(***********************************************************************)
(*                                                                     *)
(*                         Applied Type System                         *)
(*                                                                     *)
(***********************************************************************)

(*
** ATS/Postiats - Unleashing the Potential of Types!
** Copyright (C) 2011-2013 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: gmhwxi AT gmail DOT com
// Start Time: May, 2011
//
(* ****** ****** *)
//
staload
ATSPRE = "./pats_atspre.dats"
//
(* ****** ****** *)

staload ERR = "./pats_error.sats"

(* ****** ****** *)

staload "./pats_trans2.sats"

(* ****** ****** *)
//
vtypedef
trans2errlst_vt = List_vt (trans2err)
//
(* ****** ****** *)

local

val
the_trans2errlst = ref<trans2errlst_vt> (list_vt_nil)

fun
the_trans2errlst_get
(
  // argumentless
) : trans2errlst_vt = let
  val (vbox pf | p) = ref_get_view_ptr (the_trans2errlst)
  val xs = !p
  val () = !p := list_vt_nil ()
in
  xs
end // end of [the_trans2errlst_get]

in (* in-of-local *)

implement
the_trans2errlst_add (x) =
{
  val (vbox pf | p) = ref_get_view_ptr (the_trans2errlst)
  val () = !p := list_vt_cons (x, !p)
} (* end of [the_trans2errlst_add] *)

implement
the_trans2errlst_finalize () =
{
  val xs =
    the_trans2errlst_get ()
  val nxs = list_vt_length (xs)
  val ((*freed*)) = list_vt_free (xs)
// (*
  val () =
  if nxs > 0 then {
    val () =
    fprintf (
      stderr_ref
    , "patsopt(TRANS2): there are [%i] errors in total.\n", @(nxs)
    ) (* end of [fprintf] *)
  } (* end of [if] *) // end of [val]
// *)
  val () =
  if nxs > 0
    then $raise($ERR.PATSOPT_TRANS2_EXN())
  // end of [if]
//
} (* end of [the_trans2errlst_finalize] *)

end // end of [local]

(* ****** ****** *)

(* end of [pats_trans2_error.dats] *)