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/* THIS FILE IS AUTOGENERATED FROM MutationObserver.webidl BY Codegen.py - DO NOT EDIT */
#include <type_traits>
#include "AtomList.h"
#include "MainThreadUtils.h"
#include "MutationObserverBinding.h"
#include "WrapperFactory.h"
#include "XrayWrapper.h"
#include "js/Array.h"
#include "js/CallAndConstruct.h"
#include "js/Exception.h"
#include "js/ForOfIterator.h"
#include "js/MapAndSet.h"
#include "js/Object.h"
#include "js/PropertyAndElement.h"
#include "js/PropertyDescriptor.h"
#include "js/experimental/JitInfo.h"
#include "mozilla/Atomics.h"
#include "mozilla/BasePrincipal.h"
#include "mozilla/OwningNonNull.h"
#include "mozilla/ProfilerLabels.h"
#include "mozilla/dom/Animation.h"
#include "mozilla/dom/BindingCallContext.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/DOMJSClass.h"
#include "mozilla/dom/NonRefcountedDOMObject.h"
#include "mozilla/dom/Nullable.h"
#include "mozilla/dom/PrimitiveConversions.h"
#include "mozilla/dom/ScriptSettings.h"
#include "mozilla/dom/SimpleGlobalObject.h"
#include "mozilla/dom/XrayExpandoClass.h"
#include "nsContentUtils.h"
#include "nsDOMMutationObserver.h"
#include "nsIContent.h"
#include "nsINodeList.h"
#include "nsJSPrincipals.h"
namespace mozilla::dom {
namespace binding_detail {}; // Just to make sure it's known as a namespace
using namespace mozilla::dom::binding_detail;
MOZ_CAN_RUN_SCRIPT void
MutationCallback::Call(BindingCallContext& cx, JS::Handle<JS::Value> aThisVal, const Sequence<OwningNonNull<nsDOMMutationRecord>>& mutations, nsDOMMutationObserver& observer, ErrorResult& aRv)
{
JS::Rooted<JS::Value> rval(cx);
JS::RootedVector<JS::Value> argv(cx);
if (!argv.resize(2)) {
// That threw an exception on the JSContext, and our CallSetup will do
// the right thing with that.
return;
}
unsigned argc = 2;
do {
if (!GetOrCreateDOMReflector(cx, observer, argv[1])) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
aRv.Throw(NS_ERROR_UNEXPECTED);
return;
}
break;
} while (false);
do {
uint32_t length = mutations.Length();
JS::Rooted<JSObject*> returnArray(cx, JS::NewArrayObject(cx, length));
if (!returnArray) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return;
}
// 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, mutations[sequenceIdx0], &tmp)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
aRv.Throw(NS_ERROR_UNEXPECTED);
return;
}
break;
} while (false);
if (!JS_DefineElement(cx, returnArray, sequenceIdx0, tmp,
JSPROP_ENUMERATE)) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return;
}
}
}
argv[0].setObject(*returnArray);
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;
}
}
MutationObserverInit::MutationObserverInit()
{
// Safe to pass a null context if we pass a null value
Init(nullptr, JS::NullHandleValue);
}
bool
MutationObserverInit::InitIds(JSContext* cx, MutationObserverInitAtoms* atomsCache)
{
MOZ_ASSERT(reinterpret_cast<jsid*>(atomsCache)->isVoid());
// Initialize these in reverse order so that any failure leaves the first one
// uninitialized.
if (!atomsCache->subtree_id.init(cx, "subtree") ||
!atomsCache->chromeOnlyNodes_id.init(cx, "chromeOnlyNodes") ||
!atomsCache->childList_id.init(cx, "childList") ||
!atomsCache->characterDataOldValue_id.init(cx, "characterDataOldValue") ||
!atomsCache->characterData_id.init(cx, "characterData") ||
!atomsCache->attributes_id.init(cx, "attributes") ||
!atomsCache->attributeOldValue_id.init(cx, "attributeOldValue") ||
!atomsCache->attributeFilter_id.init(cx, "attributeFilter") ||
!atomsCache->animations_id.init(cx, "animations")) {
return false;
}
return true;
}
bool
MutationObserverInit::Init(BindingCallContext& 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());
MutationObserverInitAtoms* atomsCache = nullptr;
if (cx) {
atomsCache = GetAtomCache<MutationObserverInitAtoms>(cx);
if (reinterpret_cast<jsid*>(atomsCache)->isVoid() &&
!InitIds(cx, atomsCache)) {
return false;
}
}
if (!IsConvertibleToDictionary(val)) {
return cx.ThrowErrorMessage<MSG_CONVERSION_ERROR>(sourceDescription, "dictionary");
}
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 (nsContentUtils::ThreadsafeIsSystemCaller(cx)) {
if (!JS_GetPropertyById(cx, *object, atomsCache->animations_id, temp.ptr())) {
return false;
}
} else {
temp->setUndefined();
}
}
if (!isNull && !temp->isUndefined()) {
if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), "'animations' member of MutationObserverInit", &mAnimations)) {
return false;
}
} else {
mAnimations = false;
}
mIsAnyMemberPresent = true;
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->attributeFilter_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
mAttributeFilter.Construct();
if (temp.ref().isObject()) {
JS::ForOfIterator iter(cx);
if (!iter.init(temp.ref(), JS::ForOfIterator::AllowNonIterable)) {
return false;
}
if (!iter.valueIsIterable()) {
cx.ThrowErrorMessage<MSG_CONVERSION_ERROR>("'attributeFilter' member of MutationObserverInit", "sequence");
return false;
}
Sequence<nsString> &arr = (mAttributeFilter.Value());
JS::Rooted<JS::Value> temp(cx);
while (true) {
bool done;
if (!iter.next(&temp, &done)) {
return false;
}
if (done) {
break;
}
nsString* slotPtr = arr.AppendElement(mozilla::fallible);
if (!slotPtr) {
JS_ReportOutOfMemory(cx);
return false;
}
nsString& slot = *slotPtr;
if (!ConvertJSValueToString(cx, temp, eStringify, eStringify, slot)) {
return false;
}
}
} else {
cx.ThrowErrorMessage<MSG_CONVERSION_ERROR>("'attributeFilter' member of MutationObserverInit", "sequence");
return false;
}
mIsAnyMemberPresent = true;
}
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->attributeOldValue_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
mAttributeOldValue.Construct();
if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), "'attributeOldValue' member of MutationObserverInit", &(mAttributeOldValue.Value()))) {
return false;
}
mIsAnyMemberPresent = true;
}
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->attributes_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
mAttributes.Construct();
if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), "'attributes' member of MutationObserverInit", &(mAttributes.Value()))) {
return false;
}
mIsAnyMemberPresent = true;
}
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->characterData_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
mCharacterData.Construct();
if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), "'characterData' member of MutationObserverInit", &(mCharacterData.Value()))) {
return false;
}
mIsAnyMemberPresent = true;
}
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->characterDataOldValue_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
mCharacterDataOldValue.Construct();
if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), "'characterDataOldValue' member of MutationObserverInit", &(mCharacterDataOldValue.Value()))) {
return false;
}
mIsAnyMemberPresent = true;
}
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->childList_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), "'childList' member of MutationObserverInit", &mChildList)) {
return false;
}
} else {
mChildList = false;
}
mIsAnyMemberPresent = true;
if (!isNull) {
if (nsContentUtils::ThreadsafeIsSystemCaller(cx)) {
if (!JS_GetPropertyById(cx, *object, atomsCache->chromeOnlyNodes_id, temp.ptr())) {
return false;
}
} else {
temp->setUndefined();
}
}
if (!isNull && !temp->isUndefined()) {
if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), "'chromeOnlyNodes' member of MutationObserverInit", &mChromeOnlyNodes)) {
return false;
}
} else {
mChromeOnlyNodes = false;
}
mIsAnyMemberPresent = true;
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->subtree_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), "'subtree' member of MutationObserverInit", &mSubtree)) {
return false;
}
} else {
mSubtree = false;
}
mIsAnyMemberPresent = true;
return true;
}
bool
MutationObserverInit::Init(JSContext* cx_, JS::Handle<JS::Value> val, const char* sourceDescription, bool passedToJSImpl)
{
// We don't want to use sourceDescription for our context here;
// that's not really what it's formatted for.
BindingCallContext cx(cx_, nullptr);
return Init(cx, val, sourceDescription, passedToJSImpl);
}
bool
MutationObserverInit::ToObjectInternal(JSContext* cx, JS::MutableHandle<JS::Value> rval) const
{
MutationObserverInitAtoms* atomsCache = GetAtomCache<MutationObserverInitAtoms>(cx);
if (reinterpret_cast<jsid*>(atomsCache)->isVoid() &&
!InitIds(cx, atomsCache)) {
return false;
}
JS::Rooted<JSObject*> obj(cx, JS_NewPlainObject(cx));
if (!obj) {
return false;
}
rval.set(JS::ObjectValue(*obj));
if (nsContentUtils::ThreadsafeIsSystemCaller(cx)) {
do {
// block for our 'break' successCode and scope for 'temp' and 'currentValue'
JS::Rooted<JS::Value> temp(cx);
bool const & currentValue = mAnimations;
temp.setBoolean(currentValue);
if (!JS_DefinePropertyById(cx, obj, atomsCache->animations_id, temp, JSPROP_ENUMERATE)) {
return false;
}
break;
} while(false);
}
if (mAttributeFilter.WasPassed()) {
do {
// block for our 'break' successCode and scope for 'temp' and 'currentValue'
JS::Rooted<JS::Value> temp(cx);
Sequence<nsString> const & currentValue = mAttributeFilter.InternalValue();
uint32_t length = currentValue.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, currentValue[sequenceIdx0], &tmp)) {
return false;
}
break;
} while (false);
if (!JS_DefineElement(cx, returnArray, sequenceIdx0, tmp,
JSPROP_ENUMERATE)) {
return false;
}
}
}
temp.setObject(*returnArray);
if (!JS_DefinePropertyById(cx, obj, atomsCache->attributeFilter_id, temp, JSPROP_ENUMERATE)) {
return false;
}
break;
} while(false);
}
if (mAttributeOldValue.WasPassed()) {
do {
// block for our 'break' successCode and scope for 'temp' and 'currentValue'
JS::Rooted<JS::Value> temp(cx);
bool const & currentValue = mAttributeOldValue.InternalValue();
temp.setBoolean(currentValue);
if (!JS_DefinePropertyById(cx, obj, atomsCache->attributeOldValue_id, temp, JSPROP_ENUMERATE)) {
return false;
}
break;
} while(false);
}
if (mAttributes.WasPassed()) {
do {
// block for our 'break' successCode and scope for 'temp' and 'currentValue'
JS::Rooted<JS::Value> temp(cx);
bool const & currentValue = mAttributes.InternalValue();
temp.setBoolean(currentValue);
if (!JS_DefinePropertyById(cx, obj, atomsCache->attributes_id, temp, JSPROP_ENUMERATE)) {
return false;
}
break;
} while(false);
}
if (mCharacterData.WasPassed()) {
do {
// block for our 'break' successCode and scope for 'temp' and 'currentValue'
JS::Rooted<JS::Value> temp(cx);
bool const & currentValue = mCharacterData.InternalValue();
temp.setBoolean(currentValue);
if (!JS_DefinePropertyById(cx, obj, atomsCache->characterData_id, temp, JSPROP_ENUMERATE)) {
return false;
}
break;
} while(false);
}
if (mCharacterDataOldValue.WasPassed()) {
do {
// block for our 'break' successCode and scope for 'temp' and 'currentValue'
JS::Rooted<JS::Value> temp(cx);
bool const & currentValue = mCharacterDataOldValue.InternalValue();
temp.setBoolean(currentValue);
if (!JS_DefinePropertyById(cx, obj, atomsCache->characterDataOldValue_id, temp, JSPROP_ENUMERATE)) {
return false;
}
break;
} while(false);
}
do {
// block for our 'break' successCode and scope for 'temp' and 'currentValue'
JS::Rooted<JS::Value> temp(cx);
bool const & currentValue = mChildList;
temp.setBoolean(currentValue);
if (!JS_DefinePropertyById(cx, obj, atomsCache->childList_id, temp, JSPROP_ENUMERATE)) {
return false;
}
break;
} while(false);
if (nsContentUtils::ThreadsafeIsSystemCaller(cx)) {
do {
// block for our 'break' successCode and scope for 'temp' and 'currentValue'
JS::Rooted<JS::Value> temp(cx);
bool const & currentValue = mChromeOnlyNodes;
temp.setBoolean(currentValue);
if (!JS_DefinePropertyById(cx, obj, atomsCache->chromeOnlyNodes_id, temp, JSPROP_ENUMERATE)) {
return false;
}
break;
} while(false);
}
do {
// block for our 'break' successCode and scope for 'temp' and 'currentValue'
JS::Rooted<JS::Value> temp(cx);
bool const & currentValue = mSubtree;
temp.setBoolean(currentValue);
if (!JS_DefinePropertyById(cx, obj, atomsCache->subtree_id, temp, JSPROP_ENUMERATE)) {
return false;
}
break;
} while(false);
return true;
}
void
MutationObserverInit::TraceDictionary(JSTracer* trc)
{
}
MutationObserverInit&
MutationObserverInit::operator=(const MutationObserverInit& aOther)
{
DictionaryBase::operator=(aOther);
mAnimations = aOther.mAnimations;
mAttributeFilter.Reset();
if (aOther.mAttributeFilter.WasPassed()) {
mAttributeFilter.Construct(aOther.mAttributeFilter.Value());
}
mAttributeOldValue.Reset();
if (aOther.mAttributeOldValue.WasPassed()) {
mAttributeOldValue.Construct(aOther.mAttributeOldValue.Value());
}
mAttributes.Reset();
if (aOther.mAttributes.WasPassed()) {
mAttributes.Construct(aOther.mAttributes.Value());
}
mCharacterData.Reset();
if (aOther.mCharacterData.WasPassed()) {
mCharacterData.Construct(aOther.mCharacterData.Value());
}
mCharacterDataOldValue.Reset();
if (aOther.mCharacterDataOldValue.WasPassed()) {
mCharacterDataOldValue.Construct(aOther.mCharacterDataOldValue.Value());
}
mChildList = aOther.mChildList;
mChromeOnlyNodes = aOther.mChromeOnlyNodes;
mSubtree = aOther.mSubtree;
return *this;
}
MutationObservingInfo::MutationObservingInfo()
: MutationObserverInit(FastDictionaryInitializer())
{
// Safe to pass a null context if we pass a null value
Init();
}
bool
MutationObservingInfo::InitIds(JSContext* cx, MutationObservingInfoAtoms* atomsCache)
{
MOZ_ASSERT(reinterpret_cast<jsid*>(atomsCache)->isVoid());
// Initialize these in reverse order so that any failure leaves the first one
// uninitialized.
if (!atomsCache->observedNode_id.init(cx, "observedNode")) {
return false;
}
return true;
}
bool
MutationObservingInfo::Init(const char* sourceDescription, bool passedToJSImpl)
{
// We init the parent's members first
if (!MutationObserverInit::Init(nullptr, JS::NullHandleValue)) {
return false;
}
{
// scope for any temporaries our default value setting needs.
mObservedNode = nullptr;
}
mIsAnyMemberPresent = true;
return true;
}
bool
MutationObservingInfo::ToObjectInternal(JSContext* cx, JS::MutableHandle<JS::Value> rval) const
{
MutationObservingInfoAtoms* atomsCache = GetAtomCache<MutationObservingInfoAtoms>(cx);
if (reinterpret_cast<jsid*>(atomsCache)->isVoid() &&
!InitIds(cx, atomsCache)) {
return false;
}
// Per spec, we define the parent's members first
if (!MutationObserverInit::ToObjectInternal(cx, rval)) {
return false;
}
JS::Rooted<JSObject*> obj(cx, &rval.toObject());
do {
// block for our 'break' successCode and scope for 'temp' and 'currentValue'
JS::Rooted<JS::Value> temp(cx);
RefPtr<nsINode> const & currentValue = mObservedNode;
if (!currentValue) {
temp.setNull();
if (!JS_DefinePropertyById(cx, obj, atomsCache->observedNode_id, temp, JSPROP_ENUMERATE)) {
return false;
}
break;
}
if (!GetOrCreateDOMReflector(cx, currentValue, &temp)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
if (!JS_DefinePropertyById(cx, obj, atomsCache->observedNode_id, temp, JSPROP_ENUMERATE)) {
return false;
}
break;
} while(false);
return true;
}
void
MutationObservingInfo::TraceDictionary(JSTracer* trc)
{
MutationObserverInit::TraceDictionary(trc);
}
MutationObservingInfo&
MutationObservingInfo::operator=(const MutationObservingInfo& aOther)
{
MutationObserverInit::operator=(aOther);
mObservedNode = aOther.mObservedNode;
return *this;
}
namespace MutationObserver_Binding {
MOZ_CAN_RUN_SCRIPT static bool
observe(JSContext* cx_, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
BindingCallContext cx(cx_, "MutationObserver.observe");
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationObserver", "observe", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationObserver*>(void_self);
if (!args.requireAtLeast(cx, "MutationObserver.observe", 1)) {
return false;
}
NonNull<nsINode> arg0;
if (args[0].isObject()) {
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::Node, nsINode>(args[0], arg0, cx);
if (NS_FAILED(rv)) {
cx.ThrowErrorMessage<MSG_DOES_NOT_IMPLEMENT_INTERFACE>("Argument 1", "Node");
return false;
}
}
} else {
cx.ThrowErrorMessage<MSG_NOT_OBJECT>("Argument 1");
return false;
}
binding_detail::FastMutationObserverInit arg1;
if (!arg1.Init(cx, (args.hasDefined(1)) ? args[1] : JS::NullHandleValue, "Argument 2", false)) {
return false;
}
FastErrorResult rv;
NonNull<nsIPrincipal> subjectPrincipal;
{
JS::Realm* realm = js::GetContextRealm(cx);
MOZ_ASSERT(realm);
JSPrincipals* principals = JS::GetRealmPrincipals(realm);
nsIPrincipal* principal = nsJSPrincipals::get(principals);
subjectPrincipal = principal;
}
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->Observe(MOZ_KnownLive(NonNullHelper(arg0)), Constify(arg1), MOZ_KnownLive(NonNullHelper(subjectPrincipal)), rv))>, "Should be returning void here");
MOZ_KnownLive(self)->Observe(MOZ_KnownLive(NonNullHelper(arg0)), Constify(arg1), MOZ_KnownLive(NonNullHelper(subjectPrincipal)), rv);
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "MutationObserver.observe"))) {
return false;
}
MOZ_ASSERT(!JS_IsExceptionPending(cx));
args.rval().setUndefined();
return true;
}
static const JSJitInfo observe_methodinfo = {
{ (JSJitGetterOp)observe },
{ prototypes::id::MutationObserver },
{ PrototypeTraits<prototypes::id::MutationObserver>::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. */
};
MOZ_CAN_RUN_SCRIPT static bool
disconnect(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationObserver", "disconnect", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationObserver*>(void_self);
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->Disconnect())>, "Should be returning void here");
MOZ_KnownLive(self)->Disconnect();
MOZ_ASSERT(!JS_IsExceptionPending(cx));
args.rval().setUndefined();
return true;
}
static const JSJitInfo disconnect_methodinfo = {
{ (JSJitGetterOp)disconnect },
{ prototypes::id::MutationObserver },
{ PrototypeTraits<prototypes::id::MutationObserver>::Depth },
JSJitInfo::Method,
JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_UNDEFINED, /* returnType. Not relevant for setters. */
true, /* isInfallible. False in setters. */
false, /* isMovable. Not relevant for setters. */
false, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
takeRecords(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationObserver", "takeRecords", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationObserver*>(void_self);
nsTArray<StrongPtrForMember<nsDOMMutationRecord>> result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->TakeRecords(result))>, "Should be returning void here");
MOZ_KnownLive(self)->TakeRecords(result);
MOZ_ASSERT(!JS_IsExceptionPending(cx));
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);
return true;
}
static const JSJitInfo takeRecords_methodinfo = {
{ (JSJitGetterOp)takeRecords },
{ prototypes::id::MutationObserver },
{ PrototypeTraits<prototypes::id::MutationObserver>::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. */
};
MOZ_CAN_RUN_SCRIPT static bool
getObservingInfo(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationObserver", "getObservingInfo", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationObserver*>(void_self);
FastErrorResult rv;
nsTArray<Nullable<MutationObservingInfo>> result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetObservingInfo(result, rv))>, "Should be returning void here");
MOZ_KnownLive(self)->GetObservingInfo(result, rv);
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "MutationObserver.getObservingInfo"))) {
return false;
}
MOZ_ASSERT(!JS_IsExceptionPending(cx));
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 (result[sequenceIdx0].IsNull()) {
tmp.setNull();
break;
}
if (!result[sequenceIdx0].Value().ToObjectInternal(cx, &tmp)) {
return false;
}
break;
} while (false);
if (!JS_DefineElement(cx, returnArray, sequenceIdx0, tmp,
JSPROP_ENUMERATE)) {
return false;
}
}
}
args.rval().setObject(*returnArray);
return true;
}
static const JSJitInfo getObservingInfo_methodinfo = {
{ (JSJitGetterOp)getObservingInfo },
{ prototypes::id::MutationObserver },
{ PrototypeTraits<prototypes::id::MutationObserver>::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. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_mutationCallback(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationObserver", "mutationCallback", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationObserver*>(void_self);
RefPtr<MutationCallback> result(MOZ_KnownLive(self)->MutationCallback());
MOZ_ASSERT(!JS_IsExceptionPending(cx));
args.rval().setObjectOrNull(GetCallbackFromCallbackObject(cx, result));
if (!MaybeWrapObjectValue(cx, args.rval())) {
return false;
}
return true;
}
static const JSJitInfo mutationCallback_getterinfo = {
{ get_mutationCallback },
{ prototypes::id::MutationObserver },
{ PrototypeTraits<prototypes::id::MutationObserver>::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. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_mergeAttributeRecords(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationObserver", "mergeAttributeRecords", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationObserver*>(void_self);
bool result(MOZ_KnownLive(self)->MergeAttributeRecords());
MOZ_ASSERT(!JS_IsExceptionPending(cx));
args.rval().setBoolean(result);
return true;
}
MOZ_CAN_RUN_SCRIPT static bool
set_mergeAttributeRecords(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitSetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationObserver", "mergeAttributeRecords", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_SETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationObserver*>(void_self);
bool arg0;
if (!ValueToPrimitive<bool, eDefault>(cx, args[0], "Value being assigned", &arg0)) {
return false;
}
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->SetMergeAttributeRecords(arg0))>, "Should be returning void here");
MOZ_KnownLive(self)->SetMergeAttributeRecords(arg0);
MOZ_ASSERT(!JS_IsExceptionPending(cx));
return true;
}
static const JSJitInfo mergeAttributeRecords_getterinfo = {
{ get_mergeAttributeRecords },
{ prototypes::id::MutationObserver },
{ PrototypeTraits<prototypes::id::MutationObserver>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_BOOLEAN, /* 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 const JSJitInfo mergeAttributeRecords_setterinfo = {
{ (JSJitGetterOp)set_mergeAttributeRecords },
{ prototypes::id::MutationObserver },
{ PrototypeTraits<prototypes::id::MutationObserver>::Depth },
JSJitInfo::Setter,
JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_UNDEFINED, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
false, /* isMovable. Not relevant for setters. */
false, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
static bool
_addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
{
nsDOMMutationObserver* self = UnwrapPossiblyNotInitializedDOMObject<nsDOMMutationObserver>(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::GCContext* gcx, JSObject* obj)
{
nsDOMMutationObserver* self = UnwrapPossiblyNotInitializedDOMObject<nsDOMMutationObserver>(obj);
if (self) {
JS::SetReservedSlot(obj, DOM_OBJECT_SLOT, JS::UndefinedValue());
ClearWrapper(self, self, obj);
if (size_t mallocBytes = BindingJSObjectMallocBytes(self)) {
JS::RemoveAssociatedMemory(obj, mallocBytes,
JS::MemoryUse::DOMBinding);
}
AddForDeferredFinalization<nsDOMMutationObserver>(self);
}
}
static nsWrapperCache*
_getWrapperCache(JS::Handle<JSObject*> obj)
{
nsDOMMutationObserver* self = UnwrapPossiblyNotInitializedDOMObject<nsDOMMutationObserver>(obj);
return self;
}
static size_t
_objectMoved(JSObject* obj, JSObject* old)
{
nsDOMMutationObserver* self = UnwrapPossiblyNotInitializedDOMObject<nsDOMMutationObserver>(obj);
if (self) {
UpdateWrapper(self, self, obj, old);
}
return 0;
}
static const JSFunctionSpec sMethods_specs[] = {
JS_FNSPEC("observe", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&observe_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
JS_FNSPEC("disconnect", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&disconnect_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
JS_FNSPEC("takeRecords", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&takeRecords_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
JS_FS_END
};
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)");
static const JSFunctionSpec sChromeMethods_specs[] = {
JS_FNSPEC("getObservingInfo", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&getObservingInfo_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
JS_FS_END
};
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 const JSPropertySpec sChromeAttributes_specs[] = {
JSPropertySpec::nativeAccessors("mutationCallback", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &mutationCallback_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("mergeAttributeRecords", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &mergeAttributeRecords_getterinfo, GenericSetter<NormalThisPolicy>, &mergeAttributeRecords_setterinfo),
JS_PS_END
};
static const Prefable<const JSPropertySpec> sChromeAttributes[] = {
{ nullptr, &sChromeAttributes_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[3];
static PropertyInfo sNativeProperties_propertyInfos[3];
static const NativePropertiesN<1> sNativeProperties = {
false, 0,
false, 0,
true, 0 /* sMethods */,
false, 0,
false, 0,
false, 0,
false, 0,
-1,
3,
sNativeProperties_sortedPropertyIndices,
{
{ sMethods, &sNativeProperties_propertyInfos[0] }
}
};
static_assert(3 < 1ull << (CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount)),
"We have a property info count that is oversized");
static uint16_t sChromeOnlyNativeProperties_sortedPropertyIndices[3];
static PropertyInfo sChromeOnlyNativeProperties_propertyInfos[3];
static const NativePropertiesN<2> sChromeOnlyNativeProperties = {
false, 0,
false, 0,
true, 0 /* sChromeMethods */,
true, 1 /* sChromeAttributes */,
false, 0,
false, 0,
false, 0,
-1,
3,
sChromeOnlyNativeProperties_sortedPropertyIndices,
{
{ sChromeMethods, &sChromeOnlyNativeProperties_propertyInfos[0] },
{ sChromeAttributes, &sChromeOnlyNativeProperties_propertyInfos[1] }
}
};
static_assert(3 < 1ull << (CHAR_BIT * sizeof(sChromeOnlyNativeProperties.propertyInfoCount)),
"We have a property info count that is oversized");
bool sNativePropertiesInited = false;
const NativePropertyHooks sNativePropertyHooks = {
nullptr,
{ sNativeProperties.Upcast(), sChromeOnlyNativeProperties.Upcast(), &sNativePropertiesInited },
prototypes::id::MutationObserver,
constructors::id::MutationObserver,
&DefaultXrayExpandoObjectClass
};
static bool
_constructor(JSContext* cx_, unsigned argc, JS::Value* vp)
{
BindingCallContext cx(cx_, "MutationObserver constructor");
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationObserver", "constructor", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
JS::Rooted<JSObject*> obj(cx, &args.callee());
if (!args.isConstructing()) {
return ThrowConstructorWithoutNew(cx, "MutationObserver");
}
JS::Rooted<JSObject*> desiredProto(cx);
if (!GetDesiredProto(cx, args,
prototypes::id::MutationObserver,
CreateInterfaceObjects,
&desiredProto)) {
return false;
}
if (!args.requireAtLeast(cx, "MutationObserver constructor", 1)) {
return false;
}
GlobalObject global(cx, obj);
if (global.Failed()) {
return false;
}
bool objIsXray = xpc::WrapperFactory::IsXrayWrapper(obj);
RootedCallback<OwningNonNull<binding_detail::FastMutationCallback>> arg0(cx);
if (args[0].isObject()) {
if (JS::IsCallable(&args[0].toObject())) {
{ // scope for tempRoot and tempGlobalRoot if needed
arg0 = new binding_detail::FastMutationCallback(&args[0].toObject(), JS::CurrentGlobalOrNull(cx));
}
} else {
cx.ThrowErrorMessage<MSG_NOT_CALLABLE>("Argument 1");
return false;
}
} else {
cx.ThrowErrorMessage<MSG_NOT_OBJECT>("Argument 1");
return false;
}
Maybe<JSAutoRealm> ar;
if (objIsXray) {
// Since our object is an Xray, we can just CheckedUnwrapStatic:
// we know Xrays have no dynamic unwrap behavior.
obj = js::CheckedUnwrapStatic(obj);
if (!obj) {
return false;
}
ar.emplace(cx, obj);
if (!JS_WrapObject(cx, &desiredProto)) {
return false;
}
}
FastErrorResult rv;
auto result(StrongOrRawPtr<nsDOMMutationObserver>(nsDOMMutationObserver::Constructor(global, MOZ_KnownLive(NonNullHelper(arg0)), rv)));
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "MutationObserver constructor"))) {
return false;
}
MOZ_ASSERT(!JS_IsExceptionPending(cx));
static_assert(!std::is_pointer_v<decltype(result)>,
"NewObject implies that we need to keep the object alive with a strong reference.");
if (!GetOrCreateDOMReflector(cx, result, args.rval(), desiredProto)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
static const DOMInterfaceInfo sInterfaceObjectInfo = {
{ _constructor, &sNativePropertyHooks },
JS::GetRealmFunctionPrototype,
prototypes::id::MutationObserver,
PrototypeTraits<prototypes::id::MutationObserver>::Depth,
true,
};
static const DOMIfaceAndProtoJSClass sPrototypeClass = {
{
"MutationObserverPrototype",
JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),
JS_NULL_CLASS_OPS,
JS_NULL_CLASS_SPEC,
JS_NULL_CLASS_EXT,
JS_NULL_OBJECT_OPS
},
eInterfacePrototype,
prototypes::id::MutationObserver,
PrototypeTraits<prototypes::id::MutationObserver>::Depth,
&sNativePropertyHooks,
JS::GetRealmObjectPrototype
};
static const JSClassOps sClassOps = {
_addProperty, /* addProperty */
nullptr, /* delProperty */
nullptr, /* enumerate */
nullptr, /* newEnumerate */
nullptr, /* resolve */
nullptr, /* mayResolve */
_finalize, /* finalize */
nullptr, /* call */
nullptr, /* construct */
nullptr, /* trace */
};
static const js::ClassExtension sClassExtension = {
_objectMoved /* objectMovedOp */
};
static const DOMJSClass sClass = {
{ "MutationObserver",
JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
&sClassOps,
JS_NULL_CLASS_SPEC,
&sClassExtension,
JS_NULL_OBJECT_OPS
},
{ prototypes::id::MutationObserver, 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 },
std::is_base_of_v<nsISupports, nsDOMMutationObserver>,
&sNativePropertyHooks,
FindAssociatedGlobalForNative<nsDOMMutationObserver>::Get,
GetProtoObjectHandle,
GetCCParticipant<nsDOMMutationObserver>::Get(),
nullptr,
_getWrapperCache
};
static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
"Must have the right minimal number of reserved slots.");
static_assert(1 >= 1,
"Must have enough reserved slots.");
bool
Wrap(JSContext* aCx, nsDOMMutationObserver* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
static_assert(!std::is_base_of_v<NonRefcountedDOMObject, nsDOMMutationObserver>,
"Shouldn't have wrappercached things that are not refcounted.");
static_assert(std::is_same_v<decltype(aObject), nsDOMMutationObserver*>);
MOZ_ASSERT(ToSupportsIsCorrect(aObject));
MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
MOZ_ASSERT(!aCache->GetWrapper(),
"You should probably not be using Wrap() directly; use "
"GetOrCreateDOMReflector instead");
MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
"nsISupports must be on our primary inheritance chain");
// If the wrapper cache contains a dead reflector then finalize that
// now, ensuring that the finalizer for the old reflector always
// runs before the new reflector is created and attached. This
// avoids the awkward situation where there are multiple reflector
// objects that contain pointers to the same native.
if (JSObject* oldReflector = aCache->GetWrapperMaybeDead()) {
_finalize(nullptr /* unused */, oldReflector);
MOZ_ASSERT(!aCache->GetWrapperMaybeDead());
}
JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
if (!global) {
return false;
}
MOZ_ASSERT(JS_IsGlobalObject(global));
JS::AssertObjectIsNotGray(global);
// That might have ended up wrapping us already, due to the wonders
// of XBL. Check for that, and bail out as needed.
aReflector.set(aCache->GetWrapper());
if (aReflector) {
#ifdef DEBUG
AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
#endif // DEBUG
return true;
}
JSAutoRealm ar(aCx, global);
JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
if (!canonicalProto) {
return false;
}
JS::Rooted<JSObject*> proto(aCx);
if (aGivenProto) {
proto = aGivenProto;
// Unfortunately, while aGivenProto was in the compartment of aCx
// coming in, we changed compartments to that of "parent" so may need
// to wrap the proto here.
if (js::GetContextCompartment(aCx) != JS::GetCompartment(proto)) {
if (!JS_WrapObject(aCx, &proto)) {
return false;
}
}
} else {
proto = canonicalProto;
}
BindingJSObjectCreator<nsDOMMutationObserver> creator(aCx);
creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
if (!aReflector) {
return false;
}
aCache->SetWrapper(aReflector);
creator.InitializationSucceeded();
MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
aCache->GetWrapperPreserveColor() == aReflector);
// If proto != canonicalProto, we have to preserve our wrapper;
// otherwise we won't be able to properly recreate it later, since
// we won't know what proto to use. Note that we don't check
// aGivenProto here, since it's entirely possible (and even
// somewhat common) to have a non-null aGivenProto which is the
// same as canonicalProto.
if (proto != canonicalProto) {
PreserveWrapper(aObject);
}
return true;
}
void
CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
{
JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::MutationObserver);
JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::MutationObserver);
JS::Rooted<JSObject*> parentProto(aCx, JS::GetRealmObjectPrototype(aCx));
if (!parentProto) {
return;
}
JS::Rooted<JSObject*> constructorProto(aCx, JS::GetRealmFunctionPrototype(aCx));
if (!constructorProto) {
return;
}
dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
&sPrototypeClass, protoCache,
constructorProto, &sInterfaceObjectInfo, 1, false, Span<const LegacyFactoryFunction, 0>{},
interfaceCache,
sNativeProperties.Upcast(),
sChromeOnlyNativeProperties.Upcast(),
"MutationObserver", aDefineOnGlobal,
nullptr,
false,
nullptr);
}
JSObject*
GetConstructorObject(JSContext* aCx)
{
return GetConstructorObjectHandle(aCx);
}
} // namespace MutationObserver_Binding
namespace MutationRecord_Binding {
MOZ_CAN_RUN_SCRIPT static bool
get_type(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationRecord", "type", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationRecord*>(void_self);
DOMString result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetType(result))>, "Should be returning void here");
MOZ_KnownLive(self)->GetType(result);
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
return false;
}
return true;
}
static const JSJitInfo type_getterinfo = {
{ get_type },
{ prototypes::id::MutationRecord },
{ PrototypeTraits<prototypes::id::MutationRecord>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_STRING, /* 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. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_target(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationRecord", "target", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationRecord*>(void_self);
auto result(StrongOrRawPtr<nsINode>(MOZ_KnownLive(self)->GetTarget()));
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 target_getterinfo = {
{ get_target },
{ prototypes::id::MutationRecord },
{ PrototypeTraits<prototypes::id::MutationRecord>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_UNKNOWN, /* 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. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_addedNodes(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationRecord", "addedNodes", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationRecord*>(void_self);
auto result(StrongOrRawPtr<nsINodeList>(MOZ_KnownLive(self)->AddedNodes()));
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
static const JSJitInfo addedNodes_getterinfo = {
{ get_addedNodes },
{ prototypes::id::MutationRecord },
{ PrototypeTraits<prototypes::id::MutationRecord>::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. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_removedNodes(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationRecord", "removedNodes", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationRecord*>(void_self);
auto result(StrongOrRawPtr<nsINodeList>(MOZ_KnownLive(self)->RemovedNodes()));
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
static const JSJitInfo removedNodes_getterinfo = {
{ get_removedNodes },
{ prototypes::id::MutationRecord },
{ PrototypeTraits<prototypes::id::MutationRecord>::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. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_previousSibling(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationRecord", "previousSibling", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationRecord*>(void_self);
auto result(StrongOrRawPtr<nsINode>(MOZ_KnownLive(self)->GetPreviousSibling()));
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 previousSibling_getterinfo = {
{ get_previousSibling },
{ prototypes::id::MutationRecord },
{ PrototypeTraits<prototypes::id::MutationRecord>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_UNKNOWN, /* 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. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_nextSibling(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationRecord", "nextSibling", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationRecord*>(void_self);
auto result(StrongOrRawPtr<nsINode>(MOZ_KnownLive(self)->GetNextSibling()));
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 nextSibling_getterinfo = {
{ get_nextSibling },
{ prototypes::id::MutationRecord },
{ PrototypeTraits<prototypes::id::MutationRecord>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_UNKNOWN, /* 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. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_attributeName(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationRecord", "attributeName", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationRecord*>(void_self);
DOMString result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetAttributeName(result))>, "Should be returning void here");
MOZ_KnownLive(self)->GetAttributeName(result);
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!xpc::StringToJsval(cx, result, args.rval())) {
return false;
}
return true;
}
static const JSJitInfo attributeName_getterinfo = {
{ get_attributeName },
{ prototypes::id::MutationRecord },
{ PrototypeTraits<prototypes::id::MutationRecord>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_UNKNOWN, /* 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. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_attributeNamespace(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationRecord", "attributeNamespace", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationRecord*>(void_self);
DOMString result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetAttributeNamespace(result))>, "Should be returning void here");
MOZ_KnownLive(self)->GetAttributeNamespace(result);
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!xpc::StringToJsval(cx, result, args.rval())) {
return false;
}
return true;
}
static const JSJitInfo attributeNamespace_getterinfo = {
{ get_attributeNamespace },
{ prototypes::id::MutationRecord },
{ PrototypeTraits<prototypes::id::MutationRecord>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_UNKNOWN, /* 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. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_oldValue(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationRecord", "oldValue", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationRecord*>(void_self);
DOMString result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetOldValue(result))>, "Should be returning void here");
MOZ_KnownLive(self)->GetOldValue(result);
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!xpc::StringToJsval(cx, result, args.rval())) {
return false;
}
return true;
}
static const JSJitInfo oldValue_getterinfo = {
{ get_oldValue },
{ prototypes::id::MutationRecord },
{ PrototypeTraits<prototypes::id::MutationRecord>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_UNKNOWN, /* 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. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_addedAnimations(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationRecord", "addedAnimations", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationRecord*>(void_self);
// 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::GetClass(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.
return MaybeWrapNonDOMObjectValue(cx, args.rval());
}
}
nsTArray<StrongPtrForMember<mozilla::dom::Animation>> result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetAddedAnimations(result))>, "Should be returning void here");
MOZ_KnownLive(self)->GetAddedAnimations(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.
return MaybeWrapNonDOMObjectValue(cx, args.rval());
}
static const JSJitInfo addedAnimations_getterinfo = {
{ get_addedAnimations },
{ prototypes::id::MutationRecord },
{ PrototypeTraits<prototypes::id::MutationRecord>::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) < 4, "There is no slot for us");
MOZ_CAN_RUN_SCRIPT static bool
get_changedAnimations(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationRecord", "changedAnimations", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationRecord*>(void_self);
// 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 + 1) : (DOM_INSTANCE_RESERVED_SLOTS + 1);
MOZ_ASSERT(JSCLASS_RESERVED_SLOTS(JS::GetClass(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.
return MaybeWrapNonDOMObjectValue(cx, args.rval());
}
}
nsTArray<StrongPtrForMember<mozilla::dom::Animation>> result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetChangedAnimations(result))>, "Should be returning void here");
MOZ_KnownLive(self)->GetChangedAnimations(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.
return MaybeWrapNonDOMObjectValue(cx, args.rval());
}
static const JSJitInfo changedAnimations_getterinfo = {
{ get_changedAnimations },
{ prototypes::id::MutationRecord },
{ PrototypeTraits<prototypes::id::MutationRecord>::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 + 1) /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert((DOM_INSTANCE_RESERVED_SLOTS + 1) <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert((DOM_INSTANCE_RESERVED_SLOTS + 1) < 4, "There is no slot for us");
MOZ_CAN_RUN_SCRIPT static bool
get_removedAnimations(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MutationRecord", "removedAnimations", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<nsDOMMutationRecord*>(void_self);
// 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 + 2) : (DOM_INSTANCE_RESERVED_SLOTS + 2);
MOZ_ASSERT(JSCLASS_RESERVED_SLOTS(JS::GetClass(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.
return MaybeWrapNonDOMObjectValue(cx, args.rval());
}
}
nsTArray<StrongPtrForMember<mozilla::dom::Animation>> result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetRemovedAnimations(result))>, "Should be returning void here");
MOZ_KnownLive(self)->GetRemovedAnimations(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.
return MaybeWrapNonDOMObjectValue(cx, args.rval());
}
static const JSJitInfo removedAnimations_getterinfo = {
{ get_removedAnimations },
{ prototypes::id::MutationRecord },
{ PrototypeTraits<prototypes::id::MutationRecord>::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 + 2) /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert((DOM_INSTANCE_RESERVED_SLOTS + 2) <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert((DOM_INSTANCE_RESERVED_SLOTS + 2) < 4, "There is no slot for us");
static bool
_addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
{
nsDOMMutationRecord* self = UnwrapPossiblyNotInitializedDOMObject<nsDOMMutationRecord>(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::GCContext* gcx, JSObject* obj)
{
nsDOMMutationRecord* self = UnwrapPossiblyNotInitializedDOMObject<nsDOMMutationRecord>(obj);
if (self) {
JS::SetReservedSlot(obj, DOM_OBJECT_SLOT, JS::UndefinedValue());
ClearWrapper(self, self, obj);
if (size_t mallocBytes = BindingJSObjectMallocBytes(self)) {
JS::RemoveAssociatedMemory(obj, mallocBytes,
JS::MemoryUse::DOMBinding);
}
AddForDeferredFinalization<nsDOMMutationRecord>(self);
}
}
static nsWrapperCache*
_getWrapperCache(JS::Handle<JSObject*> obj)
{
nsDOMMutationRecord* self = UnwrapPossiblyNotInitializedDOMObject<nsDOMMutationRecord>(obj);
return self;
}
static size_t
_objectMoved(JSObject* obj, JSObject* old)
{
nsDOMMutationRecord* self = UnwrapPossiblyNotInitializedDOMObject<nsDOMMutationRecord>(obj);
if (self) {
UpdateWrapper(self, self, obj, old);
}
return 0;
}
static const JSPropertySpec sAttributes_specs[] = {
JSPropertySpec::nativeAccessors("type", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &type_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("target", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &target_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("addedNodes", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &addedNodes_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("removedNodes", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &removedNodes_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("previousSibling", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &previousSibling_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("nextSibling", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &nextSibling_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("attributeName", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &attributeName_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("attributeNamespace", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &attributeNamespace_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("oldValue", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &oldValue_getterinfo, nullptr, nullptr),
JS_PS_END
};
static const Prefable<const JSPropertySpec> sAttributes[] = {
{ nullptr, &sAttributes_specs[0] },
{ nullptr, nullptr }
};
static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
"We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
static_assert(9 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
"We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
static const JSPropertySpec sChromeAttributes_specs[] = {
JSPropertySpec::nativeAccessors("addedAnimations", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &addedAnimations_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("changedAnimations", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &changedAnimations_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("removedAnimations", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &removedAnimations_getterinfo, nullptr, nullptr),
JS_PS_END
};
static const Prefable<const JSPropertySpec> sChromeAttributes[] = {
{ nullptr, &sChromeAttributes_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[9];
static PropertyInfo sNativeProperties_propertyInfos[9];
static const NativePropertiesN<1> sNativeProperties = {
false, 0,
false, 0,
false, 0,
true, 0 /* sAttributes */,
false, 0,
false, 0,
false, 0,
-1,
9,
sNativeProperties_sortedPropertyIndices,
{
{ sAttributes, &sNativeProperties_propertyInfos[0] }
}
};
static_assert(9 < 1ull << (CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount)),
"We have a property info count that is oversized");
static uint16_t sChromeOnlyNativeProperties_sortedPropertyIndices[3];
static PropertyInfo sChromeOnlyNativeProperties_propertyInfos[3];
static const NativePropertiesN<1> sChromeOnlyNativeProperties = {
false, 0,
false, 0,
false, 0,
true, 0 /* sChromeAttributes */,
false, 0,
false, 0,
false, 0,
-1,
3,
sChromeOnlyNativeProperties_sortedPropertyIndices,
{
{ sChromeAttributes, &sChromeOnlyNativeProperties_propertyInfos[0] }
}
};
static_assert(3 < 1ull << (CHAR_BIT * sizeof(sChromeOnlyNativeProperties.propertyInfoCount)),
"We have a property info count that is oversized");
// 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, 3);
bool sNativePropertiesInited = false;
const NativePropertyHooks sNativePropertyHooks = {
nullptr,
{ sNativeProperties.Upcast(), sChromeOnlyNativeProperties.Upcast(), &sNativePropertiesInited },
prototypes::id::MutationRecord,
constructors::id::MutationRecord,
&sXrayExpandoObjectClass
};
static const DOMInterfaceInfo sInterfaceObjectInfo = {
{ ThrowingConstructor, &sNativePropertyHooks },
JS::GetRealmFunctionPrototype,
prototypes::id::MutationRecord,
PrototypeTraits<prototypes::id::MutationRecord>::Depth,
true,
};
static const DOMIfaceAndProtoJSClass sPrototypeClass = {
{
"MutationRecordPrototype",
JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),
JS_NULL_CLASS_OPS,
JS_NULL_CLASS_SPEC,
JS_NULL_CLASS_EXT,
JS_NULL_OBJECT_OPS
},
eInterfacePrototype,
prototypes::id::MutationRecord,
PrototypeTraits<prototypes::id::MutationRecord>::Depth,
&sNativePropertyHooks,
JS::GetRealmObjectPrototype
};
static const JSClassOps sClassOps = {
_addProperty, /* addProperty */
nullptr, /* delProperty */
nullptr, /* enumerate */
nullptr, /* newEnumerate */
nullptr, /* resolve */
nullptr, /* mayResolve */
_finalize, /* finalize */
nullptr, /* call */
nullptr, /* construct */
nullptr, /* trace */
};
static const js::ClassExtension sClassExtension = {
_objectMoved /* objectMovedOp */
};
static const DOMJSClass sClass = {
{ "MutationRecord",
JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(4) | JSCLASS_SKIP_NURSERY_FINALIZE,
&sClassOps,
JS_NULL_CLASS_SPEC,
&sClassExtension,
JS_NULL_OBJECT_OPS
},
{ prototypes::id::MutationRecord, 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 },
std::is_base_of_v<nsISupports, nsDOMMutationRecord>,
&sNativePropertyHooks,
FindAssociatedGlobalForNative<nsDOMMutationRecord>::Get,
GetProtoObjectHandle,
GetCCParticipant<nsDOMMutationRecord>::Get(),
nullptr,
_getWrapperCache
};
static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
"Must have the right minimal number of reserved slots.");
static_assert(4 >= 4,
"Must have enough reserved slots.");
bool
Wrap(JSContext* aCx, nsDOMMutationRecord* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
static_assert(!std::is_base_of_v<NonRefcountedDOMObject, nsDOMMutationRecord>,
"Shouldn't have wrappercached things that are not refcounted.");
static_assert(std::is_same_v<decltype(aObject), nsDOMMutationRecord*>);
MOZ_ASSERT(ToSupportsIsCorrect(aObject));
MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
MOZ_ASSERT(!aCache->GetWrapper(),
"You should probably not be using Wrap() directly; use "
"GetOrCreateDOMReflector instead");
MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
"nsISupports must be on our primary inheritance chain");
// If the wrapper cache contains a dead reflector then finalize that
// now, ensuring that the finalizer for the old reflector always
// runs before the new reflector is created and attached. This
// avoids the awkward situation where there are multiple reflector
// objects that contain pointers to the same native.
if (JSObject* oldReflector = aCache->GetWrapperMaybeDead()) {
_finalize(nullptr /* unused */, oldReflector);
MOZ_ASSERT(!aCache->GetWrapperMaybeDead());
}
JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
if (!global) {
return false;
}
MOZ_ASSERT(JS_IsGlobalObject(global));
JS::AssertObjectIsNotGray(global);
// That might have ended up wrapping us already, due to the wonders
// of XBL. Check for that, and bail out as needed.
aReflector.set(aCache->GetWrapper());
if (aReflector) {
#ifdef DEBUG
AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
#endif // DEBUG
return true;
}
JSAutoRealm ar(aCx, global);
JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
if (!canonicalProto) {
return false;
}
JS::Rooted<JSObject*> proto(aCx);
if (aGivenProto) {
proto = aGivenProto;
// Unfortunately, while aGivenProto was in the compartment of aCx
// coming in, we changed compartments to that of "parent" so may need
// to wrap the proto here.
if (js::GetContextCompartment(aCx) != JS::GetCompartment(proto)) {
if (!JS_WrapObject(aCx, &proto)) {
return false;
}
}
} else {
proto = canonicalProto;
}
BindingJSObjectCreator<nsDOMMutationRecord> creator(aCx);
creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
if (!aReflector) {
return false;
}
aCache->SetWrapper(aReflector);
creator.InitializationSucceeded();
MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
aCache->GetWrapperPreserveColor() == aReflector);
// If proto != canonicalProto, we have to preserve our wrapper;
// otherwise we won't be able to properly recreate it later, since
// we won't know what proto to use. Note that we don't check
// aGivenProto here, since it's entirely possible (and even
// somewhat common) to have a non-null aGivenProto which is the
// same as canonicalProto.
if (proto != canonicalProto) {
PreserveWrapper(aObject);
}
return true;
}
void
CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
{
JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::MutationRecord);
JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::MutationRecord);
JS::Rooted<JSObject*> parentProto(aCx, JS::GetRealmObjectPrototype(aCx));
if (!parentProto) {
return;
}
JS::Rooted<JSObject*> constructorProto(aCx, JS::GetRealmFunctionPrototype(aCx));
if (!constructorProto) {
return;
}
dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
&sPrototypeClass, protoCache,
constructorProto, &sInterfaceObjectInfo, 0, false, Span<const LegacyFactoryFunction, 0>{},
interfaceCache,
sNativeProperties.Upcast(),
sChromeOnlyNativeProperties.Upcast(),
"MutationRecord", aDefineOnGlobal,
nullptr,
false,
nullptr);
}
JSObject*
GetConstructorObject(JSContext* aCx)
{
return GetConstructorObjectHandle(aCx);
}
} // namespace MutationRecord_Binding
} // namespace mozilla::dom