Source/WebCore/dom/PromiseRejectionEvent.h

/*
* Copyright (C) 2017 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
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* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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#pragma once

#include "Event.h"
#include <JavaScriptCore/Strong.h>

namespace WebCore {

class DOMPromise;

class PromiseRejectionEvent final : public Event {
public:
    struct Init : EventInit {
        RefPtr<DOMPromise> promise;
        JSC::JSValue reason;
    };

    static Ref<PromiseRejectionEvent> create(JSC::ExecState& state, const AtomicString& type, const Init& initializer, IsTrusted isTrusted = IsTrusted::No)
    {
        return adoptRef(*new PromiseRejectionEvent(state, type, initializer, isTrusted));
    }

    virtual ~PromiseRejectionEvent();

    DOMPromise& promise() const { return m_promise.get(); }
    JSC::JSValue reason() const { return m_reason.get(); }

    EventInterface eventInterface() const override { return PromiseRejectionEventInterfaceType; }

private:
    PromiseRejectionEvent(JSC::ExecState&, const AtomicString&, const Init&, IsTrusted);

    Ref<DOMPromise> m_promise;
    // FIXME: The following use of JSC::Strong is incorrect and can lead to storage leaks
    // due to reference cycles; we should use JSValueInWrappedObject instead.
    JSC::Strong<JSC::Unknown> m_reason;
};

} // namespace WebCore