ObjectSaveOverride.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Containers/Array.h"
#include "UObject/FieldPath.h"
#include "UObject/ObjectMacros.h"
 
struct FPropertySaveOverride
{
    void Merge(const FPropertySaveOverride& Other)
    {
        checkf(PropertyPath == Other.PropertyPath, TEXT("Merge called with an unrelated FPropertySaveOverride!"));
        bMarkTransient |= Other.bMarkTransient;
    }
 
    FFieldPath PropertyPath;
    bool bMarkTransient;
};
 
struct FObjectSaveOverride
{
    void Merge(const FObjectSaveOverride& Other)
    {
        bForceTransient |= Other.bForceTransient;
 
        if (PropOverrides.IsEmpty())
        {
            PropOverrides = Other.PropOverrides;
        }
        else if (!Other.PropOverrides.IsEmpty())
        {
            for (const FPropertySaveOverride& OtherPropOverride : Other.PropOverrides)
            {
                if (FPropertySaveOverride* MatchingPropOverride = PropOverrides.FindByPredicate([&OtherPropOverride](const FPropertySaveOverride& PropOverride) { return PropOverride.PropertyPath == OtherPropOverride.PropertyPath; }))
                {
                    MatchingPropOverride->Merge(OtherPropOverride);
                }
                else
                {
                    PropOverrides.Add(OtherPropOverride);
                }
            }
        }
    }
 
    TArray<FPropertySaveOverride> PropOverrides;
 
    // Treats the object as RF_Transient for the duration of the save
    bool bForceTransient = false;
};