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annotate src/mono_util.sml @ 2186:d87d72b6e299

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Remove spurious failure about reopening database connection
author Adam Chlipala <adam@chlipala.net>
date Sat, 31 Oct 2015 19:21:05 -0400
parents 98895243b5b6
children f7113855f3b7
rev   line source
adam@1847 1 (* Copyright (c) 2008, 2013, 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)))
adam@1932 264 | EReturnBlob {blob = NONE, mimeType, t} =>
adam@1932 265 S.bind2 (mfe ctx mimeType,
adam@1932 266 fn mimeType' =>
adam@1932 267 S.map2 (mft t,
adam@1932 268 fn t' =>
adam@1932 269 (EReturnBlob {blob = NONE, mimeType = mimeType', t = t'}, loc)))
adam@1932 270 | EReturnBlob {blob = SOME blob, mimeType, t} =>
adamc@741 271 S.bind2 (mfe ctx blob,
adamc@741 272 fn blob' =>
adamc@741 273 S.bind2 (mfe ctx mimeType,
adamc@741 274 fn mimeType' =>
adamc@741 275 S.map2 (mft t,
adamc@741 276 fn t' =>
adam@1932 277 (EReturnBlob {blob = SOME blob', mimeType = mimeType', t = t'}, loc))))
adamc@1065 278 | ERedirect (e, t) =>
adamc@1065 279 S.bind2 (mfe ctx e,
adamc@1065 280 fn e' =>
adamc@1065 281 S.map2 (mft t,
adamc@1065 282 fn t' =>
adamc@1065 283 (ERedirect (e', t'), loc)))
adamc@741 284
adamc@94 285 | EStrcat (e1, e2) =>
adamc@94 286 S.bind2 (mfe ctx e1,
adamc@94 287 fn e1' =>
adamc@94 288 S.map2 (mfe ctx e2,
adamc@94 289 fn e2' =>
adamc@94 290 (EStrcat (e1', e2'), loc)))
adamc@102 291
adamc@102 292 | EWrite e =>
adamc@102 293 S.map2 (mfe ctx e,
adamc@102 294 fn e' =>
adamc@102 295 (EWrite e', loc))
adamc@106 296
adamc@106 297 | ESeq (e1, e2) =>
adamc@106 298 S.bind2 (mfe ctx e1,
adamc@106 299 fn e1' =>
adamc@106 300 S.map2 (mfe ctx e2,
adamc@106 301 fn e2' =>
adamc@106 302 (ESeq (e1', e2'), loc)))
adamc@251 303 | ELet (x, t, e1, e2) =>
adamc@251 304 S.bind2 (mft t,
adamc@251 305 fn t' =>
adamc@251 306 S.bind2 (mfe ctx e1,
adamc@251 307 fn e1' =>
adamc@252 308 S.map2 (mfe (bind (ctx, RelE (x, t'))) e2,
adamc@251 309 fn e2' =>
adamc@251 310 (ELet (x, t', e1', e2'), loc))))
adamc@111 311
adamc@111 312 | EClosure (n, es) =>
adamc@111 313 S.map2 (ListUtil.mapfold (mfe ctx) es,
adamc@111 314 fn es' =>
adamc@111 315 (EClosure (n, es'), loc))
adamc@252 316
adamc@252 317 | EQuery {exps, tables, state, query, body, initial} =>
adamc@252 318 S.bind2 (ListUtil.mapfold (fn (x, t) =>
adamc@252 319 S.map2 (mft t,
adamc@252 320 fn t' => (x, t'))) exps,
adamc@252 321 fn exps' =>
adamc@252 322 S.bind2 (ListUtil.mapfold (fn (x, xts) =>
adamc@252 323 S.map2 (ListUtil.mapfold
adamc@252 324 (fn (x, t) =>
adamc@252 325 S.map2 (mft t,
adamc@252 326 fn t' => (x, t'))) xts,
adamc@252 327 fn xts' => (x, xts'))) tables,
adamc@252 328 fn tables' =>
adamc@252 329 S.bind2 (mft state,
adamc@252 330 fn state' =>
adamc@252 331 S.bind2 (mfe ctx query,
adamc@252 332 fn query' =>
adamc@267 333 S.bind2 (mfe (bind (bind (ctx, RelE ("r", dummyt)),
adamc@267 334 RelE ("acc", dummyt)))
adamc@267 335 body,
adamc@267 336 fn body' =>
adamc@267 337 S.map2 (mfe ctx initial,
adamc@267 338 fn initial' =>
adamc@267 339 (EQuery {exps = exps',
adamc@267 340 tables = tables',
adamc@267 341 state = state',
adamc@267 342 query = query',
adamc@267 343 body = body',
adamc@267 344 initial = initial'},
adamc@267 345 loc)))))))
adamc@307 346
adam@1293 347 | EDml (e, fm) =>
adamc@307 348 S.map2 (mfe ctx e,
adamc@307 349 fn e' =>
adam@1293 350 (EDml (e', fm), loc))
adamc@338 351 | ENextval e =>
adamc@338 352 S.map2 (mfe ctx e,
adamc@338 353 fn e' =>
adamc@338 354 (ENextval e', loc))
adamc@1073 355 | ESetval (e1, e2) =>
adamc@1073 356 S.bind2 (mfe ctx e1,
adamc@1073 357 fn e1' =>
adamc@1073 358 S.map2 (mfe ctx e2,
adamc@1073 359 fn e2' =>
adamc@1073 360 (ESetval (e1', e2'), loc)))
adamc@1112 361 | EUnurlify (e, t, b) =>
adamc@463 362 S.bind2 (mfe ctx e,
adamc@463 363 fn e' =>
adamc@463 364 S.map2 (mft t,
adamc@463 365 fn t' =>
adamc@1112 366 (EUnurlify (e', t', b), loc)))
adamc@815 367 | EJavaScript (m, e) =>
adamc@729 368 S.bind2 (mfmode ctx m,
adamc@729 369 fn m' =>
adamc@729 370 S.map2 (mfe ctx e,
adamc@729 371 fn e' =>
adamc@815 372 (EJavaScript (m', e'), loc)))
adamc@569 373
adamc@568 374 | ESignalReturn e =>
adamc@568 375 S.map2 (mfe ctx e,
adamc@568 376 fn e' =>
adamc@568 377 (ESignalReturn e', loc))
adamc@572 378 | ESignalBind (e1, e2) =>
adamc@572 379 S.bind2 (mfe ctx e1,
adamc@572 380 fn e1' =>
adamc@572 381 S.map2 (mfe ctx e2,
adamc@572 382 fn e2' =>
adamc@572 383 (ESignalBind (e1', e2'), loc)))
adamc@574 384 | ESignalSource e =>
adamc@574 385 S.map2 (mfe ctx e,
adamc@574 386 fn e' =>
adamc@574 387 (ESignalSource e', loc))
adamc@608 388
adam@1848 389 | EServerCall (s, t, eff, fm) =>
adamc@642 390 S.bind2 (mfe ctx s,
adamc@642 391 fn s' =>
adamc@1020 392 S.map2 (mft t,
adamc@1020 393 fn t' =>
adam@1848 394 (EServerCall (s', t', eff, fm), loc)))
adamc@1021 395 | ERecv (s, t) =>
adamc@670 396 S.bind2 (mfe ctx s,
adamc@695 397 fn s' =>
adamc@1021 398 S.map2 (mft t,
adamc@1021 399 fn t' =>
adamc@1021 400 (ERecv (s', t'), loc)))
adamc@1021 401 | ESleep s =>
adamc@1021 402 S.map2 (mfe ctx s,
adamc@695 403 fn s' =>
adamc@1021 404 (ESleep s', loc))
adamc@1021 405
adamc@1021 406 | ESpawn s =>
adamc@1021 407 S.map2 (mfe ctx s,
adamc@1021 408 fn s' =>
adamc@1021 409 (ESpawn s', loc))
adamc@729 410
adamc@729 411 and mfmode ctx mode =
adamc@729 412 case mode of
adamc@729 413 Attribute => S.return2 mode
adamc@729 414 | Script => S.return2 mode
adamc@729 415 | Source t =>
adamc@729 416 S.map2 (mft t,
adamc@729 417 fn t' => Source t')
adamc@26 418 in
adamc@26 419 mfe
adamc@26 420 end
adamc@26 421
adamc@26 422 fun mapfold {typ = fc, exp = fe} =
adamc@26 423 mapfoldB {typ = fc,
adamc@26 424 exp = fn () => fe,
adamc@26 425 bind = fn ((), _) => ()} ()
adamc@26 426
adamc@26 427 fun mapB {typ, exp, bind} ctx e =
adamc@26 428 case mapfoldB {typ = fn c => fn () => S.Continue (typ c, ()),
adamc@26 429 exp = fn ctx => fn e => fn () => S.Continue (exp ctx e, ()),
adamc@26 430 bind = bind} ctx e () of
adamc@26 431 S.Continue (e, ()) => e
adamc@26 432 | S.Return _ => raise Fail "MonoUtil.Exp.mapB: Impossible"
adamc@26 433
adamc@26 434 fun map {typ, exp} e =
adamc@26 435 case mapfold {typ = fn c => fn () => S.Continue (typ c, ()),
adamc@26 436 exp = fn e => fn () => S.Continue (exp e, ())} e () of
adamc@26 437 S.Return () => raise Fail "Mono_util.Exp.map"
adamc@26 438 | S.Continue (e, ()) => e
adamc@26 439
adamc@26 440 fun fold {typ, exp} s e =
adamc@26 441 case mapfold {typ = fn c => fn s => S.Continue (c, typ (c, s)),
adamc@26 442 exp = fn e => fn s => S.Continue (e, exp (e, s))} e s of
adamc@26 443 S.Continue (_, s) => s
adamc@26 444 | S.Return _ => raise Fail "MonoUtil.Exp.fold: Impossible"
adamc@26 445
adamc@26 446 fun exists {typ, exp} k =
adamc@26 447 case mapfold {typ = fn c => fn () =>
adamc@26 448 if typ c then
adamc@26 449 S.Return ()
adamc@26 450 else
adamc@26 451 S.Continue (c, ()),
adamc@26 452 exp = fn e => fn () =>
adamc@26 453 if exp e then
adamc@26 454 S.Return ()
adamc@26 455 else
adamc@26 456 S.Continue (e, ())} k () of
adamc@26 457 S.Return _ => true
adamc@26 458 | S.Continue _ => false
adamc@26 459
adamc@919 460 fun existsB {typ, exp, bind} ctx e =
adamc@919 461 case mapfoldB {typ = fn t => fn () =>
adamc@919 462 if typ t then
adamc@919 463 S.Return ()
adamc@919 464 else
adamc@919 465 S.Continue (t, ()),
adamc@919 466 exp = fn ctx => fn e => fn () =>
adamc@919 467 if exp (ctx, e) then
adamc@919 468 S.Return ()
adamc@919 469 else
adamc@919 470 S.Continue (e, ()),
adamc@919 471 bind = bind} ctx e () of
adamc@919 472 S.Return _ => true
adamc@919 473 | S.Continue _ => false
adamc@919 474
adamc@567 475 fun foldB {typ, exp, bind} ctx s e =
adamc@567 476 case mapfoldB {typ = fn t => fn s => S.Continue (t, typ (t, s)),
adamc@567 477 exp = fn ctx => fn e => fn s => S.Continue (e, exp (ctx, e, s)),
adamc@567 478 bind = bind} ctx e s of
adamc@567 479 S.Continue (_, s) => s
adamc@567 480 | S.Return _ => raise Fail "MonoUtil.Exp.foldB: Impossible"
adamc@567 481
adam@1612 482 fun appLoc f =
adam@1612 483 let
adam@1612 484 fun appl e =
adam@1612 485 (f e;
adam@1612 486 case #1 e of
adam@1612 487 EPrim _ => ()
adam@1612 488 | ERel _ => ()
adam@1612 489 | ENamed _ => ()
adam@1612 490 | ECon (_, _, eo) => Option.app appl eo
adam@1612 491 | ENone _ => ()
adam@1612 492 | ESome (_, e) => appl e
adam@1612 493 | EFfi _ => ()
adam@1663 494 | EFfiApp (_, _, es) => app (appl o #1) es
adam@1612 495 | EApp (e1, e2) => (appl e1; appl e2)
adam@1612 496 | EAbs (_, _, _, e1) => appl e1
adam@1612 497 | EUnop (_, e1) => appl e1
adam@1612 498 | EBinop (_, _, e1, e2) => (appl e1; appl e2)
adam@1612 499 | ERecord xets => app (appl o #2) xets
adam@1612 500 | EField (e1, _) => appl e1
adam@1612 501 | ECase (e1, pes, _) => (appl e1; app (appl o #2) pes)
adam@1612 502 | EStrcat (e1, e2) => (appl e1; appl e2)
adam@1612 503 | EError (e1, _) => appl e1
adam@1932 504 | EReturnBlob {blob = NONE, mimeType = e2, ...} => appl e2
adam@1932 505 | EReturnBlob {blob = SOME e1, mimeType = e2, ...} => (appl e1; appl e2)
adam@1612 506 | ERedirect (e1, _) => appl e1
adam@1612 507 | EWrite e1 => appl e1
adam@1612 508 | ESeq (e1, e2) => (appl e1; appl e2)
adam@1612 509 | ELet (_, _, e1, e2) => (appl e1; appl e2)
adam@1612 510 | EClosure (_, es) => app appl es
adam@1612 511 | EQuery {query = e1, body = e2, initial = e3, ...} => (appl e1; appl e2; appl e3)
adam@1612 512 | EDml (e1, _) => appl e1
adam@1612 513 | ENextval e1 => appl e1
adam@1612 514 | ESetval (e1, e2) => (appl e1; appl e2)
adam@1612 515 | EUnurlify (e1, _, _) => appl e1
adam@1612 516 | EJavaScript (_, e1) => appl e1
adam@1612 517 | ESignalReturn e1 => appl e1
adam@1612 518 | ESignalBind (e1, e2) => (appl e1; appl e2)
adam@1612 519 | ESignalSource e1 => appl e1
adam@1848 520 | EServerCall (e1, _, _, _) => appl e1
adam@1612 521 | ERecv (e1, _) => appl e1
adam@1612 522 | ESleep e1 => appl e1
adam@1612 523 | ESpawn e1 => appl e1)
adam@1612 524 in
adam@1612 525 appl
adam@1612 526 end
adam@1612 527
adamc@26 528 end
adamc@26 529
adamc@26 530 structure Decl = struct
adamc@26 531
adamc@26 532 datatype binder = datatype Exp.binder
adamc@26 533
adamc@26 534 fun mapfoldB {typ = fc, exp = fe, decl = fd, bind} =
adamc@26 535 let
adamc@26 536 val mft = Typ.mapfold fc
adamc@26 537
adamc@26 538 val mfe = Exp.mapfoldB {typ = fc, exp = fe, bind = bind}
adamc@26 539
adamc@26 540 fun mfd ctx d acc =
adamc@26 541 S.bindP (mfd' ctx d acc, fd ctx)
adamc@26 542
adamc@26 543 and mfd' ctx (dAll as (d, loc)) =
adamc@26 544 case d of
adamc@808 545 DDatatype dts =>
adamc@808 546 S.map2 (ListUtil.mapfold (fn (x, n, xncs) =>
adamc@808 547 S.map2 (ListUtil.mapfold (fn (x, n, c) =>
adamc@808 548 case c of
adamc@808 549 NONE => S.return2 (x, n, c)
adamc@808 550 | SOME c =>
adamc@808 551 S.map2 (mft c,
adamc@808 552 fn c' => (x, n, SOME c'))) xncs,
adamc@808 553 fn xncs' => (x, n, xncs'))) dts,
adamc@808 554 fn dts' =>
adamc@808 555 (DDatatype dts', loc))
adamc@164 556 | DVal vi =>
adamc@126 557 S.map2 (mfvi ctx vi,
adamc@126 558 fn vi' =>
adamc@126 559 (DVal vi', loc))
adamc@126 560 | DValRec vis =>
adamc@196 561 let
adamc@196 562 val ctx' = foldl (fn ((x, n, t, _, s), ctx') => bind (ctx', NamedE (x, n, t, NONE, s))) ctx vis
adamc@196 563 in
adamc@196 564 S.map2 (ListUtil.mapfold (mfvi ctx') vis,
adamc@196 565 fn vis' =>
adamc@196 566 (DValRec vis', loc))
adamc@196 567 end
adamc@1104 568 | DExport (ek, s, n, ts, t, b) =>
adamc@609 569 S.bind2 (ListUtil.mapfold mft ts,
adamc@120 570 fn ts' =>
adamc@609 571 S.map2 (mft t,
adamc@609 572 fn t' =>
adamc@1104 573 (DExport (ek, s, n, ts', t', b), loc)))
adamc@707 574 | DTable (s, xts, pe, ce) =>
adamc@707 575 S.bind2 (mfe ctx pe,
adamc@707 576 fn pe' =>
adamc@707 577 S.map2 (mfe ctx ce,
adamc@707 578 fn ce' =>
adamc@707 579 (DTable (s, xts, pe', ce'), loc)))
adamc@338 580 | DSequence _ => S.return2 dAll
adamc@754 581 | DView (s, xts, e) =>
adamc@754 582 S.map2 (mfe ctx e,
adamc@754 583 fn e' =>
adamc@754 584 (DView (s, xts, e'), loc))
adamc@271 585 | DDatabase _ => S.return2 dAll
adamc@569 586 | DJavaScript _ => S.return2 dAll
adamc@725 587 | DCookie _ => S.return2 dAll
adamc@718 588 | DStyle _ => S.return2 dAll
adamc@1075 589 | DTask (e1, e2) =>
adamc@1075 590 S.bind2 (mfe ctx e1,
adamc@1075 591 fn e1' =>
adamc@1075 592 S.map2 (mfe ctx e2,
adamc@1075 593 fn e2' =>
adamc@1075 594 (DTask (e1', e2'), loc)))
adamc@1199 595 | DPolicy pol =>
adamc@1199 596 S.map2 (mfpol ctx pol,
adamc@1199 597 fn p' =>
adamc@1199 598 (DPolicy p', loc))
adam@1294 599 | DOnError _ => S.return2 dAll
adamc@1199 600
adamc@1199 601 and mfpol ctx pol =
adamc@1199 602 case pol of
adamc@1214 603 PolClient e =>
adamc@1199 604 S.map2 (mfe ctx e,
adamc@1214 605 PolClient)
adamc@1220 606 | PolInsert e =>
adamc@1220 607 S.map2 (mfe ctx e,
adamc@1220 608 PolInsert)
adamc@1221 609 | PolDelete e =>
adamc@1221 610 S.map2 (mfe ctx e,
adamc@1221 611 PolDelete)
adamc@1223 612 | PolUpdate e =>
adamc@1223 613 S.map2 (mfe ctx e,
adamc@1223 614 PolUpdate)
adamc@1229 615 | PolSequence e =>
adamc@1229 616 S.map2 (mfe ctx e,
adamc@1229 617 PolSequence)
adamc@126 618
adamc@126 619 and mfvi ctx (x, n, t, e, s) =
adamc@126 620 S.bind2 (mft t,
adamc@126 621 fn t' =>
adamc@126 622 S.map2 (mfe ctx e,
adamc@126 623 fn e' =>
adamc@126 624 (x, n, t', e', s)))
adamc@26 625 in
adamc@26 626 mfd
adamc@26 627 end
adamc@26 628
adamc@26 629 fun mapfold {typ = fc, exp = fe, decl = fd} =
adamc@26 630 mapfoldB {typ = fc,
adamc@26 631 exp = fn () => fe,
adamc@26 632 decl = fn () => fd,
adamc@26 633 bind = fn ((), _) => ()} ()
adamc@26 634
adamc@26 635 fun fold {typ, exp, decl} s d =
adamc@26 636 case mapfold {typ = fn c => fn s => S.Continue (c, typ (c, s)),
adamc@26 637 exp = fn e => fn s => S.Continue (e, exp (e, s)),
adamc@26 638 decl = fn d => fn s => S.Continue (d, decl (d, s))} d s of
adamc@26 639 S.Continue (_, s) => s
adamc@26 640 | S.Return _ => raise Fail "MonoUtil.Decl.fold: Impossible"
adamc@26 641
adamc@506 642 fun map {typ, exp, decl} e =
adamc@506 643 case mapfold {typ = fn c => fn () => S.Continue (typ c, ()),
adamc@506 644 exp = fn e => fn () => S.Continue (exp e, ()),
adamc@506 645 decl = fn d => fn () => S.Continue (decl d, ())} e () of
adamc@506 646 S.Return () => raise Fail "MonoUtil.Decl.map: Impossible"
adamc@506 647 | S.Continue (e, ()) => e
adamc@506 648
adam@1800 649 fun foldMap {typ, exp, decl} s d =
adam@1800 650 case mapfold {typ = fn c => fn s => S.Continue (typ (c, s)),
adam@1800 651 exp = fn e => fn s => S.Continue (exp (e, s)),
adam@1800 652 decl = fn d => fn s => S.Continue (decl (d, s))} d s of
adam@1800 653 S.Continue v => v
adam@1800 654 | S.Return _ => raise Fail "MonoUtil.Decl.foldMap: Impossible"
adam@1800 655
adamc@567 656 fun foldMapB {typ, exp, decl, bind} ctx s d =
adamc@567 657 case mapfoldB {typ = fn c => fn s => S.Continue (typ (c, s)),
adamc@567 658 exp = fn ctx => fn e => fn s => S.Continue (exp (ctx, e, s)),
adamc@567 659 decl = fn ctx => fn d => fn s => S.Continue (decl (ctx, d, s)),
adamc@567 660 bind = bind} ctx d s of
adamc@567 661 S.Continue v => v
adamc@567 662 | S.Return _ => raise Fail "MonoUtil.Decl.foldMapB: Impossible"
adamc@567 663
adam@1847 664 fun exists {typ, exp, decl} k =
adam@1847 665 case mapfold {typ = fn c => fn () =>
adam@1847 666 if typ c then
adam@1847 667 S.Return ()
adam@1847 668 else
adam@1847 669 S.Continue (c, ()),
adam@1847 670 exp = fn e => fn () =>
adam@1847 671 if exp e then
adam@1847 672 S.Return ()
adam@1847 673 else
adam@1847 674 S.Continue (e, ()),
adam@1847 675 decl = fn d => fn () =>
adam@1847 676 if decl d then
adam@1847 677 S.Return ()
adam@1847 678 else
adam@1847 679 S.Continue (d, ())} k () of
adam@1847 680 S.Return _ => true
adam@1847 681 | S.Continue _ => false
adam@1847 682
adamc@26 683 end
adamc@26 684
adamc@26 685 structure File = struct
adamc@26 686
adamc@26 687 datatype binder = datatype Exp.binder
adamc@26 688
adamc@26 689 fun mapfoldB (all as {bind, ...}) =
adamc@26 690 let
adamc@26 691 val mfd = Decl.mapfoldB all
adamc@26 692
adam@1845 693 fun mff ctx (ds, ps) =
adamc@26 694 case ds of
adam@1845 695 nil => S.return2 (nil, ps)
adamc@26 696 | d :: ds' =>
adamc@26 697 S.bind2 (mfd ctx d,
adamc@26 698 fn d' =>
adamc@26 699 let
adamc@100 700 val ctx' =
adamc@26 701 case #1 d' of
adamc@808 702 DDatatype dts =>
adamc@808 703 foldl (fn ((x, n, xncs), ctx) =>
adamc@808 704 let
adamc@808 705 val ctx = bind (ctx, Datatype (x, n, xncs))
adamc@808 706 val t = (TDatatype (n, ref (ElabUtil.classifyDatatype xncs, xncs)),
adamc@808 707 #2 d')
adamc@808 708 in
adamc@808 709 foldl (fn ((x, n, to), ctx) =>
adamc@808 710 let
adamc@808 711 val t = case to of
adamc@808 712 NONE => t
adamc@808 713 | SOME t' => (TFun (t', t), #2 d')
adamc@808 714 in
adamc@808 715 bind (ctx, NamedE (x, n, t, NONE, ""))
adamc@808 716 end)
adamc@808 717 ctx xncs
adamc@808 718 end) ctx dts
adamc@164 719 | DVal (x, n, t, e, s) => bind (ctx, NamedE (x, n, t, SOME e, s))
adamc@126 720 | DValRec vis => foldl (fn ((x, n, t, e, s), ctx) =>
adamc@196 721 bind (ctx, NamedE (x, n, t, NONE, s))) ctx vis
adamc@109 722 | DExport _ => ctx
adamc@273 723 | DTable _ => ctx
adamc@338 724 | DSequence _ => ctx
adamc@754 725 | DView _ => ctx
adamc@271 726 | DDatabase _ => ctx
adamc@569 727 | DJavaScript _ => ctx
adamc@725 728 | DCookie _ => ctx
adamc@718 729 | DStyle _ => ctx
adamc@1075 730 | DTask _ => ctx
adamc@1199 731 | DPolicy _ => ctx
adam@1294 732 | DOnError _ => ctx
adamc@26 733 in
adam@1845 734 S.map2 (mff ctx' (ds', ps),
adam@1845 735 fn (ds', _) =>
adam@1845 736 (d' :: ds', ps))
adamc@26 737 end)
adamc@26 738 in
adamc@26 739 mff
adamc@26 740 end
adamc@26 741
adamc@26 742 fun mapfold {typ = fc, exp = fe, decl = fd} =
adamc@26 743 mapfoldB {typ = fc,
adamc@26 744 exp = fn () => fe,
adamc@26 745 decl = fn () => fd,
adamc@26 746 bind = fn ((), _) => ()} ()
adamc@26 747
adamc@26 748 fun mapB {typ, exp, decl, bind} ctx ds =
adamc@26 749 case mapfoldB {typ = fn c => fn () => S.Continue (typ c, ()),
adamc@26 750 exp = fn ctx => fn e => fn () => S.Continue (exp ctx e, ()),
adamc@26 751 decl = fn ctx => fn d => fn () => S.Continue (decl ctx d, ()),
adamc@26 752 bind = bind} ctx ds () of
adamc@26 753 S.Continue (ds, ()) => ds
adamc@26 754 | S.Return _ => raise Fail "MonoUtil.File.mapB: Impossible"
adamc@26 755
adamc@96 756 fun map {typ, exp, decl} e =
adamc@96 757 case mapfold {typ = fn c => fn () => S.Continue (typ c, ()),
adamc@96 758 exp = fn e => fn () => S.Continue (exp e, ()),
adamc@96 759 decl = fn d => fn () => S.Continue (decl d, ())} e () of
adamc@506 760 S.Return () => raise Fail "MonoUtil.File.map: Impossible"
adamc@96 761 | S.Continue (e, ()) => e
adamc@96 762
adamc@26 763 fun fold {typ, exp, decl} s d =
adamc@26 764 case mapfold {typ = fn c => fn s => S.Continue (c, typ (c, s)),
adamc@26 765 exp = fn e => fn s => S.Continue (e, exp (e, s)),
adamc@26 766 decl = fn d => fn s => S.Continue (d, decl (d, s))} d s of
adamc@26 767 S.Continue (_, s) => s
adamc@26 768 | S.Return _ => raise Fail "MonoUtil.File.fold: Impossible"
adamc@26 769
adam@1845 770 fun maxName (f : file) =
adam@1845 771 foldl (fn ((d, _) : decl, count) =>
adam@1845 772 case d of
adam@1845 773 DDatatype dts =>
adam@1845 774 foldl (fn ((_, n, ns), count) =>
adam@1845 775 foldl (fn ((_, n', _), m) => Int.max (n', m))
adam@1845 776 (Int.max (n, count)) ns) count dts
adam@1845 777 | DVal (_, n, _, _, _) => Int.max (n, count)
adam@1845 778 | DValRec vis => foldl (fn ((_, n, _, _, _), count) => Int.max (n, count)) count vis
adam@1845 779 | DExport _ => count
adam@1845 780 | DTable _ => count
adam@1845 781 | DSequence _ => count
adam@1845 782 | DView _ => count
adam@1845 783 | DDatabase _ => count
adam@1845 784 | DJavaScript _ => count
adam@1845 785 | DCookie _ => count
adam@1845 786 | DStyle _ => count
adam@1845 787 | DTask _ => count
adam@1845 788 | DPolicy _ => count
adam@1845 789 | DOnError _ => count) 0 (#1 f)
adamc@506 790
adam@1845 791 fun appLoc f (fl : file) =
adam@1612 792 let
adam@1612 793 val eal = Exp.appLoc f
adam@1612 794
adam@1612 795 fun appl (d : decl) =
adam@1612 796 case #1 d of
adam@1612 797 DDatatype _ => ()
adam@1612 798 | DVal (_, _, _, e1, _) => eal e1
adam@1612 799 | DValRec vis => app (eal o #4) vis
adam@1612 800 | DExport _ => ()
adam@1612 801 | DTable (_, _, e1, e2) => (eal e1; eal e2)
adam@1612 802 | DSequence _ => ()
adam@1612 803 | DView (_, _, e1) => eal e1
adam@1612 804 | DDatabase _ => ()
adam@1612 805 | DJavaScript _ => ()
adam@1612 806 | DCookie _ => ()
adam@1612 807 | DStyle _ => ()
adam@1612 808 | DTask (e1, e2) => (eal e1; eal e2)
adam@1612 809 | DPolicy pol => applPolicy pol
adam@1612 810 | DOnError _ => ()
adam@1612 811
adam@1612 812 and applPolicy p =
adam@1612 813 case p of
adam@1612 814 PolClient e1 => eal e1
adam@1612 815 | PolInsert e1 => eal e1
adam@1612 816 | PolDelete e1 => eal e1
adam@1612 817 | PolUpdate e1 => eal e1
adam@1612 818 | PolSequence e1 => eal e1
adam@1612 819 in
adam@1845 820 app appl (#1 fl)
adam@1612 821 end
adam@1612 822
adamc@26 823 end
adamc@26 824
adamc@26 825 end