Mercurial > urweb

annotate src/core_print.sml @ 184:98c29e3986d3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Push write inside case
author Adam Chlipala <adamc@hcoop.net>
date Sun, 03 Aug 2008 16:53:13 -0400
parents d11754ffe252
children 19ee24bffbc0
rev   line source
adamc@16 1 (* Copyright (c) 2008, Adam Chlipala
adamc@16 2 * All rights reserved.
adamc@16 3 *
adamc@16 4 * Redistribution and use in source and binary forms, with or without
adamc@16 5 * modification, are permitted provided that the following conditions are met:
adamc@16 6 *
adamc@16 7 * - Redistributions of source code must retain the above copyright notice,
adamc@16 8 * this list of conditions and the following disclaimer.
adamc@16 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@16 10 * this list of conditions and the following disclaimer in the documentation
adamc@16 11 * and/or other materials provided with the distribution.
adamc@16 12 * - The names of contributors may not be used to endorse or promote products
adamc@16 13 * derived from this software without specific prior written permission.
adamc@16 14 *
adamc@16 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@16 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@16 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@16 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@16 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@16 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@16 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@16 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@16 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@16 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@16 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@16 26 *)
adamc@16 27
adamc@16 28 (* Pretty-printing core Laconic/Web *)
adamc@16 29
adamc@16 30 structure CorePrint :> CORE_PRINT = struct
adamc@16 31
adamc@16 32 open Print.PD
adamc@16 33 open Print
adamc@16 34
adamc@16 35 open Core
adamc@16 36
adamc@16 37 structure E = CoreEnv
adamc@16 38
adamc@16 39 val debug = ref false
adamc@16 40
adamc@16 41 fun p_kind' par (k, _) =
adamc@16 42 case k of
adamc@16 43 KType => string "Type"
adamc@16 44 | KArrow (k1, k2) => parenIf par (box [p_kind' true k1,
adamc@16 45 space,
adamc@16 46 string "->",
adamc@16 47 space,
adamc@16 48 p_kind k2])
adamc@16 49 | KName => string "Name"
adamc@16 50 | KRecord k => box [string "{", p_kind k, string "}"]
adamc@87 51 | KUnit => string "Unit"
adamc@16 52
adamc@16 53 and p_kind k = p_kind' false k
adamc@16 54
adamc@16 55 fun p_con' par env (c, _) =
adamc@16 56 case c of
adamc@16 57 TFun (t1, t2) => parenIf par (box [p_con' true env t1,
adamc@16 58 space,
adamc@16 59 string "->",
adamc@16 60 space,
adamc@16 61 p_con env t2])
adamc@16 62 | TCFun (x, k, c) => parenIf par (box [string x,
adamc@16 63 space,
adamc@16 64 string "::",
adamc@16 65 space,
adamc@16 66 p_kind k,
adamc@16 67 space,
adamc@16 68 string "->",
adamc@16 69 space,
adamc@16 70 p_con (E.pushCRel env x k) c])
adamc@16 71 | TRecord (CRecord (_, xcs), _) => box [string "{",
adamc@16 72 p_list (fn (x, c) =>
adamc@20 73 box [p_name env x,
adamc@16 74 space,
adamc@16 75 string ":",
adamc@16 76 space,
adamc@16 77 p_con env c]) xcs,
adamc@16 78 string "}"]
adamc@16 79 | TRecord c => box [string "$",
adamc@16 80 p_con' true env c]
adamc@16 81
adamc@16 82 | CRel n =>
adamc@39 83 ((if !debug then
adamc@39 84 string (#1 (E.lookupCRel env n) ^ "_" ^ Int.toString n)
adamc@39 85 else
adamc@39 86 string (#1 (E.lookupCRel env n)))
adamc@39 87 handle E.UnboundRel _ => string ("UNBOUND_" ^ Int.toString n))
adamc@16 88 | CNamed n =>
adamc@39 89 ((if !debug then
adamc@39 90 string (#1 (E.lookupCNamed env n) ^ "__" ^ Int.toString n)
adamc@39 91 else
adamc@39 92 string (#1 (E.lookupCNamed env n)))
adamc@39 93 handle E.UnboundNamed _ => string ("UNBOUNDN_" ^ Int.toString n))
adamc@48 94 | CFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
adamc@16 95
adamc@16 96 | CApp (c1, c2) => parenIf par (box [p_con env c1,
adamc@16 97 space,
adamc@16 98 p_con' true env c2])
adamc@16 99 | CAbs (x, k, c) => parenIf par (box [string "fn",
adamc@16 100 space,
adamc@16 101 string x,
adamc@16 102 space,
adamc@16 103 string "::",
adamc@16 104 space,
adamc@16 105 p_kind k,
adamc@16 106 space,
adamc@16 107 string "=>",
adamc@16 108 space,
adamc@16 109 p_con (E.pushCRel env x k) c])
adamc@16 110
adamc@16 111 | CName s => box [string "#", string s]
adamc@16 112
adamc@16 113 | CRecord (k, xcs) =>
adamc@16 114 if !debug then
adamc@16 115 parenIf par (box [string "[",
adamc@16 116 p_list (fn (x, c) =>
adamc@16 117 box [p_con env x,
adamc@16 118 space,
adamc@16 119 string "=",
adamc@16 120 space,
adamc@16 121 p_con env c]) xcs,
adamc@16 122 string "]::",
adamc@16 123 p_kind k])
adamc@16 124 else
adamc@16 125 parenIf par (box [string "[",
adamc@16 126 p_list (fn (x, c) =>
adamc@16 127 box [p_con env x,
adamc@16 128 space,
adamc@16 129 string "=",
adamc@16 130 space,
adamc@16 131 p_con env c]) xcs,
adamc@16 132 string "]"])
adamc@16 133 | CConcat (c1, c2) => parenIf par (box [p_con' true env c1,
adamc@16 134 space,
adamc@16 135 string "++",
adamc@16 136 space,
adamc@16 137 p_con env c2])
adamc@69 138 | CFold _ => string "fold"
adamc@87 139 | CUnit => string "()"
adamc@16 140
adamc@16 141 and p_con env = p_con' false env
adamc@16 142
adamc@20 143 and p_name env (all as (c, _)) =
adamc@20 144 case c of
adamc@20 145 CName s => string s
adamc@20 146 | _ => p_con env all
adamc@20 147
adamc@109 148 fun p_enamed env n =
adamc@109 149 (if !debug then
adamc@109 150 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
adamc@109 151 else
adamc@109 152 string (#1 (E.lookupENamed env n)))
adamc@109 153 handle E.UnboundNamed _ => string ("UNBOUNDN_" ^ Int.toString n)
adamc@109 154
adamc@177 155 fun p_con_named env n =
adamc@177 156 (if !debug then
adamc@177 157 string (#1 (E.lookupConstructor env n) ^ "__" ^ Int.toString n)
adamc@177 158 else
adamc@177 159 string (#1 (E.lookupConstructor env n)))
adamc@177 160 handle E.UnboundNamed _ => string ("CONSTRUCTOR_" ^ Int.toString n)
adamc@177 161
adamc@177 162 fun p_patCon env pc =
adamc@177 163 case pc of
adamc@177 164 PConVar n => p_con_named env n
adamc@177 165 | PConFfi (m, x) => box [string "FFI(",
adamc@177 166 string m,
adamc@177 167 string ".",
adamc@177 168 string x,
adamc@177 169 string ")"]
adamc@177 170
adamc@177 171 fun p_pat' par env (p, _) =
adamc@177 172 case p of
adamc@177 173 PWild => string "_"
adamc@182 174 | PVar (s, _) => string s
adamc@177 175 | PPrim p => Prim.p_t p
adamc@177 176 | PCon (n, NONE) => p_patCon env n
adamc@177 177 | PCon (n, SOME p) => parenIf par (box [p_patCon env n,
adamc@177 178 space,
adamc@177 179 p_pat' true env p])
adamc@177 180 | PRecord xps =>
adamc@177 181 box [string "{",
adamc@182 182 p_list_sep (box [string ",", space]) (fn (x, p, _) =>
adamc@177 183 box [string x,
adamc@177 184 space,
adamc@177 185 string "=",
adamc@177 186 space,
adamc@177 187 p_pat env p]) xps,
adamc@177 188 string "}"]
adamc@177 189
adamc@177 190 and p_pat x = p_pat' false x
adamc@177 191
adamc@16 192 fun p_exp' par env (e, _) =
adamc@16 193 case e of
adamc@16 194 EPrim p => Prim.p_t p
adamc@16 195 | ERel n =>
adamc@39 196 ((if !debug then
adamc@39 197 string (#1 (E.lookupERel env n) ^ "_" ^ Int.toString n)
adamc@39 198 else
adamc@39 199 string (#1 (E.lookupERel env n)))
adamc@39 200 handle E.UnboundRel _ => string ("UNBOUND_" ^ Int.toString n))
adamc@109 201 | ENamed n => p_enamed env n
adamc@177 202 | ECon (n, NONE) => p_con_named env n
adamc@177 203 | ECon (n, SOME e) => parenIf par (box [p_con_named env n,
adamc@177 204 space,
adamc@177 205 p_exp' true env e])
adamc@48 206 | EFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
adamc@48 207 | EFfiApp (m, x, es) => box [string "FFI(",
adamc@48 208 string m,
adamc@48 209 string ".",
adamc@48 210 string x,
adamc@48 211 string "(",
adamc@48 212 p_list (p_exp env) es,
adamc@48 213 string "))"]
adamc@16 214 | EApp (e1, e2) => parenIf par (box [p_exp env e1,
adamc@16 215 space,
adamc@16 216 p_exp' true env e2])
adamc@26 217 | EAbs (x, t, _, e) => parenIf par (box [string "fn",
adamc@26 218 space,
adamc@26 219 string x,
adamc@26 220 space,
adamc@26 221 string ":",
adamc@26 222 space,
adamc@26 223 p_con env t,
adamc@26 224 space,
adamc@26 225 string "=>",
adamc@26 226 space,
adamc@26 227 p_exp (E.pushERel env x t) e])
adamc@16 228 | ECApp (e, c) => parenIf par (box [p_exp env e,
adamc@16 229 space,
adamc@16 230 string "[",
adamc@16 231 p_con env c,
adamc@16 232 string "]"])
adamc@16 233 | ECAbs (x, k, e) => parenIf par (box [string "fn",
adamc@16 234 space,
adamc@16 235 string x,
adamc@16 236 space,
adamc@16 237 string "::",
adamc@16 238 space,
adamc@16 239 p_kind k,
adamc@16 240 space,
adamc@16 241 string "=>",
adamc@16 242 space,
adamc@16 243 p_exp (E.pushCRel env x k) e])
adamc@16 244
adamc@16 245 | ERecord xes => box [string "{",
adamc@29 246 p_list (fn (x, e, _) =>
adamc@21 247 box [p_name env x,
adamc@16 248 space,
adamc@16 249 string "=",
adamc@16 250 space,
adamc@16 251 p_exp env e]) xes,
adamc@16 252 string "}"]
adamc@16 253 | EField (e, c, {field, rest}) =>
adamc@16 254 if !debug then
adamc@16 255 box [p_exp' true env e,
adamc@16 256 string ".",
adamc@16 257 p_con' true env c,
adamc@16 258 space,
adamc@16 259 string "[",
adamc@16 260 p_con env field,
adamc@16 261 space,
adamc@16 262 string " in ",
adamc@16 263 space,
adamc@16 264 p_con env rest,
adamc@16 265 string "]"]
adamc@16 266 else
adamc@16 267 box [p_exp' true env e,
adamc@16 268 string ".",
adamc@16 269 p_con' true env c]
adamc@149 270 | ECut (e, c, {field, rest}) =>
adamc@149 271 parenIf par (if !debug then
adamc@149 272 box [p_exp' true env e,
adamc@149 273 space,
adamc@149 274 string "--",
adamc@149 275 space,
adamc@149 276 p_con' true env c,
adamc@149 277 space,
adamc@149 278 string "[",
adamc@149 279 p_con env field,
adamc@149 280 space,
adamc@149 281 string " in ",
adamc@149 282 space,
adamc@149 283 p_con env rest,
adamc@149 284 string "]"]
adamc@149 285 else
adamc@149 286 box [p_exp' true env e,
adamc@149 287 space,
adamc@149 288 string "--",
adamc@149 289 space,
adamc@149 290 p_con' true env c])
adamc@73 291 | EFold _ => string "fold"
adamc@16 292
adamc@177 293 | ECase (e, pes, _) => parenIf par (box [string "case",
adamc@177 294 space,
adamc@177 295 p_exp env e,
adamc@177 296 space,
adamc@177 297 string "of",
adamc@177 298 space,
adamc@177 299 p_list_sep (box [space, string "|", space])
adamc@177 300 (fn (p, e) => box [p_pat env p,
adamc@177 301 space,
adamc@177 302 string "=>",
adamc@177 303 space,
adamc@177 304 p_exp env e]) pes])
adamc@177 305
adamc@102 306 | EWrite e => box [string "write(",
adamc@102 307 p_exp env e,
adamc@102 308 string ")"]
adamc@102 309
adamc@110 310 | EClosure (n, es) => box [string "CLOSURE(",
adamc@110 311 p_enamed env n,
adamc@110 312 p_list_sep (string "") (fn e => box [string ", ",
adamc@110 313 p_exp env e]) es,
adamc@110 314 string ")"]
adamc@110 315
adamc@16 316 and p_exp env = p_exp' false env
adamc@16 317
adamc@125 318 fun p_vali env (x, n, t, e, s) =
adamc@125 319 let
adamc@125 320 val xp = if !debug then
adamc@125 321 box [string x,
adamc@125 322 string "__",
adamc@125 323 string (Int.toString n)]
adamc@125 324 else
adamc@125 325 string x
adamc@125 326 in
adamc@125 327 box [xp,
adamc@125 328 space,
adamc@125 329 string "as",
adamc@125 330 space,
adamc@125 331 string s,
adamc@125 332 space,
adamc@125 333 string ":",
adamc@125 334 space,
adamc@125 335 p_con env t,
adamc@125 336 space,
adamc@125 337 string "=",
adamc@125 338 space,
adamc@125 339 p_exp env e]
adamc@125 340 end
adamc@125 341
adamc@144 342 fun p_export_kind ck =
adamc@144 343 case ck of
adamc@144 344 Link => string "link"
adamc@144 345 | Action => string "action"
adamc@144 346
adamc@163 347 fun p_datatype env (x, n, cons) =
adamc@163 348 let
adamc@163 349 val env = E.pushCNamed env x n (KType, ErrorMsg.dummySpan) NONE
adamc@163 350 in
adamc@163 351 box [string "datatype",
adamc@163 352 space,
adamc@163 353 string x,
adamc@163 354 space,
adamc@163 355 string "=",
adamc@163 356 space,
adamc@163 357 p_list_sep (box [space, string "|", space])
adamc@163 358 (fn (x, n, NONE) => if !debug then (string (x ^ "__" ^ Int.toString n))
adamc@163 359 else string x
adamc@163 360 | (x, _, SOME t) => box [if !debug then (string (x ^ "__" ^ Int.toString n))
adamc@163 361 else string x, space, string "of", space, p_con env t])
adamc@163 362 cons]
adamc@163 363 end
adamc@163 364
adamc@125 365 fun p_decl env (dAll as (d, _) : decl) =
adamc@16 366 case d of
adamc@16 367 DCon (x, n, k, c) =>
adamc@16 368 let
adamc@16 369 val xp = if !debug then
adamc@16 370 box [string x,
adamc@16 371 string "__",
adamc@16 372 string (Int.toString n)]
adamc@16 373 else
adamc@16 374 string x
adamc@16 375 in
adamc@16 376 box [string "con",
adamc@16 377 space,
adamc@16 378 xp,
adamc@16 379 space,
adamc@16 380 string "::",
adamc@16 381 space,
adamc@16 382 p_kind k,
adamc@16 383 space,
adamc@16 384 string "=",
adamc@16 385 space,
adamc@16 386 p_con env c]
adamc@16 387 end
adamc@163 388 | DDatatype x => p_datatype env x
adamc@125 389 | DVal vi => box [string "val",
adamc@125 390 space,
adamc@125 391 p_vali env vi]
adamc@125 392 | DValRec vis =>
adamc@16 393 let
adamc@125 394 val env = E.declBinds env dAll
adamc@16 395 in
adamc@16 396 box [string "val",
adamc@16 397 space,
adamc@125 398 string "rec",
adamc@16 399 space,
adamc@125 400 p_list_sep (box [newline, string "and", space]) (p_vali env) vis]
adamc@16 401 end
adamc@144 402 | DExport (ek, n) => box [string "export",
adamc@144 403 space,
adamc@144 404 p_export_kind ek,
adamc@144 405 space,
adamc@144 406 p_enamed env n,
adamc@144 407 space,
adamc@144 408 string "as",
adamc@144 409 space,
adamc@144 410 p_con env (#2 (E.lookupENamed env n))]
adamc@16 411
adamc@16 412 fun p_file env file =
adamc@16 413 let
adamc@31 414 val (pds, _) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 415 (p_decl env d,
adamc@31 416 E.declBinds env d))
adamc@16 417 env file
adamc@16 418 in
adamc@16 419 p_list_sep newline (fn x => x) pds
adamc@16 420 end
adamc@16 421
adamc@16 422 end