1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the QtXmlPatterns module of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #include "qboolean_p.h"

    43 #include "qgenericsequencetype_p.h"

    44 

    45 #include "qrangevariablereference_p.h"

    46 

    47 QT_BEGIN_NAMESPACE

    48 

    49 using namespace QPatternist;

    50 

    51 RangeVariableReference::RangeVariableReference(const Expression::Ptr &source,

    52                                                const VariableSlotID slotP) : VariableReference(slotP),

    53                                                                              m_sourceExpression(source)

    54 {

    55     Q_ASSERT(source);

    56 }

    57 

    58 bool RangeVariableReference::evaluateEBV(const DynamicContext::Ptr &context) const

    59 {

    60     Q_ASSERT_X(context->rangeVariable(slot()), Q_FUNC_INFO, "The range variable must be set.");

    61     return Boolean::evaluateEBV(context->rangeVariable(slot()), context);

    62 }

    63 

    64 Item RangeVariableReference::evaluateSingleton(const DynamicContext::Ptr &context) const

    65 {

    66     Q_ASSERT_X(context->rangeVariable(slot()), Q_FUNC_INFO, "The range variable must be set.");

    67     return context->rangeVariable(slot());

    68 }

    69 

    70 SequenceType::Ptr RangeVariableReference::staticType() const

    71 {

    72     return makeGenericSequenceType(m_sourceExpression->staticType()->itemType(),

    73                                    Cardinality::exactlyOne());

    74 }

    75 

    76 Expression::ID RangeVariableReference::id() const

    77 {

    78     return IDRangeVariableReference;

    79 }

    80 

    81 ExpressionVisitorResult::Ptr

    82 RangeVariableReference::accept(const ExpressionVisitor::Ptr &visitor) const

    83 {

    84     return visitor->visit(this);

    85 }

    86 

    87 Expression::Properties RangeVariableReference::properties() const

    88 {

    89     return DependsOnLocalVariable;

    90 }

    91 

    92 QT_END_NAMESPACE