/// <summary>
/// Evaluates the specified args.
/// </summary>
/// <param name="args">The args.</param>
/// <returns></returns>
public decimal Evaluate(IToken[] args)
{
if (args == null)
{
throw new ArgumentNullException("args");
}
else if (args.Length != this._argumentCount)
{
throw new ArgumentException(string.Format("The number of arguments should equal {0}.", this._argumentCount), "args");
}
decimal[] numbers = args.ConvertToDecimalArray();
decimal result = 0.0M;
switch(this._operatorType)
{
case OperatorType.Add:
result = Add(numbers);
break;
case OperatorType.Divide:
result = Divide(numbers);
break;
case OperatorType.Modulo:
result = Modulo(numbers);
break;
case OperatorType.Multiply:
result = Multiply(numbers);
break;
case OperatorType.RaiseTo:
result = RaiseTo(numbers);
break;
case OperatorType.Subtract:
result = Subtract(numbers);
break;
case OperatorType.UnaryMinus:
result = UnaryMinus(numbers);
break;
default:
throw new InvalidOperationException(string.Format("Unsupported operator type '{0}'.", this._operatorType));
}
return result;
}