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/* THIS FILE IS AUTOGENERATED FROM MessageEvent.webidl BY Codegen.py - DO NOT EDIT */
#include <type_traits>
#include "AtomList.h"
#include "EventBinding.h"
#include "MainThreadUtils.h"
#include "MessageEventBinding.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/OwningNonNull.h"
#include "mozilla/ProfilerLabels.h"
#include "mozilla/dom/BindingCallContext.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/DOMJSClass.h"
#include "mozilla/dom/MessageEvent.h"
#include "mozilla/dom/MessagePort.h"
#include "mozilla/dom/NonRefcountedDOMObject.h"
#include "mozilla/dom/Nullable.h"
#include "mozilla/dom/PrimitiveConversions.h"
#include "mozilla/dom/RootedDictionary.h"
#include "mozilla/dom/ScriptSettings.h"
#include "mozilla/dom/ServiceWorker.h"
#include "mozilla/dom/WindowProxyHolder.h"
#include "mozilla/dom/XrayExpandoClass.h"
namespace mozilla::dom {
namespace binding_detail {}; // Just to make sure it's known as a namespace
using namespace mozilla::dom::binding_detail;
void
ImplCycleCollectionTraverse(nsCycleCollectionTraversalCallback& aCallback, OwningWindowProxyOrMessagePortOrServiceWorker& aUnion, const char* aName, uint32_t aFlags)
{
if (aUnion.IsWindowProxy()) {
ImplCycleCollectionTraverse(aCallback, aUnion.GetAsWindowProxy(), "mWindowProxy", aFlags);
} else if (aUnion.IsMessagePort()) {
ImplCycleCollectionTraverse(aCallback, aUnion.GetAsMessagePort(), "mMessagePort", aFlags);
} else if (aUnion.IsServiceWorker()) {
ImplCycleCollectionTraverse(aCallback, aUnion.GetAsServiceWorker(), "mServiceWorker", aFlags);
}
}
void
ImplCycleCollectionUnlink(OwningWindowProxyOrMessagePortOrServiceWorker& aUnion)
{
aUnion.Uninit();
}
bool
WindowProxyOrMessagePortOrServiceWorker::TrySetToWindowProxy(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
mozilla::dom::WindowProxyHolder& memberSlot = RawSetAsWindowProxy();
JS::Rooted<JSObject*> source(cx, &value.toObject());
if (NS_FAILED(UnwrapWindowProxyArg(cx, source, memberSlot))) {
DestroyWindowProxy();
tryNext = true;
return true;
}
}
return true;
}
bool
WindowProxyOrMessagePortOrServiceWorker::TrySetToWindowProxy(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToWindowProxy(cx, value, tryNext, passedToJSImpl);
}
bool
WindowProxyOrMessagePortOrServiceWorker::TrySetToMessagePort(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
NonNull<mozilla::dom::MessagePort>& memberSlot = RawSetAsMessagePort();
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::MessagePort, mozilla::dom::MessagePort>(value, memberSlot, cx);
if (NS_FAILED(rv)) {
DestroyMessagePort();
tryNext = true;
return true;
}
}
}
return true;
}
bool
WindowProxyOrMessagePortOrServiceWorker::TrySetToMessagePort(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToMessagePort(cx, value, tryNext, passedToJSImpl);
}
bool
WindowProxyOrMessagePortOrServiceWorker::TrySetToServiceWorker(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
NonNull<mozilla::dom::ServiceWorker>& memberSlot = RawSetAsServiceWorker();
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::ServiceWorker, mozilla::dom::ServiceWorker>(value, memberSlot, cx);
if (NS_FAILED(rv)) {
DestroyServiceWorker();
tryNext = true;
return true;
}
}
}
return true;
}
bool
WindowProxyOrMessagePortOrServiceWorker::TrySetToServiceWorker(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToServiceWorker(cx, value, tryNext, passedToJSImpl);
}
bool
WindowProxyOrMessagePortOrServiceWorker::Init(BindingCallContext& cx, JS::Handle<JS::Value> value, const char* sourceDescription, bool passedToJSImpl)
{
MOZ_ASSERT(mType == eUninitialized);
bool done = false, failed = false, tryNext;
if (value.isObject()) {
done = (failed = !TrySetToWindowProxy(cx, value, tryNext, passedToJSImpl)) || !tryNext ||
(failed = !TrySetToMessagePort(cx, value, tryNext, passedToJSImpl)) || !tryNext ||
(failed = !TrySetToServiceWorker(cx, value, tryNext, passedToJSImpl)) || !tryNext;
}
if (failed) {
return false;
}
if (!done) {
cx.ThrowErrorMessage<MSG_NOT_IN_UNION>(sourceDescription, "WindowProxy, MessagePort, ServiceWorker");
return false;
}
return true;
}
bool
WindowProxyOrMessagePortOrServiceWorker::Init(JSContext* cx_, JS::Handle<JS::Value> value, const char* sourceDescription, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return Init(cx, value, sourceDescription, passedToJSImpl);
}
bool
WindowProxyOrMessagePortOrServiceWorker::ToJSVal(JSContext* cx, JS::Handle<JSObject*> scopeObj, JS::MutableHandle<JS::Value> rval) const
{
switch (mType) {
case eUninitialized: {
return false;
}
case eWindowProxy: {
if (!WrapObject(cx, mValue.mWindowProxy.Value(), rval)) {
return false;
}
return true;
}
case eMessagePort: {
if (!GetOrCreateDOMReflector(cx, mValue.mMessagePort.Value(), rval)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
case eServiceWorker: {
if (!GetOrCreateDOMReflector(cx, mValue.mServiceWorker.Value(), rval)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
default: {
return false;
}
}
}
OwningWindowProxyOrMessagePortOrServiceWorker::OwningWindowProxyOrMessagePortOrServiceWorker(OwningWindowProxyOrMessagePortOrServiceWorker&& aOther)
: mType(eUninitialized)
{
switch (aOther.mType) {
case eUninitialized: {
MOZ_ASSERT(mType == eUninitialized,
"We need to destroy ourselves?");
break;
}
case eWindowProxy: {
mType = eWindowProxy;
mValue.mWindowProxy.SetValue(std::move(aOther.mValue.mWindowProxy.Value()));
break;
}
case eMessagePort: {
mType = eMessagePort;
mValue.mMessagePort.SetValue(std::move(aOther.mValue.mMessagePort.Value()));
break;
}
case eServiceWorker: {
mType = eServiceWorker;
mValue.mServiceWorker.SetValue(std::move(aOther.mValue.mServiceWorker.Value()));
break;
}
}
}
bool
OwningWindowProxyOrMessagePortOrServiceWorker::TrySetToWindowProxy(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
mozilla::dom::WindowProxyHolder& memberSlot = RawSetAsWindowProxy();
JS::Rooted<JSObject*> source(cx, &value.toObject());
if (NS_FAILED(UnwrapWindowProxyArg(cx, source, memberSlot))) {
DestroyWindowProxy();
tryNext = true;
return true;
}
}
return true;
}
bool
OwningWindowProxyOrMessagePortOrServiceWorker::TrySetToWindowProxy(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToWindowProxy(cx, value, tryNext, passedToJSImpl);
}
[[nodiscard]] mozilla::dom::WindowProxyHolder&
OwningWindowProxyOrMessagePortOrServiceWorker::RawSetAsWindowProxy()
{
if (mType == eWindowProxy) {
return mValue.mWindowProxy.Value();
}
MOZ_ASSERT(mType == eUninitialized);
mType = eWindowProxy;
return mValue.mWindowProxy.SetValue();
}
[[nodiscard]] mozilla::dom::WindowProxyHolder&
OwningWindowProxyOrMessagePortOrServiceWorker::SetAsWindowProxy()
{
if (mType == eWindowProxy) {
return mValue.mWindowProxy.Value();
}
Uninit();
mType = eWindowProxy;
return mValue.mWindowProxy.SetValue();
}
void
OwningWindowProxyOrMessagePortOrServiceWorker::DestroyWindowProxy()
{
MOZ_RELEASE_ASSERT(IsWindowProxy(), "Wrong type!");
mValue.mWindowProxy.Destroy();
mType = eUninitialized;
}
bool
OwningWindowProxyOrMessagePortOrServiceWorker::TrySetToMessagePort(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
OwningNonNull<mozilla::dom::MessagePort>& memberSlot = RawSetAsMessagePort();
static_assert(IsRefcounted<mozilla::dom::MessagePort>::value, "We can only store refcounted classes.");
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::MessagePort, mozilla::dom::MessagePort>(value, memberSlot, cx);
if (NS_FAILED(rv)) {
DestroyMessagePort();
tryNext = true;
return true;
}
}
}
return true;
}
bool
OwningWindowProxyOrMessagePortOrServiceWorker::TrySetToMessagePort(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToMessagePort(cx, value, tryNext, passedToJSImpl);
}
[[nodiscard]] OwningNonNull<mozilla::dom::MessagePort>&
OwningWindowProxyOrMessagePortOrServiceWorker::RawSetAsMessagePort()
{
if (mType == eMessagePort) {
return mValue.mMessagePort.Value();
}
MOZ_ASSERT(mType == eUninitialized);
mType = eMessagePort;
return mValue.mMessagePort.SetValue();
}
[[nodiscard]] OwningNonNull<mozilla::dom::MessagePort>&
OwningWindowProxyOrMessagePortOrServiceWorker::SetAsMessagePort()
{
if (mType == eMessagePort) {
return mValue.mMessagePort.Value();
}
Uninit();
mType = eMessagePort;
return mValue.mMessagePort.SetValue();
}
void
OwningWindowProxyOrMessagePortOrServiceWorker::DestroyMessagePort()
{
MOZ_RELEASE_ASSERT(IsMessagePort(), "Wrong type!");
mValue.mMessagePort.Destroy();
mType = eUninitialized;
}
bool
OwningWindowProxyOrMessagePortOrServiceWorker::TrySetToServiceWorker(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
OwningNonNull<mozilla::dom::ServiceWorker>& memberSlot = RawSetAsServiceWorker();
static_assert(IsRefcounted<mozilla::dom::ServiceWorker>::value, "We can only store refcounted classes.");
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::ServiceWorker, mozilla::dom::ServiceWorker>(value, memberSlot, cx);
if (NS_FAILED(rv)) {
DestroyServiceWorker();
tryNext = true;
return true;
}
}
}
return true;
}
bool
OwningWindowProxyOrMessagePortOrServiceWorker::TrySetToServiceWorker(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToServiceWorker(cx, value, tryNext, passedToJSImpl);
}
[[nodiscard]] OwningNonNull<mozilla::dom::ServiceWorker>&
OwningWindowProxyOrMessagePortOrServiceWorker::RawSetAsServiceWorker()
{
if (mType == eServiceWorker) {
return mValue.mServiceWorker.Value();
}
MOZ_ASSERT(mType == eUninitialized);
mType = eServiceWorker;
return mValue.mServiceWorker.SetValue();
}
[[nodiscard]] OwningNonNull<mozilla::dom::ServiceWorker>&
OwningWindowProxyOrMessagePortOrServiceWorker::SetAsServiceWorker()
{
if (mType == eServiceWorker) {
return mValue.mServiceWorker.Value();
}
Uninit();
mType = eServiceWorker;
return mValue.mServiceWorker.SetValue();
}
void
OwningWindowProxyOrMessagePortOrServiceWorker::DestroyServiceWorker()
{
MOZ_RELEASE_ASSERT(IsServiceWorker(), "Wrong type!");
mValue.mServiceWorker.Destroy();
mType = eUninitialized;
}
bool
OwningWindowProxyOrMessagePortOrServiceWorker::Init(BindingCallContext& cx, JS::Handle<JS::Value> value, const char* sourceDescription, bool passedToJSImpl)
{
MOZ_ASSERT(mType == eUninitialized);
bool done = false, failed = false, tryNext;
if (value.isObject()) {
done = (failed = !TrySetToWindowProxy(cx, value, tryNext, passedToJSImpl)) || !tryNext ||
(failed = !TrySetToMessagePort(cx, value, tryNext, passedToJSImpl)) || !tryNext ||
(failed = !TrySetToServiceWorker(cx, value, tryNext, passedToJSImpl)) || !tryNext;
}
if (failed) {
return false;
}
if (!done) {
cx.ThrowErrorMessage<MSG_NOT_IN_UNION>(sourceDescription, "WindowProxy, MessagePort, ServiceWorker");
return false;
}
return true;
}
bool
OwningWindowProxyOrMessagePortOrServiceWorker::Init(JSContext* cx_, JS::Handle<JS::Value> value, const char* sourceDescription, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return Init(cx, value, sourceDescription, passedToJSImpl);
}
void
OwningWindowProxyOrMessagePortOrServiceWorker::Uninit()
{
switch (mType) {
case eUninitialized: {
break;
}
case eWindowProxy: {
DestroyWindowProxy();
break;
}
case eMessagePort: {
DestroyMessagePort();
break;
}
case eServiceWorker: {
DestroyServiceWorker();
break;
}
}
}
bool
OwningWindowProxyOrMessagePortOrServiceWorker::ToJSVal(JSContext* cx, JS::Handle<JSObject*> scopeObj, JS::MutableHandle<JS::Value> rval) const
{
switch (mType) {
case eUninitialized: {
return false;
}
case eWindowProxy: {
if (!WrapObject(cx, mValue.mWindowProxy.Value(), rval)) {
return false;
}
return true;
}
case eMessagePort: {
if (!GetOrCreateDOMReflector(cx, mValue.mMessagePort.Value(), rval)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
case eServiceWorker: {
if (!GetOrCreateDOMReflector(cx, mValue.mServiceWorker.Value(), rval)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
default: {
return false;
}
}
}
OwningWindowProxyOrMessagePortOrServiceWorker&
OwningWindowProxyOrMessagePortOrServiceWorker::operator=(OwningWindowProxyOrMessagePortOrServiceWorker&& aOther)
{
this->~OwningWindowProxyOrMessagePortOrServiceWorker();
new (this) OwningWindowProxyOrMessagePortOrServiceWorker (std::move(aOther));
return *this;
}
OwningWindowProxyOrMessagePortOrServiceWorker&
OwningWindowProxyOrMessagePortOrServiceWorker::operator=(const OwningWindowProxyOrMessagePortOrServiceWorker& aOther)
{
switch (aOther.mType) {
case eUninitialized: {
MOZ_ASSERT(mType == eUninitialized,
"We need to destroy ourselves?");
break;
}
case eWindowProxy: {
SetAsWindowProxy() = aOther.GetAsWindowProxy();
break;
}
case eMessagePort: {
SetAsMessagePort() = aOther.GetAsMessagePort();
break;
}
case eServiceWorker: {
SetAsServiceWorker() = aOther.GetAsServiceWorker();
break;
}
}
return *this;
}
MessageEventInit::MessageEventInit()
: EventInit(FastDictionaryInitializer())
{
// Safe to pass a null context if we pass a null value
Init(nullptr, JS::NullHandleValue);
}
bool
MessageEventInit::InitIds(JSContext* cx, MessageEventInitAtoms* atomsCache)
{
MOZ_ASSERT(reinterpret_cast<jsid*>(atomsCache)->isVoid());
// Initialize these in reverse order so that any failure leaves the first one
// uninitialized.
if (!atomsCache->source_id.init(cx, "source") ||
!atomsCache->ports_id.init(cx, "ports") ||
!atomsCache->origin_id.init(cx, "origin") ||
!atomsCache->lastEventId_id.init(cx, "lastEventId") ||
!atomsCache->data_id.init(cx, "data")) {
return false;
}
return true;
}
bool
MessageEventInit::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());
MessageEventInitAtoms* atomsCache = nullptr;
if (cx) {
atomsCache = GetAtomCache<MessageEventInitAtoms>(cx);
if (reinterpret_cast<jsid*>(atomsCache)->isVoid() &&
!InitIds(cx, atomsCache)) {
return false;
}
}
// Per spec, we init the parent's members first
if (!EventInit::Init(cx, val)) {
return false;
}
bool isNull = val.isNullOrUndefined();
// We only need these if !isNull, in which case we have |cx|.
Maybe<JS::Rooted<JSObject *> > object;
Maybe<JS::Rooted<JS::Value> > temp;
if (!isNull) {
MOZ_ASSERT(cx);
object.emplace(cx, &val.toObject());
temp.emplace(cx);
}
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->data_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunreachable-code"
#pragma clang diagnostic ignored "-Wunreachable-code-return"
#endif // __clang__
if ((passedToJSImpl) && !CallerSubsumes(temp.ref())) {
cx.ThrowErrorMessage<MSG_PERMISSION_DENIED_TO_PASS_ARG>("'data' member of MessageEventInit");
return false;
}
#ifdef __clang__
#pragma clang diagnostic pop
#endif // __clang__
mData = temp.ref();
} else {
mData = JS::NullValue();
}
mIsAnyMemberPresent = true;
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->lastEventId_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
if (!ConvertJSValueToString(cx, temp.ref(), eStringify, eStringify, mLastEventId)) {
return false;
}
} else {
mLastEventId.AssignLiteral(u"");
}
mIsAnyMemberPresent = true;
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->origin_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
if (!ConvertJSValueToString(cx, temp.ref(), eStringify, eStringify, mOrigin)) {
return false;
}
} else {
mOrigin.AssignLiteral(u"");
}
mIsAnyMemberPresent = true;
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->ports_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
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>("'ports' member of MessageEventInit", "sequence");
return false;
}
Sequence<OwningNonNull<mozilla::dom::MessagePort>> &arr = mPorts;
JS::Rooted<JS::Value> temp(cx);
while (true) {
bool done;
if (!iter.next(&temp, &done)) {
return false;
}
if (done) {
break;
}
OwningNonNull<mozilla::dom::MessagePort>* slotPtr = arr.AppendElement(mozilla::fallible);
if (!slotPtr) {
JS_ReportOutOfMemory(cx);
return false;
}
OwningNonNull<mozilla::dom::MessagePort>& slot = *slotPtr;
if (temp.isObject()) {
static_assert(IsRefcounted<mozilla::dom::MessagePort>::value, "We can only store refcounted classes.");
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::MessagePort, mozilla::dom::MessagePort>(&temp, slot, cx);
if (NS_FAILED(rv)) {
cx.ThrowErrorMessage<MSG_DOES_NOT_IMPLEMENT_INTERFACE>("Element of 'ports' member of MessageEventInit", "MessagePort");
return false;
}
}
} else {
cx.ThrowErrorMessage<MSG_NOT_OBJECT>("Element of 'ports' member of MessageEventInit");
return false;
}
}
} else {
cx.ThrowErrorMessage<MSG_CONVERSION_ERROR>("'ports' member of MessageEventInit", "sequence");
return false;
}
} else {
/* mPorts array is already empty; nothing to do */
}
mIsAnyMemberPresent = true;
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->source_id, temp.ptr())) {
return false;
}
}
if (!(!isNull && !temp->isUndefined()) || temp.ref().isNullOrUndefined()) {
mSource.SetNull();
} else {
if (!mSource.SetValue().Init(cx, temp.ref(), "'source' member of MessageEventInit", passedToJSImpl)) {
return false;
}
}
mIsAnyMemberPresent = true;
return true;
}
bool
MessageEventInit::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);
}
void
MessageEventInit::TraceDictionary(JSTracer* trc)
{
EventInit::TraceDictionary(trc);
JS::TraceRoot(trc, &mData, "MessageEventInit.mData");
}
namespace MessageEvent_Binding {
static_assert(IsRefcounted<NativeType>::value == IsRefcounted<Event_Binding::NativeType>::value,
"Can't inherit from an interface with a different ownership model.");
MOZ_CAN_RUN_SCRIPT static bool
get_data(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MessageEvent", "data", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::MessageEvent*>(void_self);
FastErrorResult rv;
JS::Rooted<JS::Value> result(cx);
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetData(cx, &result, rv))>, "Should be returning void here");
MOZ_KnownLive(self)->GetData(cx, &result, rv);
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "MessageEvent.data getter"))) {
return false;
}
MOZ_ASSERT(!JS_IsExceptionPending(cx));
JS::ExposeValueToActiveJS(result);
args.rval().set(result);
if (!MaybeWrapValue(cx, args.rval())) {
return false;
}
return true;
}
static const JSJitInfo data_getterinfo = {
{ get_data },
{ prototypes::id::MessageEvent },
{ PrototypeTraits<prototypes::id::MessageEvent>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_UNKNOWN, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
false, /* isMovable. Not relevant for setters. */
false, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_origin(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MessageEvent", "origin", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::MessageEvent*>(void_self);
DOMString result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetOrigin(result))>, "Should be returning void here");
MOZ_KnownLive(self)->GetOrigin(result);
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
return false;
}
return true;
}
static const JSJitInfo origin_getterinfo = {
{ get_origin },
{ prototypes::id::MessageEvent },
{ PrototypeTraits<prototypes::id::MessageEvent>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_STRING, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
false, /* isMovable. Not relevant for setters. */
false, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_lastEventId(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MessageEvent", "lastEventId", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::MessageEvent*>(void_self);
DOMString result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetLastEventId(result))>, "Should be returning void here");
MOZ_KnownLive(self)->GetLastEventId(result);
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
return false;
}
return true;
}
static const JSJitInfo lastEventId_getterinfo = {
{ get_lastEventId },
{ prototypes::id::MessageEvent },
{ PrototypeTraits<prototypes::id::MessageEvent>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_STRING, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
false, /* isMovable. Not relevant for setters. */
false, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_source(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MessageEvent", "source", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::MessageEvent*>(void_self);
Nullable<OwningWindowProxyOrMessagePortOrServiceWorker> result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetSource(result))>, "Should be returning void here");
MOZ_KnownLive(self)->GetSource(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 source_getterinfo = {
{ get_source },
{ prototypes::id::MessageEvent },
{ PrototypeTraits<prototypes::id::MessageEvent>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_UNKNOWN, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
false, /* isMovable. Not relevant for setters. */
false, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
get_ports(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MessageEvent", "ports", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::MessageEvent*>(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::MessagePort>> result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetPorts(result))>, "Should be returning void here");
MOZ_KnownLive(self)->GetPorts(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);
JS::Rooted<JSObject*> rvalObj(cx, &args.rval().toObject());
if (!JS_FreezeObject(cx, rvalObj)) {
return 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 ports_getterinfo = {
{ get_ports },
{ prototypes::id::MessageEvent },
{ PrototypeTraits<prototypes::id::MessageEvent>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasDOMSets, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_OBJECT, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
true, /* isMovable. Not relevant for setters. */
true, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
true, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
(DOM_INSTANCE_RESERVED_SLOTS + 0) /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert((DOM_INSTANCE_RESERVED_SLOTS + 0) <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert((DOM_INSTANCE_RESERVED_SLOTS + 0) < 2, "There is no slot for us");
MOZ_CAN_RUN_SCRIPT static bool
initMessageEvent(JSContext* cx_, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
BindingCallContext cx(cx_, "MessageEvent.initMessageEvent");
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MessageEvent", "initMessageEvent", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::MessageEvent*>(void_self);
if (!args.requireAtLeast(cx, "MessageEvent.initMessageEvent", 1)) {
return false;
}
binding_detail::FakeString<char16_t> arg0;
if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
return false;
}
bool arg1;
if (args.hasDefined(1)) {
if (!ValueToPrimitive<bool, eDefault>(cx, args[1], "Argument 2", &arg1)) {
return false;
}
} else {
arg1 = false;
}
bool arg2;
if (args.hasDefined(2)) {
if (!ValueToPrimitive<bool, eDefault>(cx, args[2], "Argument 3", &arg2)) {
return false;
}
} else {
arg2 = false;
}
JS::Rooted<JS::Value> arg3(cx);
if (args.hasDefined(3)) {
arg3 = args[3];
} else {
arg3 = JS::NullValue();
}
binding_detail::FakeString<char16_t> arg4;
if (args.hasDefined(4)) {
if (!ConvertJSValueToString(cx, args[4], eStringify, eStringify, arg4)) {
return false;
}
} else {
arg4.AssignLiteral(u"");
}
binding_detail::FakeString<char16_t> arg5;
if (args.hasDefined(5)) {
if (!ConvertJSValueToString(cx, args[5], eStringify, eStringify, arg5)) {
return false;
}
} else {
arg5.AssignLiteral(u"");
}
Nullable<WindowProxyOrMessagePortOrServiceWorker > arg6;
if (!(args.hasDefined(6)) || args[6].isNullOrUndefined()) {
arg6.SetNull();
} else {
if (!arg6.SetValue().Init(cx, args[6], "Argument 7", false)) {
return false;
}
}
binding_detail::AutoSequence<OwningNonNull<mozilla::dom::MessagePort>> arg7;
if (args.hasDefined(7)) {
if (args[7].isObject()) {
JS::ForOfIterator iter(cx);
if (!iter.init(args[7], JS::ForOfIterator::AllowNonIterable)) {
return false;
}
if (!iter.valueIsIterable()) {
cx.ThrowErrorMessage<MSG_CONVERSION_ERROR>("Argument 8", "sequence");
return false;
}
binding_detail::AutoSequence<OwningNonNull<mozilla::dom::MessagePort>> &arr = arg7;
JS::Rooted<JS::Value> temp(cx);
while (true) {
bool done;
if (!iter.next(&temp, &done)) {
return false;
}
if (done) {
break;
}
OwningNonNull<mozilla::dom::MessagePort>* slotPtr = arr.AppendElement(mozilla::fallible);
if (!slotPtr) {
JS_ReportOutOfMemory(cx);
return false;
}
OwningNonNull<mozilla::dom::MessagePort>& slot = *slotPtr;
if (temp.isObject()) {
static_assert(IsRefcounted<mozilla::dom::MessagePort>::value, "We can only store refcounted classes.");
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::MessagePort, mozilla::dom::MessagePort>(&temp, slot, cx);
if (NS_FAILED(rv)) {
cx.ThrowErrorMessage<MSG_DOES_NOT_IMPLEMENT_INTERFACE>("Element of argument 8", "MessagePort");
return false;
}
}
} else {
cx.ThrowErrorMessage<MSG_NOT_OBJECT>("Element of argument 8");
return false;
}
}
} else {
cx.ThrowErrorMessage<MSG_CONVERSION_ERROR>("Argument 8", "sequence");
return false;
}
} else {
/* arg7 array is already empty; nothing to do */
}
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->InitMessageEvent(cx, NonNullHelper(Constify(arg0)), arg1, arg2, arg3, NonNullHelper(Constify(arg4)), NonNullHelper(Constify(arg5)), Constify(arg6), Constify(arg7)))>, "Should be returning void here");
MOZ_KnownLive(self)->InitMessageEvent(cx, NonNullHelper(Constify(arg0)), arg1, arg2, arg3, NonNullHelper(Constify(arg4)), NonNullHelper(Constify(arg5)), Constify(arg6), Constify(arg7));
MOZ_ASSERT(!JS_IsExceptionPending(cx));
args.rval().setUndefined();
return true;
}
static const JSJitInfo initMessageEvent_methodinfo = {
{ (JSJitGetterOp)initMessageEvent },
{ prototypes::id::MessageEvent },
{ PrototypeTraits<prototypes::id::MessageEvent>::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
get_isTrusted(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MessageEvent", "isTrusted", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::MessageEvent*>(void_self);
bool result(MOZ_KnownLive(self)->IsTrusted());
MOZ_ASSERT(!JS_IsExceptionPending(cx));
args.rval().setBoolean(result);
return true;
}
static const JSJitInfo isTrusted_getterinfo = {
{ get_isTrusted },
{ prototypes::id::MessageEvent },
{ PrototypeTraits<prototypes::id::MessageEvent>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasDOMSets, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_BOOLEAN, /* returnType. Not relevant for setters. */
true, /* 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. */
};
static bool
_addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
{
mozilla::dom::MessageEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::MessageEvent>(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)
{
mozilla::dom::MessageEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::MessageEvent>(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<mozilla::dom::MessageEvent>(self);
}
}
static nsWrapperCache*
_getWrapperCache(JS::Handle<JSObject*> obj)
{
mozilla::dom::MessageEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::MessageEvent>(obj);
return self;
}
static size_t
_objectMoved(JSObject* obj, JSObject* old)
{
mozilla::dom::MessageEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::MessageEvent>(obj);
if (self) {
UpdateWrapper(self, self, obj, old);
}
return 0;
}
static const JSFunctionSpec sMethods_specs[] = {
JS_FNSPEC("initMessageEvent", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&initMessageEvent_methodinfo), 1, 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(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 sAttributes_specs[] = {
JSPropertySpec::nativeAccessors("data", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &data_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("origin", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &origin_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("lastEventId", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &lastEventId_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("source", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &source_getterinfo, nullptr, nullptr),
JSPropertySpec::nativeAccessors("ports", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &ports_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(5 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
"We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
static const JSPropertySpec sUnforgeableAttributes_specs[] = {
JSPropertySpec::nativeAccessors("isTrusted", JSPROP_ENUMERATE | JSPROP_PERMANENT, GenericGetter<NormalThisPolicy, ThrowExceptions>, &isTrusted_getterinfo, nullptr, nullptr),
JS_PS_END
};
static const Prefable<const JSPropertySpec> sUnforgeableAttributes[] = {
{ nullptr, &sUnforgeableAttributes_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[7];
static PropertyInfo sNativeProperties_propertyInfos[7];
static const NativePropertiesN<3> sNativeProperties = {
false, 0,
false, 0,
true, 0 /* sMethods */,
true, 1 /* sAttributes */,
false, 0,
true, 2 /* sUnforgeableAttributes */,
false, 0,
-1,
7,
sNativeProperties_sortedPropertyIndices,
{
{ sMethods, &sNativeProperties_propertyInfos[0] },
{ sAttributes, &sNativeProperties_propertyInfos[1] },
{ sUnforgeableAttributes, &sNativeProperties_propertyInfos[6] }
}
};
static_assert(7 < 1ull << (CHAR_BIT * sizeof(sNativeProperties.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, 1);
bool sNativePropertiesInited = false;
const NativePropertyHooks sNativePropertyHooks = {
nullptr,
{ sNativeProperties.Upcast(), nullptr, &sNativePropertiesInited },
prototypes::id::MessageEvent,
constructors::id::MessageEvent,
&sXrayExpandoObjectClass
};
static bool
_constructor(JSContext* cx_, unsigned argc, JS::Value* vp)
{
BindingCallContext cx(cx_, "MessageEvent constructor");
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"MessageEvent", "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, "MessageEvent");
}
JS::Rooted<JSObject*> desiredProto(cx);
if (!GetDesiredProto(cx, args,
prototypes::id::MessageEvent,
CreateInterfaceObjects,
&desiredProto)) {
return false;
}
if (!args.requireAtLeast(cx, "MessageEvent constructor", 1)) {
return false;
}
GlobalObject global(cx, obj);
if (global.Failed()) {
return false;
}
bool objIsXray = xpc::WrapperFactory::IsXrayWrapper(obj);
binding_detail::FakeString<char16_t> arg0;
if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
return false;
}
RootedDictionary<binding_detail::FastMessageEventInit> arg1(cx);
if (!arg1.Init(cx, (args.hasDefined(1)) ? args[1] : JS::NullHandleValue, "Argument 2", false)) {
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;
}
if (!JS_WrapValue(cx, JS::MutableHandle<JS::Value>::fromMarkedLocation(&arg1.mData))) {
return false;
}
}
auto result(StrongOrRawPtr<mozilla::dom::MessageEvent>(mozilla::dom::MessageEvent::Constructor(global, NonNullHelper(Constify(arg0)), Constify(arg1))));
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 },
Event_Binding::GetConstructorObject,
prototypes::id::MessageEvent,
PrototypeTraits<prototypes::id::MessageEvent>::Depth,
true,
};
static const DOMIfaceAndProtoJSClass sPrototypeClass = {
{
"MessageEventPrototype",
JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE + 1 /* slot for the JSObject holding the unforgeable properties */),
JS_NULL_CLASS_OPS,
JS_NULL_CLASS_SPEC,
JS_NULL_CLASS_EXT,
JS_NULL_OBJECT_OPS
},
eInterfacePrototype,
prototypes::id::MessageEvent,
PrototypeTraits<prototypes::id::MessageEvent>::Depth,
&sNativePropertyHooks,
Event_Binding::GetProtoObject
};
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 = {
{ "MessageEvent",
JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(2) | JSCLASS_SKIP_NURSERY_FINALIZE,
&sClassOps,
JS_NULL_CLASS_SPEC,
&sClassExtension,
JS_NULL_OBJECT_OPS
},
{ prototypes::id::Event, prototypes::id::MessageEvent, 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, mozilla::dom::MessageEvent>,
&sNativePropertyHooks,
FindAssociatedGlobalForNative<mozilla::dom::MessageEvent>::Get,
GetProtoObjectHandle,
GetCCParticipant<mozilla::dom::MessageEvent>::Get(),
nullptr,
_getWrapperCache
};
static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
"Must have the right minimal number of reserved slots.");
static_assert(2 >= 2,
"Must have enough reserved slots.");
bool
Wrap(JSContext* aCx, mozilla::dom::MessageEvent* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
static_assert(!std::is_base_of_v<NonRefcountedDOMObject, mozilla::dom::MessageEvent>,
"Shouldn't have wrappercached things that are not refcounted.");
static_assert(std::is_same_v<decltype(aObject), mozilla::dom::MessageEvent*>);
MOZ_ASSERT(static_cast<mozilla::dom::Event*>(aObject) ==
reinterpret_cast<mozilla::dom::Event*>(aObject),
"Multiple inheritance for mozilla::dom::Event 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");
// 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<mozilla::dom::MessageEvent> creator(aCx);
creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
if (!aReflector) {
return false;
}
aCache->SetWrapper(aReflector);
// Important: do unforgeable property setup after we have handed
// over ownership of the C++ object to obj as needed, so that if
// we fail and it ends up GCed it won't have problems in the
// finalizer trying to drop its ownership of the C++ object.
JS::Rooted<JSObject*> unforgeableHolder(aCx,
&JS::GetReservedSlot(canonicalProto, DOM_INTERFACE_PROTO_SLOTS_BASE).toObject());
if (!JS_InitializePropertiesFromCompatibleNativeObject(aCx, aReflector, unforgeableHolder)) {
aCache->ReleaseWrapper(aObject);
aCache->ClearWrapper();
return false;
}
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
ClearCachedPortsValue(mozilla::dom::MessageEvent* aObject)
{
JSObject* obj;
obj = aObject->GetWrapper();
if (!obj) {
return;
}
JS::SetReservedSlot(obj, (DOM_INSTANCE_RESERVED_SLOTS + 0), JS::UndefinedValue());
xpc::ClearXrayExpandoSlots(obj, (xpc::JSSLOT_EXPANDO_COUNT + 0));
}
void
CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
{
JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::MessageEvent);
JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::MessageEvent);
JS::Handle<JSObject*> parentProto(Event_Binding::GetProtoObjectHandle(aCx));
if (!parentProto) {
return;
}
JS::Handle<JSObject*> constructorProto(Event_Binding::GetConstructorObjectHandle(aCx));
if (!constructorProto) {
return;
}
dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
&sPrototypeClass, protoCache,
constructorProto, &sInterfaceObjectInfo, 1, false, Span<const LegacyFactoryFunction, 0>{},
interfaceCache,
sNativeProperties.Upcast(),
nullptr,
"MessageEvent", aDefineOnGlobal,
nullptr,
false,
nullptr);
JS::AssertObjectIsNotGray(*protoCache);
JS::Handle<JSObject*> proto = JS::Handle<JSObject*>::fromMarkedLocation(protoCache->address());
if (!proto) {
*protoCache = nullptr;
if (interfaceCache) {
*interfaceCache = nullptr;
}
return;
}
JS::Rooted<JSObject*> unforgeableHolder(
aCx, JS_NewObjectWithoutMetadata(aCx, sClass.ToJSClass(), proto));
if (!unforgeableHolder) {
*protoCache = nullptr;
if (interfaceCache) {
*interfaceCache = nullptr;
}
return;
}
if (!DefineLegacyUnforgeableAttributes(aCx, unforgeableHolder, sUnforgeableAttributes)) {
*protoCache = nullptr;
if (interfaceCache) {
*interfaceCache = nullptr;
}
return;
}
if (*protoCache) {
JS::SetReservedSlot(*protoCache, DOM_INTERFACE_PROTO_SLOTS_BASE,
JS::ObjectValue(*unforgeableHolder));
}
}
JSObject*
GetConstructorObject(JSContext* aCx)
{
return GetConstructorObjectHandle(aCx);
}
} // namespace MessageEvent_Binding
} // namespace mozilla::dom