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/*
* Copyright (C) 2009, 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SerializedScriptValue_h
#define SerializedScriptValue_h
#include "ScriptValue.h"
#include "V8Binding.h"
#include <v8.h>
#include <wtf/RefCounted.h>
namespace WebCore {
class SerializedScriptValue : public RefCounted<SerializedScriptValue> {
public:
// Deserializes the given value and sets it as a property on the
// object.
static void deserializeAndSetProperty(v8::Handle<v8::Object> object,
const char* propertyName,
v8::PropertyAttribute attribute,
SerializedScriptValue* value)
{
if (!value)
return;
v8::Handle<v8::Value> deserialized = value->deserialize();
object->ForceSet(v8::String::NewSymbol(propertyName), deserialized, attribute);
}
// Creates a serialized representation of the given V8 value.
static PassRefPtr<SerializedScriptValue> create(v8::Handle<v8::Value> value)
{
bool didThrow;
return adoptRef(new SerializedScriptValue(value, didThrow));
}
// Creates a serialized representation of the given V8 value.
//
// If a serialization error occurs (e.g., cyclic input value) this
// function returns an empty representation, schedules a V8 exception to
// be thrown using v8::ThrowException(), and sets |didThrow|. In this case
// the caller must not invoke any V8 operations until control returns to
// V8. When serialization is successful, |didThrow| is false.
static PassRefPtr<SerializedScriptValue> create(v8::Handle<v8::Value> value, bool& didThrow)
{
return adoptRef(new SerializedScriptValue(value, didThrow));
}
// Creates a serialized value with the given data obtained from a
// prior call to toWireString().
static PassRefPtr<SerializedScriptValue> createFromWire(String data)
{
return adoptRef(new SerializedScriptValue(data, WireData));
}
// Creates a serialized representation of WebCore string.
static PassRefPtr<SerializedScriptValue> create(String data)
{
return adoptRef(new SerializedScriptValue(data, StringValue));
}
// Creates an empty serialized value.
static PassRefPtr<SerializedScriptValue> create()
{
return adoptRef(new SerializedScriptValue());
}
PassRefPtr<SerializedScriptValue> release()
{
RefPtr<SerializedScriptValue> result = adoptRef(new SerializedScriptValue(m_data, WireData));
m_data = String();
return result.release();
}
String toWireString() const { return m_data; }
// Deserializes the value (in the current context). Returns a null value in
// case of failure.
v8::Handle<v8::Value> deserialize();
private:
enum StringDataMode {
StringValue,
WireData
};
SerializedScriptValue() { }
SerializedScriptValue(v8::Handle<v8::Value>, bool& didThrow);
SerializedScriptValue(String data, StringDataMode mode);
String m_data;
};
} // namespace WebCore
#endif // SerializedScriptValue_h
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