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* Copyright (C) 2009 Google Inc. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef ScopedPersistent_h
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#define ScopedPersistent_h
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#include <wtf/Noncopyable.h>
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class ScopedPersistent {
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WTF_MAKE_NONCOPYABLE(ScopedPersistent);
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ScopedPersistent() { }
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explicit ScopedPersistent(v8::Handle<T> handle)
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: m_handle(v8::Persistent<T>::New(handle))
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ALWAYS_INLINE v8::Persistent<T> get() const { return m_handle; }
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ALWAYS_INLINE v8::Persistent<T> operator->() const { return m_handle; }
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bool isEmpty() const { return m_handle.IsEmpty(); }
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void set(v8::Handle<T> handle)
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m_handle = v8::Persistent<T>::New(handle);
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void adopt(v8::Persistent<T> handle)
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// Note: This is clear in the OwnPtr sense, not the v8::Handle sense.
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if (m_handle.IsEmpty())
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v8::Persistent<T> m_handle;
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} // namespace WebCore
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#endif // ScopedPersistent_h