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// -*- C++ -*-
// Copyright (C) 2005 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
// Permission to use, copy, modify, sell, and distribute this software
// is hereby granted without fee, provided that the above copyright
// notice appears in all copies, and that both that copyright notice and
// this permission notice appear in supporting documentation. None of
// the above authors, nor IBM Haifa Research Laboratories, make any
// representation about the suitability of this software for any
// purpose. It is provided "as is" without express or implied warranty.
/**
* @file types_traits.hpp
* Contains a traits class of types used by containers.
*/
#ifndef TYPES_TRAITS_HPP
#define TYPES_TRAITS_HPP
#include <ext/pb_assoc/data_type.hpp>
#include <ext/pb_assoc/detail/type_utils.hpp>
#include <utility>
namespace pb_assoc
{
namespace detail
{
template<typename Data, class Allocator>
struct basic_data_types_traits
{
public:
typedef
typename Allocator::template rebind<
Data>::other::value_type
data_type;
typedef
typename Allocator::template rebind<
Data>::other::pointer
data_pointer;
typedef
typename Allocator::template rebind<
Data>::other::const_pointer
const_data_pointer;
typedef
typename Allocator::template rebind<
Data>::other::reference
data_reference;
typedef
typename Allocator::template rebind<
Data>::other::const_reference
const_data_reference;
};
template<typename Data, class Allocator>
struct data_types_traits : public basic_data_types_traits<
Data,
Allocator>
{
public:
typedef Data given_data_type;
};
#define PB_ASSOC_CLASS_T_DEC \
template<class Allocator>
#define PB_ASSOC_CLASS_C_DEC \
data_types_traits< \
null_data_type, \
Allocator>
template<class Allocator>
struct data_types_traits<
null_data_type,
Allocator> : public basic_data_types_traits<
null_data_type,
Allocator>
{
public:
typedef null_data_type given_data_type;
};
#undef PB_ASSOC_CLASS_T_DEC
#undef PB_ASSOC_CLASS_C_DEC
template<class Cntnr, class Allocator>
struct data_types_traits<
compound_data_type<
Cntnr>,
Allocator> : public basic_data_types_traits<
Cntnr,
Allocator>
{
public:
typedef compound_data_type< Cntnr> given_data_type;
};
#define PB_ASSOC_CLASS_T_DEC \
template<typename Key, typename Data>
#define PB_ASSOC_CLASS_C_DEC \
exception_throw_types_traits< \
Key, \
Data>
template<typename Key, typename Data>
struct exception_throw_types_traits
{
public:
typedef int_to_type<false> no_throw_copies_false_indicator;
typedef int_to_type<true> no_throw_copies_true_indicator;
private:
enum
{
key_no_throw = is_simple_type<Key>::value,
data_no_throw = is_same_type<Data, null_data_type>::value ||
is_simple_type<Data>::value,
no_throw_copies = key_no_throw&& data_no_throw
};
typedef int_to_type<no_throw_copies> no_throw_copies_t;
public:
static no_throw_copies_t s_no_throw_copies_indicator;
};
PB_ASSOC_CLASS_T_DEC
typename PB_ASSOC_CLASS_C_DEC::no_throw_copies_t
PB_ASSOC_CLASS_C_DEC::s_no_throw_copies_indicator;
#undef PB_ASSOC_CLASS_T_DEC
#undef PB_ASSOC_CLASS_C_DEC
template<typename Key, typename Data, class Allocator>
struct value_types_traits
{
public:
typedef
typename Allocator::template rebind<
std::pair<const Key, Data> >::other
value_type_allocator;
typedef typename value_type_allocator::value_type value_type;
typedef typename value_type_allocator::pointer pointer;
typedef typename value_type_allocator::const_pointer const_pointer;
typedef typename value_type_allocator::reference reference;
typedef typename value_type_allocator::const_reference const_reference;
};
template<typename Key, class Allocator>
struct value_types_traits<
Key,
null_data_type,
Allocator>
{
public:
typedef
typename Allocator::template rebind<
Key>::other
value_type_allocator;
typedef typename value_type_allocator::value_type value_type;
typedef typename value_type_allocator::const_pointer pointer;
typedef typename value_type_allocator::const_pointer const_pointer;
typedef typename value_type_allocator::const_reference reference;
typedef typename value_type_allocator::const_reference const_reference;
};
template<typename Key, class Cntnr, class Allocator>
struct value_types_traits<
Key,
compound_data_type<
Cntnr>,
Allocator>
{
private:
typedef
typename Allocator::template rebind<
std::pair<const Key, Cntnr> >::other
value_type_allocator;
public:
typedef typename value_type_allocator::value_type value_type;
typedef typename value_type_allocator::pointer pointer;
typedef typename value_type_allocator::const_pointer const_pointer;
typedef typename value_type_allocator::reference reference;
typedef typename value_type_allocator::const_reference const_reference;
};
template<typename Key, typename Data, class Allocator>
struct types_traits : public data_types_traits<
Data,
Allocator>,
public value_types_traits<
Key,
Data,
Allocator>,
public exception_throw_types_traits<
Key,
Data>
{
public:
typedef typename Allocator::template rebind<Key>::other key_allocator;
typedef typename key_allocator::value_type key_type;
typedef typename key_allocator::pointer key_pointer;
typedef typename key_allocator::const_pointer const_key_pointer;
typedef typename key_allocator::reference key_reference;
typedef typename key_allocator::const_reference const_key_reference;
};
} // namespace detail
} // namespace pb_assoc
#endif // #ifndef TYPES_TRAITS_HPP
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