_Handle Class Reference

Handle/Body: Base for Handle classes manipuating a Body. More...

#include <_Handle.h>

Inheritance diagram for _Handle:

List of all members.

Public Member Functions
	_Handle ()
	_Handle (_Body *body_r)
	_Handle (const _Handle &rhs)
_Handle &	operator= (_Body *rhs)
_Handle &	operator= (const _Handle &rhs)
virtual	~_Handle ()
	operator const void * () const
_Body *	operator-> ()
const _Body *	operator-> () const
_Body &	operator * ()
const _Body &	operator * () const
virtual std::ostream &	dumpOn (std::ostream &str) const
Static Private Member Functions
static void *	operator new (size_t)
Private Attributes
_Body *	_body

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Detailed Description

Handle/Body: Base for Handle classes manipuating a Body.

_Handle provides the basic methods to access and manipulate a _Body (reference counted representation class). It maintains the _Body reference counter on construction, assignment and deletion of the _Handle. It provides operator-> and operator* to access the _Body.

As real life representation class will be derived from _Body, real life handles will be derived from _Handle. For convenience the template class _DHandle is provided. It realizes the handle to a specific Body class.

 struct DataRep : public _Body {
   void baa() {}
 };

 class VarAccess {
   private:
     _DHandle<DataTypeRep> _rep;
   public:
     void baa() { return _rep->baa(); }
 };

 class PtrAccess : _DHandle<DataRep> {
 };

 VarAccess v;
 v.baa();

 PtrAccess p;
 p->baa();
 (*p).baa();
 

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Constructor & Destructor Documentation

_Handle::_Handle (   )  [inline]

Constructor.

_Handle::_Handle (  _Body *  body_r  )  [inline]

Constructor.

_Handle::_Handle (  const _Handle &  rhs  )  [inline]

CopyConstructor.

virtual _Handle::~_Handle (   )  [inline, virtual]

Destructor.

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Member Function Documentation

virtual std::ostream& _Handle::dumpOn (  std::ostream &  str  )  const [virtual]

Derived classes may overload this to realize std::ostream & operator<< for _Handle classes.

const _Body& _Handle::operator * (   )  const [inline]

Const access _body.

_Body& _Handle::operator * (   )  [inline]

Access _body.

_Handle::operator const void * (   )  const [inline]

Test for _body.

static void* _Handle::operator new (  size_t   )  [static, private]

const _Body* _Handle::operator-> (   )  const [inline]

Forward const access to _body. Reimplemented in _DHandle< _Tp >, and _DHandle< _D >.

_Body* _Handle::operator-> (   )  [inline]

Forward access to _body. Reimplemented in _DHandle< _Tp >, and _DHandle< _D >.

_Handle& _Handle::operator= (  const _Handle &  rhs  )  [inline]

Assignment.

_Handle& _Handle::operator= (  _Body *  rhs  )  [inline]

Assignment.

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Member Data Documentation

_Body* _Handle::_body [private]

The _Body

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

• _Handle.h

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