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      1 /*
      2  * Copyright (C) 2006, 2007, 2008 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 #include "config.h"
     30 #include "ScriptValue.h"
     31 
     32 #include "SerializedScriptValue.h"
     33 
     34 #include <JavaScriptCore/APICast.h>
     35 #include <JavaScriptCore/JSValueRef.h>
     36 
     37 #include <runtime/JSLock.h>
     38 #include <runtime/Protect.h>
     39 #include <runtime/UString.h>
     40 
     41 using namespace JSC;
     42 
     43 namespace WebCore {
     44 
     45 bool ScriptValue::getString(ScriptState* scriptState, String& result) const
     46 {
     47     if (!m_value)
     48         return false;
     49     JSLock lock(SilenceAssertionsOnly);
     50     UString ustring;
     51     if (!m_value.get().getString(scriptState, ustring))
     52         return false;
     53     result = ustring;
     54     return true;
     55 }
     56 
     57 bool ScriptValue::isEqual(ScriptState* scriptState, const ScriptValue& anotherValue) const
     58 {
     59     if (hasNoValue())
     60         return anotherValue.hasNoValue();
     61 
     62     return JSValueIsEqual(toRef(scriptState), toRef(scriptState, jsValue()), toRef(scriptState, anotherValue.jsValue()), 0);
     63 }
     64 
     65 bool ScriptValue::isNull() const
     66 {
     67     if (!m_value)
     68         return false;
     69     return m_value.get().isNull();
     70 }
     71 
     72 bool ScriptValue::isUndefined() const
     73 {
     74     if (!m_value)
     75         return false;
     76     return m_value.get().isUndefined();
     77 }
     78 
     79 bool ScriptValue::isObject() const
     80 {
     81     if (!m_value)
     82         return false;
     83     return m_value.get().isObject();
     84 }
     85 
     86 PassRefPtr<SerializedScriptValue> ScriptValue::serialize(ScriptState* scriptState)
     87 {
     88     return SerializedScriptValue::create(scriptState, jsValue());
     89 }
     90 
     91 ScriptValue ScriptValue::deserialize(ScriptState* scriptState, SerializedScriptValue* value)
     92 {
     93     return ScriptValue(value->deserialize(scriptState, scriptState->lexicalGlobalObject()));
     94 }
     95 
     96 } // namespace WebCore
     97