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234b917a AC |
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. | |
dac62e84 | 17 | *) |
234b917a AC |
18 | |
19 | (* Main interface *) | |
20 | ||
21 | structure Main :> MAIN = struct | |
22 | ||
492c1cff | 23 | open Ast Print |
234b917a | 24 | |
6ae327f8 AC |
25 | structure SM = StringMap |
26 | ||
234b917a AC |
27 | val dmy = ErrorMsg.dummyLoc |
28 | ||
6ae327f8 | 29 | val defaultT : record ref = ref SM.empty |
8a7c40fa | 30 | val defaultV : (unit -> exp) SM.map ref = ref SM.empty |
6ae327f8 AC |
31 | |
32 | fun registerDefault (name, t, v) = | |
33 | case SM.find (!defaultT, name) of | |
34 | NONE => (defaultT := SM.insert (!defaultT, name, t); | |
35 | defaultV := SM.insert (!defaultV, name, v)) | |
36 | | SOME _ => raise Fail "Duplicate default environment variable" | |
37 | ||
38 | fun tInit () = (TAction ((CRoot, dmy), | |
39 | !defaultT, | |
40 | StringMap.empty), | |
41 | dmy) | |
d189ec0e AC |
42 | |
43 | ||
234b917a | 44 | |
d189ec0e | 45 | fun check' G fname = |
a3698041 | 46 | let |
d189ec0e | 47 | (*val _ = print ("Check " ^ fname ^ "\n")*) |
a3698041 AC |
48 | val prog = Parse.parse fname |
49 | in | |
50 | if !ErrorMsg.anyErrors then | |
d189ec0e | 51 | G |
a3698041 | 52 | else |
6ae327f8 | 53 | Tycheck.checkFile G (tInit ()) prog |
a3698041 AC |
54 | end |
55 | ||
d189ec0e | 56 | fun basis () = |
234b917a | 57 | let |
d189ec0e AC |
58 | val dir = Posix.FileSys.opendir Config.libRoot |
59 | ||
60 | fun loop files = | |
61 | case Posix.FileSys.readdir dir of | |
d612d62c AC |
62 | NONE => (Posix.FileSys.closedir dir; |
63 | files) | |
d189ec0e AC |
64 | | SOME fname => |
65 | if String.isSuffix ".dtl" fname then | |
d612d62c AC |
66 | loop (OS.Path.joinDirFile {dir = Config.libRoot, |
67 | file = fname} | |
d189ec0e AC |
68 | :: files) |
69 | else | |
70 | loop files | |
71 | ||
72 | val files = loop [] | |
73 | val files = Order.order files | |
74 | in | |
6ae327f8 AC |
75 | if !ErrorMsg.anyErrors then |
76 | Env.empty | |
77 | else | |
78 | foldl (fn (fname, G) => check' G fname) Env.empty files | |
d189ec0e AC |
79 | end |
80 | ||
81 | fun check fname = | |
82 | let | |
83 | val _ = ErrorMsg.reset () | |
12adf55a | 84 | val _ = Env.preTycheck () |
d189ec0e AC |
85 | |
86 | val b = basis () | |
234b917a AC |
87 | in |
88 | if !ErrorMsg.anyErrors then | |
d189ec0e | 89 | (b, NONE) |
234b917a AC |
90 | else |
91 | let | |
7f012ffd | 92 | val _ = ErrorMsg.reset () |
d189ec0e | 93 | val prog = Parse.parse fname |
234b917a | 94 | in |
492c1cff | 95 | if !ErrorMsg.anyErrors then |
d189ec0e | 96 | (Env.empty, NONE) |
492c1cff | 97 | else |
d189ec0e | 98 | let |
6ae327f8 | 99 | val G' = Tycheck.checkFile b (tInit ()) prog |
d189ec0e AC |
100 | in |
101 | (G', #3 prog) | |
102 | end | |
234b917a AC |
103 | end |
104 | end | |
105 | ||
d189ec0e | 106 | fun reduce fname = |
a3698041 | 107 | let |
d189ec0e | 108 | val (G, body) = check fname |
a3698041 AC |
109 | in |
110 | if !ErrorMsg.anyErrors then | |
d189ec0e | 111 | NONE |
a3698041 | 112 | else |
d189ec0e AC |
113 | case body of |
114 | SOME body => | |
115 | let | |
116 | val body' = Reduce.reduceExp G body | |
117 | in | |
118 | (*printd (PD.hovBox (PD.PPS.Rel 0, | |
119 | [PD.string "Result:", | |
120 | PD.space 1, | |
121 | p_exp body']))*) | |
122 | SOME body' | |
123 | end | |
124 | | _ => NONE | |
a3698041 AC |
125 | end |
126 | ||
d189ec0e AC |
127 | fun eval fname = |
128 | case reduce fname of | |
129 | (SOME body') => | |
130 | if !ErrorMsg.anyErrors then | |
131 | () | |
132 | else | |
8a7c40fa | 133 | Eval.exec (SM.map (fn f => f ()) (!defaultV)) body' |
d189ec0e AC |
134 | | NONE => () |
135 | ||
234b917a | 136 | end |