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author Julian Squires <julian@cipht.net>
date Mon, 04 May 2015 13:22:29 -0400
parents e8863d9f8c59
children d857da05f042
rev   line source
adamc@56 1 type int
adamc@56 2 type float
adamc@56 3 type string
adamc@821 4 type char
adamc@436 5 type time
adamc@737 6 type blob
adamc@91 7
adamc@119 8 type unit = {}
adamc@119 9
adamc@186 10 datatype bool = False | True
adamc@186 11
adamc@288 12 datatype option t = None | Some of t
adamc@284 13
adamc@757 14 datatype list t = Nil | Cons of t * list t
adamc@757 15
adamc@91 16
adam@1287 17 (** Polymorphic variants *)
adam@1287 18
adam@1287 19 con variant :: {Type} -> Type
adam@1287 20 val make : nm :: Name -> t ::: Type -> ts ::: {Type} -> [[nm] ~ ts] => t -> variant ([nm = t] ++ ts)
adam@1287 21 val match : ts ::: {Type} -> t ::: Type -> variant ts -> $(map (fn t' => t' -> t) ts) -> t
adam@1287 22
adam@1287 23
adamc@256 24 (** Basic type classes *)
adamc@256 25
adamc@256 26 class eq
adamc@256 27 val eq : t ::: Type -> eq t -> t -> t -> bool
adamc@257 28 val ne : t ::: Type -> eq t -> t -> t -> bool
adamc@256 29 val eq_int : eq int
adamc@394 30 val eq_float : eq float
adamc@256 31 val eq_string : eq string
adamc@821 32 val eq_char : eq char
adamc@256 33 val eq_bool : eq bool
adamc@437 34 val eq_time : eq time
adamc@422 35 val mkEq : t ::: Type -> (t -> t -> bool) -> eq t
adamc@256 36
adamc@389 37 class num
adamc@417 38 val zero : t ::: Type -> num t -> t
adamc@389 39 val neg : t ::: Type -> num t -> t -> t
adamc@389 40 val plus : t ::: Type -> num t -> t -> t -> t
adamc@389 41 val minus : t ::: Type -> num t -> t -> t -> t
adamc@389 42 val times : t ::: Type -> num t -> t -> t -> t
adamc@775 43 val divide : t ::: Type -> num t -> t -> t -> t
adamc@389 44 val mod : t ::: Type -> num t -> t -> t -> t
adam@1832 45 val pow : t ::: Type -> num t -> t -> t -> t
adamc@389 46 val num_int : num int
adamc@390 47 val num_float : num float
adamc@389 48
adamc@391 49 class ord
adamc@391 50 val lt : t ::: Type -> ord t -> t -> t -> bool
adamc@391 51 val le : t ::: Type -> ord t -> t -> t -> bool
adamc@391 52 val gt : t ::: Type -> ord t -> t -> t -> bool
adamc@391 53 val ge : t ::: Type -> ord t -> t -> t -> bool
adamc@391 54 val ord_int : ord int
adamc@394 55 val ord_float : ord float
adamc@394 56 val ord_string : ord string
adamc@821 57 val ord_char : ord char
adamc@394 58 val ord_bool : ord bool
adamc@437 59 val ord_time : ord time
adamc@961 60 val mkOrd : t ::: Type -> {Lt : t -> t -> bool, Le : t -> t -> bool} -> ord t
adamc@391 61
adamc@256 62
adamc@1061 63 (** Character operations *)
adamc@1061 64
adamc@1061 65 val isalnum : char -> bool
adamc@1061 66 val isalpha : char -> bool
adamc@1061 67 val isblank : char -> bool
adamc@1061 68 val iscntrl : char -> bool
adamc@1061 69 val isdigit : char -> bool
adamc@1061 70 val isgraph : char -> bool
adamc@1061 71 val islower : char -> bool
adamc@1061 72 val isprint : char -> bool
adamc@1061 73 val ispunct : char -> bool
adamc@1061 74 val isspace : char -> bool
adamc@1061 75 val isupper : char -> bool
adamc@1061 76 val isxdigit : char -> bool
adamc@1061 77 val tolower : char -> char
adamc@1061 78 val toupper : char -> char
adamc@1128 79 val ord : char -> int
adamc@1128 80 val chr : int -> char
adamc@1061 81
adamc@283 82 (** String operations *)
adamc@283 83
adamc@828 84 val strlen : string -> int
adam@1388 85 val strlenGe : string -> int -> bool
adamc@283 86 val strcat : string -> string -> string
adamc@821 87 val strsub : string -> int -> char
adamc@821 88 val strsuffix : string -> int -> string
adamc@829 89 val strchr : string -> char -> option string
adamc@829 90 val strindex : string -> char -> option int
adam@1390 91 val strsindex : string -> string -> option int
adamc@1272 92 val strcspn : string -> string -> int
adamc@829 93 val substring : string -> int -> int -> string
adamc@1023 94 val str1 : char -> string
adamc@283 95
adamc@286 96 class show
adamc@286 97 val show : t ::: Type -> show t -> t -> string
adamc@286 98 val show_int : show int
adamc@286 99 val show_float : show float
adamc@286 100 val show_string : show string
adamc@821 101 val show_char : show char
adamc@286 102 val show_bool : show bool
adamc@436 103 val show_time : show time
adamc@452 104 val mkShow : t ::: Type -> (t -> string) -> show t
adamc@286 105
adamc@290 106 class read
adamc@290 107 val read : t ::: Type -> read t -> string -> option t
adamc@292 108 val readError : t ::: Type -> read t -> string -> t
adamc@292 109 (* [readError] calls [error] if the input is malformed. *)
adamc@290 110 val read_int : read int
adamc@290 111 val read_float : read float
adamc@290 112 val read_string : read string
adamc@821 113 val read_char : read char
adamc@290 114 val read_bool : read bool
adamc@436 115 val read_time : read time
adamc@777 116 val mkRead : t ::: Type -> (string -> t) -> (string -> option t) -> read t
adamc@288 117
adamc@283 118
adamc@564 119 (** * Monads *)
adamc@564 120
adamc@711 121 class monad :: (Type -> Type) -> Type
adamc@564 122 val return : m ::: (Type -> Type) -> t ::: Type
adamc@564 123 -> monad m
adamc@564 124 -> t -> m t
adamc@564 125 val bind : m ::: (Type -> Type) -> t1 ::: Type -> t2 ::: Type
adamc@564 126 -> monad m
adamc@564 127 -> m t1 -> (t1 -> m t2)
adamc@564 128 -> m t2
adamc@564 129
adam@1544 130 val mkMonad : m ::: (Type -> Type)
adam@1544 131 -> {Return : t ::: Type -> t -> m t,
adam@1544 132 Bind : t1 ::: Type -> t2 ::: Type -> m t1 -> (t1 -> m t2) -> m t2}
adam@1544 133 -> monad m
adam@1544 134
adamc@456 135 con transaction :: Type -> Type
adamc@564 136 val transaction_monad : monad transaction
adamc@456 137
adamc@565 138 con source :: Type -> Type
adamc@565 139 val source : t ::: Type -> t -> transaction (source t)
adamc@575 140 val set : t ::: Type -> source t -> t -> transaction unit
adamc@601 141 val get : t ::: Type -> source t -> transaction t
adamc@565 142
adamc@565 143 con signal :: Type -> Type
adamc@565 144 val signal_monad : monad signal
adamc@565 145 val signal : t ::: Type -> source t -> signal t
adamc@841 146 val current : t ::: Type -> signal t -> transaction t
adamc@456 147
adamc@456 148
adam@1571 149 (** * Floats *)
adam@1571 150
adam@1571 151 val float : int -> float
adam@1571 152 val ceil : float -> int
adam@1571 153 val trunc : float -> int
adam@1571 154 val round : float -> int
adam@1571 155
adam@1571 156
adamc@1006 157 (** * Time *)
adamc@1006 158
adamc@1006 159 val now : transaction time
adamc@1050 160 val minTime : time
adam@1369 161 val addSeconds : time -> int -> time
adam@1514 162 val toSeconds : time -> int
adam@1514 163 val diffInSeconds : time -> time -> int
adam@1514 164 (* Earlier time first *)
adam@1685 165 val toMilliseconds : time -> int
adam@1685 166 val diffInMilliseconds : time -> time -> int
adam@1359 167 val timef : string -> time -> string (* Uses strftime() format string *)
adam@1372 168 val readUtc : string -> option time
adamc@1006 169
phurst@1971 170 (* Takes a year, month, day, hour, minute, second. *)
phurst@1971 171 val fromDatetime : int -> int -> int -> int -> int -> int -> time
phurst@1971 172 val datetimeYear : time -> int
phurst@1971 173 val datetimeMonth : time -> int
phurst@1971 174 val datetimeDay : time -> int
phurst@1971 175 val datetimeHour : time -> int
phurst@1971 176 val datetimeMinute: time -> int
phurst@1971 177 val datetimeSecond : time -> int
phurst@1973 178 val datetimeDayOfWeek : time -> int
phurst@1971 179
adamc@1006 180
adam@1360 181 (** * Encryption *)
adam@1360 182
adam@1360 183 val crypt : string -> string -> string
adam@1360 184
adam@1360 185
adamc@456 186 (** HTTP operations *)
adamc@456 187
adamc@459 188 con http_cookie :: Type -> Type
adamc@459 189 val getCookie : t ::: Type -> http_cookie t -> transaction (option t)
adamc@1050 190 val setCookie : t ::: Type -> http_cookie t -> {Value : t,
adamc@1050 191 Expires : option time,
adamc@1050 192 Secure : bool} -> transaction unit
adamc@1050 193 val clearCookie : t ::: Type -> http_cookie t -> transaction unit
adamc@459 194
adam@1465 195 type requestHeader
adam@1465 196 val blessRequestHeader : string -> requestHeader
adam@1465 197 val checkRequestHeader : string -> option requestHeader
adam@1465 198 val getHeader : requestHeader -> transaction (option string)
adam@1465 199
adam@1465 200 type responseHeader
adam@1465 201 val blessResponseHeader : string -> responseHeader
adam@1465 202 val checkResponseHeader : string -> option responseHeader
adam@1465 203 val setHeader : responseHeader -> string -> transaction unit
adam@1465 204
adam@1799 205 type envVar
adam@1799 206 val blessEnvVar : string -> envVar
adam@1799 207 val checkEnvVar : string -> option envVar
adam@1799 208 val getenv : envVar -> transaction (option string)
adam@1799 209
adamc@456 210
adamc@566 211 (** JavaScript-y gadgets *)
adamc@566 212
adamc@566 213 val alert : string -> transaction unit
adam@1290 214 val confirm : string -> transaction bool
adamc@694 215 val spawn : transaction unit -> transaction unit
adamc@695 216 val sleep : int -> transaction unit
adamc@566 217
adamc@908 218 val rpc : t ::: Type -> transaction t -> transaction t
adam@1848 219 val tryRpc : t ::: Type -> transaction t -> transaction (option t)
adam@1848 220 (* Returns [None] on error condition. *)
adamc@908 221
adamc@566 222
adamc@678 223 (** Channels *)
adamc@678 224
adamc@678 225 con channel :: Type -> Type
adamc@678 226 val channel : t ::: Type -> transaction (channel t)
adamc@678 227 val send : t ::: Type -> channel t -> t -> transaction unit
adamc@678 228 val recv : t ::: Type -> channel t -> transaction t
adamc@678 229
adamc@682 230 type client
adamc@682 231 val self : transaction client
adamc@682 232
adamc@678 233
adamc@203 234 (** SQL *)
adamc@203 235
adamc@705 236 con sql_table :: {Type} -> {{Unit}} -> Type
adamc@753 237 con sql_view :: {Type} -> Type
adamc@753 238
adamc@753 239 class fieldsOf :: Type -> {Type} -> Type
adamc@753 240 val fieldsOf_table : fs ::: {Type} -> keys ::: {{Unit}}
adamc@753 241 -> fieldsOf (sql_table fs keys) fs
adamc@753 242 val fieldsOf_view : fs ::: {Type}
adamc@753 243 -> fieldsOf (sql_view fs) fs
adamc@203 244
adamc@704 245 (*** Constraints *)
adamc@704 246
adamc@707 247 (**** Primary keys *)
adamc@707 248
adamc@707 249 class sql_injectable_prim
adamc@707 250 val sql_bool : sql_injectable_prim bool
adamc@707 251 val sql_int : sql_injectable_prim int
adamc@707 252 val sql_float : sql_injectable_prim float
adamc@707 253 val sql_string : sql_injectable_prim string
adamc@1011 254 val sql_char : sql_injectable_prim char
adamc@707 255 val sql_time : sql_injectable_prim time
adamc@737 256 val sql_blob : sql_injectable_prim blob
adamc@707 257 val sql_channel : t ::: Type -> sql_injectable_prim (channel t)
adamc@707 258 val sql_client : sql_injectable_prim client
adamc@707 259
adamc@1104 260 con serialized :: Type -> Type
adamc@1104 261 val serialize : t ::: Type -> t -> serialized t
adamc@1104 262 val deserialize : t ::: Type -> serialized t -> t
adamc@1104 263 val sql_serialized : t ::: Type -> sql_injectable_prim (serialized t)
adamc@1104 264
adamc@707 265 con primary_key :: {Type} -> {{Unit}} -> Type
adamc@707 266 val no_primary_key : fs ::: {Type} -> primary_key fs []
adamc@707 267 val primary_key : rest ::: {Type} -> t ::: Type -> key1 :: Name -> keys :: {Type}
adamc@707 268 -> [[key1] ~ keys] => [[key1 = t] ++ keys ~ rest]
adamc@707 269 => $([key1 = sql_injectable_prim t] ++ map sql_injectable_prim keys)
adamc@707 270 -> primary_key ([key1 = t] ++ keys ++ rest)
adamc@707 271 [Pkey = [key1] ++ map (fn _ => ()) keys]
adamc@707 272
adamc@707 273 (**** Other constraints *)
adamc@707 274
adamc@705 275 con sql_constraints :: {Type} -> {{Unit}} -> Type
adamc@705 276 (* Arguments: column types, uniqueness implications of constraints *)
adamc@704 277
adamc@705 278 con sql_constraint :: {Type} -> {Unit} -> Type
adamc@704 279
adamc@705 280 val no_constraint : fs ::: {Type} -> sql_constraints fs []
adamc@705 281 val one_constraint : fs ::: {Type} -> unique ::: {Unit} -> name :: Name
adamc@705 282 -> sql_constraint fs unique
adamc@705 283 -> sql_constraints fs [name = unique]
adamc@705 284 val join_constraints : fs ::: {Type}
adamc@705 285 -> uniques1 ::: {{Unit}} -> uniques2 ::: {{Unit}} -> [uniques1 ~ uniques2]
adamc@705 286 => sql_constraints fs uniques1 -> sql_constraints fs uniques2
adamc@705 287 -> sql_constraints fs (uniques1 ++ uniques2)
adamc@705 288
adamc@709 289
adamc@705 290 val unique : rest ::: {Type} -> t ::: Type -> unique1 :: Name -> unique :: {Type}
adamc@705 291 -> [[unique1] ~ unique] => [[unique1 = t] ++ unique ~ rest]
adamc@705 292 => sql_constraint ([unique1 = t] ++ unique ++ rest) ([unique1] ++ map (fn _ => ()) unique)
adamc@704 293
adamc@712 294 class linkable :: Type -> Type -> Type
adamc@712 295 val linkable_same : t ::: Type -> linkable t t
adamc@712 296 val linkable_from_nullable : t ::: Type -> linkable (option t) t
adamc@712 297 val linkable_to_nullable : t ::: Type -> linkable t (option t)
adamc@712 298
adamc@709 299 con matching :: {Type} -> {Type} -> Type
adamc@709 300 val mat_nil : matching [] []
adamc@712 301 val mat_cons : t1 ::: Type -> rest1 ::: {Type} -> t2 ::: Type -> rest2 ::: {Type}
adamc@709 302 -> nm1 :: Name -> nm2 :: Name
adamc@709 303 -> [[nm1] ~ rest1] => [[nm2] ~ rest2]
adamc@712 304 => linkable t1 t2
adamc@712 305 -> matching rest1 rest2
adamc@712 306 -> matching ([nm1 = t1] ++ rest1) ([nm2 = t2] ++ rest2)
adamc@709 307
adamc@709 308 con propagation_mode :: {Type} -> Type
adamc@709 309 val restrict : fs ::: {Type} -> propagation_mode fs
adamc@709 310 val cascade : fs ::: {Type} -> propagation_mode fs
adamc@709 311 val no_action : fs ::: {Type} -> propagation_mode fs
adamc@709 312 val set_null : fs ::: {Type} -> propagation_mode (map option fs)
adamc@709 313
adamc@709 314
adamc@709 315 val foreign_key : mine1 ::: Name -> t ::: Type -> mine ::: {Type} -> munused ::: {Type}
adamc@709 316 -> foreign ::: {Type} -> funused ::: {Type}
adamc@709 317 -> nm ::: Name -> uniques ::: {{Unit}}
adamc@709 318 -> [[mine1] ~ mine] => [[mine1 = t] ++ mine ~ munused]
adamc@709 319 => [foreign ~ funused] => [[nm] ~ uniques]
adamc@709 320 => matching ([mine1 = t] ++ mine) foreign
adamc@709 321 -> sql_table (foreign ++ funused) ([nm = map (fn _ => ()) foreign] ++ uniques)
adamc@709 322 -> {OnDelete : propagation_mode ([mine1 = t] ++ mine),
adamc@709 323 OnUpdate : propagation_mode ([mine1 = t] ++ mine)}
adamc@709 324 -> sql_constraint ([mine1 = t] ++ mine ++ munused) []
adamc@709 325
adam@1778 326 con sql_exp :: {{Type}} -> {{Type}} -> {Type} -> Type -> Type
adam@1778 327 val sql_exp_weaken : fs ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type} -> t ::: Type
adamc@1072 328 -> fs' ::: {{Type}} -> agg' ::: {{Type}} -> exps' ::: {Type}
adamc@1072 329 -> [fs ~ fs'] => [agg ~ agg'] => [exps ~ exps'] =>
adam@1778 330 sql_exp fs agg exps t
adam@1778 331 -> sql_exp (fs ++ fs') (agg ++ agg') (exps ++ exps') t
adamc@714 332
adamc@714 333 val check : fs ::: {Type}
adam@1778 334 -> sql_exp [] [] fs bool
adamc@714 335 -> sql_constraint fs []
adamc@714 336
adamc@714 337
adamc@204 338 (*** Queries *)
adamc@204 339
adam@1394 340 con sql_query :: {{Type}} -> {{Type}} -> {{Type}} -> {Type} -> Type
adam@1394 341 con sql_query1 :: {{Type}} -> {{Type}} -> {{Type}} -> {{Type}} -> {Type} -> Type
adamc@204 342
adamc@223 343 con sql_subset :: {{Type}} -> {{Type}} -> Type
adamc@223 344 val sql_subset : keep_drop :: {({Type} * {Type})}
adamc@354 345 -> sql_subset
adamc@621 346 (map (fn fields :: ({Type} * {Type}) => fields.1 ++ fields.2) keep_drop)
adamc@621 347 (map (fn fields :: ({Type} * {Type}) => fields.1) keep_drop)
adamc@354 348 val sql_subset_all : tables :: {{Type}} -> sql_subset tables tables
adamc@1072 349 val sql_subset_concat : big1 ::: {{Type}} -> little1 ::: {{Type}}
adamc@1072 350 -> big2 ::: {{Type}} -> little2 ::: {{Type}}
adamc@1072 351 -> [big1 ~ big2] => [little1 ~ little2] =>
adamc@1072 352 sql_subset big1 little1
adamc@1072 353 -> sql_subset big2 little2
adamc@1072 354 -> sql_subset (big1 ++ big2) (little1 ++ little2)
adamc@223 355
adamc@1191 356 con sql_from_items :: {{Type}} -> {{Type}} -> Type
adamc@748 357
adamc@1195 358 val sql_from_nil : free ::: {{Type}} -> sql_from_items free []
adamc@1191 359 val sql_from_table : free ::: {{Type}} -> t ::: Type -> fs ::: {Type}
adamc@753 360 -> fieldsOf t fs -> name :: Name
adamc@1191 361 -> t -> sql_from_items free [name = fs]
adamc@1192 362 val sql_from_query : free ::: {{Type}} -> fs ::: {Type} -> name :: Name
adam@1394 363 -> sql_query free [] [] fs
adamc@1192 364 -> sql_from_items free [name = fs]
adamc@1191 365 val sql_from_comma : free ::: {{Type}} -> tabs1 ::: {{Type}} -> tabs2 ::: {{Type}}
adamc@748 366 -> [tabs1 ~ tabs2]
adamc@1191 367 => sql_from_items free tabs1 -> sql_from_items free tabs2
adamc@1191 368 -> sql_from_items free (tabs1 ++ tabs2)
adamc@1191 369 val sql_inner_join : free ::: {{Type}} -> tabs1 ::: {{Type}} -> tabs2 ::: {{Type}}
adamc@1191 370 -> [free ~ tabs1] => [free ~ tabs2] => [tabs1 ~ tabs2]
adamc@1191 371 => sql_from_items free tabs1 -> sql_from_items free tabs2
adam@1778 372 -> sql_exp (free ++ tabs1 ++ tabs2) [] [] bool
adamc@1191 373 -> sql_from_items free (tabs1 ++ tabs2)
adamc@748 374
adamc@750 375 class nullify :: Type -> Type -> Type
adamc@750 376 val nullify_option : t ::: Type -> nullify (option t) (option t)
adamc@750 377 val nullify_prim : t ::: Type -> sql_injectable_prim t -> nullify t (option t)
adamc@750 378
adamc@1191 379 val sql_left_join : free ::: {{Type}} -> tabs1 ::: {{Type}} -> tabs2 ::: {{(Type * Type)}}
adamc@1191 380 -> [free ~ tabs1] => [free ~ tabs2] => [tabs1 ~ tabs2]
adamc@750 381 => $(map (fn r => $(map (fn p :: (Type * Type) => nullify p.1 p.2) r)) tabs2)
adamc@1191 382 -> sql_from_items free tabs1 -> sql_from_items free (map (map (fn p :: (Type * Type) => p.1)) tabs2)
adam@1778 383 -> sql_exp (free ++ tabs1 ++ map (map (fn p :: (Type * Type) => p.1)) tabs2) [] [] bool
adamc@1191 384 -> sql_from_items free (tabs1 ++ map (map (fn p :: (Type * Type) => p.2)) tabs2)
adamc@750 385
adamc@1191 386 val sql_right_join : free ::: {{Type}} -> tabs1 ::: {{(Type * Type)}} -> tabs2 ::: {{Type}}
adamc@1191 387 -> [free ~ tabs1] => [free ~ tabs2] => [tabs1 ~ tabs2]
adamc@751 388 => $(map (fn r => $(map (fn p :: (Type * Type) => nullify p.1 p.2) r)) tabs1)
adamc@1191 389 -> sql_from_items free (map (map (fn p :: (Type * Type) => p.1)) tabs1) -> sql_from_items free tabs2
adam@1778 390 -> sql_exp (free ++ map (map (fn p :: (Type * Type) => p.1)) tabs1 ++ tabs2) [] [] bool
adamc@1191 391 -> sql_from_items free (map (map (fn p :: (Type * Type) => p.2)) tabs1 ++ tabs2)
adamc@751 392
adamc@1191 393 val sql_full_join : free ::: {{Type}} -> tabs1 ::: {{(Type * Type)}} -> tabs2 ::: {{(Type * Type)}}
adamc@1191 394 -> [free ~ tabs1] => [free ~ tabs2] => [tabs1 ~ tabs2]
adamc@751 395 => $(map (fn r => $(map (fn p :: (Type * Type) => nullify p.1 p.2) r)) (tabs1 ++ tabs2))
adamc@1191 396 -> sql_from_items free (map (map (fn p :: (Type * Type) => p.1)) tabs1)
adamc@1191 397 -> sql_from_items free (map (map (fn p :: (Type * Type) => p.1)) tabs2)
adam@1778 398 -> sql_exp (free ++ map (map (fn p :: (Type * Type) => p.1)) (tabs1 ++ tabs2)) [] [] bool
adamc@1191 399 -> sql_from_items free (map (map (fn p :: (Type * Type) => p.2)) (tabs1 ++ tabs2))
adamc@751 400
adam@1778 401 (** [ORDER BY] and [SELECT] expressions may use window functions, so we introduce a type family for such expressions. *)
adam@1778 402 con sql_expw :: {{Type}} -> {{Type}} -> {Type} -> Type -> Type
adam@1778 403
adamc@1191 404 val sql_query1 : free ::: {{Type}}
adam@1394 405 -> afree ::: {{Type}}
adamc@1191 406 -> tables ::: {{Type}}
adamc@354 407 -> grouped ::: {{Type}}
adamc@354 408 -> selectedFields ::: {{Type}}
adamc@354 409 -> selectedExps ::: {Type}
adamc@1070 410 -> empties :: {Unit}
adamc@1191 411 -> [free ~ tables]
adamc@1191 412 => [free ~ grouped]
adam@1394 413 => [afree ~ tables]
adamc@1191 414 => [empties ~ selectedFields]
adamc@1070 415 => {Distinct : bool,
adamc@1191 416 From : sql_from_items free tables,
adam@1778 417 Where : sql_exp (free ++ tables) afree [] bool,
adamc@748 418 GroupBy : sql_subset tables grouped,
adam@1778 419 Having : sql_exp (free ++ grouped) (afree ++ tables) [] bool,
adamc@1070 420 SelectFields : sql_subset grouped (map (fn _ => []) empties ++ selectedFields),
adam@1778 421 SelectExps : $(map (sql_expw (free ++ grouped) (afree ++ tables) [])
adamc@705 422 selectedExps) }
adam@1394 423 -> sql_query1 free afree tables selectedFields selectedExps
adamc@229 424
adam@1682 425 type sql_relop
adamc@229 426 val sql_union : sql_relop
adamc@229 427 val sql_intersect : sql_relop
adamc@229 428 val sql_except : sql_relop
adamc@1191 429 val sql_relop : free ::: {{Type}}
adam@1394 430 -> afree ::: {{Type}}
adamc@1191 431 -> tables1 ::: {{Type}}
adamc@354 432 -> tables2 ::: {{Type}}
adamc@354 433 -> selectedFields ::: {{Type}}
adamc@354 434 -> selectedExps ::: {Type}
adamc@354 435 -> sql_relop
adam@1427 436 -> bool (* ALL *)
adam@1394 437 -> sql_query1 free afree tables1 selectedFields selectedExps
adam@1394 438 -> sql_query1 free afree tables2 selectedFields selectedExps
adam@1394 439 -> sql_query1 free afree [] selectedFields selectedExps
adam@1394 440 val sql_forget_tables : free ::: {{Type}} -> afree ::: {{Type}} -> tables ::: {{Type}} -> selectedFields ::: {{Type}} -> selectedExps ::: {Type}
adam@1394 441 -> sql_query1 free afree tables selectedFields selectedExps
adam@1394 442 -> sql_query1 free afree [] selectedFields selectedExps
adamc@229 443
adamc@230 444 type sql_direction
adamc@230 445 val sql_asc : sql_direction
adamc@230 446 val sql_desc : sql_direction
adamc@230 447
adam@1778 448 (** This type class supports automatic injection of either regular or window expressions into [sql_expw]. *)
adam@1778 449 class sql_window :: ({{Type}} -> {{Type}} -> {Type} -> Type -> Type) -> Type
adam@1778 450 val sql_window_normal : sql_window sql_exp
adam@1778 451 val sql_window_fancy : sql_window sql_expw
adam@1778 452 val sql_window : tf ::: ({{Type}} -> {{Type}} -> {Type} -> Type -> Type)
adam@1778 453 -> tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type} -> t ::: Type
adam@1778 454 -> sql_window tf
adam@1778 455 -> tf tables agg exps t
adam@1778 456 -> sql_expw tables agg exps t
adam@1778 457
adamc@234 458 con sql_order_by :: {{Type}} -> {Type} -> Type
adamc@234 459 val sql_order_by_Nil : tables ::: {{Type}} -> exps :: {Type} -> sql_order_by tables exps
adam@1778 460 val sql_order_by_Cons : tf ::: ({{Type}} -> {{Type}} -> {Type} -> Type -> Type) -> tables ::: {{Type}} -> exps ::: {Type} -> t ::: Type
adam@1778 461 -> sql_window tf
adam@1778 462 -> tf tables [] exps t -> sql_direction
adamc@354 463 -> sql_order_by tables exps
adamc@354 464 -> sql_order_by tables exps
adam@1682 465 val sql_order_by_random : tables ::: {{Type}} -> exps ::: {Type}
adam@1682 466 -> sql_order_by tables exps
adamc@230 467
adamc@231 468 type sql_limit
adamc@231 469 val sql_no_limit : sql_limit
adamc@231 470 val sql_limit : int -> sql_limit
adam@1682 471
adamc@232 472 type sql_offset
adamc@232 473 val sql_no_offset : sql_offset
adamc@232 474 val sql_offset : int -> sql_offset
adamc@232 475
adamc@1191 476 val sql_query : free ::: {{Type}}
adam@1394 477 -> afree ::: {{Type}}
adamc@1191 478 -> tables ::: {{Type}}
adamc@354 479 -> selectedFields ::: {{Type}}
adamc@354 480 -> selectedExps ::: {Type}
adamc@1191 481 -> [free ~ tables]
adam@1394 482 => {Rows : sql_query1 free afree tables selectedFields selectedExps,
adamc@1191 483 OrderBy : sql_order_by (free ++ tables) selectedExps,
adamc@354 484 Limit : sql_limit,
adamc@354 485 Offset : sql_offset}
adam@1394 486 -> sql_query free afree selectedFields selectedExps
adamc@204 487
adamc@354 488 val sql_field : otherTabs ::: {{Type}} -> otherFields ::: {Type}
adam@1778 489 -> fieldType ::: Type -> agg ::: {{Type}}
adamc@354 490 -> exps ::: {Type}
adamc@354 491 -> tab :: Name -> field :: Name
adamc@354 492 -> sql_exp
adamc@354 493 ([tab = [field = fieldType] ++ otherFields] ++ otherTabs)
adam@1778 494 agg exps fieldType
adamc@234 495
adam@1778 496 val sql_exp : tabs ::: {{Type}} -> agg ::: {{Type}} -> t ::: Type -> rest ::: {Type}
adamc@354 497 -> nm :: Name
adam@1778 498 -> sql_exp tabs agg ([nm = t] ++ rest) t
adamc@209 499
adamc@221 500 class sql_injectable
adamc@676 501 val sql_prim : t ::: Type -> sql_injectable_prim t -> sql_injectable t
adamc@676 502 val sql_option_prim : t ::: Type -> sql_injectable_prim t -> sql_injectable (option t)
adamc@676 503
adamc@354 504 val sql_inject : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adam@1778 505 -> t ::: Type
adam@1778 506 -> sql_injectable t -> t -> sql_exp tables agg exps t
adamc@209 507
adamc@470 508 val sql_is_null : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adam@1778 509 -> t ::: Type
adam@1778 510 -> sql_exp tables agg exps (option t)
adam@1778 511 -> sql_exp tables agg exps bool
adamc@470 512
adam@1602 513 val sql_coalesce : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adam@1778 514 -> t ::: Type
adam@1778 515 -> sql_exp tables agg exps (option t)
adam@1778 516 -> sql_exp tables agg exps t
adam@1778 517 -> sql_exp tables agg exps t
adam@1602 518
kkallio@1572 519 val sql_if_then_else : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adam@1778 520 -> t ::: Type
adam@1778 521 -> sql_exp tables agg exps bool
adam@1778 522 -> sql_exp tables agg exps t
adam@1778 523 -> sql_exp tables agg exps t
adam@1778 524 -> sql_exp tables agg exps t
kkallio@1572 525
adamc@559 526 class sql_arith
adam@1427 527 val sql_arith_int : sql_arith int
adam@1427 528 val sql_arith_float : sql_arith float
adam@1427 529 val sql_arith_option : t ::: Type -> sql_arith t -> sql_arith (option t)
adamc@559 530
adamc@220 531 con sql_unary :: Type -> Type -> Type
adamc@220 532 val sql_not : sql_unary bool bool
adamc@354 533 val sql_unary : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adam@1778 534 -> arg ::: Type -> res ::: Type
adam@1778 535 -> sql_unary arg res -> sql_exp tables agg exps arg
adam@1778 536 -> sql_exp tables agg exps res
adamc@220 537
adamc@559 538 val sql_neg : t ::: Type -> sql_arith t -> sql_unary t t
adamc@559 539
adamc@220 540 con sql_binary :: Type -> Type -> Type -> Type
adamc@220 541 val sql_and : sql_binary bool bool bool
adamc@220 542 val sql_or : sql_binary bool bool bool
adamc@234 543 val sql_binary : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adam@1778 544 -> arg1 ::: Type -> arg2 ::: Type -> res ::: Type
adam@1778 545 -> sql_binary arg1 arg2 res -> sql_exp tables agg exps arg1
adam@1778 546 -> sql_exp tables agg exps arg2
adam@1778 547 -> sql_exp tables agg exps res
adamc@220 548
adamc@559 549 val sql_plus : t ::: Type -> sql_arith t -> sql_binary t t t
adamc@559 550 val sql_minus : t ::: Type -> sql_arith t -> sql_binary t t t
adamc@559 551 val sql_times : t ::: Type -> sql_arith t -> sql_binary t t t
adamc@559 552 val sql_div : t ::: Type -> sql_arith t -> sql_binary t t t
adamc@559 553 val sql_mod : sql_binary int int int
adamc@559 554
adamc@559 555 val sql_eq : t ::: Type -> sql_binary t t bool
adamc@559 556 val sql_ne : t ::: Type -> sql_binary t t bool
adamc@559 557 val sql_lt : t ::: Type -> sql_binary t t bool
adamc@559 558 val sql_le : t ::: Type -> sql_binary t t bool
adamc@559 559 val sql_gt : t ::: Type -> sql_binary t t bool
adamc@559 560 val sql_ge : t ::: Type -> sql_binary t t bool
adamc@203 561
kkallio@1607 562 val sql_like : sql_binary string string bool
kkallio@1607 563
adam@1778 564 val sql_count : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adam@1778 565 -> sql_exp tables agg exps int
adamc@235 566
adamc@1187 567 con sql_aggregate :: Type -> Type -> Type
adamc@354 568 val sql_aggregate : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adam@1778 569 -> dom ::: Type -> ran ::: Type
adam@1778 570 -> sql_aggregate dom ran -> sql_exp agg agg exps dom
adam@1778 571 -> sql_exp tables agg exps ran
adamc@1187 572
adamc@1187 573 val sql_count_col : t ::: Type -> sql_aggregate (option t) int
adamc@236 574
adamc@236 575 class sql_summable
adamc@236 576 val sql_summable_int : sql_summable int
adamc@236 577 val sql_summable_float : sql_summable float
adam@1357 578 val sql_summable_option : t ::: Type -> sql_summable t -> sql_summable (option t)
adam@1777 579 val sql_avg : t ::: Type -> sql_summable t -> sql_aggregate t (option float)
adam@1394 580 val sql_sum : t ::: Type -> nt ::: Type -> sql_summable t -> nullify t nt -> sql_aggregate t nt
adamc@236 581
adamc@236 582 class sql_maxable
adamc@236 583 val sql_maxable_int : sql_maxable int
adamc@236 584 val sql_maxable_float : sql_maxable float
adamc@236 585 val sql_maxable_string : sql_maxable string
adamc@437 586 val sql_maxable_time : sql_maxable time
adam@1357 587 val sql_maxable_option : t ::: Type -> sql_maxable t -> sql_maxable (option t)
adam@1394 588 val sql_max : t ::: Type -> nt ::: Type -> sql_maxable t -> nullify t nt -> sql_aggregate t nt
adam@1394 589 val sql_min : t ::: Type -> nt ::: Type -> sql_maxable t -> nullify t nt -> sql_aggregate t nt
adamc@236 590
adamc@441 591 con sql_nfunc :: Type -> Type
adamc@441 592 val sql_nfunc : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adam@1778 593 -> t ::: Type
adam@1778 594 -> sql_nfunc t -> sql_exp tables agg exps t
adamc@441 595 val sql_current_timestamp : sql_nfunc time
adamc@441 596
adamc@746 597 con sql_ufunc :: Type -> Type -> Type
adamc@746 598 val sql_ufunc : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adam@1778 599 -> dom ::: Type -> ran ::: Type
adam@1778 600 -> sql_ufunc dom ran -> sql_exp tables agg exps dom
adam@1778 601 -> sql_exp tables agg exps ran
adamc@746 602 val sql_octet_length : sql_ufunc blob int
adamc@1207 603 val sql_known : t ::: Type -> sql_ufunc t bool
adam@1636 604 val sql_lower : sql_ufunc string string
adam@1636 605 val sql_upper : sql_ufunc string string
adamc@235 606
adam@1778 607 val sql_nullable : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type} -> t ::: Type
adamc@1081 608 -> sql_injectable_prim t
adam@1778 609 -> sql_exp tables agg exps t
adam@1778 610 -> sql_exp tables agg exps (option t)
adamc@1081 611
adam@1778 612 val sql_subquery : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type} -> nm ::: Name -> t ::: Type -> nt ::: Type
adam@1421 613 -> nullify t nt
adam@1394 614 -> sql_query tables agg [] [nm = t]
adam@1778 615 -> sql_exp tables agg exps nt
adam@1778 616
adam@1778 617 (** Window function expressions *)
adam@1778 618
adam@1778 619 con sql_partition :: {{Type}} -> {{Type}} -> {Type} -> Type
adam@1778 620 val sql_no_partition : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adam@1778 621 -> sql_partition tables agg exps
adam@1778 622 val sql_partition : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type} -> t ::: Type
adam@1778 623 -> sql_exp tables agg exps t
adam@1778 624 -> sql_partition tables agg exps
adam@1778 625
adam@1778 626 con sql_window_function :: {{Type}} -> {{Type}} -> {Type} -> Type -> Type
adam@1778 627 val sql_window_function : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adam@1778 628 -> t ::: Type
adam@1778 629 -> sql_window_function tables agg exps t
adam@1778 630 -> sql_partition tables agg exps
adam@1778 631 -> sql_order_by tables exps
adam@1778 632 -> sql_expw tables agg exps t
adam@1778 633
adam@1778 634 val sql_window_aggregate : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adam@1778 635 -> t ::: Type -> nt ::: Type
adam@1778 636 -> sql_aggregate t nt
adam@1778 637 -> sql_exp tables agg exps t
adam@1778 638 -> sql_window_function tables agg exps nt
adam@1778 639 val sql_window_count : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adam@1778 640 -> sql_window_function tables agg exps int
adam@1778 641 val sql_rank : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adam@1778 642 -> sql_window_function tables agg exps int
adam@1778 643
adamc@1191 644
adamc@243 645 (*** Executing queries *)
adamc@243 646
adamc@354 647 val query : tables ::: {{Type}} -> exps ::: {Type}
adamc@629 648 -> [tables ~ exps] =>
adamc@354 649 state ::: Type
adam@1394 650 -> sql_query [] [] tables exps
adamc@621 651 -> ($(exps ++ map (fn fields :: {Type} => $fields) tables)
adamc@354 652 -> state
adamc@354 653 -> transaction state)
adamc@354 654 -> state
adamc@354 655 -> transaction state
adamc@243 656
adam@1810 657 val show_sql_query : freeTables ::: {{Type}} -> freeAggs ::: {{Type}} -> tables ::: {{Type}} -> exps ::: {Type}
adam@1810 658 -> show (sql_query freeTables freeAggs tables exps)
adam@1810 659
adamc@243 660
adamc@299 661 (*** Database mutators *)
adamc@299 662
adamc@299 663 type dml
adamc@299 664 val dml : dml -> transaction unit
adam@1293 665 val tryDml : dml -> transaction (option string)
adam@1293 666 (* Returns an error message on failure. *)
adamc@299 667
adamc@705 668 val insert : fields ::: {Type} -> uniques ::: {{Unit}}
adamc@705 669 -> sql_table fields uniques
adam@1778 670 -> $(map (fn t :: Type => sql_exp [] [] [] t) fields)
adamc@354 671 -> dml
adamc@299 672
adamc@705 673 val update : unchanged ::: {Type} -> uniques ::: {{Unit}} -> changed :: {Type} ->
adamc@629 674 [changed ~ unchanged] =>
adam@1778 675 $(map (fn t :: Type => sql_exp [T = changed ++ unchanged] [] [] t) changed)
adamc@705 676 -> sql_table (changed ++ unchanged) uniques
adam@1778 677 -> sql_exp [T = changed ++ unchanged] [] [] bool
adamc@354 678 -> dml
adamc@299 679
adamc@705 680 val delete : fields ::: {Type} -> uniques ::: {{Unit}}
adamc@705 681 -> sql_table fields uniques
adam@1778 682 -> sql_exp [T = fields] [] [] bool
adamc@354 683 -> dml
adamc@299 684
adamc@338 685 (*** Sequences *)
adamc@338 686
adamc@338 687 type sql_sequence
adamc@338 688 val nextval : sql_sequence -> transaction int
adamc@1073 689 val setval : sql_sequence -> int -> transaction unit
adamc@338 690
adamc@299 691
adamc@203 692 (** XML *)
adamc@203 693
adamc@721 694 type css_class
adam@1477 695 val show_css_class : show css_class
adam@1567 696 val null : css_class
adam@1567 697 (* No special formatting *)
adam@1292 698 val classes : css_class -> css_class -> css_class
adam@1292 699 (* The equivalent of writing one class after the other, separated by a space, in
adam@1292 700 * an HTML 'class' attribute *)
adamc@718 701
adam@1750 702 type css_value
adam@1750 703 val atom : string -> css_value
adam@1750 704 type url
adam@1750 705 val css_url : url -> css_value
adam@2029 706 val sql_url : sql_injectable_prim url
adam@1750 707 type css_property
adam@1750 708 val property : string -> css_property
adam@1750 709 val value : css_property -> css_value -> css_property
adam@1750 710 type css_style
adam@1750 711 val noStyle : css_style
adam@1750 712 val oneProperty : css_style -> css_property -> css_style
adam@1750 713
adamc@720 714 con tag :: {Type} -> {Unit} -> {Unit} -> {Type} -> {Type} -> Type
adamc@91 715
adamc@720 716 con xml :: {Unit} -> {Type} -> {Type} -> Type
adamc@720 717 val cdata : ctx ::: {Unit} -> use ::: {Type} -> string -> xml ctx use []
adam@1358 718 val cdataChar : ctx ::: {Unit} -> use ::: {Type} -> char -> xml ctx use []
adamc@354 719 val tag : attrsGiven ::: {Type} -> attrsAbsent ::: {Type}
adamc@354 720 -> ctxOuter ::: {Unit} -> ctxInner ::: {Unit}
adamc@354 721 -> useOuter ::: {Type} -> useInner ::: {Type}
adamc@354 722 -> bindOuter ::: {Type} -> bindInner ::: {Type}
adamc@629 723 -> [attrsGiven ~ attrsAbsent] =>
adamc@629 724 [useOuter ~ useInner] =>
adamc@629 725 [bindOuter ~ bindInner] =>
adam@1749 726 css_class
adam@1643 727 -> option (signal css_class)
adam@1750 728 -> css_style
adam@1751 729 -> option (signal css_style)
adamc@721 730 -> $attrsGiven
adamc@629 731 -> tag (attrsGiven ++ attrsAbsent)
adamc@720 732 ctxOuter ctxInner useOuter bindOuter
adamc@720 733 -> xml ctxInner useInner bindInner
adamc@720 734 -> xml ctxOuter (useOuter ++ useInner) (bindOuter ++ bindInner)
adam@1682 735 val join : ctx ::: {Unit}
adamc@720 736 -> use1 ::: {Type} -> bind1 ::: {Type} -> bind2 ::: {Type}
adamc@720 737 -> [use1 ~ bind1] => [bind1 ~ bind2] =>
adamc@720 738 xml ctx use1 bind1
adamc@720 739 -> xml ctx (use1 ++ bind1) bind2
adamc@720 740 -> xml ctx use1 (bind1 ++ bind2)
adamc@354 741 val useMore : ctx ::: {Unit} -> use1 ::: {Type} -> use2 ::: {Type}
adamc@720 742 -> bind ::: {Type}
adamc@629 743 -> [use1 ~ use2] =>
adamc@720 744 xml ctx use1 bind
adamc@720 745 -> xml ctx (use1 ++ use2) bind
adamc@91 746
adam@1641 747 con html = [Html]
adam@1641 748 con head = [Head]
adam@1642 749
adam@1642 750 con body' = [MakeForm, Body]
adam@1642 751 con form' = [Body, Form]
adam@1642 752 con subform' = [Body, Subform]
adam@1642 753 con tabl' = [MakeForm, Table]
adam@1642 754 con tr' = [MakeForm, Tr]
adam@1642 755
adam@1642 756 con body = [Dyn] ++ body'
adam@1642 757 con form = [Dyn] ++ form'
adam@1642 758 con subform = [Dyn] ++ subform'
adam@1642 759 con tabl = [Dyn] ++ tabl'
adam@1642 760 con tr = [Dyn] ++ tr'
adam@1641 761
adam@1641 762 con xhtml = xml html
adamc@139 763 con page = xhtml [] []
adam@1641 764 con xbody = xml body [] []
grrwlf@1874 765 con xhead = xml head [] []
adam@1641 766 con xtable = xml tabl [] []
adam@1641 767 con xtr = xml tr [] []
adam@1641 768 con xform = xml form [] []
adamc@110 769
adamc@718 770
adamc@204 771 (*** HTML details *)
adamc@204 772
adam@1370 773 type queryString
adam@1370 774 val show_queryString : show queryString
adam@1370 775
adamc@1065 776 val show_url : show url
adamc@724 777 val bless : string -> url
adamc@770 778 val checkUrl : string -> option url
adamc@1085 779 val currentUrl : transaction url
adam@1386 780 val currentUrlHasPost : transaction bool
adam@1485 781 val currentUrlHasQueryString : transaction bool
adamc@1065 782 val url : transaction page -> url
adam@1370 783 val effectfulUrl : (option queryString -> transaction page) -> url
adamc@1065 784 val redirect : t ::: Type -> url -> transaction t
adamc@724 785
adam@1556 786 type id
adam@1556 787 val fresh : transaction id
adam@1785 788 val giveFocus : id -> transaction unit
grrwlf@1929 789 val show_id : show id
adam@1556 790
adam@1641 791 val dyn : ctx ::: {Unit} -> use ::: {Type} -> bind ::: {Type} -> [ctx ~ [Dyn]] => unit
adam@1641 792 -> tag [Signal = signal (xml ([Dyn] ++ ctx) use bind)] ([Dyn] ++ ctx) [] use bind
adamc@568 793
adam@1786 794 val active : unit
adam@1786 795 -> tag [Code = transaction xbody] body [] [] []
adam@1786 796
adam@1926 797 val script : unit
grrwlf@1925 798 -> tag [Code = transaction unit] head [] [] []
grrwlf@1924 799
adam@2047 800 (* Type for HTML5 "data-*" and "aria-*" attributes. *)
adam@2047 801 type data_attr_kind
adam@2047 802 val data_kind : data_attr_kind
adam@2047 803 val aria_kind : data_attr_kind
adam@2047 804
adam@2008 805 type data_attr
adam@2047 806 val data_attr : data_attr_kind -> string (* Key *) -> string (* Value *) -> data_attr
adam@2008 807 (* This function will fail if the key doesn't meet HTML's lexical rules! *)
adam@2008 808 val data_attrs : data_attr -> data_attr -> data_attr
adamc@110 809
adam@2008 810 val head : unit -> tag [Data = data_attr] html head [] []
adam@2008 811 val title : unit -> tag [Data = data_attr] head [] [] []
adam@2008 812 val link : unit -> tag [Data = data_attr, Id = id, Rel = string, Typ = string, Href = url, Media = string] head [] [] []
adam@2008 813
adam@2008 814 val body : unit -> tag [Data = data_attr, Onload = transaction unit, Onresize = transaction unit, Onunload = transaction unit, Onhashchange = transaction unit]
adamc@892 815 html body [] []
adamc@354 816 con bodyTag = fn (attrs :: {Type}) =>
adamc@354 817 ctx ::: {Unit} ->
adamc@629 818 [[Body] ~ ctx] =>
adamc@720 819 unit -> tag attrs ([Body] ++ ctx) ([Body] ++ ctx) [] []
adamc@354 820 con bodyTagStandalone = fn (attrs :: {Type}) =>
adamc@354 821 ctx ::: {Unit}
adamc@629 822 -> [[Body] ~ ctx] =>
adamc@720 823 unit -> tag attrs ([Body] ++ ctx) [] [] []
adamc@141 824
adam@2008 825 val br : bodyTagStandalone [Data = data_attr, Id = id]
adamc@119 826
adamc@892 827 con focusEvents = [Onblur = transaction unit, Onfocus = transaction unit]
adam@1783 828
adam@1783 829 datatype mouseButton = Left | Right | Middle
adam@1783 830
adam@1783 831 type mouseEvent = { ScreenX : int, ScreenY : int, ClientX : int, ClientY : int,
adam@1783 832 CtrlKey : bool, ShiftKey : bool, AltKey : bool, MetaKey : bool,
adam@1783 833 Button : mouseButton }
adam@1783 834
adam@1783 835 con mouseEvents = map (fn _ :: Unit => mouseEvent -> transaction unit)
ziv@2130 836 [Onclick, Oncontextmenu, Ondblclick, Onmousedown, Onmouseenter, Onmouseleave, Onmousemove, Onmouseout, Onmouseover, Onmouseup]
adam@1783 837
adam@1783 838 type keyEvent = { KeyCode : int,
adam@1783 839 CtrlKey : bool, ShiftKey : bool, AltKey : bool, MetaKey : bool }
adam@1783 840
adam@1783 841 con keyEvents = map (fn _ :: Unit => keyEvent -> transaction unit)
adam@1783 842 [Onkeydown, Onkeypress, Onkeyup]
adam@1783 843
adamc@895 844 (* Key arguments are character codes. *)
adamc@892 845 con resizeEvents = [Onresize = transaction unit]
vshabanoff@1709 846 con scrollEvents = [Onscroll = transaction unit]
adamc@691 847
vshabanoff@1709 848 con boxEvents = focusEvents ++ mouseEvents ++ keyEvents ++ resizeEvents ++ scrollEvents
adamc@892 849 con tableEvents = focusEvents ++ mouseEvents ++ keyEvents
adamc@140 850
grrwlf@2062 851 con boxAttrs = [Data = data_attr, Id = id, Title = string, Role = string] ++ boxEvents
adam@2008 852 con tableAttrs = [Data = data_attr, Id = id, Title = string] ++ tableEvents
adamc@469 853
adamc@1047 854 val span : bodyTag boxAttrs
adamc@1047 855 val div : bodyTag boxAttrs
adamc@140 856
adamc@1047 857 val p : bodyTag boxAttrs
grrwlf@1873 858 val strong : bodyTag boxAttrs
grrwlf@1873 859 val em : bodyTag boxAttrs
adamc@1047 860 val b : bodyTag boxAttrs
adamc@1047 861 val i : bodyTag boxAttrs
adamc@1047 862 val tt : bodyTag boxAttrs
kkallio@1452 863 val sub : bodyTag boxAttrs
kkallio@1452 864 val sup : bodyTag boxAttrs
adamc@410 865
adamc@1047 866 val h1 : bodyTag boxAttrs
adamc@1047 867 val h2 : bodyTag boxAttrs
adamc@1047 868 val h3 : bodyTag boxAttrs
adamc@1047 869 val h4 : bodyTag boxAttrs
adamc@1047 870 val h5 : bodyTag boxAttrs
adamc@1047 871 val h6 : bodyTag boxAttrs
adamc@717 872
adamc@1047 873 val li : bodyTag boxAttrs
adamc@1047 874 val ol : bodyTag boxAttrs
adamc@1047 875 val ul : bodyTag boxAttrs
adamc@140 876
adamc@1047 877 val hr : bodyTag boxAttrs
adamc@1047 878
grrwlf@1999 879 val pre : bodyTag boxAttrs
grrwlf@1999 880
david@2014 881 (** sections **)
david@2014 882 val section : bodyTag boxAttrs
david@2014 883 val article : bodyTag boxAttrs
david@2014 884 val nav : bodyTag boxAttrs
david@2014 885 val aside : bodyTag boxAttrs
david@2014 886 val footer : bodyTag boxAttrs
david@2014 887 val header : bodyTag boxAttrs
david@2014 888 val main : bodyTag boxAttrs
david@2014 889
david@2014 890 (** forms **)
david@2014 891 val meter : bodyTag boxAttrs
david@2014 892 val progress : bodyTag boxAttrs
david@2014 893 val output : bodyTag boxAttrs
david@2014 894 val keygen : bodyTag boxAttrs
david@2014 895 val datalist : bodyTag boxAttrs
david@2014 896
david@2014 897 (** Interactive Elements **)
david@2014 898 val details : bodyTag boxAttrs
david@2014 899 val dialog : bodyTag boxAttrs
david@2014 900 val menuitem : bodyTag boxAttrs
david@2014 901
david@2014 902 (** Grouping Content **)
david@2014 903 val figure : bodyTag boxAttrs
david@2014 904 val figcaption : bodyTag boxAttrs
david@2014 905
david@2014 906 (** Text Level Semantics **)
david@2014 907 val data : bodyTag boxAttrs
david@2014 908 val mark : bodyTag boxAttrs
david@2014 909 val rp : bodyTag boxAttrs
david@2014 910 val rt : bodyTag boxAttrs
david@2014 911 val ruby : bodyTag boxAttrs
david@2014 912 val summary : bodyTag boxAttrs
david@2014 913 val time : bodyTag boxAttrs
david@2014 914 val wbr : bodyTag boxAttrs
david@2014 915 val bdi : bodyTag boxAttrs
david@2014 916
grrwlf@2119 917 val a : bodyTag ([Link = transaction page, Href = url, Target = string, Rel = string, Download = string] ++ boxAttrs)
adamc@892 918
adam@1419 919 val img : bodyTag ([Alt = string, Src = url, Width = int, Height = int,
adamc@1129 920 Onabort = transaction unit, Onerror = transaction unit,
adamc@1047 921 Onload = transaction unit] ++ boxAttrs)
adam@1682 922
adamc@720 923 val form : ctx ::: {Unit} -> bind ::: {Type}
adam@1642 924 -> [[MakeForm, Form] ~ ctx] =>
adam@1412 925 option css_class
adam@1642 926 -> xml ([Form] ++ ctx) [] bind
adam@1642 927 -> xml ([MakeForm] ++ ctx) [] []
adam@1682 928
adamc@756 929 val subform : ctx ::: {Unit} -> use ::: {Type} -> bind ::: {Type}
adamc@756 930 -> [[Form] ~ ctx] =>
adamc@756 931 nm :: Name -> [[nm] ~ use] =>
adamc@1004 932 xml ([Form] ++ ctx) [] bind
adamc@756 933 -> xml ([Form] ++ ctx) use [nm = $bind]
adamc@758 934
adamc@758 935 val subforms : ctx ::: {Unit} -> use ::: {Type} -> bind ::: {Type}
adamc@1004 936 -> [[Form, Subform] ~ ctx] =>
adamc@758 937 nm :: Name -> [[nm] ~ use] =>
adamc@1004 938 xml ([Subform] ++ ctx) [Entry = $bind] []
adamc@758 939 -> xml ([Form] ++ ctx) use [nm = list ($bind)]
adamc@758 940
adamc@758 941 val entry : ctx ::: {Unit} -> bind ::: {Type}
adamc@1004 942 -> [[Subform, Form] ~ ctx] =>
adamc@1004 943 xml ([Form] ++ ctx) [] bind
adamc@758 944 -> xml ([Subform] ++ ctx) [Entry = $bind] []
adamc@758 945
adamc@361 946 con formTag = fn (ty :: Type) (inner :: {Unit}) (attrs :: {Type}) =>
adamc@354 947 ctx ::: {Unit}
adamc@629 948 -> [[Form] ~ ctx] =>
adamc@354 949 nm :: Name -> unit
adamc@720 950 -> tag attrs ([Form] ++ ctx) inner [] [nm = ty]
grrwlf@2074 951
adam@2075 952 con inputAttrs = [Required = bool, Autofocus = bool]
grrwlf@2074 953
grrwlf@2074 954
adam@2008 955 val hidden : formTag string [] [Data = data_attr, Id = string, Value = string]
vshabanoff@1709 956 val textbox : formTag string [] ([Value = string, Size = int, Placeholder = string, Source = source string, Onchange = transaction unit,
grrwlf@2074 957 Ontext = transaction unit] ++ boxAttrs ++ inputAttrs)
grrwlf@2074 958 val password : formTag string [] ([Value = string, Size = int, Placeholder = string, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs)
adamc@892 959 val textarea : formTag string [] ([Rows = int, Cols = int, Onchange = transaction unit,
grrwlf@2074 960 Ontext = transaction unit] ++ boxAttrs ++ inputAttrs)
adamc@153 961
adam@2076 962 val checkbox : formTag bool [] ([Checked = bool, Onchange = transaction unit] ++ boxAttrs)
adamc@190 963
adam@2077 964 (* HTML5 widgets galore! *)
adam@2077 965
adam@2077 966 type textWidget = formTag string [] ([Value = string, Size = int, Placeholder = string, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs)
adam@2077 967
adam@2077 968 val email : textWidget
adam@2077 969 val search : textWidget
adam@2077 970 val url_ : textWidget
adam@2077 971 val tel : textWidget
adam@2078 972 val color : textWidget
adam@2078 973
adam@2078 974 val number : formTag float [] ([Value = float, Min = float, Max = float, Step = float, Size = int, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs)
adam@2078 975 val range : formTag float [] ([Value = float, Min = float, Max = float, Size = int, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs)
adam@2078 976 val date : formTag string [] ([Value = string, Min = string, Max = string, Size = int, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs)
adam@2078 977 val datetime : formTag string [] ([Value = string, Min = string, Max = string, Size = int, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs)
adam@2078 978 val datetime_local : formTag string [] ([Value = string, Min = string, Max = string, Size = int, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs)
adam@2078 979 val month : formTag string [] ([Value = string, Min = string, Max = string, Size = int, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs)
adam@2078 980 val week : formTag string [] ([Value = string, Min = string, Max = string, Size = int, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs)
adam@2078 981 val timeInput : formTag string [] ([Value = string, Min = string, Max = string, Size = int, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs)
adam@2078 982
adam@2077 983
adam@2077 984
adamc@737 985 type file
adamc@737 986 val fileName : file -> option string
adamc@740 987 val fileMimeType : file -> string
adamc@737 988 val fileData : file -> blob
adamc@737 989
adamc@1047 990 val upload : formTag file [] ([Value = string, Size = int] ++ boxAttrs)
adamc@737 991
adamc@741 992 type mimeType
adamc@741 993 val blessMime : string -> mimeType
adamc@770 994 val checkMime : string -> option mimeType
adamc@741 995 val returnBlob : t ::: Type -> blob -> mimeType -> transaction t
adamc@745 996 val blobSize : blob -> int
adamc@1119 997 val textBlob : string -> blob
adamc@741 998
adam@1347 999 type postBody
adam@1347 1000 val postType : postBody -> string
adam@1347 1001 val postData : postBody -> string
adam@1347 1002
adam@1787 1003 type postField
adam@1787 1004 val firstFormField : string -> option postField
adam@1787 1005 val fieldName : postField -> string
adam@1787 1006 val fieldValue : postField -> string
adam@1787 1007 val remainingFields : postField -> string
adam@1787 1008
adamc@153 1009 con radio = [Body, Radio]
adam@2008 1010 val radio : formTag (option string) radio [Data = data_attr, Id = id]
adamc@1068 1011 val radioOption : unit -> tag ([Value = string, Checked = bool] ++ boxAttrs) radio [] [] []
adamc@142 1012
adamc@154 1013 con select = [Select]
adamc@1047 1014 val select : formTag string select ([Onchange = transaction unit] ++ boxAttrs)
adam@2008 1015 val option : unit -> tag [Data = data_attr, Value = string, Selected = bool] select [] [] []
adamc@154 1016
adamc@720 1017 val submit : ctx ::: {Unit} -> use ::: {Type}
adamc@629 1018 -> [[Form] ~ ctx] =>
adamc@354 1019 unit
adamc@1047 1020 -> tag ([Value = string, Action = $use -> transaction page] ++ boxAttrs)
adamc@720 1021 ([Form] ++ ctx) ([Form] ++ ctx) use []
adamc@283 1022
adam@1517 1023 val image : ctx ::: {Unit} -> use ::: {Type}
adam@1517 1024 -> [[Form] ~ ctx] =>
adam@1517 1025 unit
adam@1517 1026 -> tag ([Src = url, Width = int, Height = int, Alt = string, Action = $use -> transaction page] ++ boxAttrs)
adam@1517 1027 ([Form] ++ ctx) ([Form] ++ ctx) use []
adam@1517 1028
adam@1557 1029 val label : bodyTag ([For = id, Accesskey = string] ++ tableAttrs)
adamc@1047 1030
julian@2138 1031 val fieldset : bodyTag boxAttrs
julian@2138 1032 val legend : bodyTag boxAttrs
julian@2138 1033
adamc@1047 1034
adamc@601 1035 (*** AJAX-oriented widgets *)
adamc@601 1036
adamc@797 1037 con cformTag = fn (attrs :: {Type}) (inner :: {Unit}) =>
adamc@601 1038 ctx ::: {Unit}
grrwlf@2057 1039 -> [[Body] ~ ctx] => [[Body] ~ inner] =>
grrwlf@2057 1040 unit -> tag attrs ([Body] ++ ctx) ([Body] ++ inner) [] []
adamc@601 1041
adam@2079 1042 type ctext = cformTag ([Value = string, Size = int, Source = source string, Placeholder = string,
adam@2079 1043 Onchange = transaction unit, Ontext = transaction unit] ++ boxAttrs ++ inputAttrs) []
adam@2079 1044
adam@2079 1045 val ctextbox : ctext
adam@2079 1046 val cpassword : ctext
adam@2079 1047 val cemail : ctext
adam@2079 1048 val csearch : ctext
adam@2079 1049 val curl : ctext
adam@2079 1050 val ctel : ctext
adam@2079 1051 val ccolor : ctext
adam@2079 1052
adam@2080 1053 val cnumber : cformTag ([Source = source float, Value = float, Min = float, Max = float, Step = float, Size = int, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs) []
adam@2080 1054 val crange : cformTag ([Source = source float, Value = float, Min = float, Max = float, Size = int, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs) []
adam@2080 1055 val cdate : cformTag ([Source = source string, Value = string, Min = string, Max = string, Size = int, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs) []
adam@2080 1056 val cdatetime : cformTag ([Source = source string, Value = string, Min = string, Max = string, Size = int, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs) []
adam@2080 1057 val cdatetime_local : cformTag ([Source = source string, Value = string, Min = string, Max = string, Size = int, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs) []
adam@2080 1058 val cmonth : cformTag ([Source = source string, Value = string, Min = string, Max = string, Size = int, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs) []
adam@2080 1059 val cweek : cformTag ([Source = source string, Value = string, Min = string, Max = string, Size = int, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs) []
adam@2080 1060 val ctime : cformTag ([Source = source string, Value = string, Min = string, Max = string, Size = int, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs) []
adam@2080 1061
adamc@1047 1062 val button : cformTag ([Value = string] ++ boxAttrs) []
adamc@797 1063
grrwlf@2074 1064 val ccheckbox : cformTag ([Value = bool, Size = int, Source = source bool, Onchange = transaction unit] ++ boxAttrs ++ inputAttrs) []
adamc@817 1065
adam@2060 1066 val cselect : cformTag ([Source = source string, Onchange = transaction unit] ++ boxAttrs) [Cselect]
adam@2060 1067 val coption : unit -> tag [Value = string, Selected = bool] [Cselect, Body] [] [] []
adamc@601 1068
adamc@1099 1069 val ctextarea : cformTag ([Value = string, Rows = int, Cols = int, Source = source string, Onchange = transaction unit,
grrwlf@2074 1070 Ontext = transaction unit] ++ boxAttrs ++ inputAttrs) []
adamc@1099 1071
adamc@720 1072 (*** Tables *)
adamc@720 1073
adamc@892 1074 val tabl : other ::: {Unit} -> [other ~ [Body, Table]] => unit
adamc@1047 1075 -> tag ([Border = int] ++ boxAttrs)
adam@1641 1076 ([Body] ++ other) ([Table] ++ other) [] []
adam@1641 1077 val tr : other ::: {Unit} -> [other ~ [Table, Tr]] => unit
adamc@1047 1078 -> tag tableAttrs
adam@1641 1079 ([Table] ++ other) ([Tr] ++ other) [] []
adamc@892 1080 val th : other ::: {Unit} -> [other ~ [Body, Tr]] => unit
kkallio@1476 1081 -> tag ([Colspan = int, Rowspan = int] ++ tableAttrs)
adam@1641 1082 ([Tr] ++ other) ([Body] ++ other) [] []
adamc@892 1083 val td : other ::: {Unit} -> [other ~ [Body, Tr]] => unit
kkallio@1476 1084 -> tag ([Colspan = int, Rowspan = int] ++ tableAttrs)
adam@1641 1085 ([Tr] ++ other) ([Body] ++ other) [] []
adamc@720 1086
adam@2007 1087 val thead : other ::: {Unit} -> [other ~ [Table]] => unit
adam@2007 1088 -> tag tableAttrs
adam@2007 1089 ([Table] ++ other) ([Table] ++ other) [] []
adam@2007 1090 val tbody : other ::: {Unit} -> [other ~ [Table]] => unit
adam@2007 1091 -> tag tableAttrs
adam@2007 1092 ([Table] ++ other) ([Table] ++ other) [] []
adam@2007 1093 val tfoot : other ::: {Unit} -> [other ~ [Table]] => unit
adam@2007 1094 -> tag tableAttrs
adam@2007 1095 ([Table] ++ other) ([Table] ++ other) [] []
adam@2007 1096
grrwlf@1876 1097 (** Definition lists *)
grrwlf@1876 1098
grrwlf@1876 1099 val dl : other ::: {Unit} -> [other ~ [Body,Dl]]
grrwlf@1876 1100 => unit
adam@2008 1101 -> tag [Data = data_attr] ([Body] ++ other) ([Dl] ++ other) [] []
grrwlf@1876 1102
grrwlf@1876 1103 val dt : other ::: {Unit} -> [other ~ [Body,Dl]]
grrwlf@1876 1104 => unit
adam@2008 1105 -> tag [Data = data_attr] ([Dl] ++ other) ([Body] ++ other) [] []
grrwlf@1876 1106
grrwlf@1876 1107 val dd : other ::: {Unit} -> [other ~ [Body,Dl]]
grrwlf@1876 1108 => unit
adam@2008 1109 -> tag [Data = data_attr] ([Dl] ++ other) ([Body] ++ other) [] []
adam@2008 1110
adamc@283 1111
adamc@283 1112 (** Aborting *)
adamc@283 1113
adamc@726 1114 val error : t ::: Type -> xbody -> t
adamc@720 1115
adamc@729 1116 (* Client-side-only handlers: *)
adamc@726 1117 val onError : (xbody -> transaction unit) -> transaction unit
adamc@728 1118 val onFail : (string -> transaction unit) -> transaction unit
adamc@729 1119 val onConnectFail : transaction unit -> transaction unit
adamc@729 1120 val onDisconnect : transaction unit -> transaction unit
adamc@729 1121 val onServerError : (string -> transaction unit) -> transaction unit
adamc@727 1122
adam@1555 1123 (* More standard document-level JavaScript handlers *)
adam@1783 1124 val onClick : (mouseEvent -> transaction unit) -> transaction unit
adam@1783 1125 val onDblclick : (mouseEvent -> transaction unit) -> transaction unit
ziv@2130 1126 val onContextmenu : (mouseEvent -> transaction unit) -> transaction unit
adam@1783 1127 val onKeydown : (keyEvent -> transaction unit) -> transaction unit
adam@1783 1128 val onKeypress : (keyEvent -> transaction unit) -> transaction unit
adam@1783 1129 val onKeyup : (keyEvent -> transaction unit) -> transaction unit
adam@1783 1130 val onMousedown : (mouseEvent -> transaction unit) -> transaction unit
ziv@2130 1131 val onMouseenter : (mouseEvent -> transaction unit) -> transaction unit
ziv@2130 1132 val onMouseleave : (mouseEvent -> transaction unit) -> transaction unit
adam@1791 1133 val onMousemove : (mouseEvent -> transaction unit) -> transaction unit
adam@1791 1134 val onMouseout : (mouseEvent -> transaction unit) -> transaction unit
adam@1791 1135 val onMouseover : (mouseEvent -> transaction unit) -> transaction unit
adam@1783 1136 val onMouseup : (mouseEvent -> transaction unit) -> transaction unit
adam@1555 1137
adam@1559 1138 (* Prevents default handling of current event *)
adam@1559 1139 val preventDefault : transaction unit
adam@1559 1140 (* Stops propagation of current event *)
adam@1559 1141 val stopPropagation : transaction unit
adam@1559 1142
adamc@727 1143 val show_xml : ctx ::: {Unit} -> use ::: {Type} -> bind ::: {Type} -> show (xml ctx use bind)
adamc@1075 1144
adamc@1075 1145
adamc@1075 1146 (** Tasks *)
adamc@1075 1147
adam@1348 1148 con task_kind :: Type -> Type
adam@1348 1149 val initialize : task_kind unit
adam@1348 1150 val clientLeaves : task_kind client
adam@1349 1151 val periodic : int -> task_kind unit
adamc@1120 1152
adamc@1120 1153
adamc@1199 1154 (** Information flow security *)
adamc@1199 1155
adamc@1199 1156 type sql_policy
adamc@1199 1157
adamc@1214 1158 val sendClient : tables ::: {{Type}} -> exps ::: {Type}
adam@1394 1159 -> [tables ~ exps] => sql_query [] [] tables exps
adamc@1214 1160 -> sql_policy
adamc@1199 1161
adamc@1229 1162 val sendOwnIds : sql_sequence -> sql_policy
adamc@1229 1163
adamc@1220 1164 val mayInsert : fs ::: {Type} -> tables ::: {{Type}} -> [[New] ~ tables]
adam@1394 1165 => sql_query [] [] ([New = fs] ++ tables) []
adamc@1220 1166 -> sql_policy
adamc@1220 1167
adamc@1221 1168 val mayDelete : fs ::: {Type} -> tables ::: {{Type}} -> [[Old] ~ tables]
adam@1394 1169 => sql_query [] [] ([Old = fs] ++ tables) []
adamc@1221 1170 -> sql_policy
adamc@1221 1171
adamc@1223 1172 val mayUpdate : fs ::: {Type} -> tables ::: {{Type}} -> [[Old, New] ~ tables]
adam@1394 1173 => sql_query [] [] ([Old = fs, New = fs] ++ tables) []
adamc@1223 1174 -> sql_policy
adamc@1223 1175
adamc@1240 1176 val also : sql_policy -> sql_policy -> sql_policy
adamc@1199 1177
adamc@1120 1178 val debug : string -> transaction unit
adam@1389 1179 val naughtyDebug : string -> int
adamc@1250 1180
adamc@1250 1181 val rand : transaction int