src/third_party/protobuf/src/google/protobuf/arenastring.cc

// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
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// The ArenaString implementation is not included in the open-source release. Do
// not include this file in the distribution.

#include <google/protobuf/arenastring.h>

namespace google {
namespace protobuf {
namespace internal {


void ArenaStringPtr::AssignWithDefault(const ::std::string* default_value,
                                       ArenaStringPtr value) {
  const ::std::string* me = *UnsafeRawStringPointer();
  const ::std::string* other = *value.UnsafeRawStringPointer();
  // If the pointers are the same then do nothing.
  if (me != other) {
    SetNoArena(default_value, value.GetNoArena(default_value));
  }
}

::std::string* ArenaStringPtr::MutableNoArena(
     const ::std::string* default_value) {
  if (ptr_ == default_value) {
    CreateInstanceNoArena(default_value);
  }
  return ptr_;
}


void ArenaStringPtr::DestroyNoArena(const ::std::string* default_value) {
  if (ptr_ != default_value) {
    delete ptr_;
  }
  ptr_ = NULL;
}


}  // namespace internal
}  // namespace protobuf
}  // namespace google