/src/mozilla-central/xpcom/base/nsCycleCollectionNoteChild.h

Source (jump to first uncovered line)
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */

// This header will be included by headers that define refpointer and array classes
// in order to specialize CC helpers such as ImplCycleCollectionTraverse for them.

#ifndef nsCycleCollectionNoteChild_h__
#define nsCycleCollectionNoteChild_h__

#include "nsCycleCollectionTraversalCallback.h"
#include "mozilla/Likely.h"
#include "mozilla/TypeTraits.h"

enum
{
  CycleCollectionEdgeNameArrayFlag = 1
};

// Just a helper for appending "[i]". Didn't want to pull in string headers here.
void
CycleCollectionNoteEdgeNameImpl(nsCycleCollectionTraversalCallback& aCallback,
                                const char* aName,
                                uint32_t aFlags = 0);

// Should be inlined so that in the no-debug-info case this is just a simple if().
MOZ_ALWAYS_INLINE void
CycleCollectionNoteEdgeName(nsCycleCollectionTraversalCallback& aCallback,
                            const char* aName,
                            uint32_t aFlags = 0)
{
  if (MOZ_UNLIKELY(aCallback.WantDebugInfo())) {
    CycleCollectionNoteEdgeNameImpl(aCallback, aName, aFlags);
  }
}

#define NS_CYCLE_COLLECTION_INNERCLASS                                         \
        cycleCollection

#define NS_CYCLE_COLLECTION_INNERNAME                                          \
        _cycleCollectorGlobal

#define NS_CYCLE_COLLECTION_PARTICIPANT(_class)                                \
        _class::NS_CYCLE_COLLECTION_INNERCLASS::GetParticipant()

template<typename T>
nsISupports*
ToSupports(T* aPtr, typename T::NS_CYCLE_COLLECTION_INNERCLASS* aDummy = 0)
{
  return T::NS_CYCLE_COLLECTION_INNERCLASS::Upcast(aPtr);
}

// The default implementation of this class template is empty, because it
// should never be used: see the partial specializations below.
template<typename T,
         bool IsXPCOM = mozilla::IsBaseOf<nsISupports, T>::value>
struct CycleCollectionNoteChildImpl
{
};

template<typename T>
struct CycleCollectionNoteChildImpl<T, true>
{
  static void Run(nsCycleCollectionTraversalCallback& aCallback, T* aChild)
  {
    aCallback.NoteXPCOMChild(ToSupports(aChild));
  }
};

template<typename T>
struct CycleCollectionNoteChildImpl<T, false>
{
  static void Run(nsCycleCollectionTraversalCallback& aCallback, T* aChild)
  {
    aCallback.NoteNativeChild(aChild, NS_CYCLE_COLLECTION_PARTICIPANT(T));
  }
};

// We declare CycleCollectionNoteChild in 3-argument and 4-argument variants,
// rather than using default arguments, so that forward declarations work
// regardless of header inclusion order.
template<typename T>
inline void
CycleCollectionNoteChild(nsCycleCollectionTraversalCallback& aCallback,
                         T* aChild, const char* aName, uint32_t aFlags)
{
  CycleCollectionNoteEdgeName(aCallback, aName, aFlags);
  CycleCollectionNoteChildImpl<T>::Run(aCallback, aChild);
}

template<typename T>
inline void
CycleCollectionNoteChild(nsCycleCollectionTraversalCallback& aCallback,
                         T* aChild, const char* aName)
{
  CycleCollectionNoteChild(aCallback, aChild, aName, 0);
}

#endif // nsCycleCollectionNoteChild_h__

Line	Count	Source (jump to first uncovered line)
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		// This header will be included by headers that define refpointer and array classes
8		// in order to specialize CC helpers such as ImplCycleCollectionTraverse for them.
9
10		#ifndef nsCycleCollectionNoteChild_h__
11		#define nsCycleCollectionNoteChild_h__
12
13		#include "nsCycleCollectionTraversalCallback.h"
14		#include "mozilla/Likely.h"
15		#include "mozilla/TypeTraits.h"
16
17		enum
18		{
19		CycleCollectionEdgeNameArrayFlag = 1
20		};
21
22		// Just a helper for appending "[i]". Didn't want to pull in string headers here.
23		void
24		CycleCollectionNoteEdgeNameImpl(nsCycleCollectionTraversalCallback& aCallback,
25		const char* aName,
26		uint32_t aFlags = 0);
27
28		// Should be inlined so that in the no-debug-info case this is just a simple if().
29		MOZ_ALWAYS_INLINE void
30		CycleCollectionNoteEdgeName(nsCycleCollectionTraversalCallback& aCallback,
31		const char* aName,
32		uint32_t aFlags = 0)
33	0	{
34	0	if (MOZ_UNLIKELY(aCallback.WantDebugInfo())) {
35	0	CycleCollectionNoteEdgeNameImpl(aCallback, aName, aFlags);
36	0	}
37	0	} Unexecuted instantiation: CycleCollectionNoteEdgeName(nsCycleCollectionTraversalCallback&, char const, unsigned int) Unexecuted instantiation: CycleCollectionNoteEdgeName(nsCycleCollectionTraversalCallback&, char const, unsigned int)
38
39		#define NS_CYCLE_COLLECTION_INNERCLASS \
40		cycleCollection
41
42		#define NS_CYCLE_COLLECTION_INNERNAME \
43	0	_cycleCollectorGlobal
44
45		#define NS_CYCLE_COLLECTION_PARTICIPANT(_class) \
46	0	_class::NS_CYCLE_COLLECTION_INNERCLASS::GetParticipant()
47
48		template<typename T>
49		nsISupports*
50		ToSupports(T* aPtr, typename T::NS_CYCLE_COLLECTION_INNERCLASS* aDummy = 0)
51	0	{
52	0	return T::NS_CYCLE_COLLECTION_INNERCLASS::Upcast(aPtr);
53	0	} Unexecuted instantiation: nsISupports* ToSupports<mozilla::dom::CallbackObject>(mozilla::dom::CallbackObject, mozilla::dom::CallbackObject::cycleCollection) Unexecuted instantiation: nsISupports* ToSupports<mozilla::dom::LifecycleAdoptedCallback>(mozilla::dom::LifecycleAdoptedCallback, mozilla::dom::LifecycleAdoptedCallback::cycleCollection) Unexecuted instantiation: nsISupports* ToSupports<mozilla::dom::LifecycleAttributeChangedCallback>(mozilla::dom::LifecycleAttributeChangedCallback, mozilla::dom::LifecycleAttributeChangedCallback::cycleCollection) Unexecuted instantiation: nsISupports* ToSupports<mozilla::dom::LifecycleConnectedCallback>(mozilla::dom::LifecycleConnectedCallback, mozilla::dom::LifecycleConnectedCallback::cycleCollection) Unexecuted instantiation: nsISupports* ToSupports<mozilla::dom::LifecycleDisconnectedCallback>(mozilla::dom::LifecycleDisconnectedCallback, mozilla::dom::LifecycleDisconnectedCallback::cycleCollection) Unexecuted instantiation: nsISupports* ToSupports<mozilla::dom::LifecycleGetCustomInterfaceCallback>(mozilla::dom::LifecycleGetCustomInterfaceCallback, mozilla::dom::LifecycleGetCustomInterfaceCallback::cycleCollection) Unexecuted instantiation: nsISupports* ToSupports<mozilla::dom::ProcessMessageManager>(mozilla::dom::ProcessMessageManager, mozilla::dom::ProcessMessageManager::cycleCollection) Unexecuted instantiation: nsISupports* ToSupports<mozilla::dom::TabChildMessageManager>(mozilla::dom::TabChildMessageManager, mozilla::dom::TabChildMessageManager::cycleCollection) Unexecuted instantiation: nsISupports* ToSupports<mozilla::dom::TabChild>(mozilla::dom::TabChild, mozilla::dom::TabChild::cycleCollection)
54
55		// The default implementation of this class template is empty, because it
56		// should never be used: see the partial specializations below.
57		template<typename T,
58		bool IsXPCOM = mozilla::IsBaseOf<nsISupports, T>::value>
59		struct CycleCollectionNoteChildImpl
60		{
61		};
62
63		template<typename T>
64		struct CycleCollectionNoteChildImpl<T, true>
65		{
66		static void Run(nsCycleCollectionTraversalCallback& aCallback, T* aChild)
67	0	{
68	0	aCallback.NoteXPCOMChild(ToSupports(aChild));
69	0	} Unexecuted instantiation: CycleCollectionNoteChildImpl<mozilla::dom::LifecycleAdoptedCallback, true>::Run(nsCycleCollectionTraversalCallback&, mozilla::dom::LifecycleAdoptedCallback) Unexecuted instantiation: CycleCollectionNoteChildImpl<mozilla::dom::LifecycleAttributeChangedCallback, true>::Run(nsCycleCollectionTraversalCallback&, mozilla::dom::LifecycleAttributeChangedCallback) Unexecuted instantiation: CycleCollectionNoteChildImpl<mozilla::dom::LifecycleConnectedCallback, true>::Run(nsCycleCollectionTraversalCallback&, mozilla::dom::LifecycleConnectedCallback) Unexecuted instantiation: CycleCollectionNoteChildImpl<mozilla::dom::LifecycleDisconnectedCallback, true>::Run(nsCycleCollectionTraversalCallback&, mozilla::dom::LifecycleDisconnectedCallback) Unexecuted instantiation: CycleCollectionNoteChildImpl<mozilla::dom::LifecycleGetCustomInterfaceCallback, true>::Run(nsCycleCollectionTraversalCallback&, mozilla::dom::LifecycleGetCustomInterfaceCallback) Unexecuted instantiation: CycleCollectionNoteChildImpl<mozilla::dom::TabChildMessageManager, true>::Run(nsCycleCollectionTraversalCallback&, mozilla::dom::TabChildMessageManager) Unexecuted instantiation: CycleCollectionNoteChildImpl<nsIWebBrowserChrome3, true>::Run(nsCycleCollectionTraversalCallback&, nsIWebBrowserChrome3) Unexecuted instantiation: CycleCollectionNoteChildImpl<nsIWebNavigation, true>::Run(nsCycleCollectionTraversalCallback&, nsIWebNavigation) Unexecuted instantiation: CycleCollectionNoteChildImpl<mozilla::dom::TabChild, true>::Run(nsCycleCollectionTraversalCallback&, mozilla::dom::TabChild*)
70		};
71
72		template<typename T>
73		struct CycleCollectionNoteChildImpl<T, false>
74		{
75		static void Run(nsCycleCollectionTraversalCallback& aCallback, T* aChild)
76		{
77		aCallback.NoteNativeChild(aChild, NS_CYCLE_COLLECTION_PARTICIPANT(T));
78		}
79		};
80
81		// We declare CycleCollectionNoteChild in 3-argument and 4-argument variants,
82		// rather than using default arguments, so that forward declarations work
83		// regardless of header inclusion order.
84		template<typename T>
85		inline void
86		CycleCollectionNoteChild(nsCycleCollectionTraversalCallback& aCallback,
87		T* aChild, const char* aName, uint32_t aFlags)
88	0	{
89	0	CycleCollectionNoteEdgeName(aCallback, aName, aFlags);
90	0	CycleCollectionNoteChildImpl<T>::Run(aCallback, aChild);
91	0	} Unexecuted instantiation: void CycleCollectionNoteChild<mozilla::dom::LifecycleAdoptedCallback>(nsCycleCollectionTraversalCallback&, mozilla::dom::LifecycleAdoptedCallback, char const, unsigned int) Unexecuted instantiation: void CycleCollectionNoteChild<mozilla::dom::LifecycleAttributeChangedCallback>(nsCycleCollectionTraversalCallback&, mozilla::dom::LifecycleAttributeChangedCallback, char const, unsigned int) Unexecuted instantiation: void CycleCollectionNoteChild<mozilla::dom::LifecycleConnectedCallback>(nsCycleCollectionTraversalCallback&, mozilla::dom::LifecycleConnectedCallback, char const, unsigned int) Unexecuted instantiation: void CycleCollectionNoteChild<mozilla::dom::LifecycleDisconnectedCallback>(nsCycleCollectionTraversalCallback&, mozilla::dom::LifecycleDisconnectedCallback, char const, unsigned int) Unexecuted instantiation: void CycleCollectionNoteChild<mozilla::dom::LifecycleGetCustomInterfaceCallback>(nsCycleCollectionTraversalCallback&, mozilla::dom::LifecycleGetCustomInterfaceCallback, char const, unsigned int) Unexecuted instantiation: void CycleCollectionNoteChild<mozilla::dom::TabChildMessageManager>(nsCycleCollectionTraversalCallback&, mozilla::dom::TabChildMessageManager, char const, unsigned int) Unexecuted instantiation: void CycleCollectionNoteChild<nsIWebBrowserChrome3>(nsCycleCollectionTraversalCallback&, nsIWebBrowserChrome3, char const, unsigned int) Unexecuted instantiation: void CycleCollectionNoteChild<nsIWebNavigation>(nsCycleCollectionTraversalCallback&, nsIWebNavigation, char const, unsigned int) Unexecuted instantiation: void CycleCollectionNoteChild<mozilla::dom::TabChild>(nsCycleCollectionTraversalCallback&, mozilla::dom::TabChild, char const, unsigned int)
92
93		template<typename T>
94		inline void
95		CycleCollectionNoteChild(nsCycleCollectionTraversalCallback& aCallback,
96		T* aChild, const char* aName)
97		{
98		CycleCollectionNoteChild(aCallback, aChild, aName, 0);
99		}
100
101		#endif // nsCycleCollectionNoteChild_h__

Coverage Report

Created: 2018-09-25 14:53