LCOV - code coverage report
Current view: top level - obj-x86_64-pc-linux-gnu/dom/bindings - FileSystemDirectoryEntryBinding.cpp (source / functions) Hit Total Coverage
Test: output.info Lines: 0 164 0.0 %
Date: 2017-07-14 16:53:18 Functions: 0 13 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* THIS FILE IS AUTOGENERATED FROM FileSystemDirectoryEntry.webidl BY Codegen.py - DO NOT EDIT */
       2             : 
       3             : #include "FileSystemBinding.h"
       4             : #include "FileSystemDirectoryEntryBinding.h"
       5             : #include "FileSystemEntryBinding.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/FileSystemDirectoryEntry.h"
      11             : #include "mozilla/dom/FileSystemDirectoryReader.h"
      12             : #include "mozilla/dom/NonRefcountedDOMObject.h"
      13             : #include "mozilla/dom/Nullable.h"
      14             : #include "mozilla/dom/XrayExpandoClass.h"
      15             : 
      16             : namespace mozilla {
      17             : namespace dom {
      18             : 
      19             : namespace FileSystemDirectoryEntryBinding {
      20             : 
      21             : static_assert(IsRefcounted<NativeType>::value == IsRefcounted<FileSystemEntryBinding::NativeType>::value,
      22             :               "Can't inherit from an interface with a different ownership model.");
      23             : 
      24             : static bool
      25           0 : createReader(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::FileSystemDirectoryEntry* self, const JSJitMethodCallArgs& args)
      26             : {
      27           0 :   auto result(StrongOrRawPtr<mozilla::dom::FileSystemDirectoryReader>(self->CreateReader()));
      28           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
      29           0 :   if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
      30           0 :     MOZ_ASSERT(true || JS_IsExceptionPending(cx));
      31           0 :     return false;
      32             :   }
      33           0 :   return true;
      34             : }
      35             : 
      36             : static const JSJitInfo createReader_methodinfo = {
      37             :   { (JSJitGetterOp)createReader },
      38             :   { prototypes::id::FileSystemDirectoryEntry },
      39             :   { PrototypeTraits<prototypes::id::FileSystemDirectoryEntry>::Depth },
      40             :   JSJitInfo::Method,
      41             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
      42             :   JSVAL_TYPE_OBJECT,  /* returnType.  Not relevant for setters. */
      43             :   false,  /* isInfallible. False in setters. */
      44             :   false,  /* isMovable.  Not relevant for setters. */
      45             :   false, /* isEliminatable.  Not relevant for setters. */
      46             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
      47             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
      48             :   false,  /* isTypedMethod.  Only relevant for methods. */
      49             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
      50             : };
      51             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
      52             : static_assert(0 < 1, "There is no slot for us");
      53             : 
      54             : static bool
      55           0 : getFile(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::FileSystemDirectoryEntry* self, const JSJitMethodCallArgs& args)
      56             : {
      57           0 :   Optional<nsAString> arg0;
      58           0 :   binding_detail::FakeString arg0_holder;
      59           0 :   if (args.hasDefined(0)) {
      60           0 :     if (!ConvertJSValueToString(cx, args[0], eNull, eNull, arg0_holder)) {
      61           0 :       return false;
      62             :     }
      63           0 :     NormalizeUSVString(arg0_holder);
      64           0 :     arg0 = &arg0_holder;
      65             :   }
      66           0 :   binding_detail::FastFileSystemFlags arg1;
      67           0 :   if (!arg1.Init(cx, (args.hasDefined(1)) ? args[1] : JS::NullHandleValue,  "Argument 2 of FileSystemDirectoryEntry.getFile", false)) {
      68           0 :     return false;
      69             :   }
      70           0 :   Optional<OwningNonNull<FileSystemEntryCallback>> arg2;
      71           0 :   if (args.hasDefined(2)) {
      72           0 :     arg2.Construct();
      73           0 :     if (args[2].isObject()) {
      74             :       { // scope for tempRoot
      75           0 :         JS::Rooted<JSObject*> tempRoot(cx, &args[2].toObject());
      76           0 :         arg2.Value() = new FileSystemEntryCallback(cx, tempRoot, GetIncumbentGlobal());
      77             :       }
      78             :     } else {
      79           0 :       ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Argument 3 of FileSystemDirectoryEntry.getFile");
      80           0 :       return false;
      81             :     }
      82             :   }
      83           0 :   Optional<OwningNonNull<ErrorCallback>> arg3;
      84           0 :   if (args.hasDefined(3)) {
      85           0 :     arg3.Construct();
      86           0 :     if (args[3].isObject()) {
      87             :       { // scope for tempRoot
      88           0 :         JS::Rooted<JSObject*> tempRoot(cx, &args[3].toObject());
      89           0 :         arg3.Value() = new ErrorCallback(cx, tempRoot, GetIncumbentGlobal());
      90             :       }
      91             :     } else {
      92           0 :       ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Argument 4 of FileSystemDirectoryEntry.getFile");
      93           0 :       return false;
      94             :     }
      95             :   }
      96           0 :   self->GetFile(Constify(arg0), Constify(arg1), NonNullHelper(Constify(arg2)), NonNullHelper(Constify(arg3)));
      97           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
      98           0 :   args.rval().setUndefined();
      99           0 :   return true;
     100             : }
     101             : 
     102             : static const JSJitInfo getFile_methodinfo = {
     103             :   { (JSJitGetterOp)getFile },
     104             :   { prototypes::id::FileSystemDirectoryEntry },
     105             :   { PrototypeTraits<prototypes::id::FileSystemDirectoryEntry>::Depth },
     106             :   JSJitInfo::Method,
     107             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
     108             :   JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */
     109             :   false,  /* isInfallible. False in setters. */
     110             :   false,  /* isMovable.  Not relevant for setters. */
     111             :   false, /* isEliminatable.  Not relevant for setters. */
     112             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
     113             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
     114             :   false,  /* isTypedMethod.  Only relevant for methods. */
     115             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
     116             : };
     117             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
     118             : static_assert(0 < 1, "There is no slot for us");
     119             : 
     120             : static bool
     121           0 : getDirectory(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::FileSystemDirectoryEntry* self, const JSJitMethodCallArgs& args)
     122             : {
     123           0 :   Optional<nsAString> arg0;
     124           0 :   binding_detail::FakeString arg0_holder;
     125           0 :   if (args.hasDefined(0)) {
     126           0 :     if (!ConvertJSValueToString(cx, args[0], eNull, eNull, arg0_holder)) {
     127           0 :       return false;
     128             :     }
     129           0 :     NormalizeUSVString(arg0_holder);
     130           0 :     arg0 = &arg0_holder;
     131             :   }
     132           0 :   binding_detail::FastFileSystemFlags arg1;
     133           0 :   if (!arg1.Init(cx, (args.hasDefined(1)) ? args[1] : JS::NullHandleValue,  "Argument 2 of FileSystemDirectoryEntry.getDirectory", false)) {
     134           0 :     return false;
     135             :   }
     136           0 :   Optional<OwningNonNull<FileSystemEntryCallback>> arg2;
     137           0 :   if (args.hasDefined(2)) {
     138           0 :     arg2.Construct();
     139           0 :     if (args[2].isObject()) {
     140             :       { // scope for tempRoot
     141           0 :         JS::Rooted<JSObject*> tempRoot(cx, &args[2].toObject());
     142           0 :         arg2.Value() = new FileSystemEntryCallback(cx, tempRoot, GetIncumbentGlobal());
     143             :       }
     144             :     } else {
     145           0 :       ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Argument 3 of FileSystemDirectoryEntry.getDirectory");
     146           0 :       return false;
     147             :     }
     148             :   }
     149           0 :   Optional<OwningNonNull<ErrorCallback>> arg3;
     150           0 :   if (args.hasDefined(3)) {
     151           0 :     arg3.Construct();
     152           0 :     if (args[3].isObject()) {
     153             :       { // scope for tempRoot
     154           0 :         JS::Rooted<JSObject*> tempRoot(cx, &args[3].toObject());
     155           0 :         arg3.Value() = new ErrorCallback(cx, tempRoot, GetIncumbentGlobal());
     156             :       }
     157             :     } else {
     158           0 :       ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Argument 4 of FileSystemDirectoryEntry.getDirectory");
     159           0 :       return false;
     160             :     }
     161             :   }
     162           0 :   self->GetDirectory(Constify(arg0), Constify(arg1), NonNullHelper(Constify(arg2)), NonNullHelper(Constify(arg3)));
     163           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
     164           0 :   args.rval().setUndefined();
     165           0 :   return true;
     166             : }
     167             : 
     168             : static const JSJitInfo getDirectory_methodinfo = {
     169             :   { (JSJitGetterOp)getDirectory },
     170             :   { prototypes::id::FileSystemDirectoryEntry },
     171             :   { PrototypeTraits<prototypes::id::FileSystemDirectoryEntry>::Depth },
     172             :   JSJitInfo::Method,
     173             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
     174             :   JSVAL_TYPE_UNDEFINED,  /* 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 : _addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
     188             : {
     189           0 :   mozilla::dom::FileSystemDirectoryEntry* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::FileSystemDirectoryEntry>(obj);
     190             :   // We don't want to preserve if we don't have a wrapper, and we
     191             :   // obviously can't preserve if we're not initialized.
     192           0 :   if (self && self->GetWrapperPreserveColor()) {
     193           0 :     PreserveWrapper(self);
     194             :   }
     195           0 :   return true;
     196             : }
     197             : 
     198             : static void
     199           0 : _finalize(js::FreeOp* fop, JSObject* obj)
     200             : {
     201           0 :   mozilla::dom::FileSystemDirectoryEntry* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::FileSystemDirectoryEntry>(obj);
     202           0 :   if (self) {
     203           0 :     ClearWrapper(self, self, obj);
     204           0 :     AddForDeferredFinalization<mozilla::dom::FileSystemDirectoryEntry>(self);
     205             :   }
     206           0 : }
     207             : 
     208             : static void
     209           0 : _objectMoved(JSObject* obj, const JSObject* old)
     210             : {
     211           0 :   mozilla::dom::FileSystemDirectoryEntry* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::FileSystemDirectoryEntry>(obj);
     212           0 :   if (self) {
     213           0 :     UpdateWrapper(self, self, obj, old);
     214             :   }
     215           0 : }
     216             : 
     217             : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
     218             : #if defined(__clang__)
     219             : #pragma clang diagnostic push
     220             : #pragma clang diagnostic ignored "-Wmissing-braces"
     221             : #endif
     222             : static const JSFunctionSpec sMethods_specs[] = {
     223             :   JS_FNSPEC("createReader", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&createReader_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
     224             :   JS_FNSPEC("getFile", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&getFile_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
     225             :   JS_FNSPEC("getDirectory", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&getDirectory_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
     226             :   JS_FS_END
     227             : };
     228             : #if defined(__clang__)
     229             : #pragma clang diagnostic pop
     230             : #endif
     231             : 
     232             : 
     233             : // Can't be const because the pref-enabled boolean needs to be writable
     234             : static Prefable<const JSFunctionSpec> sMethods[] = {
     235             :   { nullptr, &sMethods_specs[0] },
     236             :   { nullptr, nullptr }
     237             : };
     238             : 
     239             : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
     240             :     "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
     241             : static_assert(3 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
     242             :     "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
     243             : 
     244             : 
     245             : static uint16_t sNativeProperties_sortedPropertyIndices[3];
     246             : static PropertyInfo sNativeProperties_propertyInfos[3];
     247             : 
     248             : static const NativePropertiesN<1> sNativeProperties = {
     249             :   false, 0,
     250             :   false, 0,
     251             :   true,  0 /* sMethods */,
     252             :   false, 0,
     253             :   false, 0,
     254             :   false, 0,
     255             :   false, 0,
     256             :   -1,
     257             :   3,
     258             :   sNativeProperties_sortedPropertyIndices,
     259             :   {
     260             :     { sMethods, &sNativeProperties_propertyInfos[0] }
     261             :   }
     262             : };
     263             : static_assert(3 < 1ull << CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount),
     264             :     "We have a property info count that is oversized");
     265             : 
     266             : static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
     267             :   {
     268             :     "Function",
     269             :     JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
     270             :     &sBoringInterfaceObjectClassClassOps,
     271             :     JS_NULL_CLASS_SPEC,
     272             :     JS_NULL_CLASS_EXT,
     273             :     &sInterfaceObjectClassObjectOps
     274             :   },
     275             :   eInterface,
     276             :   true,
     277             :   prototypes::id::FileSystemDirectoryEntry,
     278             :   PrototypeTraits<prototypes::id::FileSystemDirectoryEntry>::Depth,
     279             :   sNativePropertyHooks,
     280             :   "function FileSystemDirectoryEntry() {\n    [native code]\n}",
     281             :   FileSystemEntryBinding::GetConstructorObject
     282             : };
     283             : 
     284             : static const DOMIfaceAndProtoJSClass sPrototypeClass = {
     285             :   {
     286             :     "FileSystemDirectoryEntryPrototype",
     287             :     JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),
     288             :     JS_NULL_CLASS_OPS,
     289             :     JS_NULL_CLASS_SPEC,
     290             :     JS_NULL_CLASS_EXT,
     291             :     JS_NULL_OBJECT_OPS
     292             :   },
     293             :   eInterfacePrototype,
     294             :   false,
     295             :   prototypes::id::FileSystemDirectoryEntry,
     296             :   PrototypeTraits<prototypes::id::FileSystemDirectoryEntry>::Depth,
     297             :   sNativePropertyHooks,
     298             :   "[object FileSystemDirectoryEntryPrototype]",
     299             :   FileSystemEntryBinding::GetProtoObject
     300             : };
     301             : 
     302             : JSObject*
     303           0 : DefineDOMInterface(JSContext* aCx, JS::Handle<JSObject*> aGlobal, JS::Handle<jsid> id, bool aDefineOnGlobal)
     304             : {
     305           0 :   return GetConstructorObjectHandle(aCx, aDefineOnGlobal);
     306             : }
     307             : 
     308             : static const js::ClassOps sClassOps = {
     309             :   _addProperty, /* addProperty */
     310             :   nullptr,               /* delProperty */
     311             :   nullptr,               /* getProperty */
     312             :   nullptr,               /* setProperty */
     313             :   nullptr,               /* enumerate */
     314             :   nullptr, /* newEnumerate */
     315             :   nullptr, /* resolve */
     316             :   nullptr, /* mayResolve */
     317             :   _finalize, /* finalize */
     318             :   nullptr, /* call */
     319             :   nullptr,               /* hasInstance */
     320             :   nullptr,               /* construct */
     321             :   nullptr, /* trace */
     322             : };
     323             : 
     324             : static const js::ClassExtension sClassExtension = {
     325             :   nullptr, /* weakmapKeyDelegateOp */
     326             :   _objectMoved /* objectMovedOp */
     327             : };
     328             : 
     329             : static const DOMJSClass sClass = {
     330             :   { "FileSystemDirectoryEntry",
     331             :     JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
     332             :     &sClassOps,
     333             :     JS_NULL_CLASS_SPEC,
     334             :     &sClassExtension,
     335             :     JS_NULL_OBJECT_OPS
     336             :   },
     337             :   { prototypes::id::FileSystemEntry, prototypes::id::FileSystemDirectoryEntry, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
     338             :   IsBaseOf<nsISupports, mozilla::dom::FileSystemDirectoryEntry >::value,
     339             :   sNativePropertyHooks,
     340             :   FindAssociatedGlobalForNative<mozilla::dom::FileSystemDirectoryEntry>::Get,
     341             :   GetProtoObjectHandle,
     342             :   GetCCParticipant<mozilla::dom::FileSystemDirectoryEntry>::Get()
     343             : };
     344             : static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
     345             :               "Must have the right minimal number of reserved slots.");
     346             : static_assert(1 >= 1,
     347             :               "Must have enough reserved slots.");
     348             : 
     349             : const JSClass*
     350           0 : GetJSClass()
     351             : {
     352           0 :   return sClass.ToJSClass();
     353             : }
     354             : 
     355             : bool
     356           0 : Wrap(JSContext* aCx, mozilla::dom::FileSystemDirectoryEntry* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
     357             : {
     358             :   MOZ_ASSERT(static_cast<mozilla::dom::FileSystemDirectoryEntry*>(aObject) ==
     359             :              reinterpret_cast<mozilla::dom::FileSystemDirectoryEntry*>(aObject),
     360             :              "Multiple inheritance for mozilla::dom::FileSystemDirectoryEntry is broken.");
     361             :   MOZ_ASSERT(static_cast<mozilla::dom::FileSystemEntry*>(aObject) ==
     362             :              reinterpret_cast<mozilla::dom::FileSystemEntry*>(aObject),
     363             :              "Multiple inheritance for mozilla::dom::FileSystemEntry is broken.");
     364           0 :   MOZ_ASSERT(ToSupportsIsCorrect(aObject));
     365           0 :   MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
     366           0 :   MOZ_ASSERT(!aCache->GetWrapper(),
     367             :              "You should probably not be using Wrap() directly; use "
     368             :              "GetOrCreateDOMReflector instead");
     369             : 
     370           0 :   MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
     371             :              "nsISupports must be on our primary inheritance chain");
     372             : 
     373           0 :   JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
     374           0 :   if (!global) {
     375           0 :     return false;
     376             :   }
     377           0 :   MOZ_ASSERT(JS_IsGlobalObject(global));
     378           0 :   MOZ_ASSERT(JS::ObjectIsNotGray(global));
     379             : 
     380             :   // That might have ended up wrapping us already, due to the wonders
     381             :   // of XBL.  Check for that, and bail out as needed.
     382           0 :   aReflector.set(aCache->GetWrapper());
     383           0 :   if (aReflector) {
     384             : #ifdef DEBUG
     385           0 :     binding_detail::AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
     386             : #endif // DEBUG
     387           0 :     return true;
     388             :   }
     389             : 
     390           0 :   JSAutoCompartment ac(aCx, global);
     391           0 :   JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
     392           0 :   if (!canonicalProto) {
     393           0 :     return false;
     394             :   }
     395           0 :   JS::Rooted<JSObject*> proto(aCx);
     396           0 :   if (aGivenProto) {
     397           0 :     proto = aGivenProto;
     398             :     // Unfortunately, while aGivenProto was in the compartment of aCx
     399             :     // coming in, we changed compartments to that of "parent" so may need
     400             :     // to wrap the proto here.
     401           0 :     if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
     402           0 :       if (!JS_WrapObject(aCx, &proto)) {
     403           0 :         return false;
     404             :       }
     405             :     }
     406             :   } else {
     407           0 :     proto = canonicalProto;
     408             :   }
     409             : 
     410           0 :   BindingJSObjectCreator<mozilla::dom::FileSystemDirectoryEntry> creator(aCx);
     411           0 :   creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
     412           0 :   if (!aReflector) {
     413           0 :     return false;
     414             :   }
     415             : 
     416           0 :   aCache->SetWrapper(aReflector);
     417           0 :   creator.InitializationSucceeded();
     418             : 
     419           0 :   MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
     420             :              aCache->GetWrapperPreserveColor() == aReflector);
     421             :   // If proto != canonicalProto, we have to preserve our wrapper;
     422             :   // otherwise we won't be able to properly recreate it later, since
     423             :   // we won't know what proto to use.  Note that we don't check
     424             :   // aGivenProto here, since it's entirely possible (and even
     425             :   // somewhat common) to have a non-null aGivenProto which is the
     426             :   // same as canonicalProto.
     427           0 :   if (proto != canonicalProto) {
     428           0 :     PreserveWrapper(aObject);
     429             :   }
     430             : 
     431           0 :   return true;
     432             : }
     433             : 
     434             : const NativePropertyHooks sNativePropertyHooks[] = { {
     435             :   nullptr,
     436             :   nullptr,
     437             :   nullptr,
     438             :   { sNativeProperties.Upcast(), nullptr },
     439             :   prototypes::id::FileSystemDirectoryEntry,
     440             :   constructors::id::FileSystemDirectoryEntry,
     441             :   FileSystemEntryBinding::sNativePropertyHooks,
     442             :   &DefaultXrayExpandoObjectClass
     443             : } };
     444             : 
     445             : void
     446           0 : CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
     447             : {
     448           0 :   JS::Handle<JSObject*> parentProto(FileSystemEntryBinding::GetProtoObjectHandle(aCx));
     449           0 :   if (!parentProto) {
     450           0 :     return;
     451             :   }
     452             : 
     453           0 :   JS::Handle<JSObject*> constructorProto(FileSystemEntryBinding::GetConstructorObjectHandle(aCx));
     454           0 :   if (!constructorProto) {
     455           0 :     return;
     456             :   }
     457             : 
     458             :   static bool sIdsInited = false;
     459           0 :   if (!sIdsInited && NS_IsMainThread()) {
     460           0 :     if (!InitIds(aCx, sNativeProperties.Upcast())) {
     461           0 :       return;
     462             :     }
     463           0 :     sIdsInited = true;
     464             :   }
     465             : 
     466           0 :   JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::FileSystemDirectoryEntry);
     467           0 :   JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::FileSystemDirectoryEntry);
     468           0 :   dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
     469             :                               &sPrototypeClass.mBase, protoCache,
     470             :                               constructorProto, &sInterfaceObjectClass.mBase, 0, nullptr,
     471             :                               interfaceCache,
     472             :                               sNativeProperties.Upcast(),
     473             :                               nullptr,
     474             :                               "FileSystemDirectoryEntry", aDefineOnGlobal,
     475             :                               nullptr,
     476           0 :                               false);
     477             : }
     478             : 
     479             : JS::Handle<JSObject*>
     480           0 : GetProtoObjectHandle(JSContext* aCx)
     481             : {
     482             :   /* Get the interface prototype object for this class.  This will create the
     483             :      object as needed. */
     484           0 :   bool aDefineOnGlobal = true;
     485             : 
     486             :   /* Make sure our global is sane.  Hopefully we can remove this sometime */
     487           0 :   JSObject* global = JS::CurrentGlobalOrNull(aCx);
     488           0 :   if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
     489           0 :     return nullptr;
     490             :   }
     491             : 
     492             :   /* Check to see whether the interface objects are already installed */
     493           0 :   ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
     494           0 :   if (!protoAndIfaceCache.HasEntryInSlot(prototypes::id::FileSystemDirectoryEntry)) {
     495           0 :     JS::Rooted<JSObject*> rootedGlobal(aCx, global);
     496           0 :     CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
     497             :   }
     498             : 
     499             :   /*
     500             :    * The object might _still_ be null, but that's OK.
     501             :    *
     502             :    * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
     503             :    * traced by TraceProtoAndIfaceCache() and its contents are never
     504             :    * changed after they have been set.
     505             :    *
     506             :    * Calling address() avoids the read read barrier that does gray
     507             :    * unmarking, but it's not possible for the object to be gray here.
     508             :    */
     509             : 
     510           0 :   const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(prototypes::id::FileSystemDirectoryEntry);
     511           0 :   MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
     512           0 :   return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
     513             : }
     514             : 
     515             : JS::Handle<JSObject*>
     516           0 : GetConstructorObjectHandle(JSContext* aCx, bool aDefineOnGlobal)
     517             : {
     518             :   /* Get the interface object for this class.  This will create the object as
     519             :      needed. */
     520             : 
     521             :   /* Make sure our global is sane.  Hopefully we can remove this sometime */
     522           0 :   JSObject* global = JS::CurrentGlobalOrNull(aCx);
     523           0 :   if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
     524           0 :     return nullptr;
     525             :   }
     526             : 
     527             :   /* Check to see whether the interface objects are already installed */
     528           0 :   ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
     529           0 :   if (!protoAndIfaceCache.HasEntryInSlot(constructors::id::FileSystemDirectoryEntry)) {
     530           0 :     JS::Rooted<JSObject*> rootedGlobal(aCx, global);
     531           0 :     CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
     532             :   }
     533             : 
     534             :   /*
     535             :    * The object might _still_ be null, but that's OK.
     536             :    *
     537             :    * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
     538             :    * traced by TraceProtoAndIfaceCache() and its contents are never
     539             :    * changed after they have been set.
     540             :    *
     541             :    * Calling address() avoids the read read barrier that does gray
     542             :    * unmarking, but it's not possible for the object to be gray here.
     543             :    */
     544             : 
     545           0 :   const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(constructors::id::FileSystemDirectoryEntry);
     546           0 :   MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
     547           0 :   return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
     548             : }
     549             : 
     550             : JSObject*
     551           0 : GetConstructorObject(JSContext* aCx)
     552             : {
     553           0 :   return GetConstructorObjectHandle(aCx);
     554             : }
     555             : 
     556             : } // namespace FileSystemDirectoryEntryBinding
     557             : 
     558             : 
     559             : 
     560             : } // namespace dom
     561             : } // namespace mozilla

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