Antlr4.Runtime.DiagnosticErrorListener.GetConflictingAlts C# (CSharp) Method

        protected internal virtual BitSet GetConflictingAlts(BitSet reportedAlts, ATNConfigSet configSet)
        {
            if (reportedAlts != null)
            {
                return reportedAlts;
            }
            BitSet result = new BitSet();
            foreach (ATNConfig config in configSet.configs)
            {
                result.Set(config.alt);
            }
            return result;
        }