AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity

Remove deprecated AccessorSignatures

Browse Source 
Bug: chromium:1310790
Change-Id: I739161f47fc1fc32d832f106d5ef6b7df4aed213
Fixed: chromium:1310790
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3654096
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Stephen Röttger <sroettger@google.com>
Cr-Commit-Position: refs/heads/main@{#80639}
This commit is contained in:
Stephen Roettger 2022-05-19 12:09:33 +02:00 committed by V8 LUCI CQ
parent 3904606c1a
commit 4d6ddf1b5f
12 changed files with 67 additions and 261 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

67
include/v8-template.h
View File

@ -14,7 +14,6 @@
namespace v8 {
class AccessorSignature;
class CFunction;
class FunctionTemplate;
class ObjectTemplate;
@ -83,28 +82,7 @@ class V8_EXPORT Template : public Data {
* cross-context access.
* \param attribute The attributes of the property for which an accessor
* is added.
* \param signature The signature describes valid receivers for the accessor
* and is used to perform implicit instance checks against them. If the
* receiver is incompatible (i.e. is not an instance of the constructor as
* defined by FunctionTemplate::HasInstance()), an implicit TypeError is
* thrown and no callback is invoked.
*/
V8_DEPRECATED("Do signature check in accessor")
void SetNativeDataProperty(
Local<String> name, AccessorGetterCallback getter,
AccessorSetterCallback setter, Local<Value> data,
PropertyAttribute attribute, Local<AccessorSignature> signature,
AccessControl settings = DEFAULT,
SideEffectType getter_side_effect_type = SideEffectType::kHasSideEffect,
SideEffectType setter_side_effect_type = SideEffectType::kHasSideEffect);
V8_DEPRECATED("Do signature check in accessor")
void SetNativeDataProperty(
Local<Name> name, AccessorNameGetterCallback getter,
AccessorNameSetterCallback setter, Local<Value> data,
PropertyAttribute attribute, Local<AccessorSignature> signature,
AccessControl settings = DEFAULT,
SideEffectType getter_side_effect_type = SideEffectType::kHasSideEffect,
SideEffectType setter_side_effect_type = SideEffectType::kHasSideEffect);
void SetNativeDataProperty(
Local<String> name, AccessorGetterCallback getter,
AccessorSetterCallback setter = nullptr,
@ -821,27 +799,7 @@ class V8_EXPORT ObjectTemplate : public Template {
* cross-context access.
* \param attribute The attributes of the property for which an accessor
* is added.
* \param signature The signature describes valid receivers for the accessor
* and is used to perform implicit instance checks against them. If the
* receiver is incompatible (i.e. is not an instance of the constructor as
* defined by FunctionTemplate::HasInstance()), an implicit TypeError is
* thrown and no callback is invoked.
*/
V8_DEPRECATED("Do signature check in accessor")
void SetAccessor(
Local<String> name, AccessorGetterCallback getter,
AccessorSetterCallback setter, Local<Value> data, AccessControl settings,
PropertyAttribute attribute, Local<AccessorSignature> signature,
SideEffectType getter_side_effect_type = SideEffectType::kHasSideEffect,
SideEffectType setter_side_effect_type = SideEffectType::kHasSideEffect);
V8_DEPRECATED("Do signature check in accessor")
void SetAccessor(
Local<Name> name, AccessorNameGetterCallback getter,
AccessorNameSetterCallback setter, Local<Value> data,
AccessControl settings, PropertyAttribute attribute,
Local<AccessorSignature> signature,
SideEffectType getter_side_effect_type = SideEffectType::kHasSideEffect,
SideEffectType setter_side_effect_type = SideEffectType::kHasSideEffect);
void SetAccessor(
Local<String> name, AccessorGetterCallback getter,
AccessorSetterCallback setter = nullptr,
@ -1019,24 +977,6 @@ class V8_EXPORT Signature : public Data {
static void CheckCast(Data* that);
};
/**
* An AccessorSignature specifies which receivers are valid parameters
* to an accessor callback.
*/
class V8_EXPORT AccessorSignature : public Data {
public:
static Local<AccessorSignature> New(
Isolate* isolate,
Local<FunctionTemplate> receiver = Local<FunctionTemplate>());
V8_INLINE static AccessorSignature* Cast(Data* data);
private:
AccessorSignature();
static void CheckCast(Data* that);
};
// --- Implementation ---
void Template::Set(Isolate* isolate, const char* name, Local<Data> value,
@ -1067,13 +1007,6 @@ Signature* Signature::Cast(Data* data) {
return reinterpret_cast<Signature*>(data);
}
AccessorSignature* AccessorSignature::Cast(Data* data) {
#ifdef V8_ENABLE_CHECKS
CheckCast(data);
#endif
return reinterpret_cast<AccessorSignature*>(data);
}
} // namespace v8
#endif // INCLUDE_V8_TEMPLATE_H_

1
src/api/api-inl.h
View File

@ -96,7 +96,6 @@ TYPED_ARRAYS(MAKE_TO_LOCAL_TYPED_ARRAY)
MAKE_TO_LOCAL(ToLocal, FunctionTemplateInfo, FunctionTemplate)
MAKE_TO_LOCAL(ToLocal, ObjectTemplateInfo, ObjectTemplate)
MAKE_TO_LOCAL(SignatureToLocal, FunctionTemplateInfo, Signature)
MAKE_TO_LOCAL(AccessorSignatureToLocal, FunctionTemplateInfo, AccessorSignature)
MAKE_TO_LOCAL(MessageToLocal, Object, Message)
MAKE_TO_LOCAL(PromiseToLocal, JSObject, Promise)
MAKE_TO_LOCAL(StackTraceToLocal, FixedArray, StackTrace)

81
src/api/api.cc
View File

@ -1435,11 +1435,6 @@ Local<Signature> Signature::New(Isolate* v8_isolate,
return Utils::SignatureToLocal(Utils::OpenHandle(*receiver));
}
Local<AccessorSignature> AccessorSignature::New(
Isolate* v8_isolate, Local<FunctionTemplate> receiver) {
return Utils::AccessorSignatureToLocal(Utils::OpenHandle(*receiver));
}
#define SET_FIELD_WRAPPED(i_isolate, obj, setter, cdata) \
do { \
i::Handle<i::Object> foreign = FromCData(i_isolate, cdata); \
@ -1496,8 +1491,7 @@ template <typename Getter, typename Setter>
i::Handle<i::AccessorInfo> MakeAccessorInfo(
i::Isolate* i_isolate, v8::Local<Name> name, Getter getter, Setter setter,
v8::Local<Value> data, v8::AccessControl settings,
v8::Local<AccessorSignature> signature, bool is_special_data_property,
bool replace_on_access) {
bool is_special_data_property, bool replace_on_access) {
i::Handle<i::AccessorInfo> obj = i_isolate->factory()->NewAccessorInfo();
SET_FIELD_WRAPPED(i_isolate, obj, set_getter, getter);
DCHECK_IMPLIES(replace_on_access,
@ -1529,9 +1523,6 @@ i::Handle<i::AccessorInfo> MakeAccessorInfo(
if (settings & ALL_CAN_READ) raw_obj.set_all_can_read(true);
if (settings & ALL_CAN_WRITE) raw_obj.set_all_can_write(true);
raw_obj.set_initial_property_attributes(i::NONE);
if (!signature.IsEmpty()) {
raw_obj.set_expected_receiver_type(*Utils::OpenHandle(*signature));
}
return obj;
}
@ -1632,7 +1623,6 @@ template <typename Getter, typename Setter, typename Data, typename Template>
void TemplateSetAccessor(Template* template_obj, v8::Local<Name> name,
Getter getter, Setter setter, Data data,
AccessControl settings, PropertyAttribute attribute,
v8::Local<AccessorSignature> signature,
bool is_special_data_property, bool replace_on_access,
SideEffectType getter_side_effect_type,
SideEffectType setter_side_effect_type) {
@ -1642,7 +1632,7 @@ void TemplateSetAccessor(Template* template_obj, v8::Local<Name> name,
i::HandleScope scope(i_isolate);
i::Handle<i::AccessorInfo> accessor_info =
MakeAccessorInfo(i_isolate, name, getter, setter, data, settings,
signature, is_special_data_property, replace_on_access);
is_special_data_property, replace_on_access);
{
i::DisallowGarbageCollection no_gc;
i::AccessorInfo raw = *accessor_info;
@ -1664,18 +1654,7 @@ void Template::SetNativeDataProperty(v8::Local<String> name,
SideEffectType getter_side_effect_type,
SideEffectType setter_side_effect_type) {
TemplateSetAccessor(this, name, getter, setter, data, settings, attribute,
Local<AccessorSignature>(), true, false,
getter_side_effect_type, setter_side_effect_type);
}
void Template::SetNativeDataProperty(
v8::Local<String> name, AccessorGetterCallback getter,
AccessorSetterCallback setter, v8::Local<Value> data,
PropertyAttribute attribute, v8::Local<AccessorSignature> signature,
AccessControl settings, SideEffectType getter_side_effect_type,
SideEffectType setter_side_effect_type) {
TemplateSetAccessor(this, name, getter, setter, data, settings, attribute,
signature, true, false, getter_side_effect_type,
true, false, getter_side_effect_type,
setter_side_effect_type);
}
@ -1688,18 +1667,7 @@ void Template::SetNativeDataProperty(v8::Local<Name> name,
SideEffectType getter_side_effect_type,
SideEffectType setter_side_effect_type) {
TemplateSetAccessor(this, name, getter, setter, data, settings, attribute,
Local<AccessorSignature>(), true, false,
getter_side_effect_type, setter_side_effect_type);
}
void Template::SetNativeDataProperty(
v8::Local<Name> name, AccessorNameGetterCallback getter,
AccessorNameSetterCallback setter, v8::Local<Value> data,
PropertyAttribute attribute, v8::Local<AccessorSignature> signature,
AccessControl settings, SideEffectType getter_side_effect_type,
SideEffectType setter_side_effect_type) {
TemplateSetAccessor(this, name, getter, setter, data, settings, attribute,
signature, true, false, getter_side_effect_type,
true, false, getter_side_effect_type,
setter_side_effect_type);
}
@ -1711,8 +1679,8 @@ void Template::SetLazyDataProperty(v8::Local<Name> name,
SideEffectType setter_side_effect_type) {
TemplateSetAccessor(this, name, getter,
static_cast<AccessorNameSetterCallback>(nullptr), data,
DEFAULT, attribute, Local<AccessorSignature>(), true,
true, getter_side_effect_type, setter_side_effect_type);
DEFAULT, attribute, true, true, getter_side_effect_type,
setter_side_effect_type);
}
void Template::SetIntrinsicDataProperty(Local<Name> name, Intrinsic intrinsic,
@ -1734,7 +1702,6 @@ void ObjectTemplate::SetAccessor(v8::Local<String> name,
SideEffectType getter_side_effect_type,
SideEffectType setter_side_effect_type) {
TemplateSetAccessor(this, name, getter, setter, data, settings, attribute,
Local<AccessorSignature>(),
i::FLAG_disable_old_api_accessors, false,
getter_side_effect_type, setter_side_effect_type);
}
@ -1747,37 +1714,10 @@ void ObjectTemplate::SetAccessor(v8::Local<Name> name,
SideEffectType getter_side_effect_type,
SideEffectType setter_side_effect_type) {
TemplateSetAccessor(this, name, getter, setter, data, settings, attribute,
Local<AccessorSignature>(),
i::FLAG_disable_old_api_accessors, false,
getter_side_effect_type, setter_side_effect_type);
}
void ObjectTemplate::SetAccessor(v8::Local<String> name,
AccessorGetterCallback getter,
AccessorSetterCallback setter,
v8::Local<Value> data, AccessControl settings,
PropertyAttribute attribute,
v8::Local<AccessorSignature> signature,
SideEffectType getter_side_effect_type,
SideEffectType setter_side_effect_type) {
TemplateSetAccessor(this, name, getter, setter, data, settings, attribute,
signature, i::FLAG_disable_old_api_accessors, false,
getter_side_effect_type, setter_side_effect_type);
}
void ObjectTemplate::SetAccessor(v8::Local<Name> name,
AccessorNameGetterCallback getter,
AccessorNameSetterCallback setter,
v8::Local<Value> data, AccessControl settings,
PropertyAttribute attribute,
v8::Local<AccessorSignature> signature,
SideEffectType getter_side_effect_type,
SideEffectType setter_side_effect_type) {
TemplateSetAccessor(this, name, getter, setter, data, settings, attribute,
signature, i::FLAG_disable_old_api_accessors, false,
getter_side_effect_type, setter_side_effect_type);
}
namespace {
template <typename Getter, typename Setter, typename Query, typename Descriptor,
typename Deleter, typename Enumerator, typename Definer>
@ -4870,10 +4810,9 @@ static Maybe<bool> ObjectSetAccessor(
if (!Utils::OpenHandle(self)->IsJSObject()) return Just(false);
i::Handle<i::JSObject> obj =
i::Handle<i::JSObject>::cast(Utils::OpenHandle(self));
v8::Local<AccessorSignature> signature;
i::Handle<i::AccessorInfo> info =
MakeAccessorInfo(i_isolate, name, getter, setter, data, settings,
signature, is_special_data_property, replace_on_access);
is_special_data_property, replace_on_access);
info->set_getter_side_effect_type(getter_side_effect_type);
info->set_setter_side_effect_type(setter_side_effect_type);
if (info.is_null()) return Nothing<bool>();
@ -6719,12 +6658,6 @@ void v8::Signature::CheckCast(Data* that) {
"Value is not a Signature");
}
void v8::AccessorSignature::CheckCast(Data* that) {
i::Handle<i::Object> obj = Utils::OpenHandle(that);
Utils::ApiCheck(obj->IsFunctionTemplateInfo(), "v8::AccessorSignature::Cast",
"Value is not an AccessorSignature");
}
MaybeLocal<v8::Function> FunctionTemplate::GetFunction(Local<Context> context) {
PREPARE_FOR_EXECUTION(context, FunctionTemplate, GetFunction, Function);
auto self = Utils::OpenHandle(this);

4
src/api/api.h
View File

@ -28,7 +28,6 @@
namespace v8 {
class AccessorSignature;
class Extension;
class Signature;
class Template;
@ -99,7 +98,6 @@ class RegisteredExtension {
V(FunctionTemplate, FunctionTemplateInfo) \
V(ObjectTemplate, ObjectTemplateInfo) \
V(Signature, FunctionTemplateInfo) \
V(AccessorSignature, FunctionTemplateInfo) \
V(Data, Object) \
V(RegExp, JSRegExp) \
V(Object, JSReceiver) \
@ -244,8 +242,6 @@ class Utils {
v8::internal::Handle<v8::internal::ObjectTemplateInfo> obj);
static inline Local<Signature> SignatureToLocal(
v8::internal::Handle<v8::internal::FunctionTemplateInfo> obj);
static inline Local<AccessorSignature> AccessorSignatureToLocal(
v8::internal::Handle<v8::internal::FunctionTemplateInfo> obj);
static inline Local<External> ExternalToLocal(
v8::internal::Handle<v8::internal::JSObject> obj);
static inline Local<Function> CallableToLocal(

9
src/ic/ic.cc
View File

@ -1108,7 +1108,6 @@ Handle<Object> LoadIC::ComputeHandler(LookupIterator* lookup) {
}
if (v8::ToCData<Address>(info->getter()) == kNullAddress ||
!AccessorInfo::IsCompatibleReceiverMap(info, map) ||
!holder->HasFastProperties() ||
(info->is_sloppy() && !receiver->IsJSReceiver())) {
TRACE_HANDLER_STATS(isolate(), LoadIC_SlowStub);
@ -2042,12 +2041,6 @@ MaybeObjectHandle StoreIC::ComputeHandler(LookupIterator* lookup) {
TRACE_HANDLER_STATS(isolate(), StoreIC_SlowStub);
return MaybeObjectHandle(StoreHandler::StoreSlow(isolate()));
}
if (!AccessorInfo::IsCompatibleReceiverMap(info,
lookup_start_object_map())) {
set_slow_stub_reason("incompatible receiver type");
TRACE_HANDLER_STATS(isolate(), StoreIC_SlowStub);
return MaybeObjectHandle(StoreHandler::StoreSlow(isolate()));
}
Handle<Smi> smi_handler = StoreHandler::StoreNativeDataProperty(
isolate(), lookup->GetAccessorIndex());
@ -3307,8 +3300,6 @@ RUNTIME_FUNCTION(Runtime_StoreCallbackProperty) {
}
#endif
DCHECK(info->IsCompatibleReceiver(*receiver));
PropertyCallbackArguments arguments(isolate, info->data(), *receiver, *holder,
Nothing<ShouldThrow>());
arguments.CallAccessorSetter(info, name, value);

11
src/objects/api-callbacks-inl.h
View File

@ -77,17 +77,6 @@ void AccessorInfo::set_setter_side_effect_type(SideEffectType value) {
BIT_FIELD_ACCESSORS(AccessorInfo, flags, initial_property_attributes,
AccessorInfo::InitialAttributesBits)
bool AccessorInfo::IsCompatibleReceiver(Object receiver) {
if (!HasExpectedReceiverType()) return true;
if (!receiver.IsJSObject()) return false;
return FunctionTemplateInfo::cast(expected_receiver_type())
.IsTemplateFor(JSObject::cast(receiver).map());
}
bool AccessorInfo::HasExpectedReceiverType() {
return expected_receiver_type().IsFunctionTemplateInfo();
}
BOOL_ACCESSORS(InterceptorInfo, flags, can_intercept_symbols,
CanInterceptSymbolsBit::kShift)
BOOL_ACCESSORS(InterceptorInfo, flags, all_can_read, AllCanReadBit::kShift)

2
src/objects/api-callbacks.h
View File

@ -71,8 +71,6 @@ class AccessorInfo : public TorqueGeneratedAccessorInfo<AccessorInfo, Struct> {
using BodyDescriptor = StructBodyDescriptor;
private:
inline bool HasExpectedReceiverType();
// Bit positions in |flags|.
DEFINE_TORQUE_GENERATED_ACCESSOR_INFO_FLAGS()

1
src/objects/api-callbacks.tq
View File

@ -51,7 +51,6 @@ bitfield struct AccessorInfoFlags extends uint31 {
extern class AccessorInfo extends Struct {
name: Name;
flags: SmiTagged<AccessorInfoFlags>;
expected_receiver_type: Object;
setter: NonNullForeign|Zero;
getter: NonNullForeign|Zero;
// This either points at the same as above, or a trampoline in case we are

19
src/objects/objects.cc
View File

@ -1418,12 +1418,6 @@ MaybeHandle<Object> Object::GetPropertyWithAccessor(LookupIterator* it) {
if (structure->IsAccessorInfo()) {
Handle<Name> name = it->GetName();
Handle<AccessorInfo> info = Handle<AccessorInfo>::cast(structure);
if (!info->IsCompatibleReceiver(*receiver)) {
THROW_NEW_ERROR(isolate,
NewTypeError(MessageTemplate::kIncompatibleMethodReceiver,
name, receiver),
Object);
}
if (!info->has_getter()) return isolate->factory()->undefined_value();
@ -1492,14 +1486,6 @@ Address CallHandlerInfo::redirected_callback() const {
return ExternalReference::Create(&fun, type).address();
}
bool AccessorInfo::IsCompatibleReceiverMap(Handle<AccessorInfo> info,
Handle<Map> map) {
if (!info->HasExpectedReceiverType()) return true;
if (!map->IsJSObjectMap()) return false;
return FunctionTemplateInfo::cast(info->expected_receiver_type())
.IsTemplateFor(*map);
}
Maybe<bool> Object::SetPropertyWithAccessor(
LookupIterator* it, Handle<Object> value,
Maybe<ShouldThrow> maybe_should_throw) {
@ -1521,11 +1507,6 @@ Maybe<bool> Object::SetPropertyWithAccessor(
if (structure->IsAccessorInfo()) {
Handle<Name> name = it->GetName();
Handle<AccessorInfo> info = Handle<AccessorInfo>::cast(structure);
if (!info->IsCompatibleReceiver(*receiver)) {
isolate->Throw(*isolate->factory()->NewTypeError(
MessageTemplate::kIncompatibleMethodReceiver, name, receiver));
return Nothing<bool>();
}
if (!info->has_setter()) {
// TODO(verwaest): We should not get here anymore once all AccessorInfos

3
src/profiler/heap-snapshot-generator.cc
View File

@ -1484,9 +1484,6 @@ void V8HeapExplorer::ExtractAccessorInfoReferences(HeapEntry* entry,
AccessorInfo accessor_info) {
SetInternalReference(entry, "name", accessor_info.name(),
AccessorInfo::kNameOffset);
SetInternalReference(entry, "expected_receiver_type",
accessor_info.expected_receiver_type(),
AccessorInfo::kExpectedReceiverTypeOffset);
SetInternalReference(entry, "getter", accessor_info.getter(),
AccessorInfo::kGetterOffset);
SetInternalReference(entry, "setter", accessor_info.setter(),

10
test/cctest/test-serialize.cc
View File

@ -3596,10 +3596,6 @@ UNINITIALIZED_TEST(SnapshotCreatorAddData) {
v8::Local<v8::Signature> signature =
v8::Signature::New(isolate, v8::FunctionTemplate::New(isolate));
v8::Local<v8::AccessorSignature> accessor_signature =
v8::AccessorSignature::New(isolate,
v8::FunctionTemplate::New(isolate));
v8::ScriptOrigin origin(isolate, v8_str(""), {}, {}, {}, {}, {}, {}, {},
true);
v8::ScriptCompiler::Source source(
@ -3625,7 +3621,6 @@ UNINITIALIZED_TEST(SnapshotCreatorAddData) {
CHECK_EQ(3u, creator.AddData(v8::FunctionTemplate::New(isolate)));
CHECK_EQ(4u, creator.AddData(private_symbol));
CHECK_EQ(5u, creator.AddData(signature));
CHECK_EQ(6u, creator.AddData(accessor_signature));
}
blob =
@ -3714,11 +3709,6 @@ UNINITIALIZED_TEST(SnapshotCreatorAddData) {
isolate->GetDataFromSnapshotOnce<v8::Signature>(5).ToLocalChecked();
CHECK(isolate->GetDataFromSnapshotOnce<v8::Signature>(5).IsEmpty());
isolate->GetDataFromSnapshotOnce<v8::AccessorSignature>(6)
.ToLocalChecked();
CHECK(
isolate->GetDataFromSnapshotOnce<v8::AccessorSignature>(6).IsEmpty());
CHECK(isolate->GetDataFromSnapshotOnce<v8::Value>(7).IsEmpty());
}
isolate->Dispose();

120
tools/v8heapconst.py
View File

@ -500,66 +500,66 @@ KNOWN_OBJECTS = {
("read_only_space", 0x03661): "NativeScopeInfo",
("read_only_space", 0x03679): "HashSeed",
("old_space", 0x04241): "ArgumentsIteratorAccessor",
("old_space", 0x04285): "ArrayLengthAccessor",
("old_space", 0x042c9): "BoundFunctionLengthAccessor",
("old_space", 0x0430d): "BoundFunctionNameAccessor",
("old_space", 0x04351): "ErrorStackAccessor",
("old_space", 0x04395): "FunctionArgumentsAccessor",
("old_space", 0x043d9): "FunctionCallerAccessor",
("old_space", 0x0441d): "FunctionNameAccessor",
("old_space", 0x04461): "FunctionLengthAccessor",
("old_space", 0x044a5): "FunctionPrototypeAccessor",
("old_space", 0x044e9): "StringLengthAccessor",
("old_space", 0x0452d): "WrappedFunctionLengthAccessor",
("old_space", 0x04571): "WrappedFunctionNameAccessor",
("old_space", 0x045b5): "InvalidPrototypeValidityCell",
("old_space", 0x045bd): "EmptyScript",
("old_space", 0x04601): "ManyClosuresCell",
("old_space", 0x0460d): "ArrayConstructorProtector",
("old_space", 0x04621): "NoElementsProtector",
("old_space", 0x04635): "MegaDOMProtector",
("old_space", 0x04649): "IsConcatSpreadableProtector",
("old_space", 0x0465d): "ArraySpeciesProtector",
("old_space", 0x04671): "TypedArraySpeciesProtector",
("old_space", 0x04685): "PromiseSpeciesProtector",
("old_space", 0x04699): "RegExpSpeciesProtector",
("old_space", 0x046ad): "StringLengthProtector",
("old_space", 0x046c1): "ArrayIteratorProtector",
("old_space", 0x046d5): "ArrayBufferDetachingProtector",
("old_space", 0x046e9): "PromiseHookProtector",
("old_space", 0x046fd): "PromiseResolveProtector",
("old_space", 0x04711): "MapIteratorProtector",
("old_space", 0x04725): "PromiseThenProtector",
("old_space", 0x04739): "SetIteratorProtector",
("old_space", 0x0474d): "StringIteratorProtector",
("old_space", 0x04761): "SingleCharacterStringCache",
("old_space", 0x04b69): "StringSplitCache",
("old_space", 0x04f71): "RegExpMultipleCache",
("old_space", 0x05379): "BuiltinsConstantsTable",
("old_space", 0x057ad): "AsyncFunctionAwaitRejectSharedFun",
("old_space", 0x057d1): "AsyncFunctionAwaitResolveSharedFun",
("old_space", 0x057f5): "AsyncGeneratorAwaitRejectSharedFun",
("old_space", 0x05819): "AsyncGeneratorAwaitResolveSharedFun",
("old_space", 0x0583d): "AsyncGeneratorYieldResolveSharedFun",
("old_space", 0x05861): "AsyncGeneratorReturnResolveSharedFun",
("old_space", 0x05885): "AsyncGeneratorReturnClosedRejectSharedFun",
("old_space", 0x058a9): "AsyncGeneratorReturnClosedResolveSharedFun",
("old_space", 0x058cd): "AsyncIteratorValueUnwrapSharedFun",
("old_space", 0x058f1): "PromiseAllResolveElementSharedFun",
("old_space", 0x05915): "PromiseAllSettledResolveElementSharedFun",
("old_space", 0x05939): "PromiseAllSettledRejectElementSharedFun",
("old_space", 0x0595d): "PromiseAnyRejectElementSharedFun",
("old_space", 0x05981): "PromiseCapabilityDefaultRejectSharedFun",
("old_space", 0x059a5): "PromiseCapabilityDefaultResolveSharedFun",
("old_space", 0x059c9): "PromiseCatchFinallySharedFun",
("old_space", 0x059ed): "PromiseGetCapabilitiesExecutorSharedFun",
("old_space", 0x05a11): "PromiseThenFinallySharedFun",
("old_space", 0x05a35): "PromiseThrowerFinallySharedFun",
("old_space", 0x05a59): "PromiseValueThunkFinallySharedFun",
("old_space", 0x05a7d): "ProxyRevokeSharedFun",
("old_space", 0x05aa1): "ShadowRealmImportValueFulfilledSFI",
("old_space", 0x05ac5): "SourceTextModuleExecuteAsyncModuleFulfilledSFI",
("old_space", 0x05ae9): "SourceTextModuleExecuteAsyncModuleRejectedSFI",
("old_space", 0x04281): "ArrayLengthAccessor",
("old_space", 0x042c1): "BoundFunctionLengthAccessor",
("old_space", 0x04301): "BoundFunctionNameAccessor",
("old_space", 0x04341): "ErrorStackAccessor",
("old_space", 0x04381): "FunctionArgumentsAccessor",
("old_space", 0x043c1): "FunctionCallerAccessor",
("old_space", 0x04401): "FunctionNameAccessor",
("old_space", 0x04441): "FunctionLengthAccessor",
("old_space", 0x04481): "FunctionPrototypeAccessor",
("old_space", 0x044c1): "StringLengthAccessor",
("old_space", 0x04501): "WrappedFunctionLengthAccessor",
("old_space", 0x04541): "WrappedFunctionNameAccessor",
("old_space", 0x04581): "InvalidPrototypeValidityCell",
("old_space", 0x04589): "EmptyScript",
("old_space", 0x045cd): "ManyClosuresCell",
("old_space", 0x045d9): "ArrayConstructorProtector",
("old_space", 0x045ed): "NoElementsProtector",
("old_space", 0x04601): "MegaDOMProtector",
("old_space", 0x04615): "IsConcatSpreadableProtector",
("old_space", 0x04629): "ArraySpeciesProtector",
("old_space", 0x0463d): "TypedArraySpeciesProtector",
("old_space", 0x04651): "PromiseSpeciesProtector",
("old_space", 0x04665): "RegExpSpeciesProtector",
("old_space", 0x04679): "StringLengthProtector",
("old_space", 0x0468d): "ArrayIteratorProtector",
("old_space", 0x046a1): "ArrayBufferDetachingProtector",
("old_space", 0x046b5): "PromiseHookProtector",
("old_space", 0x046c9): "PromiseResolveProtector",
("old_space", 0x046dd): "MapIteratorProtector",
("old_space", 0x046f1): "PromiseThenProtector",
("old_space", 0x04705): "SetIteratorProtector",
("old_space", 0x04719): "StringIteratorProtector",
("old_space", 0x0472d): "SingleCharacterStringCache",
("old_space", 0x04b35): "StringSplitCache",
("old_space", 0x04f3d): "RegExpMultipleCache",
("old_space", 0x05345): "BuiltinsConstantsTable",
("old_space", 0x05779): "AsyncFunctionAwaitRejectSharedFun",
("old_space", 0x0579d): "AsyncFunctionAwaitResolveSharedFun",
("old_space", 0x057c1): "AsyncGeneratorAwaitRejectSharedFun",
("old_space", 0x057e5): "AsyncGeneratorAwaitResolveSharedFun",
("old_space", 0x05809): "AsyncGeneratorYieldResolveSharedFun",
("old_space", 0x0582d): "AsyncGeneratorReturnResolveSharedFun",
("old_space", 0x05851): "AsyncGeneratorReturnClosedRejectSharedFun",
("old_space", 0x05875): "AsyncGeneratorReturnClosedResolveSharedFun",
("old_space", 0x05899): "AsyncIteratorValueUnwrapSharedFun",
("old_space", 0x058bd): "PromiseAllResolveElementSharedFun",
("old_space", 0x058e1): "PromiseAllSettledResolveElementSharedFun",
("old_space", 0x05905): "PromiseAllSettledRejectElementSharedFun",
("old_space", 0x05929): "PromiseAnyRejectElementSharedFun",
("old_space", 0x0594d): "PromiseCapabilityDefaultRejectSharedFun",
("old_space", 0x05971): "PromiseCapabilityDefaultResolveSharedFun",
("old_space", 0x05995): "PromiseCatchFinallySharedFun",
("old_space", 0x059b9): "PromiseGetCapabilitiesExecutorSharedFun",
("old_space", 0x059dd): "PromiseThenFinallySharedFun",
("old_space", 0x05a01): "PromiseThrowerFinallySharedFun",
("old_space", 0x05a25): "PromiseValueThunkFinallySharedFun",
("old_space", 0x05a49): "ProxyRevokeSharedFun",
("old_space", 0x05a6d): "ShadowRealmImportValueFulfilledSFI",
("old_space", 0x05a91): "SourceTextModuleExecuteAsyncModuleFulfilledSFI",
("old_space", 0x05ab5): "SourceTextModuleExecuteAsyncModuleRejectedSFI",
}
# Lower 32 bits of first page addresses for various heap spaces.