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/* THIS FILE IS AUTOGENERATED FROM ReadableStreamDefaultReader.webidl BY Codegen.py - DO NOT EDIT */
#include <type_traits>
#include "AtomList.h"
#include "MainThreadUtils.h"
#include "ReadableStreamDefaultReaderBinding.h"
#include "WrapperFactory.h"
#include "js/CallAndConstruct.h"
#include "js/Exception.h"
#include "js/MapAndSet.h"
#include "js/Object.h"
#include "js/PropertyAndElement.h"
#include "js/PropertyDescriptor.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/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/ToJSValue.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<ReadableStreamType>::Values[1] = {
"bytes"_ns,
};
} // namespace binding_detail
bool
ToJSValue(JSContext* aCx, ReadableStreamType aArgument, JS::MutableHandle<JS::Value> aValue)
{
MOZ_ASSERT(uint32_t(aArgument) < ArrayLength(binding_detail::EnumStrings<ReadableStreamType>::Values));
JSString* resultStr =
JS_NewStringCopyN(aCx, binding_detail::EnumStrings<ReadableStreamType>::Values[uint32_t(aArgument)].BeginReading(),
binding_detail::EnumStrings<ReadableStreamType>::Values[uint32_t(aArgument)].Length());
if (!resultStr) {
return false;
}
aValue.setString(resultStr);
return true;
}
void
ImplCycleCollectionTraverse(nsCycleCollectionTraversalCallback& aCallback, OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader& aUnion, const char* aName, uint32_t aFlags)
{
if (aUnion.IsReadableStreamDefaultReader()) {
ImplCycleCollectionTraverse(aCallback, aUnion.GetAsReadableStreamDefaultReader(), "mReadableStreamDefaultReader", aFlags);
} else if (aUnion.IsReadableStreamBYOBReader()) {
ImplCycleCollectionTraverse(aCallback, aUnion.GetAsReadableStreamBYOBReader(), "mReadableStreamBYOBReader", aFlags);
}
}
void
ImplCycleCollectionUnlink(OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader& aUnion)
{
aUnion.Uninit();
}
bool
ReadableStreamDefaultReaderOrReadableStreamBYOBReader::TrySetToReadableStreamDefaultReader(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
NonNull<mozilla::dom::ReadableStreamDefaultReader>& memberSlot = RawSetAsReadableStreamDefaultReader();
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::ReadableStreamDefaultReader, mozilla::dom::ReadableStreamDefaultReader>(value, memberSlot, cx);
if (NS_FAILED(rv)) {
DestroyReadableStreamDefaultReader();
tryNext = true;
return true;
}
}
}
return true;
}
bool
ReadableStreamDefaultReaderOrReadableStreamBYOBReader::TrySetToReadableStreamDefaultReader(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToReadableStreamDefaultReader(cx, value, tryNext, passedToJSImpl);
}
bool
ReadableStreamDefaultReaderOrReadableStreamBYOBReader::TrySetToReadableStreamBYOBReader(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
NonNull<mozilla::dom::ReadableStreamBYOBReader>& memberSlot = RawSetAsReadableStreamBYOBReader();
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::ReadableStreamBYOBReader, mozilla::dom::ReadableStreamBYOBReader>(value, memberSlot, cx);
if (NS_FAILED(rv)) {
DestroyReadableStreamBYOBReader();
tryNext = true;
return true;
}
}
}
return true;
}
bool
ReadableStreamDefaultReaderOrReadableStreamBYOBReader::TrySetToReadableStreamBYOBReader(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToReadableStreamBYOBReader(cx, value, tryNext, passedToJSImpl);
}
bool
ReadableStreamDefaultReaderOrReadableStreamBYOBReader::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 = !TrySetToReadableStreamDefaultReader(cx, value, tryNext, passedToJSImpl)) || !tryNext ||
(failed = !TrySetToReadableStreamBYOBReader(cx, value, tryNext, passedToJSImpl)) || !tryNext;
}
if (failed) {
return false;
}
if (!done) {
cx.ThrowErrorMessage<MSG_NOT_IN_UNION>(sourceDescription, "ReadableStreamDefaultReader, ReadableStreamBYOBReader");
return false;
}
return true;
}
bool
ReadableStreamDefaultReaderOrReadableStreamBYOBReader::Init(JSContext* cx_, JS::Handle<JS::Value> value, const char* sourceDescription, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return Init(cx, value, sourceDescription, passedToJSImpl);
}
bool
ReadableStreamDefaultReaderOrReadableStreamBYOBReader::ToJSVal(JSContext* cx, JS::Handle<JSObject*> scopeObj, JS::MutableHandle<JS::Value> rval) const
{
switch (mType) {
case eUninitialized: {
return false;
}
case eReadableStreamDefaultReader: {
if (!GetOrCreateDOMReflector(cx, mValue.mReadableStreamDefaultReader.Value(), rval)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
case eReadableStreamBYOBReader: {
if (!GetOrCreateDOMReflector(cx, mValue.mReadableStreamBYOBReader.Value(), rval)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
default: {
return false;
}
}
}
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader(OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader&& aOther)
: mType(eUninitialized)
{
switch (aOther.mType) {
case eUninitialized: {
MOZ_ASSERT(mType == eUninitialized,
"We need to destroy ourselves?");
break;
}
case eReadableStreamDefaultReader: {
mType = eReadableStreamDefaultReader;
mValue.mReadableStreamDefaultReader.SetValue(std::move(aOther.mValue.mReadableStreamDefaultReader.Value()));
break;
}
case eReadableStreamBYOBReader: {
mType = eReadableStreamBYOBReader;
mValue.mReadableStreamBYOBReader.SetValue(std::move(aOther.mValue.mReadableStreamBYOBReader.Value()));
break;
}
}
}
bool
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::TrySetToReadableStreamDefaultReader(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
OwningNonNull<mozilla::dom::ReadableStreamDefaultReader>& memberSlot = RawSetAsReadableStreamDefaultReader();
static_assert(IsRefcounted<mozilla::dom::ReadableStreamDefaultReader>::value, "We can only store refcounted classes.");
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::ReadableStreamDefaultReader, mozilla::dom::ReadableStreamDefaultReader>(value, memberSlot, cx);
if (NS_FAILED(rv)) {
DestroyReadableStreamDefaultReader();
tryNext = true;
return true;
}
}
}
return true;
}
bool
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::TrySetToReadableStreamDefaultReader(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToReadableStreamDefaultReader(cx, value, tryNext, passedToJSImpl);
}
[[nodiscard]] OwningNonNull<mozilla::dom::ReadableStreamDefaultReader>&
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::RawSetAsReadableStreamDefaultReader()
{
if (mType == eReadableStreamDefaultReader) {
return mValue.mReadableStreamDefaultReader.Value();
}
MOZ_ASSERT(mType == eUninitialized);
mType = eReadableStreamDefaultReader;
return mValue.mReadableStreamDefaultReader.SetValue();
}
[[nodiscard]] OwningNonNull<mozilla::dom::ReadableStreamDefaultReader>&
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::SetAsReadableStreamDefaultReader()
{
if (mType == eReadableStreamDefaultReader) {
return mValue.mReadableStreamDefaultReader.Value();
}
Uninit();
mType = eReadableStreamDefaultReader;
return mValue.mReadableStreamDefaultReader.SetValue();
}
void
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::DestroyReadableStreamDefaultReader()
{
MOZ_RELEASE_ASSERT(IsReadableStreamDefaultReader(), "Wrong type!");
mValue.mReadableStreamDefaultReader.Destroy();
mType = eUninitialized;
}
bool
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::TrySetToReadableStreamBYOBReader(BindingCallContext& cx, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
tryNext = false;
{ // scope for memberSlot
OwningNonNull<mozilla::dom::ReadableStreamBYOBReader>& memberSlot = RawSetAsReadableStreamBYOBReader();
static_assert(IsRefcounted<mozilla::dom::ReadableStreamBYOBReader>::value, "We can only store refcounted classes.");
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::ReadableStreamBYOBReader, mozilla::dom::ReadableStreamBYOBReader>(value, memberSlot, cx);
if (NS_FAILED(rv)) {
DestroyReadableStreamBYOBReader();
tryNext = true;
return true;
}
}
}
return true;
}
bool
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::TrySetToReadableStreamBYOBReader(JSContext* cx_, JS::Handle<JS::Value> value, bool& tryNext, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return TrySetToReadableStreamBYOBReader(cx, value, tryNext, passedToJSImpl);
}
[[nodiscard]] OwningNonNull<mozilla::dom::ReadableStreamBYOBReader>&
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::RawSetAsReadableStreamBYOBReader()
{
if (mType == eReadableStreamBYOBReader) {
return mValue.mReadableStreamBYOBReader.Value();
}
MOZ_ASSERT(mType == eUninitialized);
mType = eReadableStreamBYOBReader;
return mValue.mReadableStreamBYOBReader.SetValue();
}
[[nodiscard]] OwningNonNull<mozilla::dom::ReadableStreamBYOBReader>&
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::SetAsReadableStreamBYOBReader()
{
if (mType == eReadableStreamBYOBReader) {
return mValue.mReadableStreamBYOBReader.Value();
}
Uninit();
mType = eReadableStreamBYOBReader;
return mValue.mReadableStreamBYOBReader.SetValue();
}
void
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::DestroyReadableStreamBYOBReader()
{
MOZ_RELEASE_ASSERT(IsReadableStreamBYOBReader(), "Wrong type!");
mValue.mReadableStreamBYOBReader.Destroy();
mType = eUninitialized;
}
bool
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::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 = !TrySetToReadableStreamDefaultReader(cx, value, tryNext, passedToJSImpl)) || !tryNext ||
(failed = !TrySetToReadableStreamBYOBReader(cx, value, tryNext, passedToJSImpl)) || !tryNext;
}
if (failed) {
return false;
}
if (!done) {
cx.ThrowErrorMessage<MSG_NOT_IN_UNION>(sourceDescription, "ReadableStreamDefaultReader, ReadableStreamBYOBReader");
return false;
}
return true;
}
bool
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::Init(JSContext* cx_, JS::Handle<JS::Value> value, const char* sourceDescription, bool passedToJSImpl)
{
BindingCallContext cx(cx_, nullptr);
return Init(cx, value, sourceDescription, passedToJSImpl);
}
void
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::Uninit()
{
switch (mType) {
case eUninitialized: {
break;
}
case eReadableStreamDefaultReader: {
DestroyReadableStreamDefaultReader();
break;
}
case eReadableStreamBYOBReader: {
DestroyReadableStreamBYOBReader();
break;
}
}
}
bool
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::ToJSVal(JSContext* cx, JS::Handle<JSObject*> scopeObj, JS::MutableHandle<JS::Value> rval) const
{
switch (mType) {
case eUninitialized: {
return false;
}
case eReadableStreamDefaultReader: {
if (!GetOrCreateDOMReflector(cx, mValue.mReadableStreamDefaultReader.Value(), rval)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
case eReadableStreamBYOBReader: {
if (!GetOrCreateDOMReflector(cx, mValue.mReadableStreamBYOBReader.Value(), rval)) {
MOZ_ASSERT(JS_IsExceptionPending(cx));
return false;
}
return true;
}
default: {
return false;
}
}
}
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader&
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::operator=(OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader&& aOther)
{
this->~OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader();
new (this) OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader (std::move(aOther));
return *this;
}
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader&
OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader::operator=(const OwningReadableStreamDefaultReaderOrReadableStreamBYOBReader& aOther)
{
switch (aOther.mType) {
case eUninitialized: {
MOZ_ASSERT(mType == eUninitialized,
"We need to destroy ourselves?");
break;
}
case eReadableStreamDefaultReader: {
SetAsReadableStreamDefaultReader() = aOther.GetAsReadableStreamDefaultReader();
break;
}
case eReadableStreamBYOBReader: {
SetAsReadableStreamBYOBReader() = aOther.GetAsReadableStreamBYOBReader();
break;
}
}
return *this;
}
ReadableStreamReadResult::ReadableStreamReadResult()
{
// Safe to pass a null context if we pass a null value
Init();
}
bool
ReadableStreamReadResult::InitIds(JSContext* cx, ReadableStreamReadResultAtoms* atomsCache)
{
MOZ_ASSERT(reinterpret_cast<jsid*>(atomsCache)->isVoid());
// Initialize these in reverse order so that any failure leaves the first one
// uninitialized.
if (!atomsCache->value_id.init(cx, "value") ||
!atomsCache->done_id.init(cx, "done")) {
return false;
}
return true;
}
bool
ReadableStreamReadResult::Init(const char* sourceDescription, bool passedToJSImpl)
{
{
// scope for any temporaries our default value setting needs.
mValue = JS::UndefinedValue();
}
mIsAnyMemberPresent = true;
return true;
}
bool
ReadableStreamReadResult::ToObjectInternal(JSContext* cx, JS::MutableHandle<JS::Value> rval) const
{
ReadableStreamReadResultAtoms* atomsCache = GetAtomCache<ReadableStreamReadResultAtoms>(cx);
if (reinterpret_cast<jsid*>(atomsCache)->isVoid() &&
!InitIds(cx, atomsCache)) {
return false;
}
JS::Rooted<JSObject*> obj(cx, JS_NewPlainObject(cx));
if (!obj) {
return false;
}
rval.set(JS::ObjectValue(*obj));
if (mDone.WasPassed()) {
do {
// block for our 'break' successCode and scope for 'temp' and 'currentValue'
JS::Rooted<JS::Value> temp(cx);
bool const & currentValue = mDone.InternalValue();
temp.setBoolean(currentValue);
if (!JS_DefinePropertyById(cx, obj, atomsCache->done_id, temp, JSPROP_ENUMERATE)) {
return false;
}
break;
} while(false);
}
do {
// block for our 'break' successCode and scope for 'temp' and 'currentValue'
JS::Rooted<JS::Value> temp(cx);
JS::Value const & currentValue = mValue;
JS::ExposeValueToActiveJS(currentValue);
temp.set(currentValue);
if (!MaybeWrapValue(cx, &temp)) {
return false;
}
if (!JS_DefinePropertyById(cx, obj, atomsCache->value_id, temp, JSPROP_ENUMERATE)) {
return false;
}
break;
} while(false);
return true;
}
void
ReadableStreamReadResult::TraceDictionary(JSTracer* trc)
{
JS::TraceRoot(trc, &mValue, "ReadableStreamReadResult.mValue");
}
namespace ReadableStreamDefaultReader_Binding {
MOZ_CAN_RUN_SCRIPT static bool
read(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"ReadableStreamDefaultReader", "read", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::ReadableStreamDefaultReader*>(void_self);
FastErrorResult rv;
auto result(StrongOrRawPtr<Promise>(MOZ_KnownLive(self)->Read(rv)));
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "ReadableStreamDefaultReader.read"))) {
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
read_promiseWrapper(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
bool ok = read(cx, obj, void_self, args);
if (ok) {
return true;
}
return ConvertExceptionToPromise(cx, args.rval());
}
static const JSJitInfo read_methodinfo = {
{ (JSJitGetterOp)read_promiseWrapper },
{ prototypes::id::ReadableStreamDefaultReader },
{ PrototypeTraits<prototypes::id::ReadableStreamDefaultReader>::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
releaseLock(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"ReadableStreamDefaultReader", "releaseLock", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::ReadableStreamDefaultReader*>(void_self);
FastErrorResult rv;
// NOTE: This assert does NOT call the function.
static_assert(std::is_void_v<decltype(MOZ_KnownLive(self)->ReleaseLock(rv))>, "Should be returning void here");
MOZ_KnownLive(self)->ReleaseLock(rv);
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "ReadableStreamDefaultReader.releaseLock"))) {
return false;
}
MOZ_ASSERT(!JS_IsExceptionPending(cx));
args.rval().setUndefined();
return true;
}
static const JSJitInfo releaseLock_methodinfo = {
{ (JSJitGetterOp)releaseLock },
{ prototypes::id::ReadableStreamDefaultReader },
{ PrototypeTraits<prototypes::id::ReadableStreamDefaultReader>::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_closed(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"ReadableStreamDefaultReader", "closed", DOM, cx,
uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) |
uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS));
auto* self = static_cast<mozilla::dom::ReadableStreamDefaultReader*>(void_self);
auto result(StrongOrRawPtr<Promise>(MOZ_KnownLive(self)->Closed()));
MOZ_ASSERT(!JS_IsExceptionPending(cx));
if (!ToJSValue(cx, result, args.rval())) {
return false;
}
return true;
}
MOZ_CAN_RUN_SCRIPT static bool
get_closed_promiseWrapper(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, JSJitGetterCallArgs args)
{
bool ok = get_closed(cx, obj, void_self, args);
if (ok) {
return true;
}
return ConvertExceptionToPromise(cx, args.rval());
}
static const JSJitInfo closed_getterinfo = {
{ get_closed_promiseWrapper },
{ prototypes::id::ReadableStreamDefaultReader },
{ PrototypeTraits<prototypes::id::ReadableStreamDefaultReader>::Depth },
JSJitInfo::Getter,
JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
JSVAL_TYPE_OBJECT, /* returnType. Not relevant for setters. */
false, /* isInfallible. False in setters. */
false, /* isMovable. Not relevant for setters. */
false, /* isEliminatable. Not relevant for setters. */
false, /* isAlwaysInSlot. Only relevant for getters. */
false, /* isLazilyCachedInSlot. Only relevant for getters. */
false, /* isTypedMethod. Only relevant for methods. */
0 /* Reserved slot index, if we're stored in a slot, else 0. */
};
MOZ_CAN_RUN_SCRIPT static bool
cancel(JSContext* cx, JS::Handle<JSObject*> obj, void* void_self, const JSJitMethodCallArgs& args)
{
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"ReadableStreamDefaultReader", "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::ReadableStreamDefaultReader*>(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, "ReadableStreamDefaultReader.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::ReadableStreamDefaultReader },
{ PrototypeTraits<prototypes::id::ReadableStreamDefaultReader>::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 bool
_addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
{
mozilla::dom::ReadableStreamDefaultReader* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::ReadableStreamDefaultReader>(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::ReadableStreamDefaultReader* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::ReadableStreamDefaultReader>(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::ReadableStreamDefaultReader>(self);
}
}
static nsWrapperCache*
_getWrapperCache(JS::Handle<JSObject*> obj)
{
mozilla::dom::ReadableStreamDefaultReader* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::ReadableStreamDefaultReader>(obj);
return self;
}
static size_t
_objectMoved(JSObject* obj, JSObject* old)
{
mozilla::dom::ReadableStreamDefaultReader* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::ReadableStreamDefaultReader>(obj);
if (self) {
UpdateWrapper(self, self, obj, old);
}
return 0;
}
static const JSFunctionSpec sMethods_specs[] = {
JS_FNSPEC("read", (GenericMethod<NormalThisPolicy, ConvertExceptionsToPromises>), reinterpret_cast<const JSJitInfo*>(&read_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
JS_FNSPEC("releaseLock", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&releaseLock_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
JS_FNSPEC("cancel", (GenericMethod<NormalThisPolicy, ConvertExceptionsToPromises>), reinterpret_cast<const JSJitInfo*>(&cancel_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
JS_FS_END
};
static const Prefable<const JSFunctionSpec> sMethods[] = {
{ nullptr, &sMethods_specs[0] },
{ nullptr, nullptr }
};
static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
"We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
static_assert(3 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
"We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
static const JSPropertySpec sAttributes_specs[] = {
JSPropertySpec::nativeAccessors("closed", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ConvertExceptionsToPromises>, &closed_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[4];
static PropertyInfo sNativeProperties_propertyInfos[4];
static const NativePropertiesN<2> sNativeProperties = {
false, 0,
false, 0,
true, 0 /* sMethods */,
true, 1 /* sAttributes */,
false, 0,
false, 0,
false, 0,
-1,
4,
sNativeProperties_sortedPropertyIndices,
{
{ sMethods, &sNativeProperties_propertyInfos[0] },
{ sAttributes, &sNativeProperties_propertyInfos[3] }
}
};
static_assert(4 < 1ull << (CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount)),
"We have a property info count that is oversized");
bool sNativePropertiesInited = false;
const NativePropertyHooks sNativePropertyHooks = {
nullptr,
{ sNativeProperties.Upcast(), nullptr, &sNativePropertiesInited },
prototypes::id::ReadableStreamDefaultReader,
constructors::id::ReadableStreamDefaultReader,
&DefaultXrayExpandoObjectClass
};
static bool
_constructor(JSContext* cx_, unsigned argc, JS::Value* vp)
{
BindingCallContext cx(cx_, "ReadableStreamDefaultReader constructor");
AUTO_PROFILER_LABEL_DYNAMIC_FAST(
"ReadableStreamDefaultReader", "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, "ReadableStreamDefaultReader");
}
JS::Rooted<JSObject*> desiredProto(cx);
if (!GetDesiredProto(cx, args,
prototypes::id::ReadableStreamDefaultReader,
CreateInterfaceObjects,
&desiredProto)) {
return false;
}
if (!args.requireAtLeast(cx, "ReadableStreamDefaultReader constructor", 1)) {
return false;
}
GlobalObject global(cx, obj);
if (global.Failed()) {
return false;
}
bool objIsXray = xpc::WrapperFactory::IsXrayWrapper(obj);
NonNull<mozilla::dom::ReadableStream> arg0;
if (args[0].isObject()) {
{
// Our JSContext should be in the right global to do unwrapping in.
nsresult rv = UnwrapObject<prototypes::id::ReadableStream, mozilla::dom::ReadableStream>(args[0], arg0, cx);
if (NS_FAILED(rv)) {
cx.ThrowErrorMessage<MSG_DOES_NOT_IMPLEMENT_INTERFACE>("Argument 1", "ReadableStream");
return false;
}
}
} else {
cx.ThrowErrorMessage<MSG_NOT_OBJECT>("Argument 1");
return false;
}
Maybe<JSAutoRealm> ar;
if (objIsXray) {
// Since our object is an Xray, we can just CheckedUnwrapStatic:
// we know Xrays have no dynamic unwrap behavior.
obj = js::CheckedUnwrapStatic(obj);
if (!obj) {
return false;
}
ar.emplace(cx, obj);
if (!JS_WrapObject(cx, &desiredProto)) {
return false;
}
}
FastErrorResult rv;
auto result(StrongOrRawPtr<mozilla::dom::ReadableStreamDefaultReader>(mozilla::dom::ReadableStreamDefaultReader::Constructor(global, MOZ_KnownLive(NonNullHelper(arg0)), rv)));
if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx, "ReadableStreamDefaultReader 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::ReadableStreamDefaultReader,
PrototypeTraits<prototypes::id::ReadableStreamDefaultReader>::Depth,
true,
};
static const DOMIfaceAndProtoJSClass sPrototypeClass = {
{
"ReadableStreamDefaultReaderPrototype",
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::ReadableStreamDefaultReader,
PrototypeTraits<prototypes::id::ReadableStreamDefaultReader>::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 = {
{ "ReadableStreamDefaultReader",
JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
&sClassOps,
JS_NULL_CLASS_SPEC,
&sClassExtension,
JS_NULL_OBJECT_OPS
},
{ prototypes::id::ReadableStreamDefaultReader, 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::ReadableStreamDefaultReader>,
&sNativePropertyHooks,
FindAssociatedGlobalForNative<mozilla::dom::ReadableStreamDefaultReader>::Get,
GetProtoObjectHandle,
GetCCParticipant<mozilla::dom::ReadableStreamDefaultReader>::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::ReadableStreamDefaultReader* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
static_assert(!std::is_base_of_v<NonRefcountedDOMObject, mozilla::dom::ReadableStreamDefaultReader>,
"Shouldn't have wrappercached things that are not refcounted.");
static_assert(std::is_same_v<decltype(aObject), mozilla::dom::ReadableStreamDefaultReader*>);
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::ReadableStreamDefaultReader> 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::ReadableStreamDefaultReader);
JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::ReadableStreamDefaultReader);
JS::Rooted<JSObject*> parentProto(aCx, JS::GetRealmObjectPrototype(aCx));
if (!parentProto) {
return;
}
JS::Rooted<JSObject*> constructorProto(aCx, JS::GetRealmFunctionPrototype(aCx));
if (!constructorProto) {
return;
}
dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
&sPrototypeClass, protoCache,
constructorProto, &sInterfaceObjectInfo, 1, false, Span<const LegacyFactoryFunction, 0>{},
interfaceCache,
sNativeProperties.Upcast(),
nullptr,
"ReadableStreamDefaultReader", aDefineOnGlobal,
nullptr,
false,
nullptr);
}
JSObject*
GetConstructorObject(JSContext* aCx)
{
return GetConstructorObjectHandle(aCx);
}
} // namespace ReadableStreamDefaultReader_Binding
} // namespace dom
} // namespace mozilla