Qt 4.8
qitemverifier.cpp
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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 
50 
51 using namespace QPatternist;
52 
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)),
71  this);
72 }
73 
75 {
76  return m_operand->actualReflection();
77 }
78 
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 
99 {
100  return makeItemMappingIterator<Item>(ConstPtr(this),
101  m_operand->evaluateSequence(context),
102  context);
103 }
104 
106 {
107  return makeGenericSequenceType(m_reqType, m_operand->staticType()->cardinality());
108 }
109 
111 {
112  SequenceType::List result;
114  return result;
115 }
116 
118 {
119  return visitor->visit(this);
120 }
121 
virtual NamePool::Ptr namePool() const =0
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const
virtual const SourceLocationReflection * actualReflection() const
Returns this.
static const SequenceType::Ptr ZeroOrMoreItems
QString formatType(const NamePool::Ptr &np, const T &type)
Formats ItemType and SequenceType.
virtual bool itemMatches(const Item &item) const =0
#define Q_ASSERT(cond)
Definition: qglobal.h:1823
virtual const SourceLocationReflection * actualReflection() const
Returns this.
const ItemType::Ptr m_reqType
void append(const T &t)
Inserts value at the end of the list.
Definition: qlist.h:507
Item mapToItem(const Item &, const DynamicContext::Ptr &) const
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
void error(const QString &message, const ReportContext::ErrorCode errorCode, const QSourceLocation &sourceLocation)
virtual Item evaluateSingleton(const DynamicContext::Ptr &) const
The namespace for the internal API of QtXmlPatterns.
virtual SequenceType::Ptr staticType() const
QString stringValue() const
Returns the string value of this Item.
Definition: qitem_p.h:302
virtual Cardinality cardinality() const =0
static QString formatData(const QString &data)
virtual SequenceType::Ptr staticType() const =0
Contains functions used for formatting arguments, such as keywords and paths, in translated strings...
Represents an item in the XPath 2.0 Data Model.
Definition: qitem_p.h:182
void verifyItem(const Item &item, const DynamicContext::Ptr &context) const
const ReportContext::ErrorCode m_errorCode
virtual SequenceType::List expectedOperandTypes() const
ItemVerifier(const Expression::Ptr &operand, const ItemType::Ptr &reqType, const ReportContext::ErrorCode errorCode)
QExplicitlySharedDataPointer< const ItemVerifier > ConstPtr
virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const
The QList class is a template class that provides lists.
Definition: qdatastream.h:62
Base class for all instances that represents something at a certain location.
virtual Item::Iterator::Ptr evaluateSequence(const DynamicContext::Ptr &context) const
Base class for expressions that has exactly one operand.
virtual Item::Iterator::Ptr evaluateSequence(const DynamicContext::Ptr &) const