private void ValidateUnaryExpression(UnaryExpression expression)
{
DataType operandType = expression.Operand.GetType(_symbolTable);
if (operandType != DataType.Undefined)
{
if (!expression.OperandTypeIsValid(operandType))
{
Report.AddError(expression.Position, "Operator '{0}' can not be applied to operand of type '{1}'.",
StringEnum.GetStringValue(expression.Operation), operandType);
}
}
}