Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibJS/Runtime/FinalizationRegistryConstructor.cpp

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibJS/Runtime/AbstractOperations.h>
+#include <LibJS/Runtime/Error.h>
+#include <LibJS/Runtime/FinalizationRegistry.h>
+#include <LibJS/Runtime/FinalizationRegistryConstructor.h>
+#include <LibJS/Runtime/GlobalObject.h>
+#include <LibJS/Runtime/JobCallback.h>
+
+namespace JS {
+
+JS_DEFINE_ALLOCATOR(FinalizationRegistryConstructor);
+
+FinalizationRegistryConstructor::FinalizationRegistryConstructor(Realm& realm)
+    : NativeFunction(realm.vm().names.FinalizationRegistry.as_string(), realm.intrinsics().function_prototype())
+{
+}
+
+void FinalizationRegistryConstructor::initialize(Realm& realm)
+{
+    auto& vm = this->vm();
+    Base::initialize(realm);
+
+    // 26.2.2.1 FinalizationRegistry.prototype, https://tc39.es/ecma262/#sec-finalization-registry.prototype
+    define_direct_property(vm.names.prototype, realm.intrinsics().finalization_registry_prototype(), 0);
+
+    define_direct_property(vm.names.length, Value(1), Attribute::Configurable);
+}
+
+// 26.2.1.1 FinalizationRegistry ( cleanupCallback ), https://tc39.es/ecma262/#sec-finalization-registry-cleanup-callback
+ThrowCompletionOr<Value> FinalizationRegistryConstructor::call()
+{
+    auto& vm = this->vm();
+
+    // 1. If NewTarget is undefined, throw a TypeError exception.
+    return vm.throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, vm.names.FinalizationRegistry);
+}
+
+// 26.2.1.1 FinalizationRegistry ( cleanupCallback ), https://tc39.es/ecma262/#sec-finalization-registry-cleanup-callback
+ThrowCompletionOr<NonnullGCPtr<Object>> FinalizationRegistryConstructor::construct(FunctionObject& new_target)
+{
+    auto& vm = this->vm();
+
+    // 2. If IsCallable(cleanupCallback) is false, throw a TypeError exception.
+    auto cleanup_callback = vm.argument(0);
+    if (!cleanup_callback.is_function())
+        return vm.throw_completion<TypeError>(ErrorType::NotAFunction, cleanup_callback.to_string_without_side_effects());
+
+    // 3. Let finalizationRegistry be ? OrdinaryCreateFromConstructor(NewTarget, "%FinalizationRegistry.prototype%", « [[Realm]], [[CleanupCallback]], [[Cells]] »).
+    // 4. Let fn be the active function object.
+    // NOTE: This is not necessary, the active function object is `this`.
+    // 5. Set finalizationRegistry.[[Realm]] to fn.[[Realm]].
+    // 6. Set finalizationRegistry.[[CleanupCallback]] to HostMakeJobCallback(cleanupCallback).
+    // 7. Set finalizationRegistry.[[Cells]] to a new empty List.
+    // NOTE: This is done inside FinalizationRegistry instead of here.
+    // 8. Return finalizationRegistry.
+    return TRY(ordinary_create_from_constructor<FinalizationRegistry>(vm, new_target, &Intrinsics::finalization_registry_prototype, *realm(), vm.host_make_job_callback(cleanup_callback.as_function())));
+}
+
+}