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

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

#include "AtomList.h"
#include "CustomElementRegistry.h"
#include "CustomElementRegistryBinding.h"
#include "FunctionBinding.h"
#include "WrapperFactory.h"
#include "mozilla/OwningNonNull.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/CustomElementRegistry.h"
#include "mozilla/dom/DOMJSClass.h"
#include "mozilla/dom/DocGroup.h"
#include "mozilla/dom/NonRefcountedDOMObject.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/dom/ScriptSettings.h"
#include "mozilla/dom/SimpleGlobalObject.h"
#include "mozilla/dom/ToJSValue.h"
#include "mozilla/dom/XrayExpandoClass.h"
#include "nsContentUtils.h"
#include "nsINode.h"

namespace mozilla {
namespace dom {

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



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



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

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

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

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

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

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

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

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

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

  return true;
}

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

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

ElementDefinitionOptions&
ElementDefinitionOptions::operator=(const ElementDefinitionOptions& aOther)
{
  DictionaryBase::operator=(aOther);
  mExtends.Reset();
  if (aOther.mExtends.WasPassed()) {
    mExtends.Construct(aOther.mExtends.Value());
  }
  return *this;
}

namespace binding_detail {
} // namespace binding_detail


void
CustomElementCreationCallback::Call(JSContext* cx, JS::Handle<JS::Value> aThisVal, const nsAString& name, ErrorResult& aRv)
{
  JS::Rooted<JS::Value> rval(cx, JS::UndefinedValue());
  JS::AutoValueVector argv(cx);
  if (!argv.resize(1)) {
    aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
    return;
  }
  unsigned argc = 1;

  do {
    nsString mutableStr(name);
    if (!xpc::NonVoidStringToJsval(cx, mutableStr, argv[0])) {
      aRv.Throw(NS_ERROR_UNEXPECTED);
      return;
    }
    break;
  } while (false);

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



namespace binding_detail {
} // namespace binding_detail


namespace CustomElementRegistry_Binding {

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

  if (MOZ_UNLIKELY(args.length() < 2)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "CustomElementRegistry.define");
  }
  binding_detail::FakeString arg0;
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
    return false;
  }
  RootedCallback<OwningNonNull<binding_detail::FastFunction>> arg1(cx);
  if (args[1].isObject()) {
    if (JS::IsCallable(&args[1].toObject())) {
    { // scope for tempRoot and tempGlobalRoot if needed
      arg1 = new binding_detail::FastFunction(&args[1].toObject(), JS::CurrentGlobalOrNull(cx));
    }
    } else {
      ThrowErrorMessage(cx, MSG_NOT_CALLABLE, "Argument 2 of CustomElementRegistry.define");
      return false;
    }
  } else {
    ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Argument 2 of CustomElementRegistry.define");
    return false;
  }
  binding_detail::FastElementDefinitionOptions arg2;
  if (!arg2.Init(cx, (args.hasDefined(2)) ? args[2] : JS::NullHandleValue,  "Argument 3 of CustomElementRegistry.define", false)) {
    return false;
  }
  Maybe<AutoCEReaction> ceReaction;
  if (CustomElementRegistry::IsCustomElementEnabled(cx, obj)) {
    DocGroup* docGroup = self->GetDocGroup();
    if (docGroup) {
      ceReaction.emplace(docGroup->CustomElementReactionsStack(), cx);
    }
  }
  FastErrorResult rv;
  self->Define(cx, NonNullHelper(Constify(arg0)), NonNullHelper(arg1), Constify(arg2), rv);
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setUndefined();
  return true;
}

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

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

  if (MOZ_UNLIKELY(args.length() < 2)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "CustomElementRegistry.setElementCreationCallback");
  }
  binding_detail::FakeString arg0;
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
    return false;
  }
  RootedCallback<OwningNonNull<binding_detail::FastCustomElementCreationCallback>> arg1(cx);
  if (args[1].isObject()) {
    if (JS::IsCallable(&args[1].toObject())) {
    { // scope for tempRoot and tempGlobalRoot if needed
      arg1 = new binding_detail::FastCustomElementCreationCallback(&args[1].toObject(), JS::CurrentGlobalOrNull(cx));
    }
    } else {
      ThrowErrorMessage(cx, MSG_NOT_CALLABLE, "Argument 2 of CustomElementRegistry.setElementCreationCallback");
      return false;
    }
  } else {
    ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Argument 2 of CustomElementRegistry.setElementCreationCallback");
    return false;
  }
  FastErrorResult rv;
  self->SetElementCreationCallback(NonNullHelper(Constify(arg0)), NonNullHelper(arg1), rv);
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setUndefined();
  return true;
}

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

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

  if (MOZ_UNLIKELY(args.length() < 1)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "CustomElementRegistry.get");
  }
  binding_detail::FakeString arg0;
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
    return false;
  }
  JS::Rooted<JS::Value> result(cx);
  self->Get(cx, NonNullHelper(Constify(arg0)), &result);
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  JS::ExposeValueToActiveJS(result);
  args.rval().set(result);
  if (!MaybeWrapValue(cx, args.rval())) {
    return false;
  }
  return true;
}

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

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

  if (MOZ_UNLIKELY(args.length() < 1)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "CustomElementRegistry.whenDefined");
  }
  binding_detail::FakeString arg0;
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
    return false;
  }
  FastErrorResult rv;
  auto result(StrongOrRawPtr<Promise>(self->WhenDefined(NonNullHelper(Constify(arg0)), rv)));
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!ToJSValue(cx, result, args.rval())) {
    return false;
  }
  return true;
}

MOZ_CAN_RUN_SCRIPT static bool
whenDefined_promiseWrapper(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::CustomElementRegistry* self, const JSJitMethodCallArgs& args)
{
  bool ok = whenDefined(cx, obj, self, args);
  if (ok) {
    return true;
  }
  return ConvertExceptionToPromise(cx, args.rval());
}

static const JSJitInfo whenDefined_methodinfo = {
  { (JSJitGetterOp)whenDefined_promiseWrapper },
  { prototypes::id::CustomElementRegistry },
  { PrototypeTraits<prototypes::id::CustomElementRegistry>::Depth },
  JSJitInfo::Method,
  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
upgrade(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::CustomElementRegistry* self, const JSJitMethodCallArgs& args)
{
  AUTO_PROFILER_LABEL_FAST("CustomElementRegistry.upgrade", DOM, cx);

  if (MOZ_UNLIKELY(args.length() < 1)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "CustomElementRegistry.upgrade");
  }
  NonNull<nsINode> arg0;
  if (args[0].isObject()) {
    {
      nsresult rv = UnwrapObject<prototypes::id::Node, nsINode>(args[0], arg0);
      if (NS_FAILED(rv)) {
        ThrowErrorMessage(cx, MSG_DOES_NOT_IMPLEMENT_INTERFACE, "Argument 1 of CustomElementRegistry.upgrade", "Node");
        return false;
      }
    }
  } else {
    ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Argument 1 of CustomElementRegistry.upgrade");
    return false;
  }
  Maybe<AutoCEReaction> ceReaction;
  if (CustomElementRegistry::IsCustomElementEnabled(cx, obj)) {
    DocGroup* docGroup = self->GetDocGroup();
    if (docGroup) {
      ceReaction.emplace(docGroup->CustomElementReactionsStack(), cx);
    }
  }
  self->Upgrade(MOZ_KnownLive(NonNullHelper(arg0)));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setUndefined();
  return true;
}

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

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

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

  return 0;
}

// We deliberately use brace-elision to make Visual Studio produce better initalization code.
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wmissing-braces"
#endif
static const JSFunctionSpec sMethods_specs[] = {
  JS_FNSPEC("define", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&define_methodinfo), 2, JSPROP_ENUMERATE, nullptr),
  JS_FNSPEC("get", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&get_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
  JS_FNSPEC("whenDefined", (GenericMethod<NormalThisPolicy, ConvertExceptionsToPromises>), reinterpret_cast<const JSJitInfo*>(&whenDefined_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
  JS_FNSPEC("upgrade", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&upgrade_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
  JS_FS_END
};
#if defined(__clang__)
#pragma clang diagnostic pop
#endif


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

static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
    "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
static_assert(4 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
    "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");

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


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

static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
    "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
static_assert(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[4];
static PropertyInfo sNativeProperties_propertyInfos[4];

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

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

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

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

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

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

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 = {
  { "CustomElementRegistry",
    JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
    &sClassOps,
    JS_NULL_CLASS_SPEC,
    &sClassExtension,
    JS_NULL_OBJECT_OPS
  },
  { prototypes::id::CustomElementRegistry, 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::CustomElementRegistry >::value,
  sNativePropertyHooks,
  FindAssociatedGlobalForNative<mozilla::dom::CustomElementRegistry>::Get,
  GetProtoObjectHandle,
  GetCCParticipant<mozilla::dom::CustomElementRegistry>::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::CustomElementRegistry* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
  static_assert(!IsBaseOf<NonRefcountedDOMObject, mozilla::dom::CustomElementRegistry>::value,
                "Shouldn't have wrappercached things that are not refcounted.");
  MOZ_ASSERT(static_cast<mozilla::dom::CustomElementRegistry*>(aObject) ==
             reinterpret_cast<mozilla::dom::CustomElementRegistry*>(aObject),
             "Multiple inheritance for mozilla::dom::CustomElementRegistry 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::CustomElementRegistry> creator(aCx);
  creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
  if (!aReflector) {
    return false;
  }

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

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

  return true;
}

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

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

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

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

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

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

} // namespace CustomElementRegistry_Binding



} // namespace dom
} // namespace mozilla

Coverage Report

Created: 2018-09-25 14:53