node_hash_multimap.h

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#pragma once
 
#include "di/container/allocator/allocator.h"
#include "di/container/allocator/fallible_allocator.h"
#include "di/container/allocator/infallible_allocator.h"
#include "di/container/associative/map_interface.h"
#include "di/container/concepts/prelude.h"
#include "di/container/hash/default_hasher.h"
#include "di/container/hash/node/node_hash_map.h"
#include "di/container/hash/node/owning_node_hash_table.h"
#include "di/container/intrusive/forward_list_forward_declaration.h"
#include "di/container/vector/vector.h"
#include "di/container/view/transform.h"
#include "di/function/compare.h"
#include "di/function/equal.h"
#include "di/platform/prelude.h"
#include "di/util/deduce_create.h"
#include "di/vocab/optional/prelude.h"
 
namespace di::container {
template<typename Key, typename Value, typename Eq = function::Equal, concepts::Hasher Hasher = DefaultHasher,
         typename Buckets = container::Vector<
             IntrusiveForwardList<HashNode<detail::NodeHashMapTag<Key, Value>>, detail::NodeHashMapTag<Key, Value>>>,
         concepts::Allocator Alloc = platform::DefaultAllocator>
class NodeHashMultiMap
    : public OwningNodeHashTable<
          Tuple<Key, Value>, Eq, Hasher, Buckets, detail::NodeHashMapTag<Key, Value>, Alloc,
          MapInterface<
              NodeHashMultiMap<Key, Value, Eq, Hasher, Buckets, Alloc>, Tuple<Key, Value>, Key, Value,
              HashNodeIterator<Tuple<Key, Value>, detail::NodeHashMapTag<Key, Value>>,
              container::ConstIteratorImpl<HashNodeIterator<Tuple<Key, Value>, detail::NodeHashMapTag<Key, Value>>>,
              detail::NodeHashTableMapValidForLookup<Key, Value, Eq>::template Type, true>,
          true, true> {
private:
    using Base = OwningNodeHashTable<
        Tuple<Key, Value>, Eq, Hasher, Buckets, detail::NodeHashMapTag<Key, Value>, Alloc,
        MapInterface<
            NodeHashMultiMap<Key, Value, Eq, Hasher, Buckets, Alloc>, Tuple<Key, Value>, Key, Value,
            HashNodeIterator<Tuple<Key, Value>, detail::NodeHashMapTag<Key, Value>>,
            container::ConstIteratorImpl<HashNodeIterator<Tuple<Key, Value>, detail::NodeHashMapTag<Key, Value>>>,
            detail::NodeHashTableMapValidForLookup<Key, Value, Eq>::template Type, true>,
        true, true>;
 
public:
    NodeHashMultiMap() = default;
 
    NodeHashMultiMap(Eq, Hasher, Buckets const& comparator) : Base(Eq { comparator }) {}
};
 
template<concepts::InputContainer Con, concepts::TupleLike T = meta::ContainerValue<Con>>
requires(meta::TupleSize<T> == 2)
auto tag_invoke(types::Tag<util::deduce_create>, InPlaceTemplate<NodeHashMultiMap>, Con&&)
    -> NodeHashMultiMap<meta::TupleElement<T, 0>, meta::TupleElement<T, 1>>;
 
template<concepts::InputContainer Con, concepts::TupleLike T = meta::ContainerValue<Con>, typename Eq>
requires(meta::TupleSize<T> == 2)
auto tag_invoke(types::Tag<util::deduce_create>, InPlaceTemplate<NodeHashMultiMap>, Con&&, Eq)
    -> NodeHashMultiMap<meta::TupleElement<T, 0>, meta::TupleElement<T, 1>, Eq>;
 
template<concepts::InputContainer Con, concepts::TupleLike T = meta::ContainerValue<Con>, typename Eq, typename Hasher>
requires(meta::TupleSize<T> == 2)
auto tag_invoke(types::Tag<util::deduce_create>, InPlaceTemplate<NodeHashMultiMap>, Con&&, Eq, Hasher)
    -> NodeHashMultiMap<meta::TupleElement<T, 0>, meta::TupleElement<T, 1>, Eq, Hasher>;
}
 
namespace di {
using container::NodeHashMultiMap;
}