QPatternist::SelfToSelfCaster Class Reference

Casts a value to itself. Essentially, this AtomicCaster does nothing. More...

#include <qatomiccasters_p.h>

Inheritance diagram for QPatternist::SelfToSelfCaster:

Public Functions
virtual Item	castFrom (const Item &from, const QExplicitlySharedDataPointer< DynamicContext > &context) const
Public Functions inherited from QPatternist::AtomicCaster
	AtomicCaster ()
virtual	~AtomicCaster ()
Public Functions inherited from QPatternist::AtomicTypeVisitorResult
	AtomicTypeVisitorResult ()
virtual	~AtomicTypeVisitorResult ()
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 Types inherited from QPatternist::AtomicCaster
typedef QExplicitlySharedDataPointer< AtomicCaster >	Ptr
Public Types inherited from QPatternist::AtomicTypeVisitorResult
typedef QExplicitlySharedDataPointer< AtomicTypeVisitorResult >	Ptr
Public Variables inherited from QSharedData
QAtomicInt	ref

Detailed Description

Casts a value to itself. Essentially, this AtomicCaster does nothing.

Casting a value to the type of itself is defined to be a noop, no operation. When it can be statically detected that will be done, CastAs rewrites itself appropriately during compilation, but in some cases insufficent data is available at compile time and then is this class need on a case-per-case base at evaluation time.

Author

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

Definition at line 315 of file qatomiccasters_p.h.

Functions

castFrom()

Item SelfToSelfCaster::castFrom ( const Item &  from, const QExplicitlySharedDataPointer< DynamicContext > &  context  ) const

virtual

This function simply returns from.

Implements QPatternist::AtomicCaster.

Definition at line 154 of file qatomiccasters.cpp.

{
    return from;
}

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

• /src/xmlpatterns/data/qatomiccasters_p.h
• /src/xmlpatterns/data/qatomiccasters.cpp