Deserializer.h

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#pragma once

#include "swCommonLib/Common/TypesDefinitions.h"
#include "swCommonLib/Serialization/ISerializationContext.h"
#include "swCommonLib/Serialization/FilePosition.h"

#include <string>
#include <memory>

struct DeserializerImpl;

enum class ParsingMode
{
    ParseInsitu,        
    AllocStrings        
};

class IDeserializer
{
private:
    DeserializerImpl*                           impl;
    ISerializationContextPtr                    context;
protected:
public:
    IDeserializer       ();
    IDeserializer       ( ISerializationContextPtr serContext );
    ~IDeserializer      ();

    bool            LoadFromFile    ( const std::string& fileName, ParsingMode mode );
    bool            LoadFromString  ( const std::string& contentString );

    const char*     GetName         () const;

    bool            EnterObject     ( const std::string& name ) const;
    bool            EnterArray      ( const std::string& name ) const;
    bool            EnterObject     ( const char* name ) const;
    bool            EnterArray      ( const char* name ) const;
    void            Exit            () const;

    bool            FirstElement    () const;
    bool            NextElement     () const;
    bool            PrevElement     () const;
    bool            LastElement     () const;

    std::string     GetAttribute        ( const std::string& name, std::string& defaultValue ) const;
    const char*     GetAttribute        ( const std::string& name, const char* defaultValue ) const;
    uint32          GetAttribute        ( const std::string& name, uint32 defaultValue ) const;
    uint64          GetAttribute        ( const std::string& name, uint64 defaultValue ) const;
    int32           GetAttribute        ( const std::string& name, int32 defaultValue ) const;
    int64           GetAttribute        ( const std::string& name, int64 defaultValue ) const;
    bool            GetAttribute        ( const std::string& name, bool defaultValue ) const;
    double          GetAttribute        ( const std::string& name, double defaultValue ) const;

    std::string     GetAttribute        ( const char* name, std::string& defaultValue ) const;
    const char*     GetAttribute        ( const char* name, const char* defaultValue ) const;
    uint32          GetAttribute        ( const char* name, uint32 defaultValue ) const;
    uint64          GetAttribute        ( const char* name, uint64 defaultValue ) const;
    int32           GetAttribute        ( const char* name, int32 defaultValue ) const;
    int64           GetAttribute        ( const char* name, int64 defaultValue ) const;
    bool            GetAttribute        ( const char* name, bool defaultValue ) const;
    double          GetAttribute        ( const char* name, double defaultValue ) const;


    std::string         GetError            () const;
    sw::FilePosition    CurrentLineNumber   () const;

public:

    template< typename ContextType >
    inline ContextType*         GetContext  () const
    {
        assert( context != nullptr );
        
        // Sprawdzanie dynamicznego typu tylko, jeżeli włączone jest RTTI.
#ifdef _CPPRTTI
        assert( typeid( *context ) == typeid( ContextType ) );
#endif

        return static_cast< ContextType* >( context.get() );
    }

};