dom/base/StructuredCloneTags.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
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef StructuredCloneTags_h__
   8 #define StructuredCloneTags_h__
   9
  10 #include "js/StructuredClone.h"
  11
  12 namespace mozilla {
  13 namespace dom {
  14
  15 // CHANGING THE ORDER/PLACEMENT OF EXISTING ENUM VALUES MAY BREAK INDEXEDDB.
  16 // PROCEED WITH EXTREME CAUTION.
  17 enum StructuredCloneTags {
  18   SCTAG_BASE = JS_SCTAG_USER_MIN,
  19
  20   SCTAG_DOM_BLOB,
  21
  22   // This tag is obsolete and exists only for backwards compatibility with
  23   // existing IndexedDB databases.
  24   SCTAG_DOM_FILE_WITHOUT_LASTMODIFIEDDATE,
  25
  26   SCTAG_DOM_FILELIST,
  27   SCTAG_DOM_MUTABLEFILE,
  28   SCTAG_DOM_FILE,
  29
  30   SCTAG_DOM_WASM,
  31
  32   // New IDB tags go here!
  33
  34   // These tags are used for both main thread and workers.
  35   SCTAG_DOM_IMAGEDATA,
  36   SCTAG_DOM_MAP_MESSAGEPORT,
  37
  38   SCTAG_DOM_FUNCTION,
  39
  40   // This tag is for WebCrypto keys
  41   SCTAG_DOM_WEBCRYPTO_KEY,
  42
  43   SCTAG_DOM_NULL_PRINCIPAL,
  44   SCTAG_DOM_SYSTEM_PRINCIPAL,
  45   SCTAG_DOM_CONTENT_PRINCIPAL,
  46
  47   SCTAG_DOM_IMAGEBITMAP,
  48
  49   SCTAG_DOM_RTC_CERTIFICATE,
  50
  51   SCTAG_DOM_FORMDATA,
  52
  53   // This tag is for OffscreenCanvas.
  54   SCTAG_DOM_CANVAS,
  55
  56   SCTAG_DOM_EXPANDED_PRINCIPAL,
  57
  58   SCTAG_DOM_DIRECTORY,
  59
  60   // This tag is used by both main thread and workers.
  61   SCTAG_DOM_URLSEARCHPARAMS,
  62
  63   SCTAG_DOM_INPUTSTREAM,
  64
  65   SCTAG_DOM_STRUCTURED_CLONE_HOLDER,
  66
  67   // When adding a new tag for IDB, please don't add it to the end of the list!
  68   // Tags that are supported by IDB must not ever change. See the static assert
  69   // in IDBObjectStore.cpp, method CommonStructuredCloneReadCallback.
  70   // Adding to the end of the list would make removing of other tags harder in
  71   // future.
  72
  73   SCTAG_DOM_MAX,
  74
  75   SCTAG_DOM_STRUCTURED_CLONE_TESTER,
  76
  77   // Principal written out by worker threads when serializing objects. When
  78   // reading on the main thread this principal will be converted to a normal
  79   // principal object using nsJSPrincipals::AutoSetActiveWorkerPrincipal.
  80   SCTAG_DOM_WORKER_PRINCIPAL
  81 };
  82
  83 }  // namespace dom
  84 }  // namespace mozilla
  85
  86 #endif  // StructuredCloneTags_h__