Program Listing for File union-data-manager.h

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#pragma once

#include <stdlib.h>

namespace gpa {
namespace serialization {

class Union;

class UnionDataManager
{
public:
    UnionDataManager();

    UnionDataManager(Union const* unionDef);

    UnionDataManager(void const* base, Union const* unionDef);

    UnionDataManager(void const* base, size_t count, Union const* unionDef);

    UnionDataManager(UnionDataManager const& other);

    UnionDataManager(UnionDataManager&& other);

    ~UnionDataManager();

    UnionDataManager& operator=(UnionDataManager const& other);

    UnionDataManager& operator=(UnionDataManager&& other);

    operator bool() const;

    void* MutableBase() const;

    size_t MutableBaseSize() const;

    void const* UnmodifiedBase() const;

    Union const* UnionDef() const;

private:
    void const* mOriginalData{};
    void* mMutableData{};
    size_t mMutableDataSize{};
    size_t mCount{};
    Union const* mUnionDef{};

    void MakeDeepCopy();
    void DeleteMutableData();
    void Clear();
};

}  // namespace serialization
}  // namespace gpa