public override string ReadMemberName(ref ObjectContext objectContext, string memberName, out bool skipMember)
{
var objectType = objectContext.Instance.GetType();
OverrideType[] overrideTypes;
var realMemberName = TrimAndParseOverride(memberName, out overrideTypes);
// For member names, we have a single override, so we always take the last one of the array (In case of legacy property serialized with ~Name)
var overrideType = overrideTypes[overrideTypes.Length - 1];
if (overrideType != OverrideType.Base)
{
YamlAssetMetadata <OverrideType> overrides;
if (!objectContext.SerializerContext.Properties.TryGetValue(OverrideDictionaryKey, out overrides))
{
overrides = new YamlAssetMetadata <OverrideType>();
objectContext.SerializerContext.Properties.Add(OverrideDictionaryKey, overrides);
}
var path = GetCurrentPath(ref objectContext, true);
path.PushMember(realMemberName);
overrides.Set(path, overrideType);
}
var resultMemberName = base.ReadMemberName(ref objectContext, realMemberName, out skipMember);
return(resultMemberName);
}
public override object ConvertFrom(ref ObjectContext context, Scalar fromScalar)
{
Guid identifier;
if (!TryParse(fromScalar.Value, out identifier))
{
throw new YamlException($"Unable to deserialize reference: [{fromScalar.Value}]");
}
// Add the path to the currently deserialized object to the list of object references
YamlAssetMetadata <Guid> objectReferences;
if (!context.SerializerContext.Properties.TryGetValue(AssetObjectSerializerBackend.ObjectReferencesKey, out objectReferences))
{
objectReferences = new YamlAssetMetadata <Guid>();
context.SerializerContext.Properties.Add(AssetObjectSerializerBackend.ObjectReferencesKey, objectReferences);
}
var path = AssetObjectSerializerBackend.GetCurrentPath(ref context, true);
objectReferences.Set(path, identifier);
// Return default(T)
//return !context.Descriptor.Type.IsValueType ? null : Activator.CreateInstance(context.Descriptor.Type);
// Return temporary proxy instance
var proxy = (IIdentifiable)AbstractObjectInstantiator.CreateConcreteInstance(context.Descriptor.Type);
proxy.Id = identifier;
return(proxy);
}
/// <summary>
/// Updates the paths in the given <see cref="YamlAssetMetadata{T}"/> instance to reflect that new <see cref="Guid"/> have been generated after cloning,
/// when <see cref="AssetClonerFlags.GenerateNewIdsForIdentifiableObjects"/> has been used.
/// </summary>
/// <typeparam name="T">The type of content in the metadata.</typeparam>
/// <param name="metadata">The metadata to update.</param>
/// <param name="idRemapping">A dictionary representing the mapping between initial ids and their corresponding id in the cloned object.</param>
/// <param name="basePath">If not null, this method will apply the remapping only for paths that are contained in the given base path.</param>
public static void RemapIdentifiablePaths <T>(YamlAssetMetadata <T> metadata, Dictionary <Guid, Guid> idRemapping, YamlAssetPath basePath = null)
{
// Early exit if nothing to remap
if (metadata == null || idRemapping == null)
{
return;
}
var replacements = new List <Tuple <YamlAssetPath, YamlAssetPath, T> >();
foreach (var entry in metadata)
{
// Skip paths that doesn't start with the given base path.
if (basePath != null && !entry.Key.StartsWith(basePath))
{
continue;
}
var newPath = new YamlAssetPath(entry.Key.Elements.Select(x => FixupIdentifier(x, idRemapping)));
replacements.Add(Tuple.Create(entry.Key, newPath, entry.Value));
}
// First remove everything, then re-add everything, in case we have a collision between an old path and a new path
foreach (var replacement in replacements)
{
metadata.Remove(replacement.Item1);
}
foreach (var replacement in replacements)
{
metadata.Set(replacement.Item2, replacement.Item3);
}
}
/// <summary>
/// Fix up references represented by the <paramref name="objectReferences"/> dictionary into the <paramref name="root"/> object, by visiting the object
/// to find all <see cref="IIdentifiable"/> instances it references, and modify the references described by <paramref name="objectReferences"/> to point
/// to the proper identifiable object matching the same <see cref="Guid"/>.
/// </summary>
/// <param name="root">The root object to fix up.</param>
/// <param name="objectReferences">The path to each object reference and the <see cref="Guid"/> of the tar</param>
/// <param name="clearBrokenObjectReferences">If true, any object refernce that cannot be resolved will be reset to null.</param>
/// <param name="throwOnDuplicateIds">If true, an exception will be thrown if two <see cref="IIdentifiable"/></param>
/// <param name="logger">An optional logger.</param>
public static void RunFixupPass(object root, YamlAssetMetadata <Guid> objectReferences, bool clearBrokenObjectReferences, bool throwOnDuplicateIds, [CanBeNull] ILogger logger = null)
{
// First collect IIdentifiable objects
var referenceTargets = CollectReferenceableObjects(root, objectReferences, throwOnDuplicateIds, logger);
// Then resolve and update object references
FixupReferences(root, objectReferences, referenceTargets, clearBrokenObjectReferences, logger);
}
public void Run(Asset asset, List <ItemToReload> itemsToReload)
{
Reset();
ItemsToReload = itemsToReload;
root = asset;
ObjectReferences = new YamlAssetMetadata <Guid>();
Visit(asset);
ItemsToReload = null;
}
public override object ReadDictionaryKey(ref ObjectContext objectContext, Type keyType)
{
var key = objectContext.Reader.Peek <Scalar>();
OverrideType[] overrideTypes;
var keyName = TrimAndParseOverride(key.Value, out overrideTypes);
key.Value = keyName;
var keyValue = base.ReadDictionaryKey(ref objectContext, keyType);
if (overrideTypes[0] != OverrideType.Base)
{
YamlAssetMetadata <OverrideType> overrides;
if (!objectContext.SerializerContext.Properties.TryGetValue(OverrideDictionaryKey, out overrides))
{
overrides = new YamlAssetMetadata <OverrideType>();
objectContext.SerializerContext.Properties.Add(OverrideDictionaryKey, overrides);
}
var path = GetCurrentPath(ref objectContext, true);
ItemId id;
object actualKey;
if (YamlAssetPath.IsCollectionWithIdType(objectContext.Descriptor.Type, keyValue, out id, out actualKey))
{
path.PushItemId(id);
}
else
{
path.PushIndex(key);
}
overrides.Set(path, overrideTypes[0]);
}
if (overrideTypes.Length > 1 && overrideTypes[1] != OverrideType.Base)
{
ItemId id;
object actualKey;
if (YamlAssetPath.IsCollectionWithIdType(objectContext.Descriptor.Type, keyValue, out id, out actualKey))
{
YamlAssetMetadata <OverrideType> overrides;
if (!objectContext.SerializerContext.Properties.TryGetValue(OverrideDictionaryKey, out overrides))
{
overrides = new YamlAssetMetadata <OverrideType>();
objectContext.SerializerContext.Properties.Add(OverrideDictionaryKey, overrides);
}
var path = GetCurrentPath(ref objectContext, true);
path.PushIndex(actualKey);
overrides.Set(path, overrideTypes[1]);
}
}
return(keyValue);
}
public static void SerializeAndCompare(object instance, YamlAssetMetadata <OverrideType> overrides, string expectedYaml)
{
var stream = new MemoryStream();
var metadata = new AttachedYamlAssetMetadata();
metadata.AttachMetadata(AssetObjectSerializerBackend.OverrideDictionaryKey, overrides);
AssetFileSerializer.Default.Save(stream, instance, metadata, null);
stream.Position = 0;
var streamReader = new StreamReader(stream);
var yaml = streamReader.ReadToEnd();
Assert.Equal(expectedYaml, yaml);
}
private static string SerializeAsString(object instance, YamlAssetMetadata <Guid> objectReferences)
{
using (var stream = new MemoryStream())
{
var metadata = new AttachedYamlAssetMetadata();
if (objectReferences != null)
{
metadata.AttachMetadata(AssetObjectSerializerBackend.ObjectReferencesKey, objectReferences);
}
new YamlAssetSerializer().Save(stream, instance, metadata);
stream.Flush();
stream.Position = 0;
return(new StreamReader(stream).ReadToEnd());
}
}
public void TestAbstracteferenceObjectAbstractSerialization()
{
var obj = new Container {
Referenceable3 = new Referenceable {
Id = GuidGenerator.Get(1), Value = "Test"
}
};
obj.Referenceable4 = (Referenceable)obj.Referenceable3;
var objectReferences = new YamlAssetMetadata <Guid>();
var path = new YamlAssetPath();
path.PushMember(nameof(Container.Referenceable4));
objectReferences.Set(path, obj.Referenceable4.Id);
var yaml = SerializeAsString(obj, objectReferences);
Assert.AreEqual(AbstractReferenceAbstractObjectYaml, yaml);
}
public void TestConcreteReferenceConcreteObjectSerialization()
{
var obj = new Container {
Referenceable1 = new Referenceable {
Id = GuidGenerator.Get(1), Value = "Test"
}
};
obj.Referenceable2 = obj.Referenceable1;
var objectReferences = new YamlAssetMetadata <Guid>();
var path = new YamlAssetPath();
path.PushMember(nameof(Container.Referenceable2));
objectReferences.Set(path, obj.Referenceable2.Id);
var yaml = SerializeAsString(obj, objectReferences);
Assert.AreEqual(ConcreteReferenceConcreteObjectYaml, yaml);
}
public void TestAbstractNonIdentifiableReferenceableDictionarySerialization()
{
var obj = new NonIdentifiableCollectionContainer();
var item = new Referenceable {
Id = GuidGenerator.Get(1), Value = "Test"
};
obj.AbstractRefDictionary.Add("Item1", item);
obj.AbstractRefDictionary.Add("Item2", item);
var objectReferences = new YamlAssetMetadata <Guid>();
var path = new YamlAssetPath();
path.PushMember(nameof(CollectionContainer.AbstractRefDictionary));
path.PushIndex("Item1");
objectReferences.Set(path, GuidGenerator.Get(1));
var yaml = SerializeAsString(obj, objectReferences);
Assert.AreEqual(AbstractNonIdentifiableReferenceableDictionaryYaml, yaml);
}
public void TestConcreteNonIdentifiableReferenceableListSerialization()
{
var obj = new NonIdentifiableCollectionContainer();
var item = new Referenceable {
Id = GuidGenerator.Get(1), Value = "Test"
};
obj.ConcreteRefList.Add(item);
obj.ConcreteRefList.Add(item);
var objectReferences = new YamlAssetMetadata <Guid>();
var path = new YamlAssetPath();
path.PushMember(nameof(CollectionContainer.ConcreteRefList));
path.PushIndex(0);
objectReferences.Set(path, GuidGenerator.Get(1));
var yaml = SerializeAsString(obj, objectReferences);
Assert.AreEqual(ConcreteNonIdentifiableReferenceableListYaml, yaml);
}
private static YamlAssetMetadata <T> RemoveFirstIndexInYamlPath <T>([CanBeNull] YamlAssetMetadata <T> metadata, NodeIndex index)
{
if (metadata != null)
{
// If we had an index we need to remove it from our override paths
if (index != NodeIndex.Empty)
{
var fixedMetadata = new YamlAssetMetadata <T>();
foreach (var entry in metadata)
{
// We're filling a new dictionary because we are destroying hash codes by muting the keys
var newPath = entry.Key.Elements.Count > 0 ? new YamlAssetPath(entry.Key.Elements.Skip(1)) : entry.Key;
fixedMetadata.Set(newPath, entry.Value);
}
metadata = fixedMetadata;
}
}
return(metadata);
}
private static void PostAssemblyReloading(IUndoRedoService actionService, SessionNodeContainer nodeContainer, ReloadingVisitor reloaderVisitor, ILogger log, Dictionary <AssetViewModel, List <ItemToReload> > assetItemsToReload)
{
log?.Info("Updating components with newly loaded assemblies");
// Recreate new objects from Yaml streams
foreach (var asset in assetItemsToReload)
{
// Deserialize objects with reloaded types from Yaml
reloaderVisitor.Run(asset.Key.Asset, asset.Value);
// Set new values
var overrides = new YamlAssetMetadata <OverrideType>();
foreach (var itemToReload in asset.Value)
{
// Set (members) or add nodes (collections) with values created using newly loaded assemblies
ReplaceNode(actionService, asset.Key, itemToReload);
if (itemToReload.Overrides != null)
{
var extendedPath = itemToReload.GraphPath.Clone();
if (itemToReload.GraphPathIndex != NodeIndex.Empty)
{
extendedPath.PushIndex(itemToReload.GraphPathIndex);
}
var pathToPrepend = AssetNodeMetadataCollectorBase.ConvertPath(extendedPath);
foreach (var entry in itemToReload.Overrides)
{
var path = pathToPrepend.Append(entry.Key);
overrides.Set(path, entry.Value);
}
}
}
FixupObjectReferences.RunFixupPass(asset.Key.Asset, reloaderVisitor.ObjectReferences, true, false, log);
var rootNode = (IAssetNode)nodeContainer.GetNode(asset.Key.Asset);
AssetPropertyGraph.ApplyOverrides(rootNode, overrides);
}
}
public static void FixupReferences([NotNull] object root, [NotNull] YamlAssetMetadata <Guid> objectReferences, [NotNull] Dictionary <Guid, IIdentifiable> referenceTargets, bool clearMissingReferences, [NotNull] Action <MemberPath, object, object> applyAction, ILogger logger = null)
{
foreach (var objectReference in objectReferences)
{
var path = objectReference.Key.ToMemberPath(root);
if (!referenceTargets.TryGetValue(objectReference.Value, out IIdentifiable target))
{
logger?.Warning($"Unable to resolve target object [{objectReference.Value}] of reference [{objectReference.Key}]");
if (clearMissingReferences)
{
applyAction(path, root, null);
}
}
else
{
var current = path.GetValue(root);
if (!Equals(current, target))
{
applyAction(path, root, target);
}
}
}
}
public void TestConcreteReferenceableDictionarySerialization()
{
var obj = new CollectionContainer();
var item = new Referenceable {
Id = GuidGenerator.Get(1), Value = "Test"
};
obj.ConcreteRefDictionary.Add("Item1", item);
obj.ConcreteRefDictionary.Add("Item2", item);
var objectReferences = new YamlAssetMetadata <Guid>();
var ids = CollectionItemIdHelper.GetCollectionItemIds(obj.ConcreteRefDictionary);
ids["Item1"] = IdentifierGenerator.Get(1);
ids["Item2"] = IdentifierGenerator.Get(2);
var path = new YamlAssetPath();
path.PushMember(nameof(CollectionContainer.ConcreteRefDictionary));
path.PushItemId(IdentifierGenerator.Get(1));
objectReferences.Set(path, GuidGenerator.Get(1));
var yaml = SerializeAsString(obj, objectReferences);
Assert.AreEqual(ConcreteReferenceableDictionaryYaml, yaml);
}
public void TestAbstractReferenceableListSerialization()
{
var obj = new CollectionContainer();
var item = new Referenceable {
Id = GuidGenerator.Get(1), Value = "Test"
};
obj.AbstractRefList.Add(item);
obj.AbstractRefList.Add(item);
var objectReferences = new YamlAssetMetadata <Guid>();
var ids = CollectionItemIdHelper.GetCollectionItemIds(obj.AbstractRefList);
ids[0] = IdentifierGenerator.Get(1);
ids[1] = IdentifierGenerator.Get(2);
var path = new YamlAssetPath();
path.PushMember(nameof(CollectionContainer.AbstractRefList));
path.PushItemId(IdentifierGenerator.Get(1));
objectReferences.Set(path, GuidGenerator.Get(1));
var yaml = SerializeAsString(obj, objectReferences);
Assert.AreEqual(AbstractReferenceableListYaml, yaml);
}
public static void FixupReferences([NotNull] object root, [NotNull] YamlAssetMetadata <Guid> objectReferences, [NotNull] Dictionary <Guid, IIdentifiable> referenceTargets, bool clearMissingReferences, ILogger logger = null)
{
FixupReferences(root, objectReferences, referenceTargets, clearMissingReferences, (p, r, v) => p.Apply(r, MemberPathAction.ValueSet, v));
}
public static Dictionary <Guid, IIdentifiable> CollectReferenceableObjects(object root, YamlAssetMetadata <Guid> objectReferences, bool throwOnDuplicateIds, [CanBeNull] ILogger logger = null)
{
var hashSet = new HashSet <MemberPath>(objectReferences.Select(x => x.Key.ToMemberPath(root)));
var visitor = new FixupObjectReferenceVisitor(hashSet, throwOnDuplicateIds, logger);
visitor.Visit(root);
return(visitor.ReferenceableObjects);
}
/// <inheritdoc />
public override bool ProcessDeserializedData(AssetPropertyGraphContainer graphContainer, object targetRootObject, Type targetMemberType, ref object data, bool isRootDataObjectReference, AssetId?sourceId, YamlAssetMetadata <OverrideType> overrides, YamlAssetPath basePath)
{
if (targetRootObject == null)
{
throw new ArgumentNullException(nameof(targetRootObject));
}
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
var asset = (Asset)targetRootObject;
var targetPropertyGraph = graphContainer.TryGetGraph(asset.Id);
// We use a container object in case the data itself is an object reference
var container = isRootDataObjectReference ? new FixupContainer {
Data = data
} : data;
var rootNode = targetPropertyGraph.Container.NodeContainer.GetOrCreateNode(container);
var externalReferences = ExternalReferenceCollector.GetExternalReferences(targetPropertyGraph.Definition, rootNode);
try
{
// Clone to create new ids for any IIdentifiable, except passed external references that will be maintained
Dictionary <Guid, Guid> idRemapping;
data = AssetCloner.Clone <object>(data, AssetClonerFlags.GenerateNewIdsForIdentifiableObjects, externalReferences, out idRemapping);
}
// TODO: have a proper exception type for serialization failure
catch (Exception)
{
// Note: this can fail if the type doesn't have a binary serializer.
return(false);
}
var targetTypeDescriptor = TypeDescriptorFactory.Default.Find(targetMemberType);
bool result;
switch (targetTypeDescriptor.Category)
{
case DescriptorCategory.Collection:
result = ConvertForCollection((CollectionDescriptor)targetTypeDescriptor, ref data);
break;
case DescriptorCategory.Dictionary:
result = ConvertForDictionary((DictionaryDescriptor)targetTypeDescriptor, ref data);
break;
case DescriptorCategory.Primitive:
case DescriptorCategory.Object:
case DescriptorCategory.NotSupportedObject:
case DescriptorCategory.Nullable:
result = ConvertForProperty(targetTypeDescriptor.Type, ref data);
break;
case DescriptorCategory.Array:
case DescriptorCategory.Custom:
throw new NotSupportedException();
default:
throw new ArgumentOutOfRangeException();
}
if (!result)
{
return(false);
}
// Collect all referenceable objects from the target asset (where we're pasting)
var referenceableObjects = IdentifiableObjectCollector.Collect(targetPropertyGraph.Definition, targetPropertyGraph.RootNode);
// We use a container object in case the data itself is an object reference
container = isRootDataObjectReference ? new FixupContainer {
Data = data
} : data;
rootNode = targetPropertyGraph.Container.NodeContainer.GetOrCreateNode(container);
// Generate YAML paths for the external reference so we can go through the normal deserialization fixup method.
var externalReferenceIds = new HashSet <Guid>(externalReferences.Select(x => x.Id));
var visitor = new ObjectReferencePathGenerator(targetPropertyGraph.Definition)
{
ShouldOutputReference = x => externalReferenceIds.Contains(x)
};
visitor.Visit(rootNode);
// Fixup external references
FixupObjectReferences.FixupReferences(container, visitor.Result, referenceableObjects, true);
data = (container as FixupContainer)?.Data ?? data;
return(true);
}
/// <inheritdoc /> public abstract bool ProcessDeserializedData(AssetPropertyGraphContainer graphContainer, object targetRootObject, Type targetMemberType, ref object data, bool isRootDataObjectReference, AssetId?sourceId, YamlAssetMetadata <OverrideType> overrides, YamlAssetPath basePath);
/// <inheritdoc />
public override bool ProcessDeserializedData(AssetPropertyGraphContainer graphContainer, object targetRootObject, Type targetMemberType, ref object data, bool isRootDataObjectReference, AssetId?sourceId, YamlAssetMetadata <OverrideType> overrides, YamlAssetPath basePath)
{
if (targetRootObject == null)
{
throw new ArgumentNullException(nameof(targetRootObject));
}
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
var collectionDescriptor = (CollectionDescriptor)TypeDescriptorFactory.Default.Find(targetRootObject.GetType());
var collection = data as IList <AssetItem>;
if (collection == null)
{
collection = (IList <AssetItem>)Activator.CreateInstance(collectionDescriptor.Type, true);
collectionDescriptor.Add(collection, data);
}
for (var i = 0; i < collection.Count; i++)
{
var assetItem = collection[i];
// If the asset already exists, clone it with new identifiers
if (session.GetAssetById(assetItem.Id) != null)
{
// Create a derived asset and restore archetype to handle asset-specific cloning process.
Dictionary <Guid, Guid> idRemapping;
var clone = AssetCloner.Clone(assetItem.Asset, AssetClonerFlags.GenerateNewIdsForIdentifiableObjects, out idRemapping);
var assetType = assetItem.Asset.GetType();
if (assetType.HasInterface(typeof(AssetCompositeHierarchy <,>)))
{
try
{
// TODO: Find a way to fallback to the asset or generalize for all asset composite
dynamic assetComposite = clone;
// Remap indices of parts in Hierarchy.Part
var path = basePath.Clone();
path.PushItemId(CollectionItemIdHelper.GetCollectionItemIds(collection)[i]);
AssetCloningHelper.RemapIdentifiablePaths(overrides, idRemapping, path);
AssetPartsAnalysis.GenerateNewBaseInstanceIds(assetComposite.Hierarchy);
}
catch (RuntimeBinderException e)
{
e.Ignore();
}
}
// FIXME: rework this
var postProcessor = session.ServiceProvider.Get <ICopyPasteService>().PostProcessors.FirstOrDefault(p => p.Accept(assetType));
postProcessor?.PostPasteDeserialization(clone);
collection[i] = new AssetItem(assetItem.Location, clone);
}
}
// Get the fixed-up value
data = collection;
return(true);
}
/// <inheritdoc />
public override bool ProcessDeserializedData(AssetPropertyGraphContainer graphContainer, object targetRootObject, Type targetMemberType, ref object data, bool isRootDataObjectReference, AssetId?sourceId, YamlAssetMetadata <OverrideType> overrides, YamlAssetPath basePath)
{
var asset = (AssetCompositeHierarchy <TAssetPartDesign, TAssetPart>)targetRootObject;
var hierarchy = data as AssetCompositeHierarchyData <TAssetPartDesign, TAssetPart>;
if (hierarchy == null)
{
return(false);
}
// Create a temporary asset to host the hierarchy to paste, so we have a property graph to manipulate it.
var tempAsset = (AssetCompositeHierarchy <TAssetPartDesign, TAssetPart>)Activator.CreateInstance(asset.GetType());
tempAsset.Hierarchy = hierarchy;
// Use temporary containers so that any created nodes are discarded after the processing.
var tempNodeContainer = new AssetNodeContainer {
NodeBuilder = { NodeFactory = new AssetNodeFactory() }
};
var definition = AssetQuantumRegistry.GetDefinition(asset.GetType());
var rootNode = tempNodeContainer.GetOrCreateNode(tempAsset);
// If different asset or if at least one part already exists, create a custom clone.
if (asset.Id != sourceId || hierarchy.Parts.Values.Any(part => asset.ContainsPart(part.Part.Id)))
{
// Clone again to create new ids for any IIdentifiable, but keep references to external object intact.
var cloneExternalReferences = ExternalReferenceCollector.GetExternalReferences(definition, rootNode);
hierarchy = AssetCloner.Clone(hierarchy, AssetClonerFlags.GenerateNewIdsForIdentifiableObjects, cloneExternalReferences, out var idRemapping);
// Remap indices of parts in Hierarchy.Part
AssetCloningHelper.RemapIdentifiablePaths(overrides, idRemapping, basePath);
// Make new base instances ids in case the part are inherited.
AssetPartsAnalysis.GenerateNewBaseInstanceIds(hierarchy);
// Update the temporary asset with this cloned hierarchy.
rootNode[nameof(AssetCompositeHierarchy <TAssetPartDesign, TAssetPart> .Hierarchy)].Update(hierarchy);
}
// Collect all referenceable objects from the target asset (where we're pasting)
var targetPropertyGraph = graphContainer.TryGetGraph(asset.Id);
var referenceableObjects = IdentifiableObjectCollector.Collect(targetPropertyGraph.Definition, targetPropertyGraph.RootNode);
// Replace references in the hierarchy being pasted by the real objects from the target asset.
var externalReferences = new HashSet <Guid>(ExternalReferenceCollector.GetExternalReferences(definition, rootNode).Select(x => x.Id));
var visitor = new ObjectReferencePathGenerator(definition)
{
ShouldOutputReference = x => externalReferences.Contains(x)
};
visitor.Visit(rootNode);
FixupObjectReferences.FixupReferences(tempAsset, visitor.Result, referenceableObjects, true);
data = hierarchy;
return(true);
}