LCOV - code coverage report
Current view: top level - obj-x86_64-pc-linux-gnu/dom/bindings - CSSStyleDeclarationBinding.cpp (source / functions) Hit Total Coverage
Test: output.info Lines: 48 384 12.5 %
Date: 2017-07-14 16:53:18 Functions: 4 34 11.8 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* THIS FILE IS AUTOGENERATED FROM CSSStyleDeclaration.webidl BY Codegen.py - DO NOT EDIT */
       2             : 
       3             : #include "CSSStyleDeclarationBinding.h"
       4             : #include "WrapperFactory.h"
       5             : #include "mozilla/OwningNonNull.h"
       6             : #include "mozilla/css/Rule.h"
       7             : #include "mozilla/dom/BindingUtils.h"
       8             : #include "mozilla/dom/CSSValue.h"
       9             : #include "mozilla/dom/CustomElementRegistry.h"
      10             : #include "mozilla/dom/DOMJSClass.h"
      11             : #include "mozilla/dom/DOMJSProxyHandler.h"
      12             : #include "mozilla/dom/NonRefcountedDOMObject.h"
      13             : #include "mozilla/dom/Nullable.h"
      14             : #include "mozilla/dom/PrimitiveConversions.h"
      15             : #include "mozilla/dom/XrayExpandoClass.h"
      16             : #include "nsContentUtils.h"
      17             : #include "nsICSSDeclaration.h"
      18             : #include "nsISupports.h"
      19             : #include "xpcjsid.h"
      20             : 
      21             : namespace mozilla {
      22             : namespace dom {
      23             : 
      24             : namespace CSSStyleDeclarationBinding {
      25             : 
      26             : static bool
      27           0 : get_cssText(JSContext* cx, JS::Handle<JSObject*> obj, nsICSSDeclaration* self, JSJitGetterCallArgs args)
      28             : {
      29           0 :   DOMString result;
      30           0 :   self->GetCssText(result);
      31           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
      32           0 :   if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
      33           0 :     return false;
      34             :   }
      35           0 :   return true;
      36             : }
      37             : 
      38             : static bool
      39           0 : set_cssText(JSContext* cx, JS::Handle<JSObject*> obj, nsICSSDeclaration* self, JSJitSetterCallArgs args)
      40             : {
      41           0 :   binding_detail::FakeString arg0;
      42           0 :   if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
      43           0 :     return false;
      44             :   }
      45           0 :   CustomElementReactionsStack* reactionsStack = GetCustomElementReactionsStack(obj);
      46           0 :   Maybe<AutoCEReaction> ceReaction;
      47           0 :   if (reactionsStack) {
      48           0 :     ceReaction.emplace(reactionsStack);
      49             :   }
      50           0 :   binding_detail::FastErrorResult rv;
      51           0 :   self->SetCssText(NonNullHelper(Constify(arg0)), rv);
      52           0 :   if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
      53           0 :     return false;
      54             :   }
      55           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
      56             : 
      57           0 :   return true;
      58             : }
      59             : 
      60             : static const JSJitInfo cssText_getterinfo = {
      61             :   { (JSJitGetterOp)get_cssText },
      62             :   { prototypes::id::CSSStyleDeclaration },
      63             :   { PrototypeTraits<prototypes::id::CSSStyleDeclaration>::Depth },
      64             :   JSJitInfo::Getter,
      65             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
      66             :   JSVAL_TYPE_STRING,  /* returnType.  Not relevant for setters. */
      67             :   false,  /* isInfallible. False in setters. */
      68             :   false,  /* isMovable.  Not relevant for setters. */
      69             :   false, /* isEliminatable.  Not relevant for setters. */
      70             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
      71             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
      72             :   false,  /* isTypedMethod.  Only relevant for methods. */
      73             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
      74             : };
      75             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
      76             : static_assert(0 < 1, "There is no slot for us");
      77             : static const JSJitInfo cssText_setterinfo = {
      78             :   { (JSJitGetterOp)set_cssText },
      79             :   { prototypes::id::CSSStyleDeclaration },
      80             :   { PrototypeTraits<prototypes::id::CSSStyleDeclaration>::Depth },
      81             :   JSJitInfo::Setter,
      82             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
      83             :   JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */
      84             :   false,  /* isInfallible. False in setters. */
      85             :   false,  /* isMovable.  Not relevant for setters. */
      86             :   false, /* isEliminatable.  Not relevant for setters. */
      87             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
      88             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
      89             :   false,  /* isTypedMethod.  Only relevant for methods. */
      90             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
      91             : };
      92             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
      93             : static_assert(0 < 1, "There is no slot for us");
      94             : 
      95             : static bool
      96           0 : get_length(JSContext* cx, JS::Handle<JSObject*> obj, nsICSSDeclaration* self, JSJitGetterCallArgs args)
      97             : {
      98           0 :   uint32_t result(self->Length());
      99           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
     100           0 :   args.rval().setNumber(result);
     101           0 :   return true;
     102             : }
     103             : 
     104             : static const JSJitInfo length_getterinfo = {
     105             :   { (JSJitGetterOp)get_length },
     106             :   { prototypes::id::CSSStyleDeclaration },
     107             :   { PrototypeTraits<prototypes::id::CSSStyleDeclaration>::Depth },
     108             :   JSJitInfo::Getter,
     109             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
     110             :   JSVAL_TYPE_DOUBLE,  /* returnType.  Not relevant for setters. */
     111             :   true,  /* isInfallible. False in setters. */
     112             :   false,  /* isMovable.  Not relevant for setters. */
     113             :   false, /* isEliminatable.  Not relevant for setters. */
     114             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
     115             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
     116             :   false,  /* isTypedMethod.  Only relevant for methods. */
     117             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
     118             : };
     119             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
     120             : static_assert(0 < 1, "There is no slot for us");
     121             : 
     122             : static bool
     123           0 : item(JSContext* cx, JS::Handle<JSObject*> obj, nsICSSDeclaration* self, const JSJitMethodCallArgs& args)
     124             : {
     125           0 :   if (MOZ_UNLIKELY(args.length() < 1)) {
     126           0 :     return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "CSSStyleDeclaration.item");
     127             :   }
     128             :   uint32_t arg0;
     129           0 :   if (!ValueToPrimitive<uint32_t, eDefault>(cx, args[0], &arg0)) {
     130           0 :     return false;
     131             :   }
     132           0 :   DOMString result;
     133           0 :   self->Item(arg0, result);
     134           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
     135           0 :   if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
     136           0 :     return false;
     137             :   }
     138           0 :   return true;
     139             : }
     140             : 
     141             : static const JSJitInfo item_methodinfo = {
     142             :   { (JSJitGetterOp)item },
     143             :   { prototypes::id::CSSStyleDeclaration },
     144             :   { PrototypeTraits<prototypes::id::CSSStyleDeclaration>::Depth },
     145             :   JSJitInfo::Method,
     146             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
     147             :   JSVAL_TYPE_STRING,  /* returnType.  Not relevant for setters. */
     148             :   false,  /* isInfallible. False in setters. */
     149             :   false,  /* isMovable.  Not relevant for setters. */
     150             :   false, /* isEliminatable.  Not relevant for setters. */
     151             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
     152             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
     153             :   false,  /* isTypedMethod.  Only relevant for methods. */
     154             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
     155             : };
     156             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
     157             : static_assert(0 < 1, "There is no slot for us");
     158             : 
     159             : static bool
     160           0 : getPropertyValue(JSContext* cx, JS::Handle<JSObject*> obj, nsICSSDeclaration* self, const JSJitMethodCallArgs& args)
     161             : {
     162           0 :   if (MOZ_UNLIKELY(args.length() < 1)) {
     163           0 :     return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "CSSStyleDeclaration.getPropertyValue");
     164             :   }
     165           0 :   binding_detail::FakeString arg0;
     166           0 :   if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
     167           0 :     return false;
     168             :   }
     169           0 :   binding_detail::FastErrorResult rv;
     170           0 :   DOMString result;
     171           0 :   self->GetPropertyValue(NonNullHelper(Constify(arg0)), result, rv);
     172           0 :   if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
     173           0 :     return false;
     174             :   }
     175           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
     176           0 :   if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
     177           0 :     return false;
     178             :   }
     179           0 :   return true;
     180             : }
     181             : 
     182             : static const JSJitInfo getPropertyValue_methodinfo = {
     183             :   { (JSJitGetterOp)getPropertyValue },
     184             :   { prototypes::id::CSSStyleDeclaration },
     185             :   { PrototypeTraits<prototypes::id::CSSStyleDeclaration>::Depth },
     186             :   JSJitInfo::Method,
     187             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
     188             :   JSVAL_TYPE_STRING,  /* returnType.  Not relevant for setters. */
     189             :   false,  /* isInfallible. False in setters. */
     190             :   false,  /* isMovable.  Not relevant for setters. */
     191             :   false, /* isEliminatable.  Not relevant for setters. */
     192             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
     193             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
     194             :   false,  /* isTypedMethod.  Only relevant for methods. */
     195             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
     196             : };
     197             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
     198             : static_assert(0 < 1, "There is no slot for us");
     199             : 
     200             : static bool
     201           0 : getPropertyCSSValue(JSContext* cx, JS::Handle<JSObject*> obj, nsICSSDeclaration* self, const JSJitMethodCallArgs& args)
     202             : {
     203           0 :   if (MOZ_UNLIKELY(args.length() < 1)) {
     204           0 :     return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "CSSStyleDeclaration.getPropertyCSSValue");
     205             :   }
     206           0 :   binding_detail::FakeString arg0;
     207           0 :   if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
     208           0 :     return false;
     209             :   }
     210           0 :   binding_detail::FastErrorResult rv;
     211           0 :   auto result(StrongOrRawPtr<mozilla::dom::CSSValue>(self->GetPropertyCSSValue(NonNullHelper(Constify(arg0)), rv)));
     212           0 :   if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
     213           0 :     return false;
     214             :   }
     215           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
     216           0 :   if (!result) {
     217           0 :     args.rval().setNull();
     218           0 :     return true;
     219             :   }
     220           0 :   if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
     221           0 :     MOZ_ASSERT(true || JS_IsExceptionPending(cx));
     222           0 :     return false;
     223             :   }
     224           0 :   return true;
     225             : }
     226             : 
     227             : static const JSJitInfo getPropertyCSSValue_methodinfo = {
     228             :   { (JSJitGetterOp)getPropertyCSSValue },
     229             :   { prototypes::id::CSSStyleDeclaration },
     230             :   { PrototypeTraits<prototypes::id::CSSStyleDeclaration>::Depth },
     231             :   JSJitInfo::Method,
     232             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
     233             :   JSVAL_TYPE_UNKNOWN,  /* returnType.  Not relevant for setters. */
     234             :   false,  /* isInfallible. False in setters. */
     235             :   false,  /* isMovable.  Not relevant for setters. */
     236             :   false, /* isEliminatable.  Not relevant for setters. */
     237             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
     238             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
     239             :   false,  /* isTypedMethod.  Only relevant for methods. */
     240             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
     241             : };
     242             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
     243             : static_assert(0 < 1, "There is no slot for us");
     244             : 
     245             : static bool
     246           0 : getPropertyPriority(JSContext* cx, JS::Handle<JSObject*> obj, nsICSSDeclaration* self, const JSJitMethodCallArgs& args)
     247             : {
     248           0 :   if (MOZ_UNLIKELY(args.length() < 1)) {
     249           0 :     return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "CSSStyleDeclaration.getPropertyPriority");
     250             :   }
     251           0 :   binding_detail::FakeString arg0;
     252           0 :   if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
     253           0 :     return false;
     254             :   }
     255           0 :   DOMString result;
     256           0 :   self->GetPropertyPriority(NonNullHelper(Constify(arg0)), result);
     257           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
     258           0 :   if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
     259           0 :     return false;
     260             :   }
     261           0 :   return true;
     262             : }
     263             : 
     264             : static const JSJitInfo getPropertyPriority_methodinfo = {
     265             :   { (JSJitGetterOp)getPropertyPriority },
     266             :   { prototypes::id::CSSStyleDeclaration },
     267             :   { PrototypeTraits<prototypes::id::CSSStyleDeclaration>::Depth },
     268             :   JSJitInfo::Method,
     269             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
     270             :   JSVAL_TYPE_STRING,  /* returnType.  Not relevant for setters. */
     271             :   false,  /* isInfallible. False in setters. */
     272             :   false,  /* isMovable.  Not relevant for setters. */
     273             :   false, /* isEliminatable.  Not relevant for setters. */
     274             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
     275             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
     276             :   false,  /* isTypedMethod.  Only relevant for methods. */
     277             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
     278             : };
     279             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
     280             : static_assert(0 < 1, "There is no slot for us");
     281             : 
     282             : static bool
     283           0 : setProperty(JSContext* cx, JS::Handle<JSObject*> obj, nsICSSDeclaration* self, const JSJitMethodCallArgs& args)
     284             : {
     285           0 :   if (MOZ_UNLIKELY(args.length() < 2)) {
     286           0 :     return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "CSSStyleDeclaration.setProperty");
     287             :   }
     288           0 :   binding_detail::FakeString arg0;
     289           0 :   if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
     290           0 :     return false;
     291             :   }
     292           0 :   binding_detail::FakeString arg1;
     293           0 :   if (!ConvertJSValueToString(cx, args[1], eEmpty, eStringify, arg1)) {
     294           0 :     return false;
     295             :   }
     296           0 :   binding_detail::FakeString arg2;
     297           0 :   if (args.hasDefined(2)) {
     298           0 :     if (!ConvertJSValueToString(cx, args[2], eEmpty, eStringify, arg2)) {
     299           0 :       return false;
     300             :     }
     301             :   } else {
     302             :     static const char16_t data[] = { 0 };
     303           0 :     arg2.Rebind(data, ArrayLength(data) - 1);
     304             :   }
     305           0 :   CustomElementReactionsStack* reactionsStack = GetCustomElementReactionsStack(obj);
     306           0 :   Maybe<AutoCEReaction> ceReaction;
     307           0 :   if (reactionsStack) {
     308           0 :     ceReaction.emplace(reactionsStack);
     309             :   }
     310           0 :   binding_detail::FastErrorResult rv;
     311           0 :   self->SetProperty(NonNullHelper(Constify(arg0)), NonNullHelper(Constify(arg1)), NonNullHelper(Constify(arg2)), rv);
     312           0 :   if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
     313           0 :     return false;
     314             :   }
     315           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
     316           0 :   args.rval().setUndefined();
     317           0 :   return true;
     318             : }
     319             : 
     320             : static const JSJitInfo setProperty_methodinfo = {
     321             :   { (JSJitGetterOp)setProperty },
     322             :   { prototypes::id::CSSStyleDeclaration },
     323             :   { PrototypeTraits<prototypes::id::CSSStyleDeclaration>::Depth },
     324             :   JSJitInfo::Method,
     325             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
     326             :   JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */
     327             :   false,  /* isInfallible. False in setters. */
     328             :   false,  /* isMovable.  Not relevant for setters. */
     329             :   false, /* isEliminatable.  Not relevant for setters. */
     330             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
     331             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
     332             :   false,  /* isTypedMethod.  Only relevant for methods. */
     333             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
     334             : };
     335             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
     336             : static_assert(0 < 1, "There is no slot for us");
     337             : 
     338             : static bool
     339           9 : removeProperty(JSContext* cx, JS::Handle<JSObject*> obj, nsICSSDeclaration* self, const JSJitMethodCallArgs& args)
     340             : {
     341           9 :   if (MOZ_UNLIKELY(args.length() < 1)) {
     342           0 :     return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "CSSStyleDeclaration.removeProperty");
     343             :   }
     344          18 :   binding_detail::FakeString arg0;
     345           9 :   if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
     346           0 :     return false;
     347             :   }
     348           9 :   CustomElementReactionsStack* reactionsStack = GetCustomElementReactionsStack(obj);
     349          18 :   Maybe<AutoCEReaction> ceReaction;
     350           9 :   if (reactionsStack) {
     351           9 :     ceReaction.emplace(reactionsStack);
     352             :   }
     353          18 :   binding_detail::FastErrorResult rv;
     354          18 :   DOMString result;
     355           9 :   self->RemoveProperty(NonNullHelper(Constify(arg0)), result, rv);
     356           9 :   if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
     357           0 :     return false;
     358             :   }
     359           9 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
     360           9 :   if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
     361           0 :     return false;
     362             :   }
     363           9 :   return true;
     364             : }
     365             : 
     366             : static const JSJitInfo removeProperty_methodinfo = {
     367             :   { (JSJitGetterOp)removeProperty },
     368             :   { prototypes::id::CSSStyleDeclaration },
     369             :   { PrototypeTraits<prototypes::id::CSSStyleDeclaration>::Depth },
     370             :   JSJitInfo::Method,
     371             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
     372             :   JSVAL_TYPE_STRING,  /* returnType.  Not relevant for setters. */
     373             :   false,  /* isInfallible. False in setters. */
     374             :   false,  /* isMovable.  Not relevant for setters. */
     375             :   false, /* isEliminatable.  Not relevant for setters. */
     376             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
     377             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
     378             :   false,  /* isTypedMethod.  Only relevant for methods. */
     379             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
     380             : };
     381             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
     382             : static_assert(0 < 1, "There is no slot for us");
     383             : 
     384             : static bool
     385           0 : get_parentRule(JSContext* cx, JS::Handle<JSObject*> obj, nsICSSDeclaration* self, JSJitGetterCallArgs args)
     386             : {
     387           0 :   auto result(StrongOrRawPtr<mozilla::css::Rule>(self->GetParentRule()));
     388           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
     389           0 :   if (!result) {
     390           0 :     args.rval().setNull();
     391           0 :     return true;
     392             :   }
     393           0 :   if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
     394           0 :     MOZ_ASSERT(true || JS_IsExceptionPending(cx));
     395           0 :     return false;
     396             :   }
     397           0 :   return true;
     398             : }
     399             : 
     400             : static const JSJitInfo parentRule_getterinfo = {
     401             :   { (JSJitGetterOp)get_parentRule },
     402             :   { prototypes::id::CSSStyleDeclaration },
     403             :   { PrototypeTraits<prototypes::id::CSSStyleDeclaration>::Depth },
     404             :   JSJitInfo::Getter,
     405             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
     406             :   JSVAL_TYPE_UNKNOWN,  /* returnType.  Not relevant for setters. */
     407             :   false,  /* isInfallible. False in setters. */
     408             :   false,  /* isMovable.  Not relevant for setters. */
     409             :   false, /* isEliminatable.  Not relevant for setters. */
     410             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
     411             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
     412             :   false,  /* isTypedMethod.  Only relevant for methods. */
     413             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
     414             : };
     415             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
     416             : static_assert(0 < 1, "There is no slot for us");
     417             : 
     418             : static bool
     419           0 : getAuthoredPropertyValue(JSContext* cx, JS::Handle<JSObject*> obj, nsICSSDeclaration* self, const JSJitMethodCallArgs& args)
     420             : {
     421           0 :   if (MOZ_UNLIKELY(args.length() < 1)) {
     422           0 :     return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "CSSStyleDeclaration.getAuthoredPropertyValue");
     423             :   }
     424           0 :   binding_detail::FakeString arg0;
     425           0 :   if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
     426           0 :     return false;
     427             :   }
     428           0 :   binding_detail::FastErrorResult rv;
     429           0 :   DOMString result;
     430           0 :   self->GetAuthoredPropertyValue(NonNullHelper(Constify(arg0)), result, rv);
     431           0 :   if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
     432           0 :     return false;
     433             :   }
     434           0 :   MOZ_ASSERT(!JS_IsExceptionPending(cx));
     435           0 :   if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
     436           0 :     return false;
     437             :   }
     438           0 :   return true;
     439             : }
     440             : 
     441             : static const JSJitInfo getAuthoredPropertyValue_methodinfo = {
     442             :   { (JSJitGetterOp)getAuthoredPropertyValue },
     443             :   { prototypes::id::CSSStyleDeclaration },
     444             :   { PrototypeTraits<prototypes::id::CSSStyleDeclaration>::Depth },
     445             :   JSJitInfo::Method,
     446             :   JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
     447             :   JSVAL_TYPE_STRING,  /* returnType.  Not relevant for setters. */
     448             :   false,  /* isInfallible. False in setters. */
     449             :   false,  /* isMovable.  Not relevant for setters. */
     450             :   false, /* isEliminatable.  Not relevant for setters. */
     451             :   false, /* isAlwaysInSlot.  Only relevant for getters. */
     452             :   false, /* isLazilyCachedInSlot.  Only relevant for getters. */
     453             :   false,  /* isTypedMethod.  Only relevant for methods. */
     454             :   0   /* Reserved slot index, if we're stored in a slot, else 0. */
     455             : };
     456             : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
     457             : static_assert(0 < 1, "There is no slot for us");
     458             : 
     459             : static void
     460           0 : _objectMoved(JSObject* obj, const JSObject* old)
     461             : {
     462           0 :   nsICSSDeclaration* self = UnwrapPossiblyNotInitializedDOMObject<nsICSSDeclaration>(obj);
     463           0 :   if (self) {
     464           0 :     UpdateWrapper(self, self, obj, old);
     465             :   }
     466           0 : }
     467             : 
     468             : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
     469             : #if defined(__clang__)
     470             : #pragma clang diagnostic push
     471             : #pragma clang diagnostic ignored "-Wmissing-braces"
     472             : #endif
     473             : static const JSFunctionSpec sMethods_specs[] = {
     474             :   JS_FNSPEC("item", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&item_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
     475             :   JS_FNSPEC("getPropertyValue", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&getPropertyValue_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
     476             :   JS_FNSPEC("getPropertyCSSValue", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&getPropertyCSSValue_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
     477             :   JS_FNSPEC("getPropertyPriority", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&getPropertyPriority_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
     478             :   JS_FNSPEC("setProperty", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&setProperty_methodinfo), 2, JSPROP_ENUMERATE, nullptr),
     479             :   JS_FNSPEC("removeProperty", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&removeProperty_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
     480             :   JS_FS_END,
     481             :   JS_FNSPEC("QueryInterface", QueryInterface, nullptr, 1, 0, nullptr),
     482             :   JS_FS_END,
     483             :   JS_SYM_FNSPEC(iterator, nullptr, nullptr, 0, 0, "ArrayValues"),
     484             :   JS_FS_END
     485             : };
     486             : #if defined(__clang__)
     487             : #pragma clang diagnostic pop
     488             : #endif
     489             : 
     490             : static PrefableDisablers sMethods_disablers7 = {
     491             :   true, false, 0, &WantsQueryInterface<nsICSSDeclaration>::Enabled
     492             : };
     493             : 
     494             : // Can't be const because the pref-enabled boolean needs to be writable
     495             : static Prefable<const JSFunctionSpec> sMethods[] = {
     496             :   { nullptr, &sMethods_specs[0] },
     497             :   { &sMethods_disablers7, &sMethods_specs[7] },
     498             :   { nullptr, &sMethods_specs[9] },
     499             :   { nullptr, nullptr }
     500             : };
     501             : 
     502             : static_assert(3 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
     503             :     "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
     504             : static_assert(6 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
     505             :     "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
     506             : 
     507             : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
     508             : #if defined(__clang__)
     509             : #pragma clang diagnostic push
     510             : #pragma clang diagnostic ignored "-Wmissing-braces"
     511             : #endif
     512             : static const JSFunctionSpec sChromeMethods_specs[] = {
     513             :   JS_FNSPEC("getAuthoredPropertyValue", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&getAuthoredPropertyValue_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
     514             :   JS_FS_END
     515             : };
     516             : #if defined(__clang__)
     517             : #pragma clang diagnostic pop
     518             : #endif
     519             : 
     520             : 
     521             : // Can't be const because the pref-enabled boolean needs to be writable
     522             : static Prefable<const JSFunctionSpec> sChromeMethods[] = {
     523             :   { nullptr, &sChromeMethods_specs[0] },
     524             :   { nullptr, nullptr }
     525             : };
     526             : 
     527             : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
     528             :     "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
     529             : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
     530             :     "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
     531             : 
     532             : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
     533             : #if defined(__clang__)
     534             : #pragma clang diagnostic push
     535             : #pragma clang diagnostic ignored "-Wmissing-braces"
     536             : #endif
     537             : static const JSPropertySpec sAttributes_specs[] = {
     538             :   { "cssText", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &cssText_getterinfo, GenericBindingSetter, &cssText_setterinfo },
     539             :   { "length", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &length_getterinfo, nullptr, nullptr },
     540             :   { "parentRule", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &parentRule_getterinfo, nullptr, nullptr },
     541             :   { nullptr, 0, nullptr, nullptr, nullptr, nullptr }
     542             : };
     543             : #if defined(__clang__)
     544             : #pragma clang diagnostic pop
     545             : #endif
     546             : 
     547             : 
     548             : // Can't be const because the pref-enabled boolean needs to be writable
     549             : static Prefable<const JSPropertySpec> sAttributes[] = {
     550             :   { nullptr, &sAttributes_specs[0] },
     551             :   { nullptr, nullptr }
     552             : };
     553             : 
     554             : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
     555             :     "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
     556             : static_assert(3 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
     557             :     "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
     558             : 
     559             : 
     560             : static uint16_t sNativeProperties_sortedPropertyIndices[11];
     561             : static PropertyInfo sNativeProperties_propertyInfos[11];
     562             : 
     563             : static const NativePropertiesN<2> sNativeProperties = {
     564             :   false, 0,
     565             :   false, 0,
     566             :   true,  0 /* sMethods */,
     567             :   true,  1 /* sAttributes */,
     568             :   false, 0,
     569             :   false, 0,
     570             :   false, 0,
     571             :   -1,
     572             :   11,
     573             :   sNativeProperties_sortedPropertyIndices,
     574             :   {
     575             :     { sMethods, &sNativeProperties_propertyInfos[0] },
     576             :     { sAttributes, &sNativeProperties_propertyInfos[8] }
     577             :   }
     578             : };
     579             : static_assert(11 < 1ull << CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount),
     580             :     "We have a property info count that is oversized");
     581             : 
     582             : static uint16_t sChromeOnlyNativeProperties_sortedPropertyIndices[1];
     583             : static PropertyInfo sChromeOnlyNativeProperties_propertyInfos[1];
     584             : 
     585             : static const NativePropertiesN<1> sChromeOnlyNativeProperties = {
     586             :   false, 0,
     587             :   false, 0,
     588             :   true,  0 /* sChromeMethods */,
     589             :   false, 0,
     590             :   false, 0,
     591             :   false, 0,
     592             :   false, 0,
     593             :   -1,
     594             :   1,
     595             :   sChromeOnlyNativeProperties_sortedPropertyIndices,
     596             :   {
     597             :     { sChromeMethods, &sChromeOnlyNativeProperties_propertyInfos[0] }
     598             :   }
     599             : };
     600             : static_assert(1 < 1ull << CHAR_BIT * sizeof(sChromeOnlyNativeProperties.propertyInfoCount),
     601             :     "We have a property info count that is oversized");
     602             : 
     603             : static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
     604             :   {
     605             :     "Function",
     606             :     JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
     607             :     &sBoringInterfaceObjectClassClassOps,
     608             :     JS_NULL_CLASS_SPEC,
     609             :     JS_NULL_CLASS_EXT,
     610             :     &sInterfaceObjectClassObjectOps
     611             :   },
     612             :   eInterface,
     613             :   true,
     614             :   prototypes::id::CSSStyleDeclaration,
     615             :   PrototypeTraits<prototypes::id::CSSStyleDeclaration>::Depth,
     616             :   sNativePropertyHooks,
     617             :   "function CSSStyleDeclaration() {\n    [native code]\n}",
     618             :   JS::GetRealmFunctionPrototype
     619             : };
     620             : 
     621             : static const DOMIfaceAndProtoJSClass sPrototypeClass = {
     622             :   {
     623             :     "CSSStyleDeclarationPrototype",
     624             :     JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),
     625             :     JS_NULL_CLASS_OPS,
     626             :     JS_NULL_CLASS_SPEC,
     627             :     JS_NULL_CLASS_EXT,
     628             :     JS_NULL_OBJECT_OPS
     629             :   },
     630             :   eInterfacePrototype,
     631             :   false,
     632             :   prototypes::id::CSSStyleDeclaration,
     633             :   PrototypeTraits<prototypes::id::CSSStyleDeclaration>::Depth,
     634             :   sNativePropertyHooks,
     635             :   "[object CSSStyleDeclarationPrototype]",
     636             :   JS::GetRealmObjectPrototype
     637             : };
     638             : 
     639             : JSObject*
     640           0 : DefineDOMInterface(JSContext* aCx, JS::Handle<JSObject*> aGlobal, JS::Handle<jsid> id, bool aDefineOnGlobal)
     641             : {
     642           0 :   return GetConstructorObjectHandle(aCx, aDefineOnGlobal);
     643             : }
     644             : 
     645             : static_assert(IsBaseOf<nsISupports, nsICSSDeclaration >::value,
     646             :                   "We don't support non-nsISupports native classes for "
     647             :                   "proxy-based bindings yet");
     648             : 
     649             : 
     650             : class DOMProxyHandler : public mozilla::dom::DOMProxyHandler
     651             : {
     652             : public:
     653             :   explicit constexpr DOMProxyHandler()
     654             :   {
     655             :   }
     656             : 
     657             :   virtual bool
     658             :   getOwnPropDescriptor(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, bool ignoreNamedProps, JS::MutableHandle<JS::PropertyDescriptor> desc) const override;
     659             : 
     660             :   virtual bool
     661             :   defineProperty(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, JS::Handle<JS::PropertyDescriptor> desc, JS::ObjectOpResult& opresult, bool* defined) const override;
     662             : 
     663             :   using mozilla::dom::DOMProxyHandler::defineProperty;
     664             : 
     665             :   virtual bool
     666             :   ownPropNames(JSContext* cx, JS::Handle<JSObject*> proxy, unsigned flags, JS::AutoIdVector& props) const override;
     667             : 
     668             :   virtual bool
     669             :   hasOwn(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, bool* bp) const override;
     670             : 
     671             :   virtual bool
     672             :   get(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<JS::Value> receiver, JS::Handle<jsid> id, JS::MutableHandle<JS::Value> vp) const override;
     673             : 
     674             :   virtual const char*
     675             :   className(JSContext* cx, JS::Handle<JSObject*> proxy) const override;
     676             : 
     677             :   virtual bool
     678             :   finalizeInBackground(const JS::Value& priv) const override;
     679             : 
     680             :   virtual void
     681             :   finalize(JSFreeOp* fop, JSObject* proxy) const override;
     682             : 
     683             :   static const DOMProxyHandler*
     684             :   getInstance();
     685             : 
     686             :   virtual bool
     687             :   delete_(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, JS::ObjectOpResult& opresult) const override;
     688             : 
     689             :   virtual bool
     690             :   getElements(JSContext* cx, JS::Handle<JSObject*> proxy, uint32_t begin, uint32_t end, js::ElementAdder* adder) const override;
     691             : };
     692             : 
     693             : MOZ_ALWAYS_INLINE bool
     694           0 : IsProxy(JSObject* obj)
     695             : {
     696           0 :   return js::IsProxy(obj) && js::GetProxyHandler(obj) == DOMProxyHandler::getInstance();
     697             : }
     698             : 
     699             : MOZ_ALWAYS_INLINE nsICSSDeclaration*
     700           0 : UnwrapProxy(JSObject* obj)
     701             : {
     702           0 :   MOZ_ASSERT(js::IsProxy(obj));
     703           0 :   if (js::GetProxyHandler(obj) != DOMProxyHandler::getInstance()) {
     704           0 :     MOZ_ASSERT(xpc::WrapperFactory::IsXrayWrapper(obj));
     705           0 :     obj = js::UncheckedUnwrap(obj);
     706             :   }
     707           0 :   MOZ_ASSERT(IsProxy(obj));
     708           0 :   return static_cast<nsICSSDeclaration*>(js::GetProxyReservedSlot(obj, DOM_OBJECT_SLOT).toPrivate());
     709             : }
     710             : 
     711             : bool
     712           0 : DOMProxyHandler::getOwnPropDescriptor(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, bool ignoreNamedProps, JS::MutableHandle<JS::PropertyDescriptor> desc) const
     713             : {
     714           0 :   bool isXray = xpc::WrapperFactory::IsXrayWrapper(proxy);
     715           0 :   uint32_t index = GetArrayIndexFromId(cx, id);
     716           0 :   if (IsArrayIndex(index)) {
     717           0 :     nsICSSDeclaration* self = UnwrapProxy(proxy);
     718           0 :     bool found = false;
     719           0 :     DOMString result;
     720           0 :     self->IndexedGetter(index, found, result);
     721           0 :     MOZ_ASSERT(!JS_IsExceptionPending(cx));
     722             : 
     723           0 :     if (found) {
     724           0 :       if (!xpc::NonVoidStringToJsval(cx, result, desc.value())) {
     725           0 :         return false;
     726             :       }
     727           0 :       FillPropertyDescriptor(desc, proxy, true);
     728           0 :       return true;
     729             :     }
     730             :   }
     731             : 
     732           0 :   JS::Rooted<JSObject*> expando(cx);
     733           0 :   if (!isXray && (expando = GetExpandoObject(proxy))) {
     734           0 :     if (!JS_GetOwnPropertyDescriptorById(cx, expando, id, desc)) {
     735           0 :       return false;
     736             :     }
     737           0 :     if (desc.object()) {
     738             :       // Pretend the property lives on the wrapper.
     739           0 :       desc.object().set(proxy);
     740           0 :       return true;
     741             :     }
     742             :   }
     743             : 
     744           0 :   desc.object().set(nullptr);
     745           0 :   return true;
     746             : }
     747             : 
     748             : bool
     749           0 : DOMProxyHandler::defineProperty(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, JS::Handle<JS::PropertyDescriptor> desc, JS::ObjectOpResult& opresult, bool* defined) const
     750             : {
     751           0 :   if (IsArrayIndex(GetArrayIndexFromId(cx, id))) {
     752           0 :     *defined = true;
     753           0 :     return opresult.failNoIndexedSetter();
     754             :   }
     755           0 :   return mozilla::dom::DOMProxyHandler::defineProperty(cx, proxy, id, desc, opresult, defined);
     756             : }
     757             : 
     758             : 
     759             : bool
     760           0 : DOMProxyHandler::ownPropNames(JSContext* cx, JS::Handle<JSObject*> proxy, unsigned flags, JS::AutoIdVector& props) const
     761             : {
     762           0 :   bool isXray = xpc::WrapperFactory::IsXrayWrapper(proxy);
     763             : 
     764           0 :   uint32_t length = UnwrapProxy(proxy)->Length();
     765           0 :   MOZ_ASSERT(int32_t(length) >= 0);
     766           0 :   for (int32_t i = 0; i < int32_t(length); ++i) {
     767           0 :     if (!props.append(INT_TO_JSID(i))) {
     768           0 :       return false;
     769             :     }
     770             :   }
     771             : 
     772           0 :   JS::Rooted<JSObject*> expando(cx);
     773           0 :   if (!isXray && (expando = DOMProxyHandler::GetExpandoObject(proxy)) &&
     774           0 :       !js::GetPropertyKeys(cx, expando, flags, &props)) {
     775           0 :     return false;
     776             :   }
     777             : 
     778           0 :   return true;
     779             : }
     780             : 
     781             : bool
     782           0 : DOMProxyHandler::hasOwn(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, bool* bp) const
     783             : {
     784           0 :   MOZ_ASSERT(!xpc::WrapperFactory::IsXrayWrapper(proxy),
     785             :             "Should not have a XrayWrapper here");
     786             : 
     787           0 :   uint32_t index = GetArrayIndexFromId(cx, id);
     788           0 :   if (IsArrayIndex(index)) {
     789           0 :     bool found = false;
     790           0 :     nsICSSDeclaration* self = UnwrapProxy(proxy);
     791           0 :     DOMString result;
     792           0 :     self->IndexedGetter(index, found, result);
     793           0 :     MOZ_ASSERT(!JS_IsExceptionPending(cx));
     794             :     (void)result;
     795             : 
     796           0 :     *bp = found;
     797           0 :     return true;
     798             :   }
     799             : 
     800             : 
     801           0 :   JS::Rooted<JSObject*> expando(cx, GetExpandoObject(proxy));
     802           0 :   if (expando) {
     803           0 :     bool b = true;
     804           0 :     bool ok = JS_HasPropertyById(cx, expando, id, &b);
     805           0 :     *bp = !!b;
     806           0 :     if (!ok || *bp) {
     807           0 :       return ok;
     808             :     }
     809             :   }
     810             : 
     811           0 :   *bp = false;
     812           0 :   return true;
     813             : }
     814             : 
     815             : bool
     816           0 : DOMProxyHandler::get(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<JS::Value> receiver, JS::Handle<jsid> id, JS::MutableHandle<JS::Value> vp) const
     817             : {
     818           0 :   MOZ_ASSERT(!xpc::WrapperFactory::IsXrayWrapper(proxy),
     819             :               "Should not have a XrayWrapper here");
     820             : 
     821           0 :   uint32_t index = GetArrayIndexFromId(cx, id);
     822           0 :   if (IsArrayIndex(index)) {
     823           0 :     nsICSSDeclaration* self = UnwrapProxy(proxy);
     824           0 :     bool found = false;
     825           0 :     DOMString result;
     826           0 :     self->IndexedGetter(index, found, result);
     827           0 :     MOZ_ASSERT(!JS_IsExceptionPending(cx));
     828             : 
     829           0 :     if (found) {
     830           0 :       if (!xpc::NonVoidStringToJsval(cx, result, vp)) {
     831           0 :         return false;
     832             :       }
     833           0 :       return true;
     834             :     }
     835             :     // Even if we don't have this index, we don't forward the
     836             :     // get on to our expando object.
     837             :   } else {
     838             :     { // Scope for expando
     839           0 :       JS::Rooted<JSObject*> expando(cx, DOMProxyHandler::GetExpandoObject(proxy));
     840           0 :       if (expando) {
     841             :         bool hasProp;
     842           0 :         if (!JS_HasPropertyById(cx, expando, id, &hasProp)) {
     843           0 :           return false;
     844             :         }
     845             : 
     846           0 :         if (hasProp) {
     847             :           // Forward the get to the expando object, but our receiver is whatever our
     848             :           // receiver is.
     849           0 :           return JS_ForwardGetPropertyTo(cx, expando, id, receiver, vp);
     850             :         }
     851             :       }
     852             :     }
     853             :   }
     854             : 
     855             :   bool foundOnPrototype;
     856           0 :   if (!GetPropertyOnPrototype(cx, proxy, receiver, id, &foundOnPrototype, vp)) {
     857           0 :     return false;
     858             :   }
     859             : 
     860           0 :   if (foundOnPrototype) {
     861           0 :     return true;
     862             :   }
     863             : 
     864           0 :   vp.setUndefined();
     865           0 :   return true;
     866             : }
     867             : 
     868             : const char*
     869           0 : DOMProxyHandler::className(JSContext* cx, JS::Handle<JSObject*> proxy) const
     870             : {
     871           0 :   return "CSSStyleDeclaration";
     872             : }
     873             : 
     874             : bool
     875           0 : DOMProxyHandler::finalizeInBackground(const JS::Value& priv) const
     876             : {
     877           0 :   return false;
     878             : }
     879             : 
     880             : void
     881           0 : DOMProxyHandler::finalize(JSFreeOp* fop, JSObject* proxy) const
     882             : {
     883           0 :   nsICSSDeclaration* self = UnwrapPossiblyNotInitializedDOMObject<nsICSSDeclaration>(proxy);
     884           0 :   if (self) {
     885           0 :     ClearWrapper(self, self, proxy);
     886           0 :     AddForDeferredFinalization<nsICSSDeclaration>(self);
     887             :   }
     888           0 : }
     889             : 
     890             : const DOMProxyHandler*
     891           0 : DOMProxyHandler::getInstance()
     892             : {
     893             :   static const DOMProxyHandler instance;
     894           0 :   return &instance;
     895             : }
     896             : 
     897             : bool
     898           0 : DOMProxyHandler::delete_(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, JS::ObjectOpResult& opresult) const
     899             : {
     900           0 :   MOZ_ASSERT(!xpc::WrapperFactory::IsXrayWrapper(proxy),
     901             :             "Should not have a XrayWrapper here");
     902             : 
     903           0 :   uint32_t index = GetArrayIndexFromId(cx, id);
     904           0 :   if (IsArrayIndex(index)) {
     905             :     bool deleteSucceeded;
     906           0 :     bool found = false;
     907           0 :     nsICSSDeclaration* self = UnwrapProxy(proxy);
     908           0 :     DOMString result;
     909           0 :     self->IndexedGetter(index, found, result);
     910           0 :     MOZ_ASSERT(!JS_IsExceptionPending(cx));
     911             :     (void)result;
     912           0 :     deleteSucceeded = !found;
     913           0 :     return deleteSucceeded ? opresult.succeed() : opresult.failCantDelete();
     914             :   }
     915             : 
     916           0 :   return dom::DOMProxyHandler::delete_(cx, proxy, id, opresult);
     917             : }
     918             : 
     919             : bool
     920           0 : DOMProxyHandler::getElements(JSContext* cx, JS::Handle<JSObject*> proxy, uint32_t begin, uint32_t end, js::ElementAdder* adder) const
     921             : {
     922           0 :   JS::Rooted<JS::Value> temp(cx);
     923           0 :   MOZ_ASSERT(!xpc::WrapperFactory::IsXrayWrapper(proxy),
     924             :              "Should not have a XrayWrapper here");
     925             : 
     926           0 :   nsICSSDeclaration* self = UnwrapProxy(proxy);
     927           0 :   uint32_t length = self->Length();
     928             :   // Compute the end of the indices we'll get ourselves
     929           0 :   uint32_t ourEnd = std::max(begin, std::min(end, length));
     930             : 
     931           0 :   for (uint32_t index = begin; index < ourEnd; ++index) {
     932           0 :     bool found = false;
     933           0 :     DOMString result;
     934           0 :     self->IndexedGetter(index, found, result);
     935           0 :     MOZ_ASSERT(!JS_IsExceptionPending(cx));
     936             : 
     937           0 :     MOZ_ASSERT(found);
     938           0 :     if (!xpc::NonVoidStringToJsval(cx, result, &temp)) {
     939           0 :       return false;
     940             :     }
     941           0 :     if (!adder->append(cx, temp)) return false;
     942           0 :     continue;
     943             :   }
     944             : 
     945           0 :   if (end > ourEnd) {
     946           0 :     JS::Rooted<JSObject*> proto(cx);
     947           0 :     if (!js::GetObjectProto(cx, proxy, &proto)) {
     948           0 :       return false;
     949             :     }
     950           0 :     return js::GetElementsWithAdder(cx, proto, proxy, ourEnd, end, adder);
     951             :   }
     952             : 
     953           0 :   return true;
     954             : }
     955             : 
     956             : static const js::ClassExtension sClassExtension = PROXY_MAKE_EXT(
     957             :     _objectMoved
     958             : );
     959             : 
     960             : static const DOMJSClass sClass = {
     961             :   PROXY_CLASS_WITH_EXT("CSSStyleDeclaration",
     962             :                        JSCLASS_IS_DOMJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(1),
     963             :                        &sClassExtension),
     964             :   { prototypes::id::CSSStyleDeclaration, 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 },
     965             :   IsBaseOf<nsISupports, nsICSSDeclaration >::value,
     966             :   sNativePropertyHooks,
     967             :   FindAssociatedGlobalForNative<nsICSSDeclaration>::Get,
     968             :   GetProtoObjectHandle,
     969             :   GetCCParticipant<nsICSSDeclaration>::Get()
     970             : };
     971             : 
     972             : bool
     973           0 : Wrap(JSContext* aCx, nsICSSDeclaration* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
     974             : {
     975             :   MOZ_ASSERT(static_cast<nsICSSDeclaration*>(aObject) ==
     976             :              reinterpret_cast<nsICSSDeclaration*>(aObject),
     977             :              "Multiple inheritance for nsICSSDeclaration is broken.");
     978           0 :   MOZ_ASSERT(ToSupportsIsCorrect(aObject));
     979           0 :   MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
     980           0 :   MOZ_ASSERT(!aCache->GetWrapper(),
     981             :              "You should probably not be using Wrap() directly; use "
     982             :              "GetOrCreateDOMReflector instead");
     983             : 
     984           0 :   MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
     985             :              "nsISupports must be on our primary inheritance chain");
     986             : 
     987           0 :   JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
     988           0 :   if (!global) {
     989           0 :     return false;
     990             :   }
     991           0 :   MOZ_ASSERT(JS_IsGlobalObject(global));
     992           0 :   MOZ_ASSERT(JS::ObjectIsNotGray(global));
     993             : 
     994             :   // That might have ended up wrapping us already, due to the wonders
     995             :   // of XBL.  Check for that, and bail out as needed.
     996           0 :   aReflector.set(aCache->GetWrapper());
     997           0 :   if (aReflector) {
     998             : #ifdef DEBUG
     999           0 :     binding_detail::AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
    1000             : #endif // DEBUG
    1001           0 :     return true;
    1002             :   }
    1003             : 
    1004           0 :   JSAutoCompartment ac(aCx, global);
    1005           0 :   JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
    1006           0 :   if (!canonicalProto) {
    1007           0 :     return false;
    1008             :   }
    1009           0 :   JS::Rooted<JSObject*> proto(aCx);
    1010           0 :   if (aGivenProto) {
    1011           0 :     proto = aGivenProto;
    1012             :     // Unfortunately, while aGivenProto was in the compartment of aCx
    1013             :     // coming in, we changed compartments to that of "parent" so may need
    1014             :     // to wrap the proto here.
    1015           0 :     if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
    1016           0 :       if (!JS_WrapObject(aCx, &proto)) {
    1017           0 :         return false;
    1018             :       }
    1019             :     }
    1020             :   } else {
    1021           0 :     proto = canonicalProto;
    1022             :   }
    1023             : 
    1024           0 :   BindingJSObjectCreator<nsICSSDeclaration> creator(aCx);
    1025           0 :   JS::Rooted<JS::Value> expandoValue(aCx, JS::UndefinedValue());
    1026           0 :   creator.CreateProxyObject(aCx, &sClass.mBase, DOMProxyHandler::getInstance(),
    1027           0 :                             proto, aObject, expandoValue, aReflector);
    1028           0 :   if (!aReflector) {
    1029           0 :     return false;
    1030             :   }
    1031             : 
    1032             : 
    1033           0 :   aCache->SetWrapper(aReflector);
    1034           0 :   creator.InitializationSucceeded();
    1035             : 
    1036           0 :   MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
    1037             :              aCache->GetWrapperPreserveColor() == aReflector);
    1038             :   // If proto != canonicalProto, we have to preserve our wrapper;
    1039             :   // otherwise we won't be able to properly recreate it later, since
    1040             :   // we won't know what proto to use.  Note that we don't check
    1041             :   // aGivenProto here, since it's entirely possible (and even
    1042             :   // somewhat common) to have a non-null aGivenProto which is the
    1043             :   // same as canonicalProto.
    1044           0 :   if (proto != canonicalProto) {
    1045           0 :     PreserveWrapper(aObject);
    1046             :   }
    1047             : 
    1048           0 :   return true;
    1049             : }
    1050             : 
    1051             : static bool
    1052           0 : ResolveOwnProperty(JSContext* cx, JS::Handle<JSObject*> wrapper, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::MutableHandle<JS::PropertyDescriptor> desc)
    1053             : {
    1054           0 :   return js::GetProxyHandler(obj)->getOwnPropertyDescriptor(cx, wrapper, id, desc);
    1055             : }
    1056             : 
    1057             : static bool
    1058           0 : EnumerateOwnProperties(JSContext* cx, JS::Handle<JSObject*> wrapper, JS::Handle<JSObject*> obj, JS::AutoIdVector& props)
    1059             : {
    1060           0 :   return js::GetProxyHandler(obj)->ownPropertyKeys(cx, wrapper, props);
    1061             : }
    1062             : 
    1063             : const NativePropertyHooks sNativePropertyHooks[] = { {
    1064             :   ResolveOwnProperty,
    1065             :   EnumerateOwnProperties,
    1066             :   nullptr,
    1067             :   { sNativeProperties.Upcast(), sChromeOnlyNativeProperties.Upcast() },
    1068             :   prototypes::id::CSSStyleDeclaration,
    1069             :   constructors::id::CSSStyleDeclaration,
    1070             :   nullptr,
    1071             :   &DefaultXrayExpandoObjectClass
    1072             : } };
    1073             : 
    1074             : void
    1075           1 : CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
    1076             : {
    1077           2 :   JS::Rooted<JSObject*> parentProto(aCx, JS::GetRealmObjectPrototype(aCx));
    1078           1 :   if (!parentProto) {
    1079           0 :     return;
    1080             :   }
    1081             : 
    1082           2 :   JS::Rooted<JSObject*> constructorProto(aCx, JS::GetRealmFunctionPrototype(aCx));
    1083           1 :   if (!constructorProto) {
    1084           0 :     return;
    1085             :   }
    1086             : 
    1087             :   static bool sIdsInited = false;
    1088           1 :   if (!sIdsInited && NS_IsMainThread()) {
    1089           1 :     if (!InitIds(aCx, sNativeProperties.Upcast())) {
    1090           0 :       return;
    1091             :     }
    1092           1 :     if (!InitIds(aCx, sChromeOnlyNativeProperties.Upcast())) {
    1093           0 :       return;
    1094             :     }
    1095           1 :     sIdsInited = true;
    1096             :   }
    1097             : 
    1098           1 :   JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::CSSStyleDeclaration);
    1099           1 :   JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::CSSStyleDeclaration);
    1100           3 :   dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
    1101             :                               &sPrototypeClass.mBase, protoCache,
    1102             :                               constructorProto, &sInterfaceObjectClass.mBase, 0, nullptr,
    1103             :                               interfaceCache,
    1104             :                               sNativeProperties.Upcast(),
    1105           1 :                               nsContentUtils::ThreadsafeIsSystemCaller(aCx) ? sChromeOnlyNativeProperties.Upcast() : nullptr,
    1106             :                               "CSSStyleDeclaration", aDefineOnGlobal,
    1107             :                               nullptr,
    1108           1 :                               false);
    1109             : }
    1110             : 
    1111             : JS::Handle<JSObject*>
    1112           1 : GetProtoObjectHandle(JSContext* aCx)
    1113             : {
    1114             :   /* Get the interface prototype object for this class.  This will create the
    1115             :      object as needed. */
    1116           1 :   bool aDefineOnGlobal = true;
    1117             : 
    1118             :   /* Make sure our global is sane.  Hopefully we can remove this sometime */
    1119           1 :   JSObject* global = JS::CurrentGlobalOrNull(aCx);
    1120           1 :   if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
    1121           0 :     return nullptr;
    1122             :   }
    1123             : 
    1124             :   /* Check to see whether the interface objects are already installed */
    1125           1 :   ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
    1126           1 :   if (!protoAndIfaceCache.HasEntryInSlot(prototypes::id::CSSStyleDeclaration)) {
    1127           2 :     JS::Rooted<JSObject*> rootedGlobal(aCx, global);
    1128           1 :     CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
    1129             :   }
    1130             : 
    1131             :   /*
    1132             :    * The object might _still_ be null, but that's OK.
    1133             :    *
    1134             :    * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
    1135             :    * traced by TraceProtoAndIfaceCache() and its contents are never
    1136             :    * changed after they have been set.
    1137             :    *
    1138             :    * Calling address() avoids the read read barrier that does gray
    1139             :    * unmarking, but it's not possible for the object to be gray here.
    1140             :    */
    1141             : 
    1142           1 :   const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(prototypes::id::CSSStyleDeclaration);
    1143           1 :   MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
    1144           1 :   return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
    1145             : }
    1146             : 
    1147             : JSObject*
    1148           0 : GetProtoObject(JSContext* aCx)
    1149             : {
    1150           0 :   return GetProtoObjectHandle(aCx);
    1151             : }
    1152             : 
    1153             : JS::Handle<JSObject*>
    1154           1 : GetConstructorObjectHandle(JSContext* aCx, bool aDefineOnGlobal)
    1155             : {
    1156             :   /* Get the interface object for this class.  This will create the object as
    1157             :      needed. */
    1158             : 
    1159             :   /* Make sure our global is sane.  Hopefully we can remove this sometime */
    1160           1 :   JSObject* global = JS::CurrentGlobalOrNull(aCx);
    1161           1 :   if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
    1162           0 :     return nullptr;
    1163             :   }
    1164             : 
    1165             :   /* Check to see whether the interface objects are already installed */
    1166           1 :   ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
    1167           1 :   if (!protoAndIfaceCache.HasEntryInSlot(constructors::id::CSSStyleDeclaration)) {
    1168           0 :     JS::Rooted<JSObject*> rootedGlobal(aCx, global);
    1169           0 :     CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
    1170             :   }
    1171             : 
    1172             :   /*
    1173             :    * The object might _still_ be null, but that's OK.
    1174             :    *
    1175             :    * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
    1176             :    * traced by TraceProtoAndIfaceCache() and its contents are never
    1177             :    * changed after they have been set.
    1178             :    *
    1179             :    * Calling address() avoids the read read barrier that does gray
    1180             :    * unmarking, but it's not possible for the object to be gray here.
    1181             :    */
    1182             : 
    1183           1 :   const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(constructors::id::CSSStyleDeclaration);
    1184           1 :   MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
    1185           1 :   return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
    1186             : }
    1187             : 
    1188             : JSObject*
    1189           0 : GetConstructorObject(JSContext* aCx)
    1190             : {
    1191           0 :   return GetConstructorObjectHandle(aCx);
    1192             : }
    1193             : 
    1194             : } // namespace CSSStyleDeclarationBinding
    1195             : 
    1196             : 
    1197             : 
    1198             : } // namespace dom
    1199             : } // namespace mozilla

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