Mercurial > urweb

annotate src/elab_env.sml @ 684:f0224c7f12bb

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Expunging nullable fields
author Adam Chlipala <adamc@hcoop.net>
date Sun, 29 Mar 2009 14:13:50 -0400
parents 81573f62d6c3
children 70cbdcf5989b
rev   line source
adamc@674 1 (* Copyright (c) 2008-2009, Adam Chlipala
adamc@2 2 * All rights reserved.
adamc@2 3 *
adamc@2 4 * Redistribution and use in source and binary forms, with or without
adamc@2 5 * modification, are permitted provided that the following conditions are met:
adamc@2 6 *
adamc@2 7 * - Redistributions of source code must retain the above copyright notice,
adamc@2 8 * this list of conditions and the following disclaimer.
adamc@2 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@2 10 * this list of conditions and the following disclaimer in the documentation
adamc@2 11 * and/or other materials provided with the distribution.
adamc@2 12 * - The names of contributors may not be used to endorse or promote products
adamc@2 13 * derived from this software without specific prior written permission.
adamc@2 14 *
adamc@2 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@2 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@2 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@2 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@2 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@2 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@2 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@2 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@2 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@2 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@2 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@2 26 *)
adamc@2 27
adamc@2 28 structure ElabEnv :> ELAB_ENV = struct
adamc@2 29
adamc@2 30 open Elab
adamc@2 31
adamc@13 32 structure U = ElabUtil
adamc@13 33
adamc@2 34 structure IM = IntBinaryMap
adamc@2 35 structure SM = BinaryMapFn(struct
adamc@2 36 type ord_key = string
adamc@2 37 val compare = String.compare
adamc@2 38 end)
adamc@2 39
adamc@2 40 exception UnboundRel of int
adamc@2 41 exception UnboundNamed of int
adamc@2 42
adamc@13 43
adamc@13 44 (* AST utility functions *)
adamc@13 45
adamc@13 46 exception SynUnif
adamc@13 47
adamc@623 48 val liftKindInKind =
adamc@623 49 U.Kind.mapB {kind = fn bound => fn k =>
adamc@623 50 case k of
adamc@623 51 KRel xn =>
adamc@623 52 if xn < bound then
adamc@623 53 k
adamc@623 54 else
adamc@623 55 KRel (xn + 1)
adamc@623 56 | _ => k,
adamc@623 57 bind = fn (bound, _) => bound + 1}
adamc@623 58
adamc@623 59 val liftKindInCon =
adamc@623 60 U.Con.mapB {kind = fn bound => fn k =>
adamc@623 61 case k of
adamc@623 62 KRel xn =>
adamc@623 63 if xn < bound then
adamc@623 64 k
adamc@623 65 else
adamc@623 66 KRel (xn + 1)
adamc@623 67 | _ => k,
adamc@623 68 con = fn _ => fn c => c,
adamc@623 69 bind = fn (bound, U.Con.RelK _) => bound + 1
adamc@623 70 | (bound, _) => bound}
adamc@623 71
adamc@13 72 val liftConInCon =
adamc@623 73 U.Con.mapB {kind = fn _ => fn k => k,
adamc@13 74 con = fn bound => fn c =>
adamc@13 75 case c of
adamc@16 76 CRel xn =>
adamc@13 77 if xn < bound then
adamc@13 78 c
adamc@13 79 else
adamc@16 80 CRel (xn + 1)
adamc@17 81 (*| CUnif _ => raise SynUnif*)
adamc@13 82 | _ => c,
adamc@623 83 bind = fn (bound, U.Con.RelC _) => bound + 1
adamc@13 84 | (bound, _) => bound}
adamc@13 85
adamc@13 86 val lift = liftConInCon 0
adamc@13 87
adamc@623 88 val liftKindInExp =
adamc@623 89 U.Exp.mapB {kind = fn bound => fn k =>
adamc@623 90 case k of
adamc@623 91 KRel xn =>
adamc@623 92 if xn < bound then
adamc@623 93 k
adamc@623 94 else
adamc@623 95 KRel (xn + 1)
adamc@623 96 | _ => k,
adamc@623 97 con = fn _ => fn c => c,
adamc@623 98 exp = fn _ => fn e => e,
adamc@623 99 bind = fn (bound, U.Exp.RelK _) => bound + 1
adamc@623 100 | (bound, _) => bound}
adamc@623 101
adamc@448 102 val liftConInExp =
adamc@623 103 U.Exp.mapB {kind = fn _ => fn k => k,
adamc@448 104 con = fn bound => fn c =>
adamc@448 105 case c of
adamc@448 106 CRel xn =>
adamc@448 107 if xn < bound then
adamc@448 108 c
adamc@448 109 else
adamc@448 110 CRel (xn + 1)
adamc@448 111 | _ => c,
adamc@448 112 exp = fn _ => fn e => e,
adamc@448 113 bind = fn (bound, U.Exp.RelC _) => bound + 1
adamc@448 114 | (bound, _) => bound}
adamc@448 115
adamc@211 116 val liftExpInExp =
adamc@623 117 U.Exp.mapB {kind = fn _ => fn k => k,
adamc@211 118 con = fn _ => fn c => c,
adamc@211 119 exp = fn bound => fn e =>
adamc@211 120 case e of
adamc@211 121 ERel xn =>
adamc@211 122 if xn < bound then
adamc@211 123 e
adamc@211 124 else
adamc@211 125 ERel (xn + 1)
adamc@211 126 | _ => e,
adamc@211 127 bind = fn (bound, U.Exp.RelE _) => bound + 1
adamc@211 128 | (bound, _) => bound}
adamc@211 129
adamc@211 130
adamc@211 131 val liftExp = liftExpInExp 0
adamc@13 132
adamc@448 133 val subExpInExp =
adamc@623 134 U.Exp.mapB {kind = fn _ => fn k => k,
adamc@448 135 con = fn _ => fn c => c,
adamc@448 136 exp = fn (xn, rep) => fn e =>
adamc@448 137 case e of
adamc@448 138 ERel xn' =>
adamc@448 139 (case Int.compare (xn', xn) of
adamc@448 140 EQUAL => #1 rep
adamc@448 141 | GREATER=> ERel (xn' - 1)
adamc@448 142 | LESS => e)
adamc@448 143 | _ => e,
adamc@448 144 bind = fn ((xn, rep), U.Exp.RelE _) => (xn+1, liftExpInExp 0 rep)
adamc@448 145 | ((xn, rep), U.Exp.RelC _) => (xn, liftConInExp 0 rep)
adamc@448 146 | (ctx, _) => ctx}
adamc@448 147
adamc@13 148 (* Back to environments *)
adamc@13 149
adamc@9 150 datatype 'a var' =
adamc@9 151 Rel' of int * 'a
adamc@9 152 | Named' of int * 'a
adamc@2 153
adamc@9 154 datatype 'a var =
adamc@9 155 NotBound
adamc@9 156 | Rel of int * 'a
adamc@9 157 | Named of int * 'a
adamc@2 158
adamc@191 159 type datatyp = string list * (string * con option) IM.map
adamc@157 160
adamc@211 161 datatype class_name =
adamc@211 162 ClNamed of int
adamc@211 163 | ClProj of int * string list * string
adamc@211 164
adamc@216 165 fun cn2s cn =
adamc@216 166 case cn of
adamc@216 167 ClNamed n => "Named(" ^ Int.toString n ^ ")"
adamc@216 168 | ClProj (m, ms, x) => "Proj(" ^ Int.toString m ^ "," ^ String.concatWith "," ms ^ "," ^ x ^ ")"
adamc@216 169
adamc@211 170 structure CK = struct
adamc@211 171 type ord_key = class_name
adamc@211 172 open Order
adamc@211 173 fun compare x =
adamc@211 174 case x of
adamc@211 175 (ClNamed n1, ClNamed n2) => Int.compare (n1, n2)
adamc@211 176 | (ClNamed _, _) => LESS
adamc@211 177 | (_, ClNamed _) => GREATER
adamc@211 178
adamc@211 179 | (ClProj (m1, ms1, x1), ClProj (m2, ms2, x2)) =>
adamc@211 180 join (Int.compare (m1, m2),
adamc@211 181 fn () => join (joinL String.compare (ms1, ms2),
adamc@211 182 fn () => String.compare (x1, x2)))
adamc@211 183 end
adamc@211 184
adamc@677 185 structure CS = BinarySetFn(CK)
adamc@211 186 structure CM = BinaryMapFn(CK)
adamc@211 187
adamc@211 188 datatype class_key =
adamc@211 189 CkNamed of int
adamc@211 190 | CkRel of int
adamc@211 191 | CkProj of int * string list * string
adamc@467 192 | CkApp of class_key * class_key
adamc@684 193 | CkOther of con
adamc@211 194
adamc@216 195 fun ck2s ck =
adamc@216 196 case ck of
adamc@216 197 CkNamed n => "Named(" ^ Int.toString n ^ ")"
adamc@216 198 | CkRel n => "Rel(" ^ Int.toString n ^ ")"
adamc@216 199 | CkProj (m, ms, x) => "Proj(" ^ Int.toString m ^ "," ^ String.concatWith "," ms ^ "," ^ x ^ ")"
adamc@467 200 | CkApp (ck1, ck2) => "App(" ^ ck2s ck1 ^ ", " ^ ck2s ck2 ^ ")"
adamc@684 201 | CkOther _ => "Other"
adamc@216 202
adamc@674 203 type class_key_n = class_key * int
adamc@674 204
adamc@674 205 fun ckn2s (ck, n) = ck2s ck ^ "[" ^ Int.toString n ^ "]"
adamc@674 206
adamc@216 207 fun cp2s (cn, ck) = "(" ^ cn2s cn ^ "," ^ ck2s ck ^ ")"
adamc@216 208
adamc@211 209 structure KK = struct
adamc@674 210 type ord_key = class_key_n
adamc@211 211 open Order
adamc@674 212 fun compare' x =
adamc@211 213 case x of
adamc@211 214 (CkNamed n1, CkNamed n2) => Int.compare (n1, n2)
adamc@211 215 | (CkNamed _, _) => LESS
adamc@211 216 | (_, CkNamed _) => GREATER
adamc@211 217
adamc@211 218 | (CkRel n1, CkRel n2) => Int.compare (n1, n2)
adamc@211 219 | (CkRel _, _) => LESS
adamc@211 220 | (_, CkRel _) => GREATER
adamc@211 221
adamc@211 222 | (CkProj (m1, ms1, x1), CkProj (m2, ms2, x2)) =>
adamc@211 223 join (Int.compare (m1, m2),
adamc@211 224 fn () => join (joinL String.compare (ms1, ms2),
adamc@211 225 fn () => String.compare (x1, x2)))
adamc@467 226 | (CkProj _, _) => LESS
adamc@467 227 | (_, CkProj _) => GREATER
adamc@467 228
adamc@467 229 | (CkApp (f1, x1), CkApp (f2, x2)) =>
adamc@674 230 join (compare' (f1, f2),
adamc@674 231 fn () => compare' (x1, x2))
adamc@684 232 | (CkApp _, _) => LESS
adamc@684 233 | (_, CkApp _) => GREATER
adamc@684 234
adamc@684 235 | (CkOther _, CkOther _) => EQUAL
adamc@674 236 fun compare ((k1, n1), (k2, n2)) =
adamc@674 237 join (Int.compare (n1, n2),
adamc@674 238 fn () => compare' (k1, k2))
adamc@211 239 end
adamc@211 240
adamc@211 241 structure KM = BinaryMapFn(KK)
adamc@211 242
adamc@675 243 type class = {ground : ((class_name * class_key) list * exp) KM.map,
adamc@675 244 inclusions : exp CM.map}
adamc@675 245 val empty_class = {ground = KM.empty,
adamc@675 246 inclusions = CM.empty}
adamc@211 247
adamc@419 248 fun printClasses cs = (print "Classes:\n";
adamc@675 249 CM.appi (fn (cn, {ground = km, ...} : class) =>
adamc@419 250 (print (cn2s cn ^ ":");
adamc@674 251 KM.appi (fn (ck, _) => print (" " ^ ckn2s ck)) km;
adamc@419 252 print "\n")) cs)
adamc@216 253
adamc@2 254 type env = {
adamc@623 255 renameK : int SM.map,
adamc@623 256 relK : string list,
adamc@623 257
adamc@9 258 renameC : kind var' SM.map,
adamc@2 259 relC : (string * kind) list,
adamc@11 260 namedC : (string * kind * con option) IM.map,
adamc@9 261
adamc@157 262 datatypes : datatyp IM.map,
adamc@191 263 constructors : (datatype_kind * int * string list * con option * int) SM.map,
adamc@157 264
adamc@211 265 classes : class CM.map,
adamc@211 266
adamc@9 267 renameE : con var' SM.map,
adamc@9 268 relE : (string * con) list,
adamc@31 269 namedE : (string * con) IM.map,
adamc@31 270
adamc@31 271 renameSgn : (int * sgn) SM.map,
adamc@31 272 sgn : (string * sgn) IM.map,
adamc@31 273
adamc@31 274 renameStr : (int * sgn) SM.map,
adamc@31 275 str : (string * sgn) IM.map
adamc@2 276 }
adamc@2 277
adamc@2 278 val namedCounter = ref 0
adamc@2 279
adamc@109 280 fun newNamed () =
adamc@109 281 let
adamc@109 282 val r = !namedCounter
adamc@109 283 in
adamc@109 284 namedCounter := r + 1;
adamc@109 285 r
adamc@109 286 end
adamc@109 287
adamc@2 288 val empty = {
adamc@623 289 renameK = SM.empty,
adamc@623 290 relK = [],
adamc@623 291
adamc@2 292 renameC = SM.empty,
adamc@2 293 relC = [],
adamc@9 294 namedC = IM.empty,
adamc@9 295
adamc@157 296 datatypes = IM.empty,
adamc@171 297 constructors = SM.empty,
adamc@157 298
adamc@211 299 classes = CM.empty,
adamc@211 300
adamc@9 301 renameE = SM.empty,
adamc@9 302 relE = [],
adamc@31 303 namedE = IM.empty,
adamc@31 304
adamc@31 305 renameSgn = SM.empty,
adamc@31 306 sgn = IM.empty,
adamc@31 307
adamc@31 308 renameStr = SM.empty,
adamc@31 309 str = IM.empty
adamc@2 310 }
adamc@2 311
adamc@674 312 fun liftClassKey' ck =
adamc@211 313 case ck of
adamc@211 314 CkNamed _ => ck
adamc@211 315 | CkRel n => CkRel (n + 1)
adamc@211 316 | CkProj _ => ck
adamc@674 317 | CkApp (ck1, ck2) => CkApp (liftClassKey' ck1, liftClassKey' ck2)
adamc@684 318 | CkOther c => CkOther (lift c)
adamc@674 319
adamc@674 320 fun liftClassKey (ck, n) = (liftClassKey' ck, n)
adamc@211 321
adamc@623 322 fun pushKRel (env : env) x =
adamc@623 323 let
adamc@623 324 val renameK = SM.map (fn n => n+1) (#renameK env)
adamc@623 325 in
adamc@623 326 {renameK = SM.insert (renameK, x, 0),
adamc@623 327 relK = x :: #relK env,
adamc@623 328
adamc@623 329 renameC = SM.map (fn Rel' (n, k) => Rel' (n, liftKindInKind 0 k)
adamc@623 330 | x => x) (#renameC env),
adamc@623 331 relC = map (fn (x, k) => (x, liftKindInKind 0 k)) (#relC env),
adamc@623 332 namedC = #namedC env,
adamc@623 333
adamc@623 334 datatypes = #datatypes env,
adamc@623 335 constructors = #constructors env,
adamc@623 336
adamc@623 337 classes = #classes env,
adamc@623 338
adamc@623 339 renameE = SM.map (fn Rel' (n, c) => Rel' (n, liftKindInCon 0 c)
adamc@623 340 | Named' (n, c) => Named' (n, c)) (#renameE env),
adamc@623 341 relE = map (fn (x, c) => (x, liftKindInCon 0 c)) (#relE env),
adamc@623 342 namedE = #namedE env,
adamc@623 343
adamc@623 344 renameSgn = #renameSgn env,
adamc@623 345 sgn = #sgn env,
adamc@623 346
adamc@623 347 renameStr = #renameStr env,
adamc@623 348 str = #str env
adamc@623 349 }
adamc@623 350 end
adamc@623 351
adamc@623 352 fun lookupKRel (env : env) n =
adamc@623 353 (List.nth (#relK env, n))
adamc@623 354 handle Subscript => raise UnboundRel n
adamc@623 355
adamc@623 356 fun lookupK (env : env) x = SM.find (#renameK env, x)
adamc@623 357
adamc@2 358 fun pushCRel (env : env) x k =
adamc@2 359 let
adamc@9 360 val renameC = SM.map (fn Rel' (n, k) => Rel' (n+1, k)
adamc@2 361 | x => x) (#renameC env)
adamc@2 362 in
adamc@623 363 {renameK = #renameK env,
adamc@623 364 relK = #relK env,
adamc@623 365
adamc@623 366 renameC = SM.insert (renameC, x, Rel' (0, k)),
adamc@2 367 relC = (x, k) :: #relC env,
adamc@514 368 namedC = #namedC env,
adamc@9 369
adamc@157 370 datatypes = #datatypes env,
adamc@171 371 constructors = #constructors env,
adamc@157 372
adamc@674 373 classes = CM.map (fn class =>
adamc@675 374 {ground = KM.foldli (fn (ck, e, km) =>
adamc@675 375 KM.insert (km, liftClassKey ck, e))
adamc@675 376 KM.empty (#ground class),
adamc@675 377 inclusions = #inclusions class})
adamc@211 378 (#classes env),
adamc@211 379
adamc@328 380 renameE = SM.map (fn Rel' (n, c) => Rel' (n, lift c)
adamc@517 381 | Named' (n, c) => Named' (n, c)) (#renameE env),
adamc@13 382 relE = map (fn (x, c) => (x, lift c)) (#relE env),
adamc@514 383 namedE = #namedE env,
adamc@31 384
adamc@31 385 renameSgn = #renameSgn env,
adamc@31 386 sgn = #sgn env,
adamc@31 387
adamc@31 388 renameStr = #renameStr env,
adamc@31 389 str = #str env
adamc@31 390 }
adamc@2 391 end
adamc@2 392
adamc@2 393 fun lookupCRel (env : env) n =
adamc@2 394 (List.nth (#relC env, n))
adamc@2 395 handle Subscript => raise UnboundRel n
adamc@2 396
adamc@11 397 fun pushCNamedAs (env : env) x n k co =
adamc@623 398 {renameK = #renameK env,
adamc@623 399 relK = #relK env,
adamc@623 400
adamc@623 401 renameC = SM.insert (#renameC env, x, Named' (n, k)),
adamc@5 402 relC = #relC env,
adamc@11 403 namedC = IM.insert (#namedC env, n, (x, k, co)),
adamc@9 404
adamc@157 405 datatypes = #datatypes env,
adamc@171 406 constructors = #constructors env,
adamc@157 407
adamc@211 408 classes = #classes env,
adamc@211 409
adamc@9 410 renameE = #renameE env,
adamc@9 411 relE = #relE env,
adamc@31 412 namedE = #namedE env,
adamc@31 413
adamc@31 414 renameSgn = #renameSgn env,
adamc@31 415 sgn = #sgn env,
adamc@31 416
adamc@31 417 renameStr = #renameStr env,
adamc@31 418 str = #str env}
adamc@5 419
adamc@11 420 fun pushCNamed env x k co =
adamc@2 421 let
adamc@2 422 val n = !namedCounter
adamc@2 423 in
adamc@2 424 namedCounter := n + 1;
adamc@11 425 (pushCNamedAs env x n k co, n)
adamc@2 426 end
adamc@2 427
adamc@2 428 fun lookupCNamed (env : env) n =
adamc@2 429 case IM.find (#namedC env, n) of
adamc@2 430 NONE => raise UnboundNamed n
adamc@2 431 | SOME x => x
adamc@2 432
adamc@2 433 fun lookupC (env : env) x =
adamc@2 434 case SM.find (#renameC env, x) of
adamc@9 435 NONE => NotBound
adamc@9 436 | SOME (Rel' x) => Rel x
adamc@9 437 | SOME (Named' x) => Named x
adamc@9 438
adamc@191 439 fun pushDatatype (env : env) n xs xncs =
adamc@188 440 let
adamc@188 441 val dk = U.classifyDatatype xncs
adamc@188 442 in
adamc@623 443 {renameK = #renameK env,
adamc@623 444 relK = #relK env,
adamc@623 445
adamc@623 446 renameC = #renameC env,
adamc@188 447 relC = #relC env,
adamc@188 448 namedC = #namedC env,
adamc@157 449
adamc@188 450 datatypes = IM.insert (#datatypes env, n,
adamc@191 451 (xs, foldl (fn ((x, n, to), cons) =>
adamc@191 452 IM.insert (cons, n, (x, to))) IM.empty xncs)),
adamc@188 453 constructors = foldl (fn ((x, n', to), cmap) =>
adamc@191 454 SM.insert (cmap, x, (dk, n', xs, to, n)))
adamc@188 455 (#constructors env) xncs,
adamc@157 456
adamc@211 457 classes = #classes env,
adamc@211 458
adamc@188 459 renameE = #renameE env,
adamc@188 460 relE = #relE env,
adamc@188 461 namedE = #namedE env,
adamc@157 462
adamc@188 463 renameSgn = #renameSgn env,
adamc@188 464 sgn = #sgn env,
adamc@157 465
adamc@188 466 renameStr = #renameStr env,
adamc@188 467 str = #str env}
adamc@188 468 end
adamc@157 469
adamc@157 470 fun lookupDatatype (env : env) n =
adamc@157 471 case IM.find (#datatypes env, n) of
adamc@157 472 NONE => raise UnboundNamed n
adamc@157 473 | SOME x => x
adamc@157 474
adamc@191 475 fun lookupDatatypeConstructor (_, dt) n =
adamc@157 476 case IM.find (dt, n) of
adamc@157 477 NONE => raise UnboundNamed n
adamc@157 478 | SOME x => x
adamc@157 479
adamc@171 480 fun lookupConstructor (env : env) s = SM.find (#constructors env, s)
adamc@171 481
adamc@191 482 fun datatypeArgs (xs, _) = xs
adamc@191 483 fun constructors (_, dt) = IM.foldri (fn (n, (x, to), ls) => (x, n, to) :: ls) [] dt
adamc@157 484
adamc@211 485 fun pushClass (env : env) n =
adamc@623 486 {renameK = #renameK env,
adamc@623 487 relK = #relK env,
adamc@623 488
adamc@623 489 renameC = #renameC env,
adamc@211 490 relC = #relC env,
adamc@211 491 namedC = #namedC env,
adamc@211 492
adamc@211 493 datatypes = #datatypes env,
adamc@211 494 constructors = #constructors env,
adamc@211 495
adamc@675 496 classes = CM.insert (#classes env, ClNamed n, empty_class),
adamc@211 497
adamc@211 498 renameE = #renameE env,
adamc@211 499 relE = #relE env,
adamc@211 500 namedE = #namedE env,
adamc@211 501
adamc@211 502 renameSgn = #renameSgn env,
adamc@211 503 sgn = #sgn env,
adamc@211 504
adamc@211 505 renameStr = #renameStr env,
adamc@403 506 str = #str env}
adamc@211 507
adamc@211 508 fun class_name_in (c, _) =
adamc@211 509 case c of
adamc@211 510 CNamed n => SOME (ClNamed n)
adamc@211 511 | CModProj x => SOME (ClProj x)
adamc@228 512 | CUnif (_, _, _, ref (SOME c)) => class_name_in c
adamc@211 513 | _ => NONE
adamc@211 514
adamc@403 515 fun isClass (env : env) c =
adamc@403 516 let
adamc@403 517 fun find NONE = false
adamc@403 518 | find (SOME c) = Option.isSome (CM.find (#classes env, c))
adamc@403 519 in
adamc@403 520 find (class_name_in c)
adamc@403 521 end
adamc@403 522
adamc@684 523 fun class_key_in (all as (c, _)) =
adamc@211 524 case c of
adamc@684 525 CRel n => CkRel n
adamc@684 526 | CNamed n => CkNamed n
adamc@684 527 | CModProj x => CkProj x
adamc@228 528 | CUnif (_, _, _, ref (SOME c)) => class_key_in c
adamc@684 529 | CApp (c1, c2) => CkApp (class_key_in c1, class_key_in c2)
adamc@684 530 | _ => CkOther all
adamc@211 531
adamc@674 532 fun class_key_out loc =
adamc@674 533 let
adamc@674 534 fun cko k =
adamc@674 535 case k of
adamc@674 536 CkRel n => (CRel n, loc)
adamc@674 537 | CkNamed n => (CNamed n, loc)
adamc@674 538 | CkProj x => (CModProj x, loc)
adamc@674 539 | CkApp (k1, k2) => (CApp (cko k1, cko k2), loc)
adamc@684 540 | CkOther c => c
adamc@674 541 in
adamc@674 542 cko
adamc@674 543 end
adamc@674 544
adamc@211 545 fun class_pair_in (c, _) =
adamc@211 546 case c of
adamc@211 547 CApp (f, x) =>
adamc@684 548 (case class_name_in f of
adamc@684 549 SOME f => SOME (f, class_key_in x)
adamc@211 550 | _ => NONE)
adamc@452 551 | CUnif (_, _, _, ref (SOME c)) => class_pair_in c
adamc@211 552 | _ => NONE
adamc@211 553
adamc@674 554 fun sub_class_key (n, c) =
adamc@674 555 let
adamc@674 556 fun csk k =
adamc@674 557 case k of
adamc@684 558 CkRel n' => SOME (if n' = n then
adamc@684 559 c
adamc@684 560 else
adamc@684 561 k)
adamc@684 562 | CkNamed _ => SOME k
adamc@684 563 | CkProj _ => SOME k
adamc@684 564 | CkApp (k1, k2) =>
adamc@684 565 (case (csk k1, csk k2) of
adamc@684 566 (SOME k1, SOME k2) => SOME (CkApp (k1, k2))
adamc@684 567 | _ => NONE)
adamc@684 568 | CkOther _ => NONE
adamc@674 569 in
adamc@674 570 csk
adamc@674 571 end
adamc@674 572
adamc@211 573 fun resolveClass (env : env) c =
adamc@674 574 let
adamc@674 575 fun doPair (f, x) =
adamc@674 576 case CM.find (#classes env, f) of
adamc@674 577 NONE => NONE
adamc@674 578 | SOME class =>
adamc@674 579 let
adamc@674 580 val loc = #2 c
adamc@675 581
adamc@675 582 fun tryIncs () =
adamc@675 583 let
adamc@675 584 fun tryIncs fs =
adamc@675 585 case fs of
adamc@675 586 [] => NONE
adamc@675 587 | (f', e') :: fs =>
adamc@675 588 case doPair (f', x) of
adamc@675 589 NONE => tryIncs fs
adamc@675 590 | SOME e =>
adamc@675 591 let
adamc@675 592 val e' = (ECApp (e', class_key_out loc x), loc)
adamc@675 593 val e' = (EApp (e', e), loc)
adamc@675 594 in
adamc@675 595 SOME e'
adamc@675 596 end
adamc@675 597 in
adamc@675 598 tryIncs (CM.listItemsi (#inclusions class))
adamc@675 599 end
adamc@675 600
adamc@674 601 fun tryRules (k, args) =
adamc@674 602 let
adamc@674 603 val len = length args
adamc@675 604
adamc@675 605 fun tryNext () =
adamc@675 606 case k of
adamc@675 607 CkApp (k1, k2) => tryRules (k1, k2 :: args)
adamc@675 608 | _ => tryIncs ()
adamc@674 609 in
adamc@675 610 case KM.find (#ground class, (k, length args)) of
adamc@674 611 SOME (cs, e) =>
adamc@674 612 let
adamc@674 613 val es = map (fn (cn, ck) =>
adamc@674 614 let
adamc@674 615 val ck = ListUtil.foldli (fn (i, arg, ck) =>
adamc@684 616 case ck of
adamc@684 617 NONE => NONE
adamc@684 618 | SOME ck =>
adamc@684 619 sub_class_key (len - i - 1,
adamc@684 620 arg)
adamc@684 621 ck)
adamc@684 622 (SOME ck) args
adamc@674 623 in
adamc@684 624 case ck of
adamc@684 625 NONE => NONE
adamc@684 626 | SOME ck => doPair (cn, ck)
adamc@674 627 end) cs
adamc@674 628 in
adamc@674 629 if List.exists (not o Option.isSome) es then
adamc@675 630 tryNext ()
adamc@674 631 else
adamc@674 632 let
adamc@674 633 val e = foldl (fn (arg, e) => (ECApp (e, class_key_out loc arg), loc))
adamc@674 634 e args
adamc@674 635 val e = foldr (fn (pf, e) => (EApp (e, pf), loc))
adamc@674 636 e (List.mapPartial (fn x => x) es)
adamc@674 637 in
adamc@674 638 SOME e
adamc@674 639 end
adamc@674 640 end
adamc@675 641 | NONE => tryNext ()
adamc@674 642 end
adamc@674 643 in
adamc@674 644 tryRules (x, [])
adamc@674 645 end
adamc@674 646 in
adamc@674 647 case class_pair_in c of
adamc@674 648 SOME p => doPair p
adamc@674 649 | _ => NONE
adamc@674 650 end
adamc@211 651
adamc@9 652 fun pushERel (env : env) x t =
adamc@9 653 let
adamc@9 654 val renameE = SM.map (fn Rel' (n, t) => Rel' (n+1, t)
adamc@9 655 | x => x) (#renameE env)
adamc@211 656
adamc@675 657 val classes = CM.map (fn class =>
adamc@675 658 {ground = KM.map (fn (ps, e) => (ps, liftExp e)) (#ground class),
adamc@675 659 inclusions = #inclusions class}) (#classes env)
adamc@211 660 val classes = case class_pair_in t of
adamc@211 661 NONE => classes
adamc@211 662 | SOME (f, x) =>
adamc@403 663 case CM.find (classes, f) of
adamc@403 664 NONE => classes
adamc@403 665 | SOME class =>
adamc@403 666 let
adamc@675 667 val class = {ground = KM.insert (#ground class, (x, 0), ([], (ERel 0, #2 t))),
adamc@675 668 inclusions = #inclusions class}
adamc@403 669 in
adamc@403 670 CM.insert (classes, f, class)
adamc@403 671 end
adamc@9 672 in
adamc@623 673 {renameK = #renameK env,
adamc@623 674 relK = #relK env,
adamc@623 675
adamc@623 676 renameC = #renameC env,
adamc@9 677 relC = #relC env,
adamc@9 678 namedC = #namedC env,
adamc@9 679
adamc@157 680 datatypes = #datatypes env,
adamc@171 681 constructors = #constructors env,
adamc@157 682
adamc@211 683 classes = classes,
adamc@211 684
adamc@9 685 renameE = SM.insert (renameE, x, Rel' (0, t)),
adamc@9 686 relE = (x, t) :: #relE env,
adamc@31 687 namedE = #namedE env,
adamc@31 688
adamc@31 689 renameSgn = #renameSgn env,
adamc@31 690 sgn = #sgn env,
adamc@31 691
adamc@31 692 renameStr = #renameStr env,
adamc@31 693 str = #str env}
adamc@9 694 end
adamc@9 695
adamc@9 696 fun lookupERel (env : env) n =
adamc@9 697 (List.nth (#relE env, n))
adamc@9 698 handle Subscript => raise UnboundRel n
adamc@9 699
adamc@675 700 datatype rule =
adamc@675 701 Normal of int * (class_name * class_key) list * class_key
adamc@675 702 | Inclusion of class_name
adamc@675 703
adamc@684 704 fun containsOther k =
adamc@684 705 case k of
adamc@684 706 CkOther _ => true
adamc@684 707 | CkApp (k1, k2) => containsOther k1 orelse containsOther k2
adamc@684 708 | _ => false
adamc@684 709
adamc@674 710 fun rule_in c =
adamc@674 711 let
adamc@674 712 fun quantifiers (c, nvars) =
adamc@674 713 case #1 c of
adamc@674 714 TCFun (_, _, _, c) => quantifiers (c, nvars + 1)
adamc@674 715 | _ =>
adamc@674 716 let
adamc@674 717 fun clauses (c, hyps) =
adamc@674 718 case #1 c of
adamc@674 719 TFun (hyp, c) =>
adamc@674 720 (case class_pair_in hyp of
adamc@677 721 SOME (p as (_, CkRel _)) => clauses (c, p :: hyps)
adamc@677 722 | _ => NONE)
adamc@674 723 | _ =>
adamc@674 724 case class_pair_in c of
adamc@674 725 NONE => NONE
adamc@674 726 | SOME (cn, ck) =>
adamc@674 727 let
adamc@674 728 fun dearg (ck, i) =
adamc@674 729 if i >= nvars then
adamc@684 730 if containsOther ck
adamc@684 731 orelse List.exists (fn (_, k) => containsOther k) hyps then
adamc@684 732 NONE
adamc@684 733 else
adamc@684 734 SOME (cn, Normal (nvars, hyps, ck))
adamc@674 735 else case ck of
adamc@674 736 CkApp (ck, CkRel i') =>
adamc@674 737 if i' = i then
adamc@674 738 dearg (ck, i + 1)
adamc@674 739 else
adamc@674 740 NONE
adamc@674 741 | _ => NONE
adamc@674 742 in
adamc@674 743 dearg (ck, 0)
adamc@674 744 end
adamc@674 745 in
adamc@674 746 clauses (c, [])
adamc@674 747 end
adamc@674 748 in
adamc@675 749 case #1 c of
adamc@675 750 TCFun (_, _, _, (TFun ((CApp (f1, (CRel 0, _)), _),
adamc@675 751 (CApp (f2, (CRel 0, _)), _)), _)) =>
adamc@675 752 (case (class_name_in f1, class_name_in f2) of
adamc@675 753 (SOME f1, SOME f2) => SOME (f2, Inclusion f1)
adamc@675 754 | _ => NONE)
adamc@675 755 | _ => quantifiers (c, 0)
adamc@674 756 end
adamc@674 757
adamc@677 758 fun inclusion (classes : class CM.map, init, inclusions, f, e : exp) =
adamc@677 759 let
adamc@677 760 fun search (f, fs) =
adamc@677 761 if f = init then
adamc@677 762 NONE
adamc@677 763 else if CS.member (fs, f) then
adamc@677 764 SOME fs
adamc@677 765 else
adamc@677 766 let
adamc@677 767 val fs = CS.add (fs, f)
adamc@677 768 in
adamc@677 769 case CM.find (classes, f) of
adamc@677 770 NONE => SOME fs
adamc@677 771 | SOME {inclusions = fs', ...} =>
adamc@677 772 CM.foldli (fn (f', _, fs) =>
adamc@677 773 case fs of
adamc@677 774 NONE => NONE
adamc@677 775 | SOME fs => search (f', fs)) (SOME fs) fs'
adamc@677 776 end
adamc@677 777 in
adamc@677 778 case search (f, CS.empty) of
adamc@677 779 SOME _ => CM.insert (inclusions, f, e)
adamc@677 780 | NONE => (ErrorMsg.errorAt (#2 e) "Type class inclusion would create a cycle";
adamc@677 781 inclusions)
adamc@677 782 end
adamc@677 783
adamc@9 784 fun pushENamedAs (env : env) x n t =
adamc@211 785 let
adamc@211 786 val classes = #classes env
adamc@674 787 val classes = case rule_in t of
adamc@211 788 NONE => classes
adamc@675 789 | SOME (f, rule) =>
adamc@403 790 case CM.find (classes, f) of
adamc@403 791 NONE => classes
adamc@403 792 | SOME class =>
adamc@403 793 let
adamc@675 794 val e = (ENamed n, #2 t)
adamc@675 795
adamc@675 796 val class =
adamc@675 797 case rule of
adamc@675 798 Normal (nvars, hyps, x) =>
adamc@675 799 {ground = KM.insert (#ground class, (x, nvars), (hyps, e)),
adamc@675 800 inclusions = #inclusions class}
adamc@675 801 | Inclusion f' =>
adamc@675 802 {ground = #ground class,
adamc@677 803 inclusions = inclusion (classes, f, #inclusions class, f', e)}
adamc@403 804 in
adamc@403 805 CM.insert (classes, f, class)
adamc@403 806 end
adamc@211 807 in
adamc@623 808 {renameK = #renameK env,
adamc@623 809 relK = #relK env,
adamc@623 810
adamc@623 811 renameC = #renameC env,
adamc@211 812 relC = #relC env,
adamc@211 813 namedC = #namedC env,
adamc@9 814
adamc@211 815 datatypes = #datatypes env,
adamc@211 816 constructors = #constructors env,
adamc@157 817
adamc@211 818 classes = classes,
adamc@31 819
adamc@211 820 renameE = SM.insert (#renameE env, x, Named' (n, t)),
adamc@211 821 relE = #relE env,
adamc@211 822 namedE = IM.insert (#namedE env, n, (x, t)),
adamc@211 823
adamc@211 824 renameSgn = #renameSgn env,
adamc@211 825 sgn = #sgn env,
adamc@211 826
adamc@211 827 renameStr = #renameStr env,
adamc@211 828 str = #str env}
adamc@211 829 end
adamc@9 830
adamc@9 831 fun pushENamed env x t =
adamc@9 832 let
adamc@9 833 val n = !namedCounter
adamc@9 834 in
adamc@9 835 namedCounter := n + 1;
adamc@9 836 (pushENamedAs env x n t, n)
adamc@9 837 end
adamc@9 838
adamc@9 839 fun lookupENamed (env : env) n =
adamc@9 840 case IM.find (#namedE env, n) of
adamc@9 841 NONE => raise UnboundNamed n
adamc@9 842 | SOME x => x
adamc@9 843
adamc@471 844 fun checkENamed (env : env) n =
adamc@471 845 Option.isSome (IM.find (#namedE env, n))
adamc@471 846
adamc@9 847 fun lookupE (env : env) x =
adamc@9 848 case SM.find (#renameE env, x) of
adamc@9 849 NONE => NotBound
adamc@9 850 | SOME (Rel' x) => Rel x
adamc@9 851 | SOME (Named' x) => Named x
adamc@2 852
adamc@31 853 fun pushSgnNamedAs (env : env) x n sgis =
adamc@623 854 {renameK = #renameK env,
adamc@623 855 relK = #relK env,
adamc@623 856
adamc@623 857 renameC = #renameC env,
adamc@31 858 relC = #relC env,
adamc@31 859 namedC = #namedC env,
adamc@31 860
adamc@157 861 datatypes = #datatypes env,
adamc@171 862 constructors = #constructors env,
adamc@157 863
adamc@211 864 classes = #classes env,
adamc@211 865
adamc@31 866 renameE = #renameE env,
adamc@31 867 relE = #relE env,
adamc@31 868 namedE = #namedE env,
adamc@31 869
adamc@31 870 renameSgn = SM.insert (#renameSgn env, x, (n, sgis)),
adamc@31 871 sgn = IM.insert (#sgn env, n, (x, sgis)),
adamc@31 872
adamc@31 873 renameStr = #renameStr env,
adamc@31 874 str = #str env}
adamc@31 875
adamc@31 876 fun pushSgnNamed env x sgis =
adamc@31 877 let
adamc@31 878 val n = !namedCounter
adamc@31 879 in
adamc@31 880 namedCounter := n + 1;
adamc@31 881 (pushSgnNamedAs env x n sgis, n)
adamc@31 882 end
adamc@31 883
adamc@31 884 fun lookupSgnNamed (env : env) n =
adamc@31 885 case IM.find (#sgn env, n) of
adamc@31 886 NONE => raise UnboundNamed n
adamc@31 887 | SOME x => x
adamc@31 888
adamc@31 889 fun lookupSgn (env : env) x = SM.find (#renameSgn env, x)
adamc@31 890
adamc@31 891 fun lookupStrNamed (env : env) n =
adamc@31 892 case IM.find (#str env, n) of
adamc@31 893 NONE => raise UnboundNamed n
adamc@31 894 | SOME x => x
adamc@31 895
adamc@31 896 fun lookupStr (env : env) x = SM.find (#renameStr env, x)
adamc@31 897
adamc@203 898
adamc@216 899 fun sgiSeek (sgi, (sgns, strs, cons)) =
adamc@216 900 case sgi of
adamc@216 901 SgiConAbs (x, n, _) => (sgns, strs, IM.insert (cons, n, x))
adamc@216 902 | SgiCon (x, n, _, _) => (sgns, strs, IM.insert (cons, n, x))
adamc@216 903 | SgiDatatype (x, n, _, _) => (sgns, strs, IM.insert (cons, n, x))
adamc@216 904 | SgiDatatypeImp (x, n, _, _, _, _, _) => (sgns, strs, IM.insert (cons, n, x))
adamc@216 905 | SgiVal _ => (sgns, strs, cons)
adamc@216 906 | SgiSgn (x, n, _) => (IM.insert (sgns, n, x), strs, cons)
adamc@216 907 | SgiStr (x, n, _) => (sgns, IM.insert (strs, n, x), cons)
adamc@216 908 | SgiConstraint _ => (sgns, strs, cons)
adamc@563 909 | SgiClassAbs (x, n, _) => (sgns, strs, IM.insert (cons, n, x))
adamc@563 910 | SgiClass (x, n, _, _) => (sgns, strs, IM.insert (cons, n, x))
adamc@216 911
adamc@34 912 fun sgnSeek f sgis =
adamc@34 913 let
adamc@59 914 fun seek (sgis, sgns, strs, cons) =
adamc@34 915 case sgis of
adamc@34 916 [] => NONE
adamc@34 917 | (sgi, _) :: sgis =>
adamc@34 918 case f sgi of
adamc@158 919 SOME v =>
adamc@158 920 let
adamc@158 921 val cons =
adamc@158 922 case sgi of
adamc@191 923 SgiDatatype (x, n, _, _) => IM.insert (cons, n, x)
adamc@191 924 | SgiDatatypeImp (x, n, _, _, _, _, _) => IM.insert (cons, n, x)
adamc@158 925 | _ => cons
adamc@158 926 in
adamc@158 927 SOME (v, (sgns, strs, cons))
adamc@158 928 end
adamc@88 929 | NONE =>
adamc@216 930 let
adamc@216 931 val (sgns, strs, cons) = sgiSeek (sgi, (sgns, strs, cons))
adamc@216 932 in
adamc@216 933 seek (sgis, sgns, strs, cons)
adamc@216 934 end
adamc@34 935 in
adamc@59 936 seek (sgis, IM.empty, IM.empty, IM.empty)
adamc@34 937 end
adamc@34 938
adamc@34 939 fun id x = x
adamc@34 940
adamc@34 941 fun unravelStr (str, _) =
adamc@34 942 case str of
adamc@34 943 StrVar x => (x, [])
adamc@34 944 | StrProj (str, m) =>
adamc@34 945 let
adamc@34 946 val (x, ms) = unravelStr str
adamc@34 947 in
adamc@34 948 (x, ms @ [m])
adamc@34 949 end
adamc@34 950 | _ => raise Fail "unravelStr"
adamc@34 951
adamc@59 952 fun sgnS_con (str, (sgns, strs, cons)) c =
adamc@34 953 case c of
adamc@34 954 CModProj (m1, ms, x) =>
adamc@34 955 (case IM.find (strs, m1) of
adamc@34 956 NONE => c
adamc@34 957 | SOME m1x =>
adamc@34 958 let
adamc@34 959 val (m1, ms') = unravelStr str
adamc@34 960 in
adamc@34 961 CModProj (m1, ms' @ m1x :: ms, x)
adamc@34 962 end)
adamc@34 963 | CNamed n =>
adamc@34 964 (case IM.find (cons, n) of
adamc@34 965 NONE => c
adamc@34 966 | SOME nx =>
adamc@34 967 let
adamc@34 968 val (m1, ms) = unravelStr str
adamc@34 969 in
adamc@34 970 CModProj (m1, ms, nx)
adamc@34 971 end)
adamc@34 972 | _ => c
adamc@34 973
adamc@467 974 fun sgnS_con' (arg as (m1, ms', (sgns, strs, cons))) c =
adamc@216 975 case c of
adamc@216 976 CModProj (m1, ms, x) =>
adamc@216 977 (case IM.find (strs, m1) of
adamc@216 978 NONE => c
adamc@216 979 | SOME m1x => CModProj (m1, ms' @ m1x :: ms, x))
adamc@216 980 | CNamed n =>
adamc@216 981 (case IM.find (cons, n) of
adamc@216 982 NONE => c
adamc@216 983 | SOME nx => CModProj (m1, ms', nx))
adamc@467 984 | CApp (c1, c2) => CApp ((sgnS_con' arg (#1 c1), #2 c1),
adamc@467 985 (sgnS_con' arg (#1 c2), #2 c2))
adamc@216 986 | _ => c
adamc@216 987
adamc@674 988 fun sgnS_class_name (arg as (m1, ms', (sgns, strs, cons))) nm =
adamc@674 989 case nm of
adamc@674 990 ClProj (m1, ms, x) =>
adamc@674 991 (case IM.find (strs, m1) of
adamc@674 992 NONE => nm
adamc@674 993 | SOME m1x => ClProj (m1, ms' @ m1x :: ms, x))
adamc@674 994 | ClNamed n =>
adamc@674 995 (case IM.find (cons, n) of
adamc@674 996 NONE => nm
adamc@674 997 | SOME nx => ClProj (m1, ms', nx))
adamc@674 998
adamc@674 999 fun sgnS_class_key (arg as (m1, ms', (sgns, strs, cons))) k =
adamc@674 1000 case k of
adamc@674 1001 CkProj (m1, ms, x) =>
adamc@674 1002 (case IM.find (strs, m1) of
adamc@674 1003 NONE => k
adamc@674 1004 | SOME m1x => CkProj (m1, ms' @ m1x :: ms, x))
adamc@674 1005 | CkNamed n =>
adamc@674 1006 (case IM.find (cons, n) of
adamc@674 1007 NONE => k
adamc@674 1008 | SOME nx => CkProj (m1, ms', nx))
adamc@674 1009 | CkApp (k1, k2) => CkApp (sgnS_class_key arg k1,
adamc@674 1010 sgnS_class_key arg k2)
adamc@674 1011 | _ => k
adamc@674 1012
adamc@59 1013 fun sgnS_sgn (str, (sgns, strs, cons)) sgn =
adamc@59 1014 case sgn of
adamc@59 1015 SgnProj (m1, ms, x) =>
adamc@59 1016 (case IM.find (strs, m1) of
adamc@59 1017 NONE => sgn
adamc@59 1018 | SOME m1x =>
adamc@59 1019 let
adamc@59 1020 val (m1, ms') = unravelStr str
adamc@59 1021 in
adamc@59 1022 SgnProj (m1, ms' @ m1x :: ms, x)
adamc@59 1023 end)
adamc@59 1024 | SgnVar n =>
adamc@59 1025 (case IM.find (sgns, n) of
adamc@59 1026 NONE => sgn
adamc@59 1027 | SOME nx =>
adamc@59 1028 let
adamc@59 1029 val (m1, ms) = unravelStr str
adamc@59 1030 in
adamc@59 1031 SgnProj (m1, ms, nx)
adamc@59 1032 end)
adamc@59 1033 | _ => sgn
adamc@59 1034
adamc@59 1035 fun sgnSubSgn x =
adamc@34 1036 ElabUtil.Sgn.map {kind = id,
adamc@59 1037 con = sgnS_con x,
adamc@34 1038 sgn_item = id,
adamc@59 1039 sgn = sgnS_sgn x}
adamc@34 1040
adamc@211 1041
adamc@211 1042
adamc@211 1043 and projectSgn env {sgn, str, field} =
adamc@211 1044 case #1 (hnormSgn env sgn) of
adamc@211 1045 SgnConst sgis =>
adamc@211 1046 (case sgnSeek (fn SgiSgn (x, _, sgn) => if x = field then SOME sgn else NONE | _ => NONE) sgis of
adamc@211 1047 NONE => NONE
adamc@211 1048 | SOME (sgn, subs) => SOME (sgnSubSgn (str, subs) sgn))
adamc@211 1049 | SgnError => SOME (SgnError, ErrorMsg.dummySpan)
adamc@211 1050 | _ => NONE
adamc@211 1051
adamc@211 1052 and hnormSgn env (all as (sgn, loc)) =
adamc@34 1053 case sgn of
adamc@42 1054 SgnError => all
adamc@42 1055 | SgnVar n => hnormSgn env (#2 (lookupSgnNamed env n))
adamc@42 1056 | SgnConst _ => all
adamc@42 1057 | SgnFun _ => all
adamc@59 1058 | SgnProj (m, ms, x) =>
adamc@59 1059 let
adamc@59 1060 val (_, sgn) = lookupStrNamed env m
adamc@59 1061 in
adamc@59 1062 case projectSgn env {str = foldl (fn (m, str) => (StrProj (str, m), loc)) (StrVar m, loc) ms,
adamc@59 1063 sgn = sgn,
adamc@59 1064 field = x} of
adamc@59 1065 NONE => raise Fail "ElabEnv.hnormSgn: projectSgn failed"
adamc@59 1066 | SOME sgn => sgn
adamc@59 1067 end
adamc@42 1068 | SgnWhere (sgn, x, c) =>
adamc@42 1069 case #1 (hnormSgn env sgn) of
adamc@42 1070 SgnError => (SgnError, loc)
adamc@42 1071 | SgnConst sgis =>
adamc@42 1072 let
adamc@42 1073 fun traverse (pre, post) =
adamc@42 1074 case post of
adamc@42 1075 [] => raise Fail "ElabEnv.hnormSgn: Can't reduce 'where' [1]"
adamc@42 1076 | (sgi as (SgiConAbs (x', n, k), loc)) :: rest =>
adamc@42 1077 if x = x' then
adamc@42 1078 List.revAppend (pre, (SgiCon (x', n, k, c), loc) :: rest)
adamc@42 1079 else
adamc@42 1080 traverse (sgi :: pre, rest)
adamc@42 1081 | sgi :: rest => traverse (sgi :: pre, rest)
adamc@42 1082
adamc@42 1083 val sgis = traverse ([], sgis)
adamc@42 1084 in
adamc@42 1085 (SgnConst sgis, loc)
adamc@42 1086 end
adamc@42 1087 | _ => raise Fail "ElabEnv.hnormSgn: Can't reduce 'where' [2]"
adamc@42 1088
adamc@211 1089 fun enrichClasses env classes (m1, ms) sgn =
adamc@59 1090 case #1 (hnormSgn env sgn) of
adamc@59 1091 SgnConst sgis =>
adamc@211 1092 let
adamc@218 1093 val (classes, _, _, _) =
adamc@218 1094 foldl (fn (sgi, (classes, newClasses, fmap, env)) =>
adamc@211 1095 let
adamc@211 1096 fun found (x, n) =
adamc@211 1097 (CM.insert (classes,
adamc@211 1098 ClProj (m1, ms, x),
adamc@211 1099 empty_class),
adamc@216 1100 IM.insert (newClasses, n, x),
adamc@218 1101 sgiSeek (#1 sgi, fmap),
adamc@218 1102 env)
adamc@216 1103
adamc@218 1104 fun default () = (classes, newClasses, sgiSeek (#1 sgi, fmap), env)
adamc@211 1105 in
adamc@211 1106 case #1 sgi of
adamc@217 1107 SgiStr (x, _, sgn) =>
adamc@217 1108 (enrichClasses env classes (m1, ms @ [x]) sgn,
adamc@217 1109 newClasses,
adamc@218 1110 sgiSeek (#1 sgi, fmap),
adamc@218 1111 env)
adamc@218 1112 | SgiSgn (x, n, sgn) =>
adamc@218 1113 (classes,
adamc@218 1114 newClasses,
adamc@218 1115 fmap,
adamc@218 1116 pushSgnNamedAs env x n sgn)
adamc@218 1117
adamc@563 1118 | SgiClassAbs (x, n, _) => found (x, n)
adamc@563 1119 | SgiClass (x, n, _, _) => found (x, n)
adamc@674 1120 | SgiVal (x, n, c) =>
adamc@674 1121 (case rule_in c of
adamc@674 1122 NONE => default ()
adamc@675 1123 | SOME (cn, rule) =>
adamc@674 1124 let
adamc@675 1125 val globalizeN = sgnS_class_name (m1, ms, fmap)
adamc@674 1126 val globalize = sgnS_class_key (m1, ms, fmap)
adamc@216 1127
adamc@674 1128 fun unravel c =
adamc@674 1129 case c of
adamc@674 1130 ClNamed n =>
adamc@674 1131 ((case lookupCNamed env n of
adamc@674 1132 (_, _, SOME c') =>
adamc@674 1133 (case class_name_in c' of
adamc@674 1134 NONE => c
adamc@674 1135 | SOME k => unravel k)
adamc@674 1136 | _ => c)
adamc@674 1137 handle UnboundNamed _ => c)
adamc@674 1138 | _ => c
adamc@674 1139
adamc@674 1140 val nc =
adamc@674 1141 case cn of
adamc@674 1142 ClNamed f => IM.find (newClasses, f)
adamc@674 1143 | _ => NONE
adamc@674 1144 in
adamc@674 1145 case nc of
adamc@674 1146 NONE =>
adamc@419 1147 let
adamc@419 1148 val classes =
adamc@419 1149 case CM.find (classes, cn) of
adamc@419 1150 NONE => classes
adamc@419 1151 | SOME class =>
adamc@419 1152 let
adamc@675 1153 val e = (EModProj (m1, ms, x),
adamc@675 1154 #2 sgn)
adamc@675 1155
adamc@675 1156 val class =
adamc@675 1157 case rule of
adamc@675 1158 Normal (nvars, hyps, a) =>
adamc@675 1159 {ground =
adamc@675 1160 KM.insert (#ground class, (globalize a, nvars),
adamc@675 1161 (map (fn (n, k) =>
adamc@675 1162 (globalizeN n,
adamc@675 1163 globalize k)) hyps, e)),
adamc@675 1164 inclusions = #inclusions class}
adamc@675 1165 | Inclusion f' =>
adamc@675 1166 {ground = #ground class,
adamc@677 1167 inclusions = inclusion (classes, cn,
adamc@677 1168 #inclusions class,
adamc@675 1169 globalizeN f', e)}
adamc@419 1170 in
adamc@419 1171 CM.insert (classes, cn, class)
adamc@419 1172 end
adamc@419 1173 in
adamc@419 1174 (classes,
adamc@419 1175 newClasses,
adamc@419 1176 fmap,
adamc@419 1177 env)
adamc@419 1178 end
adamc@674 1179 | SOME fx =>
adamc@674 1180 let
adamc@674 1181 val cn = ClProj (m1, ms, fx)
adamc@419 1182
adamc@674 1183 val classes =
adamc@674 1184 case CM.find (classes, cn) of
adamc@674 1185 NONE => classes
adamc@674 1186 | SOME class =>
adamc@674 1187 let
adamc@675 1188 val e = (EModProj (m1, ms, x), #2 sgn)
adamc@675 1189
adamc@675 1190 val class =
adamc@675 1191 case rule of
adamc@675 1192 Normal (nvars, hyps, a) =>
adamc@675 1193 {ground =
adamc@675 1194 KM.insert (#ground class, (globalize a, nvars),
adamc@675 1195 (map (fn (n, k) =>
adamc@675 1196 (globalizeN n,
adamc@675 1197 globalize k)) hyps, e)),
adamc@675 1198 inclusions = #inclusions class}
adamc@675 1199 | Inclusion f' =>
adamc@675 1200 {ground = #ground class,
adamc@677 1201 inclusions = inclusion (classes, cn,
adamc@677 1202 #inclusions class,
adamc@675 1203 globalizeN f', e)}
adamc@674 1204 in
adamc@674 1205 CM.insert (classes, cn, class)
adamc@674 1206 end
adamc@674 1207 in
adamc@674 1208 (classes,
adamc@674 1209 newClasses,
adamc@674 1210 fmap,
adamc@674 1211 env)
adamc@674 1212 end
adamc@674 1213 end)
adamc@216 1214 | _ => default ()
adamc@211 1215 end)
adamc@218 1216 (classes, IM.empty, (IM.empty, IM.empty, IM.empty), env) sgis
adamc@211 1217 in
adamc@211 1218 classes
adamc@211 1219 end
adamc@211 1220 | _ => classes
adamc@211 1221
adamc@211 1222 fun pushStrNamedAs (env : env) x n sgn =
adamc@623 1223 {renameK = #renameK env,
adamc@623 1224 relK = #relK env,
adamc@623 1225
adamc@623 1226 renameC = #renameC env,
adamc@211 1227 relC = #relC env,
adamc@211 1228 namedC = #namedC env,
adamc@211 1229
adamc@211 1230 datatypes = #datatypes env,
adamc@211 1231 constructors = #constructors env,
adamc@211 1232
adamc@211 1233 classes = enrichClasses env (#classes env) (n, []) sgn,
adamc@211 1234
adamc@211 1235 renameE = #renameE env,
adamc@211 1236 relE = #relE env,
adamc@211 1237 namedE = #namedE env,
adamc@211 1238
adamc@211 1239 renameSgn = #renameSgn env,
adamc@211 1240 sgn = #sgn env,
adamc@211 1241
adamc@211 1242 renameStr = SM.insert (#renameStr env, x, (n, sgn)),
adamc@211 1243 str = IM.insert (#str env, n, (x, sgn))}
adamc@211 1244
adamc@211 1245 fun pushStrNamed env x sgn =
adamc@211 1246 let
adamc@211 1247 val n = !namedCounter
adamc@211 1248 in
adamc@211 1249 namedCounter := n + 1;
adamc@211 1250 (pushStrNamedAs env x n sgn, n)
adamc@211 1251 end
adamc@211 1252
adamc@211 1253 fun sgiBinds env (sgi, loc) =
adamc@211 1254 case sgi of
adamc@211 1255 SgiConAbs (x, n, k) => pushCNamedAs env x n k NONE
adamc@211 1256 | SgiCon (x, n, k, c) => pushCNamedAs env x n k (SOME c)
adamc@211 1257 | SgiDatatype (x, n, xs, xncs) =>
adamc@211 1258 let
adamc@341 1259 val k = (KType, loc)
adamc@341 1260 val k' = foldr (fn (_, k') => (KArrow (k, k'), loc)) k xs
adamc@341 1261
adamc@341 1262 val env = pushCNamedAs env x n k' NONE
adamc@211 1263 in
adamc@211 1264 foldl (fn ((x', n', to), env) =>
adamc@211 1265 let
adamc@211 1266 val t =
adamc@211 1267 case to of
adamc@211 1268 NONE => (CNamed n, loc)
adamc@211 1269 | SOME t => (TFun (t, (CNamed n, loc)), loc)
adamc@211 1270
adamc@211 1271 val k = (KType, loc)
adamc@211 1272 val t = foldr (fn (x, t) => (TCFun (Explicit, x, k, t), loc)) t xs
adamc@211 1273 in
adamc@211 1274 pushENamedAs env x' n' t
adamc@211 1275 end)
adamc@211 1276 env xncs
adamc@211 1277 end
adamc@211 1278 | SgiDatatypeImp (x, n, m1, ms, x', xs, xncs) =>
adamc@211 1279 let
adamc@341 1280 val k = (KType, loc)
adamc@341 1281 val k' = foldr (fn (_, k') => (KArrow (k, k'), loc)) k xs
adamc@341 1282
adamc@341 1283 val env = pushCNamedAs env x n k' (SOME (CModProj (m1, ms, x'), loc))
adamc@211 1284 in
adamc@211 1285 foldl (fn ((x', n', to), env) =>
adamc@211 1286 let
adamc@211 1287 val t =
adamc@211 1288 case to of
adamc@211 1289 NONE => (CNamed n, loc)
adamc@211 1290 | SOME t => (TFun (t, (CNamed n, loc)), loc)
adamc@211 1291
adamc@211 1292 val k = (KType, loc)
adamc@211 1293 val t = foldr (fn (x, t) => (TCFun (Explicit, x, k, t), loc)) t xs
adamc@211 1294 in
adamc@211 1295 pushENamedAs env x' n' t
adamc@211 1296 end)
adamc@211 1297 env xncs
adamc@211 1298 end
adamc@211 1299 | SgiVal (x, n, t) => pushENamedAs env x n t
adamc@211 1300 | SgiStr (x, n, sgn) => pushStrNamedAs env x n sgn
adamc@211 1301 | SgiSgn (x, n, sgn) => pushSgnNamedAs env x n sgn
adamc@211 1302 | SgiConstraint _ => env
adamc@211 1303
adamc@563 1304 | SgiClassAbs (x, n, k) => pushCNamedAs env x n (KArrow (k, (KType, loc)), loc) NONE
adamc@563 1305 | SgiClass (x, n, k, c) => pushCNamedAs env x n (KArrow (k, (KType, loc)), loc) (SOME c)
adamc@459 1306
adamc@211 1307 fun sgnSubCon x =
adamc@211 1308 ElabUtil.Con.map {kind = id,
adamc@211 1309 con = sgnS_con x}
adamc@59 1310
adamc@59 1311 fun projectStr env {sgn, str, field} =
adamc@59 1312 case #1 (hnormSgn env sgn) of
adamc@59 1313 SgnConst sgis =>
adamc@59 1314 (case sgnSeek (fn SgiStr (x, _, sgn) => if x = field then SOME sgn else NONE | _ => NONE) sgis of
adamc@59 1315 NONE => NONE
adamc@59 1316 | SOME (sgn, subs) => SOME (sgnSubSgn (str, subs) sgn))
adamc@59 1317 | SgnError => SOME (SgnError, ErrorMsg.dummySpan)
adamc@59 1318 | _ => NONE
adamc@59 1319
adamc@158 1320 fun chaseMpath env (n, ms) =
adamc@158 1321 let
adamc@158 1322 val (_, sgn) = lookupStrNamed env n
adamc@158 1323 in
adamc@158 1324 foldl (fn (m, (str, sgn)) =>
adamc@158 1325 case projectStr env {sgn = sgn, str = str, field = m} of
adamc@158 1326 NONE => raise Fail "kindof: Unknown substructure"
adamc@158 1327 | SOME sgn => ((StrProj (str, m), #2 sgn), sgn))
adamc@158 1328 ((StrVar n, #2 sgn), sgn) ms
adamc@158 1329 end
adamc@158 1330
adamc@42 1331 fun projectCon env {sgn, str, field} =
adamc@42 1332 case #1 (hnormSgn env sgn) of
adamc@34 1333 SgnConst sgis =>
adamc@34 1334 (case sgnSeek (fn SgiConAbs (x, _, k) => if x = field then SOME (k, NONE) else NONE
adamc@34 1335 | SgiCon (x, _, k, c) => if x = field then SOME (k, SOME c) else NONE
adamc@341 1336 | SgiDatatype (x, _, xs, _) =>
adamc@158 1337 if x = field then
adamc@341 1338 let
adamc@341 1339 val k = (KType, #2 sgn)
adamc@341 1340 val k' = foldl (fn (_, k') => (KArrow (k, k'), #2 sgn)) k xs
adamc@341 1341 in
adamc@341 1342 SOME (k', NONE)
adamc@341 1343 end
adamc@341 1344 else
adamc@341 1345 NONE
adamc@341 1346 | SgiDatatypeImp (x, _, m1, ms, x', xs, _) =>
adamc@341 1347 if x = field then
adamc@341 1348 let
adamc@341 1349 val k = (KType, #2 sgn)
adamc@341 1350 val k' = foldl (fn (_, k') => (KArrow (k, k'), #2 sgn)) k xs
adamc@341 1351 in
adamc@341 1352 SOME (k', SOME (CModProj (m1, ms, x'), #2 sgn))
adamc@341 1353 end
adamc@158 1354 else
adamc@158 1355 NONE
adamc@563 1356 | SgiClassAbs (x, _, k) => if x = field then
adamc@563 1357 SOME ((KArrow (k, (KType, #2 sgn)), #2 sgn), NONE)
adamc@563 1358 else
adamc@563 1359 NONE
adamc@563 1360 | SgiClass (x, _, k, c) => if x = field then
adamc@563 1361 SOME ((KArrow (k, (KType, #2 sgn)), #2 sgn), SOME c)
adamc@563 1362 else
adamc@563 1363 NONE
adamc@34 1364 | _ => NONE) sgis of
adamc@34 1365 NONE => NONE
adamc@34 1366 | SOME ((k, co), subs) => SOME (k, Option.map (sgnSubCon (str, subs)) co))
adamc@34 1367 | SgnError => SOME ((KError, ErrorMsg.dummySpan), SOME (CError, ErrorMsg.dummySpan))
adamc@42 1368 | _ => NONE
adamc@34 1369
adamc@157 1370 fun projectDatatype env {sgn, str, field} =
adamc@157 1371 case #1 (hnormSgn env sgn) of
adamc@157 1372 SgnConst sgis =>
adamc@191 1373 (case sgnSeek (fn SgiDatatype (x, _, xs, xncs) => if x = field then SOME (xs, xncs) else NONE
adamc@191 1374 | SgiDatatypeImp (x, _, _, _, _, xs, xncs) => if x = field then SOME (xs, xncs) else NONE
adamc@157 1375 | _ => NONE) sgis of
adamc@157 1376 NONE => NONE
adamc@191 1377 | SOME ((xs, xncs), subs) => SOME (xs,
adamc@191 1378 map (fn (x, n, to) => (x, n, Option.map (sgnSubCon (str, subs)) to)) xncs))
adamc@157 1379 | _ => NONE
adamc@157 1380
adamc@174 1381 fun projectConstructor env {sgn, str, field} =
adamc@174 1382 case #1 (hnormSgn env sgn) of
adamc@174 1383 SgnConst sgis =>
adamc@174 1384 let
adamc@191 1385 fun consider (n, xs, xncs) =
adamc@174 1386 ListUtil.search (fn (x, n', to) =>
adamc@174 1387 if x <> field then
adamc@174 1388 NONE
adamc@174 1389 else
adamc@191 1390 SOME (U.classifyDatatype xncs, n', xs, to, (CNamed n, #2 str))) xncs
adamc@174 1391 in
adamc@191 1392 case sgnSeek (fn SgiDatatype (_, n, xs, xncs) => consider (n, xs, xncs)
adamc@191 1393 | SgiDatatypeImp (_, n, _, _, _, xs, xncs) => consider (n, xs, xncs)
adamc@174 1394 | _ => NONE) sgis of
adamc@174 1395 NONE => NONE
adamc@191 1396 | SOME ((dk, n, xs, to, t), subs) => SOME (dk, n, xs, Option.map (sgnSubCon (str, subs)) to,
adamc@191 1397 sgnSubCon (str, subs) t)
adamc@174 1398 end
adamc@174 1399 | _ => NONE
adamc@174 1400
adamc@42 1401 fun projectVal env {sgn, str, field} =
adamc@42 1402 case #1 (hnormSgn env sgn) of
adamc@34 1403 SgnConst sgis =>
adamc@162 1404 let
adamc@191 1405 fun seek (n, xs, xncs) =
adamc@162 1406 ListUtil.search (fn (x, _, to) =>
adamc@162 1407 if x = field then
adamc@191 1408 SOME (let
adamc@467 1409 val base = (CNamed n, #2 sgn)
adamc@467 1410 val nxs = length xs
adamc@467 1411 val base = ListUtil.foldli (fn (i, _, base) =>
adamc@467 1412 (CApp (base,
adamc@467 1413 (CRel (nxs - i - 1), #2 sgn)),
adamc@467 1414 #2 sgn))
adamc@467 1415 base xs
adamc@467 1416
adamc@191 1417 val t =
adamc@191 1418 case to of
adamc@467 1419 NONE => base
adamc@467 1420 | SOME t => (TFun (t, base), #2 sgn)
adamc@191 1421 val k = (KType, #2 sgn)
adamc@191 1422 in
adamc@467 1423 foldr (fn (x, t) => (TCFun (Implicit, x, k, t), #2 sgn))
adamc@191 1424 t xs
adamc@191 1425 end)
adamc@162 1426 else
adamc@162 1427 NONE) xncs
adamc@162 1428 in
adamc@162 1429 case sgnSeek (fn SgiVal (x, _, c) => if x = field then SOME c else NONE
adamc@191 1430 | SgiDatatype (_, n, xs, xncs) => seek (n, xs, xncs)
adamc@191 1431 | SgiDatatypeImp (_, n, _, _, _, xs, xncs) => seek (n, xs, xncs)
adamc@162 1432 | _ => NONE) sgis of
adamc@162 1433 NONE => NONE
adamc@162 1434 | SOME (c, subs) => SOME (sgnSubCon (str, subs) c)
adamc@162 1435 end
adamc@34 1436 | SgnError => SOME (CError, ErrorMsg.dummySpan)
adamc@42 1437 | _ => NONE
adamc@34 1438
adamc@88 1439 fun sgnSeekConstraints (str, sgis) =
adamc@88 1440 let
adamc@88 1441 fun seek (sgis, sgns, strs, cons, acc) =
adamc@88 1442 case sgis of
adamc@88 1443 [] => acc
adamc@88 1444 | (sgi, _) :: sgis =>
adamc@88 1445 case sgi of
adamc@88 1446 SgiConstraint (c1, c2) =>
adamc@88 1447 let
adamc@88 1448 val sub = sgnSubCon (str, (sgns, strs, cons))
adamc@88 1449 in
adamc@88 1450 seek (sgis, sgns, strs, cons, (sub c1, sub c2) :: acc)
adamc@88 1451 end
adamc@88 1452 | SgiConAbs (x, n, _) => seek (sgis, sgns, strs, IM.insert (cons, n, x), acc)
adamc@88 1453 | SgiCon (x, n, _, _) => seek (sgis, sgns, strs, IM.insert (cons, n, x), acc)
adamc@191 1454 | SgiDatatype (x, n, _, _) => seek (sgis, sgns, strs, IM.insert (cons, n, x), acc)
adamc@191 1455 | SgiDatatypeImp (x, n, _, _, _, _, _) => seek (sgis, sgns, strs, IM.insert (cons, n, x), acc)
adamc@88 1456 | SgiVal _ => seek (sgis, sgns, strs, cons, acc)
adamc@88 1457 | SgiSgn (x, n, _) => seek (sgis, IM.insert (sgns, n, x), strs, cons, acc)
adamc@88 1458 | SgiStr (x, n, _) => seek (sgis, sgns, IM.insert (strs, n, x), cons, acc)
adamc@563 1459 | SgiClassAbs (x, n, _) => seek (sgis, sgns, strs, IM.insert (cons, n, x), acc)
adamc@563 1460 | SgiClass (x, n, _, _) => seek (sgis, sgns, strs, IM.insert (cons, n, x), acc)
adamc@88 1461 in
adamc@88 1462 seek (sgis, IM.empty, IM.empty, IM.empty, [])
adamc@88 1463 end
adamc@88 1464
adamc@88 1465 fun projectConstraints env {sgn, str} =
adamc@88 1466 case #1 (hnormSgn env sgn) of
adamc@88 1467 SgnConst sgis => SOME (sgnSeekConstraints (str, sgis))
adamc@88 1468 | SgnError => SOME []
adamc@88 1469 | _ => NONE
adamc@34 1470
adamc@447 1471 fun edeclBinds env (d, loc) =
adamc@447 1472 case d of
adamc@447 1473 EDVal (x, t, _) => pushERel env x t
adamc@447 1474 | EDValRec vis => foldl (fn ((x, t, _), env) => pushERel env x t) env vis
adamc@447 1475
adamc@157 1476 fun declBinds env (d, loc) =
adamc@157 1477 case d of
adamc@157 1478 DCon (x, n, k, c) => pushCNamedAs env x n k (SOME c)
adamc@191 1479 | DDatatype (x, n, xs, xncs) =>
adamc@157 1480 let
adamc@297 1481 val k = (KType, loc)
adamc@297 1482 val nxs = length xs
adamc@297 1483 val (tb, kb) = ListUtil.foldli (fn (i, x', (tb, kb)) =>
adamc@297 1484 ((CApp (tb, (CRel (nxs - i - 1), loc)), loc),
adamc@297 1485 (KArrow (k, kb), loc)))
adamc@297 1486 ((CNamed n, loc), k) xs
adamc@297 1487
adamc@297 1488 val env = pushCNamedAs env x n kb NONE
adamc@191 1489 val env = pushDatatype env n xs xncs
adamc@157 1490 in
adamc@191 1491 foldl (fn ((x', n', to), env) =>
adamc@191 1492 let
adamc@191 1493 val t =
adamc@191 1494 case to of
adamc@297 1495 NONE => tb
adamc@297 1496 | SOME t => (TFun (t, tb), loc)
adamc@297 1497 val t = foldr (fn (x, t) => (TCFun (Implicit, x, k, t), loc)) t xs
adamc@191 1498 in
adamc@191 1499 pushENamedAs env x' n' t
adamc@191 1500 end)
adamc@191 1501 env xncs
adamc@157 1502 end
adamc@191 1503 | DDatatypeImp (x, n, m, ms, x', xs, xncs) =>
adamc@157 1504 let
adamc@157 1505 val t = (CModProj (m, ms, x'), loc)
adamc@297 1506 val k = (KType, loc)
adamc@297 1507 val nxs = length xs
adamc@297 1508 val (tb, kb) = ListUtil.foldli (fn (i, x', (tb, kb)) =>
adamc@297 1509 ((CApp (tb, (CRel (nxs - i - 1), loc)), loc),
adamc@297 1510 (KArrow (k, kb), loc)))
adamc@297 1511 ((CNamed n, loc), k) xs
adamc@297 1512
adamc@341 1513 val env = pushCNamedAs env x n kb (SOME t)
adamc@191 1514 val env = pushDatatype env n xs xncs
adamc@157 1515 in
adamc@191 1516 foldl (fn ((x', n', to), env) =>
adamc@191 1517 let
adamc@191 1518 val t =
adamc@191 1519 case to of
adamc@297 1520 NONE => tb
adamc@297 1521 | SOME t => (TFun (t, tb), loc)
adamc@297 1522 val t = foldr (fn (x, t) => (TCFun (Implicit, x, k, t), loc)) t xs
adamc@191 1523 in
adamc@191 1524 pushENamedAs env x' n' t
adamc@191 1525 end)
adamc@191 1526 env xncs
adamc@157 1527 end
adamc@157 1528 | DVal (x, n, t, _) => pushENamedAs env x n t
adamc@157 1529 | DValRec vis => foldl (fn ((x, n, t, _), env) => pushENamedAs env x n t) env vis
adamc@157 1530 | DSgn (x, n, sgn) => pushSgnNamedAs env x n sgn
adamc@157 1531 | DStr (x, n, sgn, _) => pushStrNamedAs env x n sgn
adamc@157 1532 | DFfiStr (x, n, sgn) => pushStrNamedAs env x n sgn
adamc@157 1533 | DConstraint _ => env
adamc@157 1534 | DExport _ => env
adamc@205 1535 | DTable (tn, x, n, c) =>
adamc@205 1536 let
adamc@338 1537 val t = (CApp ((CModProj (tn, [], "sql_table"), loc), c), loc)
adamc@338 1538 in
adamc@338 1539 pushENamedAs env x n t
adamc@338 1540 end
adamc@338 1541 | DSequence (tn, x, n) =>
adamc@338 1542 let
adamc@338 1543 val t = (CModProj (tn, [], "sql_sequence"), loc)
adamc@205 1544 in
adamc@205 1545 pushENamedAs env x n t
adamc@205 1546 end
adamc@563 1547 | DClass (x, n, k, c) =>
adamc@213 1548 let
adamc@563 1549 val k = (KArrow (k, (KType, loc)), loc)
adamc@213 1550 val env = pushCNamedAs env x n k (SOME c)
adamc@213 1551 in
adamc@213 1552 pushClass env n
adamc@213 1553 end
adamc@271 1554 | DDatabase _ => env
adamc@459 1555 | DCookie (tn, x, n, c) =>
adamc@459 1556 let
adamc@459 1557 val t = (CApp ((CModProj (tn, [], "cookie"), loc), c), loc)
adamc@459 1558 in
adamc@459 1559 pushENamedAs env x n t
adamc@459 1560 end
adamc@157 1561
adamc@243 1562 fun patBinds env (p, loc) =
adamc@243 1563 case p of
adamc@243 1564 PWild => env
adamc@243 1565 | PVar (x, t) => pushERel env x t
adamc@243 1566 | PPrim _ => env
adamc@243 1567 | PCon (_, _, _, NONE) => env
adamc@243 1568 | PCon (_, _, _, SOME p) => patBinds env p
adamc@243 1569 | PRecord xps => foldl (fn ((_, p, _), env) => patBinds env p) env xps
adamc@243 1570
adamc@2 1571 end