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Initial parsing of RPC results
author Adam Chlipala <adamc@hcoop.net>
date Sun, 15 Feb 2009 12:33:41 -0500
parents 56aaa1941dad
children 5891f47d7cff
rev   line source
adamc@567 1 (* Copyright (c) 2008, Adam Chlipala
adamc@567 2 * All rights reserved.
adamc@567 3 *
adamc@567 4 * Redistribution and use in source and binary forms, with or without
adamc@567 5 * modification, are permitted provided that the following conditions are met:
adamc@567 6 *
adamc@567 7 * - Redistributions of source code must retain the above copyright notice,
adamc@567 8 * this list of conditions and the following disclaimer.
adamc@567 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@567 10 * this list of conditions and the following disclaimer in the documentation
adamc@567 11 * and/or other materials provided with the distribution.
adamc@567 12 * - The names of contributors may not be used to endorse or promote products
adamc@567 13 * derived from this software without specific prior written permission.
adamc@567 14 *
adamc@567 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@567 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@567 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@567 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@567 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@567 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@567 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@567 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@567 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@567 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@567 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@567 26 *)
adamc@567 27
adamc@567 28 structure JsComp :> JSCOMP = struct
adamc@567 29
adamc@567 30 open Mono
adamc@567 31
adamc@567 32 structure EM = ErrorMsg
adamc@567 33 structure E = MonoEnv
adamc@567 34 structure U = MonoUtil
adamc@567 35
adamc@589 36 structure IS = IntBinarySet
adamc@589 37 structure IM = IntBinaryMap
adamc@589 38
adamc@572 39 val funcs = [(("Basis", "alert"), "alert"),
adamc@601 40 (("Basis", "get_client_source"), "sg"),
adamc@586 41 (("Basis", "htmlifyBool"), "bs"),
adamc@583 42 (("Basis", "htmlifyFloat"), "ts"),
adamc@582 43 (("Basis", "htmlifyInt"), "ts"),
adamc@597 44 (("Basis", "htmlifyString"), "eh"),
adamc@579 45 (("Basis", "new_client_source"), "sc"),
adamc@579 46 (("Basis", "set_client_source"), "sv")]
adamc@572 47
adamc@572 48 structure FM = BinaryMapFn(struct
adamc@572 49 type ord_key = string * string
adamc@572 50 fun compare ((m1, x1), (m2, x2)) =
adamc@572 51 Order.join (String.compare (m1, m2),
adamc@572 52 fn () => String.compare (x1, x2))
adamc@572 53 end)
adamc@572 54
adamc@572 55 val funcs = foldl (fn ((k, v), m) => FM.insert (m, k, v)) FM.empty funcs
adamc@572 56
adamc@572 57 fun ffi k = FM.find (funcs, k)
adamc@572 58
adamc@567 59 type state = {
adamc@567 60 decls : decl list,
adamc@589 61 script : string list,
adamc@595 62 included : IS.set,
adamc@595 63 injectors : int IM.map,
adamc@595 64 maxName : int
adamc@567 65 }
adamc@567 66
adamc@567 67 fun varDepth (e, _) =
adamc@567 68 case e of
adamc@567 69 EPrim _ => 0
adamc@567 70 | ERel _ => 0
adamc@567 71 | ENamed _ => 0
adamc@567 72 | ECon (_, _, NONE) => 0
adamc@567 73 | ECon (_, _, SOME e) => varDepth e
adamc@567 74 | ENone _ => 0
adamc@567 75 | ESome (_, e) => varDepth e
adamc@567 76 | EFfi _ => 0
adamc@567 77 | EFfiApp (_, _, es) => foldl Int.max 0 (map varDepth es)
adamc@567 78 | EApp (e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@567 79 | EAbs _ => 0
adamc@567 80 | EUnop (_, e) => varDepth e
adamc@567 81 | EBinop (_, e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@567 82 | ERecord xes => foldl Int.max 0 (map (fn (_, e, _) => varDepth e) xes)
adamc@567 83 | EField (e, _) => varDepth e
adamc@567 84 | ECase (e, pes, _) =>
adamc@567 85 foldl Int.max (varDepth e)
adamc@567 86 (map (fn (p, e) => E.patBindsN p + varDepth e) pes)
adamc@567 87 | EStrcat (e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@567 88 | EError (e, _) => varDepth e
adamc@567 89 | EWrite e => varDepth e
adamc@567 90 | ESeq (e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@567 91 | ELet (_, _, e1, e2) => Int.max (varDepth e1, 1 + varDepth e2)
adamc@567 92 | EClosure _ => 0
adamc@567 93 | EQuery _ => 0
adamc@567 94 | EDml _ => 0
adamc@567 95 | ENextval _ => 0
adamc@567 96 | EUnurlify _ => 0
adamc@567 97 | EJavaScript _ => 0
adamc@568 98 | ESignalReturn e => varDepth e
adamc@572 99 | ESignalBind (e1, e2) => Int.max (varDepth e1, varDepth e2)
adamc@574 100 | ESignalSource e => varDepth e
adamc@609 101 | EServerCall (_, es, ek, _) => foldl Int.max (varDepth ek) (map varDepth es)
adamc@567 102
adamc@591 103 fun closedUpto d =
adamc@591 104 let
adamc@591 105 fun cu inner (e, _) =
adamc@591 106 case e of
adamc@591 107 EPrim _ => true
adamc@591 108 | ERel n => n < inner orelse n - inner >= d
adamc@591 109 | ENamed _ => true
adamc@591 110 | ECon (_, _, NONE) => true
adamc@591 111 | ECon (_, _, SOME e) => cu inner e
adamc@591 112 | ENone _ => true
adamc@591 113 | ESome (_, e) => cu inner e
adamc@591 114 | EFfi _ => true
adamc@591 115 | EFfiApp (_, _, es) => List.all (cu inner) es
adamc@591 116 | EApp (e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 117 | EAbs (_, _, _, e) => cu (inner + 1) e
adamc@591 118 | EUnop (_, e) => cu inner e
adamc@591 119 | EBinop (_, e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 120 | ERecord xes => List.all (fn (_, e, _) => cu inner e) xes
adamc@591 121 | EField (e, _) => cu inner e
adamc@591 122 | ECase (e, pes, _) =>
adamc@591 123 cu inner e
adamc@591 124 andalso List.all (fn (p, e) => cu (inner + E.patBindsN p) e) pes
adamc@591 125 | EStrcat (e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 126 | EError (e, _) => cu inner e
adamc@591 127 | EWrite e => cu inner e
adamc@591 128 | ESeq (e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 129 | ELet (_, _, e1, e2) => cu inner e1 andalso cu (inner + 1) e2
adamc@591 130 | EClosure (_, es) => List.all (cu inner) es
adamc@591 131 | EQuery {query, body, initial, ...} =>
adamc@591 132 cu inner query
adamc@591 133 andalso cu (inner + 2) body
adamc@591 134 andalso cu inner initial
adamc@591 135 | EDml e => cu inner e
adamc@591 136 | ENextval e => cu inner e
adamc@591 137 | EUnurlify (e, _) => cu inner e
adamc@591 138 | EJavaScript (_, e, _) => cu inner e
adamc@591 139 | ESignalReturn e => cu inner e
adamc@591 140 | ESignalBind (e1, e2) => cu inner e1 andalso cu inner e2
adamc@591 141 | ESignalSource e => cu inner e
adamc@609 142 | EServerCall (_, es, ek, _) => List.all (cu inner) es andalso cu inner ek
adamc@591 143 in
adamc@591 144 cu 0
adamc@591 145 end
adamc@591 146
adamc@568 147 fun strcat loc es =
adamc@568 148 case es of
adamc@568 149 [] => (EPrim (Prim.String ""), loc)
adamc@568 150 | [x] => x
adamc@568 151 | x :: es' => (EStrcat (x, strcat loc es'), loc)
adamc@568 152
adamc@589 153 fun process file =
adamc@567 154 let
adamc@596 155 val (someTs, nameds) =
adamc@596 156 foldl (fn ((DVal (_, n, t, e, _), _), (someTs, nameds)) => (someTs, IM.insert (nameds, n, e))
adamc@596 157 | ((DValRec vis, _), (someTs, nameds)) =>
adamc@596 158 (someTs, foldl (fn ((_, n, _, e, _), nameds) => IM.insert (nameds, n, e))
adamc@596 159 nameds vis)
adamc@596 160 | ((DDatatype (_, _, cs), _), state as (someTs, nameds)) =>
adamc@596 161 if ElabUtil.classifyDatatype cs = Option then
adamc@596 162 (foldl (fn ((_, n, SOME t), someTs) => IM.insert (someTs, n, t)
adamc@596 163 | (_, someTs) => someTs) someTs cs,
adamc@596 164 nameds)
adamc@596 165 else
adamc@596 166 state
adamc@595 167 | (_, state) => state)
adamc@596 168 (IM.empty, IM.empty) file
adamc@567 169
adamc@590 170 fun str loc s = (EPrim (Prim.String s), loc)
adamc@590 171
adamc@594 172 fun isNullable (t, _) =
adamc@594 173 case t of
adamc@594 174 TOption _ => true
adamc@594 175 | TRecord [] => true
adamc@594 176 | _ => false
adamc@594 177
adamc@593 178 fun quoteExp loc (t : typ) (e, st) =
adamc@590 179 case #1 t of
adamc@593 180 TSource => (strcat loc [str loc "s",
adamc@593 181 (EFfiApp ("Basis", "htmlifyInt", [e]), loc)], st)
adamc@590 182
adamc@593 183 | TRecord [] => (str loc "null", st)
adamc@593 184 | TRecord [(x, t)] =>
adamc@593 185 let
adamc@593 186 val (e, st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 187 in
adamc@593 188 (strcat loc [str loc ("{_" ^ x ^ ":"),
adamc@593 189 e,
adamc@593 190 str loc "}"], st)
adamc@593 191 end
adamc@593 192 | TRecord ((x, t) :: xts) =>
adamc@593 193 let
adamc@593 194 val (e', st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 195 val (es, st) = ListUtil.foldlMap
adamc@593 196 (fn ((x, t), st) =>
adamc@593 197 let
adamc@593 198 val (e, st) = quoteExp loc t ((EField (e, x), loc), st)
adamc@593 199 in
adamc@593 200 (strcat loc [str loc (",_" ^ x ^ ":"), e], st)
adamc@593 201 end)
adamc@593 202 st xts
adamc@593 203 in
adamc@593 204 (strcat loc (str loc ("{_" ^ x ^ ":")
adamc@593 205 :: e'
adamc@593 206 :: es
adamc@593 207 @ [str loc "}"]), st)
adamc@593 208 end
adamc@590 209
adamc@593 210 | TFfi ("Basis", "string") => ((EFfiApp ("Basis", "jsifyString", [e]), loc), st)
adamc@593 211 | TFfi ("Basis", "int") => ((EFfiApp ("Basis", "htmlifyInt", [e]), loc), st)
adamc@593 212 | TFfi ("Basis", "float") => ((EFfiApp ("Basis", "htmlifyFloat", [e]), loc), st)
adamc@593 213
adamc@593 214 | TFfi ("Basis", "bool") => ((ECase (e,
adamc@593 215 [((PCon (Enum, PConFfi {mod = "Basis",
adamc@593 216 datatyp = "bool",
adamc@593 217 con = "True",
adamc@593 218 arg = NONE}, NONE), loc),
adamc@593 219 str loc "true"),
adamc@593 220 ((PCon (Enum, PConFfi {mod = "Basis",
adamc@593 221 datatyp = "bool",
adamc@593 222 con = "False",
adamc@593 223 arg = NONE}, NONE), loc),
adamc@593 224 str loc "false")],
adamc@593 225 {disc = (TFfi ("Basis", "bool"), loc),
adamc@593 226 result = (TFfi ("Basis", "string"), loc)}), loc),
adamc@593 227 st)
adamc@592 228
adamc@594 229 | TOption t =>
adamc@594 230 let
adamc@594 231 val (e', st) = quoteExp loc t ((ERel 0, loc), st)
adamc@594 232 in
adamc@594 233 ((ECase (e,
adamc@594 234 [((PNone t, loc),
adamc@594 235 str loc "null"),
adamc@594 236 ((PSome (t, (PVar ("x", t), loc)), loc),
adamc@594 237 if isNullable t then
adamc@594 238 strcat loc [str loc "{v:", e', str loc "}"]
adamc@594 239 else
adamc@594 240 e')],
adamc@594 241 {disc = (TOption t, loc),
adamc@594 242 result = (TFfi ("Basis", "string"), loc)}), loc),
adamc@594 243 st)
adamc@594 244 end
adamc@594 245
adamc@595 246 | TDatatype (n, ref (dk, cs)) =>
adamc@595 247 (case IM.find (#injectors st, n) of
adamc@595 248 SOME n' => ((EApp ((ENamed n', loc), e), loc), st)
adamc@595 249 | NONE =>
adamc@595 250 let
adamc@595 251 val dk = ElabUtil.classifyDatatype cs
adamc@595 252
adamc@595 253 val n' = #maxName st
adamc@595 254 val st = {decls = #decls st,
adamc@595 255 script = #script st,
adamc@595 256 included = #included st,
adamc@595 257 injectors = IM.insert (#injectors st, n, n'),
adamc@595 258 maxName = n' + 1}
adamc@595 259
adamc@595 260 val (pes, st) = ListUtil.foldlMap
adamc@595 261 (fn ((_, cn, NONE), st) =>
adamc@595 262 (((PCon (dk, PConVar cn, NONE), loc),
adamc@596 263 case dk of
adamc@596 264 Option => str loc "null"
adamc@596 265 | _ => str loc (Int.toString cn)),
adamc@595 266 st)
adamc@595 267 | ((_, cn, SOME t), st) =>
adamc@595 268 let
adamc@595 269 val (e, st) = quoteExp loc t ((ERel 0, loc), st)
adamc@595 270 in
adamc@595 271 (((PCon (dk, PConVar cn, SOME (PVar ("x", t), loc)), loc),
adamc@596 272 case dk of
adamc@596 273 Option =>
adamc@596 274 if isNullable t then
adamc@596 275 strcat loc [str loc "{_v:",
adamc@596 276 e,
adamc@596 277 str loc "}"]
adamc@596 278 else
adamc@596 279 e
adamc@597 280 | _ => strcat loc [str loc ("{n:" ^ Int.toString cn
adamc@597 281 ^ ",v:"),
adamc@597 282 e,
adamc@597 283 str loc "}"]),
adamc@595 284 st)
adamc@595 285 end)
adamc@595 286 st cs
adamc@595 287
adamc@595 288 val s = (TFfi ("Basis", "string"), loc)
adamc@595 289 val body = (ECase ((ERel 0, loc), pes,
adamc@595 290 {disc = t, result = s}), loc)
adamc@595 291 val body = (EAbs ("x", t, s, body), loc)
adamc@595 292
adamc@595 293 val st = {decls = (DValRec [("jsify", n', (TFun (t, s), loc),
adamc@595 294 body, "jsify")], loc) :: #decls st,
adamc@595 295 script = #script st,
adamc@595 296 included = #included st,
adamc@595 297 injectors = #injectors st,
adamc@595 298 maxName = #maxName st}
adamc@595 299 in
adamc@595 300 ((EApp ((ENamed n', loc), e), loc), st)
adamc@595 301 end)
adamc@595 302
adamc@590 303 | _ => (EM.errorAt loc "Don't know how to embed type in JavaScript";
adamc@590 304 Print.prefaces "Can't embed" [("t", MonoPrint.p_typ MonoEnv.empty t)];
adamc@593 305 (str loc "ERROR", st))
adamc@590 306
adamc@613 307 fun unurlifyExp loc (t : typ, st) =
adamc@613 308 case #1 t of
adamc@613 309 TRecord [] => ("null", st)
adamc@613 310 | TRecord [(x, t)] =>
adamc@613 311 let
adamc@613 312 val (e, st) = unurlifyExp loc (t, st)
adamc@613 313 in
adamc@613 314 ("{_" ^ x ^ ":" ^ e ^ "}",
adamc@613 315 st)
adamc@613 316 end
adamc@613 317 | TRecord ((x, t) :: xts) =>
adamc@613 318 let
adamc@613 319 val (e', st) = unurlifyExp loc (t, st)
adamc@613 320 val (es, st) = ListUtil.foldlMap
adamc@613 321 (fn ((x, t), st) =>
adamc@613 322 let
adamc@613 323 val (e, st) = unurlifyExp loc (t, st)
adamc@613 324 in
adamc@613 325 (",_" ^ x ^ ":" ^ e, st)
adamc@613 326 end)
adamc@613 327 st xts
adamc@613 328 in
adamc@613 329 (String.concat ("{_"
adamc@613 330 :: x
adamc@613 331 :: ":"
adamc@613 332 :: e'
adamc@613 333 :: es
adamc@613 334 @ ["}"]), st)
adamc@613 335 end
adamc@613 336
adamc@613 337 | TFfi ("Basis", "string") => ("decode(t[i++])", st)
adamc@613 338 | TFfi ("Basis", "int") => ("parseInt(t[i++])", st)
adamc@613 339 | TFfi ("Basis", "float") => ("parseFloat(t[i++])", st)
adamc@613 340
adamc@613 341 | TFfi ("Basis", "bool") => ("t[i++] == \"True\"", st)
adamc@613 342
adamc@613 343 | TOption t => raise Fail "!!" (*
adamc@613 344 let
adamc@613 345 val (e', st) = quoteExp loc t ((ERel 0, loc), st)
adamc@613 346 in
adamc@613 347 ((ECase (e,
adamc@613 348 [((PNone t, loc),
adamc@613 349 str loc "null"),
adamc@613 350 ((PSome (t, (PVar ("x", t), loc)), loc),
adamc@613 351 if isNullable t then
adamc@613 352 strcat loc [str loc "{v:", e', str loc "}"]
adamc@613 353 else
adamc@613 354 e')],
adamc@613 355 {disc = (TOption t, loc),
adamc@613 356 result = (TFfi ("Basis", "string"), loc)}), loc),
adamc@613 357 st)
adamc@613 358 end*)
adamc@613 359
adamc@613 360 | TDatatype (n, ref (dk, cs)) => raise Fail "!!" (*
adamc@613 361 (case IM.find (#injectors st, n) of
adamc@613 362 SOME n' => ((EApp ((ENamed n', loc), e), loc), st)
adamc@613 363 | NONE =>
adamc@613 364 let
adamc@613 365 val dk = ElabUtil.classifyDatatype cs
adamc@613 366
adamc@613 367 val n' = #maxName st
adamc@613 368 val st = {decls = #decls st,
adamc@613 369 script = #script st,
adamc@613 370 included = #included st,
adamc@613 371 injectors = IM.insert (#injectors st, n, n'),
adamc@613 372 maxName = n' + 1}
adamc@613 373
adamc@613 374 val (pes, st) = ListUtil.foldlMap
adamc@613 375 (fn ((_, cn, NONE), st) =>
adamc@613 376 (((PCon (dk, PConVar cn, NONE), loc),
adamc@613 377 case dk of
adamc@613 378 Option => str loc "null"
adamc@613 379 | _ => str loc (Int.toString cn)),
adamc@613 380 st)
adamc@613 381 | ((_, cn, SOME t), st) =>
adamc@613 382 let
adamc@613 383 val (e, st) = quoteExp loc t ((ERel 0, loc), st)
adamc@613 384 in
adamc@613 385 (((PCon (dk, PConVar cn, SOME (PVar ("x", t), loc)), loc),
adamc@613 386 case dk of
adamc@613 387 Option =>
adamc@613 388 if isNullable t then
adamc@613 389 strcat loc [str loc "{_v:",
adamc@613 390 e,
adamc@613 391 str loc "}"]
adamc@613 392 else
adamc@613 393 e
adamc@613 394 | _ => strcat loc [str loc ("{n:" ^ Int.toString cn
adamc@613 395 ^ ",v:"),
adamc@613 396 e,
adamc@613 397 str loc "}"]),
adamc@613 398 st)
adamc@613 399 end)
adamc@613 400 st cs
adamc@613 401
adamc@613 402 val s = (TFfi ("Basis", "string"), loc)
adamc@613 403 val body = (ECase ((ERel 0, loc), pes,
adamc@613 404 {disc = t, result = s}), loc)
adamc@613 405 val body = (EAbs ("x", t, s, body), loc)
adamc@613 406
adamc@613 407 val st = {decls = (DValRec [("jsify", n', (TFun (t, s), loc),
adamc@613 408 body, "jsify")], loc) :: #decls st,
adamc@613 409 script = #script st,
adamc@613 410 included = #included st,
adamc@613 411 injectors = #injectors st,
adamc@613 412 maxName = #maxName st}
adamc@613 413 in
adamc@613 414 ((EApp ((ENamed n', loc), e), loc), st)
adamc@613 415 end)*)
adamc@613 416
adamc@613 417 | _ => (EM.errorAt loc "Don't know how to unurlify type in JavaScript";
adamc@613 418 Print.prefaces "Can't unurlify" [("t", MonoPrint.p_typ MonoEnv.empty t)];
adamc@613 419 ("ERROR", st))
adamc@613 420
adamc@589 421 fun jsExp mode skip outer =
adamc@567 422 let
adamc@589 423 val len = length outer
adamc@567 424
adamc@589 425 fun jsE inner (e as (_, loc), st) =
adamc@589 426 let
adamc@590 427 val str = str loc
adamc@567 428
adamc@589 429 fun var n = Int.toString (len + inner - n - 1)
adamc@567 430
adamc@589 431 fun patCon pc =
adamc@589 432 case pc of
adamc@589 433 PConVar n => str (Int.toString n)
adamc@589 434 | PConFfi {mod = "Basis", con = "True", ...} => str "true"
adamc@589 435 | PConFfi {mod = "Basis", con = "False", ...} => str "false"
adamc@589 436 | PConFfi {con, ...} => str ("\"_" ^ con ^ "\"")
adamc@567 437
adamc@591 438 fun unsupported s =
adamc@591 439 (EM.errorAt loc (s ^ " in code to be compiled to JavaScript[2]");
adamc@591 440 (str "ERROR", st))
adamc@577 441
adamc@589 442 val strcat = strcat loc
adamc@584 443
adamc@589 444 fun jsPrim p =
adamc@589 445 case p of
adamc@589 446 Prim.String s =>
adamc@589 447 str ("\""
adamc@589 448 ^ String.translate (fn #"'" =>
adamc@589 449 if mode = Attribute then
adamc@589 450 "\\047"
adamc@589 451 else
adamc@589 452 "'"
adamc@589 453 | #"\"" => "\\\""
adamc@589 454 | #"<" =>
adamc@589 455 if mode = Script then
adamc@589 456 "<"
adamc@589 457 else
adamc@589 458 "\\074"
adamc@589 459 | #"\\" => "\\\\"
adamc@589 460 | ch => String.str ch) s
adamc@589 461 ^ "\"")
adamc@589 462 | _ => str (Prim.toString p)
adamc@589 463
adamc@589 464 fun jsPat depth inner (p, _) succ fail =
adamc@589 465 case p of
adamc@589 466 PWild => succ
adamc@589 467 | PVar _ => strcat [str ("(_" ^ Int.toString (len + inner) ^ "=d"
adamc@589 468 ^ Int.toString depth ^ ","),
adamc@589 469 succ,
adamc@589 470 str ")"]
adamc@589 471 | PPrim p => strcat [str ("(d" ^ Int.toString depth ^ "=="),
adamc@589 472 jsPrim p,
adamc@589 473 str "?",
adamc@589 474 succ,
adamc@589 475 str ":",
adamc@589 476 fail,
adamc@589 477 str ")"]
adamc@589 478 | PCon (_, PConFfi {mod = "Basis", con = "True", ...}, NONE) =>
adamc@589 479 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 480 succ,
adamc@589 481 str ":",
adamc@589 482 fail,
adamc@589 483 str ")"]
adamc@589 484 | PCon (_, PConFfi {mod = "Basis", con = "False", ...}, NONE) =>
adamc@589 485 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 486 fail,
adamc@589 487 str ":",
adamc@589 488 succ,
adamc@589 489 str ")"]
adamc@596 490 | PCon (Option, _, NONE) =>
adamc@596 491 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@596 492 fail,
adamc@596 493 str ":",
adamc@596 494 succ,
adamc@596 495 str ")"]
adamc@596 496 | PCon (Option, PConVar n, SOME p) =>
adamc@596 497 (case IM.find (someTs, n) of
adamc@596 498 NONE => raise Fail "Jscomp: Not in someTs"
adamc@596 499 | SOME t =>
adamc@596 500 strcat [str ("(d" ^ Int.toString depth ^ "?("
adamc@596 501 ^ (if isNullable t then
adamc@596 502 "d" ^ Int.toString depth ^ "=d"
adamc@596 503 ^ Int.toString depth ^ ".v,"
adamc@596 504 else
adamc@596 505 "")),
adamc@596 506 jsPat depth inner p succ fail,
adamc@596 507 str "):",
adamc@596 508 fail,
adamc@596 509 str ")"])
adamc@589 510 | PCon (_, pc, NONE) =>
adamc@589 511 strcat [str ("(d" ^ Int.toString depth ^ "=="),
adamc@589 512 patCon pc,
adamc@589 513 str "?",
adamc@589 514 succ,
adamc@589 515 str ":",
adamc@589 516 fail,
adamc@589 517 str ")"]
adamc@589 518 | PCon (_, pc, SOME p) =>
adamc@589 519 strcat [str ("(d" ^ Int.toString depth ^ ".n=="),
adamc@589 520 patCon pc,
adamc@589 521 str ("?(d" ^ Int.toString depth ^ "=d" ^ Int.toString depth ^ ".v,"),
adamc@589 522 jsPat depth inner p succ fail,
adamc@589 523 str "):",
adamc@589 524 fail,
adamc@589 525 str ")"]
adamc@589 526 | PRecord xps =>
adamc@589 527 let
adamc@589 528 val (_, succ) = foldl
adamc@589 529 (fn ((x, p, _), (inner, succ)) =>
adamc@589 530 (inner + E.patBindsN p,
adamc@589 531 strcat [str ("(d" ^ Int.toString (depth+1) ^ "=d"
adamc@589 532 ^ Int.toString depth ^ "._" ^ x ^ ","),
adamc@589 533 jsPat (depth+1) inner p succ fail,
adamc@589 534 str ")"]))
adamc@589 535 (inner, succ) xps
adamc@589 536 in
adamc@589 537 succ
adamc@589 538 end
adamc@589 539 | PNone _ => strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 540 fail,
adamc@589 541 str ":",
adamc@589 542 succ,
adamc@589 543 str ")"]
adamc@594 544 | PSome (t, p) => strcat (str ("(d" ^ Int.toString depth ^ "?")
adamc@594 545 :: (if isNullable t then
adamc@594 546 [str ("d" ^ Int.toString depth
adamc@594 547 ^ "=d" ^ Int.toString depth ^ ".v")]
adamc@594 548 else
adamc@594 549 [])
adamc@594 550 @ [jsPat depth inner p succ fail,
adamc@594 551 str ":",
adamc@594 552 fail,
adamc@594 553 str ")"])
adamc@589 554
adamc@601 555 val jsifyString = String.translate (fn #"\"" => "\\\""
adamc@601 556 | #"\\" => "\\\\"
adamc@601 557 | ch => String.str ch)
adamc@601 558
adamc@601 559 fun jsifyStringMulti (n, s) =
adamc@601 560 case n of
adamc@601 561 0 => s
adamc@601 562 | _ => jsifyStringMulti (n - 1, jsifyString s)
adamc@601 563
adamc@601 564 fun deStrcat level (all as (e, _)) =
adamc@589 565 case e of
adamc@601 566 EPrim (Prim.String s) => jsifyStringMulti (level, s)
adamc@601 567 | EStrcat (e1, e2) => deStrcat level e1 ^ deStrcat level e2
adamc@601 568 | EFfiApp ("Basis", "jsifyString", [e]) => "\"" ^ deStrcat (level + 1) e ^ "\""
adamc@601 569 | _ => (Print.prefaces "deStrcat" [("e", MonoPrint.p_exp MonoEnv.empty all)];
adamc@601 570 raise Fail "Jscomp: deStrcat")
adamc@590 571
adamc@590 572 val quoteExp = quoteExp loc
adamc@567 573 in
adamc@590 574 (*Print.prefaces "jsE" [("e", MonoPrint.p_exp MonoEnv.empty e)];*)
adamc@590 575
adamc@589 576 case #1 e of
adamc@589 577 EPrim p => (jsPrim p, st)
adamc@589 578 | ERel n =>
adamc@589 579 if n < inner then
adamc@589 580 (str ("_" ^ var n), st)
adamc@589 581 else
adamc@589 582 let
adamc@589 583 val n = n - inner
adamc@589 584 in
adamc@593 585 quoteExp (List.nth (outer, n)) ((ERel (n - skip), loc), st)
adamc@589 586 end
adamc@567 587
adamc@589 588 | ENamed n =>
adamc@589 589 let
adamc@589 590 val st =
adamc@589 591 if IS.member (#included st, n) then
adamc@589 592 st
adamc@589 593 else
adamc@589 594 case IM.find (nameds, n) of
adamc@589 595 NONE => raise Fail "Jscomp: Unbound ENamed"
adamc@589 596 | SOME e =>
adamc@589 597 let
adamc@589 598 val st = {decls = #decls st,
adamc@589 599 script = #script st,
adamc@595 600 included = IS.add (#included st, n),
adamc@595 601 injectors = #injectors st,
adamc@595 602 maxName = #maxName st}
adamc@578 603
adamc@589 604 val (e, st) = jsExp mode skip [] 0 (e, st)
adamc@601 605 val e = deStrcat 0 e
adamc@589 606
adamc@589 607 val sc = "_n" ^ Int.toString n ^ "=" ^ e ^ ";\n"
adamc@589 608 in
adamc@589 609 {decls = #decls st,
adamc@589 610 script = sc :: #script st,
adamc@595 611 included = #included st,
adamc@595 612 injectors = #injectors st,
adamc@595 613 maxName = #maxName st}
adamc@589 614 end
adamc@589 615 in
adamc@589 616 (str ("_n" ^ Int.toString n), st)
adamc@589 617 end
adamc@589 618
adamc@596 619 | ECon (Option, _, NONE) => (str "null", st)
adamc@596 620 | ECon (Option, PConVar n, SOME e) =>
adamc@596 621 let
adamc@596 622 val (e, st) = jsE inner (e, st)
adamc@596 623 in
adamc@596 624 case IM.find (someTs, n) of
adamc@596 625 NONE => raise Fail "Jscomp: Not in someTs [2]"
adamc@596 626 | SOME t =>
adamc@596 627 (if isNullable t then
adamc@596 628 strcat [str "{v:",
adamc@596 629 e,
adamc@596 630 str "}"]
adamc@596 631 else
adamc@596 632 e, st)
adamc@596 633 end
adamc@596 634
adamc@589 635 | ECon (_, pc, NONE) => (patCon pc, st)
adamc@589 636 | ECon (_, pc, SOME e) =>
adamc@589 637 let
adamc@589 638 val (s, st) = jsE inner (e, st)
adamc@589 639 in
adamc@589 640 (strcat [str "{n:",
adamc@589 641 patCon pc,
adamc@589 642 str ",v:",
adamc@589 643 s,
adamc@589 644 str "}"], st)
adamc@589 645 end
adamc@596 646
adamc@589 647 | ENone _ => (str "null", st)
adamc@589 648 | ESome (t, e) =>
adamc@572 649 let
adamc@572 650 val (e, st) = jsE inner (e, st)
adamc@572 651 in
adamc@589 652 (if isNullable t then
adamc@589 653 strcat [str "{v:", e, str "}"]
adamc@589 654 else
adamc@589 655 e, st)
adamc@589 656 end
adamc@589 657
adamc@589 658 | EFfi k =>
adamc@589 659 let
adamc@589 660 val name = case ffi k of
adamc@589 661 NONE => (EM.errorAt loc ("Unsupported FFI identifier " ^ #2 k
adamc@589 662 ^ " in JavaScript");
adamc@589 663 "ERROR")
adamc@589 664 | SOME s => s
adamc@589 665 in
adamc@589 666 (str name, st)
adamc@589 667 end
adamc@589 668 | EFfiApp (m, x, args) =>
adamc@589 669 let
adamc@589 670 val args =
adamc@589 671 case (m, x, args) of
adamc@589 672 ("Basis", "new_client_source", [(EJavaScript (_, e, _), _)]) => [e]
adamc@589 673 | ("Basis", "set_client_source", [e1, (EJavaScript (_, e2, _), _)]) => [e1, e2]
adamc@589 674 | _ => args
adamc@589 675
adamc@589 676 val name = case ffi (m, x) of
adamc@589 677 NONE => (EM.errorAt loc ("Unsupported FFI function "
adamc@589 678 ^ x ^ " in JavaScript");
adamc@589 679 "ERROR")
adamc@589 680 | SOME s => s
adamc@589 681 in
adamc@589 682 case args of
adamc@589 683 [] => (str (name ^ "()"), st)
adamc@589 684 | [e] =>
adamc@589 685 let
adamc@589 686 val (e, st) = jsE inner (e, st)
adamc@589 687 in
adamc@589 688 (strcat [str (name ^ "("),
adamc@589 689 e,
adamc@589 690 str ")"], st)
adamc@589 691 end
adamc@589 692 | e :: es =>
adamc@589 693 let
adamc@589 694 val (e, st) = jsE inner (e, st)
adamc@589 695 val (es, st) = ListUtil.foldlMapConcat
adamc@589 696 (fn (e, st) =>
adamc@589 697 let
adamc@589 698 val (e, st) = jsE inner (e, st)
adamc@589 699 in
adamc@589 700 ([str ",", e], st)
adamc@589 701 end)
adamc@589 702 st es
adamc@589 703 in
adamc@589 704 (strcat (str (name ^ "(")
adamc@589 705 :: e
adamc@589 706 :: es
adamc@589 707 @ [str ")"]), st)
adamc@589 708 end
adamc@589 709 end
adamc@589 710
adamc@589 711 | EApp (e1, e2) =>
adamc@589 712 let
adamc@589 713 val (e1, st) = jsE inner (e1, st)
adamc@589 714 val (e2, st) = jsE inner (e2, st)
adamc@589 715 in
adamc@589 716 (strcat [e1, str "(", e2, str ")"], st)
adamc@589 717 end
adamc@589 718 | EAbs (_, _, _, e) =>
adamc@589 719 let
adamc@589 720 val locals = List.tabulate
adamc@589 721 (varDepth e,
adamc@589 722 fn i => str ("var _" ^ Int.toString (len + inner + i + 1) ^ ";"))
adamc@589 723 val (e, st) = jsE (inner + 1) (e, st)
adamc@589 724 in
adamc@589 725 (strcat (str ("function(_"
adamc@589 726 ^ Int.toString (len + inner)
adamc@589 727 ^ "){")
adamc@589 728 :: locals
adamc@589 729 @ [str "return ",
adamc@589 730 e,
adamc@589 731 str "}"]),
adamc@589 732 st)
adamc@589 733 end
adamc@589 734
adamc@589 735 | EUnop (s, e) =>
adamc@589 736 let
adamc@589 737 val (e, st) = jsE inner (e, st)
adamc@589 738 in
adamc@589 739 (strcat [str ("(" ^ s),
adamc@572 740 e,
adamc@589 741 str ")"],
adamc@589 742 st)
adamc@589 743 end
adamc@589 744 | EBinop (s, e1, e2) =>
adamc@589 745 let
adamc@589 746 val (e1, st) = jsE inner (e1, st)
adamc@589 747 val (e2, st) = jsE inner (e2, st)
adamc@589 748 in
adamc@589 749 (strcat [str "(",
adamc@589 750 e1,
adamc@589 751 str s,
adamc@589 752 e2,
adamc@589 753 str ")"],
adamc@589 754 st)
adamc@589 755 end
adamc@589 756
adamc@589 757 | ERecord [] => (str "null", st)
adamc@589 758 | ERecord [(x, e, _)] =>
adamc@589 759 let
adamc@589 760 val (e, st) = jsE inner (e, st)
adamc@589 761 in
adamc@589 762 (strcat [str "{_x:", e, str "}"], st)
adamc@589 763 end
adamc@589 764 | ERecord ((x, e, _) :: xes) =>
adamc@589 765 let
adamc@589 766 val (e, st) = jsE inner (e, st)
adamc@589 767
adamc@589 768 val (es, st) =
adamc@589 769 foldr (fn ((x, e, _), (es, st)) =>
adamc@589 770 let
adamc@589 771 val (e, st) = jsE inner (e, st)
adamc@589 772 in
adamc@589 773 (str (",_" ^ x ^ ":")
adamc@589 774 :: e
adamc@589 775 :: es,
adamc@589 776 st)
adamc@589 777 end)
adamc@589 778 ([str "}"], st) xes
adamc@589 779 in
adamc@589 780 (strcat (str ("{_" ^ x ^ ":")
adamc@589 781 :: e
adamc@589 782 :: es),
adamc@589 783 st)
adamc@589 784 end
adamc@589 785 | EField (e, x) =>
adamc@589 786 let
adamc@589 787 val (e, st) = jsE inner (e, st)
adamc@589 788 in
adamc@589 789 (strcat [e,
adamc@589 790 str ("._" ^ x)], st)
adamc@589 791 end
adamc@589 792
adamc@591 793 | ECase (e', pes, {result, ...}) =>
adamc@591 794 if closedUpto inner e andalso List.all (fn (_, e) => closedUpto inner e) pes then
adamc@593 795 let
adamc@593 796 val (e', st) = quoteExp result ((ERel 0, loc), st)
adamc@593 797 in
adamc@593 798 ((ELet ("js", result, e, e'), loc),
adamc@593 799 st)
adamc@593 800 end
adamc@591 801 else
adamc@591 802 let
adamc@591 803 val plen = length pes
adamc@589 804
adamc@591 805 val (cases, st) = ListUtil.foldliMap
adamc@591 806 (fn (i, (p, e), st) =>
adamc@591 807 let
adamc@591 808 val (e, st) = jsE (inner + E.patBindsN p) (e, st)
adamc@591 809 val fail =
adamc@591 810 if i = plen - 1 then
adamc@591 811 str "pf()"
adamc@591 812 else
adamc@591 813 str ("c" ^ Int.toString (i+1) ^ "()")
adamc@591 814 val c = jsPat 0 inner p e fail
adamc@591 815 in
adamc@591 816 (strcat [str ("c" ^ Int.toString i ^ "=function(){return "),
adamc@591 817 c,
adamc@591 818 str "},"],
adamc@591 819 st)
adamc@591 820 end)
adamc@591 821 st pes
adamc@589 822
adamc@591 823 val (e, st) = jsE inner (e', st)
adamc@591 824 in
adamc@591 825 (strcat (str "("
adamc@591 826 :: List.revAppend (cases,
adamc@591 827 [str "d0=",
adamc@591 828 e,
adamc@591 829 str ",c0())"])), st)
adamc@591 830 end
adamc@589 831
adamc@589 832 | EStrcat (e1, e2) =>
adamc@589 833 let
adamc@589 834 val (e1, st) = jsE inner (e1, st)
adamc@589 835 val (e2, st) = jsE inner (e2, st)
adamc@589 836 in
adamc@589 837 (strcat [str "(", e1, str "+", e2, str ")"], st)
adamc@589 838 end
adamc@589 839
adamc@589 840 | EError (e, _) =>
adamc@589 841 let
adamc@589 842 val (e, st) = jsE inner (e, st)
adamc@589 843 in
adamc@589 844 (strcat [str "alert(\"ERROR: \"+", e, str ")"],
adamc@589 845 st)
adamc@589 846 end
adamc@589 847
adamc@589 848 | EWrite e =>
adamc@589 849 let
adamc@589 850 val (e, st) = jsE inner (e, st)
adamc@589 851 in
adamc@589 852 (strcat [str "document.write(",
adamc@589 853 e,
adamc@589 854 str ".v)"], st)
adamc@589 855 end
adamc@589 856
adamc@589 857 | ESeq (e1, e2) =>
adamc@589 858 let
adamc@589 859 val (e1, st) = jsE inner (e1, st)
adamc@589 860 val (e2, st) = jsE inner (e2, st)
adamc@589 861 in
adamc@589 862 (strcat [str "(", e1, str ",", e2, str ")"], st)
adamc@589 863 end
adamc@589 864 | ELet (_, _, e1, e2) =>
adamc@589 865 let
adamc@589 866 val (e1, st) = jsE inner (e1, st)
adamc@589 867 val (e2, st) = jsE (inner + 1) (e2, st)
adamc@589 868 in
adamc@589 869 (strcat [str ("(_" ^ Int.toString (len + inner) ^ "="),
adamc@589 870 e1,
adamc@589 871 str ",",
adamc@589 872 e2,
adamc@572 873 str ")"], st)
adamc@572 874 end
adamc@589 875
adamc@601 876 | EJavaScript (Source _, _, SOME _) => (e, st)
adamc@603 877 | EJavaScript (_, _, SOME e) =>
adamc@603 878 (strcat [str "\"cr(\"+ca(function(){return ",
adamc@603 879 e,
adamc@603 880 str "})+\")\""],
adamc@603 881 st)
adamc@590 882
adamc@589 883 | EClosure _ => unsupported "EClosure"
adamc@589 884 | EQuery _ => unsupported "Query"
adamc@589 885 | EDml _ => unsupported "DML"
adamc@589 886 | ENextval _ => unsupported "Nextval"
adamc@589 887 | EUnurlify _ => unsupported "EUnurlify"
adamc@601 888 | EJavaScript (_, e, _) =>
adamc@601 889 let
adamc@601 890 val (e, st) = jsE inner (e, st)
adamc@601 891 in
adamc@603 892 (strcat [str "\"cr(\"+ca(function(){return ",
adamc@603 893 e,
adamc@603 894 str "})+\")\""],
adamc@603 895 st)
adamc@601 896 end
adamc@590 897
adamc@589 898 | ESignalReturn e =>
adamc@572 899 let
adamc@572 900 val (e, st) = jsE inner (e, st)
adamc@572 901 in
adamc@589 902 (strcat [str "sr(",
adamc@589 903 e,
adamc@589 904 str ")"],
adamc@589 905 st)
adamc@589 906 end
adamc@589 907 | ESignalBind (e1, e2) =>
adamc@589 908 let
adamc@589 909 val (e1, st) = jsE inner (e1, st)
adamc@589 910 val (e2, st) = jsE inner (e2, st)
adamc@589 911 in
adamc@589 912 (strcat [str "sb(",
adamc@589 913 e1,
adamc@589 914 str ",",
adamc@589 915 e2,
adamc@589 916 str ")"],
adamc@589 917 st)
adamc@589 918 end
adamc@589 919 | ESignalSource e =>
adamc@589 920 let
adamc@589 921 val (e, st) = jsE inner (e, st)
adamc@589 922 in
adamc@589 923 (strcat [str "ss(",
adamc@589 924 e,
adamc@589 925 str ")"],
adamc@589 926 st)
adamc@572 927 end
adamc@608 928
adamc@613 929 | EServerCall (x, es, ek, t) =>
adamc@609 930 let
adamc@609 931 val (ek, st) = jsE inner (ek, st)
adamc@613 932 val (unurl, st) = unurlifyExp loc (t, st)
adamc@609 933 in
adamc@613 934 (strcat [str ("rc(\"" ^ !Monoize.urlPrefix ^ x ^ "\", function(s){var t=s.split(\"/\");var i=0;return "
adamc@613 935 ^ unurl ^ "},"),
adamc@609 936 ek,
adamc@609 937 str ")"],
adamc@609 938 st)
adamc@609 939 end
adamc@567 940 end
adamc@589 941 in
adamc@589 942 jsE
adamc@589 943 end
adamc@567 944
adamc@589 945 val decl : state -> decl -> decl * state =
adamc@589 946 U.Decl.foldMapB {typ = fn x => x,
adamc@589 947 exp = fn (env, e, st) =>
adamc@589 948 let
adamc@589 949 fun doCode m skip env orig e =
adamc@589 950 let
adamc@589 951 val len = length env
adamc@589 952 fun str s = (EPrim (Prim.String s), #2 e)
adamc@567 953
adamc@589 954 val locals = List.tabulate
adamc@589 955 (varDepth e,
adamc@589 956 fn i => str ("var _" ^ Int.toString (len + i) ^ ";"))
adamc@589 957 val (e, st) = jsExp m skip env 0 (e, st)
adamc@589 958 in
adamc@589 959 (EJavaScript (m, orig, SOME (strcat (#2 e) (locals @ [e]))), st)
adamc@589 960 end
adamc@589 961 in
adamc@589 962 case e of
adamc@591 963 EJavaScript (m, orig as (EAbs (_, t, _, e), _), NONE) =>
adamc@591 964 doCode m 1 (t :: env) orig e
adamc@591 965 | EJavaScript (m, orig, NONE) =>
adamc@591 966 doCode m 0 env orig orig
adamc@589 967 | _ => (e, st)
adamc@589 968 end,
adamc@589 969 decl = fn (_, e, st) => (e, st),
adamc@589 970 bind = fn (env, U.Decl.RelE (_, t)) => t :: env
adamc@589 971 | (env, _) => env}
adamc@589 972 []
adamc@567 973
adamc@567 974 fun doDecl (d, st) =
adamc@567 975 let
adamc@567 976 val (d, st) = decl st d
adamc@567 977 in
adamc@567 978 (List.revAppend (#decls st, [d]),
adamc@567 979 {decls = [],
adamc@589 980 script = #script st,
adamc@595 981 included = #included st,
adamc@595 982 injectors = #injectors st,
adamc@595 983 maxName = #maxName st})
adamc@567 984 end
adamc@567 985
adamc@567 986 val (ds, st) = ListUtil.foldlMapConcat doDecl
adamc@567 987 {decls = [],
adamc@589 988 script = [],
adamc@595 989 included = IS.empty,
adamc@595 990 injectors = IM.empty,
adamc@595 991 maxName = U.File.maxName file + 1}
adamc@567 992 file
adamc@569 993
adamc@569 994 val inf = TextIO.openIn (OS.Path.joinDirFile {dir = Config.libJs, file = "urweb.js"})
adamc@569 995 fun lines acc =
adamc@569 996 case TextIO.inputLine inf of
adamc@569 997 NONE => String.concat (rev acc)
adamc@569 998 | SOME line => lines (line :: acc)
adamc@569 999 val lines = lines []
adamc@567 1000 in
adamc@569 1001 TextIO.closeIn inf;
adamc@589 1002 (DJavaScript (lines ^ String.concat (rev (#script st))), ErrorMsg.dummySpan) :: ds
adamc@567 1003 end
adamc@567 1004
adamc@567 1005 end