AppsheetEpplus/FormulaParsing/Excel/Functions/ErrorHandlingFunction.cs

/* Copyright (C) 2011  Jan Källman
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.

 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * The GNU Lesser General Public License can be viewed at http://www.opensource.org/licenses/lgpl-license.php
 * If you unfamiliar with this license or have questions about it, here is an http://www.gnu.org/licenses/gpl-faq.html
 *
 * All code and executables are provided "as is" with no warranty either express or implied.
 * The author accepts no liability for any damage or loss of business that this product may cause.
 *
 * Code change notes:
 *
 * Author							Change						Date
 *******************************************************************************
 * Mats Alm   		                Added		                2013-12-03
 *******************************************************************************/


namespace AppsheetEpplus;

/// <summary>
/// Base class for functions that handles an error that occurs during the
/// normal execution of the function.
/// If an exception occurs during the Execute-call that exception will be
/// caught by the compiler, then the HandleError-method will be called.
/// </summary>
public abstract class ErrorHandlingFunction : ExcelFunction {
  /// <summary>
  /// Indicates that the function is an ErrorHandlingFunction.
  /// </summary>
  public override bool IsErrorHandlingFunction => true;

  /// <summary>
  /// Method that should be implemented to handle the error.
  /// </summary>
  /// <param name="errorCode"></param>
  /// <returns></returns>
  public abstract CompileResult HandleError(string errorCode);
}