Coverage Report

Created: 2018-09-25 14:53

/work/obj-fuzz/dom/bindings/WebGLContextEventBinding.cpp
Line
Count
Source (jump to first uncovered line)
1
/* THIS FILE IS AUTOGENERATED FROM WebGLContextEvent.webidl BY Codegen.py - DO NOT EDIT */
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3
#include "AtomList.h"
4
#include "EventBinding.h"
5
#include "WebGLContextEventBinding.h"
6
#include "WrapperFactory.h"
7
#include "mozilla/OwningNonNull.h"
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#include "mozilla/dom/BindingUtils.h"
9
#include "mozilla/dom/DOMJSClass.h"
10
#include "mozilla/dom/NonRefcountedDOMObject.h"
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#include "mozilla/dom/OffscreenCanvas.h"
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#include "mozilla/dom/PrimitiveConversions.h"
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#include "mozilla/dom/ScriptSettings.h"
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#include "mozilla/dom/SimpleGlobalObject.h"
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#include "mozilla/dom/WebGLContextEvent.h"
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#include "mozilla/dom/XrayExpandoClass.h"
17
18
namespace mozilla {
19
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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WebGLContextEventInit::WebGLContextEventInit()
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
}
32
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34
35
bool
36
WebGLContextEventInit::InitIds(JSContext* cx, WebGLContextEventInitAtoms* atomsCache)
37
0
{
38
0
  MOZ_ASSERT(!*reinterpret_cast<jsid**>(atomsCache));
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0
40
0
  // Initialize these in reverse order so that any failure leaves the first one
41
0
  // uninitialized.
42
0
  if (!atomsCache->statusMessage_id.init(cx, "statusMessage")) {
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0
    return false;
44
0
  }
45
0
  return true;
46
0
}
47
48
bool
49
WebGLContextEventInit::Init(JSContext* cx, JS::Handle<JS::Value> val, const char* sourceDescription, bool passedToJSImpl)
50
0
{
51
0
  // Passing a null JSContext is OK only if we're initing from null,
52
0
  // Since in that case we will not have to do any property gets
53
0
  // Also evaluate isNullOrUndefined in order to avoid false-positive
54
0
  // checkers by static analysis tools
55
0
  MOZ_ASSERT_IF(!cx, val.isNull() && val.isNullOrUndefined());
56
0
  WebGLContextEventInitAtoms* atomsCache = nullptr;
57
0
  if (cx) {
58
0
    atomsCache = GetAtomCache<WebGLContextEventInitAtoms>(cx);
59
0
    if (!*reinterpret_cast<jsid**>(atomsCache) && !InitIds(cx, atomsCache)) {
60
0
      return false;
61
0
    }
62
0
  }
63
0
64
0
  // Per spec, we init the parent's members first
65
0
  if (!EventInit::Init(cx, val)) {
66
0
    return false;
67
0
  }
68
0
69
0
  bool isNull = val.isNullOrUndefined();
70
0
  // We only need these if !isNull, in which case we have |cx|.
71
0
  Maybe<JS::Rooted<JSObject *> > object;
72
0
  Maybe<JS::Rooted<JS::Value> > temp;
73
0
  if (!isNull) {
74
0
    MOZ_ASSERT(cx);
75
0
    object.emplace(cx, &val.toObject());
76
0
    temp.emplace(cx);
77
0
  }
78
0
  if (!isNull) {
79
0
    if (!JS_GetPropertyById(cx, *object, atomsCache->statusMessage_id, temp.ptr())) {
80
0
      return false;
81
0
    }
82
0
  }
83
0
  if (!isNull && !temp->isUndefined()) {
84
0
    if (!ConvertJSValueToString(cx, temp.ref(), eStringify, eStringify, mStatusMessage)) {
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0
      return false;
86
0
    }
87
0
  } else {
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0
    static const char16_t data[] = { 0 };
89
0
    mStatusMessage.Rebind(data, ArrayLength(data) - 1);
90
0
  }
91
0
  mIsAnyMemberPresent = true;
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0
  return true;
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0
}
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bool
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WebGLContextEventInit::Init(const nsAString& aJSON)
97
0
{
98
0
  AutoJSAPI jsapi;
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0
  JSObject* cleanGlobal = SimpleGlobalObject::Create(SimpleGlobalObject::GlobalType::BindingDetail);
100
0
  if (!cleanGlobal) {
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0
    return false;
102
0
  }
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0
  if (!jsapi.Init(cleanGlobal)) {
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0
    return false;
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0
  }
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0
  JSContext* cx = jsapi.cx();
107
0
  JS::Rooted<JS::Value> json(cx);
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0
  bool ok = ParseJSON(cx, aJSON, &json);
109
0
  NS_ENSURE_TRUE(ok, false);
110
0
  return Init(cx, json);
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0
}
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bool
114
WebGLContextEventInit::ToObjectInternal(JSContext* cx, JS::MutableHandle<JS::Value> rval) const
115
0
{
116
0
  WebGLContextEventInitAtoms* atomsCache = GetAtomCache<WebGLContextEventInitAtoms>(cx);
117
0
  if (!*reinterpret_cast<jsid**>(atomsCache) && !InitIds(cx, atomsCache)) {
118
0
    return false;
119
0
  }
120
0
121
0
  // Per spec, we define the parent's members first
122
0
  if (!EventInit::ToObjectInternal(cx, rval)) {
123
0
    return false;
124
0
  }
125
0
  JS::Rooted<JSObject*> obj(cx, &rval.toObject());
126
0
127
0
  do {
128
0
    // block for our 'break' successCode and scope for 'temp' and 'currentValue'
129
0
    JS::Rooted<JS::Value> temp(cx);
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0
    nsString const & currentValue = mStatusMessage;
131
0
    if (!xpc::NonVoidStringToJsval(cx, currentValue, &temp)) {
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0
      return false;
133
0
    }
134
0
    if (!JS_DefinePropertyById(cx, obj, atomsCache->statusMessage_id, temp, JSPROP_ENUMERATE)) {
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0
      return false;
136
0
    }
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0
    break;
138
0
  } while(false);
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0
140
0
  return true;
141
0
}
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bool
144
WebGLContextEventInit::ToJSON(nsAString& aJSON) const
145
0
{
146
0
  AutoJSAPI jsapi;
147
0
  jsapi.Init();
148
0
  JSContext *cx = jsapi.cx();
149
0
  // It's safe to use UnprivilegedJunkScopeOrWorkerGlobal here
150
0
  // because we'll only be creating objects, in ways that have no
151
0
  // side-effects, followed by a call to JS::ToJSONMaybeSafely,
152
0
  // which likewise guarantees no side-effects for the sorts of
153
0
  // things we will pass it.
154
0
  JSAutoRealm ar(cx, UnprivilegedJunkScopeOrWorkerGlobal());
155
0
  JS::Rooted<JS::Value> val(cx);
156
0
  if (!ToObjectInternal(cx, &val)) {
157
0
    return false;
158
0
  }
159
0
  JS::Rooted<JSObject*> obj(cx, &val.toObject());
160
0
  return StringifyToJSON(cx, obj, aJSON);
161
0
}
162
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void
164
WebGLContextEventInit::TraceDictionary(JSTracer* trc)
165
0
{
166
0
  EventInit::TraceDictionary(trc);
167
0
}
168
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WebGLContextEventInit&
170
WebGLContextEventInit::operator=(const WebGLContextEventInit& aOther)
171
0
{
172
0
  EventInit::operator=(aOther);
173
0
  mStatusMessage = aOther.mStatusMessage;
174
0
  return *this;
175
0
}
176
177
namespace binding_detail {
178
} // namespace binding_detail
179
180
181
namespace WebGLContextEvent_Binding {
182
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static_assert(IsRefcounted<NativeType>::value == IsRefcounted<Event_Binding::NativeType>::value,
184
              "Can't inherit from an interface with a different ownership model.");
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MOZ_CAN_RUN_SCRIPT static bool
187
get_statusMessage(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::WebGLContextEvent* self, JSJitGetterCallArgs args)
188
0
{
189
0
  AUTO_PROFILER_LABEL_FAST("get WebGLContextEvent.statusMessage", DOM, cx);
190
0
191
0
  DOMString result;
192
0
  self->GetStatusMessage(result);
193
0
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
194
0
  if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
195
0
    return false;
196
0
  }
197
0
  return true;
198
0
}
199
200
static const JSJitInfo statusMessage_getterinfo = {
201
  { (JSJitGetterOp)get_statusMessage },
202
  { prototypes::id::WebGLContextEvent },
203
  { PrototypeTraits<prototypes::id::WebGLContextEvent>::Depth },
204
  JSJitInfo::Getter,
205
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
206
  JSVAL_TYPE_STRING,  /* returnType.  Not relevant for setters. */
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  false,  /* isInfallible. False in setters. */
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  false,  /* isMovable.  Not relevant for setters. */
209
  false, /* isEliminatable.  Not relevant for setters. */
210
  false, /* isAlwaysInSlot.  Only relevant for getters. */
211
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
212
  false,  /* isTypedMethod.  Only relevant for methods. */
213
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
214
};
215
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
216
static_assert(0 < 1, "There is no slot for us");
217
218
MOZ_CAN_RUN_SCRIPT static bool
219
get_isTrusted(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::WebGLContextEvent* self, JSJitGetterCallArgs args)
220
0
{
221
0
  AUTO_PROFILER_LABEL_FAST("get WebGLContextEvent.isTrusted", DOM, cx);
222
0
223
0
  bool result(self->IsTrusted());
224
0
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
225
0
  args.rval().setBoolean(result);
226
0
  return true;
227
0
}
228
229
static const JSJitInfo isTrusted_getterinfo = {
230
  { (JSJitGetterOp)get_isTrusted },
231
  { prototypes::id::WebGLContextEvent },
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  { PrototypeTraits<prototypes::id::WebGLContextEvent>::Depth },
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  JSJitInfo::Getter,
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  JSJitInfo::AliasDOMSets, /* aliasSet.  Not relevant for setters. */
235
  JSVAL_TYPE_BOOLEAN,  /* returnType.  Not relevant for setters. */
236
  true,  /* isInfallible. False in setters. */
237
  true,  /* isMovable.  Not relevant for setters. */
238
  true, /* isEliminatable.  Not relevant for setters. */
239
  false, /* isAlwaysInSlot.  Only relevant for getters. */
240
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
241
  false,  /* isTypedMethod.  Only relevant for methods. */
242
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
243
};
244
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
245
static_assert(0 < 1, "There is no slot for us");
246
247
static bool
248
_addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
249
0
{
250
0
  mozilla::dom::WebGLContextEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::WebGLContextEvent>(obj);
251
0
  // We don't want to preserve if we don't have a wrapper, and we
252
0
  // obviously can't preserve if we're not initialized.
253
0
  if (self && self->GetWrapperPreserveColor()) {
254
0
    PreserveWrapper(self);
255
0
  }
256
0
  return true;
257
0
}
258
259
static void
260
_finalize(js::FreeOp* fop, JSObject* obj)
261
0
{
262
0
  mozilla::dom::WebGLContextEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::WebGLContextEvent>(obj);
263
0
  if (self) {
264
0
    ClearWrapper(self, self, obj);
265
0
    AddForDeferredFinalization<mozilla::dom::WebGLContextEvent>(self);
266
0
  }
267
0
}
268
269
static size_t
270
_objectMoved(JSObject* obj, JSObject* old)
271
0
{
272
0
  mozilla::dom::WebGLContextEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::WebGLContextEvent>(obj);
273
0
  if (self) {
274
0
    UpdateWrapper(self, self, obj, old);
275
0
  }
276
0
277
0
  return 0;
278
0
}
279
280
// We deliberately use brace-elision to make Visual Studio produce better initalization code.
281
#if defined(__clang__)
282
#pragma clang diagnostic push
283
#pragma clang diagnostic ignored "-Wmissing-braces"
284
#endif
285
static const JSPropertySpec sAttributes_specs[] = {
286
  { "statusMessage", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &statusMessage_getterinfo, nullptr, nullptr },
287
  { nullptr, 0, nullptr, nullptr, nullptr, nullptr }
288
};
289
#if defined(__clang__)
290
#pragma clang diagnostic pop
291
#endif
292
293
294
static const Prefable<const JSPropertySpec> sAttributes[] = {
295
  { nullptr, &sAttributes_specs[0] },
296
  { nullptr, nullptr }
297
};
298
299
static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
300
    "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
301
static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
302
    "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
303
304
// We deliberately use brace-elision to make Visual Studio produce better initalization code.
305
#if defined(__clang__)
306
#pragma clang diagnostic push
307
#pragma clang diagnostic ignored "-Wmissing-braces"
308
#endif
309
static const JSPropertySpec sUnforgeableAttributes_specs[] = {
310
  { "isTrusted", JSPROP_ENUMERATE | JSPROP_PERMANENT, GenericGetter<NormalThisPolicy, ThrowExceptions>, &isTrusted_getterinfo, nullptr, nullptr },
311
  { nullptr, 0, nullptr, nullptr, nullptr, nullptr }
312
};
313
#if defined(__clang__)
314
#pragma clang diagnostic pop
315
#endif
316
317
318
static const Prefable<const JSPropertySpec> sUnforgeableAttributes[] = {
319
  { nullptr, &sUnforgeableAttributes_specs[0] },
320
  { nullptr, nullptr }
321
};
322
323
static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
324
    "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
325
static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
326
    "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
327
328
329
static uint16_t sNativeProperties_sortedPropertyIndices[2];
330
static PropertyInfo sNativeProperties_propertyInfos[2];
331
332
static const NativePropertiesN<2> sNativeProperties = {
333
  false, 0,
334
  false, 0,
335
  false, 0,
336
  true,  0 /* sAttributes */,
337
  false, 0,
338
  true,  1 /* sUnforgeableAttributes */,
339
  false, 0,
340
  -1,
341
  2,
342
  sNativeProperties_sortedPropertyIndices,
343
  {
344
    { sAttributes, &sNativeProperties_propertyInfos[0] },
345
    { sUnforgeableAttributes, &sNativeProperties_propertyInfos[1] }
346
  }
347
};
348
static_assert(2 < 1ull << CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount),
349
    "We have a property info count that is oversized");
350
351
static bool
352
_constructor(JSContext* cx, unsigned argc, JS::Value* vp)
353
0
{
354
0
  AUTO_PROFILER_LABEL_FAST("WebGLContextEvent constructor", DOM, cx);
355
0
356
0
  JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
357
0
  JS::Rooted<JSObject*> obj(cx, &args.callee());
358
0
  if (!args.isConstructing()) {
359
0
    // XXXbz wish I could get the name from the callee instead of
360
0
    // Adding more relocations
361
0
    return ThrowConstructorWithoutNew(cx, "WebGLContextEvent");
362
0
  }
363
0
364
0
  JS::Rooted<JSObject*> desiredProto(cx);
365
0
  if (!GetDesiredProto(cx, args, &desiredProto)) {
366
0
    return false;
367
0
  }
368
0
369
0
  if (MOZ_UNLIKELY(args.length() < 1)) {
370
0
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "WebGLContextEvent");
371
0
  }
372
0
  GlobalObject global(cx, obj);
373
0
  if (global.Failed()) {
374
0
    return false;
375
0
  }
376
0
377
0
  bool objIsXray = xpc::WrapperFactory::IsXrayWrapper(obj);
378
0
  binding_detail::FakeString arg0;
379
0
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
380
0
    return false;
381
0
  }
382
0
  binding_detail::FastWebGLContextEventInit arg1;
383
0
  if (!arg1.Init(cx, (args.hasDefined(1)) ? args[1] : JS::NullHandleValue,  "Argument 2 of WebGLContextEvent.constructor", false)) {
384
0
    return false;
385
0
  }
386
0
  Maybe<JSAutoRealm> ar;
387
0
  if (objIsXray) {
388
0
    obj = js::CheckedUnwrap(obj);
389
0
    if (!obj) {
390
0
      return false;
391
0
    }
392
0
    ar.emplace(cx, obj);
393
0
    if (!JS_WrapObject(cx, &desiredProto)) {
394
0
      return false;
395
0
    }
396
0
  }
397
0
  FastErrorResult rv;
398
0
  auto result(StrongOrRawPtr<mozilla::dom::WebGLContextEvent>(mozilla::dom::WebGLContextEvent::Constructor(global, NonNullHelper(Constify(arg0)), Constify(arg1), rv)));
399
0
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
400
0
    return false;
401
0
  }
402
0
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
403
0
  static_assert(!IsPointer<decltype(result)>::value,
404
0
                "NewObject implies that we need to keep the object alive with a strong reference.");
405
0
  if (!GetOrCreateDOMReflector(cx, result, args.rval(), desiredProto)) {
406
0
    MOZ_ASSERT(JS_IsExceptionPending(cx));
407
0
    return false;
408
0
  }
409
0
  return true;
410
0
}
411
412
static const js::ClassOps sInterfaceObjectClassOps = {
413
    nullptr,               /* addProperty */
414
    nullptr,               /* delProperty */
415
    nullptr,               /* enumerate */
416
    nullptr,               /* newEnumerate */
417
    nullptr,               /* resolve */
418
    nullptr,               /* mayResolve */
419
    nullptr,               /* finalize */
420
    _constructor, /* call */
421
    nullptr,               /* hasInstance */
422
    _constructor, /* construct */
423
    nullptr,               /* trace */
424
};
425
426
static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
427
  {
428
    "Function",
429
    JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
430
    &sInterfaceObjectClassOps,
431
    JS_NULL_CLASS_SPEC,
432
    JS_NULL_CLASS_EXT,
433
    &sInterfaceObjectClassObjectOps
434
  },
435
  eInterface,
436
  true,
437
  prototypes::id::WebGLContextEvent,
438
  PrototypeTraits<prototypes::id::WebGLContextEvent>::Depth,
439
  sNativePropertyHooks,
440
  "function WebGLContextEvent() {\n    [native code]\n}",
441
  Event_Binding::GetConstructorObject
442
};
443
444
static const DOMIfaceAndProtoJSClass sPrototypeClass = {
445
  {
446
    "WebGLContextEventPrototype",
447
    JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE + 1 /* slot for the JSObject holding the unforgeable properties */),
448
    JS_NULL_CLASS_OPS,
449
    JS_NULL_CLASS_SPEC,
450
    JS_NULL_CLASS_EXT,
451
    JS_NULL_OBJECT_OPS
452
  },
453
  eInterfacePrototype,
454
  false,
455
  prototypes::id::WebGLContextEvent,
456
  PrototypeTraits<prototypes::id::WebGLContextEvent>::Depth,
457
  sNativePropertyHooks,
458
  "[object WebGLContextEventPrototype]",
459
  Event_Binding::GetProtoObject
460
};
461
462
bool
463
ConstructorEnabled(JSContext* aCx, JS::Handle<JSObject*> aObj)
464
0
{
465
0
  return mozilla::dom::OffscreenCanvas::PrefEnabledOnWorkerThread(aCx, aObj);
466
0
}
467
468
static const js::ClassOps sClassOps = {
469
  _addProperty, /* addProperty */
470
  nullptr,               /* delProperty */
471
  nullptr,               /* enumerate */
472
  nullptr, /* newEnumerate */
473
  nullptr, /* resolve */
474
  nullptr, /* mayResolve */
475
  _finalize, /* finalize */
476
  nullptr, /* call */
477
  nullptr,               /* hasInstance */
478
  nullptr,               /* construct */
479
  nullptr, /* trace */
480
};
481
482
static const js::ClassExtension sClassExtension = {
483
  nullptr, /* weakmapKeyDelegateOp */
484
  _objectMoved /* objectMovedOp */
485
};
486
487
static const DOMJSClass sClass = {
488
  { "WebGLContextEvent",
489
    JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1) | JSCLASS_SKIP_NURSERY_FINALIZE,
490
    &sClassOps,
491
    JS_NULL_CLASS_SPEC,
492
    &sClassExtension,
493
    JS_NULL_OBJECT_OPS
494
  },
495
  { prototypes::id::Event, prototypes::id::WebGLContextEvent, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
496
  IsBaseOf<nsISupports, mozilla::dom::WebGLContextEvent >::value,
497
  sNativePropertyHooks,
498
  FindAssociatedGlobalForNative<mozilla::dom::WebGLContextEvent>::Get,
499
  GetProtoObjectHandle,
500
  GetCCParticipant<mozilla::dom::WebGLContextEvent>::Get()
501
};
502
static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
503
              "Must have the right minimal number of reserved slots.");
504
static_assert(1 >= 1,
505
              "Must have enough reserved slots.");
506
507
const JSClass*
508
GetJSClass()
509
0
{
510
0
  return sClass.ToJSClass();
511
0
}
512
513
bool
514
Wrap(JSContext* aCx, mozilla::dom::WebGLContextEvent* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
515
0
{
516
0
  static_assert(!IsBaseOf<NonRefcountedDOMObject, mozilla::dom::WebGLContextEvent>::value,
517
0
                "Shouldn't have wrappercached things that are not refcounted.");
518
0
  MOZ_ASSERT(static_cast<mozilla::dom::WebGLContextEvent*>(aObject) ==
519
0
             reinterpret_cast<mozilla::dom::WebGLContextEvent*>(aObject),
520
0
             "Multiple inheritance for mozilla::dom::WebGLContextEvent is broken.");
521
0
  MOZ_ASSERT(static_cast<mozilla::dom::Event*>(aObject) ==
522
0
             reinterpret_cast<mozilla::dom::Event*>(aObject),
523
0
             "Multiple inheritance for mozilla::dom::Event is broken.");
524
0
  MOZ_ASSERT(ToSupportsIsCorrect(aObject));
525
0
  MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
526
0
  MOZ_ASSERT(!aCache->GetWrapper(),
527
0
             "You should probably not be using Wrap() directly; use "
528
0
             "GetOrCreateDOMReflector instead");
529
0
530
0
  MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
531
0
             "nsISupports must be on our primary inheritance chain");
532
0
533
0
  JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
534
0
  if (!global) {
535
0
    return false;
536
0
  }
537
0
  MOZ_ASSERT(JS_IsGlobalObject(global));
538
0
  MOZ_ASSERT(JS::ObjectIsNotGray(global));
539
0
540
0
  // That might have ended up wrapping us already, due to the wonders
541
0
  // of XBL.  Check for that, and bail out as needed.
542
0
  aReflector.set(aCache->GetWrapper());
543
0
  if (aReflector) {
544
#ifdef DEBUG
545
    AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
546
#endif // DEBUG
547
    return true;
548
0
  }
549
0
550
0
  JSAutoRealm ar(aCx, global);
551
0
  JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
552
0
  if (!canonicalProto) {
553
0
    return false;
554
0
  }
555
0
  JS::Rooted<JSObject*> proto(aCx);
556
0
  if (aGivenProto) {
557
0
    proto = aGivenProto;
558
0
    // Unfortunately, while aGivenProto was in the compartment of aCx
559
0
    // coming in, we changed compartments to that of "parent" so may need
560
0
    // to wrap the proto here.
561
0
    if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
562
0
      if (!JS_WrapObject(aCx, &proto)) {
563
0
        return false;
564
0
      }
565
0
    }
566
0
  } else {
567
0
    proto = canonicalProto;
568
0
  }
569
0
570
0
  BindingJSObjectCreator<mozilla::dom::WebGLContextEvent> creator(aCx);
571
0
  creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
572
0
  if (!aReflector) {
573
0
    return false;
574
0
  }
575
0
576
0
  aCache->SetWrapper(aReflector);
577
0
578
0
  // Important: do unforgeable property setup after we have handed
579
0
  // over ownership of the C++ object to obj as needed, so that if
580
0
  // we fail and it ends up GCed it won't have problems in the
581
0
  // finalizer trying to drop its ownership of the C++ object.
582
0
  JS::Rooted<JSObject*> unforgeableHolder(aCx,
583
0
    &js::GetReservedSlot(canonicalProto, DOM_INTERFACE_PROTO_SLOTS_BASE).toObject());
584
0
  if (!JS_InitializePropertiesFromCompatibleNativeObject(aCx, aReflector, unforgeableHolder)) {
585
0
    aCache->ReleaseWrapper(aObject);
586
0
    aCache->ClearWrapper();
587
0
    return false;
588
0
  }
589
0
  creator.InitializationSucceeded();
590
0
591
0
  MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
592
0
             aCache->GetWrapperPreserveColor() == aReflector);
593
0
  // If proto != canonicalProto, we have to preserve our wrapper;
594
0
  // otherwise we won't be able to properly recreate it later, since
595
0
  // we won't know what proto to use.  Note that we don't check
596
0
  // aGivenProto here, since it's entirely possible (and even
597
0
  // somewhat common) to have a non-null aGivenProto which is the
598
0
  // same as canonicalProto.
599
0
  if (proto != canonicalProto) {
600
0
    PreserveWrapper(aObject);
601
0
  }
602
0
603
0
  return true;
604
0
}
605
606
const NativePropertyHooks sNativePropertyHooks[] = { {
607
  nullptr,
608
  nullptr,
609
  nullptr,
610
  { sNativeProperties.Upcast(), nullptr },
611
  prototypes::id::WebGLContextEvent,
612
  constructors::id::WebGLContextEvent,
613
  Event_Binding::sNativePropertyHooks,
614
  &DefaultXrayExpandoObjectClass
615
} };
616
617
void
618
CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
619
0
{
620
0
  JS::Handle<JSObject*> parentProto(Event_Binding::GetProtoObjectHandle(aCx));
621
0
  if (!parentProto) {
622
0
    return;
623
0
  }
624
0
625
0
  JS::Handle<JSObject*> constructorProto(Event_Binding::GetConstructorObjectHandle(aCx));
626
0
  if (!constructorProto) {
627
0
    return;
628
0
  }
629
0
630
0
  static bool sIdsInited = false;
631
0
  if (!sIdsInited && NS_IsMainThread()) {
632
0
    if (!InitIds(aCx, sNativeProperties.Upcast())) {
633
0
      return;
634
0
    }
635
0
    sIdsInited = true;
636
0
  }
637
0
638
0
  JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::WebGLContextEvent);
639
0
  JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::WebGLContextEvent);
640
0
  dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
641
0
                              &sPrototypeClass.mBase, protoCache,
642
0
                              nullptr,
643
0
                              constructorProto, &sInterfaceObjectClass.mBase, 1, nullptr,
644
0
                              interfaceCache,
645
0
                              sNativeProperties.Upcast(),
646
0
                              nullptr,
647
0
                              "WebGLContextEvent", aDefineOnGlobal,
648
0
                              nullptr,
649
0
                              false);
650
0
651
0
  JS::Rooted<JSObject*> unforgeableHolder(aCx);
652
0
  {
653
0
    JS::Rooted<JSObject*> holderProto(aCx, *protoCache);
654
0
    unforgeableHolder = JS_NewObjectWithoutMetadata(aCx, sClass.ToJSClass(), holderProto);
655
0
    if (!unforgeableHolder) {
656
0
      *protoCache = nullptr;
657
0
      if (interfaceCache) {
658
0
        *interfaceCache = nullptr;
659
0
      }
660
0
      return;
661
0
    }
662
0
  }
663
0
664
0
  if (!DefineUnforgeableAttributes(aCx, unforgeableHolder, sUnforgeableAttributes)) {
665
0
    *protoCache = nullptr;
666
0
    if (interfaceCache) {
667
0
      *interfaceCache = nullptr;
668
0
    }
669
0
    return;
670
0
  }
671
0
672
0
  if (*protoCache) {
673
0
    js::SetReservedSlot(*protoCache, DOM_INTERFACE_PROTO_SLOTS_BASE,
674
0
                        JS::ObjectValue(*unforgeableHolder));
675
0
  }
676
0
}
677
678
JSObject*
679
GetConstructorObject(JSContext* aCx)
680
0
{
681
0
  return GetConstructorObjectHandle(aCx);
682
0
}
683
684
} // namespace WebGLContextEvent_Binding
685
686
687
688
} // namespace dom
689
} // namespace mozilla