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diff --git a/kjs/array_instance.h b/kjs/array_instance.h
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+// -*- c-basic-offset: 2 -*-
+/*
+ *  This file is part of the KDE libraries
+ *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2003 Apple Computer, Inc.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef ARRAY_INSTANCE_H
+#define ARRAY_INSTANCE_H
+
+#include "object.h"
+
+namespace KJS {
+
+  class ArrayInstanceImp : public ObjectImp {
+  public:
+    ArrayInstanceImp(ObjectImp *proto, unsigned initialLength);
+    ArrayInstanceImp(ObjectImp *proto, const List &initialValues);
+    ~ArrayInstanceImp();
+
+    virtual Value get(ExecState *exec, const Identifier &propertyName) const;
+    virtual Value getPropertyByIndex(ExecState *exec, unsigned propertyName) const;
+    virtual void put(ExecState *exec, const Identifier &propertyName, const Value &value, int attr = None);
+    virtual void putPropertyByIndex(ExecState *exec, unsigned propertyName, const Value &value, int attr = None);
+    virtual bool hasProperty(ExecState *exec, const Identifier &propertyName) const;
+    virtual bool hasPropertyByIndex(ExecState *exec, unsigned propertyName) const;
+    virtual bool deleteProperty(ExecState *exec, const Identifier &propertyName);
+    virtual bool deletePropertyByIndex(ExecState *exec, unsigned propertyName);
+    virtual ReferenceList propList(ExecState *exec, bool recursive);
+
+    virtual void mark();
+
+    virtual const ClassInfo *classInfo() const { return &info; }
+    static const ClassInfo info;
+
+    unsigned getLength() const { return length; }
+
+    void sort(ExecState *exec);
+    void sort(ExecState *exec, Object &compareFunction);
+
+  private:
+    void setLength(unsigned newLength, ExecState *exec);
+
+    unsigned pushUndefinedObjectsToEnd(ExecState *exec);
+
+    void resizeStorage(unsigned);
+
+    unsigned length;
+    unsigned storageLength;
+    unsigned capacity;
+    ValueImp **storage;
+  };
+
+} // namespace KJS
+
+#endif