1 /*

     2  *  Copyright (C) 1999-2001 Harri Porten (porten@kde.org)

     3  *  Copyright (C) 2004, 2005, 2006, 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 #include "config.h"

    22 #include "StringObject.h"

    23 

    24 #include "PropertyNameArray.h"

    25 

    26 namespace JSC {

    27 

    28 ASSERT_CLASS_FITS_IN_CELL(StringObject);

    29 

    30 const ClassInfo StringObject::info = { "String", 0, 0, 0 };

    31 

    32 StringObject::StringObject(ExecState* exec, NonNullPassRefPtr<Structure> structure)

    33     : JSWrapperObject(structure)

    34 {

    35     setInternalValue(jsEmptyString(exec));

    36 }

    37 

    38 StringObject::StringObject(NonNullPassRefPtr<Structure> structure, JSString* string)

    39     : JSWrapperObject(structure)

    40 {

    41     setInternalValue(string);

    42 }

    43 

    44 StringObject::StringObject(ExecState* exec, NonNullPassRefPtr<Structure> structure, const UString& string)

    45     : JSWrapperObject(structure)

    46 {

    47     setInternalValue(jsString(exec, string));

    48 }

    49 

    50 bool StringObject::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot)

    51 {

    52     if (internalValue()->getStringPropertySlot(exec, propertyName, slot))

    53         return true;

    54     return JSObject::getOwnPropertySlot(exec, propertyName, slot);

    55 }

    56     

    57 bool StringObject::getOwnPropertySlot(ExecState* exec, unsigned propertyName, PropertySlot& slot)

    58 {

    59     if (internalValue()->getStringPropertySlot(exec, propertyName, slot))

    60         return true;    

    61     return JSObject::getOwnPropertySlot(exec, Identifier::from(exec, propertyName), slot);

    62 }

    63 

    64 bool StringObject::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)

    65 {

    66     if (internalValue()->getStringPropertyDescriptor(exec, propertyName, descriptor))

    67         return true;    

    68     return JSObject::getOwnPropertyDescriptor(exec, propertyName, descriptor);

    69 }

    70 

    71 void StringObject::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)

    72 {

    73     if (propertyName == exec->propertyNames().length)

    74         return;

    75     JSObject::put(exec, propertyName, value, slot);

    76 }

    77 

    78 bool StringObject::deleteProperty(ExecState* exec, const Identifier& propertyName)

    79 {

    80     if (propertyName == exec->propertyNames().length)

    81         return false;

    82     bool isStrictUInt32;

    83     unsigned i = propertyName.toStrictUInt32(&isStrictUInt32);

    84     if (isStrictUInt32 && internalValue()->canGetIndex(i))

    85         return false;

    86     return JSObject::deleteProperty(exec, propertyName);

    87 }

    88 

    89 void StringObject::getOwnPropertyNames(ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)

    90 {

    91     int size = internalValue()->length();

    92     for (int i = 0; i < size; ++i)

    93         propertyNames.add(Identifier(exec, UString::from(i)));

    94     if (mode == IncludeDontEnumProperties)

    95         propertyNames.add(exec->propertyNames().length);

    96     return JSObject::getOwnPropertyNames(exec, propertyNames, mode);

    97 }

    98 

    99 } // namespace JSC