/usr/lib/ats2-postiats-0.2.6/prelude/SATS/stream_vt.sats 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) 2010-2015 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.
*)
(* ****** ****** *)
(*
** Source:
** $PATSHOME/prelude/SATS/CODEGEN/stream_vt.atxt
** Time of generation: Fri Oct 23 21:36:28 2015
*)
(* ****** ****** *)
sortdef t0p = t@ype and vt0p = vt@ype
(* ****** ****** *)
//
// HX: lazy linear streams
//
datavtype
stream_vt_con
(a:vt@ype+) =
| stream_vt_nil of ((*void*))
| stream_vt_cons of (a, stream_vt(a))
//
where
stream_vt(a:vt@ype) = lazy_vt(stream_vt_con(a))
//
(* ****** ****** *)
vtypedef
streamopt_vt (a:vt0p) = Option_vt(stream_vt(a))
(* ****** ****** *)
//
// HX-2014-04-07:
// this is a regular function
// instead of a cast function
//
fun{a:t0p}
stream_vt2t
(xs: stream_vt (INV(a))): stream (a)
//
(* ****** ****** *)
fun{a:vt0p}
stream2list_vt
(xs: stream_vt (INV(a))): List0_vt (a)
// end of [stream2list_vt]
(* ****** ****** *)
fun{a:t0p}
stream_vt_free (xs: stream_vt a):<!wrt> void
(* ****** ****** *)
//
fun{a:t0p}
stream_vt_drop_exn
(xs: stream_vt(INV(a)), n: intGte(0)): stream_vt(a)
// end of [stream_vt_drop_exn]
//
fun{a:t0p}
stream_vt_drop_opt
(xs: stream_vt(INV(a)), n: intGte(0)): streamopt_vt(a)
// end of [stream_vt_drop_opt]
//
(* ****** ****** *)
//
fun{a:t0p}
stream_vt_head
(xs: stream_vt(INV(a))):<!exnwrt> (a)
fun{a:t0p}
stream_vt_tail
(xs: stream_vt(INV(a))):<!exnwrt> stream_vt(a)
//
fun{a:vt0p}
stream_vt_uncons
(xs: &stream_vt(INV(a)) >> stream_vt(a)):<!exnwrt> (a)
//
(* ****** ****** *)
fun{
a:vt0p}{env:vt0p
} stream_vt_foreach$fwork
(x: &a >> a?!, env: &env >> _): void // lin-cleared
fun{a:vt0p}
stream_vt_foreach (xs: stream_vt (INV(a))): void
fun{
a:vt0p}{env:vt0p
} stream_vt_foreach_env (xs: stream_vt (INV(a)), &env >> _): void
(* ****** ****** *)
//
fun{a:vt0p}
stream_vt_filter$pred (x: &a):<> bool
//
fun{a:t0p}
stream_vt_filter (xs: stream_vt (INV(a))): stream_vt (a)
//
fun{a:t0p}
stream_vt_filter_fun
(
xs: stream_vt (INV(a)), pred: (&a) -<fun> bool
) : stream_vt (a) // end of [stream_vt_filter_fun]
fun{a:t0p}
stream_vt_filter_cloptr
(
xs: stream_vt (INV(a)), pred: (&a) -<cloptr> bool
) : stream_vt (a) // end of [stream_vt_filter_cloptr]
//
fun{a:vt0p}
stream_vt_filterlin$clear (x: &a >> a?):<!wrt> void
fun{a:vt0p}
stream_vt_filterlin (xs: stream_vt (INV(a))): stream_vt (a)
//
(* ****** ****** *)
//
fun{
a:vt0p}{b:vt0p
} stream_vt_map$fopr (x: &a >> a?!): b // lin-cleared
fun{
a:vt0p}{b:vt0p
} stream_vt_map (xs: stream_vt (INV(a))): stream_vt (b)
//
fun{
a:vt0p}{b:vt0p
} stream_vt_map_fun
(xs: stream_vt (INV(a)), f: (&a >> a?!) -<fun> b): stream_vt (b)
fun{
a:vt0p}{b:vt0p
} stream_vt_map_cloptr
(xs: stream_vt (INV(a)), f: (&a >> a?!) -<cloptr> b): stream_vt (b)
//
(* ****** ****** *)
//
fun{
a1,a2:t0p}{b:vt0p
} stream_vt_map2$fopr
(x1: &a1 >> _, x2: &a2 >> _): b
fun{
a1,a2:t0p}{b:vt0p
} stream_vt_map2 (
xs1: stream_vt (INV(a1))
, xs2: stream_vt (INV(a2))
) : stream_vt (b) // end of [stream_vt_map2]
//
fun{
a1,a2:t0p}{b:vt0p
} stream_vt_map2_fun
(
xs1: stream_vt (INV(a1))
, xs2: stream_vt (INV(a2))
, f: (&a1 >> _, &a2 >> _) -<fun> b
) : stream_vt (b) // end of [stream_vt_map2_fun]
fun{
a1,a2:t0p}{b:vt0p
} stream_vt_map2_cloptr
(
xs1: stream_vt (INV(a1))
, xs2: stream_vt (INV(a2))
, f: (&a1 >> _, &a2 >> _) -<cloptr> b
) : stream_vt (b) // end of [stream_vt_map2_cloptr]
//
(* ****** ****** *)
fun{a:vt0p}
stream_vt_tabulate (): stream_vt (a)
fun{a:vt0p}
stream_vt_tabulate$fopr (i: intGte(0)): (a)
(* ****** ****** *)
//
absvtype
streamer_vtype (a:vt@ype+) = ptr
//
vtypedef
streamer_vt (a:vt0p) = streamer_vtype (a)
//
(* ****** ****** *)
//
fun{}
streamer_vt_make
{a:vt0p} (stream_vt(INV(a))): streamer_vt(a)
//
fun{}
streamer_vt_free{a:vt0p} (streamer_vt(INV(a))): void
//
fun{
a:vt@ype
} streamer_vt_eval_exn (xser: !streamer_vt(INV(a))): (a)
//
(* ****** ****** *)
//
// overloading for certain symbols
//
(* ****** ****** *)
(* ****** ****** *)
overload ~ with streamer_vt_free
(* ****** ****** *)
overload [] with streamer_vt_eval_exn
(* ****** ****** *)
overload .head with stream_vt_head
overload .tail with stream_vt_tail
(* ****** ****** *)
(* end of [stream_vt.sats] *)
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