64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
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// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "Templates/Casts.h"
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#include "UObject/Package.h"
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#include "Serialization/ArchiveReplaceObjectRef.h"
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/*----------------------------------------------------------------------------
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FArchiveReplaceOrClearExternalReferences.
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----------------------------------------------------------------------------*/
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/**
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* Identical to FArchiveReplaceObjectRef, but for references to private objects
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* in other packages we clear the reference instead of preserving it (unless it
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* makes it into the replacement map)
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*/
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template <class T>
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class FArchiveReplaceOrClearExternalReferences: public FArchiveReplaceObjectRef<T>
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{
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typedef FArchiveReplaceObjectRef<T> TSuper;
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public:
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FArchiveReplaceOrClearExternalReferences(UObject* InSearchObject, const TMap<T*, T*>& InReplacementMap, UPackage* InDestPackage, bool bDelayStart = false)
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: TSuper(InSearchObject, InReplacementMap, false, false, false, true), DestPackage(InDestPackage)
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{
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if (!bDelayStart)
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{
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this->SerializeSearchObject();
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}
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}
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FArchive& operator<<(UObject*& Obj)
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{
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UObject* Resolved = Obj;
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TSuper::operator<<(Resolved);
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// if Resolved is a private object in another package just clear the reference:
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if (Resolved)
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{
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UObject* Outermost = Resolved->GetOutermost();
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if (Outermost)
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{
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UPackage* ObjPackage = dynamic_cast<UPackage*>(Outermost);
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if (ObjPackage)
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{
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CA_SUPPRESS(6011);
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if (ObjPackage != Obj &&
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DestPackage != ObjPackage &&
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!Obj->HasAnyFlags(RF_Public))
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{
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Resolved = nullptr;
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}
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}
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}
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}
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Obj = Resolved;
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return *this;
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}
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protected:
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/** Package that we are loading into, references to private objects in other packages will be cleared */
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UPackage* DestPackage;
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};
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