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

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

#include "HTMLAllCollectionBinding.h"
#include "WrapperFactory.h"
#include "mozilla/OwningNonNull.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/DOMJSClass.h"
#include "mozilla/dom/DOMJSProxyHandler.h"
#include "mozilla/dom/HTMLAllCollection.h"
#include "mozilla/dom/NonRefcountedDOMObject.h"
#include "mozilla/dom/Nullable.h"
#include "mozilla/dom/PrimitiveConversions.h"
#include "mozilla/dom/UnionConversions.h"
#include "mozilla/dom/XrayExpandoClass.h"
#include "nsContentList.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;


void
ImplCycleCollectionTraverse(nsCycleCollectionTraversalCallback& aCallback, OwningNodeOrHTMLCollection& aUnion, const char* aName, uint32_t aFlags)
{
  if (aUnion.IsNode()) {
    ImplCycleCollectionTraverse(aCallback, aUnion.GetAsNode(), "mNode", aFlags);
  } else if (aUnion.IsHTMLCollection()) {
    ImplCycleCollectionTraverse(aCallback, aUnion.GetAsHTMLCollection(), "mHTMLCollection", aFlags);
  }
}


void
ImplCycleCollectionUnlink(OwningNodeOrHTMLCollection& aUnion)
{
  aUnion.Uninit();
}


bool
NodeOrHTMLCollection::ToJSVal(JSContext* cx, JS::Handle<JSObject*> scopeObj, JS::MutableHandle<JS::Value> rval) const
{
  switch (mType) {
    case eUninitialized: {
      return false;
      break;
    }
    case eNode: {
      if (!GetOrCreateDOMReflector(cx, mValue.mNode.Value(), rval)) {
        MOZ_ASSERT(JS_IsExceptionPending(cx));
        return false;
      }
      return true;
      break;
    }
    case eHTMLCollection: {
      if (!GetOrCreateDOMReflector(cx, mValue.mHTMLCollection.Value(), rval)) {
        MOZ_ASSERT(JS_IsExceptionPending(cx));
        return false;
      }
      return true;
      break;
    }
    default: {
      return false;
      break;
    }
  }

  return false;
}


OwningNonNull<nsINode>&
OwningNodeOrHTMLCollection::RawSetAsNode()
{
  if (mType == eNode) {
    return mValue.mNode.Value();
  }
  MOZ_ASSERT(mType == eUninitialized);
  mType = eNode;
  return mValue.mNode.SetValue();
}

OwningNonNull<nsINode>&
OwningNodeOrHTMLCollection::SetAsNode()
{
  if (mType == eNode) {
    return mValue.mNode.Value();
  }
  Uninit();
  mType = eNode;
  return mValue.mNode.SetValue();
}

bool
OwningNodeOrHTMLCollection::TrySetToNode(JSContext* cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
  tryNext = false;
  { // scope for memberSlot
    OwningNonNull<nsINode>& memberSlot = RawSetAsNode();
    static_assert(IsRefcounted<nsINode>::value, "We can only store refcounted classes.");{
      nsresult rv = UnwrapObject<prototypes::id::Node, nsINode>(value, memberSlot);
      if (NS_FAILED(rv)) {
        DestroyNode();
        tryNext = true;
        return true;
      }
    }
  }
  return true;
}

void
OwningNodeOrHTMLCollection::DestroyNode()
{
  MOZ_ASSERT(IsNode(), "Wrong type!");
  mValue.mNode.Destroy();
  mType = eUninitialized;
}




OwningNonNull<nsIHTMLCollection>&
OwningNodeOrHTMLCollection::RawSetAsHTMLCollection()
{
  if (mType == eHTMLCollection) {
    return mValue.mHTMLCollection.Value();
  }
  MOZ_ASSERT(mType == eUninitialized);
  mType = eHTMLCollection;
  return mValue.mHTMLCollection.SetValue();
}

OwningNonNull<nsIHTMLCollection>&
OwningNodeOrHTMLCollection::SetAsHTMLCollection()
{
  if (mType == eHTMLCollection) {
    return mValue.mHTMLCollection.Value();
  }
  Uninit();
  mType = eHTMLCollection;
  return mValue.mHTMLCollection.SetValue();
}

bool
OwningNodeOrHTMLCollection::TrySetToHTMLCollection(JSContext* cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
  tryNext = false;
  { // scope for memberSlot
    OwningNonNull<nsIHTMLCollection>& memberSlot = RawSetAsHTMLCollection();
    static_assert(IsRefcounted<nsIHTMLCollection>::value, "We can only store refcounted classes.");{
      nsresult rv = UnwrapObject<prototypes::id::HTMLCollection, nsIHTMLCollection>(value, memberSlot);
      if (NS_FAILED(rv)) {
        DestroyHTMLCollection();
        tryNext = true;
        return true;
      }
    }
  }
  return true;
}

void
OwningNodeOrHTMLCollection::DestroyHTMLCollection()
{
  MOZ_ASSERT(IsHTMLCollection(), "Wrong type!");
  mValue.mHTMLCollection.Destroy();
  mType = eUninitialized;
}




void
OwningNodeOrHTMLCollection::Uninit()
{
  switch (mType) {
    case eUninitialized: {
      break;
    }
    case eNode: {
      DestroyNode();
      break;
    }
    case eHTMLCollection: {
      DestroyHTMLCollection();
      break;
    }
  }
}

bool
OwningNodeOrHTMLCollection::ToJSVal(JSContext* cx, JS::Handle<JSObject*> scopeObj, JS::MutableHandle<JS::Value> rval) const
{
  switch (mType) {
    case eUninitialized: {
      return false;
      break;
    }
    case eNode: {
      if (!GetOrCreateDOMReflector(cx, mValue.mNode.Value(), rval)) {
        MOZ_ASSERT(JS_IsExceptionPending(cx));
        return false;
      }
      return true;
      break;
    }
    case eHTMLCollection: {
      if (!GetOrCreateDOMReflector(cx, mValue.mHTMLCollection.Value(), rval)) {
        MOZ_ASSERT(JS_IsExceptionPending(cx));
        return false;
      }
      return true;
      break;
    }
    default: {
      return false;
      break;
    }
  }

  return false;
}

void
OwningNodeOrHTMLCollection::TraceUnion(JSTracer* trc)
{
}

OwningNodeOrHTMLCollection&
OwningNodeOrHTMLCollection::operator=(const OwningNodeOrHTMLCollection& aOther)
{
  switch (aOther.mType) {
    case eUninitialized: {
      MOZ_ASSERT(mType == eUninitialized,
                 "We need to destroy ourselves?");
      break;
    }
    case eNode: {
      SetAsNode() = aOther.GetAsNode();
      break;
    }
    case eHTMLCollection: {
      SetAsHTMLCollection() = aOther.GetAsHTMLCollection();
      break;
    }
  }
  return *this;
}


namespace HTMLAllCollection_Binding {

MOZ_CAN_RUN_SCRIPT static bool
get_length(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLAllCollection* self, JSJitGetterCallArgs args)
{
  AUTO_PROFILER_LABEL_FAST("get HTMLAllCollection.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::HTMLAllCollection },
  { PrototypeTraits<prototypes::id::HTMLAllCollection>::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::HTMLAllCollection* self, const JSJitMethodCallArgs& args)
{
  AUTO_PROFILER_LABEL_FAST("HTMLAllCollection.item", DOM, cx);

  unsigned argcount = std::min(args.length(), 1u);
  switch (argcount) {
    case 1: {
      if (args[0].isNumber()) {
        uint32_t arg0;
        if (!ValueToPrimitive<uint32_t, eDefault>(cx, args[0], &arg0)) {
          return false;
        }
        auto result(StrongOrRawPtr<nsINode>(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;
      }
      binding_detail::FakeString arg0;
      if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
        return false;
      }
      Nullable<OwningNodeOrHTMLCollection> result;
      self->Item(NonNullHelper(Constify(arg0)), result);
      MOZ_ASSERT(!JS_IsExceptionPending(cx));
      if (result.IsNull()) {
        args.rval().setNull();
        return true;
      }
      if (!result.Value().ToJSVal(cx, obj, args.rval())) {
        return false;
      }
      return true;
      break;
    }
    default: {
      return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "HTMLAllCollection.item");
      break;
    }
  }
  MOZ_CRASH("We have an always-returning default case");
  return false;
}

static const JSJitInfo item_methodinfo = {
  { (JSJitGetterOp)item },
  { prototypes::id::HTMLAllCollection },
  { PrototypeTraits<prototypes::id::HTMLAllCollection>::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
namedItem(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLAllCollection* self, const JSJitMethodCallArgs& args)
{
  AUTO_PROFILER_LABEL_FAST("HTMLAllCollection.namedItem", DOM, cx);

  if (MOZ_UNLIKELY(args.length() < 1)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "HTMLAllCollection.namedItem");
  }
  binding_detail::FakeString arg0;
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
    return false;
  }
  Nullable<OwningNodeOrHTMLCollection> result;
  self->NamedItem(NonNullHelper(Constify(arg0)), result);
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (result.IsNull()) {
    args.rval().setNull();
    return true;
  }
  if (!result.Value().ToJSVal(cx, obj, args.rval())) {
    return false;
  }
  return true;
}

static const JSJitInfo namedItem_methodinfo = {
  { (JSJitGetterOp)namedItem },
  { prototypes::id::HTMLAllCollection },
  { PrototypeTraits<prototypes::id::HTMLAllCollection>::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_FNSPEC("namedItem", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&namedItem_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(3 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
    "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");

// We deliberately use brace-elision to make Visual Studio produce better initalization code.
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wmissing-braces"
#endif
static const JSPropertySpec sAttributes_specs[] = {
  { "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[4];
static PropertyInfo sNativeProperties_propertyInfos[4];

static const NativePropertiesN<2> sNativeProperties = {
  false, 0,
  false, 0,
  true,  0 /* sMethods */,
  true,  1 /* sAttributes */,
  false, 0,
  false, 0,
  false, 0,
  -1,
  4,
  sNativeProperties_sortedPropertyIndices,
  {
    { sMethods, &sNativeProperties_propertyInfos[0] },
    { sAttributes, &sNativeProperties_propertyInfos[3] }
  }
};
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::HTMLAllCollection,
  PrototypeTraits<prototypes::id::HTMLAllCollection>::Depth,
  sNativePropertyHooks,
  "function HTMLAllCollection() {\n    [native code]\n}",
  JS::GetRealmFunctionPrototype
};

static bool
_legacycaller(JSContext* cx, unsigned argc, JS::Value* vp)
{
  JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
  JS::Rooted<JSObject*> obj(cx, &args.callee());

  mozilla::dom::HTMLAllCollection* self;
  JS::Rooted<JS::Value> rootSelf(cx, JS::ObjectValue(*obj));
  {
    nsresult rv = UnwrapObject<prototypes::id::HTMLAllCollection, mozilla::dom::HTMLAllCollection>(&rootSelf, self);
    if (NS_FAILED(rv)) {
      return ThrowErrorMessage(cx, MSG_THIS_DOES_NOT_IMPLEMENT_INTERFACE, "Value", "HTMLAllCollection");
    }
  }
  if (MOZ_UNLIKELY(args.length() < 1)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "HTMLAllCollection.__legacycaller");
  }
  binding_detail::FakeString arg0;
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
    return false;
  }
  Nullable<OwningNodeOrHTMLCollection> result;
  self->LegacyCall(args.thisv(), NonNullHelper(Constify(arg0)), result);
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (result.IsNull()) {
    args.rval().setNull();
    return true;
  }
  if (!result.Value().ToJSVal(cx, obj, args.rval())) {
    return false;
  }
  return true;
}

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

static_assert(IsBaseOf<nsISupports, mozilla::dom::HTMLAllCollection >::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 bool
  call(JSContext* cx, JS::Handle<JSObject*> proxy, const JS::CallArgs& args) const override;

  virtual bool
  isCallable(JSObject* obj) 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::HTMLAllCollection*
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::HTMLAllCollection*>(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::HTMLAllCollection* self = UnwrapProxy(proxy);
    bool found = false;
    auto result(StrongOrRawPtr<nsINode>(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;
    }
  }

  bool callNamedGetter = false;
  if (!IsArrayIndex(index) && !ignoreNamedProps) {
    bool hasOnProto;
    if (!HasPropertyOnPrototype(cx, proxy, id, &hasOnProto)) {
      return false;
    }
    callNamedGetter = !hasOnProto;
  }
  if (callNamedGetter) {
    FakeString name;
    bool isSymbol;
    if (!ConvertIdToString(cx, id, name, isSymbol)) {
      return false;
    }
    if (!isSymbol) {
      mozilla::dom::HTMLAllCollection* self = UnwrapProxy(proxy);
      bool found = false;
      Nullable<OwningNodeOrHTMLCollection> result;
      self->NamedGetter(NonNullHelper(Constify(name)), found, result);
      MOZ_ASSERT(!JS_IsExceptionPending(cx));

      if (found) {
        if (result.IsNull()) {
          desc.value().setNull();
          FillPropertyDescriptor(desc, proxy, true, false);
          return true;
        }
        if (!result.Value().ToJSVal(cx, proxy, desc.value())) {
          return false;
        }
        FillPropertyDescriptor(desc, proxy, true, false);
        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();
  }
  bool found = false;
  FakeString name;
  bool isSymbol;
  if (!ConvertIdToString(cx, id, name, isSymbol)) {
    return false;
  }
  if (!isSymbol) {
    mozilla::dom::HTMLAllCollection* self = UnwrapProxy(proxy);
    Nullable<OwningNodeOrHTMLCollection> result;
    self->NamedGetter(NonNullHelper(Constify(name)), found, result);
    MOZ_ASSERT(!JS_IsExceptionPending(cx));
    (void)result;
  }

  if (found) {
    *defined = true;
    return opresult.failNoNamedSetter();
  }
  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;
    }
  }

  if (flags & JSITER_HIDDEN) {
    nsTArray<nsString> names;
    UnwrapProxy(proxy)->GetSupportedNames(names);
    if (!AppendNamedPropertyIds(cx, proxy, names, false, props)) {
      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::HTMLAllCollection* self = UnwrapProxy(proxy);
    auto result(StrongOrRawPtr<nsINode>(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;
    }
  }

  bool hasOnProto;
  if (!HasPropertyOnPrototype(cx, proxy, id, &hasOnProto)) {
    return false;
  }
  if (!hasOnProto) {
    bool found = false;
    FakeString name;
    bool isSymbol;
    if (!ConvertIdToString(cx, id, name, isSymbol)) {
      return false;
    }
    if (!isSymbol) {
      mozilla::dom::HTMLAllCollection* self = UnwrapProxy(proxy);
      Nullable<OwningNodeOrHTMLCollection> result;
      self->NamedGetter(NonNullHelper(Constify(name)), found, result);
      MOZ_ASSERT(!JS_IsExceptionPending(cx));
      (void)result;
    }

    *bp = found;
    return true;
  }
  *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::HTMLAllCollection* self = UnwrapProxy(proxy);
    bool found = false;
    auto result(StrongOrRawPtr<nsINode>(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;
  }

  if (!IsArrayIndex(index)) {
    FakeString name;
    bool isSymbol;
    if (!ConvertIdToString(cx, id, name, isSymbol)) {
      return false;
    }
    if (!isSymbol) {
      mozilla::dom::HTMLAllCollection* self = UnwrapProxy(proxy);
      bool found = false;
      Nullable<OwningNodeOrHTMLCollection> result;
      self->NamedGetter(NonNullHelper(Constify(name)), found, result);
      MOZ_ASSERT(!JS_IsExceptionPending(cx));

      if (found) {
        if (result.IsNull()) {
          vp.setNull();
          return true;
        }
        if (!result.Value().ToJSVal(cx, proxy, vp)) {
          return false;
        }
        return true;
      }
    }
  }

  vp.setUndefined();
  return true;
}

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

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

void
DOMProxyHandler::finalize(JSFreeOp* fop, JSObject* proxy) const
{
  mozilla::dom::HTMLAllCollection* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::HTMLAllCollection>(proxy);
  if (self) {
    ClearWrapper(self, self, proxy);
    AddForDeferredFinalization<mozilla::dom::HTMLAllCollection>(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::HTMLAllCollection* self = UnwrapProxy(proxy);
    auto result(StrongOrRawPtr<nsINode>(self->IndexedGetter(index, found)));
    MOZ_ASSERT(!JS_IsExceptionPending(cx));
    (void)result;
    deleteSucceeded = !found;
    return deleteSucceeded ? opresult.succeed() : opresult.failCantDelete();
  }
  // Try named delete only if the named property visibility
  // algorithm says the property is visible.
  bool tryNamedDelete = true;
  { // Scope for expando
    JS::Rooted<JSObject*> expando(cx, DOMProxyHandler::GetExpandoObject(proxy));
    if (expando) {
      bool hasProp;
      if (!JS_HasPropertyById(cx, expando, id, &hasProp)) {
        return false;
      }
      tryNamedDelete = !hasProp;
    }
  }
  if (tryNamedDelete) {
    bool hasOnProto;
    if (!HasPropertyOnPrototype(cx, proxy, id, &hasOnProto)) {
      return false;
    }
    tryNamedDelete = !hasOnProto;
  }
  if (tryNamedDelete) {
    bool found = false;
    bool deleteSucceeded;
    FakeString name;
    bool isSymbol;
    if (!ConvertIdToString(cx, id, name, isSymbol)) {
      return false;
    }
    if (!isSymbol) {
      mozilla::dom::HTMLAllCollection* self = UnwrapProxy(proxy);
      Nullable<OwningNodeOrHTMLCollection> result;
      self->NamedGetter(NonNullHelper(Constify(name)), found, result);
      MOZ_ASSERT(!JS_IsExceptionPending(cx));
      (void)result;
    }
    deleteSucceeded = !found;
    if (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::HTMLAllCollection* 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<nsINode>(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;
}

bool
DOMProxyHandler::call(JSContext* cx, JS::Handle<JSObject*> proxy, const JS::CallArgs& args) const
{
  return js::ForwardToNative(cx, _legacycaller, args);
}

bool
DOMProxyHandler::isCallable(JSObject* obj) const
{
  return true;
}

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

  return 0;
}

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

bool
Wrap(JSContext* aCx, mozilla::dom::HTMLAllCollection* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
  static_assert(!IsBaseOf<NonRefcountedDOMObject, mozilla::dom::HTMLAllCollection>::value,
                "Shouldn't have wrappercached things that are not refcounted.");
  MOZ_ASSERT(static_cast<mozilla::dom::HTMLAllCollection*>(aObject) ==
             reinterpret_cast<mozilla::dom::HTMLAllCollection*>(aObject),
             "Multiple inheritance for mozilla::dom::HTMLAllCollection 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::HTMLAllCollection> 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::HTMLAllCollection,
  constructors::id::HTMLAllCollection,
  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::HTMLAllCollection);
  JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::HTMLAllCollection);
  dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
                              &sPrototypeClass.mBase, protoCache,
                              nullptr,
                              constructorProto, &sInterfaceObjectClass.mBase, 0, nullptr,
                              interfaceCache,
                              sNativeProperties.Upcast(),
                              nullptr,
                              "HTMLAllCollection", aDefineOnGlobal,
                              nullptr,
                              false);
}

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

} // namespace HTMLAllCollection_Binding



} // namespace dom
} // namespace mozilla

Coverage Report

Created: 2018-09-25 14:53