Axiom.Runtime.Builtins.Meta.IntegerPredicate.Execute C# (CSharp) Метод

        public override void Execute(AbstractMachineState state)
        {
            AMProgram program = (AMProgram)state.Program;

            AbstractTerm X0 = ((AbstractTerm)state["X0"]).Dereference();

            if (X0.IsConstant)
            {
                string constantData = (string)X0.Data();
                int v;

                if (Int32.TryParse(constantData, out v))
                {
                    program.Next();
                }
                else
                {
                    state.Backtrack();
                    return;
                }

            }
            else
            {
                state.Backtrack();
            }
        }