Line data    Source code

       1             : // Protocol Buffers - Google's data interchange format
       2             : // Copyright 2008 Google Inc.  All rights reserved.
       3             : // https://developers.google.com/protocol-buffers/
       4             : //
       5             : // Redistribution and use in source and binary forms, with or without
       6             : // modification, are permitted provided that the following conditions are
       7             : // met:
       8             : //
       9             : //     * Redistributions of source code must retain the above copyright
      10             : // notice, this list of conditions and the following disclaimer.
      11             : //     * Redistributions in binary form must reproduce the above
      12             : // copyright notice, this list of conditions and the following disclaimer
      13             : // in the documentation and/or other materials provided with the
      14             : // distribution.
      15             : //     * Neither the name of Google Inc. nor the names of its
      16             : // contributors may be used to endorse or promote products derived from
      17             : // this software without specific prior written permission.
      18             : //
      19             : // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      20             : // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      21             : // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      22             : // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
      23             : // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      24             : // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
      25             : // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      26             : // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      27             : // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      28             : // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      29             : // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      30             : 
      31             : // This header file defines an internal class that encapsulates internal message
      32             : // metadata (Unknown-field set, Arena pointer, ...) and allows its
      33             : // representation to be made more space-efficient via various optimizations.
      34             : //
      35             : // Note that this is distinct from google::protobuf::Metadata, which encapsulates
      36             : // Descriptor and Reflection pointers.
      37             : 
      38             : #ifndef GOOGLE_PROTOBUF_METADATA_H__
      39             : #define GOOGLE_PROTOBUF_METADATA_H__
      40             : 
      41             : #include <google/protobuf/metadata_lite.h>
      42             : #include <google/protobuf/unknown_field_set.h>
      43             : 
      44             : namespace google {
      45             : namespace protobuf {
      46             : namespace internal {
      47             : 
      48             : class InternalMetadataWithArena
      49             :     : public InternalMetadataWithArenaBase<UnknownFieldSet,
      50             :                                            InternalMetadataWithArena> {
      51             :  public:
      52             :   InternalMetadataWithArena() {}
      53          42 :   explicit InternalMetadataWithArena(Arena* arena)
      54          42 :       : InternalMetadataWithArenaBase<UnknownFieldSet,
      55          42 :                                            InternalMetadataWithArena>(arena) {}
      56             : 
      57           0 :   void DoSwap(UnknownFieldSet* other) {
      58           0 :     mutable_unknown_fields()->Swap(other);
      59           0 :   }
      60             : 
      61           0 :   void DoMergeFrom(const UnknownFieldSet& other) {
      62           0 :     mutable_unknown_fields()->MergeFrom(other);
      63           0 :   }
      64             : 
      65           0 :   void DoClear() {
      66           0 :     mutable_unknown_fields()->Clear();
      67           0 :   }
      68             : 
      69           0 :   static const UnknownFieldSet& default_instance() {
      70           0 :     return *UnknownFieldSet::default_instance();
      71             :   }
      72             : };
      73             : 
      74             : }  // namespace internal
      75             : }  // namespace protobuf
      76             : 
      77             : }  // namespace google
      78             : #endif  // GOOGLE_PROTOBUF_METADATA_H__