QoreListNodeEvalOptionalRefHolder Class Reference

For use on the stack only: manages result of the optional evaluation of a QoreListNode. More...

#include <QoreListNode.h>

List of all members.

Public Member Functions

DLLLOCAL QoreListNodeEvalOptionalRefHolder (ExceptionSink *n_xsink)
 initializes an empty object and saves the ExceptionSink object
DLLLOCAL QoreListNodeEvalOptionalRefHolder (const QoreListNode *exp, ExceptionSink *n_xsink)
 performs an optional evaluation of the list (sets the dereference flag)
DLLLOCAL ~QoreListNodeEvalOptionalRefHolder ()
 clears the object (dereferences the old object if necessary)
DLLLOCAL void discard ()
 clears the object (dereferences the old object if necessary)
DLLLOCAL void assignEval (const QoreListNode *exp)
 assigns a new value by executing the given list and dereference flag to this object, dereferences the old object if necessary
DLLLOCAL void assign (bool n_needs_deref, QoreListNode *n_val)
 assigns a new value and dereference flag to this object, dereferences the old object if necessary
DLLLOCAL bool needsDeref () const
 returns true if the object contains a temporary (evaluated) value that needs a dereference
DLLLOCAL QoreListNodegetReferencedValue ()
 returns a referenced value - the caller will own the reference
DLLLOCAL void edit ()
 will create a unique list so the list can be edited
DLLLOCAL const QoreListNodeoperator-> () const
 returns a pointer to the QoreListNode object being managed
DLLLOCAL const QoreListNodeoperator* () const
 returns a pointer to the QoreListNode object being managed
DLLLOCAL operator bool () const
 returns true if a QoreListNode object pointer is being managed, false if the pointer is 0

Detailed Description

For use on the stack only: manages result of the optional evaluation of a QoreListNode.


Member Function Documentation

DLLLOCAL QoreListNode* QoreListNodeEvalOptionalRefHolder::getReferencedValue (  )  [inline]

returns a referenced value - the caller will own the reference

The list is referenced if necessary (if it was a temporary value)

Returns:
the list value, where the caller will own the reference count

References AbstractQoreNode::ref().

DLLLOCAL const QoreListNode* QoreListNodeEvalOptionalRefHolder::operator-> (  )  const [inline]

returns a pointer to the QoreListNode object being managed

if you need a referenced value, use getReferencedValue()

Returns:
a pointer to the QoreListNode object being managed (or 0 if none)

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

Generated on 14 Jun 2010 for Qore Programming Language by  doxygen 1.6.1