| // 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. |
| |
| // 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/io/zero_copy_stream_impl.h" |
| #include "google/protobuf/arena.h" |
| #include "google/protobuf/generated_message_util.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: |
| PROTOBUF_ATTRIBUTE_REINITIALIZES void Clear() final; |
| bool IsInitialized() const final { return true; } |
| size_t ByteSizeLong() const final; |
| int GetCachedSize() const final { return _cached_size_.Get(); } |
| const char* _InternalParse(const char* ptr, |
| internal::ParseContext* ctx) final; |
| ::uint8_t* _InternalSerialize(::uint8_t* target, |
| io::EpsCopyOutputStream* stream) const final; |
| |
| protected: |
| constexpr ZeroFieldsBase() {} |
| explicit ZeroFieldsBase(Arena* arena, bool is_message_owned) |
| : Message(arena, is_message_owned) {} |
| ZeroFieldsBase(const ZeroFieldsBase&) = delete; |
| ZeroFieldsBase& operator=(const ZeroFieldsBase&) = delete; |
| ~ZeroFieldsBase() override; |
| |
| void SetCachedSize(int size) const final { _cached_size_.Set(size); } |
| |
| static void MergeImpl(Message& to, const Message& from); |
| static void CopyImpl(Message& to, const Message& from); |
| void InternalSwap(ZeroFieldsBase* other); |
| |
| mutable internal::CachedSize _cached_size_; |
| }; |
| |
| } // namespace internal |
| } // namespace protobuf |
| } // namespace google |
| |
| #include "google/protobuf/port_undef.inc" |
| |
| #endif // GOOGLE_PROTOBUF_GENERATED_MESSAGE_BASES_H__ |