void FAssetFixUpRedirectors::DeleteRedirectors(TArray<FRedirectorRefs>& RedirectorsToFix) const
{
TArray<UObject*> ObjectsToDelete;
for ( auto RedirectorIt = RedirectorsToFix.CreateIterator(); RedirectorIt; ++RedirectorIt )
{
FRedirectorRefs& RedirectorRefs = *RedirectorIt;
if ( RedirectorRefs.bRedirectorValidForFixup )
{
// Add all redirectors found in this package to the redirectors to delete list.
// All redirectors in this package should be fixed up.
UPackage* RedirectorPackage = RedirectorRefs.Redirector->GetOutermost();
TArray<UObject*> AssetsInRedirectorPackage;
GetObjectsWithOuter(RedirectorPackage, AssetsInRedirectorPackage, /*bIncludeNestedObjects=*/false);
UMetaData* PackageMetaData = NULL;
bool bContainsAtLeastOneOtherAsset = false;
for ( auto ObjIt = AssetsInRedirectorPackage.CreateConstIterator(); ObjIt; ++ObjIt )
{
if ( UObjectRedirector* Redirector = Cast<UObjectRedirector>(*ObjIt) )
{
Redirector->RemoveFromRoot();
ObjectsToDelete.Add(Redirector);
}
else if ( UMetaData* MetaData = Cast<UMetaData>(*ObjIt) )
{
PackageMetaData = MetaData;
}
else
{
bContainsAtLeastOneOtherAsset = true;
}
}
if ( !bContainsAtLeastOneOtherAsset )
{
RedirectorPackage->RemoveFromRoot();
ULinkerLoad* Linker = ULinkerLoad::FindExistingLinkerForPackage(RedirectorPackage);
if ( Linker )
{
Linker->RemoveFromRoot();
}
// @todo we shouldnt be worrying about metadata objects here, ObjectTools::CleanUpAfterSuccessfulDelete should
if ( PackageMetaData )
{
PackageMetaData->RemoveFromRoot();
ObjectsToDelete.Add(PackageMetaData);
}
}
// This redirector will be deleted, NULL the reference here
RedirectorRefs.Redirector = NULL;
}
}
if ( ObjectsToDelete.Num() > 0 )
{
ObjectTools::DeleteObjects(ObjectsToDelete);
}
}
void FAssetDeleteModel::PrepareToDelete(UObject* InObject)
{
if ( InObject->IsA<UObjectRedirector>() )
{
// Add all redirectors found in this package to the redirectors to delete list.
// All redirectors in this package should be fixed up.
UPackage* RedirectorPackage = InObject->GetOutermost();
TArray<UObject*> AssetsInRedirectorPackage;
GetObjectsWithOuter(RedirectorPackage, AssetsInRedirectorPackage, /*bIncludeNestedObjects=*/false);
UMetaData* PackageMetaData = NULL;
bool bContainsAtLeastOneOtherAsset = false;
for ( auto ObjIt = AssetsInRedirectorPackage.CreateConstIterator(); ObjIt; ++ObjIt )
{
if ( UObjectRedirector* Redirector = Cast<UObjectRedirector>(*ObjIt) )
{
Redirector->RemoveFromRoot();
}
else if ( UMetaData* MetaData = Cast<UMetaData>(*ObjIt) )
{
PackageMetaData = MetaData;
}
else
{
bContainsAtLeastOneOtherAsset = true;
}
}
if ( !bContainsAtLeastOneOtherAsset )
{
RedirectorPackage->RemoveFromRoot();
ULinkerLoad* Linker = ULinkerLoad::FindExistingLinkerForPackage(RedirectorPackage);
if ( Linker )
{
Linker->RemoveFromRoot();
}
// @todo we shouldnt be worrying about metadata objects here, ObjectTools::CleanUpAfterSuccessfulDelete should
if ( PackageMetaData )
{
PackageMetaData->RemoveFromRoot();
PendingDeletes.AddUnique(MakeShareable(new FPendingDelete(PackageMetaData)));
}
}
}
}
//------------------------------------------------------------------------------
void FBlueprintNativeCodeGenUtils::GenerateCppCode(UObject* Obj, TSharedPtr<FString> OutHeaderSource, TSharedPtr<FString> OutCppSource)
{
auto UDEnum = Cast<UUserDefinedEnum>(Obj);
auto UDStruct = Cast<UUserDefinedStruct>(Obj);
auto BPGC = Cast<UClass>(Obj);
auto InBlueprintObj = BPGC ? Cast<UBlueprint>(BPGC->ClassGeneratedBy) : Cast<UBlueprint>(Obj);
OutHeaderSource->Empty();
OutCppSource->Empty();
if (InBlueprintObj)
{
if (EBlueprintStatus::BS_Error == InBlueprintObj->Status)
{
UE_LOG(LogBlueprintCodeGen, Error, TEXT("Cannot convert \"%s\". It has errors."), *InBlueprintObj->GetPathName());
return;
}
check(InBlueprintObj->GetOutermost() != GetTransientPackage());
if (!ensureMsgf(InBlueprintObj->GeneratedClass, TEXT("Invalid generated class for %s"), *InBlueprintObj->GetName()))
{
return;
}
check(OutHeaderSource.IsValid());
check(OutCppSource.IsValid());
FDisableGatheringDataOnScope DisableFib;
const FString TempPackageName = FString::Printf(TEXT("/Temp/__TEMP_BP__/%s"), *InBlueprintObj->GetName());
UPackage* TempPackage = CreatePackage(nullptr, *TempPackageName);
check(TempPackage);
ON_SCOPE_EXIT
{
TempPackage->RemoveFromRoot();
TempPackage->MarkPendingKill();
};
UBlueprint* DuplicateBP = nullptr;
{
FBlueprintDuplicationScopeFlags BPDuplicationFlags(
FBlueprintDuplicationScopeFlags::NoExtraCompilation | FBlueprintDuplicationScopeFlags::TheSameTimelineGuid);
DuplicateBP = DuplicateObject<UBlueprint>(InBlueprintObj, TempPackage, *InBlueprintObj->GetName());
}
ensure((nullptr != DuplicateBP->GeneratedClass) && (InBlueprintObj->GeneratedClass != DuplicateBP->GeneratedClass));
ON_SCOPE_EXIT
{
DuplicateBP->RemoveFromRoot();
DuplicateBP->MarkPendingKill();
};
IBlueprintCompilerCppBackendModule& CodeGenBackend = (IBlueprintCompilerCppBackendModule&)IBlueprintCompilerCppBackendModule::Get();
CodeGenBackend.GetOriginalClassMap().Add(*DuplicateBP->GeneratedClass, *InBlueprintObj->GeneratedClass);
{
TSharedPtr<FBlueprintCompileReinstancer> Reinstancer = FBlueprintCompileReinstancer::Create(DuplicateBP->GeneratedClass);
IKismetCompilerInterface& Compiler = FModuleManager::LoadModuleChecked<IKismetCompilerInterface>(KISMET_COMPILER_MODULENAME);
TGuardValue<bool> GuardTemplateNameFlag(GCompilingBlueprint, true);
FCompilerResultsLog Results;
FKismetCompilerOptions CompileOptions;
CompileOptions.CompileType = EKismetCompileType::Cpp;
CompileOptions.OutCppSourceCode = OutCppSource;
CompileOptions.OutHeaderSourceCode = OutHeaderSource;
Compiler.CompileBlueprint(DuplicateBP, CompileOptions, Results);
Compiler.RemoveBlueprintGeneratedClasses(DuplicateBP);
}
if (EBlueprintType::BPTYPE_Interface == DuplicateBP->BlueprintType && OutCppSource.IsValid())
{
OutCppSource->Empty(); // ugly temp hack
}
}
else if ((UDEnum || UDStruct) && OutHeaderSource.IsValid())
void FAssetFixUpRedirectors::DeleteRedirectors(TArray<FRedirectorRefs>& RedirectorsToFix, const TArray<UPackage*>& FailedToSave) const
{
TArray<UObject*> ObjectsToDelete;
for ( auto RedirectorIt = RedirectorsToFix.CreateIterator(); RedirectorIt; ++RedirectorIt )
{
FRedirectorRefs& RedirectorRefs = *RedirectorIt;
if ( RedirectorRefs.bRedirectorValidForFixup )
{
bool bAllReferencersFixedUp = true;
for (const auto& ReferencingPackageName : RedirectorRefs.ReferencingPackageNames)
{
if (FailedToSave.ContainsByPredicate([&](UPackage* Package) { return Package->GetFName() == ReferencingPackageName; }))
{
bAllReferencersFixedUp = false;
break;
}
}
if (!bAllReferencersFixedUp)
{
continue;
}
// Add all redirectors found in this package to the redirectors to delete list.
// All redirectors in this package should be fixed up.
UPackage* RedirectorPackage = RedirectorRefs.Redirector->GetOutermost();
TArray<UObject*> AssetsInRedirectorPackage;
GetObjectsWithOuter(RedirectorPackage, AssetsInRedirectorPackage, /*bIncludeNestedObjects=*/false);
UMetaData* PackageMetaData = NULL;
bool bContainsAtLeastOneOtherAsset = false;
for ( auto ObjIt = AssetsInRedirectorPackage.CreateConstIterator(); ObjIt; ++ObjIt )
{
if ( UObjectRedirector* Redirector = Cast<UObjectRedirector>(*ObjIt) )
{
Redirector->RemoveFromRoot();
ObjectsToDelete.Add(Redirector);
}
else if ( UMetaData* MetaData = Cast<UMetaData>(*ObjIt) )
{
PackageMetaData = MetaData;
}
else
{
bContainsAtLeastOneOtherAsset = true;
}
}
if ( !bContainsAtLeastOneOtherAsset )
{
RedirectorPackage->RemoveFromRoot();
// @todo we shouldnt be worrying about metadata objects here, ObjectTools::CleanUpAfterSuccessfulDelete should
if ( PackageMetaData )
{
PackageMetaData->RemoveFromRoot();
ObjectsToDelete.Add(PackageMetaData);
}
}
// This redirector will be deleted, NULL the reference here
RedirectorRefs.Redirector = NULL;
}
}
if ( ObjectsToDelete.Num() > 0 )
{
ObjectTools::DeleteObjects(ObjectsToDelete, false);
}
}
