Mercurial > urweb

annotate src/mono_print.sml @ 589:102e81d975e3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Included a recursive function in JavaScript
author Adam Chlipala <adamc@hcoop.net>
date Thu, 01 Jan 2009 11:58:00 -0500
parents 1e589a60b86f
children 8f8771f32909
rev   line source
adamc@25 1 (* Copyright (c) 2008, Adam Chlipala
adamc@25 2 * All rights reserved.
adamc@25 3 *
adamc@25 4 * Redistribution and use in source and binary forms, with or without
adamc@25 5 * modification, are permitted provided that the following conditions are met:
adamc@25 6 *
adamc@25 7 * - Redistributions of source code must retain the above copyright notice,
adamc@25 8 * this list of conditions and the following disclaimer.
adamc@25 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@25 10 * this list of conditions and the following disclaimer in the documentation
adamc@25 11 * and/or other materials provided with the distribution.
adamc@25 12 * - The names of contributors may not be used to endorse or promote products
adamc@25 13 * derived from this software without specific prior written permission.
adamc@25 14 *
adamc@25 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@25 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@25 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@25 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@25 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@25 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@25 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@25 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@25 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@25 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@25 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@25 26 *)
adamc@25 27
adamc@244 28 (* Pretty-printing monomorphic Ur/Web *)
adamc@25 29
adamc@25 30 structure MonoPrint :> MONO_PRINT = struct
adamc@25 31
adamc@25 32 open Print.PD
adamc@25 33 open Print
adamc@25 34
adamc@25 35 open Mono
adamc@25 36
adamc@25 37 structure E = MonoEnv
adamc@25 38
adamc@25 39 val debug = ref false
adamc@25 40
adamc@252 41 val dummyt = (TRecord [], ErrorMsg.dummySpan)
adamc@252 42
adamc@25 43 fun p_typ' par env (t, _) =
adamc@25 44 case t of
adamc@25 45 TFun (t1, t2) => parenIf par (box [p_typ' true env t1,
adamc@25 46 space,
adamc@25 47 string "->",
adamc@25 48 space,
adamc@25 49 p_typ env t2])
adamc@25 50 | TRecord xcs => box [string "{",
adamc@25 51 p_list (fn (x, t) =>
adamc@25 52 box [string x,
adamc@25 53 space,
adamc@25 54 string ":",
adamc@25 55 space,
adamc@25 56 p_typ env t]) xcs,
adamc@25 57 string "}"]
adamc@196 58 | TDatatype (n, _) =>
adamc@178 59 ((if !debug then
adamc@178 60 string (#1 (E.lookupDatatype env n) ^ "__" ^ Int.toString n)
adamc@178 61 else
adamc@178 62 string (#1 (E.lookupDatatype env n)))
adamc@178 63 handle E.UnboundNamed _ => string ("UNBOUND_DATATYPE_" ^ Int.toString n))
adamc@51 64 | TFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
adamc@292 65 | TOption t => box [string "option(",
adamc@292 66 p_typ env t,
adamc@292 67 string ")"]
adamc@577 68 | TSource => string "source"
adamc@568 69 | TSignal t => box [string "signal(",
adamc@568 70 p_typ env t,
adamc@568 71 string ")"]
adamc@25 72
adamc@25 73 and p_typ env = p_typ' false env
adamc@25 74
adamc@109 75 fun p_enamed env n =
adamc@178 76 (if !debug then
adamc@178 77 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
adamc@178 78 else
adamc@178 79 string (#1 (E.lookupENamed env n)))
adamc@178 80 handle E.UnboundNamed _ => string ("UNBOUNDN_" ^ Int.toString n)
adamc@178 81
adamc@178 82 fun p_con_named env n =
adamc@178 83 (if !debug then
adamc@178 84 string (#1 (E.lookupConstructor env n) ^ "__" ^ Int.toString n)
adamc@178 85 else
adamc@178 86 string (#1 (E.lookupConstructor env n)))
adamc@178 87 handle E.UnboundNamed _ => string ("CONSTRUCTOR_" ^ Int.toString n)
adamc@178 88
adamc@178 89 fun p_patCon env pc =
adamc@178 90 case pc of
adamc@178 91 PConVar n => p_con_named env n
adamc@186 92 | PConFfi {mod = m, con, ...} => box [string "FFIC(",
adamc@185 93 string m,
adamc@185 94 string ".",
adamc@185 95 string con,
adamc@185 96 string ")"]
adamc@178 97
adamc@178 98 fun p_pat' par env (p, _) =
adamc@178 99 case p of
adamc@178 100 PWild => string "_"
adamc@182 101 | PVar (s, _) => string s
adamc@178 102 | PPrim p => Prim.p_t p
adamc@188 103 | PCon (_, n, NONE) => p_patCon env n
adamc@188 104 | PCon (_, n, SOME p) => parenIf par (box [p_patCon env n,
adamc@288 105 space,
adamc@288 106 p_pat' true env p])
adamc@178 107 | PRecord xps =>
adamc@178 108 box [string "{",
adamc@182 109 p_list_sep (box [string ",", space]) (fn (x, p, _) =>
adamc@178 110 box [string x,
adamc@178 111 space,
adamc@178 112 string "=",
adamc@178 113 space,
adamc@178 114 p_pat env p]) xps,
adamc@178 115 string "}"]
adamc@288 116 | PNone _ => string "None"
adamc@288 117 | PSome (_, p) => box [string "Some",
adamc@288 118 space,
adamc@288 119 p_pat' true env p]
adamc@178 120
adamc@178 121 and p_pat x = p_pat' false x
adamc@109 122
adamc@25 123 fun p_exp' par env (e, _) =
adamc@25 124 case e of
adamc@25 125 EPrim p => Prim.p_t p
adamc@25 126 | ERel n =>
adamc@178 127 ((if !debug then
adamc@178 128 string (#1 (E.lookupERel env n) ^ "_" ^ Int.toString n)
adamc@178 129 else
adamc@178 130 string (#1 (E.lookupERel env n)))
adamc@178 131 handle E.UnboundRel _ => string ("UNBOUND_" ^ Int.toString n))
adamc@109 132 | ENamed n => p_enamed env n
adamc@188 133 | ECon (_, pc, NONE) => p_patCon env pc
adamc@188 134 | ECon (_, pc, SOME e) => parenIf par (box [p_patCon env pc,
adamc@188 135 space,
adamc@188 136 p_exp' true env e])
adamc@297 137 | ENone _ => string "None"
adamc@290 138 | ESome (_, e) => parenIf par (box [string "Some",
adamc@290 139 space,
adamc@290 140 p_exp' true env e])
adamc@109 141
adamc@51 142 | EFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
adamc@51 143 | EFfiApp (m, x, es) => box [string "FFI(",
adamc@51 144 string m,
adamc@51 145 string ".",
adamc@51 146 string x,
adamc@51 147 string "(",
adamc@51 148 p_list (p_exp env) es,
adamc@51 149 string "))"]
adamc@25 150 | EApp (e1, e2) => parenIf par (box [p_exp env e1,
adamc@25 151 space,
adamc@25 152 p_exp' true env e2])
adamc@252 153 | EAbs (x, t, _, e) => parenIf true (box [string "fn",
adamc@252 154 space,
adamc@252 155 string x,
adamc@252 156 space,
adamc@252 157 string ":",
adamc@252 158 space,
adamc@252 159 p_typ env t,
adamc@252 160 space,
adamc@252 161 string "=>",
adamc@252 162 space,
adamc@252 163 p_exp (E.pushERel env x t NONE) e])
adamc@25 164
adamc@387 165 | EUnop (s, e) => parenIf true (box [string s,
adamc@387 166 space,
adamc@387 167 p_exp' true env e])
adamc@387 168 | EBinop (s, e1, e2) => parenIf true (box [p_exp' true env e1,
adamc@387 169 space,
adamc@387 170 string s,
adamc@387 171 space,
adamc@387 172 p_exp' true env e2])
adamc@387 173
adamc@25 174 | ERecord xes => box [string "{",
adamc@29 175 p_list (fn (x, e, _) =>
adamc@25 176 box [string x,
adamc@25 177 space,
adamc@25 178 string "=",
adamc@25 179 space,
adamc@25 180 p_exp env e]) xes,
adamc@25 181 string "}"]
adamc@25 182 | EField (e, x) =>
adamc@25 183 box [p_exp' true env e,
adamc@25 184 string ".",
adamc@25 185 string x]
adamc@25 186
adamc@252 187 | ECase (e, pes, _) => parenIf true (box [string "case",
adamc@252 188 space,
adamc@252 189 p_exp env e,
adamc@252 190 space,
adamc@252 191 string "of",
adamc@252 192 space,
adamc@252 193 p_list_sep (box [space, string "|", space])
adamc@252 194 (fn (p, e) => box [p_pat env p,
adamc@252 195 space,
adamc@252 196 string "=>",
adamc@252 197 space,
adamc@252 198 p_exp (E.patBinds env p) e]) pes])
adamc@94 199
adamc@283 200 | EError (e, t) => box [string "(error",
adamc@283 201 space,
adamc@283 202 p_exp env e,
adamc@283 203 space,
adamc@283 204 string ":",
adamc@283 205 space,
adamc@283 206 p_typ env t,
adamc@283 207 string ")"]
adamc@283 208
adamc@331 209 | EStrcat (e1, e2) => parenIf par (box [p_exp' true env e1,
adamc@331 210 space,
adamc@331 211 string "^",
adamc@331 212 space,
adamc@331 213 p_exp env e2])
adamc@94 214
adamc@102 215 | EWrite e => box [string "write(",
adamc@102 216 p_exp env e,
adamc@102 217 string ")"]
adamc@102 218
adamc@578 219 | ESeq (e1, e2) => box [string "(",
adamc@578 220 p_exp env e1,
adamc@106 221 string ";",
adamc@106 222 space,
adamc@578 223 p_exp env e2,
adamc@578 224 string ")"]
adamc@252 225 | ELet (x, t, e1, e2) => box [string "(let",
adamc@251 226 space,
adamc@251 227 string x,
adamc@251 228 space,
adamc@251 229 string ":",
adamc@251 230 space,
adamc@251 231 p_typ env t,
adamc@251 232 space,
adamc@251 233 string "=",
adamc@251 234 space,
adamc@252 235 string "(",
adamc@251 236 p_exp env e1,
adamc@252 237 string ")",
adamc@251 238 space,
adamc@251 239 string "in",
adamc@251 240 space,
adamc@252 241 string "(",
adamc@252 242 p_exp (E.pushERel env x t NONE) e2,
adamc@252 243 string "))"]
adamc@106 244
adamc@111 245 | EClosure (n, es) => box [string "CLOSURE(",
adamc@111 246 p_enamed env n,
adamc@111 247 p_list_sep (string "") (fn e => box [string ", ",
adamc@111 248 p_exp env e]) es,
adamc@111 249 string ")"]
adamc@111 250
adamc@252 251 | EQuery {exps, tables, state, query, body, initial} =>
adamc@252 252 box [string "query[",
adamc@252 253 p_list (fn (x, t) => box [string x, space, string ":", space, p_typ env t]) exps,
adamc@252 254 string "] [",
adamc@252 255 p_list (fn (x, xts) => box [string x,
adamc@252 256 space,
adamc@252 257 string ":",
adamc@252 258 space,
adamc@252 259 string "{",
adamc@252 260 p_list (fn (x, t) => box [string x, space, string ":", space, p_typ env t]) xts,
adamc@252 261 string "}"]) tables,
adamc@252 262 string "] [",
adamc@252 263 p_typ env state,
adamc@252 264 string "]",
adamc@252 265 space,
adamc@252 266 p_exp env query,
adamc@252 267 space,
adamc@252 268 string "initial",
adamc@252 269 space,
adamc@252 270 p_exp env initial,
adamc@252 271 space,
adamc@252 272 string "in",
adamc@252 273 space,
adamc@252 274 p_exp (E.pushERel (E.pushERel env "r" dummyt NONE) "acc" dummyt NONE) body]
adamc@307 275 | EDml e => box [string "dml(",
adamc@307 276 p_exp env e,
adamc@307 277 string ")"]
adamc@338 278 | ENextval e => box [string "nextval(",
adamc@338 279 p_exp env e,
adamc@338 280 string ")"]
adamc@463 281 | EUnurlify (e, _) => box [string "unurlify(",
adamc@463 282 p_exp env e,
adamc@463 283 string ")"]
adamc@578 284 | EJavaScript (_, e, NONE) => box [string "JavaScript(",
adamc@578 285 p_exp env e,
adamc@578 286 string ")"]
adamc@578 287 | EJavaScript (_, _, SOME e) => p_exp env e
adamc@568 288
adamc@568 289 | ESignalReturn e => box [string "Return(",
adamc@568 290 p_exp env e,
adamc@568 291 string ")"]
adamc@574 292 | ESignalBind (e1, e2) => box [string "Bind(",
adamc@572 293 p_exp env e1,
adamc@572 294 string ",",
adamc@572 295 space,
adamc@572 296 p_exp env e2,
adamc@572 297 string ")"]
adamc@574 298 | ESignalSource e => box [string "Source(",
adamc@574 299 p_exp env e,
adamc@574 300 string ")"]
adamc@252 301
adamc@25 302 and p_exp env = p_exp' false env
adamc@25 303
adamc@126 304 fun p_vali env (x, n, t, e, s) =
adamc@126 305 let
adamc@126 306 val xp = if !debug then
adamc@126 307 box [string x,
adamc@126 308 string "__",
adamc@126 309 string (Int.toString n)]
adamc@126 310 else
adamc@126 311 string x
adamc@126 312 in
adamc@126 313 box [xp,
adamc@126 314 space,
adamc@126 315 string "as",
adamc@126 316 space,
adamc@126 317 string s,
adamc@126 318 space,
adamc@126 319 string ":",
adamc@126 320 space,
adamc@126 321 p_typ env t,
adamc@126 322 space,
adamc@126 323 string "=",
adamc@126 324 space,
adamc@126 325 p_exp env e]
adamc@126 326 end
adamc@126 327
adamc@164 328 fun p_datatype env (x, n, cons) =
adamc@164 329 let
adamc@168 330 val env = E.pushDatatype env x n cons
adamc@164 331 in
adamc@164 332 box [string "datatype",
adamc@164 333 space,
adamc@164 334 string x,
adamc@164 335 space,
adamc@164 336 string "=",
adamc@164 337 space,
adamc@164 338 p_list_sep (box [space, string "|", space])
adamc@164 339 (fn (x, n, NONE) => if !debug then (string (x ^ "__" ^ Int.toString n))
adamc@164 340 else string x
adamc@164 341 | (x, _, SOME t) => box [if !debug then (string (x ^ "__" ^ Int.toString n))
adamc@164 342 else string x, space, string "of", space, p_typ env t])
adamc@164 343 cons]
adamc@164 344 end
adamc@164 345
adamc@126 346 fun p_decl env (dAll as (d, _) : decl) =
adamc@25 347 case d of
adamc@164 348 DDatatype x => p_datatype env x
adamc@164 349 | DVal vi => box [string "val",
adamc@126 350 space,
adamc@126 351 p_vali env vi]
adamc@126 352 | DValRec vis =>
adamc@25 353 let
adamc@126 354 val env = E.declBinds env dAll
adamc@25 355 in
adamc@25 356 box [string "val",
adamc@25 357 space,
adamc@126 358 string "rec",
adamc@25 359 space,
adamc@126 360 p_list_sep (box [newline, string "and", space]) (p_vali env) vis]
adamc@25 361 end
adamc@109 362
adamc@144 363 | DExport (ek, s, n, ts) => box [string "export",
adamc@144 364 space,
adamc@144 365 CorePrint.p_export_kind ek,
adamc@144 366 space,
adamc@144 367 p_enamed env n,
adamc@144 368 space,
adamc@144 369 string "as",
adamc@144 370 space,
adamc@144 371 string s,
adamc@144 372 p_list_sep (string "") (fn t => box [space,
adamc@144 373 string "(",
adamc@144 374 p_typ env t,
adamc@144 375 string ")"]) ts]
adamc@271 376
adamc@273 377 | DTable (s, xts) => box [string "(* SQL table ",
adamc@273 378 string s,
adamc@273 379 space,
adamc@273 380 string ":",
adamc@273 381 space,
adamc@273 382 p_list (fn (x, t) => box [string x,
adamc@273 383 space,
adamc@273 384 string ":",
adamc@273 385 space,
adamc@273 386 p_typ env t]) xts,
adamc@273 387 space,
adamc@273 388 string "*)"]
adamc@338 389 | DSequence s => box [string "(* SQL sequence ",
adamc@338 390 string s,
adamc@338 391 string "*)"]
adamc@271 392 | DDatabase s => box [string "database",
adamc@271 393 space,
adamc@271 394 string s]
adamc@569 395 | DJavaScript s => box [string "JavaScript(",
adamc@569 396 string s,
adamc@569 397 string ")"]
adamc@569 398
adamc@100 399
adamc@25 400 fun p_file env file =
adamc@25 401 let
adamc@31 402 val (pds, _) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 403 (p_decl env d,
adamc@31 404 E.declBinds env d))
adamc@25 405 env file
adamc@25 406 in
adamc@25 407 p_list_sep newline (fn x => x) pds
adamc@25 408 end
adamc@25 409
adamc@25 410 end