var length = Bit.GetLowestPosition(size);
links.EnsureLinkExists(root, "root");
var currentLink = root;
for (var i = length - 1; i >= 0; i--)
{
currentLink = links.GetLink(currentLink)[path[i] ? target : source];
}
return(currentLink);
}
