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* Copyright (C) 2010 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
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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY 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 OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef ArenaTestHelpers_h
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#define ArenaTestHelpers_h
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#include <gtest/gtest.h>
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#include <wtf/NotFound.h>
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#include <wtf/Vector.h>
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namespace ArenaTestHelpers {
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// An allocator for the PODArena which tracks the regions which have
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class TrackedAllocator : public PODArena::FastMallocAllocator {
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static PassRefPtr<TrackedAllocator> create()
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return adoptRef(new TrackedAllocator);
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virtual void* allocate(size_t size)
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void* result = PODArena::FastMallocAllocator::allocate(size);
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m_allocatedRegions.append(result);
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virtual void free(void* ptr)
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size_t slot = m_allocatedRegions.find(ptr);
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ASSERT_NE(slot, notFound);
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m_allocatedRegions.remove(slot);
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PODArena::FastMallocAllocator::free(ptr);
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int numRegions() const
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return m_allocatedRegions.size();
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TrackedAllocator() { }
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Vector<void*> m_allocatedRegions;
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} // namespace ArenaTestHelpers
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} // namespace WebCore
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#endif // ArenaTestHelpers_h