public override double VisitAddSubExp(SpreadsheetParser.AddSubExpContext context)
{
double left = Visit(context.expression(0));
double right = Visit(context.expression(1));
double result = 0;
if (context.PLUS() != null)
{
result = left + right;
}
if (context.MINUS() != null)
{
result = left - right;
}
return(result);
}
/// <summary>
/// Exit a parse tree produced by the <c>addSubExp</c>
/// labeled alternative in <see cref="SpreadsheetParser.expression"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitAddSubExp([NotNull] SpreadsheetParser.AddSubExpContext context)
{
}
/// <summary>
/// Visit a parse tree produced by the <c>addSubExp</c>
/// labeled alternative in <see cref="SpreadsheetParser.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 VisitAddSubExp([NotNull] SpreadsheetParser.AddSubExpContext context)
{
return(VisitChildren(context));
}
