static SerializedContainerMetadata GetSerializedContainerMetadata(UnsafeObjectView view)
{
var metadata = default(SerializedContainerMetadata);
foreach (var member in view)
{
var name = member.Key().AsStringView();
if (name.Length() == 0 || name[0] != '$')
{
break;
}
if (name.Equals(k_SerializedId))
{
metadata.HasSerializedId = true;
metadata.SerializedId = member.Value().AsInt32();
}
if (name.Equals(k_SerializedReferenceKey))
{
metadata.IsSerializedReference = true;
metadata.SerializedId = member.Value().AsInt32();
}
metadata.HasSerializedTypeInfo |= name.Equals(k_SerializedTypeKey);
metadata.HasSerializedVersion |= name.Equals(k_SerializedVersionKey);
metadata.HasElements |= name.Equals(k_SerializedElementsKey);
}
return(metadata);
}
public bool TryMigrate <TValue>(UnsafeObjectView view, out TValue value, JsonPropertyReader reader, List <DeserializationEvent> events)
{
var migration = GetMigrationForType <TValue>(out var version);
if (null == migration)
{
value = default;
return(false);
}
var serializedVersion = 0;
if (view.TryGetValue(JsonPropertyVisitor.k_SerializedVersionKey, out var serializedVersionView))
{
if (serializedVersionView.Type != TokenType.Primitive)
{
events.Add(new DeserializationEvent(EventType.Exception, new Exception($"An error occured while deserializing Type=[{typeof(TValue)}]. Property=[{JsonPropertyVisitor.k_SerializedVersionKey}] is expected to be an int value.")));
value = default;
return(false);
}
serializedVersion = serializedVersionView.AsInt32();
if (version == serializedVersion)
{
value = default;
return(false);
}
}
var context = new JsonMigrationContext(serializedVersion, view.AsSafe(), typeof(TValue), UserData, reader);
switch (migration)
{
case IJsonMigration <TValue> typed:
value = typed.Migrate(context);
break;
case Contravariant.IJsonMigration <TValue> typedContravariant:
value = (TValue)typedContravariant.Migrate(context);
break;
default:
throw new Exception("An internal error has occured.");
}
return(true);
}
protected virtual void AcceptProperty <TContainer>(ref TContainer container, UnsafeObjectView view, IProperty <TContainer> property)
{
if (view.TryGetValue(property.Name, out var value))
{
using (CreatePropertyScope(property))
using (CreateViewScope(value))
{
((IPropertyAccept <TContainer>)property).Accept(this, ref container);
}
if (container is IFormatVersion formatVersion)
{
formatVersion.CheckFormatVersion();
}
return;
}
foreach (var attribute in property.GetAttributes <FormerNameAttribute>())
{
if (view.TryGetValue(attribute.OldName, out value))
{
using (CreatePropertyScope(property))
using (CreateViewScope(value))
{
((IPropertyAccept <TContainer>)property).Accept(this, ref container);
}
return;
}
}
foreach (var attribute in property.GetAttributes <UnityEngine.Serialization.FormerlySerializedAsAttribute>())
{
if (view.TryGetValue(attribute.oldName, out value))
{
using (CreatePropertyScope(property))
using (CreateViewScope(value))
{
((IPropertyAccept <TContainer>)property).Accept(this, ref container);
}
return;
}
}
}
static SerializedContainerMetadata GetSerializedContainerMetadata(UnsafeObjectView view)
{
var metadata = default(SerializedContainerMetadata);
foreach (var member in view)
{
var name = member.Key().AsStringView();
if (name.Length() == 0 || name[0] != '$')
{
break;
}
metadata.HasElements |= name.Equals(k_SerializedElementsKey);
}
return(metadata);
}
void AcceptProperty <TContainer>(ref TContainer container, UnsafeObjectView view, IProperty <TContainer> property)
{
if (view.TryGetValue(property.Name, out var value))
{
using (CreatePropertyScope(property))
using (CreateViewScope(value))
{
property.Accept(this, ref container);
}
return;
}
foreach (var attribute in property.GetAttributes <FormerNameAttribute>())
{
if (view.TryGetValue(attribute.OldName, out value))
{
using (CreatePropertyScope(property))
using (CreateViewScope(value))
{
property.Accept(this, ref container);
}
return;
}
}
foreach (var attribute in property.GetAttributes <UnityEngine.Serialization.FormerlySerializedAsAttribute>())
{
if (view.TryGetValue(attribute.oldName, out value))
{
using (CreatePropertyScope(property))
using (CreateViewScope(value))
{
property.Accept(this, ref container);
}
return;
}
}
}
protected override void AcceptProperty <TContainer>(ref TContainer container, UnsafeObjectView view, IProperty <TContainer> property)
{
var name = property.Name;
if (view.TryGetValue(name, out var value))
{
using (CreateViewScope(value))
{
if (container is GameObjectContainer gameObjectContainer)
{
gameObjectContainer.Parent = m_Parent;
m_GameObjectContainer = gameObjectContainer;
// TODO: Detect by type?
if (name == GameObjectContainer.PrefabMetadataProperty)
{
((IPropertyAccept <TContainer>)property).Accept(this, ref container);
return;
}
if (name == GameObjectContainer.ComponentsProperty)
{
var gameObject = gameObjectContainer.GameObject;
((IPropertyAccept <TContainer>)property).Accept(
new ComponentVisitor(gameObject, m_View, m_Events, m_SerializationMetadata),
ref container);
var prefabMetadata = gameObjectContainer.PrefabMetadataContainer;
if (prefabMetadata != null)
{
gameObjectContainer.FinalizePrefab(prefabMetadata, m_SerializationMetadata);
m_PrefabRoot = null;
}
return;
}
if (name == GameObjectContainer.ChildrenProperty)
{
((IPropertyAccept <TContainer>)property).Accept(
new GameObjectVisitor(m_View, m_Events, m_SerializationMetadata,
gameObjectContainer.GameObject.transform, m_PrefabRoot, m_Parameters),
ref container);
return;
}
}
else if (container is RuntimeAddedComponent addedComponent)
{
if (name == RuntimeAddedComponent.ComponentFieldName)
{
var target = m_PrefabRoot.GameObject.transform.GetTransformAtPath(addedComponent.TransformPath);
((IPropertyAccept <TContainer>)property).Accept(
new ComponentVisitor(target.gameObject, m_View, m_Events, m_SerializationMetadata),
ref container);
return;
}
}
else if (container is RuntimeAddedGameObject addedGameObject)
{
if (name == nameof(addedGameObject.GameObject))
{
var parent = m_PrefabRoot.GameObject.transform.GetTransformAtPath(addedGameObject.TransformPath);
((IPropertyAccept <TContainer>)property).Accept(
new GameObjectVisitor(m_View, m_Events, m_SerializationMetadata, parent, m_PrefabRoot, m_Parameters),
ref container);
return;
}
}
else if (container is PrefabMetadataContainer prefabMetadataContainer)
{
if (name == PrefabMetadataContainer.GuidFieldName)
{
m_PrefabRoot = m_GameObjectContainer;
((IPropertyAccept <TContainer>)property).Accept(this, ref container);
m_PrefabRoot.InstantiatePrefab(prefabMetadataContainer.Guid, m_SerializationMetadata.AssetPack);
return;
}
}
((IPropertyAccept <TContainer>)property).Accept(this, ref container);
}
}
}
protected override void AcceptProperty <TContainer>(ref TContainer container, UnsafeObjectView view, IProperty <TContainer> property)
{
var name = property.Name;
if (view.TryGetValue(name, out var value))
{
using (CreateViewScope(value))
{
if (property is Property <TContainer, List <GameObjectContainer> > )
{
((IPropertyAccept <TContainer>)property).Accept(
new GameObjectVisitor(m_View, m_Events, m_SerializationMetadata, m_SceneRoot, null, m_Parameters),
ref container);
}
else
{
((IPropertyAccept <TContainer>)property).Accept(this, ref container);
}
}
}
}
