Qt 4.8
Public Functions | List of all members
QPatternist::ParentNodeAxis Class Reference

Corresponds to the expression parent::node(). More...

#include <qparentnodeaxis_p.h>

Inheritance diagram for QPatternist::ParentNodeAxis:
QPatternist::EmptyContainer QPatternist::Expression QSharedData QPatternist::CppCastingHelper< Expression > QPatternist::SourceLocationReflection

Public Functions

virtual ExpressionVisitorResult::Ptr accept (const ExpressionVisitor::Ptr &visitor) const
 
virtual Item evaluateSingleton (const DynamicContext::Ptr &context) const
 
virtual ItemType::Ptr expectedContextItemType () const
 
virtual Expression::Properties properties () const
 
virtual SequenceType::Ptr staticType () const
 
- Public Functions inherited from QPatternist::EmptyContainer
virtual Expression::List operands () const
 
virtual void setOperands (const Expression::List &)
 
- Public Functions inherited from QPatternist::Expression
virtual const SourceLocationReflectionactualReflection () const
 Returns this. More...
 
virtual void announceFocusType (const ItemType::Ptr &itemType)
 
virtual Expression::Ptr compress (const StaticContext::Ptr &context)
 
Properties deepProperties () const
 Computes the union of properties for this Expression and all its descending children. More...
 
virtual Properties dependencies () const
 
virtual QString description () const
 
virtual bool evaluateEBV (const DynamicContext::Ptr &context) const
 
virtual Item::Iterator::Ptr evaluateSequence (const DynamicContext::Ptr &context) const
 
virtual void evaluateToSequenceReceiver (const DynamicContext::Ptr &context) const
 
 Expression ()
 
bool has (const Property prop) const
 
bool hasDependency (const Property prop) const
 
virtual ID id () const
 
bool is (const ID id) const
 
bool isEvaluated () const
 
virtual ItemType::Ptr newFocusType () const
 
virtual QList< QExplicitlySharedDataPointer< OptimizationPass > > optimizationPasses () const
 
virtual PatternPriority patternPriority () const
 
const Expression::Ptrrewrite (const Expression::Ptr &to, const StaticContext::Ptr &context) const
 Rewrites this Expression to to, and return to. More...
 
virtual Expression::Ptr typeCheck (const StaticContext::Ptr &context, const SequenceType::Ptr &reqType)
 
virtual ~Expression ()
 
- Public Functions inherited from QSharedData
 QSharedData ()
 Constructs a QSharedData object with a reference count of 0. More...
 
 QSharedData (const QSharedData &)
 Constructs a QSharedData object with reference count 0. More...
 
- Public Functions inherited from QPatternist::CppCastingHelper< Expression >
const TCastTarget * as () const
 
TCastTarget * as ()
 
- Public Functions inherited from QPatternist::SourceLocationReflection
virtual QSourceLocation sourceLocation () const
 
 SourceLocationReflection ()
 
virtual ~SourceLocationReflection ()
 

Additional Inherited Members

- Public Types inherited from QPatternist::Expression
typedef QExplicitlySharedDataPointer< const ExpressionConstPtr
 A smart pointer wrapping const Expression instances. More...
 
enum  ID {
  IDBooleanValue = 1, IDCountFN, IDEmptyFN, IDExistsFN,
  IDExpressionSequence, IDGeneralComparison, IDIfThenClause, IDIgnorableExpression,
  IDIntegerValue, IDPositionFN, IDStringValue, IDValueComparison,
  IDRangeVariableReference, IDContextItem, IDUserFunctionCallsite, IDExpressionVariableReference,
  IDAttributeConstructor, IDUpperCaseFN, IDLowerCaseFN, IDFirstItemPredicate,
  IDEmptySequence, IDReturnOrderBy, IDLetClause, IDForClause,
  IDPath, IDNamespaceConstructor, IDArgumentReference, IDGenericPredicate,
  IDAxisStep, IDFloat, IDCombineNodes, IDUnresolvedVariableReference,
  IDCardinalityVerifier
}
 
typedef QList< Expression::PtrList
 
typedef QFlags< PropertyProperties
 
enum  Property {
  UseContextItem = 1, DisableElimination = 1 << 1, IsEvaluated = 1 << 2, DisableTypingDeduction = 1 << 3,
  EmptynessFollowsChild = 1 << 4, RewriteToEmptyOnEmpty = 1 << 5, RequiresFocus = 1 << 6, AffectsOrderOnly = 1 << 7,
  RequiresContextItem = (1 << 8) | RequiresFocus, CreatesFocusForLast = 1 << 9, LastOperandIsCollation = 1 << 10, DependsOnLocalVariable = (1 << 11) | DisableElimination,
  EvaluationCacheRedundant = (1 << 12), IsNodeConstructor = 1 << 13, RequiresCurrentItem = 1 << 14
}
 
typedef QExplicitlySharedDataPointer< ExpressionPtr
 A smart pointer wrapping mutable Expression instances. More...
 
typedef ::QAbstractXmlForwardIterator< Expression::PtrQAbstractXmlForwardIterator
 
typedef QVector< Expression::PtrVector
 
- Static Public Functions inherited from QPatternist::Expression
static void rewrite (Expression::Ptr &old, const Expression::Ptr &New, const StaticContext::Ptr &context)
 
- Public Variables inherited from QSharedData
QAtomicInt ref
 
- Protected Functions inherited from QPatternist::EmptyContainer
virtual bool compressOperands (const StaticContext::Ptr &context)
 
virtual SequenceType::List expectedOperandTypes () const
 
- Protected Functions inherited from QPatternist::Expression
void typeCheckOperands (const StaticContext::Ptr &context)
 
- Protected Functions inherited from QPatternist::CppCastingHelper< Expression >
 CppCastingHelper ()
 

Detailed Description

Corresponds to the expression parent::node().

This AST node is now useless, due to refactorings. Prevously we had Item QAbstractXmlNodeModel::parent(), which didn't have the overhead of allocating an iterator for a single node. However, in order to stream line the API it is now gone and hence the node performs exactly the same as AxisStep.

Author
Frans Englich frans.nosp@m..eng.nosp@m.lich@.nosp@m.noki.nosp@m.a.com

Definition at line 75 of file qparentnodeaxis_p.h.

Functions

◆ accept()

ExpressionVisitorResult::Ptr ParentNodeAxis::accept ( const ExpressionVisitor::Ptr visitor) const
virtual

Implements QPatternist::Expression.

Definition at line 61 of file qparentnodeaxis.cpp.

62 {
63  return visitor->visit(this);
64 }

◆ evaluateSingleton()

Item ParentNodeAxis::evaluateSingleton ( const DynamicContext::Ptr context) const
virtual

Reimplemented from QPatternist::Expression.

Definition at line 51 of file qparentnodeaxis.cpp.

52 {
53  return context->contextItem().asNode().iterate(QXmlNodeModelIndex::AxisParent)->next();
54 }
virtual Item contextItem() const =0
const QXmlNodeModelIndex & asNode() const
Definition: qitem_p.h:379
QExplicitlySharedDataPointer< QAbstractXmlForwardIterator< QXmlNodeModelIndex > > iterate(const Axis axis) const
Definition: qitem_p.h:456

◆ expectedContextItemType()

ItemType::Ptr ParentNodeAxis::expectedContextItemType ( ) const
virtual
Returns
always BuiltinTypes::node;

Reimplemented from QPatternist::Expression.

Definition at line 66 of file qparentnodeaxis.cpp.

67 {
68  return BuiltinTypes::node;
69 }
static const AnyNodeType::Ptr node

◆ properties()

Expression::Properties ParentNodeAxis::properties ( ) const
virtual
Returns
always DisableElimination

Reimplemented from QPatternist::Expression.

Definition at line 56 of file qparentnodeaxis.cpp.

◆ staticType()

SequenceType::Ptr ParentNodeAxis::staticType ( ) const
virtual
Returns
always CommonSequenceTypes::ExactlyOneNode;

Implements QPatternist::Expression.

Definition at line 71 of file qparentnodeaxis.cpp.

72 {
73  // Parentless node exists.
75 }
static const SequenceType::Ptr ZeroOrOneNode

The documentation for this class was generated from the following files: