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template<class TVisitedComponentList>
TUniqueIDOfVisitedComponentList getUniqueIDOfVisitedComponentTypeList(void)
{
static Type2Type<TVisitedComponentList> UniqueObjectForVisitedComponentTypeList;
return (size_t)(&UniqueObjectForVisitedComponentTypeList);
}
template<class TVisitedComponentList>
TCastWindowComponentTo* const castWindowComponentInternal(PegThing* const Window)
{
ASSERT(Window!=NULL);
if(Window==NULL)
return NULL;
STATIC_CHECK(!(boost::mpl::empty<TVisitedComponentList>::value), TVisitedComponentList_must_be_not_empty_and_be__boost_mpl_list_c__type);
const TUniqueIDOfVisitedComponentList UniqueIDOfVisitedComponentList=this->getUniqueIDOfVisitedComponentTypeList<TVisitedComponentList>();
const TCasterRepositorys::const_iterator NotFound=_casterRepositorys.end();
TCasterRepositorys::const_iterator findedCasterRepositoryForThisVisitedComponentList=_casterRepositorys.find(UniqueIDOfVisitedComponentList);
if(findedCasterRepositoryForThisVisitedComponentList==NotFound)
{
this->registerVisitedComponentList<TVisitedComponentList>();
findedCasterRepositoryForThisVisitedComponentList=_casterRepositorys.find(UniqueIDOfVisitedComponentList);
}
ASSERT(findedCasterRepositoryForThisVisitedComponentList!=NotFound);
const TCasterRepository::const_iterator NotFoundCaster=findedCasterRepositoryForThisVisitedComponentList->second->end();
const unsigned int ComponentType=const_cast<PegThing* const>(Window)->Type();
const TCasterRepository::const_iterator findedCaster=findedCasterRepositoryForThisVisitedComponentList->second->find(ComponentType);
if(findedCaster==NotFoundCaster)
return NULL;
ASSERT(findedCaster!=NotFoundCaster);
return (*(findedCaster->second))(Window);
}
template<class TCurrentItem, class TEnd>
void registerVisitedComponentListItem(TCasterRepository& casterRepository, TCurrentItem CurrentItem, TEnd End)
{
using namespace boost;
enum {WINDOW_COMPONENT_TYPE=mpl::deref<TCurrentItem>::type::value};
STATIC_CHECK((mpl::has_key<TWindowComponentsTypeIdToTypeMap, mpl::int_<WINDOW_COMPONENT_TYPE> >::value!=0), WINDOW_COMPONENT_TYPE_must_be_at_TWindowComponentsTypeIdToTypeMap);
typedef mpl::at<TWindowComponentsTypeIdToTypeMap, mpl::int_<WINDOW_COMPONENT_TYPE> >::type TRealTypeOfWindowComponent;
this->checkDuplicateComponentTypeID(WINDOW_COMPONENT_TYPE, casterRepository);
struct _
{
static TCastWindowComponentTo* const casterForEachWindowComponent(PegThing* const Window)
{
ASSERT(Window!=NULL);
if(Window==NULL)
return NULL;
TRealTypeOfWindowComponent* const RealTypeComponent = static_cast<TRealTypeOfWindowComponent* const>(Window);
ASSERT(RealTypeComponent!=NULL);
TCastWindowComponentTo* const FinalCastedWindowComponent = static_cast<TCastWindowComponentTo* const >(RealTypeComponent);
ASSERT(FinalCastedWindowComponent!=NULL);
return FinalCastedWindowComponent;
}
};
TCasterForEachWindowComponent CasterForEachWindowComponentFunction=&(_::casterForEachWindowComponent);
this->checkDuplicateType(CasterForEachWindowComponentFunction, casterRepository);
casterRepository[WINDOW_COMPONENT_TYPE]=CasterForEachWindowComponentFunction;
registerVisitedComponentListItem(casterRepository, mpl::next<TCurrentItem>::type(), TEnd());
}
template<class TEnd>
void registerVisitedComponentListItem(TCasterRepository& casterRepository, TEnd CurrentItem, TEnd End)
{}
Код из того же большого проекта.
Ассерты после static_cast и "шаблонная магия" особенно доставляют.
Мне конечно boost::mpl нравиться, но я считаю, что его негоже использовать в реальных проектах.
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