xpcom/ds/nsArray.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 nsArray_h__
   8 #define nsArray_h__
   9
  10 #include "nsIMutableArray.h"
  11 #include "nsCOMArray.h"
  12 #include "nsCOMPtr.h"
  13 #include "nsCycleCollectionParticipant.h"
  14 #include "mozilla/Attributes.h"
  15
  16 // {35C66FD1-95E9-4e0a-80C5-C3BD2B375481}
  17 #define NS_ARRAY_CID                                 \
  18   {                                                  \
  19     0x35c66fd1, 0x95e9, 0x4e0a, {                    \
  20       0x80, 0xc5, 0xc3, 0xbd, 0x2b, 0x37, 0x54, 0x81 \
  21     }                                                \
  22   }
  23
  24 // nsArray without any refcounting declarations
  25 class nsArrayBase : public nsIMutableArray {
  26  public:
  27   NS_DECL_NSIARRAY
  28   NS_DECL_NSIARRAYEXTENSIONS
  29   NS_DECL_NSIMUTABLEARRAY
  30
  31   /* Both of these factory functions create a cycle-collectable array
  32      on the main thread and a non-cycle-collectable array on other
  33      threads.  */
  34   static already_AddRefed<nsIMutableArray> Create();
  35   /* Only for the benefit of the XPCOM module system, use Create()
  36      instead.  */
  37   static nsresult XPCOMConstructor(const nsIID& aIID, void** aResult);
  38
  39  protected:
  40   nsArrayBase() = default;
  41   nsArrayBase(const nsArrayBase& aOther);
  42   explicit nsArrayBase(const nsCOMArray_base& aBaseArray)
  43       : mArray(aBaseArray) {}
  44   virtual ~nsArrayBase();
  45
  46   nsCOMArray_base mArray;
  47 };
  48
  49 class nsArray final : public nsArrayBase {
  50   friend class nsArrayBase;
  51
  52  public:
  53   NS_DECL_ISUPPORTS
  54
  55  private:
  56   nsArray() {}
  57   nsArray(const nsArray& aOther);
  58   explicit nsArray(const nsCOMArray_base& aBaseArray)
  59       : nsArrayBase(aBaseArray) {}
  60   ~nsArray() = default;
  61 };
  62
  63 class nsArrayCC final : public nsArrayBase {
  64   friend class nsArrayBase;
  65
  66  public:
  67   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  68   NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsArrayCC, nsIMutableArray)
  69
  70  private:
  71   nsArrayCC() {}
  72   nsArrayCC(const nsArrayCC& aOther);
  73   explicit nsArrayCC(const nsCOMArray_base& aBaseArray)
  74       : nsArrayBase(aBaseArray) {}
  75   ~nsArrayCC() = default;
  76 };
  77
  78 #endif