1/*
2 * Copyright 2005 Frerich Raabe <raabe@kde.org>
3 * Copyright (C) 2006, 2013 Apple Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "config.h"
28#include "XPathExpressionNode.h"
29
30#include <wtf/NeverDestroyed.h>
31#include <wtf/StdLibExtras.h>
32
33namespace WebCore {
34namespace XPath {
35
36EvaluationContext& Expression::evaluationContext()
37{
38 static NeverDestroyed<EvaluationContext> context;
39 return context;
40}
41
42Expression::Expression()
43 : m_isContextNodeSensitive(false)
44 , m_isContextPositionSensitive(false)
45 , m_isContextSizeSensitive(false)
46{
47}
48
49void Expression::setSubexpressions(Vector<std::unique_ptr<Expression>> subexpressions)
50{
51 ASSERT(m_subexpressions.isEmpty());
52 m_subexpressions = WTFMove(subexpressions);
53 for (auto& subexpression : m_subexpressions) {
54 m_isContextNodeSensitive |= subexpression->m_isContextNodeSensitive;
55 m_isContextPositionSensitive |= subexpression->m_isContextPositionSensitive;
56 m_isContextSizeSensitive |= subexpression->m_isContextSizeSensitive;
57 }
58}
59
60} // namespace XPath
61} // namespace WebCore
62