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

#include <type_traits>
#include "AtomList.h"
#include "EventHandlerBinding.h"
#include "EventTargetBinding.h"
#include "FetchObserverBinding.h"
#include "MainThreadUtils.h"
#include "WrapperFactory.h"
#include "js/CallAndConstruct.h"
#include "js/Exception.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/OwningNonNull.h"
#include "mozilla/ProfilerLabels.h"
#include "mozilla/StaticPrefs_dom.h"
#include "mozilla/dom/BindingCallContext.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/DOMJSClass.h"
#include "mozilla/dom/FetchObserver.h"
#include "mozilla/dom/NonRefcountedDOMObject.h"
#include "mozilla/dom/Nullable.h"
#include "mozilla/dom/XrayExpandoClass.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<FetchState>::Values[5];
} // namespace binding_detail

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


namespace FetchObserver_Binding {

static_assert(IsRefcounted<NativeType>::value == IsRefcounted<EventTarget_Binding::NativeType>::value,
              "Can't inherit from an interface with a different ownership model.");

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

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

static const JSJitInfo state_getterinfo = {
  { get_state },
  { prototypes::id::FetchObserver },
  { PrototypeTraits<prototypes::id::FetchObserver>::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. */
};

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

  auto* self = static_cast<mozilla::dom::FetchObserver*>(void_self);
  RefPtr<EventHandlerNonNull> result(MOZ_KnownLive(self)->GetOnstatechange());
  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;
  }
}

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

  auto* self = static_cast<mozilla::dom::FetchObserver*>(void_self);
  RootedCallback<RefPtr<binding_detail::FastEventHandlerNonNull>> arg0(cx);
  if (args[0].isObject()) {
    { // scope for tempRoot and tempGlobalRoot if needed
      arg0 = new binding_detail::FastEventHandlerNonNull(&args[0].toObject(), JS::CurrentGlobalOrNull(cx));
    }
  } else {
    arg0 = nullptr;
  }
  // NOTE: This assert does NOT call the function.
  static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->SetOnstatechange(MOZ_KnownLive(Constify(arg0))))>, "Should be returning void here");
  MOZ_KnownLive(self)->SetOnstatechange(MOZ_KnownLive(Constify(arg0)));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  return true;
}

static const JSJitInfo onstatechange_getterinfo = {
  { get_onstatechange },
  { prototypes::id::FetchObserver },
  { PrototypeTraits<prototypes::id::FetchObserver>::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 onstatechange_setterinfo = {
  { (JSJitGetterOp)set_onstatechange },
  { prototypes::id::FetchObserver },
  { PrototypeTraits<prototypes::id::FetchObserver>::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_onrequestprogress(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "FetchObserver", "onrequestprogress", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::FetchObserver*>(void_self);
  RefPtr<EventHandlerNonNull> result(MOZ_KnownLive(self)->GetOnrequestprogress());
  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;
  }
}

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

  auto* self = static_cast<mozilla::dom::FetchObserver*>(void_self);
  RootedCallback<RefPtr<binding_detail::FastEventHandlerNonNull>> arg0(cx);
  if (args[0].isObject()) {
    { // scope for tempRoot and tempGlobalRoot if needed
      arg0 = new binding_detail::FastEventHandlerNonNull(&args[0].toObject(), JS::CurrentGlobalOrNull(cx));
    }
  } else {
    arg0 = nullptr;
  }
  // NOTE: This assert does NOT call the function.
  static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->SetOnrequestprogress(MOZ_KnownLive(Constify(arg0))))>, "Should be returning void here");
  MOZ_KnownLive(self)->SetOnrequestprogress(MOZ_KnownLive(Constify(arg0)));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  return true;
}

static const JSJitInfo onrequestprogress_getterinfo = {
  { get_onrequestprogress },
  { prototypes::id::FetchObserver },
  { PrototypeTraits<prototypes::id::FetchObserver>::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 onrequestprogress_setterinfo = {
  { (JSJitGetterOp)set_onrequestprogress },
  { prototypes::id::FetchObserver },
  { PrototypeTraits<prototypes::id::FetchObserver>::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_onresponseprogress(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_DYNAMIC_FAST(
    "FetchObserver", "onresponseprogress", DOM, cx,
    uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
    uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));

  auto* self = static_cast<mozilla::dom::FetchObserver*>(void_self);
  RefPtr<EventHandlerNonNull> result(MOZ_KnownLive(self)->GetOnresponseprogress());
  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;
  }
}

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

  auto* self = static_cast<mozilla::dom::FetchObserver*>(void_self);
  RootedCallback<RefPtr<binding_detail::FastEventHandlerNonNull>> arg0(cx);
  if (args[0].isObject()) {
    { // scope for tempRoot and tempGlobalRoot if needed
      arg0 = new binding_detail::FastEventHandlerNonNull(&args[0].toObject(), JS::CurrentGlobalOrNull(cx));
    }
  } else {
    arg0 = nullptr;
  }
  // NOTE: This assert does NOT call the function.
  static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->SetOnresponseprogress(MOZ_KnownLive(Constify(arg0))))>, "Should be returning void here");
  MOZ_KnownLive(self)->SetOnresponseprogress(MOZ_KnownLive(Constify(arg0)));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  return true;
}

static const JSJitInfo onresponseprogress_getterinfo = {
  { get_onresponseprogress },
  { prototypes::id::FetchObserver },
  { PrototypeTraits<prototypes::id::FetchObserver>::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 onresponseprogress_setterinfo = {
  { (JSJitGetterOp)set_onresponseprogress },
  { prototypes::id::FetchObserver },
  { PrototypeTraits<prototypes::id::FetchObserver>::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::FetchObserver* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::FetchObserver>(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::FetchObserver>(self);
  }
}

MOZ_GLOBINIT static const JSPropertySpec sAttributes_specs[] = {
  JSPropertySpec::nativeAccessors("state", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &state_getterinfo, nullptr, nullptr),
  JSPropertySpec::nativeAccessors("onstatechange", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &onstatechange_getterinfo, GenericSetter<NormalThisPolicy>, &onstatechange_setterinfo),
  JSPropertySpec::nativeAccessors("onrequestprogress", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &onrequestprogress_getterinfo, GenericSetter<NormalThisPolicy>, &onrequestprogress_setterinfo),
  JSPropertySpec::nativeAccessors("onresponseprogress", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &onresponseprogress_getterinfo, GenericSetter<NormalThisPolicy>, &onresponseprogress_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");

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

static const DOMInterfaceInfo sInterfaceObjectInfo = {
  { ThrowingConstructor, &sNativePropertyHooks },
  EventTarget_Binding::GetConstructorObjectHandle,
  PrototypeTraits<prototypes::id::FetchObserver>::Depth,
  prototypes::id::FetchObserver,
  true,
  0,
  "FetchObserver",
};

static const DOMIfaceAndProtoJSClass sPrototypeClass = {
  {
    "FetchObserverPrototype",
    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::FetchObserver,
  PrototypeTraits<prototypes::id::FetchObserver>::Depth,
  &sNativePropertyHooks,
  EventTarget_Binding::GetProtoObject
};

bool
ConstructorEnabled(JSContext* aCx, JS::Handle<JSObject*> aObj)
{
  return StaticPrefs::dom_fetchObserver_enabled();
}

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 = {
  { "FetchObserver",
    JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1) | JSCLASS_PRESERVES_WRAPPER,
    &sClassOps,
    JS_NULL_CLASS_SPEC,
    &NativeTypeHelpers<mozilla::dom::FetchObserver>::sClassExtension,
    JS_NULL_OBJECT_OPS
  },
  { prototypes::id::EventTarget, prototypes::id::FetchObserver, 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::FetchObserver>,
  &sNativePropertyHooks,
  FindAssociatedGlobalForNative<mozilla::dom::FetchObserver>::Get,
  GetProtoObjectHandle,
  GetCCParticipant<mozilla::dom::FetchObserver>::Get(),
  nullptr,
  NativeTypeHelpers<mozilla::dom::FetchObserver>::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::FetchObserver* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
  static_assert(!std::is_base_of_v<NonRefcountedDOMObject, mozilla::dom::FetchObserver>,
                "Shouldn't have wrappercached things that are not refcounted.");
  static_assert(std::is_same_v<decltype(aObject), mozilla::dom::FetchObserver*>);
  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");

  // 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::FetchObserver> 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::FetchObserver);
  JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::FetchObserver);

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

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

  dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
                              &sPrototypeClass, protoCache,
                              constructorProto, &sInterfaceObjectInfo, 0, false, Span<const LegacyFactoryFunction, 0>{},
                              interfaceCache,
                              sNativeProperties.Upcast(),
                              nullptr,
                              "FetchObserver",
                              ShouldExpose<FetchObserver_Binding::ConstructorEnabled>(aCx, aGlobal, aDefineOnGlobal),
                              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::FetchObserver,
                                     &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::FetchObserver,
                                     &CreateInterfaceObjects,
                                     DefineInterfaceProperty::CheckExposure);
}

} // namespace FetchObserver_Binding



void
ObserverCallback::HandleEvent(BindingCallContext& cx, JS::Handle<JS::Value> aThisVal, FetchObserver& observer, 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 (!GetOrCreateDOMReflector(cx, observer, argv[0])) {
      MOZ_ASSERT(JS_IsExceptionPending(cx));
      aRv.Throw(NS_ERROR_UNEXPECTED);
      return;
    }
    break;
  } while (false);

  bool isCallable = JS::IsCallable(mCallback);
  JS::Rooted<JS::Value> callable(cx);
  if (isCallable) {
    callable = JS::ObjectValue(*mCallback);
  } else {
    ObserverCallbackAtoms* atomsCache = GetAtomCache<ObserverCallbackAtoms>(cx);
    if ((reinterpret_cast<jsid*>(atomsCache)->isVoid() &&
         !InitIds(cx, atomsCache)) ||
        !GetCallableProperty(cx, atomsCache->handleEvent_id, &callable)) {
      aRv.Throw(NS_ERROR_UNEXPECTED);
      return;
    }
  }
  JS::Rooted<JS::Value> thisValue(cx, isCallable ? aThisVal.get()
                                                 : JS::ObjectValue(*mCallback));
  if (!JS::Call(cx, thisValue, callable,
                JS::HandleValueArray::subarray(argv, 0, argc), &rval)) {
    aRv.NoteJSContextException(cx);
    return;
  }
}

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

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



} // namespace dom


} // namespace mozilla
