LCOV - code coverage report
Current view: top level - obj-x86_64-pc-linux-gnu/dom/bindings - DOMImplementationBinding.cpp (source / functions) Hit Total Coverage
Test: output.info Lines: 0 166 0.0 %
Date: 2017-07-14 16:53:18 Functions: 0 14 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* THIS FILE IS AUTOGENERATED FROM DOMImplementation.webidl BY Codegen.py - DO NOT EDIT */
       2             : 
       3             : #include "DOMImplementationBinding.h"
       4             : #include "WrapperFactory.h"
       5             : #include "mozilla/OwningNonNull.h"
       6             : #include "mozilla/dom/BindingUtils.h"
       7             : #include "mozilla/dom/DOMImplementation.h"
       8             : #include "mozilla/dom/DOMJSClass.h"
       9             : #include "mozilla/dom/DocumentType.h"
      10             : #include "mozilla/dom/NonRefcountedDOMObject.h"
      11             : #include "mozilla/dom/Nullable.h"
      12             : #include "mozilla/dom/PrimitiveConversions.h"
      13             : #include "mozilla/dom/XrayExpandoClass.h"
      14             : #include "nsIDocument.h"
      15             : #include "nsISupports.h"
      16             : #include "xpcjsid.h"
      17             : 
      18             : namespace mozilla {
      19             : namespace dom {
      20             : 
      21             : namespace DOMImplementationBinding {
      22             : 
      23             : static bool
      24           0 : hasFeature(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::DOMImplementation* self, const JSJitMethodCallArgs& args)
      25             : {
      26           0 :   bool result(self->HasFeature());
      27           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
      28           0 :   args.rval().setBoolean(result);
      29           0 :   return true;
      30             : }
      31             : 
      32             : static const JSJitInfo hasFeature_methodinfo = {
      33             :   { (JSJitGetterOp)hasFeature },
      34             :   { prototypes::id::DOMImplementation },
      35             :   { PrototypeTraits<prototypes::id::DOMImplementation>::Depth },
      36             :   JSJitInfo::Method,
      37             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
      38             :   JSVAL_TYPE_BOOLEAN,  /* returnType.  Not relevant for setters. */
      39             :   true,  /* isInfallible. False in setters. */
      40             :   false,  /* isMovable.  Not relevant for setters. */
      41             :   false, /* isEliminatable.  Not relevant for setters. */
      42             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
      43             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
      44             :   false,  /* isTypedMethod.  Only relevant for methods. */
      45             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
      46             : };
      47             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
      48             : static_assert(0 < 1, "There is no slot for us");
      49             : 
      50             : static bool
      51           0 : createDocumentType(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::DOMImplementation* self, const JSJitMethodCallArgs& args)
      52             : {
      53           0 :   if (MOZ_UNLIKELY(args.length() < 3)) {
      54           0 :     return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "DOMImplementation.createDocumentType");
      55             :   }
      56           0 :   binding_detail::FakeString arg0;
      57           0 :   if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
      58           0 :     return false;
      59             :   }
      60           0 :   binding_detail::FakeString arg1;
      61           0 :   if (!ConvertJSValueToString(cx, args[1], eStringify, eStringify, arg1)) {
      62           0 :     return false;
      63             :   }
      64           0 :   binding_detail::FakeString arg2;
      65           0 :   if (!ConvertJSValueToString(cx, args[2], eStringify, eStringify, arg2)) {
      66           0 :     return false;
      67             :   }
      68           0 :   binding_detail::FastErrorResult rv;
      69           0 :   auto result(StrongOrRawPtr<mozilla::dom::DocumentType>(self->CreateDocumentType(NonNullHelper(Constify(arg0)), NonNullHelper(Constify(arg1)), NonNullHelper(Constify(arg2)), rv)));
      70           0 :   if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
      71           0 :     return false;
      72             :   }
      73           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
      74           0 :   if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
      75           0 :     MOZ_ASSERT(true || JS_IsExceptionPending(cx));
      76           0 :     return false;
      77             :   }
      78           0 :   return true;
      79             : }
      80             : 
      81             : static const JSJitInfo createDocumentType_methodinfo = {
      82             :   { (JSJitGetterOp)createDocumentType },
      83             :   { prototypes::id::DOMImplementation },
      84             :   { PrototypeTraits<prototypes::id::DOMImplementation>::Depth },
      85             :   JSJitInfo::Method,
      86             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
      87             :   JSVAL_TYPE_OBJECT,  /* returnType.  Not relevant for setters. */
      88             :   false,  /* isInfallible. False in setters. */
      89             :   false,  /* isMovable.  Not relevant for setters. */
      90             :   false, /* isEliminatable.  Not relevant for setters. */
      91             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
      92             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
      93             :   false,  /* isTypedMethod.  Only relevant for methods. */
      94             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
      95             : };
      96             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
      97             : static_assert(0 < 1, "There is no slot for us");
      98             : 
      99             : static bool
     100           0 : createDocument(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::DOMImplementation* self, const JSJitMethodCallArgs& args)
     101             : {
     102           0 :   if (MOZ_UNLIKELY(args.length() < 2)) {
     103           0 :     return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "DOMImplementation.createDocument");
     104             :   }
     105           0 :   binding_detail::FakeString arg0;
     106           0 :   if (!ConvertJSValueToString(cx, args[0], eNull, eNull, arg0)) {
     107           0 :     return false;
     108             :   }
     109           0 :   binding_detail::FakeString arg1;
     110           0 :   if (!ConvertJSValueToString(cx, args[1], eEmpty, eStringify, arg1)) {
     111           0 :     return false;
     112             :   }
     113             :   mozilla::dom::DocumentType* arg2;
     114           0 :   if (args.hasDefined(2)) {
     115           0 :     if (args[2].isObject()) {
     116             :       {
     117           0 :         nsresult rv = UnwrapObject<prototypes::id::DocumentType, mozilla::dom::DocumentType>(args[2], arg2);
     118           0 :         if (NS_FAILED(rv)) {
     119           0 :           ThrowErrorMessage(cx, MSG_DOES_NOT_IMPLEMENT_INTERFACE, "Argument 3 of DOMImplementation.createDocument", "DocumentType");
     120           0 :           return false;
     121             :         }
     122             :       }
     123           0 :     } else if (args[2].isNullOrUndefined()) {
     124           0 :       arg2 = nullptr;
     125             :     } else {
     126           0 :       ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Argument 3 of DOMImplementation.createDocument");
     127           0 :       return false;
     128             :     }
     129             :   } else {
     130           0 :     arg2 = nullptr;
     131             :   }
     132           0 :   binding_detail::FastErrorResult rv;
     133           0 :   auto result(StrongOrRawPtr<nsIDocument>(self->CreateDocument(NonNullHelper(Constify(arg0)), NonNullHelper(Constify(arg1)), Constify(arg2), rv)));
     134           0 :   if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
     135           0 :     return false;
     136             :   }
     137           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
     138           0 :   if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
     139           0 :     MOZ_ASSERT(true || JS_IsExceptionPending(cx));
     140           0 :     return false;
     141             :   }
     142           0 :   return true;
     143             : }
     144             : 
     145             : static const JSJitInfo createDocument_methodinfo = {
     146             :   { (JSJitGetterOp)createDocument },
     147             :   { prototypes::id::DOMImplementation },
     148             :   { PrototypeTraits<prototypes::id::DOMImplementation>::Depth },
     149             :   JSJitInfo::Method,
     150             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
     151             :   JSVAL_TYPE_OBJECT,  /* returnType.  Not relevant for setters. */
     152             :   false,  /* isInfallible. False in setters. */
     153             :   false,  /* isMovable.  Not relevant for setters. */
     154             :   false, /* isEliminatable.  Not relevant for setters. */
     155             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
     156             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
     157             :   false,  /* isTypedMethod.  Only relevant for methods. */
     158             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
     159             : };
     160             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
     161             : static_assert(0 < 1, "There is no slot for us");
     162             : 
     163             : static bool
     164           0 : createHTMLDocument(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::DOMImplementation* self, const JSJitMethodCallArgs& args)
     165             : {
     166           0 :   Optional<nsAString> arg0;
     167           0 :   binding_detail::FakeString arg0_holder;
     168           0 :   if (args.hasDefined(0)) {
     169           0 :     if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0_holder)) {
     170           0 :       return false;
     171             :     }
     172           0 :     arg0 = &arg0_holder;
     173             :   }
     174           0 :   binding_detail::FastErrorResult rv;
     175           0 :   auto result(StrongOrRawPtr<nsIDocument>(self->CreateHTMLDocument(NonNullHelper(Constify(arg0)), rv)));
     176           0 :   if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
     177           0 :     return false;
     178             :   }
     179           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
     180           0 :   if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
     181           0 :     MOZ_ASSERT(true || JS_IsExceptionPending(cx));
     182           0 :     return false;
     183             :   }
     184           0 :   return true;
     185             : }
     186             : 
     187             : static const JSJitInfo createHTMLDocument_methodinfo = {
     188             :   { (JSJitGetterOp)createHTMLDocument },
     189             :   { prototypes::id::DOMImplementation },
     190             :   { PrototypeTraits<prototypes::id::DOMImplementation>::Depth },
     191             :   JSJitInfo::Method,
     192             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
     193             :   JSVAL_TYPE_OBJECT,  /* returnType.  Not relevant for setters. */
     194             :   false,  /* isInfallible. False in setters. */
     195             :   false,  /* isMovable.  Not relevant for setters. */
     196             :   false, /* isEliminatable.  Not relevant for setters. */
     197             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
     198             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
     199             :   false,  /* isTypedMethod.  Only relevant for methods. */
     200             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
     201             : };
     202             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
     203             : static_assert(0 < 1, "There is no slot for us");
     204             : 
     205             : static bool
     206           0 : _addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
     207             : {
     208           0 :   mozilla::dom::DOMImplementation* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::DOMImplementation>(obj);
     209             :   // We don't want to preserve if we don't have a wrapper, and we
     210             :   // obviously can't preserve if we're not initialized.
     211           0 :   if (self && self->GetWrapperPreserveColor()) {
     212           0 :     PreserveWrapper(self);
     213             :   }
     214           0 :   return true;
     215             : }
     216             : 
     217             : static void
     218           0 : _finalize(js::FreeOp* fop, JSObject* obj)
     219             : {
     220           0 :   mozilla::dom::DOMImplementation* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::DOMImplementation>(obj);
     221           0 :   if (self) {
     222           0 :     ClearWrapper(self, self, obj);
     223           0 :     AddForDeferredFinalization<mozilla::dom::DOMImplementation>(self);
     224             :   }
     225           0 : }
     226             : 
     227             : static void
     228           0 : _objectMoved(JSObject* obj, const JSObject* old)
     229             : {
     230           0 :   mozilla::dom::DOMImplementation* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::DOMImplementation>(obj);
     231           0 :   if (self) {
     232           0 :     UpdateWrapper(self, self, obj, old);
     233             :   }
     234           0 : }
     235             : 
     236             : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
     237             : #if defined(__clang__)
     238             : #pragma clang diagnostic push
     239             : #pragma clang diagnostic ignored "-Wmissing-braces"
     240             : #endif
     241             : static const JSFunctionSpec sMethods_specs[] = {
     242             :   JS_FNSPEC("hasFeature", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&hasFeature_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
     243             :   JS_FNSPEC("createDocumentType", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&createDocumentType_methodinfo), 3, JSPROP_ENUMERATE, nullptr),
     244             :   JS_FNSPEC("createDocument", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&createDocument_methodinfo), 2, JSPROP_ENUMERATE, nullptr),
     245             :   JS_FNSPEC("createHTMLDocument", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&createHTMLDocument_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
     246             :   JS_FS_END,
     247             :   JS_FNSPEC("QueryInterface", QueryInterface, nullptr, 1, 0, nullptr),
     248             :   JS_FS_END
     249             : };
     250             : #if defined(__clang__)
     251             : #pragma clang diagnostic pop
     252             : #endif
     253             : 
     254             : static PrefableDisablers sMethods_disablers5 = {
     255             :   true, false, 0, &WantsQueryInterface<mozilla::dom::DOMImplementation>::Enabled
     256             : };
     257             : 
     258             : // Can't be const because the pref-enabled boolean needs to be writable
     259             : static Prefable<const JSFunctionSpec> sMethods[] = {
     260             :   { nullptr, &sMethods_specs[0] },
     261             :   { &sMethods_disablers5, &sMethods_specs[5] },
     262             :   { nullptr, nullptr }
     263             : };
     264             : 
     265             : static_assert(2 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
     266             :     "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
     267             : static_assert(4 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
     268             :     "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
     269             : 
     270             : 
     271             : static uint16_t sNativeProperties_sortedPropertyIndices[5];
     272             : static PropertyInfo sNativeProperties_propertyInfos[5];
     273             : 
     274             : static const NativePropertiesN<1> sNativeProperties = {
     275             :   false, 0,
     276             :   false, 0,
     277             :   true,  0 /* sMethods */,
     278             :   false, 0,
     279             :   false, 0,
     280             :   false, 0,
     281             :   false, 0,
     282             :   -1,
     283             :   5,
     284             :   sNativeProperties_sortedPropertyIndices,
     285             :   {
     286             :     { sMethods, &sNativeProperties_propertyInfos[0] }
     287             :   }
     288             : };
     289             : static_assert(5 < 1ull << CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount),
     290             :     "We have a property info count that is oversized");
     291             : 
     292             : static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
     293             :   {
     294             :     "Function",
     295             :     JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
     296             :     &sBoringInterfaceObjectClassClassOps,
     297             :     JS_NULL_CLASS_SPEC,
     298             :     JS_NULL_CLASS_EXT,
     299             :     &sInterfaceObjectClassObjectOps
     300             :   },
     301             :   eInterface,
     302             :   true,
     303             :   prototypes::id::DOMImplementation,
     304             :   PrototypeTraits<prototypes::id::DOMImplementation>::Depth,
     305             :   sNativePropertyHooks,
     306             :   "function DOMImplementation() {\n    [native code]\n}",
     307             :   JS::GetRealmFunctionPrototype
     308             : };
     309             : 
     310             : static const DOMIfaceAndProtoJSClass sPrototypeClass = {
     311             :   {
     312             :     "DOMImplementationPrototype",
     313             :     JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),
     314             :     JS_NULL_CLASS_OPS,
     315             :     JS_NULL_CLASS_SPEC,
     316             :     JS_NULL_CLASS_EXT,
     317             :     JS_NULL_OBJECT_OPS
     318             :   },
     319             :   eInterfacePrototype,
     320             :   false,
     321             :   prototypes::id::DOMImplementation,
     322             :   PrototypeTraits<prototypes::id::DOMImplementation>::Depth,
     323             :   sNativePropertyHooks,
     324             :   "[object DOMImplementationPrototype]",
     325             :   JS::GetRealmObjectPrototype
     326             : };
     327             : 
     328             : JSObject*
     329           0 : DefineDOMInterface(JSContext* aCx, JS::Handle<JSObject*> aGlobal, JS::Handle<jsid> id, bool aDefineOnGlobal)
     330             : {
     331           0 :   return GetConstructorObjectHandle(aCx, aDefineOnGlobal);
     332             : }
     333             : 
     334             : static const js::ClassOps sClassOps = {
     335             :   _addProperty, /* addProperty */
     336             :   nullptr,               /* delProperty */
     337             :   nullptr,               /* getProperty */
     338             :   nullptr,               /* setProperty */
     339             :   nullptr,               /* enumerate */
     340             :   nullptr, /* newEnumerate */
     341             :   nullptr, /* resolve */
     342             :   nullptr, /* mayResolve */
     343             :   _finalize, /* finalize */
     344             :   nullptr, /* call */
     345             :   nullptr,               /* hasInstance */
     346             :   nullptr,               /* construct */
     347             :   nullptr, /* trace */
     348             : };
     349             : 
     350             : static const js::ClassExtension sClassExtension = {
     351             :   nullptr, /* weakmapKeyDelegateOp */
     352             :   _objectMoved /* objectMovedOp */
     353             : };
     354             : 
     355             : static const DOMJSClass sClass = {
     356             :   { "DOMImplementation",
     357             :     JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
     358             :     &sClassOps,
     359             :     JS_NULL_CLASS_SPEC,
     360             :     &sClassExtension,
     361             :     JS_NULL_OBJECT_OPS
     362             :   },
     363             :   { prototypes::id::DOMImplementation, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
     364             :   IsBaseOf<nsISupports, mozilla::dom::DOMImplementation >::value,
     365             :   sNativePropertyHooks,
     366             :   FindAssociatedGlobalForNative<mozilla::dom::DOMImplementation>::Get,
     367             :   GetProtoObjectHandle,
     368             :   GetCCParticipant<mozilla::dom::DOMImplementation>::Get()
     369             : };
     370             : static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
     371             :               "Must have the right minimal number of reserved slots.");
     372             : static_assert(1 >= 1,
     373             :               "Must have enough reserved slots.");
     374             : 
     375             : const JSClass*
     376           0 : GetJSClass()
     377             : {
     378           0 :   return sClass.ToJSClass();
     379             : }
     380             : 
     381             : bool
     382           0 : Wrap(JSContext* aCx, mozilla::dom::DOMImplementation* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
     383             : {
     384             :   MOZ_ASSERT(static_cast<mozilla::dom::DOMImplementation*>(aObject) ==
     385             :              reinterpret_cast<mozilla::dom::DOMImplementation*>(aObject),
     386             :              "Multiple inheritance for mozilla::dom::DOMImplementation is broken.");
     387           0 :   MOZ_ASSERT(ToSupportsIsCorrect(aObject));
     388           0 :   MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
     389           0 :   MOZ_ASSERT(!aCache->GetWrapper(),
     390             :              "You should probably not be using Wrap() directly; use "
     391             :              "GetOrCreateDOMReflector instead");
     392             : 
     393           0 :   MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
     394             :              "nsISupports must be on our primary inheritance chain");
     395             : 
     396           0 :   JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
     397           0 :   if (!global) {
     398           0 :     return false;
     399             :   }
     400           0 :   MOZ_ASSERT(JS_IsGlobalObject(global));
     401           0 :   MOZ_ASSERT(JS::ObjectIsNotGray(global));
     402             : 
     403             :   // That might have ended up wrapping us already, due to the wonders
     404             :   // of XBL.  Check for that, and bail out as needed.
     405           0 :   aReflector.set(aCache->GetWrapper());
     406           0 :   if (aReflector) {
     407             : #ifdef DEBUG
     408           0 :     binding_detail::AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
     409             : #endif // DEBUG
     410           0 :     return true;
     411             :   }
     412             : 
     413           0 :   JSAutoCompartment ac(aCx, global);
     414           0 :   JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
     415           0 :   if (!canonicalProto) {
     416           0 :     return false;
     417             :   }
     418           0 :   JS::Rooted<JSObject*> proto(aCx);
     419           0 :   if (aGivenProto) {
     420           0 :     proto = aGivenProto;
     421             :     // Unfortunately, while aGivenProto was in the compartment of aCx
     422             :     // coming in, we changed compartments to that of "parent" so may need
     423             :     // to wrap the proto here.
     424           0 :     if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
     425           0 :       if (!JS_WrapObject(aCx, &proto)) {
     426           0 :         return false;
     427             :       }
     428             :     }
     429             :   } else {
     430           0 :     proto = canonicalProto;
     431             :   }
     432             : 
     433           0 :   BindingJSObjectCreator<mozilla::dom::DOMImplementation> creator(aCx);
     434           0 :   creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
     435           0 :   if (!aReflector) {
     436           0 :     return false;
     437             :   }
     438             : 
     439           0 :   aCache->SetWrapper(aReflector);
     440           0 :   creator.InitializationSucceeded();
     441             : 
     442           0 :   MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
     443             :              aCache->GetWrapperPreserveColor() == aReflector);
     444             :   // If proto != canonicalProto, we have to preserve our wrapper;
     445             :   // otherwise we won't be able to properly recreate it later, since
     446             :   // we won't know what proto to use.  Note that we don't check
     447             :   // aGivenProto here, since it's entirely possible (and even
     448             :   // somewhat common) to have a non-null aGivenProto which is the
     449             :   // same as canonicalProto.
     450           0 :   if (proto != canonicalProto) {
     451           0 :     PreserveWrapper(aObject);
     452             :   }
     453             : 
     454           0 :   return true;
     455             : }
     456             : 
     457             : const NativePropertyHooks sNativePropertyHooks[] = { {
     458             :   nullptr,
     459             :   nullptr,
     460             :   nullptr,
     461             :   { sNativeProperties.Upcast(), nullptr },
     462             :   prototypes::id::DOMImplementation,
     463             :   constructors::id::DOMImplementation,
     464             :   nullptr,
     465             :   &DefaultXrayExpandoObjectClass
     466             : } };
     467             : 
     468             : void
     469           0 : CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
     470             : {
     471           0 :   JS::Rooted<JSObject*> parentProto(aCx, JS::GetRealmObjectPrototype(aCx));
     472           0 :   if (!parentProto) {
     473           0 :     return;
     474             :   }
     475             : 
     476           0 :   JS::Rooted<JSObject*> constructorProto(aCx, JS::GetRealmFunctionPrototype(aCx));
     477           0 :   if (!constructorProto) {
     478           0 :     return;
     479             :   }
     480             : 
     481             :   static bool sIdsInited = false;
     482           0 :   if (!sIdsInited && NS_IsMainThread()) {
     483           0 :     if (!InitIds(aCx, sNativeProperties.Upcast())) {
     484           0 :       return;
     485             :     }
     486           0 :     sIdsInited = true;
     487             :   }
     488             : 
     489           0 :   JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::DOMImplementation);
     490           0 :   JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::DOMImplementation);
     491           0 :   dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
     492             :                               &sPrototypeClass.mBase, protoCache,
     493             :                               constructorProto, &sInterfaceObjectClass.mBase, 0, nullptr,
     494             :                               interfaceCache,
     495             :                               sNativeProperties.Upcast(),
     496             :                               nullptr,
     497             :                               "DOMImplementation", aDefineOnGlobal,
     498             :                               nullptr,
     499           0 :                               false);
     500             : }
     501             : 
     502             : JS::Handle<JSObject*>
     503           0 : GetProtoObjectHandle(JSContext* aCx)
     504             : {
     505             :   /* Get the interface prototype object for this class.  This will create the
     506             :      object as needed. */
     507           0 :   bool aDefineOnGlobal = true;
     508             : 
     509             :   /* Make sure our global is sane.  Hopefully we can remove this sometime */
     510           0 :   JSObject* global = JS::CurrentGlobalOrNull(aCx);
     511           0 :   if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
     512           0 :     return nullptr;
     513             :   }
     514             : 
     515             :   /* Check to see whether the interface objects are already installed */
     516           0 :   ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
     517           0 :   if (!protoAndIfaceCache.HasEntryInSlot(prototypes::id::DOMImplementation)) {
     518           0 :     JS::Rooted<JSObject*> rootedGlobal(aCx, global);
     519           0 :     CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
     520             :   }
     521             : 
     522             :   /*
     523             :    * The object might _still_ be null, but that's OK.
     524             :    *
     525             :    * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
     526             :    * traced by TraceProtoAndIfaceCache() and its contents are never
     527             :    * changed after they have been set.
     528             :    *
     529             :    * Calling address() avoids the read read barrier that does gray
     530             :    * unmarking, but it's not possible for the object to be gray here.
     531             :    */
     532             : 
     533           0 :   const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(prototypes::id::DOMImplementation);
     534           0 :   MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
     535           0 :   return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
     536             : }
     537             : 
     538             : JS::Handle<JSObject*>
     539           0 : GetConstructorObjectHandle(JSContext* aCx, bool aDefineOnGlobal)
     540             : {
     541             :   /* Get the interface object for this class.  This will create the object as
     542             :      needed. */
     543             : 
     544             :   /* Make sure our global is sane.  Hopefully we can remove this sometime */
     545           0 :   JSObject* global = JS::CurrentGlobalOrNull(aCx);
     546           0 :   if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
     547           0 :     return nullptr;
     548             :   }
     549             : 
     550             :   /* Check to see whether the interface objects are already installed */
     551           0 :   ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
     552           0 :   if (!protoAndIfaceCache.HasEntryInSlot(constructors::id::DOMImplementation)) {
     553           0 :     JS::Rooted<JSObject*> rootedGlobal(aCx, global);
     554           0 :     CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
     555             :   }
     556             : 
     557             :   /*
     558             :    * The object might _still_ be null, but that's OK.
     559             :    *
     560             :    * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
     561             :    * traced by TraceProtoAndIfaceCache() and its contents are never
     562             :    * changed after they have been set.
     563             :    *
     564             :    * Calling address() avoids the read read barrier that does gray
     565             :    * unmarking, but it's not possible for the object to be gray here.
     566             :    */
     567             : 
     568           0 :   const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(constructors::id::DOMImplementation);
     569           0 :   MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
     570           0 :   return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
     571             : }
     572             : 
     573             : JSObject*
     574           0 : GetConstructorObject(JSContext* aCx)
     575             : {
     576           0 :   return GetConstructorObjectHandle(aCx);
     577             : }
     578             : 
     579             : } // namespace DOMImplementationBinding
     580             : 
     581             : 
     582             : 
     583             : } // namespace dom
     584             : } // namespace mozilla

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