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MinaProtocol / mina / 242

04 Jun 2025 08:45PM UTC coverage: 36.779% (-19.8%) from 56.614%
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Merge pull request #17086 from MinaProtocol/dkijania/port_terraform_removal

port terraform removal to develop

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16.67
/src/lib/mina_stdlib/map_set.ml
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(** Utilities for dealing with "multimaps" or mapsets. *)
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open Core_kernel
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(* TODO consider using a lighter interface than Comparable.S *)
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module Make (Key : Comparable.S) (Set : Generic_set.S0) = struct
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  type t = Set.t Key.Map.t [@@deriving equal]
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  (** Remove an element from a mapset. *)
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  let remove_exn : t -> Key.t -> Set.el -> t =
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   fun map k v ->
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    let newset = Map.find_exn map k |> Fn.flip Set.remove v in
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    if Set.is_empty newset then Map.remove map k
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    else Map.set map ~key:k ~data:newset
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  (* Add an element to a mapset. *)
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  let insert : t -> Key.t -> Set.el -> t =
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   fun map k v ->
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    Map.change map k ~f:(fun set_opt ->
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        match set_opt with
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        | None ->
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            Some (Set.singleton v)
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        | Some set ->
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            Some (Set.add set v) )
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end
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module Make_with_sexp_of
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    (Key : Comparable.S) (Set : sig
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      include Generic_set.S0
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      val sexp_of_t : t -> Sexp.t
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    end) =
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struct
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  include Make (Key) (Set)
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  let sexp_of_t = [%sexp_of: Set.t Key.Map.t]
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end
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