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annotate src/elab_print.sml @ 1639:6c00d8af6239

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Add a new scoping check for unification variables, to fix a type inference bug
author Adam Chlipala <adam@chlipala.net>
date Sun, 18 Dec 2011 11:29:13 -0500
parents c7b9a33c26c8
children 05ae68e019b6
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@623 41 fun p_kind' par env (k, _) =
adamc@3 42 case k of
adamc@3 43 KType => string "Type"
adamc@623 44 | KArrow (k1, k2) => parenIf par (box [p_kind' true env k1,
adamc@3 45 space,
adamc@3 46 string "->",
adamc@3 47 space,
adamc@623 48 p_kind env k2])
adamc@3 49 | KName => string "Name"
adamc@623 50 | KRecord k => box [string "{", p_kind env k, string "}"]
adamc@82 51 | KUnit => string "Unit"
adamc@207 52 | KTuple ks => box [string "(",
adamc@623 53 p_list_sep (box [space, string "*", space]) (p_kind env) ks,
adamc@207 54 string ")"]
adamc@3 55
adamc@3 56 | KError => string "<ERROR>"
adam@1639 57 | KUnif (_, _, ref (KKnown k)) => p_kind' par env k
adamc@76 58 | KUnif (_, s, _) => string ("<UNIF:" ^ s ^ ">")
adam@1639 59 | KTupleUnif (_, _, ref (KKnown k)) => p_kind' par env k
adam@1302 60 | KTupleUnif (_, nks, _) => box [string "(",
adam@1302 61 p_list_sep (box [space, string "*", space])
adam@1302 62 (fn (n, k) => box [string (Int.toString n ^ ":"),
adam@1302 63 space,
adam@1302 64 p_kind env k]) nks,
adam@1302 65 space,
adam@1302 66 string "*",
adam@1302 67 space,
adam@1302 68 string "...)"]
adamc@3 69
adamc@623 70 | KRel n => ((if !debug then
adamc@623 71 string (E.lookupKRel env n ^ "_" ^ Int.toString n)
adamc@623 72 else
adamc@623 73 string (E.lookupKRel env n))
adamc@623 74 handle E.UnboundRel _ => string ("UNBOUND_REL" ^ Int.toString n))
adamc@623 75 | KFun (x, k) => box [string x,
adamc@623 76 space,
adamc@623 77 string "-->",
adamc@623 78 space,
adamc@623 79 p_kind (E.pushKRel env x) k]
adamc@623 80
adamc@624 81 and p_kind env = p_kind' false env
adamc@3 82
adamc@3 83 fun p_explicitness e =
adamc@3 84 case e of
adamc@3 85 Explicit => string "::"
adamc@3 86 | Implicit => string ":::"
adamc@3 87
adamc@3 88 fun p_con' par env (c, _) =
adamc@3 89 case c of
adamc@623 90 TFun (t1, t2) => parenIf true (box [p_con' true env t1,
adamc@3 91 space,
adamc@3 92 string "->",
adamc@3 93 space,
adamc@3 94 p_con env t2])
adamc@3 95 | TCFun (e, x, k, c) => parenIf par (box [string x,
adamc@3 96 space,
adamc@3 97 p_explicitness e,
adamc@3 98 space,
adamc@623 99 p_kind env k,
adamc@3 100 space,
adamc@3 101 string "->",
adamc@3 102 space,
adamc@3 103 p_con (E.pushCRel env x k) c])
adamc@628 104 | TDisjoint (c1, c2, c3) => parenIf par (box [string "[",
adamc@628 105 p_con env c1,
adamc@628 106 space,
adamc@628 107 string "~",
adamc@628 108 space,
adamc@628 109 p_con env c2,
adamc@628 110 string "]",
adamc@628 111 space,
adamc@628 112 string "=>",
adamc@628 113 space,
adamc@628 114 p_con env c3])
adamc@3 115 | TRecord (CRecord (_, xcs), _) => box [string "{",
adamc@3 116 p_list (fn (x, c) =>
adamc@20 117 box [p_name env x,
adamc@3 118 space,
adamc@3 119 string ":",
adamc@3 120 space,
adamc@3 121 p_con env c]) xcs,
adamc@3 122 string "}"]
adamc@3 123 | TRecord c => box [string "$",
adamc@3 124 p_con' true env c]
adamc@3 125
adamc@11 126 | CRel n =>
adamc@71 127 ((if !debug then
adamc@71 128 string (#1 (E.lookupCRel env n) ^ "_" ^ Int.toString n)
adamc@71 129 else
adamc@71 130 string (#1 (E.lookupCRel env n)))
adamc@71 131 handle E.UnboundRel _ => string ("UNBOUND_REL" ^ Int.toString n))
adamc@11 132 | CNamed n =>
adamc@34 133 ((if !debug then
adamc@34 134 string (#1 (E.lookupCNamed env n) ^ "__" ^ Int.toString n)
adamc@34 135 else
adamc@34 136 string (#1 (E.lookupCNamed env n)))
adamc@34 137 handle E.UnboundNamed _ => string ("UNBOUND_NAMED" ^ Int.toString n))
adamc@34 138 | CModProj (m1, ms, x) =>
adamc@34 139 let
adamc@88 140 val m1x = #1 (E.lookupStrNamed env m1)
adamc@88 141 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@88 142
adamc@34 143 val m1s = if !debug then
adamc@34 144 m1x ^ "__" ^ Int.toString m1
adamc@34 145 else
adamc@34 146 m1x
adamc@34 147 in
adamc@34 148 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@88 149 end
adamc@3 150
adamc@3 151 | CApp (c1, c2) => parenIf par (box [p_con env c1,
adamc@3 152 space,
adamc@3 153 p_con' true env c2])
adamc@147 154 | CAbs (x, k, c) => parenIf true (box [string "fn",
adamc@147 155 space,
adamc@147 156 string x,
adamc@147 157 space,
adamc@147 158 string "::",
adamc@147 159 space,
adamc@623 160 p_kind env k,
adamc@147 161 space,
adamc@147 162 string "=>",
adamc@147 163 space,
adamc@147 164 p_con (E.pushCRel env x k) c])
adamc@3 165
adamc@3 166 | CName s => box [string "#", string s]
adamc@3 167
adamc@12 168 | CRecord (k, xcs) =>
adamc@12 169 if !debug then
adamc@12 170 parenIf par (box [string "[",
adamc@12 171 p_list (fn (x, c) =>
adamc@12 172 box [p_con env x,
adamc@12 173 space,
adamc@12 174 string "=",
adamc@12 175 space,
adamc@12 176 p_con env c]) xcs,
adamc@12 177 string "]::",
adamc@623 178 p_kind env k])
adamc@12 179 else
adamc@12 180 parenIf par (box [string "[",
adamc@12 181 p_list (fn (x, c) =>
adamc@12 182 box [p_con env x,
adamc@12 183 space,
adamc@12 184 string "=",
adamc@12 185 space,
adamc@12 186 p_con env c]) xcs,
adamc@12 187 string "]"])
adamc@3 188 | CConcat (c1, c2) => parenIf par (box [p_con' true env c1,
adamc@3 189 space,
adamc@3 190 string "++",
adamc@3 191 space,
adamc@3 192 p_con env c2])
adamc@621 193 | CMap _ => string "map"
adamc@3 194
adamc@82 195 | CUnit => string "()"
adamc@82 196
adamc@207 197 | CTuple cs => box [string "(",
adamc@207 198 p_list (p_con env) cs,
adamc@207 199 string ")"]
adamc@207 200 | CProj (c, n) => box [p_con env c,
adamc@207 201 string ".",
adamc@207 202 string (Int.toString n)]
adamc@207 203
adamc@3 204 | CError => string "<ERROR>"
adam@1639 205 | CUnif (nl, _, _, _, ref (Known c)) => p_con' par env (E.mliftConInCon nl c)
adam@1303 206 | CUnif (nl, _, k, s, _) => box [string ("<UNIF:" ^ s ^ "::"),
adam@1303 207 p_kind env k,
adam@1303 208 case nl of
adam@1303 209 0 => box []
adam@1303 210 | _ => string ("+" ^ Int.toString nl),
adam@1303 211 string ">"]
adamc@623 212
adamc@623 213 | CKAbs (x, c) => box [string x,
adamc@623 214 space,
adamc@623 215 string "==>",
adamc@623 216 space,
adamc@623 217 p_con (E.pushKRel env x) c]
adamc@623 218 | CKApp (c, k) => box [p_con env c,
adamc@623 219 string "[[",
adamc@623 220 p_kind env k,
adamc@623 221 string "]]"]
adamc@623 222 | TKFun (x, c) => box [string x,
adamc@623 223 space,
adamc@623 224 string "-->",
adamc@623 225 space,
adamc@623 226 p_con (E.pushKRel env x) c]
adamc@623 227
adamc@3 228
adamc@3 229 and p_con env = p_con' false env
adamc@3 230
adamc@20 231 and p_name env (all as (c, _)) =
adamc@20 232 case c of
adamc@20 233 CName s => string s
adamc@20 234 | _ => p_con env all
adamc@20 235
adamc@171 236 fun p_patCon env pc =
adamc@171 237 case pc of
adamc@171 238 PConVar n =>
adamc@171 239 ((if !debug then
adamc@171 240 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
adamc@171 241 else
adamc@171 242 string (#1 (E.lookupENamed env n)))
adamc@448 243 handle E.UnboundNamed _ => string ("UNBOUND_NAMED" ^ Int.toString n))
adamc@171 244 | PConProj (m1, ms, x) =>
adamc@171 245 let
adamc@171 246 val m1x = #1 (E.lookupStrNamed env m1)
adamc@171 247 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@171 248
adamc@171 249 val m1s = if !debug then
adamc@171 250 m1x ^ "__" ^ Int.toString m1
adamc@171 251 else
adamc@171 252 m1x
adamc@171 253 in
adamc@171 254 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@171 255 end
adamc@171 256
adamc@171 257 fun p_pat' par env (p, _) =
adamc@171 258 case p of
adamc@171 259 PWild => string "_"
adamc@182 260 | PVar (s, _) => string s
adamc@173 261 | PPrim p => Prim.p_t p
adamc@191 262 | PCon (_, pc, _, NONE) => p_patCon env pc
adamc@191 263 | PCon (_, pc, _, SOME p) => parenIf par (box [p_patCon env pc,
adamc@188 264 space,
adamc@188 265 p_pat' true env p])
adamc@176 266 | PRecord xps =>
adamc@176 267 box [string "{",
adamc@1272 268 p_list_sep (box [string ",", space]) (fn (x, p, t) =>
adamc@176 269 box [string x,
adamc@176 270 space,
adamc@176 271 string "=",
adamc@176 272 space,
adamc@1272 273 p_pat env p,
adamc@1272 274 if !debug then
adamc@1272 275 box [space,
adamc@1272 276 string ":",
adamc@1272 277 space,
adamc@1272 278 p_con env t]
adamc@1272 279 else
adamc@1272 280 box []]) xps,
adamc@176 281 string "}"]
adamc@171 282
adamc@175 283 and p_pat x = p_pat' false x
adamc@171 284
adamc@9 285 fun p_exp' par env (e, _) =
adamc@9 286 case e of
adamc@14 287 EPrim p => Prim.p_t p
adamc@14 288 | ERel n =>
adamc@88 289 ((if !debug then
adamc@88 290 string (#1 (E.lookupERel env n) ^ "_" ^ Int.toString n)
adamc@88 291 else
adamc@88 292 string (#1 (E.lookupERel env n)))
adamc@88 293 handle E.UnboundRel _ => string ("UNBOUND_REL" ^ Int.toString n))
adamc@11 294 | ENamed n =>
adamc@88 295 ((if !debug then
adamc@88 296 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
adamc@88 297 else
adamc@88 298 string (#1 (E.lookupENamed env n)))
adamc@448 299 handle E.UnboundNamed _ => string ("UNBOUND_NAMED" ^ Int.toString n))
adamc@34 300 | EModProj (m1, ms, x) =>
adamc@34 301 let
adamc@88 302 val m1x = #1 (E.lookupStrNamed env m1)
adamc@88 303 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@88 304
adamc@34 305 val m1s = if !debug then
adamc@34 306 m1x ^ "__" ^ Int.toString m1
adamc@34 307 else
adamc@34 308 m1x
adamc@34 309 in
adamc@34 310 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@34 311 end
adamc@34 312
adamc@9 313 | EApp (e1, e2) => parenIf par (box [p_exp env e1,
adamc@9 314 space,
adamc@9 315 p_exp' true env e2])
adamc@26 316 | EAbs (x, t, _, e) => parenIf par (box [string "fn",
adamc@26 317 space,
adamc@26 318 string x,
adamc@26 319 space,
adamc@26 320 string ":",
adamc@26 321 space,
adamc@26 322 p_con env t,
adamc@26 323 space,
adamc@26 324 string "=>",
adamc@26 325 space,
adamc@26 326 p_exp (E.pushERel env x t) e])
adamc@9 327 | ECApp (e, c) => parenIf par (box [p_exp env e,
adamc@9 328 space,
adamc@9 329 string "[",
adamc@9 330 p_con env c,
adamc@9 331 string "]"])
adamc@9 332 | ECAbs (exp, x, k, e) => parenIf par (box [string "fn",
adamc@9 333 space,
adamc@9 334 string x,
adamc@9 335 space,
adamc@9 336 p_explicitness exp,
adamc@9 337 space,
adamc@623 338 p_kind env k,
adamc@9 339 space,
adamc@9 340 string "=>",
adamc@9 341 space,
adamc@9 342 p_exp (E.pushCRel env x k) e])
adamc@9 343
adamc@12 344 | ERecord xes => box [string "{",
adamc@29 345 p_list (fn (x, e, _) =>
adamc@21 346 box [p_name env x,
adamc@12 347 space,
adamc@12 348 string "=",
adamc@12 349 space,
adamc@12 350 p_exp env e]) xes,
adamc@12 351 string "}"]
adamc@12 352 | EField (e, c, {field, rest}) =>
adamc@12 353 if !debug then
adamc@12 354 box [p_exp' true env e,
adamc@12 355 string ".",
adamc@12 356 p_con' true env c,
adamc@12 357 space,
adamc@12 358 string "[",
adamc@12 359 p_con env field,
adamc@12 360 space,
adamc@12 361 string " in ",
adamc@12 362 space,
adamc@12 363 p_con env rest,
adamc@12 364 string "]"]
adamc@12 365 else
adamc@12 366 box [p_exp' true env e,
adamc@12 367 string ".",
adamc@12 368 p_con' true env c]
adamc@445 369 | EConcat (e1, c1, e2, c2) =>
adamc@339 370 parenIf par (if !debug then
adamc@445 371 box [p_exp' true env e1,
adamc@445 372 space,
adamc@445 373 string ":",
adamc@445 374 space,
adamc@445 375 p_con env c1,
adamc@445 376 space,
adamc@445 377 string "++",
adamc@445 378 space,
adamc@445 379 p_exp' true env e2,
adamc@445 380 space,
adamc@445 381 string ":",
adamc@445 382 space,
adamc@445 383 p_con env c2]
adamc@445 384 else
adamc@445 385 box [p_exp' true env e1,
adamc@339 386 space,
adamc@494 387 string "++",
adamc@339 388 space,
adamc@339 389 p_exp' true env e2])
adamc@149 390 | ECut (e, c, {field, rest}) =>
adamc@149 391 parenIf par (if !debug then
adamc@149 392 box [p_exp' true env e,
adamc@149 393 space,
adamc@149 394 string "--",
adamc@149 395 space,
adamc@149 396 p_con' true env c,
adamc@149 397 space,
adamc@149 398 string "[",
adamc@149 399 p_con env field,
adamc@149 400 space,
adamc@149 401 string " in ",
adamc@149 402 space,
adamc@149 403 p_con env rest,
adamc@149 404 string "]"]
adamc@149 405 else
adamc@149 406 box [p_exp' true env e,
adamc@149 407 space,
adamc@149 408 string "--",
adamc@149 409 space,
adamc@149 410 p_con' true env c])
adamc@493 411 | ECutMulti (e, c, {rest}) =>
adamc@493 412 parenIf par (if !debug then
adamc@493 413 box [p_exp' true env e,
adamc@493 414 space,
adamc@493 415 string "---",
adamc@493 416 space,
adamc@493 417 p_con' true env c,
adamc@493 418 space,
adamc@493 419 string "[",
adamc@493 420 p_con env rest,
adamc@493 421 string "]"]
adamc@493 422 else
adamc@493 423 box [p_exp' true env e,
adamc@493 424 space,
adamc@493 425 string "---",
adamc@493 426 space,
adamc@493 427 p_con' true env c])
adamc@493 428
adamc@171 429 | ECase (e, pes, _) => parenIf par (box [string "case",
adamc@171 430 space,
adamc@171 431 p_exp env e,
adamc@171 432 space,
adamc@171 433 string "of",
adamc@171 434 space,
adamc@171 435 p_list_sep (box [space, string "|", space])
adamc@171 436 (fn (p, e) => box [p_pat env p,
adamc@171 437 space,
adamc@171 438 string "=>",
adamc@171 439 space,
adamc@243 440 p_exp (E.patBinds env p) e]) pes])
adamc@171 441
adamc@9 442 | EError => string "<ERROR>"
adamc@228 443 | EUnif (ref (SOME e)) => p_exp env e
adamc@228 444 | EUnif _ => string "_"
adamc@9 445
adamc@825 446 | ELet (ds, e, _) =>
adamc@447 447 let
adamc@447 448 val (dsp, env) = ListUtil.foldlMap
adamc@447 449 (fn (d, env) =>
adamc@447 450 (p_edecl env d,
adamc@447 451 E.edeclBinds env d))
adamc@447 452 env ds
adamc@447 453 in
adamc@447 454 box [string "let",
adamc@447 455 newline,
adamc@447 456 box [p_list_sep newline (fn x => x) dsp],
adamc@447 457 newline,
adamc@447 458 string "in",
adamc@447 459 newline,
adamc@447 460 box [p_exp env e],
adamc@447 461 newline,
adamc@447 462 string "end"]
adamc@447 463 end
adamc@447 464
adamc@623 465 | EKAbs (x, e) => box [string x,
adamc@623 466 space,
adamc@623 467 string "==>",
adamc@623 468 space,
adamc@623 469 p_exp (E.pushKRel env x) e]
adamc@623 470 | EKApp (e, k) => box [p_exp env e,
adamc@623 471 string "[[",
adamc@623 472 p_kind env k,
adamc@623 473 string "]]"]
adamc@623 474
adamc@9 475 and p_exp env = p_exp' false env
adamc@9 476
adamc@447 477 and p_edecl env (dAll as (d, _)) =
adamc@447 478 case d of
adamc@825 479 EDVal (p, t, e) => box [string "val",
adamc@825 480 space,
adamc@825 481 p_pat env p,
adamc@825 482 space,
adamc@825 483 string ":",
adamc@825 484 space,
adamc@825 485 p_con env t,
adamc@825 486 space,
adamc@825 487 string "=",
adamc@825 488 space,
adamc@825 489 p_exp env e]
adamc@447 490 | EDValRec vis =>
adamc@447 491 let
adamc@447 492 val env = E.edeclBinds env dAll
adamc@447 493 in
adamc@447 494 box [string "val",
adamc@447 495 space,
adamc@447 496 string "rec",
adamc@447 497 space,
adamc@447 498 p_list_sep (box [newline, string "and", space]) (p_evali env) vis]
adamc@447 499 end
adamc@447 500
adamc@447 501 and p_evali env (x, t, e) = box [string x,
adamc@447 502 space,
adamc@447 503 string ":",
adamc@447 504 space,
adamc@447 505 p_con env t,
adamc@447 506 space,
adamc@447 507 string "=",
adamc@447 508 space,
adamc@447 509 p_exp env e]
adamc@31 510
adamc@191 511 fun p_datatype env (x, n, xs, cons) =
adamc@156 512 let
adamc@191 513 val k = (KType, ErrorMsg.dummySpan)
adamc@191 514 val env = E.pushCNamedAs env x n k NONE
adamc@191 515 val env = foldl (fn (x, env) => E.pushCRel env x k) env xs
adamc@156 516 in
adamc@805 517 box [string x,
adamc@191 518 p_list_sep (box []) (fn x => box [space, string x]) xs,
adamc@156 519 space,
adamc@156 520 string "=",
adamc@156 521 space,
adamc@156 522 p_list_sep (box [space, string "|", space])
adamc@156 523 (fn (x, _, NONE) => string x
adamc@156 524 | (x, _, SOME t) => box [string x, space, string "of", space, p_con env t])
adamc@156 525 cons]
adamc@156 526 end
adamc@156 527
adamc@447 528 fun p_named x n =
adamc@447 529 if !debug then
adamc@447 530 box [string x,
adamc@447 531 string "__",
adamc@447 532 string (Int.toString n)]
adamc@447 533 else
adamc@447 534 string x
adamc@447 535
adamc@805 536 fun p_sgn_item env (sgiAll as (sgi, _)) =
adamc@31 537 case sgi of
adamc@31 538 SgiConAbs (x, n, k) => box [string "con",
adamc@31 539 space,
adamc@31 540 p_named x n,
adamc@31 541 space,
adamc@31 542 string "::",
adamc@31 543 space,
adamc@623 544 p_kind env k]
adamc@31 545 | SgiCon (x, n, k, c) => box [string "con",
adamc@31 546 space,
adamc@31 547 p_named x n,
adamc@31 548 space,
adamc@31 549 string "::",
adamc@31 550 space,
adamc@623 551 p_kind env k,
adamc@31 552 space,
adamc@31 553 string "=",
adamc@31 554 space,
adamc@31 555 p_con env c]
adamc@805 556 | SgiDatatype x => box [string "datatype",
adamc@805 557 space,
adamc@805 558 p_list_sep (box [space, string "and", space]) (p_datatype (E.sgiBinds env sgiAll)) x]
adamc@191 559 | SgiDatatypeImp (x, _, m1, ms, x', _, _) =>
adamc@156 560 let
adamc@156 561 val m1x = #1 (E.lookupStrNamed env m1)
adamc@156 562 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@156 563 in
adamc@156 564 box [string "datatype",
adamc@156 565 space,
adamc@156 566 string x,
adamc@156 567 space,
adamc@156 568 string "=",
adamc@156 569 space,
adamc@156 570 string "datatype",
adamc@156 571 space,
adamc@156 572 p_list_sep (string ".") string (m1x :: ms @ [x'])]
adamc@156 573 end
adamc@31 574 | SgiVal (x, n, c) => box [string "val",
adamc@31 575 space,
adamc@31 576 p_named x n,
adamc@31 577 space,
adamc@31 578 string ":",
adamc@31 579 space,
adamc@31 580 p_con env c]
adamc@31 581 | SgiStr (x, n, sgn) => box [string "structure",
adamc@31 582 space,
adamc@31 583 p_named x n,
adamc@31 584 space,
adamc@31 585 string ":",
adamc@31 586 space,
adamc@31 587 p_sgn env sgn]
adamc@59 588 | SgiSgn (x, n, sgn) => box [string "signature",
adamc@59 589 space,
adamc@59 590 p_named x n,
adamc@59 591 space,
adamc@59 592 string "=",
adamc@59 593 space,
adamc@59 594 p_sgn env sgn]
adamc@88 595 | SgiConstraint (c1, c2) => box [string "constraint",
adamc@88 596 space,
adamc@88 597 p_con env c1,
adamc@88 598 space,
adamc@88 599 string "~",
adamc@88 600 space,
adamc@88 601 p_con env c2]
adamc@563 602 | SgiClassAbs (x, n, k) => box [string "class",
adamc@563 603 space,
adamc@563 604 p_named x n,
adamc@563 605 space,
adamc@563 606 string "::",
adamc@563 607 space,
adamc@623 608 p_kind env k]
adamc@563 609 | SgiClass (x, n, k, c) => box [string "class",
adamc@563 610 space,
adamc@563 611 p_named x n,
adamc@563 612 space,
adamc@563 613 string "::",
adamc@563 614 space,
adamc@623 615 p_kind env k,
adamc@563 616 space,
adamc@563 617 string "=",
adamc@563 618 space,
adamc@563 619 p_con env c]
adamc@31 620
adamc@31 621 and p_sgn env (sgn, _) =
adamc@31 622 case sgn of
adamc@31 623 SgnConst sgis => box [string "sig",
adamc@31 624 newline,
adamc@32 625 let
adamc@32 626 val (psgis, _) = ListUtil.foldlMap (fn (sgi, env) =>
adamc@32 627 (p_sgn_item env sgi,
adamc@32 628 E.sgiBinds env sgi))
adamc@32 629 env sgis
adamc@32 630 in
adamc@32 631 p_list_sep newline (fn x => x) psgis
adamc@32 632 end,
adamc@31 633 newline,
adamc@31 634 string "end"]
adamc@88 635 | SgnVar n => ((string (#1 (E.lookupSgnNamed env n)))
adamc@88 636 handle E.UnboundNamed _ => string ("UNBOUND_SGN_" ^ Int.toString n))
adamc@41 637 | SgnFun (x, n, sgn, sgn') => box [string "functor",
adamc@41 638 space,
adamc@41 639 string "(",
adamc@41 640 string x,
adamc@41 641 space,
adamc@41 642 string ":",
adamc@41 643 space,
adamc@41 644 p_sgn env sgn,
adamc@41 645 string ")",
adamc@41 646 space,
adamc@41 647 string ":",
adamc@41 648 space,
adamc@41 649 p_sgn (E.pushStrNamedAs env x n sgn) sgn']
adamc@42 650 | SgnWhere (sgn, x, c) => box [p_sgn env sgn,
adamc@42 651 space,
adamc@42 652 string "where",
adamc@42 653 space,
adamc@42 654 string "con",
adamc@42 655 space,
adamc@42 656 string x,
adamc@42 657 space,
adamc@42 658 string "=",
adamc@42 659 space,
adamc@42 660 p_con env c]
adamc@59 661 | SgnProj (m1, ms, x) =>
adamc@59 662 let
adamc@88 663 val m1x = #1 (E.lookupStrNamed env m1)
adamc@88 664 handle E.UnboundNamed _ => "UNBOUND_SGN_" ^ Int.toString m1
adamc@88 665
adamc@59 666 val m1s = if !debug then
adamc@59 667 m1x ^ "__" ^ Int.toString m1
adamc@59 668 else
adamc@59 669 m1x
adamc@88 670 in
adamc@59 671 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@59 672 end
adamc@31 673 | SgnError => string "<ERROR>"
adamc@31 674
adamc@123 675 fun p_vali env (x, n, t, e) = box [p_named x n,
adamc@123 676 space,
adamc@123 677 string ":",
adamc@123 678 space,
adamc@123 679 p_con env t,
adamc@123 680 space,
adamc@123 681 string "=",
adamc@123 682 space,
adamc@123 683 p_exp env e]
adamc@123 684
adamc@447 685
adamc@447 686
adamc@123 687 fun p_decl env (dAll as (d, _) : decl) =
adamc@3 688 case d of
adamc@31 689 DCon (x, n, k, c) => box [string "con",
adamc@31 690 space,
adamc@31 691 p_named x n,
adamc@31 692 space,
adamc@31 693 string "::",
adamc@31 694 space,
adamc@623 695 p_kind env k,
adamc@31 696 space,
adamc@31 697 string "=",
adamc@31 698 space,
adamc@31 699 p_con env c]
adamc@805 700 | DDatatype x => box [string "datatype",
adamc@805 701 space,
adamc@805 702 p_list_sep (box [space, string "and", space]) (p_datatype (E.declBinds env dAll)) x]
adamc@191 703 | DDatatypeImp (x, _, m1, ms, x', _, _) =>
adamc@156 704 let
adamc@156 705 val m1x = #1 (E.lookupStrNamed env m1)
adamc@156 706 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@156 707 in
adamc@156 708 box [string "datatype",
adamc@156 709 space,
adamc@156 710 string x,
adamc@156 711 space,
adamc@156 712 string "=",
adamc@156 713 space,
adamc@156 714 string "datatype",
adamc@156 715 space,
adamc@156 716 p_list_sep (string ".") string (m1x :: ms @ [x'])]
adamc@156 717 end
adamc@123 718 | DVal vi => box [string "val",
adamc@123 719 space,
adamc@123 720 p_vali env vi]
adamc@123 721 | DValRec vis =>
adamc@123 722 let
adamc@123 723 val env = E.declBinds env dAll
adamc@123 724 in
adamc@123 725 box [string "val",
adamc@123 726 space,
adamc@123 727 string "rec",
adamc@123 728 space,
adamc@123 729 p_list_sep (box [newline, string "and", space]) (p_vali env) vis]
adamc@123 730 end
adamc@31 731
adamc@31 732 | DSgn (x, n, sgn) => box [string "signature",
adamc@31 733 space,
adamc@31 734 p_named x n,
adamc@31 735 space,
adamc@31 736 string "=",
adamc@31 737 space,
adamc@31 738 p_sgn env sgn]
adamc@31 739 | DStr (x, n, sgn, str) => box [string "structure",
adamc@31 740 space,
adamc@31 741 p_named x n,
adamc@31 742 space,
adamc@31 743 string ":",
adamc@31 744 space,
adamc@31 745 p_sgn env sgn,
adamc@31 746 space,
adamc@31 747 string "=",
adamc@31 748 space,
adamc@31 749 p_str env str]
adamc@48 750 | DFfiStr (x, n, sgn) => box [string "extern",
adamc@48 751 space,
adamc@48 752 string "structure",
adamc@48 753 space,
adamc@48 754 p_named x n,
adamc@48 755 space,
adamc@48 756 string ":",
adamc@48 757 space,
adamc@48 758 p_sgn env sgn]
adamc@88 759 | DConstraint (c1, c2) => box [string "constraint",
adamc@88 760 space,
adamc@88 761 p_con env c1,
adamc@88 762 space,
adamc@88 763 string "~",
adamc@88 764 space,
adamc@88 765 p_con env c2]
adamc@109 766 | DExport (_, sgn, str) => box [string "export",
adamc@110 767 space,
adamc@109 768 p_str env str,
adamc@109 769 space,
adamc@109 770 string ":",
adamc@109 771 space,
adamc@109 772 p_sgn env sgn]
adamc@707 773 | DTable (_, x, n, c, pe, _, ce, _) => box [string "table",
adamc@707 774 space,
adamc@707 775 p_named x n,
adamc@707 776 space,
adamc@707 777 string ":",
adamc@707 778 space,
adamc@707 779 p_con env c,
adamc@707 780 space,
adamc@707 781 string "keys",
adamc@707 782 space,
adamc@707 783 p_exp env pe,
adamc@707 784 space,
adamc@707 785 string "constraints",
adamc@707 786 space,
adamc@707 787 p_exp env ce]
adamc@338 788 | DSequence (_, x, n) => box [string "sequence",
adamc@338 789 space,
adamc@338 790 p_named x n]
adamc@754 791 | DView (_, x, n, e, _) => box [string "view",
adamc@754 792 space,
adamc@754 793 p_named x n,
adamc@754 794 space,
adamc@754 795 string "as",
adamc@754 796 space,
adamc@754 797 p_exp env e]
adamc@563 798 | DClass (x, n, k, c) => box [string "class",
adamc@563 799 space,
adamc@563 800 p_named x n,
adamc@563 801 space,
adamc@563 802 string "::",
adamc@563 803 space,
adamc@623 804 p_kind env k,
adamc@563 805 space,
adamc@563 806 string "=",
adamc@563 807 space,
adamc@563 808 p_con env c]
adamc@271 809 | DDatabase s => box [string "database",
adamc@271 810 space,
adamc@271 811 string s]
adamc@459 812 | DCookie (_, x, n, c) => box [string "cookie",
adamc@459 813 space,
adamc@459 814 p_named x n,
adamc@459 815 space,
adamc@459 816 string ":",
adamc@459 817 space,
adamc@459 818 p_con env c]
adamc@720 819 | DStyle (_, x, n) => box [string "style",
adamc@720 820 space,
adamc@720 821 p_named x n]
adamc@1075 822 | DTask (e1, e2) => box [string "task",
adamc@1073 823 space,
adamc@1075 824 p_exp env e1,
adamc@1075 825 space,
adamc@1075 826 string "=",
adamc@1075 827 space,
adamc@1075 828 p_exp env e2]
adamc@1199 829 | DPolicy e1 => box [string "policy",
adamc@1199 830 space,
adamc@1199 831 p_exp env e1]
adam@1294 832 | DOnError _ => string "ONERROR"
adamc@31 833
adamc@31 834 and p_str env (str, _) =
adamc@31 835 case str of
adamc@31 836 StrConst ds => box [string "struct",
adamc@31 837 newline,
adamc@32 838 p_file env ds,
adamc@31 839 newline,
adamc@31 840 string "end"]
adamc@88 841 | StrVar n => ((string (#1 (E.lookupStrNamed env n)))
adamc@88 842 handle E.UnboundNamed _ => string ("UNBOUND_STR_" ^ Int.toString n))
adamc@34 843 | StrProj (str, s) => box [p_str env str,
adamc@34 844 string ".",
adamc@34 845 string s]
adamc@41 846 | StrFun (x, n, sgn, sgn', str) =>
adamc@41 847 let
adamc@41 848 val env' = E.pushStrNamedAs env x n sgn
adamc@41 849 in
adamc@41 850 box [string "functor",
adamc@41 851 space,
adamc@41 852 string "(",
adamc@41 853 string x,
adamc@41 854 space,
adamc@41 855 string ":",
adamc@41 856 space,
adamc@41 857 p_sgn env sgn,
adamc@41 858 string ")",
adamc@41 859 space,
adamc@41 860 string ":",
adamc@41 861 space,
adamc@41 862 p_sgn env' sgn',
adamc@41 863 space,
adamc@41 864 string "=>",
adamc@41 865 space,
adamc@41 866 p_str env' str]
adamc@41 867 end
adamc@44 868 | StrApp (str1, str2) => box [p_str env str1,
adamc@44 869 string "(",
adamc@44 870 p_str env str2,
adamc@44 871 string ")"]
adamc@31 872 | StrError => string "<ERROR>"
adamc@3 873
adamc@32 874 and p_file env file =
adamc@3 875 let
adamc@31 876 val (pds, _) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 877 (p_decl env d,
adamc@31 878 E.declBinds env d))
adamc@31 879 env file
adamc@3 880 in
adamc@3 881 p_list_sep newline (fn x => x) pds
adamc@3 882 end
adamc@3 883
adamc@3 884 end