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annotate src/elab_print.sml @ 175:b2d752455182

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Elaborating record patterns
author Adam Chlipala <adamc@hcoop.net>
date Thu, 31 Jul 2008 13:08:57 -0400
parents 8221b95cc24c
children 33d4a8eea484
rev   line source
adamc@3 1 (* Copyright (c) 2008, Adam Chlipala
adamc@3 2 * All rights reserved.
adamc@3 3 *
adamc@3 4 * Redistribution and use in source and binary forms, with or without
adamc@3 5 * modification, are permitted provided that the following conditions are met:
adamc@3 6 *
adamc@3 7 * - Redistributions of source code must retain the above copyright notice,
adamc@3 8 * this list of conditions and the following disclaimer.
adamc@3 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@3 10 * this list of conditions and the following disclaimer in the documentation
adamc@3 11 * and/or other materials provided with the distribution.
adamc@3 12 * - The names of contributors may not be used to endorse or promote products
adamc@3 13 * derived from this software without specific prior written permission.
adamc@3 14 *
adamc@3 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@3 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@3 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@3 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@3 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@3 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@3 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@3 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@3 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@3 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@3 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@3 26 *)
adamc@3 27
adamc@3 28 (* Pretty-printing elaborated Laconic/Web *)
adamc@3 29
adamc@3 30 structure ElabPrint :> ELAB_PRINT = struct
adamc@3 31
adamc@3 32 open Print.PD
adamc@3 33 open Print
adamc@3 34
adamc@3 35 open Elab
adamc@3 36
adamc@3 37 structure E = ElabEnv
adamc@3 38
adamc@11 39 val debug = ref false
adamc@11 40
adamc@3 41 fun p_kind' par (k, _) =
adamc@3 42 case k of
adamc@3 43 KType => string "Type"
adamc@3 44 | KArrow (k1, k2) => parenIf par (box [p_kind' true k1,
adamc@3 45 space,
adamc@3 46 string "->",
adamc@3 47 space,
adamc@3 48 p_kind k2])
adamc@3 49 | KName => string "Name"
adamc@3 50 | KRecord k => box [string "{", p_kind k, string "}"]
adamc@82 51 | KUnit => string "Unit"
adamc@3 52
adamc@3 53 | KError => string "<ERROR>"
adamc@76 54 | KUnif (_, _, ref (SOME k)) => p_kind' par k
adamc@76 55 | KUnif (_, s, _) => string ("<UNIF:" ^ s ^ ">")
adamc@3 56
adamc@3 57 and p_kind k = p_kind' false k
adamc@3 58
adamc@3 59 fun p_explicitness e =
adamc@3 60 case e of
adamc@3 61 Explicit => string "::"
adamc@3 62 | Implicit => string ":::"
adamc@3 63
adamc@3 64 fun p_con' par env (c, _) =
adamc@3 65 case c of
adamc@3 66 TFun (t1, t2) => parenIf par (box [p_con' true env t1,
adamc@3 67 space,
adamc@3 68 string "->",
adamc@3 69 space,
adamc@3 70 p_con env t2])
adamc@3 71 | TCFun (e, x, k, c) => parenIf par (box [string x,
adamc@3 72 space,
adamc@3 73 p_explicitness e,
adamc@3 74 space,
adamc@3 75 p_kind k,
adamc@3 76 space,
adamc@3 77 string "->",
adamc@3 78 space,
adamc@3 79 p_con (E.pushCRel env x k) c])
adamc@85 80 | TDisjoint (c1, c2, c3) => parenIf par (box [p_con env c1,
adamc@85 81 space,
adamc@85 82 string "~",
adamc@85 83 space,
adamc@85 84 p_con env c2,
adamc@85 85 space,
adamc@85 86 string "->",
adamc@85 87 space,
adamc@85 88 p_con env c3])
adamc@3 89 | TRecord (CRecord (_, xcs), _) => box [string "{",
adamc@3 90 p_list (fn (x, c) =>
adamc@20 91 box [p_name env x,
adamc@3 92 space,
adamc@3 93 string ":",
adamc@3 94 space,
adamc@3 95 p_con env c]) xcs,
adamc@3 96 string "}"]
adamc@3 97 | TRecord c => box [string "$",
adamc@3 98 p_con' true env c]
adamc@3 99
adamc@11 100 | CRel n =>
adamc@71 101 ((if !debug then
adamc@71 102 string (#1 (E.lookupCRel env n) ^ "_" ^ Int.toString n)
adamc@71 103 else
adamc@71 104 string (#1 (E.lookupCRel env n)))
adamc@71 105 handle E.UnboundRel _ => string ("UNBOUND_REL" ^ Int.toString n))
adamc@11 106 | CNamed n =>
adamc@34 107 ((if !debug then
adamc@34 108 string (#1 (E.lookupCNamed env n) ^ "__" ^ Int.toString n)
adamc@34 109 else
adamc@34 110 string (#1 (E.lookupCNamed env n)))
adamc@34 111 handle E.UnboundNamed _ => string ("UNBOUND_NAMED" ^ Int.toString n))
adamc@34 112 | CModProj (m1, ms, x) =>
adamc@34 113 let
adamc@88 114 val m1x = #1 (E.lookupStrNamed env m1)
adamc@88 115 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@88 116
adamc@34 117 val m1s = if !debug then
adamc@34 118 m1x ^ "__" ^ Int.toString m1
adamc@34 119 else
adamc@34 120 m1x
adamc@34 121 in
adamc@34 122 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@88 123 end
adamc@3 124
adamc@3 125 | CApp (c1, c2) => parenIf par (box [p_con env c1,
adamc@3 126 space,
adamc@3 127 p_con' true env c2])
adamc@147 128 | CAbs (x, k, c) => parenIf true (box [string "fn",
adamc@147 129 space,
adamc@147 130 string x,
adamc@147 131 space,
adamc@147 132 string "::",
adamc@147 133 space,
adamc@147 134 p_kind k,
adamc@147 135 space,
adamc@147 136 string "=>",
adamc@147 137 space,
adamc@147 138 p_con (E.pushCRel env x k) c])
adamc@84 139 | CDisjoint (c1, c2, c3) => parenIf par (box [p_con env c1,
adamc@84 140 space,
adamc@84 141 string "~",
adamc@84 142 space,
adamc@84 143 p_con env c2,
adamc@84 144 space,
adamc@84 145 string "=>",
adamc@84 146 space,
adamc@84 147 p_con env c3])
adamc@3 148
adamc@3 149 | CName s => box [string "#", string s]
adamc@3 150
adamc@12 151 | CRecord (k, xcs) =>
adamc@12 152 if !debug then
adamc@12 153 parenIf par (box [string "[",
adamc@12 154 p_list (fn (x, c) =>
adamc@12 155 box [p_con env x,
adamc@12 156 space,
adamc@12 157 string "=",
adamc@12 158 space,
adamc@12 159 p_con env c]) xcs,
adamc@12 160 string "]::",
adamc@12 161 p_kind k])
adamc@12 162 else
adamc@12 163 parenIf par (box [string "[",
adamc@12 164 p_list (fn (x, c) =>
adamc@12 165 box [p_con env x,
adamc@12 166 space,
adamc@12 167 string "=",
adamc@12 168 space,
adamc@12 169 p_con env c]) xcs,
adamc@12 170 string "]"])
adamc@3 171 | CConcat (c1, c2) => parenIf par (box [p_con' true env c1,
adamc@3 172 space,
adamc@3 173 string "++",
adamc@3 174 space,
adamc@3 175 p_con env c2])
adamc@67 176 | CFold _ => string "fold"
adamc@3 177
adamc@82 178 | CUnit => string "()"
adamc@82 179
adamc@3 180 | CError => string "<ERROR>"
adamc@76 181 | CUnif (_, _, _, ref (SOME c)) => p_con' par env c
adamc@76 182 | CUnif (_, k, s, _) => box [string ("<UNIF:" ^ s ^ "::"),
adamc@76 183 p_kind k,
adamc@76 184 string ">"]
adamc@3 185
adamc@3 186 and p_con env = p_con' false env
adamc@3 187
adamc@20 188 and p_name env (all as (c, _)) =
adamc@20 189 case c of
adamc@20 190 CName s => string s
adamc@20 191 | _ => p_con env all
adamc@20 192
adamc@171 193 fun p_patCon env pc =
adamc@171 194 case pc of
adamc@171 195 PConVar n =>
adamc@171 196 ((if !debug then
adamc@171 197 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
adamc@171 198 else
adamc@171 199 string (#1 (E.lookupENamed env n)))
adamc@171 200 handle E.UnboundRel _ => string ("UNBOUND_NAMED" ^ Int.toString n))
adamc@171 201 | PConProj (m1, ms, x) =>
adamc@171 202 let
adamc@171 203 val m1x = #1 (E.lookupStrNamed env m1)
adamc@171 204 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@171 205
adamc@171 206 val m1s = if !debug then
adamc@171 207 m1x ^ "__" ^ Int.toString m1
adamc@171 208 else
adamc@171 209 m1x
adamc@171 210 in
adamc@171 211 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@171 212 end
adamc@171 213
adamc@171 214 fun p_pat' par env (p, _) =
adamc@171 215 case p of
adamc@171 216 PWild => string "_"
adamc@171 217 | PVar s => string s
adamc@173 218 | PPrim p => Prim.p_t p
adamc@171 219 | PCon (pc, NONE) => p_patCon env pc
adamc@171 220 | PCon (pc, SOME p) => parenIf par (box [p_patCon env pc,
adamc@171 221 space,
adamc@171 222 p_pat' true env p])
adamc@175 223 | PRecord (xps, flex) =>
adamc@175 224 let
adamc@175 225 val pps = map (fn (x, p) => box [string x, space, string "=", space, p_pat env p]) xps
adamc@175 226 in
adamc@175 227 box [string "{",
adamc@175 228 p_list_sep (box [string ",", space]) (fn x => x)
adamc@175 229 (case flex of
adamc@175 230 NONE => pps
adamc@175 231 | SOME _ => pps @ [string "..."]),
adamc@175 232 string "}"]
adamc@175 233 end
adamc@171 234
adamc@175 235 and p_pat x = p_pat' false x
adamc@171 236
adamc@9 237 fun p_exp' par env (e, _) =
adamc@9 238 case e of
adamc@14 239 EPrim p => Prim.p_t p
adamc@14 240 | ERel n =>
adamc@88 241 ((if !debug then
adamc@88 242 string (#1 (E.lookupERel env n) ^ "_" ^ Int.toString n)
adamc@88 243 else
adamc@88 244 string (#1 (E.lookupERel env n)))
adamc@88 245 handle E.UnboundRel _ => string ("UNBOUND_REL" ^ Int.toString n))
adamc@11 246 | ENamed n =>
adamc@88 247 ((if !debug then
adamc@88 248 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
adamc@88 249 else
adamc@88 250 string (#1 (E.lookupENamed env n)))
adamc@88 251 handle E.UnboundRel _ => string ("UNBOUND_NAMED" ^ Int.toString n))
adamc@34 252 | EModProj (m1, ms, x) =>
adamc@34 253 let
adamc@88 254 val m1x = #1 (E.lookupStrNamed env m1)
adamc@88 255 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@88 256
adamc@34 257 val m1s = if !debug then
adamc@34 258 m1x ^ "__" ^ Int.toString m1
adamc@34 259 else
adamc@34 260 m1x
adamc@34 261 in
adamc@34 262 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@34 263 end
adamc@34 264
adamc@9 265 | EApp (e1, e2) => parenIf par (box [p_exp env e1,
adamc@9 266 space,
adamc@9 267 p_exp' true env e2])
adamc@26 268 | EAbs (x, t, _, e) => parenIf par (box [string "fn",
adamc@26 269 space,
adamc@26 270 string x,
adamc@26 271 space,
adamc@26 272 string ":",
adamc@26 273 space,
adamc@26 274 p_con env t,
adamc@26 275 space,
adamc@26 276 string "=>",
adamc@26 277 space,
adamc@26 278 p_exp (E.pushERel env x t) e])
adamc@9 279 | ECApp (e, c) => parenIf par (box [p_exp env e,
adamc@9 280 space,
adamc@9 281 string "[",
adamc@9 282 p_con env c,
adamc@9 283 string "]"])
adamc@9 284 | ECAbs (exp, x, k, e) => parenIf par (box [string "fn",
adamc@9 285 space,
adamc@9 286 string x,
adamc@9 287 space,
adamc@9 288 p_explicitness exp,
adamc@9 289 space,
adamc@9 290 p_kind k,
adamc@9 291 space,
adamc@9 292 string "=>",
adamc@9 293 space,
adamc@9 294 p_exp (E.pushCRel env x k) e])
adamc@9 295
adamc@12 296 | ERecord xes => box [string "{",
adamc@29 297 p_list (fn (x, e, _) =>
adamc@21 298 box [p_name env x,
adamc@12 299 space,
adamc@12 300 string "=",
adamc@12 301 space,
adamc@12 302 p_exp env e]) xes,
adamc@12 303 string "}"]
adamc@12 304 | EField (e, c, {field, rest}) =>
adamc@12 305 if !debug then
adamc@12 306 box [p_exp' true env e,
adamc@12 307 string ".",
adamc@12 308 p_con' true env c,
adamc@12 309 space,
adamc@12 310 string "[",
adamc@12 311 p_con env field,
adamc@12 312 space,
adamc@12 313 string " in ",
adamc@12 314 space,
adamc@12 315 p_con env rest,
adamc@12 316 string "]"]
adamc@12 317 else
adamc@12 318 box [p_exp' true env e,
adamc@12 319 string ".",
adamc@12 320 p_con' true env c]
adamc@149 321 | ECut (e, c, {field, rest}) =>
adamc@149 322 parenIf par (if !debug then
adamc@149 323 box [p_exp' true env e,
adamc@149 324 space,
adamc@149 325 string "--",
adamc@149 326 space,
adamc@149 327 p_con' true env c,
adamc@149 328 space,
adamc@149 329 string "[",
adamc@149 330 p_con env field,
adamc@149 331 space,
adamc@149 332 string " in ",
adamc@149 333 space,
adamc@149 334 p_con env rest,
adamc@149 335 string "]"]
adamc@149 336 else
adamc@149 337 box [p_exp' true env e,
adamc@149 338 space,
adamc@149 339 string "--",
adamc@149 340 space,
adamc@149 341 p_con' true env c])
adamc@72 342 | EFold _ => string "fold"
adamc@71 343
adamc@171 344 | ECase (e, pes, _) => parenIf par (box [string "case",
adamc@171 345 space,
adamc@171 346 p_exp env e,
adamc@171 347 space,
adamc@171 348 string "of",
adamc@171 349 space,
adamc@171 350 p_list_sep (box [space, string "|", space])
adamc@171 351 (fn (p, e) => box [p_pat env p,
adamc@171 352 space,
adamc@171 353 string "=>",
adamc@171 354 space,
adamc@171 355 p_exp env e]) pes])
adamc@171 356
adamc@9 357 | EError => string "<ERROR>"
adamc@9 358
adamc@9 359 and p_exp env = p_exp' false env
adamc@9 360
adamc@31 361 fun p_named x n =
adamc@31 362 if !debug then
adamc@31 363 box [string x,
adamc@31 364 string "__",
adamc@31 365 string (Int.toString n)]
adamc@31 366 else
adamc@31 367 string x
adamc@31 368
adamc@156 369 fun p_datatype env (x, n, cons) =
adamc@156 370 let
adamc@156 371 val env = E.pushCNamedAs env x n (KType, ErrorMsg.dummySpan) NONE
adamc@156 372 in
adamc@156 373 box [string "datatype",
adamc@156 374 space,
adamc@156 375 string x,
adamc@156 376 space,
adamc@156 377 string "=",
adamc@156 378 space,
adamc@156 379 p_list_sep (box [space, string "|", space])
adamc@156 380 (fn (x, _, NONE) => string x
adamc@156 381 | (x, _, SOME t) => box [string x, space, string "of", space, p_con env t])
adamc@156 382 cons]
adamc@156 383 end
adamc@156 384
adamc@31 385 fun p_sgn_item env (sgi, _) =
adamc@31 386 case sgi of
adamc@31 387 SgiConAbs (x, n, k) => box [string "con",
adamc@31 388 space,
adamc@31 389 p_named x n,
adamc@31 390 space,
adamc@31 391 string "::",
adamc@31 392 space,
adamc@31 393 p_kind k]
adamc@31 394 | SgiCon (x, n, k, c) => box [string "con",
adamc@31 395 space,
adamc@31 396 p_named x n,
adamc@31 397 space,
adamc@31 398 string "::",
adamc@31 399 space,
adamc@31 400 p_kind k,
adamc@31 401 space,
adamc@31 402 string "=",
adamc@31 403 space,
adamc@31 404 p_con env c]
adamc@156 405 | SgiDatatype x => p_datatype env x
adamc@162 406 | SgiDatatypeImp (x, _, m1, ms, x', _) =>
adamc@156 407 let
adamc@156 408 val m1x = #1 (E.lookupStrNamed env m1)
adamc@156 409 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@156 410 in
adamc@156 411 box [string "datatype",
adamc@156 412 space,
adamc@156 413 string x,
adamc@156 414 space,
adamc@156 415 string "=",
adamc@156 416 space,
adamc@156 417 string "datatype",
adamc@156 418 space,
adamc@156 419 p_list_sep (string ".") string (m1x :: ms @ [x'])]
adamc@156 420 end
adamc@31 421 | SgiVal (x, n, c) => box [string "val",
adamc@31 422 space,
adamc@31 423 p_named x n,
adamc@31 424 space,
adamc@31 425 string ":",
adamc@31 426 space,
adamc@31 427 p_con env c]
adamc@31 428 | SgiStr (x, n, sgn) => box [string "structure",
adamc@31 429 space,
adamc@31 430 p_named x n,
adamc@31 431 space,
adamc@31 432 string ":",
adamc@31 433 space,
adamc@31 434 p_sgn env sgn]
adamc@59 435 | SgiSgn (x, n, sgn) => box [string "signature",
adamc@59 436 space,
adamc@59 437 p_named x n,
adamc@59 438 space,
adamc@59 439 string "=",
adamc@59 440 space,
adamc@59 441 p_sgn env sgn]
adamc@88 442 | SgiConstraint (c1, c2) => box [string "constraint",
adamc@88 443 space,
adamc@88 444 p_con env c1,
adamc@88 445 space,
adamc@88 446 string "~",
adamc@88 447 space,
adamc@88 448 p_con env c2]
adamc@31 449
adamc@31 450 and p_sgn env (sgn, _) =
adamc@31 451 case sgn of
adamc@31 452 SgnConst sgis => box [string "sig",
adamc@31 453 newline,
adamc@32 454 let
adamc@32 455 val (psgis, _) = ListUtil.foldlMap (fn (sgi, env) =>
adamc@32 456 (p_sgn_item env sgi,
adamc@32 457 E.sgiBinds env sgi))
adamc@32 458 env sgis
adamc@32 459 in
adamc@32 460 p_list_sep newline (fn x => x) psgis
adamc@32 461 end,
adamc@31 462 newline,
adamc@31 463 string "end"]
adamc@88 464 | SgnVar n => ((string (#1 (E.lookupSgnNamed env n)))
adamc@88 465 handle E.UnboundNamed _ => string ("UNBOUND_SGN_" ^ Int.toString n))
adamc@41 466 | SgnFun (x, n, sgn, sgn') => box [string "functor",
adamc@41 467 space,
adamc@41 468 string "(",
adamc@41 469 string x,
adamc@41 470 space,
adamc@41 471 string ":",
adamc@41 472 space,
adamc@41 473 p_sgn env sgn,
adamc@41 474 string ")",
adamc@41 475 space,
adamc@41 476 string ":",
adamc@41 477 space,
adamc@41 478 p_sgn (E.pushStrNamedAs env x n sgn) sgn']
adamc@42 479 | SgnWhere (sgn, x, c) => box [p_sgn env sgn,
adamc@42 480 space,
adamc@42 481 string "where",
adamc@42 482 space,
adamc@42 483 string "con",
adamc@42 484 space,
adamc@42 485 string x,
adamc@42 486 space,
adamc@42 487 string "=",
adamc@42 488 space,
adamc@42 489 p_con env c]
adamc@59 490 | SgnProj (m1, ms, x) =>
adamc@59 491 let
adamc@88 492 val m1x = #1 (E.lookupStrNamed env m1)
adamc@88 493 handle E.UnboundNamed _ => "UNBOUND_SGN_" ^ Int.toString m1
adamc@88 494
adamc@59 495 val m1s = if !debug then
adamc@59 496 m1x ^ "__" ^ Int.toString m1
adamc@59 497 else
adamc@59 498 m1x
adamc@88 499 in
adamc@59 500 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@59 501 end
adamc@31 502 | SgnError => string "<ERROR>"
adamc@31 503
adamc@123 504 fun p_vali env (x, n, t, e) = box [p_named x n,
adamc@123 505 space,
adamc@123 506 string ":",
adamc@123 507 space,
adamc@123 508 p_con env t,
adamc@123 509 space,
adamc@123 510 string "=",
adamc@123 511 space,
adamc@123 512 p_exp env e]
adamc@123 513
adamc@123 514 fun p_decl env (dAll as (d, _) : decl) =
adamc@3 515 case d of
adamc@31 516 DCon (x, n, k, c) => box [string "con",
adamc@31 517 space,
adamc@31 518 p_named x n,
adamc@31 519 space,
adamc@31 520 string "::",
adamc@31 521 space,
adamc@31 522 p_kind k,
adamc@31 523 space,
adamc@31 524 string "=",
adamc@31 525 space,
adamc@31 526 p_con env c]
adamc@156 527 | DDatatype x => p_datatype env x
adamc@162 528 | DDatatypeImp (x, _, m1, ms, x', _) =>
adamc@156 529 let
adamc@156 530 val m1x = #1 (E.lookupStrNamed env m1)
adamc@156 531 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@156 532 in
adamc@156 533 box [string "datatype",
adamc@156 534 space,
adamc@156 535 string x,
adamc@156 536 space,
adamc@156 537 string "=",
adamc@156 538 space,
adamc@156 539 string "datatype",
adamc@156 540 space,
adamc@156 541 p_list_sep (string ".") string (m1x :: ms @ [x'])]
adamc@156 542 end
adamc@123 543 | DVal vi => box [string "val",
adamc@123 544 space,
adamc@123 545 p_vali env vi]
adamc@123 546 | DValRec vis =>
adamc@123 547 let
adamc@123 548 val env = E.declBinds env dAll
adamc@123 549 in
adamc@123 550 box [string "val",
adamc@123 551 space,
adamc@123 552 string "rec",
adamc@123 553 space,
adamc@123 554 p_list_sep (box [newline, string "and", space]) (p_vali env) vis]
adamc@123 555 end
adamc@31 556
adamc@31 557 | DSgn (x, n, sgn) => box [string "signature",
adamc@31 558 space,
adamc@31 559 p_named x n,
adamc@31 560 space,
adamc@31 561 string "=",
adamc@31 562 space,
adamc@31 563 p_sgn env sgn]
adamc@31 564 | DStr (x, n, sgn, str) => box [string "structure",
adamc@31 565 space,
adamc@31 566 p_named x n,
adamc@31 567 space,
adamc@31 568 string ":",
adamc@31 569 space,
adamc@31 570 p_sgn env sgn,
adamc@31 571 space,
adamc@31 572 string "=",
adamc@31 573 space,
adamc@31 574 p_str env str]
adamc@48 575 | DFfiStr (x, n, sgn) => box [string "extern",
adamc@48 576 space,
adamc@48 577 string "structure",
adamc@48 578 space,
adamc@48 579 p_named x n,
adamc@48 580 space,
adamc@48 581 string ":",
adamc@48 582 space,
adamc@48 583 p_sgn env sgn]
adamc@88 584 | DConstraint (c1, c2) => box [string "constraint",
adamc@88 585 space,
adamc@88 586 p_con env c1,
adamc@88 587 space,
adamc@88 588 string "~",
adamc@88 589 space,
adamc@88 590 p_con env c2]
adamc@109 591 | DExport (_, sgn, str) => box [string "export",
adamc@110 592 space,
adamc@109 593 p_str env str,
adamc@109 594 space,
adamc@109 595 string ":",
adamc@109 596 space,
adamc@109 597 p_sgn env sgn]
adamc@31 598
adamc@31 599 and p_str env (str, _) =
adamc@31 600 case str of
adamc@31 601 StrConst ds => box [string "struct",
adamc@31 602 newline,
adamc@32 603 p_file env ds,
adamc@31 604 newline,
adamc@31 605 string "end"]
adamc@88 606 | StrVar n => ((string (#1 (E.lookupStrNamed env n)))
adamc@88 607 handle E.UnboundNamed _ => string ("UNBOUND_STR_" ^ Int.toString n))
adamc@34 608 | StrProj (str, s) => box [p_str env str,
adamc@34 609 string ".",
adamc@34 610 string s]
adamc@41 611 | StrFun (x, n, sgn, sgn', str) =>
adamc@41 612 let
adamc@41 613 val env' = E.pushStrNamedAs env x n sgn
adamc@41 614 in
adamc@41 615 box [string "functor",
adamc@41 616 space,
adamc@41 617 string "(",
adamc@41 618 string x,
adamc@41 619 space,
adamc@41 620 string ":",
adamc@41 621 space,
adamc@41 622 p_sgn env sgn,
adamc@41 623 string ")",
adamc@41 624 space,
adamc@41 625 string ":",
adamc@41 626 space,
adamc@41 627 p_sgn env' sgn',
adamc@41 628 space,
adamc@41 629 string "=>",
adamc@41 630 space,
adamc@41 631 p_str env' str]
adamc@41 632 end
adamc@44 633 | StrApp (str1, str2) => box [p_str env str1,
adamc@44 634 string "(",
adamc@44 635 p_str env str2,
adamc@44 636 string ")"]
adamc@31 637 | StrError => string "<ERROR>"
adamc@3 638
adamc@32 639 and p_file env file =
adamc@3 640 let
adamc@31 641 val (pds, _) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 642 (p_decl env d,
adamc@31 643 E.declBinds env d))
adamc@31 644 env file
adamc@3 645 in
adamc@3 646 p_list_sep newline (fn x => x) pds
adamc@3 647 end
adamc@3 648
adamc@3 649 end