field-info.cpp

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
#include "field-info.hpp"

#include <boost/mpl/for_each.hpp>
#include <boost/bind.hpp>

namespace ndn {
namespace lp {
namespace detail {

struct ExtractFieldInfo
{
  typedef void result_type;

  template<typename T>
  void
  operator()(FieldInfo* info, T)
  {
    if (T::TlvType::value != info->tlvType) {
      return;
    }
    info->isRecognized = true;
    info->canIgnore = false;
    info->isRepeatable = T::IsRepeatable::value;
    info->locationSortOrder = getLocationSortOrder<typename T::FieldLocation>();
  }
};

FieldInfo::FieldInfo()
  : tlvType(0)
  , isRecognized(false)
  , canIgnore(false)
  , isRepeatable(false)
  , locationSortOrder(getLocationSortOrder<field_location_tags::Header>())
{
}

FieldInfo::FieldInfo(uint64_t tlv)
  : tlvType(tlv)
  , isRecognized(false)
  , canIgnore(false)
  , isRepeatable(false)
  , locationSortOrder(getLocationSortOrder<field_location_tags::Header>())
{
  boost::mpl::for_each<FieldSet>(boost::bind(ExtractFieldInfo(), this, _1));
  if (!isRecognized) {
    canIgnore = tlv::HEADER3_MIN <= tlvType && tlvType <= tlv::HEADER3_MAX &&
                (tlvType & 0x01) == 0x01;
  }
}

} // namespace detail
} // namespace lp
} // namespace ndn