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      1 /*
      2  * Copyright (c) 2008, 2011 Google 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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef ScriptValue_h
     32 #define ScriptValue_h
     33 
     34 #include "JSDOMBinding.h"
     35 #include "PlatformString.h"
     36 #include "SerializedScriptValue.h"
     37 #include "ScriptState.h"
     38 #include <heap/Strong.h>
     39 #include <runtime/JSValue.h>
     40 #include <wtf/PassRefPtr.h>
     41 
     42 namespace WebCore {
     43 
     44 class InspectorValue;
     45 class SerializedScriptValue;
     46 
     47 class ScriptValue {
     48 public:
     49     ScriptValue() { }
     50     ScriptValue(JSC::JSGlobalData& globalData, JSC::JSValue value) : m_value(globalData, value) {}
     51     virtual ~ScriptValue() {}
     52 
     53     JSC::JSValue jsValue() const { return m_value.get(); }
     54     bool getString(ScriptState*, String& result) const;
     55     String toString(ScriptState*) const;
     56     bool isEqual(ScriptState*, const ScriptValue&) const;
     57     bool isNull() const;
     58     bool isUndefined() const;
     59     bool isObject() const;
     60     bool isFunction() const;
     61     bool hasNoValue() const { return !m_value; }
     62 
     63     bool operator==(const ScriptValue& other) const { return m_value == other.m_value; }
     64 
     65     PassRefPtr<SerializedScriptValue> serialize(ScriptState*, SerializationErrorMode = Throwing);
     66     static ScriptValue deserialize(ScriptState*, SerializedScriptValue*, SerializationErrorMode = Throwing);
     67 
     68     static ScriptValue undefined();
     69 
     70 #if ENABLE(INSPECTOR)
     71     PassRefPtr<InspectorValue> toInspectorValue(ScriptState*) const;
     72 #endif
     73 
     74 private:
     75     JSC::Strong<JSC::Unknown> m_value;
     76 };
     77 
     78 } // namespace WebCore
     79 
     80 #endif // ScriptValue_h
     81