Antlr4.Runtime.Atn.LexerATNSimulator.MatchATN C# (CSharp) Method

        protected int MatchATN(ICharStream input)
        {
            ATNState startState = atn.modeToStartState[mode];

            if (debug)
            {
                Console.WriteLine("matchATN mode " + mode + " start: " + startState);
            }

            int old_mode = mode;

            ATNConfigSet s0_closure = ComputeStartState(input, startState);
            bool suppressEdge = s0_closure.hasSemanticContext;
            s0_closure.hasSemanticContext = false;

            DFAState next = AddDFAState(s0_closure);
            if (!suppressEdge)
            {
                decisionToDFA[mode].s0 = next;
            }

            int predict = ExecATN(input, next);

            if (debug)
            {
                Console.WriteLine("DFA after matchATN: " + decisionToDFA[old_mode].ToString());
            }

            return predict;
        }