LCOV - code coverage report
Current view: top level - obj-x86_64-pc-linux-gnu/dom/bindings - HTMLLegendElementBinding.cpp (source / functions) Hit Total Coverage
Test: output.info Lines: 0 171 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 HTMLLegendElement.webidl BY Codegen.py - DO NOT EDIT */
       2             : 
       3             : #include "HTMLElementBinding.h"
       4             : #include "HTMLLegendElementBinding.h"
       5             : #include "WrapperFactory.h"
       6             : #include "mozilla/OwningNonNull.h"
       7             : #include "mozilla/dom/BindingUtils.h"
       8             : #include "mozilla/dom/CustomElementRegistry.h"
       9             : #include "mozilla/dom/DOMJSClass.h"
      10             : #include "mozilla/dom/HTMLFormElement.h"
      11             : #include "mozilla/dom/HTMLLegendElement.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 HTMLLegendElementBinding {
      20             : 
      21             : static_assert(IsRefcounted<NativeType>::value == IsRefcounted<HTMLElementBinding::NativeType>::value,
      22             :               "Can't inherit from an interface with a different ownership model.");
      23             : 
      24             : static bool
      25           0 : get_form(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLLegendElement* self, JSJitGetterCallArgs args)
      26             : {
      27           0 :   auto result(StrongOrRawPtr<mozilla::dom::HTMLFormElement>(self->GetForm()));
      28           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
      29           0 :   if (!result) {
      30           0 :     args.rval().setNull();
      31           0 :     return true;
      32             :   }
      33           0 :   if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
      34           0 :     MOZ_ASSERT(true || JS_IsExceptionPending(cx));
      35           0 :     return false;
      36             :   }
      37           0 :   return true;
      38             : }
      39             : 
      40             : static const JSJitInfo form_getterinfo = {
      41             :   { (JSJitGetterOp)get_form },
      42             :   { prototypes::id::HTMLLegendElement },
      43             :   { PrototypeTraits<prototypes::id::HTMLLegendElement>::Depth },
      44             :   JSJitInfo::Getter,
      45             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
      46             :   JSVAL_TYPE_UNKNOWN,  /* returnType.  Not relevant for setters. */
      47             :   false,  /* isInfallible. False in setters. */
      48             :   false,  /* isMovable.  Not relevant for setters. */
      49             :   false, /* isEliminatable.  Not relevant for setters. */
      50             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
      51             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
      52             :   false,  /* isTypedMethod.  Only relevant for methods. */
      53             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
      54             : };
      55             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
      56             : static_assert(0 < 1, "There is no slot for us");
      57             : 
      58             : static bool
      59           0 : get_align(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLLegendElement* self, JSJitGetterCallArgs args)
      60             : {
      61           0 :   DOMString result;
      62           0 :   self->GetAlign(result);
      63           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
      64           0 :   if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
      65           0 :     return false;
      66             :   }
      67           0 :   return true;
      68             : }
      69             : 
      70             : static bool
      71           0 : set_align(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLLegendElement* self, JSJitSetterCallArgs args)
      72             : {
      73           0 :   binding_detail::FakeString arg0;
      74           0 :   if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
      75           0 :     return false;
      76             :   }
      77           0 :   CustomElementReactionsStack* reactionsStack = GetCustomElementReactionsStack(obj);
      78           0 :   Maybe<AutoCEReaction> ceReaction;
      79           0 :   if (reactionsStack) {
      80           0 :     ceReaction.emplace(reactionsStack);
      81             :   }
      82           0 :   binding_detail::FastErrorResult rv;
      83           0 :   self->SetAlign(NonNullHelper(Constify(arg0)), rv);
      84           0 :   if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
      85           0 :     return false;
      86             :   }
      87           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
      88             : 
      89           0 :   return true;
      90             : }
      91             : 
      92             : static const JSJitInfo align_getterinfo = {
      93             :   { (JSJitGetterOp)get_align },
      94             :   { prototypes::id::HTMLLegendElement },
      95             :   { PrototypeTraits<prototypes::id::HTMLLegendElement>::Depth },
      96             :   JSJitInfo::Getter,
      97             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
      98             :   JSVAL_TYPE_STRING,  /* returnType.  Not relevant for setters. */
      99             :   false,  /* isInfallible. False in setters. */
     100             :   false,  /* isMovable.  Not relevant for setters. */
     101             :   false, /* isEliminatable.  Not relevant for setters. */
     102             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
     103             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
     104             :   false,  /* isTypedMethod.  Only relevant for methods. */
     105             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
     106             : };
     107             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
     108             : static_assert(0 < 1, "There is no slot for us");
     109             : static const JSJitInfo align_setterinfo = {
     110             :   { (JSJitGetterOp)set_align },
     111             :   { prototypes::id::HTMLLegendElement },
     112             :   { PrototypeTraits<prototypes::id::HTMLLegendElement>::Depth },
     113             :   JSJitInfo::Setter,
     114             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
     115             :   JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */
     116             :   false,  /* isInfallible. False in setters. */
     117             :   false,  /* isMovable.  Not relevant for setters. */
     118             :   false, /* isEliminatable.  Not relevant for setters. */
     119             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
     120             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
     121             :   false,  /* isTypedMethod.  Only relevant for methods. */
     122             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
     123             : };
     124             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
     125             : static_assert(0 < 1, "There is no slot for us");
     126             : 
     127             : static bool
     128           0 : _addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
     129             : {
     130           0 :   mozilla::dom::HTMLLegendElement* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::HTMLLegendElement>(obj);
     131             :   // We don't want to preserve if we don't have a wrapper, and we
     132             :   // obviously can't preserve if we're not initialized.
     133           0 :   if (self && self->GetWrapperPreserveColor()) {
     134           0 :     PreserveWrapper(self);
     135             :   }
     136           0 :   return true;
     137             : }
     138             : 
     139             : static void
     140           0 : _finalize(js::FreeOp* fop, JSObject* obj)
     141             : {
     142           0 :   mozilla::dom::HTMLLegendElement* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::HTMLLegendElement>(obj);
     143           0 :   if (self) {
     144           0 :     ClearWrapper(self, self, obj);
     145           0 :     AddForDeferredFinalization<mozilla::dom::HTMLLegendElement>(self);
     146             :   }
     147           0 : }
     148             : 
     149             : static void
     150           0 : _objectMoved(JSObject* obj, const JSObject* old)
     151             : {
     152           0 :   mozilla::dom::HTMLLegendElement* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::HTMLLegendElement>(obj);
     153           0 :   if (self) {
     154           0 :     UpdateWrapper(self, self, obj, old);
     155             :   }
     156           0 : }
     157             : 
     158             : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
     159             : #if defined(__clang__)
     160             : #pragma clang diagnostic push
     161             : #pragma clang diagnostic ignored "-Wmissing-braces"
     162             : #endif
     163             : static const JSPropertySpec sAttributes_specs[] = {
     164             :   { "form", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &form_getterinfo, nullptr, nullptr },
     165             :   { "align", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &align_getterinfo, GenericBindingSetter, &align_setterinfo },
     166             :   { nullptr, 0, nullptr, nullptr, nullptr, nullptr }
     167             : };
     168             : #if defined(__clang__)
     169             : #pragma clang diagnostic pop
     170             : #endif
     171             : 
     172             : 
     173             : // Can't be const because the pref-enabled boolean needs to be writable
     174             : static Prefable<const JSPropertySpec> sAttributes[] = {
     175             :   { nullptr, &sAttributes_specs[0] },
     176             :   { nullptr, nullptr }
     177             : };
     178             : 
     179             : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
     180             :     "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
     181             : static_assert(2 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
     182             :     "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
     183             : 
     184             : 
     185             : static uint16_t sNativeProperties_sortedPropertyIndices[2];
     186             : static PropertyInfo sNativeProperties_propertyInfos[2];
     187             : 
     188             : static const NativePropertiesN<1> sNativeProperties = {
     189             :   false, 0,
     190             :   false, 0,
     191             :   false, 0,
     192             :   true,  0 /* sAttributes */,
     193             :   false, 0,
     194             :   false, 0,
     195             :   false, 0,
     196             :   -1,
     197             :   2,
     198             :   sNativeProperties_sortedPropertyIndices,
     199             :   {
     200             :     { sAttributes, &sNativeProperties_propertyInfos[0] }
     201             :   }
     202             : };
     203             : static_assert(2 < 1ull << CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount),
     204             :     "We have a property info count that is oversized");
     205             : 
     206             : static bool
     207           0 : _constructor(JSContext* cx, unsigned argc, JS::Value* vp)
     208             : {
     209           0 :   JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
     210           0 :   JS::Rooted<JSObject*> obj(cx, &args.callee());
     211           0 :   if (!args.isConstructing()) {
     212             :     // XXXbz wish I could get the name from the callee instead of
     213             :     // Adding more relocations
     214           0 :     return ThrowConstructorWithoutNew(cx, "HTMLLegendElement");
     215             :   }
     216             : 
     217           0 :   GlobalObject global(cx, obj);
     218           0 :   if (global.Failed()) {
     219           0 :     return false;
     220             :   }
     221             : 
     222             :   // The newTarget might be a cross-compartment wrapper. Get the underlying object
     223             :   // so we can do the spec's object-identity checks.
     224           0 :   JS::Rooted<JSObject*> newTarget(cx, js::CheckedUnwrap(&args.newTarget().toObject()));
     225           0 :   if (!newTarget) {
     226           0 :     return ThrowErrorMessage(cx, MSG_ILLEGAL_CONSTRUCTOR);
     227             :   }
     228             : 
     229             :   // Step 2 of https://html.spec.whatwg.org/multipage/dom.html#htmlconstructor.
     230             :   // Enter the compartment of our underlying newTarget object, so we end
     231             :   // up comparing to the constructor object for our interface from that global.
     232             :   {
     233           0 :     JSAutoCompartment ac(cx, newTarget);
     234           0 :     JS::Handle<JSObject*> constructor(GetConstructorObjectHandle(cx));
     235           0 :     if (!constructor) {
     236           0 :       return false;
     237             :     }
     238           0 :     if (newTarget == constructor) {
     239           0 :       return ThrowErrorMessage(cx, MSG_ILLEGAL_CONSTRUCTOR);
     240             :     }
     241             :   }
     242             : 
     243           0 :   JS::Rooted<JSObject*> desiredProto(cx);
     244           0 :   if (!GetDesiredProto(cx, args, &desiredProto)) {
     245           0 :     return false;
     246             :   }
     247           0 :   if (!desiredProto) {
     248             :     // Step 7 of https://html.spec.whatwg.org/multipage/dom.html#htmlconstructor.
     249             :     // This fallback behavior is designed to match analogous behavior for the
     250             :     // JavaScript built-ins. So we enter the compartment of our underlying
     251             :     // newTarget object and fall back to the prototype object from that global.
     252             :     // XXX The spec says to use GetFunctionRealm(), which is not actually
     253             :     // the same thing as what we have here (e.g. in the case of scripted callable proxies
     254             :     // whose target is not same-compartment with the proxy, or bound functions, etc).
     255             :     // https://bugzilla.mozilla.org/show_bug.cgi?id=1317658
     256             :     {
     257           0 :       JSAutoCompartment ac(cx, newTarget);
     258           0 :       desiredProto = GetProtoObjectHandle(cx);
     259           0 :       if (!desiredProto) {
     260           0 :           return false;
     261             :       }
     262             :     }
     263             : 
     264             :     // desiredProto is in the compartment of the underlying newTarget object.
     265             :     // Wrap it into the context compartment.
     266           0 :     if (!JS_WrapObject(cx, &desiredProto)) {
     267           0 :       return false;
     268             :     }
     269             :   }
     270             : 
     271           0 :   bool objIsXray = xpc::WrapperFactory::IsXrayWrapper(obj);
     272           0 :   Maybe<JSAutoCompartment> ac;
     273           0 :   if (objIsXray) {
     274           0 :     obj = js::CheckedUnwrap(obj);
     275           0 :     if (!obj) {
     276           0 :       return false;
     277             :     }
     278           0 :     ac.emplace(cx, obj);
     279           0 :     if (!JS_WrapObject(cx, &desiredProto)) {
     280           0 :       return false;
     281             :     }
     282             :   }
     283           0 :   binding_detail::FastErrorResult rv;
     284           0 :   auto result(StrongOrRawPtr<mozilla::dom::HTMLLegendElement>(CreateHTMLElement(global, args, rv)));
     285           0 :   if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
     286           0 :     return false;
     287             :   }
     288           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
     289             :   static_assert(!IsPointer<decltype(result)>::value,
     290             :                 "NewObject implies that we need to keep the object alive with a strong reference.");
     291           0 :   if (!GetOrCreateDOMReflector(cx, result, args.rval(), desiredProto)) {
     292           0 :     MOZ_ASSERT(true || JS_IsExceptionPending(cx));
     293           0 :     return false;
     294             :   }
     295           0 :   return true;
     296             : }
     297             : 
     298             : static const js::ClassOps sInterfaceObjectClassOps = {
     299             :     nullptr,               /* addProperty */
     300             :     nullptr,               /* delProperty */
     301             :     nullptr,               /* getProperty */
     302             :     nullptr,               /* setProperty */
     303             :     nullptr,               /* enumerate */
     304             :     nullptr,               /* newEnumerate */
     305             :     nullptr,               /* resolve */
     306             :     nullptr,               /* mayResolve */
     307             :     nullptr,               /* finalize */
     308             :     _constructor, /* call */
     309             :     nullptr,               /* hasInstance */
     310             :     _constructor, /* construct */
     311             :     nullptr,               /* trace */
     312             : };
     313             : 
     314             : static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
     315             :   {
     316             :     "Function",
     317             :     JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
     318             :     &sInterfaceObjectClassOps,
     319             :     JS_NULL_CLASS_SPEC,
     320             :     JS_NULL_CLASS_EXT,
     321             :     &sInterfaceObjectClassObjectOps
     322             :   },
     323             :   eInterface,
     324             :   true,
     325             :   prototypes::id::HTMLLegendElement,
     326             :   PrototypeTraits<prototypes::id::HTMLLegendElement>::Depth,
     327             :   sNativePropertyHooks,
     328             :   "function HTMLLegendElement() {\n    [native code]\n}",
     329             :   HTMLElementBinding::GetConstructorObject
     330             : };
     331             : 
     332             : static const DOMIfaceAndProtoJSClass sPrototypeClass = {
     333             :   {
     334             :     "HTMLLegendElementPrototype",
     335             :     JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),
     336             :     JS_NULL_CLASS_OPS,
     337             :     JS_NULL_CLASS_SPEC,
     338             :     JS_NULL_CLASS_EXT,
     339             :     JS_NULL_OBJECT_OPS
     340             :   },
     341             :   eInterfacePrototype,
     342             :   false,
     343             :   prototypes::id::HTMLLegendElement,
     344             :   PrototypeTraits<prototypes::id::HTMLLegendElement>::Depth,
     345             :   sNativePropertyHooks,
     346             :   "[object HTMLLegendElementPrototype]",
     347             :   HTMLElementBinding::GetProtoObject
     348             : };
     349             : 
     350             : JSObject*
     351           0 : DefineDOMInterface(JSContext* aCx, JS::Handle<JSObject*> aGlobal, JS::Handle<jsid> id, bool aDefineOnGlobal)
     352             : {
     353           0 :   return GetConstructorObjectHandle(aCx, aDefineOnGlobal);
     354             : }
     355             : 
     356             : static const js::ClassOps sClassOps = {
     357             :   _addProperty, /* addProperty */
     358             :   nullptr,               /* delProperty */
     359             :   nullptr,               /* getProperty */
     360             :   nullptr,               /* setProperty */
     361             :   nullptr,               /* enumerate */
     362             :   nullptr, /* newEnumerate */
     363             :   nullptr, /* resolve */
     364             :   nullptr, /* mayResolve */
     365             :   _finalize, /* finalize */
     366             :   nullptr, /* call */
     367             :   nullptr,               /* hasInstance */
     368             :   nullptr,               /* construct */
     369             :   nullptr, /* trace */
     370             : };
     371             : 
     372             : static const js::ClassExtension sClassExtension = {
     373             :   nullptr, /* weakmapKeyDelegateOp */
     374             :   _objectMoved /* objectMovedOp */
     375             : };
     376             : 
     377             : static const DOMJSClass sClass = {
     378             :   { "HTMLLegendElement",
     379             :     JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
     380             :     &sClassOps,
     381             :     JS_NULL_CLASS_SPEC,
     382             :     &sClassExtension,
     383             :     JS_NULL_OBJECT_OPS
     384             :   },
     385             :   { prototypes::id::EventTarget, prototypes::id::Node, prototypes::id::Element, prototypes::id::HTMLElement, prototypes::id::HTMLLegendElement, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
     386             :   IsBaseOf<nsISupports, mozilla::dom::HTMLLegendElement >::value,
     387             :   sNativePropertyHooks,
     388             :   FindAssociatedGlobalForNative<mozilla::dom::HTMLLegendElement>::Get,
     389             :   GetProtoObjectHandle,
     390             :   GetCCParticipant<mozilla::dom::HTMLLegendElement>::Get()
     391             : };
     392             : static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
     393             :               "Must have the right minimal number of reserved slots.");
     394             : static_assert(1 >= 1,
     395             :               "Must have enough reserved slots.");
     396             : 
     397             : const JSClass*
     398           0 : GetJSClass()
     399             : {
     400           0 :   return sClass.ToJSClass();
     401             : }
     402             : 
     403             : bool
     404           0 : Wrap(JSContext* aCx, mozilla::dom::HTMLLegendElement* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
     405             : {
     406             :   MOZ_ASSERT(static_cast<mozilla::dom::HTMLLegendElement*>(aObject) ==
     407             :              reinterpret_cast<mozilla::dom::HTMLLegendElement*>(aObject),
     408             :              "Multiple inheritance for mozilla::dom::HTMLLegendElement is broken.");
     409             :   MOZ_ASSERT(static_cast<nsGenericHTMLElement*>(aObject) ==
     410             :              reinterpret_cast<nsGenericHTMLElement*>(aObject),
     411             :              "Multiple inheritance for nsGenericHTMLElement is broken.");
     412             :   MOZ_ASSERT(static_cast<mozilla::dom::Element*>(aObject) ==
     413             :              reinterpret_cast<mozilla::dom::Element*>(aObject),
     414             :              "Multiple inheritance for mozilla::dom::Element is broken.");
     415             :   MOZ_ASSERT(static_cast<nsINode*>(aObject) ==
     416             :              reinterpret_cast<nsINode*>(aObject),
     417             :              "Multiple inheritance for nsINode is broken.");
     418             :   MOZ_ASSERT(static_cast<mozilla::dom::EventTarget*>(aObject) ==
     419             :              reinterpret_cast<mozilla::dom::EventTarget*>(aObject),
     420             :              "Multiple inheritance for mozilla::dom::EventTarget is broken.");
     421           0 :   MOZ_ASSERT(ToSupportsIsCorrect(aObject));
     422           0 :   MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
     423           0 :   MOZ_ASSERT(!aCache->GetWrapper(),
     424             :              "You should probably not be using Wrap() directly; use "
     425             :              "GetOrCreateDOMReflector instead");
     426             : 
     427           0 :   MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
     428             :              "nsISupports must be on our primary inheritance chain");
     429             : 
     430           0 :   JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
     431           0 :   if (!global) {
     432           0 :     return false;
     433             :   }
     434           0 :   MOZ_ASSERT(JS_IsGlobalObject(global));
     435           0 :   MOZ_ASSERT(JS::ObjectIsNotGray(global));
     436             : 
     437             :   // That might have ended up wrapping us already, due to the wonders
     438             :   // of XBL.  Check for that, and bail out as needed.
     439           0 :   aReflector.set(aCache->GetWrapper());
     440           0 :   if (aReflector) {
     441             : #ifdef DEBUG
     442           0 :     binding_detail::AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
     443             : #endif // DEBUG
     444           0 :     return true;
     445             :   }
     446             : 
     447           0 :   JSAutoCompartment ac(aCx, global);
     448           0 :   JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
     449           0 :   if (!canonicalProto) {
     450           0 :     return false;
     451             :   }
     452           0 :   JS::Rooted<JSObject*> proto(aCx);
     453           0 :   if (aGivenProto) {
     454           0 :     proto = aGivenProto;
     455             :     // Unfortunately, while aGivenProto was in the compartment of aCx
     456             :     // coming in, we changed compartments to that of "parent" so may need
     457             :     // to wrap the proto here.
     458           0 :     if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
     459           0 :       if (!JS_WrapObject(aCx, &proto)) {
     460           0 :         return false;
     461             :       }
     462             :     }
     463             :   } else {
     464           0 :     proto = canonicalProto;
     465             :   }
     466             : 
     467           0 :   BindingJSObjectCreator<mozilla::dom::HTMLLegendElement> creator(aCx);
     468           0 :   creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
     469           0 :   if (!aReflector) {
     470           0 :     return false;
     471             :   }
     472             : 
     473           0 :   aCache->SetWrapper(aReflector);
     474           0 :   creator.InitializationSucceeded();
     475             : 
     476           0 :   MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
     477             :              aCache->GetWrapperPreserveColor() == aReflector);
     478             :   // If proto != canonicalProto, we have to preserve our wrapper;
     479             :   // otherwise we won't be able to properly recreate it later, since
     480             :   // we won't know what proto to use.  Note that we don't check
     481             :   // aGivenProto here, since it's entirely possible (and even
     482             :   // somewhat common) to have a non-null aGivenProto which is the
     483             :   // same as canonicalProto.
     484           0 :   if (proto != canonicalProto) {
     485           0 :     PreserveWrapper(aObject);
     486             :   }
     487             : 
     488           0 :   return true;
     489             : }
     490             : 
     491             : const NativePropertyHooks sNativePropertyHooks[] = { {
     492             :   nullptr,
     493             :   nullptr,
     494             :   nullptr,
     495             :   { sNativeProperties.Upcast(), nullptr },
     496             :   prototypes::id::HTMLLegendElement,
     497             :   constructors::id::HTMLLegendElement,
     498             :   HTMLElementBinding::sNativePropertyHooks,
     499             :   &DefaultXrayExpandoObjectClass
     500             : } };
     501             : 
     502             : void
     503           0 : CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
     504             : {
     505           0 :   JS::Handle<JSObject*> parentProto(HTMLElementBinding::GetProtoObjectHandle(aCx));
     506           0 :   if (!parentProto) {
     507           0 :     return;
     508             :   }
     509             : 
     510           0 :   JS::Handle<JSObject*> constructorProto(HTMLElementBinding::GetConstructorObjectHandle(aCx));
     511           0 :   if (!constructorProto) {
     512           0 :     return;
     513             :   }
     514             : 
     515             :   static bool sIdsInited = false;
     516           0 :   if (!sIdsInited && NS_IsMainThread()) {
     517           0 :     if (!InitIds(aCx, sNativeProperties.Upcast())) {
     518           0 :       return;
     519             :     }
     520           0 :     sIdsInited = true;
     521             :   }
     522             : 
     523           0 :   JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::HTMLLegendElement);
     524           0 :   JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::HTMLLegendElement);
     525           0 :   dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
     526             :                               &sPrototypeClass.mBase, protoCache,
     527             :                               constructorProto, &sInterfaceObjectClass.mBase, 0, nullptr,
     528             :                               interfaceCache,
     529             :                               sNativeProperties.Upcast(),
     530             :                               nullptr,
     531             :                               "HTMLLegendElement", aDefineOnGlobal,
     532             :                               nullptr,
     533           0 :                               false);
     534             : }
     535             : 
     536             : JS::Handle<JSObject*>
     537           0 : GetProtoObjectHandle(JSContext* aCx)
     538             : {
     539             :   /* Get the interface prototype object for this class.  This will create the
     540             :      object as needed. */
     541           0 :   bool aDefineOnGlobal = true;
     542             : 
     543             :   /* Make sure our global is sane.  Hopefully we can remove this sometime */
     544           0 :   JSObject* global = JS::CurrentGlobalOrNull(aCx);
     545           0 :   if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
     546           0 :     return nullptr;
     547             :   }
     548             : 
     549             :   /* Check to see whether the interface objects are already installed */
     550           0 :   ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
     551           0 :   if (!protoAndIfaceCache.HasEntryInSlot(prototypes::id::HTMLLegendElement)) {
     552           0 :     JS::Rooted<JSObject*> rootedGlobal(aCx, global);
     553           0 :     CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
     554             :   }
     555             : 
     556             :   /*
     557             :    * The object might _still_ be null, but that's OK.
     558             :    *
     559             :    * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
     560             :    * traced by TraceProtoAndIfaceCache() and its contents are never
     561             :    * changed after they have been set.
     562             :    *
     563             :    * Calling address() avoids the read read barrier that does gray
     564             :    * unmarking, but it's not possible for the object to be gray here.
     565             :    */
     566             : 
     567           0 :   const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(prototypes::id::HTMLLegendElement);
     568           0 :   MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
     569           0 :   return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
     570             : }
     571             : 
     572             : JS::Handle<JSObject*>
     573           0 : GetConstructorObjectHandle(JSContext* aCx, bool aDefineOnGlobal)
     574             : {
     575             :   /* Get the interface object for this class.  This will create the object as
     576             :      needed. */
     577             : 
     578             :   /* Make sure our global is sane.  Hopefully we can remove this sometime */
     579           0 :   JSObject* global = JS::CurrentGlobalOrNull(aCx);
     580           0 :   if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
     581           0 :     return nullptr;
     582             :   }
     583             : 
     584             :   /* Check to see whether the interface objects are already installed */
     585           0 :   ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
     586           0 :   if (!protoAndIfaceCache.HasEntryInSlot(constructors::id::HTMLLegendElement)) {
     587           0 :     JS::Rooted<JSObject*> rootedGlobal(aCx, global);
     588           0 :     CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
     589             :   }
     590             : 
     591             :   /*
     592             :    * The object might _still_ be null, but that's OK.
     593             :    *
     594             :    * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
     595             :    * traced by TraceProtoAndIfaceCache() and its contents are never
     596             :    * changed after they have been set.
     597             :    *
     598             :    * Calling address() avoids the read read barrier that does gray
     599             :    * unmarking, but it's not possible for the object to be gray here.
     600             :    */
     601             : 
     602           0 :   const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(constructors::id::HTMLLegendElement);
     603           0 :   MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
     604           0 :   return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
     605             : }
     606             : 
     607             : JSObject*
     608           0 : GetConstructorObject(JSContext* aCx)
     609             : {
     610           0 :   return GetConstructorObjectHandle(aCx);
     611             : }
     612             : 
     613             : } // namespace HTMLLegendElementBinding
     614             : 
     615             : 
     616             : 
     617             : } // namespace dom
     618             : } // namespace mozilla

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