/*
 * 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
 *    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
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 * 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 <wtf/Function.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 be stateful, which is necessary for them to be
// parallel. In those cases, it's easier to just subclass MarkingConstraint.
class SimpleMarkingConstraint : public MarkingConstraint {
public:
    JS_EXPORT_PRIVATE SimpleMarkingConstraint(
        CString abbreviatedName, CString name,
        ::Function<void(SlotVisitor&)>,
        ConstraintVolatility,
        ConstraintConcurrency = ConstraintConcurrency::Concurrent);
    
    JS_EXPORT_PRIVATE ~SimpleMarkingConstraint();
    
private:
    ConstraintParallelism executeImpl(SlotVisitor&) override;

    ::Function<void(SlotVisitor&)> m_executeFunction;
};

} // namespace JSC