public override Double VisitMinus(CalculatorParser.MinusContext ctx) { return(Visit(ctx.plusOrMinus()) - Visit(ctx.multOrDiv())); }
/// <summary> /// Unary Minus operator /// </summary> /// <param name="context"></param> /// <returns></returns> public override Function VisitMinus(CalculatorParser.MinusContext context) { return(new Constant(-1) * Visit(context.expr())); }
/// <summary> /// Visit a parse tree produced by the <c>Minus</c> /// labeled alternative in <see cref="CalculatorParser.plusOrMinus"/>. /// <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 VisitMinus([NotNull] CalculatorParser.MinusContext context) { return(VisitChildren(context)); }