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attachments.h
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Wed, Jul 8, 8:58 AM
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text/x-c++
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Fri, Jul 10, 8:58 AM (1 d, 13 h)
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rXR Xreate
attachments.h
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//
// Created by pgess on 3/15/15.
//
#ifndef _XREATE_ATTACHMENTS_H_
#define _XREATE_ATTACHMENTS_H_
#include <unordered_map>
#include <vector>
#include <assert.h>
#include <type_traits>
namespace xreate
{
//Attachments dictionary
template<class Tag>
struct AttachmentsDict
{
// typedef void Data;
// static const unsigned int key (current unreserved - 9);
//reserved attachments:
// 1 containers::Implementation
// 3 interpretation::InterpretationData
// 5 interpretation::FunctionInterpretationData
// 6 VariableVersion
// 7 Symbol
// 8 versions::VersionImposedDependency
};
template<class Object>
struct AttachmentsId{
//static unsigned int getId(const Object& object);
};
template<class Data>
class IAttachmentsContainer{
protected:
virtual bool __exists(const unsigned int object)=0;
virtual Data& __get(const unsigned int object)=0;
virtual void __put(const unsigned int object, Data data)=0;
public:
template<class Id>
bool exists(const Id& object){
unsigned int id = AttachmentsId<Id>::getId(object);
return __exists(id);
}
template<class Id>
Data& get(const Id& object){
unsigned int id = AttachmentsId<Id>::getId(object);
return __get(id);
}
template<class Id>
Data get(const Id& object, const Data& dataDefault){
unsigned int id = AttachmentsId<Id>::getId(object);
if (! __exists(id)){
return dataDefault;
}
return __get(id);
}
template<class Id>
void put(const Id& object, Data data){
unsigned int id = AttachmentsId<Id>::getId(object);
__put(id, data);
}
virtual ~IAttachmentsContainer(){};
};
template<class Data>
class AttachmentsContainerDefault: public IAttachmentsContainer<Data>{
private:
std::unordered_map<unsigned int, Data> __data;
virtual bool __exists(const unsigned int id){
return __data.count(id);
}
virtual Data& __get(const unsigned int id){
return __data.at(id);
}
virtual void __put(const unsigned int id, Data data){
auto result = __data.emplace(id, data);
assert(result.second);
}
public:
std::unordered_map<unsigned int, Data>& getRawStorage() {
return __data;
}
};
class Attachments{
private:
static std::vector<void*> __storage;
template<class Tag>
using Data = typename AttachmentsDict<Tag>::Data;
public:
template<class Tag, class Id>
static bool exists(const Id& object) {
assert(AttachmentsDict<Tag>::key < __storage.size());
assert(__storage.at(AttachmentsDict<Tag>::key));
IAttachmentsContainer<Data<Tag>>* self = reinterpret_cast<IAttachmentsContainer<Data<Tag>>*>(__storage.at(AttachmentsDict<Tag>::key));
return self->exists<Id>(object);
}
template<class Tag, class Id>
static Data<Tag>& get(const Id& object){
assert(AttachmentsDict<Tag>::key < __storage.size());
assert(__storage.at(AttachmentsDict<Tag>::key));
IAttachmentsContainer<Data<Tag>>* self = reinterpret_cast<IAttachmentsContainer<Data<Tag>>*>(__storage.at(AttachmentsDict<Tag>::key));
return self->get<Id>(object);
}
template<class Tag, class Id>
static Data<Tag> get(const Id& object, const Data<Tag>& dataDefault){
assert(AttachmentsDict<Tag>::key < __storage.size());
assert(__storage.at(AttachmentsDict<Tag>::key));
IAttachmentsContainer<Data<Tag>>* self = reinterpret_cast<IAttachmentsContainer<Data<Tag>>*>(__storage.at(AttachmentsDict<Tag>::key));
return self->get<Id>(object, dataDefault);
}
template<class Tag, class Id>
static void put(const Id& object, Data<Tag> data){
assert(AttachmentsDict<Tag>::key < __storage.size());
assert(__storage.at(AttachmentsDict<Tag>::key));
IAttachmentsContainer<Data<Tag>>* self = reinterpret_cast<IAttachmentsContainer<Data<Tag>>*>(__storage.at(AttachmentsDict<Tag>::key));
self->put<Id>(object, data);
}
template<class Tag>
static void init(){
unsigned int keyStorage = AttachmentsDict<Tag>::key;
if (keyStorage+1 > __storage.size()){
__storage.resize(keyStorage + 1, nullptr);
}
__storage[keyStorage] = new AttachmentsContainerDefault<Data<Tag>>();
}
template<class Tag>
static void init(IAttachmentsContainer<Data<Tag>>* container){
unsigned int keyStorage = AttachmentsDict<Tag>::key;
if (keyStorage+1 > __storage.size()){
__storage.resize(keyStorage + 1, nullptr);
}
__storage[keyStorage] = container;
}
};
}
#endif //_XREATE_ATTACHMENTS_H_
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