RscSkipper.hpp

 
//
//  Copyright Phoenix Contact GmbH & Co. KG
//
#pragma once
#include "Arp/Base/Core/Arp.hpp"
#include "Arp/Base/Rsc/Commons/RscVariant.hxx"
#include "Arp/Base/Rsc/Commons/RscArrayReader.hpp"
#include "Arp/Base/Rsc/Commons/RscStructReader.hpp"
namespace Arp::Base::Rsc::Commons::Services
{
 
class RscSkipper
{
public: // construction
    RscSkipper(void) = delete; 
 
public: // static operations
    template<int N>
    static void Skip(const RscVariant<N>& value);
 
private: // static methods
    template<int N>
    static void SkipArray(RscType elementType, RscArrayReader& arrayReader);
 
    template<int N>
    static void SkipStruct(RscStructReader& structReader);
};
 
// inline methods of class RscSkipper
 
template<int N>
inline void RscSkipper::Skip(const RscVariant<N>& value)
{
    if (value.GetType() == RscType::Array)
    {
        RscArrayReader arrayReader(value);
        SkipArray<N>(arrayReader.GetElementType(), arrayReader);
    }
    else if (value.GetType() == RscType::Struct)
    {
        RscStructReader structReader(value);
        SkipStruct<N>(structReader);
    }
}
 
template<int N>
inline void RscSkipper::SkipArray(RscType elementType, RscArrayReader& arrayReader)
{
    for (size_t i = 0; i < arrayReader.GetSize(); i++)
    {
        if (arrayReader.GetDimensions() > 1)
        {
            RscArrayReader nextArrayReader = arrayReader.ReadNextArray();
            SkipArray<N>(arrayReader.GetElementType(), nextArrayReader);
        }
        else if (elementType == RscType::Struct)
        {
            RscStructReader structReader = arrayReader.ReadNextStruct<N>();
            SkipStruct<N>(structReader);
        }
        else
        {
            RscVariant<N> temp;
            arrayReader.ReadNext(temp);
        }
    }
}
 
template<int N>
inline void RscSkipper::SkipStruct(RscStructReader& structReader)
{
    for (size_t i = 0; i < structReader.GetFieldCount(); i++)
    {
        RscVariant<N> temp;
        structReader.ReadNextField(temp);
        Skip(temp);
    }
}
 
} // end of namespace Arp::Base::Rsc::Commons::Services