internal override void Visit(
VarRefColumnMap columnMap,
HashSet <string> typesNeedingNullSentinel)
{
StructuredTypeNullabilityAnalyzer.AddTypeNeedingNullSentinel(typesNeedingNullSentinel, columnMap.Type);
base.Visit(columnMap, typesNeedingNullSentinel);
}
private static void AddTypeNeedingNullSentinel(
HashSet <string> typesNeedingNullSentinel,
TypeUsage typeUsage)
{
if (TypeSemantics.IsCollectionType(typeUsage))
{
StructuredTypeNullabilityAnalyzer.AddTypeNeedingNullSentinel(typesNeedingNullSentinel, TypeHelpers.GetElementTypeUsage(typeUsage));
}
else
{
if (TypeSemantics.IsRowType(typeUsage) || TypeSemantics.IsComplexType(typeUsage))
{
StructuredTypeNullabilityAnalyzer.MarkAsNeedingNullSentinel(typesNeedingNullSentinel, typeUsage);
}
foreach (EdmMember structuralMember in (IEnumerable)TypeHelpers.GetAllStructuralMembers(typeUsage))
{
StructuredTypeNullabilityAnalyzer.AddTypeNeedingNullSentinel(typesNeedingNullSentinel, structuralMember.TypeUsage);
}
}
}
