/* THIS FILE IS AUTOGENERATED FROM MediaSession.webidl BY Codegen.py - DO NOT EDIT */

#include <type_traits>
#include "AtomList.h"
#include "MainThreadUtils.h"
#include "MediaSessionBinding.h"
#include "WrapperFactory.h"
#include "XrayWrapper.h"
#include "js/Array.h"
#include "js/CallAndConstruct.h"
#include "js/Exception.h"
#include "js/ForOfIterator.h"
#include "js/MapAndSet.h"
#include "js/Object.h"
#include "js/PropertyAndElement.h"
#include "js/PropertyDescriptor.h"
#include "js/experimental/JitInfo.h"
#include "jsapi.h"
#include "mozilla/Atomics.h"
#include "mozilla/FloatingPoint.h"
#include "mozilla/OwningNonNull.h"
#include "mozilla/ProfilerLabels.h"
#include "mozilla/dom/BindingCallContext.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/DOMJSClass.h"
#include "mozilla/dom/MediaMetadata.h"
#include "mozilla/dom/MediaSession.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/XrayExpandoClass.h"
#include "nsContentUtils.h"

namespace mozilla {

namespace dom {

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


namespace binding_detail {
constexpr nsLiteralCString EnumStrings<MediaSessionPlaybackState>::Values[3];
} // namespace binding_detail

bool
ToJSValue(JSContext* aCx, MediaSessionPlaybackState aArgument, JS::MutableHandle<JS::Value> aValue)
{
  MOZ_ASSERT(uint32_t(aArgument) < std::size(binding_detail::EnumStrings<MediaSessionPlaybackState>::Values));
  JSString* resultStr =
    JS_NewStringCopyN(aCx, binding_detail::EnumStrings<MediaSessionPlaybackState>::Values[uint32_t(aArgument)].BeginReading(),
                      binding_detail::EnumStrings<MediaSessionPlaybackState>::Values[uint32_t(aArgument)].Length());
  if (!resultStr) {
    return false;
  }
  aValue.setString(resultStr);
  return true;
}


namespace binding_detail {
constexpr nsLiteralCString EnumStrings<MediaSessionAction>::Values[9];
} // namespace binding_detail

bool
ToJSValue(JSContext* aCx, MediaSessionAction aArgument, JS::MutableHandle<JS::Value> aValue)
{
  MOZ_ASSERT(uint32_t(aArgument) < std::size(binding_detail::EnumStrings<MediaSessionAction>::Values));
  JSString* resultStr =
    JS_NewStringCopyN(aCx, binding_detail::EnumStrings<MediaSessionAction>::Values[uint32_t(aArgument)].BeginReading(),
                      binding_detail::EnumStrings<MediaSessionAction>::Values[uint32_t(aArgument)].Length());
  if (!resultStr) {
    return false;
  }
  aValue.setString(resultStr);
  return true;
}



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




bool
MediaImage::InitIds(JSContext* cx, MediaImageAtoms* atomsCache)
{
  MOZ_ASSERT(reinterpret_cast<jsid*>(atomsCache)->isVoid());

  // Initialize these in reverse order so that any failure leaves the first one
  // uninitialized.
  if (!atomsCache->type_id.init(cx, "type") ||
      !atomsCache->src_id.init(cx, "src") ||
      !atomsCache->sizes_id.init(cx, "sizes")) {
    return false;
  }
  return true;
}

bool
MediaImage::Init(BindingCallContext& 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());
  MediaImageAtoms* atomsCache = nullptr;
  if (cx) {
    atomsCache = GetAtomCache<MediaImageAtoms>(cx);
    if (reinterpret_cast<jsid*>(atomsCache)->isVoid() &&
        !InitIds(cx, atomsCache)) {
      return false;
    }
  }

  if (!IsConvertibleToDictionary(val)) {
    return cx.ThrowErrorMessage<MSG_CONVERSION_ERROR>(sourceDescription, "dictionary");
  }

  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->sizes_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    if (!ConvertJSValueToString(cx, temp.ref(), eStringify, eStringify, mSizes)) {
      return false;
    }
  } else {
    mSizes.AssignLiteral(u"");
  }
  mIsAnyMemberPresent = true;

  if (!isNull) {
    if (!JS_GetPropertyById(cx, *object, atomsCache->src_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    if (!ConvertJSValueToString(cx, temp.ref(), eStringify, eStringify, mSrc)) {
      return false;
    }
    if (!NormalizeUSVString(mSrc)) {
      JS_ReportOutOfMemory(cx);
      return false;
    }
    mIsAnyMemberPresent = true;
  } else if (cx) {
    // Don't error out if we have no cx.  In that
    // situation the caller is default-constructing us and we'll
    // just assume they know what they're doing.
    return cx.ThrowErrorMessage<MSG_MISSING_REQUIRED_DICTIONARY_MEMBER>("'src' member of MediaImage");
  }

  if (!isNull) {
    if (!JS_GetPropertyById(cx, *object, atomsCache->type_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    if (!ConvertJSValueToString(cx, temp.ref(), eStringify, eStringify, mType)) {
      return false;
    }
  } else {
    mType.AssignLiteral(u"");
  }
  mIsAnyMemberPresent = true;
  return true;
}

bool
MediaImage::Init(JSContext* cx_, JS::Handle<JS::Value> val, const char* sourceDescription, bool passedToJSImpl)
{
  // We don't want to use sourceDescription for our context here;
  // that's not really what it's formatted for.
  BindingCallContext cx(cx_, nullptr);
  return Init(cx, val, sourceDescription, passedToJSImpl);
}

bool
MediaImage::ToObjectInternal(JSContext* cx, JS::MutableHandle<JS::Value> rval) const
{
  MediaImageAtoms* atomsCache = GetAtomCache<MediaImageAtoms>(cx);
  if (reinterpret_cast<jsid*>(atomsCache)->isVoid() &&
      !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);
    nsString const & currentValue = mSizes;
    if (!xpc::NonVoidStringToJsval(cx, currentValue, &temp)) {
      return false;
    }
    if (!JS_DefinePropertyById(cx, obj, atomsCache->sizes_id, temp, JSPROP_ENUMERATE)) {
      return false;
    }
    break;
  } while(false);

  do {
    // block for our 'break' successCode and scope for 'temp' and 'currentValue'
    JS::Rooted<JS::Value> temp(cx);
    nsString const & currentValue = mSrc;
    if (!xpc::NonVoidStringToJsval(cx, currentValue, &temp)) {
      return false;
    }
    if (!JS_DefinePropertyById(cx, obj, atomsCache->src_id, temp, JSPROP_ENUMERATE)) {
      return false;
    }
    break;
  } while(false);

  do {
    // block for our 'break' successCode and scope for 'temp' and 'currentValue'
    JS::Rooted<JS::Value> temp(cx);
    nsString const & currentValue = mType;
    if (!xpc::NonVoidStringToJsval(cx, currentValue, &temp)) {
      return false;
    }
    if (!JS_DefinePropertyById(cx, obj, atomsCache->type_id, temp, JSPROP_ENUMERATE)) {
      return false;
    }
    break;
  } while(false);

  return true;
}

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

MediaImage&
MediaImage::operator=(const MediaImage& aOther)
{
  DictionaryBase::operator=(aOther);
  mSizes = aOther.mSizes;
  mSrc = aOther.mSrc;
  mType = aOther.mType;
  return *this;
}



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




bool
MediaPositionState::InitIds(JSContext* cx, MediaPositionStateAtoms* atomsCache)
{
  MOZ_ASSERT(reinterpret_cast<jsid*>(atomsCache)->isVoid());

  // Initialize these in reverse order so that any failure leaves the first one
  // uninitialized.
  if (!atomsCache->position_id.init(cx, "position") ||
      !atomsCache->playbackRate_id.init(cx, "playbackRate") ||
      !atomsCache->duration_id.init(cx, "duration")) {
    return false;
  }
  return true;
}

bool
MediaPositionState::Init(BindingCallContext& 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());
  MediaPositionStateAtoms* atomsCache = nullptr;
  if (cx) {
    atomsCache = GetAtomCache<MediaPositionStateAtoms>(cx);
    if (reinterpret_cast<jsid*>(atomsCache)->isVoid() &&
        !InitIds(cx, atomsCache)) {
      return false;
    }
  }

  if (!IsConvertibleToDictionary(val)) {
    return cx.ThrowErrorMessage<MSG_CONVERSION_ERROR>(sourceDescription, "dictionary");
  }

  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->duration_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    mDuration.Construct();
    if (!ValueToPrimitive<double, eDefault>(cx, temp.ref(), "'duration' member of MediaPositionState", &(mDuration.Value()))) {
      return false;
    } else if (!std::isfinite((mDuration.Value()))) {
      cx.ThrowErrorMessage<MSG_NOT_FINITE>("'duration' member of MediaPositionState");
      return false;
    }
    mIsAnyMemberPresent = true;
  }

  if (!isNull) {
    if (!JS_GetPropertyById(cx, *object, atomsCache->playbackRate_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    mPlaybackRate.Construct();
    if (!ValueToPrimitive<double, eDefault>(cx, temp.ref(), "'playbackRate' member of MediaPositionState", &(mPlaybackRate.Value()))) {
      return false;
    } else if (!std::isfinite((mPlaybackRate.Value()))) {
      cx.ThrowErrorMessage<MSG_NOT_FINITE>("'playbackRate' member of MediaPositionState");
      return false;
    }
    mIsAnyMemberPresent = true;
  }

  if (!isNull) {
    if (!JS_GetPropertyById(cx, *object, atomsCache->position_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    mPosition.Construct();
    if (!ValueToPrimitive<double, eDefault>(cx, temp.ref(), "'position' member of MediaPositionState", &(mPosition.Value()))) {
      return false;
    } else if (!std::isfinite((mPosition.Value()))) {
      cx.ThrowErrorMessage<MSG_NOT_FINITE>("'position' member of MediaPositionState");
      return false;
    }
    mIsAnyMemberPresent = true;
  }
  return true;
}

bool
MediaPositionState::Init(JSContext* cx_, JS::Handle<JS::Value> val, const char* sourceDescription, bool passedToJSImpl)
{
  // We don't want to use sourceDescription for our context here;
  // that's not really what it's formatted for.
  BindingCallContext cx(cx_, nullptr);
  return Init(cx, val, sourceDescription, passedToJSImpl);
}

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

MediaPositionState&
MediaPositionState::operator=(const MediaPositionState& aOther)
{
  DictionaryBase::operator=(aOther);
  mDuration.Reset();
  if (aOther.mDuration.WasPassed()) {
    mDuration.Construct(aOther.mDuration.Value());
  }
  mPlaybackRate.Reset();
  if (aOther.mPlaybackRate.WasPassed()) {
    mPlaybackRate.Construct(aOther.mPlaybackRate.Value());
  }
  mPosition.Reset();
  if (aOther.mPosition.WasPassed()) {
    mPosition.Construct(aOther.mPosition.Value());
  }
  return *this;
}



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




bool
MediaSessionActionDetails::InitIds(JSContext* cx, MediaSessionActionDetailsAtoms* atomsCache)
{
  MOZ_ASSERT(reinterpret_cast<jsid*>(atomsCache)->isVoid());

  // Initialize these in reverse order so that any failure leaves the first one
  // uninitialized.
  if (!atomsCache->seekTime_id.init(cx, "seekTime") ||
      !atomsCache->seekOffset_id.init(cx, "seekOffset") ||
      !atomsCache->fastSeek_id.init(cx, "fastSeek") ||
      !atomsCache->action_id.init(cx, "action")) {
    return false;
  }
  return true;
}

bool
MediaSessionActionDetails::Init(BindingCallContext& 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());
  MediaSessionActionDetailsAtoms* atomsCache = nullptr;
  if (cx) {
    atomsCache = GetAtomCache<MediaSessionActionDetailsAtoms>(cx);
    if (reinterpret_cast<jsid*>(atomsCache)->isVoid() &&
        !InitIds(cx, atomsCache)) {
      return false;
    }
  }

  if (!IsConvertibleToDictionary(val)) {
    return cx.ThrowErrorMessage<MSG_CONVERSION_ERROR>(sourceDescription, "dictionary");
  }

  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->action_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    {
      int index;
      if (!binding_detail::FindEnumStringIndex<true>(cx, temp.ref(),
                                                                         binding_detail::EnumStrings<MediaSessionAction>::Values,
                                                                         "MediaSessionAction", "'action' member of MediaSessionActionDetails",
                                                                         &index)) {
        return false;
      }
      MOZ_ASSERT(index >= 0);
      mAction = static_cast<MediaSessionAction>(index);
    }
    mIsAnyMemberPresent = true;
  } else if (cx) {
    // Don't error out if we have no cx.  In that
    // situation the caller is default-constructing us and we'll
    // just assume they know what they're doing.
    return cx.ThrowErrorMessage<MSG_MISSING_REQUIRED_DICTIONARY_MEMBER>("'action' member of MediaSessionActionDetails");
  }

  if (!isNull) {
    if (!JS_GetPropertyById(cx, *object, atomsCache->fastSeek_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    mFastSeek.Construct();
    if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), "'fastSeek' member of MediaSessionActionDetails", &(mFastSeek.Value()))) {
      return false;
    }
    mIsAnyMemberPresent = true;
  }

  if (!isNull) {
    if (!JS_GetPropertyById(cx, *object, atomsCache->seekOffset_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    mSeekOffset.Construct();
    if (!ValueToPrimitive<double, eDefault>(cx, temp.ref(), "'seekOffset' member of MediaSessionActionDetails", &(mSeekOffset.Value()))) {
      return false;
    } else if (!std::isfinite((mSeekOffset.Value()))) {
      cx.ThrowErrorMessage<MSG_NOT_FINITE>("'seekOffset' member of MediaSessionActionDetails");
      return false;
    }
    mIsAnyMemberPresent = true;
  }

  if (!isNull) {
    if (!JS_GetPropertyById(cx, *object, atomsCache->seekTime_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    mSeekTime.Construct();
    if (!ValueToPrimitive<double, eDefault>(cx, temp.ref(), "'seekTime' member of MediaSessionActionDetails", &(mSeekTime.Value()))) {
      return false;
    } else if (!std::isfinite((mSeekTime.Value()))) {
      cx.ThrowErrorMessage<MSG_NOT_FINITE>("'seekTime' member of MediaSessionActionDetails");
      return false;
    }
    mIsAnyMemberPresent = true;
  }
  return true;
}

bool
MediaSessionActionDetails::Init(JSContext* cx_, JS::Handle<JS::Value> val, const char* sourceDescription, bool passedToJSImpl)
{
  // We don't want to use sourceDescription for our context here;
  // that's not really what it's formatted for.
  BindingCallContext cx(cx_, nullptr);
  return Init(cx, val, sourceDescription, passedToJSImpl);
}

bool
MediaSessionActionDetails::ToObjectInternal(JSContext* cx, JS::MutableHandle<JS::Value> rval) const
{
  MediaSessionActionDetailsAtoms* atomsCache = GetAtomCache<MediaSessionActionDetailsAtoms>(cx);
  if (reinterpret_cast<jsid*>(atomsCache)->isVoid() &&
      !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);
    MediaSessionAction const & currentValue = mAction;
    if (!ToJSValue(cx, currentValue, &temp)) {
      return false;
    }
    if (!JS_DefinePropertyById(cx, obj, atomsCache->action_id, temp, JSPROP_ENUMERATE)) {
      return false;
    }
    break;
  } while(false);

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

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

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

  return true;
}

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

MediaSessionActionDetails&
MediaSessionActionDetails::operator=(const MediaSessionActionDetails& aOther)
{
  DictionaryBase::operator=(aOther);
  mAction = aOther.mAction;
  mFastSeek.Reset();
  if (aOther.mFastSeek.WasPassed()) {
    mFastSeek.Construct(aOther.mFastSeek.Value());
  }
  mSeekOffset.Reset();
  if (aOther.mSeekOffset.WasPassed()) {
    mSeekOffset.Construct(aOther.mSeekOffset.Value());
  }
  mSeekTime.Reset();
  if (aOther.mSeekTime.WasPassed()) {
    mSeekTime.Construct(aOther.mSeekTime.Value());
  }
  return *this;
}


MOZ_CAN_RUN_SCRIPT void
MediaSessionActionHandler::Call(BindingCallContext& cx, JS::Handle<JS::Value> aThisVal, const MediaSessionActionDetails& details, ErrorResult& aRv)
{
  JS::Rooted<JS::Value> rval(cx);
  JS::RootedVector<JS::Value> argv(cx);
  if (!argv.resize(1)) {
    // That threw an exception on the JSContext, and our CallSetup will do
    // the right thing with that.
    return;
  }
  unsigned argc = 1;

  do {
    if (!details.ToObjectInternal(cx, argv[0])) {
      aRv.Throw(NS_ERROR_UNEXPECTED);
      return;
    }
    break;
  } while (false);

  JS::Rooted<JS::Value> callable(cx, JS::ObjectValue(*mCallback));
  if (!JS::Call(cx, aThisVal, callable,
                JS::HandleValueArray::subarray(argv, 0, argc), &rval)) {
    aRv.NoteJSContextException(cx);
    return;
  }
}




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




bool
MediaMetadataInit::InitIds(JSContext* cx, MediaMetadataInitAtoms* atomsCache)
{
  MOZ_ASSERT(reinterpret_cast<jsid*>(atomsCache)->isVoid());

  // Initialize these in reverse order so that any failure leaves the first one
  // uninitialized.
  if (!atomsCache->title_id.init(cx, "title") ||
      !atomsCache->artwork_id.init(cx, "artwork") ||
      !atomsCache->artist_id.init(cx, "artist") ||
      !atomsCache->album_id.init(cx, "album")) {
    return false;
  }
  return true;
}

bool
MediaMetadataInit::Init(BindingCallContext& 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());
  MediaMetadataInitAtoms* atomsCache = nullptr;
  if (cx) {
    atomsCache = GetAtomCache<MediaMetadataInitAtoms>(cx);
    if (reinterpret_cast<jsid*>(atomsCache)->isVoid() &&
        !InitIds(cx, atomsCache)) {
      return false;
    }
  }

  if (!IsConvertibleToDictionary(val)) {
    return cx.ThrowErrorMessage<MSG_CONVERSION_ERROR>(sourceDescription, "dictionary");
  }

  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->album_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    if (!ConvertJSValueToString(cx, temp.ref(), eStringify, eStringify, mAlbum)) {
      return false;
    }
  } else {
    mAlbum.AssignLiteral(u"");
  }
  mIsAnyMemberPresent = true;

  if (!isNull) {
    if (!JS_GetPropertyById(cx, *object, atomsCache->artist_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    if (!ConvertJSValueToString(cx, temp.ref(), eStringify, eStringify, mArtist)) {
      return false;
    }
  } else {
    mArtist.AssignLiteral(u"");
  }
  mIsAnyMemberPresent = true;

  if (!isNull) {
    if (!JS_GetPropertyById(cx, *object, atomsCache->artwork_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    if (temp.ref().isObject()) {
      JS::ForOfIterator iter(cx);
      if (!iter.init(temp.ref(), JS::ForOfIterator::AllowNonIterable)) {
        return false;
      }
      if (!iter.valueIsIterable()) {
        cx.ThrowErrorMessage<MSG_CONVERSION_ERROR>("'artwork' member of MediaMetadataInit", "sequence");
        return false;
      }
      Sequence<MediaImage> &arr = mArtwork;
      JS::Rooted<JS::Value> temp(cx);
      while (true) {
        bool done;
        if (!iter.next(&temp, &done)) {
          return false;
        }
        if (done) {
          break;
        }
        MediaImage* slotPtr = arr.AppendElement(mozilla::fallible);
        if (!slotPtr) {
          JS_ReportOutOfMemory(cx);
          return false;
        }
        MediaImage& slot = *slotPtr;
        if (!slot.Init(cx, temp, "Element of 'artwork' member of MediaMetadataInit", passedToJSImpl)) {
          return false;
        }
      }
    } else {
      cx.ThrowErrorMessage<MSG_CONVERSION_ERROR>("'artwork' member of MediaMetadataInit", "sequence");
      return false;
    }
  } else {
    /* mArtwork array is already empty; nothing to do */
  }
  mIsAnyMemberPresent = true;

  if (!isNull) {
    if (!JS_GetPropertyById(cx, *object, atomsCache->title_id, temp.ptr())) {
      return false;
    }
  }
  if (!isNull && !temp->isUndefined()) {
    if (!ConvertJSValueToString(cx, temp.ref(), eStringify, eStringify, mTitle)) {
      return false;
    }
  } else {
    mTitle.AssignLiteral(u"");
  }
  mIsAnyMemberPresent = true;
  return true;
}

bool
MediaMetadataInit::Init(JSContext* cx_, JS::Handle<JS::Value> val, const char* sourceDescription, bool passedToJSImpl)
{
  // We don't want to use sourceDescription for our context here;
  // that's not really what it's formatted for.
  BindingCallContext cx(cx_, nullptr);
  return Init(cx, val, sourceDescription, passedToJSImpl);
}

bool
MediaMetadataInit::ToObjectInternal(JSContext* cx, JS::MutableHandle<JS::Value> rval) const
{
  MediaMetadataInitAtoms* atomsCache = GetAtomCache<MediaMetadataInitAtoms>(cx);
  if (reinterpret_cast<jsid*>(atomsCache)->isVoid() &&
      !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);
    nsString const & currentValue = mAlbum;
    if (!xpc::NonVoidStringToJsval(cx, currentValue, &temp)) {
      return false;
    }
    if (!JS_DefinePropertyById(cx, obj, atomsCache->album_id, temp, JSPROP_ENUMERATE)) {
      return false;
    }
    break;
  } while(false);

  do {
    // block for our 'break' successCode and scope for 'temp' and 'currentValue'
    JS::Rooted<JS::Value> temp(cx);
    nsString const & currentValue = mArtist;
    if (!xpc::NonVoidStringToJsval(cx, currentValue, &temp)) {
      return false;
    }
    if (!JS_DefinePropertyById(cx, obj, atomsCache->artist_id, temp, JSPROP_ENUMERATE)) {
      return false;
    }
    break;
  } while(false);

  do {
    // block for our 'break' successCode and scope for 'temp' and 'currentValue'
    JS::Rooted<JS::Value> temp(cx);
    Sequence<MediaImage> const & currentValue = mArtwork;

    uint32_t length = currentValue.Length();
    JS::Rooted<JSObject*> returnArray(cx, JS::NewArrayObject(cx, length));
    if (!returnArray) {
      return false;
    }
    // Scope for 'tmp'
    {
      JS::Rooted<JS::Value> tmp(cx);
      for (uint32_t sequenceIdx0 = 0; sequenceIdx0 < length; ++sequenceIdx0) {
        // Control block to let us common up the JS_DefineElement calls when there
        // are different ways to succeed at wrapping the object.
        do {
          if (!currentValue[sequenceIdx0].ToObjectInternal(cx, &tmp)) {
            return false;
          }
          break;
        } while (false);
        if (!JS_DefineElement(cx, returnArray, sequenceIdx0, tmp,
                              JSPROP_ENUMERATE)) {
          return false;
        }
      }
    }
    temp.setObject(*returnArray);
    if (!JS_DefinePropertyById(cx, obj, atomsCache->artwork_id, temp, JSPROP_ENUMERATE)) {
      return false;
    }
    break;
  } while(false);

  do {
    // block for our 'break' successCode and scope for 'temp' and 'currentValue'
    JS::Rooted<JS::Value> temp(cx);
    nsString const & currentValue = mTitle;
    if (!xpc::NonVoidStringToJsval(cx, currentValue, &temp)) {
      return false;
    }
    if (!JS_DefinePropertyById(cx, obj, atomsCache->title_id, temp, JSPROP_ENUMERATE)) {
      return false;
    }
    break;
  } while(false);

  return true;
}

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

MediaMetadataInit&
MediaMetadataInit::operator=(const MediaMetadataInit& aOther)
{
  DictionaryBase::operator=(aOther);
  mAlbum = aOther.mAlbum;
  mArtist = aOther.mArtist;
  mArtwork = aOther.mArtwork;
  mTitle = aOther.mTitle;
  return *this;
}


namespace MediaMetadata_Binding {

MOZ_CAN_RUN_SCRIPT static bool
get_title(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "MediaMetadata", "title", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::MediaMetadata*>(void_self);
  DOMString result;
  // NOTE: This assert does NOT call the function.
  static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetTitle(result))>, "Should be returning void here");
  MOZ_KnownLive(self)->GetTitle(result);
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
    return false;
  }
  return true;
}

MOZ_CAN_RUN_SCRIPT static bool
set_title(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitSetterCallArgs args)
{
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "MediaMetadata", "title", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_SETTER) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::MediaMetadata*>(void_self);
  binding_detail::FakeString<char16_t> arg0;
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
    return false;
  }
  // NOTE: This assert does NOT call the function.
  static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->SetTitle(NonNullHelper(Constify(arg0))))>, "Should be returning void here");
  MOZ_KnownLive(self)->SetTitle(NonNullHelper(Constify(arg0)));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  return true;
}

static const JSJitInfo title_getterinfo = {
  { get_title },
  { prototypes::id::MediaMetadata },
  { PrototypeTraits<prototypes::id::MediaMetadata>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_STRING,  /* 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 const JSJitInfo title_setterinfo = {
  { (JSJitGetterOp)set_title },
  { prototypes::id::MediaMetadata },
  { PrototypeTraits<prototypes::id::MediaMetadata>::Depth },
  JSJitInfo::Setter,
  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. */
};

MOZ_CAN_RUN_SCRIPT static bool
get_artist(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "MediaMetadata", "artist", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::MediaMetadata*>(void_self);
  DOMString result;
  // NOTE: This assert does NOT call the function.
  static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetArtist(result))>, "Should be returning void here");
  MOZ_KnownLive(self)->GetArtist(result);
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
    return false;
  }
  return true;
}

MOZ_CAN_RUN_SCRIPT static bool
set_artist(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitSetterCallArgs args)
{
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "MediaMetadata", "artist", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_SETTER) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::MediaMetadata*>(void_self);
  binding_detail::FakeString<char16_t> arg0;
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
    return false;
  }
  // NOTE: This assert does NOT call the function.
  static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->SetArtist(NonNullHelper(Constify(arg0))))>, "Should be returning void here");
  MOZ_KnownLive(self)->SetArtist(NonNullHelper(Constify(arg0)));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  return true;
}

static const JSJitInfo artist_getterinfo = {
  { get_artist },
  { prototypes::id::MediaMetadata },
  { PrototypeTraits<prototypes::id::MediaMetadata>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_STRING,  /* 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 const JSJitInfo artist_setterinfo = {
  { (JSJitGetterOp)set_artist },
  { prototypes::id::MediaMetadata },
  { PrototypeTraits<prototypes::id::MediaMetadata>::Depth },
  JSJitInfo::Setter,
  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. */
};

MOZ_CAN_RUN_SCRIPT static bool
get_album(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "MediaMetadata", "album", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::MediaMetadata*>(void_self);
  DOMString result;
  // NOTE: This assert does NOT call the function.
  static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetAlbum(result))>, "Should be returning void here");
  MOZ_KnownLive(self)->GetAlbum(result);
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
    return false;
  }
  return true;
}

MOZ_CAN_RUN_SCRIPT static bool
set_album(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitSetterCallArgs args)
{
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "MediaMetadata", "album", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_SETTER) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::MediaMetadata*>(void_self);
  binding_detail::FakeString<char16_t> arg0;
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
    return false;
  }
  // NOTE: This assert does NOT call the function.
  static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->SetAlbum(NonNullHelper(Constify(arg0))))>, "Should be returning void here");
  MOZ_KnownLive(self)->SetAlbum(NonNullHelper(Constify(arg0)));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  return true;
}

static const JSJitInfo album_getterinfo = {
  { get_album },
  { prototypes::id::MediaMetadata },
  { PrototypeTraits<prototypes::id::MediaMetadata>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_STRING,  /* 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 const JSJitInfo album_setterinfo = {
  { (JSJitGetterOp)set_album },
  { prototypes::id::MediaMetadata },
  { PrototypeTraits<prototypes::id::MediaMetadata>::Depth },
  JSJitInfo::Setter,
  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. */
};

MOZ_CAN_RUN_SCRIPT static bool
get_artwork(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "MediaMetadata", "artwork", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::MediaMetadata*>(void_self);
  // Have to either root across the getter call or reget after.
  bool isXray;
  JS::Rooted<JSObject*> slotStorage(cx, GetCachedSlotStorageObject(cx, obj, &isXray));
  if (!slotStorage) {
    return false;
  }
  const size_t slotIndex = isXray ? (DOM_EXPANDO_RESERVED_SLOTS + 0) : (DOM_INSTANCE_RESERVED_SLOTS + 0);
  MOZ_ASSERT(slotIndex < JSCLASS_RESERVED_SLOTS(JS::GetClass(slotStorage)));
  {
    // Scope for cachedVal
    JS::Value cachedVal = JS::GetReservedSlot(slotStorage, slotIndex);
    if (!cachedVal.isUndefined()) {
      args.rval().set(cachedVal);
      // The cached value is in the compartment of slotStorage,
      // so wrap into the caller compartment as needed.
      return MaybeWrapNonDOMObjectValue(cx, args.rval());
    }
  }

  FastErrorResult rv;
  nsTArray<JSObject*> result;
  SequenceRooter<JSObject* > resultRooter(cx, &result);
  // NOTE: This assert does NOT call the function.
  static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetArtwork(cx, result, rv))>, "Should be returning void here");
  MOZ_KnownLive(self)->GetArtwork(cx, result, rv);
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "MediaMetadata.artwork getter"))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  {
    JS::Rooted<JSObject*> conversionScope(cx, isXray ? JS::CurrentGlobalOrNull(cx) : slotStorage);
    JSAutoRealm ar(cx, conversionScope);
    do { // block we break out of when done wrapping

      uint32_t length = result.Length();
      JS::Rooted<JSObject*> returnArray(cx, JS::NewArrayObject(cx, length));
      if (!returnArray) {
        return false;
      }
      // Scope for 'tmp'
      {
        JS::Rooted<JS::Value> tmp(cx);
        for (uint32_t sequenceIdx0 = 0; sequenceIdx0 < length; ++sequenceIdx0) {
          // Control block to let us common up the JS_DefineElement calls when there
          // are different ways to succeed at wrapping the object.
          do {
            JS::ExposeObjectToActiveJS(result[sequenceIdx0]);
            tmp.setObject(*result[sequenceIdx0]);
            if (!MaybeWrapObjectValue(cx, &tmp)) {
              return false;
            }
            break;
          } while (false);
          if (!JS_DefineElement(cx, returnArray, sequenceIdx0, tmp,
                                JSPROP_ENUMERATE)) {
            return false;
          }
        }
      }
      args.rval().setObject(*returnArray);
      break;
    } while (false);
    JS::Rooted<JSObject*> rvalObj(cx, &args.rval().toObject());
    if (!JS_FreezeObject(cx, rvalObj)) {
      return false;
    }
  }
  { // And now store things in the realm of our slotStorage.
    JSAutoRealm ar(cx, slotStorage);
    // Make a copy so that we don't do unnecessary wrapping on args.rval().
    JS::Rooted<JS::Value> storedVal(cx, args.rval());
    if (!MaybeWrapNonDOMObjectValue(cx, &storedVal)) {
      return false;
    }
    JS::SetReservedSlot(slotStorage, slotIndex, storedVal);
    if (!isXray) {
      // In the Xray case we don't need to do this, because getting the
      // expando object already preserved our wrapper.
      PreserveWrapper(self);
    }
  }
  // And now make sure args.rval() is in the caller realm.
  return MaybeWrapNonDOMObjectValue(cx, args.rval());
}

MOZ_CAN_RUN_SCRIPT static bool
set_artwork(JSContext* cx_, JS::Handle<JSObject*> obj, void* void_self, JSJitSetterCallArgs args)
{
  BindingCallContext cx(cx_, "MediaMetadata.artwork setter");
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "MediaMetadata", "artwork", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_SETTER) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::MediaMetadata*>(void_self);
  binding_detail::AutoSequence<JSObject*> arg0;
  SequenceRooter<JSObject*> arg0_holder(cx, &arg0);
  if (args[0].isObject()) {
    JS::ForOfIterator iter(cx);
    if (!iter.init(args[0], JS::ForOfIterator::AllowNonIterable)) {
      return false;
    }
    if (!iter.valueIsIterable()) {
      cx.ThrowErrorMessage<MSG_CONVERSION_ERROR>("Value being assigned", "sequence");
      return false;
    }
    binding_detail::AutoSequence<JSObject*> &arr = arg0;
    JS::Rooted<JS::Value> temp(cx);
    while (true) {
      bool done;
      if (!iter.next(&temp, &done)) {
        return false;
      }
      if (done) {
        break;
      }
      JSObject** slotPtr = arr.AppendElement(nullptr, mozilla::fallible);
      if (!slotPtr) {
        JS_ReportOutOfMemory(cx);
        return false;
      }
      JSObject*& slot = *slotPtr;
      if (temp.isObject()) {
        slot = &temp.toObject();
      } else {
        cx.ThrowErrorMessage<MSG_NOT_OBJECT>("Element of value being assigned");
        return false;
      }
    }
  } else {
    cx.ThrowErrorMessage<MSG_CONVERSION_ERROR>("Value being assigned", "sequence");
    return false;
  }
  FastErrorResult rv;
  // NOTE: This assert does NOT call the function.
  static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->SetArtwork(cx, Constify(arg0), rv))>, "Should be returning void here");
  MOZ_KnownLive(self)->SetArtwork(cx, Constify(arg0), rv);
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "MediaMetadata.artwork setter"))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  ClearCachedArtworkValue(self);
  return true;
}

static const JSJitInfo artwork_getterinfo = {
  { get_artwork },
  { prototypes::id::MediaMetadata },
  { PrototypeTraits<prototypes::id::MediaMetadata>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasDOMSets, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_OBJECT,  /* 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. */
  true, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  (DOM_INSTANCE_RESERVED_SLOTS + 0)   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert((DOM_INSTANCE_RESERVED_SLOTS + 0) <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert((DOM_INSTANCE_RESERVED_SLOTS + 0) < 2, "There is no slot for us");
static const JSJitInfo artwork_setterinfo = {
  { (JSJitGetterOp)set_artwork },
  { prototypes::id::MediaMetadata },
  { PrototypeTraits<prototypes::id::MediaMetadata>::Depth },
  JSJitInfo::Setter,
  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 void
_finalize(JS::GCContext* gcx, JSObject* obj)
{
  mozilla::dom::MediaMetadata* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::MediaMetadata>(obj);
  if (self) {
    JS::SetReservedSlot(obj, DOM_OBJECT_SLOT, JS::UndefinedValue());
    ClearWrapper(self, self, obj);
    if (size_t mallocBytes = BindingJSObjectMallocBytes(self)) {
      JS::RemoveAssociatedMemory(obj, mallocBytes,
                                 JS::MemoryUse::DOMBinding);
    }
    AddForDeferredFinalization<mozilla::dom::MediaMetadata>(self);
  }
}

MOZ_GLOBINIT static const JSPropertySpec sAttributes_specs[] = {
  JSPropertySpec::nativeAccessors("title", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &title_getterinfo, GenericSetter<NormalThisPolicy>, &title_setterinfo),
  JSPropertySpec::nativeAccessors("artist", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &artist_getterinfo, GenericSetter<NormalThisPolicy>, &artist_setterinfo),
  JSPropertySpec::nativeAccessors("album", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &album_getterinfo, GenericSetter<NormalThisPolicy>, &album_setterinfo),
  JSPropertySpec::nativeAccessors("artwork", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &artwork_getterinfo, GenericSetter<NormalThisPolicy>, &artwork_setterinfo),
  JS_PS_END
};


static const Prefable<const JSPropertySpec> sAttributes[] = {
  { nullptr, &sAttributes_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(4 <= 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[4];
static PropertyInfo sNativeProperties_propertyInfos[4];

static const NativePropertiesN<1> sNativeProperties = {
  false, 0,
  false, 0,
  false, 0,
  true,  0 /* sAttributes */,
  false, 0,
  false, 0,
  false, 0,
  -1,
  4,
  sNativeProperties_sortedPropertyIndices,
  {
    { sAttributes, &sNativeProperties_propertyInfos[0] }
  }
};
static_assert(4 < 1ull << (CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount)),
    "We have a property info count that is oversized");

// This may allocate too many slots, because we only really need
// slots for our non-interface-typed members that we cache.  But
// allocating slots only for those would make the slot index
// computations much more complicated, so let's do this the simple
// way for now.
DEFINE_XRAY_EXPANDO_CLASS_WITH_OPS(static, sXrayExpandoObjectClass, 1,
                                   &xpc::XrayExpandoObjectClassOps);

bool sNativePropertiesInited = false;
const NativePropertyHooks sNativePropertyHooks = {
  nullptr,
  { sNativeProperties.Upcast(), nullptr, &sNativePropertiesInited },
  prototypes::id::MediaMetadata,
  constructors::id::MediaMetadata,
  &sXrayExpandoObjectClass
};

static bool
_constructor(JSContext* cx_, unsigned argc, JS::Value* vp)
{
  BindingCallContext cx(cx_, "MediaMetadata constructor");
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "MediaMetadata", "constructor", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
  JS::Rooted<JSObject*> obj(cx, &args.callee());
  if (!args.isConstructing()) {
    return ThrowConstructorWithoutNew(cx, "MediaMetadata");
  }

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

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

  bool objIsXray = xpc::WrapperFactory::IsXrayWrapper(obj);
  binding_detail::FastMediaMetadataInit arg0;
  if (!arg0.Init(cx, (args.hasDefined(0)) ? args[0] : JS::NullHandleValue, "Argument 1", false)) {
    return false;
  }
  Maybe<JSAutoRealm> ar;
  if (objIsXray) {
    // Since our object is an Xray, we can just CheckedUnwrapStatic:
    // we know Xrays have no dynamic unwrap behavior.
    obj = js::CheckedUnwrapStatic(obj);
    if (!obj) {
      return false;
    }
    ar.emplace(cx, obj);
    if (!JS_WrapObject(cx, &desiredProto)) {
      return false;
    }
  }
  FastErrorResult rv;
  auto result(StrongOrRawPtr<mozilla::dom::MediaMetadata>(mozilla::dom::MediaMetadata::Constructor(global, Constify(arg0), rv)));
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "MediaMetadata constructor"))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  static_assert(!std::is_pointer_v<decltype(result)>,
                "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 DOMInterfaceInfo sInterfaceObjectInfo = {
  { _constructor, &sNativePropertyHooks },
  JS::GetRealmFunctionPrototypeHandle,
  PrototypeTraits<prototypes::id::MediaMetadata>::Depth,
  prototypes::id::MediaMetadata,
  true,
  0,
  "MediaMetadata",
};

static const DOMIfaceAndProtoJSClass sPrototypeClass = {
  {
    "MediaMetadataPrototype",
    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,
  prototypes::id::MediaMetadata,
  PrototypeTraits<prototypes::id::MediaMetadata>::Depth,
  &sNativePropertyHooks,
  JS::GetRealmObjectPrototype
};

static JS::Handle<JSObject*>
GetProtoObjectHandle(JSContext* aCx);

static const JSClassOps sClassOps = {
  nullptr,               /* addProperty */
  nullptr,               /* delProperty */
  nullptr,               /* enumerate */
  nullptr, /* newEnumerate */
  nullptr, /* resolve */
  nullptr, /* mayResolve */
  _finalize, /* finalize */
  nullptr, /* call */
  nullptr,               /* construct */
  nullptr, /* trace */
};

static const DOMJSClass sClass = {
  { "MediaMetadata",
    JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(2) | JSCLASS_PRESERVES_WRAPPER,
    &sClassOps,
    JS_NULL_CLASS_SPEC,
    &NativeTypeHelpers<mozilla::dom::MediaMetadata>::sClassExtension,
    JS_NULL_OBJECT_OPS
  },
  { prototypes::id::MediaMetadata, 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 },
  std::is_base_of_v<nsISupports, mozilla::dom::MediaMetadata>,
  &sNativePropertyHooks,
  FindAssociatedGlobalForNative<mozilla::dom::MediaMetadata>::Get,
  GetProtoObjectHandle,
  GetCCParticipant<mozilla::dom::MediaMetadata>::Get(),
  nullptr,
  NativeTypeHelpers<mozilla::dom::MediaMetadata>::GetWrapperCache
};
static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
              "Must have the right minimal number of reserved slots.");
static_assert(2 >= 2,
              "Must have enough reserved slots.");

bool
Wrap(JSContext* aCx, mozilla::dom::MediaMetadata* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
  static_assert(!std::is_base_of_v<NonRefcountedDOMObject, mozilla::dom::MediaMetadata>,
                "Shouldn't have wrappercached things that are not refcounted.");
  static_assert(std::is_same_v<decltype(aObject), mozilla::dom::MediaMetadata*>);
  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");

  // If the wrapper cache contains a dead reflector then finalize that
  // now, ensuring that the finalizer for the old reflector always
  // runs before the new reflector is created and attached. This
  // avoids the awkward situation where there are multiple reflector
  // objects that contain pointers to the same native.

  if (JSObject* oldReflector = aCache->GetWrapperMaybeDead()) {
    _finalize(nullptr /* unused */, oldReflector);
    MOZ_ASSERT(!aCache->GetWrapperMaybeDead());
  }

  JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
  if (!global) {
    return false;
  }
  MOZ_ASSERT(JS_IsGlobalObject(global));
  JS::AssertObjectIsNotGray(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::GetCompartment(proto)) {
      if (!JS_WrapObject(aCx, &proto)) {
        return false;
      }
    }
  } else {
    proto = canonicalProto;
  }

  BindingJSObjectCreator<mozilla::dom::MediaMetadata> 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;
}

void
ClearCachedArtworkValue(mozilla::dom::MediaMetadata* aObject)
{
  JSObject* obj;
  obj = aObject->GetWrapper();
  if (!obj) {
    return;
  }
  JS::SetReservedSlot(obj, (DOM_INSTANCE_RESERVED_SLOTS + 0), JS::UndefinedValue());
  ClearXrayExpandoSlots(RootingCx(), obj, (DOM_EXPANDO_RESERVED_SLOTS + 0));
}

void
CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, DefineInterfaceProperty aDefineOnGlobal)
{
  JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::MediaMetadata);
  JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::MediaMetadata);

  JS::Handle<JSObject*> parentProto(JS::GetRealmObjectPrototypeHandle(aCx));
  if (!parentProto) {
    return;
  }

  JS::Handle<JSObject*> constructorProto(JS::GetRealmFunctionPrototypeHandle(aCx));
  if (!constructorProto) {
    return;
  }

  dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
                              &sPrototypeClass, protoCache,
                              constructorProto, &sInterfaceObjectInfo, 0, false, Span<const LegacyFactoryFunction, 0>{},
                              interfaceCache,
                              sNativeProperties.Upcast(),
                              nullptr,
                              "MediaMetadata",
                              aDefineOnGlobal != DefineInterfaceProperty::No,
                              nullptr,
                              false,
                              nullptr);
}

static JS::Handle<JSObject*>
GetProtoObjectHandle(JSContext* aCx)
{
  /* Get the interface prototype object for this class.  This will create the
     object as needed. */
  return GetPerInterfaceObjectHandle(aCx, prototypes::id::MediaMetadata,
                                     &CreateInterfaceObjects,
                                     DefineInterfaceProperty::CheckExposure);

}

JS::Handle<JSObject*>
GetConstructorObjectHandle(JSContext* aCx)
{
  /* Get the interface object for this class.  This will create the object as
     needed. */

  return GetPerInterfaceObjectHandle(aCx, constructors::id::MediaMetadata,
                                     &CreateInterfaceObjects,
                                     DefineInterfaceProperty::CheckExposure);
}

} // namespace MediaMetadata_Binding



namespace MediaSession_Binding {

MOZ_CAN_RUN_SCRIPT static bool
get_metadata(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "MediaSession", "metadata", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::MediaSession*>(void_self);
  auto result(StrongOrRawPtr<mozilla::dom::MediaMetadata>(MOZ_KnownLive(self)->GetMetadata()));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!result) {
    args.rval().setNull();
    return true;
  }
  if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
    MOZ_ASSERT(JS_IsExceptionPending(cx));
    return false;
  }
  return true;
}

MOZ_CAN_RUN_SCRIPT static bool
set_metadata(JSContext* cx_, JS::Handle<JSObject*> obj, void* void_self, JSJitSetterCallArgs args)
{
  BindingCallContext cx(cx_, "MediaSession.metadata setter");
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "MediaSession", "metadata", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_SETTER) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::MediaSession*>(void_self);
  mozilla::dom::MediaMetadata* arg0;
  if (args[0].isObject()) {
    {
      // Our JSContext should be in the right global to do unwrapping in.
      nsresult rv = UnwrapObject<prototypes::id::MediaMetadata, mozilla::dom::MediaMetadata>(args[0], arg0, cx);
      if (NS_FAILED(rv)) {
        cx.ThrowErrorMessage<MSG_DOES_NOT_IMPLEMENT_INTERFACE>("Value being assigned", "MediaMetadata");
        return false;
      }
    }
  } else if (args[0].isNullOrUndefined()) {
    arg0 = nullptr;
  } else {
    cx.ThrowErrorMessage<MSG_NOT_OBJECT>("Value being assigned");
    return false;
  }
  // NOTE: This assert does NOT call the function.
  static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->SetMetadata(MOZ_KnownLive(Constify(arg0))))>, "Should be returning void here");
  MOZ_KnownLive(self)->SetMetadata(MOZ_KnownLive(Constify(arg0)));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  return true;
}

static const JSJitInfo metadata_getterinfo = {
  { get_metadata },
  { prototypes::id::MediaSession },
  { PrototypeTraits<prototypes::id::MediaSession>::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 const JSJitInfo metadata_setterinfo = {
  { (JSJitGetterOp)set_metadata },
  { prototypes::id::MediaSession },
  { PrototypeTraits<prototypes::id::MediaSession>::Depth },
  JSJitInfo::Setter,
  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. */
};

MOZ_CAN_RUN_SCRIPT static bool
get_playbackState(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "MediaSession", "playbackState", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::MediaSession*>(void_self);
  MediaSessionPlaybackState result(MOZ_KnownLive(self)->PlaybackState());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!ToJSValue(cx, result, args.rval())) {
    return false;
  }
  return true;
}

MOZ_CAN_RUN_SCRIPT static bool
set_playbackState(JSContext* cx_, JS::Handle<JSObject*> obj, void* void_self, JSJitSetterCallArgs args)
{
  BindingCallContext cx(cx_, "MediaSession.playbackState setter");
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "MediaSession", "playbackState", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_SETTER) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::MediaSession*>(void_self);
  MediaSessionPlaybackState arg0;
  {
    int index;
    if (!binding_detail::FindEnumStringIndex<false>(cx, args[0],
                                                                       binding_detail::EnumStrings<MediaSessionPlaybackState>::Values,
                                                                       "MediaSessionPlaybackState", "value being assigned",
                                                                       &index)) {
      return false;
    }
    if (index < 0) {
      return true;
    }
    arg0 = static_cast<MediaSessionPlaybackState>(index);
  }
  // NOTE: This assert does NOT call the function.
  static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->SetPlaybackState(arg0))>, "Should be returning void here");
  MOZ_KnownLive(self)->SetPlaybackState(arg0);
  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  return true;
}

static const JSJitInfo playbackState_getterinfo = {
  { get_playbackState },
  { prototypes::id::MediaSession },
  { PrototypeTraits<prototypes::id::MediaSession>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_STRING,  /* 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 const JSJitInfo playbackState_setterinfo = {
  { (JSJitGetterOp)set_playbackState },
  { prototypes::id::MediaSession },
  { PrototypeTraits<prototypes::id::MediaSession>::Depth },
  JSJitInfo::Setter,
  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. */
};

MOZ_CAN_RUN_SCRIPT static bool
setActionHandler(JSContext* cx_, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
  BindingCallContext cx(cx_, "MediaSession.setActionHandler");
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "MediaSession", "setActionHandler", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::MediaSession*>(void_self);
  if (!args.requireAtLeast(cx, "MediaSession.setActionHandler", 2)) {
    return false;
  }
  MediaSessionAction arg0;
  {
    int index;
    if (!binding_detail::FindEnumStringIndex<true>(cx, args[0],
                                                                       binding_detail::EnumStrings<MediaSessionAction>::Values,
                                                                       "MediaSessionAction", "argument 1",
                                                                       &index)) {
      return false;
    }
    MOZ_ASSERT(index >= 0);
    arg0 = static_cast<MediaSessionAction>(index);
  }
  RootedCallback<RefPtr<binding_detail::FastMediaSessionActionHandler>> arg1(cx);
  if (args[1].isObject()) {
    if (JS::IsCallable(&args[1].toObject())) {
    { // scope for tempRoot and tempGlobalRoot if needed
      arg1 = new binding_detail::FastMediaSessionActionHandler(&args[1].toObject(), JS::CurrentGlobalOrNull(cx));
    }
    } else {
      cx.ThrowErrorMessage<MSG_NOT_CALLABLE>("Argument 2");
      return false;
    }
  } else if (args[1].isNullOrUndefined()) {
    arg1 = nullptr;
  } else {
    cx.ThrowErrorMessage<MSG_NOT_OBJECT>("Argument 2");
    return false;
  }
  // NOTE: This assert does NOT call the function.
  static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->SetActionHandler(arg0, MOZ_KnownLive(Constify(arg1))))>, "Should be returning void here");
  MOZ_KnownLive(self)->SetActionHandler(arg0, MOZ_KnownLive(Constify(arg1)));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setUndefined();
  return true;
}

static const JSJitInfo setActionHandler_methodinfo = {
  { (JSJitGetterOp)setActionHandler },
  { prototypes::id::MediaSession },
  { PrototypeTraits<prototypes::id::MediaSession>::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. */
};

MOZ_CAN_RUN_SCRIPT static bool
setPositionState(JSContext* cx_, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
  BindingCallContext cx(cx_, "MediaSession.setPositionState");
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "MediaSession", "setPositionState", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::MediaSession*>(void_self);
  binding_detail::FastMediaPositionState arg0;
  if (!arg0.Init(cx, (args.hasDefined(0)) ? args[0] : JS::NullHandleValue, "Argument 1", false)) {
    return false;
  }
  FastErrorResult rv;
  // NOTE: This assert does NOT call the function.
  static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->SetPositionState(Constify(arg0), rv))>, "Should be returning void here");
  MOZ_KnownLive(self)->SetPositionState(Constify(arg0), rv);
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "MediaSession.setPositionState"))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setUndefined();
  return true;
}

static const JSJitInfo setPositionState_methodinfo = {
  { (JSJitGetterOp)setPositionState },
  { prototypes::id::MediaSession },
  { PrototypeTraits<prototypes::id::MediaSession>::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. */
};

MOZ_CAN_RUN_SCRIPT static bool
notifyHandler(JSContext* cx_, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
  BindingCallContext cx(cx_, "MediaSession.notifyHandler");
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "MediaSession", "notifyHandler", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::MediaSession*>(void_self);
  if (!args.requireAtLeast(cx, "MediaSession.notifyHandler", 1)) {
    return false;
  }
  binding_detail::FastMediaSessionActionDetails arg0;
  if (!arg0.Init(cx, args[0], "Argument 1", false)) {
    return false;
  }
  // NOTE: This assert does NOT call the function.
  static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->NotifyHandler(Constify(arg0)))>, "Should be returning void here");
  MOZ_KnownLive(self)->NotifyHandler(Constify(arg0));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setUndefined();
  return true;
}

static const JSJitInfo notifyHandler_methodinfo = {
  { (JSJitGetterOp)notifyHandler },
  { prototypes::id::MediaSession },
  { PrototypeTraits<prototypes::id::MediaSession>::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 void
_finalize(JS::GCContext* gcx, JSObject* obj)
{
  mozilla::dom::MediaSession* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::MediaSession>(obj);
  if (self) {
    JS::SetReservedSlot(obj, DOM_OBJECT_SLOT, JS::UndefinedValue());
    ClearWrapper(self, self, obj);
    if (size_t mallocBytes = BindingJSObjectMallocBytes(self)) {
      JS::RemoveAssociatedMemory(obj, mallocBytes,
                                 JS::MemoryUse::DOMBinding);
    }
    AddForDeferredFinalization<mozilla::dom::MediaSession>(self);
  }
}

MOZ_GLOBINIT static const JSFunctionSpec sMethods_specs[] = {
  JS_FNSPEC("setActionHandler", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&setActionHandler_methodinfo), 2, JSPROP_ENUMERATE, nullptr),
  JS_FNSPEC("setPositionState", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&setPositionState_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
  JS_FS_END
};


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

MOZ_GLOBINIT static const JSFunctionSpec sChromeMethods_specs[] = {
  JS_FNSPEC("notifyHandler", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&notifyHandler_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
  JS_FS_END
};


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

MOZ_GLOBINIT static const JSPropertySpec sAttributes_specs[] = {
  JSPropertySpec::nativeAccessors("metadata", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &metadata_getterinfo, GenericSetter<NormalThisPolicy>, &metadata_setterinfo),
  JSPropertySpec::nativeAccessors("playbackState", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &playbackState_getterinfo, GenericSetter<NormalThisPolicy>, &playbackState_setterinfo),
  JS_PS_END
};


static const Prefable<const JSPropertySpec> sAttributes[] = {
  { nullptr, &sAttributes_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)");


static uint16_t sNativeProperties_sortedPropertyIndices[4];
static PropertyInfo sNativeProperties_propertyInfos[4];

static const NativePropertiesN<2> sNativeProperties = {
  false, 0,
  false, 0,
  true,  0 /* sMethods */,
  true,  1 /* sAttributes */,
  false, 0,
  false, 0,
  false, 0,
  -1,
  4,
  sNativeProperties_sortedPropertyIndices,
  {
    { sMethods, &sNativeProperties_propertyInfos[0] },
    { sAttributes, &sNativeProperties_propertyInfos[2] }
  }
};
static_assert(4 < 1ull << (CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount)),
    "We have a property info count that is oversized");

static uint16_t sChromeOnlyNativeProperties_sortedPropertyIndices[1];
static PropertyInfo sChromeOnlyNativeProperties_propertyInfos[1];

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

bool sNativePropertiesInited = false;
const NativePropertyHooks sNativePropertyHooks = {
  nullptr,
  { sNativeProperties.Upcast(), sChromeOnlyNativeProperties.Upcast(), &sNativePropertiesInited },
  prototypes::id::MediaSession,
  constructors::id::MediaSession,
  &DefaultXrayExpandoObjectClass
};

static const DOMInterfaceInfo sInterfaceObjectInfo = {
  { ThrowingConstructor, &sNativePropertyHooks },
  JS::GetRealmFunctionPrototypeHandle,
  PrototypeTraits<prototypes::id::MediaSession>::Depth,
  prototypes::id::MediaSession,
  true,
  0,
  "MediaSession",
};

static const DOMIfaceAndProtoJSClass sPrototypeClass = {
  {
    "MediaSessionPrototype",
    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,
  prototypes::id::MediaSession,
  PrototypeTraits<prototypes::id::MediaSession>::Depth,
  &sNativePropertyHooks,
  JS::GetRealmObjectPrototype
};

static JS::Handle<JSObject*>
GetProtoObjectHandle(JSContext* aCx);

static const JSClassOps sClassOps = {
  nullptr,               /* addProperty */
  nullptr,               /* delProperty */
  nullptr,               /* enumerate */
  nullptr, /* newEnumerate */
  nullptr, /* resolve */
  nullptr, /* mayResolve */
  _finalize, /* finalize */
  nullptr, /* call */
  nullptr,               /* construct */
  nullptr, /* trace */
};

static const DOMJSClass sClass = {
  { "MediaSession",
    JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1) | JSCLASS_PRESERVES_WRAPPER,
    &sClassOps,
    JS_NULL_CLASS_SPEC,
    &NativeTypeHelpers<mozilla::dom::MediaSession>::sClassExtension,
    JS_NULL_OBJECT_OPS
  },
  { prototypes::id::MediaSession, 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 },
  std::is_base_of_v<nsISupports, mozilla::dom::MediaSession>,
  &sNativePropertyHooks,
  FindAssociatedGlobalForNative<mozilla::dom::MediaSession>::Get,
  GetProtoObjectHandle,
  GetCCParticipant<mozilla::dom::MediaSession>::Get(),
  nullptr,
  NativeTypeHelpers<mozilla::dom::MediaSession>::GetWrapperCache
};
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.");

bool
Wrap(JSContext* aCx, mozilla::dom::MediaSession* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
  static_assert(!std::is_base_of_v<NonRefcountedDOMObject, mozilla::dom::MediaSession>,
                "Shouldn't have wrappercached things that are not refcounted.");
  static_assert(std::is_same_v<decltype(aObject), mozilla::dom::MediaSession*>);
  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");

  // If the wrapper cache contains a dead reflector then finalize that
  // now, ensuring that the finalizer for the old reflector always
  // runs before the new reflector is created and attached. This
  // avoids the awkward situation where there are multiple reflector
  // objects that contain pointers to the same native.

  if (JSObject* oldReflector = aCache->GetWrapperMaybeDead()) {
    _finalize(nullptr /* unused */, oldReflector);
    MOZ_ASSERT(!aCache->GetWrapperMaybeDead());
  }

  JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
  if (!global) {
    return false;
  }
  MOZ_ASSERT(JS_IsGlobalObject(global));
  JS::AssertObjectIsNotGray(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::GetCompartment(proto)) {
      if (!JS_WrapObject(aCx, &proto)) {
        return false;
      }
    }
  } else {
    proto = canonicalProto;
  }

  BindingJSObjectCreator<mozilla::dom::MediaSession> 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;
}

void
CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, DefineInterfaceProperty aDefineOnGlobal)
{
  JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::MediaSession);
  JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::MediaSession);

  JS::Handle<JSObject*> parentProto(JS::GetRealmObjectPrototypeHandle(aCx));
  if (!parentProto) {
    return;
  }

  JS::Handle<JSObject*> constructorProto(JS::GetRealmFunctionPrototypeHandle(aCx));
  if (!constructorProto) {
    return;
  }

  dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
                              &sPrototypeClass, protoCache,
                              constructorProto, &sInterfaceObjectInfo, 0, false, Span<const LegacyFactoryFunction, 0>{},
                              interfaceCache,
                              sNativeProperties.Upcast(),
                              sChromeOnlyNativeProperties.Upcast(),
                              "MediaSession",
                              aDefineOnGlobal != DefineInterfaceProperty::No,
                              nullptr,
                              false,
                              nullptr);
}

static JS::Handle<JSObject*>
GetProtoObjectHandle(JSContext* aCx)
{
  /* Get the interface prototype object for this class.  This will create the
     object as needed. */
  return GetPerInterfaceObjectHandle(aCx, prototypes::id::MediaSession,
                                     &CreateInterfaceObjects,
                                     DefineInterfaceProperty::CheckExposure);

}

JS::Handle<JSObject*>
GetConstructorObjectHandle(JSContext* aCx)
{
  /* Get the interface object for this class.  This will create the object as
     needed. */

  return GetPerInterfaceObjectHandle(aCx, constructors::id::MediaSession,
                                     &CreateInterfaceObjects,
                                     DefineInterfaceProperty::CheckExposure);
}

} // namespace MediaSession_Binding



} // namespace dom


} // namespace mozilla
