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

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

#include "GridBinding.h"
#include "WrapperFactory.h"
#include "XrayWrapper.h"
#include "jsapi.h"
#include "mozilla/FloatingPoint.h"
#include "mozilla/OwningNonNull.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/DOMJSClass.h"
#include "mozilla/dom/DOMJSProxyHandler.h"
#include "mozilla/dom/Grid.h"
#include "mozilla/dom/GridArea.h"
#include "mozilla/dom/GridDimension.h"
#include "mozilla/dom/GridLine.h"
#include "mozilla/dom/GridLines.h"
#include "mozilla/dom/GridTrack.h"
#include "mozilla/dom/GridTracks.h"
#include "mozilla/dom/NonRefcountedDOMObject.h"
#include "mozilla/dom/Nullable.h"
#include "mozilla/dom/PrimitiveConversions.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 GridDeclarationValues {
extern const EnumEntry strings[3] = {
  {"explicit", 8},
  {"implicit", 8},
  { nullptr, 0 }
};
} // namespace GridDeclarationValues

bool
ToJSValue(JSContext* aCx, GridDeclaration aArgument, JS::MutableHandle<JS::Value> aValue)
{
  MOZ_ASSERT(uint32_t(aArgument) < ArrayLength(GridDeclarationValues::strings));
  JSString* resultStr =
    JS_NewStringCopyN(aCx, GridDeclarationValues::strings[uint32_t(aArgument)].value,
                      GridDeclarationValues::strings[uint32_t(aArgument)].length);
  if (!resultStr) {
    return false;
  }
  aValue.setString(resultStr);
  return true;
}


namespace GridTrackStateValues {
extern const EnumEntry strings[4] = {
  {"static", 6},
  {"repeat", 6},
  {"removed", 7},
  { nullptr, 0 }
};
} // namespace GridTrackStateValues

bool
ToJSValue(JSContext* aCx, GridTrackState aArgument, JS::MutableHandle<JS::Value> aValue)
{
  MOZ_ASSERT(uint32_t(aArgument) < ArrayLength(GridTrackStateValues::strings));
  JSString* resultStr =
    JS_NewStringCopyN(aCx, GridTrackStateValues::strings[uint32_t(aArgument)].value,
                      GridTrackStateValues::strings[uint32_t(aArgument)].length);
  if (!resultStr) {
    return false;
  }
  aValue.setString(resultStr);
  return true;
}


namespace Grid_Binding {

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

  auto result(StrongOrRawPtr<mozilla::dom::GridDimension>(self->Rows()));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
    MOZ_ASSERT(JS_IsExceptionPending(cx));
    return false;
  }
  return true;
}

static const JSJitInfo rows_getterinfo = {
  { (JSJitGetterOp)get_rows },
  { prototypes::id::Grid },
  { PrototypeTraits<prototypes::id::Grid>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* 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. */
  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 < 2, "There is no slot for us");

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

  auto result(StrongOrRawPtr<mozilla::dom::GridDimension>(self->Cols()));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
    MOZ_ASSERT(JS_IsExceptionPending(cx));
    return false;
  }
  return true;
}

static const JSJitInfo cols_getterinfo = {
  { (JSJitGetterOp)get_cols },
  { prototypes::id::Grid },
  { PrototypeTraits<prototypes::id::Grid>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* 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. */
  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 < 2, "There is no slot for us");

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

  // 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 ? (xpc::JSSLOT_EXPANDO_COUNT + 0) : (DOM_INSTANCE_RESERVED_SLOTS + 0);
  MOZ_ASSERT(JSCLASS_RESERVED_SLOTS(js::GetObjectClass(slotStorage)) > slotIndex);
  {
    // 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.
      if (MaybeWrapNonDOMObjectValue(cx, args.rval())) {
        return true;
      }
      return false;
    }
  }

  nsTArray<StrongPtrForMember<mozilla::dom::GridArea>::Type> result;
  self->GetAreas(result);
  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 {
            if (!GetOrCreateDOMReflector(cx, result[sequenceIdx0], &tmp)) {
              MOZ_ASSERT(JS_IsExceptionPending(cx));
              return false;
            }
            break;
          } while (false);
          if (!JS_DefineElement(cx, returnArray, sequenceIdx0, tmp,
                                JSPROP_ENUMERATE)) {
            return false;
          }
        }
      }
      args.rval().setObject(*returnArray);
      break;
    } while (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.
  if (MaybeWrapNonDOMObjectValue(cx, args.rval())) {
    return true;
  }
  return false;
}

static const JSJitInfo areas_getterinfo = {
  { (JSJitGetterOp)get_areas },
  { prototypes::id::Grid },
  { PrototypeTraits<prototypes::id::Grid>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasNone, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_OBJECT,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  true,  /* isMovable.  Not relevant for setters. */
  true, /* 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 bool
_addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
{
  mozilla::dom::Grid* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::Grid>(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::Grid* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::Grid>(obj);
  if (self) {
    ClearWrapper(self, self, obj);
    AddForDeferredFinalization<mozilla::dom::Grid>(self);
  }
}

static size_t
_objectMoved(JSObject* obj, JSObject* old)
{
  mozilla::dom::Grid* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::Grid>(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 JSPropertySpec sAttributes_specs[] = {
  { "rows", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &rows_getterinfo, nullptr, nullptr },
  { "cols", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &cols_getterinfo, nullptr, nullptr },
  { "areas", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &areas_getterinfo, nullptr, nullptr },
  { 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(3 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
    "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");


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

static const NativePropertiesN<1> sNativeProperties = {
  false, 0,
  false, 0,
  false, 0,
  true,  0 /* sAttributes */,
  false, 0,
  false, 0,
  false, 0,
  -1,
  3,
  sNativeProperties_sortedPropertyIndices,
  {
    { sAttributes, &sNativeProperties_propertyInfos[0] }
  }
};
static_assert(3 < 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::Grid,
  PrototypeTraits<prototypes::id::Grid>::Depth,
  sNativePropertyHooks,
  "function Grid() {\n    [native code]\n}",
  JS::GetRealmFunctionPrototype
};

static const DOMIfaceAndProtoJSClass sPrototypeClass = {
  {
    "GridPrototype",
    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::Grid,
  PrototypeTraits<prototypes::id::Grid>::Depth,
  sNativePropertyHooks,
  "[object GridPrototype]",
  JS::GetRealmObjectPrototype
};

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

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 = {
  { "Grid",
    JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(2),
    &sClassOps,
    JS_NULL_CLASS_SPEC,
    &sClassExtension,
    JS_NULL_OBJECT_OPS
  },
  { prototypes::id::Grid, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
  IsBaseOf<nsISupports, mozilla::dom::Grid >::value,
  sNativePropertyHooks,
  FindAssociatedGlobalForNative<mozilla::dom::Grid>::Get,
  GetProtoObjectHandle,
  GetCCParticipant<mozilla::dom::Grid>::Get()
};
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.");

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

bool
Wrap(JSContext* aCx, mozilla::dom::Grid* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
  static_assert(!IsBaseOf<NonRefcountedDOMObject, mozilla::dom::Grid>::value,
                "Shouldn't have wrappercached things that are not refcounted.");
  MOZ_ASSERT(static_cast<mozilla::dom::Grid*>(aObject) ==
             reinterpret_cast<mozilla::dom::Grid*>(aObject),
             "Multiple inheritance for mozilla::dom::Grid 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::Grid> 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;
}

// 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(static, sXrayExpandoObjectClass, 1);

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

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

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

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

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

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

} // namespace Grid_Binding



namespace GridArea_Binding {

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

  DOMString result;
  self->GetName(result);
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
    return false;
  }
  return true;
}

static const JSJitInfo name_getterinfo = {
  { (JSJitGetterOp)get_name },
  { prototypes::id::GridArea },
  { PrototypeTraits<prototypes::id::GridArea>::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_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_type(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::GridArea* self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_FAST("get GridArea.type", DOM, cx);

  GridDeclaration result(self->Type());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!ToJSValue(cx, result, args.rval())) {
    return false;
  }
  return true;
}

static const JSJitInfo type_getterinfo = {
  { (JSJitGetterOp)get_type },
  { prototypes::id::GridArea },
  { PrototypeTraits<prototypes::id::GridArea>::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_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_rowStart(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::GridArea* self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_FAST("get GridArea.rowStart", DOM, cx);

  uint32_t result(self->RowStart());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setNumber(result);
  return true;
}

static const JSJitInfo rowStart_getterinfo = {
  { (JSJitGetterOp)get_rowStart },
  { prototypes::id::GridArea },
  { PrototypeTraits<prototypes::id::GridArea>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_DOUBLE,  /* 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_rowEnd(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::GridArea* self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_FAST("get GridArea.rowEnd", DOM, cx);

  uint32_t result(self->RowEnd());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setNumber(result);
  return true;
}

static const JSJitInfo rowEnd_getterinfo = {
  { (JSJitGetterOp)get_rowEnd },
  { prototypes::id::GridArea },
  { PrototypeTraits<prototypes::id::GridArea>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_DOUBLE,  /* 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_columnStart(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::GridArea* self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_FAST("get GridArea.columnStart", DOM, cx);

  uint32_t result(self->ColumnStart());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setNumber(result);
  return true;
}

static const JSJitInfo columnStart_getterinfo = {
  { (JSJitGetterOp)get_columnStart },
  { prototypes::id::GridArea },
  { PrototypeTraits<prototypes::id::GridArea>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_DOUBLE,  /* 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_columnEnd(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::GridArea* self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_FAST("get GridArea.columnEnd", DOM, cx);

  uint32_t result(self->ColumnEnd());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setNumber(result);
  return true;
}

static const JSJitInfo columnEnd_getterinfo = {
  { (JSJitGetterOp)get_columnEnd },
  { prototypes::id::GridArea },
  { PrototypeTraits<prototypes::id::GridArea>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_DOUBLE,  /* 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");

static bool
_addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
{
  mozilla::dom::GridArea* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::GridArea>(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::GridArea* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::GridArea>(obj);
  if (self) {
    ClearWrapper(self, self, obj);
    AddForDeferredFinalization<mozilla::dom::GridArea>(self);
  }
}

static size_t
_objectMoved(JSObject* obj, JSObject* old)
{
  mozilla::dom::GridArea* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::GridArea>(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 JSPropertySpec sAttributes_specs[] = {
  { "name", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &name_getterinfo, nullptr, nullptr },
  { "type", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &type_getterinfo, nullptr, nullptr },
  { "rowStart", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &rowStart_getterinfo, nullptr, nullptr },
  { "rowEnd", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &rowEnd_getterinfo, nullptr, nullptr },
  { "columnStart", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &columnStart_getterinfo, nullptr, nullptr },
  { "columnEnd", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &columnEnd_getterinfo, nullptr, nullptr },
  { 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(6 <= 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[6];
static PropertyInfo sNativeProperties_propertyInfos[6];

static const NativePropertiesN<1> sNativeProperties = {
  false, 0,
  false, 0,
  false, 0,
  true,  0 /* sAttributes */,
  false, 0,
  false, 0,
  false, 0,
  -1,
  6,
  sNativeProperties_sortedPropertyIndices,
  {
    { sAttributes, &sNativeProperties_propertyInfos[0] }
  }
};
static_assert(6 < 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::GridArea,
  PrototypeTraits<prototypes::id::GridArea>::Depth,
  sNativePropertyHooks,
  "function GridArea() {\n    [native code]\n}",
  JS::GetRealmFunctionPrototype
};

static const DOMIfaceAndProtoJSClass sPrototypeClass = {
  {
    "GridAreaPrototype",
    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::GridArea,
  PrototypeTraits<prototypes::id::GridArea>::Depth,
  sNativePropertyHooks,
  "[object GridAreaPrototype]",
  JS::GetRealmObjectPrototype
};

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

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 = {
  { "GridArea",
    JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
    &sClassOps,
    JS_NULL_CLASS_SPEC,
    &sClassExtension,
    JS_NULL_OBJECT_OPS
  },
  { prototypes::id::GridArea, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
  IsBaseOf<nsISupports, mozilla::dom::GridArea >::value,
  sNativePropertyHooks,
  FindAssociatedGlobalForNative<mozilla::dom::GridArea>::Get,
  GetProtoObjectHandle,
  GetCCParticipant<mozilla::dom::GridArea>::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::GridArea* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
  static_assert(!IsBaseOf<NonRefcountedDOMObject, mozilla::dom::GridArea>::value,
                "Shouldn't have wrappercached things that are not refcounted.");
  MOZ_ASSERT(static_cast<mozilla::dom::GridArea*>(aObject) ==
             reinterpret_cast<mozilla::dom::GridArea*>(aObject),
             "Multiple inheritance for mozilla::dom::GridArea 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::GridArea> 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::GridArea,
  constructors::id::GridArea,
  nullptr,
  &DefaultXrayExpandoObjectClass
} };

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

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

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

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

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

} // namespace GridArea_Binding



namespace GridDimension_Binding {

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

  auto result(StrongOrRawPtr<mozilla::dom::GridLines>(self->Lines()));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
    MOZ_ASSERT(JS_IsExceptionPending(cx));
    return false;
  }
  return true;
}

static const JSJitInfo lines_getterinfo = {
  { (JSJitGetterOp)get_lines },
  { prototypes::id::GridDimension },
  { PrototypeTraits<prototypes::id::GridDimension>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* 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. */
  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_tracks(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::GridDimension* self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_FAST("get GridDimension.tracks", DOM, cx);

  auto result(StrongOrRawPtr<mozilla::dom::GridTracks>(self->Tracks()));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
    MOZ_ASSERT(JS_IsExceptionPending(cx));
    return false;
  }
  return true;
}

static const JSJitInfo tracks_getterinfo = {
  { (JSJitGetterOp)get_tracks },
  { prototypes::id::GridDimension },
  { PrototypeTraits<prototypes::id::GridDimension>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* 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. */
  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::GridDimension* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::GridDimension>(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::GridDimension* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::GridDimension>(obj);
  if (self) {
    ClearWrapper(self, self, obj);
    AddForDeferredFinalization<mozilla::dom::GridDimension>(self);
  }
}

static size_t
_objectMoved(JSObject* obj, JSObject* old)
{
  mozilla::dom::GridDimension* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::GridDimension>(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 JSPropertySpec sAttributes_specs[] = {
  { "lines", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &lines_getterinfo, nullptr, nullptr },
  { "tracks", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &tracks_getterinfo, nullptr, nullptr },
  { 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[2];
static PropertyInfo sNativeProperties_propertyInfos[2];

static const NativePropertiesN<1> sNativeProperties = {
  false, 0,
  false, 0,
  false, 0,
  true,  0 /* sAttributes */,
  false, 0,
  false, 0,
  false, 0,
  -1,
  2,
  sNativeProperties_sortedPropertyIndices,
  {
    { sAttributes, &sNativeProperties_propertyInfos[0] }
  }
};
static_assert(2 < 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::GridDimension,
  PrototypeTraits<prototypes::id::GridDimension>::Depth,
  sNativePropertyHooks,
  "function GridDimension() {\n    [native code]\n}",
  JS::GetRealmFunctionPrototype
};

static const DOMIfaceAndProtoJSClass sPrototypeClass = {
  {
    "GridDimensionPrototype",
    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::GridDimension,
  PrototypeTraits<prototypes::id::GridDimension>::Depth,
  sNativePropertyHooks,
  "[object GridDimensionPrototype]",
  JS::GetRealmObjectPrototype
};

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

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 = {
  { "GridDimension",
    JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
    &sClassOps,
    JS_NULL_CLASS_SPEC,
    &sClassExtension,
    JS_NULL_OBJECT_OPS
  },
  { prototypes::id::GridDimension, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
  IsBaseOf<nsISupports, mozilla::dom::GridDimension >::value,
  sNativePropertyHooks,
  FindAssociatedGlobalForNative<mozilla::dom::GridDimension>::Get,
  GetProtoObjectHandle,
  GetCCParticipant<mozilla::dom::GridDimension>::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::GridDimension* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
  static_assert(!IsBaseOf<NonRefcountedDOMObject, mozilla::dom::GridDimension>::value,
                "Shouldn't have wrappercached things that are not refcounted.");
  MOZ_ASSERT(static_cast<mozilla::dom::GridDimension*>(aObject) ==
             reinterpret_cast<mozilla::dom::GridDimension*>(aObject),
             "Multiple inheritance for mozilla::dom::GridDimension 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::GridDimension> 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::GridDimension,
  constructors::id::GridDimension,
  nullptr,
  &DefaultXrayExpandoObjectClass
} };

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

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

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

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

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

} // namespace GridDimension_Binding



namespace GridLine_Binding {

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

  // 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 ? (xpc::JSSLOT_EXPANDO_COUNT + 0) : (DOM_INSTANCE_RESERVED_SLOTS + 0);
  MOZ_ASSERT(JSCLASS_RESERVED_SLOTS(js::GetObjectClass(slotStorage)) > slotIndex);
  {
    // 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.
      if (MaybeWrapNonDOMObjectValue(cx, args.rval())) {
        return true;
      }
      return false;
    }
  }

  nsTArray<nsString> result;
  self->GetNames(result);
  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 {
            if (!xpc::NonVoidStringToJsval(cx, result[sequenceIdx0], &tmp)) {
              return false;
            }
            break;
          } while (false);
          if (!JS_DefineElement(cx, returnArray, sequenceIdx0, tmp,
                                JSPROP_ENUMERATE)) {
            return false;
          }
        }
      }
      args.rval().setObject(*returnArray);
      break;
    } while (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.
  if (MaybeWrapNonDOMObjectValue(cx, args.rval())) {
    return true;
  }
  return false;
}

static const JSJitInfo names_getterinfo = {
  { (JSJitGetterOp)get_names },
  { prototypes::id::GridLine },
  { PrototypeTraits<prototypes::id::GridLine>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasNone, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_OBJECT,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  true,  /* isMovable.  Not relevant for setters. */
  true, /* 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");

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

  double result(self->Start());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().set(JS_NumberValue(double(result)));
  return true;
}

static const JSJitInfo start_getterinfo = {
  { (JSJitGetterOp)get_start },
  { prototypes::id::GridLine },
  { PrototypeTraits<prototypes::id::GridLine>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_DOUBLE,  /* 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 < 2, "There is no slot for us");

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

  double result(self->Breadth());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().set(JS_NumberValue(double(result)));
  return true;
}

static const JSJitInfo breadth_getterinfo = {
  { (JSJitGetterOp)get_breadth },
  { prototypes::id::GridLine },
  { PrototypeTraits<prototypes::id::GridLine>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_DOUBLE,  /* 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 < 2, "There is no slot for us");

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

  GridDeclaration result(self->Type());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!ToJSValue(cx, result, args.rval())) {
    return false;
  }
  return true;
}

static const JSJitInfo type_getterinfo = {
  { (JSJitGetterOp)get_type },
  { prototypes::id::GridLine },
  { PrototypeTraits<prototypes::id::GridLine>::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_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 2, "There is no slot for us");

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

  uint32_t result(self->Number());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setNumber(result);
  return true;
}

static const JSJitInfo number_getterinfo = {
  { (JSJitGetterOp)get_number },
  { prototypes::id::GridLine },
  { PrototypeTraits<prototypes::id::GridLine>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_DOUBLE,  /* 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 < 2, "There is no slot for us");

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

  int32_t result(self->NegativeNumber());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setInt32(int32_t(result));
  return true;
}

static const JSJitInfo negativeNumber_getterinfo = {
  { (JSJitGetterOp)get_negativeNumber },
  { prototypes::id::GridLine },
  { PrototypeTraits<prototypes::id::GridLine>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_INT32,  /* 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 < 2, "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::GridLine* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::GridLine>(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::GridLine* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::GridLine>(obj);
  if (self) {
    ClearWrapper(self, self, obj);
    AddForDeferredFinalization<mozilla::dom::GridLine>(self);
  }
}

static size_t
_objectMoved(JSObject* obj, JSObject* old)
{
  mozilla::dom::GridLine* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::GridLine>(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 JSPropertySpec sAttributes_specs[] = {
  { "names", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &names_getterinfo, nullptr, nullptr },
  { "start", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &start_getterinfo, nullptr, nullptr },
  { "breadth", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &breadth_getterinfo, nullptr, nullptr },
  { "type", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &type_getterinfo, nullptr, nullptr },
  { "number", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &number_getterinfo, nullptr, nullptr },
  { "negativeNumber", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &negativeNumber_getterinfo, nullptr, nullptr },
  { 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(6 <= 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[6];
static PropertyInfo sNativeProperties_propertyInfos[6];

static const NativePropertiesN<1> sNativeProperties = {
  false, 0,
  false, 0,
  false, 0,
  true,  0 /* sAttributes */,
  false, 0,
  false, 0,
  false, 0,
  -1,
  6,
  sNativeProperties_sortedPropertyIndices,
  {
    { sAttributes, &sNativeProperties_propertyInfos[0] }
  }
};
static_assert(6 < 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::GridLine,
  PrototypeTraits<prototypes::id::GridLine>::Depth,
  sNativePropertyHooks,
  "function GridLine() {\n    [native code]\n}",
  JS::GetRealmFunctionPrototype
};

static const DOMIfaceAndProtoJSClass sPrototypeClass = {
  {
    "GridLinePrototype",
    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::GridLine,
  PrototypeTraits<prototypes::id::GridLine>::Depth,
  sNativePropertyHooks,
  "[object GridLinePrototype]",
  JS::GetRealmObjectPrototype
};

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

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 = {
  { "GridLine",
    JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(2),
    &sClassOps,
    JS_NULL_CLASS_SPEC,
    &sClassExtension,
    JS_NULL_OBJECT_OPS
  },
  { prototypes::id::GridLine, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
  IsBaseOf<nsISupports, mozilla::dom::GridLine >::value,
  sNativePropertyHooks,
  FindAssociatedGlobalForNative<mozilla::dom::GridLine>::Get,
  GetProtoObjectHandle,
  GetCCParticipant<mozilla::dom::GridLine>::Get()
};
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.");

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

bool
Wrap(JSContext* aCx, mozilla::dom::GridLine* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
  static_assert(!IsBaseOf<NonRefcountedDOMObject, mozilla::dom::GridLine>::value,
                "Shouldn't have wrappercached things that are not refcounted.");
  MOZ_ASSERT(static_cast<mozilla::dom::GridLine*>(aObject) ==
             reinterpret_cast<mozilla::dom::GridLine*>(aObject),
             "Multiple inheritance for mozilla::dom::GridLine 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::GridLine> 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;
}

// 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(static, sXrayExpandoObjectClass, 1);

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

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

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

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

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

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

} // namespace GridLine_Binding



namespace GridLines_Binding {

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

  uint32_t result(self->Length());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setNumber(result);
  return true;
}

static const JSJitInfo length_getterinfo = {
  { (JSJitGetterOp)get_length },
  { prototypes::id::GridLines },
  { PrototypeTraits<prototypes::id::GridLines>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_DOUBLE,  /* 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
item(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::GridLines* self, const JSJitMethodCallArgs& args)
{
  AUTO_PROFILER_LABEL_FAST("GridLines.item", DOM, cx);

  if (MOZ_UNLIKELY(args.length() < 1)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "GridLines.item");
  }
  uint32_t arg0;
  if (!ValueToPrimitive<uint32_t, eDefault>(cx, args[0], &arg0)) {
    return false;
  }
  auto result(StrongOrRawPtr<mozilla::dom::GridLine>(self->Item(arg0)));
  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;
}

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

// 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("item", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&item_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
  JS_SYM_FNSPEC(iterator, nullptr, nullptr, 0, 0, "ArrayValues"),
  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(2 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
    "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");

// We deliberately use brace-elision to make Visual Studio produce better initalization code.
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wmissing-braces"
#endif
static const JSPropertySpec sAttributes_specs[] = {
  { "length", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &length_getterinfo, nullptr, nullptr },
  { 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(1 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
    "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");


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

static const NativePropertiesN<2> sNativeProperties = {
  false, 0,
  false, 0,
  true,  0 /* sMethods */,
  true,  1 /* sAttributes */,
  false, 0,
  false, 0,
  false, 0,
  -1,
  3,
  sNativeProperties_sortedPropertyIndices,
  {
    { sMethods, &sNativeProperties_propertyInfos[0] },
    { sAttributes, &sNativeProperties_propertyInfos[2] }
  }
};
static_assert(3 < 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::GridLines,
  PrototypeTraits<prototypes::id::GridLines>::Depth,
  sNativePropertyHooks,
  "function GridLines() {\n    [native code]\n}",
  JS::GetRealmFunctionPrototype
};

static const DOMIfaceAndProtoJSClass sPrototypeClass = {
  {
    "GridLinesPrototype",
    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::GridLines,
  PrototypeTraits<prototypes::id::GridLines>::Depth,
  sNativePropertyHooks,
  "[object GridLinesPrototype]",
  JS::GetRealmObjectPrototype
};

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

static_assert(IsBaseOf<nsISupports, mozilla::dom::GridLines >::value,
                  "We don't support non-nsISupports native classes for "
                  "proxy-based bindings yet");


class DOMProxyHandler : public mozilla::dom::DOMProxyHandler
{
public:
  explicit constexpr DOMProxyHandler()
  {
  }

  virtual bool
  getOwnPropDescriptor(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, bool ignoreNamedProps, JS::MutableHandle<JS::PropertyDescriptor> desc) const override;

  virtual bool
  defineProperty(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, JS::Handle<JS::PropertyDescriptor> desc, JS::ObjectOpResult& opresult, bool* defined) const override;

  using mozilla::dom::DOMProxyHandler::defineProperty;

  virtual bool
  ownPropNames(JSContext* cx, JS::Handle<JSObject*> proxy, unsigned flags, JS::AutoIdVector& props) const override;

  virtual bool
  hasOwn(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, bool* bp) const override;

  virtual bool
  get(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<JS::Value> receiver, JS::Handle<jsid> id, JS::MutableHandle<JS::Value> vp) const override;

  virtual const char*
  className(JSContext* cx, JS::Handle<JSObject*> proxy) const override;

  virtual bool
  finalizeInBackground(const JS::Value& priv) const override;

  virtual void
  finalize(JSFreeOp* fop, JSObject* proxy) const override;

  static const DOMProxyHandler*
  getInstance();

  virtual bool
  delete_(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, JS::ObjectOpResult& opresult) const override;

  virtual bool
  getElements(JSContext* cx, JS::Handle<JSObject*> proxy, uint32_t begin, uint32_t end, js::ElementAdder* adder) const override;

  virtual size_t
  objectMoved(JSObject* obj, JSObject* old) const override;
};

MOZ_ALWAYS_INLINE bool
IsProxy(JSObject* obj)
{
  return js::IsProxy(obj) && js::GetProxyHandler(obj) == DOMProxyHandler::getInstance();
}

MOZ_ALWAYS_INLINE mozilla::dom::GridLines*
UnwrapProxy(JSObject* obj)
{
  MOZ_ASSERT(js::IsProxy(obj));
  if (js::GetProxyHandler(obj) != DOMProxyHandler::getInstance()) {
    MOZ_ASSERT(xpc::WrapperFactory::IsXrayWrapper(obj));
    obj = js::UncheckedUnwrap(obj);
  }
  MOZ_ASSERT(IsProxy(obj));
  return static_cast<mozilla::dom::GridLines*>(js::GetProxyReservedSlot(obj, DOM_OBJECT_SLOT).toPrivate());
}

bool
DOMProxyHandler::getOwnPropDescriptor(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, bool ignoreNamedProps, JS::MutableHandle<JS::PropertyDescriptor> desc) const
{
  bool isXray = xpc::WrapperFactory::IsXrayWrapper(proxy);
  uint32_t index = GetArrayIndexFromId(cx, id);
  if (IsArrayIndex(index)) {
    mozilla::dom::GridLines* self = UnwrapProxy(proxy);
    bool found = false;
    auto result(StrongOrRawPtr<mozilla::dom::GridLine>(self->IndexedGetter(index, found)));
    MOZ_ASSERT(!JS_IsExceptionPending(cx));

    if (found) {
      if (!result) {
        desc.value().setNull();
        FillPropertyDescriptor(desc, proxy, true);
        return true;
      }
      if (!GetOrCreateDOMReflector(cx, result, desc.value())) {
        MOZ_ASSERT(JS_IsExceptionPending(cx));
        return false;
      }
      FillPropertyDescriptor(desc, proxy, true);
      return true;
    }
  }

  JS::Rooted<JSObject*> expando(cx);
  if (!isXray && (expando = GetExpandoObject(proxy))) {
    if (!JS_GetOwnPropertyDescriptorById(cx, expando, id, desc)) {
      return false;
    }
    if (desc.object()) {
      // Pretend the property lives on the wrapper.
      desc.object().set(proxy);
      return true;
    }
  }

  desc.object().set(nullptr);
  return true;
}

bool
DOMProxyHandler::defineProperty(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, JS::Handle<JS::PropertyDescriptor> desc, JS::ObjectOpResult& opresult, bool* defined) const
{
  if (IsArrayIndex(GetArrayIndexFromId(cx, id))) {
    *defined = true;
    return opresult.failNoIndexedSetter();
  }
  return mozilla::dom::DOMProxyHandler::defineProperty(cx, proxy, id, desc, opresult, defined);
}


bool
DOMProxyHandler::ownPropNames(JSContext* cx, JS::Handle<JSObject*> proxy, unsigned flags, JS::AutoIdVector& props) const
{
  bool isXray = xpc::WrapperFactory::IsXrayWrapper(proxy);

  uint32_t length = UnwrapProxy(proxy)->Length();
  MOZ_ASSERT(int32_t(length) >= 0);
  for (int32_t i = 0; i < int32_t(length); ++i) {
    if (!props.append(INT_TO_JSID(i))) {
      return false;
    }
  }

  JS::Rooted<JSObject*> expando(cx);
  if (!isXray && (expando = DOMProxyHandler::GetExpandoObject(proxy)) &&
      !js::GetPropertyKeys(cx, expando, flags, &props)) {
    return false;
  }

  return true;
}

bool
DOMProxyHandler::hasOwn(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, bool* bp) const
{
  MOZ_ASSERT(!xpc::WrapperFactory::IsXrayWrapper(proxy),
            "Should not have a XrayWrapper here");

  uint32_t index = GetArrayIndexFromId(cx, id);
  if (IsArrayIndex(index)) {
    bool found = false;
    mozilla::dom::GridLines* self = UnwrapProxy(proxy);
    auto result(StrongOrRawPtr<mozilla::dom::GridLine>(self->IndexedGetter(index, found)));
    MOZ_ASSERT(!JS_IsExceptionPending(cx));
    (void)result;

    *bp = found;
    return true;
  }


  JS::Rooted<JSObject*> expando(cx, GetExpandoObject(proxy));
  if (expando) {
    bool b = true;
    bool ok = JS_HasPropertyById(cx, expando, id, &b);
    *bp = !!b;
    if (!ok || *bp) {
      return ok;
    }
  }

  *bp = false;
  return true;
}

bool
DOMProxyHandler::get(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<JS::Value> receiver, JS::Handle<jsid> id, JS::MutableHandle<JS::Value> vp) const
{
  MOZ_ASSERT(!xpc::WrapperFactory::IsXrayWrapper(proxy),
              "Should not have a XrayWrapper here");

  uint32_t index = GetArrayIndexFromId(cx, id);
  if (IsArrayIndex(index)) {
    mozilla::dom::GridLines* self = UnwrapProxy(proxy);
    bool found = false;
    auto result(StrongOrRawPtr<mozilla::dom::GridLine>(self->IndexedGetter(index, found)));
    MOZ_ASSERT(!JS_IsExceptionPending(cx));

    if (found) {
      if (!result) {
        vp.setNull();
        return true;
      }
      if (!GetOrCreateDOMReflector(cx, result, vp)) {
        MOZ_ASSERT(JS_IsExceptionPending(cx));
        return false;
      }
      return true;
    }
    // Even if we don't have this index, we don't forward the
    // get on to our expando object.
  } else {
    { // Scope for expando
      JS::Rooted<JSObject*> expando(cx, DOMProxyHandler::GetExpandoObject(proxy));
      if (expando) {
        bool hasProp;
        if (!JS_HasPropertyById(cx, expando, id, &hasProp)) {
          return false;
        }

        if (hasProp) {
          // Forward the get to the expando object, but our receiver is whatever our
          // receiver is.
          return JS_ForwardGetPropertyTo(cx, expando, id, receiver, vp);
        }
      }
    }
  }

  bool foundOnPrototype;
  if (!GetPropertyOnPrototype(cx, proxy, receiver, id, &foundOnPrototype, vp)) {
    return false;
  }

  if (foundOnPrototype) {
    return true;
  }

  vp.setUndefined();
  return true;
}

const char*
DOMProxyHandler::className(JSContext* cx, JS::Handle<JSObject*> proxy) const
{
  return "GridLines";
}

bool
DOMProxyHandler::finalizeInBackground(const JS::Value& priv) const
{
  return false;
}

void
DOMProxyHandler::finalize(JSFreeOp* fop, JSObject* proxy) const
{
  mozilla::dom::GridLines* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::GridLines>(proxy);
  if (self) {
    ClearWrapper(self, self, proxy);
    AddForDeferredFinalization<mozilla::dom::GridLines>(self);
  }
}

const DOMProxyHandler*
DOMProxyHandler::getInstance()
{
  static const DOMProxyHandler instance;
  return &instance;
}

bool
DOMProxyHandler::delete_(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, JS::ObjectOpResult& opresult) const
{
  MOZ_ASSERT(!xpc::WrapperFactory::IsXrayWrapper(proxy),
            "Should not have a XrayWrapper here");

  uint32_t index = GetArrayIndexFromId(cx, id);
  if (IsArrayIndex(index)) {
    bool deleteSucceeded;
    bool found = false;
    mozilla::dom::GridLines* self = UnwrapProxy(proxy);
    auto result(StrongOrRawPtr<mozilla::dom::GridLine>(self->IndexedGetter(index, found)));
    MOZ_ASSERT(!JS_IsExceptionPending(cx));
    (void)result;
    deleteSucceeded = !found;
    return deleteSucceeded ? opresult.succeed() : opresult.failCantDelete();
  }

  return dom::DOMProxyHandler::delete_(cx, proxy, id, opresult);
}

bool
DOMProxyHandler::getElements(JSContext* cx, JS::Handle<JSObject*> proxy, uint32_t begin, uint32_t end, js::ElementAdder* adder) const
{
  JS::Rooted<JS::Value> temp(cx);
  MOZ_ASSERT(!xpc::WrapperFactory::IsXrayWrapper(proxy),
             "Should not have a XrayWrapper here");

  mozilla::dom::GridLines* self = UnwrapProxy(proxy);
  uint32_t length = self->Length();
  // Compute the end of the indices we'll get ourselves
  uint32_t ourEnd = std::max(begin, std::min(end, length));

  for (uint32_t index = begin; index < ourEnd; ++index) {
    bool found = false;
    auto result(StrongOrRawPtr<mozilla::dom::GridLine>(self->IndexedGetter(index, found)));
    MOZ_ASSERT(!JS_IsExceptionPending(cx));

    MOZ_ASSERT(found);
    if (!result) {
      temp.setNull();
      if (!adder->append(cx, temp)) return false;
      continue;
    }
    if (!GetOrCreateDOMReflector(cx, result, &temp)) {
      MOZ_ASSERT(JS_IsExceptionPending(cx));
      return false;
    }
    if (!adder->append(cx, temp)) return false;
    continue;
  }

  if (end > ourEnd) {
    JS::Rooted<JSObject*> proto(cx);
    if (!js::GetObjectProto(cx, proxy, &proto)) {
      return false;
    }
    return js::GetElementsWithAdder(cx, proto, proxy, ourEnd, end, adder);
  }

  return true;
}

size_t
DOMProxyHandler::objectMoved(JSObject* obj, JSObject* old) const
{
  mozilla::dom::GridLines* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::GridLines>(obj);
  if (self) {
    UpdateWrapper(self, self, obj, old);
  }

  return 0;
}

static const DOMJSClass sClass = {
  PROXY_CLASS_DEF("GridLines",
                  JSCLASS_IS_DOMJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(1)),
  { prototypes::id::GridLines, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
  IsBaseOf<nsISupports, mozilla::dom::GridLines >::value,
  sNativePropertyHooks,
  FindAssociatedGlobalForNative<mozilla::dom::GridLines>::Get,
  GetProtoObjectHandle,
  GetCCParticipant<mozilla::dom::GridLines>::Get()
};

bool
Wrap(JSContext* aCx, mozilla::dom::GridLines* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
  static_assert(!IsBaseOf<NonRefcountedDOMObject, mozilla::dom::GridLines>::value,
                "Shouldn't have wrappercached things that are not refcounted.");
  MOZ_ASSERT(static_cast<mozilla::dom::GridLines*>(aObject) ==
             reinterpret_cast<mozilla::dom::GridLines*>(aObject),
             "Multiple inheritance for mozilla::dom::GridLines 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::GridLines> creator(aCx);
  creator.CreateProxyObject(aCx, &sClass.mBase, DOMProxyHandler::getInstance(),
                            proto, aObject, JS::UndefinedHandleValue, 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;
}

static bool
ResolveOwnProperty(JSContext* cx, JS::Handle<JSObject*> wrapper, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::MutableHandle<JS::PropertyDescriptor> desc)
{
  return js::GetProxyHandler(obj)->getOwnPropertyDescriptor(cx, wrapper, id, desc);
}

static bool
EnumerateOwnProperties(JSContext* cx, JS::Handle<JSObject*> wrapper, JS::Handle<JSObject*> obj, JS::AutoIdVector& props)
{
  return js::GetProxyHandler(obj)->ownPropertyKeys(cx, wrapper, props);
}

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

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

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

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

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

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

} // namespace GridLines_Binding



namespace GridTrack_Binding {

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

  double result(self->Start());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().set(JS_NumberValue(double(result)));
  return true;
}

static const JSJitInfo start_getterinfo = {
  { (JSJitGetterOp)get_start },
  { prototypes::id::GridTrack },
  { PrototypeTraits<prototypes::id::GridTrack>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_DOUBLE,  /* 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_breadth(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::GridTrack* self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_FAST("get GridTrack.breadth", DOM, cx);

  double result(self->Breadth());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().set(JS_NumberValue(double(result)));
  return true;
}

static const JSJitInfo breadth_getterinfo = {
  { (JSJitGetterOp)get_breadth },
  { prototypes::id::GridTrack },
  { PrototypeTraits<prototypes::id::GridTrack>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_DOUBLE,  /* 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_type(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::GridTrack* self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_FAST("get GridTrack.type", DOM, cx);

  GridDeclaration result(self->Type());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!ToJSValue(cx, result, args.rval())) {
    return false;
  }
  return true;
}

static const JSJitInfo type_getterinfo = {
  { (JSJitGetterOp)get_type },
  { prototypes::id::GridTrack },
  { PrototypeTraits<prototypes::id::GridTrack>::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_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_state(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::GridTrack* self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_FAST("get GridTrack.state", DOM, cx);

  GridTrackState result(self->State());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!ToJSValue(cx, result, args.rval())) {
    return false;
  }
  return true;
}

static const JSJitInfo state_getterinfo = {
  { (JSJitGetterOp)get_state },
  { prototypes::id::GridTrack },
  { PrototypeTraits<prototypes::id::GridTrack>::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_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::GridTrack* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::GridTrack>(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::GridTrack* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::GridTrack>(obj);
  if (self) {
    ClearWrapper(self, self, obj);
    AddForDeferredFinalization<mozilla::dom::GridTrack>(self);
  }
}

static size_t
_objectMoved(JSObject* obj, JSObject* old)
{
  mozilla::dom::GridTrack* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::GridTrack>(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 JSPropertySpec sAttributes_specs[] = {
  { "start", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &start_getterinfo, nullptr, nullptr },
  { "breadth", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &breadth_getterinfo, nullptr, nullptr },
  { "type", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &type_getterinfo, nullptr, nullptr },
  { "state", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &state_getterinfo, nullptr, nullptr },
  { 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(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");

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::GridTrack,
  PrototypeTraits<prototypes::id::GridTrack>::Depth,
  sNativePropertyHooks,
  "function GridTrack() {\n    [native code]\n}",
  JS::GetRealmFunctionPrototype
};

static const DOMIfaceAndProtoJSClass sPrototypeClass = {
  {
    "GridTrackPrototype",
    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::GridTrack,
  PrototypeTraits<prototypes::id::GridTrack>::Depth,
  sNativePropertyHooks,
  "[object GridTrackPrototype]",
  JS::GetRealmObjectPrototype
};

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

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 = {
  { "GridTrack",
    JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
    &sClassOps,
    JS_NULL_CLASS_SPEC,
    &sClassExtension,
    JS_NULL_OBJECT_OPS
  },
  { prototypes::id::GridTrack, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
  IsBaseOf<nsISupports, mozilla::dom::GridTrack >::value,
  sNativePropertyHooks,
  FindAssociatedGlobalForNative<mozilla::dom::GridTrack>::Get,
  GetProtoObjectHandle,
  GetCCParticipant<mozilla::dom::GridTrack>::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::GridTrack* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
  static_assert(!IsBaseOf<NonRefcountedDOMObject, mozilla::dom::GridTrack>::value,
                "Shouldn't have wrappercached things that are not refcounted.");
  MOZ_ASSERT(static_cast<mozilla::dom::GridTrack*>(aObject) ==
             reinterpret_cast<mozilla::dom::GridTrack*>(aObject),
             "Multiple inheritance for mozilla::dom::GridTrack 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::GridTrack> 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::GridTrack,
  constructors::id::GridTrack,
  nullptr,
  &DefaultXrayExpandoObjectClass
} };

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

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

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

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

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

} // namespace GridTrack_Binding



namespace GridTracks_Binding {

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

  uint32_t result(self->Length());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setNumber(result);
  return true;
}

static const JSJitInfo length_getterinfo = {
  { (JSJitGetterOp)get_length },
  { prototypes::id::GridTracks },
  { PrototypeTraits<prototypes::id::GridTracks>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_DOUBLE,  /* 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
item(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::GridTracks* self, const JSJitMethodCallArgs& args)
{
  AUTO_PROFILER_LABEL_FAST("GridTracks.item", DOM, cx);

  if (MOZ_UNLIKELY(args.length() < 1)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "GridTracks.item");
  }
  uint32_t arg0;
  if (!ValueToPrimitive<uint32_t, eDefault>(cx, args[0], &arg0)) {
    return false;
  }
  auto result(StrongOrRawPtr<mozilla::dom::GridTrack>(self->Item(arg0)));
  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;
}

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

// 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("item", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&item_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
  JS_SYM_FNSPEC(iterator, nullptr, nullptr, 0, 0, "ArrayValues"),
  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(2 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
    "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");

// We deliberately use brace-elision to make Visual Studio produce better initalization code.
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wmissing-braces"
#endif
static const JSPropertySpec sAttributes_specs[] = {
  { "length", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &length_getterinfo, nullptr, nullptr },
  { 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(1 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
    "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");


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

static const NativePropertiesN<2> sNativeProperties = {
  false, 0,
  false, 0,
  true,  0 /* sMethods */,
  true,  1 /* sAttributes */,
  false, 0,
  false, 0,
  false, 0,
  -1,
  3,
  sNativeProperties_sortedPropertyIndices,
  {
    { sMethods, &sNativeProperties_propertyInfos[0] },
    { sAttributes, &sNativeProperties_propertyInfos[2] }
  }
};
static_assert(3 < 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::GridTracks,
  PrototypeTraits<prototypes::id::GridTracks>::Depth,
  sNativePropertyHooks,
  "function GridTracks() {\n    [native code]\n}",
  JS::GetRealmFunctionPrototype
};

static const DOMIfaceAndProtoJSClass sPrototypeClass = {
  {
    "GridTracksPrototype",
    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::GridTracks,
  PrototypeTraits<prototypes::id::GridTracks>::Depth,
  sNativePropertyHooks,
  "[object GridTracksPrototype]",
  JS::GetRealmObjectPrototype
};

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

static_assert(IsBaseOf<nsISupports, mozilla::dom::GridTracks >::value,
                  "We don't support non-nsISupports native classes for "
                  "proxy-based bindings yet");


class DOMProxyHandler : public mozilla::dom::DOMProxyHandler
{
public:
  explicit constexpr DOMProxyHandler()
  {
  }

  virtual bool
  getOwnPropDescriptor(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, bool ignoreNamedProps, JS::MutableHandle<JS::PropertyDescriptor> desc) const override;

  virtual bool
  defineProperty(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, JS::Handle<JS::PropertyDescriptor> desc, JS::ObjectOpResult& opresult, bool* defined) const override;

  using mozilla::dom::DOMProxyHandler::defineProperty;

  virtual bool
  ownPropNames(JSContext* cx, JS::Handle<JSObject*> proxy, unsigned flags, JS::AutoIdVector& props) const override;

  virtual bool
  hasOwn(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, bool* bp) const override;

  virtual bool
  get(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<JS::Value> receiver, JS::Handle<jsid> id, JS::MutableHandle<JS::Value> vp) const override;

  virtual const char*
  className(JSContext* cx, JS::Handle<JSObject*> proxy) const override;

  virtual bool
  finalizeInBackground(const JS::Value& priv) const override;

  virtual void
  finalize(JSFreeOp* fop, JSObject* proxy) const override;

  static const DOMProxyHandler*
  getInstance();

  virtual bool
  delete_(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, JS::ObjectOpResult& opresult) const override;

  virtual bool
  getElements(JSContext* cx, JS::Handle<JSObject*> proxy, uint32_t begin, uint32_t end, js::ElementAdder* adder) const override;

  virtual size_t
  objectMoved(JSObject* obj, JSObject* old) const override;
};

MOZ_ALWAYS_INLINE bool
IsProxy(JSObject* obj)
{
  return js::IsProxy(obj) && js::GetProxyHandler(obj) == DOMProxyHandler::getInstance();
}

MOZ_ALWAYS_INLINE mozilla::dom::GridTracks*
UnwrapProxy(JSObject* obj)
{
  MOZ_ASSERT(js::IsProxy(obj));
  if (js::GetProxyHandler(obj) != DOMProxyHandler::getInstance()) {
    MOZ_ASSERT(xpc::WrapperFactory::IsXrayWrapper(obj));
    obj = js::UncheckedUnwrap(obj);
  }
  MOZ_ASSERT(IsProxy(obj));
  return static_cast<mozilla::dom::GridTracks*>(js::GetProxyReservedSlot(obj, DOM_OBJECT_SLOT).toPrivate());
}

bool
DOMProxyHandler::getOwnPropDescriptor(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, bool ignoreNamedProps, JS::MutableHandle<JS::PropertyDescriptor> desc) const
{
  bool isXray = xpc::WrapperFactory::IsXrayWrapper(proxy);
  uint32_t index = GetArrayIndexFromId(cx, id);
  if (IsArrayIndex(index)) {
    mozilla::dom::GridTracks* self = UnwrapProxy(proxy);
    bool found = false;
    auto result(StrongOrRawPtr<mozilla::dom::GridTrack>(self->IndexedGetter(index, found)));
    MOZ_ASSERT(!JS_IsExceptionPending(cx));

    if (found) {
      if (!result) {
        desc.value().setNull();
        FillPropertyDescriptor(desc, proxy, true);
        return true;
      }
      if (!GetOrCreateDOMReflector(cx, result, desc.value())) {
        MOZ_ASSERT(JS_IsExceptionPending(cx));
        return false;
      }
      FillPropertyDescriptor(desc, proxy, true);
      return true;
    }
  }

  JS::Rooted<JSObject*> expando(cx);
  if (!isXray && (expando = GetExpandoObject(proxy))) {
    if (!JS_GetOwnPropertyDescriptorById(cx, expando, id, desc)) {
      return false;
    }
    if (desc.object()) {
      // Pretend the property lives on the wrapper.
      desc.object().set(proxy);
      return true;
    }
  }

  desc.object().set(nullptr);
  return true;
}

bool
DOMProxyHandler::defineProperty(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, JS::Handle<JS::PropertyDescriptor> desc, JS::ObjectOpResult& opresult, bool* defined) const
{
  if (IsArrayIndex(GetArrayIndexFromId(cx, id))) {
    *defined = true;
    return opresult.failNoIndexedSetter();
  }
  return mozilla::dom::DOMProxyHandler::defineProperty(cx, proxy, id, desc, opresult, defined);
}


bool
DOMProxyHandler::ownPropNames(JSContext* cx, JS::Handle<JSObject*> proxy, unsigned flags, JS::AutoIdVector& props) const
{
  bool isXray = xpc::WrapperFactory::IsXrayWrapper(proxy);

  uint32_t length = UnwrapProxy(proxy)->Length();
  MOZ_ASSERT(int32_t(length) >= 0);
  for (int32_t i = 0; i < int32_t(length); ++i) {
    if (!props.append(INT_TO_JSID(i))) {
      return false;
    }
  }

  JS::Rooted<JSObject*> expando(cx);
  if (!isXray && (expando = DOMProxyHandler::GetExpandoObject(proxy)) &&
      !js::GetPropertyKeys(cx, expando, flags, &props)) {
    return false;
  }

  return true;
}

bool
DOMProxyHandler::hasOwn(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, bool* bp) const
{
  MOZ_ASSERT(!xpc::WrapperFactory::IsXrayWrapper(proxy),
            "Should not have a XrayWrapper here");

  uint32_t index = GetArrayIndexFromId(cx, id);
  if (IsArrayIndex(index)) {
    bool found = false;
    mozilla::dom::GridTracks* self = UnwrapProxy(proxy);
    auto result(StrongOrRawPtr<mozilla::dom::GridTrack>(self->IndexedGetter(index, found)));
    MOZ_ASSERT(!JS_IsExceptionPending(cx));
    (void)result;

    *bp = found;
    return true;
  }


  JS::Rooted<JSObject*> expando(cx, GetExpandoObject(proxy));
  if (expando) {
    bool b = true;
    bool ok = JS_HasPropertyById(cx, expando, id, &b);
    *bp = !!b;
    if (!ok || *bp) {
      return ok;
    }
  }

  *bp = false;
  return true;
}

bool
DOMProxyHandler::get(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<JS::Value> receiver, JS::Handle<jsid> id, JS::MutableHandle<JS::Value> vp) const
{
  MOZ_ASSERT(!xpc::WrapperFactory::IsXrayWrapper(proxy),
              "Should not have a XrayWrapper here");

  uint32_t index = GetArrayIndexFromId(cx, id);
  if (IsArrayIndex(index)) {
    mozilla::dom::GridTracks* self = UnwrapProxy(proxy);
    bool found = false;
    auto result(StrongOrRawPtr<mozilla::dom::GridTrack>(self->IndexedGetter(index, found)));
    MOZ_ASSERT(!JS_IsExceptionPending(cx));

    if (found) {
      if (!result) {
        vp.setNull();
        return true;
      }
      if (!GetOrCreateDOMReflector(cx, result, vp)) {
        MOZ_ASSERT(JS_IsExceptionPending(cx));
        return false;
      }
      return true;
    }
    // Even if we don't have this index, we don't forward the
    // get on to our expando object.
  } else {
    { // Scope for expando
      JS::Rooted<JSObject*> expando(cx, DOMProxyHandler::GetExpandoObject(proxy));
      if (expando) {
        bool hasProp;
        if (!JS_HasPropertyById(cx, expando, id, &hasProp)) {
          return false;
        }

        if (hasProp) {
          // Forward the get to the expando object, but our receiver is whatever our
          // receiver is.
          return JS_ForwardGetPropertyTo(cx, expando, id, receiver, vp);
        }
      }
    }
  }

  bool foundOnPrototype;
  if (!GetPropertyOnPrototype(cx, proxy, receiver, id, &foundOnPrototype, vp)) {
    return false;
  }

  if (foundOnPrototype) {
    return true;
  }

  vp.setUndefined();
  return true;
}

const char*
DOMProxyHandler::className(JSContext* cx, JS::Handle<JSObject*> proxy) const
{
  return "GridTracks";
}

bool
DOMProxyHandler::finalizeInBackground(const JS::Value& priv) const
{
  return false;
}

void
DOMProxyHandler::finalize(JSFreeOp* fop, JSObject* proxy) const
{
  mozilla::dom::GridTracks* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::GridTracks>(proxy);
  if (self) {
    ClearWrapper(self, self, proxy);
    AddForDeferredFinalization<mozilla::dom::GridTracks>(self);
  }
}

const DOMProxyHandler*
DOMProxyHandler::getInstance()
{
  static const DOMProxyHandler instance;
  return &instance;
}

bool
DOMProxyHandler::delete_(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, JS::ObjectOpResult& opresult) const
{
  MOZ_ASSERT(!xpc::WrapperFactory::IsXrayWrapper(proxy),
            "Should not have a XrayWrapper here");

  uint32_t index = GetArrayIndexFromId(cx, id);
  if (IsArrayIndex(index)) {
    bool deleteSucceeded;
    bool found = false;
    mozilla::dom::GridTracks* self = UnwrapProxy(proxy);
    auto result(StrongOrRawPtr<mozilla::dom::GridTrack>(self->IndexedGetter(index, found)));
    MOZ_ASSERT(!JS_IsExceptionPending(cx));
    (void)result;
    deleteSucceeded = !found;
    return deleteSucceeded ? opresult.succeed() : opresult.failCantDelete();
  }

  return dom::DOMProxyHandler::delete_(cx, proxy, id, opresult);
}

bool
DOMProxyHandler::getElements(JSContext* cx, JS::Handle<JSObject*> proxy, uint32_t begin, uint32_t end, js::ElementAdder* adder) const
{
  JS::Rooted<JS::Value> temp(cx);
  MOZ_ASSERT(!xpc::WrapperFactory::IsXrayWrapper(proxy),
             "Should not have a XrayWrapper here");

  mozilla::dom::GridTracks* self = UnwrapProxy(proxy);
  uint32_t length = self->Length();
  // Compute the end of the indices we'll get ourselves
  uint32_t ourEnd = std::max(begin, std::min(end, length));

  for (uint32_t index = begin; index < ourEnd; ++index) {
    bool found = false;
    auto result(StrongOrRawPtr<mozilla::dom::GridTrack>(self->IndexedGetter(index, found)));
    MOZ_ASSERT(!JS_IsExceptionPending(cx));

    MOZ_ASSERT(found);
    if (!result) {
      temp.setNull();
      if (!adder->append(cx, temp)) return false;
      continue;
    }
    if (!GetOrCreateDOMReflector(cx, result, &temp)) {
      MOZ_ASSERT(JS_IsExceptionPending(cx));
      return false;
    }
    if (!adder->append(cx, temp)) return false;
    continue;
  }

  if (end > ourEnd) {
    JS::Rooted<JSObject*> proto(cx);
    if (!js::GetObjectProto(cx, proxy, &proto)) {
      return false;
    }
    return js::GetElementsWithAdder(cx, proto, proxy, ourEnd, end, adder);
  }

  return true;
}

size_t
DOMProxyHandler::objectMoved(JSObject* obj, JSObject* old) const
{
  mozilla::dom::GridTracks* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::GridTracks>(obj);
  if (self) {
    UpdateWrapper(self, self, obj, old);
  }

  return 0;
}

static const DOMJSClass sClass = {
  PROXY_CLASS_DEF("GridTracks",
                  JSCLASS_IS_DOMJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(1)),
  { prototypes::id::GridTracks, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
  IsBaseOf<nsISupports, mozilla::dom::GridTracks >::value,
  sNativePropertyHooks,
  FindAssociatedGlobalForNative<mozilla::dom::GridTracks>::Get,
  GetProtoObjectHandle,
  GetCCParticipant<mozilla::dom::GridTracks>::Get()
};

bool
Wrap(JSContext* aCx, mozilla::dom::GridTracks* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
  static_assert(!IsBaseOf<NonRefcountedDOMObject, mozilla::dom::GridTracks>::value,
                "Shouldn't have wrappercached things that are not refcounted.");
  MOZ_ASSERT(static_cast<mozilla::dom::GridTracks*>(aObject) ==
             reinterpret_cast<mozilla::dom::GridTracks*>(aObject),
             "Multiple inheritance for mozilla::dom::GridTracks 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::GridTracks> creator(aCx);
  creator.CreateProxyObject(aCx, &sClass.mBase, DOMProxyHandler::getInstance(),
                            proto, aObject, JS::UndefinedHandleValue, 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;
}

static bool
ResolveOwnProperty(JSContext* cx, JS::Handle<JSObject*> wrapper, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::MutableHandle<JS::PropertyDescriptor> desc)
{
  return js::GetProxyHandler(obj)->getOwnPropertyDescriptor(cx, wrapper, id, desc);
}

static bool
EnumerateOwnProperties(JSContext* cx, JS::Handle<JSObject*> wrapper, JS::Handle<JSObject*> obj, JS::AutoIdVector& props)
{
  return js::GetProxyHandler(obj)->ownPropertyKeys(cx, wrapper, props);
}

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

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

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

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

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

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

} // namespace GridTracks_Binding



} // namespace dom
} // namespace mozilla

Coverage Report

Created: 2018-09-25 14:53