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));
}