mirror of
https://github.com/LadybirdBrowser/ladybird
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12d9aaebb3
No other engine defines this function, so it is an observable difference of our engine. This traces back to the earliest days of LibJS. We now define `gc` in just the test-js and test262 runners.
122 lines
3.9 KiB
C++
122 lines
3.9 KiB
C++
/*
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* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
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* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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// NOTE: This file is not named $262Object.cpp because dollar signs in file names cause issues with some build tools.
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#include <AK/TypeCasts.h>
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#include <LibJS/Contrib/Test262/262Object.h>
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#include <LibJS/Contrib/Test262/AgentObject.h>
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#include <LibJS/Contrib/Test262/GlobalObject.h>
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#include <LibJS/Contrib/Test262/IsHTMLDDA.h>
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#include <LibJS/Heap/Cell.h>
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#include <LibJS/Runtime/ArrayBuffer.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/Object.h>
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#include <LibJS/Runtime/VM.h>
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#include <LibJS/Script.h>
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namespace JS::Test262 {
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GC_DEFINE_ALLOCATOR($262Object);
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$262Object::$262Object(Realm& realm)
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: Object(Object::ConstructWithoutPrototypeTag::Tag, realm)
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{
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}
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void $262Object::initialize(Realm& realm)
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{
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Base::initialize(realm);
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m_agent = realm.create<AgentObject>(realm);
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m_is_htmldda = realm.create<IsHTMLDDA>(realm);
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u8 attr = Attribute::Writable | Attribute::Configurable;
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define_native_function(realm, "clearKeptObjects"_utf16_fly_string, clear_kept_objects, 0, attr);
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define_native_function(realm, "createRealm"_utf16_fly_string, create_realm, 0, attr);
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define_native_function(realm, "detachArrayBuffer"_utf16_fly_string, detach_array_buffer, 1, attr);
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define_native_function(realm, "evalScript"_utf16_fly_string, eval_script, 1, attr);
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define_native_function(realm, "gc"_utf16_fly_string, collect_garbage, 1, attr);
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define_direct_property("agent"_utf16_fly_string, m_agent, attr);
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define_direct_property("global"_utf16_fly_string, &realm.global_object(), attr);
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define_direct_property("IsHTMLDDA"_utf16_fly_string, m_is_htmldda, attr);
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}
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void $262Object::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_agent);
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visitor.visit(m_is_htmldda);
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}
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JS_DEFINE_NATIVE_FUNCTION($262Object::clear_kept_objects)
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{
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vm.finish_execution_generation();
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return js_undefined();
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}
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JS_DEFINE_NATIVE_FUNCTION($262Object::collect_garbage)
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{
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vm.heap().collect_garbage();
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return JS::js_undefined();
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}
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JS_DEFINE_NATIVE_FUNCTION($262Object::create_realm)
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{
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GC::Ptr<JS::Test262::GlobalObject> global_object;
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auto root_execution_context = MUST(JS::Realm::initialize_host_defined_realm(
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vm,
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[&](JS::Realm& realm) -> JS::GlobalObject* {
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global_object = vm.heap().allocate<JS::Test262::GlobalObject>(realm);
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return global_object;
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},
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nullptr));
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vm.pop_execution_context();
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return Value(global_object->$262());
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}
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JS_DEFINE_NATIVE_FUNCTION($262Object::detach_array_buffer)
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{
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auto array_buffer = vm.argument(0).as_if<ArrayBuffer>();
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if (!array_buffer)
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return vm.throw_completion<TypeError>();
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TRY(JS::detach_array_buffer(vm, *array_buffer, vm.argument(1)));
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return js_null();
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}
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JS_DEFINE_NATIVE_FUNCTION($262Object::eval_script)
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{
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auto source_text = TRY(vm.argument(0).to_string(vm));
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// 1. Let hostDefined be any host-defined values for the provided sourceText (obtained in an implementation dependent manner)
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// 2. Let realm be the current Realm Record.
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auto& realm = *vm.current_realm();
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// 3. Let s be ParseScript(sourceText, realm, hostDefined).
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auto script_or_error = Script::parse(source_text, realm);
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// 4. If s is a List of errors, then
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if (script_or_error.is_error()) {
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// a. Let error be the first element of s.
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auto& error = script_or_error.error()[0];
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// b. Return Completion { [[Type]]: throw, [[Value]]: error, [[Target]]: empty }.
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return vm.throw_completion<SyntaxError>(error.to_string());
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}
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// 5. Let status be ScriptEvaluation(s).
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auto status = vm.run(script_or_error.value());
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// 6. Return Completion(status).
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return status;
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}
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}
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