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annotate src/cjr_print.sml @ 288:4260ad920c36

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Converting string to int
author Adam Chlipala <adamc@hcoop.net>
date Sun, 07 Sep 2008 11:33:13 -0400
parents c0e4ac23522d
children df00701f2323
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@109 523
adamc@53 524 | EFfi (m, x) => box [string "lw_", string m, string "_", string x]
adamc@283 525 | EError (e, t) =>
adamc@283 526 box [string "({",
adamc@283 527 newline,
adamc@283 528 p_typ env t,
adamc@283 529 space,
adamc@283 530 string "tmp;",
adamc@283 531 newline,
adamc@283 532 string "lw_Basis_error(ctx, ",
adamc@283 533 p_exp env e,
adamc@283 534 string ");",
adamc@283 535 newline,
adamc@283 536 string "tmp;",
adamc@283 537 newline,
adamc@283 538 string "})"]
adamc@53 539 | EFfiApp (m, x, es) => box [string "lw_",
adamc@53 540 string m,
adamc@53 541 string "_",
adamc@53 542 string x,
adamc@117 543 string "(ctx, ",
adamc@53 544 p_list (p_exp env) es,
adamc@53 545 string ")"]
adamc@129 546 | EApp (e1, e2) =>
adamc@129 547 let
adamc@129 548 fun unravel (f, acc) =
adamc@129 549 case #1 f of
adamc@129 550 EApp (f', arg) => unravel (f', arg :: acc)
adamc@129 551 | _ => (f, acc)
adamc@129 552
adamc@129 553 val (f, args) = unravel (e1, [e2])
adamc@129 554 in
adamc@129 555 parenIf par (box [p_exp' true env e1,
adamc@129 556 string "(ctx,",
adamc@129 557 space,
adamc@129 558 p_list_sep (box [string ",", space]) (p_exp env) args,
adamc@129 559 string ")"])
adamc@129 560 end
adamc@29 561
adamc@29 562 | ERecord (i, xes) => box [string "({",
adamc@29 563 space,
adamc@29 564 string "struct",
adamc@29 565 space,
adamc@29 566 string ("__lws_" ^ Int.toString i),
adamc@29 567 space,
adamc@181 568 string "tmp",
adamc@29 569 space,
adamc@29 570 string "=",
adamc@29 571 space,
adamc@29 572 string "{",
adamc@29 573 p_list (fn (_, e) =>
adamc@29 574 p_exp env e) xes,
adamc@29 575 string "};",
adamc@29 576 space,
adamc@181 577 string "tmp;",
adamc@29 578 space,
adamc@29 579 string "})" ]
adamc@29 580 | EField (e, x) =>
adamc@29 581 box [p_exp' true env e,
adamc@182 582 string ".__lwf_",
adamc@29 583 string x]
adamc@29 584
adamc@182 585 | ECase (e, pes, {disc, result}) =>
adamc@182 586 let
adamc@182 587 val final = newGoto ()
adamc@182 588
adamc@182 589 val body = foldl (fn ((p, e), body) =>
adamc@182 590 let
adamc@182 591 val exit = newGoto ()
adamc@182 592 val (pr, _) = p_pat_preamble env p
adamc@182 593 val (p, env) = p_pat (env,
adamc@182 594 box [string "goto",
adamc@182 595 space,
adamc@182 596 exit,
adamc@182 597 string ";"],
adamc@182 598 0) p
adamc@182 599 in
adamc@182 600 box [body,
adamc@182 601 box [string "{",
adamc@182 602 newline,
adamc@182 603 pr,
adamc@182 604 newline,
adamc@182 605 p,
adamc@182 606 newline,
adamc@182 607 string "result",
adamc@182 608 space,
adamc@182 609 string "=",
adamc@182 610 space,
adamc@182 611 p_exp env e,
adamc@182 612 string ";",
adamc@182 613 newline,
adamc@182 614 string "goto",
adamc@182 615 space,
adamc@182 616 final,
adamc@182 617 string ";",
adamc@182 618 newline,
adamc@182 619 string "}"],
adamc@182 620 newline,
adamc@182 621 exit,
adamc@182 622 string ":",
adamc@182 623 newline]
adamc@182 624 end) (box []) pes
adamc@182 625 in
adamc@182 626 box [string "({",
adamc@182 627 newline,
adamc@182 628 p_typ env disc,
adamc@182 629 space,
adamc@182 630 string "disc0",
adamc@182 631 space,
adamc@182 632 string "=",
adamc@182 633 space,
adamc@182 634 p_exp env e,
adamc@182 635 string ";",
adamc@182 636 newline,
adamc@182 637 p_typ env result,
adamc@182 638 space,
adamc@182 639 string "result;",
adamc@182 640 newline,
adamc@182 641 body,
adamc@182 642 string "lw_error(ctx, FATAL, \"",
adamc@182 643 string (ErrorMsg.spanToString loc),
adamc@182 644 string ": pattern match failure\");",
adamc@182 645 newline,
adamc@182 646 final,
adamc@182 647 string ":",
adamc@182 648 space,
adamc@182 649 string "result;",
adamc@182 650 newline,
adamc@182 651 string "})"]
adamc@182 652 end
adamc@181 653
adamc@117 654 | EWrite e => box [string "(lw_write(ctx, ",
adamc@102 655 p_exp env e,
adamc@102 656 string "), lw_unit_v)"]
adamc@102 657
adamc@106 658 | ESeq (e1, e2) => box [string "(",
adamc@106 659 p_exp env e1,
adamc@106 660 string ",",
adamc@106 661 space,
adamc@106 662 p_exp env e2,
adamc@106 663 string ")"]
adamc@269 664 | ELet (x, t, e1, e2) => box [string "({",
adamc@269 665 newline,
adamc@269 666 p_typ env t,
adamc@269 667 space,
adamc@272 668 string "__lwr_",
adamc@272 669 string x,
adamc@272 670 string "_",
adamc@272 671 string (Int.toString (E.countERels env)),
adamc@269 672 space,
adamc@269 673 string "=",
adamc@269 674 space,
adamc@269 675 p_exp env e1,
adamc@269 676 string ";",
adamc@269 677 newline,
adamc@269 678 p_exp (E.pushERel env x t) e2,
adamc@269 679 string ";",
adamc@269 680 newline,
adamc@269 681 string "})"]
adamc@269 682
adamc@282 683 | EQuery {exps, tables, rnum, state, query, body, initial, prepared} =>
adamc@278 684 let
adamc@278 685 val exps = map (fn (x, t) => ("__lwf_" ^ x, t)) exps
adamc@278 686 val tables = ListUtil.mapConcat (fn (x, xts) =>
adamc@278 687 map (fn (x', t) => ("__lwf_" ^ x ^ ".__lwf_" ^ x', t)) xts)
adamc@278 688 tables
adamc@278 689
adamc@278 690 val outputs = exps @ tables
adamc@278 691 in
adamc@278 692 box [string "({",
adamc@278 693 newline,
adamc@278 694 string "PGconn *conn = lw_get_db(ctx);",
adamc@278 695 newline,
adamc@282 696 case prepared of
adamc@282 697 NONE => box [string "char *query = ",
adamc@282 698 p_exp env query,
adamc@282 699 string ";",
adamc@282 700 newline]
adamc@282 701 | SOME _ =>
adamc@282 702 let
adamc@282 703 val ets = getPargs query
adamc@282 704 in
adamc@282 705 box [p_list_sepi newline
adamc@282 706 (fn i => fn (e, t) =>
adamc@282 707 box [p_sql_type t,
adamc@282 708 space,
adamc@282 709 string "arg",
adamc@282 710 string (Int.toString (i + 1)),
adamc@282 711 space,
adamc@282 712 string "=",
adamc@282 713 space,
adamc@282 714 p_exp env e,
adamc@282 715 string ";"])
adamc@282 716 ets,
adamc@282 717 newline,
adamc@282 718 newline,
adamc@282 719
adamc@282 720 string "const char *paramValues[] = { ",
adamc@282 721 p_list_sepi (box [string ",", space])
adamc@282 722 (fn i => fn (_, t) => p_ensql t (box [string "arg",
adamc@282 723 string (Int.toString (i + 1))]))
adamc@282 724 ets,
adamc@282 725 string " };",
adamc@282 726 newline,
adamc@282 727 newline,
adamc@282 728
adamc@282 729 string "const int paramLengths[] = { ",
adamc@282 730 p_list_sepi (box [string ",", space])
adamc@282 731 (fn i => fn (_, t) => p_ensql_len t (box [string "arg",
adamc@282 732 string (Int.toString (i + 1))]))
adamc@282 733 ets,
adamc@282 734 string " };",
adamc@282 735 newline,
adamc@282 736 newline,
adamc@282 737
adamc@282 738 string "const static int paramFormats[] = { ",
adamc@282 739 p_list_sep (box [string ",", space]) (fn _ => string "1") ets,
adamc@282 740 string " };",
adamc@282 741 newline,
adamc@282 742 newline]
adamc@282 743 end,
adamc@278 744 string "int n, i;",
adamc@278 745 newline,
adamc@278 746 p_typ env state,
adamc@278 747 space,
adamc@278 748 string "acc",
adamc@278 749 space,
adamc@278 750 string "=",
adamc@278 751 space,
adamc@278 752 p_exp env initial,
adamc@278 753 string ";",
adamc@278 754 newline,
adamc@282 755 string "PGresult *res = ",
adamc@282 756 case prepared of
adamc@282 757 NONE => string "PQexecParams(conn, query, 0, NULL, NULL, NULL, NULL, 1);"
adamc@282 758 | SOME n => box [string "PQexecPrepared(conn, \"lw",
adamc@282 759 string (Int.toString n),
adamc@282 760 string "\", ",
adamc@282 761 string (Int.toString (length (getPargs query))),
adamc@282 762 string ", paramValues, paramLengths, paramFormats, 1);"],
adamc@278 763 newline,
adamc@278 764 newline,
adamc@277 765
adamc@278 766 string "if (res == NULL) lw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@278 767 newline,
adamc@278 768 newline,
adamc@277 769
adamc@278 770 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@278 771 newline,
adamc@278 772 box [string "PQclear(res);",
adamc@278 773 newline,
adamc@278 774 string "lw_error(ctx, FATAL, \"",
adamc@278 775 string (ErrorMsg.spanToString loc),
adamc@282 776 string ": Query failed:\\n%s\\n%s\", ",
adamc@282 777 case prepared of
adamc@282 778 NONE => string "query"
adamc@282 779 | SOME _ => p_exp env query,
adamc@282 780 string ", PQerrorMessage(conn));",
adamc@278 781 newline],
adamc@278 782 string "}",
adamc@278 783 newline,
adamc@278 784 newline,
adamc@277 785
adamc@278 786 string "n = PQntuples(res);",
adamc@278 787 newline,
adamc@278 788 string "for (i = 0; i < n; ++i) {",
adamc@278 789 newline,
adamc@278 790 box [string "struct",
adamc@278 791 space,
adamc@278 792 string "__lws_",
adamc@278 793 string (Int.toString rnum),
adamc@278 794 space,
adamc@278 795 string "__lwr_r_",
adamc@278 796 string (Int.toString (E.countERels env)),
adamc@278 797 string ";",
adamc@278 798 newline,
adamc@278 799 p_typ env state,
adamc@278 800 space,
adamc@278 801 string "__lwr_acc_",
adamc@278 802 string (Int.toString (E.countERels env + 1)),
adamc@278 803 space,
adamc@278 804 string "=",
adamc@278 805 space,
adamc@278 806 string "acc;",
adamc@278 807 newline,
adamc@278 808 newline,
adamc@278 809
adamc@278 810 p_list_sepi (box []) (fn i =>
adamc@278 811 fn (proj, t) =>
adamc@278 812 box [string "__lwr_r_",
adamc@278 813 string (Int.toString (E.countERels env)),
adamc@278 814 string ".",
adamc@278 815 string proj,
adamc@278 816 space,
adamc@278 817 string "=",
adamc@278 818 space,
adamc@278 819 p_unsql env t
adamc@278 820 (box [string "PQgetvalue(res, i, ",
adamc@278 821 string (Int.toString i),
adamc@278 822 string ")"]),
adamc@278 823 string ";",
adamc@278 824 newline]) outputs,
adamc@278 825
adamc@278 826 newline,
adamc@278 827 newline,
adamc@278 828
adamc@278 829 string "acc",
adamc@278 830 space,
adamc@278 831 string "=",
adamc@278 832 space,
adamc@278 833 p_exp (E.pushERel
adamc@278 834 (E.pushERel env "r" (TRecord rnum, loc))
adamc@278 835 "acc" state)
adamc@278 836 body,
adamc@278 837 string ";",
adamc@278 838 newline],
adamc@278 839 string "}",
adamc@278 840 newline,
adamc@278 841 newline,
adamc@278 842 string "PQclear(res);",
adamc@278 843 newline,
adamc@278 844 string "acc;",
adamc@278 845 newline,
adamc@278 846 string "})"]
adamc@278 847 end
adamc@106 848
adamc@29 849 and p_exp env = p_exp' false env
adamc@29 850
adamc@129 851 fun p_fun env (fx, n, args, ran, e) =
adamc@129 852 let
adamc@129 853 val nargs = length args
adamc@129 854 val env' = foldl (fn ((x, dom), env) => E.pushERel env x dom) env args
adamc@129 855 in
adamc@129 856 box [string "static",
adamc@129 857 space,
adamc@129 858 p_typ env ran,
adamc@129 859 space,
adamc@129 860 string ("__lwn_" ^ fx ^ "_" ^ Int.toString n),
adamc@129 861 string "(",
adamc@129 862 p_list_sep (box [string ",", space]) (fn x => x)
adamc@129 863 (string "lw_context ctx" :: ListUtil.mapi (fn (i, (_, dom)) =>
adamc@129 864 box [p_typ env dom,
adamc@129 865 space,
adamc@129 866 p_rel env' (nargs - i - 1)]) args),
adamc@129 867 string ")",
adamc@129 868 space,
adamc@129 869 string "{",
adamc@129 870 newline,
adamc@129 871 box[string "return(",
adamc@129 872 p_exp env' e,
adamc@129 873 string ");"],
adamc@129 874 newline,
adamc@129 875 string "}"]
adamc@129 876 end
adamc@129 877
adamc@129 878 fun p_decl env (dAll as (d, _) : decl) =
adamc@29 879 case d of
adamc@29 880 DStruct (n, xts) =>
adamc@196 881 let
adamc@196 882 val env = E.declBinds env dAll
adamc@196 883 in
adamc@196 884 box [string "struct",
adamc@196 885 space,
adamc@196 886 string ("__lws_" ^ Int.toString n),
adamc@196 887 space,
adamc@196 888 string "{",
adamc@196 889 newline,
adamc@196 890 p_list_sep (box []) (fn (x, t) => box [p_typ env t,
adamc@196 891 space,
adamc@196 892 string "__lwf_",
adamc@196 893 string x,
adamc@196 894 string ";",
adamc@196 895 newline]) xts,
adamc@196 896 string "};"]
adamc@196 897 end
adamc@188 898 | DDatatype (Enum, x, n, xncs) =>
adamc@188 899 box [string "enum",
adamc@188 900 space,
adamc@188 901 string ("__lwe_" ^ x ^ "_" ^ Int.toString n),
adamc@188 902 space,
adamc@188 903 string "{",
adamc@188 904 space,
adamc@188 905 p_list_sep (box [string ",", space]) (fn (x, n, _) => string ("__lwc_" ^ x ^ "_" ^ Int.toString n)) xncs,
adamc@188 906 space,
adamc@188 907 string "};"]
adamc@198 908 | DDatatype (Option, _, _, _) => box []
adamc@188 909 | DDatatype (Default, x, n, xncs) =>
adamc@165 910 let
adamc@165 911 val xncsArgs = List.mapPartial (fn (x, n, NONE) => NONE
adamc@165 912 | (x, n, SOME t) => SOME (x, n, t)) xncs
adamc@165 913 in
adamc@165 914 box [string "enum",
adamc@165 915 space,
adamc@165 916 string ("__lwe_" ^ x ^ "_" ^ Int.toString n),
adamc@165 917 space,
adamc@165 918 string "{",
adamc@165 919 space,
adamc@165 920 p_list_sep (box [string ",", space]) (fn (x, n, _) => string ("__lwc_" ^ x ^ "_" ^ Int.toString n)) xncs,
adamc@165 921 space,
adamc@165 922 string "};",
adamc@165 923 newline,
adamc@165 924 newline,
adamc@165 925 string "struct",
adamc@165 926 space,
adamc@167 927 string ("__lwd_" ^ x ^ "_" ^ Int.toString n),
adamc@165 928 space,
adamc@165 929 string "{",
adamc@165 930 newline,
adamc@165 931 string "enum",
adamc@165 932 space,
adamc@165 933 string ("__lwe_" ^ x ^ "_" ^ Int.toString n),
adamc@165 934 space,
adamc@165 935 string "tag;",
adamc@165 936 newline,
adamc@165 937 box (case xncsArgs of
adamc@165 938 [] => []
adamc@165 939 | _ => [string "union",
adamc@165 940 space,
adamc@165 941 string "{",
adamc@165 942 newline,
adamc@165 943 p_list_sep newline (fn (x, n, t) => box [p_typ env t,
adamc@165 944 space,
adamc@196 945 string ("lw_" ^ x),
adamc@165 946 string ";"]) xncsArgs,
adamc@165 947 newline,
adamc@165 948 string "}",
adamc@165 949 space,
adamc@165 950 string "data;",
adamc@165 951 newline]),
adamc@165 952 string "};"]
adamc@188 953 end
adamc@29 954
adamc@196 955 | DDatatypeForward _ => box []
adamc@196 956
adamc@29 957 | DVal (x, n, t, e) =>
adamc@29 958 box [p_typ env t,
adamc@29 959 space,
adamc@29 960 string ("__lwn_" ^ x ^ "_" ^ Int.toString n),
adamc@29 961 space,
adamc@29 962 string "=",
adamc@29 963 space,
adamc@29 964 p_exp env e,
adamc@29 965 string ";"]
adamc@129 966 | DFun vi => p_fun env vi
adamc@129 967 | DFunRec vis =>
adamc@29 968 let
adamc@129 969 val env = E.declBinds env dAll
adamc@29 970 in
adamc@129 971 box [p_list_sep newline (fn (fx, n, args, ran, _) =>
adamc@129 972 box [string "static",
adamc@129 973 space,
adamc@129 974 p_typ env ran,
adamc@129 975 space,
adamc@129 976 string ("__lwn_" ^ fx ^ "_" ^ Int.toString n),
adamc@129 977 string "(lw_context,",
adamc@129 978 space,
adamc@129 979 p_list_sep (box [string ",", space])
adamc@129 980 (fn (_, dom) => p_typ env dom) args,
adamc@129 981 string ");"]) vis,
adamc@29 982 newline,
adamc@129 983 p_list_sep newline (p_fun env) vis,
adamc@129 984 newline]
adamc@29 985 end
adamc@273 986 | DTable (x, _) => box [string "/* SQL table ",
adamc@273 987 string x,
adamc@273 988 string " */",
adamc@273 989 newline]
adamc@275 990 | DDatabase s => box [string "static void lw_db_validate(lw_context);",
adamc@272 991 newline,
adamc@282 992 string "static void lw_db_prepare(lw_context);",
adamc@282 993 newline,
adamc@275 994 newline,
adamc@275 995 string "void lw_db_init(lw_context ctx) {",
adamc@273 996 newline,
adamc@272 997 string "PGconn *conn = PQconnectdb(\"",
adamc@272 998 string (String.toString s),
adamc@272 999 string "\");",
adamc@272 1000 newline,
adamc@272 1001 string "if (conn == NULL) lw_error(ctx, BOUNDED_RETRY, ",
adamc@272 1002 string "\"libpq can't allocate a connection.\");",
adamc@272 1003 newline,
adamc@272 1004 string "if (PQstatus(conn) != CONNECTION_OK) {",
adamc@272 1005 newline,
adamc@272 1006 box [string "char msg[1024];",
adamc@272 1007 newline,
adamc@272 1008 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@272 1009 newline,
adamc@272 1010 string "msg[1023] = 0;",
adamc@272 1011 newline,
adamc@272 1012 string "PQfinish(conn);",
adamc@272 1013 newline,
adamc@272 1014 string "lw_error(ctx, BOUNDED_RETRY, ",
adamc@272 1015 string "\"Connection to Postgres server failed: %s\", msg);"],
adamc@272 1016 newline,
adamc@272 1017 string "}",
adamc@272 1018 newline,
adamc@272 1019 string "lw_set_db(ctx, conn);",
adamc@272 1020 newline,
adamc@275 1021 string "lw_db_validate(ctx);",
adamc@275 1022 newline,
adamc@282 1023 string "lw_db_prepare(ctx);",
adamc@282 1024 newline,
adamc@272 1025 string "}",
adamc@272 1026 newline,
adamc@272 1027 newline,
adamc@272 1028 string "void lw_db_close(lw_context ctx) {",
adamc@272 1029 newline,
adamc@272 1030 string "PQfinish(lw_get_db(ctx));",
adamc@272 1031 newline,
adamc@272 1032 string "}",
adamc@272 1033 newline]
adamc@29 1034
adamc@282 1035 | DPreparedStatements ss =>
adamc@282 1036 box [string "static void lw_db_prepare(lw_context ctx) {",
adamc@282 1037 newline,
adamc@282 1038 string "PGconn *conn = lw_get_db(ctx);",
adamc@282 1039 newline,
adamc@282 1040 string "PGresult *res;",
adamc@282 1041 newline,
adamc@282 1042 newline,
adamc@282 1043
adamc@282 1044 p_list_sepi newline (fn i => fn (s, n) =>
adamc@282 1045 box [string "res = PQprepare(conn, \"lw",
adamc@282 1046 string (Int.toString i),
adamc@282 1047 string "\", \"",
adamc@282 1048 string (String.toString s),
adamc@282 1049 string "\", ",
adamc@282 1050 string (Int.toString n),
adamc@282 1051 string ", NULL);",
adamc@282 1052 newline,
adamc@282 1053 string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@282 1054 newline,
adamc@282 1055 box [string "char msg[1024];",
adamc@282 1056 newline,
adamc@282 1057 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@282 1058 newline,
adamc@282 1059 string "msg[1023] = 0;",
adamc@282 1060 newline,
adamc@282 1061 string "PQclear(res);",
adamc@282 1062 newline,
adamc@282 1063 string "PQfinish(conn);",
adamc@282 1064 newline,
adamc@282 1065 string "lw_error(ctx, FATAL, \"Unable to create prepared statement:\\n",
adamc@282 1066 string (String.toString s),
adamc@282 1067 string "\\n%s\", msg);",
adamc@282 1068 newline],
adamc@282 1069 string "}",
adamc@282 1070 newline,
adamc@282 1071 string "PQclear(res);",
adamc@282 1072 newline])
adamc@282 1073 ss,
adamc@282 1074
adamc@282 1075 string "}"]
adamc@282 1076
adamc@144 1077 datatype 'a search =
adamc@144 1078 Found of 'a
adamc@144 1079 | NotFound
adamc@144 1080 | Error
adamc@120 1081
adamc@275 1082 fun p_sqltype' env (tAll as (t, loc)) =
adamc@275 1083 case t of
adamc@275 1084 TFfi ("Basis", "int") => "int8"
adamc@275 1085 | TFfi ("Basis", "float") => "float8"
adamc@275 1086 | TFfi ("Basis", "string") => "text"
adamc@275 1087 | TFfi ("Basis", "bool") => "bool"
adamc@275 1088 | _ => (ErrorMsg.errorAt loc "Don't know SQL equivalent of type";
adamc@275 1089 Print.eprefaces' [("Type", p_typ env tAll)];
adamc@275 1090 "ERROR")
adamc@275 1091
adamc@275 1092 fun p_sqltype env t = string (p_sqltype' env t)
adamc@101 1093
adamc@101 1094 fun p_file env (ds, ps) =
adamc@29 1095 let
adamc@101 1096 val (pds, env) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 1097 (p_decl env d,
adamc@31 1098 E.declBinds env d))
adamc@101 1099 env ds
adamc@144 1100
adamc@144 1101 val fields = foldl (fn ((ek, _, _, ts), fields) =>
adamc@144 1102 case ek of
adamc@144 1103 Core.Link => fields
adamc@144 1104 | Core.Action =>
adamc@280 1105 case List.nth (ts, length ts - 2) of
adamc@144 1106 (TRecord i, _) =>
adamc@144 1107 let
adamc@144 1108 val xts = E.lookupStruct env i
adamc@144 1109 val xtsSet = SS.addList (SS.empty, map #1 xts)
adamc@144 1110 in
adamc@144 1111 foldl (fn ((x, _), fields) =>
adamc@144 1112 let
adamc@144 1113 val xtsSet' = Option.getOpt (SM.find (fields, x), SS.empty)
adamc@144 1114 in
adamc@144 1115 SM.insert (fields, x, SS.union (SS.delete (xtsSet, x),
adamc@144 1116 xtsSet'))
adamc@144 1117 end) fields xts
adamc@144 1118 end
adamc@144 1119 | _ => raise Fail "CjrPrint: Last argument of action isn't record")
adamc@144 1120 SM.empty ps
adamc@144 1121
adamc@144 1122 val fnums = SM.foldli (fn (x, xs, fnums) =>
adamc@144 1123 let
adamc@144 1124 val unusable = SS.foldl (fn (x', unusable) =>
adamc@144 1125 case SM.find (fnums, x') of
adamc@144 1126 NONE => unusable
adamc@144 1127 | SOME n => IS.add (unusable, n))
adamc@144 1128 IS.empty xs
adamc@144 1129
adamc@144 1130 fun findAvailable n =
adamc@144 1131 if IS.member (unusable, n) then
adamc@144 1132 findAvailable (n + 1)
adamc@144 1133 else
adamc@144 1134 n
adamc@144 1135 in
adamc@144 1136 SM.insert (fnums, x, findAvailable 0)
adamc@144 1137 end)
adamc@144 1138 SM.empty fields
adamc@144 1139
adamc@144 1140 fun makeSwitch (fnums, i) =
adamc@144 1141 case SM.foldl (fn (n, NotFound) => Found n
adamc@144 1142 | (n, Error) => Error
adamc@144 1143 | (n, Found n') => if n = n' then
adamc@144 1144 Found n'
adamc@144 1145 else
adamc@144 1146 Error) NotFound fnums of
adamc@144 1147 NotFound => box [string "return",
adamc@144 1148 space,
adamc@144 1149 string "-1;"]
adamc@144 1150 | Found n => box [string "return",
adamc@144 1151 space,
adamc@144 1152 string (Int.toString n),
adamc@144 1153 string ";"]
adamc@144 1154 | Error =>
adamc@144 1155 let
adamc@144 1156 val cmap = SM.foldli (fn (x, n, cmap) =>
adamc@144 1157 let
adamc@144 1158 val ch = if i < size x then
adamc@144 1159 String.sub (x, i)
adamc@144 1160 else
adamc@144 1161 chr 0
adamc@144 1162
adamc@144 1163 val fnums = case CM.find (cmap, ch) of
adamc@144 1164 NONE => SM.empty
adamc@144 1165 | SOME fnums => fnums
adamc@144 1166 val fnums = SM.insert (fnums, x, n)
adamc@144 1167 in
adamc@144 1168 CM.insert (cmap, ch, fnums)
adamc@144 1169 end)
adamc@144 1170 CM.empty fnums
adamc@144 1171
adamc@144 1172 val cmap = CM.listItemsi cmap
adamc@144 1173 in
adamc@144 1174 case cmap of
adamc@144 1175 [(_, fnums)] =>
adamc@144 1176 box [string "if",
adamc@144 1177 space,
adamc@144 1178 string "(name[",
adamc@144 1179 string (Int.toString i),
adamc@144 1180 string "]",
adamc@144 1181 space,
adamc@144 1182 string "==",
adamc@144 1183 space,
adamc@144 1184 string "0)",
adamc@144 1185 space,
adamc@144 1186 string "return",
adamc@144 1187 space,
adamc@144 1188 string "-1;",
adamc@144 1189 newline,
adamc@144 1190 makeSwitch (fnums, i+1)]
adamc@144 1191 | _ =>
adamc@144 1192 box [string "switch",
adamc@144 1193 space,
adamc@144 1194 string "(name[",
adamc@144 1195 string (Int.toString i),
adamc@144 1196 string "])",
adamc@144 1197 space,
adamc@144 1198 string "{",
adamc@144 1199 newline,
adamc@144 1200 box (map (fn (ch, fnums) =>
adamc@144 1201 box [string "case",
adamc@144 1202 space,
adamc@144 1203 if ch = chr 0 then
adamc@144 1204 string "0:"
adamc@144 1205 else
adamc@144 1206 box [string "'",
adamc@144 1207 string (Char.toString ch),
adamc@144 1208 string "':"],
adamc@144 1209 newline,
adamc@144 1210 makeSwitch (fnums, i+1),
adamc@144 1211 newline]) cmap),
adamc@144 1212 string "default:",
adamc@144 1213 newline,
adamc@144 1214 string "return",
adamc@144 1215 space,
adamc@144 1216 string "-1;",
adamc@144 1217 newline,
adamc@144 1218 string "}"]
adamc@144 1219 end
adamc@144 1220
adamc@186 1221 fun capitalize s =
adamc@186 1222 if s = "" then
adamc@186 1223 ""
adamc@186 1224 else
adamc@186 1225 str (Char.toUpper (String.sub (s, 0))) ^ String.extract (s, 1, NONE)
adamc@186 1226
adamc@144 1227 fun unurlify (t, loc) =
adamc@144 1228 case t of
adamc@186 1229 TFfi (m, t) => string ("lw_" ^ m ^ "_unurlify" ^ capitalize t ^ "(ctx, &request)")
adamc@144 1230
adamc@144 1231 | TRecord 0 => string "lw_unit_v"
adamc@144 1232 | TRecord i =>
adamc@144 1233 let
adamc@144 1234 val xts = E.lookupStruct env i
adamc@144 1235 in
adamc@144 1236 box [string "({",
adamc@144 1237 newline,
adamc@144 1238 box (map (fn (x, t) =>
adamc@144 1239 box [p_typ env t,
adamc@144 1240 space,
adamc@144 1241 string x,
adamc@144 1242 space,
adamc@144 1243 string "=",
adamc@144 1244 space,
adamc@144 1245 unurlify t,
adamc@144 1246 string ";",
adamc@144 1247 newline]) xts),
adamc@144 1248 string "struct",
adamc@144 1249 space,
adamc@144 1250 string "__lws_",
adamc@144 1251 string (Int.toString i),
adamc@144 1252 space,
adamc@181 1253 string "tmp",
adamc@144 1254 space,
adamc@144 1255 string "=",
adamc@144 1256 space,
adamc@144 1257 string "{",
adamc@144 1258 space,
adamc@144 1259 p_list_sep (box [string ",", space]) (fn (x, _) => string x) xts,
adamc@144 1260 space,
adamc@144 1261 string "};",
adamc@144 1262 newline,
adamc@181 1263 string "tmp;",
adamc@144 1264 newline,
adamc@144 1265 string "})"]
adamc@144 1266 end
adamc@144 1267
adamc@188 1268 | TDatatype (Enum, i, _) =>
adamc@188 1269 let
adamc@188 1270 val (x, xncs) = E.lookupDatatype env i
adamc@188 1271
adamc@188 1272 fun doEm xncs =
adamc@188 1273 case xncs of
adamc@188 1274 [] => string ("(lw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), (enum __lwe_"
adamc@188 1275 ^ x ^ "_" ^ Int.toString i ^ ")0)")
adamc@188 1276 | (x', n, to) :: rest =>
adamc@188 1277 box [string "((!strncmp(request, \"",
adamc@188 1278 string x',
adamc@188 1279 string "\", ",
adamc@188 1280 string (Int.toString (size x')),
adamc@188 1281 string ") && (request[",
adamc@188 1282 string (Int.toString (size x')),
adamc@188 1283 string "] == 0 || request[",
adamc@188 1284 string (Int.toString (size x')),
adamc@188 1285 string ("] == '/')) ? __lwc_" ^ x' ^ "_" ^ Int.toString n),
adamc@188 1286 space,
adamc@188 1287 string ":",
adamc@188 1288 space,
adamc@188 1289 doEm rest,
adamc@188 1290 string ")"]
adamc@188 1291 in
adamc@188 1292 doEm xncs
adamc@188 1293 end
adamc@188 1294
adamc@198 1295 | TDatatype (Option, i, xncs) =>
adamc@198 1296 let
adamc@198 1297 val (x, _) = E.lookupDatatype env i
adamc@198 1298
adamc@198 1299 val (no_arg, has_arg, t) =
adamc@198 1300 case !xncs of
adamc@198 1301 [(no_arg, _, NONE), (has_arg, _, SOME t)] =>
adamc@198 1302 (no_arg, has_arg, t)
adamc@198 1303 | [(has_arg, _, SOME t), (no_arg, _, NONE)] =>
adamc@198 1304 (no_arg, has_arg, t)
adamc@198 1305 | _ => raise Fail "CjrPrint: unfooify misclassified Option datatype"
adamc@198 1306 in
adamc@198 1307 box [string "(request[0] == '/' ? ++request : request,",
adamc@198 1308 newline,
adamc@198 1309 string "((!strncmp(request, \"",
adamc@198 1310 string no_arg,
adamc@198 1311 string "\", ",
adamc@198 1312 string (Int.toString (size no_arg)),
adamc@198 1313 string ") && (request[",
adamc@198 1314 string (Int.toString (size no_arg)),
adamc@198 1315 string "] == 0 || request[",
adamc@198 1316 string (Int.toString (size no_arg)),
adamc@198 1317 string "] == '/')) ? (request",
adamc@198 1318 space,
adamc@198 1319 string "+=",
adamc@198 1320 space,
adamc@198 1321 string (Int.toString (size no_arg)),
adamc@198 1322 string ", NULL) : ((!strncmp(request, \"",
adamc@198 1323 string has_arg,
adamc@198 1324 string "\", ",
adamc@198 1325 string (Int.toString (size has_arg)),
adamc@198 1326 string ") && (request[",
adamc@198 1327 string (Int.toString (size has_arg)),
adamc@198 1328 string "] == 0 || request[",
adamc@198 1329 string (Int.toString (size has_arg)),
adamc@198 1330 string "] == '/')) ? (request",
adamc@198 1331 space,
adamc@198 1332 string "+=",
adamc@198 1333 space,
adamc@198 1334 string (Int.toString (size has_arg)),
adamc@200 1335 string ", (request[0] == '/' ? ++request : NULL), ",
adamc@200 1336 newline,
adamc@198 1337
adamc@198 1338 case #1 t of
adamc@198 1339 TDatatype _ => unurlify t
adamc@199 1340 | TFfi ("Basis", "string") => unurlify t
adamc@198 1341 | _ => box [string "({",
adamc@198 1342 newline,
adamc@198 1343 p_typ env t,
adamc@198 1344 space,
adamc@198 1345 string "*tmp",
adamc@198 1346 space,
adamc@198 1347 string "=",
adamc@198 1348 space,
adamc@198 1349 string "lw_malloc(ctx, sizeof(",
adamc@198 1350 p_typ env t,
adamc@198 1351 string "));",
adamc@198 1352 newline,
adamc@198 1353 string "*tmp",
adamc@198 1354 space,
adamc@198 1355 string "=",
adamc@198 1356 space,
adamc@198 1357 unurlify t,
adamc@198 1358 string ";",
adamc@198 1359 newline,
adamc@198 1360 string "tmp;",
adamc@198 1361 newline,
adamc@198 1362 string "})"],
adamc@198 1363 string ")",
adamc@198 1364 newline,
adamc@198 1365 string ":",
adamc@198 1366 space,
adamc@198 1367 string ("(lw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), NULL))))")]
adamc@198 1368 end
adamc@198 1369
adamc@188 1370 | TDatatype (Default, i, _) =>
adamc@166 1371 let
adamc@166 1372 val (x, xncs) = E.lookupDatatype env i
adamc@166 1373
adamc@166 1374 fun doEm xncs =
adamc@166 1375 case xncs of
adamc@167 1376 [] => string ("(lw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), NULL)")
adamc@167 1377 | (x', n, to) :: rest =>
adamc@167 1378 box [string "((!strncmp(request, \"",
adamc@167 1379 string x',
adamc@167 1380 string "\", ",
adamc@167 1381 string (Int.toString (size x')),
adamc@167 1382 string ") && (request[",
adamc@167 1383 string (Int.toString (size x')),
adamc@167 1384 string "] == 0 || request[",
adamc@167 1385 string (Int.toString (size x')),
adamc@167 1386 string "] == '/')) ? ({",
adamc@166 1387 newline,
adamc@167 1388 string "struct",
adamc@167 1389 space,
adamc@166 1390 string ("__lwd_" ^ x ^ "_" ^ Int.toString i),
adamc@166 1391 space,
adamc@181 1392 string "*tmp = lw_malloc(ctx, sizeof(struct __lwd_",
adamc@167 1393 string x,
adamc@167 1394 string "_",
adamc@167 1395 string (Int.toString i),
adamc@167 1396 string "));",
adamc@166 1397 newline,
adamc@181 1398 string "tmp->tag",
adamc@166 1399 space,
adamc@166 1400 string "=",
adamc@166 1401 space,
adamc@167 1402 string ("__lwc_" ^ x' ^ "_" ^ Int.toString n),
adamc@166 1403 string ";",
adamc@166 1404 newline,
adamc@166 1405 string "request",
adamc@166 1406 space,
adamc@166 1407 string "+=",
adamc@166 1408 space,
adamc@167 1409 string (Int.toString (size x')),
adamc@166 1410 string ";",
adamc@166 1411 newline,
adamc@200 1412 string "if (request[0] == '/') ++request;",
adamc@200 1413 newline,
adamc@166 1414 case to of
adamc@166 1415 NONE => box []
adamc@197 1416 | SOME t => box [string "tmp->data.lw_",
adamc@167 1417 string x',
adamc@166 1418 space,
adamc@166 1419 string "=",
adamc@166 1420 space,
adamc@166 1421 unurlify t,
adamc@166 1422 string ";",
adamc@166 1423 newline],
adamc@181 1424 string "tmp;",
adamc@166 1425 newline,
adamc@166 1426 string "})",
adamc@166 1427 space,
adamc@166 1428 string ":",
adamc@166 1429 space,
adamc@166 1430 doEm rest,
adamc@166 1431 string ")"]
adamc@166 1432 in
adamc@166 1433 doEm xncs
adamc@166 1434 end
adamc@166 1435
adamc@144 1436 | _ => (ErrorMsg.errorAt loc "Unable to choose a URL decoding function";
adamc@144 1437 space)
adamc@144 1438
adamc@144 1439
adamc@144 1440 fun p_page (ek, s, n, ts) =
adamc@144 1441 let
adamc@144 1442 val (ts, defInputs, inputsVar) =
adamc@144 1443 case ek of
adamc@144 1444 Core.Link => (ts, string "", string "")
adamc@144 1445 | Core.Action =>
adamc@280 1446 case List.nth (ts, length ts - 2) of
adamc@144 1447 (TRecord i, _) =>
adamc@144 1448 let
adamc@144 1449 val xts = E.lookupStruct env i
adamc@144 1450 in
adamc@280 1451 (List.take (ts, length ts - 2),
adamc@144 1452 box [box (map (fn (x, t) => box [p_typ env t,
adamc@144 1453 space,
adamc@144 1454 string "lw_input_",
adamc@144 1455 string x,
adamc@144 1456 string ";",
adamc@144 1457 newline]) xts),
adamc@144 1458 newline,
adamc@144 1459 box (map (fn (x, t) =>
adamc@144 1460 let
adamc@144 1461 val n = case SM.find (fnums, x) of
adamc@144 1462 NONE => raise Fail "CjrPrint: Can't find in fnums"
adamc@144 1463 | SOME n => n
adamc@190 1464
adamc@190 1465 val f = case t of
adamc@190 1466 (TFfi ("Basis", "bool"), _) => "optional_"
adamc@190 1467 | _ => ""
adamc@144 1468 in
adamc@190 1469 box [string "request = lw_get_",
adamc@190 1470 string f,
adamc@190 1471 string "input(ctx, ",
adamc@144 1472 string (Int.toString n),
adamc@144 1473 string ");",
adamc@144 1474 newline,
adamc@144 1475 string "if (request == NULL) {",
adamc@144 1476 newline,
adamc@144 1477 box [string "printf(\"Missing input ",
adamc@144 1478 string x,
adamc@144 1479 string "\\n\");",
adamc@144 1480 newline,
adamc@144 1481 string "exit(1);"],
adamc@144 1482 newline,
adamc@144 1483 string "}",
adamc@144 1484 newline,
adamc@144 1485 string "lw_input_",
adamc@144 1486 string x,
adamc@144 1487 space,
adamc@144 1488 string "=",
adamc@144 1489 space,
adamc@144 1490 unurlify t,
adamc@144 1491 string ";",
adamc@144 1492 newline]
adamc@144 1493 end) xts),
adamc@144 1494 string "struct __lws_",
adamc@144 1495 string (Int.toString i),
adamc@144 1496 space,
adamc@144 1497 string "lw_inputs",
adamc@144 1498 space,
adamc@144 1499 string "= {",
adamc@144 1500 newline,
adamc@144 1501 box (map (fn (x, _) => box [string "lw_input_",
adamc@144 1502 string x,
adamc@144 1503 string ",",
adamc@144 1504 newline]) xts),
adamc@144 1505 string "};",
adamc@144 1506 newline],
adamc@144 1507 box [string ",",
adamc@144 1508 space,
adamc@144 1509 string "lw_inputs"])
adamc@144 1510 end
adamc@144 1511
adamc@144 1512 | _ => raise Fail "CjrPrint: Last argument to an action isn't a record"
adamc@144 1513 in
adamc@144 1514 box [string "if (!strncmp(request, \"",
adamc@144 1515 string (String.toString s),
adamc@144 1516 string "\", ",
adamc@144 1517 string (Int.toString (size s)),
adamc@198 1518 string ") && (request[",
adamc@198 1519 string (Int.toString (size s)),
adamc@198 1520 string "] == 0 || request[",
adamc@198 1521 string (Int.toString (size s)),
adamc@198 1522 string "] == '/')) {",
adamc@144 1523 newline,
adamc@144 1524 string "request += ",
adamc@144 1525 string (Int.toString (size s)),
adamc@144 1526 string ";",
adamc@144 1527 newline,
adamc@144 1528 string "if (*request == '/') ++request;",
adamc@144 1529 newline,
adamc@144 1530 box [string "{",
adamc@144 1531 newline,
adamc@144 1532 box (ListUtil.mapi (fn (i, t) => box [p_typ env t,
adamc@144 1533 space,
adamc@144 1534 string "arg",
adamc@144 1535 string (Int.toString i),
adamc@144 1536 space,
adamc@144 1537 string "=",
adamc@144 1538 space,
adamc@144 1539 unurlify t,
adamc@144 1540 string ";",
adamc@144 1541 newline]) ts),
adamc@144 1542 defInputs,
adamc@144 1543 p_enamed env n,
adamc@144 1544 string "(",
adamc@144 1545 p_list_sep (box [string ",", space])
adamc@144 1546 (fn x => x)
adamc@272 1547 (string "ctx"
adamc@280 1548 :: ListUtil.mapi (fn (i, _) => string ("arg" ^ Int.toString i)) ts),
adamc@144 1549 inputsVar,
adamc@280 1550 string ", lw_unit_v);",
adamc@144 1551 newline,
adamc@144 1552 string "return;",
adamc@144 1553 newline,
adamc@144 1554 string "}",
adamc@144 1555 newline,
adamc@144 1556 string "}"]
adamc@144 1557 ]
adamc@144 1558 end
adamc@144 1559
adamc@144 1560 val pds' = map p_page ps
adamc@275 1561
adamc@275 1562 val tables = List.mapPartial (fn (DTable (s, xts), _) => SOME (s, xts)
adamc@275 1563 | _ => NONE) ds
adamc@275 1564
adamc@275 1565 val validate =
adamc@275 1566 box [string "static void lw_db_validate(lw_context ctx) {",
adamc@275 1567 newline,
adamc@275 1568 string "PGconn *conn = lw_get_db(ctx);",
adamc@275 1569 newline,
adamc@275 1570 string "PGresult *res;",
adamc@275 1571 newline,
adamc@275 1572 newline,
adamc@275 1573 p_list_sep newline
adamc@275 1574 (fn (s, xts) =>
adamc@275 1575 let
adamc@275 1576 val q = "SELECT COUNT(*) FROM pg_class WHERE relname = '"
adamc@275 1577 ^ s ^ "'"
adamc@275 1578
adamc@275 1579 val q' = String.concat ["SELECT COUNT(*) FROM pg_attribute WHERE attrelid = (SELECT oid FROM pg_class WHERE relname = '",
adamc@275 1580 s,
adamc@275 1581 "') AND (",
adamc@275 1582 String.concatWith " OR "
adamc@275 1583 (map (fn (x, t) =>
adamc@275 1584 String.concat ["(attname = 'lw_",
adamc@275 1585 CharVector.map
adamc@275 1586 Char.toLower x,
adamc@275 1587 "' AND atttypid = (SELECT oid FROM pg_type",
adamc@275 1588 " WHERE typname = '",
adamc@275 1589 p_sqltype' env t,
adamc@275 1590 "'))"]) xts),
adamc@275 1591 ")"]
adamc@275 1592
adamc@275 1593 val q'' = String.concat ["SELECT COUNT(*) FROM pg_attribute WHERE attrelid = (SELECT oid FROM pg_class WHERE relname = '",
adamc@275 1594 s,
adamc@275 1595 "') AND attnum >= 0"]
adamc@275 1596 in
adamc@275 1597 box [string "res = PQexec(conn, \"",
adamc@275 1598 string q,
adamc@275 1599 string "\");",
adamc@275 1600 newline,
adamc@275 1601 newline,
adamc@275 1602 string "if (res == NULL) {",
adamc@275 1603 newline,
adamc@275 1604 box [string "PQfinish(conn);",
adamc@275 1605 newline,
adamc@275 1606 string "lw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1607 newline],
adamc@275 1608 string "}",
adamc@275 1609 newline,
adamc@275 1610 newline,
adamc@275 1611 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1612 newline,
adamc@275 1613 box [string "char msg[1024];",
adamc@275 1614 newline,
adamc@275 1615 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1616 newline,
adamc@275 1617 string "msg[1023] = 0;",
adamc@275 1618 newline,
adamc@275 1619 string "PQclear(res);",
adamc@275 1620 newline,
adamc@275 1621 string "PQfinish(conn);",
adamc@275 1622 newline,
adamc@275 1623 string "lw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1624 string q,
adamc@275 1625 string "\\n%s\", msg);",
adamc@275 1626 newline],
adamc@275 1627 string "}",
adamc@275 1628 newline,
adamc@275 1629 newline,
adamc@275 1630 string "if (strcmp(PQgetvalue(res, 0, 0), \"1\")) {",
adamc@275 1631 newline,
adamc@275 1632 box [string "PQclear(res);",
adamc@275 1633 newline,
adamc@275 1634 string "PQfinish(conn);",
adamc@275 1635 newline,
adamc@275 1636 string "lw_error(ctx, FATAL, \"Table '",
adamc@275 1637 string s,
adamc@275 1638 string "' does not exist.\");",
adamc@275 1639 newline],
adamc@275 1640 string "}",
adamc@275 1641 newline,
adamc@275 1642 newline,
adamc@275 1643 string "PQclear(res);",
adamc@275 1644 newline,
adamc@275 1645
adamc@275 1646 string "res = PQexec(conn, \"",
adamc@275 1647 string q',
adamc@275 1648 string "\");",
adamc@275 1649 newline,
adamc@275 1650 newline,
adamc@275 1651 string "if (res == NULL) {",
adamc@275 1652 newline,
adamc@275 1653 box [string "PQfinish(conn);",
adamc@275 1654 newline,
adamc@275 1655 string "lw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1656 newline],
adamc@275 1657 string "}",
adamc@275 1658 newline,
adamc@275 1659 newline,
adamc@275 1660 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1661 newline,
adamc@275 1662 box [string "char msg[1024];",
adamc@275 1663 newline,
adamc@275 1664 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1665 newline,
adamc@275 1666 string "msg[1023] = 0;",
adamc@275 1667 newline,
adamc@275 1668 string "PQclear(res);",
adamc@275 1669 newline,
adamc@275 1670 string "PQfinish(conn);",
adamc@275 1671 newline,
adamc@275 1672 string "lw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1673 string q',
adamc@275 1674 string "\\n%s\", msg);",
adamc@275 1675 newline],
adamc@275 1676 string "}",
adamc@275 1677 newline,
adamc@275 1678 newline,
adamc@275 1679 string "if (strcmp(PQgetvalue(res, 0, 0), \"",
adamc@275 1680 string (Int.toString (length xts)),
adamc@275 1681 string "\")) {",
adamc@275 1682 newline,
adamc@275 1683 box [string "PQclear(res);",
adamc@275 1684 newline,
adamc@275 1685 string "PQfinish(conn);",
adamc@275 1686 newline,
adamc@275 1687 string "lw_error(ctx, FATAL, \"Table '",
adamc@275 1688 string s,
adamc@275 1689 string "' has the wrong column types.\");",
adamc@275 1690 newline],
adamc@275 1691 string "}",
adamc@275 1692 newline,
adamc@275 1693 newline,
adamc@275 1694 string "PQclear(res);",
adamc@275 1695 newline,
adamc@275 1696 newline,
adamc@275 1697
adamc@275 1698 string "res = PQexec(conn, \"",
adamc@275 1699 string q'',
adamc@275 1700 string "\");",
adamc@275 1701 newline,
adamc@275 1702 newline,
adamc@275 1703 string "if (res == NULL) {",
adamc@275 1704 newline,
adamc@275 1705 box [string "PQfinish(conn);",
adamc@275 1706 newline,
adamc@275 1707 string "lw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1708 newline],
adamc@275 1709 string "}",
adamc@275 1710 newline,
adamc@275 1711 newline,
adamc@275 1712 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1713 newline,
adamc@275 1714 box [string "char msg[1024];",
adamc@275 1715 newline,
adamc@275 1716 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1717 newline,
adamc@275 1718 string "msg[1023] = 0;",
adamc@275 1719 newline,
adamc@275 1720 string "PQclear(res);",
adamc@275 1721 newline,
adamc@275 1722 string "PQfinish(conn);",
adamc@275 1723 newline,
adamc@275 1724 string "lw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1725 string q'',
adamc@275 1726 string "\\n%s\", msg);",
adamc@275 1727 newline],
adamc@275 1728 string "}",
adamc@275 1729 newline,
adamc@275 1730 newline,
adamc@275 1731 string "if (strcmp(PQgetvalue(res, 0, 0), \"",
adamc@275 1732 string (Int.toString (length xts)),
adamc@275 1733 string "\")) {",
adamc@275 1734 newline,
adamc@275 1735 box [string "PQclear(res);",
adamc@275 1736 newline,
adamc@275 1737 string "PQfinish(conn);",
adamc@275 1738 newline,
adamc@275 1739 string "lw_error(ctx, FATAL, \"Table '",
adamc@275 1740 string s,
adamc@275 1741 string "' has extra columns.\");",
adamc@275 1742 newline],
adamc@275 1743 string "}",
adamc@275 1744 newline,
adamc@275 1745 newline,
adamc@275 1746 string "PQclear(res);",
adamc@275 1747 newline]
adamc@275 1748 end) tables,
adamc@275 1749 string "}"]
adamc@29 1750 in
adamc@144 1751 box [string "#include <stdio.h>",
adamc@144 1752 newline,
adamc@144 1753 string "#include <stdlib.h>",
adamc@144 1754 newline,
adamc@272 1755 string "#include <string.h>",
adamc@272 1756 newline,
adamc@272 1757 string "#include <postgresql/libpq-fe.h>",
adamc@272 1758 newline,
adamc@144 1759 newline,
adamc@244 1760 string "#include \"urweb.h\"",
adamc@101 1761 newline,
adamc@101 1762 newline,
adamc@101 1763 p_list_sep newline (fn x => x) pds,
adamc@101 1764 newline,
adamc@144 1765 string "int lw_inputs_len = ",
adamc@144 1766 string (Int.toString (SM.foldl Int.max 0 fnums + 1)),
adamc@144 1767 string ";",
adamc@144 1768 newline,
adamc@144 1769 newline,
adamc@144 1770 string "int lw_input_num(char *name) {",
adamc@144 1771 newline,
adamc@144 1772 makeSwitch (fnums, 0),
adamc@144 1773 string "}",
adamc@144 1774 newline,
adamc@144 1775 newline,
adamc@117 1776 string "void lw_handle(lw_context ctx, char *request) {",
adamc@101 1777 newline,
adamc@101 1778 p_list_sep newline (fn x => x) pds',
adamc@101 1779 newline,
adamc@101 1780 string "}",
adamc@275 1781 newline,
adamc@275 1782 newline,
adamc@275 1783 validate,
adamc@101 1784 newline]
adamc@29 1785 end
adamc@29 1786
adamc@274 1787 fun p_sql env (ds, _) =
adamc@274 1788 let
adamc@274 1789 val (pps, _) = ListUtil.foldlMap
adamc@274 1790 (fn (dAll as (d, _), env) =>
adamc@274 1791 let
adamc@274 1792 val pp = case d of
adamc@274 1793 DTable (s, xts) =>
adamc@274 1794 box [string "CREATE TABLE ",
adamc@274 1795 string s,
adamc@274 1796 string "(",
adamc@274 1797 p_list (fn (x, t) =>
adamc@274 1798 box [string "lw_",
adamc@275 1799 string (CharVector.map Char.toLower x),
adamc@274 1800 space,
adamc@274 1801 p_sqltype env t,
adamc@274 1802 space,
adamc@274 1803 string "NOT",
adamc@274 1804 space,
adamc@274 1805 string "NULL"]) xts,
adamc@274 1806 string ");",
adamc@274 1807 newline,
adamc@274 1808 newline]
adamc@274 1809 | _ => box []
adamc@274 1810 in
adamc@274 1811 (pp, E.declBinds env dAll)
adamc@274 1812 end)
adamc@274 1813 env ds
adamc@274 1814 in
adamc@274 1815 box pps
adamc@274 1816 end
adamc@274 1817
adamc@29 1818 end