public static DataType?GetResult(this ArithmeticOperation operation, DataType operand)
{
Contract.Requires(operation.IsUnary());
Contract.Requires(operand.IsStackType());
// ECMA 335 III.1.5 Table 3: Unary Numeric Operations (neg - plus 'not')
switch (operation)
{
case ArithmeticOperation.Negate: return(operand.IsNumericStackType() ? operand : (DataType?)null);
case ArithmeticOperation.BitwiseNot: return(operand.IsIntegerStackType() ? operand : (DataType?)null);
default: throw new ArgumentException("operation");
}
}
