Squashed 'third_party/protobuf/' content from commit e35e248
Change-Id: I6cbe123d09fe50fdcad0e51466665daeee7433c7
git-subtree-dir: third_party/protobuf
git-subtree-split: e35e24800fb8d694bdeea5fd63dc7d1b14d68723
diff --git a/src/google/protobuf/map_field_lite.h b/src/google/protobuf/map_field_lite.h
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+// 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 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::CreateMessage<Map<Key, T> >(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__