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- /*
- * Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
- * Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
- // NOTE: This file is not named $262Object.cpp because dollar signs in file names cause issues with some build tools.
- #include <AK/TypeCasts.h>
- #include <LibJS/Bytecode/Interpreter.h>
- #include <LibJS/Contrib/Test262/262Object.h>
- #include <LibJS/Contrib/Test262/AgentObject.h>
- #include <LibJS/Contrib/Test262/GlobalObject.h>
- #include <LibJS/Contrib/Test262/IsHTMLDDA.h>
- #include <LibJS/Heap/Cell.h>
- #include <LibJS/Interpreter.h>
- #include <LibJS/Runtime/ArrayBuffer.h>
- #include <LibJS/Runtime/GlobalObject.h>
- #include <LibJS/Runtime/Object.h>
- #include <LibJS/Script.h>
- namespace JS::Test262 {
- $262Object::$262Object(Realm& realm)
- : Object(Object::ConstructWithoutPrototypeTag::Tag, realm)
- {
- }
- void $262Object::initialize(Realm& realm)
- {
- Base::initialize(realm);
- m_agent = MUST(vm().heap().allocate<AgentObject>(realm, realm));
- m_is_htmldda = MUST(vm().heap().allocate<IsHTMLDDA>(realm, realm));
- u8 attr = Attribute::Writable | Attribute::Configurable;
- define_native_function(realm, "clearKeptObjects", clear_kept_objects, 0, attr);
- define_native_function(realm, "createRealm", create_realm, 0, attr);
- define_native_function(realm, "detachArrayBuffer", detach_array_buffer, 1, attr);
- define_native_function(realm, "evalScript", eval_script, 1, attr);
- define_direct_property("agent", m_agent, attr);
- define_direct_property("gc", realm.global_object().get_without_side_effects("gc"), attr);
- define_direct_property("global", &realm.global_object(), attr);
- define_direct_property("IsHTMLDDA", m_is_htmldda, attr);
- }
- void $262Object::visit_edges(Cell::Visitor& visitor)
- {
- Base::visit_edges(visitor);
- visitor.visit(m_agent);
- visitor.visit(m_is_htmldda);
- }
- JS_DEFINE_NATIVE_FUNCTION($262Object::clear_kept_objects)
- {
- vm.finish_execution_generation();
- return js_undefined();
- }
- JS_DEFINE_NATIVE_FUNCTION($262Object::create_realm)
- {
- auto realm = MUST_OR_THROW_OOM(Realm::create(vm));
- auto realm_global_object = vm.heap().allocate_without_realm<GlobalObject>(*realm);
- VERIFY(realm_global_object);
- realm->set_global_object(realm_global_object, nullptr);
- set_default_global_bindings(*realm);
- realm_global_object->initialize(*realm);
- return Value(realm_global_object->$262());
- }
- JS_DEFINE_NATIVE_FUNCTION($262Object::detach_array_buffer)
- {
- auto array_buffer = vm.argument(0);
- if (!array_buffer.is_object() || !is<ArrayBuffer>(array_buffer.as_object()))
- return vm.throw_completion<TypeError>();
- auto& array_buffer_object = static_cast<ArrayBuffer&>(array_buffer.as_object());
- TRY(JS::detach_array_buffer(vm, array_buffer_object, vm.argument(1)));
- return js_null();
- }
- JS_DEFINE_NATIVE_FUNCTION($262Object::eval_script)
- {
- auto source_text = TRY(vm.argument(0).to_deprecated_string(vm));
- // 1. Let hostDefined be any host-defined values for the provided sourceText (obtained in an implementation dependent manner)
- // 2. Let realm be the current Realm Record.
- auto& realm = *vm.current_realm();
- // 3. Let s be ParseScript(sourceText, realm, hostDefined).
- auto script_or_error = Script::parse(source_text, realm);
- // 4. If s is a List of errors, then
- if (script_or_error.is_error()) {
- // a. Let error be the first element of s.
- auto& error = script_or_error.error()[0];
- // b. Return Completion { [[Type]]: throw, [[Value]]: error, [[Target]]: empty }.
- return vm.throw_completion<SyntaxError>(TRY_OR_THROW_OOM(vm, error.to_string()));
- }
- // 5. Let status be ScriptEvaluation(s).
- auto status = [&] {
- if (auto* bytecode_interpreter = vm.bytecode_interpreter_if_exists())
- return bytecode_interpreter->run(script_or_error.value());
- else
- return vm.interpreter().run(script_or_error.value());
- }();
- // 6. Return Completion(status).
- return status;
- }
- }
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