1/*
2 * Copyright (C) 2017 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "InspectorProtocolObjects.h"
29#include <wtf/Forward.h>
30#include <wtf/RefCounted.h>
31
32namespace Inspector {
33
34class ScriptCallStack;
35
36class JS_EXPORT_PRIVATE AsyncStackTrace : public RefCounted<AsyncStackTrace> {
37public:
38 enum class State : uint8_t {
39 Pending,
40 Active,
41 Dispatched,
42 Canceled,
43 };
44
45 static Ref<AsyncStackTrace> create(Ref<ScriptCallStack>&&, bool singleShot, RefPtr<AsyncStackTrace> parent);
46
47 bool isPending() const;
48 bool isLocked() const;
49
50 void willDispatchAsyncCall(size_t maxDepth);
51 void didDispatchAsyncCall();
52 void didCancelAsyncCall();
53
54 RefPtr<Protocol::Console::StackTrace> buildInspectorObject() const;
55
56 ~AsyncStackTrace();
57
58private:
59 AsyncStackTrace(Ref<ScriptCallStack>&&, bool, RefPtr<AsyncStackTrace>);
60
61 void truncate(size_t maxDepth);
62 void remove();
63
64 Ref<ScriptCallStack> m_callStack;
65 RefPtr<AsyncStackTrace> m_parent;
66 unsigned m_childCount { 0 };
67 State m_state { State::Pending };
68 bool m_truncated { false };
69 bool m_singleShot { true };
70};
71
72} // namespace Inspector
73