summaryrefslogtreecommitdiff
path: root/src/compiler.sml
blob: e92f86c301b52f3b7a3028d61db4f8babda63796 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
(* Copyright (c) 2008, Adam Chlipala
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 * - The names of contributors may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *)

(* Ur/Web language parser *)

structure Compiler :> COMPILER = struct 

structure UrwebLrVals = UrwebLrValsFn(structure Token = LrParser.Token)
structure Lex = UrwebLexFn(structure Tokens = UrwebLrVals.Tokens)
structure UrwebP = Join(structure ParserData = UrwebLrVals.ParserData
                         structure Lex = Lex
                         structure LrParser = LrParser)

type job = {
     prefix : string,
     database : string option,
     sources : string list,
     exe : string,
     sql : string option,
     debug : bool
}

type ('src, 'dst) phase = {
     func : 'src -> 'dst,
     print : 'dst -> Print.PD.pp_desc
}

type pmap = (string * Time.time) list

type ('src, 'dst) transform = {
     func : 'src -> 'dst option,
     print : 'dst -> Print.PD.pp_desc,
     time : 'src * pmap -> 'dst option * pmap
}

fun transform (ph : ('src, 'dst) phase) name = {
    func = fn input => let
                  val v = #func ph input
              in
                  if ErrorMsg.anyErrors () then
                      NONE
                  else
                      SOME v
              end,
    print = #print ph,
    time = fn (input, pmap) => let
                  val befor = Time.now ()
                  val v = #func ph input
                  val elapsed = Time.- (Time.now (), befor)
              in
                  (if ErrorMsg.anyErrors () then
                       NONE
                   else
                       SOME v,
                   (name, elapsed) :: pmap)
              end
}

fun op o (tr2 : ('b, 'c) transform, tr1 : ('a, 'b) transform) = {
    func = fn input => case #func tr1 input of
                           NONE => NONE
                         | SOME v => #func tr2 v,
    print = #print tr2,
    time = fn (input, pmap) => let
                  val (ro, pmap) = #time tr1 (input, pmap)
              in
                  case ro of
                      NONE => (NONE, pmap)
                    | SOME v => #time tr2 (v, pmap)
              end
}

fun check (tr : ('src, 'dst) transform) x = (ErrorMsg.resetErrors ();
                                             ignore (#func tr x))

fun run (tr : ('src, 'dst) transform) x = (ErrorMsg.resetErrors ();
                                           #func tr x)

fun runPrint (tr : ('src, 'dst) transform) input =
    (ErrorMsg.resetErrors ();
     case #func tr input of
         NONE => print "Failure\n"
       | SOME v =>
         (print "Success\n";
          Print.print (#print tr v);
          print "\n"))

fun time (tr : ('src, 'dst) transform) input =
    let
        val (_, pmap) = #time tr (input, [])
    in
        app (fn (name, time) =>
                print (name ^ ": " ^ LargeReal.toString (Time.toReal time) ^ "\n")) (rev pmap);
        print ("TOTAL: " ^ LargeReal.toString (Time.toReal (foldl Time.+ Time.zeroTime (map #2 pmap))) ^ "\n");
        print "\n"
    end

fun timePrint (tr : ('src, 'dst) transform) input =
    let
        val (ro, pmap) = #time tr (input, [])
    in
        app (fn (name, time) =>
                print (name ^ ": " ^ LargeReal.toString (Time.toReal time) ^ "\n")) (rev pmap);
        print ("TOTAL: " ^ LargeReal.toString (Time.toReal (foldl Time.+ Time.zeroTime (map #2 pmap))) ^ "\n");
        print "\n";
        case ro of
            NONE => print "Failure\n"
          | SOME v =>
            (print "Success\n";
             Print.print (#print tr v);
             print "\n")
    end

val parseUrs =
    {func = fn filename => let
                   val fname = OS.FileSys.tmpName ()
                   val outf = TextIO.openOut fname
                   val () = TextIO.output (outf, "sig\n")
                   val inf = TextIO.openIn filename
                   fun loop () =
                       case TextIO.inputLine inf of
                           NONE => ()
                         | SOME line => (TextIO.output (outf, line);
                                         loop ())
                   val () = loop ()
                   val () = TextIO.closeIn inf
                   val () = TextIO.closeOut outf

                   val () = (ErrorMsg.resetErrors ();
                             ErrorMsg.resetPositioning filename;
                             Lex.UserDeclarations.initialize ())
	           val file = TextIO.openIn fname
	           fun get _ = TextIO.input file
	           fun parseerror (s, p1, p2) = ErrorMsg.errorAt' (p1, p2) s
	           val lexer = LrParser.Stream.streamify (Lex.makeLexer get)
	           val (absyn, _) = UrwebP.parse (30, lexer, parseerror, ())
               in
                   TextIO.closeIn file;
                   case absyn of
                       [(Source.DSgn ("?", (Source.SgnConst sgis, _)), _)] => sgis
                     | _ => (ErrorMsg.errorAt {file = filename,
                                               first = {line = 0,
                                                        char = 0},
                                               last = {line = 0,
                                                       char = 0}} "Not a signature";
                             [])
               end
               handle LrParser.ParseError => [],
     print = Print.p_list_sep Print.PD.newline SourcePrint.p_sgn_item}

(* The main parsing routine *)
val parseUr = {
    func = fn filename =>
              let
                  val () = (ErrorMsg.resetErrors ();
                            ErrorMsg.resetPositioning filename;
                            Lex.UserDeclarations.initialize ())
	          val file = TextIO.openIn filename
	          fun get _ = TextIO.input file
	          fun parseerror (s, p1, p2) = ErrorMsg.errorAt' (p1, p2) s
	          val lexer = LrParser.Stream.streamify (Lex.makeLexer get)
	          val (absyn, _) = UrwebP.parse (30, lexer, parseerror, ())
              in
                  TextIO.closeIn file;
                  case absyn of
                      [(Source.DSgn ("?", _), _)] =>
                      (ErrorMsg.errorAt {file = filename,
                                         first = {line = 0,
                                                  char = 0},
                                         last = {line = 0,
                                                 char = 0}} "File starts with 'sig'";
                       [])
                    | _ => absyn
              end
              handle LrParser.ParseError => [],
     print = SourcePrint.p_file}    

fun p_job {prefix, database, exe, sql, sources, debug} =
    let
        open Print.PD
        open Print
    in
        box [if debug then
                 box [string "DEBUG", newline]
             else
                 box [],
             case database of
                 NONE => string "No database."
               | SOME db => string ("Database: " ^ db),
             newline,
             string "Exe: ",
             string exe,
             newline,
             case sql of
                 NONE => string "No SQL file."
               | SOME sql => string ("SQL fle: " ^ sql),
             string "Sources:",
             p_list string sources,
             newline]
    end

fun trim s =
    let
        val (_, s) = Substring.splitl Char.isSpace s
        val (s, _) = Substring.splitr Char.isSpace s
    in
        s
    end

val parseUrp = {
    func = fn filename =>
              let
                  val dir = OS.Path.dir filename
                  val inf = TextIO.openIn (OS.Path.joinBaseExt {base = filename, ext = SOME "urp"})

                  fun relify fname =
                      OS.Path.concat (dir, fname)
                      handle OS.Path.Path => fname

                  fun readSources acc =
                      case TextIO.inputLine inf of
                          NONE => rev acc
                        | SOME line =>
                          let
                              val acc = if CharVector.all Char.isSpace line then
                                            acc
                                        else
                                            let
                                                val fname = String.implode (List.filter (fn x => not (Char.isSpace x))
                                                                                        (String.explode line))
                                                val fname = relify fname
                                            in
                                                fname :: acc
                                            end
                          in
                              readSources acc
                          end

                  fun finish (prefix, database, exe, sql, debug, sources) =
                      {prefix = Option.getOpt (prefix, "/"),
                       database = database,
                       exe = Option.getOpt (exe, OS.Path.joinBaseExt {base = OS.Path.base filename,
                                                                      ext = SOME "exe"}),
                       sql = sql,
                       debug = debug,
                       sources = sources}

                  fun read (prefix, database, exe, sql, debug) =
                      case TextIO.inputLine inf of
                          NONE => finish (prefix, database, exe, sql, debug, [])
                        | SOME "\n" => finish (prefix, database, exe, sql, debug, readSources [])
                        | SOME line =>
                          let
                              val (cmd, arg) = Substring.splitl (fn x => not (Char.isSpace x)) (Substring.full line)
                              val cmd = Substring.string (trim cmd)
                              val arg = Substring.string (trim arg)
                          in
                              case cmd of
                                  "prefix" =>
                                  (case prefix of
                                       NONE => ()
                                     | SOME _ => ErrorMsg.error "Duplicate 'prefix' directive";
                                   read (SOME arg, database, exe, sql, debug))
                                | "database" =>
                                  (case database of
                                       NONE => ()
                                     | SOME _ => ErrorMsg.error "Duplicate 'database' directive";
                                   read (prefix, SOME arg, exe, sql, debug))
                                | "exe" =>
                                  (case exe of
                                       NONE => ()
                                     | SOME _ => ErrorMsg.error "Duplicate 'exe' directive";
                                   read (prefix, database, SOME (relify arg), sql, debug))
                                | "sql" =>
                                  (case sql of
                                       NONE => ()
                                     | SOME _ => ErrorMsg.error "Duplicate 'sql' directive";
                                   read (prefix, database, exe, SOME (relify arg), debug))
                                | "debug" => read (prefix, database, exe, sql, true)
                                | _ => (ErrorMsg.error ("Unrecognized command '" ^ cmd ^ "'");
                                        read (prefix, database, exe, sql, debug))
                          end

                  val job = read (NONE, NONE, NONE, NONE, false)
              in
                  TextIO.closeIn inf;
                  Monoize.urlPrefix := #prefix job;
                  job
              end,
    print = p_job
}

val toParseJob = transform parseUrp "parseJob"

fun capitalize "" = ""
  | capitalize s = str (Char.toUpper (String.sub (s, 0))) ^ String.extract (s, 1, NONE)

val parse = {
    func = fn {database, sources = fnames, ...} : job =>
              let
                  fun nameOf fname = capitalize (OS.Path.file fname)

                  fun parseOne fname =
                      let
                          val mname = nameOf fname
                          val ur = OS.Path.joinBaseExt {base = fname, ext = SOME "ur"}
                          val urs = OS.Path.joinBaseExt {base = fname, ext = SOME "urs"}

                          val sgnO =
                              if Posix.FileSys.access (urs, []) then
                                  SOME (Source.SgnConst (#func parseUrs urs),
                                        {file = urs,
                                         first = ErrorMsg.dummyPos,
                                         last = ErrorMsg.dummyPos})
                              else
                                  NONE

                          val loc = {file = ur,
                                     first = ErrorMsg.dummyPos,
                                     last = ErrorMsg.dummyPos}

                          val ds = #func parseUr ur
                      in
                          (Source.DStr (mname, sgnO, (Source.StrConst ds, loc)), loc)
                      end

                  val ds = map parseOne fnames
              in
                  let
                      val final = nameOf (List.last fnames)

                      val ds = ds @ [(Source.DExport (Source.StrVar final, ErrorMsg.dummySpan), ErrorMsg.dummySpan)]
                  in
                      case database of
                          NONE => ds
                        | SOME s => (Source.DDatabase s, ErrorMsg.dummySpan) :: ds
                  end handle Empty => ds
              end,
    print = SourcePrint.p_file
}

val toParse = transform parse "parse" o toParseJob

fun libFile s = OS.Path.joinDirFile {dir = Config.libUr,
                                     file = s}
fun clibFile s = OS.Path.joinDirFile {dir = Config.libC,
                                      file = s}

val elaborate = {
    func = fn file => let
                  val basis = #func parseUrs (libFile "basis.urs")
                  val topSgn = #func parseUrs (libFile "top.urs")
                  val topStr = #func parseUr (libFile "top.ur")
              in
                  Elaborate.elabFile basis topStr topSgn ElabEnv.empty file
              end,
    print = ElabPrint.p_file ElabEnv.empty
}

val toElaborate = transform elaborate "elaborate" o toParse

val unnest = {
    func = Unnest.unnest,
    print = ElabPrint.p_file ElabEnv.empty
}

val toUnnest = transform unnest "unnest" o toElaborate

val termination = {
    func = (fn file => (Termination.check file; file)),
    print = ElabPrint.p_file ElabEnv.empty
}

val toTermination = transform termination "termination" o toUnnest

val explify = {
    func = Explify.explify,
    print = ExplPrint.p_file ExplEnv.empty
}

val toExplify = transform explify "explify" o toTermination

val corify = {
    func = Corify.corify,
    print = CorePrint.p_file CoreEnv.empty
}

val toCorify = transform corify "corify" o toExplify

val especialize = {
    func = ESpecialize.specialize,
    print = CorePrint.p_file CoreEnv.empty
}

val toEspecialize = transform especialize "especialize" o toCorify

val shake = {
    func = Shake.shake,
    print = CorePrint.p_file CoreEnv.empty
}

val toShake1 = transform shake "shake1" o toEspecialize

val tag = {
    func = Tag.tag,
    print = CorePrint.p_file CoreEnv.empty
}

val toTag = transform tag "tag" o toShake1

val reduce = {
    func = Reduce.reduce,
    print = CorePrint.p_file CoreEnv.empty
}

val toReduce = transform reduce "reduce" o toTag

val unpoly = {
    func = Unpoly.unpoly,
    print = CorePrint.p_file CoreEnv.empty
}

val toUnpoly = transform unpoly "unpoly" o toReduce

val specialize = {
    func = Specialize.specialize,
    print = CorePrint.p_file CoreEnv.empty
}

val toSpecialize = transform specialize "specialize" o toUnpoly

val toShake2 = transform shake "shake2" o toSpecialize

val monoize = {
    func = Monoize.monoize CoreEnv.empty,
    print = MonoPrint.p_file MonoEnv.empty
}

val toMonoize = transform monoize "monoize" o toShake2

val mono_opt = {
    func = MonoOpt.optimize,
    print = MonoPrint.p_file MonoEnv.empty
}

val toMono_opt1 = transform mono_opt "mono_opt1" o toMonoize

val untangle = {
    func = Untangle.untangle,
    print = MonoPrint.p_file MonoEnv.empty
}

val toUntangle = transform untangle "untangle" o toMono_opt1

val mono_reduce = {
    func = MonoReduce.reduce,
    print = MonoPrint.p_file MonoEnv.empty
}

val toMono_reduce = transform mono_reduce "mono_reduce" o toUntangle

val mono_shake = {
    func = MonoShake.shake,
    print = MonoPrint.p_file MonoEnv.empty
}

val toMono_shake = transform mono_shake "mono_shake1" o toMono_reduce

val toMono_opt2 = transform mono_opt "mono_opt2" o toMono_shake

val pathcheck = {
    func = (fn file => (PathCheck.check file; file)),
    print = MonoPrint.p_file MonoEnv.empty
}

val toPathcheck = transform pathcheck "pathcheck" o toMono_opt2

val cjrize = {
    func = Cjrize.cjrize,
    print = CjrPrint.p_file CjrEnv.empty
}

val toCjrize = transform cjrize "cjrize" o toPathcheck

val prepare = {
    func = Prepare.prepare,
    print = CjrPrint.p_file CjrEnv.empty
}

val toPrepare = transform prepare "prepare" o toCjrize

val sqlify = {
    func = Cjrize.cjrize,
    print = CjrPrint.p_sql CjrEnv.empty
}

val toSqlify = transform sqlify "sqlify" o toMono_opt2

fun compileC {cname, oname, ename, libs} =
    let
        val urweb_o = clibFile "urweb.o"
        val driver_o = clibFile "driver.o"

        val compile = "gcc " ^ Config.gccArgs ^ " -Wstrict-prototypes -Werror -O3 -I include -c " ^ cname ^ " -o " ^ oname
        val link = "gcc -Werror -O3 -lm -pthread " ^ libs ^ " " ^ urweb_o ^ " " ^ oname ^ " " ^ driver_o ^ " -o " ^ ename
    in
        if not (OS.Process.isSuccess (OS.Process.system compile)) then
            print "C compilation failed\n"
        else if not (OS.Process.isSuccess (OS.Process.system link)) then
            print "C linking failed\n"
        else
            print "Success\n"
    end

fun compile job =
    case run toPrepare job of
        NONE => print "Ur compilation failed\n"
      | SOME file =>
        let
            val job = valOf (run (transform parseUrp "parseUrp") job)

            val (cname, oname, cleanup) =
                if #debug job then
                    ("/tmp/urweb.c", "/tmp/urweb.o", fn () => ())
                else
                    let
                        val dir = OS.FileSys.tmpName ()
                        val () = if OS.FileSys.access (dir, []) then
                                     OS.FileSys.remove dir
                                 else
                                     ()
                        val cname = OS.Path.joinDirFile {dir = dir, file = "urweb.c"}
                        val oname = OS.Path.joinDirFile {dir = dir, file = "urweb.o"}
                    in
                        OS.FileSys.mkDir dir;
                        (cname, oname,
                         fn () => (OS.FileSys.remove cname;
                                   OS.FileSys.remove oname;
                                   OS.FileSys.rmDir dir))
                    end
            val ename = #exe job
        in
            let
                val outf = TextIO.openOut cname
                val s = TextIOPP.openOut {dst = outf, wid = 80}

                val hasDb = List.exists (fn (Cjr.DDatabase _, _) => true | _ => false) (#1 file)
                val libs =
                    if hasDb then
                        "-lpq"
                    else
                        ""
            in
                Print.fprint s (CjrPrint.p_file CjrEnv.empty file);
		TextIO.output1 (outf, #"\n");
                TextIO.closeOut outf;

                case #sql job of
                    NONE => ()
                  | SOME sql =>
                    let
                        val outf = TextIO.openOut sql
                        val s = TextIOPP.openOut {dst = outf, wid = 80}
                    in
                        Print.fprint s (CjrPrint.p_sql CjrEnv.empty file);
                        TextIO.closeOut outf
                    end;

                compileC {cname = cname, oname = oname, ename = ename, libs = libs};
                
                cleanup ()
            end
            handle ex => (((cleanup ()) handle _ => ()); raise ex)
        end

end