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Refactor type policies used by containers into their own dedicated headers

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Christian Mazakas committed 2023-06-15 22:15:57 -07:00
1 parent bc8996559b
commit e8ec858313
9 files changed
+356 -330
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include/boost/unordered/detail/foa/flat_map_types.hpp
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// Copyright (C) 2023 Christian Mazakas
// 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)
#ifndef BOOST_UNORDERED_DETAIL_FOA_FLAT_MAP_TYPES_HPP
#define BOOST_UNORDERED_DETAIL_FOA_FLAT_MAP_TYPES_HPP
#include <boost/core/allocator_access.hpp>
namespace boost {
namespace unordered {
namespace detail {
namespace foa {
template <class Key, class T> struct flat_map_types
{
using key_type = Key;
using raw_key_type = typename std::remove_const<Key>::type;
using raw_mapped_type = typename std::remove_const<T>::type;
using init_type = std::pair<raw_key_type, raw_mapped_type>;
using moved_type = std::pair<raw_key_type&&, raw_mapped_type&&>;
using value_type = std::pair<Key const, T>;
using element_type = value_type;
static value_type& value_from(element_type& x) { return x; }
template <class K, class V>
static raw_key_type const& extract(std::pair<K, V> const& kv)
{
return kv.first;
}
static moved_type move(init_type& x)
{
return {std::move(x.first), std::move(x.second)};
}
static moved_type move(element_type& x)
{
// TODO: we probably need to launder here
return {std::move(const_cast<raw_key_type&>(x.first)),
std::move(const_cast<raw_mapped_type&>(x.second))};
}
template <class A, class... Args>
static void construct(A& al, init_type* p, Args&&... args)
{
boost::allocator_construct(al, p, std::forward<Args>(args)...);
}
template <class A, class... Args>
static void construct(A& al, value_type* p, Args&&... args)
{
boost::allocator_construct(al, p, std::forward<Args>(args)...);
}
template <class A> static void destroy(A& al, init_type* p) noexcept
{
boost::allocator_destroy(al, p);
}
template <class A> static void destroy(A& al, value_type* p) noexcept
{
boost::allocator_destroy(al, p);
}
};
} // namespace foa
} // namespace detail
} // namespace unordered
} // namespace boost
#endif // BOOST_UNORDERED_DETAIL_FOA_FLAT_MAP_TYPES_HPP
include/boost/unordered/detail/foa/flat_set_types.hpp
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// Copyright (C) 2023 Christian Mazakas
// 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)
#ifndef BOOST_UNORDERED_DETAIL_FOA_FLAT_SET_TYPES_HPP
#define BOOST_UNORDERED_DETAIL_FOA_FLAT_SET_TYPES_HPP
#include <boost/core/allocator_access.hpp>
namespace boost {
namespace unordered {
namespace detail {
namespace foa {
template <class Key> struct flat_set_types
{
using key_type = Key;
using init_type = Key;
using value_type = Key;
static Key const& extract(value_type const& key) { return key; }
using element_type = value_type;
static Key& value_from(element_type& x) { return x; }
static element_type&& move(element_type& x) { return std::move(x); }
template <class A, class... Args>
static void construct(A& al, value_type* p, Args&&... args)
{
boost::allocator_construct(al, p, std::forward<Args>(args)...);
}
template <class A> static void destroy(A& al, value_type* p) noexcept
{
boost::allocator_destroy(al, p);
}
};
} // namespace foa
} // namespace detail
} // namespace unordered
} // namespace boost
#endif // BOOST_UNORDERED_DETAIL_FOA_FLAT_SET_TYPES_HPP
include/boost/unordered/detail/foa/node_map_types.hpp
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// Copyright (C) 2023 Christian Mazakas
// 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)
#ifndef BOOST_UNORDERED_DETAIL_FOA_NODE_MAP_TYPES_HPP
#define BOOST_UNORDERED_DETAIL_FOA_NODE_MAP_TYPES_HPP
#include <boost/core/allocator_access.hpp>
#include <boost/core/pointer_traits.hpp>
namespace boost {
namespace unordered {
namespace detail {
namespace foa {
template <class Key, class T> struct node_map_types
{
using key_type = Key;
using mapped_type = T;
using raw_key_type = typename std::remove_const<Key>::type;
using raw_mapped_type = typename std::remove_const<T>::type;
using init_type = std::pair<raw_key_type, raw_mapped_type>;
using value_type = std::pair<Key const, T>;
using moved_type = std::pair<raw_key_type&&, raw_mapped_type&&>;
using element_type = foa::element_type<value_type>;
static value_type& value_from(element_type const& x)
{
return *(x.p);
}
template <class K, class V>
static raw_key_type const& extract(std::pair<K, V> const& kv)
{
return kv.first;
}
static raw_key_type const& extract(element_type const& kv)
{
return kv.p->first;
}
static element_type&& move(element_type& x) { return std::move(x); }
static moved_type move(init_type& x)
{
return {std::move(x.first), std::move(x.second)};
}
static moved_type move(value_type& x)
{
return {std::move(const_cast<raw_key_type&>(x.first)),
std::move(const_cast<raw_mapped_type&>(x.second))};
}
template <class A>
static void construct(A&, element_type* p, element_type&& x) noexcept
{
p->p = x.p;
x.p = nullptr;
}
template <class A>
static void construct(
A& al, element_type* p, element_type const& copy)
{
construct(al, p, *copy.p);
}
template <class A, class... Args>
static void construct(A& al, init_type* p, Args&&... args)
{
boost::allocator_construct(al, p, std::forward<Args>(args)...);
}
template <class A, class... Args>
static void construct(A& al, value_type* p, Args&&... args)
{
boost::allocator_construct(al, p, std::forward<Args>(args)...);
}
template <class A, class... Args>
static void construct(A& al, element_type* p, Args&&... args)
{
p->p = boost::to_address(boost::allocator_allocate(al, 1));
BOOST_TRY
{
boost::allocator_construct(al, p->p, std::forward<Args>(args)...);
}
BOOST_CATCH(...)
{
using pointer_type = typename boost::allocator_pointer<A>::type;
using pointer_traits = boost::pointer_traits<pointer_type>;
boost::allocator_deallocate(
al, pointer_traits::pointer_to(*(p->p)), 1);
BOOST_RETHROW
}
BOOST_CATCH_END
}
template <class A> static void destroy(A& al, value_type* p) noexcept
{
boost::allocator_destroy(al, p);
}
template <class A> static void destroy(A& al, init_type* p) noexcept
{
boost::allocator_destroy(al, p);
}
template <class A>
static void destroy(A& al, element_type* p) noexcept
{
if (p->p) {
using pointer_type = typename boost::allocator_pointer<A>::type;
using pointer_traits = boost::pointer_traits<pointer_type>;
destroy(al, p->p);
boost::allocator_deallocate(
al, pointer_traits::pointer_to(*(p->p)), 1);
}
}
};
} // namespace foa
} // namespace detail
} // namespace unordered
} // namespace boost
#endif // BOOST_UNORDERED_DETAIL_FOA_NODE_MAP_TYPES_HPP
include/boost/unordered/detail/foa/node_set_types.hpp
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// Copyright (C) 2023 Christian Mazakas
// 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)
#ifndef BOOST_UNORDERED_DETAIL_FOA_NODE_SET_TYPES_HPP
#define BOOST_UNORDERED_DETAIL_FOA_NODE_SET_TYPES_HPP
#include <boost/core/allocator_access.hpp>
#include <boost/core/pointer_traits.hpp>
namespace boost {
namespace unordered {
namespace detail {
namespace foa {
template <class Key> struct node_set_types
{
using key_type = Key;
using init_type = Key;
using value_type = Key;
static Key const& extract(value_type const& key) { return key; }
using element_type = foa::element_type<value_type>;
static value_type& value_from(element_type const& x) { return *x.p; }
static Key const& extract(element_type const& k) { return *k.p; }
static element_type&& move(element_type& x) { return std::move(x); }
static value_type&& move(value_type& x) { return std::move(x); }
template <class A>
static void construct(
A& al, element_type* p, element_type const& copy)
{
construct(al, p, *copy.p);
}
template <typename Allocator>
static void construct(
Allocator&, element_type* p, element_type&& x) noexcept
{
p->p = x.p;
x.p = nullptr;
}
template <class A, class... Args>
static void construct(A& al, value_type* p, Args&&... args)
{
boost::allocator_construct(al, p, std::forward<Args>(args)...);
}
template <class A, class... Args>
static void construct(A& al, element_type* p, Args&&... args)
{
p->p = boost::to_address(boost::allocator_allocate(al, 1));
BOOST_TRY
{
boost::allocator_construct(al, p->p, std::forward<Args>(args)...);
}
BOOST_CATCH(...)
{
boost::allocator_deallocate(al,
boost::pointer_traits<typename boost::allocator_pointer<
A>::type>::pointer_to(*p->p),
1);
BOOST_RETHROW
}
BOOST_CATCH_END
}
template <class A> static void destroy(A& al, value_type* p) noexcept
{
boost::allocator_destroy(al, p);
}
template <class A>
static void destroy(A& al, element_type* p) noexcept
{
if (p->p) {
destroy(al, p->p);
boost::allocator_deallocate(al,
boost::pointer_traits<typename boost::allocator_pointer<
A>::type>::pointer_to(*(p->p)),
1);
}
}
};
} // namespace foa
} // namespace detail
} // namespace unordered
} // namespace boost
#endif // BOOST_UNORDERED_DETAIL_FOA_NODE_SET_TYPES_HPP