Mercurial > urweb

annotate src/expl_print.sml @ 213:0343557355fc

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Explifying type classes
author Adam Chlipala <adamc@hcoop.net>
date Sat, 16 Aug 2008 14:45:23 -0400
parents 8a70e2919e86
children 71bafe66dbe1
rev   line source
adamc@38 1 (* Copyright (c) 2008, Adam Chlipala
adamc@38 2 * All rights reserved.
adamc@38 3 *
adamc@38 4 * Redistribution and use in source and binary forms, with or without
adamc@38 5 * modification, are permitted provided that the following conditions are met:
adamc@38 6 *
adamc@38 7 * - Redistributions of source code must retain the above copyright notice,
adamc@38 8 * this list of conditions and the following disclaimer.
adamc@38 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@38 10 * this list of conditions and the following disclaimer in the documentation
adamc@38 11 * and/or other materials provided with the distribution.
adamc@38 12 * - The names of contributors may not be used to endorse or promote products
adamc@38 13 * derived from this software without specific prior written permission.
adamc@38 14 *
adamc@38 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@38 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@38 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@38 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@38 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@38 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@38 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@38 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@38 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@38 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@38 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@38 26 *)
adamc@38 27
adamc@38 28 (* Pretty-printing elaborated Laconic/Web *)
adamc@38 29
adamc@38 30 structure ExplPrint :> EXPL_PRINT = struct
adamc@38 31
adamc@38 32 open Print.PD
adamc@38 33 open Print
adamc@38 34
adamc@38 35 open Expl
adamc@38 36
adamc@38 37 structure E = ExplEnv
adamc@38 38
adamc@38 39 val debug = ref false
adamc@38 40
adamc@38 41 fun p_kind' par (k, _) =
adamc@38 42 case k of
adamc@38 43 KType => string "Type"
adamc@38 44 | KArrow (k1, k2) => parenIf par (box [p_kind' true k1,
adamc@38 45 space,
adamc@38 46 string "->",
adamc@38 47 space,
adamc@38 48 p_kind k2])
adamc@38 49 | KName => string "Name"
adamc@38 50 | KRecord k => box [string "{", p_kind k, string "}"]
adamc@87 51 | KUnit => string "Unit"
adamc@213 52 | KTuple ks => box [string "(",
adamc@213 53 p_list_sep (box [space, string "*", space]) p_kind ks,
adamc@213 54 string ")"]
adamc@38 55
adamc@38 56 and p_kind k = p_kind' false k
adamc@38 57
adamc@38 58 fun p_con' par env (c, _) =
adamc@38 59 case c of
adamc@38 60 TFun (t1, t2) => parenIf par (box [p_con' true env t1,
adamc@38 61 space,
adamc@38 62 string "->",
adamc@38 63 space,
adamc@38 64 p_con env t2])
adamc@38 65 | TCFun (x, k, c) => parenIf par (box [string x,
adamc@38 66 space,
adamc@38 67 string "::",
adamc@38 68 space,
adamc@38 69 p_kind k,
adamc@38 70 space,
adamc@38 71 string "->",
adamc@38 72 space,
adamc@38 73 p_con (E.pushCRel env x k) c])
adamc@38 74 | TRecord (CRecord (_, xcs), _) => box [string "{",
adamc@38 75 p_list (fn (x, c) =>
adamc@38 76 box [p_name env x,
adamc@38 77 space,
adamc@38 78 string ":",
adamc@38 79 space,
adamc@38 80 p_con env c]) xcs,
adamc@38 81 string "}"]
adamc@38 82 | TRecord c => box [string "$",
adamc@38 83 p_con' true env c]
adamc@38 84
adamc@38 85 | CRel n =>
adamc@38 86 if !debug then
adamc@38 87 string (#1 (E.lookupCRel env n) ^ "_" ^ Int.toString n)
adamc@38 88 else
adamc@38 89 string (#1 (E.lookupCRel env n))
adamc@38 90 | CNamed n =>
adamc@38 91 ((if !debug then
adamc@38 92 string (#1 (E.lookupCNamed env n) ^ "__" ^ Int.toString n)
adamc@38 93 else
adamc@38 94 string (#1 (E.lookupCNamed env n)))
adamc@38 95 handle E.UnboundNamed _ => string ("UNBOUND_NAMED" ^ Int.toString n))
adamc@38 96 | CModProj (m1, ms, x) =>
adamc@38 97 let
adamc@109 98 val m1x = #1 (E.lookupStrNamed env m1)
adamc@109 99 handle E.UnboundNamed _ => "UNBOUND"
adamc@38 100
adamc@38 101 val m1s = if !debug then
adamc@38 102 m1x ^ "__" ^ Int.toString m1
adamc@38 103 else
adamc@38 104 m1x
adamc@38 105 in
adamc@146 106 p_list_sep (string ".") string (m1s :: ms @ [x])
adamc@38 107 end
adamc@38 108
adamc@38 109 | CApp (c1, c2) => parenIf par (box [p_con env c1,
adamc@38 110 space,
adamc@38 111 p_con' true env c2])
adamc@38 112 | CAbs (x, k, c) => parenIf par (box [string "fn",
adamc@38 113 space,
adamc@38 114 string x,
adamc@38 115 space,
adamc@38 116 string "::",
adamc@38 117 space,
adamc@38 118 p_kind k,
adamc@38 119 space,
adamc@38 120 string "=>",
adamc@38 121 space,
adamc@38 122 p_con (E.pushCRel env x k) c])
adamc@38 123
adamc@38 124 | CName s => box [string "#", string s]
adamc@38 125
adamc@38 126 | CRecord (k, xcs) =>
adamc@38 127 if !debug then
adamc@38 128 parenIf par (box [string "[",
adamc@38 129 p_list (fn (x, c) =>
adamc@38 130 box [p_con env x,
adamc@38 131 space,
adamc@38 132 string "=",
adamc@38 133 space,
adamc@38 134 p_con env c]) xcs,
adamc@38 135 string "]::",
adamc@38 136 p_kind k])
adamc@38 137 else
adamc@38 138 parenIf par (box [string "[",
adamc@38 139 p_list (fn (x, c) =>
adamc@38 140 box [p_con env x,
adamc@38 141 space,
adamc@38 142 string "=",
adamc@38 143 space,
adamc@38 144 p_con env c]) xcs,
adamc@38 145 string "]"])
adamc@38 146 | CConcat (c1, c2) => parenIf par (box [p_con' true env c1,
adamc@38 147 space,
adamc@38 148 string "++",
adamc@38 149 space,
adamc@38 150 p_con env c2])
adamc@68 151 | CFold _ => string "fold"
adamc@87 152 | CUnit => string "()"
adamc@213 153
adamc@213 154 | CTuple cs => box [string "(",
adamc@213 155 p_list (p_con env) cs,
adamc@213 156 string ")"]
adamc@213 157 | CProj (c, n) => box [p_con env c,
adamc@213 158 string ".",
adamc@213 159 string (Int.toString n)]
adamc@38 160
adamc@38 161 and p_con env = p_con' false env
adamc@38 162
adamc@38 163 and p_name env (all as (c, _)) =
adamc@38 164 case c of
adamc@38 165 CName s => string s
adamc@38 166 | _ => p_con env all
adamc@38 167
adamc@176 168 fun p_patCon env pc =
adamc@176 169 case pc of
adamc@176 170 PConVar n =>
adamc@176 171 ((if !debug then
adamc@176 172 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
adamc@176 173 else
adamc@176 174 string (#1 (E.lookupENamed env n)))
adamc@176 175 handle E.UnboundRel _ => string ("UNBOUND_NAMED" ^ Int.toString n))
adamc@176 176 | PConProj (m1, ms, x) =>
adamc@176 177 let
adamc@176 178 val m1x = #1 (E.lookupStrNamed env m1)
adamc@176 179 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@176 180
adamc@176 181 val m1s = if !debug then
adamc@176 182 m1x ^ "__" ^ Int.toString m1
adamc@176 183 else
adamc@176 184 m1x
adamc@176 185 in
adamc@176 186 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@176 187 end
adamc@176 188
adamc@176 189 fun p_pat' par env (p, _) =
adamc@176 190 case p of
adamc@176 191 PWild => string "_"
adamc@182 192 | PVar (s, _) => string s
adamc@176 193 | PPrim p => Prim.p_t p
adamc@191 194 | PCon (_, pc, _, NONE) => p_patCon env pc
adamc@191 195 | PCon (_, pc, _, SOME p) => parenIf par (box [p_patCon env pc,
adamc@191 196 space,
adamc@191 197 p_pat' true env p])
adamc@176 198 | PRecord xps =>
adamc@176 199 box [string "{",
adamc@182 200 p_list_sep (box [string ",", space]) (fn (x, p, _) =>
adamc@176 201 box [string x,
adamc@176 202 space,
adamc@176 203 string "=",
adamc@176 204 space,
adamc@176 205 p_pat env p]) xps,
adamc@176 206 string "}"]
adamc@176 207
adamc@176 208 and p_pat x = p_pat' false x
adamc@176 209
adamc@146 210 fun p_exp' par env (e, loc) =
adamc@38 211 case e of
adamc@38 212 EPrim p => Prim.p_t p
adamc@38 213 | ERel n =>
adamc@38 214 if !debug then
adamc@38 215 string (#1 (E.lookupERel env n) ^ "_" ^ Int.toString n)
adamc@38 216 else
adamc@38 217 string (#1 (E.lookupERel env n))
adamc@38 218 | ENamed n =>
adamc@38 219 if !debug then
adamc@38 220 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
adamc@38 221 else
adamc@38 222 string (#1 (E.lookupENamed env n))
adamc@38 223 | EModProj (m1, ms, x) =>
adamc@38 224 let
adamc@38 225 val (m1x, sgn) = E.lookupStrNamed env m1
adamc@146 226 handle E.UnboundNamed _ => ("UNBOUND", (SgnConst [], loc))
adamc@38 227
adamc@38 228 val m1s = if !debug then
adamc@38 229 m1x ^ "__" ^ Int.toString m1
adamc@38 230 else
adamc@38 231 m1x
adamc@38 232 in
adamc@146 233 p_list_sep (string ".") string (m1s :: ms @ [x])
adamc@38 234 end
adamc@38 235
adamc@38 236 | EApp (e1, e2) => parenIf par (box [p_exp env e1,
adamc@38 237 space,
adamc@38 238 p_exp' true env e2])
adamc@38 239 | EAbs (x, t, _, e) => parenIf par (box [string "fn",
adamc@38 240 space,
adamc@38 241 string x,
adamc@38 242 space,
adamc@38 243 string ":",
adamc@38 244 space,
adamc@38 245 p_con env t,
adamc@38 246 space,
adamc@38 247 string "=>",
adamc@38 248 space,
adamc@38 249 p_exp (E.pushERel env x t) e])
adamc@38 250 | ECApp (e, c) => parenIf par (box [p_exp env e,
adamc@38 251 space,
adamc@38 252 string "[",
adamc@38 253 p_con env c,
adamc@38 254 string "]"])
adamc@38 255 | ECAbs (x, k, e) => parenIf par (box [string "fn",
adamc@38 256 space,
adamc@38 257 string x,
adamc@38 258 space,
adamc@38 259 string "::",
adamc@38 260 space,
adamc@38 261 p_kind k,
adamc@38 262 space,
adamc@38 263 string "=>",
adamc@38 264 space,
adamc@38 265 p_exp (E.pushCRel env x k) e])
adamc@38 266
adamc@38 267 | ERecord xes => box [string "{",
adamc@38 268 p_list (fn (x, e, _) =>
adamc@38 269 box [p_name env x,
adamc@38 270 space,
adamc@38 271 string "=",
adamc@38 272 space,
adamc@38 273 p_exp env e]) xes,
adamc@38 274 string "}"]
adamc@38 275 | EField (e, c, {field, rest}) =>
adamc@38 276 if !debug then
adamc@38 277 box [p_exp' true env e,
adamc@38 278 string ".",
adamc@38 279 p_con' true env c,
adamc@38 280 space,
adamc@38 281 string "[",
adamc@38 282 p_con env field,
adamc@38 283 space,
adamc@38 284 string " in ",
adamc@38 285 space,
adamc@38 286 p_con env rest,
adamc@38 287 string "]"]
adamc@38 288 else
adamc@38 289 box [p_exp' true env e,
adamc@38 290 string ".",
adamc@38 291 p_con' true env c]
adamc@149 292 | ECut (e, c, {field, rest}) =>
adamc@149 293 parenIf par (if !debug then
adamc@149 294 box [p_exp' true env e,
adamc@149 295 space,
adamc@149 296 string "--",
adamc@149 297 space,
adamc@149 298 p_con' true env c,
adamc@149 299 space,
adamc@149 300 string "[",
adamc@149 301 p_con env field,
adamc@149 302 space,
adamc@149 303 string " in ",
adamc@149 304 space,
adamc@149 305 p_con env rest,
adamc@149 306 string "]"]
adamc@149 307 else
adamc@149 308 box [p_exp' true env e,
adamc@149 309 space,
adamc@149 310 string "--",
adamc@149 311 space,
adamc@149 312 p_con' true env c])
adamc@72 313 | EFold _ => string "fold"
adamc@38 314
adamc@109 315 | EWrite e => box [string "write(",
adamc@109 316 p_exp env e,
adamc@109 317 string ")"]
adamc@109 318
adamc@176 319 | ECase (e, pes, _) => parenIf par (box [string "case",
adamc@176 320 space,
adamc@176 321 p_exp env e,
adamc@176 322 space,
adamc@176 323 string "of",
adamc@176 324 space,
adamc@176 325 p_list_sep (box [space, string "|", space])
adamc@176 326 (fn (p, e) => box [p_pat env p,
adamc@176 327 space,
adamc@176 328 string "=>",
adamc@176 329 space,
adamc@176 330 p_exp env e]) pes])
adamc@176 331
adamc@38 332 and p_exp env = p_exp' false env
adamc@38 333
adamc@38 334 fun p_named x n =
adamc@38 335 if !debug then
adamc@38 336 box [string x,
adamc@38 337 string "__",
adamc@38 338 string (Int.toString n)]
adamc@38 339 else
adamc@38 340 string x
adamc@38 341
adamc@191 342 fun p_datatype env (x, n, xs, cons) =
adamc@162 343 let
adamc@191 344 val k = (KType, ErrorMsg.dummySpan)
adamc@191 345 val env = E.pushCNamed env x n k NONE
adamc@191 346 val env = foldl (fn (x, env) => E.pushCRel env x k) env xs
adamc@162 347 in
adamc@162 348 box [string "datatype",
adamc@162 349 space,
adamc@162 350 string x,
adamc@191 351 p_list_sep (box []) (fn x => box [space, string x]) xs,
adamc@162 352 space,
adamc@162 353 string "=",
adamc@162 354 space,
adamc@162 355 p_list_sep (box [space, string "|", space])
adamc@163 356 (fn (x, n, NONE) => if !debug then (string (x ^ "__" ^ Int.toString n))
adamc@163 357 else string x
adamc@193 358 | (x, n, SOME t) => box [if !debug then (string (x ^ "__" ^ Int.toString n))
adamc@163 359 else string x, space, string "of", space, p_con env t])
adamc@162 360 cons]
adamc@162 361 end
adamc@162 362
adamc@38 363 fun p_sgn_item env (sgi, _) =
adamc@38 364 case sgi of
adamc@38 365 SgiConAbs (x, n, k) => box [string "con",
adamc@38 366 space,
adamc@38 367 p_named x n,
adamc@38 368 space,
adamc@38 369 string "::",
adamc@38 370 space,
adamc@38 371 p_kind k]
adamc@38 372 | SgiCon (x, n, k, c) => box [string "con",
adamc@38 373 space,
adamc@38 374 p_named x n,
adamc@38 375 space,
adamc@38 376 string "::",
adamc@38 377 space,
adamc@38 378 p_kind k,
adamc@38 379 space,
adamc@38 380 string "=",
adamc@38 381 space,
adamc@38 382 p_con env c]
adamc@162 383 | SgiDatatype x => p_datatype env x
adamc@191 384 | SgiDatatypeImp (x, _, m1, ms, x', _, _) =>
adamc@162 385 let
adamc@162 386 val m1x = #1 (E.lookupStrNamed env m1)
adamc@162 387 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@162 388 in
adamc@162 389 box [string "datatype",
adamc@162 390 space,
adamc@162 391 string x,
adamc@162 392 space,
adamc@162 393 string "=",
adamc@162 394 space,
adamc@162 395 string "datatype",
adamc@162 396 space,
adamc@162 397 p_list_sep (string ".") string (m1x :: ms @ [x'])]
adamc@162 398 end
adamc@38 399 | SgiVal (x, n, c) => box [string "val",
adamc@38 400 space,
adamc@38 401 p_named x n,
adamc@38 402 space,
adamc@38 403 string ":",
adamc@38 404 space,
adamc@38 405 p_con env c]
adamc@38 406 | SgiStr (x, n, sgn) => box [string "structure",
adamc@38 407 space,
adamc@38 408 p_named x n,
adamc@38 409 space,
adamc@38 410 string ":",
adamc@38 411 space,
adamc@38 412 p_sgn env sgn]
adamc@64 413 | SgiSgn (x, n, sgn) => box [string "signature",
adamc@64 414 space,
adamc@64 415 p_named x n,
adamc@64 416 space,
adamc@64 417 string "=",
adamc@64 418 space,
adamc@64 419 p_sgn env sgn]
adamc@38 420
adamc@146 421 and p_sgn env (sgn, loc) =
adamc@38 422 case sgn of
adamc@38 423 SgnConst sgis => box [string "sig",
adamc@38 424 newline,
adamc@38 425 let
adamc@38 426 val (psgis, _) = ListUtil.foldlMap (fn (sgi, env) =>
adamc@38 427 (p_sgn_item env sgi,
adamc@38 428 E.sgiBinds env sgi))
adamc@38 429 env sgis
adamc@38 430 in
adamc@38 431 p_list_sep newline (fn x => x) psgis
adamc@38 432 end,
adamc@38 433 newline,
adamc@38 434 string "end"]
adamc@146 435 | SgnVar n => string ((#1 (E.lookupSgnNamed env n))
adamc@146 436 handle E.UnboundNamed _ => "UNBOUND")
adamc@45 437 | SgnFun (x, n, sgn, sgn') => box [string "functor",
adamc@45 438 space,
adamc@45 439 string "(",
adamc@45 440 string x,
adamc@45 441 space,
adamc@45 442 string ":",
adamc@45 443 space,
adamc@45 444 p_sgn env sgn,
adamc@45 445 string ")",
adamc@45 446 space,
adamc@45 447 string ":",
adamc@45 448 space,
adamc@45 449 p_sgn (E.pushStrNamed env x n sgn) sgn']
adamc@45 450 | SgnWhere (sgn, x, c) => box [p_sgn env sgn,
adamc@45 451 space,
adamc@45 452 string "where",
adamc@45 453 space,
adamc@45 454 string "con",
adamc@45 455 space,
adamc@45 456 string x,
adamc@45 457 space,
adamc@45 458 string "=",
adamc@45 459 space,
adamc@45 460 p_con env c]
adamc@64 461 | SgnProj (m1, ms, x) =>
adamc@64 462 let
adamc@64 463 val (m1x, sgn) = E.lookupStrNamed env m1
adamc@146 464 handle E.UnboundNamed _ => ("UNBOUND", (SgnConst [], loc))
adamc@64 465
adamc@64 466 val m1s = if !debug then
adamc@64 467 m1x ^ "__" ^ Int.toString m1
adamc@64 468 else
adamc@64 469 m1x
adamc@64 470 in
adamc@64 471 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@64 472 end
adamc@38 473
adamc@124 474 fun p_vali env (x, n, t, e) = box [p_named x n,
adamc@124 475 space,
adamc@124 476 string ":",
adamc@124 477 space,
adamc@124 478 p_con env t,
adamc@124 479 space,
adamc@124 480 string "=",
adamc@124 481 space,
adamc@124 482 p_exp env e]
adamc@124 483
adamc@124 484 fun p_decl env (dAll as (d, _) : decl) =
adamc@38 485 case d of
adamc@38 486 DCon (x, n, k, c) => box [string "con",
adamc@38 487 space,
adamc@38 488 p_named x n,
adamc@38 489 space,
adamc@38 490 string "::",
adamc@38 491 space,
adamc@38 492 p_kind k,
adamc@38 493 space,
adamc@38 494 string "=",
adamc@38 495 space,
adamc@38 496 p_con env c]
adamc@162 497 | DDatatype x => p_datatype env x
adamc@191 498 | DDatatypeImp (x, _, m1, ms, x', _, _) =>
adamc@162 499 let
adamc@162 500 val m1x = #1 (E.lookupStrNamed env m1)
adamc@162 501 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@162 502 in
adamc@162 503 box [string "datatype",
adamc@162 504 space,
adamc@162 505 string x,
adamc@162 506 space,
adamc@162 507 string "=",
adamc@162 508 space,
adamc@162 509 string "datatype",
adamc@162 510 space,
adamc@162 511 p_list_sep (string ".") string (m1x :: ms @ [x'])]
adamc@162 512 end
adamc@124 513 | DVal vi => box [string "val",
adamc@124 514 space,
adamc@124 515 p_vali env vi]
adamc@124 516 | DValRec vis =>
adamc@124 517 let
adamc@124 518 val env = E.declBinds env dAll
adamc@124 519 in
adamc@124 520 box [string "val",
adamc@124 521 space,
adamc@124 522 string "rec",
adamc@124 523 space,
adamc@124 524 p_list_sep (box [newline, string "and", space]) (p_vali env) vis]
adamc@124 525 end
adamc@38 526
adamc@38 527 | DSgn (x, n, sgn) => box [string "signature",
adamc@38 528 space,
adamc@38 529 p_named x n,
adamc@38 530 space,
adamc@38 531 string "=",
adamc@38 532 space,
adamc@38 533 p_sgn env sgn]
adamc@38 534 | DStr (x, n, sgn, str) => box [string "structure",
adamc@38 535 space,
adamc@38 536 p_named x n,
adamc@38 537 space,
adamc@38 538 string ":",
adamc@38 539 space,
adamc@38 540 p_sgn env sgn,
adamc@38 541 space,
adamc@38 542 string "=",
adamc@38 543 space,
adamc@38 544 p_str env str]
adamc@48 545 | DFfiStr (x, n, sgn) => box [string "extern",
adamc@48 546 space,
adamc@48 547 string "structure",
adamc@48 548 space,
adamc@48 549 p_named x n,
adamc@48 550 space,
adamc@48 551 string ":",
adamc@48 552 space,
adamc@48 553 p_sgn env sgn]
adamc@109 554 | DExport (_, sgn, str) => box [string "export",
adamc@109 555 space,
adamc@109 556 p_str env str,
adamc@109 557 space,
adamc@109 558 string ":",
adamc@109 559 space,
adamc@109 560 p_sgn env sgn]
adamc@38 561
adamc@38 562 and p_str env (str, _) =
adamc@38 563 case str of
adamc@38 564 StrConst ds => box [string "struct",
adamc@38 565 newline,
adamc@38 566 p_file env ds,
adamc@38 567 newline,
adamc@38 568 string "end"]
adamc@146 569 | StrVar n =>
adamc@146 570 let
adamc@146 571 val x = #1 (E.lookupStrNamed env n)
adamc@146 572 handle E.UnboundNamed _ => "UNBOUND"
adamc@146 573
adamc@146 574 val s = if !debug then
adamc@146 575 x ^ "__" ^ Int.toString n
adamc@146 576 else
adamc@146 577 x
adamc@146 578 in
adamc@146 579 string s
adamc@146 580 end
adamc@38 581 | StrProj (str, s) => box [p_str env str,
adamc@38 582 string ".",
adamc@38 583 string s]
adamc@45 584 | StrFun (x, n, sgn, sgn', str) =>
adamc@45 585 let
adamc@45 586 val env' = E.pushStrNamed env x n sgn
adamc@45 587 in
adamc@45 588 box [string "functor",
adamc@45 589 space,
adamc@45 590 string "(",
adamc@45 591 string x,
adamc@45 592 space,
adamc@45 593 string ":",
adamc@45 594 space,
adamc@45 595 p_sgn env sgn,
adamc@45 596 string ")",
adamc@45 597 space,
adamc@45 598 string ":",
adamc@45 599 space,
adamc@45 600 p_sgn env' sgn',
adamc@45 601 space,
adamc@45 602 string "=>",
adamc@45 603 space,
adamc@45 604 p_str env' str]
adamc@45 605 end
adamc@45 606 | StrApp (str1, str2) => box [p_str env str1,
adamc@45 607 string "(",
adamc@45 608 p_str env str2,
adamc@45 609 string ")"]
adamc@38 610
adamc@38 611 and p_file env file =
adamc@38 612 let
adamc@38 613 val (pds, _) = ListUtil.foldlMap (fn (d, env) =>
adamc@38 614 (p_decl env d,
adamc@38 615 E.declBinds env d))
adamc@38 616 env file
adamc@38 617 in
adamc@38 618 p_list_sep newline (fn x => x) pds
adamc@38 619 end
adamc@38 620
adamc@38 621 end