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annotate src/jscomp.sml @ 690:01b6f2ee2ef0

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Redo signal implementation to avoid memory leaks
author Adam Chlipala <adamc@hcoop.net>
date Thu, 02 Apr 2009 15:12:06 -0400
parents 5bbb542243e8
children cc58941da3e2
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@649 47 (("Basis", "stringToFloat_error"), "pfl"),
adamc@649 48 (("Basis", "stringToInt_error"), "pi"),
adamc@614 49 (("Basis", "urlifyInt"), "ts"),
adamc@614 50 (("Basis", "urlifyFloat"), "ts"),
adamc@679 51 (("Basis", "urlifyString"), "uf"),
adamc@670 52 (("Basis", "recv"), "rv")]
adamc@572 53
adamc@572 54 structure FM = BinaryMapFn(struct
adamc@572 55 type ord_key = string * string
adamc@572 56 fun compare ((m1, x1), (m2, x2)) =
adamc@572 57 Order.join (String.compare (m1, m2),
adamc@572 58 fn () => String.compare (x1, x2))
adamc@572 59 end)
adamc@572 60
adamc@572 61 val funcs = foldl (fn ((k, v), m) => FM.insert (m, k, v)) FM.empty funcs
adamc@572 62
adamc@572 63 fun ffi k = FM.find (funcs, k)
adamc@572 64
adamc@567 65 type state = {
adamc@567 66 decls : decl list,
adamc@589 67 script : string list,
adamc@595 68 included : IS.set,
adamc@595 69 injectors : int IM.map,
adamc@638 70 decoders : int IM.map,
adamc@595 71 maxName : int
adamc@567 72 }
adamc@567 73
adamc@567 74 fun varDepth (e, _) =
adamc@567 75 case e of
adamc@567 76 EPrim _ => 0
adamc@567 77 | ERel _ => 0
adamc@567 78 | ENamed _ => 0
adamc@567 79 | ECon (_, _, NONE) => 0
adamc@567 80 | ECon (_, _, SOME e) => varDepth e
adamc@567 81 | ENone _ => 0
adamc@567 82 | ESome (_, e) => varDepth e
adamc@567 83 | EFfi _ => 0
adamc@567 84 | EFfiApp (_, _, es) => foldl Int.max 0 (map varDepth es)
adamc@567 85 | EApp (e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@567 86 | EAbs _ => 0
adamc@567 87 | EUnop (_, e) => varDepth e
adamc@567 88 | EBinop (_, e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@567 89 | ERecord xes => foldl Int.max 0 (map (fn (_, e, _) => varDepth e) xes)
adamc@567 90 | EField (e, _) => varDepth e
adamc@567 91 | ECase (e, pes, _) =>
adamc@567 92 foldl Int.max (varDepth e)
adamc@567 93 (map (fn (p, e) => E.patBindsN p + varDepth e) pes)
adamc@567 94 | EStrcat (e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@567 95 | EError (e, _) => varDepth e
adamc@567 96 | EWrite e => varDepth e
adamc@567 97 | ESeq (e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@567 98 | ELet (_, _, e1, e2) => Int.max (varDepth e1, 1 + varDepth e2)
adamc@567 99 | EClosure _ => 0
adamc@567 100 | EQuery _ => 0
adamc@567 101 | EDml _ => 0
adamc@567 102 | ENextval _ => 0
adamc@567 103 | EUnurlify _ => 0
adamc@567 104 | EJavaScript _ => 0
adamc@568 105 | ESignalReturn e => varDepth e
adamc@572 106 | ESignalBind (e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@574 107 | ESignalSource e => varDepth e
adamc@614 108 | EServerCall (e, ek, _) => Int.max (varDepth e, varDepth ek)
adamc@670 109 | ERecv (e, ek, _) => Int.max (varDepth e, varDepth ek)
adamc@567 110
adamc@591 111 fun closedUpto d =
adamc@591 112 let
adamc@591 113 fun cu inner (e, _) =
adamc@591 114 case e of
adamc@591 115 EPrim _ => true
adamc@591 116 | ERel n => n < inner orelse n - inner >= d
adamc@591 117 | ENamed _ => true
adamc@591 118 | ECon (_, _, NONE) => true
adamc@591 119 | ECon (_, _, SOME e) => cu inner e
adamc@591 120 | ENone _ => true
adamc@591 121 | ESome (_, e) => cu inner e
adamc@591 122 | EFfi _ => true
adamc@591 123 | EFfiApp (_, _, es) => List.all (cu inner) es
adamc@591 124 | EApp (e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 125 | EAbs (_, _, _, e) => cu (inner + 1) e
adamc@591 126 | EUnop (_, e) => cu inner e
adamc@591 127 | EBinop (_, e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 128 | ERecord xes => List.all (fn (_, e, _) => cu inner e) xes
adamc@591 129 | EField (e, _) => cu inner e
adamc@591 130 | ECase (e, pes, _) =>
adamc@591 131 cu inner e
adamc@591 132 andalso List.all (fn (p, e) => cu (inner + E.patBindsN p) e) pes
adamc@591 133 | EStrcat (e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 134 | EError (e, _) => cu inner e
adamc@591 135 | EWrite e => cu inner e
adamc@591 136 | ESeq (e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 137 | ELet (_, _, e1, e2) => cu inner e1 andalso cu (inner + 1) e2
adamc@591 138 | EClosure (_, es) => List.all (cu inner) es
adamc@591 139 | EQuery {query, body, initial, ...} =>
adamc@591 140 cu inner query
adamc@591 141 andalso cu (inner + 2) body
adamc@591 142 andalso cu inner initial
adamc@591 143 | EDml e => cu inner e
adamc@591 144 | ENextval e => cu inner e
adamc@591 145 | EUnurlify (e, _) => cu inner e
adamc@591 146 | EJavaScript (_, e, _) => cu inner e
adamc@591 147 | ESignalReturn e => cu inner e
adamc@591 148 | ESignalBind (e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 149 | ESignalSource e => cu inner e
adamc@614 150 | EServerCall (e, ek, _) => cu inner e andalso cu inner ek
adamc@670 151 | ERecv (e, ek, _) => cu inner e andalso cu inner ek
adamc@591 152 in
adamc@591 153 cu 0
adamc@591 154 end
adamc@591 155
adamc@568 156 fun strcat loc es =
adamc@568 157 case es of
adamc@568 158 [] => (EPrim (Prim.String ""), loc)
adamc@568 159 | [x] => x
adamc@568 160 | x :: es' => (EStrcat (x, strcat loc es'), loc)
adamc@568 161
adamc@589 162 fun process file =
adamc@567 163 let
adamc@596 164 val (someTs, nameds) =
adamc@596 165 foldl (fn ((DVal (_, n, t, e, _), _), (someTs, nameds)) => (someTs, IM.insert (nameds, n, e))
adamc@596 166 | ((DValRec vis, _), (someTs, nameds)) =>
adamc@596 167 (someTs, foldl (fn ((_, n, _, e, _), nameds) => IM.insert (nameds, n, e))
adamc@596 168 nameds vis)
adamc@596 169 | ((DDatatype (_, _, cs), _), state as (someTs, nameds)) =>
adamc@596 170 if ElabUtil.classifyDatatype cs = Option then
adamc@596 171 (foldl (fn ((_, n, SOME t), someTs) => IM.insert (someTs, n, t)
adamc@596 172 | (_, someTs) => someTs) someTs cs,
adamc@596 173 nameds)
adamc@596 174 else
adamc@596 175 state
adamc@595 176 | (_, state) => state)
adamc@596 177 (IM.empty, IM.empty) file
adamc@567 178
adamc@590 179 fun str loc s = (EPrim (Prim.String s), loc)
adamc@590 180
adamc@594 181 fun isNullable (t, _) =
adamc@594 182 case t of
adamc@594 183 TOption _ => true
adamc@594 184 | TRecord [] => true
adamc@594 185 | _ => false
adamc@594 186
adamc@593 187 fun quoteExp loc (t : typ) (e, st) =
adamc@590 188 case #1 t of
adamc@593 189 TSource => (strcat loc [str loc "s",
adamc@593 190 (EFfiApp ("Basis", "htmlifyInt", [e]), loc)], st)
adamc@590 191
adamc@593 192 | TRecord [] => (str loc "null", st)
adamc@593 193 | TRecord [(x, t)] =>
adamc@593 194 let
adamc@593 195 val (e, st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 196 in
adamc@593 197 (strcat loc [str loc ("{_" ^ x ^ ":"),
adamc@593 198 e,
adamc@593 199 str loc "}"], st)
adamc@593 200 end
adamc@593 201 | TRecord ((x, t) :: xts) =>
adamc@593 202 let
adamc@593 203 val (e', st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 204 val (es, st) = ListUtil.foldlMap
adamc@593 205 (fn ((x, t), st) =>
adamc@593 206 let
adamc@593 207 val (e, st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 208 in
adamc@593 209 (strcat loc [str loc (",_" ^ x ^ ":"), e], st)
adamc@593 210 end)
adamc@593 211 st xts
adamc@593 212 in
adamc@593 213 (strcat loc (str loc ("{_" ^ x ^ ":")
adamc@593 214 :: e'
adamc@593 215 :: es
adamc@593 216 @ [str loc "}"]), st)
adamc@593 217 end
adamc@590 218
adamc@593 219 | TFfi ("Basis", "string") => ((EFfiApp ("Basis", "jsifyString", [e]), loc), st)
adamc@593 220 | TFfi ("Basis", "int") => ((EFfiApp ("Basis", "htmlifyInt", [e]), loc), st)
adamc@593 221 | TFfi ("Basis", "float") => ((EFfiApp ("Basis", "htmlifyFloat", [e]), loc), st)
adamc@682 222 | TFfi ("Basis", "channel") => ((EFfiApp ("Basis", "jsifyChannel", [e]), loc), st)
adamc@593 223
adamc@593 224 | TFfi ("Basis", "bool") => ((ECase (e,
adamc@593 225 [((PCon (Enum, PConFfi {mod = "Basis",
adamc@593 226 datatyp = "bool",
adamc@593 227 con = "True",
adamc@593 228 arg = NONE}, NONE), loc),
adamc@593 229 str loc "true"),
adamc@593 230 ((PCon (Enum, PConFfi {mod = "Basis",
adamc@593 231 datatyp = "bool",
adamc@593 232 con = "False",
adamc@593 233 arg = NONE}, NONE), loc),
adamc@593 234 str loc "false")],
adamc@593 235 {disc = (TFfi ("Basis", "bool"), loc),
adamc@593 236 result = (TFfi ("Basis", "string"), loc)}), loc),
adamc@593 237 st)
adamc@592 238
adamc@594 239 | TOption t =>
adamc@594 240 let
adamc@594 241 val (e', st) = quoteExp loc t ((ERel 0, loc), st)
adamc@594 242 in
adamc@594 243 ((ECase (e,
adamc@594 244 [((PNone t, loc),
adamc@594 245 str loc "null"),
adamc@594 246 ((PSome (t, (PVar ("x", t), loc)), loc),
adamc@594 247 if isNullable t then
adamc@594 248 strcat loc [str loc "{v:", e', str loc "}"]
adamc@594 249 else
adamc@594 250 e')],
adamc@594 251 {disc = (TOption t, loc),
adamc@594 252 result = (TFfi ("Basis", "string"), loc)}), loc),
adamc@594 253 st)
adamc@594 254 end
adamc@594 255
adamc@595 256 | TDatatype (n, ref (dk, cs)) =>
adamc@595 257 (case IM.find (#injectors st, n) of
adamc@595 258 SOME n' => ((EApp ((ENamed n', loc), e), loc), st)
adamc@595 259 | NONE =>
adamc@595 260 let
adamc@595 261 val n' = #maxName st
adamc@595 262 val st = {decls = #decls st,
adamc@595 263 script = #script st,
adamc@595 264 included = #included st,
adamc@595 265 injectors = IM.insert (#injectors st, n, n'),
adamc@638 266 decoders = #decoders st,
adamc@595 267 maxName = n' + 1}
adamc@595 268
adamc@595 269 val (pes, st) = ListUtil.foldlMap
adamc@595 270 (fn ((_, cn, NONE), st) =>
adamc@595 271 (((PCon (dk, PConVar cn, NONE), loc),
adamc@596 272 case dk of
adamc@596 273 Option => str loc "null"
adamc@596 274 | _ => str loc (Int.toString cn)),
adamc@595 275 st)
adamc@595 276 | ((_, cn, SOME t), st) =>
adamc@595 277 let
adamc@595 278 val (e, st) = quoteExp loc t ((ERel 0, loc), st)
adamc@595 279 in
adamc@595 280 (((PCon (dk, PConVar cn, SOME (PVar ("x", t), loc)), loc),
adamc@596 281 case dk of
adamc@596 282 Option =>
adamc@596 283 if isNullable t then
adamc@638 284 strcat loc [str loc "{v:",
adamc@596 285 e,
adamc@596 286 str loc "}"]
adamc@596 287 else
adamc@596 288 e
adamc@597 289 | _ => strcat loc [str loc ("{n:" ^ Int.toString cn
adamc@597 290 ^ ",v:"),
adamc@597 291 e,
adamc@597 292 str loc "}"]),
adamc@595 293 st)
adamc@595 294 end)
adamc@595 295 st cs
adamc@595 296
adamc@595 297 val s = (TFfi ("Basis", "string"), loc)
adamc@595 298 val body = (ECase ((ERel 0, loc), pes,
adamc@595 299 {disc = t, result = s}), loc)
adamc@595 300 val body = (EAbs ("x", t, s, body), loc)
adamc@595 301
adamc@595 302 val st = {decls = (DValRec [("jsify", n', (TFun (t, s), loc),
adamc@595 303 body, "jsify")], loc) :: #decls st,
adamc@595 304 script = #script st,
adamc@595 305 included = #included st,
adamc@595 306 injectors = #injectors st,
adamc@638 307 decoders= #decoders st,
adamc@595 308 maxName = #maxName st}
adamc@595 309 in
adamc@595 310 ((EApp ((ENamed n', loc), e), loc), st)
adamc@595 311 end)
adamc@595 312
adamc@590 313 | _ => (EM.errorAt loc "Don't know how to embed type in JavaScript";
adamc@590 314 Print.prefaces "Can't embed" [("t", MonoPrint.p_typ MonoEnv.empty t)];
adamc@593 315 (str loc "ERROR", st))
adamc@590 316
adamc@613 317 fun unurlifyExp loc (t : typ, st) =
adamc@613 318 case #1 t of
adamc@613 319 TRecord [] => ("null", st)
adamc@613 320 | TRecord [(x, t)] =>
adamc@613 321 let
adamc@613 322 val (e, st) = unurlifyExp loc (t, st)
adamc@613 323 in
adamc@613 324 ("{_" ^ x ^ ":" ^ e ^ "}",
adamc@613 325 st)
adamc@613 326 end
adamc@613 327 | TRecord ((x, t) :: xts) =>
adamc@613 328 let
adamc@613 329 val (e', st) = unurlifyExp loc (t, st)
adamc@613 330 val (es, st) = ListUtil.foldlMap
adamc@638 331 (fn ((x, t), st) =>
adamc@638 332 let
adamc@638 333 val (e, st) = unurlifyExp loc (t, st)
adamc@638 334 in
adamc@638 335 (",_" ^ x ^ ":" ^ e, st)
adamc@638 336 end)
adamc@638 337 st xts
adamc@613 338 in
adamc@613 339 (String.concat ("{_"
adamc@613 340 :: x
adamc@613 341 :: ":"
adamc@613 342 :: e'
adamc@613 343 :: es
adamc@613 344 @ ["}"]), st)
adamc@613 345 end
adamc@613 346
adamc@679 347 | TFfi ("Basis", "string") => ("uu(t[i++])", st)
adamc@613 348 | TFfi ("Basis", "int") => ("parseInt(t[i++])", st)
adamc@613 349 | TFfi ("Basis", "float") => ("parseFloat(t[i++])", st)
adamc@682 350 | TFfi ("Basis", "channel") => ("(t[i++].length > 0 ? parseInt(t[i]) : null)", st)
adamc@613 351
adamc@613 352 | TFfi ("Basis", "bool") => ("t[i++] == \"True\"", st)
adamc@613 353
adamc@638 354 | TOption t =>
adamc@613 355 let
adamc@638 356 val (e, st) = unurlifyExp loc (t, st)
adamc@638 357 val e = if isNullable t then
adamc@638 358 "{v:" ^ e ^ "}"
adamc@638 359 else
adamc@638 360 e
adamc@613 361 in
adamc@638 362 ("(uu=t[i++],uu==\"Some\"?" ^ e ^ ":null)", st)
adamc@638 363 end
adamc@613 364
adamc@638 365 | TDatatype (n, ref (dk, cs)) =>
adamc@638 366 (case IM.find (#decoders st, n) of
adamc@638 367 SOME n' => ("(tmp=_n" ^ Int.toString n' ^ "(t,i),i=tmp._1,tmp._2)", st)
adamc@613 368 | NONE =>
adamc@613 369 let
adamc@613 370 val n' = #maxName st
adamc@613 371 val st = {decls = #decls st,
adamc@613 372 script = #script st,
adamc@613 373 included = #included st,
adamc@638 374 injectors = #injectors st,
adamc@638 375 decoders = IM.insert (#decoders st, n, n'),
adamc@613 376 maxName = n' + 1}
adamc@613 377
adamc@638 378 val (e, st) = foldl (fn ((x, cn, NONE), (e, st)) =>
adamc@638 379 ("x==\"" ^ x ^ "\"?"
adamc@638 380 ^ (case dk of
adamc@638 381 Option => "null"
adamc@638 382 | _ => Int.toString cn)
adamc@638 383 ^ ":" ^ e,
adamc@613 384 st)
adamc@638 385 | ((x, cn, SOME t), (e, st)) =>
adamc@613 386 let
adamc@638 387 val (e', st) = unurlifyExp loc (t, st)
adamc@613 388 in
adamc@638 389 ("x==\"" ^ x ^ "\"?"
adamc@638 390 ^ (case dk of
adamc@638 391 Option =>
adamc@638 392 if isNullable t then
adamc@638 393 "{v:" ^ e' ^ "}"
adamc@638 394 else
adamc@638 395 e'
adamc@638 396 | _ => "{n:" ^ Int.toString cn ^ ",v:" ^ e' ^ "}")
adamc@638 397 ^ ":" ^ e,
adamc@613 398 st)
adamc@613 399 end)
adamc@638 400 ("pf()", st) cs
adamc@613 401
adamc@638 402 val body = "function _n" ^ Int.toString n' ^ "(t,i){var x=t[i++];var r="
adamc@638 403 ^ e ^ ";return {_1:i,_2:r}}\n\n"
adamc@613 404
adamc@638 405 val st = {decls = #decls st,
adamc@638 406 script = body :: #script st,
adamc@613 407 included = #included st,
adamc@613 408 injectors = #injectors st,
adamc@638 409 decoders = #decoders st,
adamc@613 410 maxName = #maxName st}
adamc@613 411 in
adamc@638 412 ("(tmp=_n" ^ Int.toString n' ^ "(t,i),i=tmp._1,tmp._2)", st)
adamc@638 413 end)
adamc@613 414
adamc@613 415 | _ => (EM.errorAt loc "Don't know how to unurlify type in JavaScript";
adamc@613 416 Print.prefaces "Can't unurlify" [("t", MonoPrint.p_typ MonoEnv.empty t)];
adamc@613 417 ("ERROR", st))
adamc@613 418
adamc@646 419 fun padWith (ch, s, len) =
adamc@646 420 if size s < len then
adamc@646 421 padWith (ch, String.str ch ^ s, len - 1)
adamc@646 422 else
adamc@646 423 s
adamc@646 424
adamc@589 425 fun jsExp mode skip outer =
adamc@567 426 let
adamc@589 427 val len = length outer
adamc@567 428
adamc@589 429 fun jsE inner (e as (_, loc), st) =
adamc@589 430 let
adamc@590 431 val str = str loc
adamc@567 432
adamc@589 433 fun var n = Int.toString (len + inner - n - 1)
adamc@567 434
adamc@589 435 fun patCon pc =
adamc@589 436 case pc of
adamc@589 437 PConVar n => str (Int.toString n)
adamc@589 438 | PConFfi {mod = "Basis", con = "True", ...} => str "true"
adamc@589 439 | PConFfi {mod = "Basis", con = "False", ...} => str "false"
adamc@589 440 | PConFfi {con, ...} => str ("\"_" ^ con ^ "\"")
adamc@567 441
adamc@591 442 fun unsupported s =
adamc@591 443 (EM.errorAt loc (s ^ " in code to be compiled to JavaScript[2]");
adamc@591 444 (str "ERROR", st))
adamc@577 445
adamc@589 446 val strcat = strcat loc
adamc@584 447
adamc@589 448 fun jsPrim p =
adamc@589 449 case p of
adamc@589 450 Prim.String s =>
adamc@589 451 str ("\""
adamc@589 452 ^ String.translate (fn #"'" =>
adamc@589 453 if mode = Attribute then
adamc@589 454 "\\047"
adamc@589 455 else
adamc@589 456 "'"
adamc@589 457 | #"\"" => "\\\""
adamc@589 458 | #"<" =>
adamc@589 459 if mode = Script then
adamc@589 460 "<"
adamc@589 461 else
adamc@589 462 "\\074"
adamc@589 463 | #"\\" => "\\\\"
adamc@646 464 | #"\n" => "\\n"
adamc@646 465 | #"\r" => "\\r"
adamc@646 466 | #"\t" => "\\t"
adamc@646 467 | ch =>
adamc@646 468 if Char.isPrint ch then
adamc@646 469 String.str ch
adamc@646 470 else
adamc@646 471 "\\" ^ padWith (#"0",
adamc@646 472 Int.fmt StringCvt.OCT (ord ch),
adamc@646 473 3)) s
adamc@589 474 ^ "\"")
adamc@589 475 | _ => str (Prim.toString p)
adamc@589 476
adamc@589 477 fun jsPat depth inner (p, _) succ fail =
adamc@589 478 case p of
adamc@589 479 PWild => succ
adamc@589 480 | PVar _ => strcat [str ("(_" ^ Int.toString (len + inner) ^ "=d"
adamc@589 481 ^ Int.toString depth ^ ","),
adamc@589 482 succ,
adamc@589 483 str ")"]
adamc@589 484 | PPrim p => strcat [str ("(d" ^ Int.toString depth ^ "=="),
adamc@589 485 jsPrim p,
adamc@589 486 str "?",
adamc@589 487 succ,
adamc@589 488 str ":",
adamc@589 489 fail,
adamc@589 490 str ")"]
adamc@589 491 | PCon (_, PConFfi {mod = "Basis", con = "True", ...}, NONE) =>
adamc@589 492 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 493 succ,
adamc@589 494 str ":",
adamc@589 495 fail,
adamc@589 496 str ")"]
adamc@589 497 | PCon (_, PConFfi {mod = "Basis", con = "False", ...}, NONE) =>
adamc@589 498 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 499 fail,
adamc@589 500 str ":",
adamc@589 501 succ,
adamc@589 502 str ")"]
adamc@596 503 | PCon (Option, _, NONE) =>
adamc@596 504 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@596 505 fail,
adamc@596 506 str ":",
adamc@596 507 succ,
adamc@596 508 str ")"]
adamc@596 509 | PCon (Option, PConVar n, SOME p) =>
adamc@596 510 (case IM.find (someTs, n) of
adamc@596 511 NONE => raise Fail "Jscomp: Not in someTs"
adamc@596 512 | SOME t =>
adamc@596 513 strcat [str ("(d" ^ Int.toString depth ^ "?("
adamc@596 514 ^ (if isNullable t then
adamc@596 515 "d" ^ Int.toString depth ^ "=d"
adamc@596 516 ^ Int.toString depth ^ ".v,"
adamc@596 517 else
adamc@596 518 "")),
adamc@596 519 jsPat depth inner p succ fail,
adamc@596 520 str "):",
adamc@596 521 fail,
adamc@596 522 str ")"])
adamc@589 523 | PCon (_, pc, NONE) =>
adamc@589 524 strcat [str ("(d" ^ Int.toString depth ^ "=="),
adamc@589 525 patCon pc,
adamc@589 526 str "?",
adamc@589 527 succ,
adamc@589 528 str ":",
adamc@589 529 fail,
adamc@589 530 str ")"]
adamc@589 531 | PCon (_, pc, SOME p) =>
adamc@589 532 strcat [str ("(d" ^ Int.toString depth ^ ".n=="),
adamc@589 533 patCon pc,
adamc@589 534 str ("?(d" ^ Int.toString depth ^ "=d" ^ Int.toString depth ^ ".v,"),
adamc@589 535 jsPat depth inner p succ fail,
adamc@589 536 str "):",
adamc@589 537 fail,
adamc@589 538 str ")"]
adamc@589 539 | PRecord xps =>
adamc@589 540 let
adamc@589 541 val (_, succ) = foldl
adamc@589 542 (fn ((x, p, _), (inner, succ)) =>
adamc@589 543 (inner + E.patBindsN p,
adamc@589 544 strcat [str ("(d" ^ Int.toString (depth+1) ^ "=d"
adamc@589 545 ^ Int.toString depth ^ "._" ^ x ^ ","),
adamc@589 546 jsPat (depth+1) inner p succ fail,
adamc@589 547 str ")"]))
adamc@589 548 (inner, succ) xps
adamc@589 549 in
adamc@589 550 succ
adamc@589 551 end
adamc@589 552 | PNone _ => strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 553 fail,
adamc@589 554 str ":",
adamc@589 555 succ,
adamc@589 556 str ")"]
adamc@594 557 | PSome (t, p) => strcat (str ("(d" ^ Int.toString depth ^ "?")
adamc@594 558 :: (if isNullable t then
adamc@594 559 [str ("d" ^ Int.toString depth
adamc@594 560 ^ "=d" ^ Int.toString depth ^ ".v")]
adamc@594 561 else
adamc@594 562 [])
adamc@594 563 @ [jsPat depth inner p succ fail,
adamc@594 564 str ":",
adamc@594 565 fail,
adamc@594 566 str ")"])
adamc@589 567
adamc@601 568 val jsifyString = String.translate (fn #"\"" => "\\\""
adamc@601 569 | #"\\" => "\\\\"
adamc@601 570 | ch => String.str ch)
adamc@601 571
adamc@601 572 fun jsifyStringMulti (n, s) =
adamc@601 573 case n of
adamc@601 574 0 => s
adamc@601 575 | _ => jsifyStringMulti (n - 1, jsifyString s)
adamc@601 576
adamc@601 577 fun deStrcat level (all as (e, _)) =
adamc@589 578 case e of
adamc@601 579 EPrim (Prim.String s) => jsifyStringMulti (level, s)
adamc@601 580 | EStrcat (e1, e2) => deStrcat level e1 ^ deStrcat level e2
adamc@601 581 | EFfiApp ("Basis", "jsifyString", [e]) => "\"" ^ deStrcat (level + 1) e ^ "\""
adamc@601 582 | _ => (Print.prefaces "deStrcat" [("e", MonoPrint.p_exp MonoEnv.empty all)];
adamc@601 583 raise Fail "Jscomp: deStrcat")
adamc@590 584
adamc@590 585 val quoteExp = quoteExp loc
adamc@567 586 in
adamc@590 587 (*Print.prefaces "jsE" [("e", MonoPrint.p_exp MonoEnv.empty e)];*)
adamc@590 588
adamc@589 589 case #1 e of
adamc@589 590 EPrim p => (jsPrim p, st)
adamc@589 591 | ERel n =>
adamc@589 592 if n < inner then
adamc@589 593 (str ("_" ^ var n), st)
adamc@589 594 else
adamc@589 595 let
adamc@589 596 val n = n - inner
adamc@589 597 in
adamc@593 598 quoteExp (List.nth (outer, n)) ((ERel (n - skip), loc), st)
adamc@589 599 end
adamc@567 600
adamc@589 601 | ENamed n =>
adamc@589 602 let
adamc@589 603 val st =
adamc@589 604 if IS.member (#included st, n) then
adamc@589 605 st
adamc@589 606 else
adamc@589 607 case IM.find (nameds, n) of
adamc@589 608 NONE => raise Fail "Jscomp: Unbound ENamed"
adamc@589 609 | SOME e =>
adamc@589 610 let
adamc@589 611 val st = {decls = #decls st,
adamc@589 612 script = #script st,
adamc@595 613 included = IS.add (#included st, n),
adamc@595 614 injectors = #injectors st,
adamc@638 615 decoders = #decoders st,
adamc@595 616 maxName = #maxName st}
adamc@578 617
adamc@589 618 val (e, st) = jsExp mode skip [] 0 (e, st)
adamc@601 619 val e = deStrcat 0 e
adamc@589 620
adamc@589 621 val sc = "_n" ^ Int.toString n ^ "=" ^ e ^ ";\n"
adamc@589 622 in
adamc@589 623 {decls = #decls st,
adamc@589 624 script = sc :: #script st,
adamc@595 625 included = #included st,
adamc@595 626 injectors = #injectors st,
adamc@638 627 decoders= #decoders st,
adamc@595 628 maxName = #maxName st}
adamc@589 629 end
adamc@589 630 in
adamc@589 631 (str ("_n" ^ Int.toString n), st)
adamc@589 632 end
adamc@589 633
adamc@596 634 | ECon (Option, _, NONE) => (str "null", st)
adamc@596 635 | ECon (Option, PConVar n, SOME e) =>
adamc@596 636 let
adamc@596 637 val (e, st) = jsE inner (e, st)
adamc@596 638 in
adamc@596 639 case IM.find (someTs, n) of
adamc@596 640 NONE => raise Fail "Jscomp: Not in someTs [2]"
adamc@596 641 | SOME t =>
adamc@596 642 (if isNullable t then
adamc@596 643 strcat [str "{v:",
adamc@596 644 e,
adamc@596 645 str "}"]
adamc@596 646 else
adamc@596 647 e, st)
adamc@596 648 end
adamc@596 649
adamc@589 650 | ECon (_, pc, NONE) => (patCon pc, st)
adamc@589 651 | ECon (_, pc, SOME e) =>
adamc@589 652 let
adamc@589 653 val (s, st) = jsE inner (e, st)
adamc@589 654 in
adamc@589 655 (strcat [str "{n:",
adamc@589 656 patCon pc,
adamc@589 657 str ",v:",
adamc@589 658 s,
adamc@589 659 str "}"], st)
adamc@589 660 end
adamc@596 661
adamc@589 662 | ENone _ => (str "null", st)
adamc@589 663 | ESome (t, e) =>
adamc@572 664 let
adamc@572 665 val (e, st) = jsE inner (e, st)
adamc@572 666 in
adamc@589 667 (if isNullable t then
adamc@589 668 strcat [str "{v:", e, str "}"]
adamc@589 669 else
adamc@589 670 e, st)
adamc@589 671 end
adamc@589 672
adamc@589 673 | EFfi k =>
adamc@589 674 let
adamc@589 675 val name = case ffi k of
adamc@589 676 NONE => (EM.errorAt loc ("Unsupported FFI identifier " ^ #2 k
adamc@589 677 ^ " in JavaScript");
adamc@589 678 "ERROR")
adamc@589 679 | SOME s => s
adamc@589 680 in
adamc@589 681 (str name, st)
adamc@589 682 end
adamc@589 683 | EFfiApp (m, x, args) =>
adamc@589 684 let
adamc@589 685 val args =
adamc@589 686 case (m, x, args) of
adamc@589 687 ("Basis", "new_client_source", [(EJavaScript (_, e, _), _)]) => [e]
adamc@589 688 | ("Basis", "set_client_source", [e1, (EJavaScript (_, e2, _), _)]) => [e1, e2]
adamc@589 689 | _ => args
adamc@589 690
adamc@589 691 val name = case ffi (m, x) of
adamc@589 692 NONE => (EM.errorAt loc ("Unsupported FFI function "
adamc@589 693 ^ x ^ " in JavaScript");
adamc@589 694 "ERROR")
adamc@589 695 | SOME s => s
adamc@589 696 in
adamc@589 697 case args of
adamc@589 698 [] => (str (name ^ "()"), st)
adamc@589 699 | [e] =>
adamc@589 700 let
adamc@589 701 val (e, st) = jsE inner (e, st)
adamc@589 702 in
adamc@589 703 (strcat [str (name ^ "("),
adamc@589 704 e,
adamc@589 705 str ")"], st)
adamc@589 706 end
adamc@589 707 | e :: es =>
adamc@589 708 let
adamc@589 709 val (e, st) = jsE inner (e, st)
adamc@589 710 val (es, st) = ListUtil.foldlMapConcat
adamc@589 711 (fn (e, st) =>
adamc@589 712 let
adamc@589 713 val (e, st) = jsE inner (e, st)
adamc@589 714 in
adamc@589 715 ([str ",", e], st)
adamc@589 716 end)
adamc@589 717 st es
adamc@589 718 in
adamc@589 719 (strcat (str (name ^ "(")
adamc@589 720 :: e
adamc@589 721 :: es
adamc@589 722 @ [str ")"]), st)
adamc@589 723 end
adamc@589 724 end
adamc@589 725
adamc@589 726 | EApp (e1, e2) =>
adamc@589 727 let
adamc@589 728 val (e1, st) = jsE inner (e1, st)
adamc@589 729 val (e2, st) = jsE inner (e2, st)
adamc@589 730 in
adamc@589 731 (strcat [e1, str "(", e2, str ")"], st)
adamc@589 732 end
adamc@589 733 | EAbs (_, _, _, e) =>
adamc@589 734 let
adamc@589 735 val locals = List.tabulate
adamc@589 736 (varDepth e,
adamc@589 737 fn i => str ("var _" ^ Int.toString (len + inner + i + 1) ^ ";"))
adamc@589 738 val (e, st) = jsE (inner + 1) (e, st)
adamc@589 739 in
adamc@589 740 (strcat (str ("function(_"
adamc@589 741 ^ Int.toString (len + inner)
adamc@589 742 ^ "){")
adamc@589 743 :: locals
adamc@589 744 @ [str "return ",
adamc@589 745 e,
adamc@589 746 str "}"]),
adamc@589 747 st)
adamc@589 748 end
adamc@589 749
adamc@589 750 | EUnop (s, e) =>
adamc@589 751 let
adamc@589 752 val (e, st) = jsE inner (e, st)
adamc@589 753 in
adamc@589 754 (strcat [str ("(" ^ s),
adamc@572 755 e,
adamc@589 756 str ")"],
adamc@589 757 st)
adamc@589 758 end
adamc@589 759 | EBinop (s, e1, e2) =>
adamc@589 760 let
adamc@589 761 val (e1, st) = jsE inner (e1, st)
adamc@589 762 val (e2, st) = jsE inner (e2, st)
adamc@589 763 in
adamc@589 764 (strcat [str "(",
adamc@589 765 e1,
adamc@589 766 str s,
adamc@589 767 e2,
adamc@589 768 str ")"],
adamc@589 769 st)
adamc@589 770 end
adamc@589 771
adamc@589 772 | ERecord [] => (str "null", st)
adamc@589 773 | ERecord [(x, e, _)] =>
adamc@589 774 let
adamc@589 775 val (e, st) = jsE inner (e, st)
adamc@589 776 in
adamc@589 777 (strcat [str "{_x:", e, str "}"], st)
adamc@589 778 end
adamc@589 779 | ERecord ((x, e, _) :: xes) =>
adamc@589 780 let
adamc@589 781 val (e, st) = jsE inner (e, st)
adamc@589 782
adamc@589 783 val (es, st) =
adamc@589 784 foldr (fn ((x, e, _), (es, st)) =>
adamc@589 785 let
adamc@589 786 val (e, st) = jsE inner (e, st)
adamc@589 787 in
adamc@589 788 (str (",_" ^ x ^ ":")
adamc@589 789 :: e
adamc@589 790 :: es,
adamc@589 791 st)
adamc@589 792 end)
adamc@589 793 ([str "}"], st) xes
adamc@589 794 in
adamc@589 795 (strcat (str ("{_" ^ x ^ ":")
adamc@589 796 :: e
adamc@589 797 :: es),
adamc@589 798 st)
adamc@589 799 end
adamc@589 800 | EField (e, x) =>
adamc@589 801 let
adamc@589 802 val (e, st) = jsE inner (e, st)
adamc@589 803 in
adamc@589 804 (strcat [e,
adamc@589 805 str ("._" ^ x)], st)
adamc@589 806 end
adamc@589 807
adamc@591 808 | ECase (e', pes, {result, ...}) =>
adamc@679 809 (*if closedUpto inner e andalso List.all (fn (_, e) => closedUpto inner e) pes then
adamc@593 810 let
adamc@593 811 val (e', st) = quoteExp result ((ERel 0, loc), st)
adamc@593 812 in
adamc@593 813 ((ELet ("js", result, e, e'), loc),
adamc@593 814 st)
adamc@593 815 end
adamc@679 816 else*)
adamc@591 817 let
adamc@591 818 val plen = length pes
adamc@589 819
adamc@591 820 val (cases, st) = ListUtil.foldliMap
adamc@591 821 (fn (i, (p, e), st) =>
adamc@591 822 let
adamc@591 823 val (e, st) = jsE (inner + E.patBindsN p) (e, st)
adamc@591 824 val fail =
adamc@591 825 if i = plen - 1 then
adamc@591 826 str "pf()"
adamc@591 827 else
adamc@591 828 str ("c" ^ Int.toString (i+1) ^ "()")
adamc@591 829 val c = jsPat 0 inner p e fail
adamc@591 830 in
adamc@591 831 (strcat [str ("c" ^ Int.toString i ^ "=function(){return "),
adamc@591 832 c,
adamc@591 833 str "},"],
adamc@591 834 st)
adamc@591 835 end)
adamc@591 836 st pes
adamc@589 837
adamc@591 838 val (e, st) = jsE inner (e', st)
adamc@591 839 in
adamc@591 840 (strcat (str "("
adamc@591 841 :: List.revAppend (cases,
adamc@591 842 [str "d0=",
adamc@591 843 e,
adamc@591 844 str ",c0())"])), st)
adamc@591 845 end
adamc@589 846
adamc@589 847 | EStrcat (e1, e2) =>
adamc@589 848 let
adamc@589 849 val (e1, st) = jsE inner (e1, st)
adamc@589 850 val (e2, st) = jsE inner (e2, st)
adamc@589 851 in
adamc@589 852 (strcat [str "(", e1, str "+", e2, str ")"], st)
adamc@589 853 end
adamc@589 854
adamc@589 855 | EError (e, _) =>
adamc@589 856 let
adamc@589 857 val (e, st) = jsE inner (e, st)
adamc@589 858 in
adamc@589 859 (strcat [str "alert(\"ERROR: \"+", e, str ")"],
adamc@589 860 st)
adamc@589 861 end
adamc@589 862
adamc@589 863 | EWrite e =>
adamc@589 864 let
adamc@589 865 val (e, st) = jsE inner (e, st)
adamc@589 866 in
adamc@589 867 (strcat [str "document.write(",
adamc@589 868 e,
adamc@589 869 str ".v)"], st)
adamc@589 870 end
adamc@589 871
adamc@589 872 | ESeq (e1, e2) =>
adamc@589 873 let
adamc@589 874 val (e1, st) = jsE inner (e1, st)
adamc@589 875 val (e2, st) = jsE inner (e2, st)
adamc@589 876 in
adamc@589 877 (strcat [str "(", e1, str ",", e2, str ")"], st)
adamc@589 878 end
adamc@589 879 | ELet (_, _, e1, e2) =>
adamc@589 880 let
adamc@589 881 val (e1, st) = jsE inner (e1, st)
adamc@589 882 val (e2, st) = jsE (inner + 1) (e2, st)
adamc@589 883 in
adamc@589 884 (strcat [str ("(_" ^ Int.toString (len + inner) ^ "="),
adamc@589 885 e1,
adamc@589 886 str ",",
adamc@589 887 e2,
adamc@572 888 str ")"], st)
adamc@572 889 end
adamc@589 890
adamc@601 891 | EJavaScript (Source _, _, SOME _) => (e, st)
adamc@603 892 | EJavaScript (_, _, SOME e) =>
adamc@603 893 (strcat [str "\"cr(\"+ca(function(){return ",
adamc@603 894 e,
adamc@603 895 str "})+\")\""],
adamc@603 896 st)
adamc@590 897
adamc@589 898 | EClosure _ => unsupported "EClosure"
adamc@589 899 | EQuery _ => unsupported "Query"
adamc@589 900 | EDml _ => unsupported "DML"
adamc@589 901 | ENextval _ => unsupported "Nextval"
adamc@589 902 | EUnurlify _ => unsupported "EUnurlify"
adamc@601 903 | EJavaScript (_, e, _) =>
adamc@601 904 let
adamc@601 905 val (e, st) = jsE inner (e, st)
adamc@601 906 in
adamc@603 907 (strcat [str "\"cr(\"+ca(function(){return ",
adamc@603 908 e,
adamc@603 909 str "})+\")\""],
adamc@603 910 st)
adamc@601 911 end
adamc@590 912
adamc@589 913 | ESignalReturn e =>
adamc@572 914 let
adamc@572 915 val (e, st) = jsE inner (e, st)
adamc@572 916 in
adamc@589 917 (strcat [str "sr(",
adamc@589 918 e,
adamc@589 919 str ")"],
adamc@589 920 st)
adamc@589 921 end
adamc@589 922 | ESignalBind (e1, e2) =>
adamc@589 923 let
adamc@589 924 val (e1, st) = jsE inner (e1, st)
adamc@589 925 val (e2, st) = jsE inner (e2, st)
adamc@589 926 in
adamc@589 927 (strcat [str "sb(",
adamc@589 928 e1,
adamc@589 929 str ",",
adamc@589 930 e2,
adamc@589 931 str ")"],
adamc@589 932 st)
adamc@589 933 end
adamc@589 934 | ESignalSource e =>
adamc@589 935 let
adamc@589 936 val (e, st) = jsE inner (e, st)
adamc@589 937 in
adamc@589 938 (strcat [str "ss(",
adamc@589 939 e,
adamc@589 940 str ")"],
adamc@589 941 st)
adamc@572 942 end
adamc@608 943
adamc@614 944 | EServerCall (e, ek, t) =>
adamc@609 945 let
adamc@614 946 val (e, st) = jsE inner (e, st)
adamc@609 947 val (ek, st) = jsE inner (ek, st)
adamc@613 948 val (unurl, st) = unurlifyExp loc (t, st)
adamc@609 949 in
adamc@614 950 (strcat [str ("rc(\"" ^ !Monoize.urlPrefix ^ "\"+"),
adamc@614 951 e,
adamc@614 952 str (", function(s){var t=s.split(\"/\");var i=0;return "
adamc@613 953 ^ unurl ^ "},"),
adamc@609 954 ek,
adamc@609 955 str ")"],
adamc@609 956 st)
adamc@609 957 end
adamc@670 958
adamc@670 959 | ERecv (e, ek, t) =>
adamc@670 960 let
adamc@670 961 val (e, st) = jsE inner (e, st)
adamc@670 962 val (ek, st) = jsE inner (ek, st)
adamc@670 963 val (unurl, st) = unurlifyExp loc (t, st)
adamc@670 964 in
adamc@670 965 (strcat [str "rv(",
adamc@670 966 e,
adamc@670 967 str (", function(s){var t=s.split(\"/\");var i=0;return "
adamc@670 968 ^ unurl ^ "},"),
adamc@670 969 ek,
adamc@670 970 str ")"],
adamc@670 971 st)
adamc@670 972 end
adamc@567 973 end
adamc@589 974 in
adamc@589 975 jsE
adamc@589 976 end
adamc@567 977
adamc@589 978 val decl : state -> decl -> decl * state =
adamc@589 979 U.Decl.foldMapB {typ = fn x => x,
adamc@589 980 exp = fn (env, e, st) =>
adamc@589 981 let
adamc@589 982 fun doCode m skip env orig e =
adamc@589 983 let
adamc@589 984 val len = length env
adamc@589 985 fun str s = (EPrim (Prim.String s), #2 e)
adamc@567 986
adamc@589 987 val locals = List.tabulate
adamc@589 988 (varDepth e,
adamc@589 989 fn i => str ("var _" ^ Int.toString (len + i) ^ ";"))
adamc@589 990 val (e, st) = jsExp m skip env 0 (e, st)
adamc@589 991 in
adamc@589 992 (EJavaScript (m, orig, SOME (strcat (#2 e) (locals @ [e]))), st)
adamc@589 993 end
adamc@589 994 in
adamc@589 995 case e of
adamc@651 996 EJavaScript (m, orig, NONE) =>
adamc@591 997 doCode m 0 env orig orig
adamc@589 998 | _ => (e, st)
adamc@589 999 end,
adamc@589 1000 decl = fn (_, e, st) => (e, st),
adamc@589 1001 bind = fn (env, U.Decl.RelE (_, t)) => t :: env
adamc@589 1002 | (env, _) => env}
adamc@589 1003 []
adamc@567 1004
adamc@567 1005 fun doDecl (d, st) =
adamc@567 1006 let
adamc@567 1007 val (d, st) = decl st d
adamc@567 1008 in
adamc@567 1009 (List.revAppend (#decls st, [d]),
adamc@567 1010 {decls = [],
adamc@589 1011 script = #script st,
adamc@595 1012 included = #included st,
adamc@595 1013 injectors = #injectors st,
adamc@638 1014 decoders = #decoders st,
adamc@595 1015 maxName = #maxName st})
adamc@567 1016 end
adamc@567 1017
adamc@567 1018 val (ds, st) = ListUtil.foldlMapConcat doDecl
adamc@567 1019 {decls = [],
adamc@589 1020 script = [],
adamc@595 1021 included = IS.empty,
adamc@595 1022 injectors = IM.empty,
adamc@638 1023 decoders = IM.empty,
adamc@595 1024 maxName = U.File.maxName file + 1}
adamc@567 1025 file
adamc@569 1026
adamc@569 1027 val inf = TextIO.openIn (OS.Path.joinDirFile {dir = Config.libJs, file = "urweb.js"})
adamc@569 1028 fun lines acc =
adamc@569 1029 case TextIO.inputLine inf of
adamc@569 1030 NONE => String.concat (rev acc)
adamc@569 1031 | SOME line => lines (line :: acc)
adamc@569 1032 val lines = lines []
adamc@567 1033 in
adamc@569 1034 TextIO.closeIn inf;
adamc@589 1035 (DJavaScript (lines ^ String.concat (rev (#script st))), ErrorMsg.dummySpan) :: ds
adamc@567 1036 end
adamc@567 1037
adamc@567 1038 end