public Argument Evaluate()
{
if (Arguments[1].CanEvaluate)
{
INumericalTypeOperator numericalOperator = new NumberOperator();
NumericalOperator operation = (NumericalOperator)Arguments[1].Evaluateble.Evaluate().Value;
// Numbers default to 0, if an argument is not given
object l = Arguments[0].Evaluateble?.Evaluate().Value ?? 0;
object r = Arguments[2].Evaluateble?.Evaluate().Value ?? 0;
// If the operation is a division and the divisor is 0, throw a DivideByZeroException
if (operation == NumericalOperator.Division && (float)r == 0)
{
throw new System.DivideByZeroException();
}
object value = EvaluateOperation(l, r, numericalOperator, operation);
return(new Argument(value, ResultingType));
}
else
{
throw new CodeblockOperatorException("The codeblock arguments do not contain an operation.");
}
}
private object EvaluateOperation(object l, object r, INumericalTypeOperator numericalOperator, NumericalOperator operation)
{
switch (operation)
{
case NumericalOperator.Addition: return(numericalOperator.Add(l, r));
case NumericalOperator.Subtraction: return(numericalOperator.Subtract(l, r));
case NumericalOperator.Multiplication: return(numericalOperator.Multiply(l, r));
case NumericalOperator.Division: return(numericalOperator.Divide(l, r));
default: throw new CodeblockOperatorException("An invalid operator was passed to the codeblock.");
}
}