mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
a5ddfe2311
The old numbered macros are still present, but simply forward to the variadic macro. They will be removed after all instances of the numbered macros have been converted.
823 lines
44 KiB
C++
823 lines
44 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsCycleCollectionParticipant_h__
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#define nsCycleCollectionParticipant_h__
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#include "mozilla/MacroArgs.h"
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#include "mozilla/MacroForEach.h"
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#include "nsCycleCollectionNoteChild.h"
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#include "js/RootingAPI.h"
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#define NS_XPCOMCYCLECOLLECTIONPARTICIPANT_IID \
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{ \
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0x9674489b, \
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0x1f6f, \
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0x4550, \
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{ 0xa7, 0x30, 0xcc, 0xae, 0xdd, 0x10, 0x4c, 0xf9 } \
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}
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/**
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* Special IID to get at the base nsISupports for a class. Usually this is the
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* canonical nsISupports pointer, but in the case of tearoffs for example it is
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* the base nsISupports pointer of the tearoff. This allow the cycle collector
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* to have separate nsCycleCollectionParticipant's for tearoffs or aggregated
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* classes.
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*/
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#define NS_CYCLECOLLECTIONISUPPORTS_IID \
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{ \
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0xc61eac14, \
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0x5f7a, \
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0x4481, \
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{ 0x96, 0x5e, 0x7e, 0xaa, 0x6e, 0xff, 0xa8, 0x5f } \
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}
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/**
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* Just holds the IID so NS_GET_IID works.
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*/
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class nsCycleCollectionISupports
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{
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_CYCLECOLLECTIONISUPPORTS_IID)
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsCycleCollectionISupports,
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NS_CYCLECOLLECTIONISUPPORTS_IID)
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namespace JS {
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template <class T> class Heap;
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} /* namespace JS */
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/*
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* A struct defining pure virtual methods which are called when tracing cycle
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* collection paticipants. The appropriate method is called depending on the
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* type of JS GC thing.
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*/
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struct TraceCallbacks
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{
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virtual void Trace(JS::Heap<JS::Value>* p, const char* name, void* closure) const = 0;
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virtual void Trace(JS::Heap<jsid>* p, const char* name, void* closure) const = 0;
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virtual void Trace(JS::Heap<JSObject*>* p, const char* name, void* closure) const = 0;
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virtual void Trace(JS::TenuredHeap<JSObject*>* p, const char* name, void* closure) const = 0;
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virtual void Trace(JS::Heap<JSString*>* p, const char* name, void* closure) const = 0;
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virtual void Trace(JS::Heap<JSScript*>* p, const char* name, void* closure) const = 0;
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virtual void Trace(JS::Heap<JSFunction*>* p, const char* name, void* closure) const = 0;
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};
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/*
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* An implementation of TraceCallbacks that calls a single function for all JS
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* GC thing types encountered.
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*/
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struct TraceCallbackFunc : public TraceCallbacks
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{
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typedef void (* Func)(void* p, const char* name, void* closure);
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explicit TraceCallbackFunc(Func cb) : mCallback(cb) {}
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virtual void Trace(JS::Heap<JS::Value>* p, const char* name, void* closure) const MOZ_OVERRIDE;
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virtual void Trace(JS::Heap<jsid>* p, const char* name, void* closure) const MOZ_OVERRIDE;
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virtual void Trace(JS::Heap<JSObject*>* p, const char* name, void* closure) const MOZ_OVERRIDE;
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virtual void Trace(JS::TenuredHeap<JSObject*>* p, const char* name, void* closure) const MOZ_OVERRIDE;
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virtual void Trace(JS::Heap<JSString*>* p, const char* name, void* closure) const MOZ_OVERRIDE;
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virtual void Trace(JS::Heap<JSScript*>* p, const char* name, void* closure) const MOZ_OVERRIDE;
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virtual void Trace(JS::Heap<JSFunction*>* p, const char* name, void* closure) const MOZ_OVERRIDE;
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private:
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Func mCallback;
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};
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/**
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* Participant implementation classes
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*/
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class NS_NO_VTABLE nsCycleCollectionParticipant
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{
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public:
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MOZ_CONSTEXPR nsCycleCollectionParticipant() : mMightSkip(false) {}
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MOZ_CONSTEXPR nsCycleCollectionParticipant(bool aSkip) : mMightSkip(aSkip) {}
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NS_IMETHOD Traverse(void *p, nsCycleCollectionTraversalCallback &cb) = 0;
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NS_IMETHOD_(void) Root(void *p) = 0;
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NS_IMETHOD_(void) Unlink(void *p) = 0;
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NS_IMETHOD_(void) Unroot(void *p) = 0;
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NS_IMETHOD_(void) Trace(void *p, const TraceCallbacks &cb, void *closure) {};
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// If CanSkip returns true, p is removed from the purple buffer during
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// a call to nsCycleCollector_forgetSkippable().
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// Note, calling CanSkip may remove objects from the purple buffer!
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// If aRemovingAllowed is true, p can be removed from the purple buffer.
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bool CanSkip(void *p, bool aRemovingAllowed)
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{
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return mMightSkip ? CanSkipReal(p, aRemovingAllowed) : false;
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}
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// If CanSkipInCC returns true, p is skipped when selecting roots for the
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// cycle collector graph.
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// Note, calling CanSkipInCC may remove other objects from the purple buffer!
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bool CanSkipInCC(void *p)
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{
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return mMightSkip ? CanSkipInCCReal(p) : false;
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}
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// If CanSkipThis returns true, p is not added to the graph.
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// This method is called during cycle collection, so don't
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// change the state of any objects!
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bool CanSkipThis(void *p)
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{
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return mMightSkip ? CanSkipThisReal(p) : false;
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}
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NS_IMETHOD_(void) DeleteCycleCollectable(void *n) = 0;
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protected:
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NS_IMETHOD_(bool) CanSkipReal(void *p, bool aRemovingAllowed)
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{
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NS_ASSERTION(false, "Forgot to implement CanSkipReal?");
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return false;
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}
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NS_IMETHOD_(bool) CanSkipInCCReal(void *p)
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{
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NS_ASSERTION(false, "Forgot to implement CanSkipInCCReal?");
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return false;
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}
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NS_IMETHOD_(bool) CanSkipThisReal(void *p)
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{
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NS_ASSERTION(false, "Forgot to implement CanSkipThisReal?");
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return false;
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}
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private:
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const bool mMightSkip;
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};
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class NS_NO_VTABLE nsScriptObjectTracer : public nsCycleCollectionParticipant
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{
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public:
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MOZ_CONSTEXPR nsScriptObjectTracer() : nsCycleCollectionParticipant(false) {}
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MOZ_CONSTEXPR nsScriptObjectTracer(bool aSkip) : nsCycleCollectionParticipant(aSkip) {}
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NS_IMETHOD_(void) Trace(void *p, const TraceCallbacks &cb, void *closure) = 0;
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static void NS_COM_GLUE NoteJSChild(void *aScriptThing, const char *name,
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void *aClosure);
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};
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class NS_NO_VTABLE nsXPCOMCycleCollectionParticipant : public nsScriptObjectTracer
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{
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public:
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MOZ_CONSTEXPR nsXPCOMCycleCollectionParticipant() : nsScriptObjectTracer(false) {}
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MOZ_CONSTEXPR nsXPCOMCycleCollectionParticipant(bool aSkip) : nsScriptObjectTracer(aSkip) {}
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_XPCOMCYCLECOLLECTIONPARTICIPANT_IID)
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NS_IMETHOD_(void) Root(void *p);
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NS_IMETHOD_(void) Unroot(void *p);
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NS_IMETHOD_(void) Trace(void *p, const TraceCallbacks &cb, void *closure);
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static bool CheckForRightISupports(nsISupports *s);
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsXPCOMCycleCollectionParticipant,
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NS_XPCOMCYCLECOLLECTIONPARTICIPANT_IID)
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///////////////////////////////////////////////////////////////////////////////
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// Helpers for implementing a QI to nsXPCOMCycleCollectionParticipant
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///////////////////////////////////////////////////////////////////////////////
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#define NS_CYCLE_COLLECTION_CLASSNAME(_class) \
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_class::NS_CYCLE_COLLECTION_INNERCLASS
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#define NS_IMPL_QUERY_CYCLE_COLLECTION(_class) \
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if ( aIID.Equals(NS_GET_IID(nsXPCOMCycleCollectionParticipant)) ) { \
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*aInstancePtr = NS_CYCLE_COLLECTION_PARTICIPANT(_class); \
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return NS_OK; \
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} else
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#define NS_IMPL_QUERY_CYCLE_COLLECTION_ISUPPORTS(_class) \
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if ( aIID.Equals(NS_GET_IID(nsCycleCollectionISupports)) ) { \
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*aInstancePtr = NS_CYCLE_COLLECTION_CLASSNAME(_class)::Upcast(this); \
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return NS_OK; \
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} else
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#define NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION(_class) \
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NS_IMPL_QUERY_CYCLE_COLLECTION(_class)
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#define NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION_ISUPPORTS(_class) \
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NS_IMPL_QUERY_CYCLE_COLLECTION_ISUPPORTS(_class)
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#define NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(_class) \
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NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION(_class) \
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NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION_ISUPPORTS(_class)
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#define NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(_class) \
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NS_INTERFACE_MAP_BEGIN(_class) \
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NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(_class)
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#define NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(_class) \
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NS_INTERFACE_MAP_BEGIN(_class) \
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NS_INTERFACE_MAP_ENTRY_CYCLE_COLLECTION(_class)
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#define NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(_class) \
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if (rv == NS_OK) return rv; \
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nsISupports* foundInterface; \
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NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(_class)
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#define NS_INTERFACE_TABLE_HEAD_CYCLE_COLLECTION_INHERITED(_class) \
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NS_IMETHODIMP _class::QueryInterface(REFNSIID aIID, void** aInstancePtr) \
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{ \
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NS_PRECONDITION(aInstancePtr, "null out param"); \
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\
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if ( aIID.Equals(NS_GET_IID(nsXPCOMCycleCollectionParticipant)) ) { \
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*aInstancePtr = NS_CYCLE_COLLECTION_PARTICIPANT(_class); \
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return NS_OK; \
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} \
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nsresult rv;
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#define NS_CYCLE_COLLECTION_UPCAST(obj, clazz) \
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NS_CYCLE_COLLECTION_CLASSNAME(clazz)::Upcast(obj)
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#ifdef DEBUG
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#define NS_CHECK_FOR_RIGHT_PARTICIPANT(_ptr) _ptr->CheckForRightParticipant()
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#else
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#define NS_CHECK_FOR_RIGHT_PARTICIPANT(_ptr)
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#endif
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// The default implementation of this class template is empty, because it
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// should never be used: see the partial specializations below.
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template <typename T,
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bool IsXPCOM = mozilla::IsBaseOf<nsISupports, T>::value>
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struct DowncastCCParticipantImpl
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{
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};
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// Specialization for XPCOM CC participants
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template <typename T>
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struct DowncastCCParticipantImpl<T, true>
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{
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static T* Run(void *p)
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{
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nsISupports *s = static_cast<nsISupports*>(p);
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MOZ_ASSERT(NS_CYCLE_COLLECTION_CLASSNAME(T)::CheckForRightISupports(s),
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"not the nsISupports pointer we expect");
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T *rval = NS_CYCLE_COLLECTION_CLASSNAME(T)::Downcast(s);
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NS_CHECK_FOR_RIGHT_PARTICIPANT(rval);
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return rval;
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}
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};
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// Specialization for native CC participants
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template <typename T>
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struct DowncastCCParticipantImpl<T, false>
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{
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static T* Run(void *p)
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{
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return static_cast<T*>(p);
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}
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};
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template <typename T>
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T* DowncastCCParticipant(void *p)
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{
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return DowncastCCParticipantImpl<T>::Run(p);
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}
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///////////////////////////////////////////////////////////////////////////////
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// Helpers for implementing CanSkip methods
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///////////////////////////////////////////////////////////////////////////////
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#define NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_BEGIN(_class) \
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NS_IMETHODIMP_(bool) \
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NS_CYCLE_COLLECTION_CLASSNAME(_class)::CanSkipReal(void *p, \
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bool aRemovingAllowed) \
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{ \
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_class *tmp = DowncastCCParticipant<_class >(p);
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#define NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_END \
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(void)tmp; \
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return false; \
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}
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#define NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_BEGIN(_class) \
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NS_IMETHODIMP_(bool) \
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NS_CYCLE_COLLECTION_CLASSNAME(_class)::CanSkipInCCReal(void *p) \
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{ \
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_class *tmp = DowncastCCParticipant<_class >(p);
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#define NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_END \
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(void)tmp; \
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return false; \
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}
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#define NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_BEGIN(_class) \
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NS_IMETHODIMP_(bool) \
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NS_CYCLE_COLLECTION_CLASSNAME(_class)::CanSkipThisReal(void *p) \
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{ \
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_class *tmp = DowncastCCParticipant<_class >(p);
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#define NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_END \
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(void)tmp; \
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return false; \
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}
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///////////////////////////////////////////////////////////////////////////////
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// Helpers for implementing nsCycleCollectionParticipant::Unlink
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//
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// You need to use NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED if you want
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// the base class Unlink version to be called before your own implementation.
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// You can use NS_IMPL_CYCLE_COLLECTION_UNLINK_END_INHERITED if you want the
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// base class Unlink to get called after your own implementation. You should
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// never use them together.
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///////////////////////////////////////////////////////////////////////////////
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#define NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
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NS_IMETHODIMP_(void) \
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NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unlink(void *p) \
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{ \
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_class *tmp = DowncastCCParticipant<_class >(p);
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#define NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(_class, _base_class) \
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
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nsISupports *s = static_cast<nsISupports*>(p); \
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NS_CYCLE_COLLECTION_CLASSNAME(_base_class)::Unlink(s);
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#define NS_IMPL_CYCLE_COLLECTION_UNLINK_HELPER(_field) \
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ImplCycleCollectionUnlink(tmp->_field);
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#define NS_IMPL_CYCLE_COLLECTION_UNLINK(...) \
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MOZ_STATIC_ASSERT_VALID_ARG_COUNT(__VA_ARGS__); \
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MOZ_FOR_EACH(NS_IMPL_CYCLE_COLLECTION_UNLINK_HELPER, (), (__VA_ARGS__))
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#define NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
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(void)tmp; \
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}
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#define NS_IMPL_CYCLE_COLLECTION_UNLINK_END_INHERITED(_base_class) \
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nsISupports *s = static_cast<nsISupports*>(p); \
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NS_CYCLE_COLLECTION_CLASSNAME(_base_class)::Unlink(s); \
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(void)tmp; \
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}
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#define NS_IMPL_CYCLE_COLLECTION_UNLINK_0(_class) \
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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///////////////////////////////////////////////////////////////////////////////
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// Helpers for implementing nsCycleCollectionParticipant::Traverse
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///////////////////////////////////////////////////////////////////////////////
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#define NS_IMPL_CYCLE_COLLECTION_DESCRIBE(_class, _refcnt) \
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cb.DescribeRefCountedNode(_refcnt, #_class);
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INTERNAL(_class) \
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NS_IMETHODIMP \
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NS_CYCLE_COLLECTION_CLASSNAME(_class)::Traverse \
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(void *p, nsCycleCollectionTraversalCallback &cb) \
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{ \
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_class *tmp = DowncastCCParticipant<_class >(p);
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INTERNAL(_class) \
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NS_IMPL_CYCLE_COLLECTION_DESCRIBE(_class, tmp->mRefCnt.get())
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// Base class' CC participant should return NS_SUCCESS_INTERRUPTED_TRAVERSE
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// from Traverse if it wants derived classes to not traverse anything from
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// their CC participant.
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(_class, _base_class) \
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INTERNAL(_class) \
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nsISupports *s = static_cast<nsISupports*>(p); \
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if (NS_CYCLE_COLLECTION_CLASSNAME(_base_class)::Traverse(s, cb) \
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== NS_SUCCESS_INTERRUPTED_TRAVERSE) { \
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return NS_SUCCESS_INTERRUPTED_TRAVERSE; \
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}
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_HELPER(_field) \
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ImplCycleCollectionTraverse(cb, tmp->_field, #_field, 0);
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE(...) \
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MOZ_STATIC_ASSERT_VALID_ARG_COUNT(__VA_ARGS__); \
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MOZ_FOR_EACH(NS_IMPL_CYCLE_COLLECTION_TRAVERSE_HELPER, (), (__VA_ARGS__))
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_RAWPTR(_field) \
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CycleCollectionNoteChild(cb, tmp->_field, #_field);
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
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{ \
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TraceCallbackFunc noteJsChild(&nsScriptObjectTracer::NoteJSChild); \
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Trace(p, noteJsChild, &cb); \
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}
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#define NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
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(void)tmp; \
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return NS_OK; \
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}
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///////////////////////////////////////////////////////////////////////////////
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// Helpers for implementing nsScriptObjectTracer::Trace
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///////////////////////////////////////////////////////////////////////////////
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#define NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(_class) \
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void \
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NS_CYCLE_COLLECTION_CLASSNAME(_class)::Trace(void *p, \
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const TraceCallbacks &aCallbacks, \
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void *aClosure) \
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{ \
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_class *tmp = DowncastCCParticipant<_class >(p);
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#define NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(_class, _base_class) \
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(_class) \
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nsISupports *s = static_cast<nsISupports*>(p); \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_base_class)::Trace(s, aCallbacks, aClosure);
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(_field) \
|
|
if (tmp->_field) \
|
|
aCallbacks.Trace(&tmp->_field, #_field, aClosure);
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_TRACE_JSVAL_MEMBER_CALLBACK(_field) \
|
|
aCallbacks.Trace(&tmp->_field, #_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
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
// If a class defines a participant, then QIing an instance of that class to
|
|
// nsXPCOMCycleCollectionParticipant should produce that participant.
|
|
#ifdef DEBUG
|
|
#define NS_CHECK_FOR_RIGHT_PARTICIPANT_IMPL(_class) \
|
|
virtual void CheckForRightParticipant() \
|
|
{ \
|
|
nsXPCOMCycleCollectionParticipant *p; \
|
|
CallQueryInterface(this, &p); \
|
|
MOZ_ASSERT(p == &NS_CYCLE_COLLECTION_INNERNAME, \
|
|
#_class " should QI to its own CC participant"); \
|
|
}
|
|
#else
|
|
#define NS_CHECK_FOR_RIGHT_PARTICIPANT_IMPL(_class)
|
|
#endif
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_CLASS_BODY_NO_UNLINK(_class, _base) \
|
|
public: \
|
|
NS_IMETHOD Traverse(void *p, nsCycleCollectionTraversalCallback &cb); \
|
|
NS_IMETHOD_(void) DeleteCycleCollectable(void *p) \
|
|
{ \
|
|
DowncastCCParticipant<_class>(p)->DeleteCycleCollectable(); \
|
|
} \
|
|
static _class* Downcast(nsISupports* s) \
|
|
{ \
|
|
return static_cast<_class*>(static_cast<_base*>(s)); \
|
|
} \
|
|
static nsISupports* Upcast(_class *p) \
|
|
{ \
|
|
return NS_ISUPPORTS_CAST(_base*, p); \
|
|
} \
|
|
template <typename T> \
|
|
friend nsISupports* \
|
|
ToSupports(T* p, NS_CYCLE_COLLECTION_INNERCLASS* dummy);
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_CLASS_BODY(_class, _base) \
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_BODY_NO_UNLINK(_class, _base) \
|
|
NS_IMETHOD_(void) Unlink(void *p);
|
|
|
|
#define NS_PARTICIPANT_AS(type, participant) \
|
|
const_cast<type*>(reinterpret_cast<const type*>(participant))
|
|
|
|
#define NS_IMPL_GET_XPCOM_CYCLE_COLLECTION_PARTICIPANT(_class) \
|
|
static MOZ_CONSTEXPR nsXPCOMCycleCollectionParticipant* GetParticipant() \
|
|
{ \
|
|
return &_class::NS_CYCLE_COLLECTION_INNERNAME; \
|
|
}
|
|
|
|
/**
|
|
* We use this macro to force that classes that inherit from a ccable class and
|
|
* declare their own participant declare themselves as inherited cc classes.
|
|
* To avoid possibly unnecessary vtables we only do this checking in debug
|
|
* builds.
|
|
*/
|
|
#ifdef DEBUG
|
|
#define NOT_INHERITED_CANT_OVERRIDE virtual void BaseCycleCollectable() MOZ_FINAL {}
|
|
#else
|
|
#define NOT_INHERITED_CANT_OVERRIDE
|
|
#endif
|
|
|
|
#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_IMPL_GET_XPCOM_CYCLE_COLLECTION_PARTICIPANT(_class) \
|
|
}; \
|
|
NS_CHECK_FOR_RIGHT_PARTICIPANT_IMPL(_class) \
|
|
static NS_CYCLE_COLLECTION_INNERCLASS NS_CYCLE_COLLECTION_INNERNAME; \
|
|
NOT_INHERITED_CANT_OVERRIDE
|
|
|
|
#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 \
|
|
{ \
|
|
public: \
|
|
MOZ_CONSTEXPR NS_CYCLE_COLLECTION_INNERCLASS () \
|
|
: nsXPCOMCycleCollectionParticipant(true) {} \
|
|
private: \
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_BODY(_class, _base) \
|
|
NS_IMETHOD_(bool) CanSkipReal(void *p, bool aRemovingAllowed); \
|
|
NS_IMETHOD_(bool) CanSkipInCCReal(void *p); \
|
|
NS_IMETHOD_(bool) CanSkipThisReal(void *p); \
|
|
NS_IMPL_GET_XPCOM_CYCLE_COLLECTION_PARTICIPANT(_class) \
|
|
}; \
|
|
NS_CHECK_FOR_RIGHT_PARTICIPANT_IMPL(_class) \
|
|
static NS_CYCLE_COLLECTION_INNERCLASS NS_CYCLE_COLLECTION_INNERNAME; \
|
|
NOT_INHERITED_CANT_OVERRIDE
|
|
|
|
#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) \
|
|
NS_IMETHOD_(void) Trace(void *p, const TraceCallbacks &cb, void *closure); \
|
|
NS_IMPL_GET_XPCOM_CYCLE_COLLECTION_PARTICIPANT(_class) \
|
|
}; \
|
|
NS_CHECK_FOR_RIGHT_PARTICIPANT_IMPL(_class) \
|
|
static NS_CYCLE_COLLECTION_INNERCLASS NS_CYCLE_COLLECTION_INNERNAME; \
|
|
NOT_INHERITED_CANT_OVERRIDE
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS_AMBIGUOUS(_class, _base) \
|
|
class NS_CYCLE_COLLECTION_INNERCLASS \
|
|
: public nsXPCOMCycleCollectionParticipant \
|
|
{ \
|
|
public: \
|
|
MOZ_CONSTEXPR NS_CYCLE_COLLECTION_INNERCLASS () \
|
|
: nsXPCOMCycleCollectionParticipant(true) {} \
|
|
private: \
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_BODY(_class, _base) \
|
|
NS_IMETHOD_(void) Trace(void *p, const TraceCallbacks &cb, void *closure); \
|
|
NS_IMETHOD_(bool) CanSkipReal(void *p, bool aRemovingAllowed); \
|
|
NS_IMETHOD_(bool) CanSkipInCCReal(void *p); \
|
|
NS_IMETHOD_(bool) CanSkipThisReal(void *p); \
|
|
NS_IMPL_GET_XPCOM_CYCLE_COLLECTION_PARTICIPANT(_class) \
|
|
}; \
|
|
NS_CHECK_FOR_RIGHT_PARTICIPANT_IMPL(_class) \
|
|
static NS_CYCLE_COLLECTION_INNERCLASS NS_CYCLE_COLLECTION_INNERNAME; \
|
|
NOT_INHERITED_CANT_OVERRIDE
|
|
|
|
#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) \
|
|
NS_IMETHOD_(void) Trace(void *p, const TraceCallbacks &cb, void *closure); \
|
|
NS_IMETHOD_(bool) CanSkipReal(void *p, bool aRemovingAllowed); \
|
|
NS_IMETHOD_(bool) CanSkipInCCReal(void *p); \
|
|
NS_IMETHOD_(bool) CanSkipThisReal(void *p); \
|
|
NS_IMPL_GET_XPCOM_CYCLE_COLLECTION_PARTICIPANT(_class) \
|
|
}; \
|
|
NS_CHECK_FOR_RIGHT_PARTICIPANT_IMPL(_class) \
|
|
static NS_CYCLE_COLLECTION_INNERCLASS NS_CYCLE_COLLECTION_INNERNAME;
|
|
|
|
#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: \
|
|
NS_IMETHOD Traverse(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) \
|
|
NS_IMETHOD_(void) Unlink(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_IMPL_GET_XPCOM_CYCLE_COLLECTION_PARTICIPANT(_class) \
|
|
}; \
|
|
NS_CHECK_FOR_RIGHT_PARTICIPANT_IMPL(_class) \
|
|
static NS_CYCLE_COLLECTION_INNERCLASS NS_CYCLE_COLLECTION_INNERNAME;
|
|
|
|
#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_IMPL_GET_XPCOM_CYCLE_COLLECTION_PARTICIPANT(_class) \
|
|
}; \
|
|
NS_CHECK_FOR_RIGHT_PARTICIPANT_IMPL(_class) \
|
|
static NS_CYCLE_COLLECTION_INNERCLASS NS_CYCLE_COLLECTION_INNERNAME;
|
|
|
|
#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) \
|
|
NS_IMETHOD_(void) Trace(void *p, const TraceCallbacks &cb, void *closure); \
|
|
NS_IMPL_GET_XPCOM_CYCLE_COLLECTION_PARTICIPANT(_class) \
|
|
}; \
|
|
NS_CHECK_FOR_RIGHT_PARTICIPANT_IMPL(_class) \
|
|
static NS_CYCLE_COLLECTION_INNERCLASS NS_CYCLE_COLLECTION_INNERNAME;
|
|
|
|
// Cycle collector participant declarations.
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS_BODY(_class) \
|
|
public: \
|
|
NS_IMETHOD_(void) Root(void *n); \
|
|
NS_IMETHOD_(void) Unlink(void *n); \
|
|
NS_IMETHOD_(void) Unroot(void *n); \
|
|
NS_IMETHOD Traverse(void *n, nsCycleCollectionTraversalCallback &cb); \
|
|
NS_IMETHOD_(void) DeleteCycleCollectable(void *n) \
|
|
{ \
|
|
DowncastCCParticipant<_class>(n)->DeleteCycleCollectable(); \
|
|
} \
|
|
static _class* Downcast(void* s) \
|
|
{ \
|
|
return DowncastCCParticipant<_class>(s); \
|
|
} \
|
|
static void* Upcast(_class *p) \
|
|
{ \
|
|
return static_cast<void*>(p); \
|
|
}
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(_class) \
|
|
void DeleteCycleCollectable(void) \
|
|
{ \
|
|
delete this; \
|
|
} \
|
|
class NS_CYCLE_COLLECTION_INNERCLASS \
|
|
: public nsCycleCollectionParticipant \
|
|
{ \
|
|
NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS_BODY(_class) \
|
|
static MOZ_CONSTEXPR nsCycleCollectionParticipant* GetParticipant() \
|
|
{ \
|
|
return &_class::NS_CYCLE_COLLECTION_INNERNAME; \
|
|
} \
|
|
}; \
|
|
static NS_CYCLE_COLLECTION_INNERCLASS NS_CYCLE_COLLECTION_INNERNAME;
|
|
|
|
#define NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(_class) \
|
|
void DeleteCycleCollectable(void) \
|
|
{ \
|
|
delete this; \
|
|
} \
|
|
class NS_CYCLE_COLLECTION_INNERCLASS \
|
|
: public nsScriptObjectTracer \
|
|
{ \
|
|
NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS_BODY(_class) \
|
|
NS_IMETHOD_(void) Trace(void *p, const TraceCallbacks &cb, void *closure); \
|
|
static MOZ_CONSTEXPR nsScriptObjectTracer* GetParticipant() \
|
|
{ \
|
|
return &_class::NS_CYCLE_COLLECTION_INNERNAME; \
|
|
} \
|
|
}; \
|
|
static NS_CYCLE_COLLECTION_INNERCLASS NS_CYCLE_COLLECTION_INNERNAME;
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(_class, _root_function) \
|
|
NS_IMETHODIMP_(void) \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class)::Root(void *p) \
|
|
{ \
|
|
_class *tmp = static_cast<_class*>(p); \
|
|
tmp->_root_function(); \
|
|
}
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(_class, _unroot_function) \
|
|
NS_IMETHODIMP_(void) \
|
|
NS_CYCLE_COLLECTION_CLASSNAME(_class)::Unroot(void *p) \
|
|
{ \
|
|
_class *tmp = static_cast<_class*>(p); \
|
|
tmp->_unroot_function(); \
|
|
}
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
|
|
_class::NS_CYCLE_COLLECTION_INNERCLASS _class::NS_CYCLE_COLLECTION_INNERNAME;
|
|
|
|
// NB: This is not something you usually want to use. It is here to allow
|
|
// adding things to the CC graph to help debugging via CC logs, but it does not
|
|
// traverse or unlink anything, so it is useless for anything else.
|
|
#define NS_IMPL_CYCLE_COLLECTION_0(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION(_class, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(__VA_ARGS__) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(__VA_ARGS__) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
// TODO: Remove these after changing everything to the variadic variant.
|
|
#define NS_IMPL_CYCLE_COLLECTION_1(_class, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION(_class, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_2(_class, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION(_class, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_3(_class, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION(_class, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_4(_class, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION(_class, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_5(_class, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION(_class, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_6(_class, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION(_class, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_7(_class, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION(_class, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_8(_class, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION(_class, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_9(_class, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION(_class, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_10(_class, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION(_class, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_16(_class, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION(_class, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_17(_class, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION(_class, __VA_ARGS__)
|
|
|
|
#define NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(_class, _base) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(__VA_ARGS__) \
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(_class, _base) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(__VA_ARGS__) \
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
// TODO: Remove these after changing everything to the variadic variant.
|
|
#define NS_IMPL_CYCLE_COLLECTION_INHERITED_1(_class, _base, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_INHERITED_2(_class, _base, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_INHERITED_3(_class, _base, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_INHERITED_4(_class, _base, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_INHERITED_5(_class, _base, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_INHERITED_6(_class, _base, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_INHERITED_7(_class, _base, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_INHERITED_8(_class, _base, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_INHERITED_9(_class, _base, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_INHERITED_10(_class, _base, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_INHERITED_11(_class, _base, ...) \
|
|
NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
|
|
#define NS_IMPL_CYCLE_COLLECTION_INHERITED_12(_class, _base, ...) \
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NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
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#define NS_IMPL_CYCLE_COLLECTION_INHERITED_13(_class, _base, ...) \
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NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
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#define NS_IMPL_CYCLE_COLLECTION_INHERITED_14(_class, _base, ...) \
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NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
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#define NS_IMPL_CYCLE_COLLECTION_INHERITED_15(_class, _base, ...) \
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NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
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#define NS_IMPL_CYCLE_COLLECTION_INHERITED_16(_class, _base, ...) \
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NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
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#define NS_IMPL_CYCLE_COLLECTION_INHERITED_17(_class, _base, ...) \
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NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
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#define NS_IMPL_CYCLE_COLLECTION_INHERITED_18(_class, _base, ...) \
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NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
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#define NS_IMPL_CYCLE_COLLECTION_INHERITED_19(_class, _base, ...) \
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NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
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#define NS_IMPL_CYCLE_COLLECTION_INHERITED_20(_class, _base, ...) \
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NS_IMPL_CYCLE_COLLECTION_INHERITED(_class, _base, __VA_ARGS__)
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#define NS_CYCLE_COLLECTION_NOTE_EDGE_NAME CycleCollectionNoteEdgeName
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#endif // nsCycleCollectionParticipant_h__
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