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annotate src/source_print.sml @ 481:2280193bf298

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Better detection of [let] substitution opportunities
author Adam Chlipala <adamc@hcoop.net>
date Sat, 08 Nov 2008 16:47:04 -0500
parents d34834af4512
children ae03d09043c1
rev   line source
adamc@1 1 (* Copyright (c) 2008, Adam Chlipala
adamc@1 2 * All rights reserved.
adamc@1 3 *
adamc@1 4 * Redistribution and use in source and binary forms, with or without
adamc@1 5 * modification, are permitted provided that the following conditions are met:
adamc@1 6 *
adamc@1 7 * - Redistributions of source code must retain the above copyright notice,
adamc@1 8 * this list of conditions and the following disclaimer.
adamc@1 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@1 10 * this list of conditions and the following disclaimer in the documentation
adamc@1 11 * and/or other materials provided with the distribution.
adamc@1 12 * - The names of contributors may not be used to endorse or promote products
adamc@1 13 * derived from this software without specific prior written permission.
adamc@1 14 *
adamc@1 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@1 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@1 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@1 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@1 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@1 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@1 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@1 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@1 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@1 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@1 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@1 26 *)
adamc@1 27
adamc@244 28 (* Pretty-printing Ur/Web *)
adamc@1 29
adamc@4 30 structure SourcePrint :> SOURCE_PRINT = struct
adamc@1 31
adamc@1 32 open Print.PD
adamc@1 33 open Print
adamc@1 34
adamc@4 35 open Source
adamc@1 36
adamc@1 37 fun p_kind' par (k, _) =
adamc@1 38 case k of
adamc@1 39 KType => string "Type"
adamc@1 40 | KArrow (k1, k2) => parenIf par (box [p_kind' true k1,
adamc@1 41 space,
adamc@1 42 string "->",
adamc@1 43 space,
adamc@1 44 p_kind k2])
adamc@1 45 | KName => string "Name"
adamc@1 46 | KRecord k => box [string "{", p_kind k, string "}"]
adamc@82 47 | KUnit => string "Unit"
adamc@18 48 | KWild => string "_"
adamc@207 49 | KTuple ks => box [string "(",
adamc@207 50 p_list_sep (box [space, string "*", space]) p_kind ks,
adamc@207 51 string ")"]
adamc@1 52
adamc@1 53 and p_kind k = p_kind' false k
adamc@1 54
adamc@1 55 fun p_explicitness e =
adamc@1 56 case e of
adamc@1 57 Explicit => string "::"
adamc@1 58 | Implicit => string ":::"
adamc@1 59
adamc@1 60 fun p_con' par (c, _) =
adamc@1 61 case c of
adamc@1 62 CAnnot (c, k) => box [string "(",
adamc@1 63 p_con c,
adamc@1 64 space,
adamc@1 65 string "::",
adamc@1 66 space,
adamc@1 67 p_kind k,
adamc@1 68 string ")"]
adamc@1 69
adamc@1 70 | TFun (t1, t2) => parenIf par (box [p_con' true t1,
adamc@1 71 space,
adamc@1 72 string "->",
adamc@1 73 space,
adamc@1 74 p_con t2])
adamc@1 75 | TCFun (e, x, k, c) => parenIf par (box [string x,
adamc@1 76 space,
adamc@1 77 p_explicitness e,
adamc@1 78 space,
adamc@1 79 p_kind k,
adamc@1 80 space,
adamc@1 81 string "->",
adamc@1 82 space,
adamc@1 83 p_con c])
adamc@1 84 | TRecord (CRecord xcs, _) => box [string "{",
adamc@1 85 p_list (fn (x, c) =>
adamc@20 86 box [p_name x,
adamc@1 87 space,
adamc@1 88 string ":",
adamc@1 89 space,
adamc@1 90 p_con c]) xcs,
adamc@1 91 string "}"]
adamc@1 92 | TRecord c => box [string "$",
adamc@1 93 p_con' true c]
adamc@1 94
adamc@34 95 | CVar (ss, s) => p_list_sep (string ".") string (ss @ [s])
adamc@1 96 | CApp (c1, c2) => parenIf par (box [p_con c1,
adamc@1 97 space,
adamc@1 98 p_con' true c2])
adamc@67 99 | CAbs (x, NONE, c) => parenIf par (box [string "fn",
adamc@67 100 space,
adamc@67 101 string x,
adamc@67 102 space,
adamc@67 103 string "=>",
adamc@67 104 space,
adamc@67 105 p_con c])
adamc@67 106 | CAbs (x, SOME k, c) => parenIf par (box [string "fn",
adamc@67 107 space,
adamc@67 108 string x,
adamc@67 109 space,
adamc@67 110 string "::",
adamc@67 111 space,
adamc@67 112 p_kind k,
adamc@67 113 space,
adamc@67 114 string "=>",
adamc@67 115 space,
adamc@67 116 p_con c])
adamc@84 117 | CDisjoint (c1, c2, c3) => parenIf par (box [p_con c1,
adamc@84 118 space,
adamc@84 119 string "~",
adamc@84 120 space,
adamc@84 121 p_con c2,
adamc@84 122 space,
adamc@84 123 string "=>",
adamc@84 124 space,
adamc@84 125 p_con c3])
adamc@1 126
adamc@1 127 | CName s => box [string "#", string s]
adamc@1 128
adamc@1 129 | CRecord xcs => box [string "[",
adamc@1 130 p_list (fn (x, c) =>
adamc@1 131 box [p_con x,
adamc@1 132 space,
adamc@1 133 string "=",
adamc@1 134 space,
adamc@1 135 p_con c]) xcs,
adamc@1 136 string "]"]
adamc@1 137 | CConcat (c1, c2) => parenIf par (box [p_con' true c1,
adamc@1 138 space,
adamc@1 139 string "++",
adamc@1 140 space,
adamc@1 141 p_con c2])
adamc@67 142 | CFold => string "fold"
adamc@82 143
adamc@82 144 | CUnit => string "()"
adamc@82 145
adamc@18 146 | CWild k => box [string "(_",
adamc@18 147 space,
adamc@18 148 string "::",
adamc@18 149 space,
adamc@223 150 p_kind k,
adamc@223 151 string ")"]
adamc@207 152
adamc@207 153 | CTuple cs => box [string "(",
adamc@207 154 p_list p_con cs,
adamc@207 155 string ")"]
adamc@207 156 | CProj (c, n) => box [p_con c,
adamc@207 157 string ".",
adamc@207 158 string (Int.toString n)]
adamc@1 159
adamc@1 160 and p_con c = p_con' false c
adamc@1 161
adamc@20 162 and p_name (all as (c, _)) =
adamc@20 163 case c of
adamc@20 164 CName s => string s
adamc@20 165 | _ => p_con all
adamc@20 166
adamc@170 167 fun p_pat' par (p, _) =
adamc@170 168 case p of
adamc@170 169 PWild => string "_"
adamc@170 170 | PVar s => string s
adamc@173 171 | PPrim p => Prim.p_t p
adamc@170 172 | PCon (ms, x, NONE) => p_list_sep (string ".") string (ms @ [x])
adamc@170 173 | PCon (ms, x, SOME p) => parenIf par (box [p_list_sep (string ".") string (ms @ [x]),
adamc@170 174 space,
adamc@170 175 p_pat' true p])
adamc@174 176 | PRecord (xps, flex) =>
adamc@174 177 let
adamc@175 178 val pps = map (fn (x, p) => box [string x, space, string "=", space, p_pat p]) xps
adamc@174 179 in
adamc@174 180 box [string "{",
adamc@174 181 p_list_sep (box [string ",", space]) (fn x => x)
adamc@174 182 (if flex then
adamc@175 183 pps @ [string "..."]
adamc@174 184 else
adamc@175 185 pps),
adamc@174 186 string "}"]
adamc@174 187 end
adamc@170 188
adamc@174 189 and p_pat x = p_pat' false x
adamc@170 190
adamc@8 191 fun p_exp' par (e, _) =
adamc@8 192 case e of
adamc@8 193 EAnnot (e, t) => box [string "(",
adamc@8 194 p_exp e,
adamc@8 195 space,
adamc@8 196 string ":",
adamc@8 197 space,
adamc@8 198 p_con t,
adamc@8 199 string ")"]
adamc@8 200
adamc@14 201 | EPrim p => Prim.p_t p
adamc@403 202 | EVar (ss, s, _) => p_list_sep (string ".") string (ss @ [s])
adamc@8 203 | EApp (e1, e2) => parenIf par (box [p_exp e1,
adamc@8 204 space,
adamc@8 205 p_exp' true e2])
adamc@8 206 | EAbs (x, NONE, e) => parenIf par (box [string "fn",
adamc@8 207 space,
adamc@8 208 string x,
adamc@8 209 space,
adamc@8 210 string "=>",
adamc@8 211 space,
adamc@8 212 p_exp e])
adamc@8 213 | EAbs (x, SOME t, e) => parenIf par (box [string "fn",
adamc@8 214 space,
adamc@8 215 string x,
adamc@8 216 space,
adamc@8 217 string ":",
adamc@8 218 space,
adamc@8 219 p_con t,
adamc@8 220 space,
adamc@8 221 string "=>",
adamc@8 222 space,
adamc@8 223 p_exp e])
adamc@8 224 | ECApp (e, c) => parenIf par (box [p_exp e,
adamc@8 225 space,
adamc@8 226 string "[",
adamc@8 227 p_con c,
adamc@8 228 string "]"])
adamc@8 229 | ECAbs (exp, x, k, e) => parenIf par (box [string "fn",
adamc@8 230 space,
adamc@8 231 string x,
adamc@8 232 space,
adamc@8 233 p_explicitness exp,
adamc@8 234 space,
adamc@8 235 p_kind k,
adamc@8 236 space,
adamc@8 237 string "=>",
adamc@8 238 space,
adamc@8 239 p_exp e])
adamc@85 240 | EDisjoint (c1, c2, e) => parenIf par (box [p_con c1,
adamc@85 241 space,
adamc@85 242 string "~",
adamc@85 243 space,
adamc@85 244 p_con c2,
adamc@85 245 space,
adamc@85 246 string "=>",
adamc@85 247 space,
adamc@85 248 p_exp e])
adamc@8 249
adamc@12 250 | ERecord xes => box [string "{",
adamc@12 251 p_list (fn (x, e) =>
adamc@21 252 box [p_name x,
adamc@12 253 space,
adamc@12 254 string "=",
adamc@12 255 space,
adamc@12 256 p_exp e]) xes,
adamc@12 257 string "}"]
adamc@12 258 | EField (e, c) => box [p_exp' true e,
adamc@12 259 string ".",
adamc@12 260 p_con' true c]
adamc@445 261 | EConcat (e1, e2) => parenIf par (box [p_exp' true e1,
adamc@445 262 space,
adamc@445 263 string "++",
adamc@445 264 space,
adamc@445 265 p_exp' true e2])
adamc@149 266 | ECut (e, c) => parenIf par (box [p_exp' true e,
adamc@149 267 space,
adamc@149 268 string "--",
adamc@149 269 space,
adamc@149 270 p_con' true c])
adamc@71 271 | EFold => string "fold"
adamc@12 272
adamc@170 273 | ECase (e, pes) => parenIf par (box [string "case",
adamc@170 274 space,
adamc@171 275 p_exp e,
adamc@170 276 space,
adamc@170 277 string "of",
adamc@170 278 space,
adamc@170 279 p_list_sep (box [space, string "|", space])
adamc@170 280 (fn (p, e) => box [p_pat p,
adamc@170 281 space,
adamc@170 282 string "=>",
adamc@170 283 space,
adamc@170 284 p_exp e]) pes])
adamc@170 285
adamc@219 286 | EWild => string "_"
adamc@210 287
adamc@446 288 | ELet (ds, e) => box [string "let",
adamc@446 289 newline,
adamc@446 290 box [p_list_sep newline p_edecl ds],
adamc@446 291 newline,
adamc@446 292 string "in",
adamc@446 293 newline,
adamc@446 294 box [p_exp e],
adamc@446 295 newline,
adamc@446 296 string "end"]
adamc@446 297
adamc@8 298 and p_exp e = p_exp' false e
adamc@8 299
adamc@446 300 and p_edecl (d, _) =
adamc@446 301 case d of
adamc@446 302 EDVal vi => box [string "val",
adamc@446 303 space,
adamc@446 304 p_vali vi]
adamc@446 305 | EDValRec vis => box [string "val",
adamc@446 306 space,
adamc@446 307 string "rec",
adamc@446 308 space,
adamc@446 309 p_list_sep (box [newline, string "and", space]) p_vali vis]
adamc@446 310
adamc@446 311 and p_vali (x, co, e) =
adamc@446 312 case co of
adamc@446 313 NONE => box [string x,
adamc@446 314 space,
adamc@446 315 string "=",
adamc@446 316 space,
adamc@446 317 p_exp e]
adamc@446 318 | SOME t => box [string x,
adamc@446 319 space,
adamc@446 320 string ":",
adamc@446 321 space,
adamc@446 322 p_con t,
adamc@446 323 space,
adamc@446 324 string "=",
adamc@446 325 space,
adamc@446 326 p_exp e]
adamc@446 327
adamc@446 328
adamc@191 329 fun p_datatype (x, xs, cons) =
adamc@156 330 box [string "datatype",
adamc@156 331 space,
adamc@156 332 string x,
adamc@191 333 p_list_sep (box []) (fn x => box [space, string x]) xs,
adamc@156 334 space,
adamc@156 335 string "=",
adamc@156 336 space,
adamc@156 337 p_list_sep (box [space, string "|", space])
adamc@156 338 (fn (x, NONE) => string x
adamc@156 339 | (x, SOME t) => box [string x, space, string "of", space, p_con t])
adamc@156 340 cons]
adamc@156 341
adamc@30 342 fun p_sgn_item (sgi, _) =
adamc@30 343 case sgi of
adamc@30 344 SgiConAbs (x, k) => box [string "con",
adamc@30 345 space,
adamc@30 346 string x,
adamc@30 347 space,
adamc@30 348 string "::",
adamc@30 349 space,
adamc@30 350 p_kind k]
adamc@30 351 | SgiCon (x, NONE, c) => box [string "con",
adamc@30 352 space,
adamc@30 353 string x,
adamc@30 354 space,
adamc@30 355 string "=",
adamc@30 356 space,
adamc@30 357 p_con c]
adamc@30 358 | SgiCon (x, SOME k, c) => box [string "con",
adamc@30 359 space,
adamc@30 360 string x,
adamc@30 361 space,
adamc@30 362 string "::",
adamc@30 363 space,
adamc@30 364 p_kind k,
adamc@30 365 space,
adamc@30 366 string "=",
adamc@30 367 space,
adamc@30 368 p_con c]
adamc@156 369 | SgiDatatype x => p_datatype x
adamc@156 370 | SgiDatatypeImp (x, ms, x') =>
adamc@156 371 box [string "datatype",
adamc@156 372 space,
adamc@156 373 string x,
adamc@156 374 space,
adamc@156 375 string "=",
adamc@156 376 space,
adamc@156 377 string "datatype",
adamc@156 378 space,
adamc@156 379 p_list_sep (string ".") string (ms @ [x'])]
adamc@30 380 | SgiVal (x, c) => box [string "val",
adamc@30 381 space,
adamc@30 382 string x,
adamc@30 383 space,
adamc@30 384 string ":",
adamc@30 385 space,
adamc@30 386 p_con c]
adamc@30 387 | SgiStr (x, sgn) => box [string "structure",
adamc@30 388 space,
adamc@30 389 string x,
adamc@30 390 space,
adamc@30 391 string ":",
adamc@30 392 space,
adamc@30 393 p_sgn sgn]
adamc@59 394 | SgiSgn (x, sgn) => box [string "signature",
adamc@59 395 space,
adamc@59 396 string x,
adamc@59 397 space,
adamc@59 398 string "=",
adamc@59 399 space,
adamc@59 400 p_sgn sgn]
adamc@58 401 | SgiInclude sgn => box [string "include",
adamc@58 402 space,
adamc@58 403 p_sgn sgn]
adamc@88 404 | SgiConstraint (c1, c2) => box [string "constraint",
adamc@88 405 space,
adamc@88 406 p_con c1,
adamc@88 407 space,
adamc@88 408 string "~",
adamc@88 409 space,
adamc@88 410 p_con c2]
adamc@211 411 | SgiClassAbs x => box [string "class",
adamc@211 412 space,
adamc@211 413 string x]
adamc@211 414 | SgiClass (x, c) => box [string "class",
adamc@211 415 space,
adamc@211 416 string x,
adamc@211 417 space,
adamc@211 418 string "=",
adamc@211 419 space,
adamc@211 420 p_con c]
adamc@30 421
adamc@30 422 and p_sgn (sgn, _) =
adamc@30 423 case sgn of
adamc@30 424 SgnConst sgis => box [string "sig",
adamc@30 425 newline,
adamc@30 426 p_list_sep newline p_sgn_item sgis,
adamc@30 427 newline,
adamc@30 428 string "end"]
adamc@30 429 | SgnVar x => string x
adamc@40 430 | SgnFun (x, sgn, sgn') => box [string "functor",
adamc@40 431 space,
adamc@40 432 string "(",
adamc@40 433 string x,
adamc@40 434 space,
adamc@40 435 string ":",
adamc@40 436 p_sgn sgn,
adamc@40 437 string ")",
adamc@40 438 space,
adamc@40 439 string ":",
adamc@40 440 space,
adamc@40 441 p_sgn sgn']
adamc@42 442 | SgnWhere (sgn, x, c) => box [p_sgn sgn,
adamc@42 443 space,
adamc@42 444 string "where",
adamc@42 445 space,
adamc@42 446 string "con",
adamc@42 447 space,
adamc@42 448 string x,
adamc@42 449 space,
adamc@42 450 string "=",
adamc@42 451 space,
adamc@42 452 p_con c]
adamc@59 453 | SgnProj (m, ms, x) => p_list_sep (string ".") string (m :: ms @ [x])
adamc@59 454
adamc@42 455
adamc@123 456
adamc@1 457 fun p_decl ((d, _) : decl) =
adamc@1 458 case d of
adamc@1 459 DCon (x, NONE, c) => box [string "con",
adamc@1 460 space,
adamc@1 461 string x,
adamc@1 462 space,
adamc@1 463 string "=",
adamc@1 464 space,
adamc@1 465 p_con c]
adamc@1 466 | DCon (x, SOME k, c) => box [string "con",
adamc@1 467 space,
adamc@1 468 string x,
adamc@1 469 space,
adamc@1 470 string "::",
adamc@1 471 space,
adamc@1 472 p_kind k,
adamc@1 473 space,
adamc@1 474 string "=",
adamc@1 475 space,
adamc@1 476 p_con c]
adamc@156 477 | DDatatype x => p_datatype x
adamc@156 478 | DDatatypeImp (x, ms, x') =>
adamc@156 479 box [string "datatype",
adamc@156 480 space,
adamc@156 481 string x,
adamc@156 482 space,
adamc@156 483 string "=",
adamc@156 484 space,
adamc@156 485 string "datatype",
adamc@156 486 space,
adamc@156 487 p_list_sep (string ".") string (ms @ [x'])]
adamc@123 488 | DVal vi => box [string "val",
adamc@123 489 space,
adamc@123 490 p_vali vi]
adamc@123 491 | DValRec vis => box [string "val",
adamc@123 492 space,
adamc@123 493 string "rec",
adamc@123 494 space,
adamc@123 495 p_list_sep (box [newline, string "and", space]) p_vali vis]
adamc@1 496
adamc@30 497 | DSgn (x, sgn) => box [string "signature",
adamc@30 498 space,
adamc@30 499 string x,
adamc@30 500 space,
adamc@30 501 string "=",
adamc@30 502 space,
adamc@30 503 p_sgn sgn]
adamc@30 504 | DStr (x, NONE, str) => box [string "structure",
adamc@30 505 space,
adamc@30 506 string x,
adamc@30 507 space,
adamc@30 508 string "=",
adamc@30 509 space,
adamc@30 510 p_str str]
adamc@30 511 | DStr (x, SOME sgn, str) => box [string "structure",
adamc@30 512 space,
adamc@30 513 string x,
adamc@30 514 space,
adamc@30 515 string ":",
adamc@30 516 space,
adamc@30 517 p_sgn sgn,
adamc@30 518 space,
adamc@30 519 string "=",
adamc@30 520 space,
adamc@30 521 p_str str]
adamc@48 522 | DFfiStr (x, sgn) => box [string "extern",
adamc@48 523 space,
adamc@48 524 string "structure",
adamc@48 525 space,
adamc@48 526 string x,
adamc@48 527 space,
adamc@48 528 string ":",
adamc@48 529 space,
adamc@48 530 p_sgn sgn]
adamc@61 531 | DOpen (m, ms) => box [string "open",
adamc@61 532 space,
adamc@61 533 p_list_sep (string ".") string (m :: ms)]
adamc@88 534 | DConstraint (c1, c2) => box [string "constraint",
adamc@88 535 space,
adamc@88 536 p_con c1,
adamc@88 537 space,
adamc@88 538 string "~",
adamc@88 539 space,
adamc@88 540 p_con c2]
adamc@88 541 | DOpenConstraints (m, ms) => box [string "open",
adamc@88 542 space,
adamc@88 543 string "constraints",
adamc@88 544 space,
adamc@88 545 p_list_sep (string ".") string (m :: ms)]
adamc@30 546
adamc@109 547 | DExport str => box [string "export",
adamc@109 548 space,
adamc@109 549 p_str str]
adamc@203 550 | DTable (x, c) => box [string "table",
adamc@203 551 space,
adamc@203 552 string x,
adamc@203 553 space,
adamc@203 554 string ":",
adamc@203 555 space,
adamc@203 556 p_con c]
adamc@338 557 | DSequence x => box [string "sequence",
adamc@338 558 space,
adamc@338 559 string x]
adamc@211 560 | DClass (x, c) => box [string "class",
adamc@211 561 space,
adamc@211 562 string x,
adamc@211 563 space,
adamc@211 564 string "=",
adamc@211 565 space,
adamc@211 566 p_con c]
adamc@100 567
adamc@271 568 | DDatabase s => box [string "database",
adamc@271 569 space,
adamc@271 570 string s]
adamc@271 571
adamc@459 572 | DCookie (x, c) => box [string "cookie",
adamc@459 573 space,
adamc@459 574 string x,
adamc@459 575 space,
adamc@459 576 string ":",
adamc@459 577 space,
adamc@459 578 p_con c]
adamc@459 579
adamc@30 580 and p_str (str, _) =
adamc@30 581 case str of
adamc@30 582 StrConst ds => box [string "struct",
adamc@30 583 newline,
adamc@30 584 p_list_sep newline p_decl ds,
adamc@30 585 newline,
adamc@30 586 string "end"]
adamc@30 587 | StrVar x => string x
adamc@34 588 | StrProj (str, x) => box [p_str str,
adamc@34 589 string ".",
adamc@34 590 string x]
adamc@40 591 | StrFun (x, sgn, NONE, str) => box [string "functor",
adamc@40 592 space,
adamc@40 593 string "(",
adamc@40 594 string x,
adamc@40 595 space,
adamc@40 596 string ":",
adamc@40 597 p_sgn sgn,
adamc@40 598 string ")",
adamc@40 599 space,
adamc@40 600 string "=>",
adamc@40 601 space,
adamc@40 602 p_str str]
adamc@40 603 | StrFun (x, sgn, SOME sgn', str) => box [string "functor",
adamc@40 604 space,
adamc@40 605 string "(",
adamc@40 606 string x,
adamc@40 607 space,
adamc@40 608 string ":",
adamc@40 609 p_sgn sgn,
adamc@40 610 string ")",
adamc@40 611 space,
adamc@40 612 string ":",
adamc@40 613 space,
adamc@40 614 p_sgn sgn',
adamc@40 615 space,
adamc@40 616 string "=>",
adamc@40 617 space,
adamc@40 618 p_str str]
adamc@44 619 | StrApp (str1, str2) => box [p_str str1,
adamc@44 620 string "(",
adamc@44 621 p_str str2,
adamc@44 622 string ")"]
adamc@30 623
adamc@1 624 val p_file = p_list_sep newline p_decl
adamc@1 625
adamc@1 626 end