map_entry_lite.h | Explore in Territory

// Protocol Buffers - Google's data interchange format
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#ifndef GOOGLE_PROTOBUF_MAP_ENTRY_LITE_H__
#define GOOGLE_PROTOBUF_MAP_ENTRY_LITE_H__

#include <assert.h>

#include <algorithm>
#include <string>
#include <utility>

#include <google/protobuf/stubs/casts.h>
#include <google/protobuf/io/coded_stream.h>
#include <google/protobuf/arena.h>
#include <google/protobuf/port.h>
#include <google/protobuf/arenastring.h>
#include <google/protobuf/generated_message_util.h>
#include <google/protobuf/map.h>
#include <google/protobuf/map_type_handler.h>
#include <google/protobuf/parse_context.h>
#include <google/protobuf/wire_format_lite.h>

// Must be included last.
#include <google/protobuf/port_def.inc>
#ifdef SWIG
#error "You cannot SWIG proto headers"
#endif

namespace google {
namespace protobuf {
namespace internal {
template <typename Derived, typename Key, typename Value,
          WireFormatLite::FieldType kKeyFieldType,
          WireFormatLite::FieldType kValueFieldType>
class MapEntry;
template <typename Derived, typename Key, typename Value,
          WireFormatLite::FieldType kKeyFieldType,
          WireFormatLite::FieldType kValueFieldType>
class MapFieldLite;
}  // namespace internal
}  // namespace protobuf
}  // namespace google

namespace google {
namespace protobuf {
namespace internal {

// MoveHelper::Move is used to set *dest.  It copies *src, or moves it (in
// the C++11 sense), or swaps it. *src is left in a sane state for
// subsequent destruction, but shouldn't be used for anything.
template <bool is_enum, bool is_message, bool is_stringlike, typename T>
struct MoveHelper { … };

MoveHelper<true, is_message, is_stringlike, T>;

MoveHelper<false, true, is_stringlike, T>;

MoveHelper<false, false, true, T>;

// MapEntryImpl is used to implement parsing and serialization of map entries.
// It uses Curious Recursive Template Pattern (CRTP) to provide the type of
// the eventual code to the template code.
template <typename Derived, typename Base, typename Key, typename Value,
          WireFormatLite::FieldType kKeyFieldType,
          WireFormatLite::FieldType kValueFieldType>
class MapEntryImpl : public Base { … };

template <typename T, typename Key, typename Value,
          WireFormatLite::FieldType kKeyFieldType,
          WireFormatLite::FieldType kValueFieldType>
class MapEntryLite : public MapEntryImpl<T, MessageLite, Key, Value,
                                         kKeyFieldType, kValueFieldType> { … };

// Helpers for deterministic serialization =============================

// Iterator base for MapSorterFlat and MapSorterPtr.
template <typename storage_type>
struct MapSorterIt { … };

// MapSorterFlat stores keys inline with pointers to map entries, so that
// keys can be compared without indirection. This type is used for maps with
// keys that are not strings.
template <typename MapT>
class MapSorterFlat { … };

// MapSorterPtr stores and sorts pointers to map entries. This type is used for
// maps with keys that are strings.
template <typename MapT>
class MapSorterPtr { … };

}  // namespace internal
}  // namespace protobuf
}  // namespace google

#include <google/protobuf/port_undef.inc>

#endif  // GOOGLE_PROTOBUF_MAP_ENTRY_LITE_H__
chromium/third_party/protobuf/src/google/protobuf/map_entry_lite.h
