88 lines
3.5 KiB
C++
88 lines
3.5 KiB
C++
// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc. All rights reserved.
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// https://developers.google.com/protocol-buffers/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// This file contains helpers for generated code.
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//
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// Nothing in this file should be directly referenced by users of protobufs.
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#ifndef GOOGLE_PROTOBUF_GENERATED_MESSAGE_BASES_H__
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#define GOOGLE_PROTOBUF_GENERATED_MESSAGE_BASES_H__
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#include <google/protobuf/parse_context.h>
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#include <google/protobuf/io/zero_copy_stream_impl.h>
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#include <google/protobuf/arena.h>
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#include <google/protobuf/generated_message_util.h>
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#include <google/protobuf/message.h>
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// Must come last:
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#include <google/protobuf/port_def.inc>
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namespace google {
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namespace protobuf {
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namespace internal {
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// To save code size, protos without any fields are derived from ZeroFieldsBase
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// rather than Message.
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class PROTOBUF_EXPORT ZeroFieldsBase : public Message {
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public:
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PROTOBUF_ATTRIBUTE_REINITIALIZES void Clear() final;
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bool IsInitialized() const final { return true; }
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size_t ByteSizeLong() const final;
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int GetCachedSize() const final { return _cached_size_.Get(); }
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const char* _InternalParse(const char* ptr,
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internal::ParseContext* ctx) final;
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::uint8_t* _InternalSerialize(::uint8_t* target,
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io::EpsCopyOutputStream* stream) const final;
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protected:
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constexpr ZeroFieldsBase() {}
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explicit ZeroFieldsBase(Arena* arena, bool is_message_owned)
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: Message(arena, is_message_owned) {}
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ZeroFieldsBase(const ZeroFieldsBase&) = delete;
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ZeroFieldsBase& operator=(const ZeroFieldsBase&) = delete;
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~ZeroFieldsBase() override;
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void SetCachedSize(int size) const final { _cached_size_.Set(size); }
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static void MergeImpl(Message* to, const Message& from);
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static void CopyImpl(Message* to, const Message& from);
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void InternalSwap(ZeroFieldsBase* other);
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mutable internal::CachedSize _cached_size_;
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};
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} // namespace internal
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} // namespace protobuf
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} // namespace google
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#include <google/protobuf/port_undef.inc>
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#endif // GOOGLE_PROTOBUF_GENERATED_MESSAGE_BASES_H__
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