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Tutorial: up to First-Class Polymorphism
author Adam Chlipala <adam@chlipala.net>
date Sun, 17 Jul 2011 11:00:04 -0400
parents 290de2dcecf6
children 94ef0b07066a
rev   line source
adam@1487 1 (* Copyright (c) 2008-2011, 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@568 54 fun strcat loc es =
adamc@568 55 case es of
adamc@568 56 [] => (EPrim (Prim.String ""), loc)
adamc@568 57 | [x] => x
adamc@568 58 | x :: es' => (EStrcat (x, strcat loc es'), loc)
adamc@568 59
adamc@815 60 exception CantEmbed of typ
adamc@815 61
adamc@970 62 fun inString {needle, haystack} = String.isSubstring needle haystack
adamc@847 63
adamc@589 64 fun process file =
adamc@567 65 let
adamc@596 66 val (someTs, nameds) =
adamc@596 67 foldl (fn ((DVal (_, n, t, e, _), _), (someTs, nameds)) => (someTs, IM.insert (nameds, n, e))
adamc@596 68 | ((DValRec vis, _), (someTs, nameds)) =>
adamc@596 69 (someTs, foldl (fn ((_, n, _, e, _), nameds) => IM.insert (nameds, n, e))
adamc@596 70 nameds vis)
adamc@808 71 | ((DDatatype dts, _), state as (someTs, nameds)) =>
adamc@808 72 (foldl (fn ((_, _, cs), someTs) =>
adamc@808 73 if ElabUtil.classifyDatatype cs = Option then
adamc@808 74 foldl (fn ((_, n, SOME t), someTs) => IM.insert (someTs, n, t)
adamc@808 75 | (_, someTs) => someTs) someTs cs
adamc@808 76 else
adamc@808 77 someTs) someTs dts,
adamc@808 78 nameds)
adamc@595 79 | (_, state) => state)
adamc@596 80 (IM.empty, IM.empty) file
adamc@567 81
adamc@590 82 fun str loc s = (EPrim (Prim.String s), loc)
adamc@590 83
adamc@594 84 fun isNullable (t, _) =
adamc@594 85 case t of
adamc@594 86 TOption _ => true
adamc@841 87 | TList _ => true
adamc@841 88 | TDatatype (_, ref (Option, _)) => true
adamc@594 89 | TRecord [] => true
adamc@594 90 | _ => false
adamc@594 91
adamc@593 92 fun quoteExp loc (t : typ) (e, st) =
adamc@590 93 case #1 t of
adam@1446 94 TSource => ((EFfiApp ("Basis", "htmlifySource", [e]), loc), st)
adamc@590 95
adamc@593 96 | TRecord [] => (str loc "null", st)
adamc@593 97 | TRecord [(x, t)] =>
adamc@593 98 let
adamc@593 99 val (e, st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 100 in
adamc@593 101 (strcat loc [str loc ("{_" ^ x ^ ":"),
adamc@593 102 e,
adamc@593 103 str loc "}"], st)
adamc@593 104 end
adamc@593 105 | TRecord ((x, t) :: xts) =>
adamc@593 106 let
adamc@593 107 val (e', st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 108 val (es, st) = ListUtil.foldlMap
adamc@593 109 (fn ((x, t), st) =>
adamc@593 110 let
adamc@593 111 val (e, st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 112 in
adamc@593 113 (strcat loc [str loc (",_" ^ x ^ ":"), e], st)
adamc@593 114 end)
adamc@593 115 st xts
adamc@593 116 in
adamc@593 117 (strcat loc (str loc ("{_" ^ x ^ ":")
adamc@593 118 :: e'
adamc@593 119 :: es
adamc@593 120 @ [str loc "}"]), st)
adamc@593 121 end
adamc@590 122
adamc@593 123 | TFfi ("Basis", "string") => ((EFfiApp ("Basis", "jsifyString", [e]), loc), st)
adamc@1025 124 | TFfi ("Basis", "char") => ((EFfiApp ("Basis", "jsifyChar", [e]), loc), st)
adamc@593 125 | TFfi ("Basis", "int") => ((EFfiApp ("Basis", "htmlifyInt", [e]), loc), st)
adamc@593 126 | TFfi ("Basis", "float") => ((EFfiApp ("Basis", "htmlifyFloat", [e]), loc), st)
adamc@682 127 | TFfi ("Basis", "channel") => ((EFfiApp ("Basis", "jsifyChannel", [e]), loc), st)
adam@1360 128 | TFfi ("Basis", "time") => ((EFfiApp ("Basis", "jsifyTime", [e]), loc), st)
adamc@593 129
adamc@593 130 | TFfi ("Basis", "bool") => ((ECase (e,
adamc@593 131 [((PCon (Enum, PConFfi {mod = "Basis",
adamc@593 132 datatyp = "bool",
adamc@593 133 con = "True",
adamc@593 134 arg = NONE}, NONE), loc),
adamc@593 135 str loc "true"),
adamc@593 136 ((PCon (Enum, PConFfi {mod = "Basis",
adamc@593 137 datatyp = "bool",
adamc@593 138 con = "False",
adamc@593 139 arg = NONE}, NONE), loc),
adamc@593 140 str loc "false")],
adamc@593 141 {disc = (TFfi ("Basis", "bool"), loc),
adamc@593 142 result = (TFfi ("Basis", "string"), loc)}), loc),
adamc@593 143 st)
adamc@592 144
adamc@594 145 | TOption t =>
adamc@594 146 let
adamc@594 147 val (e', st) = quoteExp loc t ((ERel 0, loc), st)
adamc@594 148 in
adamc@813 149 (case #1 e' of
adamc@813 150 EPrim (Prim.String "ERROR") => raise Fail "UHOH"
adamc@813 151 | _ =>
adamc@813 152 (ECase (e,
adamc@813 153 [((PNone t, loc),
adamc@813 154 str loc "null"),
adamc@813 155 ((PSome (t, (PVar ("x", t), loc)), loc),
adamc@813 156 if isNullable t then
adamc@813 157 strcat loc [str loc "{v:", e', str loc "}"]
adamc@813 158 else
adamc@813 159 e')],
adamc@813 160 {disc = (TOption t, loc),
adamc@813 161 result = (TFfi ("Basis", "string"), loc)}), loc),
adamc@594 162 st)
adamc@594 163 end
adamc@594 164
adamc@800 165 | TList t' =>
adamc@800 166 (case TM.find (#listInjectors st, t') of
adamc@800 167 SOME n' => ((EApp ((ENamed n', loc), e), loc), st)
adamc@800 168 | NONE =>
adamc@800 169 let
adamc@800 170 val rt = (TRecord [("1", t'), ("2", t)], loc)
adamc@800 171
adamc@800 172 val n' = #maxName st
adamc@800 173 val st = {decls = #decls st,
adamc@800 174 script = #script st,
adamc@800 175 included = #included st,
adamc@800 176 injectors = #injectors st,
adamc@800 177 listInjectors = TM.insert (#listInjectors st, t', n'),
adamc@800 178 decoders = #decoders st,
adamc@800 179 maxName = n' + 1}
adamc@800 180
adamc@800 181 val s = (TFfi ("Basis", "string"), loc)
adamc@801 182 val (e', st) = quoteExp loc t' ((EField ((ERel 0, loc), "1"), loc), st)
adamc@800 183
adamc@800 184 val body = (ECase ((ERel 0, loc),
adamc@800 185 [((PNone rt, loc),
adamc@800 186 str loc "null"),
adamc@800 187 ((PSome (rt, (PVar ("x", rt), loc)), loc),
adamc@911 188 strcat loc [str loc ((if isNullable t' then
adamc@911 189 "{v:"
adamc@911 190 else
adamc@911 191 "") ^ "{_1:"),
adamc@800 192 e',
adamc@800 193 str loc ",_2:",
adamc@800 194 (EApp ((ENamed n', loc),
adamc@800 195 (EField ((ERel 0, loc), "2"), loc)), loc),
adamc@911 196 str loc ((if isNullable t' then
adamc@911 197 "}"
adamc@911 198 else
adamc@911 199 "") ^ "}")])],
adamc@800 200 {disc = t, result = s}), loc)
adamc@800 201 val body = (EAbs ("x", t, s, body), loc)
adamc@800 202
adamc@840 203 val st = {decls = ("jsify", n', (TFun (t, s), loc),
adamc@840 204 body, "jsify") :: #decls st,
adamc@800 205 script = #script st,
adamc@800 206 included = #included st,
adamc@800 207 injectors = #injectors st,
adamc@800 208 listInjectors = #listInjectors st,
adamc@800 209 decoders= #decoders st,
adamc@800 210 maxName = #maxName st}
adamc@800 211
adamc@800 212
adamc@800 213 in
adamc@800 214 ((EApp ((ENamed n', loc), e), loc), st)
adamc@800 215 end)
adamc@800 216
adamc@595 217 | TDatatype (n, ref (dk, cs)) =>
adamc@595 218 (case IM.find (#injectors st, n) of
adamc@595 219 SOME n' => ((EApp ((ENamed n', loc), e), loc), st)
adamc@595 220 | NONE =>
adamc@595 221 let
adamc@595 222 val n' = #maxName st
adamc@595 223 val st = {decls = #decls st,
adamc@595 224 script = #script st,
adamc@595 225 included = #included st,
adamc@595 226 injectors = IM.insert (#injectors st, n, n'),
adamc@800 227 listInjectors = #listInjectors st,
adamc@638 228 decoders = #decoders st,
adamc@595 229 maxName = n' + 1}
adamc@595 230
adamc@595 231 val (pes, st) = ListUtil.foldlMap
adamc@595 232 (fn ((_, cn, NONE), st) =>
adamc@595 233 (((PCon (dk, PConVar cn, NONE), loc),
adamc@596 234 case dk of
adamc@596 235 Option => str loc "null"
adamc@596 236 | _ => str loc (Int.toString cn)),
adamc@595 237 st)
adamc@595 238 | ((_, cn, SOME t), st) =>
adamc@595 239 let
adamc@595 240 val (e, st) = quoteExp loc t ((ERel 0, loc), st)
adamc@595 241 in
adamc@595 242 (((PCon (dk, PConVar cn, SOME (PVar ("x", t), loc)), loc),
adamc@596 243 case dk of
adamc@596 244 Option =>
adamc@596 245 if isNullable t then
adamc@638 246 strcat loc [str loc "{v:",
adamc@596 247 e,
adamc@596 248 str loc "}"]
adamc@596 249 else
adamc@596 250 e
adamc@597 251 | _ => strcat loc [str loc ("{n:" ^ Int.toString cn
adamc@597 252 ^ ",v:"),
adamc@597 253 e,
adamc@597 254 str loc "}"]),
adamc@595 255 st)
adamc@595 256 end)
adamc@595 257 st cs
adamc@595 258
adamc@595 259 val s = (TFfi ("Basis", "string"), loc)
adamc@595 260 val body = (ECase ((ERel 0, loc), pes,
adamc@595 261 {disc = t, result = s}), loc)
adamc@595 262 val body = (EAbs ("x", t, s, body), loc)
adamc@595 263
adamc@840 264 val st = {decls = ("jsify", n', (TFun (t, s), loc),
adamc@840 265 body, "jsify") :: #decls st,
adamc@595 266 script = #script st,
adamc@595 267 included = #included st,
adamc@595 268 injectors = #injectors st,
adamc@800 269 listInjectors = #listInjectors st,
adamc@638 270 decoders= #decoders st,
adamc@595 271 maxName = #maxName st}
adamc@595 272 in
adamc@595 273 ((EApp ((ENamed n', loc), e), loc), st)
adamc@595 274 end)
adamc@595 275
adamc@834 276 | _ => ((*Print.prefaces "Can't embed" [("t", MonoPrint.p_typ MonoEnv.empty t)];*)
adamc@834 277 raise CantEmbed t)
adamc@590 278
adamc@613 279 fun unurlifyExp loc (t : typ, st) =
adamc@613 280 case #1 t of
adamc@1323 281 TRecord [] => ("(i++,null)", st)
adamc@1323 282 | TFfi ("Basis", "unit") => ("(i++,null)", st)
adamc@613 283 | TRecord [(x, t)] =>
adamc@613 284 let
adamc@613 285 val (e, st) = unurlifyExp loc (t, st)
adamc@613 286 in
adamc@613 287 ("{_" ^ x ^ ":" ^ e ^ "}",
adamc@613 288 st)
adamc@613 289 end
adamc@613 290 | TRecord ((x, t) :: xts) =>
adamc@613 291 let
adamc@613 292 val (e', st) = unurlifyExp loc (t, st)
adamc@613 293 val (es, st) = ListUtil.foldlMap
adamc@638 294 (fn ((x, t), st) =>
adamc@638 295 let
adamc@638 296 val (e, st) = unurlifyExp loc (t, st)
adamc@638 297 in
adamc@638 298 (",_" ^ x ^ ":" ^ e, st)
adamc@638 299 end)
adamc@638 300 st xts
adamc@613 301 in
adamc@613 302 (String.concat ("{_"
adamc@613 303 :: x
adamc@613 304 :: ":"
adamc@613 305 :: e'
adamc@613 306 :: es
adamc@613 307 @ ["}"]), st)
adamc@613 308 end
adamc@613 309
adamc@679 310 | TFfi ("Basis", "string") => ("uu(t[i++])", st)
adamc@1025 311 | TFfi ("Basis", "char") => ("uu(t[i++])", st)
adamc@613 312 | TFfi ("Basis", "int") => ("parseInt(t[i++])", st)
adam@1404 313 | TFfi ("Basis", "time") => ("parseInt(t[i++])", st)
adamc@613 314 | TFfi ("Basis", "float") => ("parseFloat(t[i++])", st)
adam@1319 315 | TFfi ("Basis", "channel") => ("(t[i++].length > 0 ? parseInt(t[i-1]) : null)", st)
adamc@613 316
adamc@912 317 | TFfi ("Basis", "bool") => ("t[i++] == \"1\"", st)
adamc@613 318
adamc@638 319 | TOption t =>
adamc@613 320 let
adamc@638 321 val (e, st) = unurlifyExp loc (t, st)
adamc@638 322 val e = if isNullable t then
adamc@638 323 "{v:" ^ e ^ "}"
adamc@638 324 else
adamc@638 325 e
adamc@613 326 in
adamc@703 327 ("(t[i++]==\"Some\"?" ^ e ^ ":null)", st)
adamc@638 328 end
adamc@613 329
adamc@905 330 | TList t =>
adamc@905 331 let
adamc@905 332 val (e, st) = unurlifyExp loc (t, st)
adamc@905 333 in
adamc@905 334 ("uul(function(){return t[i++];},function(){return " ^ e ^ "})", st)
adamc@905 335 end
adamc@905 336
adamc@638 337 | TDatatype (n, ref (dk, cs)) =>
adamc@638 338 (case IM.find (#decoders st, n) of
adamc@638 339 SOME n' => ("(tmp=_n" ^ Int.toString n' ^ "(t,i),i=tmp._1,tmp._2)", st)
adamc@613 340 | NONE =>
adamc@613 341 let
adamc@613 342 val n' = #maxName st
adamc@613 343 val st = {decls = #decls st,
adamc@613 344 script = #script st,
adamc@613 345 included = #included st,
adamc@638 346 injectors = #injectors st,
adamc@800 347 listInjectors = #listInjectors st,
adamc@638 348 decoders = IM.insert (#decoders st, n, n'),
adamc@613 349 maxName = n' + 1}
adamc@613 350
adamc@638 351 val (e, st) = foldl (fn ((x, cn, NONE), (e, st)) =>
adamc@638 352 ("x==\"" ^ x ^ "\"?"
adamc@638 353 ^ (case dk of
adamc@638 354 Option => "null"
adamc@638 355 | _ => Int.toString cn)
adamc@638 356 ^ ":" ^ e,
adamc@613 357 st)
adamc@638 358 | ((x, cn, SOME t), (e, st)) =>
adamc@613 359 let
adamc@638 360 val (e', st) = unurlifyExp loc (t, st)
adamc@613 361 in
adamc@638 362 ("x==\"" ^ x ^ "\"?"
adamc@638 363 ^ (case dk of
adamc@638 364 Option =>
adamc@638 365 if isNullable t then
adamc@638 366 "{v:" ^ e' ^ "}"
adamc@638 367 else
adamc@638 368 e'
adamc@638 369 | _ => "{n:" ^ Int.toString cn ^ ",v:" ^ e' ^ "}")
adamc@638 370 ^ ":" ^ e,
adamc@613 371 st)
adamc@613 372 end)
adamc@810 373 ("pf(\"" ^ ErrorMsg.spanToString loc ^ "\")", st) cs
adamc@613 374
adamc@638 375 val body = "function _n" ^ Int.toString n' ^ "(t,i){var x=t[i++];var r="
adamc@638 376 ^ e ^ ";return {_1:i,_2:r}}\n\n"
adamc@613 377
adamc@638 378 val st = {decls = #decls st,
adamc@638 379 script = body :: #script st,
adamc@613 380 included = #included st,
adamc@613 381 injectors = #injectors st,
adamc@800 382 listInjectors = #listInjectors st,
adamc@638 383 decoders = #decoders st,
adamc@613 384 maxName = #maxName st}
adamc@613 385 in
adamc@638 386 ("(tmp=_n" ^ Int.toString n' ^ "(t,i),i=tmp._1,tmp._2)", st)
adamc@638 387 end)
adamc@613 388
adamc@613 389 | _ => (EM.errorAt loc "Don't know how to unurlify type in JavaScript";
adamc@613 390 Print.prefaces "Can't unurlify" [("t", MonoPrint.p_typ MonoEnv.empty t)];
adamc@613 391 ("ERROR", st))
adamc@613 392
adamc@646 393 fun padWith (ch, s, len) =
adamc@646 394 if size s < len then
adamc@646 395 padWith (ch, String.str ch ^ s, len - 1)
adamc@646 396 else
adamc@646 397 s
adamc@646 398
adamc@794 399 val foundJavaScript = ref false
adamc@794 400
adamc@800 401 fun jsExp mode outer =
adamc@567 402 let
adamc@589 403 val len = length outer
adamc@567 404
adamc@589 405 fun jsE inner (e as (_, loc), st) =
adamc@589 406 let
adamc@590 407 val str = str loc
adamc@567 408
adamc@589 409 fun patCon pc =
adamc@589 410 case pc of
adamc@589 411 PConVar n => str (Int.toString n)
adamc@589 412 | PConFfi {mod = "Basis", con = "True", ...} => str "true"
adamc@589 413 | PConFfi {mod = "Basis", con = "False", ...} => str "false"
adamc@970 414 | PConFfi {con, ...} => str ("\"" ^ con ^ "\"")
adamc@567 415
adamc@591 416 fun unsupported s =
adamc@591 417 (EM.errorAt loc (s ^ " in code to be compiled to JavaScript[2]");
adamc@910 418 Print.preface ("Code", MonoPrint.p_exp MonoEnv.empty e);
adamc@591 419 (str "ERROR", st))
adamc@577 420
adamc@589 421 val strcat = strcat loc
adamc@584 422
adamc@589 423 fun jsPrim p =
adamc@943 424 let
adamc@943 425 fun jsChar ch =
adamc@943 426 case ch of
adamc@943 427 #"'" =>
adamc@943 428 if mode = Attribute then
adamc@943 429 "\\047"
adamc@943 430 else
adamc@943 431 "'"
adamc@943 432 | #"\"" => "\\\""
adamc@943 433 | #"<" => "\\074"
adamc@943 434 | #"\\" => "\\\\"
adamc@943 435 | #"\n" => "\\n"
adamc@943 436 | #"\r" => "\\r"
adamc@943 437 | #"\t" => "\\t"
adamc@943 438 | ch =>
adam@1285 439 if Char.isPrint ch orelse ord ch >= 128 then
adamc@943 440 String.str ch
adamc@943 441 else
adamc@943 442 "\\" ^ padWith (#"0",
adamc@943 443 Int.fmt StringCvt.OCT (ord ch),
adamc@943 444 3)
adamc@943 445 in
adamc@943 446 case p of
adamc@943 447 Prim.String s =>
adamc@943 448 str ("\"" ^ String.translate jsChar s ^ "\"")
adamc@1176 449 | Prim.Char ch => str ("\"" ^ jsChar ch ^ "\"")
adamc@943 450 | _ => str (Prim.toString p)
adamc@943 451 end
adamc@589 452
adamc@970 453 fun jsPat (p, _) =
adamc@589 454 case p of
adamc@970 455 PWild => str "{c:\"w\"}"
adamc@970 456 | PVar _ => str "{c:\"v\"}"
adamc@970 457 | PPrim p => strcat [str "{c:\"c\",v:",
adamc@589 458 jsPrim p,
adamc@970 459 str "}"]
adamc@589 460 | PCon (_, PConFfi {mod = "Basis", con = "True", ...}, NONE) =>
adamc@970 461 str "{c:\"c\",v:true}"
adamc@589 462 | PCon (_, PConFfi {mod = "Basis", con = "False", ...}, NONE) =>
adamc@970 463 str "{c:\"c\",v:false}"
adamc@596 464 | PCon (Option, _, NONE) =>
adamc@970 465 str "{c:\"c\",v:null}"
adamc@596 466 | PCon (Option, PConVar n, SOME p) =>
adamc@596 467 (case IM.find (someTs, n) of
adamc@596 468 NONE => raise Fail "Jscomp: Not in someTs"
adamc@974 469 | SOME t =>
adamc@974 470 strcat [str ("{c:\"s\",n:"
adamc@974 471 ^ (if isNullable t then
adamc@974 472 "true"
adamc@974 473 else
adamc@974 474 "false")
adamc@974 475 ^ ",p:"),
adamc@974 476 jsPat p,
adamc@974 477 str "}"])
adamc@974 478 | PCon (_, pc, NONE) => strcat [str "{c:\"c\",v:",
adamc@970 479 patCon pc,
adamc@970 480 str "}"]
adamc@970 481 | PCon (_, pc, SOME p) => strcat [str "{c:\"1\",n:",
adamc@970 482 patCon pc,
adamc@970 483 str ",p:",
adamc@970 484 jsPat p,
adamc@970 485 str "}"]
adamc@970 486 | PRecord xps => strcat [str "{c:\"r\",l:",
adamc@970 487 foldr (fn ((x, p, _), e) =>
adamc@970 488 strcat [str ("cons({n:\"" ^ x ^ "\",p:"),
adamc@970 489 jsPat p,
adamc@970 490 str "},",
adamc@970 491 e,
adamc@970 492 str ")"])
adamc@970 493 (str "null") xps,
adamc@970 494 str "}"]
adamc@970 495 | PNone _ => str "{c:\"c\",v:null}"
adamc@970 496 | PSome (t, p) => strcat [str ("{c:\"s\",n:"
adamc@829 497 ^ (if isNullable t then
adamc@970 498 "true"
adamc@829 499 else
adamc@970 500 "false")
adamc@970 501 ^ ",p:"),
adamc@970 502 jsPat p,
adamc@970 503 str "}"]
adamc@589 504
adamc@601 505 val jsifyString = String.translate (fn #"\"" => "\\\""
adamc@601 506 | #"\\" => "\\\\"
adamc@601 507 | ch => String.str ch)
adamc@601 508
adamc@601 509 fun jsifyStringMulti (n, s) =
adamc@601 510 case n of
adamc@601 511 0 => s
adamc@601 512 | _ => jsifyStringMulti (n - 1, jsifyString s)
adamc@601 513
adamc@601 514 fun deStrcat level (all as (e, _)) =
adamc@589 515 case e of
adamc@601 516 EPrim (Prim.String s) => jsifyStringMulti (level, s)
adamc@601 517 | EStrcat (e1, e2) => deStrcat level e1 ^ deStrcat level e2
adamc@601 518 | EFfiApp ("Basis", "jsifyString", [e]) => "\"" ^ deStrcat (level + 1) e ^ "\""
adamc@601 519 | _ => (Print.prefaces "deStrcat" [("e", MonoPrint.p_exp MonoEnv.empty all)];
adamc@601 520 raise Fail "Jscomp: deStrcat")
adamc@590 521
adamc@590 522 val quoteExp = quoteExp loc
adamc@567 523 in
adamc@801 524 (*Print.prefaces "jsE" [("e", MonoPrint.p_exp MonoEnv.empty e),
adamc@801 525 ("inner", Print.PD.string (Int.toString inner))];*)
adamc@590 526
adamc@589 527 case #1 e of
adamc@970 528 EPrim p => (strcat [str "{c:\"c\",v:",
adamc@970 529 jsPrim p,
adamc@970 530 str "}"],
adamc@970 531 st)
adamc@589 532 | ERel n =>
adamc@589 533 if n < inner then
adamc@970 534 (str ("{c:\"v\",n:" ^ Int.toString n ^ "}"), st)
adamc@589 535 else
adamc@589 536 let
adamc@589 537 val n = n - inner
adamc@813 538 (*val () = Print.prefaces "quote" [("t", MonoPrint.p_typ MonoEnv.empty
adamc@813 539 (List.nth (outer, n)))]*)
adamc@970 540 val (e, st) = quoteExp (List.nth (outer, n)) ((ERel n, loc), st)
adamc@589 541 in
adamc@970 542 (strcat [str "{c:\"c\",v:",
adamc@970 543 e,
adamc@970 544 str "}"], st)
adamc@589 545 end
adamc@567 546
adamc@589 547 | ENamed n =>
adamc@589 548 let
adamc@589 549 val st =
adamc@589 550 if IS.member (#included st, n) then
adamc@589 551 st
adamc@589 552 else
adamc@589 553 case IM.find (nameds, n) of
adamc@589 554 NONE => raise Fail "Jscomp: Unbound ENamed"
adamc@589 555 | SOME e =>
adamc@589 556 let
adamc@589 557 val st = {decls = #decls st,
adamc@589 558 script = #script st,
adamc@595 559 included = IS.add (#included st, n),
adamc@595 560 injectors = #injectors st,
adamc@800 561 listInjectors = #listInjectors st,
adamc@638 562 decoders = #decoders st,
adamc@595 563 maxName = #maxName st}
adamc@578 564
adamc@801 565 val old = e
adamc@970 566 val (e, st) = jsExp mode [] (e, st)
adamc@601 567 val e = deStrcat 0 e
adamc@1262 568 val e = String.translate (fn #"'" => "\\'"
adamc@1262 569 | #"\\" => "\\\\"
adamc@1262 570 | ch => String.str ch) e
adamc@589 571
adamc@1262 572 val sc = "urfuncs[" ^ Int.toString n ^ "] = {c:\"t\",f:'"
adamc@1262 573 ^ e ^ "'};\n"
adamc@589 574 in
adamc@801 575 (*Print.prefaces "jsify'" [("old", MonoPrint.p_exp MonoEnv.empty old),
adamc@801 576 ("new", MonoPrint.p_exp MonoEnv.empty new)];*)
adamc@589 577 {decls = #decls st,
adamc@589 578 script = sc :: #script st,
adamc@595 579 included = #included st,
adamc@595 580 injectors = #injectors st,
adamc@800 581 listInjectors = #listInjectors st,
adamc@638 582 decoders= #decoders st,
adamc@595 583 maxName = #maxName st}
adamc@589 584 end
adamc@589 585 in
adamc@970 586 (str ("{c:\"n\",n:" ^ Int.toString n ^ "}"), st)
adamc@589 587 end
adamc@589 588
adamc@970 589 | ECon (Option, _, NONE) => (str "{c:\"c\",v:null}", st)
adamc@596 590 | ECon (Option, PConVar n, SOME e) =>
adamc@596 591 let
adamc@596 592 val (e, st) = jsE inner (e, st)
adamc@596 593 in
adamc@596 594 case IM.find (someTs, n) of
adamc@596 595 NONE => raise Fail "Jscomp: Not in someTs [2]"
adamc@596 596 | SOME t =>
adamc@596 597 (if isNullable t then
adamc@970 598 strcat [str "{c:\"s\",v:",
adamc@596 599 e,
adamc@596 600 str "}"]
adamc@596 601 else
adamc@596 602 e, st)
adamc@596 603 end
adamc@596 604
adamc@970 605 | ECon (_, pc, NONE) => (strcat [str "{c:\"c\",v:",
adamc@970 606 patCon pc,
adamc@970 607 str "}"],
adamc@970 608 st)
adamc@589 609 | ECon (_, pc, SOME e) =>
adamc@589 610 let
adamc@589 611 val (s, st) = jsE inner (e, st)
adamc@589 612 in
adamc@970 613 (strcat [str "{c:\"1\",n:",
adamc@589 614 patCon pc,
adamc@589 615 str ",v:",
adamc@589 616 s,
adamc@589 617 str "}"], st)
adamc@589 618 end
adamc@596 619
adamc@970 620 | ENone _ => (str "{c:\"c\",v:null}", st)
adamc@589 621 | ESome (t, e) =>
adamc@572 622 let
adamc@572 623 val (e, st) = jsE inner (e, st)
adamc@572 624 in
adamc@589 625 (if isNullable t then
adamc@970 626 strcat [str "{c:\"s\",v:", e, str "}"]
adamc@589 627 else
adamc@589 628 e, st)
adamc@589 629 end
adamc@589 630
adamc@589 631 | EFfi k =>
adamc@589 632 let
adamc@765 633 val name = case Settings.jsFunc k of
adamc@589 634 NONE => (EM.errorAt loc ("Unsupported FFI identifier " ^ #2 k
adamc@589 635 ^ " in JavaScript");
adamc@589 636 "ERROR")
adamc@589 637 | SOME s => s
adamc@589 638 in
adamc@970 639 (str ("{c:\"c\",v:" ^ name ^ "}"), st)
adamc@589 640 end
adamc@970 641 | EFfiApp ("Basis", "sigString", [_]) => (strcat [str "{c:\"c\",v:\"",
adamc@970 642 e,
adamc@970 643 str "\"}"], st)
adamc@589 644 | EFfiApp (m, x, args) =>
adamc@589 645 let
adamc@765 646 val name = case Settings.jsFunc (m, x) of
adamc@589 647 NONE => (EM.errorAt loc ("Unsupported FFI function "
adam@1433 648 ^ m ^ "." ^ x ^ " in JavaScript");
adamc@589 649 "ERROR")
adamc@589 650 | SOME s => s
adamc@970 651
adamc@970 652 val (e, st) = foldr (fn (e, (acc, st)) =>
adamc@970 653 let
adamc@970 654 val (e, st) = jsE inner (e, st)
adamc@970 655 in
adamc@970 656 (strcat [str "cons(",
adamc@970 657 e,
adamc@970 658 str ",",
adamc@970 659 acc,
adamc@970 660 str ")"],
adamc@970 661 st)
adamc@970 662 end)
adamc@970 663 (str "null", st) args
adamc@589 664 in
adamc@1057 665 (strcat [str ("{c:\"f\",f:\"" ^ name ^ "\",a:"),
adamc@970 666 e,
adamc@970 667 str "}"],
adamc@970 668 st)
adamc@589 669 end
adamc@589 670
adamc@589 671 | EApp (e1, e2) =>
adamc@589 672 let
adamc@589 673 val (e1, st) = jsE inner (e1, st)
adamc@589 674 val (e2, st) = jsE inner (e2, st)
adamc@589 675 in
adamc@970 676 (strcat [str "{c:\"a\",f:",
adamc@970 677 e1,
adamc@970 678 str ",x:",
adamc@970 679 e2,
adamc@970 680 str "}"], st)
adamc@589 681 end
adamc@589 682 | EAbs (_, _, _, e) =>
adamc@589 683 let
adamc@589 684 val (e, st) = jsE (inner + 1) (e, st)
adamc@589 685 in
adamc@970 686 (strcat [str "{c:\"l\",b:",
adamc@970 687 e,
adamc@970 688 str "}"], st)
adamc@589 689 end
adamc@589 690
adamc@589 691 | EUnop (s, e) =>
adamc@589 692 let
adamc@970 693 val name = case s of
adamc@970 694 "!" => "not"
adamc@970 695 | "-" => "neg"
adamc@980 696 | _ => raise Fail ("Jscomp: Unknown unary operator " ^ s)
adamc@970 697
adamc@589 698 val (e, st) = jsE inner (e, st)
adamc@589 699 in
adamc@1057 700 (strcat [str ("{c:\"f\",f:\"" ^ name ^ "\",a:cons("),
adamc@572 701 e,
adamc@970 702 str ",null)}"],
adamc@589 703 st)
adamc@589 704 end
adam@1360 705 | EBinop (bi, s, e1, e2) =>
adamc@589 706 let
adamc@970 707 val name = case s of
adamc@970 708 "==" => "eq"
adamc@970 709 | "!strcmp" => "eq"
adamc@970 710 | "+" => "plus"
adamc@970 711 | "-" => "minus"
adamc@970 712 | "*" => "times"
adam@1360 713 | "/" => (case bi of Int => "divInt" | NotInt => "div")
adam@1360 714 | "%" => (case bi of Int => "modInt" | NotInt => "mod")
adamc@970 715 | "<" => "lt"
adamc@970 716 | "<=" => "le"
adamc@980 717 | "strcmp" => "strcmp"
adamc@980 718 | _ => raise Fail ("Jscomp: Unknown binary operator " ^ s)
adamc@729 719
adamc@589 720 val (e1, st) = jsE inner (e1, st)
adamc@589 721 val (e2, st) = jsE inner (e2, st)
adamc@589 722 in
adamc@1057 723 (strcat [str ("{c:\"f\",f:\"" ^ name ^ "\",a:cons("),
adamc@589 724 e1,
adamc@970 725 str ",cons(",
adamc@589 726 e2,
adamc@970 727 str ",null))}"],
adamc@589 728 st)
adamc@589 729 end
adamc@589 730
adamc@970 731 | ERecord [] => (str "{c:\"c\",v:null}", st)
adamc@970 732 | ERecord xes =>
adamc@589 733 let
adamc@589 734 val (es, st) =
adamc@589 735 foldr (fn ((x, e, _), (es, st)) =>
adamc@589 736 let
adamc@589 737 val (e, st) = jsE inner (e, st)
adamc@589 738 in
adamc@973 739 (strcat [str ("cons({n:\"" ^ x ^ "\",v:"),
adamc@970 740 e,
adamc@970 741 str "},",
adamc@970 742 es,
adamc@970 743 str ")"],
adamc@589 744 st)
adamc@589 745 end)
adamc@970 746 (str "null", st) xes
adamc@589 747 in
adamc@970 748 (strcat [str "{c:\"r\",l:",
adamc@970 749 es,
adamc@970 750 str "}"],
adamc@589 751 st)
adamc@589 752 end
adamc@934 753 | EField (e', x) =>
adamc@589 754 let
adamc@934 755 fun default () =
adamc@934 756 let
adamc@934 757 val (e', st) = jsE inner (e', st)
adamc@934 758 in
adamc@970 759 (strcat [str "{c:\".\",r:",
adamc@970 760 e',
adamc@970 761 str (",f:\"" ^ x ^ "\"}")], st)
adamc@934 762 end
adamc@934 763
adamc@934 764 fun seek (e, xs) =
adamc@934 765 case #1 e of
adamc@934 766 ERel n =>
adamc@934 767 if n < inner then
adamc@934 768 default ()
adamc@934 769 else
adamc@934 770 let
adamc@934 771 val n = n - inner
adamc@934 772 val t = List.nth (outer, n)
adamc@934 773 val t = foldl (fn (x, (TRecord xts, _)) =>
adamc@934 774 (case List.find (fn (x', _) => x' = x) xts of
adamc@934 775 NONE => raise Fail "Jscomp: Bad seek [1]"
adamc@934 776 | SOME (_, t) => t)
adamc@934 777 | _ => raise Fail "Jscomp: Bad seek [2]")
adamc@934 778 t xs
adamc@934 779
adamc@934 780 val e = (ERel n, loc)
adamc@934 781 val e = foldl (fn (x, e) => (EField (e, x), loc)) e xs
adamc@970 782 val (e, st) = quoteExp t (e, st)
adamc@934 783 in
adamc@970 784 (strcat [str "{c:\"c\",v:",
adamc@970 785 e,
adamc@970 786 str "}"],
adamc@970 787 st)
adamc@934 788 end
adamc@934 789 | EField (e', x) => seek (e', x :: xs)
adamc@934 790 | _ => default ()
adamc@589 791 in
adamc@934 792 seek (e', [x])
adamc@934 793 end
adamc@589 794
adamc@970 795 | ECase (e', pes, _) =>
adamc@801 796 let
adamc@970 797 val (e', st) = jsE inner (e', st)
adamc@589 798
adamc@970 799 val (ps, st) =
adamc@970 800 foldr (fn ((p, e), (ps, st)) =>
adamc@970 801 let
adamc@974 802 val (e, st) = jsE (inner + E.patBindsN p) (e, st)
adamc@970 803 in
adamc@970 804 (strcat [str "cons({p:",
adamc@970 805 jsPat p,
adamc@970 806 str ",b:",
adamc@970 807 e,
adamc@970 808 str "},",
adamc@970 809 ps,
adamc@970 810 str ")"],
adamc@970 811 st)
adamc@970 812 end)
adamc@970 813 (str "null", st) pes
adamc@801 814 in
adamc@970 815 (strcat [str "{c:\"m\",e:",
adamc@974 816 e',
adamc@970 817 str ",p:",
adamc@970 818 ps,
adamc@970 819 str "}"], st)
adamc@801 820 end
adamc@589 821
adamc@589 822 | EStrcat (e1, e2) =>
adamc@589 823 let
adamc@589 824 val (e1, st) = jsE inner (e1, st)
adamc@589 825 val (e2, st) = jsE inner (e2, st)
adamc@589 826 in
adamc@1057 827 (strcat [str "{c:\"f\",f:\"cat\",a:cons(", e1, str ",cons(", e2, str ",null))}"], st)
adamc@589 828 end
adamc@589 829
adamc@589 830 | EError (e, _) =>
adamc@589 831 let
adamc@589 832 val (e, st) = jsE inner (e, st)
adamc@589 833 in
adamc@1057 834 (strcat [str "{c:\"f\",f:\"er\",a:cons(", e, str ",null)}"],
adamc@589 835 st)
adamc@589 836 end
adamc@589 837
adamc@589 838 | ESeq (e1, e2) =>
adamc@589 839 let
adamc@589 840 val (e1, st) = jsE inner (e1, st)
adamc@589 841 val (e2, st) = jsE inner (e2, st)
adamc@589 842 in
adamc@970 843 (strcat [str "{c:\";\",e1:", e1, str ",e2:", e2, str "}"], st)
adamc@589 844 end
adamc@589 845 | ELet (_, _, e1, e2) =>
adamc@589 846 let
adamc@589 847 val (e1, st) = jsE inner (e1, st)
adamc@589 848 val (e2, st) = jsE (inner + 1) (e2, st)
adamc@589 849 in
adamc@970 850 (strcat [str "{c:\"=\",e1:",
adamc@589 851 e1,
adamc@970 852 str ",e2:",
adamc@589 853 e2,
adamc@970 854 str "}"], st)
adamc@572 855 end
adamc@589 856
adamc@815 857 | EJavaScript (Source _, e) =>
adamc@794 858 (foundJavaScript := true;
adamc@815 859 jsE inner (e, st))
adamc@815 860 | EJavaScript (_, e) =>
adamc@815 861 let
adamc@815 862 val (e, st) = jsE inner (e, st)
adamc@815 863 in
adamc@815 864 foundJavaScript := true;
adamc@970 865 (strcat [str "{c:\"e\",e:",
adamc@970 866 e,
adamc@970 867 str "}"],
adamc@815 868 st)
adamc@815 869 end
adamc@590 870
adamc@970 871 | EWrite _ => unsupported "EWrite"
adamc@589 872 | EClosure _ => unsupported "EClosure"
adamc@589 873 | EQuery _ => unsupported "Query"
adamc@589 874 | EDml _ => unsupported "DML"
adamc@589 875 | ENextval _ => unsupported "Nextval"
adamc@1073 876 | ESetval _ => unsupported "Nextval"
adamc@1112 877 | EReturnBlob _ => unsupported "EReturnBlob"
adam@1385 878
adam@1385 879 | ERedirect (e, _) =>
adam@1385 880 let
adam@1385 881 val (e, st) = jsE inner (e, st)
adam@1385 882 in
adam@1385 883 (strcat [str "{c:\"f\",f:\"redirect\",a:cons(",
adam@1385 884 e,
adam@1385 885 str ",null)}"],
adam@1385 886 st)
adam@1385 887 end
adam@1385 888
adamc@1112 889 | EUnurlify (_, _, true) => unsupported "EUnurlify"
adamc@590 890
adamc@1112 891 | EUnurlify (e, t, false) =>
adamc@1111 892 let
adamc@1111 893 val (e, st) = jsE inner (e, st)
adamc@1111 894 val (e', st) = unurlifyExp loc (t, st)
adamc@1111 895 in
adamc@1111 896 (strcat [str ("{c:\"f\",f:\"unurlify\",a:cons({c:\"c\",v:function(s){var t=s.split(\"/\");var i=0;return "
adamc@1111 897 ^ e' ^ "}},cons("),
adamc@1111 898 e,
adamc@1111 899 str ",null))}"],
adamc@1111 900 st)
adamc@1111 901 end
adamc@1111 902
adamc@589 903 | ESignalReturn e =>
adamc@572 904 let
adamc@572 905 val (e, st) = jsE inner (e, st)
adamc@572 906 in
adamc@1057 907 (strcat [str "{c:\"f\",f:\"sr\",a:cons(",
adamc@589 908 e,
adamc@970 909 str ",null)}"],
adamc@589 910 st)
adamc@589 911 end
adamc@589 912 | ESignalBind (e1, e2) =>
adamc@589 913 let
adamc@589 914 val (e1, st) = jsE inner (e1, st)
adamc@589 915 val (e2, st) = jsE inner (e2, st)
adamc@589 916 in
adamc@1057 917 (strcat [str "{c:\"f\",f:\"sb\",a:cons(",
adamc@589 918 e1,
adamc@976 919 str ",cons(",
adamc@589 920 e2,
adamc@976 921 str ",null))}"],
adamc@589 922 st)
adamc@589 923 end
adamc@589 924 | ESignalSource e =>
adamc@589 925 let
adamc@589 926 val (e, st) = jsE inner (e, st)
adamc@589 927 in
adamc@1057 928 (strcat [str "{c:\"f\",f:\"ss\",a:cons(",
adamc@589 929 e,
adamc@970 930 str ",null)}"],
adamc@589 931 st)
adamc@572 932 end
adamc@608 933
adamc@1020 934 | EServerCall (e, t, eff) =>
adamc@609 935 let
adamc@614 936 val (e, st) = jsE inner (e, st)
adamc@613 937 val (unurl, st) = unurlifyExp loc (t, st)
adamc@609 938 in
adamc@1057 939 (strcat [str ("{c:\"f\",f:\"rc\",a:cons({c:\"c\",v:\""
adamc@970 940 ^ Settings.getUrlPrefix ()
adamc@970 941 ^ "\"},cons("),
adamc@614 942 e,
adamc@970 943 str (",cons({c:\"c\",v:function(s){var t=s.split(\"/\");var i=0;return "
adamc@1020 944 ^ unurl ^ "}},cons({c:\"K\"},cons({c:\"c\",v:"
adamc@736 945 ^ (case eff of
adamc@736 946 ReadCookieWrite => "true"
adamc@736 947 | _ => "false")
adamc@978 948 ^ "},null)))))}")],
adamc@609 949 st)
adamc@609 950 end
adamc@670 951
adamc@1021 952 | ERecv (e, t) =>
adamc@670 953 let
adamc@670 954 val (e, st) = jsE inner (e, st)
adamc@670 955 val (unurl, st) = unurlifyExp loc (t, st)
adamc@670 956 in
adamc@1057 957 (strcat [str ("{c:\"f\",f:\"rv\",a:cons("),
adamc@670 958 e,
adamc@970 959 str (",cons({c:\"c\",v:function(s){var t=s.split(\"/\");var i=0;return "
adamc@1021 960 ^ unurl ^ "}},cons({c:\"K\"},null)))}")],
adamc@670 961 st)
adamc@670 962 end
adamc@695 963
adamc@1021 964 | ESleep e =>
adamc@695 965 let
adamc@695 966 val (e, st) = jsE inner (e, st)
adamc@695 967 in
adamc@1057 968 (strcat [str "{c:\"f\",f:\"sl\",a:cons(",
adamc@978 969 e,
adamc@1021 970 str ",cons({c:\"K\"},null))}"],
adamc@1021 971 st)
adamc@1021 972 end
adamc@1021 973
adamc@1021 974 | ESpawn e =>
adamc@1021 975 let
adamc@1021 976 val (e, st) = jsE inner (e, st)
adamc@1021 977 in
adamc@1057 978 (strcat [str "{c:\"f\",f:\"sp\",a:cons(",
adamc@1021 979 e,
adamc@1021 980 str ",null)}"],
adamc@695 981 st)
adamc@695 982 end
adamc@567 983 end
adamc@589 984 in
adamc@970 985 jsE 0
adamc@589 986 end
adamc@567 987
adamc@815 988 fun patBinds ((p, _), env) =
adamc@815 989 case p of
adamc@815 990 PWild => env
adamc@815 991 | PVar (_, t) => t :: env
adamc@815 992 | PPrim _ => env
adamc@815 993 | PCon (_, _, NONE) => env
adamc@815 994 | PCon (_, _, SOME p) => patBinds (p, env)
adamc@815 995 | PRecord xpts => foldl (fn ((_, p, _), env) => patBinds (p, env)) env xpts
adamc@815 996 | PNone _ => env
adamc@815 997 | PSome (_, p) => patBinds (p, env)
adamc@815 998
adamc@815 999 fun exp outer (e as (_, loc), st) =
adamc@815 1000 ((*Print.preface ("exp", MonoPrint.p_exp MonoEnv.empty e);*)
adamc@815 1001 case #1 e of
adamc@847 1002 EPrim p =>
adamc@847 1003 (case p of
adamc@847 1004 Prim.String s => if inString {needle = "<script", haystack = s} then
adamc@847 1005 foundJavaScript := true
adamc@847 1006 else
adamc@847 1007 ()
adamc@847 1008 | _ => ();
adamc@847 1009 (e, st))
adamc@815 1010 | ERel _ => (e, st)
adamc@815 1011 | ENamed _ => (e, st)
adamc@815 1012 | ECon (_, _, NONE) => (e, st)
adamc@815 1013 | ECon (dk, pc, SOME e) =>
adamc@815 1014 let
adamc@815 1015 val (e, st) = exp outer (e, st)
adamc@815 1016 in
adamc@815 1017 ((ECon (dk, pc, SOME e), loc), st)
adamc@815 1018 end
adamc@815 1019 | ENone _ => (e, st)
adamc@815 1020 | ESome (t, e) =>
adamc@815 1021 let
adamc@815 1022 val (e, st) = exp outer (e, st)
adamc@815 1023 in
adamc@815 1024 ((ESome (t, e), loc), st)
adamc@815 1025 end
adamc@815 1026 | EFfi _ => (e, st)
adamc@815 1027 | EFfiApp (m, x, es) =>
adamc@815 1028 let
adamc@815 1029 val (es, st) = ListUtil.foldlMap (exp outer) st es
adamc@815 1030 in
adamc@815 1031 ((EFfiApp (m, x, es), loc), st)
adamc@815 1032 end
adamc@815 1033 | EApp (e1, e2) =>
adamc@815 1034 let
adamc@815 1035 val (e1, st) = exp outer (e1, st)
adamc@815 1036 val (e2, st) = exp outer (e2, st)
adamc@815 1037 in
adamc@815 1038 ((EApp (e1, e2), loc), st)
adamc@815 1039 end
adamc@815 1040 | EAbs (x, dom, ran, e) =>
adamc@815 1041 let
adamc@815 1042 val (e, st) = exp (dom :: outer) (e, st)
adamc@815 1043 in
adamc@815 1044 ((EAbs (x, dom, ran, e), loc), st)
adamc@815 1045 end
adamc@815 1046
adamc@815 1047 | EUnop (s, e) =>
adamc@815 1048 let
adamc@815 1049 val (e, st) = exp outer (e, st)
adamc@815 1050 in
adamc@815 1051 ((EUnop (s, e), loc), st)
adamc@815 1052 end
adam@1360 1053 | EBinop (bi, s, e1, e2) =>
adamc@815 1054 let
adamc@815 1055 val (e1, st) = exp outer (e1, st)
adamc@815 1056 val (e2, st) = exp outer (e2, st)
adamc@815 1057 in
adam@1360 1058 ((EBinop (bi, s, e1, e2), loc), st)
adamc@815 1059 end
adamc@815 1060
adamc@815 1061 | ERecord xets =>
adamc@815 1062 let
adamc@815 1063 val (xets, st) = ListUtil.foldlMap (fn ((x, e, t), st) =>
adamc@815 1064 let
adamc@815 1065 val (e, st) = exp outer (e, st)
adamc@815 1066 in
adamc@815 1067 ((x, e, t), st)
adamc@815 1068 end) st xets
adamc@815 1069 in
adamc@815 1070 ((ERecord xets, loc), st)
adamc@815 1071 end
adamc@815 1072 | EField (e, s) =>
adamc@815 1073 let
adamc@815 1074 val (e, st) = exp outer (e, st)
adamc@815 1075 in
adamc@815 1076 ((EField (e, s), loc), st)
adamc@815 1077 end
adamc@815 1078
adamc@815 1079 | ECase (e, pes, ts) =>
adamc@815 1080 let
adamc@815 1081 val (e, st) = exp outer (e, st)
adamc@815 1082 val (pes, st) = ListUtil.foldlMap (fn ((p, e), st) =>
adamc@815 1083 let
adamc@815 1084 val (e, st) = exp (patBinds (p, outer)) (e, st)
adamc@815 1085 in
adamc@815 1086 ((p, e), st)
adamc@815 1087 end) st pes
adamc@815 1088 in
adamc@815 1089 ((ECase (e, pes, ts), loc), st)
adamc@815 1090 end
adamc@815 1091
adamc@815 1092 | EStrcat (e1, e2) =>
adamc@815 1093 let
adamc@815 1094 val (e1, st) = exp outer (e1, st)
adamc@815 1095 val (e2, st) = exp outer (e2, st)
adamc@815 1096 in
adamc@815 1097 ((EStrcat (e1, e2), loc), st)
adamc@815 1098 end
adamc@815 1099
adamc@815 1100 | EError (e, t) =>
adamc@815 1101 let
adamc@815 1102 val (e, st) = exp outer (e, st)
adamc@815 1103 in
adamc@815 1104 ((EError (e, t), loc), st)
adamc@815 1105 end
adamc@815 1106 | EReturnBlob {blob, mimeType, t} =>
adamc@815 1107 let
adamc@815 1108 val (blob, st) = exp outer (blob, st)
adamc@815 1109 val (mimeType, st) = exp outer (mimeType, st)
adamc@815 1110 in
adamc@815 1111 ((EReturnBlob {blob = blob, mimeType = mimeType, t = t}, loc), st)
adamc@815 1112 end
adamc@1065 1113 | ERedirect (e, t) =>
adamc@1065 1114 let
adamc@1065 1115 val (e, st) = exp outer (e, st)
adamc@1065 1116 in
adamc@1065 1117 ((ERedirect (e, t), loc), st)
adamc@1065 1118 end
adamc@815 1119
adamc@815 1120 | EWrite e =>
adamc@815 1121 let
adamc@815 1122 val (e, st) = exp outer (e, st)
adamc@815 1123 in
adamc@815 1124 ((EWrite e, loc), st)
adamc@815 1125 end
adamc@815 1126 | ESeq (e1, e2) =>
adamc@815 1127 let
adamc@815 1128 val (e1, st) = exp outer (e1, st)
adamc@815 1129 val (e2, st) = exp outer (e2, st)
adamc@815 1130 in
adamc@815 1131 ((ESeq (e1, e2), loc), st)
adamc@815 1132 end
adamc@815 1133 | ELet (x, t, e1, e2) =>
adamc@815 1134 let
adamc@815 1135 val (e1, st) = exp outer (e1, st)
adamc@815 1136 val (e2, st) = exp (t :: outer) (e2, st)
adamc@815 1137 in
adamc@815 1138 ((ELet (x, t, e1, e2), loc), st)
adamc@815 1139 end
adamc@815 1140
adamc@815 1141 | EClosure (n, es) =>
adamc@815 1142 let
adamc@815 1143 val (es, st) = ListUtil.foldlMap (exp outer) st es
adamc@815 1144 in
adamc@815 1145 ((EClosure (n, es), loc), st)
adamc@815 1146 end
adamc@815 1147
adamc@815 1148 | EQuery {exps, tables, state, query, body, initial} =>
adamc@815 1149 let
adamc@934 1150 val row = exps @ map (fn (x, xts) => (x, (TRecord xts, loc))) tables
adamc@934 1151 val row = ListMergeSort.sort (fn ((x, _), (y, _)) => String.compare (x, y) = GREATER) row
adamc@934 1152 val row = (TRecord row, loc)
adamc@934 1153
adamc@815 1154 val (query, st) = exp outer (query, st)
adamc@934 1155 val (body, st) = exp (state :: row :: outer) (body, st)
adamc@815 1156 val (initial, st) = exp outer (initial, st)
adamc@815 1157 in
adamc@815 1158 ((EQuery {exps = exps, tables = tables, state = state,
adamc@815 1159 query = query, body = body, initial = initial}, loc), st)
adamc@815 1160 end
adam@1293 1161 | EDml (e, mode) =>
adamc@815 1162 let
adamc@815 1163 val (e, st) = exp outer (e, st)
adamc@815 1164 in
adam@1293 1165 ((EDml (e, mode), loc), st)
adamc@815 1166 end
adamc@815 1167 | ENextval e =>
adamc@815 1168 let
adamc@815 1169 val (e, st) = exp outer (e, st)
adamc@815 1170 in
adamc@815 1171 ((ENextval e, loc), st)
adamc@815 1172 end
adamc@1073 1173 | ESetval (e1, e2) =>
adamc@1073 1174 let
adamc@1073 1175 val (e1, st) = exp outer (e1, st)
adamc@1073 1176 val (e2, st) = exp outer (e2, st)
adamc@1073 1177 in
adamc@1073 1178 ((ESetval (e1, e2), loc), st)
adamc@1073 1179 end
adamc@815 1180
adamc@1112 1181 | EUnurlify (e, t, b) =>
adamc@815 1182 let
adamc@815 1183 val (e, st) = exp outer (e, st)
adamc@815 1184 in
adamc@1112 1185 ((EUnurlify (e, t, b), loc), st)
adamc@815 1186 end
adamc@815 1187
adam@1422 1188 | EJavaScript (m as Source t, e') =>
adam@1422 1189 (foundJavaScript := true;
adam@1422 1190 let
adam@1422 1191 val (x', st) = jsExp m (t :: outer) ((ERel 0, loc), st)
adam@1422 1192 in
adam@1422 1193 ((ELet ("x", t, e', x'), loc), st)
adam@1422 1194 end
adam@1445 1195 handle CantEmbed _ =>
adam@1445 1196 (jsExp m outer (e', st)
adam@1445 1197 handle CantEmbed t => ((*ErrorMsg.errorAt loc "Unable to embed type in JavaScript";
adam@1445 1198 Print.preface ("Type",
adam@1445 1199 MonoPrint.p_typ MonoEnv.empty t);*)
adam@1445 1200 (e, st))))
adam@1422 1201
adamc@815 1202 | EJavaScript (m, e') =>
adamc@970 1203 (foundJavaScript := true;
adamc@970 1204 jsExp m outer (e', st)
adamc@1258 1205 handle CantEmbed t => ((*ErrorMsg.errorAt loc "Unable to embed type in JavaScript";
adamc@1258 1206 Print.preface ("Type",
adamc@1258 1207 MonoPrint.p_typ MonoEnv.empty t);*)
adamc@1176 1208 (e, st)))
adamc@815 1209
adamc@815 1210 | ESignalReturn e =>
adamc@815 1211 let
adamc@815 1212 val (e, st) = exp outer (e, st)
adamc@815 1213 in
adamc@815 1214 ((ESignalReturn e, loc), st)
adamc@815 1215 end
adamc@815 1216 | ESignalBind (e1, e2) =>
adamc@815 1217 let
adamc@815 1218 val (e1, st) = exp outer (e1, st)
adamc@815 1219 val (e2, st) = exp outer (e2, st)
adamc@815 1220 in
adamc@815 1221 ((ESignalBind (e1, e2), loc), st)
adamc@815 1222 end
adamc@815 1223 | ESignalSource e =>
adamc@815 1224 let
adamc@815 1225 val (e, st) = exp outer (e, st)
adamc@815 1226 in
adamc@815 1227 ((ESignalSource e, loc), st)
adamc@815 1228 end
adamc@815 1229
adamc@1020 1230 | EServerCall (e1, t, ef) =>
adamc@815 1231 let
adamc@815 1232 val (e1, st) = exp outer (e1, st)
adamc@815 1233 in
adamc@1020 1234 ((EServerCall (e1, t, ef), loc), st)
adamc@815 1235 end
adamc@1021 1236 | ERecv (e1, t) =>
adamc@815 1237 let
adamc@815 1238 val (e1, st) = exp outer (e1, st)
adamc@815 1239 in
adamc@1021 1240 ((ERecv (e1, t), loc), st)
adamc@815 1241 end
adamc@1021 1242 | ESleep e1 =>
adamc@815 1243 let
adamc@815 1244 val (e1, st) = exp outer (e1, st)
adamc@815 1245 in
adamc@1021 1246 ((ESleep e1, loc), st)
adamc@1021 1247 end
adamc@1021 1248 | ESpawn e1 =>
adamc@1021 1249 let
adamc@1021 1250 val (e1, st) = exp outer (e1, st)
adamc@1021 1251 in
adamc@1021 1252 ((ESpawn e1, loc), st)
adamc@815 1253 end)
adamc@815 1254
adamc@815 1255 fun decl (d as (_, loc), st) =
adamc@815 1256 case #1 d of
adamc@815 1257 DVal (x, n, t, e, s) =>
adamc@815 1258 let
adamc@815 1259 val (e, st) = exp [] (e, st)
adamc@815 1260 in
adamc@815 1261 ((DVal (x, n, t, e, s), loc), st)
adamc@815 1262 end
adamc@815 1263 | DValRec vis =>
adamc@815 1264 let
adamc@815 1265 val (vis, st) = ListUtil.foldlMap (fn ((x, n, t, e, s), st) =>
adamc@815 1266 let
adamc@815 1267 val (e, st) = exp [] (e, st)
adamc@815 1268 in
adamc@815 1269 ((x, n, t, e, s), st)
adamc@815 1270 end) st vis
adamc@815 1271 in
adamc@815 1272 ((DValRec vis, loc), st)
adamc@815 1273 end
adamc@815 1274 | _ => (d, st)
adamc@567 1275
adamc@567 1276 fun doDecl (d, st) =
adamc@567 1277 let
adamc@815 1278 (*val () = Print.preface ("doDecl", MonoPrint.p_decl MonoEnv.empty d)*)
adamc@815 1279 val (d, st) = decl (d, st)
adamc@840 1280
adamc@840 1281 val ds =
adamc@840 1282 case #decls st of
adamc@840 1283 [] => [d]
adamc@840 1284 | vis => [(DValRec vis, #2 d), d]
adamc@567 1285 in
adamc@840 1286 (ds,
adamc@567 1287 {decls = [],
adamc@589 1288 script = #script st,
adamc@595 1289 included = #included st,
adamc@595 1290 injectors = #injectors st,
adamc@800 1291 listInjectors = #listInjectors st,
adamc@638 1292 decoders = #decoders st,
adamc@595 1293 maxName = #maxName st})
adamc@567 1294 end
adamc@567 1295
adamc@567 1296 val (ds, st) = ListUtil.foldlMapConcat doDecl
adamc@567 1297 {decls = [],
adamc@589 1298 script = [],
adamc@595 1299 included = IS.empty,
adamc@595 1300 injectors = IM.empty,
adamc@800 1301 listInjectors = TM.empty,
adamc@638 1302 decoders = IM.empty,
adamc@595 1303 maxName = U.File.maxName file + 1}
adamc@815 1304 file
adamc@569 1305
adamc@569 1306 val inf = TextIO.openIn (OS.Path.joinDirFile {dir = Config.libJs, file = "urweb.js"})
adamc@569 1307 fun lines acc =
adamc@569 1308 case TextIO.inputLine inf of
adamc@569 1309 NONE => String.concat (rev acc)
adamc@569 1310 | SOME line => lines (line :: acc)
adamc@569 1311 val lines = lines []
adamc@794 1312
adamc@1323 1313 val urlRules = foldr (fn (r, s) =>
adamc@1323 1314 "cons({allow:"
adamc@1323 1315 ^ (if #action r = Settings.Allow then "true" else "false")
adamc@1323 1316 ^ ",prefix:"
adamc@1323 1317 ^ (if #kind r = Settings.Prefix then "true" else "false")
adamc@1323 1318 ^ ",pattern:\""
adamc@1323 1319 ^ #pattern r
adamc@1323 1320 ^ "\"},"
adamc@1323 1321 ^ s
adamc@1323 1322 ^ ")") "null" (Settings.getUrlRules ())
adamc@1323 1323
adamc@1323 1324 val urlRules = "urlRules = " ^ urlRules ^ ";\n\n"
adamc@1323 1325
adamc@794 1326 val script =
adamc@794 1327 if !foundJavaScript then
adamc@1323 1328 lines ^ urlRules ^ String.concat (rev (#script st))
adamc@794 1329 else
adamc@794 1330 ""
adamc@567 1331 in
adamc@569 1332 TextIO.closeIn inf;
adamc@794 1333 (DJavaScript script, ErrorMsg.dummySpan) :: ds
adamc@567 1334 end
adamc@567 1335
adamc@567 1336 end