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/*
* Copyright 2005 Frerich Raabe <raabe@kde.org>
* Copyright (C) 2006, 2013 Apple Inc.
*
* 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 THE AUTHOR ``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 AUTHOR 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.
*/
#include "config.h"
#include "XPathExpressionNode.h"
#include <wtf/NeverDestroyed.h>
#include <wtf/StdLibExtras.h>
namespace WebCore {
namespace XPath {
EvaluationContext& Expression::evaluationContext()
{
static NeverDestroyed<EvaluationContext> context;
return context;
}
Expression::Expression()
: m_isContextNodeSensitive(false)
, m_isContextPositionSensitive(false)
, m_isContextSizeSensitive(false)
{
}
void Expression::setSubexpressions(Vector<std::unique_ptr<Expression>> subexpressions)
{
ASSERT(m_subexpressions.isEmpty());
m_subexpressions = WTFMove(subexpressions);
for (auto& subexpression : m_subexpressions) {
m_isContextNodeSensitive |= subexpression->m_isContextNodeSensitive;
m_isContextPositionSensitive |= subexpression->m_isContextPositionSensitive;
m_isContextSizeSensitive |= subexpression->m_isContextSizeSensitive;
}
}
} // namespace XPath
} // namespace WebCore
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