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annotate src/mono_util.sml @ 931:be6585b4058b

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Have nullable columns working with Dbgrid
author Adam Chlipala <adamc@hcoop.net>
date Sun, 13 Sep 2009 12:00:34 -0400
parents cc956020801b
children dfe34fad749d
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
adamc@109 83 and sortFields xts = ListMergeSort.sort (fn (x, y) => compareFields (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
adamc@26 159 and mfe' ctx (eAll as (e, loc)) =
adamc@26 160 case e of
adamc@26 161 EPrim _ => S.return2 eAll
adamc@26 162 | ERel _ => S.return2 eAll
adamc@26 163 | ENamed _ => S.return2 eAll
adamc@188 164 | ECon (_, _, NONE) => S.return2 eAll
adamc@188 165 | ECon (dk, n, SOME e) =>
adamc@178 166 S.map2 (mfe ctx e,
adamc@178 167 fn e' =>
adamc@188 168 (ECon (dk, n, SOME e'), loc))
adamc@297 169 | ENone t =>
adamc@297 170 S.map2 (mft t,
adamc@297 171 fn t' =>
adamc@297 172 (ENone t', loc))
adamc@290 173 | ESome (t, e) =>
adamc@290 174 S.bind2 (mft t,
adamc@290 175 fn t' =>
adamc@290 176 S.map2 (mfe ctx e,
adamc@290 177 fn e' =>
adamc@290 178 (ESome (t', e'), loc)))
adamc@51 179 | EFfi _ => S.return2 eAll
adamc@51 180 | EFfiApp (m, x, es) =>
adamc@51 181 S.map2 (ListUtil.mapfold (fn e => mfe ctx e) es,
adamc@51 182 fn es' =>
adamc@51 183 (EFfiApp (m, x, es'), loc))
adamc@26 184 | EApp (e1, e2) =>
adamc@26 185 S.bind2 (mfe ctx e1,
adamc@26 186 fn e1' =>
adamc@26 187 S.map2 (mfe ctx e2,
adamc@26 188 fn e2' =>
adamc@26 189 (EApp (e1', e2'), loc)))
adamc@26 190 | EAbs (x, dom, ran, e) =>
adamc@26 191 S.bind2 (mft dom,
adamc@26 192 fn dom' =>
adamc@26 193 S.bind2 (mft ran,
adamc@26 194 fn ran' =>
adamc@26 195 S.map2 (mfe (bind (ctx, RelE (x, dom'))) e,
adamc@26 196 fn e' =>
adamc@26 197 (EAbs (x, dom', ran', e'), loc))))
adamc@26 198
adamc@387 199 | EUnop (s, e) =>
adamc@387 200 S.map2 (mfe ctx e,
adamc@387 201 fn e' =>
adamc@387 202 (EUnop (s, e'), loc))
adamc@387 203 | EBinop (s, e1, e2) =>
adamc@387 204 S.bind2 (mfe ctx e1,
adamc@387 205 fn e1' =>
adamc@387 206 S.map2 (mfe ctx e2,
adamc@387 207 fn e2' =>
adamc@387 208 (EBinop (s, e1', e2'), loc)))
adamc@387 209
adamc@26 210 | ERecord xes =>
adamc@29 211 S.map2 (ListUtil.mapfold (fn (x, e, t) =>
adamc@29 212 S.bind2 (mfe ctx e,
adamc@26 213 fn e' =>
adamc@29 214 S.map2 (mft t,
adamc@29 215 fn t' =>
adamc@29 216 (x, e', t'))))
adamc@26 217 xes,
adamc@26 218 fn xes' =>
adamc@26 219 (ERecord xes', loc))
adamc@26 220 | EField (e, x) =>
adamc@26 221 S.map2 (mfe ctx e,
adamc@26 222 fn e' =>
adamc@26 223 (EField (e', x), loc))
adamc@94 224
adamc@182 225 | ECase (e, pes, {disc, result}) =>
adamc@178 226 S.bind2 (mfe ctx e,
adamc@178 227 fn e' =>
adamc@178 228 S.bind2 (ListUtil.mapfold (fn (p, e) =>
adamc@179 229 let
adamc@179 230 fun pb ((p, _), ctx) =
adamc@179 231 case p of
adamc@179 232 PWild => ctx
adamc@182 233 | PVar (x, t) => bind (ctx, RelE (x, t))
adamc@179 234 | PPrim _ => ctx
adamc@188 235 | PCon (_, _, NONE) => ctx
adamc@188 236 | PCon (_, _, SOME p) => pb (p, ctx)
adamc@182 237 | PRecord xps => foldl (fn ((_, p, _), ctx) =>
adamc@179 238 pb (p, ctx)) ctx xps
adamc@288 239 | PNone _ => ctx
adamc@288 240 | PSome (_, p) => pb (p, ctx)
adamc@179 241 in
adamc@179 242 S.map2 (mfe (pb (p, ctx)) e,
adamc@179 243 fn e' => (p, e'))
adamc@179 244 end) pes,
adamc@178 245 fn pes' =>
adamc@182 246 S.bind2 (mft disc,
adamc@182 247 fn disc' =>
adamc@182 248 S.map2 (mft result,
adamc@182 249 fn result' =>
adamc@182 250 (ECase (e', pes', {disc = disc', result = result'}), loc)))))
adamc@178 251
adamc@283 252 | EError (e, t) =>
adamc@283 253 S.bind2 (mfe ctx e,
adamc@283 254 fn e' =>
adamc@283 255 S.map2 (mft t,
adamc@283 256 fn t' =>
adamc@283 257 (EError (e', t'), loc)))
adamc@741 258 | EReturnBlob {blob, mimeType, t} =>
adamc@741 259 S.bind2 (mfe ctx blob,
adamc@741 260 fn blob' =>
adamc@741 261 S.bind2 (mfe ctx mimeType,
adamc@741 262 fn mimeType' =>
adamc@741 263 S.map2 (mft t,
adamc@741 264 fn t' =>
adamc@741 265 (EReturnBlob {blob = blob', mimeType = mimeType', t = t'}, loc))))
adamc@741 266
adamc@94 267 | EStrcat (e1, e2) =>
adamc@94 268 S.bind2 (mfe ctx e1,
adamc@94 269 fn e1' =>
adamc@94 270 S.map2 (mfe ctx e2,
adamc@94 271 fn e2' =>
adamc@94 272 (EStrcat (e1', e2'), loc)))
adamc@102 273
adamc@102 274 | EWrite e =>
adamc@102 275 S.map2 (mfe ctx e,
adamc@102 276 fn e' =>
adamc@102 277 (EWrite e', loc))
adamc@106 278
adamc@106 279 | ESeq (e1, e2) =>
adamc@106 280 S.bind2 (mfe ctx e1,
adamc@106 281 fn e1' =>
adamc@106 282 S.map2 (mfe ctx e2,
adamc@106 283 fn e2' =>
adamc@106 284 (ESeq (e1', e2'), loc)))
adamc@251 285 | ELet (x, t, e1, e2) =>
adamc@251 286 S.bind2 (mft t,
adamc@251 287 fn t' =>
adamc@251 288 S.bind2 (mfe ctx e1,
adamc@251 289 fn e1' =>
adamc@252 290 S.map2 (mfe (bind (ctx, RelE (x, t'))) e2,
adamc@251 291 fn e2' =>
adamc@251 292 (ELet (x, t', e1', e2'), loc))))
adamc@111 293
adamc@111 294 | EClosure (n, es) =>
adamc@111 295 S.map2 (ListUtil.mapfold (mfe ctx) es,
adamc@111 296 fn es' =>
adamc@111 297 (EClosure (n, es'), loc))
adamc@252 298
adamc@252 299 | EQuery {exps, tables, state, query, body, initial} =>
adamc@252 300 S.bind2 (ListUtil.mapfold (fn (x, t) =>
adamc@252 301 S.map2 (mft t,
adamc@252 302 fn t' => (x, t'))) exps,
adamc@252 303 fn exps' =>
adamc@252 304 S.bind2 (ListUtil.mapfold (fn (x, xts) =>
adamc@252 305 S.map2 (ListUtil.mapfold
adamc@252 306 (fn (x, t) =>
adamc@252 307 S.map2 (mft t,
adamc@252 308 fn t' => (x, t'))) xts,
adamc@252 309 fn xts' => (x, xts'))) tables,
adamc@252 310 fn tables' =>
adamc@252 311 S.bind2 (mft state,
adamc@252 312 fn state' =>
adamc@252 313 S.bind2 (mfe ctx query,
adamc@252 314 fn query' =>
adamc@267 315 S.bind2 (mfe (bind (bind (ctx, RelE ("r", dummyt)),
adamc@267 316 RelE ("acc", dummyt)))
adamc@267 317 body,
adamc@267 318 fn body' =>
adamc@267 319 S.map2 (mfe ctx initial,
adamc@267 320 fn initial' =>
adamc@267 321 (EQuery {exps = exps',
adamc@267 322 tables = tables',
adamc@267 323 state = state',
adamc@267 324 query = query',
adamc@267 325 body = body',
adamc@267 326 initial = initial'},
adamc@267 327 loc)))))))
adamc@307 328
adamc@307 329 | EDml e =>
adamc@307 330 S.map2 (mfe ctx e,
adamc@307 331 fn e' =>
adamc@307 332 (EDml e', loc))
adamc@338 333 | ENextval e =>
adamc@338 334 S.map2 (mfe ctx e,
adamc@338 335 fn e' =>
adamc@338 336 (ENextval e', loc))
adamc@463 337 | EUnurlify (e, t) =>
adamc@463 338 S.bind2 (mfe ctx e,
adamc@463 339 fn e' =>
adamc@463 340 S.map2 (mft t,
adamc@463 341 fn t' =>
adamc@463 342 (EUnurlify (e', t'), loc)))
adamc@815 343 | EJavaScript (m, e) =>
adamc@729 344 S.bind2 (mfmode ctx m,
adamc@729 345 fn m' =>
adamc@729 346 S.map2 (mfe ctx e,
adamc@729 347 fn e' =>
adamc@815 348 (EJavaScript (m', e'), loc)))
adamc@569 349
adamc@568 350 | ESignalReturn e =>
adamc@568 351 S.map2 (mfe ctx e,
adamc@568 352 fn e' =>
adamc@568 353 (ESignalReturn e', loc))
adamc@572 354 | ESignalBind (e1, e2) =>
adamc@572 355 S.bind2 (mfe ctx e1,
adamc@572 356 fn e1' =>
adamc@572 357 S.map2 (mfe ctx e2,
adamc@572 358 fn e2' =>
adamc@572 359 (ESignalBind (e1', e2'), loc)))
adamc@574 360 | ESignalSource e =>
adamc@574 361 S.map2 (mfe ctx e,
adamc@574 362 fn e' =>
adamc@574 363 (ESignalSource e', loc))
adamc@608 364
adamc@910 365 | EServerCall (s, ek, t, eff) =>
adamc@642 366 S.bind2 (mfe ctx s,
adamc@642 367 fn s' =>
adamc@642 368 S.bind2 (mfe ctx ek,
adamc@642 369 fn ek' =>
adamc@910 370 S.map2 (mft t,
adamc@642 371 fn t' =>
adamc@910 372 (EServerCall (s', ek', t', eff), loc))))
adamc@670 373 | ERecv (s, ek, t) =>
adamc@670 374 S.bind2 (mfe ctx s,
adamc@695 375 fn s' =>
adamc@695 376 S.bind2 (mfe ctx ek,
adamc@695 377 fn ek' =>
adamc@695 378 S.map2 (mft t,
adamc@695 379 fn t' =>
adamc@695 380 (ERecv (s', ek', t'), loc))))
adamc@695 381 | ESleep (s, ek) =>
adamc@695 382 S.bind2 (mfe ctx s,
adamc@695 383 fn s' =>
adamc@695 384 S.map2 (mfe ctx ek,
adamc@695 385 fn ek' =>
adamc@695 386 (ESleep (s', ek'), loc)))
adamc@729 387
adamc@729 388 and mfmode ctx mode =
adamc@729 389 case mode of
adamc@729 390 Attribute => S.return2 mode
adamc@729 391 | Script => S.return2 mode
adamc@729 392 | Source t =>
adamc@729 393 S.map2 (mft t,
adamc@729 394 fn t' => Source t')
adamc@26 395 in
adamc@26 396 mfe
adamc@26 397 end
adamc@26 398
adamc@26 399 fun mapfold {typ = fc, exp = fe} =
adamc@26 400 mapfoldB {typ = fc,
adamc@26 401 exp = fn () => fe,
adamc@26 402 bind = fn ((), _) => ()} ()
adamc@26 403
adamc@26 404 fun mapB {typ, exp, bind} ctx e =
adamc@26 405 case mapfoldB {typ = fn c => fn () => S.Continue (typ c, ()),
adamc@26 406 exp = fn ctx => fn e => fn () => S.Continue (exp ctx e, ()),
adamc@26 407 bind = bind} ctx e () of
adamc@26 408 S.Continue (e, ()) => e
adamc@26 409 | S.Return _ => raise Fail "MonoUtil.Exp.mapB: Impossible"
adamc@26 410
adamc@26 411 fun map {typ, exp} e =
adamc@26 412 case mapfold {typ = fn c => fn () => S.Continue (typ c, ()),
adamc@26 413 exp = fn e => fn () => S.Continue (exp e, ())} e () of
adamc@26 414 S.Return () => raise Fail "Mono_util.Exp.map"
adamc@26 415 | S.Continue (e, ()) => e
adamc@26 416
adamc@26 417 fun fold {typ, exp} s e =
adamc@26 418 case mapfold {typ = fn c => fn s => S.Continue (c, typ (c, s)),
adamc@26 419 exp = fn e => fn s => S.Continue (e, exp (e, s))} e s of
adamc@26 420 S.Continue (_, s) => s
adamc@26 421 | S.Return _ => raise Fail "MonoUtil.Exp.fold: Impossible"
adamc@26 422
adamc@26 423 fun exists {typ, exp} k =
adamc@26 424 case mapfold {typ = fn c => fn () =>
adamc@26 425 if typ c then
adamc@26 426 S.Return ()
adamc@26 427 else
adamc@26 428 S.Continue (c, ()),
adamc@26 429 exp = fn e => fn () =>
adamc@26 430 if exp e then
adamc@26 431 S.Return ()
adamc@26 432 else
adamc@26 433 S.Continue (e, ())} k () of
adamc@26 434 S.Return _ => true
adamc@26 435 | S.Continue _ => false
adamc@26 436
adamc@919 437 fun existsB {typ, exp, bind} ctx e =
adamc@919 438 case mapfoldB {typ = fn t => fn () =>
adamc@919 439 if typ t then
adamc@919 440 S.Return ()
adamc@919 441 else
adamc@919 442 S.Continue (t, ()),
adamc@919 443 exp = fn ctx => fn e => fn () =>
adamc@919 444 if exp (ctx, e) then
adamc@919 445 S.Return ()
adamc@919 446 else
adamc@919 447 S.Continue (e, ()),
adamc@919 448 bind = bind} ctx e () of
adamc@919 449 S.Return _ => true
adamc@919 450 | S.Continue _ => false
adamc@919 451
adamc@567 452 fun foldB {typ, exp, bind} ctx s e =
adamc@567 453 case mapfoldB {typ = fn t => fn s => S.Continue (t, typ (t, s)),
adamc@567 454 exp = fn ctx => fn e => fn s => S.Continue (e, exp (ctx, e, s)),
adamc@567 455 bind = bind} ctx e s of
adamc@567 456 S.Continue (_, s) => s
adamc@567 457 | S.Return _ => raise Fail "MonoUtil.Exp.foldB: Impossible"
adamc@567 458
adamc@26 459 end
adamc@26 460
adamc@26 461 structure Decl = struct
adamc@26 462
adamc@26 463 datatype binder = datatype Exp.binder
adamc@26 464
adamc@26 465 fun mapfoldB {typ = fc, exp = fe, decl = fd, bind} =
adamc@26 466 let
adamc@26 467 val mft = Typ.mapfold fc
adamc@26 468
adamc@26 469 val mfe = Exp.mapfoldB {typ = fc, exp = fe, bind = bind}
adamc@26 470
adamc@26 471 fun mfd ctx d acc =
adamc@26 472 S.bindP (mfd' ctx d acc, fd ctx)
adamc@26 473
adamc@26 474 and mfd' ctx (dAll as (d, loc)) =
adamc@26 475 case d of
adamc@808 476 DDatatype dts =>
adamc@808 477 S.map2 (ListUtil.mapfold (fn (x, n, xncs) =>
adamc@808 478 S.map2 (ListUtil.mapfold (fn (x, n, c) =>
adamc@808 479 case c of
adamc@808 480 NONE => S.return2 (x, n, c)
adamc@808 481 | SOME c =>
adamc@808 482 S.map2 (mft c,
adamc@808 483 fn c' => (x, n, SOME c'))) xncs,
adamc@808 484 fn xncs' => (x, n, xncs'))) dts,
adamc@808 485 fn dts' =>
adamc@808 486 (DDatatype dts', loc))
adamc@164 487 | DVal vi =>
adamc@126 488 S.map2 (mfvi ctx vi,
adamc@126 489 fn vi' =>
adamc@126 490 (DVal vi', loc))
adamc@126 491 | DValRec vis =>
adamc@196 492 let
adamc@196 493 val ctx' = foldl (fn ((x, n, t, _, s), ctx') => bind (ctx', NamedE (x, n, t, NONE, s))) ctx vis
adamc@196 494 in
adamc@196 495 S.map2 (ListUtil.mapfold (mfvi ctx') vis,
adamc@196 496 fn vis' =>
adamc@196 497 (DValRec vis', loc))
adamc@196 498 end
adamc@609 499 | DExport (ek, s, n, ts, t) =>
adamc@609 500 S.bind2 (ListUtil.mapfold mft ts,
adamc@120 501 fn ts' =>
adamc@609 502 S.map2 (mft t,
adamc@609 503 fn t' =>
adamc@609 504 (DExport (ek, s, n, ts', t'), loc)))
adamc@707 505 | DTable (s, xts, pe, ce) =>
adamc@707 506 S.bind2 (mfe ctx pe,
adamc@707 507 fn pe' =>
adamc@707 508 S.map2 (mfe ctx ce,
adamc@707 509 fn ce' =>
adamc@707 510 (DTable (s, xts, pe', ce'), loc)))
adamc@338 511 | DSequence _ => S.return2 dAll
adamc@754 512 | DView (s, xts, e) =>
adamc@754 513 S.map2 (mfe ctx e,
adamc@754 514 fn e' =>
adamc@754 515 (DView (s, xts, e'), loc))
adamc@271 516 | DDatabase _ => S.return2 dAll
adamc@569 517 | DJavaScript _ => S.return2 dAll
adamc@725 518 | DCookie _ => S.return2 dAll
adamc@718 519 | DStyle _ => S.return2 dAll
adamc@126 520
adamc@126 521 and mfvi ctx (x, n, t, e, s) =
adamc@126 522 S.bind2 (mft t,
adamc@126 523 fn t' =>
adamc@126 524 S.map2 (mfe ctx e,
adamc@126 525 fn e' =>
adamc@126 526 (x, n, t', e', s)))
adamc@26 527 in
adamc@26 528 mfd
adamc@26 529 end
adamc@26 530
adamc@26 531 fun mapfold {typ = fc, exp = fe, decl = fd} =
adamc@26 532 mapfoldB {typ = fc,
adamc@26 533 exp = fn () => fe,
adamc@26 534 decl = fn () => fd,
adamc@26 535 bind = fn ((), _) => ()} ()
adamc@26 536
adamc@26 537 fun fold {typ, exp, decl} s d =
adamc@26 538 case mapfold {typ = fn c => fn s => S.Continue (c, typ (c, s)),
adamc@26 539 exp = fn e => fn s => S.Continue (e, exp (e, s)),
adamc@26 540 decl = fn d => fn s => S.Continue (d, decl (d, s))} d s of
adamc@26 541 S.Continue (_, s) => s
adamc@26 542 | S.Return _ => raise Fail "MonoUtil.Decl.fold: Impossible"
adamc@26 543
adamc@506 544 fun map {typ, exp, decl} e =
adamc@506 545 case mapfold {typ = fn c => fn () => S.Continue (typ c, ()),
adamc@506 546 exp = fn e => fn () => S.Continue (exp e, ()),
adamc@506 547 decl = fn d => fn () => S.Continue (decl d, ())} e () of
adamc@506 548 S.Return () => raise Fail "MonoUtil.Decl.map: Impossible"
adamc@506 549 | S.Continue (e, ()) => e
adamc@506 550
adamc@567 551 fun foldMapB {typ, exp, decl, bind} ctx s d =
adamc@567 552 case mapfoldB {typ = fn c => fn s => S.Continue (typ (c, s)),
adamc@567 553 exp = fn ctx => fn e => fn s => S.Continue (exp (ctx, e, s)),
adamc@567 554 decl = fn ctx => fn d => fn s => S.Continue (decl (ctx, d, s)),
adamc@567 555 bind = bind} ctx d s of
adamc@567 556 S.Continue v => v
adamc@567 557 | S.Return _ => raise Fail "MonoUtil.Decl.foldMapB: Impossible"
adamc@567 558
adamc@26 559 end
adamc@26 560
adamc@26 561 structure File = struct
adamc@26 562
adamc@26 563 datatype binder = datatype Exp.binder
adamc@26 564
adamc@26 565 fun mapfoldB (all as {bind, ...}) =
adamc@26 566 let
adamc@26 567 val mfd = Decl.mapfoldB all
adamc@26 568
adamc@26 569 fun mff ctx ds =
adamc@26 570 case ds of
adamc@26 571 nil => S.return2 nil
adamc@26 572 | d :: ds' =>
adamc@26 573 S.bind2 (mfd ctx d,
adamc@26 574 fn d' =>
adamc@26 575 let
adamc@100 576 val ctx' =
adamc@26 577 case #1 d' of
adamc@808 578 DDatatype dts =>
adamc@808 579 foldl (fn ((x, n, xncs), ctx) =>
adamc@808 580 let
adamc@808 581 val ctx = bind (ctx, Datatype (x, n, xncs))
adamc@808 582 val t = (TDatatype (n, ref (ElabUtil.classifyDatatype xncs, xncs)),
adamc@808 583 #2 d')
adamc@808 584 in
adamc@808 585 foldl (fn ((x, n, to), ctx) =>
adamc@808 586 let
adamc@808 587 val t = case to of
adamc@808 588 NONE => t
adamc@808 589 | SOME t' => (TFun (t', t), #2 d')
adamc@808 590 in
adamc@808 591 bind (ctx, NamedE (x, n, t, NONE, ""))
adamc@808 592 end)
adamc@808 593 ctx xncs
adamc@808 594 end) ctx dts
adamc@164 595 | DVal (x, n, t, e, s) => bind (ctx, NamedE (x, n, t, SOME e, s))
adamc@126 596 | DValRec vis => foldl (fn ((x, n, t, e, s), ctx) =>
adamc@196 597 bind (ctx, NamedE (x, n, t, NONE, s))) ctx vis
adamc@109 598 | DExport _ => ctx
adamc@273 599 | DTable _ => ctx
adamc@338 600 | DSequence _ => ctx
adamc@754 601 | DView _ => ctx
adamc@271 602 | DDatabase _ => ctx
adamc@569 603 | DJavaScript _ => ctx
adamc@725 604 | DCookie _ => ctx
adamc@718 605 | DStyle _ => ctx
adamc@26 606 in
adamc@26 607 S.map2 (mff ctx' ds',
adamc@26 608 fn ds' =>
adamc@26 609 d' :: ds')
adamc@26 610 end)
adamc@26 611 in
adamc@26 612 mff
adamc@26 613 end
adamc@26 614
adamc@26 615 fun mapfold {typ = fc, exp = fe, decl = fd} =
adamc@26 616 mapfoldB {typ = fc,
adamc@26 617 exp = fn () => fe,
adamc@26 618 decl = fn () => fd,
adamc@26 619 bind = fn ((), _) => ()} ()
adamc@26 620
adamc@26 621 fun mapB {typ, exp, decl, bind} ctx ds =
adamc@26 622 case mapfoldB {typ = fn c => fn () => S.Continue (typ c, ()),
adamc@26 623 exp = fn ctx => fn e => fn () => S.Continue (exp ctx e, ()),
adamc@26 624 decl = fn ctx => fn d => fn () => S.Continue (decl ctx d, ()),
adamc@26 625 bind = bind} ctx ds () of
adamc@26 626 S.Continue (ds, ()) => ds
adamc@26 627 | S.Return _ => raise Fail "MonoUtil.File.mapB: Impossible"
adamc@26 628
adamc@96 629 fun map {typ, exp, decl} e =
adamc@96 630 case mapfold {typ = fn c => fn () => S.Continue (typ c, ()),
adamc@96 631 exp = fn e => fn () => S.Continue (exp e, ()),
adamc@96 632 decl = fn d => fn () => S.Continue (decl d, ())} e () of
adamc@506 633 S.Return () => raise Fail "MonoUtil.File.map: Impossible"
adamc@96 634 | S.Continue (e, ()) => e
adamc@96 635
adamc@26 636 fun fold {typ, exp, decl} s d =
adamc@26 637 case mapfold {typ = fn c => fn s => S.Continue (c, typ (c, s)),
adamc@26 638 exp = fn e => fn s => S.Continue (e, exp (e, s)),
adamc@26 639 decl = fn d => fn s => S.Continue (d, decl (d, s))} d s of
adamc@26 640 S.Continue (_, s) => s
adamc@26 641 | S.Return _ => raise Fail "MonoUtil.File.fold: Impossible"
adamc@26 642
adamc@506 643 val maxName = foldl (fn ((d, _) : decl, count) =>
adamc@506 644 case d of
adamc@808 645 DDatatype dts =>
adamc@808 646 foldl (fn ((_, n, ns), count) =>
adamc@808 647 foldl (fn ((_, n', _), m) => Int.max (n', m))
adamc@808 648 (Int.max (n, count)) ns) count dts
adamc@506 649 | DVal (_, n, _, _, _) => Int.max (n, count)
adamc@506 650 | DValRec vis => foldl (fn ((_, n, _, _, _), count) => Int.max (n, count)) count vis
adamc@506 651 | DExport _ => count
adamc@506 652 | DTable _ => count
adamc@506 653 | DSequence _ => count
adamc@754 654 | DView _ => count
adamc@569 655 | DDatabase _ => count
adamc@718 656 | DJavaScript _ => count
adamc@725 657 | DCookie _ => count
adamc@718 658 | DStyle _ => count) 0
adamc@506 659
adamc@26 660 end
adamc@26 661
adamc@26 662 end