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     2 **

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

     4 ** All rights reserved.

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     6 **

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

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    16 ** GNU Lesser General Public License Usage

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    38 ** $QT_END_LICENSE$

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

    41 

    42 #include "qcommonsequencetypes_p.h"

    43 #include "qgenericsequencetype_p.h"

    44 #include "qitemmappingiterator_p.h"

    45 #include "qpatternistlocale_p.h"

    46 

    47 #include "qitemverifier_p.h"

    48 

    49 QT_BEGIN_NAMESPACE

    50 

    51 using namespace QPatternist;

    52 

    53 ItemVerifier::ItemVerifier(const Expression::Ptr &operand,

    54                            const ItemType::Ptr &reqType,

    55                            const ReportContext::ErrorCode errorCode) : SingleContainer(operand),

    56                                                                        m_reqType(reqType),

    57                                                                        m_errorCode(errorCode)

    58 {

    59     Q_ASSERT(reqType);

    60 }

    61 

    62 void ItemVerifier::verifyItem(const Item &item, const DynamicContext::Ptr &context) const

    63 {

    64     if(m_reqType->itemMatches(item))

    65         return;

    66 

    67     context->error(QtXmlPatterns::tr("The item %1 did not match the required type %2.")

    68                                     .arg(formatData(item.stringValue()),

    69                                          formatType(context->namePool(), m_reqType)),

    70                    m_errorCode,

    71                    this);

    72 }

    73 

    74 const SourceLocationReflection *ItemVerifier::actualReflection() const

    75 {

    76     return m_operand->actualReflection();

    77 }

    78 

    79 Item ItemVerifier::evaluateSingleton(const DynamicContext::Ptr &context) const

    80 {

    81     const Item item(m_operand->evaluateSingleton(context));

    82 

    83     if(item)

    84     {

    85         verifyItem(item, context);

    86         return item;

    87     }

    88     else

    89         return Item();

    90 }

    91 

    92 Item ItemVerifier::mapToItem(const Item &item, const DynamicContext::Ptr &context) const

    93 {

    94     verifyItem(item, context);

    95     return item;

    96 }

    97 

    98 Item::Iterator::Ptr ItemVerifier::evaluateSequence(const DynamicContext::Ptr &context) const

    99 {

   100     return makeItemMappingIterator<Item>(ConstPtr(this),

   101                                          m_operand->evaluateSequence(context),

   102                                          context);

   103 }

   104 

   105 SequenceType::Ptr ItemVerifier::staticType() const

   106 {

   107     return makeGenericSequenceType(m_reqType, m_operand->staticType()->cardinality());

   108 }

   109 

   110 SequenceType::List ItemVerifier::expectedOperandTypes() const

   111 {

   112     SequenceType::List result;

   113     result.append(CommonSequenceTypes::ZeroOrMoreItems);

   114     return result;

   115 }

   116 

   117 ExpressionVisitorResult::Ptr ItemVerifier::accept(const ExpressionVisitor::Ptr &visitor) const

   118 {

   119     return visitor->visit(this);

   120 }

   121 

   122 QT_END_NAMESPACE