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Clarifying some C FFI details in manual
author Adam Chlipala <adam@chlipala.net>
date Sat, 11 Dec 2010 11:00:05 -0500
parents 0d8bd8ae8417
children 02fc16faecf3
rev   line source
adamc@1177 1 (* Copyright (c) 2008-2010, 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
adamc@593 94 TSource => (strcat loc [str loc "s",
adamc@593 95 (EFfiApp ("Basis", "htmlifyInt", [e]), loc)], st)
adamc@590 96
adamc@593 97 | TRecord [] => (str loc "null", st)
adamc@593 98 | TRecord [(x, t)] =>
adamc@593 99 let
adamc@593 100 val (e, st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 101 in
adamc@593 102 (strcat loc [str loc ("{_" ^ x ^ ":"),
adamc@593 103 e,
adamc@593 104 str loc "}"], st)
adamc@593 105 end
adamc@593 106 | TRecord ((x, t) :: xts) =>
adamc@593 107 let
adamc@593 108 val (e', st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 109 val (es, st) = ListUtil.foldlMap
adamc@593 110 (fn ((x, t), st) =>
adamc@593 111 let
adamc@593 112 val (e, st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 113 in
adamc@593 114 (strcat loc [str loc (",_" ^ x ^ ":"), e], st)
adamc@593 115 end)
adamc@593 116 st xts
adamc@593 117 in
adamc@593 118 (strcat loc (str loc ("{_" ^ x ^ ":")
adamc@593 119 :: e'
adamc@593 120 :: es
adamc@593 121 @ [str loc "}"]), st)
adamc@593 122 end
adamc@590 123
adamc@593 124 | TFfi ("Basis", "string") => ((EFfiApp ("Basis", "jsifyString", [e]), loc), st)
adamc@1025 125 | TFfi ("Basis", "char") => ((EFfiApp ("Basis", "jsifyChar", [e]), loc), st)
adamc@593 126 | TFfi ("Basis", "int") => ((EFfiApp ("Basis", "htmlifyInt", [e]), loc), st)
adamc@593 127 | TFfi ("Basis", "float") => ((EFfiApp ("Basis", "htmlifyFloat", [e]), loc), st)
adamc@682 128 | TFfi ("Basis", "channel") => ((EFfiApp ("Basis", "jsifyChannel", [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)
adamc@613 313 | TFfi ("Basis", "float") => ("parseFloat(t[i++])", st)
adam@1319 314 | TFfi ("Basis", "channel") => ("(t[i++].length > 0 ? parseInt(t[i-1]) : null)", st)
adamc@613 315
adamc@912 316 | TFfi ("Basis", "bool") => ("t[i++] == \"1\"", st)
adamc@613 317
adamc@638 318 | TOption t =>
adamc@613 319 let
adamc@638 320 val (e, st) = unurlifyExp loc (t, st)
adamc@638 321 val e = if isNullable t then
adamc@638 322 "{v:" ^ e ^ "}"
adamc@638 323 else
adamc@638 324 e
adamc@613 325 in
adamc@703 326 ("(t[i++]==\"Some\"?" ^ e ^ ":null)", st)
adamc@638 327 end
adamc@613 328
adamc@905 329 | TList t =>
adamc@905 330 let
adamc@905 331 val (e, st) = unurlifyExp loc (t, st)
adamc@905 332 in
adamc@905 333 ("uul(function(){return t[i++];},function(){return " ^ e ^ "})", st)
adamc@905 334 end
adamc@905 335
adamc@638 336 | TDatatype (n, ref (dk, cs)) =>
adamc@638 337 (case IM.find (#decoders st, n) of
adamc@638 338 SOME n' => ("(tmp=_n" ^ Int.toString n' ^ "(t,i),i=tmp._1,tmp._2)", st)
adamc@613 339 | NONE =>
adamc@613 340 let
adamc@613 341 val n' = #maxName st
adamc@613 342 val st = {decls = #decls st,
adamc@613 343 script = #script st,
adamc@613 344 included = #included st,
adamc@638 345 injectors = #injectors st,
adamc@800 346 listInjectors = #listInjectors st,
adamc@638 347 decoders = IM.insert (#decoders st, n, n'),
adamc@613 348 maxName = n' + 1}
adamc@613 349
adamc@638 350 val (e, st) = foldl (fn ((x, cn, NONE), (e, st)) =>
adamc@638 351 ("x==\"" ^ x ^ "\"?"
adamc@638 352 ^ (case dk of
adamc@638 353 Option => "null"
adamc@638 354 | _ => Int.toString cn)
adamc@638 355 ^ ":" ^ e,
adamc@613 356 st)
adamc@638 357 | ((x, cn, SOME t), (e, st)) =>
adamc@613 358 let
adamc@638 359 val (e', st) = unurlifyExp loc (t, st)
adamc@613 360 in
adamc@638 361 ("x==\"" ^ x ^ "\"?"
adamc@638 362 ^ (case dk of
adamc@638 363 Option =>
adamc@638 364 if isNullable t then
adamc@638 365 "{v:" ^ e' ^ "}"
adamc@638 366 else
adamc@638 367 e'
adamc@638 368 | _ => "{n:" ^ Int.toString cn ^ ",v:" ^ e' ^ "}")
adamc@638 369 ^ ":" ^ e,
adamc@613 370 st)
adamc@613 371 end)
adamc@810 372 ("pf(\"" ^ ErrorMsg.spanToString loc ^ "\")", st) cs
adamc@613 373
adamc@638 374 val body = "function _n" ^ Int.toString n' ^ "(t,i){var x=t[i++];var r="
adamc@638 375 ^ e ^ ";return {_1:i,_2:r}}\n\n"
adamc@613 376
adamc@638 377 val st = {decls = #decls st,
adamc@638 378 script = body :: #script st,
adamc@613 379 included = #included st,
adamc@613 380 injectors = #injectors st,
adamc@800 381 listInjectors = #listInjectors st,
adamc@638 382 decoders = #decoders st,
adamc@613 383 maxName = #maxName st}
adamc@613 384 in
adamc@638 385 ("(tmp=_n" ^ Int.toString n' ^ "(t,i),i=tmp._1,tmp._2)", st)
adamc@638 386 end)
adamc@613 387
adamc@613 388 | _ => (EM.errorAt loc "Don't know how to unurlify type in JavaScript";
adamc@613 389 Print.prefaces "Can't unurlify" [("t", MonoPrint.p_typ MonoEnv.empty t)];
adamc@613 390 ("ERROR", st))
adamc@613 391
adamc@646 392 fun padWith (ch, s, len) =
adamc@646 393 if size s < len then
adamc@646 394 padWith (ch, String.str ch ^ s, len - 1)
adamc@646 395 else
adamc@646 396 s
adamc@646 397
adamc@794 398 val foundJavaScript = ref false
adamc@794 399
adamc@800 400 fun jsExp mode outer =
adamc@567 401 let
adamc@589 402 val len = length outer
adamc@567 403
adamc@589 404 fun jsE inner (e as (_, loc), st) =
adamc@589 405 let
adamc@590 406 val str = str loc
adamc@567 407
adamc@589 408 fun patCon pc =
adamc@589 409 case pc of
adamc@589 410 PConVar n => str (Int.toString n)
adamc@589 411 | PConFfi {mod = "Basis", con = "True", ...} => str "true"
adamc@589 412 | PConFfi {mod = "Basis", con = "False", ...} => str "false"
adamc@970 413 | PConFfi {con, ...} => str ("\"" ^ con ^ "\"")
adamc@567 414
adamc@591 415 fun unsupported s =
adamc@591 416 (EM.errorAt loc (s ^ " in code to be compiled to JavaScript[2]");
adamc@910 417 Print.preface ("Code", MonoPrint.p_exp MonoEnv.empty e);
adamc@591 418 (str "ERROR", st))
adamc@577 419
adamc@589 420 val strcat = strcat loc
adamc@584 421
adamc@589 422 fun jsPrim p =
adamc@943 423 let
adamc@943 424 fun jsChar ch =
adamc@943 425 case ch of
adamc@943 426 #"'" =>
adamc@943 427 if mode = Attribute then
adamc@943 428 "\\047"
adamc@943 429 else
adamc@943 430 "'"
adamc@943 431 | #"\"" => "\\\""
adamc@943 432 | #"<" => "\\074"
adamc@943 433 | #"\\" => "\\\\"
adamc@943 434 | #"\n" => "\\n"
adamc@943 435 | #"\r" => "\\r"
adamc@943 436 | #"\t" => "\\t"
adamc@943 437 | ch =>
adam@1285 438 if Char.isPrint ch orelse ord ch >= 128 then
adamc@943 439 String.str ch
adamc@943 440 else
adamc@943 441 "\\" ^ padWith (#"0",
adamc@943 442 Int.fmt StringCvt.OCT (ord ch),
adamc@943 443 3)
adamc@943 444 in
adamc@943 445 case p of
adamc@943 446 Prim.String s =>
adamc@943 447 str ("\"" ^ String.translate jsChar s ^ "\"")
adamc@1176 448 | Prim.Char ch => str ("\"" ^ jsChar ch ^ "\"")
adamc@943 449 | _ => str (Prim.toString p)
adamc@943 450 end
adamc@589 451
adamc@970 452 fun jsPat (p, _) =
adamc@589 453 case p of
adamc@970 454 PWild => str "{c:\"w\"}"
adamc@970 455 | PVar _ => str "{c:\"v\"}"
adamc@970 456 | PPrim p => strcat [str "{c:\"c\",v:",
adamc@589 457 jsPrim p,
adamc@970 458 str "}"]
adamc@589 459 | PCon (_, PConFfi {mod = "Basis", con = "True", ...}, NONE) =>
adamc@970 460 str "{c:\"c\",v:true}"
adamc@589 461 | PCon (_, PConFfi {mod = "Basis", con = "False", ...}, NONE) =>
adamc@970 462 str "{c:\"c\",v:false}"
adamc@596 463 | PCon (Option, _, NONE) =>
adamc@970 464 str "{c:\"c\",v:null}"
adamc@596 465 | PCon (Option, PConVar n, SOME p) =>
adamc@596 466 (case IM.find (someTs, n) of
adamc@596 467 NONE => raise Fail "Jscomp: Not in someTs"
adamc@974 468 | SOME t =>
adamc@974 469 strcat [str ("{c:\"s\",n:"
adamc@974 470 ^ (if isNullable t then
adamc@974 471 "true"
adamc@974 472 else
adamc@974 473 "false")
adamc@974 474 ^ ",p:"),
adamc@974 475 jsPat p,
adamc@974 476 str "}"])
adamc@974 477 | PCon (_, pc, NONE) => strcat [str "{c:\"c\",v:",
adamc@970 478 patCon pc,
adamc@970 479 str "}"]
adamc@970 480 | PCon (_, pc, SOME p) => strcat [str "{c:\"1\",n:",
adamc@970 481 patCon pc,
adamc@970 482 str ",p:",
adamc@970 483 jsPat p,
adamc@970 484 str "}"]
adamc@970 485 | PRecord xps => strcat [str "{c:\"r\",l:",
adamc@970 486 foldr (fn ((x, p, _), e) =>
adamc@970 487 strcat [str ("cons({n:\"" ^ x ^ "\",p:"),
adamc@970 488 jsPat p,
adamc@970 489 str "},",
adamc@970 490 e,
adamc@970 491 str ")"])
adamc@970 492 (str "null") xps,
adamc@970 493 str "}"]
adamc@970 494 | PNone _ => str "{c:\"c\",v:null}"
adamc@970 495 | PSome (t, p) => strcat [str ("{c:\"s\",n:"
adamc@829 496 ^ (if isNullable t then
adamc@970 497 "true"
adamc@829 498 else
adamc@970 499 "false")
adamc@970 500 ^ ",p:"),
adamc@970 501 jsPat p,
adamc@970 502 str "}"]
adamc@589 503
adamc@601 504 val jsifyString = String.translate (fn #"\"" => "\\\""
adamc@601 505 | #"\\" => "\\\\"
adamc@601 506 | ch => String.str ch)
adamc@601 507
adamc@601 508 fun jsifyStringMulti (n, s) =
adamc@601 509 case n of
adamc@601 510 0 => s
adamc@601 511 | _ => jsifyStringMulti (n - 1, jsifyString s)
adamc@601 512
adamc@601 513 fun deStrcat level (all as (e, _)) =
adamc@589 514 case e of
adamc@601 515 EPrim (Prim.String s) => jsifyStringMulti (level, s)
adamc@601 516 | EStrcat (e1, e2) => deStrcat level e1 ^ deStrcat level e2
adamc@601 517 | EFfiApp ("Basis", "jsifyString", [e]) => "\"" ^ deStrcat (level + 1) e ^ "\""
adamc@601 518 | _ => (Print.prefaces "deStrcat" [("e", MonoPrint.p_exp MonoEnv.empty all)];
adamc@601 519 raise Fail "Jscomp: deStrcat")
adamc@590 520
adamc@590 521 val quoteExp = quoteExp loc
adamc@567 522 in
adamc@801 523 (*Print.prefaces "jsE" [("e", MonoPrint.p_exp MonoEnv.empty e),
adamc@801 524 ("inner", Print.PD.string (Int.toString inner))];*)
adamc@590 525
adamc@589 526 case #1 e of
adamc@970 527 EPrim p => (strcat [str "{c:\"c\",v:",
adamc@970 528 jsPrim p,
adamc@970 529 str "}"],
adamc@970 530 st)
adamc@589 531 | ERel n =>
adamc@589 532 if n < inner then
adamc@970 533 (str ("{c:\"v\",n:" ^ Int.toString n ^ "}"), st)
adamc@589 534 else
adamc@589 535 let
adamc@589 536 val n = n - inner
adamc@813 537 (*val () = Print.prefaces "quote" [("t", MonoPrint.p_typ MonoEnv.empty
adamc@813 538 (List.nth (outer, n)))]*)
adamc@970 539 val (e, st) = quoteExp (List.nth (outer, n)) ((ERel n, loc), st)
adamc@589 540 in
adamc@970 541 (strcat [str "{c:\"c\",v:",
adamc@970 542 e,
adamc@970 543 str "}"], st)
adamc@589 544 end
adamc@567 545
adamc@589 546 | ENamed n =>
adamc@589 547 let
adamc@589 548 val st =
adamc@589 549 if IS.member (#included st, n) then
adamc@589 550 st
adamc@589 551 else
adamc@589 552 case IM.find (nameds, n) of
adamc@589 553 NONE => raise Fail "Jscomp: Unbound ENamed"
adamc@589 554 | SOME e =>
adamc@589 555 let
adamc@589 556 val st = {decls = #decls st,
adamc@589 557 script = #script st,
adamc@595 558 included = IS.add (#included st, n),
adamc@595 559 injectors = #injectors st,
adamc@800 560 listInjectors = #listInjectors st,
adamc@638 561 decoders = #decoders st,
adamc@595 562 maxName = #maxName st}
adamc@578 563
adamc@801 564 val old = e
adamc@970 565 val (e, st) = jsExp mode [] (e, st)
adamc@601 566 val e = deStrcat 0 e
adamc@1262 567 val e = String.translate (fn #"'" => "\\'"
adamc@1262 568 | #"\\" => "\\\\"
adamc@1262 569 | ch => String.str ch) e
adamc@589 570
adamc@1262 571 val sc = "urfuncs[" ^ Int.toString n ^ "] = {c:\"t\",f:'"
adamc@1262 572 ^ e ^ "'};\n"
adamc@589 573 in
adamc@801 574 (*Print.prefaces "jsify'" [("old", MonoPrint.p_exp MonoEnv.empty old),
adamc@801 575 ("new", MonoPrint.p_exp MonoEnv.empty new)];*)
adamc@589 576 {decls = #decls st,
adamc@589 577 script = sc :: #script st,
adamc@595 578 included = #included st,
adamc@595 579 injectors = #injectors st,
adamc@800 580 listInjectors = #listInjectors st,
adamc@638 581 decoders= #decoders st,
adamc@595 582 maxName = #maxName st}
adamc@589 583 end
adamc@589 584 in
adamc@970 585 (str ("{c:\"n\",n:" ^ Int.toString n ^ "}"), st)
adamc@589 586 end
adamc@589 587
adamc@970 588 | ECon (Option, _, NONE) => (str "{c:\"c\",v:null}", st)
adamc@596 589 | ECon (Option, PConVar n, SOME e) =>
adamc@596 590 let
adamc@596 591 val (e, st) = jsE inner (e, st)
adamc@596 592 in
adamc@596 593 case IM.find (someTs, n) of
adamc@596 594 NONE => raise Fail "Jscomp: Not in someTs [2]"
adamc@596 595 | SOME t =>
adamc@596 596 (if isNullable t then
adamc@970 597 strcat [str "{c:\"s\",v:",
adamc@596 598 e,
adamc@596 599 str "}"]
adamc@596 600 else
adamc@596 601 e, st)
adamc@596 602 end
adamc@596 603
adamc@970 604 | ECon (_, pc, NONE) => (strcat [str "{c:\"c\",v:",
adamc@970 605 patCon pc,
adamc@970 606 str "}"],
adamc@970 607 st)
adamc@589 608 | ECon (_, pc, SOME e) =>
adamc@589 609 let
adamc@589 610 val (s, st) = jsE inner (e, st)
adamc@589 611 in
adamc@970 612 (strcat [str "{c:\"1\",n:",
adamc@589 613 patCon pc,
adamc@589 614 str ",v:",
adamc@589 615 s,
adamc@589 616 str "}"], st)
adamc@589 617 end
adamc@596 618
adamc@970 619 | ENone _ => (str "{c:\"c\",v:null}", st)
adamc@589 620 | ESome (t, e) =>
adamc@572 621 let
adamc@572 622 val (e, st) = jsE inner (e, st)
adamc@572 623 in
adamc@589 624 (if isNullable t then
adamc@970 625 strcat [str "{c:\"s\",v:", e, str "}"]
adamc@589 626 else
adamc@589 627 e, st)
adamc@589 628 end
adamc@589 629
adamc@589 630 | EFfi k =>
adamc@589 631 let
adamc@765 632 val name = case Settings.jsFunc k of
adamc@589 633 NONE => (EM.errorAt loc ("Unsupported FFI identifier " ^ #2 k
adamc@589 634 ^ " in JavaScript");
adamc@589 635 "ERROR")
adamc@589 636 | SOME s => s
adamc@589 637 in
adamc@970 638 (str ("{c:\"c\",v:" ^ name ^ "}"), st)
adamc@589 639 end
adamc@970 640 | EFfiApp ("Basis", "sigString", [_]) => (strcat [str "{c:\"c\",v:\"",
adamc@970 641 e,
adamc@970 642 str "\"}"], st)
adamc@589 643 | EFfiApp (m, x, args) =>
adamc@589 644 let
adamc@765 645 val name = case Settings.jsFunc (m, x) of
adamc@589 646 NONE => (EM.errorAt loc ("Unsupported FFI function "
adamc@589 647 ^ x ^ " in JavaScript");
adamc@589 648 "ERROR")
adamc@589 649 | SOME s => s
adamc@970 650
adamc@970 651 val (e, st) = foldr (fn (e, (acc, st)) =>
adamc@970 652 let
adamc@970 653 val (e, st) = jsE inner (e, st)
adamc@970 654 in
adamc@970 655 (strcat [str "cons(",
adamc@970 656 e,
adamc@970 657 str ",",
adamc@970 658 acc,
adamc@970 659 str ")"],
adamc@970 660 st)
adamc@970 661 end)
adamc@970 662 (str "null", st) args
adamc@589 663 in
adamc@1057 664 (strcat [str ("{c:\"f\",f:\"" ^ name ^ "\",a:"),
adamc@970 665 e,
adamc@970 666 str "}"],
adamc@970 667 st)
adamc@589 668 end
adamc@589 669
adamc@589 670 | EApp (e1, e2) =>
adamc@589 671 let
adamc@589 672 val (e1, st) = jsE inner (e1, st)
adamc@589 673 val (e2, st) = jsE inner (e2, st)
adamc@589 674 in
adamc@970 675 (strcat [str "{c:\"a\",f:",
adamc@970 676 e1,
adamc@970 677 str ",x:",
adamc@970 678 e2,
adamc@970 679 str "}"], st)
adamc@589 680 end
adamc@589 681 | EAbs (_, _, _, e) =>
adamc@589 682 let
adamc@589 683 val (e, st) = jsE (inner + 1) (e, st)
adamc@589 684 in
adamc@970 685 (strcat [str "{c:\"l\",b:",
adamc@970 686 e,
adamc@970 687 str "}"], st)
adamc@589 688 end
adamc@589 689
adamc@589 690 | EUnop (s, e) =>
adamc@589 691 let
adamc@970 692 val name = case s of
adamc@970 693 "!" => "not"
adamc@970 694 | "-" => "neg"
adamc@980 695 | _ => raise Fail ("Jscomp: Unknown unary operator " ^ s)
adamc@970 696
adamc@589 697 val (e, st) = jsE inner (e, st)
adamc@589 698 in
adamc@1057 699 (strcat [str ("{c:\"f\",f:\"" ^ name ^ "\",a:cons("),
adamc@572 700 e,
adamc@970 701 str ",null)}"],
adamc@589 702 st)
adamc@589 703 end
adamc@589 704 | EBinop (s, e1, e2) =>
adamc@589 705 let
adamc@970 706 val name = case s of
adamc@970 707 "==" => "eq"
adamc@970 708 | "!strcmp" => "eq"
adamc@970 709 | "+" => "plus"
adamc@970 710 | "-" => "minus"
adamc@970 711 | "*" => "times"
adamc@970 712 | "/" => "div"
adamc@970 713 | "%" => "mod"
adamc@970 714 | "<" => "lt"
adamc@970 715 | "<=" => "le"
adamc@980 716 | "strcmp" => "strcmp"
adamc@980 717 | _ => raise Fail ("Jscomp: Unknown binary operator " ^ s)
adamc@729 718
adamc@589 719 val (e1, st) = jsE inner (e1, st)
adamc@589 720 val (e2, st) = jsE inner (e2, st)
adamc@589 721 in
adamc@1057 722 (strcat [str ("{c:\"f\",f:\"" ^ name ^ "\",a:cons("),
adamc@589 723 e1,
adamc@970 724 str ",cons(",
adamc@589 725 e2,
adamc@970 726 str ",null))}"],
adamc@589 727 st)
adamc@589 728 end
adamc@589 729
adamc@970 730 | ERecord [] => (str "{c:\"c\",v:null}", st)
adamc@970 731 | ERecord xes =>
adamc@589 732 let
adamc@589 733 val (es, st) =
adamc@589 734 foldr (fn ((x, e, _), (es, st)) =>
adamc@589 735 let
adamc@589 736 val (e, st) = jsE inner (e, st)
adamc@589 737 in
adamc@973 738 (strcat [str ("cons({n:\"" ^ x ^ "\",v:"),
adamc@970 739 e,
adamc@970 740 str "},",
adamc@970 741 es,
adamc@970 742 str ")"],
adamc@589 743 st)
adamc@589 744 end)
adamc@970 745 (str "null", st) xes
adamc@589 746 in
adamc@970 747 (strcat [str "{c:\"r\",l:",
adamc@970 748 es,
adamc@970 749 str "}"],
adamc@589 750 st)
adamc@589 751 end
adamc@934 752 | EField (e', x) =>
adamc@589 753 let
adamc@934 754 fun default () =
adamc@934 755 let
adamc@934 756 val (e', st) = jsE inner (e', st)
adamc@934 757 in
adamc@970 758 (strcat [str "{c:\".\",r:",
adamc@970 759 e',
adamc@970 760 str (",f:\"" ^ x ^ "\"}")], st)
adamc@934 761 end
adamc@934 762
adamc@934 763 fun seek (e, xs) =
adamc@934 764 case #1 e of
adamc@934 765 ERel n =>
adamc@934 766 if n < inner then
adamc@934 767 default ()
adamc@934 768 else
adamc@934 769 let
adamc@934 770 val n = n - inner
adamc@934 771 val t = List.nth (outer, n)
adamc@934 772 val t = foldl (fn (x, (TRecord xts, _)) =>
adamc@934 773 (case List.find (fn (x', _) => x' = x) xts of
adamc@934 774 NONE => raise Fail "Jscomp: Bad seek [1]"
adamc@934 775 | SOME (_, t) => t)
adamc@934 776 | _ => raise Fail "Jscomp: Bad seek [2]")
adamc@934 777 t xs
adamc@934 778
adamc@934 779 val e = (ERel n, loc)
adamc@934 780 val e = foldl (fn (x, e) => (EField (e, x), loc)) e xs
adamc@970 781 val (e, st) = quoteExp t (e, st)
adamc@934 782 in
adamc@970 783 (strcat [str "{c:\"c\",v:",
adamc@970 784 e,
adamc@970 785 str "}"],
adamc@970 786 st)
adamc@934 787 end
adamc@934 788 | EField (e', x) => seek (e', x :: xs)
adamc@934 789 | _ => default ()
adamc@589 790 in
adamc@934 791 seek (e', [x])
adamc@934 792 end
adamc@589 793
adamc@970 794 | ECase (e', pes, _) =>
adamc@801 795 let
adamc@970 796 val (e', st) = jsE inner (e', st)
adamc@589 797
adamc@970 798 val (ps, st) =
adamc@970 799 foldr (fn ((p, e), (ps, st)) =>
adamc@970 800 let
adamc@974 801 val (e, st) = jsE (inner + E.patBindsN p) (e, st)
adamc@970 802 in
adamc@970 803 (strcat [str "cons({p:",
adamc@970 804 jsPat p,
adamc@970 805 str ",b:",
adamc@970 806 e,
adamc@970 807 str "},",
adamc@970 808 ps,
adamc@970 809 str ")"],
adamc@970 810 st)
adamc@970 811 end)
adamc@970 812 (str "null", st) pes
adamc@801 813 in
adamc@970 814 (strcat [str "{c:\"m\",e:",
adamc@974 815 e',
adamc@970 816 str ",p:",
adamc@970 817 ps,
adamc@970 818 str "}"], st)
adamc@801 819 end
adamc@589 820
adamc@589 821 | EStrcat (e1, e2) =>
adamc@589 822 let
adamc@589 823 val (e1, st) = jsE inner (e1, st)
adamc@589 824 val (e2, st) = jsE inner (e2, st)
adamc@589 825 in
adamc@1057 826 (strcat [str "{c:\"f\",f:\"cat\",a:cons(", e1, str ",cons(", e2, str ",null))}"], st)
adamc@589 827 end
adamc@589 828
adamc@589 829 | EError (e, _) =>
adamc@589 830 let
adamc@589 831 val (e, st) = jsE inner (e, st)
adamc@589 832 in
adamc@1057 833 (strcat [str "{c:\"f\",f:\"er\",a:cons(", e, str ",null)}"],
adamc@589 834 st)
adamc@589 835 end
adamc@589 836
adamc@589 837 | ESeq (e1, e2) =>
adamc@589 838 let
adamc@589 839 val (e1, st) = jsE inner (e1, st)
adamc@589 840 val (e2, st) = jsE inner (e2, st)
adamc@589 841 in
adamc@970 842 (strcat [str "{c:\";\",e1:", e1, str ",e2:", e2, str "}"], st)
adamc@589 843 end
adamc@589 844 | ELet (_, _, e1, e2) =>
adamc@589 845 let
adamc@589 846 val (e1, st) = jsE inner (e1, st)
adamc@589 847 val (e2, st) = jsE (inner + 1) (e2, st)
adamc@589 848 in
adamc@970 849 (strcat [str "{c:\"=\",e1:",
adamc@589 850 e1,
adamc@970 851 str ",e2:",
adamc@589 852 e2,
adamc@970 853 str "}"], st)
adamc@572 854 end
adamc@589 855
adamc@815 856 | EJavaScript (Source _, e) =>
adamc@794 857 (foundJavaScript := true;
adamc@815 858 jsE inner (e, st))
adamc@815 859 | EJavaScript (_, e) =>
adamc@815 860 let
adamc@815 861 val (e, st) = jsE inner (e, st)
adamc@815 862 in
adamc@815 863 foundJavaScript := true;
adamc@970 864 (strcat [str "{c:\"e\",e:",
adamc@970 865 e,
adamc@970 866 str "}"],
adamc@815 867 st)
adamc@815 868 end
adamc@590 869
adamc@970 870 | EWrite _ => unsupported "EWrite"
adamc@589 871 | EClosure _ => unsupported "EClosure"
adamc@589 872 | EQuery _ => unsupported "Query"
adamc@589 873 | EDml _ => unsupported "DML"
adamc@589 874 | ENextval _ => unsupported "Nextval"
adamc@1073 875 | ESetval _ => unsupported "Nextval"
adamc@1112 876 | EReturnBlob _ => unsupported "EReturnBlob"
adamc@1065 877 | ERedirect _ => unsupported "ERedirect"
adamc@1112 878 | EUnurlify (_, _, true) => unsupported "EUnurlify"
adamc@590 879
adamc@1112 880 | EUnurlify (e, t, false) =>
adamc@1111 881 let
adamc@1111 882 val (e, st) = jsE inner (e, st)
adamc@1111 883 val (e', st) = unurlifyExp loc (t, st)
adamc@1111 884 in
adamc@1111 885 (strcat [str ("{c:\"f\",f:\"unurlify\",a:cons({c:\"c\",v:function(s){var t=s.split(\"/\");var i=0;return "
adamc@1111 886 ^ e' ^ "}},cons("),
adamc@1111 887 e,
adamc@1111 888 str ",null))}"],
adamc@1111 889 st)
adamc@1111 890 end
adamc@1111 891
adamc@589 892 | ESignalReturn e =>
adamc@572 893 let
adamc@572 894 val (e, st) = jsE inner (e, st)
adamc@572 895 in
adamc@1057 896 (strcat [str "{c:\"f\",f:\"sr\",a:cons(",
adamc@589 897 e,
adamc@970 898 str ",null)}"],
adamc@589 899 st)
adamc@589 900 end
adamc@589 901 | ESignalBind (e1, e2) =>
adamc@589 902 let
adamc@589 903 val (e1, st) = jsE inner (e1, st)
adamc@589 904 val (e2, st) = jsE inner (e2, st)
adamc@589 905 in
adamc@1057 906 (strcat [str "{c:\"f\",f:\"sb\",a:cons(",
adamc@589 907 e1,
adamc@976 908 str ",cons(",
adamc@589 909 e2,
adamc@976 910 str ",null))}"],
adamc@589 911 st)
adamc@589 912 end
adamc@589 913 | ESignalSource e =>
adamc@589 914 let
adamc@589 915 val (e, st) = jsE inner (e, st)
adamc@589 916 in
adamc@1057 917 (strcat [str "{c:\"f\",f:\"ss\",a:cons(",
adamc@589 918 e,
adamc@970 919 str ",null)}"],
adamc@589 920 st)
adamc@572 921 end
adamc@608 922
adamc@1020 923 | EServerCall (e, t, eff) =>
adamc@609 924 let
adamc@614 925 val (e, st) = jsE inner (e, st)
adamc@613 926 val (unurl, st) = unurlifyExp loc (t, st)
adamc@609 927 in
adamc@1057 928 (strcat [str ("{c:\"f\",f:\"rc\",a:cons({c:\"c\",v:\""
adamc@970 929 ^ Settings.getUrlPrefix ()
adamc@970 930 ^ "\"},cons("),
adamc@614 931 e,
adamc@970 932 str (",cons({c:\"c\",v:function(s){var t=s.split(\"/\");var i=0;return "
adamc@1020 933 ^ unurl ^ "}},cons({c:\"K\"},cons({c:\"c\",v:"
adamc@736 934 ^ (case eff of
adamc@736 935 ReadCookieWrite => "true"
adamc@736 936 | _ => "false")
adamc@978 937 ^ "},null)))))}")],
adamc@609 938 st)
adamc@609 939 end
adamc@670 940
adamc@1021 941 | ERecv (e, t) =>
adamc@670 942 let
adamc@670 943 val (e, st) = jsE inner (e, st)
adamc@670 944 val (unurl, st) = unurlifyExp loc (t, st)
adamc@670 945 in
adamc@1057 946 (strcat [str ("{c:\"f\",f:\"rv\",a:cons("),
adamc@670 947 e,
adamc@970 948 str (",cons({c:\"c\",v:function(s){var t=s.split(\"/\");var i=0;return "
adamc@1021 949 ^ unurl ^ "}},cons({c:\"K\"},null)))}")],
adamc@670 950 st)
adamc@670 951 end
adamc@695 952
adamc@1021 953 | ESleep e =>
adamc@695 954 let
adamc@695 955 val (e, st) = jsE inner (e, st)
adamc@695 956 in
adamc@1057 957 (strcat [str "{c:\"f\",f:\"sl\",a:cons(",
adamc@978 958 e,
adamc@1021 959 str ",cons({c:\"K\"},null))}"],
adamc@1021 960 st)
adamc@1021 961 end
adamc@1021 962
adamc@1021 963 | ESpawn e =>
adamc@1021 964 let
adamc@1021 965 val (e, st) = jsE inner (e, st)
adamc@1021 966 in
adamc@1057 967 (strcat [str "{c:\"f\",f:\"sp\",a:cons(",
adamc@1021 968 e,
adamc@1021 969 str ",null)}"],
adamc@695 970 st)
adamc@695 971 end
adamc@567 972 end
adamc@589 973 in
adamc@970 974 jsE 0
adamc@589 975 end
adamc@567 976
adamc@815 977 fun patBinds ((p, _), env) =
adamc@815 978 case p of
adamc@815 979 PWild => env
adamc@815 980 | PVar (_, t) => t :: env
adamc@815 981 | PPrim _ => env
adamc@815 982 | PCon (_, _, NONE) => env
adamc@815 983 | PCon (_, _, SOME p) => patBinds (p, env)
adamc@815 984 | PRecord xpts => foldl (fn ((_, p, _), env) => patBinds (p, env)) env xpts
adamc@815 985 | PNone _ => env
adamc@815 986 | PSome (_, p) => patBinds (p, env)
adamc@815 987
adamc@815 988 fun exp outer (e as (_, loc), st) =
adamc@815 989 ((*Print.preface ("exp", MonoPrint.p_exp MonoEnv.empty e);*)
adamc@815 990 case #1 e of
adamc@847 991 EPrim p =>
adamc@847 992 (case p of
adamc@847 993 Prim.String s => if inString {needle = "<script", haystack = s} then
adamc@847 994 foundJavaScript := true
adamc@847 995 else
adamc@847 996 ()
adamc@847 997 | _ => ();
adamc@847 998 (e, st))
adamc@815 999 | ERel _ => (e, st)
adamc@815 1000 | ENamed _ => (e, st)
adamc@815 1001 | ECon (_, _, NONE) => (e, st)
adamc@815 1002 | ECon (dk, pc, SOME e) =>
adamc@815 1003 let
adamc@815 1004 val (e, st) = exp outer (e, st)
adamc@815 1005 in
adamc@815 1006 ((ECon (dk, pc, SOME e), loc), st)
adamc@815 1007 end
adamc@815 1008 | ENone _ => (e, st)
adamc@815 1009 | ESome (t, e) =>
adamc@815 1010 let
adamc@815 1011 val (e, st) = exp outer (e, st)
adamc@815 1012 in
adamc@815 1013 ((ESome (t, e), loc), st)
adamc@815 1014 end
adamc@815 1015 | EFfi _ => (e, st)
adamc@815 1016 | EFfiApp (m, x, es) =>
adamc@815 1017 let
adamc@815 1018 val (es, st) = ListUtil.foldlMap (exp outer) st es
adamc@815 1019 in
adamc@815 1020 ((EFfiApp (m, x, es), loc), st)
adamc@815 1021 end
adamc@815 1022 | EApp (e1, e2) =>
adamc@815 1023 let
adamc@815 1024 val (e1, st) = exp outer (e1, st)
adamc@815 1025 val (e2, st) = exp outer (e2, st)
adamc@815 1026 in
adamc@815 1027 ((EApp (e1, e2), loc), st)
adamc@815 1028 end
adamc@815 1029 | EAbs (x, dom, ran, e) =>
adamc@815 1030 let
adamc@815 1031 val (e, st) = exp (dom :: outer) (e, st)
adamc@815 1032 in
adamc@815 1033 ((EAbs (x, dom, ran, e), loc), st)
adamc@815 1034 end
adamc@815 1035
adamc@815 1036 | EUnop (s, e) =>
adamc@815 1037 let
adamc@815 1038 val (e, st) = exp outer (e, st)
adamc@815 1039 in
adamc@815 1040 ((EUnop (s, e), loc), st)
adamc@815 1041 end
adamc@815 1042 | EBinop (s, e1, e2) =>
adamc@815 1043 let
adamc@815 1044 val (e1, st) = exp outer (e1, st)
adamc@815 1045 val (e2, st) = exp outer (e2, st)
adamc@815 1046 in
adamc@815 1047 ((EBinop (s, e1, e2), loc), st)
adamc@815 1048 end
adamc@815 1049
adamc@815 1050 | ERecord xets =>
adamc@815 1051 let
adamc@815 1052 val (xets, st) = ListUtil.foldlMap (fn ((x, e, t), st) =>
adamc@815 1053 let
adamc@815 1054 val (e, st) = exp outer (e, st)
adamc@815 1055 in
adamc@815 1056 ((x, e, t), st)
adamc@815 1057 end) st xets
adamc@815 1058 in
adamc@815 1059 ((ERecord xets, loc), st)
adamc@815 1060 end
adamc@815 1061 | EField (e, s) =>
adamc@815 1062 let
adamc@815 1063 val (e, st) = exp outer (e, st)
adamc@815 1064 in
adamc@815 1065 ((EField (e, s), loc), st)
adamc@815 1066 end
adamc@815 1067
adamc@815 1068 | ECase (e, pes, ts) =>
adamc@815 1069 let
adamc@815 1070 val (e, st) = exp outer (e, st)
adamc@815 1071 val (pes, st) = ListUtil.foldlMap (fn ((p, e), st) =>
adamc@815 1072 let
adamc@815 1073 val (e, st) = exp (patBinds (p, outer)) (e, st)
adamc@815 1074 in
adamc@815 1075 ((p, e), st)
adamc@815 1076 end) st pes
adamc@815 1077 in
adamc@815 1078 ((ECase (e, pes, ts), loc), st)
adamc@815 1079 end
adamc@815 1080
adamc@815 1081 | EStrcat (e1, e2) =>
adamc@815 1082 let
adamc@815 1083 val (e1, st) = exp outer (e1, st)
adamc@815 1084 val (e2, st) = exp outer (e2, st)
adamc@815 1085 in
adamc@815 1086 ((EStrcat (e1, e2), loc), st)
adamc@815 1087 end
adamc@815 1088
adamc@815 1089 | EError (e, t) =>
adamc@815 1090 let
adamc@815 1091 val (e, st) = exp outer (e, st)
adamc@815 1092 in
adamc@815 1093 ((EError (e, t), loc), st)
adamc@815 1094 end
adamc@815 1095 | EReturnBlob {blob, mimeType, t} =>
adamc@815 1096 let
adamc@815 1097 val (blob, st) = exp outer (blob, st)
adamc@815 1098 val (mimeType, st) = exp outer (mimeType, st)
adamc@815 1099 in
adamc@815 1100 ((EReturnBlob {blob = blob, mimeType = mimeType, t = t}, loc), st)
adamc@815 1101 end
adamc@1065 1102 | ERedirect (e, t) =>
adamc@1065 1103 let
adamc@1065 1104 val (e, st) = exp outer (e, st)
adamc@1065 1105 in
adamc@1065 1106 ((ERedirect (e, t), loc), st)
adamc@1065 1107 end
adamc@815 1108
adamc@815 1109 | EWrite e =>
adamc@815 1110 let
adamc@815 1111 val (e, st) = exp outer (e, st)
adamc@815 1112 in
adamc@815 1113 ((EWrite e, loc), st)
adamc@815 1114 end
adamc@815 1115 | ESeq (e1, e2) =>
adamc@815 1116 let
adamc@815 1117 val (e1, st) = exp outer (e1, st)
adamc@815 1118 val (e2, st) = exp outer (e2, st)
adamc@815 1119 in
adamc@815 1120 ((ESeq (e1, e2), loc), st)
adamc@815 1121 end
adamc@815 1122 | ELet (x, t, e1, e2) =>
adamc@815 1123 let
adamc@815 1124 val (e1, st) = exp outer (e1, st)
adamc@815 1125 val (e2, st) = exp (t :: outer) (e2, st)
adamc@815 1126 in
adamc@815 1127 ((ELet (x, t, e1, e2), loc), st)
adamc@815 1128 end
adamc@815 1129
adamc@815 1130 | EClosure (n, es) =>
adamc@815 1131 let
adamc@815 1132 val (es, st) = ListUtil.foldlMap (exp outer) st es
adamc@815 1133 in
adamc@815 1134 ((EClosure (n, es), loc), st)
adamc@815 1135 end
adamc@815 1136
adamc@815 1137 | EQuery {exps, tables, state, query, body, initial} =>
adamc@815 1138 let
adamc@934 1139 val row = exps @ map (fn (x, xts) => (x, (TRecord xts, loc))) tables
adamc@934 1140 val row = ListMergeSort.sort (fn ((x, _), (y, _)) => String.compare (x, y) = GREATER) row
adamc@934 1141 val row = (TRecord row, loc)
adamc@934 1142
adamc@815 1143 val (query, st) = exp outer (query, st)
adamc@934 1144 val (body, st) = exp (state :: row :: outer) (body, st)
adamc@815 1145 val (initial, st) = exp outer (initial, st)
adamc@815 1146 in
adamc@815 1147 ((EQuery {exps = exps, tables = tables, state = state,
adamc@815 1148 query = query, body = body, initial = initial}, loc), st)
adamc@815 1149 end
adam@1293 1150 | EDml (e, mode) =>
adamc@815 1151 let
adamc@815 1152 val (e, st) = exp outer (e, st)
adamc@815 1153 in
adam@1293 1154 ((EDml (e, mode), loc), st)
adamc@815 1155 end
adamc@815 1156 | ENextval e =>
adamc@815 1157 let
adamc@815 1158 val (e, st) = exp outer (e, st)
adamc@815 1159 in
adamc@815 1160 ((ENextval e, loc), st)
adamc@815 1161 end
adamc@1073 1162 | ESetval (e1, e2) =>
adamc@1073 1163 let
adamc@1073 1164 val (e1, st) = exp outer (e1, st)
adamc@1073 1165 val (e2, st) = exp outer (e2, st)
adamc@1073 1166 in
adamc@1073 1167 ((ESetval (e1, e2), loc), st)
adamc@1073 1168 end
adamc@815 1169
adamc@1112 1170 | EUnurlify (e, t, b) =>
adamc@815 1171 let
adamc@815 1172 val (e, st) = exp outer (e, st)
adamc@815 1173 in
adamc@1112 1174 ((EUnurlify (e, t, b), loc), st)
adamc@815 1175 end
adamc@815 1176
adamc@815 1177 | EJavaScript (m, e') =>
adamc@970 1178 (foundJavaScript := true;
adamc@970 1179 jsExp m outer (e', st)
adamc@1258 1180 handle CantEmbed t => ((*ErrorMsg.errorAt loc "Unable to embed type in JavaScript";
adamc@1258 1181 Print.preface ("Type",
adamc@1258 1182 MonoPrint.p_typ MonoEnv.empty t);*)
adamc@1176 1183 (e, st)))
adamc@815 1184
adamc@815 1185 | ESignalReturn e =>
adamc@815 1186 let
adamc@815 1187 val (e, st) = exp outer (e, st)
adamc@815 1188 in
adamc@815 1189 ((ESignalReturn e, loc), st)
adamc@815 1190 end
adamc@815 1191 | ESignalBind (e1, e2) =>
adamc@815 1192 let
adamc@815 1193 val (e1, st) = exp outer (e1, st)
adamc@815 1194 val (e2, st) = exp outer (e2, st)
adamc@815 1195 in
adamc@815 1196 ((ESignalBind (e1, e2), loc), st)
adamc@815 1197 end
adamc@815 1198 | ESignalSource e =>
adamc@815 1199 let
adamc@815 1200 val (e, st) = exp outer (e, st)
adamc@815 1201 in
adamc@815 1202 ((ESignalSource e, loc), st)
adamc@815 1203 end
adamc@815 1204
adamc@1020 1205 | EServerCall (e1, t, ef) =>
adamc@815 1206 let
adamc@815 1207 val (e1, st) = exp outer (e1, st)
adamc@815 1208 in
adamc@1020 1209 ((EServerCall (e1, t, ef), loc), st)
adamc@815 1210 end
adamc@1021 1211 | ERecv (e1, t) =>
adamc@815 1212 let
adamc@815 1213 val (e1, st) = exp outer (e1, st)
adamc@815 1214 in
adamc@1021 1215 ((ERecv (e1, t), loc), st)
adamc@815 1216 end
adamc@1021 1217 | ESleep e1 =>
adamc@815 1218 let
adamc@815 1219 val (e1, st) = exp outer (e1, st)
adamc@815 1220 in
adamc@1021 1221 ((ESleep e1, loc), st)
adamc@1021 1222 end
adamc@1021 1223 | ESpawn e1 =>
adamc@1021 1224 let
adamc@1021 1225 val (e1, st) = exp outer (e1, st)
adamc@1021 1226 in
adamc@1021 1227 ((ESpawn e1, loc), st)
adamc@815 1228 end)
adamc@815 1229
adamc@815 1230 fun decl (d as (_, loc), st) =
adamc@815 1231 case #1 d of
adamc@815 1232 DVal (x, n, t, e, s) =>
adamc@815 1233 let
adamc@815 1234 val (e, st) = exp [] (e, st)
adamc@815 1235 in
adamc@815 1236 ((DVal (x, n, t, e, s), loc), st)
adamc@815 1237 end
adamc@815 1238 | DValRec vis =>
adamc@815 1239 let
adamc@815 1240 val (vis, st) = ListUtil.foldlMap (fn ((x, n, t, e, s), st) =>
adamc@815 1241 let
adamc@815 1242 val (e, st) = exp [] (e, st)
adamc@815 1243 in
adamc@815 1244 ((x, n, t, e, s), st)
adamc@815 1245 end) st vis
adamc@815 1246 in
adamc@815 1247 ((DValRec vis, loc), st)
adamc@815 1248 end
adamc@815 1249 | _ => (d, st)
adamc@567 1250
adamc@567 1251 fun doDecl (d, st) =
adamc@567 1252 let
adamc@815 1253 (*val () = Print.preface ("doDecl", MonoPrint.p_decl MonoEnv.empty d)*)
adamc@815 1254 val (d, st) = decl (d, st)
adamc@840 1255
adamc@840 1256 val ds =
adamc@840 1257 case #decls st of
adamc@840 1258 [] => [d]
adamc@840 1259 | vis => [(DValRec vis, #2 d), d]
adamc@567 1260 in
adamc@840 1261 (ds,
adamc@567 1262 {decls = [],
adamc@589 1263 script = #script st,
adamc@595 1264 included = #included st,
adamc@595 1265 injectors = #injectors st,
adamc@800 1266 listInjectors = #listInjectors st,
adamc@638 1267 decoders = #decoders st,
adamc@595 1268 maxName = #maxName st})
adamc@567 1269 end
adamc@567 1270
adamc@567 1271 val (ds, st) = ListUtil.foldlMapConcat doDecl
adamc@567 1272 {decls = [],
adamc@589 1273 script = [],
adamc@595 1274 included = IS.empty,
adamc@595 1275 injectors = IM.empty,
adamc@800 1276 listInjectors = TM.empty,
adamc@638 1277 decoders = IM.empty,
adamc@595 1278 maxName = U.File.maxName file + 1}
adamc@815 1279 file
adamc@569 1280
adamc@569 1281 val inf = TextIO.openIn (OS.Path.joinDirFile {dir = Config.libJs, file = "urweb.js"})
adamc@569 1282 fun lines acc =
adamc@569 1283 case TextIO.inputLine inf of
adamc@569 1284 NONE => String.concat (rev acc)
adamc@569 1285 | SOME line => lines (line :: acc)
adamc@569 1286 val lines = lines []
adamc@794 1287
adamc@1323 1288 val urlRules = foldr (fn (r, s) =>
adamc@1323 1289 "cons({allow:"
adamc@1323 1290 ^ (if #action r = Settings.Allow then "true" else "false")
adamc@1323 1291 ^ ",prefix:"
adamc@1323 1292 ^ (if #kind r = Settings.Prefix then "true" else "false")
adamc@1323 1293 ^ ",pattern:\""
adamc@1323 1294 ^ #pattern r
adamc@1323 1295 ^ "\"},"
adamc@1323 1296 ^ s
adamc@1323 1297 ^ ")") "null" (Settings.getUrlRules ())
adamc@1323 1298
adamc@1323 1299 val urlRules = "urlRules = " ^ urlRules ^ ";\n\n"
adamc@1323 1300
adamc@794 1301 val script =
adamc@794 1302 if !foundJavaScript then
adamc@1323 1303 lines ^ urlRules ^ String.concat (rev (#script st))
adamc@794 1304 else
adamc@794 1305 ""
adamc@567 1306 in
adamc@569 1307 TextIO.closeIn inf;
adamc@794 1308 (DJavaScript script, ErrorMsg.dummySpan) :: ds
adamc@567 1309 end
adamc@567 1310
adamc@567 1311 end