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annotate src/cjr_print.sml @ 275:73456bfde988

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Validating schema of a live database
author Adam Chlipala <adamc@hcoop.net>
date Tue, 02 Sep 2008 14:40:57 -0400
parents e4baf03a3a64
children ed4af33681d8
rev   line source
adamc@29 1 (* Copyright (c) 2008, Adam Chlipala
adamc@29 2 * All rights reserved.
adamc@29 3 *
adamc@29 4 * Redistribution and use in source and binary forms, with or without
adamc@29 5 * modification, are permitted provided that the following conditions are met:
adamc@29 6 *
adamc@29 7 * - Redistributions of source code must retain the above copyright notice,
adamc@29 8 * this list of conditions and the following disclaimer.
adamc@29 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@29 10 * this list of conditions and the following disclaimer in the documentation
adamc@29 11 * and/or other materials provided with the distribution.
adamc@29 12 * - The names of contributors may not be used to endorse or promote products
adamc@29 13 * derived from this software without specific prior written permission.
adamc@29 14 *
adamc@29 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@29 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@29 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@29 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@29 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@29 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@29 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@29 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@29 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@29 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@29 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@29 26 *)
adamc@29 27
adamc@29 28 (* Pretty-printing C jr. *)
adamc@29 29
adamc@29 30 structure CjrPrint :> CJR_PRINT = struct
adamc@29 31
adamc@29 32 open Print.PD
adamc@29 33 open Print
adamc@29 34
adamc@29 35 open Cjr
adamc@29 36
adamc@269 37 val dummyt = (TRecord 0, ErrorMsg.dummySpan)
adamc@269 38
adamc@29 39 structure E = CjrEnv
adamc@29 40 structure EM = ErrorMsg
adamc@29 41
adamc@144 42 structure SK = struct
adamc@144 43 type ord_key = string
adamc@144 44 val compare = String.compare
adamc@144 45 end
adamc@144 46
adamc@144 47 structure SS = BinarySetFn(SK)
adamc@144 48 structure SM = BinaryMapFn(SK)
adamc@144 49 structure IS = IntBinarySet
adamc@144 50
adamc@144 51 structure CM = BinaryMapFn(struct
adamc@144 52 type ord_key = char
adamc@144 53 val compare = Char.compare
adamc@144 54 end)
adamc@144 55
adamc@29 56 val debug = ref false
adamc@29 57
adamc@196 58 val dummyTyp = (TDatatype (Enum, 0, ref []), ErrorMsg.dummySpan)
adamc@29 59
adamc@29 60 fun p_typ' par env (t, loc) =
adamc@29 61 case t of
adamc@269 62 TFun (t1, t2) => parenIf par (box [p_typ' true env t2,
adamc@109 63 space,
adamc@109 64 string "(*)",
adamc@109 65 space,
adamc@109 66 string "(",
adamc@109 67 p_typ env t1,
adamc@109 68 string ")"])
adamc@29 69 | TRecord i => box [string "struct",
adamc@29 70 space,
adamc@29 71 string "__lws_",
adamc@29 72 string (Int.toString i)]
adamc@188 73 | TDatatype (Enum, n, _) =>
adamc@188 74 (box [string "enum",
adamc@188 75 space,
adamc@188 76 string ("__lwe_" ^ #1 (E.lookupDatatype env n) ^ "_" ^ Int.toString n)]
adamc@188 77 handle CjrEnv.UnboundNamed _ => string ("__lwd_UNBOUND__" ^ Int.toString n))
adamc@198 78 | TDatatype (Option, n, xncs) =>
adamc@198 79 (case ListUtil.search #3 (!xncs) of
adamc@198 80 NONE => raise Fail "CjrPrint: TDatatype marked Option has no constructor with an argument"
adamc@198 81 | SOME t =>
adamc@198 82 case #1 t of
adamc@198 83 TDatatype _ => p_typ' par env t
adamc@199 84 | TFfi ("Basis", "string") => p_typ' par env t
adamc@198 85 | _ => box [p_typ' par env t,
adamc@198 86 string "*"])
adamc@188 87 | TDatatype (Default, n, _) =>
adamc@165 88 (box [string "struct",
adamc@165 89 space,
adamc@166 90 string ("__lwd_" ^ #1 (E.lookupDatatype env n) ^ "_" ^ Int.toString n ^ "*")]
adamc@166 91 handle CjrEnv.UnboundNamed _ => string ("__lwd_UNBOUND__" ^ Int.toString n))
adamc@53 92 | TFfi (m, x) => box [string "lw_", string m, string "_", string x]
adamc@29 93
adamc@29 94 and p_typ env = p_typ' false env
adamc@29 95
adamc@29 96 fun p_rel env n = string ("__lwr_" ^ #1 (E.lookupERel env n) ^ "_" ^ Int.toString (E.countERels env - n - 1))
adamc@29 97 handle CjrEnv.UnboundRel _ => string ("__lwr_UNBOUND_" ^ Int.toString (E.countERels env - n - 1))
adamc@29 98
adamc@109 99 fun p_enamed env n =
adamc@109 100 string ("__lwn_" ^ #1 (E.lookupENamed env n) ^ "_" ^ Int.toString n)
adamc@109 101 handle CjrEnv.UnboundNamed _ => string ("__lwn_UNBOUND_" ^ Int.toString n)
adamc@109 102
adamc@182 103 fun p_con_named env n =
adamc@182 104 string ("__lwc_" ^ #1 (E.lookupConstructor env n) ^ "_" ^ Int.toString n)
adamc@182 105 handle CjrEnv.UnboundNamed _ => string ("__lwc_UNBOUND_" ^ Int.toString n)
adamc@182 106
adamc@182 107 fun p_pat_preamble env (p, _) =
adamc@182 108 case p of
adamc@182 109 PWild => (box [],
adamc@182 110 env)
adamc@182 111 | PVar (x, t) => (box [p_typ env t,
adamc@182 112 space,
adamc@182 113 string "__lwr_",
adamc@182 114 string x,
adamc@182 115 string "_",
adamc@182 116 string (Int.toString (E.countERels env)),
adamc@182 117 string ";",
adamc@182 118 newline],
adamc@196 119 E.pushERel env x t)
adamc@182 120 | PPrim _ => (box [], env)
adamc@188 121 | PCon (_, _, NONE) => (box [], env)
adamc@188 122 | PCon (_, _, SOME p) => p_pat_preamble env p
adamc@182 123 | PRecord xps =>
adamc@182 124 foldl (fn ((_, p, _), (pp, env)) =>
adamc@182 125 let
adamc@182 126 val (pp', env) = p_pat_preamble env p
adamc@182 127 in
adamc@182 128 (box [pp', pp], env)
adamc@182 129 end) (box [], env) xps
adamc@182 130
adamc@182 131 fun p_patCon env pc =
adamc@182 132 case pc of
adamc@182 133 PConVar n => p_con_named env n
adamc@186 134 | PConFfi {mod = m, con, ...} => string ("lw_" ^ m ^ "_" ^ con)
adamc@182 135
adamc@182 136 fun p_pat (env, exit, depth) (p, _) =
adamc@182 137 case p of
adamc@182 138 PWild =>
adamc@182 139 (box [], env)
adamc@182 140 | PVar (x, t) =>
adamc@182 141 (box [string "__lwr_",
adamc@182 142 string x,
adamc@182 143 string "_",
adamc@182 144 string (Int.toString (E.countERels env)),
adamc@182 145 space,
adamc@182 146 string "=",
adamc@182 147 space,
adamc@182 148 string "disc",
adamc@182 149 string (Int.toString depth),
adamc@182 150 string ";"],
adamc@182 151 E.pushERel env x t)
adamc@182 152 | PPrim (Prim.Int n) =>
adamc@182 153 (box [string "if",
adamc@182 154 space,
adamc@182 155 string "(disc",
adamc@182 156 string (Int.toString depth),
adamc@182 157 space,
adamc@182 158 string "!=",
adamc@182 159 space,
adamc@182 160 Prim.p_t (Prim.Int n),
adamc@182 161 string ")",
adamc@182 162 space,
adamc@182 163 exit],
adamc@182 164 env)
adamc@182 165 | PPrim (Prim.String s) =>
adamc@182 166 (box [string "if",
adamc@182 167 space,
adamc@182 168 string "(strcmp(disc",
adamc@182 169 string (Int.toString depth),
adamc@182 170 string ",",
adamc@182 171 space,
adamc@182 172 Prim.p_t (Prim.String s),
adamc@182 173 string "))",
adamc@182 174 space,
adamc@182 175 exit],
adamc@182 176 env)
adamc@182 177 | PPrim _ => raise Fail "CjrPrint: Disallowed PPrim primitive"
adamc@182 178
adamc@188 179 | PCon (dk, pc, po) =>
adamc@182 180 let
adamc@182 181 val (p, env) =
adamc@182 182 case po of
adamc@182 183 NONE => (box [], env)
adamc@182 184 | SOME p =>
adamc@182 185 let
adamc@182 186 val (p, env) = p_pat (env, exit, depth + 1) p
adamc@182 187
adamc@182 188 val (x, to) = case pc of
adamc@182 189 PConVar n =>
adamc@182 190 let
adamc@182 191 val (x, to, _) = E.lookupConstructor env n
adamc@182 192 in
adamc@196 193 ("lw_" ^ x, to)
adamc@182 194 end
adamc@188 195 | PConFfi {mod = m, con, arg, ...} =>
adamc@188 196 ("lw_" ^ m ^ "_" ^ con, arg)
adamc@182 197
adamc@182 198 val t = case to of
adamc@182 199 NONE => raise Fail "CjrPrint: Constructor mismatch"
adamc@182 200 | SOME t => t
adamc@182 201 in
adamc@182 202 (box [string "{",
adamc@182 203 newline,
adamc@182 204 p_typ env t,
adamc@182 205 space,
adamc@182 206 string "disc",
adamc@182 207 string (Int.toString (depth + 1)),
adamc@182 208 space,
adamc@182 209 string "=",
adamc@182 210 space,
adamc@198 211 case dk of
adamc@198 212 Enum => raise Fail "CjrPrint: Looking at argument of no-argument constructor"
adamc@198 213 | Default => box [string "disc",
adamc@198 214 string (Int.toString depth),
adamc@198 215 string "->data.",
adamc@198 216 string x]
adamc@198 217 | Option =>
adamc@198 218 case #1 t of
adamc@198 219 TDatatype _ => box [string "disc",
adamc@198 220 string (Int.toString depth)]
adamc@199 221 | TFfi ("Basis", "string") => box [string "disc",
adamc@199 222 string (Int.toString depth)]
adamc@198 223 | _ => box [string "*disc",
adamc@198 224 string (Int.toString depth)],
adamc@182 225 string ";",
adamc@182 226 newline,
adamc@182 227 p,
adamc@182 228 newline,
adamc@182 229 string "}"],
adamc@182 230 env)
adamc@182 231 end
adamc@182 232 in
adamc@182 233 (box [string "if",
adamc@182 234 space,
adamc@182 235 string "(disc",
adamc@182 236 string (Int.toString depth),
adamc@198 237 case (dk, po) of
adamc@198 238 (Enum, _) => box [space,
adamc@198 239 string "!=",
adamc@198 240 space,
adamc@198 241 p_patCon env pc]
adamc@198 242 | (Default, _) => box [string "->tag",
adamc@198 243 space,
adamc@198 244 string "!=",
adamc@198 245 space,
adamc@198 246 p_patCon env pc]
adamc@198 247 | (Option, NONE) => box [space,
adamc@198 248 string "!=",
adamc@198 249 space,
adamc@198 250 string "NULL"]
adamc@198 251 | (Option, SOME _) => box [space,
adamc@198 252 string "==",
adamc@198 253 space,
adamc@198 254 string "NULL"],
adamc@182 255 string ")",
adamc@182 256 space,
adamc@182 257 exit,
adamc@182 258 newline,
adamc@182 259 p],
adamc@182 260 env)
adamc@182 261 end
adamc@182 262
adamc@182 263 | PRecord xps =>
adamc@182 264 let
adamc@182 265 val (xps, env) =
adamc@182 266 ListUtil.foldlMap (fn ((x, p, t), env) =>
adamc@182 267 let
adamc@182 268 val (p, env) = p_pat (env, exit, depth + 1) p
adamc@182 269
adamc@182 270 val p = box [string "{",
adamc@182 271 newline,
adamc@182 272 p_typ env t,
adamc@182 273 space,
adamc@182 274 string "disc",
adamc@182 275 string (Int.toString (depth + 1)),
adamc@182 276 space,
adamc@182 277 string "=",
adamc@182 278 space,
adamc@182 279 string "disc",
adamc@182 280 string (Int.toString depth),
adamc@196 281 string ".__lwf_",
adamc@182 282 string x,
adamc@182 283 string ";",
adamc@182 284 newline,
adamc@182 285 p,
adamc@182 286 newline,
adamc@182 287 string "}"]
adamc@182 288 in
adamc@182 289 (p, env)
adamc@182 290 end) env xps
adamc@182 291 in
adamc@182 292 (p_list_sep newline (fn x => x) xps,
adamc@182 293 env)
adamc@182 294 end
adamc@182 295
adamc@182 296 local
adamc@182 297 val count = ref 0
adamc@182 298 in
adamc@182 299 fun newGoto () =
adamc@182 300 let
adamc@182 301 val r = !count
adamc@182 302 in
adamc@182 303 count := r + 1;
adamc@182 304 string ("L" ^ Int.toString r)
adamc@182 305 end
adamc@182 306 end
adamc@182 307
adamc@185 308 fun patConInfo env pc =
adamc@185 309 case pc of
adamc@185 310 PConVar n =>
adamc@185 311 let
adamc@185 312 val (x, _, dn) = E.lookupConstructor env n
adamc@185 313 val (dx, _) = E.lookupDatatype env dn
adamc@185 314 in
adamc@185 315 ("__lwd_" ^ dx ^ "_" ^ Int.toString dn,
adamc@196 316 "__lwc_" ^ x ^ "_" ^ Int.toString n,
adamc@196 317 "lw_" ^ x)
adamc@185 318 end
adamc@186 319 | PConFfi {mod = m, datatyp, con, ...} =>
adamc@185 320 ("lw_" ^ m ^ "_" ^ datatyp,
adamc@196 321 "lw_" ^ m ^ "_" ^ con,
adamc@196 322 "lw_" ^ con)
adamc@185 323
adamc@182 324 fun p_exp' par env (e, loc) =
adamc@29 325 case e of
adamc@29 326 EPrim p => Prim.p_t p
adamc@29 327 | ERel n => p_rel env n
adamc@109 328 | ENamed n => p_enamed env n
adamc@188 329 | ECon (Enum, pc, _) => p_patCon env pc
adamc@198 330 | ECon (Option, pc, NONE) => string "NULL"
adamc@198 331 | ECon (Option, pc, SOME e) =>
adamc@198 332 let
adamc@198 333 val to = case pc of
adamc@198 334 PConVar n => #2 (E.lookupConstructor env n)
adamc@198 335 | PConFfi {arg, ...} => arg
adamc@198 336
adamc@198 337 val t = case to of
adamc@198 338 NONE => raise Fail "CjrPrint: ECon argument status mismatch"
adamc@198 339 | SOME t => t
adamc@198 340 in
adamc@198 341 case #1 t of
adamc@198 342 TDatatype _ => p_exp' par env e
adamc@199 343 | TFfi ("Basis", "string") => p_exp' par env e
adamc@198 344 | _ => box [string "({",
adamc@198 345 newline,
adamc@198 346 p_typ env t,
adamc@198 347 space,
adamc@198 348 string "*tmp",
adamc@198 349 space,
adamc@198 350 string "=",
adamc@198 351 space,
adamc@198 352 string "lw_malloc(ctx, sizeof(",
adamc@198 353 p_typ env t,
adamc@198 354 string "));",
adamc@198 355 newline,
adamc@198 356 string "*tmp",
adamc@198 357 space,
adamc@198 358 string "=",
adamc@198 359 p_exp' par env e,
adamc@198 360 string ";",
adamc@198 361 newline,
adamc@198 362 string "tmp;",
adamc@198 363 newline,
adamc@198 364 string "})"]
adamc@198 365 end
adamc@188 366 | ECon (Default, pc, eo) =>
adamc@181 367 let
adamc@196 368 val (xd, xc, xn) = patConInfo env pc
adamc@181 369 in
adamc@182 370 box [string "({",
adamc@181 371 newline,
adamc@181 372 string "struct",
adamc@181 373 space,
adamc@185 374 string xd,
adamc@181 375 space,
adamc@181 376 string "*tmp",
adamc@181 377 space,
adamc@181 378 string "=",
adamc@181 379 space,
adamc@185 380 string "lw_malloc(ctx, sizeof(struct ",
adamc@185 381 string xd,
adamc@181 382 string "));",
adamc@181 383 newline,
adamc@181 384 string "tmp->tag",
adamc@181 385 space,
adamc@181 386 string "=",
adamc@181 387 space,
adamc@185 388 string xc,
adamc@181 389 string ";",
adamc@181 390 newline,
adamc@181 391 case eo of
adamc@181 392 NONE => box []
adamc@185 393 | SOME e => box [string "tmp->data.",
adamc@196 394 string xn,
adamc@181 395 space,
adamc@181 396 string "=",
adamc@181 397 space,
adamc@181 398 p_exp env e,
adamc@181 399 string ";",
adamc@181 400 newline],
adamc@181 401 string "tmp;",
adamc@181 402 newline,
adamc@181 403 string "})"]
adamc@181 404 end
adamc@109 405
adamc@53 406 | EFfi (m, x) => box [string "lw_", string m, string "_", string x]
adamc@53 407 | EFfiApp (m, x, es) => box [string "lw_",
adamc@53 408 string m,
adamc@53 409 string "_",
adamc@53 410 string x,
adamc@117 411 string "(ctx, ",
adamc@53 412 p_list (p_exp env) es,
adamc@53 413 string ")"]
adamc@129 414 | EApp (e1, e2) =>
adamc@129 415 let
adamc@129 416 fun unravel (f, acc) =
adamc@129 417 case #1 f of
adamc@129 418 EApp (f', arg) => unravel (f', arg :: acc)
adamc@129 419 | _ => (f, acc)
adamc@129 420
adamc@129 421 val (f, args) = unravel (e1, [e2])
adamc@129 422 in
adamc@129 423 parenIf par (box [p_exp' true env e1,
adamc@129 424 string "(ctx,",
adamc@129 425 space,
adamc@129 426 p_list_sep (box [string ",", space]) (p_exp env) args,
adamc@129 427 string ")"])
adamc@129 428 end
adamc@29 429
adamc@29 430 | ERecord (i, xes) => box [string "({",
adamc@29 431 space,
adamc@29 432 string "struct",
adamc@29 433 space,
adamc@29 434 string ("__lws_" ^ Int.toString i),
adamc@29 435 space,
adamc@181 436 string "tmp",
adamc@29 437 space,
adamc@29 438 string "=",
adamc@29 439 space,
adamc@29 440 string "{",
adamc@29 441 p_list (fn (_, e) =>
adamc@29 442 p_exp env e) xes,
adamc@29 443 string "};",
adamc@29 444 space,
adamc@181 445 string "tmp;",
adamc@29 446 space,
adamc@29 447 string "})" ]
adamc@29 448 | EField (e, x) =>
adamc@29 449 box [p_exp' true env e,
adamc@182 450 string ".__lwf_",
adamc@29 451 string x]
adamc@29 452
adamc@182 453 | ECase (e, pes, {disc, result}) =>
adamc@182 454 let
adamc@182 455 val final = newGoto ()
adamc@182 456
adamc@182 457 val body = foldl (fn ((p, e), body) =>
adamc@182 458 let
adamc@182 459 val exit = newGoto ()
adamc@182 460 val (pr, _) = p_pat_preamble env p
adamc@182 461 val (p, env) = p_pat (env,
adamc@182 462 box [string "goto",
adamc@182 463 space,
adamc@182 464 exit,
adamc@182 465 string ";"],
adamc@182 466 0) p
adamc@182 467 in
adamc@182 468 box [body,
adamc@182 469 box [string "{",
adamc@182 470 newline,
adamc@182 471 pr,
adamc@182 472 newline,
adamc@182 473 p,
adamc@182 474 newline,
adamc@182 475 string "result",
adamc@182 476 space,
adamc@182 477 string "=",
adamc@182 478 space,
adamc@182 479 p_exp env e,
adamc@182 480 string ";",
adamc@182 481 newline,
adamc@182 482 string "goto",
adamc@182 483 space,
adamc@182 484 final,
adamc@182 485 string ";",
adamc@182 486 newline,
adamc@182 487 string "}"],
adamc@182 488 newline,
adamc@182 489 exit,
adamc@182 490 string ":",
adamc@182 491 newline]
adamc@182 492 end) (box []) pes
adamc@182 493 in
adamc@182 494 box [string "({",
adamc@182 495 newline,
adamc@182 496 p_typ env disc,
adamc@182 497 space,
adamc@182 498 string "disc0",
adamc@182 499 space,
adamc@182 500 string "=",
adamc@182 501 space,
adamc@182 502 p_exp env e,
adamc@182 503 string ";",
adamc@182 504 newline,
adamc@182 505 p_typ env result,
adamc@182 506 space,
adamc@182 507 string "result;",
adamc@182 508 newline,
adamc@182 509 body,
adamc@182 510 string "lw_error(ctx, FATAL, \"",
adamc@182 511 string (ErrorMsg.spanToString loc),
adamc@182 512 string ": pattern match failure\");",
adamc@182 513 newline,
adamc@182 514 final,
adamc@182 515 string ":",
adamc@182 516 space,
adamc@182 517 string "result;",
adamc@182 518 newline,
adamc@182 519 string "})"]
adamc@182 520 end
adamc@181 521
adamc@117 522 | EWrite e => box [string "(lw_write(ctx, ",
adamc@102 523 p_exp env e,
adamc@102 524 string "), lw_unit_v)"]
adamc@102 525
adamc@106 526 | ESeq (e1, e2) => box [string "(",
adamc@106 527 p_exp env e1,
adamc@106 528 string ",",
adamc@106 529 space,
adamc@106 530 p_exp env e2,
adamc@106 531 string ")"]
adamc@269 532 | ELet (x, t, e1, e2) => box [string "({",
adamc@269 533 newline,
adamc@269 534 p_typ env t,
adamc@269 535 space,
adamc@272 536 string "__lwr_",
adamc@272 537 string x,
adamc@272 538 string "_",
adamc@272 539 string (Int.toString (E.countERels env)),
adamc@269 540 space,
adamc@269 541 string "=",
adamc@269 542 space,
adamc@269 543 p_exp env e1,
adamc@269 544 string ";",
adamc@269 545 newline,
adamc@269 546 p_exp (E.pushERel env x t) e2,
adamc@269 547 string ";",
adamc@269 548 newline,
adamc@269 549 string "})"]
adamc@269 550
adamc@269 551 | EQuery {exps, tables, rnum, state, query, body, initial} =>
adamc@272 552 string "(lw_error(ctx, FATAL, \"I would have run a query.\"), NULL)"
adamc@106 553
adamc@29 554 and p_exp env = p_exp' false env
adamc@29 555
adamc@129 556 fun p_fun env (fx, n, args, ran, e) =
adamc@129 557 let
adamc@129 558 val nargs = length args
adamc@129 559 val env' = foldl (fn ((x, dom), env) => E.pushERel env x dom) env args
adamc@129 560 in
adamc@129 561 box [string "static",
adamc@129 562 space,
adamc@129 563 p_typ env ran,
adamc@129 564 space,
adamc@129 565 string ("__lwn_" ^ fx ^ "_" ^ Int.toString n),
adamc@129 566 string "(",
adamc@129 567 p_list_sep (box [string ",", space]) (fn x => x)
adamc@129 568 (string "lw_context ctx" :: ListUtil.mapi (fn (i, (_, dom)) =>
adamc@129 569 box [p_typ env dom,
adamc@129 570 space,
adamc@129 571 p_rel env' (nargs - i - 1)]) args),
adamc@129 572 string ")",
adamc@129 573 space,
adamc@129 574 string "{",
adamc@129 575 newline,
adamc@129 576 box[string "return(",
adamc@129 577 p_exp env' e,
adamc@129 578 string ");"],
adamc@129 579 newline,
adamc@129 580 string "}"]
adamc@129 581 end
adamc@129 582
adamc@129 583 fun p_decl env (dAll as (d, _) : decl) =
adamc@29 584 case d of
adamc@29 585 DStruct (n, xts) =>
adamc@196 586 let
adamc@196 587 val env = E.declBinds env dAll
adamc@196 588 in
adamc@196 589 box [string "struct",
adamc@196 590 space,
adamc@196 591 string ("__lws_" ^ Int.toString n),
adamc@196 592 space,
adamc@196 593 string "{",
adamc@196 594 newline,
adamc@196 595 p_list_sep (box []) (fn (x, t) => box [p_typ env t,
adamc@196 596 space,
adamc@196 597 string "__lwf_",
adamc@196 598 string x,
adamc@196 599 string ";",
adamc@196 600 newline]) xts,
adamc@196 601 string "};"]
adamc@196 602 end
adamc@188 603 | DDatatype (Enum, x, n, xncs) =>
adamc@188 604 box [string "enum",
adamc@188 605 space,
adamc@188 606 string ("__lwe_" ^ x ^ "_" ^ Int.toString n),
adamc@188 607 space,
adamc@188 608 string "{",
adamc@188 609 space,
adamc@188 610 p_list_sep (box [string ",", space]) (fn (x, n, _) => string ("__lwc_" ^ x ^ "_" ^ Int.toString n)) xncs,
adamc@188 611 space,
adamc@188 612 string "};"]
adamc@198 613 | DDatatype (Option, _, _, _) => box []
adamc@188 614 | DDatatype (Default, x, n, xncs) =>
adamc@165 615 let
adamc@165 616 val xncsArgs = List.mapPartial (fn (x, n, NONE) => NONE
adamc@165 617 | (x, n, SOME t) => SOME (x, n, t)) xncs
adamc@165 618 in
adamc@165 619 box [string "enum",
adamc@165 620 space,
adamc@165 621 string ("__lwe_" ^ x ^ "_" ^ Int.toString n),
adamc@165 622 space,
adamc@165 623 string "{",
adamc@165 624 space,
adamc@165 625 p_list_sep (box [string ",", space]) (fn (x, n, _) => string ("__lwc_" ^ x ^ "_" ^ Int.toString n)) xncs,
adamc@165 626 space,
adamc@165 627 string "};",
adamc@165 628 newline,
adamc@165 629 newline,
adamc@165 630 string "struct",
adamc@165 631 space,
adamc@167 632 string ("__lwd_" ^ x ^ "_" ^ Int.toString n),
adamc@165 633 space,
adamc@165 634 string "{",
adamc@165 635 newline,
adamc@165 636 string "enum",
adamc@165 637 space,
adamc@165 638 string ("__lwe_" ^ x ^ "_" ^ Int.toString n),
adamc@165 639 space,
adamc@165 640 string "tag;",
adamc@165 641 newline,
adamc@165 642 box (case xncsArgs of
adamc@165 643 [] => []
adamc@165 644 | _ => [string "union",
adamc@165 645 space,
adamc@165 646 string "{",
adamc@165 647 newline,
adamc@165 648 p_list_sep newline (fn (x, n, t) => box [p_typ env t,
adamc@165 649 space,
adamc@196 650 string ("lw_" ^ x),
adamc@165 651 string ";"]) xncsArgs,
adamc@165 652 newline,
adamc@165 653 string "}",
adamc@165 654 space,
adamc@165 655 string "data;",
adamc@165 656 newline]),
adamc@165 657 string "};"]
adamc@188 658 end
adamc@29 659
adamc@196 660 | DDatatypeForward _ => box []
adamc@196 661
adamc@29 662 | DVal (x, n, t, e) =>
adamc@29 663 box [p_typ env t,
adamc@29 664 space,
adamc@29 665 string ("__lwn_" ^ x ^ "_" ^ Int.toString n),
adamc@29 666 space,
adamc@29 667 string "=",
adamc@29 668 space,
adamc@29 669 p_exp env e,
adamc@29 670 string ";"]
adamc@129 671 | DFun vi => p_fun env vi
adamc@129 672 | DFunRec vis =>
adamc@29 673 let
adamc@129 674 val env = E.declBinds env dAll
adamc@29 675 in
adamc@129 676 box [p_list_sep newline (fn (fx, n, args, ran, _) =>
adamc@129 677 box [string "static",
adamc@129 678 space,
adamc@129 679 p_typ env ran,
adamc@129 680 space,
adamc@129 681 string ("__lwn_" ^ fx ^ "_" ^ Int.toString n),
adamc@129 682 string "(lw_context,",
adamc@129 683 space,
adamc@129 684 p_list_sep (box [string ",", space])
adamc@129 685 (fn (_, dom) => p_typ env dom) args,
adamc@129 686 string ");"]) vis,
adamc@29 687 newline,
adamc@129 688 p_list_sep newline (p_fun env) vis,
adamc@129 689 newline]
adamc@29 690 end
adamc@273 691 | DTable (x, _) => box [string "/* SQL table ",
adamc@273 692 string x,
adamc@273 693 string " */",
adamc@273 694 newline]
adamc@275 695 | DDatabase s => box [string "static void lw_db_validate(lw_context);",
adamc@272 696 newline,
adamc@275 697 newline,
adamc@275 698 string "void lw_db_init(lw_context ctx) {",
adamc@273 699 newline,
adamc@272 700 string "PGconn *conn = PQconnectdb(\"",
adamc@272 701 string (String.toString s),
adamc@272 702 string "\");",
adamc@272 703 newline,
adamc@272 704 string "if (conn == NULL) lw_error(ctx, BOUNDED_RETRY, ",
adamc@272 705 string "\"libpq can't allocate a connection.\");",
adamc@272 706 newline,
adamc@272 707 string "if (PQstatus(conn) != CONNECTION_OK) {",
adamc@272 708 newline,
adamc@272 709 box [string "char msg[1024];",
adamc@272 710 newline,
adamc@272 711 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@272 712 newline,
adamc@272 713 string "msg[1023] = 0;",
adamc@272 714 newline,
adamc@272 715 string "PQfinish(conn);",
adamc@272 716 newline,
adamc@272 717 string "lw_error(ctx, BOUNDED_RETRY, ",
adamc@272 718 string "\"Connection to Postgres server failed: %s\", msg);"],
adamc@272 719 newline,
adamc@272 720 string "}",
adamc@272 721 newline,
adamc@272 722 string "lw_set_db(ctx, conn);",
adamc@272 723 newline,
adamc@275 724 string "lw_db_validate(ctx);",
adamc@275 725 newline,
adamc@272 726 string "}",
adamc@272 727 newline,
adamc@272 728 newline,
adamc@272 729 string "void lw_db_close(lw_context ctx) {",
adamc@272 730 newline,
adamc@272 731 string "PQfinish(lw_get_db(ctx));",
adamc@272 732 newline,
adamc@272 733 string "}",
adamc@272 734 newline]
adamc@29 735
adamc@144 736 datatype 'a search =
adamc@144 737 Found of 'a
adamc@144 738 | NotFound
adamc@144 739 | Error
adamc@120 740
adamc@275 741 fun p_sqltype' env (tAll as (t, loc)) =
adamc@275 742 case t of
adamc@275 743 TFfi ("Basis", "int") => "int8"
adamc@275 744 | TFfi ("Basis", "float") => "float8"
adamc@275 745 | TFfi ("Basis", "string") => "text"
adamc@275 746 | TFfi ("Basis", "bool") => "bool"
adamc@275 747 | _ => (ErrorMsg.errorAt loc "Don't know SQL equivalent of type";
adamc@275 748 Print.eprefaces' [("Type", p_typ env tAll)];
adamc@275 749 "ERROR")
adamc@275 750
adamc@275 751 fun p_sqltype env t = string (p_sqltype' env t)
adamc@101 752
adamc@101 753 fun p_file env (ds, ps) =
adamc@29 754 let
adamc@101 755 val (pds, env) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 756 (p_decl env d,
adamc@31 757 E.declBinds env d))
adamc@101 758 env ds
adamc@144 759
adamc@144 760 val fields = foldl (fn ((ek, _, _, ts), fields) =>
adamc@144 761 case ek of
adamc@144 762 Core.Link => fields
adamc@144 763 | Core.Action =>
adamc@144 764 case List.last ts of
adamc@144 765 (TRecord i, _) =>
adamc@144 766 let
adamc@144 767 val xts = E.lookupStruct env i
adamc@144 768 val xtsSet = SS.addList (SS.empty, map #1 xts)
adamc@144 769 in
adamc@144 770 foldl (fn ((x, _), fields) =>
adamc@144 771 let
adamc@144 772 val xtsSet' = Option.getOpt (SM.find (fields, x), SS.empty)
adamc@144 773 in
adamc@144 774 SM.insert (fields, x, SS.union (SS.delete (xtsSet, x),
adamc@144 775 xtsSet'))
adamc@144 776 end) fields xts
adamc@144 777 end
adamc@144 778 | _ => raise Fail "CjrPrint: Last argument of action isn't record")
adamc@144 779 SM.empty ps
adamc@144 780
adamc@144 781 val fnums = SM.foldli (fn (x, xs, fnums) =>
adamc@144 782 let
adamc@144 783 val unusable = SS.foldl (fn (x', unusable) =>
adamc@144 784 case SM.find (fnums, x') of
adamc@144 785 NONE => unusable
adamc@144 786 | SOME n => IS.add (unusable, n))
adamc@144 787 IS.empty xs
adamc@144 788
adamc@144 789 fun findAvailable n =
adamc@144 790 if IS.member (unusable, n) then
adamc@144 791 findAvailable (n + 1)
adamc@144 792 else
adamc@144 793 n
adamc@144 794 in
adamc@144 795 SM.insert (fnums, x, findAvailable 0)
adamc@144 796 end)
adamc@144 797 SM.empty fields
adamc@144 798
adamc@144 799 fun makeSwitch (fnums, i) =
adamc@144 800 case SM.foldl (fn (n, NotFound) => Found n
adamc@144 801 | (n, Error) => Error
adamc@144 802 | (n, Found n') => if n = n' then
adamc@144 803 Found n'
adamc@144 804 else
adamc@144 805 Error) NotFound fnums of
adamc@144 806 NotFound => box [string "return",
adamc@144 807 space,
adamc@144 808 string "-1;"]
adamc@144 809 | Found n => box [string "return",
adamc@144 810 space,
adamc@144 811 string (Int.toString n),
adamc@144 812 string ";"]
adamc@144 813 | Error =>
adamc@144 814 let
adamc@144 815 val cmap = SM.foldli (fn (x, n, cmap) =>
adamc@144 816 let
adamc@144 817 val ch = if i < size x then
adamc@144 818 String.sub (x, i)
adamc@144 819 else
adamc@144 820 chr 0
adamc@144 821
adamc@144 822 val fnums = case CM.find (cmap, ch) of
adamc@144 823 NONE => SM.empty
adamc@144 824 | SOME fnums => fnums
adamc@144 825 val fnums = SM.insert (fnums, x, n)
adamc@144 826 in
adamc@144 827 CM.insert (cmap, ch, fnums)
adamc@144 828 end)
adamc@144 829 CM.empty fnums
adamc@144 830
adamc@144 831 val cmap = CM.listItemsi cmap
adamc@144 832 in
adamc@144 833 case cmap of
adamc@144 834 [(_, fnums)] =>
adamc@144 835 box [string "if",
adamc@144 836 space,
adamc@144 837 string "(name[",
adamc@144 838 string (Int.toString i),
adamc@144 839 string "]",
adamc@144 840 space,
adamc@144 841 string "==",
adamc@144 842 space,
adamc@144 843 string "0)",
adamc@144 844 space,
adamc@144 845 string "return",
adamc@144 846 space,
adamc@144 847 string "-1;",
adamc@144 848 newline,
adamc@144 849 makeSwitch (fnums, i+1)]
adamc@144 850 | _ =>
adamc@144 851 box [string "switch",
adamc@144 852 space,
adamc@144 853 string "(name[",
adamc@144 854 string (Int.toString i),
adamc@144 855 string "])",
adamc@144 856 space,
adamc@144 857 string "{",
adamc@144 858 newline,
adamc@144 859 box (map (fn (ch, fnums) =>
adamc@144 860 box [string "case",
adamc@144 861 space,
adamc@144 862 if ch = chr 0 then
adamc@144 863 string "0:"
adamc@144 864 else
adamc@144 865 box [string "'",
adamc@144 866 string (Char.toString ch),
adamc@144 867 string "':"],
adamc@144 868 newline,
adamc@144 869 makeSwitch (fnums, i+1),
adamc@144 870 newline]) cmap),
adamc@144 871 string "default:",
adamc@144 872 newline,
adamc@144 873 string "return",
adamc@144 874 space,
adamc@144 875 string "-1;",
adamc@144 876 newline,
adamc@144 877 string "}"]
adamc@144 878 end
adamc@144 879
adamc@186 880 fun capitalize s =
adamc@186 881 if s = "" then
adamc@186 882 ""
adamc@186 883 else
adamc@186 884 str (Char.toUpper (String.sub (s, 0))) ^ String.extract (s, 1, NONE)
adamc@186 885
adamc@144 886 fun unurlify (t, loc) =
adamc@144 887 case t of
adamc@186 888 TFfi (m, t) => string ("lw_" ^ m ^ "_unurlify" ^ capitalize t ^ "(ctx, &request)")
adamc@144 889
adamc@144 890 | TRecord 0 => string "lw_unit_v"
adamc@144 891 | TRecord i =>
adamc@144 892 let
adamc@144 893 val xts = E.lookupStruct env i
adamc@144 894 in
adamc@144 895 box [string "({",
adamc@144 896 newline,
adamc@144 897 box (map (fn (x, t) =>
adamc@144 898 box [p_typ env t,
adamc@144 899 space,
adamc@144 900 string x,
adamc@144 901 space,
adamc@144 902 string "=",
adamc@144 903 space,
adamc@144 904 unurlify t,
adamc@144 905 string ";",
adamc@144 906 newline]) xts),
adamc@144 907 string "struct",
adamc@144 908 space,
adamc@144 909 string "__lws_",
adamc@144 910 string (Int.toString i),
adamc@144 911 space,
adamc@181 912 string "tmp",
adamc@144 913 space,
adamc@144 914 string "=",
adamc@144 915 space,
adamc@144 916 string "{",
adamc@144 917 space,
adamc@144 918 p_list_sep (box [string ",", space]) (fn (x, _) => string x) xts,
adamc@144 919 space,
adamc@144 920 string "};",
adamc@144 921 newline,
adamc@181 922 string "tmp;",
adamc@144 923 newline,
adamc@144 924 string "})"]
adamc@144 925 end
adamc@144 926
adamc@188 927 | TDatatype (Enum, i, _) =>
adamc@188 928 let
adamc@188 929 val (x, xncs) = E.lookupDatatype env i
adamc@188 930
adamc@188 931 fun doEm xncs =
adamc@188 932 case xncs of
adamc@188 933 [] => string ("(lw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), (enum __lwe_"
adamc@188 934 ^ x ^ "_" ^ Int.toString i ^ ")0)")
adamc@188 935 | (x', n, to) :: rest =>
adamc@188 936 box [string "((!strncmp(request, \"",
adamc@188 937 string x',
adamc@188 938 string "\", ",
adamc@188 939 string (Int.toString (size x')),
adamc@188 940 string ") && (request[",
adamc@188 941 string (Int.toString (size x')),
adamc@188 942 string "] == 0 || request[",
adamc@188 943 string (Int.toString (size x')),
adamc@188 944 string ("] == '/')) ? __lwc_" ^ x' ^ "_" ^ Int.toString n),
adamc@188 945 space,
adamc@188 946 string ":",
adamc@188 947 space,
adamc@188 948 doEm rest,
adamc@188 949 string ")"]
adamc@188 950 in
adamc@188 951 doEm xncs
adamc@188 952 end
adamc@188 953
adamc@198 954 | TDatatype (Option, i, xncs) =>
adamc@198 955 let
adamc@198 956 val (x, _) = E.lookupDatatype env i
adamc@198 957
adamc@198 958 val (no_arg, has_arg, t) =
adamc@198 959 case !xncs of
adamc@198 960 [(no_arg, _, NONE), (has_arg, _, SOME t)] =>
adamc@198 961 (no_arg, has_arg, t)
adamc@198 962 | [(has_arg, _, SOME t), (no_arg, _, NONE)] =>
adamc@198 963 (no_arg, has_arg, t)
adamc@198 964 | _ => raise Fail "CjrPrint: unfooify misclassified Option datatype"
adamc@198 965 in
adamc@198 966 box [string "(request[0] == '/' ? ++request : request,",
adamc@198 967 newline,
adamc@198 968 string "((!strncmp(request, \"",
adamc@198 969 string no_arg,
adamc@198 970 string "\", ",
adamc@198 971 string (Int.toString (size no_arg)),
adamc@198 972 string ") && (request[",
adamc@198 973 string (Int.toString (size no_arg)),
adamc@198 974 string "] == 0 || request[",
adamc@198 975 string (Int.toString (size no_arg)),
adamc@198 976 string "] == '/')) ? (request",
adamc@198 977 space,
adamc@198 978 string "+=",
adamc@198 979 space,
adamc@198 980 string (Int.toString (size no_arg)),
adamc@198 981 string ", NULL) : ((!strncmp(request, \"",
adamc@198 982 string has_arg,
adamc@198 983 string "\", ",
adamc@198 984 string (Int.toString (size has_arg)),
adamc@198 985 string ") && (request[",
adamc@198 986 string (Int.toString (size has_arg)),
adamc@198 987 string "] == 0 || request[",
adamc@198 988 string (Int.toString (size has_arg)),
adamc@198 989 string "] == '/')) ? (request",
adamc@198 990 space,
adamc@198 991 string "+=",
adamc@198 992 space,
adamc@198 993 string (Int.toString (size has_arg)),
adamc@200 994 string ", (request[0] == '/' ? ++request : NULL), ",
adamc@200 995 newline,
adamc@198 996
adamc@198 997 case #1 t of
adamc@198 998 TDatatype _ => unurlify t
adamc@199 999 | TFfi ("Basis", "string") => unurlify t
adamc@198 1000 | _ => box [string "({",
adamc@198 1001 newline,
adamc@198 1002 p_typ env t,
adamc@198 1003 space,
adamc@198 1004 string "*tmp",
adamc@198 1005 space,
adamc@198 1006 string "=",
adamc@198 1007 space,
adamc@198 1008 string "lw_malloc(ctx, sizeof(",
adamc@198 1009 p_typ env t,
adamc@198 1010 string "));",
adamc@198 1011 newline,
adamc@198 1012 string "*tmp",
adamc@198 1013 space,
adamc@198 1014 string "=",
adamc@198 1015 space,
adamc@198 1016 unurlify t,
adamc@198 1017 string ";",
adamc@198 1018 newline,
adamc@198 1019 string "tmp;",
adamc@198 1020 newline,
adamc@198 1021 string "})"],
adamc@198 1022 string ")",
adamc@198 1023 newline,
adamc@198 1024 string ":",
adamc@198 1025 space,
adamc@198 1026 string ("(lw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), NULL))))")]
adamc@198 1027 end
adamc@198 1028
adamc@188 1029 | TDatatype (Default, i, _) =>
adamc@166 1030 let
adamc@166 1031 val (x, xncs) = E.lookupDatatype env i
adamc@166 1032
adamc@166 1033 fun doEm xncs =
adamc@166 1034 case xncs of
adamc@167 1035 [] => string ("(lw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), NULL)")
adamc@167 1036 | (x', n, to) :: rest =>
adamc@167 1037 box [string "((!strncmp(request, \"",
adamc@167 1038 string x',
adamc@167 1039 string "\", ",
adamc@167 1040 string (Int.toString (size x')),
adamc@167 1041 string ") && (request[",
adamc@167 1042 string (Int.toString (size x')),
adamc@167 1043 string "] == 0 || request[",
adamc@167 1044 string (Int.toString (size x')),
adamc@167 1045 string "] == '/')) ? ({",
adamc@166 1046 newline,
adamc@167 1047 string "struct",
adamc@167 1048 space,
adamc@166 1049 string ("__lwd_" ^ x ^ "_" ^ Int.toString i),
adamc@166 1050 space,
adamc@181 1051 string "*tmp = lw_malloc(ctx, sizeof(struct __lwd_",
adamc@167 1052 string x,
adamc@167 1053 string "_",
adamc@167 1054 string (Int.toString i),
adamc@167 1055 string "));",
adamc@166 1056 newline,
adamc@181 1057 string "tmp->tag",
adamc@166 1058 space,
adamc@166 1059 string "=",
adamc@166 1060 space,
adamc@167 1061 string ("__lwc_" ^ x' ^ "_" ^ Int.toString n),
adamc@166 1062 string ";",
adamc@166 1063 newline,
adamc@166 1064 string "request",
adamc@166 1065 space,
adamc@166 1066 string "+=",
adamc@166 1067 space,
adamc@167 1068 string (Int.toString (size x')),
adamc@166 1069 string ";",
adamc@166 1070 newline,
adamc@200 1071 string "if (request[0] == '/') ++request;",
adamc@200 1072 newline,
adamc@166 1073 case to of
adamc@166 1074 NONE => box []
adamc@197 1075 | SOME t => box [string "tmp->data.lw_",
adamc@167 1076 string x',
adamc@166 1077 space,
adamc@166 1078 string "=",
adamc@166 1079 space,
adamc@166 1080 unurlify t,
adamc@166 1081 string ";",
adamc@166 1082 newline],
adamc@181 1083 string "tmp;",
adamc@166 1084 newline,
adamc@166 1085 string "})",
adamc@166 1086 space,
adamc@166 1087 string ":",
adamc@166 1088 space,
adamc@166 1089 doEm rest,
adamc@166 1090 string ")"]
adamc@166 1091 in
adamc@166 1092 doEm xncs
adamc@166 1093 end
adamc@166 1094
adamc@144 1095 | _ => (ErrorMsg.errorAt loc "Unable to choose a URL decoding function";
adamc@144 1096 space)
adamc@144 1097
adamc@144 1098
adamc@144 1099 fun p_page (ek, s, n, ts) =
adamc@144 1100 let
adamc@144 1101 val (ts, defInputs, inputsVar) =
adamc@144 1102 case ek of
adamc@144 1103 Core.Link => (ts, string "", string "")
adamc@144 1104 | Core.Action =>
adamc@144 1105 case List.last ts of
adamc@144 1106 (TRecord i, _) =>
adamc@144 1107 let
adamc@144 1108 val xts = E.lookupStruct env i
adamc@144 1109 in
adamc@144 1110 (List.drop (ts, 1),
adamc@144 1111 box [box (map (fn (x, t) => box [p_typ env t,
adamc@144 1112 space,
adamc@144 1113 string "lw_input_",
adamc@144 1114 string x,
adamc@144 1115 string ";",
adamc@144 1116 newline]) xts),
adamc@144 1117 newline,
adamc@144 1118 box (map (fn (x, t) =>
adamc@144 1119 let
adamc@144 1120 val n = case SM.find (fnums, x) of
adamc@144 1121 NONE => raise Fail "CjrPrint: Can't find in fnums"
adamc@144 1122 | SOME n => n
adamc@190 1123
adamc@190 1124 val f = case t of
adamc@190 1125 (TFfi ("Basis", "bool"), _) => "optional_"
adamc@190 1126 | _ => ""
adamc@144 1127 in
adamc@190 1128 box [string "request = lw_get_",
adamc@190 1129 string f,
adamc@190 1130 string "input(ctx, ",
adamc@144 1131 string (Int.toString n),
adamc@144 1132 string ");",
adamc@144 1133 newline,
adamc@144 1134 string "if (request == NULL) {",
adamc@144 1135 newline,
adamc@144 1136 box [string "printf(\"Missing input ",
adamc@144 1137 string x,
adamc@144 1138 string "\\n\");",
adamc@144 1139 newline,
adamc@144 1140 string "exit(1);"],
adamc@144 1141 newline,
adamc@144 1142 string "}",
adamc@144 1143 newline,
adamc@144 1144 string "lw_input_",
adamc@144 1145 string x,
adamc@144 1146 space,
adamc@144 1147 string "=",
adamc@144 1148 space,
adamc@144 1149 unurlify t,
adamc@144 1150 string ";",
adamc@144 1151 newline]
adamc@144 1152 end) xts),
adamc@144 1153 string "struct __lws_",
adamc@144 1154 string (Int.toString i),
adamc@144 1155 space,
adamc@144 1156 string "lw_inputs",
adamc@144 1157 space,
adamc@144 1158 string "= {",
adamc@144 1159 newline,
adamc@144 1160 box (map (fn (x, _) => box [string "lw_input_",
adamc@144 1161 string x,
adamc@144 1162 string ",",
adamc@144 1163 newline]) xts),
adamc@144 1164 string "};",
adamc@144 1165 newline],
adamc@144 1166 box [string ",",
adamc@144 1167 space,
adamc@144 1168 string "lw_inputs"])
adamc@144 1169 end
adamc@144 1170
adamc@144 1171 | _ => raise Fail "CjrPrint: Last argument to an action isn't a record"
adamc@144 1172 in
adamc@144 1173 box [string "if (!strncmp(request, \"",
adamc@144 1174 string (String.toString s),
adamc@144 1175 string "\", ",
adamc@144 1176 string (Int.toString (size s)),
adamc@198 1177 string ") && (request[",
adamc@198 1178 string (Int.toString (size s)),
adamc@198 1179 string "] == 0 || request[",
adamc@198 1180 string (Int.toString (size s)),
adamc@198 1181 string "] == '/')) {",
adamc@144 1182 newline,
adamc@144 1183 string "request += ",
adamc@144 1184 string (Int.toString (size s)),
adamc@144 1185 string ";",
adamc@144 1186 newline,
adamc@144 1187 string "if (*request == '/') ++request;",
adamc@144 1188 newline,
adamc@144 1189 box [string "{",
adamc@144 1190 newline,
adamc@144 1191 box (ListUtil.mapi (fn (i, t) => box [p_typ env t,
adamc@144 1192 space,
adamc@144 1193 string "arg",
adamc@144 1194 string (Int.toString i),
adamc@144 1195 space,
adamc@144 1196 string "=",
adamc@144 1197 space,
adamc@144 1198 unurlify t,
adamc@144 1199 string ";",
adamc@144 1200 newline]) ts),
adamc@144 1201 defInputs,
adamc@144 1202 p_enamed env n,
adamc@144 1203 string "(",
adamc@144 1204 p_list_sep (box [string ",", space])
adamc@144 1205 (fn x => x)
adamc@272 1206 (string "ctx"
adamc@272 1207 :: ListUtil.mapi (fn (i, _) => string ("arg" ^ Int.toString i)) ts
adamc@272 1208 @ [string "lw_unit_v"]),
adamc@144 1209 inputsVar,
adamc@144 1210 string ");",
adamc@144 1211 newline,
adamc@144 1212 string "return;",
adamc@144 1213 newline,
adamc@144 1214 string "}",
adamc@144 1215 newline,
adamc@144 1216 string "}"]
adamc@144 1217 ]
adamc@144 1218 end
adamc@144 1219
adamc@144 1220 val pds' = map p_page ps
adamc@275 1221
adamc@275 1222 val tables = List.mapPartial (fn (DTable (s, xts), _) => SOME (s, xts)
adamc@275 1223 | _ => NONE) ds
adamc@275 1224
adamc@275 1225 val validate =
adamc@275 1226 box [string "static void lw_db_validate(lw_context ctx) {",
adamc@275 1227 newline,
adamc@275 1228 string "PGconn *conn = lw_get_db(ctx);",
adamc@275 1229 newline,
adamc@275 1230 string "PGresult *res;",
adamc@275 1231 newline,
adamc@275 1232 newline,
adamc@275 1233 p_list_sep newline
adamc@275 1234 (fn (s, xts) =>
adamc@275 1235 let
adamc@275 1236 val q = "SELECT COUNT(*) FROM pg_class WHERE relname = '"
adamc@275 1237 ^ s ^ "'"
adamc@275 1238
adamc@275 1239 val q' = String.concat ["SELECT COUNT(*) FROM pg_attribute WHERE attrelid = (SELECT oid FROM pg_class WHERE relname = '",
adamc@275 1240 s,
adamc@275 1241 "') AND (",
adamc@275 1242 String.concatWith " OR "
adamc@275 1243 (map (fn (x, t) =>
adamc@275 1244 String.concat ["(attname = 'lw_",
adamc@275 1245 CharVector.map
adamc@275 1246 Char.toLower x,
adamc@275 1247 "' AND atttypid = (SELECT oid FROM pg_type",
adamc@275 1248 " WHERE typname = '",
adamc@275 1249 p_sqltype' env t,
adamc@275 1250 "'))"]) xts),
adamc@275 1251 ")"]
adamc@275 1252
adamc@275 1253 val q'' = String.concat ["SELECT COUNT(*) FROM pg_attribute WHERE attrelid = (SELECT oid FROM pg_class WHERE relname = '",
adamc@275 1254 s,
adamc@275 1255 "') AND attnum >= 0"]
adamc@275 1256 in
adamc@275 1257 box [string "res = PQexec(conn, \"",
adamc@275 1258 string q,
adamc@275 1259 string "\");",
adamc@275 1260 newline,
adamc@275 1261 newline,
adamc@275 1262 string "if (res == NULL) {",
adamc@275 1263 newline,
adamc@275 1264 box [string "PQfinish(conn);",
adamc@275 1265 newline,
adamc@275 1266 string "lw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1267 newline],
adamc@275 1268 string "}",
adamc@275 1269 newline,
adamc@275 1270 newline,
adamc@275 1271 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1272 newline,
adamc@275 1273 box [string "char msg[1024];",
adamc@275 1274 newline,
adamc@275 1275 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1276 newline,
adamc@275 1277 string "msg[1023] = 0;",
adamc@275 1278 newline,
adamc@275 1279 string "PQclear(res);",
adamc@275 1280 newline,
adamc@275 1281 string "PQfinish(conn);",
adamc@275 1282 newline,
adamc@275 1283 string "lw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1284 string q,
adamc@275 1285 string "\\n%s\", msg);",
adamc@275 1286 newline],
adamc@275 1287 string "}",
adamc@275 1288 newline,
adamc@275 1289 newline,
adamc@275 1290 string "if (strcmp(PQgetvalue(res, 0, 0), \"1\")) {",
adamc@275 1291 newline,
adamc@275 1292 box [string "PQclear(res);",
adamc@275 1293 newline,
adamc@275 1294 string "PQfinish(conn);",
adamc@275 1295 newline,
adamc@275 1296 string "lw_error(ctx, FATAL, \"Table '",
adamc@275 1297 string s,
adamc@275 1298 string "' does not exist.\");",
adamc@275 1299 newline],
adamc@275 1300 string "}",
adamc@275 1301 newline,
adamc@275 1302 newline,
adamc@275 1303 string "PQclear(res);",
adamc@275 1304 newline,
adamc@275 1305
adamc@275 1306 string "res = PQexec(conn, \"",
adamc@275 1307 string q',
adamc@275 1308 string "\");",
adamc@275 1309 newline,
adamc@275 1310 newline,
adamc@275 1311 string "if (res == NULL) {",
adamc@275 1312 newline,
adamc@275 1313 box [string "PQfinish(conn);",
adamc@275 1314 newline,
adamc@275 1315 string "lw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1316 newline],
adamc@275 1317 string "}",
adamc@275 1318 newline,
adamc@275 1319 newline,
adamc@275 1320 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1321 newline,
adamc@275 1322 box [string "char msg[1024];",
adamc@275 1323 newline,
adamc@275 1324 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1325 newline,
adamc@275 1326 string "msg[1023] = 0;",
adamc@275 1327 newline,
adamc@275 1328 string "PQclear(res);",
adamc@275 1329 newline,
adamc@275 1330 string "PQfinish(conn);",
adamc@275 1331 newline,
adamc@275 1332 string "lw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1333 string q',
adamc@275 1334 string "\\n%s\", msg);",
adamc@275 1335 newline],
adamc@275 1336 string "}",
adamc@275 1337 newline,
adamc@275 1338 newline,
adamc@275 1339 string "if (strcmp(PQgetvalue(res, 0, 0), \"",
adamc@275 1340 string (Int.toString (length xts)),
adamc@275 1341 string "\")) {",
adamc@275 1342 newline,
adamc@275 1343 box [string "PQclear(res);",
adamc@275 1344 newline,
adamc@275 1345 string "PQfinish(conn);",
adamc@275 1346 newline,
adamc@275 1347 string "lw_error(ctx, FATAL, \"Table '",
adamc@275 1348 string s,
adamc@275 1349 string "' has the wrong column types.\");",
adamc@275 1350 newline],
adamc@275 1351 string "}",
adamc@275 1352 newline,
adamc@275 1353 newline,
adamc@275 1354 string "PQclear(res);",
adamc@275 1355 newline,
adamc@275 1356 newline,
adamc@275 1357
adamc@275 1358 string "res = PQexec(conn, \"",
adamc@275 1359 string q'',
adamc@275 1360 string "\");",
adamc@275 1361 newline,
adamc@275 1362 newline,
adamc@275 1363 string "if (res == NULL) {",
adamc@275 1364 newline,
adamc@275 1365 box [string "PQfinish(conn);",
adamc@275 1366 newline,
adamc@275 1367 string "lw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1368 newline],
adamc@275 1369 string "}",
adamc@275 1370 newline,
adamc@275 1371 newline,
adamc@275 1372 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1373 newline,
adamc@275 1374 box [string "char msg[1024];",
adamc@275 1375 newline,
adamc@275 1376 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1377 newline,
adamc@275 1378 string "msg[1023] = 0;",
adamc@275 1379 newline,
adamc@275 1380 string "PQclear(res);",
adamc@275 1381 newline,
adamc@275 1382 string "PQfinish(conn);",
adamc@275 1383 newline,
adamc@275 1384 string "lw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1385 string q'',
adamc@275 1386 string "\\n%s\", msg);",
adamc@275 1387 newline],
adamc@275 1388 string "}",
adamc@275 1389 newline,
adamc@275 1390 newline,
adamc@275 1391 string "if (strcmp(PQgetvalue(res, 0, 0), \"",
adamc@275 1392 string (Int.toString (length xts)),
adamc@275 1393 string "\")) {",
adamc@275 1394 newline,
adamc@275 1395 box [string "PQclear(res);",
adamc@275 1396 newline,
adamc@275 1397 string "PQfinish(conn);",
adamc@275 1398 newline,
adamc@275 1399 string "lw_error(ctx, FATAL, \"Table '",
adamc@275 1400 string s,
adamc@275 1401 string "' has extra columns.\");",
adamc@275 1402 newline],
adamc@275 1403 string "}",
adamc@275 1404 newline,
adamc@275 1405 newline,
adamc@275 1406 string "PQclear(res);",
adamc@275 1407 newline]
adamc@275 1408 end) tables,
adamc@275 1409 string "}"]
adamc@29 1410 in
adamc@144 1411 box [string "#include <stdio.h>",
adamc@144 1412 newline,
adamc@144 1413 string "#include <stdlib.h>",
adamc@144 1414 newline,
adamc@272 1415 string "#include <string.h>",
adamc@272 1416 newline,
adamc@272 1417 string "#include <postgresql/libpq-fe.h>",
adamc@272 1418 newline,
adamc@144 1419 newline,
adamc@244 1420 string "#include \"urweb.h\"",
adamc@101 1421 newline,
adamc@101 1422 newline,
adamc@101 1423 p_list_sep newline (fn x => x) pds,
adamc@101 1424 newline,
adamc@144 1425 string "int lw_inputs_len = ",
adamc@144 1426 string (Int.toString (SM.foldl Int.max 0 fnums + 1)),
adamc@144 1427 string ";",
adamc@144 1428 newline,
adamc@144 1429 newline,
adamc@144 1430 string "int lw_input_num(char *name) {",
adamc@144 1431 newline,
adamc@144 1432 makeSwitch (fnums, 0),
adamc@144 1433 string "}",
adamc@144 1434 newline,
adamc@144 1435 newline,
adamc@117 1436 string "void lw_handle(lw_context ctx, char *request) {",
adamc@101 1437 newline,
adamc@101 1438 p_list_sep newline (fn x => x) pds',
adamc@101 1439 newline,
adamc@101 1440 string "}",
adamc@275 1441 newline,
adamc@275 1442 newline,
adamc@275 1443 validate,
adamc@101 1444 newline]
adamc@29 1445 end
adamc@29 1446
adamc@274 1447 fun p_sql env (ds, _) =
adamc@274 1448 let
adamc@274 1449 val (pps, _) = ListUtil.foldlMap
adamc@274 1450 (fn (dAll as (d, _), env) =>
adamc@274 1451 let
adamc@274 1452 val pp = case d of
adamc@274 1453 DTable (s, xts) =>
adamc@274 1454 box [string "CREATE TABLE ",
adamc@274 1455 string s,
adamc@274 1456 string "(",
adamc@274 1457 p_list (fn (x, t) =>
adamc@274 1458 box [string "lw_",
adamc@275 1459 string (CharVector.map Char.toLower x),
adamc@274 1460 space,
adamc@274 1461 p_sqltype env t,
adamc@274 1462 space,
adamc@274 1463 string "NOT",
adamc@274 1464 space,
adamc@274 1465 string "NULL"]) xts,
adamc@274 1466 string ");",
adamc@274 1467 newline,
adamc@274 1468 newline]
adamc@274 1469 | _ => box []
adamc@274 1470 in
adamc@274 1471 (pp, E.declBinds env dAll)
adamc@274 1472 end)
adamc@274 1473 env ds
adamc@274 1474 in
adamc@274 1475 box pps
adamc@274 1476 end
adamc@274 1477
adamc@29 1478 end