-
Notifications
You must be signed in to change notification settings - Fork 125
/
pass_MongoAccessGeneration.ml
772 lines (728 loc) · 31.8 KB
/
pass_MongoAccessGeneration.ml
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
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
(* shorthands *)
module Q = QmlAst
module C = QmlAstCons.TypedExpr
module Api = struct
let some = Opacapi.some
module Types = Opacapi.Types
module Db = Opacapi.DbMongo
module DbSet = Opacapi.DbSet
end
module DbAst = QmlAst.Db
module DbSchema = QmlDbGen.Schema
module List = BaseList
module Format = BaseFormat
type db_access = {
engines : Ident.t StringMap.t
}
let label = Annot.nolabel "MongoAccessGeneration"
module Generator = struct
let ty_is_const gamma ty =
match QmlTypesUtils.Inspect.follow_alias_noopt_private gamma ty with
| Q.TypeConst _ -> true
| _ -> false
let ty_is_sum gamma ty =
match QmlTypesUtils.Inspect.follow_alias_noopt_private gamma ty with
| Q.TypeSum _ -> true
| _ -> false
let ty_database = Q.TypeVar (QmlTypeVars.TypeVar.next ())
let open_database gamma annotmap name host port =
let annotmap, name = C.string annotmap name in
let annotmap, host =
match host with
| None -> C.none annotmap gamma
| Some host ->
let annotmap, host = C.string annotmap host in
C.some annotmap gamma host
in
let annotmap, port =
match port with
| None -> C.none annotmap gamma
| Some port ->
let annotmap, port = C.int annotmap port in
C.some annotmap gamma port
in
let annotmap, open_ = OpaMapToIdent.typed_val ~label Api.Db.open_ annotmap gamma in
let annotmap, open_ = C.apply gamma annotmap open_ [name; host; port] in
(annotmap, open_)
let node_to_dbexpr _gamma annotmap node =
C.ident annotmap node.DbSchema.database.DbSchema.ident ty_database
let opa2doc gamma annotmap expr
?(ty=QmlAnnotMap.find_ty (Annot.annot (QmlAst.Label.expr expr)) annotmap)
()
=
let (annotmap, opa2doc) =
OpaMapToIdent.typed_val ~label ~ty:[ty] Api.DbSet.opa2doc annotmap gamma
in
C.apply gamma annotmap opa2doc [expr]
let add_to_document gamma annotmap name expr
?(ty=QmlAnnotMap.find_ty (Annot.annot (QmlAst.Label.expr expr)) annotmap)
doc =
let (annotmap, add_to_document) =
OpaMapToIdent.typed_val ~label ~ty:[ty] Api.DbSet.add_to_document annotmap gamma
in
let (annotmap, name) = C.string annotmap name in
let (annotmap, opaty) =
Pass_ExplicitInstantiation.ty_to_opaty
~memoize:false
~val_:OpaMapToIdent.val_ ~side:`server
annotmap gamma ty in
C.apply gamma annotmap add_to_document [doc; name; expr; opaty]
let expr_of_strpath gamma annotmap strpath =
let annotmap, path = List.fold_left
(fun (annotmap, acc) key ->
let annotmap, e = C.string annotmap key in
annotmap, e::acc
) (annotmap, []) strpath
in
C.rev_list (annotmap, gamma) path
let rec prepare_query query =
match query with
| DbAst.QEq _
| DbAst.QGt _
| DbAst.QLt _
| DbAst.QGte _
| DbAst.QLte _
| DbAst.QNe _
| DbAst.QMod _
| DbAst.QIn _ -> query
| DbAst.QFlds flds -> DbAst.QFlds (List.map (fun (f, q) -> (f, prepare_query q)) flds)
| DbAst.QAnd (q1, q2) -> DbAst.QAnd (prepare_query q1, prepare_query q2)
| DbAst.QOr (q1, q2) -> DbAst.QOr (prepare_query q1, prepare_query q2)
| DbAst.QNot DbAst.QEq e -> DbAst.QNe e
| DbAst.QNot DbAst.QGt e -> DbAst.QLte e
| DbAst.QNot DbAst.QLt e -> DbAst.QGte e
| DbAst.QNot DbAst.QGte e -> DbAst.QLt e
| DbAst.QNot DbAst.QLte e -> DbAst.QGt e
| DbAst.QNot DbAst.QNe e -> DbAst.QEq e
| DbAst.QNot (DbAst.QIn _ | DbAst.QMod _) -> query
| DbAst.QNot (DbAst.QNot query) -> query
| DbAst.QNot (DbAst.QFlds flds) ->
DbAst.QFlds (List.map (fun (f, q) -> (f, prepare_query (DbAst.QNot q))) flds)
| DbAst.QNot (DbAst.QOr (q1, q2)) ->
DbAst.QAnd (prepare_query (DbAst.QNot q1), prepare_query (DbAst.QNot q2))
| DbAst.QNot (DbAst.QAnd (q1, q2)) ->
DbAst.QOr (prepare_query (DbAst.QNot q1), prepare_query (DbAst.QNot q2))
let empty_query gamma annotmap = C.list (annotmap, gamma) []
let query_to_expr gamma annotmap query =
match query with
| None -> empty_query gamma annotmap
| Some (_todo, query) ->
let query = prepare_query query in
let rec aux annotmap query =
match query with
| DbAst.QEq e ->
let (annotmap, e) = C.shallow_copy annotmap e in
opa2doc gamma annotmap e ()
| DbAst.QMod _ -> assert false
| DbAst.QGt e | DbAst.QLt e | DbAst.QGte e | DbAst.QLte e | DbAst.QNe e | DbAst.QIn e ->
let name =
match query with
| DbAst.QGt _ -> "$gt"
| DbAst.QLt _ -> "$lt"
| DbAst.QGte _ -> "$gte"
| DbAst.QLte _ -> "$lte"
| DbAst.QNe _ -> "$ne"
| DbAst.QIn _ -> "$in"
| _ -> assert false
in
let annotmap, query = empty_query gamma annotmap in
add_to_document gamma annotmap name e query
| DbAst.QFlds flds ->
List.fold_left
(fun (annotmap, acc) (fld, query) ->
let name = BaseFormat.sprintf "%a" QmlAst.Db.pp_field fld in
match query with
| DbAst.QEq e -> add_to_document gamma annotmap name e acc
| _ ->
let annotmap, query = aux annotmap query in
add_to_document gamma annotmap name query acc
)
(empty_query gamma annotmap)
flds
| DbAst.QNot query ->
let annotmap, query = aux annotmap query in
let annotmap, empty = empty_query gamma annotmap in
add_to_document gamma annotmap "$not" query empty
| DbAst.QAnd (q1, q2)
| DbAst.QOr (q1, q2) ->
let name =
match query with
| DbAst.QAnd _ -> "$and"
| DbAst.QOr _ -> "$or"
| _ -> assert false
in
let annotmap, q1 = aux annotmap q1 in
let annotmap, q2 = aux annotmap q2 in
let ty =
QmlAnnotMap.find_ty (Annot.annot (QmlAst.Label.expr q1)) annotmap
in
let annotmap, query = C.list ~ty (annotmap, gamma) [q1; q2] in
let annotmap, empty = empty_query gamma annotmap in
add_to_document gamma annotmap name query empty
in aux annotmap query
let query_add_order gamma annotmap order query =
match order with
| None -> annotmap, query
| Some order ->
let annotmap, eorder =
List.fold_left
(fun (annotmap, acc) (fld, expr) ->
let name = BaseFormat.sprintf "%a" QmlAst.Db.pp_field fld in
let annotmap, expr =
let annotmap, up = C.int annotmap 1 in
let annotmap, pup =
let annotmap, any = QmlAstCons.TypedPat.any annotmap in
QmlAstCons.TypedPat.record annotmap ["up", any] in
let annotmap, down = C.int annotmap (-1) in
let annotmap, pdown =
let annotmap, any = QmlAstCons.TypedPat.any annotmap in
QmlAstCons.TypedPat.record annotmap ["down", any] in
C.match_ annotmap expr [(pup, up); (pdown, down)]
in add_to_document gamma annotmap name expr acc)
(empty_query gamma annotmap) order
in
let annotmap, metaquery = empty_query gamma annotmap in
let annotmap, metaquery = add_to_document gamma annotmap "$query" query metaquery in
add_to_document gamma annotmap "$orderby" eorder metaquery
let update_to_expr ?(set=true) gamma annotmap = function
| DbAst.UExpr e ->
let annotmap, uexpr = opa2doc gamma annotmap e () in
if set then
let annotmap, empty = C.list (annotmap, gamma) [] in
add_to_document gamma annotmap "$set" uexpr empty
else annotmap, uexpr
| update ->
let addset = set in
let rec collect fld (inc, set, other, annotmap) update =
let rfld = if fld = "" then "value" else fld in
match update with
| DbAst.UExpr e -> (inc, (rfld, e)::set, other, annotmap)
| DbAst.UIncr i -> ((rfld, i)::inc, set, other, annotmap)
| DbAst.UFlds fields ->
List.fold_left
(fun (inc, set, other, annotmap) (f, u) ->
let fld =
let dot = match fld with | "" -> "" | _ -> "." in
BaseFormat.sprintf "%s%s%a" fld dot QmlAst.Db.pp_field f in
collect fld (inc, set, other, annotmap) u)
(inc, set, other, annotmap) fields
| DbAst.UAppend e -> (inc, set, (rfld, "$push", e)::other, annotmap)
| DbAst.UAppendAll e -> (inc, set, (rfld, "$pushAll", e)::other, annotmap)
| DbAst.UPrepend _e -> assert false
| DbAst.UPrependAll _e -> assert false
| DbAst.UPop ->
let annotmap, e = C.int annotmap (-1) in
(inc, set, (rfld, "$pop", e)::other, annotmap)
| DbAst.UShift ->
let annotmap, e = C.int annotmap 1 in
(inc, set, (rfld, "$pop", e)::other, annotmap)
in let (inc, set, other, annotmap) = collect "" ([], [], [], annotmap) update in
let annotmap, uexpr = C.list (annotmap, gamma) [] in
let annotmap, uexpr =
match inc with
| [] -> annotmap, uexpr
| _ ->
let ty = Q.TypeConst Q.TyInt in
let rec aux ((annotmap, doc) as acc) inc =
match inc with
| [] -> acc
| (field, value)::q ->
let (annotmap, value) = C.int annotmap value in
aux (add_to_document gamma annotmap field value ~ty doc) q
in
let annotmap, iexpr = aux (C.list (annotmap, gamma) []) inc in
add_to_document gamma annotmap "$inc" iexpr uexpr
in
let annotmap, uexpr =
match set with
| [] -> annotmap, uexpr
| ["", e] -> add_to_document gamma annotmap "value" e uexpr
| _ ->
let rec aux ((annotmap, doc) as acc) set =
match set with
| [] -> acc
| (field, value)::q ->
aux (add_to_document gamma annotmap field value doc) q
in
if addset then (
let annotmap, sexpr = aux (C.list (annotmap, gamma) []) set in
add_to_document gamma annotmap "$set" sexpr uexpr
) else (
aux (C.list (annotmap, gamma) []) set
)
in
let annotmap, uexpr =
List.fold_left
(fun (annotmap, uexpr) (fld, name, request) ->
let annotmap, empty = C.list (annotmap, gamma) [] in
let annotmap, request = add_to_document gamma annotmap fld request empty in
add_to_document gamma annotmap name request uexpr
) (annotmap, uexpr) other
in annotmap, uexpr
let dot_update gamma annotmap field update =
match update with
| DbAst.UExpr e ->
let annotmap, e = C.dot gamma annotmap e field in
Some (annotmap, DbAst.UExpr e)
| DbAst.UFlds fields ->
List.find_map
(fun (fields, u) -> match fields with
| t::q when t = field -> Some (annotmap, DbAst.UFlds [q, u])
| _ -> None)
fields
| _ -> None
let get_node ~context schema path =
try
DbSchema.get_node schema path
with Base.NotImplemented s ->
QmlError.error context
"Can't generates mongo access because : %s is not yet implemented"
s
let get_read_map setkind uniq annotmap gamma =
let dataty = QmlAstCons.Type.next_var () in
match setkind, uniq with
| DbSchema.Map (_kty, dty), true ->
OpaMapToIdent.typed_val ~label ~ty:[dataty; dty] Api.DbSet.map_to_uniq annotmap gamma
| DbSchema.Map (_kty, dty), false ->
OpaMapToIdent.typed_val ~label ~ty:[dataty; dty] Api.DbSet.map_to_uniq annotmap gamma
| DbSchema.DbSet dty, true ->
OpaMapToIdent.typed_val ~label ~ty:[dty] Api.DbSet.set_to_uniq annotmap gamma
| DbSchema.DbSet dty, false ->
OpaMapToIdent.typed_val ~label ~ty:[dty] Api.some annotmap gamma
let rec compose_path ~context gamma annotmap schema dbname kind subs =
let subkind =
match kind with
| DbAst.Update _
| DbAst.Ref -> DbAst.Ref
| _ -> DbAst.Valpath
in
let annotmap, elements =
C.list_map
(fun annotmap (field, sub) ->
let (annotmap, path) = string_path ~context gamma annotmap schema (subkind, dbname::sub) in
let (annotmap, field) = C.string annotmap field in
C.opa_tuple_2 (annotmap, gamma) (field, path)
) (annotmap, gamma) subs
in
let builder, pathty =
match subkind with
| DbAst.Ref -> Api.Db.build_rpath_compose, Api.Types.DbMongo.ref_path
| DbAst.Valpath -> Api.Db.build_vpath_compose, Api.Types.DbMongo.val_path
| _ -> assert false
in
(annotmap, [elements], builder, pathty)
and string_path ~context gamma annotmap schema (kind, strpath) =
let node =
let strpath = List.map (fun k -> DbAst.FldKey k) strpath in
get_node ~context schema strpath in
match node.DbSchema.kind with
| DbSchema.SetAccess (setkind, path, query) ->
dbset_path ~context gamma annotmap (kind, path) setkind node query
| _ ->
let dataty = node.DbSchema.ty in
let dbname = node.DbSchema.database.DbSchema.name in
match kind with
| DbAst.Update u ->
begin match node.DbSchema.kind with
| DbSchema.Plain ->
let annotmap, path = expr_of_strpath gamma annotmap strpath in
let annotmap, uexpr =
if ty_is_sum gamma dataty then (
let annotmap, uexpr = update_to_expr ~set:false gamma annotmap u in
let annotmap, _id =
C.string annotmap (Format.sprintf "/%a" (Format.pp_list "/" Format.pp_print_string) strpath)
in
add_to_document gamma annotmap "_id" _id uexpr
) else (
let u =
if ty_is_const gamma dataty then DbAst.UFlds [["value"], u]
else u
in
update_to_expr gamma annotmap u)
in
let annotmap, database = node_to_dbexpr gamma annotmap node in
let annotmap, update =
OpaMapToIdent.typed_val ~label Api.Db.update_path annotmap gamma in
C.apply gamma annotmap update [database; path; uexpr]
| DbSchema.Partial (sum, rpath, partial) ->
if sum then QmlError.serror context "Update inside a sum path is forbidden";
let annotmap, path = expr_of_strpath gamma annotmap (dbname::rpath) in
let annotmap, uexpr = update_to_expr gamma annotmap (DbAst.UFlds [partial, u]) in
let annotmap, database = node_to_dbexpr gamma annotmap node in
let annotmap, update =
OpaMapToIdent.typed_val ~label Api.Db.update_path annotmap gamma in
C.apply gamma annotmap update [database; path; uexpr]
| DbSchema.Compose c ->
(* TODO - Warning non atocmic update ??*)
let annotmap, sub =
List.fold_left_filter_map
(fun annotmap (field, subpath) ->
match dot_update gamma annotmap field u with
| Some (annotmap, subu) ->
let annotmap, sube =
string_path ~context gamma annotmap schema
(DbAst.Update subu, dbname::subpath)
in (annotmap, Some (Ident.next "_", sube))
| None -> annotmap, None
) annotmap c
in
let annotmap, unit = C.unit annotmap in
C.letin annotmap sub unit
| _ -> assert false
end
| _ ->
(* All other kind access are factorized bellow *)
let annotmap, path = expr_of_strpath gamma annotmap strpath in
let (annotmap, args, builder, pathty) =
match node.DbSchema.kind with
| DbSchema.Compose subs ->
compose_path ~context gamma annotmap schema dbname kind subs
| DbSchema.Partial (sum, rpath, partial) ->
let annotmap, partial = C.list_map
(fun annotmap fragment -> C.string annotmap fragment)
(annotmap, gamma) partial
in let annotmap, rpath = C.list_map
(fun annotmap fragment -> C.string annotmap fragment)
(annotmap, gamma) (dbname::rpath)
in begin match kind with
| DbAst.Ref ->
if sum then QmlError.serror context "Update inside a sum path is forbidden";
annotmap, [rpath; partial], Api.Db.build_rpath_sub, Api.Types.DbMongo.ref_path
| _ ->
annotmap, [rpath; partial], Api.Db.build_vpath_sub, Api.Types.DbMongo.val_path
end
| DbSchema.Plain ->
let annotmap, const = C.bool (annotmap, gamma) (ty_is_const gamma dataty) in
(match kind with
| DbAst.Update _
| DbAst.Ref -> (annotmap, [const], Api.Db.build_rpath, Api.Types.DbMongo.ref_path)
| _ -> (annotmap, [const], Api.Db.build_vpath, Api.Types.DbMongo.val_path))
| _ -> assert false
in
let (annotmap, build) =
OpaMapToIdent.typed_val ~label ~ty:[dataty] builder annotmap gamma in
let (annotmap, database) = node_to_dbexpr gamma annotmap node in
let ty = OpaMapToIdent.specialized_typ ~ty:[dataty] pathty gamma in
let (annotmap, default) = node.DbSchema.default annotmap in
let (annotmap, path) = C.apply ~ty gamma annotmap build
([database; path; default] @ args) in
let again =
match kind with
| DbAst.Default -> Some Api.Db.read
| DbAst.Option -> Some Api.Db.option
| _ -> None
in
let (annotmap, path) =
match again with
| None -> (annotmap, path)
| Some again ->
let (annotmap, again) =
OpaMapToIdent.typed_val ~label ~ty:[QmlAstCons.Type.next_var (); dataty]
again annotmap gamma in
C.apply gamma annotmap again [path]
in annotmap, path
and dbset_path ~context gamma annotmap (kind, path) setkind node query0 =
let ty = node.DbSchema.ty in
let annotmap, skip, limit, query, order, uniq =
match query0 with
| None ->
let annotmap, limit = C.int annotmap 0 in
let annotmap, skip = C.int annotmap 0 in
annotmap, skip, limit, None, None, false
| Some ((uniq, (query, opt)) as _x) ->
let annotmap, limit =
match opt.DbAst.limit with
| None -> C.int annotmap 0
| Some i -> annotmap, i
in let annotmap, skip =
match opt.DbAst.skip with
| None -> C.int annotmap 0
| Some i -> annotmap, i
in let query = Some (
match setkind with
| DbSchema.Map _ -> uniq, DbAst.QFlds [(["_id"], query)]
| _ -> uniq, query
)
in
annotmap, skip, limit, query, opt.DbAst.sort, uniq
in
match query0, kind with
| None, DbAst.Update DbAst.UExpr e ->
(* Just reuse ref path on collections if 0 query *)
let annotmap, refpath =
dbset_path ~context gamma annotmap (DbAst.Ref, path) setkind node query0 in
let annotmap, more = C.dot gamma annotmap refpath "more" in
let annotmap, write = C.dot gamma annotmap more "write" in
let annotmap, apply = C.apply gamma annotmap write [e] in
let annotmap, ignore =
let i = Ident.next "_ignore" in
let annotmap, v = C.cheap_void annotmap gamma in
C.letin annotmap [(i, apply)] v
in annotmap, ignore
| _ ->
(* DbSet.build *)
let (annotmap, build, query, args) =
match kind with
| DbAst.Default
| DbAst.Valpath
| DbAst.Ref
| DbAst.Option ->
let dataty =
match setkind with
| DbSchema.DbSet ty -> ty
| DbSchema.Map _ -> QmlAstCons.Type.next_var ()
(* Dummy type variable, should never use*)
in
(* query *)
let annotmap, query = query_to_expr gamma annotmap query in
let annotmap, query = query_add_order gamma annotmap order query in
let annotmap, default = node.DbSchema.default annotmap in
begin match kind with
| DbAst.Default | DbAst.Option ->
let annotmap, build =
OpaMapToIdent.typed_val ~label ~ty:[dataty] Api.DbSet.build annotmap gamma in
(annotmap, build, query, [default; skip; limit])
| DbAst.Valpath ->
let annotmap, build =
OpaMapToIdent.typed_val ~label ~ty:[dataty; dataty] Api.DbSet.build_vpath annotmap gamma
in
let annotmap, read_map = get_read_map setkind uniq annotmap gamma in
(annotmap, build, query, [default; skip; limit; read_map])
| DbAst.Ref ->
let annotmap, read_map = get_read_map setkind uniq annotmap gamma in
let build_rpath, wty, (annotmap, write_map) =
match setkind, uniq with
| DbSchema.DbSet dty, true ->
let iarg = Ident.next "data" in
let annotmap, earg = C.ident annotmap iarg dty in
let annotmap, doc = opa2doc ~ty:dty gamma annotmap earg () in
Api.DbSet.build_rpath, dty, C.lambda annotmap [(iarg, dty)] doc
| DbSchema.Map (_kty, dty), true ->
let iarg = Ident.next "data" in
let annotmap, earg = C.ident annotmap iarg dty in
let annotmap, doc = opa2doc ~ty:dty gamma annotmap earg () in
Api.DbSet.build_rpath, dty, C.lambda annotmap [(iarg, dty)] doc
| DbSchema.DbSet dty, false ->
QmlError.warning ~wclass:WarningClass.dbgen_mongo
context "Reference path on database set is not advised";
Api.DbSet.build_rpath_collection, dataty,
OpaMapToIdent.typed_val ~label ~ty:[dty]
Api.DbSet.set_to_docs annotmap gamma
| DbSchema.Map (kty, dty), false ->
QmlError.warning ~wclass:WarningClass.dbgen_mongo
context "Reference path on database map is not advised";
Api.DbSet.build_rpath_collection, dataty,
OpaMapToIdent.typed_val ~label ~ty:[kty; dty]
Api.DbSet.map_to_docs annotmap gamma
in
let annotmap, build =
OpaMapToIdent.typed_val ~label ~ty:[wty; dataty] build_rpath annotmap gamma
in
(annotmap, build, query, [default; skip; limit; read_map; write_map])
| _ -> assert false
end
| DbAst.Update u ->
let (annotmap, query) = query_to_expr gamma annotmap query in
let (annotmap, update) =
let u =
(* Hack : When map value is simple, adding the "value" field *)
match setkind with
| DbSchema.Map (_, tyval) when ty_is_const gamma tyval -> DbAst.UFlds [["value"], u]
| _ -> u
in
update_to_expr gamma annotmap u
in
let (annotmap, build) =
OpaMapToIdent.typed_val ~label Api.DbSet.update annotmap gamma
in
(annotmap, build, query, [update])
in
(* database *)
let (annotmap, database) = node_to_dbexpr gamma annotmap node in
(* path : list(string) *)
let (annotmap, path) =
let (annotmap, path) = List.fold_left
(fun (annotmap, acc) key ->
let annotmap, e = C.string annotmap key in
annotmap, e::acc
) (annotmap, []) path
in
C.rev_list (annotmap, gamma) path in
(* dbset = DbSet.build(database, path, query, ...) *)
let (annotmap, set) =
C.apply gamma annotmap build
([database; path; query] @ args) in
(* Final convert *)
let (annotmap, set) =
match kind with
| DbAst.Default | DbAst.Option ->
(match setkind, uniq with
| DbSchema.DbSet ty, false ->
let setident = Ident.next "mongoset" in
let annotmap, identset =
let tyset = OpaMapToIdent.specialized_typ ~ty:[ty]
Api.Types.DbMongoSet.engine gamma in
C.ident annotmap setident tyset
in
let annotmap, iterator =
let annotmap, iterator =
OpaMapToIdent.typed_val ~label ~ty:[ty]
Api.DbSet.iterator annotmap gamma
in
C.apply ~ty gamma annotmap iterator [identset]
in
let annotmap, genset =
let annotmap, identset = C.copy annotmap identset in
C.record annotmap [("iter", iterator); ("engine", identset)]
in
C.letin annotmap [setident, set] genset
| DbSchema.Map (keyty, dataty), false ->
let (annotmap, to_map) =
OpaMapToIdent.typed_val ~label
~ty:[QmlAstCons.Type.next_var (); keyty; dataty]
Api.DbSet.to_map annotmap gamma in
let (annotmap, map) =
C.apply ~ty gamma annotmap to_map [set] in
begin match kind with
| DbAst.Option ->
(* TODO - Actually we consider map already exists *)
C.some annotmap gamma map
| _ -> (annotmap, map)
end
| DbSchema.DbSet dataty, true ->
let (annotmap, set_to_uniq) =
let set_to_uniq = match kind with
| DbAst.Default -> Api.DbSet.set_to_uniq_def
| DbAst.Option -> Api.DbSet.set_to_uniq
| _ -> assert false
in
OpaMapToIdent.typed_val ~label ~ty:[dataty] set_to_uniq annotmap gamma in
C.apply ~ty gamma annotmap set_to_uniq [set]
| DbSchema.Map (_keyty, dataty), true ->
let (annotmap, map_to_uniq) =
let map_to_uniq = match kind with
| DbAst.Default -> Api.DbSet.map_to_uniq_def
| DbAst.Option -> Api.DbSet.map_to_uniq
| _ -> assert false
in
OpaMapToIdent.typed_val ~label ~ty:[QmlAstCons.Type.next_var (); dataty]
map_to_uniq annotmap gamma in
C.apply ~ty gamma annotmap map_to_uniq [set])
| _ -> (annotmap, set)
in
(annotmap, set)
let path ~context gamma annotmap schema (label, dbpath, kind) =
let node = get_node ~context schema dbpath in
match node.DbSchema.database.DbSchema.options.DbAst.backend with
| `mongo -> (
let annotmap, mongopath =
match node.DbSchema.kind with
| DbSchema.SetAccess (setkind, path, query) ->
dbset_path ~context gamma annotmap (kind, path) setkind node query
| _ ->
let strpath = List.map
(function
| DbAst.FldKey k -> k
| _ -> assert false
) dbpath in
string_path ~context gamma annotmap schema (kind, strpath)
in
match kind with
| DbAst.Ref | DbAst.Valpath ->
let annotmap, p2p =
OpaMapToIdent.typed_val ~label
~ty:[QmlAstCons.Type.next_var (); node.DbSchema.ty]
Api.Db.path_to_path annotmap gamma in
C.apply gamma annotmap p2p [mongopath]
| _ -> annotmap, mongopath
)
| `db3 -> annotmap, Q.Path (label, dbpath, kind)
let indexes gamma annotmap _schema node rpath lidx =
let (annotmap, database) =
node_to_dbexpr gamma annotmap node in
let (annotmap, build) =
OpaMapToIdent.typed_val ~label Api.DbSet.indexes annotmap gamma in
let (annotmap, path) =
C.rev_list_map
(fun annotmap fragment -> C.string annotmap fragment)
(annotmap, gamma) rpath
in
let (annotmap, lidx) =
List.fold_left_map
(fun annotmap idx ->
C.list_map
(fun annotmap fragment -> C.string annotmap fragment)
(annotmap, gamma) idx)
annotmap lidx
in
let (annotmap, lidx) = C.list (annotmap, gamma) lidx
in C.apply gamma annotmap build [database; path; lidx]
end
let init_database gamma annotmap schema =
List.fold_left
(fun (annotmap, newvals) database ->
if database.DbSchema.options.DbAst.backend = `mongo then
let ident = database.DbSchema.ident in
let name = database.DbSchema.name in
let (annotmap, open_) = Generator.open_database gamma annotmap name None None in
(annotmap, (Q.NewVal (label, [ident, open_]))::newvals)
else (annotmap, newvals)
)
(annotmap, []) (DbSchema.get_db_declaration schema)
let clean_code gamma annotmap schema code =
List.fold_left_filter_map
(fun annotmap -> function
| Q.Database _ -> annotmap, None
| Q.NewDbValue (_label, DbAst.Db_TypeDecl (p, _ty)) ->
let fake_path =
match p with
| DbAst.Decl_fld k::_ -> [DbAst.FldKey k]
| _ -> []
in
begin match p with
| (DbAst.Decl_fld _)::p ->
let rec aux rpath p =
match p with
| (DbAst.Decl_set lidx)::[] ->
let (annotmap, init) =
let fake_node = DbSchema.get_node schema fake_path in
Generator.indexes gamma annotmap schema fake_node rpath lidx
in
let id = Ident.next "_index_setup" in
annotmap, Some (Q.NewVal (label, [id, init]))
| (DbAst.Decl_set _lidx)::_ -> assert false
| (DbAst.Decl_fld str)::p -> aux (str::rpath) p
| [] -> annotmap, None
| _ -> assert false
in aux [] p
| _ -> annotmap, None
end
| Q.NewDbValue _ -> annotmap, None
| elt -> annotmap, Some elt)
annotmap code
let process_path gamma annotmap schema code =
let fmap tra annotmap = function
| Q.Path (label, path, kind) as expr ->
let context = QmlError.Context.annoted_expr annotmap expr in
let annotmap, result =
Generator.path ~context gamma annotmap schema (label, path, kind) in
tra annotmap result
| e -> tra annotmap e
in
QmlAstWalk.CodeExpr.fold_map
(fun annotmap expr ->
let annotmap, expr = QmlAstWalk.Expr.traverse_foldmap fmap annotmap expr in
fmap (fun a e -> a,e) annotmap expr)
annotmap code
let process_code ~stdlib_gamma gamma annotmap schema code =
match ObjectFiles.compilation_mode () with
| `init -> (annotmap, code)
| _ ->
let gamma = QmlTypes.Env.unsafe_append stdlib_gamma gamma in
let (annotmap, code) = clean_code gamma annotmap schema code in
let (annotmap, code) =
let (annotmap, vals) = init_database stdlib_gamma annotmap schema in
(annotmap, vals@code)
in
let (annotmap, code) = process_path gamma annotmap schema code in
(annotmap, code)