public override double VisitLogicalExpr(MyExelParser.LogicalExprContext context) { var left = WalkLeft(context); var right = WalkRight(context); switch (context.operatorToken.Type) { case MyExelLexer.GREATER: return(Convert.ToDouble(left > right)); case MyExelLexer.LESS: return(Convert.ToDouble(left < right)); case MyExelLexer.EQUAL: return(Convert.ToDouble(left == right)); default: return(0.0); } }
/// <summary> /// Exit a parse tree produced by the <c>LogicalExpr</c> /// labeled alternative in <see cref="MyExelParser.expression"/>. /// <para>The default implementation does nothing.</para> /// </summary> /// <param name="context">The parse tree.</param> public virtual void ExitLogicalExpr([NotNull] MyExelParser.LogicalExprContext context) { }
/// <summary> /// Visit a parse tree produced by the <c>LogicalExpr</c> /// labeled alternative in <see cref="MyExelParser.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 VisitLogicalExpr([NotNull] MyExelParser.LogicalExprContext context) { return(VisitChildren(context)); }