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  *
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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,
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24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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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:
ScriptValue()49     ScriptValue() { }
ScriptValue(JSC::JSGlobalData & globalData,JSC::JSValue value)50     ScriptValue(JSC::JSGlobalData& globalData, JSC::JSValue value) : m_value(globalData, value) {}
~ScriptValue()51     virtual ~ScriptValue() {}
52 
jsValue()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;
hasNoValue()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