ArchiveObjectCrc32.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Containers/Array.h"
#include "Containers/Queue.h"
#include "Containers/UnrealString.h"
#include "CoreMinimal.h"
#include "HAL/Platform.h"
#include "Serialization/ArchiveUObject.h"
#include "Serialization/MemoryWriter.h"
 
class FArchive;
class UObject;
 
/*----------------------------------------------------------------------------
FArchiveObjectCrc32
----------------------------------------------------------------------------*/
 
class FArchiveObjectCrc32 : public FArchiveUObject
{
public:
    COREUOBJECT_API FArchiveObjectCrc32();
    COREUOBJECT_API ~FArchiveObjectCrc32();
 
    //~ Begin FArchive Interface
    COREUOBJECT_API virtual void Serialize(void* Data, int64 Length);
    COREUOBJECT_API virtual FArchive& operator<<(class FName& Name);
    COREUOBJECT_API virtual FArchive& operator<<(class UObject*& Object);
    COREUOBJECT_API virtual FArchive& operator<<(FObjectPtr& ObjectPtr) override;
    virtual FString GetArchiveName() const { return TEXT("FArchiveObjectCrc32"); }
    //~ End FArchive Interface
 
    COREUOBJECT_API uint32 Crc32(UObject* Object, uint32 CRC = 0);
    COREUOBJECT_API uint32 Crc32(UObject* Object, UObject* Root, uint32 CRC);
 
protected:
    virtual bool CustomSerialize(class UObject* Object) { return false; }
 
    TArray<uint8> SerializedObjectData;
    FMemoryWriter MemoryWriter;
    TQueue<UObject*> ObjectsToSerialize;
    const UObject* ObjectBeingSerialized;
    const UObject* RootObject;
};