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 "MarkingConstraint.h"
29#include <wtf/Function.h>
30
31namespace JSC {
32
33// This allows for an informal way to define constraints. Just pass a lambda to the constructor. The only
34// downside is that this makes it hard for constraints to override any functions in MarkingConstraint
35// other than executeImpl. In those cases, just subclass MarkingConstraint.
36class SimpleMarkingConstraint : public MarkingConstraint {
37public:
38 JS_EXPORT_PRIVATE SimpleMarkingConstraint(
39 CString abbreviatedName, CString name,
40 ::Function<void(SlotVisitor&)>,
41 ConstraintVolatility,
42 ConstraintConcurrency = ConstraintConcurrency::Concurrent,
43 ConstraintParallelism = ConstraintParallelism::Sequential);
44
45 SimpleMarkingConstraint(
46 CString abbreviatedName, CString name,
47 ::Function<void(SlotVisitor&)> func,
48 ConstraintVolatility volatility,
49 ConstraintParallelism parallelism)
50 : SimpleMarkingConstraint(abbreviatedName, name, WTFMove(func), volatility, ConstraintConcurrency::Concurrent, parallelism)
51 {
52 }
53
54 JS_EXPORT_PRIVATE ~SimpleMarkingConstraint();
55
56private:
57 void executeImpl(SlotVisitor&) override;
58
59 ::Function<void(SlotVisitor&)> m_executeFunction;
60};
61
62} // namespace JSC
63
64