1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtXmlPatterns module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #include "qbuiltintypes_p.h" 41 #include "qcommonsequencetypes_p.h" 42 43 #include "qparentnodeaxis_p.h" 44 45 QT_BEGIN_NAMESPACE 46 47 using namespace QPatternist; 48 evaluateSingleton(const DynamicContext::Ptr & context) const49Item ParentNodeAxis::evaluateSingleton(const DynamicContext::Ptr &context) const 50 { 51 return context->contextItem().asNode().iterate(QXmlNodeModelIndex::AxisParent)->next(); 52 } 53 properties() const54Expression::Properties ParentNodeAxis::properties() const 55 { 56 return DisableElimination | RequiresContextItem; 57 } 58 accept(const ExpressionVisitor::Ptr & visitor) const59ExpressionVisitorResult::Ptr ParentNodeAxis::accept(const ExpressionVisitor::Ptr &visitor) const 60 { 61 return visitor->visit(this); 62 } 63 expectedContextItemType() const64ItemType::Ptr ParentNodeAxis::expectedContextItemType() const 65 { 66 return BuiltinTypes::node; 67 } 68 staticType() const69SequenceType::Ptr ParentNodeAxis::staticType() const 70 { 71 // Parentless node exists. 72 return CommonSequenceTypes::ZeroOrOneNode; 73 } 74 75 QT_END_NAMESPACE 76