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annotate src/cjr_print.sml @ 318:60907c06b4c4

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Optimization removes linear let-bindings of impure expressions
author Adam Chlipala <adamc@hcoop.net>
date Thu, 11 Sep 2008 11:30:39 -0400
parents 04ebfe929a98
children aa89b73d83e4
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@282 428
adamc@282 429 | _ => raise Fail "CjrPrint: getPargs"
adamc@282 430
adamc@282 431 fun p_ensql t e =
adamc@282 432 case t of
adamc@311 433 Int => box [string "uw_Basis_attrifyInt(ctx, ", e, string ")"]
adamc@311 434 | Float => box [string "uw_Basis_attrifyFloat(ctx, ", e, string ")"]
adamc@282 435 | String => e
adamc@295 436 | Bool => box [string "(", e, string " ? \"TRUE\" : \"FALSE\")"]
adamc@282 437
adamc@282 438 fun p_ensql_len t e =
adamc@282 439 case t of
adamc@311 440 Int => string "sizeof(uw_Basis_int)"
adamc@311 441 | Float => string "sizeof(uw_Basis_float)"
adamc@282 442 | String => box [string "strlen(", e, string ")"]
adamc@311 443 | Bool => string "sizeof(uw_Basis_bool)"
adamc@282 444
adamc@182 445 fun p_exp' par env (e, loc) =
adamc@29 446 case e of
adamc@276 447 EPrim p => Prim.p_t_GCC p
adamc@29 448 | ERel n => p_rel env n
adamc@109 449 | ENamed n => p_enamed env n
adamc@188 450 | ECon (Enum, pc, _) => p_patCon env pc
adamc@198 451 | ECon (Option, pc, NONE) => string "NULL"
adamc@198 452 | ECon (Option, pc, SOME e) =>
adamc@198 453 let
adamc@198 454 val to = case pc of
adamc@198 455 PConVar n => #2 (E.lookupConstructor env n)
adamc@198 456 | PConFfi {arg, ...} => arg
adamc@198 457
adamc@198 458 val t = case to of
adamc@198 459 NONE => raise Fail "CjrPrint: ECon argument status mismatch"
adamc@198 460 | SOME t => t
adamc@198 461 in
adamc@198 462 case #1 t of
adamc@198 463 TDatatype _ => p_exp' par env e
adamc@199 464 | TFfi ("Basis", "string") => p_exp' par env e
adamc@198 465 | _ => box [string "({",
adamc@198 466 newline,
adamc@198 467 p_typ env t,
adamc@198 468 space,
adamc@198 469 string "*tmp",
adamc@198 470 space,
adamc@198 471 string "=",
adamc@198 472 space,
adamc@311 473 string "uw_malloc(ctx, sizeof(",
adamc@198 474 p_typ env t,
adamc@198 475 string "));",
adamc@198 476 newline,
adamc@198 477 string "*tmp",
adamc@198 478 space,
adamc@198 479 string "=",
adamc@198 480 p_exp' par env e,
adamc@198 481 string ";",
adamc@198 482 newline,
adamc@198 483 string "tmp;",
adamc@198 484 newline,
adamc@198 485 string "})"]
adamc@198 486 end
adamc@188 487 | ECon (Default, pc, eo) =>
adamc@181 488 let
adamc@196 489 val (xd, xc, xn) = patConInfo env pc
adamc@181 490 in
adamc@182 491 box [string "({",
adamc@181 492 newline,
adamc@181 493 string "struct",
adamc@181 494 space,
adamc@185 495 string xd,
adamc@181 496 space,
adamc@181 497 string "*tmp",
adamc@181 498 space,
adamc@181 499 string "=",
adamc@181 500 space,
adamc@311 501 string "uw_malloc(ctx, sizeof(struct ",
adamc@185 502 string xd,
adamc@181 503 string "));",
adamc@181 504 newline,
adamc@181 505 string "tmp->tag",
adamc@181 506 space,
adamc@181 507 string "=",
adamc@181 508 space,
adamc@185 509 string xc,
adamc@181 510 string ";",
adamc@181 511 newline,
adamc@181 512 case eo of
adamc@181 513 NONE => box []
adamc@185 514 | SOME e => box [string "tmp->data.",
adamc@196 515 string xn,
adamc@181 516 space,
adamc@181 517 string "=",
adamc@181 518 space,
adamc@181 519 p_exp env e,
adamc@181 520 string ";",
adamc@181 521 newline],
adamc@181 522 string "tmp;",
adamc@181 523 newline,
adamc@181 524 string "})"]
adamc@181 525 end
adamc@297 526 | ENone _ => string "NULL"
adamc@290 527 | ESome (t, e) =>
adamc@290 528 (case #1 t of
adamc@290 529 TDatatype _ => p_exp' par env e
adamc@290 530 | TFfi ("Basis", "string") => p_exp' par env e
adamc@290 531 | _ => box [string "({",
adamc@290 532 newline,
adamc@290 533 p_typ env t,
adamc@290 534 space,
adamc@290 535 string "*tmp",
adamc@290 536 space,
adamc@290 537 string "=",
adamc@290 538 space,
adamc@311 539 string "uw_malloc(ctx, sizeof(",
adamc@290 540 p_typ env t,
adamc@290 541 string "));",
adamc@290 542 newline,
adamc@290 543 string "*tmp",
adamc@290 544 space,
adamc@290 545 string "=",
adamc@290 546 p_exp' par env e,
adamc@290 547 string ";",
adamc@290 548 newline,
adamc@290 549 string "tmp;",
adamc@290 550 newline,
adamc@290 551 string "})"])
adamc@109 552
adamc@316 553 | EFfi (m, x) => box [string "uw_", p_ident m, string "_", p_ident x]
adamc@283 554 | EError (e, t) =>
adamc@283 555 box [string "({",
adamc@283 556 newline,
adamc@283 557 p_typ env t,
adamc@283 558 space,
adamc@283 559 string "tmp;",
adamc@283 560 newline,
adamc@311 561 string "uw_error(ctx, FATAL, \"",
adamc@292 562 string (ErrorMsg.spanToString loc),
adamc@292 563 string ": %s\", ",
adamc@283 564 p_exp env e,
adamc@283 565 string ");",
adamc@283 566 newline,
adamc@283 567 string "tmp;",
adamc@283 568 newline,
adamc@283 569 string "})"]
adamc@311 570 | EFfiApp (m, x, es) => box [string "uw_",
adamc@316 571 p_ident m,
adamc@53 572 string "_",
adamc@316 573 p_ident x,
adamc@117 574 string "(ctx, ",
adamc@53 575 p_list (p_exp env) es,
adamc@53 576 string ")"]
adamc@316 577 | EApp (f, args) =>
adamc@316 578 parenIf par (box [p_exp' true env f,
adamc@316 579 string "(ctx,",
adamc@316 580 space,
adamc@316 581 p_list_sep (box [string ",", space]) (p_exp env) args,
adamc@316 582 string ")"])
adamc@29 583
adamc@29 584 | ERecord (i, xes) => box [string "({",
adamc@29 585 space,
adamc@29 586 string "struct",
adamc@29 587 space,
adamc@311 588 string ("__uws_" ^ Int.toString i),
adamc@29 589 space,
adamc@181 590 string "tmp",
adamc@29 591 space,
adamc@29 592 string "=",
adamc@29 593 space,
adamc@29 594 string "{",
adamc@29 595 p_list (fn (_, e) =>
adamc@29 596 p_exp env e) xes,
adamc@29 597 string "};",
adamc@29 598 space,
adamc@181 599 string "tmp;",
adamc@29 600 space,
adamc@29 601 string "})" ]
adamc@29 602 | EField (e, x) =>
adamc@29 603 box [p_exp' true env e,
adamc@311 604 string ".__uwf_",
adamc@316 605 p_ident x]
adamc@29 606
adamc@182 607 | ECase (e, pes, {disc, result}) =>
adamc@182 608 let
adamc@182 609 val final = newGoto ()
adamc@182 610
adamc@182 611 val body = foldl (fn ((p, e), body) =>
adamc@182 612 let
adamc@182 613 val exit = newGoto ()
adamc@182 614 val (pr, _) = p_pat_preamble env p
adamc@182 615 val (p, env) = p_pat (env,
adamc@182 616 box [string "goto",
adamc@182 617 space,
adamc@182 618 exit,
adamc@182 619 string ";"],
adamc@182 620 0) p
adamc@182 621 in
adamc@182 622 box [body,
adamc@182 623 box [string "{",
adamc@182 624 newline,
adamc@182 625 pr,
adamc@182 626 newline,
adamc@182 627 p,
adamc@182 628 newline,
adamc@182 629 string "result",
adamc@182 630 space,
adamc@182 631 string "=",
adamc@182 632 space,
adamc@182 633 p_exp env e,
adamc@182 634 string ";",
adamc@182 635 newline,
adamc@182 636 string "goto",
adamc@182 637 space,
adamc@182 638 final,
adamc@182 639 string ";",
adamc@182 640 newline,
adamc@182 641 string "}"],
adamc@182 642 newline,
adamc@182 643 exit,
adamc@182 644 string ":",
adamc@182 645 newline]
adamc@182 646 end) (box []) pes
adamc@182 647 in
adamc@182 648 box [string "({",
adamc@182 649 newline,
adamc@182 650 p_typ env disc,
adamc@182 651 space,
adamc@182 652 string "disc0",
adamc@182 653 space,
adamc@182 654 string "=",
adamc@182 655 space,
adamc@182 656 p_exp env e,
adamc@182 657 string ";",
adamc@182 658 newline,
adamc@182 659 p_typ env result,
adamc@182 660 space,
adamc@182 661 string "result;",
adamc@182 662 newline,
adamc@182 663 body,
adamc@311 664 string "uw_error(ctx, FATAL, \"",
adamc@182 665 string (ErrorMsg.spanToString loc),
adamc@182 666 string ": pattern match failure\");",
adamc@182 667 newline,
adamc@182 668 final,
adamc@182 669 string ":",
adamc@182 670 space,
adamc@182 671 string "result;",
adamc@182 672 newline,
adamc@182 673 string "})"]
adamc@182 674 end
adamc@181 675
adamc@311 676 | EWrite e => box [string "(uw_write(ctx, ",
adamc@102 677 p_exp env e,
adamc@311 678 string "), uw_unit_v)"]
adamc@102 679
adamc@106 680 | ESeq (e1, e2) => box [string "(",
adamc@106 681 p_exp env e1,
adamc@106 682 string ",",
adamc@106 683 space,
adamc@106 684 p_exp env e2,
adamc@106 685 string ")"]
adamc@269 686 | ELet (x, t, e1, e2) => box [string "({",
adamc@269 687 newline,
adamc@269 688 p_typ env t,
adamc@269 689 space,
adamc@311 690 string "__uwr_",
adamc@316 691 p_ident x,
adamc@272 692 string "_",
adamc@272 693 string (Int.toString (E.countERels env)),
adamc@269 694 space,
adamc@269 695 string "=",
adamc@269 696 space,
adamc@269 697 p_exp env e1,
adamc@269 698 string ";",
adamc@269 699 newline,
adamc@269 700 p_exp (E.pushERel env x t) e2,
adamc@269 701 string ";",
adamc@269 702 newline,
adamc@269 703 string "})"]
adamc@269 704
adamc@282 705 | EQuery {exps, tables, rnum, state, query, body, initial, prepared} =>
adamc@278 706 let
adamc@316 707 val exps = map (fn (x, t) => ("__uwf_" ^ ident x, t)) exps
adamc@278 708 val tables = ListUtil.mapConcat (fn (x, xts) =>
adamc@316 709 map (fn (x', t) => ("__uwf_" ^ ident x ^ ".__uwf_" ^ ident x', t)) xts)
adamc@278 710 tables
adamc@278 711
adamc@278 712 val outputs = exps @ tables
adamc@278 713 in
adamc@278 714 box [string "({",
adamc@278 715 newline,
adamc@311 716 string "PGconn *conn = uw_get_db(ctx);",
adamc@278 717 newline,
adamc@282 718 case prepared of
adamc@282 719 NONE => box [string "char *query = ",
adamc@282 720 p_exp env query,
adamc@282 721 string ";",
adamc@282 722 newline]
adamc@282 723 | SOME _ =>
adamc@282 724 let
adamc@282 725 val ets = getPargs query
adamc@282 726 in
adamc@282 727 box [p_list_sepi newline
adamc@282 728 (fn i => fn (e, t) =>
adamc@282 729 box [p_sql_type t,
adamc@282 730 space,
adamc@282 731 string "arg",
adamc@282 732 string (Int.toString (i + 1)),
adamc@282 733 space,
adamc@282 734 string "=",
adamc@282 735 space,
adamc@282 736 p_exp env e,
adamc@282 737 string ";"])
adamc@282 738 ets,
adamc@282 739 newline,
adamc@282 740 newline,
adamc@282 741
adamc@282 742 string "const char *paramValues[] = { ",
adamc@282 743 p_list_sepi (box [string ",", space])
adamc@282 744 (fn i => fn (_, t) => p_ensql t (box [string "arg",
adamc@282 745 string (Int.toString (i + 1))]))
adamc@282 746 ets,
adamc@282 747 string " };",
adamc@282 748 newline,
adamc@282 749 newline]
adamc@282 750 end,
adamc@278 751 string "int n, i;",
adamc@278 752 newline,
adamc@278 753 p_typ env state,
adamc@278 754 space,
adamc@278 755 string "acc",
adamc@278 756 space,
adamc@278 757 string "=",
adamc@278 758 space,
adamc@278 759 p_exp env initial,
adamc@278 760 string ";",
adamc@278 761 newline,
adamc@282 762 string "PGresult *res = ",
adamc@282 763 case prepared of
adamc@295 764 NONE => string "PQexecParams(conn, query, 0, NULL, NULL, NULL, NULL, 0);"
adamc@311 765 | SOME n => box [string "PQexecPrepared(conn, \"uw",
adamc@282 766 string (Int.toString n),
adamc@282 767 string "\", ",
adamc@282 768 string (Int.toString (length (getPargs query))),
adamc@295 769 string ", paramValues, NULL, NULL, 0);"],
adamc@278 770 newline,
adamc@278 771 newline,
adamc@277 772
adamc@311 773 string "if (res == NULL) uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@278 774 newline,
adamc@278 775 newline,
adamc@277 776
adamc@278 777 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@278 778 newline,
adamc@278 779 box [string "PQclear(res);",
adamc@278 780 newline,
adamc@311 781 string "uw_error(ctx, FATAL, \"",
adamc@278 782 string (ErrorMsg.spanToString loc),
adamc@282 783 string ": Query failed:\\n%s\\n%s\", ",
adamc@282 784 case prepared of
adamc@282 785 NONE => string "query"
adamc@282 786 | SOME _ => p_exp env query,
adamc@282 787 string ", PQerrorMessage(conn));",
adamc@278 788 newline],
adamc@278 789 string "}",
adamc@278 790 newline,
adamc@278 791 newline,
adamc@277 792
adamc@278 793 string "n = PQntuples(res);",
adamc@278 794 newline,
adamc@278 795 string "for (i = 0; i < n; ++i) {",
adamc@278 796 newline,
adamc@278 797 box [string "struct",
adamc@278 798 space,
adamc@311 799 string "__uws_",
adamc@278 800 string (Int.toString rnum),
adamc@278 801 space,
adamc@311 802 string "__uwr_r_",
adamc@278 803 string (Int.toString (E.countERels env)),
adamc@278 804 string ";",
adamc@278 805 newline,
adamc@278 806 p_typ env state,
adamc@278 807 space,
adamc@311 808 string "__uwr_acc_",
adamc@278 809 string (Int.toString (E.countERels env + 1)),
adamc@278 810 space,
adamc@278 811 string "=",
adamc@278 812 space,
adamc@278 813 string "acc;",
adamc@278 814 newline,
adamc@278 815 newline,
adamc@278 816
adamc@278 817 p_list_sepi (box []) (fn i =>
adamc@278 818 fn (proj, t) =>
adamc@311 819 box [string "__uwr_r_",
adamc@278 820 string (Int.toString (E.countERels env)),
adamc@278 821 string ".",
adamc@278 822 string proj,
adamc@278 823 space,
adamc@278 824 string "=",
adamc@278 825 space,
adamc@278 826 p_unsql env t
adamc@278 827 (box [string "PQgetvalue(res, i, ",
adamc@278 828 string (Int.toString i),
adamc@278 829 string ")"]),
adamc@278 830 string ";",
adamc@278 831 newline]) outputs,
adamc@278 832
adamc@278 833 newline,
adamc@278 834 newline,
adamc@278 835
adamc@278 836 string "acc",
adamc@278 837 space,
adamc@278 838 string "=",
adamc@278 839 space,
adamc@278 840 p_exp (E.pushERel
adamc@278 841 (E.pushERel env "r" (TRecord rnum, loc))
adamc@278 842 "acc" state)
adamc@278 843 body,
adamc@278 844 string ";",
adamc@278 845 newline],
adamc@278 846 string "}",
adamc@278 847 newline,
adamc@278 848 newline,
adamc@278 849 string "PQclear(res);",
adamc@278 850 newline,
adamc@278 851 string "acc;",
adamc@278 852 newline,
adamc@278 853 string "})"]
adamc@278 854 end
adamc@106 855
adamc@307 856 | EDml {dml, prepared} =>
adamc@307 857 box [string "({",
adamc@307 858 newline,
adamc@311 859 string "PGconn *conn = uw_get_db(ctx);",
adamc@307 860 newline,
adamc@307 861 case prepared of
adamc@307 862 NONE => box [string "char *dml = ",
adamc@307 863 p_exp env dml,
adamc@307 864 string ";",
adamc@307 865 newline]
adamc@307 866 | SOME _ =>
adamc@307 867 let
adamc@307 868 val ets = getPargs dml
adamc@307 869 in
adamc@307 870 box [p_list_sepi newline
adamc@307 871 (fn i => fn (e, t) =>
adamc@307 872 box [p_sql_type t,
adamc@307 873 space,
adamc@307 874 string "arg",
adamc@307 875 string (Int.toString (i + 1)),
adamc@307 876 space,
adamc@307 877 string "=",
adamc@307 878 space,
adamc@307 879 p_exp env e,
adamc@307 880 string ";"])
adamc@307 881 ets,
adamc@307 882 newline,
adamc@307 883 newline,
adamc@307 884
adamc@307 885 string "const char *paramValues[] = { ",
adamc@307 886 p_list_sepi (box [string ",", space])
adamc@307 887 (fn i => fn (_, t) => p_ensql t (box [string "arg",
adamc@307 888 string (Int.toString (i + 1))]))
adamc@307 889 ets,
adamc@307 890 string " };",
adamc@307 891 newline,
adamc@307 892 newline]
adamc@307 893 end,
adamc@307 894 newline,
adamc@307 895 newline,
adamc@307 896 string "PGresult *res = ",
adamc@307 897 case prepared of
adamc@307 898 NONE => string "PQexecParams(conn, dml, 0, NULL, NULL, NULL, NULL, 0);"
adamc@311 899 | SOME n => box [string "PQexecPrepared(conn, \"uw",
adamc@307 900 string (Int.toString n),
adamc@307 901 string "\", ",
adamc@307 902 string (Int.toString (length (getPargs dml))),
adamc@307 903 string ", paramValues, NULL, NULL, 0);"],
adamc@307 904 newline,
adamc@307 905 newline,
adamc@307 906
adamc@311 907 string "if (res == NULL) uw_error(ctx, FATAL, \"Out of memory allocating DML result.\");",
adamc@307 908 newline,
adamc@307 909 newline,
adamc@307 910
adamc@307 911 string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@307 912 newline,
adamc@307 913 box [string "PQclear(res);",
adamc@307 914 newline,
adamc@311 915 string "uw_error(ctx, FATAL, \"",
adamc@307 916 string (ErrorMsg.spanToString loc),
adamc@307 917 string ": DML failed:\\n%s\\n%s\", ",
adamc@307 918 case prepared of
adamc@307 919 NONE => string "dml"
adamc@307 920 | SOME _ => p_exp env dml,
adamc@307 921 string ", PQerrorMessage(conn));",
adamc@307 922 newline],
adamc@307 923 string "}",
adamc@307 924 newline,
adamc@307 925 newline,
adamc@307 926
adamc@307 927 string "PQclear(res);",
adamc@307 928 newline,
adamc@311 929 string "uw_unit_v;",
adamc@307 930 newline,
adamc@307 931 string "})"]
adamc@307 932
adamc@29 933 and p_exp env = p_exp' false env
adamc@29 934
adamc@129 935 fun p_fun env (fx, n, args, ran, e) =
adamc@129 936 let
adamc@129 937 val nargs = length args
adamc@129 938 val env' = foldl (fn ((x, dom), env) => E.pushERel env x dom) env args
adamc@129 939 in
adamc@129 940 box [string "static",
adamc@129 941 space,
adamc@129 942 p_typ env ran,
adamc@129 943 space,
adamc@316 944 string ("__uwn_" ^ ident fx ^ "_" ^ Int.toString n),
adamc@129 945 string "(",
adamc@129 946 p_list_sep (box [string ",", space]) (fn x => x)
adamc@311 947 (string "uw_context ctx" :: ListUtil.mapi (fn (i, (_, dom)) =>
adamc@129 948 box [p_typ env dom,
adamc@129 949 space,
adamc@129 950 p_rel env' (nargs - i - 1)]) args),
adamc@129 951 string ")",
adamc@129 952 space,
adamc@129 953 string "{",
adamc@129 954 newline,
adamc@129 955 box[string "return(",
adamc@129 956 p_exp env' e,
adamc@129 957 string ");"],
adamc@129 958 newline,
adamc@129 959 string "}"]
adamc@129 960 end
adamc@129 961
adamc@129 962 fun p_decl env (dAll as (d, _) : decl) =
adamc@29 963 case d of
adamc@29 964 DStruct (n, xts) =>
adamc@196 965 let
adamc@196 966 val env = E.declBinds env dAll
adamc@196 967 in
adamc@196 968 box [string "struct",
adamc@196 969 space,
adamc@311 970 string ("__uws_" ^ Int.toString n),
adamc@196 971 space,
adamc@196 972 string "{",
adamc@196 973 newline,
adamc@196 974 p_list_sep (box []) (fn (x, t) => box [p_typ env t,
adamc@196 975 space,
adamc@311 976 string "__uwf_",
adamc@316 977 p_ident x,
adamc@196 978 string ";",
adamc@196 979 newline]) xts,
adamc@196 980 string "};"]
adamc@196 981 end
adamc@188 982 | DDatatype (Enum, x, n, xncs) =>
adamc@188 983 box [string "enum",
adamc@188 984 space,
adamc@316 985 string ("__uwe_" ^ ident x ^ "_" ^ Int.toString n),
adamc@188 986 space,
adamc@188 987 string "{",
adamc@188 988 space,
adamc@316 989 p_list_sep (box [string ",", space]) (fn (x, n, _) =>
adamc@316 990 string ("__uwc_" ^ ident x ^ "_" ^ Int.toString n)) xncs,
adamc@188 991 space,
adamc@188 992 string "};"]
adamc@198 993 | DDatatype (Option, _, _, _) => box []
adamc@188 994 | DDatatype (Default, x, n, xncs) =>
adamc@165 995 let
adamc@165 996 val xncsArgs = List.mapPartial (fn (x, n, NONE) => NONE
adamc@165 997 | (x, n, SOME t) => SOME (x, n, t)) xncs
adamc@165 998 in
adamc@165 999 box [string "enum",
adamc@165 1000 space,
adamc@316 1001 string ("__uwe_" ^ ident x ^ "_" ^ Int.toString n),
adamc@165 1002 space,
adamc@165 1003 string "{",
adamc@165 1004 space,
adamc@316 1005 p_list_sep (box [string ",", space]) (fn (x, n, _) =>
adamc@316 1006 string ("__uwc_" ^ ident x ^ "_" ^ Int.toString n)) xncs,
adamc@165 1007 space,
adamc@165 1008 string "};",
adamc@165 1009 newline,
adamc@165 1010 newline,
adamc@165 1011 string "struct",
adamc@165 1012 space,
adamc@316 1013 string ("__uwd_" ^ ident x ^ "_" ^ Int.toString n),
adamc@165 1014 space,
adamc@165 1015 string "{",
adamc@165 1016 newline,
adamc@165 1017 string "enum",
adamc@165 1018 space,
adamc@316 1019 string ("__uwe_" ^ ident x ^ "_" ^ Int.toString n),
adamc@165 1020 space,
adamc@165 1021 string "tag;",
adamc@165 1022 newline,
adamc@165 1023 box (case xncsArgs of
adamc@165 1024 [] => []
adamc@165 1025 | _ => [string "union",
adamc@165 1026 space,
adamc@165 1027 string "{",
adamc@165 1028 newline,
adamc@165 1029 p_list_sep newline (fn (x, n, t) => box [p_typ env t,
adamc@165 1030 space,
adamc@316 1031 string ("uw_" ^ ident x),
adamc@165 1032 string ";"]) xncsArgs,
adamc@165 1033 newline,
adamc@165 1034 string "}",
adamc@165 1035 space,
adamc@165 1036 string "data;",
adamc@165 1037 newline]),
adamc@165 1038 string "};"]
adamc@188 1039 end
adamc@29 1040
adamc@196 1041 | DDatatypeForward _ => box []
adamc@196 1042
adamc@29 1043 | DVal (x, n, t, e) =>
adamc@29 1044 box [p_typ env t,
adamc@29 1045 space,
adamc@316 1046 string ("__uwn_" ^ ident x ^ "_" ^ Int.toString n),
adamc@29 1047 space,
adamc@29 1048 string "=",
adamc@29 1049 space,
adamc@29 1050 p_exp env e,
adamc@29 1051 string ";"]
adamc@129 1052 | DFun vi => p_fun env vi
adamc@129 1053 | DFunRec vis =>
adamc@29 1054 let
adamc@129 1055 val env = E.declBinds env dAll
adamc@29 1056 in
adamc@129 1057 box [p_list_sep newline (fn (fx, n, args, ran, _) =>
adamc@129 1058 box [string "static",
adamc@129 1059 space,
adamc@129 1060 p_typ env ran,
adamc@129 1061 space,
adamc@316 1062 string ("__uwn_" ^ ident fx ^ "_" ^ Int.toString n),
adamc@311 1063 string "(uw_context,",
adamc@129 1064 space,
adamc@129 1065 p_list_sep (box [string ",", space])
adamc@129 1066 (fn (_, dom) => p_typ env dom) args,
adamc@129 1067 string ");"]) vis,
adamc@29 1068 newline,
adamc@129 1069 p_list_sep newline (p_fun env) vis,
adamc@129 1070 newline]
adamc@29 1071 end
adamc@273 1072 | DTable (x, _) => box [string "/* SQL table ",
adamc@273 1073 string x,
adamc@273 1074 string " */",
adamc@273 1075 newline]
adamc@311 1076 | DDatabase s => box [string "static void uw_db_validate(uw_context);",
adamc@272 1077 newline,
adamc@311 1078 string "static void uw_db_prepare(uw_context);",
adamc@282 1079 newline,
adamc@275 1080 newline,
adamc@311 1081 string "void uw_db_init(uw_context ctx) {",
adamc@273 1082 newline,
adamc@272 1083 string "PGconn *conn = PQconnectdb(\"",
adamc@272 1084 string (String.toString s),
adamc@272 1085 string "\");",
adamc@272 1086 newline,
adamc@311 1087 string "if (conn == NULL) uw_error(ctx, BOUNDED_RETRY, ",
adamc@272 1088 string "\"libpq can't allocate a connection.\");",
adamc@272 1089 newline,
adamc@272 1090 string "if (PQstatus(conn) != CONNECTION_OK) {",
adamc@272 1091 newline,
adamc@272 1092 box [string "char msg[1024];",
adamc@272 1093 newline,
adamc@272 1094 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@272 1095 newline,
adamc@272 1096 string "msg[1023] = 0;",
adamc@272 1097 newline,
adamc@272 1098 string "PQfinish(conn);",
adamc@272 1099 newline,
adamc@311 1100 string "uw_error(ctx, BOUNDED_RETRY, ",
adamc@272 1101 string "\"Connection to Postgres server failed: %s\", msg);"],
adamc@272 1102 newline,
adamc@272 1103 string "}",
adamc@272 1104 newline,
adamc@311 1105 string "uw_set_db(ctx, conn);",
adamc@272 1106 newline,
adamc@311 1107 string "uw_db_validate(ctx);",
adamc@275 1108 newline,
adamc@311 1109 string "uw_db_prepare(ctx);",
adamc@282 1110 newline,
adamc@272 1111 string "}",
adamc@272 1112 newline,
adamc@272 1113 newline,
adamc@311 1114 string "void uw_db_close(uw_context ctx) {",
adamc@272 1115 newline,
adamc@311 1116 string "PQfinish(uw_get_db(ctx));",
adamc@272 1117 newline,
adamc@272 1118 string "}",
adamc@272 1119 newline]
adamc@29 1120
adamc@282 1121 | DPreparedStatements ss =>
adamc@311 1122 box [string "static void uw_db_prepare(uw_context ctx) {",
adamc@282 1123 newline,
adamc@311 1124 string "PGconn *conn = uw_get_db(ctx);",
adamc@282 1125 newline,
adamc@282 1126 string "PGresult *res;",
adamc@282 1127 newline,
adamc@282 1128 newline,
adamc@282 1129
adamc@282 1130 p_list_sepi newline (fn i => fn (s, n) =>
adamc@311 1131 box [string "res = PQprepare(conn, \"uw",
adamc@282 1132 string (Int.toString i),
adamc@282 1133 string "\", \"",
adamc@282 1134 string (String.toString s),
adamc@282 1135 string "\", ",
adamc@282 1136 string (Int.toString n),
adamc@282 1137 string ", NULL);",
adamc@282 1138 newline,
adamc@282 1139 string "if (PQresultStatus(res) != PGRES_COMMAND_OK) {",
adamc@282 1140 newline,
adamc@282 1141 box [string "char msg[1024];",
adamc@282 1142 newline,
adamc@282 1143 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@282 1144 newline,
adamc@282 1145 string "msg[1023] = 0;",
adamc@282 1146 newline,
adamc@282 1147 string "PQclear(res);",
adamc@282 1148 newline,
adamc@282 1149 string "PQfinish(conn);",
adamc@282 1150 newline,
adamc@311 1151 string "uw_error(ctx, FATAL, \"Unable to create prepared statement:\\n",
adamc@282 1152 string (String.toString s),
adamc@282 1153 string "\\n%s\", msg);",
adamc@282 1154 newline],
adamc@282 1155 string "}",
adamc@282 1156 newline,
adamc@282 1157 string "PQclear(res);",
adamc@282 1158 newline])
adamc@282 1159 ss,
adamc@282 1160
adamc@282 1161 string "}"]
adamc@282 1162
adamc@144 1163 datatype 'a search =
adamc@144 1164 Found of 'a
adamc@144 1165 | NotFound
adamc@144 1166 | Error
adamc@120 1167
adamc@275 1168 fun p_sqltype' env (tAll as (t, loc)) =
adamc@275 1169 case t of
adamc@275 1170 TFfi ("Basis", "int") => "int8"
adamc@275 1171 | TFfi ("Basis", "float") => "float8"
adamc@275 1172 | TFfi ("Basis", "string") => "text"
adamc@275 1173 | TFfi ("Basis", "bool") => "bool"
adamc@275 1174 | _ => (ErrorMsg.errorAt loc "Don't know SQL equivalent of type";
adamc@275 1175 Print.eprefaces' [("Type", p_typ env tAll)];
adamc@275 1176 "ERROR")
adamc@275 1177
adamc@275 1178 fun p_sqltype env t = string (p_sqltype' env t)
adamc@101 1179
adamc@101 1180 fun p_file env (ds, ps) =
adamc@29 1181 let
adamc@101 1182 val (pds, env) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 1183 (p_decl env d,
adamc@31 1184 E.declBinds env d))
adamc@101 1185 env ds
adamc@144 1186
adamc@144 1187 val fields = foldl (fn ((ek, _, _, ts), fields) =>
adamc@144 1188 case ek of
adamc@144 1189 Core.Link => fields
adamc@144 1190 | Core.Action =>
adamc@280 1191 case List.nth (ts, length ts - 2) of
adamc@144 1192 (TRecord i, _) =>
adamc@144 1193 let
adamc@144 1194 val xts = E.lookupStruct env i
adamc@144 1195 val xtsSet = SS.addList (SS.empty, map #1 xts)
adamc@144 1196 in
adamc@144 1197 foldl (fn ((x, _), fields) =>
adamc@144 1198 let
adamc@144 1199 val xtsSet' = Option.getOpt (SM.find (fields, x), SS.empty)
adamc@144 1200 in
adamc@144 1201 SM.insert (fields, x, SS.union (SS.delete (xtsSet, x),
adamc@144 1202 xtsSet'))
adamc@144 1203 end) fields xts
adamc@144 1204 end
adamc@144 1205 | _ => raise Fail "CjrPrint: Last argument of action isn't record")
adamc@144 1206 SM.empty ps
adamc@144 1207
adamc@144 1208 val fnums = SM.foldli (fn (x, xs, fnums) =>
adamc@144 1209 let
adamc@144 1210 val unusable = SS.foldl (fn (x', unusable) =>
adamc@144 1211 case SM.find (fnums, x') of
adamc@144 1212 NONE => unusable
adamc@144 1213 | SOME n => IS.add (unusable, n))
adamc@144 1214 IS.empty xs
adamc@144 1215
adamc@144 1216 fun findAvailable n =
adamc@144 1217 if IS.member (unusable, n) then
adamc@144 1218 findAvailable (n + 1)
adamc@144 1219 else
adamc@144 1220 n
adamc@144 1221 in
adamc@144 1222 SM.insert (fnums, x, findAvailable 0)
adamc@144 1223 end)
adamc@144 1224 SM.empty fields
adamc@144 1225
adamc@144 1226 fun makeSwitch (fnums, i) =
adamc@144 1227 case SM.foldl (fn (n, NotFound) => Found n
adamc@144 1228 | (n, Error) => Error
adamc@144 1229 | (n, Found n') => if n = n' then
adamc@144 1230 Found n'
adamc@144 1231 else
adamc@144 1232 Error) NotFound fnums of
adamc@144 1233 NotFound => box [string "return",
adamc@144 1234 space,
adamc@144 1235 string "-1;"]
adamc@144 1236 | Found n => box [string "return",
adamc@144 1237 space,
adamc@144 1238 string (Int.toString n),
adamc@144 1239 string ";"]
adamc@144 1240 | Error =>
adamc@144 1241 let
adamc@144 1242 val cmap = SM.foldli (fn (x, n, cmap) =>
adamc@144 1243 let
adamc@144 1244 val ch = if i < size x then
adamc@144 1245 String.sub (x, i)
adamc@144 1246 else
adamc@144 1247 chr 0
adamc@144 1248
adamc@144 1249 val fnums = case CM.find (cmap, ch) of
adamc@144 1250 NONE => SM.empty
adamc@144 1251 | SOME fnums => fnums
adamc@144 1252 val fnums = SM.insert (fnums, x, n)
adamc@144 1253 in
adamc@144 1254 CM.insert (cmap, ch, fnums)
adamc@144 1255 end)
adamc@144 1256 CM.empty fnums
adamc@144 1257
adamc@144 1258 val cmap = CM.listItemsi cmap
adamc@144 1259 in
adamc@144 1260 case cmap of
adamc@144 1261 [(_, fnums)] =>
adamc@144 1262 box [string "if",
adamc@144 1263 space,
adamc@144 1264 string "(name[",
adamc@144 1265 string (Int.toString i),
adamc@144 1266 string "]",
adamc@144 1267 space,
adamc@144 1268 string "==",
adamc@144 1269 space,
adamc@144 1270 string "0)",
adamc@144 1271 space,
adamc@144 1272 string "return",
adamc@144 1273 space,
adamc@144 1274 string "-1;",
adamc@144 1275 newline,
adamc@144 1276 makeSwitch (fnums, i+1)]
adamc@144 1277 | _ =>
adamc@144 1278 box [string "switch",
adamc@144 1279 space,
adamc@144 1280 string "(name[",
adamc@144 1281 string (Int.toString i),
adamc@144 1282 string "])",
adamc@144 1283 space,
adamc@144 1284 string "{",
adamc@144 1285 newline,
adamc@144 1286 box (map (fn (ch, fnums) =>
adamc@144 1287 box [string "case",
adamc@144 1288 space,
adamc@144 1289 if ch = chr 0 then
adamc@144 1290 string "0:"
adamc@144 1291 else
adamc@144 1292 box [string "'",
adamc@144 1293 string (Char.toString ch),
adamc@144 1294 string "':"],
adamc@144 1295 newline,
adamc@144 1296 makeSwitch (fnums, i+1),
adamc@144 1297 newline]) cmap),
adamc@144 1298 string "default:",
adamc@144 1299 newline,
adamc@144 1300 string "return",
adamc@144 1301 space,
adamc@144 1302 string "-1;",
adamc@144 1303 newline,
adamc@144 1304 string "}"]
adamc@144 1305 end
adamc@144 1306
adamc@186 1307 fun capitalize s =
adamc@186 1308 if s = "" then
adamc@186 1309 ""
adamc@186 1310 else
adamc@186 1311 str (Char.toUpper (String.sub (s, 0))) ^ String.extract (s, 1, NONE)
adamc@186 1312
adamc@144 1313 fun unurlify (t, loc) =
adamc@144 1314 case t of
adamc@316 1315 TFfi (m, t) => string ("uw_" ^ ident m ^ "_unurlify" ^ capitalize t ^ "(ctx, &request)")
adamc@144 1316
adamc@311 1317 | TRecord 0 => string "uw_unit_v"
adamc@144 1318 | TRecord i =>
adamc@144 1319 let
adamc@144 1320 val xts = E.lookupStruct env i
adamc@144 1321 in
adamc@144 1322 box [string "({",
adamc@144 1323 newline,
adamc@144 1324 box (map (fn (x, t) =>
adamc@144 1325 box [p_typ env t,
adamc@144 1326 space,
adamc@144 1327 string x,
adamc@144 1328 space,
adamc@144 1329 string "=",
adamc@144 1330 space,
adamc@144 1331 unurlify t,
adamc@144 1332 string ";",
adamc@144 1333 newline]) xts),
adamc@144 1334 string "struct",
adamc@144 1335 space,
adamc@311 1336 string "__uws_",
adamc@144 1337 string (Int.toString i),
adamc@144 1338 space,
adamc@181 1339 string "tmp",
adamc@144 1340 space,
adamc@144 1341 string "=",
adamc@144 1342 space,
adamc@144 1343 string "{",
adamc@144 1344 space,
adamc@144 1345 p_list_sep (box [string ",", space]) (fn (x, _) => string x) xts,
adamc@144 1346 space,
adamc@144 1347 string "};",
adamc@144 1348 newline,
adamc@181 1349 string "tmp;",
adamc@144 1350 newline,
adamc@144 1351 string "})"]
adamc@144 1352 end
adamc@144 1353
adamc@188 1354 | TDatatype (Enum, i, _) =>
adamc@188 1355 let
adamc@188 1356 val (x, xncs) = E.lookupDatatype env i
adamc@188 1357
adamc@188 1358 fun doEm xncs =
adamc@188 1359 case xncs of
adamc@311 1360 [] => string ("(uw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), (enum __uwe_"
adamc@188 1361 ^ x ^ "_" ^ Int.toString i ^ ")0)")
adamc@188 1362 | (x', n, to) :: rest =>
adamc@188 1363 box [string "((!strncmp(request, \"",
adamc@188 1364 string x',
adamc@188 1365 string "\", ",
adamc@188 1366 string (Int.toString (size x')),
adamc@188 1367 string ") && (request[",
adamc@188 1368 string (Int.toString (size x')),
adamc@188 1369 string "] == 0 || request[",
adamc@188 1370 string (Int.toString (size x')),
adamc@316 1371 string ("] == '/')) ? __uwc_" ^ ident x' ^ "_" ^ Int.toString n),
adamc@188 1372 space,
adamc@188 1373 string ":",
adamc@188 1374 space,
adamc@188 1375 doEm rest,
adamc@188 1376 string ")"]
adamc@188 1377 in
adamc@188 1378 doEm xncs
adamc@188 1379 end
adamc@188 1380
adamc@198 1381 | TDatatype (Option, i, xncs) =>
adamc@198 1382 let
adamc@198 1383 val (x, _) = E.lookupDatatype env i
adamc@198 1384
adamc@198 1385 val (no_arg, has_arg, t) =
adamc@198 1386 case !xncs of
adamc@198 1387 [(no_arg, _, NONE), (has_arg, _, SOME t)] =>
adamc@198 1388 (no_arg, has_arg, t)
adamc@198 1389 | [(has_arg, _, SOME t), (no_arg, _, NONE)] =>
adamc@198 1390 (no_arg, has_arg, t)
adamc@198 1391 | _ => raise Fail "CjrPrint: unfooify misclassified Option datatype"
adamc@198 1392 in
adamc@198 1393 box [string "(request[0] == '/' ? ++request : request,",
adamc@198 1394 newline,
adamc@198 1395 string "((!strncmp(request, \"",
adamc@198 1396 string no_arg,
adamc@198 1397 string "\", ",
adamc@198 1398 string (Int.toString (size no_arg)),
adamc@198 1399 string ") && (request[",
adamc@198 1400 string (Int.toString (size no_arg)),
adamc@198 1401 string "] == 0 || request[",
adamc@198 1402 string (Int.toString (size no_arg)),
adamc@198 1403 string "] == '/')) ? (request",
adamc@198 1404 space,
adamc@198 1405 string "+=",
adamc@198 1406 space,
adamc@198 1407 string (Int.toString (size no_arg)),
adamc@198 1408 string ", NULL) : ((!strncmp(request, \"",
adamc@198 1409 string has_arg,
adamc@198 1410 string "\", ",
adamc@198 1411 string (Int.toString (size has_arg)),
adamc@198 1412 string ") && (request[",
adamc@198 1413 string (Int.toString (size has_arg)),
adamc@198 1414 string "] == 0 || request[",
adamc@198 1415 string (Int.toString (size has_arg)),
adamc@198 1416 string "] == '/')) ? (request",
adamc@198 1417 space,
adamc@198 1418 string "+=",
adamc@198 1419 space,
adamc@198 1420 string (Int.toString (size has_arg)),
adamc@200 1421 string ", (request[0] == '/' ? ++request : NULL), ",
adamc@200 1422 newline,
adamc@198 1423
adamc@198 1424 case #1 t of
adamc@198 1425 TDatatype _ => unurlify t
adamc@199 1426 | TFfi ("Basis", "string") => unurlify t
adamc@198 1427 | _ => box [string "({",
adamc@198 1428 newline,
adamc@198 1429 p_typ env t,
adamc@198 1430 space,
adamc@198 1431 string "*tmp",
adamc@198 1432 space,
adamc@198 1433 string "=",
adamc@198 1434 space,
adamc@311 1435 string "uw_malloc(ctx, sizeof(",
adamc@198 1436 p_typ env t,
adamc@198 1437 string "));",
adamc@198 1438 newline,
adamc@198 1439 string "*tmp",
adamc@198 1440 space,
adamc@198 1441 string "=",
adamc@198 1442 space,
adamc@198 1443 unurlify t,
adamc@198 1444 string ";",
adamc@198 1445 newline,
adamc@198 1446 string "tmp;",
adamc@198 1447 newline,
adamc@198 1448 string "})"],
adamc@198 1449 string ")",
adamc@198 1450 newline,
adamc@198 1451 string ":",
adamc@198 1452 space,
adamc@311 1453 string ("(uw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), NULL))))")]
adamc@198 1454 end
adamc@198 1455
adamc@188 1456 | TDatatype (Default, i, _) =>
adamc@166 1457 let
adamc@166 1458 val (x, xncs) = E.lookupDatatype env i
adamc@166 1459
adamc@166 1460 fun doEm xncs =
adamc@166 1461 case xncs of
adamc@311 1462 [] => string ("(uw_error(ctx, FATAL, \"Error unurlifying datatype " ^ x ^ "\"), NULL)")
adamc@167 1463 | (x', n, to) :: rest =>
adamc@167 1464 box [string "((!strncmp(request, \"",
adamc@167 1465 string x',
adamc@167 1466 string "\", ",
adamc@167 1467 string (Int.toString (size x')),
adamc@167 1468 string ") && (request[",
adamc@167 1469 string (Int.toString (size x')),
adamc@167 1470 string "] == 0 || request[",
adamc@167 1471 string (Int.toString (size x')),
adamc@167 1472 string "] == '/')) ? ({",
adamc@166 1473 newline,
adamc@167 1474 string "struct",
adamc@167 1475 space,
adamc@316 1476 string ("__uwd_" ^ ident x ^ "_" ^ Int.toString i),
adamc@166 1477 space,
adamc@311 1478 string "*tmp = uw_malloc(ctx, sizeof(struct __uwd_",
adamc@167 1479 string x,
adamc@167 1480 string "_",
adamc@167 1481 string (Int.toString i),
adamc@167 1482 string "));",
adamc@166 1483 newline,
adamc@181 1484 string "tmp->tag",
adamc@166 1485 space,
adamc@166 1486 string "=",
adamc@166 1487 space,
adamc@316 1488 string ("__uwc_" ^ ident x' ^ "_" ^ Int.toString n),
adamc@166 1489 string ";",
adamc@166 1490 newline,
adamc@166 1491 string "request",
adamc@166 1492 space,
adamc@166 1493 string "+=",
adamc@166 1494 space,
adamc@167 1495 string (Int.toString (size x')),
adamc@166 1496 string ";",
adamc@166 1497 newline,
adamc@200 1498 string "if (request[0] == '/') ++request;",
adamc@200 1499 newline,
adamc@166 1500 case to of
adamc@166 1501 NONE => box []
adamc@311 1502 | SOME t => box [string "tmp->data.uw_",
adamc@316 1503 p_ident x',
adamc@166 1504 space,
adamc@166 1505 string "=",
adamc@166 1506 space,
adamc@166 1507 unurlify t,
adamc@166 1508 string ";",
adamc@166 1509 newline],
adamc@181 1510 string "tmp;",
adamc@166 1511 newline,
adamc@166 1512 string "})",
adamc@166 1513 space,
adamc@166 1514 string ":",
adamc@166 1515 space,
adamc@166 1516 doEm rest,
adamc@166 1517 string ")"]
adamc@166 1518 in
adamc@166 1519 doEm xncs
adamc@166 1520 end
adamc@166 1521
adamc@144 1522 | _ => (ErrorMsg.errorAt loc "Unable to choose a URL decoding function";
adamc@144 1523 space)
adamc@144 1524
adamc@144 1525
adamc@144 1526 fun p_page (ek, s, n, ts) =
adamc@144 1527 let
adamc@144 1528 val (ts, defInputs, inputsVar) =
adamc@144 1529 case ek of
adamc@314 1530 Core.Link => (List.take (ts, length ts - 1), string "", string "")
adamc@144 1531 | Core.Action =>
adamc@280 1532 case List.nth (ts, length ts - 2) of
adamc@144 1533 (TRecord i, _) =>
adamc@144 1534 let
adamc@144 1535 val xts = E.lookupStruct env i
adamc@144 1536 in
adamc@280 1537 (List.take (ts, length ts - 2),
adamc@144 1538 box [box (map (fn (x, t) => box [p_typ env t,
adamc@144 1539 space,
adamc@311 1540 string "uw_input_",
adamc@316 1541 p_ident x,
adamc@144 1542 string ";",
adamc@144 1543 newline]) xts),
adamc@144 1544 newline,
adamc@144 1545 box (map (fn (x, t) =>
adamc@144 1546 let
adamc@144 1547 val n = case SM.find (fnums, x) of
adamc@144 1548 NONE => raise Fail "CjrPrint: Can't find in fnums"
adamc@144 1549 | SOME n => n
adamc@190 1550
adamc@190 1551 val f = case t of
adamc@190 1552 (TFfi ("Basis", "bool"), _) => "optional_"
adamc@190 1553 | _ => ""
adamc@144 1554 in
adamc@311 1555 box [string "request = uw_get_",
adamc@190 1556 string f,
adamc@190 1557 string "input(ctx, ",
adamc@144 1558 string (Int.toString n),
adamc@144 1559 string ");",
adamc@144 1560 newline,
adamc@144 1561 string "if (request == NULL) {",
adamc@144 1562 newline,
adamc@144 1563 box [string "printf(\"Missing input ",
adamc@144 1564 string x,
adamc@144 1565 string "\\n\");",
adamc@144 1566 newline,
adamc@144 1567 string "exit(1);"],
adamc@144 1568 newline,
adamc@144 1569 string "}",
adamc@144 1570 newline,
adamc@311 1571 string "uw_input_",
adamc@316 1572 p_ident x,
adamc@144 1573 space,
adamc@144 1574 string "=",
adamc@144 1575 space,
adamc@144 1576 unurlify t,
adamc@144 1577 string ";",
adamc@144 1578 newline]
adamc@144 1579 end) xts),
adamc@311 1580 string "struct __uws_",
adamc@144 1581 string (Int.toString i),
adamc@144 1582 space,
adamc@311 1583 string "uw_inputs",
adamc@144 1584 space,
adamc@144 1585 string "= {",
adamc@144 1586 newline,
adamc@311 1587 box (map (fn (x, _) => box [string "uw_input_",
adamc@316 1588 p_ident x,
adamc@144 1589 string ",",
adamc@144 1590 newline]) xts),
adamc@144 1591 string "};",
adamc@144 1592 newline],
adamc@144 1593 box [string ",",
adamc@144 1594 space,
adamc@311 1595 string "uw_inputs"])
adamc@144 1596 end
adamc@144 1597
adamc@144 1598 | _ => raise Fail "CjrPrint: Last argument to an action isn't a record"
adamc@144 1599 in
adamc@144 1600 box [string "if (!strncmp(request, \"",
adamc@144 1601 string (String.toString s),
adamc@144 1602 string "\", ",
adamc@144 1603 string (Int.toString (size s)),
adamc@198 1604 string ") && (request[",
adamc@198 1605 string (Int.toString (size s)),
adamc@198 1606 string "] == 0 || request[",
adamc@198 1607 string (Int.toString (size s)),
adamc@198 1608 string "] == '/')) {",
adamc@144 1609 newline,
adamc@144 1610 string "request += ",
adamc@144 1611 string (Int.toString (size s)),
adamc@144 1612 string ";",
adamc@144 1613 newline,
adamc@144 1614 string "if (*request == '/') ++request;",
adamc@144 1615 newline,
adamc@144 1616 box [string "{",
adamc@144 1617 newline,
adamc@144 1618 box (ListUtil.mapi (fn (i, t) => box [p_typ env t,
adamc@144 1619 space,
adamc@144 1620 string "arg",
adamc@144 1621 string (Int.toString i),
adamc@144 1622 space,
adamc@144 1623 string "=",
adamc@144 1624 space,
adamc@144 1625 unurlify t,
adamc@144 1626 string ";",
adamc@144 1627 newline]) ts),
adamc@144 1628 defInputs,
adamc@144 1629 p_enamed env n,
adamc@144 1630 string "(",
adamc@144 1631 p_list_sep (box [string ",", space])
adamc@144 1632 (fn x => x)
adamc@272 1633 (string "ctx"
adamc@280 1634 :: ListUtil.mapi (fn (i, _) => string ("arg" ^ Int.toString i)) ts),
adamc@144 1635 inputsVar,
adamc@311 1636 string ", uw_unit_v);",
adamc@144 1637 newline,
adamc@144 1638 string "return;",
adamc@144 1639 newline,
adamc@144 1640 string "}",
adamc@144 1641 newline,
adamc@144 1642 string "}"]
adamc@144 1643 ]
adamc@144 1644 end
adamc@144 1645
adamc@144 1646 val pds' = map p_page ps
adamc@275 1647
adamc@275 1648 val tables = List.mapPartial (fn (DTable (s, xts), _) => SOME (s, xts)
adamc@275 1649 | _ => NONE) ds
adamc@275 1650
adamc@275 1651 val validate =
adamc@311 1652 box [string "static void uw_db_validate(uw_context ctx) {",
adamc@275 1653 newline,
adamc@311 1654 string "PGconn *conn = uw_get_db(ctx);",
adamc@275 1655 newline,
adamc@275 1656 string "PGresult *res;",
adamc@275 1657 newline,
adamc@275 1658 newline,
adamc@275 1659 p_list_sep newline
adamc@275 1660 (fn (s, xts) =>
adamc@275 1661 let
adamc@275 1662 val q = "SELECT COUNT(*) FROM pg_class WHERE relname = '"
adamc@275 1663 ^ s ^ "'"
adamc@275 1664
adamc@275 1665 val q' = String.concat ["SELECT COUNT(*) FROM pg_attribute WHERE attrelid = (SELECT oid FROM pg_class WHERE relname = '",
adamc@275 1666 s,
adamc@275 1667 "') AND (",
adamc@275 1668 String.concatWith " OR "
adamc@275 1669 (map (fn (x, t) =>
adamc@311 1670 String.concat ["(attname = 'uw_",
adamc@275 1671 CharVector.map
adamc@316 1672 Char.toLower (ident x),
adamc@275 1673 "' AND atttypid = (SELECT oid FROM pg_type",
adamc@275 1674 " WHERE typname = '",
adamc@275 1675 p_sqltype' env t,
adamc@275 1676 "'))"]) xts),
adamc@275 1677 ")"]
adamc@275 1678
adamc@275 1679 val q'' = String.concat ["SELECT COUNT(*) FROM pg_attribute WHERE attrelid = (SELECT oid FROM pg_class WHERE relname = '",
adamc@275 1680 s,
adamc@275 1681 "') AND attnum >= 0"]
adamc@275 1682 in
adamc@275 1683 box [string "res = PQexec(conn, \"",
adamc@275 1684 string q,
adamc@275 1685 string "\");",
adamc@275 1686 newline,
adamc@275 1687 newline,
adamc@275 1688 string "if (res == NULL) {",
adamc@275 1689 newline,
adamc@275 1690 box [string "PQfinish(conn);",
adamc@275 1691 newline,
adamc@311 1692 string "uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1693 newline],
adamc@275 1694 string "}",
adamc@275 1695 newline,
adamc@275 1696 newline,
adamc@275 1697 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1698 newline,
adamc@275 1699 box [string "char msg[1024];",
adamc@275 1700 newline,
adamc@275 1701 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1702 newline,
adamc@275 1703 string "msg[1023] = 0;",
adamc@275 1704 newline,
adamc@275 1705 string "PQclear(res);",
adamc@275 1706 newline,
adamc@275 1707 string "PQfinish(conn);",
adamc@275 1708 newline,
adamc@311 1709 string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1710 string q,
adamc@275 1711 string "\\n%s\", msg);",
adamc@275 1712 newline],
adamc@275 1713 string "}",
adamc@275 1714 newline,
adamc@275 1715 newline,
adamc@275 1716 string "if (strcmp(PQgetvalue(res, 0, 0), \"1\")) {",
adamc@275 1717 newline,
adamc@275 1718 box [string "PQclear(res);",
adamc@275 1719 newline,
adamc@275 1720 string "PQfinish(conn);",
adamc@275 1721 newline,
adamc@311 1722 string "uw_error(ctx, FATAL, \"Table '",
adamc@275 1723 string s,
adamc@275 1724 string "' does not exist.\");",
adamc@275 1725 newline],
adamc@275 1726 string "}",
adamc@275 1727 newline,
adamc@275 1728 newline,
adamc@275 1729 string "PQclear(res);",
adamc@275 1730 newline,
adamc@275 1731
adamc@275 1732 string "res = PQexec(conn, \"",
adamc@275 1733 string q',
adamc@275 1734 string "\");",
adamc@275 1735 newline,
adamc@275 1736 newline,
adamc@275 1737 string "if (res == NULL) {",
adamc@275 1738 newline,
adamc@275 1739 box [string "PQfinish(conn);",
adamc@275 1740 newline,
adamc@311 1741 string "uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1742 newline],
adamc@275 1743 string "}",
adamc@275 1744 newline,
adamc@275 1745 newline,
adamc@275 1746 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1747 newline,
adamc@275 1748 box [string "char msg[1024];",
adamc@275 1749 newline,
adamc@275 1750 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1751 newline,
adamc@275 1752 string "msg[1023] = 0;",
adamc@275 1753 newline,
adamc@275 1754 string "PQclear(res);",
adamc@275 1755 newline,
adamc@275 1756 string "PQfinish(conn);",
adamc@275 1757 newline,
adamc@311 1758 string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1759 string q',
adamc@275 1760 string "\\n%s\", msg);",
adamc@275 1761 newline],
adamc@275 1762 string "}",
adamc@275 1763 newline,
adamc@275 1764 newline,
adamc@275 1765 string "if (strcmp(PQgetvalue(res, 0, 0), \"",
adamc@275 1766 string (Int.toString (length xts)),
adamc@275 1767 string "\")) {",
adamc@275 1768 newline,
adamc@275 1769 box [string "PQclear(res);",
adamc@275 1770 newline,
adamc@275 1771 string "PQfinish(conn);",
adamc@275 1772 newline,
adamc@311 1773 string "uw_error(ctx, FATAL, \"Table '",
adamc@275 1774 string s,
adamc@275 1775 string "' has the wrong column types.\");",
adamc@275 1776 newline],
adamc@275 1777 string "}",
adamc@275 1778 newline,
adamc@275 1779 newline,
adamc@275 1780 string "PQclear(res);",
adamc@275 1781 newline,
adamc@275 1782 newline,
adamc@275 1783
adamc@275 1784 string "res = PQexec(conn, \"",
adamc@275 1785 string q'',
adamc@275 1786 string "\");",
adamc@275 1787 newline,
adamc@275 1788 newline,
adamc@275 1789 string "if (res == NULL) {",
adamc@275 1790 newline,
adamc@275 1791 box [string "PQfinish(conn);",
adamc@275 1792 newline,
adamc@311 1793 string "uw_error(ctx, FATAL, \"Out of memory allocating query result.\");",
adamc@275 1794 newline],
adamc@275 1795 string "}",
adamc@275 1796 newline,
adamc@275 1797 newline,
adamc@275 1798 string "if (PQresultStatus(res) != PGRES_TUPLES_OK) {",
adamc@275 1799 newline,
adamc@275 1800 box [string "char msg[1024];",
adamc@275 1801 newline,
adamc@275 1802 string "strncpy(msg, PQerrorMessage(conn), 1024);",
adamc@275 1803 newline,
adamc@275 1804 string "msg[1023] = 0;",
adamc@275 1805 newline,
adamc@275 1806 string "PQclear(res);",
adamc@275 1807 newline,
adamc@275 1808 string "PQfinish(conn);",
adamc@275 1809 newline,
adamc@311 1810 string "uw_error(ctx, FATAL, \"Query failed:\\n",
adamc@275 1811 string q'',
adamc@275 1812 string "\\n%s\", msg);",
adamc@275 1813 newline],
adamc@275 1814 string "}",
adamc@275 1815 newline,
adamc@275 1816 newline,
adamc@275 1817 string "if (strcmp(PQgetvalue(res, 0, 0), \"",
adamc@275 1818 string (Int.toString (length xts)),
adamc@275 1819 string "\")) {",
adamc@275 1820 newline,
adamc@275 1821 box [string "PQclear(res);",
adamc@275 1822 newline,
adamc@275 1823 string "PQfinish(conn);",
adamc@275 1824 newline,
adamc@311 1825 string "uw_error(ctx, FATAL, \"Table '",
adamc@275 1826 string s,
adamc@275 1827 string "' has extra columns.\");",
adamc@275 1828 newline],
adamc@275 1829 string "}",
adamc@275 1830 newline,
adamc@275 1831 newline,
adamc@275 1832 string "PQclear(res);",
adamc@275 1833 newline]
adamc@275 1834 end) tables,
adamc@275 1835 string "}"]
adamc@29 1836 in
adamc@144 1837 box [string "#include <stdio.h>",
adamc@144 1838 newline,
adamc@144 1839 string "#include <stdlib.h>",
adamc@144 1840 newline,
adamc@272 1841 string "#include <string.h>",
adamc@272 1842 newline,
adamc@272 1843 string "#include <postgresql/libpq-fe.h>",
adamc@272 1844 newline,
adamc@144 1845 newline,
adamc@244 1846 string "#include \"urweb.h\"",
adamc@101 1847 newline,
adamc@101 1848 newline,
adamc@101 1849 p_list_sep newline (fn x => x) pds,
adamc@101 1850 newline,
adamc@311 1851 string "int uw_inputs_len = ",
adamc@144 1852 string (Int.toString (SM.foldl Int.max 0 fnums + 1)),
adamc@144 1853 string ";",
adamc@144 1854 newline,
adamc@144 1855 newline,
adamc@311 1856 string "int uw_input_num(char *name) {",
adamc@144 1857 newline,
adamc@144 1858 makeSwitch (fnums, 0),
adamc@144 1859 string "}",
adamc@144 1860 newline,
adamc@144 1861 newline,
adamc@311 1862 string "void uw_handle(uw_context ctx, char *request) {",
adamc@101 1863 newline,
adamc@101 1864 p_list_sep newline (fn x => x) pds',
adamc@101 1865 newline,
adamc@101 1866 string "}",
adamc@275 1867 newline,
adamc@275 1868 newline,
adamc@275 1869 validate,
adamc@101 1870 newline]
adamc@29 1871 end
adamc@29 1872
adamc@274 1873 fun p_sql env (ds, _) =
adamc@274 1874 let
adamc@274 1875 val (pps, _) = ListUtil.foldlMap
adamc@274 1876 (fn (dAll as (d, _), env) =>
adamc@274 1877 let
adamc@274 1878 val pp = case d of
adamc@274 1879 DTable (s, xts) =>
adamc@274 1880 box [string "CREATE TABLE ",
adamc@274 1881 string s,
adamc@274 1882 string "(",
adamc@274 1883 p_list (fn (x, t) =>
adamc@311 1884 box [string "uw_",
adamc@275 1885 string (CharVector.map Char.toLower x),
adamc@274 1886 space,
adamc@274 1887 p_sqltype env t,
adamc@274 1888 space,
adamc@274 1889 string "NOT",
adamc@274 1890 space,
adamc@274 1891 string "NULL"]) xts,
adamc@274 1892 string ");",
adamc@274 1893 newline,
adamc@274 1894 newline]
adamc@274 1895 | _ => box []
adamc@274 1896 in
adamc@274 1897 (pp, E.declBinds env dAll)
adamc@274 1898 end)
adamc@274 1899 env ds
adamc@274 1900 in
adamc@274 1901 box pps
adamc@274 1902 end
adamc@274 1903
adamc@29 1904 end