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

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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
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36
Userland/Libraries/LibWeb/DOM/AbortSignal.h
View file

@ -16,26 +16,11 @@
namespace Web::DOM {
// https://dom.spec.whatwg.org/#abortsignal
class AbortSignal final
: public RefCounted<AbortSignal>
, public Weakable<AbortSignal>
, public EventTarget
, public Bindings::Wrappable {
class AbortSignal final : public EventTarget {
WEB_PLATFORM_OBJECT(AbortSignal, EventTarget);
public:
using WrapperType = Bindings::AbortSignalWrapper;
using RefCounted::ref;
using RefCounted::unref;
static NonnullRefPtr<AbortSignal> create()
{
return adopt_ref(*new AbortSignal());
}
static NonnullRefPtr<AbortSignal> create_with_global_object(Bindings::WindowObject&)
{
return AbortSignal::create();
}
static JS::NonnullGCPtr<AbortSignal> create_with_global_object(HTML::Window&);
virtual ~AbortSignal() override = default;
@ -55,15 +40,10 @@ public:
JS::ThrowCompletionOr<void> throw_if_aborted() const;
void visit_edges(JS::Cell::Visitor&);
// ^EventTarget
virtual void ref_event_target() override { ref(); }
virtual void unref_event_target() override { unref(); }
virtual JS::Object* create_wrapper(JS::Realm&) override;
private:
AbortSignal();
explicit AbortSignal(HTML::Window&);
virtual void visit_edges(JS::Cell::Visitor&) override;
// https://dom.spec.whatwg.org/#abortsignal-abort-reason
// An AbortSignal object has an associated abort reason, which is a JavaScript value. It is undefined unless specified otherwise.
@ -75,3 +55,5 @@ private:
};
}
WRAPPER_HACK(AbortSignal, Web::DOM)