public virtual Differences VisitQueryRollback(QueryRollback qr1, QueryRollback qr2){
Differences differences = new Differences(qr1, qr2);
if (qr1 == null || qr2 == null){
if (qr1 != qr2) differences.NumberOfDifferences++; else differences.NumberOfSimilarities++;
}else
differences.Changes = null;
return differences;
}
public virtual Node VisitQueryRollback(QueryRollback qr, QueryRollback changes, QueryRollback deletions, QueryRollback insertions){
this.UpdateSourceContext(qr, changes);
if (qr == null) return changes;
if (changes != null){
if (deletions == null || insertions == null)
Debug.Assert(false);
else{
}
}else if (deletions != null)
return null;
return qr;
}
public override Node VisitQueryRollback(QueryRollback qr) {
if (qr == null) return null;
if (this.currentTransaction == null) {
this.HandleError(qr, Error.QueryNotTransacted);
return null;
}
return base.VisitQueryRollback(qr);
}
public virtual Node VisitQueryRollback(QueryRollback qr){
return qr;
}
public virtual void VisitQueryRollback(QueryRollback qr){
}
public override Node VisitQueryRollback(QueryRollback qr){
if (qr == null) return null;
return base.VisitQueryRollback((QueryRollback)qr.Clone());
}
public virtual Node VisitQueryRollback(QueryRollback qr1, QueryRollback qr2){
return qr1;
}
public override Node VisitQueryRollback(QueryRollback qr) {
if (qr == null) return null;
return this.VisitBranch(new Branch(null, this.currentTransaction.RollbackBody));
}
public EventingVisitor(Action<QueryRollback> visitQueryRollback) { VisitedQueryRollback += visitQueryRollback; } public event Action<QueryRollback> VisitedQueryRollback; public override Node VisitQueryRollback(QueryRollback qr) { if (VisitedQueryRollback != null) VisitedQueryRollback(qr); return base.VisitQueryRollback(qr); }
