diff -r 000000000000 -r 6474c204b198 dom/base/nsWrapperCache.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dom/base/nsWrapperCache.h Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,737 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* 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 nsWrapperCache_h___ +#define nsWrapperCache_h___ + +#include "nsCycleCollectionParticipant.h" +#include "mozilla/Assertions.h" +#include "js/Id.h" // must come before js/RootingAPI.h +#include "js/Value.h" // must come before js/RootingAPI.h +#include "js/RootingAPI.h" +#include "js/TracingAPI.h" + +class XPCWrappedNativeScope; + +#define NS_WRAPPERCACHE_IID \ +{ 0x6f3179a1, 0x36f7, 0x4a5c, \ + { 0x8c, 0xf1, 0xad, 0xc8, 0x7c, 0xde, 0x3e, 0x87 } } + +/** + * Class to store the wrapper for an object. This can only be used with objects + * that only have one non-security wrapper at a time (for an XPCWrappedNative + * this is usually ensured by setting an explicit parent in the PreCreate hook + * for the class). + * + * An instance of nsWrapperCache can be gotten from an object that implements + * a wrapper cache by calling QueryInterface on it. Note that this breaks XPCOM + * rules a bit (this object doesn't derive from nsISupports). + * + * The cache can store objects other than wrappers. We allow wrappers to use a + * separate JSObject to store their state (mostly expandos). If the wrapper is + * collected and we want to preserve this state we actually store the state + * object in the cache. + * + * The cache can store 2 types of objects: + * + * If WRAPPER_IS_DOM_BINDING is not set (IsDOMBinding() returns false): + * - a slim wrapper or the JSObject of an XPCWrappedNative wrapper + * + * If WRAPPER_IS_DOM_BINDING is set (IsDOMBinding() returns true): + * - a DOM binding object (regular JS object or proxy) + * + * The finalizer for the wrapper clears the cache. + * + * A number of the methods are implemented in nsWrapperCacheInlines.h because we + * have to include some JS headers that don't play nicely with the rest of the + * codebase. Include nsWrapperCacheInlines.h if you need to call those methods. + */ +class nsWrapperCache +{ +public: + NS_DECLARE_STATIC_IID_ACCESSOR(NS_WRAPPERCACHE_IID) + + nsWrapperCache() : mWrapper(nullptr), mFlags(0) + { + } + ~nsWrapperCache() + { + MOZ_ASSERT(!PreservingWrapper(), + "Destroying cache with a preserved wrapper!"); + } + + /** + * Get the cached wrapper. + * + * This getter clears the gray bit before handing out the JSObject which means + * that the object is guaranteed to be kept alive past the next CC. + */ + JSObject* GetWrapper() const; + + /** + * Get the cached wrapper. + * + * This getter does not change the color of the JSObject meaning that the + * object returned is not guaranteed to be kept alive past the next CC. + * + * This should only be called if you are certain that the return value won't + * be passed into a JS API function and that it won't be stored without being + * rooted (or otherwise signaling the stored value to the CC). + */ + JSObject* GetWrapperPreserveColor() const + { + return GetWrapperJSObject(); + } + + void SetWrapper(JSObject* aWrapper) + { + MOZ_ASSERT(!PreservingWrapper(), "Clearing a preserved wrapper!"); + MOZ_ASSERT(aWrapper, "Use ClearWrapper!"); + + SetWrapperJSObject(aWrapper); + } + + /** + * Clear the wrapper. This should be called from the finalizer for the + * wrapper. + */ + void ClearWrapper() + { + MOZ_ASSERT(!PreservingWrapper(), "Clearing a preserved wrapper!"); + + SetWrapperJSObject(nullptr); + } + + bool PreservingWrapper() + { + return HasWrapperFlag(WRAPPER_BIT_PRESERVED); + } + + void SetIsDOMBinding() + { + MOZ_ASSERT(!mWrapper && !(GetWrapperFlags() & ~WRAPPER_IS_DOM_BINDING), + "This flag should be set before creating any wrappers."); + SetWrapperFlags(WRAPPER_IS_DOM_BINDING); + } + + bool IsDOMBinding() const + { + return HasWrapperFlag(WRAPPER_IS_DOM_BINDING); + } + + /** + * Wrap the object corresponding to this wrapper cache. If non-null is + * returned, the object has already been stored in the wrapper cache. + */ + virtual JSObject* WrapObject(JSContext* cx) + { + MOZ_ASSERT(!IsDOMBinding(), "Someone forgot to override WrapObject"); + return nullptr; + } + + /** + * Returns true if the object has a non-gray wrapper. + */ + bool IsBlack(); + + /** + * Returns true if the object has a black wrapper, + * and all the GC things it is keeping alive are black too. + */ + bool IsBlackAndDoesNotNeedTracing(nsISupports* aThis); + + bool HasNothingToTrace(nsISupports* aThis); + + // Only meant to be called by code that preserves a wrapper. + void SetPreservingWrapper(bool aPreserve) + { + if(aPreserve) { + SetWrapperFlags(WRAPPER_BIT_PRESERVED); + } + else { + UnsetWrapperFlags(WRAPPER_BIT_PRESERVED); + } + } + + void TraceWrapper(const TraceCallbacks& aCallbacks, void* aClosure) + { + if (PreservingWrapper() && mWrapper) { + aCallbacks.Trace(&mWrapper, "Preserved wrapper", aClosure); + } + } + + /* + * The following methods for getting and manipulating flags allow the unused + * bits of mFlags to be used by derived classes. + */ + + uint32_t GetFlags() const + { + return mFlags & ~kWrapperFlagsMask; + } + + bool HasFlag(uint32_t aFlag) const + { + MOZ_ASSERT((aFlag & kWrapperFlagsMask) == 0, "Bad flag mask"); + return !!(mFlags & aFlag); + } + + void SetFlags(uint32_t aFlagsToSet) + { + MOZ_ASSERT((aFlagsToSet & kWrapperFlagsMask) == 0, "Bad flag mask"); + mFlags |= aFlagsToSet; + } + + void UnsetFlags(uint32_t aFlagsToUnset) + { + MOZ_ASSERT((aFlagsToUnset & kWrapperFlagsMask) == 0, "Bad flag mask"); + mFlags &= ~aFlagsToUnset; + } + + void PreserveWrapper(nsISupports* aScriptObjectHolder) + { + if (PreservingWrapper()) { + return; + } + + nsISupports* ccISupports; + aScriptObjectHolder->QueryInterface(NS_GET_IID(nsCycleCollectionISupports), + reinterpret_cast(&ccISupports)); + MOZ_ASSERT(ccISupports); + + nsXPCOMCycleCollectionParticipant* participant; + CallQueryInterface(ccISupports, &participant); + PreserveWrapper(ccISupports, participant); + } + + void PreserveWrapper(void* aScriptObjectHolder, nsScriptObjectTracer* aTracer) + { + if (PreservingWrapper()) { + return; + } + + HoldJSObjects(aScriptObjectHolder, aTracer); + SetPreservingWrapper(true); +#ifdef DEBUG + // Make sure the cycle collector will be able to traverse to the wrapper. + CheckCCWrapperTraversal(aScriptObjectHolder, aTracer); +#endif + } + + void ReleaseWrapper(void* aScriptObjectHolder); + +protected: + void TraceWrapper(JSTracer* aTrc, const char* name) + { + if (mWrapper) { + JS_CallHeapObjectTracer(aTrc, &mWrapper, name); + } + } + + void PoisonWrapper() + { + if (mWrapper) { + mWrapper.setToCrashOnTouch(); + } + } + +private: + JSObject *GetWrapperJSObject() const + { + return mWrapper; + } + + void SetWrapperJSObject(JSObject* aWrapper) + { + mWrapper = aWrapper; + UnsetWrapperFlags(kWrapperFlagsMask & ~WRAPPER_IS_DOM_BINDING); + } + + void TraceWrapperJSObject(JSTracer* aTrc, const char* aName); + + uint32_t GetWrapperFlags() const + { + return mFlags & kWrapperFlagsMask; + } + + bool HasWrapperFlag(uint32_t aFlag) const + { + MOZ_ASSERT((aFlag & ~kWrapperFlagsMask) == 0, "Bad wrapper flag bits"); + return !!(mFlags & aFlag); + } + + void SetWrapperFlags(uint32_t aFlagsToSet) + { + MOZ_ASSERT((aFlagsToSet & ~kWrapperFlagsMask) == 0, "Bad wrapper flag bits"); + mFlags |= aFlagsToSet; + } + + void UnsetWrapperFlags(uint32_t aFlagsToUnset) + { + MOZ_ASSERT((aFlagsToUnset & ~kWrapperFlagsMask) == 0, "Bad wrapper flag bits"); + mFlags &= ~aFlagsToUnset; + } + + static void HoldJSObjects(void* aScriptObjectHolder, + nsScriptObjectTracer* aTracer); + +#ifdef DEBUG + void CheckCCWrapperTraversal(void* aScriptObjectHolder, + nsScriptObjectTracer* aTracer); +#endif // DEBUG + + /** + * If this bit is set then we're preserving the wrapper, which in effect ties + * the lifetime of the JS object stored in the cache to the lifetime of the + * native object. We rely on the cycle collector to break the cycle that this + * causes between the native object and the JS object, so it is important that + * any native object that supports preserving of its wrapper + * traces/traverses/unlinks the cached JS object (see + * NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER, + * NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS and + * NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER). + */ + enum { WRAPPER_BIT_PRESERVED = 1 << 0 }; + + /** + * If this bit is set then the wrapper for the native object is a DOM binding + * (regular JS object or proxy). + */ + enum { WRAPPER_IS_DOM_BINDING = 1 << 1 }; + + enum { kWrapperFlagsMask = (WRAPPER_BIT_PRESERVED | WRAPPER_IS_DOM_BINDING) }; + + JS::Heap mWrapper; + uint32_t mFlags; +}; + +enum { WRAPPER_CACHE_FLAGS_BITS_USED = 2 }; + +NS_DEFINE_STATIC_IID_ACCESSOR(nsWrapperCache, NS_WRAPPERCACHE_IID) + +#define NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY \ + if ( aIID.Equals(NS_GET_IID(nsWrapperCache)) ) { \ + *aInstancePtr = static_cast(this); \ + return NS_OK; \ + } + + +// Cycle collector macros for wrapper caches. + +#define NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER \ + tmp->TraceWrapper(aCallbacks, aClosure); + +#define NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \ + tmp->ReleaseWrapper(p); + +#define NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class) \ + NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER \ + NS_IMPL_CYCLE_COLLECTION_TRACE_END + +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(_class) \ + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \ + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class) + +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_1(_class, _field) \ + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \ + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class) + +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_2(_class, _field1,\ + _field2) \ + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \ + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class) + +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_3(_class, _field1,\ + _field2, \ + _field3) \ + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \ + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class) + +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_4(_class, _field1,\ + _field2, \ + _field3, \ + _field4) \ + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \ + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class) + +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_5(_class, _field1,\ + _field2, \ + _field3, \ + _field4, \ + _field5) \ + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \ + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class) + +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_6(_class, _field1,\ + _field2, \ + _field3, \ + _field4, \ + _field5, \ + _field6) \ + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field6) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field6) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \ + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class) + +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_7(_class, _field1,\ + _field2, \ + _field3, \ + _field4, \ + _field5, \ + _field6, \ + _field7) \ + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field6) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field7) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field6) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field7) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \ + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class) + +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_8(_class, _field1,\ + _field2, \ + _field3, \ + _field4, \ + _field5, \ + _field6, \ + _field7, \ + _field8) \ + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field6) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field7) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field8) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field6) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field7) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field8) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \ + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class) + +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_9(_class, _field1,\ + _field2, \ + _field3, \ + _field4, \ + _field5, \ + _field6, \ + _field7, \ + _field8, \ + _field9) \ + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field6) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field7) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field8) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field9) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field6) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field7) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field8) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field9) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \ + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class) + +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_10(_class, _field1,\ + _field2, \ + _field3, \ + _field4, \ + _field5, \ + _field6, \ + _field7, \ + _field8, \ + _field9, \ + _field10) \ + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field6) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field7) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field8) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field9) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field10) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field6) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field7) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field8) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field9) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field10) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \ + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class) + +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_11(_class, \ + _field1, \ + _field2, \ + _field3, \ + _field4, \ + _field5, \ + _field6, \ + _field7, \ + _field8, \ + _field9, \ + _field10, \ + _field11) \ + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field6) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field7) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field8) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field9) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field10) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field11) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field6) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field7) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field8) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field9) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field10) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field11) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \ + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class) + +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_12(_class, \ + _field1, \ + _field2, \ + _field3, \ + _field4, \ + _field5, \ + _field6, \ + _field7, \ + _field8, \ + _field9, \ + _field10, \ + _field11, \ + _field12) \ + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field6) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field7) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field8) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field9) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field10) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field11) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field12) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field6) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field7) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field8) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field9) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field10) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field11) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field12) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \ + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class) + +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_13(_class, \ + _field1, \ + _field2, \ + _field3, \ + _field4, \ + _field5, \ + _field6, \ + _field7, \ + _field8, \ + _field9, \ + _field10, \ + _field11, \ + _field12, \ + _field13) \ + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field6) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field7) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field8) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field9) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field10) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field11) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field12) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field13) \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \ + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field6) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field7) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field8) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field9) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field10) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field11) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field12) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field13) \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \ + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \ + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class) + +#endif /* nsWrapperCache_h___ */