private static object AvgHandler(object[] arguments)
{
var sum = 0m;
var array = arguments.Length > 0 ? (arguments[0] as IEnumerable ?? new object[0]) : new object[0];
var length = 0;
foreach (var argument in array)
{
length++;
if (argument.IsDigit())
{
sum = GetAddToDecimalFunction(argument.GetType())(sum, argument);
}
else
{
throw new UnsupportedFunctionCallException("avg", arguments.Select(x => x?.GetType()));
}
}
if (length == 0)
{
throw new UnsupportedFunctionCallException("avg");
}
return(sum / length);
}
private static object SumHandler(object[] arguments)
{
var array = arguments.Length > 0 ? (arguments[0] as IEnumerable ?? new object[0]) : new object[0];
var hasElement = false;
var sum = 0m;
foreach (var argument in array)
{
hasElement = true;
if (argument.IsDigit())
{
sum = GetAddToDecimalFunction(argument.GetType())(sum, argument);
}
else
{
throw new UnsupportedFunctionCallException("sum", arguments.Select(x => x?.GetType()));
}
}
if (!hasElement)
{
throw new UnsupportedFunctionCallException("sum");
}
return(sum);
}
