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Elaborating 'let'
author Adam Chlipala <adamc@hcoop.net>
date Sat, 01 Nov 2008 11:17:29 -0400
parents dfc8c991abd0
children 85819353a84f
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@244 28 (* Pretty-printing elaborated Ur/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@207 52 | KTuple ks => box [string "(",
adamc@207 53 p_list_sep (box [space, string "*", space]) p_kind ks,
adamc@207 54 string ")"]
adamc@3 55
adamc@3 56 | KError => string "<ERROR>"
adamc@76 57 | KUnif (_, _, ref (SOME k)) => p_kind' par k
adamc@76 58 | KUnif (_, s, _) => string ("<UNIF:" ^ s ^ ">")
adamc@3 59
adamc@3 60 and p_kind k = p_kind' false k
adamc@3 61
adamc@3 62 fun p_explicitness e =
adamc@3 63 case e of
adamc@3 64 Explicit => string "::"
adamc@3 65 | Implicit => string ":::"
adamc@3 66
adamc@3 67 fun p_con' par env (c, _) =
adamc@3 68 case c of
adamc@3 69 TFun (t1, t2) => parenIf par (box [p_con' true env t1,
adamc@3 70 space,
adamc@3 71 string "->",
adamc@3 72 space,
adamc@3 73 p_con env t2])
adamc@3 74 | TCFun (e, x, k, c) => parenIf par (box [string x,
adamc@3 75 space,
adamc@3 76 p_explicitness e,
adamc@3 77 space,
adamc@3 78 p_kind k,
adamc@3 79 space,
adamc@3 80 string "->",
adamc@3 81 space,
adamc@3 82 p_con (E.pushCRel env x k) c])
adamc@345 83 | CDisjoint (_, c1, c2, c3) => parenIf par (box [p_con env c1,
adamc@334 84 space,
adamc@334 85 string "~",
adamc@334 86 space,
adamc@334 87 p_con env c2,
adamc@334 88 space,
adamc@345 89 string "=>",
adamc@334 90 space,
adamc@334 91 p_con env c3])
adamc@3 92 | TRecord (CRecord (_, xcs), _) => box [string "{",
adamc@3 93 p_list (fn (x, c) =>
adamc@20 94 box [p_name env x,
adamc@3 95 space,
adamc@3 96 string ":",
adamc@3 97 space,
adamc@3 98 p_con env c]) xcs,
adamc@3 99 string "}"]
adamc@3 100 | TRecord c => box [string "$",
adamc@3 101 p_con' true env c]
adamc@3 102
adamc@11 103 | CRel n =>
adamc@71 104 ((if !debug then
adamc@71 105 string (#1 (E.lookupCRel env n) ^ "_" ^ Int.toString n)
adamc@71 106 else
adamc@71 107 string (#1 (E.lookupCRel env n)))
adamc@71 108 handle E.UnboundRel _ => string ("UNBOUND_REL" ^ Int.toString n))
adamc@11 109 | CNamed n =>
adamc@34 110 ((if !debug then
adamc@34 111 string (#1 (E.lookupCNamed env n) ^ "__" ^ Int.toString n)
adamc@34 112 else
adamc@34 113 string (#1 (E.lookupCNamed env n)))
adamc@34 114 handle E.UnboundNamed _ => string ("UNBOUND_NAMED" ^ Int.toString n))
adamc@34 115 | CModProj (m1, ms, x) =>
adamc@34 116 let
adamc@88 117 val m1x = #1 (E.lookupStrNamed env m1)
adamc@88 118 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@88 119
adamc@34 120 val m1s = if !debug then
adamc@34 121 m1x ^ "__" ^ Int.toString m1
adamc@34 122 else
adamc@34 123 m1x
adamc@34 124 in
adamc@34 125 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@88 126 end
adamc@3 127
adamc@3 128 | CApp (c1, c2) => parenIf par (box [p_con env c1,
adamc@3 129 space,
adamc@3 130 p_con' true env c2])
adamc@147 131 | CAbs (x, k, c) => parenIf true (box [string "fn",
adamc@147 132 space,
adamc@147 133 string x,
adamc@147 134 space,
adamc@147 135 string "::",
adamc@147 136 space,
adamc@147 137 p_kind k,
adamc@147 138 space,
adamc@147 139 string "=>",
adamc@147 140 space,
adamc@147 141 p_con (E.pushCRel env x k) c])
adamc@3 142
adamc@3 143 | CName s => box [string "#", string s]
adamc@3 144
adamc@12 145 | CRecord (k, xcs) =>
adamc@12 146 if !debug then
adamc@12 147 parenIf par (box [string "[",
adamc@12 148 p_list (fn (x, c) =>
adamc@12 149 box [p_con env x,
adamc@12 150 space,
adamc@12 151 string "=",
adamc@12 152 space,
adamc@12 153 p_con env c]) xcs,
adamc@12 154 string "]::",
adamc@12 155 p_kind k])
adamc@12 156 else
adamc@12 157 parenIf par (box [string "[",
adamc@12 158 p_list (fn (x, c) =>
adamc@12 159 box [p_con env x,
adamc@12 160 space,
adamc@12 161 string "=",
adamc@12 162 space,
adamc@12 163 p_con env c]) xcs,
adamc@12 164 string "]"])
adamc@3 165 | CConcat (c1, c2) => parenIf par (box [p_con' true env c1,
adamc@3 166 space,
adamc@3 167 string "++",
adamc@3 168 space,
adamc@3 169 p_con env c2])
adamc@67 170 | CFold _ => string "fold"
adamc@3 171
adamc@82 172 | CUnit => string "()"
adamc@82 173
adamc@207 174 | CTuple cs => box [string "(",
adamc@207 175 p_list (p_con env) cs,
adamc@207 176 string ")"]
adamc@207 177 | CProj (c, n) => box [p_con env c,
adamc@207 178 string ".",
adamc@207 179 string (Int.toString n)]
adamc@207 180
adamc@3 181 | CError => string "<ERROR>"
adamc@76 182 | CUnif (_, _, _, ref (SOME c)) => p_con' par env c
adamc@76 183 | CUnif (_, k, s, _) => box [string ("<UNIF:" ^ s ^ "::"),
adamc@76 184 p_kind k,
adamc@76 185 string ">"]
adamc@3 186
adamc@3 187 and p_con env = p_con' false env
adamc@3 188
adamc@20 189 and p_name env (all as (c, _)) =
adamc@20 190 case c of
adamc@20 191 CName s => string s
adamc@20 192 | _ => p_con env all
adamc@20 193
adamc@171 194 fun p_patCon env pc =
adamc@171 195 case pc of
adamc@171 196 PConVar n =>
adamc@171 197 ((if !debug then
adamc@171 198 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
adamc@171 199 else
adamc@171 200 string (#1 (E.lookupENamed env n)))
adamc@171 201 handle E.UnboundRel _ => string ("UNBOUND_NAMED" ^ Int.toString n))
adamc@171 202 | PConProj (m1, ms, x) =>
adamc@171 203 let
adamc@171 204 val m1x = #1 (E.lookupStrNamed env m1)
adamc@171 205 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@171 206
adamc@171 207 val m1s = if !debug then
adamc@171 208 m1x ^ "__" ^ Int.toString m1
adamc@171 209 else
adamc@171 210 m1x
adamc@171 211 in
adamc@171 212 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@171 213 end
adamc@171 214
adamc@171 215 fun p_pat' par env (p, _) =
adamc@171 216 case p of
adamc@171 217 PWild => string "_"
adamc@182 218 | PVar (s, _) => string s
adamc@173 219 | PPrim p => Prim.p_t p
adamc@191 220 | PCon (_, pc, _, NONE) => p_patCon env pc
adamc@191 221 | PCon (_, pc, _, SOME p) => parenIf par (box [p_patCon env pc,
adamc@188 222 space,
adamc@188 223 p_pat' true env p])
adamc@176 224 | PRecord xps =>
adamc@176 225 box [string "{",
adamc@182 226 p_list_sep (box [string ",", space]) (fn (x, p, _) =>
adamc@176 227 box [string x,
adamc@176 228 space,
adamc@176 229 string "=",
adamc@176 230 space,
adamc@176 231 p_pat env p]) xps,
adamc@176 232 string "}"]
adamc@171 233
adamc@175 234 and p_pat x = p_pat' false x
adamc@171 235
adamc@9 236 fun p_exp' par env (e, _) =
adamc@9 237 case e of
adamc@14 238 EPrim p => Prim.p_t p
adamc@14 239 | ERel n =>
adamc@88 240 ((if !debug then
adamc@88 241 string (#1 (E.lookupERel env n) ^ "_" ^ Int.toString n)
adamc@88 242 else
adamc@88 243 string (#1 (E.lookupERel env n)))
adamc@88 244 handle E.UnboundRel _ => string ("UNBOUND_REL" ^ Int.toString n))
adamc@11 245 | ENamed n =>
adamc@88 246 ((if !debug then
adamc@88 247 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
adamc@88 248 else
adamc@88 249 string (#1 (E.lookupENamed env n)))
adamc@88 250 handle E.UnboundRel _ => string ("UNBOUND_NAMED" ^ Int.toString n))
adamc@34 251 | EModProj (m1, ms, x) =>
adamc@34 252 let
adamc@88 253 val m1x = #1 (E.lookupStrNamed env m1)
adamc@88 254 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@88 255
adamc@34 256 val m1s = if !debug then
adamc@34 257 m1x ^ "__" ^ Int.toString m1
adamc@34 258 else
adamc@34 259 m1x
adamc@34 260 in
adamc@34 261 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@34 262 end
adamc@34 263
adamc@9 264 | EApp (e1, e2) => parenIf par (box [p_exp env e1,
adamc@9 265 space,
adamc@9 266 p_exp' true env e2])
adamc@26 267 | EAbs (x, t, _, e) => parenIf par (box [string "fn",
adamc@26 268 space,
adamc@26 269 string x,
adamc@26 270 space,
adamc@26 271 string ":",
adamc@26 272 space,
adamc@26 273 p_con env t,
adamc@26 274 space,
adamc@26 275 string "=>",
adamc@26 276 space,
adamc@26 277 p_exp (E.pushERel env x t) e])
adamc@9 278 | ECApp (e, c) => parenIf par (box [p_exp env e,
adamc@9 279 space,
adamc@9 280 string "[",
adamc@9 281 p_con env c,
adamc@9 282 string "]"])
adamc@9 283 | ECAbs (exp, x, k, e) => parenIf par (box [string "fn",
adamc@9 284 space,
adamc@9 285 string x,
adamc@9 286 space,
adamc@9 287 p_explicitness exp,
adamc@9 288 space,
adamc@9 289 p_kind k,
adamc@9 290 space,
adamc@9 291 string "=>",
adamc@9 292 space,
adamc@9 293 p_exp (E.pushCRel env x k) e])
adamc@9 294
adamc@12 295 | ERecord xes => box [string "{",
adamc@29 296 p_list (fn (x, e, _) =>
adamc@21 297 box [p_name env x,
adamc@12 298 space,
adamc@12 299 string "=",
adamc@12 300 space,
adamc@12 301 p_exp env e]) xes,
adamc@12 302 string "}"]
adamc@12 303 | EField (e, c, {field, rest}) =>
adamc@12 304 if !debug then
adamc@12 305 box [p_exp' true env e,
adamc@12 306 string ".",
adamc@12 307 p_con' true env c,
adamc@12 308 space,
adamc@12 309 string "[",
adamc@12 310 p_con env field,
adamc@12 311 space,
adamc@12 312 string " in ",
adamc@12 313 space,
adamc@12 314 p_con env rest,
adamc@12 315 string "]"]
adamc@12 316 else
adamc@12 317 box [p_exp' true env e,
adamc@12 318 string ".",
adamc@12 319 p_con' true env c]
adamc@445 320 | EConcat (e1, c1, e2, c2) =>
adamc@339 321 parenIf par (if !debug then
adamc@445 322 box [p_exp' true env e1,
adamc@445 323 space,
adamc@445 324 string ":",
adamc@445 325 space,
adamc@445 326 p_con env c1,
adamc@445 327 space,
adamc@445 328 string "++",
adamc@445 329 space,
adamc@445 330 p_exp' true env e2,
adamc@445 331 space,
adamc@445 332 string ":",
adamc@445 333 space,
adamc@445 334 p_con env c2]
adamc@445 335 else
adamc@445 336 box [p_exp' true env e1,
adamc@339 337 space,
adamc@339 338 string "with",
adamc@339 339 space,
adamc@339 340 p_exp' true env e2])
adamc@149 341 | ECut (e, c, {field, rest}) =>
adamc@149 342 parenIf par (if !debug then
adamc@149 343 box [p_exp' true env e,
adamc@149 344 space,
adamc@149 345 string "--",
adamc@149 346 space,
adamc@149 347 p_con' true env c,
adamc@149 348 space,
adamc@149 349 string "[",
adamc@149 350 p_con env field,
adamc@149 351 space,
adamc@149 352 string " in ",
adamc@149 353 space,
adamc@149 354 p_con env rest,
adamc@149 355 string "]"]
adamc@149 356 else
adamc@149 357 box [p_exp' true env e,
adamc@149 358 space,
adamc@149 359 string "--",
adamc@149 360 space,
adamc@149 361 p_con' true env c])
adamc@72 362 | EFold _ => string "fold"
adamc@71 363
adamc@171 364 | ECase (e, pes, _) => parenIf par (box [string "case",
adamc@171 365 space,
adamc@171 366 p_exp env e,
adamc@171 367 space,
adamc@171 368 string "of",
adamc@171 369 space,
adamc@171 370 p_list_sep (box [space, string "|", space])
adamc@171 371 (fn (p, e) => box [p_pat env p,
adamc@171 372 space,
adamc@171 373 string "=>",
adamc@171 374 space,
adamc@243 375 p_exp (E.patBinds env p) e]) pes])
adamc@171 376
adamc@9 377 | EError => string "<ERROR>"
adamc@228 378 | EUnif (ref (SOME e)) => p_exp env e
adamc@228 379 | EUnif _ => string "_"
adamc@9 380
adamc@447 381 | ELet (ds, e) =>
adamc@447 382 let
adamc@447 383 val (dsp, env) = ListUtil.foldlMap
adamc@447 384 (fn (d, env) =>
adamc@447 385 (p_edecl env d,
adamc@447 386 E.edeclBinds env d))
adamc@447 387 env ds
adamc@447 388 in
adamc@447 389 box [string "let",
adamc@447 390 newline,
adamc@447 391 box [p_list_sep newline (fn x => x) dsp],
adamc@447 392 newline,
adamc@447 393 string "in",
adamc@447 394 newline,
adamc@447 395 box [p_exp env e],
adamc@447 396 newline,
adamc@447 397 string "end"]
adamc@447 398 end
adamc@447 399
adamc@9 400 and p_exp env = p_exp' false env
adamc@9 401
adamc@447 402 and p_edecl env (dAll as (d, _)) =
adamc@447 403 case d of
adamc@447 404 EDVal vi => box [string "val",
adamc@447 405 space,
adamc@447 406 p_evali env vi]
adamc@447 407 | EDValRec vis =>
adamc@447 408 let
adamc@447 409 val env = E.edeclBinds env dAll
adamc@447 410 in
adamc@447 411 box [string "val",
adamc@447 412 space,
adamc@447 413 string "rec",
adamc@447 414 space,
adamc@447 415 p_list_sep (box [newline, string "and", space]) (p_evali env) vis]
adamc@447 416 end
adamc@447 417
adamc@447 418 and p_evali env (x, t, e) = box [string x,
adamc@447 419 space,
adamc@447 420 string ":",
adamc@447 421 space,
adamc@447 422 p_con env t,
adamc@447 423 space,
adamc@447 424 string "=",
adamc@447 425 space,
adamc@447 426 p_exp env e]
adamc@31 427
adamc@191 428 fun p_datatype env (x, n, xs, cons) =
adamc@156 429 let
adamc@191 430 val k = (KType, ErrorMsg.dummySpan)
adamc@191 431 val env = E.pushCNamedAs env x n k NONE
adamc@191 432 val env = foldl (fn (x, env) => E.pushCRel env x k) env xs
adamc@156 433 in
adamc@156 434 box [string "datatype",
adamc@156 435 space,
adamc@156 436 string x,
adamc@191 437 p_list_sep (box []) (fn x => box [space, string x]) xs,
adamc@156 438 space,
adamc@156 439 string "=",
adamc@156 440 space,
adamc@156 441 p_list_sep (box [space, string "|", space])
adamc@156 442 (fn (x, _, NONE) => string x
adamc@156 443 | (x, _, SOME t) => box [string x, space, string "of", space, p_con env t])
adamc@156 444 cons]
adamc@156 445 end
adamc@156 446
adamc@447 447 fun p_named x n =
adamc@447 448 if !debug then
adamc@447 449 box [string x,
adamc@447 450 string "__",
adamc@447 451 string (Int.toString n)]
adamc@447 452 else
adamc@447 453 string x
adamc@447 454
adamc@31 455 fun p_sgn_item env (sgi, _) =
adamc@31 456 case sgi of
adamc@31 457 SgiConAbs (x, n, k) => box [string "con",
adamc@31 458 space,
adamc@31 459 p_named x n,
adamc@31 460 space,
adamc@31 461 string "::",
adamc@31 462 space,
adamc@31 463 p_kind k]
adamc@31 464 | SgiCon (x, n, k, c) => box [string "con",
adamc@31 465 space,
adamc@31 466 p_named x n,
adamc@31 467 space,
adamc@31 468 string "::",
adamc@31 469 space,
adamc@31 470 p_kind k,
adamc@31 471 space,
adamc@31 472 string "=",
adamc@31 473 space,
adamc@31 474 p_con env c]
adamc@156 475 | SgiDatatype x => p_datatype env x
adamc@191 476 | SgiDatatypeImp (x, _, m1, ms, x', _, _) =>
adamc@156 477 let
adamc@156 478 val m1x = #1 (E.lookupStrNamed env m1)
adamc@156 479 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@156 480 in
adamc@156 481 box [string "datatype",
adamc@156 482 space,
adamc@156 483 string x,
adamc@156 484 space,
adamc@156 485 string "=",
adamc@156 486 space,
adamc@156 487 string "datatype",
adamc@156 488 space,
adamc@156 489 p_list_sep (string ".") string (m1x :: ms @ [x'])]
adamc@156 490 end
adamc@31 491 | SgiVal (x, n, c) => box [string "val",
adamc@31 492 space,
adamc@31 493 p_named x n,
adamc@31 494 space,
adamc@31 495 string ":",
adamc@31 496 space,
adamc@31 497 p_con env c]
adamc@31 498 | SgiStr (x, n, sgn) => box [string "structure",
adamc@31 499 space,
adamc@31 500 p_named x n,
adamc@31 501 space,
adamc@31 502 string ":",
adamc@31 503 space,
adamc@31 504 p_sgn env sgn]
adamc@59 505 | SgiSgn (x, n, sgn) => box [string "signature",
adamc@59 506 space,
adamc@59 507 p_named x n,
adamc@59 508 space,
adamc@59 509 string "=",
adamc@59 510 space,
adamc@59 511 p_sgn env sgn]
adamc@88 512 | SgiConstraint (c1, c2) => box [string "constraint",
adamc@88 513 space,
adamc@88 514 p_con env c1,
adamc@88 515 space,
adamc@88 516 string "~",
adamc@88 517 space,
adamc@88 518 p_con env c2]
adamc@205 519 | SgiTable (_, x, n, c) => box [string "table",
adamc@205 520 space,
adamc@205 521 p_named x n,
adamc@205 522 space,
adamc@205 523 string ":",
adamc@205 524 space,
adamc@205 525 p_con env c]
adamc@338 526 | SgiSequence (_, x, n) => box [string "sequence",
adamc@338 527 space,
adamc@338 528 p_named x n]
adamc@211 529 | SgiClassAbs (x, n) => box [string "class",
adamc@211 530 space,
adamc@211 531 p_named x n]
adamc@211 532 | SgiClass (x, n, c) => box [string "class",
adamc@211 533 space,
adamc@211 534 p_named x n,
adamc@211 535 space,
adamc@211 536 string "=",
adamc@211 537 space,
adamc@211 538 p_con env c]
adamc@31 539
adamc@31 540 and p_sgn env (sgn, _) =
adamc@31 541 case sgn of
adamc@31 542 SgnConst sgis => box [string "sig",
adamc@31 543 newline,
adamc@32 544 let
adamc@32 545 val (psgis, _) = ListUtil.foldlMap (fn (sgi, env) =>
adamc@32 546 (p_sgn_item env sgi,
adamc@32 547 E.sgiBinds env sgi))
adamc@32 548 env sgis
adamc@32 549 in
adamc@32 550 p_list_sep newline (fn x => x) psgis
adamc@32 551 end,
adamc@31 552 newline,
adamc@31 553 string "end"]
adamc@88 554 | SgnVar n => ((string (#1 (E.lookupSgnNamed env n)))
adamc@88 555 handle E.UnboundNamed _ => string ("UNBOUND_SGN_" ^ Int.toString n))
adamc@41 556 | SgnFun (x, n, sgn, sgn') => box [string "functor",
adamc@41 557 space,
adamc@41 558 string "(",
adamc@41 559 string x,
adamc@41 560 space,
adamc@41 561 string ":",
adamc@41 562 space,
adamc@41 563 p_sgn env sgn,
adamc@41 564 string ")",
adamc@41 565 space,
adamc@41 566 string ":",
adamc@41 567 space,
adamc@41 568 p_sgn (E.pushStrNamedAs env x n sgn) sgn']
adamc@42 569 | SgnWhere (sgn, x, c) => box [p_sgn env sgn,
adamc@42 570 space,
adamc@42 571 string "where",
adamc@42 572 space,
adamc@42 573 string "con",
adamc@42 574 space,
adamc@42 575 string x,
adamc@42 576 space,
adamc@42 577 string "=",
adamc@42 578 space,
adamc@42 579 p_con env c]
adamc@59 580 | SgnProj (m1, ms, x) =>
adamc@59 581 let
adamc@88 582 val m1x = #1 (E.lookupStrNamed env m1)
adamc@88 583 handle E.UnboundNamed _ => "UNBOUND_SGN_" ^ Int.toString m1
adamc@88 584
adamc@59 585 val m1s = if !debug then
adamc@59 586 m1x ^ "__" ^ Int.toString m1
adamc@59 587 else
adamc@59 588 m1x
adamc@88 589 in
adamc@59 590 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@59 591 end
adamc@31 592 | SgnError => string "<ERROR>"
adamc@31 593
adamc@123 594 fun p_vali env (x, n, t, e) = box [p_named x n,
adamc@123 595 space,
adamc@123 596 string ":",
adamc@123 597 space,
adamc@123 598 p_con env t,
adamc@123 599 space,
adamc@123 600 string "=",
adamc@123 601 space,
adamc@123 602 p_exp env e]
adamc@123 603
adamc@447 604
adamc@447 605
adamc@123 606 fun p_decl env (dAll as (d, _) : decl) =
adamc@3 607 case d of
adamc@31 608 DCon (x, n, k, c) => box [string "con",
adamc@31 609 space,
adamc@31 610 p_named x n,
adamc@31 611 space,
adamc@31 612 string "::",
adamc@31 613 space,
adamc@31 614 p_kind k,
adamc@31 615 space,
adamc@31 616 string "=",
adamc@31 617 space,
adamc@31 618 p_con env c]
adamc@156 619 | DDatatype x => p_datatype env x
adamc@191 620 | DDatatypeImp (x, _, m1, ms, x', _, _) =>
adamc@156 621 let
adamc@156 622 val m1x = #1 (E.lookupStrNamed env m1)
adamc@156 623 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@156 624 in
adamc@156 625 box [string "datatype",
adamc@156 626 space,
adamc@156 627 string x,
adamc@156 628 space,
adamc@156 629 string "=",
adamc@156 630 space,
adamc@156 631 string "datatype",
adamc@156 632 space,
adamc@156 633 p_list_sep (string ".") string (m1x :: ms @ [x'])]
adamc@156 634 end
adamc@123 635 | DVal vi => box [string "val",
adamc@123 636 space,
adamc@123 637 p_vali env vi]
adamc@123 638 | DValRec vis =>
adamc@123 639 let
adamc@123 640 val env = E.declBinds env dAll
adamc@123 641 in
adamc@123 642 box [string "val",
adamc@123 643 space,
adamc@123 644 string "rec",
adamc@123 645 space,
adamc@123 646 p_list_sep (box [newline, string "and", space]) (p_vali env) vis]
adamc@123 647 end
adamc@31 648
adamc@31 649 | DSgn (x, n, sgn) => box [string "signature",
adamc@31 650 space,
adamc@31 651 p_named x n,
adamc@31 652 space,
adamc@31 653 string "=",
adamc@31 654 space,
adamc@31 655 p_sgn env sgn]
adamc@31 656 | DStr (x, n, sgn, str) => box [string "structure",
adamc@31 657 space,
adamc@31 658 p_named x n,
adamc@31 659 space,
adamc@31 660 string ":",
adamc@31 661 space,
adamc@31 662 p_sgn env sgn,
adamc@31 663 space,
adamc@31 664 string "=",
adamc@31 665 space,
adamc@31 666 p_str env str]
adamc@48 667 | DFfiStr (x, n, sgn) => box [string "extern",
adamc@48 668 space,
adamc@48 669 string "structure",
adamc@48 670 space,
adamc@48 671 p_named x n,
adamc@48 672 space,
adamc@48 673 string ":",
adamc@48 674 space,
adamc@48 675 p_sgn env sgn]
adamc@88 676 | DConstraint (c1, c2) => box [string "constraint",
adamc@88 677 space,
adamc@88 678 p_con env c1,
adamc@88 679 space,
adamc@88 680 string "~",
adamc@88 681 space,
adamc@88 682 p_con env c2]
adamc@109 683 | DExport (_, sgn, str) => box [string "export",
adamc@110 684 space,
adamc@109 685 p_str env str,
adamc@109 686 space,
adamc@109 687 string ":",
adamc@109 688 space,
adamc@109 689 p_sgn env sgn]
adamc@205 690 | DTable (_, x, n, c) => box [string "table",
adamc@205 691 space,
adamc@205 692 p_named x n,
adamc@205 693 space,
adamc@205 694 string ":",
adamc@205 695 space,
adamc@205 696 p_con env c]
adamc@338 697 | DSequence (_, x, n) => box [string "sequence",
adamc@338 698 space,
adamc@338 699 p_named x n]
adamc@271 700 | DClass (x, n, c) => box [string "class",
adamc@271 701 space,
adamc@271 702 p_named x n,
adamc@271 703 space,
adamc@271 704 string "=",
adamc@271 705 space,
adamc@271 706 p_con env c]
adamc@271 707 | DDatabase s => box [string "database",
adamc@271 708 space,
adamc@271 709 string s]
adamc@31 710
adamc@31 711 and p_str env (str, _) =
adamc@31 712 case str of
adamc@31 713 StrConst ds => box [string "struct",
adamc@31 714 newline,
adamc@32 715 p_file env ds,
adamc@31 716 newline,
adamc@31 717 string "end"]
adamc@88 718 | StrVar n => ((string (#1 (E.lookupStrNamed env n)))
adamc@88 719 handle E.UnboundNamed _ => string ("UNBOUND_STR_" ^ Int.toString n))
adamc@34 720 | StrProj (str, s) => box [p_str env str,
adamc@34 721 string ".",
adamc@34 722 string s]
adamc@41 723 | StrFun (x, n, sgn, sgn', str) =>
adamc@41 724 let
adamc@41 725 val env' = E.pushStrNamedAs env x n sgn
adamc@41 726 in
adamc@41 727 box [string "functor",
adamc@41 728 space,
adamc@41 729 string "(",
adamc@41 730 string x,
adamc@41 731 space,
adamc@41 732 string ":",
adamc@41 733 space,
adamc@41 734 p_sgn env sgn,
adamc@41 735 string ")",
adamc@41 736 space,
adamc@41 737 string ":",
adamc@41 738 space,
adamc@41 739 p_sgn env' sgn',
adamc@41 740 space,
adamc@41 741 string "=>",
adamc@41 742 space,
adamc@41 743 p_str env' str]
adamc@41 744 end
adamc@44 745 | StrApp (str1, str2) => box [p_str env str1,
adamc@44 746 string "(",
adamc@44 747 p_str env str2,
adamc@44 748 string ")"]
adamc@31 749 | StrError => string "<ERROR>"
adamc@3 750
adamc@32 751 and p_file env file =
adamc@3 752 let
adamc@31 753 val (pds, _) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 754 (p_decl env d,
adamc@31 755 E.declBinds env d))
adamc@31 756 env file
adamc@3 757 in
adamc@3 758 p_list_sep newline (fn x => x) pds
adamc@3 759 end
adamc@3 760
adamc@3 761 end