public virtual Differences VisitQuerySelect(QuerySelect select1, QuerySelect select2){
Differences differences = new Differences(select1, select2);
if (select1 == null || select2 == null){
if (select1 != select2) differences.NumberOfDifferences++; else differences.NumberOfSimilarities++;
return differences;
}
QuerySelect changes = (QuerySelect)select2.Clone();
QuerySelect deletions = (QuerySelect)select2.Clone();
QuerySelect insertions = (QuerySelect)select2.Clone();
// select1.Access;
// select1.Direction;
// select1.Source;
if (differences.NumberOfDifferences == 0){
differences.Changes = null;
differences.Deletions = null;
differences.Insertions = null;
}else{
differences.Changes = changes;
differences.Deletions = deletions;
differences.Insertions = insertions;
}
return differences;
}
public override Node VisitQuerySelect(QuerySelect select){
if (select == null) return null;
return base.VisitQuerySelect((QuerySelect)select.Clone());
}
