public HashSet<ulong> GetAllPartiallyMatchingSequences1(params ulong[] sequence) { return _sync.ExecuteReadOperation(() => { if (sequence.Length > 0) { EnsureEachLinkExists(_links, sequence); var results = new HashSet<ulong>(); for (int i = 0; i < sequence.Length; i++) AllUsagesCore(sequence[i], results); var filteredResults = new HashSet<ulong>(); var matcher = new Matcher(this, sequence, filteredResults); matcher.AddAllPartialMatchedToResults(results); return filteredResults; } return new HashSet<ulong>(); }); }