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annotate src/jscomp.sml @ 610:c41b2abf156b

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Reading and displaying value via AJAX
author Adam Chlipala <adamc@hcoop.net>
date Sun, 15 Feb 2009 10:54:00 -0500
parents 56aaa1941dad
children c5991cdb0c4b
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@589 307 fun jsExp mode skip outer =
adamc@567 308 let
adamc@589 309 val len = length outer
adamc@567 310
adamc@589 311 fun jsE inner (e as (_, loc), st) =
adamc@589 312 let
adamc@590 313 val str = str loc
adamc@567 314
adamc@589 315 fun var n = Int.toString (len + inner - n - 1)
adamc@567 316
adamc@589 317 fun patCon pc =
adamc@589 318 case pc of
adamc@589 319 PConVar n => str (Int.toString n)
adamc@589 320 | PConFfi {mod = "Basis", con = "True", ...} => str "true"
adamc@589 321 | PConFfi {mod = "Basis", con = "False", ...} => str "false"
adamc@589 322 | PConFfi {con, ...} => str ("\"_" ^ con ^ "\"")
adamc@567 323
adamc@591 324 fun unsupported s =
adamc@591 325 (EM.errorAt loc (s ^ " in code to be compiled to JavaScript[2]");
adamc@591 326 (str "ERROR", st))
adamc@577 327
adamc@589 328 val strcat = strcat loc
adamc@584 329
adamc@589 330 fun jsPrim p =
adamc@589 331 case p of
adamc@589 332 Prim.String s =>
adamc@589 333 str ("\""
adamc@589 334 ^ String.translate (fn #"'" =>
adamc@589 335 if mode = Attribute then
adamc@589 336 "\\047"
adamc@589 337 else
adamc@589 338 "'"
adamc@589 339 | #"\"" => "\\\""
adamc@589 340 | #"<" =>
adamc@589 341 if mode = Script then
adamc@589 342 "<"
adamc@589 343 else
adamc@589 344 "\\074"
adamc@589 345 | #"\\" => "\\\\"
adamc@589 346 | ch => String.str ch) s
adamc@589 347 ^ "\"")
adamc@589 348 | _ => str (Prim.toString p)
adamc@589 349
adamc@589 350 fun jsPat depth inner (p, _) succ fail =
adamc@589 351 case p of
adamc@589 352 PWild => succ
adamc@589 353 | PVar _ => strcat [str ("(_" ^ Int.toString (len + inner) ^ "=d"
adamc@589 354 ^ Int.toString depth ^ ","),
adamc@589 355 succ,
adamc@589 356 str ")"]
adamc@589 357 | PPrim p => strcat [str ("(d" ^ Int.toString depth ^ "=="),
adamc@589 358 jsPrim p,
adamc@589 359 str "?",
adamc@589 360 succ,
adamc@589 361 str ":",
adamc@589 362 fail,
adamc@589 363 str ")"]
adamc@589 364 | PCon (_, PConFfi {mod = "Basis", con = "True", ...}, NONE) =>
adamc@589 365 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 366 succ,
adamc@589 367 str ":",
adamc@589 368 fail,
adamc@589 369 str ")"]
adamc@589 370 | PCon (_, PConFfi {mod = "Basis", con = "False", ...}, NONE) =>
adamc@589 371 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 372 fail,
adamc@589 373 str ":",
adamc@589 374 succ,
adamc@589 375 str ")"]
adamc@596 376 | PCon (Option, _, NONE) =>
adamc@596 377 strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@596 378 fail,
adamc@596 379 str ":",
adamc@596 380 succ,
adamc@596 381 str ")"]
adamc@596 382 | PCon (Option, PConVar n, SOME p) =>
adamc@596 383 (case IM.find (someTs, n) of
adamc@596 384 NONE => raise Fail "Jscomp: Not in someTs"
adamc@596 385 | SOME t =>
adamc@596 386 strcat [str ("(d" ^ Int.toString depth ^ "?("
adamc@596 387 ^ (if isNullable t then
adamc@596 388 "d" ^ Int.toString depth ^ "=d"
adamc@596 389 ^ Int.toString depth ^ ".v,"
adamc@596 390 else
adamc@596 391 "")),
adamc@596 392 jsPat depth inner p succ fail,
adamc@596 393 str "):",
adamc@596 394 fail,
adamc@596 395 str ")"])
adamc@589 396 | PCon (_, pc, NONE) =>
adamc@589 397 strcat [str ("(d" ^ Int.toString depth ^ "=="),
adamc@589 398 patCon pc,
adamc@589 399 str "?",
adamc@589 400 succ,
adamc@589 401 str ":",
adamc@589 402 fail,
adamc@589 403 str ")"]
adamc@589 404 | PCon (_, pc, SOME p) =>
adamc@589 405 strcat [str ("(d" ^ Int.toString depth ^ ".n=="),
adamc@589 406 patCon pc,
adamc@589 407 str ("?(d" ^ Int.toString depth ^ "=d" ^ Int.toString depth ^ ".v,"),
adamc@589 408 jsPat depth inner p succ fail,
adamc@589 409 str "):",
adamc@589 410 fail,
adamc@589 411 str ")"]
adamc@589 412 | PRecord xps =>
adamc@589 413 let
adamc@589 414 val (_, succ) = foldl
adamc@589 415 (fn ((x, p, _), (inner, succ)) =>
adamc@589 416 (inner + E.patBindsN p,
adamc@589 417 strcat [str ("(d" ^ Int.toString (depth+1) ^ "=d"
adamc@589 418 ^ Int.toString depth ^ "._" ^ x ^ ","),
adamc@589 419 jsPat (depth+1) inner p succ fail,
adamc@589 420 str ")"]))
adamc@589 421 (inner, succ) xps
adamc@589 422 in
adamc@589 423 succ
adamc@589 424 end
adamc@589 425 | PNone _ => strcat [str ("(d" ^ Int.toString depth ^ "?"),
adamc@589 426 fail,
adamc@589 427 str ":",
adamc@589 428 succ,
adamc@589 429 str ")"]
adamc@594 430 | PSome (t, p) => strcat (str ("(d" ^ Int.toString depth ^ "?")
adamc@594 431 :: (if isNullable t then
adamc@594 432 [str ("d" ^ Int.toString depth
adamc@594 433 ^ "=d" ^ Int.toString depth ^ ".v")]
adamc@594 434 else
adamc@594 435 [])
adamc@594 436 @ [jsPat depth inner p succ fail,
adamc@594 437 str ":",
adamc@594 438 fail,
adamc@594 439 str ")"])
adamc@589 440
adamc@601 441 val jsifyString = String.translate (fn #"\"" => "\\\""
adamc@601 442 | #"\\" => "\\\\"
adamc@601 443 | ch => String.str ch)
adamc@601 444
adamc@601 445 fun jsifyStringMulti (n, s) =
adamc@601 446 case n of
adamc@601 447 0 => s
adamc@601 448 | _ => jsifyStringMulti (n - 1, jsifyString s)
adamc@601 449
adamc@601 450 fun deStrcat level (all as (e, _)) =
adamc@589 451 case e of
adamc@601 452 EPrim (Prim.String s) => jsifyStringMulti (level, s)
adamc@601 453 | EStrcat (e1, e2) => deStrcat level e1 ^ deStrcat level e2
adamc@601 454 | EFfiApp ("Basis", "jsifyString", [e]) => "\"" ^ deStrcat (level + 1) e ^ "\""
adamc@601 455 | _ => (Print.prefaces "deStrcat" [("e", MonoPrint.p_exp MonoEnv.empty all)];
adamc@601 456 raise Fail "Jscomp: deStrcat")
adamc@590 457
adamc@590 458 val quoteExp = quoteExp loc
adamc@567 459 in
adamc@590 460 (*Print.prefaces "jsE" [("e", MonoPrint.p_exp MonoEnv.empty e)];*)
adamc@590 461
adamc@589 462 case #1 e of
adamc@589 463 EPrim p => (jsPrim p, st)
adamc@589 464 | ERel n =>
adamc@589 465 if n < inner then
adamc@589 466 (str ("_" ^ var n), st)
adamc@589 467 else
adamc@589 468 let
adamc@589 469 val n = n - inner
adamc@589 470 in
adamc@593 471 quoteExp (List.nth (outer, n)) ((ERel (n - skip), loc), st)
adamc@589 472 end
adamc@567 473
adamc@589 474 | ENamed n =>
adamc@589 475 let
adamc@589 476 val st =
adamc@589 477 if IS.member (#included st, n) then
adamc@589 478 st
adamc@589 479 else
adamc@589 480 case IM.find (nameds, n) of
adamc@589 481 NONE => raise Fail "Jscomp: Unbound ENamed"
adamc@589 482 | SOME e =>
adamc@589 483 let
adamc@589 484 val st = {decls = #decls st,
adamc@589 485 script = #script st,
adamc@595 486 included = IS.add (#included st, n),
adamc@595 487 injectors = #injectors st,
adamc@595 488 maxName = #maxName st}
adamc@578 489
adamc@589 490 val (e, st) = jsExp mode skip [] 0 (e, st)
adamc@601 491 val e = deStrcat 0 e
adamc@589 492
adamc@589 493 val sc = "_n" ^ Int.toString n ^ "=" ^ e ^ ";\n"
adamc@589 494 in
adamc@589 495 {decls = #decls st,
adamc@589 496 script = sc :: #script st,
adamc@595 497 included = #included st,
adamc@595 498 injectors = #injectors st,
adamc@595 499 maxName = #maxName st}
adamc@589 500 end
adamc@589 501 in
adamc@589 502 (str ("_n" ^ Int.toString n), st)
adamc@589 503 end
adamc@589 504
adamc@596 505 | ECon (Option, _, NONE) => (str "null", st)
adamc@596 506 | ECon (Option, PConVar n, SOME e) =>
adamc@596 507 let
adamc@596 508 val (e, st) = jsE inner (e, st)
adamc@596 509 in
adamc@596 510 case IM.find (someTs, n) of
adamc@596 511 NONE => raise Fail "Jscomp: Not in someTs [2]"
adamc@596 512 | SOME t =>
adamc@596 513 (if isNullable t then
adamc@596 514 strcat [str "{v:",
adamc@596 515 e,
adamc@596 516 str "}"]
adamc@596 517 else
adamc@596 518 e, st)
adamc@596 519 end
adamc@596 520
adamc@589 521 | ECon (_, pc, NONE) => (patCon pc, st)
adamc@589 522 | ECon (_, pc, SOME e) =>
adamc@589 523 let
adamc@589 524 val (s, st) = jsE inner (e, st)
adamc@589 525 in
adamc@589 526 (strcat [str "{n:",
adamc@589 527 patCon pc,
adamc@589 528 str ",v:",
adamc@589 529 s,
adamc@589 530 str "}"], st)
adamc@589 531 end
adamc@596 532
adamc@589 533 | ENone _ => (str "null", st)
adamc@589 534 | ESome (t, e) =>
adamc@572 535 let
adamc@572 536 val (e, st) = jsE inner (e, st)
adamc@572 537 in
adamc@589 538 (if isNullable t then
adamc@589 539 strcat [str "{v:", e, str "}"]
adamc@589 540 else
adamc@589 541 e, st)
adamc@589 542 end
adamc@589 543
adamc@589 544 | EFfi k =>
adamc@589 545 let
adamc@589 546 val name = case ffi k of
adamc@589 547 NONE => (EM.errorAt loc ("Unsupported FFI identifier " ^ #2 k
adamc@589 548 ^ " in JavaScript");
adamc@589 549 "ERROR")
adamc@589 550 | SOME s => s
adamc@589 551 in
adamc@589 552 (str name, st)
adamc@589 553 end
adamc@589 554 | EFfiApp (m, x, args) =>
adamc@589 555 let
adamc@589 556 val args =
adamc@589 557 case (m, x, args) of
adamc@589 558 ("Basis", "new_client_source", [(EJavaScript (_, e, _), _)]) => [e]
adamc@589 559 | ("Basis", "set_client_source", [e1, (EJavaScript (_, e2, _), _)]) => [e1, e2]
adamc@589 560 | _ => args
adamc@589 561
adamc@589 562 val name = case ffi (m, x) of
adamc@589 563 NONE => (EM.errorAt loc ("Unsupported FFI function "
adamc@589 564 ^ x ^ " in JavaScript");
adamc@589 565 "ERROR")
adamc@589 566 | SOME s => s
adamc@589 567 in
adamc@589 568 case args of
adamc@589 569 [] => (str (name ^ "()"), st)
adamc@589 570 | [e] =>
adamc@589 571 let
adamc@589 572 val (e, st) = jsE inner (e, st)
adamc@589 573 in
adamc@589 574 (strcat [str (name ^ "("),
adamc@589 575 e,
adamc@589 576 str ")"], st)
adamc@589 577 end
adamc@589 578 | e :: es =>
adamc@589 579 let
adamc@589 580 val (e, st) = jsE inner (e, st)
adamc@589 581 val (es, st) = ListUtil.foldlMapConcat
adamc@589 582 (fn (e, st) =>
adamc@589 583 let
adamc@589 584 val (e, st) = jsE inner (e, st)
adamc@589 585 in
adamc@589 586 ([str ",", e], st)
adamc@589 587 end)
adamc@589 588 st es
adamc@589 589 in
adamc@589 590 (strcat (str (name ^ "(")
adamc@589 591 :: e
adamc@589 592 :: es
adamc@589 593 @ [str ")"]), st)
adamc@589 594 end
adamc@589 595 end
adamc@589 596
adamc@589 597 | EApp (e1, e2) =>
adamc@589 598 let
adamc@589 599 val (e1, st) = jsE inner (e1, st)
adamc@589 600 val (e2, st) = jsE inner (e2, st)
adamc@589 601 in
adamc@589 602 (strcat [e1, str "(", e2, str ")"], st)
adamc@589 603 end
adamc@589 604 | EAbs (_, _, _, e) =>
adamc@589 605 let
adamc@589 606 val locals = List.tabulate
adamc@589 607 (varDepth e,
adamc@589 608 fn i => str ("var _" ^ Int.toString (len + inner + i + 1) ^ ";"))
adamc@589 609 val (e, st) = jsE (inner + 1) (e, st)
adamc@589 610 in
adamc@589 611 (strcat (str ("function(_"
adamc@589 612 ^ Int.toString (len + inner)
adamc@589 613 ^ "){")
adamc@589 614 :: locals
adamc@589 615 @ [str "return ",
adamc@589 616 e,
adamc@589 617 str "}"]),
adamc@589 618 st)
adamc@589 619 end
adamc@589 620
adamc@589 621 | EUnop (s, e) =>
adamc@589 622 let
adamc@589 623 val (e, st) = jsE inner (e, st)
adamc@589 624 in
adamc@589 625 (strcat [str ("(" ^ s),
adamc@572 626 e,
adamc@589 627 str ")"],
adamc@589 628 st)
adamc@589 629 end
adamc@589 630 | EBinop (s, e1, e2) =>
adamc@589 631 let
adamc@589 632 val (e1, st) = jsE inner (e1, st)
adamc@589 633 val (e2, st) = jsE inner (e2, st)
adamc@589 634 in
adamc@589 635 (strcat [str "(",
adamc@589 636 e1,
adamc@589 637 str s,
adamc@589 638 e2,
adamc@589 639 str ")"],
adamc@589 640 st)
adamc@589 641 end
adamc@589 642
adamc@589 643 | ERecord [] => (str "null", st)
adamc@589 644 | ERecord [(x, e, _)] =>
adamc@589 645 let
adamc@589 646 val (e, st) = jsE inner (e, st)
adamc@589 647 in
adamc@589 648 (strcat [str "{_x:", e, str "}"], st)
adamc@589 649 end
adamc@589 650 | ERecord ((x, e, _) :: xes) =>
adamc@589 651 let
adamc@589 652 val (e, st) = jsE inner (e, st)
adamc@589 653
adamc@589 654 val (es, st) =
adamc@589 655 foldr (fn ((x, e, _), (es, st)) =>
adamc@589 656 let
adamc@589 657 val (e, st) = jsE inner (e, st)
adamc@589 658 in
adamc@589 659 (str (",_" ^ x ^ ":")
adamc@589 660 :: e
adamc@589 661 :: es,
adamc@589 662 st)
adamc@589 663 end)
adamc@589 664 ([str "}"], st) xes
adamc@589 665 in
adamc@589 666 (strcat (str ("{_" ^ x ^ ":")
adamc@589 667 :: e
adamc@589 668 :: es),
adamc@589 669 st)
adamc@589 670 end
adamc@589 671 | EField (e, x) =>
adamc@589 672 let
adamc@589 673 val (e, st) = jsE inner (e, st)
adamc@589 674 in
adamc@589 675 (strcat [e,
adamc@589 676 str ("._" ^ x)], st)
adamc@589 677 end
adamc@589 678
adamc@591 679 | ECase (e', pes, {result, ...}) =>
adamc@591 680 if closedUpto inner e andalso List.all (fn (_, e) => closedUpto inner e) pes then
adamc@593 681 let
adamc@593 682 val (e', st) = quoteExp result ((ERel 0, loc), st)
adamc@593 683 in
adamc@593 684 ((ELet ("js", result, e, e'), loc),
adamc@593 685 st)
adamc@593 686 end
adamc@591 687 else
adamc@591 688 let
adamc@591 689 val plen = length pes
adamc@589 690
adamc@591 691 val (cases, st) = ListUtil.foldliMap
adamc@591 692 (fn (i, (p, e), st) =>
adamc@591 693 let
adamc@591 694 val (e, st) = jsE (inner + E.patBindsN p) (e, st)
adamc@591 695 val fail =
adamc@591 696 if i = plen - 1 then
adamc@591 697 str "pf()"
adamc@591 698 else
adamc@591 699 str ("c" ^ Int.toString (i+1) ^ "()")
adamc@591 700 val c = jsPat 0 inner p e fail
adamc@591 701 in
adamc@591 702 (strcat [str ("c" ^ Int.toString i ^ "=function(){return "),
adamc@591 703 c,
adamc@591 704 str "},"],
adamc@591 705 st)
adamc@591 706 end)
adamc@591 707 st pes
adamc@589 708
adamc@591 709 val (e, st) = jsE inner (e', st)
adamc@591 710 in
adamc@591 711 (strcat (str "("
adamc@591 712 :: List.revAppend (cases,
adamc@591 713 [str "d0=",
adamc@591 714 e,
adamc@591 715 str ",c0())"])), st)
adamc@591 716 end
adamc@589 717
adamc@589 718 | EStrcat (e1, e2) =>
adamc@589 719 let
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@589 723 (strcat [str "(", e1, str "+", e2, str ")"], st)
adamc@589 724 end
adamc@589 725
adamc@589 726 | EError (e, _) =>
adamc@589 727 let
adamc@589 728 val (e, st) = jsE inner (e, st)
adamc@589 729 in
adamc@589 730 (strcat [str "alert(\"ERROR: \"+", e, str ")"],
adamc@589 731 st)
adamc@589 732 end
adamc@589 733
adamc@589 734 | EWrite e =>
adamc@589 735 let
adamc@589 736 val (e, st) = jsE inner (e, st)
adamc@589 737 in
adamc@589 738 (strcat [str "document.write(",
adamc@589 739 e,
adamc@589 740 str ".v)"], st)
adamc@589 741 end
adamc@589 742
adamc@589 743 | ESeq (e1, e2) =>
adamc@589 744 let
adamc@589 745 val (e1, st) = jsE inner (e1, st)
adamc@589 746 val (e2, st) = jsE inner (e2, st)
adamc@589 747 in
adamc@589 748 (strcat [str "(", e1, str ",", e2, str ")"], st)
adamc@589 749 end
adamc@589 750 | ELet (_, _, e1, e2) =>
adamc@589 751 let
adamc@589 752 val (e1, st) = jsE inner (e1, st)
adamc@589 753 val (e2, st) = jsE (inner + 1) (e2, st)
adamc@589 754 in
adamc@589 755 (strcat [str ("(_" ^ Int.toString (len + inner) ^ "="),
adamc@589 756 e1,
adamc@589 757 str ",",
adamc@589 758 e2,
adamc@572 759 str ")"], st)
adamc@572 760 end
adamc@589 761
adamc@601 762 | EJavaScript (Source _, _, SOME _) => (e, st)
adamc@603 763 | EJavaScript (_, _, SOME e) =>
adamc@603 764 (strcat [str "\"cr(\"+ca(function(){return ",
adamc@603 765 e,
adamc@603 766 str "})+\")\""],
adamc@603 767 st)
adamc@590 768
adamc@589 769 | EClosure _ => unsupported "EClosure"
adamc@589 770 | EQuery _ => unsupported "Query"
adamc@589 771 | EDml _ => unsupported "DML"
adamc@589 772 | ENextval _ => unsupported "Nextval"
adamc@589 773 | EUnurlify _ => unsupported "EUnurlify"
adamc@601 774 | EJavaScript (_, e, _) =>
adamc@601 775 let
adamc@601 776 val (e, st) = jsE inner (e, st)
adamc@601 777 in
adamc@603 778 (strcat [str "\"cr(\"+ca(function(){return ",
adamc@603 779 e,
adamc@603 780 str "})+\")\""],
adamc@603 781 st)
adamc@601 782 end
adamc@590 783
adamc@589 784 | ESignalReturn e =>
adamc@572 785 let
adamc@572 786 val (e, st) = jsE inner (e, st)
adamc@572 787 in
adamc@589 788 (strcat [str "sr(",
adamc@589 789 e,
adamc@589 790 str ")"],
adamc@589 791 st)
adamc@589 792 end
adamc@589 793 | ESignalBind (e1, e2) =>
adamc@589 794 let
adamc@589 795 val (e1, st) = jsE inner (e1, st)
adamc@589 796 val (e2, st) = jsE inner (e2, st)
adamc@589 797 in
adamc@589 798 (strcat [str "sb(",
adamc@589 799 e1,
adamc@589 800 str ",",
adamc@589 801 e2,
adamc@589 802 str ")"],
adamc@589 803 st)
adamc@589 804 end
adamc@589 805 | ESignalSource e =>
adamc@589 806 let
adamc@589 807 val (e, st) = jsE inner (e, st)
adamc@589 808 in
adamc@589 809 (strcat [str "ss(",
adamc@589 810 e,
adamc@589 811 str ")"],
adamc@589 812 st)
adamc@572 813 end
adamc@608 814
adamc@609 815 | EServerCall (x, es, ek, _) =>
adamc@609 816 let
adamc@609 817 val (ek, st) = jsE inner (ek, st)
adamc@609 818 in
adamc@609 819 (strcat [str ("rc(\"" ^ !Monoize.urlPrefix ^ x ^ "\","),
adamc@609 820 ek,
adamc@609 821 str ")"],
adamc@609 822 st)
adamc@609 823 end
adamc@567 824 end
adamc@589 825 in
adamc@589 826 jsE
adamc@589 827 end
adamc@567 828
adamc@589 829 val decl : state -> decl -> decl * state =
adamc@589 830 U.Decl.foldMapB {typ = fn x => x,
adamc@589 831 exp = fn (env, e, st) =>
adamc@589 832 let
adamc@589 833 fun doCode m skip env orig e =
adamc@589 834 let
adamc@589 835 val len = length env
adamc@589 836 fun str s = (EPrim (Prim.String s), #2 e)
adamc@567 837
adamc@589 838 val locals = List.tabulate
adamc@589 839 (varDepth e,
adamc@589 840 fn i => str ("var _" ^ Int.toString (len + i) ^ ";"))
adamc@589 841 val (e, st) = jsExp m skip env 0 (e, st)
adamc@589 842 in
adamc@589 843 (EJavaScript (m, orig, SOME (strcat (#2 e) (locals @ [e]))), st)
adamc@589 844 end
adamc@589 845 in
adamc@589 846 case e of
adamc@591 847 EJavaScript (m, orig as (EAbs (_, t, _, e), _), NONE) =>
adamc@591 848 doCode m 1 (t :: env) orig e
adamc@591 849 | EJavaScript (m, orig, NONE) =>
adamc@591 850 doCode m 0 env orig orig
adamc@589 851 | _ => (e, st)
adamc@589 852 end,
adamc@589 853 decl = fn (_, e, st) => (e, st),
adamc@589 854 bind = fn (env, U.Decl.RelE (_, t)) => t :: env
adamc@589 855 | (env, _) => env}
adamc@589 856 []
adamc@567 857
adamc@567 858 fun doDecl (d, st) =
adamc@567 859 let
adamc@567 860 val (d, st) = decl st d
adamc@567 861 in
adamc@567 862 (List.revAppend (#decls st, [d]),
adamc@567 863 {decls = [],
adamc@589 864 script = #script st,
adamc@595 865 included = #included st,
adamc@595 866 injectors = #injectors st,
adamc@595 867 maxName = #maxName st})
adamc@567 868 end
adamc@567 869
adamc@567 870 val (ds, st) = ListUtil.foldlMapConcat doDecl
adamc@567 871 {decls = [],
adamc@589 872 script = [],
adamc@595 873 included = IS.empty,
adamc@595 874 injectors = IM.empty,
adamc@595 875 maxName = U.File.maxName file + 1}
adamc@567 876 file
adamc@569 877
adamc@569 878 val inf = TextIO.openIn (OS.Path.joinDirFile {dir = Config.libJs, file = "urweb.js"})
adamc@569 879 fun lines acc =
adamc@569 880 case TextIO.inputLine inf of
adamc@569 881 NONE => String.concat (rev acc)
adamc@569 882 | SOME line => lines (line :: acc)
adamc@569 883 val lines = lines []
adamc@567 884 in
adamc@569 885 TextIO.closeIn inf;
adamc@589 886 (DJavaScript (lines ^ String.concat (rev (#script st))), ErrorMsg.dummySpan) :: ds
adamc@567 887 end
adamc@567 888
adamc@567 889 end