The exceptions to rulings or orders of the court during the trial are hereby abolished. For all purposes for which an exception has heretofore been necessary, it is sufficient that a party, at the time the ruling or order of the court is made or sought, or when the court issues it, that the party makes known to the court its reasons or objections, and if a party has no opportunity to object to a ruling or order, such omission shall not thereafter prejudice him.