Constructs a namespace on an element, and naturally only appears as a child of ElementConstructor. More...

#include <qnamespaceconstructor_p.h>

Inheritance diagram for QPatternist::NamespaceConstructor:

Public Functions
virtual ExpressionVisitorResult::Ptr	accept (const ExpressionVisitor::Ptr &visitor) const

virtual void	evaluateToSequenceReceiver (const DynamicContext::Ptr &context) const

virtual SequenceType::List	expectedOperandTypes () const

virtual ID	id () const

const QXmlName &	namespaceBinding () const

	NamespaceConstructor (const QXmlName nb)

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 SourceLocationReflection *	actualReflection () 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 Item	evaluateSingleton (const DynamicContext::Ptr &context) const

virtual ItemType::Ptr	expectedContextItemType () const

	Expression ()

bool	has (const Property prop) const

bool	hasDependency (const Property prop) 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::Ptr &	rewrite (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 ()

Properties
const QXmlName	m_binding

Additional Inherited Members
Public Types inherited from QPatternist::Expression
typedef QExplicitlySharedDataPointer< const Expression >	ConstPtr
	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::Ptr >	List

typedef QFlags< Property >	Properties

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< Expression >	Ptr
	A smart pointer wrapping mutable Expression instances. More...

typedef ::QAbstractXmlForwardIterator< Expression::Ptr >	QAbstractXmlForwardIterator

typedef QVector< Expression::Ptr >	Vector

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)

Protected Functions inherited from QPatternist::Expression
void	typeCheckOperands (const StaticContext::Ptr &context)

Protected Functions inherited from QPatternist::CppCastingHelper< Expression >
	CppCastingHelper ()

Detailed Description

Constructs a namespace on an element, and naturally only appears as a child of ElementConstructor.

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

Definition at line 70 of file qnamespaceconstructor_p.h.

Constructors and Destructors

◆ NamespaceConstructor()

NamespaceConstructor::NamespaceConstructor ( const QXmlName nb )

Definition at line 50 of file qnamespaceconstructor.cpp.

                                                             : m_binding(nb)
 {
     Q_ASSERT(!m_binding.isNull());
 }

Functions

◆ accept()

ExpressionVisitorResult::Ptr NamespaceConstructor::accept ( const ExpressionVisitor::Ptr & visitor ) const

virtual

Implements QPatternist::Expression.

Definition at line 77 of file qnamespaceconstructor.cpp.

 {
     return visitor->visit(this);
 }

◆ evaluateToSequenceReceiver()

void NamespaceConstructor::evaluateToSequenceReceiver ( const DynamicContext::Ptr & context ) const

virtual

Evaluates this Expression by sending its output to DynamicContext::outputReceiver().

Reimplemented from QPatternist::Expression.

Definition at line 55 of file qnamespaceconstructor.cpp.

 {
     context->outputReceiver()->namespaceBinding(m_binding);
 }

◆ expectedOperandTypes()

SequenceType::List NamespaceConstructor::expectedOperandTypes ( ) const

virtual

Returns: a list containing one CommonSequenceTypes::ExactlyOneString instance.

Reimplemented from QPatternist::EmptyContainer.

Definition at line 65 of file qnamespaceconstructor.cpp.

 {
     SequenceType::List result;
     result.append(CommonSequenceTypes::ExactlyOneString);
     return result;
 }

◆ id()

Expression::ID NamespaceConstructor::id ( ) const

virtual

This property, which has no setter, returns an enum value that uniquely identifies this Expression. Patternist makes no use of C++'s dynamic_cast feature, but uses this polymorphic function instead.

Returns: always IgnorableExpression.

Reimplemented from QPatternist::Expression.

Definition at line 82 of file qnamespaceconstructor.cpp.

Referenced by namespaceBinding().

 {
     return IDNamespaceConstructor;
 }

◆ namespaceBinding()

const QXmlName& QPatternist::NamespaceConstructor::namespaceBinding ( ) const

inline

Definition at line 94 of file qnamespaceconstructor_p.h.

         {
             return m_binding;
         }

◆ properties()

Expression::Properties NamespaceConstructor::properties ( ) const

virtual

Returns: a bitwise OR'd value of properties, describing the characteristics of the expression. These properties affects how this Expression is treated in for example type checking stages.

The default implementation returns 0. Override and let the function return a different value, if that's of interest.

An important decision when re-implementing properties() is whether to OR in the properties() of ones operands. For instance, if an operand has RequiresFocus set, that flag nost likely applies to the apparent as well, since it depends on its operand.

See also: deepProperties()

Returns: Expression::None, meaning no special properties

Reimplemented from QPatternist::Expression.

Definition at line 72 of file qnamespaceconstructor.cpp.

 {
     return DisableElimination | IsNodeConstructor;
 }

◆ staticType()

SequenceType::Ptr NamespaceConstructor::staticType ( ) const

virtual

The static type is exactly one attribute node. It's unclear what affects the static type has, but specifying anything else could lead to complications wrt. node order, XQTY0024. Of course, it's not conceptually correct, since a namespace node isn't an attribute node.

Implements QPatternist::Expression.

Definition at line 60 of file qnamespaceconstructor.cpp.

 {
     return CommonSequenceTypes::ExactlyOneAttribute;
 }

Properties

◆ m_binding

const QXmlName QPatternist::NamespaceConstructor::m_binding

private

Definition at line 101 of file qnamespaceconstructor_p.h.

Referenced by evaluateToSequenceReceiver(), namespaceBinding(), and NamespaceConstructor().

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

/src/xmlpatterns/expr/qnamespaceconstructor_p.h
/src/xmlpatterns/expr/qnamespaceconstructor.cpp

Public Functions

Properties

Additional Inherited Members

Detailed Description

Constructors and Destructors

◆ NamespaceConstructor()

Functions

◆ accept()

◆ evaluateToSequenceReceiver()

◆ expectedOperandTypes()

◆ id()

◆ namespaceBinding()

◆ properties()

◆ staticType()

Properties

◆ m_binding