QPatternist::ExpressionIdentifier Class Reference

Abstract base class for all classes that identify Expressions based on some criteria. More...

#include <qoptimizerframework_p.h>

Inheritance diagram for QPatternist::ExpressionIdentifier:

Public Types
typedef QList< ExpressionIdentifier::Ptr >	List
typedef QExplicitlySharedDataPointer< ExpressionIdentifier >	Ptr

Public Functions
	ExpressionIdentifier ()
virtual bool	matches (const Expression::Ptr &expr) const =0
virtual	~ExpressionIdentifier ()
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...

Additional Inherited Members
Public Variables inherited from QSharedData
QAtomicInt	ref

Detailed Description

Abstract base class for all classes that identify Expressions based on some criteria.

ExpressionIdentifier is one of the building block of Patternist's optimizer framework. An ExpressionIdentifier sub-class has the responsibility of determining whether a particular Expression is the one an OptimizationPass should apply for.

This class and sub-classes are never used on their own, but in cooperation with OptimizationPass.

Author

Frans englich frans.nosp@m..eng.nosp@m.lich@.nosp@m.noki.nosp@m.a.com

Definition at line 126 of file qoptimizerframework_p.h.

Typedefs

List

typedef QList<ExpressionIdentifier::Ptr> QPatternist::ExpressionIdentifier::List

Definition at line 130 of file qoptimizerframework_p.h.

Ptr

typedef QExplicitlySharedDataPointer<ExpressionIdentifier> QPatternist::ExpressionIdentifier::Ptr

Definition at line 129 of file qoptimizerframework_p.h.

Constructors and Destructors

ExpressionIdentifier()

QPatternist::ExpressionIdentifier::ExpressionIdentifier ( )

inline

For some reason this constructor cannot be synthesized.

Definition at line 135 of file qoptimizerframework_p.h.

        {
        }

~ExpressionIdentifier()

ExpressionIdentifier::~ExpressionIdentifier ( )

virtual

Definition at line 48 of file qoptimizerframework.cpp.

{
}

Functions

matches()

virtual bool QPatternist::ExpressionIdentifier::matches ( const Expression::Ptr &  expr ) const

pure virtual

Parameters

expr	the Expression to be tested. This is guranteed to always be a non null, valid pointer.

Returns

true if expr matches as according to this ExpressionIdentifier, otherwise false.

Implemented in QPatternist::BooleanIdentifier, QPatternist::IntegerIdentifier, QPatternist::ComparisonIdentifier, QPatternist::BySequenceTypeIdentifier, and QPatternist::ByIDIdentifier.

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

• /src/xmlpatterns/expr/qoptimizerframework_p.h
• /src/xmlpatterns/expr/qoptimizerframework.cpp