swh:1:snp:61dcfc0dd5674a0e65803e88039c122d9532074e
Tip revision: 36af670068b026f0a90f63b8cf12ef06ef83a7d0 authored by Hugo Heuzard on 14 September 2022, 15:09:09 UTC
Refactoring: small renaming
Refactoring: small renaming
Tip revision: 36af670
uint_option.ml
(*****************************************************************************)
(* *)
(* Open Source License *)
(* Copyright (c) 2020 Nomadic Labs, <contact@nomadic-labs.com> *)
(* *)
(* Permission is hereby granted, free of charge, to any person obtaining a *)
(* copy of this software and associated documentation files (the "Software"),*)
(* to deal in the Software without restriction, including without limitation *)
(* the rights to use, copy, modify, merge, publish, distribute, sublicense, *)
(* and/or sell copies of the Software, and to permit persons to whom the *)
(* Software is furnished to do so, subject to the following conditions: *)
(* *)
(* The above copyright notice and this permission notice shall be included *)
(* in all copies or substantial portions of the Software. *)
(* *)
(* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR*)
(* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *)
(* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *)
(* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER*)
(* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *)
(* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *)
(* DEALINGS IN THE SOFTWARE. *)
(* *)
(*****************************************************************************)
type t = int
let none = -1
let some i =
assert (i >= 0) ;
i
let is_none t = t = none
let is_some t = t <> none
let fold ~none:default ~some t = if t = none then default else some t
let get t =
assert (is_some t) ;
t