| 1 | // -*- mode: c++; c-basic-offset: 4 -*-
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| 2 | /*
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| 3 | * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
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| 4 | *
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| 5 | * This library is free software; you can redistribute it and/or
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| 6 | * modify it under the terms of the GNU Library General Public
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| 7 | * License as published by the Free Software Foundation; either
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| 8 | * version 2 of the License, or (at your option) any later version.
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| 9 | *
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| 10 | * This library is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 13 | * Library General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU Library General Public License
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| 16 | * along with this library; see the file COPYING.LIB. If not, write to
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| 17 | * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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| 18 | * Boston, MA 02110-1301, USA.
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| 19 | *
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| 20 | */
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| 21 |
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| 22 | #ifndef PropertyMap_h
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| 23 | #define PropertyMap_h
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| 24 |
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| 25 | #include "identifier.h"
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| 26 | #include "protect.h"
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| 27 | #include <wtf/OwnArrayPtr.h>
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| 28 |
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| 29 | namespace KJS {
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| 30 |
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| 31 | class JSObject;
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| 32 | class JSValue;
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| 33 | class PropertyNameArray;
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| 34 |
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| 35 | struct PropertyMapEntry;
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| 36 | struct PropertyMapHashTable;
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| 37 |
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| 38 | class PropertyMap : Noncopyable {
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| 39 | public:
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| 40 | PropertyMap();
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| 41 | ~PropertyMap();
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| 42 |
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| 43 | void clear();
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| 44 |
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| 45 | void put(const Identifier&, JSValue*, unsigned attributes, bool checkReadOnly = false);
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| 46 | void remove(const Identifier&);
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| 47 | JSValue* get(const Identifier&) const;
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| 48 | JSValue* get(const Identifier&, unsigned& attributes) const;
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| 49 | JSValue** getLocation(const Identifier& name);
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| 50 | JSValue** getLocation(const Identifier& name, bool& isWriteable);
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| 51 |
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| 52 | void mark() const;
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| 53 | void getEnumerablePropertyNames(PropertyNameArray&) const;
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| 54 |
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| 55 | bool hasGetterSetterProperties() const { return m_getterSetterFlag; }
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| 56 | void setHasGetterSetterProperties(bool f) { m_getterSetterFlag = f; }
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| 57 |
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| 58 | bool containsGettersOrSetters() const;
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| 59 |
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| 60 | private:
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| 61 | typedef PropertyMapEntry Entry;
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| 62 | typedef PropertyMapHashTable Table;
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| 63 |
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| 64 | static bool keysMatch(const UString::Rep*, const UString::Rep*);
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| 65 | void expand();
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| 66 | void rehash();
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| 67 | void rehash(unsigned newTableSize);
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| 68 | void createTable();
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| 69 |
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| 70 | void insert(const Entry&);
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| 71 |
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| 72 | void checkConsistency();
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| 73 |
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| 74 | UString::Rep* m_singleEntryKey;
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| 75 | union {
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| 76 | JSValue* singleEntryValue;
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| 77 | Table* table;
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| 78 | } m_u;
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| 79 |
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| 80 | short m_singleEntryAttributes;
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| 81 | bool m_getterSetterFlag : 1;
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| 82 | bool m_usingTable : 1;
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| 83 | };
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| 84 |
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| 85 | inline PropertyMap::PropertyMap()
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| 86 | : m_singleEntryKey(0)
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| 87 | , m_getterSetterFlag(false)
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| 88 | , m_usingTable(false)
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| 89 |
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| 90 | {
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| 91 | }
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| 92 | } // namespace
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| 93 |
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| 94 | #endif // _KJS_PROPERTY_MAP_H_
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