void UUserDefinedStructEditorData::RecreateDefaultInstance(FString* OutLog)
{
UStruct* ScriptStruct = GetOwnerStruct();
DefaultStructInstance.Recreate(ScriptStruct);
uint8* StructData = DefaultStructInstance.GetStructMemory();
ensure(DefaultStructInstance.IsValid() && DefaultStructInstance.GetStruct() == ScriptStruct);
if (DefaultStructInstance.IsValid() && StructData && ScriptStruct)
{
DefaultStructInstance.SetPackage(ScriptStruct->GetOutermost());
for (TFieldIterator<UProperty> It(ScriptStruct); It; ++It)
{
UProperty* Property = *It;
if (Property)
{
auto VarDesc = VariablesDescriptions.FindByPredicate(FStructureEditorUtils::FFindByNameHelper<FStructVariableDescription>(Property->GetFName()));
if (VarDesc && !VarDesc->CurrentDefaultValue.IsEmpty())
{
if (!FBlueprintEditorUtils::PropertyValueFromString(Property, VarDesc->CurrentDefaultValue, StructData))
{
const FString Message = FString::Printf(TEXT("Cannot parse value. Property: %s String: \"%s\" ")
, (Property ? *Property->GetDisplayNameText().ToString() : TEXT("None"))
, *VarDesc->CurrentDefaultValue);
UE_LOG(LogClass, Warning, TEXT("UUserDefinedStructEditorData::RecreateDefaultInstance %s Struct: %s "), *Message, *GetPathNameSafe(ScriptStruct));
if (OutLog)
{
OutLog->Append(Message);
}
}
}
}
}
}
}
void UClassProperty::Serialize( FArchive& Ar )
{
Super::Serialize( Ar );
Ar << MetaClass;
#if USE_CIRCULAR_DEPENDENCY_LOAD_DEFERRING
if (Ar.IsLoading() || Ar.IsObjectReferenceCollector())
{
if (ULinkerPlaceholderClass* PlaceholderClass = Cast<ULinkerPlaceholderClass>(MetaClass))
{
PlaceholderClass->AddReferencingProperty(this);
}
}
#endif // USE_CIRCULAR_DEPENDENCY_LOAD_DEFERRING
if( !(MetaClass||HasAnyFlags(RF_ClassDefaultObject)) )
{
// If we failed to load the MetaClass and we're not a CDO, that means we relied on a class that has been removed or doesn't exist.
// The most likely cause for this is either an incomplete recompile, or if content was migrated between games that had native class dependencies
// that do not exist in this game. We allow blueprint classes to continue, because compile on load will error out, and stub the class that was using it
UClass* TestClass = dynamic_cast<UClass*>(GetOwnerStruct());
if( TestClass && TestClass->HasAllClassFlags(CLASS_Native) && !TestClass->HasAllClassFlags(CLASS_NewerVersionExists) && (TestClass->GetOutermost() != GetTransientPackage()) )
{
checkf(false, TEXT("Class property tried to serialize a missing class. Did you remove a native class and not fully recompile?"));
}
}
}
void UUserDefinedStructEditorData::PostLoadSubobjects(FObjectInstancingGraph* OuterInstanceGraph)
{
Super::PostLoadSubobjects(OuterInstanceGraph);
for (auto& VarDesc : VariablesDescriptions)
{
VarDesc.bInvalidMember = !FStructureEditorUtils::CanHaveAMemberVariableOfType(GetOwnerStruct(), VarDesc.ToPinType());
}
}
UUserDefinedStructEditorData::UUserDefinedStructEditorData(const FObjectInitializer& ObjectInitializer)
: Super(ObjectInitializer)
{
UUserDefinedStruct* ScriptStruct = GetOwnerStruct();
if (ScriptStruct)
{
DefaultStructInstance.SetPackage(ScriptStruct->GetOutermost());
}
}
void UUserDefinedStructEditorData::PostEditUndo(TSharedPtr<ITransactionObjectAnnotation> TransactionAnnotation)
{
Super::PostEditUndo();
FStructureEditorUtils::EStructureEditorChangeInfo ActiveChange = FStructureEditorUtils::Unknown;
if (TransactionAnnotation.IsValid())
{
TSharedPtr<FStructureTransactionAnnotation> StructAnnotation = StaticCastSharedPtr<FStructureTransactionAnnotation>(TransactionAnnotation);
if (StructAnnotation.IsValid())
{
ActiveChange = StructAnnotation->GetActiveChange();
}
}
FStructureEditorUtils::OnStructureChanged(GetOwnerStruct(), ActiveChange);
}
void UUserDefinedStructEditorData::PostEditUndo()
{
Super::PostEditUndo();
FStructureEditorUtils::OnStructureChanged(GetOwnerStruct());
}
void UUserDefinedStructEditorData::CleanDefaultInstance()
{
ensure(!DefaultStructInstance.IsValid() || DefaultStructInstance.GetStruct() == GetOwnerStruct());
DefaultStructInstance.Destroy();
}
const uint8* UUserDefinedStructEditorData::GetDefaultInstance() const
{
ensure(DefaultStructInstance.IsValid() && DefaultStructInstance.GetStruct() == GetOwnerStruct());
return DefaultStructInstance.GetStructMemory();
}