/// <summary>
/// Get or create a client EDM type instance.
/// </summary>
/// <param name="type">type to wrap</param>
/// <returns>client type</returns>
private EdmTypeCacheValue GetOrCreateEdmTypeInternal(Type type)
{
Debug.Assert(type != null, "type != null");
EdmTypeCacheValue cachedEdmType;
lock (this.clrToEdmTypeCache)
{
this.clrToEdmTypeCache.TryGetValue(type, out cachedEdmType);
}
if (cachedEdmType == null)
{
if (PrimitiveType.IsKnownNullableType(type))
{
cachedEdmType = this.GetOrCreateEdmTypeInternal(null /*baseType*/, type, ClientTypeUtil.EmptyPropertyInfoArray, false /*isEntity*/, false /*hasProperties*/);
}
else
{
PropertyInfo[] keyProperties;
bool hasProperties;
Type[] hierarchy = ClientEdmModel.GetTypeHierarchy(type, out keyProperties, out hasProperties);
Debug.Assert(keyProperties == null || keyProperties.Length == 0 || keyProperties.All(p => p.DeclaringType == keyProperties[0].DeclaringType), "All key properties must be declared on the same type.");
bool isEntity = keyProperties != null;
keyProperties = keyProperties ?? ClientTypeUtil.EmptyPropertyInfoArray;
foreach (Type t in hierarchy)
{
// Pass in the full list of key properties for the most base type to be added there. We only allow key properties to be
// declared on the same type.
IEdmStructuredType edmBaseType = cachedEdmType == null ? null : cachedEdmType.EdmType as IEdmStructuredType;
cachedEdmType = this.GetOrCreateEdmTypeInternal(edmBaseType, t, keyProperties, isEntity, t == type ? hasProperties : (bool?)null);
// Pass in an empty PropertyInfo array on subsequent derived types.
keyProperties = ClientTypeUtil.EmptyPropertyInfoArray;
}
}
}
Debug.Assert(cachedEdmType != null, "cachedEdmType != null");
return(cachedEdmType);
}