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57 lines
1.8 KiB
57 lines
1.8 KiB
5 years ago
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(*
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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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(** IArray - Immutable view of an array
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Note that an iarray can be constructed from an array without copying,
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and the client might keep other references to the backing array and use
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them to later modify it. So IArray is not a safe immutable data
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structure, it only attempts to make it inconvenient to unintentionally
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mutate. *)
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open Import0
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include
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module type of Array.Permissioned
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with type ('a, 'p) t := ('a, 'p) Array.Permissioned.t
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type 'a t = ('a, immutable) Array.Permissioned.t
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[@@deriving compare, equal, hash, sexp]
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module Import : sig
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type 'a iarray = 'a t [@@deriving compare, equal, hash, sexp]
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end
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val pp : (unit, unit) fmt -> 'a pp -> 'a t pp
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val empty : 'a t
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val of_ : 'a -> 'a t
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val of_array : 'a array -> 'a t
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(** [of_array a] is an iarray that shares its representation with array [a],
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therefore mutating [a] changes [of_array a]. The intended use for
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[of_array] is for converting an array to an iarray when the array will
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not be used after conversion, or with care for multi-step initialization
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of an iarray. *)
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val contains_dup : compare:('a -> 'a -> int) -> 'a t -> bool
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val fold_map :
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'a t -> init:'accum -> f:('accum -> 'a -> 'accum * 'b) -> 'accum * 'b t
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val fold_map_until :
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'a t
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-> init:'accum
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-> f:('accum -> 'a -> ('accum * 'b, 'final) Continue_or_stop.t)
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-> finish:('accum * 'b t -> 'final)
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-> 'final
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val map_preserving_phys_equal : 'a t -> f:('a -> 'a) -> 'a t
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(** Like map, but preserves [phys_equal] if [f] preserves [phys_equal] of
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every element. *)
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val combine_adjacent : f:('a -> 'a -> 'a option) -> 'a t -> 'a t
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