| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file or at |
| // https://developers.google.com/open-source/licenses/bsd |
| |
| // This file contains helpers for generated code. |
| // |
| // Nothing in this file should be directly referenced by users of protobufs. |
| |
| #ifndef GOOGLE_PROTOBUF_GENERATED_MESSAGE_BASES_H__ |
| #define GOOGLE_PROTOBUF_GENERATED_MESSAGE_BASES_H__ |
| |
| #include "google/protobuf/arena.h" |
| #include "google/protobuf/generated_message_util.h" |
| #include "google/protobuf/io/zero_copy_stream_impl.h" |
| #include "google/protobuf/message.h" |
| #include "google/protobuf/parse_context.h" |
| |
| // Must come last: |
| #include "google/protobuf/port_def.inc" |
| |
| namespace google { |
| namespace protobuf { |
| namespace internal { |
| |
| // To save code size, protos without any fields are derived from ZeroFieldsBase |
| // rather than Message. |
| class PROTOBUF_EXPORT ZeroFieldsBase : public Message { |
| public: |
| ABSL_ATTRIBUTE_REINITIALIZES void Clear() final; |
| size_t ByteSizeLong() const final; |
| int GetCachedSize() const { return _impl_._cached_size_.Get(); } |
| ::uint8_t* _InternalSerialize(::uint8_t* target, |
| io::EpsCopyOutputStream* stream) const final; |
| |
| protected: |
| constexpr ZeroFieldsBase() {} |
| explicit ZeroFieldsBase(Arena* arena) : Message(arena) {} |
| ZeroFieldsBase(const ZeroFieldsBase&) = delete; |
| ZeroFieldsBase& operator=(const ZeroFieldsBase&) = delete; |
| ~ZeroFieldsBase() override; |
| |
| static void MergeImpl(MessageLite& to, const MessageLite& from); |
| static void CopyImpl(Message& to, const Message& from); |
| void InternalSwap(ZeroFieldsBase* other); |
| |
| struct { |
| mutable internal::CachedSize _cached_size_; |
| } _impl_; |
| }; |
| |
| } // namespace internal |
| } // namespace protobuf |
| } // namespace google |
| |
| #include "google/protobuf/port_undef.inc" |
| |
| #endif // GOOGLE_PROTOBUF_GENERATED_MESSAGE_BASES_H__ |