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annotate src/elab_print.sml @ 171:c7a6e6dbc318

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Elaborating some basic pattern matching
author Adam Chlipala <adamc@hcoop.net>
date Thu, 31 Jul 2008 10:06:27 -0400
parents 06a98129b23f
children 8221b95cc24c
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@171 218 | PCon (pc, NONE) => p_patCon env pc
adamc@171 219 | PCon (pc, SOME p) => parenIf par (box [p_patCon env pc,
adamc@171 220 space,
adamc@171 221 p_pat' true env p])
adamc@171 222
adamc@171 223 val p_pat = p_pat' false
adamc@171 224
adamc@9 225 fun p_exp' par env (e, _) =
adamc@9 226 case e of
adamc@14 227 EPrim p => Prim.p_t p
adamc@14 228 | ERel n =>
adamc@88 229 ((if !debug then
adamc@88 230 string (#1 (E.lookupERel env n) ^ "_" ^ Int.toString n)
adamc@88 231 else
adamc@88 232 string (#1 (E.lookupERel env n)))
adamc@88 233 handle E.UnboundRel _ => string ("UNBOUND_REL" ^ Int.toString n))
adamc@11 234 | ENamed n =>
adamc@88 235 ((if !debug then
adamc@88 236 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
adamc@88 237 else
adamc@88 238 string (#1 (E.lookupENamed env n)))
adamc@88 239 handle E.UnboundRel _ => string ("UNBOUND_NAMED" ^ Int.toString n))
adamc@34 240 | EModProj (m1, ms, x) =>
adamc@34 241 let
adamc@88 242 val m1x = #1 (E.lookupStrNamed env m1)
adamc@88 243 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@88 244
adamc@34 245 val m1s = if !debug then
adamc@34 246 m1x ^ "__" ^ Int.toString m1
adamc@34 247 else
adamc@34 248 m1x
adamc@34 249 in
adamc@34 250 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@34 251 end
adamc@34 252
adamc@9 253 | EApp (e1, e2) => parenIf par (box [p_exp env e1,
adamc@9 254 space,
adamc@9 255 p_exp' true env e2])
adamc@26 256 | EAbs (x, t, _, e) => parenIf par (box [string "fn",
adamc@26 257 space,
adamc@26 258 string x,
adamc@26 259 space,
adamc@26 260 string ":",
adamc@26 261 space,
adamc@26 262 p_con env t,
adamc@26 263 space,
adamc@26 264 string "=>",
adamc@26 265 space,
adamc@26 266 p_exp (E.pushERel env x t) e])
adamc@9 267 | ECApp (e, c) => parenIf par (box [p_exp env e,
adamc@9 268 space,
adamc@9 269 string "[",
adamc@9 270 p_con env c,
adamc@9 271 string "]"])
adamc@9 272 | ECAbs (exp, x, k, e) => parenIf par (box [string "fn",
adamc@9 273 space,
adamc@9 274 string x,
adamc@9 275 space,
adamc@9 276 p_explicitness exp,
adamc@9 277 space,
adamc@9 278 p_kind k,
adamc@9 279 space,
adamc@9 280 string "=>",
adamc@9 281 space,
adamc@9 282 p_exp (E.pushCRel env x k) e])
adamc@9 283
adamc@12 284 | ERecord xes => box [string "{",
adamc@29 285 p_list (fn (x, e, _) =>
adamc@21 286 box [p_name env x,
adamc@12 287 space,
adamc@12 288 string "=",
adamc@12 289 space,
adamc@12 290 p_exp env e]) xes,
adamc@12 291 string "}"]
adamc@12 292 | EField (e, c, {field, rest}) =>
adamc@12 293 if !debug then
adamc@12 294 box [p_exp' true env e,
adamc@12 295 string ".",
adamc@12 296 p_con' true env c,
adamc@12 297 space,
adamc@12 298 string "[",
adamc@12 299 p_con env field,
adamc@12 300 space,
adamc@12 301 string " in ",
adamc@12 302 space,
adamc@12 303 p_con env rest,
adamc@12 304 string "]"]
adamc@12 305 else
adamc@12 306 box [p_exp' true env e,
adamc@12 307 string ".",
adamc@12 308 p_con' true env c]
adamc@149 309 | ECut (e, c, {field, rest}) =>
adamc@149 310 parenIf par (if !debug then
adamc@149 311 box [p_exp' true env e,
adamc@149 312 space,
adamc@149 313 string "--",
adamc@149 314 space,
adamc@149 315 p_con' true env c,
adamc@149 316 space,
adamc@149 317 string "[",
adamc@149 318 p_con env field,
adamc@149 319 space,
adamc@149 320 string " in ",
adamc@149 321 space,
adamc@149 322 p_con env rest,
adamc@149 323 string "]"]
adamc@149 324 else
adamc@149 325 box [p_exp' true env e,
adamc@149 326 space,
adamc@149 327 string "--",
adamc@149 328 space,
adamc@149 329 p_con' true env c])
adamc@72 330 | EFold _ => string "fold"
adamc@71 331
adamc@171 332 | ECase (e, pes, _) => parenIf par (box [string "case",
adamc@171 333 space,
adamc@171 334 p_exp env e,
adamc@171 335 space,
adamc@171 336 string "of",
adamc@171 337 space,
adamc@171 338 p_list_sep (box [space, string "|", space])
adamc@171 339 (fn (p, e) => box [p_pat env p,
adamc@171 340 space,
adamc@171 341 string "=>",
adamc@171 342 space,
adamc@171 343 p_exp env e]) pes])
adamc@171 344
adamc@9 345 | EError => string "<ERROR>"
adamc@9 346
adamc@9 347 and p_exp env = p_exp' false env
adamc@9 348
adamc@31 349 fun p_named x n =
adamc@31 350 if !debug then
adamc@31 351 box [string x,
adamc@31 352 string "__",
adamc@31 353 string (Int.toString n)]
adamc@31 354 else
adamc@31 355 string x
adamc@31 356
adamc@156 357 fun p_datatype env (x, n, cons) =
adamc@156 358 let
adamc@156 359 val env = E.pushCNamedAs env x n (KType, ErrorMsg.dummySpan) NONE
adamc@156 360 in
adamc@156 361 box [string "datatype",
adamc@156 362 space,
adamc@156 363 string x,
adamc@156 364 space,
adamc@156 365 string "=",
adamc@156 366 space,
adamc@156 367 p_list_sep (box [space, string "|", space])
adamc@156 368 (fn (x, _, NONE) => string x
adamc@156 369 | (x, _, SOME t) => box [string x, space, string "of", space, p_con env t])
adamc@156 370 cons]
adamc@156 371 end
adamc@156 372
adamc@31 373 fun p_sgn_item env (sgi, _) =
adamc@31 374 case sgi of
adamc@31 375 SgiConAbs (x, n, k) => box [string "con",
adamc@31 376 space,
adamc@31 377 p_named x n,
adamc@31 378 space,
adamc@31 379 string "::",
adamc@31 380 space,
adamc@31 381 p_kind k]
adamc@31 382 | SgiCon (x, n, k, c) => box [string "con",
adamc@31 383 space,
adamc@31 384 p_named x n,
adamc@31 385 space,
adamc@31 386 string "::",
adamc@31 387 space,
adamc@31 388 p_kind k,
adamc@31 389 space,
adamc@31 390 string "=",
adamc@31 391 space,
adamc@31 392 p_con env c]
adamc@156 393 | SgiDatatype x => p_datatype env x
adamc@162 394 | SgiDatatypeImp (x, _, m1, ms, x', _) =>
adamc@156 395 let
adamc@156 396 val m1x = #1 (E.lookupStrNamed env m1)
adamc@156 397 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@156 398 in
adamc@156 399 box [string "datatype",
adamc@156 400 space,
adamc@156 401 string x,
adamc@156 402 space,
adamc@156 403 string "=",
adamc@156 404 space,
adamc@156 405 string "datatype",
adamc@156 406 space,
adamc@156 407 p_list_sep (string ".") string (m1x :: ms @ [x'])]
adamc@156 408 end
adamc@31 409 | SgiVal (x, n, c) => box [string "val",
adamc@31 410 space,
adamc@31 411 p_named x n,
adamc@31 412 space,
adamc@31 413 string ":",
adamc@31 414 space,
adamc@31 415 p_con env c]
adamc@31 416 | SgiStr (x, n, sgn) => box [string "structure",
adamc@31 417 space,
adamc@31 418 p_named x n,
adamc@31 419 space,
adamc@31 420 string ":",
adamc@31 421 space,
adamc@31 422 p_sgn env sgn]
adamc@59 423 | SgiSgn (x, n, sgn) => box [string "signature",
adamc@59 424 space,
adamc@59 425 p_named x n,
adamc@59 426 space,
adamc@59 427 string "=",
adamc@59 428 space,
adamc@59 429 p_sgn env sgn]
adamc@88 430 | SgiConstraint (c1, c2) => box [string "constraint",
adamc@88 431 space,
adamc@88 432 p_con env c1,
adamc@88 433 space,
adamc@88 434 string "~",
adamc@88 435 space,
adamc@88 436 p_con env c2]
adamc@31 437
adamc@31 438 and p_sgn env (sgn, _) =
adamc@31 439 case sgn of
adamc@31 440 SgnConst sgis => box [string "sig",
adamc@31 441 newline,
adamc@32 442 let
adamc@32 443 val (psgis, _) = ListUtil.foldlMap (fn (sgi, env) =>
adamc@32 444 (p_sgn_item env sgi,
adamc@32 445 E.sgiBinds env sgi))
adamc@32 446 env sgis
adamc@32 447 in
adamc@32 448 p_list_sep newline (fn x => x) psgis
adamc@32 449 end,
adamc@31 450 newline,
adamc@31 451 string "end"]
adamc@88 452 | SgnVar n => ((string (#1 (E.lookupSgnNamed env n)))
adamc@88 453 handle E.UnboundNamed _ => string ("UNBOUND_SGN_" ^ Int.toString n))
adamc@41 454 | SgnFun (x, n, sgn, sgn') => box [string "functor",
adamc@41 455 space,
adamc@41 456 string "(",
adamc@41 457 string x,
adamc@41 458 space,
adamc@41 459 string ":",
adamc@41 460 space,
adamc@41 461 p_sgn env sgn,
adamc@41 462 string ")",
adamc@41 463 space,
adamc@41 464 string ":",
adamc@41 465 space,
adamc@41 466 p_sgn (E.pushStrNamedAs env x n sgn) sgn']
adamc@42 467 | SgnWhere (sgn, x, c) => box [p_sgn env sgn,
adamc@42 468 space,
adamc@42 469 string "where",
adamc@42 470 space,
adamc@42 471 string "con",
adamc@42 472 space,
adamc@42 473 string x,
adamc@42 474 space,
adamc@42 475 string "=",
adamc@42 476 space,
adamc@42 477 p_con env c]
adamc@59 478 | SgnProj (m1, ms, x) =>
adamc@59 479 let
adamc@88 480 val m1x = #1 (E.lookupStrNamed env m1)
adamc@88 481 handle E.UnboundNamed _ => "UNBOUND_SGN_" ^ Int.toString m1
adamc@88 482
adamc@59 483 val m1s = if !debug then
adamc@59 484 m1x ^ "__" ^ Int.toString m1
adamc@59 485 else
adamc@59 486 m1x
adamc@88 487 in
adamc@59 488 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@59 489 end
adamc@31 490 | SgnError => string "<ERROR>"
adamc@31 491
adamc@123 492 fun p_vali env (x, n, t, e) = box [p_named x n,
adamc@123 493 space,
adamc@123 494 string ":",
adamc@123 495 space,
adamc@123 496 p_con env t,
adamc@123 497 space,
adamc@123 498 string "=",
adamc@123 499 space,
adamc@123 500 p_exp env e]
adamc@123 501
adamc@123 502 fun p_decl env (dAll as (d, _) : decl) =
adamc@3 503 case d of
adamc@31 504 DCon (x, n, k, c) => box [string "con",
adamc@31 505 space,
adamc@31 506 p_named x n,
adamc@31 507 space,
adamc@31 508 string "::",
adamc@31 509 space,
adamc@31 510 p_kind k,
adamc@31 511 space,
adamc@31 512 string "=",
adamc@31 513 space,
adamc@31 514 p_con env c]
adamc@156 515 | DDatatype x => p_datatype env x
adamc@162 516 | DDatatypeImp (x, _, m1, ms, x', _) =>
adamc@156 517 let
adamc@156 518 val m1x = #1 (E.lookupStrNamed env m1)
adamc@156 519 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@156 520 in
adamc@156 521 box [string "datatype",
adamc@156 522 space,
adamc@156 523 string x,
adamc@156 524 space,
adamc@156 525 string "=",
adamc@156 526 space,
adamc@156 527 string "datatype",
adamc@156 528 space,
adamc@156 529 p_list_sep (string ".") string (m1x :: ms @ [x'])]
adamc@156 530 end
adamc@123 531 | DVal vi => box [string "val",
adamc@123 532 space,
adamc@123 533 p_vali env vi]
adamc@123 534 | DValRec vis =>
adamc@123 535 let
adamc@123 536 val env = E.declBinds env dAll
adamc@123 537 in
adamc@123 538 box [string "val",
adamc@123 539 space,
adamc@123 540 string "rec",
adamc@123 541 space,
adamc@123 542 p_list_sep (box [newline, string "and", space]) (p_vali env) vis]
adamc@123 543 end
adamc@31 544
adamc@31 545 | DSgn (x, n, sgn) => box [string "signature",
adamc@31 546 space,
adamc@31 547 p_named x n,
adamc@31 548 space,
adamc@31 549 string "=",
adamc@31 550 space,
adamc@31 551 p_sgn env sgn]
adamc@31 552 | DStr (x, n, sgn, str) => box [string "structure",
adamc@31 553 space,
adamc@31 554 p_named x n,
adamc@31 555 space,
adamc@31 556 string ":",
adamc@31 557 space,
adamc@31 558 p_sgn env sgn,
adamc@31 559 space,
adamc@31 560 string "=",
adamc@31 561 space,
adamc@31 562 p_str env str]
adamc@48 563 | DFfiStr (x, n, sgn) => box [string "extern",
adamc@48 564 space,
adamc@48 565 string "structure",
adamc@48 566 space,
adamc@48 567 p_named x n,
adamc@48 568 space,
adamc@48 569 string ":",
adamc@48 570 space,
adamc@48 571 p_sgn env sgn]
adamc@88 572 | DConstraint (c1, c2) => box [string "constraint",
adamc@88 573 space,
adamc@88 574 p_con env c1,
adamc@88 575 space,
adamc@88 576 string "~",
adamc@88 577 space,
adamc@88 578 p_con env c2]
adamc@109 579 | DExport (_, sgn, str) => box [string "export",
adamc@110 580 space,
adamc@109 581 p_str env str,
adamc@109 582 space,
adamc@109 583 string ":",
adamc@109 584 space,
adamc@109 585 p_sgn env sgn]
adamc@31 586
adamc@31 587 and p_str env (str, _) =
adamc@31 588 case str of
adamc@31 589 StrConst ds => box [string "struct",
adamc@31 590 newline,
adamc@32 591 p_file env ds,
adamc@31 592 newline,
adamc@31 593 string "end"]
adamc@88 594 | StrVar n => ((string (#1 (E.lookupStrNamed env n)))
adamc@88 595 handle E.UnboundNamed _ => string ("UNBOUND_STR_" ^ Int.toString n))
adamc@34 596 | StrProj (str, s) => box [p_str env str,
adamc@34 597 string ".",
adamc@34 598 string s]
adamc@41 599 | StrFun (x, n, sgn, sgn', str) =>
adamc@41 600 let
adamc@41 601 val env' = E.pushStrNamedAs env x n sgn
adamc@41 602 in
adamc@41 603 box [string "functor",
adamc@41 604 space,
adamc@41 605 string "(",
adamc@41 606 string x,
adamc@41 607 space,
adamc@41 608 string ":",
adamc@41 609 space,
adamc@41 610 p_sgn env sgn,
adamc@41 611 string ")",
adamc@41 612 space,
adamc@41 613 string ":",
adamc@41 614 space,
adamc@41 615 p_sgn env' sgn',
adamc@41 616 space,
adamc@41 617 string "=>",
adamc@41 618 space,
adamc@41 619 p_str env' str]
adamc@41 620 end
adamc@44 621 | StrApp (str1, str2) => box [p_str env str1,
adamc@44 622 string "(",
adamc@44 623 p_str env str2,
adamc@44 624 string ")"]
adamc@31 625 | StrError => string "<ERROR>"
adamc@3 626
adamc@32 627 and p_file env file =
adamc@3 628 let
adamc@31 629 val (pds, _) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 630 (p_decl env d,
adamc@31 631 E.declBinds env d))
adamc@31 632 env file
adamc@3 633 in
adamc@3 634 p_list_sep newline (fn x => x) pds
adamc@3 635 end
adamc@3 636
adamc@3 637 end