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[12074] | 1 | using System;
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| 2 | using System.Collections.Generic;
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| 3 | using System.Linq;
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| 4 | using System.Text;
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| 5 | using OfficeOpenXml.FormulaParsing.Excel.Functions;
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| 6 | using OfficeOpenXml.FormulaParsing.Excel.Functions.Logical;
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| 7 | using OfficeOpenXml.FormulaParsing.Exceptions;
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| 8 | using OfficeOpenXml.FormulaParsing.Utilities;
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| 9 |
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| 10 | namespace OfficeOpenXml.FormulaParsing.ExpressionGraph.FunctionCompilers
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| 11 | {
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| 12 | public class IfErrorFunctionCompiler : FunctionCompiler
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| 13 | {
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| 14 | public IfErrorFunctionCompiler(ExcelFunction function)
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| 15 | : base(function)
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| 16 | {
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| 17 | Require.That(function).Named("function").IsNotNull();
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| 18 |
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| 19 | }
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| 20 |
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| 21 | public override CompileResult Compile(IEnumerable<Expression> children, ParsingContext context)
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| 22 | {
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| 23 | if (children.Count() != 2) throw new ExcelErrorValueException(eErrorType.Value);
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| 24 | var args = new List<FunctionArgument>();
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| 25 | Function.BeforeInvoke(context);
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| 26 | var firstChild = children.First();
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| 27 | var lastChild = children.ElementAt(1);
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| 28 | try
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| 29 | {
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| 30 | var result = firstChild.Compile();
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| 31 | if (result.DataType == DataType.ExcelError)
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| 32 | {
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| 33 | args.Add(new FunctionArgument(lastChild.Compile().Result));
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| 34 | }
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| 35 | else
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| 36 | {
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| 37 | args.Add(new FunctionArgument(result.Result));
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| 38 | }
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| 39 |
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| 40 | }
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| 41 | catch (ExcelErrorValueException ex)
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| 42 | {
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| 43 | args.Add(new FunctionArgument(lastChild.Compile().Result));
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| 44 | }
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| 45 | return Function.Execute(args, context);
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| 46 | }
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| 47 | }
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| 48 | }
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