Program Listing for File struct-data-manager.h

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and your use of them is governed by the express license under which they
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#pragma once

#include <stdlib.h>

namespace gpa {
namespace serialization {

class Struct;
class Union;

struct StructDataObserver
{
    virtual void OnBeginStruct(Struct const*) {}
    virtual void OnEndStruct() {}

    virtual void OnBeginField(class StructDataEditor const&, class Field const*, size_t) {}
    virtual void OnEndField(class Field const*) {}
};

class StructDataManager
{
public:
    StructDataManager();

    StructDataManager(Struct const* structDef);

    StructDataManager(void const* base, Struct const* structDef);

    StructDataManager(void const* base, size_t count, Struct const* structDef);

    StructDataManager(Union const* unionDef);

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

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

    StructDataManager(StructDataManager const& other);

    StructDataManager(StructDataManager&& other) noexcept;

    ~StructDataManager();

    StructDataManager& operator=(StructDataManager const& other);

    StructDataManager& operator=(StructDataManager&& other) noexcept;

    bool operator==(StructDataManager const& other) const;

    operator bool() const;

    void* MutableBase() const;

    size_t MutableBaseSize() const;

    void const* UnmodifiedBase() const;

    Struct const* StructDef() const;

    Union const* UnionDef() const;

    void Observe(StructDataObserver& observer) const;

private:
    void const* mOriginalData;
    void* mMutableData;
    size_t mMutableDataSize;
    size_t mCount;
    Struct const* mStructDef;
    Union const* mUnionDef;

    template<typename TypeDef>
    void MakeDeepCopy(TypeDef const* typeDef);
    void DeleteMutableData();
    void Swap(StructDataManager& other);
};

}  // namespace serialization
}  // namespace gpa