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num_float
author Adam Chlipala <adamc@hcoop.net>
date Tue, 21 Oct 2008 10:40:22 -0400
parents acaf9d19fbb7
children fe8f75f7e130
rev   line source
adamc@56 1 type int
adamc@56 2 type float
adamc@56 3 type string
adamc@91 4
adamc@119 5 type unit = {}
adamc@119 6
adamc@186 7 datatype bool = False | True
adamc@186 8
adamc@288 9 datatype option t = None | Some of t
adamc@284 10
adamc@91 11
adamc@256 12 (** Basic type classes *)
adamc@256 13
adamc@256 14 class eq
adamc@256 15 val eq : t ::: Type -> eq t -> t -> t -> bool
adamc@257 16 val ne : t ::: Type -> eq t -> t -> t -> bool
adamc@256 17 val eq_int : eq int
adamc@256 18 val eq_string : eq string
adamc@256 19 val eq_bool : eq bool
adamc@256 20
adamc@389 21 class num
adamc@389 22 val neg : t ::: Type -> num t -> t -> t
adamc@389 23 val plus : t ::: Type -> num t -> t -> t -> t
adamc@389 24 val minus : t ::: Type -> num t -> t -> t -> t
adamc@389 25 val times : t ::: Type -> num t -> t -> t -> t
adamc@389 26 val div : t ::: Type -> num t -> t -> t -> t
adamc@389 27 val mod : t ::: Type -> num t -> t -> t -> t
adamc@389 28 val num_int : num int
adamc@390 29 val num_float : num float
adamc@389 30
adamc@256 31
adamc@283 32 (** String operations *)
adamc@283 33
adamc@283 34 val strcat : string -> string -> string
adamc@283 35
adamc@286 36 class show
adamc@286 37 val show : t ::: Type -> show t -> t -> string
adamc@286 38 val show_int : show int
adamc@286 39 val show_float : show float
adamc@286 40 val show_string : show string
adamc@286 41 val show_bool : show bool
adamc@286 42
adamc@290 43 class read
adamc@290 44 val read : t ::: Type -> read t -> string -> option t
adamc@292 45 val readError : t ::: Type -> read t -> string -> t
adamc@292 46 (* [readError] calls [error] if the input is malformed. *)
adamc@290 47 val read_int : read int
adamc@290 48 val read_float : read float
adamc@290 49 val read_string : read string
adamc@290 50 val read_bool : read bool
adamc@288 51
adamc@283 52
adamc@203 53 (** SQL *)
adamc@203 54
adamc@203 55 con sql_table :: {Type} -> Type
adamc@203 56
adamc@204 57 (*** Queries *)
adamc@204 58
adamc@233 59 con sql_query :: {{Type}} -> {Type} -> Type
adamc@233 60 con sql_query1 :: {{Type}} -> {{Type}} -> {Type} -> Type
adamc@234 61 con sql_exp :: {{Type}} -> {{Type}} -> {Type} -> Type -> Type
adamc@204 62
adamc@223 63 con sql_subset :: {{Type}} -> {{Type}} -> Type
adamc@223 64 val sql_subset : keep_drop :: {({Type} * {Type})}
adamc@354 65 -> sql_subset
adamc@354 66 (fold (fn nm (fields :: ({Type} * {Type}))
adamc@354 67 acc [[nm] ~ acc]
adamc@354 68 [fields.1 ~ fields.2] =>
adamc@354 69 [nm = fields.1 ++ fields.2]
adamc@354 70 ++ acc) [] keep_drop)
adamc@354 71 (fold (fn nm (fields :: ({Type} * {Type}))
adamc@354 72 acc [[nm] ~ acc] =>
adamc@354 73 [nm = fields.1] ++ acc)
adamc@354 74 [] keep_drop)
adamc@354 75 val sql_subset_all : tables :: {{Type}} -> sql_subset tables tables
adamc@223 76
adamc@229 77 val sql_query1 : tables ::: {{Type}}
adamc@354 78 -> grouped ::: {{Type}}
adamc@354 79 -> selectedFields ::: {{Type}}
adamc@354 80 -> selectedExps ::: {Type}
adamc@354 81 -> {From : $(fold (fn nm (fields :: {Type}) acc [[nm] ~ acc] =>
adamc@354 82 [nm = sql_table fields] ++ acc)
adamc@354 83 [] tables),
adamc@354 84 Where : sql_exp tables [] [] bool,
adamc@354 85 GroupBy : sql_subset tables grouped,
adamc@354 86 Having : sql_exp grouped tables [] bool,
adamc@354 87 SelectFields : sql_subset grouped selectedFields,
adamc@354 88 SelectExps : $(fold (fn nm (t :: Type) acc [[nm] ~ acc] =>
adamc@354 89 [nm = sql_exp grouped tables [] t]
adamc@354 90 ++ acc) [] selectedExps) }
adamc@354 91 -> sql_query1 tables selectedFields selectedExps
adamc@229 92
adamc@229 93 type sql_relop
adamc@229 94 val sql_union : sql_relop
adamc@229 95 val sql_intersect : sql_relop
adamc@229 96 val sql_except : sql_relop
adamc@260 97 val sql_relop : tables1 ::: {{Type}}
adamc@354 98 -> tables2 ::: {{Type}}
adamc@354 99 -> selectedFields ::: {{Type}}
adamc@354 100 -> selectedExps ::: {Type}
adamc@354 101 -> sql_relop
adamc@354 102 -> sql_query1 tables1 selectedFields selectedExps
adamc@354 103 -> sql_query1 tables2 selectedFields selectedExps
adamc@354 104 -> sql_query1 selectedFields selectedFields selectedExps
adamc@229 105
adamc@230 106 type sql_direction
adamc@230 107 val sql_asc : sql_direction
adamc@230 108 val sql_desc : sql_direction
adamc@230 109
adamc@234 110 con sql_order_by :: {{Type}} -> {Type} -> Type
adamc@234 111 val sql_order_by_Nil : tables ::: {{Type}} -> exps :: {Type} -> sql_order_by tables exps
adamc@234 112 val sql_order_by_Cons : tables ::: {{Type}} -> exps ::: {Type} -> t ::: Type
adamc@354 113 -> sql_exp tables [] exps t -> sql_direction
adamc@354 114 -> sql_order_by tables exps
adamc@354 115 -> sql_order_by tables exps
adamc@230 116
adamc@231 117 type sql_limit
adamc@231 118 val sql_no_limit : sql_limit
adamc@231 119 val sql_limit : int -> sql_limit
adamc@354 120
adamc@232 121 type sql_offset
adamc@232 122 val sql_no_offset : sql_offset
adamc@232 123 val sql_offset : int -> sql_offset
adamc@232 124
adamc@229 125 val sql_query : tables ::: {{Type}}
adamc@354 126 -> selectedFields ::: {{Type}}
adamc@354 127 -> selectedExps ::: {Type}
adamc@354 128 -> {Rows : sql_query1 tables selectedFields selectedExps,
adamc@354 129 OrderBy : sql_order_by tables selectedExps,
adamc@354 130 Limit : sql_limit,
adamc@354 131 Offset : sql_offset}
adamc@354 132 -> sql_query selectedFields selectedExps
adamc@204 133
adamc@354 134 val sql_field : otherTabs ::: {{Type}} -> otherFields ::: {Type}
adamc@354 135 -> fieldType ::: Type -> agg ::: {{Type}}
adamc@354 136 -> exps ::: {Type}
adamc@354 137 -> tab :: Name -> field :: Name
adamc@354 138 -> sql_exp
adamc@354 139 ([tab = [field = fieldType] ++ otherFields] ++ otherTabs)
adamc@354 140 agg exps fieldType
adamc@234 141
adamc@354 142 val sql_exp : tabs ::: {{Type}} -> agg ::: {{Type}} -> t ::: Type -> rest ::: {Type}
adamc@354 143 -> nm :: Name
adamc@354 144 -> sql_exp tabs agg ([nm = t] ++ rest) t
adamc@209 145
adamc@221 146 class sql_injectable
adamc@221 147 val sql_bool : sql_injectable bool
adamc@221 148 val sql_int : sql_injectable int
adamc@221 149 val sql_float : sql_injectable float
adamc@221 150 val sql_string : sql_injectable string
adamc@354 151 val sql_inject : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adamc@354 152 -> t ::: Type
adamc@354 153 -> sql_injectable t -> t -> sql_exp tables agg exps t
adamc@209 154
adamc@220 155 con sql_unary :: Type -> Type -> Type
adamc@220 156 val sql_not : sql_unary bool bool
adamc@354 157 val sql_unary : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adamc@354 158 -> arg ::: Type -> res ::: Type
adamc@354 159 -> sql_unary arg res -> sql_exp tables agg exps arg
adamc@354 160 -> sql_exp tables agg exps res
adamc@220 161
adamc@220 162 con sql_binary :: Type -> Type -> Type -> Type
adamc@220 163 val sql_and : sql_binary bool bool bool
adamc@220 164 val sql_or : sql_binary bool bool bool
adamc@234 165 val sql_binary : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adamc@354 166 -> arg1 ::: Type -> arg2 ::: Type -> res ::: Type
adamc@354 167 -> sql_binary arg1 arg2 res -> sql_exp tables agg exps arg1
adamc@354 168 -> sql_exp tables agg exps arg2
adamc@354 169 -> sql_exp tables agg exps res
adamc@220 170
adamc@219 171 type sql_comparison
adamc@219 172 val sql_eq : sql_comparison
adamc@219 173 val sql_ne : sql_comparison
adamc@219 174 val sql_lt : sql_comparison
adamc@219 175 val sql_le : sql_comparison
adamc@219 176 val sql_gt : sql_comparison
adamc@219 177 val sql_ge : sql_comparison
adamc@253 178 val sql_comparison : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adamc@236 179 -> t ::: Type
adamc@253 180 -> sql_comparison
adamc@234 181 -> sql_exp tables agg exps t -> sql_exp tables agg exps t
adamc@234 182 -> sql_exp tables agg exps bool
adamc@203 183
adamc@235 184 val sql_count : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adamc@354 185 -> unit -> sql_exp tables agg exps int
adamc@235 186
adamc@236 187 con sql_aggregate :: Type -> Type
adamc@354 188 val sql_aggregate : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adamc@354 189 -> t ::: Type
adamc@354 190 -> sql_aggregate t -> sql_exp agg agg exps t
adamc@354 191 -> sql_exp tables agg exps t
adamc@236 192
adamc@236 193 class sql_summable
adamc@236 194 val sql_summable_int : sql_summable int
adamc@236 195 val sql_summable_float : sql_summable float
adamc@236 196 val sql_avg : t ::: Type -> sql_summable t -> sql_aggregate t
adamc@236 197 val sql_sum : t ::: Type -> sql_summable t -> sql_aggregate t
adamc@236 198
adamc@236 199 class sql_maxable
adamc@236 200 val sql_maxable_int : sql_maxable int
adamc@236 201 val sql_maxable_float : sql_maxable float
adamc@236 202 val sql_maxable_string : sql_maxable string
adamc@236 203 val sql_max : t ::: Type -> sql_maxable t -> sql_aggregate t
adamc@236 204 val sql_min : t ::: Type -> sql_maxable t -> sql_aggregate t
adamc@236 205
adamc@235 206
adamc@243 207 (*** Executing queries *)
adamc@243 208
adamc@243 209 con transaction :: Type -> Type
adamc@243 210 val return : t ::: Type
adamc@354 211 -> t -> transaction t
adamc@243 212 val bind : t1 ::: Type -> t2 ::: Type
adamc@354 213 -> transaction t1 -> (t1 -> transaction t2)
adamc@354 214 -> transaction t2
adamc@243 215
adamc@354 216 val query : tables ::: {{Type}} -> exps ::: {Type}
adamc@354 217 -> fn [tables ~ exps] =>
adamc@354 218 state ::: Type
adamc@354 219 -> sql_query tables exps
adamc@356 220 -> ($(exps ++ fold (fn nm (fields :: {Type}) acc [[nm] ~ acc] =>
adamc@354 221 [nm = $fields] ++ acc) [] tables)
adamc@354 222 -> state
adamc@354 223 -> transaction state)
adamc@354 224 -> state
adamc@354 225 -> transaction state
adamc@243 226
adamc@243 227
adamc@299 228 (*** Database mutators *)
adamc@299 229
adamc@299 230 type dml
adamc@299 231 val dml : dml -> transaction unit
adamc@299 232
adamc@299 233 val insert : fields ::: {Type}
adamc@354 234 -> sql_table fields
adamc@354 235 -> $(fold (fn nm (t :: Type) acc [[nm] ~ acc] =>
adamc@354 236 [nm = sql_exp [] [] [] t] ++ acc)
adamc@354 237 [] fields)
adamc@354 238 -> dml
adamc@299 239
adamc@354 240 val update : changed :: {Type} -> unchanged ::: {Type} ->
adamc@354 241 fn [changed ~ unchanged] =>
adamc@354 242 $(fold (fn nm (t :: Type) acc [[nm] ~ acc] =>
adamc@354 243 [nm = sql_exp [T = changed ++ unchanged] [] [] t]
adamc@354 244 ++ acc)
adamc@354 245 [] changed)
adamc@354 246 -> sql_table (changed ++ unchanged)
adamc@354 247 -> sql_exp [T = changed ++ unchanged] [] [] bool
adamc@354 248 -> dml
adamc@299 249
adamc@299 250 val delete : fields ::: {Type}
adamc@354 251 -> sql_table fields
adamc@354 252 -> sql_exp [T = fields] [] [] bool
adamc@354 253 -> dml
adamc@299 254
adamc@338 255 (*** Sequences *)
adamc@338 256
adamc@338 257 type sql_sequence
adamc@338 258 val nextval : sql_sequence -> transaction int
adamc@338 259
adamc@299 260
adamc@203 261 (** XML *)
adamc@203 262
adamc@139 263 con tag :: {Type} -> {Unit} -> {Unit} -> {Type} -> {Type} -> Type
adamc@91 264
adamc@91 265
adamc@139 266 con xml :: {Unit} -> {Type} -> {Type} -> Type
adamc@141 267 val cdata : ctx ::: {Unit} -> use ::: {Type} -> string -> xml ctx use []
adamc@354 268 val tag : attrsGiven ::: {Type} -> attrsAbsent ::: {Type}
adamc@354 269 -> ctxOuter ::: {Unit} -> ctxInner ::: {Unit}
adamc@354 270 -> useOuter ::: {Type} -> useInner ::: {Type}
adamc@354 271 -> bindOuter ::: {Type} -> bindInner ::: {Type}
adamc@354 272 -> fn [attrsGiven ~ attrsAbsent]
adamc@354 273 [useOuter ~ useInner]
adamc@354 274 [bindOuter ~ bindInner] =>
adamc@354 275 $attrsGiven
adamc@354 276 -> tag (attrsGiven ++ attrsAbsent)
adamc@354 277 ctxOuter ctxInner useOuter bindOuter
adamc@354 278 -> xml ctxInner useInner bindInner
adamc@354 279 -> xml ctxOuter (useOuter ++ useInner) (bindOuter ++ bindInner)
adamc@140 280 val join : ctx ::: {Unit}
adamc@139 281 -> use1 ::: {Type} -> bind1 ::: {Type} -> bind2 ::: {Type}
adamc@354 282 -> fn [use1 ~ bind1] [bind1 ~ bind2] =>
adamc@354 283 xml ctx use1 bind1
adamc@354 284 -> xml ctx (use1 ++ bind1) bind2
adamc@354 285 -> xml ctx use1 (bind1 ++ bind2)
adamc@354 286 val useMore : ctx ::: {Unit} -> use1 ::: {Type} -> use2 ::: {Type}
adamc@354 287 -> bind ::: {Type}
adamc@354 288 -> fn [use1 ~ use2] =>
adamc@354 289 xml ctx use1 bind
adamc@354 290 -> xml ctx (use1 ++ use2) bind
adamc@91 291
adamc@110 292 con xhtml = xml [Html]
adamc@139 293 con page = xhtml [] []
adamc@325 294 con xbody = xml [Body] [] []
adamc@326 295 con xtr = xml [Body, Tr] [] []
adamc@361 296 con xform = xml [Body, Form] [] []
adamc@110 297
adamc@204 298 (*** HTML details *)
adamc@204 299
adamc@140 300 con html = [Html]
adamc@140 301 con head = [Head]
adamc@140 302 con body = [Body]
adamc@361 303 con form = [Body, Form]
adamc@332 304 con tabl = [Body, Table]
adamc@332 305 con tr = [Body, Tr]
adamc@93 306
adamc@140 307 val head : unit -> tag [] html head [] []
adamc@140 308 val title : unit -> tag [] head [] [] []
adamc@110 309
adamc@140 310 val body : unit -> tag [] html body [] []
adamc@354 311 con bodyTag = fn (attrs :: {Type}) =>
adamc@354 312 ctx ::: {Unit} ->
adamc@354 313 fn [[Body] ~ ctx] =>
adamc@354 314 unit -> tag attrs ([Body] ++ ctx) ([Body] ++ ctx) [] []
adamc@354 315 con bodyTagStandalone = fn (attrs :: {Type}) =>
adamc@354 316 ctx ::: {Unit}
adamc@354 317 -> fn [[Body] ~ ctx] =>
adamc@354 318 unit -> tag attrs ([Body] ++ ctx) [] [] []
adamc@141 319
adamc@141 320 val br : bodyTagStandalone []
adamc@119 321
adamc@140 322 val p : bodyTag []
adamc@140 323 val b : bodyTag []
adamc@140 324 val i : bodyTag []
adamc@140 325 val font : bodyTag [Size = int, Face = string]
adamc@140 326
adamc@140 327 val h1 : bodyTag []
adamc@140 328 val li : bodyTag []
adamc@140 329
adamc@280 330 val a : bodyTag [Link = transaction page]
adamc@140 331
adamc@361 332 val form : ctx ::: {Unit} -> bind ::: {Type}
adamc@354 333 -> fn [[Body] ~ ctx] =>
adamc@354 334 xml form [] bind
adamc@354 335 -> xml ([Body] ++ ctx) [] []
adamc@361 336 con formTag = fn (ty :: Type) (inner :: {Unit}) (attrs :: {Type}) =>
adamc@354 337 ctx ::: {Unit}
adamc@361 338 -> fn [[Form] ~ ctx] =>
adamc@354 339 nm :: Name -> unit
adamc@361 340 -> tag attrs ([Form] ++ ctx) inner [] [nm = ty]
adamc@361 341 val textbox : formTag string [] [Value = string]
adamc@361 342 val password : formTag string [] []
adamc@361 343 val textarea : formTag string [] []
adamc@153 344
adamc@361 345 val checkbox : formTag bool [] [Checked = bool]
adamc@190 346
adamc@153 347 con radio = [Body, Radio]
adamc@361 348 val radio : formTag string radio []
adamc@153 349 val radioOption : unit -> tag [Value = string] radio [] [] []
adamc@142 350
adamc@154 351 con select = [Select]
adamc@361 352 val select : formTag string select []
adamc@361 353 val option : unit -> tag [Value = string] select [] [] []
adamc@154 354
adamc@354 355 val submit : ctx ::: {Unit} -> use ::: {Type}
adamc@361 356 -> fn [[Form] ~ ctx] =>
adamc@354 357 unit
adamc@354 358 -> tag [Action = $use -> transaction page]
adamc@361 359 ([Form] ++ ctx) ([Form] ++ ctx) use []
adamc@283 360
adamc@325 361 (*** Tables *)
adamc@325 362
adamc@325 363 val tabl : unit -> tag [Border = int] [Body] [Body, Table] [] []
adamc@325 364 val tr : unit -> tag [] [Body, Table] [Body, Tr] [] []
adamc@325 365 val th : unit -> tag [] [Body, Tr] [Body] [] []
adamc@325 366 val td : unit -> tag [] [Body, Tr] [Body] [] []
adamc@325 367
adamc@283 368
adamc@283 369 (** Aborting *)
adamc@283 370
adamc@283 371 val error : t ::: Type -> xml [Body] [] [] -> t