JsonStructDeserializerBackend.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 "IStructDeserializerBackend.h"
#include "Serialization/JsonReader.h"
#include "Serialization/JsonTypes.h"
#include "Templates/SharedPointer.h"
 
class FArchive;
class FProperty;
 
class FJsonStructDeserializerBackend
    : public IStructDeserializerBackend
{
public:
 
    FJsonStructDeserializerBackend( FArchive& Archive )
        : JsonReader(TJsonReader<WIDECHAR>::Create(&Archive))
    { }
 
public:
 
    // IStructDeserializerBackend interface
 
    SERIALIZATION_API virtual const FString& GetCurrentPropertyName() const override;
    SERIALIZATION_API virtual FString GetDebugString() const override;
    SERIALIZATION_API virtual const FString& GetLastErrorMessage() const override;
    SERIALIZATION_API virtual bool GetNextToken( EStructDeserializerBackendTokens& OutToken ) override;
    SERIALIZATION_API virtual bool ReadProperty( FProperty* Property, FProperty* Outer, void* Data, int32 ArrayIndex ) override;
    SERIALIZATION_API virtual void SkipArray() override;
    SERIALIZATION_API virtual void SkipStructure() override;
 
protected:
    FString& GetLastIdentifier()
    {
        return LastIdentifier;
    }
 
    EJsonNotation GetLastNotation()
    {
        return LastNotation;
    }
 
    TSharedRef<TJsonReader<WIDECHAR>>& GetReader()
    {
        return JsonReader;
    }
 
private:
 
    FString LastIdentifier;
 
    EJsonNotation LastNotation;
 
    TSharedRef<TJsonReader<WIDECHAR>> JsonReader;
};