ladybird/Userland/Libraries/LibWeb/DOM/AbortSignal.h
Andreas Kling bfd354492e LibWeb: Put most LibWeb GC objects in type-specific heap blocks
With this change, we now have ~1200 CellAllocators across both LibJS and
LibWeb in a normal WebContent instance.

This gives us a minimum heap size of 4.7 MiB in the scenario where we
only have one cell allocated per type. Of course, in practice there will
be many more of each type, so the effective overhead is quite a bit
smaller than that in practice.

I left a few types unconverted to this mechanism because I got tired of
doing this. :^)
2023-11-19 22:00:48 +01:00

61 lines
1.8 KiB
C++

/*
* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/RefCounted.h>
#include <AK/Weakable.h>
#include <LibJS/Heap/HeapFunction.h>
#include <LibWeb/DOM/EventTarget.h>
#include <LibWeb/Forward.h>
namespace Web::DOM {
// https://dom.spec.whatwg.org/#abortsignal
class AbortSignal final : public EventTarget {
WEB_PLATFORM_OBJECT(AbortSignal, EventTarget);
JS_DECLARE_ALLOCATOR(AbortSignal);
public:
static WebIDL::ExceptionOr<JS::NonnullGCPtr<AbortSignal>> construct_impl(JS::Realm&);
virtual ~AbortSignal() override = default;
void add_abort_algorithm(Function<void()>);
// https://dom.spec.whatwg.org/#dom-abortsignal-aborted
// An AbortSignal object is aborted when its abort reason is not undefined.
bool aborted() const { return !m_abort_reason.is_undefined(); }
void signal_abort(JS::Value reason);
void set_onabort(WebIDL::CallbackType*);
WebIDL::CallbackType* onabort();
// https://dom.spec.whatwg.org/#dom-abortsignal-reason
JS::Value reason() const { return m_abort_reason; }
JS::ThrowCompletionOr<void> throw_if_aborted() const;
void follow(JS::NonnullGCPtr<AbortSignal> parent_signal);
private:
explicit AbortSignal(JS::Realm&);
virtual void initialize(JS::Realm&) override;
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.
JS::Value m_abort_reason { JS::js_undefined() };
// https://dom.spec.whatwg.org/#abortsignal-abort-algorithms
// FIXME: This should be a set.
Vector<JS::NonnullGCPtr<JS::HeapFunction<void()>>> m_abort_algorithms;
};
}