xpcom/glue/nsCycleCollectionNoteChild.h@129ffea94266 (annotated)
xpcom/glue/nsCycleCollectionNoteChild.h
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | // This header will be included by headers that define refpointer and array classes |
| michael@0 | 7 | // in order to specialize CC helpers such as ImplCycleCollectionTraverse for them. |
| michael@0 | 8 | |
| michael@0 | 9 | #ifndef nsCycleCollectionNoteChild_h__ |
| michael@0 | 10 | #define nsCycleCollectionNoteChild_h__ |
| michael@0 | 11 | |
| michael@0 | 12 | #include "nsCycleCollectionTraversalCallback.h" |
| michael@0 | 13 | #include "mozilla/Likely.h" |
| michael@0 | 14 | #include "mozilla/TypeTraits.h" |
| michael@0 | 15 | |
| michael@0 | 16 | enum { |
| michael@0 | 17 | CycleCollectionEdgeNameArrayFlag = 1 |
| michael@0 | 18 | }; |
| michael@0 | 19 | |
| michael@0 | 20 | // Just a helper for appending "[i]". Didn't want to pull in string headers here. |
| michael@0 | 21 | void |
| michael@0 | 22 | CycleCollectionNoteEdgeNameImpl(nsCycleCollectionTraversalCallback& aCallback, |
| michael@0 | 23 | const char* aName, |
| michael@0 | 24 | uint32_t aFlags = 0); |
| michael@0 | 25 | |
| michael@0 | 26 | // Should be inlined so that in the no-debug-info case this is just a simple if(). |
| michael@0 | 27 | MOZ_ALWAYS_INLINE void |
| michael@0 | 28 | CycleCollectionNoteEdgeName(nsCycleCollectionTraversalCallback& aCallback, |
| michael@0 | 29 | const char* aName, |
| michael@0 | 30 | uint32_t aFlags = 0) |
| michael@0 | 31 | { |
| michael@0 | 32 | if (MOZ_UNLIKELY(aCallback.WantDebugInfo())) { |
| michael@0 | 33 | CycleCollectionNoteEdgeNameImpl(aCallback, aName, aFlags); |
| michael@0 | 34 | } |
| michael@0 | 35 | } |
| michael@0 | 36 | |
| michael@0 | 37 | #define NS_CYCLE_COLLECTION_INNERCLASS \ |
| michael@0 | 38 | cycleCollection |
| michael@0 | 39 | |
| michael@0 | 40 | #define NS_CYCLE_COLLECTION_INNERNAME \ |
| michael@0 | 41 | _cycleCollectorGlobal |
| michael@0 | 42 | |
| michael@0 | 43 | #define NS_CYCLE_COLLECTION_PARTICIPANT(_class) \ |
| michael@0 | 44 | _class::NS_CYCLE_COLLECTION_INNERCLASS::GetParticipant() |
| michael@0 | 45 | |
| michael@0 | 46 | template <typename T> |
| michael@0 | 47 | nsISupports* ToSupports(T* p, typename T::NS_CYCLE_COLLECTION_INNERCLASS* dummy = 0) |
| michael@0 | 48 | { |
| michael@0 | 49 | return T::NS_CYCLE_COLLECTION_INNERCLASS::Upcast(p); |
| michael@0 | 50 | } |
| michael@0 | 51 | |
| michael@0 | 52 | // The default implementation of this class template is empty, because it |
| michael@0 | 53 | // should never be used: see the partial specializations below. |
| michael@0 | 54 | template <typename T, |
| michael@0 | 55 | bool IsXPCOM = mozilla::IsBaseOf<nsISupports, T>::value> |
| michael@0 | 56 | struct CycleCollectionNoteChildImpl |
| michael@0 | 57 | { |
| michael@0 | 58 | }; |
| michael@0 | 59 | |
| michael@0 | 60 | template <typename T> |
| michael@0 | 61 | struct CycleCollectionNoteChildImpl<T, true> |
| michael@0 | 62 | { |
| michael@0 | 63 | static void Run(nsCycleCollectionTraversalCallback& aCallback, T* aChild) |
| michael@0 | 64 | { |
| michael@0 | 65 | aCallback.NoteXPCOMChild(ToSupports(aChild)); |
| michael@0 | 66 | } |
| michael@0 | 67 | }; |
| michael@0 | 68 | |
| michael@0 | 69 | template <typename T> |
| michael@0 | 70 | struct CycleCollectionNoteChildImpl<T, false> |
| michael@0 | 71 | { |
| michael@0 | 72 | static void Run(nsCycleCollectionTraversalCallback& aCallback, T* aChild) |
| michael@0 | 73 | { |
| michael@0 | 74 | aCallback.NoteNativeChild(aChild, NS_CYCLE_COLLECTION_PARTICIPANT(T)); |
| michael@0 | 75 | } |
| michael@0 | 76 | }; |
| michael@0 | 77 | |
| michael@0 | 78 | template <typename T> |
| michael@0 | 79 | inline void CycleCollectionNoteChild(nsCycleCollectionTraversalCallback& aCallback, |
| michael@0 | 80 | T* aChild, |
| michael@0 | 81 | const char* aName, |
| michael@0 | 82 | uint32_t aFlags = 0) |
| michael@0 | 83 | { |
| michael@0 | 84 | CycleCollectionNoteEdgeName(aCallback, aName, aFlags); |
| michael@0 | 85 | CycleCollectionNoteChildImpl<T>::Run(aCallback, aChild); |
| michael@0 | 86 | } |
| michael@0 | 87 | |
| michael@0 | 88 | #endif // nsCycleCollectionNoteChild_h__ |
