ladybird/Libraries/LibWeb/HTML/PromiseRejectionEvent.h
Shannon Booth 6ac018bcb6 LibWeb: Fix crash accessing 'empty' PromiseRejectionEvent reason
The 'reason' was getting initialized to 'empty' state when not
provided through the constructor, which results in a crash when
accessed through throw_dom_exception_if_needed in the generated
IDL getter.
2024-12-03 00:18:11 +01:00

47 lines
1.5 KiB
C++

/*
* Copyright (c) 2021, Linus Groh <linusg@serenityos.org>
* Copyright (c) 2022, Andreas Kling <andreas@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/FlyString.h>
#include <LibGC/Root.h>
#include <LibJS/Runtime/Promise.h>
#include <LibJS/Runtime/Value.h>
#include <LibWeb/DOM/Event.h>
namespace Web::HTML {
struct PromiseRejectionEventInit : public DOM::EventInit {
GC::Root<JS::Object> promise;
JS::Value reason { JS::js_undefined() };
};
class PromiseRejectionEvent final : public DOM::Event {
WEB_PLATFORM_OBJECT(PromiseRejectionEvent, DOM::Event);
GC_DECLARE_ALLOCATOR(PromiseRejectionEvent);
public:
[[nodiscard]] static GC::Ref<PromiseRejectionEvent> create(JS::Realm&, FlyString const& event_name, PromiseRejectionEventInit const& = {});
static WebIDL::ExceptionOr<GC::Ref<PromiseRejectionEvent>> construct_impl(JS::Realm&, FlyString const& event_name, PromiseRejectionEventInit const&);
virtual ~PromiseRejectionEvent() override;
// Needs to return a pointer for the generated JS bindings to work.
JS::Object const* promise() const { return m_promise; }
JS::Value reason() const { return m_reason; }
private:
PromiseRejectionEvent(JS::Realm&, FlyString const& event_name, PromiseRejectionEventInit const& event_init);
virtual void initialize(JS::Realm&) override;
virtual void visit_edges(Cell::Visitor&) override;
GC::Ref<JS::Object> m_promise;
JS::Value m_reason;
};
}