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annotate src/elab_util.sml @ 2307:6ae9a2784a45

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author Adam Chlipala <adam@chlipala.net>
date Sun, 20 Dec 2015 14:39:50 -0500
parents 1091227f535a
children
rev   line source
adam@1303 1 (* Copyright (c) 2008-2010, 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
adam@1639 78 | KUnif (_, _, ref (KKnown k)) => mfk' ctx k
adamc@2 79 | KUnif _ => S.return2 kAll
adamc@623 80
adam@1639 81 | KTupleUnif (_, _, ref (KKnown k)) => mfk' ctx k
adam@1302 82 | KTupleUnif (loc, nks, r) =>
adam@1302 83 S.map2 (ListUtil.mapfold (fn (n, k) =>
adam@1302 84 S.map2 (mfk ctx k,
adam@1302 85 fn k' =>
adam@1302 86 (n, k'))) nks,
adam@1302 87 fn nks' =>
adam@1302 88 (KTupleUnif (loc, nks', r), loc))
adam@1302 89
adam@1302 90
adamc@623 91 | KRel _ => S.return2 kAll
adamc@623 92 | KFun (x, k) =>
adamc@623 93 S.map2 (mfk (bind (ctx, x)) k,
adamc@623 94 fn k' =>
adamc@623 95 (KFun (x, k'), loc))
adamc@2 96 in
adamc@2 97 mfk
adamc@2 98 end
adamc@2 99
adamc@623 100 fun mapfold fk =
adamc@623 101 mapfoldB {kind = fn () => fk,
adamc@623 102 bind = fn ((), _) => ()} ()
adamc@623 103
adamc@623 104 fun mapB {kind, bind} ctx k =
adamc@623 105 case mapfoldB {kind = fn ctx => fn k => fn () => S.Continue (kind ctx k, ()),
adamc@623 106 bind = bind} ctx k () of
adamc@623 107 S.Continue (k, ()) => k
adamc@623 108 | S.Return _ => raise Fail "ElabUtil.Kind.mapB: Impossible"
adamc@623 109
adamc@2 110 fun exists f k =
adamc@6 111 case mapfold (fn k => fn () =>
adamc@6 112 if f k then
adamc@6 113 S.Return ()
adamc@6 114 else
adamc@6 115 S.Continue (k, ())) k () of
adamc@6 116 S.Return _ => true
adamc@6 117 | S.Continue _ => false
adamc@6 118
adam@2201 119 fun foldB {kind, bind} ctx st k =
adam@2201 120 case mapfoldB {kind = fn ctx => fn k => fn st => S.Continue (k, kind (ctx, k, st)),
adam@2201 121 bind = bind} ctx k st of
adam@2201 122 S.Continue (_, st) => st
adam@2201 123 | S.Return _ => raise Fail "ElabUtil.Kind.foldB: Impossible"
adam@2201 124
adamc@6 125 end
adamc@6 126
adam@1303 127 val mliftConInCon = ref (fn n : int => fn c : con => (raise Fail "You didn't set ElabUtil.mliftConInCon!") : con)
adam@1303 128
adamc@6 129 structure Con = struct
adamc@6 130
adamc@11 131 datatype binder =
adamc@623 132 RelK of string
adamc@623 133 | RelC of string * Elab.kind
adamc@792 134 | NamedC of string * int * Elab.kind * Elab.con option
adamc@11 135
adamc@11 136 fun mapfoldB {kind = fk, con = fc, bind} =
adamc@6 137 let
adamc@623 138 val mfk = Kind.mapfoldB {kind = fk, bind = fn (ctx, s) => bind (ctx, RelK s)}
adamc@6 139
adamc@11 140 fun mfc ctx c acc =
adamc@11 141 S.bindP (mfc' ctx c acc, fc ctx)
adamc@6 142
adamc@11 143 and mfc' ctx (cAll as (c, loc)) =
adamc@6 144 case c of
adamc@6 145 TFun (c1, c2) =>
adamc@11 146 S.bind2 (mfc ctx c1,
adamc@6 147 fn c1' =>
adamc@11 148 S.map2 (mfc ctx c2,
adamc@6 149 fn c2' =>
adamc@6 150 (TFun (c1', c2'), loc)))
adamc@6 151 | TCFun (e, x, k, c) =>
adamc@623 152 S.bind2 (mfk ctx k,
adamc@6 153 fn k' =>
adamc@623 154 S.map2 (mfc (bind (ctx, RelC (x, k))) c,
adamc@6 155 fn c' =>
adamc@6 156 (TCFun (e, x, k', c'), loc)))
adamc@628 157 | TDisjoint (c1, c2, c3) =>
adamc@85 158 S.bind2 (mfc ctx c1,
adamc@85 159 fn c1' =>
adamc@85 160 S.bind2 (mfc ctx c2,
adamc@85 161 fn c2' =>
adamc@85 162 S.map2 (mfc ctx c3,
adamc@85 163 fn c3' =>
adamc@628 164 (TDisjoint (c1', c2', c3'), loc))))
adamc@6 165 | TRecord c =>
adamc@11 166 S.map2 (mfc ctx c,
adamc@6 167 fn c' =>
adamc@6 168 (TRecord c', loc))
adamc@6 169
adamc@6 170 | CRel _ => S.return2 cAll
adamc@6 171 | CNamed _ => S.return2 cAll
adamc@34 172 | CModProj _ => S.return2 cAll
adamc@6 173 | CApp (c1, c2) =>
adamc@11 174 S.bind2 (mfc ctx c1,
adamc@6 175 fn c1' =>
adamc@11 176 S.map2 (mfc ctx c2,
adamc@6 177 fn c2' =>
adamc@6 178 (CApp (c1', c2'), loc)))
adamc@8 179 | CAbs (x, k, c) =>
adamc@623 180 S.bind2 (mfk ctx k,
adamc@6 181 fn k' =>
adamc@623 182 S.map2 (mfc (bind (ctx, RelC (x, k))) c,
adamc@6 183 fn c' =>
adamc@8 184 (CAbs (x, k', c'), loc)))
adamc@6 185
adamc@6 186 | CName _ => S.return2 cAll
adamc@6 187
adamc@6 188 | CRecord (k, xcs) =>
adamc@623 189 S.bind2 (mfk ctx k,
adamc@6 190 fn k' =>
adamc@6 191 S.map2 (ListUtil.mapfold (fn (x, c) =>
adamc@11 192 S.bind2 (mfc ctx x,
adamc@6 193 fn x' =>
adamc@11 194 S.map2 (mfc ctx c,
adamc@6 195 fn c' =>
adamc@6 196 (x', c'))))
adamc@6 197 xcs,
adamc@6 198 fn xcs' =>
adamc@6 199 (CRecord (k', xcs'), loc)))
adamc@6 200 | CConcat (c1, c2) =>
adamc@11 201 S.bind2 (mfc ctx c1,
adamc@6 202 fn c1' =>
adamc@11 203 S.map2 (mfc ctx c2,
adamc@6 204 fn c2' =>
adamc@6 205 (CConcat (c1', c2'), loc)))
adamc@621 206 | CMap (k1, k2) =>
adamc@623 207 S.bind2 (mfk ctx k1,
adamc@67 208 fn k1' =>
adamc@623 209 S.map2 (mfk ctx k2,
adamc@67 210 fn k2' =>
adamc@621 211 (CMap (k1', k2'), loc)))
adamc@6 212
adamc@82 213 | CUnit => S.return2 cAll
adamc@82 214
adamc@207 215 | CTuple cs =>
adamc@207 216 S.map2 (ListUtil.mapfold (mfc ctx) cs,
adamc@207 217 fn cs' =>
adamc@207 218 (CTuple cs', loc))
adamc@207 219
adamc@207 220 | CProj (c, n) =>
adamc@207 221 S.map2 (mfc ctx c,
adamc@207 222 fn c' =>
adamc@207 223 (CProj (c', n), loc))
adamc@207 224
adamc@6 225 | CError => S.return2 cAll
adam@1639 226 | CUnif (nl, _, _, _, ref (Known c)) => mfc' ctx (!mliftConInCon nl c)
adamc@6 227 | CUnif _ => S.return2 cAll
adam@1302 228
adamc@623 229 | CKAbs (x, c) =>
adamc@623 230 S.map2 (mfc (bind (ctx, RelK x)) c,
adamc@623 231 fn c' =>
adamc@623 232 (CKAbs (x, c'), loc))
adamc@623 233 | CKApp (c, k) =>
adamc@623 234 S.bind2 (mfc ctx c,
adamc@623 235 fn c' =>
adamc@623 236 S.map2 (mfk ctx k,
adamc@623 237 fn k' =>
adamc@623 238 (CKApp (c', k'), loc)))
adamc@623 239 | TKFun (x, c) =>
adamc@623 240 S.map2 (mfc (bind (ctx, RelK x)) c,
adamc@623 241 fn c' =>
adamc@623 242 (TKFun (x, c'), loc))
adamc@6 243 in
adamc@6 244 mfc
adamc@6 245 end
adamc@6 246
adamc@11 247 fun mapfold {kind = fk, con = fc} =
adamc@623 248 mapfoldB {kind = fn () => fk,
adamc@11 249 con = fn () => fc,
adamc@11 250 bind = fn ((), _) => ()} ()
adamc@11 251
adamc@11 252 fun mapB {kind, con, bind} ctx c =
adamc@623 253 case mapfoldB {kind = fn ctx => fn k => fn () => S.Continue (kind ctx k, ()),
adamc@11 254 con = fn ctx => fn c => fn () => S.Continue (con ctx c, ()),
adamc@11 255 bind = bind} ctx c () of
adamc@11 256 S.Continue (c, ()) => c
adamc@34 257 | S.Return _ => raise Fail "ElabUtil.Con.mapB: Impossible"
adamc@34 258
adamc@34 259 fun map {kind, con} s =
adamc@34 260 case mapfold {kind = fn k => fn () => S.Continue (kind k, ()),
adamc@34 261 con = fn c => fn () => S.Continue (con c, ())} s () of
adamc@34 262 S.Return () => raise Fail "ElabUtil.Con.map: Impossible"
adamc@34 263 | S.Continue (s, ()) => s
adamc@11 264
adam@1639 265 fun appB {kind, con, bind} ctx c =
adam@1639 266 case mapfoldB {kind = fn ctx => fn k => fn () => (kind ctx k; S.Continue (k, ())),
adam@1639 267 con = fn ctx => fn c => fn () => (con ctx c; S.Continue (c, ())),
adam@1639 268 bind = bind} ctx c () of
adam@1639 269 S.Continue _ => ()
adam@1639 270 | S.Return _ => raise Fail "ElabUtil.Con.appB: Impossible"
adam@1639 271
adam@1639 272 fun app {kind, con} s =
adam@1639 273 case mapfold {kind = fn k => fn () => (kind k; S.Continue (k, ())),
adam@1639 274 con = fn c => fn () => (con c; S.Continue (c, ()))} s () of
adam@1639 275 S.Return () => raise Fail "ElabUtil.Con.app: Impossible"
adam@1639 276 | S.Continue _ => ()
adam@1639 277
adamc@711 278 fun existsB {kind, con, bind} ctx c =
adamc@711 279 case mapfoldB {kind = fn ctx => fn k => fn () =>
adamc@711 280 if kind (ctx, k) then
adamc@711 281 S.Return ()
adamc@711 282 else
adamc@711 283 S.Continue (k, ()),
adamc@711 284 con = fn ctx => fn c => fn () =>
adamc@711 285 if con (ctx, c) then
adamc@711 286 S.Return ()
adamc@711 287 else
adamc@711 288 S.Continue (c, ()),
adamc@711 289 bind = bind} ctx c () of
adamc@711 290 S.Return _ => true
adamc@711 291 | S.Continue _ => false
adamc@711 292
adamc@711 293 fun exists {kind, con} c =
adamc@6 294 case mapfold {kind = fn k => fn () =>
adamc@6 295 if kind k then
adamc@6 296 S.Return ()
adamc@6 297 else
adamc@6 298 S.Continue (k, ()),
adamc@6 299 con = fn c => fn () =>
adamc@6 300 if con c then
adamc@6 301 S.Return ()
adamc@6 302 else
adamc@711 303 S.Continue (c, ())} c () of
adamc@2 304 S.Return _ => true
adamc@2 305 | S.Continue _ => false
adamc@2 306
adamc@448 307 fun foldB {kind, con, bind} ctx st c =
adamc@623 308 case mapfoldB {kind = fn ctx => fn k => fn st => S.Continue (k, kind (ctx, k, st)),
adamc@448 309 con = fn ctx => fn c => fn st => S.Continue (c, con (ctx, c, st)),
adamc@448 310 bind = bind} ctx c st of
adamc@448 311 S.Continue (_, st) => st
adamc@448 312 | S.Return _ => raise Fail "ElabUtil.Con.foldB: Impossible"
adamc@448 313
adamc@839 314 fun fold {kind, con} st c =
adamc@839 315 case mapfoldB {kind = fn () => fn k => fn st => S.Continue (k, kind (k, st)),
adamc@839 316 con = fn () => fn c => fn st => S.Continue (c, con (c, st)),
adamc@839 317 bind = fn ((), _) => ()} () c st of
adamc@839 318 S.Continue (_, st) => st
adamc@839 319 | S.Return _ => raise Fail "ElabUtil.Con.fold: Impossible"
adamc@839 320
adamc@2 321 end
adamc@2 322
adamc@10 323 structure Exp = struct
adamc@10 324
adamc@11 325 datatype binder =
adamc@623 326 RelK of string
adamc@623 327 | RelC of string * Elab.kind
adamc@792 328 | NamedC of string * int * Elab.kind * Elab.con option
adamc@11 329 | RelE of string * Elab.con
adamc@11 330 | NamedE of string * Elab.con
adamc@11 331
adamc@11 332 fun mapfoldB {kind = fk, con = fc, exp = fe, bind} =
adamc@10 333 let
adamc@623 334 val mfk = Kind.mapfoldB {kind = fk, bind = fn (ctx, x) => bind (ctx, RelK x)}
adamc@10 335
adamc@11 336 fun bind' (ctx, b) =
adamc@11 337 let
adamc@11 338 val b' = case b of
adamc@623 339 Con.RelK x => RelK x
adamc@623 340 | Con.RelC x => RelC x
adamc@623 341 | Con.NamedC x => NamedC x
adamc@11 342 in
adamc@11 343 bind (ctx, b')
adamc@11 344 end
adamc@11 345 val mfc = Con.mapfoldB {kind = fk, con = fc, bind = bind'}
adamc@10 346
adamc@825 347 fun doVars ((p, _), ctx) =
adamc@825 348 case p of
adamc@825 349 PWild => ctx
adamc@825 350 | PVar xt => bind (ctx, RelE xt)
adamc@825 351 | PPrim _ => ctx
adamc@825 352 | PCon (_, _, _, NONE) => ctx
adamc@825 353 | PCon (_, _, _, SOME p) => doVars (p, ctx)
adamc@825 354 | PRecord xpcs =>
adamc@825 355 foldl (fn ((_, p, _), ctx) => doVars (p, ctx))
adamc@825 356 ctx xpcs
adamc@825 357
adamc@11 358 fun mfe ctx e acc =
adamc@11 359 S.bindP (mfe' ctx e acc, fe ctx)
adamc@11 360
adamc@11 361 and mfe' ctx (eAll as (e, loc)) =
adamc@10 362 case e of
adamc@14 363 EPrim _ => S.return2 eAll
adamc@14 364 | ERel _ => S.return2 eAll
adamc@10 365 | ENamed _ => S.return2 eAll
adamc@34 366 | EModProj _ => S.return2 eAll
adamc@10 367 | EApp (e1, e2) =>
adamc@11 368 S.bind2 (mfe ctx e1,
adamc@10 369 fn e1' =>
adamc@11 370 S.map2 (mfe ctx e2,
adamc@10 371 fn e2' =>
adamc@10 372 (EApp (e1', e2'), loc)))
adamc@26 373 | EAbs (x, dom, ran, e) =>
adamc@26 374 S.bind2 (mfc ctx dom,
adamc@26 375 fn dom' =>
adamc@26 376 S.bind2 (mfc ctx ran,
adamc@26 377 fn ran' =>
adamc@26 378 S.map2 (mfe (bind (ctx, RelE (x, dom'))) e,
adamc@26 379 fn e' =>
adamc@26 380 (EAbs (x, dom', ran', e'), loc))))
adamc@26 381
adamc@10 382 | ECApp (e, c) =>
adamc@11 383 S.bind2 (mfe ctx e,
adamc@10 384 fn e' =>
adamc@11 385 S.map2 (mfc ctx c,
adamc@10 386 fn c' =>
adamc@10 387 (ECApp (e', c'), loc)))
adamc@10 388 | ECAbs (expl, x, k, e) =>
adamc@623 389 S.bind2 (mfk ctx k,
adamc@10 390 fn k' =>
adamc@11 391 S.map2 (mfe (bind (ctx, RelC (x, k))) e,
adamc@10 392 fn e' =>
adamc@10 393 (ECAbs (expl, x, k', e'), loc)))
adamc@10 394
adamc@12 395 | ERecord xes =>
adamc@29 396 S.map2 (ListUtil.mapfold (fn (x, e, t) =>
adamc@12 397 S.bind2 (mfc ctx x,
adamc@12 398 fn x' =>
adamc@29 399 S.bind2 (mfe ctx e,
adamc@12 400 fn e' =>
adamc@29 401 S.map2 (mfc ctx t,
adamc@29 402 fn t' =>
adamc@29 403 (x', e', t')))))
adamc@12 404 xes,
adamc@12 405 fn xes' =>
adamc@12 406 (ERecord xes', loc))
adamc@12 407 | EField (e, c, {field, rest}) =>
adamc@12 408 S.bind2 (mfe ctx e,
adamc@12 409 fn e' =>
adamc@12 410 S.bind2 (mfc ctx c,
adamc@12 411 fn c' =>
adamc@12 412 S.bind2 (mfc ctx field,
adamc@12 413 fn field' =>
adamc@12 414 S.map2 (mfc ctx rest,
adamc@12 415 fn rest' =>
adamc@12 416 (EField (e', c', {field = field', rest = rest'}), loc)))))
adamc@445 417 | EConcat (e1, c1, e2, c2) =>
adamc@339 418 S.bind2 (mfe ctx e1,
adamc@339 419 fn e1' =>
adamc@445 420 S.bind2 (mfc ctx c1,
adamc@445 421 fn c1' =>
adamc@339 422 S.bind2 (mfe ctx e2,
adamc@339 423 fn e2' =>
adamc@445 424 S.map2 (mfc ctx c2,
adamc@445 425 fn c2' =>
adamc@445 426 (EConcat (e1', c1', e2', c2'),
adamc@445 427 loc)))))
adamc@149 428 | ECut (e, c, {field, rest}) =>
adamc@149 429 S.bind2 (mfe ctx e,
adamc@149 430 fn e' =>
adamc@149 431 S.bind2 (mfc ctx c,
adamc@149 432 fn c' =>
adamc@149 433 S.bind2 (mfc ctx field,
adamc@149 434 fn field' =>
adamc@149 435 S.map2 (mfc ctx rest,
adamc@149 436 fn rest' =>
adamc@149 437 (ECut (e', c', {field = field', rest = rest'}), loc)))))
adamc@12 438
adamc@493 439 | ECutMulti (e, c, {rest}) =>
adamc@493 440 S.bind2 (mfe ctx e,
adamc@493 441 fn e' =>
adamc@493 442 S.bind2 (mfc ctx c,
adamc@493 443 fn c' =>
adamc@493 444 S.map2 (mfc ctx rest,
adamc@493 445 fn rest' =>
adamc@493 446 (ECutMulti (e', c', {rest = rest'}), loc))))
adamc@493 447
adamc@182 448 | ECase (e, pes, {disc, result}) =>
adamc@171 449 S.bind2 (mfe ctx e,
adamc@171 450 fn e' =>
adamc@171 451 S.bind2 (ListUtil.mapfold (fn (p, e) =>
adamc@448 452 let
adamc@448 453 fun pb ((p, _), ctx) =
adamc@448 454 case p of
adamc@448 455 PWild => ctx
adamc@448 456 | PVar (x, t) => bind (ctx, RelE (x, t))
adamc@448 457 | PPrim _ => ctx
adamc@448 458 | PCon (_, _, _, NONE) => ctx
adamc@448 459 | PCon (_, _, _, SOME p) => pb (p, ctx)
adamc@448 460 | PRecord xps => foldl (fn ((_, p, _), ctx) =>
adamc@448 461 pb (p, ctx)) ctx xps
adamc@448 462 in
adamc@1272 463 S.bind2 (mfp ctx p,
adamc@1272 464 fn p' =>
adamc@1272 465 S.map2 (mfe (pb (p', ctx)) e,
adamc@1272 466 fn e' => (p', e')))
adamc@448 467 end) pes,
adamc@171 468 fn pes' =>
adamc@182 469 S.bind2 (mfc ctx disc,
adamc@182 470 fn disc' =>
adamc@182 471 S.map2 (mfc ctx result,
adamc@182 472 fn result' =>
adamc@182 473 (ECase (e', pes', {disc = disc', result = result'}), loc)))))
adamc@171 474
adamc@10 475 | EError => S.return2 eAll
adamc@228 476 | EUnif (ref (SOME e)) => mfe ctx e
adamc@228 477 | EUnif _ => S.return2 eAll
adamc@447 478
adamc@825 479 | ELet (des, e, t) =>
adamc@447 480 let
adamc@826 481 val (des, ctx') = foldl (fn (ed, (des, ctx)) =>
adamc@826 482 let
adamc@826 483 val ctx' =
adamc@826 484 case #1 ed of
adamc@826 485 EDVal (p, _, _) => doVars (p, ctx)
adamc@826 486 | EDValRec vis =>
adamc@826 487 foldl (fn ((x, t, _), ctx) => bind (ctx, RelE (x, t)))
adamc@826 488 ctx vis
adamc@826 489 in
adamc@826 490 (S.bind2 (des,
adamc@826 491 fn des' =>
adamc@826 492 S.map2 (mfed ctx ed,
adamc@826 493 fn ed' => ed' :: des')),
adamc@826 494 ctx')
adamc@826 495 end)
adamc@447 496 (S.return2 [], ctx) des
adamc@447 497 in
adamc@447 498 S.bind2 (des,
adamc@447 499 fn des' =>
adamc@826 500 S.bind2 (mfe ctx' e,
adamc@447 501 fn e' =>
adamc@825 502 S.map2 (mfc ctx t,
adamc@825 503 fn t' =>
adamc@826 504 (ELet (rev des', e', t'), loc))))
adamc@447 505 end
adamc@447 506
adamc@623 507 | EKAbs (x, e) =>
adamc@623 508 S.map2 (mfe (bind (ctx, RelK x)) e,
adamc@623 509 fn e' =>
adamc@623 510 (EKAbs (x, e'), loc))
adamc@623 511 | EKApp (e, k) =>
adamc@623 512 S.bind2 (mfe ctx e,
adamc@623 513 fn e' =>
adamc@623 514 S.map2 (mfk ctx k,
adamc@623 515 fn k' =>
adamc@623 516 (EKApp (e', k'), loc)))
adamc@623 517
adamc@1272 518 and mfp ctx (pAll as (p, loc)) =
adamc@1272 519 case p of
adamc@1272 520 PWild => S.return2 pAll
adamc@1272 521 | PVar (x, t) =>
adamc@1272 522 S.map2 (mfc ctx t,
adamc@1272 523 fn t' =>
adamc@1272 524 (PVar (x, t'), loc))
adamc@1272 525 | PPrim _ => S.return2 pAll
adamc@1272 526 | PCon (dk, pc, args, po) =>
adamc@1272 527 S.bind2 (ListUtil.mapfold (mfc ctx) args,
adamc@1272 528 fn args' =>
adamc@1272 529 S.map2 ((case po of
adamc@1272 530 NONE => S.return2 NONE
adamc@1272 531 | SOME p => S.map2 (mfp ctx p, SOME)),
adamc@1272 532 fn po' =>
adamc@1272 533 (PCon (dk, pc, args', po'), loc)))
adamc@1272 534 | PRecord xps =>
adamc@1272 535 S.map2 (ListUtil.mapfold (fn (x, p, c) =>
adamc@1272 536 S.bind2 (mfp ctx p,
adamc@1272 537 fn p' =>
adamc@1272 538 S.map2 (mfc ctx c,
adamc@1272 539 fn c' =>
adamc@1272 540 (x, p', c')))) xps,
adamc@1272 541 fn xps' =>
adamc@1272 542 (PRecord xps', loc))
adamc@1272 543
adamc@447 544 and mfed ctx (dAll as (d, loc)) =
adamc@447 545 case d of
adamc@825 546 EDVal (p, t, e) =>
adamc@825 547 S.bind2 (mfc ctx t,
adamc@825 548 fn t' =>
adamc@826 549 S.map2 (mfe ctx e,
adamc@825 550 fn e' =>
adamc@825 551 (EDVal (p, t', e'), loc)))
adamc@447 552 | EDValRec vis =>
adamc@447 553 let
adamc@453 554 val ctx = foldl (fn ((x, t, _), ctx) => bind (ctx, RelE (x, t))) ctx vis
adamc@447 555 in
adamc@447 556 S.map2 (ListUtil.mapfold (mfvi ctx) vis,
adamc@447 557 fn vis' =>
adamc@447 558 (EDValRec vis', loc))
adamc@447 559 end
adamc@447 560
adamc@447 561 and mfvi ctx (x, c, e) =
adamc@447 562 S.bind2 (mfc ctx c,
adamc@447 563 fn c' =>
adamc@447 564 S.map2 (mfe ctx e,
adamc@447 565 fn e' =>
adamc@447 566 (x, c', e')))
adamc@10 567 in
adamc@10 568 mfe
adamc@10 569 end
adamc@10 570
adamc@11 571 fun mapfold {kind = fk, con = fc, exp = fe} =
adamc@623 572 mapfoldB {kind = fn () => fk,
adamc@11 573 con = fn () => fc,
adamc@11 574 exp = fn () => fe,
adamc@11 575 bind = fn ((), _) => ()} ()
adamc@11 576
adam@1795 577 fun existsB {kind, con, exp, bind} ctx e =
adam@1795 578 case mapfoldB {kind = fn ctx => fn k => fn () =>
adam@1795 579 if kind (ctx, k) then
adam@1795 580 S.Return ()
adam@1795 581 else
adam@1795 582 S.Continue (k, ()),
adam@1795 583 con = fn ctx => fn c => fn () =>
adam@1795 584 if con (ctx, c) then
adam@1795 585 S.Return ()
adam@1795 586 else
adam@1795 587 S.Continue (c, ()),
adam@1795 588 exp = fn ctx => fn e => fn () =>
adam@1795 589 if exp (ctx, e) then
adam@1795 590 S.Return ()
adam@1795 591 else
adam@1795 592 S.Continue (e, ()),
adam@1795 593 bind = bind} ctx e () of
adam@1795 594 S.Return _ => true
adam@1795 595 | S.Continue _ => false
adam@1795 596
adamc@10 597 fun exists {kind, con, exp} k =
adamc@10 598 case mapfold {kind = fn k => fn () =>
adamc@10 599 if kind k then
adamc@10 600 S.Return ()
adamc@10 601 else
adamc@10 602 S.Continue (k, ()),
adamc@10 603 con = fn c => fn () =>
adamc@10 604 if con c then
adamc@10 605 S.Return ()
adamc@10 606 else
adamc@10 607 S.Continue (c, ()),
adamc@10 608 exp = fn e => fn () =>
adamc@10 609 if exp e then
adamc@10 610 S.Return ()
adamc@10 611 else
adamc@10 612 S.Continue (e, ())} k () of
adamc@10 613 S.Return _ => true
adamc@10 614 | S.Continue _ => false
adamc@10 615
adamc@211 616 fun mapB {kind, con, exp, bind} ctx e =
adamc@623 617 case mapfoldB {kind = fn ctx => fn k => fn () => S.Continue (kind ctx k, ()),
adamc@211 618 con = fn ctx => fn c => fn () => S.Continue (con ctx c, ()),
adamc@211 619 exp = fn ctx => fn e => fn () => S.Continue (exp ctx e, ()),
adamc@211 620 bind = bind} ctx e () of
adamc@211 621 S.Continue (e, ()) => e
adamc@211 622 | S.Return _ => raise Fail "ElabUtil.Exp.mapB: Impossible"
adamc@211 623
adamc@448 624 fun foldB {kind, con, exp, bind} ctx st e =
adamc@623 625 case mapfoldB {kind = fn ctx => fn k => fn st => S.Continue (k, kind (ctx, k, st)),
adamc@448 626 con = fn ctx => fn c => fn st => S.Continue (c, con (ctx, c, st)),
adamc@448 627 exp = fn ctx => fn e => fn st => S.Continue (e, exp (ctx, e, st)),
adamc@448 628 bind = bind} ctx e st of
adamc@448 629 S.Continue (_, st) => st
adamc@448 630 | S.Return _ => raise Fail "ElabUtil.Exp.foldB: Impossible"
adamc@448 631
adamc@10 632 end
adamc@10 633
adamc@34 634 structure Sgn = struct
adamc@34 635
adamc@34 636 datatype binder =
adamc@623 637 RelK of string
adamc@623 638 | RelC of string * Elab.kind
adamc@792 639 | NamedC of string * int * Elab.kind * Elab.con option
adamc@792 640 | Str of string * int * Elab.sgn
adamc@792 641 | Sgn of string * int * Elab.sgn
adamc@34 642
adamc@34 643 fun mapfoldB {kind, con, sgn_item, sgn, bind} =
adamc@34 644 let
adamc@34 645 fun bind' (ctx, b) =
adamc@34 646 let
adamc@34 647 val b' = case b of
adamc@623 648 Con.RelK x => RelK x
adamc@623 649 | Con.RelC x => RelC x
adamc@623 650 | Con.NamedC x => NamedC x
adamc@34 651 in
adamc@34 652 bind (ctx, b')
adamc@34 653 end
adamc@34 654 val con = Con.mapfoldB {kind = kind, con = con, bind = bind'}
adamc@34 655
adamc@623 656 val kind = Kind.mapfoldB {kind = kind, bind = fn (ctx, x) => bind (ctx, RelK x)}
adamc@34 657
adamc@34 658 fun sgi ctx si acc =
adamc@34 659 S.bindP (sgi' ctx si acc, sgn_item ctx)
adamc@34 660
adamc@156 661 and sgi' ctx (siAll as (si, loc)) =
adamc@34 662 case si of
adamc@34 663 SgiConAbs (x, n, k) =>
adamc@623 664 S.map2 (kind ctx k,
adamc@34 665 fn k' =>
adamc@34 666 (SgiConAbs (x, n, k'), loc))
adamc@34 667 | SgiCon (x, n, k, c) =>
adamc@623 668 S.bind2 (kind ctx k,
adamc@34 669 fn k' =>
adamc@34 670 S.map2 (con ctx c,
adamc@34 671 fn c' =>
adamc@34 672 (SgiCon (x, n, k', c'), loc)))
adamc@805 673 | SgiDatatype dts =>
adamc@805 674 S.map2 (ListUtil.mapfold (fn (x, n, xs, xncs) =>
adamc@805 675 S.map2 (ListUtil.mapfold (fn (x, n, c) =>
adamc@805 676 case c of
adamc@805 677 NONE => S.return2 (x, n, c)
adamc@805 678 | SOME c =>
adamc@805 679 S.map2 (con ctx c,
adamc@805 680 fn c' => (x, n, SOME c'))) xncs,
adamc@805 681 fn xncs' => (x, n, xs, xncs'))) dts,
adamc@805 682 fn dts' =>
adamc@805 683 (SgiDatatype dts', loc))
adamc@191 684 | SgiDatatypeImp (x, n, m1, ms, s, xs, xncs) =>
adamc@162 685 S.map2 (ListUtil.mapfold (fn (x, n, c) =>
adamc@162 686 case c of
adamc@162 687 NONE => S.return2 (x, n, c)
adamc@162 688 | SOME c =>
adamc@162 689 S.map2 (con ctx c,
adamc@162 690 fn c' => (x, n, SOME c'))) xncs,
adamc@162 691 fn xncs' =>
adamc@191 692 (SgiDatatypeImp (x, n, m1, ms, s, xs, xncs'), loc))
adamc@34 693 | SgiVal (x, n, c) =>
adamc@34 694 S.map2 (con ctx c,
adamc@34 695 fn c' =>
adamc@34 696 (SgiVal (x, n, c'), loc))
adam@2190 697 | SgiStr (im, x, n, s) =>
adamc@34 698 S.map2 (sg ctx s,
adamc@34 699 fn s' =>
adam@2190 700 (SgiStr (im, x, n, s'), loc))
adamc@59 701 | SgiSgn (x, n, s) =>
adamc@59 702 S.map2 (sg ctx s,
adamc@59 703 fn s' =>
adamc@59 704 (SgiSgn (x, n, s'), loc))
adamc@88 705 | SgiConstraint (c1, c2) =>
adamc@88 706 S.bind2 (con ctx c1,
adamc@88 707 fn c1' =>
adamc@88 708 S.map2 (con ctx c2,
adamc@88 709 fn c2' =>
adamc@88 710 (SgiConstraint (c1', c2'), loc)))
adamc@563 711 | SgiClassAbs (x, n, k) =>
adamc@623 712 S.map2 (kind ctx k,
adamc@563 713 fn k' =>
adamc@563 714 (SgiClassAbs (x, n, k'), loc))
adamc@563 715 | SgiClass (x, n, k, c) =>
adamc@623 716 S.bind2 (kind ctx k,
adamc@563 717 fn k' =>
adamc@563 718 S.map2 (con ctx c,
adamc@563 719 fn c' =>
adamc@563 720 (SgiClass (x, n, k', c'), loc)))
adamc@34 721
adamc@34 722 and sg ctx s acc =
adamc@34 723 S.bindP (sg' ctx s acc, sgn ctx)
adamc@34 724
adamc@34 725 and sg' ctx (sAll as (s, loc)) =
adamc@34 726 case s of
adamc@34 727 SgnConst sgis =>
adamc@34 728 S.map2 (ListUtil.mapfoldB (fn (ctx, si) =>
adamc@34 729 (case #1 si of
adamc@329 730 SgiConAbs (x, n, k) =>
adamc@792 731 bind (ctx, NamedC (x, n, k, NONE))
adamc@792 732 | SgiCon (x, n, k, c) =>
adamc@792 733 bind (ctx, NamedC (x, n, k, SOME c))
adamc@805 734 | SgiDatatype dts =>
adamc@805 735 foldl (fn ((x, n, ks, _), ctx) =>
adamc@805 736 let
adamc@805 737 val k' = (KType, loc)
adamc@805 738 val k = foldl (fn (_, k) => (KArrow (k', k), loc))
adamc@805 739 k' ks
adamc@805 740 in
adamc@805 741 bind (ctx, NamedC (x, n, k, NONE))
adamc@805 742 end) ctx dts
adamc@792 743 | SgiDatatypeImp (x, n, m1, ms, s, _, _) =>
adamc@792 744 bind (ctx, NamedC (x, n, (KType, loc),
adamc@792 745 SOME (CModProj (m1, ms, s), loc)))
adamc@34 746 | SgiVal _ => ctx
adam@2190 747 | SgiStr (_, x, n, sgn) =>
adamc@792 748 bind (ctx, Str (x, n, sgn))
adamc@792 749 | SgiSgn (x, n, sgn) =>
adamc@792 750 bind (ctx, Sgn (x, n, sgn))
adamc@203 751 | SgiConstraint _ => ctx
adamc@563 752 | SgiClassAbs (x, n, k) =>
adamc@792 753 bind (ctx, NamedC (x, n, (KArrow (k, (KType, loc)), loc), NONE))
adamc@792 754 | SgiClass (x, n, k, c) =>
adamc@792 755 bind (ctx, NamedC (x, n, (KArrow (k, (KType, loc)), loc), SOME c)),
adamc@34 756 sgi ctx si)) ctx sgis,
adamc@34 757 fn sgis' =>
adamc@34 758 (SgnConst sgis', loc))
adamc@34 759
adamc@34 760 | SgnVar _ => S.return2 sAll
adamc@41 761 | SgnFun (m, n, s1, s2) =>
adamc@41 762 S.bind2 (sg ctx s1,
adamc@41 763 fn s1' =>
adamc@792 764 S.map2 (sg (bind (ctx, Str (m, n, s1'))) s2,
adamc@41 765 fn s2' =>
adamc@41 766 (SgnFun (m, n, s1', s2'), loc)))
adamc@59 767 | SgnProj _ => S.return2 sAll
adam@1864 768 | SgnWhere (sgn, ms, x, c) =>
adamc@42 769 S.bind2 (sg ctx sgn,
adamc@42 770 fn sgn' =>
adamc@42 771 S.map2 (con ctx c,
adamc@42 772 fn c' =>
adam@1864 773 (SgnWhere (sgn', ms, x, c'), loc)))
adamc@34 774 | SgnError => S.return2 sAll
adamc@34 775 in
adamc@34 776 sg
adamc@34 777 end
adamc@34 778
adamc@34 779 fun mapfold {kind, con, sgn_item, sgn} =
adamc@623 780 mapfoldB {kind = fn () => kind,
adamc@34 781 con = fn () => con,
adamc@34 782 sgn_item = fn () => sgn_item,
adamc@34 783 sgn = fn () => sgn,
adamc@34 784 bind = fn ((), _) => ()} ()
adamc@34 785
adamc@792 786 fun mapB {kind, con, sgn_item, sgn, bind} ctx s =
adamc@792 787 case mapfoldB {kind = fn ctx => fn k => fn () => S.Continue (kind ctx k, ()),
adamc@792 788 con = fn ctx => fn c => fn () => S.Continue (con ctx c, ()),
adamc@792 789 sgn_item = fn ctx => fn sgi => fn () => S.Continue (sgn_item ctx sgi, ()),
adamc@792 790 sgn = fn ctx => fn s => fn () => S.Continue (sgn ctx s, ()),
adamc@792 791 bind = bind} ctx s () of
adamc@792 792 S.Continue (s, ()) => s
adamc@792 793 | S.Return _ => raise Fail "ElabUtil.Sgn.mapB: Impossible"
adamc@792 794
adamc@34 795 fun map {kind, con, sgn_item, sgn} s =
adamc@34 796 case mapfold {kind = fn k => fn () => S.Continue (kind k, ()),
adamc@34 797 con = fn c => fn () => S.Continue (con c, ()),
adamc@34 798 sgn_item = fn si => fn () => S.Continue (sgn_item si, ()),
adamc@34 799 sgn = fn s => fn () => S.Continue (sgn s, ())} s () of
adamc@34 800 S.Return () => raise Fail "Elab_util.Sgn.map"
adamc@34 801 | S.Continue (s, ()) => s
adamc@34 802
adamc@2 803 end
adamc@34 804
adamc@76 805 structure Decl = struct
adamc@76 806
adamc@76 807 datatype binder =
adamc@623 808 RelK of string
adamc@623 809 | RelC of string * Elab.kind
adamc@792 810 | NamedC of string * int * Elab.kind * Elab.con option
adamc@76 811 | RelE of string * Elab.con
adamc@76 812 | NamedE of string * Elab.con
adam@1345 813 | Str of string * int * Elab.sgn
adam@1345 814 | Sgn of string * int * Elab.sgn
adamc@76 815
adamc@76 816 fun mapfoldB {kind = fk, con = fc, exp = fe, sgn_item = fsgi, sgn = fsg, str = fst, decl = fd, bind} =
adamc@76 817 let
adamc@623 818 val mfk = Kind.mapfoldB {kind = fk, bind = fn (ctx, x) => bind (ctx, RelK x)}
adamc@76 819
adamc@76 820 fun bind' (ctx, b) =
adamc@76 821 let
adamc@76 822 val b' = case b of
adamc@623 823 Con.RelK x => RelK x
adamc@623 824 | Con.RelC x => RelC x
adamc@623 825 | Con.NamedC x => NamedC x
adamc@76 826 in
adamc@76 827 bind (ctx, b')
adamc@76 828 end
adamc@76 829 val mfc = Con.mapfoldB {kind = fk, con = fc, bind = bind'}
adamc@76 830
adamc@76 831 fun bind' (ctx, b) =
adamc@76 832 let
adamc@76 833 val b' = case b of
adamc@623 834 Exp.RelK x => RelK x
adamc@623 835 | Exp.RelC x => RelC x
adamc@76 836 | Exp.NamedC x => NamedC x
adamc@76 837 | Exp.RelE x => RelE x
adamc@76 838 | Exp.NamedE x => NamedE x
adamc@76 839 in
adamc@76 840 bind (ctx, b')
adamc@76 841 end
adamc@76 842 val mfe = Exp.mapfoldB {kind = fk, con = fc, exp = fe, bind = bind'}
adamc@76 843
adamc@76 844 fun bind' (ctx, b) =
adamc@76 845 let
adamc@76 846 val b' = case b of
adamc@623 847 Sgn.RelK x => RelK x
adamc@623 848 | Sgn.RelC x => RelC x
adamc@76 849 | Sgn.NamedC x => NamedC x
adam@1345 850 | Sgn.Sgn x => Sgn x
adam@1345 851 | Sgn.Str x => Str x
adamc@76 852 in
adamc@76 853 bind (ctx, b')
adamc@76 854 end
adamc@76 855 val mfsg = Sgn.mapfoldB {kind = fk, con = fc, sgn_item = fsgi, sgn = fsg, bind = bind'}
adamc@76 856
adamc@76 857 fun mfst ctx str acc =
adamc@76 858 S.bindP (mfst' ctx str acc, fst ctx)
adamc@76 859
adamc@76 860 and mfst' ctx (strAll as (str, loc)) =
adamc@76 861 case str of
adamc@76 862 StrConst ds =>
adamc@76 863 S.map2 (ListUtil.mapfoldB (fn (ctx, d) =>
adamc@76 864 (case #1 d of
adamc@792 865 DCon (x, n, k, c) =>
adamc@792 866 bind (ctx, NamedC (x, n, k, SOME c))
adamc@805 867 | DDatatype dts =>
adamc@156 868 let
adamc@805 869 fun doOne ((x, n, xs, xncs), ctx) =
adamc@805 870 let
adamc@805 871 val ctx = bind (ctx, NamedC (x, n, (KType, loc), NONE))
adamc@805 872 in
adamc@805 873 foldl (fn ((x, _, co), ctx) =>
adamc@805 874 let
adamc@805 875 val t =
adamc@805 876 case co of
adamc@805 877 NONE => CNamed n
adamc@805 878 | SOME t => TFun (t, (CNamed n, loc))
adamc@805 879
adamc@805 880 val k = (KType, loc)
adamc@805 881 val t = (t, loc)
adamc@805 882 val t = foldr (fn (x, t) =>
adamc@805 883 (TCFun (Explicit,
adamc@805 884 x,
adamc@805 885 k,
adamc@805 886 t), loc))
adamc@805 887 t xs
adamc@805 888 in
adamc@805 889 bind (ctx, NamedE (x, t))
adamc@805 890 end)
adamc@805 891 ctx xncs
adamc@805 892 end
adamc@156 893 in
adamc@805 894 foldl doOne ctx dts
adamc@156 895 end
adamc@191 896 | DDatatypeImp (x, n, m, ms, x', _, _) =>
adamc@792 897 bind (ctx, NamedC (x, n, (KType, loc),
adamc@792 898 SOME (CModProj (m, ms, x'), loc)))
adamc@76 899 | DVal (x, _, c, _) =>
adamc@76 900 bind (ctx, NamedE (x, c))
adamc@123 901 | DValRec vis =>
adamc@123 902 foldl (fn ((x, _, c, _), ctx) => bind (ctx, NamedE (x, c))) ctx vis
adam@1345 903 | DSgn (x, n, sgn) =>
adam@1345 904 bind (ctx, Sgn (x, n, sgn))
adam@1345 905 | DStr (x, n, sgn, _) =>
adam@1345 906 bind (ctx, Str (x, n, sgn))
adam@1345 907 | DFfiStr (x, n, sgn) =>
adam@1345 908 bind (ctx, Str (x, n, sgn))
adamc@100 909 | DConstraint _ => ctx
adamc@203 910 | DExport _ => ctx
adamc@707 911 | DTable (tn, x, n, c, _, pc, _, cc) =>
adamc@705 912 let
adamc@705 913 val ct = (CModProj (n, [], "sql_table"), loc)
adamc@705 914 val ct = (CApp (ct, c), loc)
adamc@707 915 val ct = (CApp (ct, (CConcat (pc, cc), loc)), loc)
adamc@705 916 in
adamc@705 917 bind (ctx, NamedE (x, ct))
adamc@705 918 end
adamc@338 919 | DSequence (tn, x, n) =>
adamc@338 920 bind (ctx, NamedE (x, (CModProj (n, [], "sql_sequence"), loc)))
adamc@754 921 | DView (tn, x, n, _, c) =>
adamc@754 922 let
adamc@754 923 val ct = (CModProj (n, [], "sql_view"), loc)
adamc@754 924 val ct = (CApp (ct, c), loc)
adamc@754 925 in
adamc@754 926 bind (ctx, NamedE (x, ct))
adamc@754 927 end
adamc@459 928 | DDatabase _ => ctx
adamc@459 929 | DCookie (tn, x, n, c) =>
adamc@459 930 bind (ctx, NamedE (x, (CApp ((CModProj (n, [], "cookie"), loc),
adamc@718 931 c), loc)))
adamc@720 932 | DStyle (tn, x, n) =>
adamc@1073 933 bind (ctx, NamedE (x, (CModProj (n, [], "css_class"), loc)))
adamc@1199 934 | DTask _ => ctx
adam@1294 935 | DPolicy _ => ctx
adam@2010 936 | DOnError _ => ctx
adam@2010 937 | DFfi (x, _, _, t) => bind (ctx, NamedE (x, t)),
adamc@76 938 mfd ctx d)) ctx ds,
adamc@76 939 fn ds' => (StrConst ds', loc))
adamc@76 940 | StrVar _ => S.return2 strAll
adamc@76 941 | StrProj (str, x) =>
adamc@76 942 S.map2 (mfst ctx str,
adamc@76 943 fn str' =>
adamc@76 944 (StrProj (str', x), loc))
adamc@76 945 | StrFun (x, n, sgn1, sgn2, str) =>
adamc@76 946 S.bind2 (mfsg ctx sgn1,
adamc@76 947 fn sgn1' =>
adamc@76 948 S.bind2 (mfsg ctx sgn2,
adamc@76 949 fn sgn2' =>
adamc@76 950 S.map2 (mfst ctx str,
adamc@76 951 fn str' =>
adamc@76 952 (StrFun (x, n, sgn1', sgn2', str'), loc))))
adamc@76 953 | StrApp (str1, str2) =>
adamc@76 954 S.bind2 (mfst ctx str1,
adamc@76 955 fn str1' =>
adamc@76 956 S.map2 (mfst ctx str2,
adamc@76 957 fn str2' =>
adamc@76 958 (StrApp (str1', str2'), loc)))
adamc@76 959 | StrError => S.return2 strAll
adamc@76 960
adamc@76 961 and mfd ctx d acc =
adamc@76 962 S.bindP (mfd' ctx d acc, fd ctx)
adamc@76 963
adamc@76 964 and mfd' ctx (dAll as (d, loc)) =
adamc@76 965 case d of
adamc@76 966 DCon (x, n, k, c) =>
adamc@623 967 S.bind2 (mfk ctx k,
adamc@76 968 fn k' =>
adamc@76 969 S.map2 (mfc ctx c,
adamc@76 970 fn c' =>
adamc@76 971 (DCon (x, n, k', c'), loc)))
adamc@805 972 | DDatatype dts =>
adamc@805 973 S.map2 (ListUtil.mapfold (fn (x, n, xs, xncs) =>
adamc@805 974 S.map2 (ListUtil.mapfold (fn (x, n, c) =>
adamc@805 975 case c of
adamc@805 976 NONE => S.return2 (x, n, c)
adamc@805 977 | SOME c =>
adamc@805 978 S.map2 (mfc ctx c,
adamc@805 979 fn c' => (x, n, SOME c'))) xncs,
adamc@805 980 fn xncs' =>
adamc@805 981 (x, n, xs, xncs'))) dts,
adamc@805 982 fn dts' =>
adamc@805 983 (DDatatype dts', loc))
adamc@191 984 | DDatatypeImp (x, n, m1, ms, s, xs, xncs) =>
adamc@162 985 S.map2 (ListUtil.mapfold (fn (x, n, c) =>
adamc@162 986 case c of
adamc@162 987 NONE => S.return2 (x, n, c)
adamc@162 988 | SOME c =>
adamc@162 989 S.map2 (mfc ctx c,
adamc@162 990 fn c' => (x, n, SOME c'))) xncs,
adamc@162 991 fn xncs' =>
adamc@191 992 (DDatatypeImp (x, n, m1, ms, s, xs, xncs'), loc))
adamc@123 993 | DVal vi =>
adamc@123 994 S.map2 (mfvi ctx vi,
adamc@123 995 fn vi' =>
adamc@123 996 (DVal vi', loc))
adamc@123 997 | DValRec vis =>
adamc@123 998 S.map2 (ListUtil.mapfold (mfvi ctx) vis,
adamc@123 999 fn vis' =>
adamc@123 1000 (DValRec vis', loc))
adamc@76 1001 | DSgn (x, n, sgn) =>
adamc@76 1002 S.map2 (mfsg ctx sgn,
adamc@76 1003 fn sgn' =>
adamc@76 1004 (DSgn (x, n, sgn'), loc))
adamc@76 1005 | DStr (x, n, sgn, str) =>
adamc@76 1006 S.bind2 (mfsg ctx sgn,
adamc@76 1007 fn sgn' =>
adamc@76 1008 S.map2 (mfst ctx str,
adamc@76 1009 fn str' =>
adamc@76 1010 (DStr (x, n, sgn', str'), loc)))
adamc@76 1011 | DFfiStr (x, n, sgn) =>
adamc@76 1012 S.map2 (mfsg ctx sgn,
adamc@76 1013 fn sgn' =>
adamc@76 1014 (DFfiStr (x, n, sgn'), loc))
adamc@88 1015 | DConstraint (c1, c2) =>
adamc@88 1016 S.bind2 (mfc ctx c1,
adamc@88 1017 fn c1' =>
adamc@88 1018 S.map2 (mfc ctx c2,
adamc@88 1019 fn c2' =>
adamc@88 1020 (DConstraint (c1', c2'), loc)))
adamc@109 1021 | DExport (en, sgn, str) =>
adamc@109 1022 S.bind2 (mfsg ctx sgn,
adamc@109 1023 fn sgn' =>
adamc@109 1024 S.map2 (mfst ctx str,
adamc@109 1025 fn str' =>
adamc@109 1026 (DExport (en, sgn', str'), loc)))
adamc@123 1027
adamc@707 1028 | DTable (tn, x, n, c, pe, pc, ce, cc) =>
adamc@704 1029 S.bind2 (mfc ctx c,
adamc@203 1030 fn c' =>
adamc@707 1031 S.bind2 (mfe ctx pe,
adamc@707 1032 fn pe' =>
adamc@707 1033 S.bind2 (mfc ctx pc,
adamc@707 1034 fn pc' =>
adamc@707 1035 S.bind2 (mfe ctx ce,
adamc@707 1036 fn ce' =>
adamc@707 1037 S.map2 (mfc ctx cc,
adamc@707 1038 fn cc' =>
adamc@707 1039 (DTable (tn, x, n, c', pe', pc', ce', cc'), loc))))))
adamc@338 1040 | DSequence _ => S.return2 dAll
adamc@754 1041 | DView (tn, x, n, e, c) =>
adamc@754 1042 S.bind2 (mfe ctx e,
adamc@754 1043 fn e' =>
adamc@754 1044 S.map2 (mfc ctx c,
adamc@754 1045 fn c' =>
adamc@754 1046 (DView (tn, x, n, e', c'), loc)))
adamc@203 1047
adamc@338 1048 | DDatabase _ => S.return2 dAll
adamc@271 1049
adamc@459 1050 | DCookie (tn, x, n, c) =>
adamc@459 1051 S.map2 (mfc ctx c,
adamc@459 1052 fn c' =>
adamc@459 1053 (DCookie (tn, x, n, c'), loc))
adamc@720 1054 | DStyle _ => S.return2 dAll
adamc@1075 1055 | DTask (e1, e2) =>
adamc@1075 1056 S.bind2 (mfe ctx e1,
adamc@1075 1057 fn e1' =>
adamc@1075 1058 S.map2 (mfe ctx e2,
adamc@1075 1059 fn e2' =>
adamc@1075 1060 (DTask (e1', e2'), loc)))
adamc@1199 1061 | DPolicy e1 =>
adamc@1199 1062 S.map2 (mfe ctx e1,
adamc@1199 1063 fn e1' =>
adamc@1199 1064 (DPolicy e1', loc))
adam@1294 1065 | DOnError _ => S.return2 dAll
adam@2010 1066 | DFfi (x, n, modes, t) =>
adam@2010 1067 S.map2 (mfc ctx t,
adam@2010 1068 fn t' =>
adam@2010 1069 (DFfi (x, n, modes, t'), loc))
adamc@459 1070
adamc@123 1071 and mfvi ctx (x, n, c, e) =
adamc@123 1072 S.bind2 (mfc ctx c,
adamc@123 1073 fn c' =>
adamc@123 1074 S.map2 (mfe ctx e,
adamc@123 1075 fn e' =>
adamc@123 1076 (x, n, c', e')))
adamc@76 1077 in
adamc@76 1078 mfd
adamc@76 1079 end
adamc@76 1080
adamc@76 1081 fun mapfold {kind, con, exp, sgn_item, sgn, str, decl} =
adamc@623 1082 mapfoldB {kind = fn () => kind,
adamc@76 1083 con = fn () => con,
adamc@76 1084 exp = fn () => exp,
adamc@76 1085 sgn_item = fn () => sgn_item,
adamc@76 1086 sgn = fn () => sgn,
adamc@76 1087 str = fn () => str,
adamc@76 1088 decl = fn () => decl,
adamc@76 1089 bind = fn ((), _) => ()} ()
adamc@76 1090
adamc@76 1091 fun exists {kind, con, exp, sgn_item, sgn, str, decl} k =
adamc@76 1092 case mapfold {kind = fn k => fn () =>
adamc@76 1093 if kind k then
adamc@76 1094 S.Return ()
adamc@76 1095 else
adamc@76 1096 S.Continue (k, ()),
adamc@76 1097 con = fn c => fn () =>
adamc@76 1098 if con c then
adamc@76 1099 S.Return ()
adamc@76 1100 else
adamc@76 1101 S.Continue (c, ()),
adamc@76 1102 exp = fn e => fn () =>
adamc@76 1103 if exp e then
adamc@76 1104 S.Return ()
adamc@76 1105 else
adamc@76 1106 S.Continue (e, ()),
adamc@76 1107 sgn_item = fn sgi => fn () =>
adamc@76 1108 if sgn_item sgi then
adamc@76 1109 S.Return ()
adamc@76 1110 else
adamc@76 1111 S.Continue (sgi, ()),
adamc@76 1112 sgn = fn x => fn () =>
adamc@76 1113 if sgn x then
adamc@76 1114 S.Return ()
adamc@76 1115 else
adamc@76 1116 S.Continue (x, ()),
adamc@76 1117 str = fn x => fn () =>
adamc@76 1118 if str x then
adamc@76 1119 S.Return ()
adamc@76 1120 else
adamc@76 1121 S.Continue (x, ()),
adamc@76 1122 decl = fn x => fn () =>
adamc@76 1123 if decl x then
adamc@76 1124 S.Return ()
adamc@76 1125 else
adamc@76 1126 S.Continue (x, ())} k () of
adamc@76 1127 S.Return _ => true
adamc@76 1128 | S.Continue _ => false
adamc@76 1129
adamc@76 1130 fun search {kind, con, exp, sgn_item, sgn, str, decl} k =
adamc@76 1131 case mapfold {kind = fn x => fn () =>
adamc@76 1132 case kind x of
adamc@76 1133 NONE => S.Continue (x, ())
adamc@76 1134 | SOME v => S.Return v,
adamc@76 1135
adamc@76 1136 con = fn x => fn () =>
adamc@76 1137 case con x of
adamc@76 1138 NONE => S.Continue (x, ())
adamc@76 1139 | SOME v => S.Return v,
adamc@76 1140
adamc@76 1141 exp = fn x => fn () =>
adamc@76 1142 case exp x of
adamc@76 1143 NONE => S.Continue (x, ())
adamc@76 1144 | SOME v => S.Return v,
adamc@76 1145
adamc@76 1146 sgn_item = fn x => fn () =>
adamc@76 1147 case sgn_item x of
adamc@76 1148 NONE => S.Continue (x, ())
adamc@76 1149 | SOME v => S.Return v,
adamc@76 1150
adamc@76 1151 sgn = fn x => fn () =>
adamc@76 1152 case sgn x of
adamc@76 1153 NONE => S.Continue (x, ())
adamc@76 1154 | SOME v => S.Return v,
adamc@76 1155
adamc@76 1156 str = fn x => fn () =>
adamc@76 1157 case str x of
adamc@76 1158 NONE => S.Continue (x, ())
adamc@76 1159 | SOME v => S.Return v,
adamc@76 1160
adamc@76 1161 decl = fn x => fn () =>
adamc@76 1162 case decl x of
adamc@76 1163 NONE => S.Continue (x, ())
adamc@76 1164 | SOME v => S.Return v
adamc@76 1165
adamc@76 1166 } k () of
adamc@76 1167 S.Return x => SOME x
adamc@76 1168 | S.Continue _ => NONE
adamc@76 1169
adamc@448 1170 fun foldMapB {kind, con, exp, sgn_item, sgn, str, decl, bind} ctx st d =
adamc@623 1171 case mapfoldB {kind = fn ctx => fn x => fn st => S.Continue (kind (ctx, x, st)),
adamc@448 1172 con = fn ctx => fn x => fn st => S.Continue (con (ctx, x, st)),
adamc@448 1173 exp = fn ctx => fn x => fn st => S.Continue (exp (ctx, x, st)),
adamc@448 1174 sgn_item = fn ctx => fn x => fn st => S.Continue (sgn_item (ctx, x, st)),
adamc@448 1175 sgn = fn ctx => fn x => fn st => S.Continue (sgn (ctx, x, st)),
adamc@448 1176 str = fn ctx => fn x => fn st => S.Continue (str (ctx, x, st)),
adamc@448 1177 decl = fn ctx => fn x => fn st => S.Continue (decl (ctx, x, st)),
adamc@448 1178 bind = bind} ctx d st of
adamc@448 1179 S.Continue x => x
adamc@448 1180 | S.Return _ => raise Fail "ElabUtil.Decl.foldMapB: Impossible"
adamc@448 1181
adam@1345 1182 fun map {kind, con, exp, sgn_item, sgn, str, decl} s =
adam@1345 1183 case mapfold {kind = fn k => fn () => S.Continue (kind k, ()),
adam@1345 1184 con = fn c => fn () => S.Continue (con c, ()),
adam@1345 1185 exp = fn e => fn () => S.Continue (exp e, ()),
adam@1345 1186 sgn_item = fn si => fn () => S.Continue (sgn_item si, ()),
adam@1345 1187 sgn = fn s => fn () => S.Continue (sgn s, ()),
adam@1345 1188 str = fn si => fn () => S.Continue (str si, ()),
adam@1345 1189 decl = fn s => fn () => S.Continue (decl s, ())} s () of
adam@1345 1190 S.Return () => raise Fail "Elab_util.Decl.map"
adam@1345 1191 | S.Continue (s, ()) => s
adam@1345 1192
adam@1345 1193 fun mapB {kind, con, exp, sgn_item, sgn, str, decl, bind} ctx s =
adam@1345 1194 case mapfoldB {kind = fn ctx => fn k => fn () => S.Continue (kind ctx k, ()),
adam@1345 1195 con = fn ctx => fn c => fn () => S.Continue (con ctx c, ()),
adam@1345 1196 exp = fn ctx => fn c => fn () => S.Continue (exp ctx c, ()),
adam@1345 1197 sgn_item = fn ctx => fn sgi => fn () => S.Continue (sgn_item ctx sgi, ()),
adam@1345 1198 sgn = fn ctx => fn s => fn () => S.Continue (sgn ctx s, ()),
adam@1345 1199 str = fn ctx => fn sgi => fn () => S.Continue (str ctx sgi, ()),
adam@1345 1200 decl = fn ctx => fn s => fn () => S.Continue (decl ctx s, ()),
adam@1345 1201 bind = bind} ctx s () of
adam@1345 1202 S.Continue (s, ()) => s
adam@1345 1203 | S.Return _ => raise Fail "ElabUtil.Decl.mapB: Impossible"
adam@1345 1204
adam@1732 1205 fun fold {kind, con, exp, sgn_item, sgn, str, decl} (st : 'a) d : 'a =
adam@1732 1206 case mapfold {kind = fn k => fn st => S.Continue (k, kind (k, st)),
adam@1732 1207 con = fn c => fn st => S.Continue (c, con (c, st)),
adam@1732 1208 exp = fn e => fn st => S.Continue (e, exp (e, st)),
adam@1732 1209 sgn_item = fn sgi => fn st => S.Continue (sgi, sgn_item (sgi, st)),
adam@1732 1210 sgn = fn s => fn st => S.Continue (s, sgn (s, st)),
adam@1732 1211 str = fn str' => fn st => S.Continue (str', str (str', st)),
adam@1732 1212 decl = fn d => fn st => S.Continue (d, decl (d, st))} d st of
adam@1732 1213 S.Continue (_, st) => st
adam@1732 1214 | S.Return _ => raise Fail "ElabUtil.Decl.fold: Impossible"
adam@1732 1215
adamc@448 1216 end
adamc@448 1217
adamc@448 1218 structure File = struct
adamc@448 1219
adamc@448 1220 fun maxName ds = foldl (fn (d, count) => Int.max (maxNameDecl d, count)) 0 ds
adamc@448 1221
adamc@448 1222 and maxNameDecl (d, _) =
adamc@448 1223 case d of
adamc@448 1224 DCon (_, n, _, _) => n
adamc@805 1225 | DDatatype dts =>
adamc@805 1226 foldl (fn ((_, n, _, ns), max) =>
adamc@448 1227 foldl (fn ((_, n', _), m) => Int.max (n', m))
adamc@805 1228 (Int.max (n, max)) ns) 0 dts
adamc@448 1229 | DDatatypeImp (_, n1, n2, _, _, _, ns) =>
adamc@448 1230 foldl (fn ((_, n', _), m) => Int.max (n', m))
adamc@448 1231 (Int.max (n1, n2)) ns
adamc@448 1232 | DVal (_, n, _, _) => n
adamc@448 1233 | DValRec vis => foldl (fn ((_, n, _, _), count) => Int.max (n, count)) 0 vis
adamc@448 1234 | DStr (_, n, sgn, str) => Int.max (n, Int.max (maxNameSgn sgn, maxNameStr str))
adamc@448 1235 | DSgn (_, n, sgn) => Int.max (n, maxNameSgn sgn)
adamc@448 1236 | DFfiStr (_, n, sgn) => Int.max (n, maxNameSgn sgn)
adamc@448 1237 | DConstraint _ => 0
adamc@448 1238 | DExport _ => 0
adamc@707 1239 | DTable (n1, _, n2, _, _, _, _, _) => Int.max (n1, n2)
adamc@459 1240 | DSequence (n1, _, n2) => Int.max (n1, n2)
adamc@754 1241 | DView (n1, _, n2, _, _) => Int.max (n1, n2)
adamc@448 1242 | DDatabase _ => 0
adamc@459 1243 | DCookie (n1, _, n2, _) => Int.max (n1, n2)
adamc@720 1244 | DStyle (n1, _, n2) => Int.max (n1, n2)
adamc@1075 1245 | DTask _ => 0
adamc@1199 1246 | DPolicy _ => 0
adam@1294 1247 | DOnError _ => 0
adam@2010 1248 | DFfi (_, n, _, _) => n
adamc@448 1249 and maxNameStr (str, _) =
adamc@448 1250 case str of
adamc@448 1251 StrConst ds => maxName ds
adamc@448 1252 | StrVar n => n
adamc@448 1253 | StrProj (str, _) => maxNameStr str
adamc@448 1254 | StrFun (_, n, dom, ran, str) => foldl Int.max n [maxNameSgn dom, maxNameSgn ran, maxNameStr str]
adamc@448 1255 | StrApp (str1, str2) => Int.max (maxNameStr str1, maxNameStr str2)
adamc@448 1256 | StrError => 0
adamc@448 1257
adamc@448 1258 and maxNameSgn (sgn, _) =
adamc@448 1259 case sgn of
adamc@448 1260 SgnConst sgis => foldl (fn (sgi, count) => Int.max (maxNameSgi sgi, count)) 0 sgis
adamc@448 1261 | SgnVar n => n
adamc@448 1262 | SgnFun (_, n, dom, ran) => Int.max (n, Int.max (maxNameSgn dom, maxNameSgn ran))
adam@1864 1263 | SgnWhere (sgn, _, _, _) => maxNameSgn sgn
adamc@448 1264 | SgnProj (n, _, _) => n
adamc@448 1265 | SgnError => 0
adamc@448 1266
adamc@448 1267 and maxNameSgi (sgi, _) =
adamc@448 1268 case sgi of
adamc@448 1269 SgiConAbs (_, n, _) => n
adamc@448 1270 | SgiCon (_, n, _, _) => n
adamc@805 1271 | SgiDatatype dts =>
adamc@805 1272 foldl (fn ((_, n, _, ns), max) =>
adamc@805 1273 foldl (fn ((_, n', _), m) => Int.max (n', m))
adamc@805 1274 (Int.max (n, max)) ns) 0 dts
adamc@448 1275 | SgiDatatypeImp (_, n1, n2, _, _, _, ns) =>
adamc@448 1276 foldl (fn ((_, n', _), m) => Int.max (n', m))
adamc@448 1277 (Int.max (n1, n2)) ns
adamc@448 1278 | SgiVal (_, n, _) => n
adam@2190 1279 | SgiStr (_, _, n, sgn) => Int.max (n, maxNameSgn sgn)
adamc@448 1280 | SgiSgn (_, n, sgn) => Int.max (n, maxNameSgn sgn)
adamc@448 1281 | SgiConstraint _ => 0
adamc@563 1282 | SgiClassAbs (_, n, _) => n
adamc@563 1283 | SgiClass (_, n, _, _) => n
adam@1584 1284
adam@1584 1285 fun findDecl pred file =
adam@1584 1286 let
adam@1584 1287 fun decl d =
adam@1584 1288 let
adam@1584 1289 val r = case #1 d of
adam@1584 1290 DStr (_, _, _, s) => str s
adam@1584 1291 | _ => NONE
adam@1584 1292 in
adam@1584 1293 case r of
adam@1584 1294 NONE => if pred d then SOME d else NONE
adam@1584 1295 | _ => r
adam@1584 1296 end
adam@1584 1297
adam@1584 1298 and str s =
adam@1584 1299 case #1 s of
adam@1584 1300 StrConst ds => ListUtil.search decl ds
adam@1584 1301 | StrFun (_, _, _, _, s) => str s
adam@1584 1302 | StrApp (s1, s2) =>
adam@1584 1303 (case str s1 of
adam@1584 1304 NONE => str s2
adam@1584 1305 | r => r)
adam@1584 1306 | _ => NONE
adam@1584 1307 in
adam@1584 1308 ListUtil.search decl file
adam@1584 1309 end
adamc@448 1310
adamc@34 1311 end
adamc@76 1312
adamc@76 1313 end