private bool PrepareFunctionArguments(CalcFunctionExpression expr, CalcEvaluatorContext context, out CalcFunction func, out object[] args, out List <int> expandArrayArgIndex, out object error)
{
if (!this.TryGetFunction(expr, context, out func, out error))
{
args = null;
expandArrayArgIndex = null;
return(false);
}
expandArrayArgIndex = new List <int>();
int argCount = expr.ArgCount;
args = new object[argCount];
error = null;
if (func.IsBranch)
{
int i = func.FindTestArgument();
if ((i >= 0) && (i < argCount))
{
object obj2;
if (!this.EvaluateFunctionArgument(expr.GetArg(i), context, func.AcceptsArray(i), func.AcceptsReference(i), func.AcceptsError(i), func.AcceptsMissingArgument(i), out obj2))
{
error = obj2;
expandArrayArgIndex = null;
return(false);
}
if ((context != null) && !context.ArrayFormulaMode)
{
if (obj2 is CalcReference)
{
obj2 = this.ExtractValueFromReference(obj2 as CalcReference, context.Row, context.Column);
if (!func.AcceptsError(i) && (obj2 is CalcError))
{
error = obj2;
expandArrayArgIndex = null;
return(false);
}
if (!func.AcceptsMissingArgument(i) && (obj2 is CalcMissingArgument))
{
obj2 = null;
}
}
else if ((obj2 is CalcArray) && !func.AcceptsArray(i))
{
if (!context.ExpandArrayToMultiCall)
{
obj2 = CalcHelper.GetArrayValue(obj2 as CalcArray, 0, 0);
if (!func.AcceptsError(i) && (obj2 is CalcError))
{
error = obj2;
expandArrayArgIndex = null;
return(false);
}
if (!func.AcceptsMissingArgument(i) && (obj2 is CalcMissingArgument))
{
obj2 = null;
}
}
else
{
expandArrayArgIndex.Add(i);
}
}
}
args[i] = obj2;
}
List <int> list = new List <int>();
CalcArray array = CalcConvert.ToArray(args[i]);
for (int j = 0; j < array.RowCount; j++)
{
for (int k = 0; k < array.ColumnCount; k++)
{
int item = -1;
try
{
item = func.FindBranchArgument(array.GetValue(j, k));
}
catch (InvalidCastException)
{
}
if (item != -1)
{
if (!list.Contains(item))
{
list.Add(item);
}
if (list.Count >= (func.MaxArgs - 1))
{
break;
}
}
}
}
if (list.Count == 0)
{
error = CalcErrors.Value;
expandArrayArgIndex = null;
return(false);
}
foreach (int num6 in list)
{
if ((num6 >= 0) && (num6 < argCount))
{
object obj3;
if (!this.EvaluateFunctionArgument(expr.GetArg(num6), context, func.AcceptsArray(num6), func.AcceptsReference(num6), func.AcceptsError(num6), func.AcceptsMissingArgument(num6), out obj3))
{
error = obj3;
expandArrayArgIndex = null;
return(false);
}
if (((context != null) && !context.ArrayFormulaMode) && ((obj3 is CalcArray) && !func.AcceptsArray(num6)))
{
if (!context.ExpandArrayToMultiCall)
{
obj3 = CalcHelper.GetArrayValue(obj3 as CalcArray, 0, 0);
if (!func.AcceptsError(num6) && (obj3 is CalcError))
{
error = obj3;
expandArrayArgIndex = null;
return(false);
}
if (!func.AcceptsMissingArgument(num6) && (obj3 is CalcMissingArgument))
{
obj3 = null;
}
}
else
{
expandArrayArgIndex.Add(num6);
}
}
args[num6] = obj3;
}
}
if (expandArrayArgIndex.Count > 0)
{
expandArrayArgIndex.Sort();
}
}
else
{
for (int m = 0; m < argCount; m++)
{
object obj4;
if (!this.EvaluateFunctionArgument(expr.GetArg(m), context, func.AcceptsArray(m), func.AcceptsReference(m), func.AcceptsError(m), func.AcceptsMissingArgument(m), out obj4))
{
error = obj4;
expandArrayArgIndex = null;
return(false);
}
if (((context != null) && !context.ArrayFormulaMode) && ((obj4 is CalcArray) && !func.AcceptsArray(m)))
{
if (!context.ExpandArrayToMultiCall)
{
obj4 = CalcHelper.GetArrayValue(obj4 as CalcArray, 0, 0);
if (!func.AcceptsError(m) && (obj4 is CalcError))
{
error = obj4;
expandArrayArgIndex = null;
return(false);
}
if (!func.AcceptsMissingArgument(m) && (obj4 is CalcMissingArgument))
{
obj4 = null;
}
}
else
{
expandArrayArgIndex.Add(m);
}
}
args[m] = obj4;
}
}
return(true);
}