kjs/array_instance.h

   1 // -*- c-basic-offset: 2 -*-
   2 /*
   3  *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
   4  *  Copyright (C) 2003, 2007 Apple Inc. All rights reserved.
   5  *
   6  *  This library is free software; you can redistribute it and/or
   7  *  modify it under the terms of the GNU Lesser General Public
   8  *  License as published by the Free Software Foundation; either
   9  *  version 2 of the License, or (at your option) any later version.
  10  *
  11  *  This library is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  *  Lesser General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU Lesser General Public
  17  *  License along with this library; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifndef ARRAY_INSTANCE_H
  23 #define ARRAY_INSTANCE_H
  24
  25 #include "object.h"
  26
  27 namespace KJS {
  28
  29   struct ArrayStorage;
  30
  31   class ArrayInstance : public JSObject {
  32   public:
  33     ArrayInstance(JSObject* prototype, unsigned initialLength);
  34     ArrayInstance(JSObject* prototype, const List& initialValues);
  35     ~ArrayInstance();
  36
  37     virtual bool getOwnPropertySlot(ExecState*, const Identifier& propertyName, PropertySlot&);
  38     virtual bool getOwnPropertySlot(ExecState*, unsigned propertyName, PropertySlot&);
  39     virtual void put(ExecState*, const Identifier& propertyName, JSValue*, int attributes = None);
  40     virtual void put(ExecState*, unsigned propertyName, JSValue*, int attributes = None);
  41     virtual bool deleteProperty(ExecState *, const Identifier& propertyName);
  42     virtual bool deleteProperty(ExecState *, unsigned propertyName);
  43     virtual void getPropertyNames(ExecState*, PropertyNameArray&);
  44
  45     virtual void mark();
  46
  47     virtual const ClassInfo* classInfo() const { return &info; }
  48     static const ClassInfo info;
  49
  50     unsigned getLength() const { return m_length; }
  51     JSValue* getItem(unsigned) const;
  52
  53     void sort(ExecState*);
  54     void sort(ExecState*, JSObject* compareFunction);
  55
  56   private:
  57     static JSValue* lengthGetter(ExecState*, JSObject*, const Identifier&, const PropertySlot&);
  58     bool inlineGetOwnPropertySlot(ExecState*, unsigned propertyName, PropertySlot&);
  59
  60     void setLength(unsigned);
  61     void increaseVectorLength(unsigned newLength);
  62
  63     unsigned compactForSorting();
  64
  65     unsigned m_length;
  66     unsigned m_vectorLength;
  67     ArrayStorage* m_storage;
  68   };
  69
  70 } // namespace KJS
  71
  72 #endif