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/*
* Copyright (C) 2014, 2015 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 DFA_h
#define DFA_h
#if ENABLE(CONTENT_EXTENSIONS)
#include "ContentExtensionsDebugging.h"
#include "DFANode.h"
#include "PlatformExportMacros.h"
#include <wtf/Vector.h>
namespace WebCore {
namespace ContentExtensions {
// The DFA abstract a partial DFA graph in a compact form.
struct WEBCORE_EXPORT DFA {
static DFA empty();
void shrinkToFit();
void minimize();
unsigned graphSize() const;
size_t memoryUsed() const;
#if CONTENT_EXTENSIONS_STATE_MACHINE_DEBUGGING
void debugPrintDot() const;
#endif
Vector<DFANode, 0, ContentExtensionsOverflowHandler> nodes;
Vector<uint64_t, 0, ContentExtensionsOverflowHandler> actions;
Vector<CharRange, 0, ContentExtensionsOverflowHandler> transitionRanges;
Vector<uint32_t, 0, ContentExtensionsOverflowHandler> transitionDestinations;
unsigned root { 0 };
};
inline const CharRange& DFANode::ConstRangeIterator::range() const
{
return dfa.transitionRanges[position];
}
inline uint32_t DFANode::ConstRangeIterator::target() const
{
return dfa.transitionDestinations[position];
}
inline const CharRange& DFANode::RangeIterator::range() const
{
return dfa.transitionRanges[position];
}
inline uint32_t DFANode::RangeIterator::target() const
{
return dfa.transitionDestinations[position];
}
inline void DFANode::RangeIterator::resetTarget(uint32_t newTarget)
{
dfa.transitionDestinations[position] = newTarget;
}
}
} // namespace WebCore
#endif // ENABLE(CONTENT_EXTENSIONS)
#endif // DFA_h
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