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

#include "EventHandlerBinding.h"

#include "EventTargetBinding.h"

#include "MessagePortBinding.h"

#include "WrapperFactory.h"

#include "mozilla/OwningNonNull.h"

#include "mozilla/dom/BindingUtils.h"

#include "mozilla/dom/DOMJSClass.h"

#include "mozilla/dom/MessagePort.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 MessagePort_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

postMessage(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MessagePort* self, const JSJitMethodCallArgs& args)

{

  AUTO_PROFILER_LABEL_FAST("MessagePort.postMessage", DOM, cx);

  if (MOZ_UNLIKELY(args.length() < 1)) {

    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "MessagePort.postMessage");

  }

  JS::Rooted<JS::Value> arg0(cx);

  arg0 = args[0];

  binding_detail::AutoSequence<JSObject*> arg1;

  SequenceRooter<JSObject*> arg1_holder(cx, &arg1);

  if (args.hasDefined(1)) {

    if (args[1].isObject()) {

      JS::ForOfIterator iter(cx);

      if (!iter.init(args[1], JS::ForOfIterator::AllowNonIterable)) {

        return false;

      }

      if (!iter.valueIsIterable()) {

        ThrowErrorMessage(cx, MSG_NOT_SEQUENCE, "Argument 2 of MessagePort.postMessage");

        return false;

      }

      binding_detail::AutoSequence<JSObject*> &arr = arg1;

      JS::Rooted<JS::Value> temp(cx);

      while (true) {

        bool done;

        if (!iter.next(&temp, &done)) {

          return false;

        }

        if (done) {

          break;

        }

        JSObject** slotPtr = arr.AppendElement(mozilla::fallible);

        if (!slotPtr) {

          JS_ReportOutOfMemory(cx);

          return false;

        }

        JSObject*& slot = *slotPtr;

        if (temp.isObject()) {

          slot = &temp.toObject();

        } else {

          ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Element of argument 2 of MessagePort.postMessage");

          return false;

        }

      }

    } else {

      ThrowErrorMessage(cx, MSG_NOT_SEQUENCE, "Argument 2 of MessagePort.postMessage");

      return false;

    }

  } else {

    /* Array is already empty; nothing to do */

  }

  FastErrorResult rv;

  self->PostMessage(cx, arg0, Constify(arg1), rv);

  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {

    return false;

  }

  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  args.rval().setUndefined();

  return true;

}

static const JSJitInfo postMessage_methodinfo = {

  { (JSJitGetterOp)postMessage },

  { prototypes::id::MessagePort },

  { PrototypeTraits<prototypes::id::MessagePort>::Depth },

  JSJitInfo::Method,

  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */

  JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */

  false,  /* isInfallible. False in setters. */

  false,  /* isMovable.  Not relevant for setters. */

  false, /* isEliminatable.  Not relevant for setters. */

  false, /* isAlwaysInSlot.  Only relevant for getters. */

  false, /* isLazilyCachedInSlot.  Only relevant for getters. */

  false,  /* isTypedMethod.  Only relevant for methods. */

  0   /* Reserved slot index, if we're stored in a slot, else 0. */

};

static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");

static_assert(0 < 1, "There is no slot for us");

MOZ_CAN_RUN_SCRIPT static bool

start(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MessagePort* self, const JSJitMethodCallArgs& args)

{

  AUTO_PROFILER_LABEL_FAST("MessagePort.start", DOM, cx);

  self->Start();

  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  args.rval().setUndefined();

  return true;

}

static const JSJitInfo start_methodinfo = {

  { (JSJitGetterOp)start },

  { prototypes::id::MessagePort },

  { PrototypeTraits<prototypes::id::MessagePort>::Depth },

  JSJitInfo::Method,

  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */

  JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */

  true,  /* isInfallible. False in setters. */

  false,  /* isMovable.  Not relevant for setters. */

  false, /* isEliminatable.  Not relevant for setters. */

  false, /* isAlwaysInSlot.  Only relevant for getters. */

  false, /* isLazilyCachedInSlot.  Only relevant for getters. */

  false,  /* isTypedMethod.  Only relevant for methods. */

  0   /* Reserved slot index, if we're stored in a slot, else 0. */

};

static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");

static_assert(0 < 1, "There is no slot for us");

MOZ_CAN_RUN_SCRIPT static bool

close(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MessagePort* self, const JSJitMethodCallArgs& args)

{

  AUTO_PROFILER_LABEL_FAST("MessagePort.close", DOM, cx);

  self->Close();

  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  args.rval().setUndefined();

  return true;

}

static const JSJitInfo close_methodinfo = {

  { (JSJitGetterOp)close },

  { prototypes::id::MessagePort },

  { PrototypeTraits<prototypes::id::MessagePort>::Depth },

  JSJitInfo::Method,

  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */

  JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */

  true,  /* isInfallible. False in setters. */

  false,  /* isMovable.  Not relevant for setters. */

  false, /* isEliminatable.  Not relevant for setters. */

  false, /* isAlwaysInSlot.  Only relevant for getters. */

  false, /* isLazilyCachedInSlot.  Only relevant for getters. */

  false,  /* isTypedMethod.  Only relevant for methods. */

  0   /* Reserved slot index, if we're stored in a slot, else 0. */

};

static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");

static_assert(0 < 1, "There is no slot for us");

MOZ_CAN_RUN_SCRIPT static bool

get_onmessage(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MessagePort* self, JSJitGetterCallArgs args)

{

  AUTO_PROFILER_LABEL_FAST("get MessagePort.onmessage", DOM, cx);

  RefPtr<EventHandlerNonNull> result(self->GetOnmessage());

  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_onmessage(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MessagePort* self, JSJitSetterCallArgs args)

{

  AUTO_PROFILER_LABEL_FAST("set MessagePort.onmessage", DOM, cx);

  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;

  }

  self->SetOnmessage(Constify(arg0));

  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  return true;

}

static const JSJitInfo onmessage_getterinfo = {

  { (JSJitGetterOp)get_onmessage },

  { prototypes::id::MessagePort },

  { PrototypeTraits<prototypes::id::MessagePort>::Depth },

  JSJitInfo::Getter,

  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */

  JSVAL_TYPE_UNKNOWN,  /* returnType.  Not relevant for setters. */

  false,  /* isInfallible. False in setters. */

  false,  /* isMovable.  Not relevant for setters. */

  false, /* isEliminatable.  Not relevant for setters. */

  false, /* isAlwaysInSlot.  Only relevant for getters. */

  false, /* isLazilyCachedInSlot.  Only relevant for getters. */

  false,  /* isTypedMethod.  Only relevant for methods. */

  0   /* Reserved slot index, if we're stored in a slot, else 0. */

};

static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");

static_assert(0 < 1, "There is no slot for us");

static const JSJitInfo onmessage_setterinfo = {

  { (JSJitGetterOp)set_onmessage },

  { prototypes::id::MessagePort },

  { PrototypeTraits<prototypes::id::MessagePort>::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_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");

static_assert(0 < 1, "There is no slot for us");

MOZ_CAN_RUN_SCRIPT static bool

get_onmessageerror(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MessagePort* self, JSJitGetterCallArgs args)

{

  AUTO_PROFILER_LABEL_FAST("get MessagePort.onmessageerror", DOM, cx);

  RefPtr<EventHandlerNonNull> result(self->GetOnmessageerror());

  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_onmessageerror(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MessagePort* self, JSJitSetterCallArgs args)

{

  AUTO_PROFILER_LABEL_FAST("set MessagePort.onmessageerror", DOM, cx);

  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;

  }

  self->SetOnmessageerror(Constify(arg0));

  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  return true;

}

static const JSJitInfo onmessageerror_getterinfo = {

  { (JSJitGetterOp)get_onmessageerror },

  { prototypes::id::MessagePort },

  { PrototypeTraits<prototypes::id::MessagePort>::Depth },

  JSJitInfo::Getter,

  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */

  JSVAL_TYPE_UNKNOWN,  /* returnType.  Not relevant for setters. */

  false,  /* isInfallible. False in setters. */

  false,  /* isMovable.  Not relevant for setters. */

  false, /* isEliminatable.  Not relevant for setters. */

  false, /* isAlwaysInSlot.  Only relevant for getters. */

  false, /* isLazilyCachedInSlot.  Only relevant for getters. */

  false,  /* isTypedMethod.  Only relevant for methods. */

  0   /* Reserved slot index, if we're stored in a slot, else 0. */

};

static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");

static_assert(0 < 1, "There is no slot for us");

static const JSJitInfo onmessageerror_setterinfo = {

  { (JSJitGetterOp)set_onmessageerror },

  { prototypes::id::MessagePort },

  { PrototypeTraits<prototypes::id::MessagePort>::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_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");

static_assert(0 < 1, "There is no slot for us");

static bool

_addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)

{

  mozilla::dom::MessagePort* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::MessagePort>(obj);

  // We don't want to preserve if we don't have a wrapper, and we

  // obviously can't preserve if we're not initialized.

  if (self && self->GetWrapperPreserveColor()) {

    PreserveWrapper(self);

  }

  return true;

}

static void

_finalize(js::FreeOp* fop, JSObject* obj)

{

  mozilla::dom::MessagePort* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::MessagePort>(obj);

  if (self) {

    ClearWrapper(self, self, obj);

    AddForDeferredFinalization<mozilla::dom::MessagePort>(self);

  }

}

static size_t

_objectMoved(JSObject* obj, JSObject* old)

{

  mozilla::dom::MessagePort* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::MessagePort>(obj);

  if (self) {

    UpdateWrapper(self, self, obj, old);

  }

  return 0;

}

// We deliberately use brace-elision to make Visual Studio produce better initalization code.

#if defined(__clang__)

#pragma clang diagnostic push

#pragma clang diagnostic ignored "-Wmissing-braces"

#endif

static const JSFunctionSpec sMethods_specs[] = {

  JS_FNSPEC("postMessage", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&postMessage_methodinfo), 1, JSPROP_ENUMERATE, nullptr),

  JS_FNSPEC("start", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&start_methodinfo), 0, JSPROP_ENUMERATE, nullptr),

  JS_FNSPEC("close", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&close_methodinfo), 0, JSPROP_ENUMERATE, nullptr),

  JS_FS_END

};

#if defined(__clang__)

#pragma clang diagnostic pop

#endif

static const Prefable<const JSFunctionSpec> sMethods[] = {

  { nullptr, &sMethods_specs[0] },

  { nullptr, nullptr }

};

static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,

    "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");

static_assert(3 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,

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

// We deliberately use brace-elision to make Visual Studio produce better initalization code.

#if defined(__clang__)

#pragma clang diagnostic push

#pragma clang diagnostic ignored "-Wmissing-braces"

#endif

static const JSPropertySpec sAttributes_specs[] = {

  { "onmessage", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &onmessage_getterinfo, GenericSetter<NormalThisPolicy>, &onmessage_setterinfo },

  { "onmessageerror", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &onmessageerror_getterinfo, GenericSetter<NormalThisPolicy>, &onmessageerror_setterinfo },

  { nullptr, 0, nullptr, nullptr, nullptr, nullptr }

};

#if defined(__clang__)

#pragma clang diagnostic pop

#endif

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[5];

static PropertyInfo sNativeProperties_propertyInfos[5];

static const NativePropertiesN<2> sNativeProperties = {

  false, 0,

  false, 0,

  true,  0 /* sMethods */,

  true,  1 /* sAttributes */,

  false, 0,

  false, 0,

  false, 0,

  -1,

  5,

  sNativeProperties_sortedPropertyIndices,

  {

    { sMethods, &sNativeProperties_propertyInfos[0] },

    { sAttributes, &sNativeProperties_propertyInfos[3] }

  }

};

static_assert(5 < 1ull << CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount),

    "We have a property info count that is oversized");

static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {

  {

    "Function",

    JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),

    &sBoringInterfaceObjectClassClassOps,

    JS_NULL_CLASS_SPEC,

    JS_NULL_CLASS_EXT,

    &sInterfaceObjectClassObjectOps

  },

  eInterface,

  true,

  prototypes::id::MessagePort,

  PrototypeTraits<prototypes::id::MessagePort>::Depth,

  sNativePropertyHooks,

  "function MessagePort() {\n    [native code]\n}",

  EventTarget_Binding::GetConstructorObject

};

static const DOMIfaceAndProtoJSClass sPrototypeClass = {

  {

    "MessagePortPrototype",

    JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),

    JS_NULL_CLASS_OPS,

    JS_NULL_CLASS_SPEC,

    JS_NULL_CLASS_EXT,

    JS_NULL_OBJECT_OPS

  },

  eInterfacePrototype,

  false,

  prototypes::id::MessagePort,

  PrototypeTraits<prototypes::id::MessagePort>::Depth,

  sNativePropertyHooks,

  "[object MessagePortPrototype]",

  EventTarget_Binding::GetProtoObject

};

static const js::ClassOps sClassOps = {

  _addProperty, /* addProperty */

  nullptr,               /* delProperty */

  nullptr,               /* enumerate */

  nullptr, /* newEnumerate */

  nullptr, /* resolve */

  nullptr, /* mayResolve */

  _finalize, /* finalize */

  nullptr, /* call */

  nullptr,               /* hasInstance */

  nullptr,               /* construct */

  nullptr, /* trace */

};

static const js::ClassExtension sClassExtension = {

  nullptr, /* weakmapKeyDelegateOp */

  _objectMoved /* objectMovedOp */

};

static const DOMJSClass sClass = {

  { "MessagePort",

    JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),

    &sClassOps,

    JS_NULL_CLASS_SPEC,

    &sClassExtension,

    JS_NULL_OBJECT_OPS

  },

  { prototypes::id::EventTarget, prototypes::id::MessagePort, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },

  IsBaseOf<nsISupports, mozilla::dom::MessagePort >::value,

  sNativePropertyHooks,

  FindAssociatedGlobalForNative<mozilla::dom::MessagePort>::Get,

  GetProtoObjectHandle,

  GetCCParticipant<mozilla::dom::MessagePort>::Get()

};

static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,

              "Must have the right minimal number of reserved slots.");

static_assert(1 >= 1,

              "Must have enough reserved slots.");

const JSClass*

GetJSClass()

{

  return sClass.ToJSClass();

}

bool

Wrap(JSContext* aCx, mozilla::dom::MessagePort* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)

{

  static_assert(!IsBaseOf<NonRefcountedDOMObject, mozilla::dom::MessagePort>::value,

                "Shouldn't have wrappercached things that are not refcounted.");

  MOZ_ASSERT(static_cast<mozilla::dom::MessagePort*>(aObject) ==

             reinterpret_cast<mozilla::dom::MessagePort*>(aObject),

             "Multiple inheritance for mozilla::dom::MessagePort is broken.");

  MOZ_ASSERT(static_cast<mozilla::dom::EventTarget*>(aObject) ==

             reinterpret_cast<mozilla::dom::EventTarget*>(aObject),

             "Multiple inheritance for mozilla::dom::EventTarget is broken.");

  MOZ_ASSERT(ToSupportsIsCorrect(aObject));

  MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));

  MOZ_ASSERT(!aCache->GetWrapper(),

             "You should probably not be using Wrap() directly; use "

             "GetOrCreateDOMReflector instead");

  MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),

             "nsISupports must be on our primary inheritance chain");

  JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));

  if (!global) {

    return false;

  }

  MOZ_ASSERT(JS_IsGlobalObject(global));

  MOZ_ASSERT(JS::ObjectIsNotGray(global));

  // That might have ended up wrapping us already, due to the wonders

  // of XBL.  Check for that, and bail out as needed.

  aReflector.set(aCache->GetWrapper());

  if (aReflector) {

#ifdef DEBUG

    AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);

#endif // DEBUG

    return true;

  }

  JSAutoRealm ar(aCx, global);

  JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);

  if (!canonicalProto) {

    return false;

  }

  JS::Rooted<JSObject*> proto(aCx);

  if (aGivenProto) {

    proto = aGivenProto;

    // Unfortunately, while aGivenProto was in the compartment of aCx

    // coming in, we changed compartments to that of "parent" so may need

    // to wrap the proto here.

    if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {

      if (!JS_WrapObject(aCx, &proto)) {

        return false;

      }

    }

  } else {

    proto = canonicalProto;

  }

  BindingJSObjectCreator<mozilla::dom::MessagePort> creator(aCx);

  creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);

  if (!aReflector) {

    return false;

  }

  aCache->SetWrapper(aReflector);

  creator.InitializationSucceeded();

  MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&

             aCache->GetWrapperPreserveColor() == aReflector);

  // If proto != canonicalProto, we have to preserve our wrapper;

  // otherwise we won't be able to properly recreate it later, since

  // we won't know what proto to use.  Note that we don't check

  // aGivenProto here, since it's entirely possible (and even

  // somewhat common) to have a non-null aGivenProto which is the

  // same as canonicalProto.

  if (proto != canonicalProto) {

    PreserveWrapper(aObject);

  }

  return true;

}

const NativePropertyHooks sNativePropertyHooks[] = { {

  nullptr,

  nullptr,

  nullptr,

  { sNativeProperties.Upcast(), nullptr },

  prototypes::id::MessagePort,

  constructors::id::MessagePort,

  EventTarget_Binding::sNativePropertyHooks,

  &DefaultXrayExpandoObjectClass

} };

void

CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)

{

  JS::Handle<JSObject*> parentProto(EventTarget_Binding::GetProtoObjectHandle(aCx));

  if (!parentProto) {

    return;

  }

  JS::Handle<JSObject*> constructorProto(EventTarget_Binding::GetConstructorObjectHandle(aCx));

  if (!constructorProto) {

    return;

  }

  static bool sIdsInited = false;

  if (!sIdsInited && NS_IsMainThread()) {

    if (!InitIds(aCx, sNativeProperties.Upcast())) {

      return;

    }

    sIdsInited = true;

  }

  JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::MessagePort);

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

  dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,

                              &sPrototypeClass.mBase, protoCache,

                              nullptr,

                              constructorProto, &sInterfaceObjectClass.mBase, 0, nullptr,

                              interfaceCache,

                              sNativeProperties.Upcast(),

                              nullptr,

                              "MessagePort", aDefineOnGlobal,

                              nullptr,

                              false);

}

JSObject*

GetConstructorObject(JSContext* aCx)

{

  return GetConstructorObjectHandle(aCx);

}

} // namespace MessagePort_Binding

} // namespace dom

} // namespace mozilla