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annotate src/mono_util.sml @ 1714:d6c45026240d

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Do a lot more type simplification for error messages
author Adam Chlipala <adam@chlipala.net>
date Mon, 16 Apr 2012 09:46:42 -0400
parents 0577be31a435
children 38297294cf98
rev   line source
adamc@26 1 (* Copyright (c) 2008, Adam Chlipala
adamc@26 2 * All rights reserved.
adamc@26 3 *
adamc@26 4 * Redistribution and use in source and binary forms, with or without
adamc@26 5 * modification, are permitted provided that the following conditions are met:
adamc@26 6 *
adamc@26 7 * - Redistributions of source code must retain the above copyright notice,
adamc@26 8 * this list of conditions and the following disclaimer.
adamc@26 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@26 10 * this list of conditions and the following disclaimer in the documentation
adamc@26 11 * and/or other materials provided with the distribution.
adamc@26 12 * - The names of contributors may not be used to endorse or promote products
adamc@26 13 * derived from this software without specific prior written permission.
adamc@26 14 *
adamc@26 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@26 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@26 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@26 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@26 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@26 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@26 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@26 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@26 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@26 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@26 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@26 26 *)
adamc@26 27
adamc@26 28 structure MonoUtil :> MONO_UTIL = struct
adamc@26 29
adamc@26 30 open Mono
adamc@26 31
adamc@26 32 structure S = Search
adamc@26 33
adamc@267 34 val dummyt = (TRecord [], ErrorMsg.dummySpan)
adamc@267 35
adamc@26 36 structure Typ = struct
adamc@26 37
adamc@193 38 open Order
adamc@109 39
adamc@109 40 fun compare ((t1, _), (t2, _)) =
adamc@109 41 case (t1, t2) of
adamc@109 42 (TFun (d1, r1), TFun (d2, r2)) =>
adamc@109 43 join (compare (d1, d2), fn () => compare (r1, r2))
adamc@109 44 | (TRecord xts1, TRecord xts2) =>
adamc@109 45 let
adamc@109 46 val xts1 = sortFields xts1
adamc@109 47 val xts2 = sortFields xts2
adamc@109 48 in
adamc@109 49 joinL compareFields (xts1, xts2)
adamc@109 50 end
adamc@196 51 | (TDatatype (n1, _), TDatatype (n2, _)) => Int.compare (n1, n2)
adamc@109 52 | (TFfi (m1, x1), TFfi (m2, x2)) => join (String.compare (m1, m2), fn () => String.compare (x1, x2))
adamc@288 53 | (TOption t1, TOption t2) => compare (t1, t2)
adamc@757 54 | (TList t1, TList t2) => compare (t1, t2)
adamc@577 55 | (TSource, TSource) => EQUAL
adamc@568 56 | (TSignal t1, TSignal t2) => compare (t1, t2)
adamc@109 57
adamc@109 58 | (TFun _, _) => LESS
adamc@109 59 | (_, TFun _) => GREATER
adamc@109 60
adamc@109 61 | (TRecord _, _) => LESS
adamc@109 62 | (_, TRecord _) => GREATER
adamc@109 63
adamc@168 64 | (TDatatype _, _) => LESS
adamc@168 65 | (_, TDatatype _) => GREATER
adamc@109 66
adamc@288 67 | (TFfi _, _) => LESS
adamc@288 68 | (_, TFfi _) => GREATER
adamc@288 69
adamc@568 70 | (TOption _, _) => LESS
adamc@568 71 | (_, TOption _) => GREATER
adamc@568 72
adamc@757 73 | (TList _, _) => LESS
adamc@757 74 | (_, TList _) => GREATER
adamc@757 75
adamc@577 76 | (TSource, _) => LESS
adamc@577 77 | (_, TSource) => GREATER
adamc@577 78
adamc@109 79 and compareFields ((x1, t1), (x2, t2)) =
adamc@109 80 join (String.compare (x1, x2),
adamc@109 81 fn () => compare (t1, t2))
adamc@109 82
adam@1314 83 and sortFields xts = ListMergeSort.sort (fn ((x, _), (y, _)) => String.compare (x, y) = GREATER) xts
adamc@109 84
adamc@26 85 fun mapfold fc =
adamc@26 86 let
adamc@26 87 fun mft c acc =
adamc@26 88 S.bindP (mft' c acc, fc)
adamc@26 89
adamc@26 90 and mft' (cAll as (c, loc)) =
adamc@26 91 case c of
adamc@26 92 TFun (t1, t2) =>
adamc@26 93 S.bind2 (mft t1,
adamc@26 94 fn t1' =>
adamc@26 95 S.map2 (mft t2,
adamc@26 96 fn t2' =>
adamc@26 97 (TFun (t1', t2'), loc)))
adamc@26 98 | TRecord xts =>
adamc@26 99 S.map2 (ListUtil.mapfold (fn (x, t) =>
adamc@26 100 S.map2 (mft t,
adamc@26 101 fn t' =>
adamc@26 102 (x, t')))
adamc@26 103 xts,
adamc@26 104 fn xts' => (TRecord xts', loc))
adamc@168 105 | TDatatype _ => S.return2 cAll
adamc@51 106 | TFfi _ => S.return2 cAll
adamc@288 107 | TOption t =>
adamc@288 108 S.map2 (mft t,
adamc@288 109 fn t' =>
adamc@288 110 (TOption t, loc))
adamc@757 111 | TList t =>
adamc@757 112 S.map2 (mft t,
adamc@757 113 fn t' =>
adamc@757 114 (TList t, loc))
adamc@577 115 | TSource => S.return2 cAll
adamc@568 116 | TSignal t =>
adamc@568 117 S.map2 (mft t,
adamc@568 118 fn t' =>
adamc@568 119 (TSignal t, loc))
adamc@26 120 in
adamc@26 121 mft
adamc@26 122 end
adamc@26 123
adamc@26 124 fun map typ c =
adamc@26 125 case mapfold (fn c => fn () => S.Continue (typ c, ())) c () of
adamc@26 126 S.Return () => raise Fail "Mono_util.Typ.map"
adamc@26 127 | S.Continue (c, ()) => c
adamc@26 128
adamc@26 129 fun fold typ s c =
adamc@26 130 case mapfold (fn c => fn s => S.Continue (c, typ (c, s))) c s of
adamc@26 131 S.Continue (_, s) => s
adamc@26 132 | S.Return _ => raise Fail "MonoUtil.Typ.fold: Impossible"
adamc@26 133
adamc@26 134 fun exists typ k =
adamc@26 135 case mapfold (fn c => fn () =>
adamc@26 136 if typ c then
adamc@26 137 S.Return ()
adamc@26 138 else
adamc@26 139 S.Continue (c, ())) k () of
adamc@26 140 S.Return _ => true
adamc@26 141 | S.Continue _ => false
adamc@26 142
adamc@26 143 end
adamc@26 144
adamc@26 145 structure Exp = struct
adamc@26 146
adamc@26 147 datatype binder =
adamc@168 148 Datatype of string * int * (string * int * typ option) list
adamc@26 149 | RelE of string * typ
adamc@109 150 | NamedE of string * int * typ * exp option * string
adamc@26 151
adamc@26 152 fun mapfoldB {typ = fc, exp = fe, bind} =
adamc@26 153 let
adamc@26 154 val mft = Typ.mapfold fc
adamc@26 155
adamc@26 156 fun mfe ctx e acc =
adamc@26 157 S.bindP (mfe' ctx e acc, fe ctx)
adamc@26 158
adam@1663 159 and mfet ctx (e, t) =
adam@1663 160 S.bind2 (mfe ctx e,
adam@1663 161 fn e' =>
adam@1663 162 S.map2 (mft t,
adam@1663 163 fn t' => (e', t')))
adam@1663 164
adamc@26 165 and mfe' ctx (eAll as (e, loc)) =
adamc@26 166 case e of
adamc@26 167 EPrim _ => S.return2 eAll
adamc@26 168 | ERel _ => S.return2 eAll
adamc@26 169 | ENamed _ => S.return2 eAll
adamc@188 170 | ECon (_, _, NONE) => S.return2 eAll
adamc@188 171 | ECon (dk, n, SOME e) =>
adamc@178 172 S.map2 (mfe ctx e,
adamc@178 173 fn e' =>
adamc@188 174 (ECon (dk, n, SOME e'), loc))
adamc@297 175 | ENone t =>
adamc@297 176 S.map2 (mft t,
adamc@297 177 fn t' =>
adamc@297 178 (ENone t', loc))
adamc@290 179 | ESome (t, e) =>
adamc@290 180 S.bind2 (mft t,
adamc@290 181 fn t' =>
adamc@290 182 S.map2 (mfe ctx e,
adamc@290 183 fn e' =>
adamc@290 184 (ESome (t', e'), loc)))
adamc@51 185 | EFfi _ => S.return2 eAll
adamc@51 186 | EFfiApp (m, x, es) =>
adam@1663 187 S.map2 (ListUtil.mapfold (fn e => mfet ctx e) es,
adamc@51 188 fn es' =>
adamc@51 189 (EFfiApp (m, x, es'), loc))
adamc@26 190 | EApp (e1, e2) =>
adamc@26 191 S.bind2 (mfe ctx e1,
adamc@26 192 fn e1' =>
adamc@26 193 S.map2 (mfe ctx e2,
adamc@26 194 fn e2' =>
adamc@26 195 (EApp (e1', e2'), loc)))
adamc@26 196 | EAbs (x, dom, ran, e) =>
adamc@26 197 S.bind2 (mft dom,
adamc@26 198 fn dom' =>
adamc@26 199 S.bind2 (mft ran,
adamc@26 200 fn ran' =>
adamc@26 201 S.map2 (mfe (bind (ctx, RelE (x, dom'))) e,
adamc@26 202 fn e' =>
adamc@26 203 (EAbs (x, dom', ran', e'), loc))))
adamc@26 204
adamc@387 205 | EUnop (s, e) =>
adamc@387 206 S.map2 (mfe ctx e,
adamc@387 207 fn e' =>
adamc@387 208 (EUnop (s, e'), loc))
adam@1360 209 | EBinop (bi, s, e1, e2) =>
adamc@387 210 S.bind2 (mfe ctx e1,
adamc@387 211 fn e1' =>
adamc@387 212 S.map2 (mfe ctx e2,
adamc@387 213 fn e2' =>
adam@1360 214 (EBinop (bi, s, e1', e2'), loc)))
adamc@387 215
adamc@26 216 | ERecord xes =>
adamc@29 217 S.map2 (ListUtil.mapfold (fn (x, e, t) =>
adamc@29 218 S.bind2 (mfe ctx e,
adamc@26 219 fn e' =>
adamc@29 220 S.map2 (mft t,
adamc@29 221 fn t' =>
adamc@29 222 (x, e', t'))))
adamc@26 223 xes,
adamc@26 224 fn xes' =>
adamc@26 225 (ERecord xes', loc))
adamc@26 226 | EField (e, x) =>
adamc@26 227 S.map2 (mfe ctx e,
adamc@26 228 fn e' =>
adamc@26 229 (EField (e', x), loc))
adamc@94 230
adamc@182 231 | ECase (e, pes, {disc, result}) =>
adamc@178 232 S.bind2 (mfe ctx e,
adamc@178 233 fn e' =>
adamc@178 234 S.bind2 (ListUtil.mapfold (fn (p, e) =>
adamc@179 235 let
adamc@179 236 fun pb ((p, _), ctx) =
adamc@179 237 case p of
adamc@179 238 PWild => ctx
adamc@182 239 | PVar (x, t) => bind (ctx, RelE (x, t))
adamc@179 240 | PPrim _ => ctx
adamc@188 241 | PCon (_, _, NONE) => ctx
adamc@188 242 | PCon (_, _, SOME p) => pb (p, ctx)
adamc@182 243 | PRecord xps => foldl (fn ((_, p, _), ctx) =>
adamc@179 244 pb (p, ctx)) ctx xps
adamc@288 245 | PNone _ => ctx
adamc@288 246 | PSome (_, p) => pb (p, ctx)
adamc@179 247 in
adamc@179 248 S.map2 (mfe (pb (p, ctx)) e,
adamc@179 249 fn e' => (p, e'))
adamc@179 250 end) pes,
adamc@178 251 fn pes' =>
adamc@182 252 S.bind2 (mft disc,
adamc@182 253 fn disc' =>
adamc@182 254 S.map2 (mft result,
adamc@182 255 fn result' =>
adamc@182 256 (ECase (e', pes', {disc = disc', result = result'}), loc)))))
adamc@178 257
adamc@283 258 | EError (e, t) =>
adamc@283 259 S.bind2 (mfe ctx e,
adamc@283 260 fn e' =>
adamc@283 261 S.map2 (mft t,
adamc@283 262 fn t' =>
adamc@283 263 (EError (e', t'), loc)))
adamc@741 264 | EReturnBlob {blob, mimeType, t} =>
adamc@741 265 S.bind2 (mfe ctx blob,
adamc@741 266 fn blob' =>
adamc@741 267 S.bind2 (mfe ctx mimeType,
adamc@741 268 fn mimeType' =>
adamc@741 269 S.map2 (mft t,
adamc@741 270 fn t' =>
adamc@741 271 (EReturnBlob {blob = blob', mimeType = mimeType', t = t'}, loc))))
adamc@1065 272 | ERedirect (e, t) =>
adamc@1065 273 S.bind2 (mfe ctx e,
adamc@1065 274 fn e' =>
adamc@1065 275 S.map2 (mft t,
adamc@1065 276 fn t' =>
adamc@1065 277 (ERedirect (e', t'), loc)))
adamc@741 278
adamc@94 279 | EStrcat (e1, e2) =>
adamc@94 280 S.bind2 (mfe ctx e1,
adamc@94 281 fn e1' =>
adamc@94 282 S.map2 (mfe ctx e2,
adamc@94 283 fn e2' =>
adamc@94 284 (EStrcat (e1', e2'), loc)))
adamc@102 285
adamc@102 286 | EWrite e =>
adamc@102 287 S.map2 (mfe ctx e,
adamc@102 288 fn e' =>
adamc@102 289 (EWrite e', loc))
adamc@106 290
adamc@106 291 | ESeq (e1, e2) =>
adamc@106 292 S.bind2 (mfe ctx e1,
adamc@106 293 fn e1' =>
adamc@106 294 S.map2 (mfe ctx e2,
adamc@106 295 fn e2' =>
adamc@106 296 (ESeq (e1', e2'), loc)))
adamc@251 297 | ELet (x, t, e1, e2) =>
adamc@251 298 S.bind2 (mft t,
adamc@251 299 fn t' =>
adamc@251 300 S.bind2 (mfe ctx e1,
adamc@251 301 fn e1' =>
adamc@252 302 S.map2 (mfe (bind (ctx, RelE (x, t'))) e2,
adamc@251 303 fn e2' =>
adamc@251 304 (ELet (x, t', e1', e2'), loc))))
adamc@111 305
adamc@111 306 | EClosure (n, es) =>
adamc@111 307 S.map2 (ListUtil.mapfold (mfe ctx) es,
adamc@111 308 fn es' =>
adamc@111 309 (EClosure (n, es'), loc))
adamc@252 310
adamc@252 311 | EQuery {exps, tables, state, query, body, initial} =>
adamc@252 312 S.bind2 (ListUtil.mapfold (fn (x, t) =>
adamc@252 313 S.map2 (mft t,
adamc@252 314 fn t' => (x, t'))) exps,
adamc@252 315 fn exps' =>
adamc@252 316 S.bind2 (ListUtil.mapfold (fn (x, xts) =>
adamc@252 317 S.map2 (ListUtil.mapfold
adamc@252 318 (fn (x, t) =>
adamc@252 319 S.map2 (mft t,
adamc@252 320 fn t' => (x, t'))) xts,
adamc@252 321 fn xts' => (x, xts'))) tables,
adamc@252 322 fn tables' =>
adamc@252 323 S.bind2 (mft state,
adamc@252 324 fn state' =>
adamc@252 325 S.bind2 (mfe ctx query,
adamc@252 326 fn query' =>
adamc@267 327 S.bind2 (mfe (bind (bind (ctx, RelE ("r", dummyt)),
adamc@267 328 RelE ("acc", dummyt)))
adamc@267 329 body,
adamc@267 330 fn body' =>
adamc@267 331 S.map2 (mfe ctx initial,
adamc@267 332 fn initial' =>
adamc@267 333 (EQuery {exps = exps',
adamc@267 334 tables = tables',
adamc@267 335 state = state',
adamc@267 336 query = query',
adamc@267 337 body = body',
adamc@267 338 initial = initial'},
adamc@267 339 loc)))))))
adamc@307 340
adam@1293 341 | EDml (e, fm) =>
adamc@307 342 S.map2 (mfe ctx e,
adamc@307 343 fn e' =>
adam@1293 344 (EDml (e', fm), loc))
adamc@338 345 | ENextval e =>
adamc@338 346 S.map2 (mfe ctx e,
adamc@338 347 fn e' =>
adamc@338 348 (ENextval e', loc))
adamc@1073 349 | ESetval (e1, e2) =>
adamc@1073 350 S.bind2 (mfe ctx e1,
adamc@1073 351 fn e1' =>
adamc@1073 352 S.map2 (mfe ctx e2,
adamc@1073 353 fn e2' =>
adamc@1073 354 (ESetval (e1', e2'), loc)))
adamc@1112 355 | EUnurlify (e, t, b) =>
adamc@463 356 S.bind2 (mfe ctx e,
adamc@463 357 fn e' =>
adamc@463 358 S.map2 (mft t,
adamc@463 359 fn t' =>
adamc@1112 360 (EUnurlify (e', t', b), loc)))
adamc@815 361 | EJavaScript (m, e) =>
adamc@729 362 S.bind2 (mfmode ctx m,
adamc@729 363 fn m' =>
adamc@729 364 S.map2 (mfe ctx e,
adamc@729 365 fn e' =>
adamc@815 366 (EJavaScript (m', e'), loc)))
adamc@569 367
adamc@568 368 | ESignalReturn e =>
adamc@568 369 S.map2 (mfe ctx e,
adamc@568 370 fn e' =>
adamc@568 371 (ESignalReturn e', loc))
adamc@572 372 | ESignalBind (e1, e2) =>
adamc@572 373 S.bind2 (mfe ctx e1,
adamc@572 374 fn e1' =>
adamc@572 375 S.map2 (mfe ctx e2,
adamc@572 376 fn e2' =>
adamc@572 377 (ESignalBind (e1', e2'), loc)))
adamc@574 378 | ESignalSource e =>
adamc@574 379 S.map2 (mfe ctx e,
adamc@574 380 fn e' =>
adamc@574 381 (ESignalSource e', loc))
adamc@608 382
adamc@1020 383 | EServerCall (s, t, eff) =>
adamc@642 384 S.bind2 (mfe ctx s,
adamc@642 385 fn s' =>
adamc@1020 386 S.map2 (mft t,
adamc@1020 387 fn t' =>
adamc@1020 388 (EServerCall (s', t', eff), loc)))
adamc@1021 389 | ERecv (s, t) =>
adamc@670 390 S.bind2 (mfe ctx s,
adamc@695 391 fn s' =>
adamc@1021 392 S.map2 (mft t,
adamc@1021 393 fn t' =>
adamc@1021 394 (ERecv (s', t'), loc)))
adamc@1021 395 | ESleep s =>
adamc@1021 396 S.map2 (mfe ctx s,
adamc@695 397 fn s' =>
adamc@1021 398 (ESleep s', loc))
adamc@1021 399
adamc@1021 400 | ESpawn s =>
adamc@1021 401 S.map2 (mfe ctx s,
adamc@1021 402 fn s' =>
adamc@1021 403 (ESpawn s', loc))
adamc@729 404
adamc@729 405 and mfmode ctx mode =
adamc@729 406 case mode of
adamc@729 407 Attribute => S.return2 mode
adamc@729 408 | Script => S.return2 mode
adamc@729 409 | Source t =>
adamc@729 410 S.map2 (mft t,
adamc@729 411 fn t' => Source t')
adamc@26 412 in
adamc@26 413 mfe
adamc@26 414 end
adamc@26 415
adamc@26 416 fun mapfold {typ = fc, exp = fe} =
adamc@26 417 mapfoldB {typ = fc,
adamc@26 418 exp = fn () => fe,
adamc@26 419 bind = fn ((), _) => ()} ()
adamc@26 420
adamc@26 421 fun mapB {typ, exp, bind} ctx e =
adamc@26 422 case mapfoldB {typ = fn c => fn () => S.Continue (typ c, ()),
adamc@26 423 exp = fn ctx => fn e => fn () => S.Continue (exp ctx e, ()),
adamc@26 424 bind = bind} ctx e () of
adamc@26 425 S.Continue (e, ()) => e
adamc@26 426 | S.Return _ => raise Fail "MonoUtil.Exp.mapB: Impossible"
adamc@26 427
adamc@26 428 fun map {typ, exp} e =
adamc@26 429 case mapfold {typ = fn c => fn () => S.Continue (typ c, ()),
adamc@26 430 exp = fn e => fn () => S.Continue (exp e, ())} e () of
adamc@26 431 S.Return () => raise Fail "Mono_util.Exp.map"
adamc@26 432 | S.Continue (e, ()) => e
adamc@26 433
adamc@26 434 fun fold {typ, exp} s e =
adamc@26 435 case mapfold {typ = fn c => fn s => S.Continue (c, typ (c, s)),
adamc@26 436 exp = fn e => fn s => S.Continue (e, exp (e, s))} e s of
adamc@26 437 S.Continue (_, s) => s
adamc@26 438 | S.Return _ => raise Fail "MonoUtil.Exp.fold: Impossible"
adamc@26 439
adamc@26 440 fun exists {typ, exp} k =
adamc@26 441 case mapfold {typ = fn c => fn () =>
adamc@26 442 if typ c then
adamc@26 443 S.Return ()
adamc@26 444 else
adamc@26 445 S.Continue (c, ()),
adamc@26 446 exp = fn e => fn () =>
adamc@26 447 if exp e then
adamc@26 448 S.Return ()
adamc@26 449 else
adamc@26 450 S.Continue (e, ())} k () of
adamc@26 451 S.Return _ => true
adamc@26 452 | S.Continue _ => false
adamc@26 453
adamc@919 454 fun existsB {typ, exp, bind} ctx e =
adamc@919 455 case mapfoldB {typ = fn t => fn () =>
adamc@919 456 if typ t then
adamc@919 457 S.Return ()
adamc@919 458 else
adamc@919 459 S.Continue (t, ()),
adamc@919 460 exp = fn ctx => fn e => fn () =>
adamc@919 461 if exp (ctx, e) then
adamc@919 462 S.Return ()
adamc@919 463 else
adamc@919 464 S.Continue (e, ()),
adamc@919 465 bind = bind} ctx e () of
adamc@919 466 S.Return _ => true
adamc@919 467 | S.Continue _ => false
adamc@919 468
adamc@567 469 fun foldB {typ, exp, bind} ctx s e =
adamc@567 470 case mapfoldB {typ = fn t => fn s => S.Continue (t, typ (t, s)),
adamc@567 471 exp = fn ctx => fn e => fn s => S.Continue (e, exp (ctx, e, s)),
adamc@567 472 bind = bind} ctx e s of
adamc@567 473 S.Continue (_, s) => s
adamc@567 474 | S.Return _ => raise Fail "MonoUtil.Exp.foldB: Impossible"
adamc@567 475
adam@1612 476 fun appLoc f =
adam@1612 477 let
adam@1612 478 fun appl e =
adam@1612 479 (f e;
adam@1612 480 case #1 e of
adam@1612 481 EPrim _ => ()
adam@1612 482 | ERel _ => ()
adam@1612 483 | ENamed _ => ()
adam@1612 484 | ECon (_, _, eo) => Option.app appl eo
adam@1612 485 | ENone _ => ()
adam@1612 486 | ESome (_, e) => appl e
adam@1612 487 | EFfi _ => ()
adam@1663 488 | EFfiApp (_, _, es) => app (appl o #1) es
adam@1612 489 | EApp (e1, e2) => (appl e1; appl e2)
adam@1612 490 | EAbs (_, _, _, e1) => appl e1
adam@1612 491 | EUnop (_, e1) => appl e1
adam@1612 492 | EBinop (_, _, e1, e2) => (appl e1; appl e2)
adam@1612 493 | ERecord xets => app (appl o #2) xets
adam@1612 494 | EField (e1, _) => appl e1
adam@1612 495 | ECase (e1, pes, _) => (appl e1; app (appl o #2) pes)
adam@1612 496 | EStrcat (e1, e2) => (appl e1; appl e2)
adam@1612 497 | EError (e1, _) => appl e1
adam@1612 498 | EReturnBlob {blob = e1, mimeType = e2, ...} => (appl e1; appl e2)
adam@1612 499 | ERedirect (e1, _) => appl e1
adam@1612 500 | EWrite e1 => appl e1
adam@1612 501 | ESeq (e1, e2) => (appl e1; appl e2)
adam@1612 502 | ELet (_, _, e1, e2) => (appl e1; appl e2)
adam@1612 503 | EClosure (_, es) => app appl es
adam@1612 504 | EQuery {query = e1, body = e2, initial = e3, ...} => (appl e1; appl e2; appl e3)
adam@1612 505 | EDml (e1, _) => appl e1
adam@1612 506 | ENextval e1 => appl e1
adam@1612 507 | ESetval (e1, e2) => (appl e1; appl e2)
adam@1612 508 | EUnurlify (e1, _, _) => appl e1
adam@1612 509 | EJavaScript (_, e1) => appl e1
adam@1612 510 | ESignalReturn e1 => appl e1
adam@1612 511 | ESignalBind (e1, e2) => (appl e1; appl e2)
adam@1612 512 | ESignalSource e1 => appl e1
adam@1612 513 | EServerCall (e1, _, _) => appl e1
adam@1612 514 | ERecv (e1, _) => appl e1
adam@1612 515 | ESleep e1 => appl e1
adam@1612 516 | ESpawn e1 => appl e1)
adam@1612 517 in
adam@1612 518 appl
adam@1612 519 end
adam@1612 520
adamc@26 521 end
adamc@26 522
adamc@26 523 structure Decl = struct
adamc@26 524
adamc@26 525 datatype binder = datatype Exp.binder
adamc@26 526
adamc@26 527 fun mapfoldB {typ = fc, exp = fe, decl = fd, bind} =
adamc@26 528 let
adamc@26 529 val mft = Typ.mapfold fc
adamc@26 530
adamc@26 531 val mfe = Exp.mapfoldB {typ = fc, exp = fe, bind = bind}
adamc@26 532
adamc@26 533 fun mfd ctx d acc =
adamc@26 534 S.bindP (mfd' ctx d acc, fd ctx)
adamc@26 535
adamc@26 536 and mfd' ctx (dAll as (d, loc)) =
adamc@26 537 case d of
adamc@808 538 DDatatype dts =>
adamc@808 539 S.map2 (ListUtil.mapfold (fn (x, n, xncs) =>
adamc@808 540 S.map2 (ListUtil.mapfold (fn (x, n, c) =>
adamc@808 541 case c of
adamc@808 542 NONE => S.return2 (x, n, c)
adamc@808 543 | SOME c =>
adamc@808 544 S.map2 (mft c,
adamc@808 545 fn c' => (x, n, SOME c'))) xncs,
adamc@808 546 fn xncs' => (x, n, xncs'))) dts,
adamc@808 547 fn dts' =>
adamc@808 548 (DDatatype dts', loc))
adamc@164 549 | DVal vi =>
adamc@126 550 S.map2 (mfvi ctx vi,
adamc@126 551 fn vi' =>
adamc@126 552 (DVal vi', loc))
adamc@126 553 | DValRec vis =>
adamc@196 554 let
adamc@196 555 val ctx' = foldl (fn ((x, n, t, _, s), ctx') => bind (ctx', NamedE (x, n, t, NONE, s))) ctx vis
adamc@196 556 in
adamc@196 557 S.map2 (ListUtil.mapfold (mfvi ctx') vis,
adamc@196 558 fn vis' =>
adamc@196 559 (DValRec vis', loc))
adamc@196 560 end
adamc@1104 561 | DExport (ek, s, n, ts, t, b) =>
adamc@609 562 S.bind2 (ListUtil.mapfold mft ts,
adamc@120 563 fn ts' =>
adamc@609 564 S.map2 (mft t,
adamc@609 565 fn t' =>
adamc@1104 566 (DExport (ek, s, n, ts', t', b), loc)))
adamc@707 567 | DTable (s, xts, pe, ce) =>
adamc@707 568 S.bind2 (mfe ctx pe,
adamc@707 569 fn pe' =>
adamc@707 570 S.map2 (mfe ctx ce,
adamc@707 571 fn ce' =>
adamc@707 572 (DTable (s, xts, pe', ce'), loc)))
adamc@338 573 | DSequence _ => S.return2 dAll
adamc@754 574 | DView (s, xts, e) =>
adamc@754 575 S.map2 (mfe ctx e,
adamc@754 576 fn e' =>
adamc@754 577 (DView (s, xts, e'), loc))
adamc@271 578 | DDatabase _ => S.return2 dAll
adamc@569 579 | DJavaScript _ => S.return2 dAll
adamc@725 580 | DCookie _ => S.return2 dAll
adamc@718 581 | DStyle _ => S.return2 dAll
adamc@1075 582 | DTask (e1, e2) =>
adamc@1075 583 S.bind2 (mfe ctx e1,
adamc@1075 584 fn e1' =>
adamc@1075 585 S.map2 (mfe ctx e2,
adamc@1075 586 fn e2' =>
adamc@1075 587 (DTask (e1', e2'), loc)))
adamc@1199 588 | DPolicy pol =>
adamc@1199 589 S.map2 (mfpol ctx pol,
adamc@1199 590 fn p' =>
adamc@1199 591 (DPolicy p', loc))
adam@1294 592 | DOnError _ => S.return2 dAll
adamc@1199 593
adamc@1199 594 and mfpol ctx pol =
adamc@1199 595 case pol of
adamc@1214 596 PolClient e =>
adamc@1199 597 S.map2 (mfe ctx e,
adamc@1214 598 PolClient)
adamc@1220 599 | PolInsert e =>
adamc@1220 600 S.map2 (mfe ctx e,
adamc@1220 601 PolInsert)
adamc@1221 602 | PolDelete e =>
adamc@1221 603 S.map2 (mfe ctx e,
adamc@1221 604 PolDelete)
adamc@1223 605 | PolUpdate e =>
adamc@1223 606 S.map2 (mfe ctx e,
adamc@1223 607 PolUpdate)
adamc@1229 608 | PolSequence e =>
adamc@1229 609 S.map2 (mfe ctx e,
adamc@1229 610 PolSequence)
adamc@126 611
adamc@126 612 and mfvi ctx (x, n, t, e, s) =
adamc@126 613 S.bind2 (mft t,
adamc@126 614 fn t' =>
adamc@126 615 S.map2 (mfe ctx e,
adamc@126 616 fn e' =>
adamc@126 617 (x, n, t', e', s)))
adamc@26 618 in
adamc@26 619 mfd
adamc@26 620 end
adamc@26 621
adamc@26 622 fun mapfold {typ = fc, exp = fe, decl = fd} =
adamc@26 623 mapfoldB {typ = fc,
adamc@26 624 exp = fn () => fe,
adamc@26 625 decl = fn () => fd,
adamc@26 626 bind = fn ((), _) => ()} ()
adamc@26 627
adamc@26 628 fun fold {typ, exp, decl} s d =
adamc@26 629 case mapfold {typ = fn c => fn s => S.Continue (c, typ (c, s)),
adamc@26 630 exp = fn e => fn s => S.Continue (e, exp (e, s)),
adamc@26 631 decl = fn d => fn s => S.Continue (d, decl (d, s))} d s of
adamc@26 632 S.Continue (_, s) => s
adamc@26 633 | S.Return _ => raise Fail "MonoUtil.Decl.fold: Impossible"
adamc@26 634
adamc@506 635 fun map {typ, exp, decl} e =
adamc@506 636 case mapfold {typ = fn c => fn () => S.Continue (typ c, ()),
adamc@506 637 exp = fn e => fn () => S.Continue (exp e, ()),
adamc@506 638 decl = fn d => fn () => S.Continue (decl d, ())} e () of
adamc@506 639 S.Return () => raise Fail "MonoUtil.Decl.map: Impossible"
adamc@506 640 | S.Continue (e, ()) => e
adamc@506 641
adamc@567 642 fun foldMapB {typ, exp, decl, bind} ctx s d =
adamc@567 643 case mapfoldB {typ = fn c => fn s => S.Continue (typ (c, s)),
adamc@567 644 exp = fn ctx => fn e => fn s => S.Continue (exp (ctx, e, s)),
adamc@567 645 decl = fn ctx => fn d => fn s => S.Continue (decl (ctx, d, s)),
adamc@567 646 bind = bind} ctx d s of
adamc@567 647 S.Continue v => v
adamc@567 648 | S.Return _ => raise Fail "MonoUtil.Decl.foldMapB: Impossible"
adamc@567 649
adamc@26 650 end
adamc@26 651
adamc@26 652 structure File = struct
adamc@26 653
adamc@26 654 datatype binder = datatype Exp.binder
adamc@26 655
adamc@26 656 fun mapfoldB (all as {bind, ...}) =
adamc@26 657 let
adamc@26 658 val mfd = Decl.mapfoldB all
adamc@26 659
adamc@26 660 fun mff ctx ds =
adamc@26 661 case ds of
adamc@26 662 nil => S.return2 nil
adamc@26 663 | d :: ds' =>
adamc@26 664 S.bind2 (mfd ctx d,
adamc@26 665 fn d' =>
adamc@26 666 let
adamc@100 667 val ctx' =
adamc@26 668 case #1 d' of
adamc@808 669 DDatatype dts =>
adamc@808 670 foldl (fn ((x, n, xncs), ctx) =>
adamc@808 671 let
adamc@808 672 val ctx = bind (ctx, Datatype (x, n, xncs))
adamc@808 673 val t = (TDatatype (n, ref (ElabUtil.classifyDatatype xncs, xncs)),
adamc@808 674 #2 d')
adamc@808 675 in
adamc@808 676 foldl (fn ((x, n, to), ctx) =>
adamc@808 677 let
adamc@808 678 val t = case to of
adamc@808 679 NONE => t
adamc@808 680 | SOME t' => (TFun (t', t), #2 d')
adamc@808 681 in
adamc@808 682 bind (ctx, NamedE (x, n, t, NONE, ""))
adamc@808 683 end)
adamc@808 684 ctx xncs
adamc@808 685 end) ctx dts
adamc@164 686 | DVal (x, n, t, e, s) => bind (ctx, NamedE (x, n, t, SOME e, s))
adamc@126 687 | DValRec vis => foldl (fn ((x, n, t, e, s), ctx) =>
adamc@196 688 bind (ctx, NamedE (x, n, t, NONE, s))) ctx vis
adamc@109 689 | DExport _ => ctx
adamc@273 690 | DTable _ => ctx
adamc@338 691 | DSequence _ => ctx
adamc@754 692 | DView _ => ctx
adamc@271 693 | DDatabase _ => ctx
adamc@569 694 | DJavaScript _ => ctx
adamc@725 695 | DCookie _ => ctx
adamc@718 696 | DStyle _ => ctx
adamc@1075 697 | DTask _ => ctx
adamc@1199 698 | DPolicy _ => ctx
adam@1294 699 | DOnError _ => ctx
adamc@26 700 in
adamc@26 701 S.map2 (mff ctx' ds',
adamc@26 702 fn ds' =>
adamc@26 703 d' :: ds')
adamc@26 704 end)
adamc@26 705 in
adamc@26 706 mff
adamc@26 707 end
adamc@26 708
adamc@26 709 fun mapfold {typ = fc, exp = fe, decl = fd} =
adamc@26 710 mapfoldB {typ = fc,
adamc@26 711 exp = fn () => fe,
adamc@26 712 decl = fn () => fd,
adamc@26 713 bind = fn ((), _) => ()} ()
adamc@26 714
adamc@26 715 fun mapB {typ, exp, decl, bind} ctx ds =
adamc@26 716 case mapfoldB {typ = fn c => fn () => S.Continue (typ c, ()),
adamc@26 717 exp = fn ctx => fn e => fn () => S.Continue (exp ctx e, ()),
adamc@26 718 decl = fn ctx => fn d => fn () => S.Continue (decl ctx d, ()),
adamc@26 719 bind = bind} ctx ds () of
adamc@26 720 S.Continue (ds, ()) => ds
adamc@26 721 | S.Return _ => raise Fail "MonoUtil.File.mapB: Impossible"
adamc@26 722
adamc@96 723 fun map {typ, exp, decl} e =
adamc@96 724 case mapfold {typ = fn c => fn () => S.Continue (typ c, ()),
adamc@96 725 exp = fn e => fn () => S.Continue (exp e, ()),
adamc@96 726 decl = fn d => fn () => S.Continue (decl d, ())} e () of
adamc@506 727 S.Return () => raise Fail "MonoUtil.File.map: Impossible"
adamc@96 728 | S.Continue (e, ()) => e
adamc@96 729
adamc@26 730 fun fold {typ, exp, decl} s d =
adamc@26 731 case mapfold {typ = fn c => fn s => S.Continue (c, typ (c, s)),
adamc@26 732 exp = fn e => fn s => S.Continue (e, exp (e, s)),
adamc@26 733 decl = fn d => fn s => S.Continue (d, decl (d, s))} d s of
adamc@26 734 S.Continue (_, s) => s
adamc@26 735 | S.Return _ => raise Fail "MonoUtil.File.fold: Impossible"
adamc@26 736
adamc@506 737 val maxName = foldl (fn ((d, _) : decl, count) =>
adamc@506 738 case d of
adamc@808 739 DDatatype dts =>
adamc@808 740 foldl (fn ((_, n, ns), count) =>
adamc@808 741 foldl (fn ((_, n', _), m) => Int.max (n', m))
adamc@808 742 (Int.max (n, count)) ns) count dts
adamc@506 743 | DVal (_, n, _, _, _) => Int.max (n, count)
adamc@506 744 | DValRec vis => foldl (fn ((_, n, _, _, _), count) => Int.max (n, count)) count vis
adamc@506 745 | DExport _ => count
adamc@506 746 | DTable _ => count
adamc@506 747 | DSequence _ => count
adamc@754 748 | DView _ => count
adamc@569 749 | DDatabase _ => count
adamc@718 750 | DJavaScript _ => count
adamc@725 751 | DCookie _ => count
adamc@1073 752 | DStyle _ => count
adamc@1199 753 | DTask _ => count
adam@1294 754 | DPolicy _ => count
adam@1294 755 | DOnError _ => count) 0
adamc@506 756
adam@1612 757 fun appLoc f =
adam@1612 758 let
adam@1612 759 val eal = Exp.appLoc f
adam@1612 760
adam@1612 761 fun appl (d : decl) =
adam@1612 762 case #1 d of
adam@1612 763 DDatatype _ => ()
adam@1612 764 | DVal (_, _, _, e1, _) => eal e1
adam@1612 765 | DValRec vis => app (eal o #4) vis
adam@1612 766 | DExport _ => ()
adam@1612 767 | DTable (_, _, e1, e2) => (eal e1; eal e2)
adam@1612 768 | DSequence _ => ()
adam@1612 769 | DView (_, _, e1) => eal e1
adam@1612 770 | DDatabase _ => ()
adam@1612 771 | DJavaScript _ => ()
adam@1612 772 | DCookie _ => ()
adam@1612 773 | DStyle _ => ()
adam@1612 774 | DTask (e1, e2) => (eal e1; eal e2)
adam@1612 775 | DPolicy pol => applPolicy pol
adam@1612 776 | DOnError _ => ()
adam@1612 777
adam@1612 778 and applPolicy p =
adam@1612 779 case p of
adam@1612 780 PolClient e1 => eal e1
adam@1612 781 | PolInsert e1 => eal e1
adam@1612 782 | PolDelete e1 => eal e1
adam@1612 783 | PolUpdate e1 => eal e1
adam@1612 784 | PolSequence e1 => eal e1
adam@1612 785 in
adam@1612 786 app appl
adam@1612 787 end
adam@1612 788
adamc@26 789 end
adamc@26 790
adamc@26 791 end