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annotate src/cjr_print.sml @ 307:52d4c60518d4

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First INSERT works
author Adam Chlipala <adamc@hcoop.net>
date Sun, 07 Sep 2008 15:05:52 -0400
parents 59dc042629b9
children 9ad92047a499
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@295 393 TFfi ("Basis", "int") => box [string "lw_Basis_stringToInt_error(ctx, ", e, string ")"]
adamc@295 394 | TFfi ("Basis", "float") => box [string "lw_Basis_stringToFloat_error(ctx, ", e, string ")"]
adamc@278 395 | TFfi ("Basis", "string") => box [string "lw_Basis_strdup(ctx, ", e, string ")"]
adamc@295 396 | TFfi ("Basis", "bool") => box [string "lw_Basis_stringToBool_error(ctx, ", e, string ")"]
adamc@278 397 | _ => (ErrorMsg.errorAt loc "Don't know how to unmarshal type from SQL";
adamc@278 398 Print.eprefaces' [("Type", p_typ env tAll)];
adamc@278 399 string "ERROR")
adamc@278 400
adamc@282 401 datatype sql_type =
adamc@282 402 Int
adamc@282 403 | Float
adamc@282 404 | String
adamc@282 405 | Bool
adamc@282 406
adamc@282 407 fun p_sql_type t =
adamc@282 408 string (case t of
adamc@282 409 Int => "lw_Basis_int"
adamc@282 410 | Float => "lw_Basis_float"
adamc@282 411 | String => "lw_Basis_string"
adamc@282 412 | Bool => "lw_Basis_bool")
adamc@282 413
adamc@282 414 fun getPargs (e, _) =
adamc@282 415 case e of
adamc@282 416 EPrim (Prim.String _) => []
adamc@282 417 | EFfiApp ("Basis", "strcat", [e1, e2]) => getPargs e1 @ getPargs e2
adamc@282 418
adamc@282 419 | EFfiApp ("Basis", "sqlifyInt", [e]) => [(e, Int)]
adamc@282 420 | EFfiApp ("Basis", "sqlifyFloat", [e]) => [(e, Float)]
adamc@282 421 | EFfiApp ("Basis", "sqlifyString", [e]) => [(e, String)]
adamc@282 422 | EFfiApp ("Basis", "sqlifyBool", [e]) => [(e, Bool)]
adamc@282 423
adamc@282 424 | _ => raise Fail "CjrPrint: getPargs"
adamc@282 425
adamc@282 426 fun p_ensql t e =
adamc@282 427 case t of
adamc@295 428 Int => box [string "lw_Basis_attrifyInt(ctx, ", e, string ")"]
adamc@295 429 | Float => box [string "lw_Basis_attrifyFloat(ctx, ", e, string ")"]
adamc@282 430 | String => e
adamc@295 431 | Bool => box [string "(", e, string " ? \"TRUE\" : \"FALSE\")"]
adamc@282 432
adamc@282 433 fun p_ensql_len t e =
adamc@282 434 case t of
adamc@282 435 Int => string "sizeof(lw_Basis_int)"
adamc@282 436 | Float => string "sizeof(lw_Basis_float)"
adamc@282 437 | String => box [string "strlen(", e, string ")"]
adamc@282 438 | Bool => string "sizeof(lw_Basis_bool)"
adamc@282 439
adamc@182 440 fun p_exp' par env (e, loc) =
adamc@29 441 case e of
adamc@276 442 EPrim p => Prim.p_t_GCC p
adamc@29 443 | ERel n => p_rel env n
adamc@109 444 | ENamed n => p_enamed env n
adamc@188 445 | ECon (Enum, pc, _) => p_patCon env pc
adamc@198 446 | ECon (Option, pc, NONE) => string "NULL"
adamc@198 447 | ECon (Option, pc, SOME e) =>
adamc@198 448 let
adamc@198 449 val to = case pc of
adamc@198 450 PConVar n => #2 (E.lookupConstructor env n)
adamc@198 451 | PConFfi {arg, ...} => arg
adamc@198 452
adamc@198 453 val t = case to of
adamc@198 454 NONE => raise Fail "CjrPrint: ECon argument status mismatch"
adamc@198 455 | SOME t => t
adamc@198 456 in
adamc@198 457 case #1 t of
adamc@198 458 TDatatype _ => p_exp' par env e
adamc@199 459 | TFfi ("Basis", "string") => p_exp' par env e
adamc@198 460 | _ => box [string "({",
adamc@198 461 newline,
adamc@198 462 p_typ env t,
adamc@198 463 space,
adamc@198 464 string "*tmp",
adamc@198 465 space,
adamc@198 466 string "=",
adamc@198 467 space,
adamc@198 468 string "lw_malloc(ctx, sizeof(",
adamc@198 469 p_typ env t,
adamc@198 470 string "));",
adamc@198 471 newline,
adamc@198 472 string "*tmp",
adamc@198 473 space,
adamc@198 474 string "=",
adamc@198 475 p_exp' par env e,
adamc@198 476 string ";",
adamc@198 477 newline,
adamc@198 478 string "tmp;",
adamc@198 479 newline,
adamc@198 480 string "})"]
adamc@198 481 end
adamc@188 482 | ECon (Default, pc, eo) =>
adamc@181 483 let
adamc@196 484 val (xd, xc, xn) = patConInfo env pc
adamc@181 485 in
adamc@182 486 box [string "({",
adamc@181 487 newline,
adamc@181 488 string "struct",
adamc@181 489 space,
adamc@185 490 string xd,
adamc@181 491 space,
adamc@181 492 string "*tmp",
adamc@181 493 space,
adamc@181 494 string "=",
adamc@181 495 space,
adamc@185 496 string "lw_malloc(ctx, sizeof(struct ",
adamc@185 497 string xd,
adamc@181 498 string "));",
adamc@181 499 newline,
adamc@181 500 string "tmp->tag",
adamc@181 501 space,
adamc@181 502 string "=",
adamc@181 503 space,
adamc@185 504 string xc,
adamc@181 505 string ";",
adamc@181 506 newline,
adamc@181 507 case eo of
adamc@181 508 NONE => box []
adamc@185 509 | SOME e => box [string "tmp->data.",
adamc@196 510 string xn,
adamc@181 511 space,
adamc@181 512 string "=",
adamc@181 513 space,
adamc@181 514 p_exp env e,
adamc@181 515 string ";",
adamc@181 516 newline],
adamc@181 517 string "tmp;",
adamc@181 518 newline,
adamc@181 519 string "})"]
adamc@181 520 end
adamc@297 521 | ENone _ => string "NULL"
adamc@290 522 | ESome (t, e) =>
adamc@290 523 (case #1 t of
adamc@290 524 TDatatype _ => p_exp' par env e
adamc@290 525 | TFfi ("Basis", "string") => p_exp' par env e
adamc@290 526 | _ => box [string "({",
adamc@290 527 newline,
adamc@290 528 p_typ env t,
adamc@290 529 space,
adamc@290 530 string "*tmp",
adamc@290 531 space,
adamc@290 532 string "=",
adamc@290 533 space,
adamc@290 534 string "lw_malloc(ctx, sizeof(",
adamc@290 535 p_typ env t,
adamc@290 536 string "));",
adamc@290 537 newline,
adamc@290 538 string "*tmp",
adamc@290 539 space,
adamc@290 540 string "=",
adamc@290 541 p_exp' par env e,
adamc@290 542 string ";",
adamc@290 543 newline,
adamc@290 544 string "tmp;",
adamc@290 545 newline,
adamc@290 546 string "})"])
adamc@109 547
adamc@53 548 | EFfi (m, x) => box [string "lw_", string m, string "_", string x]
adamc@283 549 | EError (e, t) =>
adamc@283 550 box [string "({",
adamc@283 551 newline,
adamc@283 552 p_typ env t,
adamc@283 553 space,
adamc@283 554 string "tmp;",
adamc@283 555 newline,
adamc@292 556 string "lw_error(ctx, FATAL, \"",
adamc@292 557 string (ErrorMsg.spanToString loc),
adamc@292 558 string ": %s\", ",
adamc@283 559 p_exp env e,
adamc@283 560 string ");",
adamc@283 561 newline,
adamc@283 562 string "tmp;",
adamc@283 563 newline,
adamc@283 564 string "})"]
adamc@53 565 | EFfiApp (m, x, es) => box [string "lw_",
adamc@53 566 string m,
adamc@53 567 string "_",
adamc@53 568 string x,
adamc@117 569 string "(ctx, ",
adamc@53 570 p_list (p_exp env) es,
adamc@53 571 string ")"]
adamc@129 572 | EApp (e1, e2) =>
adamc@129 573 let
adamc@129 574 fun unravel (f, acc) =
adamc@129 575 case #1 f of
adamc@129 576 EApp (f', arg) => unravel (f', arg :: acc)
adamc@129 577 | _ => (f, acc)
adamc@129 578
adamc@129 579 val (f, args) = unravel (e1, [e2])
adamc@129 580 in
adamc@129 581 parenIf par (box [p_exp' true env e1,
adamc@129 582 string "(ctx,",
adamc@129 583 space,
adamc@129 584 p_list_sep (box [string ",", space]) (p_exp env) args,
adamc@129 585 string ")"])
adamc@129 586 end
adamc@29 587
adamc@29 588 | ERecord (i, xes) => box [string "({",
adamc@29 589 space,
adamc@29 590 string "struct",
adamc@29 591 space,
adamc@29 592 string ("__lws_" ^ Int.toString i),
adamc@29 593 space,
adamc@181 594 string "tmp",
adamc@29 595 space,
adamc@29 596 string "=",
adamc@29 597 space,
adamc@29 598 string "{",
adamc@29 599 p_list (fn (_, e) =>
adamc@29 600 p_exp env e) xes,
adamc@29 601 string "};",
adamc@29 602 space,
adamc@181 603 string "tmp;",
adamc@29 604 space,
adamc@29 605 string "})" ]
adamc@29 606 | EField (e, x) =>
adamc@29 607 box [p_exp' true env e,
adamc@182 608 string ".__lwf_",
adamc@29 609 string x]
adamc@29 610
adamc@182 611 | ECase (e, pes, {disc, result}) =>
adamc@182 612 let
adamc@182 613 val final = newGoto ()
adamc@182 614
adamc@182 615 val body = foldl (fn ((p, e), body) =>
adamc@182 616 let
adamc@182 617 val exit = newGoto ()
adamc@182 618 val (pr, _) = p_pat_preamble env p
adamc@182 619 val (p, env) = p_pat (env,
adamc@182 620 box [string "goto",
adamc@182 621 space,
adamc@182 622 exit,
adamc@182 623 string ";"],
adamc@182 624 0) p
adamc@182 625 in
adamc@182 626 box [body,
adamc@182 627 box [string "{",
adamc@182 628 newline,
adamc@182 629 pr,
adamc@182 630 newline,
adamc@182 631 p,
adamc@182 632 newline,
adamc@182 633 string "result",
adamc@182 634 space,
adamc@182 635 string "=",
adamc@182 636 space,
adamc@182 637 p_exp env e,
adamc@182 638 string ";",
adamc@182 639 newline,
adamc@182 640 string "goto",
adamc@182 641 space,
adamc@182 642 final,
adamc@182 643 string ";",
adamc@182 644 newline,
adamc@182 645 string "}"],
adamc@182 646 newline,
adamc@182 647 exit,
adamc@182 648 string ":",
adamc@182 649 newline]
adamc@182 650 end) (box []) pes
adamc@182 651 in
adamc@182 652 box [string "({",
adamc@182 653 newline,
adamc@182 654 p_typ env disc,
adamc@182 655 space,
adamc@182 656 string "disc0",
adamc@182 657 space,
adamc@182 658 string "=",
adamc@182 659 space,
adamc@182 660 p_exp env e,
adamc@182 661 string ";",
adamc@182 662 newline,
adamc@182 663 p_typ env result,
adamc@182 664 space,
adamc@182 665 string "result;",
adamc@182 666 newline,
adamc@182 667 body,
adamc@182 668 string "lw_error(ctx, FATAL, \"",
adamc@182 669 string (ErrorMsg.spanToString loc),
adamc@182 670 string ": pattern match failure\");",
adamc@182 671 newline,
adamc@182 672 final,
adamc@182 673 string ":",
adamc@182 674 space,
adamc@182 675 string "result;",
adamc@182 676 newline,
adamc@182 677 string "})"]
adamc@182 678 end
adamc@181 679
adamc@117 680 | EWrite e => box [string "(lw_write(ctx, ",
adamc@102 681 p_exp env e,
adamc@102 682 string "), lw_unit_v)"]
adamc@102 683
adamc@106 684 | ESeq (e1, e2) => box [string "(",
adamc@106 685 p_exp env e1,
adamc@106 686 string ",",
adamc@106 687 space,
adamc@106 688 p_exp env e2,
adamc@106 689 string ")"]
adamc@269 690 | ELet (x, t, e1, e2) => box [string "({",
adamc@269 691 newline,
adamc@269 692 p_typ env t,
adamc@269 693 space,
adamc@272 694 string "__lwr_",
adamc@272 695 string x,
adamc@272 696 string "_",
adamc@272 697 string (Int.toString (E.countERels env)),
adamc@269 698 space,
adamc@269 699 string "=",
adamc@269 700 space,
adamc@269 701 p_exp env e1,
adamc@269 702 string ";",
adamc@269 703 newline,
adamc@269 704 p_exp (E.pushERel env x t) e2,
adamc@269 705 string ";",
adamc@269 706 newline,
adamc@269 707 string "})"]
adamc@269 708
adamc@282 709 | EQuery {exps, tables, rnum, state, query, body, initial, prepared} =>
adamc@278 710 let
adamc@278 711 val exps = map (fn (x, t) => ("__lwf_" ^ x, t)) exps
adamc@278 712 val tables = ListUtil.mapConcat (fn (x, xts) =>
adamc@278 713 map (fn (x', t) => ("__lwf_" ^ x ^ ".__lwf_" ^ x', t)) xts)
adamc@278 714 tables
adamc@278 715
adamc@278 716 val outputs = exps @ tables
adamc@278 717 in
adamc@278 718 box [string "({",
adamc@278 719 newline,
adamc@278 720 string "PGconn *conn = lw_get_db(ctx);",
adamc@278 721 newline,
adamc@282 722 case prepared of
adamc@282 723 NONE => box [string "char *query = ",
adamc@282 724 p_exp env query,
adamc@282 725 string ";",
adamc@282 726 newline]
adamc@282 727 | SOME _ =>
adamc@282 728 let
adamc@282 729 val ets = getPargs query
adamc@282 730 in
adamc@282 731 box [p_list_sepi newline
adamc@282 732 (fn i => fn (e, t) =>
adamc@282 733 box [p_sql_type t,
adamc@282 734 space,
adamc@282 735 string "arg",
adamc@282 736 string (Int.toString (i + 1)),
adamc@282 737 space,
adamc@282 738 string "=",
adamc@282 739 space,
adamc@282 740 p_exp env e,
adamc@282 741 string ";"])
adamc@282 742 ets,
adamc@282 743 newline,
adamc@282 744 newline,
adamc@282 745
adamc@282 746 string "const char *paramValues[] = { ",
adamc@282 747 p_list_sepi (box [string ",", space])
adamc@282 748 (fn i => fn (_, t) => p_ensql t (box [string "arg",
adamc@282 749 string (Int.toString (i + 1))]))
adamc@282 750 ets,
adamc@282 751 string " };",
adamc@282 752 newline,
adamc@282 753 newline]
adamc@282 754 end,
adamc@278 755 string "int n, i;",
adamc@278 756 newline,
adamc@278 757 p_typ env state,
adamc@278 758 space,
adamc@278 759 string "acc",
adamc@278 760 space,
adamc@278 761 string "=",
adamc@278 762 space,
adamc@278 763 p_exp env initial,
adamc@278 764 string ";",
adamc@278 765 newline,
adamc@282 766 string "PGresult *res = ",
adamc@282 767 case prepared of
adamc@295 768 NONE => string "PQexecParams(conn, query, 0, NULL, NULL, NULL, NULL, 0);"
adamc@282 769 | SOME n => box [string "PQexecPrepared(conn, \"lw",
adamc@282 770 string (Int.toString n),
adamc@282 771 string "\", ",
adamc@282 772 string (Int.toString (length (getPargs query))),
adamc@295 773 string ", paramValues, NULL, NULL, 0);"],
adamc@278 774 newline,
adamc@278 775 newline,
adamc@277 776
adamc@278 777 string "if (res == NULL) lw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@278 778 newline,
adamc@278 779 newline,
adamc@277 780
adamc@278 781 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@278 782 newline,
adamc@278 783 box [string "PQclear(res);",
adamc@278 784 newline,
adamc@278 785 string "lw_error(ctx, FATAL, \"",
adamc@278 786 string (ErrorMsg.spanToString loc),
adamc@282 787 string ": Query failed:\\n%s\\n%s\", ",
adamc@282 788 case prepared of
adamc@282 789 NONE => string "query"
adamc@282 790 | SOME _ => p_exp env query,
adamc@282 791 string ", PQerrorMessage(conn));",
adamc@278 792 newline],
adamc@278 793 string "}",
adamc@278 794 newline,
adamc@278 795 newline,
adamc@277 796
adamc@278 797 string "n = PQntuples(res);",
adamc@278 798 newline,
adamc@278 799 string "for (i = 0; i < n; ++i) {",
adamc@278 800 newline,
adamc@278 801 box [string "struct",
adamc@278 802 space,
adamc@278 803 string "__lws_",
adamc@278 804 string (Int.toString rnum),
adamc@278 805 space,
adamc@278 806 string "__lwr_r_",
adamc@278 807 string (Int.toString (E.countERels env)),
adamc@278 808 string ";",
adamc@278 809 newline,
adamc@278 810 p_typ env state,
adamc@278 811 space,
adamc@278 812 string "__lwr_acc_",
adamc@278 813 string (Int.toString (E.countERels env + 1)),
adamc@278 814 space,
adamc@278 815 string "=",
adamc@278 816 space,
adamc@278 817 string "acc;",
adamc@278 818 newline,
adamc@278 819 newline,
adamc@278 820
adamc@278 821 p_list_sepi (box []) (fn i =>
adamc@278 822 fn (proj, t) =>
adamc@278 823 box [string "__lwr_r_",
adamc@278 824 string (Int.toString (E.countERels env)),
adamc@278 825 string ".",
adamc@278 826 string proj,
adamc@278 827 space,
adamc@278 828 string "=",
adamc@278 829 space,
adamc@278 830 p_unsql env t
adamc@278 831 (box [string "PQgetvalue(res, i, ",
adamc@278 832 string (Int.toString i),
adamc@278 833 string ")"]),
adamc@278 834 string ";",
adamc@278 835 newline]) outputs,
adamc@278 836
adamc@278 837 newline,
adamc@278 838 newline,
adamc@278 839
adamc@278 840 string "acc",
adamc@278 841 space,
adamc@278 842 string "=",
adamc@278 843 space,
adamc@278 844 p_exp (E.pushERel
adamc@278 845 (E.pushERel env "r" (TRecord rnum, loc))
adamc@278 846 "acc" state)
adamc@278 847 body,
adamc@278 848 string ";",
adamc@278 849 newline],
adamc@278 850 string "}",
adamc@278 851 newline,
adamc@278 852 newline,
adamc@278 853 string "PQclear(res);",
adamc@278 854 newline,
adamc@278 855 string "acc;",
adamc@278 856 newline,
adamc@278 857 string "})"]
adamc@278 858 end
adamc@106 859
adamc@307 860 | EDml {dml, prepared} =>
adamc@307 861 box [string "({",
adamc@307 862 newline,
adamc@307 863 string "PGconn *conn = lw_get_db(ctx);",
adamc@307 864 newline,
adamc@307 865 case prepared of
adamc@307 866 NONE => box [string "char *dml = ",
adamc@307 867 p_exp env dml,
adamc@307 868 string ";",
adamc@307 869 newline]
adamc@307 870 | SOME _ =>
adamc@307 871 let
adamc@307 872 val ets = getPargs dml
adamc@307 873 in
adamc@307 874 box [p_list_sepi newline
adamc@307 875 (fn i => fn (e, t) =>
adamc@307 876 box [p_sql_type t,
adamc@307 877 space,
adamc@307 878 string "arg",
adamc@307 879 string (Int.toString (i + 1)),
adamc@307 880 space,
adamc@307 881 string "=",
adamc@307 882 space,
adamc@307 883 p_exp env e,
adamc@307 884 string ";"])
adamc@307 885 ets,
adamc@307 886 newline,
adamc@307 887 newline,
adamc@307 888
adamc@307 889 string "const char *paramValues[] = { ",
adamc@307 890 p_list_sepi (box [string ",", space])
adamc@307 891 (fn i => fn (_, t) => p_ensql t (box [string "arg",
adamc@307 892 string (Int.toString (i + 1))]))
adamc@307 893 ets,
adamc@307 894 string " };",
adamc@307 895 newline,
adamc@307 896 newline]
adamc@307 897 end,
adamc@307 898 newline,
adamc@307 899 newline,
adamc@307 900 string "PGresult *res = ",
adamc@307 901 case prepared of
adamc@307 902 NONE => string "PQexecParams(conn, dml, 0, NULL, NULL, NULL, NULL, 0);"
adamc@307 903 | SOME n => box [string "PQexecPrepared(conn, \"lw",
adamc@307 904 string (Int.toString n),
adamc@307 905 string "\", ",
adamc@307 906 string (Int.toString (length (getPargs dml))),
adamc@307 907 string ", paramValues, NULL, NULL, 0);"],
adamc@307 908 newline,
adamc@307 909 newline,
adamc@307 910
adamc@307 911 string "if (res == NULL) lw_error(ctx, FATAL, \"Out of memory allocating DML result.\");",
adamc@307 912 newline,
adamc@307 913 newline,
adamc@307 914
adamc@307 915 string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@307 916 newline,
adamc@307 917 box [string "PQclear(res);",
adamc@307 918 newline,
adamc@307 919 string "lw_error(ctx, FATAL, \"",
adamc@307 920 string (ErrorMsg.spanToString loc),
adamc@307 921 string ": DML failed:\\n%s\\n%s\", ",
adamc@307 922 case prepared of
adamc@307 923 NONE => string "dml"
adamc@307 924 | SOME _ => p_exp env dml,
adamc@307 925 string ", PQerrorMessage(conn));",
adamc@307 926 newline],
adamc@307 927 string "}",
adamc@307 928 newline,
adamc@307 929 newline,
adamc@307 930
adamc@307 931 string "PQclear(res);",
adamc@307 932 newline,
adamc@307 933 string "lw_unit_v;",
adamc@307 934 newline,
adamc@307 935 string "})"]
adamc@307 936
adamc@29 937 and p_exp env = p_exp' false env
adamc@29 938
adamc@129 939 fun p_fun env (fx, n, args, ran, e) =
adamc@129 940 let
adamc@129 941 val nargs = length args
adamc@129 942 val env' = foldl (fn ((x, dom), env) => E.pushERel env x dom) env args
adamc@129 943 in
adamc@129 944 box [string "static",
adamc@129 945 space,
adamc@129 946 p_typ env ran,
adamc@129 947 space,
adamc@129 948 string ("__lwn_" ^ fx ^ "_" ^ Int.toString n),
adamc@129 949 string "(",
adamc@129 950 p_list_sep (box [string ",", space]) (fn x => x)
adamc@129 951 (string "lw_context ctx" :: ListUtil.mapi (fn (i, (_, dom)) =>
adamc@129 952 box [p_typ env dom,
adamc@129 953 space,
adamc@129 954 p_rel env' (nargs - i - 1)]) args),
adamc@129 955 string ")",
adamc@129 956 space,
adamc@129 957 string "{",
adamc@129 958 newline,
adamc@129 959 box[string "return(",
adamc@129 960 p_exp env' e,
adamc@129 961 string ");"],
adamc@129 962 newline,
adamc@129 963 string "}"]
adamc@129 964 end
adamc@129 965
adamc@129 966 fun p_decl env (dAll as (d, _) : decl) =
adamc@29 967 case d of
adamc@29 968 DStruct (n, xts) =>
adamc@196 969 let
adamc@196 970 val env = E.declBinds env dAll
adamc@196 971 in
adamc@196 972 box [string "struct",
adamc@196 973 space,
adamc@196 974 string ("__lws_" ^ Int.toString n),
adamc@196 975 space,
adamc@196 976 string "{",
adamc@196 977 newline,
adamc@196 978 p_list_sep (box []) (fn (x, t) => box [p_typ env t,
adamc@196 979 space,
adamc@196 980 string "__lwf_",
adamc@196 981 string x,
adamc@196 982 string ";",
adamc@196 983 newline]) xts,
adamc@196 984 string "};"]
adamc@196 985 end
adamc@188 986 | DDatatype (Enum, x, n, xncs) =>
adamc@188 987 box [string "enum",
adamc@188 988 space,
adamc@188 989 string ("__lwe_" ^ x ^ "_" ^ Int.toString n),
adamc@188 990 space,
adamc@188 991 string "{",
adamc@188 992 space,
adamc@188 993 p_list_sep (box [string ",", space]) (fn (x, n, _) => string ("__lwc_" ^ x ^ "_" ^ Int.toString n)) xncs,
adamc@188 994 space,
adamc@188 995 string "};"]
adamc@198 996 | DDatatype (Option, _, _, _) => box []
adamc@188 997 | DDatatype (Default, x, n, xncs) =>
adamc@165 998 let
adamc@165 999 val xncsArgs = List.mapPartial (fn (x, n, NONE) => NONE
adamc@165 1000 | (x, n, SOME t) => SOME (x, n, t)) xncs
adamc@165 1001 in
adamc@165 1002 box [string "enum",
adamc@165 1003 space,
adamc@165 1004 string ("__lwe_" ^ x ^ "_" ^ Int.toString n),
adamc@165 1005 space,
adamc@165 1006 string "{",
adamc@165 1007 space,
adamc@165 1008 p_list_sep (box [string ",", space]) (fn (x, n, _) => string ("__lwc_" ^ x ^ "_" ^ Int.toString n)) xncs,
adamc@165 1009 space,
adamc@165 1010 string "};",
adamc@165 1011 newline,
adamc@165 1012 newline,
adamc@165 1013 string "struct",
adamc@165 1014 space,
adamc@167 1015 string ("__lwd_" ^ x ^ "_" ^ Int.toString n),
adamc@165 1016 space,
adamc@165 1017 string "{",
adamc@165 1018 newline,
adamc@165 1019 string "enum",
adamc@165 1020 space,
adamc@165 1021 string ("__lwe_" ^ x ^ "_" ^ Int.toString n),
adamc@165 1022 space,
adamc@165 1023 string "tag;",
adamc@165 1024 newline,
adamc@165 1025 box (case xncsArgs of
adamc@165 1026 [] => []
adamc@165 1027 | _ => [string "union",
adamc@165 1028 space,
adamc@165 1029 string "{",
adamc@165 1030 newline,
adamc@165 1031 p_list_sep newline (fn (x, n, t) => box [p_typ env t,
adamc@165 1032 space,
adamc@196 1033 string ("lw_" ^ x),
adamc@165 1034 string ";"]) xncsArgs,
adamc@165 1035 newline,
adamc@165 1036 string "}",
adamc@165 1037 space,
adamc@165 1038 string "data;",
adamc@165 1039 newline]),
adamc@165 1040 string "};"]
adamc@188 1041 end
adamc@29 1042
adamc@196 1043 | DDatatypeForward _ => box []
adamc@196 1044
adamc@29 1045 | DVal (x, n, t, e) =>
adamc@29 1046 box [p_typ env t,
adamc@29 1047 space,
adamc@29 1048 string ("__lwn_" ^ x ^ "_" ^ Int.toString n),
adamc@29 1049 space,
adamc@29 1050 string "=",
adamc@29 1051 space,
adamc@29 1052 p_exp env e,
adamc@29 1053 string ";"]
adamc@129 1054 | DFun vi => p_fun env vi
adamc@129 1055 | DFunRec vis =>
adamc@29 1056 let
adamc@129 1057 val env = E.declBinds env dAll
adamc@29 1058 in
adamc@129 1059 box [p_list_sep newline (fn (fx, n, args, ran, _) =>
adamc@129 1060 box [string "static",
adamc@129 1061 space,
adamc@129 1062 p_typ env ran,
adamc@129 1063 space,
adamc@129 1064 string ("__lwn_" ^ fx ^ "_" ^ Int.toString n),
adamc@129 1065 string "(lw_context,",
adamc@129 1066 space,
adamc@129 1067 p_list_sep (box [string ",", space])
adamc@129 1068 (fn (_, dom) => p_typ env dom) args,
adamc@129 1069 string ");"]) vis,
adamc@29 1070 newline,
adamc@129 1071 p_list_sep newline (p_fun env) vis,
adamc@129 1072 newline]
adamc@29 1073 end
adamc@273 1074 | DTable (x, _) => box [string "/* SQL table ",
adamc@273 1075 string x,
adamc@273 1076 string " */",
adamc@273 1077 newline]
adamc@275 1078 | DDatabase s => box [string "static void lw_db_validate(lw_context);",
adamc@272 1079 newline,
adamc@282 1080 string "static void lw_db_prepare(lw_context);",
adamc@282 1081 newline,
adamc@275 1082 newline,
adamc@275 1083 string "void lw_db_init(lw_context ctx) {",
adamc@273 1084 newline,
adamc@272 1085 string "PGconn *conn = PQconnectdb(\"",
adamc@272 1086 string (String.toString s),
adamc@272 1087 string "\");",
adamc@272 1088 newline,
adamc@272 1089 string "if (conn == NULL) lw_error(ctx, BOUNDED_RETRY, ",
adamc@272 1090 string "\"libpq can't allocate a connection.\");",
adamc@272 1091 newline,
adamc@272 1092 string "if (PQstatus(conn) != CONNECTION_OK) {",
adamc@272 1093 newline,
adamc@272 1094 box [string "char msg[1024];",
adamc@272 1095 newline,
adamc@272 1096 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@272 1097 newline,
adamc@272 1098 string "msg[1023] = 0;",
adamc@272 1099 newline,
adamc@272 1100 string "PQfinish(conn);",
adamc@272 1101 newline,
adamc@272 1102 string "lw_error(ctx, BOUNDED_RETRY, ",
adamc@272 1103 string "\"Connection to Postgres server failed: %s\", msg);"],
adamc@272 1104 newline,
adamc@272 1105 string "}",
adamc@272 1106 newline,
adamc@272 1107 string "lw_set_db(ctx, conn);",
adamc@272 1108 newline,
adamc@275 1109 string "lw_db_validate(ctx);",
adamc@275 1110 newline,
adamc@282 1111 string "lw_db_prepare(ctx);",
adamc@282 1112 newline,
adamc@272 1113 string "}",
adamc@272 1114 newline,
adamc@272 1115 newline,
adamc@272 1116 string "void lw_db_close(lw_context ctx) {",
adamc@272 1117 newline,
adamc@272 1118 string "PQfinish(lw_get_db(ctx));",
adamc@272 1119 newline,
adamc@272 1120 string "}",
adamc@272 1121 newline]
adamc@29 1122
adamc@282 1123 | DPreparedStatements ss =>
adamc@282 1124 box [string "static void lw_db_prepare(lw_context ctx) {",
adamc@282 1125 newline,
adamc@282 1126 string "PGconn *conn = lw_get_db(ctx);",
adamc@282 1127 newline,
adamc@282 1128 string "PGresult *res;",
adamc@282 1129 newline,
adamc@282 1130 newline,
adamc@282 1131
adamc@282 1132 p_list_sepi newline (fn i => fn (s, n) =>
adamc@282 1133 box [string "res = PQprepare(conn, \"lw",
adamc@282 1134 string (Int.toString i),
adamc@282 1135 string "\", \"",
adamc@282 1136 string (String.toString s),
adamc@282 1137 string "\", ",
adamc@282 1138 string (Int.toString n),
adamc@282 1139 string ", NULL);",
adamc@282 1140 newline,
adamc@282 1141 string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@282 1142 newline,
adamc@282 1143 box [string "char msg[1024];",
adamc@282 1144 newline,
adamc@282 1145 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@282 1146 newline,
adamc@282 1147 string "msg[1023] = 0;",
adamc@282 1148 newline,
adamc@282 1149 string "PQclear(res);",
adamc@282 1150 newline,
adamc@282 1151 string "PQfinish(conn);",
adamc@282 1152 newline,
adamc@282 1153 string "lw_error(ctx, FATAL, \"Unable to create prepared statement:\\n",
adamc@282 1154 string (String.toString s),
adamc@282 1155 string "\\n%s\", msg);",
adamc@282 1156 newline],
adamc@282 1157 string "}",
adamc@282 1158 newline,
adamc@282 1159 string "PQclear(res);",
adamc@282 1160 newline])
adamc@282 1161 ss,
adamc@282 1162
adamc@282 1163 string "}"]
adamc@282 1164
adamc@144 1165 datatype 'a search =
adamc@144 1166 Found of 'a
adamc@144 1167 | NotFound
adamc@144 1168 | Error
adamc@120 1169
adamc@275 1170 fun p_sqltype' env (tAll as (t, loc)) =
adamc@275 1171 case t of
adamc@275 1172 TFfi ("Basis", "int") => "int8"
adamc@275 1173 | TFfi ("Basis", "float") => "float8"
adamc@275 1174 | TFfi ("Basis", "string") => "text"
adamc@275 1175 | TFfi ("Basis", "bool") => "bool"
adamc@275 1176 | _ => (ErrorMsg.errorAt loc "Don't know SQL equivalent of type";
adamc@275 1177 Print.eprefaces' [("Type", p_typ env tAll)];
adamc@275 1178 "ERROR")
adamc@275 1179
adamc@275 1180 fun p_sqltype env t = string (p_sqltype' env t)
adamc@101 1181
adamc@101 1182 fun p_file env (ds, ps) =
adamc@29 1183 let
adamc@101 1184 val (pds, env) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 1185 (p_decl env d,
adamc@31 1186 E.declBinds env d))
adamc@101 1187 env ds
adamc@144 1188
adamc@144 1189 val fields = foldl (fn ((ek, _, _, ts), fields) =>
adamc@144 1190 case ek of
adamc@144 1191 Core.Link => fields
adamc@144 1192 | Core.Action =>
adamc@280 1193 case List.nth (ts, length ts - 2) of
adamc@144 1194 (TRecord i, _) =>
adamc@144 1195 let
adamc@144 1196 val xts = E.lookupStruct env i
adamc@144 1197 val xtsSet = SS.addList (SS.empty, map #1 xts)
adamc@144 1198 in
adamc@144 1199 foldl (fn ((x, _), fields) =>
adamc@144 1200 let
adamc@144 1201 val xtsSet' = Option.getOpt (SM.find (fields, x), SS.empty)
adamc@144 1202 in
adamc@144 1203 SM.insert (fields, x, SS.union (SS.delete (xtsSet, x),
adamc@144 1204 xtsSet'))
adamc@144 1205 end) fields xts
adamc@144 1206 end
adamc@144 1207 | _ => raise Fail "CjrPrint: Last argument of action isn't record")
adamc@144 1208 SM.empty ps
adamc@144 1209
adamc@144 1210 val fnums = SM.foldli (fn (x, xs, fnums) =>
adamc@144 1211 let
adamc@144 1212 val unusable = SS.foldl (fn (x', unusable) =>
adamc@144 1213 case SM.find (fnums, x') of
adamc@144 1214 NONE => unusable
adamc@144 1215 | SOME n => IS.add (unusable, n))
adamc@144 1216 IS.empty xs
adamc@144 1217
adamc@144 1218 fun findAvailable n =
adamc@144 1219 if IS.member (unusable, n) then
adamc@144 1220 findAvailable (n + 1)
adamc@144 1221 else
adamc@144 1222 n
adamc@144 1223 in
adamc@144 1224 SM.insert (fnums, x, findAvailable 0)
adamc@144 1225 end)
adamc@144 1226 SM.empty fields
adamc@144 1227
adamc@144 1228 fun makeSwitch (fnums, i) =
adamc@144 1229 case SM.foldl (fn (n, NotFound) => Found n
adamc@144 1230 | (n, Error) => Error
adamc@144 1231 | (n, Found n') => if n = n' then
adamc@144 1232 Found n'
adamc@144 1233 else
adamc@144 1234 Error) NotFound fnums of
adamc@144 1235 NotFound => box [string "return",
adamc@144 1236 space,
adamc@144 1237 string "-1;"]
adamc@144 1238 | Found n => box [string "return",
adamc@144 1239 space,
adamc@144 1240 string (Int.toString n),
adamc@144 1241 string ";"]
adamc@144 1242 | Error =>
adamc@144 1243 let
adamc@144 1244 val cmap = SM.foldli (fn (x, n, cmap) =>
adamc@144 1245 let
adamc@144 1246 val ch = if i < size x then
adamc@144 1247 String.sub (x, i)
adamc@144 1248 else
adamc@144 1249 chr 0
adamc@144 1250
adamc@144 1251 val fnums = case CM.find (cmap, ch) of
adamc@144 1252 NONE => SM.empty
adamc@144 1253 | SOME fnums => fnums
adamc@144 1254 val fnums = SM.insert (fnums, x, n)
adamc@144 1255 in
adamc@144 1256 CM.insert (cmap, ch, fnums)
adamc@144 1257 end)
adamc@144 1258 CM.empty fnums
adamc@144 1259
adamc@144 1260 val cmap = CM.listItemsi cmap
adamc@144 1261 in
adamc@144 1262 case cmap of
adamc@144 1263 [(_, fnums)] =>
adamc@144 1264 box [string "if",
adamc@144 1265 space,
adamc@144 1266 string "(name[",
adamc@144 1267 string (Int.toString i),
adamc@144 1268 string "]",
adamc@144 1269 space,
adamc@144 1270 string "==",
adamc@144 1271 space,
adamc@144 1272 string "0)",
adamc@144 1273 space,
adamc@144 1274 string "return",
adamc@144 1275 space,
adamc@144 1276 string "-1;",
adamc@144 1277 newline,
adamc@144 1278 makeSwitch (fnums, i+1)]
adamc@144 1279 | _ =>
adamc@144 1280 box [string "switch",
adamc@144 1281 space,
adamc@144 1282 string "(name[",
adamc@144 1283 string (Int.toString i),
adamc@144 1284 string "])",
adamc@144 1285 space,
adamc@144 1286 string "{",
adamc@144 1287 newline,
adamc@144 1288 box (map (fn (ch, fnums) =>
adamc@144 1289 box [string "case",
adamc@144 1290 space,
adamc@144 1291 if ch = chr 0 then
adamc@144 1292 string "0:"
adamc@144 1293 else
adamc@144 1294 box [string "'",
adamc@144 1295 string (Char.toString ch),
adamc@144 1296 string "':"],
adamc@144 1297 newline,
adamc@144 1298 makeSwitch (fnums, i+1),
adamc@144 1299 newline]) cmap),
adamc@144 1300 string "default:",
adamc@144 1301 newline,
adamc@144 1302 string "return",
adamc@144 1303 space,
adamc@144 1304 string "-1;",
adamc@144 1305 newline,
adamc@144 1306 string "}"]
adamc@144 1307 end
adamc@144 1308
adamc@186 1309 fun capitalize s =
adamc@186 1310 if s = "" then
adamc@186 1311 ""
adamc@186 1312 else
adamc@186 1313 str (Char.toUpper (String.sub (s, 0))) ^ String.extract (s, 1, NONE)
adamc@186 1314
adamc@144 1315 fun unurlify (t, loc) =
adamc@144 1316 case t of
adamc@186 1317 TFfi (m, t) => string ("lw_" ^ m ^ "_unurlify" ^ capitalize t ^ "(ctx, &request)")
adamc@144 1318
adamc@144 1319 | TRecord 0 => string "lw_unit_v"
adamc@144 1320 | TRecord i =>
adamc@144 1321 let
adamc@144 1322 val xts = E.lookupStruct env i
adamc@144 1323 in
adamc@144 1324 box [string "({",
adamc@144 1325 newline,
adamc@144 1326 box (map (fn (x, t) =>
adamc@144 1327 box [p_typ env t,
adamc@144 1328 space,
adamc@144 1329 string x,
adamc@144 1330 space,
adamc@144 1331 string "=",
adamc@144 1332 space,
adamc@144 1333 unurlify t,
adamc@144 1334 string ";",
adamc@144 1335 newline]) xts),
adamc@144 1336 string "struct",
adamc@144 1337 space,
adamc@144 1338 string "__lws_",
adamc@144 1339 string (Int.toString i),
adamc@144 1340 space,
adamc@181 1341 string "tmp",
adamc@144 1342 space,
adamc@144 1343 string "=",
adamc@144 1344 space,
adamc@144 1345 string "{",
adamc@144 1346 space,
adamc@144 1347 p_list_sep (box [string ",", space]) (fn (x, _) => string x) xts,
adamc@144 1348 space,
adamc@144 1349 string "};",
adamc@144 1350 newline,
adamc@181 1351 string "tmp;",
adamc@144 1352 newline,
adamc@144 1353 string "})"]
adamc@144 1354 end
adamc@144 1355
adamc@188 1356 | TDatatype (Enum, i, _) =>
adamc@188 1357 let
adamc@188 1358 val (x, xncs) = E.lookupDatatype env i
adamc@188 1359
adamc@188 1360 fun doEm xncs =
adamc@188 1361 case xncs of
adamc@188 1362 [] => string ("(lw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), (enum __lwe_"
adamc@188 1363 ^ x ^ "_" ^ Int.toString i ^ ")0)")
adamc@188 1364 | (x', n, to) :: rest =>
adamc@188 1365 box [string "((!strncmp(request, \"",
adamc@188 1366 string x',
adamc@188 1367 string "\", ",
adamc@188 1368 string (Int.toString (size x')),
adamc@188 1369 string ") && (request[",
adamc@188 1370 string (Int.toString (size x')),
adamc@188 1371 string "] == 0 || request[",
adamc@188 1372 string (Int.toString (size x')),
adamc@188 1373 string ("] == '/')) ? __lwc_" ^ x' ^ "_" ^ Int.toString n),
adamc@188 1374 space,
adamc@188 1375 string ":",
adamc@188 1376 space,
adamc@188 1377 doEm rest,
adamc@188 1378 string ")"]
adamc@188 1379 in
adamc@188 1380 doEm xncs
adamc@188 1381 end
adamc@188 1382
adamc@198 1383 | TDatatype (Option, i, xncs) =>
adamc@198 1384 let
adamc@198 1385 val (x, _) = E.lookupDatatype env i
adamc@198 1386
adamc@198 1387 val (no_arg, has_arg, t) =
adamc@198 1388 case !xncs of
adamc@198 1389 [(no_arg, _, NONE), (has_arg, _, SOME t)] =>
adamc@198 1390 (no_arg, has_arg, t)
adamc@198 1391 | [(has_arg, _, SOME t), (no_arg, _, NONE)] =>
adamc@198 1392 (no_arg, has_arg, t)
adamc@198 1393 | _ => raise Fail "CjrPrint: unfooify misclassified Option datatype"
adamc@198 1394 in
adamc@198 1395 box [string "(request[0] == '/' ? ++request : request,",
adamc@198 1396 newline,
adamc@198 1397 string "((!strncmp(request, \"",
adamc@198 1398 string no_arg,
adamc@198 1399 string "\", ",
adamc@198 1400 string (Int.toString (size no_arg)),
adamc@198 1401 string ") && (request[",
adamc@198 1402 string (Int.toString (size no_arg)),
adamc@198 1403 string "] == 0 || request[",
adamc@198 1404 string (Int.toString (size no_arg)),
adamc@198 1405 string "] == '/')) ? (request",
adamc@198 1406 space,
adamc@198 1407 string "+=",
adamc@198 1408 space,
adamc@198 1409 string (Int.toString (size no_arg)),
adamc@198 1410 string ", NULL) : ((!strncmp(request, \"",
adamc@198 1411 string has_arg,
adamc@198 1412 string "\", ",
adamc@198 1413 string (Int.toString (size has_arg)),
adamc@198 1414 string ") && (request[",
adamc@198 1415 string (Int.toString (size has_arg)),
adamc@198 1416 string "] == 0 || request[",
adamc@198 1417 string (Int.toString (size has_arg)),
adamc@198 1418 string "] == '/')) ? (request",
adamc@198 1419 space,
adamc@198 1420 string "+=",
adamc@198 1421 space,
adamc@198 1422 string (Int.toString (size has_arg)),
adamc@200 1423 string ", (request[0] == '/' ? ++request : NULL), ",
adamc@200 1424 newline,
adamc@198 1425
adamc@198 1426 case #1 t of
adamc@198 1427 TDatatype _ => unurlify t
adamc@199 1428 | TFfi ("Basis", "string") => unurlify t
adamc@198 1429 | _ => box [string "({",
adamc@198 1430 newline,
adamc@198 1431 p_typ env t,
adamc@198 1432 space,
adamc@198 1433 string "*tmp",
adamc@198 1434 space,
adamc@198 1435 string "=",
adamc@198 1436 space,
adamc@198 1437 string "lw_malloc(ctx, sizeof(",
adamc@198 1438 p_typ env t,
adamc@198 1439 string "));",
adamc@198 1440 newline,
adamc@198 1441 string "*tmp",
adamc@198 1442 space,
adamc@198 1443 string "=",
adamc@198 1444 space,
adamc@198 1445 unurlify t,
adamc@198 1446 string ";",
adamc@198 1447 newline,
adamc@198 1448 string "tmp;",
adamc@198 1449 newline,
adamc@198 1450 string "})"],
adamc@198 1451 string ")",
adamc@198 1452 newline,
adamc@198 1453 string ":",
adamc@198 1454 space,
adamc@198 1455 string ("(lw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), NULL))))")]
adamc@198 1456 end
adamc@198 1457
adamc@188 1458 | TDatatype (Default, i, _) =>
adamc@166 1459 let
adamc@166 1460 val (x, xncs) = E.lookupDatatype env i
adamc@166 1461
adamc@166 1462 fun doEm xncs =
adamc@166 1463 case xncs of
adamc@167 1464 [] => string ("(lw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), NULL)")
adamc@167 1465 | (x', n, to) :: rest =>
adamc@167 1466 box [string "((!strncmp(request, \"",
adamc@167 1467 string x',
adamc@167 1468 string "\", ",
adamc@167 1469 string (Int.toString (size x')),
adamc@167 1470 string ") && (request[",
adamc@167 1471 string (Int.toString (size x')),
adamc@167 1472 string "] == 0 || request[",
adamc@167 1473 string (Int.toString (size x')),
adamc@167 1474 string "] == '/')) ? ({",
adamc@166 1475 newline,
adamc@167 1476 string "struct",
adamc@167 1477 space,
adamc@166 1478 string ("__lwd_" ^ x ^ "_" ^ Int.toString i),
adamc@166 1479 space,
adamc@181 1480 string "*tmp = lw_malloc(ctx, sizeof(struct __lwd_",
adamc@167 1481 string x,
adamc@167 1482 string "_",
adamc@167 1483 string (Int.toString i),
adamc@167 1484 string "));",
adamc@166 1485 newline,
adamc@181 1486 string "tmp->tag",
adamc@166 1487 space,
adamc@166 1488 string "=",
adamc@166 1489 space,
adamc@167 1490 string ("__lwc_" ^ x' ^ "_" ^ Int.toString n),
adamc@166 1491 string ";",
adamc@166 1492 newline,
adamc@166 1493 string "request",
adamc@166 1494 space,
adamc@166 1495 string "+=",
adamc@166 1496 space,
adamc@167 1497 string (Int.toString (size x')),
adamc@166 1498 string ";",
adamc@166 1499 newline,
adamc@200 1500 string "if (request[0] == '/') ++request;",
adamc@200 1501 newline,
adamc@166 1502 case to of
adamc@166 1503 NONE => box []
adamc@197 1504 | SOME t => box [string "tmp->data.lw_",
adamc@167 1505 string x',
adamc@166 1506 space,
adamc@166 1507 string "=",
adamc@166 1508 space,
adamc@166 1509 unurlify t,
adamc@166 1510 string ";",
adamc@166 1511 newline],
adamc@181 1512 string "tmp;",
adamc@166 1513 newline,
adamc@166 1514 string "})",
adamc@166 1515 space,
adamc@166 1516 string ":",
adamc@166 1517 space,
adamc@166 1518 doEm rest,
adamc@166 1519 string ")"]
adamc@166 1520 in
adamc@166 1521 doEm xncs
adamc@166 1522 end
adamc@166 1523
adamc@144 1524 | _ => (ErrorMsg.errorAt loc "Unable to choose a URL decoding function";
adamc@144 1525 space)
adamc@144 1526
adamc@144 1527
adamc@144 1528 fun p_page (ek, s, n, ts) =
adamc@144 1529 let
adamc@144 1530 val (ts, defInputs, inputsVar) =
adamc@144 1531 case ek of
adamc@144 1532 Core.Link => (ts, string "", string "")
adamc@144 1533 | Core.Action =>
adamc@280 1534 case List.nth (ts, length ts - 2) of
adamc@144 1535 (TRecord i, _) =>
adamc@144 1536 let
adamc@144 1537 val xts = E.lookupStruct env i
adamc@144 1538 in
adamc@280 1539 (List.take (ts, length ts - 2),
adamc@144 1540 box [box (map (fn (x, t) => box [p_typ env t,
adamc@144 1541 space,
adamc@144 1542 string "lw_input_",
adamc@144 1543 string x,
adamc@144 1544 string ";",
adamc@144 1545 newline]) xts),
adamc@144 1546 newline,
adamc@144 1547 box (map (fn (x, t) =>
adamc@144 1548 let
adamc@144 1549 val n = case SM.find (fnums, x) of
adamc@144 1550 NONE => raise Fail "CjrPrint: Can't find in fnums"
adamc@144 1551 | SOME n => n
adamc@190 1552
adamc@190 1553 val f = case t of
adamc@190 1554 (TFfi ("Basis", "bool"), _) => "optional_"
adamc@190 1555 | _ => ""
adamc@144 1556 in
adamc@190 1557 box [string "request = lw_get_",
adamc@190 1558 string f,
adamc@190 1559 string "input(ctx, ",
adamc@144 1560 string (Int.toString n),
adamc@144 1561 string ");",
adamc@144 1562 newline,
adamc@144 1563 string "if (request == NULL) {",
adamc@144 1564 newline,
adamc@144 1565 box [string "printf(\"Missing input ",
adamc@144 1566 string x,
adamc@144 1567 string "\\n\");",
adamc@144 1568 newline,
adamc@144 1569 string "exit(1);"],
adamc@144 1570 newline,
adamc@144 1571 string "}",
adamc@144 1572 newline,
adamc@144 1573 string "lw_input_",
adamc@144 1574 string x,
adamc@144 1575 space,
adamc@144 1576 string "=",
adamc@144 1577 space,
adamc@144 1578 unurlify t,
adamc@144 1579 string ";",
adamc@144 1580 newline]
adamc@144 1581 end) xts),
adamc@144 1582 string "struct __lws_",
adamc@144 1583 string (Int.toString i),
adamc@144 1584 space,
adamc@144 1585 string "lw_inputs",
adamc@144 1586 space,
adamc@144 1587 string "= {",
adamc@144 1588 newline,
adamc@144 1589 box (map (fn (x, _) => box [string "lw_input_",
adamc@144 1590 string x,
adamc@144 1591 string ",",
adamc@144 1592 newline]) xts),
adamc@144 1593 string "};",
adamc@144 1594 newline],
adamc@144 1595 box [string ",",
adamc@144 1596 space,
adamc@144 1597 string "lw_inputs"])
adamc@144 1598 end
adamc@144 1599
adamc@144 1600 | _ => raise Fail "CjrPrint: Last argument to an action isn't a record"
adamc@144 1601 in
adamc@144 1602 box [string "if (!strncmp(request, \"",
adamc@144 1603 string (String.toString s),
adamc@144 1604 string "\", ",
adamc@144 1605 string (Int.toString (size s)),
adamc@198 1606 string ") && (request[",
adamc@198 1607 string (Int.toString (size s)),
adamc@198 1608 string "] == 0 || request[",
adamc@198 1609 string (Int.toString (size s)),
adamc@198 1610 string "] == '/')) {",
adamc@144 1611 newline,
adamc@144 1612 string "request += ",
adamc@144 1613 string (Int.toString (size s)),
adamc@144 1614 string ";",
adamc@144 1615 newline,
adamc@144 1616 string "if (*request == '/') ++request;",
adamc@144 1617 newline,
adamc@144 1618 box [string "{",
adamc@144 1619 newline,
adamc@144 1620 box (ListUtil.mapi (fn (i, t) => box [p_typ env t,
adamc@144 1621 space,
adamc@144 1622 string "arg",
adamc@144 1623 string (Int.toString i),
adamc@144 1624 space,
adamc@144 1625 string "=",
adamc@144 1626 space,
adamc@144 1627 unurlify t,
adamc@144 1628 string ";",
adamc@144 1629 newline]) ts),
adamc@144 1630 defInputs,
adamc@144 1631 p_enamed env n,
adamc@144 1632 string "(",
adamc@144 1633 p_list_sep (box [string ",", space])
adamc@144 1634 (fn x => x)
adamc@272 1635 (string "ctx"
adamc@280 1636 :: ListUtil.mapi (fn (i, _) => string ("arg" ^ Int.toString i)) ts),
adamc@144 1637 inputsVar,
adamc@280 1638 string ", lw_unit_v);",
adamc@144 1639 newline,
adamc@144 1640 string "return;",
adamc@144 1641 newline,
adamc@144 1642 string "}",
adamc@144 1643 newline,
adamc@144 1644 string "}"]
adamc@144 1645 ]
adamc@144 1646 end
adamc@144 1647
adamc@144 1648 val pds' = map p_page ps
adamc@275 1649
adamc@275 1650 val tables = List.mapPartial (fn (DTable (s, xts), _) => SOME (s, xts)
adamc@275 1651 | _ => NONE) ds
adamc@275 1652
adamc@275 1653 val validate =
adamc@275 1654 box [string "static void lw_db_validate(lw_context ctx) {",
adamc@275 1655 newline,
adamc@275 1656 string "PGconn *conn = lw_get_db(ctx);",
adamc@275 1657 newline,
adamc@275 1658 string "PGresult *res;",
adamc@275 1659 newline,
adamc@275 1660 newline,
adamc@275 1661 p_list_sep newline
adamc@275 1662 (fn (s, xts) =>
adamc@275 1663 let
adamc@275 1664 val q = "SELECT COUNT(*) FROM pg_class WHERE relname = '"
adamc@275 1665 ^ s ^ "'"
adamc@275 1666
adamc@275 1667 val q' = String.concat ["SELECT COUNT(*) FROM pg_attribute WHERE attrelid = (SELECT oid FROM pg_class WHERE relname = '",
adamc@275 1668 s,
adamc@275 1669 "') AND (",
adamc@275 1670 String.concatWith " OR "
adamc@275 1671 (map (fn (x, t) =>
adamc@275 1672 String.concat ["(attname = 'lw_",
adamc@275 1673 CharVector.map
adamc@275 1674 Char.toLower x,
adamc@275 1675 "' AND atttypid = (SELECT oid FROM pg_type",
adamc@275 1676 " WHERE typname = '",
adamc@275 1677 p_sqltype' env t,
adamc@275 1678 "'))"]) xts),
adamc@275 1679 ")"]
adamc@275 1680
adamc@275 1681 val q'' = String.concat ["SELECT COUNT(*) FROM pg_attribute WHERE attrelid = (SELECT oid FROM pg_class WHERE relname = '",
adamc@275 1682 s,
adamc@275 1683 "') AND attnum >= 0"]
adamc@275 1684 in
adamc@275 1685 box [string "res = PQexec(conn, \"",
adamc@275 1686 string q,
adamc@275 1687 string "\");",
adamc@275 1688 newline,
adamc@275 1689 newline,
adamc@275 1690 string "if (res == NULL) {",
adamc@275 1691 newline,
adamc@275 1692 box [string "PQfinish(conn);",
adamc@275 1693 newline,
adamc@275 1694 string "lw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1695 newline],
adamc@275 1696 string "}",
adamc@275 1697 newline,
adamc@275 1698 newline,
adamc@275 1699 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1700 newline,
adamc@275 1701 box [string "char msg[1024];",
adamc@275 1702 newline,
adamc@275 1703 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1704 newline,
adamc@275 1705 string "msg[1023] = 0;",
adamc@275 1706 newline,
adamc@275 1707 string "PQclear(res);",
adamc@275 1708 newline,
adamc@275 1709 string "PQfinish(conn);",
adamc@275 1710 newline,
adamc@275 1711 string "lw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1712 string q,
adamc@275 1713 string "\\n%s\", msg);",
adamc@275 1714 newline],
adamc@275 1715 string "}",
adamc@275 1716 newline,
adamc@275 1717 newline,
adamc@275 1718 string "if (strcmp(PQgetvalue(res, 0, 0), \"1\")) {",
adamc@275 1719 newline,
adamc@275 1720 box [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, \"Table '",
adamc@275 1725 string s,
adamc@275 1726 string "' does not exist.\");",
adamc@275 1727 newline],
adamc@275 1728 string "}",
adamc@275 1729 newline,
adamc@275 1730 newline,
adamc@275 1731 string "PQclear(res);",
adamc@275 1732 newline,
adamc@275 1733
adamc@275 1734 string "res = PQexec(conn, \"",
adamc@275 1735 string q',
adamc@275 1736 string "\");",
adamc@275 1737 newline,
adamc@275 1738 newline,
adamc@275 1739 string "if (res == NULL) {",
adamc@275 1740 newline,
adamc@275 1741 box [string "PQfinish(conn);",
adamc@275 1742 newline,
adamc@275 1743 string "lw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1744 newline],
adamc@275 1745 string "}",
adamc@275 1746 newline,
adamc@275 1747 newline,
adamc@275 1748 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1749 newline,
adamc@275 1750 box [string "char msg[1024];",
adamc@275 1751 newline,
adamc@275 1752 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1753 newline,
adamc@275 1754 string "msg[1023] = 0;",
adamc@275 1755 newline,
adamc@275 1756 string "PQclear(res);",
adamc@275 1757 newline,
adamc@275 1758 string "PQfinish(conn);",
adamc@275 1759 newline,
adamc@275 1760 string "lw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1761 string q',
adamc@275 1762 string "\\n%s\", msg);",
adamc@275 1763 newline],
adamc@275 1764 string "}",
adamc@275 1765 newline,
adamc@275 1766 newline,
adamc@275 1767 string "if (strcmp(PQgetvalue(res, 0, 0), \"",
adamc@275 1768 string (Int.toString (length xts)),
adamc@275 1769 string "\")) {",
adamc@275 1770 newline,
adamc@275 1771 box [string "PQclear(res);",
adamc@275 1772 newline,
adamc@275 1773 string "PQfinish(conn);",
adamc@275 1774 newline,
adamc@275 1775 string "lw_error(ctx, FATAL, \"Table '",
adamc@275 1776 string s,
adamc@275 1777 string "' has the wrong column types.\");",
adamc@275 1778 newline],
adamc@275 1779 string "}",
adamc@275 1780 newline,
adamc@275 1781 newline,
adamc@275 1782 string "PQclear(res);",
adamc@275 1783 newline,
adamc@275 1784 newline,
adamc@275 1785
adamc@275 1786 string "res = PQexec(conn, \"",
adamc@275 1787 string q'',
adamc@275 1788 string "\");",
adamc@275 1789 newline,
adamc@275 1790 newline,
adamc@275 1791 string "if (res == NULL) {",
adamc@275 1792 newline,
adamc@275 1793 box [string "PQfinish(conn);",
adamc@275 1794 newline,
adamc@275 1795 string "lw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1796 newline],
adamc@275 1797 string "}",
adamc@275 1798 newline,
adamc@275 1799 newline,
adamc@275 1800 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1801 newline,
adamc@275 1802 box [string "char msg[1024];",
adamc@275 1803 newline,
adamc@275 1804 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1805 newline,
adamc@275 1806 string "msg[1023] = 0;",
adamc@275 1807 newline,
adamc@275 1808 string "PQclear(res);",
adamc@275 1809 newline,
adamc@275 1810 string "PQfinish(conn);",
adamc@275 1811 newline,
adamc@275 1812 string "lw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1813 string q'',
adamc@275 1814 string "\\n%s\", msg);",
adamc@275 1815 newline],
adamc@275 1816 string "}",
adamc@275 1817 newline,
adamc@275 1818 newline,
adamc@275 1819 string "if (strcmp(PQgetvalue(res, 0, 0), \"",
adamc@275 1820 string (Int.toString (length xts)),
adamc@275 1821 string "\")) {",
adamc@275 1822 newline,
adamc@275 1823 box [string "PQclear(res);",
adamc@275 1824 newline,
adamc@275 1825 string "PQfinish(conn);",
adamc@275 1826 newline,
adamc@275 1827 string "lw_error(ctx, FATAL, \"Table '",
adamc@275 1828 string s,
adamc@275 1829 string "' has extra columns.\");",
adamc@275 1830 newline],
adamc@275 1831 string "}",
adamc@275 1832 newline,
adamc@275 1833 newline,
adamc@275 1834 string "PQclear(res);",
adamc@275 1835 newline]
adamc@275 1836 end) tables,
adamc@275 1837 string "}"]
adamc@29 1838 in
adamc@144 1839 box [string "#include <stdio.h>",
adamc@144 1840 newline,
adamc@144 1841 string "#include <stdlib.h>",
adamc@144 1842 newline,
adamc@272 1843 string "#include <string.h>",
adamc@272 1844 newline,
adamc@272 1845 string "#include <postgresql/libpq-fe.h>",
adamc@272 1846 newline,
adamc@144 1847 newline,
adamc@244 1848 string "#include \"urweb.h\"",
adamc@101 1849 newline,
adamc@101 1850 newline,
adamc@101 1851 p_list_sep newline (fn x => x) pds,
adamc@101 1852 newline,
adamc@144 1853 string "int lw_inputs_len = ",
adamc@144 1854 string (Int.toString (SM.foldl Int.max 0 fnums + 1)),
adamc@144 1855 string ";",
adamc@144 1856 newline,
adamc@144 1857 newline,
adamc@144 1858 string "int lw_input_num(char *name) {",
adamc@144 1859 newline,
adamc@144 1860 makeSwitch (fnums, 0),
adamc@144 1861 string "}",
adamc@144 1862 newline,
adamc@144 1863 newline,
adamc@117 1864 string "void lw_handle(lw_context ctx, char *request) {",
adamc@101 1865 newline,
adamc@101 1866 p_list_sep newline (fn x => x) pds',
adamc@101 1867 newline,
adamc@101 1868 string "}",
adamc@275 1869 newline,
adamc@275 1870 newline,
adamc@275 1871 validate,
adamc@101 1872 newline]
adamc@29 1873 end
adamc@29 1874
adamc@274 1875 fun p_sql env (ds, _) =
adamc@274 1876 let
adamc@274 1877 val (pps, _) = ListUtil.foldlMap
adamc@274 1878 (fn (dAll as (d, _), env) =>
adamc@274 1879 let
adamc@274 1880 val pp = case d of
adamc@274 1881 DTable (s, xts) =>
adamc@274 1882 box [string "CREATE TABLE ",
adamc@274 1883 string s,
adamc@274 1884 string "(",
adamc@274 1885 p_list (fn (x, t) =>
adamc@274 1886 box [string "lw_",
adamc@275 1887 string (CharVector.map Char.toLower x),
adamc@274 1888 space,
adamc@274 1889 p_sqltype env t,
adamc@274 1890 space,
adamc@274 1891 string "NOT",
adamc@274 1892 space,
adamc@274 1893 string "NULL"]) xts,
adamc@274 1894 string ");",
adamc@274 1895 newline,
adamc@274 1896 newline]
adamc@274 1897 | _ => box []
adamc@274 1898 in
adamc@274 1899 (pp, E.declBinds env dAll)
adamc@274 1900 end)
adamc@274 1901 env ds
adamc@274 1902 in
adamc@274 1903 box pps
adamc@274 1904 end
adamc@274 1905
adamc@29 1906 end