/usr/lib/ats2-postiats-0.2.9/prelude/DATS/pointer.dats is in ats2-lang 0.2.9-1.
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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/DATS/CODEGEN/pointer.atxt
** Time of generation: Sun Jul 3 11:13:21 2016
*)
(* ****** ****** *)
(* Author: Hongwei Xi *)
(* Authoremail: hwxi AT cs DOT bu DOT edu *)
(* Start time: March, 2012 *)
(* ****** ****** *)
staload UN = "prelude/SATS/unsafe.sats"
(* ****** ****** *)
primplmnt
lemma_ptr_param
{l} (p) = lemma_addr_param {l} ()
// end of [lemma_ptr_param]
(* ****** ****** *)
primplmnt
ptr_get_index {l} (p) = eqaddr_make {l, l} ()
(* ****** ****** *)
implement{a}
ptr0_succ (p) = add_ptr_bsz (p, sizeof<a>)
implement{a}
ptr0_pred (p) = sub_ptr_bsz (p, sizeof<a>)
(* ****** ****** *)
//
implement{a}{tk}
ptr0_add_gint (p, i) =
add_ptr_bsz (p, g0int2uint(i) * sizeof<a>)
implement{a}{tk}
ptr0_sub_gint (p, i) =
sub_ptr_bsz (p, g0int2uint(i) * sizeof<a>)
//
implement{a}{tk}
ptr0_add_guint (p, i) =
add_ptr_bsz (p, g0uint2uint(i) * sizeof<a>)
implement{a}{tk}
ptr0_sub_guint (p, i) =
sub_ptr_bsz (p, g0uint2uint(i) * sizeof<a>)
//
(* ****** ****** *)
//
implement{a}
ptr1_succ {l} (p) =
$UN.cast{ptr(l+sizeof(a))}(ptr0_succ<a> (p))
implement{a}
ptr1_pred {l} (p) =
$UN.cast{ptr(l-sizeof(a))}(ptr0_pred<a> (p))
//
(* ****** ****** *)
//
implement{a}{tk}
ptr1_add_gint {l}{i} (p, i) =
$UN.cast{ptr(l+i*sizeof(a))}(ptr0_add_gint<a><tk> (p, i))
implement{a}{tk}
ptr1_sub_gint {l}{i} (p, i) =
$UN.cast{ptr(l-i*sizeof(a))}(ptr0_sub_gint<a><tk> (p, i))
//
implement{a}{tk}
ptr1_add_guint {l}{i} (p, i) =
$UN.cast{ptr(l+i*sizeof(a))}(ptr0_add_guint<a><tk> (p, i))
implement{a}{tk}
ptr1_sub_guint {l}{i} (p, i) =
$UN.cast{ptr(l-i*sizeof(a))}(ptr0_sub_guint<a><tk> (p, i))
//
(* ****** ****** *)
implement{a} ptr_get (pf | p) = !p
implement{a} ptr_set (pf | p, x) = !p := x
implement{a}
ptr_exch (pf | p, x) =
{
val tmp = x; val () = x := !p; val () = !p := tmp
} // end of [ptr_exch]
(* ****** ****** *)
implement
{a}(*tmp*)
ptr_nullize
(pf | x) =
(
ptr_nullize_tsz{a}(pf | x, sizeof<a>)
) (* ptr_nullize *)
(* ****** ****** *)
implement
{a}(*tmp*)
ptr_alloc () = ptr_alloc_tsz{a}(sizeof<a>)
(* ****** ****** *)
implement
{a}(*tmp*)
aptr_make_elt(x) = let
//
val (pf, fpf | p) = ptr_alloc()
//
in
!p := x; $UN.castvwtp0{aPtr1(a)}((pf, fpf, p))
end // end of [aptr_make_elt]
(* ****** ****** *)
//
implement
{a}(*tmp*)
aptr_getfree_elt
{l}(ap) = x where
{
val p = aptr2ptr(ap)
val x = $UN.ptr1_get<a>(p)
prval
pfat_ = $UN.castview0{(a?)@l}(0)
prval
pfgc_ = $UN.castview0{mfree_gc_v(l)}(0)
val () = ptr_free{a?}{l}(pfgc_, pfat_ | p)
prval () = $UN.cast2void(ap)
} (* end of [aptr_getfree_elt] *)
//
(* ****** ****** *)
//
implement
{a}(*tmp*)
aptr_get_elt(ap) = $UN.ptr1_get<a>(aptr2ptr(ap))
implement
{a}(*tmp*)
aptr_set_elt(ap, x) = $UN.ptr1_set<a>(aptr2ptr(ap), x)
//
(* ****** ****** *)
implement
fprint_val<ptr> (out, p) = fprint_ptr (out, p)
(* ****** ****** *)
(* end of [pointer.dats] *)
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