Method Arena

common/memory.h:324–328

  }

  static Borrower Arena(google::protobuf::Arena* absl_nonnull arena
                            ABSL_ATTRIBUTE_LIFETIME_BOUND) noexcept {
    ABSL_DCHECK(arena != nullptr);
    return Borrower(reinterpret_cast<uintptr_t>(arena) | Owner::kArenaBit);
  }

  static Borrower Arena(std::nullptr_t) = delete;