private static object PerformBinaryOp(ExpressionEval.BinaryOp op, object v1, object v2) { IExpression expression1 = v1 as IExpression; if (expression1 != null) { v1 = expression1.Evaluate(); } IExpression expression2 = v2 as IExpression; if (expression2 != null) { v2 = expression2.Evaluate(); } switch (op.Op) { case "!=": case "+": case "-": case "<": case "<=": case "=": case "==": case ">": case ">=": return(ExpressionEval.DoSpecialOperator(op, v1, v2)); case "%": return((object)(Convert.ToInt64(v1, (IFormatProvider)CultureInfo.CurrentCulture) % Convert.ToInt64(v2, (IFormatProvider)CultureInfo.CurrentCulture))); case "&": return((object)(ulong)((long)Convert.ToUInt64(v1, (IFormatProvider)CultureInfo.CurrentCulture) & (long)Convert.ToUInt64(v2, (IFormatProvider)CultureInfo.CurrentCulture))); case "&&": return((object)(bool)(!Convert.ToBoolean(v1, (IFormatProvider)CultureInfo.CurrentCulture) ? false : (Convert.ToBoolean(v2, (IFormatProvider)CultureInfo.CurrentCulture) ? true : false))); case "*": return((object)(Convert.ToDouble(v1, (IFormatProvider)CultureInfo.CurrentCulture) * Convert.ToDouble(v2, (IFormatProvider)CultureInfo.CurrentCulture))); case "/": return((object)(Convert.ToDouble(v1, (IFormatProvider)CultureInfo.CurrentCulture) / Convert.ToDouble(v2, (IFormatProvider)CultureInfo.CurrentCulture))); case "<<": return((object)(Convert.ToInt64(v1, (IFormatProvider)CultureInfo.CurrentCulture) << Convert.ToInt32(v2, (IFormatProvider)CultureInfo.CurrentCulture))); case ">>": return((object)(Convert.ToInt64(v1, (IFormatProvider)CultureInfo.CurrentCulture) >> Convert.ToInt32(v2, (IFormatProvider)CultureInfo.CurrentCulture))); case "^": return((object)(ulong)((long)Convert.ToUInt64(v1, (IFormatProvider)CultureInfo.CurrentCulture) ^ (long)Convert.ToUInt64(v2, (IFormatProvider)CultureInfo.CurrentCulture))); case "|": return((object)(ulong)((long)Convert.ToUInt64(v1, (IFormatProvider)CultureInfo.CurrentCulture) | (long)Convert.ToUInt64(v2, (IFormatProvider)CultureInfo.CurrentCulture))); case "||": return((object)(bool)(Convert.ToBoolean(v1, (IFormatProvider)CultureInfo.CurrentCulture) ? true : (Convert.ToBoolean(v2, (IFormatProvider)CultureInfo.CurrentCulture) ? true : false))); default: throw new ArgumentException("Binary Operator " + op.Op + "not defined."); } }