1/*
2 *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
3 *  Copyright (C) 2007, 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 StringObject_h
22#define StringObject_h
23
24#include "JSWrapperObject.h"
25#include "JSString.h"
26
27namespace JSC {
28
29    class StringObject : public JSWrapperObject {
30    public:
31        typedef JSWrapperObject Base;
32
33        static StringObject* create(VM& vm, Structure* structure)
34        {
35            JSString* string = jsEmptyString(&vm);
36            StringObject* object = new (NotNull, allocateCell<StringObject>(vm.heap)) StringObject(vm, structure);
37            object->finishCreation(vm, string);
38            return object;
39        }
40        static StringObject* create(VM& vm, Structure* structure, JSString* string)
41        {
42            StringObject* object = new (NotNull, allocateCell<StringObject>(vm.heap)) StringObject(vm, structure);
43            object->finishCreation(vm, string);
44            return object;
45        }
46        static StringObject* create(VM&, JSGlobalObject*, JSString*);
47
48        static bool getOwnPropertySlot(JSObject*, ExecState*, PropertyName, PropertySlot&);
49        static bool getOwnPropertySlotByIndex(JSObject*, ExecState*, unsigned propertyName, PropertySlot&);
50
51        static void put(JSCell*, ExecState*, PropertyName, JSValue, PutPropertySlot&);
52        static void putByIndex(JSCell*, ExecState*, unsigned propertyName, JSValue, bool shouldThrow);
53
54        static bool deleteProperty(JSCell*, ExecState*, PropertyName);
55        static bool deletePropertyByIndex(JSCell*, ExecState*, unsigned propertyName);
56        static void getOwnPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode);
57        static bool defineOwnProperty(JSObject*, ExecState*, PropertyName, const PropertyDescriptor&, bool shouldThrow);
58
59        DECLARE_EXPORT_INFO;
60
61        JSString* internalValue() const { return asString(JSWrapperObject::internalValue());}
62
63        static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
64        {
65            return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
66        }
67
68    protected:
69        JS_EXPORT_PRIVATE void finishCreation(VM&, JSString*);
70        static const unsigned StructureFlags = OverridesGetOwnPropertySlot | InterceptsGetOwnPropertySlotByIndexEvenWhenLengthIsNotZero | OverridesGetPropertyNames | JSWrapperObject::StructureFlags;
71        JS_EXPORT_PRIVATE StringObject(VM&, Structure*);
72    };
73
74    StringObject* asStringObject(JSValue);
75
76    inline StringObject* asStringObject(JSValue value)
77    {
78        ASSERT(asObject(value)->inherits(StringObject::info()));
79        return static_cast<StringObject*>(asObject(value));
80    }
81
82    JS_EXPORT_PRIVATE StringObject* constructString(VM&, JSGlobalObject*, JSValue);
83
84} // namespace JSC
85
86#endif // StringObject_h
87