LCOV - code coverage report
Current view: top level - obj-x86_64-pc-linux-gnu/dom/bindings - NotificationEventBinding.cpp (source / functions) Hit Total Coverage
Test: output.info Lines: 5 229 2.2 %
Date: 2017-07-14 16:53:18 Functions: 1 19 5.3 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* THIS FILE IS AUTOGENERATED FROM NotificationEvent.webidl BY Codegen.py - DO NOT EDIT */
       2             : 
       3             : #include "AtomList.h"
       4             : #include "ExtendableEventBinding.h"
       5             : #include "NotificationEventBinding.h"
       6             : #include "WrapperFactory.h"
       7             : #include "mozilla/OwningNonNull.h"
       8             : #include "mozilla/dom/BindingUtils.h"
       9             : #include "mozilla/dom/DOMJSClass.h"
      10             : #include "mozilla/dom/NonRefcountedDOMObject.h"
      11             : #include "mozilla/dom/Notification.h"
      12             : #include "mozilla/dom/NotificationEvent.h"
      13             : #include "mozilla/dom/PrimitiveConversions.h"
      14             : #include "mozilla/dom/ScriptSettings.h"
      15             : #include "nsThreadUtils.h"
      16             : 
      17             : namespace mozilla {
      18             : namespace dom {
      19             : 
      20             : 
      21           0 : NotificationEventInit::NotificationEventInit()
      22           0 :   : ExtendableEventInit(FastDictionaryInitializer())
      23             : {
      24             :   // Safe to pass a null context if we pass a null value
      25           0 :   Init(nullptr, JS::NullHandleValue);
      26           0 : }
      27             : 
      28             : 
      29             : 
      30             : bool
      31           0 : NotificationEventInit::InitIds(JSContext* cx, NotificationEventInitAtoms* atomsCache)
      32             : {
      33           0 :   MOZ_ASSERT(!*reinterpret_cast<jsid**>(atomsCache));
      34             : 
      35             :   // Initialize these in reverse order so that any failure leaves the first one
      36             :   // uninitialized.
      37           0 :   if (!atomsCache->notification_id.init(cx, "notification")) {
      38           0 :     return false;
      39             :   }
      40           0 :   return true;
      41             : }
      42             : 
      43             : bool
      44           0 : NotificationEventInit::Init(JSContext* cx, JS::Handle<JS::Value> val, const char* sourceDescription, bool passedToJSImpl)
      45             : {
      46             :   // Passing a null JSContext is OK only if we're initing from null,
      47             :   // Since in that case we will not have to do any property gets
      48             :   // Also evaluate isNullOrUndefined in order to avoid false-positive
      49             :   // checkers by static analysis tools
      50           0 :   MOZ_ASSERT_IF(!cx, val.isNull() && val.isNullOrUndefined());
      51           0 :   NotificationEventInitAtoms* atomsCache = nullptr;
      52           0 :   if (cx) {
      53           0 :     atomsCache = GetAtomCache<NotificationEventInitAtoms>(cx);
      54           0 :     if (!*reinterpret_cast<jsid**>(atomsCache) && !InitIds(cx, atomsCache)) {
      55           0 :       return false;
      56             :     }
      57             :   }
      58             : 
      59             :   // Per spec, we init the parent's members first
      60           0 :   if (!ExtendableEventInit::Init(cx, val)) {
      61           0 :     return false;
      62             :   }
      63             : 
      64           0 :   bool isNull = val.isNullOrUndefined();
      65             :   // We only need these if !isNull, in which case we have |cx|.
      66           0 :   Maybe<JS::Rooted<JSObject *> > object;
      67           0 :   Maybe<JS::Rooted<JS::Value> > temp;
      68           0 :   if (!isNull) {
      69           0 :     MOZ_ASSERT(cx);
      70           0 :     object.emplace(cx, &val.toObject());
      71           0 :     temp.emplace(cx);
      72             :   }
      73           0 :   if (!isNull) {
      74           0 :     if (!JS_GetPropertyById(cx, *object, atomsCache->notification_id, temp.ptr())) {
      75           0 :       return false;
      76             :     }
      77             :   }
      78           0 :   if (!isNull && !temp->isUndefined()) {
      79           0 :     if (temp.ref().isObject()) {
      80             :       static_assert(IsRefcounted<mozilla::dom::Notification>::value, "We can only store refcounted classes.");{
      81           0 :         nsresult rv = UnwrapObject<prototypes::id::Notification, mozilla::dom::Notification>(temp.ptr(), mNotification);
      82           0 :         if (NS_FAILED(rv)) {
      83           0 :           ThrowErrorMessage(cx, MSG_DOES_NOT_IMPLEMENT_INTERFACE, "'notification' member of NotificationEventInit", "Notification");
      84           0 :           return false;
      85             :         }
      86             :       }
      87             :     } else {
      88           0 :       ThrowErrorMessage(cx, MSG_NOT_OBJECT, "'notification' member of NotificationEventInit");
      89           0 :       return false;
      90             :     }
      91           0 :     mIsAnyMemberPresent = true;
      92           0 :   } else if (cx) {
      93             :     // Don't error out if we have no cx.  In that
      94             :     // situation the caller is default-constructing us and we'll
      95             :     // just assume they know what they're doing.
      96           0 :     return ThrowErrorMessage(cx, MSG_MISSING_REQUIRED_DICTIONARY_MEMBER,
      97           0 :                              "'notification' member of NotificationEventInit");
      98             :   }
      99           0 :   return true;
     100             : }
     101             : 
     102             : bool
     103           0 : NotificationEventInit::ToObjectInternal(JSContext* cx, JS::MutableHandle<JS::Value> rval) const
     104             : {
     105           0 :   NotificationEventInitAtoms* atomsCache = GetAtomCache<NotificationEventInitAtoms>(cx);
     106           0 :   if (!*reinterpret_cast<jsid**>(atomsCache) && !InitIds(cx, atomsCache)) {
     107           0 :     return false;
     108             :   }
     109             : 
     110             :   // Per spec, we define the parent's members first
     111           0 :   if (!ExtendableEventInit::ToObjectInternal(cx, rval)) {
     112           0 :     return false;
     113             :   }
     114           0 :   JS::Rooted<JSObject*> obj(cx, &rval.toObject());
     115             : 
     116             :   do {
     117             :     // block for our 'break' successCode and scope for 'temp' and 'currentValue'
     118           0 :     JS::Rooted<JS::Value> temp(cx);
     119           0 :     OwningNonNull<mozilla::dom::Notification> const & currentValue = mNotification;
     120           0 :     if (!GetOrCreateDOMReflector(cx, currentValue, &temp)) {
     121           0 :       MOZ_ASSERT(true || JS_IsExceptionPending(cx));
     122           0 :       return false;
     123             :     }
     124           0 :     if (!JS_DefinePropertyById(cx, obj, atomsCache->notification_id, temp, JSPROP_ENUMERATE)) {
     125           0 :       return false;
     126             :     }
     127           0 :     break;
     128             :   } while(0);
     129             : 
     130           0 :   return true;
     131             : }
     132             : 
     133             : void
     134           0 : NotificationEventInit::TraceDictionary(JSTracer* trc)
     135             : {
     136           0 :   ExtendableEventInit::TraceDictionary(trc);
     137           0 : }
     138             : 
     139             : NotificationEventInit&
     140           0 : NotificationEventInit::operator=(const NotificationEventInit& aOther)
     141             : {
     142           0 :   ExtendableEventInit::operator=(aOther);
     143           0 :   mNotification = aOther.mNotification;
     144           0 :   return *this;
     145             : }
     146             : 
     147             : namespace binding_detail {
     148             : } // namespace binding_detail
     149             : 
     150             : 
     151             : namespace NotificationEventBinding {
     152             : 
     153             : static_assert(IsRefcounted<NativeType>::value == IsRefcounted<ExtendableEventBinding::NativeType>::value,
     154             :               "Can't inherit from an interface with a different ownership model.");
     155             : 
     156             : static bool
     157           0 : get_notification(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::workers::NotificationEvent* self, JSJitGetterCallArgs args)
     158             : {
     159           0 :   auto result(StrongOrRawPtr<mozilla::dom::Notification>(self->Notification_()));
     160           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
     161           0 :   if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
     162           0 :     MOZ_ASSERT(true || JS_IsExceptionPending(cx));
     163           0 :     return false;
     164             :   }
     165           0 :   return true;
     166             : }
     167             : 
     168             : static const JSJitInfo notification_getterinfo = {
     169             :   { (JSJitGetterOp)get_notification },
     170             :   { prototypes::id::NotificationEvent },
     171             :   { PrototypeTraits<prototypes::id::NotificationEvent>::Depth },
     172             :   JSJitInfo::Getter,
     173             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
     174             :   JSVAL_TYPE_OBJECT,  /* returnType.  Not relevant for setters. */
     175             :   false,  /* isInfallible. False in setters. */
     176             :   false,  /* isMovable.  Not relevant for setters. */
     177             :   false, /* isEliminatable.  Not relevant for setters. */
     178             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
     179             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
     180             :   false,  /* isTypedMethod.  Only relevant for methods. */
     181             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
     182             : };
     183             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
     184             : static_assert(0 < 1, "There is no slot for us");
     185             : 
     186             : static bool
     187           0 : get_isTrusted(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::workers::NotificationEvent* self, JSJitGetterCallArgs args)
     188             : {
     189           0 :   bool result(self->IsTrusted());
     190           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
     191           0 :   args.rval().setBoolean(result);
     192           0 :   return true;
     193             : }
     194             : 
     195             : static const JSJitInfo isTrusted_getterinfo = {
     196             :   { (JSJitGetterOp)get_isTrusted },
     197             :   { prototypes::id::NotificationEvent },
     198             :   { PrototypeTraits<prototypes::id::NotificationEvent>::Depth },
     199             :   JSJitInfo::Getter,
     200             :   JSJitInfo::AliasDOMSets, /* aliasSet.  Not relevant for setters. */
     201             :   JSVAL_TYPE_BOOLEAN,  /* returnType.  Not relevant for setters. */
     202             :   true,  /* isInfallible. False in setters. */
     203             :   true,  /* isMovable.  Not relevant for setters. */
     204             :   true, /* isEliminatable.  Not relevant for setters. */
     205             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
     206             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
     207             :   false,  /* isTypedMethod.  Only relevant for methods. */
     208             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
     209             : };
     210             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
     211             : static_assert(0 < 1, "There is no slot for us");
     212             : 
     213             : static bool
     214           0 : _addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
     215             : {
     216           0 :   mozilla::dom::workers::NotificationEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::workers::NotificationEvent>(obj);
     217             :   // We don't want to preserve if we don't have a wrapper, and we
     218             :   // obviously can't preserve if we're not initialized.
     219           0 :   if (self && self->GetWrapperPreserveColor()) {
     220           0 :     PreserveWrapper(self);
     221             :   }
     222           0 :   return true;
     223             : }
     224             : 
     225             : static void
     226           0 : _finalize(js::FreeOp* fop, JSObject* obj)
     227             : {
     228           0 :   mozilla::dom::workers::NotificationEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::workers::NotificationEvent>(obj);
     229           0 :   if (self) {
     230           0 :     ClearWrapper(self, self, obj);
     231           0 :     AddForDeferredFinalization<mozilla::dom::workers::NotificationEvent>(self);
     232             :   }
     233           0 : }
     234             : 
     235             : static void
     236           0 : _objectMoved(JSObject* obj, const JSObject* old)
     237             : {
     238           0 :   mozilla::dom::workers::NotificationEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::workers::NotificationEvent>(obj);
     239           0 :   if (self) {
     240           0 :     UpdateWrapper(self, self, obj, old);
     241             :   }
     242           0 : }
     243             : 
     244             : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
     245             : #if defined(__clang__)
     246             : #pragma clang diagnostic push
     247             : #pragma clang diagnostic ignored "-Wmissing-braces"
     248             : #endif
     249             : static const JSPropertySpec sAttributes_specs[] = {
     250             :   { "notification", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &notification_getterinfo, nullptr, nullptr },
     251             :   { nullptr, 0, nullptr, nullptr, nullptr, nullptr }
     252             : };
     253             : #if defined(__clang__)
     254             : #pragma clang diagnostic pop
     255             : #endif
     256             : 
     257             : 
     258             : // Can't be const because the pref-enabled boolean needs to be writable
     259             : static Prefable<const JSPropertySpec> sAttributes[] = {
     260             :   { nullptr, &sAttributes_specs[0] },
     261             :   { nullptr, nullptr }
     262             : };
     263             : 
     264             : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
     265             : #if defined(__clang__)
     266             : #pragma clang diagnostic push
     267             : #pragma clang diagnostic ignored "-Wmissing-braces"
     268             : #endif
     269             : static const JSPropertySpec sUnforgeableAttributes_specs[] = {
     270             :   { "isTrusted", JSPROP_SHARED | JSPROP_ENUMERATE | JSPROP_PERMANENT, GenericBindingGetter, &isTrusted_getterinfo, nullptr, nullptr },
     271             :   { nullptr, 0, nullptr, nullptr, nullptr, nullptr }
     272             : };
     273             : #if defined(__clang__)
     274             : #pragma clang diagnostic pop
     275             : #endif
     276             : 
     277             : 
     278             : // Can't be const because the pref-enabled boolean needs to be writable
     279             : static Prefable<const JSPropertySpec> sUnforgeableAttributes[] = {
     280             :   { nullptr, &sUnforgeableAttributes_specs[0] },
     281             :   { nullptr, nullptr }
     282             : };
     283             : 
     284             : 
     285             : static const NativePropertiesN<2> sNativeProperties = {
     286             :   false, 0,
     287             :   false, 0,
     288             :   false, 0,
     289             :   true,  0 /* sAttributes */,
     290             :   false, 0,
     291             :   true,  1 /* sUnforgeableAttributes */,
     292             :   false, 0,
     293             :   -1,
     294             :   0,
     295             :   nullptr,
     296             :   {
     297             :     { sAttributes, nullptr },
     298             :     { sUnforgeableAttributes, nullptr }
     299             :   }
     300             : };
     301             : 
     302             : static bool
     303           0 : _constructor(JSContext* cx, unsigned argc, JS::Value* vp)
     304             : {
     305           0 :   JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
     306           0 :   JS::Rooted<JSObject*> obj(cx, &args.callee());
     307           0 :   if (!args.isConstructing()) {
     308             :     // XXXbz wish I could get the name from the callee instead of
     309             :     // Adding more relocations
     310           0 :     return ThrowConstructorWithoutNew(cx, "NotificationEvent");
     311             :   }
     312             : 
     313           0 :   GlobalObject global(cx, obj);
     314           0 :   if (global.Failed()) {
     315           0 :     return false;
     316             :   }
     317             : 
     318           0 :   JS::Rooted<JSObject*> desiredProto(cx);
     319           0 :   if (!GetDesiredProto(cx, args, &desiredProto)) {
     320           0 :     return false;
     321             :   }
     322             : 
     323           0 :   if (MOZ_UNLIKELY(args.length() < 2)) {
     324           0 :     return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "NotificationEvent");
     325             :   }
     326           0 :   bool objIsXray = xpc::WrapperFactory::IsXrayWrapper(obj);
     327           0 :   binding_detail::FakeString arg0;
     328           0 :   if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
     329           0 :     return false;
     330             :   }
     331           0 :   binding_detail::FastNotificationEventInit arg1;
     332           0 :   if (!arg1.Init(cx, args[1],  "Argument 2 of NotificationEvent.constructor", false)) {
     333           0 :     return false;
     334             :   }
     335           0 :   Maybe<JSAutoCompartment> ac;
     336           0 :   if (objIsXray) {
     337           0 :     obj = js::CheckedUnwrap(obj);
     338           0 :     if (!obj) {
     339           0 :       return false;
     340             :     }
     341           0 :     ac.emplace(cx, obj);
     342           0 :     if (!JS_WrapObject(cx, &desiredProto)) {
     343           0 :       return false;
     344             :     }
     345             :   }
     346           0 :   binding_detail::FastErrorResult rv;
     347           0 :   auto result(StrongOrRawPtr<mozilla::dom::workers::NotificationEvent>(mozilla::dom::workers::NotificationEvent::Constructor(global, NonNullHelper(Constify(arg0)), Constify(arg1), rv)));
     348           0 :   if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
     349           0 :     return false;
     350             :   }
     351           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
     352             :   static_assert(!IsPointer<decltype(result)>::value,
     353             :                 "NewObject implies that we need to keep the object alive with a strong reference.");
     354           0 :   if (!GetOrCreateDOMReflector(cx, result, args.rval(), desiredProto)) {
     355           0 :     MOZ_ASSERT(true || JS_IsExceptionPending(cx));
     356           0 :     return false;
     357             :   }
     358           0 :   return true;
     359             : }
     360             : 
     361             : static const js::ClassOps sInterfaceObjectClassOps = {
     362             :     nullptr,               /* addProperty */
     363             :     nullptr,               /* delProperty */
     364             :     nullptr,               /* getProperty */
     365             :     nullptr,               /* setProperty */
     366             :     nullptr,               /* enumerate */
     367             :     nullptr,               /* newEnumerate */
     368             :     nullptr,               /* resolve */
     369             :     nullptr,               /* mayResolve */
     370             :     nullptr,               /* finalize */
     371             :     _constructor, /* call */
     372             :     nullptr,               /* hasInstance */
     373             :     _constructor, /* construct */
     374             :     nullptr,               /* trace */
     375             : };
     376             : 
     377             : static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
     378             :   {
     379             :     "Function",
     380             :     JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
     381             :     &sInterfaceObjectClassOps,
     382             :     JS_NULL_CLASS_SPEC,
     383             :     JS_NULL_CLASS_EXT,
     384             :     &sInterfaceObjectClassObjectOps
     385             :   },
     386             :   eInterface,
     387             :   true,
     388             :   prototypes::id::NotificationEvent,
     389             :   PrototypeTraits<prototypes::id::NotificationEvent>::Depth,
     390             :   &sEmptyNativePropertyHooks,
     391             :   "function NotificationEvent() {\n    [native code]\n}",
     392             :   ExtendableEventBinding::GetConstructorObject
     393             : };
     394             : 
     395             : static const DOMIfaceAndProtoJSClass sPrototypeClass = {
     396             :   {
     397             :     "NotificationEventPrototype",
     398             :     JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE + 1 /* slot for the JSObject holding the unforgeable properties */),
     399             :     JS_NULL_CLASS_OPS,
     400             :     JS_NULL_CLASS_SPEC,
     401             :     JS_NULL_CLASS_EXT,
     402             :     JS_NULL_OBJECT_OPS
     403             :   },
     404             :   eInterfacePrototype,
     405             :   false,
     406             :   prototypes::id::NotificationEvent,
     407             :   PrototypeTraits<prototypes::id::NotificationEvent>::Depth,
     408             :   &sEmptyNativePropertyHooks,
     409             :   "[object NotificationEventPrototype]",
     410             :   ExtendableEventBinding::GetProtoObject
     411             : };
     412             : 
     413             : bool
     414           1 : ConstructorEnabled(JSContext* aCx, JS::Handle<JSObject*> aObj)
     415             : {
     416           1 :   MOZ_ASSERT(!NS_IsMainThread(), "Why did we even get called?");
     417             : 
     418           1 :   const char* name = js::GetObjectClass(aObj)->name;
     419           1 :   if (strcmp(name, "ServiceWorkerGlobalScope")) {
     420           1 :     return false;
     421             :   }
     422             : 
     423           0 :   return mozilla::dom::Notification::PrefEnabled(aCx, aObj);
     424             : }
     425             : 
     426             : static const js::ClassOps sClassOps = {
     427             :   _addProperty, /* addProperty */
     428             :   nullptr,               /* delProperty */
     429             :   nullptr,               /* getProperty */
     430             :   nullptr,               /* setProperty */
     431             :   nullptr,               /* enumerate */
     432             :   nullptr, /* newEnumerate */
     433             :   nullptr, /* resolve */
     434             :   nullptr, /* mayResolve */
     435             :   _finalize, /* finalize */
     436             :   nullptr, /* call */
     437             :   nullptr,               /* hasInstance */
     438             :   nullptr,               /* construct */
     439             :   nullptr, /* trace */
     440             : };
     441             : 
     442             : static const js::ClassExtension sClassExtension = {
     443             :   nullptr, /* weakmapKeyDelegateOp */
     444             :   _objectMoved /* objectMovedOp */
     445             : };
     446             : 
     447             : static const DOMJSClass sClass = {
     448             :   { "NotificationEvent",
     449             :     JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1) | JSCLASS_SKIP_NURSERY_FINALIZE,
     450             :     &sClassOps,
     451             :     JS_NULL_CLASS_SPEC,
     452             :     &sClassExtension,
     453             :     JS_NULL_OBJECT_OPS
     454             :   },
     455             :   { prototypes::id::Event, prototypes::id::ExtendableEvent, prototypes::id::NotificationEvent, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
     456             :   IsBaseOf<nsISupports, mozilla::dom::workers::NotificationEvent >::value,
     457             :   &sEmptyNativePropertyHooks,
     458             :   FindAssociatedGlobalForNative<mozilla::dom::workers::NotificationEvent>::Get,
     459             :   GetProtoObjectHandle,
     460             :   GetCCParticipant<mozilla::dom::workers::NotificationEvent>::Get()
     461             : };
     462             : static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
     463             :               "Must have the right minimal number of reserved slots.");
     464             : static_assert(1 >= 1,
     465             :               "Must have enough reserved slots.");
     466             : 
     467             : const JSClass*
     468           0 : GetJSClass()
     469             : {
     470           0 :   return sClass.ToJSClass();
     471             : }
     472             : 
     473             : bool
     474           0 : Wrap(JSContext* aCx, mozilla::dom::workers::NotificationEvent* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
     475             : {
     476             :   MOZ_ASSERT(static_cast<mozilla::dom::workers::NotificationEvent*>(aObject) ==
     477             :              reinterpret_cast<mozilla::dom::workers::NotificationEvent*>(aObject),
     478             :              "Multiple inheritance for mozilla::dom::workers::NotificationEvent is broken.");
     479             :   MOZ_ASSERT(static_cast<mozilla::dom::workers::ExtendableEvent*>(aObject) ==
     480             :              reinterpret_cast<mozilla::dom::workers::ExtendableEvent*>(aObject),
     481             :              "Multiple inheritance for mozilla::dom::workers::ExtendableEvent is broken.");
     482             :   MOZ_ASSERT(static_cast<mozilla::dom::Event*>(aObject) ==
     483             :              reinterpret_cast<mozilla::dom::Event*>(aObject),
     484             :              "Multiple inheritance for mozilla::dom::Event is broken.");
     485           0 :   MOZ_ASSERT(ToSupportsIsCorrect(aObject));
     486           0 :   MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
     487           0 :   MOZ_ASSERT(!aCache->GetWrapper(),
     488             :              "You should probably not be using Wrap() directly; use "
     489             :              "GetOrCreateDOMReflector instead");
     490             : 
     491           0 :   MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
     492             :              "nsISupports must be on our primary inheritance chain");
     493             : 
     494           0 :   JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
     495           0 :   if (!global) {
     496           0 :     return false;
     497             :   }
     498           0 :   MOZ_ASSERT(JS_IsGlobalObject(global));
     499           0 :   MOZ_ASSERT(JS::ObjectIsNotGray(global));
     500             : 
     501             :   // That might have ended up wrapping us already, due to the wonders
     502             :   // of XBL.  Check for that, and bail out as needed.
     503           0 :   aReflector.set(aCache->GetWrapper());
     504           0 :   if (aReflector) {
     505             : #ifdef DEBUG
     506           0 :     binding_detail::AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
     507             : #endif // DEBUG
     508           0 :     return true;
     509             :   }
     510             : 
     511           0 :   JSAutoCompartment ac(aCx, global);
     512           0 :   JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
     513           0 :   if (!canonicalProto) {
     514           0 :     return false;
     515             :   }
     516           0 :   JS::Rooted<JSObject*> proto(aCx);
     517           0 :   if (aGivenProto) {
     518           0 :     proto = aGivenProto;
     519             :     // Unfortunately, while aGivenProto was in the compartment of aCx
     520             :     // coming in, we changed compartments to that of "parent" so may need
     521             :     // to wrap the proto here.
     522           0 :     if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
     523           0 :       if (!JS_WrapObject(aCx, &proto)) {
     524           0 :         return false;
     525             :       }
     526             :     }
     527             :   } else {
     528           0 :     proto = canonicalProto;
     529             :   }
     530             : 
     531           0 :   BindingJSObjectCreator<mozilla::dom::workers::NotificationEvent> creator(aCx);
     532           0 :   creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
     533           0 :   if (!aReflector) {
     534           0 :     return false;
     535             :   }
     536             : 
     537           0 :   aCache->SetWrapper(aReflector);
     538             : 
     539             :   // Important: do unforgeable property setup after we have handed
     540             :   // over ownership of the C++ object to obj as needed, so that if
     541             :   // we fail and it ends up GCed it won't have problems in the
     542             :   // finalizer trying to drop its ownership of the C++ object.
     543             :   JS::Rooted<JSObject*> unforgeableHolder(aCx,
     544           0 :     &js::GetReservedSlot(canonicalProto, DOM_INTERFACE_PROTO_SLOTS_BASE).toObject());
     545           0 :   if (!JS_InitializePropertiesFromCompatibleNativeObject(aCx, aReflector, unforgeableHolder)) {
     546           0 :     aCache->ReleaseWrapper(aObject);
     547           0 :     aCache->ClearWrapper();
     548           0 :     return false;
     549             :   }
     550           0 :   creator.InitializationSucceeded();
     551             : 
     552           0 :   MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
     553             :              aCache->GetWrapperPreserveColor() == aReflector);
     554             :   // If proto != canonicalProto, we have to preserve our wrapper;
     555             :   // otherwise we won't be able to properly recreate it later, since
     556             :   // we won't know what proto to use.  Note that we don't check
     557             :   // aGivenProto here, since it's entirely possible (and even
     558             :   // somewhat common) to have a non-null aGivenProto which is the
     559             :   // same as canonicalProto.
     560           0 :   if (proto != canonicalProto) {
     561           0 :     PreserveWrapper(aObject);
     562             :   }
     563             : 
     564           0 :   return true;
     565             : }
     566             : 
     567             : void
     568           0 : CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
     569             : {
     570           0 :   JS::Handle<JSObject*> parentProto(ExtendableEventBinding::GetProtoObjectHandle(aCx));
     571           0 :   if (!parentProto) {
     572           0 :     return;
     573             :   }
     574             : 
     575           0 :   JS::Handle<JSObject*> constructorProto(ExtendableEventBinding::GetConstructorObjectHandle(aCx));
     576           0 :   if (!constructorProto) {
     577           0 :     return;
     578             :   }
     579             : 
     580           0 :   JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::NotificationEvent);
     581           0 :   JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::NotificationEvent);
     582           0 :   dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
     583             :                               &sPrototypeClass.mBase, protoCache,
     584             :                               constructorProto, &sInterfaceObjectClass.mBase, 2, nullptr,
     585             :                               interfaceCache,
     586             :                               sNativeProperties.Upcast(),
     587             :                               nullptr,
     588             :                               "NotificationEvent", aDefineOnGlobal,
     589             :                               nullptr,
     590           0 :                               false);
     591             : 
     592           0 :   JS::Rooted<JSObject*> unforgeableHolder(aCx);
     593             :   {
     594           0 :     JS::Rooted<JSObject*> holderProto(aCx, *protoCache);
     595           0 :     unforgeableHolder = JS_NewObjectWithoutMetadata(aCx, sClass.ToJSClass(), holderProto);
     596           0 :     if (!unforgeableHolder) {
     597           0 :       *protoCache = nullptr;
     598           0 :       if (interfaceCache) {
     599           0 :         *interfaceCache = nullptr;
     600             :       }
     601           0 :       return;
     602             :     }
     603             :   }
     604             : 
     605           0 :   if (!DefineUnforgeableAttributes(aCx, unforgeableHolder, sUnforgeableAttributes)) {
     606           0 :     *protoCache = nullptr;
     607           0 :     if (interfaceCache) {
     608           0 :       *interfaceCache = nullptr;
     609             :     }
     610           0 :     return;
     611             :   }
     612             : 
     613           0 :   if (*protoCache) {
     614           0 :     js::SetReservedSlot(*protoCache, DOM_INTERFACE_PROTO_SLOTS_BASE,
     615           0 :                         JS::ObjectValue(*unforgeableHolder));
     616             :   }
     617             : }
     618             : 
     619             : JS::Handle<JSObject*>
     620           0 : GetProtoObjectHandle(JSContext* aCx)
     621             : {
     622             :   /* Get the interface prototype object for this class.  This will create the
     623             :      object as needed. */
     624           0 :   bool aDefineOnGlobal = true;
     625             : 
     626             :   /* Make sure our global is sane.  Hopefully we can remove this sometime */
     627           0 :   JSObject* global = JS::CurrentGlobalOrNull(aCx);
     628           0 :   if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
     629           0 :     return nullptr;
     630             :   }
     631             : 
     632             :   /* Check to see whether the interface objects are already installed */
     633           0 :   ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
     634           0 :   if (!protoAndIfaceCache.HasEntryInSlot(prototypes::id::NotificationEvent)) {
     635           0 :     JS::Rooted<JSObject*> rootedGlobal(aCx, global);
     636           0 :     CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
     637             :   }
     638             : 
     639             :   /*
     640             :    * The object might _still_ be null, but that's OK.
     641             :    *
     642             :    * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
     643             :    * traced by TraceProtoAndIfaceCache() and its contents are never
     644             :    * changed after they have been set.
     645             :    *
     646             :    * Calling address() avoids the read read barrier that does gray
     647             :    * unmarking, but it's not possible for the object to be gray here.
     648             :    */
     649             : 
     650           0 :   const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(prototypes::id::NotificationEvent);
     651           0 :   MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
     652           0 :   return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
     653             : }
     654             : 
     655             : JS::Handle<JSObject*>
     656           0 : GetConstructorObjectHandle(JSContext* aCx, bool aDefineOnGlobal)
     657             : {
     658             :   /* Get the interface object for this class.  This will create the object as
     659             :      needed. */
     660             : 
     661             :   /* Make sure our global is sane.  Hopefully we can remove this sometime */
     662           0 :   JSObject* global = JS::CurrentGlobalOrNull(aCx);
     663           0 :   if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
     664           0 :     return nullptr;
     665             :   }
     666             : 
     667             :   /* Check to see whether the interface objects are already installed */
     668           0 :   ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
     669           0 :   if (!protoAndIfaceCache.HasEntryInSlot(constructors::id::NotificationEvent)) {
     670           0 :     JS::Rooted<JSObject*> rootedGlobal(aCx, global);
     671           0 :     CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
     672             :   }
     673             : 
     674             :   /*
     675             :    * The object might _still_ be null, but that's OK.
     676             :    *
     677             :    * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
     678             :    * traced by TraceProtoAndIfaceCache() and its contents are never
     679             :    * changed after they have been set.
     680             :    *
     681             :    * Calling address() avoids the read read barrier that does gray
     682             :    * unmarking, but it's not possible for the object to be gray here.
     683             :    */
     684             : 
     685           0 :   const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(constructors::id::NotificationEvent);
     686           0 :   MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
     687           0 :   return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
     688             : }
     689             : 
     690             : JSObject*
     691           0 : GetConstructorObject(JSContext* aCx)
     692             : {
     693           0 :   return GetConstructorObjectHandle(aCx);
     694             : }
     695             : 
     696             : } // namespace NotificationEventBinding
     697             : 
     698             : 
     699             : 
     700             : } // namespace dom
     701             : } // namespace mozilla

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