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chromium / v8 / v8.git / 16f20e1e3658f2089b57cdfa5eb810ab2558ca3d / . / src / init / bootstrapper.cc
blob: 5b047e453969cc2845e24046abd9a6995b88fb39 [file] [log] [blame]
// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/init/bootstrapper.h"
#include "src/api/api-inl.h"
#include "src/api/api-natives.h"
#include "src/base/hashmap.h"
#include "src/base/ieee754.h"
#include "src/builtins/accessors.h"
#include "src/codegen/compiler.h"
#include "src/common/globals.h"
#include "src/debug/debug.h"
#include "src/execution/isolate-inl.h"
#include "src/execution/microtask-queue.h"
#include "src/execution/protectors.h"
#include "src/extensions/cputracemark-extension.h"
#include "src/extensions/externalize-string-extension.h"
#include "src/extensions/gc-extension.h"
#include "src/extensions/ignition-statistics-extension.h"
#include "src/extensions/statistics-extension.h"
#include "src/extensions/trigger-failure-extension.h"
#include "src/logging/runtime-call-stats-scope.h"
#include "src/objects/instance-type.h"
#include "src/objects/js-array.h"
#include "src/objects/objects.h"
#include "src/sandbox/testing.h"
#ifdef ENABLE_VTUNE_TRACEMARK
#include "src/extensions/vtunedomain-support-extension.h"
#endif // ENABLE_VTUNE_TRACEMARK
#include "src/heap/heap-inl.h"
#include "src/logging/counters.h"
#include "src/logging/log.h"
#include "src/numbers/math-random.h"
#include "src/objects/api-callbacks.h"
#include "src/objects/arguments.h"
#include "src/objects/function-kind.h"
#include "src/objects/hash-table-inl.h"
#ifdef V8_INTL_SUPPORT
#include "src/objects/intl-objects.h"
#endif // V8_INTL_SUPPORT
#include "src/objects/js-array-buffer-inl.h"
#include "src/objects/js-array-inl.h"
#include "src/objects/js-atomics-synchronization.h"
#include "src/objects/js-iterator-helpers.h"
#ifdef V8_INTL_SUPPORT
#include "src/objects/js-break-iterator.h"
#include "src/objects/js-collator.h"
#include "src/objects/js-date-time-format.h"
#include "src/objects/js-display-names.h"
#include "src/objects/js-duration-format.h"
#include "src/objects/js-list-format.h"
#include "src/objects/js-locale.h"
#include "src/objects/js-number-format.h"
#include "src/objects/js-plural-rules.h"
#endif // V8_INTL_SUPPORT
#include "src/objects/js-regexp-string-iterator.h"
#include "src/objects/js-regexp.h"
#include "src/objects/js-shadow-realm.h"
#ifdef V8_INTL_SUPPORT
#include "src/objects/js-relative-time-format.h"
#include "src/objects/js-segment-iterator.h"
#include "src/objects/js-segmenter.h"
#include "src/objects/js-segments.h"
#endif // V8_INTL_SUPPORT
#include "src/codegen/script-details.h"
#include "src/objects/js-raw-json.h"
#include "src/objects/js-shared-array.h"
#include "src/objects/js-struct.h"
#include "src/objects/js-temporal-objects-inl.h"
#include "src/objects/js-weak-refs.h"
#include "src/objects/ordered-hash-table.h"
#include "src/objects/property-cell.h"
#include "src/objects/property-descriptor.h"
#include "src/objects/slots-inl.h"
#include "src/objects/swiss-name-dictionary-inl.h"
#include "src/objects/templates.h"
#include "src/snapshot/snapshot.h"
#include "src/zone/zone-hashmap.h"
#if V8_ENABLE_WEBASSEMBLY
#include "src/wasm/wasm-js.h"
#endif // V8_ENABLE_WEBASSEMBLY
namespace v8 {
namespace internal {
void SourceCodeCache::Initialize(Isolate* isolate, bool create_heap_objects) {
cache_ = create_heap_objects ? ReadOnlyRoots(isolate).empty_fixed_array()
: Tagged<FixedArray>();
}
void SourceCodeCache::Iterate(RootVisitor* v) {
v->VisitRootPointer(Root::kExtensions, nullptr, FullObjectSlot(&cache_));
}
bool SourceCodeCache::Lookup(Isolate* isolate, base::Vector<const char> name,
Handle<SharedFunctionInfo>* handle) {
for (int i = 0; i < cache_.length(); i += 2) {
SeqOneByteString str = SeqOneByteString::cast(cache_.get(i));
if (str.IsOneByteEqualTo(name)) {
*handle = Handle<SharedFunctionInfo>(
SharedFunctionInfo::cast(cache_.get(i + 1)), isolate);
return true;
}
}
return false;
}
void SourceCodeCache::Add(Isolate* isolate, base::Vector<const char> name,
Handle<SharedFunctionInfo> shared) {
Factory* factory = isolate->factory();
HandleScope scope(isolate);
int length = cache_.length();
Handle<FixedArray> new_array =
factory->NewFixedArray(length + 2, AllocationType::kOld);
cache_.CopyTo(0, *new_array, 0, cache_.length());
cache_ = *new_array;
Handle<String> str =
factory
->NewStringFromOneByte(base::Vector<const uint8_t>::cast(name),
AllocationType::kOld)
.ToHandleChecked();
DCHECK(!str.is_null());
cache_.set(length, *str);
cache_.set(length + 1, *shared);
Script::cast(shared->script()).set_type(type_);
}
Bootstrapper::Bootstrapper(Isolate* isolate)
: isolate_(isolate),
nesting_(0),
extensions_cache_(Script::Type::kExtension) {}
void Bootstrapper::Initialize(bool create_heap_objects) {
extensions_cache_.Initialize(isolate_, create_heap_objects);
}
static const char* GCFunctionName() {
bool flag_given =
v8_flags.expose_gc_as != nullptr && strlen(v8_flags.expose_gc_as) != 0;
return flag_given ? v8_flags.expose_gc_as : "gc";
}
static bool isValidCpuTraceMarkFunctionName() {
return v8_flags.expose_cputracemark_as != nullptr &&
strlen(v8_flags.expose_cputracemark_as) != 0;
}
void Bootstrapper::InitializeOncePerProcess() {
v8::RegisterExtension(std::make_unique<GCExtension>(GCFunctionName()));
v8::RegisterExtension(std::make_unique<ExternalizeStringExtension>());
v8::RegisterExtension(std::make_unique<StatisticsExtension>());
v8::RegisterExtension(std::make_unique<TriggerFailureExtension>());
v8::RegisterExtension(std::make_unique<IgnitionStatisticsExtension>());
if (isValidCpuTraceMarkFunctionName()) {
v8::RegisterExtension(std::make_unique<CpuTraceMarkExtension>(
v8_flags.expose_cputracemark_as));
}
#ifdef ENABLE_VTUNE_TRACEMARK
v8::RegisterExtension(
std::make_unique<VTuneDomainSupportExtension>("vtunedomainmark"));
#endif // ENABLE_VTUNE_TRACEMARK
}
void Bootstrapper::TearDown() {
extensions_cache_.Initialize(isolate_, false); // Yes, symmetrical
}
class Genesis {
public:
Genesis(Isolate* isolate, MaybeHandle<JSGlobalProxy> maybe_global_proxy,
v8::Local<v8::ObjectTemplate> global_proxy_template,
size_t context_snapshot_index,
v8::DeserializeEmbedderFieldsCallback embedder_fields_deserializer,
v8::MicrotaskQueue* microtask_queue);
Genesis(Isolate* isolate, MaybeHandle<JSGlobalProxy> maybe_global_proxy,
v8::Local<v8::ObjectTemplate> global_proxy_template);
~Genesis() = default;
Isolate* isolate() const { return isolate_; }
Factory* factory() const { return isolate_->factory(); }
Builtins* builtins() const { return isolate_->builtins(); }
Heap* heap() const { return isolate_->heap(); }
Handle<Context> result() { return result_; }
Handle<JSGlobalProxy> global_proxy() { return global_proxy_; }
private:
Handle<NativeContext> native_context() { return native_context_; }
// Creates some basic objects. Used for creating a context from scratch.
void CreateRoots();
// Creates the empty function. Used for creating a context from scratch.
Handle<JSFunction> CreateEmptyFunction();
// Returns the %ThrowTypeError% intrinsic function.
// See ES#sec-%throwtypeerror% for details.
Handle<JSFunction> GetThrowTypeErrorIntrinsic();
void CreateSloppyModeFunctionMaps(Handle<JSFunction> empty);
void CreateStrictModeFunctionMaps(Handle<JSFunction> empty);
void CreateObjectFunction(Handle<JSFunction> empty);
void CreateIteratorMaps(Handle<JSFunction> empty);
void CreateAsyncIteratorMaps(Handle<JSFunction> empty);
void CreateAsyncFunctionMaps(Handle<JSFunction> empty);
void CreateJSProxyMaps();
// Make the "arguments" and "caller" properties throw a TypeError on access.
void AddRestrictedFunctionProperties(Handle<JSFunction> empty);
// Creates the global objects using the global proxy and the template passed
// in through the API. We call this regardless of whether we are building a
// context from scratch or using a deserialized one from the context snapshot
// but in the latter case we don't use the objects it produces directly, as
// we have to use the deserialized ones that are linked together with the
// rest of the context snapshot. At the end we link the global proxy and the
// context to each other.
Handle<JSGlobalObject> CreateNewGlobals(
v8::Local<v8::ObjectTemplate> global_proxy_template,
Handle<JSGlobalProxy> global_proxy);
// Similarly, we want to use the global that has been created by the templates
// passed through the API. The global from the snapshot is detached from the
// other objects in the snapshot.
void HookUpGlobalObject(Handle<JSGlobalObject> global_object);
// Hooks the given global proxy into the context in the case we do not
// replace the global object from the deserialized native context.
void HookUpGlobalProxy(Handle<JSGlobalProxy> global_proxy);
// The native context has a ScriptContextTable that store declarative bindings
// made in script scopes. Add a "this" binding to that table pointing to the
// global proxy.
void InstallGlobalThisBinding();
// New context initialization. Used for creating a context from scratch.
void InitializeGlobal(Handle<JSGlobalObject> global_object,
Handle<JSFunction> empty_function);
void InitializeExperimentalGlobal();
void InitializeIteratorFunctions();
void InitializeCallSiteBuiltins();
void InitializeConsole(Handle<JSObject> extras_binding);
#define DECLARE_FEATURE_INITIALIZATION(id, descr) void InitializeGlobal_##id();
HARMONY_INPROGRESS(DECLARE_FEATURE_INITIALIZATION)
HARMONY_STAGED(DECLARE_FEATURE_INITIALIZATION)
HARMONY_SHIPPING(DECLARE_FEATURE_INITIALIZATION)
#undef DECLARE_FEATURE_INITIALIZATION
void InitializeGlobal_regexp_linear_flag();
void InitializeGlobal_sharedarraybuffer();
enum ArrayBufferKind { ARRAY_BUFFER, SHARED_ARRAY_BUFFER };
Handle<JSFunction> CreateArrayBuffer(Handle<String> name,
ArrayBufferKind array_buffer_kind);
bool InstallABunchOfRandomThings();
bool InstallExtrasBindings();
Handle<JSFunction> InstallTypedArray(const char* name,
ElementsKind elements_kind,
InstanceType constructor_type,
int rab_gsab_initial_map_index);
void InitializeMapCaches();
enum ExtensionTraversalState { UNVISITED, VISITED, INSTALLED };
class ExtensionStates {
public:
ExtensionStates();
ExtensionStates(const ExtensionStates&) = delete;
ExtensionStates& operator=(const ExtensionStates&) = delete;
ExtensionTraversalState get_state(RegisteredExtension* extension);
void set_state(RegisteredExtension* extension,
ExtensionTraversalState state);
private:
base::HashMap map_;
};
// Used both for deserialized and from-scratch contexts to add the extensions
// provided.
static bool InstallExtensions(Isolate* isolate,
Handle<Context> native_context,
v8::ExtensionConfiguration* extensions);
static bool InstallAutoExtensions(Isolate* isolate,
ExtensionStates* extension_states);
static bool InstallRequestedExtensions(Isolate* isolate,
v8::ExtensionConfiguration* extensions,
ExtensionStates* extension_states);
static bool InstallExtension(Isolate* isolate, const char* name,
ExtensionStates* extension_states);
static bool InstallExtension(Isolate* isolate,
v8::RegisteredExtension* current,
ExtensionStates* extension_states);
static bool InstallSpecialObjects(Isolate* isolate,
Handle<Context> native_context);
bool ConfigureApiObject(Handle<JSObject> object,
Handle<ObjectTemplateInfo> object_template);
bool ConfigureGlobalObject(
v8::Local<v8::ObjectTemplate> global_proxy_template);
// Migrates all properties from the 'from' object to the 'to'
// object and overrides the prototype in 'to' with the one from
// 'from'.
void TransferObject(Handle<JSObject> from, Handle<JSObject> to);
void TransferNamedProperties(Handle<JSObject> from, Handle<JSObject> to);
void TransferIndexedProperties(Handle<JSObject> from, Handle<JSObject> to);
Handle<Map> CreateInitialMapForArraySubclass(int size,
int inobject_properties);
static bool CompileExtension(Isolate* isolate, v8::Extension* extension);
Isolate* isolate_;
Handle<Context> result_;
Handle<NativeContext> native_context_;
Handle<JSGlobalProxy> global_proxy_;
// %ThrowTypeError%. See ES#sec-%throwtypeerror% for details.
Handle<JSFunction> restricted_properties_thrower_;
BootstrapperActive active_;
friend class Bootstrapper;
};
void Bootstrapper::Iterate(RootVisitor* v) {
extensions_cache_.Iterate(v);
v->Synchronize(VisitorSynchronization::kExtensions);
}
Handle<Context> Bootstrapper::CreateEnvironment(
MaybeHandle<JSGlobalProxy> maybe_global_proxy,
v8::Local<v8::ObjectTemplate> global_proxy_template,
v8::ExtensionConfiguration* extensions, size_t context_snapshot_index,
v8::DeserializeEmbedderFieldsCallback embedder_fields_deserializer,
v8::MicrotaskQueue* microtask_queue) {
HandleScope scope(isolate_);
Handle<Context> env;
{
Genesis genesis(isolate_, maybe_global_proxy, global_proxy_template,
context_snapshot_index, embedder_fields_deserializer,
microtask_queue);
env = genesis.result();
if (env.is_null() || !InstallExtensions(env, extensions)) {
return Handle<Context>();
}
}
LogAllMaps();
isolate_->heap()->NotifyBootstrapComplete();
return scope.CloseAndEscape(env);
}
Handle<JSGlobalProxy> Bootstrapper::NewRemoteContext(
MaybeHandle<JSGlobalProxy> maybe_global_proxy,
v8::Local<v8::ObjectTemplate> global_proxy_template) {
HandleScope scope(isolate_);
Handle<JSGlobalProxy> global_proxy;
{
Genesis genesis(isolate_, maybe_global_proxy, global_proxy_template);
global_proxy = genesis.global_proxy();
if (global_proxy.is_null()) return Handle<JSGlobalProxy>();
}
LogAllMaps();
return scope.CloseAndEscape(global_proxy);
}
void Bootstrapper::LogAllMaps() {
if (!v8_flags.log_maps || isolate_->initialized_from_snapshot()) return;
// Log all created Map objects that are on the heap. For snapshots the Map
// logging happens during deserialization in order to avoid printing Maps
// multiple times during partial deserialization.
LOG(isolate_, LogAllMaps());
}
namespace {
#ifdef DEBUG
bool IsFunctionMapOrSpecialBuiltin(Handle<Map> map, Builtin builtin,
Handle<Context> context) {
// During bootstrapping some of these maps could be not created yet.
return ((*map == context->get(Context::STRICT_FUNCTION_MAP_INDEX)) ||
(*map == context->get(
Context::STRICT_FUNCTION_WITHOUT_PROTOTYPE_MAP_INDEX)) ||
(*map ==
context->get(
Context::STRICT_FUNCTION_WITH_READONLY_PROTOTYPE_MAP_INDEX)) ||
// Check if it's a creation of an empty or Proxy function during
// bootstrapping.
(builtin == Builtin::kEmptyFunction ||
builtin == Builtin::kProxyConstructor));
}
#endif // DEBUG
V8_NOINLINE Handle<JSFunction> CreateFunctionForBuiltin(Isolate* isolate,
Handle<String> name,
Handle<Map> map,
Builtin builtin) {
Factory* factory = isolate->factory();
Handle<NativeContext> context(isolate->native_context());
DCHECK(IsFunctionMapOrSpecialBuiltin(map, builtin, context));
Handle<SharedFunctionInfo> info =
factory->NewSharedFunctionInfoForBuiltin(name, builtin);
info->set_language_mode(LanguageMode::kStrict);
return Factory::JSFunctionBuilder{isolate, info, context}
.set_map(map)
.Build();
}
V8_NOINLINE Handle<JSFunction> CreateFunctionForBuiltinWithPrototype(
Isolate* isolate, Handle<String> name, Builtin builtin,
Handle<HeapObject> prototype, InstanceType type, int instance_size,
int inobject_properties, MutableMode prototype_mutability) {
Factory* factory = isolate->factory();
Handle<NativeContext> context(isolate->native_context());
Handle<Map> map =
prototype_mutability == MUTABLE
? isolate->strict_function_map()
: isolate->strict_function_with_readonly_prototype_map();
DCHECK(IsFunctionMapOrSpecialBuiltin(map, builtin, context));
Handle<SharedFunctionInfo> info =
factory->NewSharedFunctionInfoForBuiltin(name, builtin);
info->set_language_mode(LanguageMode::kStrict);
info->set_expected_nof_properties(inobject_properties);
Handle<JSFunction> result =
Factory::JSFunctionBuilder{isolate, info, context}.set_map(map).Build();
ElementsKind elements_kind;
switch (type) {
case JS_ARRAY_TYPE:
elements_kind = PACKED_SMI_ELEMENTS;
break;
case JS_ARGUMENTS_OBJECT_TYPE:
elements_kind = PACKED_ELEMENTS;
break;
default:
elements_kind = TERMINAL_FAST_ELEMENTS_KIND;
break;
}
Handle<Map> initial_map =
factory->NewMap(type, instance_size, elements_kind, inobject_properties);
initial_map->SetConstructor(*result);
if (type == JS_FUNCTION_TYPE) {
DCHECK_EQ(instance_size, JSFunction::kSizeWithPrototype);
// Since we are creating an initial map for JSFunction objects with
// prototype slot, set the respective bit.
initial_map->set_has_prototype_slot(true);
}
// TODO(littledan): Why do we have this is_generator test when
// NewFunctionPrototype already handles finding an appropriately
// shared prototype?
if (!IsResumableFunction(info->kind()) && prototype->IsTheHole(isolate)) {
prototype = factory->NewFunctionPrototype(result);
}
JSFunction::SetInitialMap(isolate, result, initial_map, prototype);
return result;
}
V8_NOINLINE Handle<JSFunction> CreateFunctionForBuiltinWithoutPrototype(
Isolate* isolate, Handle<String> name, Builtin builtin) {
Factory* factory = isolate->factory();
Handle<NativeContext> context(isolate->native_context());
Handle<Map> map = isolate->strict_function_without_prototype_map();
DCHECK(IsFunctionMapOrSpecialBuiltin(map, builtin, context));
Handle<SharedFunctionInfo> info =
factory->NewSharedFunctionInfoForBuiltin(name, builtin);
info->set_language_mode(LanguageMode::kStrict);
return Factory::JSFunctionBuilder{isolate, info, context}
.set_map(map)
.Build();
}
V8_NOINLINE Handle<JSFunction> CreateFunction(
Isolate* isolate, Handle<String> name, InstanceType type, int instance_size,
int inobject_properties, Handle<HeapObject> prototype, Builtin builtin) {
DCHECK(Builtins::HasJSLinkage(builtin));
Handle<JSFunction> result = CreateFunctionForBuiltinWithPrototype(
isolate, name, builtin, prototype, type, instance_size,
inobject_properties, IMMUTABLE);
// Make the JSFunction's prototype object fast.
JSObject::MakePrototypesFast(handle(result->prototype(), isolate),
kStartAtReceiver, isolate);
// Make the resulting JSFunction object fast.
JSObject::MakePrototypesFast(result, kStartAtReceiver, isolate);
result->shared().set_native(true);
return result;
}
V8_NOINLINE Handle<JSFunction> CreateFunction(
Isolate* isolate, const char* name, InstanceType type, int instance_size,
int inobject_properties, Handle<HeapObject> prototype, Builtin builtin) {
return CreateFunction(isolate,
isolate->factory()->InternalizeUtf8String(name), type,
instance_size, inobject_properties, prototype, builtin);
}
V8_NOINLINE Handle<JSFunction> InstallFunction(
Isolate* isolate, Handle<JSObject> target, Handle<String> name,
InstanceType type, int instance_size, int inobject_properties,
Handle<HeapObject> prototype, Builtin call) {
DCHECK(Builtins::HasJSLinkage(call));
Handle<JSFunction> function = CreateFunction(
isolate, name, type, instance_size, inobject_properties, prototype, call);
JSObject::AddProperty(isolate, target, name, function, DONT_ENUM);
return function;
}
V8_NOINLINE Handle<JSFunction> InstallFunction(
Isolate* isolate, Handle<JSObject> target, const char* name,
InstanceType type, int instance_size, int inobject_properties,
Handle<HeapObject> prototype, Builtin call) {
return InstallFunction(isolate, target,
isolate->factory()->InternalizeUtf8String(name), type,
instance_size, inobject_properties, prototype, call);
}
// This sets a constructor instance type on the constructor map which will be
// used in IsXxxConstructor() predicates. Having such predicates helps figuring
// out if a protector cell should be invalidated. If there are no protector
// cell checks required for constructor, this function must not be used.
// Note, this function doesn't create a copy of the constructor's map. So it's
// better to set constructor instance type after all the properties are added
// to the constructor and thus the map is already guaranteed to be unique.
V8_NOINLINE void SetConstructorInstanceType(Isolate* isolate,
Handle<JSFunction> constructor,
InstanceType constructor_type) {
DCHECK(InstanceTypeChecker::IsJSFunction(constructor_type));
DCHECK_NE(constructor_type, JS_FUNCTION_TYPE);
Map map = constructor->map();
// Check we don't accidentally change one of the existing maps.
DCHECK_NE(map, *isolate->strict_function_map());
DCHECK_NE(map, *isolate->strict_function_with_readonly_prototype_map());
// Constructor function map is always a root map, and thus we don't have to
// deal with updating the whole transition tree.
DCHECK(map.GetBackPointer().IsUndefined(isolate));
DCHECK_EQ(JS_FUNCTION_TYPE, map.instance_type());
map.set_instance_type(constructor_type);
}
V8_NOINLINE Handle<JSFunction> SimpleCreateFunction(Isolate* isolate,
Handle<String> name,
Builtin call, int len,
bool adapt) {
DCHECK(Builtins::HasJSLinkage(call));
name = String::Flatten(isolate, name, AllocationType::kOld);
Handle<JSFunction> fun =
CreateFunctionForBuiltinWithoutPrototype(isolate, name, call);
// Make the resulting JSFunction object fast.
JSObject::MakePrototypesFast(fun, kStartAtReceiver, isolate);
fun->shared().set_native(true);
if (adapt) {
fun->shared().set_internal_formal_parameter_count(JSParameterCount(len));
} else {
fun->shared().DontAdaptArguments();
}
fun->shared().set_length(len);
return fun;
}
V8_NOINLINE Handle<JSFunction> InstallFunctionWithBuiltinId(
Isolate* isolate, Handle<JSObject> base, const char* name, Builtin call,
int len, bool adapt) {
Handle<String> internalized_name =
isolate->factory()->InternalizeUtf8String(name);
Handle<JSFunction> fun =
SimpleCreateFunction(isolate, internalized_name, call, len, adapt);
JSObject::AddProperty(isolate, base, internalized_name, fun, DONT_ENUM);
return fun;
}
V8_NOINLINE Handle<JSFunction> InstallFunctionAtSymbol(
Isolate* isolate, Handle<JSObject> base, Handle<Symbol> symbol,
const char* symbol_string, Builtin call, int len, bool adapt,
PropertyAttributes attrs = DONT_ENUM) {
Handle<String> internalized_symbol =
isolate->factory()->InternalizeUtf8String(symbol_string);
Handle<JSFunction> fun =
SimpleCreateFunction(isolate, internalized_symbol, call, len, adapt);
JSObject::AddProperty(isolate, base, symbol, fun, attrs);
return fun;
}
V8_NOINLINE Handle<JSFunction> CreateSharedObjectConstructor(
Isolate* isolate, Handle<String> name, Handle<Map> instance_map,
Builtin builtin) {
Factory* factory = isolate->factory();
Handle<SharedFunctionInfo> info = factory->NewSharedFunctionInfoForBuiltin(
name, builtin, FunctionKind::kNormalFunction);
info->set_language_mode(LanguageMode::kStrict);
Handle<JSFunction> constructor =
Factory::JSFunctionBuilder{isolate, info, isolate->native_context()}
.set_map(isolate->strict_function_with_readonly_prototype_map())
.Build();
constructor->set_prototype_or_initial_map(*instance_map, kReleaseStore);
// Create a new {constructor, non-instance_prototype} tuple and store it
// in Map::constructor field.
Handle<Tuple2> non_instance_prototype_constructor_tuple =
isolate->factory()->NewTuple2(isolate->function_function(),
factory->null_value(),
AllocationType::kOld);
constructor->map().set_has_non_instance_prototype(true);
constructor->map().SetConstructor(*non_instance_prototype_constructor_tuple);
JSObject::AddProperty(
isolate, constructor, factory->has_instance_symbol(),
handle(isolate->native_context()->shared_space_js_object_has_instance(),
isolate),
static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY));
return constructor;
}
V8_NOINLINE void SimpleInstallGetterSetter(Isolate* isolate,
Handle<JSObject> base,
Handle<String> name,
Builtin call_getter,
Builtin call_setter) {
Handle<String> getter_name =
Name::ToFunctionName(isolate, name, isolate->factory()->get_string())
.ToHandleChecked();
Handle<JSFunction> getter =
SimpleCreateFunction(isolate, getter_name, call_getter, 0, true);
Handle<String> setter_name =
Name::ToFunctionName(isolate, name, isolate->factory()->set_string())
.ToHandleChecked();
Handle<JSFunction> setter =
SimpleCreateFunction(isolate, setter_name, call_setter, 1, true);
JSObject::DefineOwnAccessorIgnoreAttributes(base, name, getter, setter,
DONT_ENUM)
.Check();
}
void SimpleInstallGetterSetter(Isolate* isolate, Handle<JSObject> base,
const char* name, Builtin call_getter,
Builtin call_setter) {
SimpleInstallGetterSetter(isolate, base,
isolate->factory()->InternalizeUtf8String(name),
call_getter, call_setter);
}
V8_NOINLINE Handle<JSFunction> SimpleInstallGetter(Isolate* isolate,
Handle<JSObject> base,
Handle<Name> name,
Handle<Name> property_name,
Builtin call, bool adapt) {
Handle<String> getter_name =
Name::ToFunctionName(isolate, name, isolate->factory()->get_string())
.ToHandleChecked();
Handle<JSFunction> getter =
SimpleCreateFunction(isolate, getter_name, call, 0, adapt);
Handle<Object> setter = isolate->factory()->undefined_value();
JSObject::DefineOwnAccessorIgnoreAttributes(base, property_name, getter,
setter, DONT_ENUM)
.Check();
return getter;
}
V8_NOINLINE Handle<JSFunction> SimpleInstallGetter(Isolate* isolate,
Handle<JSObject> base,
Handle<Name> name,
Builtin call, bool adapt) {
return SimpleInstallGetter(isolate, base, name, name, call, adapt);
}
V8_NOINLINE void InstallConstant(Isolate* isolate, Handle<JSObject> holder,
const char* name, Handle<Object> value) {
JSObject::AddProperty(
isolate, holder, isolate->factory()->InternalizeUtf8String(name), value,
static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY));
}
V8_NOINLINE void InstallTrueValuedProperty(Isolate* isolate,
Handle<JSObject> holder,
const char* name) {
JSObject::AddProperty(isolate, holder,
isolate->factory()->InternalizeUtf8String(name),
isolate->factory()->true_value(), NONE);
}
V8_NOINLINE void InstallSpeciesGetter(Isolate* isolate,
Handle<JSFunction> constructor) {
Factory* factory = isolate->factory();
// TODO(adamk): We should be able to share a SharedFunctionInfo
// between all these JSFunctins.
SimpleInstallGetter(isolate, constructor, factory->symbol_species_string(),
factory->species_symbol(), Builtin::kReturnReceiver,
true);
}
V8_NOINLINE void InstallToStringTag(Isolate* isolate, Handle<JSObject> holder,
Handle<String> value) {
JSObject::AddProperty(isolate, holder,
isolate->factory()->to_string_tag_symbol(), value,
static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY));
}
void InstallToStringTag(Isolate* isolate, Handle<JSObject> holder,
const char* value) {
InstallToStringTag(isolate, holder,
isolate->factory()->InternalizeUtf8String(value));
}
} // namespace
Handle<JSFunction> Genesis::CreateEmptyFunction() {
// Allocate the function map first and then patch the prototype later.
Handle<Map> empty_function_map = factory()->CreateSloppyFunctionMap(
FUNCTION_WITHOUT_PROTOTYPE, MaybeHandle<JSFunction>());
empty_function_map->set_is_prototype_map(true);
DCHECK(!empty_function_map->is_dictionary_map());
// Allocate the empty function as the prototype for function according to
// ES#sec-properties-of-the-function-prototype-object
Handle<JSFunction> empty_function =
CreateFunctionForBuiltin(isolate(), factory()->empty_string(),
empty_function_map, Builtin::kEmptyFunction);
empty_function_map->SetConstructor(*empty_function);
native_context()->set_empty_function(*empty_function);
// --- E m p t y ---
Handle<String> source = factory()->InternalizeString("() {}");
Handle<Script> script = factory()->NewScript(source);
script->set_type(Script::Type::kNative);
Handle<WeakFixedArray> infos = factory()->NewWeakFixedArray(2);
script->set_shared_function_infos(*infos);
ReadOnlyRoots roots{isolate()};
SharedFunctionInfo sfi = empty_function->shared();
sfi.set_raw_scope_info(roots.empty_function_scope_info());
sfi.DontAdaptArguments();
sfi.SetScript(roots, *script, 1);
sfi.UpdateFunctionMapIndex();
return empty_function;
}
void Genesis::CreateSloppyModeFunctionMaps(Handle<JSFunction> empty) {
Factory* factory = isolate_->factory();
Handle<Map> map;
//
// Allocate maps for sloppy functions without prototype.
//
map = factory->CreateSloppyFunctionMap(FUNCTION_WITHOUT_PROTOTYPE, empty);
native_context()->set_sloppy_function_without_prototype_map(*map);
//
// Allocate maps for sloppy functions with readonly prototype.
//
map =
factory->CreateSloppyFunctionMap(FUNCTION_WITH_READONLY_PROTOTYPE, empty);
native_context()->set_sloppy_function_with_readonly_prototype_map(*map);
//
// Allocate maps for sloppy functions with writable prototype.
//
map = factory->CreateSloppyFunctionMap(FUNCTION_WITH_WRITEABLE_PROTOTYPE,
empty);
native_context()->set_sloppy_function_map(*map);
map = factory->CreateSloppyFunctionMap(
FUNCTION_WITH_NAME_AND_WRITEABLE_PROTOTYPE, empty);
native_context()->set_sloppy_function_with_name_map(*map);
}
Handle<JSFunction> Genesis::GetThrowTypeErrorIntrinsic() {
if (!restricted_properties_thrower_.is_null()) {
return restricted_properties_thrower_;
}
Handle<String> name = factory()->empty_string();
Handle<JSFunction> function = CreateFunctionForBuiltinWithoutPrototype(
isolate(), name, Builtin::kStrictPoisonPillThrower);
function->shared().DontAdaptArguments();
// %ThrowTypeError% must have a name property with an empty string value. Per
// spec, ThrowTypeError's name is non-configurable, unlike ordinary functions'
// name property. To redefine it to be non-configurable, use
// SetOwnPropertyIgnoreAttributes.
JSObject::SetOwnPropertyIgnoreAttributes(
function, factory()->name_string(), factory()->empty_string(),
static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY))
.Assert();
// length needs to be non configurable.
Handle<Object> value(Smi::FromInt(function->length()), isolate());
JSObject::SetOwnPropertyIgnoreAttributes(
function, factory()->length_string(), value,
static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY))
.Assert();
if (JSObject::PreventExtensions(isolate_, function, kThrowOnError)
.IsNothing()) {
DCHECK(false);
}
JSObject::MigrateSlowToFast(function, 0, "Bootstrapping");
restricted_properties_thrower_ = function;
return function;
}
void Genesis::CreateStrictModeFunctionMaps(Handle<JSFunction> empty) {
Factory* factory = isolate_->factory();
Handle<Map> map;
//
// Allocate maps for strict functions without prototype.
//
map = factory->CreateStrictFunctionMap(FUNCTION_WITHOUT_PROTOTYPE, empty);
native_context()->set_strict_function_without_prototype_map(*map);
map = factory->CreateStrictFunctionMap(METHOD_WITH_NAME, empty);
native_context()->set_method_with_name_map(*map);
//
// Allocate maps for strict functions with writable prototype.
//
map = factory->CreateStrictFunctionMap(FUNCTION_WITH_WRITEABLE_PROTOTYPE,
empty);
native_context()->set_strict_function_map(*map);
map = factory->CreateStrictFunctionMap(
FUNCTION_WITH_NAME_AND_WRITEABLE_PROTOTYPE, empty);
native_context()->set_strict_function_with_name_map(*map);
//
// Allocate maps for strict functions with readonly prototype.
//
map =
factory->CreateStrictFunctionMap(FUNCTION_WITH_READONLY_PROTOTYPE, empty);
native_context()->set_strict_function_with_readonly_prototype_map(*map);
//
// Allocate map for class functions.
//
map = factory->CreateClassFunctionMap(empty);
native_context()->set_class_function_map(*map);
// Now that the strict mode function map is available, set up the
// restricted "arguments" and "caller" getters.
AddRestrictedFunctionProperties(empty);
}
void Genesis::CreateObjectFunction(Handle<JSFunction> empty_function) {
Factory* factory = isolate_->factory();
// --- O b j e c t ---
int inobject_properties = JSObject::kInitialGlobalObjectUnusedPropertiesCount;
int instance_size = JSObject::kHeaderSize + kTaggedSize * inobject_properties;
Handle<JSFunction> object_fun = CreateFunction(
isolate_, factory->Object_string(), JS_OBJECT_TYPE, instance_size,
inobject_properties, factory->null_value(), Builtin::kObjectConstructor);
object_fun->shared().set_length(1);
object_fun->shared().DontAdaptArguments();
native_context()->set_object_function(*object_fun);
{
// Finish setting up Object function's initial map.
Map initial_map = object_fun->initial_map();
initial_map.set_elements_kind(HOLEY_ELEMENTS);
}
// Allocate a new prototype for the object function.
Handle<JSObject> object_function_prototype =
factory->NewFunctionPrototype(object_fun);
{
Handle<Map> map = Map::Copy(
isolate(), handle(object_function_prototype->map(), isolate()),
"EmptyObjectPrototype");
map->set_is_prototype_map(true);
// Ban re-setting Object.prototype.__proto__ to prevent Proxy security bug
map->set_is_immutable_proto(true);
object_function_prototype->set_map(*map);
}
// Complete setting up empty function.
{
Handle<Map> empty_function_map(empty_function->map(), isolate_);
Map::SetPrototype(isolate(), empty_function_map, object_function_prototype);
}
native_context()->set_initial_object_prototype(*object_function_prototype);
JSFunction::SetPrototype(object_fun, object_function_prototype);
object_function_prototype->map().set_instance_type(JS_OBJECT_PROTOTYPE_TYPE);
{
// Set up slow map for Object.create(null) instances without in-object
// properties.
Handle<Map> map(object_fun->initial_map(), isolate_);
map = Map::CopyInitialMapNormalized(isolate(), map);
Map::SetPrototype(isolate(), map, factory->null_value());
native_context()->set_slow_object_with_null_prototype_map(*map);
// Set up slow map for literals with too many properties.
map = Map::Copy(isolate(), map, "slow_object_with_object_prototype_map");
Map::SetPrototype(isolate(), map, object_function_prototype);
native_context()->set_slow_object_with_object_prototype_map(*map);
}
}
namespace {
Handle<Map> CreateNonConstructorMap(Isolate* isolate, Handle<Map> source_map,
Handle<JSObject> prototype,
const char* reason) {
Handle<Map> map = Map::Copy(isolate, source_map, reason);
// Ensure the resulting map has prototype slot (it is necessary for storing
// inital map even when the prototype property is not required).
if (!map->has_prototype_slot()) {
// Re-set the unused property fields after changing the instance size.
int unused_property_fields = map->UnusedPropertyFields();
map->set_instance_size(map->instance_size() + kTaggedSize);
// The prototype slot shifts the in-object properties area by one slot.
map->SetInObjectPropertiesStartInWords(
map->GetInObjectPropertiesStartInWords() + 1);
map->set_has_prototype_slot(true);
map->SetInObjectUnusedPropertyFields(unused_property_fields);
}
map->set_is_constructor(false);
Map::SetPrototype(isolate, map, prototype);
return map;
}
} // namespace
Handle<JSFunction> SimpleInstallFunction(Isolate* isolate,
Handle<JSObject> base,
const char* name, Builtin call,
int len, bool adapt,
PropertyAttributes attrs) {
// Although function name does not have to be internalized the property name
// will be internalized during property addition anyway, so do it here now.
Handle<String> internalized_name =
isolate->factory()->InternalizeUtf8String(name);
Handle<JSFunction> fun =
SimpleCreateFunction(isolate, internalized_name, call, len, adapt);
JSObject::AddProperty(isolate, base, internalized_name, fun, attrs);
return fun;
}
void Genesis::CreateIteratorMaps(Handle<JSFunction> empty) {
// Create iterator-related meta-objects.
Handle<JSObject> iterator_prototype = factory()->NewJSObject(
isolate()->object_function(), AllocationType::kOld);
InstallFunctionAtSymbol(isolate(), iterator_prototype,
factory()->iterator_symbol(), "[Symbol.iterator]",
Builtin::kReturnReceiver, 0, true);
native_context()->set_initial_iterator_prototype(*iterator_prototype);
CHECK_NE(iterator_prototype->map().ptr(),
isolate_->initial_object_prototype()->map().ptr());
iterator_prototype->map().set_instance_type(JS_ITERATOR_PROTOTYPE_TYPE);
Handle<JSObject> generator_object_prototype = factory()->NewJSObject(
isolate()->object_function(), AllocationType::kOld);
native_context()->set_initial_generator_prototype(
*generator_object_prototype);
JSObject::ForceSetPrototype(isolate(), generator_object_prototype,
iterator_prototype);
Handle<JSObject> generator_function_prototype = factory()->NewJSObject(
isolate()->object_function(), AllocationType::kOld);
JSObject::ForceSetPrototype(isolate(), generator_function_prototype, empty);
InstallToStringTag(isolate(), generator_function_prototype,
"GeneratorFunction");
JSObject::AddProperty(isolate(), generator_function_prototype,
factory()->prototype_string(),
generator_object_prototype,
static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY));
JSObject::AddProperty(isolate(), generator_object_prototype,
factory()->constructor_string(),
generator_function_prototype,
static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY));
InstallToStringTag(isolate(), generator_object_prototype, "Generator");
SimpleInstallFunction(isolate(), generator_object_prototype, "next",
Builtin::kGeneratorPrototypeNext, 1, false);
SimpleInstallFunction(isolate(), generator_object_prototype, "return",
Builtin::kGeneratorPrototypeReturn, 1, false);
SimpleInstallFunction(isolate(), generator_object_prototype, "throw",
Builtin::kGeneratorPrototypeThrow, 1, false);
// Internal version of generator_prototype_next, flagged as non-native such
// that it doesn't show up in Error traces.
Handle<JSFunction> generator_next_internal =
SimpleCreateFunction(isolate(), factory()->next_string(),
Builtin::kGeneratorPrototypeNext, 1, false);
generator_next_internal->shared().set_native(false);
native_context()->set_generator_next_internal(*generator_next_internal);
// Internal version of async module functions, flagged as non-native such
// that they don't show up in Error traces.
{
Handle<JSFunction> async_module_evaluate_internal =
SimpleCreateFunction(isolate(), factory()->next_string(),
Builtin::kAsyncModuleEvaluate, 1, false);
async_module_evaluate_internal->shared().set_native(false);
native_context()->set_async_module_evaluate_internal(
*async_module_evaluate_internal);
}
// Create maps for generator functions and their prototypes. Store those
// maps in the native context. The "prototype" property descriptor is
// writable, non-enumerable, and non-configurable (as per ES6 draft
// 04-14-15, section 25.2.4.3).
// Generator functions do not have "caller" or "arguments" accessors.
Handle<Map> map;
map = CreateNonConstructorMap(isolate(), isolate()->strict_function_map(),
generator_function_prototype,
"GeneratorFunction");
native_context()->set_generator_function_map(*map);
map = CreateNonConstructorMap(
isolate(), isolate()->strict_function_with_name_map(),
generator_function_prototype, "GeneratorFunction with name");
native_context()->set_generator_function_with_name_map(*map);
Handle<JSFunction> object_function(native_context()->object_function(),
isolate());
Handle<Map> generator_object_prototype_map = Map::Create(isolate(), 0);
Map::SetPrototype(isolate(), generator_object_prototype_map,
generator_object_prototype);
native_context()->set_generator_object_prototype_map(
*generator_object_prototype_map);
}
void Genesis::CreateAsyncIteratorMaps(Handle<JSFunction> empty) {
// %AsyncIteratorPrototype%
// proposal-async-iteration/#sec-asynciteratorprototype
Handle<JSObject> async_iterator_prototype = factory()->NewJSObject(
isolate()->object_function(), AllocationType::kOld);
InstallFunctionAtSymbol(
isolate(), async_iterator_prototype, factory()->async_iterator_symbol(),
"[Symbol.asyncIterator]", Builtin::kReturnReceiver, 0, true);
native_context()->set_initial_async_iterator_prototype(
*async_iterator_prototype);
// %AsyncFromSyncIteratorPrototype%
// proposal-async-iteration/#sec-%asyncfromsynciteratorprototype%-object
Handle<JSObject> async_from_sync_iterator_prototype = factory()->NewJSObject(
isolate()->object_function(), AllocationType::kOld);
SimpleInstallFunction(isolate(), async_from_sync_iterator_prototype, "next",
Builtin::kAsyncFromSyncIteratorPrototypeNext, 1, false);
SimpleInstallFunction(isolate(), async_from_sync_iterator_prototype, "return",
Builtin::kAsyncFromSyncIteratorPrototypeReturn, 1,
false);
SimpleInstallFunction(isolate(), async_from_sync_iterator_prototype, "throw",
Builtin::kAsyncFromSyncIteratorPrototypeThrow, 1,
false);
InstallToStringTag(isolate(), async_from_sync_iterator_prototype,
"Async-from-Sync Iterator");
JSObject::ForceSetPrototype(isolate(), async_from_sync_iterator_prototype,
async_iterator_prototype);
Handle<Map> async_from_sync_iterator_map = factory()->NewMap(
JS_ASYNC_FROM_SYNC_ITERATOR_TYPE, JSAsyncFromSyncIterator::kHeaderSize);
Map::SetPrototype(isolate(), async_from_sync_iterator_map,
async_from_sync_iterator_prototype);
native_context()->set_async_from_sync_iterator_map(
*async_from_sync_iterator_map);
// Async Generators
Handle<JSObject> async_generator_object_prototype = factory()->NewJSObject(
isolate()->object_function(), AllocationType::kOld);
Handle<JSObject> async_generator_function_prototype = factory()->NewJSObject(
isolate()->object_function(), AllocationType::kOld);
// %AsyncGenerator% / %AsyncGeneratorFunction%.prototype
JSObject::ForceSetPrototype(isolate(), async_generator_function_prototype,
empty);
// The value of AsyncGeneratorFunction.prototype.prototype is the
// %AsyncGeneratorPrototype% intrinsic object.
// This property has the attributes
// { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.
JSObject::AddProperty(isolate(), async_generator_function_prototype,
factory()->prototype_string(),
async_generator_object_prototype,
static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY));
JSObject::AddProperty(isolate(), async_generator_object_prototype,
factory()->constructor_string(),
async_generator_function_prototype,
static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY));
InstallToStringTag(isolate(), async_generator_function_prototype,
"AsyncGeneratorFunction");
// %AsyncGeneratorPrototype%
JSObject::ForceSetPrototype(isolate(), async_generator_object_prototype,
async_iterator_prototype);
native_context()->set_initial_async_generator_prototype(
*async_generator_object_prototype);
InstallToStringTag(isolate(), async_generator_object_prototype,
"AsyncGenerator");
SimpleInstallFunction(isolate(), async_generator_object_prototype, "next",
Builtin::kAsyncGeneratorPrototypeNext, 1, false);
SimpleInstallFunction(isolate(), async_generator_object_prototype, "return",
Builtin::kAsyncGeneratorPrototypeReturn, 1, false);
SimpleInstallFunction(isolate(), async_generator_object_prototype, "throw",
Builtin::kAsyncGeneratorPrototypeThrow, 1, false);
// Create maps for generator functions and their prototypes. Store those
// maps in the native context. The "prototype" property descriptor is
// writable, non-enumerable, and non-configurable (as per ES6 draft
// 04-14-15, section 25.2.4.3).
// Async Generator functions do not have "caller" or "arguments" accessors.
Handle<Map> map;
map = CreateNonConstructorMap(isolate(), isolate()->strict_function_map(),
async_generator_function_prototype,
"AsyncGeneratorFunction");
native_context()->set_async_generator_function_map(*map);
map = CreateNonConstructorMap(
isolate(), isolate()->strict_function_with_name_map(),
async_generator_function_prototype, "AsyncGeneratorFunction with name");
native_context()->set_async_generator_function_with_name_map(*map);
Handle<JSFunction> object_function(native_context()->object_function(),
isolate());
Handle<Map> async_generator_object_prototype_map = Map::Create(isolate(), 0);
Map::SetPrototype(isolate(), async_generator_object_prototype_map,
async_generator_object_prototype);
native_context()->set_async_generator_object_prototype_map(
*async_generator_object_prototype_map);
}
void Genesis::CreateAsyncFunctionMaps(Handle<JSFunction> empty) {
// %AsyncFunctionPrototype% intrinsic
Handle<JSObject> async_function_prototype = factory()->NewJSObject(
isolate()->object_function(), AllocationType::kOld);
JSObject::ForceSetPrototype(isolate(), async_function_prototype, empty);
InstallToStringTag(isolate(), async_function_prototype, "AsyncFunction");
Handle<Map> map =
Map::Copy(isolate(), isolate()->strict_function_without_prototype_map(),
"AsyncFunction");
Map::SetPrototype(isolate(), map, async_function_prototype);
native_context()->set_async_function_map(*map);
map = Map::Copy(isolate(), isolate()->method_with_name_map(),
"AsyncFunction with name");
Map::SetPrototype(isolate(), map, async_function_prototype);
native_context()->set_async_function_with_name_map(*map);
}
void Genesis::CreateJSProxyMaps() {
// Allocate maps for all Proxy types.
// Next to the default proxy, we need maps indicating callable and
// constructable proxies.
Handle<Map> proxy_map = factory()->NewMap(JS_PROXY_TYPE, JSProxy::kSize,
TERMINAL_FAST_ELEMENTS_KIND);
proxy_map->set_is_dictionary_map(true);
proxy_map->set_may_have_interesting_properties(true);
native_context()->set_proxy_map(*proxy_map);
proxy_map->SetConstructor(native_context()->object_function());
Handle<Map> proxy_callable_map =
Map::Copy(isolate_, proxy_map, "callable Proxy");
proxy_callable_map->set_is_callable(true);
native_context()->set_proxy_callable_map(*proxy_callable_map);
proxy_callable_map->SetConstructor(native_context()->function_function());
Handle<Map> proxy_constructor_map =
Map::Copy(isolate_, proxy_callable_map, "constructor Proxy");
proxy_constructor_map->set_is_constructor(true);
native_context()->set_proxy_constructor_map(*proxy_constructor_map);
{
Handle<Map> map =
factory()->NewMap(JS_OBJECT_TYPE, JSProxyRevocableResult::kSize,
TERMINAL_FAST_ELEMENTS_KIND, 2);
Map::EnsureDescriptorSlack(isolate_, map, 2);
{ // proxy
Descriptor d = Descriptor::DataField(isolate(), factory()->proxy_string(),
JSProxyRevocableResult::kProxyIndex,
NONE, Representation::Tagged());
map->AppendDescriptor(isolate(), &d);
}
{ // revoke
Descriptor d = Descriptor::DataField(
isolate(), factory()->revoke_string(),
JSProxyRevocableResult::kRevokeIndex, NONE, Representation::Tagged());
map->AppendDescriptor(isolate(), &d);
}
Map::SetPrototype(isolate(), map, isolate()->initial_object_prototype());
map->SetConstructor(native_context()->object_function());
native_context()->set_proxy_revocable_result_map(*map);
}
}
namespace {
void ReplaceAccessors(Isolate* isolate, Handle<Map> map, Handle<String> name,
PropertyAttributes attributes,
Handle<AccessorPair> accessor_pair) {
DescriptorArray descriptors = map->instance_descriptors(isolate);
InternalIndex entry = descriptors.SearchWithCache(isolate, *name, *map);
Descriptor d = Descriptor::AccessorConstant(name, accessor_pair, attributes);
descriptors.Replace(entry, &d);
}
void InitializeJSArrayMaps(Isolate* isolate, Handle<Context> native_context,
Handle<Map> initial_map) {
// Replace all of the cached initial array maps in the native context with
// the appropriate transitioned elements kind maps.
Handle<Map> current_map = initial_map;
ElementsKind kind = current_map->elements_kind();
DCHECK_EQ(GetInitialFastElementsKind(), kind);
DCHECK_EQ(PACKED_SMI_ELEMENTS, kind);
DCHECK_EQ(Context::ArrayMapIndex(kind),
Context::JS_ARRAY_PACKED_SMI_ELEMENTS_MAP_INDEX);
native_context->set(Context::ArrayMapIndex(kind), *current_map,
UPDATE_WRITE_BARRIER, kReleaseStore);
for (int i = GetSequenceIndexFromFastElementsKind(kind) + 1;
i < kFastElementsKindCount; ++i) {
Handle<Map> new_map;
ElementsKind next_kind = GetFastElementsKindFromSequenceIndex(i);
Map maybe_elements_transition = current_map->ElementsTransitionMap(
isolate, ConcurrencyMode::kSynchronous);
if (!maybe_elements_transition.is_null()) {
new_map = handle(maybe_elements_transition, isolate);
} else {
new_map = Map::CopyAsElementsKind(isolate, current_map, next_kind,
INSERT_TRANSITION);
}
DCHECK_EQ(next_kind, new_map->elements_kind());
native_context->set(Context::ArrayMapIndex(next_kind), *new_map,
UPDATE_WRITE_BARRIER, kReleaseStore);
current_map = new_map;
}
}
} // namespace
void Genesis::AddRestrictedFunctionProperties(Handle<JSFunction> empty) {
PropertyAttributes rw_attribs = static_cast<PropertyAttributes>(DONT_ENUM);
Handle<JSFunction> thrower = GetThrowTypeErrorIntrinsic();
Handle<AccessorPair> accessors = factory()->NewAccessorPair();
accessors->set_getter(*thrower);
accessors->set_setter(*thrower);
Handle<Map> map(empty->map(), isolate());
ReplaceAccessors(isolate(), map, factory()->arguments_string(), rw_attribs,
accessors);
ReplaceAccessors(isolate(), map, factory()->caller_string(), rw_attribs,
accessors);
}
static void AddToWeakNativeContextList(Isolate* isolate, Context context) {
DCHECK(context.IsNativeContext());
Heap* heap = isolate->heap();
#ifdef DEBUG
{
DCHECK(context.next_context_link().IsUndefined(isolate));
// Check that context is not in the list yet.
for (Object current = heap->native_contexts_list();
!current.IsUndefined(isolate);
current = Context::cast(current).next_context_link()) {
DCHECK(current != context);
}
}
#endif
context.set(Context::NEXT_CONTEXT_LINK, heap->native_contexts_list(),
UPDATE_WRITE_BARRIER);
heap->set_native_contexts_list(context);
}
void Genesis::CreateRoots() {
// Allocate the native context FixedArray first and then patch the
// closure and extension object later (we need the empty function
// and the global object, but in order to create those, we need the
// native context).
native_context_ = factory()->NewNativeContext();
AddToWeakNativeContextList(isolate(), *native_context());
isolate()->set_context(*native_context());
// Allocate the message listeners object.
{
Handle<TemplateList> list = TemplateList::New(isolate(), 1);
native_context()->set_message_listeners(*list);
}
}
void Genesis::InstallGlobalThisBinding() {
Handle<ScriptContextTable> script_contexts(
native_context()->script_context_table(), isolate());
Handle<ScopeInfo> scope_info =
ReadOnlyRoots(isolate()).global_this_binding_scope_info_handle();
Handle<Context> context =
factory()->NewScriptContext(native_context(), scope_info);
// Go ahead and hook it up while we're at it.
int slot = scope_info->ReceiverContextSlotIndex();
DCHECK_EQ(slot, Context::MIN_CONTEXT_SLOTS);
context->set(slot, native_context()->global_proxy());
Handle<ScriptContextTable> new_script_contexts =
ScriptContextTable::Extend(isolate(), script_contexts, context);
native_context()->set_script_context_table(*new_script_contexts);
}
Handle<JSGlobalObject> Genesis::CreateNewGlobals(
v8::Local<v8::ObjectTemplate> global_proxy_template,
Handle<JSGlobalProxy> global_proxy) {
// The argument global_proxy_template aka data is an ObjectTemplateInfo.
// It has a constructor pointer that points at global_constructor which is a
// FunctionTemplateInfo.
// The global_proxy_constructor is used to (re)initialize the
// global_proxy. The global_proxy_constructor also has a prototype_template
// pointer that points at js_global_object_template which is an
// ObjectTemplateInfo.
// That in turn has a constructor pointer that points at
// js_global_object_constructor which is a FunctionTemplateInfo.
// js_global_object_constructor is used to make js_global_object_function
// js_global_object_function is used to make the new global_object.
//
// --- G l o b a l ---
// Step 1: Create a fresh JSGlobalObject.
Handle<JSFunction> js_global_object_function;
Handle<ObjectTemplateInfo> js_global_object_template;
if (!global_proxy_template.IsEmpty()) {
// Get prototype template of the global_proxy_template.
Handle<ObjectTemplateInfo> data =
v8::Utils::OpenHandle(*global_proxy_template);
Handle<FunctionTemplateInfo> global_constructor =
Handle<FunctionTemplateInfo>(
FunctionTemplateInfo::cast(data->constructor()), isolate());
Handle<Object> proto_template(global_constructor->GetPrototypeTemplate(),
isolate());
if (!proto_template->IsUndefined(isolate())) {
js_global_object_template =
Handle<ObjectTemplateInfo>::cast(proto_template);
}
}
if (js_global_object_template.is_null()) {
Handle<String> name = factory()->empty_string();
Handle<JSObject> prototype =
factory()->NewFunctionPrototype(isolate()->object_function());
js_global_object_function = CreateFunctionForBuiltinWithPrototype(
isolate(), name, Builtin::kIllegal, prototype, JS_GLOBAL_OBJECT_TYPE,
JSGlobalObject::kHeaderSize, 0, MUTABLE);
#ifdef DEBUG
LookupIterator it(isolate(), prototype, factory()->constructor_string(),
LookupIterator::OWN_SKIP_INTERCEPTOR);
Handle<Object> value = Object::GetProperty(&it).ToHandleChecked();
DCHECK(it.IsFound());
DCHECK_EQ(*isolate()->object_function(), *value);
#endif
} else {
Handle<FunctionTemplateInfo> js_global_object_constructor(
FunctionTemplateInfo::cast(js_global_object_template->constructor()),
isolate());
js_global_object_function = ApiNatives::CreateApiFunction(
isolate(), isolate()->native_context(), js_global_object_constructor,
factory()->the_hole_value(), JS_GLOBAL_OBJECT_TYPE);
}
js_global_object_function->initial_map().set_is_prototype_map(true);
js_global_object_function->initial_map().set_is_dictionary_map(true);
js_global_object_function->initial_map().set_may_have_interesting_properties(
true);
Handle<JSGlobalObject> global_object =
factory()->NewJSGlobalObject(js_global_object_function);
// Step 2: (re)initialize the global proxy object.
Handle<JSFunction> global_proxy_function;
if (global_proxy_template.IsEmpty()) {
Handle<String> name = factory()->empty_string();
global_proxy_function = CreateFunctionForBuiltinWithPrototype(
isolate(), name, Builtin::kIllegal, factory()->the_hole_value(),
JS_GLOBAL_PROXY_TYPE, JSGlobalProxy::SizeWithEmbedderFields(0), 0,
MUTABLE);
} else {
Handle<ObjectTemplateInfo> data =
v8::Utils::OpenHandle(*global_proxy_template);
Handle<FunctionTemplateInfo> global_constructor(
FunctionTemplateInfo::cast(data->constructor()), isolate());
global_proxy_function = ApiNatives::CreateApiFunction(
isolate(), isolate()->native_context(), global_constructor,
factory()->the_hole_value(), JS_GLOBAL_PROXY_TYPE);
}
global_proxy_function->initial_map().set_is_access_check_needed(true);
global_proxy_function->initial_map().set_may_have_interesting_properties(
true);
native_context()->set_global_proxy_function(*global_proxy_function);
// Set the global object as the (hidden) __proto__ of the global proxy after
// ConfigureGlobalObject
factory()->ReinitializeJSGlobalProxy(global_proxy, global_proxy_function);
// Set the native context for the global object.
global_object->set_native_context(*native_context());
global_object->set_global_proxy(*global_proxy);
// Set the native context of the global proxy.
global_proxy->set_native_context(*native_context());
// Set the global proxy of the native context. If the native context has been
// deserialized, the global proxy is already correctly set up by the
// deserializer. Otherwise it's undefined.
DCHECK(native_context()
->get(Context::GLOBAL_PROXY_INDEX)
.IsUndefined(isolate()) ||
native_context()->global_proxy_object() == *global_proxy);
native_context()->set_global_proxy_object(*global_proxy);
return global_object;
}
void Genesis::HookUpGlobalProxy(Handle<JSGlobalProxy> global_proxy) {
// Re-initialize the global proxy with the global proxy function from the
// snapshot, and then set up the link to the native context.
Handle<JSFunction> global_proxy_function(
native_context()->global_proxy_function(), isolate());
factory()->ReinitializeJSGlobalProxy(global_proxy, global_proxy_function);
Handle<JSObject> global_object(
JSObject::cast(native_context()->global_object()), isolate());
JSObject::ForceSetPrototype(isolate(), global_proxy, global_object);
global_proxy->set_native_context(*native_context());
DCHECK(native_context()->global_proxy() == *global_proxy);
}
void Genesis::HookUpGlobalObject(Handle<JSGlobalObject> global_object) {
Handle<JSGlobalObject> global_object_from_snapshot(
JSGlobalObject::cast(native_context()->extension()), isolate());
native_context()->set_extension(*global_object);
native_context()->set_security_token(*global_object);
TransferNamedProperties(global_object_from_snapshot, global_object);
if (global_object_from_snapshot->HasDictionaryElements()) {
JSObject::NormalizeElements(global_object);
}
DCHECK_EQ(global_object_from_snapshot->GetElementsKind(),
global_object->GetElementsKind());
TransferIndexedProperties(global_object_from_snapshot, global_object);
}
// See https://tc39.es/ecma262/#sec-ordinarycreatefromconstructor for details
// about intrinsicDefaultProto concept. In short it's about using proper
// prototype object from constructor's realm when the constructor has
// non-instance prototype.
static void InstallWithIntrinsicDefaultProto(Isolate* isolate,
Handle<JSFunction> function,
int context_index) {
Handle<Smi> index(Smi::FromInt(context_index), isolate);
JSObject::AddProperty(isolate, function,
isolate->factory()->native_context_index_symbol(),
index, NONE);
isolate->native_context()->set(context_index, *function, UPDATE_WRITE_BARRIER,
kReleaseStore);
}
static void InstallError(Isolate* isolate, Handle<JSObject> global,
Handle<String> name, int context_index,
Builtin error_constructor = Builtin::kErrorConstructor,
int error_function_length = 1) {
Factory* factory = isolate->factory();
// Most Error objects consist of a message, a stack trace, and possibly a
// cause. Reserve three in-object properties for these.
const int in_object_properties = 3;
const int kErrorObjectSize =
JSObject::kHeaderSize + in_object_properties * kTaggedSize;
Handle<JSFunction> error_fun = InstallFunction(
isolate, global, name, JS_ERROR_TYPE, kErrorObjectSize,
in_object_properties, factory->the_hole_value(), error_constructor);
error_fun->shared().DontAdaptArguments();
error_fun->shared().set_length(error_function_length);
if (context_index == Context::ERROR_FUNCTION_INDEX) {
SimpleInstallFunction(isolate, error_fun, "captureStackTrace",
Builtin::kErrorCaptureStackTrace, 2, false);
}
InstallWithIntrinsicDefaultProto(isolate, error_fun, context_index);
{
// Setup %XXXErrorPrototype%.
Handle<JSObject> prototype(JSObject::cast(error_fun->instance_prototype()),
isolate);
JSObject::AddProperty(isolate, prototype, factory->name_string(), name,
DONT_ENUM);
JSObject::AddProperty(isolate, prototype, factory->message_string(),
factory->empty_string(), DONT_ENUM);
if (context_index == Context::ERROR_FUNCTION_INDEX) {
Handle<JSFunction> to_string_fun =
SimpleInstallFunction(isolate, prototype, "toString",
Builtin::kErrorPrototypeToString, 0, true);
isolate->native_context()->set_error_to_string(*to_string_fun);
isolate->native_context()->set_initial_error_prototype(*prototype);
} else {
Handle<JSFunction> global_error = isolate->error_function();
CHECK(JSReceiver::SetPrototype(isolate, error_fun, global_error, false,
kThrowOnError)
.FromMaybe(false));
CHECK(JSReceiver::SetPrototype(isolate, prototype,
handle(global_error->prototype(), isolate),
false, kThrowOnError)
.FromMaybe(false));
}
}
Handle<Map> initial_map(error_fun->initial_map(), isolate);
Map::EnsureDescriptorSlack(isolate, initial_map, 2);
const int kJSErrorErrorStackSymbolIndex = 0;
{ // error_stack_symbol
Descriptor d = Descriptor::DataField(isolate, factory->error_stack_symbol(),
kJSErrorErrorStackSymbolIndex,
DONT_ENUM, Representation::Tagged());
initial_map->AppendDescriptor(isolate, &d);
}
{ // stack
Handle<AccessorPair> new_pair = factory->NewAccessorPair();
new_pair->set_getter(*factory->error_stack_getter_fun_template());
new_pair->set_setter(*factory->error_stack_setter_fun_template());
Descriptor d = Descriptor::AccessorConstant(factory->stack_string(),
new_pair, DONT_ENUM);
initial_map->AppendDescriptor(isolate, &d);
}
}
// This is only called if we are not using snapshots. The equivalent
// work in the snapshot case is done in HookUpGlobalObject.
void Genesis::InitializeGlobal(Handle<JSGlobalObject> global_object,
Handle<JSFunction> empty_function) {
// --- N a t i v e C o n t e x t ---
// Set extension and global object.
native_context()->set_extension(*global_object);
// Security setup: Set the security token of the native context to the global
// object. This makes the security check between two different contexts fail
// by default even in case of global object reinitialization.
native_context()->set_security_token(*global_object);
Factory* factory = isolate_->factory();
{ // -- C o n t e x t
Handle<Map> map =
factory->NewMap(FUNCTION_CONTEXT_TYPE, kVariableSizeSentinel);
map->set_native_context(*native_context());
native_context()->set_function_context_map(*map);
map = factory->NewMap(CATCH_CONTEXT_TYPE, kVariableSizeSentinel);
map->set_native_context(*native_context());
native_context()->set_catch_context_map(*map);
map = factory->NewMap(WITH_CONTEXT_TYPE, kVariableSizeSentinel);
map->set_native_context(*native_context());
native_context()->set_with_context_map(*map);
map = factory->NewMap(DEBUG_EVALUATE_CONTEXT_TYPE, kVariableSizeSentinel);
map->set_native_context(*native_context());
native_context()->set_debug_evaluate_context_map(*map);
map = factory->NewMap(BLOCK_CONTEXT_TYPE, kVariableSizeSentinel);
map->set_native_context(*native_context());
native_context()->set_block_context_map(*map);
map = factory->NewMap(MODULE_CONTEXT_TYPE, kVariableSizeSentinel);
map->set_native_context(*native_context());
native_context()->set_module_context_map(*map);
map = factory->NewMap(AWAIT_CONTEXT_TYPE, kVariableSizeSentinel);
map->set_native_context(*native_context());
native_context()->set_await_context_map(*map);
map = factory->NewMap(SCRIPT_CONTEXT_TYPE, kVariableSizeSentinel);
map->set_native_context(*native_context());
native_context()->set_script_context_map(*map);
map = factory->NewMap(EVAL_CONTEXT_TYPE, kVariableSizeSentinel);
map->set_native_context(*native_context());
native_context()->set_eval_context_map(*map);
Handle<ScriptContextTable> script_context_table =
factory->NewScriptContextTable();
native_context()->set_script_context_table(*script_context_table);
InstallGlobalThisBinding();
}
{ // --- O b j e c t ---
Handle<String> object_name = factory->Object_string();
Handle<JSFunction> object_function = isolate_->object_function();
JSObject::AddProperty(isolate_, global_object, object_name, object_function,
DONT_ENUM);
SimpleInstallFunction(isolate_, object_function, "assign",
Builtin::kObjectAssign, 2, false);
SimpleInstallFunction(isolate_, object_function, "getOwnPropertyDescriptor",
Builtin::kObjectGetOwnPropertyDescriptor, 2, false);
SimpleInstallFunction(isolate_, object_function,
"getOwnPropertyDescriptors",
Builtin::kObjectGetOwnPropertyDescriptors, 1, false);
SimpleInstallFunction(isolate_, object_function, "getOwnPropertyNames",
Builtin::kObjectGetOwnPropertyNames, 1, true);
SimpleInstallFunction(isolate_, object_function, "getOwnPropertySymbols",
Builtin::kObjectGetOwnPropertySymbols, 1, false);
SimpleInstallFunction(isolate_, object_function, "hasOwn",
Builtin::kObjectHasOwn, 2, true);
SimpleInstallFunction(isolate_, object_function, "is", Builtin::kObjectIs,
2, true);
SimpleInstallFunction(isolate_, object_function, "preventExtensions",
Builtin::kObjectPreventExtensions, 1, true);
SimpleInstallFunction(isolate_, object_function, "seal",
Builtin::kObjectSeal, 1, false);
SimpleInstallFunction(isolate_, object_function, "create",
Builtin::kObjectCreate, 2, false);
SimpleInstallFunction(isolate_, object_function, "defineProperties",
Builtin::kObjectDefineProperties, 2, true);
SimpleInstallFunction(isolate_, object_function, "defineProperty",
Builtin::kObjectDefineProperty, 3, true);
SimpleInstallFunction(isolate_, object_function, "freeze",
Builtin::kObjectFreeze, 1, false);
SimpleInstallFunction(isolate_, object_function, "getPrototypeOf",
Builtin::kObjectGetPrototypeOf, 1, true);
SimpleInstallFunction(isolate_, object_function, "setPrototypeOf",
Builtin::kObjectSetPrototypeOf, 2, true);
SimpleInstallFunction(isolate_, object_function, "isExtensible",
Builtin::kObjectIsExtensible, 1, true);
SimpleInstallFunction(isolate_, object_function, "isFrozen",
Builtin::kObjectIsFrozen, 1, false);
SimpleInstallFunction(isolate_, object_function, "isSealed",
Builtin::kObjectIsSealed, 1, false);
SimpleInstallFunction(isolate_, object_function, "keys",
Builtin::kObjectKeys, 1, true);
SimpleInstallFunction(isolate_, object_function, "entries",
Builtin::kObjectEntries, 1, true);
SimpleInstallFunction(isolate_, object_function, "fromEntries",
Builtin::kObjectFromEntries, 1, false);
SimpleInstallFunction(isolate_, object_function, "values",
Builtin::kObjectValues, 1, true);
SimpleInstallFunction(isolate_, isolate_->initial_object_prototype(),
"__defineGetter__", Builtin::kObjectDefineGetter, 2,
true);
SimpleInstallFunction(isolate_, isolate_->initial_object_prototype(),
"__defineSetter__", Builtin::kObjectDefineSetter, 2,
true);
SimpleInstallFunction(isolate_, isolate_->initial_object_prototype(),
"hasOwnProperty",
Builtin::kObjectPrototypeHasOwnProperty, 1, true);
SimpleInstallFunction(isolate_, isolate_->initial_object_prototype(),
"__lookupGetter__", Builtin::kObjectLookupGetter, 1,
true);
SimpleInstallFunction(isolate_, isolate_->initial_object_prototype(),
"__lookupSetter__", Builtin::kObjectLookupSetter, 1,
true);
SimpleInstallFunction(isolate_, isolate_->initial_object_prototype(),
"isPrototypeOf",
Builtin::kObjectPrototypeIsPrototypeOf, 1, true);
SimpleInstallFunction(
isolate_, isolate_->initial_object_prototype(), "propertyIsEnumerable",
Builtin::kObjectPrototypePropertyIsEnumerable, 1, false);
Handle<JSFunction> object_to_string = SimpleInstallFunction(
isolate_, isolate_->initial_object_prototype(), "toString",
Builtin::kObjectPrototypeToString, 0, true);
native_context()->set_object_to_string(*object_to_string);
Handle<JSFunction> object_value_of = SimpleInstallFunction(
isolate_, isolate_->initial_object_prototype(), "valueOf",
Builtin::kObjectPrototypeValueOf, 0, true);
native_context()->set_object_value_of_function(*object_value_of);
SimpleInstallGetterSetter(
isolate_, isolate_->initial_object_prototype(), factory->proto_string(),
Builtin::kObjectPrototypeGetProto, Builtin::kObjectPrototypeSetProto);
SimpleInstallFunction(isolate_, isolate_->initial_object_prototype(),
"toLocaleString",
Builtin::kObjectPrototypeToLocaleString, 0, true);
}
Handle<JSObject> global(native_context()->global_object(), isolate());
{ // --- F u n c t i o n ---
Handle<JSFunction> prototype = empty_function;
Handle<JSFunction> function_fun =
InstallFunction(isolate_, global, "Function", JS_FUNCTION_TYPE,
JSFunction::kSizeWithPrototype, 0, prototype,
Builtin::kFunctionConstructor);
// Function instances are sloppy by default.
function_fun->set_prototype_or_initial_map(*isolate_->sloppy_function_map(),
kReleaseStore);
function_fun->shared().DontAdaptArguments();
function_fun->shared().set_length(1);
InstallWithIntrinsicDefaultProto(isolate_, function_fun,
Context::FUNCTION_FUNCTION_INDEX);
native_context()->set_function_prototype(*prototype);
// Setup the methods on the %FunctionPrototype%.
JSObject::AddProperty(isolate_, prototype, factory->constructor_string(),
function_fun, DONT_ENUM);
Handle<JSFunction> function_prototype_apply =
SimpleInstallFunction(isolate_, prototype, "apply",
Builtin::kFunctionPrototypeApply, 2, false);
native_context()->set_function_prototype_apply(*function_prototype_apply);
SimpleInstallFunction(isolate_, prototype, "bind",
Builtin::kFastFunctionPrototypeBind, 1, false);
SimpleInstallFunction(isolate_, prototype, "call",
Builtin::kFunctionPrototypeCall, 1, false);
Handle<JSFunction> function_to_string =
SimpleInstallFunction(isolate_, prototype, "toString",
Builtin::kFunctionPrototypeToString, 0, false);
native_context()->set_function_to_string(*function_to_string);
// Install the @@hasInstance function.
Handle<JSFunction> has_instance = InstallFunctionAtSymbol(
isolate_, prototype, factory->has_instance_symbol(),
"[Symbol.hasInstance]", Builtin::kFunctionPrototypeHasInstance, 1, true,
static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY));
native_context()->set_function_has_instance(*has_instance);
// Complete setting up function maps.
{
isolate_->sloppy_function_map()->SetConstructor(*function_fun);
isolate_->sloppy_function_with_name_map()->SetConstructor(*function_fun);
isolate_->sloppy_function_with_readonly_prototype_map()->SetConstructor(
*function_fun);
isolate_->sloppy_function_without_prototype_map()->SetConstructor(
*function_fun);
isolate_->strict_function_map()->SetConstructor(*function_fun);
isolate_->strict_function_with_name_map()->SetConstructor(*function_fun);
isolate_->strict_function_with_readonly_prototype_map()->SetConstructor(
*function_fun);
isolate_->strict_function_without_prototype_map()->SetConstructor(
*function_fun);
isolate_->class_function_map()->SetConstructor(*function_fun);
}
}
Handle<JSFunction> array_prototype_to_string_fun;
{ // --- A r r a y ---
Handle<JSFunction> array_function = InstallFunction(
isolate_, global, "Array", JS_ARRAY_TYPE, JSArray::kHeaderSize, 0,
isolate_->initial_object_prototype(), Builtin::kArrayConstructor);
array_function->shared().DontAdaptArguments();
// This seems a bit hackish, but we need to make sure Array.length
// is 1.
array_function->shared().set_length(1);
Handle<Map> initial_map(array_function->initial_map(), isolate());
// This assert protects an optimization in
// HGraphBuilder::JSArrayBuilder::EmitMapCode()
DCHECK(initial_map->elements_kind() == GetInitialFastElementsKind());
Map::EnsureDescriptorSlack(isolate_, initial_map, 1);
PropertyAttributes attribs =
static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE);
static_assert(JSArray::kLengthDescriptorIndex == 0);
{ // Add length.
Descriptor d = Descriptor::AccessorConstant(
factory->length_string(), factory->array_length_accessor(), attribs);
initial_map->AppendDescriptor(isolate(), &d);
}
InstallWithIntrinsicDefaultProto(isolate_, array_function,
Context::ARRAY_FUNCTION_INDEX);
InstallSpeciesGetter(isolate_, array_function);
// Create the initial array map for Array.prototype which is required by
// the used ArrayConstructorStub.
// This is repeated after properly instantiating the Array.prototype.
InitializeJSArrayMaps(isolate_, native_context(), initial_map);
// Set up %ArrayPrototype%.
// The %ArrayPrototype% has TERMINAL_FAST_ELEMENTS_KIND in order to ensure
// that constant functions stay constant after turning prototype to setup
// mode and back.
Handle<JSArray> proto = factory->NewJSArray(0, TERMINAL_FAST_ELEMENTS_KIND,
AllocationType::kOld);
JSFunction::SetPrototype(array_function, proto);
native_context()->set_initial_array_prototype(*proto);
InitializeJSArrayMaps(isolate_, native_context(),
handle(array_function->initial_map(), isolate_));
SimpleInstallFunction(isolate_, array_function, "isArray",
Builtin::kArrayIsArray, 1, true);
SimpleInstallFunction(isolate_, array_function, "from", Builtin::kArrayFrom,
1, false);
SimpleInstallFunction(isolate_, array_function, "of", Builtin::kArrayOf, 0,
false);
SetConstructorInstanceType(isolate_, array_function,
JS_ARRAY_CONSTRUCTOR_TYPE);
JSObject::AddProperty(isolate_, proto, factory->constructor_string(),
array_function, DONT_ENUM);
SimpleInstallFunction(isolate_, proto, "at", Builtin::kArrayPrototypeAt, 1,
true);
SimpleInstallFunction(isolate_, proto, "concat",
Builtin::kArrayPrototypeConcat, 1, false);
SimpleInstallFunction(isolate_, proto, "copyWithin",
Builtin::kArrayPrototypeCopyWithin, 2, false);
SimpleInstallFunction(isolate_, proto, "fill", Builtin::kArrayPrototypeFill,
1, false);
SimpleInstallFunction(isolate_, proto, "find", Builtin::kArrayPrototypeFind,
1, false);
SimpleInstallFunction(isolate_, proto, "findIndex",
Builtin::kArrayPrototypeFindIndex, 1, false);
SimpleInstallFunction(isolate_, proto, "findLast",
Builtin::kArrayPrototypeFindLast, 1, false);
SimpleInstallFunction(isolate_, proto, "findLastIndex",
Builtin::kArrayPrototypeFindLastIndex, 1, false);
SimpleInstallFunction(isolate_, proto, "lastIndexOf",
Builtin::kArrayPrototypeLastIndexOf, 1, false);
SimpleInstallFunction(isolate_, proto, "pop", Builtin::kArrayPrototypePop,
0, false);
SimpleInstallFunction(isolate_, proto, "push", Builtin::kArrayPrototypePush,
1, false);
SimpleInstallFunction(isolate_, proto, "reverse",
Builtin::kArrayPrototypeReverse, 0, false);
SimpleInstallFunction(isolate_, proto, "shift",
Builtin::kArrayPrototypeShift, 0, false);
SimpleInstallFunction(isolate_, proto, "unshift",
Builtin::kArrayPrototypeUnshift, 1, false);
SimpleInstallFunction(isolate_, proto, "slice",
Builtin::kArrayPrototypeSlice, 2, false);
SimpleInstallFunction(isolate_, proto, "sort", Builtin::kArrayPrototypeSort,
1, false);
SimpleInstallFunction(isolate_, proto, "splice",
Builtin::kArrayPrototypeSplice, 2, false);
SimpleInstallFunction(isolate_, proto, "includes", Builtin::kArrayIncludes,
1, false);
SimpleInstallFunction(isolate_, proto, "indexOf", Builtin::kArrayIndexOf, 1,
false);
SimpleInstallFunction(isolate_, proto, "join", Builtin::kArrayPrototypeJoin,
1, false);
{ // Set up iterator-related properties.
Handle<JSFunction> keys = InstallFunctionWithBuiltinId(
isolate_, proto, "keys", Builtin::kArrayPrototypeKeys, 0, true);
native_context()->set_array_keys_iterator(*keys);
Handle<JSFunction> entries = InstallFunctionWithBuiltinId(
isolate_, proto, "entries", Builtin::kArrayPrototypeEntries, 0, true);
native_context()->set_array_entries_iterator(*entries);
Handle<JSFunction> values = InstallFunctionWithBuiltinId(
isolate_, proto, "values", Builtin::kArrayPrototypeValues, 0, true);
JSObject::AddProperty(isolate_, proto, factory->iterator_symbol(), values,
DONT_ENUM);
native_context()->set_array_values_iterator(*values);
}
Handle<JSFunction> for_each_fun = SimpleInstallFunction(
isolate_, proto, "forEach", Builtin::kArrayForEach, 1, false);
native_context()->set_array_for_each_iterator(*for_each_fun);
SimpleInstallFunction(isolate_, proto, "filter", Builtin::kArrayFilter, 1,
false);
SimpleInstallFunction(isolate_, proto, "flat", Builtin::kArrayPrototypeFlat,
0, false);
SimpleInstallFunction(isolate_, proto, "flatMap",
Builtin::kArrayPrototypeFlatMap, 1, false);
SimpleInstallFunction(isolate_, proto, "map", Builtin::kArrayMap, 1, false);
SimpleInstallFunction(isolate_, proto, "every", Builtin::kArrayEvery, 1,
false);
SimpleInstallFunction(isolate_, proto, "some", Builtin::kArraySome, 1,
false);
SimpleInstallFunction(isolate_, proto, "reduce", Builtin::kArrayReduce, 1,
false);
SimpleInstallFunction(isolate_, proto, "reduceRight",
Builtin::kArrayReduceRight, 1, false);
SimpleInstallFunction(isolate_, proto, "toLocaleString",
Builtin::kArrayPrototypeToLocaleString, 0, false);
array_prototype_to_string_fun =
SimpleInstallFunction(isolate_, proto, "toString",
Builtin::kArrayPrototypeToString, 0, false);
Handle<JSObject> unscopables = factory->NewJSObjectWithNullProto();
InstallTrueValuedProperty(isolate_, unscopables, "at");
InstallTrueValuedProperty(isolate_, unscopables, "copyWithin");
InstallTrueValuedProperty(isolate_, unscopables, "entries");
InstallTrueValuedProperty(isolate_, unscopables, "fill");
InstallTrueValuedProperty(isolate_, unscopables, "find");
InstallTrueValuedProperty(isolate_, unscopables, "findIndex");
InstallTrueValuedProperty(isolate_, unscopables, "findLast");
InstallTrueValuedProperty(isolate_, unscopables, "findLastIndex");
InstallTrueValuedProperty(isolate_, unscopables, "flat");
InstallTrueValuedProperty(isolate_, unscopables, "flatMap");
InstallTrueValuedProperty(isolate_, unscopables, "includes");
InstallTrueValuedProperty(isolate_, unscopables, "keys");
InstallTrueValuedProperty(isolate_, unscopables, "values");
JSObject::MigrateSlowToFast(unscopables, 0, "Bootstrapping");
JSObject::AddProperty(
isolate_, proto, factory->unscopables_symbol(), unscopables,
static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY));
Handle<Map> map(proto->map(), isolate_);
Map::SetShouldBeFastPrototypeMap(map, true, isolate_);
}
{ // --- A r r a y I t e r a t o r ---
Handle<JSObject> iterator_prototype(
native_context()->initial_iterator_prototype(), isolate());
Handle<JSObject> array_iterator_prototype =
factory->NewJSObject(isolate_->object_function(), AllocationType::kOld);
JSObject::ForceSetPrototype(isolate(), array_iterator_prototype,
iterator_prototype);
CHECK_NE(array_iterator_prototype->map().ptr(),
isolate_->initial_object_prototype()->map().ptr());
array_iterator_prototype->map().set_instance_type(
JS_ARRAY_ITERATOR_PROTOTYPE_TYPE);
InstallToStringTag(isolate_, array_iterator_prototype,
factory->ArrayIterator_string());
InstallFunctionWithBuiltinId(isolate_, array_iterator_prototype, "next",
Builtin::kArrayIteratorPrototypeNext, 0, true);
Handle<JSFunction> array_iterator_function =
CreateFunction(isolate_, factory->ArrayIterator_string(),
JS_ARRAY_ITERATOR_TYPE, JSArrayIterator::kHeaderSize, 0,
array_iterator_prototype, Builtin::kIllegal);
array_iterator_function->shared().set_native(false);
native_context()->set_initial_array_iterator_map(
array_iterator_function->initial_map());
native_context()->set_initial_array_iterator_prototype(
*array_iterator_prototype);
}
{ // --- N u m b e r ---
Handle<JSFunction> number_fun = InstallFunction(
isolate_, global, "Number", JS_PRIMITIVE_WRAPPER_TYPE,
JSPrimitiveWrapper::kHeaderSize, 0,
isolate_->initial_object_prototype(), Builtin::kNumberConstructor);
number_fun->shared().DontAdaptArguments();
number_fun->shared().set_length(1);
InstallWithIntrinsicDefaultProto(isolate_, number_fun,
Context::NUMBER_FUNCTION_INDEX);
// Create the %NumberPrototype%
Handle<JSPrimitiveWrapper> prototype = Handle<JSPrimitiveWrapper>::cast(
factory->NewJSObject(number_fun, AllocationType::kOld));
prototype->set_value(Smi::zero());
JSFunction::SetPrototype(number_fun, prototype);
// Install the "constructor" property on the {prototype}.
JSObject::AddProperty(isolate_, prototype, factory->constructor_string(),
number_fun, DONT_ENUM);
// Install the Number.prototype methods.
SimpleInstallFunction(isolate_, prototype, "toExponential",
Builtin::kNumberPrototypeToExponential, 1, false);
SimpleInstallFunction(isolate_, prototype, "toFixed",
Builtin::kNumberPrototypeToFixed, 1, false);
SimpleInstallFunction(isolate_, prototype, "toPrecision",
Builtin::kNumberPrototypeToPrecision, 1, false);
SimpleInstallFunction(isolate_, prototype, "toString",
Builtin::kNumberPrototypeToString, 1, false);
SimpleInstallFunction(isolate_, prototype, "valueOf",
Builtin::kNumberPrototypeValueOf, 0, true);
SimpleInstallFunction(isolate_, prototype, "toLocaleString",
Builtin::kNumberPrototypeToLocaleString, 0, false);
// Install the Number functions.
SimpleInstallFunction(isolate_, number_fun, "isFinite",
Builtin::kNumberIsFinite, 1, true);
SimpleInstallFunction(isolate_, number_fun, "isInteger",
Builtin::kNumberIsInteger, 1, true);
SimpleInstallFunction(isolate_, number_fun, "isNaN", Builtin::kNumberIsNaN,
1, true);
SimpleInstallFunction(isolate_, number_fun, "isSafeInteger",
Builtin::kNumberIsSafeInteger, 1, true);
// Install Number.parseFloat and Global.parseFloat.
Handle<JSFunction> parse_float_fun =
SimpleInstallFunction(isolate_, number_fun, "parseFloat",
Builtin::kNumberParseFloat, 1, true);
JSObject::AddProperty(isolate_, global_object, "parseFloat",
parse_float_fun, DONT_ENUM);
native_context()->set_global_parse_float_fun(*parse_float_fun);
// Install Number.parseInt and Global.parseInt.
Handle<JSFunction> parse_int_fun = SimpleInstallFunction(
isolate_, number_fun, "parseInt", Builtin::kNumberParseInt, 2, true);
JSObject::AddProperty(isolate_, global_object, "parseInt", parse_int_fun,
DONT_ENUM);
native_context()->set_global_parse_int_fun(*parse_int_fun);
// Install Number constants
const double kMaxValue = 1.7976931348623157e+308;
const double kMinValue = 5e-324;
const double kEPS = 2.220446049250313e-16;
InstallConstant(isolate_, number_fun, "MAX_VALUE",
factory->NewNumber(kMaxValue));
InstallConstant(isolate_, number_fun, "MIN_VALUE",
factory->NewNumber(kMinValue));
InstallConstant(isolate_, number_fun, "NaN", factory->nan_value());
InstallConstant(isolate_, number_fun, "NEGATIVE_INFINITY",
factory->NewNumber(-V8_INFINITY));
InstallConstant(isolate_, number_fun, "POSITIVE_INFINITY",
factory->infinity_value());
InstallConstant(isolate_, number_fun, "MAX_SAFE_INTEGER",
factory->NewNumber(kMaxSafeInteger));
InstallConstant(isolate_, number_fun, "MIN_SAFE_INTEGER",
factory->NewNumber(kMinSafeInteger));
InstallConstant(isolate_, number_fun, "EPSILON", factory->NewNumber(kEPS));
InstallConstant(isolate_, global, "Infinity", factory->infinity_value());
InstallConstant(isolate_, global, "NaN", factory->nan_value());
InstallConstant(isolate_, global, "undefined", factory->undefined_value());
}
{ // --- B o o l e a n ---
Handle<JSFunction> boolean_fun = InstallFunction(
isolate_, global, "Boolean", JS_PRIMITIVE_WRAPPER_TYPE,
JSPrimitiveWrapper::kHeaderSize, 0,
isolate_->initial_object_prototype(), Builtin::kBooleanConstructor);
boolean_fun->shared().DontAdaptArguments();
boolean_fun->shared().set_length(1);
InstallWithIntrinsicDefaultProto(isolate_, boolean_fun,
Context::BOOLEAN_FUNCTION_INDEX);
// Create the %BooleanPrototype%
Handle<JSPrimitiveWrapper> prototype = Handle<JSPrimitiveWrapper>::cast(
factory->NewJSObject(boolean_fun, AllocationType::kOld));
prototype->set_value(ReadOnlyRoots(isolate_).false_value());
JSFunction::SetPrototype(boolean_fun, prototype);
// Install the "constructor" property on the {prototype}.
JSObject::AddProperty(isolate_, prototype, factory->constructor_string(),
boolean_fun, DONT_ENUM);
// Install the Boolean.prototype methods.
SimpleInstallFunction(isolate_, prototype, "toString",
Builtin::kBooleanPrototypeToString, 0, true);
SimpleInstallFunction(isolate_, prototype, "valueOf",
Builtin::kBooleanPrototypeValueOf, 0, true);
}
{ // --- S t r i n g ---
Handle<JSFunction> string_fun = InstallFunction(
isolate_, global, "String", JS_PRIMITIVE_WRAPPER_TYPE,
JSPrimitiveWrapper::kHeaderSize, 0,
isolate_->initial_object_prototype(), Builtin::kStringConstructor);
string_fun->shared().DontAdaptArguments();
string_fun->shared().set_length(1);
InstallWithIntrinsicDefaultProto(isolate_, string_fun,
Context::STRING_FUNCTION_INDEX);
Handle<Map> string_map = Handle<Map>(
native_context()->string_function().initial_map(), isolate());
string_map->set_elements_kind(FAST_STRING_WRAPPER_ELEMENTS);
Map::EnsureDescriptorSlack(isolate_, string_map, 1);
PropertyAttributes attribs =
static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY);
{ // Add length.
Descriptor d = Descriptor::AccessorConstant(
factory->length_string(), factory->string_length_accessor(), attribs);
string_map->AppendDescriptor(isolate(), &d);
}
// Install the String.fromCharCode function.
SimpleInstallFunction(isolate_, string_fun, "fromCharCode",
Builtin::kStringFromCharCode, 1, false);
// Install the String.fromCodePoint function.
SimpleInstallFunction(isolate_, string_fun, "fromCodePoint",
Builtin::kStringFromCodePoint, 1, false);
// Install the String.raw function.
SimpleInstallFunction(isolate_, string_fun, "raw", Builtin::kStringRaw, 1,
false);
// Create the %StringPrototype%
Handle<JSPrimitiveWrapper> prototype = Handle<JSPrimitiveWrapper>::cast(
factory->NewJSObject(string_fun, AllocationType::kOld));
prototype->set_value(ReadOnlyRoots(isolate_).empty_string());
JSFunction::SetPrototype(string_fun, prototype);
native_context()->set_initial_string_prototype(*prototype);
// Install the "constructor" property on the {prototype}.
JSObject::AddProperty(isolate_, prototype, factory->constructor_string(),
string_fun, DONT_ENUM);
// Install the String.prototype methods.
SimpleInstallFunction(isolate_, prototype, "anchor",
Builtin::kStringPrototypeAnchor, 1, false);
SimpleInstallFunction(isolate_, prototype, "at",
Builtin::kStringPrototypeAt, 1, true);
SimpleInstallFunction(isolate_, prototype, "big",
Builtin::kStringPrototypeBig, 0, false);
SimpleInstallFunction(isolate_, prototype, "blink",
Builtin::kStringPrototypeBlink, 0, false);
SimpleInstallFunction(isolate_, prototype, "bold",
Builtin::kStringPrototypeBold, 0, false);
SimpleInstallFunction(isolate_, prototype, "charAt",
Builtin::kStringPrototypeCharAt, 1, true);
SimpleInstallFunction(isolate_, prototype, "charCodeAt",
Builtin::kStringPrototypeCharCodeAt, 1, true);
SimpleInstallFunction(isolate_, prototype, "codePointAt",
Builtin::kStringPrototypeCodePointAt, 1, true);
SimpleInstallFunction(isolate_, prototype, "concat",
Builtin::kStringPrototypeConcat, 1, false);
SimpleInstallFunction(isolate_, prototype, "endsWith",
Builtin::kStringPrototypeEndsWith, 1, false);
SimpleInstallFunction(isolate_, prototype, "fontcolor",
Builtin::kStringPrototypeFontcolor, 1, false);
SimpleInstallFunction(isolate_, prototype, "fontsize",
Builtin::kStringPrototypeFontsize, 1, false);
SimpleInstallFunction(isolate_, prototype, "fixed",
Builtin::kStringPrototypeFixed, 0, false);
SimpleInstallFunction(isolate_, prototype, "includes",
Builtin::kStringPrototypeIncludes, 1, false);
SimpleInstallFunction(isolate_, prototype, "indexOf",
Builtin::kStringPrototypeIndexOf, 1, false);
SimpleInstallFunction(isolate_, prototype, "italics",
Builtin::kStringPrototypeItalics, 0, false);
SimpleInstallFunction(isolate_, prototype, "lastIndexOf",
Builtin::kStringPrototypeLastIndexOf, 1, false);
SimpleInstallFunction(isolate_, prototype, "link",
Builtin::kStringPrototypeLink, 1, false);
#ifdef V8_INTL_SUPPORT
SimpleInstallFunction(isolate_, prototype, "localeCompare",
Builtin::kStringPrototypeLocaleCompare, 1, false);
#else
SimpleInstallFunction(isolate_, prototype, "localeCompare",
Builtin::kStringPrototypeLocaleCompare, 1, true);
#endif // V8_INTL_SUPPORT
SimpleInstallFunction(isolate_, prototype, "match",
Builtin::kStringPrototypeMatch, 1, true);
SimpleInstallFunction(isolate_, prototype, "matchAll",
Builtin::kStringPrototypeMatchAll, 1, true);
#ifdef V8_INTL_SUPPORT
SimpleInstallFunction(isolate_, prototype, "normalize",
Builtin::kStringPrototypeNormalizeIntl, 0, false);
#else
SimpleInstallFunction(isolate_, prototype, "normalize",
Builtin::kStringPrototypeNormalize, 0, false);
#endif // V8_INTL_SUPPORT
SimpleInstallFunction(isolate_, prototype, "padEnd",
Builtin::kStringPrototypePadEnd, 1, false);
SimpleInstallFunction(isolate_, prototype, "padStart",
Builtin::kStringPrototypePadStart, 1, false);
SimpleInstallFunction(isolate_, prototype, "repeat",
Builtin::kStringPrototypeRepeat, 1, true);
SimpleInstallFunction(isolate_, prototype, "replace",
Builtin::kStringPrototypeReplace, 2, true);
SimpleInstallFunction(isolate(), prototype, "replaceAll",
Builtin::kStringPrototypeReplaceAll, 2, true);
SimpleInstallFunction(isolate_, prototype, "search",
Builtin::kStringPrototypeSearch, 1, true);
SimpleInstallFunction(isolate_, prototype, "slice",
Builtin::kStringPrototypeSlice, 2, false);
SimpleInstallFunction(isolate_, prototype, "small",
Builtin::kStringPrototypeSmall, 0, false);
SimpleInstallFunction(isolate_, prototype, "split",
Builtin::kStringPrototypeSplit, 2, false);
SimpleInstallFunction(isolate_, prototype, "strike",
Builtin::kStringPrototypeStrike, 0, false);
SimpleInstallFunction(isolate_, prototype, "sub",
Builtin::kStringPrototypeSub, 0, false);
SimpleInstallFunction(isolate_, prototype, "substr",
Builtin::kStringPrototypeSubstr, 2, false);
SimpleInstallFunction(isolate_, prototype, "substring",
Builtin::kStringPrototypeSubstring, 2, false);
SimpleInstallFunction(isolate_, prototype, "sup",
Builtin::kStringPrototypeSup, 0, false);
SimpleInstallFunction(isolate_, prototype, "startsWith",
Builtin::kStringPrototypeStartsWith, 1, false);
SimpleInstallFunction(isolate_, prototype, "toString",
Builtin::kStringPrototypeToString, 0, true);
SimpleInstallFunction(isolate_, prototype, "trim",
Builtin::kStringPrototypeTrim, 0, false);
// Install `String.prototype.trimStart` with `trimLeft` alias.
Handle<JSFunction> trim_start_fun =
SimpleInstallFunction(isolate_, prototype, "trimStart",
Builtin::kStringPrototypeTrimStart, 0, false);
JSObject::AddProperty(isolate_, prototype, "trimLeft", trim_start_fun,
DONT_ENUM);
// Install `String.prototype.trimEnd` with `trimRight` alias.
Handle<JSFunction> trim_end_fun =
SimpleInstallFunction(isolate_, prototype, "trimEnd",
Builtin::kStringPrototypeTrimEnd, 0, false);
JSObject::AddProperty(isolate_, prototype, "trimRight", trim_end_fun,
DONT_ENUM);
SimpleInstallFunction(isolate_, prototype, "toLocaleLowerCase",
Builtin::kStringPrototypeToLocaleLowerCase, 0, false);
SimpleInstallFunction(isolate_, prototype, "toLocaleUpperCase",
Builtin::kStringPrototypeToLocaleUpperCase, 0, false);
#ifdef V8_INTL_SUPPORT
SimpleInstallFunction(isolate_, prototype, "toLowerCase",
Builtin::kStringPrototypeToLowerCaseIntl, 0, true);
SimpleInstallFunction(isolate_, prototype, "toUpperCase",
Builtin::kStringPrototypeToUpperCaseIntl, 0, false);
#else
SimpleInstallFunction(isolate_, prototype, "toLowerCase",
Builtin::kStringPrototypeToLowerCase, 0, false);
SimpleInstallFunction(isolate_, prototype, "toUpperCase",
Builtin::kStringPrototypeToUpperCase, 0, false);
#endif
SimpleInstallFunction(isolate_, prototype, "valueOf",
Builtin::kStringPrototypeValueOf, 0, true);
InstallFunctionAtSymbol(
isolate_, prototype, factory->iterator_symbol(), "[Symbol.iterator]",
Builtin::kStringPrototypeIterator, 0, true, DONT_ENUM);
}
{ // --- S t r i n g I t e r a t o r ---
Handle<JSObject> iterator_prototype(
native_context()->initial_iterator_prototype(), isolate());
Handle<JSObject> string_iterator_prototype =
factory->NewJSObject(isolate_->object_function(), AllocationType::kOld);
JSObject::ForceSetPrototype(isolate(), string_iterator_prototype,
iterator_prototype);
CHECK_NE(string_iterator_prototype->map().ptr(),
isolate_->initial_object_prototype()->map().ptr());
string_iterator_prototype->map().set_instance_type(
JS_STRING_ITERATOR_PROTOTYPE_TYPE);
InstallToStringTag(isolate_, string_iterator_prototype, "String Iterator");
InstallFunctionWithBuiltinId(isolate_, string_iterator_prototype, "next",
Builtin::kStringIteratorPrototypeNext, 0,
true);
Handle<JSFunction> string_iterator_function = CreateFunction(
isolate_, factory->InternalizeUtf8String("StringIterator"),
JS_STRING_ITERATOR_TYPE, JSStringIterator::kHeaderSize, 0,
string_iterator_prototype, Builtin::kIllegal);
string_iterator_function->shared().set_native(false);
native_context()->set_initial_string_iterator_map(
string_iterator_function->initial_map());
native_context()->set_initial_string_iterator_prototype(
*string_iterator_prototype);
}
{ // --- S y m b o l ---
Handle<JSFunction> symbol_fun =
InstallFunction(isolate_, global, "Symbol", JS_PRIMITIVE_WRAPPER_TYPE,
JSPrimitiveWrapper::kHeaderSize, 0,
factory->the_hole_value(), Builtin::kSymbolConstructor);
symbol_fun->shared().set_length(0);
symbol_fun->shared().DontAdaptArguments();
native_context()->set_symbol_function(*symbol_fun);
// Install the Symbol.for and Symbol.keyFor functions.
SimpleInstallFunction(isolate_, symbol_fun, "for", Builtin::kSymbolFor, 1,
false);
SimpleInstallFunction(isolate_, symbol_fun, "keyFor",
Builtin::kSymbolKeyFor, 1, false);
// Install well-known symbols.
InstallConstant(isolate_, symbol_fun, "asyncIterator",
factory->async_iterator_symbol());
InstallConstant(isolate_, symbol_fun, "hasInstance",
factory->has_instance_symbol());
InstallConstant(isolate_, symbol_fun, "isConcatSpreadable",
factory->is_concat_spreadable_symbol());
InstallConstant(isolate_, symbol_fun, "iterator",
factory->iterator_symbol());
InstallConstant(isolate_, symbol_fun, "match", factory->match_symbol());
InstallConstant(isolate_, symbol_fun, "matchAll",
factory->match_all_symbol());
InstallConstant(isolate_, symbol_fun, "replace", factory->replace_symbol());
InstallConstant(isolate_, symbol_fun, "search", factory->search_symbol());
InstallConstant(isolate_, symbol_fun, "species", factory->species_symbol());
InstallConstant(isolate_, symbol_fun, "split", factory->split_symbol());
InstallConstant(isolate_, symbol_fun, "toPrimitive",
factory->to_primitive_symbol());
InstallConstant(isolate_, symbol_fun, "toStringTag",
factory->to_string_tag_symbol());
InstallConstant(isolate_, symbol_fun, "unscopables",
factory->unscopables_symbol());
// Setup %SymbolPrototype%.
Handle<JSObject> prototype(JSObject::cast(symbol_fun->instance_prototype()),
isolate());
InstallToStringTag(isolate_, prototype, "Symbol");
// Install the Symbol.prototype methods.
InstallFunctionWithBuiltinId(isolate_, prototype, "toString",
Builtin::kSymbolPrototypeToString, 0, true);
InstallFunctionWithBuiltinId(isolate_, prototype, "valueOf",
Builtin::kSymbolPrototypeValueOf, 0, true);
// Install the Symbol.prototype.description getter.
SimpleInstallGetter(isolate_, prototype,
factory->InternalizeUtf8String("description"),
Builtin::kSymbolPrototypeDescriptionGetter, true);
// Install the @@toPrimitive function.
InstallFunctionAtSymbol(
isolate_, prototype, factory->to_primitive_symbol(),
"[Symbol.toPrimitive]", Builtin::kSymbolPrototypeToPrimitive, 1, true,
static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY));
}
{ // --- D a t e ---
Handle<JSFunction> date_fun = InstallFunction(
isolate_, global, "Date", JS_DATE_TYPE, JSDate::kHeaderSize, 0,
factory->the_hole_value(), Builtin::kDateConstructor);
InstallWithIntrinsicDefaultProto(isolate_, date_fun,
Context::DATE_FUNCTION_INDEX);
date_fun->shared().set_length(7);
date_fun->shared().DontAdaptArguments();
// Install the Date.now, Date.parse and Date.UTC functions.
SimpleInstallFunction(isolate_, date_fun, "now", Builtin::kDateNow, 0,
false);
SimpleInstallFunction(isolate_, date_fun, "parse", Builtin::kDateParse, 1,
false);
SimpleInstallFunction(isolate_, date_fun, "UTC", Builtin::kDateUTC, 7,
false);
// Setup %DatePrototype%.
Handle<JSObject> prototype(JSObject::cast(date_fun->instance_prototype()),
isolate());
// Install the Date.prototype methods.
SimpleInstallFunction(isolate_, prototype, "toString",
Builtin::kDatePrototypeToString, 0, false);
SimpleInstallFunction(isolate_, prototype, "toDateString",
Builtin::kDatePrototypeToDateString, 0, false);
SimpleInstallFunction(isolate_, prototype, "toTimeString",
Builtin::kDatePrototypeToTimeString, 0, false);
SimpleInstallFunction(isolate_, prototype, "toISOString",
Builtin::kDatePrototypeToISOString, 0, false);
Handle<JSFunction> to_utc_string =
SimpleInstallFunction(isolate_, prototype, "toUTCString",
Builtin::kDatePrototypeToUTCString, 0, false);
JSObject::AddProperty(isolate_, prototype, "toGMTString", to_utc_string,
DONT_ENUM);
SimpleInstallFunction(isolate_, prototype, "getDate",
Builtin::kDatePrototypeGetDate, 0, true);
SimpleInstallFunction(isolate_, prototype, "setDate",
Builtin::kDatePrototypeSetDate, 1, false);
SimpleInstallFunction(isolate_, prototype, "getDay",
Builtin::kDatePrototypeGetDay, 0, true);
SimpleInstallFunction(isolate_, prototype, "getFullYear",
Builtin::kDatePrototypeGetFullYear, 0, true);
SimpleInstallFunction(isolate_, prototype, "setFullYear",
Builtin::kDatePrototypeSetFullYear, 3, false);
SimpleInstallFunction(isolate_, prototype, "getHours",
Builtin::kDatePrototypeGetHours, 0, true);
SimpleInstallFunction(isolate_, prototype, "setHours",
Builtin::kDatePrototypeSetHours, 4, false);
SimpleInstallFunction(isolate_, prototype, "getMilliseconds",
Builtin::kDatePrototypeGetMilliseconds, 0, true);
SimpleInstallFunction(isolate_, prototype, "setMilliseconds",
Builtin::kDatePrototypeSetMilliseconds, 1, false);
SimpleInstallFunction(isolate_, prototype, "getMinutes",
Builtin::kDatePrototypeGetMinutes, 0, true);
SimpleInstallFunction(isolate_, prototype, "setMinutes",
Builtin::kDatePrototypeSetMinutes, 3, false);
SimpleInstallFunction(isolate_, prototype, "getMonth",
Builtin::kDatePrototypeGetMonth, 0, true);
SimpleInstallFunction(isolate_, prototype, "setMonth",
Builtin::kDatePrototypeSetMonth, 2, false);
SimpleInstallFunction(isolate_, prototype, "getSeconds",
Builtin::kDatePrototypeGetSeconds, 0, true);
SimpleInstallFunction(isolate_, prototype, "setSeconds",
Builtin::kDatePrototypeSetSeconds, 2, false);
SimpleInstallFunction(isolate_, prototype, "getTime",
Builtin::kDatePrototypeGetTime, 0, true);
SimpleInstallFunction(isolate_, prototype, "setTime",
Builtin::kDatePrototypeSetTime, 1, false);
SimpleInstallFunction(isolate_, prototype, "getTimezoneOffset",
Builtin::kDatePrototypeGetTimezoneOffset, 0, true);
SimpleInstallFunction(isolate_, prototype, "getUTCDate",
Builtin::kDatePrototypeGetUTCDate, 0, true);
SimpleInstallFunction(isolate_, prototype, "setUTCDate",
Builtin::kDatePrototypeSetUTCDate, 1, false);
SimpleInstallFunction(isolate_, prototype, "getUTCDay",
Builtin::kDatePrototypeGetUTCDay, 0, true);
SimpleInstallFunction(isolate_, prototype, "getUTCFullYear",
Builtin::kDatePrototypeGetUTCFullYear, 0, true);
SimpleInstallFunction(isolate_, prototype, "setUTCFullYear",
Builtin::kDatePrototypeSetUTCFullYear, 3, false);
SimpleInstallFunction(isolate_, prototype, "getUTCHours",
Builtin::kDatePrototypeGetUTCHours, 0, true);
SimpleInstallFunction(isolate_, prototype, "setUTCHours",
Builtin::kDatePrototypeSetUTCHours, 4, false);
SimpleInstallFunction(isolate_, prototype, "getUTCMilliseconds",
Builtin::kDatePrototypeGetUTCMilliseconds, 0, true);
SimpleInstallFunction(isolate_, prototype, "setUTCMilliseconds",
Builtin::kDatePrototypeSetUTCMilliseconds, 1, false);
SimpleInstallFunction(isolate_, prototype, "getUTCMinutes",
Builtin::kDatePrototypeGetUTCMinutes, 0, true);
SimpleInstallFunction(isolate_, prototype, "setUTCMinutes",
Builtin::kDatePrototypeSetUTCMinutes, 3, false);
SimpleInstallFunction(isolate_, prototype, "getUTCMonth",
Builtin::kDatePrototypeGetUTCMonth, 0, true);
SimpleInstallFunction(isolate_, prototype, "setUTCMonth",
Builtin::kDatePrototypeSetUTCMonth, 2, false);
SimpleInstallFunction(isolate_, prototype, "getUTCSeconds",
Builtin::kDatePrototypeGetUTCSeconds, 0, true);
SimpleInstallFunction(isolate_, prototype, "setUTCSeconds",
Builtin::kDatePrototypeSetUTCSeconds, 2, false);
SimpleInstallFunction(isolate_, prototype, "valueOf",
Builtin::kDatePrototypeValueOf, 0, true);
SimpleInstallFunction(isolate_, prototype, "getYear",
Builtin::kDatePrototypeGetYear, 0, true);
SimpleInstallFunction(isolate_, prototype, "setYear",
Builtin::kDatePrototypeSetYear, 1, false);
SimpleInstallFunction(isolate_, prototype, "toJSON",
Builtin::kDatePrototypeToJson, 1, false);
#ifdef V8_INTL_SUPPORT
SimpleInstallFunction(isolate_, prototype, "toLocaleString",
Builtin::kDatePrototypeToLocaleString, 0, false);
SimpleInstallFunction(isolate_, prototype, "toLocaleDateString",
Builtin::kDatePrototypeToLocaleDateString, 0, false);
SimpleInstallFunction(isolate_, prototype, "toLocaleTimeString",
Builtin::kDatePrototypeToLocaleTimeString, 0, false);
#else
// Install Intl fallback functions.
SimpleInstallFunction(isolate_, prototype, "toLocaleString",
Builtin::kDatePrototypeToString, 0, false);
SimpleInstallFunction(isolate_, prototype, "toLocaleDateString",
Builtin::kDatePrototypeToDateString, 0, false);
SimpleInstallFunction(isolate_, prototype, "toLocaleTimeString",
Builtin::kDatePrototypeToTimeString, 0, false);
#endif // V8_INTL_SUPPORT
// Install the @@toPrimitive function.
InstallFunctionAtSymbol(
isolate_, prototype, factory->to_primitive_symbol(),
"[Symbol.toPrimitive]", Builtin::kDatePrototypeToPrimitive, 1, true,
static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY));
}
{ // -- P r o m i s e
Handle<JSFunction> promise_fun = InstallFunction(
isolate_, global, "Promise", JS_PROMISE_TYPE,
JSPromise::kSizeWithEmbedderFields, 0, factory->the_hole_value(),
Builtin::kPromiseConstructor);
InstallWithIntrinsicDefaultProto(isolate_, promise_fun,
Context::PROMISE_FUNCTION_INDEX);
Handle<SharedFunctionInfo> shared(promise_fun->shared(), isolate_);
shared->set_internal_formal_parameter_count(JSParameterCount(1));
shared->set_length(1);
InstallSpeciesGetter(isolate_, promise_fun);
Handle<JSFunction> promise_all = InstallFunctionWithBuiltinId(
isolate_, promise_fun, "all", Builtin::kPromiseAll, 1, true);
native_context()->set_promise_all(*promise_all);
Handle<JSFunction> promise_all_settled =
InstallFunctionWithBuiltinId(isolate_, promise_fun, "allSettled",
Builtin::kPromiseAllSettled, 1, true);
native_context()->set_promise_all_settled(*promise_all_settled);
Handle<JSFunction> promise_any = InstallFunctionWithBuiltinId(
isolate_, promise_fun, "any", Builtin::kPromiseAny, 1, true);
native_context()->set_promise_any(*promise_any);
InstallFunctionWithBuiltinId(isolate_, promise_fun, "race",
Builtin::kPromiseRace, 1, true);
InstallFunctionWithBuiltinId(isolate_, promise_fun, "resolve",
Builtin::kPromiseResolveTrampoline, 1, true);
InstallFunctionWithBuiltinId(isolate_, promise_fun, "reject",
Builtin::kPromiseReject, 1, true);
SetConstructorInstanceType(isolate_, promise_fun,
JS_PROMISE_CONSTRUCTOR_TYPE);
// Setup %PromisePrototype%.
Handle<JSObject> prototype(
JSObject::cast(promise_fun->instance_prototype()), isolate());
native_context()->set_promise_prototype(*prototype);
InstallToStringTag(isolate_, prototype, factory->Promise_string());
Handle<JSFunction> promise_then = InstallFunctionWithBuiltinId(
isolate_, prototype, "then", Builtin::kPromisePrototypeThen, 2, true);
native_context()->set_promise_then(*promise_then);
InstallFunctionWithBuiltinId(isolate_, prototype, "catch",
Builtin::kPromisePrototypeCatch, 1, true);
InstallFunctionWithBuiltinId(isolate_, prototype, "finally",
Builtin::kPromisePrototypeFinally, 1, true);
DCHECK(promise_fun->HasFastProperties());
Handle<Map> prototype_map(prototype->map(), isolate());
Map::SetShouldBeFastPrototypeMap(prototype_map, true, isolate_);
CHECK_NE(prototype->map().ptr(),
isolate_->initial_object_prototype()->map().ptr());
prototype->map().set_instance_type(JS_PROMISE_PROTOTYPE_TYPE);
DCHECK(promise_fun->HasFastProperties());
}
{ // -- R e g E x p
// Builtin functions for RegExp.prototype.
Handle<JSFunction> regexp_fun = InstallFunction(
isolate_, global, "RegExp", JS_REG_EXP_TYPE,
JSRegExp::kHeaderSize + JSRegExp::kInObjectFieldCount * kTaggedSize,
JSRegExp::kInObjectFieldCount, factory->the_hole_value(),
Builtin::kRegExpConstructor);
InstallWithIntrinsicDefaultProto(isolate_, regexp_fun,
Context::REGEXP_FUNCTION_INDEX);
Handle<SharedFunctionInfo> shared(regexp_fun->shared(), isolate_);
shared->set_internal_formal_parameter_count(JSParameterCount(2));
shared->set_length(2);
{
// Setup %RegExpPrototype%.
Handle<JSObject> prototype(
JSObject::cast(regexp_fun->instance_prototype()), isolate());
native_context()->set_regexp_prototype(*prototype);
{
Handle<JSFunction> fun =
SimpleInstallFunction(isolate_, prototype, "exec",
Builtin::kRegExpPrototypeExec, 1, true);
native_context()->set_regexp_exec_function(*fun);
DCHECK_EQ(JSRegExp::kExecFunctionDescriptorIndex,
prototype->map().LastAdded().as_int());
}
SimpleInstallGetter(isolate_, prototype, factory->dotAll_string(),
Builtin::kRegExpPrototypeDotAllGetter, true);
SimpleInstallGetter(isolate_, prototype, factory->flags_string(),
Builtin::kRegExpPrototypeFlagsGetter, true);
SimpleInstallGetter(isolate_, prototype, factory->global_string(),
Builtin::kRegExpPrototypeGlobalGetter, true);
SimpleInstallGetter(isolate(), prototype, factory->hasIndices_string(),
Builtin::kRegExpPrototypeHasIndicesGetter, true);
SimpleInstallGetter(isolate_, prototype, factory->ignoreCase_string(),
Builtin::kRegExpPrototypeIgnoreCaseGetter, true);
SimpleInstallGetter(isolate_, prototype, factory->multiline_string(),
Builtin::kRegExpPrototypeMultilineGetter, true);
SimpleInstallGetter(isolate_, prototype, factory->source_string(),
Builtin::kRegExpPrototypeSourceGetter, true);
SimpleInstallGetter(isolate_, prototype, factory->sticky_string(),
Builtin::kRegExpPrototypeStickyGetter, true);
SimpleInstallGetter(isolate_, prototype, factory->unicode_string(),
Builtin::kRegExpPrototypeUnicodeGetter, true);
SimpleInstallFunction(isolate_, prototype, "compile",
Builtin::kRegExpPrototypeCompile, 2, true);
SimpleInstallFunction(isolate_, prototype, "toString",
Builtin::kRegExpPrototypeToString, 0, false);
SimpleInstallFunction(isolate_, prototype, "test",
Builtin::kRegExpPrototypeTest, 1, true);
{
Handle<JSFunction> fun = InstallFunctionAtSymbol(
isolate_, prototype, factory->match_symbol(), "[Symbol.match]",
Builtin::kRegExpPrototypeMatch, 1, true);
native_context()->set_regexp_match_function(*fun);
DCHECK_EQ(JSRegExp::kSymbolMatchFunctionDescriptorIndex,
prototype->map().LastAdded().as_int());
}
{
Handle<JSFunction> fun = InstallFunctionAtSymbol(
isolate_, prototype, factory->match_all_symbol(),
"[Symbol.matchAll]", Builtin::kRegExpPrototypeMatchAll, 1, true);
native_context()->set_regexp_match_all_function(*fun);
DCHECK_EQ(JSRegExp::kSymbolMatchAllFunctionDescriptorIndex,
prototype->map().LastAdded().as_int());
}
{
Handle<JSFunction> fun = InstallFunctionAtSymbol(
isolate_, prototype, factory->replace_symbol(), "[Symbol.replace]",
Builtin::kRegExpPrototypeReplace, 2, false);
native_context()->set_regexp_replace_function(*fun);
DCHECK_EQ(JSRegExp::kSymbolReplaceFunctionDescriptorIndex,
prototype->map().LastAdded().as_int());
}
{
Handle<JSFunction> fun = InstallFunctionAtSymbol(
isolate_, prototype, factory->search_symbol(), "[Symbol.search]",
Builtin::kRegExpPrototypeSearch, 1, true);
native_context()->set_regexp_search_function(*fun);
DCHECK_EQ(JSRegExp::kSymbolSearchFunctionDescriptorIndex,
prototype->map().LastAdded().as_int());
}
{
Handle<JSFunction> fun = InstallFunctionAtSymbol(
isolate_, prototype, factory->split_symbol(), "[Symbol.split]",
Builtin::kRegExpPrototypeSplit, 2, false);
native_context()->set_regexp_split_function(*fun);
DCHECK_EQ(JSRegExp::kSymbolSplitFunctionDescriptorIndex,
prototype->map().LastAdded().as_int());
}
Handle<Map> prototype_map(prototype->map(), isolate());
Map::SetShouldBeFastPrototypeMap(prototype_map, true, isolate_);
CHECK_NE((*prototype_map).ptr(),
isolate_->initial_object_prototype()->map().ptr());
prototype_map->set_instance_type(JS_REG_EXP_PROTOTYPE_TYPE);
// Store the initial RegExp.prototype map. This is used in fast-path
// checks. Do not alter the prototype after this point.
native_context()->set_regexp_prototype_map(*prototype_map);
}
{
// RegExp getters and setters.
InstallSpeciesGetter(isolate_, regexp_fun);
// Static properties set by a successful match.
SimpleInstallGetterSetter(isolate_, regexp_fun, factory->input_string(),
Builtin::kRegExpInputGetter,
Builtin::kRegExpInputSetter);
SimpleInstallGetterSetter(isolate_, regexp_fun, "$_",
Builtin::kRegExpInputGetter,
Builtin::kRegExpInputSetter);
SimpleInstallGetterSetter(isolate_, regexp_fun, "lastMatch",
Builtin::kRegExpLastMatchGetter,
Builtin::kEmptyFunction);
SimpleInstallGetterSetter(isolate_, regexp_fun, "$&",
Builtin::kRegExpLastMatchGetter,
Builtin::kEmptyFunction);
SimpleInstallGetterSetter(isolate_, regexp_fun, "lastParen",
Builtin::kRegExpLastParenGetter,
Builtin::kEmptyFunction);
SimpleInstallGetterSetter(isolate_, regexp_fun, "$+",
Builtin::kRegExpLastParenGetter,
Builtin::kEmptyFunction);
SimpleInstallGetterSetter(isolate_, regexp_fun, "leftContext",
Builtin::kRegExpLeftContextGetter,
Builtin::kEmptyFunction);
SimpleInstallGetterSetter(isolate_, regexp_fun, "$`",
Builtin::kRegExpLeftContextGetter,
Builtin::kEmptyFunction);
SimpleInstallGetterSetter(isolate_, regexp_fun, "rightContext",
Builtin::kRegExpRightContextGetter,
Builtin::kEmptyFunction);
SimpleInstallGetterSetter(isolate_, regexp_fun, "$'",
Builtin::kRegExpRightContextGetter,
Builtin::kEmptyFunction);
#define INSTALL_CAPTURE_GETTER(i) \
SimpleInstallGetterSetter(isolate_, regexp_fun, "$" #i, \
Builtin::kRegExpCapture##i##Getter, \
Builtin::kEmptyFunction)
INSTALL_CAPTURE_GETTER(1);
INSTALL_CAPTURE_GETTER(2);
INSTALL_CAPTURE_GETTER(3);
INSTALL_CAPTURE_GETTER(4);
INSTALL_CAPTURE_GETTER(5);
INSTALL_CAPTURE_GETTER(6);
INSTALL_CAPTURE_GETTER(7);
INSTALL_CAPTURE_GETTER(8);
INSTALL_CAPTURE_GETTER(9);
#undef INSTALL_CAPTURE_GETTER
}
SetConstructorInstanceType(isolate_, regexp_fun,
JS_REG_EXP_CONSTRUCTOR_TYPE);
DCHECK(regexp_fun->has_initial_map());
Handle<Map> initial_map(regexp_fun->initial_map(), isolate());
DCHECK_EQ(1, initial_map->GetInObjectProperties());
Map::EnsureDescriptorSlack(isolate_, initial_map, 1);
// ECMA-262, section 15.10.7.5.
PropertyAttributes writable =
static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE);
Descriptor d = Descriptor::DataField(isolate(), factory->lastIndex_string(),
JSRegExp::kLastIndexFieldIndex,
writable, Representation::Tagged());
initial_map->AppendDescriptor(isolate(), &d);
// Create the last match info.
Handle<RegExpMatchInfo> last_match_info = factory->NewRegExpMatchInfo();
native_context()->set_regexp_last_match_info(*last_match_info);
// Install the species protector cell.
Handle<PropertyCell> cell = factory->NewProtector();
native_context()->set_regexp_species_protector(*cell);
DCHECK(regexp_fun->HasFastProperties());
}
{ // --- R e g E x p S t r i n g I t e r a t o r ---
Handle<JSObject> iterator_prototype(
native_context()->initial_iterator_prototype(), isolate());
Handle<JSObject> regexp_string_iterator_prototype = factory->NewJSObject(
isolate()->object_function(), AllocationType::kOld);
JSObject::ForceSetPrototype(isolate(), regexp_string_iterator_prototype,
iterator_prototype);
InstallToStringTag(isolate(), regexp_string_iterator_prototype,
"RegExp String Iterator");
SimpleInstallFunction(isolate(), regexp_string_iterator_prototype, "next",
Builtin::kRegExpStringIteratorPrototypeNext, 0, true);
Handle<JSFunction> regexp_string_iterator_function = CreateFunction(
isolate(), "RegExpStringIterator", JS_REG_EXP_STRING_ITERATOR_TYPE,
JSRegExpStringIterator::kHeaderSize, 0,
regexp_string_iterator_prototype, Builtin::kIllegal);
regexp_string_iterator_function->shared().set_native(false);
native_context()->set_initial_regexp_string_iterator_prototype_map(
regexp_string_iterator_function->initial_map());
}
// -- E r r o r
InstallError(isolate_, global, factory->Error_string(),
Context::ERROR_FUNCTION_INDEX);
// -- A g g r e g a t e E r r o r
InstallError(isolate_, global, factory->AggregateError_string(),
Context::AGGREGATE_ERROR_FUNCTION_INDEX,
Builtin::kAggregateErrorConstructor, 2);
// -- E v a l E r r o r
InstallError(isolate_, global, factory->EvalError_string(),
Context::EVAL_ERROR_FUNCTION_INDEX);
// -- R a n g e E r r o r
InstallError(isolate_, global, factory->RangeError_string(),
Context::RANGE_ERROR_FUNCTION_INDEX);
// -- R e f e r e n c e E r r o r
InstallError(isolate_, global, factory->ReferenceError_string(),
Context::REFERENCE_ERROR_FUNCTION_INDEX);
// -- S y n t a x E r r o r
InstallError(isolate_, global, factory->SyntaxError_string(),
Context::SYNTAX_ERROR_FUNCTION_INDEX);
// -- T y p e E r r o r
InstallError(isolate_, global, factory->TypeError_string(),
Context::TYPE_ERROR_FUNCTION_INDEX);
// -- U R I E r r o r
InstallError(isolate_, global, factory->URIError_string(),
Context::URI_ERROR_FUNCTION_INDEX);
{ // -- C o m p i l e E r r o r
Handle<JSObject> dummy = factory->NewJSObject(isolate_->object_function());
InstallError(isolate_, dummy, factory->CompileError_string(),
Context::WASM_COMPILE_ERROR_FUNCTION_INDEX);
// -- L i n k E r r o r
InstallError(isolate_, dummy, factory->LinkError_string(),
Context::WASM_LINK_ERROR_FUNCTION_INDEX);
// -- R u n t i m e E r r o r
InstallError(isolate_, dummy, factory->RuntimeError_string(),
Context::WASM_RUNTIME_ERROR_FUNCTION_INDEX);
}
// Initialize the embedder data slot.
// TODO(ishell): microtask queue pointer will be moved from native context
// to the embedder data array so we don't need an empty embedder data array.
Handle<EmbedderDataArray> embedder_data = factory->NewEmbedderDataArray(0);
native_context()->set_embedder_data(*embedder_data);
{ // -- g l o b a l T h i s
Handle<JSGlobalProxy> global_proxy(native_context()->global_proxy(),
isolate_);
JSObject::AddProperty(isolate_, global, factory->globalThis_string(),
global_proxy, DONT_ENUM);
}
{ // -- J S O N
Handle<JSObject> json_object =
factory->NewJSObject(isolate_->object_function(), AllocationType::kOld);
JSObject::AddProperty(isolate_, global, "JSON", json_object, DONT_ENUM);
SimpleInstallFunction(isolate_, json_object, "parse", Builtin::kJsonParse,
2, false);
SimpleInstallFunction(isolate_, json_object, "stringify",
Builtin::kJsonStringify, 3, true);
InstallToStringTag(isolate_, json_object, "JSON");
native_context()->set_json_object(*json_object);
}
{ // -- M a t h
Handle<JSObject> math =
factory->NewJSObject(isolate_->object_function(), AllocationType::kOld);
JSObject::AddProperty(isolate_, global, "Math", math, DONT_ENUM);
SimpleInstallFunction(isolate_, math, "abs", Builtin::kMathAbs, 1, true);
SimpleInstallFunction(isolate_, math, "acos", Builtin::kMathAcos, 1, true);
SimpleInstallFunction(isolate_, math, "acosh", Builtin::kMathAcosh, 1,
true);
SimpleInstallFunction(isolate_, math, "asin", Builtin::kMathAsin, 1, true);
SimpleInstallFunction(isolate_, math, "asinh", Builtin::kMathAsinh, 1,
true);
SimpleInstallFunction(isolate_, math, "atan", Builtin::kMathAtan, 1, true);
SimpleInstallFunction(isolate_, math, "atanh", Builtin::kMathAtanh, 1,
true);
SimpleInstallFunction(isolate_, math, "atan2", Builtin::kMathAtan2, 2,
true);
SimpleInstallFunction(isolate_, math, "ceil", Builtin::kMathCeil, 1, true);
SimpleInstallFunction(isolate_, math, "cbrt", Builtin::kMathCbrt, 1, true);
SimpleInstallFunction(isolate_, math, "expm1", Builtin::kMathExpm1, 1,
true);
SimpleInstallFunction(isolate_, math, "clz32", Builtin::kMathClz32, 1,
true);
SimpleInstallFunction(isolate_, math, "cos", Builtin::kMathCos, 1, true);
SimpleInstallFunction(isolate_, math, "cosh", Builtin::kMathCosh, 1, true);
SimpleInstallFunction(isolate_, math, "exp", Builtin::kMathExp, 1, true);
SimpleInstallFunction(isolate_, math, "floor", Builtin::kMathFloor, 1,
true);
SimpleInstallFunction(isolate_, math, "fround", Builtin::kMathFround, 1,
true);
SimpleInstallFunction(isolate_, math, "hypot", Builtin::kMathHypot, 2,
false);
SimpleInstallFunction(isolate_, math, "imul", Builtin::kMathImul, 2, true);
SimpleInstallFunction(isolate_, math, "log", Builtin::kMathLog, 1, true);
SimpleInstallFunction(isolate_, math, "log1p", Builtin::kMathLog1p, 1,
true);
SimpleInstallFunction(isolate_, math, "log2", Builtin::kMathLog2, 1, true);
SimpleInstallFunction(isolate_, math, "log10", Builtin::kMathLog10, 1,
true);
SimpleInstallFunction(isolate_, math, "max", Builtin::kMathMax, 2, false);
SimpleInstallFunction(isolate_, math, "min", Builtin::kMathMin, 2, false);
SimpleInstallFunction(isolate_, math, "pow", Builtin::kMathPow, 2, true);
SimpleInstallFunction(isolate_, math, "random", Builtin::kMathRandom, 0,
true);
SimpleInstallFunction(isolate_, math, "round", Builtin::kMathRound, 1,
true);
SimpleInstallFunction(isolate_, math, "sign", Builtin::kMathSign, 1, true);
SimpleInstallFunction(isolate_, math, "sin", Builtin::kMathSin, 1, true);
SimpleInstallFunction(isolate_, math, "sinh", Builtin::kMathSinh, 1, true);
SimpleInstallFunction(isolate_, math, "sqrt", Builtin::kMathSqrt, 1, true);
SimpleInstallFunction(isolate_, math, "tan", Builtin::kMathTan, 1, true);
SimpleInstallFunction(isolate_, math, "tanh", Builtin::kMathTanh, 1, true);
SimpleInstallFunction(isolate_, math, "trunc", Builtin::kMathTrunc, 1,
true);
// Install math constants.
double const kE = base::ieee754::exp(1.0);
double const kPI = 3.1415926535897932;
InstallConstant(isolate_, math, "E", factory->NewNumber(kE));
InstallConstant(isolate_, math, "LN10",
factory->NewNumber(base::ieee754::log(10.0)));
InstallConstant(isolate_, math, "LN2",
factory->NewNumber(base::ieee754::log(2.0)));
InstallConstant(isolate_, math, "LOG10E",
factory->NewNumber(base::ieee754::log10(kE)));
InstallConstant(isolate_, math, "LOG2E",
factory->NewNumber(base::ieee754::log2(kE)));
InstallConstant(isolate_, math, "PI", factory->NewNumber(kPI));
InstallConstant(isolate_, math, "SQRT1_2",
factory->NewNumber(std::sqrt(0.5)));
InstallConstant(isolate_, math, "SQRT2",
factory->NewNumber(std::sqrt(2.0)));
InstallToStringTag(isolate_, math, "Math");
}
#ifdef V8_INTL_SUPPORT
{ // -- I n t l
Handle<JSObject> intl =
factory->NewJSObject(isolate_->object_function(), AllocationType::kOld);
JSObject::AddProperty(isolate_, global, "Intl", intl, DONT_ENUM);
// ecma402 #sec-Intl-toStringTag
// The initial value of the @@toStringTag property is the string value
// *"Intl"*.
InstallToStringTag(isolate_, intl, "Intl");
SimpleInstallFunction(isolate(), intl, "getCanonicalLocales",
Builtin::kIntlGetCanonicalLocales, 1, false);
SimpleInstallFunction(isolate(), intl, "supportedValuesOf",
Builtin::kIntlSupportedValuesOf, 1, false);
{ // -- D a t e T i m e F o r m a t
Handle<JSFunction> date_time_format_constructor = InstallFunction(
isolate_, intl, "DateTimeFormat", JS_DATE_TIME_FORMAT_TYPE,
JSDateTimeFormat::kHeaderSize, 0, factory->the_hole_value(),
Builtin::kDateTimeFormatConstructor);
date_time_format_constructor->shared().set_length(0);
date_time_format_constructor->shared().DontAdaptArguments();
InstallWithIntrinsicDefaultProto(
isolate_, date_time_format_constructor,
Context::INTL_DATE_TIME_FORMAT_FUNCTION_INDEX);
SimpleInstallFunction(
isolate(), date_time_format_constructor, "supportedLocalesOf",
Builtin::kDateTimeFormatSupportedLocalesOf, 1, false);
Handle<JSObject> prototype(
JSObject::cast(date_time_format_constructor->prototype()), isolate_);
InstallToStringTag(isolate_, prototype, "Intl.DateTimeFormat");
SimpleInstallFunction(isolate_, prototype, "resolvedOptions",
Builtin::kDateTimeFormatPrototypeResolvedOptions, 0,
false);
SimpleInstallFunction(isolate_, prototype, "formatToParts",
Builtin::kDateTimeFormatPrototypeFormatToParts, 1,
false);
SimpleInstallGetter(isolate_, prototype, factory->format_string(),
Builtin::kDateTimeFormatPrototypeFormat, false);
SimpleInstallFunction(isolate_, prototype, "formatRange",
Builtin::kDateTimeFormatPrototypeFormatRange, 2,
false);
SimpleInstallFunction(isolate_, prototype, "formatRangeToParts",
Builtin::kDateTimeFormatPrototypeFormatRangeToParts,
2, false);
}
{ // -- N u m b e r F o r m a t
Handle<JSFunction> number_format_constructor = InstallFunction(
isolate_, intl, "NumberFormat", JS_NUMBER_FORMAT_TYPE,
JSNumberFormat::kHeaderSize, 0, factory->the_hole_value(),
Builtin::kNumberFormatConstructor);
number_format_constructor->shared().set_length(0);
number_format_constructor->shared().DontAdaptArguments();
InstallWithIntrinsicDefaultProto(
isolate_, number_format_constructor,
Context::INTL_NUMBER_FORMAT_FUNCTION_INDEX);
SimpleInstallFunction(isolate(), number_format_constructor,
"supportedLocalesOf",
Builtin::kNumberFormatSupportedLocalesOf, 1, false);
Handle<JSObject> prototype(
JSObject::cast(number_format_constructor->prototype()), isolate_);
InstallToStringTag(isolate_, prototype, "Intl.NumberFormat");
SimpleInstallFunction(isolate_, prototype, "resolvedOptions",
Builtin::kNumberFormatPrototypeResolvedOptions, 0,
false);
SimpleInstallFunction(isolate_, prototype, "formatToParts",
Builtin::kNumberFormatPrototypeFormatToParts, 1,
false);
SimpleInstallGetter(isolate_, prototype, factory->format_string(),
Builtin::kNumberFormatPrototypeFormatNumber, false);
}
{ // -- C o l l a t o r
Handle<JSFunction> collator_constructor = InstallFunction(
isolate_, intl, "Collator", JS_COLLATOR_TYPE, JSCollator::kHeaderSize,
0, factory->the_hole_value(), Builtin::kCollatorConstructor);
collator_constructor->shared().DontAdaptArguments();
InstallWithIntrinsicDefaultProto(isolate_, collator_constructor,
Context::INTL_COLLATOR_FUNCTION_INDEX);
SimpleInstallFunction(isolate(), collator_constructor,
"supportedLocalesOf",
Builtin::kCollatorSupportedLocalesOf, 1, false);
Handle<JSObject> prototype(
JSObject::cast(collator_constructor->prototype()), isolate_);
InstallToStringTag(isolate_, prototype, "Intl.Collator");
SimpleInstallFunction(isolate_, prototype, "resolvedOptions",
Builtin::kCollatorPrototypeResolvedOptions, 0,
false);
SimpleInstallGetter(isolate_, prototype, factory->compare_string(),
Builtin::kCollatorPrototypeCompare, false);
}
{ // -- V 8 B r e a k I t e r a t o r
Handle<JSFunction> v8_break_iterator_constructor = InstallFunction(
isolate_, intl, "v8BreakIterator", JS_V8_BREAK_ITERATOR_TYPE,
JSV8BreakIterator::kHeaderSize, 0, factory->the_hole_value(),
Builtin::kV8BreakIteratorConstructor);
v8_break_iterator_constructor->shared().DontAdaptArguments();
SimpleInstallFunction(
isolate_, v8_break_iterator_constructor, "supportedLocalesOf",
Builtin::kV8BreakIteratorSupportedLocalesOf, 1, false);
Handle<JSObject> prototype(
JSObject::cast(v8_break_iterator_constructor->prototype()), isolate_);
InstallToStringTag(isolate_, prototype, factory->Object_string());
SimpleInstallFunction(isolate_, prototype, "resolvedOptions",
Builtin::kV8BreakIteratorPrototypeResolvedOptions,
0, false);
SimpleInstallGetter(isolate_, prototype, factory->adoptText_string(),
Builtin::kV8BreakIteratorPrototypeAdoptText, false);
SimpleInstallGetter(isolate_, prototype, factory->first_string(),
Builtin::kV8BreakIteratorPrototypeFirst, false);
SimpleInstallGetter(isolate_, prototype, factory->next_string(),
Builtin::kV8BreakIteratorPrototypeNext, false);
SimpleInstallGetter(isolate_, prototype, factory->current_string(),
Builtin::kV8BreakIteratorPrototypeCurrent, false);
SimpleInstallGetter(isolate_, prototype, factory->breakType_string(),
Builtin::kV8BreakIteratorPrototypeBreakType, false);
}
{ // -- P l u r a l R u l e s
Handle<JSFunction> plural_rules_constructor = InstallFunction(
isolate_, intl, "PluralRules", JS_PLURAL_RULES_TYPE,
JSPluralRules::kHeaderSize, 0, factory->the_hole_value(),
Builtin::kPluralRulesConstructor);
plural_rules_constructor->shared().DontAdaptArguments();
InstallWithIntrinsicDefaultProto(
isolate_, plural_rules_constructor,
Context::INTL_PLURAL_RULES_FUNCTION_INDEX);
SimpleInstallFunction(isolate(), plural_rules_constructor,
"supportedLocalesOf",
Builtin::kPluralRulesSupportedLocalesOf, 1, false);
Handle<JSObject> prototype(
JSObject::cast(plural_rules_constructor->prototype()), isolate_);
InstallToStringTag(isolate_, prototype, "Intl.PluralRules");
SimpleInstallFunction(isolate_, prototype, "resolvedOptions",
Builtin::kPluralRulesPrototypeResolvedOptions, 0,
false);
SimpleInstallFunction(isolate_, prototype, "select",
Builtin::kPluralRulesPrototypeSelect, 1, false);
}
{ // -- R e l a t i v e T i m e F o r m a t
Handle<JSFunction> relative_time_format_fun = InstallFunction(
isolate(), intl, "RelativeTimeFormat", JS_RELATIVE_TIME_FORMAT_TYPE,
JSRelativeTimeFormat::kHeaderSize, 0, factory->the_hole_value(),
Builtin::kRelativeTimeFormatConstructor);
relative_time_format_fun->shared().set_length(0);
relative_time_format_fun->shared().DontAdaptArguments();
InstallWithIntrinsicDefaultProto(
isolate_, relative_time_format_fun,
Context::INTL_RELATIVE_TIME_FORMAT_FUNCTION_INDEX);
SimpleInstallFunction(
isolate(), relative_time_format_fun, "supportedLocalesOf",
Builtin::kRelativeTimeFormatSupportedLocalesOf, 1, false);
// Setup %RelativeTimeFormatPrototype%.
Handle<JSObject> prototype(
JSObject::cast(relative_time_format_fun->instance_prototype()),
isolate());
InstallToStringTag(isolate(), prototype, "Intl.RelativeTimeFormat");
SimpleInstallFunction(
isolate(), prototype, "resolvedOptions",
Builtin::kRelativeTimeFormatPrototypeResolvedOptions, 0, false);
SimpleInstallFunction(isolate(), prototype, "format",
Builtin::kRelativeTimeFormatPrototypeFormat, 2,
false);
SimpleInstallFunction(isolate(), prototype, "formatToParts",
Builtin::kRelativeTimeFormatPrototypeFormatToParts,
2, false);
}
{ // -- L i s t F o r m a t
Handle<JSFunction> list_format_fun = InstallFunction(
isolate(), intl, "ListFormat", JS_LIST_FORMAT_TYPE,
JSListFormat::kHeaderSize, 0, factory->the_hole_value(),
Builtin::kListFormatConstructor);
list_format_fun->shared().set_length(0);
list_format_fun->shared().DontAdaptArguments();
InstallWithIntrinsicDefaultProto(
isolate_, list_format_fun, Context::INTL_LIST_FORMAT_FUNCTION_INDEX);
SimpleInstallFunction(isolate(), list_format_fun, "supportedLocalesOf",
Builtin::kListFormatSupportedLocalesOf, 1, false);
// Setup %ListFormatPrototype%.
Handle<JSObject> prototype(
JSObject::cast(list_format_fun->instance_prototype()), isolate());
InstallToStringTag(isolate(), prototype, "Intl.ListFormat");
SimpleInstallFunction(isolate(), prototype, "resolvedOptions",
Builtin::kListFormatPrototypeResolvedOptions, 0,
false);
SimpleInstallFunction(isolate(), prototype, "format",
Builtin::kListFormatPrototypeFormat, 1, false);
SimpleInstallFunction(isolate(), prototype, "formatToParts",
Builtin::kListFormatPrototypeFormatToParts, 1,
false);
}
{ // -- L o c a l e
Handle<JSFunction> locale_fun = InstallFunction(
isolate(), intl, "Locale", JS_LOCALE_TYPE, JSLocale::kHeaderSize, 0,
factory->the_hole_value(), Builtin::kLocaleConstructor);
InstallWithIntrinsicDefaultProto(isolate(), locale_fun,
Context::INTL_LOCALE_FUNCTION_INDEX);
locale_fun->shared().set_length(1);
locale_fun->shared().DontAdaptArguments();
// Setup %LocalePrototype%.
Handle<JSObject> prototype(
JSObject::cast(locale_fun->instance_prototype()), isolate());
InstallToStringTag(isolate(), prototype, "Intl.Locale");
SimpleInstallFunction(isolate(), prototype, "toString",
Builtin::kLocalePrototypeToString, 0, false);
SimpleInstallFunction(isolate(), prototype, "maximize",
Builtin::kLocalePrototypeMaximize, 0, false);
SimpleInstallFunction(isolate(), prototype, "minimize",
Builtin::kLocalePrototypeMinimize, 0, false);
// Base locale getters.
SimpleInstallGetter(isolate(), prototype, factory->language_string(),
Builtin::kLocalePrototypeLanguage, true);
SimpleInstallGetter(isolate(), prototype, factory->script_string(),
Builtin::kLocalePrototypeScript, true);
SimpleInstallGetter(isolate(), prototype, factory->region_string(),
Builtin::kLocalePrototypeRegion, true);
SimpleInstallGetter(isolate(), prototype, factory->baseName_string(),
Builtin::kLocalePrototypeBaseName, true);
// Unicode extension getters.
SimpleInstallGetter(isolate(), prototype, factory->calendar_string(),
Builtin::kLocalePrototypeCalendar, true);
SimpleInstallGetter(isolate(), prototype, factory->caseFirst_string(),
Builtin::kLocalePrototypeCaseFirst, true);
SimpleInstallGetter(isolate(), prototype, factory->collation_string(),
Builtin::kLocalePrototypeCollation, true);
SimpleInstallGetter(isolate(), prototype, factory->hourCycle_string(),
Builtin::kLocalePrototypeHourCycle, true);
SimpleInstallGetter(isolate(), prototype, factory->numeric_string(),
Builtin::kLocalePrototypeNumeric, true);
SimpleInstallGetter(isolate(), prototype,
factory->numberingSystem_string(),
Builtin::kLocalePrototypeNumberingSystem, true);
if (!v8_flags.harmony_remove_intl_locale_info_getters) {
// Intl Locale Info functions
SimpleInstallGetter(isolate(), prototype, factory->calendars_string(),
Builtin::kLocalePrototypeCalendars, true);
SimpleInstallGetter(isolate(), prototype, factory->collations_string(),
Builtin::kLocalePrototypeCollations, true);
SimpleInstallGetter(isolate(), prototype, factory->hourCycles_string(),
Builtin::kLocalePrototypeHourCycles, true);
SimpleInstallGetter(isolate(), prototype,
factory->numberingSystems_string(),
Builtin::kLocalePrototypeNumberingSystems, true);
SimpleInstallGetter(isolate(), prototype, factory->textInfo_string(),
Builtin::kLocalePrototypeTextInfo, true);
SimpleInstallGetter(isolate(), prototype, factory->timeZones_string(),
Builtin::kLocalePrototypeTimeZones, true);
SimpleInstallGetter(isolate(), prototype, factory->weekInfo_string(),
Builtin::kLocalePrototypeWeekInfo, true);
}
}
{ // -- D i s p l a y N a m e s
Handle<JSFunction> display_names_fun = InstallFunction(
isolate(), intl, "DisplayNames", JS_DISPLAY_NAMES_TYPE,
JSDisplayNames::kHeaderSize, 0, factory->the_hole_value(),
Builtin::kDisplayNamesConstructor);
display_names_fun->shared().set_length(2);
display_names_fun->shared().DontAdaptArguments();
InstallWithIntrinsicDefaultProto(
isolate(), display_names_fun,
Context::INTL_DISPLAY_NAMES_FUNCTION_INDEX);
SimpleInstallFunction(isolate(), display_names_fun, "supportedLocalesOf",
Builtin::kDisplayNamesSupportedLocalesOf, 1, false);
{
// Setup %DisplayNamesPrototype%.
Handle<JSObject> prototype(
JSObject::cast(display_names_fun->instance_prototype()), isolate());
InstallToStringTag(isolate(), prototype, "Intl.DisplayNames");
SimpleInstallFunction(isolate(), prototype, "resolvedOptions",
Builtin::kDisplayNamesPrototypeResolvedOptions, 0,
false);
SimpleInstallFunction(isolate(), prototype, "of",
Builtin::kDisplayNamesPrototypeOf, 1, false);
}
}
{ // -- S e g m e n t e r
Handle<JSFunction> segmenter_fun = InstallFunction(
isolate(), intl, "Segmenter", JS_SEGMENTER_TYPE,
JSSegmenter::kHeaderSize, 0, factory->the_hole_value(),
Builtin::kSegmenterConstructor);
segmenter_fun->shared().set_length(0);
segmenter_fun->shared().DontAdaptArguments();
InstallWithIntrinsicDefaultProto(isolate_, segmenter_fun,
Context::INTL_SEGMENTER_FUNCTION_INDEX);
SimpleInstallFunction(isolate(), segmenter_fun, "supportedLocalesOf",
Builtin::kSegmenterSupportedLocalesOf, 1, false);
{
// Setup %SegmenterPrototype%.
Handle<JSObject> prototype(
JSObject::cast(segmenter_fun->instance_prototype()), isolate());
// #sec-intl.segmenter.prototype-@@tostringtag
//
// Intl.Segmenter.prototype [ @@toStringTag ]
//
// The initial value of the @@toStringTag property is the String value
// "Intl.Segmenter".
InstallToStringTag(isolate(), prototype, "Intl.Segmenter");
SimpleInstallFunction(isolate(), prototype, "resolvedOptions",
Builtin::kSegmenterPrototypeResolvedOptions, 0,
false);
SimpleInstallFunction(isolate(), prototype, "segment",
Builtin::kSegmenterPrototypeSegment, 1, false);
}
{
// Setup %SegmentsPrototype%.
Handle<JSObject> prototype = factory->NewJSObject(
isolate()->object_function(), AllocationType::kOld);
Handle<String> name_string =
Name::ToFunctionName(isolate(), factory->Segments_string())
.ToHandleChecked();
Handle<JSFunction> segments_fun = CreateFunction(
isolate(), name_string, JS_SEGMENTS_TYPE, JSSegments::kHeaderSize,
0, prototype, Builtin::kIllegal);
segments_fun->shared().set_native(false);
segments_fun->shared().set_length(0);
segments_fun->shared().DontAdaptArguments();
SimpleInstallFunction(isolate(), prototype, "containing",
Builtin::kSegmentsPrototypeContaining, 1, false);
InstallFunctionAtSymbol(isolate_, prototype, factory->iterator_symbol(),
"[Symbol.iterator]",
Builtin::kSegmentsPrototypeIterator, 0, true,
DONT_ENUM);
Handle<Map> segments_map(segments_fun->initial_map(), isolate());
native_context()->set_intl_segments_map(*segments_map);
}
{
// Setup %SegmentIteratorPrototype%.
Handle<JSObject> iterator_prototype(
native_context()->initial_iterator_prototype(), isolate());
Handle<JSObject> prototype = factory->NewJSObject(
isolate()->object_function(), AllocationType::kOld);
JSObject::ForceSetPrototype(isolate(), prototype, iterator_prototype);
// #sec-%segmentiteratorprototype%.@@tostringtag
//
// %SegmentIteratorPrototype% [ @@toStringTag ]
//
// The initial value of the @@toStringTag property is the String value
// "Segmenter String Iterator".
InstallToStringTag(isolate(), prototype, "Segmenter String Iterator");
SimpleInstallFunction(isolate(), prototype, "next",
Builtin::kSegmentIteratorPrototypeNext, 0, false);
// Setup SegmentIterator constructor.
Handle<String> name_string =
Name::ToFunctionName(isolate(), factory->SegmentIterator_string())
.ToHandleChecked();
Handle<JSFunction> segment_iterator_fun = CreateFunction(
isolate(), name_string, JS_SEGMENT_ITERATOR_TYPE,
JSSegmentIterator::kHeaderSize, 0, prototype, Builtin::kIllegal);
segment_iterator_fun->shared().set_native(false);
Handle<Map> segment_iterator_map(segment_iterator_fun->initial_map(),
isolate());
native_context()->set_intl_segment_iterator_map(*segment_iterator_map);
}
}
}
#endif // V8_INTL_SUPPORT
{ // -- A r r a y B u f f e r
Handle<String> name = factory->ArrayBuffer_string();
Handle<JSFunction> array_buffer_fun = CreateArrayBuffer(name, ARRAY_BUFFER);
JSObject::AddProperty(isolate_, global, name, array_buffer_fun, DONT_ENUM);
InstallWithIntrinsicDefaultProto(isolate_, array_buffer_fun,
Context::ARRAY_BUFFER_FUN_INDEX);
InstallSpeciesGetter(isolate_, array_buffer_fun);
Handle<JSFunction> array_buffer_noinit_fun = SimpleCreateFunction(
isolate_,
factory->InternalizeUtf8String(
"arrayBufferConstructor_DoNotInitialize"),
Builtin::kArrayBufferConstructor_DoNotInitialize, 1, false);
native_context()->set_array_buffer_noinit_fun(*array_buffer_noinit_fun);
}
{ // -- S h a r e d A r r a y B u f f e r
Handle<String> name = factory->SharedArrayBuffer_string();
Handle<JSFunction> shared_array_buffer_fun =
CreateArrayBuffer(name, SHARED_ARRAY_BUFFER);
InstallWithIntrinsicDefaultProto(isolate_, shared_array_buffer_fun,
Context::SHARED_ARRAY_BUFFER_FUN_INDEX);
InstallSpeciesGetter(isolate_, shared_array_buffer_fun);
}
{ // -- A t o m i c s
Handle<JSObject> atomics_object =
factory->NewJSObject(isolate_->object_function(), AllocationType::kOld);
JSObject::AddProperty(isolate_, global, "Atomics", atomics_object,
DONT_ENUM);
InstallToStringTag(isolate_, atomics_object, "Atomics");
SimpleInstallFunction(isolate_, atomics_object, "load",
Builtin::kAtomicsLoad, 2, true);
SimpleInstallFunction(isolate_, atomics_object, "store",
Builtin::kAtomicsStore, 3, true);
SimpleInstallFunction(isolate_, atomics_object, "add", Builtin::kAtomicsAdd,
3, true);
SimpleInstallFunction(isolate_, atomics_object, "sub", Builtin::kAtomicsSub,
3, true);
SimpleInstallFunction(isolate_, atomics_object, "and", Builtin::kAtomicsAnd,
3, true);
SimpleInstallFunction(isolate_, atomics_object, "or", Builtin::kAtomicsOr,
3, true);
SimpleInstallFunction(isolate_, atomics_object, "xor", Builtin::kAtomicsXor,
3, true);
SimpleInstallFunction(isolate_, atomics_object, "exchange",
Builtin::kAtomicsExchange, 3, true);
SimpleInstallFunction(isolate_, atomics_object, "compareExchange",
Builtin::kAtomicsCompareExchange, 4, true);
SimpleInstallFunction(isolate_, atomics_object, "isLockFree",
Builtin::kAtomicsIsLockFree, 1, true);
SimpleInstallFunction(isolate_, atomics_object, "wait",
Builtin::kAtomicsWait, 4, true);
SimpleInstallFunction(isolate(), atomics_object, "waitAsync",
Builtin::kAtomicsWaitAsync, 4, true);
SimpleInstallFunction(isolate_, atomics_object, "notify",
Builtin::kAtomicsNotify, 3, true);
}
{ // -- T y p e d A r r a y
Handle<JSFunction> typed_array_fun = CreateFunction(
isolate_, factory->InternalizeUtf8String("TypedArray"),
JS_TYPED_ARRAY_TYPE, JSTypedArray::kHeaderSize, 0,
factory->the_hole_value(), Builtin::kTypedArrayBaseConstructor);
typed_array_fun->shared().set_native(false);
typed_array_fun->shared().set_length(0);
InstallSpeciesGetter(isolate_, typed_array_fun);
native_context()->set_typed_array_function(*typed_array_fun);
SimpleInstallFunction(isolate_, typed_array_fun, "of",
Builtin::kTypedArrayOf, 0, false);
SimpleInstallFunction(isolate_, typed_array_fun, "from",
Builtin::kTypedArrayFrom, 1, false);
// Setup %TypedArrayPrototype%.
Handle<JSObject> prototype(
JSObject::cast(typed_array_fun->instance_prototype()), isolate());
native_context()->set_typed_array_prototype(*prototype);
// Install the "buffer", "byteOffset", "byteLength", "length"
// and @@toStringTag getters on the {prototype}.
SimpleInstallGetter(isolate_, prototype, factory->buffer_string(),
Builtin::kTypedArrayPrototypeBuffer, false);
SimpleInstallGetter(isolate_, prototype, factory->byte_length_string(),
Builtin::kTypedArrayPrototypeByteLength, true);
SimpleInstallGetter(isolate_, prototype, factory->byte_offset_string(),
Builtin::kTypedArrayPrototypeByteOffset, true);
SimpleInstallGetter(isolate_, prototype, factory->length_string(),
Builtin::kTypedArrayPrototypeLength, true);
SimpleInstallGetter(isolate_, prototype, factory->to_string_tag_symbol(),
Builtin::kTypedArrayPrototypeToStringTag, true);
// Install "keys", "values" and "entries" methods on the {prototype}.
InstallFunctionWithBuiltinId(isolate_, prototype, "entries",
Builtin::kTypedArrayPrototypeEntries, 0, true);
InstallFunctionWithBuiltinId(isolate_, prototype, "keys",
Builtin::kTypedArrayPrototypeKeys, 0, true);
Handle<JSFunction> values = InstallFunctionWithBuiltinId(
isolate_, prototype, "values", Builtin::kTypedArrayPrototypeValues, 0,
true);
JSObject::AddProperty(isolate_, prototype, factory->iterator_symbol(),
values, DONT_ENUM);
// TODO(caitp): alphasort accessors/methods
SimpleInstallFunction(isolate_, prototype, "at",
Builtin::kTypedArrayPrototypeAt, 1, true);
SimpleInstallFunction(isolate_, prototype, "copyWithin",
Builtin::kTypedArrayPrototypeCopyWithin, 2, false);
SimpleInstallFunction(isolate_, prototype, "every",
Builtin::kTypedArrayPrototypeEvery, 1, false);
SimpleInstallFunction(isolate_, prototype, "fill",
Builtin::kTypedArrayPrototypeFill, 1, false);
SimpleInstallFunction(isolate_, prototype, "filter",
Builtin::kTypedArrayPrototypeFilter, 1, false);
SimpleInstallFunction(isolate_, prototype, "find",
Builtin::kTypedArrayPrototypeFind, 1, false);
SimpleInstallFunction(isolate_, prototype, "findIndex",
Builtin::kTypedArrayPrototypeFindIndex, 1, false);
SimpleInstallFunction(isolate_, prototype, "findLast",
Builtin::kTypedArrayPrototypeFindLast, 1, false);
SimpleInstallFunction(isolate_, prototype, "findLastIndex",
Builtin::kTypedArrayPrototypeFindLastIndex, 1, false);
SimpleInstallFunction(isolate_, prototype, "forEach",
Builtin::kTypedArrayPrototypeForEach, 1, false);
SimpleInstallFunction(isolate_, prototype, "includes",
Builtin::kTypedArrayPrototypeIncludes, 1, false);
SimpleInstallFunction(isolate_, prototype, "indexOf",
Builtin::kTypedArrayPrototypeIndexOf, 1, false);
SimpleInstallFunction(isolate_, prototype, "join",
Builtin::kTypedArrayPrototypeJoin, 1, false);
SimpleInstallFunction(isolate_, prototype, "lastIndexOf",
Builtin::kTypedArrayPrototypeLastIndexOf, 1, false);
SimpleInstallFunction(isolate_, prototype, "map",
Builtin::kTypedArrayPrototypeMap, 1, false);
SimpleInstallFunction(isolate_, prototype, "reverse",
Builtin::kTypedArrayPrototypeReverse, 0, false);
SimpleInstallFunction(isolate_, prototype, "reduce",
Builtin::kTypedArrayPrototypeReduce, 1, false);
SimpleInstallFunction(isolate_, prototype, "reduceRight",
Builtin::kTypedArrayPrototypeReduceRight, 1, false);
SimpleInstallFunction(isolate_, prototype, "set",
Builtin::kTypedArrayPrototypeSet, 1, false);
SimpleInstallFunction(isolate_, prototype, "slice",
Builtin::kTypedArrayPrototypeSlice, 2, false);
SimpleInstallFunction(isolate_, prototype, "some",
Builtin::kTypedArrayPrototypeSome, 1, false);
SimpleInstallFunction(isolate_, prototype, "sort",
Builtin::kTypedArrayPrototypeSort, 1, false);
SimpleInstallFunction(isolate_, prototype, "subarray",
Builtin::kTypedArrayPrototypeSubArray, 2, false);
SimpleInstallFunction(isolate_, prototype, "toLocaleString",
Builtin::kTypedArrayPrototypeToLocaleString, 0,
false);
JSObject::AddProperty(isolate_, prototype, factory->toString_string(),
array_prototype_to_string_fun, DONT_ENUM);
}
{// -- T y p e d A r r a y s
#define INSTALL_TYPED_ARRAY(Type, type, TYPE, ctype) \
{ \
Handle<JSFunction> fun = InstallTypedArray( \
#Type "Array", TYPE##_ELEMENTS, TYPE##_TYPED_ARRAY_CONSTRUCTOR_TYPE, \
Context::RAB_GSAB_##TYPE##_ARRAY_MAP_INDEX); \
InstallWithIntrinsicDefaultProto(isolate_, fun, \
Context::TYPE##_ARRAY_FUN_INDEX); \
}
TYPED_ARRAYS(INSTALL_TYPED_ARRAY)
#undef INSTALL_TYPED_ARRAY
}
{ // -- D a t a V i e w
Handle<JSFunction> data_view_fun = InstallFunction(
isolate_, global, "DataView", JS_DATA_VIEW_TYPE,
JSDataView::kSizeWithEmbedderFields, 0, factory->the_hole_value(),
Builtin::kDataViewConstructor);
InstallWithIntrinsicDefaultProto(isolate_, data_view_fun,
Context::DATA_VIEW_FUN_INDEX);
data_view_fun->shared().set_length(1);
data_view_fun->shared().DontAdaptArguments();
// Setup %DataViewPrototype%.
Handle<JSObject> prototype(
JSObject::cast(data_view_fun->instance_prototype()), isolate());
InstallToStringTag(isolate_, prototype, "DataView");
// Setup objects needed for the JSRabGsabDataView.
Handle<Map> rab_gsab_data_view_map = factory->NewMap(
JS_RAB_GSAB_DATA_VIEW_TYPE, JSDataView::kSizeWithEmbedderFields,
TERMINAL_FAST_ELEMENTS_KIND);
Map::SetPrototype(isolate(), rab_gsab_data_view_map, prototype);
rab_gsab_data_view_map->SetConstructor(*data_view_fun);
native_context()->set_js_rab_gsab_data_view_map(*rab_gsab_data_view_map);
// Install the "buffer", "byteOffset" and "byteLength" getters
// on the {prototype}.
SimpleInstallGetter(isolate_, prototype, factory->buffer_string(),
Builtin::kDataViewPrototypeGetBuffer, false);
SimpleInstallGetter(isolate_, prototype, factory->byte_length_string(),
Builtin::kDataViewPrototypeGetByteLength, false);
SimpleInstallGetter(isolate_, prototype, factory->byte_offset_string(),
Builtin::kDataViewPrototypeGetByteOffset, false);
SimpleInstallFunction(isolate_, prototype, "getInt8",
Builtin::kDataViewPrototypeGetInt8, 1, false);
SimpleInstallFunction(isolate_, prototype, "setInt8",
Builtin::kDataViewPrototypeSetInt8, 2, false);
SimpleInstallFunction(isolate_, prototype, "getUint8",
Builtin::kDataViewPrototypeGetUint8, 1, false);
SimpleInstallFunction(isolate_, prototype, "setUint8",
Builtin::kDataViewPrototypeSetUint8, 2, false);
SimpleInstallFunction(isolate_, prototype, "getInt16",
Builtin::kDataViewPrototypeGetInt16, 1, false);
SimpleInstallFunction(isolate_, prototype, "setInt16",
Builtin::kDataViewPrototypeSetInt16, 2, false);
SimpleInstallFunction(isolate_, prototype, "getUint16",
Builtin::kDataViewPrototypeGetUint16, 1, false);
SimpleInstallFunction(isolate_, prototype, "setUint16",
Builtin::kDataViewPrototypeSetUint16, 2, false);
SimpleInstallFunction(isolate_, prototype, "getInt32",
Builtin::kDataViewPrototypeGetInt32, 1, false);
SimpleInstallFunction(isolate_, prototype, "setInt32",
Builtin::kDataViewPrototypeSetInt32, 2, false);
SimpleInstallFunction(isolate_, prototype, "getUint32",
Builtin::kDataViewPrototypeGetUint32, 1, false);
SimpleInstallFunction(isolate_, prototype, "setUint32",
Builtin::kDataViewPrototypeSetUint32, 2, false);
SimpleInstallFunction(isolate_, prototype, "getFloat32",
Builtin::kDataViewPrototypeGetFloat32, 1, false);
SimpleInstallFunction(isolate_, prototype, "setFloat32",
Builtin::kDataViewPrototypeSetFloat32, 2, false);
SimpleInstallFunction(isolate_, prototype, "getFloat64",
Builtin::kDataViewPrototypeGetFloat64, 1, false);
SimpleInstallFunction(isolate_, prototype, "setFloat64",
Builtin::kDataViewPrototypeSetFloat64, 2, false);
SimpleInstallFunction(isolate_, prototype, "getBigInt64",
Builtin::kDataViewPrototypeGetBigInt64, 1, false);
SimpleInstallFunction(isolate_, prototype, "setBigInt64",
Builtin::kDataViewPrototypeSetBigInt64, 2, false);
SimpleInstallFunction(isolate_, prototype, "getBigUint64",
Builtin::kDataViewPrototypeGetBigUint64, 1, false);
SimpleInstallFunction(isolate_, prototype, "setBigUint64",
Builtin::kDataViewPrototypeSetBigUint64, 2, false);
}
{ // -- M a p
Handle<JSFunction> js_map_fun = InstallFunction(
isolate_, global, "Map", JS_MAP_TYPE, JSMap::kHeaderSize, 0,
factory->the_hole_value(), Builtin::kMapConstructor);
InstallWithIntrinsicDefaultProto(isolate_, js_map_fun,
Context::JS_MAP_FUN_INDEX);
Handle<SharedFunctionInfo> shared(js_map_fun->shared(), isolate_);
shared->DontAdaptArguments();
shared->set_length(0);
// Setup %MapPrototype%.
Handle<JSObject> prototype(JSObject::cast(js_map_fun->instance_prototype()),
isolate());
InstallToStringTag(isolate_, prototype, factory->Map_string());
Handle<JSFunction> map_get = SimpleInstallFunction(
isolate_, prototype, "get", Builtin::kMapPrototypeGet, 1, true);
native_context()->set_map_get(*map_get);
Handle<JSFunction> map_set = SimpleInstallFunction(
isolate_, prototype, "set", Builtin::kMapPrototypeSet, 2, true);
// Check that index of "set" function in JSCollection is correct.
DCHECK_EQ(JSCollection::kAddFunctionDescriptorIndex,
prototype->map().LastAdded().as_int());
native_context()->set_map_set(*map_set);
Handle<JSFunction> map_has = SimpleInstallFunction(
isolate_, prototype, "has", Builtin::kMapPrototypeHas, 1, true);
native_context()->set_map_has(*map_has);
Handle<JSFunction> map_delete = SimpleInstallFunction(
isolate_, prototype, "delete", Builtin::kMapPrototypeDelete, 1, true);
native_context()->set_map_delete(*map_delete);
SimpleInstallFunction(isolate_, prototype, "clear",
Builtin::kMapPrototypeClear, 0, true);
Handle<JSFunction> entries = SimpleInstallFunction(
isolate_, prototype, "entries", Builtin::kMapPrototypeEntries, 0, true);
JSObject::AddProperty(isolate_, prototype, factory->iterator_symbol(),
entries, DONT_ENUM);
SimpleInstallFunction(isolate_, prototype, "forEach",
Builtin::kMapPrototypeForEach, 1, false);
SimpleInstallFunction(isolate_, prototype, "keys",
Builtin::kMapPrototypeKeys, 0, true);
SimpleInstallGetter(isolate_, prototype,
factory->InternalizeUtf8String("size"),
Builtin::kMapPrototypeGetSize, true);
SimpleInstallFunction(isolate_, prototype, "values",
Builtin::kMapPrototypeValues, 0, true);
native_context()->set_initial_map_prototype_map(prototype->map());
InstallSpeciesGetter(isolate_, js_map_fun);
DCHECK(js_map_fun->HasFastProperties());
native_context()->set_js_map_map(js_map_fun->initial_map());
}
{ // -- B i g I n t
Handle<JSFunction> bigint_fun =
InstallFunction(isolate_, global, "BigInt", JS_PRIMITIVE_WRAPPER_TYPE,
JSPrimitiveWrapper::kHeaderSize, 0,
factory->the_hole_value(), Builtin::kBigIntConstructor);
bigint_fun->shared().DontAdaptArguments();
bigint_fun->shared().set_length(1);
InstallWithIntrinsicDefaultProto(isolate_, bigint_fun,
Context::BIGINT_FUNCTION_INDEX);
// Install the properties of the BigInt constructor.
// asUintN(bits, bigint)
SimpleInstallFunction(isolate_, bigint_fun, "asUintN",
Builtin::kBigIntAsUintN, 2, false);
// asIntN(bits, bigint)
SimpleInstallFunction(isolate_, bigint_fun, "asIntN",
Builtin::kBigIntAsIntN, 2, false);
// Set up the %BigIntPrototype%.
Handle<JSObject> prototype(JSObject::cast(bigint_fun->instance_prototype()),
isolate_);
JSFunction::SetPrototype(bigint_fun, prototype);
// Install the properties of the BigInt.prototype.
// "constructor" is created implicitly by InstallFunction() above.
// toLocaleString([reserved1 [, reserved2]])
SimpleInstallFunction(isolate_, prototype, "toLocaleString",
Builtin::kBigIntPrototypeToLocaleString, 0, false);
// toString([radix])
SimpleInstallFunction(isolate_, prototype, "toString",
Builtin::kBigIntPrototypeToString, 0, false);
// valueOf()
SimpleInstallFunction(isolate_, prototype, "valueOf",
Builtin::kBigIntPrototypeValueOf, 0, false);
// @@toStringTag
InstallToStringTag(isolate_, prototype, factory->BigInt_string());
}
{ // -- S e t
Handle<JSFunction> js_set_fun = InstallFunction(
isolate_, global, "Set", JS_SET_TYPE, JSSet::kHeaderSize, 0,
factory->the_hole_value(), Builtin::kSetConstructor);
InstallWithIntrinsicDefaultProto(isolate_, js_set_fun,
Context::JS_SET_FUN_INDEX);
Handle<SharedFunctionInfo> shared(js_set_fun->shared(), isolate_);
shared->DontAdaptArguments();
shared->set_length(0);
// Setup %SetPrototype%.
Handle<JSObject> prototype(JSObject::cast(js_set_fun->instance_prototype()),
isolate());
InstallToStringTag(isolate_, prototype, factory->Set_string());
Handle<JSFunction> set_has = SimpleInstallFunction(
isolate_, prototype, "has", Builtin::kSetPrototypeHas, 1, true);
native_context()->set_set_has(*set_has);
Handle<JSFunction> set_add = SimpleInstallFunction(
isolate_, prototype, "add", Builtin::kSetPrototypeAdd, 1, true);
// Check that index of "add" function in JSCollection is correct.
DCHECK_EQ(JSCollection::kAddFunctionDescriptorIndex,
prototype->map().LastAdded().as_int());
native_context()->set_set_add(*set_add);
Handle<JSFunction> set_delete = SimpleInstallFunction(
isolate_, prototype, "delete", Builtin::kSetPrototypeDelete, 1, true);
native_context()->set_set_delete(*set_delete);
SimpleInstallFunction(isolate_, prototype, "clear",
Builtin::kSetPrototypeClear, 0, true);
SimpleInstallFunction(isolate_, prototype, "entries",
Builtin::kSetPrototypeEntries, 0, true);
SimpleInstallFunction(isolate_, prototype, "forEach",
Builtin::kSetPrototypeForEach, 1, false);
SimpleInstallGetter(isolate_, prototype,
factory->InternalizeUtf8String("size"),
Builtin::kSetPrototypeGetSize, true);
Handle<JSFunction> values = SimpleInstallFunction(
isolate_, prototype, "values", Builtin::kSetPrototypeValues, 0, true);
JSObject::AddProperty(isolate_, prototype, factory->keys_string(), values,
DONT_ENUM);
JSObject::AddProperty(isolate_, prototype, factory->iterator_symbol(),
values, DONT_ENUM);
native_context()->set_initial_set_prototype_map(prototype->map());
native_context()->set_initial_set_prototype(*prototype);
InstallSpeciesGetter(isolate_, js_set_fun);
DCHECK(js_set_fun->HasFastProperties());
native_context()->set_js_set_map(js_set_fun->initial_map());
CHECK_NE(prototype->map().ptr(),
isolate_->initial_object_prototype()->map().ptr());
prototype->map().set_instance_type(JS_SET_PROTOTYPE_TYPE);
}
{ // -- J S M o d u l e N a m e s p a c e
Handle<Map> map = factory->NewMap(
JS_MODULE_NAMESPACE_TYPE, JSModuleNamespace::kSize,
TERMINAL_FAST_ELEMENTS_KIND, JSModuleNamespace::kInObjectFieldCount);
map->SetConstructor(native_context()->object_function());
Map::SetPrototype(isolate(), map, isolate_->factory()->null_value());
Map::EnsureDescriptorSlack(isolate_, map, 1);
native_context()->set_js_module_namespace_map(*map);
{ // Install @@toStringTag.
PropertyAttributes attribs =
static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY);
Descriptor d =
Descriptor::DataField(isolate(), factory->to_string_tag_symbol(),
JSModuleNamespace::kToStringTagFieldIndex,
attribs, Representation::Tagged());
map->AppendDescriptor(isolate(), &d);
}
}
{ // -- I t e r a t o r R e s u l t
// Setup the map for IterResultObjects created from builtins in such a
// way that it's exactly the same map as the one produced by object
// literals in the form `{value, done}`. This way we have better sharing
// of maps (i.e. less polymorphism) and also make it possible to hit the
// fast-paths in various builtins (i.e. promises and collections) with
// user defined iterators.
Handle<Map> map = factory->ObjectLiteralMapFromCache(native_context(), 2);
// value
map = Map::CopyWithField(isolate(), map, factory->value_string(),
FieldType::Any(isolate()), NONE,
PropertyConstness::kConst,
Representation::Tagged(), INSERT_TRANSITION)
.ToHandleChecked();
// done
map = Map::CopyWithField(isolate(), map, factory->done_string(),
FieldType::Any(isolate()), NONE,
PropertyConstness::kConst,
Representation::HeapObject(), INSERT_TRANSITION)
.ToHandleChecked();
native_context()->set_iterator_result_map(*map);
}
{ // -- W e a k M a p
Handle<JSFunction> cons = InstallFunction(
isolate_, global, "WeakMap", JS_WEAK_MAP_TYPE, JSWeakMap::kHeaderSize,
0, factory->the_hole_value(), Builtin::kWeakMapConstructor);
InstallWithIntrinsicDefaultProto(isolate_, cons,
Context::JS_WEAK_MAP_FUN_INDEX);
Handle<SharedFunctionInfo> shared(cons->shared(), isolate_);
shared->DontAdaptArguments();
shared->set_length(0);
// Setup %WeakMapPrototype%.
Handle<JSObject> prototype(JSObject::cast(cons->instance_prototype()),
isolate());
Handle<JSFunction> weakmap_delete =
SimpleInstallFunction(isolate_, prototype, "delete",
Builtin::kWeakMapPrototypeDelete, 1, true);
native_context()->set_weakmap_delete(*weakmap_delete);
Handle<JSFunction> weakmap_get = SimpleInstallFunction(
isolate_, prototype, "get", Builtin::kWeakMapGet, 1, true);
native_context()->set_weakmap_get(*weakmap_get);
Handle<JSFunction> weakmap_set = SimpleInstallFunction(
isolate_, prototype, "set", Builtin::kWeakMapPrototypeSet, 2, true);
// Check that index of "set" function in JSWeakCollection is correct.
DCHECK_EQ(JSWeakCollection::kAddFunctionDescriptorIndex,
prototype->map().LastAdded().as_int());
native_context()->set_weakmap_set(*weakmap_set);
SimpleInstallFunction(isolate_, prototype, "has",
Builtin::kWeakMapPrototypeHas, 1, true);
InstallToStringTag(isolate_, prototype, "WeakMap");
native_context()->set_initial_weakmap_prototype_map(prototype->map());
}
{ // -- W e a k S e t
Handle<JSFunction> cons = InstallFunction(
isolate_, global, "WeakSet", JS_WEAK_SET_TYPE, JSWeakSet::kHeaderSize,
0, factory->the_hole_value(), Builtin::kWeakSetConstructor);
InstallWithIntrinsicDefaultProto(isolate_, cons,
Context::JS_WEAK_SET_FUN_INDEX);
Handle<SharedFunctionInfo> shared(cons->shared(), isolate_);
shared->DontAdaptArguments();
shared->set_length(0);
// Setup %WeakSetPrototype%.
Handle<JSObject> prototype(JSObject::cast(cons->instance_prototype()),
isolate());
SimpleInstallFunction(isolate_, prototype, "delete",
Builtin::kWeakSetPrototypeDelete, 1, true);
SimpleInstallFunction(isolate_, prototype, "has",
Builtin::kWeakSetPrototypeHas, 1, true);
Handle<JSFunction> weakset_add = SimpleInstallFunction(
isolate_, prototype, "add", Builtin::kWeakSetPrototypeAdd, 1, true);
// Check that index of "add" function in JSWeakCollection is correct.
DCHECK_EQ(JSWeakCollection::kAddFunctionDescriptorIndex,
prototype->map().LastAdded().as_int());
native_context()->set_weakset_add(*weakset_add);
InstallToStringTag(isolate_, prototype,
factory->InternalizeUtf8String("WeakSet"));
native_context()->set_initial_weakset_prototype_map(prototype->map());
}
{ // -- P r o x y
CreateJSProxyMaps();
// Proxy function map has prototype slot for storing initial map but does
// not have a prototype property.
Handle<Map> proxy_function_map = Map::Copy(
isolate_, isolate_->strict_function_without_prototype_map(), "Proxy");
proxy_function_map->set_is_constructor(true);
Handle<String> name = factory->Proxy_string();
Handle<JSFunction> proxy_function = CreateFunctionForBuiltin(
isolate(), name, proxy_function_map, Builtin::kProxyConstructor);
isolate_->proxy_map()->SetConstructor(*proxy_function);
proxy_function->shared().set_internal_formal_parameter_count(
JSParameterCount(2));
proxy_function->shared().set_length(2);
native_context()->set_proxy_function(*proxy_function);
JSObject::AddProperty(isolate_, global, name, proxy_function, DONT_ENUM);
DCHECK(!proxy_function->has_prototype_property());
SimpleInstallFunction(isolate_, proxy_function, "revocable",
Builtin::kProxyRevocable, 2, true);
}
{ // -- R e f l e c t
Handle<String> reflect_string = factory->InternalizeUtf8String("Reflect");
Handle<JSObject> reflect =
factory->NewJSObject(isolate_->object_function(), AllocationType::kOld);
JSObject::AddProperty(isolate_, global, reflect_string, reflect, DONT_ENUM);
InstallToStringTag(isolate_, reflect, reflect_string);
SimpleInstallFunction(isolate_, reflect, "defineProperty",
Builtin::kReflectDefineProperty, 3, true);
SimpleInstallFunction(isolate_, reflect, "deleteProperty",
Builtin::kReflectDeleteProperty, 2, true);
Handle<JSFunction> apply = SimpleInstallFunction(
isolate_, reflect, "apply", Builtin::kReflectApply, 3, false);
native_context()->set_reflect_apply(*apply);
Handle<JSFunction> construct = SimpleInstallFunction(
isolate_, reflect, "construct", Builtin::kReflectConstruct, 2, false);
native_context()->set_reflect_construct(*construct);
SimpleInstallFunction(isolate_, reflect, "get", Builtin::kReflectGet, 2,
false);
SimpleInstallFunction(isolate_, reflect, "getOwnPropertyDescriptor",
Builtin::kReflectGetOwnPropertyDescriptor, 2, true);
SimpleInstallFunction(isolate_, reflect, "getPrototypeOf",
Builtin::kReflectGetPrototypeOf, 1, true);
SimpleInstallFunction(isolate_, reflect, "has", Builtin::kReflectHas, 2,
true);
SimpleInstallFunction(isolate_, reflect, "isExtensible",
Builtin::kReflectIsExtensible, 1, true);
SimpleInstallFunction(isolate_, reflect, "ownKeys",
Builtin::kReflectOwnKeys, 1, true);
SimpleInstallFunction(isolate_, reflect, "preventExtensions",
Builtin::kReflectPreventExtensions, 1, true);
SimpleInstallFunction(isolate_, reflect, "set", Builtin::kReflectSet, 3,
false);
SimpleInstallFunction(isolate_, reflect, "setPrototypeOf",
Builtin::kReflectSetPrototypeOf, 2, true);
}
{ // --- B o u n d F u n c t i o n
Handle<Map> map =
factory->NewMap(JS_BOUND_FUNCTION_TYPE, JSBoundFunction::kHeaderSize,
TERMINAL_FAST_ELEMENTS_KIND, 0);
map->SetConstructor(native_context()->object_function());
map->set_is_callable(true);
Map::SetPrototype(isolate(), map, empty_function);
PropertyAttributes roc_attribs =
static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY);
Map::EnsureDescriptorSlack(isolate_, map, 2);
{ // length
static_assert(
JSFunctionOrBoundFunctionOrWrappedFunction::kLengthDescriptorIndex ==
0);
Descriptor d = Descriptor::AccessorConstant(
factory->length_string(), factory->bound_function_length_accessor(),
roc_attribs);
map->AppendDescriptor(isolate(), &d);
}
{ // name
static_assert(
JSFunctionOrBoundFunctionOrWrappedFunction::kNameDescriptorIndex ==
1);
Descriptor d = Descriptor::AccessorConstant(
factory->name_string(), factory->bound_function_name_accessor(),
roc_attribs);
map->AppendDescriptor(isolate(), &d);
}
native_context()->set_bound_function_without_constructor_map(*map);
map = Map::Copy(isolate_, map, "IsConstructor");
map->set_is_constructor(true);
native_context()->set_bound_function_with_constructor_map(*map);
}
{ // -- F i n a l i z a t i o n R e g i s t r y
Handle<JSFunction> finalization_registry_fun = InstallFunction(
isolate_, global, factory->FinalizationRegistry_string(),
JS_FINALIZATION_REGISTRY_TYPE, JSFinalizationRegistry::kHeaderSize, 0,
factory->the_hole_value(), Builtin::kFinalizationRegistryConstructor);
InstallWithIntrinsicDefaultProto(
isolate_, finalization_registry_fun,
Context::JS_FINALIZATION_REGISTRY_FUNCTION_INDEX);
finalization_registry_fun->shared().DontAdaptArguments();
finalization_registry_fun->shared().set_length(1);
Handle<JSObject> finalization_registry_prototype(
JSObject::cast(finalization_registry_fun->instance_prototype()),
isolate());
InstallToStringTag(isolate_, finalization_registry_prototype,
factory->FinalizationRegistry_string());
SimpleInstallFunction(isolate_, finalization_registry_prototype, "register",
Builtin::kFinalizationRegistryRegister, 2, false);
SimpleInstallFunction(isolate_, finalization_registry_prototype,
"unregister",
Builtin::kFinalizationRegistryUnregister, 1, false);
// The cleanupSome function is created but not exposed, as it is used
// internally by InvokeFinalizationRegistryCleanupFromTask.
//
// It is exposed by v8_flags.harmony_weak_refs_with_cleanup_some.
Handle<JSFunction> cleanup_some_fun = SimpleCreateFunction(
isolate_, factory->InternalizeUtf8String("cleanupSome"),
Builtin::kFinalizationRegistryPrototypeCleanupSome, 0, false);
native_context()->set_finalization_registry_cleanup_some(*cleanup_some_fun);
}
{ // -- W e a k R e f
Handle<JSFunction> weak_ref_fun = InstallFunction(
isolate_, global, "WeakRef", JS_WEAK_REF_TYPE, JSWeakRef::kHeaderSize,
0, factory->the_hole_value(), Builtin::kWeakRefConstructor);
InstallWithIntrinsicDefaultProto(isolate_, weak_ref_fun,
Context::JS_WEAK_REF_FUNCTION_INDEX);
weak_ref_fun->shared().DontAdaptArguments();
weak_ref_fun->shared().set_length(1);
Handle<JSObject> weak_ref_prototype(
JSObject::cast(weak_ref_fun->instance_prototype()), isolate());
InstallToStringTag(isolate_, weak_ref_prototype, factory->WeakRef_string());
SimpleInstallFunction(isolate_, weak_ref_prototype, "deref",
Builtin::kWeakRefDeref, 0, true);
}
{ // --- sloppy arguments map
Handle<String> arguments_string = factory->Arguments_string();
Handle<JSFunction> function = CreateFunctionForBuiltinWithPrototype(
isolate(), arguments_string, Builtin::kIllegal,
isolate()->initial_object_prototype(), JS_ARGUMENTS_OBJECT_TYPE,
JSSloppyArgumentsObject::kSize, 2, MUTABLE);
Handle<Map> map(function->initial_map(), isolate());
// Create the descriptor array for the arguments object.
Map::EnsureDescriptorSlack(isolate_, map, 2);
{ // length
Descriptor d =
Descriptor::DataField(isolate(), factory->length_string(),
JSSloppyArgumentsObject::kLengthIndex,
DONT_ENUM, Representation::Tagged());
map->AppendDescriptor(isolate(), &d);
}
{ // callee
Descriptor d =
Descriptor::DataField(isolate(), factory->callee_string(),
JSSloppyArgumentsObject::kCalleeIndex,
DONT_ENUM, Representation::Tagged());
map->AppendDescriptor(isolate(), &d);
}
// @@iterator method is added later.
native_context()->set_sloppy_arguments_map(*map);
DCHECK(!map->is_dictionary_map());
DCHECK(IsObjectElementsKind(map->elements_kind()));
}
{ // --- fast and slow aliased arguments map
Handle<Map> map = isolate_->sloppy_arguments_map();
map = Map::Copy(isolate_, map, "FastAliasedArguments");
map->set_elements_kind(FAST_SLOPPY_ARGUMENTS_ELEMENTS);
DCHECK_EQ(2, map->GetInObjectProperties());
native_context()->set_fast_aliased_arguments_map(*map);
map = Map::Copy(isolate_, map, "SlowAliasedArguments");
map->set_elements_kind(SLOW_SLOPPY_ARGUMENTS_ELEMENTS);
DCHECK_EQ(2, map->GetInObjectProperties());
native_context()->set_slow_aliased_arguments_map(*map);
}
{ // --- strict mode arguments map
const PropertyAttributes attributes =
static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY);
// Create the ThrowTypeError function.
Handle<AccessorPair> callee = factory->NewAccessorPair();
Handle<JSFunction> poison = GetThrowTypeErrorIntrinsic();
// Install the ThrowTypeError function.
callee->set_getter(*poison);
callee->set_setter(*poison);
// Create the map. Allocate one in-object field for length.
Handle<Map> map =
factory->NewMap(JS_ARGUMENTS_OBJECT_TYPE,
JSStrictArgumentsObject::kSize, PACKED_ELEMENTS, 1);
// Create the descriptor array for the arguments object.
Map::EnsureDescriptorSlack(isolate_, map, 2);
{ // length
Descriptor d =
Descriptor::DataField(isolate(), factory->length_string(),
JSStrictArgumentsObject::kLengthIndex,
DONT_ENUM, Representation::Tagged());
map->AppendDescriptor(isolate(), &d);
}
{ // callee
Descriptor d = Descriptor::AccessorConstant(factory->callee_string(),
callee, attributes);
map->AppendDescriptor(isolate(), &d);
}
// @@iterator method is added later.
DCHECK_EQ(native_context()->object_function().prototype(),
*isolate_->initial_object_prototype());
Map::SetPrototype(isolate(), map, isolate_->initial_object_prototype());
// Copy constructor from the sloppy arguments boilerplate.
map->SetConstructor(
native_context()->sloppy_arguments_map().GetConstructor());
native_context()->set_strict_arguments_map(*map);
DCHECK(!map->is_dictionary_map());
DCHECK(IsObjectElementsKind(map->elements_kind()));
}
{ // --- context extension
// Create a function for the context extension objects.
Handle<JSFunction> context_extension_fun = CreateFunction(
isolate_, factory->empty_string(), JS_CONTEXT_EXTENSION_OBJECT_TYPE,
JSObject::kHeaderSize, 0, factory->the_hole_value(), Builtin::kIllegal);
native_context()->set_context_extension_function(*context_extension_fun);
}
{
// Set up the call-as-function delegate.
Handle<JSFunction> delegate = SimpleCreateFunction(
isolate_, factory->empty_string(),
Builtin::kHandleApiCallAsFunctionDelegate, 0, false);
native_context()->set_call_as_function_delegate(*delegate);
}
{
// Set up the call-as-constructor delegate.
Handle<JSFunction> delegate = SimpleCreateFunction(
isolate_, factory->empty_string(),
Builtin::kHandleApiCallAsConstructorDelegate, 0, false);
native_context()->set_call_as_constructor_delegate(*delegate);
}
}
Handle<JSFunction> Genesis::InstallTypedArray(const char* name,
ElementsKind elements_kind,
InstanceType constructor_type,
int rab_gsab_initial_map_index) {
Handle<JSObject> global =
Handle<JSObject>(native_context()->global_object(), isolate());
Handle<JSObject> typed_array_prototype = isolate()->typed_array_prototype();
Handle<JSFunction> typed_array_function = isolate()->typed_array_function();
Handle<JSFunction> result = InstallFunction(
isolate(), global, name, JS_TYPED_ARRAY_TYPE,
JSTypedArray::kSizeWithEmbedderFields, 0, factory()->the_hole_value(),
Builtin::kTypedArrayConstructor);
result->initial_map().set_elements_kind(elements_kind);
result->shared().DontAdaptArguments();
result->shared().set_length(3);
CHECK(JSObject::SetPrototype(isolate(), result, typed_array_function, false,
kDontThrow)
.FromJust());
Handle<Smi> bytes_per_element(
Smi::FromInt(1 << ElementsKindToShiftSize(elements_kind)), isolate());
InstallConstant(isolate(), result, "BYTES_PER_ELEMENT", bytes_per_element);
// TODO(v8:11256, ishell): given the granularity of typed array contructor
// protectors, consider creating only one constructor instance type for all
// typed array constructors.
SetConstructorInstanceType(isolate_, result, constructor_type);
// Setup prototype object.
DCHECK(result->prototype().IsJSObject());
Handle<JSObject> prototype(JSObject::cast(result->prototype()), isolate());
CHECK(JSObject::SetPrototype(isolate(), prototype, typed_array_prototype,
false, kDontThrow)
.FromJust());
CHECK_NE(prototype->map().ptr(),
isolate_->initial_object_prototype()->map().ptr());
prototype->map().set_instance_type(JS_TYPED_ARRAY_PROTOTYPE_TYPE);
InstallConstant(isolate(), prototype, "BYTES_PER_ELEMENT", bytes_per_element);
// RAB / GSAB backed TypedArrays don't have separate constructors, but they
// have their own maps. Create the corresponding map here.
Handle<Map> rab_gsab_initial_map = factory()->NewMap(
JS_TYPED_ARRAY_TYPE, JSTypedArray::kSizeWithEmbedderFields,
GetCorrespondingRabGsabElementsKind(elements_kind), 0);
rab_gsab_initial_map->SetConstructor(*result);
native_context()->set(rab_gsab_initial_map_index, *rab_gsab_initial_map,
UPDATE_WRITE_BARRIER, kReleaseStore);
Map::SetPrototype(isolate(), rab_gsab_initial_map, prototype);
return result;
}
void Genesis::InitializeExperimentalGlobal() {
#define FEATURE_INITIALIZE_GLOBAL(id, descr) InitializeGlobal_##id();
// Initialize features from more mature to less mature, because less mature
// features may depend on more mature features having been initialized
// already.
HARMONY_SHIPPING(FEATURE_INITIALIZE_GLOBAL)
HARMONY_STAGED(FEATURE_INITIALIZE_GLOBAL)
HARMONY_INPROGRESS(FEATURE_INITIALIZE_GLOBAL)
#undef FEATURE_INITIALIZE_GLOBAL
InitializeGlobal_regexp_linear_flag();
InitializeGlobal_sharedarraybuffer();
}
bool Genesis::CompileExtension(Isolate* isolate, v8::Extension* extension) {
Factory* factory = isolate->factory();
HandleScope scope(isolate);
Handle<SharedFunctionInfo> function_info;
Handle<String> source =
isolate->factory()
->NewExternalStringFromOneByte(extension->source())
.ToHandleChecked();
DCHECK(source->IsOneByteRepresentation());
// If we can't find the function in the cache, we compile a new
// function and insert it into the cache.
base::Vector<const char> name = base::CStrVector(extension->name());
SourceCodeCache* cache = isolate->bootstrapper()->extensions_cache();
Handle<Context> context(isolate->context(), isolate);
DCHECK(context->IsNativeContext());
if (!cache->Lookup(isolate, name, &function_info)) {
Handle<String> script_name =
factory->NewStringFromUtf8(name).ToHandleChecked();
MaybeHandle<SharedFunctionInfo> maybe_function_info =
Compiler::GetSharedFunctionInfoForScriptWithExtension(
isolate, source, ScriptDetails(script_name), extension,
ScriptCompiler::kNoCompileOptions, EXTENSION_CODE);
if (!maybe_function_info.ToHandle(&function_info)) return false;
cache->Add(isolate, name, function_info);
}
// Set up the function context. Conceptually, we should clone the
// function before overwriting the context but since we're in a
// single-threaded environment it is not strictly necessary.
Handle<JSFunction> fun =
Factory::JSFunctionBuilder{isolate, function_info, context}.Build();
// Call function using either the runtime object or the global
// object as the receiver. Provide no parameters.
Handle<Object> receiver = isolate->global_object();
Handle<FixedArray> host_defined_options =
isolate->factory()->empty_fixed_array();
return !Execution::TryCallScript(isolate, fun, receiver, host_defined_options,
Execution::MessageHandling::kKeepPending,
nullptr)
.is_null();
}
void Genesis::InitializeIteratorFunctions() {
Isolate* isolate = isolate_;
Factory* factory = isolate->factory();
HandleScope scope(isolate);
Handle<NativeContext> native_context = isolate->native_context();
Handle<JSObject> iterator_prototype(
native_context->initial_iterator_prototype(), isolate);
{ // -- G e n e r a t o r
PrototypeIterator iter(isolate, native_context->generator_function_map());
Handle<JSObject> generator_function_prototype(iter.GetCurrent<JSObject>(),
isolate);
Handle<JSFunction> generator_function_function = CreateFunction(
isolate, "GeneratorFunction", JS_FUNCTION_TYPE,
JSFunction::kSizeWithPrototype, 0, generator_function_prototype,
Builtin::kGeneratorFunctionConstructor);
generator_function_function->set_prototype_or_initial_map(
native_context->generator_function_map(), kReleaseStore);
generator_function_function->shared().DontAdaptArguments();
generator_function_function->shared().set_length(1);
InstallWithIntrinsicDefaultProto(
isolate, generator_function_function,
Context::GENERATOR_FUNCTION_FUNCTION_INDEX);
JSObject::ForceSetPrototype(isolate, generator_function_function,
isolate->function_function());
JSObject::AddProperty(
isolate, generator_function_prototype, factory->constructor_string(),
generator_function_function,
static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY));
native_context->generator_function_map().SetConstructor(
*generator_function_function);
native_context->generator_function_with_name_map().SetConstructor(
*generator_function_function);
}
{ // -- A s y n c G e n e r a t o r
PrototypeIterator iter(isolate,
native_context->async_generator_function_map());
Handle<JSObject> async_generator_function_prototype(
iter.GetCurrent<JSObject>(), isolate);
Handle<JSFunction> async_generator_function_function = CreateFunction(
isolate, "AsyncGeneratorFunction", JS_FUNCTION_TYPE,
JSFunction::kSizeWithPrototype, 0, async_generator_function_prototype,
Builtin::kAsyncGeneratorFunctionConstructor);
async_generator_function_function->set_prototype_or_initial_map(
native_context->async_generator_function_map(), kReleaseStore);
async_generator_function_function->shared().DontAdaptArguments();
async_generator_function_function->shared().set_length(1);
InstallWithIntrinsicDefaultProto(
isolate, async_generator_function_function,
Context::ASYNC_GENERATOR_FUNCTION_FUNCTION_INDEX);
JSObject::ForceSetPrototype(isolate, async_generator_function_function,
isolate->function_function());
JSObject::AddProperty(
isolate, async_generator_function_prototype,
factory->constructor_string(), async_generator_function_function,
static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY));
native_context->async_generator_function_map().SetConstructor(
*async_generator_function_function);
native_context->async_generator_function_with_name_map().SetConstructor(
*async_generator_function_function);
}
{ // -- S e t I t e r a t o r
// Setup %SetIteratorPrototype%.
Handle<JSObject> prototype =
factory->NewJSObject(isolate->object_function(), AllocationType::kOld);
JSObject::ForceSetPrototype(isolate, prototype, iterator_prototype);
InstallToStringTag(isolate, prototype, factory->SetIterator_string());
// Install the next function on the {prototype}.
InstallFunctionWithBuiltinId(isolate, prototype, "next",
Builtin::kSetIteratorPrototypeNext, 0, true);
native_context->set_initial_set_iterator_prototype(*prototype);
CHECK_NE(prototype->map().ptr(),
isolate_->initial_object_prototype()->map().ptr());
prototype->map().set_instance_type(JS_SET_ITERATOR_PROTOTYPE_TYPE);
// Setup SetIterator constructor.
Handle<JSFunction> set_iterator_function = CreateFunction(
isolate, "SetIterator", JS_SET_VALUE_ITERATOR_TYPE,
JSSetIterator::kHeaderSize, 0, prototype, Builtin::kIllegal);
set_iterator_function->shared().set_native(false);
Handle<Map> set_value_iterator_map(set_iterator_function->initial_map(),
isolate);
native_context->set_set_value_iterator_map(*set_value_iterator_map);
Handle<Map> set_key_value_iterator_map = Map::Copy(
isolate, set_value_iterator_map, "JS_SET_KEY_VALUE_ITERATOR_TYPE");
set_key_value_iterator_map->set_instance_type(
JS_SET_KEY_VALUE_ITERATOR_TYPE);
native_context->set_set_key_value_iterator_map(*set_key_value_iterator_map);
}
{ // -- M a p I t e r a t o r
// Setup %MapIteratorPrototype%.
Handle<JSObject> prototype =
factory->NewJSObject(isolate->object_function(), AllocationType::kOld);
JSObject::ForceSetPrototype(isolate, prototype, iterator_prototype);
InstallToStringTag(isolate, prototype, factory->MapIterator_string());
// Install the next function on the {prototype}.
InstallFunctionWithBuiltinId(isolate, prototype, "next",
Builtin::kMapIteratorPrototypeNext, 0, true);
native_context->set_initial_map_iterator_prototype(*prototype);
CHECK_NE(prototype->map().ptr(),
isolate_->initial_object_prototype()->map().ptr());
prototype->map().set_instance_type(JS_MAP_ITERATOR_PROTOTYPE_TYPE);
// Setup MapIterator constructor.
Handle<JSFunction> map_iterator_function = CreateFunction(
isolate, "MapIterator", JS_MAP_KEY_ITERATOR_TYPE,
JSMapIterator::kHeaderSize, 0, prototype, Builtin::kIllegal);
map_iterator_function->shared().set_native(false);
Handle<Map> map_key_iterator_map(map_iterator_function->initial_map(),
isolate);
native_context->set_map_key_iterator_map(*map_key_iterator_map);
Handle<Map> map_key_value_iterator_map = Map::Copy(
isolate, map_key_iterator_map, "JS_MAP_KEY_VALUE_ITERATOR_TYPE");
map_key_value_iterator_map->set_instance_type(
JS_MAP_KEY_VALUE_ITERATOR_TYPE);
native_context->set_map_key_value_iterator_map(*map_key_value_iterator_map);
Handle<Map> map_value_iterator_map =
Map::Copy(isolate, map_key_iterator_map, "JS_MAP_VALUE_ITERATOR_TYPE");
map_value_iterator_map->set_instance_type(JS_MAP_VALUE_ITERATOR_TYPE);
native_context->set_map_value_iterator_map(*map_value_iterator_map);
}
{ // -- A s y n c F u n c t i o n
// Builtin functions for AsyncFunction.
PrototypeIterator iter(isolate, native_context->async_function_map());
Handle<JSObject> async_function_prototype(iter.GetCurrent<JSObject>(),
isolate);
Handle<JSFunction> async_function_constructor = CreateFunction(
isolate, "AsyncFunction", JS_FUNCTION_TYPE,
JSFunction::kSizeWithPrototype, 0, async_function_prototype,
Builtin::kAsyncFunctionConstructor);
async_function_constructor->set_prototype_or_initial_map(
native_context->async_function_map(), kReleaseStore);
async_function_constructor->shared().DontAdaptArguments();
async_function_constructor->shared().set_length(1);
InstallWithIntrinsicDefaultProto(
isolate, async_function_constructor,
Context::ASYNC_FUNCTION_FUNCTION_INDEX);
native_context->set_async_function_constructor(*async_function_constructor);
JSObject::ForceSetPrototype(isolate, async_function_constructor,
isolate->function_function());
JSObject::AddProperty(
isolate, async_function_prototype, factory->constructor_string(),
async_function_constructor,
static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY));
// Async functions don't have a prototype, but they use generator objects
// under the hood to model the suspend/resume (in await). Instead of using
// the "prototype" / initial_map machinery (like for (async) generators),
// there's one global (per native context) map here that is used for the
// async function generator objects. These objects never escape to user
// JavaScript anyways.
Handle<Map> async_function_object_map = factory->NewMap(
JS_ASYNC_FUNCTION_OBJECT_TYPE, JSAsyncFunctionObject::kHeaderSize);
native_context->set_async_function_object_map(*async_function_object_map);
isolate_->async_function_map()->SetConstructor(*async_function_constructor);
isolate_->async_function_with_name_map()->SetConstructor(
*async_function_constructor);
}
}
void Genesis::InitializeCallSiteBuiltins() {
Factory* factory = isolate()->factory();
HandleScope scope(isolate());
// -- C a l l S i t e
// Builtin functions for CallSite.
// CallSites are a special case; the constructor is for our private use
// only, therefore we set it up as a builtin that throws. Internally, we use
// CallSiteUtils::Construct to create CallSite objects.
Handle<JSFunction> callsite_fun = CreateFunction(
isolate(), "CallSite", JS_OBJECT_TYPE, JSObject::kHeaderSize, 0,
factory->the_hole_value(), Builtin::kUnsupportedThrower);
callsite_fun->shared().DontAdaptArguments();
isolate()->native_context()->set_callsite_function(*callsite_fun);
// Setup CallSite.prototype.
Handle<JSObject> prototype(JSObject::cast(callsite_fun->instance_prototype()),
isolate());
struct FunctionInfo {
const char* name;
Builtin id;
};
FunctionInfo infos[] = {
{"getColumnNumber", Builtin::kCallSitePrototypeGetColumnNumber},
{"getEnclosingColumnNumber",
Builtin::kCallSitePrototypeGetEnclosingColumnNumber},
{"getEnclosingLineNumber",
Builtin::kCallSitePrototypeGetEnclosingLineNumber},
{"getEvalOrigin", Builtin::kCallSitePrototypeGetEvalOrigin},
{"getFileName", Builtin::kCallSitePrototypeGetFileName},
{"getFunction", Builtin::kCallSitePrototypeGetFunction},
{"getFunctionName", Builtin::kCallSitePrototypeGetFunctionName},
{"getLineNumber", Builtin::kCallSitePrototypeGetLineNumber},
{"getMethodName", Builtin::kCallSitePrototypeGetMethodName},
{"getPosition", Builtin::kCallSitePrototypeGetPosition},
{"getPromiseIndex", Builtin::kCallSitePrototypeGetPromiseIndex},
{"getScriptNameOrSourceURL",
Builtin::kCallSitePrototypeGetScriptNameOrSourceURL},
{"getScriptHash", Builtin::kCallSitePrototypeGetScriptHash},
{"getThis", Builtin::kCallSitePrototypeGetThis},
{"getTypeName", Builtin::kCallSitePrototypeGetTypeName},
{"isAsync", Builtin::kCallSitePrototypeIsAsync},
{"isConstructor", Builtin::kCallSitePrototypeIsConstructor},
{"isEval", Builtin::kCallSitePrototypeIsEval},
{"isNative", Builtin::kCallSitePrototypeIsNative},
{"isPromiseAll", Builtin::kCallSitePrototypeIsPromiseAll},
{"isToplevel", Builtin::kCallSitePrototypeIsToplevel},
{"toString", Builtin::kCallSitePrototypeToString}};
PropertyAttributes attrs =
static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY);
Handle<JSFunction> fun;
for (const FunctionInfo& info : infos) {
SimpleInstallFunction(isolate(), prototype, info.name, info.id, 0, true,
attrs);
}
}
void Genesis::InitializeConsole(Handle<JSObject> extras_binding) {
HandleScope scope(isolate());
Factory* factory = isolate_->factory();
// -- C o n s o l e
Handle<String> name = factory->console_string();
Handle<NativeContext> context(isolate_->native_context());
Handle<JSGlobalObject> global(context->global_object(), isolate());
Handle<SharedFunctionInfo> info =
factory->NewSharedFunctionInfoForBuiltin(name, Builtin::kIllegal);
info->set_language_mode(LanguageMode::kStrict);
Handle<JSFunction> cons =
Factory::JSFunctionBuilder{isolate(), info, context}.Build();
Handle<JSObject> empty = factory->NewJSObject(isolate_->object_function());
JSFunction::SetPrototype(cons, empty);
Handle<JSObject> console = factory->NewJSObject(cons, AllocationType::kOld);
DCHECK(console->IsJSObject());
JSObject::AddProperty(isolate_, extras_binding, name, console, DONT_ENUM);
// TODO(v8:11989): remove this in the next release
JSObject::AddProperty(isolate_, global, name, console, DONT_ENUM);
SimpleInstallFunction(isolate_, console, "debug", Builtin::kConsoleDebug, 0,
false, NONE);
SimpleInstallFunction(isolate_, console, "error", Builtin::kConsoleError, 0,
false, NONE);
SimpleInstallFunction(isolate_, console, "info", Builtin::kConsoleInfo, 0,
false, NONE);
SimpleInstallFunction(isolate_, console, "log", Builtin::kConsoleLog, 0,
false, NONE);
SimpleInstallFunction(isolate_, console, "warn", Builtin::kConsoleWarn, 0,
false, NONE);
SimpleInstallFunction(isolate_, console, "dir", Builtin::kConsoleDir, 0,
false, NONE);
SimpleInstallFunction(isolate_, console, "dirxml", Builtin::kConsoleDirXml, 0,
false, NONE);
SimpleInstallFunction(isolate_, console, "table", Builtin::kConsoleTable, 0,
false, NONE);
SimpleInstallFunction(isolate_, console, "trace", Builtin::kConsoleTrace, 0,
false, NONE);
SimpleInstallFunction(isolate_, console, "group", Builtin::kConsoleGroup, 0,
false, NONE);
SimpleInstallFunction(isolate_, console, "groupCollapsed",
Builtin::kConsoleGroupCollapsed, 0, false, NONE);
SimpleInstallFunction(isolate_, console, "groupEnd",
Builtin::kConsoleGroupEnd, 0, false, NONE);
SimpleInstallFunction(isolate_, console, "clear", Builtin::kConsoleClear, 0,
false, NONE);
SimpleInstallFunction(isolate_, console, "count", Builtin::kConsoleCount, 0,
false, NONE);
SimpleInstallFunction(isolate_, console, "countReset",
Builtin::kConsoleCountReset, 0, false, NONE);
SimpleInstallFunction(isolate_, console, "assert",
Builtin::kFastConsoleAssert, 0, false, NONE);
SimpleInstallFunction(isolate_, console, "profile", Builtin::kConsoleProfile,
0, false, NONE);
SimpleInstallFunction(isolate_, console, "profileEnd",
Builtin::kConsoleProfileEnd, 0, false, NONE);
SimpleInstallFunction(isolate_, console, "time", Builtin::kConsoleTime, 0,
false, NONE);
SimpleInstallFunction(isolate_, console, "timeLog", Builtin::kConsoleTimeLog,
0, false, NONE);
SimpleInstallFunction(isolate_, console, "timeEnd", Builtin::kConsoleTimeEnd,
0, false, NONE);
SimpleInstallFunction(isolate_, console, "timeStamp",
Builtin::kConsoleTimeStamp, 0, false, NONE);
SimpleInstallFunction(isolate_, console, "context", Builtin::kConsoleContext,
1, true, NONE);
InstallToStringTag(isolate_, console, "console");
}
#define EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(id) \
void Genesis::InitializeGlobal_##id() {}
EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_import_assertions)
EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_rab_gsab_transfer)
#ifdef V8_INTL_SUPPORT
EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_intl_best_fit_matcher)
EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_remove_intl_locale_info_getters)
#endif // V8_INTL_SUPPORT
#undef EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE
void Genesis::InitializeGlobal_harmony_iterator_helpers() {
if (!v8_flags.harmony_iterator_helpers) return;
// --- Iterator
Handle<JSGlobalObject> global(native_context()->global_object(), isolate());
Handle<JSObject> iterator_prototype(
native_context()->initial_iterator_prototype(), isolate());
Handle<JSFunction> iterator_function = InstallFunction(
isolate(), global, "Iterator", JS_OBJECT_TYPE, JSObject::kHeaderSize, 0,
iterator_prototype, Builtin::kIteratorConstructor);
iterator_function->shared().DontAdaptArguments();
iterator_function->shared().set_length(0);
SimpleInstallFunction(isolate(), iterator_function, "from",
Builtin::kIteratorFrom, 1, true);
InstallWithIntrinsicDefaultProto(isolate(), iterator_function,
Context::ITERATOR_FUNCTION_INDEX);
// --- %WrapForValidIteratorPrototype%
Handle<JSObject> wrap_for_valid_iterator_prototype = factory()->NewJSObject(
isolate()->object_function(), AllocationType::kOld);
JSObject::ForceSetPrototype(isolate(), wrap_for_valid_iterator_prototype,
iterator_prototype);
JSObject::AddProperty(isolate(), iterator_prototype,
factory()->constructor_string(), iterator_function,
DONT_ENUM);
SimpleInstallFunction(isolate(), wrap_for_valid_iterator_prototype, "next",
Builtin::kWrapForValidIteratorPrototypeNext, 0, true);
SimpleInstallFunction(isolate(), wrap_for_valid_iterator_prototype, "return",
Builtin::kWrapForValidIteratorPrototypeReturn, 0, true);
Handle<Map> valid_iterator_wrapper_map = factory()->NewMap(
JS_VALID_ITERATOR_WRAPPER_TYPE, JSValidIteratorWrapper::kHeaderSize,
TERMINAL_FAST_ELEMENTS_KIND, 0);
Map::SetPrototype(isolate(), valid_iterator_wrapper_map,
wrap_for_valid_iterator_prototype);
valid_iterator_wrapper_map->SetConstructor(*iterator_function);
native_context()->set_valid_iterator_wrapper_map(*valid_iterator_wrapper_map);
// --- %IteratorHelperPrototype%
Handle<JSObject> iterator_helper_prototype = factory()->NewJSObject(
isolate()->object_function(), AllocationType::kOld);
JSObject::ForceSetPrototype(isolate(), iterator_helper_prototype,
iterator_prototype);
InstallToStringTag(isolate(), iterator_helper_prototype, "Iterator Helper");
SimpleInstallFunction(isolate(), iterator_helper_prototype, "next",
Builtin::kIteratorHelperPrototypeNext, 0, true);
SimpleInstallFunction(isolate(), iterator_helper_prototype, "return",
Builtin::kIteratorHelperPrototypeReturn, 0, true);
SimpleInstallFunction(isolate(), iterator_prototype, "reduce",
Builtin::kIteratorPrototypeReduce, 1, false);
SimpleInstallFunction(isolate(), iterator_prototype, "toArray",
Builtin::kIteratorPrototypeToArray, 0, true);
SimpleInstallFunction(isolate(), iterator_prototype, "forEach",
Builtin::kIteratorPrototypeForEach, 1, true);
SimpleInstallFunction(isolate(), iterator_prototype, "some",
Builtin::kIteratorPrototypeSome, 1, true);
SimpleInstallFunction(isolate(), iterator_prototype, "every",
Builtin::kIteratorPrototypeEvery, 1, true);
SimpleInstallFunction(isolate(), iterator_prototype, "find",
Builtin::kIteratorPrototypeFind, 1, true);
// Add @@toStringTag to Iterator.prototype
// https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype-@@tostringtag
// We cannot use `InstallToStringTag` because this toStringTag, unlike other
// toStringTag values, is writable.
JSObject::AddProperty(isolate(), iterator_prototype,
isolate()->factory()->to_string_tag_symbol(),
isolate()->factory()->InternalizeUtf8String("Iterator"),
static_cast<PropertyAttributes>(DONT_ENUM));
// --- Helper maps
#define INSTALL_ITERATOR_HELPER(lowercase_name, Capitalized_name, \
ALL_CAPS_NAME, argc) \
{ \
Handle<Map> map = \
factory()->NewMap(JS_ITERATOR_##ALL_CAPS_NAME##_HELPER_TYPE, \
JSIterator##Capitalized_name##Helper::kHeaderSize, \
TERMINAL_FAST_ELEMENTS_KIND, 0); \
Map::SetPrototype(isolate(), map, iterator_helper_prototype); \
map->SetConstructor(*iterator_function); \
native_context()->set_iterator_##lowercase_name##_helper_map(*map); \
SimpleInstallFunction(isolate(), iterator_prototype, #lowercase_name, \
Builtin::kIteratorPrototype##Capitalized_name, argc, \
true); \
}
#define ITERATOR_HELPERS(V) \
V(map, Map, MAP, 1) \
V(filter, Filter, FILTER, 1) \
V(take, Take, TAKE, 1) \
V(drop, Drop, DROP, 1) \
V(flatMap, FlatMap, FLAT_MAP, 1)
ITERATOR_HELPERS(INSTALL_ITERATOR_HELPER)
#undef INSTALL_ITERATOR_HELPER
#undef ITERATOR_HELPERS
}
void Genesis::InitializeGlobal_harmony_set_methods() {
if (!v8_flags.harmony_set_methods) return;
Handle<JSObject> set_prototype(native_context()->initial_set_prototype(),
isolate());
SimpleInstallFunction(isolate(), set_prototype, "union",
Builtin::kSetPrototypeUnion, 1, true);
SimpleInstallFunction(isolate(), set_prototype, "intersection",
Builtin::kSetPrototypeIntersection, 1, true);
}
void Genesis::InitializeGlobal_harmony_json_parse_with_source() {
if (!v8_flags.harmony_json_parse_with_source) return;
Handle<Map> map = factory()->NewMap(JS_RAW_JSON_TYPE, JSRawJson::kInitialSize,
TERMINAL_FAST_ELEMENTS_KIND, 1);
Map::EnsureDescriptorSlack(isolate_, map, 1);
{
Descriptor d = Descriptor::DataField(
isolate(), factory()->raw_json_string(),
JSRawJson::kRawJsonInitialIndex, NONE, Representation::Tagged());
map->AppendDescriptor(isolate(), &d);
}
map->SetPrototype(isolate(), map, isolate()->factory()->null_value());
map->SetConstructor(native_context()->object_function());
native_context()->set_js_raw_json_map(*map);
// TODO(v8:12955): Remove the LOG after the flag is removed and this map goes
// into the startup snapshot. It is needed for the
// LogMapsTest.LogMapsDetailsContexts unittest.
LOG(isolate(), MapDetails(*map));
SimpleInstallFunction(isolate_,
handle(native_context()->json_object(), isolate_),
"rawJSON", Builtin::kJsonRawJson, 1, true);
SimpleInstallFunction(isolate_,
handle(native_context()->json_object(), isolate_),
"isRawJSON", Builtin::kJsonIsRawJson, 1, true);
}
void Genesis::InitializeGlobal_harmony_change_array_by_copy() {
if (!v8_flags.harmony_change_array_by_copy) return;
{
Handle<JSFunction> array_function(native_context()->array_function(),
isolate());
Handle<JSObject> array_prototype(
JSObject::cast(array_function->instance_prototype()), isolate());
SimpleInstallFunction(isolate_, array_prototype, "toReversed",
Builtin::kArrayPrototypeToReversed, 0, true);
SimpleInstallFunction(isolate_, array_prototype, "toSorted",
Builtin::kArrayPrototypeToSorted, 1, false);
SimpleInstallFunction(isolate_, array_prototype, "toSpliced",
Builtin::kArrayPrototypeToSpliced, 2, false);
SimpleInstallFunction(isolate_, array_prototype, "with",
Builtin::kArrayPrototypeWith, 2, true);
Handle<JSObject> unscopables = Handle<JSObject>::cast(
JSObject::GetProperty(isolate(), array_prototype,
isolate()->factory()->unscopables_symbol())
.ToHandleChecked());
InstallTrueValuedProperty(isolate_, unscopables, "toReversed");
InstallTrueValuedProperty(isolate_, unscopables, "toSorted");
InstallTrueValuedProperty(isolate_, unscopables, "toSpliced");
}
{
Handle<JSObject> prototype(native_context()->typed_array_prototype(),
isolate());
SimpleInstallFunction(isolate_, prototype, "toReversed",
Builtin::kTypedArrayPrototypeToReversed, 0, true);
SimpleInstallFunction(isolate_, prototype, "toSorted",
Builtin::kTypedArrayPrototypeToSorted, 1, false);
SimpleInstallFunction(isolate_, prototype, "with",
Builtin::kTypedArrayPrototypeWith, 2, true);
}
}
void Genesis::InitializeGlobal_harmony_regexp_unicode_sets() {
if (!v8_flags.harmony_regexp_unicode_sets) return;
Handle<JSFunction> regexp_fun(native_context()->regexp_function(), isolate());
Handle<JSObject> regexp_prototype(
JSObject::cast(regexp_fun->instance_prototype()), isolate());
SimpleInstallGetter(isolate(), regexp_prototype,
factory()->unicodeSets_string(),
Builtin::kRegExpPrototypeUnicodeSetsGetter, true);
// Store regexp prototype map again after change.
native_context()->set_regexp_prototype_map(regexp_prototype->map());
}
void Genesis::InitializeGlobal_harmony_shadow_realm() {
if (!v8_flags.harmony_shadow_realm) return;
Factory* factory = isolate()->factory();
// -- S h a d o w R e a l m
// #sec-shadowrealm-objects
Handle<JSGlobalObject> global(native_context()->global_object(), isolate());
Handle<JSFunction> shadow_realm_fun =
InstallFunction(isolate_, global, "ShadowRealm", JS_SHADOW_REALM_TYPE,
JSShadowRealm::kHeaderSize, 0, factory->the_hole_value(),
Builtin::kShadowRealmConstructor);
shadow_realm_fun->shared().set_length(0);
shadow_realm_fun->shared().DontAdaptArguments();
// Setup %ShadowRealmPrototype%.
Handle<JSObject> prototype(
JSObject::cast(shadow_realm_fun->instance_prototype()), isolate());
InstallToStringTag(isolate_, prototype, factory->ShadowRealm_string());
SimpleInstallFunction(isolate_, prototype, "evaluate",
Builtin::kShadowRealmPrototypeEvaluate, 1, true);
SimpleInstallFunction(isolate_, prototype, "importValue",
Builtin::kShadowRealmPrototypeImportValue, 2, true);
{ // --- W r a p p e d F u n c t i o n
Handle<Map> map = factory->NewMap(JS_WRAPPED_FUNCTION_TYPE,
JSWrappedFunction::kHeaderSize,
TERMINAL_FAST_ELEMENTS_KIND, 0);
map->SetConstructor(native_context()->object_function());
map->set_is_callable(true);
Handle<JSObject> empty_function(native_context()->function_prototype(),
isolate());
Map::SetPrototype(isolate(), map, empty_function);
PropertyAttributes roc_attribs =
static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY);
Map::EnsureDescriptorSlack(isolate_, map, 2);
{ // length
static_assert(
JSFunctionOrBoundFunctionOrWrappedFunction::kLengthDescriptorIndex ==
0);
Descriptor d = Descriptor::AccessorConstant(
factory->length_string(), factory->wrapped_function_length_accessor(),
roc_attribs);
map->AppendDescriptor(isolate(), &d);
}
{ // name
static_assert(
JSFunctionOrBoundFunctionOrWrappedFunction::kNameDescriptorIndex ==
1);
Descriptor d = Descriptor::AccessorConstant(
factory->name_string(), factory->wrapped_function_name_accessor(),
roc_attribs);
map->AppendDescriptor(isolate(), &d);
}
native_context()->set_wrapped_function_map(*map);
}
// Internal steps of ShadowRealmImportValue
{
Handle<JSFunction> shadow_realm_import_value_rejected =
SimpleCreateFunction(isolate(), factory->empty_string(),
Builtin::kShadowRealmImportValueRejected, 1,
false);
shadow_realm_import_value_rejected->shared().set_native(false);
native_context()->set_shadow_realm_import_value_rejected(
*shadow_realm_import_value_rejected);
}
}
void Genesis::InitializeGlobal_harmony_struct() {
if (!v8_flags.harmony_struct) return;
ReadOnlyRoots roots(isolate());
Handle<JSGlobalObject> global(native_context()->global_object(), isolate());
Handle<JSObject> atomics_object = Handle<JSObject>::cast(
JSReceiver::GetProperty(isolate(), global, "Atomics").ToHandleChecked());
{
// Install shared objects @@hasInstance in the native context.
Handle<JSFunction> has_instance = SimpleCreateFunction(
isolate(), factory()->empty_string(),
Builtin::kSharedSpaceJSObjectHasInstance, 1, false);
native_context()->set_shared_space_js_object_has_instance(*has_instance);
}
{ // SharedStructType
Handle<String> name =
isolate()->factory()->InternalizeUtf8String("SharedStructType");
Handle<JSFunction> shared_struct_type_fun = CreateFunctionForBuiltin(
isolate(), name,
isolate()->strict_function_with_readonly_prototype_map(),
Builtin::kSharedStructTypeConstructor);
JSObject::MakePrototypesFast(shared_struct_type_fun, kStartAtReceiver,
isolate());
shared_struct_type_fun->shared().set_native(true);
shared_struct_type_fun->shared().DontAdaptArguments();
shared_struct_type_fun->shared().set_length(1);
JSObject::AddProperty(isolate(), global, "SharedStructType",
shared_struct_type_fun, DONT_ENUM);
SimpleInstallFunction(isolate(), shared_struct_type_fun, "isSharedStruct",
Builtin::kSharedStructTypeIsSharedStruct, 1, true);
}
{ // SharedArray
Handle<String> shared_array_str =
isolate()->factory()->InternalizeUtf8String("SharedArray");
Handle<JSFunction> shared_array_fun = CreateSharedObjectConstructor(
isolate(), shared_array_str, roots.js_shared_array_map_handle(),
Builtin::kSharedArrayConstructor);
shared_array_fun->shared().set_internal_formal_parameter_count(
JSParameterCount(0));
shared_array_fun->shared().set_length(0);
// Install SharedArray constructor.
JSObject::AddProperty(isolate(), global, "SharedArray", shared_array_fun,
DONT_ENUM);
SimpleInstallFunction(isolate(), shared_array_fun, "isSharedArray",
Builtin::kSharedArrayIsSharedArray, 1, true);
}
{ // Atomics.Mutex
Handle<String> mutex_str =
isolate()->factory()->InternalizeUtf8String("Mutex");
Handle<JSFunction> mutex_fun = CreateSharedObjectConstructor(
isolate(), mutex_str, roots.js_atomics_mutex_map_handle(),
Builtin::kAtomicsMutexConstructor);
mutex_fun->shared().set_internal_formal_parameter_count(
JSParameterCount(0));
mutex_fun->shared().set_length(0);
JSObject::AddProperty(isolate(), atomics_object, mutex_str, mutex_fun,
DONT_ENUM);
SimpleInstallFunction(isolate(), mutex_fun, "lock",
Builtin::kAtomicsMutexLock, 2, true);
SimpleInstallFunction(isolate(), mutex_fun, "tryLock",
Builtin::kAtomicsMutexTryLock, 2, true);
SimpleInstallFunction(isolate(), mutex_fun, "isMutex",
Builtin::kAtomicsMutexIsMutex, 1, true);
}
{ // Atomics.Condition
Handle<String> condition_str =
isolate()->factory()->InternalizeUtf8String("Condition");
Handle<JSFunction> condition_fun = CreateSharedObjectConstructor(
isolate(), condition_str, roots.js_atomics_condition_map_handle(),
Builtin::kAtomicsConditionConstructor);
condition_fun->shared().set_internal_formal_parameter_count(
JSParameterCount(0));
condition_fun->shared().set_length(0);
JSObject::AddProperty(isolate(), atomics_object, condition_str,
condition_fun, DONT_ENUM);
SimpleInstallFunction(isolate(), condition_fun, "wait",
Builtin::kAtomicsConditionWait, 2, false);
SimpleInstallFunction(isolate(), condition_fun, "notify",
Builtin::kAtomicsConditionNotify, 2, false);
SimpleInstallFunction(isolate(), condition_fun, "isCondition",
Builtin::kAtomicsConditionIsCondition, 1, true);
}
}
void Genesis::InitializeGlobal_harmony_array_grouping() {
if (!v8_flags.harmony_array_grouping) return;
Handle<JSFunction> array_function(native_context()->array_function(),
isolate());
Handle<JSObject> array_prototype(
JSObject::cast(array_function->instance_prototype()), isolate());
SimpleInstallFunction(isolate_, array_prototype, "group",
Builtin::kArrayPrototypeGroup, 1, false);
SimpleInstallFunction(isolate_, array_prototype, "groupToMap",
Builtin::kArrayPrototypeGroupToMap, 1, false);
Handle<JSObject> unscopables = Handle<JSObject>::cast(
JSObject::GetProperty(isolate(), array_prototype,
isolate()->factory()->unscopables_symbol())
.ToHandleChecked());
InstallTrueValuedProperty(isolate_, unscopables, "group");
InstallTrueValuedProperty(isolate_, unscopables, "groupToMap");
}
void Genesis::InitializeGlobal_sharedarraybuffer() {
if (v8_flags.enable_sharedarraybuffer_per_context) {
return;
}
Handle<JSGlobalObject> global(native_context()->global_object(), isolate());
JSObject::AddProperty(isolate_, global, "SharedArrayBuffer",
isolate()->shared_array_buffer_fun(), DONT_ENUM);
}
void Genesis::InitializeGlobal_harmony_weak_refs_with_cleanup_some() {
if (!v8_flags.harmony_weak_refs_with_cleanup_some) return;
Handle<JSFunction> finalization_registry_fun =
isolate()->js_finalization_registry_fun();
Handle<JSObject> finalization_registry_prototype(
JSObject::cast(finalization_registry_fun->instance_prototype()),
isolate());
JSObject::AddProperty(isolate(), finalization_registry_prototype,
factory()->InternalizeUtf8String("cleanupSome"),
isolate()->finalization_registry_cleanup_some(),
DONT_ENUM);
}
void Genesis::InitializeGlobal_harmony_array_from_async() {
if (!v8_flags.harmony_array_from_async) return;
}
void Genesis::InitializeGlobal_regexp_linear_flag() {
if (!v8_flags.enable_experimental_regexp_engine) return;
Handle<JSFunction> regexp_fun(native_context()->regexp_function(), isolate());
Handle<JSObject> regexp_prototype(
JSObject::cast(regexp_fun->instance_prototype()), isolate());
SimpleInstallGetter(isolate(), regexp_prototype,
isolate()->factory()->linear_string(),
Builtin::kRegExpPrototypeLinearGetter, true);
// Store regexp prototype map again after change.
native_context()->set_regexp_prototype_map(regexp_prototype->map());
}
void Genesis::InitializeGlobal_harmony_rab_gsab() {
if (!v8_flags.harmony_rab_gsab) return;
Handle<JSObject> array_buffer_prototype(
JSObject::cast(native_context()->array_buffer_fun().instance_prototype()),
isolate());
SimpleInstallGetter(isolate(), array_buffer_prototype,
factory()->max_byte_length_string(),
Builtin::kArrayBufferPrototypeGetMaxByteLength, false);
SimpleInstallGetter(isolate(), array_buffer_prototype,
factory()->resizable_string(),
Builtin::kArrayBufferPrototypeGetResizable, false);
SimpleInstallFunction(isolate(), array_buffer_prototype, "resize",
Builtin::kArrayBufferPrototypeResize, 1, true);
if (v8_flags.harmony_rab_gsab_transfer) {
SimpleInstallFunction(isolate(), array_buffer_prototype, "transfer",
Builtin::kArrayBufferPrototypeTransfer, 0, false);
SimpleInstallFunction(
isolate(), array_buffer_prototype, "transferToFixedLength",
Builtin::kArrayBufferPrototypeTransferToFixedLength, 0, false);
SimpleInstallGetter(isolate(), array_buffer_prototype,
factory()->detached_string(),
Builtin::kArrayBufferPrototypeGetDetached, false);
}
Handle<JSObject> shared_array_buffer_prototype(
JSObject::cast(
native_context()->shared_array_buffer_fun().instance_prototype()),
isolate());
SimpleInstallGetter(isolate(), shared_array_buffer_prototype,
factory()->max_byte_length_string(),
Builtin::kSharedArrayBufferPrototypeGetMaxByteLength,
false);
SimpleInstallGetter(isolate(), shared_array_buffer_prototype,
factory()->growable_string(),
Builtin::kSharedArrayBufferPrototypeGetGrowable, false);
SimpleInstallFunction(isolate(), shared_array_buffer_prototype, "grow",
Builtin::kSharedArrayBufferPrototypeGrow, 1, true);
}
void Genesis::InitializeGlobal_harmony_string_is_well_formed() {
if (!v8_flags.harmony_string_is_well_formed) return;
Handle<JSFunction> string_function(native_context()->string_function(),
isolate());
Handle<JSObject> string_prototype(
JSObject::cast(string_function->initial_map().prototype()), isolate());
SimpleInstallFunction(isolate(), string_prototype, "isWellFormed",
Builtin::kStringPrototypeIsWellFormed, 0, false);
SimpleInstallFunction(isolate(), string_prototype, "toWellFormed",
Builtin::kStringPrototypeToWellFormed, 0, false);
}
void Genesis::InitializeGlobal_harmony_temporal() {
if (!v8_flags.harmony_temporal) return;
// -- T e m p o r a l
// #sec-temporal-objects
Handle<JSObject> temporal =
factory()->NewJSObject(isolate_->object_function(), AllocationType::kOld);
Handle<JSGlobalObject> global(native_context()->global_object(), isolate());
JSObject::AddProperty(isolate_, global, "Temporal", temporal, DONT_ENUM);
// The initial value of the @@toStringTag property is the string value
// *"Temporal"*.
// https://github.com/tc39/proposal-temporal/issues/1539
InstallToStringTag(isolate_, temporal, "Temporal");
{ // -- N o w
// #sec-temporal-now-object
Handle<JSObject> now = factory()->NewJSObject(isolate_->object_function(),
AllocationType::kOld);
JSObject::AddProperty(isolate_, temporal, "Now", now, DONT_ENUM);
InstallToStringTag(isolate_, now, "Temporal.Now");
// Note: There are NO Temporal.Now.plainTime
// See https://github.com/tc39/proposal-temporal/issues/1540
#define NOW_LIST(V) \
V(timeZone, TimeZone, 0) \
V(instant, Instant, 0) \
V(plainDateTime, PlainDateTime, 1) \
V(plainDateTimeISO, PlainDateTimeISO, 0) \
V(zonedDateTime, ZonedDateTime, 1) \
V(zonedDateTimeISO, ZonedDateTimeISO, 0) \
V(plainDate, PlainDate, 1) \
V(plainDateISO, PlainDateISO, 0) \
V(plainTimeISO, PlainTimeISO, 0)
#define INSTALL_NOW_FUNC(p, N, n) \
SimpleInstallFunction(isolate(), now, #p, Builtin::kTemporalNow##N, n, false);
NOW_LIST(INSTALL_NOW_FUNC)
#undef INSTALL_NOW_FUNC
#undef NOW_LIST
}
#define INSTALL_TEMPORAL_CTOR_AND_PROTOTYPE(N, U, NUM_ARGS) \
Handle<JSFunction> obj_func = InstallFunction( \
isolate(), temporal, #N, JS_TEMPORAL_##U##_TYPE, \
JSTemporal##N::kHeaderSize, 0, factory()->the_hole_value(), \
Builtin::kTemporal##N##Constructor); \
obj_func->shared().set_length(NUM_ARGS); \
obj_func->shared().DontAdaptArguments(); \
InstallWithIntrinsicDefaultProto(isolate_, obj_func, \
Context::JS_TEMPORAL_##U##_FUNCTION_INDEX); \
Handle<JSObject> prototype(JSObject::cast(obj_func->instance_prototype()), \
isolate()); \
InstallToStringTag(isolate(), prototype, "Temporal." #N);
#define INSTALL_TEMPORAL_FUNC(T, name, N, arg) \
SimpleInstallFunction(isolate(), obj_func, #name, Builtin::kTemporal##T##N, \
arg, false);
{ // -- P l a i n D a t e
// #sec-temporal-plaindate-objects
// #sec-temporal.plaindate
INSTALL_TEMPORAL_CTOR_AND_PROTOTYPE(PlainDate, PLAIN_DATE, 3)
INSTALL_TEMPORAL_FUNC(PlainDate, from, From, 1)
INSTALL_TEMPORAL_FUNC(PlainDate, compare, Compare, 2)
#ifdef V8_INTL_SUPPORT
#define PLAIN_DATE_GETTER_LIST_INTL(V) \
V(era, Era) \
V(eraYear, EraYear)
#else
#define PLAIN_DATE_GETTER_LIST_INTL(V)
#endif // V8_INTL_SUPPORT
#define PLAIN_DATE_GETTER_LIST(V) \
PLAIN_DATE_GETTER_LIST_INTL(V) \
V(calendar, Calendar) \
V(year, Year) \
V(month, Month) \
V(monthCode, MonthCode) \
V(day, Day) \
V(dayOfWeek, DayOfWeek) \
V(dayOfYear, DayOfYear) \
V(weekOfYear, WeekOfYear) \
V(daysInWeek, DaysInWeek) \
V(daysInMonth, DaysInMonth) \
V(daysInYear, DaysInYear) \
V(monthsInYear, MonthsInYear) \
V(inLeapYear, InLeapYear)
#define INSTALL_PLAIN_DATE_GETTER_FUNC(p, N) \
SimpleInstallGetter(isolate(), prototype, isolate_->factory()->p##_string(), \
Builtin::kTemporalPlainDatePrototype##N, true);
PLAIN_DATE_GETTER_LIST(INSTALL_PLAIN_DATE_GETTER_FUNC)
#undef PLAIN_DATE_GETTER_LIST
#undef PLAIN_DATE_GETTER_LIST_INTL
#undef INSTALL_PLAIN_DATE_GETTER_FUNC
#define PLAIN_DATE_FUNC_LIST(V) \
V(toPlainYearMonth, ToPlainYearMonth, 0) \
V(toPlainMonthDay, ToPlainMonthDay, 0) \
V(getISOFiels, GetISOFields, 0) \
V(add, Add, 1) \
V(subtract, Subtract, 1) \
V(with, With, 1) \
V(withCalendar, WithCalendar, 1) \
V(until, Until, 1) \
V(since, Since, 1) \
V(equals, Equals, 1) \
V(getISOFields, GetISOFields, 0) \
V(toLocaleString, ToLocaleString, 0) \
V(toPlainDateTime, ToPlainDateTime, 0) \
V(toZonedDateTime, ToZonedDateTime, 1) \
V(toString, ToString, 0) \
V(toJSON, ToJSON, 0) \
V(valueOf, ValueOf, 0)
#define INSTALL_PLAIN_DATE_FUNC(p, N, min) \
SimpleInstallFunction(isolate(), prototype, #p, \
Builtin::kTemporalPlainDatePrototype##N, min, false);
PLAIN_DATE_FUNC_LIST(INSTALL_PLAIN_DATE_FUNC)
#undef PLAIN_DATE_FUNC_LIST
#undef INSTALL_PLAIN_DATE_FUNC
}
{ // -- P l a i n T i m e
// #sec-temporal-plaintime-objects
// #sec-temporal.plaintime
INSTALL_TEMPORAL_CTOR_AND_PROTOTYPE(PlainTime, PLAIN_TIME, 0)
INSTALL_TEMPORAL_FUNC(PlainTime, from, From, 1)
INSTALL_TEMPORAL_FUNC(PlainTime, compare, Compare, 2)
#define PLAIN_TIME_GETTER_LIST(V) \
V(calendar, Calendar) \
V(hour, Hour) \
V(minute, Minute) \
V(second, Second) \
V(millisecond, Millisecond) \
V(microsecond, Microsecond) \
V(nanosecond, Nanosecond)
#define INSTALL_PLAIN_TIME_GETTER_FUNC(p, N) \
SimpleInstallGetter(isolate(), prototype, isolate_->factory()->p##_string(), \
Builtin::kTemporalPlainTimePrototype##N, true);
PLAIN_TIME_GETTER_LIST(INSTALL_PLAIN_TIME_GETTER_FUNC)
#undef PLAIN_TIME_GETTER_LIST
#undef INSTALL_PLAIN_TIME_GETTER_FUNC
#define PLAIN_TIME_FUNC_LIST(V) \
V(add, Add, 1) \
V(subtract, Subtract, 1) \
V(with, With, 1) \
V(until, Until, 1) \
V(since, Since, 1) \
V(round, Round, 1) \
V(equals, Equals, 1) \
V(toPlainDateTime, ToPlainDateTime, 1) \
V(toZonedDateTime, ToZonedDateTime, 1) \
V(getISOFields, GetISOFields, 0) \
V(toLocaleString, ToLocaleString, 0) \
V(toString, ToString, 0) \
V(toJSON, ToJSON, 0) \
V(valueOf, ValueOf, 0)
#define INSTALL_PLAIN_TIME_FUNC(p, N, min) \
SimpleInstallFunction(isolate(), prototype, #p, \
Builtin::kTemporalPlainTimePrototype##N, min, false);
PLAIN_TIME_FUNC_LIST(INSTALL_PLAIN_TIME_FUNC)
#undef PLAIN_TIME_FUNC_LIST
#undef INSTALL_PLAIN_TIME_FUNC
}
{ // -- P l a i n D a t e T i m e
// #sec-temporal-plaindatetime-objects
// #sec-temporal.plaindatetime
INSTALL_TEMPORAL_CTOR_AND_PROTOTYPE(PlainDateTime, PLAIN_DATE_TIME, 3)
INSTALL_TEMPORAL_FUNC(PlainDateTime, from, From, 1)
INSTALL_TEMPORAL_FUNC(PlainDateTime, compare, Compare, 2)
#ifdef V8_INTL_SUPPORT
#define PLAIN_DATE_TIME_GETTER_LIST_INTL(V) \
V(era, Era) \
V(eraYear, EraYear)
#else
#define PLAIN_DATE_TIME_GETTER_LIST_INTL(V)
#endif // V8_INTL_SUPPORT
#define PLAIN_DATE_TIME_GETTER_LIST(V) \
PLAIN_DATE_TIME_GETTER_LIST_INTL(V) \
V(calendar, Calendar) \
V(year, Year) \
V(month, Month) \
V(monthCode, MonthCode) \
V(day, Day) \
V(hour, Hour) \
V(minute, Minute) \
V(second, Second) \
V(millisecond, Millisecond) \
V(microsecond, Microsecond) \
V(nanosecond, Nanosecond) \
V(dayOfWeek, DayOfWeek) \
V(dayOfYear, DayOfYear) \
V(weekOfYear, WeekOfYear) \
V(daysInWeek, DaysInWeek) \
V(daysInMonth, DaysInMonth) \
V(daysInYear, DaysInYear) \
V(monthsInYear, MonthsInYear) \
V(inLeapYear, InLeapYear)
#define INSTALL_PLAIN_DATE_TIME_GETTER_FUNC(p, N) \
SimpleInstallGetter(isolate(), prototype, isolate_->factory()->p##_string(), \
Builtin::kTemporalPlainDateTimePrototype##N, true);
PLAIN_DATE_TIME_GETTER_LIST(INSTALL_PLAIN_DATE_TIME_GETTER_FUNC)
#undef PLAIN_DATE_TIME_GETTER_LIST
#undef PLAIN_DATE_TIME_GETTER_LIST_INTL
#undef INSTALL_PLAIN_DATE_TIME_GETTER_FUNC
#define PLAIN_DATE_TIME_FUNC_LIST(V) \
V(with, With, 1) \
V(withPlainTime, WithPlainTime, 0) \
V(withPlainDate, WithPlainDate, 1) \
V(withCalendar, WithCalendar, 1) \
V(add, Add, 1) \
V(subtract, Subtract, 1) \
V(until, Until, 1) \
V(since, Since, 1) \
V(round, Round, 1) \
V(equals, Equals, 1) \
V(toLocaleString, ToLocaleString, 0) \
V(toJSON, ToJSON, 0) \
V(toString, ToString, 0) \
V(valueOf, ValueOf, 0) \
V(toZonedDateTime, ToZonedDateTime, 1) \
V(toPlainDate, ToPlainDate, 0) \
V(toPlainYearMonth, ToPlainYearMonth, 0) \
V(toPlainMonthDay, ToPlainMonthDay, 0) \
V(toPlainTime, ToPlainTime, 0) \
V(getISOFields, GetISOFields, 0)
#define INSTALL_PLAIN_DATE_TIME_FUNC(p, N, min) \
SimpleInstallFunction(isolate(), prototype, #p, \
Builtin::kTemporalPlainDateTimePrototype##N, min, \
false);
PLAIN_DATE_TIME_FUNC_LIST(INSTALL_PLAIN_DATE_TIME_FUNC)
#undef PLAIN_DATE_TIME_FUNC_LIST
#undef INSTALL_PLAIN_DATE_TIME_FUNC
}
{ // -- Z o n e d D a t e T i m e
// #sec-temporal-zoneddatetime-objects
// #sec-temporal.zoneddatetime
INSTALL_TEMPORAL_CTOR_AND_PROTOTYPE(ZonedDateTime, ZONED_DATE_TIME, 2)
INSTALL_TEMPORAL_FUNC(ZonedDateTime, from, From, 1)
INSTALL_TEMPORAL_FUNC(ZonedDateTime, compare, Compare, 2)
#ifdef V8_INTL_SUPPORT
#define ZONED_DATE_TIME_GETTER_LIST_INTL(V) \
V(era, Era) \
V(eraYear, EraYear)
#else
#define ZONED_DATE_TIME_GETTER_LIST_INTL(V)
#endif // V8_INTL_SUPPORT
#define ZONED_DATE_TIME_GETTER_LIST(V) \
ZONED_DATE_TIME_GETTER_LIST_INTL(V) \
V(calendar, Calendar) \
V(timeZone, TimeZone) \
V(year, Year) \
V(month, Month) \
V(monthCode, MonthCode) \
V(day, Day) \
V(hour, Hour) \
V(minute, Minute) \
V(second, Second) \
V(millisecond, Millisecond) \
V(microsecond, Microsecond) \
V(nanosecond, Nanosecond) \
V(epochSeconds, EpochSeconds) \
V(epochMilliseconds, EpochMilliseconds) \
V(epochMicroseconds, EpochMicroseconds) \
V(epochNanoseconds, EpochNanoseconds) \
V(dayOfWeek, DayOfWeek) \
V(dayOfYear, DayOfYear) \
V(weekOfYear, WeekOfYear) \
V(hoursInDay, HoursInDay) \
V(daysInWeek, DaysInWeek) \
V(daysInMonth, DaysInMonth) \
V(daysInYear, DaysInYear) \
V(monthsInYear, MonthsInYear) \
V(inLeapYear, InLeapYear) \
V(offsetNanoseconds, OffsetNanoseconds) \
V(offset, Offset)
#define INSTALL_ZONED_DATE_TIME_GETTER_FUNC(p, N) \
SimpleInstallGetter(isolate(), prototype, isolate_->factory()->p##_string(), \
Builtin::kTemporalZonedDateTimePrototype##N, true);
ZONED_DATE_TIME_GETTER_LIST(INSTALL_ZONED_DATE_TIME_GETTER_FUNC)
#undef ZONED_DATE_TIME_GETTER_LIST
#undef ZONED_DATE_TIME_GETTER_LIST_INTL
#undef INSTALL_ZONED_DATE_TIME_GETTER_FUNC
#define ZONED_DATE_TIME_FUNC_LIST(V) \
V(with, With, 1) \
V(withPlainTime, WithPlainTime, 0) \
V(withPlainDate, WithPlainDate, 1) \
V(withTimeZone, WithTimeZone, 1) \
V(withCalendar, WithCalendar, 1) \
V(add, Add, 1) \
V(subtract, Subtract, 1) \
V(until, Until, 1) \
V(since, Since, 1) \
V(round, Round, 1) \
V(equals, Equals, 1) \
V(toLocaleString, ToLocaleString, 0) \
V(toString, ToString, 0) \
V(toJSON, ToJSON, 0) \
V(valueOf, ValueOf, 0) \
V(startOfDay, StartOfDay, 0) \
V(toInstant, ToInstant, 0) \
V(toPlainDate, ToPlainDate, 0) \
V(toPlainTime, ToPlainTime, 0) \
V(toPlainDateTime, ToPlainDateTime, 0) \
V(toPlainYearMonth, ToPlainYearMonth, 0) \
V(toPlainMonthDay, ToPlainMonthDay, 0) \
V(getISOFields, GetISOFields, 0)
#define INSTALL_ZONED_DATE_TIME_FUNC(p, N, min) \
SimpleInstallFunction(isolate(), prototype, #p, \
Builtin::kTemporalZonedDateTimePrototype##N, min, \
false);
ZONED_DATE_TIME_FUNC_LIST(INSTALL_ZONED_DATE_TIME_FUNC)
#undef ZONED_DATE_TIME_FUNC_LIST
#undef INSTALL_ZONED_DATE_TIME_FUNC
}
{ // -- D u r a t i o n
// #sec-temporal-duration-objects
// #sec-temporal.duration
INSTALL_TEMPORAL_CTOR_AND_PROTOTYPE(Duration, DURATION, 0)
INSTALL_TEMPORAL_FUNC(Duration, from, From, 1)
INSTALL_TEMPORAL_FUNC(Duration, compare, Compare, 2)
#define DURATION_GETTER_LIST(V) \
V(years, Years) \
V(months, Months) \
V(weeks, Weeks) \
V(days, Days) \
V(hours, Hours) \
V(minutes, Minutes) \
V(seconds, Seconds) \
V(milliseconds, Milliseconds) \
V(microseconds, Microseconds) \
V(nanoseconds, Nanoseconds) \
V(sign, Sign) \
V(blank, Blank)
#define INSTALL_DURATION_GETTER_FUNC(p, N) \
SimpleInstallGetter(isolate(), prototype, isolate_->factory()->p##_string(), \
Builtin::kTemporalDurationPrototype##N, true);
DURATION_GETTER_LIST(INSTALL_DURATION_GETTER_FUNC)
#undef DURATION_GETTER_LIST
#undef INSTALL_DURATION_GETTER_FUNC
#define DURATION_FUNC_LIST(V) \
V(with, With, 1) \
V(negated, Negated, 0) \
V(abs, Abs, 0) \
V(add, Add, 1) \
V(subtract, Subtract, 1) \
V(round, Round, 1) \
V(total, Total, 1) \
V(toLocaleString, ToLocaleString, 0) \
V(toString, ToString, 0) \
V(toJSON, ToJSON, 0) \
V(valueOf, ValueOf, 0)
#define INSTALL_DURATION_FUNC(p, N, min) \
SimpleInstallFunction(isolate(), prototype, #p, \
Builtin::kTemporalDurationPrototype##N, min, false);
DURATION_FUNC_LIST(INSTALL_DURATION_FUNC)
#undef DURATION_FUNC_LIST
#undef INSTALL_DURATION_FUNC
}
{ // -- I n s t a n t
// #sec-temporal-instant-objects
// #sec-temporal.instant
INSTALL_TEMPORAL_CTOR_AND_PROTOTYPE(Instant, INSTANT, 1)
INSTALL_TEMPORAL_FUNC(Instant, from, From, 1)
INSTALL_TEMPORAL_FUNC(Instant, compare, Compare, 2)
INSTALL_TEMPORAL_FUNC(Instant, fromEpochSeconds, FromEpochSeconds, 1)
INSTALL_TEMPORAL_FUNC(Instant, fromEpochMilliseconds, FromEpochMilliseconds,
1)
INSTALL_TEMPORAL_FUNC(Instant, fromEpochMicroseconds, FromEpochMicroseconds,
1)
INSTALL_TEMPORAL_FUNC(Instant, fromEpochNanoseconds, FromEpochNanoseconds,
1)
#define INSTANT_GETTER_LIST(V) \
V(epochSeconds, EpochSeconds) \
V(epochMilliseconds, EpochMilliseconds) \
V(epochMicroseconds, EpochMicroseconds) \
V(epochNanoseconds, EpochNanoseconds)
#define INSTALL_INSTANT_GETTER_FUNC(p, N) \
SimpleInstallGetter(isolate(), prototype, isolate_->factory()->p##_string(), \
Builtin::kTemporalInstantPrototype##N, true);
INSTANT_GETTER_LIST(INSTALL_INSTANT_GETTER_FUNC)
#undef INSTANT_GETTER_LIST
#undef INSTALL_INSTANT_GETTER_FUNC
#define INSTANT_FUNC_LIST(V) \
V(add, Add, 1) \
V(subtract, Subtract, 1) \
V(until, Until, 1) \
V(since, Since, 1) \
V(round, Round, 1) \
V(equals, Equals, 1) \
V(toLocaleString, ToLocaleString, 0) \
V(toString, ToString, 0) \
V(toJSON, ToJSON, 0) \
V(valueOf, ValueOf, 0) \
V(toZonedDateTime, ToZonedDateTime, 1) \
V(toZonedDateTimeISO, ToZonedDateTimeISO, 1)
#define INSTALL_INSTANT_FUNC(p, N, min) \
SimpleInstallFunction(isolate(), prototype, #p, \
Builtin::kTemporalInstantPrototype##N, min, false);
INSTANT_FUNC_LIST(INSTALL_INSTANT_FUNC)
#undef INSTANT_FUNC_LIST
#undef INSTALL_INSTANT_FUNC
}
{ // -- P l a i n Y e a r M o n t h
// #sec-temporal-plainyearmonth-objects
// #sec-temporal.plainyearmonth
INSTALL_TEMPORAL_CTOR_AND_PROTOTYPE(PlainYearMonth, PLAIN_YEAR_MONTH, 2)
INSTALL_TEMPORAL_FUNC(PlainYearMonth, from, From, 1)
INSTALL_TEMPORAL_FUNC(PlainYearMonth, compare, Compare, 2)
#ifdef V8_INTL_SUPPORT
#define PLAIN_YEAR_MONTH_GETTER_LIST_INTL(V) \
V(era, Era) \
V(eraYear, EraYear)
#else
#define PLAIN_YEAR_MONTH_GETTER_LIST_INTL(V)
#endif // V8_INTL_SUPPORT
#define PLAIN_YEAR_MONTH_GETTER_LIST(V) \
PLAIN_YEAR_MONTH_GETTER_LIST_INTL(V) \
V(calendar, Calendar) \
V(year, Year) \
V(month, Month) \
V(monthCode, MonthCode) \
V(daysInYear, DaysInYear) \
V(daysInMonth, DaysInMonth) \
V(monthsInYear, MonthsInYear) \
V(inLeapYear, InLeapYear)
#define INSTALL_PLAIN_YEAR_MONTH_GETTER_FUNC(p, N) \
SimpleInstallGetter(isolate(), prototype, isolate_->factory()->p##_string(), \
Builtin::kTemporalPlainYearMonthPrototype##N, true);
PLAIN_YEAR_MONTH_GETTER_LIST(INSTALL_PLAIN_YEAR_MONTH_GETTER_FUNC)
#undef PLAIN_YEAR_MONTH_GETTER_LIST
#undef PLAIN_YEAR_MONTH_GETTER_LIST_INTL
#undef INSTALL_PLAIN_YEAR_MONTH_GETTER_FUNC
#define PLAIN_YEAR_MONTH_FUNC_LIST(V) \
V(with, With, 1) \
V(add, Add, 1) \
V(subtract, Subtract, 1) \
V(until, Until, 1) \
V(since, Since, 1) \
V(equals, Equals, 1) \
V(toLocaleString, ToLocaleString, 0) \
V(toString, ToString, 0) \
V(toJSON, ToJSON, 0) \
V(valueOf, ValueOf, 0) \
V(toPlainDate, ToPlainDate, 1) \
V(getISOFields, GetISOFields, 0)
#define INSTALL_PLAIN_YEAR_MONTH_FUNC(p, N, min) \
SimpleInstallFunction(isolate(), prototype, #p, \
Builtin::kTemporalPlainYearMonthPrototype##N, min, \
false);
PLAIN_YEAR_MONTH_FUNC_LIST(INSTALL_PLAIN_YEAR_MONTH_FUNC)
#undef PLAIN_YEAR_MONTH_FUNC_LIST
#undef INSTALL_PLAIN_YEAR_MONTH_FUNC
}
{ // -- P l a i n M o n t h D a y
// #sec-temporal-plainmonthday-objects
// #sec-temporal.plainmonthday
INSTALL_TEMPORAL_CTOR_AND_PROTOTYPE(PlainMonthDay, PLAIN_MONTH_DAY, 2)
INSTALL_TEMPORAL_FUNC(PlainMonthDay, from, From, 1)
// Notice there are no Temporal.PlainMonthDay.compare in the spec.
#define PLAIN_MONTH_DAY_GETTER_LIST(V) \
V(calendar, Calendar) \
V(monthCode, MonthCode) \
V(day, Day)
#define INSTALL_PLAIN_MONTH_DAY_GETTER_FUNC(p, N) \
SimpleInstallGetter(isolate(), prototype, isolate_->factory()->p##_string(), \
Builtin::kTemporalPlainMonthDayPrototype##N, true);
PLAIN_MONTH_DAY_GETTER_LIST(INSTALL_PLAIN_MONTH_DAY_GETTER_FUNC)
#undef PLAIN_MONTH_DAY_GETTER_LIST
#undef INSTALL_PLAIN_MONTH_DAY_GETTER_FUNC
#define PLAIN_MONTH_DAY_FUNC_LIST(V) \
V(with, With, 1) \
V(equals, Equals, 1) \
V(toLocaleString, ToLocaleString, 0) \
V(toString, ToString, 0) \
V(toJSON, ToJSON, 0) \
V(valueOf, ValueOf, 0) \
V(toPlainDate, ToPlainDate, 1) \
V(getISOFields, GetISOFields, 0)
#define INSTALL_PLAIN_MONTH_DAY_FUNC(p, N, min) \
SimpleInstallFunction(isolate(), prototype, #p, \
Builtin::kTemporalPlainMonthDayPrototype##N, min, \
false);
PLAIN_MONTH_DAY_FUNC_LIST(INSTALL_PLAIN_MONTH_DAY_FUNC)
#undef PLAIN_MONTH_DAY_FUNC_LIST
#undef INSTALL_PLAIN_MONTH_DAY_FUNC
}
{ // -- T i m e Z o n e
// #sec-temporal-timezone-objects
// #sec-temporal.timezone
INSTALL_TEMPORAL_CTOR_AND_PROTOTYPE(TimeZone, TIME_ZONE, 1)
INSTALL_TEMPORAL_FUNC(TimeZone, from, From, 1)
// #sec-get-temporal.timezone.prototype.id
SimpleInstallGetter(isolate(), prototype, factory()->id_string(),
Builtin::kTemporalTimeZonePrototypeId, true);
#define TIME_ZONE_FUNC_LIST(V) \
V(getOffsetNanosecondsFor, GetOffsetNanosecondsFor, 1) \
V(getOffsetStringFor, GetOffsetStringFor, 1) \
V(getPlainDateTimeFor, GetPlainDateTimeFor, 1) \
V(getInstantFor, GetInstantFor, 1) \
V(getPossibleInstantsFor, GetPossibleInstantsFor, 1) \
V(getNextTransition, GetNextTransition, 1) \
V(getPreviousTransition, GetPreviousTransition, 1) \
V(toString, ToString, 0) \
V(toJSON, ToJSON, 0)
#define INSTALL_TIME_ZONE_FUNC(p, N, min) \
SimpleInstallFunction(isolate(), prototype, #p, \
Builtin::kTemporalTimeZonePrototype##N, min, false);
TIME_ZONE_FUNC_LIST(INSTALL_TIME_ZONE_FUNC)
#undef TIME_ZONE_FUNC_LIST
#undef INSTALL_TIME_ZONE_FUNC
}
{ // -- C a l e n d a r
// #sec-temporal-calendar-objects
// #sec-temporal.calendar
INSTALL_TEMPORAL_CTOR_AND_PROTOTYPE(Calendar, CALENDAR, 1)
INSTALL_TEMPORAL_FUNC(Calendar, from, From, 1)
// #sec-get-temporal.calendar.prototype.id
SimpleInstallGetter(isolate(), prototype, factory()->id_string(),
Builtin::kTemporalCalendarPrototypeId, true);
#ifdef V8_INTL_SUPPORT
#define CALENDAR_FUNC_LIST_INTL(V) \
V(era, Era, 1) \
V(eraYear, EraYear, 1)
#else
#define CALENDAR_FUNC_LIST_INTL(V)
#endif // V8_INTL_SUPPORT
#define CALENDAR_FUNC_LIST(V) \
CALENDAR_FUNC_LIST_INTL(V) \
V(dateFromFields, DateFromFields, 1) \
V(yearMonthFromFields, YearMonthFromFields, 1) \
V(monthDayFromFields, MonthDayFromFields, 1) \
V(dateAdd, DateAdd, 2) \
V(dateUntil, DateUntil, 2) \
V(year, Year, 1) \
V(month, Month, 1) \
V(monthCode, MonthCode, 1) \
V(day, Day, 1) \
V(dayOfWeek, DayOfWeek, 1) \
V(dayOfYear, DayOfYear, 1) \
V(weekOfYear, WeekOfYear, 1) \
V(daysInWeek, DaysInWeek, 1) \
V(daysInMonth, DaysInMonth, 1) \
V(daysInYear, DaysInYear, 1) \
V(monthsInYear, MonthsInYear, 1) \
V(inLeapYear, InLeapYear, 1) \
V(fields, Fields, 1) \
V(mergeFields, MergeFields, 2) \
V(toString, ToString, 0) \
V(toJSON, ToJSON, 0)
#define INSTALL_CALENDAR_FUNC(p, N, min) \
SimpleInstallFunction(isolate(), prototype, #p, \
Builtin::kTemporalCalendarPrototype##N, min, false);
CALENDAR_FUNC_LIST(INSTALL_CALENDAR_FUNC)
#undef CALENDAR_FUNC_LIST
#undef CALENDAR_FUNC_LIST_INTL
#undef INSTALL_CALENDAE_FUNC
}
#undef INSTALL_TEMPORAL_CTOR_AND_PROTOTYPE
#undef INSTALL_TEMPORAL_FUNC
{ // -- D a t e
// #sec-date.prototype.totemporalinstant
Handle<JSFunction> date_func(native_context()->date_function(), isolate());
// Setup %DatePrototype%.
Handle<JSObject> date_prototype(
JSObject::cast(date_func->instance_prototype()), isolate());
// Install the Date.prototype.toTemporalInstant().
SimpleInstallFunction(isolate_, date_prototype, "toTemporalInstant",
Builtin::kDatePrototypeToTemporalInstant, 0, false);
}
// The StringListFromIterable functions is created but not
// exposed, as it is used internally by CalendarFields.
{
Handle<JSFunction> func = SimpleCreateFunction(
isolate_,
factory()->InternalizeUtf8String("StringFixedArrayFromIterable"),
Builtin::kStringFixedArrayFromIterable, 1, false);
native_context()->set_string_fixed_array_from_iterable(*func);
}
// The TemporalInsantFixedArrayFromIterable functions is created but not
// exposed, as it is used internally by GetPossibleInstantsFor.
{
Handle<JSFunction> func = SimpleCreateFunction(
isolate_,
factory()->InternalizeUtf8String(
"TemporalInstantFixedArrayFromIterable"),
Builtin::kTemporalInstantFixedArrayFromIterable, 1, false);
native_context()->set_temporal_instant_fixed_array_from_iterable(*func);
}
}
#ifdef V8_INTL_SUPPORT
void Genesis::InitializeGlobal_harmony_intl_number_format_v3() {
if (!v8_flags.harmony_intl_number_format_v3) return;
{
Handle<JSFunction> number_format_constructor =
isolate()->intl_number_format_function();
Handle<JSObject> prototype(
JSObject::cast(number_format_constructor->prototype()), isolate());
SimpleInstallFunction(isolate(), prototype, "formatRange",
Builtin::kNumberFormatPrototypeFormatRange, 2, false);
SimpleInstallFunction(isolate(), prototype, "formatRangeToParts",
Builtin::kNumberFormatPrototypeFormatRangeToParts, 2,
false);
}
{
Handle<JSFunction> plural_rules_constructor =
isolate()->intl_plural_rules_function();
Handle<JSObject> prototype(
JSObject::cast(plural_rules_constructor->prototype()), isolate());
SimpleInstallFunction(isolate(), prototype, "selectRange",
Builtin::kPluralRulesPrototypeSelectRange, 2, false);
}
}
#endif // V8_INTL_SUPPORT
#ifdef V8_INTL_SUPPORT
void Genesis::InitializeGlobal_harmony_intl_locale_info_func() {
if (!v8_flags.harmony_intl_locale_info_func) return;
Handle<JSObject> prototype(
JSObject::cast(native_context()->intl_locale_function().prototype()),
isolate_);
SimpleInstallFunction(isolate(), prototype, "getCalendars",
Builtin::kLocalePrototypeGetCalendars, 0, false);
SimpleInstallFunction(isolate(), prototype, "getCollations",
Builtin::kLocalePrototypeGetCollations, 0, false);
SimpleInstallFunction(isolate(), prototype, "getHourCycles",
Builtin::kLocalePrototypeGetHourCycles, 0, false);
SimpleInstallFunction(isolate(), prototype, "getNumberingSystems",
Builtin::kLocalePrototypeGetNumberingSystems, 0, false);
SimpleInstallFunction(isolate(), prototype, "getTimeZones",
Builtin::kLocalePrototypeGetTimeZones, 0, false);
SimpleInstallFunction(isolate(), prototype, "getTextInfo",
Builtin::kLocalePrototypeGetTextInfo, 0, false);
SimpleInstallFunction(isolate(), prototype, "getWeekInfo",
Builtin::kLocalePrototypeGetWeekInfo, 0, false);
}
void Genesis::InitializeGlobal_harmony_intl_duration_format() {
if (!v8_flags.harmony_intl_duration_format) return;
Handle<JSObject> intl = Handle<JSObject>::cast(
JSReceiver::GetProperty(
isolate(),
Handle<JSReceiver>(native_context()->global_object(), isolate()),
factory()->InternalizeUtf8String("Intl"))
.ToHandleChecked());
Handle<JSFunction> duration_format_fun = InstallFunction(
isolate(), intl, "DurationFormat", JS_DURATION_FORMAT_TYPE,
JSDurationFormat::kHeaderSize, 0, factory()->the_hole_value(),
Builtin::kDurationFormatConstructor);
duration_format_fun->shared().set_length(0);
duration_format_fun->shared().DontAdaptArguments();
InstallWithIntrinsicDefaultProto(
isolate(), duration_format_fun,
Context::INTL_DURATION_FORMAT_FUNCTION_INDEX);
SimpleInstallFunction(isolate(), duration_format_fun, "supportedLocalesOf",
Builtin::kDurationFormatSupportedLocalesOf, 1, false);
Handle<JSObject> prototype(
JSObject::cast(duration_format_fun->instance_prototype()), isolate());
InstallToStringTag(isolate(), prototype, "Intl.DurationFormat");
SimpleInstallFunction(isolate(), prototype, "resolvedOptions",
Builtin::kDurationFormatPrototypeResolvedOptions, 0,
false);
SimpleInstallFunction(isolate(), prototype, "format",
Builtin::kDurationFormatPrototypeFormat, 1, false);
SimpleInstallFunction(isolate(), prototype, "formatToParts",
Builtin::kDurationFormatPrototypeFormatToParts, 1,
false);
}
#endif // V8_INTL_SUPPORT
Handle<JSFunction> Genesis::CreateArrayBuffer(
Handle<String> name, ArrayBufferKind array_buffer_kind) {
// Create the %ArrayBufferPrototype%
// Setup the {prototype} with the given {name} for @@toStringTag.
Handle<JSObject> prototype = factory()->NewJSObject(
isolate()->object_function(), AllocationType::kOld);
InstallToStringTag(isolate(), prototype, name);
// Allocate the constructor with the given {prototype}.
Handle<JSFunction> array_buffer_fun =
CreateFunction(isolate(), name, JS_ARRAY_BUFFER_TYPE,
JSArrayBuffer::kSizeWithEmbedderFields, 0, prototype,
Builtin::kArrayBufferConstructor);
array_buffer_fun->shared().DontAdaptArguments();
array_buffer_fun->shared().set_length(1);
// Install the "constructor" property on the {prototype}.
JSObject::AddProperty(isolate(), prototype, factory()->constructor_string(),
array_buffer_fun, DONT_ENUM);
switch (array_buffer_kind) {
case ARRAY_BUFFER:
InstallFunctionWithBuiltinId(isolate(), array_buffer_fun, "isView",
Builtin::kArrayBufferIsView, 1, true);
// Install the "byteLength" getter on the {prototype}.
SimpleInstallGetter(isolate(), prototype, factory()->byte_length_string(),
Builtin::kArrayBufferPrototypeGetByteLength, false);
SimpleInstallFunction(isolate(), prototype, "slice",
Builtin::kArrayBufferPrototypeSlice, 2, true);
break;
case SHARED_ARRAY_BUFFER:
// Install the "byteLength" getter on the {prototype}.
SimpleInstallGetter(isolate(), prototype, factory()->byte_length_string(),
Builtin::kSharedArrayBufferPrototypeGetByteLength,
false);
SimpleInstallFunction(isolate(), prototype, "slice",
Builtin::kSharedArrayBufferPrototypeSlice, 2, true);
break;
}
return array_buffer_fun;
}
// TODO(jgruber): Refactor this into some kind of meaningful organization. There
// is likely no reason remaining for these objects to be installed here. For
// example, global object setup done in this function could likely move to
// InitializeGlobal.
bool Genesis::InstallABunchOfRandomThings() {
HandleScope scope(isolate());
auto fast_template_instantiations_cache =
isolate()->factory()->NewFixedArrayWithHoles(
TemplateInfo::kFastTemplateInstantiationsCacheSize);
native_context()->set_fast_template_instantiations_cache(
*fast_template_instantiations_cache);
auto slow_template_instantiations_cache = SimpleNumberDictionary::New(
isolate(), ApiNatives::kInitialFunctionCacheSize);
native_context()->set_slow_template_instantiations_cache(
*slow_template_instantiations_cache);
auto wasm_debug_maps = isolate()->factory()->empty_fixed_array();
native_context()->set_wasm_debug_maps(*wasm_debug_maps);
// Store the map for the %ObjectPrototype% after the natives has been compiled
// and the Object function has been set up.
{
Handle<JSFunction> object_function(native_context()->object_function(),
isolate());
DCHECK(JSObject::cast(object_function->initial_map().prototype())
.HasFastProperties());
native_context()->set_object_function_prototype(
JSObject::cast(object_function->initial_map().prototype()));
native_context()->set_object_function_prototype_map(
HeapObject::cast(object_function->initial_map().prototype()).map());
}
// Store the map for the %StringPrototype% after the natives has been compiled
// and the String function has been set up.
Handle<JSFunction> string_function(native_context()->string_function(),
isolate());
JSObject string_function_prototype =
JSObject::cast(string_function->initial_map().prototype());
DCHECK(string_function_prototype.HasFastProperties());
native_context()->set_string_function_prototype_map(
string_function_prototype.map());
Handle<JSGlobalObject> global_object =
handle(native_context()->global_object(), isolate());
// Install Global.decodeURI.
InstallFunctionWithBuiltinId(isolate(), global_object, "decodeURI",
Builtin::kGlobalDecodeURI, 1, false);
// Install Global.decodeURIComponent.
InstallFunctionWithBuiltinId(isolate(), global_object, "decodeURIComponent",
Builtin::kGlobalDecodeURIComponent, 1, false);
// Install Global.encodeURI.
InstallFunctionWithBuiltinId(isolate(), global_object, "encodeURI",
Builtin::kGlobalEncodeURI, 1, false);
// Install Global.encodeURIComponent.
InstallFunctionWithBuiltinId(isolate(), global_object, "encodeURIComponent",
Builtin::kGlobalEncodeURIComponent, 1, false);
// Install Global.escape.
InstallFunctionWithBuiltinId(isolate(), global_object, "escape",
Builtin::kGlobalEscape, 1, false);
// Install Global.unescape.
InstallFunctionWithBuiltinId(isolate(), global_object, "unescape",
Builtin::kGlobalUnescape, 1, false);
// Install Global.eval.
{
Handle<JSFunction> eval = SimpleInstallFunction(
isolate(), global_object, "eval", Builtin::kGlobalEval, 1, false);
native_context()->set_global_eval_fun(*eval);
}
// Install Global.isFinite
InstallFunctionWithBuiltinId(isolate(), global_object, "isFinite",
Builtin::kGlobalIsFinite, 1, true);
// Install Global.isNaN
InstallFunctionWithBuiltinId(isolate(), global_object, "isNaN",
Builtin::kGlobalIsNaN, 1, true);
// Install Array builtin functions.
{
Handle<JSFunction> array_constructor(native_context()->array_function(),
isolate());
Handle<JSArray> proto(JSArray::cast(array_constructor->prototype()),
isolate());
// Verification of important array prototype properties.
Object length = proto->length();
CHECK(length.IsSmi());
CHECK_EQ(Smi::ToInt(length), 0);
CHECK(proto->HasSmiOrObjectElements());
// This is necessary to enable fast checks for absence of elements
// on Array.prototype and below.
proto->set_elements(ReadOnlyRoots(heap()).empty_fixed_array());
}
// Create a map for accessor property descriptors (a variant of JSObject
// that predefines four properties get, set, configurable and enumerable).
{
// AccessorPropertyDescriptor initial map.
Handle<Map> map =
factory()->NewMap(JS_OBJECT_TYPE, JSAccessorPropertyDescriptor::kSize,
TERMINAL_FAST_ELEMENTS_KIND, 4);
// Create the descriptor array for the property descriptor object.
Map::EnsureDescriptorSlack(isolate(), map, 4);
{ // get
Descriptor d =
Descriptor::DataField(isolate(), factory()->get_string(),
JSAccessorPropertyDescriptor::kGetIndex, NONE,
Representation::Tagged());
map->AppendDescriptor(isolate(), &d);
}
{ // set
Descriptor d =
Descriptor::DataField(isolate(), factory()->set_string(),
JSAccessorPropertyDescriptor::kSetIndex, NONE,
Representation::Tagged());
map->AppendDescriptor(isolate(), &d);
}
{ // enumerable
Descriptor d =
Descriptor::DataField(isolate(), factory()->enumerable_string(),
JSAccessorPropertyDescriptor::kEnumerableIndex,
NONE, Representation::Tagged());
map->AppendDescriptor(isolate(), &d);
}
{ // configurable
Descriptor d = Descriptor::DataField(
isolate(), factory()->configurable_string(),
JSAccessorPropertyDescriptor::kConfigurableIndex, NONE,
Representation::Tagged());
map->AppendDescriptor(isolate(), &d);
}
Map::SetPrototype(isolate(), map, isolate()->initial_object_prototype());
map->SetConstructor(native_context()->object_function());
native_context()->set_accessor_property_descriptor_map(*map);
}
// Create a map for data property descriptors (a variant of JSObject
// that predefines four properties value, writable, configurable and
// enumerable).
{
// DataPropertyDescriptor initial map.
Handle<Map> map =
factory()->NewMap(JS_OBJECT_TYPE, JSDataPropertyDescriptor::kSize,
TERMINAL_FAST_ELEMENTS_KIND, 4);
// Create the descriptor array for the property descriptor object.
Map::EnsureDescriptorSlack(isolate(), map, 4);
{ // value
Descriptor d =
Descriptor::DataField(isolate(), factory()->value_string(),
JSDataPropertyDescriptor::kValueIndex, NONE,
Representation::Tagged());
map->AppendDescriptor(isolate(), &d);
}
{ // writable
Descriptor d =
Descriptor::DataField(isolate(), factory()->writable_string(),
JSDataPropertyDescriptor::kWritableIndex, NONE,
Representation::Tagged());
map->AppendDescriptor(isolate(), &d);
}
{ // enumerable
Descriptor d =
Descriptor::DataField(isolate(), factory()->enumerable_string(),
JSDataPropertyDescriptor::kEnumerableIndex,
NONE, Representation::Tagged());
map->AppendDescriptor(isolate(), &d);
}
{ // configurable
Descriptor d =
Descriptor::DataField(isolate(), factory()->configurable_string(),
JSDataPropertyDescriptor::kConfigurableIndex,
NONE, Representation::Tagged());
map->AppendDescriptor(isolate(), &d);
}
Map::SetPrototype(isolate(), map, isolate()->initial_object_prototype());
map->SetConstructor(native_context()->object_function());
native_context()->set_data_property_descriptor_map(*map);
}
{
// -- TemplateLiteral JSArray Map
Handle<JSFunction> array_function(native_context()->array_function(),
isolate());
Handle<Map> template_map(array_function->initial_map(), isolate_);
template_map = Map::CopyAsElementsKind(isolate_, template_map,
PACKED_ELEMENTS, OMIT_TRANSITION);
DCHECK_GE(TemplateLiteralObject::kHeaderSize,
template_map->instance_size());
template_map->set_instance_size(TemplateLiteralObject::kHeaderSize);
// Temporarily instantiate a full template_literal_object to get the final
// map.
auto template_object =
Handle<JSArray>::cast(factory()->NewJSObjectFromMap(template_map));
{
DisallowGarbageCollection no_gc;
JSArray raw = *template_object;
raw.set_elements(ReadOnlyRoots(isolate()).empty_fixed_array());
raw.set_length(Smi::FromInt(0));
}
// Install a "raw" data property for {raw_object} on {template_object}.
// See ES#sec-gettemplateobject.
PropertyDescriptor raw_desc;
// Use arbrirary object {template_object} as ".raw" value.
raw_desc.set_value(template_object);
raw_desc.set_configurable(false);
raw_desc.set_enumerable(false);
raw_desc.set_writable(false);
JSArray::DefineOwnProperty(isolate(), template_object,
factory()->raw_string(), &raw_desc,
Just(kThrowOnError))
.ToChecked();
// Install private symbol fields for function_literal_id and slot_id.
raw_desc.set_value(handle(Smi::zero(), isolate()));
JSArray::DefineOwnProperty(
isolate(), template_object,
factory()->template_literal_function_literal_id_symbol(), &raw_desc,
Just(kThrowOnError))
.ToChecked();
JSArray::DefineOwnProperty(isolate(), template_object,
factory()->template_literal_slot_id_symbol(),
&raw_desc, Just(kThrowOnError))
.ToChecked();
// Freeze the {template_object} as well.
JSObject::SetIntegrityLevel(isolate(), template_object, FROZEN,
kThrowOnError)
.ToChecked();
{
DisallowGarbageCollection no_gc;
DescriptorArray desc = template_object->map().instance_descriptors();
{
// Verify TemplateLiteralObject::kRawOffset
InternalIndex descriptor_index =
desc.Search(*factory()->raw_string(), desc.number_of_descriptors());
FieldIndex index =
FieldIndex::ForDescriptor(template_object->map(), descriptor_index);
CHECK(index.is_inobject());
CHECK_EQ(index.offset(), TemplateLiteralObject::kRawOffset);
}
{
// Verify TemplateLiteralObject::kFunctionLiteralIdOffset
InternalIndex descriptor_index = desc.Search(
*factory()->template_literal_function_literal_id_symbol(),
desc.number_of_descriptors());
FieldIndex index =
FieldIndex::ForDescriptor(template_object->map(), descriptor_index);
CHECK(index.is_inobject());
CHECK_EQ(index.offset(),
TemplateLiteralObject::kFunctionLiteralIdOffset);
}
{
// Verify TemplateLiteralObject::kSlotIdOffset
InternalIndex descriptor_index =
desc.Search(*factory()->template_literal_slot_id_symbol(),
desc.number_of_descriptors());
FieldIndex index =
FieldIndex::ForDescriptor(template_object->map(), descriptor_index);
CHECK(index.is_inobject());
CHECK_EQ(index.offset(), TemplateLiteralObject::kSlotIdOffset);
}
}
native_context()->set_js_array_template_literal_object_map(
template_object->map());
}
// Create a constructor for RegExp results (a variant of Array that
// predefines the properties index, input, and groups).
{
// JSRegExpResult initial map.
// Add additional slack to the initial map in case regexp_match_indices
// are enabled to account for the additional descriptor.
Handle<Map> initial_map = CreateInitialMapForArraySubclass(
JSRegExpResult::kSize, JSRegExpResult::kInObjectPropertyCount);
// index descriptor.
{
Descriptor d = Descriptor::DataField(isolate(), factory()->index_string(),
JSRegExpResult::kIndexIndex, NONE,
Representation::Tagged());
initial_map->AppendDescriptor(isolate(), &d);
}
// input descriptor.
{
Descriptor d = Descriptor::DataField(isolate(), factory()->input_string(),
JSRegExpResult::kInputIndex, NONE,
Representation::Tagged());
initial_map->AppendDescriptor(isolate(), &d);
}
// groups descriptor.
{
Descriptor d = Descriptor::DataField(
isolate(), factory()->groups_string(), JSRegExpResult::kGroupsIndex,
NONE, Representation::Tagged());
initial_map->AppendDescriptor(isolate(), &d);
}
// Private internal only fields. All of the remaining fields have special
// symbols to prevent their use in Javascript.
{
PropertyAttributes attribs = DONT_ENUM;
// names descriptor.
{
Descriptor d = Descriptor::DataField(
isolate(), factory()->regexp_result_names_symbol(),
JSRegExpResult::kNamesIndex, attribs, Representation::Tagged());
initial_map->AppendDescriptor(isolate(), &d);
}
// regexp_input_index descriptor.
{
Descriptor d = Descriptor::DataField(
isolate(), factory()->regexp_result_regexp_input_symbol(),
JSRegExpResult::kRegExpInputIndex, attribs,
Representation::Tagged());
initial_map->AppendDescriptor(isolate(), &d);
}
// regexp_last_index descriptor.
{
Descriptor d = Descriptor::DataField(
isolate(), factory()->regexp_result_regexp_last_index_symbol(),
JSRegExpResult::kRegExpLastIndex, attribs,
Representation::Tagged());
initial_map->AppendDescriptor(isolate(), &d);
}
}
// Set up the map for RegExp results objects for regexps with the /d flag.
Handle<Map> initial_with_indices_map =
Map::Copy(isolate(), initial_map, "JSRegExpResult with indices");
initial_with_indices_map->set_instance_size(
JSRegExpResultWithIndices::kSize);
DCHECK_EQ(initial_with_indices_map->GetInObjectProperties(),
JSRegExpResultWithIndices::kInObjectPropertyCount);
// indices descriptor
{
Descriptor d =
Descriptor::DataField(isolate(), factory()->indices_string(),
JSRegExpResultWithIndices::kIndicesIndex, NONE,
Representation::Tagged());
Map::EnsureDescriptorSlack(isolate(), initial_with_indices_map, 1);
initial_with_indices_map->AppendDescriptor(isolate(), &d);
}
native_context()->set_regexp_result_map(*initial_map);
native_context()->set_regexp_result_with_indices_map(
*initial_with_indices_map);
}
// Create a constructor for JSRegExpResultIndices (a variant of Array that
// predefines the groups property).
{
// JSRegExpResultIndices initial map.
Handle<Map> initial_map = CreateInitialMapForArraySubclass(
JSRegExpResultIndices::kSize,
JSRegExpResultIndices::kInObjectPropertyCount);
// groups descriptor.
{
Descriptor d = Descriptor::DataField(
isolate(), factory()->groups_string(),
JSRegExpResultIndices::kGroupsIndex, NONE, Representation::Tagged());
initial_map->AppendDescriptor(isolate(), &d);
DCHECK_EQ(initial_map->LastAdded().as_int(),
JSRegExpResultIndices::kGroupsDescriptorIndex);
}
native_context()->set_regexp_result_indices_map(*initial_map);
}
// Add @@iterator method to the arguments object maps.
{
PropertyAttributes attribs = DONT_ENUM;
Handle<AccessorInfo> arguments_iterator =
factory()->arguments_iterator_accessor();
{
Descriptor d = Descriptor::AccessorConstant(factory()->iterator_symbol(),
arguments_iterator, attribs);
Handle<Map> map(native_context()->sloppy_arguments_map(), isolate());
Map::EnsureDescriptorSlack(isolate(), map, 1);
map->AppendDescriptor(isolate(), &d);
}
{
Descriptor d = Descriptor::AccessorConstant(factory()->iterator_symbol(),
arguments_iterator, attribs);
Handle<Map> map(native_context()->fast_aliased_arguments_map(),
isolate());
Map::EnsureDescriptorSlack(isolate(), map, 1);
map->AppendDescriptor(isolate(), &d);
}
{
Descriptor d = Descriptor::AccessorConstant(factory()->iterator_symbol(),
arguments_iterator, attribs);
Handle<Map> map(native_context()->slow_aliased_arguments_map(),
isolate());
Map::EnsureDescriptorSlack(isolate(), map, 1);
map->AppendDescriptor(isolate(), &d);
}
{
Descriptor d = Descriptor::AccessorConstant(factory()->iterator_symbol(),
arguments_iterator, attribs);
Handle<Map> map(native_context()->strict_arguments_map(), isolate());
Map::EnsureDescriptorSlack(isolate(), map, 1);
map->AppendDescriptor(isolate(), &d);
}
}
{
Handle<OrderedHashSet> promises =
OrderedHashSet::Allocate(isolate(), 0).ToHandleChecked();
native_context()->set_atomics_waitasync_promises(*promises);
}
return true;
}
bool Genesis::InstallExtrasBindings() {
HandleScope scope(isolate());
Handle<JSObject> extras_binding = factory()->NewJSObjectWithNullProto();
// binding.isTraceCategoryEnabled(category)
SimpleInstallFunction(isolate(), extras_binding, "isTraceCategoryEnabled",
Builtin::kIsTraceCategoryEnabled, 1, true);
// binding.trace(phase, category, name, id, data)
SimpleInstallFunction(isolate(), extras_binding, "trace", Builtin::kTrace, 5,
true);
InitializeConsole(extras_binding);
native_context()->set_extras_binding_object(*extras_binding);
return true;
}
void Genesis::InitializeMapCaches() {
{
Handle<NormalizedMapCache> cache = NormalizedMapCache::New(isolate());
native_context()->set_normalized_map_cache(*cache);
}
{
Handle<WeakFixedArray> cache = factory()->NewWeakFixedArray(
JSObject::kMapCacheSize, AllocationType::kOld);
DisallowGarbageCollection no_gc;
native_context()->set_map_cache(*cache);
Map initial = native_context()->object_function().initial_map();
cache->Set(0, HeapObjectReference::Weak(initial));
cache->Set(initial.GetInObjectProperties(),
HeapObjectReference::Weak(initial));
}
}
bool Bootstrapper::InstallExtensions(Handle<Context> native_context,
v8::ExtensionConfiguration* extensions) {
// Don't install extensions into the snapshot.
if (isolate_->serializer_enabled()) return true;
BootstrapperActive active(this);
SaveAndSwitchContext saved_context(isolate_, *native_context);
return Genesis::InstallExtensions(isolate_, native_context, extensions) &&
Genesis::InstallSpecialObjects(isolate_, native_context);
}
bool Genesis::InstallSpecialObjects(Isolate* isolate,
Handle<Context> native_context) {
HandleScope scope(isolate);
Handle<JSObject> Error = isolate->error_function();
Handle<String> name = isolate->factory()->stackTraceLimit_string();
Handle<Smi> stack_trace_limit(Smi::FromInt(v8_flags.stack_trace_limit),
isolate);
JSObject::AddProperty(isolate, Error, name, stack_trace_limit, NONE);
#if V8_ENABLE_WEBASSEMBLY
if (v8_flags.expose_wasm) {
// Install the internal data structures into the isolate and expose on
// the global object.
WasmJs::Install(isolate, true);
} else if (v8_flags.validate_asm) {
// Install the internal data structures only; these are needed for asm.js
// translated to Wasm to work correctly.
WasmJs::Install(isolate, false);
}
#endif // V8_ENABLE_WEBASSEMBLY
#ifdef V8_EXPOSE_MEMORY_CORRUPTION_API
if (GetProcessWideSandbox()->is_initialized()) {
SandboxTesting::InstallMemoryCorruptionApi(isolate);
}
#endif // V8_EXPOSE_MEMORY_CORRUPTION_API
return true;
}
static uint32_t Hash(RegisteredExtension* extension) {
return v8::internal::ComputePointerHash(extension);
}
Genesis::ExtensionStates::ExtensionStates() : map_(8) {}
Genesis::ExtensionTraversalState Genesis::ExtensionStates::get_state(
RegisteredExtension* extension) {
base::HashMap::Entry* entry = map_.Lookup(extension, Hash(extension));
if (entry == nullptr) {
return UNVISITED;
}
return static_cast<ExtensionTraversalState>(
reinterpret_cast<intptr_t>(entry->value));
}
void Genesis::ExtensionStates::set_state(RegisteredExtension* extension,
ExtensionTraversalState state) {
map_.LookupOrInsert(extension, Hash(extension))->value =
reinterpret_cast<void*>(static_cast<intptr_t>(state));
}
bool Genesis::InstallExtensions(Isolate* isolate,
Handle<Context> native_context,
v8::ExtensionConfiguration* extensions) {
ExtensionStates extension_states; // All extensions have state UNVISITED.
return InstallAutoExtensions(isolate, &extension_states) &&
(!v8_flags.expose_gc ||
InstallExtension(isolate, "v8/gc", &extension_states)) &&
(!v8_flags.expose_externalize_string ||
InstallExtension(isolate, "v8/externalize", &extension_states)) &&
(!(v8_flags.expose_statistics ||
TracingFlags::is_gc_stats_enabled()) ||
InstallExtension(isolate, "v8/statistics", &extension_states)) &&
(!v8_flags.expose_trigger_failure ||
InstallExtension(isolate, "v8/trigger-failure", &extension_states)) &&
(!v8_flags.expose_ignition_statistics ||
InstallExtension(isolate, "v8/ignition-statistics",
&extension_states)) &&
(!isValidCpuTraceMarkFunctionName() ||
InstallExtension(isolate, "v8/cpumark", &extension_states)) &&
#ifdef ENABLE_VTUNE_TRACEMARK
(!v8_flags.enable_vtune_domain_support ||
InstallExtension(isolate, "v8/vtunedomain", &extension_states)) &&
#endif // ENABLE_VTUNE_TRACEMARK
InstallRequestedExtensions(isolate, extensions, &extension_states);
}
bool Genesis::InstallAutoExtensions(Isolate* isolate,
ExtensionStates* extension_states) {
for (v8::RegisteredExtension* it = v8::RegisteredExtension::first_extension();
it != nullptr; it = it->next()) {
if (it->extension()->auto_enable() &&
!InstallExtension(isolate, it, extension_states)) {
return false;
}
}
return true;
}
bool Genesis::InstallRequestedExtensions(Isolate* isolate,
v8::ExtensionConfiguration* extensions,
ExtensionStates* extension_states) {
for (const char** it = extensions->begin(); it != extensions->end(); ++it) {
if (!InstallExtension(isolate, *it, extension_states)) return false;
}
return true;
}
// Installs a named extension. This methods is unoptimized and does
// not scale well if we want to support a large number of extensions.
bool Genesis::InstallExtension(Isolate* isolate, const char* name,
ExtensionStates* extension_states) {
for (v8::RegisteredExtension* it = v8::RegisteredExtension::first_extension();
it != nullptr; it = it->next()) {
if (strcmp(name, it->extension()->name()) == 0) {
return InstallExtension(isolate, it, extension_states);
}
}
return Utils::ApiCheck(false, "v8::Context::New()",
"Cannot find required extension");
}
bool Genesis::InstallExtension(Isolate* isolate,
v8::RegisteredExtension* current,
ExtensionStates* extension_states) {
HandleScope scope(isolate);
if (extension_states->get_state(current) == INSTALLED) return true;
// The current node has already been visited so there must be a
// cycle in the dependency graph; fail.
if (!Utils::ApiCheck(extension_states->get_state(current) != VISITED,
"v8::Context::New()", "Circular extension dependency")) {
return false;
}
DCHECK(extension_states->get_state(current) == UNVISITED);
extension_states->set_state(current, VISITED);
v8::Extension* extension = current->extension();
// Install the extension's dependencies
for (int i = 0; i < extension->dependency_count(); i++) {
if (!InstallExtension(isolate, extension->dependencies()[i],
extension_states)) {
return false;
}
}
if (!CompileExtension(isolate, extension)) {
// If this failed, it either threw an exception, or the isolate is
// terminating.
DCHECK(isolate->has_pending_exception() ||
(isolate->has_scheduled_exception() &&
isolate->is_execution_terminating()));
if (isolate->has_pending_exception()) {
// We print out the name of the extension that fail to install.
// When an error is thrown during bootstrapping we automatically print
// the line number at which this happened to the console in the isolate
// error throwing functionality.
base::OS::PrintError("Error installing extension '%s'.\n",
current->extension()->name());
isolate->clear_pending_exception();
}
return false;
}
DCHECK(!isolate->has_pending_exception() &&
!isolate->has_scheduled_exception());
extension_states->set_state(current, INSTALLED);
return true;
}
bool Genesis::ConfigureGlobalObject(
v8::Local<v8::ObjectTemplate> global_proxy_template) {
Handle<JSObject> global_proxy(native_context()->global_proxy(), isolate());
Handle<JSObject> global_object(native_context()->global_object(), isolate());
if (!global_proxy_template.IsEmpty()) {
// Configure the global proxy object.
Handle<ObjectTemplateInfo> global_proxy_data =
v8::Utils::OpenHandle(*global_proxy_template);
if (!ConfigureApiObject(global_proxy, global_proxy_data)) return false;
// Configure the global object.
Handle<FunctionTemplateInfo> proxy_constructor(
FunctionTemplateInfo::cast(global_proxy_data->constructor()),
isolate());
if (!proxy_constructor->GetPrototypeTemplate().IsUndefined(isolate())) {
Handle<ObjectTemplateInfo> global_object_data(
ObjectTemplateInfo::cast(proxy_constructor->GetPrototypeTemplate()),
isolate());
if (!ConfigureApiObject(global_object, global_object_data)) return false;
}
}
JSObject::ForceSetPrototype(isolate(), global_proxy, global_object);
native_context()->set_array_buffer_map(
native_context()->array_buffer_fun().initial_map());
return true;
}
bool Genesis::ConfigureApiObject(Handle<JSObject> object,
Handle<ObjectTemplateInfo> object_template) {
DCHECK(!object_template.is_null());
DCHECK(FunctionTemplateInfo::cast(object_template->constructor())
.IsTemplateFor(object->map()));
MaybeHandle<JSObject> maybe_obj =
ApiNatives::InstantiateObject(object->GetIsolate(), object_template);
Handle<JSObject> instantiated_template;
if (!maybe_obj.ToHandle(&instantiated_template)) {
DCHECK(isolate()->has_pending_exception());
isolate()->clear_pending_exception();
return false;
}
TransferObject(instantiated_template, object);
return true;
}
static bool PropertyAlreadyExists(Isolate* isolate, Handle<JSObject> to,
Handle<Name> key) {
LookupIterator it(isolate, to, key, LookupIterator::OWN_SKIP_INTERCEPTOR);
CHECK_NE(LookupIterator::ACCESS_CHECK, it.state());
return it.IsFound();
}
void Genesis::TransferNamedProperties(Handle<JSObject> from,
Handle<JSObject> to) {
// If JSObject::AddProperty asserts due to already existing property,
// it is likely due to both global objects sharing property name(s).
// Merging those two global objects is impossible.
// The global template must not create properties that already exist
// in the snapshotted global object.
if (from->HasFastProperties()) {
Handle<DescriptorArray> descs = Handle<DescriptorArray>(
from->map().instance_descriptors(isolate()), isolate());
for (InternalIndex i : from->map().IterateOwnDescriptors()) {
PropertyDetails details = descs->GetDetails(i);
if (details.location() == PropertyLocation::kField) {
if (details.kind() == PropertyKind::kData) {
HandleScope inner(isolate());
Handle<Name> key = Handle<Name>(descs->GetKey(i), isolate());
// If the property is already there we skip it.
if (PropertyAlreadyExists(isolate(), to, key)) continue;
FieldIndex index = FieldIndex::ForDetails(from->map(), details);
Handle<Object> value = JSObject::FastPropertyAt(
isolate(), from, details.representation(), index);
JSObject::AddProperty(isolate(), to, key, value,
details.attributes());
} else {
DCHECK_EQ(PropertyKind::kAccessor, details.kind());
UNREACHABLE();
}
} else {
DCHECK_EQ(PropertyLocation::kDescriptor, details.location());
DCHECK_EQ(PropertyKind::kAccessor, details.kind());
Handle<Name> key(descs->GetKey(i), isolate());
// If the property is already there we skip it.
if (PropertyAlreadyExists(isolate(), to, key)) continue;
HandleScope inner(isolate());
DCHECK(!to->HasFastProperties());
// Add to dictionary.
Handle<Object> value(descs->GetStrongValue(i), isolate());
PropertyDetails d(PropertyKind::kAccessor, details.attributes(),
PropertyCellType::kMutable);
JSObject::SetNormalizedProperty(to, key, value, d);
}
}
} else if (from->IsJSGlobalObject()) {
// Copy all keys and values in enumeration order.
Handle<GlobalDictionary> properties(
JSGlobalObject::cast(*from).global_dictionary(kAcquireLoad), isolate());
Handle<FixedArray> indices =
GlobalDictionary::IterationIndices(isolate(), properties);
for (int i = 0; i < indices->length(); i++) {
InternalIndex index(Smi::ToInt(indices->get(i)));
Handle<PropertyCell> cell(properties->CellAt(index), isolate());
Handle<Name> key(cell->name(), isolate());
// If the property is already there we skip it.
if (PropertyAlreadyExists(isolate(), to, key)) continue;
// Set the property.
Handle<Object> value(cell->value(), isolate());
if (value->IsTheHole(isolate())) continue;
PropertyDetails details = cell->property_details();
if (details.kind() == PropertyKind::kData) {
JSObject::AddProperty(isolate(), to, key, value, details.attributes());
} else {
DCHECK_EQ(PropertyKind::kAccessor, details.kind());
DCHECK(!to->HasFastProperties());
PropertyDetails d(PropertyKind::kAccessor, details.attributes(),
PropertyCellType::kMutable);
JSObject::SetNormalizedProperty(to, key, value, d);
}
}
} else if (V8_ENABLE_SWISS_NAME_DICTIONARY_BOOL) {
// Copy all keys and values in enumeration order.
Handle<SwissNameDictionary> properties = Handle<SwissNameDictionary>(
from->property_dictionary_swiss(), isolate());
ReadOnlyRoots roots(isolate());
for (InternalIndex entry : properties->IterateEntriesOrdered()) {
Object raw_key;
if (!properties->ToKey(roots, entry, &raw_key)) continue;
DCHECK(raw_key.IsName());
Handle<Name> key(Name::cast(raw_key), isolate());
// If the property is already there we skip it.
if (PropertyAlreadyExists(isolate(), to, key)) continue;
// Set the property.
Handle<Object> value =
Handle<Object>(properties->ValueAt(entry), isolate());
DCHECK(!value->IsCell());
DCHECK(!value->IsTheHole(isolate()));
PropertyDetails details = properties->DetailsAt(entry);
DCHECK_EQ(PropertyKind::kData, details.kind());
JSObject::AddProperty(isolate(), to, key, value, details.attributes());
}
} else {
// Copy all keys and values in enumeration order.
Handle<NameDictionary> properties =
Handle<NameDictionary>(from->property_dictionary(), isolate());
Handle<FixedArray> key_indices =
NameDictionary::IterationIndices(isolate(), properties);
ReadOnlyRoots roots(isolate());
for (int i = 0; i < key_indices->length(); i++) {
InternalIndex key_index(Smi::ToInt(key_indices->get(i)));
Object raw_key = properties->KeyAt(key_index);
DCHECK(properties->IsKey(roots, raw_key));
DCHECK(raw_key.IsName());
Handle<Name> key(Name::cast(raw_key), isolate());
// If the property is already there we skip it.
if (PropertyAlreadyExists(isolate(), to, key)) continue;
// Set the property.
Handle<Object> value =
Handle<Object>(properties->ValueAt(key_index), isolate());
DCHECK(!value->IsCell());
DCHECK(!value->IsTheHole(isolate()));
PropertyDetails details = properties->DetailsAt(key_index);
DCHECK_EQ(PropertyKind::kData, details.kind());
JSObject::AddProperty(isolate(), to, key, value, details.attributes());
}
}
}
void Genesis::TransferIndexedProperties(Handle<JSObject> from,
Handle<JSObject> to) {
// Cloning the elements array is sufficient.
Handle<FixedArray> from_elements =
Handle<FixedArray>(FixedArray::cast(from->elements()), isolate());
Handle<FixedArray> to_elements = factory()->CopyFixedArray(from_elements);
to->set_elements(*to_elements);
}
void Genesis::TransferObject(Handle<JSObject> from, Handle<JSObject> to) {
HandleScope outer(isolate());
DCHECK(!from->IsJSArray());
DCHECK(!to->IsJSArray());
TransferNamedProperties(from, to);
TransferIndexedProperties(from, to);
// Transfer the prototype (new map is needed).
Handle<HeapObject> proto(from->map().prototype(), isolate());
JSObject::ForceSetPrototype(isolate(), to, proto);
}
Handle<Map> Genesis::CreateInitialMapForArraySubclass(int size,
int inobject_properties) {
// Find global.Array.prototype to inherit from.
Handle<JSFunction> array_constructor(native_context()->array_function(),
isolate());
Handle<JSObject> array_prototype(native_context()->initial_array_prototype(),
isolate());
// Add initial map.
Handle<Map> initial_map = factory()->NewMap(
JS_ARRAY_TYPE, size, TERMINAL_FAST_ELEMENTS_KIND, inobject_properties);
initial_map->SetConstructor(*array_constructor);
// Set prototype on map.
initial_map->set_has_non_instance_prototype(false);
Map::SetPrototype(isolate(), initial_map, array_prototype);
// Update map with length accessor from Array.
static constexpr int kTheLengthAccessor = 1;
Map::EnsureDescriptorSlack(isolate(), initial_map,
inobject_properties + kTheLengthAccessor);
// length descriptor.
{
JSFunction array_function = native_context()->array_function();
Handle<DescriptorArray> array_descriptors(
array_function.initial_map().instance_descriptors(isolate()),
isolate());
Handle<String> length = factory()->length_string();
InternalIndex old = array_descriptors->SearchWithCache(
isolate(), *length, array_function.initial_map());
DCHECK(old.is_found());
Descriptor d = Descriptor::AccessorConstant(
length, handle(array_descriptors->GetStrongValue(old), isolate()),
array_descriptors->GetDetails(old).attributes());
initial_map->AppendDescriptor(isolate(), &d);
}
return initial_map;
}
Genesis::Genesis(
Isolate* isolate, MaybeHandle<JSGlobalProxy> maybe_global_proxy,
v8::Local<v8::ObjectTemplate> global_proxy_template,
size_t context_snapshot_index,
v8::DeserializeEmbedderFieldsCallback embedder_fields_deserializer,
v8::MicrotaskQueue* microtask_queue)
: isolate_(isolate), active_(isolate->bootstrapper()) {
RCS_SCOPE(isolate, RuntimeCallCounterId::kGenesis);
result_ = Handle<Context>::null();
global_proxy_ = Handle<JSGlobalProxy>::null();
// Before creating the roots we must save the context and restore it
// on all function exits.
SaveContext saved_context(isolate);
// The deserializer needs to hook up references to the global proxy.
// Create an uninitialized global proxy now if we don't have one
// and initialize it later in CreateNewGlobals.
Handle<JSGlobalProxy> global_proxy;
if (!maybe_global_proxy.ToHandle(&global_proxy)) {
int instance_size = 0;
if (context_snapshot_index > 0) {
// The global proxy function to reinitialize this global proxy is in the
// context that is yet to be deserialized. We need to prepare a global
// proxy of the correct size.
Object size = isolate->heap()->serialized_global_proxy_sizes().get(
static_cast<int>(context_snapshot_index) - 1);
instance_size = Smi::ToInt(size);
} else {
instance_size = JSGlobalProxy::SizeWithEmbedderFields(
global_proxy_template.IsEmpty()
? 0
: global_proxy_template->InternalFieldCount());
}
global_proxy =
isolate->factory()->NewUninitializedJSGlobalProxy(instance_size);
}
// We can only de-serialize a context if the isolate was initialized from
// a snapshot. Otherwise we have to build the context from scratch.
// Also create a context from scratch to expose natives, if required by flag.
DCHECK(native_context_.is_null());
if (isolate->initialized_from_snapshot()) {
Handle<Context> context;
if (Snapshot::NewContextFromSnapshot(isolate, global_proxy,
context_snapshot_index,
embedder_fields_deserializer)
.ToHandle(&context)) {
native_context_ = Handle<NativeContext>::cast(context);
}
}
if (!native_context().is_null()) {
AddToWeakNativeContextList(isolate, *native_context());
isolate->set_context(*native_context());
// If no global proxy template was passed in, simply use the global in the
// snapshot. If a global proxy template was passed in it's used to recreate
// the global object and its prototype chain, and the data and the accessor
// properties from the deserialized global are copied onto it.
if (context_snapshot_index == 0 && !global_proxy_template.IsEmpty()) {
Handle<JSGlobalObject> global_object =
CreateNewGlobals(global_proxy_template, global_proxy);
HookUpGlobalObject(global_object);
if (!ConfigureGlobalObject(global_proxy_template)) return;
} else {
// The global proxy needs to be integrated into the native context.
HookUpGlobalProxy(global_proxy);
}
DCHECK_EQ(global_proxy->native_context(), *native_context());
DCHECK(!global_proxy->IsDetachedFrom(native_context()->global_object()));
} else {
DCHECK(native_context().is_null());
base::ElapsedTimer timer;
if (v8_flags.profile_deserialization) timer.Start();
DCHECK_EQ(0u, context_snapshot_index);
// We get here if there was no context snapshot.
CreateRoots();
MathRandom::InitializeContext(isolate, native_context());
Handle<JSFunction> empty_function = CreateEmptyFunction();
CreateSloppyModeFunctionMaps(empty_function);
CreateStrictModeFunctionMaps(empty_function);
CreateObjectFunction(empty_function);
CreateIteratorMaps(empty_function);
CreateAsyncIteratorMaps(empty_function);
CreateAsyncFunctionMaps(empty_function);
Handle<JSGlobalObject> global_object =
CreateNewGlobals(global_proxy_template, global_proxy);
InitializeMapCaches();
InitializeGlobal(global_object, empty_function);
InitializeIteratorFunctions();
InitializeCallSiteBuiltins();
if (!InstallABunchOfRandomThings()) return;
if (!InstallExtrasBindings()) return;
if (!ConfigureGlobalObject(global_proxy_template)) return;
if (v8_flags.profile_deserialization) {
double ms = timer.Elapsed().InMillisecondsF();
PrintF("[Initializing context from scratch took %0.3f ms]\n", ms);
}
}
native_context()->set_microtask_queue(
isolate, microtask_queue ? static_cast<MicrotaskQueue*>(microtask_queue)
: isolate->default_microtask_queue());
// Install experimental natives. Do not include them into the
// snapshot as we should be able to turn them off at runtime. Re-installing
// them after they have already been deserialized would also fail.
if (!isolate->serializer_enabled()) {
InitializeExperimentalGlobal();
// Store String.prototype's map again in case it has been changed by
// experimental natives.
Handle<JSFunction> string_function(native_context()->string_function(),
isolate);
JSObject string_function_prototype =
JSObject::cast(string_function->initial_map().prototype());
DCHECK(string_function_prototype.HasFastProperties());
native_context()->set_string_function_prototype_map(
string_function_prototype.map());
}
if (v8_flags.disallow_code_generation_from_strings) {
native_context()->set_allow_code_gen_from_strings(
ReadOnlyRoots(isolate).false_value());
}
// We created new functions, which may require debug instrumentation.
if (isolate->debug()->is_active()) {
isolate->debug()->InstallDebugBreakTrampoline();
}
native_context()->ResetErrorsThrown();
result_ = native_context();
}
Genesis::Genesis(Isolate* isolate,
MaybeHandle<JSGlobalProxy> maybe_global_proxy,
v8::Local<v8::ObjectTemplate> global_proxy_template)
: isolate_(isolate), active_(isolate->bootstrapper()) {
result_ = Handle<Context>::null();
global_proxy_ = Handle<JSGlobalProxy>::null();
// Before creating the roots we must save the context and restore it
// on all function exits.
SaveContext saved_context(isolate);
const int proxy_size = JSGlobalProxy::SizeWithEmbedderFields(
global_proxy_template->InternalFieldCount());
Handle<JSGlobalProxy> global_proxy;
if (!maybe_global_proxy.ToHandle(&global_proxy)) {
global_proxy = factory()->NewUninitializedJSGlobalProxy(proxy_size);
}
// Create a remote object as the global object.
Handle<ObjectTemplateInfo> global_proxy_data =
Utils::OpenHandle(*global_proxy_template);
Handle<FunctionTemplateInfo> global_constructor(
FunctionTemplateInfo::cast(global_proxy_data->constructor()), isolate);
Handle<ObjectTemplateInfo> global_object_template(
ObjectTemplateInfo::cast(global_constructor->GetPrototypeTemplate()),
isolate);
Handle<JSObject> global_object =
ApiNatives::InstantiateRemoteObject(global_object_template)
.ToHandleChecked();
// (Re)initialize the global proxy object.
DCHECK_EQ(global_proxy_data->embedder_field_count(),
global_proxy_template->InternalFieldCount());
Handle<Map> global_proxy_map = isolate->factory()->NewMap(
JS_GLOBAL_PROXY_TYPE, proxy_size, TERMINAL_FAST_ELEMENTS_KIND);
global_proxy_map->set_is_access_check_needed(true);
global_proxy_map->set_may_have_interesting_properties(true);
// A remote global proxy has no native context.
global_proxy->set_native_context(ReadOnlyRoots(heap()).null_value());
// Configure the hidden prototype chain of the global proxy.
JSObject::ForceSetPrototype(isolate, global_proxy, global_object);
global_proxy->map().SetConstructor(*global_constructor);
global_proxy_ = global_proxy;
}
// Support for thread preemption.
// Reserve space for statics needing saving and restoring.
int Bootstrapper::ArchiveSpacePerThread() { return sizeof(NestingCounterType); }
// Archive statics that are thread-local.
char* Bootstrapper::ArchiveState(char* to) {
*reinterpret_cast<NestingCounterType*>(to) = nesting_;
nesting_ = 0;
return to + sizeof(NestingCounterType);
}
// Restore statics that are thread-local.
char* Bootstrapper::RestoreState(char* from) {
nesting_ = *reinterpret_cast<NestingCounterType*>(from);
return from + sizeof(NestingCounterType);
}
// Called when the top-level V8 mutex is destroyed.
void Bootstrapper::FreeThreadResources() { DCHECK(!IsActive()); }
} // namespace internal
} // namespace v8