public override int VisitAdditionSubtraction(GrammarParser.AdditionSubtractionContext context) { int l = Left(context), r = Right(context); int ans = 0; if (context.operation.Type == GrammarLexer.MINUS_SIGN) { ans = l - r; Console.WriteLine($"minus {ans}"); } else if (context.operation.Type == GrammarLexer.PLUS_SIGN) { ans = l + r; Console.WriteLine($"plus {ans}"); } return(ans); }
/// <summary> /// Visit a parse tree produced by the <c>AdditionSubtraction</c> /// labeled alternative in <see cref="GrammarParser.expression"/>. /// <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 VisitAdditionSubtraction([NotNull] GrammarParser.AdditionSubtractionContext context) { return(VisitChildren(context)); }
/// <summary> /// Exit a parse tree produced by the <c>AdditionSubtraction</c> /// labeled alternative in <see cref="GrammarParser.expression"/>. /// <para>The default implementation does nothing.</para> /// </summary> /// <param name="context">The parse tree.</param> public virtual void ExitAdditionSubtraction([NotNull] GrammarParser.AdditionSubtractionContext context) { }