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|
// Boost.Bimap
//
// Copyright (c) 2006-2007 Matias Capeletto
//
// Distributed under 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)
/// \file detail/map_view_base.hpp
/// \brief Helper base for the construction of the bimap views types.
#ifndef BOOST_BIMAP_DETAIL_MAP_VIEW_BASE_HPP
#define BOOST_BIMAP_DETAIL_MAP_VIEW_BASE_HPP
#if defined(_MSC_VER) && (_MSC_VER>=1200)
#pragma once
#endif
#include <boost/config.hpp>
#include <stdexcept>
#include <utility>
#include <boost/throw_exception.hpp>
#include <boost/type_traits/is_const.hpp>
#include <boost/mpl/if.hpp>
#include <boost/bimap/relation/support/get_pair_functor.hpp>
#include <boost/bimap/relation/detail/to_mutable_relation_functor.hpp>
#include <boost/bimap/container_adaptor/support/iterator_facade_converters.hpp>
#include <boost/bimap/relation/support/data_extractor.hpp>
#include <boost/bimap/relation/support/opposite_tag.hpp>
#include <boost/bimap/relation/support/pair_type_by.hpp>
//#include <boost/bimap/support/iterator_type_by.hpp>
#include <boost/bimap/support/key_type_by.hpp>
#include <boost/bimap/support/data_type_by.hpp>
#include <boost/bimap/support/value_type_by.hpp>
#include <boost/bimap/detail/modifier_adaptor.hpp>
#include <boost/bimap/detail/debug/static_error.hpp>
#include <boost/bimap/detail/map_view_iterator.hpp>
namespace boost {
namespace bimaps {
namespace detail {
// The next macro can be converted in a metafunctor to gain code robustness.
/*===========================================================================*/
#define BOOST_BIMAP_MAP_VIEW_CONTAINER_ADAPTOR( \
CONTAINER_ADAPTOR, TAG, BIMAP, OTHER_ITER, CONST_OTHER_ITER \
) \
::boost::bimaps::container_adaptor::CONTAINER_ADAPTOR \
< \
BOOST_DEDUCED_TYPENAME BIMAP::core_type:: \
BOOST_NESTED_TEMPLATE index<TAG>::type, \
::boost::bimaps::detail:: map_view_iterator<TAG,BIMAP>, \
::boost::bimaps::detail::const_map_view_iterator<TAG,BIMAP>, \
::boost::bimaps::detail:: OTHER_ITER<TAG,BIMAP>, \
::boost::bimaps::detail::CONST_OTHER_ITER<TAG,BIMAP>, \
::boost::bimaps::container_adaptor::support::iterator_facade_to_base \
< \
::boost::bimaps::detail:: map_view_iterator<TAG,BIMAP>, \
::boost::bimaps::detail::const_map_view_iterator<TAG,BIMAP> \
>, \
::boost::mpl::na, \
::boost::mpl::na, \
::boost::bimaps::relation::detail:: \
pair_to_relation_functor<TAG,BOOST_DEDUCED_TYPENAME BIMAP::relation>, \
::boost::bimaps::relation::support:: \
get_pair_functor<TAG, BOOST_DEDUCED_TYPENAME BIMAP::relation > \
>
/*===========================================================================*/
#if defined(BOOST_MSVC)
/*===========================================================================*/
#define BOOST_BIMAP_MAP_VIEW_BASE_FRIEND(TYPE,TAG,BIMAP) \
typedef ::boost::bimaps::detail::map_view_base< \
TYPE<TAG,BIMAP>,TAG,BIMAP > friend_map_view_base; \
friend class friend_map_view_base;
/*===========================================================================*/
#else
/*===========================================================================*/
#define BOOST_BIMAP_MAP_VIEW_BASE_FRIEND(TYPE,TAG,BIMAP) \
friend class ::boost::bimaps::detail::map_view_base< \
TYPE<TAG,BIMAP>,TAG,BIMAP >;
/*===========================================================================*/
#endif
/// \brief Common base for map views.
template< class Derived, class Tag, class BimapType>
class map_view_base
{
typedef ::boost::bimaps::container_adaptor::support::
iterator_facade_to_base<
::boost::bimaps::detail:: map_view_iterator<Tag,BimapType>,
::boost::bimaps::detail::const_map_view_iterator<Tag,BimapType>
> iterator_to_base_;
typedef ::boost::bimaps::relation::detail::
pair_to_relation_functor<Tag,
BOOST_DEDUCED_TYPENAME BimapType::relation> value_to_base_;
typedef BOOST_DEDUCED_TYPENAME ::boost::bimaps::support::
key_type_by<Tag,BimapType>::type key_type_;
typedef BOOST_DEDUCED_TYPENAME ::boost::bimaps::support::
data_type_by<Tag,BimapType>::type data_type_;
typedef BOOST_DEDUCED_TYPENAME ::boost::bimaps::relation::support::
pair_type_by<Tag,
BOOST_DEDUCED_TYPENAME BimapType::relation>::type value_type_;
typedef
::boost::bimaps::detail::map_view_iterator<Tag,BimapType> iterator_;
public:
bool replace(iterator_ position, const value_type_ & x)
{
return derived().base().replace(
derived().template functor<iterator_to_base_>()(position),
derived().template functor<value_to_base_>()(x)
);
}
template< class CompatibleKey >
bool replace_key(iterator_ position, const CompatibleKey & k)
{
return derived().base().replace(
derived().template functor<iterator_to_base_>()(position),
derived().template functor<value_to_base_>()(
::boost::bimaps::relation::detail::
copy_with_first_replaced(*position,k)
)
);
}
template< class CompatibleData >
bool replace_data(iterator_ position, const CompatibleData & d)
{
return derived().base().replace(
derived().template functor<iterator_to_base_>()(position),
derived().template functor<value_to_base_>()(
::boost::bimaps::relation::detail::
copy_with_second_replaced(*position,d)
)
);
}
/* This function may be provided in the future
template< class Modifier >
bool modify(iterator_ position, Modifier mod)
{
return derived().base().modify(
derived().template functor<iterator_to_base_>()(position),
::boost::bimaps::detail::relation_modifier_adaptor
<
Modifier,
BOOST_DEDUCED_TYPENAME BimapType::relation,
BOOST_DEDUCED_TYPENAME ::boost::bimaps::relation::support::
data_extractor
<
Tag, BOOST_DEDUCED_TYPENAME BimapType::relation
>::type,
BOOST_DEDUCED_TYPENAME ::boost::bimaps::relation::support::
data_extractor
<
BOOST_DEDUCED_TYPENAME ::boost::bimaps::relation::support::
opossite_tag<Tag,BimapType>::type,
BOOST_DEDUCED_TYPENAME BimapType::relation
>::type
>(mod)
);
}
*/
template< class Modifier >
bool modify_key(iterator_ position, Modifier mod)
{
return derived().base().modify_key(
derived().template functor<iterator_to_base_>()(position), mod
);
}
template< class Modifier >
bool modify_data(iterator_ position, Modifier mod)
{
typedef BOOST_DEDUCED_TYPENAME ::boost::bimaps::relation::support::
data_extractor
<
BOOST_DEDUCED_TYPENAME ::boost::bimaps::relation::support::
opossite_tag<Tag,BimapType>::type,
BOOST_DEDUCED_TYPENAME BimapType::relation
>::type data_extractor_;
return derived().base().modify(
derived().template functor<iterator_to_base_>()(position),
// this may be replaced later by
// ::boost::bind( mod, ::boost::bind(data_extractor_(),_1) )
::boost::bimaps::detail::unary_modifier_adaptor
<
Modifier,
BOOST_DEDUCED_TYPENAME BimapType::relation,
data_extractor_
>(mod)
);
}
protected:
typedef map_view_base map_view_base_;
private:
// Curiously Recurring Template interface.
Derived& derived()
{
return *static_cast<Derived*>(this);
}
Derived const& derived() const
{
return *static_cast<Derived const*>(this);
}
};
template< class Derived, class Tag, class BimapType>
class mutable_data_unique_map_view_access
{
typedef BOOST_DEDUCED_TYPENAME ::boost::bimaps::support::
data_type_by<Tag,BimapType>::type data_type_;
public:
template< class CompatibleKey >
data_type_ & at(const CompatibleKey& k)
{
typedef ::boost::bimaps::detail::
map_view_iterator<Tag,BimapType> iterator;
iterator iter = derived().find(k);
if( iter == derived().end() )
{
::boost::throw_exception(
std::out_of_range("bimap<>: invalid key")
);
}
return iter->second;
}
template< class CompatibleKey >
const data_type_ & at(const CompatibleKey& k) const
{
typedef ::boost::bimaps::detail::
const_map_view_iterator<Tag,BimapType> const_iterator;
const_iterator iter = derived().find(k);
if( iter == derived().end() )
{
::boost::throw_exception(
std::out_of_range("bimap<>: invalid key")
);
}
return iter->second;
}
template< class CompatibleKey >
data_type_ & operator[](const CompatibleKey& k)
{
typedef ::boost::bimaps::detail::
map_view_iterator<Tag,BimapType> iterator;
typedef BOOST_DEDUCED_TYPENAME ::boost::bimaps::support::
value_type_by<Tag,BimapType>::type value_type;
iterator iter = derived().find(k);
if( iter == derived().end() )
{
iter = derived().insert( value_type(k,data_type_()) ).first;
}
return iter->second;
}
protected:
typedef mutable_data_unique_map_view_access
mutable_data_unique_map_view_access_;
private:
// Curiously Recurring Template interface.
Derived& derived()
{
return *static_cast<Derived*>(this);
}
Derived const& derived() const
{
return *static_cast<Derived const*>(this);
}
};
template< class Derived, class Tag, class BimapType>
class non_mutable_data_unique_map_view_access
{
typedef BOOST_DEDUCED_TYPENAME ::boost::bimaps::support::
data_type_by<Tag,BimapType>::type data_type_;
public:
template< class CompatibleKey >
const data_type_ & at(const CompatibleKey& k) const
{
typedef ::boost::bimaps::detail::
const_map_view_iterator<Tag,BimapType> const_iterator;
const_iterator iter = derived().find(k);
if( iter == derived().end() )
{
::boost::throw_exception(
std::out_of_range("bimap<>: invalid key")
);
}
return iter->second;
}
template< class CompatibleKey >
data_type_ & operator[](const CompatibleKey&)
{
BOOST_BIMAP_STATIC_ERROR( OPERATOR_BRACKET_IS_NOT_SUPPORTED, (Derived));
}
protected:
typedef non_mutable_data_unique_map_view_access
non_mutable_data_unique_map_view_access_;
private:
// Curiously Recurring Template interface.
Derived& derived()
{
return *static_cast<Derived*>(this);
}
Derived const& derived() const
{
return *static_cast<Derived const*>(this);
}
};
template< class Derived, class Tag, class BimapType>
struct unique_map_view_access
{
private:
typedef BOOST_DEDUCED_TYPENAME ::boost::bimaps::support::
value_type_by<Tag,BimapType>::type value_type;
public:
typedef BOOST_DEDUCED_TYPENAME ::boost::mpl::if_
<
typename ::boost::is_const<
BOOST_DEDUCED_TYPENAME value_type::second_type >::type,
non_mutable_data_unique_map_view_access<Derived,Tag,BimapType>,
mutable_data_unique_map_view_access<Derived,Tag,BimapType>
>::type type;
};
// Map views specialize the following structs to provide to the bimap class
// the extra side typedefs (i.e. left_local_iterator for unordered_maps,
// right_range_type for maps)
template< class MapView >
struct left_map_view_extra_typedefs {};
template< class MapView >
struct right_map_view_extra_typedefs {};
} // namespace detail
// This function is already part of Boost.Lambda.
// They may be moved to Boost.Utility.
template <class T> inline const T& make_const(const T& t) { return t; }
} // namespace bimaps
} // namespace boost
// The following macros avoids code duplication in map views
// Maybe this can be changed in the future using a scheme similar to
// the one used with map_view_base.
/*===========================================================================*/
#define BOOST_BIMAP_MAP_VIEW_RANGE_IMPLEMENTATION(BASE) \
\
typedef std::pair< \
BOOST_DEDUCED_TYPENAME base_::iterator, \
BOOST_DEDUCED_TYPENAME base_::iterator> range_type; \
\
typedef std::pair< \
BOOST_DEDUCED_TYPENAME base_::const_iterator, \
BOOST_DEDUCED_TYPENAME base_::const_iterator> const_range_type; \
\
\
template< class LowerBounder, class UpperBounder> \
range_type range(LowerBounder lower,UpperBounder upper) \
{ \
std::pair< \
\
BOOST_DEDUCED_TYPENAME BASE::base_type::iterator, \
BOOST_DEDUCED_TYPENAME BASE::base_type::iterator \
\
> r( this->base().range(lower,upper) ); \
\
return range_type( \
this->template functor< \
BOOST_DEDUCED_TYPENAME BASE::iterator_from_base \
>() ( r.first ), \
this->template functor< \
BOOST_DEDUCED_TYPENAME BASE::iterator_from_base \
>() ( r.second ) \
); \
} \
\
template< class LowerBounder, class UpperBounder> \
const_range_type range(LowerBounder lower,UpperBounder upper) const \
{ \
std::pair< \
\
BOOST_DEDUCED_TYPENAME BASE::base_type::const_iterator, \
BOOST_DEDUCED_TYPENAME BASE::base_type::const_iterator \
\
> r( this->base().range(lower,upper) ); \
\
return const_range_type( \
this->template functor< \
BOOST_DEDUCED_TYPENAME BASE::iterator_from_base \
>() ( r.first ), \
this->template functor< \
BOOST_DEDUCED_TYPENAME BASE::iterator_from_base \
>() ( r.second ) \
); \
}
/*===========================================================================*/
/*===========================================================================*/
#define BOOST_BIMAP_VIEW_ASSIGN_IMPLEMENTATION(BASE) \
\
template< class InputIterator > \
void assign(InputIterator first,InputIterator last) \
{ \
this->clear(); \
this->insert(this->end(),first,last); \
} \
\
void assign(BOOST_DEDUCED_TYPENAME BASE::size_type n, \
const BOOST_DEDUCED_TYPENAME BASE::value_type& v) \
{ \
this->clear(); \
for(BOOST_DEDUCED_TYPENAME BASE::size_type i = 0 ; i < n ; ++i) \
{ \
this->push_back(v); \
} \
}
/*===========================================================================*/
/*===========================================================================*/
#define BOOST_BIMAP_VIEW_FRONT_BACK_IMPLEMENTATION(BASE) \
\
BOOST_DEDUCED_TYPENAME BASE::reference front() \
{ \
return this->template functor< \
BOOST_DEDUCED_TYPENAME base_::value_from_base>() \
( \
const_cast \
< \
BOOST_DEDUCED_TYPENAME BASE::base_type::value_type & \
\
> ( this->base().front() ) \
); \
} \
\
BOOST_DEDUCED_TYPENAME BASE::reference back() \
{ \
return this->template functor< \
BOOST_DEDUCED_TYPENAME base_::value_from_base>() \
( \
const_cast \
< \
BOOST_DEDUCED_TYPENAME BASE::base_type::value_type & \
\
>( this->base().back() ) \
); \
} \
\
BOOST_DEDUCED_TYPENAME BASE::const_reference front() const \
{ \
return this->template functor< \
BOOST_DEDUCED_TYPENAME BASE::value_from_base>() \
( \
this->base().front() \
); \
} \
\
BOOST_DEDUCED_TYPENAME BASE::const_reference back() const \
{ \
return this->template functor< \
BOOST_DEDUCED_TYPENAME BASE::value_from_base>() \
( \
this->base().back() \
); \
}
/*===========================================================================*/
#endif // BOOST_BIMAP_DETAIL_MAP_VIEW_BASE_HPP
|
