1 /*

     2  * Copyright (C) 2008, 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  *

     8  * 1.  Redistributions of source code must retain the above copyright

     9  *     notice, this list of conditions and the following disclaimer.

    10  * 2.  Redistributions in binary form must reproduce the above copyright

    11  *     notice, this list of conditions and the following disclaimer in the

    12  *     documentation and/or other materials provided with the distribution.

    13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

    14  *     its contributors may be used to endorse or promote products derived

    15  *     from this software without specific prior written permission.

    16  *

    17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

    18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

    19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

    20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

    21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

    22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

    23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

    24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

    26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    27  */

    28 

    29 

    30 #include "config.h"

    31 #include "JSNotAnObject.h"

    32 

    33 #include <wtf/UnusedParam.h>

    34 

    35 namespace JSC {

    36 

    37 ASSERT_CLASS_FITS_IN_CELL(JSNotAnObject);

    38 

    39 // JSValue methods

    40 JSValue JSNotAnObject::toPrimitive(ExecState* exec, PreferredPrimitiveType) const

    41 {

    42     ASSERT_UNUSED(exec, exec->hadException() && exec->exception() == m_exception);

    43     return m_exception;

    44 }

    45 

    46 bool JSNotAnObject::getPrimitiveNumber(ExecState* exec, double&, JSValue&)

    47 {

    48     ASSERT_UNUSED(exec, exec->hadException() && exec->exception() == m_exception);

    49     return false;

    50 }

    51 

    52 bool JSNotAnObject::toBoolean(ExecState* exec) const

    53 {

    54     ASSERT_UNUSED(exec, exec->hadException() && exec->exception() == m_exception);

    55     return false;

    56 }

    57 

    58 double JSNotAnObject::toNumber(ExecState* exec) const

    59 {

    60     ASSERT_UNUSED(exec, exec->hadException() && exec->exception() == m_exception);

    61     return NaN;

    62 }

    63 

    64 UString JSNotAnObject::toString(ExecState* exec) const

    65 {

    66     ASSERT_UNUSED(exec, exec->hadException() && exec->exception() == m_exception);

    67     return "";

    68 }

    69 

    70 JSObject* JSNotAnObject::toObject(ExecState* exec) const

    71 {

    72     ASSERT_UNUSED(exec, exec->hadException() && exec->exception() == m_exception);

    73     return m_exception;

    74 }

    75 

    76 // Marking

    77 void JSNotAnObject::markChildren(MarkStack& markStack)

    78 {

    79     JSObject::markChildren(markStack);

    80     markStack.append(m_exception);

    81 }

    82 

    83 // JSObject methods

    84 bool JSNotAnObject::getOwnPropertySlot(ExecState* exec, const Identifier&, PropertySlot&)

    85 {

    86     ASSERT_UNUSED(exec, exec->hadException() && exec->exception() == m_exception);

    87     return false;

    88 }

    89 

    90 bool JSNotAnObject::getOwnPropertySlot(ExecState* exec, unsigned, PropertySlot&)

    91 {

    92     ASSERT_UNUSED(exec, exec->hadException() && exec->exception() == m_exception);

    93     return false;

    94 }

    95 

    96 bool JSNotAnObject::getOwnPropertyDescriptor(ExecState* exec, const Identifier&, PropertyDescriptor&)

    97 {

    98     ASSERT_UNUSED(exec, exec->hadException() && exec->exception() == m_exception);

    99     return false;

   100 }

   101 

   102 void JSNotAnObject::put(ExecState* exec, const Identifier& , JSValue, PutPropertySlot&)

   103 {

   104     ASSERT_UNUSED(exec, exec->hadException() && exec->exception() == m_exception);

   105 }

   106 

   107 void JSNotAnObject::put(ExecState* exec, unsigned, JSValue)

   108 {

   109     ASSERT_UNUSED(exec, exec->hadException() && exec->exception() == m_exception);

   110 }

   111 

   112 bool JSNotAnObject::deleteProperty(ExecState* exec, const Identifier&)

   113 {

   114     ASSERT_UNUSED(exec, exec->hadException() && exec->exception() == m_exception);

   115     return false;

   116 }

   117 

   118 bool JSNotAnObject::deleteProperty(ExecState* exec, unsigned)

   119 {

   120     ASSERT_UNUSED(exec, exec->hadException() && exec->exception() == m_exception);

   121     return false;

   122 }

   123 

   124 void JSNotAnObject::getOwnPropertyNames(ExecState* exec, PropertyNameArray&, EnumerationMode)

   125 {

   126     ASSERT_UNUSED(exec, exec->hadException() && exec->exception() == m_exception);

   127 }

   128 

   129 } // namespace JSC