Antlr4.Runtime.Dfa.DFA.GetPrecedenceStartState C# (CSharp) Метод

        public DFAState GetPrecedenceStartState(int precedence)
        {
            if (!IsPrecedenceDfa)
            {
                throw new Exception("Only precedence DFAs may contain a precedence start state.");
            }

            // s0.edges is never null for a precedence DFA
            if (precedence < 0 || precedence >= s0.edges.Length)
            {
                return null;
            }

            return s0.edges[precedence];
        }