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Tutorial: up to First-Class Polymorphism
author Adam Chlipala <adam@chlipala.net>
date Sun, 17 Jul 2011 11:00:04 -0400
parents 290de2dcecf6
children 3c0803c1acd7
rev   line source
adam@1478 1 (* Copyright (c) 2008-2011, Adam Chlipala
adamc@764 2 * All rights reserved.
adamc@764 3 *
adamc@764 4 * Redistribution and use in source and binary forms, with or without
adamc@764 5 * modification, are permitted provided that the following conditions are met:
adamc@764 6 *
adamc@764 7 * - Redistributions of source code must retain the above copyright notice,
adamc@764 8 * this list of conditions and the following disclaimer.
adamc@764 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@764 10 * this list of conditions and the following disclaimer in the documentation
adamc@764 11 * and/or other materials provided with the distribution.
adamc@764 12 * - The names of contributors may not be used to endorse or promote products
adamc@764 13 * derived from this software without specific prior written permission.
adamc@764 14 *
adamc@764 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@764 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@764 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@764 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@764 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@764 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@764 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@764 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@764 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@764 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@764 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@764 26 *)
adamc@764 27
adamc@764 28 structure Settings :> SETTINGS = struct
adamc@764 29
adamc@764 30 val urlPrefix = ref "/"
adam@1370 31 val urlPrePrefix = ref ""
adamc@764 32 val timeout = ref 0
adamc@764 33 val headers = ref ([] : string list)
adamc@766 34 val scripts = ref ([] : string list)
adamc@764 35
adamc@764 36 fun getUrlPrefix () = !urlPrefix
adam@1370 37 fun getUrlPrePrefix () = !urlPrePrefix
adamc@764 38 fun setUrlPrefix p =
adam@1370 39 let
adam@1370 40 val prefix = if p = "" then
adam@1370 41 "/"
adam@1370 42 else if String.sub (p, size p - 1) <> #"/" then
adam@1370 43 p ^ "/"
adam@1370 44 else
adam@1370 45 p
adam@1370 46
adam@1470 47 fun findPrefix n =
adam@1470 48 let
adam@1470 49 val (befor, after) = Substring.splitl (fn ch => ch <> #"/") (Substring.extract (prefix, n, NONE))
adam@1470 50 in
adam@1470 51 if Substring.isEmpty after then
adam@1470 52 ("", prefix)
adam@1470 53 else
adam@1470 54 (String.substring (prefix, 0, n) ^ Substring.string befor, Substring.string after)
adam@1470 55 end
adam@1470 56
adam@1370 57 val (prepre, prefix) =
adam@1370 58 if String.isPrefix "http://" prefix then
adam@1470 59 findPrefix 7
adam@1470 60 else if String.isPrefix "https://" prefix then
adam@1470 61 findPrefix 8
adam@1370 62 else
adam@1370 63 ("", prefix)
adam@1370 64 in
adam@1370 65 urlPrePrefix := prepre;
adam@1370 66 urlPrefix := prefix
adam@1370 67 end
adamc@764 68
adamc@764 69 fun getTimeout () = !timeout
adamc@764 70 fun setTimeout n = timeout := n
adamc@764 71
adamc@764 72 fun getHeaders () = !headers
adamc@764 73 fun setHeaders ls = headers := ls
adamc@764 74
adamc@766 75 fun getScripts () = !scripts
adamc@766 76 fun setScripts ls = scripts := ls
adamc@766 77
adamc@765 78 type ffi = string * string
adamc@765 79
adamc@765 80 structure K = struct
adamc@765 81 type ord_key = ffi
adamc@765 82 fun compare ((m1, x1), (m2, x2)) =
adamc@765 83 Order.join (String.compare (m1, m2),
adamc@765 84 fn () => String.compare (x1, x2))
adamc@764 85 end
adamc@765 86
adamc@765 87 structure S = BinarySetFn(K)
adamc@765 88 structure M = BinaryMapFn(K)
adamc@765 89
adamc@765 90 fun basis x = S.addList (S.empty, map (fn x : string => ("Basis", x)) x)
adamc@765 91
adamc@765 92 val clientToServerBase = basis ["int",
adamc@765 93 "float",
adamc@765 94 "string",
adamc@765 95 "time",
adamc@765 96 "file",
adamc@765 97 "unit",
adamc@765 98 "option",
adamc@765 99 "list",
adam@1288 100 "bool",
adam@1288 101 "variant"]
adamc@765 102 val clientToServer = ref clientToServerBase
adamc@765 103 fun setClientToServer ls = clientToServer := S.addList (clientToServerBase, ls)
adamc@765 104 fun mayClientToServer x = S.member (!clientToServer, x)
adamc@765 105
adamc@779 106 val effectfulBase = basis ["dml",
adamc@779 107 "nextval",
adamc@1073 108 "setval",
adamc@779 109 "set_cookie",
adamc@1050 110 "clear_cookie",
adamc@765 111 "new_channel",
adamc@1200 112 "send",
adamc@1200 113 "htmlifyInt_w",
adamc@1200 114 "htmlifyFloat_w",
adamc@1200 115 "htmlifyString_w",
adamc@1200 116 "htmlifyBool_w",
adamc@1200 117 "htmlifyTime_w",
adamc@1200 118 "attrifyInt_w",
adamc@1200 119 "attrifyFloat_w",
adamc@1200 120 "attrifyString_w",
adamc@1200 121 "attrifyChar_w",
adamc@1200 122 "urlifyInt_w",
adamc@1200 123 "urlifyFloat_w",
adamc@1200 124 "urlifyString_w",
adamc@1200 125 "urlifyBool_w",
adamc@1200 126 "urlifyChannel_w"]
adamc@765 127
adamc@765 128 val effectful = ref effectfulBase
adamc@765 129 fun setEffectful ls = effectful := S.addList (effectfulBase, ls)
adamc@765 130 fun isEffectful x = S.member (!effectful, x)
adamc@765 131
adamc@1171 132 val benignBase = basis ["get_cookie",
adamc@1171 133 "new_client_source",
adamc@1171 134 "get_client_source",
adamc@1171 135 "set_client_source",
adamc@1171 136 "current",
adamc@1171 137 "alert",
adam@1290 138 "confirm",
adamc@1171 139 "onError",
adamc@1171 140 "onFail",
adamc@1171 141 "onConnectFail",
adamc@1171 142 "onDisconnect",
adamc@1171 143 "onServerError",
adamc@1171 144 "kc",
adamc@1250 145 "debug",
adam@1389 146 "naughtyDebug",
adam@1422 147 "rand",
adam@1465 148 "now",
adam@1465 149 "getHeader",
adam@1465 150 "setHeader"]
adamc@1171 151
adamc@1171 152 val benign = ref benignBase
adamc@1171 153 fun setBenignEffectful ls = benign := S.addList (benignBase, ls)
adamc@1171 154 fun isBenignEffectful x = S.member (!benign, x)
adamc@1171 155
adamc@765 156 val clientBase = basis ["get",
adamc@765 157 "set",
adamc@841 158 "current",
adamc@765 159 "alert",
adam@1290 160 "confirm",
adamc@765 161 "recv",
adamc@765 162 "sleep",
adamc@765 163 "spawn",
adamc@765 164 "onError",
adamc@765 165 "onFail",
adamc@765 166 "onConnectFail",
adamc@765 167 "onDisconnect",
adamc@895 168 "onServerError",
adamc@895 169 "kc"]
adamc@765 170 val client = ref clientBase
adamc@765 171 fun setClientOnly ls = client := S.addList (clientBase, ls)
adamc@765 172 fun isClientOnly x = S.member (!client, x)
adamc@765 173
adamc@765 174 val serverBase = basis ["requestHeader",
adamc@765 175 "query",
adamc@765 176 "dml",
adamc@765 177 "nextval",
adamc@1073 178 "setval",
adamc@765 179 "channel",
adamc@765 180 "send"]
adamc@765 181 val server = ref serverBase
adamc@765 182 fun setServerOnly ls = server := S.addList (serverBase, ls)
adamc@765 183 fun isServerOnly x = S.member (!server, x)
adamc@765 184
adamc@765 185 val basisM = foldl (fn ((k, v : string), m) => M.insert (m, ("Basis", k), v)) M.empty
adamc@765 186
adamc@765 187 val jsFuncsBase = basisM [("alert", "alert"),
adam@1290 188 ("confirm", "confrm"),
adamc@765 189 ("get_client_source", "sg"),
adamc@841 190 ("current", "scur"),
adamc@765 191 ("htmlifyBool", "bs"),
adamc@765 192 ("htmlifyFloat", "ts"),
adamc@765 193 ("htmlifyInt", "ts"),
adamc@765 194 ("htmlifyString", "eh"),
adamc@765 195 ("new_client_source", "sc"),
adamc@765 196 ("set_client_source", "sv"),
adamc@838 197 ("stringToFloat", "pflo"),
adamc@838 198 ("stringToInt", "pio"),
adamc@765 199 ("stringToFloat_error", "pfl"),
adamc@765 200 ("stringToInt_error", "pi"),
adamc@765 201 ("urlifyInt", "ts"),
adamc@765 202 ("urlifyFloat", "ts"),
adam@1360 203 ("urlifyTime", "ts"),
adamc@765 204 ("urlifyString", "uf"),
adamc@912 205 ("urlifyBool", "ub"),
adamc@765 206 ("recv", "rv"),
adamc@765 207 ("strcat", "cat"),
adamc@765 208 ("intToString", "ts"),
adamc@765 209 ("floatToString", "ts"),
adamc@821 210 ("charToString", "ts"),
adamc@765 211 ("onError", "onError"),
adamc@765 212 ("onFail", "onFail"),
adamc@765 213 ("onConnectFail", "onConnectFail"),
adamc@765 214 ("onDisconnect", "onDisconnect"),
adamc@798 215 ("onServerError", "onServerError"),
adamc@1108 216 ("attrifyString", "atr"),
adamc@798 217 ("attrifyInt", "ts"),
adamc@798 218 ("attrifyFloat", "ts"),
adamc@820 219 ("attrifyBool", "bs"),
adamc@821 220 ("boolToString", "ts"),
adamc@1057 221 ("str1", "id"),
adamc@821 222 ("strsub", "sub"),
adamc@828 223 ("strsuffix", "suf"),
adamc@829 224 ("strlen", "slen"),
adamc@829 225 ("strindex", "sidx"),
adamc@829 226 ("strchr", "schr"),
adamc@831 227 ("substring", "ssub"),
adamc@895 228 ("strcspn", "sspn"),
adamc@1061 229 ("kc", "kc"),
adam@1404 230 ("minTime", "0"),
adamc@1061 231
adamc@1061 232 ("islower", "isLower"),
adamc@1061 233 ("isupper", "isUpper"),
adamc@1061 234 ("isalpha", "isAlpha"),
adamc@1061 235 ("isdigit", "isDigit"),
adamc@1061 236 ("isalnum", "isAlnum"),
adamc@1061 237 ("isblank", "isBlank"),
adamc@1061 238 ("isspace", "isSpace"),
adamc@1061 239 ("isxdigit", "isXdigit"),
adamc@1061 240 ("tolower", "toLower"),
adamc@1323 241 ("toupper", "toUpper"),
adamc@1323 242
adamc@1323 243 ("checkUrl", "checkUrl"),
adam@1366 244 ("bless", "bless"),
adam@1366 245
adam@1366 246 ("eq_time", "eq"),
adam@1366 247 ("lt_time", "lt"),
adam@1430 248 ("le_time", "le"),
adam@1430 249
adam@1430 250 ("debug", "alert"),
adam@1487 251 ("naughtyDebug", "alert"),
adam@1487 252
adam@1487 253 ("now", "now"),
adam@1487 254 ("timeToString", "showTime"),
adam@1487 255 ("htmlifyTime", "showTime")]
adamc@765 256 val jsFuncs = ref jsFuncsBase
adamc@765 257 fun setJsFuncs ls = jsFuncs := foldl (fn ((k, v), m) => M.insert (m, k, v)) jsFuncsBase ls
adamc@765 258 fun jsFunc x = M.find (!jsFuncs, x)
adam@1433 259 fun allJsFuncs () = M.listItemsi (!jsFuncs)
adamc@765 260
adamc@768 261 datatype pattern_kind = Exact | Prefix
adamc@768 262 datatype action = Allow | Deny
adamc@768 263 type rule = { action : action, kind : pattern_kind, pattern : string }
adamc@768 264
adamc@768 265 datatype path_kind = Any | Url | Table | Sequence | View | Relation | Cookie | Style
adamc@768 266 type rewrite = { pkind : path_kind, kind : pattern_kind, from : string, to : string }
adamc@768 267
adamc@768 268 val rewrites = ref ([] : rewrite list)
adamc@768 269
adamc@768 270 fun subsume (pk1, pk2) =
adamc@768 271 pk1 = pk2
adamc@768 272 orelse pk2 = Any
adamc@768 273 orelse pk2 = Relation andalso (pk1 = Table orelse pk1 = Sequence orelse pk1 = View)
adamc@768 274
adamc@768 275 fun setRewriteRules ls = rewrites := ls
adamc@768 276 fun rewrite pk s =
adamc@768 277 let
adamc@768 278 fun rew (ls : rewrite list) =
adamc@768 279 case ls of
adamc@768 280 [] => s
adamc@768 281 | rewr :: ls =>
adamc@768 282 let
adamc@768 283 fun match () =
adamc@768 284 case #kind rewr of
adamc@768 285 Exact => if #from rewr = s then
adamc@768 286 SOME (size s)
adamc@768 287 else
adamc@768 288 NONE
adamc@768 289 | Prefix => if String.isPrefix (#from rewr) s then
adamc@768 290 SOME (size (#from rewr))
adamc@768 291 else
adamc@768 292 NONE
adamc@768 293 in
adamc@768 294 if subsume (pk, #pkind rewr) then
adamc@768 295 case match () of
adamc@768 296 NONE => rew ls
adamc@768 297 | SOME suffixStart => #to rewr ^ String.extract (s, suffixStart, NONE)
adamc@768 298 else
adamc@768 299 rew ls
adamc@768 300 end
adamc@768 301 in
adamc@768 302 rew (!rewrites)
adamc@768 303 end
adamc@768 304
adamc@769 305 val url = ref ([] : rule list)
adamc@769 306 val mime = ref ([] : rule list)
adam@1465 307 val request = ref ([] : rule list)
adam@1465 308 val response = ref ([] : rule list)
adamc@769 309
adamc@769 310 fun setUrlRules ls = url := ls
adamc@769 311 fun setMimeRules ls = mime := ls
adam@1465 312 fun setRequestHeaderRules ls = request := ls
adam@1465 313 fun setResponseHeaderRules ls = response := ls
adamc@769 314
adamc@770 315 fun getUrlRules () = !url
adamc@770 316 fun getMimeRules () = !mime
adam@1465 317 fun getRequestHeaderRules () = !request
adam@1465 318 fun getResponseHeaderRules () = !response
adamc@770 319
adamc@769 320 fun check f rules s =
adamc@769 321 let
adamc@769 322 fun chk (ls : rule list) =
adamc@769 323 case ls of
adamc@769 324 [] => false
adamc@769 325 | rule :: ls =>
adamc@769 326 let
adamc@769 327 val matches =
adamc@769 328 case #kind rule of
adamc@769 329 Exact => #pattern rule = s
adamc@769 330 | Prefix => String.isPrefix (#pattern rule) s
adamc@769 331 in
adamc@769 332 if matches then
adamc@769 333 case #action rule of
adamc@769 334 Allow => true
adamc@769 335 | Deny => false
adamc@769 336 else
adamc@769 337 chk ls
adamc@769 338 end
adamc@769 339 in
adamc@769 340 f s andalso chk (!rules)
adamc@769 341 end
adamc@769 342
adamc@769 343 val checkUrl = check (fn _ => true) url
adam@1465 344
adam@1465 345 val validMime = CharVector.all (fn ch => Char.isAlphaNum ch orelse ch = #"/" orelse ch = #"-" orelse ch = #".")
adam@1465 346
adam@1465 347 val checkMime = check validMime mime
adam@1465 348 val checkRequestHeader = check validMime request
adam@1465 349 val checkResponseHeader = check validMime response
adamc@769 350
adamc@855 351
adamc@855 352 type protocol = {
adamc@855 353 name : string,
adamc@1096 354 compile : string,
adamc@1095 355 linkStatic : string,
adamc@1095 356 linkDynamic : string,
adamc@1164 357 persistent : bool,
adamc@1164 358 code : unit -> Print.PD.pp_desc
adamc@855 359 }
adamc@855 360 val protocols = ref ([] : protocol list)
adamc@855 361 fun addProtocol p = protocols := p :: !protocols
adamc@855 362 fun getProtocol s = List.find (fn p => #name p = s) (!protocols)
adamc@855 363
adamc@855 364 fun clibFile s = OS.Path.joinDirFile {dir = Config.libC,
adamc@855 365 file = s}
adamc@855 366
adamc@865 367 val curProto = ref {name = "",
adamc@1096 368 compile = "",
adamc@1095 369 linkStatic = "",
adamc@1095 370 linkDynamic = "",
adamc@1164 371 persistent = false,
adamc@1164 372 code = fn () => Print.box []}
adamc@856 373 fun setProtocol name =
adamc@856 374 case getProtocol name of
adamc@856 375 NONE => raise Fail ("Unknown protocol " ^ name)
adamc@856 376 | SOME p => curProto := p
adamc@855 377 fun currentProtocol () = !curProto
adamc@855 378
adamc@857 379 val debug = ref false
adamc@857 380 fun setDebug b = debug := b
adamc@857 381 fun getDebug () = !debug
adamc@857 382
adamc@867 383 datatype sql_type =
adamc@867 384 Int
adamc@867 385 | Float
adamc@867 386 | String
adamc@1011 387 | Char
adamc@867 388 | Bool
adamc@867 389 | Time
adamc@867 390 | Blob
adamc@867 391 | Channel
adamc@867 392 | Client
adamc@867 393 | Nullable of sql_type
adamc@867 394
adamc@873 395 fun p_sql_ctype t =
adamc@867 396 let
adamc@867 397 open Print.PD
adamc@867 398 open Print
adamc@867 399 in
adamc@867 400 case t of
adamc@870 401 Int => "uw_Basis_int"
adamc@870 402 | Float => "uw_Basis_float"
adamc@870 403 | String => "uw_Basis_string"
adamc@1011 404 | Char => "uw_Basis_char"
adamc@870 405 | Bool => "uw_Basis_bool"
adamc@870 406 | Time => "uw_Basis_time"
adamc@870 407 | Blob => "uw_Basis_blob"
adamc@870 408 | Channel => "uw_Basis_channel"
adamc@870 409 | Client => "uw_Basis_client"
adamc@870 410 | Nullable String => "uw_Basis_string"
adamc@873 411 | Nullable t => p_sql_ctype t ^ "*"
adamc@867 412 end
adamc@867 413
adamc@867 414 fun isBlob Blob = true
adamc@867 415 | isBlob (Nullable t) = isBlob t
adamc@867 416 | isBlob _ = false
adamc@867 417
adamc@870 418 fun isNotNull (Nullable _) = false
adamc@870 419 | isNotNull _ = true
adamc@870 420
adam@1293 421 datatype failure_mode = Error | None
adam@1293 422
adamc@866 423 type dbms = {
adamc@866 424 name : string,
adamc@866 425 header : string,
adamc@866 426 link : string,
adamc@873 427 p_sql_type : sql_type -> string,
adamc@870 428 init : {dbstring : string,
adamc@870 429 prepared : (string * int) list,
adamc@870 430 tables : (string * (string * sql_type) list) list,
adamc@872 431 views : (string * (string * sql_type) list) list,
adamc@870 432 sequences : string list} -> Print.PD.pp_desc,
adamc@873 433 query : {loc : ErrorMsg.span, cols : sql_type list,
adamc@880 434 doCols : ({loc : ErrorMsg.span, wontLeakStrings : bool, col : int, typ : sql_type} -> Print.PD.pp_desc)
adamc@867 435 -> Print.PD.pp_desc}
adamc@867 436 -> Print.PD.pp_desc,
adamc@867 437 queryPrepared : {loc : ErrorMsg.span, id : int, query : string,
adamc@873 438 inputs : sql_type list, cols : sql_type list,
adamc@880 439 doCols : ({loc : ErrorMsg.span, wontLeakStrings : bool, col : int,
adamc@880 440 typ : sql_type} -> Print.PD.pp_desc)
adamc@879 441 -> Print.PD.pp_desc,
adamc@879 442 nested : bool}
adamc@868 443 -> Print.PD.pp_desc,
adam@1293 444 dml : ErrorMsg.span * failure_mode -> Print.PD.pp_desc,
adamc@868 445 dmlPrepared : {loc : ErrorMsg.span, id : int, dml : string,
adam@1293 446 inputs : sql_type list, mode : failure_mode} -> Print.PD.pp_desc,
adamc@878 447 nextval : {loc : ErrorMsg.span, seqName : string option, seqE : Print.PD.pp_desc} -> Print.PD.pp_desc,
adamc@874 448 nextvalPrepared : {loc : ErrorMsg.span, id : int, query : string} -> Print.PD.pp_desc,
adamc@1073 449 setval : {loc : ErrorMsg.span, seqE : Print.PD.pp_desc, count : Print.PD.pp_desc} -> Print.PD.pp_desc,
adamc@874 450 sqlifyString : string -> string,
adamc@874 451 p_cast : string * sql_type -> string,
adamc@874 452 p_blank : int * sql_type -> string,
adamc@877 453 supportsDeleteAs : bool,
adamc@886 454 supportsUpdateAs : bool,
adamc@877 455 createSequence : string -> string,
adamc@878 456 textKeysNeedLengths : bool,
adamc@879 457 supportsNextval : bool,
adamc@882 458 supportsNestedPrepared : bool,
adamc@890 459 sqlPrefix : string,
adamc@1014 460 supportsOctetLength : bool,
adamc@1014 461 trueString : string,
adamc@1196 462 falseString : string,
adamc@1196 463 onlyUnion : bool,
adamc@1196 464 nestedRelops : bool
adamc@866 465 }
adamc@866 466
adamc@866 467 val dbmses = ref ([] : dbms list)
adamc@866 468 val curDb = ref ({name = "",
adamc@866 469 header = "",
adamc@866 470 link = "",
adamc@873 471 p_sql_type = fn _ => "",
adamc@867 472 init = fn _ => Print.box [],
adamc@867 473 query = fn _ => Print.box [],
adamc@868 474 queryPrepared = fn _ => Print.box [],
adamc@868 475 dml = fn _ => Print.box [],
adamc@869 476 dmlPrepared = fn _ => Print.box [],
adamc@869 477 nextval = fn _ => Print.box [],
adamc@874 478 nextvalPrepared = fn _ => Print.box [],
adamc@1073 479 setval = fn _ => Print.box [],
adamc@874 480 sqlifyString = fn s => s,
adamc@874 481 p_cast = fn _ => "",
adamc@874 482 p_blank = fn _ => "",
adamc@877 483 supportsDeleteAs = false,
adamc@886 484 supportsUpdateAs = false,
adamc@877 485 createSequence = fn _ => "",
adamc@878 486 textKeysNeedLengths = false,
adamc@879 487 supportsNextval = false,
adamc@882 488 supportsNestedPrepared = false,
adamc@890 489 sqlPrefix = "",
adamc@1014 490 supportsOctetLength = false,
adamc@1014 491 trueString = "",
adamc@1196 492 falseString = "",
adamc@1196 493 onlyUnion = false,
adamc@1196 494 nestedRelops = false} : dbms)
adamc@866 495
adamc@866 496 fun addDbms v = dbmses := v :: !dbmses
adamc@866 497 fun setDbms s =
adamc@866 498 case List.find (fn db => #name db = s) (!dbmses) of
adamc@866 499 NONE => raise Fail ("Unknown DBMS " ^ s)
adamc@866 500 | SOME db => curDb := db
adamc@866 501 fun currentDbms () = !curDb
adamc@866 502
adamc@891 503 val dbstring = ref (NONE : string option)
adamc@891 504 fun setDbstring so = dbstring := so
adamc@891 505 fun getDbstring () = !dbstring
adamc@891 506
adamc@891 507 val exe = ref (NONE : string option)
adamc@891 508 fun setExe so = exe := so
adamc@891 509 fun getExe () = !exe
adamc@891 510
adamc@891 511 val sql = ref (NONE : string option)
adamc@891 512 fun setSql so = sql := so
adamc@891 513 fun getSql () = !sql
adamc@891 514
adamc@1016 515 val coreInline = ref 20
adamc@1016 516 fun setCoreInline n = coreInline := n
adamc@1016 517 fun getCoreInline () = !coreInline
adamc@1016 518
adam@1351 519 val monoInline = ref 100
adamc@1016 520 fun setMonoInline n = monoInline := n
adamc@1016 521 fun getMonoInline () = !monoInline
adamc@1016 522
adamc@1095 523 val staticLinking = ref false
adamc@1095 524 fun setStaticLinking b = staticLinking := b
adamc@1095 525 fun getStaticLinking () = !staticLinking
adamc@1095 526
adamc@1114 527 val deadlines = ref false
adamc@1114 528 fun setDeadlines b = deadlines := b
adamc@1114 529 fun getDeadlines () = !deadlines
adamc@1114 530
adamc@1164 531 val sigFile = ref (NONE : string option)
adamc@1164 532 fun setSigFile v = sigFile := v
adamc@1164 533 fun getSigFile () = !sigFile
adamc@1164 534
adamc@1183 535 structure SS = BinarySetFn(struct
adamc@1183 536 type ord_key = string
adamc@1183 537 val compare = String.compare
adamc@1183 538 end)
adamc@1183 539
adamc@1183 540 val safeGet = ref SS.empty
adamc@1183 541 fun setSafeGets ls = safeGet := SS.addList (SS.empty, ls)
adamc@1183 542 fun isSafeGet x = SS.member (!safeGet, x)
adamc@1183 543
adam@1294 544 val onError = ref (NONE : (string * string list * string) option)
adam@1294 545 fun setOnError x = onError := x
adam@1294 546 fun getOnError () = !onError
adam@1294 547
adam@1307 548 val limits = ["messages", "clients", "headers", "page", "heap", "script",
adam@1307 549 "inputs", "subinputs", "cleanup", "deltas", "transactionals",
adam@1308 550 "globals", "database", "time"]
adam@1307 551
adam@1307 552 val limitsList = ref ([] : (string * int) list)
adam@1307 553 fun addLimit (v as (name, _)) =
adam@1307 554 if List.exists (fn name' => name' = name) limits then
adam@1308 555 (limitsList := v :: !limitsList;
adam@1308 556 if name = "time" then
adam@1308 557 setDeadlines true
adam@1308 558 else
adam@1308 559 ())
adam@1307 560 else
adam@1307 561 raise Fail ("Unknown limit category '" ^ name ^ "'")
adam@1307 562 fun limits () = !limitsList
adam@1307 563
adam@1332 564 val minHeap = ref 0
adam@1332 565 fun setMinHeap n = if n >= 0 then minHeap := n else raise Fail "Trying to set negative minHeap"
adam@1332 566 fun getMinHeap () = !minHeap
adam@1332 567
adam@1393 568 structure SS = BinarySetFn(struct
adam@1393 569 type ord_key = string
adam@1393 570 val compare = String.compare
adam@1393 571 end)
adam@1393 572
adam@1393 573 val alwaysInline = ref SS.empty
adam@1393 574 fun addAlwaysInline s = alwaysInline := SS.add (!alwaysInline, s)
adam@1393 575 fun checkAlwaysInline s = SS.member (!alwaysInline, s)
adam@1393 576
adam@1478 577 val noXsrfProtection = ref SS.empty
adam@1478 578 fun addNoXsrfProtection s = noXsrfProtection := SS.add (!noXsrfProtection, s)
adam@1478 579 fun checkNoXsrfProtection s = SS.member (!noXsrfProtection, s)
adam@1478 580
adamc@765 581 end