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annotate src/elab_util.sml @ 717:e28637743279

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author Adam Chlipala <adamc@hcoop.net>
date Thu, 09 Apr 2009 16:36:50 -0400
parents 7292bcb7c02d
children f152f215a02c
rev   line source
adamc@2 1 (* Copyright (c) 2008, 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 ElabUtil :> ELAB_UTIL = struct
adamc@2 29
adamc@2 30 open Elab
adamc@2 31
adamc@188 32 fun classifyDatatype xncs =
adamc@198 33 case xncs of
adamc@198 34 [(_, _, NONE), (_, _, SOME _)] => Option
adamc@198 35 | [(_, _, SOME _), (_, _, NONE)] => Option
adamc@198 36 | _ =>
adamc@198 37 if List.all (fn (_, _, NONE) => true | _ => false) xncs then
adamc@198 38 Enum
adamc@198 39 else
adamc@198 40 Default
adamc@188 41
adamc@2 42 structure S = Search
adamc@2 43
adamc@2 44 structure Kind = struct
adamc@2 45
adamc@623 46 fun mapfoldB {kind, bind} =
adamc@2 47 let
adamc@623 48 fun mfk ctx k acc =
adamc@623 49 S.bindP (mfk' ctx k acc, kind ctx)
adamc@2 50
adamc@623 51 and mfk' ctx (kAll as (k, loc)) =
adamc@2 52 case k of
adamc@2 53 KType => S.return2 kAll
adamc@2 54
adamc@2 55 | KArrow (k1, k2) =>
adamc@623 56 S.bind2 (mfk ctx k1,
adamc@2 57 fn k1' =>
adamc@623 58 S.map2 (mfk ctx k2,
adamc@2 59 fn k2' =>
adamc@2 60 (KArrow (k1', k2'), loc)))
adamc@2 61
adamc@2 62 | KName => S.return2 kAll
adamc@2 63
adamc@2 64 | KRecord k =>
adamc@623 65 S.map2 (mfk ctx k,
adamc@2 66 fn k' =>
adamc@2 67 (KRecord k', loc))
adamc@2 68
adamc@82 69 | KUnit => S.return2 kAll
adamc@82 70
adamc@207 71 | KTuple ks =>
adamc@623 72 S.map2 (ListUtil.mapfold (mfk ctx) ks,
adamc@207 73 fn ks' =>
adamc@207 74 (KTuple ks', loc))
adamc@207 75
adamc@2 76 | KError => S.return2 kAll
adamc@2 77
adamc@623 78 | KUnif (_, _, ref (SOME k)) => mfk' ctx k
adamc@2 79 | KUnif _ => S.return2 kAll
adamc@623 80
adamc@623 81 | KRel _ => S.return2 kAll
adamc@623 82 | KFun (x, k) =>
adamc@623 83 S.map2 (mfk (bind (ctx, x)) k,
adamc@623 84 fn k' =>
adamc@623 85 (KFun (x, k'), loc))
adamc@2 86 in
adamc@2 87 mfk
adamc@2 88 end
adamc@2 89
adamc@623 90 fun mapfold fk =
adamc@623 91 mapfoldB {kind = fn () => fk,
adamc@623 92 bind = fn ((), _) => ()} ()
adamc@623 93
adamc@623 94 fun mapB {kind, bind} ctx k =
adamc@623 95 case mapfoldB {kind = fn ctx => fn k => fn () => S.Continue (kind ctx k, ()),
adamc@623 96 bind = bind} ctx k () of
adamc@623 97 S.Continue (k, ()) => k
adamc@623 98 | S.Return _ => raise Fail "ElabUtil.Kind.mapB: Impossible"
adamc@623 99
adamc@2 100 fun exists f k =
adamc@6 101 case mapfold (fn k => fn () =>
adamc@6 102 if f k then
adamc@6 103 S.Return ()
adamc@6 104 else
adamc@6 105 S.Continue (k, ())) k () of
adamc@6 106 S.Return _ => true
adamc@6 107 | S.Continue _ => false
adamc@6 108
adamc@6 109 end
adamc@6 110
adamc@6 111 structure Con = struct
adamc@6 112
adamc@11 113 datatype binder =
adamc@623 114 RelK of string
adamc@623 115 | RelC of string * Elab.kind
adamc@623 116 | NamedC of string * int * Elab.kind
adamc@11 117
adamc@11 118 fun mapfoldB {kind = fk, con = fc, bind} =
adamc@6 119 let
adamc@623 120 val mfk = Kind.mapfoldB {kind = fk, bind = fn (ctx, s) => bind (ctx, RelK s)}
adamc@6 121
adamc@11 122 fun mfc ctx c acc =
adamc@11 123 S.bindP (mfc' ctx c acc, fc ctx)
adamc@6 124
adamc@11 125 and mfc' ctx (cAll as (c, loc)) =
adamc@6 126 case c of
adamc@6 127 TFun (c1, c2) =>
adamc@11 128 S.bind2 (mfc ctx c1,
adamc@6 129 fn c1' =>
adamc@11 130 S.map2 (mfc ctx c2,
adamc@6 131 fn c2' =>
adamc@6 132 (TFun (c1', c2'), loc)))
adamc@6 133 | TCFun (e, x, k, c) =>
adamc@623 134 S.bind2 (mfk ctx k,
adamc@6 135 fn k' =>
adamc@623 136 S.map2 (mfc (bind (ctx, RelC (x, k))) c,
adamc@6 137 fn c' =>
adamc@6 138 (TCFun (e, x, k', c'), loc)))
adamc@628 139 | TDisjoint (c1, c2, c3) =>
adamc@85 140 S.bind2 (mfc ctx c1,
adamc@85 141 fn c1' =>
adamc@85 142 S.bind2 (mfc ctx c2,
adamc@85 143 fn c2' =>
adamc@85 144 S.map2 (mfc ctx c3,
adamc@85 145 fn c3' =>
adamc@628 146 (TDisjoint (c1', c2', c3'), loc))))
adamc@6 147 | TRecord c =>
adamc@11 148 S.map2 (mfc ctx c,
adamc@6 149 fn c' =>
adamc@6 150 (TRecord c', loc))
adamc@6 151
adamc@6 152 | CRel _ => S.return2 cAll
adamc@6 153 | CNamed _ => S.return2 cAll
adamc@34 154 | CModProj _ => S.return2 cAll
adamc@6 155 | CApp (c1, c2) =>
adamc@11 156 S.bind2 (mfc ctx c1,
adamc@6 157 fn c1' =>
adamc@11 158 S.map2 (mfc ctx c2,
adamc@6 159 fn c2' =>
adamc@6 160 (CApp (c1', c2'), loc)))
adamc@8 161 | CAbs (x, k, c) =>
adamc@623 162 S.bind2 (mfk ctx k,
adamc@6 163 fn k' =>
adamc@623 164 S.map2 (mfc (bind (ctx, RelC (x, k))) c,
adamc@6 165 fn c' =>
adamc@8 166 (CAbs (x, k', c'), loc)))
adamc@6 167
adamc@6 168 | CName _ => S.return2 cAll
adamc@6 169
adamc@6 170 | CRecord (k, xcs) =>
adamc@623 171 S.bind2 (mfk ctx k,
adamc@6 172 fn k' =>
adamc@6 173 S.map2 (ListUtil.mapfold (fn (x, c) =>
adamc@11 174 S.bind2 (mfc ctx x,
adamc@6 175 fn x' =>
adamc@11 176 S.map2 (mfc ctx c,
adamc@6 177 fn c' =>
adamc@6 178 (x', c'))))
adamc@6 179 xcs,
adamc@6 180 fn xcs' =>
adamc@6 181 (CRecord (k', xcs'), loc)))
adamc@6 182 | CConcat (c1, c2) =>
adamc@11 183 S.bind2 (mfc ctx c1,
adamc@6 184 fn c1' =>
adamc@11 185 S.map2 (mfc ctx c2,
adamc@6 186 fn c2' =>
adamc@6 187 (CConcat (c1', c2'), loc)))
adamc@621 188 | CMap (k1, k2) =>
adamc@623 189 S.bind2 (mfk ctx k1,
adamc@67 190 fn k1' =>
adamc@623 191 S.map2 (mfk ctx k2,
adamc@67 192 fn k2' =>
adamc@621 193 (CMap (k1', k2'), loc)))
adamc@6 194
adamc@82 195 | CUnit => S.return2 cAll
adamc@82 196
adamc@207 197 | CTuple cs =>
adamc@207 198 S.map2 (ListUtil.mapfold (mfc ctx) cs,
adamc@207 199 fn cs' =>
adamc@207 200 (CTuple cs', loc))
adamc@207 201
adamc@207 202 | CProj (c, n) =>
adamc@207 203 S.map2 (mfc ctx c,
adamc@207 204 fn c' =>
adamc@207 205 (CProj (c', n), loc))
adamc@207 206
adamc@6 207 | CError => S.return2 cAll
adamc@76 208 | CUnif (_, _, _, ref (SOME c)) => mfc' ctx c
adamc@6 209 | CUnif _ => S.return2 cAll
adamc@623 210
adamc@623 211 | CKAbs (x, c) =>
adamc@623 212 S.map2 (mfc (bind (ctx, RelK x)) c,
adamc@623 213 fn c' =>
adamc@623 214 (CKAbs (x, c'), loc))
adamc@623 215 | CKApp (c, k) =>
adamc@623 216 S.bind2 (mfc ctx c,
adamc@623 217 fn c' =>
adamc@623 218 S.map2 (mfk ctx k,
adamc@623 219 fn k' =>
adamc@623 220 (CKApp (c', k'), loc)))
adamc@623 221 | TKFun (x, c) =>
adamc@623 222 S.map2 (mfc (bind (ctx, RelK x)) c,
adamc@623 223 fn c' =>
adamc@623 224 (TKFun (x, c'), loc))
adamc@6 225 in
adamc@6 226 mfc
adamc@6 227 end
adamc@6 228
adamc@11 229 fun mapfold {kind = fk, con = fc} =
adamc@623 230 mapfoldB {kind = fn () => fk,
adamc@11 231 con = fn () => fc,
adamc@11 232 bind = fn ((), _) => ()} ()
adamc@11 233
adamc@11 234 fun mapB {kind, con, bind} ctx c =
adamc@623 235 case mapfoldB {kind = fn ctx => fn k => fn () => S.Continue (kind ctx k, ()),
adamc@11 236 con = fn ctx => fn c => fn () => S.Continue (con ctx c, ()),
adamc@11 237 bind = bind} ctx c () of
adamc@11 238 S.Continue (c, ()) => c
adamc@34 239 | S.Return _ => raise Fail "ElabUtil.Con.mapB: Impossible"
adamc@34 240
adamc@34 241 fun map {kind, con} s =
adamc@34 242 case mapfold {kind = fn k => fn () => S.Continue (kind k, ()),
adamc@34 243 con = fn c => fn () => S.Continue (con c, ())} s () of
adamc@34 244 S.Return () => raise Fail "ElabUtil.Con.map: Impossible"
adamc@34 245 | S.Continue (s, ()) => s
adamc@11 246
adamc@711 247 fun existsB {kind, con, bind} ctx c =
adamc@711 248 case mapfoldB {kind = fn ctx => fn k => fn () =>
adamc@711 249 if kind (ctx, k) then
adamc@711 250 S.Return ()
adamc@711 251 else
adamc@711 252 S.Continue (k, ()),
adamc@711 253 con = fn ctx => fn c => fn () =>
adamc@711 254 if con (ctx, c) then
adamc@711 255 S.Return ()
adamc@711 256 else
adamc@711 257 S.Continue (c, ()),
adamc@711 258 bind = bind} ctx c () of
adamc@711 259 S.Return _ => true
adamc@711 260 | S.Continue _ => false
adamc@711 261
adamc@711 262 fun exists {kind, con} c =
adamc@6 263 case mapfold {kind = fn k => fn () =>
adamc@6 264 if kind k then
adamc@6 265 S.Return ()
adamc@6 266 else
adamc@6 267 S.Continue (k, ()),
adamc@6 268 con = fn c => fn () =>
adamc@6 269 if con c then
adamc@6 270 S.Return ()
adamc@6 271 else
adamc@711 272 S.Continue (c, ())} c () of
adamc@2 273 S.Return _ => true
adamc@2 274 | S.Continue _ => false
adamc@2 275
adamc@448 276 fun foldB {kind, con, bind} ctx st c =
adamc@623 277 case mapfoldB {kind = fn ctx => fn k => fn st => S.Continue (k, kind (ctx, k, st)),
adamc@448 278 con = fn ctx => fn c => fn st => S.Continue (c, con (ctx, c, st)),
adamc@448 279 bind = bind} ctx c st of
adamc@448 280 S.Continue (_, st) => st
adamc@448 281 | S.Return _ => raise Fail "ElabUtil.Con.foldB: Impossible"
adamc@448 282
adamc@2 283 end
adamc@2 284
adamc@10 285 structure Exp = struct
adamc@10 286
adamc@11 287 datatype binder =
adamc@623 288 RelK of string
adamc@623 289 | RelC of string * Elab.kind
adamc@329 290 | NamedC of string * int * Elab.kind
adamc@11 291 | RelE of string * Elab.con
adamc@11 292 | NamedE of string * Elab.con
adamc@11 293
adamc@11 294 fun mapfoldB {kind = fk, con = fc, exp = fe, bind} =
adamc@10 295 let
adamc@623 296 val mfk = Kind.mapfoldB {kind = fk, bind = fn (ctx, x) => bind (ctx, RelK x)}
adamc@10 297
adamc@11 298 fun bind' (ctx, b) =
adamc@11 299 let
adamc@11 300 val b' = case b of
adamc@623 301 Con.RelK x => RelK x
adamc@623 302 | Con.RelC x => RelC x
adamc@623 303 | Con.NamedC x => NamedC x
adamc@11 304 in
adamc@11 305 bind (ctx, b')
adamc@11 306 end
adamc@11 307 val mfc = Con.mapfoldB {kind = fk, con = fc, bind = bind'}
adamc@10 308
adamc@11 309 fun mfe ctx e acc =
adamc@11 310 S.bindP (mfe' ctx e acc, fe ctx)
adamc@11 311
adamc@11 312 and mfe' ctx (eAll as (e, loc)) =
adamc@10 313 case e of
adamc@14 314 EPrim _ => S.return2 eAll
adamc@14 315 | ERel _ => S.return2 eAll
adamc@10 316 | ENamed _ => S.return2 eAll
adamc@34 317 | EModProj _ => S.return2 eAll
adamc@10 318 | EApp (e1, e2) =>
adamc@11 319 S.bind2 (mfe ctx e1,
adamc@10 320 fn e1' =>
adamc@11 321 S.map2 (mfe ctx e2,
adamc@10 322 fn e2' =>
adamc@10 323 (EApp (e1', e2'), loc)))
adamc@26 324 | EAbs (x, dom, ran, e) =>
adamc@26 325 S.bind2 (mfc ctx dom,
adamc@26 326 fn dom' =>
adamc@26 327 S.bind2 (mfc ctx ran,
adamc@26 328 fn ran' =>
adamc@26 329 S.map2 (mfe (bind (ctx, RelE (x, dom'))) e,
adamc@26 330 fn e' =>
adamc@26 331 (EAbs (x, dom', ran', e'), loc))))
adamc@26 332
adamc@10 333 | ECApp (e, c) =>
adamc@11 334 S.bind2 (mfe ctx e,
adamc@10 335 fn e' =>
adamc@11 336 S.map2 (mfc ctx c,
adamc@10 337 fn c' =>
adamc@10 338 (ECApp (e', c'), loc)))
adamc@10 339 | ECAbs (expl, x, k, e) =>
adamc@623 340 S.bind2 (mfk ctx k,
adamc@10 341 fn k' =>
adamc@11 342 S.map2 (mfe (bind (ctx, RelC (x, k))) e,
adamc@10 343 fn e' =>
adamc@10 344 (ECAbs (expl, x, k', e'), loc)))
adamc@10 345
adamc@12 346 | ERecord xes =>
adamc@29 347 S.map2 (ListUtil.mapfold (fn (x, e, t) =>
adamc@12 348 S.bind2 (mfc ctx x,
adamc@12 349 fn x' =>
adamc@29 350 S.bind2 (mfe ctx e,
adamc@12 351 fn e' =>
adamc@29 352 S.map2 (mfc ctx t,
adamc@29 353 fn t' =>
adamc@29 354 (x', e', t')))))
adamc@12 355 xes,
adamc@12 356 fn xes' =>
adamc@12 357 (ERecord xes', loc))
adamc@12 358 | EField (e, c, {field, rest}) =>
adamc@12 359 S.bind2 (mfe ctx e,
adamc@12 360 fn e' =>
adamc@12 361 S.bind2 (mfc ctx c,
adamc@12 362 fn c' =>
adamc@12 363 S.bind2 (mfc ctx field,
adamc@12 364 fn field' =>
adamc@12 365 S.map2 (mfc ctx rest,
adamc@12 366 fn rest' =>
adamc@12 367 (EField (e', c', {field = field', rest = rest'}), loc)))))
adamc@445 368 | EConcat (e1, c1, e2, c2) =>
adamc@339 369 S.bind2 (mfe ctx e1,
adamc@339 370 fn e1' =>
adamc@445 371 S.bind2 (mfc ctx c1,
adamc@445 372 fn c1' =>
adamc@339 373 S.bind2 (mfe ctx e2,
adamc@339 374 fn e2' =>
adamc@445 375 S.map2 (mfc ctx c2,
adamc@445 376 fn c2' =>
adamc@445 377 (EConcat (e1', c1', e2', c2'),
adamc@445 378 loc)))))
adamc@149 379 | ECut (e, c, {field, rest}) =>
adamc@149 380 S.bind2 (mfe ctx e,
adamc@149 381 fn e' =>
adamc@149 382 S.bind2 (mfc ctx c,
adamc@149 383 fn c' =>
adamc@149 384 S.bind2 (mfc ctx field,
adamc@149 385 fn field' =>
adamc@149 386 S.map2 (mfc ctx rest,
adamc@149 387 fn rest' =>
adamc@149 388 (ECut (e', c', {field = field', rest = rest'}), loc)))))
adamc@12 389
adamc@493 390 | ECutMulti (e, c, {rest}) =>
adamc@493 391 S.bind2 (mfe ctx e,
adamc@493 392 fn e' =>
adamc@493 393 S.bind2 (mfc ctx c,
adamc@493 394 fn c' =>
adamc@493 395 S.map2 (mfc ctx rest,
adamc@493 396 fn rest' =>
adamc@493 397 (ECutMulti (e', c', {rest = rest'}), loc))))
adamc@493 398
adamc@182 399 | ECase (e, pes, {disc, result}) =>
adamc@171 400 S.bind2 (mfe ctx e,
adamc@171 401 fn e' =>
adamc@171 402 S.bind2 (ListUtil.mapfold (fn (p, e) =>
adamc@448 403 let
adamc@448 404 fun pb ((p, _), ctx) =
adamc@448 405 case p of
adamc@448 406 PWild => ctx
adamc@448 407 | PVar (x, t) => bind (ctx, RelE (x, t))
adamc@448 408 | PPrim _ => ctx
adamc@448 409 | PCon (_, _, _, NONE) => ctx
adamc@448 410 | PCon (_, _, _, SOME p) => pb (p, ctx)
adamc@448 411 | PRecord xps => foldl (fn ((_, p, _), ctx) =>
adamc@448 412 pb (p, ctx)) ctx xps
adamc@448 413 in
adamc@448 414 S.map2 (mfe (pb (p, ctx)) e,
adamc@448 415 fn e' => (p, e'))
adamc@448 416 end) pes,
adamc@171 417 fn pes' =>
adamc@182 418 S.bind2 (mfc ctx disc,
adamc@182 419 fn disc' =>
adamc@182 420 S.map2 (mfc ctx result,
adamc@182 421 fn result' =>
adamc@182 422 (ECase (e', pes', {disc = disc', result = result'}), loc)))))
adamc@171 423
adamc@10 424 | EError => S.return2 eAll
adamc@228 425 | EUnif (ref (SOME e)) => mfe ctx e
adamc@228 426 | EUnif _ => S.return2 eAll
adamc@447 427
adamc@447 428 | ELet (des, e) =>
adamc@447 429 let
adamc@447 430 val (des, ctx) = foldl (fn (ed, (des, ctx)) =>
adamc@453 431 let
adamc@453 432 val ctx' =
adamc@453 433 case #1 ed of
adamc@453 434 EDVal (x, t, _) => bind (ctx, RelE (x, t))
adamc@453 435 | EDValRec vis =>
adamc@453 436 foldl (fn ((x, t, _), ctx) => bind (ctx, RelE (x, t))) ctx vis
adamc@453 437 in
adamc@453 438 (S.bind2 (des,
adamc@453 439 fn des' =>
adamc@453 440 S.map2 (mfed ctx ed,
adamc@447 441 fn ed' => des' @ [ed'])),
adamc@453 442 ctx')
adamc@453 443 end)
adamc@447 444 (S.return2 [], ctx) des
adamc@447 445 in
adamc@447 446 S.bind2 (des,
adamc@447 447 fn des' =>
adamc@447 448 S.map2 (mfe ctx e,
adamc@447 449 fn e' =>
adamc@447 450 (ELet (des', e'), loc)))
adamc@447 451 end
adamc@447 452
adamc@623 453 | EKAbs (x, e) =>
adamc@623 454 S.map2 (mfe (bind (ctx, RelK x)) e,
adamc@623 455 fn e' =>
adamc@623 456 (EKAbs (x, e'), loc))
adamc@623 457 | EKApp (e, k) =>
adamc@623 458 S.bind2 (mfe ctx e,
adamc@623 459 fn e' =>
adamc@623 460 S.map2 (mfk ctx k,
adamc@623 461 fn k' =>
adamc@623 462 (EKApp (e', k'), loc)))
adamc@623 463
adamc@447 464 and mfed ctx (dAll as (d, loc)) =
adamc@447 465 case d of
adamc@447 466 EDVal vi =>
adamc@447 467 S.map2 (mfvi ctx vi,
adamc@447 468 fn vi' =>
adamc@447 469 (EDVal vi', loc))
adamc@447 470 | EDValRec vis =>
adamc@447 471 let
adamc@453 472 val ctx = foldl (fn ((x, t, _), ctx) => bind (ctx, RelE (x, t))) ctx vis
adamc@447 473 in
adamc@447 474 S.map2 (ListUtil.mapfold (mfvi ctx) vis,
adamc@447 475 fn vis' =>
adamc@447 476 (EDValRec vis', loc))
adamc@447 477 end
adamc@447 478
adamc@447 479 and mfvi ctx (x, c, e) =
adamc@447 480 S.bind2 (mfc ctx c,
adamc@447 481 fn c' =>
adamc@447 482 S.map2 (mfe ctx e,
adamc@447 483 fn e' =>
adamc@447 484 (x, c', e')))
adamc@10 485 in
adamc@10 486 mfe
adamc@10 487 end
adamc@10 488
adamc@11 489 fun mapfold {kind = fk, con = fc, exp = fe} =
adamc@623 490 mapfoldB {kind = fn () => fk,
adamc@11 491 con = fn () => fc,
adamc@11 492 exp = fn () => fe,
adamc@11 493 bind = fn ((), _) => ()} ()
adamc@11 494
adamc@10 495 fun exists {kind, con, exp} k =
adamc@10 496 case mapfold {kind = fn k => fn () =>
adamc@10 497 if kind k then
adamc@10 498 S.Return ()
adamc@10 499 else
adamc@10 500 S.Continue (k, ()),
adamc@10 501 con = fn c => fn () =>
adamc@10 502 if con c then
adamc@10 503 S.Return ()
adamc@10 504 else
adamc@10 505 S.Continue (c, ()),
adamc@10 506 exp = fn e => fn () =>
adamc@10 507 if exp e then
adamc@10 508 S.Return ()
adamc@10 509 else
adamc@10 510 S.Continue (e, ())} k () of
adamc@10 511 S.Return _ => true
adamc@10 512 | S.Continue _ => false
adamc@10 513
adamc@211 514 fun mapB {kind, con, exp, bind} ctx e =
adamc@623 515 case mapfoldB {kind = fn ctx => fn k => fn () => S.Continue (kind ctx k, ()),
adamc@211 516 con = fn ctx => fn c => fn () => S.Continue (con ctx c, ()),
adamc@211 517 exp = fn ctx => fn e => fn () => S.Continue (exp ctx e, ()),
adamc@211 518 bind = bind} ctx e () of
adamc@211 519 S.Continue (e, ()) => e
adamc@211 520 | S.Return _ => raise Fail "ElabUtil.Exp.mapB: Impossible"
adamc@211 521
adamc@448 522 fun foldB {kind, con, exp, bind} ctx st e =
adamc@623 523 case mapfoldB {kind = fn ctx => fn k => fn st => S.Continue (k, kind (ctx, k, st)),
adamc@448 524 con = fn ctx => fn c => fn st => S.Continue (c, con (ctx, c, st)),
adamc@448 525 exp = fn ctx => fn e => fn st => S.Continue (e, exp (ctx, e, st)),
adamc@448 526 bind = bind} ctx e st of
adamc@448 527 S.Continue (_, st) => st
adamc@448 528 | S.Return _ => raise Fail "ElabUtil.Exp.foldB: Impossible"
adamc@448 529
adamc@10 530 end
adamc@10 531
adamc@34 532 structure Sgn = struct
adamc@34 533
adamc@34 534 datatype binder =
adamc@623 535 RelK of string
adamc@623 536 | RelC of string * Elab.kind
adamc@329 537 | NamedC of string * int * Elab.kind
adamc@34 538 | Str of string * Elab.sgn
adamc@59 539 | Sgn of string * Elab.sgn
adamc@34 540
adamc@34 541 fun mapfoldB {kind, con, sgn_item, sgn, bind} =
adamc@34 542 let
adamc@34 543 fun bind' (ctx, b) =
adamc@34 544 let
adamc@34 545 val b' = case b of
adamc@623 546 Con.RelK x => RelK x
adamc@623 547 | Con.RelC x => RelC x
adamc@623 548 | Con.NamedC x => NamedC x
adamc@34 549 in
adamc@34 550 bind (ctx, b')
adamc@34 551 end
adamc@34 552 val con = Con.mapfoldB {kind = kind, con = con, bind = bind'}
adamc@34 553
adamc@623 554 val kind = Kind.mapfoldB {kind = kind, bind = fn (ctx, x) => bind (ctx, RelK x)}
adamc@34 555
adamc@34 556 fun sgi ctx si acc =
adamc@34 557 S.bindP (sgi' ctx si acc, sgn_item ctx)
adamc@34 558
adamc@156 559 and sgi' ctx (siAll as (si, loc)) =
adamc@34 560 case si of
adamc@34 561 SgiConAbs (x, n, k) =>
adamc@623 562 S.map2 (kind ctx k,
adamc@34 563 fn k' =>
adamc@34 564 (SgiConAbs (x, n, k'), loc))
adamc@34 565 | SgiCon (x, n, k, c) =>
adamc@623 566 S.bind2 (kind ctx k,
adamc@34 567 fn k' =>
adamc@34 568 S.map2 (con ctx c,
adamc@34 569 fn c' =>
adamc@34 570 (SgiCon (x, n, k', c'), loc)))
adamc@191 571 | SgiDatatype (x, n, xs, xncs) =>
adamc@156 572 S.map2 (ListUtil.mapfold (fn (x, n, c) =>
adamc@156 573 case c of
adamc@156 574 NONE => S.return2 (x, n, c)
adamc@156 575 | SOME c =>
adamc@156 576 S.map2 (con ctx c,
adamc@156 577 fn c' => (x, n, SOME c'))) xncs,
adamc@156 578 fn xncs' =>
adamc@191 579 (SgiDatatype (x, n, xs, xncs'), loc))
adamc@191 580 | SgiDatatypeImp (x, n, m1, ms, s, xs, xncs) =>
adamc@162 581 S.map2 (ListUtil.mapfold (fn (x, n, c) =>
adamc@162 582 case c of
adamc@162 583 NONE => S.return2 (x, n, c)
adamc@162 584 | SOME c =>
adamc@162 585 S.map2 (con ctx c,
adamc@162 586 fn c' => (x, n, SOME c'))) xncs,
adamc@162 587 fn xncs' =>
adamc@191 588 (SgiDatatypeImp (x, n, m1, ms, s, xs, xncs'), loc))
adamc@34 589 | SgiVal (x, n, c) =>
adamc@34 590 S.map2 (con ctx c,
adamc@34 591 fn c' =>
adamc@34 592 (SgiVal (x, n, c'), loc))
adamc@34 593 | SgiStr (x, n, s) =>
adamc@34 594 S.map2 (sg ctx s,
adamc@34 595 fn s' =>
adamc@34 596 (SgiStr (x, n, s'), loc))
adamc@59 597 | SgiSgn (x, n, s) =>
adamc@59 598 S.map2 (sg ctx s,
adamc@59 599 fn s' =>
adamc@59 600 (SgiSgn (x, n, s'), loc))
adamc@88 601 | SgiConstraint (c1, c2) =>
adamc@88 602 S.bind2 (con ctx c1,
adamc@88 603 fn c1' =>
adamc@88 604 S.map2 (con ctx c2,
adamc@88 605 fn c2' =>
adamc@88 606 (SgiConstraint (c1', c2'), loc)))
adamc@563 607 | SgiClassAbs (x, n, k) =>
adamc@623 608 S.map2 (kind ctx k,
adamc@563 609 fn k' =>
adamc@563 610 (SgiClassAbs (x, n, k'), loc))
adamc@563 611 | SgiClass (x, n, k, c) =>
adamc@623 612 S.bind2 (kind ctx k,
adamc@563 613 fn k' =>
adamc@563 614 S.map2 (con ctx c,
adamc@563 615 fn c' =>
adamc@563 616 (SgiClass (x, n, k', c'), loc)))
adamc@34 617
adamc@34 618 and sg ctx s acc =
adamc@34 619 S.bindP (sg' ctx s acc, sgn ctx)
adamc@34 620
adamc@34 621 and sg' ctx (sAll as (s, loc)) =
adamc@34 622 case s of
adamc@34 623 SgnConst sgis =>
adamc@34 624 S.map2 (ListUtil.mapfoldB (fn (ctx, si) =>
adamc@34 625 (case #1 si of
adamc@329 626 SgiConAbs (x, n, k) =>
adamc@329 627 bind (ctx, NamedC (x, n, k))
adamc@329 628 | SgiCon (x, n, k, _) =>
adamc@329 629 bind (ctx, NamedC (x, n, k))
adamc@191 630 | SgiDatatype (x, n, _, xncs) =>
adamc@329 631 bind (ctx, NamedC (x, n, (KType, loc)))
adamc@329 632 | SgiDatatypeImp (x, n, _, _, _, _, _) =>
adamc@329 633 bind (ctx, NamedC (x, n, (KType, loc)))
adamc@34 634 | SgiVal _ => ctx
adamc@34 635 | SgiStr (x, _, sgn) =>
adamc@59 636 bind (ctx, Str (x, sgn))
adamc@59 637 | SgiSgn (x, _, sgn) =>
adamc@88 638 bind (ctx, Sgn (x, sgn))
adamc@203 639 | SgiConstraint _ => ctx
adamc@563 640 | SgiClassAbs (x, n, k) =>
adamc@563 641 bind (ctx, NamedC (x, n, (KArrow (k, (KType, loc)), loc)))
adamc@563 642 | SgiClass (x, n, k, _) =>
adamc@563 643 bind (ctx, NamedC (x, n, (KArrow (k, (KType, loc)), loc))),
adamc@34 644 sgi ctx si)) ctx sgis,
adamc@34 645 fn sgis' =>
adamc@34 646 (SgnConst sgis', loc))
adamc@34 647
adamc@34 648 | SgnVar _ => S.return2 sAll
adamc@41 649 | SgnFun (m, n, s1, s2) =>
adamc@41 650 S.bind2 (sg ctx s1,
adamc@41 651 fn s1' =>
adamc@41 652 S.map2 (sg (bind (ctx, Str (m, s1'))) s2,
adamc@41 653 fn s2' =>
adamc@41 654 (SgnFun (m, n, s1', s2'), loc)))
adamc@59 655 | SgnProj _ => S.return2 sAll
adamc@42 656 | SgnWhere (sgn, x, c) =>
adamc@42 657 S.bind2 (sg ctx sgn,
adamc@42 658 fn sgn' =>
adamc@42 659 S.map2 (con ctx c,
adamc@42 660 fn c' =>
adamc@42 661 (SgnWhere (sgn', x, c'), loc)))
adamc@34 662 | SgnError => S.return2 sAll
adamc@34 663 in
adamc@34 664 sg
adamc@34 665 end
adamc@34 666
adamc@34 667 fun mapfold {kind, con, sgn_item, sgn} =
adamc@623 668 mapfoldB {kind = fn () => kind,
adamc@34 669 con = fn () => con,
adamc@34 670 sgn_item = fn () => sgn_item,
adamc@34 671 sgn = fn () => sgn,
adamc@34 672 bind = fn ((), _) => ()} ()
adamc@34 673
adamc@34 674 fun map {kind, con, sgn_item, sgn} s =
adamc@34 675 case mapfold {kind = fn k => fn () => S.Continue (kind k, ()),
adamc@34 676 con = fn c => fn () => S.Continue (con c, ()),
adamc@34 677 sgn_item = fn si => fn () => S.Continue (sgn_item si, ()),
adamc@34 678 sgn = fn s => fn () => S.Continue (sgn s, ())} s () of
adamc@34 679 S.Return () => raise Fail "Elab_util.Sgn.map"
adamc@34 680 | S.Continue (s, ()) => s
adamc@34 681
adamc@2 682 end
adamc@34 683
adamc@76 684 structure Decl = struct
adamc@76 685
adamc@76 686 datatype binder =
adamc@623 687 RelK of string
adamc@623 688 | RelC of string * Elab.kind
adamc@329 689 | NamedC of string * int * Elab.kind
adamc@76 690 | RelE of string * Elab.con
adamc@76 691 | NamedE of string * Elab.con
adamc@76 692 | Str of string * Elab.sgn
adamc@76 693 | Sgn of string * Elab.sgn
adamc@76 694
adamc@76 695 fun mapfoldB {kind = fk, con = fc, exp = fe, sgn_item = fsgi, sgn = fsg, str = fst, decl = fd, bind} =
adamc@76 696 let
adamc@623 697 val mfk = Kind.mapfoldB {kind = fk, bind = fn (ctx, x) => bind (ctx, RelK x)}
adamc@76 698
adamc@76 699 fun bind' (ctx, b) =
adamc@76 700 let
adamc@76 701 val b' = case b of
adamc@623 702 Con.RelK x => RelK x
adamc@623 703 | Con.RelC x => RelC x
adamc@623 704 | Con.NamedC x => NamedC x
adamc@76 705 in
adamc@76 706 bind (ctx, b')
adamc@76 707 end
adamc@76 708 val mfc = Con.mapfoldB {kind = fk, con = fc, bind = bind'}
adamc@76 709
adamc@76 710 fun bind' (ctx, b) =
adamc@76 711 let
adamc@76 712 val b' = case b of
adamc@623 713 Exp.RelK x => RelK x
adamc@623 714 | Exp.RelC x => RelC x
adamc@76 715 | Exp.NamedC x => NamedC x
adamc@76 716 | Exp.RelE x => RelE x
adamc@76 717 | Exp.NamedE x => NamedE x
adamc@76 718 in
adamc@76 719 bind (ctx, b')
adamc@76 720 end
adamc@76 721 val mfe = Exp.mapfoldB {kind = fk, con = fc, exp = fe, bind = bind'}
adamc@76 722
adamc@76 723 fun bind' (ctx, b) =
adamc@76 724 let
adamc@76 725 val b' = case b of
adamc@623 726 Sgn.RelK x => RelK x
adamc@623 727 | Sgn.RelC x => RelC x
adamc@76 728 | Sgn.NamedC x => NamedC x
adamc@76 729 | Sgn.Sgn x => Sgn x
adamc@76 730 | Sgn.Str x => Str x
adamc@76 731 in
adamc@76 732 bind (ctx, b')
adamc@76 733 end
adamc@76 734 val mfsg = Sgn.mapfoldB {kind = fk, con = fc, sgn_item = fsgi, sgn = fsg, bind = bind'}
adamc@76 735
adamc@76 736 fun mfst ctx str acc =
adamc@76 737 S.bindP (mfst' ctx str acc, fst ctx)
adamc@76 738
adamc@76 739 and mfst' ctx (strAll as (str, loc)) =
adamc@76 740 case str of
adamc@76 741 StrConst ds =>
adamc@76 742 S.map2 (ListUtil.mapfoldB (fn (ctx, d) =>
adamc@76 743 (case #1 d of
adamc@329 744 DCon (x, n, k, _) =>
adamc@329 745 bind (ctx, NamedC (x, n, k))
adamc@191 746 | DDatatype (x, n, xs, xncs) =>
adamc@156 747 let
adamc@329 748 val ctx = bind (ctx, NamedC (x, n, (KType, loc)))
adamc@156 749 in
adamc@156 750 foldl (fn ((x, _, co), ctx) =>
adamc@156 751 let
adamc@156 752 val t =
adamc@156 753 case co of
adamc@156 754 NONE => CNamed n
adamc@156 755 | SOME t => TFun (t, (CNamed n, loc))
adamc@191 756
adamc@191 757 val k = (KType, loc)
adamc@191 758 val t = (t, loc)
adamc@191 759 val t = foldr (fn (x, t) =>
adamc@191 760 (TCFun (Explicit,
adamc@191 761 x,
adamc@191 762 k,
adamc@191 763 t), loc))
adamc@191 764 t xs
adamc@156 765 in
adamc@191 766 bind (ctx, NamedE (x, t))
adamc@156 767 end)
adamc@156 768 ctx xncs
adamc@156 769 end
adamc@191 770 | DDatatypeImp (x, n, m, ms, x', _, _) =>
adamc@329 771 bind (ctx, NamedC (x, n, (KType, loc)))
adamc@76 772 | DVal (x, _, c, _) =>
adamc@76 773 bind (ctx, NamedE (x, c))
adamc@123 774 | DValRec vis =>
adamc@123 775 foldl (fn ((x, _, c, _), ctx) => bind (ctx, NamedE (x, c))) ctx vis
adamc@76 776 | DSgn (x, _, sgn) =>
adamc@76 777 bind (ctx, Sgn (x, sgn))
adamc@76 778 | DStr (x, _, sgn, _) =>
adamc@76 779 bind (ctx, Str (x, sgn))
adamc@76 780 | DFfiStr (x, _, sgn) =>
adamc@88 781 bind (ctx, Str (x, sgn))
adamc@100 782 | DConstraint _ => ctx
adamc@203 783 | DExport _ => ctx
adamc@707 784 | DTable (tn, x, n, c, _, pc, _, cc) =>
adamc@705 785 let
adamc@705 786 val ct = (CModProj (n, [], "sql_table"), loc)
adamc@705 787 val ct = (CApp (ct, c), loc)
adamc@707 788 val ct = (CApp (ct, (CConcat (pc, cc), loc)), loc)
adamc@705 789 in
adamc@705 790 bind (ctx, NamedE (x, ct))
adamc@705 791 end
adamc@338 792 | DSequence (tn, x, n) =>
adamc@338 793 bind (ctx, NamedE (x, (CModProj (n, [], "sql_sequence"), loc)))
adamc@563 794 | DClass (x, n, k, _) =>
adamc@563 795 bind (ctx, NamedC (x, n, (KArrow (k, (KType, loc)), loc)))
adamc@459 796 | DDatabase _ => ctx
adamc@459 797 | DCookie (tn, x, n, c) =>
adamc@459 798 bind (ctx, NamedE (x, (CApp ((CModProj (n, [], "cookie"), loc),
adamc@459 799 c), loc))),
adamc@76 800 mfd ctx d)) ctx ds,
adamc@76 801 fn ds' => (StrConst ds', loc))
adamc@76 802 | StrVar _ => S.return2 strAll
adamc@76 803 | StrProj (str, x) =>
adamc@76 804 S.map2 (mfst ctx str,
adamc@76 805 fn str' =>
adamc@76 806 (StrProj (str', x), loc))
adamc@76 807 | StrFun (x, n, sgn1, sgn2, str) =>
adamc@76 808 S.bind2 (mfsg ctx sgn1,
adamc@76 809 fn sgn1' =>
adamc@76 810 S.bind2 (mfsg ctx sgn2,
adamc@76 811 fn sgn2' =>
adamc@76 812 S.map2 (mfst ctx str,
adamc@76 813 fn str' =>
adamc@76 814 (StrFun (x, n, sgn1', sgn2', str'), loc))))
adamc@76 815 | StrApp (str1, str2) =>
adamc@76 816 S.bind2 (mfst ctx str1,
adamc@76 817 fn str1' =>
adamc@76 818 S.map2 (mfst ctx str2,
adamc@76 819 fn str2' =>
adamc@76 820 (StrApp (str1', str2'), loc)))
adamc@76 821 | StrError => S.return2 strAll
adamc@76 822
adamc@76 823 and mfd ctx d acc =
adamc@76 824 S.bindP (mfd' ctx d acc, fd ctx)
adamc@76 825
adamc@76 826 and mfd' ctx (dAll as (d, loc)) =
adamc@76 827 case d of
adamc@76 828 DCon (x, n, k, c) =>
adamc@623 829 S.bind2 (mfk ctx k,
adamc@76 830 fn k' =>
adamc@76 831 S.map2 (mfc ctx c,
adamc@76 832 fn c' =>
adamc@76 833 (DCon (x, n, k', c'), loc)))
adamc@191 834 | DDatatype (x, n, xs, xncs) =>
adamc@156 835 S.map2 (ListUtil.mapfold (fn (x, n, c) =>
adamc@156 836 case c of
adamc@156 837 NONE => S.return2 (x, n, c)
adamc@156 838 | SOME c =>
adamc@156 839 S.map2 (mfc ctx c,
adamc@156 840 fn c' => (x, n, SOME c'))) xncs,
adamc@156 841 fn xncs' =>
adamc@191 842 (DDatatype (x, n, xs, xncs'), loc))
adamc@191 843 | DDatatypeImp (x, n, m1, ms, s, xs, xncs) =>
adamc@162 844 S.map2 (ListUtil.mapfold (fn (x, n, c) =>
adamc@162 845 case c of
adamc@162 846 NONE => S.return2 (x, n, c)
adamc@162 847 | SOME c =>
adamc@162 848 S.map2 (mfc ctx c,
adamc@162 849 fn c' => (x, n, SOME c'))) xncs,
adamc@162 850 fn xncs' =>
adamc@191 851 (DDatatypeImp (x, n, m1, ms, s, xs, xncs'), loc))
adamc@123 852 | DVal vi =>
adamc@123 853 S.map2 (mfvi ctx vi,
adamc@123 854 fn vi' =>
adamc@123 855 (DVal vi', loc))
adamc@123 856 | DValRec vis =>
adamc@123 857 S.map2 (ListUtil.mapfold (mfvi ctx) vis,
adamc@123 858 fn vis' =>
adamc@123 859 (DValRec vis', loc))
adamc@76 860 | DSgn (x, n, sgn) =>
adamc@76 861 S.map2 (mfsg ctx sgn,
adamc@76 862 fn sgn' =>
adamc@76 863 (DSgn (x, n, sgn'), loc))
adamc@76 864 | DStr (x, n, sgn, str) =>
adamc@76 865 S.bind2 (mfsg ctx sgn,
adamc@76 866 fn sgn' =>
adamc@76 867 S.map2 (mfst ctx str,
adamc@76 868 fn str' =>
adamc@76 869 (DStr (x, n, sgn', str'), loc)))
adamc@76 870 | DFfiStr (x, n, sgn) =>
adamc@76 871 S.map2 (mfsg ctx sgn,
adamc@76 872 fn sgn' =>
adamc@76 873 (DFfiStr (x, n, sgn'), loc))
adamc@88 874 | DConstraint (c1, c2) =>
adamc@88 875 S.bind2 (mfc ctx c1,
adamc@88 876 fn c1' =>
adamc@88 877 S.map2 (mfc ctx c2,
adamc@88 878 fn c2' =>
adamc@88 879 (DConstraint (c1', c2'), loc)))
adamc@109 880 | DExport (en, sgn, str) =>
adamc@109 881 S.bind2 (mfsg ctx sgn,
adamc@109 882 fn sgn' =>
adamc@109 883 S.map2 (mfst ctx str,
adamc@109 884 fn str' =>
adamc@109 885 (DExport (en, sgn', str'), loc)))
adamc@123 886
adamc@707 887 | DTable (tn, x, n, c, pe, pc, ce, cc) =>
adamc@704 888 S.bind2 (mfc ctx c,
adamc@203 889 fn c' =>
adamc@707 890 S.bind2 (mfe ctx pe,
adamc@707 891 fn pe' =>
adamc@707 892 S.bind2 (mfc ctx pc,
adamc@707 893 fn pc' =>
adamc@707 894 S.bind2 (mfe ctx ce,
adamc@707 895 fn ce' =>
adamc@707 896 S.map2 (mfc ctx cc,
adamc@707 897 fn cc' =>
adamc@707 898 (DTable (tn, x, n, c', pe', pc', ce', cc'), loc))))))
adamc@338 899 | DSequence _ => S.return2 dAll
adamc@203 900
adamc@563 901 | DClass (x, n, k, c) =>
adamc@623 902 S.bind2 (mfk ctx k,
adamc@563 903 fn k' =>
adamc@563 904 S.map2 (mfc ctx c,
adamc@563 905 fn c' =>
adamc@563 906 (DClass (x, n, k', c'), loc)))
adamc@213 907
adamc@338 908 | DDatabase _ => S.return2 dAll
adamc@271 909
adamc@459 910 | DCookie (tn, x, n, c) =>
adamc@459 911 S.map2 (mfc ctx c,
adamc@459 912 fn c' =>
adamc@459 913 (DCookie (tn, x, n, c'), loc))
adamc@459 914
adamc@123 915 and mfvi ctx (x, n, c, e) =
adamc@123 916 S.bind2 (mfc ctx c,
adamc@123 917 fn c' =>
adamc@123 918 S.map2 (mfe ctx e,
adamc@123 919 fn e' =>
adamc@123 920 (x, n, c', e')))
adamc@76 921 in
adamc@76 922 mfd
adamc@76 923 end
adamc@76 924
adamc@76 925 fun mapfold {kind, con, exp, sgn_item, sgn, str, decl} =
adamc@623 926 mapfoldB {kind = fn () => kind,
adamc@76 927 con = fn () => con,
adamc@76 928 exp = fn () => exp,
adamc@76 929 sgn_item = fn () => sgn_item,
adamc@76 930 sgn = fn () => sgn,
adamc@76 931 str = fn () => str,
adamc@76 932 decl = fn () => decl,
adamc@76 933 bind = fn ((), _) => ()} ()
adamc@76 934
adamc@76 935 fun exists {kind, con, exp, sgn_item, sgn, str, decl} k =
adamc@76 936 case mapfold {kind = fn k => fn () =>
adamc@76 937 if kind k then
adamc@76 938 S.Return ()
adamc@76 939 else
adamc@76 940 S.Continue (k, ()),
adamc@76 941 con = fn c => fn () =>
adamc@76 942 if con c then
adamc@76 943 S.Return ()
adamc@76 944 else
adamc@76 945 S.Continue (c, ()),
adamc@76 946 exp = fn e => fn () =>
adamc@76 947 if exp e then
adamc@76 948 S.Return ()
adamc@76 949 else
adamc@76 950 S.Continue (e, ()),
adamc@76 951 sgn_item = fn sgi => fn () =>
adamc@76 952 if sgn_item sgi then
adamc@76 953 S.Return ()
adamc@76 954 else
adamc@76 955 S.Continue (sgi, ()),
adamc@76 956 sgn = fn x => fn () =>
adamc@76 957 if sgn x then
adamc@76 958 S.Return ()
adamc@76 959 else
adamc@76 960 S.Continue (x, ()),
adamc@76 961 str = fn x => fn () =>
adamc@76 962 if str x then
adamc@76 963 S.Return ()
adamc@76 964 else
adamc@76 965 S.Continue (x, ()),
adamc@76 966 decl = fn x => fn () =>
adamc@76 967 if decl x then
adamc@76 968 S.Return ()
adamc@76 969 else
adamc@76 970 S.Continue (x, ())} k () of
adamc@76 971 S.Return _ => true
adamc@76 972 | S.Continue _ => false
adamc@76 973
adamc@76 974 fun search {kind, con, exp, sgn_item, sgn, str, decl} k =
adamc@76 975 case mapfold {kind = fn x => fn () =>
adamc@76 976 case kind x of
adamc@76 977 NONE => S.Continue (x, ())
adamc@76 978 | SOME v => S.Return v,
adamc@76 979
adamc@76 980 con = fn x => fn () =>
adamc@76 981 case con x of
adamc@76 982 NONE => S.Continue (x, ())
adamc@76 983 | SOME v => S.Return v,
adamc@76 984
adamc@76 985 exp = fn x => fn () =>
adamc@76 986 case exp x of
adamc@76 987 NONE => S.Continue (x, ())
adamc@76 988 | SOME v => S.Return v,
adamc@76 989
adamc@76 990 sgn_item = fn x => fn () =>
adamc@76 991 case sgn_item x of
adamc@76 992 NONE => S.Continue (x, ())
adamc@76 993 | SOME v => S.Return v,
adamc@76 994
adamc@76 995 sgn = fn x => fn () =>
adamc@76 996 case sgn x of
adamc@76 997 NONE => S.Continue (x, ())
adamc@76 998 | SOME v => S.Return v,
adamc@76 999
adamc@76 1000 str = fn x => fn () =>
adamc@76 1001 case str x of
adamc@76 1002 NONE => S.Continue (x, ())
adamc@76 1003 | SOME v => S.Return v,
adamc@76 1004
adamc@76 1005 decl = fn x => fn () =>
adamc@76 1006 case decl x of
adamc@76 1007 NONE => S.Continue (x, ())
adamc@76 1008 | SOME v => S.Return v
adamc@76 1009
adamc@76 1010 } k () of
adamc@76 1011 S.Return x => SOME x
adamc@76 1012 | S.Continue _ => NONE
adamc@76 1013
adamc@448 1014 fun foldMapB {kind, con, exp, sgn_item, sgn, str, decl, bind} ctx st d =
adamc@623 1015 case mapfoldB {kind = fn ctx => fn x => fn st => S.Continue (kind (ctx, x, st)),
adamc@448 1016 con = fn ctx => fn x => fn st => S.Continue (con (ctx, x, st)),
adamc@448 1017 exp = fn ctx => fn x => fn st => S.Continue (exp (ctx, x, st)),
adamc@448 1018 sgn_item = fn ctx => fn x => fn st => S.Continue (sgn_item (ctx, x, st)),
adamc@448 1019 sgn = fn ctx => fn x => fn st => S.Continue (sgn (ctx, x, st)),
adamc@448 1020 str = fn ctx => fn x => fn st => S.Continue (str (ctx, x, st)),
adamc@448 1021 decl = fn ctx => fn x => fn st => S.Continue (decl (ctx, x, st)),
adamc@448 1022 bind = bind} ctx d st of
adamc@448 1023 S.Continue x => x
adamc@448 1024 | S.Return _ => raise Fail "ElabUtil.Decl.foldMapB: Impossible"
adamc@448 1025
adamc@448 1026 end
adamc@448 1027
adamc@448 1028 structure File = struct
adamc@448 1029
adamc@448 1030 fun maxName ds = foldl (fn (d, count) => Int.max (maxNameDecl d, count)) 0 ds
adamc@448 1031
adamc@448 1032 and maxNameDecl (d, _) =
adamc@448 1033 case d of
adamc@448 1034 DCon (_, n, _, _) => n
adamc@448 1035 | DDatatype (_, n, _, ns) =>
adamc@448 1036 foldl (fn ((_, n', _), m) => Int.max (n', m))
adamc@448 1037 n ns
adamc@448 1038 | DDatatypeImp (_, n1, n2, _, _, _, ns) =>
adamc@448 1039 foldl (fn ((_, n', _), m) => Int.max (n', m))
adamc@448 1040 (Int.max (n1, n2)) ns
adamc@448 1041 | DVal (_, n, _, _) => n
adamc@448 1042 | DValRec vis => foldl (fn ((_, n, _, _), count) => Int.max (n, count)) 0 vis
adamc@448 1043 | DStr (_, n, sgn, str) => Int.max (n, Int.max (maxNameSgn sgn, maxNameStr str))
adamc@448 1044 | DSgn (_, n, sgn) => Int.max (n, maxNameSgn sgn)
adamc@448 1045 | DFfiStr (_, n, sgn) => Int.max (n, maxNameSgn sgn)
adamc@448 1046 | DConstraint _ => 0
adamc@563 1047 | DClass (_, n, _, _) => n
adamc@448 1048 | DExport _ => 0
adamc@707 1049 | DTable (n1, _, n2, _, _, _, _, _) => Int.max (n1, n2)
adamc@459 1050 | DSequence (n1, _, n2) => Int.max (n1, n2)
adamc@448 1051 | DDatabase _ => 0
adamc@459 1052 | DCookie (n1, _, n2, _) => Int.max (n1, n2)
adamc@448 1053
adamc@448 1054 and maxNameStr (str, _) =
adamc@448 1055 case str of
adamc@448 1056 StrConst ds => maxName ds
adamc@448 1057 | StrVar n => n
adamc@448 1058 | StrProj (str, _) => maxNameStr str
adamc@448 1059 | StrFun (_, n, dom, ran, str) => foldl Int.max n [maxNameSgn dom, maxNameSgn ran, maxNameStr str]
adamc@448 1060 | StrApp (str1, str2) => Int.max (maxNameStr str1, maxNameStr str2)
adamc@448 1061 | StrError => 0
adamc@448 1062
adamc@448 1063 and maxNameSgn (sgn, _) =
adamc@448 1064 case sgn of
adamc@448 1065 SgnConst sgis => foldl (fn (sgi, count) => Int.max (maxNameSgi sgi, count)) 0 sgis
adamc@448 1066 | SgnVar n => n
adamc@448 1067 | SgnFun (_, n, dom, ran) => Int.max (n, Int.max (maxNameSgn dom, maxNameSgn ran))
adamc@448 1068 | SgnWhere (sgn, _, _) => maxNameSgn sgn
adamc@448 1069 | SgnProj (n, _, _) => n
adamc@448 1070 | SgnError => 0
adamc@448 1071
adamc@448 1072 and maxNameSgi (sgi, _) =
adamc@448 1073 case sgi of
adamc@448 1074 SgiConAbs (_, n, _) => n
adamc@448 1075 | SgiCon (_, n, _, _) => n
adamc@448 1076 | SgiDatatype (_, n, _, ns) =>
adamc@448 1077 foldl (fn ((_, n', _), m) => Int.max (n', m))
adamc@448 1078 n ns
adamc@448 1079 | SgiDatatypeImp (_, n1, n2, _, _, _, ns) =>
adamc@448 1080 foldl (fn ((_, n', _), m) => Int.max (n', m))
adamc@448 1081 (Int.max (n1, n2)) ns
adamc@448 1082 | SgiVal (_, n, _) => n
adamc@448 1083 | SgiStr (_, n, sgn) => Int.max (n, maxNameSgn sgn)
adamc@448 1084 | SgiSgn (_, n, sgn) => Int.max (n, maxNameSgn sgn)
adamc@448 1085 | SgiConstraint _ => 0
adamc@563 1086 | SgiClassAbs (_, n, _) => n
adamc@563 1087 | SgiClass (_, n, _, _) => n
adamc@448 1088
adamc@34 1089 end
adamc@76 1090
adamc@76 1091 end