src/main.sml

   1 (* HCoop Domtool (http://hcoop.sourceforge.net/)
   2  * Copyright (c) 2006, Adam Chlipala
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  17  *)
  18
  19 (* Main interface *)
  20
  21 structure Main :> MAIN = struct
  22
  23 open Ast Print
  24
  25 val dmy = ErrorMsg.dummyLoc
  26
  27 val tInit = (TAction ((CRoot, dmy),
  28                       StringMap.empty,
  29                       StringMap.empty),
  30              dmy)
  31
  32 fun check fname =
  33     let
  34         val prog = Parse.parse fname
  35     in
  36         if !ErrorMsg.anyErrors then
  37             ()
  38         else
  39             let
  40                 val G' = Tycheck.checkFile Env.empty tInit prog
  41             in
  42                 ()
  43             end
  44     end
  45
  46 fun reduce fname =
  47     let
  48         val prog = Parse.parse fname
  49     in
  50         if !ErrorMsg.anyErrors then
  51             ()
  52         else
  53             let
  54                 val G' = Tycheck.checkFile Env.empty tInit prog
  55             in
  56                 if !ErrorMsg.anyErrors then
  57                     ()
  58                 else
  59                     case prog of
  60                         (_, _, SOME body) =>
  61                         let
  62                             val body' = Reduce.reduceExp G' body
  63                         in
  64                             printd (PD.hovBox (PD.PPS.Rel 0,
  65                                                [PD.string "Result:",
  66                                                 PD.space 1,
  67                                                 p_exp body']))
  68                         end
  69                       | _ => ()
  70             end
  71     end
  72
  73 fun eval fname =
  74     let
  75         val prog = Parse.parse fname
  76     in
  77         if !ErrorMsg.anyErrors then
  78             ()
  79         else
  80             let
  81                 val G' = Tycheck.checkFile Env.empty tInit prog
  82             in
  83                 if !ErrorMsg.anyErrors then
  84                     ()
  85                 else
  86                     case prog of
  87                         (_, _, SOME body) =>
  88                         let
  89                             val body' = Reduce.reduceExp G' body
  90                         in
  91                             if !ErrorMsg.anyErrors then
  92                                 ()
  93                             else
  94                                 Eval.exec StringMap.empty body'
  95                         end
  96                       | _ => ()
  97             end
  98     end
  99
 100 end