parser.mly 33.2 KB
Newer Older
1 2
/**************************************************************************/
/*                                                                        */
3
/*  Copyright (C) 2010-2011                                               */
4 5 6
/*    François Bobot                                                      */
/*    Jean-Christophe Filliâtre                                           */
/*    Claude Marché                                                       */
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
7
/*    Andrei Paskevich                                                    */
8 9 10 11 12 13 14 15 16 17 18
/*                                                                        */
/*  This software is free software; you can redistribute it and/or        */
/*  modify it under the terms of the GNU Library General Public           */
/*  License version 2.1, with the special exception on linking            */
/*  described in file LICENSE.                                            */
/*                                                                        */
/*  This software is distributed in the hope that it will be useful,      */
/*  but WITHOUT ANY WARRANTY; without even the implied warranty of        */
/*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.                  */
/*                                                                        */
/**************************************************************************/
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
19 20

%{
21
module Incremental = struct
22 23 24 25 26 27 28 29 30 31 32 33
  let env_ref  = ref []
  let lenv_ref = ref []
  let uc_ref   = ref []

  let ref_get  ref = List.hd !ref
  let ref_tail ref = List.tl !ref
  let ref_drop ref = ref := ref_tail ref
  let ref_pop  ref = let v = ref_get ref in ref_drop ref; v

  let ref_push ref v = ref := v :: !ref
  let ref_set  ref v = ref := v :: ref_tail ref

34
  let open_logic_file env =
35
    ref_push env_ref env; ref_push lenv_ref Util.Mstr.empty
36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56

  let close_logic_file () =
    ref_drop env_ref; ref_pop lenv_ref

  let open_theory id =
    ref_push uc_ref (Theory.create_theory (Denv.create_user_id id))

  let close_theory loc =
    let uc = ref_pop uc_ref in
    ref_set lenv_ref (Typing.close_theory loc (ref_get lenv_ref) uc)

  let open_namespace () =
    ref_set uc_ref (Theory.open_namespace (ref_get uc_ref))

  let close_namespace loc import name =
    ref_set uc_ref (Typing.close_namespace loc import name (ref_get uc_ref))

  let new_decl d =
    let env = ref_get env_ref in let lenv = ref_get lenv_ref in
    ref_set uc_ref (Typing.add_decl env lenv (ref_get uc_ref) d)
end
57

Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
58 59 60 61
  open Ptree
  open Parsing

  let loc () = (symbol_start_pos (), symbol_end_pos ())
62 63
  let floc () = Loc.extract (loc ())

Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
64
  let loc_i i = (rhs_start_pos i, rhs_end_pos i)
65
  let floc_i i = Loc.extract (loc_i i)
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
66
  let loc_ij i j = (rhs_start_pos i, rhs_end_pos j)
67
  let floc_ij i j = Loc.extract (loc_ij i j)
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
68 69

  let mk_ppl loc d = { pp_loc = loc; pp_desc = d }
70 71
  let mk_pp d = mk_ppl (floc ()) d
  let mk_pp_i i d = mk_ppl (floc_i i) d
72

73
  let mk_pat p = { pat_loc = floc (); pat_desc = p }
Andrei Paskevich's avatar
Andrei Paskevich committed
74

75
  let infix_ppl loc a i b = mk_ppl loc (PPbinop (a, i, b))
76
  let infix_pp a i b = infix_ppl (floc ()) a i b
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
77

78
  let prefix_ppl loc p a = mk_ppl loc (PPunop (p, a))
79
  let prefix_pp p a = prefix_ppl (floc ()) p a
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
80

81
  let infix  s = "infix "  ^ s
82
  let prefix s = "prefix " ^ s
83
  let mixfix s = "mixfix " ^ s
84

85 86
  let quote id = { id with id = "'" ^ id.id }

87 88 89 90
  let mk_id id loc = { id = id; id_lab = []; id_loc = loc }

  let add_lab id l = { id with id_lab = l }

91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106
  let mk_l_prefix op e1 =
    let id = mk_id (prefix op) (floc_i 1) in
    mk_pp (PPapp (Qident id, [e1]))

  let mk_l_infix e1 op e2 =
    let id = mk_id (infix op) (floc_i 2) in
    mk_pp (PPinfix (e1, id, e2))

  let mk_l_mixfix2 op e1 e2 =
    let id = mk_id (mixfix op) (floc_i 2) in
    mk_pp (PPapp (Qident id, [e1;e2]))

  let mk_l_mixfix3 op e1 e2 e3 =
    let id = mk_id (mixfix op) (floc_i 2) in
    mk_pp (PPapp (Qident id, [e1;e2;e3]))

107 108 109 110 111
  let () = Exn_printer.register
    (fun fmt exn -> match exn with
      | Parsing.Parse_error -> Format.fprintf fmt "syntax error"
      | _ -> raise exn
    )
112

113 114
  let mk_expr d = { expr_loc = floc (); expr_desc = d }
  let mk_expr_i i d = { expr_loc = floc_i i; expr_desc = d }
115 116 117 118 119 120 121

  let cast_body c ((p,e,q) as t) = match c with
    | None -> t
    | Some pt -> p, { e with expr_desc = Ecast (e, pt) }, q

  let rec mk_apply f = function
    | [] ->
122
        assert false
123
    | [a] ->
124
        Eapply (f, a)
125
    | a :: l ->
126 127
        let loc = Loc.join f.expr_loc a.expr_loc in
        mk_apply { expr_loc = loc; expr_desc = Eapply (f, a) } l
128 129 130 131 132 133 134

  let mk_apply_id id =
    let e =
      { expr_desc = Eident (Qident id); expr_loc = id.id_loc }
    in
    mk_apply e

135 136
  let mk_mixfix2 op e1 e2 =
    let id = mk_id (mixfix op) (floc_i 2) in
137 138
    mk_expr (mk_apply_id id [e1; e2])

139 140
  let mk_mixfix3 op e1 e2 e3 =
    let id = mk_id (mixfix op) (floc_i 2) in
141 142
    mk_expr (mk_apply_id id [e1; e2; e3])

143
  let mk_infix e1 op e2 =
144
    let id = mk_id (infix op) (floc_i 2) in
145 146 147
    mk_expr (mk_apply_id id [e1; e2])

  let mk_prefix op e1 =
148
    let id = mk_id (prefix op) (floc_i 1) in
149 150
    mk_expr (mk_apply_id id [e1])

151 152
  let exit_exn () = Qident (mk_id "%Exit" (floc ()))
  let id_anonymous () = mk_id "_" (floc ())
153
  let ty_unit () = Tpure (PPTtuple [])
154

155
  let id_lt_nat () = Qident (mk_id "lt_nat" (floc ()))
156 157 158 159 160 161 162 163

  let empty_effect = { pe_reads = []; pe_writes = []; pe_raises = [] }

  let type_c p ty ef q =
    { pc_result_type = ty;
      pc_effect      = ef;
      pc_pre         = p;
      pc_post        = q; }
164

165
  let add_init_mark e =
166
    let init = { id = "Init"; id_lab = []; id_loc = e.expr_loc } in
167
    { e with expr_desc = Emark (init, e) }
168

169 170 171 172 173 174 175 176 177
  let small_integer i =
    try
      match i with
      | Term.IConstDecimal s -> int_of_string s
      | Term.IConstHexa    s -> int_of_string ("0x"^s)
      | Term.IConstOctal   s -> int_of_string ("0o"^s)
      | Term.IConstBinary  s -> int_of_string ("0b"^s)
    with Failure _ -> raise Parsing.Parse_error

Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
178 179
%}

180
/* Tokens */
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
181

182
%token <string> LIDENT UIDENT
183
%token <Ptree.integer_constant> INTEGER
184
%token <string> OP1 OP2 OP3 OP4 OPPREF
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
185 186
%token <Ptree.real_constant> FLOAT
%token <string> STRING
187
%token <Loc.position> POSITION
188 189 190

/* keywords */

Andrei Paskevich's avatar
Andrei Paskevich committed
191 192 193 194
%token AS AXIOM CLONE
%token ELSE END EPSILON EXISTS EXPORT FALSE FORALL FUNCTION
%token GOAL IF IMPORT IN INDUCTIVE LEMMA
%token LET MATCH META NAMESPACE NOT PROP PREDICATE
195
%token THEN THEORY TRUE TYPE USE WITH
196

197 198
/* program keywords */

199 200
%token ABSTRACT ABSURD ANY ASSERT ASSUME BEGIN CHECK DO DONE DOWNTO
%token EXCEPTION FOR
201
%token FUN INVARIANT LOOP MODEL MODULE MUTABLE RAISE
202
%token RAISES READS REC TO TRY VAL VARIANT WHILE WRITES
203

204 205
/* symbols */

Andrei Paskevich's avatar
Andrei Paskevich committed
206
%token AND ARROW
207
%token BAR
208
%token COLON COMMA
209
%token DOT EQUAL FUNC LAMBDA LTGT
210
%token LEFTPAR LEFTPAR_STAR_RIGHTPAR LEFTREC LEFTSQ
211
%token LARROW LRARROW
Andrei Paskevich's avatar
Andrei Paskevich committed
212
%token OR PRED QUOTE
213
%token RIGHTPAR RIGHTREC RIGHTSQ
Andrei Paskevich's avatar
Andrei Paskevich committed
214
%token UNDERSCORE
215 216 217

%token EOF

218 219
/* program symbols */

220
%token AMPAMP BARBAR LEFTBRC RIGHTBRC SEMICOLON
221

Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
222 223
/* Precedences */

224
%nonassoc prec_mark
225 226 227 228 229 230 231 232 233 234
%nonassoc prec_post
%nonassoc BAR

%nonassoc prec_triple
%nonassoc prec_simple

%nonassoc IN
%right SEMICOLON
%nonassoc prec_no_else
%nonassoc DOT ELSE
235
%nonassoc prec_named
236
%nonassoc COLON
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
237

Andrei Paskevich's avatar
Andrei Paskevich committed
238
%right ARROW LRARROW
239 240
%right OR BARBAR
%right AND AMPAMP
Andrei Paskevich's avatar
Andrei Paskevich committed
241
%nonassoc NOT
242
%left EQUAL LTGT OP1
243 244
%nonassoc LARROW
%nonassoc RIGHTSQ    /* stronger than <- for e1[e2 <- e3] */
245
%left OP2
246
%left OP3
247
%left OP4
248
%nonassoc prec_prefix_op
249
%left prec_app
250 251
%nonassoc LEFTSQ
%nonassoc OPPREF
252

Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
253 254
/* Entry points */

255 256
%type <Env.env -> unit> pre_logic_file
%start pre_logic_file
257
%type <Theory.theory Util.Mstr.t> logic_file
258
%start logic_file
259 260
%type <Ptree.program_file> program_file
%start program_file
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
261 262
%%

263 264 265 266
pre_logic_file:
| /* epsilon */  { Incremental.open_logic_file }
;

267
logic_file:
268
| list0_theory EOF  { Incremental.close_logic_file () }
269 270 271
;

/* File, theory, namespace */
272

273 274 275
list0_theory:
| /* epsilon */         { () }
| theory list0_theory   { () }
276 277
;

278
theory_head:
279
| THEORY uident labels  { Incremental.open_theory (add_lab $2 $3) }
280 281
;

282
theory:
283
| theory_head list0_decl END  { Incremental.close_theory (floc_i 1) }
284 285
;

286
list0_decl:
287 288 289 290 291 292
| /* epsilon */        { () }
| new_decl list0_decl  { () }
;

new_decl:
| decl
293
   { Incremental.new_decl $1 }
294
| namespace_head namespace_import namespace_name list0_decl END
295
   { Incremental.close_namespace (floc_i 3) $2 $3 }
296 297
;

298
namespace_head:
299
| NAMESPACE  { Incremental.open_namespace () }
300 301 302 303 304 305 306 307 308 309 310 311 312 313
;

namespace_import:
| /* epsilon */  { false }
| IMPORT         { true }
;

namespace_name:
| uident      { Some $1 }
| UNDERSCORE  { None }
;

/* Declaration */

314
decl:
315 316
| TYPE list1_type_decl
    { TypeDecl $2 }
Andrei Paskevich's avatar
Andrei Paskevich committed
317 318 319
| FUNCTION list1_logic_decl_function
    { LogicDecl $2 }
| PREDICATE list1_logic_decl_predicate
320 321 322
    { LogicDecl $2 }
| INDUCTIVE list1_inductive_decl
    { IndDecl $2 }
323
| AXIOM ident labels COLON lexpr
324
    { PropDecl (floc (), Kaxiom, add_lab $2 $3, $5) }
325
| LEMMA ident labels COLON lexpr
326
    { PropDecl (floc (), Klemma, add_lab $2 $3, $5) }
327
| GOAL ident labels COLON lexpr
328
    { PropDecl (floc (), Kgoal, add_lab $2 $3, $5) }
329
| USE use
330
    { UseClone (floc (), $2, None) }
331
| CLONE use clone_subst
332
    { UseClone (floc (), $2, Some $3) }
333
| META ident list1_meta_arg_sep_comma
334
    { Meta (floc (), $2, $3) }
335
| META STRING list1_meta_arg_sep_comma
336
    { Meta (floc (), mk_id $2 (floc_i 2), $3) }
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
337 338
;

339 340 341 342 343 344 345 346 347
/* Use and clone */

use:
| imp_exp tqualid
    { { use_theory = $2; use_as = None; use_imp_exp = $1 } }
| imp_exp tqualid AS uident
    { { use_theory = $2; use_as = Some (Some $4); use_imp_exp = $1 } }
| imp_exp tqualid AS UNDERSCORE
    { { use_theory = $2; use_as = Some None; use_imp_exp = $1 } }
348 349
;

350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366
imp_exp:
| IMPORT        { Import }
| EXPORT        { Export }
| /* epsilon */ { Nothing }
;

clone_subst:
| /* epsilon */          { [] }
| WITH list1_comma_subst { $2 }
;

list1_comma_subst:
| subst                         { [$1] }
| subst COMMA list1_comma_subst { $1 :: $3 }
;

subst:
Andrei Paskevich's avatar
Andrei Paskevich committed
367 368
| NAMESPACE ns     EQUAL ns     { CSns   ($2, $4) }
| TYPE      qualid EQUAL qualid { CStsym ($2, $4) }
369 370
| FUNCTION  qualid EQUAL qualid { CSfsym ($2, $4) }
| PREDICATE qualid EQUAL qualid { CSpsym ($2, $4) }
Andrei Paskevich's avatar
Andrei Paskevich committed
371 372
| LEMMA     qualid              { CSlemma $2 }
| GOAL      qualid              { CSgoal  $2 }
373 374
;

375 376 377 378 379
ns:
| uqualid { Some $1 }
| DOT     { None }
;

380 381 382 383 384 385 386 387
/* Meta args */

list1_meta_arg_sep_comma:
| meta_arg                                { [$1] }
| meta_arg COMMA list1_meta_arg_sep_comma { $1 :: $3 }
;

meta_arg:
Andrei Paskevich's avatar
Andrei Paskevich committed
388
| TYPE      qualid { PMAts  $2 }
389 390
| FUNCTION  qualid { PMAfs  $2 }
| PREDICATE qualid { PMAps  $2 }
Andrei Paskevich's avatar
Andrei Paskevich committed
391 392
| PROP      qualid { PMApr  $2 }
| STRING           { PMAstr $1 }
393
| INTEGER          { PMAint (small_integer $1) }
394 395
;

396 397 398
/* Type declarations */

list1_type_decl:
399 400
| type_decl                       { [$1] }
| type_decl WITH list1_type_decl  { $1 :: $3 }
401 402 403
;

type_decl:
404
| lident labels type_args typedefn
405 406 407
  { let model, def = $4 in
    { td_loc = floc (); td_ident = add_lab $1 $2;
      td_params = $3; td_model = model; td_def = def } }
408 409
;

410
type_args:
411 412
| /* epsilon */             { [] }
| type_var labels type_args { add_lab $1 $2 :: $3 }
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
413 414 415
;

typedefn:
416 417 418 419 420 421 422 423 424 425
| /* epsilon */                 { false, TDabstract }
| equal_model primitive_type    { $1, TDalias $2 }
| equal_model typecases         { $1, TDalgebraic $2 }
| equal_model BAR typecases     { $1, TDalgebraic $3 }
| equal_model record_type       { $1, TDrecord $2 }
;

equal_model:
| EQUAL { false }
| MODEL { true }
426 427 428
;

record_type:
Andrei Paskevich's avatar
Andrei Paskevich committed
429
| LEFTREC list1_record_field opt_semicolon RIGHTREC { List.rev $2 }
430 431 432 433
;

list1_record_field:
| record_field                              { [$1] }
434
| list1_record_field SEMICOLON record_field { $3 :: $1 }
435 436 437
;

record_field:
438
| opt_mutable lident labels COLON primitive_type
439
   { floc (), $1, add_lab $2 $3, $5 }
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
440 441 442 443 444 445 446 447
;

typecases:
| typecase                { [$1] }
| typecase BAR typecases  { $1::$3 }
;

typecase:
448
| uident labels params   { (floc (), add_lab $1 $2, $3) }
449 450 451 452
;

/* Logic declarations */

Andrei Paskevich's avatar
Andrei Paskevich committed
453 454 455 456 457 458 459 460 461 462
list1_logic_decl_function:
| logic_decl_function                        { [$1] }
| logic_decl_function WITH list1_logic_decl  { $1 :: $3 }
;

list1_logic_decl_predicate:
| logic_decl_predicate                        { [$1] }
| logic_decl_predicate WITH list1_logic_decl  { $1 :: $3 }
;

463
list1_logic_decl:
464 465
| logic_decl                        { [$1] }
| logic_decl WITH list1_logic_decl  { $1 :: $3 }
466 467
;

Andrei Paskevich's avatar
Andrei Paskevich committed
468 469 470 471 472 473 474 475 476 477 478 479
logic_decl_function:
| lident_rich labels params COLON primitive_type logic_def_option
  { { ld_loc = floc (); ld_ident = add_lab $1 $2;
      ld_params = $3; ld_type = Some $5; ld_def = $6 } }
;

logic_decl_predicate:
| lident_rich labels params logic_def_option
  { { ld_loc = floc (); ld_ident = add_lab $1 $2;
      ld_params = $3; ld_type = None; ld_def = $4 } }
;

480
logic_decl:
481
| lident_rich labels params logic_type_option logic_def_option
482
  { { ld_loc = floc (); ld_ident = add_lab $1 $2;
483
      ld_params = $3; ld_type = $4; ld_def = $5 } }
484 485 486 487 488 489 490 491 492 493
;

logic_type_option:
| /* epsilon */        { None }
| COLON primitive_type { Some $2 }
;

logic_def_option:
| /* epsilon */ { None }
| EQUAL lexpr   { Some $2 }
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
494 495
;

496 497 498
/* Inductive declarations */

list1_inductive_decl:
499 500
| inductive_decl                            { [$1] }
| inductive_decl WITH list1_inductive_decl  { $1 :: $3 }
501 502 503
;

inductive_decl:
504
| lident_rich labels params inddefn
505
  { { in_loc = floc (); in_ident = add_lab $1 $2;
506
      in_params = $3; in_def = $4 } }
Andrei Paskevich's avatar
Andrei Paskevich committed
507
;
508

Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
509 510 511 512 513 514 515 516 517 518 519
inddefn:
| /* epsilon */       { [] }
| EQUAL bar_ indcases { $3 }
;

indcases:
| indcase               { [$1] }
| indcase BAR indcases  { $1::$3 }
;

indcase:
520
| ident labels COLON lexpr { (floc (), add_lab $1 $2, $4) }
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
521 522
;

523 524 525 526 527 528 529 530
/* Type expressions */

primitive_type:
| primitive_type_arg           { $1 }
| lqualid primitive_type_args  { PPTtyapp ($2, $1) }
;

primitive_type_non_lident:
531 532
| primitive_type_arg_non_lident           { $1 }
| uqualid DOT lident primitive_type_args  { PPTtyapp ($4, Qdot ($1, $3)) }
533 534 535 536 537 538 539 540
;

primitive_type_args:
| primitive_type_arg                      { [$1] }
| primitive_type_arg primitive_type_args  { $1 :: $2 }
;

primitive_type_arg:
541
| lident                         { PPTtyapp ([], Qident $1) }
542 543 544 545
| primitive_type_arg_non_lident  { $1 }
;

primitive_type_arg_non_lident:
546 547
| uqualid DOT lident
   { PPTtyapp ([], Qdot ($1, $3)) }
548 549 550 551
| type_var
   { PPTtyvar $1 }
| LEFTPAR primitive_type COMMA list1_primitive_type_sep_comma RIGHTPAR
   { PPTtuple ($2 :: $4) }
552 553 554 555 556 557
| LEFTPAR RIGHTPAR
   { PPTtuple [] }
| LEFTPAR primitive_type RIGHTPAR
   { $2 }
;

Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
558 559 560 561 562
list1_primitive_type_sep_comma:
| primitive_type                                      { [$1] }
| primitive_type COMMA list1_primitive_type_sep_comma { $1 :: $3 }
;

563
type_var:
564
| QUOTE lident { $2 }
565 566
;

567 568
/* Logic expressions */

Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
569
lexpr:
570
| lexpr ARROW lexpr
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
571
   { infix_pp $1 PPimplies $3 }
572
| lexpr LRARROW lexpr
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
573
   { infix_pp $1 PPiff $3 }
574
| lexpr OR lexpr
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
575
   { infix_pp $1 PPor $3 }
576
| lexpr BARBAR lexpr
577
   { mk_pp (PPnamed (Lstr Term.asym_label, infix_pp $1 PPor $3)) }
578
| lexpr AND lexpr
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
579
   { infix_pp $1 PPand $3 }
580
| lexpr AMPAMP lexpr
581
   { mk_pp (PPnamed (Lstr Term.asym_label, infix_pp $1 PPand $3)) }
582
| NOT lexpr
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
583
   { prefix_pp PPnot $2 }
584
| lexpr EQUAL lexpr
585
   { mk_l_infix $1 "=" $3 }
586
| lexpr LTGT lexpr
587
   { prefix_pp PPnot (mk_l_infix $1 "=" $3) }
588
| lexpr OP1 lexpr
589
   { mk_l_infix $1 $2 $3 }
590
| lexpr OP2 lexpr
591
   { mk_l_infix $1 $2 $3 }
592
| lexpr OP3 lexpr
593
   { mk_l_infix $1 $2 $3 }
594
| lexpr OP4 lexpr
595
   { mk_l_infix $1 $2 $3 }
596
| prefix_op lexpr %prec prec_prefix_op
597
   { mk_l_prefix $1 $2 }
598 599
| qualid list1_lexpr_arg
   { mk_pp (PPapp ($1, $2)) }
600
| IF lexpr THEN lexpr ELSE lexpr
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
601
   { mk_pp (PPif ($2, $4, $6)) }
Andrei Paskevich's avatar
Andrei Paskevich committed
602 603
| quant list1_param_var_sep_comma triggers DOT lexpr
   { mk_pp (PPquant ($1, $2, $3, $5)) }
604 605
| label lexpr %prec prec_named
   { mk_pp (PPnamed ($1, $2)) }
606
| LET pattern EQUAL lexpr IN lexpr
607 608
   { match $2.pat_desc with
       | PPpvar id -> mk_pp (PPlet (id, $4, $6))
Andrei Paskevich's avatar
Andrei Paskevich committed
609 610
       | _ -> mk_pp (PPmatch ($4, [$2, $6])) }
| MATCH lexpr WITH bar_ match_cases END
611
   { mk_pp (PPmatch ($2, $5)) }
Andrei Paskevich's avatar
Andrei Paskevich committed
612 613
| MATCH lexpr COMMA list1_lexpr_sep_comma WITH bar_ match_cases END
   { mk_pp (PPmatch (mk_pp (PPtuple ($2::$4)), $7)) }
614 615
| EPSILON lident labels COLON primitive_type DOT lexpr
   { mk_pp (PPeps (add_lab $2 $3, $5, $7)) }
616
| lexpr COLON primitive_type
617
   { mk_pp (PPcast ($1, $3)) }
618
| lexpr_arg
619 620 621
   { $1 }
;

622 623 624 625 626 627 628 629 630
list1_field_value:
| field_value                             { [$1] }
| list1_field_value SEMICOLON field_value { $3 :: $1 }
;

field_value:
| lqualid EQUAL lexpr { $1, $3 }
;

631 632 633
list1_lexpr_arg:
| lexpr_arg                 { [$1] }
| lexpr_arg list1_lexpr_arg { $1::$2 }
Andrei Paskevich's avatar
Andrei Paskevich committed
634
;
635

636
constant:
637 638
| INTEGER   { Term.ConstInt $1 }
| FLOAT     { Term.ConstReal $1 }
639 640
;

641
lexpr_arg:
642 643 644 645 646 647
| qualid            { mk_pp (PPvar $1) }
| constant          { mk_pp (PPconst $1) }
| TRUE              { mk_pp PPtrue }
| FALSE             { mk_pp PPfalse }
| OPPREF lexpr_arg  { mk_l_prefix $1 $2 }
| lexpr_sub         { $1 }
648
| QUOTE uident      { mk_pp (PPvar (Qident (quote $2))) }
649 650 651
;

lexpr_dot:
652 653 654
| lqualid_copy      { mk_pp (PPvar $1) }
| OPPREF lexpr_dot  { mk_l_prefix $1 $2 }
| lexpr_sub         { $1 }
655 656 657
;

lexpr_sub:
658
| lexpr_dot DOT lqualid_rich
659
   { mk_pp (PPapp ($3, [$1])) }
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
660 661
| LEFTPAR lexpr RIGHTPAR
   { $2 }
662 663 664 665
| LEFTPAR RIGHTPAR
   { mk_pp (PPtuple []) }
| LEFTPAR lexpr COMMA list1_lexpr_sep_comma RIGHTPAR
   { mk_pp (PPtuple ($2 :: $4)) }
666 667
| LEFTREC list1_field_value opt_semicolon RIGHTREC
   { mk_pp (PPrecord (List.rev $2)) }
Andrei Paskevich's avatar
Andrei Paskevich committed
668 669
| LEFTREC lexpr_arg WITH list1_field_value opt_semicolon RIGHTREC
   { mk_pp (PPupdate ($2, List.rev $4)) }
670
| lexpr_arg LEFTSQ lexpr RIGHTSQ
671
   { mk_l_mixfix2 "[]" $1 $3 }
672
| lexpr_arg LEFTSQ lexpr LARROW lexpr RIGHTSQ
673
   { mk_l_mixfix3 "[<-]" $1 $3 $5 }
Andrei Paskevich's avatar
Andrei Paskevich committed
674
;
675

Andrei Paskevich's avatar
Andrei Paskevich committed
676 677 678 679
quant:
| FORALL  { PPforall }
| EXISTS  { PPexists }
| LAMBDA  { PPlambda }
680 681
| FUNC    { PPfunc }
| PRED    { PPpred }
Andrei Paskevich's avatar
Andrei Paskevich committed
682 683
;

684
/* Triggers */
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
685

686 687 688 689
triggers:
| /* epsilon */                         { [] }
| LEFTSQ list1_trigger_sep_bar RIGHTSQ  { $2 }
;
690

691 692 693 694 695 696 697 698 699 700 701 702 703 704 705
list1_trigger_sep_bar:
| trigger                           { [$1] }
| trigger BAR list1_trigger_sep_bar { $1 :: $3 }
;

trigger:
| list1_lexpr_sep_comma { $1 }
;

list1_lexpr_sep_comma:
| lexpr                             { [$1] }
| lexpr COMMA list1_lexpr_sep_comma { $1 :: $3 }
;

/* Match expressions */
706

Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
707 708 709 710 711 712
match_cases:
| match_case                  { [$1] }
| match_case BAR match_cases  { $1::$3 }
;

match_case:
Andrei Paskevich's avatar
Andrei Paskevich committed
713
| pattern ARROW lexpr   { ($1,$3) }
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
714 715 716
;

pattern:
Andrei Paskevich's avatar
Andrei Paskevich committed
717 718 719 720 721 722 723 724 725 726 727 728 729 730 731
| pat_conj              { $1 }
| pat_conj BAR pattern  { mk_pat (PPpor ($1, $3)) }
;

pat_conj:
| pat_uni                      { $1 }
| pat_uni COMMA list1_pat_uni  { mk_pat (PPptuple ($1::$3)) }
;

list1_pat_uni:
| pat_uni                      { [$1] }
| pat_uni COMMA list1_pat_uni  { $1::$3 }
;

pat_uni:
732 733 734
| pat_arg                   { $1 }
| uqualid list1_pat_arg     { mk_pat (PPpapp ($1, $2)) }
| pat_uni AS lident labels  { mk_pat (PPpas ($1, add_lab $3 $4)) }
Andrei Paskevich's avatar
Andrei Paskevich committed
735
;
736

737
list1_pat_arg:
Andrei Paskevich's avatar
Andrei Paskevich committed
738 739 740
| pat_arg                { [$1] }
| pat_arg list1_pat_arg  { $1::$2 }
;
741

742
pat_arg:
Andrei Paskevich's avatar
Andrei Paskevich committed
743
| UNDERSCORE                { mk_pat (PPpwild) }
744
| lident labels             { mk_pat (PPpvar (add_lab $1 $2)) }
Andrei Paskevich's avatar
Andrei Paskevich committed
745 746 747
| uqualid                   { mk_pat (PPpapp ($1, [])) }
| LEFTPAR RIGHTPAR          { mk_pat (PPptuple []) }
| LEFTPAR pattern RIGHTPAR  { $2 }
Andrei Paskevich's avatar
Andrei Paskevich committed
748 749 750 751 752 753 754 755 756 757
| LEFTREC pfields RIGHTREC  { mk_pat (PPprec $2) }
;

pfields:
| pat_field opt_semicolon       { [$1] }
| pat_field SEMICOLON pfields   { $1::$3 }
;

pat_field:
| lqualid EQUAL pattern   { ($1, $3) }
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
758 759
;

760
/* Parameters */
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
761

762 763 764
params:
| /* epsilon */   { [] }
| param params    { $1 @ $2 }
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
765 766
;

767 768 769 770 771 772 773 774 775 776 777 778 779
param:
| LEFTPAR param_var RIGHTPAR
   { $2 }
| LEFTPAR param_type RIGHTPAR
   { [None, $2] }
| LEFTPAR param_type COMMA list1_primitive_type_sep_comma RIGHTPAR
   { [None, PPTtuple ($2::$4)] }
| LEFTPAR RIGHTPAR
   { [None, PPTtuple []] }
| type_var
   { [None, PPTtyvar $1] }
| lqualid
   { [None, PPTtyapp ([], $1)] }
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
780 781
;

782 783 784 785 786 787 788 789
param_type:
| lident param_type_cont
   { PPTtyapp ($2, Qident $1) }
| lident list1_lident param_type_cont
   { let id2ty i = PPTtyapp ([], Qident i) in
     PPTtyapp (List.map id2ty $2 @ $3, Qident $1) }
| primitive_type_non_lident
   { $1 }
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
790 791
;

792 793 794 795
param_type_cont:
| /* epsilon */                                      { [] }
| primitive_type_arg_non_lident                      { [$1] }
| primitive_type_arg_non_lident primitive_type_args  { $1 :: $2 }
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
796 797
;

798 799 800
list1_param_var_sep_comma:
| param_var                                  { $1 }
| param_var COMMA list1_param_var_sep_comma  { $1 @ $3 }
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
801 802
;

803 804 805
param_var:
| list1_lident COLON primitive_type
   { List.map (fun id -> (Some id, $3)) $1 }
806 807 808 809 810 811
| list1_lident label labels list0_lident_labels COLON primitive_type
   { let l = match List.rev $1 with
       | i :: l -> add_lab i ($2 :: $3) :: l
       | [] -> assert false
     in
     List.map (fun id -> (Some id, $6)) (List.rev_append l $4) }
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
812 813
;

814
list1_lident:
815 816
| lident               { [$1] }
| lident list1_lident  { $1 :: $2 }
817 818
;

819 820 821 822 823
list0_lident_labels:
| /* epsilon */                      { [] }
| lident labels list0_lident_labels  { add_lab $1 $2 :: $3 }
;

824 825 826 827 828
/* Idents */

ident:
| uident { $1 }
| lident { $1 }
Jean-Christophe Filliâtre's avatar
Jean-Christophe Filliâtre committed
829 830
;

831 832 833 834 835 836 837 838 839 840 841 842 843 844 845
uident:
| UIDENT          { mk_id $1 (floc ()) }
;

lident:
| LIDENT          { mk_id $1 (floc ()) }
| lident_keyword  { mk_id $1 (floc ()) }
;

lident_keyword:
| MODEL           { "model" }
;

/* Idents + symbolic operations' names */

846 847 848
ident_rich:
| uident      { $1 }
| lident_rich { $1 }
849 850
;

851
lident_rich:
852 853 854
| lident                      { $1 }
| LEFTPAR lident_op RIGHTPAR  { mk_id $2 (floc ()) }
| LEFTPAR_STAR_RIGHTPAR       { mk_id (infix "*") (floc ()) }
855 856
;

857
lident_op:
858 859 860 861 862 863
| prefix_op             { infix $1 }
| prefix_op UNDERSCORE  { prefix $1 }
| EQUAL                 { infix "=" }
| OPPREF                { prefix $1 }
| LEFTSQ RIGHTSQ        { mixfix "[]" }
| LEFTSQ LARROW RIGHTSQ { mixfix "[<-]" }
864 865
;

866
prefix_op:
867 868 869 870 871 872
| OP1   { $1 }
| OP2   { $1 }
| OP3   { $1 }
| OP4   { $1 }
;

873
/* Qualified idents */
874

875 876 877
qualid:
| ident_rich              { Qident $1 }
| uqualid DOT ident_rich  { Qdot ($1, $3) }
878 879
;

880 881 882
lqualid_rich:
| lident_rich             { Qident $1 }
| uqualid DOT lident_rich { Qdot ($1, $3) }
883 884 885
;

lqualid:
886 887
| lident              { Qident $1 }
| uqualid DOT lident  { Qdot ($1, $3) }
888 889
;

890 891 892 893
/* copy of lqualid to avoid yacc conflicts */
lqualid_copy:
| lident              { Qident $1 }
| uqualid DOT lident  { Qdot ($1, $3) }
894 895
;

896 897 898
uqualid:
| uident              { Qident $1 }
| uqualid DOT uident  { Qdot ($1, $3) }
899 900
;

901 902
/* Theory/Module names */

903 904 905
tqualid:
| uident                { Qident $1 }
| any_qualid DOT uident { Qdot ($1, $3) }
Andrei Paskevich's avatar
Andrei Paskevich committed
906
;
907

908 909 910
any_qualid:
| ident                 { Qident $1 }
| any_qualid DOT ident  { Qdot ($1, $3) }
Andrei Paskevich's avatar
Andrei Paskevich committed
911
;
912 913 914

/* Misc */

915
label:
916 917
| STRING    { Lstr $1 }
| POSITION  { Lpos $1 }
918 919
;

920 921 922 923 924
labels:
| /* epsilon */ { [] }
| label labels  { $1 :: $2 }
;

925 926 927
bar_:
| /* epsilon */ { () }
| BAR           { () }
928 929
;

930 931 932
/****************************************************************************/

program_file:
933
| list0_theory_or_module_ EOF { $1 }
934 935
;

936
list0_theory_or_module_:
937 938
| /* epsilon */
   { [] }
939
| list1_theory_or_module_
940 941 942
   { $1 }
;

943 944
list1_theory_or_module_:
| theory_or_module_
945
   { [$1] }
946
| theory_or_module_ list1_theory_or_module_
947 948 949
   { $1 :: $2 }
;

950 951
theory_or_module_:
| THEORY uident labels list0_full_decl END
952
   { Ptheory { pth_name = add_lab $2 $3; pth_decl = $4; } }
953
| MODULE uident labels list0_program_decl END
954
   { Pmodule { mod_name = add_lab $2 $3; mod_decl = $4; } }
955 956
;

957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972
list0_full_decl:
| /* epsilon */
   { [] }
| list1_full_decl
   { $1 }
;

list1_full_decl:
| full_decl
   { [$1] }
| full_decl list1_full_decl
   { $1 :: $2 }
;

full_decl:
| NAMESPACE namespace_import namespace_name list0_full_decl END
973
   { Dnamespace (floc_i 3, $3, $2, $4) }
974 975 976 977
| decl
   { Dlogic $1 }
;

978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994
list0_program_decl:
| /* epsilon */
   { [] }
| list1_program_decl
   { $1 }
;

list1_program_decl:
| program_decl
   { [$1] }
| program_decl list1_program_decl
   { $1 :: $2 }
;

program_decl:
| decl
    { Dlogic $1 }
995
| LET lident_rich labels list1_type_v_binder opt_cast EQUAL triple
996
    { Dlet (add_lab $2 $3, mk_expr_i 7 (Efun ($4, cast_body $5 $7))) }
997
| LET lident_rich labels EQUAL FUN list1_type_v_binder ARROW triple
998 999 1000
    { Dlet (add_lab $2 $3, mk_expr_i 8 (Efun ($6, $8))) }
| LET REC list1_recfun_sep_and
    { Dletrec $3 }
1001
| VAL lident_rich_pgm labels COLON type_v
1002
    { Dparam (add_lab $2 $3, $5) }
1003
| VAL lident_rich_pgm labels list1_type_v_param COLON type_c
1004 1005
    { let tv = Tarrow ($4, $6) in
      Dparam (add_lab $2 $3, tv) }
1006 1007 1008 1009 1010 1011
| EXCEPTION uident labels
    { Dexn (add_lab $2 $3, None) }
| EXCEPTION uident labels pure_type
    { Dexn (add_lab $2 $3, Some $4) }
| USE use_module
    { $2 }
1012
| NAMESPACE namespace_import namespace_name list0_program_decl END
1013
    { Dnamespace (floc_i 3, $3, $2, $4) }
1014 1015
;

1016 1017 1018 1019
lident_rich_pgm:
| lident_rich
    { $1 }
| LEFTPAR LEFTSQ RIGHTSQ LARROW RIGHTPAR
1020
    { mk_id (mixfix "[]<-") (floc ()) }
1021 1022 1023 1024 1025 1026 1027 1028 1029 1030
;

opt_mutable:
| /* epsilon */ { false }
| MUTABLE       { true  }
;

opt_semicolon:
| /* epsilon */ {}
| SEMICOLON     {}
1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045
;

use_module:
| imp_exp MODULE tqualid
    { Duse ($3, $1, None) }
| imp_exp MODULE tqualid AS uident
    { Duse ($3, $1, Some $5) }
;

list1_recfun_sep_and:
| recfun                           { [ $1 ] }
| recfun WITH list1_recfun_sep_and { $1 :: $3 }
;

recfun:
1046
| lident_rich labels list1_type_v_binder opt_cast opt_variant EQUAL triple
1047 1048 1049 1050
   { add_lab $1 $2, $3, $5, cast_body $4 $7 }
;

expr:
1051
| expr_arg %prec prec_simple
1052 1053 1054 1055 1056
   { $1 }
| expr EQUAL expr
   { mk_infix $1 "=" $3 }
| expr LTGT expr
   { let t = mk_infix $1 "=" $3 in
1057
     mk_expr (mk_apply_id { id = "notb"; id_lab = []; id_loc = floc () } [t]) }
1058
| expr LARROW expr
1059
    { match $1.expr_desc with
1060 1061 1062
        | Eapply (e11, e12) -> begin match e11.expr_desc with
            | Eident x ->
                mk_expr (Eassign (e12, x, $3))
1063
            | Eapply ({ expr_desc = Eident (Qident x) }, e11)
Andrei Paskevich's avatar
Andrei Paskevich committed
1064
            when x.id = mixfix "[]" ->
1065 1066 1067 1068 1069 1070
                mk_mixfix3 "[]<-" e11 e12 $3
            | _ ->
                raise Parsing.Parse_error
          end
        | _ ->
            raise Parsing.Parse_error
1071
    }
1072 1073 1074 1075 1076 1077 1078 1079
| expr OP1 expr
   { mk_infix $1 $2 $3 }
| expr OP2 expr
   { mk_infix $1 $2 $3 }
| expr OP3 expr
   { mk_infix $1 $2 $3 }
| expr OP4 expr
   { mk_infix $1 $2 $3 }
1080
| NOT expr %prec prec_prefix_op
1081
   { mk_expr (mk_apply_id { id = "notb"; id_lab = []; id_loc = floc () } [$2]) }
1082
| prefix_op expr %prec prec_prefix_op
1083
   { mk_prefix $1 $2 }
1084
| expr_arg list1_expr_arg %prec prec_app
1085 1086 1087 1088
   { mk_expr (mk_apply $1 $2) }
| IF expr THEN expr ELSE expr
   { mk_expr (Eif ($2, $4, $6)) }
| IF expr THEN expr %prec prec_no_else
1089
   { mk_expr (Eif ($2, $4, mk_expr (Etuple []))) }
1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102