1/*
2 * Copyright (C) 2017 Apple Inc. All rights reserved.
3 * Copyright (C) 2017 Yusuke Suzuki <utatane.tea@gmail.com>
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#pragma once
28
29#include <JavaScriptCore/JSPromise.h>
30#include <JavaScriptCore/WeakGCMap.h>
31#include <wtf/Forward.h>
32#include <wtf/Noncopyable.h>
33#include <wtf/Vector.h>
34
35namespace JSC {
36class VM;
37}
38
39namespace WebCore {
40
41class DOMPromise;
42class JSDOMGlobalObject;
43class ScriptExecutionContext;
44class UnhandledPromise;
45
46class RejectedPromiseTracker {
47 WTF_MAKE_FAST_ALLOCATED;
48 WTF_MAKE_NONCOPYABLE(RejectedPromiseTracker);
49public:
50 explicit RejectedPromiseTracker(ScriptExecutionContext&, JSC::VM&);
51 ~RejectedPromiseTracker();
52
53 void promiseRejected(JSC::ExecState&, JSDOMGlobalObject&, JSC::JSPromise&);
54 void promiseHandled(JSC::ExecState&, JSDOMGlobalObject&, JSC::JSPromise&);
55
56 void processQueueSoon();
57
58private:
59 void reportUnhandledRejections(Vector<UnhandledPromise>&&);
60 void reportRejectionHandled(Ref<DOMPromise>&&);
61
62 ScriptExecutionContext& m_context;
63 Vector<UnhandledPromise> m_aboutToBeNotifiedRejectedPromises;
64 JSC::WeakGCMap<JSC::JSPromise*, JSC::JSPromise> m_outstandingRejectedPromises;
65};
66
67} // namespace WebCore
68