1/*
2 * Copyright (C) 2009 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef JSZombie_h
27#define JSZombie_h
28
29#include "JSCell.h"
30#include "Structure.h"
31
32#if ENABLE(JSC_ZOMBIES)
33namespace JSC {
34
35class JSZombie : public JSCell {
36public:
37    JSZombie(JSGlobalData& globalData, const ClassInfo* oldInfo, Structure* structure)
38        : JSCell(globalData, structure)
39        , m_oldInfo(oldInfo)
40    {
41        ASSERT(inherits(&s_info));
42    }
43
44    virtual bool isZombie() const { return true; }
45
46    virtual bool isGetterSetter() const { ASSERT_NOT_REACHED(); return false; }
47    virtual bool isAPIValueWrapper() const { ASSERT_NOT_REACHED(); return false; }
48    virtual bool isPropertyNameIterator() const { ASSERT_NOT_REACHED(); return false; }
49    virtual CallType getCallData(CallData&) { ASSERT_NOT_REACHED(); return CallTypeNone; }
50    virtual ConstructType getConstructData(ConstructData&) { ASSERT_NOT_REACHED(); return ConstructTypeNone; }
51    virtual bool getUInt32(uint32_t&) const { ASSERT_NOT_REACHED(); return false; }
52    virtual JSValue toPrimitive(ExecState*, PreferredPrimitiveType) const { ASSERT_NOT_REACHED(); return jsNull(); }
53    virtual bool getPrimitiveNumber(ExecState*, double&, JSValue&) { ASSERT_NOT_REACHED(); return false; }
54    virtual bool toBoolean(ExecState*) const { ASSERT_NOT_REACHED(); return false; }
55    virtual double toNumber(ExecState*) const { ASSERT_NOT_REACHED(); return 0.0; }
56    virtual UString toString(ExecState*) const { ASSERT_NOT_REACHED(); return ""; }
57    virtual JSObject* toObject(ExecState*) const { ASSERT_NOT_REACHED(); return 0; }
58    virtual void markChildren(MarkStack&) { ASSERT_NOT_REACHED(); }
59    virtual void put(ExecState*, const Identifier&, JSValue, PutPropertySlot&) { ASSERT_NOT_REACHED(); }
60    virtual void put(ExecState*, unsigned, JSValue) { ASSERT_NOT_REACHED(); }
61    virtual bool deleteProperty(ExecState*, const Identifier&) { ASSERT_NOT_REACHED(); return false; }
62    virtual bool deleteProperty(ExecState*, unsigned) { ASSERT_NOT_REACHED(); return false; }
63    virtual JSObject* toThisObject(ExecState*) const { ASSERT_NOT_REACHED(); return 0; }
64    virtual JSValue toStrictThisObject(ExecState*) const { ASSERT_NOT_REACHED(); return JSValue(); }
65    virtual JSValue getJSNumber() { ASSERT_NOT_REACHED(); return jsNull(); }
66    virtual bool getOwnPropertySlot(ExecState*, const Identifier&, PropertySlot&) { ASSERT_NOT_REACHED(); return false; }
67    virtual bool getOwnPropertySlot(ExecState*, unsigned, PropertySlot&) { ASSERT_NOT_REACHED(); return false; }
68
69    static Structure* createStructure(JSGlobalData& globalData, JSValue prototype)
70    {
71        return Structure::create(globalData, prototype, TypeInfo(LeafType, 0), AnonymousSlotCount, &s_info);
72    }
73
74    static const ClassInfo s_info;
75
76private:
77    const ClassInfo* m_oldInfo;
78};
79
80}
81
82#endif // ENABLE(JSC_ZOMBIES)
83
84#endif // JSZombie_h
85