1/*
2 *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
3 *  Copyright (C) 2008 Apple Inc. All rights reserved.
4 *
5 *  This library is free software; you can redistribute it and/or
6 *  modify it under the terms of the GNU Lesser General Public
7 *  License as published by the Free Software Foundation; either
8 *  version 2 of the License, or (at your option) any later version.
9 *
10 *  This library is distributed in the hope that it will be useful,
11 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 *  Lesser General Public License for more details.
14 *
15 *  You should have received a copy of the GNU Lesser General Public
16 *  License along with this library; if not, write to the Free Software
17 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
18 *
19 */
20
21#ifndef ObjectConstructor_h
22#define ObjectConstructor_h
23
24#include "InternalFunction.h"
25#include "JSGlobalObject.h"
26#include "ObjectPrototype.h"
27
28namespace JSC {
29
30    class ObjectPrototype;
31
32    class ObjectConstructor : public InternalFunction {
33    public:
34        typedef InternalFunction Base;
35
36        static ObjectConstructor* create(ExecState* exec, JSGlobalObject* globalObject, Structure* structure, ObjectPrototype* objectPrototype)
37        {
38            ObjectConstructor* constructor = new (NotNull, allocateCell<ObjectConstructor>(*exec->heap())) ObjectConstructor(globalObject, structure);
39            constructor->finishCreation(exec, objectPrototype);
40            return constructor;
41        }
42
43        static bool getOwnPropertySlot(JSCell*, ExecState*, PropertyName, PropertySlot&);
44        static bool getOwnPropertyDescriptor(JSObject*, ExecState*, PropertyName, PropertyDescriptor&);
45
46        static const ClassInfo s_info;
47
48        static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
49        {
50            return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), &s_info);
51        }
52
53    protected:
54        void finishCreation(ExecState*, ObjectPrototype*);
55        static const unsigned StructureFlags = OverridesGetOwnPropertySlot | InternalFunction::StructureFlags;
56
57    private:
58        ObjectConstructor(JSGlobalObject*, Structure*);
59        static ConstructType getConstructData(JSCell*, ConstructData&);
60        static CallType getCallData(JSCell*, CallData&);
61    };
62
63    inline JSObject* constructEmptyObject(ExecState* exec, Structure* structure)
64    {
65        return JSFinalObject::create(exec, structure);
66    }
67
68    inline JSObject* constructEmptyObject(ExecState* exec, JSObject* prototype, unsigned inlineCapacity)
69    {
70        JSGlobalObject* globalObject = exec->lexicalGlobalObject();
71        PrototypeMap& prototypeMap = globalObject->vm().prototypeMap;
72        Structure* structure = prototypeMap.emptyObjectStructureForPrototype(
73            prototype, inlineCapacity);
74        return constructEmptyObject(exec, structure);
75    }
76
77    inline JSObject* constructEmptyObject(ExecState* exec, JSObject* prototype)
78    {
79        return constructEmptyObject(exec, prototype, JSFinalObject::defaultInlineCapacity());
80    }
81
82    inline JSObject* constructEmptyObject(ExecState* exec)
83    {
84        return constructEmptyObject(exec, exec->lexicalGlobalObject()->objectPrototype());
85    }
86
87} // namespace JSC
88
89#endif // ObjectConstructor_h
90