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annotate src/jscomp.sml @ 646:fb2a0e76dcef

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ListEdit demo, minus prose
author Adam Chlipala <adamc@hcoop.net>
date Tue, 10 Mar 2009 12:44:40 -0400
parents b98f547a6a45
children 96ebc6bdb5a0
rev   line source
adamc@567 1 (* Copyright (c) 2008, Adam Chlipala
adamc@567 2 * All rights reserved.
adamc@567 3 *
adamc@567 4 * Redistribution and use in source and binary forms, with or without
adamc@567 5 * modification, are permitted provided that the following conditions are met:
adamc@567 6 *
adamc@567 7 * - Redistributions of source code must retain the above copyright notice,
adamc@567 8 * this list of conditions and the following disclaimer.
adamc@567 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@567 10 * this list of conditions and the following disclaimer in the documentation
adamc@567 11 * and/or other materials provided with the distribution.
adamc@567 12 * - The names of contributors may not be used to endorse or promote products
adamc@567 13 * derived from this software without specific prior written permission.
adamc@567 14 *
adamc@567 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@567 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@567 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@567 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@567 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@567 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@567 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@567 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@567 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@567 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@567 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@567 26 *)
adamc@567 27
adamc@567 28 structure JsComp :> JSCOMP = struct
adamc@567 29
adamc@567 30 open Mono
adamc@567 31
adamc@567 32 structure EM = ErrorMsg
adamc@567 33 structure E = MonoEnv
adamc@567 34 structure U = MonoUtil
adamc@567 35
adamc@589 36 structure IS = IntBinarySet
adamc@589 37 structure IM = IntBinaryMap
adamc@589 38
adamc@572 39 val funcs = [(("Basis", "alert"), "alert"),
adamc@601 40 (("Basis", "get_client_source"), "sg"),
adamc@586 41 (("Basis", "htmlifyBool"), "bs"),
adamc@583 42 (("Basis", "htmlifyFloat"), "ts"),
adamc@582 43 (("Basis", "htmlifyInt"), "ts"),
adamc@597 44 (("Basis", "htmlifyString"), "eh"),
adamc@579 45 (("Basis", "new_client_source"), "sc"),
adamc@614 46 (("Basis", "set_client_source"), "sv"),
adamc@614 47 (("Basis", "urlifyInt"), "ts"),
adamc@614 48 (("Basis", "urlifyFloat"), "ts"),
adamc@614 49 (("Basis", "urlifyString"), "escape")]
adamc@572 50
adamc@572 51 structure FM = BinaryMapFn(struct
adamc@572 52 type ord_key = string * string
adamc@572 53 fun compare ((m1, x1), (m2, x2)) =
adamc@572 54 Order.join (String.compare (m1, m2),
adamc@572 55 fn () => String.compare (x1, x2))
adamc@572 56 end)
adamc@572 57
adamc@572 58 val funcs = foldl (fn ((k, v), m) => FM.insert (m, k, v)) FM.empty funcs
adamc@572 59
adamc@572 60 fun ffi k = FM.find (funcs, k)
adamc@572 61
adamc@567 62 type state = {
adamc@567 63 decls : decl list,
adamc@589 64 script : string list,
adamc@595 65 included : IS.set,
adamc@595 66 injectors : int IM.map,
adamc@638 67 decoders : int IM.map,
adamc@595 68 maxName : int
adamc@567 69 }
adamc@567 70
adamc@567 71 fun varDepth (e, _) =
adamc@567 72 case e of
adamc@567 73 EPrim _ => 0
adamc@567 74 | ERel _ => 0
adamc@567 75 | ENamed _ => 0
adamc@567 76 | ECon (_, _, NONE) => 0
adamc@567 77 | ECon (_, _, SOME e) => varDepth e
adamc@567 78 | ENone _ => 0
adamc@567 79 | ESome (_, e) => varDepth e
adamc@567 80 | EFfi _ => 0
adamc@567 81 | EFfiApp (_, _, es) => foldl Int.max 0 (map varDepth es)
adamc@567 82 | EApp (e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@567 83 | EAbs _ => 0
adamc@567 84 | EUnop (_, e) => varDepth e
adamc@567 85 | EBinop (_, e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@567 86 | ERecord xes => foldl Int.max 0 (map (fn (_, e, _) => varDepth e) xes)
adamc@567 87 | EField (e, _) => varDepth e
adamc@567 88 | ECase (e, pes, _) =>
adamc@567 89 foldl Int.max (varDepth e)
adamc@567 90 (map (fn (p, e) => E.patBindsN p + varDepth e) pes)
adamc@567 91 | EStrcat (e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@567 92 | EError (e, _) => varDepth e
adamc@567 93 | EWrite e => varDepth e
adamc@567 94 | ESeq (e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@567 95 | ELet (_, _, e1, e2) => Int.max (varDepth e1, 1 + varDepth e2)
adamc@567 96 | EClosure _ => 0
adamc@567 97 | EQuery _ => 0
adamc@567 98 | EDml _ => 0
adamc@567 99 | ENextval _ => 0
adamc@567 100 | EUnurlify _ => 0
adamc@567 101 | EJavaScript _ => 0
adamc@568 102 | ESignalReturn e => varDepth e
adamc@572 103 | ESignalBind (e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@574 104 | ESignalSource e => varDepth e
adamc@614 105 | EServerCall (e, ek, _) => Int.max (varDepth e, varDepth ek)
adamc@567 106
adamc@591 107 fun closedUpto d =
adamc@591 108 let
adamc@591 109 fun cu inner (e, _) =
adamc@591 110 case e of
adamc@591 111 EPrim _ => true
adamc@591 112 | ERel n => n < inner orelse n - inner >= d
adamc@591 113 | ENamed _ => true
adamc@591 114 | ECon (_, _, NONE) => true
adamc@591 115 | ECon (_, _, SOME e) => cu inner e
adamc@591 116 | ENone _ => true
adamc@591 117 | ESome (_, e) => cu inner e
adamc@591 118 | EFfi _ => true
adamc@591 119 | EFfiApp (_, _, es) => List.all (cu inner) es
adamc@591 120 | EApp (e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 121 | EAbs (_, _, _, e) => cu (inner + 1) e
adamc@591 122 | EUnop (_, e) => cu inner e
adamc@591 123 | EBinop (_, e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 124 | ERecord xes => List.all (fn (_, e, _) => cu inner e) xes
adamc@591 125 | EField (e, _) => cu inner e
adamc@591 126 | ECase (e, pes, _) =>
adamc@591 127 cu inner e
adamc@591 128 andalso List.all (fn (p, e) => cu (inner + E.patBindsN p) e) pes
adamc@591 129 | EStrcat (e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 130 | EError (e, _) => cu inner e
adamc@591 131 | EWrite e => cu inner e
adamc@591 132 | ESeq (e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 133 | ELet (_, _, e1, e2) => cu inner e1 andalso cu (inner + 1) e2
adamc@591 134 | EClosure (_, es) => List.all (cu inner) es
adamc@591 135 | EQuery {query, body, initial, ...} =>
adamc@591 136 cu inner query
adamc@591 137 andalso cu (inner + 2) body
adamc@591 138 andalso cu inner initial
adamc@591 139 | EDml e => cu inner e
adamc@591 140 | ENextval e => cu inner e
adamc@591 141 | EUnurlify (e, _) => cu inner e
adamc@591 142 | EJavaScript (_, e, _) => cu inner e
adamc@591 143 | ESignalReturn e => cu inner e
adamc@591 144 | ESignalBind (e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 145 | ESignalSource e => cu inner e
adamc@614 146 | EServerCall (e, ek, _) => cu inner e andalso cu inner ek
adamc@591 147 in
adamc@591 148 cu 0
adamc@591 149 end
adamc@591 150
adamc@568 151 fun strcat loc es =
adamc@568 152 case es of
adamc@568 153 [] => (EPrim (Prim.String ""), loc)
adamc@568 154 | [x] => x
adamc@568 155 | x :: es' => (EStrcat (x, strcat loc es'), loc)
adamc@568 156
adamc@589 157 fun process file =
adamc@567 158 let
adamc@596 159 val (someTs, nameds) =
adamc@596 160 foldl (fn ((DVal (_, n, t, e, _), _), (someTs, nameds)) => (someTs, IM.insert (nameds, n, e))
adamc@596 161 | ((DValRec vis, _), (someTs, nameds)) =>
adamc@596 162 (someTs, foldl (fn ((_, n, _, e, _), nameds) => IM.insert (nameds, n, e))
adamc@596 163 nameds vis)
adamc@596 164 | ((DDatatype (_, _, cs), _), state as (someTs, nameds)) =>
adamc@596 165 if ElabUtil.classifyDatatype cs = Option then
adamc@596 166 (foldl (fn ((_, n, SOME t), someTs) => IM.insert (someTs, n, t)
adamc@596 167 | (_, someTs) => someTs) someTs cs,
adamc@596 168 nameds)
adamc@596 169 else
adamc@596 170 state
adamc@595 171 | (_, state) => state)
adamc@596 172 (IM.empty, IM.empty) file
adamc@567 173
adamc@590 174 fun str loc s = (EPrim (Prim.String s), loc)
adamc@590 175
adamc@594 176 fun isNullable (t, _) =
adamc@594 177 case t of
adamc@594 178 TOption _ => true
adamc@594 179 | TRecord [] => true
adamc@594 180 | _ => false
adamc@594 181
adamc@593 182 fun quoteExp loc (t : typ) (e, st) =
adamc@590 183 case #1 t of
adamc@593 184 TSource => (strcat loc [str loc "s",
adamc@593 185 (EFfiApp ("Basis", "htmlifyInt", [e]), loc)], st)
adamc@590 186
adamc@593 187 | TRecord [] => (str loc "null", st)
adamc@593 188 | TRecord [(x, t)] =>
adamc@593 189 let
adamc@593 190 val (e, st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 191 in
adamc@593 192 (strcat loc [str loc ("{_" ^ x ^ ":"),
adamc@593 193 e,
adamc@593 194 str loc "}"], st)
adamc@593 195 end
adamc@593 196 | TRecord ((x, t) :: xts) =>
adamc@593 197 let
adamc@593 198 val (e', st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 199 val (es, st) = ListUtil.foldlMap
adamc@593 200 (fn ((x, t), st) =>
adamc@593 201 let
adamc@593 202 val (e, st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 203 in
adamc@593 204 (strcat loc [str loc (",_" ^ x ^ ":"), e], st)
adamc@593 205 end)
adamc@593 206 st xts
adamc@593 207 in
adamc@593 208 (strcat loc (str loc ("{_" ^ x ^ ":")
adamc@593 209 :: e'
adamc@593 210 :: es
adamc@593 211 @ [str loc "}"]), st)
adamc@593 212 end
adamc@590 213
adamc@593 214 | TFfi ("Basis", "string") => ((EFfiApp ("Basis", "jsifyString", [e]), loc), st)
adamc@593 215 | TFfi ("Basis", "int") => ((EFfiApp ("Basis", "htmlifyInt", [e]), loc), st)
adamc@593 216 | TFfi ("Basis", "float") => ((EFfiApp ("Basis", "htmlifyFloat", [e]), loc), st)
adamc@593 217
adamc@593 218 | TFfi ("Basis", "bool") => ((ECase (e,
adamc@593 219 [((PCon (Enum, PConFfi {mod = "Basis",
adamc@593 220 datatyp = "bool",
adamc@593 221 con = "True",
adamc@593 222 arg = NONE}, NONE), loc),
adamc@593 223 str loc "true"),
adamc@593 224 ((PCon (Enum, PConFfi {mod = "Basis",
adamc@593 225 datatyp = "bool",
adamc@593 226 con = "False",
adamc@593 227 arg = NONE}, NONE), loc),
adamc@593 228 str loc "false")],
adamc@593 229 {disc = (TFfi ("Basis", "bool"), loc),
adamc@593 230 result = (TFfi ("Basis", "string"), loc)}), loc),
adamc@593 231 st)
adamc@592 232
adamc@594 233 | TOption t =>
adamc@594 234 let
adamc@594 235 val (e', st) = quoteExp loc t ((ERel 0, loc), st)
adamc@594 236 in
adamc@594 237 ((ECase (e,
adamc@594 238 [((PNone t, loc),
adamc@594 239 str loc "null"),
adamc@594 240 ((PSome (t, (PVar ("x", t), loc)), loc),
adamc@594 241 if isNullable t then
adamc@594 242 strcat loc [str loc "{v:", e', str loc "}"]
adamc@594 243 else
adamc@594 244 e')],
adamc@594 245 {disc = (TOption t, loc),
adamc@594 246 result = (TFfi ("Basis", "string"), loc)}), loc),
adamc@594 247 st)
adamc@594 248 end
adamc@594 249
adamc@595 250 | TDatatype (n, ref (dk, cs)) =>
adamc@595 251 (case IM.find (#injectors st, n) of
adamc@595 252 SOME n' => ((EApp ((ENamed n', loc), e), loc), st)
adamc@595 253 | NONE =>
adamc@595 254 let
adamc@595 255 val n' = #maxName st
adamc@595 256 val st = {decls = #decls st,
adamc@595 257 script = #script st,
adamc@595 258 included = #included st,
adamc@595 259 injectors = IM.insert (#injectors st, n, n'),
adamc@638 260 decoders = #decoders st,
adamc@595 261 maxName = n' + 1}
adamc@595 262
adamc@595 263 val (pes, st) = ListUtil.foldlMap
adamc@595 264 (fn ((_, cn, NONE), st) =>
adamc@595 265 (((PCon (dk, PConVar cn, NONE), loc),
adamc@596 266 case dk of
adamc@596 267 Option => str loc "null"
adamc@596 268 | _ => str loc (Int.toString cn)),
adamc@595 269 st)
adamc@595 270 | ((_, cn, SOME t), st) =>
adamc@595 271 let
adamc@595 272 val (e, st) = quoteExp loc t ((ERel 0, loc), st)
adamc@595 273 in
adamc@595 274 (((PCon (dk, PConVar cn, SOME (PVar ("x", t), loc)), loc),
adamc@596 275 case dk of
adamc@596 276 Option =>
adamc@596 277 if isNullable t then
adamc@638 278 strcat loc [str loc "{v:",
adamc@596 279 e,
adamc@596 280 str loc "}"]
adamc@596 281 else
adamc@596 282 e
adamc@597 283 | _ => strcat loc [str loc ("{n:" ^ Int.toString cn
adamc@597 284 ^ ",v:"),
adamc@597 285 e,
adamc@597 286 str loc "}"]),
adamc@595 287 st)
adamc@595 288 end)
adamc@595 289 st cs
adamc@595 290
adamc@595 291 val s = (TFfi ("Basis", "string"), loc)
adamc@595 292 val body = (ECase ((ERel 0, loc), pes,
adamc@595 293 {disc = t, result = s}), loc)
adamc@595 294 val body = (EAbs ("x", t, s, body), loc)
adamc@595 295
adamc@595 296 val st = {decls = (DValRec [("jsify", n', (TFun (t, s), loc),
adamc@595 297 body, "jsify")], loc) :: #decls st,
adamc@595 298 script = #script st,
adamc@595 299 included = #included st,
adamc@595 300 injectors = #injectors st,
adamc@638 301 decoders= #decoders st,
adamc@595 302 maxName = #maxName st}
adamc@595 303 in
adamc@595 304 ((EApp ((ENamed n', loc), e), loc), st)
adamc@595 305 end)
adamc@595 306
adamc@590 307 | _ => (EM.errorAt loc "Don't know how to embed type in JavaScript";
adamc@590 308 Print.prefaces "Can't embed" [("t", MonoPrint.p_typ MonoEnv.empty t)];
adamc@593 309 (str loc "ERROR", st))
adamc@590 310
adamc@613 311 fun unurlifyExp loc (t : typ, st) =
adamc@613 312 case #1 t of
adamc@613 313 TRecord [] => ("null", st)
adamc@613 314 | TRecord [(x, t)] =>
adamc@613 315 let
adamc@613 316 val (e, st) = unurlifyExp loc (t, st)
adamc@613 317 in
adamc@613 318 ("{_" ^ x ^ ":" ^ e ^ "}",
adamc@613 319 st)
adamc@613 320 end
adamc@613 321 | TRecord ((x, t) :: xts) =>
adamc@613 322 let
adamc@613 323 val (e', st) = unurlifyExp loc (t, st)
adamc@613 324 val (es, st) = ListUtil.foldlMap
adamc@638 325 (fn ((x, t), st) =>
adamc@638 326 let
adamc@638 327 val (e, st) = unurlifyExp loc (t, st)
adamc@638 328 in
adamc@638 329 (",_" ^ x ^ ":" ^ e, st)
adamc@638 330 end)
adamc@638 331 st xts
adamc@613 332 in
adamc@613 333 (String.concat ("{_"
adamc@613 334 :: x
adamc@613 335 :: ":"
adamc@613 336 :: e'
adamc@613 337 :: es
adamc@613 338 @ ["}"]), st)
adamc@613 339 end
adamc@613 340
adamc@641 341 | TFfi ("Basis", "string") => ("unescape(t[i++])", st)
adamc@613 342 | TFfi ("Basis", "int") => ("parseInt(t[i++])", st)
adamc@613 343 | TFfi ("Basis", "float") => ("parseFloat(t[i++])", st)
adamc@613 344
adamc@613 345 | TFfi ("Basis", "bool") => ("t[i++] == \"True\"", st)
adamc@613 346
adamc@638 347 | TOption t =>
adamc@613 348 let
adamc@638 349 val (e, st) = unurlifyExp loc (t, st)
adamc@638 350 val e = if isNullable t then
adamc@638 351 "{v:" ^ e ^ "}"
adamc@638 352 else
adamc@638 353 e
adamc@613 354 in
adamc@638 355 ("(uu=t[i++],uu==\"Some\"?" ^ e ^ ":null)", st)
adamc@638 356 end
adamc@613 357
adamc@638 358 | TDatatype (n, ref (dk, cs)) =>
adamc@638 359 (case IM.find (#decoders st, n) of
adamc@638 360 SOME n' => ("(tmp=_n" ^ Int.toString n' ^ "(t,i),i=tmp._1,tmp._2)", st)
adamc@613 361 | NONE =>
adamc@613 362 let
adamc@613 363 val n' = #maxName st
adamc@613 364 val st = {decls = #decls st,
adamc@613 365 script = #script st,
adamc@613 366 included = #included st,
adamc@638 367 injectors = #injectors st,
adamc@638 368 decoders = IM.insert (#decoders st, n, n'),
adamc@613 369 maxName = n' + 1}
adamc@613 370
adamc@638 371 val (e, st) = foldl (fn ((x, cn, NONE), (e, st)) =>
adamc@638 372 ("x==\"" ^ x ^ "\"?"
adamc@638 373 ^ (case dk of
adamc@638 374 Option => "null"
adamc@638 375 | _ => Int.toString cn)
adamc@638 376 ^ ":" ^ e,
adamc@613 377 st)
adamc@638 378 | ((x, cn, SOME t), (e, st)) =>
adamc@613 379 let
adamc@638 380 val (e', st) = unurlifyExp loc (t, st)
adamc@613 381 in
adamc@638 382 ("x==\"" ^ x ^ "\"?"
adamc@638 383 ^ (case dk of
adamc@638 384 Option =>
adamc@638 385 if isNullable t then
adamc@638 386 "{v:" ^ e' ^ "}"
adamc@638 387 else
adamc@638 388 e'
adamc@638 389 | _ => "{n:" ^ Int.toString cn ^ ",v:" ^ e' ^ "}")
adamc@638 390 ^ ":" ^ e,
adamc@613 391 st)
adamc@613 392 end)
adamc@638 393 ("pf()", st) cs
adamc@613 394
adamc@638 395 val body = "function _n" ^ Int.toString n' ^ "(t,i){var x=t[i++];var r="
adamc@638 396 ^ e ^ ";return {_1:i,_2:r}}\n\n"
adamc@613 397
adamc@638 398 val st = {decls = #decls st,
adamc@638 399 script = body :: #script st,
adamc@613 400 included = #included st,
adamc@613 401 injectors = #injectors st,
adamc@638 402 decoders = #decoders st,
adamc@613 403 maxName = #maxName st}
adamc@613 404 in
adamc@638 405 ("(tmp=_n" ^ Int.toString n' ^ "(t,i),i=tmp._1,tmp._2)", st)
adamc@638 406 end)
adamc@613 407
adamc@613 408 | _ => (EM.errorAt loc "Don't know how to unurlify type in JavaScript";
adamc@613 409 Print.prefaces "Can't unurlify" [("t", MonoPrint.p_typ MonoEnv.empty t)];
adamc@613 410 ("ERROR", st))
adamc@613 411
adamc@646 412 fun padWith (ch, s, len) =
adamc@646 413 if size s < len then
adamc@646 414 padWith (ch, String.str ch ^ s, len - 1)
adamc@646 415 else
adamc@646 416 s
adamc@646 417
adamc@589 418 fun jsExp mode skip outer =
adamc@567 419 let
adamc@589 420 val len = length outer
adamc@567 421
adamc@589 422 fun jsE inner (e as (_, loc), st) =
adamc@589 423 let
adamc@590 424 val str = str loc
adamc@567 425
adamc@589 426 fun var n = Int.toString (len + inner - n - 1)
adamc@567 427
adamc@589 428 fun patCon pc =
adamc@589 429 case pc of
adamc@589 430 PConVar n => str (Int.toString n)
adamc@589 431 | PConFfi {mod = "Basis", con = "True", ...} => str "true"
adamc@589 432 | PConFfi {mod = "Basis", con = "False", ...} => str "false"
adamc@589 433 | PConFfi {con, ...} => str ("\"_" ^ con ^ "\"")
adamc@567 434
adamc@591 435 fun unsupported s =
adamc@591 436 (EM.errorAt loc (s ^ " in code to be compiled to JavaScript[2]");
adamc@591 437 (str "ERROR", st))
adamc@577 438
adamc@589 439 val strcat = strcat loc
adamc@584 440
adamc@589 441 fun jsPrim p =
adamc@589 442 case p of
adamc@589 443 Prim.String s =>
adamc@589 444 str ("\""
adamc@589 445 ^ String.translate (fn #"'" =>
adamc@589 446 if mode = Attribute then
adamc@589 447 "\\047"
adamc@589 448 else
adamc@589 449 "'"
adamc@589 450 | #"\"" => "\\\""
adamc@589 451 | #"<" =>
adamc@589 452 if mode = Script then
adamc@589 453 "<"
adamc@589 454 else
adamc@589 455 "\\074"
adamc@589 456 | #"\\" => "\\\\"
adamc@646 457 | #"\n" => "\\n"
adamc@646 458 | #"\r" => "\\r"
adamc@646 459 | #"\t" => "\\t"
adamc@646 460 | ch =>
adamc@646 461 if Char.isPrint ch then
adamc@646 462 String.str ch
adamc@646 463 else
adamc@646 464 "\\" ^ padWith (#"0",
adamc@646 465 Int.fmt StringCvt.OCT (ord ch),
adamc@646 466 3)) s
adamc@589 467 ^ "\"")
adamc@589 468 | _ => str (Prim.toString p)
adamc@589 469
adamc@589 470 fun jsPat depth inner (p, _) succ fail =
adamc@589 471 case p of
adamc@589 472 PWild => succ
adamc@589 473 | PVar _ => strcat [str ("(_" ^ Int.toString (len + inner) ^ "=d"
adamc@589 474 ^ Int.toString depth ^ ","),
adamc@589 475 succ,
adamc@589 476 str ")"]
adamc@589 477 | PPrim p => strcat [str ("(d" ^ Int.toString depth ^ "=="),
adamc@589 478 jsPrim p,
adamc@589 479 str "?",
adamc@589 480 succ,
adamc@589 481 str ":",
adamc@589 482 fail,
adamc@589 483 str ")"]
adamc@589 484 | PCon (_, PConFfi {mod = "Basis", con = "True", ...}, NONE) =>
adamc@589 485 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 486 succ,
adamc@589 487 str ":",
adamc@589 488 fail,
adamc@589 489 str ")"]
adamc@589 490 | PCon (_, PConFfi {mod = "Basis", con = "False", ...}, NONE) =>
adamc@589 491 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 492 fail,
adamc@589 493 str ":",
adamc@589 494 succ,
adamc@589 495 str ")"]
adamc@596 496 | PCon (Option, _, NONE) =>
adamc@596 497 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@596 498 fail,
adamc@596 499 str ":",
adamc@596 500 succ,
adamc@596 501 str ")"]
adamc@596 502 | PCon (Option, PConVar n, SOME p) =>
adamc@596 503 (case IM.find (someTs, n) of
adamc@596 504 NONE => raise Fail "Jscomp: Not in someTs"
adamc@596 505 | SOME t =>
adamc@596 506 strcat [str ("(d" ^ Int.toString depth ^ "?("
adamc@596 507 ^ (if isNullable t then
adamc@596 508 "d" ^ Int.toString depth ^ "=d"
adamc@596 509 ^ Int.toString depth ^ ".v,"
adamc@596 510 else
adamc@596 511 "")),
adamc@596 512 jsPat depth inner p succ fail,
adamc@596 513 str "):",
adamc@596 514 fail,
adamc@596 515 str ")"])
adamc@589 516 | PCon (_, pc, NONE) =>
adamc@589 517 strcat [str ("(d" ^ Int.toString depth ^ "=="),
adamc@589 518 patCon pc,
adamc@589 519 str "?",
adamc@589 520 succ,
adamc@589 521 str ":",
adamc@589 522 fail,
adamc@589 523 str ")"]
adamc@589 524 | PCon (_, pc, SOME p) =>
adamc@589 525 strcat [str ("(d" ^ Int.toString depth ^ ".n=="),
adamc@589 526 patCon pc,
adamc@589 527 str ("?(d" ^ Int.toString depth ^ "=d" ^ Int.toString depth ^ ".v,"),
adamc@589 528 jsPat depth inner p succ fail,
adamc@589 529 str "):",
adamc@589 530 fail,
adamc@589 531 str ")"]
adamc@589 532 | PRecord xps =>
adamc@589 533 let
adamc@589 534 val (_, succ) = foldl
adamc@589 535 (fn ((x, p, _), (inner, succ)) =>
adamc@589 536 (inner + E.patBindsN p,
adamc@589 537 strcat [str ("(d" ^ Int.toString (depth+1) ^ "=d"
adamc@589 538 ^ Int.toString depth ^ "._" ^ x ^ ","),
adamc@589 539 jsPat (depth+1) inner p succ fail,
adamc@589 540 str ")"]))
adamc@589 541 (inner, succ) xps
adamc@589 542 in
adamc@589 543 succ
adamc@589 544 end
adamc@589 545 | PNone _ => strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 546 fail,
adamc@589 547 str ":",
adamc@589 548 succ,
adamc@589 549 str ")"]
adamc@594 550 | PSome (t, p) => strcat (str ("(d" ^ Int.toString depth ^ "?")
adamc@594 551 :: (if isNullable t then
adamc@594 552 [str ("d" ^ Int.toString depth
adamc@594 553 ^ "=d" ^ Int.toString depth ^ ".v")]
adamc@594 554 else
adamc@594 555 [])
adamc@594 556 @ [jsPat depth inner p succ fail,
adamc@594 557 str ":",
adamc@594 558 fail,
adamc@594 559 str ")"])
adamc@589 560
adamc@601 561 val jsifyString = String.translate (fn #"\"" => "\\\""
adamc@601 562 | #"\\" => "\\\\"
adamc@601 563 | ch => String.str ch)
adamc@601 564
adamc@601 565 fun jsifyStringMulti (n, s) =
adamc@601 566 case n of
adamc@601 567 0 => s
adamc@601 568 | _ => jsifyStringMulti (n - 1, jsifyString s)
adamc@601 569
adamc@601 570 fun deStrcat level (all as (e, _)) =
adamc@589 571 case e of
adamc@601 572 EPrim (Prim.String s) => jsifyStringMulti (level, s)
adamc@601 573 | EStrcat (e1, e2) => deStrcat level e1 ^ deStrcat level e2
adamc@601 574 | EFfiApp ("Basis", "jsifyString", [e]) => "\"" ^ deStrcat (level + 1) e ^ "\""
adamc@601 575 | _ => (Print.prefaces "deStrcat" [("e", MonoPrint.p_exp MonoEnv.empty all)];
adamc@601 576 raise Fail "Jscomp: deStrcat")
adamc@590 577
adamc@590 578 val quoteExp = quoteExp loc
adamc@567 579 in
adamc@590 580 (*Print.prefaces "jsE" [("e", MonoPrint.p_exp MonoEnv.empty e)];*)
adamc@590 581
adamc@589 582 case #1 e of
adamc@589 583 EPrim p => (jsPrim p, st)
adamc@589 584 | ERel n =>
adamc@589 585 if n < inner then
adamc@589 586 (str ("_" ^ var n), st)
adamc@589 587 else
adamc@589 588 let
adamc@589 589 val n = n - inner
adamc@589 590 in
adamc@593 591 quoteExp (List.nth (outer, n)) ((ERel (n - skip), loc), st)
adamc@589 592 end
adamc@567 593
adamc@589 594 | ENamed n =>
adamc@589 595 let
adamc@589 596 val st =
adamc@589 597 if IS.member (#included st, n) then
adamc@589 598 st
adamc@589 599 else
adamc@589 600 case IM.find (nameds, n) of
adamc@589 601 NONE => raise Fail "Jscomp: Unbound ENamed"
adamc@589 602 | SOME e =>
adamc@589 603 let
adamc@589 604 val st = {decls = #decls st,
adamc@589 605 script = #script st,
adamc@595 606 included = IS.add (#included st, n),
adamc@595 607 injectors = #injectors st,
adamc@638 608 decoders = #decoders st,
adamc@595 609 maxName = #maxName st}
adamc@578 610
adamc@589 611 val (e, st) = jsExp mode skip [] 0 (e, st)
adamc@601 612 val e = deStrcat 0 e
adamc@589 613
adamc@589 614 val sc = "_n" ^ Int.toString n ^ "=" ^ e ^ ";\n"
adamc@589 615 in
adamc@589 616 {decls = #decls st,
adamc@589 617 script = sc :: #script st,
adamc@595 618 included = #included st,
adamc@595 619 injectors = #injectors st,
adamc@638 620 decoders= #decoders st,
adamc@595 621 maxName = #maxName st}
adamc@589 622 end
adamc@589 623 in
adamc@589 624 (str ("_n" ^ Int.toString n), st)
adamc@589 625 end
adamc@589 626
adamc@596 627 | ECon (Option, _, NONE) => (str "null", st)
adamc@596 628 | ECon (Option, PConVar n, SOME e) =>
adamc@596 629 let
adamc@596 630 val (e, st) = jsE inner (e, st)
adamc@596 631 in
adamc@596 632 case IM.find (someTs, n) of
adamc@596 633 NONE => raise Fail "Jscomp: Not in someTs [2]"
adamc@596 634 | SOME t =>
adamc@596 635 (if isNullable t then
adamc@596 636 strcat [str "{v:",
adamc@596 637 e,
adamc@596 638 str "}"]
adamc@596 639 else
adamc@596 640 e, st)
adamc@596 641 end
adamc@596 642
adamc@589 643 | ECon (_, pc, NONE) => (patCon pc, st)
adamc@589 644 | ECon (_, pc, SOME e) =>
adamc@589 645 let
adamc@589 646 val (s, st) = jsE inner (e, st)
adamc@589 647 in
adamc@589 648 (strcat [str "{n:",
adamc@589 649 patCon pc,
adamc@589 650 str ",v:",
adamc@589 651 s,
adamc@589 652 str "}"], st)
adamc@589 653 end
adamc@596 654
adamc@589 655 | ENone _ => (str "null", st)
adamc@589 656 | ESome (t, e) =>
adamc@572 657 let
adamc@572 658 val (e, st) = jsE inner (e, st)
adamc@572 659 in
adamc@589 660 (if isNullable t then
adamc@589 661 strcat [str "{v:", e, str "}"]
adamc@589 662 else
adamc@589 663 e, st)
adamc@589 664 end
adamc@589 665
adamc@589 666 | EFfi k =>
adamc@589 667 let
adamc@589 668 val name = case ffi k of
adamc@589 669 NONE => (EM.errorAt loc ("Unsupported FFI identifier " ^ #2 k
adamc@589 670 ^ " in JavaScript");
adamc@589 671 "ERROR")
adamc@589 672 | SOME s => s
adamc@589 673 in
adamc@589 674 (str name, st)
adamc@589 675 end
adamc@589 676 | EFfiApp (m, x, args) =>
adamc@589 677 let
adamc@589 678 val args =
adamc@589 679 case (m, x, args) of
adamc@589 680 ("Basis", "new_client_source", [(EJavaScript (_, e, _), _)]) => [e]
adamc@589 681 | ("Basis", "set_client_source", [e1, (EJavaScript (_, e2, _), _)]) => [e1, e2]
adamc@589 682 | _ => args
adamc@589 683
adamc@589 684 val name = case ffi (m, x) of
adamc@589 685 NONE => (EM.errorAt loc ("Unsupported FFI function "
adamc@589 686 ^ x ^ " in JavaScript");
adamc@589 687 "ERROR")
adamc@589 688 | SOME s => s
adamc@589 689 in
adamc@589 690 case args of
adamc@589 691 [] => (str (name ^ "()"), st)
adamc@589 692 | [e] =>
adamc@589 693 let
adamc@589 694 val (e, st) = jsE inner (e, st)
adamc@589 695 in
adamc@589 696 (strcat [str (name ^ "("),
adamc@589 697 e,
adamc@589 698 str ")"], st)
adamc@589 699 end
adamc@589 700 | e :: es =>
adamc@589 701 let
adamc@589 702 val (e, st) = jsE inner (e, st)
adamc@589 703 val (es, st) = ListUtil.foldlMapConcat
adamc@589 704 (fn (e, st) =>
adamc@589 705 let
adamc@589 706 val (e, st) = jsE inner (e, st)
adamc@589 707 in
adamc@589 708 ([str ",", e], st)
adamc@589 709 end)
adamc@589 710 st es
adamc@589 711 in
adamc@589 712 (strcat (str (name ^ "(")
adamc@589 713 :: e
adamc@589 714 :: es
adamc@589 715 @ [str ")"]), st)
adamc@589 716 end
adamc@589 717 end
adamc@589 718
adamc@589 719 | EApp (e1, e2) =>
adamc@589 720 let
adamc@589 721 val (e1, st) = jsE inner (e1, st)
adamc@589 722 val (e2, st) = jsE inner (e2, st)
adamc@589 723 in
adamc@589 724 (strcat [e1, str "(", e2, str ")"], st)
adamc@589 725 end
adamc@589 726 | EAbs (_, _, _, e) =>
adamc@589 727 let
adamc@589 728 val locals = List.tabulate
adamc@589 729 (varDepth e,
adamc@589 730 fn i => str ("var _" ^ Int.toString (len + inner + i + 1) ^ ";"))
adamc@589 731 val (e, st) = jsE (inner + 1) (e, st)
adamc@589 732 in
adamc@589 733 (strcat (str ("function(_"
adamc@589 734 ^ Int.toString (len + inner)
adamc@589 735 ^ "){")
adamc@589 736 :: locals
adamc@589 737 @ [str "return ",
adamc@589 738 e,
adamc@589 739 str "}"]),
adamc@589 740 st)
adamc@589 741 end
adamc@589 742
adamc@589 743 | EUnop (s, e) =>
adamc@589 744 let
adamc@589 745 val (e, st) = jsE inner (e, st)
adamc@589 746 in
adamc@589 747 (strcat [str ("(" ^ s),
adamc@572 748 e,
adamc@589 749 str ")"],
adamc@589 750 st)
adamc@589 751 end
adamc@589 752 | EBinop (s, e1, e2) =>
adamc@589 753 let
adamc@589 754 val (e1, st) = jsE inner (e1, st)
adamc@589 755 val (e2, st) = jsE inner (e2, st)
adamc@589 756 in
adamc@589 757 (strcat [str "(",
adamc@589 758 e1,
adamc@589 759 str s,
adamc@589 760 e2,
adamc@589 761 str ")"],
adamc@589 762 st)
adamc@589 763 end
adamc@589 764
adamc@589 765 | ERecord [] => (str "null", st)
adamc@589 766 | ERecord [(x, e, _)] =>
adamc@589 767 let
adamc@589 768 val (e, st) = jsE inner (e, st)
adamc@589 769 in
adamc@589 770 (strcat [str "{_x:", e, str "}"], st)
adamc@589 771 end
adamc@589 772 | ERecord ((x, e, _) :: xes) =>
adamc@589 773 let
adamc@589 774 val (e, st) = jsE inner (e, st)
adamc@589 775
adamc@589 776 val (es, st) =
adamc@589 777 foldr (fn ((x, e, _), (es, st)) =>
adamc@589 778 let
adamc@589 779 val (e, st) = jsE inner (e, st)
adamc@589 780 in
adamc@589 781 (str (",_" ^ x ^ ":")
adamc@589 782 :: e
adamc@589 783 :: es,
adamc@589 784 st)
adamc@589 785 end)
adamc@589 786 ([str "}"], st) xes
adamc@589 787 in
adamc@589 788 (strcat (str ("{_" ^ x ^ ":")
adamc@589 789 :: e
adamc@589 790 :: es),
adamc@589 791 st)
adamc@589 792 end
adamc@589 793 | EField (e, x) =>
adamc@589 794 let
adamc@589 795 val (e, st) = jsE inner (e, st)
adamc@589 796 in
adamc@589 797 (strcat [e,
adamc@589 798 str ("._" ^ x)], st)
adamc@589 799 end
adamc@589 800
adamc@591 801 | ECase (e', pes, {result, ...}) =>
adamc@591 802 if closedUpto inner e andalso List.all (fn (_, e) => closedUpto inner e) pes then
adamc@593 803 let
adamc@593 804 val (e', st) = quoteExp result ((ERel 0, loc), st)
adamc@593 805 in
adamc@593 806 ((ELet ("js", result, e, e'), loc),
adamc@593 807 st)
adamc@593 808 end
adamc@591 809 else
adamc@591 810 let
adamc@591 811 val plen = length pes
adamc@589 812
adamc@591 813 val (cases, st) = ListUtil.foldliMap
adamc@591 814 (fn (i, (p, e), st) =>
adamc@591 815 let
adamc@591 816 val (e, st) = jsE (inner + E.patBindsN p) (e, st)
adamc@591 817 val fail =
adamc@591 818 if i = plen - 1 then
adamc@591 819 str "pf()"
adamc@591 820 else
adamc@591 821 str ("c" ^ Int.toString (i+1) ^ "()")
adamc@591 822 val c = jsPat 0 inner p e fail
adamc@591 823 in
adamc@591 824 (strcat [str ("c" ^ Int.toString i ^ "=function(){return "),
adamc@591 825 c,
adamc@591 826 str "},"],
adamc@591 827 st)
adamc@591 828 end)
adamc@591 829 st pes
adamc@589 830
adamc@591 831 val (e, st) = jsE inner (e', st)
adamc@591 832 in
adamc@591 833 (strcat (str "("
adamc@591 834 :: List.revAppend (cases,
adamc@591 835 [str "d0=",
adamc@591 836 e,
adamc@591 837 str ",c0())"])), st)
adamc@591 838 end
adamc@589 839
adamc@589 840 | EStrcat (e1, e2) =>
adamc@589 841 let
adamc@589 842 val (e1, st) = jsE inner (e1, st)
adamc@589 843 val (e2, st) = jsE inner (e2, st)
adamc@589 844 in
adamc@589 845 (strcat [str "(", e1, str "+", e2, str ")"], st)
adamc@589 846 end
adamc@589 847
adamc@589 848 | EError (e, _) =>
adamc@589 849 let
adamc@589 850 val (e, st) = jsE inner (e, st)
adamc@589 851 in
adamc@589 852 (strcat [str "alert(\"ERROR: \"+", e, str ")"],
adamc@589 853 st)
adamc@589 854 end
adamc@589 855
adamc@589 856 | EWrite e =>
adamc@589 857 let
adamc@589 858 val (e, st) = jsE inner (e, st)
adamc@589 859 in
adamc@589 860 (strcat [str "document.write(",
adamc@589 861 e,
adamc@589 862 str ".v)"], st)
adamc@589 863 end
adamc@589 864
adamc@589 865 | ESeq (e1, e2) =>
adamc@589 866 let
adamc@589 867 val (e1, st) = jsE inner (e1, st)
adamc@589 868 val (e2, st) = jsE inner (e2, st)
adamc@589 869 in
adamc@589 870 (strcat [str "(", e1, str ",", e2, str ")"], st)
adamc@589 871 end
adamc@589 872 | ELet (_, _, e1, e2) =>
adamc@589 873 let
adamc@589 874 val (e1, st) = jsE inner (e1, st)
adamc@589 875 val (e2, st) = jsE (inner + 1) (e2, st)
adamc@589 876 in
adamc@589 877 (strcat [str ("(_" ^ Int.toString (len + inner) ^ "="),
adamc@589 878 e1,
adamc@589 879 str ",",
adamc@589 880 e2,
adamc@572 881 str ")"], st)
adamc@572 882 end
adamc@589 883
adamc@601 884 | EJavaScript (Source _, _, SOME _) => (e, st)
adamc@603 885 | EJavaScript (_, _, SOME e) =>
adamc@603 886 (strcat [str "\"cr(\"+ca(function(){return ",
adamc@603 887 e,
adamc@603 888 str "})+\")\""],
adamc@603 889 st)
adamc@590 890
adamc@589 891 | EClosure _ => unsupported "EClosure"
adamc@589 892 | EQuery _ => unsupported "Query"
adamc@589 893 | EDml _ => unsupported "DML"
adamc@589 894 | ENextval _ => unsupported "Nextval"
adamc@589 895 | EUnurlify _ => unsupported "EUnurlify"
adamc@646 896 | EJavaScript (_, e as (EAbs _, _), _) =>
adamc@646 897 let
adamc@646 898 val (e, st) = jsE inner (e, st)
adamc@646 899 in
adamc@646 900 (strcat [str "\"cr(\"+ca(",
adamc@646 901 e,
adamc@646 902 str ")+\")\""],
adamc@646 903 st)
adamc@646 904 end
adamc@601 905 | EJavaScript (_, e, _) =>
adamc@601 906 let
adamc@601 907 val (e, st) = jsE inner (e, st)
adamc@601 908 in
adamc@603 909 (strcat [str "\"cr(\"+ca(function(){return ",
adamc@603 910 e,
adamc@603 911 str "})+\")\""],
adamc@603 912 st)
adamc@601 913 end
adamc@590 914
adamc@589 915 | ESignalReturn e =>
adamc@572 916 let
adamc@572 917 val (e, st) = jsE inner (e, st)
adamc@572 918 in
adamc@589 919 (strcat [str "sr(",
adamc@589 920 e,
adamc@589 921 str ")"],
adamc@589 922 st)
adamc@589 923 end
adamc@589 924 | ESignalBind (e1, e2) =>
adamc@589 925 let
adamc@589 926 val (e1, st) = jsE inner (e1, st)
adamc@589 927 val (e2, st) = jsE inner (e2, st)
adamc@589 928 in
adamc@589 929 (strcat [str "sb(",
adamc@589 930 e1,
adamc@589 931 str ",",
adamc@589 932 e2,
adamc@589 933 str ")"],
adamc@589 934 st)
adamc@589 935 end
adamc@589 936 | ESignalSource e =>
adamc@589 937 let
adamc@589 938 val (e, st) = jsE inner (e, st)
adamc@589 939 in
adamc@589 940 (strcat [str "ss(",
adamc@589 941 e,
adamc@589 942 str ")"],
adamc@589 943 st)
adamc@572 944 end
adamc@608 945
adamc@614 946 | EServerCall (e, ek, t) =>
adamc@609 947 let
adamc@614 948 val (e, st) = jsE inner (e, st)
adamc@609 949 val (ek, st) = jsE inner (ek, st)
adamc@613 950 val (unurl, st) = unurlifyExp loc (t, st)
adamc@609 951 in
adamc@614 952 (strcat [str ("rc(\"" ^ !Monoize.urlPrefix ^ "\"+"),
adamc@614 953 e,
adamc@614 954 str (", function(s){var t=s.split(\"/\");var i=0;return "
adamc@613 955 ^ unurl ^ "},"),
adamc@609 956 ek,
adamc@609 957 str ")"],
adamc@609 958 st)
adamc@609 959 end
adamc@567 960 end
adamc@589 961 in
adamc@589 962 jsE
adamc@589 963 end
adamc@567 964
adamc@589 965 val decl : state -> decl -> decl * state =
adamc@589 966 U.Decl.foldMapB {typ = fn x => x,
adamc@589 967 exp = fn (env, e, st) =>
adamc@589 968 let
adamc@589 969 fun doCode m skip env orig e =
adamc@589 970 let
adamc@589 971 val len = length env
adamc@589 972 fun str s = (EPrim (Prim.String s), #2 e)
adamc@567 973
adamc@589 974 val locals = List.tabulate
adamc@589 975 (varDepth e,
adamc@589 976 fn i => str ("var _" ^ Int.toString (len + i) ^ ";"))
adamc@589 977 val (e, st) = jsExp m skip env 0 (e, st)
adamc@589 978 in
adamc@589 979 (EJavaScript (m, orig, SOME (strcat (#2 e) (locals @ [e]))), st)
adamc@589 980 end
adamc@589 981 in
adamc@589 982 case e of
adamc@591 983 EJavaScript (m, orig as (EAbs (_, t, _, e), _), NONE) =>
adamc@591 984 doCode m 1 (t :: env) orig e
adamc@591 985 | EJavaScript (m, orig, NONE) =>
adamc@591 986 doCode m 0 env orig orig
adamc@589 987 | _ => (e, st)
adamc@589 988 end,
adamc@589 989 decl = fn (_, e, st) => (e, st),
adamc@589 990 bind = fn (env, U.Decl.RelE (_, t)) => t :: env
adamc@589 991 | (env, _) => env}
adamc@589 992 []
adamc@567 993
adamc@567 994 fun doDecl (d, st) =
adamc@567 995 let
adamc@567 996 val (d, st) = decl st d
adamc@567 997 in
adamc@567 998 (List.revAppend (#decls st, [d]),
adamc@567 999 {decls = [],
adamc@589 1000 script = #script st,
adamc@595 1001 included = #included st,
adamc@595 1002 injectors = #injectors st,
adamc@638 1003 decoders = #decoders st,
adamc@595 1004 maxName = #maxName st})
adamc@567 1005 end
adamc@567 1006
adamc@567 1007 val (ds, st) = ListUtil.foldlMapConcat doDecl
adamc@567 1008 {decls = [],
adamc@589 1009 script = [],
adamc@595 1010 included = IS.empty,
adamc@595 1011 injectors = IM.empty,
adamc@638 1012 decoders = IM.empty,
adamc@595 1013 maxName = U.File.maxName file + 1}
adamc@567 1014 file
adamc@569 1015
adamc@569 1016 val inf = TextIO.openIn (OS.Path.joinDirFile {dir = Config.libJs, file = "urweb.js"})
adamc@569 1017 fun lines acc =
adamc@569 1018 case TextIO.inputLine inf of
adamc@569 1019 NONE => String.concat (rev acc)
adamc@569 1020 | SOME line => lines (line :: acc)
adamc@569 1021 val lines = lines []
adamc@567 1022 in
adamc@569 1023 TextIO.closeIn inf;
adamc@589 1024 (DJavaScript (lines ^ String.concat (rev (#script st))), ErrorMsg.dummySpan) :: ds
adamc@567 1025 end
adamc@567 1026
adamc@567 1027 end