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annotate src/jscomp.sml @ 815:493f44759879

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Redo Jscomp
author Adam Chlipala <adamc@hcoop.net>
date Sun, 17 May 2009 18:41:43 -0400
parents 7b380e2b9e68
children 395a5d450cc0
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@567 45 decls : decl 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@589 174 fun process file =
adamc@567 175 let
adamc@596 176 val (someTs, nameds) =
adamc@596 177 foldl (fn ((DVal (_, n, t, e, _), _), (someTs, nameds)) => (someTs, IM.insert (nameds, n, e))
adamc@596 178 | ((DValRec vis, _), (someTs, nameds)) =>
adamc@596 179 (someTs, foldl (fn ((_, n, _, e, _), nameds) => IM.insert (nameds, n, e))
adamc@596 180 nameds vis)
adamc@808 181 | ((DDatatype dts, _), state as (someTs, nameds)) =>
adamc@808 182 (foldl (fn ((_, _, cs), someTs) =>
adamc@808 183 if ElabUtil.classifyDatatype cs = Option then
adamc@808 184 foldl (fn ((_, n, SOME t), someTs) => IM.insert (someTs, n, t)
adamc@808 185 | (_, someTs) => someTs) someTs cs
adamc@808 186 else
adamc@808 187 someTs) someTs dts,
adamc@808 188 nameds)
adamc@595 189 | (_, state) => state)
adamc@596 190 (IM.empty, IM.empty) file
adamc@567 191
adamc@590 192 fun str loc s = (EPrim (Prim.String s), loc)
adamc@590 193
adamc@594 194 fun isNullable (t, _) =
adamc@594 195 case t of
adamc@594 196 TOption _ => true
adamc@594 197 | TRecord [] => true
adamc@594 198 | _ => false
adamc@594 199
adamc@593 200 fun quoteExp loc (t : typ) (e, st) =
adamc@590 201 case #1 t of
adamc@593 202 TSource => (strcat loc [str loc "s",
adamc@593 203 (EFfiApp ("Basis", "htmlifyInt", [e]), loc)], st)
adamc@590 204
adamc@593 205 | TRecord [] => (str loc "null", st)
adamc@593 206 | TRecord [(x, t)] =>
adamc@593 207 let
adamc@593 208 val (e, st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 209 in
adamc@593 210 (strcat loc [str loc ("{_" ^ x ^ ":"),
adamc@593 211 e,
adamc@593 212 str loc "}"], st)
adamc@593 213 end
adamc@593 214 | TRecord ((x, t) :: xts) =>
adamc@593 215 let
adamc@593 216 val (e', st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 217 val (es, st) = ListUtil.foldlMap
adamc@593 218 (fn ((x, t), st) =>
adamc@593 219 let
adamc@593 220 val (e, st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 221 in
adamc@593 222 (strcat loc [str loc (",_" ^ x ^ ":"), e], st)
adamc@593 223 end)
adamc@593 224 st xts
adamc@593 225 in
adamc@593 226 (strcat loc (str loc ("{_" ^ x ^ ":")
adamc@593 227 :: e'
adamc@593 228 :: es
adamc@593 229 @ [str loc "}"]), st)
adamc@593 230 end
adamc@590 231
adamc@593 232 | TFfi ("Basis", "string") => ((EFfiApp ("Basis", "jsifyString", [e]), loc), st)
adamc@593 233 | TFfi ("Basis", "int") => ((EFfiApp ("Basis", "htmlifyInt", [e]), loc), st)
adamc@593 234 | TFfi ("Basis", "float") => ((EFfiApp ("Basis", "htmlifyFloat", [e]), loc), st)
adamc@682 235 | TFfi ("Basis", "channel") => ((EFfiApp ("Basis", "jsifyChannel", [e]), loc), st)
adamc@593 236
adamc@593 237 | TFfi ("Basis", "bool") => ((ECase (e,
adamc@593 238 [((PCon (Enum, PConFfi {mod = "Basis",
adamc@593 239 datatyp = "bool",
adamc@593 240 con = "True",
adamc@593 241 arg = NONE}, NONE), loc),
adamc@593 242 str loc "true"),
adamc@593 243 ((PCon (Enum, PConFfi {mod = "Basis",
adamc@593 244 datatyp = "bool",
adamc@593 245 con = "False",
adamc@593 246 arg = NONE}, NONE), loc),
adamc@593 247 str loc "false")],
adamc@593 248 {disc = (TFfi ("Basis", "bool"), loc),
adamc@593 249 result = (TFfi ("Basis", "string"), loc)}), loc),
adamc@593 250 st)
adamc@592 251
adamc@594 252 | TOption t =>
adamc@594 253 let
adamc@594 254 val (e', st) = quoteExp loc t ((ERel 0, loc), st)
adamc@594 255 in
adamc@813 256 (case #1 e' of
adamc@813 257 EPrim (Prim.String "ERROR") => raise Fail "UHOH"
adamc@813 258 | _ =>
adamc@813 259 (ECase (e,
adamc@813 260 [((PNone t, loc),
adamc@813 261 str loc "null"),
adamc@813 262 ((PSome (t, (PVar ("x", t), loc)), loc),
adamc@813 263 if isNullable t then
adamc@813 264 strcat loc [str loc "{v:", e', str loc "}"]
adamc@813 265 else
adamc@813 266 e')],
adamc@813 267 {disc = (TOption t, loc),
adamc@813 268 result = (TFfi ("Basis", "string"), loc)}), loc),
adamc@594 269 st)
adamc@594 270 end
adamc@594 271
adamc@800 272 | TList t' =>
adamc@800 273 (case TM.find (#listInjectors st, t') of
adamc@800 274 SOME n' => ((EApp ((ENamed n', loc), e), loc), st)
adamc@800 275 | NONE =>
adamc@800 276 let
adamc@800 277 val rt = (TRecord [("1", t'), ("2", t)], loc)
adamc@800 278
adamc@800 279 val n' = #maxName st
adamc@800 280 val st = {decls = #decls st,
adamc@800 281 script = #script st,
adamc@800 282 included = #included st,
adamc@800 283 injectors = #injectors st,
adamc@800 284 listInjectors = TM.insert (#listInjectors st, t', n'),
adamc@800 285 decoders = #decoders st,
adamc@800 286 maxName = n' + 1}
adamc@800 287
adamc@800 288 val s = (TFfi ("Basis", "string"), loc)
adamc@801 289 val (e', st) = quoteExp loc t' ((EField ((ERel 0, loc), "1"), loc), st)
adamc@800 290
adamc@800 291 val body = (ECase ((ERel 0, loc),
adamc@800 292 [((PNone rt, loc),
adamc@800 293 str loc "null"),
adamc@800 294 ((PSome (rt, (PVar ("x", rt), loc)), loc),
adamc@800 295 strcat loc [str loc "{v:{_1:",
adamc@800 296 e',
adamc@800 297 str loc ",_2:",
adamc@800 298 (EApp ((ENamed n', loc),
adamc@800 299 (EField ((ERel 0, loc), "2"), loc)), loc),
adamc@800 300 str loc "}}"])],
adamc@800 301 {disc = t, result = s}), loc)
adamc@800 302 val body = (EAbs ("x", t, s, body), loc)
adamc@800 303
adamc@800 304 val st = {decls = (DValRec [("jsify", n', (TFun (t, s), loc),
adamc@800 305 body, "jsify")], loc) :: #decls st,
adamc@800 306 script = #script st,
adamc@800 307 included = #included st,
adamc@800 308 injectors = #injectors st,
adamc@800 309 listInjectors = #listInjectors st,
adamc@800 310 decoders= #decoders st,
adamc@800 311 maxName = #maxName st}
adamc@800 312
adamc@800 313
adamc@800 314 in
adamc@800 315 ((EApp ((ENamed n', loc), e), loc), st)
adamc@800 316 end)
adamc@800 317
adamc@595 318 | TDatatype (n, ref (dk, cs)) =>
adamc@595 319 (case IM.find (#injectors st, n) of
adamc@595 320 SOME n' => ((EApp ((ENamed n', loc), e), loc), st)
adamc@595 321 | NONE =>
adamc@595 322 let
adamc@595 323 val n' = #maxName st
adamc@595 324 val st = {decls = #decls st,
adamc@595 325 script = #script st,
adamc@595 326 included = #included st,
adamc@595 327 injectors = IM.insert (#injectors st, n, n'),
adamc@800 328 listInjectors = #listInjectors st,
adamc@638 329 decoders = #decoders st,
adamc@595 330 maxName = n' + 1}
adamc@595 331
adamc@595 332 val (pes, st) = ListUtil.foldlMap
adamc@595 333 (fn ((_, cn, NONE), st) =>
adamc@595 334 (((PCon (dk, PConVar cn, NONE), loc),
adamc@596 335 case dk of
adamc@596 336 Option => str loc "null"
adamc@596 337 | _ => str loc (Int.toString cn)),
adamc@595 338 st)
adamc@595 339 | ((_, cn, SOME t), st) =>
adamc@595 340 let
adamc@595 341 val (e, st) = quoteExp loc t ((ERel 0, loc), st)
adamc@595 342 in
adamc@595 343 (((PCon (dk, PConVar cn, SOME (PVar ("x", t), loc)), loc),
adamc@596 344 case dk of
adamc@596 345 Option =>
adamc@596 346 if isNullable t then
adamc@638 347 strcat loc [str loc "{v:",
adamc@596 348 e,
adamc@596 349 str loc "}"]
adamc@596 350 else
adamc@596 351 e
adamc@597 352 | _ => strcat loc [str loc ("{n:" ^ Int.toString cn
adamc@597 353 ^ ",v:"),
adamc@597 354 e,
adamc@597 355 str loc "}"]),
adamc@595 356 st)
adamc@595 357 end)
adamc@595 358 st cs
adamc@595 359
adamc@595 360 val s = (TFfi ("Basis", "string"), loc)
adamc@595 361 val body = (ECase ((ERel 0, loc), pes,
adamc@595 362 {disc = t, result = s}), loc)
adamc@595 363 val body = (EAbs ("x", t, s, body), loc)
adamc@595 364
adamc@595 365 val st = {decls = (DValRec [("jsify", n', (TFun (t, s), loc),
adamc@595 366 body, "jsify")], loc) :: #decls st,
adamc@595 367 script = #script st,
adamc@595 368 included = #included st,
adamc@595 369 injectors = #injectors st,
adamc@800 370 listInjectors = #listInjectors st,
adamc@638 371 decoders= #decoders st,
adamc@595 372 maxName = #maxName st}
adamc@595 373 in
adamc@595 374 ((EApp ((ENamed n', loc), e), loc), st)
adamc@595 375 end)
adamc@595 376
adamc@815 377 | _ => raise CantEmbed t
adamc@815 378 (*(EM.errorAt loc "Don't know how to embed type in JavaScript";
adamc@590 379 Print.prefaces "Can't embed" [("t", MonoPrint.p_typ MonoEnv.empty t)];
adamc@815 380 (str loc "ERROR", st))*)
adamc@590 381
adamc@613 382 fun unurlifyExp loc (t : typ, st) =
adamc@613 383 case #1 t of
adamc@613 384 TRecord [] => ("null", st)
adamc@613 385 | TRecord [(x, t)] =>
adamc@613 386 let
adamc@613 387 val (e, st) = unurlifyExp loc (t, st)
adamc@613 388 in
adamc@613 389 ("{_" ^ x ^ ":" ^ e ^ "}",
adamc@613 390 st)
adamc@613 391 end
adamc@613 392 | TRecord ((x, t) :: xts) =>
adamc@613 393 let
adamc@613 394 val (e', st) = unurlifyExp loc (t, st)
adamc@613 395 val (es, st) = ListUtil.foldlMap
adamc@638 396 (fn ((x, t), st) =>
adamc@638 397 let
adamc@638 398 val (e, st) = unurlifyExp loc (t, st)
adamc@638 399 in
adamc@638 400 (",_" ^ x ^ ":" ^ e, st)
adamc@638 401 end)
adamc@638 402 st xts
adamc@613 403 in
adamc@613 404 (String.concat ("{_"
adamc@613 405 :: x
adamc@613 406 :: ":"
adamc@613 407 :: e'
adamc@613 408 :: es
adamc@613 409 @ ["}"]), st)
adamc@613 410 end
adamc@613 411
adamc@679 412 | TFfi ("Basis", "string") => ("uu(t[i++])", st)
adamc@613 413 | TFfi ("Basis", "int") => ("parseInt(t[i++])", st)
adamc@613 414 | TFfi ("Basis", "float") => ("parseFloat(t[i++])", st)
adamc@682 415 | TFfi ("Basis", "channel") => ("(t[i++].length > 0 ? parseInt(t[i]) : null)", st)
adamc@613 416
adamc@613 417 | TFfi ("Basis", "bool") => ("t[i++] == \"True\"", st)
adamc@613 418
adamc@638 419 | TOption t =>
adamc@613 420 let
adamc@638 421 val (e, st) = unurlifyExp loc (t, st)
adamc@638 422 val e = if isNullable t then
adamc@638 423 "{v:" ^ e ^ "}"
adamc@638 424 else
adamc@638 425 e
adamc@613 426 in
adamc@703 427 ("(t[i++]==\"Some\"?" ^ e ^ ":null)", st)
adamc@638 428 end
adamc@613 429
adamc@638 430 | TDatatype (n, ref (dk, cs)) =>
adamc@638 431 (case IM.find (#decoders st, n) of
adamc@638 432 SOME n' => ("(tmp=_n" ^ Int.toString n' ^ "(t,i),i=tmp._1,tmp._2)", st)
adamc@613 433 | NONE =>
adamc@613 434 let
adamc@613 435 val n' = #maxName st
adamc@613 436 val st = {decls = #decls st,
adamc@613 437 script = #script st,
adamc@613 438 included = #included st,
adamc@638 439 injectors = #injectors st,
adamc@800 440 listInjectors = #listInjectors st,
adamc@638 441 decoders = IM.insert (#decoders st, n, n'),
adamc@613 442 maxName = n' + 1}
adamc@613 443
adamc@638 444 val (e, st) = foldl (fn ((x, cn, NONE), (e, st)) =>
adamc@638 445 ("x==\"" ^ x ^ "\"?"
adamc@638 446 ^ (case dk of
adamc@638 447 Option => "null"
adamc@638 448 | _ => Int.toString cn)
adamc@638 449 ^ ":" ^ e,
adamc@613 450 st)
adamc@638 451 | ((x, cn, SOME t), (e, st)) =>
adamc@613 452 let
adamc@638 453 val (e', st) = unurlifyExp loc (t, st)
adamc@613 454 in
adamc@638 455 ("x==\"" ^ x ^ "\"?"
adamc@638 456 ^ (case dk of
adamc@638 457 Option =>
adamc@638 458 if isNullable t then
adamc@638 459 "{v:" ^ e' ^ "}"
adamc@638 460 else
adamc@638 461 e'
adamc@638 462 | _ => "{n:" ^ Int.toString cn ^ ",v:" ^ e' ^ "}")
adamc@638 463 ^ ":" ^ e,
adamc@613 464 st)
adamc@613 465 end)
adamc@810 466 ("pf(\"" ^ ErrorMsg.spanToString loc ^ "\")", st) cs
adamc@613 467
adamc@638 468 val body = "function _n" ^ Int.toString n' ^ "(t,i){var x=t[i++];var r="
adamc@638 469 ^ e ^ ";return {_1:i,_2:r}}\n\n"
adamc@613 470
adamc@638 471 val st = {decls = #decls st,
adamc@638 472 script = body :: #script st,
adamc@613 473 included = #included st,
adamc@613 474 injectors = #injectors st,
adamc@800 475 listInjectors = #listInjectors st,
adamc@638 476 decoders = #decoders st,
adamc@613 477 maxName = #maxName st}
adamc@613 478 in
adamc@638 479 ("(tmp=_n" ^ Int.toString n' ^ "(t,i),i=tmp._1,tmp._2)", st)
adamc@638 480 end)
adamc@613 481
adamc@613 482 | _ => (EM.errorAt loc "Don't know how to unurlify type in JavaScript";
adamc@613 483 Print.prefaces "Can't unurlify" [("t", MonoPrint.p_typ MonoEnv.empty t)];
adamc@613 484 ("ERROR", st))
adamc@613 485
adamc@646 486 fun padWith (ch, s, len) =
adamc@646 487 if size s < len then
adamc@646 488 padWith (ch, String.str ch ^ s, len - 1)
adamc@646 489 else
adamc@646 490 s
adamc@646 491
adamc@794 492 val foundJavaScript = ref false
adamc@794 493
adamc@800 494 fun jsExp mode outer =
adamc@567 495 let
adamc@589 496 val len = length outer
adamc@567 497
adamc@589 498 fun jsE inner (e as (_, loc), st) =
adamc@589 499 let
adamc@590 500 val str = str loc
adamc@567 501
adamc@589 502 fun var n = Int.toString (len + inner - n - 1)
adamc@567 503
adamc@589 504 fun patCon pc =
adamc@589 505 case pc of
adamc@589 506 PConVar n => str (Int.toString n)
adamc@589 507 | PConFfi {mod = "Basis", con = "True", ...} => str "true"
adamc@589 508 | PConFfi {mod = "Basis", con = "False", ...} => str "false"
adamc@589 509 | PConFfi {con, ...} => str ("\"_" ^ con ^ "\"")
adamc@567 510
adamc@591 511 fun unsupported s =
adamc@591 512 (EM.errorAt loc (s ^ " in code to be compiled to JavaScript[2]");
adamc@591 513 (str "ERROR", st))
adamc@577 514
adamc@589 515 val strcat = strcat loc
adamc@584 516
adamc@589 517 fun jsPrim p =
adamc@589 518 case p of
adamc@589 519 Prim.String s =>
adamc@589 520 str ("\""
adamc@589 521 ^ String.translate (fn #"'" =>
adamc@589 522 if mode = Attribute then
adamc@589 523 "\\047"
adamc@589 524 else
adamc@589 525 "'"
adamc@589 526 | #"\"" => "\\\""
adamc@589 527 | #"<" =>
adamc@589 528 if mode = Script then
adamc@589 529 "<"
adamc@589 530 else
adamc@589 531 "\\074"
adamc@589 532 | #"\\" => "\\\\"
adamc@646 533 | #"\n" => "\\n"
adamc@646 534 | #"\r" => "\\r"
adamc@646 535 | #"\t" => "\\t"
adamc@646 536 | ch =>
adamc@646 537 if Char.isPrint ch then
adamc@646 538 String.str ch
adamc@646 539 else
adamc@646 540 "\\" ^ padWith (#"0",
adamc@646 541 Int.fmt StringCvt.OCT (ord ch),
adamc@646 542 3)) s
adamc@589 543 ^ "\"")
adamc@589 544 | _ => str (Prim.toString p)
adamc@589 545
adamc@589 546 fun jsPat depth inner (p, _) succ fail =
adamc@589 547 case p of
adamc@589 548 PWild => succ
adamc@589 549 | PVar _ => strcat [str ("(_" ^ Int.toString (len + inner) ^ "=d"
adamc@589 550 ^ Int.toString depth ^ ","),
adamc@589 551 succ,
adamc@589 552 str ")"]
adamc@589 553 | PPrim p => strcat [str ("(d" ^ Int.toString depth ^ "=="),
adamc@589 554 jsPrim p,
adamc@589 555 str "?",
adamc@589 556 succ,
adamc@589 557 str ":",
adamc@589 558 fail,
adamc@589 559 str ")"]
adamc@589 560 | PCon (_, PConFfi {mod = "Basis", con = "True", ...}, NONE) =>
adamc@589 561 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 562 succ,
adamc@589 563 str ":",
adamc@589 564 fail,
adamc@589 565 str ")"]
adamc@589 566 | PCon (_, PConFfi {mod = "Basis", con = "False", ...}, NONE) =>
adamc@589 567 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 568 fail,
adamc@589 569 str ":",
adamc@589 570 succ,
adamc@589 571 str ")"]
adamc@596 572 | PCon (Option, _, NONE) =>
adamc@596 573 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@596 574 fail,
adamc@596 575 str ":",
adamc@596 576 succ,
adamc@596 577 str ")"]
adamc@596 578 | PCon (Option, PConVar n, SOME p) =>
adamc@596 579 (case IM.find (someTs, n) of
adamc@596 580 NONE => raise Fail "Jscomp: Not in someTs"
adamc@596 581 | SOME t =>
adamc@810 582 strcat [str ("(d" ^ Int.toString depth ^ "?(d"
adamc@810 583 ^ Int.toString (depth+1) ^ "=d" ^ Int.toString depth
adamc@596 584 ^ (if isNullable t then
adamc@810 585 ".v,"
adamc@596 586 else
adamc@813 587 "")
adamc@813 588 ^ ","),
adamc@810 589 jsPat (depth+1) inner p succ fail,
adamc@596 590 str "):",
adamc@596 591 fail,
adamc@596 592 str ")"])
adamc@589 593 | PCon (_, pc, NONE) =>
adamc@589 594 strcat [str ("(d" ^ Int.toString depth ^ "=="),
adamc@589 595 patCon pc,
adamc@589 596 str "?",
adamc@589 597 succ,
adamc@589 598 str ":",
adamc@589 599 fail,
adamc@589 600 str ")"]
adamc@589 601 | PCon (_, pc, SOME p) =>
adamc@589 602 strcat [str ("(d" ^ Int.toString depth ^ ".n=="),
adamc@589 603 patCon pc,
adamc@810 604 str ("?(d" ^ Int.toString (depth+1) ^ "=d" ^ Int.toString depth ^ ".v,"),
adamc@810 605 jsPat (depth+1) inner p succ fail,
adamc@589 606 str "):",
adamc@589 607 fail,
adamc@589 608 str ")"]
adamc@589 609 | PRecord xps =>
adamc@589 610 let
adamc@589 611 val (_, succ) = foldl
adamc@589 612 (fn ((x, p, _), (inner, succ)) =>
adamc@589 613 (inner + E.patBindsN p,
adamc@589 614 strcat [str ("(d" ^ Int.toString (depth+1) ^ "=d"
adamc@589 615 ^ Int.toString depth ^ "._" ^ x ^ ","),
adamc@589 616 jsPat (depth+1) inner p succ fail,
adamc@589 617 str ")"]))
adamc@589 618 (inner, succ) xps
adamc@589 619 in
adamc@589 620 succ
adamc@589 621 end
adamc@589 622 | PNone _ => strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 623 fail,
adamc@589 624 str ":",
adamc@589 625 succ,
adamc@589 626 str ")"]
adamc@594 627 | PSome (t, p) => strcat (str ("(d" ^ Int.toString depth ^ "?")
adamc@594 628 :: (if isNullable t then
adamc@594 629 [str ("d" ^ Int.toString depth
adamc@594 630 ^ "=d" ^ Int.toString depth ^ ".v")]
adamc@594 631 else
adamc@594 632 [])
adamc@594 633 @ [jsPat depth inner p succ fail,
adamc@594 634 str ":",
adamc@594 635 fail,
adamc@594 636 str ")"])
adamc@589 637
adamc@601 638 val jsifyString = String.translate (fn #"\"" => "\\\""
adamc@601 639 | #"\\" => "\\\\"
adamc@601 640 | ch => String.str ch)
adamc@601 641
adamc@601 642 fun jsifyStringMulti (n, s) =
adamc@601 643 case n of
adamc@601 644 0 => s
adamc@601 645 | _ => jsifyStringMulti (n - 1, jsifyString s)
adamc@601 646
adamc@601 647 fun deStrcat level (all as (e, _)) =
adamc@589 648 case e of
adamc@601 649 EPrim (Prim.String s) => jsifyStringMulti (level, s)
adamc@601 650 | EStrcat (e1, e2) => deStrcat level e1 ^ deStrcat level e2
adamc@601 651 | EFfiApp ("Basis", "jsifyString", [e]) => "\"" ^ deStrcat (level + 1) e ^ "\""
adamc@601 652 | _ => (Print.prefaces "deStrcat" [("e", MonoPrint.p_exp MonoEnv.empty all)];
adamc@601 653 raise Fail "Jscomp: deStrcat")
adamc@590 654
adamc@590 655 val quoteExp = quoteExp loc
adamc@567 656 in
adamc@801 657 (*Print.prefaces "jsE" [("e", MonoPrint.p_exp MonoEnv.empty e),
adamc@801 658 ("inner", Print.PD.string (Int.toString inner))];*)
adamc@590 659
adamc@589 660 case #1 e of
adamc@589 661 EPrim p => (jsPrim p, st)
adamc@589 662 | ERel n =>
adamc@589 663 if n < inner then
adamc@589 664 (str ("_" ^ var n), st)
adamc@589 665 else
adamc@589 666 let
adamc@589 667 val n = n - inner
adamc@813 668 (*val () = Print.prefaces "quote" [("t", MonoPrint.p_typ MonoEnv.empty
adamc@813 669 (List.nth (outer, n)))]*)
adamc@589 670 in
adamc@800 671 quoteExp (List.nth (outer, n)) ((ERel n, loc), st)
adamc@589 672 end
adamc@567 673
adamc@589 674 | ENamed n =>
adamc@589 675 let
adamc@589 676 val st =
adamc@589 677 if IS.member (#included st, n) then
adamc@589 678 st
adamc@589 679 else
adamc@589 680 case IM.find (nameds, n) of
adamc@589 681 NONE => raise Fail "Jscomp: Unbound ENamed"
adamc@589 682 | SOME e =>
adamc@589 683 let
adamc@589 684 val st = {decls = #decls st,
adamc@589 685 script = #script st,
adamc@595 686 included = IS.add (#included st, n),
adamc@595 687 injectors = #injectors st,
adamc@800 688 listInjectors = #listInjectors st,
adamc@638 689 decoders = #decoders st,
adamc@595 690 maxName = #maxName st}
adamc@578 691
adamc@801 692 val old = e
adamc@800 693 val (e, st) = jsExp mode [] 0 (e, st)
adamc@801 694 val new = e
adamc@601 695 val e = deStrcat 0 e
adamc@589 696
adamc@589 697 val sc = "_n" ^ Int.toString n ^ "=" ^ e ^ ";\n"
adamc@589 698 in
adamc@801 699 (*Print.prefaces "jsify'" [("old", MonoPrint.p_exp MonoEnv.empty old),
adamc@801 700 ("new", MonoPrint.p_exp MonoEnv.empty new)];*)
adamc@589 701 {decls = #decls st,
adamc@589 702 script = sc :: #script st,
adamc@595 703 included = #included st,
adamc@595 704 injectors = #injectors st,
adamc@800 705 listInjectors = #listInjectors st,
adamc@638 706 decoders= #decoders st,
adamc@595 707 maxName = #maxName st}
adamc@589 708 end
adamc@589 709 in
adamc@589 710 (str ("_n" ^ Int.toString n), st)
adamc@589 711 end
adamc@589 712
adamc@596 713 | ECon (Option, _, NONE) => (str "null", st)
adamc@596 714 | ECon (Option, PConVar n, SOME e) =>
adamc@596 715 let
adamc@596 716 val (e, st) = jsE inner (e, st)
adamc@596 717 in
adamc@596 718 case IM.find (someTs, n) of
adamc@596 719 NONE => raise Fail "Jscomp: Not in someTs [2]"
adamc@596 720 | SOME t =>
adamc@596 721 (if isNullable t then
adamc@596 722 strcat [str "{v:",
adamc@596 723 e,
adamc@596 724 str "}"]
adamc@596 725 else
adamc@596 726 e, st)
adamc@596 727 end
adamc@596 728
adamc@589 729 | ECon (_, pc, NONE) => (patCon pc, st)
adamc@589 730 | ECon (_, pc, SOME e) =>
adamc@589 731 let
adamc@589 732 val (s, st) = jsE inner (e, st)
adamc@589 733 in
adamc@589 734 (strcat [str "{n:",
adamc@589 735 patCon pc,
adamc@589 736 str ",v:",
adamc@589 737 s,
adamc@589 738 str "}"], st)
adamc@589 739 end
adamc@596 740
adamc@589 741 | ENone _ => (str "null", st)
adamc@589 742 | ESome (t, e) =>
adamc@572 743 let
adamc@572 744 val (e, st) = jsE inner (e, st)
adamc@572 745 in
adamc@589 746 (if isNullable t then
adamc@589 747 strcat [str "{v:", e, str "}"]
adamc@589 748 else
adamc@589 749 e, st)
adamc@589 750 end
adamc@589 751
adamc@589 752 | EFfi k =>
adamc@589 753 let
adamc@765 754 val name = case Settings.jsFunc k of
adamc@589 755 NONE => (EM.errorAt loc ("Unsupported FFI identifier " ^ #2 k
adamc@589 756 ^ " in JavaScript");
adamc@589 757 "ERROR")
adamc@589 758 | SOME s => s
adamc@589 759 in
adamc@589 760 (str name, st)
adamc@589 761 end
adamc@589 762 | EFfiApp (m, x, args) =>
adamc@589 763 let
adamc@765 764 val name = case Settings.jsFunc (m, x) of
adamc@589 765 NONE => (EM.errorAt loc ("Unsupported FFI function "
adamc@589 766 ^ x ^ " in JavaScript");
adamc@589 767 "ERROR")
adamc@589 768 | SOME s => s
adamc@589 769 in
adamc@589 770 case args of
adamc@589 771 [] => (str (name ^ "()"), st)
adamc@589 772 | [e] =>
adamc@589 773 let
adamc@589 774 val (e, st) = jsE inner (e, st)
adamc@589 775 in
adamc@589 776 (strcat [str (name ^ "("),
adamc@589 777 e,
adamc@589 778 str ")"], st)
adamc@589 779 end
adamc@589 780 | e :: es =>
adamc@589 781 let
adamc@589 782 val (e, st) = jsE inner (e, st)
adamc@589 783 val (es, st) = ListUtil.foldlMapConcat
adamc@589 784 (fn (e, st) =>
adamc@589 785 let
adamc@589 786 val (e, st) = jsE inner (e, st)
adamc@589 787 in
adamc@589 788 ([str ",", e], st)
adamc@589 789 end)
adamc@589 790 st es
adamc@589 791 in
adamc@589 792 (strcat (str (name ^ "(")
adamc@589 793 :: e
adamc@589 794 :: es
adamc@589 795 @ [str ")"]), st)
adamc@589 796 end
adamc@589 797 end
adamc@589 798
adamc@589 799 | EApp (e1, e2) =>
adamc@589 800 let
adamc@589 801 val (e1, st) = jsE inner (e1, st)
adamc@589 802 val (e2, st) = jsE inner (e2, st)
adamc@589 803 in
adamc@589 804 (strcat [e1, str "(", e2, str ")"], st)
adamc@589 805 end
adamc@589 806 | EAbs (_, _, _, e) =>
adamc@589 807 let
adamc@589 808 val locals = List.tabulate
adamc@589 809 (varDepth e,
adamc@589 810 fn i => str ("var _" ^ Int.toString (len + inner + i + 1) ^ ";"))
adamc@589 811 val (e, st) = jsE (inner + 1) (e, st)
adamc@589 812 in
adamc@589 813 (strcat (str ("function(_"
adamc@589 814 ^ Int.toString (len + inner)
adamc@589 815 ^ "){")
adamc@589 816 :: locals
adamc@589 817 @ [str "return ",
adamc@589 818 e,
adamc@589 819 str "}"]),
adamc@589 820 st)
adamc@589 821 end
adamc@589 822
adamc@589 823 | EUnop (s, e) =>
adamc@589 824 let
adamc@589 825 val (e, st) = jsE inner (e, st)
adamc@589 826 in
adamc@589 827 (strcat [str ("(" ^ s),
adamc@572 828 e,
adamc@589 829 str ")"],
adamc@589 830 st)
adamc@589 831 end
adamc@589 832 | EBinop (s, e1, e2) =>
adamc@589 833 let
adamc@729 834 val s =
adamc@729 835 case s of
adamc@729 836 "!strcmp" => "=="
adamc@729 837 | _ => s
adamc@729 838
adamc@589 839 val (e1, st) = jsE inner (e1, st)
adamc@589 840 val (e2, st) = jsE inner (e2, st)
adamc@589 841 in
adamc@589 842 (strcat [str "(",
adamc@589 843 e1,
adamc@589 844 str s,
adamc@589 845 e2,
adamc@589 846 str ")"],
adamc@589 847 st)
adamc@589 848 end
adamc@589 849
adamc@589 850 | ERecord [] => (str "null", st)
adamc@589 851 | ERecord [(x, e, _)] =>
adamc@589 852 let
adamc@589 853 val (e, st) = jsE inner (e, st)
adamc@589 854 in
adamc@589 855 (strcat [str "{_x:", e, str "}"], st)
adamc@589 856 end
adamc@589 857 | ERecord ((x, e, _) :: xes) =>
adamc@589 858 let
adamc@589 859 val (e, st) = jsE inner (e, st)
adamc@589 860
adamc@589 861 val (es, st) =
adamc@589 862 foldr (fn ((x, e, _), (es, st)) =>
adamc@589 863 let
adamc@589 864 val (e, st) = jsE inner (e, st)
adamc@589 865 in
adamc@589 866 (str (",_" ^ x ^ ":")
adamc@589 867 :: e
adamc@589 868 :: es,
adamc@589 869 st)
adamc@589 870 end)
adamc@589 871 ([str "}"], st) xes
adamc@589 872 in
adamc@589 873 (strcat (str ("{_" ^ x ^ ":")
adamc@589 874 :: e
adamc@589 875 :: es),
adamc@589 876 st)
adamc@589 877 end
adamc@589 878 | EField (e, x) =>
adamc@589 879 let
adamc@589 880 val (e, st) = jsE inner (e, st)
adamc@589 881 in
adamc@589 882 (strcat [e,
adamc@589 883 str ("._" ^ x)], st)
adamc@589 884 end
adamc@589 885
adamc@591 886 | ECase (e', pes, {result, ...}) =>
adamc@801 887 let
adamc@801 888 val plen = length pes
adamc@589 889
adamc@801 890 val (cases, st) = ListUtil.foldliMap
adamc@801 891 (fn (i, (p, e), st) =>
adamc@801 892 let
adamc@801 893 val (e, st) = jsE (inner + E.patBindsN p) (e, st)
adamc@801 894 val fail =
adamc@801 895 if i = plen - 1 then
adamc@810 896 str ("pf(\"" ^ ErrorMsg.spanToString loc ^ "\")")
adamc@801 897 else
adamc@801 898 str ("c" ^ Int.toString (i+1) ^ "()")
adamc@801 899 val c = jsPat 0 inner p e fail
adamc@801 900 in
adamc@801 901 (strcat [str ("c" ^ Int.toString i ^ "=function(){return "),
adamc@801 902 c,
adamc@801 903 str "},"],
adamc@801 904 st)
adamc@801 905 end)
adamc@801 906 st pes
adamc@589 907
adamc@801 908 val depth = foldl Int.max 0 (map (fn (p, _) => 1 + patDepth p) pes)
adamc@801 909 val normalDepth = foldl Int.max 0 (map (fn (_, e) => 1 + varDepth e) pes)
adamc@801 910 val (e, st) = jsE inner (e', st)
adamc@801 911
adamc@801 912 val len = inner + len
adamc@801 913 val normalVars = List.tabulate (normalDepth, fn n => "_" ^ Int.toString (n + len))
adamc@801 914 val patVars = List.tabulate (depth, fn n => "d" ^ Int.toString n)
adamc@801 915 in
adamc@801 916 (strcat (str "(function (){ var "
adamc@801 917 :: str (String.concatWith "," (normalVars @ patVars) ^ ";d0=")
adamc@801 918 :: e
adamc@801 919 :: str ";\nreturn ("
adamc@801 920 :: List.revAppend (cases,
adamc@801 921 [str "c0()) } ())"])), st)
adamc@801 922 end
adamc@589 923
adamc@589 924 | EStrcat (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@693 929 (strcat [str "cat(", e1, str ",", e2, str ")"], st)
adamc@589 930 end
adamc@589 931
adamc@589 932 | EError (e, _) =>
adamc@589 933 let
adamc@589 934 val (e, st) = jsE inner (e, st)
adamc@589 935 in
adamc@726 936 (strcat [str "er(", e, str ")"],
adamc@589 937 st)
adamc@589 938 end
adamc@589 939
adamc@589 940 | EWrite e =>
adamc@589 941 let
adamc@589 942 val (e, st) = jsE inner (e, st)
adamc@589 943 in
adamc@589 944 (strcat [str "document.write(",
adamc@589 945 e,
adamc@589 946 str ".v)"], st)
adamc@589 947 end
adamc@589 948
adamc@589 949 | ESeq (e1, e2) =>
adamc@589 950 let
adamc@589 951 val (e1, st) = jsE inner (e1, st)
adamc@589 952 val (e2, st) = jsE inner (e2, st)
adamc@589 953 in
adamc@589 954 (strcat [str "(", e1, str ",", e2, str ")"], st)
adamc@589 955 end
adamc@589 956 | ELet (_, _, e1, e2) =>
adamc@589 957 let
adamc@589 958 val (e1, st) = jsE inner (e1, st)
adamc@589 959 val (e2, st) = jsE (inner + 1) (e2, st)
adamc@589 960 in
adamc@589 961 (strcat [str ("(_" ^ Int.toString (len + inner) ^ "="),
adamc@589 962 e1,
adamc@589 963 str ",",
adamc@589 964 e2,
adamc@572 965 str ")"], st)
adamc@572 966 end
adamc@589 967
adamc@815 968 | EJavaScript (Source _, e) =>
adamc@794 969 (foundJavaScript := true;
adamc@815 970 jsE inner (e, st))
adamc@815 971 | EJavaScript (_, e) =>
adamc@815 972 let
adamc@815 973 val (e, st) = jsE inner (e, st)
adamc@815 974 in
adamc@815 975 foundJavaScript := true;
adamc@815 976 (strcat [str "cs(function(){return ",
adamc@815 977 compact inner e,
adamc@815 978 str "})"],
adamc@815 979 st)
adamc@815 980 end
adamc@590 981
adamc@589 982 | EClosure _ => unsupported "EClosure"
adamc@589 983 | EQuery _ => unsupported "Query"
adamc@589 984 | EDml _ => unsupported "DML"
adamc@589 985 | ENextval _ => unsupported "Nextval"
adamc@589 986 | EUnurlify _ => unsupported "EUnurlify"
adamc@741 987 | EReturnBlob _ => unsupported "EUnurlify"
adamc@590 988
adamc@589 989 | ESignalReturn e =>
adamc@572 990 let
adamc@572 991 val (e, st) = jsE inner (e, st)
adamc@572 992 in
adamc@589 993 (strcat [str "sr(",
adamc@589 994 e,
adamc@589 995 str ")"],
adamc@589 996 st)
adamc@589 997 end
adamc@589 998 | ESignalBind (e1, e2) =>
adamc@589 999 let
adamc@589 1000 val (e1, st) = jsE inner (e1, st)
adamc@589 1001 val (e2, st) = jsE inner (e2, st)
adamc@589 1002 in
adamc@589 1003 (strcat [str "sb(",
adamc@589 1004 e1,
adamc@589 1005 str ",",
adamc@589 1006 e2,
adamc@589 1007 str ")"],
adamc@589 1008 st)
adamc@589 1009 end
adamc@589 1010 | ESignalSource e =>
adamc@589 1011 let
adamc@589 1012 val (e, st) = jsE inner (e, st)
adamc@589 1013 in
adamc@589 1014 (strcat [str "ss(",
adamc@589 1015 e,
adamc@589 1016 str ")"],
adamc@589 1017 st)
adamc@572 1018 end
adamc@608 1019
adamc@736 1020 | EServerCall (e, ek, t, eff) =>
adamc@609 1021 let
adamc@614 1022 val (e, st) = jsE inner (e, st)
adamc@609 1023 val (ek, st) = jsE inner (ek, st)
adamc@613 1024 val (unurl, st) = unurlifyExp loc (t, st)
adamc@609 1025 in
adamc@764 1026 (strcat [str ("rc(cat(\"" ^ Settings.getUrlPrefix () ^ "\","),
adamc@614 1027 e,
adamc@703 1028 str ("), function(s){var t=s.split(\"/\");var i=0;return "
adamc@613 1029 ^ unurl ^ "},"),
adamc@609 1030 ek,
adamc@736 1031 str (","
adamc@736 1032 ^ (case eff of
adamc@736 1033 ReadCookieWrite => "true"
adamc@736 1034 | _ => "false")
adamc@736 1035 ^ ")")],
adamc@609 1036 st)
adamc@609 1037 end
adamc@670 1038
adamc@670 1039 | ERecv (e, ek, t) =>
adamc@670 1040 let
adamc@670 1041 val (e, st) = jsE inner (e, st)
adamc@670 1042 val (ek, st) = jsE inner (ek, st)
adamc@670 1043 val (unurl, st) = unurlifyExp loc (t, st)
adamc@670 1044 in
adamc@670 1045 (strcat [str "rv(",
adamc@670 1046 e,
adamc@670 1047 str (", function(s){var t=s.split(\"/\");var i=0;return "
adamc@670 1048 ^ unurl ^ "},"),
adamc@670 1049 ek,
adamc@670 1050 str ")"],
adamc@670 1051 st)
adamc@670 1052 end
adamc@695 1053
adamc@695 1054 | ESleep (e, ek) =>
adamc@695 1055 let
adamc@695 1056 val (e, st) = jsE inner (e, st)
adamc@695 1057 val (ek, st) = jsE inner (ek, st)
adamc@695 1058 in
adamc@695 1059 (strcat [str "window.setTimeout(",
adamc@695 1060 ek,
adamc@695 1061 str ", ",
adamc@695 1062 e,
adamc@695 1063 str ")"],
adamc@695 1064 st)
adamc@695 1065 end
adamc@567 1066 end
adamc@589 1067 in
adamc@589 1068 jsE
adamc@589 1069 end
adamc@567 1070
adamc@567 1071
adamc@815 1072 fun patBinds ((p, _), env) =
adamc@815 1073 case p of
adamc@815 1074 PWild => env
adamc@815 1075 | PVar (_, t) => t :: env
adamc@815 1076 | PPrim _ => env
adamc@815 1077 | PCon (_, _, NONE) => env
adamc@815 1078 | PCon (_, _, SOME p) => patBinds (p, env)
adamc@815 1079 | PRecord xpts => foldl (fn ((_, p, _), env) => patBinds (p, env)) env xpts
adamc@815 1080 | PNone _ => env
adamc@815 1081 | PSome (_, p) => patBinds (p, env)
adamc@815 1082
adamc@815 1083 fun exp outer (e as (_, loc), st) =
adamc@815 1084 ((*Print.preface ("exp", MonoPrint.p_exp MonoEnv.empty e);*)
adamc@815 1085 case #1 e of
adamc@815 1086 EPrim _ => (e, st)
adamc@815 1087 | ERel _ => (e, st)
adamc@815 1088 | ENamed _ => (e, st)
adamc@815 1089 | ECon (_, _, NONE) => (e, st)
adamc@815 1090 | ECon (dk, pc, SOME e) =>
adamc@815 1091 let
adamc@815 1092 val (e, st) = exp outer (e, st)
adamc@815 1093 in
adamc@815 1094 ((ECon (dk, pc, SOME e), loc), st)
adamc@815 1095 end
adamc@815 1096 | ENone _ => (e, st)
adamc@815 1097 | ESome (t, e) =>
adamc@815 1098 let
adamc@815 1099 val (e, st) = exp outer (e, st)
adamc@815 1100 in
adamc@815 1101 ((ESome (t, e), loc), st)
adamc@815 1102 end
adamc@815 1103 | EFfi _ => (e, st)
adamc@815 1104 | EFfiApp (m, x, es) =>
adamc@815 1105 let
adamc@815 1106 val (es, st) = ListUtil.foldlMap (exp outer) st es
adamc@815 1107 in
adamc@815 1108 ((EFfiApp (m, x, es), loc), st)
adamc@815 1109 end
adamc@815 1110 | EApp (e1, e2) =>
adamc@815 1111 let
adamc@815 1112 val (e1, st) = exp outer (e1, st)
adamc@815 1113 val (e2, st) = exp outer (e2, st)
adamc@815 1114 in
adamc@815 1115 ((EApp (e1, e2), loc), st)
adamc@815 1116 end
adamc@815 1117 | EAbs (x, dom, ran, e) =>
adamc@815 1118 let
adamc@815 1119 val (e, st) = exp (dom :: outer) (e, st)
adamc@815 1120 in
adamc@815 1121 ((EAbs (x, dom, ran, e), loc), st)
adamc@815 1122 end
adamc@815 1123
adamc@815 1124 | EUnop (s, e) =>
adamc@815 1125 let
adamc@815 1126 val (e, st) = exp outer (e, st)
adamc@815 1127 in
adamc@815 1128 ((EUnop (s, e), loc), st)
adamc@815 1129 end
adamc@815 1130 | EBinop (s, e1, e2) =>
adamc@815 1131 let
adamc@815 1132 val (e1, st) = exp outer (e1, st)
adamc@815 1133 val (e2, st) = exp outer (e2, st)
adamc@815 1134 in
adamc@815 1135 ((EBinop (s, e1, e2), loc), st)
adamc@815 1136 end
adamc@815 1137
adamc@815 1138 | ERecord xets =>
adamc@815 1139 let
adamc@815 1140 val (xets, st) = ListUtil.foldlMap (fn ((x, e, t), st) =>
adamc@815 1141 let
adamc@815 1142 val (e, st) = exp outer (e, st)
adamc@815 1143 in
adamc@815 1144 ((x, e, t), st)
adamc@815 1145 end) st xets
adamc@815 1146 in
adamc@815 1147 ((ERecord xets, loc), st)
adamc@815 1148 end
adamc@815 1149 | EField (e, s) =>
adamc@815 1150 let
adamc@815 1151 val (e, st) = exp outer (e, st)
adamc@815 1152 in
adamc@815 1153 ((EField (e, s), loc), st)
adamc@815 1154 end
adamc@815 1155
adamc@815 1156 | ECase (e, pes, ts) =>
adamc@815 1157 let
adamc@815 1158 val (e, st) = exp outer (e, st)
adamc@815 1159 val (pes, st) = ListUtil.foldlMap (fn ((p, e), st) =>
adamc@815 1160 let
adamc@815 1161 val (e, st) = exp (patBinds (p, outer)) (e, st)
adamc@815 1162 in
adamc@815 1163 ((p, e), st)
adamc@815 1164 end) st pes
adamc@815 1165 in
adamc@815 1166 ((ECase (e, pes, ts), loc), st)
adamc@815 1167 end
adamc@815 1168
adamc@815 1169 | EStrcat (e1, e2) =>
adamc@815 1170 let
adamc@815 1171 val (e1, st) = exp outer (e1, st)
adamc@815 1172 val (e2, st) = exp outer (e2, st)
adamc@815 1173 in
adamc@815 1174 ((EStrcat (e1, e2), loc), st)
adamc@815 1175 end
adamc@815 1176
adamc@815 1177 | EError (e, t) =>
adamc@815 1178 let
adamc@815 1179 val (e, st) = exp outer (e, st)
adamc@815 1180 in
adamc@815 1181 ((EError (e, t), loc), st)
adamc@815 1182 end
adamc@815 1183 | EReturnBlob {blob, mimeType, t} =>
adamc@815 1184 let
adamc@815 1185 val (blob, st) = exp outer (blob, st)
adamc@815 1186 val (mimeType, st) = exp outer (mimeType, st)
adamc@815 1187 in
adamc@815 1188 ((EReturnBlob {blob = blob, mimeType = mimeType, t = t}, loc), st)
adamc@815 1189 end
adamc@815 1190
adamc@815 1191 | EWrite e =>
adamc@815 1192 let
adamc@815 1193 val (e, st) = exp outer (e, st)
adamc@815 1194 in
adamc@815 1195 ((EWrite e, loc), st)
adamc@815 1196 end
adamc@815 1197 | ESeq (e1, e2) =>
adamc@815 1198 let
adamc@815 1199 val (e1, st) = exp outer (e1, st)
adamc@815 1200 val (e2, st) = exp outer (e2, st)
adamc@815 1201 in
adamc@815 1202 ((ESeq (e1, e2), loc), st)
adamc@815 1203 end
adamc@815 1204 | ELet (x, t, e1, e2) =>
adamc@815 1205 let
adamc@815 1206 val (e1, st) = exp outer (e1, st)
adamc@815 1207 val (e2, st) = exp (t :: outer) (e2, st)
adamc@815 1208 in
adamc@815 1209 ((ELet (x, t, e1, e2), loc), st)
adamc@815 1210 end
adamc@815 1211
adamc@815 1212 | EClosure (n, es) =>
adamc@815 1213 let
adamc@815 1214 val (es, st) = ListUtil.foldlMap (exp outer) st es
adamc@815 1215 in
adamc@815 1216 ((EClosure (n, es), loc), st)
adamc@815 1217 end
adamc@815 1218
adamc@815 1219 | EQuery {exps, tables, state, query, body, initial} =>
adamc@815 1220 let
adamc@815 1221 val (query, st) = exp outer (query, st)
adamc@815 1222 val (body, st) = exp outer (body, st)
adamc@815 1223 val (initial, st) = exp outer (initial, st)
adamc@815 1224 in
adamc@815 1225 ((EQuery {exps = exps, tables = tables, state = state,
adamc@815 1226 query = query, body = body, initial = initial}, loc), st)
adamc@815 1227 end
adamc@815 1228 | EDml e =>
adamc@815 1229 let
adamc@815 1230 val (e, st) = exp outer (e, st)
adamc@815 1231 in
adamc@815 1232 ((EDml e, loc), st)
adamc@815 1233 end
adamc@815 1234 | ENextval e =>
adamc@815 1235 let
adamc@815 1236 val (e, st) = exp outer (e, st)
adamc@815 1237 in
adamc@815 1238 ((ENextval e, loc), st)
adamc@815 1239 end
adamc@815 1240
adamc@815 1241 | EUnurlify (e, t) =>
adamc@815 1242 let
adamc@815 1243 val (e, st) = exp outer (e, st)
adamc@815 1244 in
adamc@815 1245 ((EUnurlify (e, t), loc), st)
adamc@815 1246 end
adamc@815 1247
adamc@815 1248 | EJavaScript (m, e') =>
adamc@815 1249 (let
adamc@815 1250 val len = length outer
adamc@815 1251 fun str s = (EPrim (Prim.String s), #2 e')
adamc@815 1252
adamc@815 1253 val locals = List.tabulate
adamc@815 1254 (varDepth e',
adamc@815 1255 fn i => str ("var _" ^ Int.toString (len + i) ^ ";"))
adamc@815 1256
adamc@815 1257 val (e', st) = jsExp m outer 0 (e', st)
adamc@815 1258
adamc@815 1259 val e' =
adamc@815 1260 case locals of
adamc@815 1261 [] => e'
adamc@815 1262 | _ =>
adamc@815 1263 strcat (#2 e') (str "(function(){"
adamc@815 1264 :: locals
adamc@815 1265 @ [str "return ",
adamc@815 1266 e',
adamc@815 1267 str "}())"])
adamc@815 1268 in
adamc@815 1269 (e', st)
adamc@815 1270 end handle CantEmbed _ => (e, st))
adamc@815 1271
adamc@815 1272 | ESignalReturn e =>
adamc@815 1273 let
adamc@815 1274 val (e, st) = exp outer (e, st)
adamc@815 1275 in
adamc@815 1276 ((ESignalReturn e, loc), st)
adamc@815 1277 end
adamc@815 1278 | ESignalBind (e1, e2) =>
adamc@815 1279 let
adamc@815 1280 val (e1, st) = exp outer (e1, st)
adamc@815 1281 val (e2, st) = exp outer (e2, st)
adamc@815 1282 in
adamc@815 1283 ((ESignalBind (e1, e2), loc), st)
adamc@815 1284 end
adamc@815 1285 | ESignalSource e =>
adamc@815 1286 let
adamc@815 1287 val (e, st) = exp outer (e, st)
adamc@815 1288 in
adamc@815 1289 ((ESignalSource e, loc), st)
adamc@815 1290 end
adamc@815 1291
adamc@815 1292 | EServerCall (e1, e2, t, ef) =>
adamc@815 1293 let
adamc@815 1294 val (e1, st) = exp outer (e1, st)
adamc@815 1295 val (e2, st) = exp outer (e2, st)
adamc@815 1296 in
adamc@815 1297 ((EServerCall (e1, e2, t, ef), loc), st)
adamc@815 1298 end
adamc@815 1299 | ERecv (e1, e2, t) =>
adamc@815 1300 let
adamc@815 1301 val (e1, st) = exp outer (e1, st)
adamc@815 1302 val (e2, st) = exp outer (e2, st)
adamc@815 1303 in
adamc@815 1304 ((ERecv (e1, e2, t), loc), st)
adamc@815 1305 end
adamc@815 1306 | ESleep (e1, e2) =>
adamc@815 1307 let
adamc@815 1308 val (e1, st) = exp outer (e1, st)
adamc@815 1309 val (e2, st) = exp outer (e2, st)
adamc@815 1310 in
adamc@815 1311 ((ESleep (e1, e2), loc), st)
adamc@815 1312 end)
adamc@815 1313
adamc@815 1314 fun decl (d as (_, loc), st) =
adamc@815 1315 case #1 d of
adamc@815 1316 DVal (x, n, t, e, s) =>
adamc@815 1317 let
adamc@815 1318 val (e, st) = exp [] (e, st)
adamc@815 1319 in
adamc@815 1320 ((DVal (x, n, t, e, s), loc), st)
adamc@815 1321 end
adamc@815 1322 | DValRec vis =>
adamc@815 1323 let
adamc@815 1324 val (vis, st) = ListUtil.foldlMap (fn ((x, n, t, e, s), st) =>
adamc@815 1325 let
adamc@815 1326 val (e, st) = exp [] (e, st)
adamc@815 1327 in
adamc@815 1328 ((x, n, t, e, s), st)
adamc@815 1329 end) st vis
adamc@815 1330 in
adamc@815 1331 ((DValRec vis, loc), st)
adamc@815 1332 end
adamc@815 1333 | _ => (d, st)
adamc@567 1334
adamc@567 1335 fun doDecl (d, st) =
adamc@567 1336 let
adamc@815 1337 (*val () = Print.preface ("doDecl", MonoPrint.p_decl MonoEnv.empty d)*)
adamc@815 1338 val (d, st) = decl (d, st)
adamc@567 1339 in
adamc@567 1340 (List.revAppend (#decls st, [d]),
adamc@567 1341 {decls = [],
adamc@589 1342 script = #script st,
adamc@595 1343 included = #included st,
adamc@595 1344 injectors = #injectors st,
adamc@800 1345 listInjectors = #listInjectors st,
adamc@638 1346 decoders = #decoders st,
adamc@595 1347 maxName = #maxName st})
adamc@567 1348 end
adamc@567 1349
adamc@567 1350 val (ds, st) = ListUtil.foldlMapConcat doDecl
adamc@567 1351 {decls = [],
adamc@589 1352 script = [],
adamc@595 1353 included = IS.empty,
adamc@595 1354 injectors = IM.empty,
adamc@800 1355 listInjectors = TM.empty,
adamc@638 1356 decoders = IM.empty,
adamc@595 1357 maxName = U.File.maxName file + 1}
adamc@815 1358 file
adamc@569 1359
adamc@569 1360 val inf = TextIO.openIn (OS.Path.joinDirFile {dir = Config.libJs, file = "urweb.js"})
adamc@569 1361 fun lines acc =
adamc@569 1362 case TextIO.inputLine inf of
adamc@569 1363 NONE => String.concat (rev acc)
adamc@569 1364 | SOME line => lines (line :: acc)
adamc@569 1365 val lines = lines []
adamc@794 1366
adamc@794 1367 val script =
adamc@794 1368 if !foundJavaScript then
adamc@794 1369 lines ^ String.concat (rev (#script st))
adamc@794 1370 else
adamc@794 1371 ""
adamc@567 1372 in
adamc@569 1373 TextIO.closeIn inf;
adamc@794 1374 (DJavaScript script, ErrorMsg.dummySpan) :: ds
adamc@567 1375 end
adamc@567 1376
adamc@567 1377 end