/work/obj-fuzz/dom/bindings/EventTargetBinding.cpp

Source (jump to first uncovered line)
/* THIS FILE IS AUTOGENERATED FROM EventTarget.webidl BY Codegen.py - DO NOT EDIT */

#include "AtomList.h"
#include "EventHandlerBinding.h"
#include "EventListenerBinding.h"
#include "EventTargetBinding.h"
#include "WrapperFactory.h"
#include "mozilla/OwningNonNull.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/DOMJSClass.h"
#include "mozilla/dom/Event.h"
#include "mozilla/dom/EventTarget.h"
#include "mozilla/dom/NonRefcountedDOMObject.h"
#include "mozilla/dom/Nullable.h"
#include "mozilla/dom/PrimitiveConversions.h"
#include "mozilla/dom/ScriptSettings.h"
#include "mozilla/dom/SimpleGlobalObject.h"
#include "mozilla/dom/UnionConversions.h"
#include "mozilla/dom/XrayExpandoClass.h"
#include "nsContentUtils.h"
#include "nsPIDOMWindow.h"
#include "xpcprivate.h"

namespace mozilla {
namespace dom {

namespace binding_detail {}; // Just to make sure it's known as a namespace
using namespace mozilla::dom::binding_detail;



EventListenerOptions::EventListenerOptions()
{
  // Safe to pass a null context if we pass a null value
  Init(nullptr, JS::NullHandleValue);
}



bool
EventListenerOptions::InitIds(JSContext* cx, EventListenerOptionsAtoms* atomsCache)
{
  MOZ_ASSERT(!*reinterpret_cast<jsid**>(atomsCache));

  // Initialize these in reverse order so that any failure leaves the first one
  // uninitialized.
  if (!atomsCache->mozSystemGroup_id.init(cx, "mozSystemGroup") ||
      !atomsCache->capture_id.init(cx, "capture")) {
    return false;
  }
  return true;
}

bool
EventListenerOptions::Init(JSContext* cx, JS::Handle<JS::Value> val, const char* sourceDescription, bool passedToJSImpl)
{
  // Passing a null JSContext is OK only if we're initing from null,
  // Since in that case we will not have to do any property gets
  // Also evaluate isNullOrUndefined in order to avoid false-positive
  // checkers by static analysis tools
  MOZ_ASSERT_IF(!cx, val.isNull() && val.isNullOrUndefined());
  EventListenerOptionsAtoms* atomsCache = nullptr;
  if (cx) {
    atomsCache = GetAtomCache<EventListenerOptionsAtoms>(cx);
    if (!*reinterpret_cast<jsid**>(atomsCache) && !InitIds(cx, atomsCache)) {
      return false;
    }
  }

  if (!IsConvertibleToDictionary(val)) {
    return ThrowErrorMessage(cx, MSG_NOT_DICTIONARY, sourceDescription);
  }

  bool isNull = val.isNullOrUndefined();
  // We only need these if !isNull, in which case we have |cx|.
  Maybe<JS::Rooted<JSObject *> > object;
  Maybe<JS::Rooted<JS::Value> > temp;
  if (!isNull) {
    MOZ_ASSERT(cx);
    object.emplace(cx, &val.toObject());
    temp.emplace(cx);
  }
  if (!isNull) {
    if (!JS_GetPropertyById(cx, *object, atomsCache->capture_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), &mCapture)) {
      return false;
    }
  } else {
    mCapture = false;
  }
  mIsAnyMemberPresent = true;

  if (!isNull) {
    if (ThreadSafeIsChromeOrXBLOrUAWidget(cx, *object)) {
      if (!JS_GetPropertyById(cx, *object, atomsCache->mozSystemGroup_id, temp.ptr())) {
        return false;
      }
    } else {
      temp->setUndefined();
    }
  }
  if (!isNull && !temp->isUndefined()) {
    if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), &mMozSystemGroup)) {
      return false;
    }
  } else {
    mMozSystemGroup = false;
  }
  mIsAnyMemberPresent = true;
  return true;
}

bool
EventListenerOptions::Init(const nsAString& aJSON)
{
  AutoJSAPI jsapi;
  JSObject* cleanGlobal = SimpleGlobalObject::Create(SimpleGlobalObject::GlobalType::BindingDetail);
  if (!cleanGlobal) {
    return false;
  }
  if (!jsapi.Init(cleanGlobal)) {
    return false;
  }
  JSContext* cx = jsapi.cx();
  JS::Rooted<JS::Value> json(cx);
  bool ok = ParseJSON(cx, aJSON, &json);
  NS_ENSURE_TRUE(ok, false);
  return Init(cx, json);
}

bool
EventListenerOptions::ToObjectInternal(JSContext* cx, JS::MutableHandle<JS::Value> rval) const
{
  EventListenerOptionsAtoms* atomsCache = GetAtomCache<EventListenerOptionsAtoms>(cx);
  if (!*reinterpret_cast<jsid**>(atomsCache) && !InitIds(cx, atomsCache)) {
    return false;
  }

  JS::Rooted<JSObject*> obj(cx, JS_NewPlainObject(cx));
  if (!obj) {
    return false;
  }
  rval.set(JS::ObjectValue(*obj));

  do {
    // block for our 'break' successCode and scope for 'temp' and 'currentValue'
    JS::Rooted<JS::Value> temp(cx);
    bool const & currentValue = mCapture;
    temp.setBoolean(currentValue);
    if (!JS_DefinePropertyById(cx, obj, atomsCache->capture_id, temp, JSPROP_ENUMERATE)) {
      return false;
    }
    break;
  } while(false);

  if (ThreadSafeIsChromeOrXBLOrUAWidget(cx, obj)) {
    do {
      // block for our 'break' successCode and scope for 'temp' and 'currentValue'
      JS::Rooted<JS::Value> temp(cx);
      bool const & currentValue = mMozSystemGroup;
      temp.setBoolean(currentValue);
      if (!JS_DefinePropertyById(cx, obj, atomsCache->mozSystemGroup_id, temp, JSPROP_ENUMERATE)) {
        return false;
      }
      break;
    } while(false);
  }

  return true;
}

bool
EventListenerOptions::ToJSON(nsAString& aJSON) const
{
  AutoJSAPI jsapi;
  jsapi.Init();
  JSContext *cx = jsapi.cx();
  // It's safe to use UnprivilegedJunkScopeOrWorkerGlobal here
  // because we'll only be creating objects, in ways that have no
  // side-effects, followed by a call to JS::ToJSONMaybeSafely,
  // which likewise guarantees no side-effects for the sorts of
  // things we will pass it.
  JSAutoRealm ar(cx, UnprivilegedJunkScopeOrWorkerGlobal());
  JS::Rooted<JS::Value> val(cx);
  if (!ToObjectInternal(cx, &val)) {
    return false;
  }
  JS::Rooted<JSObject*> obj(cx, &val.toObject());
  return StringifyToJSON(cx, obj, aJSON);
}

void
EventListenerOptions::TraceDictionary(JSTracer* trc)
{
}

EventListenerOptions&
EventListenerOptions::operator=(const EventListenerOptions& aOther)
{
  DictionaryBase::operator=(aOther);
  mCapture = aOther.mCapture;
  mMozSystemGroup = aOther.mMozSystemGroup;
  return *this;
}

namespace binding_detail {
} // namespace binding_detail



AddEventListenerOptions::AddEventListenerOptions()
  : EventListenerOptions(FastDictionaryInitializer())
{
  // Safe to pass a null context if we pass a null value
  Init(nullptr, JS::NullHandleValue);
}



bool
AddEventListenerOptions::InitIds(JSContext* cx, AddEventListenerOptionsAtoms* atomsCache)
{
  MOZ_ASSERT(!*reinterpret_cast<jsid**>(atomsCache));

  // Initialize these in reverse order so that any failure leaves the first one
  // uninitialized.
  if (!atomsCache->wantUntrusted_id.init(cx, "wantUntrusted") ||
      !atomsCache->passive_id.init(cx, "passive") ||
      !atomsCache->once_id.init(cx, "once")) {
    return false;
  }
  return true;
}

bool
AddEventListenerOptions::Init(JSContext* cx, JS::Handle<JS::Value> val, const char* sourceDescription, bool passedToJSImpl)
{
  // Passing a null JSContext is OK only if we're initing from null,
  // Since in that case we will not have to do any property gets
  // Also evaluate isNullOrUndefined in order to avoid false-positive
  // checkers by static analysis tools
  MOZ_ASSERT_IF(!cx, val.isNull() && val.isNullOrUndefined());
  AddEventListenerOptionsAtoms* atomsCache = nullptr;
  if (cx) {
    atomsCache = GetAtomCache<AddEventListenerOptionsAtoms>(cx);
    if (!*reinterpret_cast<jsid**>(atomsCache) && !InitIds(cx, atomsCache)) {
      return false;
    }
  }

  // Per spec, we init the parent's members first
  if (!EventListenerOptions::Init(cx, val)) {
    return false;
  }

  bool isNull = val.isNullOrUndefined();
  // We only need these if !isNull, in which case we have |cx|.
  Maybe<JS::Rooted<JSObject *> > object;
  Maybe<JS::Rooted<JS::Value> > temp;
  if (!isNull) {
    MOZ_ASSERT(cx);
    object.emplace(cx, &val.toObject());
    temp.emplace(cx);
  }
  if (!isNull) {
    if (!JS_GetPropertyById(cx, *object, atomsCache->once_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), &mOnce)) {
      return false;
    }
  } else {
    mOnce = false;
  }
  mIsAnyMemberPresent = true;

  if (!isNull) {
    if (!JS_GetPropertyById(cx, *object, atomsCache->passive_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    mPassive.Construct();
    if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), &(mPassive.Value()))) {
      return false;
    }
    mIsAnyMemberPresent = true;
  }

  if (!isNull) {
    if (nsContentUtils::ThreadsafeIsSystemCaller(cx)) {
      if (!JS_GetPropertyById(cx, *object, atomsCache->wantUntrusted_id, temp.ptr())) {
        return false;
      }
    } else {
      temp->setUndefined();
    }
  }
  if (!isNull && !temp->isUndefined()) {
    mWantUntrusted.Construct();
    if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), &(mWantUntrusted.Value()))) {
      return false;
    }
    mIsAnyMemberPresent = true;
  }
  return true;
}

bool
AddEventListenerOptions::Init(const nsAString& aJSON)
{
  AutoJSAPI jsapi;
  JSObject* cleanGlobal = SimpleGlobalObject::Create(SimpleGlobalObject::GlobalType::BindingDetail);
  if (!cleanGlobal) {
    return false;
  }
  if (!jsapi.Init(cleanGlobal)) {
    return false;
  }
  JSContext* cx = jsapi.cx();
  JS::Rooted<JS::Value> json(cx);
  bool ok = ParseJSON(cx, aJSON, &json);
  NS_ENSURE_TRUE(ok, false);
  return Init(cx, json);
}

bool
AddEventListenerOptions::ToObjectInternal(JSContext* cx, JS::MutableHandle<JS::Value> rval) const
{
  AddEventListenerOptionsAtoms* atomsCache = GetAtomCache<AddEventListenerOptionsAtoms>(cx);
  if (!*reinterpret_cast<jsid**>(atomsCache) && !InitIds(cx, atomsCache)) {
    return false;
  }

  // Per spec, we define the parent's members first
  if (!EventListenerOptions::ToObjectInternal(cx, rval)) {
    return false;
  }
  JS::Rooted<JSObject*> obj(cx, &rval.toObject());

  do {
    // block for our 'break' successCode and scope for 'temp' and 'currentValue'
    JS::Rooted<JS::Value> temp(cx);
    bool const & currentValue = mOnce;
    temp.setBoolean(currentValue);
    if (!JS_DefinePropertyById(cx, obj, atomsCache->once_id, temp, JSPROP_ENUMERATE)) {
      return false;
    }
    break;
  } while(false);

  if (mPassive.WasPassed()) {
    do {
      // block for our 'break' successCode and scope for 'temp' and 'currentValue'
      JS::Rooted<JS::Value> temp(cx);
      bool const & currentValue = mPassive.InternalValue();
      temp.setBoolean(currentValue);
      if (!JS_DefinePropertyById(cx, obj, atomsCache->passive_id, temp, JSPROP_ENUMERATE)) {
        return false;
      }
      break;
    } while(false);
  }

  if (nsContentUtils::ThreadsafeIsSystemCaller(cx)) {
    if (mWantUntrusted.WasPassed()) {
      do {
        // block for our 'break' successCode and scope for 'temp' and 'currentValue'
        JS::Rooted<JS::Value> temp(cx);
        bool const & currentValue = mWantUntrusted.InternalValue();
        temp.setBoolean(currentValue);
        if (!JS_DefinePropertyById(cx, obj, atomsCache->wantUntrusted_id, temp, JSPROP_ENUMERATE)) {
          return false;
        }
        break;
      } while(false);
    }
  }

  return true;
}

bool
AddEventListenerOptions::ToJSON(nsAString& aJSON) const
{
  AutoJSAPI jsapi;
  jsapi.Init();
  JSContext *cx = jsapi.cx();
  // It's safe to use UnprivilegedJunkScopeOrWorkerGlobal here
  // because we'll only be creating objects, in ways that have no
  // side-effects, followed by a call to JS::ToJSONMaybeSafely,
  // which likewise guarantees no side-effects for the sorts of
  // things we will pass it.
  JSAutoRealm ar(cx, UnprivilegedJunkScopeOrWorkerGlobal());
  JS::Rooted<JS::Value> val(cx);
  if (!ToObjectInternal(cx, &val)) {
    return false;
  }
  JS::Rooted<JSObject*> obj(cx, &val.toObject());
  return StringifyToJSON(cx, obj, aJSON);
}

void
AddEventListenerOptions::TraceDictionary(JSTracer* trc)
{
  EventListenerOptions::TraceDictionary(trc);
}

AddEventListenerOptions&
AddEventListenerOptions::operator=(const AddEventListenerOptions& aOther)
{
  EventListenerOptions::operator=(aOther);
  mOnce = aOther.mOnce;
  mPassive.Reset();
  if (aOther.mPassive.WasPassed()) {
    mPassive.Construct(aOther.mPassive.Value());
  }
  mWantUntrusted.Reset();
  if (aOther.mWantUntrusted.WasPassed()) {
    mWantUntrusted.Construct(aOther.mWantUntrusted.Value());
  }
  return *this;
}

namespace binding_detail {
} // namespace binding_detail


bool
EventListenerOptionsOrBoolean::ToJSVal(JSContext* cx, JS::Handle<JSObject*> scopeObj, JS::MutableHandle<JS::Value> rval) const
{
  switch (mType) {
    case eUninitialized: {
      return false;
      break;
    }
    case eEventListenerOptions: {
      if (!mValue.mEventListenerOptions.Value().ToObjectInternal(cx, rval)) {
        return false;
      }
      return true;
      break;
    }
    case eBoolean: {
      rval.setBoolean(mValue.mBoolean.Value());
      return true;
      break;
    }
    default: {
      return false;
      break;
    }
  }

  return false;
}


EventListenerOptions&
OwningEventListenerOptionsOrBoolean::RawSetAsEventListenerOptions()
{
  if (mType == eEventListenerOptions) {
    return mValue.mEventListenerOptions.Value();
  }
  MOZ_ASSERT(mType == eUninitialized);
  mType = eEventListenerOptions;
  return mValue.mEventListenerOptions.SetValue();
}

EventListenerOptions&
OwningEventListenerOptionsOrBoolean::SetAsEventListenerOptions()
{
  if (mType == eEventListenerOptions) {
    return mValue.mEventListenerOptions.Value();
  }
  Uninit();
  mType = eEventListenerOptions;
  return mValue.mEventListenerOptions.SetValue();
}

bool
OwningEventListenerOptionsOrBoolean::TrySetToEventListenerOptions(JSContext* cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
  tryNext = false;
  { // scope for memberSlot
    EventListenerOptions& memberSlot = RawSetAsEventListenerOptions();
    if (!IsConvertibleToDictionary(value)) {
      DestroyEventListenerOptions();
      tryNext = true;
      return true;
    }
    if (!memberSlot.Init(cx, value,  "Member of EventListenerOptionsOrBoolean", passedToJSImpl)) {
      return false;
    }
  }
  return true;
}

void
OwningEventListenerOptionsOrBoolean::DestroyEventListenerOptions()
{
  MOZ_ASSERT(IsEventListenerOptions(), "Wrong type!");
  mValue.mEventListenerOptions.Destroy();
  mType = eUninitialized;
}




bool&
OwningEventListenerOptionsOrBoolean::RawSetAsBoolean()
{
  if (mType == eBoolean) {
    return mValue.mBoolean.Value();
  }
  MOZ_ASSERT(mType == eUninitialized);
  mType = eBoolean;
  return mValue.mBoolean.SetValue();
}

bool&
OwningEventListenerOptionsOrBoolean::SetAsBoolean()
{
  if (mType == eBoolean) {
    return mValue.mBoolean.Value();
  }
  Uninit();
  mType = eBoolean;
  return mValue.mBoolean.SetValue();
}

bool
OwningEventListenerOptionsOrBoolean::TrySetToBoolean(JSContext* cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
  tryNext = false;
  { // scope for memberSlot
    bool& memberSlot = RawSetAsBoolean();
    if (!ValueToPrimitive<bool, eDefault>(cx, value, &memberSlot)) {
      return false;
    }
  }
  return true;
}

void
OwningEventListenerOptionsOrBoolean::DestroyBoolean()
{
  MOZ_ASSERT(IsBoolean(), "Wrong type!");
  mValue.mBoolean.Destroy();
  mType = eUninitialized;
}




void
OwningEventListenerOptionsOrBoolean::Uninit()
{
  switch (mType) {
    case eUninitialized: {
      break;
    }
    case eEventListenerOptions: {
      DestroyEventListenerOptions();
      break;
    }
    case eBoolean: {
      DestroyBoolean();
      break;
    }
  }
}

bool
OwningEventListenerOptionsOrBoolean::ToJSVal(JSContext* cx, JS::Handle<JSObject*> scopeObj, JS::MutableHandle<JS::Value> rval) const
{
  switch (mType) {
    case eUninitialized: {
      return false;
      break;
    }
    case eEventListenerOptions: {
      if (!mValue.mEventListenerOptions.Value().ToObjectInternal(cx, rval)) {
        return false;
      }
      return true;
      break;
    }
    case eBoolean: {
      rval.setBoolean(mValue.mBoolean.Value());
      return true;
      break;
    }
    default: {
      return false;
      break;
    }
  }

  return false;
}

void
OwningEventListenerOptionsOrBoolean::TraceUnion(JSTracer* trc)
{
}

OwningEventListenerOptionsOrBoolean&
OwningEventListenerOptionsOrBoolean::operator=(const OwningEventListenerOptionsOrBoolean& aOther)
{
  switch (aOther.mType) {
    case eUninitialized: {
      MOZ_ASSERT(mType == eUninitialized,
                 "We need to destroy ourselves?");
      break;
    }
    case eEventListenerOptions: {
      SetAsEventListenerOptions() = aOther.GetAsEventListenerOptions();
      break;
    }
    case eBoolean: {
      SetAsBoolean() = aOther.GetAsBoolean();
      break;
    }
  }
  return *this;
}


bool
AddEventListenerOptionsOrBoolean::ToJSVal(JSContext* cx, JS::Handle<JSObject*> scopeObj, JS::MutableHandle<JS::Value> rval) const
{
  switch (mType) {
    case eUninitialized: {
      return false;
      break;
    }
    case eAddEventListenerOptions: {
      if (!mValue.mAddEventListenerOptions.Value().ToObjectInternal(cx, rval)) {
        return false;
      }
      return true;
      break;
    }
    case eBoolean: {
      rval.setBoolean(mValue.mBoolean.Value());
      return true;
      break;
    }
    default: {
      return false;
      break;
    }
  }

  return false;
}


AddEventListenerOptions&
OwningAddEventListenerOptionsOrBoolean::RawSetAsAddEventListenerOptions()
{
  if (mType == eAddEventListenerOptions) {
    return mValue.mAddEventListenerOptions.Value();
  }
  MOZ_ASSERT(mType == eUninitialized);
  mType = eAddEventListenerOptions;
  return mValue.mAddEventListenerOptions.SetValue();
}

AddEventListenerOptions&
OwningAddEventListenerOptionsOrBoolean::SetAsAddEventListenerOptions()
{
  if (mType == eAddEventListenerOptions) {
    return mValue.mAddEventListenerOptions.Value();
  }
  Uninit();
  mType = eAddEventListenerOptions;
  return mValue.mAddEventListenerOptions.SetValue();
}

bool
OwningAddEventListenerOptionsOrBoolean::TrySetToAddEventListenerOptions(JSContext* cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
  tryNext = false;
  { // scope for memberSlot
    AddEventListenerOptions& memberSlot = RawSetAsAddEventListenerOptions();
    if (!IsConvertibleToDictionary(value)) {
      DestroyAddEventListenerOptions();
      tryNext = true;
      return true;
    }
    if (!memberSlot.Init(cx, value,  "Member of AddEventListenerOptionsOrBoolean", passedToJSImpl)) {
      return false;
    }
  }
  return true;
}

void
OwningAddEventListenerOptionsOrBoolean::DestroyAddEventListenerOptions()
{
  MOZ_ASSERT(IsAddEventListenerOptions(), "Wrong type!");
  mValue.mAddEventListenerOptions.Destroy();
  mType = eUninitialized;
}




bool&
OwningAddEventListenerOptionsOrBoolean::RawSetAsBoolean()
{
  if (mType == eBoolean) {
    return mValue.mBoolean.Value();
  }
  MOZ_ASSERT(mType == eUninitialized);
  mType = eBoolean;
  return mValue.mBoolean.SetValue();
}

bool&
OwningAddEventListenerOptionsOrBoolean::SetAsBoolean()
{
  if (mType == eBoolean) {
    return mValue.mBoolean.Value();
  }
  Uninit();
  mType = eBoolean;
  return mValue.mBoolean.SetValue();
}

bool
OwningAddEventListenerOptionsOrBoolean::TrySetToBoolean(JSContext* cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
  tryNext = false;
  { // scope for memberSlot
    bool& memberSlot = RawSetAsBoolean();
    if (!ValueToPrimitive<bool, eDefault>(cx, value, &memberSlot)) {
      return false;
    }
  }
  return true;
}

void
OwningAddEventListenerOptionsOrBoolean::DestroyBoolean()
{
  MOZ_ASSERT(IsBoolean(), "Wrong type!");
  mValue.mBoolean.Destroy();
  mType = eUninitialized;
}




void
OwningAddEventListenerOptionsOrBoolean::Uninit()
{
  switch (mType) {
    case eUninitialized: {
      break;
    }
    case eAddEventListenerOptions: {
      DestroyAddEventListenerOptions();
      break;
    }
    case eBoolean: {
      DestroyBoolean();
      break;
    }
  }
}

bool
OwningAddEventListenerOptionsOrBoolean::ToJSVal(JSContext* cx, JS::Handle<JSObject*> scopeObj, JS::MutableHandle<JS::Value> rval) const
{
  switch (mType) {
    case eUninitialized: {
      return false;
      break;
    }
    case eAddEventListenerOptions: {
      if (!mValue.mAddEventListenerOptions.Value().ToObjectInternal(cx, rval)) {
        return false;
      }
      return true;
      break;
    }
    case eBoolean: {
      rval.setBoolean(mValue.mBoolean.Value());
      return true;
      break;
    }
    default: {
      return false;
      break;
    }
  }

  return false;
}

void
OwningAddEventListenerOptionsOrBoolean::TraceUnion(JSTracer* trc)
{
}

OwningAddEventListenerOptionsOrBoolean&
OwningAddEventListenerOptionsOrBoolean::operator=(const OwningAddEventListenerOptionsOrBoolean& aOther)
{
  switch (aOther.mType) {
    case eUninitialized: {
      MOZ_ASSERT(mType == eUninitialized,
                 "We need to destroy ourselves?");
      break;
    }
    case eAddEventListenerOptions: {
      SetAsAddEventListenerOptions() = aOther.GetAsAddEventListenerOptions();
      break;
    }
    case eBoolean: {
      SetAsBoolean() = aOther.GetAsBoolean();
      break;
    }
  }
  return *this;
}


namespace EventTarget_Binding {

MOZ_CAN_RUN_SCRIPT static bool
addEventListener(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::EventTarget* self, const JSJitMethodCallArgs& args)
{
  AUTO_PROFILER_LABEL_FAST("EventTarget.addEventListener", DOM, cx);

  if (MOZ_UNLIKELY(args.length() < 2)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "EventTarget.addEventListener");
  }
  binding_detail::FakeString arg0;
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
    return false;
  }
  RootedCallback<RefPtr<binding_detail::FastEventListener>> arg1(cx);
  if (args[1].isObject()) {
    { // scope for tempRoot and tempGlobalRoot if needed
      arg1 = new binding_detail::FastEventListener(&args[1].toObject(), JS::CurrentGlobalOrNull(cx));
    }
  } else if (args[1].isNullOrUndefined()) {
    arg1 = nullptr;
  } else {
    ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Argument 2 of EventTarget.addEventListener");
    return false;
  }
  AddEventListenerOptionsOrBoolean arg2;
  AddEventListenerOptionsOrBooleanArgument arg2_holder(arg2);
  if (!(args.hasDefined(2))) {
    if (!arg2.RawSetAsAddEventListenerOptions().Init(cx, JS::NullHandleValue, "Member of AddEventListenerOptionsOrBoolean")) {
      return false;
    }
  } else {
    {
      bool done = false, failed = false, tryNext;
      if (!done) {
        done = (failed = !arg2_holder.TrySetToAddEventListenerOptions(cx, args[2], tryNext, false)) || !tryNext;
      }
      if (!done) {
        do {
          done = (failed = !arg2_holder.TrySetToBoolean(cx, args[2], tryNext)) || !tryNext;
          break;
        } while (false);
      }
      if (failed) {
        return false;
      }
      if (!done) {
        ThrowErrorMessage(cx, MSG_NOT_IN_UNION, "Argument 3 of EventTarget.addEventListener", "AddEventListenerOptions");
        return false;
      }
    }
  }
  Nullable<bool> arg3;
  if (!(args.hasDefined(3)) || args[3].isNullOrUndefined()) {
    arg3.SetNull();
  } else if (!ValueToPrimitive<bool, eDefault>(cx, args[3], &arg3.SetValue())) {
    return false;
  }
  FastErrorResult rv;
  self->AddEventListener(NonNullHelper(Constify(arg0)), MOZ_KnownLive(Constify(arg1)), Constify(arg2), Constify(arg3), rv);
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setUndefined();
  return true;
}

static const JSJitInfo addEventListener_methodinfo = {
  { (JSJitGetterOp)addEventListener },
  { prototypes::id::EventTarget },
  { PrototypeTraits<prototypes::id::EventTarget>::Depth },
  JSJitInfo::Method,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

MOZ_CAN_RUN_SCRIPT static bool
removeEventListener(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::EventTarget* self, const JSJitMethodCallArgs& args)
{
  AUTO_PROFILER_LABEL_FAST("EventTarget.removeEventListener", DOM, cx);

  if (MOZ_UNLIKELY(args.length() < 2)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "EventTarget.removeEventListener");
  }
  binding_detail::FakeString arg0;
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
    return false;
  }
  RootedCallback<RefPtr<binding_detail::FastEventListener>> arg1(cx);
  if (args[1].isObject()) {
    { // scope for tempRoot and tempGlobalRoot if needed
      arg1 = new binding_detail::FastEventListener(&args[1].toObject(), JS::CurrentGlobalOrNull(cx));
    }
  } else if (args[1].isNullOrUndefined()) {
    arg1 = nullptr;
  } else {
    ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Argument 2 of EventTarget.removeEventListener");
    return false;
  }
  EventListenerOptionsOrBoolean arg2;
  EventListenerOptionsOrBooleanArgument arg2_holder(arg2);
  if (!(args.hasDefined(2))) {
    if (!arg2.RawSetAsEventListenerOptions().Init(cx, JS::NullHandleValue, "Member of EventListenerOptionsOrBoolean")) {
      return false;
    }
  } else {
    {
      bool done = false, failed = false, tryNext;
      if (!done) {
        done = (failed = !arg2_holder.TrySetToEventListenerOptions(cx, args[2], tryNext, false)) || !tryNext;
      }
      if (!done) {
        do {
          done = (failed = !arg2_holder.TrySetToBoolean(cx, args[2], tryNext)) || !tryNext;
          break;
        } while (false);
      }
      if (failed) {
        return false;
      }
      if (!done) {
        ThrowErrorMessage(cx, MSG_NOT_IN_UNION, "Argument 3 of EventTarget.removeEventListener", "EventListenerOptions");
        return false;
      }
    }
  }
  FastErrorResult rv;
  self->RemoveEventListener(NonNullHelper(Constify(arg0)), MOZ_KnownLive(Constify(arg1)), Constify(arg2), rv);
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setUndefined();
  return true;
}

static const JSJitInfo removeEventListener_methodinfo = {
  { (JSJitGetterOp)removeEventListener },
  { prototypes::id::EventTarget },
  { PrototypeTraits<prototypes::id::EventTarget>::Depth },
  JSJitInfo::Method,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

MOZ_CAN_RUN_SCRIPT static bool
dispatchEvent(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::EventTarget* self, const JSJitMethodCallArgs& args)
{
  AUTO_PROFILER_LABEL_FAST("EventTarget.dispatchEvent", DOM, cx);

  if (MOZ_UNLIKELY(args.length() < 1)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "EventTarget.dispatchEvent");
  }
  NonNull<mozilla::dom::Event> arg0;
  if (args[0].isObject()) {
    {
      nsresult rv = UnwrapObject<prototypes::id::Event, mozilla::dom::Event>(args[0], arg0);
      if (NS_FAILED(rv)) {
        ThrowErrorMessage(cx, MSG_DOES_NOT_IMPLEMENT_INTERFACE, "Argument 1 of EventTarget.dispatchEvent", "Event");
        return false;
      }
    }
  } else {
    ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Argument 1 of EventTarget.dispatchEvent");
    return false;
  }
  FastErrorResult rv;
  bool result(self->DispatchEvent(MOZ_KnownLive(NonNullHelper(arg0)), nsContentUtils::ThreadsafeIsSystemCaller(cx) ? CallerType::System : CallerType::NonSystem, rv));
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setBoolean(result);
  return true;
}

static const JSJitInfo dispatchEvent_methodinfo = {
  { (JSJitGetterOp)dispatchEvent },
  { prototypes::id::EventTarget },
  { PrototypeTraits<prototypes::id::EventTarget>::Depth },
  JSJitInfo::Method,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_BOOLEAN,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

MOZ_CAN_RUN_SCRIPT static bool
setEventHandler(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::EventTarget* self, const JSJitMethodCallArgs& args)
{
  AUTO_PROFILER_LABEL_FAST("EventTarget.setEventHandler", DOM, cx);

  if (MOZ_UNLIKELY(args.length() < 2)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "EventTarget.setEventHandler");
  }
  binding_detail::FakeString arg0;
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
    return false;
  }
  RootedCallback<RefPtr<binding_detail::FastEventHandlerNonNull>> arg1(cx);
  if (args[1].isObject()) {
    { // scope for tempRoot and tempGlobalRoot if needed
      arg1 = new binding_detail::FastEventHandlerNonNull(&args[1].toObject(), JS::CurrentGlobalOrNull(cx));
    }
  } else {
    arg1 = nullptr;
  }
  FastErrorResult rv;
  self->SetEventHandler(NonNullHelper(Constify(arg0)), Constify(arg1), rv);
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setUndefined();
  return true;
}

static const JSJitInfo setEventHandler_methodinfo = {
  { (JSJitGetterOp)setEventHandler },
  { prototypes::id::EventTarget },
  { PrototypeTraits<prototypes::id::EventTarget>::Depth },
  JSJitInfo::Method,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

MOZ_CAN_RUN_SCRIPT static bool
getEventHandler(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::EventTarget* self, const JSJitMethodCallArgs& args)
{
  AUTO_PROFILER_LABEL_FAST("EventTarget.getEventHandler", DOM, cx);

  if (MOZ_UNLIKELY(args.length() < 1)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "EventTarget.getEventHandler");
  }
  binding_detail::FakeString arg0;
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
    return false;
  }
  RefPtr<EventHandlerNonNull> result(self->GetEventHandler(NonNullHelper(Constify(arg0))));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (result) {
    args.rval().setObjectOrNull(GetCallbackFromCallbackObject(cx, result));
    if (!MaybeWrapObjectOrNullValue(cx, args.rval())) {
      return false;
    }
    return true;
  } else {
    args.rval().setNull();
    return true;
  }
}

static const JSJitInfo getEventHandler_methodinfo = {
  { (JSJitGetterOp)getEventHandler },
  { prototypes::id::EventTarget },
  { PrototypeTraits<prototypes::id::EventTarget>::Depth },
  JSJitInfo::Method,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_UNKNOWN,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

MOZ_CAN_RUN_SCRIPT static bool
get_ownerGlobal(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::EventTarget* self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_FAST("get EventTarget.ownerGlobal", DOM, cx);

  auto result(StrongOrRawPtr<nsPIDOMWindowOuter>(self->GetOwnerGlobalForBindings()));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!result) {
    args.rval().setNull();
    return true;
  }
  if (!WrapObject(cx, result, args.rval())) {
    return false;
  }
  return true;
}

static const JSJitInfo ownerGlobal_getterinfo = {
  { (JSJitGetterOp)get_ownerGlobal },
  { prototypes::id::EventTarget },
  { PrototypeTraits<prototypes::id::EventTarget>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_UNKNOWN,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

static bool
_addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
{
  mozilla::dom::EventTarget* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::EventTarget>(obj);
  // We don't want to preserve if we don't have a wrapper, and we
  // obviously can't preserve if we're not initialized.
  if (self && self->GetWrapperPreserveColor()) {
    PreserveWrapper(self);
  }
  return true;
}

static void
_finalize(js::FreeOp* fop, JSObject* obj)
{
  mozilla::dom::EventTarget* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::EventTarget>(obj);
  if (self) {
    ClearWrapper(self, self, obj);
    AddForDeferredFinalization<mozilla::dom::EventTarget>(self);
  }
}

static size_t
_objectMoved(JSObject* obj, JSObject* old)
{
  mozilla::dom::EventTarget* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::EventTarget>(obj);
  if (self) {
    UpdateWrapper(self, self, obj, old);
  }

  return 0;
}

// We deliberately use brace-elision to make Visual Studio produce better initalization code.
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wmissing-braces"
#endif
static const JSFunctionSpec sMethods_specs[] = {
  JS_FNSPEC("addEventListener", (GenericMethod<MaybeGlobalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&addEventListener_methodinfo), 2, JSPROP_ENUMERATE, nullptr),
  JS_FNSPEC("removeEventListener", (GenericMethod<MaybeGlobalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&removeEventListener_methodinfo), 2, JSPROP_ENUMERATE, nullptr),
  JS_FNSPEC("dispatchEvent", (GenericMethod<MaybeGlobalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&dispatchEvent_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
  JS_FS_END
};
#if defined(__clang__)
#pragma clang diagnostic pop
#endif


static const Prefable<const JSFunctionSpec> sMethods[] = {
  { nullptr, &sMethods_specs[0] },
  { nullptr, nullptr }
};

static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
    "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
static_assert(3 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
    "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");

// We deliberately use brace-elision to make Visual Studio produce better initalization code.
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wmissing-braces"
#endif
static const JSFunctionSpec sChromeMethods_specs[] = {
  JS_FNSPEC("setEventHandler", (GenericMethod<MaybeGlobalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&setEventHandler_methodinfo), 2, JSPROP_ENUMERATE, nullptr),
  JS_FNSPEC("getEventHandler", (GenericMethod<MaybeGlobalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&getEventHandler_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
  JS_FS_END
};
#if defined(__clang__)
#pragma clang diagnostic pop
#endif


static const Prefable<const JSFunctionSpec> sChromeMethods[] = {
  { nullptr, &sChromeMethods_specs[0] },
  { nullptr, nullptr }
};

static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
    "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
static_assert(2 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
    "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");

// We deliberately use brace-elision to make Visual Studio produce better initalization code.
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wmissing-braces"
#endif
static const JSPropertySpec sChromeAttributes_specs[] = {
  { "ownerGlobal", JSPROP_ENUMERATE, GenericGetter<MaybeGlobalThisPolicy, ThrowExceptions>, &ownerGlobal_getterinfo, nullptr, nullptr },
  { nullptr, 0, nullptr, nullptr, nullptr, nullptr }
};
#if defined(__clang__)
#pragma clang diagnostic pop
#endif

// Can't be const because the pref-enabled boolean needs to be writable
static PrefableDisablers sChromeAttributes_disablers0 = {
  true, false, GlobalNames::AudioWorkletGlobalScope | GlobalNames::DedicatedWorkerGlobalScope | GlobalNames::ServiceWorkerGlobalScope | GlobalNames::SharedWorkerGlobalScope | GlobalNames::WorkerDebuggerGlobalScope, nullptr
};

static const Prefable<const JSPropertySpec> sChromeAttributes[] = {
  { &sChromeAttributes_disablers0, &sChromeAttributes_specs[0] },
  { nullptr, nullptr }
};

static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
    "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
    "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");


static uint16_t sNativeProperties_sortedPropertyIndices[3];
static PropertyInfo sNativeProperties_propertyInfos[3];

static const NativePropertiesN<1> sNativeProperties = {
  false, 0,
  false, 0,
  true,  0 /* sMethods */,
  false, 0,
  false, 0,
  false, 0,
  false, 0,
  -1,
  3,
  sNativeProperties_sortedPropertyIndices,
  {
    { sMethods, &sNativeProperties_propertyInfos[0] }
  }
};
static_assert(3 < 1ull << CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount),
    "We have a property info count that is oversized");

static uint16_t sChromeOnlyNativeProperties_sortedPropertyIndices[3];
static PropertyInfo sChromeOnlyNativeProperties_propertyInfos[3];

static const NativePropertiesN<2> sChromeOnlyNativeProperties = {
  false, 0,
  false, 0,
  true,  0 /* sChromeMethods */,
  true,  1 /* sChromeAttributes */,
  false, 0,
  false, 0,
  false, 0,
  -1,
  3,
  sChromeOnlyNativeProperties_sortedPropertyIndices,
  {
    { sChromeMethods, &sChromeOnlyNativeProperties_propertyInfos[0] },
    { sChromeAttributes, &sChromeOnlyNativeProperties_propertyInfos[2] }
  }
};
static_assert(3 < 1ull << CHAR_BIT * sizeof(sChromeOnlyNativeProperties.propertyInfoCount),
    "We have a property info count that is oversized");

static bool
_constructor(JSContext* cx, unsigned argc, JS::Value* vp)
{
  AUTO_PROFILER_LABEL_FAST("EventTarget constructor", DOM, cx);

  JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
  JS::Rooted<JSObject*> obj(cx, &args.callee());
  if (!args.isConstructing()) {
    // XXXbz wish I could get the name from the callee instead of
    // Adding more relocations
    return ThrowConstructorWithoutNew(cx, "EventTarget");
  }

  JS::Rooted<JSObject*> desiredProto(cx);
  if (!GetDesiredProto(cx, args, &desiredProto)) {
    return false;
  }

  GlobalObject global(cx, obj);
  if (global.Failed()) {
    return false;
  }

  bool objIsXray = xpc::WrapperFactory::IsXrayWrapper(obj);
  Maybe<JSAutoRealm> ar;
  if (objIsXray) {
    obj = js::CheckedUnwrap(obj);
    if (!obj) {
      return false;
    }
    ar.emplace(cx, obj);
    if (!JS_WrapObject(cx, &desiredProto)) {
      return false;
    }
  }
  FastErrorResult rv;
  auto result(StrongOrRawPtr<mozilla::dom::EventTarget>(mozilla::dom::EventTarget::Constructor(global, rv)));
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  static_assert(!IsPointer<decltype(result)>::value,
                "NewObject implies that we need to keep the object alive with a strong reference.");
  if (!GetOrCreateDOMReflector(cx, result, args.rval(), desiredProto)) {
    MOZ_ASSERT(JS_IsExceptionPending(cx));
    return false;
  }
  return true;
}

static const js::ClassOps sInterfaceObjectClassOps = {
    nullptr,               /* addProperty */
    nullptr,               /* delProperty */
    nullptr,               /* enumerate */
    nullptr,               /* newEnumerate */
    nullptr,               /* resolve */
    nullptr,               /* mayResolve */
    nullptr,               /* finalize */
    _constructor, /* call */
    nullptr,               /* hasInstance */
    _constructor, /* construct */
    nullptr,               /* trace */
};

static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
  {
    "Function",
    JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
    &sInterfaceObjectClassOps,
    JS_NULL_CLASS_SPEC,
    JS_NULL_CLASS_EXT,
    &sInterfaceObjectClassObjectOps
  },
  eInterface,
  true,
  prototypes::id::EventTarget,
  PrototypeTraits<prototypes::id::EventTarget>::Depth,
  sNativePropertyHooks,
  "function EventTarget() {\n    [native code]\n}",
  JS::GetRealmFunctionPrototype
};

static const DOMIfaceAndProtoJSClass sPrototypeClass = {
  {
    "EventTargetPrototype",
    JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),
    JS_NULL_CLASS_OPS,
    JS_NULL_CLASS_SPEC,
    JS_NULL_CLASS_EXT,
    JS_NULL_OBJECT_OPS
  },
  eInterfacePrototype,
  false,
  prototypes::id::EventTarget,
  PrototypeTraits<prototypes::id::EventTarget>::Depth,
  sNativePropertyHooks,
  "[object EventTargetPrototype]",
  JS::GetRealmObjectPrototype
};

static const js::ClassOps sClassOps = {
  _addProperty, /* addProperty */
  nullptr,               /* delProperty */
  nullptr,               /* enumerate */
  nullptr, /* newEnumerate */
  nullptr, /* resolve */
  nullptr, /* mayResolve */
  _finalize, /* finalize */
  nullptr, /* call */
  nullptr,               /* hasInstance */
  nullptr,               /* construct */
  nullptr, /* trace */
};

static const js::ClassExtension sClassExtension = {
  nullptr, /* weakmapKeyDelegateOp */
  _objectMoved /* objectMovedOp */
};

static const DOMJSClass sClass = {
  { "EventTarget",
    JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
    &sClassOps,
    JS_NULL_CLASS_SPEC,
    &sClassExtension,
    JS_NULL_OBJECT_OPS
  },
  { prototypes::id::EventTarget, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
  IsBaseOf<nsISupports, mozilla::dom::EventTarget >::value,
  sNativePropertyHooks,
  FindAssociatedGlobalForNative<mozilla::dom::EventTarget>::Get,
  GetProtoObjectHandle,
  GetCCParticipant<mozilla::dom::EventTarget>::Get()
};
static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
              "Must have the right minimal number of reserved slots.");
static_assert(1 >= 1,
              "Must have enough reserved slots.");

const JSClass*
GetJSClass()
{
  return sClass.ToJSClass();
}

bool
Wrap(JSContext* aCx, mozilla::dom::EventTarget* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
  static_assert(!IsBaseOf<NonRefcountedDOMObject, mozilla::dom::EventTarget>::value,
                "Shouldn't have wrappercached things that are not refcounted.");
  MOZ_ASSERT(static_cast<mozilla::dom::EventTarget*>(aObject) ==
             reinterpret_cast<mozilla::dom::EventTarget*>(aObject),
             "Multiple inheritance for mozilla::dom::EventTarget is broken.");
  MOZ_ASSERT(ToSupportsIsCorrect(aObject));
  MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
  MOZ_ASSERT(!aCache->GetWrapper(),
             "You should probably not be using Wrap() directly; use "
             "GetOrCreateDOMReflector instead");

  MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
             "nsISupports must be on our primary inheritance chain");

  JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
  if (!global) {
    return false;
  }
  MOZ_ASSERT(JS_IsGlobalObject(global));
  MOZ_ASSERT(JS::ObjectIsNotGray(global));

  // That might have ended up wrapping us already, due to the wonders
  // of XBL.  Check for that, and bail out as needed.
  aReflector.set(aCache->GetWrapper());
  if (aReflector) {
#ifdef DEBUG
    AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
#endif // DEBUG
    return true;
  }

  JSAutoRealm ar(aCx, global);
  JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
  if (!canonicalProto) {
    return false;
  }
  JS::Rooted<JSObject*> proto(aCx);
  if (aGivenProto) {
    proto = aGivenProto;
    // Unfortunately, while aGivenProto was in the compartment of aCx
    // coming in, we changed compartments to that of "parent" so may need
    // to wrap the proto here.
    if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
      if (!JS_WrapObject(aCx, &proto)) {
        return false;
      }
    }
  } else {
    proto = canonicalProto;
  }

  BindingJSObjectCreator<mozilla::dom::EventTarget> creator(aCx);
  creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
  if (!aReflector) {
    return false;
  }

  aCache->SetWrapper(aReflector);
  creator.InitializationSucceeded();

  MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
             aCache->GetWrapperPreserveColor() == aReflector);
  // If proto != canonicalProto, we have to preserve our wrapper;
  // otherwise we won't be able to properly recreate it later, since
  // we won't know what proto to use.  Note that we don't check
  // aGivenProto here, since it's entirely possible (and even
  // somewhat common) to have a non-null aGivenProto which is the
  // same as canonicalProto.
  if (proto != canonicalProto) {
    PreserveWrapper(aObject);
  }

  return true;
}

const NativePropertyHooks sNativePropertyHooks[] = { {
  nullptr,
  nullptr,
  nullptr,
  { sNativeProperties.Upcast(), sChromeOnlyNativeProperties.Upcast() },
  prototypes::id::EventTarget,
  constructors::id::EventTarget,
  nullptr,
  &DefaultXrayExpandoObjectClass
} };

void
CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
{
  JS::Rooted<JSObject*> parentProto(aCx, JS::GetRealmObjectPrototype(aCx));
  if (!parentProto) {
    return;
  }

  JS::Rooted<JSObject*> constructorProto(aCx, JS::GetRealmFunctionPrototype(aCx));
  if (!constructorProto) {
    return;
  }

  static bool sIdsInited = false;
  if (!sIdsInited && NS_IsMainThread()) {
    if (!InitIds(aCx, sNativeProperties.Upcast())) {
      return;
    }
    if (!InitIds(aCx, sChromeOnlyNativeProperties.Upcast())) {
      return;
    }
    sIdsInited = true;
  }

  JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::EventTarget);
  JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::EventTarget);
  dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
                              &sPrototypeClass.mBase, protoCache,
                              nullptr,
                              constructorProto, &sInterfaceObjectClass.mBase, 0, nullptr,
                              interfaceCache,
                              sNativeProperties.Upcast(),
                              sChromeOnlyNativeProperties.Upcast(),
                              "EventTarget", aDefineOnGlobal,
                              nullptr,
                              false);

  if (*&aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::EventTarget)) {
    bool succeeded;
    JS::Handle<JSObject*> prot = GetProtoObjectHandle(aCx);
    if (!JS_SetImmutablePrototype(aCx, prot, &succeeded)) {
      *protoCache = nullptr;
      if (interfaceCache) {
        *interfaceCache = nullptr;
      }
      return;
    }

    MOZ_ASSERT(succeeded,
               "making a fresh prototype object's [[Prototype]] "
               "immutable can internally fail, but it should "
               "never be unsuccessful");
  }
}

JSObject*
GetProtoObject(JSContext* aCx)
{
  return GetProtoObjectHandle(aCx);
}

JSObject*
GetConstructorObject(JSContext* aCx)
{
  return GetConstructorObjectHandle(aCx);
}

} // namespace EventTarget_Binding



} // namespace dom
} // namespace mozilla

Coverage Report

Created: 2018-09-25 14:53