/usr/lib/ats2-postiats-0.2.6/libats/ML/DATS/option0.dats is in ats2-lang 0.2.6-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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(* *)
(* Applied Type System *)
(* *)
(***********************************************************************)
(*
** ATS/Postiats - Unleashing the Potential of Types!
** Copyright (C) 2010-2013 Hongwei Xi, ATS Trustful Software, Inc.
** All rights reserved
**
** ATS is free software; you can redistribute it and/or modify it under
** the terms of the GNU GENERAL PUBLIC LICENSE (GPL) as published by the
** Free Software Foundation; either version 3, or (at your option) any
** later version.
**
** ATS is distributed in the hope that it will be useful, but WITHOUT ANY
** WARRANTY; without even the implied warranty of MERCHANTABILITY or
** FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
** for more details.
**
** You should have received a copy of the GNU General Public License
** along with ATS; see the file COPYING. If not, please write to the
** Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
** 02110-1301, USA.
*)
(* ****** ****** *)
(* Author: Hongwei Xi *)
(* Authoremail: gmhwxiATgmailDOTcom *)
(* Start time: July, 2012 *)
(* ****** ****** *)
staload
UN = "prelude/SATS/unsafe.sats"
(* ****** ****** *)
staload "libats/ML/SATS/basis.sats"
staload "libats/ML/SATS/option0.sats"
(* ****** ****** *)
implement
{a}(*tmp*)
option0_some (x) = Some0{a}(x)
implement{
} option0_none ((*void*)) = None0((*void*))
(* ****** ****** *)
implement{}
option0_is_some (opt) =
case+ opt of Some0 _ => true | None0 _ => false
// end of [option0_is_some]
implement{}
option0_is_none (opt) =
case+ opt of Some0 _ => false | None0 _ => true
// end of [option0_is_none]
(* ****** ****** *)
implement{a}
option0_unsome_exn (opt) =
case+ opt of
| Some0 (x) => x | None0 ( ) => $raise NotSomeExn()
// end of [option0_unsome_exn]
(* ****** ****** *)
implement{a}
fprint_option0
(out, opt) = fprint_option (out, g1ofg0_option(opt))
// end of [fprint_option0]
(* ****** ****** *)
implement
{a}{b}
option0_map (opt, f) =
(
case+ opt of
| Some0 (x) => Some0{b}(f(x)) | None0 () => None0 ()
) (* end of [option0_map] *)
(* ****** ****** *)
(* end of [option0.dats] *)
|