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42 lines
1.0 KiB
42 lines
1.0 KiB
(*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*)
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open! NS0
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(** Hash tables *)
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include HashTable_intf
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module Make (Key : HashedType) = struct
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include CCHashtbl.Make (Key)
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let create ?(size = 0) () = create size
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let set tbl ~key ~data = replace tbl key data
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let add_multi tbl ~key ~data =
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update tbl ~k:key ~f:(fun _ -> function
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| None -> Some [data] | Some datas -> Some (data :: datas) )
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let find_exn = find
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let find = find_opt
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let find_or_add tbl key ~default =
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let found = ref None in
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update tbl ~k:key ~f:(fun _ -> function
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| None ->
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let v = default () in
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found := Some v ;
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Some v
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| Some v ->
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found := Some v ;
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Some v ) ;
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Option.get_exn !found
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let iteri tbl ~f = iter (fun key data -> f ~key ~data) tbl
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let fold tbl s ~f = fold (fun key data acc -> f ~key ~data acc) tbl s
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end
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