public LinkIndex Each(Func <IList <LinkIndex>, LinkIndex> handler, IList <LinkIndex> restrictions)
{
return(_sync.ExecuteReadOperation(() =>
{
if (restrictions.IsNullOrEmpty())
{
return Constants.Continue;
}
Links.EnsureInnerReferenceExists(restrictions, nameof(restrictions));
if (restrictions.Count == 1)
{
var link = restrictions[0];
var any = Constants.Any;
if (link == any)
{
if (Options.UseSequenceMarker)
{
return Links.Unsync.Each(handler, new Link <LinkIndex>(any, Options.SequenceMarkerLink, any));
}
else
{
return Links.Unsync.Each(handler, new Link <LinkIndex>(any, any, any));
}
}
if (Options.UseSequenceMarker)
{
var sequenceLinkValues = Links.Unsync.GetLink(link);
if (sequenceLinkValues[Constants.SourcePart] == Options.SequenceMarkerLink)
{
link = sequenceLinkValues[Constants.TargetPart];
}
}
var sequence = Options.Walker.Walk(link).ToArray().ShiftRight();
sequence[0] = link;
return handler(sequence);
}
else if (restrictions.Count == 2)
{
throw new NotImplementedException();
}
else if (restrictions.Count == 3)
{
return Links.Unsync.Each(handler, restrictions);
}
else
{
var sequence = restrictions.SkipFirst();
if (Options.UseIndex && !Options.Index.MightContain(sequence))
{
return Constants.Break;
}
return EachCore(handler, sequence);
}
}));
}
public LinkIndex Compact(IList <LinkIndex> sequence)
{
return(_sync.ExecuteWriteOperation(() =>
{
if (sequence.IsNullOrEmpty())
{
return Constants.Null;
}
Links.EnsureInnerReferenceExists(sequence, nameof(sequence));
return CompactCore(sequence);
}));
}
public LinkIndex Create(IList <LinkIndex> restrictions)
{
return(_sync.ExecuteWriteOperation(() =>
{
if (restrictions.IsNullOrEmpty())
{
return Constants.Null;
}
Links.EnsureInnerReferenceExists(restrictions, nameof(restrictions));
return CreateCore(restrictions);
}));
}