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ladybird/Userland/Libraries/LibJS/Runtime/Intrinsics.cpp
Andreas Kling 3c74dc9f4d LibJS: Segregate GC-allocated objects by type 
This patch adds two macros to declare per-type allocators:

- JS_DECLARE_ALLOCATOR(TypeName)
- JS_DEFINE_ALLOCATOR(TypeName)

When used, they add a type-specific CellAllocator that the Heap will
delegate allocation requests to.

The result of this is that GC objects of the same type always end up
within the same HeapBlock, drastically reducing the ability to perform
type confusion attacks.

It also improves HeapBlock utilization, since each block now has cells
sized exactly to the type used within that block. (Previously we only
had a handful of block sizes available, and most GC allocations ended
up with a large amount of slack in their tails.)

There is a small performance hit from this, but I'm sure we can make
up for it elsewhere.

Note that the old size-based allocators still exist, and we fall back
to them for any type that doesn't have its own CellAllocator.
2023-11-19 12:10:31 +01:00

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/*
* Copyright (c) 2022-2023, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/AggregateErrorConstructor.h>
#include <LibJS/Runtime/AggregateErrorPrototype.h>
#include <LibJS/Runtime/ArrayBufferConstructor.h>
#include <LibJS/Runtime/ArrayBufferPrototype.h>
#include <LibJS/Runtime/ArrayConstructor.h>
#include <LibJS/Runtime/ArrayIteratorPrototype.h>
#include <LibJS/Runtime/ArrayPrototype.h>
#include <LibJS/Runtime/AsyncFromSyncIteratorPrototype.h>
#include <LibJS/Runtime/AsyncFunctionConstructor.h>
#include <LibJS/Runtime/AsyncFunctionPrototype.h>
#include <LibJS/Runtime/AsyncGeneratorFunctionConstructor.h>
#include <LibJS/Runtime/AsyncGeneratorFunctionPrototype.h>
#include <LibJS/Runtime/AsyncGeneratorPrototype.h>
#include <LibJS/Runtime/AsyncIteratorPrototype.h>
#include <LibJS/Runtime/AtomicsObject.h>
#include <LibJS/Runtime/BigIntConstructor.h>
#include <LibJS/Runtime/BigIntPrototype.h>
#include <LibJS/Runtime/BooleanConstructor.h>
#include <LibJS/Runtime/BooleanPrototype.h>
#include <LibJS/Runtime/ConsoleObject.h>
#include <LibJS/Runtime/DataViewConstructor.h>
#include <LibJS/Runtime/DataViewPrototype.h>
#include <LibJS/Runtime/DateConstructor.h>
#include <LibJS/Runtime/DatePrototype.h>
#include <LibJS/Runtime/DisposableStackConstructor.h>
#include <LibJS/Runtime/DisposableStackPrototype.h>
#include <LibJS/Runtime/ErrorConstructor.h>
#include <LibJS/Runtime/ErrorPrototype.h>
#include <LibJS/Runtime/FinalizationRegistryConstructor.h>
#include <LibJS/Runtime/FinalizationRegistryPrototype.h>
#include <LibJS/Runtime/FunctionConstructor.h>
#include <LibJS/Runtime/FunctionPrototype.h>
#include <LibJS/Runtime/GeneratorFunctionConstructor.h>
#include <LibJS/Runtime/GeneratorFunctionPrototype.h>
#include <LibJS/Runtime/GeneratorPrototype.h>
#include <LibJS/Runtime/Intl/CollatorConstructor.h>
#include <LibJS/Runtime/Intl/CollatorPrototype.h>
#include <LibJS/Runtime/Intl/DateTimeFormatConstructor.h>
#include <LibJS/Runtime/Intl/DateTimeFormatPrototype.h>
#include <LibJS/Runtime/Intl/DisplayNamesConstructor.h>
#include <LibJS/Runtime/Intl/DisplayNamesPrototype.h>
#include <LibJS/Runtime/Intl/DurationFormatConstructor.h>
#include <LibJS/Runtime/Intl/DurationFormatPrototype.h>
#include <LibJS/Runtime/Intl/Intl.h>
#include <LibJS/Runtime/Intl/ListFormatConstructor.h>
#include <LibJS/Runtime/Intl/ListFormatPrototype.h>
#include <LibJS/Runtime/Intl/LocaleConstructor.h>
#include <LibJS/Runtime/Intl/LocalePrototype.h>
#include <LibJS/Runtime/Intl/NumberFormatConstructor.h>
#include <LibJS/Runtime/Intl/NumberFormatPrototype.h>
#include <LibJS/Runtime/Intl/PluralRulesConstructor.h>
#include <LibJS/Runtime/Intl/PluralRulesPrototype.h>
#include <LibJS/Runtime/Intl/RelativeTimeFormatConstructor.h>
#include <LibJS/Runtime/Intl/RelativeTimeFormatPrototype.h>
#include <LibJS/Runtime/Intl/SegmentIteratorPrototype.h>
#include <LibJS/Runtime/Intl/SegmenterConstructor.h>
#include <LibJS/Runtime/Intl/SegmenterPrototype.h>
#include <LibJS/Runtime/Intl/SegmentsPrototype.h>
#include <LibJS/Runtime/Intrinsics.h>
#include <LibJS/Runtime/IteratorConstructor.h>
#include <LibJS/Runtime/IteratorHelperPrototype.h>
#include <LibJS/Runtime/IteratorPrototype.h>
#include <LibJS/Runtime/JSONObject.h>
#include <LibJS/Runtime/MapConstructor.h>
#include <LibJS/Runtime/MapIteratorPrototype.h>
#include <LibJS/Runtime/MapPrototype.h>
#include <LibJS/Runtime/MathObject.h>
#include <LibJS/Runtime/NativeFunction.h>
#include <LibJS/Runtime/NumberConstructor.h>
#include <LibJS/Runtime/NumberPrototype.h>
#include <LibJS/Runtime/ObjectConstructor.h>
#include <LibJS/Runtime/ObjectPrototype.h>
#include <LibJS/Runtime/PromiseConstructor.h>
#include <LibJS/Runtime/PromisePrototype.h>
#include <LibJS/Runtime/ProxyConstructor.h>
#include <LibJS/Runtime/Realm.h>
#include <LibJS/Runtime/ReflectObject.h>
#include <LibJS/Runtime/RegExpConstructor.h>
#include <LibJS/Runtime/RegExpPrototype.h>
#include <LibJS/Runtime/RegExpStringIteratorPrototype.h>
#include <LibJS/Runtime/SetConstructor.h>
#include <LibJS/Runtime/SetIteratorPrototype.h>
#include <LibJS/Runtime/SetPrototype.h>
#include <LibJS/Runtime/ShadowRealmConstructor.h>
#include <LibJS/Runtime/ShadowRealmPrototype.h>
#include <LibJS/Runtime/Shape.h>
#include <LibJS/Runtime/SharedArrayBufferConstructor.h>
#include <LibJS/Runtime/SharedArrayBufferPrototype.h>
#include <LibJS/Runtime/StringConstructor.h>
#include <LibJS/Runtime/StringIteratorPrototype.h>
#include <LibJS/Runtime/StringPrototype.h>
#include <LibJS/Runtime/SuppressedErrorConstructor.h>
#include <LibJS/Runtime/SuppressedErrorPrototype.h>
#include <LibJS/Runtime/SymbolConstructor.h>
#include <LibJS/Runtime/SymbolPrototype.h>
#include <LibJS/Runtime/Temporal/CalendarConstructor.h>
#include <LibJS/Runtime/Temporal/CalendarPrototype.h>
#include <LibJS/Runtime/Temporal/DurationConstructor.h>
#include <LibJS/Runtime/Temporal/DurationPrototype.h>
#include <LibJS/Runtime/Temporal/InstantConstructor.h>
#include <LibJS/Runtime/Temporal/InstantPrototype.h>
#include <LibJS/Runtime/Temporal/PlainDateConstructor.h>
#include <LibJS/Runtime/Temporal/PlainDatePrototype.h>
#include <LibJS/Runtime/Temporal/PlainDateTimeConstructor.h>
#include <LibJS/Runtime/Temporal/PlainDateTimePrototype.h>
#include <LibJS/Runtime/Temporal/PlainMonthDayConstructor.h>
#include <LibJS/Runtime/Temporal/PlainMonthDayPrototype.h>
#include <LibJS/Runtime/Temporal/PlainTimeConstructor.h>
#include <LibJS/Runtime/Temporal/PlainTimePrototype.h>
#include <LibJS/Runtime/Temporal/PlainYearMonthConstructor.h>
#include <LibJS/Runtime/Temporal/PlainYearMonthPrototype.h>
#include <LibJS/Runtime/Temporal/Temporal.h>
#include <LibJS/Runtime/Temporal/TimeZoneConstructor.h>
#include <LibJS/Runtime/Temporal/TimeZonePrototype.h>
#include <LibJS/Runtime/Temporal/ZonedDateTimeConstructor.h>
#include <LibJS/Runtime/Temporal/ZonedDateTimePrototype.h>
#include <LibJS/Runtime/TypedArray.h>
#include <LibJS/Runtime/TypedArrayConstructor.h>
#include <LibJS/Runtime/TypedArrayPrototype.h>
#include <LibJS/Runtime/WeakMapConstructor.h>
#include <LibJS/Runtime/WeakMapPrototype.h>
#include <LibJS/Runtime/WeakRefConstructor.h>
#include <LibJS/Runtime/WeakRefPrototype.h>
#include <LibJS/Runtime/WeakSetConstructor.h>
#include <LibJS/Runtime/WeakSetPrototype.h>
#include <LibJS/Runtime/WrapForValidIteratorPrototype.h>
namespace JS {
JS_DEFINE_ALLOCATOR(Intrinsics);
static void initialize_constructor(VM& vm, PropertyKey const& property_key, Object& constructor, Object* prototype, PropertyAttributes constructor_property_attributes = Attribute::Writable | Attribute::Configurable)
{
constructor.define_direct_property(vm.names.name, PrimitiveString::create(vm, property_key.as_string()), Attribute::Configurable);
if (prototype)
prototype->define_direct_property(vm.names.constructor, &constructor, constructor_property_attributes);
}
// 9.3.2 CreateIntrinsics ( realmRec ), https://tc39.es/ecma262/#sec-createintrinsics
ThrowCompletionOr<NonnullGCPtr<Intrinsics>> Intrinsics::create(Realm& realm)
{
auto& vm = realm.vm();
// 1. Set realmRec.[[Intrinsics]] to a new Record.
auto intrinsics = vm.heap().allocate_without_realm<Intrinsics>(realm);
realm.set_intrinsics({}, intrinsics);
// 2. Set fields of realmRec.[[Intrinsics]] with the values listed in Table 6.
// The field names are the names listed in column one of the table.
// The value of each field is a new object value fully and recursively populated
// with property values as defined by the specification of each object in
// clauses 19 through 28. All object property values are newly created object
// values. All values that are built-in function objects are created by performing
// CreateBuiltinFunction(steps, length, name, slots, realmRec, prototype)
// where steps is the definition of that function provided by this specification,
// name is the initial value of the function's "name" property, length is the
// initial value of the function's "length" property, slots is a list of the
// names, if any, of the function's specified internal slots, and prototype
// is the specified value of the function's [[Prototype]] internal slot. The
// creation of the intrinsics and their properties must be ordered to avoid
// any dependencies upon objects that have not yet been created.
MUST_OR_THROW_OOM(intrinsics->initialize_intrinsics(realm));
// 3. Perform AddRestrictedFunctionProperties(realmRec.[[Intrinsics]].[[%Function.prototype%]], realmRec).
add_restricted_function_properties(static_cast<FunctionObject&>(*realm.intrinsics().function_prototype()), realm);
// 4. Return unused.
return *intrinsics;
}
ThrowCompletionOr<void> Intrinsics::initialize_intrinsics(Realm& realm)
{
auto& vm = this->vm();
// These are done first since other prototypes depend on their presence.
m_empty_object_shape = heap().allocate_without_realm<Shape>(realm);
m_object_prototype = heap().allocate_without_realm<ObjectPrototype>(realm);
m_function_prototype = heap().allocate_without_realm<FunctionPrototype>(realm);
m_new_object_shape = heap().allocate_without_realm<Shape>(realm);
m_new_object_shape->set_prototype_without_transition(m_object_prototype);
m_new_ordinary_function_prototype_object_shape = heap().allocate_without_realm<Shape>(realm);
m_new_ordinary_function_prototype_object_shape->set_prototype_without_transition(m_object_prototype);
m_new_ordinary_function_prototype_object_shape->add_property_without_transition(vm.names.constructor, Attribute::Writable | Attribute::Configurable);
// Normally Heap::allocate() takes care of this, but these are allocated via allocate_without_realm().
m_function_prototype->initialize(realm);
m_object_prototype->initialize(realm);
#define __JS_ENUMERATE(ClassName, snake_name) \
VERIFY(!m_##snake_name##_prototype); \
m_##snake_name##_prototype = heap().allocate<ClassName##Prototype>(realm, realm);
JS_ENUMERATE_ITERATOR_PROTOTYPES
#undef __JS_ENUMERATE
// These must be initialized separately as they have no companion constructor
m_async_from_sync_iterator_prototype = heap().allocate<AsyncFromSyncIteratorPrototype>(realm, realm);
m_async_generator_prototype = heap().allocate<AsyncGeneratorPrototype>(realm, realm);
m_generator_prototype = heap().allocate<GeneratorPrototype>(realm, realm);
m_intl_segments_prototype = heap().allocate<Intl::SegmentsPrototype>(realm, realm);
m_wrap_for_valid_iterator_prototype = heap().allocate<WrapForValidIteratorPrototype>(realm, realm);
// These must be initialized before allocating...
// - AggregateErrorPrototype, which uses ErrorPrototype as its prototype
// - AggregateErrorConstructor, which uses ErrorConstructor as its prototype
// - AsyncFunctionConstructor, which uses FunctionConstructor as its prototype
m_error_prototype = heap().allocate<ErrorPrototype>(realm, realm);
m_error_constructor = heap().allocate<ErrorConstructor>(realm, realm);
m_function_constructor = heap().allocate<FunctionConstructor>(realm, realm);
// Not included in JS_ENUMERATE_NATIVE_OBJECTS due to missing distinct prototype
m_proxy_constructor = heap().allocate<ProxyConstructor>(realm, realm);
// Global object functions
m_eval_function = NativeFunction::create(realm, GlobalObject::eval, 1, vm.names.eval, &realm);
m_is_finite_function = NativeFunction::create(realm, GlobalObject::is_finite, 1, vm.names.isFinite, &realm);
m_is_nan_function = NativeFunction::create(realm, GlobalObject::is_nan, 1, vm.names.isNaN, &realm);
m_parse_float_function = NativeFunction::create(realm, GlobalObject::parse_float, 1, vm.names.parseFloat, &realm);
m_parse_int_function = NativeFunction::create(realm, GlobalObject::parse_int, 2, vm.names.parseInt, &realm);
m_decode_uri_function = NativeFunction::create(realm, GlobalObject::decode_uri, 1, vm.names.decodeURI, &realm);
m_decode_uri_component_function = NativeFunction::create(realm, GlobalObject::decode_uri_component, 1, vm.names.decodeURIComponent, &realm);
m_encode_uri_function = NativeFunction::create(realm, GlobalObject::encode_uri, 1, vm.names.encodeURI, &realm);
m_encode_uri_component_function = NativeFunction::create(realm, GlobalObject::encode_uri_component, 1, vm.names.encodeURIComponent, &realm);
m_escape_function = NativeFunction::create(realm, GlobalObject::escape, 1, vm.names.escape, &realm);
m_unescape_function = NativeFunction::create(realm, GlobalObject::unescape, 1, vm.names.unescape, &realm);
m_object_constructor = heap().allocate<ObjectConstructor>(realm, realm);
// 10.2.4.1 %ThrowTypeError% ( ), https://tc39.es/ecma262/#sec-%throwtypeerror%
m_throw_type_error_function = NativeFunction::create(
realm, [](VM& vm) {
return vm.throw_completion<TypeError>(ErrorType::RestrictedFunctionPropertiesAccess);
},
0, "", &realm);
m_throw_type_error_function->define_direct_property(vm.names.length, Value(0), 0);
m_throw_type_error_function->define_direct_property(vm.names.name, PrimitiveString::create(vm, String {}), 0);
MUST(m_throw_type_error_function->internal_prevent_extensions());
initialize_constructor(vm, vm.names.Error, *m_error_constructor, m_error_prototype);
initialize_constructor(vm, vm.names.Function, *m_function_constructor, m_function_prototype);
initialize_constructor(vm, vm.names.Object, *m_object_constructor, m_object_prototype);
initialize_constructor(vm, vm.names.Proxy, *m_proxy_constructor, nullptr);
initialize_constructor(vm, vm.names.GeneratorFunction, *generator_function_constructor(), generator_function_prototype(), Attribute::Configurable);
initialize_constructor(vm, vm.names.AsyncGeneratorFunction, *async_generator_function_constructor(), async_generator_function_prototype(), Attribute::Configurable);
initialize_constructor(vm, vm.names.AsyncFunction, *async_function_constructor(), async_function_prototype(), Attribute::Configurable);
// 27.5.1.1 Generator.prototype.constructor, https://tc39.es/ecma262/#sec-generator.prototype.constructor
m_generator_prototype->define_direct_property(vm.names.constructor, m_generator_function_prototype, Attribute::Configurable);
// 27.6.1.1 AsyncGenerator.prototype.constructor, https://tc39.es/ecma262/#sec-asyncgenerator-prototype-constructor
m_async_generator_prototype->define_direct_property(vm.names.constructor, m_async_generator_function_prototype, Attribute::Configurable);
m_array_prototype_values_function = &array_prototype()->get_without_side_effects(vm.names.values).as_function();
m_date_constructor_now_function = &date_constructor()->get_without_side_effects(vm.names.now).as_function();
m_json_parse_function = &json_object()->get_without_side_effects(vm.names.parse).as_function();
m_json_stringify_function = &json_object()->get_without_side_effects(vm.names.stringify).as_function();
m_object_prototype_to_string_function = &object_prototype()->get_without_side_effects(vm.names.toString).as_function();
return {};
}
template<typename T>
constexpr inline bool IsTypedArrayConstructor = false;
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName, ArrayType) \
template<> \
constexpr inline bool IsTypedArrayConstructor<ConstructorName> = true;
JS_ENUMERATE_TYPED_ARRAYS
#undef __JS_ENUMERATE
#define __JS_ENUMERATE_INNER(ClassName, snake_name, PrototypeName, ConstructorName, Namespace, snake_namespace) \
void Intrinsics::initialize_##snake_namespace##snake_name() \
{ \
auto& vm = this->vm(); \
\
VERIFY(!m_##snake_namespace##snake_name##_prototype); \
VERIFY(!m_##snake_namespace##snake_name##_constructor); \
if constexpr (IsTypedArrayConstructor<Namespace::ConstructorName>) { \
m_##snake_namespace##snake_name##_prototype = heap().allocate<Namespace::PrototypeName>(m_realm, *typed_array_prototype()); \
m_##snake_namespace##snake_name##_constructor = heap().allocate<Namespace::ConstructorName>(m_realm, m_realm, *typed_array_constructor()); \
} else { \
m_##snake_namespace##snake_name##_prototype = heap().allocate<Namespace::PrototypeName>(m_realm, m_realm); \
m_##snake_namespace##snake_name##_constructor = heap().allocate<Namespace::ConstructorName>(m_realm, m_realm); \
} \
\
/* FIXME: Add these special cases to JS_ENUMERATE_NATIVE_OBJECTS */ \
if constexpr (IsSame<Namespace::ConstructorName, BigIntConstructor>) \
initialize_constructor(vm, vm.names.BigInt, *m_##snake_namespace##snake_name##_constructor, m_##snake_namespace##snake_name##_prototype); \
else if constexpr (IsSame<Namespace::ConstructorName, BooleanConstructor>) \
initialize_constructor(vm, vm.names.Boolean, *m_##snake_namespace##snake_name##_constructor, m_##snake_namespace##snake_name##_prototype); \
else if constexpr (IsSame<Namespace::ConstructorName, FunctionConstructor>) \
initialize_constructor(vm, vm.names.Function, *m_##snake_namespace##snake_name##_constructor, m_##snake_namespace##snake_name##_prototype); \
else if constexpr (IsSame<Namespace::ConstructorName, NumberConstructor>) \
initialize_constructor(vm, vm.names.Number, *m_##snake_namespace##snake_name##_constructor, m_##snake_namespace##snake_name##_prototype); \
else if constexpr (IsSame<Namespace::ConstructorName, RegExpConstructor>) \
initialize_constructor(vm, vm.names.RegExp, *m_##snake_namespace##snake_name##_constructor, m_##snake_namespace##snake_name##_prototype); \
else if constexpr (IsSame<Namespace::ConstructorName, StringConstructor>) \
initialize_constructor(vm, vm.names.String, *m_##snake_namespace##snake_name##_constructor, m_##snake_namespace##snake_name##_prototype); \
else if constexpr (IsSame<Namespace::ConstructorName, SymbolConstructor>) \
initialize_constructor(vm, vm.names.Symbol, *m_##snake_namespace##snake_name##_constructor, m_##snake_namespace##snake_name##_prototype); \
else \
initialize_constructor(vm, vm.names.ClassName, *m_##snake_namespace##snake_name##_constructor, m_##snake_namespace##snake_name##_prototype); \
} \
\
NonnullGCPtr<Namespace::ConstructorName> Intrinsics::snake_namespace##snake_name##_constructor() \
{ \
if (!m_##snake_namespace##snake_name##_constructor) \
initialize_##snake_namespace##snake_name(); \
return *m_##snake_namespace##snake_name##_constructor; \
} \
\
NonnullGCPtr<Object> Intrinsics::snake_namespace##snake_name##_prototype() \
{ \
if (!m_##snake_namespace##snake_name##_prototype) \
initialize_##snake_namespace##snake_name(); \
return *m_##snake_namespace##snake_name##_prototype; \
}
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName, ArrayType) \
__JS_ENUMERATE_INNER(ClassName, snake_name, PrototypeName, ConstructorName, JS, )
JS_ENUMERATE_BUILTIN_TYPES
#undef __JS_ENUMERATE
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
__JS_ENUMERATE_INNER(ClassName, snake_name, PrototypeName, ConstructorName, JS::Intl, intl_)
JS_ENUMERATE_INTL_OBJECTS
#undef __JS_ENUMERATE
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
__JS_ENUMERATE_INNER(ClassName, snake_name, PrototypeName, ConstructorName, JS::Temporal, temporal_)
JS_ENUMERATE_TEMPORAL_OBJECTS
#undef __JS_ENUMERATE
#undef __JS_ENUMERATE_INNER
#define __JS_ENUMERATE(ClassName, snake_name) \
NonnullGCPtr<ClassName> Intrinsics::snake_name##_object() \
{ \
if (!m_##snake_name##_object) \
m_##snake_name##_object = heap().allocate<ClassName>(m_realm, m_realm); \
return *m_##snake_name##_object; \
}
JS_ENUMERATE_BUILTIN_NAMESPACE_OBJECTS
#undef __JS_ENUMERATE
void Intrinsics::visit_edges(Visitor& visitor)
{
Base::visit_edges(visitor);
visitor.visit(m_realm);
visitor.visit(m_empty_object_shape);
visitor.visit(m_new_object_shape);
visitor.visit(m_new_ordinary_function_prototype_object_shape);
visitor.visit(m_proxy_constructor);
visitor.visit(m_async_from_sync_iterator_prototype);
visitor.visit(m_async_generator_prototype);
visitor.visit(m_generator_prototype);
visitor.visit(m_intl_segments_prototype);
visitor.visit(m_wrap_for_valid_iterator_prototype);
visitor.visit(m_eval_function);
visitor.visit(m_is_finite_function);
visitor.visit(m_is_nan_function);
visitor.visit(m_parse_float_function);
visitor.visit(m_parse_int_function);
visitor.visit(m_decode_uri_function);
visitor.visit(m_decode_uri_component_function);
visitor.visit(m_encode_uri_function);
visitor.visit(m_encode_uri_component_function);
visitor.visit(m_escape_function);
visitor.visit(m_unescape_function);
visitor.visit(m_array_prototype_values_function);
visitor.visit(m_date_constructor_now_function);
visitor.visit(m_eval_function);
visitor.visit(m_json_parse_function);
visitor.visit(m_json_stringify_function);
visitor.visit(m_object_prototype_to_string_function);
visitor.visit(m_throw_type_error_function);
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName, ArrayType) \
visitor.visit(m_##snake_name##_constructor); \
visitor.visit(m_##snake_name##_prototype);
JS_ENUMERATE_BUILTIN_TYPES
#undef __JS_ENUMERATE
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
visitor.visit(m_intl_##snake_name##_constructor); \
visitor.visit(m_intl_##snake_name##_prototype);
JS_ENUMERATE_INTL_OBJECTS
#undef __JS_ENUMERATE
#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
visitor.visit(m_temporal_##snake_name##_constructor); \
visitor.visit(m_temporal_##snake_name##_prototype);
JS_ENUMERATE_TEMPORAL_OBJECTS
#undef __JS_ENUMERATE
#define __JS_ENUMERATE(ClassName, snake_name) \
visitor.visit(m_##snake_name##_object);
JS_ENUMERATE_BUILTIN_NAMESPACE_OBJECTS
#undef __JS_ENUMERATE
#define __JS_ENUMERATE(ClassName, snake_name) \
visitor.visit(m_##snake_name##_prototype);
JS_ENUMERATE_ITERATOR_PROTOTYPES
#undef __JS_ENUMERATE
}
// 10.2.4 AddRestrictedFunctionProperties ( F, realm ), https://tc39.es/ecma262/#sec-addrestrictedfunctionproperties
void add_restricted_function_properties(FunctionObject& function, Realm& realm)
{
auto& vm = realm.vm();
// 1. Assert: realm.[[Intrinsics]].[[%ThrowTypeError%]] exists and has been initialized.
// NOTE: This is ensured by dereferencing the GCPtr in the getter.
// 2. Let thrower be realm.[[Intrinsics]].[[%ThrowTypeError%]].
auto thrower = realm.intrinsics().throw_type_error_function();
// 3. Perform ! DefinePropertyOrThrow(F, "caller", PropertyDescriptor { [[Get]]: thrower, [[Set]]: thrower, [[Enumerable]]: false, [[Configurable]]: true }).
function.define_direct_accessor(vm.names.caller, thrower, thrower, Attribute::Configurable);
// 4. Perform ! DefinePropertyOrThrow(F, "arguments", PropertyDescriptor { [[Get]]: thrower, [[Set]]: thrower, [[Enumerable]]: false, [[Configurable]]: true }).
function.define_direct_accessor(vm.names.arguments, thrower, thrower, Attribute::Configurable);
// 5. Return unused.
}
}
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