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annotate src/jscomp.sml @ 852:4d4c62d95b9c

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New release
author Adam Chlipala <adamc@hcoop.net>
date Tue, 23 Jun 2009 12:53:47 -0400
parents 1c2f335297b7
children ae9e22822ec5
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@800 39 structure TM = BinaryMapFn(struct
adamc@800 40 type ord_key = typ
adamc@800 41 val compare = U.Typ.compare
adamc@800 42 end)
adamc@800 43
adamc@567 44 type state = {
adamc@840 45 decls : (string * int * (string * int * typ option) list) list,
adamc@589 46 script : string list,
adamc@595 47 included : IS.set,
adamc@595 48 injectors : int IM.map,
adamc@800 49 listInjectors : int TM.map,
adamc@638 50 decoders : int IM.map,
adamc@595 51 maxName : int
adamc@567 52 }
adamc@567 53
adamc@567 54 fun varDepth (e, _) =
adamc@567 55 case e of
adamc@567 56 EPrim _ => 0
adamc@567 57 | ERel _ => 0
adamc@567 58 | ENamed _ => 0
adamc@567 59 | ECon (_, _, NONE) => 0
adamc@567 60 | ECon (_, _, SOME e) => varDepth e
adamc@567 61 | ENone _ => 0
adamc@567 62 | ESome (_, e) => varDepth e
adamc@567 63 | EFfi _ => 0
adamc@567 64 | EFfiApp (_, _, es) => foldl Int.max 0 (map varDepth es)
adamc@567 65 | EApp (e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@567 66 | EAbs _ => 0
adamc@567 67 | EUnop (_, e) => varDepth e
adamc@567 68 | EBinop (_, e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@567 69 | ERecord xes => foldl Int.max 0 (map (fn (_, e, _) => varDepth e) xes)
adamc@567 70 | EField (e, _) => varDepth e
adamc@567 71 | ECase (e, pes, _) =>
adamc@567 72 foldl Int.max (varDepth e)
adamc@567 73 (map (fn (p, e) => E.patBindsN p + varDepth e) pes)
adamc@567 74 | EStrcat (e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@567 75 | EError (e, _) => varDepth e
adamc@741 76 | EReturnBlob {blob = e1, mimeType = e2, ...} => Int.max (varDepth e1, varDepth e2)
adamc@567 77 | EWrite e => varDepth e
adamc@567 78 | ESeq (e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@567 79 | ELet (_, _, e1, e2) => Int.max (varDepth e1, 1 + varDepth e2)
adamc@567 80 | EClosure _ => 0
adamc@567 81 | EQuery _ => 0
adamc@567 82 | EDml _ => 0
adamc@567 83 | ENextval _ => 0
adamc@567 84 | EUnurlify _ => 0
adamc@567 85 | EJavaScript _ => 0
adamc@568 86 | ESignalReturn e => varDepth e
adamc@572 87 | ESignalBind (e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@574 88 | ESignalSource e => varDepth e
adamc@736 89 | EServerCall (e, ek, _, _) => Int.max (varDepth e, varDepth ek)
adamc@670 90 | ERecv (e, ek, _) => Int.max (varDepth e, varDepth ek)
adamc@695 91 | ESleep (e, ek) => Int.max (varDepth e, varDepth ek)
adamc@567 92
adamc@591 93 fun closedUpto d =
adamc@591 94 let
adamc@591 95 fun cu inner (e, _) =
adamc@591 96 case e of
adamc@591 97 EPrim _ => true
adamc@591 98 | ERel n => n < inner orelse n - inner >= d
adamc@591 99 | ENamed _ => true
adamc@591 100 | ECon (_, _, NONE) => true
adamc@591 101 | ECon (_, _, SOME e) => cu inner e
adamc@591 102 | ENone _ => true
adamc@591 103 | ESome (_, e) => cu inner e
adamc@591 104 | EFfi _ => true
adamc@591 105 | EFfiApp (_, _, es) => List.all (cu inner) es
adamc@591 106 | EApp (e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 107 | EAbs (_, _, _, e) => cu (inner + 1) e
adamc@591 108 | EUnop (_, e) => cu inner e
adamc@591 109 | EBinop (_, e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 110 | ERecord xes => List.all (fn (_, e, _) => cu inner e) xes
adamc@591 111 | EField (e, _) => cu inner e
adamc@591 112 | ECase (e, pes, _) =>
adamc@591 113 cu inner e
adamc@591 114 andalso List.all (fn (p, e) => cu (inner + E.patBindsN p) e) pes
adamc@591 115 | EStrcat (e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 116 | EError (e, _) => cu inner e
adamc@741 117 | EReturnBlob {blob = e1, mimeType = e2, ...} => cu inner e1 andalso cu inner e2
adamc@591 118 | EWrite e => cu inner e
adamc@591 119 | ESeq (e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 120 | ELet (_, _, e1, e2) => cu inner e1 andalso cu (inner + 1) e2
adamc@591 121 | EClosure (_, es) => List.all (cu inner) es
adamc@591 122 | EQuery {query, body, initial, ...} =>
adamc@591 123 cu inner query
adamc@591 124 andalso cu (inner + 2) body
adamc@591 125 andalso cu inner initial
adamc@591 126 | EDml e => cu inner e
adamc@591 127 | ENextval e => cu inner e
adamc@591 128 | EUnurlify (e, _) => cu inner e
adamc@815 129 | EJavaScript (_, e) => cu inner e
adamc@591 130 | ESignalReturn e => cu inner e
adamc@591 131 | ESignalBind (e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 132 | ESignalSource e => cu inner e
adamc@736 133 | EServerCall (e, ek, _, _) => cu inner e andalso cu inner ek
adamc@670 134 | ERecv (e, ek, _) => cu inner e andalso cu inner ek
adamc@695 135 | ESleep (e, ek) => cu inner e andalso cu inner ek
adamc@591 136 in
adamc@591 137 cu 0
adamc@591 138 end
adamc@591 139
adamc@568 140 fun strcat loc es =
adamc@568 141 case es of
adamc@568 142 [] => (EPrim (Prim.String ""), loc)
adamc@568 143 | [x] => x
adamc@568 144 | x :: es' => (EStrcat (x, strcat loc es'), loc)
adamc@568 145
adamc@801 146 fun patDepth (p, _) =
adamc@801 147 case p of
adamc@801 148 PWild => 0
adamc@801 149 | PVar _ => 0
adamc@801 150 | PPrim _ => 0
adamc@801 151 | PCon (_, _, NONE) => 0
adamc@801 152 | PCon (_, _, SOME p) => 1 + patDepth p
adamc@801 153 | PRecord xpts => foldl Int.max 0 (map (fn (_, p, _) => 1 + patDepth p) xpts)
adamc@801 154 | PNone _ => 0
adamc@801 155 | PSome (_, p) => 1 + patDepth p
adamc@801 156
adamc@801 157 val compact =
adamc@801 158 U.Exp.mapB {typ = fn t => t,
adamc@801 159 exp = fn inner => fn e =>
adamc@801 160 case e of
adamc@801 161 ERel n =>
adamc@801 162 if n >= inner then
adamc@801 163 ERel (n - inner)
adamc@801 164 else
adamc@801 165 e
adamc@801 166 | _ => e,
adamc@801 167 bind = fn (inner, b) =>
adamc@801 168 case b of
adamc@801 169 U.Exp.RelE _ => inner+1
adamc@801 170 | _ => inner}
adamc@813 171
adamc@815 172 exception CantEmbed of typ
adamc@815 173
adamc@847 174 fun inString {needle, haystack} =
adamc@847 175 let
adamc@847 176 val (_, suffix) = Substring.position needle (Substring.full haystack)
adamc@847 177 in
adamc@847 178 not (Substring.isEmpty suffix)
adamc@847 179 end
adamc@847 180
adamc@589 181 fun process file =
adamc@567 182 let
adamc@596 183 val (someTs, nameds) =
adamc@596 184 foldl (fn ((DVal (_, n, t, e, _), _), (someTs, nameds)) => (someTs, IM.insert (nameds, n, e))
adamc@596 185 | ((DValRec vis, _), (someTs, nameds)) =>
adamc@596 186 (someTs, foldl (fn ((_, n, _, e, _), nameds) => IM.insert (nameds, n, e))
adamc@596 187 nameds vis)
adamc@808 188 | ((DDatatype dts, _), state as (someTs, nameds)) =>
adamc@808 189 (foldl (fn ((_, _, cs), someTs) =>
adamc@808 190 if ElabUtil.classifyDatatype cs = Option then
adamc@808 191 foldl (fn ((_, n, SOME t), someTs) => IM.insert (someTs, n, t)
adamc@808 192 | (_, someTs) => someTs) someTs cs
adamc@808 193 else
adamc@808 194 someTs) someTs dts,
adamc@808 195 nameds)
adamc@595 196 | (_, state) => state)
adamc@596 197 (IM.empty, IM.empty) file
adamc@567 198
adamc@590 199 fun str loc s = (EPrim (Prim.String s), loc)
adamc@590 200
adamc@594 201 fun isNullable (t, _) =
adamc@594 202 case t of
adamc@594 203 TOption _ => true
adamc@841 204 | TList _ => true
adamc@841 205 | TDatatype (_, ref (Option, _)) => true
adamc@594 206 | TRecord [] => true
adamc@594 207 | _ => false
adamc@594 208
adamc@593 209 fun quoteExp loc (t : typ) (e, st) =
adamc@590 210 case #1 t of
adamc@593 211 TSource => (strcat loc [str loc "s",
adamc@593 212 (EFfiApp ("Basis", "htmlifyInt", [e]), loc)], st)
adamc@590 213
adamc@593 214 | TRecord [] => (str loc "null", st)
adamc@593 215 | TRecord [(x, t)] =>
adamc@593 216 let
adamc@593 217 val (e, st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 218 in
adamc@593 219 (strcat loc [str loc ("{_" ^ x ^ ":"),
adamc@593 220 e,
adamc@593 221 str loc "}"], st)
adamc@593 222 end
adamc@593 223 | TRecord ((x, t) :: xts) =>
adamc@593 224 let
adamc@593 225 val (e', st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 226 val (es, st) = ListUtil.foldlMap
adamc@593 227 (fn ((x, t), st) =>
adamc@593 228 let
adamc@593 229 val (e, st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 230 in
adamc@593 231 (strcat loc [str loc (",_" ^ x ^ ":"), e], st)
adamc@593 232 end)
adamc@593 233 st xts
adamc@593 234 in
adamc@593 235 (strcat loc (str loc ("{_" ^ x ^ ":")
adamc@593 236 :: e'
adamc@593 237 :: es
adamc@593 238 @ [str loc "}"]), st)
adamc@593 239 end
adamc@590 240
adamc@593 241 | TFfi ("Basis", "string") => ((EFfiApp ("Basis", "jsifyString", [e]), loc), st)
adamc@593 242 | TFfi ("Basis", "int") => ((EFfiApp ("Basis", "htmlifyInt", [e]), loc), st)
adamc@593 243 | TFfi ("Basis", "float") => ((EFfiApp ("Basis", "htmlifyFloat", [e]), loc), st)
adamc@682 244 | TFfi ("Basis", "channel") => ((EFfiApp ("Basis", "jsifyChannel", [e]), loc), st)
adamc@593 245
adamc@593 246 | TFfi ("Basis", "bool") => ((ECase (e,
adamc@593 247 [((PCon (Enum, PConFfi {mod = "Basis",
adamc@593 248 datatyp = "bool",
adamc@593 249 con = "True",
adamc@593 250 arg = NONE}, NONE), loc),
adamc@593 251 str loc "true"),
adamc@593 252 ((PCon (Enum, PConFfi {mod = "Basis",
adamc@593 253 datatyp = "bool",
adamc@593 254 con = "False",
adamc@593 255 arg = NONE}, NONE), loc),
adamc@593 256 str loc "false")],
adamc@593 257 {disc = (TFfi ("Basis", "bool"), loc),
adamc@593 258 result = (TFfi ("Basis", "string"), loc)}), loc),
adamc@593 259 st)
adamc@592 260
adamc@594 261 | TOption t =>
adamc@594 262 let
adamc@594 263 val (e', st) = quoteExp loc t ((ERel 0, loc), st)
adamc@594 264 in
adamc@813 265 (case #1 e' of
adamc@813 266 EPrim (Prim.String "ERROR") => raise Fail "UHOH"
adamc@813 267 | _ =>
adamc@813 268 (ECase (e,
adamc@813 269 [((PNone t, loc),
adamc@813 270 str loc "null"),
adamc@813 271 ((PSome (t, (PVar ("x", t), loc)), loc),
adamc@813 272 if isNullable t then
adamc@813 273 strcat loc [str loc "{v:", e', str loc "}"]
adamc@813 274 else
adamc@813 275 e')],
adamc@813 276 {disc = (TOption t, loc),
adamc@813 277 result = (TFfi ("Basis", "string"), loc)}), loc),
adamc@594 278 st)
adamc@594 279 end
adamc@594 280
adamc@800 281 | TList t' =>
adamc@800 282 (case TM.find (#listInjectors st, t') of
adamc@800 283 SOME n' => ((EApp ((ENamed n', loc), e), loc), st)
adamc@800 284 | NONE =>
adamc@800 285 let
adamc@800 286 val rt = (TRecord [("1", t'), ("2", t)], loc)
adamc@800 287
adamc@800 288 val n' = #maxName st
adamc@800 289 val st = {decls = #decls st,
adamc@800 290 script = #script st,
adamc@800 291 included = #included st,
adamc@800 292 injectors = #injectors st,
adamc@800 293 listInjectors = TM.insert (#listInjectors st, t', n'),
adamc@800 294 decoders = #decoders st,
adamc@800 295 maxName = n' + 1}
adamc@800 296
adamc@800 297 val s = (TFfi ("Basis", "string"), loc)
adamc@801 298 val (e', st) = quoteExp loc t' ((EField ((ERel 0, loc), "1"), loc), st)
adamc@800 299
adamc@800 300 val body = (ECase ((ERel 0, loc),
adamc@800 301 [((PNone rt, loc),
adamc@800 302 str loc "null"),
adamc@800 303 ((PSome (rt, (PVar ("x", rt), loc)), loc),
adamc@800 304 strcat loc [str loc "{v:{_1:",
adamc@800 305 e',
adamc@800 306 str loc ",_2:",
adamc@800 307 (EApp ((ENamed n', loc),
adamc@800 308 (EField ((ERel 0, loc), "2"), loc)), loc),
adamc@800 309 str loc "}}"])],
adamc@800 310 {disc = t, result = s}), loc)
adamc@800 311 val body = (EAbs ("x", t, s, body), loc)
adamc@800 312
adamc@840 313 val st = {decls = ("jsify", n', (TFun (t, s), loc),
adamc@840 314 body, "jsify") :: #decls st,
adamc@800 315 script = #script st,
adamc@800 316 included = #included st,
adamc@800 317 injectors = #injectors st,
adamc@800 318 listInjectors = #listInjectors st,
adamc@800 319 decoders= #decoders st,
adamc@800 320 maxName = #maxName st}
adamc@800 321
adamc@800 322
adamc@800 323 in
adamc@800 324 ((EApp ((ENamed n', loc), e), loc), st)
adamc@800 325 end)
adamc@800 326
adamc@595 327 | TDatatype (n, ref (dk, cs)) =>
adamc@595 328 (case IM.find (#injectors st, n) of
adamc@595 329 SOME n' => ((EApp ((ENamed n', loc), e), loc), st)
adamc@595 330 | NONE =>
adamc@595 331 let
adamc@595 332 val n' = #maxName st
adamc@595 333 val st = {decls = #decls st,
adamc@595 334 script = #script st,
adamc@595 335 included = #included st,
adamc@595 336 injectors = IM.insert (#injectors st, n, n'),
adamc@800 337 listInjectors = #listInjectors st,
adamc@638 338 decoders = #decoders st,
adamc@595 339 maxName = n' + 1}
adamc@595 340
adamc@595 341 val (pes, st) = ListUtil.foldlMap
adamc@595 342 (fn ((_, cn, NONE), st) =>
adamc@595 343 (((PCon (dk, PConVar cn, NONE), loc),
adamc@596 344 case dk of
adamc@596 345 Option => str loc "null"
adamc@596 346 | _ => str loc (Int.toString cn)),
adamc@595 347 st)
adamc@595 348 | ((_, cn, SOME t), st) =>
adamc@595 349 let
adamc@595 350 val (e, st) = quoteExp loc t ((ERel 0, loc), st)
adamc@595 351 in
adamc@595 352 (((PCon (dk, PConVar cn, SOME (PVar ("x", t), loc)), loc),
adamc@596 353 case dk of
adamc@596 354 Option =>
adamc@596 355 if isNullable t then
adamc@638 356 strcat loc [str loc "{v:",
adamc@596 357 e,
adamc@596 358 str loc "}"]
adamc@596 359 else
adamc@596 360 e
adamc@597 361 | _ => strcat loc [str loc ("{n:" ^ Int.toString cn
adamc@597 362 ^ ",v:"),
adamc@597 363 e,
adamc@597 364 str loc "}"]),
adamc@595 365 st)
adamc@595 366 end)
adamc@595 367 st cs
adamc@595 368
adamc@595 369 val s = (TFfi ("Basis", "string"), loc)
adamc@595 370 val body = (ECase ((ERel 0, loc), pes,
adamc@595 371 {disc = t, result = s}), loc)
adamc@595 372 val body = (EAbs ("x", t, s, body), loc)
adamc@595 373
adamc@840 374 val st = {decls = ("jsify", n', (TFun (t, s), loc),
adamc@840 375 body, "jsify") :: #decls st,
adamc@595 376 script = #script st,
adamc@595 377 included = #included st,
adamc@595 378 injectors = #injectors st,
adamc@800 379 listInjectors = #listInjectors st,
adamc@638 380 decoders= #decoders st,
adamc@595 381 maxName = #maxName st}
adamc@595 382 in
adamc@595 383 ((EApp ((ENamed n', loc), e), loc), st)
adamc@595 384 end)
adamc@595 385
adamc@834 386 | _ => ((*Print.prefaces "Can't embed" [("t", MonoPrint.p_typ MonoEnv.empty t)];*)
adamc@834 387 raise CantEmbed t)
adamc@590 388
adamc@613 389 fun unurlifyExp loc (t : typ, st) =
adamc@613 390 case #1 t of
adamc@613 391 TRecord [] => ("null", st)
adamc@613 392 | TRecord [(x, t)] =>
adamc@613 393 let
adamc@613 394 val (e, st) = unurlifyExp loc (t, st)
adamc@613 395 in
adamc@613 396 ("{_" ^ x ^ ":" ^ e ^ "}",
adamc@613 397 st)
adamc@613 398 end
adamc@613 399 | TRecord ((x, t) :: xts) =>
adamc@613 400 let
adamc@613 401 val (e', st) = unurlifyExp loc (t, st)
adamc@613 402 val (es, st) = ListUtil.foldlMap
adamc@638 403 (fn ((x, t), st) =>
adamc@638 404 let
adamc@638 405 val (e, st) = unurlifyExp loc (t, st)
adamc@638 406 in
adamc@638 407 (",_" ^ x ^ ":" ^ e, st)
adamc@638 408 end)
adamc@638 409 st xts
adamc@613 410 in
adamc@613 411 (String.concat ("{_"
adamc@613 412 :: x
adamc@613 413 :: ":"
adamc@613 414 :: e'
adamc@613 415 :: es
adamc@613 416 @ ["}"]), st)
adamc@613 417 end
adamc@613 418
adamc@679 419 | TFfi ("Basis", "string") => ("uu(t[i++])", st)
adamc@613 420 | TFfi ("Basis", "int") => ("parseInt(t[i++])", st)
adamc@613 421 | TFfi ("Basis", "float") => ("parseFloat(t[i++])", st)
adamc@682 422 | TFfi ("Basis", "channel") => ("(t[i++].length > 0 ? parseInt(t[i]) : null)", st)
adamc@613 423
adamc@613 424 | TFfi ("Basis", "bool") => ("t[i++] == \"True\"", st)
adamc@613 425
adamc@638 426 | TOption t =>
adamc@613 427 let
adamc@638 428 val (e, st) = unurlifyExp loc (t, st)
adamc@638 429 val e = if isNullable t then
adamc@638 430 "{v:" ^ e ^ "}"
adamc@638 431 else
adamc@638 432 e
adamc@613 433 in
adamc@703 434 ("(t[i++]==\"Some\"?" ^ e ^ ":null)", st)
adamc@638 435 end
adamc@613 436
adamc@638 437 | TDatatype (n, ref (dk, cs)) =>
adamc@638 438 (case IM.find (#decoders st, n) of
adamc@638 439 SOME n' => ("(tmp=_n" ^ Int.toString n' ^ "(t,i),i=tmp._1,tmp._2)", st)
adamc@613 440 | NONE =>
adamc@613 441 let
adamc@613 442 val n' = #maxName st
adamc@613 443 val st = {decls = #decls st,
adamc@613 444 script = #script st,
adamc@613 445 included = #included st,
adamc@638 446 injectors = #injectors st,
adamc@800 447 listInjectors = #listInjectors st,
adamc@638 448 decoders = IM.insert (#decoders st, n, n'),
adamc@613 449 maxName = n' + 1}
adamc@613 450
adamc@638 451 val (e, st) = foldl (fn ((x, cn, NONE), (e, st)) =>
adamc@638 452 ("x==\"" ^ x ^ "\"?"
adamc@638 453 ^ (case dk of
adamc@638 454 Option => "null"
adamc@638 455 | _ => Int.toString cn)
adamc@638 456 ^ ":" ^ e,
adamc@613 457 st)
adamc@638 458 | ((x, cn, SOME t), (e, st)) =>
adamc@613 459 let
adamc@638 460 val (e', st) = unurlifyExp loc (t, st)
adamc@613 461 in
adamc@638 462 ("x==\"" ^ x ^ "\"?"
adamc@638 463 ^ (case dk of
adamc@638 464 Option =>
adamc@638 465 if isNullable t then
adamc@638 466 "{v:" ^ e' ^ "}"
adamc@638 467 else
adamc@638 468 e'
adamc@638 469 | _ => "{n:" ^ Int.toString cn ^ ",v:" ^ e' ^ "}")
adamc@638 470 ^ ":" ^ e,
adamc@613 471 st)
adamc@613 472 end)
adamc@810 473 ("pf(\"" ^ ErrorMsg.spanToString loc ^ "\")", st) cs
adamc@613 474
adamc@638 475 val body = "function _n" ^ Int.toString n' ^ "(t,i){var x=t[i++];var r="
adamc@638 476 ^ e ^ ";return {_1:i,_2:r}}\n\n"
adamc@613 477
adamc@638 478 val st = {decls = #decls st,
adamc@638 479 script = body :: #script st,
adamc@613 480 included = #included st,
adamc@613 481 injectors = #injectors st,
adamc@800 482 listInjectors = #listInjectors st,
adamc@638 483 decoders = #decoders st,
adamc@613 484 maxName = #maxName st}
adamc@613 485 in
adamc@638 486 ("(tmp=_n" ^ Int.toString n' ^ "(t,i),i=tmp._1,tmp._2)", st)
adamc@638 487 end)
adamc@613 488
adamc@613 489 | _ => (EM.errorAt loc "Don't know how to unurlify type in JavaScript";
adamc@613 490 Print.prefaces "Can't unurlify" [("t", MonoPrint.p_typ MonoEnv.empty t)];
adamc@613 491 ("ERROR", st))
adamc@613 492
adamc@646 493 fun padWith (ch, s, len) =
adamc@646 494 if size s < len then
adamc@646 495 padWith (ch, String.str ch ^ s, len - 1)
adamc@646 496 else
adamc@646 497 s
adamc@646 498
adamc@794 499 val foundJavaScript = ref false
adamc@794 500
adamc@800 501 fun jsExp mode outer =
adamc@567 502 let
adamc@589 503 val len = length outer
adamc@567 504
adamc@589 505 fun jsE inner (e as (_, loc), st) =
adamc@589 506 let
adamc@590 507 val str = str loc
adamc@567 508
adamc@589 509 fun var n = Int.toString (len + inner - n - 1)
adamc@567 510
adamc@589 511 fun patCon pc =
adamc@589 512 case pc of
adamc@589 513 PConVar n => str (Int.toString n)
adamc@589 514 | PConFfi {mod = "Basis", con = "True", ...} => str "true"
adamc@589 515 | PConFfi {mod = "Basis", con = "False", ...} => str "false"
adamc@589 516 | PConFfi {con, ...} => str ("\"_" ^ con ^ "\"")
adamc@567 517
adamc@591 518 fun unsupported s =
adamc@591 519 (EM.errorAt loc (s ^ " in code to be compiled to JavaScript[2]");
adamc@591 520 (str "ERROR", st))
adamc@577 521
adamc@589 522 val strcat = strcat loc
adamc@584 523
adamc@589 524 fun jsPrim p =
adamc@589 525 case p of
adamc@589 526 Prim.String s =>
adamc@589 527 str ("\""
adamc@589 528 ^ String.translate (fn #"'" =>
adamc@589 529 if mode = Attribute then
adamc@589 530 "\\047"
adamc@589 531 else
adamc@589 532 "'"
adamc@589 533 | #"\"" => "\\\""
adamc@589 534 | #"<" =>
adamc@838 535 (*if mode = Script then
adamc@589 536 "<"
adamc@838 537 else*)
adamc@589 538 "\\074"
adamc@589 539 | #"\\" => "\\\\"
adamc@646 540 | #"\n" => "\\n"
adamc@646 541 | #"\r" => "\\r"
adamc@646 542 | #"\t" => "\\t"
adamc@646 543 | ch =>
adamc@646 544 if Char.isPrint ch then
adamc@646 545 String.str ch
adamc@646 546 else
adamc@646 547 "\\" ^ padWith (#"0",
adamc@646 548 Int.fmt StringCvt.OCT (ord ch),
adamc@646 549 3)) s
adamc@589 550 ^ "\"")
adamc@821 551 | Prim.Char ch => str ("'" ^ String.str ch ^ "'")
adamc@589 552 | _ => str (Prim.toString p)
adamc@589 553
adamc@589 554 fun jsPat depth inner (p, _) succ fail =
adamc@589 555 case p of
adamc@589 556 PWild => succ
adamc@589 557 | PVar _ => strcat [str ("(_" ^ Int.toString (len + inner) ^ "=d"
adamc@589 558 ^ Int.toString depth ^ ","),
adamc@589 559 succ,
adamc@589 560 str ")"]
adamc@589 561 | PPrim p => strcat [str ("(d" ^ Int.toString depth ^ "=="),
adamc@589 562 jsPrim p,
adamc@589 563 str "?",
adamc@589 564 succ,
adamc@589 565 str ":",
adamc@589 566 fail,
adamc@589 567 str ")"]
adamc@589 568 | PCon (_, PConFfi {mod = "Basis", con = "True", ...}, NONE) =>
adamc@589 569 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 570 succ,
adamc@589 571 str ":",
adamc@589 572 fail,
adamc@589 573 str ")"]
adamc@589 574 | PCon (_, PConFfi {mod = "Basis", con = "False", ...}, NONE) =>
adamc@589 575 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 576 fail,
adamc@589 577 str ":",
adamc@589 578 succ,
adamc@589 579 str ")"]
adamc@596 580 | PCon (Option, _, NONE) =>
adamc@596 581 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@596 582 fail,
adamc@596 583 str ":",
adamc@596 584 succ,
adamc@596 585 str ")"]
adamc@596 586 | PCon (Option, PConVar n, SOME p) =>
adamc@596 587 (case IM.find (someTs, n) of
adamc@596 588 NONE => raise Fail "Jscomp: Not in someTs"
adamc@596 589 | SOME t =>
adamc@810 590 strcat [str ("(d" ^ Int.toString depth ^ "?(d"
adamc@810 591 ^ Int.toString (depth+1) ^ "=d" ^ Int.toString depth
adamc@596 592 ^ (if isNullable t then
adamc@810 593 ".v,"
adamc@596 594 else
adamc@813 595 "")
adamc@813 596 ^ ","),
adamc@810 597 jsPat (depth+1) inner p succ fail,
adamc@596 598 str "):",
adamc@596 599 fail,
adamc@596 600 str ")"])
adamc@589 601 | PCon (_, pc, NONE) =>
adamc@589 602 strcat [str ("(d" ^ Int.toString depth ^ "=="),
adamc@589 603 patCon pc,
adamc@589 604 str "?",
adamc@589 605 succ,
adamc@589 606 str ":",
adamc@589 607 fail,
adamc@589 608 str ")"]
adamc@589 609 | PCon (_, pc, SOME p) =>
adamc@589 610 strcat [str ("(d" ^ Int.toString depth ^ ".n=="),
adamc@589 611 patCon pc,
adamc@810 612 str ("?(d" ^ Int.toString (depth+1) ^ "=d" ^ Int.toString depth ^ ".v,"),
adamc@810 613 jsPat (depth+1) inner p succ fail,
adamc@589 614 str "):",
adamc@589 615 fail,
adamc@589 616 str ")"]
adamc@589 617 | PRecord xps =>
adamc@589 618 let
adamc@589 619 val (_, succ) = foldl
adamc@589 620 (fn ((x, p, _), (inner, succ)) =>
adamc@589 621 (inner + E.patBindsN p,
adamc@589 622 strcat [str ("(d" ^ Int.toString (depth+1) ^ "=d"
adamc@589 623 ^ Int.toString depth ^ "._" ^ x ^ ","),
adamc@589 624 jsPat (depth+1) inner p succ fail,
adamc@589 625 str ")"]))
adamc@589 626 (inner, succ) xps
adamc@589 627 in
adamc@589 628 succ
adamc@589 629 end
adamc@589 630 | PNone _ => strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 631 fail,
adamc@589 632 str ":",
adamc@589 633 succ,
adamc@589 634 str ")"]
adamc@829 635 | PSome (t, p) => strcat [str ("(d" ^ Int.toString depth ^ "?(d" ^ Int.toString (depth+1)
adamc@829 636 ^ "=d" ^ Int.toString depth
adamc@829 637 ^ (if isNullable t then
adamc@829 638 ".v"
adamc@829 639 else
adamc@829 640 "")
adamc@829 641 ^ ","),
adamc@829 642 jsPat (depth+1) inner p succ fail,
adamc@829 643 str "):",
adamc@829 644 fail,
adamc@829 645 str ")"]
adamc@589 646
adamc@601 647 val jsifyString = String.translate (fn #"\"" => "\\\""
adamc@601 648 | #"\\" => "\\\\"
adamc@601 649 | ch => String.str ch)
adamc@601 650
adamc@601 651 fun jsifyStringMulti (n, s) =
adamc@601 652 case n of
adamc@601 653 0 => s
adamc@601 654 | _ => jsifyStringMulti (n - 1, jsifyString s)
adamc@601 655
adamc@601 656 fun deStrcat level (all as (e, _)) =
adamc@589 657 case e of
adamc@601 658 EPrim (Prim.String s) => jsifyStringMulti (level, s)
adamc@601 659 | EStrcat (e1, e2) => deStrcat level e1 ^ deStrcat level e2
adamc@601 660 | EFfiApp ("Basis", "jsifyString", [e]) => "\"" ^ deStrcat (level + 1) e ^ "\""
adamc@601 661 | _ => (Print.prefaces "deStrcat" [("e", MonoPrint.p_exp MonoEnv.empty all)];
adamc@601 662 raise Fail "Jscomp: deStrcat")
adamc@590 663
adamc@590 664 val quoteExp = quoteExp loc
adamc@567 665 in
adamc@801 666 (*Print.prefaces "jsE" [("e", MonoPrint.p_exp MonoEnv.empty e),
adamc@801 667 ("inner", Print.PD.string (Int.toString inner))];*)
adamc@590 668
adamc@589 669 case #1 e of
adamc@589 670 EPrim p => (jsPrim p, st)
adamc@589 671 | ERel n =>
adamc@589 672 if n < inner then
adamc@589 673 (str ("_" ^ var n), st)
adamc@589 674 else
adamc@589 675 let
adamc@589 676 val n = n - inner
adamc@813 677 (*val () = Print.prefaces "quote" [("t", MonoPrint.p_typ MonoEnv.empty
adamc@813 678 (List.nth (outer, n)))]*)
adamc@589 679 in
adamc@800 680 quoteExp (List.nth (outer, n)) ((ERel n, loc), st)
adamc@589 681 end
adamc@567 682
adamc@589 683 | ENamed n =>
adamc@589 684 let
adamc@589 685 val st =
adamc@589 686 if IS.member (#included st, n) then
adamc@589 687 st
adamc@589 688 else
adamc@589 689 case IM.find (nameds, n) of
adamc@589 690 NONE => raise Fail "Jscomp: Unbound ENamed"
adamc@589 691 | SOME e =>
adamc@589 692 let
adamc@589 693 val st = {decls = #decls st,
adamc@589 694 script = #script st,
adamc@595 695 included = IS.add (#included st, n),
adamc@595 696 injectors = #injectors st,
adamc@800 697 listInjectors = #listInjectors st,
adamc@638 698 decoders = #decoders st,
adamc@595 699 maxName = #maxName st}
adamc@578 700
adamc@801 701 val old = e
adamc@800 702 val (e, st) = jsExp mode [] 0 (e, st)
adamc@801 703 val new = e
adamc@601 704 val e = deStrcat 0 e
adamc@589 705
adamc@589 706 val sc = "_n" ^ Int.toString n ^ "=" ^ e ^ ";\n"
adamc@589 707 in
adamc@801 708 (*Print.prefaces "jsify'" [("old", MonoPrint.p_exp MonoEnv.empty old),
adamc@801 709 ("new", MonoPrint.p_exp MonoEnv.empty new)];*)
adamc@589 710 {decls = #decls st,
adamc@589 711 script = sc :: #script st,
adamc@595 712 included = #included st,
adamc@595 713 injectors = #injectors st,
adamc@800 714 listInjectors = #listInjectors st,
adamc@638 715 decoders= #decoders st,
adamc@595 716 maxName = #maxName st}
adamc@589 717 end
adamc@589 718 in
adamc@589 719 (str ("_n" ^ Int.toString n), st)
adamc@589 720 end
adamc@589 721
adamc@596 722 | ECon (Option, _, NONE) => (str "null", st)
adamc@596 723 | ECon (Option, PConVar n, SOME e) =>
adamc@596 724 let
adamc@596 725 val (e, st) = jsE inner (e, st)
adamc@596 726 in
adamc@596 727 case IM.find (someTs, n) of
adamc@596 728 NONE => raise Fail "Jscomp: Not in someTs [2]"
adamc@596 729 | SOME t =>
adamc@596 730 (if isNullable t then
adamc@596 731 strcat [str "{v:",
adamc@596 732 e,
adamc@596 733 str "}"]
adamc@596 734 else
adamc@596 735 e, st)
adamc@596 736 end
adamc@596 737
adamc@589 738 | ECon (_, pc, NONE) => (patCon pc, st)
adamc@589 739 | ECon (_, pc, SOME e) =>
adamc@589 740 let
adamc@589 741 val (s, st) = jsE inner (e, st)
adamc@589 742 in
adamc@589 743 (strcat [str "{n:",
adamc@589 744 patCon pc,
adamc@589 745 str ",v:",
adamc@589 746 s,
adamc@589 747 str "}"], st)
adamc@589 748 end
adamc@596 749
adamc@589 750 | ENone _ => (str "null", st)
adamc@589 751 | ESome (t, e) =>
adamc@572 752 let
adamc@572 753 val (e, st) = jsE inner (e, st)
adamc@572 754 in
adamc@589 755 (if isNullable t then
adamc@589 756 strcat [str "{v:", e, str "}"]
adamc@589 757 else
adamc@589 758 e, st)
adamc@589 759 end
adamc@589 760
adamc@589 761 | EFfi k =>
adamc@589 762 let
adamc@765 763 val name = case Settings.jsFunc k of
adamc@589 764 NONE => (EM.errorAt loc ("Unsupported FFI identifier " ^ #2 k
adamc@589 765 ^ " in JavaScript");
adamc@589 766 "ERROR")
adamc@589 767 | SOME s => s
adamc@589 768 in
adamc@589 769 (str name, st)
adamc@589 770 end
adamc@589 771 | EFfiApp (m, x, args) =>
adamc@589 772 let
adamc@765 773 val name = case Settings.jsFunc (m, x) of
adamc@589 774 NONE => (EM.errorAt loc ("Unsupported FFI function "
adamc@589 775 ^ x ^ " in JavaScript");
adamc@589 776 "ERROR")
adamc@589 777 | SOME s => s
adamc@589 778 in
adamc@589 779 case args of
adamc@589 780 [] => (str (name ^ "()"), st)
adamc@589 781 | [e] =>
adamc@589 782 let
adamc@589 783 val (e, st) = jsE inner (e, st)
adamc@589 784 in
adamc@589 785 (strcat [str (name ^ "("),
adamc@589 786 e,
adamc@589 787 str ")"], st)
adamc@589 788 end
adamc@589 789 | e :: es =>
adamc@589 790 let
adamc@589 791 val (e, st) = jsE inner (e, st)
adamc@589 792 val (es, st) = ListUtil.foldlMapConcat
adamc@589 793 (fn (e, st) =>
adamc@589 794 let
adamc@589 795 val (e, st) = jsE inner (e, st)
adamc@589 796 in
adamc@589 797 ([str ",", e], st)
adamc@589 798 end)
adamc@589 799 st es
adamc@589 800 in
adamc@589 801 (strcat (str (name ^ "(")
adamc@589 802 :: e
adamc@589 803 :: es
adamc@589 804 @ [str ")"]), st)
adamc@589 805 end
adamc@589 806 end
adamc@589 807
adamc@589 808 | EApp (e1, e2) =>
adamc@589 809 let
adamc@589 810 val (e1, st) = jsE inner (e1, st)
adamc@589 811 val (e2, st) = jsE inner (e2, st)
adamc@589 812 in
adamc@589 813 (strcat [e1, str "(", e2, str ")"], st)
adamc@589 814 end
adamc@589 815 | EAbs (_, _, _, e) =>
adamc@589 816 let
adamc@589 817 val locals = List.tabulate
adamc@589 818 (varDepth e,
adamc@589 819 fn i => str ("var _" ^ Int.toString (len + inner + i + 1) ^ ";"))
adamc@589 820 val (e, st) = jsE (inner + 1) (e, st)
adamc@589 821 in
adamc@589 822 (strcat (str ("function(_"
adamc@589 823 ^ Int.toString (len + inner)
adamc@589 824 ^ "){")
adamc@589 825 :: locals
adamc@589 826 @ [str "return ",
adamc@589 827 e,
adamc@589 828 str "}"]),
adamc@589 829 st)
adamc@589 830 end
adamc@589 831
adamc@589 832 | EUnop (s, e) =>
adamc@589 833 let
adamc@589 834 val (e, st) = jsE inner (e, st)
adamc@589 835 in
adamc@589 836 (strcat [str ("(" ^ s),
adamc@572 837 e,
adamc@589 838 str ")"],
adamc@589 839 st)
adamc@589 840 end
adamc@589 841 | EBinop (s, e1, e2) =>
adamc@589 842 let
adamc@729 843 val s =
adamc@729 844 case s of
adamc@729 845 "!strcmp" => "=="
adamc@729 846 | _ => s
adamc@729 847
adamc@589 848 val (e1, st) = jsE inner (e1, st)
adamc@589 849 val (e2, st) = jsE inner (e2, st)
adamc@589 850 in
adamc@589 851 (strcat [str "(",
adamc@589 852 e1,
adamc@589 853 str s,
adamc@589 854 e2,
adamc@589 855 str ")"],
adamc@589 856 st)
adamc@589 857 end
adamc@589 858
adamc@589 859 | ERecord [] => (str "null", st)
adamc@589 860 | ERecord [(x, e, _)] =>
adamc@589 861 let
adamc@589 862 val (e, st) = jsE inner (e, st)
adamc@589 863 in
adamc@835 864 (strcat [str ("{_" ^ x ^ ":"), e, str "}"], st)
adamc@589 865 end
adamc@589 866 | ERecord ((x, e, _) :: xes) =>
adamc@589 867 let
adamc@589 868 val (e, st) = jsE inner (e, st)
adamc@589 869
adamc@589 870 val (es, st) =
adamc@589 871 foldr (fn ((x, e, _), (es, st)) =>
adamc@589 872 let
adamc@589 873 val (e, st) = jsE inner (e, st)
adamc@589 874 in
adamc@589 875 (str (",_" ^ x ^ ":")
adamc@589 876 :: e
adamc@589 877 :: es,
adamc@589 878 st)
adamc@589 879 end)
adamc@589 880 ([str "}"], st) xes
adamc@589 881 in
adamc@589 882 (strcat (str ("{_" ^ x ^ ":")
adamc@589 883 :: e
adamc@589 884 :: es),
adamc@589 885 st)
adamc@589 886 end
adamc@589 887 | EField (e, x) =>
adamc@589 888 let
adamc@589 889 val (e, st) = jsE inner (e, st)
adamc@589 890 in
adamc@589 891 (strcat [e,
adamc@589 892 str ("._" ^ x)], st)
adamc@589 893 end
adamc@589 894
adamc@591 895 | ECase (e', pes, {result, ...}) =>
adamc@801 896 let
adamc@801 897 val plen = length pes
adamc@589 898
adamc@801 899 val (cases, st) = ListUtil.foldliMap
adamc@801 900 (fn (i, (p, e), st) =>
adamc@801 901 let
adamc@801 902 val (e, st) = jsE (inner + E.patBindsN p) (e, st)
adamc@801 903 val fail =
adamc@801 904 if i = plen - 1 then
adamc@810 905 str ("pf(\"" ^ ErrorMsg.spanToString loc ^ "\")")
adamc@801 906 else
adamc@801 907 str ("c" ^ Int.toString (i+1) ^ "()")
adamc@801 908 val c = jsPat 0 inner p e fail
adamc@801 909 in
adamc@801 910 (strcat [str ("c" ^ Int.toString i ^ "=function(){return "),
adamc@801 911 c,
adamc@801 912 str "},"],
adamc@801 913 st)
adamc@801 914 end)
adamc@801 915 st pes
adamc@589 916
adamc@801 917 val depth = foldl Int.max 0 (map (fn (p, _) => 1 + patDepth p) pes)
adamc@801 918 val normalDepth = foldl Int.max 0 (map (fn (_, e) => 1 + varDepth e) pes)
adamc@801 919 val (e, st) = jsE inner (e', st)
adamc@801 920
adamc@801 921 val len = inner + len
adamc@801 922 val normalVars = List.tabulate (normalDepth, fn n => "_" ^ Int.toString (n + len))
adamc@801 923 val patVars = List.tabulate (depth, fn n => "d" ^ Int.toString n)
adamc@827 924 val caseVars = ListUtil.mapi (fn (i, _) => "c" ^ Int.toString i) pes
adamc@801 925 in
adamc@801 926 (strcat (str "(function (){ var "
adamc@827 927 :: str (String.concatWith "," (normalVars @ patVars @ caseVars) ^ ";d0=")
adamc@801 928 :: e
adamc@801 929 :: str ";\nreturn ("
adamc@801 930 :: List.revAppend (cases,
adamc@801 931 [str "c0()) } ())"])), st)
adamc@801 932 end
adamc@589 933
adamc@589 934 | EStrcat (e1, e2) =>
adamc@589 935 let
adamc@589 936 val (e1, st) = jsE inner (e1, st)
adamc@589 937 val (e2, st) = jsE inner (e2, st)
adamc@589 938 in
adamc@693 939 (strcat [str "cat(", e1, str ",", e2, str ")"], st)
adamc@589 940 end
adamc@589 941
adamc@589 942 | EError (e, _) =>
adamc@589 943 let
adamc@589 944 val (e, st) = jsE inner (e, st)
adamc@589 945 in
adamc@726 946 (strcat [str "er(", e, str ")"],
adamc@589 947 st)
adamc@589 948 end
adamc@589 949
adamc@589 950 | EWrite e =>
adamc@589 951 let
adamc@589 952 val (e, st) = jsE inner (e, st)
adamc@589 953 in
adamc@589 954 (strcat [str "document.write(",
adamc@589 955 e,
adamc@589 956 str ".v)"], st)
adamc@589 957 end
adamc@589 958
adamc@589 959 | ESeq (e1, e2) =>
adamc@589 960 let
adamc@589 961 val (e1, st) = jsE inner (e1, st)
adamc@589 962 val (e2, st) = jsE inner (e2, st)
adamc@589 963 in
adamc@589 964 (strcat [str "(", e1, str ",", e2, str ")"], st)
adamc@589 965 end
adamc@589 966 | ELet (_, _, e1, e2) =>
adamc@589 967 let
adamc@589 968 val (e1, st) = jsE inner (e1, st)
adamc@589 969 val (e2, st) = jsE (inner + 1) (e2, st)
adamc@589 970 in
adamc@589 971 (strcat [str ("(_" ^ Int.toString (len + inner) ^ "="),
adamc@589 972 e1,
adamc@589 973 str ",",
adamc@589 974 e2,
adamc@572 975 str ")"], st)
adamc@572 976 end
adamc@589 977
adamc@815 978 | EJavaScript (Source _, e) =>
adamc@794 979 (foundJavaScript := true;
adamc@815 980 jsE inner (e, st))
adamc@815 981 | EJavaScript (_, e) =>
adamc@815 982 let
adamc@850 983 val locals = List.tabulate
adamc@850 984 (varDepth e,
adamc@850 985 fn i => str ("var _" ^ Int.toString (len + inner + i) ^ ";"))
adamc@850 986
adamc@815 987 val (e, st) = jsE inner (e, st)
adamc@815 988 in
adamc@815 989 foundJavaScript := true;
adamc@850 990 (strcat (str "cs(function(){"
adamc@850 991 :: locals
adamc@850 992 @ [str "return ",
adamc@850 993 compact inner e,
adamc@850 994 str "})"]),
adamc@815 995 st)
adamc@815 996 end
adamc@590 997
adamc@589 998 | EClosure _ => unsupported "EClosure"
adamc@589 999 | EQuery _ => unsupported "Query"
adamc@589 1000 | EDml _ => unsupported "DML"
adamc@589 1001 | ENextval _ => unsupported "Nextval"
adamc@589 1002 | EUnurlify _ => unsupported "EUnurlify"
adamc@741 1003 | EReturnBlob _ => unsupported "EUnurlify"
adamc@590 1004
adamc@589 1005 | ESignalReturn e =>
adamc@572 1006 let
adamc@572 1007 val (e, st) = jsE inner (e, st)
adamc@572 1008 in
adamc@589 1009 (strcat [str "sr(",
adamc@589 1010 e,
adamc@589 1011 str ")"],
adamc@589 1012 st)
adamc@589 1013 end
adamc@589 1014 | ESignalBind (e1, e2) =>
adamc@589 1015 let
adamc@589 1016 val (e1, st) = jsE inner (e1, st)
adamc@589 1017 val (e2, st) = jsE inner (e2, st)
adamc@589 1018 in
adamc@589 1019 (strcat [str "sb(",
adamc@589 1020 e1,
adamc@589 1021 str ",",
adamc@589 1022 e2,
adamc@589 1023 str ")"],
adamc@589 1024 st)
adamc@589 1025 end
adamc@589 1026 | ESignalSource e =>
adamc@589 1027 let
adamc@589 1028 val (e, st) = jsE inner (e, st)
adamc@589 1029 in
adamc@589 1030 (strcat [str "ss(",
adamc@589 1031 e,
adamc@589 1032 str ")"],
adamc@589 1033 st)
adamc@572 1034 end
adamc@608 1035
adamc@736 1036 | EServerCall (e, ek, t, eff) =>
adamc@609 1037 let
adamc@614 1038 val (e, st) = jsE inner (e, st)
adamc@609 1039 val (ek, st) = jsE inner (ek, st)
adamc@613 1040 val (unurl, st) = unurlifyExp loc (t, st)
adamc@609 1041 in
adamc@764 1042 (strcat [str ("rc(cat(\"" ^ Settings.getUrlPrefix () ^ "\","),
adamc@614 1043 e,
adamc@703 1044 str ("), function(s){var t=s.split(\"/\");var i=0;return "
adamc@613 1045 ^ unurl ^ "},"),
adamc@609 1046 ek,
adamc@736 1047 str (","
adamc@736 1048 ^ (case eff of
adamc@736 1049 ReadCookieWrite => "true"
adamc@736 1050 | _ => "false")
adamc@736 1051 ^ ")")],
adamc@609 1052 st)
adamc@609 1053 end
adamc@670 1054
adamc@670 1055 | ERecv (e, ek, t) =>
adamc@670 1056 let
adamc@670 1057 val (e, st) = jsE inner (e, st)
adamc@670 1058 val (ek, st) = jsE inner (ek, st)
adamc@670 1059 val (unurl, st) = unurlifyExp loc (t, st)
adamc@670 1060 in
adamc@670 1061 (strcat [str "rv(",
adamc@670 1062 e,
adamc@670 1063 str (", function(s){var t=s.split(\"/\");var i=0;return "
adamc@670 1064 ^ unurl ^ "},"),
adamc@670 1065 ek,
adamc@670 1066 str ")"],
adamc@670 1067 st)
adamc@670 1068 end
adamc@695 1069
adamc@695 1070 | ESleep (e, ek) =>
adamc@695 1071 let
adamc@695 1072 val (e, st) = jsE inner (e, st)
adamc@695 1073 val (ek, st) = jsE inner (ek, st)
adamc@695 1074 in
adamc@695 1075 (strcat [str "window.setTimeout(",
adamc@695 1076 ek,
adamc@695 1077 str ", ",
adamc@695 1078 e,
adamc@695 1079 str ")"],
adamc@695 1080 st)
adamc@695 1081 end
adamc@567 1082 end
adamc@589 1083 in
adamc@589 1084 jsE
adamc@589 1085 end
adamc@567 1086
adamc@567 1087
adamc@815 1088 fun patBinds ((p, _), env) =
adamc@815 1089 case p of
adamc@815 1090 PWild => env
adamc@815 1091 | PVar (_, t) => t :: env
adamc@815 1092 | PPrim _ => env
adamc@815 1093 | PCon (_, _, NONE) => env
adamc@815 1094 | PCon (_, _, SOME p) => patBinds (p, env)
adamc@815 1095 | PRecord xpts => foldl (fn ((_, p, _), env) => patBinds (p, env)) env xpts
adamc@815 1096 | PNone _ => env
adamc@815 1097 | PSome (_, p) => patBinds (p, env)
adamc@815 1098
adamc@815 1099 fun exp outer (e as (_, loc), st) =
adamc@815 1100 ((*Print.preface ("exp", MonoPrint.p_exp MonoEnv.empty e);*)
adamc@815 1101 case #1 e of
adamc@847 1102 EPrim p =>
adamc@847 1103 (case p of
adamc@847 1104 Prim.String s => if inString {needle = "<script", haystack = s} then
adamc@847 1105 foundJavaScript := true
adamc@847 1106 else
adamc@847 1107 ()
adamc@847 1108 | _ => ();
adamc@847 1109 (e, st))
adamc@815 1110 | ERel _ => (e, st)
adamc@815 1111 | ENamed _ => (e, st)
adamc@815 1112 | ECon (_, _, NONE) => (e, st)
adamc@815 1113 | ECon (dk, pc, SOME e) =>
adamc@815 1114 let
adamc@815 1115 val (e, st) = exp outer (e, st)
adamc@815 1116 in
adamc@815 1117 ((ECon (dk, pc, SOME e), loc), st)
adamc@815 1118 end
adamc@815 1119 | ENone _ => (e, st)
adamc@815 1120 | ESome (t, e) =>
adamc@815 1121 let
adamc@815 1122 val (e, st) = exp outer (e, st)
adamc@815 1123 in
adamc@815 1124 ((ESome (t, e), loc), st)
adamc@815 1125 end
adamc@815 1126 | EFfi _ => (e, st)
adamc@815 1127 | EFfiApp (m, x, es) =>
adamc@815 1128 let
adamc@815 1129 val (es, st) = ListUtil.foldlMap (exp outer) st es
adamc@815 1130 in
adamc@815 1131 ((EFfiApp (m, x, es), loc), st)
adamc@815 1132 end
adamc@815 1133 | EApp (e1, e2) =>
adamc@815 1134 let
adamc@815 1135 val (e1, st) = exp outer (e1, st)
adamc@815 1136 val (e2, st) = exp outer (e2, st)
adamc@815 1137 in
adamc@815 1138 ((EApp (e1, e2), loc), st)
adamc@815 1139 end
adamc@815 1140 | EAbs (x, dom, ran, e) =>
adamc@815 1141 let
adamc@815 1142 val (e, st) = exp (dom :: outer) (e, st)
adamc@815 1143 in
adamc@815 1144 ((EAbs (x, dom, ran, e), loc), st)
adamc@815 1145 end
adamc@815 1146
adamc@815 1147 | EUnop (s, e) =>
adamc@815 1148 let
adamc@815 1149 val (e, st) = exp outer (e, st)
adamc@815 1150 in
adamc@815 1151 ((EUnop (s, e), loc), st)
adamc@815 1152 end
adamc@815 1153 | EBinop (s, e1, e2) =>
adamc@815 1154 let
adamc@815 1155 val (e1, st) = exp outer (e1, st)
adamc@815 1156 val (e2, st) = exp outer (e2, st)
adamc@815 1157 in
adamc@815 1158 ((EBinop (s, e1, e2), loc), st)
adamc@815 1159 end
adamc@815 1160
adamc@815 1161 | ERecord xets =>
adamc@815 1162 let
adamc@815 1163 val (xets, st) = ListUtil.foldlMap (fn ((x, e, t), st) =>
adamc@815 1164 let
adamc@815 1165 val (e, st) = exp outer (e, st)
adamc@815 1166 in
adamc@815 1167 ((x, e, t), st)
adamc@815 1168 end) st xets
adamc@815 1169 in
adamc@815 1170 ((ERecord xets, loc), st)
adamc@815 1171 end
adamc@815 1172 | EField (e, s) =>
adamc@815 1173 let
adamc@815 1174 val (e, st) = exp outer (e, st)
adamc@815 1175 in
adamc@815 1176 ((EField (e, s), loc), st)
adamc@815 1177 end
adamc@815 1178
adamc@815 1179 | ECase (e, pes, ts) =>
adamc@815 1180 let
adamc@815 1181 val (e, st) = exp outer (e, st)
adamc@815 1182 val (pes, st) = ListUtil.foldlMap (fn ((p, e), st) =>
adamc@815 1183 let
adamc@815 1184 val (e, st) = exp (patBinds (p, outer)) (e, st)
adamc@815 1185 in
adamc@815 1186 ((p, e), st)
adamc@815 1187 end) st pes
adamc@815 1188 in
adamc@815 1189 ((ECase (e, pes, ts), loc), st)
adamc@815 1190 end
adamc@815 1191
adamc@815 1192 | EStrcat (e1, e2) =>
adamc@815 1193 let
adamc@815 1194 val (e1, st) = exp outer (e1, st)
adamc@815 1195 val (e2, st) = exp outer (e2, st)
adamc@815 1196 in
adamc@815 1197 ((EStrcat (e1, e2), loc), st)
adamc@815 1198 end
adamc@815 1199
adamc@815 1200 | EError (e, t) =>
adamc@815 1201 let
adamc@815 1202 val (e, st) = exp outer (e, st)
adamc@815 1203 in
adamc@815 1204 ((EError (e, t), loc), st)
adamc@815 1205 end
adamc@815 1206 | EReturnBlob {blob, mimeType, t} =>
adamc@815 1207 let
adamc@815 1208 val (blob, st) = exp outer (blob, st)
adamc@815 1209 val (mimeType, st) = exp outer (mimeType, st)
adamc@815 1210 in
adamc@815 1211 ((EReturnBlob {blob = blob, mimeType = mimeType, t = t}, loc), st)
adamc@815 1212 end
adamc@815 1213
adamc@815 1214 | EWrite e =>
adamc@815 1215 let
adamc@815 1216 val (e, st) = exp outer (e, st)
adamc@815 1217 in
adamc@815 1218 ((EWrite e, loc), st)
adamc@815 1219 end
adamc@815 1220 | ESeq (e1, e2) =>
adamc@815 1221 let
adamc@815 1222 val (e1, st) = exp outer (e1, st)
adamc@815 1223 val (e2, st) = exp outer (e2, st)
adamc@815 1224 in
adamc@815 1225 ((ESeq (e1, e2), loc), st)
adamc@815 1226 end
adamc@815 1227 | ELet (x, t, e1, e2) =>
adamc@815 1228 let
adamc@815 1229 val (e1, st) = exp outer (e1, st)
adamc@815 1230 val (e2, st) = exp (t :: outer) (e2, st)
adamc@815 1231 in
adamc@815 1232 ((ELet (x, t, e1, e2), loc), st)
adamc@815 1233 end
adamc@815 1234
adamc@815 1235 | EClosure (n, es) =>
adamc@815 1236 let
adamc@815 1237 val (es, st) = ListUtil.foldlMap (exp outer) st es
adamc@815 1238 in
adamc@815 1239 ((EClosure (n, es), loc), st)
adamc@815 1240 end
adamc@815 1241
adamc@815 1242 | EQuery {exps, tables, state, query, body, initial} =>
adamc@815 1243 let
adamc@815 1244 val (query, st) = exp outer (query, st)
adamc@815 1245 val (body, st) = exp outer (body, st)
adamc@815 1246 val (initial, st) = exp outer (initial, st)
adamc@815 1247 in
adamc@815 1248 ((EQuery {exps = exps, tables = tables, state = state,
adamc@815 1249 query = query, body = body, initial = initial}, loc), st)
adamc@815 1250 end
adamc@815 1251 | EDml e =>
adamc@815 1252 let
adamc@815 1253 val (e, st) = exp outer (e, st)
adamc@815 1254 in
adamc@815 1255 ((EDml e, loc), st)
adamc@815 1256 end
adamc@815 1257 | ENextval e =>
adamc@815 1258 let
adamc@815 1259 val (e, st) = exp outer (e, st)
adamc@815 1260 in
adamc@815 1261 ((ENextval e, loc), st)
adamc@815 1262 end
adamc@815 1263
adamc@815 1264 | EUnurlify (e, t) =>
adamc@815 1265 let
adamc@815 1266 val (e, st) = exp outer (e, st)
adamc@815 1267 in
adamc@815 1268 ((EUnurlify (e, t), loc), st)
adamc@815 1269 end
adamc@815 1270
adamc@815 1271 | EJavaScript (m, e') =>
adamc@815 1272 (let
adamc@815 1273 val len = length outer
adamc@815 1274 fun str s = (EPrim (Prim.String s), #2 e')
adamc@815 1275
adamc@815 1276 val locals = List.tabulate
adamc@815 1277 (varDepth e',
adamc@815 1278 fn i => str ("var _" ^ Int.toString (len + i) ^ ";"))
adamc@815 1279
adamc@815 1280 val (e', st) = jsExp m outer 0 (e', st)
adamc@815 1281
adamc@815 1282 val e' =
adamc@815 1283 case locals of
adamc@815 1284 [] => e'
adamc@815 1285 | _ =>
adamc@815 1286 strcat (#2 e') (str "(function(){"
adamc@815 1287 :: locals
adamc@815 1288 @ [str "return ",
adamc@815 1289 e',
adamc@815 1290 str "}())"])
adamc@815 1291 in
adamc@815 1292 (e', st)
adamc@815 1293 end handle CantEmbed _ => (e, st))
adamc@815 1294
adamc@815 1295 | ESignalReturn e =>
adamc@815 1296 let
adamc@815 1297 val (e, st) = exp outer (e, st)
adamc@815 1298 in
adamc@815 1299 ((ESignalReturn e, loc), st)
adamc@815 1300 end
adamc@815 1301 | ESignalBind (e1, e2) =>
adamc@815 1302 let
adamc@815 1303 val (e1, st) = exp outer (e1, st)
adamc@815 1304 val (e2, st) = exp outer (e2, st)
adamc@815 1305 in
adamc@815 1306 ((ESignalBind (e1, e2), loc), st)
adamc@815 1307 end
adamc@815 1308 | ESignalSource e =>
adamc@815 1309 let
adamc@815 1310 val (e, st) = exp outer (e, st)
adamc@815 1311 in
adamc@815 1312 ((ESignalSource e, loc), st)
adamc@815 1313 end
adamc@815 1314
adamc@815 1315 | EServerCall (e1, e2, t, ef) =>
adamc@815 1316 let
adamc@815 1317 val (e1, st) = exp outer (e1, st)
adamc@815 1318 val (e2, st) = exp outer (e2, st)
adamc@815 1319 in
adamc@815 1320 ((EServerCall (e1, e2, t, ef), loc), st)
adamc@815 1321 end
adamc@815 1322 | ERecv (e1, e2, t) =>
adamc@815 1323 let
adamc@815 1324 val (e1, st) = exp outer (e1, st)
adamc@815 1325 val (e2, st) = exp outer (e2, st)
adamc@815 1326 in
adamc@815 1327 ((ERecv (e1, e2, t), loc), st)
adamc@815 1328 end
adamc@815 1329 | ESleep (e1, e2) =>
adamc@815 1330 let
adamc@815 1331 val (e1, st) = exp outer (e1, st)
adamc@815 1332 val (e2, st) = exp outer (e2, st)
adamc@815 1333 in
adamc@815 1334 ((ESleep (e1, e2), loc), st)
adamc@815 1335 end)
adamc@815 1336
adamc@815 1337 fun decl (d as (_, loc), st) =
adamc@815 1338 case #1 d of
adamc@815 1339 DVal (x, n, t, e, s) =>
adamc@815 1340 let
adamc@815 1341 val (e, st) = exp [] (e, st)
adamc@815 1342 in
adamc@815 1343 ((DVal (x, n, t, e, s), loc), st)
adamc@815 1344 end
adamc@815 1345 | DValRec vis =>
adamc@815 1346 let
adamc@815 1347 val (vis, st) = ListUtil.foldlMap (fn ((x, n, t, e, s), st) =>
adamc@815 1348 let
adamc@815 1349 val (e, st) = exp [] (e, st)
adamc@815 1350 in
adamc@815 1351 ((x, n, t, e, s), st)
adamc@815 1352 end) st vis
adamc@815 1353 in
adamc@815 1354 ((DValRec vis, loc), st)
adamc@815 1355 end
adamc@815 1356 | _ => (d, st)
adamc@567 1357
adamc@567 1358 fun doDecl (d, st) =
adamc@567 1359 let
adamc@815 1360 (*val () = Print.preface ("doDecl", MonoPrint.p_decl MonoEnv.empty d)*)
adamc@815 1361 val (d, st) = decl (d, st)
adamc@840 1362
adamc@840 1363 val ds =
adamc@840 1364 case #decls st of
adamc@840 1365 [] => [d]
adamc@840 1366 | vis => [(DValRec vis, #2 d), d]
adamc@567 1367 in
adamc@840 1368 (ds,
adamc@567 1369 {decls = [],
adamc@589 1370 script = #script st,
adamc@595 1371 included = #included st,
adamc@595 1372 injectors = #injectors st,
adamc@800 1373 listInjectors = #listInjectors st,
adamc@638 1374 decoders = #decoders st,
adamc@595 1375 maxName = #maxName st})
adamc@567 1376 end
adamc@567 1377
adamc@567 1378 val (ds, st) = ListUtil.foldlMapConcat doDecl
adamc@567 1379 {decls = [],
adamc@589 1380 script = [],
adamc@595 1381 included = IS.empty,
adamc@595 1382 injectors = IM.empty,
adamc@800 1383 listInjectors = TM.empty,
adamc@638 1384 decoders = IM.empty,
adamc@595 1385 maxName = U.File.maxName file + 1}
adamc@815 1386 file
adamc@569 1387
adamc@569 1388 val inf = TextIO.openIn (OS.Path.joinDirFile {dir = Config.libJs, file = "urweb.js"})
adamc@569 1389 fun lines acc =
adamc@569 1390 case TextIO.inputLine inf of
adamc@569 1391 NONE => String.concat (rev acc)
adamc@569 1392 | SOME line => lines (line :: acc)
adamc@569 1393 val lines = lines []
adamc@794 1394
adamc@794 1395 val script =
adamc@794 1396 if !foundJavaScript then
adamc@794 1397 lines ^ String.concat (rev (#script st))
adamc@794 1398 else
adamc@794 1399 ""
adamc@567 1400 in
adamc@569 1401 TextIO.closeIn inf;
adamc@794 1402 (DJavaScript script, ErrorMsg.dummySpan) :: ds
adamc@567 1403 end
adamc@567 1404
adamc@567 1405 end