summaryrefslogtreecommitdiff
path: root/src/mono_print.sml
blob: d1f5fc272b77a2640e141c2c34476f8fe8522e4f (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
(* 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.
 *)

(* Pretty-printing monomorphic Ur/Web *)

structure MonoPrint :> MONO_PRINT = struct

open Print.PD
open Print

open Mono

structure E = MonoEnv

val debug = ref false

val dummyt = (TRecord [], ErrorMsg.dummySpan)

fun p_typ' par env (t, _) =
    case t of
        TFun (t1, t2) => parenIf par (box [p_typ' true env t1,
                                           space,
                                           string "->",
                                           space,
                                           p_typ env t2])
      | TRecord xcs => box [string "{",
                            p_list (fn (x, t) =>
                                       box [string x,
                                            space,
                                            string ":",
                                            space,
                                            p_typ env t]) xcs,
                            string "}"]
      | TDatatype (n, ref (dk, _)) =>
        ((if !debug then
              string (#1 (E.lookupDatatype env n) ^ "__" ^ Int.toString n  ^ "["
                      ^ (case dk of
                             Option => "Option"
                           | Enum => "Enum"
                           | Default => "Default")
                      ^ "]")
          else
              string (#1 (E.lookupDatatype env n)))
         handle E.UnboundNamed _ => string ("UNBOUND_DATATYPE_" ^ Int.toString n))
      | TFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
      | TOption t => box [string "option(",
                          p_typ env t,
                          string ")"]
      | TList t => box [string "list(",
                        p_typ env t,
                        string ")"]
      | TSource => string "source"
      | TSignal t => box [string "signal(",
                          p_typ env t,
                          string ")"]

and p_typ env = p_typ' false env

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, ...} => 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, _) =>
                                                      box [string x,
                                                           space,
                                                           string "=",
                                                           space,
                                                           p_pat env p]) xps,
             string "}"]
      | PNone _ => string "None"
      | PSome (t, p) =>
        if !debug then
            box [string "Some[",
                 p_typ env t,
                 string "]",
                 space,
                 p_pat' true env p]
        else
            box [string "Some",
                 space,
                 p_pat' true env p]

and p_pat x = p_pat' false x

fun p_mode env m =
    case m of
        Attribute => string "Attribute"
      | Script => string "Script"
      | Source t => box [string "Source", space, p_typ env t]

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, NONE) => p_patCon env pc
      | ECon (_, pc, SOME e) => parenIf par (box [p_patCon env pc,
                                                  space,
                                                  p_exp' true env e])
      | ENone _ => string "None"
      | ESome (_, e) => parenIf par (box [string "Some",
                                          space,
                                          p_exp' true env e])

      | 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) es,
                                   string "))"]
      | EApp (e1, e2) => parenIf par (box [p_exp env e1,
                                           space,
                                           p_exp' true env e2])
      | EAbs (x, t, _, e) => parenIf true (box [string "fn",
                                                space,
                                                string x,
                                                space,
                                                string ":",
                                                space,
                                                p_typ env t,
                                                space,
                                                string "=>",
                                                space,
                                                p_exp (E.pushERel env x t NONE) e])

      | EUnop (s, e) => parenIf true (box [string s,
                                           space,
                                           p_exp' true env e])
      | EBinop (s, e1, e2) => parenIf true (box [p_exp' true env e1,
                                                 space,
                                                 string s,
                                                 space,
                                                 p_exp' true env e2])

      | ERecord xes => box [string "{",
                            p_list (fn (x, e, _) =>
                                       box [string x,
                                            space,
                                            string "=",
                                            space,
                                            p_exp env e]) xes,
                            string "}"]
      | EField (e, x) =>
        box [p_exp' true env e,
             string ".",
             string x]

      | ECase (e, pes, {result, ...}) => parenIf true (box [string "case",
                                                            space,
                                                            p_exp env e,
                                                            space,
                                                            if !debug then
                                                                box [string "return",
                                                                     space,
                                                                     p_typ 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])

      | EError (e, t) => box [string "(error",
                              space,
                              p_exp env e,
                              space,
                              string ":",
                              space,
                              p_typ env t,
                              string ")"]
      | EReturnBlob {blob, mimeType, t} => box [string "(blob",
                                                space,
                                                p_exp env blob,
                                                space,
                                                string "in",
                                                space,
                                                p_exp env mimeType,
                                                space,
                                                string ":",
                                                space,
                                                p_typ env t,
                                                string ")"]
      | ERedirect (e, t) => box [string "(redirect",
                                 space,
                                 p_exp env e,
                                 space,
                                 string ":",
                                 space,
                                 p_typ env t,
                                 string ")"]

      | EStrcat (e1, e2) => parenIf par (box [p_exp' true env e1,
                                              space,
                                              string "^",
                                              space,
                                              p_exp env e2])

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

      | ESeq (e1, e2) => box [string "(",
                              p_exp env e1,
                              string ";",
                              space,
                              p_exp env e2,
                              string ")"]
      | ELet (x, t, e1, e2) => box [string "(let",
                                    space,
                                    string x,
                                    space,
                                    string ":",
                                    space,
                                    p_typ env t,
                                    space,
                                    string "=",
                                    space,
                                    string "(",
                                    p_exp env e1,
                                    string ")",
                                    space,
                                    string "in",
                                    space,
                                    string "(",
                                    p_exp (E.pushERel env x t NONE) e2,
                                    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 ")"]

      | EQuery {exps, tables, state, query, body, initial} =>
        box [string "query[",
             p_list (fn (x, t) => box [string x, space, string ":", space, p_typ env t]) exps,
             string "] [",
             p_list (fn (x, xts) => box [string x,
                                         space,
                                         string ":",
                                         space,
                                         string "{",
                                         p_list (fn (x, t) => box [string x, space, string ":", space, p_typ env t]) xts,
                                         string "}"]) tables,
             string "] [",
             p_typ env state,
             string "]",
             space,
             p_exp env query,
             space,
             string "initial",
             space,
             p_exp env initial,
             space,
             string "in",
             space,
             p_exp (E.pushERel (E.pushERel env "r" dummyt NONE) "acc" dummyt NONE) body]
      | EDml e => box [string "dml(",
                       p_exp env e,
                       string ")"]
      | ENextval e => box [string "nextval(",
                           p_exp env e,
                           string ")"]
      | ESetval (e1, e2) => box [string "setval(",
                                 p_exp env e1,
                                 string ",",
                                 space,
                                 p_exp env e2,
                                 string ")"]
      | EUnurlify (e, _, _) => box [string "unurlify(",
                                    p_exp env e,
                                    string ")"]
      | EJavaScript (m, e) => box [string "JavaScript(",
                                   p_mode env m,
                                   string ",",
                                   space,
                                   p_exp env e,
                                   string ")"]

      | ESignalReturn e => box [string "Return(",
                                p_exp env e,
                                string ")"]
      | ESignalBind (e1, e2) => box [string "Bind(",
                                     p_exp env e1,
                                     string ",",
                                     space,
                                     p_exp env e2,
                                     string ")"]
      | ESignalSource e => box [string "Source(",
                                p_exp env e,
                                string ")"]

      | EServerCall (n, _, _) => box [string "Server(",
                                      p_exp env n,
                                      string ")"]
      | ERecv (n, _) => box [string "Recv(",
                             p_exp env n,
                             string ")"]
      | ESleep n => box [string "Sleep(",
                         p_exp env n,
                         string ")"]
      | ESpawn n => box [string "Spawn(",
                         p_exp env n,
                         string ")"]

and p_exp env = p_exp' false env

fun p_vali env (x, n, t, e, s) =
    let
        val xp = if !debug then
                     box [string x,
                          string "__",
                          string (Int.toString n)]
                 else
                     string x        
    in
        box [xp,
             space,
             string "as",
             space,
             string s,
             space,
             string ":",
             space,
             p_typ env t,
             space,
             string "=",
             space,
             p_exp env e]
    end

fun p_datatype env (x, n, cons) =
    let
        val env = E.pushDatatype env x n cons
    in
        box [string x,
             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, _, SOME t) => box [if !debug then (string (x ^ "__" ^ Int.toString n))
                                                   else string x, space, string "of", space, p_typ env t])
                        cons]
    end

fun p_decl env (dAll as (d, _) : decl) =
    case d of
        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, s, n, ts, t, _) => box [string "export",
                                             space,
                                             Export.p_export_kind ek,
                                             space,
                                             p_enamed env n,
                                             space,
                                             string "as",
                                             space,
                                             string s,
                                             p_list_sep (string "") (fn t => box [space,
                                                                                  string "(",
                                                                                  p_typ env t,
                                                                                  string ")"]) ts,
                                             space,
                                             string "->",
                                             space,
                                             p_typ env t]

      | DTable (s, xts, pe, ce) => box [string "(* SQL table ",
                                        string s,
                                        space,
                                        string ":",
                                        space,
                                        p_list (fn (x, t) => box [string x,
                                                                  space,
                                                                  string ":",
                                                                  space,
                                                                  p_typ env t]) xts,
                                        space,
                                        string "keys",
                                        space,
                                        p_exp env pe,
                                        space,
                                        string "constraints",
                                        space,
                                        p_exp env ce,
                                        space,
                                        string "*)"]
      | DSequence s => box [string "(* SQL sequence ",
                            string s,
                            string "*)"]
      | DView (s, _, e) => box [string "(* SQL view ",
                                string s,
                                space,
                                string "as",
                                space,
                                p_exp env e,
                                string "*)"]
      | DDatabase {name, expunge, initialize} => box [string "database",
                                                      space,
                                                      string name,
                                                      space,
                                                      string "(",
                                                      p_enamed env expunge,
                                                      string ",",
                                                      space,
                                                      p_enamed env initialize,
                                                      string ")"]
      | DJavaScript s => box [string "JavaScript(",
                              string s,
                              string ")"]

      | DCookie s => box [string "cookie",
                          space,
                          string s]
      | DStyle s => box [string "style",
                         space,
                         string s]
      | DTask (e1, e2) => box [string "task",
                               space,
                               p_exp env e1,
                               space,
                               string "=",
                               space,
                               p_exp env e2]

                          
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