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LibWeb+LibJS: Make the EventTarget hierarchy (incl. DOM) GC-allocated

This is a monster patch that turns all EventTargets into GC-allocated
PlatformObjects. Their C++ wrapper classes are removed, and the LibJS
garbage collector is now responsible for their lifetimes.

There's a fair amount of hacks and band-aids in this patch, and we'll
have a lot of cleanup to do after this.
This commit is contained in:
Andreas Kling 2022-08-28 13:42:07 +02:00
parent bb547ce1c4
commit 6f433c8656
445 changed files with 4797 additions and 4268 deletions

View file

@ -32,19 +32,12 @@ struct WorkerOptions {
};
// https://html.spec.whatwg.org/multipage/workers.html#dedicated-workers-and-the-worker-interface
class Worker
: public RefCounted<Worker>
, public Weakable<Worker>
, public DOM::EventTarget
, public Bindings::Wrappable {
class Worker : public DOM::EventTarget {
WEB_PLATFORM_OBJECT(Worker, DOM::EventTarget);
public:
using WrapperType = Bindings::WorkerWrapper;
using RefCounted::ref;
using RefCounted::unref;
static DOM::ExceptionOr<NonnullRefPtr<Worker>> create(FlyString const& script_url, WorkerOptions const options, DOM::Document& document);
static DOM::ExceptionOr<NonnullRefPtr<Worker>> create_with_global_object(Bindings::WindowObject& window, FlyString const& script_url, WorkerOptions const options)
static DOM::ExceptionOr<JS::NonnullGCPtr<Worker>> create(FlyString const& script_url, WorkerOptions const options, DOM::Document& document);
static DOM::ExceptionOr<JS::NonnullGCPtr<Worker>> create_with_global_object(HTML::Window& window, FlyString const& script_url, WorkerOptions const options)
{
return Worker::create(script_url, options, window.impl().associated_document());
}
@ -55,13 +48,8 @@ public:
virtual ~Worker() = default;
// ^EventTarget
virtual void ref_event_target() override { ref(); }
virtual void unref_event_target() override { unref(); }
virtual JS::Object* create_wrapper(JS::Realm&) override;
MessagePort* implicit_message_port() { return m_implicit_port; }
RefPtr<MessagePort> outside_message_port() { return m_outside_port; }
MessagePort* implicit_message_port() { return m_implicit_port.ptr(); }
JS::GCPtr<MessagePort> outside_message_port() { return m_outside_port; }
#undef __ENUMERATE
#define __ENUMERATE(attribute_name, event_name) \
@ -79,29 +67,29 @@ private:
return static_cast<Bindings::WebEngineCustomData*>(target_vm.custom_data())->event_loop;
}
virtual void visit_edges(Cell::Visitor&) override;
FlyString m_script_url;
WorkerOptions m_options;
WeakPtr<DOM::Document> m_document;
JS::GCPtr<DOM::Document> m_document;
Bindings::WebEngineCustomData m_custom_data;
NonnullRefPtr<JS::VM> m_worker_vm;
NonnullOwnPtr<JS::Interpreter> m_interpreter;
WeakPtr<WorkerEnvironmentSettingsObject> m_inner_settings;
JS::VM::InterpreterExecutionScope m_interpreter_scope;
WeakPtr<JS::Realm> m_worker_realm;
JS::GCPtr<JS::Realm> m_worker_realm;
RefPtr<WorkerDebugConsoleClient> m_console;
JS::GlobalObject* m_worker_scope;
JS::GCPtr<JS::Object> m_worker_scope;
NonnullRefPtr<MessagePort> m_implicit_port;
RefPtr<MessagePort> m_outside_port;
JS::NonnullGCPtr<MessagePort> m_implicit_port;
JS::GCPtr<MessagePort> m_outside_port;
void run_a_worker(AK::URL& url, EnvironmentSettingsObject& outside_settings, MessagePort& outside_port, WorkerOptions const options);
};
} // namespace Web::HTML
namespace Web::Bindings {
WorkerWrapper* wrap(JS::Realm&, HTML::Worker&);
}
WRAPPER_HACK(Worker, Web::HTML)