/usr/lib/ats-anairiats-0.2.11/prelude/SATS/reference.sats is in ats-lang-anairiats 0.2.11-1.
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 *)
(* *)
(* Hongwei Xi *)
(* *)
(***********************************************************************)
(*
** ATS - Unleashing the Potential of Types!
** Copyright (C) 2002-2008 Hongwei Xi, Boston University
** All rights reserved
**
** ATS is free software; you can redistribute it and/or modify it under
** the terms of the GNU LESSER GENERAL PUBLIC LICENSE as published by the
** Free Software Foundation; either version 2.1, 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 (hwxi AT cs DOT bu DOT edu) *)
(* ****** ****** *)
// some common functions on references
(* ****** ****** *)
#include "prelude/params.hats"
(* ****** ****** *)
#if VERBOSE_PRELUDE #then
#print "Loading [reference.sats] starts!\n"
#endif // end of [VERBOSE_PRELUDE]
(* ****** ****** *)
//
// HX: implemented in [prelude/CATS/reference.cats]
//
fun ref_make_elt_tsz
{a:viewt@ype} (x: &a >> a?, tsz: sizeof_t a):<> ref a
= "atspre_ref_make_elt_tsz"
// end of [ref_make_elt_tsz]
//
// HX:
// [ref] and [ref_make_elt] are the same
// implemented in [prelude/DATS/reference.dats]
//
fun{a:viewt@ype} ref (x: a):<> ref a
fun{a:viewt@ype} ref_make_elt (x: a):<> ref a
//
// HX:
// this is really an identity function; it is
// implemented in [prelude/CATS/reference.cats]
fun ref_make_view_ptr
{a:viewt@ype} {l:addr} (pf: a @ l | p: ptr l):<> ref a
= "atspre_ref_make_view_ptr"
// end of [ref_make_view_ptr]
//
// HX: implemented in [prelude/CATS/reference.cats]
//
fun ref_void_make ():<> ref void = "atspre_ref_void_make"
(* ****** ****** *)
//
// HX: Operationally, it is the same as [ref_make_view_ptr]
//
fun refconst_make_view_ptr
{a:t@ype} {l:addr} (pf: a @ l | p: ptr l):<> refconst a
= "atspre_ref_make_view_ptr"
// end of [refconst_make_view_ptr]
(* ****** ****** *)
//
// HX: implemented in [prelude/DATS/reference.dats]
//
fun{a:t@ype}
ref_get_elt (r: ref a):<!ref> a = "atspre_ref_get_elt"
//
// HX: implemented in [prelude/DATS/reference.dats]
//
fun{a:t@ype}
ref_set_elt (r: ref a, x: a):<!ref> void = "atspre_ref_set_elt"
(* ****** ****** *)
//
// Operationally, it is the same as [ref_get_elt]
//
fun{a:t@ype} refconst_get_elt (r: refconst a):<> a
(* ****** ****** *)
//
// HX: implemented in [prelude/CATS/reference.cats]
//
castfn ref_get_ptr
{a:viewt@ype} (r: ref a):<> [l:agz] ptr (l)
castfn ref_get_view_ptr
{a:viewt@ype} (r: ref a):<> [l:agz] (vbox (a @ l) | ptr l)
= "atspre_ref_get_view_ptr"
// end of [ref_get_view_ptr]
(* ****** ****** *)
//
// HX: implemented in [prelude/DATS/reference.dats]
//
fun{a:viewt@ype} ref_swap (r: ref a, x: &a):<!ref> void
//
// HX: implemented in [prelude/DATS/reference.dats]
//
fun ref_app_fun
{a:viewt@ype}
(r: ref a, f: (&a) -<0> void):<!ref> void
// end of [ref_app_fun]
(*
macdef ++r = let val x = !r + 1 in r := x; x end
macdef r++ = let val x = !r in r := x + 1; x end
macdef --r = let val x = !r - 1 in r := x; x end
macdef r-- = let val x = !r in r := x - 1; x end
*)
(* ****** ****** *)
(*
//
// HX: should this be added?
//
// extval (ats_ptr_type, "0")
val refopt_none: {a:viewt@ype} refopt (a, false)
= "atspre_refopt_none"
fun refopt_some {a:viewt@ype} (r: ref a): refopt (a, true)
fun refopt_is_some {a:viewt@ype}
{b:bool} (r: refopt (a, b)): bool (b)
fun refopt_is_none {a:viewt@ype}
{b:bool} (r: refopt (a, b)): bool (~b)
*)
(* ****** ****** *)
#if VERBOSE_PRELUDE #then
#print "Loading [reference.sats] finishes!\n"
#endif // end of [VERBOSE_PRELUDE]
(* end of [reference.sats] *)
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