summaryrefslogtreecommitdiff
path: root/src/core_print.sml
blob: f360f346c169cf59acf7781ea9b0734f6b886cbd (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
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
(* Copyright (c) 2008-2011, 2013, 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.
 *)

(* Pretty-printing core Ur/Web *)

structure CorePrint :> CORE_PRINT = struct

open Print.PD
open Print

open Core

structure E = CoreEnv

val debug = ref false

fun p_kind' par env (k, _) =
    case k of
        KType => string "Type"
      | KArrow (k1, k2) => parenIf par (box [p_kind' true env k1,
                                             space,
                                             string "->",
                                             space,
                                             p_kind env k2])
      | KName => string "Name"
      | KRecord k => box [string "{", p_kind env k, string "}"]
      | KUnit => string "Unit"
      | KTuple ks => box [string "(",
                          p_list_sep (box [space, string "*", space]) (p_kind env) ks,
                          string ")"]

      | KRel n => ((if !debug then
                         string (E.lookupKRel env n ^ "_" ^ Int.toString n)
                     else
                         string (E.lookupKRel env n))
                    handle E.UnboundRel _ => string ("UNBOUND_REL" ^ Int.toString n))
      | KFun (x, k) => box [string x,
                            space,
                            string "-->",
                            space,
                            p_kind (E.pushKRel env x) k]

and p_kind env = p_kind' false env

fun p_con' par env (c, _) =
    case c of
        TFun (t1, t2) => parenIf par (box [p_con' true env t1,
                                           space,
                                           string "->",
                                           space,
                                           p_con env t2])
      | TCFun (x, k, c) => parenIf par (box [string x,
                                             space,
                                             string "::",
                                             space,
                                             p_kind env k,
                                             space,
                                             string "->",
                                             space,
                                             p_con (E.pushCRel env x k) c])
      | TRecord (CRecord (_, xcs), _) => box [string "{",
                                              p_list (fn (x, c) =>
                                                         box [p_name env x,
                                                              space,
                                                              string ":",
                                                              space,
                                                              p_con env c]) xcs,
                                              string "}"]
      | TRecord c => box [string "$",
                          p_con' true env c]

      | CRel n =>
        ((if !debug then
              string (#1 (E.lookupCRel env n) ^ "_" ^ Int.toString n)
          else
              string (#1 (E.lookupCRel env n)))
         handle E.UnboundRel _ => string ("UNBOUND_" ^ Int.toString n))
      | CNamed n =>
        ((if !debug then
              string (#1 (E.lookupCNamed env n) ^ "__" ^ Int.toString n)
          else
              string (#1 (E.lookupCNamed env n)))
        handle E.UnboundNamed _ => string ("UNBOUNDN_" ^ Int.toString n))
      | CFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]

      | CApp (c1, c2) => parenIf par (box [p_con env c1,
                                           space,
                                           p_con' true env c2])
      | CAbs (x, k, c) => parenIf par (box [string "fn",
                                            space,
                                            string x,
                                            space,
                                            string "::",
                                            space,
                                            p_kind env k,
                                            space,
                                            string "=>",
                                            space,
                                            p_con (E.pushCRel env x k) c])

      | CName s => box [string "#", string s]

      | CRecord (k, xcs) =>
        if !debug then
            parenIf par (box [string "[",
                              p_list (fn (x, c) =>
                                         box [p_con env x,
                                              space,
                                              string "=",
                                              space,
                                              p_con env c]) xcs,
                              string "]::",
                              p_kind env k])
        else
            parenIf par (box [string "[",
                              p_list (fn (x, c) =>
                                         box [p_con env x,
                                              space,
                                              string "=",
                                              space,
                                              p_con env c]) xcs,
                              string "]"])
      | CConcat (c1, c2) => parenIf par (box [p_con' true env c1,
                                              space,
                                              string "++",
                                              space,
                                              p_con env c2])
      | CMap _ => string "map"
      | CUnit => string "()"

      | CTuple cs => box [string "(",
                          p_list (p_con env) cs,
                          string ")"]
      | CProj (c, n) => box [p_con env c,
                             string ".",
                             string (Int.toString n)]

      | CKAbs (x, c) => box [string x,
                             space,
                             string "==>",
                             space,
                             p_con (E.pushKRel env x) c]
      | CKApp (c, k) => box [p_con env c,
                             string "[[",
                             p_kind env k,
                             string "]]"]
      | TKFun (x, c) => box [string x,
                             space,
                             string "-->",
                             space,
                             p_con (E.pushKRel env x) c]
        
and p_con env = p_con' false env

and p_name env (all as (c, _)) =
    case c of
        CName s => string s
      | _ => p_con env all

fun p_enamed env n =
    (if !debug then
        string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
     else
         string (#1 (E.lookupENamed env n)))
    handle E.UnboundNamed _ => string ("UNBOUNDN_" ^ Int.toString n)

fun p_con_named env n =
    (if !debug then
        string (#1 (E.lookupConstructor env n) ^ "__" ^ Int.toString n)
     else
         string (#1 (E.lookupConstructor env n)))
    handle E.UnboundNamed _ => string ("CONSTRUCTOR_" ^ Int.toString n)

fun p_patCon env pc =
    case pc of
        PConVar n => p_con_named env n
      | PConFfi {mod = m, con, arg, params, ...} =>
        if !debug then
            box [string "FFIC[",
                 case arg of
                     NONE => box []
                   | SOME t =>
                     let
                         val k = (KType, ErrorMsg.dummySpan)
                         val env' = foldl (fn (x, env) => E.pushCRel env x k) env params
                     in
                         p_con env' t
                     end,
                 string "](",
                 string m,
                 string ".",
                 string con,
                 string ")"]
        else
            box [string "FFIC(",
                 string m,
                 string ".",
                 string con,
                 string ")"]

fun p_pat' par env (p, _) =
    case p of
        PWild => string "_"
      | PVar (s, _) => string s
      | PPrim p => Prim.p_t p
      | PCon (_, n, _, NONE) => p_patCon env n
      | PCon (_, n, _, SOME p) => parenIf par (box [p_patCon env n,
                                                    space,
                                                    p_pat' true env p])
      | PRecord xps =>
        box [string "{",
             p_list_sep (box [string ",", space]) (fn (x, p, t) =>
                                                      box [string x,
                                                           space,
                                                           string "=",
                                                           space,
                                                           p_pat env p,
                                                           if !debug then
                                                               box [space,
                                                                    string ":",
                                                                    space,
                                                                    p_con env t]
                                                           else
                                                               box []]) xps,
             string "}"]

and p_pat x = p_pat' false x

fun p_exp' par env (e, _) =
    case e of
        EPrim p => Prim.p_t p
      | ERel n =>
        ((if !debug then
              string (#1 (E.lookupERel env n) ^ "_" ^ Int.toString n)
          else
              string (#1 (E.lookupERel env n)))
         handle E.UnboundRel _ => string ("UNBOUND_" ^ Int.toString n))
      | ENamed n => p_enamed env n
      | ECon (_, pc, ts, NONE) => box [string "[",
                                       p_patCon env pc,
                                       p_list_sep (box []) (fn t => box [space, string "[", p_con env t, string "]"]) ts,
                                       string "]"]
      | ECon (_, pc, ts, SOME e) => box [string "[",
                                        p_patCon env pc,
                                        space,
                                        p_exp' true env e,
                                        p_list_sep (box []) (fn t => box [space, string "[", p_con env t, string "]"]) ts,
                                        string "]"]
      | EFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
      | EFfiApp (m, x, es) => box [string "FFI(",
                                   string m,
                                   string ".",
                                   string x,
                                   string "(",
                                   p_list (p_exp env o #1) es,
                                   string "))"]
      | EApp (e1, e2) => parenIf par (box [p_exp' true env e1,
                                           space,
                                           p_exp' true env e2])
      | EAbs (x, t, _, e) => parenIf par (box [string "(fn",
                                               space,
                                               string x,
                                               space,
                                               string ":",
                                               space,
                                               p_con env t,
                                               space,
                                               string "=>",
                                               space,
                                               p_exp (E.pushERel env x t) e,
                                               string ")"])
      | ECApp (e, c) => parenIf par (box [p_exp env e,
                                          space,
                                          string "[",
                                          p_con env c,
                                          string "]"])
      | ECAbs (x, k, e) => parenIf par (box [string "fn",
                                             space,
                                             string x,
                                             space,
                                             string "::",
                                             space,
                                             p_kind env k,
                                             space,
                                             string "=>",
                                             space,
                                             p_exp (E.pushCRel env x k) e])

      | ERecord xes => box [string "{",
                            p_list (fn (x, e, _) =>
                                       box [p_name env x,
                                            space,
                                            string "=",
                                            space,
                                            p_exp env e]) xes,
                            string "}"]
      | EField (e, c, {field, rest}) =>
        if !debug then
            box [p_exp' true env e,
                 string ".",
                 p_con' true env c,
                 space,
                 string "[",
                 p_con env field,
                 space,
                 string " in ",
                 space,
                 p_con env rest,
                 string "]"]
        else
            box [p_exp' true env e,
                 string ".",
                 p_con' true env c]
      | EConcat (e1, c1, e2, c2) =>
        parenIf par (if !debug then
                         box [p_exp' true env e1,
                              space,
                              string ":",
                              space,
                              p_con env c1,
                              space,
                              string "++",
                              space,
                              p_exp' true env e2,
                              space,
                              string ":",
                              space,
                              p_con env c2]
                     else
                         box [p_exp' true env e1,
                              space,
                              string "with",
                              space,
                              p_exp' true env e2])
      | ECut (e, c, {field, rest}) =>
        parenIf par (if !debug then
                         box [p_exp' true env e,
                              space,
                              string "--",
                              space,
                              p_con' true env c,
                              space,
                              string "[",
                              p_con env field,
                              space,
                              string " in ",
                              space,
                              p_con env rest,
                              string "]"]
                     else
                         box [p_exp' true env e,
                              space,
                              string "--",
                              space,
                              p_con' true env c])
      | ECutMulti (e, c, {rest}) =>
        parenIf par (if !debug then
                         box [p_exp' true env e,
                              space,
                              string "---",
                              space,
                              p_con' true env c,
                              space,
                              string "[",
                              p_con env rest,
                              string "]"]
                     else
                         box [p_exp' true env e,
                              space,
                              string "---",
                              space,
                              p_con' true env c])

      | ECase (e, pes, {disc, result}) =>
        parenIf par (box [string "case",
                          space,
                          p_exp env e,
                          space,
                          if !debug then
                              box [string "in",
                                   space,
                                   p_con env disc,
                                   space,
                                   string "return",
                                   space,
                                   p_con env result,
                                   space]
                          else
                              box [],
                          string "of",
                          space,
                          p_list_sep (box [space, string "|", space])
                                     (fn (p, e) => box [p_pat env p,
                                                        space,
                                                        string "=>",
                                                        space,
                                                        p_exp (E.patBinds env p) e]) pes])

      | EWrite e => box [string "write(",
                         p_exp env e,
                         string ")"]

      | EClosure (n, es) => box [string "CLOSURE(",
                                 p_enamed env n,
                                 p_list_sep (string "") (fn e => box [string ", ",
                                                                      p_exp env e]) es,
                                 string ")"]

      | ELet (x, t, e1, e2) => box [string "let",
                                    space,
                                    string x,
                                    space,
                                    string ":",
                                    space,
                                    p_con env t,
                                    space,
                                    string "=",
                                    space,
                                    p_exp env e1,
                                    space,
                                    string "in",
                                    newline,
                                    p_exp (E.pushERel env x t) e2]

      | EServerCall (n, es, _, _) => box [string "Server(",
                                          p_enamed env n,
                                          string ",",
                                          space,
                                          p_list (p_exp env) es,
                                          string ")"]

      | EKAbs (x, e) => box [string x,
                             space,
                             string "==>",
                             space,
                             p_exp (E.pushKRel env x) e]
      | EKApp (e, k) => box [p_exp env e,
                             string "[[",
                             p_kind env k,
                             string "]]"]

and p_exp env = p_exp' false env

fun p_named x n =
    if !debug then
        box [string x,
             string "__",
             string (Int.toString n)]
    else
        string x        

fun p_vali env (x, n, t, e, s) =
    let
        val xp = p_named x n
    in
        box [xp,
             space,
             string "as",
             space,
             string s,
             space,
             string ":",
             space,
             p_con env t,
             space,
             string "=",
             space,
             p_exp env e]
    end

fun p_datatype env (x, n, xs, cons) =
    let
        val k = (KType, ErrorMsg.dummySpan)
        val env = E.pushCNamed env x n (KType, ErrorMsg.dummySpan) NONE
        val env = foldl (fn (x, env) => E.pushCRel env x k) env xs

        val xp = if !debug then
                     string (x ^ "__" ^ Int.toString n)
                 else
                     string x
    in
        box [xp,
             p_list_sep (box []) (fn x => box [space, string x]) xs,
             space,
             string "=",
             space,
             p_list_sep (box [space, string "|", space])
                        (fn (x, n, NONE) => if !debug then (string (x ^ "__" ^ Int.toString n))
                                            else string x
                          | (x, n, SOME t) => box [if !debug then (string (x ^ "__" ^ Int.toString n))
                                                   else string x, space, string "of", space, p_con env t])
                        cons]
    end

fun p_decl env (dAll as (d, _) : decl) =
    case d of
        DCon (x, n, k, c) =>
        let
            val xp = if !debug then
                         box [string x,
                              string "__",
                              string (Int.toString n)]
                     else
                         string x
        in
            box [string "con",
                 space,
                 xp,
                 space,
                 string "::",
                 space,
                 p_kind env k,
                 space,
                 string "=",
                 space,
                 p_con env c]
        end
      | DDatatype x => box [string "datatype",
                            space,
                            p_list_sep (box [space, string "and", space]) (p_datatype (E.declBinds env dAll)) x]
      | DVal vi => box [string "val",
                        space,
                        p_vali env vi]
      | DValRec vis =>
        let
            val env = E.declBinds env dAll
        in
            box [string "val",
                 space,
                 string "rec",
                 space,
                 p_list_sep (box [newline, string "and", space]) (p_vali env) vis]
        end
      | DExport (ek, n, _) => box [string "export",
                                   space,
                                   Export.p_export_kind ek,
                                   space,
                                   p_enamed env n,
                                   space,
                                   string "as",
                                   space,
                                   (p_con env (#2 (E.lookupENamed env n))
                                    handle E.UnboundNamed _ => string "UNBOUND")]
      | DTable (x, n, c, s, pe, _, ce, _) => box [string "table",
                                                  space,
                                                  p_named x n,
                                                  space,
                                                  string "as",
                                                  space,
                                                  string s,
                                                  space,
                                                  string ":",
                                                  space,
                                                  p_con env c,
                                                  space,
                                                  string "keys",
                                                  space,
                                                  p_exp env pe,
                                                  space,
                                                  string "constraints",
                                                  space,
                                                  p_exp (E.declBinds env dAll) ce]
      | DSequence (x, n, s) => box [string "sequence",
                                    space,
                                    p_named x n,
                                    space,
                                    string "as",
                                    space,
                                    string s]
      | DView (x, n, s, e, _) => box [string "view",
                                      space,
                                      p_named x n,
                                      space,
                                      string "as",
                                      space,
                                      p_exp env e]
      | DDatabase s => box [string "database",
                            space,
                            string s]
      | DCookie (x, n, c, s) => box [string "cookie",
                                     space,
                                     p_named x n,
                                     space,
                                     string "as",
                                     space,
                                     string s,
                                     space,
                                     string ":",
                                     space,
                                     p_con env c]
      | DStyle (x, n, s) => box [string "style",
                                 space,
                                 p_named x n,
                                 space,
                                 string "as",
                                 space,
                                 string s]
      | DTask (e1, e2) => box [string "task",
                               space,
                               p_exp env e1,
                               space,
                               string "=",
                               space,
                               p_exp env e2]
      | DPolicy e1 => box [string "policy",
                           space,
                           p_exp env e1]
      | DOnError _ => string "ONERROR"

fun p_file env file =
    let
        val (pds, _) = ListUtil.foldlMap (fn (d, env) =>
                                             (p_decl env d,
                                              E.declBinds env d))
                             env file
    in
        p_list_sep newline (fn x => x) pds
    end

end