dom/localstorage/SerializationHelpers.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   5  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_localstorage_SerializationHelpers_h
   8 #define mozilla_dom_localstorage_SerializationHelpers_h
   9
  10 #include <string>
  11 #include "chrome/common/ipc_message_utils.h"
  12 #include "ipc/EnumSerializer.h"
  13 #include "mozilla/dom/LSSnapshot.h"
  14 #include "mozilla/dom/LSValue.h"
  15
  16 namespace IPC {
  17
  18 template <>
  19 struct ParamTraits<mozilla::dom::LSSnapshot::LoadState>
  20     : public ContiguousEnumSerializer<
  21           mozilla::dom::LSSnapshot::LoadState,
  22           mozilla::dom::LSSnapshot::LoadState::Initial,
  23           mozilla::dom::LSSnapshot::LoadState::EndGuard> {};
  24
  25 template <>
  26 struct ParamTraits<mozilla::dom::LSValue::CompressionType>
  27     : public ContiguousEnumSerializer<
  28           mozilla::dom::LSValue::CompressionType,
  29           mozilla::dom::LSValue::CompressionType::UNCOMPRESSED,
  30           mozilla::dom::LSValue::CompressionType::NUM_TYPES> {};
  31
  32 static_assert(
  33     0u == static_cast<uint8_t>(mozilla::dom::LSValue::ConversionType::NONE));
  34 template <>
  35 struct ParamTraits<mozilla::dom::LSValue::ConversionType>
  36     : public ContiguousEnumSerializer<
  37           mozilla::dom::LSValue::ConversionType,
  38           mozilla::dom::LSValue::ConversionType::NONE,
  39           mozilla::dom::LSValue::ConversionType::NUM_TYPES> {};
  40
  41 template <>
  42 struct ParamTraits<mozilla::dom::LSValue> {
  43   typedef mozilla::dom::LSValue paramType;
  44
  45   static void Write(MessageWriter* aWriter, const paramType& aParam) {
  46     WriteParam(aWriter, aParam.mBuffer);
  47     WriteParam(aWriter, aParam.mUTF16Length);
  48     WriteParam(aWriter, aParam.mConversionType);
  49     WriteParam(aWriter, aParam.mCompressionType);
  50   }
  51
  52   static bool Read(MessageReader* aReader, paramType* aResult) {
  53     return ReadParam(aReader, &aResult->mBuffer) &&
  54            ReadParam(aReader, &aResult->mUTF16Length) &&
  55            ReadParam(aReader, &aResult->mConversionType) &&
  56            ReadParam(aReader, &aResult->mCompressionType);
  57   }
  58 };
  59
  60 }  // namespace IPC
  61
  62 #endif  // mozilla_dom_localstorage_SerializationHelpers_h