| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // https://developers.google.com/protocol-buffers/ |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #ifndef GOOGLE_PROTOBUF_MAP_FIELD_LITE_H__ |
| #define GOOGLE_PROTOBUF_MAP_FIELD_LITE_H__ |
| |
| #include <google/protobuf/map.h> |
| #include <google/protobuf/map_entry_lite.h> |
| |
| namespace google { |
| namespace protobuf { |
| namespace internal { |
| |
| // This class provides accesss to map field using generated api. It is used for |
| // internal generated message implentation only. Users should never use this |
| // directly. |
| template <typename Key, typename T, |
| WireFormatLite::FieldType key_wire_type, |
| WireFormatLite::FieldType value_wire_type, |
| int default_enum_value = 0> |
| class LIBPROTOBUF_EXPORT MapFieldLite { |
| // Define message type for internal repeated field. |
| typedef MapEntryLite<Key, T, key_wire_type, value_wire_type, |
| default_enum_value> EntryType; |
| |
| public: |
| MapFieldLite(); |
| explicit MapFieldLite(Arena* arena); |
| virtual ~MapFieldLite(); |
| |
| // Accessors |
| virtual const Map<Key, T>& GetMap() const; |
| virtual Map<Key, T>* MutableMap(); |
| |
| // Convenient methods for generated message implementation. |
| virtual int size() const; |
| virtual void Clear(); |
| virtual void MergeFrom(const MapFieldLite& other); |
| virtual void Swap(MapFieldLite* other); |
| |
| // Set default enum value only for proto2 map field whose value is enum type. |
| void SetDefaultEnumValue(); |
| |
| // Used in the implementation of parsing. Caller should take the ownership. |
| EntryType* NewEntry() const; |
| // Used in the implementation of serializing enum value type. Caller should |
| // take the ownership. |
| EntryType* NewEnumEntryWrapper(const Key& key, const T t) const; |
| // Used in the implementation of serializing other value types. Caller should |
| // take the ownership. |
| EntryType* NewEntryWrapper(const Key& key, const T& t) const; |
| |
| protected: |
| // Convenient methods to get internal google::protobuf::Map |
| virtual const Map<Key, T>& GetInternalMap() const; |
| virtual Map<Key, T>* MutableInternalMap(); |
| |
| private: |
| typedef void DestructorSkippable_; |
| |
| Arena* arena_; |
| Map<Key, T>* map_; |
| |
| friend class ::google::protobuf::Arena; |
| }; |
| |
| template <typename Key, typename T, |
| WireFormatLite::FieldType key_wire_type, |
| WireFormatLite::FieldType value_wire_type, |
| int default_enum_value> |
| MapFieldLite<Key, T, key_wire_type, value_wire_type, |
| default_enum_value>::MapFieldLite() |
| : arena_(NULL) { |
| map_ = new Map<Key, T>; |
| SetDefaultEnumValue(); |
| } |
| |
| template <typename Key, typename T, |
| WireFormatLite::FieldType key_wire_type, |
| WireFormatLite::FieldType value_wire_type, |
| int default_enum_value> |
| MapFieldLite<Key, T, key_wire_type, value_wire_type, |
| default_enum_value>::MapFieldLite(Arena* arena) |
| : arena_(arena) { |
| map_ = Arena::Create<Map<Key, T> >(arena, arena); |
| SetDefaultEnumValue(); |
| } |
| |
| template <typename Key, typename T, |
| WireFormatLite::FieldType key_wire_type, |
| WireFormatLite::FieldType value_wire_type, |
| int default_enum_value> |
| MapFieldLite<Key, T, key_wire_type, value_wire_type, |
| default_enum_value>::~MapFieldLite() { |
| delete map_; |
| } |
| |
| template <typename Key, typename T, |
| WireFormatLite::FieldType key_wire_type, |
| WireFormatLite::FieldType value_wire_type, |
| int default_enum_value> |
| const Map<Key, T>& |
| MapFieldLite<Key, T, key_wire_type, value_wire_type, |
| default_enum_value>::GetMap() const { |
| return *map_; |
| } |
| |
| template <typename Key, typename T, |
| WireFormatLite::FieldType key_wire_type, |
| WireFormatLite::FieldType value_wire_type, |
| int default_enum_value> |
| Map<Key, T>* |
| MapFieldLite<Key, T, key_wire_type, value_wire_type, |
| default_enum_value>::MutableMap() { |
| return map_; |
| } |
| |
| template <typename Key, typename T, |
| WireFormatLite::FieldType key_wire_type, |
| WireFormatLite::FieldType value_wire_type, |
| int default_enum_value> |
| int |
| MapFieldLite<Key, T, key_wire_type, value_wire_type, |
| default_enum_value>::size() const { |
| return map_->size(); |
| } |
| |
| template <typename Key, typename T, |
| WireFormatLite::FieldType key_wire_type, |
| WireFormatLite::FieldType value_wire_type, |
| int default_enum_value> |
| void |
| MapFieldLite<Key, T, key_wire_type, value_wire_type, |
| default_enum_value>::Clear() { |
| map_->clear(); |
| } |
| |
| template <typename Key, typename T, |
| WireFormatLite::FieldType key_wire_type, |
| WireFormatLite::FieldType value_wire_type, |
| int default_enum_value> |
| void |
| MapFieldLite<Key, T, key_wire_type, value_wire_type, |
| default_enum_value>::MergeFrom( |
| const MapFieldLite& other) { |
| for (typename Map<Key, T>::const_iterator it = other.map_->begin(); |
| it != other.map_->end(); ++it) { |
| (*map_)[it->first] = it->second; |
| } |
| } |
| |
| template <typename Key, typename T, |
| WireFormatLite::FieldType key_wire_type, |
| WireFormatLite::FieldType value_wire_type, |
| int default_enum_value> |
| void |
| MapFieldLite<Key, T, key_wire_type, value_wire_type, |
| default_enum_value>::Swap( |
| MapFieldLite* other) { |
| std::swap(map_, other->map_); |
| } |
| |
| template <typename Key, typename T, |
| WireFormatLite::FieldType key_wire_type, |
| WireFormatLite::FieldType value_wire_type, |
| int default_enum_value> |
| void |
| MapFieldLite<Key, T, key_wire_type, value_wire_type, |
| default_enum_value>::SetDefaultEnumValue() { |
| MutableInternalMap()->SetDefaultEnumValue(default_enum_value); |
| } |
| |
| template <typename Key, typename T, |
| WireFormatLite::FieldType key_wire_type, |
| WireFormatLite::FieldType value_wire_type, |
| int default_enum_value> |
| const Map<Key, T>& |
| MapFieldLite<Key, T, key_wire_type, value_wire_type, |
| default_enum_value>::GetInternalMap() const { |
| return *map_; |
| } |
| |
| template <typename Key, typename T, |
| WireFormatLite::FieldType key_wire_type, |
| WireFormatLite::FieldType value_wire_type, |
| int default_enum_value> |
| Map<Key, T>* |
| MapFieldLite<Key, T, key_wire_type, value_wire_type, |
| default_enum_value>::MutableInternalMap() { |
| return map_; |
| } |
| |
| #define EntryType \ |
| MapEntryLite<Key, T, key_wire_type, value_wire_type, default_enum_value> |
| |
| template <typename Key, typename T, |
| WireFormatLite::FieldType key_wire_type, |
| WireFormatLite::FieldType value_wire_type, |
| int default_enum_value> |
| EntryType* |
| MapFieldLite<Key, T, key_wire_type, value_wire_type, |
| default_enum_value>::NewEntry() const { |
| if (arena_ == NULL) { |
| return new EntryType(); |
| } else { |
| return Arena::CreateMessage<EntryType>(arena_); |
| } |
| } |
| |
| template <typename Key, typename T, |
| WireFormatLite::FieldType key_wire_type, |
| WireFormatLite::FieldType value_wire_type, |
| int default_enum_value> |
| EntryType* |
| MapFieldLite<Key, T, key_wire_type, value_wire_type, |
| default_enum_value>::NewEnumEntryWrapper(const Key& key, |
| const T t) const { |
| return EntryType::EnumWrap(key, t, arena_); |
| } |
| |
| template <typename Key, typename T, |
| WireFormatLite::FieldType key_wire_type, |
| WireFormatLite::FieldType value_wire_type, |
| int default_enum_value> |
| EntryType* |
| MapFieldLite<Key, T, key_wire_type, value_wire_type, |
| default_enum_value>::NewEntryWrapper(const Key& key, |
| const T& t) const { |
| return EntryType::Wrap(key, t, arena_); |
| } |
| |
| #undef EntryType |
| |
| // True if IsInitialized() is true for value field in all elements of t. T is |
| // expected to be message. It's useful to have this helper here to keep the |
| // protobuf compiler from ever having to emit loops in IsInitialized() methods. |
| // We want the C++ compiler to inline this or not as it sees fit. |
| template <typename Key, typename T> |
| bool AllAreInitialized(const Map<Key, T>& t) { |
| for (typename Map<Key, T>::const_iterator it = t.begin(); it != t.end(); |
| ++it) { |
| if (!it->second.IsInitialized()) return false; |
| } |
| return true; |
| } |
| |
| } // namespace internal |
| } // namespace protobuf |
| |
| } // namespace google |
| #endif // GOOGLE_PROTOBUF_MAP_FIELD_LITE_H__ |