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Start of Option; Basis.current; fix missed cases in Jscomp.isNullable
author Adam Chlipala <adamc@hcoop.net>
date Sun, 07 Jun 2009 11:13:18 -0400
parents e4a02e4fa35c
children 0f7e2cca6d9b
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@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@841 197 | TList _ => true
adamc@841 198 | TDatatype (_, ref (Option, _)) => true
adamc@594 199 | TRecord [] => true
adamc@594 200 | _ => false
adamc@594 201
adamc@593 202 fun quoteExp loc (t : typ) (e, st) =
adamc@590 203 case #1 t of
adamc@593 204 TSource => (strcat loc [str loc "s",
adamc@593 205 (EFfiApp ("Basis", "htmlifyInt", [e]), loc)], st)
adamc@590 206
adamc@593 207 | TRecord [] => (str loc "null", st)
adamc@593 208 | TRecord [(x, t)] =>
adamc@593 209 let
adamc@593 210 val (e, st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 211 in
adamc@593 212 (strcat loc [str loc ("{_" ^ x ^ ":"),
adamc@593 213 e,
adamc@593 214 str loc "}"], st)
adamc@593 215 end
adamc@593 216 | TRecord ((x, t) :: xts) =>
adamc@593 217 let
adamc@593 218 val (e', st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 219 val (es, st) = ListUtil.foldlMap
adamc@593 220 (fn ((x, t), st) =>
adamc@593 221 let
adamc@593 222 val (e, st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 223 in
adamc@593 224 (strcat loc [str loc (",_" ^ x ^ ":"), e], st)
adamc@593 225 end)
adamc@593 226 st xts
adamc@593 227 in
adamc@593 228 (strcat loc (str loc ("{_" ^ x ^ ":")
adamc@593 229 :: e'
adamc@593 230 :: es
adamc@593 231 @ [str loc "}"]), st)
adamc@593 232 end
adamc@590 233
adamc@593 234 | TFfi ("Basis", "string") => ((EFfiApp ("Basis", "jsifyString", [e]), loc), st)
adamc@593 235 | TFfi ("Basis", "int") => ((EFfiApp ("Basis", "htmlifyInt", [e]), loc), st)
adamc@593 236 | TFfi ("Basis", "float") => ((EFfiApp ("Basis", "htmlifyFloat", [e]), loc), st)
adamc@682 237 | TFfi ("Basis", "channel") => ((EFfiApp ("Basis", "jsifyChannel", [e]), loc), st)
adamc@593 238
adamc@593 239 | TFfi ("Basis", "bool") => ((ECase (e,
adamc@593 240 [((PCon (Enum, PConFfi {mod = "Basis",
adamc@593 241 datatyp = "bool",
adamc@593 242 con = "True",
adamc@593 243 arg = NONE}, NONE), loc),
adamc@593 244 str loc "true"),
adamc@593 245 ((PCon (Enum, PConFfi {mod = "Basis",
adamc@593 246 datatyp = "bool",
adamc@593 247 con = "False",
adamc@593 248 arg = NONE}, NONE), loc),
adamc@593 249 str loc "false")],
adamc@593 250 {disc = (TFfi ("Basis", "bool"), loc),
adamc@593 251 result = (TFfi ("Basis", "string"), loc)}), loc),
adamc@593 252 st)
adamc@592 253
adamc@594 254 | TOption t =>
adamc@594 255 let
adamc@594 256 val (e', st) = quoteExp loc t ((ERel 0, loc), st)
adamc@594 257 in
adamc@813 258 (case #1 e' of
adamc@813 259 EPrim (Prim.String "ERROR") => raise Fail "UHOH"
adamc@813 260 | _ =>
adamc@813 261 (ECase (e,
adamc@813 262 [((PNone t, loc),
adamc@813 263 str loc "null"),
adamc@813 264 ((PSome (t, (PVar ("x", t), loc)), loc),
adamc@813 265 if isNullable t then
adamc@813 266 strcat loc [str loc "{v:", e', str loc "}"]
adamc@813 267 else
adamc@813 268 e')],
adamc@813 269 {disc = (TOption t, loc),
adamc@813 270 result = (TFfi ("Basis", "string"), loc)}), loc),
adamc@594 271 st)
adamc@594 272 end
adamc@594 273
adamc@800 274 | TList t' =>
adamc@800 275 (case TM.find (#listInjectors st, t') of
adamc@800 276 SOME n' => ((EApp ((ENamed n', loc), e), loc), st)
adamc@800 277 | NONE =>
adamc@800 278 let
adamc@800 279 val rt = (TRecord [("1", t'), ("2", t)], loc)
adamc@800 280
adamc@800 281 val n' = #maxName st
adamc@800 282 val st = {decls = #decls st,
adamc@800 283 script = #script st,
adamc@800 284 included = #included st,
adamc@800 285 injectors = #injectors st,
adamc@800 286 listInjectors = TM.insert (#listInjectors st, t', n'),
adamc@800 287 decoders = #decoders st,
adamc@800 288 maxName = n' + 1}
adamc@800 289
adamc@800 290 val s = (TFfi ("Basis", "string"), loc)
adamc@801 291 val (e', st) = quoteExp loc t' ((EField ((ERel 0, loc), "1"), loc), st)
adamc@800 292
adamc@800 293 val body = (ECase ((ERel 0, loc),
adamc@800 294 [((PNone rt, loc),
adamc@800 295 str loc "null"),
adamc@800 296 ((PSome (rt, (PVar ("x", rt), loc)), loc),
adamc@800 297 strcat loc [str loc "{v:{_1:",
adamc@800 298 e',
adamc@800 299 str loc ",_2:",
adamc@800 300 (EApp ((ENamed n', loc),
adamc@800 301 (EField ((ERel 0, loc), "2"), loc)), loc),
adamc@800 302 str loc "}}"])],
adamc@800 303 {disc = t, result = s}), loc)
adamc@800 304 val body = (EAbs ("x", t, s, body), loc)
adamc@800 305
adamc@840 306 val st = {decls = ("jsify", n', (TFun (t, s), loc),
adamc@840 307 body, "jsify") :: #decls st,
adamc@800 308 script = #script st,
adamc@800 309 included = #included st,
adamc@800 310 injectors = #injectors st,
adamc@800 311 listInjectors = #listInjectors st,
adamc@800 312 decoders= #decoders st,
adamc@800 313 maxName = #maxName st}
adamc@800 314
adamc@800 315
adamc@800 316 in
adamc@800 317 ((EApp ((ENamed n', loc), e), loc), st)
adamc@800 318 end)
adamc@800 319
adamc@595 320 | TDatatype (n, ref (dk, cs)) =>
adamc@595 321 (case IM.find (#injectors st, n) of
adamc@595 322 SOME n' => ((EApp ((ENamed n', loc), e), loc), st)
adamc@595 323 | NONE =>
adamc@595 324 let
adamc@595 325 val n' = #maxName st
adamc@595 326 val st = {decls = #decls st,
adamc@595 327 script = #script st,
adamc@595 328 included = #included st,
adamc@595 329 injectors = IM.insert (#injectors st, n, n'),
adamc@800 330 listInjectors = #listInjectors st,
adamc@638 331 decoders = #decoders st,
adamc@595 332 maxName = n' + 1}
adamc@595 333
adamc@595 334 val (pes, st) = ListUtil.foldlMap
adamc@595 335 (fn ((_, cn, NONE), st) =>
adamc@595 336 (((PCon (dk, PConVar cn, NONE), loc),
adamc@596 337 case dk of
adamc@596 338 Option => str loc "null"
adamc@596 339 | _ => str loc (Int.toString cn)),
adamc@595 340 st)
adamc@595 341 | ((_, cn, SOME t), st) =>
adamc@595 342 let
adamc@595 343 val (e, st) = quoteExp loc t ((ERel 0, loc), st)
adamc@595 344 in
adamc@595 345 (((PCon (dk, PConVar cn, SOME (PVar ("x", t), loc)), loc),
adamc@596 346 case dk of
adamc@596 347 Option =>
adamc@596 348 if isNullable t then
adamc@638 349 strcat loc [str loc "{v:",
adamc@596 350 e,
adamc@596 351 str loc "}"]
adamc@596 352 else
adamc@596 353 e
adamc@597 354 | _ => strcat loc [str loc ("{n:" ^ Int.toString cn
adamc@597 355 ^ ",v:"),
adamc@597 356 e,
adamc@597 357 str loc "}"]),
adamc@595 358 st)
adamc@595 359 end)
adamc@595 360 st cs
adamc@595 361
adamc@595 362 val s = (TFfi ("Basis", "string"), loc)
adamc@595 363 val body = (ECase ((ERel 0, loc), pes,
adamc@595 364 {disc = t, result = s}), loc)
adamc@595 365 val body = (EAbs ("x", t, s, body), loc)
adamc@595 366
adamc@840 367 val st = {decls = ("jsify", n', (TFun (t, s), loc),
adamc@840 368 body, "jsify") :: #decls st,
adamc@595 369 script = #script st,
adamc@595 370 included = #included st,
adamc@595 371 injectors = #injectors st,
adamc@800 372 listInjectors = #listInjectors st,
adamc@638 373 decoders= #decoders st,
adamc@595 374 maxName = #maxName st}
adamc@595 375 in
adamc@595 376 ((EApp ((ENamed n', loc), e), loc), st)
adamc@595 377 end)
adamc@595 378
adamc@834 379 | _ => ((*Print.prefaces "Can't embed" [("t", MonoPrint.p_typ MonoEnv.empty t)];*)
adamc@834 380 raise CantEmbed t)
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@838 528 (*if mode = Script then
adamc@589 529 "<"
adamc@838 530 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@821 544 | Prim.Char ch => str ("'" ^ String.str ch ^ "'")
adamc@589 545 | _ => str (Prim.toString p)
adamc@589 546
adamc@589 547 fun jsPat depth inner (p, _) succ fail =
adamc@589 548 case p of
adamc@589 549 PWild => succ
adamc@589 550 | PVar _ => strcat [str ("(_" ^ Int.toString (len + inner) ^ "=d"
adamc@589 551 ^ Int.toString depth ^ ","),
adamc@589 552 succ,
adamc@589 553 str ")"]
adamc@589 554 | PPrim p => strcat [str ("(d" ^ Int.toString depth ^ "=="),
adamc@589 555 jsPrim p,
adamc@589 556 str "?",
adamc@589 557 succ,
adamc@589 558 str ":",
adamc@589 559 fail,
adamc@589 560 str ")"]
adamc@589 561 | PCon (_, PConFfi {mod = "Basis", con = "True", ...}, NONE) =>
adamc@589 562 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 563 succ,
adamc@589 564 str ":",
adamc@589 565 fail,
adamc@589 566 str ")"]
adamc@589 567 | PCon (_, PConFfi {mod = "Basis", con = "False", ...}, NONE) =>
adamc@589 568 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 569 fail,
adamc@589 570 str ":",
adamc@589 571 succ,
adamc@589 572 str ")"]
adamc@596 573 | PCon (Option, _, NONE) =>
adamc@596 574 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@596 575 fail,
adamc@596 576 str ":",
adamc@596 577 succ,
adamc@596 578 str ")"]
adamc@596 579 | PCon (Option, PConVar n, SOME p) =>
adamc@596 580 (case IM.find (someTs, n) of
adamc@596 581 NONE => raise Fail "Jscomp: Not in someTs"
adamc@596 582 | SOME t =>
adamc@810 583 strcat [str ("(d" ^ Int.toString depth ^ "?(d"
adamc@810 584 ^ Int.toString (depth+1) ^ "=d" ^ Int.toString depth
adamc@596 585 ^ (if isNullable t then
adamc@810 586 ".v,"
adamc@596 587 else
adamc@813 588 "")
adamc@813 589 ^ ","),
adamc@810 590 jsPat (depth+1) inner p succ fail,
adamc@596 591 str "):",
adamc@596 592 fail,
adamc@596 593 str ")"])
adamc@589 594 | PCon (_, pc, NONE) =>
adamc@589 595 strcat [str ("(d" ^ Int.toString depth ^ "=="),
adamc@589 596 patCon pc,
adamc@589 597 str "?",
adamc@589 598 succ,
adamc@589 599 str ":",
adamc@589 600 fail,
adamc@589 601 str ")"]
adamc@589 602 | PCon (_, pc, SOME p) =>
adamc@589 603 strcat [str ("(d" ^ Int.toString depth ^ ".n=="),
adamc@589 604 patCon pc,
adamc@810 605 str ("?(d" ^ Int.toString (depth+1) ^ "=d" ^ Int.toString depth ^ ".v,"),
adamc@810 606 jsPat (depth+1) inner p succ fail,
adamc@589 607 str "):",
adamc@589 608 fail,
adamc@589 609 str ")"]
adamc@589 610 | PRecord xps =>
adamc@589 611 let
adamc@589 612 val (_, succ) = foldl
adamc@589 613 (fn ((x, p, _), (inner, succ)) =>
adamc@589 614 (inner + E.patBindsN p,
adamc@589 615 strcat [str ("(d" ^ Int.toString (depth+1) ^ "=d"
adamc@589 616 ^ Int.toString depth ^ "._" ^ x ^ ","),
adamc@589 617 jsPat (depth+1) inner p succ fail,
adamc@589 618 str ")"]))
adamc@589 619 (inner, succ) xps
adamc@589 620 in
adamc@589 621 succ
adamc@589 622 end
adamc@589 623 | PNone _ => strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 624 fail,
adamc@589 625 str ":",
adamc@589 626 succ,
adamc@589 627 str ")"]
adamc@829 628 | PSome (t, p) => strcat [str ("(d" ^ Int.toString depth ^ "?(d" ^ Int.toString (depth+1)
adamc@829 629 ^ "=d" ^ Int.toString depth
adamc@829 630 ^ (if isNullable t then
adamc@829 631 ".v"
adamc@829 632 else
adamc@829 633 "")
adamc@829 634 ^ ","),
adamc@829 635 jsPat (depth+1) inner p succ fail,
adamc@829 636 str "):",
adamc@829 637 fail,
adamc@829 638 str ")"]
adamc@589 639
adamc@601 640 val jsifyString = String.translate (fn #"\"" => "\\\""
adamc@601 641 | #"\\" => "\\\\"
adamc@601 642 | ch => String.str ch)
adamc@601 643
adamc@601 644 fun jsifyStringMulti (n, s) =
adamc@601 645 case n of
adamc@601 646 0 => s
adamc@601 647 | _ => jsifyStringMulti (n - 1, jsifyString s)
adamc@601 648
adamc@601 649 fun deStrcat level (all as (e, _)) =
adamc@589 650 case e of
adamc@601 651 EPrim (Prim.String s) => jsifyStringMulti (level, s)
adamc@601 652 | EStrcat (e1, e2) => deStrcat level e1 ^ deStrcat level e2
adamc@601 653 | EFfiApp ("Basis", "jsifyString", [e]) => "\"" ^ deStrcat (level + 1) e ^ "\""
adamc@601 654 | _ => (Print.prefaces "deStrcat" [("e", MonoPrint.p_exp MonoEnv.empty all)];
adamc@601 655 raise Fail "Jscomp: deStrcat")
adamc@590 656
adamc@590 657 val quoteExp = quoteExp loc
adamc@567 658 in
adamc@801 659 (*Print.prefaces "jsE" [("e", MonoPrint.p_exp MonoEnv.empty e),
adamc@801 660 ("inner", Print.PD.string (Int.toString inner))];*)
adamc@590 661
adamc@589 662 case #1 e of
adamc@589 663 EPrim p => (jsPrim p, st)
adamc@589 664 | ERel n =>
adamc@589 665 if n < inner then
adamc@589 666 (str ("_" ^ var n), st)
adamc@589 667 else
adamc@589 668 let
adamc@589 669 val n = n - inner
adamc@813 670 (*val () = Print.prefaces "quote" [("t", MonoPrint.p_typ MonoEnv.empty
adamc@813 671 (List.nth (outer, n)))]*)
adamc@589 672 in
adamc@800 673 quoteExp (List.nth (outer, n)) ((ERel n, loc), st)
adamc@589 674 end
adamc@567 675
adamc@589 676 | ENamed n =>
adamc@589 677 let
adamc@589 678 val st =
adamc@589 679 if IS.member (#included st, n) then
adamc@589 680 st
adamc@589 681 else
adamc@589 682 case IM.find (nameds, n) of
adamc@589 683 NONE => raise Fail "Jscomp: Unbound ENamed"
adamc@589 684 | SOME e =>
adamc@589 685 let
adamc@589 686 val st = {decls = #decls st,
adamc@589 687 script = #script st,
adamc@595 688 included = IS.add (#included st, n),
adamc@595 689 injectors = #injectors st,
adamc@800 690 listInjectors = #listInjectors st,
adamc@638 691 decoders = #decoders st,
adamc@595 692 maxName = #maxName st}
adamc@578 693
adamc@801 694 val old = e
adamc@800 695 val (e, st) = jsExp mode [] 0 (e, st)
adamc@801 696 val new = e
adamc@601 697 val e = deStrcat 0 e
adamc@589 698
adamc@589 699 val sc = "_n" ^ Int.toString n ^ "=" ^ e ^ ";\n"
adamc@589 700 in
adamc@801 701 (*Print.prefaces "jsify'" [("old", MonoPrint.p_exp MonoEnv.empty old),
adamc@801 702 ("new", MonoPrint.p_exp MonoEnv.empty new)];*)
adamc@589 703 {decls = #decls st,
adamc@589 704 script = sc :: #script st,
adamc@595 705 included = #included st,
adamc@595 706 injectors = #injectors st,
adamc@800 707 listInjectors = #listInjectors st,
adamc@638 708 decoders= #decoders st,
adamc@595 709 maxName = #maxName st}
adamc@589 710 end
adamc@589 711 in
adamc@589 712 (str ("_n" ^ Int.toString n), st)
adamc@589 713 end
adamc@589 714
adamc@596 715 | ECon (Option, _, NONE) => (str "null", st)
adamc@596 716 | ECon (Option, PConVar n, SOME e) =>
adamc@596 717 let
adamc@596 718 val (e, st) = jsE inner (e, st)
adamc@596 719 in
adamc@596 720 case IM.find (someTs, n) of
adamc@596 721 NONE => raise Fail "Jscomp: Not in someTs [2]"
adamc@596 722 | SOME t =>
adamc@596 723 (if isNullable t then
adamc@596 724 strcat [str "{v:",
adamc@596 725 e,
adamc@596 726 str "}"]
adamc@596 727 else
adamc@596 728 e, st)
adamc@596 729 end
adamc@596 730
adamc@589 731 | ECon (_, pc, NONE) => (patCon pc, st)
adamc@589 732 | ECon (_, pc, SOME e) =>
adamc@589 733 let
adamc@589 734 val (s, st) = jsE inner (e, st)
adamc@589 735 in
adamc@589 736 (strcat [str "{n:",
adamc@589 737 patCon pc,
adamc@589 738 str ",v:",
adamc@589 739 s,
adamc@589 740 str "}"], st)
adamc@589 741 end
adamc@596 742
adamc@589 743 | ENone _ => (str "null", st)
adamc@589 744 | ESome (t, e) =>
adamc@572 745 let
adamc@572 746 val (e, st) = jsE inner (e, st)
adamc@572 747 in
adamc@589 748 (if isNullable t then
adamc@589 749 strcat [str "{v:", e, str "}"]
adamc@589 750 else
adamc@589 751 e, st)
adamc@589 752 end
adamc@589 753
adamc@589 754 | EFfi k =>
adamc@589 755 let
adamc@765 756 val name = case Settings.jsFunc k of
adamc@589 757 NONE => (EM.errorAt loc ("Unsupported FFI identifier " ^ #2 k
adamc@589 758 ^ " in JavaScript");
adamc@589 759 "ERROR")
adamc@589 760 | SOME s => s
adamc@589 761 in
adamc@589 762 (str name, st)
adamc@589 763 end
adamc@589 764 | EFfiApp (m, x, args) =>
adamc@589 765 let
adamc@765 766 val name = case Settings.jsFunc (m, x) of
adamc@589 767 NONE => (EM.errorAt loc ("Unsupported FFI function "
adamc@589 768 ^ x ^ " in JavaScript");
adamc@589 769 "ERROR")
adamc@589 770 | SOME s => s
adamc@589 771 in
adamc@589 772 case args of
adamc@589 773 [] => (str (name ^ "()"), st)
adamc@589 774 | [e] =>
adamc@589 775 let
adamc@589 776 val (e, st) = jsE inner (e, st)
adamc@589 777 in
adamc@589 778 (strcat [str (name ^ "("),
adamc@589 779 e,
adamc@589 780 str ")"], st)
adamc@589 781 end
adamc@589 782 | e :: es =>
adamc@589 783 let
adamc@589 784 val (e, st) = jsE inner (e, st)
adamc@589 785 val (es, st) = ListUtil.foldlMapConcat
adamc@589 786 (fn (e, st) =>
adamc@589 787 let
adamc@589 788 val (e, st) = jsE inner (e, st)
adamc@589 789 in
adamc@589 790 ([str ",", e], st)
adamc@589 791 end)
adamc@589 792 st es
adamc@589 793 in
adamc@589 794 (strcat (str (name ^ "(")
adamc@589 795 :: e
adamc@589 796 :: es
adamc@589 797 @ [str ")"]), st)
adamc@589 798 end
adamc@589 799 end
adamc@589 800
adamc@589 801 | EApp (e1, e2) =>
adamc@589 802 let
adamc@589 803 val (e1, st) = jsE inner (e1, st)
adamc@589 804 val (e2, st) = jsE inner (e2, st)
adamc@589 805 in
adamc@589 806 (strcat [e1, str "(", e2, str ")"], st)
adamc@589 807 end
adamc@589 808 | EAbs (_, _, _, e) =>
adamc@589 809 let
adamc@589 810 val locals = List.tabulate
adamc@589 811 (varDepth e,
adamc@589 812 fn i => str ("var _" ^ Int.toString (len + inner + i + 1) ^ ";"))
adamc@589 813 val (e, st) = jsE (inner + 1) (e, st)
adamc@589 814 in
adamc@589 815 (strcat (str ("function(_"
adamc@589 816 ^ Int.toString (len + inner)
adamc@589 817 ^ "){")
adamc@589 818 :: locals
adamc@589 819 @ [str "return ",
adamc@589 820 e,
adamc@589 821 str "}"]),
adamc@589 822 st)
adamc@589 823 end
adamc@589 824
adamc@589 825 | EUnop (s, e) =>
adamc@589 826 let
adamc@589 827 val (e, st) = jsE inner (e, st)
adamc@589 828 in
adamc@589 829 (strcat [str ("(" ^ s),
adamc@572 830 e,
adamc@589 831 str ")"],
adamc@589 832 st)
adamc@589 833 end
adamc@589 834 | EBinop (s, e1, e2) =>
adamc@589 835 let
adamc@729 836 val s =
adamc@729 837 case s of
adamc@729 838 "!strcmp" => "=="
adamc@729 839 | _ => s
adamc@729 840
adamc@589 841 val (e1, st) = jsE inner (e1, st)
adamc@589 842 val (e2, st) = jsE inner (e2, st)
adamc@589 843 in
adamc@589 844 (strcat [str "(",
adamc@589 845 e1,
adamc@589 846 str s,
adamc@589 847 e2,
adamc@589 848 str ")"],
adamc@589 849 st)
adamc@589 850 end
adamc@589 851
adamc@589 852 | ERecord [] => (str "null", st)
adamc@589 853 | ERecord [(x, e, _)] =>
adamc@589 854 let
adamc@589 855 val (e, st) = jsE inner (e, st)
adamc@589 856 in
adamc@835 857 (strcat [str ("{_" ^ x ^ ":"), e, str "}"], st)
adamc@589 858 end
adamc@589 859 | ERecord ((x, e, _) :: xes) =>
adamc@589 860 let
adamc@589 861 val (e, st) = jsE inner (e, st)
adamc@589 862
adamc@589 863 val (es, st) =
adamc@589 864 foldr (fn ((x, e, _), (es, st)) =>
adamc@589 865 let
adamc@589 866 val (e, st) = jsE inner (e, st)
adamc@589 867 in
adamc@589 868 (str (",_" ^ x ^ ":")
adamc@589 869 :: e
adamc@589 870 :: es,
adamc@589 871 st)
adamc@589 872 end)
adamc@589 873 ([str "}"], st) xes
adamc@589 874 in
adamc@589 875 (strcat (str ("{_" ^ x ^ ":")
adamc@589 876 :: e
adamc@589 877 :: es),
adamc@589 878 st)
adamc@589 879 end
adamc@589 880 | EField (e, x) =>
adamc@589 881 let
adamc@589 882 val (e, st) = jsE inner (e, st)
adamc@589 883 in
adamc@589 884 (strcat [e,
adamc@589 885 str ("._" ^ x)], st)
adamc@589 886 end
adamc@589 887
adamc@591 888 | ECase (e', pes, {result, ...}) =>
adamc@801 889 let
adamc@801 890 val plen = length pes
adamc@589 891
adamc@801 892 val (cases, st) = ListUtil.foldliMap
adamc@801 893 (fn (i, (p, e), st) =>
adamc@801 894 let
adamc@801 895 val (e, st) = jsE (inner + E.patBindsN p) (e, st)
adamc@801 896 val fail =
adamc@801 897 if i = plen - 1 then
adamc@810 898 str ("pf(\"" ^ ErrorMsg.spanToString loc ^ "\")")
adamc@801 899 else
adamc@801 900 str ("c" ^ Int.toString (i+1) ^ "()")
adamc@801 901 val c = jsPat 0 inner p e fail
adamc@801 902 in
adamc@801 903 (strcat [str ("c" ^ Int.toString i ^ "=function(){return "),
adamc@801 904 c,
adamc@801 905 str "},"],
adamc@801 906 st)
adamc@801 907 end)
adamc@801 908 st pes
adamc@589 909
adamc@801 910 val depth = foldl Int.max 0 (map (fn (p, _) => 1 + patDepth p) pes)
adamc@801 911 val normalDepth = foldl Int.max 0 (map (fn (_, e) => 1 + varDepth e) pes)
adamc@801 912 val (e, st) = jsE inner (e', st)
adamc@801 913
adamc@801 914 val len = inner + len
adamc@801 915 val normalVars = List.tabulate (normalDepth, fn n => "_" ^ Int.toString (n + len))
adamc@801 916 val patVars = List.tabulate (depth, fn n => "d" ^ Int.toString n)
adamc@827 917 val caseVars = ListUtil.mapi (fn (i, _) => "c" ^ Int.toString i) pes
adamc@801 918 in
adamc@801 919 (strcat (str "(function (){ var "
adamc@827 920 :: str (String.concatWith "," (normalVars @ patVars @ caseVars) ^ ";d0=")
adamc@801 921 :: e
adamc@801 922 :: str ";\nreturn ("
adamc@801 923 :: List.revAppend (cases,
adamc@801 924 [str "c0()) } ())"])), st)
adamc@801 925 end
adamc@589 926
adamc@589 927 | EStrcat (e1, e2) =>
adamc@589 928 let
adamc@589 929 val (e1, st) = jsE inner (e1, st)
adamc@589 930 val (e2, st) = jsE inner (e2, st)
adamc@589 931 in
adamc@693 932 (strcat [str "cat(", e1, str ",", e2, str ")"], st)
adamc@589 933 end
adamc@589 934
adamc@589 935 | EError (e, _) =>
adamc@589 936 let
adamc@589 937 val (e, st) = jsE inner (e, st)
adamc@589 938 in
adamc@726 939 (strcat [str "er(", e, str ")"],
adamc@589 940 st)
adamc@589 941 end
adamc@589 942
adamc@589 943 | EWrite e =>
adamc@589 944 let
adamc@589 945 val (e, st) = jsE inner (e, st)
adamc@589 946 in
adamc@589 947 (strcat [str "document.write(",
adamc@589 948 e,
adamc@589 949 str ".v)"], st)
adamc@589 950 end
adamc@589 951
adamc@589 952 | ESeq (e1, e2) =>
adamc@589 953 let
adamc@589 954 val (e1, st) = jsE inner (e1, st)
adamc@589 955 val (e2, st) = jsE inner (e2, st)
adamc@589 956 in
adamc@589 957 (strcat [str "(", e1, str ",", e2, str ")"], st)
adamc@589 958 end
adamc@589 959 | ELet (_, _, e1, e2) =>
adamc@589 960 let
adamc@589 961 val (e1, st) = jsE inner (e1, st)
adamc@589 962 val (e2, st) = jsE (inner + 1) (e2, st)
adamc@589 963 in
adamc@589 964 (strcat [str ("(_" ^ Int.toString (len + inner) ^ "="),
adamc@589 965 e1,
adamc@589 966 str ",",
adamc@589 967 e2,
adamc@572 968 str ")"], st)
adamc@572 969 end
adamc@589 970
adamc@815 971 | EJavaScript (Source _, e) =>
adamc@794 972 (foundJavaScript := true;
adamc@815 973 jsE inner (e, st))
adamc@815 974 | EJavaScript (_, e) =>
adamc@815 975 let
adamc@815 976 val (e, st) = jsE inner (e, st)
adamc@815 977 in
adamc@815 978 foundJavaScript := true;
adamc@815 979 (strcat [str "cs(function(){return ",
adamc@815 980 compact inner e,
adamc@815 981 str "})"],
adamc@815 982 st)
adamc@815 983 end
adamc@590 984
adamc@589 985 | EClosure _ => unsupported "EClosure"
adamc@589 986 | EQuery _ => unsupported "Query"
adamc@589 987 | EDml _ => unsupported "DML"
adamc@589 988 | ENextval _ => unsupported "Nextval"
adamc@589 989 | EUnurlify _ => unsupported "EUnurlify"
adamc@741 990 | EReturnBlob _ => unsupported "EUnurlify"
adamc@590 991
adamc@589 992 | ESignalReturn e =>
adamc@572 993 let
adamc@572 994 val (e, st) = jsE inner (e, st)
adamc@572 995 in
adamc@589 996 (strcat [str "sr(",
adamc@589 997 e,
adamc@589 998 str ")"],
adamc@589 999 st)
adamc@589 1000 end
adamc@589 1001 | ESignalBind (e1, e2) =>
adamc@589 1002 let
adamc@589 1003 val (e1, st) = jsE inner (e1, st)
adamc@589 1004 val (e2, st) = jsE inner (e2, st)
adamc@589 1005 in
adamc@589 1006 (strcat [str "sb(",
adamc@589 1007 e1,
adamc@589 1008 str ",",
adamc@589 1009 e2,
adamc@589 1010 str ")"],
adamc@589 1011 st)
adamc@589 1012 end
adamc@589 1013 | ESignalSource e =>
adamc@589 1014 let
adamc@589 1015 val (e, st) = jsE inner (e, st)
adamc@589 1016 in
adamc@589 1017 (strcat [str "ss(",
adamc@589 1018 e,
adamc@589 1019 str ")"],
adamc@589 1020 st)
adamc@572 1021 end
adamc@608 1022
adamc@736 1023 | EServerCall (e, ek, t, eff) =>
adamc@609 1024 let
adamc@614 1025 val (e, st) = jsE inner (e, st)
adamc@609 1026 val (ek, st) = jsE inner (ek, st)
adamc@613 1027 val (unurl, st) = unurlifyExp loc (t, st)
adamc@609 1028 in
adamc@764 1029 (strcat [str ("rc(cat(\"" ^ Settings.getUrlPrefix () ^ "\","),
adamc@614 1030 e,
adamc@703 1031 str ("), function(s){var t=s.split(\"/\");var i=0;return "
adamc@613 1032 ^ unurl ^ "},"),
adamc@609 1033 ek,
adamc@736 1034 str (","
adamc@736 1035 ^ (case eff of
adamc@736 1036 ReadCookieWrite => "true"
adamc@736 1037 | _ => "false")
adamc@736 1038 ^ ")")],
adamc@609 1039 st)
adamc@609 1040 end
adamc@670 1041
adamc@670 1042 | ERecv (e, ek, t) =>
adamc@670 1043 let
adamc@670 1044 val (e, st) = jsE inner (e, st)
adamc@670 1045 val (ek, st) = jsE inner (ek, st)
adamc@670 1046 val (unurl, st) = unurlifyExp loc (t, st)
adamc@670 1047 in
adamc@670 1048 (strcat [str "rv(",
adamc@670 1049 e,
adamc@670 1050 str (", function(s){var t=s.split(\"/\");var i=0;return "
adamc@670 1051 ^ unurl ^ "},"),
adamc@670 1052 ek,
adamc@670 1053 str ")"],
adamc@670 1054 st)
adamc@670 1055 end
adamc@695 1056
adamc@695 1057 | ESleep (e, ek) =>
adamc@695 1058 let
adamc@695 1059 val (e, st) = jsE inner (e, st)
adamc@695 1060 val (ek, st) = jsE inner (ek, st)
adamc@695 1061 in
adamc@695 1062 (strcat [str "window.setTimeout(",
adamc@695 1063 ek,
adamc@695 1064 str ", ",
adamc@695 1065 e,
adamc@695 1066 str ")"],
adamc@695 1067 st)
adamc@695 1068 end
adamc@567 1069 end
adamc@589 1070 in
adamc@589 1071 jsE
adamc@589 1072 end
adamc@567 1073
adamc@567 1074
adamc@815 1075 fun patBinds ((p, _), env) =
adamc@815 1076 case p of
adamc@815 1077 PWild => env
adamc@815 1078 | PVar (_, t) => t :: env
adamc@815 1079 | PPrim _ => env
adamc@815 1080 | PCon (_, _, NONE) => env
adamc@815 1081 | PCon (_, _, SOME p) => patBinds (p, env)
adamc@815 1082 | PRecord xpts => foldl (fn ((_, p, _), env) => patBinds (p, env)) env xpts
adamc@815 1083 | PNone _ => env
adamc@815 1084 | PSome (_, p) => patBinds (p, env)
adamc@815 1085
adamc@815 1086 fun exp outer (e as (_, loc), st) =
adamc@815 1087 ((*Print.preface ("exp", MonoPrint.p_exp MonoEnv.empty e);*)
adamc@815 1088 case #1 e of
adamc@815 1089 EPrim _ => (e, st)
adamc@815 1090 | ERel _ => (e, st)
adamc@815 1091 | ENamed _ => (e, st)
adamc@815 1092 | ECon (_, _, NONE) => (e, st)
adamc@815 1093 | ECon (dk, pc, SOME e) =>
adamc@815 1094 let
adamc@815 1095 val (e, st) = exp outer (e, st)
adamc@815 1096 in
adamc@815 1097 ((ECon (dk, pc, SOME e), loc), st)
adamc@815 1098 end
adamc@815 1099 | ENone _ => (e, st)
adamc@815 1100 | ESome (t, e) =>
adamc@815 1101 let
adamc@815 1102 val (e, st) = exp outer (e, st)
adamc@815 1103 in
adamc@815 1104 ((ESome (t, e), loc), st)
adamc@815 1105 end
adamc@815 1106 | EFfi _ => (e, st)
adamc@815 1107 | EFfiApp (m, x, es) =>
adamc@815 1108 let
adamc@815 1109 val (es, st) = ListUtil.foldlMap (exp outer) st es
adamc@815 1110 in
adamc@815 1111 ((EFfiApp (m, x, es), loc), st)
adamc@815 1112 end
adamc@815 1113 | EApp (e1, e2) =>
adamc@815 1114 let
adamc@815 1115 val (e1, st) = exp outer (e1, st)
adamc@815 1116 val (e2, st) = exp outer (e2, st)
adamc@815 1117 in
adamc@815 1118 ((EApp (e1, e2), loc), st)
adamc@815 1119 end
adamc@815 1120 | EAbs (x, dom, ran, e) =>
adamc@815 1121 let
adamc@815 1122 val (e, st) = exp (dom :: outer) (e, st)
adamc@815 1123 in
adamc@815 1124 ((EAbs (x, dom, ran, e), loc), st)
adamc@815 1125 end
adamc@815 1126
adamc@815 1127 | EUnop (s, e) =>
adamc@815 1128 let
adamc@815 1129 val (e, st) = exp outer (e, st)
adamc@815 1130 in
adamc@815 1131 ((EUnop (s, e), loc), st)
adamc@815 1132 end
adamc@815 1133 | EBinop (s, 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 ((EBinop (s, e1, e2), loc), st)
adamc@815 1139 end
adamc@815 1140
adamc@815 1141 | ERecord xets =>
adamc@815 1142 let
adamc@815 1143 val (xets, st) = ListUtil.foldlMap (fn ((x, e, t), st) =>
adamc@815 1144 let
adamc@815 1145 val (e, st) = exp outer (e, st)
adamc@815 1146 in
adamc@815 1147 ((x, e, t), st)
adamc@815 1148 end) st xets
adamc@815 1149 in
adamc@815 1150 ((ERecord xets, loc), st)
adamc@815 1151 end
adamc@815 1152 | EField (e, s) =>
adamc@815 1153 let
adamc@815 1154 val (e, st) = exp outer (e, st)
adamc@815 1155 in
adamc@815 1156 ((EField (e, s), loc), st)
adamc@815 1157 end
adamc@815 1158
adamc@815 1159 | ECase (e, pes, ts) =>
adamc@815 1160 let
adamc@815 1161 val (e, st) = exp outer (e, st)
adamc@815 1162 val (pes, st) = ListUtil.foldlMap (fn ((p, e), st) =>
adamc@815 1163 let
adamc@815 1164 val (e, st) = exp (patBinds (p, outer)) (e, st)
adamc@815 1165 in
adamc@815 1166 ((p, e), st)
adamc@815 1167 end) st pes
adamc@815 1168 in
adamc@815 1169 ((ECase (e, pes, ts), loc), st)
adamc@815 1170 end
adamc@815 1171
adamc@815 1172 | EStrcat (e1, e2) =>
adamc@815 1173 let
adamc@815 1174 val (e1, st) = exp outer (e1, st)
adamc@815 1175 val (e2, st) = exp outer (e2, st)
adamc@815 1176 in
adamc@815 1177 ((EStrcat (e1, e2), loc), st)
adamc@815 1178 end
adamc@815 1179
adamc@815 1180 | EError (e, t) =>
adamc@815 1181 let
adamc@815 1182 val (e, st) = exp outer (e, st)
adamc@815 1183 in
adamc@815 1184 ((EError (e, t), loc), st)
adamc@815 1185 end
adamc@815 1186 | EReturnBlob {blob, mimeType, t} =>
adamc@815 1187 let
adamc@815 1188 val (blob, st) = exp outer (blob, st)
adamc@815 1189 val (mimeType, st) = exp outer (mimeType, st)
adamc@815 1190 in
adamc@815 1191 ((EReturnBlob {blob = blob, mimeType = mimeType, t = t}, loc), st)
adamc@815 1192 end
adamc@815 1193
adamc@815 1194 | EWrite e =>
adamc@815 1195 let
adamc@815 1196 val (e, st) = exp outer (e, st)
adamc@815 1197 in
adamc@815 1198 ((EWrite e, loc), st)
adamc@815 1199 end
adamc@815 1200 | ESeq (e1, e2) =>
adamc@815 1201 let
adamc@815 1202 val (e1, st) = exp outer (e1, st)
adamc@815 1203 val (e2, st) = exp outer (e2, st)
adamc@815 1204 in
adamc@815 1205 ((ESeq (e1, e2), loc), st)
adamc@815 1206 end
adamc@815 1207 | ELet (x, t, e1, e2) =>
adamc@815 1208 let
adamc@815 1209 val (e1, st) = exp outer (e1, st)
adamc@815 1210 val (e2, st) = exp (t :: outer) (e2, st)
adamc@815 1211 in
adamc@815 1212 ((ELet (x, t, e1, e2), loc), st)
adamc@815 1213 end
adamc@815 1214
adamc@815 1215 | EClosure (n, es) =>
adamc@815 1216 let
adamc@815 1217 val (es, st) = ListUtil.foldlMap (exp outer) st es
adamc@815 1218 in
adamc@815 1219 ((EClosure (n, es), loc), st)
adamc@815 1220 end
adamc@815 1221
adamc@815 1222 | EQuery {exps, tables, state, query, body, initial} =>
adamc@815 1223 let
adamc@815 1224 val (query, st) = exp outer (query, st)
adamc@815 1225 val (body, st) = exp outer (body, st)
adamc@815 1226 val (initial, st) = exp outer (initial, st)
adamc@815 1227 in
adamc@815 1228 ((EQuery {exps = exps, tables = tables, state = state,
adamc@815 1229 query = query, body = body, initial = initial}, loc), st)
adamc@815 1230 end
adamc@815 1231 | EDml e =>
adamc@815 1232 let
adamc@815 1233 val (e, st) = exp outer (e, st)
adamc@815 1234 in
adamc@815 1235 ((EDml e, loc), st)
adamc@815 1236 end
adamc@815 1237 | ENextval e =>
adamc@815 1238 let
adamc@815 1239 val (e, st) = exp outer (e, st)
adamc@815 1240 in
adamc@815 1241 ((ENextval e, loc), st)
adamc@815 1242 end
adamc@815 1243
adamc@815 1244 | EUnurlify (e, t) =>
adamc@815 1245 let
adamc@815 1246 val (e, st) = exp outer (e, st)
adamc@815 1247 in
adamc@815 1248 ((EUnurlify (e, t), loc), st)
adamc@815 1249 end
adamc@815 1250
adamc@815 1251 | EJavaScript (m, e') =>
adamc@815 1252 (let
adamc@815 1253 val len = length outer
adamc@815 1254 fun str s = (EPrim (Prim.String s), #2 e')
adamc@815 1255
adamc@815 1256 val locals = List.tabulate
adamc@815 1257 (varDepth e',
adamc@815 1258 fn i => str ("var _" ^ Int.toString (len + i) ^ ";"))
adamc@815 1259
adamc@815 1260 val (e', st) = jsExp m outer 0 (e', st)
adamc@815 1261
adamc@815 1262 val e' =
adamc@815 1263 case locals of
adamc@815 1264 [] => e'
adamc@815 1265 | _ =>
adamc@815 1266 strcat (#2 e') (str "(function(){"
adamc@815 1267 :: locals
adamc@815 1268 @ [str "return ",
adamc@815 1269 e',
adamc@815 1270 str "}())"])
adamc@815 1271 in
adamc@815 1272 (e', st)
adamc@815 1273 end handle CantEmbed _ => (e, st))
adamc@815 1274
adamc@815 1275 | ESignalReturn e =>
adamc@815 1276 let
adamc@815 1277 val (e, st) = exp outer (e, st)
adamc@815 1278 in
adamc@815 1279 ((ESignalReturn e, loc), st)
adamc@815 1280 end
adamc@815 1281 | ESignalBind (e1, e2) =>
adamc@815 1282 let
adamc@815 1283 val (e1, st) = exp outer (e1, st)
adamc@815 1284 val (e2, st) = exp outer (e2, st)
adamc@815 1285 in
adamc@815 1286 ((ESignalBind (e1, e2), loc), st)
adamc@815 1287 end
adamc@815 1288 | ESignalSource e =>
adamc@815 1289 let
adamc@815 1290 val (e, st) = exp outer (e, st)
adamc@815 1291 in
adamc@815 1292 ((ESignalSource e, loc), st)
adamc@815 1293 end
adamc@815 1294
adamc@815 1295 | EServerCall (e1, e2, t, ef) =>
adamc@815 1296 let
adamc@815 1297 val (e1, st) = exp outer (e1, st)
adamc@815 1298 val (e2, st) = exp outer (e2, st)
adamc@815 1299 in
adamc@815 1300 ((EServerCall (e1, e2, t, ef), loc), st)
adamc@815 1301 end
adamc@815 1302 | ERecv (e1, e2, t) =>
adamc@815 1303 let
adamc@815 1304 val (e1, st) = exp outer (e1, st)
adamc@815 1305 val (e2, st) = exp outer (e2, st)
adamc@815 1306 in
adamc@815 1307 ((ERecv (e1, e2, t), loc), st)
adamc@815 1308 end
adamc@815 1309 | ESleep (e1, e2) =>
adamc@815 1310 let
adamc@815 1311 val (e1, st) = exp outer (e1, st)
adamc@815 1312 val (e2, st) = exp outer (e2, st)
adamc@815 1313 in
adamc@815 1314 ((ESleep (e1, e2), loc), st)
adamc@815 1315 end)
adamc@815 1316
adamc@815 1317 fun decl (d as (_, loc), st) =
adamc@815 1318 case #1 d of
adamc@815 1319 DVal (x, n, t, e, s) =>
adamc@815 1320 let
adamc@815 1321 val (e, st) = exp [] (e, st)
adamc@815 1322 in
adamc@815 1323 ((DVal (x, n, t, e, s), loc), st)
adamc@815 1324 end
adamc@815 1325 | DValRec vis =>
adamc@815 1326 let
adamc@815 1327 val (vis, st) = ListUtil.foldlMap (fn ((x, n, t, e, s), st) =>
adamc@815 1328 let
adamc@815 1329 val (e, st) = exp [] (e, st)
adamc@815 1330 in
adamc@815 1331 ((x, n, t, e, s), st)
adamc@815 1332 end) st vis
adamc@815 1333 in
adamc@815 1334 ((DValRec vis, loc), st)
adamc@815 1335 end
adamc@815 1336 | _ => (d, st)
adamc@567 1337
adamc@567 1338 fun doDecl (d, st) =
adamc@567 1339 let
adamc@815 1340 (*val () = Print.preface ("doDecl", MonoPrint.p_decl MonoEnv.empty d)*)
adamc@815 1341 val (d, st) = decl (d, st)
adamc@840 1342
adamc@840 1343 val ds =
adamc@840 1344 case #decls st of
adamc@840 1345 [] => [d]
adamc@840 1346 | vis => [(DValRec vis, #2 d), d]
adamc@567 1347 in
adamc@840 1348 (ds,
adamc@567 1349 {decls = [],
adamc@589 1350 script = #script st,
adamc@595 1351 included = #included st,
adamc@595 1352 injectors = #injectors st,
adamc@800 1353 listInjectors = #listInjectors st,
adamc@638 1354 decoders = #decoders st,
adamc@595 1355 maxName = #maxName st})
adamc@567 1356 end
adamc@567 1357
adamc@567 1358 val (ds, st) = ListUtil.foldlMapConcat doDecl
adamc@567 1359 {decls = [],
adamc@589 1360 script = [],
adamc@595 1361 included = IS.empty,
adamc@595 1362 injectors = IM.empty,
adamc@800 1363 listInjectors = TM.empty,
adamc@638 1364 decoders = IM.empty,
adamc@595 1365 maxName = U.File.maxName file + 1}
adamc@815 1366 file
adamc@569 1367
adamc@569 1368 val inf = TextIO.openIn (OS.Path.joinDirFile {dir = Config.libJs, file = "urweb.js"})
adamc@569 1369 fun lines acc =
adamc@569 1370 case TextIO.inputLine inf of
adamc@569 1371 NONE => String.concat (rev acc)
adamc@569 1372 | SOME line => lines (line :: acc)
adamc@569 1373 val lines = lines []
adamc@794 1374
adamc@794 1375 val script =
adamc@794 1376 if !foundJavaScript then
adamc@794 1377 lines ^ String.concat (rev (#script st))
adamc@794 1378 else
adamc@794 1379 ""
adamc@567 1380 in
adamc@569 1381 TextIO.closeIn inf;
adamc@794 1382 (DJavaScript script, ErrorMsg.dummySpan) :: ds
adamc@567 1383 end
adamc@567 1384
adamc@567 1385 end