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ArenaObjectID

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/* enum type for objects that can be allocated by an nsPresArena */

#ifndef mozilla_ArenaObjectID_h
#define mozilla_ArenaObjectID_h

#include "nsQueryFrame.h"

namespace mozilla {

enum ArenaObjectID {
  eArenaObjectID_DummyBeforeFirstObjectID = nsQueryFrame::NON_FRAME_MARKER - 1,

#define PRES_ARENA_OBJECT(name_) \
  eArenaObjectID_##name_,
#include "nsPresArenaObjectList.h"
#undef PRES_ARENA_OBJECT

  /**
   * The PresArena implementation uses this bit to distinguish objects
   * allocated by size from objects allocated by type ID (that is, frames
   * using AllocateByFrameID and other objects using AllocateByObjectID).
   * It should not collide with any Object ID (above) or frame ID (in
   * nsQueryFrame.h).  It is not 0x80000000 to avoid the question of
   * whether enumeration constants are signed.
   */
  eArenaObjectID_NON_OBJECT_MARKER = 0x40000000
};

};

#endif