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annotate src/cjr_print.sml @ 322:aa89b73d83e4

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Improve detection of opportunities for prepared statements with bool parameters
author Adam Chlipala <adamc@hcoop.net>
date Thu, 11 Sep 2008 12:22:06 -0400
parents 04ebfe929a98
children 5030e909fbf3
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@316 60 val ident = String.translate (fn #"'" => "PRIME"
adamc@316 61 | ch => str ch)
adamc@316 62
adamc@316 63 val p_ident = string o ident
adamc@316 64
adamc@29 65 fun p_typ' par env (t, loc) =
adamc@29 66 case t of
adamc@269 67 TFun (t1, t2) => parenIf par (box [p_typ' true env t2,
adamc@109 68 space,
adamc@109 69 string "(*)",
adamc@109 70 space,
adamc@109 71 string "(",
adamc@109 72 p_typ env t1,
adamc@109 73 string ")"])
adamc@29 74 | TRecord i => box [string "struct",
adamc@29 75 space,
adamc@311 76 string "__uws_",
adamc@29 77 string (Int.toString i)]
adamc@188 78 | TDatatype (Enum, n, _) =>
adamc@188 79 (box [string "enum",
adamc@188 80 space,
adamc@311 81 string ("__uwe_" ^ #1 (E.lookupDatatype env n) ^ "_" ^ Int.toString n)]
adamc@311 82 handle CjrEnv.UnboundNamed _ => string ("__uwd_UNBOUND__" ^ Int.toString n))
adamc@198 83 | TDatatype (Option, n, xncs) =>
adamc@198 84 (case ListUtil.search #3 (!xncs) of
adamc@198 85 NONE => raise Fail "CjrPrint: TDatatype marked Option has no constructor with an argument"
adamc@198 86 | SOME t =>
adamc@198 87 case #1 t of
adamc@198 88 TDatatype _ => p_typ' par env t
adamc@199 89 | TFfi ("Basis", "string") => p_typ' par env t
adamc@198 90 | _ => box [p_typ' par env t,
adamc@198 91 string "*"])
adamc@188 92 | TDatatype (Default, n, _) =>
adamc@165 93 (box [string "struct",
adamc@165 94 space,
adamc@311 95 string ("__uwd_" ^ #1 (E.lookupDatatype env n) ^ "_" ^ Int.toString n ^ "*")]
adamc@311 96 handle CjrEnv.UnboundNamed _ => string ("__uwd_UNBOUND__" ^ Int.toString n))
adamc@316 97 | TFfi (m, x) => box [string "uw_", p_ident m, string "_", p_ident x]
adamc@288 98 | TOption t =>
adamc@288 99 (case #1 t of
adamc@288 100 TDatatype _ => p_typ' par env t
adamc@288 101 | TFfi ("Basis", "string") => p_typ' par env t
adamc@288 102 | _ => box [p_typ' par env t,
adamc@288 103 string "*"])
adamc@29 104
adamc@29 105 and p_typ env = p_typ' false env
adamc@29 106
adamc@316 107 fun p_rel env n = string ("__uwr_" ^ ident (#1 (E.lookupERel env n)) ^ "_" ^ Int.toString (E.countERels env - n - 1))
adamc@311 108 handle CjrEnv.UnboundRel _ => string ("__uwr_UNBOUND_" ^ Int.toString (E.countERels env - n - 1))
adamc@29 109
adamc@109 110 fun p_enamed env n =
adamc@316 111 string ("__uwn_" ^ ident (#1 (E.lookupENamed env n)) ^ "_" ^ Int.toString n)
adamc@311 112 handle CjrEnv.UnboundNamed _ => string ("__uwn_UNBOUND_" ^ Int.toString n)
adamc@109 113
adamc@182 114 fun p_con_named env n =
adamc@316 115 string ("__uwc_" ^ ident (#1 (E.lookupConstructor env n)) ^ "_" ^ Int.toString n)
adamc@311 116 handle CjrEnv.UnboundNamed _ => string ("__uwc_UNBOUND_" ^ Int.toString n)
adamc@182 117
adamc@182 118 fun p_pat_preamble env (p, _) =
adamc@182 119 case p of
adamc@182 120 PWild => (box [],
adamc@182 121 env)
adamc@182 122 | PVar (x, t) => (box [p_typ env t,
adamc@182 123 space,
adamc@311 124 string "__uwr_",
adamc@316 125 p_ident x,
adamc@182 126 string "_",
adamc@182 127 string (Int.toString (E.countERels env)),
adamc@182 128 string ";",
adamc@182 129 newline],
adamc@196 130 E.pushERel env x t)
adamc@182 131 | PPrim _ => (box [], env)
adamc@188 132 | PCon (_, _, NONE) => (box [], env)
adamc@188 133 | PCon (_, _, SOME p) => p_pat_preamble env p
adamc@182 134 | PRecord xps =>
adamc@182 135 foldl (fn ((_, p, _), (pp, env)) =>
adamc@182 136 let
adamc@182 137 val (pp', env) = p_pat_preamble env p
adamc@182 138 in
adamc@182 139 (box [pp', pp], env)
adamc@182 140 end) (box [], env) xps
adamc@288 141 | PNone _ => (box [], env)
adamc@288 142 | PSome (_, p) => p_pat_preamble env p
adamc@182 143
adamc@182 144 fun p_patCon env pc =
adamc@182 145 case pc of
adamc@182 146 PConVar n => p_con_named env n
adamc@316 147 | PConFfi {mod = m, con, ...} => string ("uw_" ^ ident m ^ "_" ^ ident con)
adamc@182 148
adamc@182 149 fun p_pat (env, exit, depth) (p, _) =
adamc@182 150 case p of
adamc@182 151 PWild =>
adamc@182 152 (box [], env)
adamc@182 153 | PVar (x, t) =>
adamc@311 154 (box [string "__uwr_",
adamc@316 155 p_ident x,
adamc@182 156 string "_",
adamc@182 157 string (Int.toString (E.countERels env)),
adamc@182 158 space,
adamc@182 159 string "=",
adamc@182 160 space,
adamc@182 161 string "disc",
adamc@182 162 string (Int.toString depth),
adamc@182 163 string ";"],
adamc@182 164 E.pushERel env x t)
adamc@182 165 | PPrim (Prim.Int n) =>
adamc@182 166 (box [string "if",
adamc@182 167 space,
adamc@182 168 string "(disc",
adamc@182 169 string (Int.toString depth),
adamc@182 170 space,
adamc@182 171 string "!=",
adamc@182 172 space,
adamc@276 173 Prim.p_t_GCC (Prim.Int n),
adamc@182 174 string ")",
adamc@182 175 space,
adamc@182 176 exit],
adamc@182 177 env)
adamc@182 178 | PPrim (Prim.String s) =>
adamc@182 179 (box [string "if",
adamc@182 180 space,
adamc@182 181 string "(strcmp(disc",
adamc@182 182 string (Int.toString depth),
adamc@182 183 string ",",
adamc@182 184 space,
adamc@276 185 Prim.p_t_GCC (Prim.String s),
adamc@182 186 string "))",
adamc@182 187 space,
adamc@182 188 exit],
adamc@182 189 env)
adamc@182 190 | PPrim _ => raise Fail "CjrPrint: Disallowed PPrim primitive"
adamc@182 191
adamc@188 192 | PCon (dk, pc, po) =>
adamc@182 193 let
adamc@182 194 val (p, env) =
adamc@182 195 case po of
adamc@182 196 NONE => (box [], env)
adamc@182 197 | SOME p =>
adamc@182 198 let
adamc@182 199 val (p, env) = p_pat (env, exit, depth + 1) p
adamc@182 200
adamc@182 201 val (x, to) = case pc of
adamc@182 202 PConVar n =>
adamc@182 203 let
adamc@182 204 val (x, to, _) = E.lookupConstructor env n
adamc@182 205 in
adamc@316 206 ("uw_" ^ ident x, to)
adamc@182 207 end
adamc@188 208 | PConFfi {mod = m, con, arg, ...} =>
adamc@316 209 ("uw_" ^ ident m ^ "_" ^ ident con, arg)
adamc@182 210
adamc@182 211 val t = case to of
adamc@182 212 NONE => raise Fail "CjrPrint: Constructor mismatch"
adamc@182 213 | SOME t => t
adamc@182 214 in
adamc@182 215 (box [string "{",
adamc@182 216 newline,
adamc@182 217 p_typ env t,
adamc@182 218 space,
adamc@182 219 string "disc",
adamc@182 220 string (Int.toString (depth + 1)),
adamc@182 221 space,
adamc@182 222 string "=",
adamc@182 223 space,
adamc@198 224 case dk of
adamc@198 225 Enum => raise Fail "CjrPrint: Looking at argument of no-argument constructor"
adamc@198 226 | Default => box [string "disc",
adamc@198 227 string (Int.toString depth),
adamc@198 228 string "->data.",
adamc@198 229 string x]
adamc@198 230 | Option =>
adamc@198 231 case #1 t of
adamc@198 232 TDatatype _ => box [string "disc",
adamc@198 233 string (Int.toString depth)]
adamc@199 234 | TFfi ("Basis", "string") => box [string "disc",
adamc@199 235 string (Int.toString depth)]
adamc@198 236 | _ => box [string "*disc",
adamc@198 237 string (Int.toString depth)],
adamc@182 238 string ";",
adamc@182 239 newline,
adamc@182 240 p,
adamc@182 241 newline,
adamc@182 242 string "}"],
adamc@182 243 env)
adamc@182 244 end
adamc@182 245 in
adamc@182 246 (box [string "if",
adamc@182 247 space,
adamc@182 248 string "(disc",
adamc@182 249 string (Int.toString depth),
adamc@198 250 case (dk, po) of
adamc@198 251 (Enum, _) => box [space,
adamc@198 252 string "!=",
adamc@198 253 space,
adamc@198 254 p_patCon env pc]
adamc@198 255 | (Default, _) => box [string "->tag",
adamc@198 256 space,
adamc@198 257 string "!=",
adamc@198 258 space,
adamc@198 259 p_patCon env pc]
adamc@198 260 | (Option, NONE) => box [space,
adamc@198 261 string "!=",
adamc@198 262 space,
adamc@198 263 string "NULL"]
adamc@198 264 | (Option, SOME _) => box [space,
adamc@198 265 string "==",
adamc@198 266 space,
adamc@198 267 string "NULL"],
adamc@182 268 string ")",
adamc@182 269 space,
adamc@182 270 exit,
adamc@182 271 newline,
adamc@182 272 p],
adamc@182 273 env)
adamc@182 274 end
adamc@182 275
adamc@182 276 | PRecord xps =>
adamc@182 277 let
adamc@182 278 val (xps, env) =
adamc@182 279 ListUtil.foldlMap (fn ((x, p, t), env) =>
adamc@182 280 let
adamc@182 281 val (p, env) = p_pat (env, exit, depth + 1) p
adamc@182 282
adamc@182 283 val p = box [string "{",
adamc@182 284 newline,
adamc@182 285 p_typ env t,
adamc@182 286 space,
adamc@182 287 string "disc",
adamc@182 288 string (Int.toString (depth + 1)),
adamc@182 289 space,
adamc@182 290 string "=",
adamc@182 291 space,
adamc@182 292 string "disc",
adamc@182 293 string (Int.toString depth),
adamc@311 294 string ".__uwf_",
adamc@316 295 p_ident x,
adamc@182 296 string ";",
adamc@182 297 newline,
adamc@182 298 p,
adamc@182 299 newline,
adamc@182 300 string "}"]
adamc@182 301 in
adamc@182 302 (p, env)
adamc@182 303 end) env xps
adamc@182 304 in
adamc@182 305 (p_list_sep newline (fn x => x) xps,
adamc@182 306 env)
adamc@182 307 end
adamc@182 308
adamc@288 309 | PNone t =>
adamc@288 310 (box [string "if",
adamc@288 311 space,
adamc@288 312 string "(disc",
adamc@288 313 string (Int.toString depth),
adamc@288 314 space,
adamc@288 315 string "!=",
adamc@288 316 space,
adamc@288 317 string "NULL)",
adamc@288 318 space,
adamc@288 319 exit,
adamc@288 320 newline],
adamc@288 321 env)
adamc@288 322
adamc@288 323 | PSome (t, p) =>
adamc@288 324 let
adamc@288 325 val (p, env) =
adamc@288 326 let
adamc@288 327 val (p, env) = p_pat (env, exit, depth + 1) p
adamc@288 328 in
adamc@288 329 (box [string "{",
adamc@288 330 newline,
adamc@288 331 p_typ env t,
adamc@288 332 space,
adamc@288 333 string "disc",
adamc@288 334 string (Int.toString (depth + 1)),
adamc@288 335 space,
adamc@288 336 string "=",
adamc@288 337 space,
adamc@288 338 case #1 t of
adamc@288 339 TDatatype _ => box [string "disc",
adamc@288 340 string (Int.toString depth)]
adamc@288 341 | TFfi ("Basis", "string") => box [string "disc",
adamc@288 342 string (Int.toString depth)]
adamc@288 343 | _ => box [string "*disc",
adamc@288 344 string (Int.toString depth)],
adamc@288 345 string ";",
adamc@288 346 newline,
adamc@288 347 p,
adamc@288 348 newline,
adamc@288 349 string "}"],
adamc@288 350 env)
adamc@288 351 end
adamc@288 352 in
adamc@288 353 (box [string "if",
adamc@288 354 space,
adamc@288 355 string "(disc",
adamc@288 356 string (Int.toString depth),
adamc@288 357 space,
adamc@288 358 string "==",
adamc@288 359 space,
adamc@288 360 string "NULL)",
adamc@288 361 space,
adamc@288 362 exit,
adamc@288 363 newline,
adamc@288 364 p],
adamc@288 365 env)
adamc@288 366 end
adamc@288 367
adamc@182 368 local
adamc@182 369 val count = ref 0
adamc@182 370 in
adamc@182 371 fun newGoto () =
adamc@182 372 let
adamc@182 373 val r = !count
adamc@182 374 in
adamc@182 375 count := r + 1;
adamc@182 376 string ("L" ^ Int.toString r)
adamc@182 377 end
adamc@182 378 end
adamc@182 379
adamc@185 380 fun patConInfo env pc =
adamc@185 381 case pc of
adamc@185 382 PConVar n =>
adamc@185 383 let
adamc@185 384 val (x, _, dn) = E.lookupConstructor env n
adamc@185 385 val (dx, _) = E.lookupDatatype env dn
adamc@185 386 in
adamc@316 387 ("__uwd_" ^ ident dx ^ "_" ^ Int.toString dn,
adamc@316 388 "__uwc_" ^ ident x ^ "_" ^ Int.toString n,
adamc@316 389 "uw_" ^ ident x)
adamc@185 390 end
adamc@186 391 | PConFfi {mod = m, datatyp, con, ...} =>
adamc@316 392 ("uw_" ^ ident m ^ "_" ^ ident datatyp,
adamc@316 393 "uw_" ^ ident m ^ "_" ^ ident con,
adamc@316 394 "uw_" ^ ident con)
adamc@185 395
adamc@278 396 fun p_unsql env (tAll as (t, loc)) e =
adamc@278 397 case t of
adamc@311 398 TFfi ("Basis", "int") => box [string "uw_Basis_stringToInt_error(ctx, ", e, string ")"]
adamc@311 399 | TFfi ("Basis", "float") => box [string "uw_Basis_stringToFloat_error(ctx, ", e, string ")"]
adamc@311 400 | TFfi ("Basis", "string") => box [string "uw_Basis_strdup(ctx, ", e, string ")"]
adamc@311 401 | TFfi ("Basis", "bool") => box [string "uw_Basis_stringToBool_error(ctx, ", e, string ")"]
adamc@278 402 | _ => (ErrorMsg.errorAt loc "Don't know how to unmarshal type from SQL";
adamc@278 403 Print.eprefaces' [("Type", p_typ env tAll)];
adamc@278 404 string "ERROR")
adamc@278 405
adamc@282 406 datatype sql_type =
adamc@282 407 Int
adamc@282 408 | Float
adamc@282 409 | String
adamc@282 410 | Bool
adamc@282 411
adamc@282 412 fun p_sql_type t =
adamc@282 413 string (case t of
adamc@311 414 Int => "uw_Basis_int"
adamc@311 415 | Float => "uw_Basis_float"
adamc@311 416 | String => "uw_Basis_string"
adamc@311 417 | Bool => "uw_Basis_bool")
adamc@282 418
adamc@282 419 fun getPargs (e, _) =
adamc@282 420 case e of
adamc@282 421 EPrim (Prim.String _) => []
adamc@282 422 | EFfiApp ("Basis", "strcat", [e1, e2]) => getPargs e1 @ getPargs e2
adamc@282 423
adamc@282 424 | EFfiApp ("Basis", "sqlifyInt", [e]) => [(e, Int)]
adamc@282 425 | EFfiApp ("Basis", "sqlifyFloat", [e]) => [(e, Float)]
adamc@282 426 | EFfiApp ("Basis", "sqlifyString", [e]) => [(e, String)]
adamc@282 427 | EFfiApp ("Basis", "sqlifyBool", [e]) => [(e, Bool)]
adamc@322 428 | ECase (e, _, _) => [(e, Bool)]
adamc@282 429
adamc@282 430 | _ => raise Fail "CjrPrint: getPargs"
adamc@282 431
adamc@282 432 fun p_ensql t e =
adamc@282 433 case t of
adamc@311 434 Int => box [string "uw_Basis_attrifyInt(ctx, ", e, string ")"]
adamc@311 435 | Float => box [string "uw_Basis_attrifyFloat(ctx, ", e, string ")"]
adamc@282 436 | String => e
adamc@295 437 | Bool => box [string "(", e, string " ? \"TRUE\" : \"FALSE\")"]
adamc@282 438
adamc@282 439 fun p_ensql_len t e =
adamc@282 440 case t of
adamc@311 441 Int => string "sizeof(uw_Basis_int)"
adamc@311 442 | Float => string "sizeof(uw_Basis_float)"
adamc@282 443 | String => box [string "strlen(", e, string ")"]
adamc@311 444 | Bool => string "sizeof(uw_Basis_bool)"
adamc@282 445
adamc@182 446 fun p_exp' par env (e, loc) =
adamc@29 447 case e of
adamc@276 448 EPrim p => Prim.p_t_GCC p
adamc@29 449 | ERel n => p_rel env n
adamc@109 450 | ENamed n => p_enamed env n
adamc@188 451 | ECon (Enum, pc, _) => p_patCon env pc
adamc@198 452 | ECon (Option, pc, NONE) => string "NULL"
adamc@198 453 | ECon (Option, pc, SOME e) =>
adamc@198 454 let
adamc@198 455 val to = case pc of
adamc@198 456 PConVar n => #2 (E.lookupConstructor env n)
adamc@198 457 | PConFfi {arg, ...} => arg
adamc@198 458
adamc@198 459 val t = case to of
adamc@198 460 NONE => raise Fail "CjrPrint: ECon argument status mismatch"
adamc@198 461 | SOME t => t
adamc@198 462 in
adamc@198 463 case #1 t of
adamc@198 464 TDatatype _ => p_exp' par env e
adamc@199 465 | TFfi ("Basis", "string") => p_exp' par env e
adamc@198 466 | _ => box [string "({",
adamc@198 467 newline,
adamc@198 468 p_typ env t,
adamc@198 469 space,
adamc@198 470 string "*tmp",
adamc@198 471 space,
adamc@198 472 string "=",
adamc@198 473 space,
adamc@311 474 string "uw_malloc(ctx, sizeof(",
adamc@198 475 p_typ env t,
adamc@198 476 string "));",
adamc@198 477 newline,
adamc@198 478 string "*tmp",
adamc@198 479 space,
adamc@198 480 string "=",
adamc@198 481 p_exp' par env e,
adamc@198 482 string ";",
adamc@198 483 newline,
adamc@198 484 string "tmp;",
adamc@198 485 newline,
adamc@198 486 string "})"]
adamc@198 487 end
adamc@188 488 | ECon (Default, pc, eo) =>
adamc@181 489 let
adamc@196 490 val (xd, xc, xn) = patConInfo env pc
adamc@181 491 in
adamc@182 492 box [string "({",
adamc@181 493 newline,
adamc@181 494 string "struct",
adamc@181 495 space,
adamc@185 496 string xd,
adamc@181 497 space,
adamc@181 498 string "*tmp",
adamc@181 499 space,
adamc@181 500 string "=",
adamc@181 501 space,
adamc@311 502 string "uw_malloc(ctx, sizeof(struct ",
adamc@185 503 string xd,
adamc@181 504 string "));",
adamc@181 505 newline,
adamc@181 506 string "tmp->tag",
adamc@181 507 space,
adamc@181 508 string "=",
adamc@181 509 space,
adamc@185 510 string xc,
adamc@181 511 string ";",
adamc@181 512 newline,
adamc@181 513 case eo of
adamc@181 514 NONE => box []
adamc@185 515 | SOME e => box [string "tmp->data.",
adamc@196 516 string xn,
adamc@181 517 space,
adamc@181 518 string "=",
adamc@181 519 space,
adamc@181 520 p_exp env e,
adamc@181 521 string ";",
adamc@181 522 newline],
adamc@181 523 string "tmp;",
adamc@181 524 newline,
adamc@181 525 string "})"]
adamc@181 526 end
adamc@297 527 | ENone _ => string "NULL"
adamc@290 528 | ESome (t, e) =>
adamc@290 529 (case #1 t of
adamc@290 530 TDatatype _ => p_exp' par env e
adamc@290 531 | TFfi ("Basis", "string") => p_exp' par env e
adamc@290 532 | _ => box [string "({",
adamc@290 533 newline,
adamc@290 534 p_typ env t,
adamc@290 535 space,
adamc@290 536 string "*tmp",
adamc@290 537 space,
adamc@290 538 string "=",
adamc@290 539 space,
adamc@311 540 string "uw_malloc(ctx, sizeof(",
adamc@290 541 p_typ env t,
adamc@290 542 string "));",
adamc@290 543 newline,
adamc@290 544 string "*tmp",
adamc@290 545 space,
adamc@290 546 string "=",
adamc@290 547 p_exp' par env e,
adamc@290 548 string ";",
adamc@290 549 newline,
adamc@290 550 string "tmp;",
adamc@290 551 newline,
adamc@290 552 string "})"])
adamc@109 553
adamc@316 554 | EFfi (m, x) => box [string "uw_", p_ident m, string "_", p_ident x]
adamc@283 555 | EError (e, t) =>
adamc@283 556 box [string "({",
adamc@283 557 newline,
adamc@283 558 p_typ env t,
adamc@283 559 space,
adamc@283 560 string "tmp;",
adamc@283 561 newline,
adamc@311 562 string "uw_error(ctx, FATAL, \"",
adamc@292 563 string (ErrorMsg.spanToString loc),
adamc@292 564 string ": %s\", ",
adamc@283 565 p_exp env e,
adamc@283 566 string ");",
adamc@283 567 newline,
adamc@283 568 string "tmp;",
adamc@283 569 newline,
adamc@283 570 string "})"]
adamc@311 571 | EFfiApp (m, x, es) => box [string "uw_",
adamc@316 572 p_ident m,
adamc@53 573 string "_",
adamc@316 574 p_ident x,
adamc@117 575 string "(ctx, ",
adamc@53 576 p_list (p_exp env) es,
adamc@53 577 string ")"]
adamc@316 578 | EApp (f, args) =>
adamc@316 579 parenIf par (box [p_exp' true env f,
adamc@316 580 string "(ctx,",
adamc@316 581 space,
adamc@316 582 p_list_sep (box [string ",", space]) (p_exp env) args,
adamc@316 583 string ")"])
adamc@29 584
adamc@29 585 | ERecord (i, xes) => box [string "({",
adamc@29 586 space,
adamc@29 587 string "struct",
adamc@29 588 space,
adamc@311 589 string ("__uws_" ^ Int.toString i),
adamc@29 590 space,
adamc@181 591 string "tmp",
adamc@29 592 space,
adamc@29 593 string "=",
adamc@29 594 space,
adamc@29 595 string "{",
adamc@29 596 p_list (fn (_, e) =>
adamc@29 597 p_exp env e) xes,
adamc@29 598 string "};",
adamc@29 599 space,
adamc@181 600 string "tmp;",
adamc@29 601 space,
adamc@29 602 string "})" ]
adamc@29 603 | EField (e, x) =>
adamc@29 604 box [p_exp' true env e,
adamc@311 605 string ".__uwf_",
adamc@316 606 p_ident x]
adamc@29 607
adamc@182 608 | ECase (e, pes, {disc, result}) =>
adamc@182 609 let
adamc@182 610 val final = newGoto ()
adamc@182 611
adamc@182 612 val body = foldl (fn ((p, e), body) =>
adamc@182 613 let
adamc@182 614 val exit = newGoto ()
adamc@182 615 val (pr, _) = p_pat_preamble env p
adamc@182 616 val (p, env) = p_pat (env,
adamc@182 617 box [string "goto",
adamc@182 618 space,
adamc@182 619 exit,
adamc@182 620 string ";"],
adamc@182 621 0) p
adamc@182 622 in
adamc@182 623 box [body,
adamc@182 624 box [string "{",
adamc@182 625 newline,
adamc@182 626 pr,
adamc@182 627 newline,
adamc@182 628 p,
adamc@182 629 newline,
adamc@182 630 string "result",
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 string "goto",
adamc@182 638 space,
adamc@182 639 final,
adamc@182 640 string ";",
adamc@182 641 newline,
adamc@182 642 string "}"],
adamc@182 643 newline,
adamc@182 644 exit,
adamc@182 645 string ":",
adamc@182 646 newline]
adamc@182 647 end) (box []) pes
adamc@182 648 in
adamc@182 649 box [string "({",
adamc@182 650 newline,
adamc@182 651 p_typ env disc,
adamc@182 652 space,
adamc@182 653 string "disc0",
adamc@182 654 space,
adamc@182 655 string "=",
adamc@182 656 space,
adamc@182 657 p_exp env e,
adamc@182 658 string ";",
adamc@182 659 newline,
adamc@182 660 p_typ env result,
adamc@182 661 space,
adamc@182 662 string "result;",
adamc@182 663 newline,
adamc@182 664 body,
adamc@311 665 string "uw_error(ctx, FATAL, \"",
adamc@182 666 string (ErrorMsg.spanToString loc),
adamc@182 667 string ": pattern match failure\");",
adamc@182 668 newline,
adamc@182 669 final,
adamc@182 670 string ":",
adamc@182 671 space,
adamc@182 672 string "result;",
adamc@182 673 newline,
adamc@182 674 string "})"]
adamc@182 675 end
adamc@181 676
adamc@311 677 | EWrite e => box [string "(uw_write(ctx, ",
adamc@102 678 p_exp env e,
adamc@311 679 string "), uw_unit_v)"]
adamc@102 680
adamc@106 681 | ESeq (e1, e2) => box [string "(",
adamc@106 682 p_exp env e1,
adamc@106 683 string ",",
adamc@106 684 space,
adamc@106 685 p_exp env e2,
adamc@106 686 string ")"]
adamc@269 687 | ELet (x, t, e1, e2) => box [string "({",
adamc@269 688 newline,
adamc@269 689 p_typ env t,
adamc@269 690 space,
adamc@311 691 string "__uwr_",
adamc@316 692 p_ident x,
adamc@272 693 string "_",
adamc@272 694 string (Int.toString (E.countERels env)),
adamc@269 695 space,
adamc@269 696 string "=",
adamc@269 697 space,
adamc@269 698 p_exp env e1,
adamc@269 699 string ";",
adamc@269 700 newline,
adamc@269 701 p_exp (E.pushERel env x t) e2,
adamc@269 702 string ";",
adamc@269 703 newline,
adamc@269 704 string "})"]
adamc@269 705
adamc@282 706 | EQuery {exps, tables, rnum, state, query, body, initial, prepared} =>
adamc@278 707 let
adamc@316 708 val exps = map (fn (x, t) => ("__uwf_" ^ ident x, t)) exps
adamc@278 709 val tables = ListUtil.mapConcat (fn (x, xts) =>
adamc@316 710 map (fn (x', t) => ("__uwf_" ^ ident x ^ ".__uwf_" ^ ident x', t)) xts)
adamc@278 711 tables
adamc@278 712
adamc@278 713 val outputs = exps @ tables
adamc@278 714 in
adamc@278 715 box [string "({",
adamc@278 716 newline,
adamc@311 717 string "PGconn *conn = uw_get_db(ctx);",
adamc@278 718 newline,
adamc@282 719 case prepared of
adamc@282 720 NONE => box [string "char *query = ",
adamc@282 721 p_exp env query,
adamc@282 722 string ";",
adamc@282 723 newline]
adamc@282 724 | SOME _ =>
adamc@282 725 let
adamc@282 726 val ets = getPargs query
adamc@282 727 in
adamc@282 728 box [p_list_sepi newline
adamc@282 729 (fn i => fn (e, t) =>
adamc@282 730 box [p_sql_type t,
adamc@282 731 space,
adamc@282 732 string "arg",
adamc@282 733 string (Int.toString (i + 1)),
adamc@282 734 space,
adamc@282 735 string "=",
adamc@282 736 space,
adamc@282 737 p_exp env e,
adamc@282 738 string ";"])
adamc@282 739 ets,
adamc@282 740 newline,
adamc@282 741 newline,
adamc@282 742
adamc@282 743 string "const char *paramValues[] = { ",
adamc@282 744 p_list_sepi (box [string ",", space])
adamc@282 745 (fn i => fn (_, t) => p_ensql t (box [string "arg",
adamc@282 746 string (Int.toString (i + 1))]))
adamc@282 747 ets,
adamc@282 748 string " };",
adamc@282 749 newline,
adamc@282 750 newline]
adamc@282 751 end,
adamc@278 752 string "int n, i;",
adamc@278 753 newline,
adamc@278 754 p_typ env state,
adamc@278 755 space,
adamc@278 756 string "acc",
adamc@278 757 space,
adamc@278 758 string "=",
adamc@278 759 space,
adamc@278 760 p_exp env initial,
adamc@278 761 string ";",
adamc@278 762 newline,
adamc@282 763 string "PGresult *res = ",
adamc@282 764 case prepared of
adamc@295 765 NONE => string "PQexecParams(conn, query, 0, NULL, NULL, NULL, NULL, 0);"
adamc@311 766 | SOME n => box [string "PQexecPrepared(conn, \"uw",
adamc@282 767 string (Int.toString n),
adamc@282 768 string "\", ",
adamc@282 769 string (Int.toString (length (getPargs query))),
adamc@295 770 string ", paramValues, NULL, NULL, 0);"],
adamc@278 771 newline,
adamc@278 772 newline,
adamc@277 773
adamc@311 774 string "if (res == NULL) uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@278 775 newline,
adamc@278 776 newline,
adamc@277 777
adamc@278 778 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@278 779 newline,
adamc@278 780 box [string "PQclear(res);",
adamc@278 781 newline,
adamc@311 782 string "uw_error(ctx, FATAL, \"",
adamc@278 783 string (ErrorMsg.spanToString loc),
adamc@282 784 string ": Query failed:\\n%s\\n%s\", ",
adamc@282 785 case prepared of
adamc@282 786 NONE => string "query"
adamc@282 787 | SOME _ => p_exp env query,
adamc@282 788 string ", PQerrorMessage(conn));",
adamc@278 789 newline],
adamc@278 790 string "}",
adamc@278 791 newline,
adamc@278 792 newline,
adamc@277 793
adamc@278 794 string "n = PQntuples(res);",
adamc@278 795 newline,
adamc@278 796 string "for (i = 0; i < n; ++i) {",
adamc@278 797 newline,
adamc@278 798 box [string "struct",
adamc@278 799 space,
adamc@311 800 string "__uws_",
adamc@278 801 string (Int.toString rnum),
adamc@278 802 space,
adamc@311 803 string "__uwr_r_",
adamc@278 804 string (Int.toString (E.countERels env)),
adamc@278 805 string ";",
adamc@278 806 newline,
adamc@278 807 p_typ env state,
adamc@278 808 space,
adamc@311 809 string "__uwr_acc_",
adamc@278 810 string (Int.toString (E.countERels env + 1)),
adamc@278 811 space,
adamc@278 812 string "=",
adamc@278 813 space,
adamc@278 814 string "acc;",
adamc@278 815 newline,
adamc@278 816 newline,
adamc@278 817
adamc@278 818 p_list_sepi (box []) (fn i =>
adamc@278 819 fn (proj, t) =>
adamc@311 820 box [string "__uwr_r_",
adamc@278 821 string (Int.toString (E.countERels env)),
adamc@278 822 string ".",
adamc@278 823 string proj,
adamc@278 824 space,
adamc@278 825 string "=",
adamc@278 826 space,
adamc@278 827 p_unsql env t
adamc@278 828 (box [string "PQgetvalue(res, i, ",
adamc@278 829 string (Int.toString i),
adamc@278 830 string ")"]),
adamc@278 831 string ";",
adamc@278 832 newline]) outputs,
adamc@278 833
adamc@278 834 newline,
adamc@278 835 newline,
adamc@278 836
adamc@278 837 string "acc",
adamc@278 838 space,
adamc@278 839 string "=",
adamc@278 840 space,
adamc@278 841 p_exp (E.pushERel
adamc@278 842 (E.pushERel env "r" (TRecord rnum, loc))
adamc@278 843 "acc" state)
adamc@278 844 body,
adamc@278 845 string ";",
adamc@278 846 newline],
adamc@278 847 string "}",
adamc@278 848 newline,
adamc@278 849 newline,
adamc@278 850 string "PQclear(res);",
adamc@278 851 newline,
adamc@278 852 string "acc;",
adamc@278 853 newline,
adamc@278 854 string "})"]
adamc@278 855 end
adamc@106 856
adamc@307 857 | EDml {dml, prepared} =>
adamc@307 858 box [string "({",
adamc@307 859 newline,
adamc@311 860 string "PGconn *conn = uw_get_db(ctx);",
adamc@307 861 newline,
adamc@307 862 case prepared of
adamc@307 863 NONE => box [string "char *dml = ",
adamc@307 864 p_exp env dml,
adamc@307 865 string ";",
adamc@307 866 newline]
adamc@307 867 | SOME _ =>
adamc@307 868 let
adamc@307 869 val ets = getPargs dml
adamc@307 870 in
adamc@307 871 box [p_list_sepi newline
adamc@307 872 (fn i => fn (e, t) =>
adamc@307 873 box [p_sql_type t,
adamc@307 874 space,
adamc@307 875 string "arg",
adamc@307 876 string (Int.toString (i + 1)),
adamc@307 877 space,
adamc@307 878 string "=",
adamc@307 879 space,
adamc@307 880 p_exp env e,
adamc@307 881 string ";"])
adamc@307 882 ets,
adamc@307 883 newline,
adamc@307 884 newline,
adamc@307 885
adamc@307 886 string "const char *paramValues[] = { ",
adamc@307 887 p_list_sepi (box [string ",", space])
adamc@307 888 (fn i => fn (_, t) => p_ensql t (box [string "arg",
adamc@307 889 string (Int.toString (i + 1))]))
adamc@307 890 ets,
adamc@307 891 string " };",
adamc@307 892 newline,
adamc@307 893 newline]
adamc@307 894 end,
adamc@307 895 newline,
adamc@307 896 newline,
adamc@307 897 string "PGresult *res = ",
adamc@307 898 case prepared of
adamc@307 899 NONE => string "PQexecParams(conn, dml, 0, NULL, NULL, NULL, NULL, 0);"
adamc@311 900 | SOME n => box [string "PQexecPrepared(conn, \"uw",
adamc@307 901 string (Int.toString n),
adamc@307 902 string "\", ",
adamc@307 903 string (Int.toString (length (getPargs dml))),
adamc@307 904 string ", paramValues, NULL, NULL, 0);"],
adamc@307 905 newline,
adamc@307 906 newline,
adamc@307 907
adamc@311 908 string "if (res == NULL) uw_error(ctx, FATAL, \"Out of memory allocating DML result.\");",
adamc@307 909 newline,
adamc@307 910 newline,
adamc@307 911
adamc@307 912 string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@307 913 newline,
adamc@307 914 box [string "PQclear(res);",
adamc@307 915 newline,
adamc@311 916 string "uw_error(ctx, FATAL, \"",
adamc@307 917 string (ErrorMsg.spanToString loc),
adamc@307 918 string ": DML failed:\\n%s\\n%s\", ",
adamc@307 919 case prepared of
adamc@307 920 NONE => string "dml"
adamc@307 921 | SOME _ => p_exp env dml,
adamc@307 922 string ", PQerrorMessage(conn));",
adamc@307 923 newline],
adamc@307 924 string "}",
adamc@307 925 newline,
adamc@307 926 newline,
adamc@307 927
adamc@307 928 string "PQclear(res);",
adamc@307 929 newline,
adamc@311 930 string "uw_unit_v;",
adamc@307 931 newline,
adamc@307 932 string "})"]
adamc@307 933
adamc@29 934 and p_exp env = p_exp' false env
adamc@29 935
adamc@129 936 fun p_fun env (fx, n, args, ran, e) =
adamc@129 937 let
adamc@129 938 val nargs = length args
adamc@129 939 val env' = foldl (fn ((x, dom), env) => E.pushERel env x dom) env args
adamc@129 940 in
adamc@129 941 box [string "static",
adamc@129 942 space,
adamc@129 943 p_typ env ran,
adamc@129 944 space,
adamc@316 945 string ("__uwn_" ^ ident fx ^ "_" ^ Int.toString n),
adamc@129 946 string "(",
adamc@129 947 p_list_sep (box [string ",", space]) (fn x => x)
adamc@311 948 (string "uw_context ctx" :: ListUtil.mapi (fn (i, (_, dom)) =>
adamc@129 949 box [p_typ env dom,
adamc@129 950 space,
adamc@129 951 p_rel env' (nargs - i - 1)]) args),
adamc@129 952 string ")",
adamc@129 953 space,
adamc@129 954 string "{",
adamc@129 955 newline,
adamc@129 956 box[string "return(",
adamc@129 957 p_exp env' e,
adamc@129 958 string ");"],
adamc@129 959 newline,
adamc@129 960 string "}"]
adamc@129 961 end
adamc@129 962
adamc@129 963 fun p_decl env (dAll as (d, _) : decl) =
adamc@29 964 case d of
adamc@29 965 DStruct (n, xts) =>
adamc@196 966 let
adamc@196 967 val env = E.declBinds env dAll
adamc@196 968 in
adamc@196 969 box [string "struct",
adamc@196 970 space,
adamc@311 971 string ("__uws_" ^ Int.toString n),
adamc@196 972 space,
adamc@196 973 string "{",
adamc@196 974 newline,
adamc@196 975 p_list_sep (box []) (fn (x, t) => box [p_typ env t,
adamc@196 976 space,
adamc@311 977 string "__uwf_",
adamc@316 978 p_ident x,
adamc@196 979 string ";",
adamc@196 980 newline]) xts,
adamc@196 981 string "};"]
adamc@196 982 end
adamc@188 983 | DDatatype (Enum, x, n, xncs) =>
adamc@188 984 box [string "enum",
adamc@188 985 space,
adamc@316 986 string ("__uwe_" ^ ident x ^ "_" ^ Int.toString n),
adamc@188 987 space,
adamc@188 988 string "{",
adamc@188 989 space,
adamc@316 990 p_list_sep (box [string ",", space]) (fn (x, n, _) =>
adamc@316 991 string ("__uwc_" ^ ident x ^ "_" ^ Int.toString n)) xncs,
adamc@188 992 space,
adamc@188 993 string "};"]
adamc@198 994 | DDatatype (Option, _, _, _) => box []
adamc@188 995 | DDatatype (Default, x, n, xncs) =>
adamc@165 996 let
adamc@165 997 val xncsArgs = List.mapPartial (fn (x, n, NONE) => NONE
adamc@165 998 | (x, n, SOME t) => SOME (x, n, t)) xncs
adamc@165 999 in
adamc@165 1000 box [string "enum",
adamc@165 1001 space,
adamc@316 1002 string ("__uwe_" ^ ident x ^ "_" ^ Int.toString n),
adamc@165 1003 space,
adamc@165 1004 string "{",
adamc@165 1005 space,
adamc@316 1006 p_list_sep (box [string ",", space]) (fn (x, n, _) =>
adamc@316 1007 string ("__uwc_" ^ ident x ^ "_" ^ Int.toString n)) xncs,
adamc@165 1008 space,
adamc@165 1009 string "};",
adamc@165 1010 newline,
adamc@165 1011 newline,
adamc@165 1012 string "struct",
adamc@165 1013 space,
adamc@316 1014 string ("__uwd_" ^ ident x ^ "_" ^ Int.toString n),
adamc@165 1015 space,
adamc@165 1016 string "{",
adamc@165 1017 newline,
adamc@165 1018 string "enum",
adamc@165 1019 space,
adamc@316 1020 string ("__uwe_" ^ ident x ^ "_" ^ Int.toString n),
adamc@165 1021 space,
adamc@165 1022 string "tag;",
adamc@165 1023 newline,
adamc@165 1024 box (case xncsArgs of
adamc@165 1025 [] => []
adamc@165 1026 | _ => [string "union",
adamc@165 1027 space,
adamc@165 1028 string "{",
adamc@165 1029 newline,
adamc@165 1030 p_list_sep newline (fn (x, n, t) => box [p_typ env t,
adamc@165 1031 space,
adamc@316 1032 string ("uw_" ^ ident x),
adamc@165 1033 string ";"]) xncsArgs,
adamc@165 1034 newline,
adamc@165 1035 string "}",
adamc@165 1036 space,
adamc@165 1037 string "data;",
adamc@165 1038 newline]),
adamc@165 1039 string "};"]
adamc@188 1040 end
adamc@29 1041
adamc@196 1042 | DDatatypeForward _ => box []
adamc@196 1043
adamc@29 1044 | DVal (x, n, t, e) =>
adamc@29 1045 box [p_typ env t,
adamc@29 1046 space,
adamc@316 1047 string ("__uwn_" ^ ident x ^ "_" ^ Int.toString n),
adamc@29 1048 space,
adamc@29 1049 string "=",
adamc@29 1050 space,
adamc@29 1051 p_exp env e,
adamc@29 1052 string ";"]
adamc@129 1053 | DFun vi => p_fun env vi
adamc@129 1054 | DFunRec vis =>
adamc@29 1055 let
adamc@129 1056 val env = E.declBinds env dAll
adamc@29 1057 in
adamc@129 1058 box [p_list_sep newline (fn (fx, n, args, ran, _) =>
adamc@129 1059 box [string "static",
adamc@129 1060 space,
adamc@129 1061 p_typ env ran,
adamc@129 1062 space,
adamc@316 1063 string ("__uwn_" ^ ident fx ^ "_" ^ Int.toString n),
adamc@311 1064 string "(uw_context,",
adamc@129 1065 space,
adamc@129 1066 p_list_sep (box [string ",", space])
adamc@129 1067 (fn (_, dom) => p_typ env dom) args,
adamc@129 1068 string ");"]) vis,
adamc@29 1069 newline,
adamc@129 1070 p_list_sep newline (p_fun env) vis,
adamc@129 1071 newline]
adamc@29 1072 end
adamc@273 1073 | DTable (x, _) => box [string "/* SQL table ",
adamc@273 1074 string x,
adamc@273 1075 string " */",
adamc@273 1076 newline]
adamc@311 1077 | DDatabase s => box [string "static void uw_db_validate(uw_context);",
adamc@272 1078 newline,
adamc@311 1079 string "static void uw_db_prepare(uw_context);",
adamc@282 1080 newline,
adamc@275 1081 newline,
adamc@311 1082 string "void uw_db_init(uw_context ctx) {",
adamc@273 1083 newline,
adamc@272 1084 string "PGconn *conn = PQconnectdb(\"",
adamc@272 1085 string (String.toString s),
adamc@272 1086 string "\");",
adamc@272 1087 newline,
adamc@311 1088 string "if (conn == NULL) uw_error(ctx, BOUNDED_RETRY, ",
adamc@272 1089 string "\"libpq can't allocate a connection.\");",
adamc@272 1090 newline,
adamc@272 1091 string "if (PQstatus(conn) != CONNECTION_OK) {",
adamc@272 1092 newline,
adamc@272 1093 box [string "char msg[1024];",
adamc@272 1094 newline,
adamc@272 1095 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@272 1096 newline,
adamc@272 1097 string "msg[1023] = 0;",
adamc@272 1098 newline,
adamc@272 1099 string "PQfinish(conn);",
adamc@272 1100 newline,
adamc@311 1101 string "uw_error(ctx, BOUNDED_RETRY, ",
adamc@272 1102 string "\"Connection to Postgres server failed: %s\", msg);"],
adamc@272 1103 newline,
adamc@272 1104 string "}",
adamc@272 1105 newline,
adamc@311 1106 string "uw_set_db(ctx, conn);",
adamc@272 1107 newline,
adamc@311 1108 string "uw_db_validate(ctx);",
adamc@275 1109 newline,
adamc@311 1110 string "uw_db_prepare(ctx);",
adamc@282 1111 newline,
adamc@272 1112 string "}",
adamc@272 1113 newline,
adamc@272 1114 newline,
adamc@311 1115 string "void uw_db_close(uw_context ctx) {",
adamc@272 1116 newline,
adamc@311 1117 string "PQfinish(uw_get_db(ctx));",
adamc@272 1118 newline,
adamc@272 1119 string "}",
adamc@272 1120 newline]
adamc@29 1121
adamc@282 1122 | DPreparedStatements ss =>
adamc@311 1123 box [string "static void uw_db_prepare(uw_context ctx) {",
adamc@282 1124 newline,
adamc@311 1125 string "PGconn *conn = uw_get_db(ctx);",
adamc@282 1126 newline,
adamc@282 1127 string "PGresult *res;",
adamc@282 1128 newline,
adamc@282 1129 newline,
adamc@282 1130
adamc@282 1131 p_list_sepi newline (fn i => fn (s, n) =>
adamc@311 1132 box [string "res = PQprepare(conn, \"uw",
adamc@282 1133 string (Int.toString i),
adamc@282 1134 string "\", \"",
adamc@282 1135 string (String.toString s),
adamc@282 1136 string "\", ",
adamc@282 1137 string (Int.toString n),
adamc@282 1138 string ", NULL);",
adamc@282 1139 newline,
adamc@282 1140 string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@282 1141 newline,
adamc@282 1142 box [string "char msg[1024];",
adamc@282 1143 newline,
adamc@282 1144 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@282 1145 newline,
adamc@282 1146 string "msg[1023] = 0;",
adamc@282 1147 newline,
adamc@282 1148 string "PQclear(res);",
adamc@282 1149 newline,
adamc@282 1150 string "PQfinish(conn);",
adamc@282 1151 newline,
adamc@311 1152 string "uw_error(ctx, FATAL, \"Unable to create prepared statement:\\n",
adamc@282 1153 string (String.toString s),
adamc@282 1154 string "\\n%s\", msg);",
adamc@282 1155 newline],
adamc@282 1156 string "}",
adamc@282 1157 newline,
adamc@282 1158 string "PQclear(res);",
adamc@282 1159 newline])
adamc@282 1160 ss,
adamc@282 1161
adamc@282 1162 string "}"]
adamc@282 1163
adamc@144 1164 datatype 'a search =
adamc@144 1165 Found of 'a
adamc@144 1166 | NotFound
adamc@144 1167 | Error
adamc@120 1168
adamc@275 1169 fun p_sqltype' env (tAll as (t, loc)) =
adamc@275 1170 case t of
adamc@275 1171 TFfi ("Basis", "int") => "int8"
adamc@275 1172 | TFfi ("Basis", "float") => "float8"
adamc@275 1173 | TFfi ("Basis", "string") => "text"
adamc@275 1174 | TFfi ("Basis", "bool") => "bool"
adamc@275 1175 | _ => (ErrorMsg.errorAt loc "Don't know SQL equivalent of type";
adamc@275 1176 Print.eprefaces' [("Type", p_typ env tAll)];
adamc@275 1177 "ERROR")
adamc@275 1178
adamc@275 1179 fun p_sqltype env t = string (p_sqltype' env t)
adamc@101 1180
adamc@101 1181 fun p_file env (ds, ps) =
adamc@29 1182 let
adamc@101 1183 val (pds, env) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 1184 (p_decl env d,
adamc@31 1185 E.declBinds env d))
adamc@101 1186 env ds
adamc@144 1187
adamc@144 1188 val fields = foldl (fn ((ek, _, _, ts), fields) =>
adamc@144 1189 case ek of
adamc@144 1190 Core.Link => fields
adamc@144 1191 | Core.Action =>
adamc@280 1192 case List.nth (ts, length ts - 2) of
adamc@144 1193 (TRecord i, _) =>
adamc@144 1194 let
adamc@144 1195 val xts = E.lookupStruct env i
adamc@144 1196 val xtsSet = SS.addList (SS.empty, map #1 xts)
adamc@144 1197 in
adamc@144 1198 foldl (fn ((x, _), fields) =>
adamc@144 1199 let
adamc@144 1200 val xtsSet' = Option.getOpt (SM.find (fields, x), SS.empty)
adamc@144 1201 in
adamc@144 1202 SM.insert (fields, x, SS.union (SS.delete (xtsSet, x),
adamc@144 1203 xtsSet'))
adamc@144 1204 end) fields xts
adamc@144 1205 end
adamc@144 1206 | _ => raise Fail "CjrPrint: Last argument of action isn't record")
adamc@144 1207 SM.empty ps
adamc@144 1208
adamc@144 1209 val fnums = SM.foldli (fn (x, xs, fnums) =>
adamc@144 1210 let
adamc@144 1211 val unusable = SS.foldl (fn (x', unusable) =>
adamc@144 1212 case SM.find (fnums, x') of
adamc@144 1213 NONE => unusable
adamc@144 1214 | SOME n => IS.add (unusable, n))
adamc@144 1215 IS.empty xs
adamc@144 1216
adamc@144 1217 fun findAvailable n =
adamc@144 1218 if IS.member (unusable, n) then
adamc@144 1219 findAvailable (n + 1)
adamc@144 1220 else
adamc@144 1221 n
adamc@144 1222 in
adamc@144 1223 SM.insert (fnums, x, findAvailable 0)
adamc@144 1224 end)
adamc@144 1225 SM.empty fields
adamc@144 1226
adamc@144 1227 fun makeSwitch (fnums, i) =
adamc@144 1228 case SM.foldl (fn (n, NotFound) => Found n
adamc@144 1229 | (n, Error) => Error
adamc@144 1230 | (n, Found n') => if n = n' then
adamc@144 1231 Found n'
adamc@144 1232 else
adamc@144 1233 Error) NotFound fnums of
adamc@144 1234 NotFound => box [string "return",
adamc@144 1235 space,
adamc@144 1236 string "-1;"]
adamc@144 1237 | Found n => box [string "return",
adamc@144 1238 space,
adamc@144 1239 string (Int.toString n),
adamc@144 1240 string ";"]
adamc@144 1241 | Error =>
adamc@144 1242 let
adamc@144 1243 val cmap = SM.foldli (fn (x, n, cmap) =>
adamc@144 1244 let
adamc@144 1245 val ch = if i < size x then
adamc@144 1246 String.sub (x, i)
adamc@144 1247 else
adamc@144 1248 chr 0
adamc@144 1249
adamc@144 1250 val fnums = case CM.find (cmap, ch) of
adamc@144 1251 NONE => SM.empty
adamc@144 1252 | SOME fnums => fnums
adamc@144 1253 val fnums = SM.insert (fnums, x, n)
adamc@144 1254 in
adamc@144 1255 CM.insert (cmap, ch, fnums)
adamc@144 1256 end)
adamc@144 1257 CM.empty fnums
adamc@144 1258
adamc@144 1259 val cmap = CM.listItemsi cmap
adamc@144 1260 in
adamc@144 1261 case cmap of
adamc@144 1262 [(_, fnums)] =>
adamc@144 1263 box [string "if",
adamc@144 1264 space,
adamc@144 1265 string "(name[",
adamc@144 1266 string (Int.toString i),
adamc@144 1267 string "]",
adamc@144 1268 space,
adamc@144 1269 string "==",
adamc@144 1270 space,
adamc@144 1271 string "0)",
adamc@144 1272 space,
adamc@144 1273 string "return",
adamc@144 1274 space,
adamc@144 1275 string "-1;",
adamc@144 1276 newline,
adamc@144 1277 makeSwitch (fnums, i+1)]
adamc@144 1278 | _ =>
adamc@144 1279 box [string "switch",
adamc@144 1280 space,
adamc@144 1281 string "(name[",
adamc@144 1282 string (Int.toString i),
adamc@144 1283 string "])",
adamc@144 1284 space,
adamc@144 1285 string "{",
adamc@144 1286 newline,
adamc@144 1287 box (map (fn (ch, fnums) =>
adamc@144 1288 box [string "case",
adamc@144 1289 space,
adamc@144 1290 if ch = chr 0 then
adamc@144 1291 string "0:"
adamc@144 1292 else
adamc@144 1293 box [string "'",
adamc@144 1294 string (Char.toString ch),
adamc@144 1295 string "':"],
adamc@144 1296 newline,
adamc@144 1297 makeSwitch (fnums, i+1),
adamc@144 1298 newline]) cmap),
adamc@144 1299 string "default:",
adamc@144 1300 newline,
adamc@144 1301 string "return",
adamc@144 1302 space,
adamc@144 1303 string "-1;",
adamc@144 1304 newline,
adamc@144 1305 string "}"]
adamc@144 1306 end
adamc@144 1307
adamc@186 1308 fun capitalize s =
adamc@186 1309 if s = "" then
adamc@186 1310 ""
adamc@186 1311 else
adamc@186 1312 str (Char.toUpper (String.sub (s, 0))) ^ String.extract (s, 1, NONE)
adamc@186 1313
adamc@144 1314 fun unurlify (t, loc) =
adamc@144 1315 case t of
adamc@316 1316 TFfi (m, t) => string ("uw_" ^ ident m ^ "_unurlify" ^ capitalize t ^ "(ctx, &request)")
adamc@144 1317
adamc@311 1318 | TRecord 0 => string "uw_unit_v"
adamc@144 1319 | TRecord i =>
adamc@144 1320 let
adamc@144 1321 val xts = E.lookupStruct env i
adamc@144 1322 in
adamc@144 1323 box [string "({",
adamc@144 1324 newline,
adamc@144 1325 box (map (fn (x, t) =>
adamc@144 1326 box [p_typ env t,
adamc@144 1327 space,
adamc@144 1328 string x,
adamc@144 1329 space,
adamc@144 1330 string "=",
adamc@144 1331 space,
adamc@144 1332 unurlify t,
adamc@144 1333 string ";",
adamc@144 1334 newline]) xts),
adamc@144 1335 string "struct",
adamc@144 1336 space,
adamc@311 1337 string "__uws_",
adamc@144 1338 string (Int.toString i),
adamc@144 1339 space,
adamc@181 1340 string "tmp",
adamc@144 1341 space,
adamc@144 1342 string "=",
adamc@144 1343 space,
adamc@144 1344 string "{",
adamc@144 1345 space,
adamc@144 1346 p_list_sep (box [string ",", space]) (fn (x, _) => string x) xts,
adamc@144 1347 space,
adamc@144 1348 string "};",
adamc@144 1349 newline,
adamc@181 1350 string "tmp;",
adamc@144 1351 newline,
adamc@144 1352 string "})"]
adamc@144 1353 end
adamc@144 1354
adamc@188 1355 | TDatatype (Enum, i, _) =>
adamc@188 1356 let
adamc@188 1357 val (x, xncs) = E.lookupDatatype env i
adamc@188 1358
adamc@188 1359 fun doEm xncs =
adamc@188 1360 case xncs of
adamc@311 1361 [] => string ("(uw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), (enum __uwe_"
adamc@188 1362 ^ x ^ "_" ^ Int.toString i ^ ")0)")
adamc@188 1363 | (x', n, to) :: rest =>
adamc@188 1364 box [string "((!strncmp(request, \"",
adamc@188 1365 string x',
adamc@188 1366 string "\", ",
adamc@188 1367 string (Int.toString (size x')),
adamc@188 1368 string ") && (request[",
adamc@188 1369 string (Int.toString (size x')),
adamc@188 1370 string "] == 0 || request[",
adamc@188 1371 string (Int.toString (size x')),
adamc@316 1372 string ("] == '/')) ? __uwc_" ^ ident x' ^ "_" ^ Int.toString n),
adamc@188 1373 space,
adamc@188 1374 string ":",
adamc@188 1375 space,
adamc@188 1376 doEm rest,
adamc@188 1377 string ")"]
adamc@188 1378 in
adamc@188 1379 doEm xncs
adamc@188 1380 end
adamc@188 1381
adamc@198 1382 | TDatatype (Option, i, xncs) =>
adamc@198 1383 let
adamc@198 1384 val (x, _) = E.lookupDatatype env i
adamc@198 1385
adamc@198 1386 val (no_arg, has_arg, t) =
adamc@198 1387 case !xncs of
adamc@198 1388 [(no_arg, _, NONE), (has_arg, _, SOME t)] =>
adamc@198 1389 (no_arg, has_arg, t)
adamc@198 1390 | [(has_arg, _, SOME t), (no_arg, _, NONE)] =>
adamc@198 1391 (no_arg, has_arg, t)
adamc@198 1392 | _ => raise Fail "CjrPrint: unfooify misclassified Option datatype"
adamc@198 1393 in
adamc@198 1394 box [string "(request[0] == '/' ? ++request : request,",
adamc@198 1395 newline,
adamc@198 1396 string "((!strncmp(request, \"",
adamc@198 1397 string no_arg,
adamc@198 1398 string "\", ",
adamc@198 1399 string (Int.toString (size no_arg)),
adamc@198 1400 string ") && (request[",
adamc@198 1401 string (Int.toString (size no_arg)),
adamc@198 1402 string "] == 0 || request[",
adamc@198 1403 string (Int.toString (size no_arg)),
adamc@198 1404 string "] == '/')) ? (request",
adamc@198 1405 space,
adamc@198 1406 string "+=",
adamc@198 1407 space,
adamc@198 1408 string (Int.toString (size no_arg)),
adamc@198 1409 string ", NULL) : ((!strncmp(request, \"",
adamc@198 1410 string has_arg,
adamc@198 1411 string "\", ",
adamc@198 1412 string (Int.toString (size has_arg)),
adamc@198 1413 string ") && (request[",
adamc@198 1414 string (Int.toString (size has_arg)),
adamc@198 1415 string "] == 0 || request[",
adamc@198 1416 string (Int.toString (size has_arg)),
adamc@198 1417 string "] == '/')) ? (request",
adamc@198 1418 space,
adamc@198 1419 string "+=",
adamc@198 1420 space,
adamc@198 1421 string (Int.toString (size has_arg)),
adamc@200 1422 string ", (request[0] == '/' ? ++request : NULL), ",
adamc@200 1423 newline,
adamc@198 1424
adamc@198 1425 case #1 t of
adamc@198 1426 TDatatype _ => unurlify t
adamc@199 1427 | TFfi ("Basis", "string") => unurlify t
adamc@198 1428 | _ => box [string "({",
adamc@198 1429 newline,
adamc@198 1430 p_typ env t,
adamc@198 1431 space,
adamc@198 1432 string "*tmp",
adamc@198 1433 space,
adamc@198 1434 string "=",
adamc@198 1435 space,
adamc@311 1436 string "uw_malloc(ctx, sizeof(",
adamc@198 1437 p_typ env t,
adamc@198 1438 string "));",
adamc@198 1439 newline,
adamc@198 1440 string "*tmp",
adamc@198 1441 space,
adamc@198 1442 string "=",
adamc@198 1443 space,
adamc@198 1444 unurlify t,
adamc@198 1445 string ";",
adamc@198 1446 newline,
adamc@198 1447 string "tmp;",
adamc@198 1448 newline,
adamc@198 1449 string "})"],
adamc@198 1450 string ")",
adamc@198 1451 newline,
adamc@198 1452 string ":",
adamc@198 1453 space,
adamc@311 1454 string ("(uw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), NULL))))")]
adamc@198 1455 end
adamc@198 1456
adamc@188 1457 | TDatatype (Default, i, _) =>
adamc@166 1458 let
adamc@166 1459 val (x, xncs) = E.lookupDatatype env i
adamc@166 1460
adamc@166 1461 fun doEm xncs =
adamc@166 1462 case xncs of
adamc@311 1463 [] => string ("(uw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), NULL)")
adamc@167 1464 | (x', n, to) :: rest =>
adamc@167 1465 box [string "((!strncmp(request, \"",
adamc@167 1466 string x',
adamc@167 1467 string "\", ",
adamc@167 1468 string (Int.toString (size x')),
adamc@167 1469 string ") && (request[",
adamc@167 1470 string (Int.toString (size x')),
adamc@167 1471 string "] == 0 || request[",
adamc@167 1472 string (Int.toString (size x')),
adamc@167 1473 string "] == '/')) ? ({",
adamc@166 1474 newline,
adamc@167 1475 string "struct",
adamc@167 1476 space,
adamc@316 1477 string ("__uwd_" ^ ident x ^ "_" ^ Int.toString i),
adamc@166 1478 space,
adamc@311 1479 string "*tmp = uw_malloc(ctx, sizeof(struct __uwd_",
adamc@167 1480 string x,
adamc@167 1481 string "_",
adamc@167 1482 string (Int.toString i),
adamc@167 1483 string "));",
adamc@166 1484 newline,
adamc@181 1485 string "tmp->tag",
adamc@166 1486 space,
adamc@166 1487 string "=",
adamc@166 1488 space,
adamc@316 1489 string ("__uwc_" ^ ident x' ^ "_" ^ Int.toString n),
adamc@166 1490 string ";",
adamc@166 1491 newline,
adamc@166 1492 string "request",
adamc@166 1493 space,
adamc@166 1494 string "+=",
adamc@166 1495 space,
adamc@167 1496 string (Int.toString (size x')),
adamc@166 1497 string ";",
adamc@166 1498 newline,
adamc@200 1499 string "if (request[0] == '/') ++request;",
adamc@200 1500 newline,
adamc@166 1501 case to of
adamc@166 1502 NONE => box []
adamc@311 1503 | SOME t => box [string "tmp->data.uw_",
adamc@316 1504 p_ident x',
adamc@166 1505 space,
adamc@166 1506 string "=",
adamc@166 1507 space,
adamc@166 1508 unurlify t,
adamc@166 1509 string ";",
adamc@166 1510 newline],
adamc@181 1511 string "tmp;",
adamc@166 1512 newline,
adamc@166 1513 string "})",
adamc@166 1514 space,
adamc@166 1515 string ":",
adamc@166 1516 space,
adamc@166 1517 doEm rest,
adamc@166 1518 string ")"]
adamc@166 1519 in
adamc@166 1520 doEm xncs
adamc@166 1521 end
adamc@166 1522
adamc@144 1523 | _ => (ErrorMsg.errorAt loc "Unable to choose a URL decoding function";
adamc@144 1524 space)
adamc@144 1525
adamc@144 1526
adamc@144 1527 fun p_page (ek, s, n, ts) =
adamc@144 1528 let
adamc@144 1529 val (ts, defInputs, inputsVar) =
adamc@144 1530 case ek of
adamc@314 1531 Core.Link => (List.take (ts, length ts - 1), string "", string "")
adamc@144 1532 | Core.Action =>
adamc@280 1533 case List.nth (ts, length ts - 2) of
adamc@144 1534 (TRecord i, _) =>
adamc@144 1535 let
adamc@144 1536 val xts = E.lookupStruct env i
adamc@144 1537 in
adamc@280 1538 (List.take (ts, length ts - 2),
adamc@144 1539 box [box (map (fn (x, t) => box [p_typ env t,
adamc@144 1540 space,
adamc@311 1541 string "uw_input_",
adamc@316 1542 p_ident x,
adamc@144 1543 string ";",
adamc@144 1544 newline]) xts),
adamc@144 1545 newline,
adamc@144 1546 box (map (fn (x, t) =>
adamc@144 1547 let
adamc@144 1548 val n = case SM.find (fnums, x) of
adamc@144 1549 NONE => raise Fail "CjrPrint: Can't find in fnums"
adamc@144 1550 | SOME n => n
adamc@190 1551
adamc@190 1552 val f = case t of
adamc@190 1553 (TFfi ("Basis", "bool"), _) => "optional_"
adamc@190 1554 | _ => ""
adamc@144 1555 in
adamc@311 1556 box [string "request = uw_get_",
adamc@190 1557 string f,
adamc@190 1558 string "input(ctx, ",
adamc@144 1559 string (Int.toString n),
adamc@144 1560 string ");",
adamc@144 1561 newline,
adamc@144 1562 string "if (request == NULL) {",
adamc@144 1563 newline,
adamc@144 1564 box [string "printf(\"Missing input ",
adamc@144 1565 string x,
adamc@144 1566 string "\\n\");",
adamc@144 1567 newline,
adamc@144 1568 string "exit(1);"],
adamc@144 1569 newline,
adamc@144 1570 string "}",
adamc@144 1571 newline,
adamc@311 1572 string "uw_input_",
adamc@316 1573 p_ident x,
adamc@144 1574 space,
adamc@144 1575 string "=",
adamc@144 1576 space,
adamc@144 1577 unurlify t,
adamc@144 1578 string ";",
adamc@144 1579 newline]
adamc@144 1580 end) xts),
adamc@311 1581 string "struct __uws_",
adamc@144 1582 string (Int.toString i),
adamc@144 1583 space,
adamc@311 1584 string "uw_inputs",
adamc@144 1585 space,
adamc@144 1586 string "= {",
adamc@144 1587 newline,
adamc@311 1588 box (map (fn (x, _) => box [string "uw_input_",
adamc@316 1589 p_ident x,
adamc@144 1590 string ",",
adamc@144 1591 newline]) xts),
adamc@144 1592 string "};",
adamc@144 1593 newline],
adamc@144 1594 box [string ",",
adamc@144 1595 space,
adamc@311 1596 string "uw_inputs"])
adamc@144 1597 end
adamc@144 1598
adamc@144 1599 | _ => raise Fail "CjrPrint: Last argument to an action isn't a record"
adamc@144 1600 in
adamc@144 1601 box [string "if (!strncmp(request, \"",
adamc@144 1602 string (String.toString s),
adamc@144 1603 string "\", ",
adamc@144 1604 string (Int.toString (size s)),
adamc@198 1605 string ") && (request[",
adamc@198 1606 string (Int.toString (size s)),
adamc@198 1607 string "] == 0 || request[",
adamc@198 1608 string (Int.toString (size s)),
adamc@198 1609 string "] == '/')) {",
adamc@144 1610 newline,
adamc@144 1611 string "request += ",
adamc@144 1612 string (Int.toString (size s)),
adamc@144 1613 string ";",
adamc@144 1614 newline,
adamc@144 1615 string "if (*request == '/') ++request;",
adamc@144 1616 newline,
adamc@144 1617 box [string "{",
adamc@144 1618 newline,
adamc@144 1619 box (ListUtil.mapi (fn (i, t) => box [p_typ env t,
adamc@144 1620 space,
adamc@144 1621 string "arg",
adamc@144 1622 string (Int.toString i),
adamc@144 1623 space,
adamc@144 1624 string "=",
adamc@144 1625 space,
adamc@144 1626 unurlify t,
adamc@144 1627 string ";",
adamc@144 1628 newline]) ts),
adamc@144 1629 defInputs,
adamc@144 1630 p_enamed env n,
adamc@144 1631 string "(",
adamc@144 1632 p_list_sep (box [string ",", space])
adamc@144 1633 (fn x => x)
adamc@272 1634 (string "ctx"
adamc@280 1635 :: ListUtil.mapi (fn (i, _) => string ("arg" ^ Int.toString i)) ts),
adamc@144 1636 inputsVar,
adamc@311 1637 string ", uw_unit_v);",
adamc@144 1638 newline,
adamc@144 1639 string "return;",
adamc@144 1640 newline,
adamc@144 1641 string "}",
adamc@144 1642 newline,
adamc@144 1643 string "}"]
adamc@144 1644 ]
adamc@144 1645 end
adamc@144 1646
adamc@144 1647 val pds' = map p_page ps
adamc@275 1648
adamc@275 1649 val tables = List.mapPartial (fn (DTable (s, xts), _) => SOME (s, xts)
adamc@275 1650 | _ => NONE) ds
adamc@275 1651
adamc@275 1652 val validate =
adamc@311 1653 box [string "static void uw_db_validate(uw_context ctx) {",
adamc@275 1654 newline,
adamc@311 1655 string "PGconn *conn = uw_get_db(ctx);",
adamc@275 1656 newline,
adamc@275 1657 string "PGresult *res;",
adamc@275 1658 newline,
adamc@275 1659 newline,
adamc@275 1660 p_list_sep newline
adamc@275 1661 (fn (s, xts) =>
adamc@275 1662 let
adamc@275 1663 val q = "SELECT COUNT(*) FROM pg_class WHERE relname = '"
adamc@275 1664 ^ s ^ "'"
adamc@275 1665
adamc@275 1666 val q' = String.concat ["SELECT COUNT(*) FROM pg_attribute WHERE attrelid = (SELECT oid FROM pg_class WHERE relname = '",
adamc@275 1667 s,
adamc@275 1668 "') AND (",
adamc@275 1669 String.concatWith " OR "
adamc@275 1670 (map (fn (x, t) =>
adamc@311 1671 String.concat ["(attname = 'uw_",
adamc@275 1672 CharVector.map
adamc@316 1673 Char.toLower (ident x),
adamc@275 1674 "' AND atttypid = (SELECT oid FROM pg_type",
adamc@275 1675 " WHERE typname = '",
adamc@275 1676 p_sqltype' env t,
adamc@275 1677 "'))"]) xts),
adamc@275 1678 ")"]
adamc@275 1679
adamc@275 1680 val q'' = String.concat ["SELECT COUNT(*) FROM pg_attribute WHERE attrelid = (SELECT oid FROM pg_class WHERE relname = '",
adamc@275 1681 s,
adamc@275 1682 "') AND attnum >= 0"]
adamc@275 1683 in
adamc@275 1684 box [string "res = PQexec(conn, \"",
adamc@275 1685 string q,
adamc@275 1686 string "\");",
adamc@275 1687 newline,
adamc@275 1688 newline,
adamc@275 1689 string "if (res == NULL) {",
adamc@275 1690 newline,
adamc@275 1691 box [string "PQfinish(conn);",
adamc@275 1692 newline,
adamc@311 1693 string "uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1694 newline],
adamc@275 1695 string "}",
adamc@275 1696 newline,
adamc@275 1697 newline,
adamc@275 1698 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1699 newline,
adamc@275 1700 box [string "char msg[1024];",
adamc@275 1701 newline,
adamc@275 1702 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1703 newline,
adamc@275 1704 string "msg[1023] = 0;",
adamc@275 1705 newline,
adamc@275 1706 string "PQclear(res);",
adamc@275 1707 newline,
adamc@275 1708 string "PQfinish(conn);",
adamc@275 1709 newline,
adamc@311 1710 string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1711 string q,
adamc@275 1712 string "\\n%s\", msg);",
adamc@275 1713 newline],
adamc@275 1714 string "}",
adamc@275 1715 newline,
adamc@275 1716 newline,
adamc@275 1717 string "if (strcmp(PQgetvalue(res, 0, 0), \"1\")) {",
adamc@275 1718 newline,
adamc@275 1719 box [string "PQclear(res);",
adamc@275 1720 newline,
adamc@275 1721 string "PQfinish(conn);",
adamc@275 1722 newline,
adamc@311 1723 string "uw_error(ctx, FATAL, \"Table '",
adamc@275 1724 string s,
adamc@275 1725 string "' does not exist.\");",
adamc@275 1726 newline],
adamc@275 1727 string "}",
adamc@275 1728 newline,
adamc@275 1729 newline,
adamc@275 1730 string "PQclear(res);",
adamc@275 1731 newline,
adamc@275 1732
adamc@275 1733 string "res = PQexec(conn, \"",
adamc@275 1734 string q',
adamc@275 1735 string "\");",
adamc@275 1736 newline,
adamc@275 1737 newline,
adamc@275 1738 string "if (res == NULL) {",
adamc@275 1739 newline,
adamc@275 1740 box [string "PQfinish(conn);",
adamc@275 1741 newline,
adamc@311 1742 string "uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1743 newline],
adamc@275 1744 string "}",
adamc@275 1745 newline,
adamc@275 1746 newline,
adamc@275 1747 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1748 newline,
adamc@275 1749 box [string "char msg[1024];",
adamc@275 1750 newline,
adamc@275 1751 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1752 newline,
adamc@275 1753 string "msg[1023] = 0;",
adamc@275 1754 newline,
adamc@275 1755 string "PQclear(res);",
adamc@275 1756 newline,
adamc@275 1757 string "PQfinish(conn);",
adamc@275 1758 newline,
adamc@311 1759 string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1760 string q',
adamc@275 1761 string "\\n%s\", msg);",
adamc@275 1762 newline],
adamc@275 1763 string "}",
adamc@275 1764 newline,
adamc@275 1765 newline,
adamc@275 1766 string "if (strcmp(PQgetvalue(res, 0, 0), \"",
adamc@275 1767 string (Int.toString (length xts)),
adamc@275 1768 string "\")) {",
adamc@275 1769 newline,
adamc@275 1770 box [string "PQclear(res);",
adamc@275 1771 newline,
adamc@275 1772 string "PQfinish(conn);",
adamc@275 1773 newline,
adamc@311 1774 string "uw_error(ctx, FATAL, \"Table '",
adamc@275 1775 string s,
adamc@275 1776 string "' has the wrong column types.\");",
adamc@275 1777 newline],
adamc@275 1778 string "}",
adamc@275 1779 newline,
adamc@275 1780 newline,
adamc@275 1781 string "PQclear(res);",
adamc@275 1782 newline,
adamc@275 1783 newline,
adamc@275 1784
adamc@275 1785 string "res = PQexec(conn, \"",
adamc@275 1786 string q'',
adamc@275 1787 string "\");",
adamc@275 1788 newline,
adamc@275 1789 newline,
adamc@275 1790 string "if (res == NULL) {",
adamc@275 1791 newline,
adamc@275 1792 box [string "PQfinish(conn);",
adamc@275 1793 newline,
adamc@311 1794 string "uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1795 newline],
adamc@275 1796 string "}",
adamc@275 1797 newline,
adamc@275 1798 newline,
adamc@275 1799 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1800 newline,
adamc@275 1801 box [string "char msg[1024];",
adamc@275 1802 newline,
adamc@275 1803 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1804 newline,
adamc@275 1805 string "msg[1023] = 0;",
adamc@275 1806 newline,
adamc@275 1807 string "PQclear(res);",
adamc@275 1808 newline,
adamc@275 1809 string "PQfinish(conn);",
adamc@275 1810 newline,
adamc@311 1811 string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1812 string q'',
adamc@275 1813 string "\\n%s\", msg);",
adamc@275 1814 newline],
adamc@275 1815 string "}",
adamc@275 1816 newline,
adamc@275 1817 newline,
adamc@275 1818 string "if (strcmp(PQgetvalue(res, 0, 0), \"",
adamc@275 1819 string (Int.toString (length xts)),
adamc@275 1820 string "\")) {",
adamc@275 1821 newline,
adamc@275 1822 box [string "PQclear(res);",
adamc@275 1823 newline,
adamc@275 1824 string "PQfinish(conn);",
adamc@275 1825 newline,
adamc@311 1826 string "uw_error(ctx, FATAL, \"Table '",
adamc@275 1827 string s,
adamc@275 1828 string "' has extra columns.\");",
adamc@275 1829 newline],
adamc@275 1830 string "}",
adamc@275 1831 newline,
adamc@275 1832 newline,
adamc@275 1833 string "PQclear(res);",
adamc@275 1834 newline]
adamc@275 1835 end) tables,
adamc@275 1836 string "}"]
adamc@29 1837 in
adamc@144 1838 box [string "#include <stdio.h>",
adamc@144 1839 newline,
adamc@144 1840 string "#include <stdlib.h>",
adamc@144 1841 newline,
adamc@272 1842 string "#include <string.h>",
adamc@272 1843 newline,
adamc@272 1844 string "#include <postgresql/libpq-fe.h>",
adamc@272 1845 newline,
adamc@144 1846 newline,
adamc@244 1847 string "#include \"urweb.h\"",
adamc@101 1848 newline,
adamc@101 1849 newline,
adamc@101 1850 p_list_sep newline (fn x => x) pds,
adamc@101 1851 newline,
adamc@311 1852 string "int uw_inputs_len = ",
adamc@144 1853 string (Int.toString (SM.foldl Int.max 0 fnums + 1)),
adamc@144 1854 string ";",
adamc@144 1855 newline,
adamc@144 1856 newline,
adamc@311 1857 string "int uw_input_num(char *name) {",
adamc@144 1858 newline,
adamc@144 1859 makeSwitch (fnums, 0),
adamc@144 1860 string "}",
adamc@144 1861 newline,
adamc@144 1862 newline,
adamc@311 1863 string "void uw_handle(uw_context ctx, char *request) {",
adamc@101 1864 newline,
adamc@101 1865 p_list_sep newline (fn x => x) pds',
adamc@101 1866 newline,
adamc@101 1867 string "}",
adamc@275 1868 newline,
adamc@275 1869 newline,
adamc@275 1870 validate,
adamc@101 1871 newline]
adamc@29 1872 end
adamc@29 1873
adamc@274 1874 fun p_sql env (ds, _) =
adamc@274 1875 let
adamc@274 1876 val (pps, _) = ListUtil.foldlMap
adamc@274 1877 (fn (dAll as (d, _), env) =>
adamc@274 1878 let
adamc@274 1879 val pp = case d of
adamc@274 1880 DTable (s, xts) =>
adamc@274 1881 box [string "CREATE TABLE ",
adamc@274 1882 string s,
adamc@274 1883 string "(",
adamc@274 1884 p_list (fn (x, t) =>
adamc@311 1885 box [string "uw_",
adamc@275 1886 string (CharVector.map Char.toLower x),
adamc@274 1887 space,
adamc@274 1888 p_sqltype env t,
adamc@274 1889 space,
adamc@274 1890 string "NOT",
adamc@274 1891 space,
adamc@274 1892 string "NULL"]) xts,
adamc@274 1893 string ");",
adamc@274 1894 newline,
adamc@274 1895 newline]
adamc@274 1896 | _ => box []
adamc@274 1897 in
adamc@274 1898 (pp, E.declBinds env dAll)
adamc@274 1899 end)
adamc@274 1900 env ds
adamc@274 1901 in
adamc@274 1902 box pps
adamc@274 1903 end
adamc@274 1904
adamc@29 1905 end