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/* THIS FILE IS AUTOGENERATED FROM ReadableStream.webidl BY Codegen.py - DO NOT EDIT */
#include <type_traits>
#include "AtomList.h"
#include "MainThreadUtils.h"
#include "QueuingStrategyBinding.h"
#include "ReadableStreamBinding.h"
#include "ReadableStreamDefaultReaderBinding.h"
#include "WrapperFactory.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/Symbol.h"
#include "js/experimental/JitInfo.h"
#include "jsapi.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/IterableIterator.h"
#include "mozilla/dom/NonRefcountedDOMObject.h"
#include "mozilla/dom/PrimitiveConversions.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/dom/ReadableStream.h"
#include "mozilla/dom/ReadableStreamBYOBReader.h"
#include "mozilla/dom/ReadableStreamDefaultReader.h"
#include "mozilla/dom/ScriptSettings.h"
#include "mozilla/dom/SimpleGlobalObject.h"
#include "mozilla/dom/ToJSValue.h"
#include "mozilla/dom/WebIDLPrefs.h"
#include "mozilla/dom/WritableStream.h"
#include "mozilla/dom/XrayExpandoClass.h"
namespace mozilla {
namespace dom {
namespace binding_detail {}; // Just to make sure it's known as a namespace
using namespace mozilla::dom::binding_detail;
namespace binding_detail {
const nsLiteralCString EnumStrings<ReadableStreamReaderMode>::Values[1] = {
"byob"_ns,
};
} // namespace binding_detail
bool
ToJSValue(JSContext* aCx, ReadableStreamReaderMode aArgument, JS::MutableHandle<JS::Value> aValue)
{
MOZ_ASSERT(uint32_t(aArgument) < ArrayLength(binding_detail::EnumStrings<ReadableStreamReaderMode>::Values));
JSString* resultStr =
JS_NewStringCopyN(aCx, binding_detail::EnumStrings<ReadableStreamReaderMode>::Values[uint32_t(aArgument)].BeginReading(),
binding_detail::EnumStrings<ReadableStreamReaderMode>::Values[uint32_t(aArgument)].Length());
if (!resultStr) {
return false;
}
aValue.setString(resultStr);
return true;
}
ReadableStreamGetReaderOptions::ReadableStreamGetReaderOptions()
{
// Safe to pass a null context if we pass a null value
Init(nullptr, JS::NullHandleValue);
}
bool
ReadableStreamGetReaderOptions::InitIds(JSContext* cx, ReadableStreamGetReaderOptionsAtoms* atomsCache)
{
MOZ_ASSERT(reinterpret_cast<jsid*>(atomsCache)->isVoid());
// Initialize these in reverse order so that any failure leaves the first one
// uninitialized.
if (!atomsCache->mode_id.init(cx, "mode")) {
return false;
}
return true;
}
bool
ReadableStreamGetReaderOptions::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());
ReadableStreamGetReaderOptionsAtoms* atomsCache = nullptr;
if (cx) {
atomsCache = GetAtomCache<ReadableStreamGetReaderOptionsAtoms>(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 (!JS_GetPropertyById(cx, *object, atomsCache->mode_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
mMode.Construct();
{
int index;
if (!binding_detail::FindEnumStringIndex<true>(cx, temp.ref(),
binding_detail::EnumStrings<ReadableStreamReaderMode>::Values,
"ReadableStreamReaderMode", "'mode' member of ReadableStreamGetReaderOptions",
&index)) {
return false;
}
MOZ_ASSERT(index >= 0);
(mMode.Value()) = static_cast<ReadableStreamReaderMode>(index);
}
mIsAnyMemberPresent = true;
}
return true;
}
bool
ReadableStreamGetReaderOptions::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
ReadableStreamGetReaderOptions::TraceDictionary(JSTracer* trc)
{
}
ReadableStreamGetReaderOptions&
ReadableStreamGetReaderOptions::operator=(const ReadableStreamGetReaderOptions& aOther)
{
DictionaryBase::operator=(aOther);
mMode.Reset();
if (aOther.mMode.WasPassed()) {
mMode.Construct(aOther.mMode.Value());
}
return *this;
}
ReadableStreamIteratorOptions::ReadableStreamIteratorOptions()
{
// Safe to pass a null context if we pass a null value
Init(nullptr, JS::NullHandleValue);
}
bool
ReadableStreamIteratorOptions::InitIds(JSContext* cx, ReadableStreamIteratorOptionsAtoms* atomsCache)
{
MOZ_ASSERT(reinterpret_cast<jsid*>(atomsCache)->isVoid());
// Initialize these in reverse order so that any failure leaves the first one
// uninitialized.
if (!atomsCache->preventCancel_id.init(cx, "preventCancel")) {
return false;
}
return true;
}
bool
ReadableStreamIteratorOptions::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());
ReadableStreamIteratorOptionsAtoms* atomsCache = nullptr;
if (cx) {
atomsCache = GetAtomCache<ReadableStreamIteratorOptionsAtoms>(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 (!JS_GetPropertyById(cx, *object, atomsCache->preventCancel_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), "'preventCancel' member of ReadableStreamIteratorOptions", &mPreventCancel)) {
return false;
}
} else {
mPreventCancel = false;
}
mIsAnyMemberPresent = true;
return true;
}
bool
ReadableStreamIteratorOptions::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
ReadableStreamIteratorOptions::TraceDictionary(JSTracer* trc)
{
}
ReadableStreamIteratorOptions&
ReadableStreamIteratorOptions::operator=(const ReadableStreamIteratorOptions& aOther)
{
DictionaryBase::operator=(aOther);
mPreventCancel = aOther.mPreventCancel;
return *this;
}
bool
ReadableStreamIteratorOptions::operator==(const ReadableStreamIteratorOptions& aOther) const
{
if (mPreventCancel != aOther.mPreventCancel) {
return false;
}
return true;
}
ReadableWritablePair::ReadableWritablePair()
{
// Safe to pass a null context if we pass a null value
Init(nullptr, JS::NullHandleValue);
}
bool
ReadableWritablePair::InitIds(JSContext* cx, ReadableWritablePairAtoms* atomsCache)
{
MOZ_ASSERT(reinterpret_cast<jsid*>(atomsCache)->isVoid());
// Initialize these in reverse order so that any failure leaves the first one
// uninitialized.
if (!atomsCache->writable_id.init(cx, "writable") ||
!atomsCache->readable_id.init(cx, "readable")) {
return false;
}
return true;
}
bool
ReadableWritablePair::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());
ReadableWritablePairAtoms* atomsCache = nullptr;
if (cx) {
atomsCache = GetAtomCache<ReadableWritablePairAtoms>(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 (!JS_GetPropertyById(cx, *object, atomsCache->readable_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
if (temp.ref().isObject()) {
static_assert(IsRefcounted<mozilla::dom::ReadableStream>::value, "We can only store refcounted classes.");
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::ReadableStream, mozilla::dom::ReadableStream>(temp.ptr(), mReadable, cx);
if (NS_FAILED(rv)) {
cx.ThrowErrorMessage<MSG_DOES_NOT_IMPLEMENT_INTERFACE>("'readable' member of ReadableWritablePair", "ReadableStream");
return false;
}
}
} else {
cx.ThrowErrorMessage<MSG_NOT_OBJECT>("'readable' member of ReadableWritablePair");
return false;
}
mIsAnyMemberPresent = true;
} else if (cx) {
// Don't error out if we have no cx. In that
// situation the caller is default-constructing us and we'll
// just assume they know what they're doing.
return cx.ThrowErrorMessage<MSG_MISSING_REQUIRED_DICTIONARY_MEMBER>("'readable' member of ReadableWritablePair");
}
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->writable_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
if (temp.ref().isObject()) {
static_assert(IsRefcounted<mozilla::dom::WritableStream>::value, "We can only store refcounted classes.");
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::WritableStream, mozilla::dom::WritableStream>(temp.ptr(), mWritable, cx);
if (NS_FAILED(rv)) {
cx.ThrowErrorMessage<MSG_DOES_NOT_IMPLEMENT_INTERFACE>("'writable' member of ReadableWritablePair", "WritableStream");
return false;
}
}
} else {
cx.ThrowErrorMessage<MSG_NOT_OBJECT>("'writable' member of ReadableWritablePair");
return false;
}
mIsAnyMemberPresent = true;
} else if (cx) {
// Don't error out if we have no cx. In that
// situation the caller is default-constructing us and we'll
// just assume they know what they're doing.
return cx.ThrowErrorMessage<MSG_MISSING_REQUIRED_DICTIONARY_MEMBER>("'writable' member of ReadableWritablePair");
}
return true;
}
bool
ReadableWritablePair::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
ReadableWritablePair::TraceDictionary(JSTracer* trc)
{
}
ReadableWritablePair&
ReadableWritablePair::operator=(const ReadableWritablePair& aOther)
{
DictionaryBase::operator=(aOther);
mReadable = aOther.mReadable;
mWritable = aOther.mWritable;
return *this;
}
StreamPipeOptions::StreamPipeOptions()
{
// Safe to pass a null context if we pass a null value
Init(nullptr, JS::NullHandleValue);
}
bool
StreamPipeOptions::InitIds(JSContext* cx, StreamPipeOptionsAtoms* atomsCache)
{
MOZ_ASSERT(reinterpret_cast<jsid*>(atomsCache)->isVoid());
// Initialize these in reverse order so that any failure leaves the first one
// uninitialized.
if (!atomsCache->signal_id.init(cx, "signal") ||
!atomsCache->preventClose_id.init(cx, "preventClose") ||
!atomsCache->preventCancel_id.init(cx, "preventCancel") ||
!atomsCache->preventAbort_id.init(cx, "preventAbort")) {
return false;
}
return true;
}
bool
StreamPipeOptions::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());
StreamPipeOptionsAtoms* atomsCache = nullptr;
if (cx) {
atomsCache = GetAtomCache<StreamPipeOptionsAtoms>(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 (!JS_GetPropertyById(cx, *object, atomsCache->preventAbort_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), "'preventAbort' member of StreamPipeOptions", &mPreventAbort)) {
return false;
}
} else {
mPreventAbort = false;
}
mIsAnyMemberPresent = true;
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->preventCancel_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), "'preventCancel' member of StreamPipeOptions", &mPreventCancel)) {
return false;
}
} else {
mPreventCancel = false;
}
mIsAnyMemberPresent = true;
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->preventClose_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
if (!ValueToPrimitive<bool, eDefault>(cx, temp.ref(), "'preventClose' member of StreamPipeOptions", &mPreventClose)) {
return false;
}
} else {
mPreventClose = false;
}
mIsAnyMemberPresent = true;
if (!isNull) {
if (!JS_GetPropertyById(cx, *object, atomsCache->signal_id, temp.ptr())) {
return false;
}
}
if (!isNull && !temp->isUndefined()) {
mSignal.Construct();
if (temp.ref().isObject()) {
static_assert(IsRefcounted<mozilla::dom::AbortSignal>::value, "We can only store refcounted classes.");
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::AbortSignal, mozilla::dom::AbortSignal>(temp.ptr(), (mSignal.Value()), cx);
if (NS_FAILED(rv)) {
cx.ThrowErrorMessage<MSG_DOES_NOT_IMPLEMENT_INTERFACE>("'signal' member of StreamPipeOptions", "AbortSignal");
return false;
}
}
} else {
cx.ThrowErrorMessage<MSG_NOT_OBJECT>("'signal' member of StreamPipeOptions");
return false;
}
mIsAnyMemberPresent = true;
}
return true;
}
bool
StreamPipeOptions::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
StreamPipeOptions::TraceDictionary(JSTracer* trc)
{
}
StreamPipeOptions&
StreamPipeOptions::operator=(const StreamPipeOptions& aOther)
{
DictionaryBase::operator=(aOther);
mPreventAbort = aOther.mPreventAbort;
mPreventCancel = aOther.mPreventCancel;
mPreventClose = aOther.mPreventClose;
mSignal.Reset();
if (aOther.mSignal.WasPassed()) {
mSignal.Construct(aOther.mSignal.Value());
}
return *this;
}
namespace ReadableStreamAsyncIterator_Binding {
static bool
Wrap(JSContext* aCx, mozilla::dom::binding_detail::AsyncIterableIteratorNative<mozilla::dom::ReadableStream, true>* aObject, JS::MutableHandle<JSObject*> aReflector);
} // namespace ReadableStreamAsyncIterator_Binding
namespace ReadableStream_Binding {
MOZ_CAN_RUN_SCRIPT static bool
from(JSContext* cx, unsigned argc, JS::Value* vp)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"ReadableStream", "from", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
JS::Rooted<JSObject*> obj(cx, &args.callee());
if (!args.requireAtLeast(cx, "ReadableStream.from", 1)) {
return false;
}
GlobalObject global(cx, xpc::XrayAwareCalleeGlobal(obj));
if (global.Failed()) {
return false;
}
JS::Rooted<JS::Value> arg0(cx);
arg0 = args[0];
FastErrorResult rv;
auto result(StrongOrRawPtr<mozilla::dom::ReadableStream>(mozilla::dom::ReadableStream::From(global, arg0, rv)));
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "ReadableStream.from"))) {
return false;
}
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
MOZ_CAN_RUN_SCRIPT static bool
get_locked(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"ReadableStream", "locked", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::ReadableStream*>(void_self);
bool result(MOZ_KnownLive(self)->Locked());
MOZ_ASSERT(!JS_IsExceptionPending(cx));
args.rval().setBoolean(result);
return true;
}
static const JSJitInfo locked_getterinfo = {
{ get_locked },
{ prototypes::id::ReadableStream },
{ PrototypeTraits<prototypes::id::ReadableStream>::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. */
};
MOZ_CAN_RUN_SCRIPT static bool
cancel(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"ReadableStream", "cancel", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::ReadableStream*>(void_self);
JS::Rooted<JS::Value> arg0(cx);
if (args.hasDefined(0)) {
arg0 = args[0];
} else {
arg0 = JS::UndefinedValue();
}
FastErrorResult rv;
auto result(StrongOrRawPtr<Promise>(MOZ_KnownLive(self)->Cancel(cx, arg0, rv)));
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "ReadableStream.cancel"))) {
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 (!ToJSValue(cx, result, args.rval())) {
return false;
}
return true;
}
MOZ_CAN_RUN_SCRIPT static bool
cancel_promiseWrapper(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
bool ok = cancel(cx, obj, void_self, args);
if (ok) {
return true;
}
return ConvertExceptionToPromise(cx, args.rval());
}
static const JSJitInfo cancel_methodinfo = {
{ (JSJitGetterOp)cancel_promiseWrapper },
{ prototypes::id::ReadableStream },
{ PrototypeTraits<prototypes::id::ReadableStream>::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
getReader(JSContext* cx_, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
BindingCallContext cx(cx_, "ReadableStream.getReader");
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"ReadableStream", "getReader", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::ReadableStream*>(void_self);
binding_detail::FastReadableStreamGetReaderOptions arg0;
if (!arg0.Init(cx, (args.hasDefined(0)) ? args[0] : JS::NullHandleValue, "Argument 1", false)) {
return false;
}
FastErrorResult rv;
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->GetReader(Constify(arg0), result, rv))>, "Should be returning void here");
MOZ_KnownLive(self)->GetReader(Constify(arg0), result, rv);
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "ReadableStream.getReader"))) {
return false;
}
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!result.ToJSVal(cx, obj, args.rval())) {
return false;
}
return true;
}
static const JSJitInfo getReader_methodinfo = {
{ (JSJitGetterOp)getReader },
{ prototypes::id::ReadableStream },
{ PrototypeTraits<prototypes::id::ReadableStream>::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
pipeThrough(JSContext* cx_, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
BindingCallContext cx(cx_, "ReadableStream.pipeThrough");
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"ReadableStream", "pipeThrough", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::ReadableStream*>(void_self);
if (!args.requireAtLeast(cx, "ReadableStream.pipeThrough", 1)) {
return false;
}
binding_detail::FastReadableWritablePair arg0;
if (!arg0.Init(cx, args[0], "Argument 1", false)) {
return false;
}
binding_detail::FastStreamPipeOptions arg1;
if (!arg1.Init(cx, (args.hasDefined(1)) ? args[1] : JS::NullHandleValue, "Argument 2", false)) {
return false;
}
FastErrorResult rv;
auto result(StrongOrRawPtr<mozilla::dom::ReadableStream>(MOZ_KnownLive(self)->PipeThrough(Constify(arg0), Constify(arg1), rv)));
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "ReadableStream.pipeThrough"))) {
return false;
}
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
static const JSJitInfo pipeThrough_methodinfo = {
{ (JSJitGetterOp)pipeThrough },
{ prototypes::id::ReadableStream },
{ PrototypeTraits<prototypes::id::ReadableStream>::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
pipeTo(JSContext* cx_, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
BindingCallContext cx(cx_, "ReadableStream.pipeTo");
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"ReadableStream", "pipeTo", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::ReadableStream*>(void_self);
if (!args.requireAtLeast(cx, "ReadableStream.pipeTo", 1)) {
return false;
}
NonNull<mozilla::dom::WritableStream> arg0;
if (args[0].isObject()) {
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::WritableStream, mozilla::dom::WritableStream>(args[0], arg0, cx);
if (NS_FAILED(rv)) {
cx.ThrowErrorMessage<MSG_DOES_NOT_IMPLEMENT_INTERFACE>("Argument 1", "WritableStream");
return false;
}
}
} else {
cx.ThrowErrorMessage<MSG_NOT_OBJECT>("Argument 1");
return false;
}
binding_detail::FastStreamPipeOptions arg1;
if (!arg1.Init(cx, (args.hasDefined(1)) ? args[1] : JS::NullHandleValue, "Argument 2", false)) {
return false;
}
FastErrorResult rv;
auto result(StrongOrRawPtr<Promise>(MOZ_KnownLive(self)->PipeTo(MOZ_KnownLive(NonNullHelper(arg0)), Constify(arg1), rv)));
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "ReadableStream.pipeTo"))) {
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 (!ToJSValue(cx, result, args.rval())) {
return false;
}
return true;
}
MOZ_CAN_RUN_SCRIPT static bool
pipeTo_promiseWrapper(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
bool ok = pipeTo(cx, obj, void_self, args);
if (ok) {
return true;
}
return ConvertExceptionToPromise(cx, args.rval());
}
static const JSJitInfo pipeTo_methodinfo = {
{ (JSJitGetterOp)pipeTo_promiseWrapper },
{ prototypes::id::ReadableStream },
{ PrototypeTraits<prototypes::id::ReadableStream>::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
tee(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"ReadableStream", "tee", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::ReadableStream*>(void_self);
FastErrorResult rv;
nsTArray<StrongPtrForMember<mozilla::dom::ReadableStream>> result;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->Tee(cx, result, rv))>, "Should be returning void here");
MOZ_KnownLive(self)->Tee(cx, result, rv);
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "ReadableStream.tee"))) {
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 (!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 tee_methodinfo = {
{ (JSJitGetterOp)tee },
{ prototypes::id::ReadableStream },
{ PrototypeTraits<prototypes::id::ReadableStream>::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
values(JSContext* cx_, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
BindingCallContext cx(cx_, "ReadableStream.values");
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"ReadableStream", "values", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::ReadableStream*>(void_self);
binding_detail::FastReadableStreamIteratorOptions arg0;
if (!arg0.Init(cx, (args.hasDefined(0)) ? args.get(0) : JS::NullHandleValue, "Argument 1", false)) {
return false;
}
typedef mozilla::dom::binding_detail::WrappableAsyncIterableIterator<mozilla::dom::ReadableStream, true, &ReadableStreamAsyncIterator_Binding::Wrap> itrType;
RefPtr<itrType> result(new itrType(self,
itrType::IteratorType::Values));
{
ErrorResult initError;
self->InitAsyncIteratorData(result->Data(), itrType::IteratorType::Values, arg0, initError);
if (initError.MaybeSetPendingException(cx, "Asynchronous iterator initialization steps for ReadableStream failed")) {
return false;
}
}
static_assert(!std::is_pointer_v<decltype(result)>,
"NewObject implies that we need to keep the object alive with a strong reference.");
if (!WrapNewBindingNonWrapperCachedObject(cx, obj, result, args.rval())) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
static const JSJitInfo::ArgType values_methodinfo_argTypes[] = { JSJitInfo::Object, JSJitInfo::ArgTypeListEnd };
static const JSTypedMethodJitInfo values_methodinfo = {
{
{ (JSJitGetterOp)values },
{ prototypes::id::ReadableStream },
{ PrototypeTraits<prototypes::id::ReadableStream>::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. */
true, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
},
values_methodinfo_argTypes
};
static bool
_addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
{
mozilla::dom::ReadableStream* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::ReadableStream>(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::ReadableStream* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::ReadableStream>(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::ReadableStream>(self);
}
}
static nsWrapperCache*
_getWrapperCache(JS::Handle<JSObject*> obj)
{
mozilla::dom::ReadableStream* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::ReadableStream>(obj);
return self;
}
static size_t
_objectMoved(JSObject* obj, JSObject* old)
{
mozilla::dom::ReadableStream* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::ReadableStream>(obj);
if (self) {
UpdateWrapper(self, self, obj, old);
}
return 0;
}
static const JSFunctionSpec sStaticMethods_specs[] = {
JS_FNSPEC("from", from, nullptr, 1, JSPROP_ENUMERATE, nullptr),
JS_FS_END
};
static const PrefableDisablers sStaticMethods_disablers0 = {
WebIDLPrefIndex::dom_streams_from_enabled, 0, false, OriginTrial(0), nullptr
};
static const Prefable<const JSFunctionSpec> sStaticMethods[] = {
{ &sStaticMethods_disablers0, &sStaticMethods_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 JSFunctionSpec sMethods_specs[] = {
JS_FNSPEC("cancel", (GenericMethod<NormalThisPolicy, ConvertExceptionsToPromises>), reinterpret_cast<const JSJitInfo*>(&cancel_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
JS_FNSPEC("getReader", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&getReader_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
JS_FNSPEC("pipeThrough", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&pipeThrough_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
JS_FNSPEC("pipeTo", (GenericMethod<NormalThisPolicy, ConvertExceptionsToPromises>), reinterpret_cast<const JSJitInfo*>(&pipeTo_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
JS_FNSPEC("tee", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&tee_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
JS_FNSPEC("values", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&values_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(6 <= 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("locked", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &locked_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(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[8];
static PropertyInfo sNativeProperties_propertyInfos[8];
static const NativePropertiesN<3> sNativeProperties = {
true, 0 /* sStaticMethods */,
false, 0,
true, 1 /* sMethods */,
true, 2 /* sAttributes */,
false, 0,
false, 0,
false, 0,
-1,
8,
sNativeProperties_sortedPropertyIndices,
{
{ sStaticMethods, &sNativeProperties_propertyInfos[0] },
{ sMethods, &sNativeProperties_propertyInfos[1] },
{ sAttributes, &sNativeProperties_propertyInfos[7] }
}
};
static_assert(8 < 1ull << (CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount)),
"We have a property info count that is oversized");
bool sNativePropertiesInited = false;
const NativePropertyHooks sNativePropertyHooks = {
nullptr,
{ sNativeProperties.Upcast(), nullptr, &sNativePropertiesInited },
prototypes::id::ReadableStream,
constructors::id::ReadableStream,
&DefaultXrayExpandoObjectClass
};
static bool
_constructor(JSContext* cx_, unsigned argc, JS::Value* vp)
{
BindingCallContext cx(cx_, "ReadableStream constructor");
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"ReadableStream", "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, "ReadableStream");
}
JS::Rooted<JSObject*> desiredProto(cx);
if (!GetDesiredProto(cx, args,
prototypes::id::ReadableStream,
CreateInterfaceObjects,
&desiredProto)) {
return false;
}
GlobalObject global(cx, obj);
if (global.Failed()) {
return false;
}
bool objIsXray = xpc::WrapperFactory::IsXrayWrapper(obj);
Optional<JS::Handle<JSObject*>> arg0;
if (args.hasDefined(0)) {
arg0.Construct(cx);
if (args[0].isObject()) {
arg0.Value() = &args[0].toObject();
} else {
cx.ThrowErrorMessage<MSG_NOT_OBJECT>("Argument 1");
return false;
}
}
binding_detail::FastQueuingStrategy arg1;
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 (arg0.WasPassed()) {
if (!JS_WrapObject(cx, &arg0.Value())) {
return false;
}
}
}
FastErrorResult rv;
auto result(StrongOrRawPtr<mozilla::dom::ReadableStream>(mozilla::dom::ReadableStream::Constructor(global, Constify(arg0), Constify(arg1), rv)));
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "ReadableStream 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::ReadableStream,
PrototypeTraits<prototypes::id::ReadableStream>::Depth,
true,
};
static const DOMIfaceAndProtoJSClass sPrototypeClass = {
{
"ReadableStreamPrototype",
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::ReadableStream,
PrototypeTraits<prototypes::id::ReadableStream>::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 = {
{ "ReadableStream",
JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
&sClassOps,
JS_NULL_CLASS_SPEC,
&sClassExtension,
JS_NULL_OBJECT_OPS
},
{ prototypes::id::ReadableStream, 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, mozilla::dom::ReadableStream>,
&sNativePropertyHooks,
FindAssociatedGlobalForNative<mozilla::dom::ReadableStream>::Get,
GetProtoObjectHandle,
GetCCParticipant<mozilla::dom::ReadableStream>::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, mozilla::dom::ReadableStream* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
static_assert(!std::is_base_of_v<NonRefcountedDOMObject, mozilla::dom::ReadableStream>,
"Shouldn't have wrappercached things that are not refcounted.");
static_assert(std::is_same_v<decltype(aObject), mozilla::dom::ReadableStream*>);
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::ReadableStream> 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::ReadableStream);
JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::ReadableStream);
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(),
nullptr,
"ReadableStream", 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;
}
// Set up aliases on the interface prototype object we just created.
JS::Rooted<JS::Value> aliasedVal(aCx);
if (!JS_GetProperty(aCx, proto, "values", &aliasedVal)) {
*protoCache = nullptr;
if (interfaceCache) {
*interfaceCache = nullptr;
}
return;
}
JS::Rooted<jsid> asyncIteratorId(aCx, JS::GetWellKnownSymbolKey(aCx, JS::SymbolCode::asyncIterator));
if (!JS_DefinePropertyById(aCx, proto, asyncIteratorId, aliasedVal, 0)) {
*protoCache = nullptr;
if (interfaceCache) {
*interfaceCache = nullptr;
}
return;
}
}
JSObject*
GetProtoObject(JSContext* aCx)
{
return GetProtoObjectHandle(aCx);
}
JSObject*
GetConstructorObject(JSContext* aCx)
{
return GetConstructorObjectHandle(aCx);
}
} // namespace ReadableStream_Binding
namespace ReadableStreamAsyncIterator_Binding {
MOZ_CAN_RUN_SCRIPT static bool
next(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"ReadableStreamAsyncIterator", "next", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::binding_detail::AsyncIterableIteratorNative<mozilla::dom::ReadableStream, true>*>(void_self);
FastErrorResult rv;
auto result(StrongOrRawPtr<Promise>(MOZ_KnownLive(self)->Next(cx, rv)));
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "ReadableStreamAsyncIterator.next"))) {
return false;
}
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!ToJSValue(cx, result, args.rval())) {
return false;
}
return true;
}
MOZ_CAN_RUN_SCRIPT static bool
next_promiseWrapper(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
bool ok = next(cx, obj, void_self, args);
if (ok) {
return true;
}
return ConvertExceptionToPromise(cx, args.rval());
}
static const JSJitInfo next_methodinfo = {
{ (JSJitGetterOp)next_promiseWrapper },
{ prototypes::id::ReadableStreamAsyncIterator },
{ PrototypeTraits<prototypes::id::ReadableStreamAsyncIterator>::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
_return_(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"ReadableStreamAsyncIterator", "return", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::binding_detail::AsyncIterableIteratorNative<mozilla::dom::ReadableStream, true>*>(void_self);
JS::Rooted<JS::Value> arg0(cx);
if (args.hasDefined(0)) {
arg0 = args[0];
} else {
arg0 = JS::UndefinedValue();
}
FastErrorResult rv;
auto result(StrongOrRawPtr<Promise>(MOZ_KnownLive(self)->Return(cx, arg0, rv)));
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "ReadableStreamAsyncIterator.return"))) {
return false;
}
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!ToJSValue(cx, result, args.rval())) {
return false;
}
return true;
}
MOZ_CAN_RUN_SCRIPT static bool
_return__promiseWrapper(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
bool ok = _return_(cx, obj, void_self, args);
if (ok) {
return true;
}
return ConvertExceptionToPromise(cx, args.rval());
}
static const JSJitInfo return_methodinfo = {
{ (JSJitGetterOp)_return__promiseWrapper },
{ prototypes::id::ReadableStreamAsyncIterator },
{ PrototypeTraits<prototypes::id::ReadableStreamAsyncIterator>::Depth },
JSJitInfo::Method,
JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_OBJECT, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
false, /* isMovable. Not relevant for setters. */
false, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
static void
_finalize(JS::GCContext* gcx, JSObject* obj)
{
mozilla::dom::binding_detail::AsyncIterableIteratorNative<mozilla::dom::ReadableStream, true>* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::binding_detail::AsyncIterableIteratorNative<mozilla::dom::ReadableStream, true>>(obj);
if (self) {
JS::SetReservedSlot(obj, DOM_OBJECT_SLOT, JS::UndefinedValue());
if (size_t mallocBytes = BindingJSObjectMallocBytes(self)) {
JS::RemoveAssociatedMemory(obj, mallocBytes,
JS::MemoryUse::DOMBinding);
}
AddForDeferredFinalization<mozilla::dom::binding_detail::AsyncIterableIteratorNative<mozilla::dom::ReadableStream, true>>(self);
}
}
static const JSFunctionSpec sMethods_specs[] = {
JS_FNSPEC("next", (GenericMethod<NormalThisPolicy, ConvertExceptionsToPromises>), reinterpret_cast<const JSJitInfo*>(&next_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
JS_FNSPEC("return", (GenericMethod<NormalThisPolicy, ConvertExceptionsToPromises>), reinterpret_cast<const JSJitInfo*>(&return_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(2 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
"We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
static uint16_t sNativeProperties_sortedPropertyIndices[2];
static PropertyInfo sNativeProperties_propertyInfos[2];
static const NativePropertiesN<1> sNativeProperties = {
false, 0,
false, 0,
true, 0 /* sMethods */,
false, 0,
false, 0,
false, 0,
false, 0,
-1,
2,
sNativeProperties_sortedPropertyIndices,
{
{ sMethods, &sNativeProperties_propertyInfos[0] }
}
};
static_assert(2 < 1ull << (CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount)),
"We have a property info count that is oversized");
bool sNativePropertiesInited = false;
const NativePropertyHooks sNativePropertyHooks = {
nullptr,
{ sNativeProperties.Upcast(), nullptr, &sNativePropertiesInited },
prototypes::id::ReadableStreamAsyncIterator,
constructors::id::_ID_Count,
&DefaultXrayExpandoObjectClass
};
static const DOMIfaceAndProtoJSClass sPrototypeClass = {
{
"ReadableStream AsyncIteratorPrototype",
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::ReadableStreamAsyncIterator,
PrototypeTraits<prototypes::id::ReadableStreamAsyncIterator>::Depth,
&sNativePropertyHooks,
JS::GetRealmAsyncIteratorPrototype
};
inline static JS::Handle<JSObject*> GetProtoObjectHandle(JSContext* aCx);
static const JSClassOps sClassOps = {
nullptr, /* addProperty */
nullptr, /* delProperty */
nullptr, /* enumerate */
nullptr, /* newEnumerate */
nullptr, /* resolve */
nullptr, /* mayResolve */
_finalize, /* finalize */
nullptr, /* call */
nullptr, /* construct */
nullptr, /* trace */
};
static const js::ClassExtension sClassExtension = {
nullptr /* objectMovedOp */
};
static const DOMJSClass sClass = {
{ "ReadableStream AsyncIterator",
JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
&sClassOps,
JS_NULL_CLASS_SPEC,
&sClassExtension,
JS_NULL_OBJECT_OPS
},
{ prototypes::id::ReadableStreamAsyncIterator, 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, mozilla::dom::binding_detail::AsyncIterableIteratorNative<mozilla::dom::ReadableStream, true>>,
&sNativePropertyHooks,
FindAssociatedGlobalForNative<mozilla::dom::binding_detail::AsyncIterableIteratorNative<mozilla::dom::ReadableStream, true>>::Get,
GetProtoObjectHandle,
GetCCParticipant<mozilla::dom::binding_detail::AsyncIterableIteratorNative<mozilla::dom::ReadableStream, true>>::Get(),
nullptr,
nullptr
};
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.");
static bool
Wrap(JSContext* aCx, mozilla::dom::binding_detail::AsyncIterableIteratorNative<mozilla::dom::ReadableStream, true>* aObject, JS::MutableHandle<JSObject*> aReflector)
{
static_assert(std::is_same_v<decltype(aObject), mozilla::dom::binding_detail::AsyncIterableIteratorNative<mozilla::dom::ReadableStream, true>*>);
MOZ_ASSERT(ToSupportsIsCorrect(aObject));
JS::Rooted<JSObject*> global(aCx, JS::CurrentGlobalOrNull(aCx));
JS::Handle<JSObject*> proto = GetProtoObjectHandle(aCx);
if (!proto) {
return false;
}
BindingJSObjectCreator<mozilla::dom::binding_detail::AsyncIterableIteratorNative<mozilla::dom::ReadableStream, true>> creator(aCx);
creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
if (!aReflector) {
return false;
}
creator.InitializationSucceeded();
return true;
}
static void
CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
{
JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::ReadableStreamAsyncIterator);
JS::Heap<JSObject*>* interfaceCache = nullptr;
JS::Rooted<JSObject*> parentProto(aCx, JS::GetRealmAsyncIteratorPrototype(aCx));
if (!parentProto) {
return;
}
dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
&sPrototypeClass, protoCache,
nullptr, nullptr, 0, false, Span<const LegacyFactoryFunction, 0>{},
interfaceCache,
sNativeProperties.Upcast(),
nullptr,
"ReadableStream AsyncIterator", aDefineOnGlobal,
nullptr,
false,
nullptr);
}
inline static JS::Handle<JSObject*> GetProtoObjectHandle(JSContext* aCx)
{
/* Get the interface prototype object for this class. This will create the
object as needed. */
return GetPerInterfaceObjectHandle(aCx, prototypes::id::ReadableStreamAsyncIterator,
&CreateInterfaceObjects,
/* aDefineOnGlobal = */ true);
}
} // namespace ReadableStreamAsyncIterator_Binding
} // namespace dom
} // namespace mozilla