/*

 * Copyright (C) 2009 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. ``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

 * 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. 

 */

#include "config.h"

#include "RopeImpl.h"

namespace JSC {

void RopeImpl::derefFibersNonRecursive(Vector<RopeImpl*, 32>& workQueue)

{

    unsigned fiberCount = this->fiberCount();

    for (unsigned i = 0; i < fiberCount; ++i) {

        Fiber& fiber = m_fibers[i];

        if (isRope(fiber)) {

            RopeImpl* nextRope = static_cast<RopeImpl*>(fiber);

            if (nextRope->hasOneRef())

                workQueue.append(nextRope);

            else

                nextRope->deref();

        } else

            static_cast<UStringImpl*>(fiber)->deref();

    }

}

void RopeImpl::destructNonRecursive()

{

    Vector<RopeImpl*, 32> workQueue;

    derefFibersNonRecursive(workQueue);

    delete this;

    while (!workQueue.isEmpty()) {

        RopeImpl* rope = workQueue.last();

        workQueue.removeLast();

        rope->derefFibersNonRecursive(workQueue);

        delete rope;

    }

}

} // namespace JSC