| // 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/bootstrapper.h" |
| |
| #include "src/accessors.h" |
| #include "src/api-natives.h" |
| #include "src/api.h" |
| #include "src/base/ieee754.h" |
| #include "src/code-stubs.h" |
| #include "src/compiler.h" |
| #include "src/debug/debug.h" |
| #include "src/extensions/externalize-string-extension.h" |
| #include "src/extensions/free-buffer-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/heap/heap.h" |
| #include "src/isolate-inl.h" |
| #include "src/objects/js-regexp.h" |
| #include "src/snapshot/natives.h" |
| #include "src/snapshot/snapshot.h" |
| #include "src/wasm/wasm-js.h" |
| |
| #if V8_INTL_SUPPORT |
| #include "src/objects/intl-objects.h" |
| #endif // V8_INTL_SUPPORT |
| |
| #if V8_OS_STARBOARD |
| #include "src/poems.h" |
| #endif |
| |
| namespace v8 { |
| namespace internal { |
| |
| void SourceCodeCache::Initialize(Isolate* isolate, bool create_heap_objects) { |
| cache_ = create_heap_objects ? isolate->heap()->empty_fixed_array() : nullptr; |
| } |
| |
| bool SourceCodeCache::Lookup(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->IsUtf8EqualTo(name)) { |
| *handle = Handle<SharedFunctionInfo>( |
| SharedFunctionInfo::cast(cache_->get(i + 1))); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| void SourceCodeCache::Add(Vector<const char> name, |
| Handle<SharedFunctionInfo> shared) { |
| Isolate* isolate = shared->GetIsolate(); |
| Factory* factory = isolate->factory(); |
| HandleScope scope(isolate); |
| int length = cache_->length(); |
| Handle<FixedArray> new_array = factory->NewFixedArray(length + 2, TENURED); |
| cache_->CopyTo(0, *new_array, 0, cache_->length()); |
| cache_ = *new_array; |
| Handle<String> str = |
| factory->NewStringFromOneByte(Vector<const uint8_t>::cast(name), TENURED) |
| .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_EXTENSION) {} |
| |
| Handle<String> Bootstrapper::GetNativeSource(NativeType type, int index) { |
| NativesExternalStringResource* resource = |
| new NativesExternalStringResource(type, index); |
| Handle<ExternalOneByteString> source_code = |
| isolate_->factory()->NewNativeSourceString(resource); |
| isolate_->heap()->RegisterExternalString(*source_code); |
| DCHECK(source_code->is_short()); |
| return source_code; |
| } |
| |
| void Bootstrapper::Initialize(bool create_heap_objects) { |
| extensions_cache_.Initialize(isolate_, create_heap_objects); |
| } |
| |
| |
| static const char* GCFunctionName() { |
| bool flag_given = |
| FLAG_expose_gc_as != nullptr && strlen(FLAG_expose_gc_as) != 0; |
| return flag_given ? FLAG_expose_gc_as : "gc"; |
| } |
| |
| v8::Extension* Bootstrapper::free_buffer_extension_ = nullptr; |
| v8::Extension* Bootstrapper::gc_extension_ = nullptr; |
| v8::Extension* Bootstrapper::externalize_string_extension_ = nullptr; |
| v8::Extension* Bootstrapper::statistics_extension_ = nullptr; |
| v8::Extension* Bootstrapper::trigger_failure_extension_ = nullptr; |
| v8::Extension* Bootstrapper::ignition_statistics_extension_ = nullptr; |
| |
| void Bootstrapper::InitializeOncePerProcess() { |
| free_buffer_extension_ = new FreeBufferExtension; |
| v8::RegisterExtension(free_buffer_extension_); |
| gc_extension_ = new GCExtension(GCFunctionName()); |
| v8::RegisterExtension(gc_extension_); |
| externalize_string_extension_ = new ExternalizeStringExtension; |
| v8::RegisterExtension(externalize_string_extension_); |
| statistics_extension_ = new StatisticsExtension; |
| v8::RegisterExtension(statistics_extension_); |
| trigger_failure_extension_ = new TriggerFailureExtension; |
| v8::RegisterExtension(trigger_failure_extension_); |
| ignition_statistics_extension_ = new IgnitionStatisticsExtension; |
| v8::RegisterExtension(ignition_statistics_extension_); |
| } |
| |
| |
| void Bootstrapper::TearDownExtensions() { |
| delete free_buffer_extension_; |
| free_buffer_extension_ = nullptr; |
| delete gc_extension_; |
| gc_extension_ = nullptr; |
| delete externalize_string_extension_; |
| externalize_string_extension_ = nullptr; |
| delete statistics_extension_; |
| statistics_extension_ = nullptr; |
| delete trigger_failure_extension_; |
| trigger_failure_extension_ = nullptr; |
| delete ignition_statistics_extension_; |
| ignition_statistics_extension_ = nullptr; |
| } |
| |
| void Bootstrapper::TearDown() { |
| extensions_cache_.Initialize(isolate_, false); // Yes, symmetrical |
| } |
| |
| |
| class Genesis BASE_EMBEDDED { |
| 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, |
| GlobalContextType context_type); |
| Genesis(Isolate* isolate, MaybeHandle<JSGlobalProxy> maybe_global_proxy, |
| v8::Local<v8::ObjectTemplate> global_proxy_template); |
| ~Genesis() { } |
| |
| 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<Context> 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(Isolate* isolate); |
| // 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 partial 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, |
| GlobalContextType context_type); |
| void InitializeExperimentalGlobal(); |
| // Depending on the situation, expose and/or get rid of the utils object. |
| void ConfigureUtilsObject(GlobalContextType context_type); |
| |
| #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 |
| |
| enum ArrayBufferKind { |
| ARRAY_BUFFER, |
| SHARED_ARRAY_BUFFER, |
| }; |
| Handle<JSFunction> CreateArrayBuffer(Handle<String> name, |
| ArrayBufferKind array_buffer_kind); |
| Handle<JSFunction> InstallInternalArray(Handle<JSObject> target, |
| const char* name, |
| ElementsKind elements_kind); |
| bool InstallNatives(GlobalContextType context_type); |
| |
| Handle<JSFunction> InstallTypedArray(const char* name, |
| ElementsKind elements_kind); |
| bool InstallExtraNatives(); |
| bool InstallExperimentalExtraNatives(); |
| bool InstallDebuggerNatives(); |
| void InstallBuiltinFunctionIds(); |
| void InstallExperimentalBuiltinFunctionIds(); |
| void InitializeNormalizedMapCaches(); |
| |
| enum ExtensionTraversalState { |
| UNVISITED, VISITED, INSTALLED |
| }; |
| |
| class ExtensionStates { |
| public: |
| ExtensionStates(); |
| ExtensionTraversalState get_state(RegisteredExtension* extension); |
| void set_state(RegisteredExtension* extension, |
| ExtensionTraversalState state); |
| private: |
| base::HashMap map_; |
| DISALLOW_COPY_AND_ASSIGN(ExtensionStates); |
| }; |
| |
| // Used both for deserialized and from-scratch contexts to add the extensions |
| // provided. |
| static bool InstallExtensions(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(Handle<Context> native_context); |
| bool ConfigureApiObject(Handle<JSObject> object, |
| Handle<ObjectTemplateInfo> object_template); |
| bool ConfigureGlobalObjects( |
| 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); |
| |
| static bool CallUtilsFunction(Isolate* isolate, const char* name); |
| |
| static bool CompileExtension(Isolate* isolate, v8::Extension* extension); |
| |
| Isolate* isolate_; |
| Handle<Context> result_; |
| Handle<Context> native_context_; |
| Handle<JSGlobalProxy> global_proxy_; |
| |
| // Temporary function maps needed only during bootstrapping. |
| Handle<Map> strict_function_with_home_object_map_; |
| Handle<Map> strict_function_with_name_and_home_object_map_; |
| |
| // %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, |
| GlobalContextType context_type) { |
| HandleScope scope(isolate_); |
| Handle<Context> env; |
| { |
| Genesis genesis(isolate_, maybe_global_proxy, global_proxy_template, |
| context_snapshot_index, embedder_fields_deserializer, |
| context_type); |
| env = genesis.result(); |
| if (env.is_null() || !InstallExtensions(env, extensions)) { |
| return Handle<Context>(); |
| } |
| } |
| // Log all maps created during bootstrapping. |
| if (FLAG_trace_maps) LOG(isolate_, LogMaps()); |
| 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>(); |
| } |
| // Log all maps created during bootstrapping. |
| if (FLAG_trace_maps) LOG(isolate_, LogMaps()); |
| return scope.CloseAndEscape(global_proxy); |
| } |
| |
| void Bootstrapper::DetachGlobal(Handle<Context> env) { |
| Isolate* isolate = env->GetIsolate(); |
| isolate->counters()->errors_thrown_per_context()->AddSample( |
| env->GetErrorsThrown()); |
| |
| Heap* heap = isolate->heap(); |
| Handle<JSGlobalProxy> global_proxy(JSGlobalProxy::cast(env->global_proxy())); |
| global_proxy->set_native_context(heap->null_value()); |
| JSObject::ForceSetPrototype(global_proxy, isolate->factory()->null_value()); |
| global_proxy->map()->SetConstructor(heap->null_value()); |
| if (FLAG_track_detached_contexts) { |
| env->GetIsolate()->AddDetachedContext(env); |
| } |
| } |
| |
| namespace { |
| |
| // Non-construct case. |
| V8_NOINLINE Handle<SharedFunctionInfo> SimpleCreateSharedFunctionInfo( |
| Isolate* isolate, Builtins::Name builtin_id, Handle<String> name, int len) { |
| Handle<Code> code = isolate->builtins()->builtin_handle(builtin_id); |
| const bool kNotConstructor = false; |
| Handle<SharedFunctionInfo> shared = isolate->factory()->NewSharedFunctionInfo( |
| name, code, kNotConstructor, kNormalFunction, builtin_id); |
| shared->set_internal_formal_parameter_count(len); |
| shared->set_length(len); |
| return shared; |
| } |
| |
| // Construct case. |
| V8_NOINLINE Handle<SharedFunctionInfo> SimpleCreateSharedFunctionInfo( |
| Isolate* isolate, Builtins::Name builtin_id, Handle<String> name, |
| Handle<String> instance_class_name, int len) { |
| Handle<Code> code = isolate->builtins()->builtin_handle(builtin_id); |
| const bool kIsConstructor = true; |
| Handle<SharedFunctionInfo> shared = isolate->factory()->NewSharedFunctionInfo( |
| name, code, kIsConstructor, kNormalFunction, builtin_id); |
| shared->SetConstructStub(*BUILTIN_CODE(isolate, JSBuiltinsConstructStub)); |
| shared->set_instance_class_name(*instance_class_name); |
| shared->set_internal_formal_parameter_count(len); |
| shared->set_length(len); |
| return shared; |
| } |
| |
| V8_NOINLINE void InstallFunction(Handle<JSObject> target, |
| Handle<Name> property_name, |
| Handle<JSFunction> function, |
| Handle<String> function_name, |
| PropertyAttributes attributes = DONT_ENUM) { |
| JSObject::AddProperty(target, property_name, function, attributes); |
| if (target->IsJSGlobalObject()) { |
| function->shared()->set_instance_class_name(*function_name); |
| } |
| } |
| |
| V8_NOINLINE void InstallFunction(Handle<JSObject> target, |
| Handle<JSFunction> function, Handle<Name> name, |
| PropertyAttributes attributes = DONT_ENUM) { |
| Handle<String> name_string = Name::ToFunctionName(name).ToHandleChecked(); |
| InstallFunction(target, name, function, name_string, attributes); |
| } |
| |
| V8_NOINLINE Handle<JSFunction> CreateFunction( |
| Isolate* isolate, Handle<String> name, InstanceType type, int instance_size, |
| int inobject_properties, MaybeHandle<Object> maybe_prototype, |
| Builtins::Name builtin_id) { |
| Handle<Code> code(isolate->builtins()->builtin(builtin_id)); |
| Handle<Object> prototype; |
| Handle<JSFunction> result; |
| |
| if (maybe_prototype.ToHandle(&prototype)) { |
| NewFunctionArgs args = NewFunctionArgs::ForBuiltinWithPrototype( |
| name, code, prototype, type, instance_size, inobject_properties, |
| builtin_id, IMMUTABLE); |
| |
| result = isolate->factory()->NewFunction(args); |
| // Make the JSFunction's prototype object fast. |
| JSObject::MakePrototypesFast(handle(result->prototype(), isolate), |
| kStartAtReceiver, isolate); |
| } else { |
| NewFunctionArgs args = NewFunctionArgs::ForBuiltinWithoutPrototype( |
| name, code, builtin_id, LanguageMode::kStrict); |
| result = isolate->factory()->NewFunction(args); |
| } |
| |
| // Make the resulting JSFunction object fast. |
| JSObject::MakePrototypesFast(result, kStartAtReceiver, isolate); |
| result->shared()->set_native(true); |
| return result; |
| } |
| |
| V8_NOINLINE Handle<JSFunction> InstallFunction( |
| Handle<JSObject> target, Handle<Name> name, InstanceType type, |
| int instance_size, int inobject_properties, |
| MaybeHandle<Object> maybe_prototype, Builtins::Name call, |
| PropertyAttributes attributes) { |
| Handle<String> name_string = Name::ToFunctionName(name).ToHandleChecked(); |
| Handle<JSFunction> function = |
| CreateFunction(target->GetIsolate(), name_string, type, instance_size, |
| inobject_properties, maybe_prototype, call); |
| InstallFunction(target, name, function, name_string, attributes); |
| return function; |
| } |
| |
| V8_NOINLINE Handle<JSFunction> InstallFunction( |
| Handle<JSObject> target, const char* name, InstanceType type, |
| int instance_size, int inobject_properties, |
| MaybeHandle<Object> maybe_prototype, Builtins::Name call) { |
| Factory* const factory = target->GetIsolate()->factory(); |
| PropertyAttributes attributes = DONT_ENUM; |
| return InstallFunction(target, factory->InternalizeUtf8String(name), type, |
| instance_size, inobject_properties, maybe_prototype, |
| call, attributes); |
| } |
| |
| V8_NOINLINE Handle<JSFunction> SimpleCreateFunction(Isolate* isolate, |
| Handle<String> name, |
| Builtins::Name call, |
| int len, bool adapt) { |
| Handle<JSFunction> fun = |
| CreateFunction(isolate, name, JS_OBJECT_TYPE, JSObject::kHeaderSize, 0, |
| MaybeHandle<JSObject>(), call); |
| if (adapt) { |
| fun->shared()->set_internal_formal_parameter_count(len); |
| } else { |
| fun->shared()->DontAdaptArguments(); |
| } |
| fun->shared()->set_length(len); |
| return fun; |
| } |
| |
| V8_NOINLINE Handle<JSFunction> SimpleInstallFunction( |
| Handle<JSObject> base, Handle<Name> property_name, |
| Handle<String> function_name, Builtins::Name call, int len, bool adapt, |
| PropertyAttributes attrs = DONT_ENUM, |
| BuiltinFunctionId id = kInvalidBuiltinFunctionId) { |
| Handle<JSFunction> fun = |
| SimpleCreateFunction(base->GetIsolate(), function_name, call, len, adapt); |
| if (id != kInvalidBuiltinFunctionId) { |
| fun->shared()->set_builtin_function_id(id); |
| } |
| InstallFunction(base, fun, property_name, attrs); |
| return fun; |
| } |
| |
| V8_NOINLINE Handle<JSFunction> SimpleInstallFunction( |
| Handle<JSObject> base, Handle<String> name, Builtins::Name call, int len, |
| bool adapt, PropertyAttributes attrs = DONT_ENUM, |
| BuiltinFunctionId id = kInvalidBuiltinFunctionId) { |
| return SimpleInstallFunction(base, name, name, call, len, adapt, attrs, id); |
| } |
| |
| V8_NOINLINE Handle<JSFunction> SimpleInstallFunction( |
| Handle<JSObject> base, Handle<Name> property_name, |
| const char* function_name, Builtins::Name call, int len, bool adapt, |
| PropertyAttributes attrs = DONT_ENUM, |
| BuiltinFunctionId id = kInvalidBuiltinFunctionId) { |
| Factory* const factory = base->GetIsolate()->factory(); |
| // Function name does not have to be internalized. |
| return SimpleInstallFunction( |
| base, property_name, factory->NewStringFromAsciiChecked(function_name), |
| call, len, adapt, attrs, id); |
| } |
| |
| V8_NOINLINE Handle<JSFunction> SimpleInstallFunction( |
| Handle<JSObject> base, const char* name, Builtins::Name call, int len, |
| bool adapt, PropertyAttributes attrs = DONT_ENUM, |
| BuiltinFunctionId id = kInvalidBuiltinFunctionId) { |
| Factory* const factory = base->GetIsolate()->factory(); |
| // Although function name does not have to be internalized the property name |
| // will be internalized during property addition anyway, so do it here now. |
| return SimpleInstallFunction(base, factory->InternalizeUtf8String(name), call, |
| len, adapt, attrs, id); |
| } |
| |
| V8_NOINLINE Handle<JSFunction> SimpleInstallFunction(Handle<JSObject> base, |
| const char* name, |
| Builtins::Name call, |
| int len, bool adapt, |
| BuiltinFunctionId id) { |
| return SimpleInstallFunction(base, name, call, len, adapt, DONT_ENUM, id); |
| } |
| |
| V8_NOINLINE void SimpleInstallGetterSetter(Handle<JSObject> base, |
| Handle<String> name, |
| Builtins::Name call_getter, |
| Builtins::Name call_setter, |
| PropertyAttributes attribs) { |
| Isolate* const isolate = base->GetIsolate(); |
| |
| Handle<String> getter_name = |
| Name::ToFunctionName(name, isolate->factory()->get_string()) |
| .ToHandleChecked(); |
| Handle<JSFunction> getter = |
| SimpleCreateFunction(isolate, getter_name, call_getter, 0, true); |
| |
| Handle<String> setter_name = |
| Name::ToFunctionName(name, isolate->factory()->set_string()) |
| .ToHandleChecked(); |
| Handle<JSFunction> setter = |
| SimpleCreateFunction(isolate, setter_name, call_setter, 1, true); |
| |
| JSObject::DefineAccessor(base, name, getter, setter, attribs).Check(); |
| } |
| |
| V8_NOINLINE Handle<JSFunction> SimpleInstallGetter(Handle<JSObject> base, |
| Handle<Name> name, |
| Handle<Name> property_name, |
| Builtins::Name call, |
| bool adapt) { |
| Isolate* const isolate = base->GetIsolate(); |
| |
| Handle<String> getter_name = |
| Name::ToFunctionName(name, isolate->factory()->get_string()) |
| .ToHandleChecked(); |
| Handle<JSFunction> getter = |
| SimpleCreateFunction(isolate, getter_name, call, 0, adapt); |
| |
| Handle<Object> setter = isolate->factory()->undefined_value(); |
| |
| JSObject::DefineAccessor(base, property_name, getter, setter, DONT_ENUM) |
| .Check(); |
| |
| return getter; |
| } |
| |
| V8_NOINLINE Handle<JSFunction> SimpleInstallGetter(Handle<JSObject> base, |
| Handle<Name> name, |
| Builtins::Name call, |
| bool adapt) { |
| return SimpleInstallGetter(base, name, name, call, adapt); |
| } |
| |
| V8_NOINLINE Handle<JSFunction> SimpleInstallGetter(Handle<JSObject> base, |
| Handle<Name> name, |
| Builtins::Name call, |
| bool adapt, |
| BuiltinFunctionId id) { |
| Handle<JSFunction> fun = SimpleInstallGetter(base, name, call, adapt); |
| fun->shared()->set_builtin_function_id(id); |
| return fun; |
| } |
| |
| V8_NOINLINE void InstallConstant(Isolate* isolate, Handle<JSObject> holder, |
| const char* name, Handle<Object> value) { |
| JSObject::AddProperty( |
| holder, isolate->factory()->NewStringFromAsciiChecked(name), value, |
| static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY)); |
| } |
| |
| V8_NOINLINE void InstallSpeciesGetter(Handle<JSFunction> constructor) { |
| Factory* factory = constructor->GetIsolate()->factory(); |
| // TODO(adamk): We should be able to share a SharedFunctionInfo |
| // between all these JSFunctins. |
| SimpleInstallGetter(constructor, factory->symbol_species_string(), |
| factory->species_symbol(), Builtins::kReturnReceiver, |
| true); |
| } |
| |
| } // namespace |
| |
| Handle<JSFunction> Genesis::CreateEmptyFunction(Isolate* isolate) { |
| Factory* factory = isolate->factory(); |
| |
| // 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<Code> code(BUILTIN_CODE(isolate, EmptyFunction)); |
| NewFunctionArgs args = |
| NewFunctionArgs::ForBuiltin(factory->empty_string(), code, |
| empty_function_map, Builtins::kEmptyFunction); |
| Handle<JSFunction> empty_function = factory->NewFunction(args); |
| |
| // --- E m p t y --- |
| Handle<String> source = factory->NewStringFromStaticChars("() {}"); |
| Handle<Script> script = factory->NewScript(source); |
| script->set_type(Script::TYPE_NATIVE); |
| Handle<FixedArray> infos = factory->NewFixedArray(2); |
| script->set_shared_function_infos(*infos); |
| empty_function->shared()->set_start_position(0); |
| empty_function->shared()->set_end_position(source->length()); |
| empty_function->shared()->set_function_literal_id(1); |
| empty_function->shared()->DontAdaptArguments(); |
| SharedFunctionInfo::SetScript(handle(empty_function->shared()), script); |
| |
| 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<Code> code = BUILTIN_CODE(isolate(), StrictPoisonPillThrower); |
| NewFunctionArgs args = NewFunctionArgs::ForBuiltinWithoutPrototype( |
| name, code, Builtins::kStrictPoisonPillThrower, i::LanguageMode::kStrict); |
| Handle<JSFunction> function = factory()->NewFunction(args); |
| function->shared()->DontAdaptArguments(); |
| |
| // %ThrowTypeError% must not have a name property. |
| if (JSReceiver::DeleteProperty(function, factory()->name_string()) |
| .IsNothing()) { |
| DCHECK(false); |
| } |
| |
| // length needs to be non configurable. |
| Handle<Object> value(Smi::FromInt(function->shared()->GetLength()), |
| isolate()); |
| JSObject::SetOwnPropertyIgnoreAttributes( |
| function, factory()->length_string(), value, |
| static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY)) |
| .Assert(); |
| |
| if (JSObject::PreventExtensions(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); |
| |
| map = factory->CreateStrictFunctionMap(METHOD_WITH_HOME_OBJECT, empty); |
| native_context()->set_method_with_home_object_map(*map); |
| |
| map = |
| factory->CreateStrictFunctionMap(METHOD_WITH_NAME_AND_HOME_OBJECT, empty); |
| native_context()->set_method_with_name_and_home_object_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); |
| |
| strict_function_with_home_object_map_ = factory->CreateStrictFunctionMap( |
| FUNCTION_WITH_HOME_OBJECT_AND_WRITEABLE_PROTOTYPE, empty); |
| strict_function_with_name_and_home_object_map_ = |
| factory->CreateStrictFunctionMap( |
| FUNCTION_WITH_NAME_AND_HOME_OBJECT_AND_WRITEABLE_PROTOTYPE, empty); |
| |
| // |
| // 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 + kPointerSize * inobject_properties; |
| |
| Handle<JSFunction> object_fun = CreateFunction( |
| isolate_, factory->Object_string(), JS_OBJECT_TYPE, instance_size, |
| inobject_properties, factory->null_value(), Builtins::kObjectConstructor); |
| object_fun->shared()->set_length(1); |
| object_fun->shared()->DontAdaptArguments(); |
| object_fun->shared()->SetConstructStub( |
| *BUILTIN_CODE(isolate_, ObjectConstructor_ConstructStub)); |
| 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(handle(object_function_prototype->map()), |
| "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(empty_function_map, object_function_prototype); |
| } |
| |
| native_context()->set_initial_object_prototype(*object_function_prototype); |
| JSFunction::SetPrototype(object_fun, object_function_prototype); |
| |
| { |
| // Set up slow map for Object.create(null) instances without in-object |
| // properties. |
| Handle<Map> map(object_fun->initial_map(), isolate_); |
| map = Map::CopyInitialMapNormalized(map); |
| Map::SetPrototype(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(map, "slow_object_with_object_prototype_map"); |
| Map::SetPrototype(map, object_function_prototype); |
| native_context()->set_slow_object_with_object_prototype_map(*map); |
| } |
| } |
| |
| namespace { |
| |
| Handle<Map> CreateNonConstructorMap(Handle<Map> source_map, |
| Handle<JSObject> prototype, |
| const char* reason) { |
| Handle<Map> map = Map::Copy(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. |
| // TODO(ulan): Do not change instance size after map creation. |
| int unused_property_fields = map->UnusedPropertyFields(); |
| map->set_instance_size(map->instance_size() + kPointerSize); |
| // 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(map, prototype); |
| return map; |
| } |
| |
| } // namespace |
| |
| void Genesis::CreateIteratorMaps(Handle<JSFunction> empty) { |
| // Create iterator-related meta-objects. |
| Handle<JSObject> iterator_prototype = |
| factory()->NewJSObject(isolate()->object_function(), TENURED); |
| |
| SimpleInstallFunction(iterator_prototype, factory()->iterator_symbol(), |
| "[Symbol.iterator]", Builtins::kReturnReceiver, 0, |
| true); |
| native_context()->set_initial_iterator_prototype(*iterator_prototype); |
| |
| Handle<JSObject> generator_object_prototype = |
| factory()->NewJSObject(isolate()->object_function(), TENURED); |
| native_context()->set_initial_generator_prototype( |
| *generator_object_prototype); |
| JSObject::ForceSetPrototype(generator_object_prototype, iterator_prototype); |
| Handle<JSObject> generator_function_prototype = |
| factory()->NewJSObject(isolate()->object_function(), TENURED); |
| JSObject::ForceSetPrototype(generator_function_prototype, empty); |
| |
| JSObject::AddProperty( |
| generator_function_prototype, factory()->to_string_tag_symbol(), |
| factory()->NewStringFromAsciiChecked("GeneratorFunction"), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| JSObject::AddProperty(generator_function_prototype, |
| factory()->prototype_string(), |
| generator_object_prototype, |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| JSObject::AddProperty(generator_object_prototype, |
| factory()->constructor_string(), |
| generator_function_prototype, |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| JSObject::AddProperty(generator_object_prototype, |
| factory()->to_string_tag_symbol(), |
| factory()->NewStringFromAsciiChecked("Generator"), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| SimpleInstallFunction(generator_object_prototype, "next", |
| Builtins::kGeneratorPrototypeNext, 1, false); |
| SimpleInstallFunction(generator_object_prototype, "return", |
| Builtins::kGeneratorPrototypeReturn, 1, false); |
| SimpleInstallFunction(generator_object_prototype, "throw", |
| Builtins::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(), |
| Builtins::kGeneratorPrototypeNext, 1, false); |
| generator_next_internal->shared()->set_native(false); |
| native_context()->set_generator_next_internal(*generator_next_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()->strict_function_map(), |
| generator_function_prototype, |
| "GeneratorFunction"); |
| native_context()->set_generator_function_map(*map); |
| |
| map = CreateNonConstructorMap(isolate()->strict_function_with_name_map(), |
| generator_function_prototype, |
| "GeneratorFunction with name"); |
| native_context()->set_generator_function_with_name_map(*map); |
| |
| map = CreateNonConstructorMap(strict_function_with_home_object_map_, |
| generator_function_prototype, |
| "GeneratorFunction with home object"); |
| native_context()->set_generator_function_with_home_object_map(*map); |
| |
| map = CreateNonConstructorMap(strict_function_with_name_and_home_object_map_, |
| generator_function_prototype, |
| "GeneratorFunction with name and home object"); |
| native_context()->set_generator_function_with_name_and_home_object_map(*map); |
| |
| Handle<JSFunction> object_function(native_context()->object_function()); |
| Handle<Map> generator_object_prototype_map = Map::Create(isolate(), 0); |
| Map::SetPrototype(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(), TENURED); |
| |
| SimpleInstallFunction( |
| async_iterator_prototype, factory()->async_iterator_symbol(), |
| "[Symbol.asyncIterator]", Builtins::kReturnReceiver, 0, true); |
| |
| // %AsyncFromSyncIteratorPrototype% |
| // proposal-async-iteration/#sec-%asyncfromsynciteratorprototype%-object |
| Handle<JSObject> async_from_sync_iterator_prototype = |
| factory()->NewJSObject(isolate()->object_function(), TENURED); |
| SimpleInstallFunction(async_from_sync_iterator_prototype, |
| factory()->next_string(), |
| Builtins::kAsyncFromSyncIteratorPrototypeNext, 1, true); |
| SimpleInstallFunction( |
| async_from_sync_iterator_prototype, factory()->return_string(), |
| Builtins::kAsyncFromSyncIteratorPrototypeReturn, 1, true); |
| SimpleInstallFunction( |
| async_from_sync_iterator_prototype, factory()->throw_string(), |
| Builtins::kAsyncFromSyncIteratorPrototypeThrow, 1, true); |
| |
| JSObject::AddProperty( |
| async_from_sync_iterator_prototype, factory()->to_string_tag_symbol(), |
| factory()->NewStringFromAsciiChecked("Async-from-Sync Iterator"), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| JSObject::ForceSetPrototype(async_from_sync_iterator_prototype, |
| async_iterator_prototype); |
| |
| Handle<Map> async_from_sync_iterator_map = factory()->NewMap( |
| JS_ASYNC_FROM_SYNC_ITERATOR_TYPE, JSAsyncFromSyncIterator::kSize); |
| Map::SetPrototype(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<String> AsyncGeneratorFunction_string = |
| factory()->NewStringFromAsciiChecked("AsyncGeneratorFunction", TENURED); |
| |
| Handle<JSObject> async_generator_object_prototype = |
| factory()->NewJSObject(isolate()->object_function(), TENURED); |
| Handle<JSObject> async_generator_function_prototype = |
| factory()->NewJSObject(isolate()->object_function(), TENURED); |
| |
| // %AsyncGenerator% / %AsyncGeneratorFunction%.prototype |
| JSObject::ForceSetPrototype(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(async_generator_function_prototype, |
| factory()->prototype_string(), |
| async_generator_object_prototype, |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| JSObject::AddProperty(async_generator_function_prototype, |
| factory()->to_string_tag_symbol(), |
| AsyncGeneratorFunction_string, |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| // %AsyncGeneratorPrototype% |
| JSObject::ForceSetPrototype(async_generator_object_prototype, |
| async_iterator_prototype); |
| native_context()->set_initial_async_generator_prototype( |
| *async_generator_object_prototype); |
| |
| JSObject::AddProperty(async_generator_object_prototype, |
| factory()->to_string_tag_symbol(), |
| factory()->NewStringFromAsciiChecked("AsyncGenerator"), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| SimpleInstallFunction(async_generator_object_prototype, "next", |
| Builtins::kAsyncGeneratorPrototypeNext, 1, false); |
| SimpleInstallFunction(async_generator_object_prototype, "return", |
| Builtins::kAsyncGeneratorPrototypeReturn, 1, false); |
| SimpleInstallFunction(async_generator_object_prototype, "throw", |
| Builtins::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()->strict_function_map(), |
| async_generator_function_prototype, |
| "AsyncGeneratorFunction"); |
| native_context()->set_async_generator_function_map(*map); |
| |
| map = CreateNonConstructorMap(isolate()->strict_function_with_name_map(), |
| async_generator_function_prototype, |
| "AsyncGeneratorFunction with name"); |
| native_context()->set_async_generator_function_with_name_map(*map); |
| |
| map = CreateNonConstructorMap(strict_function_with_home_object_map_, |
| async_generator_function_prototype, |
| "AsyncGeneratorFunction with home object"); |
| native_context()->set_async_generator_function_with_home_object_map(*map); |
| |
| map = CreateNonConstructorMap( |
| strict_function_with_name_and_home_object_map_, |
| async_generator_function_prototype, |
| "AsyncGeneratorFunction with name and home object"); |
| native_context()->set_async_generator_function_with_name_and_home_object_map( |
| *map); |
| |
| Handle<JSFunction> object_function(native_context()->object_function()); |
| Handle<Map> async_generator_object_prototype_map = Map::Create(isolate(), 0); |
| Map::SetPrototype(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(), TENURED); |
| JSObject::ForceSetPrototype(async_function_prototype, empty); |
| |
| JSObject::AddProperty(async_function_prototype, |
| factory()->to_string_tag_symbol(), |
| factory()->NewStringFromAsciiChecked("AsyncFunction"), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| Handle<Map> map; |
| map = CreateNonConstructorMap( |
| isolate()->strict_function_without_prototype_map(), |
| async_function_prototype, "AsyncFunction"); |
| native_context()->set_async_function_map(*map); |
| |
| map = CreateNonConstructorMap(isolate()->method_with_name_map(), |
| async_function_prototype, |
| "AsyncFunction with name"); |
| native_context()->set_async_function_with_name_map(*map); |
| |
| map = CreateNonConstructorMap(isolate()->method_with_home_object_map(), |
| async_function_prototype, |
| "AsyncFunction with home object"); |
| native_context()->set_async_function_with_home_object_map(*map); |
| |
| map = CreateNonConstructorMap( |
| isolate()->method_with_name_and_home_object_map(), |
| async_function_prototype, "AsyncFunction with name and home object"); |
| native_context()->set_async_function_with_name_and_home_object_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_symbols(true); |
| native_context()->set_proxy_map(*proxy_map); |
| |
| Handle<Map> proxy_callable_map = Map::Copy(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(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(map, 2); |
| |
| { // proxy |
| Descriptor d = Descriptor::DataField(factory()->proxy_string(), |
| JSProxyRevocableResult::kProxyIndex, |
| NONE, Representation::Tagged()); |
| map->AppendDescriptor(&d); |
| } |
| { // revoke |
| Descriptor d = Descriptor::DataField(factory()->revoke_string(), |
| JSProxyRevocableResult::kRevokeIndex, |
| NONE, Representation::Tagged()); |
| map->AppendDescriptor(&d); |
| } |
| |
| Map::SetPrototype(map, isolate()->initial_object_prototype()); |
| map->SetConstructor(native_context()->object_function()); |
| |
| native_context()->set_proxy_revocable_result_map(*map); |
| } |
| } |
| |
| namespace { |
| void ReplaceAccessors(Handle<Map> map, Handle<String> name, |
| PropertyAttributes attributes, |
| Handle<AccessorPair> accessor_pair) { |
| DescriptorArray* descriptors = map->instance_descriptors(); |
| int idx = descriptors->SearchWithCache(map->GetIsolate(), *name, *map); |
| Descriptor d = Descriptor::AccessorConstant(name, accessor_pair, attributes); |
| descriptors->Replace(idx, &d); |
| } |
| } // 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()); |
| ReplaceAccessors(map, factory()->arguments_string(), rw_attribs, accessors); |
| ReplaceAccessors(map, factory()->caller_string(), rw_attribs, accessors); |
| } |
| |
| |
| static void AddToWeakNativeContextList(Context* context) { |
| DCHECK(context->IsNativeContext()); |
| Isolate* isolate = context->GetIsolate(); |
| Heap* heap = isolate->heap(); |
| #ifdef DEBUG |
| { // NOLINT |
| 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_WEAK_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(*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()); |
| Handle<ScopeInfo> scope_info = ScopeInfo::CreateGlobalThisBinding(isolate()); |
| Handle<JSFunction> closure(native_context()->closure()); |
| Handle<Context> context = factory()->NewScriptContext(closure, 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(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())); |
| Handle<Object> proto_template(global_constructor->prototype_template(), |
| 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<Code> code = BUILTIN_CODE(isolate(), Illegal); |
| Handle<JSObject> prototype = |
| factory()->NewFunctionPrototype(isolate()->object_function()); |
| NewFunctionArgs args = NewFunctionArgs::ForBuiltinWithPrototype( |
| name, code, prototype, JS_GLOBAL_OBJECT_TYPE, JSGlobalObject::kSize, 0, |
| Builtins::kIllegal, MUTABLE); |
| js_global_object_function = factory()->NewFunction(args); |
| #ifdef DEBUG |
| LookupIterator it(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())); |
| js_global_object_function = ApiNatives::CreateApiFunction( |
| isolate(), js_global_object_constructor, factory()->the_hole_value(), |
| ApiNatives::GlobalObjectType); |
| } |
| |
| 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_symbols( |
| 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()); |
| Handle<Code> code = BUILTIN_CODE(isolate(), Illegal); |
| NewFunctionArgs args = NewFunctionArgs::ForBuiltinWithPrototype( |
| name, code, factory()->the_hole_value(), JS_GLOBAL_PROXY_TYPE, |
| JSGlobalProxy::SizeWithEmbedderFields(0), 0, Builtins::kIllegal, |
| MUTABLE); |
| global_proxy_function = factory()->NewFunction(args); |
| } else { |
| Handle<ObjectTemplateInfo> data = |
| v8::Utils::OpenHandle(*global_proxy_template); |
| Handle<FunctionTemplateInfo> global_constructor( |
| FunctionTemplateInfo::cast(data->constructor())); |
| global_proxy_function = ApiNatives::CreateApiFunction( |
| isolate(), global_constructor, factory()->the_hole_value(), |
| ApiNatives::GlobalProxyType); |
| } |
| Handle<String> global_name = factory()->global_string(); |
| global_proxy_function->shared()->set_instance_class_name(*global_name); |
| global_proxy_function->initial_map()->set_is_access_check_needed(true); |
| global_proxy_function->initial_map()->set_has_hidden_prototype(true); |
| global_proxy_function->initial_map()->set_may_have_interesting_symbols(true); |
| native_context()->set_global_proxy_function(*global_proxy_function); |
| |
| // Set global_proxy.__proto__ to js_global after ConfigureGlobalObjects |
| // Return the global proxy. |
| |
| 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() == *global_proxy); |
| native_context()->set_global_proxy(*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()); |
| factory()->ReinitializeJSGlobalProxy(global_proxy, global_proxy_function); |
| Handle<JSObject> global_object( |
| JSObject::cast(native_context()->global_object())); |
| JSObject::ForceSetPrototype(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())); |
| native_context()->set_extension(*global_object); |
| native_context()->set_security_token(*global_object); |
| |
| TransferNamedProperties(global_object_from_snapshot, global_object); |
| TransferIndexedProperties(global_object_from_snapshot, global_object); |
| } |
| |
| static void InstallWithIntrinsicDefaultProto(Isolate* isolate, |
| Handle<JSFunction> function, |
| int context_index) { |
| Handle<Smi> index(Smi::FromInt(context_index), isolate); |
| JSObject::AddProperty( |
| function, isolate->factory()->native_context_index_symbol(), index, NONE); |
| isolate->native_context()->set(context_index, *function); |
| } |
| |
| static void InstallError(Isolate* isolate, Handle<JSObject> global, |
| Handle<String> name, int context_index) { |
| Factory* factory = isolate->factory(); |
| |
| Handle<JSFunction> error_fun = InstallFunction( |
| global, name, JS_ERROR_TYPE, JSObject::kHeaderSize, 0, |
| factory->the_hole_value(), Builtins::kErrorConstructor, DONT_ENUM); |
| error_fun->shared()->set_instance_class_name(*factory->Error_string()); |
| error_fun->shared()->DontAdaptArguments(); |
| error_fun->shared()->SetConstructStub( |
| *BUILTIN_CODE(isolate, ErrorConstructor)); |
| error_fun->shared()->set_length(1); |
| |
| if (context_index == Context::ERROR_FUNCTION_INDEX) { |
| SimpleInstallFunction(error_fun, "captureStackTrace", |
| Builtins::kErrorCaptureStackTrace, 2, false); |
| } |
| |
| InstallWithIntrinsicDefaultProto(isolate, error_fun, context_index); |
| |
| { |
| // Setup %XXXErrorPrototype%. |
| Handle<JSObject> prototype(JSObject::cast(error_fun->instance_prototype())); |
| |
| JSObject::AddProperty(prototype, factory->name_string(), name, DONT_ENUM); |
| JSObject::AddProperty(prototype, factory->message_string(), |
| factory->empty_string(), DONT_ENUM); |
| |
| if (context_index == Context::ERROR_FUNCTION_INDEX) { |
| Handle<JSFunction> to_string_fun = |
| SimpleInstallFunction(prototype, factory->toString_string(), |
| Builtins::kErrorPrototypeToString, 0, true); |
| isolate->native_context()->set_error_to_string(*to_string_fun); |
| isolate->native_context()->set_initial_error_prototype(*prototype); |
| } else { |
| DCHECK(isolate->native_context()->error_to_string()->IsJSFunction()); |
| |
| InstallFunction(prototype, isolate->error_to_string(), |
| factory->toString_string(), DONT_ENUM); |
| |
| Handle<JSFunction> global_error = isolate->error_function(); |
| CHECK(JSReceiver::SetPrototype(error_fun, global_error, false, |
| kThrowOnError) |
| .FromMaybe(false)); |
| CHECK(JSReceiver::SetPrototype(prototype, |
| handle(global_error->prototype(), isolate), |
| false, kThrowOnError) |
| .FromMaybe(false)); |
| } |
| } |
| |
| Handle<Map> initial_map(error_fun->initial_map()); |
| Map::EnsureDescriptorSlack(initial_map, 1); |
| |
| { |
| Handle<AccessorInfo> info = factory->error_stack_accessor(); |
| Descriptor d = Descriptor::AccessorConstant(handle(info->name(), isolate), |
| info, DONT_ENUM); |
| initial_map->AppendDescriptor(&d); |
| } |
| } |
| |
| namespace { |
| |
| void InstallMakeError(Isolate* isolate, int builtin_id, int context_index) { |
| Handle<Code> code(isolate->builtins()->builtin(builtin_id)); |
| NewFunctionArgs args = NewFunctionArgs::ForBuiltinWithPrototype( |
| isolate->factory()->empty_string(), code, |
| isolate->factory()->the_hole_value(), JS_OBJECT_TYPE, |
| JSObject::kHeaderSize, 0, builtin_id, MUTABLE); |
| |
| Handle<JSFunction> function = isolate->factory()->NewFunction(args); |
| function->shared()->DontAdaptArguments(); |
| isolate->native_context()->set(context_index, *function); |
| } |
| |
| } // namespace |
| |
| // 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, |
| GlobalContextType context_type) { |
| // --- N a t i v e C o n t e x t --- |
| // Use the empty function as closure (no scope info). |
| native_context()->set_closure(*empty_function); |
| native_context()->set_previous(nullptr); |
| // 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); |
| |
| Isolate* isolate = global_object->GetIsolate(); |
| Factory* factory = isolate->factory(); |
| |
| 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(global_object, object_name, object_function, |
| DONT_ENUM); |
| |
| SimpleInstallFunction(object_function, factory->assign_string(), |
| Builtins::kObjectAssign, 2, false); |
| SimpleInstallFunction(object_function, "getOwnPropertyDescriptor", |
| Builtins::kObjectGetOwnPropertyDescriptor, 2, false); |
| SimpleInstallFunction(object_function, |
| factory->getOwnPropertyDescriptors_string(), |
| Builtins::kObjectGetOwnPropertyDescriptors, 1, false); |
| SimpleInstallFunction(object_function, "getOwnPropertyNames", |
| Builtins::kObjectGetOwnPropertyNames, 1, false); |
| SimpleInstallFunction(object_function, "getOwnPropertySymbols", |
| Builtins::kObjectGetOwnPropertySymbols, 1, false); |
| SimpleInstallFunction(object_function, "is", |
| Builtins::kObjectIs, 2, true); |
| SimpleInstallFunction(object_function, "preventExtensions", |
| Builtins::kObjectPreventExtensions, 1, false); |
| SimpleInstallFunction(object_function, "seal", |
| Builtins::kObjectSeal, 1, false); |
| |
| Handle<JSFunction> object_create = |
| SimpleInstallFunction(object_function, factory->create_string(), |
| Builtins::kObjectCreate, 2, false); |
| native_context()->set_object_create(*object_create); |
| |
| Handle<JSFunction> object_define_properties = SimpleInstallFunction( |
| object_function, "defineProperties", |
| Builtins::kObjectDefineProperties, 2, true); |
| native_context()->set_object_define_properties(*object_define_properties); |
| |
| Handle<JSFunction> object_define_property = SimpleInstallFunction( |
| object_function, factory->defineProperty_string(), |
| Builtins::kObjectDefineProperty, 3, true); |
| native_context()->set_object_define_property(*object_define_property); |
| |
| SimpleInstallFunction(object_function, "freeze", Builtins::kObjectFreeze, 1, |
| false); |
| |
| Handle<JSFunction> object_get_prototype_of = SimpleInstallFunction( |
| object_function, "getPrototypeOf", Builtins::kObjectGetPrototypeOf, |
| 1, false); |
| native_context()->set_object_get_prototype_of(*object_get_prototype_of); |
| SimpleInstallFunction(object_function, "setPrototypeOf", |
| Builtins::kObjectSetPrototypeOf, 2, false); |
| |
| Handle<JSFunction> object_is_extensible = SimpleInstallFunction( |
| object_function, "isExtensible", Builtins::kObjectIsExtensible, |
| 1, false); |
| native_context()->set_object_is_extensible(*object_is_extensible); |
| |
| Handle<JSFunction> object_is_frozen = SimpleInstallFunction( |
| object_function, "isFrozen", Builtins::kObjectIsFrozen, 1, false); |
| native_context()->set_object_is_frozen(*object_is_frozen); |
| |
| Handle<JSFunction> object_is_sealed = SimpleInstallFunction( |
| object_function, "isSealed", Builtins::kObjectIsSealed, 1, false); |
| native_context()->set_object_is_sealed(*object_is_sealed); |
| |
| Handle<JSFunction> object_keys = SimpleInstallFunction( |
| object_function, "keys", Builtins::kObjectKeys, 1, true); |
| native_context()->set_object_keys(*object_keys); |
| SimpleInstallFunction(object_function, factory->entries_string(), |
| Builtins::kObjectEntries, 1, true); |
| SimpleInstallFunction(object_function, factory->values_string(), |
| Builtins::kObjectValues, 1, true); |
| |
| SimpleInstallFunction(isolate->initial_object_prototype(), |
| "__defineGetter__", Builtins::kObjectDefineGetter, 2, |
| true); |
| SimpleInstallFunction(isolate->initial_object_prototype(), |
| "__defineSetter__", Builtins::kObjectDefineSetter, 2, |
| true); |
| SimpleInstallFunction(isolate->initial_object_prototype(), "hasOwnProperty", |
| Builtins::kObjectPrototypeHasOwnProperty, 1, true); |
| SimpleInstallFunction(isolate->initial_object_prototype(), |
| "__lookupGetter__", Builtins::kObjectLookupGetter, 1, |
| true); |
| SimpleInstallFunction(isolate->initial_object_prototype(), |
| "__lookupSetter__", Builtins::kObjectLookupSetter, 1, |
| true); |
| SimpleInstallFunction(isolate->initial_object_prototype(), "isPrototypeOf", |
| Builtins::kObjectPrototypeIsPrototypeOf, 1, true); |
| SimpleInstallFunction( |
| isolate->initial_object_prototype(), "propertyIsEnumerable", |
| Builtins::kObjectPrototypePropertyIsEnumerable, 1, false); |
| Handle<JSFunction> object_to_string = SimpleInstallFunction( |
| isolate->initial_object_prototype(), factory->toString_string(), |
| Builtins::kObjectPrototypeToString, 0, true); |
| native_context()->set_object_to_string(*object_to_string); |
| Handle<JSFunction> object_value_of = SimpleInstallFunction( |
| isolate->initial_object_prototype(), "valueOf", |
| Builtins::kObjectPrototypeValueOf, 0, true); |
| native_context()->set_object_value_of(*object_value_of); |
| |
| SimpleInstallGetterSetter(isolate->initial_object_prototype(), |
| factory->proto_string(), |
| Builtins::kObjectPrototypeGetProto, |
| Builtins::kObjectPrototypeSetProto, DONT_ENUM); |
| |
| SimpleInstallFunction(isolate->initial_object_prototype(), "toLocaleString", |
| Builtins::kObjectPrototypeToLocaleString, 0, true); |
| } |
| |
| Handle<JSObject> global(native_context()->global_object()); |
| |
| { // --- F u n c t i o n --- |
| Handle<JSFunction> prototype = empty_function; |
| Handle<JSFunction> function_fun = InstallFunction( |
| global, "Function", JS_FUNCTION_TYPE, JSFunction::kSizeWithPrototype, 0, |
| prototype, Builtins::kFunctionConstructor); |
| // Function instances are sloppy by default. |
| function_fun->set_prototype_or_initial_map(*isolate->sloppy_function_map()); |
| function_fun->shared()->DontAdaptArguments(); |
| function_fun->shared()->SetConstructStub( |
| *BUILTIN_CODE(isolate, FunctionConstructor)); |
| function_fun->shared()->set_length(1); |
| InstallWithIntrinsicDefaultProto(isolate, function_fun, |
| Context::FUNCTION_FUNCTION_INDEX); |
| |
| // Setup the methods on the %FunctionPrototype%. |
| JSObject::AddProperty(prototype, factory->constructor_string(), |
| function_fun, DONT_ENUM); |
| SimpleInstallFunction(prototype, factory->apply_string(), |
| Builtins::kFunctionPrototypeApply, 2, false); |
| SimpleInstallFunction(prototype, factory->bind_string(), |
| Builtins::kFastFunctionPrototypeBind, 1, false); |
| SimpleInstallFunction(prototype, factory->call_string(), |
| Builtins::kFunctionPrototypeCall, 1, false); |
| SimpleInstallFunction(prototype, factory->toString_string(), |
| Builtins::kFunctionPrototypeToString, 0, false); |
| |
| // Install the @@hasInstance function. |
| Handle<JSFunction> has_instance = SimpleInstallFunction( |
| prototype, factory->has_instance_symbol(), "[Symbol.hasInstance]", |
| Builtins::kFunctionPrototypeHasInstance, 1, true, |
| static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY), |
| kFunctionHasInstance); |
| 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->strict_function_map()->SetConstructor(*function_fun); |
| isolate->strict_function_with_name_map()->SetConstructor(*function_fun); |
| strict_function_with_home_object_map_->SetConstructor(*function_fun); |
| strict_function_with_name_and_home_object_map_->SetConstructor( |
| *function_fun); |
| isolate->strict_function_with_readonly_prototype_map()->SetConstructor( |
| *function_fun); |
| |
| isolate->class_function_map()->SetConstructor(*function_fun); |
| } |
| } |
| |
| { // --- A s y n c F r o m S y n c I t e r a t o r |
| Handle<SharedFunctionInfo> info = SimpleCreateSharedFunctionInfo( |
| isolate, Builtins::kAsyncIteratorValueUnwrap, factory->empty_string(), |
| 1); |
| native_context()->set_async_iterator_value_unwrap_shared_fun(*info); |
| } |
| |
| { // --- A s y n c G e n e r a t o r --- |
| Handle<JSFunction> await_caught = |
| SimpleCreateFunction(isolate, factory->empty_string(), |
| Builtins::kAsyncGeneratorAwaitCaught, 1, false); |
| native_context()->set_async_generator_await_caught(*await_caught); |
| |
| Handle<JSFunction> await_uncaught = |
| SimpleCreateFunction(isolate, factory->empty_string(), |
| Builtins::kAsyncGeneratorAwaitUncaught, 1, false); |
| native_context()->set_async_generator_await_uncaught(*await_uncaught); |
| |
| Handle<SharedFunctionInfo> info = SimpleCreateSharedFunctionInfo( |
| isolate, Builtins::kAsyncGeneratorAwaitResolveClosure, |
| factory->empty_string(), 1); |
| native_context()->set_async_generator_await_resolve_shared_fun(*info); |
| |
| info = SimpleCreateSharedFunctionInfo( |
| isolate, Builtins::kAsyncGeneratorAwaitRejectClosure, |
| factory->empty_string(), 1); |
| native_context()->set_async_generator_await_reject_shared_fun(*info); |
| |
| info = SimpleCreateSharedFunctionInfo( |
| isolate, Builtins::kAsyncGeneratorYieldResolveClosure, |
| factory->empty_string(), 1); |
| native_context()->set_async_generator_yield_resolve_shared_fun(*info); |
| |
| info = SimpleCreateSharedFunctionInfo( |
| isolate, Builtins::kAsyncGeneratorReturnResolveClosure, |
| factory->empty_string(), 1); |
| native_context()->set_async_generator_return_resolve_shared_fun(*info); |
| |
| info = SimpleCreateSharedFunctionInfo( |
| isolate, Builtins::kAsyncGeneratorReturnClosedResolveClosure, |
| factory->empty_string(), 1); |
| native_context()->set_async_generator_return_closed_resolve_shared_fun( |
| *info); |
| |
| info = SimpleCreateSharedFunctionInfo( |
| isolate, Builtins::kAsyncGeneratorReturnClosedRejectClosure, |
| factory->empty_string(), 1); |
| native_context()->set_async_generator_return_closed_reject_shared_fun( |
| *info); |
| } |
| |
| { // --- A r r a y --- |
| Handle<JSFunction> array_function = InstallFunction( |
| global, "Array", JS_ARRAY_TYPE, JSArray::kSize, 0, |
| isolate->initial_object_prototype(), Builtins::kArrayConstructor); |
| array_function->shared()->DontAdaptArguments(); |
| array_function->shared()->set_builtin_function_id(kArrayConstructor); |
| |
| // 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()); |
| |
| // This assert protects an optimization in |
| // HGraphBuilder::JSArrayBuilder::EmitMapCode() |
| DCHECK(initial_map->elements_kind() == GetInitialFastElementsKind()); |
| Map::EnsureDescriptorSlack(initial_map, 1); |
| |
| PropertyAttributes attribs = static_cast<PropertyAttributes>( |
| DONT_ENUM | DONT_DELETE); |
| |
| { // Add length. |
| Descriptor d = Descriptor::AccessorConstant( |
| factory->length_string(), factory->array_length_accessor(), attribs); |
| initial_map->AppendDescriptor(&d); |
| } |
| |
| InstallWithIntrinsicDefaultProto(isolate, array_function, |
| Context::ARRAY_FUNCTION_INDEX); |
| InstallSpeciesGetter(array_function); |
| |
| // Cache the array maps, needed by ArrayConstructorStub |
| CacheInitialJSArrayMaps(native_context(), initial_map); |
| ArrayConstructorStub array_constructor_stub(isolate); |
| Handle<Code> code = array_constructor_stub.GetCode(); |
| array_function->shared()->SetConstructStub(*code); |
| |
| // 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 when constant field tracking is enabled. |
| Handle<JSArray> proto = |
| factory->NewJSArray(0, TERMINAL_FAST_ELEMENTS_KIND, TENURED); |
| JSFunction::SetPrototype(array_function, proto); |
| native_context()->set_initial_array_prototype(*proto); |
| |
| Handle<JSFunction> is_arraylike = SimpleInstallFunction( |
| array_function, "isArray", Builtins::kArrayIsArray, 1, true); |
| native_context()->set_is_arraylike(*is_arraylike); |
| |
| JSObject::AddProperty(proto, factory->constructor_string(), array_function, |
| DONT_ENUM); |
| |
| SimpleInstallFunction(proto, "concat", Builtins::kArrayConcat, 1, false); |
| SimpleInstallFunction(proto, "find", Builtins::kArrayPrototypeFind, 1, |
| false); |
| SimpleInstallFunction(proto, "findIndex", |
| Builtins::kArrayPrototypeFindIndex, 1, false); |
| SimpleInstallFunction(proto, "pop", Builtins::kArrayPrototypePop, 0, false); |
| SimpleInstallFunction(proto, "push", Builtins::kArrayPrototypePush, 1, |
| false); |
| SimpleInstallFunction(proto, "shift", Builtins::kArrayPrototypeShift, 0, |
| false); |
| SimpleInstallFunction(proto, "unshift", Builtins::kArrayUnshift, 1, false); |
| if (FLAG_enable_experimental_builtins) { |
| SimpleInstallFunction(proto, "slice", Builtins::kArrayPrototypeSlice, 2, |
| false); |
| } else { |
| SimpleInstallFunction(proto, "slice", Builtins::kArraySlice, 2, false); |
| } |
| SimpleInstallFunction(proto, "splice", Builtins::kArraySplice, 2, false); |
| SimpleInstallFunction(proto, "includes", Builtins::kArrayIncludes, 1, |
| false); |
| SimpleInstallFunction(proto, "indexOf", Builtins::kArrayIndexOf, 1, false); |
| SimpleInstallFunction(proto, "keys", Builtins::kArrayPrototypeKeys, 0, true, |
| kArrayKeys); |
| SimpleInstallFunction(proto, "entries", Builtins::kArrayPrototypeEntries, 0, |
| true, kArrayEntries); |
| SimpleInstallFunction(proto, factory->iterator_symbol(), "values", |
| Builtins::kArrayPrototypeValues, 0, true, DONT_ENUM, |
| kArrayValues); |
| SimpleInstallFunction(proto, "forEach", Builtins::kArrayForEach, 1, false); |
| SimpleInstallFunction(proto, "filter", Builtins::kArrayFilter, 1, false); |
| SimpleInstallFunction(proto, "map", Builtins::kArrayMap, 1, false); |
| SimpleInstallFunction(proto, "every", Builtins::kArrayEvery, 1, false); |
| SimpleInstallFunction(proto, "some", Builtins::kArraySome, 1, false); |
| SimpleInstallFunction(proto, "reduce", Builtins::kArrayReduce, 1, false); |
| SimpleInstallFunction(proto, "reduceRight", Builtins::kArrayReduceRight, 1, |
| false); |
| } |
| |
| { // --- A r r a y I t e r a t o r --- |
| Handle<JSObject> iterator_prototype( |
| native_context()->initial_iterator_prototype()); |
| |
| Handle<JSObject> array_iterator_prototype = |
| factory->NewJSObject(isolate->object_function(), TENURED); |
| JSObject::ForceSetPrototype(array_iterator_prototype, iterator_prototype); |
| |
| JSObject::AddProperty( |
| array_iterator_prototype, factory->to_string_tag_symbol(), |
| factory->ArrayIterator_string(), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| SimpleInstallFunction(array_iterator_prototype, "next", |
| Builtins::kArrayIteratorPrototypeNext, 0, true, |
| kArrayIteratorNext); |
| |
| Handle<JSFunction> array_iterator_function = CreateFunction( |
| isolate, factory->ArrayIterator_string(), |
| JS_FAST_ARRAY_VALUE_ITERATOR_TYPE, JSArrayIterator::kSize, 0, |
| array_iterator_prototype, Builtins::kIllegal); |
| array_iterator_function->shared()->set_native(false); |
| array_iterator_function->shared()->set_instance_class_name( |
| isolate->heap()->ArrayIterator_string()); |
| |
| native_context()->set_initial_array_iterator_prototype( |
| *array_iterator_prototype); |
| native_context()->set_initial_array_iterator_prototype_map( |
| array_iterator_prototype->map()); |
| |
| Handle<Map> initial_map(array_iterator_function->initial_map(), isolate); |
| |
| #define ARRAY_ITERATOR_LIST(V) \ |
| V(TYPED_ARRAY, KEY, typed_array, key) \ |
| V(FAST_ARRAY, KEY, fast_array, key) \ |
| V(GENERIC_ARRAY, KEY, array, key) \ |
| V(UINT8_ARRAY, KEY_VALUE, uint8_array, key_value) \ |
| V(INT8_ARRAY, KEY_VALUE, int8_array, key_value) \ |
| V(UINT16_ARRAY, KEY_VALUE, uint16_array, key_value) \ |
| V(INT16_ARRAY, KEY_VALUE, int16_array, key_value) \ |
| V(UINT32_ARRAY, KEY_VALUE, uint32_array, key_value) \ |
| V(INT32_ARRAY, KEY_VALUE, int32_array, key_value) \ |
| V(FLOAT32_ARRAY, KEY_VALUE, float32_array, key_value) \ |
| V(FLOAT64_ARRAY, KEY_VALUE, float64_array, key_value) \ |
| V(UINT8_CLAMPED_ARRAY, KEY_VALUE, uint8_clamped_array, key_value) \ |
| V(FAST_SMI_ARRAY, KEY_VALUE, fast_smi_array, key_value) \ |
| V(FAST_HOLEY_SMI_ARRAY, KEY_VALUE, fast_holey_smi_array, key_value) \ |
| V(FAST_ARRAY, KEY_VALUE, fast_array, key_value) \ |
| V(FAST_HOLEY_ARRAY, KEY_VALUE, fast_holey_array, key_value) \ |
| V(FAST_DOUBLE_ARRAY, KEY_VALUE, fast_double_array, key_value) \ |
| V(FAST_HOLEY_DOUBLE_ARRAY, KEY_VALUE, fast_holey_double_array, key_value) \ |
| V(GENERIC_ARRAY, KEY_VALUE, array, key_value) \ |
| V(UINT8_ARRAY, VALUE, uint8_array, value) \ |
| V(INT8_ARRAY, VALUE, int8_array, value) \ |
| V(UINT16_ARRAY, VALUE, uint16_array, value) \ |
| V(INT16_ARRAY, VALUE, int16_array, value) \ |
| V(UINT32_ARRAY, VALUE, uint32_array, value) \ |
| V(INT32_ARRAY, VALUE, int32_array, value) \ |
| V(FLOAT32_ARRAY, VALUE, float32_array, value) \ |
| V(FLOAT64_ARRAY, VALUE, float64_array, value) \ |
| V(UINT8_CLAMPED_ARRAY, VALUE, uint8_clamped_array, value) \ |
| V(FAST_SMI_ARRAY, VALUE, fast_smi_array, value) \ |
| V(FAST_HOLEY_SMI_ARRAY, VALUE, fast_holey_smi_array, value) \ |
| V(FAST_ARRAY, VALUE, fast_array, value) \ |
| V(FAST_HOLEY_ARRAY, VALUE, fast_holey_array, value) \ |
| V(FAST_DOUBLE_ARRAY, VALUE, fast_double_array, value) \ |
| V(FAST_HOLEY_DOUBLE_ARRAY, VALUE, fast_holey_double_array, value) \ |
| V(GENERIC_ARRAY, VALUE, array, value) |
| |
| #define CREATE_ARRAY_ITERATOR_MAP(PREFIX, SUFFIX, prefix, suffix) \ |
| do { \ |
| const InstanceType type = JS_##PREFIX##_##SUFFIX##_ITERATOR_TYPE; \ |
| Handle<Map> map = \ |
| Map::Copy(initial_map, "JS_" #PREFIX "_" #SUFFIX "_ITERATOR_TYPE"); \ |
| map->set_instance_type(type); \ |
| native_context()->set_##prefix##_##suffix##_iterator_map(*map); \ |
| } while (0); |
| |
| ARRAY_ITERATOR_LIST(CREATE_ARRAY_ITERATOR_MAP) |
| |
| #undef CREATE_ARRAY_ITERATOR_MAP |
| #undef ARRAY_ITERATOR_LIST |
| } |
| |
| { // --- N u m b e r --- |
| Handle<JSFunction> number_fun = InstallFunction( |
| global, "Number", JS_VALUE_TYPE, JSValue::kSize, 0, |
| isolate->initial_object_prototype(), Builtins::kNumberConstructor); |
| number_fun->shared()->set_builtin_function_id(kNumberConstructor); |
| number_fun->shared()->DontAdaptArguments(); |
| number_fun->shared()->SetConstructStub( |
| *BUILTIN_CODE(isolate, NumberConstructor_ConstructStub)); |
| number_fun->shared()->set_length(1); |
| InstallWithIntrinsicDefaultProto(isolate, number_fun, |
| Context::NUMBER_FUNCTION_INDEX); |
| |
| // Create the %NumberPrototype% |
| Handle<JSValue> prototype = |
| Handle<JSValue>::cast(factory->NewJSObject(number_fun, TENURED)); |
| prototype->set_value(Smi::kZero); |
| JSFunction::SetPrototype(number_fun, prototype); |
| |
| // Install the "constructor" property on the {prototype}. |
| JSObject::AddProperty(prototype, factory->constructor_string(), number_fun, |
| DONT_ENUM); |
| |
| // Install the Number.prototype methods. |
| SimpleInstallFunction(prototype, "toExponential", |
| Builtins::kNumberPrototypeToExponential, 1, false); |
| SimpleInstallFunction(prototype, "toFixed", |
| Builtins::kNumberPrototypeToFixed, 1, false); |
| SimpleInstallFunction(prototype, "toPrecision", |
| Builtins::kNumberPrototypeToPrecision, 1, false); |
| SimpleInstallFunction(prototype, "toString", |
| Builtins::kNumberPrototypeToString, 1, false); |
| SimpleInstallFunction(prototype, "valueOf", |
| Builtins::kNumberPrototypeValueOf, 0, true); |
| |
| // Install Intl fallback functions. |
| SimpleInstallFunction(prototype, "toLocaleString", |
| Builtins::kNumberPrototypeToLocaleString, 0, false); |
| |
| // Install the Number functions. |
| SimpleInstallFunction(number_fun, "isFinite", Builtins::kNumberIsFinite, 1, |
| true); |
| SimpleInstallFunction(number_fun, "isInteger", Builtins::kNumberIsInteger, |
| 1, true); |
| SimpleInstallFunction(number_fun, "isNaN", Builtins::kNumberIsNaN, 1, true); |
| SimpleInstallFunction(number_fun, "isSafeInteger", |
| Builtins::kNumberIsSafeInteger, 1, true); |
| |
| // Install Number.parseFloat and Global.parseFloat. |
| Handle<JSFunction> parse_float_fun = SimpleInstallFunction( |
| number_fun, "parseFloat", Builtins::kNumberParseFloat, 1, true); |
| JSObject::AddProperty(global_object, |
| factory->NewStringFromAsciiChecked("parseFloat"), |
| parse_float_fun, DONT_ENUM); |
| |
| // Install Number.parseInt and Global.parseInt. |
| Handle<JSFunction> parse_int_fun = SimpleInstallFunction( |
| number_fun, "parseInt", Builtins::kNumberParseInt, 2, true); |
| JSObject::AddProperty(global_object, |
| factory->NewStringFromAsciiChecked("parseInt"), |
| parse_int_fun, DONT_ENUM); |
| |
| // Install Number constants |
| double kMaxValue = 1.7976931348623157e+308; |
| double kMinValue = 5e-324; |
| |
| double kMaxSafeInt = 9007199254740991; |
| double kMinSafeInt = -9007199254740991; |
| double kEPS = 2.220446049250313e-16; |
| |
| Handle<Object> infinity = factory->infinity_value(); |
| Handle<Object> nan = factory->nan_value(); |
| Handle<String> nan_name = factory->NewStringFromAsciiChecked("NaN"); |
| |
| JSObject::AddProperty( |
| number_fun, factory->NewStringFromAsciiChecked("MAX_VALUE"), |
| factory->NewNumber(kMaxValue), |
| static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY)); |
| JSObject::AddProperty( |
| number_fun, factory->NewStringFromAsciiChecked("MIN_VALUE"), |
| factory->NewNumber(kMinValue), |
| static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY)); |
| JSObject::AddProperty( |
| number_fun, nan_name, nan, |
| static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY)); |
| JSObject::AddProperty( |
| number_fun, factory->NewStringFromAsciiChecked("NEGATIVE_INFINITY"), |
| factory->NewNumber(-V8_INFINITY), |
| static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY)); |
| JSObject::AddProperty( |
| number_fun, factory->NewStringFromAsciiChecked("POSITIVE_INFINITY"), |
| infinity, |
| static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY)); |
| JSObject::AddProperty( |
| number_fun, factory->NewStringFromAsciiChecked("MAX_SAFE_INTEGER"), |
| factory->NewNumber(kMaxSafeInt), |
| static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY)); |
| JSObject::AddProperty( |
| number_fun, factory->NewStringFromAsciiChecked("MIN_SAFE_INTEGER"), |
| factory->NewNumber(kMinSafeInt), |
| static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY)); |
| JSObject::AddProperty( |
| number_fun, factory->NewStringFromAsciiChecked("EPSILON"), |
| factory->NewNumber(kEPS), |
| static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY)); |
| |
| JSObject::AddProperty( |
| global, factory->NewStringFromAsciiChecked("Infinity"), infinity, |
| static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY)); |
| JSObject::AddProperty( |
| global, nan_name, nan, |
| static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY)); |
| JSObject::AddProperty( |
| global, factory->NewStringFromAsciiChecked("undefined"), |
| factory->undefined_value(), |
| static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY)); |
| } |
| |
| { // --- B o o l e a n --- |
| Handle<JSFunction> boolean_fun = InstallFunction( |
| global, "Boolean", JS_VALUE_TYPE, JSValue::kSize, 0, |
| isolate->initial_object_prototype(), Builtins::kBooleanConstructor); |
| boolean_fun->shared()->DontAdaptArguments(); |
| boolean_fun->shared()->SetConstructStub( |
| *BUILTIN_CODE(isolate, BooleanConstructor_ConstructStub)); |
| boolean_fun->shared()->set_length(1); |
| InstallWithIntrinsicDefaultProto(isolate, boolean_fun, |
| Context::BOOLEAN_FUNCTION_INDEX); |
| |
| // Create the %BooleanPrototype% |
| Handle<JSValue> prototype = |
| Handle<JSValue>::cast(factory->NewJSObject(boolean_fun, TENURED)); |
| prototype->set_value(isolate->heap()->false_value()); |
| JSFunction::SetPrototype(boolean_fun, prototype); |
| |
| // Install the "constructor" property on the {prototype}. |
| JSObject::AddProperty(prototype, factory->constructor_string(), boolean_fun, |
| DONT_ENUM); |
| |
| // Install the Boolean.prototype methods. |
| SimpleInstallFunction(prototype, "toString", |
| Builtins::kBooleanPrototypeToString, 0, true); |
| SimpleInstallFunction(prototype, "valueOf", |
| Builtins::kBooleanPrototypeValueOf, 0, true); |
| } |
| |
| { // --- S t r i n g --- |
| Handle<JSFunction> string_fun = InstallFunction( |
| global, "String", JS_VALUE_TYPE, JSValue::kSize, 0, |
| isolate->initial_object_prototype(), Builtins::kStringConstructor); |
| string_fun->shared()->set_builtin_function_id(kStringConstructor); |
| string_fun->shared()->SetConstructStub( |
| *BUILTIN_CODE(isolate, StringConstructor_ConstructStub)); |
| 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()); |
| string_map->set_elements_kind(FAST_STRING_WRAPPER_ELEMENTS); |
| Map::EnsureDescriptorSlack(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(&d); |
| } |
| |
| // Install the String.fromCharCode function. |
| SimpleInstallFunction(string_fun, "fromCharCode", |
| Builtins::kStringFromCharCode, 1, false); |
| |
| // Install the String.fromCodePoint function. |
| SimpleInstallFunction(string_fun, "fromCodePoint", |
| Builtins::kStringFromCodePoint, 1, false); |
| |
| // Install the String.raw function. |
| SimpleInstallFunction(string_fun, "raw", Builtins::kStringRaw, 1, false); |
| |
| // Create the %StringPrototype% |
| Handle<JSValue> prototype = |
| Handle<JSValue>::cast(factory->NewJSObject(string_fun, TENURED)); |
| prototype->set_value(isolate->heap()->empty_string()); |
| JSFunction::SetPrototype(string_fun, prototype); |
| native_context()->set_initial_string_prototype(*prototype); |
| |
| // Install the "constructor" property on the {prototype}. |
| JSObject::AddProperty(prototype, factory->constructor_string(), string_fun, |
| DONT_ENUM); |
| |
| // Install the String.prototype methods. |
| SimpleInstallFunction(prototype, "anchor", Builtins::kStringPrototypeAnchor, |
| 1, true); |
| SimpleInstallFunction(prototype, "big", Builtins::kStringPrototypeBig, 0, |
| true); |
| SimpleInstallFunction(prototype, "blink", Builtins::kStringPrototypeBlink, |
| 0, true); |
| SimpleInstallFunction(prototype, "bold", Builtins::kStringPrototypeBold, 0, |
| true); |
| SimpleInstallFunction(prototype, "charAt", Builtins::kStringPrototypeCharAt, |
| 1, true); |
| SimpleInstallFunction(prototype, "charCodeAt", |
| Builtins::kStringPrototypeCharCodeAt, 1, true); |
| SimpleInstallFunction(prototype, "codePointAt", |
| Builtins::kStringPrototypeCodePointAt, 1, true); |
| SimpleInstallFunction(prototype, "concat", Builtins::kStringPrototypeConcat, |
| 1, false); |
| SimpleInstallFunction(prototype, "endsWith", |
| Builtins::kStringPrototypeEndsWith, 1, false); |
| SimpleInstallFunction(prototype, "fontcolor", |
| Builtins::kStringPrototypeFontcolor, 1, true); |
| SimpleInstallFunction(prototype, "fontsize", |
| Builtins::kStringPrototypeFontsize, 1, true); |
| SimpleInstallFunction(prototype, "fixed", Builtins::kStringPrototypeFixed, |
| 0, true); |
| SimpleInstallFunction(prototype, "includes", |
| Builtins::kStringPrototypeIncludes, 1, false); |
| SimpleInstallFunction(prototype, "indexOf", |
| Builtins::kStringPrototypeIndexOf, 1, false); |
| SimpleInstallFunction(prototype, "italics", |
| Builtins::kStringPrototypeItalics, 0, true); |
| SimpleInstallFunction(prototype, "lastIndexOf", |
| Builtins::kStringPrototypeLastIndexOf, 1, false); |
| SimpleInstallFunction(prototype, "link", Builtins::kStringPrototypeLink, 1, |
| true); |
| SimpleInstallFunction(prototype, "localeCompare", |
| Builtins::kStringPrototypeLocaleCompare, 1, true); |
| SimpleInstallFunction(prototype, "match", Builtins::kStringPrototypeMatch, |
| 1, true); |
| #ifdef V8_INTL_SUPPORT |
| SimpleInstallFunction(prototype, "normalize", |
| Builtins::kStringPrototypeNormalizeIntl, 0, false); |
| #else |
| SimpleInstallFunction(prototype, "normalize", |
| Builtins::kStringPrototypeNormalize, 0, false); |
| #endif // V8_INTL_SUPPORT |
| SimpleInstallFunction(prototype, "padEnd", Builtins::kStringPrototypePadEnd, |
| 1, false); |
| SimpleInstallFunction(prototype, "padStart", |
| Builtins::kStringPrototypePadStart, 1, false); |
| SimpleInstallFunction(prototype, "repeat", Builtins::kStringPrototypeRepeat, |
| 1, true); |
| SimpleInstallFunction(prototype, "replace", |
| Builtins::kStringPrototypeReplace, 2, true); |
| SimpleInstallFunction(prototype, "search", Builtins::kStringPrototypeSearch, |
| 1, true); |
| SimpleInstallFunction(prototype, "slice", Builtins::kStringPrototypeSlice, |
| 2, false); |
| SimpleInstallFunction(prototype, "small", Builtins::kStringPrototypeSmall, |
| 0, true); |
| SimpleInstallFunction(prototype, "split", Builtins::kStringPrototypeSplit, |
| 2, false); |
| SimpleInstallFunction(prototype, "strike", Builtins::kStringPrototypeStrike, |
| 0, true); |
| SimpleInstallFunction(prototype, "sub", Builtins::kStringPrototypeSub, 0, |
| true); |
| SimpleInstallFunction(prototype, "substr", Builtins::kStringPrototypeSubstr, |
| 2, false); |
| SimpleInstallFunction(prototype, "substring", |
| Builtins::kStringPrototypeSubstring, 2, false); |
| SimpleInstallFunction(prototype, "sup", Builtins::kStringPrototypeSup, 0, |
| true); |
| SimpleInstallFunction(prototype, "startsWith", |
| Builtins::kStringPrototypeStartsWith, 1, false); |
| SimpleInstallFunction(prototype, "toString", |
| Builtins::kStringPrototypeToString, 0, true); |
| SimpleInstallFunction(prototype, "trim", Builtins::kStringPrototypeTrim, 0, |
| false); |
| SimpleInstallFunction(prototype, "trimLeft", |
| Builtins::kStringPrototypeTrimLeft, 0, false); |
| SimpleInstallFunction(prototype, "trimRight", |
| Builtins::kStringPrototypeTrimRight, 0, false); |
| #ifdef V8_INTL_SUPPORT |
| SimpleInstallFunction(prototype, "toLowerCase", |
| Builtins::kStringPrototypeToLowerCaseIntl, 0, true); |
| SimpleInstallFunction(prototype, "toUpperCase", |
| Builtins::kStringPrototypeToUpperCaseIntl, 0, false); |
| #else |
| SimpleInstallFunction(prototype, "toLocaleLowerCase", |
| Builtins::kStringPrototypeToLocaleLowerCase, 0, |
| false); |
| SimpleInstallFunction(prototype, "toLocaleUpperCase", |
| Builtins::kStringPrototypeToLocaleUpperCase, 0, |
| false); |
| SimpleInstallFunction(prototype, "toLowerCase", |
| Builtins::kStringPrototypeToLowerCase, 0, false); |
| SimpleInstallFunction(prototype, "toUpperCase", |
| Builtins::kStringPrototypeToUpperCase, 0, false); |
| #endif |
| SimpleInstallFunction(prototype, "valueOf", |
| Builtins::kStringPrototypeValueOf, 0, true); |
| |
| SimpleInstallFunction(prototype, factory->iterator_symbol(), |
| "[Symbol.iterator]", |
| Builtins::kStringPrototypeIterator, 0, true, |
| DONT_ENUM, kStringIterator); |
| } |
| |
| { // --- S t r i n g I t e r a t o r --- |
| Handle<JSObject> iterator_prototype( |
| native_context()->initial_iterator_prototype()); |
| |
| Handle<JSObject> string_iterator_prototype = |
| factory->NewJSObject(isolate->object_function(), TENURED); |
| JSObject::ForceSetPrototype(string_iterator_prototype, iterator_prototype); |
| |
| JSObject::AddProperty( |
| string_iterator_prototype, factory->to_string_tag_symbol(), |
| factory->NewStringFromAsciiChecked("String Iterator"), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| SimpleInstallFunction(string_iterator_prototype, "next", |
| Builtins::kStringIteratorPrototypeNext, 0, true, |
| kStringIteratorNext); |
| |
| Handle<JSFunction> string_iterator_function = CreateFunction( |
| isolate, factory->NewStringFromAsciiChecked("StringIterator"), |
| JS_STRING_ITERATOR_TYPE, JSStringIterator::kSize, 0, |
| string_iterator_prototype, Builtins::kIllegal); |
| string_iterator_function->shared()->set_native(false); |
| native_context()->set_string_iterator_map( |
| string_iterator_function->initial_map()); |
| } |
| |
| { // --- S y m b o l --- |
| Handle<JSFunction> symbol_fun = InstallFunction( |
| global, "Symbol", JS_VALUE_TYPE, JSValue::kSize, 0, |
| factory->the_hole_value(), Builtins::kSymbolConstructor); |
| symbol_fun->shared()->set_builtin_function_id(kSymbolConstructor); |
| symbol_fun->shared()->SetConstructStub( |
| *BUILTIN_CODE(isolate, SymbolConstructor_ConstructStub)); |
| 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(symbol_fun, "for", Builtins::kSymbolFor, 1, false); |
| SimpleInstallFunction(symbol_fun, "keyFor", Builtins::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, "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())); |
| |
| // Install the @@toStringTag property on the {prototype}. |
| JSObject::AddProperty( |
| prototype, factory->to_string_tag_symbol(), |
| factory->NewStringFromAsciiChecked("Symbol"), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| // Install the Symbol.prototype methods. |
| SimpleInstallFunction(prototype, "toString", |
| Builtins::kSymbolPrototypeToString, 0, true); |
| SimpleInstallFunction(prototype, "valueOf", |
| Builtins::kSymbolPrototypeValueOf, 0, true); |
| |
| // Install the @@toPrimitive function. |
| Handle<JSFunction> to_primitive = InstallFunction( |
| prototype, factory->to_primitive_symbol(), JS_OBJECT_TYPE, |
| JSObject::kHeaderSize, 0, MaybeHandle<JSObject>(), |
| Builtins::kSymbolPrototypeToPrimitive, |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| // Set the expected parameters for @@toPrimitive to 1; required by builtin. |
| to_primitive->shared()->set_internal_formal_parameter_count(1); |
| |
| // Set the length for the function to satisfy ECMA-262. |
| to_primitive->shared()->set_length(1); |
| } |
| |
| { // --- D a t e --- |
| Handle<JSFunction> date_fun = |
| InstallFunction(global, "Date", JS_DATE_TYPE, JSDate::kSize, 0, |
| factory->the_hole_value(), Builtins::kDateConstructor); |
| InstallWithIntrinsicDefaultProto(isolate, date_fun, |
| Context::DATE_FUNCTION_INDEX); |
| date_fun->shared()->SetConstructStub( |
| *BUILTIN_CODE(isolate, DateConstructor_ConstructStub)); |
| date_fun->shared()->set_length(7); |
| date_fun->shared()->DontAdaptArguments(); |
| |
| // Install the Date.now, Date.parse and Date.UTC functions. |
| SimpleInstallFunction(date_fun, "now", Builtins::kDateNow, 0, false); |
| SimpleInstallFunction(date_fun, "parse", Builtins::kDateParse, 1, false); |
| SimpleInstallFunction(date_fun, "UTC", Builtins::kDateUTC, 7, false); |
| |
| // Setup %DatePrototype%. |
| Handle<JSObject> prototype(JSObject::cast(date_fun->instance_prototype())); |
| |
| // Install the Date.prototype methods. |
| SimpleInstallFunction(prototype, "toString", |
| Builtins::kDatePrototypeToString, 0, false); |
| SimpleInstallFunction(prototype, "toDateString", |
| Builtins::kDatePrototypeToDateString, 0, false); |
| SimpleInstallFunction(prototype, "toTimeString", |
| Builtins::kDatePrototypeToTimeString, 0, false); |
| SimpleInstallFunction(prototype, "toISOString", |
| Builtins::kDatePrototypeToISOString, 0, false); |
| Handle<JSFunction> to_utc_string = |
| SimpleInstallFunction(prototype, "toUTCString", |
| Builtins::kDatePrototypeToUTCString, 0, false); |
| InstallFunction(prototype, to_utc_string, |
| factory->InternalizeUtf8String("toGMTString"), DONT_ENUM); |
| SimpleInstallFunction(prototype, "getDate", Builtins::kDatePrototypeGetDate, |
| 0, true); |
| SimpleInstallFunction(prototype, "setDate", Builtins::kDatePrototypeSetDate, |
| 1, false); |
| SimpleInstallFunction(prototype, "getDay", Builtins::kDatePrototypeGetDay, |
| 0, true); |
| SimpleInstallFunction(prototype, "getFullYear", |
| Builtins::kDatePrototypeGetFullYear, 0, true); |
| SimpleInstallFunction(prototype, "setFullYear", |
| Builtins::kDatePrototypeSetFullYear, 3, false); |
| SimpleInstallFunction(prototype, "getHours", |
| Builtins::kDatePrototypeGetHours, 0, true); |
| SimpleInstallFunction(prototype, "setHours", |
| Builtins::kDatePrototypeSetHours, 4, false); |
| SimpleInstallFunction(prototype, "getMilliseconds", |
| Builtins::kDatePrototypeGetMilliseconds, 0, true); |
| SimpleInstallFunction(prototype, "setMilliseconds", |
| Builtins::kDatePrototypeSetMilliseconds, 1, false); |
| SimpleInstallFunction(prototype, "getMinutes", |
| Builtins::kDatePrototypeGetMinutes, 0, true); |
| SimpleInstallFunction(prototype, "setMinutes", |
| Builtins::kDatePrototypeSetMinutes, 3, false); |
| SimpleInstallFunction(prototype, "getMonth", |
| Builtins::kDatePrototypeGetMonth, 0, true); |
| SimpleInstallFunction(prototype, "setMonth", |
| Builtins::kDatePrototypeSetMonth, 2, false); |
| SimpleInstallFunction(prototype, "getSeconds", |
| Builtins::kDatePrototypeGetSeconds, 0, true); |
| SimpleInstallFunction(prototype, "setSeconds", |
| Builtins::kDatePrototypeSetSeconds, 2, false); |
| SimpleInstallFunction(prototype, "getTime", Builtins::kDatePrototypeGetTime, |
| 0, true); |
| SimpleInstallFunction(prototype, "setTime", Builtins::kDatePrototypeSetTime, |
| 1, false); |
| SimpleInstallFunction(prototype, "getTimezoneOffset", |
| Builtins::kDatePrototypeGetTimezoneOffset, 0, true); |
| SimpleInstallFunction(prototype, "getUTCDate", |
| Builtins::kDatePrototypeGetUTCDate, 0, true); |
| SimpleInstallFunction(prototype, "setUTCDate", |
| Builtins::kDatePrototypeSetUTCDate, 1, false); |
| SimpleInstallFunction(prototype, "getUTCDay", |
| Builtins::kDatePrototypeGetUTCDay, 0, true); |
| SimpleInstallFunction(prototype, "getUTCFullYear", |
| Builtins::kDatePrototypeGetUTCFullYear, 0, true); |
| SimpleInstallFunction(prototype, "setUTCFullYear", |
| Builtins::kDatePrototypeSetUTCFullYear, 3, false); |
| SimpleInstallFunction(prototype, "getUTCHours", |
| Builtins::kDatePrototypeGetUTCHours, 0, true); |
| SimpleInstallFunction(prototype, "setUTCHours", |
| Builtins::kDatePrototypeSetUTCHours, 4, false); |
| SimpleInstallFunction(prototype, "getUTCMilliseconds", |
| Builtins::kDatePrototypeGetUTCMilliseconds, 0, true); |
| SimpleInstallFunction(prototype, "setUTCMilliseconds", |
| Builtins::kDatePrototypeSetUTCMilliseconds, 1, false); |
| SimpleInstallFunction(prototype, "getUTCMinutes", |
| Builtins::kDatePrototypeGetUTCMinutes, 0, true); |
| SimpleInstallFunction(prototype, "setUTCMinutes", |
| Builtins::kDatePrototypeSetUTCMinutes, 3, false); |
| SimpleInstallFunction(prototype, "getUTCMonth", |
| Builtins::kDatePrototypeGetUTCMonth, 0, true); |
| SimpleInstallFunction(prototype, "setUTCMonth", |
| Builtins::kDatePrototypeSetUTCMonth, 2, false); |
| SimpleInstallFunction(prototype, "getUTCSeconds", |
| Builtins::kDatePrototypeGetUTCSeconds, 0, true); |
| SimpleInstallFunction(prototype, "setUTCSeconds", |
| Builtins::kDatePrototypeSetUTCSeconds, 2, false); |
| SimpleInstallFunction(prototype, "valueOf", Builtins::kDatePrototypeValueOf, |
| 0, true); |
| SimpleInstallFunction(prototype, "getYear", Builtins::kDatePrototypeGetYear, |
| 0, true); |
| SimpleInstallFunction(prototype, "setYear", Builtins::kDatePrototypeSetYear, |
| 1, false); |
| SimpleInstallFunction(prototype, "toJSON", Builtins::kDatePrototypeToJson, |
| 1, false); |
| |
| // Install Intl fallback functions. |
| SimpleInstallFunction(prototype, "toLocaleString", |
| Builtins::kDatePrototypeToString, 0, false); |
| SimpleInstallFunction(prototype, "toLocaleDateString", |
| Builtins::kDatePrototypeToDateString, 0, false); |
| SimpleInstallFunction(prototype, "toLocaleTimeString", |
| Builtins::kDatePrototypeToTimeString, 0, false); |
| |
| // Install the @@toPrimitive function. |
| Handle<JSFunction> to_primitive = InstallFunction( |
| prototype, factory->to_primitive_symbol(), JS_OBJECT_TYPE, |
| JSObject::kHeaderSize, 0, MaybeHandle<JSObject>(), |
| Builtins::kDatePrototypeToPrimitive, |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| // Set the expected parameters for @@toPrimitive to 1; required by builtin. |
| to_primitive->shared()->set_internal_formal_parameter_count(1); |
| |
| // Set the length for the function to satisfy ECMA-262. |
| to_primitive->shared()->set_length(1); |
| } |
| |
| { |
| Handle<SharedFunctionInfo> info = SimpleCreateSharedFunctionInfo( |
| isolate, Builtins::kPromiseGetCapabilitiesExecutor, |
| factory->empty_string(), factory->Object_string(), 2); |
| native_context()->set_promise_get_capabilities_executor_shared_fun(*info); |
| |
| // %new_promise_capability(C, debugEvent) |
| Handle<JSFunction> new_promise_capability = |
| SimpleCreateFunction(isolate, factory->empty_string(), |
| Builtins::kNewPromiseCapability, 2, false); |
| native_context()->set_new_promise_capability(*new_promise_capability); |
| } |
| |
| { // -- P r o m i s e |
| Handle<JSFunction> promise_fun = InstallFunction( |
| global, "Promise", JS_PROMISE_TYPE, JSPromise::kSizeWithEmbedderFields, |
| 0, factory->the_hole_value(), Builtins::kPromiseConstructor); |
| InstallWithIntrinsicDefaultProto(isolate, promise_fun, |
| Context::PROMISE_FUNCTION_INDEX); |
| |
| Handle<SharedFunctionInfo> shared(promise_fun->shared(), isolate); |
| shared->SetConstructStub(*BUILTIN_CODE(isolate, JSBuiltinsConstructStub)); |
| shared->set_instance_class_name(isolate->heap()->Object_string()); |
| shared->set_internal_formal_parameter_count(1); |
| shared->set_length(1); |
| |
| InstallSpeciesGetter(promise_fun); |
| |
| SimpleInstallFunction(promise_fun, "all", Builtins::kPromiseAll, 1, true); |
| |
| SimpleInstallFunction(promise_fun, "race", Builtins::kPromiseRace, 1, true); |
| |
| SimpleInstallFunction(promise_fun, "resolve", |
| Builtins::kPromiseResolveWrapper, 1, true); |
| |
| SimpleInstallFunction(promise_fun, "reject", Builtins::kPromiseReject, 1, |
| true); |
| |
| // Setup %PromisePrototype%. |
| Handle<JSObject> prototype( |
| JSObject::cast(promise_fun->instance_prototype())); |
| |
| // Install the @@toStringTag property on the {prototype}. |
| JSObject::AddProperty( |
| prototype, factory->to_string_tag_symbol(), factory->Promise_string(), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| Handle<JSFunction> promise_then = |
| SimpleInstallFunction(prototype, isolate->factory()->then_string(), |
| Builtins::kPromisePrototypeThen, 2, true); |
| native_context()->set_promise_then(*promise_then); |
| |
| Handle<JSFunction> promise_catch = SimpleInstallFunction( |
| prototype, "catch", Builtins::kPromisePrototypeCatch, 1, true); |
| native_context()->set_promise_catch(*promise_catch); |
| |
| // Force the Promise constructor to fast properties, so that we can use the |
| // fast paths for various things like |
| // |
| // x instanceof Promise |
| // |
| // etc. We should probably come up with a more principled approach once |
| // the JavaScript builtins are gone. |
| JSObject::MigrateSlowToFast(Handle<JSObject>::cast(promise_fun), 0, |
| "Bootstrapping"); |
| |
| Handle<Map> prototype_map(prototype->map()); |
| Map::SetShouldBeFastPrototypeMap(prototype_map, true, isolate); |
| |
| // Store the initial Promise.prototype map. This is used in fast-path |
| // checks. Do not alter the prototype after this point. |
| native_context()->set_promise_prototype_map(*prototype_map); |
| |
| { // Internal: PromiseInternalConstructor |
| // Also exposed as extrasUtils.createPromise. |
| Handle<JSFunction> function = |
| SimpleCreateFunction(isolate, factory->empty_string(), |
| Builtins::kPromiseInternalConstructor, 1, true); |
| function->shared()->set_native(false); |
| native_context()->set_promise_internal_constructor(*function); |
| } |
| |
| { // Internal: IsPromise |
| Handle<JSFunction> function = SimpleCreateFunction( |
| isolate, factory->empty_string(), Builtins::kIsPromise, 1, false); |
| native_context()->set_is_promise(*function); |
| } |
| |
| { // Internal: ResolvePromise |
| // Also exposed as extrasUtils.resolvePromise. |
| Handle<JSFunction> function = SimpleCreateFunction( |
| isolate, factory->empty_string(), Builtins::kResolvePromise, 2, true); |
| function->shared()->set_native(false); |
| native_context()->set_promise_resolve(*function); |
| } |
| |
| { // Internal: PromiseHandle |
| Handle<JSFunction> function = |
| SimpleCreateFunction(isolate, factory->empty_string(), |
| Builtins::kPromiseHandleJS, 5, false); |
| native_context()->set_promise_handle(*function); |
| } |
| |
| { // Internal: PromiseHandleReject |
| Handle<JSFunction> function = |
| SimpleCreateFunction(isolate, factory->empty_string(), |
| Builtins::kPromiseHandleReject, 3, false); |
| native_context()->set_promise_handle_reject(*function); |
| } |
| |
| { // Internal: InternalPromiseReject |
| Handle<JSFunction> function = |
| SimpleCreateFunction(isolate, factory->empty_string(), |
| Builtins::kInternalPromiseReject, 3, true); |
| function->shared()->set_native(false); |
| native_context()->set_promise_internal_reject(*function); |
| } |
| |
| { |
| Handle<SharedFunctionInfo> info = SimpleCreateSharedFunctionInfo( |
| isolate, Builtins::kPromiseResolveClosure, factory->empty_string(), |
| 1); |
| native_context()->set_promise_resolve_shared_fun(*info); |
| |
| info = SimpleCreateSharedFunctionInfo( |
| isolate, Builtins::kPromiseRejectClosure, factory->empty_string(), 1); |
| native_context()->set_promise_reject_shared_fun(*info); |
| } |
| |
| { |
| Handle<SharedFunctionInfo> info = SimpleCreateSharedFunctionInfo( |
| isolate, Builtins::kPromiseAllResolveElementClosure, |
| factory->empty_string(), 1); |
| native_context()->set_promise_all_resolve_element_shared_fun(*info); |
| } |
| |
| // Force the Promise constructor to fast properties, so that we can use the |
| // fast paths for various things like |
| // |
| // x instanceof Promise |
| // |
| // etc. We should probably come up with a more principled approach once |
| // the JavaScript builtins are gone. |
| JSObject::MigrateSlowToFast(promise_fun, 0, "Bootstrapping"); |
| } |
| |
| { // -- R e g E x p |
| // Builtin functions for RegExp.prototype. |
| Handle<JSFunction> regexp_fun = InstallFunction( |
| global, "RegExp", JS_REGEXP_TYPE, |
| JSRegExp::kSize + JSRegExp::kInObjectFieldCount * kPointerSize, |
| JSRegExp::kInObjectFieldCount, factory->the_hole_value(), |
| Builtins::kRegExpConstructor); |
| InstallWithIntrinsicDefaultProto(isolate, regexp_fun, |
| Context::REGEXP_FUNCTION_INDEX); |
| |
| Handle<SharedFunctionInfo> shared(regexp_fun->shared(), isolate); |
| shared->SetConstructStub(*BUILTIN_CODE(isolate, JSBuiltinsConstructStub)); |
| shared->set_instance_class_name(isolate->heap()->RegExp_string()); |
| shared->set_internal_formal_parameter_count(2); |
| shared->set_length(2); |
| |
| { |
| // Setup %RegExpPrototype%. |
| Handle<JSObject> prototype( |
| JSObject::cast(regexp_fun->instance_prototype())); |
| |
| { |
| Handle<JSFunction> fun = SimpleInstallFunction( |
| prototype, factory->exec_string(), Builtins::kRegExpPrototypeExec, |
| 1, true, DONT_ENUM); |
| native_context()->set_regexp_exec_function(*fun); |
| } |
| |
| SimpleInstallGetter(prototype, factory->dotAll_string(), |
| Builtins::kRegExpPrototypeDotAllGetter, true); |
| SimpleInstallGetter(prototype, factory->flags_string(), |
| Builtins::kRegExpPrototypeFlagsGetter, true); |
| SimpleInstallGetter(prototype, factory->global_string(), |
| Builtins::kRegExpPrototypeGlobalGetter, true); |
| SimpleInstallGetter(prototype, factory->ignoreCase_string(), |
| Builtins::kRegExpPrototypeIgnoreCaseGetter, true); |
| SimpleInstallGetter(prototype, factory->multiline_string(), |
| Builtins::kRegExpPrototypeMultilineGetter, true); |
| SimpleInstallGetter(prototype, factory->source_string(), |
| Builtins::kRegExpPrototypeSourceGetter, true); |
| SimpleInstallGetter(prototype, factory->sticky_string(), |
| Builtins::kRegExpPrototypeStickyGetter, true); |
| SimpleInstallGetter(prototype, factory->unicode_string(), |
| Builtins::kRegExpPrototypeUnicodeGetter, true); |
| |
| SimpleInstallFunction(prototype, "compile", |
| Builtins::kRegExpPrototypeCompile, 2, true, |
| DONT_ENUM); |
| SimpleInstallFunction(prototype, factory->toString_string(), |
| Builtins::kRegExpPrototypeToString, 0, false, |
| DONT_ENUM); |
| SimpleInstallFunction(prototype, "test", Builtins::kRegExpPrototypeTest, |
| 1, true, DONT_ENUM); |
| |
| SimpleInstallFunction(prototype, factory->match_symbol(), |
| "[Symbol.match]", Builtins::kRegExpPrototypeMatch, |
| 1, true); |
| |
| SimpleInstallFunction(prototype, factory->replace_symbol(), |
| "[Symbol.replace]", |
| Builtins::kRegExpPrototypeReplace, 2, false); |
| |
| SimpleInstallFunction(prototype, factory->search_symbol(), |
| "[Symbol.search]", Builtins::kRegExpPrototypeSearch, |
| 1, true); |
| |
| SimpleInstallFunction(prototype, factory->split_symbol(), |
| "[Symbol.split]", Builtins::kRegExpPrototypeSplit, |
| 2, false); |
| |
| Handle<Map> prototype_map(prototype->map()); |
| Map::SetShouldBeFastPrototypeMap(prototype_map, true, isolate); |
| |
| // 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(regexp_fun); |
| |
| // Static properties set by a successful match. |
| |
| const PropertyAttributes no_enum = DONT_ENUM; |
| SimpleInstallGetterSetter(regexp_fun, factory->input_string(), |
| Builtins::kRegExpInputGetter, |
| Builtins::kRegExpInputSetter, no_enum); |
| SimpleInstallGetterSetter( |
| regexp_fun, factory->InternalizeUtf8String("$_"), |
| Builtins::kRegExpInputGetter, Builtins::kRegExpInputSetter, no_enum); |
| |
| SimpleInstallGetterSetter( |
| regexp_fun, factory->InternalizeUtf8String("lastMatch"), |
| Builtins::kRegExpLastMatchGetter, Builtins::kEmptyFunction, no_enum); |
| SimpleInstallGetterSetter( |
| regexp_fun, factory->InternalizeUtf8String("$&"), |
| Builtins::kRegExpLastMatchGetter, Builtins::kEmptyFunction, no_enum); |
| |
| SimpleInstallGetterSetter( |
| regexp_fun, factory->InternalizeUtf8String("lastParen"), |
| Builtins::kRegExpLastParenGetter, Builtins::kEmptyFunction, no_enum); |
| SimpleInstallGetterSetter( |
| regexp_fun, factory->InternalizeUtf8String("$+"), |
| Builtins::kRegExpLastParenGetter, Builtins::kEmptyFunction, no_enum); |
| |
| SimpleInstallGetterSetter(regexp_fun, |
| factory->InternalizeUtf8String("leftContext"), |
| Builtins::kRegExpLeftContextGetter, |
| Builtins::kEmptyFunction, no_enum); |
| SimpleInstallGetterSetter(regexp_fun, |
| factory->InternalizeUtf8String("$`"), |
| Builtins::kRegExpLeftContextGetter, |
| Builtins::kEmptyFunction, no_enum); |
| |
| SimpleInstallGetterSetter(regexp_fun, |
| factory->InternalizeUtf8String("rightContext"), |
| Builtins::kRegExpRightContextGetter, |
| Builtins::kEmptyFunction, no_enum); |
| SimpleInstallGetterSetter(regexp_fun, |
| factory->InternalizeUtf8String("$'"), |
| Builtins::kRegExpRightContextGetter, |
| Builtins::kEmptyFunction, no_enum); |
| |
| #define INSTALL_CAPTURE_GETTER(i) \ |
| SimpleInstallGetterSetter( \ |
| regexp_fun, factory->InternalizeUtf8String("$" #i), \ |
| Builtins::kRegExpCapture##i##Getter, Builtins::kEmptyFunction, no_enum) |
| 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 |
| } |
| |
| DCHECK(regexp_fun->has_initial_map()); |
| Handle<Map> initial_map(regexp_fun->initial_map()); |
| |
| DCHECK_EQ(1, initial_map->GetInObjectProperties()); |
| |
| Map::EnsureDescriptorSlack(initial_map, 1); |
| |
| // ECMA-262, section 15.10.7.5. |
| PropertyAttributes writable = |
| static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE); |
| Descriptor d = Descriptor::DataField(factory->lastIndex_string(), |
| JSRegExp::kLastIndexFieldIndex, |
| writable, Representation::Tagged()); |
| initial_map->AppendDescriptor(&d); |
| |
| { // Internal: RegExpInternalMatch |
| Handle<JSFunction> function = |
| SimpleCreateFunction(isolate, isolate->factory()->empty_string(), |
| Builtins::kRegExpInternalMatch, 2, true); |
| native_context()->set(Context::REGEXP_INTERNAL_MATCH, *function); |
| } |
| |
| // Create the last match info. One for external use, and one for internal |
| // use when we don't want to modify the externally visible match info. |
| Handle<RegExpMatchInfo> last_match_info = factory->NewRegExpMatchInfo(); |
| native_context()->set_regexp_last_match_info(*last_match_info); |
| Handle<RegExpMatchInfo> internal_match_info = factory->NewRegExpMatchInfo(); |
| native_context()->set_regexp_internal_match_info(*internal_match_info); |
| |
| // Force the RegExp constructor to fast properties, so that we can use the |
| // fast paths for various things like |
| // |
| // x instanceof RegExp |
| // |
| // etc. We should probably come up with a more principled approach once |
| // the JavaScript builtins are gone. |
| JSObject::MigrateSlowToFast(regexp_fun, 0, "Bootstrapping"); |
| } |
| |
| { // -- E r r o r |
| InstallError(isolate, global, factory->Error_string(), |
| Context::ERROR_FUNCTION_INDEX); |
| InstallMakeError(isolate, Builtins::kMakeError, Context::MAKE_ERROR_INDEX); |
| } |
| |
| { // -- 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); |
| InstallMakeError(isolate, Builtins::kMakeRangeError, |
| Context::MAKE_RANGE_ERROR_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); |
| InstallMakeError(isolate, Builtins::kMakeSyntaxError, |
| Context::MAKE_SYNTAX_ERROR_INDEX); |
| } |
| |
| { // -- T y p e E r r o r |
| InstallError(isolate, global, factory->TypeError_string(), |
| Context::TYPE_ERROR_FUNCTION_INDEX); |
| InstallMakeError(isolate, Builtins::kMakeTypeError, |
| Context::MAKE_TYPE_ERROR_INDEX); |
| } |
| |
| { // -- U R I E r r o r |
| InstallError(isolate, global, factory->URIError_string(), |
| Context::URI_ERROR_FUNCTION_INDEX); |
| InstallMakeError(isolate, Builtins::kMakeURIError, |
| Context::MAKE_URI_ERROR_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. |
| Handle<FixedArray> embedder_data = factory->NewFixedArray(3); |
| native_context()->set_embedder_data(*embedder_data); |
| |
| { // -- J S O N |
| Handle<String> name = factory->InternalizeUtf8String("JSON"); |
| Handle<JSObject> json_object = |
| factory->NewJSObject(isolate->object_function(), TENURED); |
| JSObject::AddProperty(global, name, json_object, DONT_ENUM); |
| SimpleInstallFunction(json_object, "parse", Builtins::kJsonParse, 2, false); |
| SimpleInstallFunction(json_object, "stringify", Builtins::kJsonStringify, 3, |
| true); |
| JSObject::AddProperty( |
| json_object, factory->to_string_tag_symbol(), |
| factory->NewStringFromAsciiChecked("JSON"), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| } |
| |
| { // -- M a t h |
| Handle<String> name = factory->InternalizeUtf8String("Math"); |
| Handle<JSObject> math = |
| factory->NewJSObject(isolate->object_function(), TENURED); |
| JSObject::AddProperty(global, name, math, DONT_ENUM); |
| SimpleInstallFunction(math, "abs", Builtins::kMathAbs, 1, true); |
| SimpleInstallFunction(math, "acos", Builtins::kMathAcos, 1, true); |
| SimpleInstallFunction(math, "acosh", Builtins::kMathAcosh, 1, true); |
| SimpleInstallFunction(math, "asin", Builtins::kMathAsin, 1, true); |
| SimpleInstallFunction(math, "asinh", Builtins::kMathAsinh, 1, true); |
| SimpleInstallFunction(math, "atan", Builtins::kMathAtan, 1, true); |
| SimpleInstallFunction(math, "atanh", Builtins::kMathAtanh, 1, true); |
| SimpleInstallFunction(math, "atan2", Builtins::kMathAtan2, 2, true); |
| SimpleInstallFunction(math, "ceil", Builtins::kMathCeil, 1, true); |
| SimpleInstallFunction(math, "cbrt", Builtins::kMathCbrt, 1, true); |
| SimpleInstallFunction(math, "expm1", Builtins::kMathExpm1, 1, true); |
| SimpleInstallFunction(math, "clz32", Builtins::kMathClz32, 1, true); |
| SimpleInstallFunction(math, "cos", Builtins::kMathCos, 1, true); |
| SimpleInstallFunction(math, "cosh", Builtins::kMathCosh, 1, true); |
| SimpleInstallFunction(math, "exp", Builtins::kMathExp, 1, true); |
| Handle<JSFunction> math_floor = |
| SimpleInstallFunction(math, "floor", Builtins::kMathFloor, 1, true); |
| native_context()->set_math_floor(*math_floor); |
| SimpleInstallFunction(math, "fround", Builtins::kMathFround, 1, true); |
| SimpleInstallFunction(math, "hypot", Builtins::kMathHypot, 2, false); |
| SimpleInstallFunction(math, "imul", Builtins::kMathImul, 2, true); |
| SimpleInstallFunction(math, "log", Builtins::kMathLog, 1, true); |
| SimpleInstallFunction(math, "log1p", Builtins::kMathLog1p, 1, true); |
| SimpleInstallFunction(math, "log2", Builtins::kMathLog2, 1, true); |
| SimpleInstallFunction(math, "log10", Builtins::kMathLog10, 1, true); |
| SimpleInstallFunction(math, "max", Builtins::kMathMax, 2, false); |
| SimpleInstallFunction(math, "min", Builtins::kMathMin, 2, false); |
| Handle<JSFunction> math_pow = |
| SimpleInstallFunction(math, "pow", Builtins::kMathPow, 2, true); |
| native_context()->set_math_pow(*math_pow); |
| SimpleInstallFunction(math, "random", Builtins::kMathRandom, 0, true); |
| SimpleInstallFunction(math, "round", Builtins::kMathRound, 1, true); |
| SimpleInstallFunction(math, "sign", Builtins::kMathSign, 1, true); |
| SimpleInstallFunction(math, "sin", Builtins::kMathSin, 1, true); |
| SimpleInstallFunction(math, "sinh", Builtins::kMathSinh, 1, true); |
| SimpleInstallFunction(math, "sqrt", Builtins::kMathSqrt, 1, true); |
| SimpleInstallFunction(math, "tan", Builtins::kMathTan, 1, true); |
| SimpleInstallFunction(math, "tanh", Builtins::kMathTanh, 1, true); |
| SimpleInstallFunction(math, "trunc", Builtins::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))); |
| JSObject::AddProperty( |
| math, factory->to_string_tag_symbol(), |
| factory->NewStringFromAsciiChecked("Math"), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| } |
| |
| // Use the Cobalt DOM console implementation instead, as Cobalt does not |
| // implement any inspector protocol stuff. |
| #if !defined(COBALT) |
| { // -- C o n s o l e |
| Handle<String> name = factory->InternalizeUtf8String("console"); |
| NewFunctionArgs args = NewFunctionArgs::ForFunctionWithoutCode( |
| name, isolate->strict_function_map(), LanguageMode::kStrict); |
| Handle<JSFunction> cons = factory->NewFunction(args); |
| |
| Handle<JSObject> empty = factory->NewJSObject(isolate->object_function()); |
| JSFunction::SetPrototype(cons, empty); |
| |
| Handle<JSObject> console = factory->NewJSObject(cons, TENURED); |
| DCHECK(console->IsJSObject()); |
| JSObject::AddProperty(global, name, console, DONT_ENUM); |
| SimpleInstallFunction(console, "debug", Builtins::kConsoleDebug, 1, false, |
| NONE); |
| SimpleInstallFunction(console, "error", Builtins::kConsoleError, 1, false, |
| NONE); |
| SimpleInstallFunction(console, "info", Builtins::kConsoleInfo, 1, false, |
| NONE); |
| SimpleInstallFunction(console, "log", Builtins::kConsoleLog, 1, false, |
| NONE); |
| SimpleInstallFunction(console, "warn", Builtins::kConsoleWarn, 1, false, |
| NONE); |
| SimpleInstallFunction(console, "dir", Builtins::kConsoleDir, 1, false, |
| NONE); |
| SimpleInstallFunction(console, "dirxml", Builtins::kConsoleDirXml, 1, false, |
| NONE); |
| SimpleInstallFunction(console, "table", Builtins::kConsoleTable, 1, false, |
| NONE); |
| SimpleInstallFunction(console, "trace", Builtins::kConsoleTrace, 1, false, |
| NONE); |
| SimpleInstallFunction(console, "group", Builtins::kConsoleGroup, 1, false, |
| NONE); |
| SimpleInstallFunction(console, "groupCollapsed", |
| Builtins::kConsoleGroupCollapsed, 1, false, NONE); |
| SimpleInstallFunction(console, "groupEnd", Builtins::kConsoleGroupEnd, 1, |
| false, NONE); |
| SimpleInstallFunction(console, "clear", Builtins::kConsoleClear, 1, false, |
| NONE); |
| SimpleInstallFunction(console, "count", Builtins::kConsoleCount, 1, false, |
| NONE); |
| SimpleInstallFunction(console, "assert", Builtins::kFastConsoleAssert, 1, |
| false, NONE); |
| SimpleInstallFunction(console, "markTimeline", |
| Builtins::kConsoleMarkTimeline, 1, false, NONE); |
| SimpleInstallFunction(console, "profile", Builtins::kConsoleProfile, 1, |
| false, NONE); |
| SimpleInstallFunction(console, "profileEnd", Builtins::kConsoleProfileEnd, |
| 1, false, NONE); |
| SimpleInstallFunction(console, "timeline", Builtins::kConsoleTimeline, 1, |
| false, NONE); |
| SimpleInstallFunction(console, "timelineEnd", Builtins::kConsoleTimelineEnd, |
| 1, false, NONE); |
| SimpleInstallFunction(console, "time", Builtins::kConsoleTime, 1, false, |
| NONE); |
| SimpleInstallFunction(console, "timeEnd", Builtins::kConsoleTimeEnd, 1, |
| false, NONE); |
| SimpleInstallFunction(console, "timeStamp", Builtins::kConsoleTimeStamp, 1, |
| false, NONE); |
| SimpleInstallFunction(console, "context", Builtins::kConsoleContext, 1, |
| true, NONE); |
| JSObject::AddProperty( |
| console, factory->to_string_tag_symbol(), |
| factory->NewStringFromAsciiChecked("Object"), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| } |
| #endif // !defined(COBALT) |
| |
| #ifdef V8_INTL_SUPPORT |
| { // -- I n t l |
| Handle<String> name = factory->InternalizeUtf8String("Intl"); |
| Handle<JSObject> intl = |
| factory->NewJSObject(isolate->object_function(), TENURED); |
| JSObject::AddProperty(global, name, intl, DONT_ENUM); |
| |
| { |
| Handle<JSFunction> date_time_format_constructor = InstallFunction( |
| intl, "DateTimeFormat", JS_OBJECT_TYPE, DateFormat::kSize, 0, |
| factory->the_hole_value(), Builtins::kIllegal); |
| native_context()->set_intl_date_time_format_function( |
| *date_time_format_constructor); |
| |
| Handle<JSObject> prototype( |
| JSObject::cast(date_time_format_constructor->prototype()), isolate); |
| |
| // Install the @@toStringTag property on the {prototype}. |
| JSObject::AddProperty( |
| prototype, factory->to_string_tag_symbol(), factory->Object_string(), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| } |
| |
| { |
| Handle<JSFunction> number_format_constructor = InstallFunction( |
| intl, "NumberFormat", JS_OBJECT_TYPE, NumberFormat::kSize, 0, |
| factory->the_hole_value(), Builtins::kIllegal); |
| native_context()->set_intl_number_format_function( |
| *number_format_constructor); |
| |
| Handle<JSObject> prototype( |
| JSObject::cast(number_format_constructor->prototype()), isolate); |
| |
| // Install the @@toStringTag property on the {prototype}. |
| JSObject::AddProperty( |
| prototype, factory->to_string_tag_symbol(), factory->Object_string(), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| } |
| |
| { |
| Handle<JSFunction> collator_constructor = |
| InstallFunction(intl, "Collator", JS_OBJECT_TYPE, Collator::kSize, 0, |
| factory->the_hole_value(), Builtins::kIllegal); |
| native_context()->set_intl_collator_function(*collator_constructor); |
| |
| Handle<JSObject> prototype( |
| JSObject::cast(collator_constructor->prototype()), isolate); |
| |
| // Install the @@toStringTag property on the {prototype}. |
| JSObject::AddProperty( |
| prototype, factory->to_string_tag_symbol(), factory->Object_string(), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| } |
| |
| { |
| Handle<JSFunction> v8_break_iterator_constructor = InstallFunction( |
| intl, "v8BreakIterator", JS_OBJECT_TYPE, V8BreakIterator::kSize, 0, |
| factory->the_hole_value(), Builtins::kIllegal); |
| native_context()->set_intl_v8_break_iterator_function( |
| *v8_break_iterator_constructor); |
| |
| Handle<JSObject> prototype( |
| JSObject::cast(v8_break_iterator_constructor->prototype()), isolate); |
| |
| // Install the @@toStringTag property on the {prototype}. |
| JSObject::AddProperty( |
| prototype, factory->to_string_tag_symbol(), factory->Object_string(), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| } |
| } |
| #endif // V8_INTL_SUPPORT |
| |
| { // -- A r r a y B u f f e r |
| Handle<String> name = factory->InternalizeUtf8String("ArrayBuffer"); |
| Handle<JSFunction> array_buffer_fun = CreateArrayBuffer(name, ARRAY_BUFFER); |
| JSObject::AddProperty(global, name, array_buffer_fun, DONT_ENUM); |
| InstallWithIntrinsicDefaultProto(isolate, array_buffer_fun, |
| Context::ARRAY_BUFFER_FUN_INDEX); |
| InstallSpeciesGetter(array_buffer_fun); |
| |
| Handle<JSFunction> array_buffer_noinit_fun = SimpleCreateFunction( |
| isolate, |
| factory->NewStringFromAsciiChecked( |
| "arrayBufferConstructor_DoNotInitialize"), |
| Builtins::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->InternalizeUtf8String("SharedArrayBuffer"); |
| Handle<JSFunction> shared_array_buffer_fun = |
| CreateArrayBuffer(name, SHARED_ARRAY_BUFFER); |
| InstallWithIntrinsicDefaultProto(isolate, shared_array_buffer_fun, |
| Context::SHARED_ARRAY_BUFFER_FUN_INDEX); |
| InstallSpeciesGetter(shared_array_buffer_fun); |
| } |
| |
| { // -- A t o m i c s |
| Handle<JSObject> atomics_object = |
| factory->NewJSObject(isolate->object_function(), TENURED); |
| native_context()->set_atomics_object(*atomics_object); |
| |
| SimpleInstallFunction(atomics_object, "load", Builtins::kAtomicsLoad, 2, |
| true); |
| SimpleInstallFunction(atomics_object, "store", Builtins::kAtomicsStore, 3, |
| true); |
| SimpleInstallFunction(atomics_object, "add", Builtins::kAtomicsAdd, 3, |
| true); |
| SimpleInstallFunction(atomics_object, "sub", Builtins::kAtomicsSub, 3, |
| true); |
| SimpleInstallFunction(atomics_object, "and", Builtins::kAtomicsAnd, 3, |
| true); |
| SimpleInstallFunction(atomics_object, "or", Builtins::kAtomicsOr, 3, true); |
| SimpleInstallFunction(atomics_object, "xor", Builtins::kAtomicsXor, 3, |
| true); |
| SimpleInstallFunction(atomics_object, "exchange", |
| Builtins::kAtomicsExchange, 3, true); |
| SimpleInstallFunction(atomics_object, "compareExchange", |
| Builtins::kAtomicsCompareExchange, 4, true); |
| SimpleInstallFunction(atomics_object, "isLockFree", |
| Builtins::kAtomicsIsLockFree, 1, true); |
| SimpleInstallFunction(atomics_object, "wait", Builtins::kAtomicsWait, 4, |
| true); |
| SimpleInstallFunction(atomics_object, "wake", Builtins::kAtomicsWake, 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::kSize, 0, |
| factory->the_hole_value(), Builtins::kIllegal); |
| typed_array_fun->shared()->set_native(false); |
| InstallSpeciesGetter(typed_array_fun); |
| native_context()->set_typed_array_function(*typed_array_fun); |
| |
| // Setup %TypedArrayPrototype%. |
| Handle<JSObject> prototype( |
| JSObject::cast(typed_array_fun->instance_prototype())); |
| native_context()->set_typed_array_prototype(*prototype); |
| |
| // Install the "buffer", "byteOffset", "byteLength", "length" |
| // and @@toStringTag getters on the {prototype}. |
| SimpleInstallGetter(prototype, factory->buffer_string(), |
| Builtins::kTypedArrayPrototypeBuffer, false); |
| SimpleInstallGetter(prototype, factory->byte_length_string(), |
| Builtins::kTypedArrayPrototypeByteLength, true, |
| kTypedArrayByteLength); |
| SimpleInstallGetter(prototype, factory->byte_offset_string(), |
| Builtins::kTypedArrayPrototypeByteOffset, true, |
| kTypedArrayByteOffset); |
| SimpleInstallGetter(prototype, factory->length_string(), |
| Builtins::kTypedArrayPrototypeLength, true, |
| kTypedArrayLength); |
| SimpleInstallGetter(prototype, factory->to_string_tag_symbol(), |
| Builtins::kTypedArrayPrototypeToStringTag, true, |
| kTypedArrayToStringTag); |
| |
| // Install "keys", "values" and "entries" methods on the {prototype}. |
| SimpleInstallFunction(prototype, "entries", |
| Builtins::kTypedArrayPrototypeEntries, 0, true, |
| kTypedArrayEntries); |
| |
| SimpleInstallFunction(prototype, "keys", Builtins::kTypedArrayPrototypeKeys, |
| 0, true, kTypedArrayKeys); |
| |
| Handle<JSFunction> values = SimpleInstallFunction( |
| prototype, "values", Builtins::kTypedArrayPrototypeValues, 0, true, |
| kTypedArrayValues); |
| JSObject::AddProperty(prototype, factory->iterator_symbol(), values, |
| DONT_ENUM); |
| |
| // TODO(caitp): alphasort accessors/methods |
| SimpleInstallFunction(prototype, "copyWithin", |
| Builtins::kTypedArrayPrototypeCopyWithin, 2, false); |
| SimpleInstallFunction(prototype, "every", |
| Builtins::kTypedArrayPrototypeEvery, 1, false); |
| SimpleInstallFunction(prototype, "fill", |
| Builtins::kTypedArrayPrototypeFill, 1, false); |
| SimpleInstallFunction(prototype, "find", Builtins::kTypedArrayPrototypeFind, |
| 1, false); |
| SimpleInstallFunction(prototype, "findIndex", |
| Builtins::kTypedArrayPrototypeFindIndex, 1, false); |
| SimpleInstallFunction(prototype, "forEach", |
| Builtins::kTypedArrayPrototypeForEach, 1, false); |
| SimpleInstallFunction(prototype, "includes", |
| Builtins::kTypedArrayPrototypeIncludes, 1, false); |
| SimpleInstallFunction(prototype, "indexOf", |
| Builtins::kTypedArrayPrototypeIndexOf, 1, false); |
| SimpleInstallFunction(prototype, "lastIndexOf", |
| Builtins::kTypedArrayPrototypeLastIndexOf, 1, false); |
| SimpleInstallFunction(prototype, "map", Builtins::kTypedArrayPrototypeMap, |
| 1, false); |
| SimpleInstallFunction(prototype, "reverse", |
| Builtins::kTypedArrayPrototypeReverse, 0, false); |
| SimpleInstallFunction(prototype, "reduce", |
| Builtins::kTypedArrayPrototypeReduce, 1, false); |
| SimpleInstallFunction(prototype, "reduceRight", |
| Builtins::kTypedArrayPrototypeReduceRight, 1, false); |
| SimpleInstallFunction(prototype, "set", Builtins::kTypedArrayPrototypeSet, |
| 1, false); |
| SimpleInstallFunction(prototype, "slice", |
| Builtins::kTypedArrayPrototypeSlice, 2, false); |
| SimpleInstallFunction(prototype, "some", Builtins::kTypedArrayPrototypeSome, |
| 1, false); |
| } |
| |
| { // -- T y p e d A r r a y s |
| #define INSTALL_TYPED_ARRAY(Type, type, TYPE, ctype, size) \ |
| { \ |
| Handle<JSFunction> fun = \ |
| InstallTypedArray(#Type "Array", TYPE##_ELEMENTS); \ |
| InstallWithIntrinsicDefaultProto(isolate, fun, \ |
| Context::TYPE##_ARRAY_FUN_INDEX); \ |
| } |
| TYPED_ARRAYS(INSTALL_TYPED_ARRAY) |
| #undef INSTALL_TYPED_ARRAY |
| |
| // %typed_array_construct_by_length |
| Handle<JSFunction> construct_by_length = SimpleCreateFunction( |
| isolate, |
| factory->NewStringFromAsciiChecked("typedArrayConstructByLength"), |
| Builtins::kTypedArrayConstructByLength, 3, false); |
| native_context()->set_typed_array_construct_by_length(*construct_by_length); |
| |
| // %typed_array_construct_by_array_buffer |
| Handle<JSFunction> construct_by_buffer = SimpleCreateFunction( |
| isolate, |
| factory->NewStringFromAsciiChecked("typedArrayConstructByArrayBuffer"), |
| Builtins::kTypedArrayConstructByArrayBuffer, 5, false); |
| native_context()->set_typed_array_construct_by_array_buffer( |
| *construct_by_buffer); |
| |
| // %typed_array_construct_by_array_like |
| Handle<JSFunction> construct_by_array_like = SimpleCreateFunction( |
| isolate, |
| factory->NewStringFromAsciiChecked("typedArrayConstructByArrayLike"), |
| Builtins::kTypedArrayConstructByArrayLike, 4, false); |
| native_context()->set_typed_array_construct_by_array_like( |
| *construct_by_array_like); |
| } |
| |
| { // -- D a t a V i e w |
| Handle<JSFunction> data_view_fun = InstallFunction( |
| global, "DataView", JS_DATA_VIEW_TYPE, |
| JSDataView::kSizeWithEmbedderFields, 0, factory->the_hole_value(), |
| Builtins::kDataViewConstructor); |
| InstallWithIntrinsicDefaultProto(isolate, data_view_fun, |
| Context::DATA_VIEW_FUN_INDEX); |
| data_view_fun->shared()->SetConstructStub( |
| *BUILTIN_CODE(isolate, DataViewConstructor_ConstructStub)); |
| data_view_fun->shared()->set_length(3); |
| data_view_fun->shared()->DontAdaptArguments(); |
| |
| // Setup %DataViewPrototype%. |
| Handle<JSObject> prototype( |
| JSObject::cast(data_view_fun->instance_prototype())); |
| |
| // Install the @@toStringTag property on the {prototype}. |
| JSObject::AddProperty( |
| prototype, factory->to_string_tag_symbol(), |
| factory->NewStringFromAsciiChecked("DataView"), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| // Install the "buffer", "byteOffset" and "byteLength" getters |
| // on the {prototype}. |
| SimpleInstallGetter(prototype, factory->buffer_string(), |
| Builtins::kDataViewPrototypeGetBuffer, false, |
| kDataViewBuffer); |
| SimpleInstallGetter(prototype, factory->byte_length_string(), |
| Builtins::kDataViewPrototypeGetByteLength, false, |
| kDataViewByteLength); |
| SimpleInstallGetter(prototype, factory->byte_offset_string(), |
| Builtins::kDataViewPrototypeGetByteOffset, false, |
| kDataViewByteOffset); |
| |
| SimpleInstallFunction(prototype, "getInt8", |
| Builtins::kDataViewPrototypeGetInt8, 1, false); |
| SimpleInstallFunction(prototype, "setInt8", |
| Builtins::kDataViewPrototypeSetInt8, 2, false); |
| SimpleInstallFunction(prototype, "getUint8", |
| Builtins::kDataViewPrototypeGetUint8, 1, false); |
| SimpleInstallFunction(prototype, "setUint8", |
| Builtins::kDataViewPrototypeSetUint8, 2, false); |
| SimpleInstallFunction(prototype, "getInt16", |
| Builtins::kDataViewPrototypeGetInt16, 1, false); |
| SimpleInstallFunction(prototype, "setInt16", |
| Builtins::kDataViewPrototypeSetInt16, 2, false); |
| SimpleInstallFunction(prototype, "getUint16", |
| Builtins::kDataViewPrototypeGetUint16, 1, false); |
| SimpleInstallFunction(prototype, "setUint16", |
| Builtins::kDataViewPrototypeSetUint16, 2, false); |
| SimpleInstallFunction(prototype, "getInt32", |
| Builtins::kDataViewPrototypeGetInt32, 1, false); |
| SimpleInstallFunction(prototype, "setInt32", |
| Builtins::kDataViewPrototypeSetInt32, 2, false); |
| SimpleInstallFunction(prototype, "getUint32", |
| Builtins::kDataViewPrototypeGetUint32, 1, false); |
| SimpleInstallFunction(prototype, "setUint32", |
| Builtins::kDataViewPrototypeSetUint32, 2, false); |
| SimpleInstallFunction(prototype, "getFloat32", |
| Builtins::kDataViewPrototypeGetFloat32, 1, false); |
| SimpleInstallFunction(prototype, "setFloat32", |
| Builtins::kDataViewPrototypeSetFloat32, 2, false); |
| SimpleInstallFunction(prototype, "getFloat64", |
| Builtins::kDataViewPrototypeGetFloat64, 1, false); |
| SimpleInstallFunction(prototype, "setFloat64", |
| Builtins::kDataViewPrototypeSetFloat64, 2, false); |
| } |
| |
| { // -- M a p |
| { |
| Handle<String> index_string = isolate->factory()->zero_string(); |
| uint32_t field = |
| StringHasher::MakeArrayIndexHash(0, index_string->length()); |
| index_string->set_hash_field(field); |
| |
| index_string = isolate->factory()->one_string(); |
| field = StringHasher::MakeArrayIndexHash(1, index_string->length()); |
| index_string->set_hash_field(field); |
| } |
| |
| Handle<JSFunction> js_map_fun = |
| InstallFunction(global, "Map", JS_MAP_TYPE, JSMap::kSize, 0, |
| factory->the_hole_value(), Builtins::kMapConstructor); |
| InstallWithIntrinsicDefaultProto(isolate, js_map_fun, |
| Context::JS_MAP_FUN_INDEX); |
| |
| Handle<SharedFunctionInfo> shared(js_map_fun->shared(), isolate); |
| shared->SetConstructStub(*BUILTIN_CODE(isolate, JSBuiltinsConstructStub)); |
| shared->set_instance_class_name(isolate->heap()->Map_string()); |
| shared->DontAdaptArguments(); |
| shared->set_length(0); |
| |
| // Setup %MapPrototype%. |
| Handle<JSObject> prototype( |
| JSObject::cast(js_map_fun->instance_prototype())); |
| |
| // Install the @@toStringTag property on the {prototype}. |
| JSObject::AddProperty( |
| prototype, factory->to_string_tag_symbol(), factory->Map_string(), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| Handle<JSFunction> map_get = SimpleInstallFunction( |
| prototype, "get", Builtins::kMapPrototypeGet, 1, true); |
| native_context()->set_map_get(*map_get); |
| |
| Handle<JSFunction> map_set = SimpleInstallFunction( |
| prototype, "set", Builtins::kMapPrototypeSet, 2, true); |
| native_context()->set_map_set(*map_set); |
| |
| Handle<JSFunction> map_has = SimpleInstallFunction( |
| prototype, "has", Builtins::kMapPrototypeHas, 1, true); |
| native_context()->set_map_has(*map_has); |
| |
| Handle<JSFunction> map_delete = SimpleInstallFunction( |
| prototype, "delete", Builtins::kMapPrototypeDelete, 1, true); |
| native_context()->set_map_delete(*map_delete); |
| |
| SimpleInstallFunction(prototype, "clear", Builtins::kMapPrototypeClear, 0, |
| true); |
| Handle<JSFunction> entries = SimpleInstallFunction( |
| prototype, "entries", Builtins::kMapPrototypeEntries, 0, true); |
| JSObject::AddProperty(prototype, factory->iterator_symbol(), entries, |
| DONT_ENUM); |
| SimpleInstallFunction(prototype, "forEach", Builtins::kMapPrototypeForEach, |
| 1, false); |
| SimpleInstallFunction(prototype, "keys", Builtins::kMapPrototypeKeys, 0, |
| true); |
| SimpleInstallGetter(prototype, factory->InternalizeUtf8String("size"), |
| Builtins::kMapPrototypeGetSize, true, |
| BuiltinFunctionId::kMapSize); |
| SimpleInstallFunction(prototype, "values", Builtins::kMapPrototypeValues, 0, |
| true); |
| InstallSpeciesGetter(js_map_fun); |
| } |
| |
| { // -- S e t |
| Handle<JSFunction> js_set_fun = |
| InstallFunction(global, "Set", JS_SET_TYPE, JSSet::kSize, 0, |
| factory->the_hole_value(), Builtins::kSetConstructor); |
| InstallWithIntrinsicDefaultProto(isolate, js_set_fun, |
| Context::JS_SET_FUN_INDEX); |
| |
| Handle<SharedFunctionInfo> shared(js_set_fun->shared(), isolate); |
| shared->SetConstructStub(*BUILTIN_CODE(isolate, JSBuiltinsConstructStub)); |
| shared->set_instance_class_name(isolate->heap()->Set_string()); |
| shared->DontAdaptArguments(); |
| shared->set_length(0); |
| |
| // Setup %SetPrototype%. |
| Handle<JSObject> prototype( |
| JSObject::cast(js_set_fun->instance_prototype())); |
| |
| // Install the @@toStringTag property on the {prototype}. |
| JSObject::AddProperty( |
| prototype, factory->to_string_tag_symbol(), factory->Set_string(), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| Handle<JSFunction> set_has = SimpleInstallFunction( |
| prototype, "has", Builtins::kSetPrototypeHas, 1, true); |
| native_context()->set_set_has(*set_has); |
| |
| Handle<JSFunction> set_add = SimpleInstallFunction( |
| prototype, "add", Builtins::kSetPrototypeAdd, 1, true); |
| native_context()->set_set_add(*set_add); |
| |
| Handle<JSFunction> set_delete = SimpleInstallFunction( |
| prototype, "delete", Builtins::kSetPrototypeDelete, 1, true); |
| native_context()->set_set_delete(*set_delete); |
| |
| SimpleInstallFunction(prototype, "clear", Builtins::kSetPrototypeClear, 0, |
| true); |
| SimpleInstallFunction(prototype, "entries", Builtins::kSetPrototypeEntries, |
| 0, true); |
| SimpleInstallFunction(prototype, "forEach", Builtins::kSetPrototypeForEach, |
| 1, false); |
| SimpleInstallGetter(prototype, factory->InternalizeUtf8String("size"), |
| Builtins::kSetPrototypeGetSize, true, |
| BuiltinFunctionId::kSetSize); |
| Handle<JSFunction> values = SimpleInstallFunction( |
| prototype, "values", Builtins::kSetPrototypeValues, 0, true); |
| JSObject::AddProperty(prototype, factory->keys_string(), values, DONT_ENUM); |
| JSObject::AddProperty(prototype, factory->iterator_symbol(), values, |
| DONT_ENUM); |
| InstallSpeciesGetter(js_set_fun); |
| } |
| |
| { // -- 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::SetPrototype(map, isolate->factory()->null_value()); |
| Map::EnsureDescriptorSlack(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(factory->to_string_tag_symbol(), |
| JSModuleNamespace::kToStringTagFieldIndex, |
| attribs, Representation::Tagged()); |
| map->AppendDescriptor(&d); |
| } |
| } |
| |
| { // -- I t e r a t o r R e s u l t |
| Handle<Map> map = factory->NewMap(JS_OBJECT_TYPE, JSIteratorResult::kSize, |
| TERMINAL_FAST_ELEMENTS_KIND, 2); |
| Map::SetPrototype(map, isolate->initial_object_prototype()); |
| Map::EnsureDescriptorSlack(map, 2); |
| |
| { // value |
| Descriptor d = Descriptor::DataField(factory->value_string(), |
| JSIteratorResult::kValueIndex, NONE, |
| Representation::Tagged()); |
| map->AppendDescriptor(&d); |
| } |
| |
| { // done |
| Descriptor d = Descriptor::DataField(factory->done_string(), |
| JSIteratorResult::kDoneIndex, NONE, |
| Representation::Tagged()); |
| map->AppendDescriptor(&d); |
| } |
| |
| map->SetConstructor(native_context()->object_function()); |
| native_context()->set_iterator_result_map(*map); |
| } |
| |
| { // -- W e a k M a p |
| Handle<JSFunction> cons = InstallFunction( |
| global, "WeakMap", JS_WEAK_MAP_TYPE, JSWeakMap::kSize, 0, |
| factory->the_hole_value(), Builtins::kWeakMapConstructor); |
| InstallWithIntrinsicDefaultProto(isolate, cons, |
| Context::JS_WEAK_MAP_FUN_INDEX); |
| |
| Handle<SharedFunctionInfo> shared(cons->shared(), isolate); |
| shared->SetConstructStub(*BUILTIN_CODE(isolate, JSBuiltinsConstructStub)); |
| shared->set_instance_class_name(isolate->heap()->WeakMap_string()); |
| shared->DontAdaptArguments(); |
| shared->set_length(0); |
| |
| // Setup %WeakMapPrototype%. |
| Handle<JSObject> prototype(JSObject::cast(cons->instance_prototype())); |
| |
| SimpleInstallFunction(prototype, "delete", |
| Builtins::kWeakMapPrototypeDelete, 1, true); |
| SimpleInstallFunction(prototype, "get", Builtins::kWeakMapGet, 1, true); |
| SimpleInstallFunction(prototype, "has", Builtins::kWeakMapHas, 1, true); |
| SimpleInstallFunction(prototype, "set", Builtins::kWeakMapPrototypeSet, 2, |
| true); |
| |
| JSObject::AddProperty( |
| prototype, factory->to_string_tag_symbol(), |
| factory->NewStringFromAsciiChecked("WeakMap"), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| } |
| |
| { // -- W e a k S e t |
| Handle<JSFunction> cons = InstallFunction( |
| global, "WeakSet", JS_WEAK_SET_TYPE, JSWeakSet::kSize, 0, |
| factory->the_hole_value(), Builtins::kWeakSetConstructor); |
| InstallWithIntrinsicDefaultProto(isolate, cons, |
| Context::JS_WEAK_SET_FUN_INDEX); |
| |
| Handle<SharedFunctionInfo> shared(cons->shared(), isolate); |
| shared->SetConstructStub(*BUILTIN_CODE(isolate, JSBuiltinsConstructStub)); |
| shared->set_instance_class_name(isolate->heap()->WeakSet_string()); |
| shared->DontAdaptArguments(); |
| shared->set_length(0); |
| |
| // Setup %WeakSetPrototype%. |
| Handle<JSObject> prototype(JSObject::cast(cons->instance_prototype())); |
| |
| SimpleInstallFunction(prototype, "delete", |
| Builtins::kWeakSetPrototypeDelete, 1, true); |
| SimpleInstallFunction(prototype, "has", Builtins::kWeakSetHas, 1, true); |
| SimpleInstallFunction(prototype, "add", Builtins::kWeakSetPrototypeAdd, 1, |
| true); |
| |
| JSObject::AddProperty( |
| prototype, factory->to_string_tag_symbol(), |
| factory->NewStringFromAsciiChecked("WeakSet"), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| } |
| |
| { // -- 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->strict_function_without_prototype_map(), "Proxy"); |
| // Re-set the unused property fields after changing the instance size. |
| // TODO(ulan): Do not change instance size after map creation. |
| int unused_property_fields = proxy_function_map->UnusedPropertyFields(); |
| proxy_function_map->set_instance_size(JSFunction::kSizeWithPrototype); |
| // The prototype slot shifts the in-object properties area by one slot. |
| proxy_function_map->SetInObjectPropertiesStartInWords( |
| proxy_function_map->GetInObjectPropertiesStartInWords() + 1); |
| proxy_function_map->set_has_prototype_slot(true); |
| proxy_function_map->set_is_constructor(true); |
| proxy_function_map->SetInObjectUnusedPropertyFields(unused_property_fields); |
| |
| Handle<String> name = factory->Proxy_string(); |
| Handle<Code> code(BUILTIN_CODE(isolate, ProxyConstructor)); |
| |
| NewFunctionArgs args = NewFunctionArgs::ForBuiltin( |
| name, code, proxy_function_map, Builtins::kProxyConstructor); |
| Handle<JSFunction> proxy_function = factory->NewFunction(args); |
| |
| JSFunction::SetInitialMap(proxy_function, isolate->proxy_map(), |
| factory->null_value()); |
| |
| proxy_function->shared()->SetConstructStub( |
| *BUILTIN_CODE(isolate, ProxyConstructor_ConstructStub)); |
| proxy_function->shared()->set_internal_formal_parameter_count(2); |
| proxy_function->shared()->set_length(2); |
| |
| native_context()->set_proxy_function(*proxy_function); |
| InstallFunction(global, name, proxy_function, factory->Object_string()); |
| |
| SimpleInstallFunction(proxy_function, "revocable", |
| Builtins::kProxyRevocable, 2, true); |
| |
| { // Internal: ProxyRevoke |
| Handle<SharedFunctionInfo> info = SimpleCreateSharedFunctionInfo( |
| isolate, Builtins::kProxyRevoke, factory->empty_string(), 0); |
| native_context()->set_proxy_revoke_shared_fun(*info); |
| } |
| } |
| |
| { // -- R e f l e c t |
| Handle<String> reflect_string = factory->InternalizeUtf8String("Reflect"); |
| Handle<JSObject> reflect = |
| factory->NewJSObject(isolate->object_function(), TENURED); |
| JSObject::AddProperty(global, reflect_string, reflect, DONT_ENUM); |
| |
| Handle<JSFunction> define_property = |
| SimpleInstallFunction(reflect, factory->defineProperty_string(), |
| Builtins::kReflectDefineProperty, 3, true); |
| native_context()->set_reflect_define_property(*define_property); |
| |
| Handle<JSFunction> delete_property = |
| SimpleInstallFunction(reflect, factory->deleteProperty_string(), |
| Builtins::kReflectDeleteProperty, 2, true); |
| native_context()->set_reflect_delete_property(*delete_property); |
| |
| Handle<JSFunction> apply = SimpleInstallFunction( |
| reflect, factory->apply_string(), Builtins::kReflectApply, 3, false); |
| native_context()->set_reflect_apply(*apply); |
| |
| Handle<JSFunction> construct = |
| SimpleInstallFunction(reflect, factory->construct_string(), |
| Builtins::kReflectConstruct, 2, false); |
| native_context()->set_reflect_construct(*construct); |
| |
| SimpleInstallFunction(reflect, factory->get_string(), Builtins::kReflectGet, |
| 2, false); |
| SimpleInstallFunction(reflect, factory->getOwnPropertyDescriptor_string(), |
| Builtins::kReflectGetOwnPropertyDescriptor, 2, true); |
| SimpleInstallFunction(reflect, factory->getPrototypeOf_string(), |
| Builtins::kReflectGetPrototypeOf, 1, true); |
| SimpleInstallFunction(reflect, factory->has_string(), Builtins::kReflectHas, |
| 2, true); |
| SimpleInstallFunction(reflect, factory->isExtensible_string(), |
| Builtins::kReflectIsExtensible, 1, true); |
| SimpleInstallFunction(reflect, factory->ownKeys_string(), |
| Builtins::kReflectOwnKeys, 1, true); |
| SimpleInstallFunction(reflect, factory->preventExtensions_string(), |
| Builtins::kReflectPreventExtensions, 1, true); |
| SimpleInstallFunction(reflect, factory->set_string(), Builtins::kReflectSet, |
| 3, false); |
| SimpleInstallFunction(reflect, factory->setPrototypeOf_string(), |
| Builtins::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::kSize, |
| TERMINAL_FAST_ELEMENTS_KIND, 0); |
| map->SetConstructor(native_context()->object_function()); |
| map->set_is_callable(true); |
| Map::SetPrototype(map, empty_function); |
| |
| PropertyAttributes roc_attribs = |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY); |
| Map::EnsureDescriptorSlack(map, 2); |
| |
| { // length |
| Descriptor d = Descriptor::AccessorConstant( |
| factory->length_string(), factory->bound_function_length_accessor(), |
| roc_attribs); |
| map->AppendDescriptor(&d); |
| } |
| |
| { // name |
| Descriptor d = Descriptor::AccessorConstant( |
| factory->name_string(), factory->bound_function_name_accessor(), |
| roc_attribs); |
| map->AppendDescriptor(&d); |
| } |
| native_context()->set_bound_function_without_constructor_map(*map); |
| |
| map = Map::Copy(map, "IsConstructor"); |
| map->set_is_constructor(true); |
| native_context()->set_bound_function_with_constructor_map(*map); |
| } |
| |
| { // --- sloppy arguments map |
| // Make sure we can recognize argument objects at runtime. |
| // This is done by introducing an anonymous function with |
| // class_name equals 'Arguments'. |
| Handle<String> arguments_string = factory->Arguments_string(); |
| NewFunctionArgs args = NewFunctionArgs::ForBuiltinWithPrototype( |
| arguments_string, BUILTIN_CODE(isolate, Illegal), |
| isolate->initial_object_prototype(), JS_ARGUMENTS_TYPE, |
| JSSloppyArgumentsObject::kSize, 2, Builtins::kIllegal, MUTABLE); |
| Handle<JSFunction> function = factory->NewFunction(args); |
| function->shared()->set_instance_class_name(*arguments_string); |
| Handle<Map> map(function->initial_map()); |
| |
| // Create the descriptor array for the arguments object. |
| Map::EnsureDescriptorSlack(map, 2); |
| |
| { // length |
| Descriptor d = Descriptor::DataField( |
| factory->length_string(), JSSloppyArgumentsObject::kLengthIndex, |
| DONT_ENUM, Representation::Tagged()); |
| map->AppendDescriptor(&d); |
| } |
| { // callee |
| Descriptor d = Descriptor::DataField( |
| factory->callee_string(), JSSloppyArgumentsObject::kCalleeIndex, |
| DONT_ENUM, Representation::Tagged()); |
| map->AppendDescriptor(&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(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(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_TYPE, JSStrictArgumentsObject::kSize, PACKED_ELEMENTS, 1); |
| // Create the descriptor array for the arguments object. |
| Map::EnsureDescriptorSlack(map, 2); |
| |
| { // length |
| Descriptor d = Descriptor::DataField( |
| factory->length_string(), JSStrictArgumentsObject::kLengthIndex, |
| DONT_ENUM, Representation::Tagged()); |
| map->AppendDescriptor(&d); |
| } |
| { // callee |
| Descriptor d = Descriptor::AccessorConstant(factory->callee_string(), |
| callee, attributes); |
| map->AppendDescriptor(&d); |
| } |
| // @@iterator method is added later. |
| |
| DCHECK_EQ(native_context()->object_function()->prototype(), |
| *isolate->initial_object_prototype()); |
| Map::SetPrototype(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(), Builtins::kIllegal); |
| Handle<String> name = factory->InternalizeUtf8String("context_extension"); |
| context_extension_fun->shared()->set_instance_class_name(*name); |
| native_context()->set_context_extension_function(*context_extension_fun); |
| } |
| |
| { |
| // Set up the call-as-function delegate. |
| Handle<JSFunction> delegate = |
| SimpleCreateFunction(isolate, factory->empty_string(), |
| Builtins::kHandleApiCallAsFunction, 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(), |
| Builtins::kHandleApiCallAsConstructor, 0, false); |
| native_context()->set_call_as_constructor_delegate(*delegate); |
| } |
| } // NOLINT(readability/fn_size) |
| |
| Handle<JSFunction> Genesis::InstallTypedArray(const char* name, |
| ElementsKind elements_kind) { |
| Handle<JSObject> global = Handle<JSObject>(native_context()->global_object()); |
| |
| Handle<JSObject> typed_array_prototype = |
| Handle<JSObject>(isolate()->typed_array_prototype()); |
| Handle<JSFunction> typed_array_function = |
| Handle<JSFunction>(isolate()->typed_array_function()); |
| |
| Handle<JSFunction> result = InstallFunction( |
| global, name, JS_TYPED_ARRAY_TYPE, JSTypedArray::kSizeWithEmbedderFields, |
| 0, factory()->the_hole_value(), Builtins::kIllegal); |
| result->initial_map()->set_elements_kind(elements_kind); |
| |
| CHECK(JSObject::SetPrototype(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); |
| |
| // Setup prototype object. |
| DCHECK(result->prototype()->IsJSObject()); |
| Handle<JSObject> prototype(JSObject::cast(result->prototype()), isolate()); |
| |
| CHECK(JSObject::SetPrototype(prototype, typed_array_prototype, false, |
| kDontThrow) |
| .FromJust()); |
| |
| InstallConstant(isolate(), prototype, "BYTES_PER_ELEMENT", bytes_per_element); |
| return result; |
| } |
| |
| |
| void Genesis::InitializeExperimentalGlobal() { |
| #define FEATURE_INITIALIZE_GLOBAL(id, descr) InitializeGlobal_##id(); |
| |
| HARMONY_INPROGRESS(FEATURE_INITIALIZE_GLOBAL) |
| HARMONY_STAGED(FEATURE_INITIALIZE_GLOBAL) |
| HARMONY_SHIPPING(FEATURE_INITIALIZE_GLOBAL) |
| #undef FEATURE_INITIALIZE_GLOBAL |
| } |
| |
| bool Bootstrapper::CompileBuiltin(Isolate* isolate, int index) { |
| Vector<const char> name = Natives::GetScriptName(index); |
| Handle<String> source_code = |
| isolate->bootstrapper()->GetNativeSource(CORE, index); |
| |
| // We pass in extras_utils so that builtin code can set it up for later use |
| // by actual extras code, compiled with CompileExtraBuiltin. |
| Handle<Object> global = isolate->global_object(); |
| Handle<Object> utils = isolate->natives_utils_object(); |
| Handle<Object> extras_utils = isolate->extras_utils_object(); |
| Handle<Object> args[] = {global, utils, extras_utils}; |
| |
| return Bootstrapper::CompileNative(isolate, name, source_code, |
| arraysize(args), args, NATIVES_CODE); |
| } |
| |
| |
| bool Bootstrapper::CompileExtraBuiltin(Isolate* isolate, int index) { |
| HandleScope scope(isolate); |
| Vector<const char> name = ExtraNatives::GetScriptName(index); |
| Handle<String> source_code = |
| isolate->bootstrapper()->GetNativeSource(EXTRAS, index); |
| Handle<Object> global = isolate->global_object(); |
| Handle<Object> binding = isolate->extras_binding_object(); |
| Handle<Object> extras_utils = isolate->extras_utils_object(); |
| Handle<Object> args[] = {global, binding, extras_utils}; |
| return Bootstrapper::CompileNative(isolate, name, source_code, |
| arraysize(args), args, EXTENSION_CODE); |
| } |
| |
| |
| bool Bootstrapper::CompileExperimentalExtraBuiltin(Isolate* isolate, |
| int index) { |
| HandleScope scope(isolate); |
| Vector<const char> name = ExperimentalExtraNatives::GetScriptName(index); |
| Handle<String> source_code = |
| isolate->bootstrapper()->GetNativeSource(EXPERIMENTAL_EXTRAS, index); |
| Handle<Object> global = isolate->global_object(); |
| Handle<Object> binding = isolate->extras_binding_object(); |
| Handle<Object> extras_utils = isolate->extras_utils_object(); |
| Handle<Object> args[] = {global, binding, extras_utils}; |
| return Bootstrapper::CompileNative(isolate, name, source_code, |
| arraysize(args), args, EXTENSION_CODE); |
| } |
| |
| bool Bootstrapper::CompileNative(Isolate* isolate, Vector<const char> name, |
| Handle<String> source, int argc, |
| Handle<Object> argv[], |
| NativesFlag natives_flag) { |
| SuppressDebug compiling_natives(isolate->debug()); |
| // During genesis, the boilerplate for stack overflow won't work until the |
| // environment has been at least partially initialized. Add a stack check |
| // before entering JS code to catch overflow early. |
| StackLimitCheck check(isolate); |
| if (check.JsHasOverflowed(kStackSpaceRequiredForCompilation * KB)) { |
| isolate->StackOverflow(); |
| return false; |
| } |
| |
| Handle<Context> context(isolate->context()); |
| |
| Handle<String> script_name = |
| isolate->factory()->NewStringFromUtf8(name).ToHandleChecked(); |
| MaybeHandle<SharedFunctionInfo> maybe_function_info = |
| Compiler::GetSharedFunctionInfoForScript( |
| source, script_name, 0, 0, ScriptOriginOptions(), |
| MaybeHandle<Object>(), context, nullptr, nullptr, |
| ScriptCompiler::kNoCompileOptions, ScriptCompiler::kNoCacheNoReason, |
| natives_flag, MaybeHandle<FixedArray>()); |
| Handle<SharedFunctionInfo> function_info; |
| if (!maybe_function_info.ToHandle(&function_info)) return false; |
| |
| DCHECK(context->IsNativeContext()); |
| |
| Handle<JSFunction> fun = |
| isolate->factory()->NewFunctionFromSharedFunctionInfo(function_info, |
| context); |
| Handle<Object> receiver = isolate->factory()->undefined_value(); |
| |
| // For non-extension scripts, run script to get the function wrapper. |
| Handle<Object> wrapper; |
| if (!Execution::TryCall(isolate, fun, receiver, 0, nullptr, |
| Execution::MessageHandling::kKeepPending, nullptr) |
| .ToHandle(&wrapper)) { |
| return false; |
| } |
| // Then run the function wrapper. |
| return !Execution::TryCall(isolate, Handle<JSFunction>::cast(wrapper), |
| receiver, argc, argv, |
| Execution::MessageHandling::kKeepPending, nullptr) |
| .is_null(); |
| } |
| |
| |
| bool Genesis::CallUtilsFunction(Isolate* isolate, const char* name) { |
| Handle<JSObject> utils = |
| Handle<JSObject>::cast(isolate->natives_utils_object()); |
| Handle<String> name_string = |
| isolate->factory()->NewStringFromAsciiChecked(name); |
| Handle<Object> fun = JSObject::GetDataProperty(utils, name_string); |
| Handle<Object> receiver = isolate->factory()->undefined_value(); |
| Handle<Object> args[] = {utils}; |
| return !Execution::TryCall(isolate, fun, receiver, 1, args, |
| Execution::MessageHandling::kKeepPending, nullptr) |
| .is_null(); |
| } |
| |
| |
| 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. |
| Vector<const char> name = CStrVector(extension->name()); |
| SourceCodeCache* cache = isolate->bootstrapper()->extensions_cache(); |
| Handle<Context> context(isolate->context()); |
| DCHECK(context->IsNativeContext()); |
| |
| if (!cache->Lookup(name, &function_info)) { |
| Handle<String> script_name = |
| factory->NewStringFromUtf8(name).ToHandleChecked(); |
| MaybeHandle<SharedFunctionInfo> maybe_function_info = |
| Compiler::GetSharedFunctionInfoForScript( |
| source, script_name, 0, 0, ScriptOriginOptions(), |
| MaybeHandle<Object>(), context, extension, nullptr, |
| ScriptCompiler::kNoCompileOptions, |
| ScriptCompiler::kNoCacheBecauseV8Extension, EXTENSION_CODE, |
| MaybeHandle<FixedArray>()); |
| if (!maybe_function_info.ToHandle(&function_info)) return false; |
| cache->Add(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->NewFunctionFromSharedFunctionInfo(function_info, context); |
| |
| // Call function using either the runtime object or the global |
| // object as the receiver. Provide no parameters. |
| Handle<Object> receiver = isolate->global_object(); |
| return !Execution::TryCall(isolate, fun, receiver, 0, nullptr, |
| Execution::MessageHandling::kKeepPending, nullptr) |
| .is_null(); |
| } |
| |
| |
| static Handle<JSObject> ResolveBuiltinIdHolder(Handle<Context> native_context, |
| const char* holder_expr) { |
| Isolate* isolate = native_context->GetIsolate(); |
| Factory* factory = isolate->factory(); |
| Handle<JSGlobalObject> global(native_context->global_object()); |
| const char* period_pos = strchr(holder_expr, '.'); |
| if (period_pos == nullptr) { |
| return Handle<JSObject>::cast( |
| Object::GetPropertyOrElement( |
| global, factory->InternalizeUtf8String(holder_expr)) |
| .ToHandleChecked()); |
| } |
| const char* inner = period_pos + 1; |
| DCHECK(!strchr(inner, '.')); |
| Vector<const char> property(holder_expr, |
| static_cast<int>(period_pos - holder_expr)); |
| Handle<String> property_string = factory->InternalizeUtf8String(property); |
| DCHECK(!property_string.is_null()); |
| Handle<JSObject> object = Handle<JSObject>::cast( |
| JSReceiver::GetProperty(global, property_string).ToHandleChecked()); |
| if (strcmp("prototype", inner) == 0) { |
| Handle<JSFunction> function = Handle<JSFunction>::cast(object); |
| return Handle<JSObject>(JSObject::cast(function->prototype())); |
| } |
| Handle<String> inner_string = factory->InternalizeUtf8String(inner); |
| DCHECK(!inner_string.is_null()); |
| Handle<Object> value = |
| JSReceiver::GetProperty(object, inner_string).ToHandleChecked(); |
| return Handle<JSObject>::cast(value); |
| } |
| |
| void Genesis::ConfigureUtilsObject(GlobalContextType context_type) { |
| switch (context_type) { |
| // We still need the utils object to find debug functions. |
| case DEBUG_CONTEXT: |
| return; |
| // Expose the natives in global if a valid name for it is specified. |
| case FULL_CONTEXT: { |
| // We still need the utils object after deserialization. |
| if (isolate()->serializer_enabled()) return; |
| if (FLAG_expose_natives_as == nullptr) break; |
| if (strlen(FLAG_expose_natives_as) == 0) break; |
| HandleScope scope(isolate()); |
| Handle<String> natives_key = |
| factory()->InternalizeUtf8String(FLAG_expose_natives_as); |
| uint32_t dummy_index; |
| if (natives_key->AsArrayIndex(&dummy_index)) break; |
| Handle<Object> utils = isolate()->natives_utils_object(); |
| Handle<JSObject> global = isolate()->global_object(); |
| JSObject::AddProperty(global, natives_key, utils, DONT_ENUM); |
| break; |
| } |
| } |
| |
| // The utils object can be removed for cases that reach this point. |
| native_context()->set_natives_utils_object(heap()->undefined_value()); |
| native_context()->set_extras_utils_object(heap()->undefined_value()); |
| } |
| |
| |
| void Bootstrapper::ExportFromRuntime(Isolate* isolate, |
| Handle<JSObject> container) { |
| Factory* factory = isolate->factory(); |
| HandleScope scope(isolate); |
| Handle<Context> native_context = isolate->native_context(); |
| #define EXPORT_PRIVATE_SYMBOL(NAME) \ |
| Handle<String> NAME##_name = factory->NewStringFromAsciiChecked(#NAME); \ |
| JSObject::AddProperty(container, NAME##_name, factory->NAME(), NONE); |
| PRIVATE_SYMBOL_LIST(EXPORT_PRIVATE_SYMBOL) |
| #undef EXPORT_PRIVATE_SYMBOL |
| |
| #define EXPORT_PUBLIC_SYMBOL(NAME, DESCRIPTION) \ |
| Handle<String> NAME##_name = factory->NewStringFromAsciiChecked(#NAME); \ |
| JSObject::AddProperty(container, NAME##_name, factory->NAME(), NONE); |
| PUBLIC_SYMBOL_LIST(EXPORT_PUBLIC_SYMBOL) |
| WELL_KNOWN_SYMBOL_LIST(EXPORT_PUBLIC_SYMBOL) |
| #undef EXPORT_PUBLIC_SYMBOL |
| |
| Handle<JSObject> iterator_prototype( |
| native_context->initial_iterator_prototype()); |
| |
| JSObject::AddProperty(container, |
| factory->InternalizeUtf8String("IteratorPrototype"), |
| iterator_prototype, NONE); |
| |
| { |
| PrototypeIterator iter(native_context->generator_function_map()); |
| Handle<JSObject> generator_function_prototype(iter.GetCurrent<JSObject>()); |
| |
| JSObject::AddProperty( |
| container, factory->InternalizeUtf8String("GeneratorFunctionPrototype"), |
| generator_function_prototype, NONE); |
| |
| Handle<JSFunction> generator_function_function = InstallFunction( |
| container, "GeneratorFunction", JS_FUNCTION_TYPE, |
| JSFunction::kSizeWithPrototype, 0, generator_function_prototype, |
| Builtins::kGeneratorFunctionConstructor); |
| generator_function_function->set_prototype_or_initial_map( |
| native_context->generator_function_map()); |
| generator_function_function->shared()->DontAdaptArguments(); |
| generator_function_function->shared()->SetConstructStub( |
| *BUILTIN_CODE(isolate, GeneratorFunctionConstructor)); |
| generator_function_function->shared()->set_length(1); |
| InstallWithIntrinsicDefaultProto( |
| isolate, generator_function_function, |
| Context::GENERATOR_FUNCTION_FUNCTION_INDEX); |
| |
| JSObject::ForceSetPrototype(generator_function_function, |
| isolate->function_function()); |
| JSObject::AddProperty( |
| 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); |
| } |
| |
| { |
| PrototypeIterator iter(native_context->async_generator_function_map()); |
| Handle<JSObject> async_generator_function_prototype( |
| iter.GetCurrent<JSObject>()); |
| |
| Handle<JSFunction> async_generator_function_function = InstallFunction( |
| container, "AsyncGeneratorFunction", JS_FUNCTION_TYPE, |
| JSFunction::kSizeWithPrototype, 0, async_generator_function_prototype, |
| Builtins::kAsyncGeneratorFunctionConstructor); |
| async_generator_function_function->set_prototype_or_initial_map( |
| native_context->async_generator_function_map()); |
| async_generator_function_function->shared()->DontAdaptArguments(); |
| async_generator_function_function->shared()->SetConstructStub( |
| *BUILTIN_CODE(isolate, AsyncGeneratorFunctionConstructor)); |
| async_generator_function_function->shared()->set_length(1); |
| InstallWithIntrinsicDefaultProto( |
| isolate, async_generator_function_function, |
| Context::ASYNC_GENERATOR_FUNCTION_FUNCTION_INDEX); |
| |
| JSObject::ForceSetPrototype(async_generator_function_function, |
| isolate->function_function()); |
| |
| JSObject::AddProperty( |
| 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); |
| } |
| |
| { // -- S e t I t e r a t o r |
| Handle<String> name = factory->InternalizeUtf8String("Set Iterator"); |
| |
| // Setup %SetIteratorPrototype%. |
| Handle<JSObject> prototype = |
| factory->NewJSObject(isolate->object_function(), TENURED); |
| JSObject::ForceSetPrototype(prototype, iterator_prototype); |
| |
| // Install the @@toStringTag property on the {prototype}. |
| JSObject::AddProperty( |
| prototype, factory->to_string_tag_symbol(), name, |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| // Install the next function on the {prototype}. |
| SimpleInstallFunction(prototype, "next", |
| Builtins::kSetIteratorPrototypeNext, 0, true, |
| kSetIteratorNext); |
| |
| // Setup SetIterator constructor. |
| Handle<JSFunction> set_iterator_function = |
| InstallFunction(container, "SetIterator", JS_SET_VALUE_ITERATOR_TYPE, |
| JSSetIterator::kSize, 0, prototype, Builtins::kIllegal); |
| set_iterator_function->shared()->set_native(false); |
| set_iterator_function->shared()->set_instance_class_name(*name); |
| |
| 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(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 |
| Handle<String> name = factory->InternalizeUtf8String("Map Iterator"); |
| |
| // Setup %MapIteratorPrototype%. |
| Handle<JSObject> prototype = |
| factory->NewJSObject(isolate->object_function(), TENURED); |
| JSObject::ForceSetPrototype(prototype, iterator_prototype); |
| |
| // Install the @@toStringTag property on the {prototype}. |
| JSObject::AddProperty( |
| prototype, factory->to_string_tag_symbol(), name, |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| // Install the next function on the {prototype}. |
| SimpleInstallFunction(prototype, "next", |
| Builtins::kMapIteratorPrototypeNext, 0, true, |
| kMapIteratorNext); |
| |
| // Setup MapIterator constructor. |
| Handle<JSFunction> map_iterator_function = |
| InstallFunction(container, "MapIterator", JS_MAP_KEY_ITERATOR_TYPE, |
| JSMapIterator::kSize, 0, prototype, Builtins::kIllegal); |
| map_iterator_function->shared()->set_native(false); |
| map_iterator_function->shared()->set_instance_class_name(*name); |
| |
| 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(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(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); |
| } |
| |
| { // -- S c r i p t |
| Handle<String> name = factory->InternalizeUtf8String("Script"); |
| Handle<JSFunction> script_fun = InstallFunction( |
| container, name, JS_VALUE_TYPE, JSValue::kSize, 0, |
| factory->the_hole_value(), Builtins::kUnsupportedThrower, DONT_ENUM); |
| script_fun->shared()->set_instance_class_name(*name); |
| native_context->set_script_function(*script_fun); |
| |
| Handle<Map> script_map = Handle<Map>(script_fun->initial_map()); |
| Map::EnsureDescriptorSlack(script_map, 15); |
| |
| PropertyAttributes attribs = |
| static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY); |
| |
| { // column_offset |
| Handle<AccessorInfo> info = factory->script_column_offset_accessor(); |
| Descriptor d = Descriptor::AccessorConstant(handle(info->name(), isolate), |
| info, attribs); |
| script_map->AppendDescriptor(&d); |
| } |
| |
| { // id |
| Handle<AccessorInfo> info = factory->script_id_accessor(); |
| Descriptor d = Descriptor::AccessorConstant(handle(info->name(), isolate), |
| info, attribs); |
| script_map->AppendDescriptor(&d); |
| } |
| |
| { // name |
| Handle<AccessorInfo> info = factory->script_name_accessor(); |
| Descriptor d = Descriptor::AccessorConstant(handle(info->name(), isolate), |
| info, attribs); |
| script_map->AppendDescriptor(&d); |
| } |
| |
| { // line_offset |
| Handle<AccessorInfo> info = factory->script_line_offset_accessor(); |
| Descriptor d = Descriptor::AccessorConstant(handle(info->name(), isolate), |
| info, attribs); |
| script_map->AppendDescriptor(&d); |
| } |
| |
| { // source |
| Handle<AccessorInfo> info = factory->script_source_accessor(); |
| Descriptor d = Descriptor::AccessorConstant(handle(info->name(), isolate), |
| info, attribs); |
| script_map->AppendDescriptor(&d); |
| } |
| |
| { // type |
| Handle<AccessorInfo> info = factory->script_type_accessor(); |
| Descriptor d = Descriptor::AccessorConstant(handle(info->name(), isolate), |
| info, attribs); |
| script_map->AppendDescriptor(&d); |
| } |
| |
| { // compilation_type |
| Handle<AccessorInfo> info = factory->script_compilation_type_accessor(); |
| Descriptor d = Descriptor::AccessorConstant(handle(info->name(), isolate), |
| info, attribs); |
| script_map->AppendDescriptor(&d); |
| } |
| |
| { // context_data |
| Handle<AccessorInfo> info = factory->script_context_data_accessor(); |
| Descriptor d = Descriptor::AccessorConstant(handle(info->name(), isolate), |
| info, attribs); |
| script_map->AppendDescriptor(&d); |
| } |
| |
| { // eval_from_script |
| Handle<AccessorInfo> info = factory->script_eval_from_script_accessor(); |
| Descriptor d = Descriptor::AccessorConstant(handle(info->name(), isolate), |
| info, attribs); |
| script_map->AppendDescriptor(&d); |
| } |
| |
| { // eval_from_script_position |
| Handle<AccessorInfo> info = |
| factory->script_eval_from_script_position_accessor(); |
| Descriptor d = Descriptor::AccessorConstant(handle(info->name(), isolate), |
| info, attribs); |
| script_map->AppendDescriptor(&d); |
| } |
| |
| { // eval_from_function_name |
| Handle<AccessorInfo> info = |
| factory->script_eval_from_function_name_accessor(); |
| Descriptor d = Descriptor::AccessorConstant(handle(info->name(), isolate), |
| info, attribs); |
| script_map->AppendDescriptor(&d); |
| } |
| |
| { // source_url |
| Handle<AccessorInfo> info = factory->script_source_url_accessor(); |
| Descriptor d = Descriptor::AccessorConstant(handle(info->name(), isolate), |
| info, attribs); |
| script_map->AppendDescriptor(&d); |
| } |
| |
| { // source_mapping_url |
| Handle<AccessorInfo> info = factory->script_source_mapping_url_accessor(); |
| Descriptor d = Descriptor::AccessorConstant(handle(info->name(), isolate), |
| info, attribs); |
| script_map->AppendDescriptor(&d); |
| } |
| } |
| |
| { // -- A s y n c F u n c t i o n |
| // Builtin functions for AsyncFunction. |
| PrototypeIterator iter(native_context->async_function_map()); |
| Handle<JSObject> async_function_prototype(iter.GetCurrent<JSObject>()); |
| |
| Handle<JSFunction> async_function_constructor = InstallFunction( |
| container, "AsyncFunction", JS_FUNCTION_TYPE, |
| JSFunction::kSizeWithPrototype, 0, async_function_prototype, |
| Builtins::kAsyncFunctionConstructor); |
| async_function_constructor->set_prototype_or_initial_map( |
| native_context->async_function_map()); |
| async_function_constructor->shared()->DontAdaptArguments(); |
| async_function_constructor->shared()->SetConstructStub( |
| *BUILTIN_CODE(isolate, AsyncFunctionConstructor)); |
| async_function_constructor->shared()->set_length(1); |
| native_context->set_async_function_constructor(*async_function_constructor); |
| JSObject::ForceSetPrototype(async_function_constructor, |
| isolate->function_function()); |
| |
| JSObject::AddProperty( |
| async_function_prototype, factory->constructor_string(), |
| async_function_constructor, |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| JSFunction::SetPrototype(async_function_constructor, |
| async_function_prototype); |
| |
| { |
| Handle<JSFunction> function = |
| SimpleCreateFunction(isolate, factory->empty_string(), |
| Builtins::kAsyncFunctionAwaitCaught, 2, false); |
| native_context->set_async_function_await_caught(*function); |
| } |
| |
| { |
| Handle<JSFunction> function = |
| SimpleCreateFunction(isolate, factory->empty_string(), |
| Builtins::kAsyncFunctionAwaitUncaught, 2, false); |
| native_context->set_async_function_await_uncaught(*function); |
| } |
| |
| { |
| Handle<SharedFunctionInfo> info = SimpleCreateSharedFunctionInfo( |
| isolate, Builtins::kAsyncFunctionAwaitRejectClosure, |
| factory->empty_string(), 1); |
| native_context->set_async_function_await_reject_shared_fun(*info); |
| } |
| |
| { |
| Handle<SharedFunctionInfo> info = SimpleCreateSharedFunctionInfo( |
| isolate, Builtins::kAsyncFunctionAwaitResolveClosure, |
| factory->empty_string(), 1); |
| native_context->set_async_function_await_resolve_shared_fun(*info); |
| } |
| |
| { |
| Handle<JSFunction> function = |
| SimpleCreateFunction(isolate, factory->empty_string(), |
| Builtins::kAsyncFunctionPromiseCreate, 0, false); |
| native_context->set_async_function_promise_create(*function); |
| } |
| |
| { |
| Handle<JSFunction> function = SimpleCreateFunction( |
| isolate, factory->empty_string(), |
| Builtins::kAsyncFunctionPromiseRelease, 1, false); |
| native_context->set_async_function_promise_release(*function); |
| } |
| } |
| |
| { // -- 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 = InstallFunction( |
| container, "CallSite", JS_OBJECT_TYPE, JSObject::kHeaderSize, 0, |
| factory->the_hole_value(), Builtins::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())); |
| |
| struct FunctionInfo { |
| const char* name; |
| Builtins::Name id; |
| }; |
| |
| FunctionInfo infos[] = { |
| {"getColumnNumber", Builtins::kCallSitePrototypeGetColumnNumber}, |
| {"getEvalOrigin", Builtins::kCallSitePrototypeGetEvalOrigin}, |
| {"getFileName", Builtins::kCallSitePrototypeGetFileName}, |
| {"getFunction", Builtins::kCallSitePrototypeGetFunction}, |
| {"getFunctionName", Builtins::kCallSitePrototypeGetFunctionName}, |
| {"getLineNumber", Builtins::kCallSitePrototypeGetLineNumber}, |
| {"getMethodName", Builtins::kCallSitePrototypeGetMethodName}, |
| {"getPosition", Builtins::kCallSitePrototypeGetPosition}, |
| {"getScriptNameOrSourceURL", |
| Builtins::kCallSitePrototypeGetScriptNameOrSourceURL}, |
| {"getThis", Builtins::kCallSitePrototypeGetThis}, |
| {"getTypeName", Builtins::kCallSitePrototypeGetTypeName}, |
| {"isConstructor", Builtins::kCallSitePrototypeIsConstructor}, |
| {"isEval", Builtins::kCallSitePrototypeIsEval}, |
| {"isNative", Builtins::kCallSitePrototypeIsNative}, |
| {"isToplevel", Builtins::kCallSitePrototypeIsToplevel}, |
| {"toString", Builtins::kCallSitePrototypeToString}}; |
| |
| PropertyAttributes attrs = |
| static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY); |
| |
| Handle<JSFunction> fun; |
| for (const FunctionInfo& info : infos) { |
| SimpleInstallFunction(prototype, info.name, info.id, 0, true, attrs); |
| } |
| } |
| } |
| |
| #ifdef V8_INTL_SUPPORT |
| { // I n t l P l u r a l R u l e s |
| Handle<JSObject> plural_rules_prototype = |
| factory->NewJSObject(isolate->object_function(), TENURED); |
| // Install the @@toStringTag property on the {prototype}. |
| JSObject::AddProperty( |
| plural_rules_prototype, factory->to_string_tag_symbol(), |
| factory->Object_string(), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| Handle<JSFunction> plural_rules_constructor = InstallFunction( |
| container, "PluralRules", JS_OBJECT_TYPE, PluralRules::kSize, 0, |
| plural_rules_prototype, Builtins::kIllegal); |
| JSObject::AddProperty(plural_rules_prototype, factory->constructor_string(), |
| plural_rules_constructor, DONT_ENUM); |
| native_context->set_intl_plural_rules_function(*plural_rules_constructor); |
| } |
| #endif // V8_INTL_SUPPORT |
| } |
| |
| |
| #define EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(id) \ |
| void Genesis::InitializeGlobal_##id() {} |
| |
| EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_do_expressions) |
| EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_regexp_named_captures) |
| EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_regexp_property) |
| EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_function_sent) |
| EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_function_tostring) |
| EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_public_fields) |
| EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_private_fields) |
| EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_static_fields) |
| EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_class_fields) |
| EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_dynamic_import) |
| EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_import_meta) |
| EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_restrict_constructor_return) |
| EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_optional_catch_binding) |
| |
| void InstallPublicSymbol(Factory* factory, Handle<Context> native_context, |
| const char* name, Handle<Symbol> value) { |
| Handle<JSGlobalObject> global( |
| JSGlobalObject::cast(native_context->global_object())); |
| Handle<String> symbol_string = factory->InternalizeUtf8String("Symbol"); |
| Handle<JSObject> symbol = Handle<JSObject>::cast( |
| JSObject::GetProperty(global, symbol_string).ToHandleChecked()); |
| Handle<String> name_string = factory->InternalizeUtf8String(name); |
| PropertyAttributes attributes = |
| static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY); |
| JSObject::AddProperty(symbol, name_string, value, attributes); |
| } |
| |
| void Genesis::InitializeGlobal_harmony_sharedarraybuffer() { |
| if (!FLAG_harmony_sharedarraybuffer) return; |
| |
| Handle<JSGlobalObject> global(native_context()->global_object()); |
| Isolate* isolate = global->GetIsolate(); |
| Factory* factory = isolate->factory(); |
| |
| { |
| Handle<String> name = factory->InternalizeUtf8String("SharedArrayBuffer"); |
| JSObject::AddProperty(global, name, isolate->shared_array_buffer_fun(), |
| DONT_ENUM); |
| } |
| |
| { |
| Handle<String> name = factory->InternalizeUtf8String("Atomics"); |
| JSObject::AddProperty(global, name, isolate->atomics_object(), DONT_ENUM); |
| JSObject::AddProperty( |
| isolate->atomics_object(), factory->to_string_tag_symbol(), name, |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| } |
| } |
| |
| void Genesis::InitializeGlobal_harmony_array_prototype_values() { |
| if (!FLAG_harmony_array_prototype_values) return; |
| Handle<JSFunction> array_constructor(native_context()->array_function()); |
| Handle<JSObject> array_prototype( |
| JSObject::cast(array_constructor->instance_prototype())); |
| Handle<Object> values_iterator = |
| JSObject::GetProperty(array_prototype, factory()->iterator_symbol()) |
| .ToHandleChecked(); |
| DCHECK(values_iterator->IsJSFunction()); |
| JSObject::AddProperty(array_prototype, factory()->values_string(), |
| values_iterator, DONT_ENUM); |
| |
| Handle<Object> unscopables = |
| JSObject::GetProperty(array_prototype, factory()->unscopables_symbol()) |
| .ToHandleChecked(); |
| DCHECK(unscopables->IsJSObject()); |
| JSObject::AddProperty(Handle<JSObject>::cast(unscopables), |
| factory()->values_string(), factory()->true_value(), |
| NONE); |
| } |
| |
| void Genesis::InitializeGlobal_harmony_promise_finally() { |
| if (!FLAG_harmony_promise_finally) return; |
| |
| Handle<JSFunction> constructor(native_context()->promise_function()); |
| Handle<JSObject> prototype(JSObject::cast(constructor->instance_prototype())); |
| SimpleInstallFunction(prototype, "finally", |
| Builtins::kPromisePrototypeFinally, 1, true, DONT_ENUM); |
| |
| // The promise prototype map has changed because we added a property |
| // to prototype, so we update the saved map. |
| Handle<Map> prototype_map(prototype->map()); |
| Map::SetShouldBeFastPrototypeMap(prototype_map, true, isolate()); |
| native_context()->set_promise_prototype_map(*prototype_map); |
| |
| { |
| Handle<SharedFunctionInfo> info = SimpleCreateSharedFunctionInfo( |
| isolate(), Builtins::kPromiseThenFinally, factory()->empty_string(), 1); |
| info->set_native(true); |
| native_context()->set_promise_then_finally_shared_fun(*info); |
| } |
| |
| { |
| Handle<SharedFunctionInfo> info = SimpleCreateSharedFunctionInfo( |
| isolate(), Builtins::kPromiseCatchFinally, factory()->empty_string(), |
| 1); |
| info->set_native(true); |
| native_context()->set_promise_catch_finally_shared_fun(*info); |
| } |
| |
| { |
| Handle<SharedFunctionInfo> info = SimpleCreateSharedFunctionInfo( |
| isolate(), Builtins::kPromiseValueThunkFinally, |
| factory()->empty_string(), 0); |
| native_context()->set_promise_value_thunk_finally_shared_fun(*info); |
| } |
| |
| { |
| Handle<SharedFunctionInfo> info = SimpleCreateSharedFunctionInfo( |
| isolate(), Builtins::kPromiseThrowerFinally, factory()->empty_string(), |
| 0); |
| native_context()->set_promise_thrower_finally_shared_fun(*info); |
| } |
| } |
| |
| void Genesis::InitializeGlobal_harmony_bigint() { |
| if (!FLAG_harmony_bigint) return; |
| |
| Factory* factory = isolate()->factory(); |
| Handle<JSGlobalObject> global(native_context()->global_object()); |
| Handle<JSFunction> bigint_fun = |
| InstallFunction(global, "BigInt", JS_VALUE_TYPE, JSValue::kSize, 0, |
| factory->the_hole_value(), Builtins::kBigIntConstructor); |
| bigint_fun->shared()->set_builtin_function_id(kBigIntConstructor); |
| bigint_fun->shared()->DontAdaptArguments(); |
| bigint_fun->shared()->SetConstructStub( |
| *BUILTIN_CODE(isolate(), BigIntConstructor_ConstructStub)); |
| bigint_fun->shared()->set_length(1); |
| InstallWithIntrinsicDefaultProto(isolate(), bigint_fun, |
| Context::BIGINT_FUNCTION_INDEX); |
| heap()->bigint_map()->SetConstructorFunctionIndex( |
| Context::BIGINT_FUNCTION_INDEX); |
| |
| // Install the properties of the BigInt constructor. |
| // parseInt(string, radix) |
| SimpleInstallFunction(bigint_fun, "parseInt", Builtins::kBigIntParseInt, 2, |
| false); |
| // asUintN(bits, bigint) |
| SimpleInstallFunction(bigint_fun, "asUintN", Builtins::kBigIntAsUintN, 2, |
| false); |
| // asIntN(bits, bigint) |
| SimpleInstallFunction(bigint_fun, "asIntN", Builtins::kBigIntAsIntN, 2, |
| false); |
| |
| // Set up the %BigIntPrototype%. |
| Handle<JSObject> prototype(JSObject::cast(bigint_fun->instance_prototype())); |
| JSFunction::SetPrototype(bigint_fun, prototype); |
| |
| // Install the properties of the BigInt.prototype. |
| // "constructor" is created implicitly by InstallFunction() above. |
| // toLocaleString([reserved1 [, reserved2]]) |
| SimpleInstallFunction(prototype, "toLocaleString", |
| Builtins::kBigIntPrototypeToLocaleString, 0, false); |
| // toString([radix]) |
| SimpleInstallFunction(prototype, "toString", |
| Builtins::kBigIntPrototypeToString, 0, false); |
| // valueOf() |
| SimpleInstallFunction(prototype, "valueOf", Builtins::kBigIntPrototypeValueOf, |
| 0, false); |
| // @@toStringTag |
| JSObject::AddProperty(prototype, factory->to_string_tag_symbol(), |
| factory->BigInt_string(), |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| } |
| |
| #ifdef V8_INTL_SUPPORT |
| |
| void Genesis::InitializeGlobal_harmony_number_format_to_parts() { |
| if (!FLAG_harmony_number_format_to_parts) return; |
| Handle<JSObject> number_format_prototype(JSObject::cast( |
| native_context()->intl_number_format_function()->prototype())); |
| Handle<String> name = factory()->InternalizeUtf8String("formatToParts"); |
| InstallFunction(number_format_prototype, |
| SimpleCreateFunction( |
| isolate(), name, |
| Builtins::kNumberFormatPrototypeFormatToParts, 1, false), |
| name); |
| } |
| |
| void Genesis::InitializeGlobal_harmony_plural_rules() { |
| if (!FLAG_harmony_plural_rules) return; |
| |
| Handle<JSFunction> plural_rules( |
| native_context()->intl_plural_rules_function()); |
| Handle<JSObject> intl = Handle<JSObject>::cast( |
| JSReceiver::GetProperty( |
| Handle<JSReceiver>(native_context()->global_object()), |
| factory()->InternalizeUtf8String("Intl")) |
| .ToHandleChecked()); |
| JSObject::AddProperty(intl, factory()->InternalizeUtf8String("PluralRules"), |
| plural_rules, DONT_ENUM); |
| } |
| |
| #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(), TENURED); |
| JSObject::AddProperty(prototype, factory()->to_string_tag_symbol(), name, |
| static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); |
| |
| // Allocate the constructor with the given {prototype}. |
| Handle<JSFunction> array_buffer_fun = |
| CreateFunction(isolate(), name, JS_ARRAY_BUFFER_TYPE, |
| JSArrayBuffer::kSizeWithEmbedderFields, 0, prototype, |
| Builtins::kArrayBufferConstructor); |
| Handle<Code> code = |
| BUILTIN_CODE(isolate(), ArrayBufferConstructor_ConstructStub); |
| array_buffer_fun->shared()->SetConstructStub(*code); |
| array_buffer_fun->shared()->DontAdaptArguments(); |
| array_buffer_fun->shared()->set_length(1); |
| array_buffer_fun->shared()->set_instance_class_name(*name); |
| |
| // Install the "constructor" property on the {prototype}. |
| JSObject::AddProperty(prototype, factory()->constructor_string(), |
| array_buffer_fun, DONT_ENUM); |
| |
| switch (array_buffer_kind) { |
| case ARRAY_BUFFER: |
| SimpleInstallFunction(array_buffer_fun, factory()->isView_string(), |
| Builtins::kArrayBufferIsView, 1, true, DONT_ENUM, |
| kArrayBufferIsView); |
| |
| // Install the "byteLength" getter on the {prototype}. |
| SimpleInstallGetter(prototype, factory()->byte_length_string(), |
| Builtins::kArrayBufferPrototypeGetByteLength, false, |
| BuiltinFunctionId::kArrayBufferByteLength); |
| |
| SimpleInstallFunction(prototype, "slice", |
| Builtins::kArrayBufferPrototypeSlice, 2, true); |
| break; |
| |
| case SHARED_ARRAY_BUFFER: |
| // Install the "byteLength" getter on the {prototype}. |
| SimpleInstallGetter(prototype, factory()->byte_length_string(), |
| Builtins::kSharedArrayBufferPrototypeGetByteLength, |
| false, |
| BuiltinFunctionId::kSharedArrayBufferByteLength); |
| |
| SimpleInstallFunction(prototype, "slice", |
| Builtins::kSharedArrayBufferPrototypeSlice, 2, |
| true); |
| break; |
| } |
| |
| return array_buffer_fun; |
| } |
| |
| |
| Handle<JSFunction> Genesis::InstallInternalArray(Handle<JSObject> target, |
| const char* name, |
| ElementsKind elements_kind) { |
| // --- I n t e r n a l A r r a y --- |
| // An array constructor on the builtins object that works like |
| // the public Array constructor, except that its prototype |
| // doesn't inherit from Object.prototype. |
| // To be used only for internal work by builtins. Instances |
| // must not be leaked to user code. |
| Handle<JSObject> prototype = |
| factory()->NewJSObject(isolate()->object_function(), TENURED); |
| Handle<JSFunction> array_function = |
| InstallFunction(target, name, JS_ARRAY_TYPE, JSArray::kSize, 0, prototype, |
| Builtins::kInternalArrayConstructor); |
| |
| InternalArrayConstructorStub internal_array_constructor_stub(isolate()); |
| Handle<Code> code = internal_array_constructor_stub.GetCode(); |
| array_function->shared()->SetConstructStub(*code); |
| array_function->shared()->DontAdaptArguments(); |
| |
| Handle<Map> original_map(array_function->initial_map()); |
| Handle<Map> initial_map = Map::Copy(original_map, "InternalArray"); |
| initial_map->set_elements_kind(elements_kind); |
| JSFunction::SetInitialMap(array_function, initial_map, prototype); |
| |
| // Make "length" magic on instances. |
| Map::EnsureDescriptorSlack(initial_map, 1); |
| |
| PropertyAttributes attribs = static_cast<PropertyAttributes>( |
| DONT_ENUM | DONT_DELETE); |
| |
| { // Add length. |
| Descriptor d = Descriptor::AccessorConstant( |
| factory()->length_string(), factory()->array_length_accessor(), |
| attribs); |
| initial_map->AppendDescriptor(&d); |
| } |
| |
| return array_function; |
| } |
| |
| bool Genesis::InstallNatives(GlobalContextType context_type) { |
| HandleScope scope(isolate()); |
| |
| // Set up the utils object as shared container between native scripts. |
| Handle<JSObject> utils = factory()->NewJSObject(isolate()->object_function()); |
| JSObject::NormalizeProperties(utils, CLEAR_INOBJECT_PROPERTIES, 16, |
| "utils container for native scripts"); |
| native_context()->set_natives_utils_object(*utils); |
| |
| // Set up the extras utils object as a shared container between native |
| // scripts and extras. (Extras consume things added there by native scripts.) |
| Handle<JSObject> extras_utils = |
| factory()->NewJSObject(isolate()->object_function()); |
| native_context()->set_extras_utils_object(*extras_utils); |
| |
| InstallInternalArray(extras_utils, "InternalPackedArray", PACKED_ELEMENTS); |
| |
| InstallFunction(extras_utils, isolate()->promise_internal_constructor(), |
| factory()->NewStringFromAsciiChecked("createPromise")); |
| InstallFunction(extras_utils, isolate()->promise_resolve(), |
| factory()->NewStringFromAsciiChecked("resolvePromise")); |
| InstallFunction(extras_utils, isolate()->is_promise(), |
| factory()->NewStringFromAsciiChecked("isPromise")); |
| |
| int builtin_index = Natives::GetDebuggerCount(); |
| // Only run prologue.js at this point. |
| DCHECK_EQ(builtin_index, Natives::GetIndex("prologue")); |
| if (!Bootstrapper::CompileBuiltin(isolate(), builtin_index++)) return false; |
| |
| { |
| // Builtin function for OpaqueReference -- a JSValue-based object, |
| // that keeps its field isolated from JavaScript code. It may store |
| // objects, that JavaScript code may not access. |
| Handle<JSObject> prototype = |
| factory()->NewJSObject(isolate()->object_function(), TENURED); |
| Handle<JSFunction> opaque_reference_fun = |
| CreateFunction(isolate(), factory()->empty_string(), JS_VALUE_TYPE, |
| JSValue::kSize, 0, prototype, Builtins::kIllegal); |
| native_context()->set_opaque_reference_function(*opaque_reference_fun); |
| } |
| |
| // InternalArrays should not use Smi-Only array optimizations. There are too |
| // many places in the C++ runtime code (e.g. RegEx) that assume that |
| // elements in InternalArrays can be set to non-Smi values without going |
| // through a common bottleneck that would make the SMI_ONLY -> FAST_ELEMENT |
| // transition easy to trap. Moreover, they rarely are smi-only. |
| { |
| HandleScope scope(isolate()); |
| Handle<JSObject> utils = |
| Handle<JSObject>::cast(isolate()->natives_utils_object()); |
| Handle<JSFunction> array_function = |
| InstallInternalArray(utils, "InternalArray", HOLEY_ELEMENTS); |
| native_context()->set_internal_array_function(*array_function); |
| } |
| |
| // Run the rest of the native scripts. |
| while (builtin_index < Natives::GetBuiltinsCount()) { |
| if (!Bootstrapper::CompileBuiltin(isolate(), builtin_index++)) return false; |
| } |
| |
| if (!CallUtilsFunction(isolate(), "PostNatives")) return false; |
| auto fast_template_instantiations_cache = isolate()->factory()->NewFixedArray( |
| TemplateInfo::kFastTemplateInstantiationsCacheSize); |
| native_context()->set_fast_template_instantiations_cache( |
| *fast_template_instantiations_cache); |
| |
| auto slow_template_instantiations_cache = |
| NumberDictionary::New(isolate(), ApiNatives::kInitialFunctionCacheSize); |
| native_context()->set_slow_template_instantiations_cache( |
| *slow_template_instantiations_cache); |
| |
| // 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()); |
| DCHECK(JSObject::cast(object_function->initial_map()->prototype()) |
| ->HasFastProperties()); |
| 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()); |
| 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()); |
| |
| // Install Global.decodeURI. |
| SimpleInstallFunction(global_object, "decodeURI", Builtins::kGlobalDecodeURI, |
| 1, false, kGlobalDecodeURI); |
| |
| // Install Global.decodeURIComponent. |
| SimpleInstallFunction(global_object, "decodeURIComponent", |
| Builtins::kGlobalDecodeURIComponent, 1, false, |
| kGlobalDecodeURIComponent); |
| |
| // Install Global.encodeURI. |
| SimpleInstallFunction(global_object, "encodeURI", Builtins::kGlobalEncodeURI, |
| 1, false, kGlobalEncodeURI); |
| |
| // Install Global.encodeURIComponent. |
| SimpleInstallFunction(global_object, "encodeURIComponent", |
| Builtins::kGlobalEncodeURIComponent, 1, false, |
| kGlobalEncodeURIComponent); |
| |
| // Install Global.escape. |
| SimpleInstallFunction(global_object, "escape", Builtins::kGlobalEscape, 1, |
| false, kGlobalEscape); |
| |
| // Install Global.unescape. |
| SimpleInstallFunction(global_object, "unescape", Builtins::kGlobalUnescape, 1, |
| false, kGlobalUnescape); |
| |
| // Install Global.eval. |
| { |
| Handle<JSFunction> eval = |
| SimpleInstallFunction(global_object, factory()->eval_string(), |
| Builtins::kGlobalEval, 1, false); |
| native_context()->set_global_eval_fun(*eval); |
| } |
| |
| // Install Global.isFinite |
| SimpleInstallFunction(global_object, "isFinite", Builtins::kGlobalIsFinite, 1, |
| true, kGlobalIsFinite); |
| |
| // Install Global.isNaN |
| SimpleInstallFunction(global_object, "isNaN", Builtins::kGlobalIsNaN, 1, true, |
| kGlobalIsNaN); |
| |
| // Install Array builtin functions. |
| { |
| Handle<JSFunction> array_constructor(native_context()->array_function()); |
| Handle<JSArray> proto(JSArray::cast(array_constructor->prototype())); |
| |
| // 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(heap()->empty_fixed_array()); |
| } |
| |
| // Install InternalArray.prototype.concat |
| { |
| Handle<JSFunction> array_constructor( |
| native_context()->internal_array_function()); |
| Handle<JSObject> proto(JSObject::cast(array_constructor->prototype())); |
| SimpleInstallFunction(proto, "concat", Builtins::kArrayConcat, 1, false); |
| } |
| |
| InstallBuiltinFunctionIds(); |
| |
| // 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(map, 4); |
| |
| { // get |
| Descriptor d = Descriptor::DataField( |
| factory()->get_string(), JSAccessorPropertyDescriptor::kGetIndex, |
| NONE, Representation::Tagged()); |
| map->AppendDescriptor(&d); |
| } |
| { // set |
| Descriptor d = Descriptor::DataField( |
| factory()->set_string(), JSAccessorPropertyDescriptor::kSetIndex, |
| NONE, Representation::Tagged()); |
| map->AppendDescriptor(&d); |
| } |
| { // enumerable |
| Descriptor d = |
| Descriptor::DataField(factory()->enumerable_string(), |
| JSAccessorPropertyDescriptor::kEnumerableIndex, |
| NONE, Representation::Tagged()); |
| map->AppendDescriptor(&d); |
| } |
| { // configurable |
| Descriptor d = Descriptor::DataField( |
| factory()->configurable_string(), |
| JSAccessorPropertyDescriptor::kConfigurableIndex, NONE, |
| Representation::Tagged()); |
| map->AppendDescriptor(&d); |
| } |
| |
| Map::SetPrototype(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(map, 4); |
| |
| { // value |
| Descriptor d = Descriptor::DataField( |
| factory()->value_string(), JSDataPropertyDescriptor::kValueIndex, |
| NONE, Representation::Tagged()); |
| map->AppendDescriptor(&d); |
| } |
| { // writable |
| Descriptor d = |
| Descriptor::DataField(factory()->writable_string(), |
| JSDataPropertyDescriptor::kWritableIndex, NONE, |
| Representation::Tagged()); |
| map->AppendDescriptor(&d); |
| } |
| { // enumerable |
| Descriptor d = |
| Descriptor::DataField(factory()->enumerable_string(), |
| JSDataPropertyDescriptor::kEnumerableIndex, |
| NONE, Representation::Tagged()); |
| map->AppendDescriptor(&d); |
| } |
| { // configurable |
| Descriptor d = |
| Descriptor::DataField(factory()->configurable_string(), |
| JSDataPropertyDescriptor::kConfigurableIndex, |
| NONE, Representation::Tagged()); |
| map->AppendDescriptor(&d); |
| } |
| |
| Map::SetPrototype(map, isolate()->initial_object_prototype()); |
| map->SetConstructor(native_context()->object_function()); |
| |
| native_context()->set_data_property_descriptor_map(*map); |
| } |
| |
| // Create a constructor for RegExp results (a variant of Array that |
| // predefines the properties index, input, and groups). |
| { |
| // JSRegExpResult initial map. |
| |
| // Find global.Array.prototype to inherit from. |
| Handle<JSFunction> array_constructor(native_context()->array_function()); |
| Handle<JSObject> array_prototype( |
| JSObject::cast(array_constructor->instance_prototype())); |
| |
| // Add initial map. |
| Handle<Map> initial_map = factory()->NewMap( |
| JS_ARRAY_TYPE, JSRegExpResult::kSize, TERMINAL_FAST_ELEMENTS_KIND, |
| JSRegExpResult::kInObjectPropertyCount); |
| initial_map->SetConstructor(*array_constructor); |
| |
| // Set prototype on map. |
| initial_map->set_has_non_instance_prototype(false); |
| Map::SetPrototype(initial_map, array_prototype); |
| |
| // Update map with length accessor from Array and add "index", "input" and |
| // "groups". |
| Map::EnsureDescriptorSlack(initial_map, |
| JSRegExpResult::kInObjectPropertyCount + 1); |
| |
| // length descriptor. |
| { |
| JSFunction* array_function = native_context()->array_function(); |
| Handle<DescriptorArray> array_descriptors( |
| array_function->initial_map()->instance_descriptors()); |
| Handle<String> length = factory()->length_string(); |
| int old = array_descriptors->SearchWithCache( |
| isolate(), *length, array_function->initial_map()); |
| DCHECK_NE(old, DescriptorArray::kNotFound); |
| Descriptor d = Descriptor::AccessorConstant( |
| length, handle(array_descriptors->GetValue(old), isolate()), |
| array_descriptors->GetDetails(old).attributes()); |
| initial_map->AppendDescriptor(&d); |
| } |
| |
| // index descriptor. |
| { |
| Descriptor d = Descriptor::DataField(factory()->index_string(), |
| JSRegExpResult::kIndexIndex, NONE, |
| Representation::Tagged()); |
| initial_map->AppendDescriptor(&d); |
| } |
| |
| // input descriptor. |
| { |
| Descriptor d = Descriptor::DataField(factory()->input_string(), |
| JSRegExpResult::kInputIndex, NONE, |
| Representation::Tagged()); |
| initial_map->AppendDescriptor(&d); |
| } |
| |
| // groups descriptor. |
| { |
| Descriptor d = Descriptor::DataField(factory()->groups_string(), |
| JSRegExpResult::kGroupsIndex, NONE, |
| Representation::Tagged()); |
| initial_map->AppendDescriptor(&d); |
| } |
| |
| native_context()->set_regexp_result_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()); |
| Map::EnsureDescriptorSlack(map, 1); |
| map->AppendDescriptor(&d); |
| } |
| { |
| Descriptor d = Descriptor::AccessorConstant(factory()->iterator_symbol(), |
| arguments_iterator, attribs); |
| Handle<Map> map(native_context()->fast_aliased_arguments_map()); |
| Map::EnsureDescriptorSlack(map, 1); |
| map->AppendDescriptor(&d); |
| } |
| { |
| Descriptor d = Descriptor::AccessorConstant(factory()->iterator_symbol(), |
| arguments_iterator, attribs); |
| Handle<Map> map(native_context()->slow_aliased_arguments_map()); |
| Map::EnsureDescriptorSlack(map, 1); |
| map->AppendDescriptor(&d); |
| } |
| { |
| Descriptor d = Descriptor::AccessorConstant(factory()->iterator_symbol(), |
| arguments_iterator, attribs); |
| Handle<Map> map(native_context()->strict_arguments_map()); |
| Map::EnsureDescriptorSlack(map, 1); |
| map->AppendDescriptor(&d); |
| } |
| } |
| |
| return true; |
| } |
| |
| bool Genesis::InstallExtraNatives() { |
| HandleScope scope(isolate()); |
| |
| Handle<JSObject> extras_binding = |
| factory()->NewJSObject(isolate()->object_function()); |
| native_context()->set_extras_binding_object(*extras_binding); |
| |
| for (int i = ExtraNatives::GetDebuggerCount(); |
| i < ExtraNatives::GetBuiltinsCount(); i++) { |
| if (!Bootstrapper::CompileExtraBuiltin(isolate(), i)) return false; |
| } |
| |
| return true; |
| } |
| |
| |
| bool Genesis::InstallExperimentalExtraNatives() { |
| for (int i = ExperimentalExtraNatives::GetDebuggerCount(); |
| i < ExperimentalExtraNatives::GetBuiltinsCount(); i++) { |
| if (!Bootstrapper::CompileExperimentalExtraBuiltin(isolate(), i)) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| |
| bool Genesis::InstallDebuggerNatives() { |
| for (int i = 0; i < Natives::GetDebuggerCount(); ++i) { |
| if (!Bootstrapper::CompileBuiltin(isolate(), i)) return false; |
| } |
| return true; |
| } |
| |
| |
| static void InstallBuiltinFunctionId(Handle<JSObject> holder, |
| const char* function_name, |
| BuiltinFunctionId id) { |
| Isolate* isolate = holder->GetIsolate(); |
| Handle<Object> function_object = |
| JSReceiver::GetProperty(isolate, holder, function_name).ToHandleChecked(); |
| Handle<JSFunction> function = Handle<JSFunction>::cast(function_object); |
| function->shared()->set_builtin_function_id(id); |
| } |
| |
| |
| #define INSTALL_BUILTIN_ID(holder_expr, fun_name, name) \ |
| { #holder_expr, #fun_name, k##name } \ |
| , |
| |
| |
| void Genesis::InstallBuiltinFunctionIds() { |
| HandleScope scope(isolate()); |
| struct BuiltinFunctionIds { |
| const char* holder_expr; |
| const char* fun_name; |
| BuiltinFunctionId id; |
| }; |
| |
| const BuiltinFunctionIds builtins[] = { |
| FUNCTIONS_WITH_ID_LIST(INSTALL_BUILTIN_ID)}; |
| |
| for (const BuiltinFunctionIds& builtin : builtins) { |
| Handle<JSObject> holder = |
| ResolveBuiltinIdHolder(native_context(), builtin.holder_expr); |
| InstallBuiltinFunctionId(holder, builtin.fun_name, builtin.id); |
| } |
| } |
| |
| #undef INSTALL_BUILTIN_ID |
| |
| |
| void Genesis::InitializeNormalizedMapCaches() { |
| Handle<NormalizedMapCache> cache = NormalizedMapCache::New(isolate()); |
| native_context()->set_normalized_map_cache(*cache); |
| } |
| |
| |
| bool Bootstrapper::InstallExtensions(Handle<Context> native_context, |
| v8::ExtensionConfiguration* extensions) { |
| BootstrapperActive active(this); |
| SaveContext saved_context(isolate_); |
| isolate_->set_context(*native_context); |
| return Genesis::InstallExtensions(native_context, extensions) && |
| Genesis::InstallSpecialObjects(native_context); |
| } |
| |
| |
| bool Genesis::InstallSpecialObjects(Handle<Context> native_context) { |
| Isolate* isolate = native_context->GetIsolate(); |
| // Don't install extensions into the snapshot. |
| if (isolate->serializer_enabled()) return true; |
| |
| Factory* factory = isolate->factory(); |
| HandleScope scope(isolate); |
| |
| Handle<JSObject> Error = isolate->error_function(); |
| Handle<String> name = |
| factory->InternalizeOneByteString(STATIC_CHAR_VECTOR("stackTraceLimit")); |
| Handle<Smi> stack_trace_limit(Smi::FromInt(FLAG_stack_trace_limit), isolate); |
| JSObject::AddProperty(Error, name, stack_trace_limit, NONE); |
| |
| if (FLAG_expose_wasm) { |
| // Install the internal data structures into the isolate and expose on |
| // the global object. |
| WasmJs::Install(isolate, true); |
| } else if (FLAG_validate_asm) { |
| // Install the internal data structures only; these are needed for asm.js |
| // translated to WASM to work correctly. |
| WasmJs::Install(isolate, false); |
| } |
| |
| 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(Handle<Context> native_context, |
| v8::ExtensionConfiguration* extensions) { |
| Isolate* isolate = native_context->GetIsolate(); |
| ExtensionStates extension_states; // All extensions have state UNVISITED. |
| return InstallAutoExtensions(isolate, &extension_states) && |
| (!FLAG_expose_free_buffer || |
| InstallExtension(isolate, "v8/free-buffer", &extension_states)) && |
| (!FLAG_expose_gc || |
| InstallExtension(isolate, "v8/gc", &extension_states)) && |
| (!FLAG_expose_externalize_string || |
| InstallExtension(isolate, "v8/externalize", &extension_states)) && |
| (!FLAG_gc_stats || |
| InstallExtension(isolate, "v8/statistics", &extension_states)) && |
| (!FLAG_expose_trigger_failure || |
| InstallExtension(isolate, "v8/trigger-failure", &extension_states)) && |
| (!FLAG_trace_ignition_dispatches || |
| InstallExtension(isolate, "v8/ignition-statistics", |
| &extension_states)) && |
| 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; |
| } |
| } |
| // We do not expect this to throw an exception. Change this if it does. |
| bool result = CompileExtension(isolate, extension); |
| DCHECK(isolate->has_pending_exception() != result); |
| if (!result) { |
| // 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(); |
| } |
| extension_states->set_state(current, INSTALLED); |
| return result; |
| } |
| |
| |
| bool Genesis::ConfigureGlobalObjects( |
| v8::Local<v8::ObjectTemplate> global_proxy_template) { |
| Handle<JSObject> global_proxy( |
| JSObject::cast(native_context()->global_proxy())); |
| Handle<JSObject> global_object( |
| JSObject::cast(native_context()->global_object())); |
| |
| 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())); |
| if (!proxy_constructor->prototype_template()->IsUndefined(isolate())) { |
| Handle<ObjectTemplateInfo> global_object_data( |
| ObjectTemplateInfo::cast(proxy_constructor->prototype_template())); |
| if (!ConfigureApiObject(global_object, global_object_data)) return false; |
| } |
| } |
| |
| JSObject::ForceSetPrototype(global_proxy, global_object); |
| |
| native_context()->set_array_buffer_map( |
| native_context()->array_buffer_fun()->initial_map()); |
| |
| Handle<JSFunction> js_map_fun(native_context()->js_map_fun()); |
| Handle<JSFunction> js_set_fun(native_context()->js_set_fun()); |
| // Force the Map/Set constructor to fast properties, so that we can use the |
| // fast paths for various things like |
| // |
| // x instanceof Map |
| // x instanceof Set |
| // |
| // etc. We should probably come up with a more principled approach once |
| // the JavaScript builtins are gone. |
| JSObject::MigrateSlowToFast(js_map_fun, 0, "Bootstrapping"); |
| JSObject::MigrateSlowToFast(js_set_fun, 0, "Bootstrapping"); |
| |
| native_context()->set_js_map_map(js_map_fun->initial_map()); |
| native_context()->set_js_set_map(js_set_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_template); |
| Handle<JSObject> obj; |
| if (!maybe_obj.ToHandle(&obj)) { |
| DCHECK(isolate()->has_pending_exception()); |
| isolate()->clear_pending_exception(); |
| return false; |
| } |
| TransferObject(obj, object); |
| return true; |
| } |
| |
| |
| 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()); |
| for (int i = 0; i < from->map()->NumberOfOwnDescriptors(); i++) { |
| PropertyDetails details = descs->GetDetails(i); |
| if (details.location() == kField) { |
| if (details.kind() == kData) { |
| HandleScope inner(isolate()); |
| Handle<Name> key = Handle<Name>(descs->GetKey(i)); |
| FieldIndex index = FieldIndex::ForDescriptor(from->map(), i); |
| Handle<Object> value = |
| JSObject::FastPropertyAt(from, details.representation(), index); |
| JSObject::AddProperty(to, key, value, details.attributes()); |
| } else { |
| DCHECK_EQ(kAccessor, details.kind()); |
| UNREACHABLE(); |
| } |
| |
| } else { |
| DCHECK_EQ(kDescriptor, details.location()); |
| if (details.kind() == kData) { |
| DCHECK(!FLAG_track_constant_fields); |
| HandleScope inner(isolate()); |
| Handle<Name> key = Handle<Name>(descs->GetKey(i)); |
| Handle<Object> value(descs->GetValue(i), isolate()); |
| JSObject::AddProperty(to, key, value, details.attributes()); |
| |
| } else { |
| DCHECK_EQ(kAccessor, details.kind()); |
| Handle<Name> key(descs->GetKey(i)); |
| LookupIterator it(to, key, LookupIterator::OWN_SKIP_INTERCEPTOR); |
| CHECK_NE(LookupIterator::ACCESS_CHECK, it.state()); |
| // If the property is already there we skip it |
| if (it.IsFound()) continue; |
| HandleScope inner(isolate()); |
| DCHECK(!to->HasFastProperties()); |
| // Add to dictionary. |
| Handle<Object> value(descs->GetValue(i), isolate()); |
| PropertyDetails d(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()); |
| Handle<FixedArray> indices = GlobalDictionary::IterationIndices(properties); |
| for (int i = 0; i < indices->length(); i++) { |
| int index = Smi::ToInt(indices->get(i)); |
| // If the property is already there we skip it. |
| Handle<PropertyCell> cell(properties->CellAt(index)); |
| Handle<Name> key(cell->name(), isolate()); |
| LookupIterator it(to, key, LookupIterator::OWN_SKIP_INTERCEPTOR); |
| CHECK_NE(LookupIterator::ACCESS_CHECK, it.state()); |
| if (it.IsFound()) continue; |
| // Set the property. |
| Handle<Object> value(cell->value(), isolate()); |
| if (value->IsTheHole(isolate())) continue; |
| PropertyDetails details = cell->property_details(); |
| if (details.kind() != kData) continue; |
| JSObject::AddProperty(to, key, value, details.attributes()); |
| } |
| } else { |
| // Copy all keys and values in enumeration order. |
| Handle<NameDictionary> properties = |
| Handle<NameDictionary>(from->property_dictionary()); |
| Handle<FixedArray> key_indices = |
| NameDictionary::IterationIndices(properties); |
| for (int i = 0; i < key_indices->length(); i++) { |
| int key_index = Smi::ToInt(key_indices->get(i)); |
| Object* raw_key = properties->KeyAt(key_index); |
| DCHECK(properties->IsKey(isolate(), raw_key)); |
| DCHECK(raw_key->IsName()); |
| // If the property is already there we skip it. |
| Handle<Name> key(Name::cast(raw_key), isolate()); |
| LookupIterator it(to, key, LookupIterator::OWN_SKIP_INTERCEPTOR); |
| CHECK_NE(LookupIterator::ACCESS_CHECK, it.state()); |
| if (it.IsFound()) 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(kData, details.kind()); |
| JSObject::AddProperty(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())); |
| 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<Object> proto(from->map()->prototype(), isolate()); |
| JSObject::ForceSetPrototype(to, proto); |
| } |
| |
| |
| 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, |
| GlobalContextType context_type) |
| : 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); |
| |
| // During genesis, the boilerplate for stack overflow won't work until the |
| // environment has been at least partially initialized. Add a stack check |
| // before entering JS code to catch overflow early. |
| StackLimitCheck check(isolate); |
| if (check.HasOverflowed()) { |
| isolate->StackOverflow(); |
| return; |
| } |
| |
| // 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. |
| if (!isolate->initialized_from_snapshot() || |
| !Snapshot::NewContextFromSnapshot(isolate, global_proxy, |
| context_snapshot_index, |
| embedder_fields_deserializer) |
| .ToHandle(&native_context_)) { |
| native_context_ = Handle<Context>(); |
| } |
| |
| if (!native_context().is_null()) { |
| AddToWeakNativeContextList(*native_context()); |
| isolate->set_context(*native_context()); |
| isolate->counters()->contexts_created_by_snapshot()->Increment(); |
| |
| if (context_snapshot_index == 0) { |
| Handle<JSGlobalObject> global_object = |
| CreateNewGlobals(global_proxy_template, global_proxy); |
| HookUpGlobalObject(global_object); |
| |
| if (!ConfigureGlobalObjects(global_proxy_template)) return; |
| } else { |
| // The global proxy needs to be integrated into the native context. |
| HookUpGlobalProxy(global_proxy); |
| } |
| DCHECK(!global_proxy->IsDetachedFrom(native_context()->global_object())); |
| } else { |
| base::ElapsedTimer timer; |
| if (FLAG_profile_deserialization) timer.Start(); |
| DCHECK_EQ(0u, context_snapshot_index); |
| // We get here if there was no context snapshot. |
| CreateRoots(); |
| Handle<JSFunction> empty_function = CreateEmptyFunction(isolate); |
| 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); |
| InitializeGlobal(global_object, empty_function, context_type); |
| InitializeNormalizedMapCaches(); |
| |
| if (!InstallNatives(context_type)) return; |
| if (!InstallExtraNatives()) return; |
| if (!ConfigureGlobalObjects(global_proxy_template)) return; |
| |
| isolate->counters()->contexts_created_from_scratch()->Increment(); |
| |
| if (FLAG_profile_deserialization) { |
| double ms = timer.Elapsed().InMillisecondsF(); |
| i::PrintF("[Initializing context from scratch took %0.3f ms]\n", ms); |
| } |
| } |
| |
| // 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 (context_type == FULL_CONTEXT) { |
| if (!isolate->serializer_enabled()) { |
| InitializeExperimentalGlobal(); |
| |
| if (FLAG_experimental_extras) { |
| if (!InstallExperimentalExtraNatives()) return; |
| } |
| |
| // Store String.prototype's map again in case it has been changed by |
| // experimental natives. |
| Handle<JSFunction> string_function(native_context()->string_function()); |
| 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()); |
| } |
| } else if (context_type == DEBUG_CONTEXT) { |
| DCHECK(!isolate->serializer_enabled()); |
| InitializeExperimentalGlobal(); |
| if (!InstallDebuggerNatives()) return; |
| } |
| |
| if (FLAG_disallow_code_generation_from_strings) { |
| native_context()->set_allow_code_gen_from_strings( |
| isolate->heap()->false_value()); |
| } |
| |
| ConfigureUtilsObject(context_type); |
| |
| 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); |
| |
| // During genesis, the boilerplate for stack overflow won't work until the |
| // environment has been at least partially initialized. Add a stack check |
| // before entering JS code to catch overflow early. |
| StackLimitCheck check(isolate); |
| if (check.HasOverflowed()) { |
| isolate->StackOverflow(); |
| return; |
| } |
| |
| 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())); |
| |
| Handle<ObjectTemplateInfo> global_object_template( |
| ObjectTemplateInfo::cast(global_constructor->prototype_template())); |
| 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_has_hidden_prototype(true); |
| global_proxy_map->set_may_have_interesting_symbols(true); |
| |
| // A remote global proxy has no native context. |
| global_proxy->set_native_context(heap()->null_value()); |
| |
| // Configure the hidden prototype chain of the global proxy. |
| JSObject::ForceSetPrototype(global_proxy, global_object); |
| global_proxy->map()->SetConstructor(*global_constructor); |
| // TODO(dcheng): This is a hack. Why does this need to be manually called |
| // here? Line 4812 should have taken care of it? |
| global_proxy->map()->set_has_hidden_prototype(true); |
| |
| 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 |