ArchiveCrc32.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Containers/UnrealString.h"
#include "CoreMinimal.h"
#include "HAL/Platform.h"
#include "Serialization/ArchiveUObject.h"
#include "Serialization/MemoryLayout.h"
#include "Templates/EnableIf.h"
#include "Templates/Models.h"
 
class FArchive;
class UObject;
struct CStaticStructProvider;
 
class FArchiveCrc32 : public FArchiveUObject
{
public:
    COREUOBJECT_API FArchiveCrc32(uint32 InCRC = 0, UObject* InRootObject = nullptr);
 
    uint32 GetCrc() const { return CRC; }
 
    //~ Begin FArchive Interface
    COREUOBJECT_API virtual void Serialize(void* Data, int64 Num) override;
    COREUOBJECT_API virtual FArchive& operator<<(class FName& Name);
    COREUOBJECT_API virtual FArchive& operator<<(class UObject*& Object);
    COREUOBJECT_API virtual void Reset() override;
    virtual FString GetArchiveName() const { return TEXT("FArchiveCrc32"); }
    //~ End FArchive Interface
 
    template <typename StructType UE_REQUIRES(TModels_V<CStaticStructProvider, StructType>)>
    inline friend FArchiveCrc32& operator<<(FArchiveCrc32& Ar, const StructType& Value)
    {
        StructType* MutableValue = const_cast<StructType*>(&Value);
        StructType::StaticStruct()->SerializeItem(Ar, MutableValue, nullptr);
        return Ar;
    }
 
    using FArchiveUObject::operator<<; // For visibility of the overloads we don't override
 
    
 
private:
    uint32 CRC;
    uint32 InitialCRC;
    UObject* RootObject;
};