/*

 * Copyright (C) 2003, 2008 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 COMPUTER, 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 COMPUTER, 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 "runtime_array.h"

#include <runtime/ArrayPrototype.h>

#include <runtime/Error.h>

#include <runtime/PropertyNameArray.h>

#include "JSDOMBinding.h"

using namespace WebCore;

namespace JSC {

const ClassInfo RuntimeArray::s_info = { "RuntimeArray", &JSArray::info, 0, 0 };

RuntimeArray::RuntimeArray(ExecState* exec, Bindings::Array* array)

    // FIXME: deprecatedGetDOMStructure uses the prototype off of the wrong global object

    // We need to pass in the right global object for "array".

    : JSArray(deprecatedGetDOMStructure<RuntimeArray>(exec))

{

    setSubclassData(array);

}

RuntimeArray::~RuntimeArray()

{

    delete getConcreteArray();

}

JSValue RuntimeArray::lengthGetter(ExecState* exec, JSValue slotBase, const Identifier&)

{

    RuntimeArray* thisObj = static_cast<RuntimeArray*>(asObject(slotBase));

    return jsNumber(exec, thisObj->getLength());

}

JSValue RuntimeArray::indexGetter(ExecState* exec, JSValue slotBase, unsigned index)

{

    RuntimeArray* thisObj = static_cast<RuntimeArray*>(asObject(slotBase));

    return thisObj->getConcreteArray()->valueAt(exec, index);

}

void RuntimeArray::getOwnPropertyNames(ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)

{

    unsigned length = getLength();

    for (unsigned i = 0; i < length; ++i)

        propertyNames.add(Identifier::from(exec, i));

    if (mode == IncludeDontEnumProperties)

        propertyNames.add(exec->propertyNames().length);

    JSObject::getOwnPropertyNames(exec, propertyNames, mode);

}

bool RuntimeArray::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot)

{

    if (propertyName == exec->propertyNames().length) {

        slot.setCacheableCustom(this, lengthGetter);

        return true;

    }

    bool ok;

    unsigned index = propertyName.toArrayIndex(&ok);

    if (ok) {

        if (index < getLength()) {

            slot.setCustomIndex(this, index, indexGetter);

            return true;

        }

    }

    return JSObject::getOwnPropertySlot(exec, propertyName, slot);

}

bool RuntimeArray::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)

{

    if (propertyName == exec->propertyNames().length) {

        PropertySlot slot;

        slot.setCustom(this, lengthGetter);

        descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);

        return true;

    }

    bool ok;

    unsigned index = propertyName.toArrayIndex(&ok);

    if (ok) {

        if (index < getLength()) {

            PropertySlot slot;

            slot.setCustomIndex(this, index, indexGetter);

            descriptor.setDescriptor(slot.getValue(exec, propertyName), DontDelete | DontEnum);

            return true;

        }

    }

    return JSObject::getOwnPropertyDescriptor(exec, propertyName, descriptor);

}

bool RuntimeArray::getOwnPropertySlot(ExecState *exec, unsigned index, PropertySlot& slot)

{

    if (index < getLength()) {

        slot.setCustomIndex(this, index, indexGetter);

        return true;

    }

    return JSObject::getOwnPropertySlot(exec, index, slot);

}

void RuntimeArray::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)

{

    if (propertyName == exec->propertyNames().length) {

        throwError(exec, createRangeError(exec, "Range error"));

        return;

    }

    bool ok;

    unsigned index = propertyName.toArrayIndex(&ok);

    if (ok) {

        getConcreteArray()->setValueAt(exec, index, value);

        return;

    }

    JSObject::put(exec, propertyName, value, slot);

}

void RuntimeArray::put(ExecState* exec, unsigned index, JSValue value)

{

    if (index >= getLength()) {

        throwError(exec, createRangeError(exec, "Range error"));

        return;

    }

    getConcreteArray()->setValueAt(exec, index, value);

}

bool RuntimeArray::deleteProperty(ExecState*, const Identifier&)

{

    return false;

}

bool RuntimeArray::deleteProperty(ExecState*, unsigned)

{

    return false;

}

}