public void CloneInto(CollectionItemIdentifiers target, IReadOnlyDictionary <object, object> referenceTypeClonedKeys)
{
target.keyToIdMap.Clear();
target.deletedItems.Clear();
foreach (var key in keyToIdMap)
{
object clonedKey;
if (key.Key.GetType().IsValueType || referenceTypeClonedKeys == null)
{
target.Add(key.Key, key.Value);
}
else if (referenceTypeClonedKeys.TryGetValue(key.Key, out clonedKey))
{
target.Add(clonedKey, key.Value);
}
else
{
throw new KeyNotFoundException("Unable to find the non-value type key in the dictionary of cloned keys.");
}
}
foreach (var deletedItem in DeletedItems)
{
target.MarkAsDeleted(deletedItem);
}
}
public static bool TryGetCollectionItemIds(object instance, out CollectionItemIdentifiers itemIds)
{
var shadow = ShadowObject.Get(instance);
if (shadow == null)
{
itemIds = null;
return(false);
}
object result;
itemIds = shadow.TryGetValue(CollectionItemIdKey, out result) ? (CollectionItemIdentifiers)result : null;
return(result != null);
}
public static CollectionItemIdentifiers GetCollectionItemIds(object instance)
{
if (instance.GetType().IsValueType)
{
throw new ArgumentException(@"The given instance is a value type and cannot have a item ids attached to it.", nameof(instance));
}
var shadow = ShadowObject.GetOrCreate(instance);
object result;
if (shadow.TryGetValue(CollectionItemIdKey, out result))
{
return((CollectionItemIdentifiers)result);
}
var itemIds = new CollectionItemIdentifiers();
shadow.Add(CollectionItemIdKey, itemIds);
return(itemIds);
}
