/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* 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/. */ #ifndef nsCycleCollectionParticipant_h__ #define nsCycleCollectionParticipant_h__ #include "mozilla/TypeTraits.h" #include "nsISupports.h" #define NS_CYCLECOLLECTIONPARTICIPANT_IID \ { \ 0x9674489b, \ 0x1f6f, \ 0x4550, \ { 0xa7, 0x30, 0xcc, 0xae, 0xdd, 0x10, 0x4c, 0xf9 } \ } /** * Special IID to get at the base nsISupports for a class. Usually this is the * canonical nsISupports pointer, but in the case of tearoffs for example it is * the base nsISupports pointer of the tearoff. This allow the cycle collector * to have separate nsCycleCollectionParticipant's for tearoffs or aggregated * classes. */ #define NS_CYCLECOLLECTIONISUPPORTS_IID \ { \ 0xc61eac14, \ 0x5f7a, \ 0x4481, \ { 0x96, 0x5e, 0x7e, 0xaa, 0x6e, 0xff, 0xa8, 0x5f } \ } /** * Just holds the IID so NS_GET_IID works. */ class nsCycleCollectionISupports { public: NS_DECLARE_STATIC_IID_ACCESSOR(NS_CYCLECOLLECTIONISUPPORTS_IID) }; NS_DEFINE_STATIC_IID_ACCESSOR(nsCycleCollectionISupports, NS_CYCLECOLLECTIONISUPPORTS_IID) /** * Forward declarations */ class nsCycleCollectionParticipant; class nsScriptObjectTracer; class nsXPCOMCycleCollectionParticipant; /** * Callback definitions */ typedef void (* TraceCallback)(void *p, const char *name, void *closure); class NS_NO_VTABLE nsCycleCollectionTraversalCallback { public: // You must call DescribeRefCountedNode() with an accurate // refcount, otherwise cycle collection will fail, and probably crash. // If the callback cares about objname, it should put // WANT_DEBUG_INFO in mFlags. NS_IMETHOD_(void) DescribeRefCountedNode(nsrefcnt refcount, const char *objname) = 0; NS_IMETHOD_(void) DescribeGCedNode(bool ismarked, const char *objname) = 0; NS_IMETHOD_(void) NoteXPCOMRoot(nsISupports *root) = 0; NS_IMETHOD_(void) NoteJSRoot(void *root) = 0; NS_IMETHOD_(void) NoteNativeRoot(void *root, nsCycleCollectionParticipant *participant) = 0; NS_IMETHOD_(void) NoteXPCOMChild(nsISupports *child) = 0; NS_IMETHOD_(void) NoteJSChild(void *child) = 0; NS_IMETHOD_(void) NoteNativeChild(void *child, nsCycleCollectionParticipant *helper) = 0; // Give a name to the edge associated with the next call to // NoteXPCOMChild, NoteJSChild, or NoteNativeChild. // Callbacks who care about this should set WANT_DEBUG_INFO in the // flags. NS_IMETHOD_(void) NoteNextEdgeName(const char* name) = 0; NS_IMETHOD_(void) NoteWeakMapping(void *map, void *key, void *val) = 0; enum { // Values for flags: // Caller should call NoteNextEdgeName and pass useful objName // to DescribeRefCountedNode and DescribeGCedNode. WANT_DEBUG_INFO = (1<<0), // Caller should not skip objects that we know will be // uncollectable. WANT_ALL_TRACES = (1<<1) }; uint32_t Flags() const { return mFlags; } bool WantDebugInfo() const { return (mFlags & WANT_DEBUG_INFO) != 0; } bool WantAllTraces() const { return (mFlags & WANT_ALL_TRACES) != 0; } protected: nsCycleCollectionTraversalCallback() : mFlags(0) {} uint32_t mFlags; }; /** * VTables * * When using global scope static initialization for simple types with virtual * member functions, GCC creates static initializer functions. In order to * avoid this from happening, cycle collection participants are defined as * function tables. * * The Traverse function may require calling another function from the cycle * collection participant function table, so a pointer to the function table * is given to it. Using member function pointers would be less awkward, but * in MSVC, the size of such a member function pointer depends on the class * the function is member of. This makes it hard to make them compatible with * a generic function table. Moreover, static initialization of the function * table then uses a static initializer function. * * Finally, it is not possible to use an initializer list for non-aggregate * types. Separate types are thus required for static initialization. For * convenience and to avoid repetitions that could lead to discrepancies, * function table members for sub-types are declared independently, and * different aggregate types are defined for static initialization. */ /* Base functions for nsCycleCollectionParticipant */ template struct nsCycleCollectionParticipantVTableCommon { nsresult (NS_STDCALL *TraverseReal) (T *that, void *p, nsCycleCollectionTraversalCallback &cb); nsresult (NS_STDCALL *Root)(void *p); nsresult (NS_STDCALL *Unlink)(void *p); nsresult (NS_STDCALL *Unroot)(void *p); void (NS_STDCALL *UnmarkIfPurple)(void *p); bool (NS_STDCALL *CanSkipReal)(void *p, bool aRemovingAllowed); bool (NS_STDCALL *CanSkipInCCReal)(void *p); bool (NS_STDCALL *CanSkipThisReal)(void *p); }; typedef nsCycleCollectionParticipantVTableCommon nsCycleCollectionParticipantVTable; /* Additional functions for nsScriptObjectTracer */ struct nsScriptObjectTracerVTable { void (NS_STDCALL *Trace)(void *p, TraceCallback cb, void *closure); }; /** * Types for static initialization * * Considering T, the cycle collection participant class, subclass of either * nsCycleCollectionParticipant, nsScriptObjectTracer or * nsXPCOMCycleCollectionParticipant, static initialization goes as follows: * * CCParticipantVTable::type T::_cycleCollectorGlobal = {{...} ...}; * * CCParticipantVTable::type automatically defines the right type considering * what particular cycle collection participant class T derives from. * * The NS_IMPL_CYCLE_COLLECTION_NATIVE_VTABLE(classname), * NS_IMPL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_VTABLE(classname), and * NS_IMPL_CYCLE_COLLECTION_VTABLE(classname) macros may be used as helpers * for static initialization: * * CCParticipantVTable::type T::_cycleCollectorGlobal = { * NS_IMPL_CYCLE_COLLECTION_NATIVE_VTABLE(classname); * }; */ enum nsCycleCollectionParticipantType { eInvalid, eCycleCollectionParticipant, eScriptObjectTracer, eXPCOMCycleCollectionParticipant }; template struct CCParticipantVTableImpl { }; /* CCParticipantVTable for nsCycleCollectionParticipant */ template struct CCParticipantVTableImpl { nsCycleCollectionParticipant *GetParticipant() const { return const_cast (reinterpret_cast(this)); } nsCycleCollectionParticipantVTableCommon cycleCollectionParticipant; }; /* CCParticipantVTable for nsScriptObjectTracer */ template struct CCParticipantVTableImpl { nsScriptObjectTracer *GetParticipant() const { return const_cast (reinterpret_cast(this)); } nsCycleCollectionParticipantVTableCommon cycleCollectionParticipant; nsScriptObjectTracerVTable scriptObjectTracer; }; /* CCParticipantVTable for nsXPCOMCycleCollectionParticipant */ template struct CCParticipantVTableImpl { nsXPCOMCycleCollectionParticipant *GetParticipant() const { return const_cast (reinterpret_cast(this)); } nsCycleCollectionParticipantVTableCommon cycleCollectionParticipant; nsScriptObjectTracerVTable scriptObjectTracer; }; template struct CCParticipantVTable { static const enum nsCycleCollectionParticipantType ParticipantType = mozilla::IsBaseOf::value ? eXPCOMCycleCollectionParticipant : mozilla::IsBaseOf::value ? eScriptObjectTracer : mozilla::IsBaseOf::value ? eCycleCollectionParticipant : eInvalid; typedef CCParticipantVTableImpl Type; }; /** * Participant implementation classes */ class nsCycleCollectionParticipant : public nsCycleCollectionParticipantVTable { public: static const bool isSkippable = false; NS_DECLARE_STATIC_IID_ACCESSOR(NS_CYCLECOLLECTIONPARTICIPANT_IID) // Helper function to avoid painful syntax for member function call using // the VTable entry. NS_METHOD Traverse(void *p, nsCycleCollectionTraversalCallback &cb) { return TraverseReal(this, p, cb); } // If CanSkip returns true, p is removed from the purple buffer during // a call to nsCycleCollector_forgetSkippable(). // Note, calling CanSkip may remove objects from the purple buffer! // If aRemovingAllowed is true, p can be removed from the purple buffer. bool CanSkip(void *p, bool aRemovingAllowed) { return CanSkipReal ? CanSkipReal(p, aRemovingAllowed) : false; } // If CanSkipInCC returns true, p is skipped when selecting roots for the // cycle collector graph. // Note, calling CanSkipInCC may remove other objects from the purple buffer! bool CanSkipInCC(void *p) { return CanSkipInCCReal ? CanSkipInCCReal(p) : false; } // If CanSkipThis returns true, p is not added to the graph. // This method is called during cycle collection, so don't // change the state of any objects! bool CanSkipThis(void *p) { return CanSkipThisReal ? CanSkipThisReal(p) : false; } }; NS_DEFINE_STATIC_IID_ACCESSOR(nsCycleCollectionParticipant, NS_CYCLECOLLECTIONPARTICIPANT_IID) class nsScriptObjectTracer : public nsCycleCollectionParticipant, public nsScriptObjectTracerVTable { public: static void NS_COM_GLUE NoteJSChild(void *aScriptThing, const char *name, void *aClosure); }; class nsXPCOMCycleCollectionParticipant : public nsScriptObjectTracer { public: static NS_METHOD RootImpl(void *p); static NS_METHOD UnrootImpl(void *p); static NS_METHOD_(void) TraceImpl(void *p, TraceCallback cb, void *closure); static bool CheckForRightISupports(nsISupports *s); }; /////////////////////////////////////////////////////////////////////////////// // Helpers for implementing a QI to nsXPCOMCycleCollectionParticipant /////////////////////////////////////////////////////////////////////////////// #define NS_CYCLE_COLLECTION_INNERCLASS \ cycleCollection #define NS_CYCLE_COLLECTION_CLASSNAME(_class) \ _class::NS_CYCLE_COLLECTION_INNERCLASS #define NS_CYCLE_COLLECTION_INNERNAME \ _cycleCollectorGlobal #define NS_CYCLE_COLLECTION_PARTICIPANT(_class) \ _class::NS_CYCLE_COLLECTION_INNERNAME.GetParticipant() #define NS_IMPL_QUERY_CYCLE_COLLECTION(_class) \ if ( aIID.Equals(NS_GET_IID(nsXPCOMCycleCollectionParticipant)) ) { \ *aInstancePtr = NS_CYCLE_COLLECTION_PARTICIPANT(_class); \ return NS_OK; \ } else #define NS_IMPL_QUERY_CYCLE_COLLECTION_ISUPPORTS(_class) \ if ( aIID.Equals(NS_GET_IID(nsCycleCollectionISupports)) ) { \ *aInstancePtr = NS_CYCLE_COLLECTION_CLASSNAME(_class)::Upcast(this); \ return NS_OK; \ } else #define NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION(_class) \ NS_IMPL_QUERY_CYCLE_COLLECTION(_class) #define NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION_ISUPPORTS(_class) \ NS_IMPL_QUERY_CYCLE_COLLECTION_ISUPPORTS(_class) #define NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(_class) \ NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION(_class) \ NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION_ISUPPORTS(_class) #define NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(_class) \ NS_INTERFACE_MAP_BEGIN(_class) \ NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(_class) #define NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(_class) \ NS_INTERFACE_MAP_BEGIN(_class) \ NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION(_class) #define NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(_class) \ if (rv == NS_OK) return rv; \ nsISupports* foundInterface; \ NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(_class) #define NS_INTERFACE_TABLE_HEAD_CYCLE_COLLECTION_INHERITED(_class) \ NS_IMETHODIMP _class::QueryInterface(REFNSIID aIID, void** aInstancePtr) \ { \ NS_PRECONDITION(aInstancePtr, "null out param"); \ \ if ( aIID.Equals(NS_GET_IID(nsXPCOMCycleCollectionParticipant)) ) { \ *aInstancePtr = NS_CYCLE_COLLECTION_PARTICIPANT(_class); \ return NS_OK; \ } \ nsresult rv; #define NS_CYCLE_COLLECTION_UPCAST(obj, clazz) \ NS_CYCLE_COLLECTION_CLASSNAME(clazz)::Upcast(obj) /////////////////////////////////////////////////////////////////////////////// // Helpers for implementing CanSkip methods /////////////////////////////////////////////////////////////////////////////// #define NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_BEGIN(_class) \ NS_METHOD_(bool) \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::CanSkipImpl(void *p, \ bool aRemovingAllowed) \ { \ nsISupports *s = static_cast(p); \ NS_ASSERTION(CheckForRightISupports(s), \ "not the nsISupports pointer we expect"); \ _class *tmp = Downcast(s); #define NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_END \ (void)tmp; \ return false; \ } #define NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_BEGIN(_class) \ NS_METHOD_(bool) \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::CanSkipInCCImpl(void *p) \ { \ nsISupports *s = static_cast(p); \ NS_ASSERTION(CheckForRightISupports(s), \ "not the nsISupports pointer we expect"); \ _class *tmp = Downcast(s); #define NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_END \ (void)tmp; \ return false; \ } #define NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_BEGIN(_class) \ NS_METHOD_(bool) \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::CanSkipThisImpl(void *p) \ { \ nsISupports *s = static_cast(p); \ NS_ASSERTION(CheckForRightISupports(s), \ "not the nsISupports pointer we expect"); \ _class *tmp = Downcast(s); #define NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_END \ (void)tmp; \ return false; \ } /////////////////////////////////////////////////////////////////////////////// // Helpers for implementing nsCycleCollectionParticipant::Unlink /////////////////////////////////////////////////////////////////////////////// #define NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_METHOD \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::UnlinkImpl(void *p) \ { \ nsISupports *s = static_cast(p); \ NS_ASSERTION(CheckForRightISupports(s), \ "not the nsISupports pointer we expect"); \ _class *tmp = Downcast(s); #define NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(_class, _base_class) \ NS_METHOD \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::UnlinkImpl(void *p) \ { \ nsISupports *s = static_cast(p); \ NS_ASSERTION(CheckForRightISupports(s), \ "not the nsISupports pointer we expect"); \ _class *tmp = static_cast<_class*>(Downcast(s)); \ NS_CYCLE_COLLECTION_CLASSNAME(_base_class)::UnlinkImpl(s); #define NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_NATIVE(_class) \ NS_METHOD \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::UnlinkImpl(void *p) \ { \ _class *tmp = static_cast<_class*>(p); #define NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_field) \ tmp->_field = NULL; #define NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMARRAY(_field) \ tmp->_field.Clear(); #define NS_IMPL_CYCLE_COLLECTION_UNLINK_NSTARRAY(_field) \ tmp->_field.Clear(); #define NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ (void)tmp; \ return NS_OK; \ } #define NS_IMPL_CYCLE_COLLECTION_UNLINK_0(_class) \ NS_METHOD \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::UnlinkImpl(void *p) \ { \ NS_ASSERTION(CheckForRightISupports(static_cast(p)), \ "not the nsISupports pointer we expect"); \ return NS_OK; \ } #define NS_IMPL_CYCLE_COLLECTION_UNLINK_NATIVE_0(_class) \ NS_METHOD \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::UnlinkImpl(void *p) \ { \ return NS_OK; \ } /////////////////////////////////////////////////////////////////////////////// // Helpers for implementing nsCycleCollectionParticipant::Traverse /////////////////////////////////////////////////////////////////////////////// #define NS_IMPL_CYCLE_COLLECTION_DESCRIBE(_class, _refcnt) \ cb.DescribeRefCountedNode(_refcnt, #_class); #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INTERNAL(_class) \ NS_METHOD \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::TraverseImpl \ (NS_CYCLE_COLLECTION_CLASSNAME(_class) *that, void *p,\ nsCycleCollectionTraversalCallback &cb) \ { \ nsISupports *s = static_cast(p); \ NS_ASSERTION(CheckForRightISupports(s), \ "not the nsISupports pointer we expect"); \ _class *tmp = static_cast<_class*>(Downcast(s)); #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INTERNAL(_class) \ NS_IMPL_CYCLE_COLLECTION_DESCRIBE(_class, tmp->mRefCnt.get()) // Base class' CC participant should return NS_SUCCESS_INTERRUPTED_TRAVERSE // from Traverse if it wants derived classes to not traverse anything from // their CC participant. #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(_class, _base_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INTERNAL(_class) \ if (NS_CYCLE_COLLECTION_CLASSNAME(_base_class)::TraverseImpl(that, s, cb) \ == NS_SUCCESS_INTERRUPTED_TRAVERSE) { \ return NS_SUCCESS_INTERRUPTED_TRAVERSE; \ } #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_BEGIN(_class) \ NS_METHOD \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::TraverseImpl \ (NS_CYCLE_COLLECTION_CLASSNAME(_class) *that, void *p,\ nsCycleCollectionTraversalCallback &cb) \ { \ _class *tmp = static_cast<_class*>(p); \ NS_IMPL_CYCLE_COLLECTION_DESCRIBE(_class, tmp->mRefCnt.get()) #define NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(_cb, _name) \ PR_BEGIN_MACRO \ if (NS_UNLIKELY((_cb).WantDebugInfo())) { \ (_cb).NoteNextEdgeName(_name); \ } \ PR_END_MACRO #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_RAWPTR(_field) \ PR_BEGIN_MACRO \ NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field); \ cb.NoteXPCOMChild(tmp->_field); \ PR_END_MACRO; #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_field) \ PR_BEGIN_MACRO \ NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field); \ cb.NoteXPCOMChild(tmp->_field.get()); \ PR_END_MACRO; #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR_AMBIGUOUS(_field, _base) \ PR_BEGIN_MACRO \ NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field); \ cb.NoteXPCOMChild(NS_ISUPPORTS_CAST(_base*, tmp->_field)); \ PR_END_MACRO; #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMARRAY(_field) \ { \ int32_t i; \ for (i = 0; i < tmp->_field.Count(); ++i) { \ NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field "[i]"); \ cb.NoteXPCOMChild(tmp->_field[i]); \ } \ } #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_PTR(_ptr, _ptr_class, _name) \ PR_BEGIN_MACRO \ NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, _name); \ cb.NoteNativeChild(_ptr, NS_CYCLE_COLLECTION_PARTICIPANT(_ptr_class)); \ PR_END_MACRO; #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_MEMBER(_field, _field_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_PTR(tmp->_field, _field_class, \ #_field) #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSTARRAY(_array, _element_class, \ _name) \ { \ uint32_t i, length = (_array).Length(); \ for (i = 0; i < length; ++i) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_PTR((_array)[i], \ _element_class, \ _name "[i]"); \ } #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSTARRAY_OF_NSCOMPTR(_field) \ { \ uint32_t i, length = tmp->_field.Length(); \ for (i = 0; i < length; ++i) { \ NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, #_field "[i]"); \ cb.NoteXPCOMChild(tmp->_field[i].get()); \ } \ } #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSTARRAY_MEMBER(_field, \ _element_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSTARRAY(tmp->_field, _element_class, \ #_field) #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \ that->Trace(p, &nsScriptObjectTracer::NoteJSChild, &cb); #define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \ (void)tmp; \ return NS_OK; \ } /////////////////////////////////////////////////////////////////////////////// // Helpers for implementing nsScriptObjectTracer::Trace /////////////////////////////////////////////////////////////////////////////// #define NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(_class) \ void \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::TraceImpl(void *p, \ TraceCallback aCallback, \ void *aClosure) \ { \ nsISupports *s = static_cast(p); \ NS_ASSERTION(CheckForRightISupports(s), \ "not the nsISupports pointer we expect"); \ _class *tmp = Downcast(s); #define NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(_class, _base_class) \ void \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::TraceImpl(void *p, \ TraceCallback aCallback, \ void *aClosure) \ { \ nsISupports *s = static_cast(p); \ NS_ASSERTION(CheckForRightISupports(s), \ "not the nsISupports pointer we expect"); \ _class *tmp = static_cast<_class*>(Downcast(s)); \ NS_CYCLE_COLLECTION_CLASSNAME(_base_class)::TraceImpl(s, \ aCallback, \ aClosure); #define NS_IMPL_CYCLE_COLLECTION_TRACE_NATIVE_BEGIN(_class) \ void \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::TraceImpl(void *p, \ TraceCallback aCallback, \ void *aClosure) \ { \ _class *tmp = static_cast<_class*>(p); #define NS_IMPL_CYCLE_COLLECTION_TRACE_JS_CALLBACK(_object, _name) \ if (_object) \ aCallback(_object, _name, aClosure); #define NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(_field) \ NS_IMPL_CYCLE_COLLECTION_TRACE_JS_CALLBACK(tmp->_field, #_field) #define NS_IMPL_CYCLE_COLLECTION_TRACE_JSVAL_MEMBER_CALLBACK(_field) \ if (JSVAL_IS_TRACEABLE(tmp->_field)) { \ void *gcThing = JSVAL_TO_TRACEABLE(tmp->_field); \ aCallback(gcThing, #_field, aClosure); \ } // NB: The (void)tmp; hack in the TRACE_END macro exists to support // implementations that don't need to do anything in their Trace method. // Without this hack, some compilers warn about the unused tmp local. #define NS_IMPL_CYCLE_COLLECTION_TRACE_END \ (void)tmp; \ } /////////////////////////////////////////////////////////////////////////////// // Helpers for implementing a concrete nsCycleCollectionParticipant /////////////////////////////////////////////////////////////////////////////// #define NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE \ static const CCParticipantVTable::Type \ NS_CYCLE_COLLECTION_INNERNAME; #define NS_DECL_CYCLE_COLLECTION_CLASS_BODY_NO_UNLINK(_class, _base) \ public: \ static NS_METHOD TraverseImpl(NS_CYCLE_COLLECTION_CLASSNAME(_class) *that, \ void *p, nsCycleCollectionTraversalCallback &cb); \ static NS_METHOD_(void) UnmarkIfPurpleImpl(void *s) \ { \ Downcast(static_cast(s))->UnmarkIfPurple(); \ } \ static _class* Downcast(nsISupports* s) \ { \ return static_cast<_class*>(static_cast<_base*>(s)); \ } \ static nsISupports* Upcast(_class *p) \ { \ return NS_ISUPPORTS_CAST(_base*, p); \ } #define NS_DECL_CYCLE_COLLECTION_CLASS_BODY(_class, _base) \ NS_DECL_CYCLE_COLLECTION_CLASS_BODY_NO_UNLINK(_class, _base) \ static NS_METHOD UnlinkImpl(void *p); #define NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(_class, _base) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public nsXPCOMCycleCollectionParticipant \ { \ NS_DECL_CYCLE_COLLECTION_CLASS_BODY(_class, _base) \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE #define NS_DECL_CYCLE_COLLECTION_CLASS(_class) \ NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(_class, _class) // Cycle collector helper for ambiguous classes that can sometimes be skipped. #define NS_DECL_CYCLE_COLLECTION_SKIPPABLE_CLASS_AMBIGUOUS(_class, _base) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public nsXPCOMCycleCollectionParticipant \ { \ NS_DECL_CYCLE_COLLECTION_CLASS_BODY(_class, _base) \ static const bool isSkippable = true; \ static NS_METHOD_(bool) CanSkipImpl(void *p, bool aRemovingAllowed); \ static NS_METHOD_(bool) CanSkipInCCImpl(void *p); \ static NS_METHOD_(bool) CanSkipThisImpl(void *p); \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE #define NS_DECL_CYCLE_COLLECTION_SKIPPABLE_CLASS(_class) \ NS_DECL_CYCLE_COLLECTION_SKIPPABLE_CLASS_AMBIGUOUS(_class, _class) #define NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(_class, _base) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public nsXPCOMCycleCollectionParticipant \ { \ NS_DECL_CYCLE_COLLECTION_CLASS_BODY(_class, _base) \ static NS_METHOD_(void) TraceImpl(void *p, TraceCallback cb, void *closure); \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE #define NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS_AMBIGUOUS(_class, _base) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public nsXPCOMCycleCollectionParticipant \ { \ NS_DECL_CYCLE_COLLECTION_CLASS_BODY(_class, _base) \ static const bool isSkippable = true; \ static NS_METHOD_(void) TraceImpl(void *p, TraceCallback cb, void *closure); \ static NS_METHOD_(bool) CanSkipImpl(void *p, bool aRemovingAllowed); \ static NS_METHOD_(bool) CanSkipInCCImpl(void *p); \ static NS_METHOD_(bool) CanSkipThisImpl(void *p); \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE #define NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS(_class) \ NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS_AMBIGUOUS(_class, _class) #define NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS_INHERITED(_class, \ _base_class) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public NS_CYCLE_COLLECTION_CLASSNAME(_base_class) \ { \ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY(_class, _base_class) \ static const bool isSkippable = true; \ static NS_METHOD_(void) TraceImpl(void *p, TraceCallback cb, void *closure); \ static NS_METHOD_(bool) CanSkipImpl(void *p, bool aRemovingAllowed); \ static NS_METHOD_(bool) CanSkipInCCImpl(void *p); \ static NS_METHOD_(bool) CanSkipThisImpl(void *p); \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE #define NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(_class) \ NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(_class, _class) #define NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY_NO_UNLINK(_class, \ _base_class) \ public: \ static NS_METHOD TraverseImpl(NS_CYCLE_COLLECTION_CLASSNAME(_class) *that, \ void *p, nsCycleCollectionTraversalCallback &cb); \ static _class* Downcast(nsISupports* s) \ { \ return static_cast<_class*>(static_cast<_base_class*>( \ NS_CYCLE_COLLECTION_CLASSNAME(_base_class)::Downcast(s))); \ } #define NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY(_class, _base_class) \ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY_NO_UNLINK(_class, _base_class) \ static NS_METHOD UnlinkImpl(void *p); #define NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(_class, _base_class) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public NS_CYCLE_COLLECTION_CLASSNAME(_base_class) \ { \ public: \ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY(_class, _base_class) \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE #define NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_NO_UNLINK(_class, \ _base_class) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public NS_CYCLE_COLLECTION_CLASSNAME(_base_class) \ { \ public: \ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY_NO_UNLINK(_class, _base_class) \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE #define NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(_class, \ _base_class) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public NS_CYCLE_COLLECTION_CLASSNAME(_base_class) \ { \ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED_BODY(_class, _base_class) \ static NS_METHOD_(void) TraceImpl(void *p, TraceCallback cb, void *closure); \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE /** * This implements a stub UnmarkIfPurple function for classes that want to be * traversed but whose AddRef/Release functions don't add/remove them to/from * the purple buffer. If you're just using NS_DECL_CYCLE_COLLECTING_ISUPPORTS * then you don't need this. */ #define NS_DECL_CYCLE_COLLECTION_UNMARK_PURPLE_STUB(_class) \ NS_IMETHODIMP_(void) UnmarkIfPurple() \ { \ } \ /** * Dummy class with a definition for CanSkip* function members, but no * implementation. * Implementation was added to please Win PGO. (See bug 765159) */ struct SkippableDummy { static NS_METHOD_(bool) CanSkipImpl(void *p, bool aRemovingAllowed) { return false; } static NS_METHOD_(bool) CanSkipInCCImpl(void *p) { return false; } static NS_METHOD_(bool) CanSkipThisImpl(void *p) { return false; } }; /** * Skippable defines a class that always has definitions for CanSkip* * function members, so that T::isSkippable ? &Skippable::CanSkip* : NULL * can compile when T::isSkippable is false and T doesn't have CanSkip* * definitions (which, as not being skippable, it's not supposed to have). */ template struct Skippable : public mozilla::Conditional::Type { }; // VTables for the cycle collector participant implementations. #define NS_IMPL_CYCLE_COLLECTION_NATIVE_VTABLE(_class) \ { \ &_class::TraverseImpl, \ &_class::RootImpl, \ &_class::UnlinkImpl, \ &_class::UnrootImpl, \ &_class::UnmarkIfPurpleImpl, \ _class::isSkippable ? &Skippable<_class>::CanSkipImpl : NULL, \ _class::isSkippable ? &Skippable<_class>::CanSkipInCCImpl : NULL, \ _class::isSkippable ? &Skippable<_class>::CanSkipThisImpl : NULL \ } #define NS_IMPL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_VTABLE(_class) \ NS_IMPL_CYCLE_COLLECTION_NATIVE_VTABLE(_class), \ { &_class::TraceImpl } #define NS_IMPL_CYCLE_COLLECTION_VTABLE(_class) \ NS_IMPL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_VTABLE(_class) // Cycle collector participant implementations. // A native class is non-nsISupports and uses nsCycleCollectingAutoRefCnt. #define NS_IMPL_CYCLE_COLLECTION_NATIVE_CLASS(_class) \ const CCParticipantVTable \ ::Type _class::NS_CYCLE_COLLECTION_INNERNAME = \ { NS_IMPL_CYCLE_COLLECTION_NATIVE_VTABLE(NS_CYCLE_COLLECTION_CLASSNAME(_class)) }; // For native classes containing JS pointers. #define NS_IMPL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(_class) \ const CCParticipantVTable \ ::Type _class::NS_CYCLE_COLLECTION_INNERNAME = \ { NS_IMPL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_VTABLE(NS_CYCLE_COLLECTION_CLASSNAME(_class)) }; // A legacy native class is non-nsISupports, but does not use // nsCycleCollectingAutoRefCnt. This should be avoided because it can // cause leaks. #define NS_IMPL_CYCLE_COLLECTION_LEGACY_NATIVE_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_NATIVE_CLASS(_class) // For nsISupports classes. #define NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ const CCParticipantVTable \ ::Type _class::NS_CYCLE_COLLECTION_INNERNAME = \ { NS_IMPL_CYCLE_COLLECTION_VTABLE(NS_CYCLE_COLLECTION_CLASSNAME(_class)) }; // Cycle collector participant declarations. #define NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS_BODY(_class) \ public: \ static NS_METHOD RootImpl(void *n); \ static NS_METHOD UnlinkImpl(void *n); \ static NS_METHOD UnrootImpl(void *n); \ static NS_METHOD TraverseImpl(NS_CYCLE_COLLECTION_CLASSNAME(_class) *that, \ void *n, nsCycleCollectionTraversalCallback &cb); #define NS_DECL_CYCLE_COLLECTION_NATIVE_UNMARK_IF_PURPLE(_class) \ static NS_METHOD_(void) UnmarkIfPurpleImpl(void *p) \ { \ _class *tmp = static_cast<_class *>(p); \ if (NS_LIKELY(tmp->mRefCnt.IsPurple())) \ tmp->mRefCnt.unmarkPurple(); \ } #define NS_DECL_CYCLE_COLLECTION_STUB_UNMARK_IF_PURPLE(_class) \ static NS_METHOD_(void) UnmarkIfPurpleImpl(void *p) {} #define NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(_class) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public nsCycleCollectionParticipant \ { \ NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS_BODY(_class) \ NS_DECL_CYCLE_COLLECTION_NATIVE_UNMARK_IF_PURPLE(_class) \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE #define NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(_class) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public nsScriptObjectTracer \ { \ NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS_BODY(_class) \ NS_DECL_CYCLE_COLLECTION_NATIVE_UNMARK_IF_PURPLE(_class) \ static NS_METHOD_(void) TraceImpl(void *p, TraceCallback cb, \ void *closure); \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE #define NS_DECL_CYCLE_COLLECTION_LEGACY_NATIVE_CLASS(_class) \ class NS_CYCLE_COLLECTION_INNERCLASS \ : public nsCycleCollectionParticipant \ { \ NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS_BODY(_class) \ NS_DECL_CYCLE_COLLECTION_STUB_UNMARK_IF_PURPLE(_class) \ }; \ NS_CYCLE_COLLECTION_PARTICIPANT_INSTANCE #define NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(_class, _root_function) \ NS_METHOD \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::RootImpl(void *p) \ { \ _class *tmp = static_cast<_class*>(p); \ tmp->_root_function(); \ return NS_OK; \ } #define NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(_class, _unroot_function) \ NS_METHOD \ NS_CYCLE_COLLECTION_CLASSNAME(_class)::UnrootImpl(void *p) \ { \ _class *tmp = static_cast<_class*>(p); \ tmp->_unroot_function(); \ return NS_OK; \ } #define NS_IMPL_CYCLE_COLLECTION_0(_class) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_0(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #define NS_IMPL_CYCLE_COLLECTION_1(_class, _f) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #define NS_IMPL_CYCLE_COLLECTION_2(_class, _f1, _f2) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #define NS_IMPL_CYCLE_COLLECTION_3(_class, _f1, _f2, _f3) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #define NS_IMPL_CYCLE_COLLECTION_4(_class, _f1, _f2, _f3, _f4) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #define NS_IMPL_CYCLE_COLLECTION_5(_class, _f1, _f2, _f3, _f4, _f5) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f5) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f5) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #define NS_IMPL_CYCLE_COLLECTION_6(_class, _f1, _f2, _f3, _f4, _f5, _f6) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f5) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f6) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f5) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f6) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #define NS_IMPL_CYCLE_COLLECTION_7(_class, _f1, _f2, _f3, _f4, _f5, _f6, _f7) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f5) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f6) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f7) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f5) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f6) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f7) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #define NS_IMPL_CYCLE_COLLECTION_8(_class, _f1, _f2, _f3, _f4, _f5, _f6, _f7, _f8) \ NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f5) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f6) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f7) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(_f8) \ NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f1) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f2) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f3) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f4) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f5) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f6) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f7) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(_f8) \ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END #endif // nsCycleCollectionParticipant_h__