infer_clone/sledge/nonstdlib/option.mli

(*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *)

open! NS0
include module type of Core.Option

val pp : ('a_pp -> 'a -> unit, unit) fmt -> 'a_pp -> 'a option pp
(** Pretty-print an option. *)

val or_else : f:(unit -> 'a option) -> 'a option -> 'a option
(** [or_else ~f] is [f ()] on [None] and otherwise identity *)

val cons : 'a t -> 'a list -> 'a list

module Monad_syntax : Monad_syntax with type 'a t := 'a option
[sledge] Move Import.Option to separate module Reviewed By: ngorogiannis Differential Revision: D20482757 fbshipit-source-id: 492674549 5 years ago			`(*`
			`* Copyright (c) Facebook, Inc. and its affiliates.`
			`*`
			`* This source code is licensed under the MIT license found in the`
			`* LICENSE file in the root directory of this source tree.`
			`*)`

[sledge] Build: Promote `import` subdirectory to a toplevel `nonstdlib` library Reviewed By: jvillard Differential Revision: D21720977 fbshipit-source-id: 0b9001eea 5 years ago			`open! NS0`
[sledge] Cleanup of Import Summary: Work on the containers revealed that 1b8746d21 was premature, and this diff is in part a revert of that. The objectives for the global namespace are: - self-consistent as much as possible - rich data type operations - does not require maintaining lots of tedious library wrapping code - has Marshalable containers - has containers with functorial interfaces For these aims, it's best to stick with Core. Base isn't enough to define functorial interfaces for collections (without a lot of tedious wrapping code to keep in sync manually), and since a few modules not in Core_kernel are needed anyhow. Reviewed By: ngorogiannis Differential Revision: D20583756 fbshipit-source-id: d939be7d0 5 years ago			`include module type of Core.Option`
[sledge] Move Import.Option to separate module Reviewed By: ngorogiannis Differential Revision: D20482757 fbshipit-source-id: 492674549 5 years ago
			`val pp : ('a_pp -> 'a -> unit, unit) fmt -> 'a_pp -> 'a option pp`
			`(** Pretty-print an option. *)`

[sledge] Add Option.or_else Summary: ``` val or_else : (unit -> 'a option) -> 'a option -> 'a option (** [or_else f] is [f ()] on [None] and otherwise identity *) ``` Reviewed By: jvillard Differential Revision: D20637481 fbshipit-source-id: 72a9d930f 5 years ago			`val or_else : f:(unit -> 'a option) -> 'a option -> 'a option`
			`(** [or_else ~f] is [f ()] on [None] and otherwise identity *)`

[sledge] Move Import.Option to separate module Reviewed By: ngorogiannis Differential Revision: D20482757 fbshipit-source-id: 492674549 5 years ago			`val cons : 'a t -> 'a list -> 'a list`

[sledge] Substitute out alias of option when including Monad_syntax Summary: Otherwise there is an alias `'a t` for `'a option` polluting the global namespace, which causes e.g. merlin to produce confusing types. Reviewed By: jvillard Differential Revision: D20831349 fbshipit-source-id: dff7b4f15 5 years ago			`module Monad_syntax : Monad_syntax with type 'a t := 'a option`