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annotate src/elab_print.sml @ 147:eb16f2aadbe9

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Meta-programming forms
author Adam Chlipala <adamc@hcoop.net>
date Tue, 22 Jul 2008 18:46:04 -0400
parents e3041657d653
children 7420fa18d657
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@9 193 fun p_exp' par env (e, _) =
adamc@9 194 case e of
adamc@14 195 EPrim p => Prim.p_t p
adamc@14 196 | ERel n =>
adamc@88 197 ((if !debug then
adamc@88 198 string (#1 (E.lookupERel env n) ^ "_" ^ Int.toString n)
adamc@88 199 else
adamc@88 200 string (#1 (E.lookupERel env n)))
adamc@88 201 handle E.UnboundRel _ => string ("UNBOUND_REL" ^ Int.toString n))
adamc@11 202 | ENamed n =>
adamc@88 203 ((if !debug then
adamc@88 204 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
adamc@88 205 else
adamc@88 206 string (#1 (E.lookupENamed env n)))
adamc@88 207 handle E.UnboundRel _ => string ("UNBOUND_NAMED" ^ Int.toString n))
adamc@34 208 | EModProj (m1, ms, x) =>
adamc@34 209 let
adamc@88 210 val m1x = #1 (E.lookupStrNamed env m1)
adamc@88 211 handle E.UnboundNamed _ => "UNBOUND_STR_" ^ Int.toString m1
adamc@88 212
adamc@34 213 val m1s = if !debug then
adamc@34 214 m1x ^ "__" ^ Int.toString m1
adamc@34 215 else
adamc@34 216 m1x
adamc@34 217 in
adamc@34 218 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@34 219 end
adamc@34 220
adamc@9 221 | EApp (e1, e2) => parenIf par (box [p_exp env e1,
adamc@9 222 space,
adamc@9 223 p_exp' true env e2])
adamc@26 224 | EAbs (x, t, _, e) => parenIf par (box [string "fn",
adamc@26 225 space,
adamc@26 226 string x,
adamc@26 227 space,
adamc@26 228 string ":",
adamc@26 229 space,
adamc@26 230 p_con env t,
adamc@26 231 space,
adamc@26 232 string "=>",
adamc@26 233 space,
adamc@26 234 p_exp (E.pushERel env x t) e])
adamc@9 235 | ECApp (e, c) => parenIf par (box [p_exp env e,
adamc@9 236 space,
adamc@9 237 string "[",
adamc@9 238 p_con env c,
adamc@9 239 string "]"])
adamc@9 240 | ECAbs (exp, x, k, e) => parenIf par (box [string "fn",
adamc@9 241 space,
adamc@9 242 string x,
adamc@9 243 space,
adamc@9 244 p_explicitness exp,
adamc@9 245 space,
adamc@9 246 p_kind k,
adamc@9 247 space,
adamc@9 248 string "=>",
adamc@9 249 space,
adamc@9 250 p_exp (E.pushCRel env x k) e])
adamc@9 251
adamc@12 252 | ERecord xes => box [string "{",
adamc@29 253 p_list (fn (x, e, _) =>
adamc@21 254 box [p_name env x,
adamc@12 255 space,
adamc@12 256 string "=",
adamc@12 257 space,
adamc@12 258 p_exp env e]) xes,
adamc@12 259 string "}"]
adamc@12 260 | EField (e, c, {field, rest}) =>
adamc@12 261 if !debug then
adamc@12 262 box [p_exp' true env e,
adamc@12 263 string ".",
adamc@12 264 p_con' true env c,
adamc@12 265 space,
adamc@12 266 string "[",
adamc@12 267 p_con env field,
adamc@12 268 space,
adamc@12 269 string " in ",
adamc@12 270 space,
adamc@12 271 p_con env rest,
adamc@12 272 string "]"]
adamc@12 273 else
adamc@12 274 box [p_exp' true env e,
adamc@12 275 string ".",
adamc@12 276 p_con' true env c]
adamc@72 277 | EFold _ => string "fold"
adamc@71 278
adamc@9 279 | EError => string "<ERROR>"
adamc@9 280
adamc@9 281 and p_exp env = p_exp' false env
adamc@9 282
adamc@31 283 fun p_named x n =
adamc@31 284 if !debug then
adamc@31 285 box [string x,
adamc@31 286 string "__",
adamc@31 287 string (Int.toString n)]
adamc@31 288 else
adamc@31 289 string x
adamc@31 290
adamc@31 291 fun p_sgn_item env (sgi, _) =
adamc@31 292 case sgi of
adamc@31 293 SgiConAbs (x, n, k) => box [string "con",
adamc@31 294 space,
adamc@31 295 p_named x n,
adamc@31 296 space,
adamc@31 297 string "::",
adamc@31 298 space,
adamc@31 299 p_kind k]
adamc@31 300 | SgiCon (x, n, k, c) => box [string "con",
adamc@31 301 space,
adamc@31 302 p_named x n,
adamc@31 303 space,
adamc@31 304 string "::",
adamc@31 305 space,
adamc@31 306 p_kind k,
adamc@31 307 space,
adamc@31 308 string "=",
adamc@31 309 space,
adamc@31 310 p_con env c]
adamc@31 311 | SgiVal (x, n, c) => box [string "val",
adamc@31 312 space,
adamc@31 313 p_named x n,
adamc@31 314 space,
adamc@31 315 string ":",
adamc@31 316 space,
adamc@31 317 p_con env c]
adamc@31 318 | SgiStr (x, n, sgn) => box [string "structure",
adamc@31 319 space,
adamc@31 320 p_named x n,
adamc@31 321 space,
adamc@31 322 string ":",
adamc@31 323 space,
adamc@31 324 p_sgn env sgn]
adamc@59 325 | SgiSgn (x, n, sgn) => box [string "signature",
adamc@59 326 space,
adamc@59 327 p_named x n,
adamc@59 328 space,
adamc@59 329 string "=",
adamc@59 330 space,
adamc@59 331 p_sgn env sgn]
adamc@88 332 | SgiConstraint (c1, c2) => box [string "constraint",
adamc@88 333 space,
adamc@88 334 p_con env c1,
adamc@88 335 space,
adamc@88 336 string "~",
adamc@88 337 space,
adamc@88 338 p_con env c2]
adamc@31 339
adamc@31 340 and p_sgn env (sgn, _) =
adamc@31 341 case sgn of
adamc@31 342 SgnConst sgis => box [string "sig",
adamc@31 343 newline,
adamc@32 344 let
adamc@32 345 val (psgis, _) = ListUtil.foldlMap (fn (sgi, env) =>
adamc@32 346 (p_sgn_item env sgi,
adamc@32 347 E.sgiBinds env sgi))
adamc@32 348 env sgis
adamc@32 349 in
adamc@32 350 p_list_sep newline (fn x => x) psgis
adamc@32 351 end,
adamc@31 352 newline,
adamc@31 353 string "end"]
adamc@88 354 | SgnVar n => ((string (#1 (E.lookupSgnNamed env n)))
adamc@88 355 handle E.UnboundNamed _ => string ("UNBOUND_SGN_" ^ Int.toString n))
adamc@41 356 | SgnFun (x, n, sgn, sgn') => box [string "functor",
adamc@41 357 space,
adamc@41 358 string "(",
adamc@41 359 string x,
adamc@41 360 space,
adamc@41 361 string ":",
adamc@41 362 space,
adamc@41 363 p_sgn env sgn,
adamc@41 364 string ")",
adamc@41 365 space,
adamc@41 366 string ":",
adamc@41 367 space,
adamc@41 368 p_sgn (E.pushStrNamedAs env x n sgn) sgn']
adamc@42 369 | SgnWhere (sgn, x, c) => box [p_sgn env sgn,
adamc@42 370 space,
adamc@42 371 string "where",
adamc@42 372 space,
adamc@42 373 string "con",
adamc@42 374 space,
adamc@42 375 string x,
adamc@42 376 space,
adamc@42 377 string "=",
adamc@42 378 space,
adamc@42 379 p_con env c]
adamc@59 380 | SgnProj (m1, ms, x) =>
adamc@59 381 let
adamc@88 382 val m1x = #1 (E.lookupStrNamed env m1)
adamc@88 383 handle E.UnboundNamed _ => "UNBOUND_SGN_" ^ Int.toString m1
adamc@88 384
adamc@59 385 val m1s = if !debug then
adamc@59 386 m1x ^ "__" ^ Int.toString m1
adamc@59 387 else
adamc@59 388 m1x
adamc@88 389 in
adamc@59 390 p_list_sep (string ".") string (m1x :: ms @ [x])
adamc@59 391 end
adamc@31 392 | SgnError => string "<ERROR>"
adamc@31 393
adamc@123 394 fun p_vali env (x, n, t, e) = box [p_named x n,
adamc@123 395 space,
adamc@123 396 string ":",
adamc@123 397 space,
adamc@123 398 p_con env t,
adamc@123 399 space,
adamc@123 400 string "=",
adamc@123 401 space,
adamc@123 402 p_exp env e]
adamc@123 403
adamc@123 404 fun p_decl env (dAll as (d, _) : decl) =
adamc@3 405 case d of
adamc@31 406 DCon (x, n, k, c) => box [string "con",
adamc@31 407 space,
adamc@31 408 p_named x n,
adamc@31 409 space,
adamc@31 410 string "::",
adamc@31 411 space,
adamc@31 412 p_kind k,
adamc@31 413 space,
adamc@31 414 string "=",
adamc@31 415 space,
adamc@31 416 p_con env c]
adamc@123 417 | DVal vi => box [string "val",
adamc@123 418 space,
adamc@123 419 p_vali env vi]
adamc@123 420 | DValRec vis =>
adamc@123 421 let
adamc@123 422 val env = E.declBinds env dAll
adamc@123 423 in
adamc@123 424 box [string "val",
adamc@123 425 space,
adamc@123 426 string "rec",
adamc@123 427 space,
adamc@123 428 p_list_sep (box [newline, string "and", space]) (p_vali env) vis]
adamc@123 429 end
adamc@31 430
adamc@31 431 | DSgn (x, n, sgn) => box [string "signature",
adamc@31 432 space,
adamc@31 433 p_named x n,
adamc@31 434 space,
adamc@31 435 string "=",
adamc@31 436 space,
adamc@31 437 p_sgn env sgn]
adamc@31 438 | DStr (x, n, sgn, str) => box [string "structure",
adamc@31 439 space,
adamc@31 440 p_named x n,
adamc@31 441 space,
adamc@31 442 string ":",
adamc@31 443 space,
adamc@31 444 p_sgn env sgn,
adamc@31 445 space,
adamc@31 446 string "=",
adamc@31 447 space,
adamc@31 448 p_str env str]
adamc@48 449 | DFfiStr (x, n, sgn) => box [string "extern",
adamc@48 450 space,
adamc@48 451 string "structure",
adamc@48 452 space,
adamc@48 453 p_named x n,
adamc@48 454 space,
adamc@48 455 string ":",
adamc@48 456 space,
adamc@48 457 p_sgn env sgn]
adamc@88 458 | DConstraint (c1, c2) => box [string "constraint",
adamc@88 459 space,
adamc@88 460 p_con env c1,
adamc@88 461 space,
adamc@88 462 string "~",
adamc@88 463 space,
adamc@88 464 p_con env c2]
adamc@109 465 | DExport (_, sgn, str) => box [string "export",
adamc@110 466 space,
adamc@109 467 p_str env str,
adamc@109 468 space,
adamc@109 469 string ":",
adamc@109 470 space,
adamc@109 471 p_sgn env sgn]
adamc@31 472
adamc@31 473 and p_str env (str, _) =
adamc@31 474 case str of
adamc@31 475 StrConst ds => box [string "struct",
adamc@31 476 newline,
adamc@32 477 p_file env ds,
adamc@31 478 newline,
adamc@31 479 string "end"]
adamc@88 480 | StrVar n => ((string (#1 (E.lookupStrNamed env n)))
adamc@88 481 handle E.UnboundNamed _ => string ("UNBOUND_STR_" ^ Int.toString n))
adamc@34 482 | StrProj (str, s) => box [p_str env str,
adamc@34 483 string ".",
adamc@34 484 string s]
adamc@41 485 | StrFun (x, n, sgn, sgn', str) =>
adamc@41 486 let
adamc@41 487 val env' = E.pushStrNamedAs env x n sgn
adamc@41 488 in
adamc@41 489 box [string "functor",
adamc@41 490 space,
adamc@41 491 string "(",
adamc@41 492 string x,
adamc@41 493 space,
adamc@41 494 string ":",
adamc@41 495 space,
adamc@41 496 p_sgn env sgn,
adamc@41 497 string ")",
adamc@41 498 space,
adamc@41 499 string ":",
adamc@41 500 space,
adamc@41 501 p_sgn env' sgn',
adamc@41 502 space,
adamc@41 503 string "=>",
adamc@41 504 space,
adamc@41 505 p_str env' str]
adamc@41 506 end
adamc@44 507 | StrApp (str1, str2) => box [p_str env str1,
adamc@44 508 string "(",
adamc@44 509 p_str env str2,
adamc@44 510 string ")"]
adamc@31 511 | StrError => string "<ERROR>"
adamc@3 512
adamc@32 513 and p_file env file =
adamc@3 514 let
adamc@31 515 val (pds, _) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 516 (p_decl env d,
adamc@31 517 E.declBinds env d))
adamc@31 518 env file
adamc@3 519 in
adamc@3 520 p_list_sep newline (fn x => x) pds
adamc@3 521 end
adamc@3 522
adamc@3 523 end