Coverage Report

Created: 2018-09-25 14:53

/work/obj-fuzz/dom/bindings/ExtendableEventBinding.cpp
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Source (jump to first uncovered line)
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/* THIS FILE IS AUTOGENERATED FROM ExtendableEvent.webidl BY Codegen.py - DO NOT EDIT */
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#include "EventBinding.h"
4
#include "ExtendableEventBinding.h"
5
#include "WrapperFactory.h"
6
#include "mozilla/OwningNonNull.h"
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#include "mozilla/dom/BindingUtils.h"
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#include "mozilla/dom/DOMJSClass.h"
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#include "mozilla/dom/NonRefcountedDOMObject.h"
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#include "mozilla/dom/PrimitiveConversions.h"
11
#include "mozilla/dom/Promise.h"
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#include "mozilla/dom/ScriptSettings.h"
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#include "mozilla/dom/ServiceWorkerEvents.h"
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#include "mozilla/dom/SimpleGlobalObject.h"
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#include "mozilla/dom/ToJSValue.h"
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#include "nsThreadUtils.h"
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18
namespace mozilla {
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namespace dom {
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namespace binding_detail {}; // Just to make sure it's known as a namespace
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using namespace mozilla::dom::binding_detail;
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ExtendableEventInit::ExtendableEventInit()
27
  : EventInit(FastDictionaryInitializer())
28
0
{
29
0
  // Safe to pass a null context if we pass a null value
30
0
  Init(nullptr, JS::NullHandleValue);
31
0
}
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bool
36
ExtendableEventInit::Init(JSContext* cx, JS::Handle<JS::Value> val, const char* sourceDescription, bool passedToJSImpl)
37
0
{
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0
  // Passing a null JSContext is OK only if we're initing from null,
39
0
  // Since in that case we will not have to do any property gets
40
0
  // Also evaluate isNullOrUndefined in order to avoid false-positive
41
0
  // checkers by static analysis tools
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0
  MOZ_ASSERT_IF(!cx, val.isNull() && val.isNullOrUndefined());
43
0
  // Per spec, we init the parent's members first
44
0
  if (!EventInit::Init(cx, val)) {
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0
    return false;
46
0
  }
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0
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0
  return true;
49
0
}
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bool
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ExtendableEventInit::Init(const nsAString& aJSON)
53
0
{
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0
  AutoJSAPI jsapi;
55
0
  JSObject* cleanGlobal = SimpleGlobalObject::Create(SimpleGlobalObject::GlobalType::BindingDetail);
56
0
  if (!cleanGlobal) {
57
0
    return false;
58
0
  }
59
0
  if (!jsapi.Init(cleanGlobal)) {
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0
    return false;
61
0
  }
62
0
  JSContext* cx = jsapi.cx();
63
0
  JS::Rooted<JS::Value> json(cx);
64
0
  bool ok = ParseJSON(cx, aJSON, &json);
65
0
  NS_ENSURE_TRUE(ok, false);
66
0
  return Init(cx, json);
67
0
}
68
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bool
70
ExtendableEventInit::ToObjectInternal(JSContext* cx, JS::MutableHandle<JS::Value> rval) const
71
0
{
72
0
  // Per spec, we define the parent's members first
73
0
  if (!EventInit::ToObjectInternal(cx, rval)) {
74
0
    return false;
75
0
  }
76
0
  JS::Rooted<JSObject*> obj(cx, &rval.toObject());
77
0
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0
79
0
  return true;
80
0
}
81
82
bool
83
ExtendableEventInit::ToJSON(nsAString& aJSON) const
84
0
{
85
0
  AutoJSAPI jsapi;
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0
  jsapi.Init();
87
0
  JSContext *cx = jsapi.cx();
88
0
  // It's safe to use UnprivilegedJunkScopeOrWorkerGlobal here
89
0
  // because we'll only be creating objects, in ways that have no
90
0
  // side-effects, followed by a call to JS::ToJSONMaybeSafely,
91
0
  // which likewise guarantees no side-effects for the sorts of
92
0
  // things we will pass it.
93
0
  JSAutoRealm ar(cx, UnprivilegedJunkScopeOrWorkerGlobal());
94
0
  JS::Rooted<JS::Value> val(cx);
95
0
  if (!ToObjectInternal(cx, &val)) {
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0
    return false;
97
0
  }
98
0
  JS::Rooted<JSObject*> obj(cx, &val.toObject());
99
0
  return StringifyToJSON(cx, obj, aJSON);
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0
}
101
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void
103
ExtendableEventInit::TraceDictionary(JSTracer* trc)
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0
{
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0
  EventInit::TraceDictionary(trc);
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0
}
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ExtendableEventInit&
109
ExtendableEventInit::operator=(const ExtendableEventInit& aOther)
110
0
{
111
0
  EventInit::operator=(aOther);
112
0
  return *this;
113
0
}
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namespace binding_detail {
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} // namespace binding_detail
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namespace ExtendableEvent_Binding {
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static_assert(IsRefcounted<NativeType>::value == IsRefcounted<Event_Binding::NativeType>::value,
122
              "Can't inherit from an interface with a different ownership model.");
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MOZ_CAN_RUN_SCRIPT static bool
125
waitUntil(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::ExtendableEvent* self, const JSJitMethodCallArgs& args)
126
0
{
127
0
  AUTO_PROFILER_LABEL_FAST("ExtendableEvent.waitUntil", DOM, cx);
128
0
129
0
  if (MOZ_UNLIKELY(args.length() < 1)) {
130
0
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "ExtendableEvent.waitUntil");
131
0
  }
132
0
  OwningNonNull<Promise> arg0;
133
0
  { // Scope for our GlobalObject, FastErrorResult, JSAutoRealm,
134
0
    // etc.
135
0
136
0
    JS::Rooted<JSObject*> globalObj(cx);
137
0
    globalObj = JS::CurrentGlobalOrNull(cx);
138
0
    JSAutoRealm ar(cx, globalObj);
139
0
    GlobalObject promiseGlobal(cx, globalObj);
140
0
    if (promiseGlobal.Failed()) {
141
0
      return false;
142
0
    }
143
0
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0
    JS::Rooted<JS::Value> valueToResolve(cx, args[0]);
145
0
    if (!JS_WrapValue(cx, &valueToResolve)) {
146
0
      return false;
147
0
    }
148
0
    binding_detail::FastErrorResult promiseRv;
149
0
    nsCOMPtr<nsIGlobalObject> global =
150
0
      do_QueryInterface(promiseGlobal.GetAsSupports());
151
0
    if (!global) {
152
0
      promiseRv.ThrowWithCustomCleanup(NS_ERROR_UNEXPECTED);
153
0
      MOZ_ALWAYS_TRUE(promiseRv.MaybeSetPendingException(cx));
154
0
      return false;
155
0
    }
156
0
    arg0 = Promise::Resolve(global, cx, valueToResolve,
157
0
                                    promiseRv);
158
0
    if (promiseRv.MaybeSetPendingException(cx)) {
159
0
      return false;
160
0
    }
161
0
  }
162
0
  FastErrorResult rv;
163
0
  self->WaitUntil(cx, NonNullHelper(arg0), rv);
164
0
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
165
0
    return false;
166
0
  }
167
0
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
168
0
  args.rval().setUndefined();
169
0
  return true;
170
0
}
171
172
static const JSJitInfo waitUntil_methodinfo = {
173
  { (JSJitGetterOp)waitUntil },
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  { prototypes::id::ExtendableEvent },
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  { PrototypeTraits<prototypes::id::ExtendableEvent>::Depth },
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  JSJitInfo::Method,
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  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
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  JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */
179
  false,  /* isInfallible. False in setters. */
180
  false,  /* isMovable.  Not relevant for setters. */
181
  false, /* isEliminatable.  Not relevant for setters. */
182
  false, /* isAlwaysInSlot.  Only relevant for getters. */
183
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
184
  false,  /* isTypedMethod.  Only relevant for methods. */
185
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
186
};
187
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
188
static_assert(0 < 1, "There is no slot for us");
189
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MOZ_CAN_RUN_SCRIPT static bool
191
get_isTrusted(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::ExtendableEvent* self, JSJitGetterCallArgs args)
192
0
{
193
0
  AUTO_PROFILER_LABEL_FAST("get ExtendableEvent.isTrusted", DOM, cx);
194
0
195
0
  bool result(self->IsTrusted());
196
0
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
197
0
  args.rval().setBoolean(result);
198
0
  return true;
199
0
}
200
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static const JSJitInfo isTrusted_getterinfo = {
202
  { (JSJitGetterOp)get_isTrusted },
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  { prototypes::id::ExtendableEvent },
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  { PrototypeTraits<prototypes::id::ExtendableEvent>::Depth },
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  JSJitInfo::Getter,
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  JSJitInfo::AliasDOMSets, /* aliasSet.  Not relevant for setters. */
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  JSVAL_TYPE_BOOLEAN,  /* returnType.  Not relevant for setters. */
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  true,  /* isInfallible. False in setters. */
209
  true,  /* isMovable.  Not relevant for setters. */
210
  true, /* isEliminatable.  Not relevant for setters. */
211
  false, /* isAlwaysInSlot.  Only relevant for getters. */
212
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
213
  false,  /* isTypedMethod.  Only relevant for methods. */
214
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
215
};
216
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
217
static_assert(0 < 1, "There is no slot for us");
218
219
static bool
220
_addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
221
0
{
222
0
  mozilla::dom::ExtendableEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::ExtendableEvent>(obj);
223
0
  // We don't want to preserve if we don't have a wrapper, and we
224
0
  // obviously can't preserve if we're not initialized.
225
0
  if (self && self->GetWrapperPreserveColor()) {
226
0
    PreserveWrapper(self);
227
0
  }
228
0
  return true;
229
0
}
230
231
static void
232
_finalize(js::FreeOp* fop, JSObject* obj)
233
0
{
234
0
  mozilla::dom::ExtendableEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::ExtendableEvent>(obj);
235
0
  if (self) {
236
0
    ClearWrapper(self, self, obj);
237
0
    AddForDeferredFinalization<mozilla::dom::ExtendableEvent>(self);
238
0
  }
239
0
}
240
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static size_t
242
_objectMoved(JSObject* obj, JSObject* old)
243
0
{
244
0
  mozilla::dom::ExtendableEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::ExtendableEvent>(obj);
245
0
  if (self) {
246
0
    UpdateWrapper(self, self, obj, old);
247
0
  }
248
0
249
0
  return 0;
250
0
}
251
252
// We deliberately use brace-elision to make Visual Studio produce better initalization code.
253
#if defined(__clang__)
254
#pragma clang diagnostic push
255
#pragma clang diagnostic ignored "-Wmissing-braces"
256
#endif
257
static const JSFunctionSpec sMethods_specs[] = {
258
  JS_FNSPEC("waitUntil", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&waitUntil_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
259
  JS_FS_END
260
};
261
#if defined(__clang__)
262
#pragma clang diagnostic pop
263
#endif
264
265
266
static const Prefable<const JSFunctionSpec> sMethods[] = {
267
  { nullptr, &sMethods_specs[0] },
268
  { nullptr, nullptr }
269
};
270
271
// We deliberately use brace-elision to make Visual Studio produce better initalization code.
272
#if defined(__clang__)
273
#pragma clang diagnostic push
274
#pragma clang diagnostic ignored "-Wmissing-braces"
275
#endif
276
static const JSPropertySpec sUnforgeableAttributes_specs[] = {
277
  { "isTrusted", JSPROP_ENUMERATE | JSPROP_PERMANENT, GenericGetter<NormalThisPolicy, ThrowExceptions>, &isTrusted_getterinfo, nullptr, nullptr },
278
  { nullptr, 0, nullptr, nullptr, nullptr, nullptr }
279
};
280
#if defined(__clang__)
281
#pragma clang diagnostic pop
282
#endif
283
284
285
static const Prefable<const JSPropertySpec> sUnforgeableAttributes[] = {
286
  { nullptr, &sUnforgeableAttributes_specs[0] },
287
  { nullptr, nullptr }
288
};
289
290
291
static const NativePropertiesN<2> sNativeProperties = {
292
  false, 0,
293
  false, 0,
294
  true,  0 /* sMethods */,
295
  false, 0,
296
  false, 0,
297
  true,  1 /* sUnforgeableAttributes */,
298
  false, 0,
299
  -1,
300
  0,
301
  nullptr,
302
  {
303
    { sMethods, nullptr },
304
    { sUnforgeableAttributes, nullptr }
305
  }
306
};
307
308
static bool
309
_constructor(JSContext* cx, unsigned argc, JS::Value* vp)
310
0
{
311
0
  AUTO_PROFILER_LABEL_FAST("ExtendableEvent constructor", DOM, cx);
312
0
313
0
  JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
314
0
  JS::Rooted<JSObject*> obj(cx, &args.callee());
315
0
  if (!args.isConstructing()) {
316
0
    // XXXbz wish I could get the name from the callee instead of
317
0
    // Adding more relocations
318
0
    return ThrowConstructorWithoutNew(cx, "ExtendableEvent");
319
0
  }
320
0
321
0
  JS::Rooted<JSObject*> desiredProto(cx);
322
0
  if (!GetDesiredProto(cx, args, &desiredProto)) {
323
0
    return false;
324
0
  }
325
0
326
0
  if (MOZ_UNLIKELY(args.length() < 1)) {
327
0
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "ExtendableEvent");
328
0
  }
329
0
  GlobalObject global(cx, obj);
330
0
  if (global.Failed()) {
331
0
    return false;
332
0
  }
333
0
334
0
  bool objIsXray = xpc::WrapperFactory::IsXrayWrapper(obj);
335
0
  binding_detail::FakeString arg0;
336
0
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
337
0
    return false;
338
0
  }
339
0
  binding_detail::FastExtendableEventInit arg1;
340
0
  if (!arg1.Init(cx, (args.hasDefined(1)) ? args[1] : JS::NullHandleValue,  "Argument 2 of ExtendableEvent.constructor", false)) {
341
0
    return false;
342
0
  }
343
0
  Maybe<JSAutoRealm> ar;
344
0
  if (objIsXray) {
345
0
    obj = js::CheckedUnwrap(obj);
346
0
    if (!obj) {
347
0
      return false;
348
0
    }
349
0
    ar.emplace(cx, obj);
350
0
    if (!JS_WrapObject(cx, &desiredProto)) {
351
0
      return false;
352
0
    }
353
0
  }
354
0
  FastErrorResult rv;
355
0
  auto result(StrongOrRawPtr<mozilla::dom::ExtendableEvent>(mozilla::dom::ExtendableEvent::Constructor(global, NonNullHelper(Constify(arg0)), Constify(arg1), rv)));
356
0
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
357
0
    return false;
358
0
  }
359
0
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
360
0
  static_assert(!IsPointer<decltype(result)>::value,
361
0
                "NewObject implies that we need to keep the object alive with a strong reference.");
362
0
  if (!GetOrCreateDOMReflector(cx, result, args.rval(), desiredProto)) {
363
0
    MOZ_ASSERT(JS_IsExceptionPending(cx));
364
0
    return false;
365
0
  }
366
0
  return true;
367
0
}
368
369
static const js::ClassOps sInterfaceObjectClassOps = {
370
    nullptr,               /* addProperty */
371
    nullptr,               /* delProperty */
372
    nullptr,               /* enumerate */
373
    nullptr,               /* newEnumerate */
374
    nullptr,               /* resolve */
375
    nullptr,               /* mayResolve */
376
    nullptr,               /* finalize */
377
    _constructor, /* call */
378
    nullptr,               /* hasInstance */
379
    _constructor, /* construct */
380
    nullptr,               /* trace */
381
};
382
383
static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
384
  {
385
    "Function",
386
    JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
387
    &sInterfaceObjectClassOps,
388
    JS_NULL_CLASS_SPEC,
389
    JS_NULL_CLASS_EXT,
390
    &sInterfaceObjectClassObjectOps
391
  },
392
  eInterface,
393
  true,
394
  prototypes::id::ExtendableEvent,
395
  PrototypeTraits<prototypes::id::ExtendableEvent>::Depth,
396
  &sEmptyNativePropertyHooks,
397
  "function ExtendableEvent() {\n    [native code]\n}",
398
  Event_Binding::GetConstructorObject
399
};
400
401
static const DOMIfaceAndProtoJSClass sPrototypeClass = {
402
  {
403
    "ExtendableEventPrototype",
404
    JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE + 1 /* slot for the JSObject holding the unforgeable properties */),
405
    JS_NULL_CLASS_OPS,
406
    JS_NULL_CLASS_SPEC,
407
    JS_NULL_CLASS_EXT,
408
    JS_NULL_OBJECT_OPS
409
  },
410
  eInterfacePrototype,
411
  false,
412
  prototypes::id::ExtendableEvent,
413
  PrototypeTraits<prototypes::id::ExtendableEvent>::Depth,
414
  &sEmptyNativePropertyHooks,
415
  "[object ExtendableEventPrototype]",
416
  Event_Binding::GetProtoObject
417
};
418
419
bool
420
ConstructorEnabled(JSContext* aCx, JS::Handle<JSObject*> aObj)
421
0
{
422
0
  MOZ_ASSERT(!NS_IsMainThread(), "Why did we even get called?");
423
0
424
0
  const char* name = js::GetObjectClass(aObj)->name;
425
0
  if (strcmp(name, "ServiceWorkerGlobalScope")) {
426
0
    return false;
427
0
  }
428
0
429
0
  return true;
430
0
}
431
432
static const js::ClassOps sClassOps = {
433
  _addProperty, /* addProperty */
434
  nullptr,               /* delProperty */
435
  nullptr,               /* enumerate */
436
  nullptr, /* newEnumerate */
437
  nullptr, /* resolve */
438
  nullptr, /* mayResolve */
439
  _finalize, /* finalize */
440
  nullptr, /* call */
441
  nullptr,               /* hasInstance */
442
  nullptr,               /* construct */
443
  nullptr, /* trace */
444
};
445
446
static const js::ClassExtension sClassExtension = {
447
  nullptr, /* weakmapKeyDelegateOp */
448
  _objectMoved /* objectMovedOp */
449
};
450
451
static const DOMJSClass sClass = {
452
  { "ExtendableEvent",
453
    JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1) | JSCLASS_SKIP_NURSERY_FINALIZE,
454
    &sClassOps,
455
    JS_NULL_CLASS_SPEC,
456
    &sClassExtension,
457
    JS_NULL_OBJECT_OPS
458
  },
459
  { prototypes::id::Event, prototypes::id::ExtendableEvent, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
460
  IsBaseOf<nsISupports, mozilla::dom::ExtendableEvent >::value,
461
  &sEmptyNativePropertyHooks,
462
  FindAssociatedGlobalForNative<mozilla::dom::ExtendableEvent>::Get,
463
  GetProtoObjectHandle,
464
  GetCCParticipant<mozilla::dom::ExtendableEvent>::Get()
465
};
466
static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
467
              "Must have the right minimal number of reserved slots.");
468
static_assert(1 >= 1,
469
              "Must have enough reserved slots.");
470
471
const JSClass*
472
GetJSClass()
473
0
{
474
0
  return sClass.ToJSClass();
475
0
}
476
477
bool
478
Wrap(JSContext* aCx, mozilla::dom::ExtendableEvent* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
479
0
{
480
0
  static_assert(!IsBaseOf<NonRefcountedDOMObject, mozilla::dom::ExtendableEvent>::value,
481
0
                "Shouldn't have wrappercached things that are not refcounted.");
482
0
  MOZ_ASSERT(static_cast<mozilla::dom::ExtendableEvent*>(aObject) ==
483
0
             reinterpret_cast<mozilla::dom::ExtendableEvent*>(aObject),
484
0
             "Multiple inheritance for mozilla::dom::ExtendableEvent is broken.");
485
0
  MOZ_ASSERT(static_cast<mozilla::dom::Event*>(aObject) ==
486
0
             reinterpret_cast<mozilla::dom::Event*>(aObject),
487
0
             "Multiple inheritance for mozilla::dom::Event is broken.");
488
0
  MOZ_ASSERT(ToSupportsIsCorrect(aObject));
489
0
  MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
490
0
  MOZ_ASSERT(!aCache->GetWrapper(),
491
0
             "You should probably not be using Wrap() directly; use "
492
0
             "GetOrCreateDOMReflector instead");
493
0
494
0
  MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
495
0
             "nsISupports must be on our primary inheritance chain");
496
0
497
0
  JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
498
0
  if (!global) {
499
0
    return false;
500
0
  }
501
0
  MOZ_ASSERT(JS_IsGlobalObject(global));
502
0
  MOZ_ASSERT(JS::ObjectIsNotGray(global));
503
0
504
0
  // That might have ended up wrapping us already, due to the wonders
505
0
  // of XBL.  Check for that, and bail out as needed.
506
0
  aReflector.set(aCache->GetWrapper());
507
0
  if (aReflector) {
508
#ifdef DEBUG
509
    AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
510
#endif // DEBUG
511
    return true;
512
0
  }
513
0
514
0
  JSAutoRealm ar(aCx, global);
515
0
  JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
516
0
  if (!canonicalProto) {
517
0
    return false;
518
0
  }
519
0
  JS::Rooted<JSObject*> proto(aCx);
520
0
  if (aGivenProto) {
521
0
    proto = aGivenProto;
522
0
    // Unfortunately, while aGivenProto was in the compartment of aCx
523
0
    // coming in, we changed compartments to that of "parent" so may need
524
0
    // to wrap the proto here.
525
0
    if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
526
0
      if (!JS_WrapObject(aCx, &proto)) {
527
0
        return false;
528
0
      }
529
0
    }
530
0
  } else {
531
0
    proto = canonicalProto;
532
0
  }
533
0
534
0
  BindingJSObjectCreator<mozilla::dom::ExtendableEvent> creator(aCx);
535
0
  creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
536
0
  if (!aReflector) {
537
0
    return false;
538
0
  }
539
0
540
0
  aCache->SetWrapper(aReflector);
541
0
542
0
  // Important: do unforgeable property setup after we have handed
543
0
  // over ownership of the C++ object to obj as needed, so that if
544
0
  // we fail and it ends up GCed it won't have problems in the
545
0
  // finalizer trying to drop its ownership of the C++ object.
546
0
  JS::Rooted<JSObject*> unforgeableHolder(aCx,
547
0
    &js::GetReservedSlot(canonicalProto, DOM_INTERFACE_PROTO_SLOTS_BASE).toObject());
548
0
  if (!JS_InitializePropertiesFromCompatibleNativeObject(aCx, aReflector, unforgeableHolder)) {
549
0
    aCache->ReleaseWrapper(aObject);
550
0
    aCache->ClearWrapper();
551
0
    return false;
552
0
  }
553
0
  creator.InitializationSucceeded();
554
0
555
0
  MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
556
0
             aCache->GetWrapperPreserveColor() == aReflector);
557
0
  // If proto != canonicalProto, we have to preserve our wrapper;
558
0
  // otherwise we won't be able to properly recreate it later, since
559
0
  // we won't know what proto to use.  Note that we don't check
560
0
  // aGivenProto here, since it's entirely possible (and even
561
0
  // somewhat common) to have a non-null aGivenProto which is the
562
0
  // same as canonicalProto.
563
0
  if (proto != canonicalProto) {
564
0
    PreserveWrapper(aObject);
565
0
  }
566
0
567
0
  return true;
568
0
}
569
570
void
571
CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
572
0
{
573
0
  JS::Handle<JSObject*> parentProto(Event_Binding::GetProtoObjectHandle(aCx));
574
0
  if (!parentProto) {
575
0
    return;
576
0
  }
577
0
578
0
  JS::Handle<JSObject*> constructorProto(Event_Binding::GetConstructorObjectHandle(aCx));
579
0
  if (!constructorProto) {
580
0
    return;
581
0
  }
582
0
583
0
  JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::ExtendableEvent);
584
0
  JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::ExtendableEvent);
585
0
  dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
586
0
                              &sPrototypeClass.mBase, protoCache,
587
0
                              nullptr,
588
0
                              constructorProto, &sInterfaceObjectClass.mBase, 1, nullptr,
589
0
                              interfaceCache,
590
0
                              sNativeProperties.Upcast(),
591
0
                              nullptr,
592
0
                              "ExtendableEvent", aDefineOnGlobal,
593
0
                              nullptr,
594
0
                              false);
595
0
596
0
  JS::Rooted<JSObject*> unforgeableHolder(aCx);
597
0
  {
598
0
    JS::Rooted<JSObject*> holderProto(aCx, *protoCache);
599
0
    unforgeableHolder = JS_NewObjectWithoutMetadata(aCx, sClass.ToJSClass(), holderProto);
600
0
    if (!unforgeableHolder) {
601
0
      *protoCache = nullptr;
602
0
      if (interfaceCache) {
603
0
        *interfaceCache = nullptr;
604
0
      }
605
0
      return;
606
0
    }
607
0
  }
608
0
609
0
  if (!DefineUnforgeableAttributes(aCx, unforgeableHolder, sUnforgeableAttributes)) {
610
0
    *protoCache = nullptr;
611
0
    if (interfaceCache) {
612
0
      *interfaceCache = nullptr;
613
0
    }
614
0
    return;
615
0
  }
616
0
617
0
  if (*protoCache) {
618
0
    js::SetReservedSlot(*protoCache, DOM_INTERFACE_PROTO_SLOTS_BASE,
619
0
                        JS::ObjectValue(*unforgeableHolder));
620
0
  }
621
0
}
622
623
JSObject*
624
GetProtoObject(JSContext* aCx)
625
0
{
626
0
  return GetProtoObjectHandle(aCx);
627
0
}
628
629
JSObject*
630
GetConstructorObject(JSContext* aCx)
631
0
{
632
0
  return GetConstructorObjectHandle(aCx);
633
0
}
634
635
} // namespace ExtendableEvent_Binding
636
637
638
639
} // namespace dom
640
} // namespace mozilla