mirror of
https://github.com/ecency/ecency-mobile.git
synced 2024-12-22 04:41:43 +03:00
100 lines
2.9 KiB
C++
100 lines
2.9 KiB
C++
#ifndef BOOST_ARCHIVE_DETAIL_HELPER_COLLECTION_HPP
|
|
#define BOOST_ARCHIVE_DETAIL_HELPER_COLLECTION_HPP
|
|
|
|
// MS compatible compilers support #pragma once
|
|
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
|
# pragma once
|
|
#endif
|
|
|
|
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
|
|
// helper_collection.hpp: archive support for run-time helpers
|
|
|
|
// (C) Copyright 2002-2008 Robert Ramey and Joaquin M Lopez Munoz
|
|
// Use, modification and distribution is subject to the Boost Software
|
|
// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
|
|
// http://www.boost.org/LICENSE_1_0.txt)
|
|
|
|
// See http://www.boost.org for updates, documentation, and revision history.
|
|
|
|
#include <cstddef> // NULL
|
|
#include <vector>
|
|
#include <utility>
|
|
#include <memory>
|
|
#include <algorithm>
|
|
|
|
#include <boost/config.hpp>
|
|
|
|
#include <boost/smart_ptr/shared_ptr.hpp>
|
|
#include <boost/smart_ptr/make_shared.hpp>
|
|
|
|
namespace boost {
|
|
|
|
namespace archive {
|
|
namespace detail {
|
|
|
|
class helper_collection
|
|
{
|
|
helper_collection(const helper_collection&); // non-copyable
|
|
helper_collection& operator = (const helper_collection&); // non-copyable
|
|
|
|
// note: we dont' actually "share" the function object pointer
|
|
// we only use shared_ptr to make sure that it get's deleted
|
|
|
|
typedef std::pair<
|
|
const void *,
|
|
boost::shared_ptr<void>
|
|
> helper_value_type;
|
|
template<class T>
|
|
boost::shared_ptr<void> make_helper_ptr(){
|
|
// use boost::shared_ptr rather than std::shared_ptr to maintain
|
|
// c++03 compatibility
|
|
return boost::make_shared<T>();
|
|
}
|
|
|
|
typedef std::vector<helper_value_type> collection;
|
|
collection m_collection;
|
|
|
|
struct predicate {
|
|
BOOST_DELETED_FUNCTION(predicate & operator=(const predicate & rhs))
|
|
public:
|
|
const void * const m_ti;
|
|
bool operator()(helper_value_type const &rhs) const {
|
|
return m_ti == rhs.first;
|
|
}
|
|
predicate(const void * ti) :
|
|
m_ti(ti)
|
|
{}
|
|
};
|
|
protected:
|
|
helper_collection(){}
|
|
~helper_collection(){}
|
|
public:
|
|
template<typename Helper>
|
|
Helper& find_helper(void * const id = 0) {
|
|
collection::const_iterator it =
|
|
std::find_if(
|
|
m_collection.begin(),
|
|
m_collection.end(),
|
|
predicate(id)
|
|
);
|
|
|
|
void * rval = 0;
|
|
if(it == m_collection.end()){
|
|
m_collection.push_back(
|
|
std::make_pair(id, make_helper_ptr<Helper>())
|
|
);
|
|
rval = m_collection.back().second.get();
|
|
}
|
|
else{
|
|
rval = it->second.get();
|
|
}
|
|
return *static_cast<Helper *>(rval);
|
|
}
|
|
};
|
|
|
|
} // namespace detail
|
|
} // namespace serialization
|
|
} // namespace boost
|
|
|
|
#endif // BOOST_ARCHIVE_DETAIL_HELPER_COLLECTION_HPP
|