Mercurial > urweb

annotate src/reduce.sml @ 645:1b571a05874c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
React demo
author Adam Chlipala <adamc@hcoop.net>
date Tue, 10 Mar 2009 11:18:01 -0400
parents 230654093b51
children 70cbdcf5989b
rev   line source
adamc@20 1 (* Copyright (c) 2008, Adam Chlipala
adamc@20 2 * All rights reserved.
adamc@20 3 *
adamc@20 4 * Redistribution and use in source and binary forms, with or without
adamc@20 5 * modification, are permitted provided that the following conditions are met:
adamc@20 6 *
adamc@20 7 * - Redistributions of source code must retain the above copyright notice,
adamc@20 8 * this list of conditions and the following disclaimer.
adamc@20 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@20 10 * this list of conditions and the following disclaimer in the documentation
adamc@20 11 * and/or other materials provided with the distribution.
adamc@20 12 * - The names of contributors may not be used to endorse or promote products
adamc@20 13 * derived from this software without specific prior written permission.
adamc@20 14 *
adamc@20 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@20 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@20 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@20 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@20 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@20 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@20 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@20 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@20 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@20 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@20 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@20 26 *)
adamc@20 27
adamc@20 28 (* Simplify a Core program algebraically *)
adamc@20 29
adamc@20 30 structure Reduce :> REDUCE = struct
adamc@20 31
adamc@20 32 open Core
adamc@20 33
adamc@508 34 structure IM = IntBinaryMap
adamc@20 35
adamc@508 36 datatype env_item =
adamc@626 37 UnknownK
adamc@626 38 | KnownK of kind
adamc@626 39
adamc@626 40 | UnknownC
adamc@508 41 | KnownC of con
adamc@21 42
adamc@508 43 | UnknownE
adamc@508 44 | KnownE of exp
adamc@20 45
adamc@626 46 | Lift of int * int * int
adamc@20 47
adamc@508 48 type env = env_item list
adamc@20 49
adamc@510 50 fun ei2s ei =
adamc@510 51 case ei of
adamc@626 52 UnknownK => "UK"
adamc@626 53 | KnownK _ => "KK"
adamc@626 54 | UnknownC => "UC"
adamc@510 55 | KnownC _ => "KC"
adamc@510 56 | UnknownE => "UE"
adamc@510 57 | KnownE _ => "KE"
adamc@626 58 | Lift (_, n1, n2) => "(" ^ Int.toString n1 ^ ", " ^ Int.toString n2 ^ ")"
adamc@510 59
adamc@510 60 fun e2s env = String.concatWith " " (map ei2s env)
adamc@510 61
adamc@510 62 val deKnown = List.filter (fn KnownC _ => false
adamc@510 63 | KnownE _ => false
adamc@626 64 | KnownK _ => false
adamc@510 65 | _ => true)
adamc@510 66
adamc@626 67 fun kindConAndExp (namedC, namedE) =
adamc@508 68 let
adamc@626 69 fun kind env (all as (k, loc)) =
adamc@626 70 case k of
adamc@626 71 KType => all
adamc@626 72 | KArrow (k1, k2) => (KArrow (kind env k1, kind env k2), loc)
adamc@626 73 | KName => all
adamc@626 74 | KRecord k => (KRecord (kind env k), loc)
adamc@626 75 | KUnit => all
adamc@626 76 | KTuple ks => (KTuple (map (kind env) ks), loc)
adamc@626 77
adamc@626 78 | KRel n =>
adamc@626 79 let
adamc@626 80 fun find (n', env, nudge, lift) =
adamc@626 81 case env of
adamc@626 82 [] => raise Fail "Reduce.kind: KRel"
adamc@626 83 | UnknownC :: rest => find (n', rest, nudge, lift)
adamc@626 84 | KnownC _ :: rest => find (n', rest, nudge, lift)
adamc@626 85 | UnknownE :: rest => find (n', rest, nudge, lift)
adamc@626 86 | KnownE _ :: rest => find (n', rest, nudge, lift)
adamc@626 87 | Lift (lift', _, _) :: rest => find (n', rest, nudge + lift', lift + lift')
adamc@626 88 | UnknownK :: rest =>
adamc@626 89 if n' = 0 then
adamc@626 90 (KRel (n + nudge), loc)
adamc@626 91 else
adamc@626 92 find (n' - 1, rest, nudge, lift + 1)
adamc@626 93 | KnownK k :: rest =>
adamc@626 94 if n' = 0 then
adamc@626 95 kind (Lift (lift, 0, 0) :: rest) k
adamc@626 96 else
adamc@626 97 find (n' - 1, rest, nudge - 1, lift)
adamc@626 98 in
adamc@626 99 find (n, env, 0, 0)
adamc@626 100 end
adamc@626 101 | KFun (x, k) => (KFun (x, kind (UnknownK :: env) k), loc)
adamc@626 102
adamc@508 103 fun con env (all as (c, loc)) =
adamc@510 104 ((*Print.prefaces "con" [("c", CorePrint.p_con CoreEnv.empty all)];*)
adamc@508 105 case c of
adamc@508 106 TFun (c1, c2) => (TFun (con env c1, con env c2), loc)
adamc@626 107 | TCFun (x, k, c2) => (TCFun (x, kind env k, con (UnknownC :: env) c2), loc)
adamc@626 108 | TKFun (x, c2) => (TKFun (x, con (UnknownK :: env) c2), loc)
adamc@508 109 | TRecord c => (TRecord (con env c), loc)
adamc@215 110
adamc@508 111 | CRel n =>
adamc@508 112 let
adamc@626 113 fun find (n', env, nudge, liftK, liftC) =
adamc@510 114 case env of
adamc@510 115 [] => raise Fail "Reduce.con: CRel"
adamc@626 116 | UnknownK :: rest => find (n', rest, nudge, liftK + 1, liftC)
adamc@626 117 | KnownK _ :: rest => find (n', rest, nudge, liftK, liftC)
adamc@626 118 | UnknownE :: rest => find (n', rest, nudge, liftK, liftC)
adamc@626 119 | KnownE _ :: rest => find (n', rest, nudge, liftK, liftC)
adamc@626 120 | Lift (liftK', liftC', _) :: rest => find (n', rest, nudge + liftC',
adamc@626 121 liftK + liftK', liftC + liftC')
adamc@510 122 | UnknownC :: rest =>
adamc@510 123 if n' = 0 then
adamc@510 124 (CRel (n + nudge), loc)
adamc@510 125 else
adamc@626 126 find (n' - 1, rest, nudge, liftK, liftC + 1)
adamc@510 127 | KnownC c :: rest =>
adamc@510 128 if n' = 0 then
adamc@626 129 con (Lift (liftK, liftC, 0) :: rest) c
adamc@510 130 else
adamc@626 131 find (n' - 1, rest, nudge - 1, liftK, liftC)
adamc@508 132 in
adamc@510 133 (*print (Int.toString n ^ ": " ^ e2s env ^ "\n");*)
adamc@626 134 find (n, env, 0, 0, 0)
adamc@508 135 end
adamc@508 136 | CNamed n =>
adamc@508 137 (case IM.find (namedC, n) of
adamc@508 138 NONE => all
adamc@508 139 | SOME c => c)
adamc@508 140 | CFfi _ => all
adamc@508 141 | CApp (c1, c2) =>
adamc@508 142 let
adamc@508 143 val c1 = con env c1
adamc@508 144 val c2 = con env c2
adamc@508 145 in
adamc@508 146 case #1 c1 of
adamc@508 147 CAbs (_, _, b) =>
adamc@510 148 con (KnownC c2 :: deKnown env) b
adamc@215 149
adamc@621 150 | CApp ((CMap (dom, ran), _), f) =>
adamc@508 151 (case #1 c2 of
adamc@626 152 CRecord (_, []) => (CRecord (kind env ran, []), loc)
adamc@621 153 | CRecord (_, (x, c) :: rest) =>
adamc@510 154 con (deKnown env)
adamc@621 155 (CConcat ((CRecord (ran, [(x, (CApp (f, c), loc))]), loc),
adamc@626 156 (CApp (c1, (CRecord (kind env dom, rest), loc)), loc)), loc)
adamc@508 157 | _ => (CApp (c1, c2), loc))
adamc@20 158
adamc@508 159 | _ => (CApp (c1, c2), loc)
adamc@508 160 end
adamc@626 161 | CAbs (x, k, b) => (CAbs (x, kind env k, con (UnknownC :: env) b), loc)
adamc@626 162
adamc@626 163 | CKApp (c1, k) =>
adamc@626 164 let
adamc@626 165 val c1 = con env c1
adamc@626 166 in
adamc@626 167 case #1 c1 of
adamc@626 168 CKAbs (_, b) =>
adamc@626 169 con (KnownK k :: deKnown env) b
adamc@626 170
adamc@626 171 | _ => (CKApp (c1, kind env k), loc)
adamc@626 172 end
adamc@626 173 | CKAbs (x, b) => (CKAbs (x, con (UnknownK :: env) b), loc)
adamc@20 174
adamc@508 175 | CName _ => all
adamc@21 176
adamc@626 177 | CRecord (k, xcs) => (CRecord (kind env k, map (fn (x, c) => (con env x, con env c)) xcs), loc)
adamc@508 178 | CConcat (c1, c2) =>
adamc@508 179 let
adamc@508 180 val c1 = con env c1
adamc@508 181 val c2 = con env c2
adamc@508 182 in
adamc@508 183 case (#1 c1, #1 c2) of
adamc@508 184 (CRecord (k, xcs1), CRecord (_, xcs2)) =>
adamc@626 185 (CRecord (kind env k, xcs1 @ xcs2), loc)
adamc@508 186 | _ => (CConcat (c1, c2), loc)
adamc@508 187 end
adamc@626 188 | CMap (dom, ran) => (CMap (kind env dom, kind env ran), loc)
adamc@74 189
adamc@508 190 | CUnit => all
adamc@21 191
adamc@508 192 | CTuple cs => (CTuple (map (con env) cs), loc)
adamc@508 193 | CProj (c, n) =>
adamc@508 194 let
adamc@508 195 val c = con env c
adamc@508 196 in
adamc@508 197 case #1 c of
adamc@508 198 CTuple cs => List.nth (cs, n - 1)
adamc@508 199 | _ => (CProj (c, n), loc)
adamc@510 200 end)
adamc@22 201
adamc@509 202 fun patCon pc =
adamc@509 203 case pc of
adamc@509 204 PConVar _ => pc
adamc@509 205 | PConFfi {mod = m, datatyp, params, con = c, arg, kind} =>
adamc@509 206 PConFfi {mod = m, datatyp = datatyp, params = params, con = c,
adamc@509 207 arg = Option.map (con (map (fn _ => UnknownC) params)) arg,
adamc@509 208 kind = kind}
adamc@509 209
adamc@509 210
adamc@509 211 val k = (KType, ErrorMsg.dummySpan)
adamc@509 212 fun doPart e (this as (x, t), rest) =
adamc@509 213 ((x, (EField (e, x, {field = t, rest = (CRecord (k, rest), #2 t)}), #2 t), t),
adamc@509 214 this :: rest)
adamc@509 215
adamc@509 216 fun exp env (all as (e, loc)) =
adamc@510 217 ((*Print.prefaces "exp" [("e", CorePrint.p_exp CoreEnv.empty all),
adamc@510 218 ("env", Print.PD.string (e2s env))];*)
adamc@509 219 case e of
adamc@509 220 EPrim _ => all
adamc@509 221 | ERel n =>
adamc@509 222 let
adamc@626 223 fun find (n', env, nudge, liftK, liftC, liftE) =
adamc@510 224 case env of
adamc@510 225 [] => raise Fail "Reduce.exp: ERel"
adamc@626 226 | UnknownK :: rest => find (n', rest, nudge, liftK + 1, liftC, liftE)
adamc@626 227 | KnownK _ :: rest => find (n', rest, nudge, liftK, liftC, liftE)
adamc@626 228 | UnknownC :: rest => find (n', rest, nudge, liftK, liftC + 1, liftE)
adamc@626 229 | KnownC _ :: rest => find (n', rest, nudge, liftK, liftC, liftE)
adamc@626 230 | Lift (liftK', liftC', liftE') :: rest =>
adamc@626 231 find (n', rest, nudge + liftE',
adamc@626 232 liftK + liftK', liftC + liftC', liftE + liftE')
adamc@510 233 | UnknownE :: rest =>
adamc@510 234 if n' = 0 then
adamc@510 235 (ERel (n + nudge), loc)
adamc@510 236 else
adamc@626 237 find (n' - 1, rest, nudge, liftK, liftC, liftE + 1)
adamc@510 238 | KnownE e :: rest =>
adamc@510 239 if n' = 0 then
adamc@510 240 ((*print "SUBSTITUTING\n";*)
adamc@626 241 exp (Lift (liftK, liftC, liftE) :: rest) e)
adamc@510 242 else
adamc@626 243 find (n' - 1, rest, nudge - 1, liftK, liftC, liftE)
adamc@509 244 in
adamc@510 245 (*print (Int.toString n ^ ": " ^ e2s env ^ "\n");*)
adamc@626 246 find (n, env, 0, 0, 0, 0)
adamc@509 247 end
adamc@509 248 | ENamed n =>
adamc@509 249 (case IM.find (namedE, n) of
adamc@509 250 NONE => all
adamc@509 251 | SOME e => e)
adamc@509 252 | ECon (dk, pc, cs, eo) => (ECon (dk, patCon pc,
adamc@509 253 map (con env) cs, Option.map (exp env) eo), loc)
adamc@509 254 | EFfi _ => all
adamc@509 255 | EFfiApp (m, f, es) => (EFfiApp (m, f, map (exp env) es), loc)
adamc@509 256
adamc@509 257 | EApp (e1, e2) =>
adamc@509 258 let
adamc@509 259 val e1 = exp env e1
adamc@509 260 val e2 = exp env e2
adamc@509 261 in
adamc@509 262 case #1 e1 of
adamc@510 263 EAbs (_, _, _, b) => exp (KnownE e2 :: deKnown env) b
adamc@509 264 | _ => (EApp (e1, e2), loc)
adamc@509 265 end
adamc@509 266
adamc@509 267 | EAbs (x, dom, ran, e) => (EAbs (x, con env dom, con env ran, exp (UnknownE :: env) e), loc)
adamc@509 268
adamc@509 269 | ECApp (e, c) =>
adamc@509 270 let
adamc@509 271 val e = exp env e
adamc@509 272 val c = con env c
adamc@509 273 in
adamc@509 274 case #1 e of
adamc@510 275 ECAbs (_, _, b) => exp (KnownC c :: deKnown env) b
adamc@509 276 | _ => (ECApp (e, c), loc)
adamc@509 277 end
adamc@509 278
adamc@626 279 | ECAbs (x, k, e) => (ECAbs (x, kind env k, exp (UnknownC :: env) e), loc)
adamc@626 280
adamc@626 281 | EKApp (e, k) =>
adamc@626 282 let
adamc@626 283 val e = exp env e
adamc@626 284 in
adamc@626 285 case #1 e of
adamc@626 286 EKAbs (_, b) => exp (KnownK k :: deKnown env) b
adamc@626 287 | _ => (EKApp (e, kind env k), loc)
adamc@626 288 end
adamc@626 289
adamc@626 290 | EKAbs (x, e) => (EKAbs (x, exp (UnknownK :: env) e), loc)
adamc@509 291
adamc@509 292 | ERecord xcs => (ERecord (map (fn (x, e, t) => (con env x, exp env e, con env t)) xcs), loc)
adamc@509 293 | EField (e, c, {field, rest}) =>
adamc@509 294 let
adamc@509 295 val e = exp env e
adamc@509 296 val c = con env c
adamc@509 297
adamc@509 298 fun default () = (EField (e, c, {field = con env field, rest = con env rest}), loc)
adamc@509 299 in
adamc@509 300 case (#1 e, #1 c) of
adamc@509 301 (ERecord xcs, CName x) =>
adamc@509 302 (case List.find (fn ((CName x', _), _, _) => x' = x | _ => false) xcs of
adamc@509 303 NONE => default ()
adamc@509 304 | SOME (_, e, _) => e)
adamc@509 305 | _ => default ()
adamc@509 306 end
adamc@509 307
adamc@509 308 | EConcat (e1, c1, e2, c2) =>
adamc@509 309 let
adamc@509 310 val e1 = exp env e1
adamc@509 311 val e2 = exp env e2
adamc@509 312 in
adamc@509 313 case (#1 e1, #1 e2) of
adamc@509 314 (ERecord xes1, ERecord xes2) => (ERecord (xes1 @ xes2), loc)
adamc@509 315 | _ =>
adamc@509 316 let
adamc@509 317 val c1 = con env c1
adamc@509 318 val c2 = con env c2
adamc@509 319 in
adamc@509 320 case (#1 c1, #1 c2) of
adamc@509 321 (CRecord (k, xcs1), CRecord (_, xcs2)) =>
adamc@509 322 let
adamc@509 323 val (xes1, rest) = ListUtil.foldlMap (doPart e1) [] xcs1
adamc@509 324 val (xes2, _) = ListUtil.foldlMap (doPart e2) rest xcs2
adamc@509 325 in
adamc@510 326 exp (deKnown env) (ERecord (xes1 @ xes2), loc)
adamc@509 327 end
adamc@509 328 | _ => (EConcat (e1, c1, e2, c2), loc)
adamc@509 329 end
adamc@509 330 end
adamc@509 331
adamc@509 332 | ECut (e, c, {field, rest}) =>
adamc@509 333 let
adamc@509 334 val e = exp env e
adamc@509 335 val c = con env c
adamc@509 336
adamc@509 337 fun default () =
adamc@509 338 let
adamc@509 339 val rest = con env rest
adamc@509 340 in
adamc@509 341 case #1 rest of
adamc@509 342 CRecord (k, xcs) =>
adamc@509 343 let
adamc@509 344 val (xes, _) = ListUtil.foldlMap (doPart e) [] xcs
adamc@509 345 in
adamc@510 346 exp (deKnown env) (ERecord xes, loc)
adamc@509 347 end
adamc@509 348 | _ => (ECut (e, c, {field = con env field, rest = rest}), loc)
adamc@509 349 end
adamc@509 350 in
adamc@509 351 case (#1 e, #1 c) of
adamc@509 352 (ERecord xes, CName x) =>
adamc@509 353 if List.all (fn ((CName _, _), _, _) => true | _ => false) xes then
adamc@509 354 (ERecord (List.filter (fn ((CName x', _), _, _) => x' <> x
adamc@509 355 | _ => raise Fail "Reduce: ECut") xes), loc)
adamc@509 356 else
adamc@509 357 default ()
adamc@509 358 | _ => default ()
adamc@509 359 end
adamc@509 360
adamc@509 361 | ECutMulti (e, c, {rest}) =>
adamc@509 362 let
adamc@509 363 val e = exp env e
adamc@509 364 val c = con env c
adamc@509 365
adamc@509 366 fun default () =
adamc@509 367 let
adamc@509 368 val rest = con env rest
adamc@509 369 in
adamc@509 370 case #1 rest of
adamc@509 371 CRecord (k, xcs) =>
adamc@509 372 let
adamc@509 373 val (xes, _) = ListUtil.foldlMap (doPart e) [] xcs
adamc@509 374 in
adamc@510 375 exp (deKnown env) (ERecord xes, loc)
adamc@509 376 end
adamc@509 377 | _ => (ECutMulti (e, c, {rest = rest}), loc)
adamc@509 378 end
adamc@509 379 in
adamc@509 380 case (#1 e, #1 c) of
adamc@509 381 (ERecord xes, CRecord (_, xcs)) =>
adamc@509 382 if List.all (fn ((CName _, _), _, _) => true | _ => false) xes
adamc@509 383 andalso List.all (fn ((CName _, _), _) => true | _ => false) xcs then
adamc@509 384 (ERecord (List.filter (fn ((CName x', _), _, _) =>
adamc@509 385 List.all (fn ((CName x, _), _) => x' <> x
adamc@509 386 | _ => raise Fail "Reduce: ECutMulti [1]") xcs
adamc@509 387 | _ => raise Fail "Reduce: ECutMulti [2]") xes), loc)
adamc@509 388 else
adamc@509 389 default ()
adamc@509 390 | _ => default ()
adamc@509 391 end
adamc@509 392
adamc@509 393 | ECase (e, pes, {disc, result}) =>
adamc@509 394 let
adamc@509 395 fun patBinds (p, _) =
adamc@509 396 case p of
adamc@509 397 PWild => 0
adamc@509 398 | PVar _ => 1
adamc@509 399 | PPrim _ => 0
adamc@509 400 | PCon (_, _, _, NONE) => 0
adamc@509 401 | PCon (_, _, _, SOME p) => patBinds p
adamc@509 402 | PRecord xpts => foldl (fn ((_, p, _), n) => n + patBinds p) 0 xpts
adamc@509 403
adamc@509 404 fun pat (all as (p, loc)) =
adamc@509 405 case p of
adamc@509 406 PWild => all
adamc@509 407 | PVar (x, t) => (PVar (x, con env t), loc)
adamc@509 408 | PPrim _ => all
adamc@509 409 | PCon (dk, pc, cs, po) =>
adamc@509 410 (PCon (dk, patCon pc, map (con env) cs, Option.map pat po), loc)
adamc@509 411 | PRecord xpts => (PRecord (map (fn (x, p, t) => (x, pat p, con env t)) xpts), loc)
adamc@509 412 in
adamc@509 413 (ECase (exp env e,
adamc@509 414 map (fn (p, e) => (pat p,
adamc@509 415 exp (List.tabulate (patBinds p, fn _ => UnknownE) @ env) e))
adamc@509 416 pes, {disc = con env disc, result = con env result}), loc)
adamc@509 417 end
adamc@509 418
adamc@509 419 | EWrite e => (EWrite (exp env e), loc)
adamc@509 420 | EClosure (n, es) => (EClosure (n, map (exp env) es), loc)
adamc@509 421
adamc@607 422 | ELet (x, t, e1, e2) => (ELet (x, con env t, exp env e1, exp (UnknownE :: env) e2), loc)
adamc@607 423
adamc@609 424 | EServerCall (n, es, e, t) => (EServerCall (n, map (exp env) es, exp env e, con env t), loc))
adamc@417 425 in
adamc@626 426 {kind = kind, con = con, exp = exp}
adamc@417 427 end
adamc@21 428
adamc@626 429 fun kind namedC env k = #kind (kindConAndExp (namedC, IM.empty)) env k
adamc@626 430 fun con namedC env c = #con (kindConAndExp (namedC, IM.empty)) env c
adamc@626 431 fun exp (namedC, namedE) env e = #exp (kindConAndExp (namedC, namedE)) env e
adamc@20 432
adamc@508 433 fun reduce file =
adamc@508 434 let
adamc@508 435 fun doDecl (d as (_, loc), st as (namedC, namedE)) =
adamc@508 436 case #1 d of
adamc@508 437 DCon (x, n, k, c) =>
adamc@508 438 let
adamc@626 439 val k = kind namedC [] k
adamc@509 440 val c = con namedC [] c
adamc@508 441 in
adamc@508 442 ((DCon (x, n, k, c), loc),
adamc@508 443 (IM.insert (namedC, n, c), namedE))
adamc@508 444 end
adamc@508 445 | DDatatype (x, n, ps, cs) =>
adamc@509 446 let
adamc@509 447 val env = map (fn _ => UnknownC) ps
adamc@509 448 in
adamc@509 449 ((DDatatype (x, n, ps, map (fn (x, n, co) => (x, n, Option.map (con namedC env) co)) cs), loc),
adamc@509 450 st)
adamc@509 451 end
adamc@508 452 | DVal (x, n, t, e, s) =>
adamc@508 453 let
adamc@509 454 val t = con namedC [] t
adamc@509 455 val e = exp (namedC, namedE) [] e
adamc@508 456 in
adamc@508 457 ((DVal (x, n, t, e, s), loc),
adamc@508 458 (namedC, IM.insert (namedE, n, e)))
adamc@508 459 end
adamc@508 460 | DValRec vis =>
adamc@509 461 ((DValRec (map (fn (x, n, t, e, s) => (x, n, con namedC [] t, exp (namedC, namedE) [] e, s)) vis), loc),
adamc@508 462 st)
adamc@508 463 | DExport _ => (d, st)
adamc@509 464 | DTable (s, n, c, s') => ((DTable (s, n, con namedC [] c, s'), loc), st)
adamc@508 465 | DSequence _ => (d, st)
adamc@508 466 | DDatabase _ => (d, st)
adamc@509 467 | DCookie (s, n, c, s') => ((DCookie (s, n, con namedC [] c, s'), loc), st)
adamc@20 468
adamc@508 469 val (file, _) = ListUtil.foldlMap doDecl (IM.empty, IM.empty) file
adamc@508 470 in
adamc@508 471 file
adamc@508 472 end
adamc@20 473
adamc@20 474 end