Line data Source code
1 : /* THIS FILE IS AUTOGENERATED FROM MessageEvent.webidl BY Codegen.py - DO NOT EDIT */
2 :
3 : #include "AtomList.h"
4 : #include "EventBinding.h"
5 : #include "MessageEventBinding.h"
6 : #include "WrapperFactory.h"
7 : #include "XrayWrapper.h"
8 : #include "mozilla/OwningNonNull.h"
9 : #include "mozilla/dom/BindingUtils.h"
10 : #include "mozilla/dom/DOMJSClass.h"
11 : #include "mozilla/dom/MessageEvent.h"
12 : #include "mozilla/dom/MessagePort.h"
13 : #include "mozilla/dom/NonRefcountedDOMObject.h"
14 : #include "mozilla/dom/Nullable.h"
15 : #include "mozilla/dom/PrimitiveConversions.h"
16 : #include "mozilla/dom/ScriptSettings.h"
17 : #include "mozilla/dom/UnionConversions.h"
18 : #include "mozilla/dom/XrayExpandoClass.h"
19 : #include "mozilla/dom/workers/bindings/ServiceWorker.h"
20 : #include "nsPIDOMWindow.h"
21 :
22 : namespace mozilla {
23 : namespace dom {
24 :
25 : void
26 0 : ImplCycleCollectionTraverse(nsCycleCollectionTraversalCallback& aCallback, OwningWindowProxyOrMessagePortOrServiceWorker& aUnion, const char* aName, uint32_t aFlags)
27 : {
28 0 : if (aUnion.IsWindowProxy()) {
29 0 : ImplCycleCollectionTraverse(aCallback, aUnion.GetAsWindowProxy(), "mWindowProxy", aFlags);
30 0 : } else if (aUnion.IsMessagePort()) {
31 0 : ImplCycleCollectionTraverse(aCallback, aUnion.GetAsMessagePort(), "mMessagePort", aFlags);
32 0 : } else if (aUnion.IsServiceWorker()) {
33 0 : ImplCycleCollectionTraverse(aCallback, aUnion.GetAsServiceWorker(), "mServiceWorker", aFlags);
34 : }
35 0 : }
36 :
37 :
38 : void
39 0 : ImplCycleCollectionUnlink(OwningWindowProxyOrMessagePortOrServiceWorker& aUnion)
40 : {
41 0 : aUnion.Uninit();
42 0 : }
43 :
44 :
45 : bool
46 0 : WindowProxyOrMessagePortOrServiceWorker::ToJSVal(JSContext* cx, JS::Handle<JSObject*> scopeObj, JS::MutableHandle<JS::Value> rval) const
47 : {
48 0 : switch (mType) {
49 : case eUninitialized: {
50 0 : return false;
51 : break;
52 : }
53 : case eWindowProxy: {
54 0 : if (!WrapObject(cx, mValue.mWindowProxy.Value(), rval)) {
55 0 : return false;
56 : }
57 0 : return true;
58 : break;
59 : }
60 : case eMessagePort: {
61 0 : if (!GetOrCreateDOMReflector(cx, mValue.mMessagePort.Value(), rval)) {
62 0 : MOZ_ASSERT(true || JS_IsExceptionPending(cx));
63 0 : return false;
64 : }
65 0 : return true;
66 : break;
67 : }
68 : case eServiceWorker: {
69 0 : if (!GetOrCreateDOMReflector(cx, mValue.mServiceWorker.Value(), rval)) {
70 0 : MOZ_ASSERT(true || JS_IsExceptionPending(cx));
71 0 : return false;
72 : }
73 0 : return true;
74 : break;
75 : }
76 : default: {
77 0 : return false;
78 : break;
79 : }
80 : }
81 :
82 : return false;
83 : }
84 :
85 :
86 : RefPtr<nsPIDOMWindowOuter>&
87 0 : OwningWindowProxyOrMessagePortOrServiceWorker::RawSetAsWindowProxy()
88 : {
89 0 : if (mType == eWindowProxy) {
90 0 : return mValue.mWindowProxy.Value();
91 : }
92 0 : MOZ_ASSERT(mType == eUninitialized);
93 0 : mType = eWindowProxy;
94 0 : return mValue.mWindowProxy.SetValue();
95 : }
96 :
97 : RefPtr<nsPIDOMWindowOuter>&
98 0 : OwningWindowProxyOrMessagePortOrServiceWorker::SetAsWindowProxy()
99 : {
100 0 : if (mType == eWindowProxy) {
101 0 : return mValue.mWindowProxy.Value();
102 : }
103 0 : Uninit();
104 0 : mType = eWindowProxy;
105 0 : return mValue.mWindowProxy.SetValue();
106 : }
107 :
108 : bool
109 0 : OwningWindowProxyOrMessagePortOrServiceWorker::TrySetToWindowProxy(JSContext* cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
110 : {
111 0 : tryNext = false;
112 : { // scope for memberSlot
113 0 : RefPtr<nsPIDOMWindowOuter>& memberSlot = RawSetAsWindowProxy();
114 0 : static_assert(IsRefcounted<nsPIDOMWindowOuter>::value, "We can only store refcounted classes.");RefPtr<nsPIDOMWindowOuter> mWindowProxyHolder;
115 0 : JS::Rooted<JSObject*> source(cx, &value.toObject());
116 0 : if (NS_FAILED(UnwrapArg<nsPIDOMWindowOuter>(cx, source, getter_AddRefs(mWindowProxyHolder)))) {
117 0 : DestroyWindowProxy();
118 0 : tryNext = true;
119 0 : return true;
120 : }
121 0 : MOZ_ASSERT(mWindowProxyHolder);
122 0 : memberSlot = mWindowProxyHolder;
123 : }
124 0 : return true;
125 : }
126 :
127 : void
128 0 : OwningWindowProxyOrMessagePortOrServiceWorker::DestroyWindowProxy()
129 : {
130 0 : MOZ_ASSERT(IsWindowProxy(), "Wrong type!");
131 0 : mValue.mWindowProxy.Destroy();
132 0 : mType = eUninitialized;
133 0 : }
134 :
135 :
136 :
137 :
138 : OwningNonNull<mozilla::dom::MessagePort>&
139 0 : OwningWindowProxyOrMessagePortOrServiceWorker::RawSetAsMessagePort()
140 : {
141 0 : if (mType == eMessagePort) {
142 0 : return mValue.mMessagePort.Value();
143 : }
144 0 : MOZ_ASSERT(mType == eUninitialized);
145 0 : mType = eMessagePort;
146 0 : return mValue.mMessagePort.SetValue();
147 : }
148 :
149 : OwningNonNull<mozilla::dom::MessagePort>&
150 0 : OwningWindowProxyOrMessagePortOrServiceWorker::SetAsMessagePort()
151 : {
152 0 : if (mType == eMessagePort) {
153 0 : return mValue.mMessagePort.Value();
154 : }
155 0 : Uninit();
156 0 : mType = eMessagePort;
157 0 : return mValue.mMessagePort.SetValue();
158 : }
159 :
160 : bool
161 0 : OwningWindowProxyOrMessagePortOrServiceWorker::TrySetToMessagePort(JSContext* cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
162 : {
163 0 : tryNext = false;
164 : { // scope for memberSlot
165 0 : OwningNonNull<mozilla::dom::MessagePort>& memberSlot = RawSetAsMessagePort();
166 : static_assert(IsRefcounted<mozilla::dom::MessagePort>::value, "We can only store refcounted classes.");{
167 0 : nsresult rv = UnwrapObject<prototypes::id::MessagePort, mozilla::dom::MessagePort>(value, memberSlot);
168 0 : if (NS_FAILED(rv)) {
169 0 : DestroyMessagePort();
170 0 : tryNext = true;
171 0 : return true;
172 : }
173 : }
174 : }
175 0 : return true;
176 : }
177 :
178 : void
179 0 : OwningWindowProxyOrMessagePortOrServiceWorker::DestroyMessagePort()
180 : {
181 0 : MOZ_ASSERT(IsMessagePort(), "Wrong type!");
182 0 : mValue.mMessagePort.Destroy();
183 0 : mType = eUninitialized;
184 0 : }
185 :
186 :
187 :
188 :
189 : OwningNonNull<mozilla::dom::workers::ServiceWorker>&
190 0 : OwningWindowProxyOrMessagePortOrServiceWorker::RawSetAsServiceWorker()
191 : {
192 0 : if (mType == eServiceWorker) {
193 0 : return mValue.mServiceWorker.Value();
194 : }
195 0 : MOZ_ASSERT(mType == eUninitialized);
196 0 : mType = eServiceWorker;
197 0 : return mValue.mServiceWorker.SetValue();
198 : }
199 :
200 : OwningNonNull<mozilla::dom::workers::ServiceWorker>&
201 0 : OwningWindowProxyOrMessagePortOrServiceWorker::SetAsServiceWorker()
202 : {
203 0 : if (mType == eServiceWorker) {
204 0 : return mValue.mServiceWorker.Value();
205 : }
206 0 : Uninit();
207 0 : mType = eServiceWorker;
208 0 : return mValue.mServiceWorker.SetValue();
209 : }
210 :
211 : bool
212 0 : OwningWindowProxyOrMessagePortOrServiceWorker::TrySetToServiceWorker(JSContext* cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
213 : {
214 0 : tryNext = false;
215 : { // scope for memberSlot
216 0 : OwningNonNull<mozilla::dom::workers::ServiceWorker>& memberSlot = RawSetAsServiceWorker();
217 : static_assert(IsRefcounted<mozilla::dom::workers::ServiceWorker>::value, "We can only store refcounted classes.");{
218 0 : nsresult rv = UnwrapObject<prototypes::id::ServiceWorker, mozilla::dom::workers::ServiceWorker>(value, memberSlot);
219 0 : if (NS_FAILED(rv)) {
220 0 : DestroyServiceWorker();
221 0 : tryNext = true;
222 0 : return true;
223 : }
224 : }
225 : }
226 0 : return true;
227 : }
228 :
229 : void
230 0 : OwningWindowProxyOrMessagePortOrServiceWorker::DestroyServiceWorker()
231 : {
232 0 : MOZ_ASSERT(IsServiceWorker(), "Wrong type!");
233 0 : mValue.mServiceWorker.Destroy();
234 0 : mType = eUninitialized;
235 0 : }
236 :
237 :
238 :
239 :
240 : void
241 0 : OwningWindowProxyOrMessagePortOrServiceWorker::Uninit()
242 : {
243 0 : switch (mType) {
244 : case eUninitialized: {
245 0 : break;
246 : }
247 : case eWindowProxy: {
248 0 : DestroyWindowProxy();
249 0 : break;
250 : }
251 : case eMessagePort: {
252 0 : DestroyMessagePort();
253 0 : break;
254 : }
255 : case eServiceWorker: {
256 0 : DestroyServiceWorker();
257 0 : break;
258 : }
259 : }
260 0 : }
261 :
262 : bool
263 0 : OwningWindowProxyOrMessagePortOrServiceWorker::ToJSVal(JSContext* cx, JS::Handle<JSObject*> scopeObj, JS::MutableHandle<JS::Value> rval) const
264 : {
265 0 : switch (mType) {
266 : case eUninitialized: {
267 0 : return false;
268 : break;
269 : }
270 : case eWindowProxy: {
271 0 : if (!WrapObject(cx, mValue.mWindowProxy.Value(), rval)) {
272 0 : return false;
273 : }
274 0 : return true;
275 : break;
276 : }
277 : case eMessagePort: {
278 0 : if (!GetOrCreateDOMReflector(cx, mValue.mMessagePort.Value(), rval)) {
279 0 : MOZ_ASSERT(true || JS_IsExceptionPending(cx));
280 0 : return false;
281 : }
282 0 : return true;
283 : break;
284 : }
285 : case eServiceWorker: {
286 0 : if (!GetOrCreateDOMReflector(cx, mValue.mServiceWorker.Value(), rval)) {
287 0 : MOZ_ASSERT(true || JS_IsExceptionPending(cx));
288 0 : return false;
289 : }
290 0 : return true;
291 : break;
292 : }
293 : default: {
294 0 : return false;
295 : break;
296 : }
297 : }
298 :
299 : return false;
300 : }
301 :
302 : void
303 0 : OwningWindowProxyOrMessagePortOrServiceWorker::TraceUnion(JSTracer* trc)
304 : {
305 0 : }
306 :
307 : OwningWindowProxyOrMessagePortOrServiceWorker&
308 0 : OwningWindowProxyOrMessagePortOrServiceWorker::operator=(const OwningWindowProxyOrMessagePortOrServiceWorker& aOther)
309 : {
310 0 : switch (aOther.mType) {
311 : case eUninitialized: {
312 0 : MOZ_ASSERT(mType == eUninitialized,
313 : "We need to destroy ourselves?");
314 0 : break;
315 : }
316 : case eWindowProxy: {
317 0 : SetAsWindowProxy() = aOther.GetAsWindowProxy();
318 0 : break;
319 : }
320 : case eMessagePort: {
321 0 : SetAsMessagePort() = aOther.GetAsMessagePort();
322 0 : break;
323 : }
324 : case eServiceWorker: {
325 0 : SetAsServiceWorker() = aOther.GetAsServiceWorker();
326 0 : break;
327 : }
328 : }
329 0 : return *this;
330 : }
331 :
332 :
333 :
334 0 : MessageEventInit::MessageEventInit()
335 0 : : EventInit(FastDictionaryInitializer()),
336 0 : mData(JS::UndefinedValue())
337 : {
338 : // Safe to pass a null context if we pass a null value
339 0 : Init(nullptr, JS::NullHandleValue);
340 0 : }
341 :
342 :
343 : bool
344 0 : MessageEventInit::InitIds(JSContext* cx, MessageEventInitAtoms* atomsCache)
345 : {
346 0 : MOZ_ASSERT(!*reinterpret_cast<jsid**>(atomsCache));
347 :
348 : // Initialize these in reverse order so that any failure leaves the first one
349 : // uninitialized.
350 0 : if (!atomsCache->source_id.init(cx, "source") ||
351 0 : !atomsCache->ports_id.init(cx, "ports") ||
352 0 : !atomsCache->origin_id.init(cx, "origin") ||
353 0 : !atomsCache->lastEventId_id.init(cx, "lastEventId") ||
354 0 : !atomsCache->data_id.init(cx, "data")) {
355 0 : return false;
356 : }
357 0 : return true;
358 : }
359 :
360 : bool
361 0 : MessageEventInit::Init(JSContext* cx, JS::Handle<JS::Value> val, const char* sourceDescription, bool passedToJSImpl)
362 : {
363 : // Passing a null JSContext is OK only if we're initing from null,
364 : // Since in that case we will not have to do any property gets
365 : // Also evaluate isNullOrUndefined in order to avoid false-positive
366 : // checkers by static analysis tools
367 0 : MOZ_ASSERT_IF(!cx, val.isNull() && val.isNullOrUndefined());
368 0 : MessageEventInitAtoms* atomsCache = nullptr;
369 0 : if (cx) {
370 0 : atomsCache = GetAtomCache<MessageEventInitAtoms>(cx);
371 0 : if (!*reinterpret_cast<jsid**>(atomsCache) && !InitIds(cx, atomsCache)) {
372 0 : return false;
373 : }
374 : }
375 :
376 : // Per spec, we init the parent's members first
377 0 : if (!EventInit::Init(cx, val)) {
378 0 : return false;
379 : }
380 :
381 0 : bool isNull = val.isNullOrUndefined();
382 : // We only need these if !isNull, in which case we have |cx|.
383 0 : Maybe<JS::Rooted<JSObject *> > object;
384 0 : Maybe<JS::Rooted<JS::Value> > temp;
385 0 : if (!isNull) {
386 0 : MOZ_ASSERT(cx);
387 0 : object.emplace(cx, &val.toObject());
388 0 : temp.emplace(cx);
389 : }
390 0 : if (!isNull) {
391 0 : if (!JS_GetPropertyById(cx, *object, atomsCache->data_id, temp.ptr())) {
392 0 : return false;
393 : }
394 : }
395 0 : if (!isNull && !temp->isUndefined()) {
396 : #ifdef __clang__
397 : #pragma clang diagnostic push
398 : #pragma clang diagnostic ignored "-Wunreachable-code"
399 : #pragma clang diagnostic ignored "-Wunreachable-code-return"
400 : #endif // __clang__
401 0 : if ((passedToJSImpl) && !CallerSubsumes(temp.ref())) {
402 0 : ThrowErrorMessage(cx, MSG_PERMISSION_DENIED_TO_PASS_ARG, "'data' member of MessageEventInit");
403 0 : return false;
404 : }
405 : #ifdef __clang__
406 : #pragma clang diagnostic pop
407 : #endif // __clang__
408 0 : mData = temp.ref();
409 : } else {
410 0 : mData = JS::NullValue();
411 : }
412 0 : mIsAnyMemberPresent = true;
413 :
414 0 : if (!isNull) {
415 0 : if (!JS_GetPropertyById(cx, *object, atomsCache->lastEventId_id, temp.ptr())) {
416 0 : return false;
417 : }
418 : }
419 0 : if (!isNull && !temp->isUndefined()) {
420 0 : if (!ConvertJSValueToString(cx, temp.ref(), eStringify, eStringify, mLastEventId)) {
421 0 : return false;
422 : }
423 : } else {
424 : static const char16_t data[] = { 0 };
425 0 : mLastEventId.Rebind(data, ArrayLength(data) - 1);
426 : }
427 0 : mIsAnyMemberPresent = true;
428 :
429 0 : if (!isNull) {
430 0 : if (!JS_GetPropertyById(cx, *object, atomsCache->origin_id, temp.ptr())) {
431 0 : return false;
432 : }
433 : }
434 0 : if (!isNull && !temp->isUndefined()) {
435 0 : if (!ConvertJSValueToString(cx, temp.ref(), eStringify, eStringify, mOrigin)) {
436 0 : return false;
437 : }
438 : } else {
439 : static const char16_t data[] = { 0 };
440 0 : mOrigin.Rebind(data, ArrayLength(data) - 1);
441 : }
442 0 : mIsAnyMemberPresent = true;
443 :
444 0 : if (!isNull) {
445 0 : if (!JS_GetPropertyById(cx, *object, atomsCache->ports_id, temp.ptr())) {
446 0 : return false;
447 : }
448 : }
449 0 : if (!isNull && !temp->isUndefined()) {
450 0 : if (temp.ref().isObject()) {
451 0 : JS::ForOfIterator iter(cx);
452 0 : if (!iter.init(temp.ref(), JS::ForOfIterator::AllowNonIterable)) {
453 0 : return false;
454 : }
455 0 : if (!iter.valueIsIterable()) {
456 0 : ThrowErrorMessage(cx, MSG_NOT_SEQUENCE, "'ports' member of MessageEventInit");
457 0 : return false;
458 : }
459 0 : Sequence<OwningNonNull<mozilla::dom::MessagePort>> &arr = mPorts;
460 0 : JS::Rooted<JS::Value> temp(cx);
461 : while (true) {
462 : bool done;
463 0 : if (!iter.next(&temp, &done)) {
464 0 : return false;
465 : }
466 0 : if (done) {
467 0 : break;
468 : }
469 0 : OwningNonNull<mozilla::dom::MessagePort>* slotPtr = arr.AppendElement(mozilla::fallible);
470 0 : if (!slotPtr) {
471 0 : JS_ReportOutOfMemory(cx);
472 0 : return false;
473 : }
474 0 : OwningNonNull<mozilla::dom::MessagePort>& slot = *slotPtr;
475 0 : if (temp.isObject()) {
476 : static_assert(IsRefcounted<mozilla::dom::MessagePort>::value, "We can only store refcounted classes.");{
477 0 : nsresult rv = UnwrapObject<prototypes::id::MessagePort, mozilla::dom::MessagePort>(&temp, slot);
478 0 : if (NS_FAILED(rv)) {
479 0 : ThrowErrorMessage(cx, MSG_DOES_NOT_IMPLEMENT_INTERFACE, "Element of 'ports' member of MessageEventInit", "MessagePort");
480 0 : return false;
481 : }
482 : }
483 : } else {
484 0 : ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Element of 'ports' member of MessageEventInit");
485 0 : return false;
486 : }
487 0 : }
488 : } else {
489 0 : ThrowErrorMessage(cx, MSG_NOT_SEQUENCE, "'ports' member of MessageEventInit");
490 0 : return false;
491 : }
492 : } else {
493 : /* Array is already empty; nothing to do */
494 : }
495 0 : mIsAnyMemberPresent = true;
496 :
497 0 : if (!isNull) {
498 0 : if (!JS_GetPropertyById(cx, *object, atomsCache->source_id, temp.ptr())) {
499 0 : return false;
500 : }
501 : }
502 0 : if (!(!isNull && !temp->isUndefined()) || temp.ref().isNullOrUndefined()) {
503 0 : mSource.SetNull();
504 : } else {
505 : {
506 0 : bool done = false, failed = false, tryNext;
507 0 : if (temp.ref().isObject()) {
508 0 : done = (failed = !mSource.SetValue().TrySetToWindowProxy(cx, temp.ref(), tryNext, passedToJSImpl)) || !tryNext ||
509 0 : (failed = !mSource.SetValue().TrySetToMessagePort(cx, temp.ref(), tryNext, passedToJSImpl)) || !tryNext ||
510 0 : (failed = !mSource.SetValue().TrySetToServiceWorker(cx, temp.ref(), tryNext, passedToJSImpl)) || !tryNext;
511 :
512 : }
513 0 : if (failed) {
514 0 : return false;
515 : }
516 0 : if (!done) {
517 0 : ThrowErrorMessage(cx, MSG_NOT_IN_UNION, "'source' member of MessageEventInit", "WindowProxy, MessagePort, ServiceWorker");
518 0 : return false;
519 : }
520 : }
521 : }
522 0 : mIsAnyMemberPresent = true;
523 0 : return true;
524 : }
525 :
526 : bool
527 0 : MessageEventInit::ToObjectInternal(JSContext* cx, JS::MutableHandle<JS::Value> rval) const
528 : {
529 0 : MessageEventInitAtoms* atomsCache = GetAtomCache<MessageEventInitAtoms>(cx);
530 0 : if (!*reinterpret_cast<jsid**>(atomsCache) && !InitIds(cx, atomsCache)) {
531 0 : return false;
532 : }
533 :
534 : // Per spec, we define the parent's members first
535 0 : if (!EventInit::ToObjectInternal(cx, rval)) {
536 0 : return false;
537 : }
538 0 : JS::Rooted<JSObject*> obj(cx, &rval.toObject());
539 :
540 : do {
541 : // block for our 'break' successCode and scope for 'temp' and 'currentValue'
542 0 : JS::Rooted<JS::Value> temp(cx);
543 0 : JS::Value const & currentValue = mData;
544 0 : JS::ExposeValueToActiveJS(currentValue);
545 0 : temp.set(currentValue);
546 0 : if (!MaybeWrapValue(cx, &temp)) {
547 0 : return false;
548 : }
549 0 : if (!JS_DefinePropertyById(cx, obj, atomsCache->data_id, temp, JSPROP_ENUMERATE)) {
550 0 : return false;
551 : }
552 0 : break;
553 : } while(0);
554 :
555 : do {
556 : // block for our 'break' successCode and scope for 'temp' and 'currentValue'
557 0 : JS::Rooted<JS::Value> temp(cx);
558 0 : nsString const & currentValue = mLastEventId;
559 0 : if (!xpc::NonVoidStringToJsval(cx, currentValue, &temp)) {
560 0 : return false;
561 : }
562 0 : if (!JS_DefinePropertyById(cx, obj, atomsCache->lastEventId_id, temp, JSPROP_ENUMERATE)) {
563 0 : return false;
564 : }
565 0 : break;
566 : } while(0);
567 :
568 : do {
569 : // block for our 'break' successCode and scope for 'temp' and 'currentValue'
570 0 : JS::Rooted<JS::Value> temp(cx);
571 0 : nsString const & currentValue = mOrigin;
572 0 : if (!xpc::NonVoidStringToJsval(cx, currentValue, &temp)) {
573 0 : return false;
574 : }
575 0 : if (!JS_DefinePropertyById(cx, obj, atomsCache->origin_id, temp, JSPROP_ENUMERATE)) {
576 0 : return false;
577 : }
578 0 : break;
579 : } while(0);
580 :
581 : do {
582 : // block for our 'break' successCode and scope for 'temp' and 'currentValue'
583 0 : JS::Rooted<JS::Value> temp(cx);
584 0 : Sequence<OwningNonNull<mozilla::dom::MessagePort>> const & currentValue = mPorts;
585 :
586 0 : uint32_t length = currentValue.Length();
587 0 : JS::Rooted<JSObject*> returnArray(cx, JS_NewArrayObject(cx, length));
588 0 : if (!returnArray) {
589 0 : return false;
590 : }
591 : // Scope for 'tmp'
592 : {
593 0 : JS::Rooted<JS::Value> tmp(cx);
594 0 : for (uint32_t sequenceIdx0 = 0; sequenceIdx0 < length; ++sequenceIdx0) {
595 : // Control block to let us common up the JS_DefineElement calls when there
596 : // are different ways to succeed at wrapping the object.
597 : do {
598 0 : if (!GetOrCreateDOMReflector(cx, currentValue[sequenceIdx0], &tmp)) {
599 0 : MOZ_ASSERT(true || JS_IsExceptionPending(cx));
600 0 : return false;
601 : }
602 0 : break;
603 : } while (0);
604 0 : if (!JS_DefineElement(cx, returnArray, sequenceIdx0, tmp,
605 : JSPROP_ENUMERATE)) {
606 0 : return false;
607 : }
608 : }
609 : }
610 0 : temp.setObject(*returnArray);
611 0 : if (!JS_DefinePropertyById(cx, obj, atomsCache->ports_id, temp, JSPROP_ENUMERATE)) {
612 0 : return false;
613 : }
614 0 : break;
615 : } while(0);
616 :
617 : do {
618 : // block for our 'break' successCode and scope for 'temp' and 'currentValue'
619 0 : JS::Rooted<JS::Value> temp(cx);
620 0 : Nullable<OwningWindowProxyOrMessagePortOrServiceWorker > const & currentValue = mSource;
621 0 : if (currentValue.IsNull()) {
622 0 : temp.setNull();
623 0 : if (!JS_DefinePropertyById(cx, obj, atomsCache->source_id, temp, JSPROP_ENUMERATE)) {
624 0 : return false;
625 : }
626 0 : break;
627 : }
628 0 : if (!currentValue.Value().ToJSVal(cx, obj, &temp)) {
629 0 : return false;
630 : }
631 0 : if (!JS_DefinePropertyById(cx, obj, atomsCache->source_id, temp, JSPROP_ENUMERATE)) {
632 0 : return false;
633 : }
634 0 : break;
635 : } while(0);
636 :
637 0 : return true;
638 : }
639 :
640 : void
641 0 : MessageEventInit::TraceDictionary(JSTracer* trc)
642 : {
643 0 : EventInit::TraceDictionary(trc);
644 0 : JS::UnsafeTraceRoot(trc, &mData, "MessageEventInit.mData");
645 0 : }
646 :
647 : namespace binding_detail {
648 : } // namespace binding_detail
649 :
650 :
651 : namespace MessageEventBinding {
652 :
653 : static_assert(IsRefcounted<NativeType>::value == IsRefcounted<EventBinding::NativeType>::value,
654 : "Can't inherit from an interface with a different ownership model.");
655 :
656 : static bool
657 0 : get_data(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MessageEvent* self, JSJitGetterCallArgs args)
658 : {
659 0 : binding_detail::FastErrorResult rv;
660 0 : JS::Rooted<JS::Value> result(cx);
661 0 : self->GetData(cx, &result, rv);
662 0 : if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
663 0 : return false;
664 : }
665 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
666 0 : JS::ExposeValueToActiveJS(result);
667 0 : args.rval().set(result);
668 0 : if (!MaybeWrapValue(cx, args.rval())) {
669 0 : return false;
670 : }
671 0 : return true;
672 : }
673 :
674 : static const JSJitInfo data_getterinfo = {
675 : { (JSJitGetterOp)get_data },
676 : { prototypes::id::MessageEvent },
677 : { PrototypeTraits<prototypes::id::MessageEvent>::Depth },
678 : JSJitInfo::Getter,
679 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
680 : JSVAL_TYPE_UNKNOWN, /* returnType. Not relevant for setters. */
681 : false, /* isInfallible. False in setters. */
682 : false, /* isMovable. Not relevant for setters. */
683 : false, /* isEliminatable. Not relevant for setters. */
684 : false, /* isAlwaysInSlot. Only relevant for getters. */
685 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
686 : false, /* isTypedMethod. Only relevant for methods. */
687 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
688 : };
689 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
690 : static_assert(0 < 2, "There is no slot for us");
691 :
692 : static bool
693 0 : get_origin(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MessageEvent* self, JSJitGetterCallArgs args)
694 : {
695 0 : DOMString result;
696 0 : self->GetOrigin(result);
697 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
698 0 : if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
699 0 : return false;
700 : }
701 0 : return true;
702 : }
703 :
704 : static const JSJitInfo origin_getterinfo = {
705 : { (JSJitGetterOp)get_origin },
706 : { prototypes::id::MessageEvent },
707 : { PrototypeTraits<prototypes::id::MessageEvent>::Depth },
708 : JSJitInfo::Getter,
709 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
710 : JSVAL_TYPE_STRING, /* returnType. Not relevant for setters. */
711 : false, /* isInfallible. False in setters. */
712 : false, /* isMovable. Not relevant for setters. */
713 : false, /* isEliminatable. Not relevant for setters. */
714 : false, /* isAlwaysInSlot. Only relevant for getters. */
715 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
716 : false, /* isTypedMethod. Only relevant for methods. */
717 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
718 : };
719 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
720 : static_assert(0 < 2, "There is no slot for us");
721 :
722 : static bool
723 0 : get_lastEventId(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MessageEvent* self, JSJitGetterCallArgs args)
724 : {
725 0 : DOMString result;
726 0 : self->GetLastEventId(result);
727 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
728 0 : if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
729 0 : return false;
730 : }
731 0 : return true;
732 : }
733 :
734 : static const JSJitInfo lastEventId_getterinfo = {
735 : { (JSJitGetterOp)get_lastEventId },
736 : { prototypes::id::MessageEvent },
737 : { PrototypeTraits<prototypes::id::MessageEvent>::Depth },
738 : JSJitInfo::Getter,
739 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
740 : JSVAL_TYPE_STRING, /* returnType. Not relevant for setters. */
741 : false, /* isInfallible. False in setters. */
742 : false, /* isMovable. Not relevant for setters. */
743 : false, /* isEliminatable. Not relevant for setters. */
744 : false, /* isAlwaysInSlot. Only relevant for getters. */
745 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
746 : false, /* isTypedMethod. Only relevant for methods. */
747 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
748 : };
749 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
750 : static_assert(0 < 2, "There is no slot for us");
751 :
752 : static bool
753 0 : get_source(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MessageEvent* self, JSJitGetterCallArgs args)
754 : {
755 0 : Nullable<OwningWindowProxyOrMessagePortOrServiceWorker> result;
756 0 : self->GetSource(result);
757 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
758 0 : if (result.IsNull()) {
759 0 : args.rval().setNull();
760 0 : return true;
761 : }
762 0 : if (!result.Value().ToJSVal(cx, obj, args.rval())) {
763 0 : return false;
764 : }
765 0 : return true;
766 : }
767 :
768 : static const JSJitInfo source_getterinfo = {
769 : { (JSJitGetterOp)get_source },
770 : { prototypes::id::MessageEvent },
771 : { PrototypeTraits<prototypes::id::MessageEvent>::Depth },
772 : JSJitInfo::Getter,
773 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
774 : JSVAL_TYPE_UNKNOWN, /* returnType. Not relevant for setters. */
775 : false, /* isInfallible. False in setters. */
776 : false, /* isMovable. Not relevant for setters. */
777 : false, /* isEliminatable. Not relevant for setters. */
778 : false, /* isAlwaysInSlot. Only relevant for getters. */
779 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
780 : false, /* isTypedMethod. Only relevant for methods. */
781 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
782 : };
783 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
784 : static_assert(0 < 2, "There is no slot for us");
785 :
786 : static bool
787 0 : get_ports(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MessageEvent* self, JSJitGetterCallArgs args)
788 : {
789 : // Have to either root across the getter call or reget after.
790 : bool isXray;
791 0 : JS::Rooted<JSObject*> slotStorage(cx, GetCachedSlotStorageObject(cx, obj, &isXray));
792 0 : if (!slotStorage) {
793 0 : return false;
794 : }
795 0 : const size_t slotIndex = isXray ? (xpc::JSSLOT_EXPANDO_COUNT + 0) : (DOM_INSTANCE_RESERVED_SLOTS + 0);
796 0 : MOZ_ASSERT(JSCLASS_RESERVED_SLOTS(js::GetObjectClass(slotStorage)) > slotIndex);
797 : {
798 : // Scope for cachedVal
799 0 : JS::Value cachedVal = js::GetReservedSlot(slotStorage, slotIndex);
800 0 : if (!cachedVal.isUndefined()) {
801 0 : args.rval().set(cachedVal);
802 : // The cached value is in the compartment of slotStorage,
803 : // so wrap into the caller compartment as needed.
804 0 : return MaybeWrapNonDOMObjectValue(cx, args.rval());
805 : }
806 : }
807 :
808 0 : nsTArray<StrongPtrForMember<mozilla::dom::MessagePort>::Type> result;
809 0 : self->GetPorts(result);
810 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
811 : {
812 0 : JS::Rooted<JSObject*> conversionScope(cx, isXray ? obj : slotStorage);
813 0 : JSAutoCompartment ac(cx, conversionScope);
814 : do { // block we break out of when done wrapping
815 :
816 0 : uint32_t length = result.Length();
817 0 : JS::Rooted<JSObject*> returnArray(cx, JS_NewArrayObject(cx, length));
818 0 : if (!returnArray) {
819 0 : return false;
820 : }
821 : // Scope for 'tmp'
822 : {
823 0 : JS::Rooted<JS::Value> tmp(cx);
824 0 : for (uint32_t sequenceIdx0 = 0; sequenceIdx0 < length; ++sequenceIdx0) {
825 : // Control block to let us common up the JS_DefineElement calls when there
826 : // are different ways to succeed at wrapping the object.
827 : do {
828 0 : if (!GetOrCreateDOMReflector(cx, result[sequenceIdx0], &tmp)) {
829 0 : MOZ_ASSERT(true || JS_IsExceptionPending(cx));
830 0 : return false;
831 : }
832 0 : break;
833 : } while (0);
834 0 : if (!JS_DefineElement(cx, returnArray, sequenceIdx0, tmp,
835 : JSPROP_ENUMERATE)) {
836 0 : return false;
837 : }
838 : }
839 : }
840 0 : args.rval().setObject(*returnArray);
841 0 : break;
842 : } while (0);
843 0 : JS::Rooted<JSObject*> rvalObj(cx, &args.rval().toObject());
844 0 : if (!JS_FreezeObject(cx, rvalObj)) {
845 0 : return false;
846 : }
847 : }
848 : { // And now store things in the compartment of our slotStorage.
849 0 : JSAutoCompartment ac(cx, slotStorage);
850 : // Make a copy so that we don't do unnecessary wrapping on args.rval().
851 0 : JS::Rooted<JS::Value> storedVal(cx, args.rval());
852 0 : if (!MaybeWrapNonDOMObjectValue(cx, &storedVal)) {
853 0 : return false;
854 : }
855 0 : js::SetReservedSlot(slotStorage, slotIndex, storedVal);
856 0 : if (!isXray) {
857 : // In the Xray case we don't need to do this, because getting the
858 : // expando object already preserved our wrapper.
859 0 : PreserveWrapper(self);
860 : }
861 : }
862 : // And now make sure args.rval() is in the caller compartment
863 0 : return MaybeWrapNonDOMObjectValue(cx, args.rval());
864 : }
865 :
866 : static const JSJitInfo ports_getterinfo = {
867 : { (JSJitGetterOp)get_ports },
868 : { prototypes::id::MessageEvent },
869 : { PrototypeTraits<prototypes::id::MessageEvent>::Depth },
870 : JSJitInfo::Getter,
871 : JSJitInfo::AliasDOMSets, /* aliasSet. Not relevant for setters. */
872 : JSVAL_TYPE_OBJECT, /* returnType. Not relevant for setters. */
873 : false, /* isInfallible. False in setters. */
874 : true, /* isMovable. Not relevant for setters. */
875 : true, /* isEliminatable. Not relevant for setters. */
876 : false, /* isAlwaysInSlot. Only relevant for getters. */
877 : true, /* isLazilyCachedInSlot. Only relevant for getters. */
878 : false, /* isTypedMethod. Only relevant for methods. */
879 : (DOM_INSTANCE_RESERVED_SLOTS + 0) /* Reserved slot index, if we're stored in a slot, else 0. */
880 : };
881 : static_assert((DOM_INSTANCE_RESERVED_SLOTS + 0) <= JSJitInfo::maxSlotIndex, "We won't fit");
882 : static_assert((DOM_INSTANCE_RESERVED_SLOTS + 0) < 2, "There is no slot for us");
883 :
884 : static bool
885 0 : initMessageEvent(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MessageEvent* self, const JSJitMethodCallArgs& args)
886 : {
887 0 : if (MOZ_UNLIKELY(args.length() < 1)) {
888 0 : return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "MessageEvent.initMessageEvent");
889 : }
890 0 : binding_detail::FakeString arg0;
891 0 : if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
892 0 : return false;
893 : }
894 : bool arg1;
895 0 : if (args.hasDefined(1)) {
896 0 : if (!ValueToPrimitive<bool, eDefault>(cx, args[1], &arg1)) {
897 0 : return false;
898 : }
899 : } else {
900 0 : arg1 = false;
901 : }
902 : bool arg2;
903 0 : if (args.hasDefined(2)) {
904 0 : if (!ValueToPrimitive<bool, eDefault>(cx, args[2], &arg2)) {
905 0 : return false;
906 : }
907 : } else {
908 0 : arg2 = false;
909 : }
910 0 : JS::Rooted<JS::Value> arg3(cx);
911 0 : if (args.hasDefined(3)) {
912 0 : arg3 = args[3];
913 : } else {
914 0 : arg3 = JS::NullValue();
915 : }
916 0 : binding_detail::FakeString arg4;
917 0 : if (args.hasDefined(4)) {
918 0 : if (!ConvertJSValueToString(cx, args[4], eStringify, eStringify, arg4)) {
919 0 : return false;
920 : }
921 : } else {
922 : static const char16_t data[] = { 0 };
923 0 : arg4.Rebind(data, ArrayLength(data) - 1);
924 : }
925 0 : binding_detail::FakeString arg5;
926 0 : if (args.hasDefined(5)) {
927 0 : if (!ConvertJSValueToString(cx, args[5], eStringify, eStringify, arg5)) {
928 0 : return false;
929 : }
930 : } else {
931 : static const char16_t data[] = { 0 };
932 0 : arg5.Rebind(data, ArrayLength(data) - 1);
933 : }
934 0 : Nullable<WindowProxyOrMessagePortOrServiceWorker > arg6;
935 0 : Maybe<WindowProxyOrMessagePortOrServiceWorkerArgument> arg6_holder;
936 0 : if (!(args.hasDefined(6)) || args[6].isNullOrUndefined()) {
937 0 : arg6.SetNull();
938 : } else {
939 0 : arg6_holder.emplace(arg6.SetValue());
940 : {
941 0 : bool done = false, failed = false, tryNext;
942 0 : if (args[6].isObject()) {
943 0 : done = (failed = !arg6_holder.ref().TrySetToWindowProxy(cx, args[6], tryNext, false)) || !tryNext ||
944 0 : (failed = !arg6_holder.ref().TrySetToMessagePort(cx, args[6], tryNext, false)) || !tryNext ||
945 0 : (failed = !arg6_holder.ref().TrySetToServiceWorker(cx, args[6], tryNext, false)) || !tryNext;
946 :
947 : }
948 0 : if (failed) {
949 0 : return false;
950 : }
951 0 : if (!done) {
952 0 : ThrowErrorMessage(cx, MSG_NOT_IN_UNION, "Argument 7 of MessageEvent.initMessageEvent", "WindowProxy, MessagePort, ServiceWorker");
953 0 : return false;
954 : }
955 : }
956 : }
957 0 : binding_detail::AutoSequence<OwningNonNull<mozilla::dom::MessagePort>> arg7;
958 0 : if (args.hasDefined(7)) {
959 0 : if (args[7].isObject()) {
960 0 : JS::ForOfIterator iter(cx);
961 0 : if (!iter.init(args[7], JS::ForOfIterator::AllowNonIterable)) {
962 0 : return false;
963 : }
964 0 : if (!iter.valueIsIterable()) {
965 0 : ThrowErrorMessage(cx, MSG_NOT_SEQUENCE, "Argument 8 of MessageEvent.initMessageEvent");
966 0 : return false;
967 : }
968 0 : binding_detail::AutoSequence<OwningNonNull<mozilla::dom::MessagePort>> &arr = arg7;
969 0 : JS::Rooted<JS::Value> temp(cx);
970 : while (true) {
971 : bool done;
972 0 : if (!iter.next(&temp, &done)) {
973 0 : return false;
974 : }
975 0 : if (done) {
976 0 : break;
977 : }
978 0 : OwningNonNull<mozilla::dom::MessagePort>* slotPtr = arr.AppendElement(mozilla::fallible);
979 0 : if (!slotPtr) {
980 0 : JS_ReportOutOfMemory(cx);
981 0 : return false;
982 : }
983 0 : OwningNonNull<mozilla::dom::MessagePort>& slot = *slotPtr;
984 0 : if (temp.isObject()) {
985 : static_assert(IsRefcounted<mozilla::dom::MessagePort>::value, "We can only store refcounted classes.");{
986 0 : nsresult rv = UnwrapObject<prototypes::id::MessagePort, mozilla::dom::MessagePort>(&temp, slot);
987 0 : if (NS_FAILED(rv)) {
988 0 : ThrowErrorMessage(cx, MSG_DOES_NOT_IMPLEMENT_INTERFACE, "Element of argument 8 of MessageEvent.initMessageEvent", "MessagePort");
989 0 : return false;
990 : }
991 : }
992 : } else {
993 0 : ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Element of argument 8 of MessageEvent.initMessageEvent");
994 0 : return false;
995 : }
996 0 : }
997 : } else {
998 0 : ThrowErrorMessage(cx, MSG_NOT_SEQUENCE, "Argument 8 of MessageEvent.initMessageEvent");
999 0 : return false;
1000 : }
1001 : } else {
1002 : /* Array is already empty; nothing to do */
1003 : }
1004 0 : self->InitMessageEvent(cx, NonNullHelper(Constify(arg0)), arg1, arg2, arg3, NonNullHelper(Constify(arg4)), NonNullHelper(Constify(arg5)), Constify(arg6), Constify(arg7));
1005 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
1006 0 : args.rval().setUndefined();
1007 0 : return true;
1008 : }
1009 :
1010 : static const JSJitInfo initMessageEvent_methodinfo = {
1011 : { (JSJitGetterOp)initMessageEvent },
1012 : { prototypes::id::MessageEvent },
1013 : { PrototypeTraits<prototypes::id::MessageEvent>::Depth },
1014 : JSJitInfo::Method,
1015 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
1016 : JSVAL_TYPE_UNDEFINED, /* returnType. Not relevant for setters. */
1017 : false, /* isInfallible. False in setters. */
1018 : false, /* isMovable. Not relevant for setters. */
1019 : false, /* isEliminatable. Not relevant for setters. */
1020 : false, /* isAlwaysInSlot. Only relevant for getters. */
1021 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
1022 : false, /* isTypedMethod. Only relevant for methods. */
1023 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
1024 : };
1025 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
1026 : static_assert(0 < 2, "There is no slot for us");
1027 :
1028 : static bool
1029 0 : get_isTrusted(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MessageEvent* self, JSJitGetterCallArgs args)
1030 : {
1031 0 : bool result(self->IsTrusted());
1032 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
1033 0 : args.rval().setBoolean(result);
1034 0 : return true;
1035 : }
1036 :
1037 : static const JSJitInfo isTrusted_getterinfo = {
1038 : { (JSJitGetterOp)get_isTrusted },
1039 : { prototypes::id::MessageEvent },
1040 : { PrototypeTraits<prototypes::id::MessageEvent>::Depth },
1041 : JSJitInfo::Getter,
1042 : JSJitInfo::AliasDOMSets, /* aliasSet. Not relevant for setters. */
1043 : JSVAL_TYPE_BOOLEAN, /* returnType. Not relevant for setters. */
1044 : true, /* isInfallible. False in setters. */
1045 : true, /* isMovable. Not relevant for setters. */
1046 : true, /* isEliminatable. Not relevant for setters. */
1047 : false, /* isAlwaysInSlot. Only relevant for getters. */
1048 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
1049 : false, /* isTypedMethod. Only relevant for methods. */
1050 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
1051 : };
1052 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
1053 : static_assert(0 < 2, "There is no slot for us");
1054 :
1055 : static bool
1056 1 : _addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
1057 : {
1058 1 : mozilla::dom::MessageEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::MessageEvent>(obj);
1059 : // We don't want to preserve if we don't have a wrapper, and we
1060 : // obviously can't preserve if we're not initialized.
1061 1 : if (self && self->GetWrapperPreserveColor()) {
1062 0 : PreserveWrapper(self);
1063 : }
1064 1 : return true;
1065 : }
1066 :
1067 : static void
1068 0 : _finalize(js::FreeOp* fop, JSObject* obj)
1069 : {
1070 0 : mozilla::dom::MessageEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::MessageEvent>(obj);
1071 0 : if (self) {
1072 0 : ClearWrapper(self, self, obj);
1073 0 : AddForDeferredFinalization<mozilla::dom::MessageEvent>(self);
1074 : }
1075 0 : }
1076 :
1077 : static void
1078 0 : _objectMoved(JSObject* obj, const JSObject* old)
1079 : {
1080 0 : mozilla::dom::MessageEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::MessageEvent>(obj);
1081 0 : if (self) {
1082 0 : UpdateWrapper(self, self, obj, old);
1083 : }
1084 0 : }
1085 :
1086 : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
1087 : #if defined(__clang__)
1088 : #pragma clang diagnostic push
1089 : #pragma clang diagnostic ignored "-Wmissing-braces"
1090 : #endif
1091 : static const JSFunctionSpec sMethods_specs[] = {
1092 : JS_FNSPEC("initMessageEvent", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&initMessageEvent_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
1093 : JS_FS_END
1094 : };
1095 : #if defined(__clang__)
1096 : #pragma clang diagnostic pop
1097 : #endif
1098 :
1099 :
1100 : // Can't be const because the pref-enabled boolean needs to be writable
1101 : static Prefable<const JSFunctionSpec> sMethods[] = {
1102 : { nullptr, &sMethods_specs[0] },
1103 : { nullptr, nullptr }
1104 : };
1105 :
1106 : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
1107 : "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
1108 : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
1109 : "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
1110 :
1111 : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
1112 : #if defined(__clang__)
1113 : #pragma clang diagnostic push
1114 : #pragma clang diagnostic ignored "-Wmissing-braces"
1115 : #endif
1116 : static const JSPropertySpec sAttributes_specs[] = {
1117 : { "data", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &data_getterinfo, nullptr, nullptr },
1118 : { "origin", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &origin_getterinfo, nullptr, nullptr },
1119 : { "lastEventId", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &lastEventId_getterinfo, nullptr, nullptr },
1120 : { "source", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &source_getterinfo, nullptr, nullptr },
1121 : { "ports", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &ports_getterinfo, nullptr, nullptr },
1122 : { nullptr, 0, nullptr, nullptr, nullptr, nullptr }
1123 : };
1124 : #if defined(__clang__)
1125 : #pragma clang diagnostic pop
1126 : #endif
1127 :
1128 :
1129 : // Can't be const because the pref-enabled boolean needs to be writable
1130 : static Prefable<const JSPropertySpec> sAttributes[] = {
1131 : { nullptr, &sAttributes_specs[0] },
1132 : { nullptr, nullptr }
1133 : };
1134 :
1135 : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
1136 : "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
1137 : static_assert(5 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
1138 : "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
1139 :
1140 : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
1141 : #if defined(__clang__)
1142 : #pragma clang diagnostic push
1143 : #pragma clang diagnostic ignored "-Wmissing-braces"
1144 : #endif
1145 : static const JSPropertySpec sUnforgeableAttributes_specs[] = {
1146 : { "isTrusted", JSPROP_SHARED | JSPROP_ENUMERATE | JSPROP_PERMANENT, GenericBindingGetter, &isTrusted_getterinfo, nullptr, nullptr },
1147 : { nullptr, 0, nullptr, nullptr, nullptr, nullptr }
1148 : };
1149 : #if defined(__clang__)
1150 : #pragma clang diagnostic pop
1151 : #endif
1152 :
1153 :
1154 : // Can't be const because the pref-enabled boolean needs to be writable
1155 : static Prefable<const JSPropertySpec> sUnforgeableAttributes[] = {
1156 : { nullptr, &sUnforgeableAttributes_specs[0] },
1157 : { nullptr, nullptr }
1158 : };
1159 :
1160 : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
1161 : "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
1162 : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
1163 : "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
1164 :
1165 :
1166 : static uint16_t sNativeProperties_sortedPropertyIndices[7];
1167 : static PropertyInfo sNativeProperties_propertyInfos[7];
1168 :
1169 : static const NativePropertiesN<3> sNativeProperties = {
1170 : false, 0,
1171 : false, 0,
1172 : true, 0 /* sMethods */,
1173 : true, 1 /* sAttributes */,
1174 : false, 0,
1175 : true, 2 /* sUnforgeableAttributes */,
1176 : false, 0,
1177 : -1,
1178 : 7,
1179 : sNativeProperties_sortedPropertyIndices,
1180 : {
1181 : { sMethods, &sNativeProperties_propertyInfos[0] },
1182 : { sAttributes, &sNativeProperties_propertyInfos[1] },
1183 : { sUnforgeableAttributes, &sNativeProperties_propertyInfos[6] }
1184 : }
1185 : };
1186 : static_assert(7 < 1ull << CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount),
1187 : "We have a property info count that is oversized");
1188 :
1189 : static bool
1190 0 : _constructor(JSContext* cx, unsigned argc, JS::Value* vp)
1191 : {
1192 0 : JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
1193 0 : JS::Rooted<JSObject*> obj(cx, &args.callee());
1194 0 : if (!args.isConstructing()) {
1195 : // XXXbz wish I could get the name from the callee instead of
1196 : // Adding more relocations
1197 0 : return ThrowConstructorWithoutNew(cx, "MessageEvent");
1198 : }
1199 :
1200 0 : GlobalObject global(cx, obj);
1201 0 : if (global.Failed()) {
1202 0 : return false;
1203 : }
1204 :
1205 0 : JS::Rooted<JSObject*> desiredProto(cx);
1206 0 : if (!GetDesiredProto(cx, args, &desiredProto)) {
1207 0 : return false;
1208 : }
1209 :
1210 0 : if (MOZ_UNLIKELY(args.length() < 1)) {
1211 0 : return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "MessageEvent");
1212 : }
1213 0 : bool objIsXray = xpc::WrapperFactory::IsXrayWrapper(obj);
1214 0 : binding_detail::FakeString arg0;
1215 0 : if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
1216 0 : return false;
1217 : }
1218 0 : RootedDictionary<binding_detail::FastMessageEventInit> arg1(cx);
1219 0 : if (!arg1.Init(cx, (args.hasDefined(1)) ? args[1] : JS::NullHandleValue, "Argument 2 of MessageEvent.constructor", false)) {
1220 0 : return false;
1221 : }
1222 0 : Maybe<JSAutoCompartment> ac;
1223 0 : if (objIsXray) {
1224 0 : obj = js::CheckedUnwrap(obj);
1225 0 : if (!obj) {
1226 0 : return false;
1227 : }
1228 0 : ac.emplace(cx, obj);
1229 0 : if (!JS_WrapObject(cx, &desiredProto)) {
1230 0 : return false;
1231 : }
1232 0 : if (!JS_WrapValue(cx, JS::MutableHandle<JS::Value>::fromMarkedLocation(&arg1.mData))) {
1233 0 : return false;
1234 : }
1235 : }
1236 0 : binding_detail::FastErrorResult rv;
1237 0 : auto result(StrongOrRawPtr<mozilla::dom::MessageEvent>(mozilla::dom::MessageEvent::Constructor(global, NonNullHelper(Constify(arg0)), Constify(arg1), rv)));
1238 0 : if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
1239 0 : return false;
1240 : }
1241 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
1242 : static_assert(!IsPointer<decltype(result)>::value,
1243 : "NewObject implies that we need to keep the object alive with a strong reference.");
1244 0 : if (!GetOrCreateDOMReflector(cx, result, args.rval(), desiredProto)) {
1245 0 : MOZ_ASSERT(true || JS_IsExceptionPending(cx));
1246 0 : return false;
1247 : }
1248 0 : return true;
1249 : }
1250 :
1251 : static const js::ClassOps sInterfaceObjectClassOps = {
1252 : nullptr, /* addProperty */
1253 : nullptr, /* delProperty */
1254 : nullptr, /* getProperty */
1255 : nullptr, /* setProperty */
1256 : nullptr, /* enumerate */
1257 : nullptr, /* newEnumerate */
1258 : nullptr, /* resolve */
1259 : nullptr, /* mayResolve */
1260 : nullptr, /* finalize */
1261 : _constructor, /* call */
1262 : nullptr, /* hasInstance */
1263 : _constructor, /* construct */
1264 : nullptr, /* trace */
1265 : };
1266 :
1267 : static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
1268 : {
1269 : "Function",
1270 : JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
1271 : &sInterfaceObjectClassOps,
1272 : JS_NULL_CLASS_SPEC,
1273 : JS_NULL_CLASS_EXT,
1274 : &sInterfaceObjectClassObjectOps
1275 : },
1276 : eInterface,
1277 : true,
1278 : prototypes::id::MessageEvent,
1279 : PrototypeTraits<prototypes::id::MessageEvent>::Depth,
1280 : sNativePropertyHooks,
1281 : "function MessageEvent() {\n [native code]\n}",
1282 : EventBinding::GetConstructorObject
1283 : };
1284 :
1285 : static const DOMIfaceAndProtoJSClass sPrototypeClass = {
1286 : {
1287 : "MessageEventPrototype",
1288 : JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE + 1 /* slot for the JSObject holding the unforgeable properties */),
1289 : JS_NULL_CLASS_OPS,
1290 : JS_NULL_CLASS_SPEC,
1291 : JS_NULL_CLASS_EXT,
1292 : JS_NULL_OBJECT_OPS
1293 : },
1294 : eInterfacePrototype,
1295 : false,
1296 : prototypes::id::MessageEvent,
1297 : PrototypeTraits<prototypes::id::MessageEvent>::Depth,
1298 : sNativePropertyHooks,
1299 : "[object MessageEventPrototype]",
1300 : EventBinding::GetProtoObject
1301 : };
1302 :
1303 : JSObject*
1304 0 : DefineDOMInterface(JSContext* aCx, JS::Handle<JSObject*> aGlobal, JS::Handle<jsid> id, bool aDefineOnGlobal)
1305 : {
1306 0 : return GetConstructorObjectHandle(aCx, aDefineOnGlobal);
1307 : }
1308 :
1309 : static const js::ClassOps sClassOps = {
1310 : _addProperty, /* addProperty */
1311 : nullptr, /* delProperty */
1312 : nullptr, /* getProperty */
1313 : nullptr, /* setProperty */
1314 : nullptr, /* enumerate */
1315 : nullptr, /* newEnumerate */
1316 : nullptr, /* resolve */
1317 : nullptr, /* mayResolve */
1318 : _finalize, /* finalize */
1319 : nullptr, /* call */
1320 : nullptr, /* hasInstance */
1321 : nullptr, /* construct */
1322 : nullptr, /* trace */
1323 : };
1324 :
1325 : static const js::ClassExtension sClassExtension = {
1326 : nullptr, /* weakmapKeyDelegateOp */
1327 : _objectMoved /* objectMovedOp */
1328 : };
1329 :
1330 : static const DOMJSClass sClass = {
1331 : { "MessageEvent",
1332 : JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(2) | JSCLASS_SKIP_NURSERY_FINALIZE,
1333 : &sClassOps,
1334 : JS_NULL_CLASS_SPEC,
1335 : &sClassExtension,
1336 : JS_NULL_OBJECT_OPS
1337 : },
1338 : { prototypes::id::Event, prototypes::id::MessageEvent, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
1339 : IsBaseOf<nsISupports, mozilla::dom::MessageEvent >::value,
1340 : sNativePropertyHooks,
1341 : FindAssociatedGlobalForNative<mozilla::dom::MessageEvent>::Get,
1342 : GetProtoObjectHandle,
1343 : GetCCParticipant<mozilla::dom::MessageEvent>::Get()
1344 : };
1345 : static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
1346 : "Must have the right minimal number of reserved slots.");
1347 : static_assert(2 >= 2,
1348 : "Must have enough reserved slots.");
1349 :
1350 : const JSClass*
1351 0 : GetJSClass()
1352 : {
1353 0 : return sClass.ToJSClass();
1354 : }
1355 :
1356 : bool
1357 0 : Wrap(JSContext* aCx, mozilla::dom::MessageEvent* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
1358 : {
1359 : MOZ_ASSERT(static_cast<mozilla::dom::MessageEvent*>(aObject) ==
1360 : reinterpret_cast<mozilla::dom::MessageEvent*>(aObject),
1361 : "Multiple inheritance for mozilla::dom::MessageEvent is broken.");
1362 : MOZ_ASSERT(static_cast<mozilla::dom::Event*>(aObject) ==
1363 : reinterpret_cast<mozilla::dom::Event*>(aObject),
1364 : "Multiple inheritance for mozilla::dom::Event is broken.");
1365 0 : MOZ_ASSERT(ToSupportsIsCorrect(aObject));
1366 0 : MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
1367 0 : MOZ_ASSERT(!aCache->GetWrapper(),
1368 : "You should probably not be using Wrap() directly; use "
1369 : "GetOrCreateDOMReflector instead");
1370 :
1371 0 : MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
1372 : "nsISupports must be on our primary inheritance chain");
1373 :
1374 0 : JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
1375 0 : if (!global) {
1376 0 : return false;
1377 : }
1378 0 : MOZ_ASSERT(JS_IsGlobalObject(global));
1379 0 : MOZ_ASSERT(JS::ObjectIsNotGray(global));
1380 :
1381 : // That might have ended up wrapping us already, due to the wonders
1382 : // of XBL. Check for that, and bail out as needed.
1383 0 : aReflector.set(aCache->GetWrapper());
1384 0 : if (aReflector) {
1385 : #ifdef DEBUG
1386 0 : binding_detail::AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
1387 : #endif // DEBUG
1388 0 : return true;
1389 : }
1390 :
1391 0 : JSAutoCompartment ac(aCx, global);
1392 0 : JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
1393 0 : if (!canonicalProto) {
1394 0 : return false;
1395 : }
1396 0 : JS::Rooted<JSObject*> proto(aCx);
1397 0 : if (aGivenProto) {
1398 0 : proto = aGivenProto;
1399 : // Unfortunately, while aGivenProto was in the compartment of aCx
1400 : // coming in, we changed compartments to that of "parent" so may need
1401 : // to wrap the proto here.
1402 0 : if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
1403 0 : if (!JS_WrapObject(aCx, &proto)) {
1404 0 : return false;
1405 : }
1406 : }
1407 : } else {
1408 0 : proto = canonicalProto;
1409 : }
1410 :
1411 0 : BindingJSObjectCreator<mozilla::dom::MessageEvent> creator(aCx);
1412 0 : creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
1413 0 : if (!aReflector) {
1414 0 : return false;
1415 : }
1416 :
1417 0 : aCache->SetWrapper(aReflector);
1418 :
1419 : // Important: do unforgeable property setup after we have handed
1420 : // over ownership of the C++ object to obj as needed, so that if
1421 : // we fail and it ends up GCed it won't have problems in the
1422 : // finalizer trying to drop its ownership of the C++ object.
1423 : JS::Rooted<JSObject*> unforgeableHolder(aCx,
1424 0 : &js::GetReservedSlot(canonicalProto, DOM_INTERFACE_PROTO_SLOTS_BASE).toObject());
1425 0 : if (!JS_InitializePropertiesFromCompatibleNativeObject(aCx, aReflector, unforgeableHolder)) {
1426 0 : aCache->ReleaseWrapper(aObject);
1427 0 : aCache->ClearWrapper();
1428 0 : return false;
1429 : }
1430 0 : creator.InitializationSucceeded();
1431 :
1432 0 : MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
1433 : aCache->GetWrapperPreserveColor() == aReflector);
1434 : // If proto != canonicalProto, we have to preserve our wrapper;
1435 : // otherwise we won't be able to properly recreate it later, since
1436 : // we won't know what proto to use. Note that we don't check
1437 : // aGivenProto here, since it's entirely possible (and even
1438 : // somewhat common) to have a non-null aGivenProto which is the
1439 : // same as canonicalProto.
1440 0 : if (proto != canonicalProto) {
1441 0 : PreserveWrapper(aObject);
1442 : }
1443 :
1444 0 : return true;
1445 : }
1446 :
1447 : // This may allocate too many slots, because we only really need
1448 : // slots for our non-interface-typed members that we cache. But
1449 : // allocating slots only for those would make the slot index
1450 : // computations much more complicated, so let's do this the simple
1451 : // way for now.
1452 : DEFINE_XRAY_EXPANDO_CLASS(static, sXrayExpandoObjectClass, 1);
1453 :
1454 : const NativePropertyHooks sNativePropertyHooks[] = { {
1455 : nullptr,
1456 : nullptr,
1457 : nullptr,
1458 : { sNativeProperties.Upcast(), nullptr },
1459 : prototypes::id::MessageEvent,
1460 : constructors::id::MessageEvent,
1461 : EventBinding::sNativePropertyHooks,
1462 : &sXrayExpandoObjectClass
1463 : } };
1464 :
1465 : void
1466 0 : ClearCachedPortsValue(mozilla::dom::MessageEvent* aObject)
1467 : {
1468 : JSObject* obj;
1469 0 : obj = aObject->GetWrapper();
1470 0 : if (!obj) {
1471 0 : return;
1472 : }
1473 0 : js::SetReservedSlot(obj, (DOM_INSTANCE_RESERVED_SLOTS + 0), JS::UndefinedValue());
1474 0 : xpc::ClearXrayExpandoSlots(obj, (xpc::JSSLOT_EXPANDO_COUNT + 0));
1475 : }
1476 :
1477 : void
1478 1 : CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
1479 : {
1480 1 : JS::Handle<JSObject*> parentProto(EventBinding::GetProtoObjectHandle(aCx));
1481 1 : if (!parentProto) {
1482 0 : return;
1483 : }
1484 :
1485 1 : JS::Handle<JSObject*> constructorProto(EventBinding::GetConstructorObjectHandle(aCx));
1486 1 : if (!constructorProto) {
1487 0 : return;
1488 : }
1489 :
1490 : static bool sIdsInited = false;
1491 1 : if (!sIdsInited && NS_IsMainThread()) {
1492 0 : if (!InitIds(aCx, sNativeProperties.Upcast())) {
1493 0 : return;
1494 : }
1495 0 : sIdsInited = true;
1496 : }
1497 :
1498 1 : JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::MessageEvent);
1499 1 : JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::MessageEvent);
1500 1 : dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
1501 : &sPrototypeClass.mBase, protoCache,
1502 : constructorProto, &sInterfaceObjectClass.mBase, 1, nullptr,
1503 : interfaceCache,
1504 : sNativeProperties.Upcast(),
1505 : nullptr,
1506 : "MessageEvent", aDefineOnGlobal,
1507 : nullptr,
1508 1 : false);
1509 :
1510 2 : JS::Rooted<JSObject*> unforgeableHolder(aCx);
1511 : {
1512 2 : JS::Rooted<JSObject*> holderProto(aCx, *protoCache);
1513 1 : unforgeableHolder = JS_NewObjectWithoutMetadata(aCx, sClass.ToJSClass(), holderProto);
1514 1 : if (!unforgeableHolder) {
1515 0 : *protoCache = nullptr;
1516 0 : if (interfaceCache) {
1517 0 : *interfaceCache = nullptr;
1518 : }
1519 0 : return;
1520 : }
1521 : }
1522 :
1523 1 : if (!DefineUnforgeableAttributes(aCx, unforgeableHolder, sUnforgeableAttributes)) {
1524 0 : *protoCache = nullptr;
1525 0 : if (interfaceCache) {
1526 0 : *interfaceCache = nullptr;
1527 : }
1528 0 : return;
1529 : }
1530 :
1531 1 : if (*protoCache) {
1532 1 : js::SetReservedSlot(*protoCache, DOM_INTERFACE_PROTO_SLOTS_BASE,
1533 2 : JS::ObjectValue(*unforgeableHolder));
1534 : }
1535 : }
1536 :
1537 : JS::Handle<JSObject*>
1538 0 : GetProtoObjectHandle(JSContext* aCx)
1539 : {
1540 : /* Get the interface prototype object for this class. This will create the
1541 : object as needed. */
1542 0 : bool aDefineOnGlobal = true;
1543 :
1544 : /* Make sure our global is sane. Hopefully we can remove this sometime */
1545 0 : JSObject* global = JS::CurrentGlobalOrNull(aCx);
1546 0 : if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
1547 0 : return nullptr;
1548 : }
1549 :
1550 : /* Check to see whether the interface objects are already installed */
1551 0 : ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
1552 0 : if (!protoAndIfaceCache.HasEntryInSlot(prototypes::id::MessageEvent)) {
1553 0 : JS::Rooted<JSObject*> rootedGlobal(aCx, global);
1554 0 : CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
1555 : }
1556 :
1557 : /*
1558 : * The object might _still_ be null, but that's OK.
1559 : *
1560 : * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
1561 : * traced by TraceProtoAndIfaceCache() and its contents are never
1562 : * changed after they have been set.
1563 : *
1564 : * Calling address() avoids the read read barrier that does gray
1565 : * unmarking, but it's not possible for the object to be gray here.
1566 : */
1567 :
1568 0 : const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(prototypes::id::MessageEvent);
1569 0 : MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
1570 0 : return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
1571 : }
1572 :
1573 : JS::Handle<JSObject*>
1574 1 : GetConstructorObjectHandle(JSContext* aCx, bool aDefineOnGlobal)
1575 : {
1576 : /* Get the interface object for this class. This will create the object as
1577 : needed. */
1578 :
1579 : /* Make sure our global is sane. Hopefully we can remove this sometime */
1580 1 : JSObject* global = JS::CurrentGlobalOrNull(aCx);
1581 1 : if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
1582 0 : return nullptr;
1583 : }
1584 :
1585 : /* Check to see whether the interface objects are already installed */
1586 1 : ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
1587 1 : if (!protoAndIfaceCache.HasEntryInSlot(constructors::id::MessageEvent)) {
1588 2 : JS::Rooted<JSObject*> rootedGlobal(aCx, global);
1589 1 : CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
1590 : }
1591 :
1592 : /*
1593 : * The object might _still_ be null, but that's OK.
1594 : *
1595 : * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
1596 : * traced by TraceProtoAndIfaceCache() and its contents are never
1597 : * changed after they have been set.
1598 : *
1599 : * Calling address() avoids the read read barrier that does gray
1600 : * unmarking, but it's not possible for the object to be gray here.
1601 : */
1602 :
1603 1 : const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(constructors::id::MessageEvent);
1604 1 : MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
1605 1 : return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
1606 : }
1607 :
1608 : JSObject*
1609 1 : GetConstructorObject(JSContext* aCx)
1610 : {
1611 1 : return GetConstructorObjectHandle(aCx);
1612 : }
1613 :
1614 : } // namespace MessageEventBinding
1615 :
1616 :
1617 :
1618 : } // namespace dom
1619 : } // namespace mozilla
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