1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/base/nsWrapperCache.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,737 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef nsWrapperCache_h___
1.10 +#define nsWrapperCache_h___
1.11 +
1.12 +#include "nsCycleCollectionParticipant.h"
1.13 +#include "mozilla/Assertions.h"
1.14 +#include "js/Id.h" // must come before js/RootingAPI.h
1.15 +#include "js/Value.h" // must come before js/RootingAPI.h
1.16 +#include "js/RootingAPI.h"
1.17 +#include "js/TracingAPI.h"
1.18 +
1.19 +class XPCWrappedNativeScope;
1.20 +
1.21 +#define NS_WRAPPERCACHE_IID \
1.22 +{ 0x6f3179a1, 0x36f7, 0x4a5c, \
1.23 + { 0x8c, 0xf1, 0xad, 0xc8, 0x7c, 0xde, 0x3e, 0x87 } }
1.24 +
1.25 +/**
1.26 + * Class to store the wrapper for an object. This can only be used with objects
1.27 + * that only have one non-security wrapper at a time (for an XPCWrappedNative
1.28 + * this is usually ensured by setting an explicit parent in the PreCreate hook
1.29 + * for the class).
1.30 + *
1.31 + * An instance of nsWrapperCache can be gotten from an object that implements
1.32 + * a wrapper cache by calling QueryInterface on it. Note that this breaks XPCOM
1.33 + * rules a bit (this object doesn't derive from nsISupports).
1.34 + *
1.35 + * The cache can store objects other than wrappers. We allow wrappers to use a
1.36 + * separate JSObject to store their state (mostly expandos). If the wrapper is
1.37 + * collected and we want to preserve this state we actually store the state
1.38 + * object in the cache.
1.39 + *
1.40 + * The cache can store 2 types of objects:
1.41 + *
1.42 + * If WRAPPER_IS_DOM_BINDING is not set (IsDOMBinding() returns false):
1.43 + * - a slim wrapper or the JSObject of an XPCWrappedNative wrapper
1.44 + *
1.45 + * If WRAPPER_IS_DOM_BINDING is set (IsDOMBinding() returns true):
1.46 + * - a DOM binding object (regular JS object or proxy)
1.47 + *
1.48 + * The finalizer for the wrapper clears the cache.
1.49 + *
1.50 + * A number of the methods are implemented in nsWrapperCacheInlines.h because we
1.51 + * have to include some JS headers that don't play nicely with the rest of the
1.52 + * codebase. Include nsWrapperCacheInlines.h if you need to call those methods.
1.53 + */
1.54 +class nsWrapperCache
1.55 +{
1.56 +public:
1.57 + NS_DECLARE_STATIC_IID_ACCESSOR(NS_WRAPPERCACHE_IID)
1.58 +
1.59 + nsWrapperCache() : mWrapper(nullptr), mFlags(0)
1.60 + {
1.61 + }
1.62 + ~nsWrapperCache()
1.63 + {
1.64 + MOZ_ASSERT(!PreservingWrapper(),
1.65 + "Destroying cache with a preserved wrapper!");
1.66 + }
1.67 +
1.68 + /**
1.69 + * Get the cached wrapper.
1.70 + *
1.71 + * This getter clears the gray bit before handing out the JSObject which means
1.72 + * that the object is guaranteed to be kept alive past the next CC.
1.73 + */
1.74 + JSObject* GetWrapper() const;
1.75 +
1.76 + /**
1.77 + * Get the cached wrapper.
1.78 + *
1.79 + * This getter does not change the color of the JSObject meaning that the
1.80 + * object returned is not guaranteed to be kept alive past the next CC.
1.81 + *
1.82 + * This should only be called if you are certain that the return value won't
1.83 + * be passed into a JS API function and that it won't be stored without being
1.84 + * rooted (or otherwise signaling the stored value to the CC).
1.85 + */
1.86 + JSObject* GetWrapperPreserveColor() const
1.87 + {
1.88 + return GetWrapperJSObject();
1.89 + }
1.90 +
1.91 + void SetWrapper(JSObject* aWrapper)
1.92 + {
1.93 + MOZ_ASSERT(!PreservingWrapper(), "Clearing a preserved wrapper!");
1.94 + MOZ_ASSERT(aWrapper, "Use ClearWrapper!");
1.95 +
1.96 + SetWrapperJSObject(aWrapper);
1.97 + }
1.98 +
1.99 + /**
1.100 + * Clear the wrapper. This should be called from the finalizer for the
1.101 + * wrapper.
1.102 + */
1.103 + void ClearWrapper()
1.104 + {
1.105 + MOZ_ASSERT(!PreservingWrapper(), "Clearing a preserved wrapper!");
1.106 +
1.107 + SetWrapperJSObject(nullptr);
1.108 + }
1.109 +
1.110 + bool PreservingWrapper()
1.111 + {
1.112 + return HasWrapperFlag(WRAPPER_BIT_PRESERVED);
1.113 + }
1.114 +
1.115 + void SetIsDOMBinding()
1.116 + {
1.117 + MOZ_ASSERT(!mWrapper && !(GetWrapperFlags() & ~WRAPPER_IS_DOM_BINDING),
1.118 + "This flag should be set before creating any wrappers.");
1.119 + SetWrapperFlags(WRAPPER_IS_DOM_BINDING);
1.120 + }
1.121 +
1.122 + bool IsDOMBinding() const
1.123 + {
1.124 + return HasWrapperFlag(WRAPPER_IS_DOM_BINDING);
1.125 + }
1.126 +
1.127 + /**
1.128 + * Wrap the object corresponding to this wrapper cache. If non-null is
1.129 + * returned, the object has already been stored in the wrapper cache.
1.130 + */
1.131 + virtual JSObject* WrapObject(JSContext* cx)
1.132 + {
1.133 + MOZ_ASSERT(!IsDOMBinding(), "Someone forgot to override WrapObject");
1.134 + return nullptr;
1.135 + }
1.136 +
1.137 + /**
1.138 + * Returns true if the object has a non-gray wrapper.
1.139 + */
1.140 + bool IsBlack();
1.141 +
1.142 + /**
1.143 + * Returns true if the object has a black wrapper,
1.144 + * and all the GC things it is keeping alive are black too.
1.145 + */
1.146 + bool IsBlackAndDoesNotNeedTracing(nsISupports* aThis);
1.147 +
1.148 + bool HasNothingToTrace(nsISupports* aThis);
1.149 +
1.150 + // Only meant to be called by code that preserves a wrapper.
1.151 + void SetPreservingWrapper(bool aPreserve)
1.152 + {
1.153 + if(aPreserve) {
1.154 + SetWrapperFlags(WRAPPER_BIT_PRESERVED);
1.155 + }
1.156 + else {
1.157 + UnsetWrapperFlags(WRAPPER_BIT_PRESERVED);
1.158 + }
1.159 + }
1.160 +
1.161 + void TraceWrapper(const TraceCallbacks& aCallbacks, void* aClosure)
1.162 + {
1.163 + if (PreservingWrapper() && mWrapper) {
1.164 + aCallbacks.Trace(&mWrapper, "Preserved wrapper", aClosure);
1.165 + }
1.166 + }
1.167 +
1.168 + /*
1.169 + * The following methods for getting and manipulating flags allow the unused
1.170 + * bits of mFlags to be used by derived classes.
1.171 + */
1.172 +
1.173 + uint32_t GetFlags() const
1.174 + {
1.175 + return mFlags & ~kWrapperFlagsMask;
1.176 + }
1.177 +
1.178 + bool HasFlag(uint32_t aFlag) const
1.179 + {
1.180 + MOZ_ASSERT((aFlag & kWrapperFlagsMask) == 0, "Bad flag mask");
1.181 + return !!(mFlags & aFlag);
1.182 + }
1.183 +
1.184 + void SetFlags(uint32_t aFlagsToSet)
1.185 + {
1.186 + MOZ_ASSERT((aFlagsToSet & kWrapperFlagsMask) == 0, "Bad flag mask");
1.187 + mFlags |= aFlagsToSet;
1.188 + }
1.189 +
1.190 + void UnsetFlags(uint32_t aFlagsToUnset)
1.191 + {
1.192 + MOZ_ASSERT((aFlagsToUnset & kWrapperFlagsMask) == 0, "Bad flag mask");
1.193 + mFlags &= ~aFlagsToUnset;
1.194 + }
1.195 +
1.196 + void PreserveWrapper(nsISupports* aScriptObjectHolder)
1.197 + {
1.198 + if (PreservingWrapper()) {
1.199 + return;
1.200 + }
1.201 +
1.202 + nsISupports* ccISupports;
1.203 + aScriptObjectHolder->QueryInterface(NS_GET_IID(nsCycleCollectionISupports),
1.204 + reinterpret_cast<void**>(&ccISupports));
1.205 + MOZ_ASSERT(ccISupports);
1.206 +
1.207 + nsXPCOMCycleCollectionParticipant* participant;
1.208 + CallQueryInterface(ccISupports, &participant);
1.209 + PreserveWrapper(ccISupports, participant);
1.210 + }
1.211 +
1.212 + void PreserveWrapper(void* aScriptObjectHolder, nsScriptObjectTracer* aTracer)
1.213 + {
1.214 + if (PreservingWrapper()) {
1.215 + return;
1.216 + }
1.217 +
1.218 + HoldJSObjects(aScriptObjectHolder, aTracer);
1.219 + SetPreservingWrapper(true);
1.220 +#ifdef DEBUG
1.221 + // Make sure the cycle collector will be able to traverse to the wrapper.
1.222 + CheckCCWrapperTraversal(aScriptObjectHolder, aTracer);
1.223 +#endif
1.224 + }
1.225 +
1.226 + void ReleaseWrapper(void* aScriptObjectHolder);
1.227 +
1.228 +protected:
1.229 + void TraceWrapper(JSTracer* aTrc, const char* name)
1.230 + {
1.231 + if (mWrapper) {
1.232 + JS_CallHeapObjectTracer(aTrc, &mWrapper, name);
1.233 + }
1.234 + }
1.235 +
1.236 + void PoisonWrapper()
1.237 + {
1.238 + if (mWrapper) {
1.239 + mWrapper.setToCrashOnTouch();
1.240 + }
1.241 + }
1.242 +
1.243 +private:
1.244 + JSObject *GetWrapperJSObject() const
1.245 + {
1.246 + return mWrapper;
1.247 + }
1.248 +
1.249 + void SetWrapperJSObject(JSObject* aWrapper)
1.250 + {
1.251 + mWrapper = aWrapper;
1.252 + UnsetWrapperFlags(kWrapperFlagsMask & ~WRAPPER_IS_DOM_BINDING);
1.253 + }
1.254 +
1.255 + void TraceWrapperJSObject(JSTracer* aTrc, const char* aName);
1.256 +
1.257 + uint32_t GetWrapperFlags() const
1.258 + {
1.259 + return mFlags & kWrapperFlagsMask;
1.260 + }
1.261 +
1.262 + bool HasWrapperFlag(uint32_t aFlag) const
1.263 + {
1.264 + MOZ_ASSERT((aFlag & ~kWrapperFlagsMask) == 0, "Bad wrapper flag bits");
1.265 + return !!(mFlags & aFlag);
1.266 + }
1.267 +
1.268 + void SetWrapperFlags(uint32_t aFlagsToSet)
1.269 + {
1.270 + MOZ_ASSERT((aFlagsToSet & ~kWrapperFlagsMask) == 0, "Bad wrapper flag bits");
1.271 + mFlags |= aFlagsToSet;
1.272 + }
1.273 +
1.274 + void UnsetWrapperFlags(uint32_t aFlagsToUnset)
1.275 + {
1.276 + MOZ_ASSERT((aFlagsToUnset & ~kWrapperFlagsMask) == 0, "Bad wrapper flag bits");
1.277 + mFlags &= ~aFlagsToUnset;
1.278 + }
1.279 +
1.280 + static void HoldJSObjects(void* aScriptObjectHolder,
1.281 + nsScriptObjectTracer* aTracer);
1.282 +
1.283 +#ifdef DEBUG
1.284 + void CheckCCWrapperTraversal(void* aScriptObjectHolder,
1.285 + nsScriptObjectTracer* aTracer);
1.286 +#endif // DEBUG
1.287 +
1.288 + /**
1.289 + * If this bit is set then we're preserving the wrapper, which in effect ties
1.290 + * the lifetime of the JS object stored in the cache to the lifetime of the
1.291 + * native object. We rely on the cycle collector to break the cycle that this
1.292 + * causes between the native object and the JS object, so it is important that
1.293 + * any native object that supports preserving of its wrapper
1.294 + * traces/traverses/unlinks the cached JS object (see
1.295 + * NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER,
1.296 + * NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS and
1.297 + * NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER).
1.298 + */
1.299 + enum { WRAPPER_BIT_PRESERVED = 1 << 0 };
1.300 +
1.301 + /**
1.302 + * If this bit is set then the wrapper for the native object is a DOM binding
1.303 + * (regular JS object or proxy).
1.304 + */
1.305 + enum { WRAPPER_IS_DOM_BINDING = 1 << 1 };
1.306 +
1.307 + enum { kWrapperFlagsMask = (WRAPPER_BIT_PRESERVED | WRAPPER_IS_DOM_BINDING) };
1.308 +
1.309 + JS::Heap<JSObject*> mWrapper;
1.310 + uint32_t mFlags;
1.311 +};
1.312 +
1.313 +enum { WRAPPER_CACHE_FLAGS_BITS_USED = 2 };
1.314 +
1.315 +NS_DEFINE_STATIC_IID_ACCESSOR(nsWrapperCache, NS_WRAPPERCACHE_IID)
1.316 +
1.317 +#define NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY \
1.318 + if ( aIID.Equals(NS_GET_IID(nsWrapperCache)) ) { \
1.319 + *aInstancePtr = static_cast<nsWrapperCache*>(this); \
1.320 + return NS_OK; \
1.321 + }
1.322 +
1.323 +
1.324 +// Cycle collector macros for wrapper caches.
1.325 +
1.326 +#define NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER \
1.327 + tmp->TraceWrapper(aCallbacks, aClosure);
1.328 +
1.329 +#define NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \
1.330 + tmp->ReleaseWrapper(p);
1.331 +
1.332 +#define NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class) \
1.333 + NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(_class) \
1.334 + NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER \
1.335 + NS_IMPL_CYCLE_COLLECTION_TRACE_END
1.336 +
1.337 +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(_class) \
1.338 + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
1.339 + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
1.340 + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \
1.341 + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
1.342 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
1.343 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
1.344 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
1.345 + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class)
1.346 +
1.347 +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_1(_class, _field) \
1.348 + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
1.349 + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
1.350 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field) \
1.351 + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \
1.352 + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
1.353 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
1.354 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field) \
1.355 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
1.356 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
1.357 + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class)
1.358 +
1.359 +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_2(_class, _field1,\
1.360 + _field2) \
1.361 + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
1.362 + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
1.363 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \
1.364 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \
1.365 + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \
1.366 + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
1.367 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
1.368 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \
1.369 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \
1.370 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
1.371 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
1.372 + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class)
1.373 +
1.374 +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_3(_class, _field1,\
1.375 + _field2, \
1.376 + _field3) \
1.377 + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
1.378 + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
1.379 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \
1.380 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \
1.381 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \
1.382 + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \
1.383 + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
1.384 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
1.385 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \
1.386 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \
1.387 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \
1.388 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
1.389 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
1.390 + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class)
1.391 +
1.392 +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_4(_class, _field1,\
1.393 + _field2, \
1.394 + _field3, \
1.395 + _field4) \
1.396 + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
1.397 + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
1.398 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \
1.399 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \
1.400 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \
1.401 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \
1.402 + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \
1.403 + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
1.404 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
1.405 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \
1.406 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \
1.407 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \
1.408 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \
1.409 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
1.410 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
1.411 + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class)
1.412 +
1.413 +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_5(_class, _field1,\
1.414 + _field2, \
1.415 + _field3, \
1.416 + _field4, \
1.417 + _field5) \
1.418 + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
1.419 + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
1.420 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \
1.421 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \
1.422 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \
1.423 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \
1.424 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \
1.425 + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \
1.426 + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
1.427 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
1.428 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \
1.429 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \
1.430 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \
1.431 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \
1.432 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \
1.433 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
1.434 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
1.435 + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class)
1.436 +
1.437 +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_6(_class, _field1,\
1.438 + _field2, \
1.439 + _field3, \
1.440 + _field4, \
1.441 + _field5, \
1.442 + _field6) \
1.443 + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
1.444 + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
1.445 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \
1.446 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \
1.447 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \
1.448 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \
1.449 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \
1.450 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field6) \
1.451 + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \
1.452 + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
1.453 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
1.454 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \
1.455 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \
1.456 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \
1.457 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \
1.458 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \
1.459 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field6) \
1.460 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
1.461 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
1.462 + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class)
1.463 +
1.464 +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_7(_class, _field1,\
1.465 + _field2, \
1.466 + _field3, \
1.467 + _field4, \
1.468 + _field5, \
1.469 + _field6, \
1.470 + _field7) \
1.471 + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
1.472 + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
1.473 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \
1.474 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \
1.475 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \
1.476 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \
1.477 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \
1.478 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field6) \
1.479 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field7) \
1.480 + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \
1.481 + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
1.482 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
1.483 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \
1.484 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \
1.485 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \
1.486 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \
1.487 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \
1.488 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field6) \
1.489 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field7) \
1.490 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
1.491 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
1.492 + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class)
1.493 +
1.494 +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_8(_class, _field1,\
1.495 + _field2, \
1.496 + _field3, \
1.497 + _field4, \
1.498 + _field5, \
1.499 + _field6, \
1.500 + _field7, \
1.501 + _field8) \
1.502 + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
1.503 + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
1.504 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \
1.505 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \
1.506 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \
1.507 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \
1.508 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \
1.509 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field6) \
1.510 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field7) \
1.511 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field8) \
1.512 + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \
1.513 + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
1.514 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
1.515 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \
1.516 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \
1.517 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \
1.518 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \
1.519 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \
1.520 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field6) \
1.521 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field7) \
1.522 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field8) \
1.523 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
1.524 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
1.525 + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class)
1.526 +
1.527 +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_9(_class, _field1,\
1.528 + _field2, \
1.529 + _field3, \
1.530 + _field4, \
1.531 + _field5, \
1.532 + _field6, \
1.533 + _field7, \
1.534 + _field8, \
1.535 + _field9) \
1.536 + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
1.537 + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
1.538 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \
1.539 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \
1.540 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \
1.541 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \
1.542 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \
1.543 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field6) \
1.544 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field7) \
1.545 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field8) \
1.546 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field9) \
1.547 + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \
1.548 + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
1.549 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
1.550 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \
1.551 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \
1.552 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \
1.553 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \
1.554 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \
1.555 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field6) \
1.556 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field7) \
1.557 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field8) \
1.558 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field9) \
1.559 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
1.560 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
1.561 + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class)
1.562 +
1.563 +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_10(_class, _field1,\
1.564 + _field2, \
1.565 + _field3, \
1.566 + _field4, \
1.567 + _field5, \
1.568 + _field6, \
1.569 + _field7, \
1.570 + _field8, \
1.571 + _field9, \
1.572 + _field10) \
1.573 + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
1.574 + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
1.575 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \
1.576 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \
1.577 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \
1.578 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \
1.579 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \
1.580 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field6) \
1.581 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field7) \
1.582 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field8) \
1.583 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field9) \
1.584 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field10) \
1.585 + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \
1.586 + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
1.587 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
1.588 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \
1.589 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \
1.590 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \
1.591 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \
1.592 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \
1.593 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field6) \
1.594 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field7) \
1.595 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field8) \
1.596 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field9) \
1.597 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field10) \
1.598 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
1.599 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
1.600 + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class)
1.601 +
1.602 +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_11(_class, \
1.603 + _field1, \
1.604 + _field2, \
1.605 + _field3, \
1.606 + _field4, \
1.607 + _field5, \
1.608 + _field6, \
1.609 + _field7, \
1.610 + _field8, \
1.611 + _field9, \
1.612 + _field10, \
1.613 + _field11) \
1.614 + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
1.615 + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
1.616 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \
1.617 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \
1.618 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \
1.619 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \
1.620 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \
1.621 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field6) \
1.622 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field7) \
1.623 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field8) \
1.624 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field9) \
1.625 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field10) \
1.626 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field11) \
1.627 + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \
1.628 + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
1.629 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
1.630 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \
1.631 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \
1.632 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \
1.633 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \
1.634 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \
1.635 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field6) \
1.636 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field7) \
1.637 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field8) \
1.638 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field9) \
1.639 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field10) \
1.640 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field11) \
1.641 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
1.642 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
1.643 + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class)
1.644 +
1.645 +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_12(_class, \
1.646 + _field1, \
1.647 + _field2, \
1.648 + _field3, \
1.649 + _field4, \
1.650 + _field5, \
1.651 + _field6, \
1.652 + _field7, \
1.653 + _field8, \
1.654 + _field9, \
1.655 + _field10, \
1.656 + _field11, \
1.657 + _field12) \
1.658 + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
1.659 + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
1.660 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \
1.661 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \
1.662 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \
1.663 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \
1.664 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \
1.665 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field6) \
1.666 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field7) \
1.667 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field8) \
1.668 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field9) \
1.669 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field10) \
1.670 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field11) \
1.671 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field12) \
1.672 + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \
1.673 + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
1.674 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
1.675 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \
1.676 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \
1.677 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \
1.678 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \
1.679 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \
1.680 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field6) \
1.681 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field7) \
1.682 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field8) \
1.683 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field9) \
1.684 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field10) \
1.685 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field11) \
1.686 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field12) \
1.687 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
1.688 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
1.689 + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class)
1.690 +
1.691 +#define NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_13(_class, \
1.692 + _field1, \
1.693 + _field2, \
1.694 + _field3, \
1.695 + _field4, \
1.696 + _field5, \
1.697 + _field6, \
1.698 + _field7, \
1.699 + _field8, \
1.700 + _field9, \
1.701 + _field10, \
1.702 + _field11, \
1.703 + _field12, \
1.704 + _field13) \
1.705 + NS_IMPL_CYCLE_COLLECTION_CLASS(_class) \
1.706 + NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(_class) \
1.707 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field1) \
1.708 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field2) \
1.709 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field3) \
1.710 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field4) \
1.711 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field5) \
1.712 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field6) \
1.713 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field7) \
1.714 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field8) \
1.715 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field9) \
1.716 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field10) \
1.717 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field11) \
1.718 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field12) \
1.719 + NS_IMPL_CYCLE_COLLECTION_UNLINK(_field13) \
1.720 + NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER \
1.721 + NS_IMPL_CYCLE_COLLECTION_UNLINK_END \
1.722 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(_class) \
1.723 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field1) \
1.724 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field2) \
1.725 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field3) \
1.726 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field4) \
1.727 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field5) \
1.728 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field6) \
1.729 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field7) \
1.730 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field8) \
1.731 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field9) \
1.732 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field10) \
1.733 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field11) \
1.734 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field12) \
1.735 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(_field13) \
1.736 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS \
1.737 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END \
1.738 + NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(_class)
1.739 +
1.740 +#endif /* nsWrapperCache_h___ */
