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LibJS+LibWeb: Reduce use of GlobalObject as an intermediary

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- Prefer VM::current_realm() over GlobalObject::associated_realm()
- Prefer VM::heap() over GlobalObject::heap()
- Prefer Cell::vm() over Cell::global_object()
- Prefer Wrapper::vm() over Wrapper::global_object()
- Inline Realm::global_object() calls used to access intrinsics as they
  will later perform a direct lookup without going through the global
  object
This commit is contained in:
Linus Groh 2022-08-22 19:00:49 +01:00
parent e3895e6c80
commit b345a0acca
58 changed files with 157 additions and 231 deletions
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39
Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/IDLGenerators.cpp
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@ -891,7 +891,7 @@ static void generate_to_cpp(SourceGenerator& generator, ParameterType& parameter
// The lambda must take the JS::Value to convert as a parameter instead of capturing it in order to support union types being variadic.
dictionary_generator.append(R"~~~(
auto @js_name@@js_suffix@_to_dictionary = [&global_object, &vm](JS::Value @js_name@@js_suffix@) -> JS::ThrowCompletionOr<@dictionary.type@> {
auto @js_name@@js_suffix@_to_dictionary = [&vm](JS::Value @js_name@@js_suffix@) -> JS::ThrowCompletionOr<@dictionary.type@> {
)~~~");
IDL::Parameter dictionary_parameter { .type = *dictionary_type, .name = acceptable_cpp_name, .optional_default_value = {}, .extended_attributes = {} };
@ -913,7 +913,7 @@ static void generate_to_cpp(SourceGenerator& generator, ParameterType& parameter
// The lambda must take the JS::Value to convert as a parameter instead of capturing it in order to support union types being variadic.
StringBuilder to_variant_captures;
to_variant_captures.append("&global_object, &vm, &realm"sv);
to_variant_captures.append("&vm, &realm"sv);
if (dictionary_type)
to_variant_captures.append(String::formatted(", &{}{}_to_dictionary", js_name, js_suffix));
@ -923,7 +923,6 @@ static void generate_to_cpp(SourceGenerator& generator, ParameterType& parameter
union_generator.append(R"~~~(
auto @js_name@@js_suffix@_to_variant = [@to_variant_captures@](JS::Value @js_name@@js_suffix@) -> JS::ThrowCompletionOr<@union_type@> {
// These might be unused.
(void)global_object;
(void)vm;
(void)realm;
)~~~");
@ -1371,7 +1370,7 @@ void IDL::ParameterizedType::generate_sequence_from_iterable(SourceGenerator& ge
)~~~");
} else {
sequence_generator.append(R"~~~(
@sequence.storage_type@ @cpp_name@ { global_object.heap() };
@sequence.storage_type@ @cpp_name@ { vm.heap() };
)~~~");
}
@ -1508,10 +1507,9 @@ static void generate_wrap_statement(SourceGenerator& generator, String const& va
auto cpp_type = IDL::idl_type_name_to_cpp_type(current_union_type, interface);
union_generator.set("current_type", cpp_type.name);
union_generator.append(R"~~~(
[&vm, &global_object, &realm](@current_type@ const& visited_union_value@recursion_depth@) -> JS::Value {
[&vm, &realm](@current_type@ const& visited_union_value@recursion_depth@) -> JS::Value {
// These may be unused.
(void)vm;
(void)global_object;
(void) realm;
)~~~");
@ -1574,7 +1572,7 @@ static void generate_wrap_statement(SourceGenerator& generator, String const& va
auto dictionary_generator = scoped_generator.fork();
dictionary_generator.append(R"~~~(
auto* dictionary_object@recursion_depth@ = JS::Object::create(realm, global_object.object_prototype());
auto* dictionary_object@recursion_depth@ = JS::Object::create(realm, realm.global_object().object_prototype());
)~~~");
auto* current_dictionary = &interface.dictionaries.find(type.name)->value;
@ -2166,9 +2164,8 @@ JS::ThrowCompletionOr<Optional<JS::PropertyDescriptor>> @class_name@::legacy_pla
)~~~");
get_own_property_generator.append(R"~~~(
[[maybe_unused]] auto& global_object = this->global_object();
[[maybe_unused]] auto& vm = this->vm();
[[maybe_unused]] auto& realm = *global_object.associated_realm();
auto& vm = this->vm();
[[maybe_unused]] auto& realm = *vm.current_realm();
)~~~");
// 1. If O supports indexed properties...
@ -2436,9 +2433,8 @@ JS::ThrowCompletionOr<Optional<JS::PropertyDescriptor>> @class_name@::internal_g
scoped_generator.append(R"~~~(
JS::ThrowCompletionOr<bool> @class_name@::internal_set(JS::PropertyKey const& property_name, JS::Value value, JS::Value receiver)
{
[[maybe_unused]] auto& global_object = this->global_object();
[[maybe_unused]] auto& vm = this->vm();
[[maybe_unused]] auto& realm = *global_object.associated_realm();
auto& vm = this->vm();
[[maybe_unused]] auto& realm = *vm.current_realm();
)~~~");
// The step 1 if statement will be empty if the interface has no setters, so don't generate the if statement if there's no setters.
@ -2496,9 +2492,8 @@ JS::ThrowCompletionOr<bool> @class_name@::internal_set(JS::PropertyKey const& pr
scoped_generator.append(R"~~~(
JS::ThrowCompletionOr<bool> @class_name@::internal_define_own_property(JS::PropertyKey const& property_name, JS::PropertyDescriptor const& property_descriptor)
{
[[maybe_unused]] auto& vm = this->vm();
[[maybe_unused]] auto& global_object = this->global_object();
[[maybe_unused]] auto& realm = *global_object.associated_realm();
auto& vm = this->vm();
[[maybe_unused]] auto& realm = *vm.current_realm();
)~~~");
// 1. If O supports indexed properties...
@ -2617,9 +2612,8 @@ JS::ThrowCompletionOr<bool> @class_name@::internal_define_own_property(JS::Prope
scoped_generator.append(R"~~~(
JS::ThrowCompletionOr<bool> @class_name@::internal_delete(JS::PropertyKey const& property_name)
{
[[maybe_unused]] auto& global_object = this->global_object();
[[maybe_unused]] auto& vm = this->vm();
[[maybe_unused]] auto& realm = *global_object.associated_realm();
auto& vm = this->vm();
[[maybe_unused]] auto& realm = *vm.current_realm();
)~~~");
// 1. If O supports indexed properties...
@ -2969,11 +2963,10 @@ JS::ThrowCompletionOr<JS::Object*> @constructor_class@::construct(FunctionObject
generator.set("constructor.length", String::number(constructor.length()));
generator.append(R"~~~(
[[maybe_unused]] auto& vm = this->vm();
[[maybe_unused]] auto& global_object = this->global_object();
[[maybe_unused]] auto& realm = *global_object.associated_realm();
auto& vm = this->vm();
[[maybe_unused]] auto& realm = *vm.current_realm();
auto& window = static_cast<WindowObject&>(global_object);
auto& window = static_cast<WindowObject&>(realm.global_object());
)~~~");
if (!constructor.parameters.is_empty()) {