Line data Source code
1 : /* THIS FILE IS AUTOGENERATED FROM CSSStyleRule.webidl BY Codegen.py - DO NOT EDIT */
2 :
3 : #include "CSSRuleBinding.h"
4 : #include "CSSStyleRuleBinding.h"
5 : #include "WrapperFactory.h"
6 : #include "mozilla/BindingStyleRule.h"
7 : #include "mozilla/OwningNonNull.h"
8 : #include "mozilla/dom/BindingUtils.h"
9 : #include "mozilla/dom/DOMJSClass.h"
10 : #include "mozilla/dom/NonRefcountedDOMObject.h"
11 : #include "mozilla/dom/XrayExpandoClass.h"
12 : #include "nsICSSDeclaration.h"
13 : #include "nsISupports.h"
14 : #include "xpcjsid.h"
15 :
16 : namespace mozilla {
17 : namespace dom {
18 :
19 : namespace CSSStyleRuleBinding {
20 :
21 : static_assert(IsRefcounted<NativeType>::value == IsRefcounted<CSSRuleBinding::NativeType>::value,
22 : "Can't inherit from an interface with a different ownership model.");
23 :
24 : static bool
25 0 : get_selectorText(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::BindingStyleRule* self, JSJitGetterCallArgs args)
26 : {
27 0 : DOMString result;
28 0 : self->GetSelectorText(result);
29 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
30 0 : if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
31 0 : return false;
32 : }
33 0 : return true;
34 : }
35 :
36 : static bool
37 0 : set_selectorText(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::BindingStyleRule* self, JSJitSetterCallArgs args)
38 : {
39 0 : binding_detail::FakeString arg0;
40 0 : if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
41 0 : return false;
42 : }
43 0 : self->SetSelectorText(NonNullHelper(Constify(arg0)));
44 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
45 :
46 0 : return true;
47 : }
48 :
49 : static const JSJitInfo selectorText_getterinfo = {
50 : { (JSJitGetterOp)get_selectorText },
51 : { prototypes::id::CSSStyleRule },
52 : { PrototypeTraits<prototypes::id::CSSStyleRule>::Depth },
53 : JSJitInfo::Getter,
54 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
55 : JSVAL_TYPE_STRING, /* returnType. Not relevant for setters. */
56 : false, /* isInfallible. False in setters. */
57 : false, /* isMovable. Not relevant for setters. */
58 : false, /* isEliminatable. Not relevant for setters. */
59 : false, /* isAlwaysInSlot. Only relevant for getters. */
60 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
61 : false, /* isTypedMethod. Only relevant for methods. */
62 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
63 : };
64 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
65 : static_assert(0 < 1, "There is no slot for us");
66 : static const JSJitInfo selectorText_setterinfo = {
67 : { (JSJitGetterOp)set_selectorText },
68 : { prototypes::id::CSSStyleRule },
69 : { PrototypeTraits<prototypes::id::CSSStyleRule>::Depth },
70 : JSJitInfo::Setter,
71 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
72 : JSVAL_TYPE_UNDEFINED, /* returnType. Not relevant for setters. */
73 : false, /* isInfallible. False in setters. */
74 : false, /* isMovable. Not relevant for setters. */
75 : false, /* isEliminatable. Not relevant for setters. */
76 : false, /* isAlwaysInSlot. Only relevant for getters. */
77 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
78 : false, /* isTypedMethod. Only relevant for methods. */
79 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
80 : };
81 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
82 : static_assert(0 < 1, "There is no slot for us");
83 :
84 : static bool
85 0 : get_style(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::BindingStyleRule* self, JSJitGetterCallArgs args)
86 : {
87 0 : auto result(StrongOrRawPtr<nsICSSDeclaration>(self->Style()));
88 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
89 0 : if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
90 0 : MOZ_ASSERT(true || JS_IsExceptionPending(cx));
91 0 : return false;
92 : }
93 0 : return true;
94 : }
95 :
96 : static bool
97 0 : set_style(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::BindingStyleRule* self, JSJitSetterCallArgs args)
98 : {
99 0 : JS::Rooted<JS::Value> v(cx);
100 0 : if (!JS_GetProperty(cx, obj, "style", &v)) {
101 0 : return false;
102 : }
103 :
104 0 : if (!v.isObject()) {
105 0 : return ThrowErrorMessage(cx, MSG_NOT_OBJECT, "CSSStyleRule.style");
106 : }
107 :
108 0 : JS::Rooted<JSObject*> targetObj(cx, &v.toObject());
109 0 : return JS_SetProperty(cx, targetObj, "cssText", args[0]);
110 : }
111 :
112 : static const JSJitInfo style_getterinfo = {
113 : { (JSJitGetterOp)get_style },
114 : { prototypes::id::CSSStyleRule },
115 : { PrototypeTraits<prototypes::id::CSSStyleRule>::Depth },
116 : JSJitInfo::Getter,
117 : JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
118 : JSVAL_TYPE_OBJECT, /* returnType. Not relevant for setters. */
119 : false, /* isInfallible. False in setters. */
120 : true, /* isMovable. Not relevant for setters. */
121 : true, /* isEliminatable. Not relevant for setters. */
122 : false, /* isAlwaysInSlot. Only relevant for getters. */
123 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
124 : false, /* isTypedMethod. Only relevant for methods. */
125 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
126 : };
127 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
128 : static_assert(0 < 1, "There is no slot for us");
129 : static const JSJitInfo style_setterinfo = {
130 : { (JSJitGetterOp)set_style },
131 : { prototypes::id::CSSStyleRule },
132 : { PrototypeTraits<prototypes::id::CSSStyleRule>::Depth },
133 : JSJitInfo::Setter,
134 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
135 : JSVAL_TYPE_UNDEFINED, /* returnType. Not relevant for setters. */
136 : false, /* isInfallible. False in setters. */
137 : false, /* isMovable. Not relevant for setters. */
138 : false, /* isEliminatable. Not relevant for setters. */
139 : false, /* isAlwaysInSlot. Only relevant for getters. */
140 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
141 : false, /* isTypedMethod. Only relevant for methods. */
142 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
143 : };
144 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
145 : static_assert(0 < 1, "There is no slot for us");
146 :
147 : static bool
148 0 : _addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
149 : {
150 0 : mozilla::BindingStyleRule* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::BindingStyleRule>(obj);
151 : // We don't want to preserve if we don't have a wrapper, and we
152 : // obviously can't preserve if we're not initialized.
153 0 : if (self && self->GetWrapperPreserveColor()) {
154 0 : PreserveWrapper(self);
155 : }
156 0 : return true;
157 : }
158 :
159 : static void
160 0 : _finalize(js::FreeOp* fop, JSObject* obj)
161 : {
162 0 : mozilla::BindingStyleRule* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::BindingStyleRule>(obj);
163 0 : if (self) {
164 0 : ClearWrapper(self, self, obj);
165 0 : AddForDeferredFinalization<mozilla::BindingStyleRule>(self);
166 : }
167 0 : }
168 :
169 : static void
170 0 : _objectMoved(JSObject* obj, const JSObject* old)
171 : {
172 0 : mozilla::BindingStyleRule* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::BindingStyleRule>(obj);
173 0 : if (self) {
174 0 : UpdateWrapper(self, self, obj, old);
175 : }
176 0 : }
177 :
178 : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
179 : #if defined(__clang__)
180 : #pragma clang diagnostic push
181 : #pragma clang diagnostic ignored "-Wmissing-braces"
182 : #endif
183 : static const JSFunctionSpec sMethods_specs[] = {
184 : JS_FNSPEC("QueryInterface", QueryInterface, nullptr, 1, 0, nullptr),
185 : JS_FS_END
186 : };
187 : #if defined(__clang__)
188 : #pragma clang diagnostic pop
189 : #endif
190 :
191 : static PrefableDisablers sMethods_disablers0 = {
192 : true, false, 0, &WantsQueryInterface<mozilla::BindingStyleRule>::Enabled
193 : };
194 :
195 : // Can't be const because the pref-enabled boolean needs to be writable
196 : static Prefable<const JSFunctionSpec> sMethods[] = {
197 : { &sMethods_disablers0, &sMethods_specs[0] },
198 : { nullptr, nullptr }
199 : };
200 :
201 : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
202 : "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
203 : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
204 : "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
205 :
206 : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
207 : #if defined(__clang__)
208 : #pragma clang diagnostic push
209 : #pragma clang diagnostic ignored "-Wmissing-braces"
210 : #endif
211 : static const JSPropertySpec sAttributes_specs[] = {
212 : { "selectorText", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &selectorText_getterinfo, GenericBindingSetter, &selectorText_setterinfo },
213 : { "style", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &style_getterinfo, GenericBindingSetter, &style_setterinfo },
214 : { nullptr, 0, nullptr, nullptr, nullptr, nullptr }
215 : };
216 : #if defined(__clang__)
217 : #pragma clang diagnostic pop
218 : #endif
219 :
220 :
221 : // Can't be const because the pref-enabled boolean needs to be writable
222 : static Prefable<const JSPropertySpec> sAttributes[] = {
223 : { nullptr, &sAttributes_specs[0] },
224 : { nullptr, nullptr }
225 : };
226 :
227 : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
228 : "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
229 : static_assert(2 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
230 : "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
231 :
232 :
233 : static uint16_t sNativeProperties_sortedPropertyIndices[3];
234 : static PropertyInfo sNativeProperties_propertyInfos[3];
235 :
236 : static const NativePropertiesN<2> sNativeProperties = {
237 : false, 0,
238 : false, 0,
239 : true, 0 /* sMethods */,
240 : true, 1 /* sAttributes */,
241 : false, 0,
242 : false, 0,
243 : false, 0,
244 : -1,
245 : 3,
246 : sNativeProperties_sortedPropertyIndices,
247 : {
248 : { sMethods, &sNativeProperties_propertyInfos[0] },
249 : { sAttributes, &sNativeProperties_propertyInfos[1] }
250 : }
251 : };
252 : static_assert(3 < 1ull << CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount),
253 : "We have a property info count that is oversized");
254 :
255 : static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
256 : {
257 : "Function",
258 : JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
259 : &sBoringInterfaceObjectClassClassOps,
260 : JS_NULL_CLASS_SPEC,
261 : JS_NULL_CLASS_EXT,
262 : &sInterfaceObjectClassObjectOps
263 : },
264 : eInterface,
265 : true,
266 : prototypes::id::CSSStyleRule,
267 : PrototypeTraits<prototypes::id::CSSStyleRule>::Depth,
268 : sNativePropertyHooks,
269 : "function CSSStyleRule() {\n [native code]\n}",
270 : CSSRuleBinding::GetConstructorObject
271 : };
272 :
273 : static const DOMIfaceAndProtoJSClass sPrototypeClass = {
274 : {
275 : "CSSStyleRulePrototype",
276 : JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),
277 : JS_NULL_CLASS_OPS,
278 : JS_NULL_CLASS_SPEC,
279 : JS_NULL_CLASS_EXT,
280 : JS_NULL_OBJECT_OPS
281 : },
282 : eInterfacePrototype,
283 : false,
284 : prototypes::id::CSSStyleRule,
285 : PrototypeTraits<prototypes::id::CSSStyleRule>::Depth,
286 : sNativePropertyHooks,
287 : "[object CSSStyleRulePrototype]",
288 : CSSRuleBinding::GetProtoObject
289 : };
290 :
291 : JSObject*
292 0 : DefineDOMInterface(JSContext* aCx, JS::Handle<JSObject*> aGlobal, JS::Handle<jsid> id, bool aDefineOnGlobal)
293 : {
294 0 : return GetConstructorObjectHandle(aCx, aDefineOnGlobal);
295 : }
296 :
297 : static const js::ClassOps sClassOps = {
298 : _addProperty, /* addProperty */
299 : nullptr, /* delProperty */
300 : nullptr, /* getProperty */
301 : nullptr, /* setProperty */
302 : nullptr, /* enumerate */
303 : nullptr, /* newEnumerate */
304 : nullptr, /* resolve */
305 : nullptr, /* mayResolve */
306 : _finalize, /* finalize */
307 : nullptr, /* call */
308 : nullptr, /* hasInstance */
309 : nullptr, /* construct */
310 : nullptr, /* trace */
311 : };
312 :
313 : static const js::ClassExtension sClassExtension = {
314 : nullptr, /* weakmapKeyDelegateOp */
315 : _objectMoved /* objectMovedOp */
316 : };
317 :
318 : static const DOMJSClass sClass = {
319 : { "CSSStyleRule",
320 : JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
321 : &sClassOps,
322 : JS_NULL_CLASS_SPEC,
323 : &sClassExtension,
324 : JS_NULL_OBJECT_OPS
325 : },
326 : { prototypes::id::CSSRule, prototypes::id::CSSStyleRule, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
327 : IsBaseOf<nsISupports, mozilla::BindingStyleRule >::value,
328 : sNativePropertyHooks,
329 : FindAssociatedGlobalForNative<mozilla::BindingStyleRule>::Get,
330 : GetProtoObjectHandle,
331 : GetCCParticipant<mozilla::BindingStyleRule>::Get()
332 : };
333 : static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
334 : "Must have the right minimal number of reserved slots.");
335 : static_assert(1 >= 1,
336 : "Must have enough reserved slots.");
337 :
338 : const JSClass*
339 0 : GetJSClass()
340 : {
341 0 : return sClass.ToJSClass();
342 : }
343 :
344 : bool
345 0 : Wrap(JSContext* aCx, mozilla::BindingStyleRule* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
346 : {
347 : MOZ_ASSERT(static_cast<mozilla::BindingStyleRule*>(aObject) ==
348 : reinterpret_cast<mozilla::BindingStyleRule*>(aObject),
349 : "Multiple inheritance for mozilla::BindingStyleRule is broken.");
350 : MOZ_ASSERT(static_cast<mozilla::css::Rule*>(aObject) ==
351 : reinterpret_cast<mozilla::css::Rule*>(aObject),
352 : "Multiple inheritance for mozilla::css::Rule is broken.");
353 0 : MOZ_ASSERT(ToSupportsIsCorrect(aObject));
354 0 : MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
355 0 : MOZ_ASSERT(!aCache->GetWrapper(),
356 : "You should probably not be using Wrap() directly; use "
357 : "GetOrCreateDOMReflector instead");
358 :
359 0 : MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
360 : "nsISupports must be on our primary inheritance chain");
361 :
362 0 : JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
363 0 : if (!global) {
364 0 : return false;
365 : }
366 0 : MOZ_ASSERT(JS_IsGlobalObject(global));
367 0 : MOZ_ASSERT(JS::ObjectIsNotGray(global));
368 :
369 : // That might have ended up wrapping us already, due to the wonders
370 : // of XBL. Check for that, and bail out as needed.
371 0 : aReflector.set(aCache->GetWrapper());
372 0 : if (aReflector) {
373 : #ifdef DEBUG
374 0 : binding_detail::AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
375 : #endif // DEBUG
376 0 : return true;
377 : }
378 :
379 0 : JSAutoCompartment ac(aCx, global);
380 0 : JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
381 0 : if (!canonicalProto) {
382 0 : return false;
383 : }
384 0 : JS::Rooted<JSObject*> proto(aCx);
385 0 : if (aGivenProto) {
386 0 : proto = aGivenProto;
387 : // Unfortunately, while aGivenProto was in the compartment of aCx
388 : // coming in, we changed compartments to that of "parent" so may need
389 : // to wrap the proto here.
390 0 : if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
391 0 : if (!JS_WrapObject(aCx, &proto)) {
392 0 : return false;
393 : }
394 : }
395 : } else {
396 0 : proto = canonicalProto;
397 : }
398 :
399 0 : BindingJSObjectCreator<mozilla::BindingStyleRule> creator(aCx);
400 0 : creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
401 0 : if (!aReflector) {
402 0 : return false;
403 : }
404 :
405 0 : aCache->SetWrapper(aReflector);
406 0 : creator.InitializationSucceeded();
407 :
408 0 : MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
409 : aCache->GetWrapperPreserveColor() == aReflector);
410 : // If proto != canonicalProto, we have to preserve our wrapper;
411 : // otherwise we won't be able to properly recreate it later, since
412 : // we won't know what proto to use. Note that we don't check
413 : // aGivenProto here, since it's entirely possible (and even
414 : // somewhat common) to have a non-null aGivenProto which is the
415 : // same as canonicalProto.
416 0 : if (proto != canonicalProto) {
417 0 : PreserveWrapper(aObject);
418 : }
419 :
420 0 : return true;
421 : }
422 :
423 : const NativePropertyHooks sNativePropertyHooks[] = { {
424 : nullptr,
425 : nullptr,
426 : nullptr,
427 : { sNativeProperties.Upcast(), nullptr },
428 : prototypes::id::CSSStyleRule,
429 : constructors::id::CSSStyleRule,
430 : CSSRuleBinding::sNativePropertyHooks,
431 : &DefaultXrayExpandoObjectClass
432 : } };
433 :
434 : void
435 0 : CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
436 : {
437 0 : JS::Handle<JSObject*> parentProto(CSSRuleBinding::GetProtoObjectHandle(aCx));
438 0 : if (!parentProto) {
439 0 : return;
440 : }
441 :
442 0 : JS::Handle<JSObject*> constructorProto(CSSRuleBinding::GetConstructorObjectHandle(aCx));
443 0 : if (!constructorProto) {
444 0 : return;
445 : }
446 :
447 : static bool sIdsInited = false;
448 0 : if (!sIdsInited && NS_IsMainThread()) {
449 0 : if (!InitIds(aCx, sNativeProperties.Upcast())) {
450 0 : return;
451 : }
452 0 : sIdsInited = true;
453 : }
454 :
455 0 : JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::CSSStyleRule);
456 0 : JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::CSSStyleRule);
457 0 : dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
458 : &sPrototypeClass.mBase, protoCache,
459 : constructorProto, &sInterfaceObjectClass.mBase, 0, nullptr,
460 : interfaceCache,
461 : sNativeProperties.Upcast(),
462 : nullptr,
463 : "CSSStyleRule", aDefineOnGlobal,
464 : nullptr,
465 0 : false);
466 : }
467 :
468 : JS::Handle<JSObject*>
469 0 : GetProtoObjectHandle(JSContext* aCx)
470 : {
471 : /* Get the interface prototype object for this class. This will create the
472 : object as needed. */
473 0 : bool aDefineOnGlobal = true;
474 :
475 : /* Make sure our global is sane. Hopefully we can remove this sometime */
476 0 : JSObject* global = JS::CurrentGlobalOrNull(aCx);
477 0 : if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
478 0 : return nullptr;
479 : }
480 :
481 : /* Check to see whether the interface objects are already installed */
482 0 : ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
483 0 : if (!protoAndIfaceCache.HasEntryInSlot(prototypes::id::CSSStyleRule)) {
484 0 : JS::Rooted<JSObject*> rootedGlobal(aCx, global);
485 0 : CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
486 : }
487 :
488 : /*
489 : * The object might _still_ be null, but that's OK.
490 : *
491 : * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
492 : * traced by TraceProtoAndIfaceCache() and its contents are never
493 : * changed after they have been set.
494 : *
495 : * Calling address() avoids the read read barrier that does gray
496 : * unmarking, but it's not possible for the object to be gray here.
497 : */
498 :
499 0 : const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(prototypes::id::CSSStyleRule);
500 0 : MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
501 0 : return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
502 : }
503 :
504 : JS::Handle<JSObject*>
505 0 : GetConstructorObjectHandle(JSContext* aCx, bool aDefineOnGlobal)
506 : {
507 : /* Get the interface object for this class. This will create the object as
508 : needed. */
509 :
510 : /* Make sure our global is sane. Hopefully we can remove this sometime */
511 0 : JSObject* global = JS::CurrentGlobalOrNull(aCx);
512 0 : if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
513 0 : return nullptr;
514 : }
515 :
516 : /* Check to see whether the interface objects are already installed */
517 0 : ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
518 0 : if (!protoAndIfaceCache.HasEntryInSlot(constructors::id::CSSStyleRule)) {
519 0 : JS::Rooted<JSObject*> rootedGlobal(aCx, global);
520 0 : CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
521 : }
522 :
523 : /*
524 : * The object might _still_ be null, but that's OK.
525 : *
526 : * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
527 : * traced by TraceProtoAndIfaceCache() and its contents are never
528 : * changed after they have been set.
529 : *
530 : * Calling address() avoids the read read barrier that does gray
531 : * unmarking, but it's not possible for the object to be gray here.
532 : */
533 :
534 0 : const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(constructors::id::CSSStyleRule);
535 0 : MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
536 0 : return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
537 : }
538 :
539 : JSObject*
540 0 : GetConstructorObject(JSContext* aCx)
541 : {
542 0 : return GetConstructorObjectHandle(aCx);
543 : }
544 :
545 : } // namespace CSSStyleRuleBinding
546 :
547 :
548 :
549 : } // namespace dom
550 : } // namespace mozilla
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