public override Node VisitArithmetic([NotNull] TigerParser.ArithmeticContext context) { ArithmeticNode node; switch (context.op.Text) { case "*": node = new MulNode(context); break; case "/": node = new DivNode(context); break; case "+": node = new PlusNode(context); break; case "-": node = new MinusNode(context); break; default: throw new NotSupportedException(); } node.Children.Add(Visit(context.expr(0))); // LEFT EXPRESSION node.Children.Add(Visit(context.expr(1))); // RIGHT EXPRESSION return(node); }
/// <summary> /// Visit a parse tree produced by the <c>Arithmetic</c> /// labeled alternative in <see cref="TigerParser.expr"/>. /// <para> /// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/> /// on <paramref name="context"/>. /// </para> /// </summary> /// <param name="context">The parse tree.</param> /// <return>The visitor result.</return> public virtual Result VisitArithmetic([NotNull] TigerParser.ArithmeticContext context) { return(VisitChildren(context)); }