PrivateImplementation.h File Reference

This header provides declarations of the user-visible portion of the PIMPLHandle template classes that are used in the SimTK Core to implement the PIMPL (private implementation) design pattern. More...

#include "SimTKcommon/internal/common.h"
#include "SimTKcommon/internal/ExceptionMacros.h"
#include <cassert>
#include <iosfwd>

Go to the source code of this file.

Classes
class	PIMPLHandle< HANDLE, IMPL, PTR >
	This class provides some infrastructure useful in making SimTK Private Implementation (PIMPL) classes. More...
class	PIMPLImplementation< HANDLE, IMPL >
	This class provides some infrastructure useful in creating PIMPL Implementation classes (the ones referred to by Handles). More...
Namespaces
namespace	SimTK
	This is the top-level SimTK namespace into which all SimTK names are placed to avoid collision with other symbols.
Defines
#define	SimTK_INSERT_DERIVED_HANDLE_DECLARATIONS(DERIVED, DERIVED_IMPL, PARENT)
#define	SimTK_INSERT_DERIVED_HANDLE_DEFINITIONS(DERIVED, DERIVED_IMPL, PARENT)
Functions
template<class H , class IMPL , bool PTR>
std::ostream &	operator<< (std::ostream &o, const PIMPLHandle< H, IMPL, PTR > &h)

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Detailed Description

This header provides declarations of the user-visible portion of the PIMPLHandle template classes that are used in the SimTK Core to implement the PIMPL (private implementation) design pattern.

The definitions associated with these template method declarations are separated into the companion header file PrivateImplementation_Defs.h with the intent that those definitions will be visible only in library-side code where they need to be instantiated. The definition header file is available for end users as part of the SimTK Core installation, but is not automatically included with SimTKcomon.h as this file is.

SimTK Core client-side headers include this declarations file in order to define the various client side Handle classes, but SimTK Core client-side code never includes the definitions; that is done exclusively in private, library-side code.

---

Define Documentation

#define SimTK_INSERT_DERIVED_HANDLE_DECLARATIONS	(	DERIVED,
		DERIVED_IMPL,
		PARENT		)

Value:

const DERIVED_IMPL& getImpl() const;\
DERIVED_IMPL& updImpl();\
const PARENT& upcast() const;\
PARENT& updUpcast();\
static bool isInstanceOf(const PARENT& p);\
static const DERIVED& downcast(const PARENT& p);\
static DERIVED& updDowncast(PARENT& p);

#define SimTK_INSERT_DERIVED_HANDLE_DEFINITIONS	(	DERIVED,
		DERIVED_IMPL,
		PARENT		)

Value:

const DERIVED_IMPL& DERIVED::getImpl() const {\
    return dynamic_cast<const DERIVED_IMPL&>(PARENT::getImpl());\
}\
DERIVED_IMPL& DERIVED::updImpl() {\
    return dynamic_cast<DERIVED_IMPL&>(PARENT::updImpl());\
}\
const PARENT& DERIVED::upcast() const {\
    return static_cast<const PARENT&>(*this);\
}\
PARENT& DERIVED::updUpcast() {\
    return static_cast<PARENT&>(*this);\
}\
bool DERIVED::isInstanceOf(const PARENT& p) {\
    return dynamic_cast<const DERIVED_IMPL*>(&p.getImpl()) != 0;\
}\
const DERIVED& DERIVED::downcast(const PARENT& p) {\
    assert(isInstanceOf(p));\
    return static_cast<const DERIVED&>(p);\
}\
DERIVED& DERIVED::updDowncast(PARENT& p) {\
    assert(isInstanceOf(p));\
    return static_cast<DERIVED&>(p);\
}\