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/*
* Copyright (C) 2017-2021 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
* notice, this list of conditions and the following disclaimer.
* 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. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "MarkingConstraint.h"
#include "MarkingConstraintExecutorPair.h"
#include <wtf/TZoneMalloc.h>
namespace JSC {
// This allows for an informal way to define constraints. Just pass a lambda to the constructor. The only
// downside is that this makes it hard for constraints to override any functions in MarkingConstraint
// other than executeImpl. In those cases, just subclass MarkingConstraint.
class SimpleMarkingConstraint final : public MarkingConstraint {
WTF_MAKE_TZONE_ALLOCATED(SimpleMarkingConstraint);
public:
JS_EXPORT_PRIVATE SimpleMarkingConstraint(
CString abbreviatedName, CString name,
MarkingConstraintExecutorPair&&,
ConstraintVolatility,
ConstraintConcurrency = ConstraintConcurrency::Concurrent,
ConstraintParallelism = ConstraintParallelism::Sequential);
SimpleMarkingConstraint(
CString abbreviatedName, CString name,
MarkingConstraintExecutorPair&& executors,
ConstraintVolatility volatility,
ConstraintParallelism parallelism)
: SimpleMarkingConstraint(abbreviatedName, name, WTFMove(executors), volatility, ConstraintConcurrency::Concurrent, parallelism)
{
}
JS_EXPORT_PRIVATE ~SimpleMarkingConstraint() final;
private:
template<typename Visitor> ALWAYS_INLINE void executeImplImpl(Visitor&);
void executeImpl(AbstractSlotVisitor&) final;
void executeImpl(SlotVisitor&) final;
MarkingConstraintExecutorPair m_executors;
};
} // namespace JSC
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