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annotate src/cjr_print.sml @ 290:df00701f2323

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'read' type class
author Adam Chlipala <adamc@hcoop.net>
date Sun, 07 Sep 2008 11:53:30 -0400
parents 4260ad920c36
children 6e665c7c96f6
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@288 93 | TOption t =>
adamc@288 94 (case #1 t of
adamc@288 95 TDatatype _ => p_typ' par env t
adamc@288 96 | TFfi ("Basis", "string") => p_typ' par env t
adamc@288 97 | _ => box [p_typ' par env t,
adamc@288 98 string "*"])
adamc@29 99
adamc@29 100 and p_typ env = p_typ' false env
adamc@29 101
adamc@29 102 fun p_rel env n = string ("__lwr_" ^ #1 (E.lookupERel env n) ^ "_" ^ Int.toString (E.countERels env - n - 1))
adamc@29 103 handle CjrEnv.UnboundRel _ => string ("__lwr_UNBOUND_" ^ Int.toString (E.countERels env - n - 1))
adamc@29 104
adamc@109 105 fun p_enamed env n =
adamc@109 106 string ("__lwn_" ^ #1 (E.lookupENamed env n) ^ "_" ^ Int.toString n)
adamc@109 107 handle CjrEnv.UnboundNamed _ => string ("__lwn_UNBOUND_" ^ Int.toString n)
adamc@109 108
adamc@182 109 fun p_con_named env n =
adamc@182 110 string ("__lwc_" ^ #1 (E.lookupConstructor env n) ^ "_" ^ Int.toString n)
adamc@182 111 handle CjrEnv.UnboundNamed _ => string ("__lwc_UNBOUND_" ^ Int.toString n)
adamc@182 112
adamc@182 113 fun p_pat_preamble env (p, _) =
adamc@182 114 case p of
adamc@182 115 PWild => (box [],
adamc@182 116 env)
adamc@182 117 | PVar (x, t) => (box [p_typ env t,
adamc@182 118 space,
adamc@182 119 string "__lwr_",
adamc@182 120 string x,
adamc@182 121 string "_",
adamc@182 122 string (Int.toString (E.countERels env)),
adamc@182 123 string ";",
adamc@182 124 newline],
adamc@196 125 E.pushERel env x t)
adamc@182 126 | PPrim _ => (box [], env)
adamc@188 127 | PCon (_, _, NONE) => (box [], env)
adamc@188 128 | PCon (_, _, SOME p) => p_pat_preamble env p
adamc@182 129 | PRecord xps =>
adamc@182 130 foldl (fn ((_, p, _), (pp, env)) =>
adamc@182 131 let
adamc@182 132 val (pp', env) = p_pat_preamble env p
adamc@182 133 in
adamc@182 134 (box [pp', pp], env)
adamc@182 135 end) (box [], env) xps
adamc@288 136 | PNone _ => (box [], env)
adamc@288 137 | PSome (_, p) => p_pat_preamble env p
adamc@182 138
adamc@182 139 fun p_patCon env pc =
adamc@182 140 case pc of
adamc@182 141 PConVar n => p_con_named env n
adamc@186 142 | PConFfi {mod = m, con, ...} => string ("lw_" ^ m ^ "_" ^ con)
adamc@182 143
adamc@182 144 fun p_pat (env, exit, depth) (p, _) =
adamc@182 145 case p of
adamc@182 146 PWild =>
adamc@182 147 (box [], env)
adamc@182 148 | PVar (x, t) =>
adamc@182 149 (box [string "__lwr_",
adamc@182 150 string x,
adamc@182 151 string "_",
adamc@182 152 string (Int.toString (E.countERels env)),
adamc@182 153 space,
adamc@182 154 string "=",
adamc@182 155 space,
adamc@182 156 string "disc",
adamc@182 157 string (Int.toString depth),
adamc@182 158 string ";"],
adamc@182 159 E.pushERel env x t)
adamc@182 160 | PPrim (Prim.Int n) =>
adamc@182 161 (box [string "if",
adamc@182 162 space,
adamc@182 163 string "(disc",
adamc@182 164 string (Int.toString depth),
adamc@182 165 space,
adamc@182 166 string "!=",
adamc@182 167 space,
adamc@276 168 Prim.p_t_GCC (Prim.Int n),
adamc@182 169 string ")",
adamc@182 170 space,
adamc@182 171 exit],
adamc@182 172 env)
adamc@182 173 | PPrim (Prim.String s) =>
adamc@182 174 (box [string "if",
adamc@182 175 space,
adamc@182 176 string "(strcmp(disc",
adamc@182 177 string (Int.toString depth),
adamc@182 178 string ",",
adamc@182 179 space,
adamc@276 180 Prim.p_t_GCC (Prim.String s),
adamc@182 181 string "))",
adamc@182 182 space,
adamc@182 183 exit],
adamc@182 184 env)
adamc@182 185 | PPrim _ => raise Fail "CjrPrint: Disallowed PPrim primitive"
adamc@182 186
adamc@188 187 | PCon (dk, pc, po) =>
adamc@182 188 let
adamc@182 189 val (p, env) =
adamc@182 190 case po of
adamc@182 191 NONE => (box [], env)
adamc@182 192 | SOME p =>
adamc@182 193 let
adamc@182 194 val (p, env) = p_pat (env, exit, depth + 1) p
adamc@182 195
adamc@182 196 val (x, to) = case pc of
adamc@182 197 PConVar n =>
adamc@182 198 let
adamc@182 199 val (x, to, _) = E.lookupConstructor env n
adamc@182 200 in
adamc@196 201 ("lw_" ^ x, to)
adamc@182 202 end
adamc@188 203 | PConFfi {mod = m, con, arg, ...} =>
adamc@188 204 ("lw_" ^ m ^ "_" ^ con, arg)
adamc@182 205
adamc@182 206 val t = case to of
adamc@182 207 NONE => raise Fail "CjrPrint: Constructor mismatch"
adamc@182 208 | SOME t => t
adamc@182 209 in
adamc@182 210 (box [string "{",
adamc@182 211 newline,
adamc@182 212 p_typ env t,
adamc@182 213 space,
adamc@182 214 string "disc",
adamc@182 215 string (Int.toString (depth + 1)),
adamc@182 216 space,
adamc@182 217 string "=",
adamc@182 218 space,
adamc@198 219 case dk of
adamc@198 220 Enum => raise Fail "CjrPrint: Looking at argument of no-argument constructor"
adamc@198 221 | Default => box [string "disc",
adamc@198 222 string (Int.toString depth),
adamc@198 223 string "->data.",
adamc@198 224 string x]
adamc@198 225 | Option =>
adamc@198 226 case #1 t of
adamc@198 227 TDatatype _ => box [string "disc",
adamc@198 228 string (Int.toString depth)]
adamc@199 229 | TFfi ("Basis", "string") => box [string "disc",
adamc@199 230 string (Int.toString depth)]
adamc@198 231 | _ => box [string "*disc",
adamc@198 232 string (Int.toString depth)],
adamc@182 233 string ";",
adamc@182 234 newline,
adamc@182 235 p,
adamc@182 236 newline,
adamc@182 237 string "}"],
adamc@182 238 env)
adamc@182 239 end
adamc@182 240 in
adamc@182 241 (box [string "if",
adamc@182 242 space,
adamc@182 243 string "(disc",
adamc@182 244 string (Int.toString depth),
adamc@198 245 case (dk, po) of
adamc@198 246 (Enum, _) => box [space,
adamc@198 247 string "!=",
adamc@198 248 space,
adamc@198 249 p_patCon env pc]
adamc@198 250 | (Default, _) => box [string "->tag",
adamc@198 251 space,
adamc@198 252 string "!=",
adamc@198 253 space,
adamc@198 254 p_patCon env pc]
adamc@198 255 | (Option, NONE) => box [space,
adamc@198 256 string "!=",
adamc@198 257 space,
adamc@198 258 string "NULL"]
adamc@198 259 | (Option, SOME _) => box [space,
adamc@198 260 string "==",
adamc@198 261 space,
adamc@198 262 string "NULL"],
adamc@182 263 string ")",
adamc@182 264 space,
adamc@182 265 exit,
adamc@182 266 newline,
adamc@182 267 p],
adamc@182 268 env)
adamc@182 269 end
adamc@182 270
adamc@182 271 | PRecord xps =>
adamc@182 272 let
adamc@182 273 val (xps, env) =
adamc@182 274 ListUtil.foldlMap (fn ((x, p, t), env) =>
adamc@182 275 let
adamc@182 276 val (p, env) = p_pat (env, exit, depth + 1) p
adamc@182 277
adamc@182 278 val p = box [string "{",
adamc@182 279 newline,
adamc@182 280 p_typ env t,
adamc@182 281 space,
adamc@182 282 string "disc",
adamc@182 283 string (Int.toString (depth + 1)),
adamc@182 284 space,
adamc@182 285 string "=",
adamc@182 286 space,
adamc@182 287 string "disc",
adamc@182 288 string (Int.toString depth),
adamc@196 289 string ".__lwf_",
adamc@182 290 string x,
adamc@182 291 string ";",
adamc@182 292 newline,
adamc@182 293 p,
adamc@182 294 newline,
adamc@182 295 string "}"]
adamc@182 296 in
adamc@182 297 (p, env)
adamc@182 298 end) env xps
adamc@182 299 in
adamc@182 300 (p_list_sep newline (fn x => x) xps,
adamc@182 301 env)
adamc@182 302 end
adamc@182 303
adamc@288 304 | PNone t =>
adamc@288 305 (box [string "if",
adamc@288 306 space,
adamc@288 307 string "(disc",
adamc@288 308 string (Int.toString depth),
adamc@288 309 space,
adamc@288 310 string "!=",
adamc@288 311 space,
adamc@288 312 string "NULL)",
adamc@288 313 space,
adamc@288 314 exit,
adamc@288 315 newline],
adamc@288 316 env)
adamc@288 317
adamc@288 318 | PSome (t, p) =>
adamc@288 319 let
adamc@288 320 val (p, env) =
adamc@288 321 let
adamc@288 322 val (p, env) = p_pat (env, exit, depth + 1) p
adamc@288 323 in
adamc@288 324 (box [string "{",
adamc@288 325 newline,
adamc@288 326 p_typ env t,
adamc@288 327 space,
adamc@288 328 string "disc",
adamc@288 329 string (Int.toString (depth + 1)),
adamc@288 330 space,
adamc@288 331 string "=",
adamc@288 332 space,
adamc@288 333 case #1 t of
adamc@288 334 TDatatype _ => box [string "disc",
adamc@288 335 string (Int.toString depth)]
adamc@288 336 | TFfi ("Basis", "string") => box [string "disc",
adamc@288 337 string (Int.toString depth)]
adamc@288 338 | _ => box [string "*disc",
adamc@288 339 string (Int.toString depth)],
adamc@288 340 string ";",
adamc@288 341 newline,
adamc@288 342 p,
adamc@288 343 newline,
adamc@288 344 string "}"],
adamc@288 345 env)
adamc@288 346 end
adamc@288 347 in
adamc@288 348 (box [string "if",
adamc@288 349 space,
adamc@288 350 string "(disc",
adamc@288 351 string (Int.toString depth),
adamc@288 352 space,
adamc@288 353 string "==",
adamc@288 354 space,
adamc@288 355 string "NULL)",
adamc@288 356 space,
adamc@288 357 exit,
adamc@288 358 newline,
adamc@288 359 p],
adamc@288 360 env)
adamc@288 361 end
adamc@288 362
adamc@182 363 local
adamc@182 364 val count = ref 0
adamc@182 365 in
adamc@182 366 fun newGoto () =
adamc@182 367 let
adamc@182 368 val r = !count
adamc@182 369 in
adamc@182 370 count := r + 1;
adamc@182 371 string ("L" ^ Int.toString r)
adamc@182 372 end
adamc@182 373 end
adamc@182 374
adamc@185 375 fun patConInfo env pc =
adamc@185 376 case pc of
adamc@185 377 PConVar n =>
adamc@185 378 let
adamc@185 379 val (x, _, dn) = E.lookupConstructor env n
adamc@185 380 val (dx, _) = E.lookupDatatype env dn
adamc@185 381 in
adamc@185 382 ("__lwd_" ^ dx ^ "_" ^ Int.toString dn,
adamc@196 383 "__lwc_" ^ x ^ "_" ^ Int.toString n,
adamc@196 384 "lw_" ^ x)
adamc@185 385 end
adamc@186 386 | PConFfi {mod = m, datatyp, con, ...} =>
adamc@185 387 ("lw_" ^ m ^ "_" ^ datatyp,
adamc@196 388 "lw_" ^ m ^ "_" ^ con,
adamc@196 389 "lw_" ^ con)
adamc@185 390
adamc@278 391 fun p_unsql env (tAll as (t, loc)) e =
adamc@278 392 case t of
adamc@278 393 TFfi ("Basis", "int") => box [string "*(lw_Basis_int *)", e]
adamc@278 394 | TFfi ("Basis", "float") => box [string "*(lw_Basis_float *)", e]
adamc@278 395 | TFfi ("Basis", "string") => box [string "lw_Basis_strdup(ctx, ", e, string ")"]
adamc@278 396 | TFfi ("Basis", "bool") => box [string "(*(int *)",
adamc@278 397 e,
adamc@278 398 string " ? lw_Basis_True : lw_Basis_False)"]
adamc@278 399 | _ => (ErrorMsg.errorAt loc "Don't know how to unmarshal type from SQL";
adamc@278 400 Print.eprefaces' [("Type", p_typ env tAll)];
adamc@278 401 string "ERROR")
adamc@278 402
adamc@282 403 datatype sql_type =
adamc@282 404 Int
adamc@282 405 | Float
adamc@282 406 | String
adamc@282 407 | Bool
adamc@282 408
adamc@282 409 fun p_sql_type t =
adamc@282 410 string (case t of
adamc@282 411 Int => "lw_Basis_int"
adamc@282 412 | Float => "lw_Basis_float"
adamc@282 413 | String => "lw_Basis_string"
adamc@282 414 | Bool => "lw_Basis_bool")
adamc@282 415
adamc@282 416 fun getPargs (e, _) =
adamc@282 417 case e of
adamc@282 418 EPrim (Prim.String _) => []
adamc@282 419 | EFfiApp ("Basis", "strcat", [e1, e2]) => getPargs e1 @ getPargs e2
adamc@282 420
adamc@282 421 | EFfiApp ("Basis", "sqlifyInt", [e]) => [(e, Int)]
adamc@282 422 | EFfiApp ("Basis", "sqlifyFloat", [e]) => [(e, Float)]
adamc@282 423 | EFfiApp ("Basis", "sqlifyString", [e]) => [(e, String)]
adamc@282 424 | EFfiApp ("Basis", "sqlifyBool", [e]) => [(e, Bool)]
adamc@282 425
adamc@282 426 | _ => raise Fail "CjrPrint: getPargs"
adamc@282 427
adamc@282 428 fun p_ensql t e =
adamc@282 429 case t of
adamc@282 430 Int => box [string "(char *)&", e]
adamc@282 431 | Float => box [string "(char *)&", e]
adamc@282 432 | String => e
adamc@282 433 | Bool => box [string "lw_Basis_ensqlBool(", e, string ")"]
adamc@282 434
adamc@282 435 fun p_ensql_len t e =
adamc@282 436 case t of
adamc@282 437 Int => string "sizeof(lw_Basis_int)"
adamc@282 438 | Float => string "sizeof(lw_Basis_float)"
adamc@282 439 | String => box [string "strlen(", e, string ")"]
adamc@282 440 | Bool => string "sizeof(lw_Basis_bool)"
adamc@282 441
adamc@182 442 fun p_exp' par env (e, loc) =
adamc@29 443 case e of
adamc@276 444 EPrim p => Prim.p_t_GCC p
adamc@29 445 | ERel n => p_rel env n
adamc@109 446 | ENamed n => p_enamed env n
adamc@188 447 | ECon (Enum, pc, _) => p_patCon env pc
adamc@198 448 | ECon (Option, pc, NONE) => string "NULL"
adamc@198 449 | ECon (Option, pc, SOME e) =>
adamc@198 450 let
adamc@198 451 val to = case pc of
adamc@198 452 PConVar n => #2 (E.lookupConstructor env n)
adamc@198 453 | PConFfi {arg, ...} => arg
adamc@198 454
adamc@198 455 val t = case to of
adamc@198 456 NONE => raise Fail "CjrPrint: ECon argument status mismatch"
adamc@198 457 | SOME t => t
adamc@198 458 in
adamc@198 459 case #1 t of
adamc@198 460 TDatatype _ => p_exp' par env e
adamc@199 461 | TFfi ("Basis", "string") => p_exp' par env e
adamc@198 462 | _ => box [string "({",
adamc@198 463 newline,
adamc@198 464 p_typ env t,
adamc@198 465 space,
adamc@198 466 string "*tmp",
adamc@198 467 space,
adamc@198 468 string "=",
adamc@198 469 space,
adamc@198 470 string "lw_malloc(ctx, sizeof(",
adamc@198 471 p_typ env t,
adamc@198 472 string "));",
adamc@198 473 newline,
adamc@198 474 string "*tmp",
adamc@198 475 space,
adamc@198 476 string "=",
adamc@198 477 p_exp' par env e,
adamc@198 478 string ";",
adamc@198 479 newline,
adamc@198 480 string "tmp;",
adamc@198 481 newline,
adamc@198 482 string "})"]
adamc@198 483 end
adamc@188 484 | ECon (Default, pc, eo) =>
adamc@181 485 let
adamc@196 486 val (xd, xc, xn) = patConInfo env pc
adamc@181 487 in
adamc@182 488 box [string "({",
adamc@181 489 newline,
adamc@181 490 string "struct",
adamc@181 491 space,
adamc@185 492 string xd,
adamc@181 493 space,
adamc@181 494 string "*tmp",
adamc@181 495 space,
adamc@181 496 string "=",
adamc@181 497 space,
adamc@185 498 string "lw_malloc(ctx, sizeof(struct ",
adamc@185 499 string xd,
adamc@181 500 string "));",
adamc@181 501 newline,
adamc@181 502 string "tmp->tag",
adamc@181 503 space,
adamc@181 504 string "=",
adamc@181 505 space,
adamc@185 506 string xc,
adamc@181 507 string ";",
adamc@181 508 newline,
adamc@181 509 case eo of
adamc@181 510 NONE => box []
adamc@185 511 | SOME e => box [string "tmp->data.",
adamc@196 512 string xn,
adamc@181 513 space,
adamc@181 514 string "=",
adamc@181 515 space,
adamc@181 516 p_exp env e,
adamc@181 517 string ";",
adamc@181 518 newline],
adamc@181 519 string "tmp;",
adamc@181 520 newline,
adamc@181 521 string "})"]
adamc@181 522 end
adamc@290 523 | ESome (t, e) =>
adamc@290 524 (case #1 t of
adamc@290 525 TDatatype _ => p_exp' par env e
adamc@290 526 | TFfi ("Basis", "string") => p_exp' par env e
adamc@290 527 | _ => box [string "({",
adamc@290 528 newline,
adamc@290 529 p_typ env t,
adamc@290 530 space,
adamc@290 531 string "*tmp",
adamc@290 532 space,
adamc@290 533 string "=",
adamc@290 534 space,
adamc@290 535 string "lw_malloc(ctx, sizeof(",
adamc@290 536 p_typ env t,
adamc@290 537 string "));",
adamc@290 538 newline,
adamc@290 539 string "*tmp",
adamc@290 540 space,
adamc@290 541 string "=",
adamc@290 542 p_exp' par env e,
adamc@290 543 string ";",
adamc@290 544 newline,
adamc@290 545 string "tmp;",
adamc@290 546 newline,
adamc@290 547 string "})"])
adamc@109 548
adamc@53 549 | EFfi (m, x) => box [string "lw_", string m, string "_", string x]
adamc@283 550 | EError (e, t) =>
adamc@283 551 box [string "({",
adamc@283 552 newline,
adamc@283 553 p_typ env t,
adamc@283 554 space,
adamc@283 555 string "tmp;",
adamc@283 556 newline,
adamc@283 557 string "lw_Basis_error(ctx, ",
adamc@283 558 p_exp env e,
adamc@283 559 string ");",
adamc@283 560 newline,
adamc@283 561 string "tmp;",
adamc@283 562 newline,
adamc@283 563 string "})"]
adamc@53 564 | EFfiApp (m, x, es) => box [string "lw_",
adamc@53 565 string m,
adamc@53 566 string "_",
adamc@53 567 string x,
adamc@117 568 string "(ctx, ",
adamc@53 569 p_list (p_exp env) es,
adamc@53 570 string ")"]
adamc@129 571 | EApp (e1, e2) =>
adamc@129 572 let
adamc@129 573 fun unravel (f, acc) =
adamc@129 574 case #1 f of
adamc@129 575 EApp (f', arg) => unravel (f', arg :: acc)
adamc@129 576 | _ => (f, acc)
adamc@129 577
adamc@129 578 val (f, args) = unravel (e1, [e2])
adamc@129 579 in
adamc@129 580 parenIf par (box [p_exp' true env e1,
adamc@129 581 string "(ctx,",
adamc@129 582 space,
adamc@129 583 p_list_sep (box [string ",", space]) (p_exp env) args,
adamc@129 584 string ")"])
adamc@129 585 end
adamc@29 586
adamc@29 587 | ERecord (i, xes) => box [string "({",
adamc@29 588 space,
adamc@29 589 string "struct",
adamc@29 590 space,
adamc@29 591 string ("__lws_" ^ Int.toString i),
adamc@29 592 space,
adamc@181 593 string "tmp",
adamc@29 594 space,
adamc@29 595 string "=",
adamc@29 596 space,
adamc@29 597 string "{",
adamc@29 598 p_list (fn (_, e) =>
adamc@29 599 p_exp env e) xes,
adamc@29 600 string "};",
adamc@29 601 space,
adamc@181 602 string "tmp;",
adamc@29 603 space,
adamc@29 604 string "})" ]
adamc@29 605 | EField (e, x) =>
adamc@29 606 box [p_exp' true env e,
adamc@182 607 string ".__lwf_",
adamc@29 608 string x]
adamc@29 609
adamc@182 610 | ECase (e, pes, {disc, result}) =>
adamc@182 611 let
adamc@182 612 val final = newGoto ()
adamc@182 613
adamc@182 614 val body = foldl (fn ((p, e), body) =>
adamc@182 615 let
adamc@182 616 val exit = newGoto ()
adamc@182 617 val (pr, _) = p_pat_preamble env p
adamc@182 618 val (p, env) = p_pat (env,
adamc@182 619 box [string "goto",
adamc@182 620 space,
adamc@182 621 exit,
adamc@182 622 string ";"],
adamc@182 623 0) p
adamc@182 624 in
adamc@182 625 box [body,
adamc@182 626 box [string "{",
adamc@182 627 newline,
adamc@182 628 pr,
adamc@182 629 newline,
adamc@182 630 p,
adamc@182 631 newline,
adamc@182 632 string "result",
adamc@182 633 space,
adamc@182 634 string "=",
adamc@182 635 space,
adamc@182 636 p_exp env e,
adamc@182 637 string ";",
adamc@182 638 newline,
adamc@182 639 string "goto",
adamc@182 640 space,
adamc@182 641 final,
adamc@182 642 string ";",
adamc@182 643 newline,
adamc@182 644 string "}"],
adamc@182 645 newline,
adamc@182 646 exit,
adamc@182 647 string ":",
adamc@182 648 newline]
adamc@182 649 end) (box []) pes
adamc@182 650 in
adamc@182 651 box [string "({",
adamc@182 652 newline,
adamc@182 653 p_typ env disc,
adamc@182 654 space,
adamc@182 655 string "disc0",
adamc@182 656 space,
adamc@182 657 string "=",
adamc@182 658 space,
adamc@182 659 p_exp env e,
adamc@182 660 string ";",
adamc@182 661 newline,
adamc@182 662 p_typ env result,
adamc@182 663 space,
adamc@182 664 string "result;",
adamc@182 665 newline,
adamc@182 666 body,
adamc@182 667 string "lw_error(ctx, FATAL, \"",
adamc@182 668 string (ErrorMsg.spanToString loc),
adamc@182 669 string ": pattern match failure\");",
adamc@182 670 newline,
adamc@182 671 final,
adamc@182 672 string ":",
adamc@182 673 space,
adamc@182 674 string "result;",
adamc@182 675 newline,
adamc@182 676 string "})"]
adamc@182 677 end
adamc@181 678
adamc@117 679 | EWrite e => box [string "(lw_write(ctx, ",
adamc@102 680 p_exp env e,
adamc@102 681 string "), lw_unit_v)"]
adamc@102 682
adamc@106 683 | ESeq (e1, e2) => box [string "(",
adamc@106 684 p_exp env e1,
adamc@106 685 string ",",
adamc@106 686 space,
adamc@106 687 p_exp env e2,
adamc@106 688 string ")"]
adamc@269 689 | ELet (x, t, e1, e2) => box [string "({",
adamc@269 690 newline,
adamc@269 691 p_typ env t,
adamc@269 692 space,
adamc@272 693 string "__lwr_",
adamc@272 694 string x,
adamc@272 695 string "_",
adamc@272 696 string (Int.toString (E.countERels env)),
adamc@269 697 space,
adamc@269 698 string "=",
adamc@269 699 space,
adamc@269 700 p_exp env e1,
adamc@269 701 string ";",
adamc@269 702 newline,
adamc@269 703 p_exp (E.pushERel env x t) e2,
adamc@269 704 string ";",
adamc@269 705 newline,
adamc@269 706 string "})"]
adamc@269 707
adamc@282 708 | EQuery {exps, tables, rnum, state, query, body, initial, prepared} =>
adamc@278 709 let
adamc@278 710 val exps = map (fn (x, t) => ("__lwf_" ^ x, t)) exps
adamc@278 711 val tables = ListUtil.mapConcat (fn (x, xts) =>
adamc@278 712 map (fn (x', t) => ("__lwf_" ^ x ^ ".__lwf_" ^ x', t)) xts)
adamc@278 713 tables
adamc@278 714
adamc@278 715 val outputs = exps @ tables
adamc@278 716 in
adamc@278 717 box [string "({",
adamc@278 718 newline,
adamc@278 719 string "PGconn *conn = lw_get_db(ctx);",
adamc@278 720 newline,
adamc@282 721 case prepared of
adamc@282 722 NONE => box [string "char *query = ",
adamc@282 723 p_exp env query,
adamc@282 724 string ";",
adamc@282 725 newline]
adamc@282 726 | SOME _ =>
adamc@282 727 let
adamc@282 728 val ets = getPargs query
adamc@282 729 in
adamc@282 730 box [p_list_sepi newline
adamc@282 731 (fn i => fn (e, t) =>
adamc@282 732 box [p_sql_type t,
adamc@282 733 space,
adamc@282 734 string "arg",
adamc@282 735 string (Int.toString (i + 1)),
adamc@282 736 space,
adamc@282 737 string "=",
adamc@282 738 space,
adamc@282 739 p_exp env e,
adamc@282 740 string ";"])
adamc@282 741 ets,
adamc@282 742 newline,
adamc@282 743 newline,
adamc@282 744
adamc@282 745 string "const char *paramValues[] = { ",
adamc@282 746 p_list_sepi (box [string ",", space])
adamc@282 747 (fn i => fn (_, t) => p_ensql t (box [string "arg",
adamc@282 748 string (Int.toString (i + 1))]))
adamc@282 749 ets,
adamc@282 750 string " };",
adamc@282 751 newline,
adamc@282 752 newline,
adamc@282 753
adamc@282 754 string "const int paramLengths[] = { ",
adamc@282 755 p_list_sepi (box [string ",", space])
adamc@282 756 (fn i => fn (_, t) => p_ensql_len t (box [string "arg",
adamc@282 757 string (Int.toString (i + 1))]))
adamc@282 758 ets,
adamc@282 759 string " };",
adamc@282 760 newline,
adamc@282 761 newline,
adamc@282 762
adamc@282 763 string "const static int paramFormats[] = { ",
adamc@282 764 p_list_sep (box [string ",", space]) (fn _ => string "1") ets,
adamc@282 765 string " };",
adamc@282 766 newline,
adamc@282 767 newline]
adamc@282 768 end,
adamc@278 769 string "int n, i;",
adamc@278 770 newline,
adamc@278 771 p_typ env state,
adamc@278 772 space,
adamc@278 773 string "acc",
adamc@278 774 space,
adamc@278 775 string "=",
adamc@278 776 space,
adamc@278 777 p_exp env initial,
adamc@278 778 string ";",
adamc@278 779 newline,
adamc@282 780 string "PGresult *res = ",
adamc@282 781 case prepared of
adamc@282 782 NONE => string "PQexecParams(conn, query, 0, NULL, NULL, NULL, NULL, 1);"
adamc@282 783 | SOME n => box [string "PQexecPrepared(conn, \"lw",
adamc@282 784 string (Int.toString n),
adamc@282 785 string "\", ",
adamc@282 786 string (Int.toString (length (getPargs query))),
adamc@282 787 string ", paramValues, paramLengths, paramFormats, 1);"],
adamc@278 788 newline,
adamc@278 789 newline,
adamc@277 790
adamc@278 791 string "if (res == NULL) lw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@278 792 newline,
adamc@278 793 newline,
adamc@277 794
adamc@278 795 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@278 796 newline,
adamc@278 797 box [string "PQclear(res);",
adamc@278 798 newline,
adamc@278 799 string "lw_error(ctx, FATAL, \"",
adamc@278 800 string (ErrorMsg.spanToString loc),
adamc@282 801 string ": Query failed:\\n%s\\n%s\", ",
adamc@282 802 case prepared of
adamc@282 803 NONE => string "query"
adamc@282 804 | SOME _ => p_exp env query,
adamc@282 805 string ", PQerrorMessage(conn));",
adamc@278 806 newline],
adamc@278 807 string "}",
adamc@278 808 newline,
adamc@278 809 newline,
adamc@277 810
adamc@278 811 string "n = PQntuples(res);",
adamc@278 812 newline,
adamc@278 813 string "for (i = 0; i < n; ++i) {",
adamc@278 814 newline,
adamc@278 815 box [string "struct",
adamc@278 816 space,
adamc@278 817 string "__lws_",
adamc@278 818 string (Int.toString rnum),
adamc@278 819 space,
adamc@278 820 string "__lwr_r_",
adamc@278 821 string (Int.toString (E.countERels env)),
adamc@278 822 string ";",
adamc@278 823 newline,
adamc@278 824 p_typ env state,
adamc@278 825 space,
adamc@278 826 string "__lwr_acc_",
adamc@278 827 string (Int.toString (E.countERels env + 1)),
adamc@278 828 space,
adamc@278 829 string "=",
adamc@278 830 space,
adamc@278 831 string "acc;",
adamc@278 832 newline,
adamc@278 833 newline,
adamc@278 834
adamc@278 835 p_list_sepi (box []) (fn i =>
adamc@278 836 fn (proj, t) =>
adamc@278 837 box [string "__lwr_r_",
adamc@278 838 string (Int.toString (E.countERels env)),
adamc@278 839 string ".",
adamc@278 840 string proj,
adamc@278 841 space,
adamc@278 842 string "=",
adamc@278 843 space,
adamc@278 844 p_unsql env t
adamc@278 845 (box [string "PQgetvalue(res, i, ",
adamc@278 846 string (Int.toString i),
adamc@278 847 string ")"]),
adamc@278 848 string ";",
adamc@278 849 newline]) outputs,
adamc@278 850
adamc@278 851 newline,
adamc@278 852 newline,
adamc@278 853
adamc@278 854 string "acc",
adamc@278 855 space,
adamc@278 856 string "=",
adamc@278 857 space,
adamc@278 858 p_exp (E.pushERel
adamc@278 859 (E.pushERel env "r" (TRecord rnum, loc))
adamc@278 860 "acc" state)
adamc@278 861 body,
adamc@278 862 string ";",
adamc@278 863 newline],
adamc@278 864 string "}",
adamc@278 865 newline,
adamc@278 866 newline,
adamc@278 867 string "PQclear(res);",
adamc@278 868 newline,
adamc@278 869 string "acc;",
adamc@278 870 newline,
adamc@278 871 string "})"]
adamc@278 872 end
adamc@106 873
adamc@29 874 and p_exp env = p_exp' false env
adamc@29 875
adamc@129 876 fun p_fun env (fx, n, args, ran, e) =
adamc@129 877 let
adamc@129 878 val nargs = length args
adamc@129 879 val env' = foldl (fn ((x, dom), env) => E.pushERel env x dom) env args
adamc@129 880 in
adamc@129 881 box [string "static",
adamc@129 882 space,
adamc@129 883 p_typ env ran,
adamc@129 884 space,
adamc@129 885 string ("__lwn_" ^ fx ^ "_" ^ Int.toString n),
adamc@129 886 string "(",
adamc@129 887 p_list_sep (box [string ",", space]) (fn x => x)
adamc@129 888 (string "lw_context ctx" :: ListUtil.mapi (fn (i, (_, dom)) =>
adamc@129 889 box [p_typ env dom,
adamc@129 890 space,
adamc@129 891 p_rel env' (nargs - i - 1)]) args),
adamc@129 892 string ")",
adamc@129 893 space,
adamc@129 894 string "{",
adamc@129 895 newline,
adamc@129 896 box[string "return(",
adamc@129 897 p_exp env' e,
adamc@129 898 string ");"],
adamc@129 899 newline,
adamc@129 900 string "}"]
adamc@129 901 end
adamc@129 902
adamc@129 903 fun p_decl env (dAll as (d, _) : decl) =
adamc@29 904 case d of
adamc@29 905 DStruct (n, xts) =>
adamc@196 906 let
adamc@196 907 val env = E.declBinds env dAll
adamc@196 908 in
adamc@196 909 box [string "struct",
adamc@196 910 space,
adamc@196 911 string ("__lws_" ^ Int.toString n),
adamc@196 912 space,
adamc@196 913 string "{",
adamc@196 914 newline,
adamc@196 915 p_list_sep (box []) (fn (x, t) => box [p_typ env t,
adamc@196 916 space,
adamc@196 917 string "__lwf_",
adamc@196 918 string x,
adamc@196 919 string ";",
adamc@196 920 newline]) xts,
adamc@196 921 string "};"]
adamc@196 922 end
adamc@188 923 | DDatatype (Enum, x, n, xncs) =>
adamc@188 924 box [string "enum",
adamc@188 925 space,
adamc@188 926 string ("__lwe_" ^ x ^ "_" ^ Int.toString n),
adamc@188 927 space,
adamc@188 928 string "{",
adamc@188 929 space,
adamc@188 930 p_list_sep (box [string ",", space]) (fn (x, n, _) => string ("__lwc_" ^ x ^ "_" ^ Int.toString n)) xncs,
adamc@188 931 space,
adamc@188 932 string "};"]
adamc@198 933 | DDatatype (Option, _, _, _) => box []
adamc@188 934 | DDatatype (Default, x, n, xncs) =>
adamc@165 935 let
adamc@165 936 val xncsArgs = List.mapPartial (fn (x, n, NONE) => NONE
adamc@165 937 | (x, n, SOME t) => SOME (x, n, t)) xncs
adamc@165 938 in
adamc@165 939 box [string "enum",
adamc@165 940 space,
adamc@165 941 string ("__lwe_" ^ x ^ "_" ^ Int.toString n),
adamc@165 942 space,
adamc@165 943 string "{",
adamc@165 944 space,
adamc@165 945 p_list_sep (box [string ",", space]) (fn (x, n, _) => string ("__lwc_" ^ x ^ "_" ^ Int.toString n)) xncs,
adamc@165 946 space,
adamc@165 947 string "};",
adamc@165 948 newline,
adamc@165 949 newline,
adamc@165 950 string "struct",
adamc@165 951 space,
adamc@167 952 string ("__lwd_" ^ x ^ "_" ^ Int.toString n),
adamc@165 953 space,
adamc@165 954 string "{",
adamc@165 955 newline,
adamc@165 956 string "enum",
adamc@165 957 space,
adamc@165 958 string ("__lwe_" ^ x ^ "_" ^ Int.toString n),
adamc@165 959 space,
adamc@165 960 string "tag;",
adamc@165 961 newline,
adamc@165 962 box (case xncsArgs of
adamc@165 963 [] => []
adamc@165 964 | _ => [string "union",
adamc@165 965 space,
adamc@165 966 string "{",
adamc@165 967 newline,
adamc@165 968 p_list_sep newline (fn (x, n, t) => box [p_typ env t,
adamc@165 969 space,
adamc@196 970 string ("lw_" ^ x),
adamc@165 971 string ";"]) xncsArgs,
adamc@165 972 newline,
adamc@165 973 string "}",
adamc@165 974 space,
adamc@165 975 string "data;",
adamc@165 976 newline]),
adamc@165 977 string "};"]
adamc@188 978 end
adamc@29 979
adamc@196 980 | DDatatypeForward _ => box []
adamc@196 981
adamc@29 982 | DVal (x, n, t, e) =>
adamc@29 983 box [p_typ env t,
adamc@29 984 space,
adamc@29 985 string ("__lwn_" ^ x ^ "_" ^ Int.toString n),
adamc@29 986 space,
adamc@29 987 string "=",
adamc@29 988 space,
adamc@29 989 p_exp env e,
adamc@29 990 string ";"]
adamc@129 991 | DFun vi => p_fun env vi
adamc@129 992 | DFunRec vis =>
adamc@29 993 let
adamc@129 994 val env = E.declBinds env dAll
adamc@29 995 in
adamc@129 996 box [p_list_sep newline (fn (fx, n, args, ran, _) =>
adamc@129 997 box [string "static",
adamc@129 998 space,
adamc@129 999 p_typ env ran,
adamc@129 1000 space,
adamc@129 1001 string ("__lwn_" ^ fx ^ "_" ^ Int.toString n),
adamc@129 1002 string "(lw_context,",
adamc@129 1003 space,
adamc@129 1004 p_list_sep (box [string ",", space])
adamc@129 1005 (fn (_, dom) => p_typ env dom) args,
adamc@129 1006 string ");"]) vis,
adamc@29 1007 newline,
adamc@129 1008 p_list_sep newline (p_fun env) vis,
adamc@129 1009 newline]
adamc@29 1010 end
adamc@273 1011 | DTable (x, _) => box [string "/* SQL table ",
adamc@273 1012 string x,
adamc@273 1013 string " */",
adamc@273 1014 newline]
adamc@275 1015 | DDatabase s => box [string "static void lw_db_validate(lw_context);",
adamc@272 1016 newline,
adamc@282 1017 string "static void lw_db_prepare(lw_context);",
adamc@282 1018 newline,
adamc@275 1019 newline,
adamc@275 1020 string "void lw_db_init(lw_context ctx) {",
adamc@273 1021 newline,
adamc@272 1022 string "PGconn *conn = PQconnectdb(\"",
adamc@272 1023 string (String.toString s),
adamc@272 1024 string "\");",
adamc@272 1025 newline,
adamc@272 1026 string "if (conn == NULL) lw_error(ctx, BOUNDED_RETRY, ",
adamc@272 1027 string "\"libpq can't allocate a connection.\");",
adamc@272 1028 newline,
adamc@272 1029 string "if (PQstatus(conn) != CONNECTION_OK) {",
adamc@272 1030 newline,
adamc@272 1031 box [string "char msg[1024];",
adamc@272 1032 newline,
adamc@272 1033 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@272 1034 newline,
adamc@272 1035 string "msg[1023] = 0;",
adamc@272 1036 newline,
adamc@272 1037 string "PQfinish(conn);",
adamc@272 1038 newline,
adamc@272 1039 string "lw_error(ctx, BOUNDED_RETRY, ",
adamc@272 1040 string "\"Connection to Postgres server failed: %s\", msg);"],
adamc@272 1041 newline,
adamc@272 1042 string "}",
adamc@272 1043 newline,
adamc@272 1044 string "lw_set_db(ctx, conn);",
adamc@272 1045 newline,
adamc@275 1046 string "lw_db_validate(ctx);",
adamc@275 1047 newline,
adamc@282 1048 string "lw_db_prepare(ctx);",
adamc@282 1049 newline,
adamc@272 1050 string "}",
adamc@272 1051 newline,
adamc@272 1052 newline,
adamc@272 1053 string "void lw_db_close(lw_context ctx) {",
adamc@272 1054 newline,
adamc@272 1055 string "PQfinish(lw_get_db(ctx));",
adamc@272 1056 newline,
adamc@272 1057 string "}",
adamc@272 1058 newline]
adamc@29 1059
adamc@282 1060 | DPreparedStatements ss =>
adamc@282 1061 box [string "static void lw_db_prepare(lw_context ctx) {",
adamc@282 1062 newline,
adamc@282 1063 string "PGconn *conn = lw_get_db(ctx);",
adamc@282 1064 newline,
adamc@282 1065 string "PGresult *res;",
adamc@282 1066 newline,
adamc@282 1067 newline,
adamc@282 1068
adamc@282 1069 p_list_sepi newline (fn i => fn (s, n) =>
adamc@282 1070 box [string "res = PQprepare(conn, \"lw",
adamc@282 1071 string (Int.toString i),
adamc@282 1072 string "\", \"",
adamc@282 1073 string (String.toString s),
adamc@282 1074 string "\", ",
adamc@282 1075 string (Int.toString n),
adamc@282 1076 string ", NULL);",
adamc@282 1077 newline,
adamc@282 1078 string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@282 1079 newline,
adamc@282 1080 box [string "char msg[1024];",
adamc@282 1081 newline,
adamc@282 1082 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@282 1083 newline,
adamc@282 1084 string "msg[1023] = 0;",
adamc@282 1085 newline,
adamc@282 1086 string "PQclear(res);",
adamc@282 1087 newline,
adamc@282 1088 string "PQfinish(conn);",
adamc@282 1089 newline,
adamc@282 1090 string "lw_error(ctx, FATAL, \"Unable to create prepared statement:\\n",
adamc@282 1091 string (String.toString s),
adamc@282 1092 string "\\n%s\", msg);",
adamc@282 1093 newline],
adamc@282 1094 string "}",
adamc@282 1095 newline,
adamc@282 1096 string "PQclear(res);",
adamc@282 1097 newline])
adamc@282 1098 ss,
adamc@282 1099
adamc@282 1100 string "}"]
adamc@282 1101
adamc@144 1102 datatype 'a search =
adamc@144 1103 Found of 'a
adamc@144 1104 | NotFound
adamc@144 1105 | Error
adamc@120 1106
adamc@275 1107 fun p_sqltype' env (tAll as (t, loc)) =
adamc@275 1108 case t of
adamc@275 1109 TFfi ("Basis", "int") => "int8"
adamc@275 1110 | TFfi ("Basis", "float") => "float8"
adamc@275 1111 | TFfi ("Basis", "string") => "text"
adamc@275 1112 | TFfi ("Basis", "bool") => "bool"
adamc@275 1113 | _ => (ErrorMsg.errorAt loc "Don't know SQL equivalent of type";
adamc@275 1114 Print.eprefaces' [("Type", p_typ env tAll)];
adamc@275 1115 "ERROR")
adamc@275 1116
adamc@275 1117 fun p_sqltype env t = string (p_sqltype' env t)
adamc@101 1118
adamc@101 1119 fun p_file env (ds, ps) =
adamc@29 1120 let
adamc@101 1121 val (pds, env) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 1122 (p_decl env d,
adamc@31 1123 E.declBinds env d))
adamc@101 1124 env ds
adamc@144 1125
adamc@144 1126 val fields = foldl (fn ((ek, _, _, ts), fields) =>
adamc@144 1127 case ek of
adamc@144 1128 Core.Link => fields
adamc@144 1129 | Core.Action =>
adamc@280 1130 case List.nth (ts, length ts - 2) of
adamc@144 1131 (TRecord i, _) =>
adamc@144 1132 let
adamc@144 1133 val xts = E.lookupStruct env i
adamc@144 1134 val xtsSet = SS.addList (SS.empty, map #1 xts)
adamc@144 1135 in
adamc@144 1136 foldl (fn ((x, _), fields) =>
adamc@144 1137 let
adamc@144 1138 val xtsSet' = Option.getOpt (SM.find (fields, x), SS.empty)
adamc@144 1139 in
adamc@144 1140 SM.insert (fields, x, SS.union (SS.delete (xtsSet, x),
adamc@144 1141 xtsSet'))
adamc@144 1142 end) fields xts
adamc@144 1143 end
adamc@144 1144 | _ => raise Fail "CjrPrint: Last argument of action isn't record")
adamc@144 1145 SM.empty ps
adamc@144 1146
adamc@144 1147 val fnums = SM.foldli (fn (x, xs, fnums) =>
adamc@144 1148 let
adamc@144 1149 val unusable = SS.foldl (fn (x', unusable) =>
adamc@144 1150 case SM.find (fnums, x') of
adamc@144 1151 NONE => unusable
adamc@144 1152 | SOME n => IS.add (unusable, n))
adamc@144 1153 IS.empty xs
adamc@144 1154
adamc@144 1155 fun findAvailable n =
adamc@144 1156 if IS.member (unusable, n) then
adamc@144 1157 findAvailable (n + 1)
adamc@144 1158 else
adamc@144 1159 n
adamc@144 1160 in
adamc@144 1161 SM.insert (fnums, x, findAvailable 0)
adamc@144 1162 end)
adamc@144 1163 SM.empty fields
adamc@144 1164
adamc@144 1165 fun makeSwitch (fnums, i) =
adamc@144 1166 case SM.foldl (fn (n, NotFound) => Found n
adamc@144 1167 | (n, Error) => Error
adamc@144 1168 | (n, Found n') => if n = n' then
adamc@144 1169 Found n'
adamc@144 1170 else
adamc@144 1171 Error) NotFound fnums of
adamc@144 1172 NotFound => box [string "return",
adamc@144 1173 space,
adamc@144 1174 string "-1;"]
adamc@144 1175 | Found n => box [string "return",
adamc@144 1176 space,
adamc@144 1177 string (Int.toString n),
adamc@144 1178 string ";"]
adamc@144 1179 | Error =>
adamc@144 1180 let
adamc@144 1181 val cmap = SM.foldli (fn (x, n, cmap) =>
adamc@144 1182 let
adamc@144 1183 val ch = if i < size x then
adamc@144 1184 String.sub (x, i)
adamc@144 1185 else
adamc@144 1186 chr 0
adamc@144 1187
adamc@144 1188 val fnums = case CM.find (cmap, ch) of
adamc@144 1189 NONE => SM.empty
adamc@144 1190 | SOME fnums => fnums
adamc@144 1191 val fnums = SM.insert (fnums, x, n)
adamc@144 1192 in
adamc@144 1193 CM.insert (cmap, ch, fnums)
adamc@144 1194 end)
adamc@144 1195 CM.empty fnums
adamc@144 1196
adamc@144 1197 val cmap = CM.listItemsi cmap
adamc@144 1198 in
adamc@144 1199 case cmap of
adamc@144 1200 [(_, fnums)] =>
adamc@144 1201 box [string "if",
adamc@144 1202 space,
adamc@144 1203 string "(name[",
adamc@144 1204 string (Int.toString i),
adamc@144 1205 string "]",
adamc@144 1206 space,
adamc@144 1207 string "==",
adamc@144 1208 space,
adamc@144 1209 string "0)",
adamc@144 1210 space,
adamc@144 1211 string "return",
adamc@144 1212 space,
adamc@144 1213 string "-1;",
adamc@144 1214 newline,
adamc@144 1215 makeSwitch (fnums, i+1)]
adamc@144 1216 | _ =>
adamc@144 1217 box [string "switch",
adamc@144 1218 space,
adamc@144 1219 string "(name[",
adamc@144 1220 string (Int.toString i),
adamc@144 1221 string "])",
adamc@144 1222 space,
adamc@144 1223 string "{",
adamc@144 1224 newline,
adamc@144 1225 box (map (fn (ch, fnums) =>
adamc@144 1226 box [string "case",
adamc@144 1227 space,
adamc@144 1228 if ch = chr 0 then
adamc@144 1229 string "0:"
adamc@144 1230 else
adamc@144 1231 box [string "'",
adamc@144 1232 string (Char.toString ch),
adamc@144 1233 string "':"],
adamc@144 1234 newline,
adamc@144 1235 makeSwitch (fnums, i+1),
adamc@144 1236 newline]) cmap),
adamc@144 1237 string "default:",
adamc@144 1238 newline,
adamc@144 1239 string "return",
adamc@144 1240 space,
adamc@144 1241 string "-1;",
adamc@144 1242 newline,
adamc@144 1243 string "}"]
adamc@144 1244 end
adamc@144 1245
adamc@186 1246 fun capitalize s =
adamc@186 1247 if s = "" then
adamc@186 1248 ""
adamc@186 1249 else
adamc@186 1250 str (Char.toUpper (String.sub (s, 0))) ^ String.extract (s, 1, NONE)
adamc@186 1251
adamc@144 1252 fun unurlify (t, loc) =
adamc@144 1253 case t of
adamc@186 1254 TFfi (m, t) => string ("lw_" ^ m ^ "_unurlify" ^ capitalize t ^ "(ctx, &request)")
adamc@144 1255
adamc@144 1256 | TRecord 0 => string "lw_unit_v"
adamc@144 1257 | TRecord i =>
adamc@144 1258 let
adamc@144 1259 val xts = E.lookupStruct env i
adamc@144 1260 in
adamc@144 1261 box [string "({",
adamc@144 1262 newline,
adamc@144 1263 box (map (fn (x, t) =>
adamc@144 1264 box [p_typ env t,
adamc@144 1265 space,
adamc@144 1266 string x,
adamc@144 1267 space,
adamc@144 1268 string "=",
adamc@144 1269 space,
adamc@144 1270 unurlify t,
adamc@144 1271 string ";",
adamc@144 1272 newline]) xts),
adamc@144 1273 string "struct",
adamc@144 1274 space,
adamc@144 1275 string "__lws_",
adamc@144 1276 string (Int.toString i),
adamc@144 1277 space,
adamc@181 1278 string "tmp",
adamc@144 1279 space,
adamc@144 1280 string "=",
adamc@144 1281 space,
adamc@144 1282 string "{",
adamc@144 1283 space,
adamc@144 1284 p_list_sep (box [string ",", space]) (fn (x, _) => string x) xts,
adamc@144 1285 space,
adamc@144 1286 string "};",
adamc@144 1287 newline,
adamc@181 1288 string "tmp;",
adamc@144 1289 newline,
adamc@144 1290 string "})"]
adamc@144 1291 end
adamc@144 1292
adamc@188 1293 | TDatatype (Enum, i, _) =>
adamc@188 1294 let
adamc@188 1295 val (x, xncs) = E.lookupDatatype env i
adamc@188 1296
adamc@188 1297 fun doEm xncs =
adamc@188 1298 case xncs of
adamc@188 1299 [] => string ("(lw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), (enum __lwe_"
adamc@188 1300 ^ x ^ "_" ^ Int.toString i ^ ")0)")
adamc@188 1301 | (x', n, to) :: rest =>
adamc@188 1302 box [string "((!strncmp(request, \"",
adamc@188 1303 string x',
adamc@188 1304 string "\", ",
adamc@188 1305 string (Int.toString (size x')),
adamc@188 1306 string ") && (request[",
adamc@188 1307 string (Int.toString (size x')),
adamc@188 1308 string "] == 0 || request[",
adamc@188 1309 string (Int.toString (size x')),
adamc@188 1310 string ("] == '/')) ? __lwc_" ^ x' ^ "_" ^ Int.toString n),
adamc@188 1311 space,
adamc@188 1312 string ":",
adamc@188 1313 space,
adamc@188 1314 doEm rest,
adamc@188 1315 string ")"]
adamc@188 1316 in
adamc@188 1317 doEm xncs
adamc@188 1318 end
adamc@188 1319
adamc@198 1320 | TDatatype (Option, i, xncs) =>
adamc@198 1321 let
adamc@198 1322 val (x, _) = E.lookupDatatype env i
adamc@198 1323
adamc@198 1324 val (no_arg, has_arg, t) =
adamc@198 1325 case !xncs of
adamc@198 1326 [(no_arg, _, NONE), (has_arg, _, SOME t)] =>
adamc@198 1327 (no_arg, has_arg, t)
adamc@198 1328 | [(has_arg, _, SOME t), (no_arg, _, NONE)] =>
adamc@198 1329 (no_arg, has_arg, t)
adamc@198 1330 | _ => raise Fail "CjrPrint: unfooify misclassified Option datatype"
adamc@198 1331 in
adamc@198 1332 box [string "(request[0] == '/' ? ++request : request,",
adamc@198 1333 newline,
adamc@198 1334 string "((!strncmp(request, \"",
adamc@198 1335 string no_arg,
adamc@198 1336 string "\", ",
adamc@198 1337 string (Int.toString (size no_arg)),
adamc@198 1338 string ") && (request[",
adamc@198 1339 string (Int.toString (size no_arg)),
adamc@198 1340 string "] == 0 || request[",
adamc@198 1341 string (Int.toString (size no_arg)),
adamc@198 1342 string "] == '/')) ? (request",
adamc@198 1343 space,
adamc@198 1344 string "+=",
adamc@198 1345 space,
adamc@198 1346 string (Int.toString (size no_arg)),
adamc@198 1347 string ", NULL) : ((!strncmp(request, \"",
adamc@198 1348 string has_arg,
adamc@198 1349 string "\", ",
adamc@198 1350 string (Int.toString (size has_arg)),
adamc@198 1351 string ") && (request[",
adamc@198 1352 string (Int.toString (size has_arg)),
adamc@198 1353 string "] == 0 || request[",
adamc@198 1354 string (Int.toString (size has_arg)),
adamc@198 1355 string "] == '/')) ? (request",
adamc@198 1356 space,
adamc@198 1357 string "+=",
adamc@198 1358 space,
adamc@198 1359 string (Int.toString (size has_arg)),
adamc@200 1360 string ", (request[0] == '/' ? ++request : NULL), ",
adamc@200 1361 newline,
adamc@198 1362
adamc@198 1363 case #1 t of
adamc@198 1364 TDatatype _ => unurlify t
adamc@199 1365 | TFfi ("Basis", "string") => unurlify t
adamc@198 1366 | _ => box [string "({",
adamc@198 1367 newline,
adamc@198 1368 p_typ env t,
adamc@198 1369 space,
adamc@198 1370 string "*tmp",
adamc@198 1371 space,
adamc@198 1372 string "=",
adamc@198 1373 space,
adamc@198 1374 string "lw_malloc(ctx, sizeof(",
adamc@198 1375 p_typ env t,
adamc@198 1376 string "));",
adamc@198 1377 newline,
adamc@198 1378 string "*tmp",
adamc@198 1379 space,
adamc@198 1380 string "=",
adamc@198 1381 space,
adamc@198 1382 unurlify t,
adamc@198 1383 string ";",
adamc@198 1384 newline,
adamc@198 1385 string "tmp;",
adamc@198 1386 newline,
adamc@198 1387 string "})"],
adamc@198 1388 string ")",
adamc@198 1389 newline,
adamc@198 1390 string ":",
adamc@198 1391 space,
adamc@198 1392 string ("(lw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), NULL))))")]
adamc@198 1393 end
adamc@198 1394
adamc@188 1395 | TDatatype (Default, i, _) =>
adamc@166 1396 let
adamc@166 1397 val (x, xncs) = E.lookupDatatype env i
adamc@166 1398
adamc@166 1399 fun doEm xncs =
adamc@166 1400 case xncs of
adamc@167 1401 [] => string ("(lw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), NULL)")
adamc@167 1402 | (x', n, to) :: rest =>
adamc@167 1403 box [string "((!strncmp(request, \"",
adamc@167 1404 string x',
adamc@167 1405 string "\", ",
adamc@167 1406 string (Int.toString (size x')),
adamc@167 1407 string ") && (request[",
adamc@167 1408 string (Int.toString (size x')),
adamc@167 1409 string "] == 0 || request[",
adamc@167 1410 string (Int.toString (size x')),
adamc@167 1411 string "] == '/')) ? ({",
adamc@166 1412 newline,
adamc@167 1413 string "struct",
adamc@167 1414 space,
adamc@166 1415 string ("__lwd_" ^ x ^ "_" ^ Int.toString i),
adamc@166 1416 space,
adamc@181 1417 string "*tmp = lw_malloc(ctx, sizeof(struct __lwd_",
adamc@167 1418 string x,
adamc@167 1419 string "_",
adamc@167 1420 string (Int.toString i),
adamc@167 1421 string "));",
adamc@166 1422 newline,
adamc@181 1423 string "tmp->tag",
adamc@166 1424 space,
adamc@166 1425 string "=",
adamc@166 1426 space,
adamc@167 1427 string ("__lwc_" ^ x' ^ "_" ^ Int.toString n),
adamc@166 1428 string ";",
adamc@166 1429 newline,
adamc@166 1430 string "request",
adamc@166 1431 space,
adamc@166 1432 string "+=",
adamc@166 1433 space,
adamc@167 1434 string (Int.toString (size x')),
adamc@166 1435 string ";",
adamc@166 1436 newline,
adamc@200 1437 string "if (request[0] == '/') ++request;",
adamc@200 1438 newline,
adamc@166 1439 case to of
adamc@166 1440 NONE => box []
adamc@197 1441 | SOME t => box [string "tmp->data.lw_",
adamc@167 1442 string x',
adamc@166 1443 space,
adamc@166 1444 string "=",
adamc@166 1445 space,
adamc@166 1446 unurlify t,
adamc@166 1447 string ";",
adamc@166 1448 newline],
adamc@181 1449 string "tmp;",
adamc@166 1450 newline,
adamc@166 1451 string "})",
adamc@166 1452 space,
adamc@166 1453 string ":",
adamc@166 1454 space,
adamc@166 1455 doEm rest,
adamc@166 1456 string ")"]
adamc@166 1457 in
adamc@166 1458 doEm xncs
adamc@166 1459 end
adamc@166 1460
adamc@144 1461 | _ => (ErrorMsg.errorAt loc "Unable to choose a URL decoding function";
adamc@144 1462 space)
adamc@144 1463
adamc@144 1464
adamc@144 1465 fun p_page (ek, s, n, ts) =
adamc@144 1466 let
adamc@144 1467 val (ts, defInputs, inputsVar) =
adamc@144 1468 case ek of
adamc@144 1469 Core.Link => (ts, string "", string "")
adamc@144 1470 | Core.Action =>
adamc@280 1471 case List.nth (ts, length ts - 2) of
adamc@144 1472 (TRecord i, _) =>
adamc@144 1473 let
adamc@144 1474 val xts = E.lookupStruct env i
adamc@144 1475 in
adamc@280 1476 (List.take (ts, length ts - 2),
adamc@144 1477 box [box (map (fn (x, t) => box [p_typ env t,
adamc@144 1478 space,
adamc@144 1479 string "lw_input_",
adamc@144 1480 string x,
adamc@144 1481 string ";",
adamc@144 1482 newline]) xts),
adamc@144 1483 newline,
adamc@144 1484 box (map (fn (x, t) =>
adamc@144 1485 let
adamc@144 1486 val n = case SM.find (fnums, x) of
adamc@144 1487 NONE => raise Fail "CjrPrint: Can't find in fnums"
adamc@144 1488 | SOME n => n
adamc@190 1489
adamc@190 1490 val f = case t of
adamc@190 1491 (TFfi ("Basis", "bool"), _) => "optional_"
adamc@190 1492 | _ => ""
adamc@144 1493 in
adamc@190 1494 box [string "request = lw_get_",
adamc@190 1495 string f,
adamc@190 1496 string "input(ctx, ",
adamc@144 1497 string (Int.toString n),
adamc@144 1498 string ");",
adamc@144 1499 newline,
adamc@144 1500 string "if (request == NULL) {",
adamc@144 1501 newline,
adamc@144 1502 box [string "printf(\"Missing input ",
adamc@144 1503 string x,
adamc@144 1504 string "\\n\");",
adamc@144 1505 newline,
adamc@144 1506 string "exit(1);"],
adamc@144 1507 newline,
adamc@144 1508 string "}",
adamc@144 1509 newline,
adamc@144 1510 string "lw_input_",
adamc@144 1511 string x,
adamc@144 1512 space,
adamc@144 1513 string "=",
adamc@144 1514 space,
adamc@144 1515 unurlify t,
adamc@144 1516 string ";",
adamc@144 1517 newline]
adamc@144 1518 end) xts),
adamc@144 1519 string "struct __lws_",
adamc@144 1520 string (Int.toString i),
adamc@144 1521 space,
adamc@144 1522 string "lw_inputs",
adamc@144 1523 space,
adamc@144 1524 string "= {",
adamc@144 1525 newline,
adamc@144 1526 box (map (fn (x, _) => box [string "lw_input_",
adamc@144 1527 string x,
adamc@144 1528 string ",",
adamc@144 1529 newline]) xts),
adamc@144 1530 string "};",
adamc@144 1531 newline],
adamc@144 1532 box [string ",",
adamc@144 1533 space,
adamc@144 1534 string "lw_inputs"])
adamc@144 1535 end
adamc@144 1536
adamc@144 1537 | _ => raise Fail "CjrPrint: Last argument to an action isn't a record"
adamc@144 1538 in
adamc@144 1539 box [string "if (!strncmp(request, \"",
adamc@144 1540 string (String.toString s),
adamc@144 1541 string "\", ",
adamc@144 1542 string (Int.toString (size s)),
adamc@198 1543 string ") && (request[",
adamc@198 1544 string (Int.toString (size s)),
adamc@198 1545 string "] == 0 || request[",
adamc@198 1546 string (Int.toString (size s)),
adamc@198 1547 string "] == '/')) {",
adamc@144 1548 newline,
adamc@144 1549 string "request += ",
adamc@144 1550 string (Int.toString (size s)),
adamc@144 1551 string ";",
adamc@144 1552 newline,
adamc@144 1553 string "if (*request == '/') ++request;",
adamc@144 1554 newline,
adamc@144 1555 box [string "{",
adamc@144 1556 newline,
adamc@144 1557 box (ListUtil.mapi (fn (i, t) => box [p_typ env t,
adamc@144 1558 space,
adamc@144 1559 string "arg",
adamc@144 1560 string (Int.toString i),
adamc@144 1561 space,
adamc@144 1562 string "=",
adamc@144 1563 space,
adamc@144 1564 unurlify t,
adamc@144 1565 string ";",
adamc@144 1566 newline]) ts),
adamc@144 1567 defInputs,
adamc@144 1568 p_enamed env n,
adamc@144 1569 string "(",
adamc@144 1570 p_list_sep (box [string ",", space])
adamc@144 1571 (fn x => x)
adamc@272 1572 (string "ctx"
adamc@280 1573 :: ListUtil.mapi (fn (i, _) => string ("arg" ^ Int.toString i)) ts),
adamc@144 1574 inputsVar,
adamc@280 1575 string ", lw_unit_v);",
adamc@144 1576 newline,
adamc@144 1577 string "return;",
adamc@144 1578 newline,
adamc@144 1579 string "}",
adamc@144 1580 newline,
adamc@144 1581 string "}"]
adamc@144 1582 ]
adamc@144 1583 end
adamc@144 1584
adamc@144 1585 val pds' = map p_page ps
adamc@275 1586
adamc@275 1587 val tables = List.mapPartial (fn (DTable (s, xts), _) => SOME (s, xts)
adamc@275 1588 | _ => NONE) ds
adamc@275 1589
adamc@275 1590 val validate =
adamc@275 1591 box [string "static void lw_db_validate(lw_context ctx) {",
adamc@275 1592 newline,
adamc@275 1593 string "PGconn *conn = lw_get_db(ctx);",
adamc@275 1594 newline,
adamc@275 1595 string "PGresult *res;",
adamc@275 1596 newline,
adamc@275 1597 newline,
adamc@275 1598 p_list_sep newline
adamc@275 1599 (fn (s, xts) =>
adamc@275 1600 let
adamc@275 1601 val q = "SELECT COUNT(*) FROM pg_class WHERE relname = '"
adamc@275 1602 ^ s ^ "'"
adamc@275 1603
adamc@275 1604 val q' = String.concat ["SELECT COUNT(*) FROM pg_attribute WHERE attrelid = (SELECT oid FROM pg_class WHERE relname = '",
adamc@275 1605 s,
adamc@275 1606 "') AND (",
adamc@275 1607 String.concatWith " OR "
adamc@275 1608 (map (fn (x, t) =>
adamc@275 1609 String.concat ["(attname = 'lw_",
adamc@275 1610 CharVector.map
adamc@275 1611 Char.toLower x,
adamc@275 1612 "' AND atttypid = (SELECT oid FROM pg_type",
adamc@275 1613 " WHERE typname = '",
adamc@275 1614 p_sqltype' env t,
adamc@275 1615 "'))"]) xts),
adamc@275 1616 ")"]
adamc@275 1617
adamc@275 1618 val q'' = String.concat ["SELECT COUNT(*) FROM pg_attribute WHERE attrelid = (SELECT oid FROM pg_class WHERE relname = '",
adamc@275 1619 s,
adamc@275 1620 "') AND attnum >= 0"]
adamc@275 1621 in
adamc@275 1622 box [string "res = PQexec(conn, \"",
adamc@275 1623 string q,
adamc@275 1624 string "\");",
adamc@275 1625 newline,
adamc@275 1626 newline,
adamc@275 1627 string "if (res == NULL) {",
adamc@275 1628 newline,
adamc@275 1629 box [string "PQfinish(conn);",
adamc@275 1630 newline,
adamc@275 1631 string "lw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1632 newline],
adamc@275 1633 string "}",
adamc@275 1634 newline,
adamc@275 1635 newline,
adamc@275 1636 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1637 newline,
adamc@275 1638 box [string "char msg[1024];",
adamc@275 1639 newline,
adamc@275 1640 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1641 newline,
adamc@275 1642 string "msg[1023] = 0;",
adamc@275 1643 newline,
adamc@275 1644 string "PQclear(res);",
adamc@275 1645 newline,
adamc@275 1646 string "PQfinish(conn);",
adamc@275 1647 newline,
adamc@275 1648 string "lw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1649 string q,
adamc@275 1650 string "\\n%s\", msg);",
adamc@275 1651 newline],
adamc@275 1652 string "}",
adamc@275 1653 newline,
adamc@275 1654 newline,
adamc@275 1655 string "if (strcmp(PQgetvalue(res, 0, 0), \"1\")) {",
adamc@275 1656 newline,
adamc@275 1657 box [string "PQclear(res);",
adamc@275 1658 newline,
adamc@275 1659 string "PQfinish(conn);",
adamc@275 1660 newline,
adamc@275 1661 string "lw_error(ctx, FATAL, \"Table '",
adamc@275 1662 string s,
adamc@275 1663 string "' does not exist.\");",
adamc@275 1664 newline],
adamc@275 1665 string "}",
adamc@275 1666 newline,
adamc@275 1667 newline,
adamc@275 1668 string "PQclear(res);",
adamc@275 1669 newline,
adamc@275 1670
adamc@275 1671 string "res = PQexec(conn, \"",
adamc@275 1672 string q',
adamc@275 1673 string "\");",
adamc@275 1674 newline,
adamc@275 1675 newline,
adamc@275 1676 string "if (res == NULL) {",
adamc@275 1677 newline,
adamc@275 1678 box [string "PQfinish(conn);",
adamc@275 1679 newline,
adamc@275 1680 string "lw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1681 newline],
adamc@275 1682 string "}",
adamc@275 1683 newline,
adamc@275 1684 newline,
adamc@275 1685 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1686 newline,
adamc@275 1687 box [string "char msg[1024];",
adamc@275 1688 newline,
adamc@275 1689 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1690 newline,
adamc@275 1691 string "msg[1023] = 0;",
adamc@275 1692 newline,
adamc@275 1693 string "PQclear(res);",
adamc@275 1694 newline,
adamc@275 1695 string "PQfinish(conn);",
adamc@275 1696 newline,
adamc@275 1697 string "lw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1698 string q',
adamc@275 1699 string "\\n%s\", msg);",
adamc@275 1700 newline],
adamc@275 1701 string "}",
adamc@275 1702 newline,
adamc@275 1703 newline,
adamc@275 1704 string "if (strcmp(PQgetvalue(res, 0, 0), \"",
adamc@275 1705 string (Int.toString (length xts)),
adamc@275 1706 string "\")) {",
adamc@275 1707 newline,
adamc@275 1708 box [string "PQclear(res);",
adamc@275 1709 newline,
adamc@275 1710 string "PQfinish(conn);",
adamc@275 1711 newline,
adamc@275 1712 string "lw_error(ctx, FATAL, \"Table '",
adamc@275 1713 string s,
adamc@275 1714 string "' has the wrong column types.\");",
adamc@275 1715 newline],
adamc@275 1716 string "}",
adamc@275 1717 newline,
adamc@275 1718 newline,
adamc@275 1719 string "PQclear(res);",
adamc@275 1720 newline,
adamc@275 1721 newline,
adamc@275 1722
adamc@275 1723 string "res = PQexec(conn, \"",
adamc@275 1724 string q'',
adamc@275 1725 string "\");",
adamc@275 1726 newline,
adamc@275 1727 newline,
adamc@275 1728 string "if (res == NULL) {",
adamc@275 1729 newline,
adamc@275 1730 box [string "PQfinish(conn);",
adamc@275 1731 newline,
adamc@275 1732 string "lw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1733 newline],
adamc@275 1734 string "}",
adamc@275 1735 newline,
adamc@275 1736 newline,
adamc@275 1737 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1738 newline,
adamc@275 1739 box [string "char msg[1024];",
adamc@275 1740 newline,
adamc@275 1741 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1742 newline,
adamc@275 1743 string "msg[1023] = 0;",
adamc@275 1744 newline,
adamc@275 1745 string "PQclear(res);",
adamc@275 1746 newline,
adamc@275 1747 string "PQfinish(conn);",
adamc@275 1748 newline,
adamc@275 1749 string "lw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1750 string q'',
adamc@275 1751 string "\\n%s\", msg);",
adamc@275 1752 newline],
adamc@275 1753 string "}",
adamc@275 1754 newline,
adamc@275 1755 newline,
adamc@275 1756 string "if (strcmp(PQgetvalue(res, 0, 0), \"",
adamc@275 1757 string (Int.toString (length xts)),
adamc@275 1758 string "\")) {",
adamc@275 1759 newline,
adamc@275 1760 box [string "PQclear(res);",
adamc@275 1761 newline,
adamc@275 1762 string "PQfinish(conn);",
adamc@275 1763 newline,
adamc@275 1764 string "lw_error(ctx, FATAL, \"Table '",
adamc@275 1765 string s,
adamc@275 1766 string "' has extra columns.\");",
adamc@275 1767 newline],
adamc@275 1768 string "}",
adamc@275 1769 newline,
adamc@275 1770 newline,
adamc@275 1771 string "PQclear(res);",
adamc@275 1772 newline]
adamc@275 1773 end) tables,
adamc@275 1774 string "}"]
adamc@29 1775 in
adamc@144 1776 box [string "#include <stdio.h>",
adamc@144 1777 newline,
adamc@144 1778 string "#include <stdlib.h>",
adamc@144 1779 newline,
adamc@272 1780 string "#include <string.h>",
adamc@272 1781 newline,
adamc@272 1782 string "#include <postgresql/libpq-fe.h>",
adamc@272 1783 newline,
adamc@144 1784 newline,
adamc@244 1785 string "#include \"urweb.h\"",
adamc@101 1786 newline,
adamc@101 1787 newline,
adamc@101 1788 p_list_sep newline (fn x => x) pds,
adamc@101 1789 newline,
adamc@144 1790 string "int lw_inputs_len = ",
adamc@144 1791 string (Int.toString (SM.foldl Int.max 0 fnums + 1)),
adamc@144 1792 string ";",
adamc@144 1793 newline,
adamc@144 1794 newline,
adamc@144 1795 string "int lw_input_num(char *name) {",
adamc@144 1796 newline,
adamc@144 1797 makeSwitch (fnums, 0),
adamc@144 1798 string "}",
adamc@144 1799 newline,
adamc@144 1800 newline,
adamc@117 1801 string "void lw_handle(lw_context ctx, char *request) {",
adamc@101 1802 newline,
adamc@101 1803 p_list_sep newline (fn x => x) pds',
adamc@101 1804 newline,
adamc@101 1805 string "}",
adamc@275 1806 newline,
adamc@275 1807 newline,
adamc@275 1808 validate,
adamc@101 1809 newline]
adamc@29 1810 end
adamc@29 1811
adamc@274 1812 fun p_sql env (ds, _) =
adamc@274 1813 let
adamc@274 1814 val (pps, _) = ListUtil.foldlMap
adamc@274 1815 (fn (dAll as (d, _), env) =>
adamc@274 1816 let
adamc@274 1817 val pp = case d of
adamc@274 1818 DTable (s, xts) =>
adamc@274 1819 box [string "CREATE TABLE ",
adamc@274 1820 string s,
adamc@274 1821 string "(",
adamc@274 1822 p_list (fn (x, t) =>
adamc@274 1823 box [string "lw_",
adamc@275 1824 string (CharVector.map Char.toLower x),
adamc@274 1825 space,
adamc@274 1826 p_sqltype env t,
adamc@274 1827 space,
adamc@274 1828 string "NOT",
adamc@274 1829 space,
adamc@274 1830 string "NULL"]) xts,
adamc@274 1831 string ");",
adamc@274 1832 newline,
adamc@274 1833 newline]
adamc@274 1834 | _ => box []
adamc@274 1835 in
adamc@274 1836 (pp, E.declBinds env dAll)
adamc@274 1837 end)
adamc@274 1838 env ds
adamc@274 1839 in
adamc@274 1840 box pps
adamc@274 1841 end
adamc@274 1842
adamc@29 1843 end