Exemplo n.º 1
0
        // Returns NExprAdd or any of subproduction nodes
        public Node ExprAdd()
        {
            Node resultingNode = ExprMul();

            while (CurrentToken == TokenCategory.SUBTRACTION || CurrentToken == TokenCategory.ADDITION)
            {
                NExprAdd tmp = new NExprAdd();
                tmp.Add(resultingNode);
                resultingNode = tmp;
                switch (CurrentToken)
                {
                case TokenCategory.SUBTRACTION: {
                    resultingNode.AnchorToken = Expect(TokenCategory.SUBTRACTION);
                    resultingNode.Add(ExprMul());
                    break;
                }

                case TokenCategory.ADDITION: {
                    resultingNode.AnchorToken = Expect(TokenCategory.ADDITION);
                    resultingNode.Add(ExprMul());
                    break;
                }
                    // Default case would be unreachable
                }
            }
            return(resultingNode);
        }
Exemplo n.º 2
0
        public string Visit(NExprAdd nExprAdd)
        {
            string retVal = "";

            if (nExprAdd.children.Count == 1)
            {
                retVal += Visit((dynamic)nExprAdd[0]);
            }
            else
            {
                switch (nExprAdd.AnchorToken.Lexeme)
                {
                case "+": {
                    retVal += Visit((dynamic)nExprAdd[0]);
                    retVal += Visit((dynamic)nExprAdd[1]);
                    retVal += "\t\tadd\n";
                    break;
                }

                case "-": {
                    retVal += Visit((dynamic)nExprAdd[0]);
                    retVal += Visit((dynamic)nExprAdd[1]);
                    retVal += "\t\tsub\n";
                    break;
                }
                }
            }
            return(retVal);
        }
Exemplo n.º 3
0
//-----------------------------------------------------------
        public void Visit(NExprAdd node)
        {
            Console.WriteLine($"+++++++++++++++ NExprAdd ++++++++++++++++");
            VisitBinaryOperator('+', node /*, Type.INT*/);
        }
 public void Visit(NExprAdd nExprAdd)
 {
     GenericChildVisitor(nExprAdd);
 }