PropertyPath.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Containers/Array.h"
#include "Containers/ArrayView.h"
#include "Containers/ContainerAllocationPolicies.h"
#include "CoreMinimal.h"
#include "HAL/PlatformCrt.h"
#include "Misc/TVariant.h"
#include "Templates/UnrealTemplate.h"
#include "UObject/FieldPath.h"
#include "UObject/Object.h"
#include "UObject/StructOnScope.h"
#include "UObject/UnrealType.h"
#include "UObject/WeakObjectPtr.h"
#include "UObject/WeakObjectPtrTemplates.h"
 
class FProperty;
class UObject;
class UScriptStruct;
 
namespace UE::PropertyViewer
{
 
struct FPropertyPath
{
public:
    using FPropertyArray = TArray<const FProperty*, TInlineAllocator<1>>;
 
    FPropertyPath() = default;
    ADVANCEDWIDGETS_API FPropertyPath(UObject* Object, const FProperty* Property);
    ADVANCEDWIDGETS_API FPropertyPath(UObject* Object, FPropertyArray Properties);
    ADVANCEDWIDGETS_API FPropertyPath(const UScriptStruct* ScriptStruct, void* Data, const FProperty* Property);
    ADVANCEDWIDGETS_API FPropertyPath(const UScriptStruct* ScriptStruct, void* Data, FPropertyArray Properties);
 
public:
    bool HasProperty() const
    {
        return Properties.Num() != 0;
    }
 
    const FProperty* GetLastProperty() const
    {
        return HasProperty() ? Properties.Last() : nullptr;
    }
 
    TArrayView<const FProperty* const> GetProperties() const
    {
        return MakeArrayView(Properties);
    }
 
    ADVANCEDWIDGETS_API void* GetContainerPtr();
    ADVANCEDWIDGETS_API const void* GetContainerPtr() const;
 
private:
    TWeakObjectPtr<UObject> TopLevelContainer_Object = nullptr;
    TWeakObjectPtr<const UScriptStruct> TopLevelContainer_ScriptStruct = nullptr;
    void* TopLevelContainer_ScriptStructData = nullptr;
 
    FPropertyArray Properties;
};
 
} //namespace