Mercurial > urweb

annotate src/cjr_print.sml @ 467:3f1b9231a37b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Inserted a NULL value
author Adam Chlipala <adamc@hcoop.net>
date Thu, 06 Nov 2008 15:37:38 -0500
parents bb27c7efcd90
children 4efab85405be
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@463 65 fun isUnboxable (t : typ) =
adamc@463 66 case #1 t of
adamc@463 67 TDatatype (Default, _, _) => true
adamc@463 68 | TFfi ("Basis", "string") => true
adamc@463 69 | _ => false
adamc@463 70
adamc@29 71 fun p_typ' par env (t, loc) =
adamc@29 72 case t of
adamc@269 73 TFun (t1, t2) => parenIf par (box [p_typ' true env t2,
adamc@109 74 space,
adamc@109 75 string "(*)",
adamc@109 76 space,
adamc@109 77 string "(",
adamc@109 78 p_typ env t1,
adamc@109 79 string ")"])
adamc@29 80 | TRecord i => box [string "struct",
adamc@29 81 space,
adamc@311 82 string "__uws_",
adamc@29 83 string (Int.toString i)]
adamc@188 84 | TDatatype (Enum, n, _) =>
adamc@188 85 (box [string "enum",
adamc@188 86 space,
adamc@311 87 string ("__uwe_" ^ #1 (E.lookupDatatype env n) ^ "_" ^ Int.toString n)]
adamc@311 88 handle CjrEnv.UnboundNamed _ => string ("__uwd_UNBOUND__" ^ Int.toString n))
adamc@198 89 | TDatatype (Option, n, xncs) =>
adamc@198 90 (case ListUtil.search #3 (!xncs) of
adamc@198 91 NONE => raise Fail "CjrPrint: TDatatype marked Option has no constructor with an argument"
adamc@198 92 | SOME t =>
adamc@198 93 case #1 t of
adamc@198 94 TDatatype _ => p_typ' par env t
adamc@199 95 | TFfi ("Basis", "string") => p_typ' par env t
adamc@198 96 | _ => box [p_typ' par env t,
adamc@198 97 string "*"])
adamc@188 98 | TDatatype (Default, n, _) =>
adamc@165 99 (box [string "struct",
adamc@165 100 space,
adamc@311 101 string ("__uwd_" ^ #1 (E.lookupDatatype env n) ^ "_" ^ Int.toString n ^ "*")]
adamc@311 102 handle CjrEnv.UnboundNamed _ => string ("__uwd_UNBOUND__" ^ Int.toString n))
adamc@316 103 | TFfi (m, x) => box [string "uw_", p_ident m, string "_", p_ident x]
adamc@288 104 | TOption t =>
adamc@463 105 if isUnboxable t then
adamc@463 106 p_typ' par env t
adamc@463 107 else
adamc@463 108 box [p_typ' par env t,
adamc@463 109 string "*"]
adamc@29 110
adamc@29 111 and p_typ env = p_typ' false env
adamc@29 112
adamc@316 113 fun p_rel env n = string ("__uwr_" ^ ident (#1 (E.lookupERel env n)) ^ "_" ^ Int.toString (E.countERels env - n - 1))
adamc@311 114 handle CjrEnv.UnboundRel _ => string ("__uwr_UNBOUND_" ^ Int.toString (E.countERels env - n - 1))
adamc@29 115
adamc@109 116 fun p_enamed env n =
adamc@316 117 string ("__uwn_" ^ ident (#1 (E.lookupENamed env n)) ^ "_" ^ Int.toString n)
adamc@311 118 handle CjrEnv.UnboundNamed _ => string ("__uwn_UNBOUND_" ^ Int.toString n)
adamc@109 119
adamc@182 120 fun p_con_named env n =
adamc@316 121 string ("__uwc_" ^ ident (#1 (E.lookupConstructor env n)) ^ "_" ^ Int.toString n)
adamc@311 122 handle CjrEnv.UnboundNamed _ => string ("__uwc_UNBOUND_" ^ Int.toString n)
adamc@182 123
adamc@182 124 fun p_pat_preamble env (p, _) =
adamc@182 125 case p of
adamc@182 126 PWild => (box [],
adamc@182 127 env)
adamc@182 128 | PVar (x, t) => (box [p_typ env t,
adamc@182 129 space,
adamc@311 130 string "__uwr_",
adamc@316 131 p_ident x,
adamc@182 132 string "_",
adamc@182 133 string (Int.toString (E.countERels env)),
adamc@182 134 string ";",
adamc@182 135 newline],
adamc@196 136 E.pushERel env x t)
adamc@182 137 | PPrim _ => (box [], env)
adamc@188 138 | PCon (_, _, NONE) => (box [], env)
adamc@188 139 | PCon (_, _, SOME p) => p_pat_preamble env p
adamc@182 140 | PRecord xps =>
adamc@182 141 foldl (fn ((_, p, _), (pp, env)) =>
adamc@182 142 let
adamc@182 143 val (pp', env) = p_pat_preamble env p
adamc@182 144 in
adamc@182 145 (box [pp', pp], env)
adamc@182 146 end) (box [], env) xps
adamc@288 147 | PNone _ => (box [], env)
adamc@288 148 | PSome (_, p) => p_pat_preamble env p
adamc@182 149
adamc@182 150 fun p_patCon env pc =
adamc@182 151 case pc of
adamc@182 152 PConVar n => p_con_named env n
adamc@316 153 | PConFfi {mod = m, con, ...} => string ("uw_" ^ ident m ^ "_" ^ ident con)
adamc@182 154
adamc@182 155 fun p_pat (env, exit, depth) (p, _) =
adamc@182 156 case p of
adamc@182 157 PWild =>
adamc@182 158 (box [], env)
adamc@182 159 | PVar (x, t) =>
adamc@311 160 (box [string "__uwr_",
adamc@316 161 p_ident x,
adamc@182 162 string "_",
adamc@182 163 string (Int.toString (E.countERels env)),
adamc@182 164 space,
adamc@182 165 string "=",
adamc@182 166 space,
adamc@182 167 string "disc",
adamc@182 168 string (Int.toString depth),
adamc@182 169 string ";"],
adamc@182 170 E.pushERel env x t)
adamc@182 171 | PPrim (Prim.Int n) =>
adamc@182 172 (box [string "if",
adamc@182 173 space,
adamc@182 174 string "(disc",
adamc@182 175 string (Int.toString depth),
adamc@182 176 space,
adamc@182 177 string "!=",
adamc@182 178 space,
adamc@276 179 Prim.p_t_GCC (Prim.Int n),
adamc@182 180 string ")",
adamc@182 181 space,
adamc@182 182 exit],
adamc@182 183 env)
adamc@182 184 | PPrim (Prim.String s) =>
adamc@182 185 (box [string "if",
adamc@182 186 space,
adamc@182 187 string "(strcmp(disc",
adamc@182 188 string (Int.toString depth),
adamc@182 189 string ",",
adamc@182 190 space,
adamc@276 191 Prim.p_t_GCC (Prim.String s),
adamc@182 192 string "))",
adamc@182 193 space,
adamc@182 194 exit],
adamc@182 195 env)
adamc@182 196 | PPrim _ => raise Fail "CjrPrint: Disallowed PPrim primitive"
adamc@182 197
adamc@188 198 | PCon (dk, pc, po) =>
adamc@182 199 let
adamc@182 200 val (p, env) =
adamc@182 201 case po of
adamc@182 202 NONE => (box [], env)
adamc@182 203 | SOME p =>
adamc@182 204 let
adamc@182 205 val (p, env) = p_pat (env, exit, depth + 1) p
adamc@182 206
adamc@182 207 val (x, to) = case pc of
adamc@182 208 PConVar n =>
adamc@182 209 let
adamc@182 210 val (x, to, _) = E.lookupConstructor env n
adamc@182 211 in
adamc@316 212 ("uw_" ^ ident x, to)
adamc@182 213 end
adamc@188 214 | PConFfi {mod = m, con, arg, ...} =>
adamc@316 215 ("uw_" ^ ident m ^ "_" ^ ident con, arg)
adamc@182 216
adamc@182 217 val t = case to of
adamc@182 218 NONE => raise Fail "CjrPrint: Constructor mismatch"
adamc@182 219 | SOME t => t
adamc@182 220 in
adamc@182 221 (box [string "{",
adamc@182 222 newline,
adamc@182 223 p_typ env t,
adamc@182 224 space,
adamc@182 225 string "disc",
adamc@182 226 string (Int.toString (depth + 1)),
adamc@182 227 space,
adamc@182 228 string "=",
adamc@182 229 space,
adamc@198 230 case dk of
adamc@198 231 Enum => raise Fail "CjrPrint: Looking at argument of no-argument constructor"
adamc@198 232 | Default => box [string "disc",
adamc@198 233 string (Int.toString depth),
adamc@198 234 string "->data.",
adamc@198 235 string x]
adamc@198 236 | Option =>
adamc@463 237 if isUnboxable t then
adamc@463 238 box [string "disc",
adamc@463 239 string (Int.toString depth)]
adamc@463 240 else
adamc@463 241 box [string "*disc",
adamc@463 242 string (Int.toString depth)],
adamc@182 243 string ";",
adamc@182 244 newline,
adamc@182 245 p,
adamc@182 246 newline,
adamc@182 247 string "}"],
adamc@182 248 env)
adamc@182 249 end
adamc@182 250 in
adamc@182 251 (box [string "if",
adamc@182 252 space,
adamc@182 253 string "(disc",
adamc@182 254 string (Int.toString depth),
adamc@198 255 case (dk, po) of
adamc@198 256 (Enum, _) => box [space,
adamc@198 257 string "!=",
adamc@198 258 space,
adamc@198 259 p_patCon env pc]
adamc@198 260 | (Default, _) => box [string "->tag",
adamc@198 261 space,
adamc@198 262 string "!=",
adamc@198 263 space,
adamc@198 264 p_patCon env pc]
adamc@198 265 | (Option, NONE) => box [space,
adamc@198 266 string "!=",
adamc@198 267 space,
adamc@198 268 string "NULL"]
adamc@198 269 | (Option, SOME _) => box [space,
adamc@198 270 string "==",
adamc@198 271 space,
adamc@198 272 string "NULL"],
adamc@182 273 string ")",
adamc@182 274 space,
adamc@182 275 exit,
adamc@182 276 newline,
adamc@182 277 p],
adamc@182 278 env)
adamc@182 279 end
adamc@182 280
adamc@182 281 | PRecord xps =>
adamc@182 282 let
adamc@182 283 val (xps, env) =
adamc@182 284 ListUtil.foldlMap (fn ((x, p, t), env) =>
adamc@182 285 let
adamc@182 286 val (p, env) = p_pat (env, exit, depth + 1) p
adamc@182 287
adamc@182 288 val p = box [string "{",
adamc@182 289 newline,
adamc@182 290 p_typ env t,
adamc@182 291 space,
adamc@182 292 string "disc",
adamc@182 293 string (Int.toString (depth + 1)),
adamc@182 294 space,
adamc@182 295 string "=",
adamc@182 296 space,
adamc@182 297 string "disc",
adamc@182 298 string (Int.toString depth),
adamc@311 299 string ".__uwf_",
adamc@316 300 p_ident x,
adamc@182 301 string ";",
adamc@182 302 newline,
adamc@182 303 p,
adamc@182 304 newline,
adamc@182 305 string "}"]
adamc@182 306 in
adamc@182 307 (p, env)
adamc@182 308 end) env xps
adamc@182 309 in
adamc@182 310 (p_list_sep newline (fn x => x) xps,
adamc@182 311 env)
adamc@182 312 end
adamc@182 313
adamc@288 314 | PNone t =>
adamc@288 315 (box [string "if",
adamc@288 316 space,
adamc@288 317 string "(disc",
adamc@288 318 string (Int.toString depth),
adamc@288 319 space,
adamc@288 320 string "!=",
adamc@288 321 space,
adamc@288 322 string "NULL)",
adamc@288 323 space,
adamc@288 324 exit,
adamc@288 325 newline],
adamc@288 326 env)
adamc@288 327
adamc@288 328 | PSome (t, p) =>
adamc@288 329 let
adamc@288 330 val (p, env) =
adamc@288 331 let
adamc@288 332 val (p, env) = p_pat (env, exit, depth + 1) p
adamc@288 333 in
adamc@288 334 (box [string "{",
adamc@288 335 newline,
adamc@288 336 p_typ env t,
adamc@288 337 space,
adamc@288 338 string "disc",
adamc@288 339 string (Int.toString (depth + 1)),
adamc@288 340 space,
adamc@288 341 string "=",
adamc@288 342 space,
adamc@463 343 if isUnboxable t then
adamc@463 344 box [string "disc",
adamc@463 345 string (Int.toString depth)]
adamc@463 346 else
adamc@463 347 box [string "*disc",
adamc@463 348 string (Int.toString depth)],
adamc@288 349 string ";",
adamc@288 350 newline,
adamc@288 351 p,
adamc@288 352 newline,
adamc@288 353 string "}"],
adamc@288 354 env)
adamc@288 355 end
adamc@288 356 in
adamc@288 357 (box [string "if",
adamc@288 358 space,
adamc@288 359 string "(disc",
adamc@288 360 string (Int.toString depth),
adamc@288 361 space,
adamc@288 362 string "==",
adamc@288 363 space,
adamc@288 364 string "NULL)",
adamc@288 365 space,
adamc@288 366 exit,
adamc@288 367 newline,
adamc@288 368 p],
adamc@288 369 env)
adamc@288 370 end
adamc@288 371
adamc@182 372 local
adamc@182 373 val count = ref 0
adamc@182 374 in
adamc@182 375 fun newGoto () =
adamc@182 376 let
adamc@182 377 val r = !count
adamc@182 378 in
adamc@182 379 count := r + 1;
adamc@182 380 string ("L" ^ Int.toString r)
adamc@182 381 end
adamc@182 382 end
adamc@182 383
adamc@185 384 fun patConInfo env pc =
adamc@185 385 case pc of
adamc@185 386 PConVar n =>
adamc@185 387 let
adamc@185 388 val (x, _, dn) = E.lookupConstructor env n
adamc@185 389 val (dx, _) = E.lookupDatatype env dn
adamc@185 390 in
adamc@316 391 ("__uwd_" ^ ident dx ^ "_" ^ Int.toString dn,
adamc@316 392 "__uwc_" ^ ident x ^ "_" ^ Int.toString n,
adamc@316 393 "uw_" ^ ident x)
adamc@185 394 end
adamc@186 395 | PConFfi {mod = m, datatyp, con, ...} =>
adamc@316 396 ("uw_" ^ ident m ^ "_" ^ ident datatyp,
adamc@316 397 "uw_" ^ ident m ^ "_" ^ ident con,
adamc@316 398 "uw_" ^ ident con)
adamc@185 399
adamc@324 400 fun p_unsql wontLeakStrings env (tAll as (t, loc)) e =
adamc@278 401 case t of
adamc@311 402 TFfi ("Basis", "int") => box [string "uw_Basis_stringToInt_error(ctx, ", e, string ")"]
adamc@311 403 | TFfi ("Basis", "float") => box [string "uw_Basis_stringToFloat_error(ctx, ", e, string ")"]
adamc@324 404 | TFfi ("Basis", "string") =>
adamc@324 405 if wontLeakStrings then
adamc@324 406 e
adamc@324 407 else
adamc@324 408 box [string "uw_Basis_strdup(ctx, ", e, string ")"]
adamc@311 409 | TFfi ("Basis", "bool") => box [string "uw_Basis_stringToBool_error(ctx, ", e, string ")"]
adamc@438 410 | TFfi ("Basis", "time") => box [string "uw_Basis_stringToTime_error(ctx, ", e, string ")"]
adamc@467 411
adamc@278 412 | _ => (ErrorMsg.errorAt loc "Don't know how to unmarshal type from SQL";
adamc@278 413 Print.eprefaces' [("Type", p_typ env tAll)];
adamc@278 414 string "ERROR")
adamc@278 415
adamc@467 416 fun p_getcol wontLeakStrings env (tAll as (t, loc)) i =
adamc@467 417 case t of
adamc@467 418 TOption t =>
adamc@467 419 box [string "(PQgetisnull (res, i, ",
adamc@467 420 string (Int.toString i),
adamc@467 421 string ") ? NULL : ",
adamc@467 422 case t of
adamc@467 423 (TFfi ("Basis", "string"), _) => p_getcol wontLeakStrings env t i
adamc@467 424 | _ => box [string "({",
adamc@467 425 newline,
adamc@467 426 p_typ env t,
adamc@467 427 space,
adamc@467 428 string "*tmp = uw_malloc(ctx, sizeof(",
adamc@467 429 p_typ env t,
adamc@467 430 string "));",
adamc@467 431 newline,
adamc@467 432 string "*tmp = ",
adamc@467 433 p_getcol wontLeakStrings env t i,
adamc@467 434 string ";",
adamc@467 435 newline,
adamc@467 436 string "tmp;",
adamc@467 437 newline,
adamc@467 438 string "})"],
adamc@467 439 string ")"]
adamc@467 440
adamc@467 441 | _ =>
adamc@467 442 p_unsql wontLeakStrings env tAll
adamc@467 443 (box [string "PQgetvalue(res, i, ",
adamc@467 444 string (Int.toString i),
adamc@467 445 string ")"])
adamc@467 446
adamc@282 447 datatype sql_type =
adamc@282 448 Int
adamc@282 449 | Float
adamc@282 450 | String
adamc@282 451 | Bool
adamc@439 452 | Time
adamc@467 453 | Nullable of sql_type
adamc@282 454
adamc@467 455 fun p_sql_type' t =
adamc@467 456 case t of
adamc@467 457 Int => "uw_Basis_int"
adamc@467 458 | Float => "uw_Basis_float"
adamc@467 459 | String => "uw_Basis_string"
adamc@467 460 | Bool => "uw_Basis_bool"
adamc@467 461 | Time => "uw_Basis_time"
adamc@467 462 | Nullable String => "uw_Basis_string"
adamc@467 463 | Nullable t => p_sql_type' t ^ "*"
adamc@467 464
adamc@467 465 fun p_sql_type t = string (p_sql_type' t)
adamc@282 466
adamc@282 467 fun getPargs (e, _) =
adamc@282 468 case e of
adamc@282 469 EPrim (Prim.String _) => []
adamc@282 470 | EFfiApp ("Basis", "strcat", [e1, e2]) => getPargs e1 @ getPargs e2
adamc@282 471
adamc@282 472 | EFfiApp ("Basis", "sqlifyInt", [e]) => [(e, Int)]
adamc@282 473 | EFfiApp ("Basis", "sqlifyFloat", [e]) => [(e, Float)]
adamc@282 474 | EFfiApp ("Basis", "sqlifyString", [e]) => [(e, String)]
adamc@282 475 | EFfiApp ("Basis", "sqlifyBool", [e]) => [(e, Bool)]
adamc@439 476 | EFfiApp ("Basis", "sqlifyTime", [e]) => [(e, Time)]
adamc@322 477 | ECase (e, _, _) => [(e, Bool)]
adamc@282 478
adamc@282 479 | _ => raise Fail "CjrPrint: getPargs"
adamc@282 480
adamc@282 481 fun p_ensql t e =
adamc@282 482 case t of
adamc@311 483 Int => box [string "uw_Basis_attrifyInt(ctx, ", e, string ")"]
adamc@311 484 | Float => box [string "uw_Basis_attrifyFloat(ctx, ", e, string ")"]
adamc@282 485 | String => e
adamc@295 486 | Bool => box [string "(", e, string " ? \"TRUE\" : \"FALSE\")"]
adamc@439 487 | Time => box [string "uw_Basis_sqlifyTime(ctx, ", e, string ")"]
adamc@467 488 | Nullable String => e
adamc@467 489 | Nullable t => box [string "(",
adamc@467 490 e,
adamc@467 491 string " == NULL ? NULL : ",
adamc@467 492 p_ensql t (box [string "*", e]),
adamc@467 493 string ")"]
adamc@282 494
adamc@324 495 fun notLeaky env allowHeapAllocated =
adamc@324 496 let
adamc@324 497 fun nl (t, _) =
adamc@324 498 case t of
adamc@324 499 TFun _ => false
adamc@324 500 | TRecord n =>
adamc@324 501 let
adamc@324 502 val xts = E.lookupStruct env n
adamc@324 503 in
adamc@324 504 List.all (fn (_, t) => nl t) xts
adamc@324 505 end
adamc@324 506 | TDatatype (dk, _, ref cons) =>
adamc@324 507 (allowHeapAllocated orelse dk = Enum)
adamc@324 508 andalso List.all (fn (_, _, to) => case to of
adamc@324 509 NONE => true
adamc@324 510 | SOME t => nl t) cons
adamc@324 511 | TFfi ("Basis", "string") => false
adamc@324 512 | TFfi _ => true
adamc@324 513 | TOption t => allowHeapAllocated andalso nl t
adamc@324 514 in
adamc@324 515 nl
adamc@324 516 end
adamc@324 517
adamc@463 518 fun capitalize s =
adamc@463 519 if s = "" then
adamc@463 520 ""
adamc@463 521 else
adamc@463 522 str (Char.toUpper (String.sub (s, 0))) ^ String.extract (s, 1, NONE)
adamc@463 523
adamc@463 524 fun unurlify env (t, loc) =
adamc@463 525 let
adamc@463 526 fun unurlify' rf t =
adamc@463 527 case t of
adamc@463 528 TFfi ("Basis", "unit") => string ("uw_unit_v")
adamc@463 529 | TFfi (m, t) => string ("uw_" ^ ident m ^ "_unurlify" ^ capitalize t ^ "(ctx, &request)")
adamc@463 530
adamc@463 531 | TRecord 0 => string "uw_unit_v"
adamc@463 532 | TRecord i =>
adamc@463 533 let
adamc@463 534 val xts = E.lookupStruct env i
adamc@463 535 in
adamc@463 536 box [string "({",
adamc@463 537 newline,
adamc@463 538 box (map (fn (x, t) =>
adamc@463 539 box [p_typ env t,
adamc@463 540 space,
adamc@463 541 string "uwr_",
adamc@463 542 string x,
adamc@463 543 space,
adamc@463 544 string "=",
adamc@463 545 space,
adamc@463 546 unurlify' rf (#1 t),
adamc@463 547 string ";",
adamc@463 548 newline]) xts),
adamc@463 549 string "struct",
adamc@463 550 space,
adamc@463 551 string "__uws_",
adamc@463 552 string (Int.toString i),
adamc@463 553 space,
adamc@463 554 string "tmp",
adamc@463 555 space,
adamc@463 556 string "=",
adamc@463 557 space,
adamc@463 558 string "{",
adamc@463 559 space,
adamc@463 560 p_list_sep (box [string ",", space]) (fn (x, _) => box [string "uwr_",
adamc@463 561 string x]) xts,
adamc@463 562 space,
adamc@463 563 string "};",
adamc@463 564 newline,
adamc@463 565 string "tmp;",
adamc@463 566 newline,
adamc@463 567 string "})"]
adamc@463 568 end
adamc@463 569
adamc@463 570 | TDatatype (Enum, i, _) =>
adamc@463 571 let
adamc@463 572 val (x, xncs) = E.lookupDatatype env i
adamc@463 573
adamc@463 574 fun doEm xncs =
adamc@463 575 case xncs of
adamc@463 576 [] => string ("(uw_error(ctx, FATAL, \"Error unurlifying datatype "
adamc@463 577 ^ x ^ "\"), (enum __uwe_"
adamc@463 578 ^ x ^ "_" ^ Int.toString i ^ ")0)")
adamc@463 579 | (x', n, to) :: rest =>
adamc@463 580 box [string "((!strncmp(request, \"",
adamc@463 581 string x',
adamc@463 582 string "\", ",
adamc@463 583 string (Int.toString (size x')),
adamc@463 584 string ") && (request[",
adamc@463 585 string (Int.toString (size x')),
adamc@463 586 string "] == 0 || request[",
adamc@463 587 string (Int.toString (size x')),
adamc@463 588 string ("] == '/')) ? __uwc_" ^ ident x' ^ "_" ^ Int.toString n),
adamc@463 589 space,
adamc@463 590 string ":",
adamc@463 591 space,
adamc@463 592 doEm rest,
adamc@463 593 string ")"]
adamc@463 594 in
adamc@463 595 doEm xncs
adamc@463 596 end
adamc@463 597
adamc@463 598 | TDatatype (Option, i, xncs) =>
adamc@463 599 if IS.member (rf, i) then
adamc@463 600 box [string "unurlify_",
adamc@463 601 string (Int.toString i),
adamc@463 602 string "()"]
adamc@463 603 else
adamc@463 604 let
adamc@463 605 val (x, _) = E.lookupDatatype env i
adamc@463 606
adamc@463 607 val (no_arg, has_arg, t) =
adamc@463 608 case !xncs of
adamc@463 609 [(no_arg, _, NONE), (has_arg, _, SOME t)] =>
adamc@463 610 (no_arg, has_arg, t)
adamc@463 611 | [(has_arg, _, SOME t), (no_arg, _, NONE)] =>
adamc@463 612 (no_arg, has_arg, t)
adamc@463 613 | _ => raise Fail "CjrPrint: unfooify misclassified Option datatype"
adamc@463 614
adamc@463 615 val rf = IS.add (rf, i)
adamc@463 616 in
adamc@463 617 box [string "({",
adamc@463 618 space,
adamc@463 619 p_typ env t,
adamc@463 620 space,
adamc@463 621 string "*unurlify_",
adamc@463 622 string (Int.toString i),
adamc@463 623 string "(void) {",
adamc@463 624 newline,
adamc@463 625 box [string "return (request[0] == '/' ? ++request : request,",
adamc@463 626 newline,
adamc@463 627 string "((!strncmp(request, \"",
adamc@463 628 string no_arg,
adamc@463 629 string "\", ",
adamc@463 630 string (Int.toString (size no_arg)),
adamc@463 631 string ") && (request[",
adamc@463 632 string (Int.toString (size no_arg)),
adamc@463 633 string "] == 0 || request[",
adamc@463 634 string (Int.toString (size no_arg)),
adamc@463 635 string "] == '/')) ? (request",
adamc@463 636 space,
adamc@463 637 string "+=",
adamc@463 638 space,
adamc@463 639 string (Int.toString (size no_arg)),
adamc@463 640 string ", NULL) : ((!strncmp(request, \"",
adamc@463 641 string has_arg,
adamc@463 642 string "\", ",
adamc@463 643 string (Int.toString (size has_arg)),
adamc@463 644 string ") && (request[",
adamc@463 645 string (Int.toString (size has_arg)),
adamc@463 646 string "] == 0 || request[",
adamc@463 647 string (Int.toString (size has_arg)),
adamc@463 648 string "] == '/')) ? (request",
adamc@463 649 space,
adamc@463 650 string "+=",
adamc@463 651 space,
adamc@463 652 string (Int.toString (size has_arg)),
adamc@463 653 string ", (request[0] == '/' ? ++request : NULL), ",
adamc@463 654 newline,
adamc@463 655
adamc@463 656 if isUnboxable t then
adamc@463 657 unurlify' rf (#1 t)
adamc@463 658 else
adamc@463 659 box [string "({",
adamc@463 660 newline,
adamc@463 661 p_typ env t,
adamc@463 662 space,
adamc@463 663 string "*tmp",
adamc@463 664 space,
adamc@463 665 string "=",
adamc@463 666 space,
adamc@463 667 string "uw_malloc(ctx, sizeof(",
adamc@463 668 p_typ env t,
adamc@463 669 string "));",
adamc@463 670 newline,
adamc@463 671 string "*tmp",
adamc@463 672 space,
adamc@463 673 string "=",
adamc@463 674 space,
adamc@463 675 unurlify' rf (#1 t),
adamc@463 676 string ";",
adamc@463 677 newline,
adamc@463 678 string "tmp;",
adamc@463 679 newline,
adamc@463 680 string "})"],
adamc@463 681 string ")",
adamc@463 682 newline,
adamc@463 683 string ":",
adamc@463 684 space,
adamc@463 685 string ("(uw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x
adamc@463 686 ^ "\"), NULL))));"),
adamc@463 687 newline],
adamc@463 688 string "}",
adamc@463 689 newline,
adamc@463 690 newline,
adamc@463 691
adamc@463 692 string "unurlify_",
adamc@463 693 string (Int.toString i),
adamc@463 694 string "();",
adamc@463 695 newline,
adamc@463 696 string "})"]
adamc@463 697 end
adamc@463 698
adamc@463 699 | TDatatype (Default, i, _) =>
adamc@463 700 if IS.member (rf, i) then
adamc@463 701 box [string "unurlify_",
adamc@463 702 string (Int.toString i),
adamc@463 703 string "()"]
adamc@463 704 else
adamc@463 705 let
adamc@463 706 val (x, xncs) = E.lookupDatatype env i
adamc@463 707
adamc@463 708 val rf = IS.add (rf, i)
adamc@463 709
adamc@463 710 fun doEm xncs =
adamc@463 711 case xncs of
adamc@463 712 [] => string ("(uw_error(ctx, FATAL, \"Error unurlifying datatype "
adamc@463 713 ^ x ^ "\"), NULL)")
adamc@463 714 | (x', n, to) :: rest =>
adamc@463 715 box [string "((!strncmp(request, \"",
adamc@463 716 string x',
adamc@463 717 string "\", ",
adamc@463 718 string (Int.toString (size x')),
adamc@463 719 string ") && (request[",
adamc@463 720 string (Int.toString (size x')),
adamc@463 721 string "] == 0 || request[",
adamc@463 722 string (Int.toString (size x')),
adamc@463 723 string "] == '/')) ? ({",
adamc@463 724 newline,
adamc@463 725 string "struct",
adamc@463 726 space,
adamc@463 727 string ("__uwd_" ^ ident x ^ "_" ^ Int.toString i),
adamc@463 728 space,
adamc@463 729 string "*tmp = uw_malloc(ctx, sizeof(struct __uwd_",
adamc@463 730 string x,
adamc@463 731 string "_",
adamc@463 732 string (Int.toString i),
adamc@463 733 string "));",
adamc@463 734 newline,
adamc@463 735 string "tmp->tag",
adamc@463 736 space,
adamc@463 737 string "=",
adamc@463 738 space,
adamc@463 739 string ("__uwc_" ^ ident x' ^ "_" ^ Int.toString n),
adamc@463 740 string ";",
adamc@463 741 newline,
adamc@463 742 string "request",
adamc@463 743 space,
adamc@463 744 string "+=",
adamc@463 745 space,
adamc@463 746 string (Int.toString (size x')),
adamc@463 747 string ";",
adamc@463 748 newline,
adamc@463 749 string "if (request[0] == '/') ++request;",
adamc@463 750 newline,
adamc@463 751 case to of
adamc@463 752 NONE => box []
adamc@463 753 | SOME (t, _) => box [string "tmp->data.uw_",
adamc@463 754 p_ident x',
adamc@463 755 space,
adamc@463 756 string "=",
adamc@463 757 space,
adamc@463 758 unurlify' rf t,
adamc@463 759 string ";",
adamc@463 760 newline],
adamc@463 761 string "tmp;",
adamc@463 762 newline,
adamc@463 763 string "})",
adamc@463 764 space,
adamc@463 765 string ":",
adamc@463 766 space,
adamc@463 767 doEm rest,
adamc@463 768 string ")"]
adamc@463 769 in
adamc@463 770 box [string "({",
adamc@463 771 space,
adamc@463 772 p_typ env (t, ErrorMsg.dummySpan),
adamc@463 773 space,
adamc@463 774 string "unurlify_",
adamc@463 775 string (Int.toString i),
adamc@463 776 string "(void) {",
adamc@463 777 newline,
adamc@463 778 box [string "return",
adamc@463 779 space,
adamc@463 780 doEm xncs,
adamc@463 781 string ";",
adamc@463 782 newline],
adamc@463 783 string "}",
adamc@463 784 newline,
adamc@463 785 newline,
adamc@463 786
adamc@463 787 string "unurlify_",
adamc@463 788 string (Int.toString i),
adamc@463 789 string "();",
adamc@463 790 newline,
adamc@463 791 string "})"]
adamc@463 792 end
adamc@463 793
adamc@463 794 | _ => (ErrorMsg.errorAt loc "Unable to choose a URL decoding function";
adamc@463 795 space)
adamc@463 796 in
adamc@463 797 unurlify' IS.empty t
adamc@463 798 end
adamc@463 799
adamc@182 800 fun p_exp' par env (e, loc) =
adamc@29 801 case e of
adamc@276 802 EPrim p => Prim.p_t_GCC p
adamc@29 803 | ERel n => p_rel env n
adamc@109 804 | ENamed n => p_enamed env n
adamc@188 805 | ECon (Enum, pc, _) => p_patCon env pc
adamc@198 806 | ECon (Option, pc, NONE) => string "NULL"
adamc@198 807 | ECon (Option, pc, SOME e) =>
adamc@198 808 let
adamc@198 809 val to = case pc of
adamc@198 810 PConVar n => #2 (E.lookupConstructor env n)
adamc@198 811 | PConFfi {arg, ...} => arg
adamc@198 812
adamc@198 813 val t = case to of
adamc@198 814 NONE => raise Fail "CjrPrint: ECon argument status mismatch"
adamc@198 815 | SOME t => t
adamc@198 816 in
adamc@463 817 if isUnboxable t then
adamc@463 818 p_exp' par env e
adamc@463 819 else
adamc@463 820 box [string "({",
adamc@463 821 newline,
adamc@463 822 p_typ env t,
adamc@463 823 space,
adamc@463 824 string "*tmp",
adamc@463 825 space,
adamc@463 826 string "=",
adamc@463 827 space,
adamc@463 828 string "uw_malloc(ctx, sizeof(",
adamc@463 829 p_typ env t,
adamc@463 830 string "));",
adamc@463 831 newline,
adamc@463 832 string "*tmp",
adamc@463 833 space,
adamc@463 834 string "=",
adamc@463 835 p_exp' par env e,
adamc@463 836 string ";",
adamc@463 837 newline,
adamc@463 838 string "tmp;",
adamc@463 839 newline,
adamc@463 840 string "})"]
adamc@198 841 end
adamc@188 842 | ECon (Default, pc, eo) =>
adamc@181 843 let
adamc@196 844 val (xd, xc, xn) = patConInfo env pc
adamc@181 845 in
adamc@182 846 box [string "({",
adamc@181 847 newline,
adamc@181 848 string "struct",
adamc@181 849 space,
adamc@185 850 string xd,
adamc@181 851 space,
adamc@181 852 string "*tmp",
adamc@181 853 space,
adamc@181 854 string "=",
adamc@181 855 space,
adamc@311 856 string "uw_malloc(ctx, sizeof(struct ",
adamc@185 857 string xd,
adamc@181 858 string "));",
adamc@181 859 newline,
adamc@181 860 string "tmp->tag",
adamc@181 861 space,
adamc@181 862 string "=",
adamc@181 863 space,
adamc@185 864 string xc,
adamc@181 865 string ";",
adamc@181 866 newline,
adamc@181 867 case eo of
adamc@181 868 NONE => box []
adamc@185 869 | SOME e => box [string "tmp->data.",
adamc@196 870 string xn,
adamc@181 871 space,
adamc@181 872 string "=",
adamc@181 873 space,
adamc@181 874 p_exp env e,
adamc@181 875 string ";",
adamc@181 876 newline],
adamc@181 877 string "tmp;",
adamc@181 878 newline,
adamc@181 879 string "})"]
adamc@181 880 end
adamc@297 881 | ENone _ => string "NULL"
adamc@290 882 | ESome (t, e) =>
adamc@463 883 if isUnboxable t then
adamc@463 884 p_exp' par env e
adamc@463 885 else
adamc@463 886 box [string "({",
adamc@463 887 newline,
adamc@463 888 p_typ env t,
adamc@463 889 space,
adamc@463 890 string "*tmp",
adamc@463 891 space,
adamc@463 892 string "=",
adamc@463 893 space,
adamc@463 894 string "uw_malloc(ctx, sizeof(",
adamc@463 895 p_typ env t,
adamc@463 896 string "));",
adamc@463 897 newline,
adamc@463 898 string "*tmp",
adamc@463 899 space,
adamc@463 900 string "=",
adamc@463 901 p_exp' par env e,
adamc@463 902 string ";",
adamc@463 903 newline,
adamc@463 904 string "tmp;",
adamc@463 905 newline,
adamc@463 906 string "})"]
adamc@109 907
adamc@316 908 | EFfi (m, x) => box [string "uw_", p_ident m, string "_", p_ident x]
adamc@283 909 | EError (e, t) =>
adamc@283 910 box [string "({",
adamc@283 911 newline,
adamc@283 912 p_typ env t,
adamc@283 913 space,
adamc@283 914 string "tmp;",
adamc@283 915 newline,
adamc@311 916 string "uw_error(ctx, FATAL, \"",
adamc@292 917 string (ErrorMsg.spanToString loc),
adamc@292 918 string ": %s\", ",
adamc@283 919 p_exp env e,
adamc@283 920 string ");",
adamc@283 921 newline,
adamc@283 922 string "tmp;",
adamc@283 923 newline,
adamc@283 924 string "})"]
adamc@311 925 | EFfiApp (m, x, es) => box [string "uw_",
adamc@316 926 p_ident m,
adamc@53 927 string "_",
adamc@316 928 p_ident x,
adamc@117 929 string "(ctx, ",
adamc@53 930 p_list (p_exp env) es,
adamc@53 931 string ")"]
adamc@316 932 | EApp (f, args) =>
adamc@316 933 parenIf par (box [p_exp' true env f,
adamc@316 934 string "(ctx,",
adamc@316 935 space,
adamc@316 936 p_list_sep (box [string ",", space]) (p_exp env) args,
adamc@316 937 string ")"])
adamc@29 938
adamc@387 939 | EUnop (s, e1) =>
adamc@387 940 parenIf par (box [string s,
adamc@387 941 space,
adamc@387 942 p_exp' true env e1])
adamc@387 943
adamc@387 944 | EBinop (s, e1, e2) =>
adamc@389 945 if Char.isAlpha (String.sub (s, size s - 1)) then
adamc@389 946 box [string s,
adamc@390 947 string "(",
adamc@389 948 p_exp env e1,
adamc@389 949 string ",",
adamc@389 950 space,
adamc@389 951 p_exp env e2,
adamc@389 952 string ")"]
adamc@389 953 else
adamc@389 954 parenIf par (box [p_exp' true env e1,
adamc@389 955 space,
adamc@389 956 string s,
adamc@389 957 space,
adamc@389 958 p_exp' true env e2])
adamc@387 959
adamc@29 960 | ERecord (i, xes) => box [string "({",
adamc@29 961 space,
adamc@29 962 string "struct",
adamc@29 963 space,
adamc@311 964 string ("__uws_" ^ Int.toString i),
adamc@29 965 space,
adamc@181 966 string "tmp",
adamc@29 967 space,
adamc@29 968 string "=",
adamc@29 969 space,
adamc@29 970 string "{",
adamc@29 971 p_list (fn (_, e) =>
adamc@29 972 p_exp env e) xes,
adamc@29 973 string "};",
adamc@29 974 space,
adamc@181 975 string "tmp;",
adamc@29 976 space,
adamc@29 977 string "})" ]
adamc@29 978 | EField (e, x) =>
adamc@29 979 box [p_exp' true env e,
adamc@311 980 string ".__uwf_",
adamc@316 981 p_ident x]
adamc@29 982
adamc@182 983 | ECase (e, pes, {disc, result}) =>
adamc@182 984 let
adamc@182 985 val final = newGoto ()
adamc@182 986
adamc@182 987 val body = foldl (fn ((p, e), body) =>
adamc@182 988 let
adamc@182 989 val exit = newGoto ()
adamc@182 990 val (pr, _) = p_pat_preamble env p
adamc@182 991 val (p, env) = p_pat (env,
adamc@182 992 box [string "goto",
adamc@182 993 space,
adamc@182 994 exit,
adamc@182 995 string ";"],
adamc@182 996 0) p
adamc@182 997 in
adamc@182 998 box [body,
adamc@182 999 box [string "{",
adamc@182 1000 newline,
adamc@182 1001 pr,
adamc@182 1002 newline,
adamc@182 1003 p,
adamc@182 1004 newline,
adamc@182 1005 string "result",
adamc@182 1006 space,
adamc@182 1007 string "=",
adamc@182 1008 space,
adamc@182 1009 p_exp env e,
adamc@182 1010 string ";",
adamc@182 1011 newline,
adamc@182 1012 string "goto",
adamc@182 1013 space,
adamc@182 1014 final,
adamc@182 1015 string ";",
adamc@182 1016 newline,
adamc@182 1017 string "}"],
adamc@182 1018 newline,
adamc@182 1019 exit,
adamc@182 1020 string ":",
adamc@182 1021 newline]
adamc@182 1022 end) (box []) pes
adamc@182 1023 in
adamc@182 1024 box [string "({",
adamc@182 1025 newline,
adamc@182 1026 p_typ env disc,
adamc@182 1027 space,
adamc@182 1028 string "disc0",
adamc@182 1029 space,
adamc@182 1030 string "=",
adamc@182 1031 space,
adamc@182 1032 p_exp env e,
adamc@182 1033 string ";",
adamc@182 1034 newline,
adamc@182 1035 p_typ env result,
adamc@182 1036 space,
adamc@182 1037 string "result;",
adamc@182 1038 newline,
adamc@182 1039 body,
adamc@311 1040 string "uw_error(ctx, FATAL, \"",
adamc@182 1041 string (ErrorMsg.spanToString loc),
adamc@182 1042 string ": pattern match failure\");",
adamc@182 1043 newline,
adamc@182 1044 final,
adamc@182 1045 string ":",
adamc@182 1046 space,
adamc@182 1047 string "result;",
adamc@182 1048 newline,
adamc@182 1049 string "})"]
adamc@182 1050 end
adamc@181 1051
adamc@311 1052 | EWrite e => box [string "(uw_write(ctx, ",
adamc@102 1053 p_exp env e,
adamc@311 1054 string "), uw_unit_v)"]
adamc@102 1055
adamc@106 1056 | ESeq (e1, e2) => box [string "(",
adamc@106 1057 p_exp env e1,
adamc@106 1058 string ",",
adamc@106 1059 space,
adamc@106 1060 p_exp env e2,
adamc@106 1061 string ")"]
adamc@269 1062 | ELet (x, t, e1, e2) => box [string "({",
adamc@269 1063 newline,
adamc@269 1064 p_typ env t,
adamc@269 1065 space,
adamc@311 1066 string "__uwr_",
adamc@316 1067 p_ident x,
adamc@272 1068 string "_",
adamc@272 1069 string (Int.toString (E.countERels env)),
adamc@269 1070 space,
adamc@269 1071 string "=",
adamc@269 1072 space,
adamc@269 1073 p_exp env e1,
adamc@269 1074 string ";",
adamc@269 1075 newline,
adamc@269 1076 p_exp (E.pushERel env x t) e2,
adamc@269 1077 string ";",
adamc@269 1078 newline,
adamc@269 1079 string "})"]
adamc@269 1080
adamc@282 1081 | EQuery {exps, tables, rnum, state, query, body, initial, prepared} =>
adamc@278 1082 let
adamc@316 1083 val exps = map (fn (x, t) => ("__uwf_" ^ ident x, t)) exps
adamc@278 1084 val tables = ListUtil.mapConcat (fn (x, xts) =>
adamc@316 1085 map (fn (x', t) => ("__uwf_" ^ ident x ^ ".__uwf_" ^ ident x', t)) xts)
adamc@278 1086 tables
adamc@278 1087
adamc@278 1088 val outputs = exps @ tables
adamc@325 1089 val outputs = ListMergeSort.sort (fn ((s1, _), (s2, _)) => String.compare (s1, s2) = GREATER) outputs
adamc@324 1090
adamc@324 1091 val wontLeakStrings = notLeaky env true state
adamc@324 1092 val wontLeakAnything = notLeaky env false state
adamc@278 1093 in
adamc@324 1094 box [string "(uw_begin_region(ctx), ",
adamc@324 1095 if wontLeakAnything then
adamc@331 1096 string "uw_begin_region(ctx), "
adamc@324 1097 else
adamc@324 1098 box [],
adamc@324 1099 string "({",
adamc@278 1100 newline,
adamc@311 1101 string "PGconn *conn = uw_get_db(ctx);",
adamc@278 1102 newline,
adamc@282 1103 case prepared of
adamc@282 1104 NONE => box [string "char *query = ",
adamc@282 1105 p_exp env query,
adamc@282 1106 string ";",
adamc@282 1107 newline]
adamc@282 1108 | SOME _ =>
adamc@282 1109 let
adamc@282 1110 val ets = getPargs query
adamc@282 1111 in
adamc@282 1112 box [p_list_sepi newline
adamc@282 1113 (fn i => fn (e, t) =>
adamc@282 1114 box [p_sql_type t,
adamc@282 1115 space,
adamc@282 1116 string "arg",
adamc@282 1117 string (Int.toString (i + 1)),
adamc@282 1118 space,
adamc@282 1119 string "=",
adamc@282 1120 space,
adamc@282 1121 p_exp env e,
adamc@282 1122 string ";"])
adamc@282 1123 ets,
adamc@282 1124 newline,
adamc@282 1125 newline,
adamc@282 1126
adamc@282 1127 string "const char *paramValues[] = { ",
adamc@282 1128 p_list_sepi (box [string ",", space])
adamc@282 1129 (fn i => fn (_, t) => p_ensql t (box [string "arg",
adamc@282 1130 string (Int.toString (i + 1))]))
adamc@282 1131 ets,
adamc@282 1132 string " };",
adamc@282 1133 newline,
adamc@282 1134 newline]
adamc@282 1135 end,
adamc@278 1136 string "int n, i;",
adamc@278 1137 newline,
adamc@278 1138 p_typ env state,
adamc@278 1139 space,
adamc@278 1140 string "acc",
adamc@278 1141 space,
adamc@278 1142 string "=",
adamc@278 1143 space,
adamc@278 1144 p_exp env initial,
adamc@278 1145 string ";",
adamc@278 1146 newline,
adamc@282 1147 string "PGresult *res = ",
adamc@282 1148 case prepared of
adamc@295 1149 NONE => string "PQexecParams(conn, query, 0, NULL, NULL, NULL, NULL, 0);"
adamc@311 1150 | SOME n => box [string "PQexecPrepared(conn, \"uw",
adamc@282 1151 string (Int.toString n),
adamc@282 1152 string "\", ",
adamc@282 1153 string (Int.toString (length (getPargs query))),
adamc@295 1154 string ", paramValues, NULL, NULL, 0);"],
adamc@278 1155 newline,
adamc@278 1156 newline,
adamc@277 1157
adamc@311 1158 string "if (res == NULL) uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@278 1159 newline,
adamc@278 1160 newline,
adamc@277 1161
adamc@278 1162 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@278 1163 newline,
adamc@278 1164 box [string "PQclear(res);",
adamc@278 1165 newline,
adamc@311 1166 string "uw_error(ctx, FATAL, \"",
adamc@278 1167 string (ErrorMsg.spanToString loc),
adamc@282 1168 string ": Query failed:\\n%s\\n%s\", ",
adamc@282 1169 case prepared of
adamc@282 1170 NONE => string "query"
adamc@282 1171 | SOME _ => p_exp env query,
adamc@282 1172 string ", PQerrorMessage(conn));",
adamc@278 1173 newline],
adamc@278 1174 string "}",
adamc@278 1175 newline,
adamc@278 1176 newline,
adamc@277 1177
adamc@323 1178 string "uw_end_region(ctx);",
adamc@323 1179 newline,
adamc@425 1180 string "uw_push_cleanup(ctx, (void (*)(void *))PQclear, res);",
adamc@425 1181 newline,
adamc@278 1182 string "n = PQntuples(res);",
adamc@278 1183 newline,
adamc@278 1184 string "for (i = 0; i < n; ++i) {",
adamc@278 1185 newline,
adamc@278 1186 box [string "struct",
adamc@278 1187 space,
adamc@311 1188 string "__uws_",
adamc@278 1189 string (Int.toString rnum),
adamc@278 1190 space,
adamc@311 1191 string "__uwr_r_",
adamc@278 1192 string (Int.toString (E.countERels env)),
adamc@278 1193 string ";",
adamc@278 1194 newline,
adamc@278 1195 p_typ env state,
adamc@278 1196 space,
adamc@311 1197 string "__uwr_acc_",
adamc@278 1198 string (Int.toString (E.countERels env + 1)),
adamc@278 1199 space,
adamc@278 1200 string "=",
adamc@278 1201 space,
adamc@278 1202 string "acc;",
adamc@278 1203 newline,
adamc@278 1204 newline,
adamc@278 1205
adamc@278 1206 p_list_sepi (box []) (fn i =>
adamc@278 1207 fn (proj, t) =>
adamc@311 1208 box [string "__uwr_r_",
adamc@278 1209 string (Int.toString (E.countERels env)),
adamc@278 1210 string ".",
adamc@278 1211 string proj,
adamc@278 1212 space,
adamc@278 1213 string "=",
adamc@278 1214 space,
adamc@467 1215 p_getcol wontLeakStrings env t i,
adamc@278 1216 string ";",
adamc@278 1217 newline]) outputs,
adamc@278 1218
adamc@278 1219 newline,
adamc@278 1220 newline,
adamc@278 1221
adamc@278 1222 string "acc",
adamc@278 1223 space,
adamc@278 1224 string "=",
adamc@278 1225 space,
adamc@278 1226 p_exp (E.pushERel
adamc@278 1227 (E.pushERel env "r" (TRecord rnum, loc))
adamc@278 1228 "acc" state)
adamc@278 1229 body,
adamc@278 1230 string ";",
adamc@278 1231 newline],
adamc@278 1232 string "}",
adamc@278 1233 newline,
adamc@278 1234 newline,
adamc@425 1235 string "uw_pop_cleanup(ctx);",
adamc@278 1236 newline,
adamc@324 1237 if wontLeakAnything then
adamc@324 1238 box [string "uw_end_region(ctx);",
adamc@324 1239 newline]
adamc@324 1240 else
adamc@324 1241 box [],
adamc@278 1242 string "acc;",
adamc@278 1243 newline,
adamc@323 1244 string "}))"]
adamc@278 1245 end
adamc@106 1246
adamc@307 1247 | EDml {dml, prepared} =>
adamc@337 1248 box [string "(uw_begin_region(ctx), ({",
adamc@307 1249 newline,
adamc@311 1250 string "PGconn *conn = uw_get_db(ctx);",
adamc@307 1251 newline,
adamc@307 1252 case prepared of
adamc@307 1253 NONE => box [string "char *dml = ",
adamc@307 1254 p_exp env dml,
adamc@307 1255 string ";",
adamc@307 1256 newline]
adamc@307 1257 | SOME _ =>
adamc@307 1258 let
adamc@307 1259 val ets = getPargs dml
adamc@307 1260 in
adamc@307 1261 box [p_list_sepi newline
adamc@307 1262 (fn i => fn (e, t) =>
adamc@307 1263 box [p_sql_type t,
adamc@307 1264 space,
adamc@307 1265 string "arg",
adamc@307 1266 string (Int.toString (i + 1)),
adamc@307 1267 space,
adamc@307 1268 string "=",
adamc@307 1269 space,
adamc@307 1270 p_exp env e,
adamc@307 1271 string ";"])
adamc@307 1272 ets,
adamc@307 1273 newline,
adamc@307 1274 newline,
adamc@307 1275
adamc@307 1276 string "const char *paramValues[] = { ",
adamc@307 1277 p_list_sepi (box [string ",", space])
adamc@307 1278 (fn i => fn (_, t) => p_ensql t (box [string "arg",
adamc@307 1279 string (Int.toString (i + 1))]))
adamc@307 1280 ets,
adamc@307 1281 string " };",
adamc@307 1282 newline,
adamc@307 1283 newline]
adamc@307 1284 end,
adamc@307 1285 newline,
adamc@307 1286 newline,
adamc@307 1287 string "PGresult *res = ",
adamc@307 1288 case prepared of
adamc@307 1289 NONE => string "PQexecParams(conn, dml, 0, NULL, NULL, NULL, NULL, 0);"
adamc@311 1290 | SOME n => box [string "PQexecPrepared(conn, \"uw",
adamc@307 1291 string (Int.toString n),
adamc@307 1292 string "\", ",
adamc@307 1293 string (Int.toString (length (getPargs dml))),
adamc@307 1294 string ", paramValues, NULL, NULL, 0);"],
adamc@307 1295 newline,
adamc@307 1296 newline,
adamc@307 1297
adamc@311 1298 string "if (res == NULL) uw_error(ctx, FATAL, \"Out of memory allocating DML result.\");",
adamc@307 1299 newline,
adamc@307 1300 newline,
adamc@307 1301
adamc@307 1302 string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@307 1303 newline,
adamc@307 1304 box [string "PQclear(res);",
adamc@307 1305 newline,
adamc@311 1306 string "uw_error(ctx, FATAL, \"",
adamc@307 1307 string (ErrorMsg.spanToString loc),
adamc@307 1308 string ": DML failed:\\n%s\\n%s\", ",
adamc@307 1309 case prepared of
adamc@307 1310 NONE => string "dml"
adamc@307 1311 | SOME _ => p_exp env dml,
adamc@307 1312 string ", PQerrorMessage(conn));",
adamc@307 1313 newline],
adamc@307 1314 string "}",
adamc@307 1315 newline,
adamc@307 1316 newline,
adamc@307 1317
adamc@307 1318 string "PQclear(res);",
adamc@307 1319 newline,
adamc@337 1320 string "uw_end_region(ctx);",
adamc@337 1321 newline,
adamc@311 1322 string "uw_unit_v;",
adamc@307 1323 newline,
adamc@337 1324 string "}))"]
adamc@307 1325
adamc@338 1326 | ENextval {seq, prepared} =>
adamc@338 1327 let
adamc@338 1328 val query = (EFfiApp ("Basis", "strcat", [seq, (EPrim (Prim.String "')"), loc)]), loc)
adamc@338 1329 val query = (EFfiApp ("Basis", "strcat", [(EPrim (Prim.String "SELECT NEXTVAL('"), loc), query]), loc)
adamc@338 1330 in
adamc@338 1331 box [string "(uw_begin_region(ctx), ",
adamc@338 1332 string "({",
adamc@338 1333 newline,
adamc@338 1334 string "PGconn *conn = uw_get_db(ctx);",
adamc@338 1335 newline,
adamc@338 1336 case prepared of
adamc@338 1337 NONE => box [string "char *query = ",
adamc@338 1338 p_exp env query,
adamc@338 1339 string ";",
adamc@338 1340 newline]
adamc@338 1341 | SOME _ =>
adamc@338 1342 box [],
adamc@338 1343 newline,
adamc@338 1344 string "PGresult *res = ",
adamc@338 1345 case prepared of
adamc@338 1346 NONE => string "PQexecParams(conn, query, 0, NULL, NULL, NULL, NULL, 0);"
adamc@338 1347 | SOME n => box [string "PQexecPrepared(conn, \"uw",
adamc@338 1348 string (Int.toString n),
adamc@338 1349 string "\", 0, NULL, NULL, NULL, 0);"],
adamc@338 1350 newline,
adamc@338 1351 string "uw_Basis_int n;",
adamc@338 1352 newline,
adamc@338 1353 newline,
adamc@338 1354
adamc@338 1355 string "if (res == NULL) uw_error(ctx, FATAL, \"Out of memory allocating nextval result.\");",
adamc@338 1356 newline,
adamc@338 1357 newline,
adamc@338 1358
adamc@338 1359 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@338 1360 newline,
adamc@338 1361 box [string "PQclear(res);",
adamc@338 1362 newline,
adamc@338 1363 string "uw_error(ctx, FATAL, \"",
adamc@338 1364 string (ErrorMsg.spanToString loc),
adamc@338 1365 string ": Query failed:\\n%s\\n%s\", ",
adamc@338 1366 case prepared of
adamc@338 1367 NONE => string "query"
adamc@338 1368 | SOME _ => p_exp env query,
adamc@338 1369 string ", PQerrorMessage(conn));",
adamc@338 1370 newline],
adamc@338 1371 string "}",
adamc@338 1372 newline,
adamc@338 1373 newline,
adamc@338 1374
adamc@338 1375 string "uw_end_region(ctx);",
adamc@338 1376 newline,
adamc@338 1377 string "n = PQntuples(res);",
adamc@338 1378 newline,
adamc@338 1379 string "if (n != 1) {",
adamc@338 1380 newline,
adamc@338 1381 box [string "PQclear(res);",
adamc@338 1382 newline,
adamc@338 1383 string "uw_error(ctx, FATAL, \"",
adamc@338 1384 string (ErrorMsg.spanToString loc),
adamc@338 1385 string ": Wrong number of result rows:\\n%s\\n%s\", ",
adamc@338 1386 case prepared of
adamc@338 1387 NONE => string "query"
adamc@338 1388 | SOME _ => p_exp env query,
adamc@338 1389 string ", PQerrorMessage(conn));",
adamc@338 1390 newline],
adamc@338 1391 string "}",
adamc@338 1392 newline,
adamc@338 1393 newline,
adamc@338 1394
adamc@338 1395 string "n = ",
adamc@338 1396 p_unsql true env (TFfi ("Basis", "int"), loc)
adamc@338 1397 (string "PQgetvalue(res, 0, 0)"),
adamc@338 1398 string ";",
adamc@338 1399 newline,
adamc@338 1400 string "PQclear(res);",
adamc@338 1401 newline,
adamc@338 1402 string "n;",
adamc@338 1403 newline,
adamc@338 1404 string "}))"]
adamc@338 1405 end
adamc@338 1406
adamc@463 1407 | EUnurlify (e, t) =>
adamc@463 1408 let
adamc@463 1409 fun getIt () =
adamc@463 1410 if isUnboxable t then
adamc@463 1411 unurlify env t
adamc@463 1412 else
adamc@463 1413 box [string "({",
adamc@463 1414 newline,
adamc@463 1415 p_typ env t,
adamc@463 1416 string " *tmp = uw_malloc(ctx, sizeof(",
adamc@463 1417 p_typ env t,
adamc@463 1418 string "));",
adamc@463 1419 newline,
adamc@463 1420 string "*tmp = ",
adamc@463 1421 unurlify env t,
adamc@463 1422 string ";",
adamc@463 1423 newline,
adamc@463 1424 string "tmp;",
adamc@463 1425 newline,
adamc@463 1426 string "})"]
adamc@463 1427 in
adamc@463 1428 box [string "({",
adamc@463 1429 newline,
adamc@463 1430 string "uw_Basis_string request = ",
adamc@463 1431 p_exp env e,
adamc@463 1432 string ";",
adamc@463 1433 newline,
adamc@463 1434 newline,
adamc@463 1435 string "(request ? ",
adamc@463 1436 getIt (),
adamc@463 1437 string " : NULL);",
adamc@463 1438 newline,
adamc@463 1439 string "})"]
adamc@463 1440 end
adamc@463 1441
adamc@29 1442 and p_exp env = p_exp' false env
adamc@29 1443
adamc@129 1444 fun p_fun env (fx, n, args, ran, e) =
adamc@129 1445 let
adamc@129 1446 val nargs = length args
adamc@129 1447 val env' = foldl (fn ((x, dom), env) => E.pushERel env x dom) env args
adamc@129 1448 in
adamc@129 1449 box [string "static",
adamc@129 1450 space,
adamc@129 1451 p_typ env ran,
adamc@129 1452 space,
adamc@316 1453 string ("__uwn_" ^ ident fx ^ "_" ^ Int.toString n),
adamc@129 1454 string "(",
adamc@129 1455 p_list_sep (box [string ",", space]) (fn x => x)
adamc@311 1456 (string "uw_context ctx" :: ListUtil.mapi (fn (i, (_, dom)) =>
adamc@129 1457 box [p_typ env dom,
adamc@129 1458 space,
adamc@129 1459 p_rel env' (nargs - i - 1)]) args),
adamc@129 1460 string ")",
adamc@129 1461 space,
adamc@129 1462 string "{",
adamc@129 1463 newline,
adamc@129 1464 box[string "return(",
adamc@129 1465 p_exp env' e,
adamc@129 1466 string ");"],
adamc@129 1467 newline,
adamc@129 1468 string "}"]
adamc@129 1469 end
adamc@129 1470
adamc@129 1471 fun p_decl env (dAll as (d, _) : decl) =
adamc@29 1472 case d of
adamc@29 1473 DStruct (n, xts) =>
adamc@196 1474 let
adamc@196 1475 val env = E.declBinds env dAll
adamc@196 1476 in
adamc@196 1477 box [string "struct",
adamc@196 1478 space,
adamc@311 1479 string ("__uws_" ^ Int.toString n),
adamc@196 1480 space,
adamc@196 1481 string "{",
adamc@196 1482 newline,
adamc@196 1483 p_list_sep (box []) (fn (x, t) => box [p_typ env t,
adamc@196 1484 space,
adamc@311 1485 string "__uwf_",
adamc@316 1486 p_ident x,
adamc@196 1487 string ";",
adamc@196 1488 newline]) xts,
adamc@196 1489 string "};"]
adamc@196 1490 end
adamc@188 1491 | DDatatype (Enum, x, n, xncs) =>
adamc@188 1492 box [string "enum",
adamc@188 1493 space,
adamc@316 1494 string ("__uwe_" ^ ident x ^ "_" ^ Int.toString n),
adamc@188 1495 space,
adamc@188 1496 string "{",
adamc@188 1497 space,
adamc@316 1498 p_list_sep (box [string ",", space]) (fn (x, n, _) =>
adamc@316 1499 string ("__uwc_" ^ ident x ^ "_" ^ Int.toString n)) xncs,
adamc@188 1500 space,
adamc@188 1501 string "};"]
adamc@198 1502 | DDatatype (Option, _, _, _) => box []
adamc@188 1503 | DDatatype (Default, x, n, xncs) =>
adamc@165 1504 let
adamc@165 1505 val xncsArgs = List.mapPartial (fn (x, n, NONE) => NONE
adamc@165 1506 | (x, n, SOME t) => SOME (x, n, t)) xncs
adamc@165 1507 in
adamc@165 1508 box [string "enum",
adamc@165 1509 space,
adamc@316 1510 string ("__uwe_" ^ ident x ^ "_" ^ Int.toString n),
adamc@165 1511 space,
adamc@165 1512 string "{",
adamc@165 1513 space,
adamc@316 1514 p_list_sep (box [string ",", space]) (fn (x, n, _) =>
adamc@316 1515 string ("__uwc_" ^ ident x ^ "_" ^ Int.toString n)) xncs,
adamc@165 1516 space,
adamc@165 1517 string "};",
adamc@165 1518 newline,
adamc@165 1519 newline,
adamc@165 1520 string "struct",
adamc@165 1521 space,
adamc@316 1522 string ("__uwd_" ^ ident x ^ "_" ^ Int.toString n),
adamc@165 1523 space,
adamc@165 1524 string "{",
adamc@165 1525 newline,
adamc@165 1526 string "enum",
adamc@165 1527 space,
adamc@316 1528 string ("__uwe_" ^ ident x ^ "_" ^ Int.toString n),
adamc@165 1529 space,
adamc@165 1530 string "tag;",
adamc@165 1531 newline,
adamc@165 1532 box (case xncsArgs of
adamc@165 1533 [] => []
adamc@165 1534 | _ => [string "union",
adamc@165 1535 space,
adamc@165 1536 string "{",
adamc@165 1537 newline,
adamc@165 1538 p_list_sep newline (fn (x, n, t) => box [p_typ env t,
adamc@165 1539 space,
adamc@316 1540 string ("uw_" ^ ident x),
adamc@165 1541 string ";"]) xncsArgs,
adamc@165 1542 newline,
adamc@165 1543 string "}",
adamc@165 1544 space,
adamc@165 1545 string "data;",
adamc@165 1546 newline]),
adamc@165 1547 string "};"]
adamc@188 1548 end
adamc@29 1549
adamc@196 1550 | DDatatypeForward _ => box []
adamc@196 1551
adamc@29 1552 | DVal (x, n, t, e) =>
adamc@29 1553 box [p_typ env t,
adamc@29 1554 space,
adamc@316 1555 string ("__uwn_" ^ ident x ^ "_" ^ Int.toString n),
adamc@29 1556 space,
adamc@29 1557 string "=",
adamc@29 1558 space,
adamc@29 1559 p_exp env e,
adamc@29 1560 string ";"]
adamc@129 1561 | DFun vi => p_fun env vi
adamc@129 1562 | DFunRec vis =>
adamc@29 1563 let
adamc@129 1564 val env = E.declBinds env dAll
adamc@29 1565 in
adamc@129 1566 box [p_list_sep newline (fn (fx, n, args, ran, _) =>
adamc@129 1567 box [string "static",
adamc@129 1568 space,
adamc@129 1569 p_typ env ran,
adamc@129 1570 space,
adamc@316 1571 string ("__uwn_" ^ ident fx ^ "_" ^ Int.toString n),
adamc@311 1572 string "(uw_context,",
adamc@129 1573 space,
adamc@129 1574 p_list_sep (box [string ",", space])
adamc@129 1575 (fn (_, dom) => p_typ env dom) args,
adamc@129 1576 string ");"]) vis,
adamc@29 1577 newline,
adamc@129 1578 p_list_sep newline (p_fun env) vis,
adamc@129 1579 newline]
adamc@29 1580 end
adamc@273 1581 | DTable (x, _) => box [string "/* SQL table ",
adamc@273 1582 string x,
adamc@273 1583 string " */",
adamc@273 1584 newline]
adamc@338 1585 | DSequence x => box [string "/* SQL sequence ",
adamc@338 1586 string x,
adamc@338 1587 string " */",
adamc@338 1588 newline]
adamc@311 1589 | DDatabase s => box [string "static void uw_db_validate(uw_context);",
adamc@272 1590 newline,
adamc@311 1591 string "static void uw_db_prepare(uw_context);",
adamc@282 1592 newline,
adamc@275 1593 newline,
adamc@311 1594 string "void uw_db_init(uw_context ctx) {",
adamc@273 1595 newline,
adamc@272 1596 string "PGconn *conn = PQconnectdb(\"",
adamc@272 1597 string (String.toString s),
adamc@272 1598 string "\");",
adamc@272 1599 newline,
adamc@311 1600 string "if (conn == NULL) uw_error(ctx, BOUNDED_RETRY, ",
adamc@272 1601 string "\"libpq can't allocate a connection.\");",
adamc@272 1602 newline,
adamc@272 1603 string "if (PQstatus(conn) != CONNECTION_OK) {",
adamc@272 1604 newline,
adamc@272 1605 box [string "char msg[1024];",
adamc@272 1606 newline,
adamc@272 1607 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@272 1608 newline,
adamc@272 1609 string "msg[1023] = 0;",
adamc@272 1610 newline,
adamc@272 1611 string "PQfinish(conn);",
adamc@272 1612 newline,
adamc@311 1613 string "uw_error(ctx, BOUNDED_RETRY, ",
adamc@272 1614 string "\"Connection to Postgres server failed: %s\", msg);"],
adamc@272 1615 newline,
adamc@272 1616 string "}",
adamc@272 1617 newline,
adamc@311 1618 string "uw_set_db(ctx, conn);",
adamc@272 1619 newline,
adamc@311 1620 string "uw_db_validate(ctx);",
adamc@275 1621 newline,
adamc@311 1622 string "uw_db_prepare(ctx);",
adamc@282 1623 newline,
adamc@272 1624 string "}",
adamc@272 1625 newline,
adamc@272 1626 newline,
adamc@311 1627 string "void uw_db_close(uw_context ctx) {",
adamc@272 1628 newline,
adamc@311 1629 string "PQfinish(uw_get_db(ctx));",
adamc@272 1630 newline,
adamc@272 1631 string "}",
adamc@424 1632 newline,
adamc@424 1633 newline,
adamc@424 1634
adamc@424 1635 string "int uw_db_begin(uw_context ctx) {",
adamc@424 1636 newline,
adamc@424 1637 string "PGconn *conn = uw_get_db(ctx);",
adamc@424 1638 newline,
adamc@424 1639 string "PGresult *res = PQexec(conn, \"BEGIN\");",
adamc@424 1640 newline,
adamc@424 1641 newline,
adamc@424 1642 string "if (res == NULL) return 1;",
adamc@424 1643 newline,
adamc@424 1644 newline,
adamc@424 1645 string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@424 1646 box [string "PQclear(res);",
adamc@424 1647 newline,
adamc@424 1648 string "return 1;",
adamc@424 1649 newline],
adamc@424 1650 string "}",
adamc@424 1651 newline,
adamc@424 1652 string "return 0;",
adamc@424 1653 newline,
adamc@424 1654 string "}",
adamc@424 1655 newline,
adamc@424 1656 newline,
adamc@424 1657
adamc@424 1658 string "int uw_db_commit(uw_context ctx) {",
adamc@424 1659 newline,
adamc@424 1660 string "PGconn *conn = uw_get_db(ctx);",
adamc@424 1661 newline,
adamc@424 1662 string "PGresult *res = PQexec(conn, \"COMMIT\");",
adamc@424 1663 newline,
adamc@424 1664 newline,
adamc@424 1665 string "if (res == NULL) return 1;",
adamc@424 1666 newline,
adamc@424 1667 newline,
adamc@424 1668 string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@424 1669 box [string "PQclear(res);",
adamc@424 1670 newline,
adamc@424 1671 string "return 1;",
adamc@424 1672 newline],
adamc@424 1673 string "}",
adamc@424 1674 newline,
adamc@424 1675 string "return 0;",
adamc@424 1676 newline,
adamc@424 1677 string "}",
adamc@424 1678 newline,
adamc@424 1679 newline,
adamc@424 1680
adamc@424 1681 string "int uw_db_rollback(uw_context ctx) {",
adamc@424 1682 newline,
adamc@424 1683 string "PGconn *conn = uw_get_db(ctx);",
adamc@424 1684 newline,
adamc@424 1685 string "PGresult *res = PQexec(conn, \"ROLLBACK\");",
adamc@424 1686 newline,
adamc@424 1687 newline,
adamc@424 1688 string "if (res == NULL) return 1;",
adamc@424 1689 newline,
adamc@424 1690 newline,
adamc@424 1691 string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@424 1692 box [string "PQclear(res);",
adamc@424 1693 newline,
adamc@424 1694 string "return 1;",
adamc@424 1695 newline],
adamc@424 1696 string "}",
adamc@424 1697 newline,
adamc@424 1698 string "return 0;",
adamc@424 1699 newline,
adamc@424 1700 string "}",
adamc@272 1701 newline]
adamc@29 1702
adamc@467 1703 | DPreparedStatements [] =>
adamc@467 1704 box [string "static void uw_db_prepare(uw_context ctx) {",
adamc@467 1705 newline,
adamc@467 1706 string "}"]
adamc@282 1707 | DPreparedStatements ss =>
adamc@311 1708 box [string "static void uw_db_prepare(uw_context ctx) {",
adamc@282 1709 newline,
adamc@311 1710 string "PGconn *conn = uw_get_db(ctx);",
adamc@282 1711 newline,
adamc@282 1712 string "PGresult *res;",
adamc@282 1713 newline,
adamc@282 1714 newline,
adamc@282 1715
adamc@282 1716 p_list_sepi newline (fn i => fn (s, n) =>
adamc@311 1717 box [string "res = PQprepare(conn, \"uw",
adamc@282 1718 string (Int.toString i),
adamc@282 1719 string "\", \"",
adamc@282 1720 string (String.toString s),
adamc@282 1721 string "\", ",
adamc@282 1722 string (Int.toString n),
adamc@282 1723 string ", NULL);",
adamc@282 1724 newline,
adamc@282 1725 string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@282 1726 newline,
adamc@282 1727 box [string "char msg[1024];",
adamc@282 1728 newline,
adamc@282 1729 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@282 1730 newline,
adamc@282 1731 string "msg[1023] = 0;",
adamc@282 1732 newline,
adamc@282 1733 string "PQclear(res);",
adamc@282 1734 newline,
adamc@282 1735 string "PQfinish(conn);",
adamc@282 1736 newline,
adamc@311 1737 string "uw_error(ctx, FATAL, \"Unable to create prepared statement:\\n",
adamc@282 1738 string (String.toString s),
adamc@282 1739 string "\\n%s\", msg);",
adamc@282 1740 newline],
adamc@282 1741 string "}",
adamc@282 1742 newline,
adamc@282 1743 string "PQclear(res);",
adamc@282 1744 newline])
adamc@282 1745 ss,
adamc@282 1746
adamc@282 1747 string "}"]
adamc@282 1748
adamc@144 1749 datatype 'a search =
adamc@144 1750 Found of 'a
adamc@144 1751 | NotFound
adamc@144 1752 | Error
adamc@120 1753
adamc@467 1754 fun p_sqltype'' env (tAll as (t, loc)) =
adamc@275 1755 case t of
adamc@275 1756 TFfi ("Basis", "int") => "int8"
adamc@275 1757 | TFfi ("Basis", "float") => "float8"
adamc@275 1758 | TFfi ("Basis", "string") => "text"
adamc@275 1759 | TFfi ("Basis", "bool") => "bool"
adamc@438 1760 | TFfi ("Basis", "time") => "timestamp"
adamc@275 1761 | _ => (ErrorMsg.errorAt loc "Don't know SQL equivalent of type";
adamc@275 1762 Print.eprefaces' [("Type", p_typ env tAll)];
adamc@275 1763 "ERROR")
adamc@275 1764
adamc@467 1765 fun p_sqltype' env (tAll as (t, loc)) =
adamc@467 1766 case t of
adamc@467 1767 (TOption t, _) => p_sqltype'' env t
adamc@467 1768 | _ => p_sqltype'' env t ^ " NOT NULL"
adamc@467 1769
adamc@275 1770 fun p_sqltype env t = string (p_sqltype' env t)
adamc@101 1771
adamc@467 1772 fun p_sqltype_base' env t =
adamc@467 1773 case t of
adamc@467 1774 (TOption t, _) => p_sqltype'' env t
adamc@467 1775 | _ => p_sqltype'' env t
adamc@467 1776
adamc@467 1777 fun p_sqltype_base env t = string (p_sqltype_base' env t)
adamc@467 1778
adamc@467 1779 fun is_not_null t =
adamc@467 1780 case t of
adamc@467 1781 (TOption _, _) => false
adamc@467 1782 | _ => true
adamc@467 1783
adamc@101 1784 fun p_file env (ds, ps) =
adamc@29 1785 let
adamc@101 1786 val (pds, env) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 1787 (p_decl env d,
adamc@31 1788 E.declBinds env d))
adamc@101 1789 env ds
adamc@144 1790
adamc@144 1791 val fields = foldl (fn ((ek, _, _, ts), fields) =>
adamc@144 1792 case ek of
adamc@144 1793 Core.Link => fields
adamc@144 1794 | Core.Action =>
adamc@280 1795 case List.nth (ts, length ts - 2) of
adamc@144 1796 (TRecord i, _) =>
adamc@144 1797 let
adamc@144 1798 val xts = E.lookupStruct env i
adamc@144 1799 val xtsSet = SS.addList (SS.empty, map #1 xts)
adamc@144 1800 in
adamc@144 1801 foldl (fn ((x, _), fields) =>
adamc@144 1802 let
adamc@144 1803 val xtsSet' = Option.getOpt (SM.find (fields, x), SS.empty)
adamc@144 1804 in
adamc@144 1805 SM.insert (fields, x, SS.union (SS.delete (xtsSet, x),
adamc@144 1806 xtsSet'))
adamc@144 1807 end) fields xts
adamc@144 1808 end
adamc@144 1809 | _ => raise Fail "CjrPrint: Last argument of action isn't record")
adamc@144 1810 SM.empty ps
adamc@144 1811
adamc@144 1812 val fnums = SM.foldli (fn (x, xs, fnums) =>
adamc@144 1813 let
adamc@144 1814 val unusable = SS.foldl (fn (x', unusable) =>
adamc@144 1815 case SM.find (fnums, x') of
adamc@144 1816 NONE => unusable
adamc@144 1817 | SOME n => IS.add (unusable, n))
adamc@144 1818 IS.empty xs
adamc@144 1819
adamc@144 1820 fun findAvailable n =
adamc@144 1821 if IS.member (unusable, n) then
adamc@144 1822 findAvailable (n + 1)
adamc@144 1823 else
adamc@144 1824 n
adamc@144 1825 in
adamc@144 1826 SM.insert (fnums, x, findAvailable 0)
adamc@144 1827 end)
adamc@144 1828 SM.empty fields
adamc@144 1829
adamc@144 1830 fun makeSwitch (fnums, i) =
adamc@144 1831 case SM.foldl (fn (n, NotFound) => Found n
adamc@144 1832 | (n, Error) => Error
adamc@144 1833 | (n, Found n') => if n = n' then
adamc@144 1834 Found n'
adamc@144 1835 else
adamc@144 1836 Error) NotFound fnums of
adamc@144 1837 NotFound => box [string "return",
adamc@144 1838 space,
adamc@144 1839 string "-1;"]
adamc@144 1840 | Found n => box [string "return",
adamc@144 1841 space,
adamc@144 1842 string (Int.toString n),
adamc@144 1843 string ";"]
adamc@144 1844 | Error =>
adamc@144 1845 let
adamc@144 1846 val cmap = SM.foldli (fn (x, n, cmap) =>
adamc@144 1847 let
adamc@144 1848 val ch = if i < size x then
adamc@144 1849 String.sub (x, i)
adamc@144 1850 else
adamc@144 1851 chr 0
adamc@144 1852
adamc@144 1853 val fnums = case CM.find (cmap, ch) of
adamc@144 1854 NONE => SM.empty
adamc@144 1855 | SOME fnums => fnums
adamc@144 1856 val fnums = SM.insert (fnums, x, n)
adamc@144 1857 in
adamc@144 1858 CM.insert (cmap, ch, fnums)
adamc@144 1859 end)
adamc@144 1860 CM.empty fnums
adamc@144 1861
adamc@144 1862 val cmap = CM.listItemsi cmap
adamc@144 1863 in
adamc@144 1864 case cmap of
adamc@144 1865 [(_, fnums)] =>
adamc@144 1866 box [string "if",
adamc@144 1867 space,
adamc@144 1868 string "(name[",
adamc@144 1869 string (Int.toString i),
adamc@144 1870 string "]",
adamc@144 1871 space,
adamc@144 1872 string "==",
adamc@144 1873 space,
adamc@144 1874 string "0)",
adamc@144 1875 space,
adamc@144 1876 string "return",
adamc@144 1877 space,
adamc@144 1878 string "-1;",
adamc@144 1879 newline,
adamc@144 1880 makeSwitch (fnums, i+1)]
adamc@144 1881 | _ =>
adamc@144 1882 box [string "switch",
adamc@144 1883 space,
adamc@144 1884 string "(name[",
adamc@144 1885 string (Int.toString i),
adamc@144 1886 string "])",
adamc@144 1887 space,
adamc@144 1888 string "{",
adamc@144 1889 newline,
adamc@144 1890 box (map (fn (ch, fnums) =>
adamc@144 1891 box [string "case",
adamc@144 1892 space,
adamc@144 1893 if ch = chr 0 then
adamc@144 1894 string "0:"
adamc@144 1895 else
adamc@144 1896 box [string "'",
adamc@144 1897 string (Char.toString ch),
adamc@144 1898 string "':"],
adamc@144 1899 newline,
adamc@144 1900 makeSwitch (fnums, i+1),
adamc@144 1901 newline]) cmap),
adamc@144 1902 string "default:",
adamc@144 1903 newline,
adamc@144 1904 string "return",
adamc@144 1905 space,
adamc@144 1906 string "-1;",
adamc@144 1907 newline,
adamc@144 1908 string "}"]
adamc@144 1909 end
adamc@144 1910
adamc@144 1911 fun p_page (ek, s, n, ts) =
adamc@144 1912 let
adamc@144 1913 val (ts, defInputs, inputsVar) =
adamc@144 1914 case ek of
adamc@314 1915 Core.Link => (List.take (ts, length ts - 1), string "", string "")
adamc@144 1916 | Core.Action =>
adamc@280 1917 case List.nth (ts, length ts - 2) of
adamc@144 1918 (TRecord i, _) =>
adamc@144 1919 let
adamc@144 1920 val xts = E.lookupStruct env i
adamc@144 1921 in
adamc@280 1922 (List.take (ts, length ts - 2),
adamc@144 1923 box [box (map (fn (x, t) => box [p_typ env t,
adamc@144 1924 space,
adamc@311 1925 string "uw_input_",
adamc@316 1926 p_ident x,
adamc@144 1927 string ";",
adamc@144 1928 newline]) xts),
adamc@144 1929 newline,
adamc@144 1930 box (map (fn (x, t) =>
adamc@144 1931 let
adamc@144 1932 val n = case SM.find (fnums, x) of
adamc@144 1933 NONE => raise Fail "CjrPrint: Can't find in fnums"
adamc@144 1934 | SOME n => n
adamc@190 1935
adamc@190 1936 val f = case t of
adamc@190 1937 (TFfi ("Basis", "bool"), _) => "optional_"
adamc@190 1938 | _ => ""
adamc@144 1939 in
adamc@311 1940 box [string "request = uw_get_",
adamc@190 1941 string f,
adamc@190 1942 string "input(ctx, ",
adamc@144 1943 string (Int.toString n),
adamc@144 1944 string ");",
adamc@144 1945 newline,
adamc@433 1946 string "if (request == NULL)",
adamc@144 1947 newline,
adamc@433 1948 box [string "uw_error(ctx, FATAL, \"Missing input ",
adamc@144 1949 string x,
adamc@433 1950 string "\");"],
adamc@144 1951 newline,
adamc@311 1952 string "uw_input_",
adamc@316 1953 p_ident x,
adamc@144 1954 space,
adamc@144 1955 string "=",
adamc@144 1956 space,
adamc@463 1957 unurlify env t,
adamc@144 1958 string ";",
adamc@144 1959 newline]
adamc@144 1960 end) xts),
adamc@311 1961 string "struct __uws_",
adamc@144 1962 string (Int.toString i),
adamc@144 1963 space,
adamc@311 1964 string "uw_inputs",
adamc@144 1965 space,
adamc@144 1966 string "= {",
adamc@144 1967 newline,
adamc@311 1968 box (map (fn (x, _) => box [string "uw_input_",
adamc@316 1969 p_ident x,
adamc@144 1970 string ",",
adamc@144 1971 newline]) xts),
adamc@144 1972 string "};",
adamc@144 1973 newline],
adamc@144 1974 box [string ",",
adamc@144 1975 space,
adamc@311 1976 string "uw_inputs"])
adamc@144 1977 end
adamc@144 1978
adamc@144 1979 | _ => raise Fail "CjrPrint: Last argument to an action isn't a record"
adamc@144 1980 in
adamc@144 1981 box [string "if (!strncmp(request, \"",
adamc@144 1982 string (String.toString s),
adamc@144 1983 string "\", ",
adamc@144 1984 string (Int.toString (size s)),
adamc@198 1985 string ") && (request[",
adamc@198 1986 string (Int.toString (size s)),
adamc@198 1987 string "] == 0 || request[",
adamc@198 1988 string (Int.toString (size s)),
adamc@198 1989 string "] == '/')) {",
adamc@144 1990 newline,
adamc@144 1991 string "request += ",
adamc@144 1992 string (Int.toString (size s)),
adamc@144 1993 string ";",
adamc@144 1994 newline,
adamc@144 1995 string "if (*request == '/') ++request;",
adamc@144 1996 newline,
adamc@144 1997 box [string "{",
adamc@144 1998 newline,
adamc@144 1999 box (ListUtil.mapi (fn (i, t) => box [p_typ env t,
adamc@144 2000 space,
adamc@144 2001 string "arg",
adamc@144 2002 string (Int.toString i),
adamc@144 2003 space,
adamc@144 2004 string "=",
adamc@144 2005 space,
adamc@463 2006 unurlify env t,
adamc@144 2007 string ";",
adamc@144 2008 newline]) ts),
adamc@144 2009 defInputs,
adamc@144 2010 p_enamed env n,
adamc@144 2011 string "(",
adamc@144 2012 p_list_sep (box [string ",", space])
adamc@144 2013 (fn x => x)
adamc@272 2014 (string "ctx"
adamc@280 2015 :: ListUtil.mapi (fn (i, _) => string ("arg" ^ Int.toString i)) ts),
adamc@144 2016 inputsVar,
adamc@311 2017 string ", uw_unit_v);",
adamc@144 2018 newline,
adamc@144 2019 string "return;",
adamc@144 2020 newline,
adamc@144 2021 string "}",
adamc@144 2022 newline,
adamc@144 2023 string "}"]
adamc@144 2024 ]
adamc@144 2025 end
adamc@144 2026
adamc@144 2027 val pds' = map p_page ps
adamc@275 2028
adamc@275 2029 val tables = List.mapPartial (fn (DTable (s, xts), _) => SOME (s, xts)
adamc@275 2030 | _ => NONE) ds
adamc@377 2031 val sequences = List.mapPartial (fn (DSequence s, _) => SOME s
adamc@377 2032 | _ => NONE) ds
adamc@275 2033
adamc@275 2034 val validate =
adamc@311 2035 box [string "static void uw_db_validate(uw_context ctx) {",
adamc@275 2036 newline,
adamc@311 2037 string "PGconn *conn = uw_get_db(ctx);",
adamc@275 2038 newline,
adamc@275 2039 string "PGresult *res;",
adamc@275 2040 newline,
adamc@275 2041 newline,
adamc@275 2042 p_list_sep newline
adamc@275 2043 (fn (s, xts) =>
adamc@275 2044 let
adamc@377 2045 val sl = CharVector.map Char.toLower s
adamc@377 2046
adamc@275 2047 val q = "SELECT COUNT(*) FROM pg_class WHERE relname = '"
adamc@377 2048 ^ sl ^ "'"
adamc@275 2049
adamc@275 2050 val q' = String.concat ["SELECT COUNT(*) FROM pg_attribute WHERE attrelid = (SELECT oid FROM pg_class WHERE relname = '",
adamc@377 2051 sl,
adamc@275 2052 "') AND (",
adamc@275 2053 String.concatWith " OR "
adamc@275 2054 (map (fn (x, t) =>
adamc@311 2055 String.concat ["(attname = 'uw_",
adamc@275 2056 CharVector.map
adamc@316 2057 Char.toLower (ident x),
adamc@275 2058 "' AND atttypid = (SELECT oid FROM pg_type",
adamc@275 2059 " WHERE typname = '",
adamc@467 2060 p_sqltype_base' env t,
adamc@467 2061 "') AND attnotnull = ",
adamc@467 2062 if is_not_null t then
adamc@467 2063 "TRUE"
adamc@467 2064 else
adamc@467 2065 "FALSE",
adamc@467 2066 ")"]) xts),
adamc@275 2067 ")"]
adamc@275 2068
adamc@275 2069 val q'' = String.concat ["SELECT COUNT(*) FROM pg_attribute WHERE attrelid = (SELECT oid FROM pg_class WHERE relname = '",
adamc@377 2070 sl,
adamc@325 2071 "') AND attname LIKE 'uw_%'"]
adamc@275 2072 in
adamc@275 2073 box [string "res = PQexec(conn, \"",
adamc@275 2074 string q,
adamc@275 2075 string "\");",
adamc@275 2076 newline,
adamc@275 2077 newline,
adamc@275 2078 string "if (res == NULL) {",
adamc@275 2079 newline,
adamc@275 2080 box [string "PQfinish(conn);",
adamc@275 2081 newline,
adamc@311 2082 string "uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 2083 newline],
adamc@275 2084 string "}",
adamc@275 2085 newline,
adamc@275 2086 newline,
adamc@275 2087 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 2088 newline,
adamc@275 2089 box [string "char msg[1024];",
adamc@275 2090 newline,
adamc@275 2091 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 2092 newline,
adamc@275 2093 string "msg[1023] = 0;",
adamc@275 2094 newline,
adamc@275 2095 string "PQclear(res);",
adamc@275 2096 newline,
adamc@275 2097 string "PQfinish(conn);",
adamc@275 2098 newline,
adamc@311 2099 string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 2100 string q,
adamc@275 2101 string "\\n%s\", msg);",
adamc@275 2102 newline],
adamc@275 2103 string "}",
adamc@275 2104 newline,
adamc@275 2105 newline,
adamc@275 2106 string "if (strcmp(PQgetvalue(res, 0, 0), \"1\")) {",
adamc@275 2107 newline,
adamc@275 2108 box [string "PQclear(res);",
adamc@275 2109 newline,
adamc@275 2110 string "PQfinish(conn);",
adamc@275 2111 newline,
adamc@311 2112 string "uw_error(ctx, FATAL, \"Table '",
adamc@275 2113 string s,
adamc@275 2114 string "' does not exist.\");",
adamc@275 2115 newline],
adamc@275 2116 string "}",
adamc@275 2117 newline,
adamc@275 2118 newline,
adamc@275 2119 string "PQclear(res);",
adamc@275 2120 newline,
adamc@275 2121
adamc@275 2122 string "res = PQexec(conn, \"",
adamc@275 2123 string q',
adamc@275 2124 string "\");",
adamc@275 2125 newline,
adamc@275 2126 newline,
adamc@275 2127 string "if (res == NULL) {",
adamc@275 2128 newline,
adamc@275 2129 box [string "PQfinish(conn);",
adamc@275 2130 newline,
adamc@311 2131 string "uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 2132 newline],
adamc@275 2133 string "}",
adamc@275 2134 newline,
adamc@275 2135 newline,
adamc@275 2136 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 2137 newline,
adamc@275 2138 box [string "char msg[1024];",
adamc@275 2139 newline,
adamc@275 2140 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 2141 newline,
adamc@275 2142 string "msg[1023] = 0;",
adamc@275 2143 newline,
adamc@275 2144 string "PQclear(res);",
adamc@275 2145 newline,
adamc@275 2146 string "PQfinish(conn);",
adamc@275 2147 newline,
adamc@311 2148 string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 2149 string q',
adamc@275 2150 string "\\n%s\", msg);",
adamc@275 2151 newline],
adamc@275 2152 string "}",
adamc@275 2153 newline,
adamc@275 2154 newline,
adamc@275 2155 string "if (strcmp(PQgetvalue(res, 0, 0), \"",
adamc@275 2156 string (Int.toString (length xts)),
adamc@275 2157 string "\")) {",
adamc@275 2158 newline,
adamc@275 2159 box [string "PQclear(res);",
adamc@275 2160 newline,
adamc@275 2161 string "PQfinish(conn);",
adamc@275 2162 newline,
adamc@311 2163 string "uw_error(ctx, FATAL, \"Table '",
adamc@275 2164 string s,
adamc@275 2165 string "' has the wrong column types.\");",
adamc@275 2166 newline],
adamc@275 2167 string "}",
adamc@275 2168 newline,
adamc@275 2169 newline,
adamc@275 2170 string "PQclear(res);",
adamc@275 2171 newline,
adamc@275 2172 newline,
adamc@275 2173
adamc@275 2174 string "res = PQexec(conn, \"",
adamc@275 2175 string q'',
adamc@275 2176 string "\");",
adamc@275 2177 newline,
adamc@275 2178 newline,
adamc@275 2179 string "if (res == NULL) {",
adamc@275 2180 newline,
adamc@275 2181 box [string "PQfinish(conn);",
adamc@275 2182 newline,
adamc@311 2183 string "uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 2184 newline],
adamc@275 2185 string "}",
adamc@275 2186 newline,
adamc@275 2187 newline,
adamc@275 2188 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 2189 newline,
adamc@275 2190 box [string "char msg[1024];",
adamc@275 2191 newline,
adamc@275 2192 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 2193 newline,
adamc@275 2194 string "msg[1023] = 0;",
adamc@275 2195 newline,
adamc@275 2196 string "PQclear(res);",
adamc@275 2197 newline,
adamc@275 2198 string "PQfinish(conn);",
adamc@275 2199 newline,
adamc@311 2200 string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 2201 string q'',
adamc@275 2202 string "\\n%s\", msg);",
adamc@275 2203 newline],
adamc@275 2204 string "}",
adamc@275 2205 newline,
adamc@275 2206 newline,
adamc@275 2207 string "if (strcmp(PQgetvalue(res, 0, 0), \"",
adamc@275 2208 string (Int.toString (length xts)),
adamc@275 2209 string "\")) {",
adamc@275 2210 newline,
adamc@275 2211 box [string "PQclear(res);",
adamc@275 2212 newline,
adamc@275 2213 string "PQfinish(conn);",
adamc@275 2214 newline,
adamc@311 2215 string "uw_error(ctx, FATAL, \"Table '",
adamc@275 2216 string s,
adamc@275 2217 string "' has extra columns.\");",
adamc@275 2218 newline],
adamc@275 2219 string "}",
adamc@275 2220 newline,
adamc@275 2221 newline,
adamc@275 2222 string "PQclear(res);",
adamc@275 2223 newline]
adamc@275 2224 end) tables,
adamc@377 2225
adamc@377 2226 p_list_sep newline
adamc@377 2227 (fn s =>
adamc@377 2228 let
adamc@377 2229 val sl = CharVector.map Char.toLower s
adamc@377 2230
adamc@377 2231 val q = "SELECT COUNT(*) FROM pg_class WHERE relname = '"
adamc@377 2232 ^ sl ^ "' AND relkind = 'S'"
adamc@377 2233 in
adamc@377 2234 box [string "res = PQexec(conn, \"",
adamc@377 2235 string q,
adamc@377 2236 string "\");",
adamc@377 2237 newline,
adamc@377 2238 newline,
adamc@377 2239 string "if (res == NULL) {",
adamc@377 2240 newline,
adamc@377 2241 box [string "PQfinish(conn);",
adamc@377 2242 newline,
adamc@377 2243 string "uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@377 2244 newline],
adamc@377 2245 string "}",
adamc@377 2246 newline,
adamc@377 2247 newline,
adamc@377 2248 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@377 2249 newline,
adamc@377 2250 box [string "char msg[1024];",
adamc@377 2251 newline,
adamc@377 2252 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@377 2253 newline,
adamc@377 2254 string "msg[1023] = 0;",
adamc@377 2255 newline,
adamc@377 2256 string "PQclear(res);",
adamc@377 2257 newline,
adamc@377 2258 string "PQfinish(conn);",
adamc@377 2259 newline,
adamc@377 2260 string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@377 2261 string q,
adamc@377 2262 string "\\n%s\", msg);",
adamc@377 2263 newline],
adamc@377 2264 string "}",
adamc@377 2265 newline,
adamc@377 2266 newline,
adamc@377 2267 string "if (strcmp(PQgetvalue(res, 0, 0), \"1\")) {",
adamc@377 2268 newline,
adamc@377 2269 box [string "PQclear(res);",
adamc@377 2270 newline,
adamc@377 2271 string "PQfinish(conn);",
adamc@377 2272 newline,
adamc@377 2273 string "uw_error(ctx, FATAL, \"Sequence '",
adamc@377 2274 string s,
adamc@377 2275 string "' does not exist.\");",
adamc@377 2276 newline],
adamc@377 2277 string "}",
adamc@377 2278 newline,
adamc@377 2279 newline,
adamc@377 2280 string "PQclear(res);",
adamc@377 2281 newline]
adamc@377 2282 end) sequences,
adamc@377 2283
adamc@275 2284 string "}"]
adamc@432 2285
adamc@432 2286 val hasDb = List.exists (fn (DDatabase _, _) => true | _ => false) ds
adamc@29 2287 in
adamc@144 2288 box [string "#include <stdio.h>",
adamc@144 2289 newline,
adamc@144 2290 string "#include <stdlib.h>",
adamc@144 2291 newline,
adamc@272 2292 string "#include <string.h>",
adamc@272 2293 newline,
adamc@390 2294 string "#include <math.h>",
adamc@390 2295 newline,
adamc@432 2296 if hasDb then
adamc@432 2297 box [string "#include <postgresql/libpq-fe.h>",
adamc@432 2298 newline]
adamc@432 2299 else
adamc@432 2300 box [],
adamc@144 2301 newline,
adamc@378 2302 string "#include \"",
adamc@378 2303 string (OS.Path.joinDirFile {dir = Config.includ,
adamc@378 2304 file = "urweb.h"}),
adamc@378 2305 string "\"",
adamc@101 2306 newline,
adamc@101 2307 newline,
adamc@101 2308 p_list_sep newline (fn x => x) pds,
adamc@101 2309 newline,
adamc@311 2310 string "int uw_inputs_len = ",
adamc@144 2311 string (Int.toString (SM.foldl Int.max 0 fnums + 1)),
adamc@144 2312 string ";",
adamc@144 2313 newline,
adamc@144 2314 newline,
adamc@311 2315 string "int uw_input_num(char *name) {",
adamc@144 2316 newline,
adamc@144 2317 makeSwitch (fnums, 0),
adamc@144 2318 string "}",
adamc@144 2319 newline,
adamc@144 2320 newline,
adamc@311 2321 string "void uw_handle(uw_context ctx, char *request) {",
adamc@101 2322 newline,
adamc@101 2323 p_list_sep newline (fn x => x) pds',
adamc@101 2324 newline,
adamc@387 2325 string "uw_error(ctx, FATAL, \"Unknown page\");",
adamc@387 2326 newline,
adamc@101 2327 string "}",
adamc@275 2328 newline,
adamc@275 2329 newline,
adamc@432 2330 if hasDb then
adamc@432 2331 validate
adamc@432 2332 else
adamc@432 2333 box [],
adamc@376 2334 newline,
adamc@376 2335 if List.exists (fn (DDatabase _, _) => true | _ => false) ds then
adamc@376 2336 box []
adamc@376 2337 else
adamc@376 2338 box [newline,
adamc@376 2339 string "void uw_db_init(uw_context ctx) { };",
adamc@424 2340 newline,
adamc@424 2341 string "int uw_db_begin(uw_context ctx) { return 0; };",
adamc@424 2342 newline,
adamc@424 2343 string "int uw_db_commit(uw_context ctx) { return 0; };",
adamc@424 2344 newline,
adamc@424 2345 string "int uw_db_rollback(uw_context ctx) { return 0; };",
adamc@376 2346 newline]]
adamc@29 2347 end
adamc@29 2348
adamc@274 2349 fun p_sql env (ds, _) =
adamc@274 2350 let
adamc@274 2351 val (pps, _) = ListUtil.foldlMap
adamc@274 2352 (fn (dAll as (d, _), env) =>
adamc@274 2353 let
adamc@274 2354 val pp = case d of
adamc@274 2355 DTable (s, xts) =>
adamc@274 2356 box [string "CREATE TABLE ",
adamc@274 2357 string s,
adamc@274 2358 string "(",
adamc@274 2359 p_list (fn (x, t) =>
adamc@311 2360 box [string "uw_",
adamc@275 2361 string (CharVector.map Char.toLower x),
adamc@274 2362 space,
adamc@467 2363 p_sqltype env (t, ErrorMsg.dummySpan)]) xts,
adamc@274 2364 string ");",
adamc@274 2365 newline,
adamc@274 2366 newline]
adamc@338 2367 | DSequence s =>
adamc@338 2368 box [string "CREATE SEQUENCE ",
adamc@338 2369 string s,
adamc@338 2370 string ";",
adamc@338 2371 newline,
adamc@338 2372 newline]
adamc@274 2373 | _ => box []
adamc@274 2374 in
adamc@274 2375 (pp, E.declBinds env dAll)
adamc@274 2376 end)
adamc@274 2377 env ds
adamc@274 2378 in
adamc@274 2379 box pps
adamc@274 2380 end
adamc@274 2381
adamc@29 2382 end