Line data Source code
1 : /* THIS FILE IS AUTOGENERATED FROM BroadcastChannel.webidl BY Codegen.py - DO NOT EDIT */
2 :
3 : #include "BroadcastChannelBinding.h"
4 : #include "EventHandlerBinding.h"
5 : #include "EventTargetBinding.h"
6 : #include "WrapperFactory.h"
7 : #include "mozilla/OwningNonNull.h"
8 : #include "mozilla/dom/BindingUtils.h"
9 : #include "mozilla/dom/BroadcastChannel.h"
10 : #include "mozilla/dom/DOMJSClass.h"
11 : #include "mozilla/dom/NonRefcountedDOMObject.h"
12 : #include "mozilla/dom/Nullable.h"
13 : #include "mozilla/dom/XrayExpandoClass.h"
14 :
15 : namespace mozilla {
16 : namespace dom {
17 :
18 : namespace BroadcastChannelBinding {
19 :
20 : static_assert(IsRefcounted<NativeType>::value == IsRefcounted<EventTargetBinding::NativeType>::value,
21 : "Can't inherit from an interface with a different ownership model.");
22 :
23 : static bool
24 0 : get_name(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::BroadcastChannel* self, JSJitGetterCallArgs args)
25 : {
26 0 : DOMString result;
27 0 : self->GetName(result);
28 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
29 0 : if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
30 0 : return false;
31 : }
32 0 : return true;
33 : }
34 :
35 : static const JSJitInfo name_getterinfo = {
36 : { (JSJitGetterOp)get_name },
37 : { prototypes::id::BroadcastChannel },
38 : { PrototypeTraits<prototypes::id::BroadcastChannel>::Depth },
39 : JSJitInfo::Getter,
40 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
41 : JSVAL_TYPE_STRING, /* returnType. Not relevant for setters. */
42 : false, /* isInfallible. False in setters. */
43 : false, /* isMovable. Not relevant for setters. */
44 : false, /* isEliminatable. Not relevant for setters. */
45 : false, /* isAlwaysInSlot. Only relevant for getters. */
46 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
47 : false, /* isTypedMethod. Only relevant for methods. */
48 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
49 : };
50 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
51 : static_assert(0 < 1, "There is no slot for us");
52 :
53 : static bool
54 0 : postMessage(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::BroadcastChannel* self, const JSJitMethodCallArgs& args)
55 : {
56 0 : if (MOZ_UNLIKELY(args.length() < 1)) {
57 0 : return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "BroadcastChannel.postMessage");
58 : }
59 0 : JS::Rooted<JS::Value> arg0(cx);
60 0 : arg0 = args[0];
61 0 : binding_detail::FastErrorResult rv;
62 0 : self->PostMessage(cx, arg0, rv);
63 0 : if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
64 0 : return false;
65 : }
66 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
67 0 : args.rval().setUndefined();
68 0 : return true;
69 : }
70 :
71 : static const JSJitInfo postMessage_methodinfo = {
72 : { (JSJitGetterOp)postMessage },
73 : { prototypes::id::BroadcastChannel },
74 : { PrototypeTraits<prototypes::id::BroadcastChannel>::Depth },
75 : JSJitInfo::Method,
76 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
77 : JSVAL_TYPE_UNDEFINED, /* returnType. Not relevant for setters. */
78 : false, /* isInfallible. False in setters. */
79 : false, /* isMovable. Not relevant for setters. */
80 : false, /* isEliminatable. Not relevant for setters. */
81 : false, /* isAlwaysInSlot. Only relevant for getters. */
82 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
83 : false, /* isTypedMethod. Only relevant for methods. */
84 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
85 : };
86 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
87 : static_assert(0 < 1, "There is no slot for us");
88 :
89 : static bool
90 0 : close(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::BroadcastChannel* self, const JSJitMethodCallArgs& args)
91 : {
92 0 : self->Close();
93 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
94 0 : args.rval().setUndefined();
95 0 : return true;
96 : }
97 :
98 : static const JSJitInfo close_methodinfo = {
99 : { (JSJitGetterOp)close },
100 : { prototypes::id::BroadcastChannel },
101 : { PrototypeTraits<prototypes::id::BroadcastChannel>::Depth },
102 : JSJitInfo::Method,
103 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
104 : JSVAL_TYPE_UNDEFINED, /* returnType. Not relevant for setters. */
105 : true, /* isInfallible. False in setters. */
106 : false, /* isMovable. Not relevant for setters. */
107 : false, /* isEliminatable. Not relevant for setters. */
108 : false, /* isAlwaysInSlot. Only relevant for getters. */
109 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
110 : false, /* isTypedMethod. Only relevant for methods. */
111 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
112 : };
113 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
114 : static_assert(0 < 1, "There is no slot for us");
115 :
116 : static bool
117 0 : get_onmessage(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::BroadcastChannel* self, JSJitGetterCallArgs args)
118 : {
119 0 : RefPtr<EventHandlerNonNull> result(self->GetOnmessage());
120 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
121 0 : if (result) {
122 0 : args.rval().setObjectOrNull(GetCallbackFromCallbackObject(result));
123 0 : if (!MaybeWrapObjectOrNullValue(cx, args.rval())) {
124 0 : return false;
125 : }
126 0 : return true;
127 : } else {
128 0 : args.rval().setNull();
129 0 : return true;
130 : }
131 : }
132 :
133 : static bool
134 0 : set_onmessage(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::BroadcastChannel* self, JSJitSetterCallArgs args)
135 : {
136 0 : RootedCallback<RefPtr<binding_detail::FastEventHandlerNonNull>> arg0(cx);
137 0 : if (args[0].isObject()) {
138 : { // scope for tempRoot
139 0 : JS::Rooted<JSObject*> tempRoot(cx, &args[0].toObject());
140 0 : arg0 = new binding_detail::FastEventHandlerNonNull(tempRoot);
141 : }
142 : } else {
143 0 : arg0 = nullptr;
144 : }
145 0 : self->SetOnmessage(Constify(arg0));
146 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
147 :
148 0 : return true;
149 : }
150 :
151 : static const JSJitInfo onmessage_getterinfo = {
152 : { (JSJitGetterOp)get_onmessage },
153 : { prototypes::id::BroadcastChannel },
154 : { PrototypeTraits<prototypes::id::BroadcastChannel>::Depth },
155 : JSJitInfo::Getter,
156 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
157 : JSVAL_TYPE_UNKNOWN, /* returnType. Not relevant for setters. */
158 : false, /* isInfallible. False in setters. */
159 : false, /* isMovable. Not relevant for setters. */
160 : false, /* isEliminatable. Not relevant for setters. */
161 : false, /* isAlwaysInSlot. Only relevant for getters. */
162 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
163 : false, /* isTypedMethod. Only relevant for methods. */
164 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
165 : };
166 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
167 : static_assert(0 < 1, "There is no slot for us");
168 : static const JSJitInfo onmessage_setterinfo = {
169 : { (JSJitGetterOp)set_onmessage },
170 : { prototypes::id::BroadcastChannel },
171 : { PrototypeTraits<prototypes::id::BroadcastChannel>::Depth },
172 : JSJitInfo::Setter,
173 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
174 : JSVAL_TYPE_UNDEFINED, /* returnType. Not relevant for setters. */
175 : false, /* isInfallible. False in setters. */
176 : false, /* isMovable. Not relevant for setters. */
177 : false, /* isEliminatable. Not relevant for setters. */
178 : false, /* isAlwaysInSlot. Only relevant for getters. */
179 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
180 : false, /* isTypedMethod. Only relevant for methods. */
181 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
182 : };
183 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
184 : static_assert(0 < 1, "There is no slot for us");
185 :
186 : static bool
187 0 : _addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
188 : {
189 0 : mozilla::dom::BroadcastChannel* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::BroadcastChannel>(obj);
190 : // We don't want to preserve if we don't have a wrapper, and we
191 : // obviously can't preserve if we're not initialized.
192 0 : if (self && self->GetWrapperPreserveColor()) {
193 0 : PreserveWrapper(self);
194 : }
195 0 : return true;
196 : }
197 :
198 : static void
199 0 : _finalize(js::FreeOp* fop, JSObject* obj)
200 : {
201 0 : mozilla::dom::BroadcastChannel* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::BroadcastChannel>(obj);
202 0 : if (self) {
203 0 : ClearWrapper(self, self, obj);
204 0 : AddForDeferredFinalization<mozilla::dom::BroadcastChannel>(self);
205 : }
206 0 : }
207 :
208 : static void
209 0 : _objectMoved(JSObject* obj, const JSObject* old)
210 : {
211 0 : mozilla::dom::BroadcastChannel* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::BroadcastChannel>(obj);
212 0 : if (self) {
213 0 : UpdateWrapper(self, self, obj, old);
214 : }
215 0 : }
216 :
217 : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
218 : #if defined(__clang__)
219 : #pragma clang diagnostic push
220 : #pragma clang diagnostic ignored "-Wmissing-braces"
221 : #endif
222 : static const JSFunctionSpec sMethods_specs[] = {
223 : JS_FNSPEC("postMessage", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&postMessage_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
224 : JS_FNSPEC("close", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&close_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
225 : JS_FS_END
226 : };
227 : #if defined(__clang__)
228 : #pragma clang diagnostic pop
229 : #endif
230 :
231 :
232 : // Can't be const because the pref-enabled boolean needs to be writable
233 : static Prefable<const JSFunctionSpec> sMethods[] = {
234 : { nullptr, &sMethods_specs[0] },
235 : { nullptr, nullptr }
236 : };
237 :
238 : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
239 : "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
240 : static_assert(2 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
241 : "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
242 :
243 : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
244 : #if defined(__clang__)
245 : #pragma clang diagnostic push
246 : #pragma clang diagnostic ignored "-Wmissing-braces"
247 : #endif
248 : static const JSPropertySpec sAttributes_specs[] = {
249 : { "name", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &name_getterinfo, nullptr, nullptr },
250 : { "onmessage", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &onmessage_getterinfo, GenericBindingSetter, &onmessage_setterinfo },
251 : { nullptr, 0, nullptr, nullptr, nullptr, nullptr }
252 : };
253 : #if defined(__clang__)
254 : #pragma clang diagnostic pop
255 : #endif
256 :
257 :
258 : // Can't be const because the pref-enabled boolean needs to be writable
259 : static Prefable<const JSPropertySpec> sAttributes[] = {
260 : { nullptr, &sAttributes_specs[0] },
261 : { nullptr, nullptr }
262 : };
263 :
264 : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
265 : "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
266 : static_assert(2 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
267 : "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
268 :
269 :
270 : static uint16_t sNativeProperties_sortedPropertyIndices[4];
271 : static PropertyInfo sNativeProperties_propertyInfos[4];
272 :
273 : static const NativePropertiesN<2> sNativeProperties = {
274 : false, 0,
275 : false, 0,
276 : true, 0 /* sMethods */,
277 : true, 1 /* sAttributes */,
278 : false, 0,
279 : false, 0,
280 : false, 0,
281 : -1,
282 : 4,
283 : sNativeProperties_sortedPropertyIndices,
284 : {
285 : { sMethods, &sNativeProperties_propertyInfos[0] },
286 : { sAttributes, &sNativeProperties_propertyInfos[2] }
287 : }
288 : };
289 : static_assert(4 < 1ull << CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount),
290 : "We have a property info count that is oversized");
291 :
292 : static bool
293 0 : _constructor(JSContext* cx, unsigned argc, JS::Value* vp)
294 : {
295 0 : JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
296 0 : JS::Rooted<JSObject*> obj(cx, &args.callee());
297 0 : if (!args.isConstructing()) {
298 : // XXXbz wish I could get the name from the callee instead of
299 : // Adding more relocations
300 0 : return ThrowConstructorWithoutNew(cx, "BroadcastChannel");
301 : }
302 :
303 0 : GlobalObject global(cx, obj);
304 0 : if (global.Failed()) {
305 0 : return false;
306 : }
307 :
308 0 : JS::Rooted<JSObject*> desiredProto(cx);
309 0 : if (!GetDesiredProto(cx, args, &desiredProto)) {
310 0 : return false;
311 : }
312 :
313 0 : if (MOZ_UNLIKELY(args.length() < 1)) {
314 0 : return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "BroadcastChannel");
315 : }
316 0 : bool objIsXray = xpc::WrapperFactory::IsXrayWrapper(obj);
317 0 : binding_detail::FakeString arg0;
318 0 : if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
319 0 : return false;
320 : }
321 0 : Maybe<JSAutoCompartment> ac;
322 0 : if (objIsXray) {
323 0 : obj = js::CheckedUnwrap(obj);
324 0 : if (!obj) {
325 0 : return false;
326 : }
327 0 : ac.emplace(cx, obj);
328 0 : if (!JS_WrapObject(cx, &desiredProto)) {
329 0 : return false;
330 : }
331 : }
332 0 : binding_detail::FastErrorResult rv;
333 0 : auto result(StrongOrRawPtr<mozilla::dom::BroadcastChannel>(mozilla::dom::BroadcastChannel::Constructor(global, NonNullHelper(Constify(arg0)), rv)));
334 0 : if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
335 0 : return false;
336 : }
337 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
338 : static_assert(!IsPointer<decltype(result)>::value,
339 : "NewObject implies that we need to keep the object alive with a strong reference.");
340 0 : if (!GetOrCreateDOMReflector(cx, result, args.rval(), desiredProto)) {
341 0 : MOZ_ASSERT(true || JS_IsExceptionPending(cx));
342 0 : return false;
343 : }
344 0 : return true;
345 : }
346 :
347 : static const js::ClassOps sInterfaceObjectClassOps = {
348 : nullptr, /* addProperty */
349 : nullptr, /* delProperty */
350 : nullptr, /* getProperty */
351 : nullptr, /* setProperty */
352 : nullptr, /* enumerate */
353 : nullptr, /* newEnumerate */
354 : nullptr, /* resolve */
355 : nullptr, /* mayResolve */
356 : nullptr, /* finalize */
357 : _constructor, /* call */
358 : nullptr, /* hasInstance */
359 : _constructor, /* construct */
360 : nullptr, /* trace */
361 : };
362 :
363 : static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
364 : {
365 : "Function",
366 : JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
367 : &sInterfaceObjectClassOps,
368 : JS_NULL_CLASS_SPEC,
369 : JS_NULL_CLASS_EXT,
370 : &sInterfaceObjectClassObjectOps
371 : },
372 : eInterface,
373 : true,
374 : prototypes::id::BroadcastChannel,
375 : PrototypeTraits<prototypes::id::BroadcastChannel>::Depth,
376 : sNativePropertyHooks,
377 : "function BroadcastChannel() {\n [native code]\n}",
378 : EventTargetBinding::GetConstructorObject
379 : };
380 :
381 : static const DOMIfaceAndProtoJSClass sPrototypeClass = {
382 : {
383 : "BroadcastChannelPrototype",
384 : JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),
385 : JS_NULL_CLASS_OPS,
386 : JS_NULL_CLASS_SPEC,
387 : JS_NULL_CLASS_EXT,
388 : JS_NULL_OBJECT_OPS
389 : },
390 : eInterfacePrototype,
391 : false,
392 : prototypes::id::BroadcastChannel,
393 : PrototypeTraits<prototypes::id::BroadcastChannel>::Depth,
394 : sNativePropertyHooks,
395 : "[object BroadcastChannelPrototype]",
396 : EventTargetBinding::GetProtoObject
397 : };
398 :
399 : JSObject*
400 0 : DefineDOMInterface(JSContext* aCx, JS::Handle<JSObject*> aGlobal, JS::Handle<jsid> id, bool aDefineOnGlobal)
401 : {
402 0 : return GetConstructorObjectHandle(aCx, aDefineOnGlobal);
403 : }
404 :
405 : static const js::ClassOps sClassOps = {
406 : _addProperty, /* addProperty */
407 : nullptr, /* delProperty */
408 : nullptr, /* getProperty */
409 : nullptr, /* setProperty */
410 : nullptr, /* enumerate */
411 : nullptr, /* newEnumerate */
412 : nullptr, /* resolve */
413 : nullptr, /* mayResolve */
414 : _finalize, /* finalize */
415 : nullptr, /* call */
416 : nullptr, /* hasInstance */
417 : nullptr, /* construct */
418 : nullptr, /* trace */
419 : };
420 :
421 : static const js::ClassExtension sClassExtension = {
422 : nullptr, /* weakmapKeyDelegateOp */
423 : _objectMoved /* objectMovedOp */
424 : };
425 :
426 : static const DOMJSClass sClass = {
427 : { "BroadcastChannel",
428 : JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
429 : &sClassOps,
430 : JS_NULL_CLASS_SPEC,
431 : &sClassExtension,
432 : JS_NULL_OBJECT_OPS
433 : },
434 : { prototypes::id::EventTarget, prototypes::id::BroadcastChannel, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
435 : IsBaseOf<nsISupports, mozilla::dom::BroadcastChannel >::value,
436 : sNativePropertyHooks,
437 : FindAssociatedGlobalForNative<mozilla::dom::BroadcastChannel>::Get,
438 : GetProtoObjectHandle,
439 : GetCCParticipant<mozilla::dom::BroadcastChannel>::Get()
440 : };
441 : static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
442 : "Must have the right minimal number of reserved slots.");
443 : static_assert(1 >= 1,
444 : "Must have enough reserved slots.");
445 :
446 : const JSClass*
447 0 : GetJSClass()
448 : {
449 0 : return sClass.ToJSClass();
450 : }
451 :
452 : bool
453 0 : Wrap(JSContext* aCx, mozilla::dom::BroadcastChannel* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
454 : {
455 : MOZ_ASSERT(static_cast<mozilla::dom::BroadcastChannel*>(aObject) ==
456 : reinterpret_cast<mozilla::dom::BroadcastChannel*>(aObject),
457 : "Multiple inheritance for mozilla::dom::BroadcastChannel is broken.");
458 : MOZ_ASSERT(static_cast<mozilla::dom::EventTarget*>(aObject) ==
459 : reinterpret_cast<mozilla::dom::EventTarget*>(aObject),
460 : "Multiple inheritance for mozilla::dom::EventTarget is broken.");
461 0 : MOZ_ASSERT(ToSupportsIsCorrect(aObject));
462 0 : MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
463 0 : MOZ_ASSERT(!aCache->GetWrapper(),
464 : "You should probably not be using Wrap() directly; use "
465 : "GetOrCreateDOMReflector instead");
466 :
467 0 : MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
468 : "nsISupports must be on our primary inheritance chain");
469 :
470 0 : JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
471 0 : if (!global) {
472 0 : return false;
473 : }
474 0 : MOZ_ASSERT(JS_IsGlobalObject(global));
475 0 : MOZ_ASSERT(JS::ObjectIsNotGray(global));
476 :
477 : // That might have ended up wrapping us already, due to the wonders
478 : // of XBL. Check for that, and bail out as needed.
479 0 : aReflector.set(aCache->GetWrapper());
480 0 : if (aReflector) {
481 : #ifdef DEBUG
482 0 : binding_detail::AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
483 : #endif // DEBUG
484 0 : return true;
485 : }
486 :
487 0 : JSAutoCompartment ac(aCx, global);
488 0 : JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
489 0 : if (!canonicalProto) {
490 0 : return false;
491 : }
492 0 : JS::Rooted<JSObject*> proto(aCx);
493 0 : if (aGivenProto) {
494 0 : proto = aGivenProto;
495 : // Unfortunately, while aGivenProto was in the compartment of aCx
496 : // coming in, we changed compartments to that of "parent" so may need
497 : // to wrap the proto here.
498 0 : if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
499 0 : if (!JS_WrapObject(aCx, &proto)) {
500 0 : return false;
501 : }
502 : }
503 : } else {
504 0 : proto = canonicalProto;
505 : }
506 :
507 0 : BindingJSObjectCreator<mozilla::dom::BroadcastChannel> creator(aCx);
508 0 : creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
509 0 : if (!aReflector) {
510 0 : return false;
511 : }
512 :
513 0 : aCache->SetWrapper(aReflector);
514 0 : creator.InitializationSucceeded();
515 :
516 0 : MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
517 : aCache->GetWrapperPreserveColor() == aReflector);
518 : // If proto != canonicalProto, we have to preserve our wrapper;
519 : // otherwise we won't be able to properly recreate it later, since
520 : // we won't know what proto to use. Note that we don't check
521 : // aGivenProto here, since it's entirely possible (and even
522 : // somewhat common) to have a non-null aGivenProto which is the
523 : // same as canonicalProto.
524 0 : if (proto != canonicalProto) {
525 0 : PreserveWrapper(aObject);
526 : }
527 :
528 0 : return true;
529 : }
530 :
531 : const NativePropertyHooks sNativePropertyHooks[] = { {
532 : nullptr,
533 : nullptr,
534 : nullptr,
535 : { sNativeProperties.Upcast(), nullptr },
536 : prototypes::id::BroadcastChannel,
537 : constructors::id::BroadcastChannel,
538 : EventTargetBinding::sNativePropertyHooks,
539 : &DefaultXrayExpandoObjectClass
540 : } };
541 :
542 : void
543 1 : CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
544 : {
545 1 : JS::Handle<JSObject*> parentProto(EventTargetBinding::GetProtoObjectHandle(aCx));
546 1 : if (!parentProto) {
547 0 : return;
548 : }
549 :
550 1 : JS::Handle<JSObject*> constructorProto(EventTargetBinding::GetConstructorObjectHandle(aCx));
551 1 : if (!constructorProto) {
552 0 : return;
553 : }
554 :
555 : static bool sIdsInited = false;
556 1 : if (!sIdsInited && NS_IsMainThread()) {
557 0 : if (!InitIds(aCx, sNativeProperties.Upcast())) {
558 0 : return;
559 : }
560 0 : sIdsInited = true;
561 : }
562 :
563 1 : JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::BroadcastChannel);
564 1 : JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::BroadcastChannel);
565 1 : dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
566 : &sPrototypeClass.mBase, protoCache,
567 : constructorProto, &sInterfaceObjectClass.mBase, 1, nullptr,
568 : interfaceCache,
569 : sNativeProperties.Upcast(),
570 : nullptr,
571 : "BroadcastChannel", aDefineOnGlobal,
572 : nullptr,
573 1 : false);
574 : }
575 :
576 : JS::Handle<JSObject*>
577 0 : GetProtoObjectHandle(JSContext* aCx)
578 : {
579 : /* Get the interface prototype object for this class. This will create the
580 : object as needed. */
581 0 : bool aDefineOnGlobal = true;
582 :
583 : /* Make sure our global is sane. Hopefully we can remove this sometime */
584 0 : JSObject* global = JS::CurrentGlobalOrNull(aCx);
585 0 : if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
586 0 : return nullptr;
587 : }
588 :
589 : /* Check to see whether the interface objects are already installed */
590 0 : ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
591 0 : if (!protoAndIfaceCache.HasEntryInSlot(prototypes::id::BroadcastChannel)) {
592 0 : JS::Rooted<JSObject*> rootedGlobal(aCx, global);
593 0 : CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
594 : }
595 :
596 : /*
597 : * The object might _still_ be null, but that's OK.
598 : *
599 : * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
600 : * traced by TraceProtoAndIfaceCache() and its contents are never
601 : * changed after they have been set.
602 : *
603 : * Calling address() avoids the read read barrier that does gray
604 : * unmarking, but it's not possible for the object to be gray here.
605 : */
606 :
607 0 : const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(prototypes::id::BroadcastChannel);
608 0 : MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
609 0 : return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
610 : }
611 :
612 : JS::Handle<JSObject*>
613 1 : GetConstructorObjectHandle(JSContext* aCx, bool aDefineOnGlobal)
614 : {
615 : /* Get the interface object for this class. This will create the object as
616 : needed. */
617 :
618 : /* Make sure our global is sane. Hopefully we can remove this sometime */
619 1 : JSObject* global = JS::CurrentGlobalOrNull(aCx);
620 1 : if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
621 0 : return nullptr;
622 : }
623 :
624 : /* Check to see whether the interface objects are already installed */
625 1 : ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
626 1 : if (!protoAndIfaceCache.HasEntryInSlot(constructors::id::BroadcastChannel)) {
627 2 : JS::Rooted<JSObject*> rootedGlobal(aCx, global);
628 1 : CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
629 : }
630 :
631 : /*
632 : * The object might _still_ be null, but that's OK.
633 : *
634 : * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
635 : * traced by TraceProtoAndIfaceCache() and its contents are never
636 : * changed after they have been set.
637 : *
638 : * Calling address() avoids the read read barrier that does gray
639 : * unmarking, but it's not possible for the object to be gray here.
640 : */
641 :
642 1 : const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(constructors::id::BroadcastChannel);
643 1 : MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
644 1 : return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
645 : }
646 :
647 : JSObject*
648 1 : GetConstructorObject(JSContext* aCx)
649 : {
650 1 : return GetConstructorObjectHandle(aCx);
651 : }
652 :
653 : } // namespace BroadcastChannelBinding
654 :
655 :
656 :
657 : } // namespace dom
658 : } // namespace mozilla
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