/// <inheritdoc/>
protected override Provider VisitExistence(ExistenceProvider provider)
{
OnRecursionEntrance(provider);
var source = VisitCompilable(provider.Source);
OnRecursionExit(provider);
if (source == provider.Source)
{
return(provider);
}
return(new ExistenceProvider(source, provider.ExistenceColumnName));
}
/// <summary> /// Visits <see cref="ExistenceProvider"/>. /// </summary> /// <param name="provider">Existence provider.</param> protected abstract Provider VisitExistence(ExistenceProvider provider);