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/*
* Copyright (c) 2008, 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 ScriptValue_h
#define ScriptValue_h
#include "v8.h"
#ifndef NDEBUG
#include "v8_proxy.h" // for register and unregister global handles.
#endif
namespace WebCore {
class String;
class ScriptValue {
public:
ScriptValue() {}
ScriptValue(v8::Handle<v8::Value> value)
{
if (!value.IsEmpty()) {
m_value = v8::Persistent<v8::Value>::New(value);
#ifndef NDEBUG
V8Proxy::RegisterGlobalHandle(SCRIPTVALUE, this, m_value);
#endif
}
}
ScriptValue(const ScriptValue& value)
{
if (!value.m_value.IsEmpty()) {
m_value = v8::Persistent<v8::Value>::New(value.m_value);
#ifndef NDEBUG
V8Proxy::RegisterGlobalHandle(SCRIPTVALUE, this, m_value);
#endif
}
}
ScriptValue& operator=(const ScriptValue& value)
{
if (this == &value)
return *this;
clear();
if (!value.m_value.IsEmpty()) {
m_value = v8::Persistent<v8::Value>::New(value.m_value);
#ifndef NDEBUG
V8Proxy::RegisterGlobalHandle(SCRIPTVALUE, this, m_value);
#endif
}
return *this;
}
bool operator==(const ScriptValue value) const
{
return m_value == value.m_value;
}
bool operator!=(const ScriptValue value) const
{
return !operator==(value);
}
bool isNull() const
{
return m_value->IsNull();
}
bool isUndefined() const
{
return m_value->IsUndefined();
}
void clear() {
if (!m_value.IsEmpty()) {
#ifndef NDEBUG
V8Proxy::UnregisterGlobalHandle(this, m_value);
#endif
m_value.Dispose();
m_value.Clear();
}
}
~ScriptValue()
{
clear();
}
v8::Handle<v8::Value> v8Value() const { return m_value; }
bool getString(String& result) const;
private:
mutable v8::Persistent<v8::Value> m_value;
};
} // namespace WebCore
#endif // ScriptValue_h
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