/// <returns>true if any errors are found at this level or below</returns>
/// Guard against a mistake in the tree that causes infinite recursion.
private static bool GetErrors2(FunctionCalc fnCalc, ref IList <FunCalcError> lowestErrors, ref IList <FunCalcError> allErrors, string NumberFormat, IList <SingleResult> callStack)
{
bool bRet = false;
FunCalcError funCalcError = null;
// ----------------------
if (fnCalc.GetCalcStatus() == CalcStatus.Bad)
{
funCalcError = new FunCalcError(fnCalc.CalcQuantity?.Message, fnCalc);
allErrors.Add(funCalcError);
bRet = true;
}
// ----------------------
bool bFoundLower = false;
foreach (SingleResult input in fnCalc.Inputs)
{
bool bFoundMore = false;
if (input is FunctionCalc)
{
if (callStack.IndexOf(input) >= 0)
{
throw new UnspecifiedException("Infinite recursion in Expression Tree");
}
callStack.Add(input);
bFoundMore = GetErrors2(((FunctionCalc)input), ref lowestErrors, ref allErrors, NumberFormat, callStack);
callStack.Remove(input);
}
else
{
bFoundMore = GetErrors3(input, ref lowestErrors, ref allErrors, NumberFormat);
}
if (bFoundMore)
{
bFoundLower = true;
}
}
// ----------------------
if (bFoundLower)
{
bRet = true;
}
else if (funCalcError != null)
{
lowestErrors.Add(funCalcError);
}
return(bRet);
}
private static bool GetErrors3(SingleResult input, ref IList <FunCalcError> lowestErrors, ref IList <FunCalcError> allErrors, string NumberFormat)
{
bool bRet = false;
if (input?.CalcQuantity?.CalcStatus == CalcStatus.Bad)
{
FunCalcError funCalcError = new FunCalcError(input?.CalcQuantity?.Message, input);
allErrors.Add(funCalcError);
lowestErrors.Add(funCalcError);
bRet = true;
}
return(bRet);
}