mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 20:02:44 +00:00
50428ea8d2
Intrinsics, i.e. mostly constructor and prototype objects, but also things like empty and new object shape now live on a new heap-allocated JS::Intrinsics object, thus completing the long journey of taking all the magic away from the global object. This represents the Realm's [[Intrinsics]] slot in the spec and matches its existing [[GlobalObject]] / [[GlobalEnv]] slots in terms of architecture. In the majority of cases it should now be possibly to fully allocate a regular object without the global object existing, and in fact that's what we do now - the realm is allocated before the global object, and the intrinsics between both :^)
62 lines
2.7 KiB
C++
62 lines
2.7 KiB
C++
/*
|
|
* 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 {
|
|
|
|
FinalizationRegistryConstructor::FinalizationRegistryConstructor(Realm& realm)
|
|
: NativeFunction(vm().names.FinalizationRegistry.as_string(), *realm.intrinsics().function_prototype())
|
|
{
|
|
}
|
|
|
|
void FinalizationRegistryConstructor::initialize(Realm& realm)
|
|
{
|
|
auto& vm = this->vm();
|
|
NativeFunction::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();
|
|
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<Object*> FinalizationRegistryConstructor::construct(FunctionObject& new_target)
|
|
{
|
|
auto& vm = this->vm();
|
|
|
|
// NOTE: Step 1 is implemented in FinalizationRegistryConstructor::call()
|
|
|
|
// 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())));
|
|
}
|
|
|
|
}
|