script_set.ml
(*****************************************************************************)
(* *)
(* Open Source License *)
(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com> *)
(* Copyright (c) 2020 Metastate AG <hello@metastate.dev> *)
(* Copyright (c) 2021-2022 Nomadic Labs <contact@nomadic-labs.com> *)
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(*****************************************************************************)
open Script_typed_ir
let make x = Set_tag x
let get (Set_tag x) = x
let empty : type a. a comparable_ty -> a set =
fun ty ->
let module OPS : Boxed_set_OPS with type elt = a = struct
let elt_size = Gas_comparable_input_size.size_of_comparable_value ty
include Set.Make (struct
type t = a
let compare = Script_comparable.compare_comparable ty
end)
end in
Set_tag
(module struct
type elt = a
module OPS = OPS
let boxed = OPS.empty
let size = 0
end)
let update : type a. a -> bool -> a set -> a set =
fun v b (Set_tag (module Box)) ->
Set_tag
(module struct
type elt = a
module OPS = Box.OPS
let boxed =
if b then Box.OPS.add v Box.boxed else Box.OPS.remove v Box.boxed
let size =
let mem = Box.OPS.mem v Box.boxed in
if mem then if b then Box.size else Box.size - 1
else if b then Box.size + 1
else Box.size
end)
let mem : type elt. elt -> elt set -> bool =
fun v (Set_tag (module Box)) -> Box.OPS.mem v Box.boxed
let fold : type elt acc. (elt -> acc -> acc) -> elt set -> acc -> acc =
fun f (Set_tag (module Box)) -> Box.OPS.fold f Box.boxed
let size : type elt. elt set -> Script_int.n Script_int.num =
fun (Set_tag (module Box)) -> Script_int.(abs (of_int Box.size))