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