adamc@56: type int
adamc@56: type float
adamc@56: type string
adamc@91: 
adamc@119: type unit = {}
adamc@119: 
adamc@186: datatype bool = False | True
adamc@186: 
adamc@288: datatype option t = None | Some of t
adamc@284: 
adamc@91: 
adamc@256: (** Basic type classes *)
adamc@256: 
adamc@256: class eq
adamc@256: val eq : t ::: Type -> eq t -> t -> t -> bool
adamc@257: val ne : t ::: Type -> eq t -> t -> t -> bool
adamc@256: val eq_int : eq int
adamc@256: val eq_string : eq string
adamc@256: val eq_bool : eq bool
adamc@256: 
adamc@256: 
adamc@283: (** String operations *)
adamc@283: 
adamc@283: val strcat : string -> string -> string
adamc@283: 
adamc@286: class show
adamc@286: val show : t ::: Type -> show t -> t -> string
adamc@286: val show_int : show int
adamc@286: val show_float : show float
adamc@286: val show_string : show string
adamc@286: val show_bool : show bool
adamc@286: 
adamc@290: class read
adamc@290: val read : t ::: Type -> read t -> string -> option t
adamc@292: val readError : t ::: Type -> read t -> string -> t
adamc@292: (* [readError] calls [error] if the input is malformed. *)
adamc@290: val read_int : read int
adamc@290: val read_float : read float
adamc@290: val read_string : read string
adamc@290: val read_bool : read bool
adamc@288: 
adamc@283: 
adamc@203: (** SQL *)
adamc@203: 
adamc@203: con sql_table :: {Type} -> Type
adamc@203: 
adamc@204: (*** Queries *)
adamc@204: 
adamc@233: con sql_query :: {{Type}} -> {Type} -> Type
adamc@233: con sql_query1 :: {{Type}} -> {{Type}} -> {Type} -> Type
adamc@234: con sql_exp :: {{Type}} -> {{Type}} -> {Type} -> Type -> Type
adamc@204: 
adamc@223: con sql_subset :: {{Type}} -> {{Type}} -> Type
adamc@223: val sql_subset : keep_drop :: {({Type} * {Type})}
adamc@223:         -> sql_subset
adamc@223:                 (fold (fn nm => fn fields :: ({Type} * {Type}) => fn acc =>
adamc@223:                         [nm] ~ acc => fields.1 ~ fields.2 =>
adamc@223:                         [nm = fields.1 ++ fields.2] ++ acc) [] keep_drop)
adamc@223:                 (fold (fn nm => fn fields :: ({Type} * {Type}) => fn acc =>
adamc@223:                         [nm] ~ acc =>
adamc@223:                         [nm = fields.1] ++ acc) [] keep_drop)
adamc@223: val sql_subset_all : tables :: {{Type}}
adamc@223:         -> sql_subset tables tables
adamc@223: 
adamc@229: val sql_query1 : tables ::: {{Type}}
adamc@224:         -> grouped ::: {{Type}}
adamc@233:         -> selectedFields ::: {{Type}}
adamc@233:         -> selectedExps ::: {Type}
adamc@223:         -> {From : $(fold (fn nm => fn fields :: {Type} => fn acc =>
adamc@223:                 [nm] ~ acc => [nm = sql_table fields] ++ acc) [] tables),
adamc@234:             Where : sql_exp tables [] [] bool,
adamc@224:             GroupBy : sql_subset tables grouped,
adamc@234:             Having : sql_exp grouped tables [] bool,
adamc@233:             SelectFields : sql_subset grouped selectedFields,
adamc@233:             SelectExps : $(fold (fn nm => fn t :: Type => fn acc =>
adamc@234:                 [nm] ~ acc => [nm = sql_exp grouped tables [] t] ++ acc) [] selectedExps) }
adamc@233:         -> sql_query1 tables selectedFields selectedExps
adamc@229: 
adamc@229: type sql_relop 
adamc@229: val sql_union : sql_relop
adamc@229: val sql_intersect : sql_relop
adamc@229: val sql_except : sql_relop
adamc@260: val sql_relop : tables1 ::: {{Type}}
adamc@229:         -> tables2 ::: {{Type}}
adamc@233:         -> selectedFields ::: {{Type}}
adamc@233:         -> selectedExps ::: {Type}
adamc@260:         -> sql_relop
adamc@233:         -> sql_query1 tables1 selectedFields selectedExps
adamc@233:         -> sql_query1 tables2 selectedFields selectedExps
adamc@233:         -> sql_query1 selectedFields selectedFields selectedExps
adamc@229: 
adamc@230: type sql_direction
adamc@230: val sql_asc : sql_direction
adamc@230: val sql_desc : sql_direction
adamc@230: 
adamc@234: con sql_order_by :: {{Type}} -> {Type} -> Type
adamc@234: val sql_order_by_Nil : tables ::: {{Type}} -> exps :: {Type} -> sql_order_by tables exps
adamc@234: val sql_order_by_Cons : tables ::: {{Type}} -> exps ::: {Type} -> t ::: Type
adamc@268:         -> sql_exp tables [] exps t -> sql_direction -> sql_order_by tables exps
adamc@234:         -> sql_order_by tables exps
adamc@230: 
adamc@231: type sql_limit
adamc@231: val sql_no_limit : sql_limit
adamc@231: val sql_limit : int -> sql_limit
adamc@231: 
adamc@232: type sql_offset
adamc@232: val sql_no_offset : sql_offset
adamc@232: val sql_offset : int -> sql_offset
adamc@232: 
adamc@229: val sql_query : tables ::: {{Type}}
adamc@233:         -> selectedFields ::: {{Type}}
adamc@233:         -> selectedExps ::: {Type}
adamc@233:         -> {Rows : sql_query1 tables selectedFields selectedExps,
adamc@234:             OrderBy : sql_order_by tables selectedExps,
adamc@232:             Limit : sql_limit,
adamc@232:             Offset : sql_offset}
adamc@233:         -> sql_query selectedFields selectedExps
adamc@204: 
adamc@225: val sql_field : otherTabs ::: {{Type}} -> otherFields ::: {Type} -> fieldType ::: Type -> agg ::: {{Type}}
adamc@234:         -> exps ::: {Type}
adamc@221:         -> tab :: Name -> field :: Name
adamc@234:         -> sql_exp ([tab = [field = fieldType] ++ otherFields] ++ otherTabs) agg exps fieldType
adamc@234: 
adamc@234: val sql_exp : tabs ::: {{Type}} -> agg ::: {{Type}} -> t ::: Type -> rest ::: {Type} -> nm :: Name
adamc@234:         -> sql_exp tabs agg ([nm = t] ++ rest) t
adamc@209: 
adamc@221: class sql_injectable
adamc@221: val sql_bool : sql_injectable bool
adamc@221: val sql_int : sql_injectable int
adamc@221: val sql_float : sql_injectable float
adamc@221: val sql_string : sql_injectable string
adamc@234: val sql_inject : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type} -> t ::: Type
adamc@234:         -> sql_injectable t -> t -> sql_exp tables agg exps t
adamc@209: 
adamc@220: con sql_unary :: Type -> Type -> Type
adamc@220: val sql_not : sql_unary bool bool
adamc@234: val sql_unary : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type} -> arg ::: Type -> res ::: Type
adamc@234:         -> sql_unary arg res -> sql_exp tables agg exps arg -> sql_exp tables agg exps res
adamc@220: 
adamc@220: con sql_binary :: Type -> Type -> Type -> Type
adamc@220: val sql_and : sql_binary bool bool bool
adamc@220: val sql_or : sql_binary bool bool bool
adamc@234: val sql_binary : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adamc@234:         -> arg1 ::: Type -> arg2 ::: Type -> res ::: Type
adamc@234:         -> sql_binary arg1 arg2 res -> sql_exp tables agg exps arg1 -> sql_exp tables agg exps arg2
adamc@234:         -> sql_exp tables agg exps res
adamc@220: 
adamc@219: type sql_comparison
adamc@219: val sql_eq : sql_comparison
adamc@219: val sql_ne : sql_comparison
adamc@219: val sql_lt : sql_comparison
adamc@219: val sql_le : sql_comparison
adamc@219: val sql_gt : sql_comparison
adamc@219: val sql_ge : sql_comparison
adamc@253: val sql_comparison : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adamc@236:         -> t ::: Type
adamc@253:         -> sql_comparison
adamc@234:         -> sql_exp tables agg exps t -> sql_exp tables agg exps t
adamc@234:         -> sql_exp tables agg exps bool
adamc@203: 
adamc@235: val sql_count : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type}
adamc@235:         -> unit -> sql_exp tables agg exps int
adamc@235: 
adamc@236: con sql_aggregate :: Type -> Type
adamc@236: val sql_aggregate : tables ::: {{Type}} -> agg ::: {{Type}} -> exps ::: {Type} -> t ::: Type
adamc@236:         -> sql_aggregate t -> sql_exp agg agg exps t -> sql_exp tables agg exps t
adamc@236: 
adamc@236: class sql_summable
adamc@236: val sql_summable_int : sql_summable int
adamc@236: val sql_summable_float : sql_summable float
adamc@236: val sql_avg : t ::: Type -> sql_summable t -> sql_aggregate t
adamc@236: val sql_sum : t ::: Type -> sql_summable t -> sql_aggregate t
adamc@236: 
adamc@236: class sql_maxable
adamc@236: val sql_maxable_int : sql_maxable int
adamc@236: val sql_maxable_float : sql_maxable float
adamc@236: val sql_maxable_string : sql_maxable string
adamc@236: val sql_max : t ::: Type -> sql_maxable t -> sql_aggregate t
adamc@236: val sql_min : t ::: Type -> sql_maxable t -> sql_aggregate t
adamc@236: 
adamc@235: 
adamc@243: (*** Executing queries *)
adamc@243: 
adamc@243: con transaction :: Type -> Type
adamc@243: val return : t ::: Type
adamc@243:         -> t -> transaction t
adamc@243: val bind : t1 ::: Type -> t2 ::: Type
adamc@243:         -> transaction t1 -> (t1 -> transaction t2)
adamc@243:         -> transaction t2
adamc@243: 
adamc@251: val query : tables ::: {{Type}} -> exps ::: {Type} -> tables ~ exps
adamc@252:         -> state ::: Type
adamc@243:         -> sql_query tables exps
adamc@251:         -> ($(exps ++ fold (fn nm (fields :: {Type}) acc => [nm] ~ acc => [nm = $fields] ++ acc) [] tables)
adamc@243:                 -> state
adamc@243:                 -> transaction state)
adamc@243:         -> state
adamc@243:         -> transaction state
adamc@243: 
adamc@243: 
adamc@299: (*** Database mutators *)
adamc@299: 
adamc@299: type dml
adamc@299: val dml : dml -> transaction unit
adamc@299: 
adamc@299: val insert : fields ::: {Type}
adamc@299:         -> sql_table fields
adamc@302:         -> $(fold (fn nm (t :: Type) acc => [nm] ~ acc =>
adamc@306:                 [nm = sql_exp [T = fields] [] [] t] ++ acc) [] fields)
adamc@299:         -> dml
adamc@299: 
adamc@306: val update : changed ::: {Type} -> unchanged ::: {Type} -> changed ~ unchanged
adamc@306:         -> $(fold (fn nm (t :: Type) acc => [nm] ~ acc =>
adamc@306:                 [nm = sql_exp [T = changed ++ unchanged] [] [] t] ++ acc) [] changed)
adamc@305:         -> sql_table (changed ++ unchanged)
adamc@306:         -> sql_exp [T = changed ++ unchanged] [] [] bool
adamc@299:         -> dml
adamc@299: 
adamc@299: val delete : fields ::: {Type}
adamc@299:         -> sql_table fields
adamc@306:         -> sql_exp [T = fields] [] [] bool
adamc@299:         -> dml
adamc@299: 
adamc@338: (*** Sequences *)
adamc@338: 
adamc@338: type sql_sequence
adamc@338: val nextval : sql_sequence -> transaction int
adamc@338: 
adamc@299: 
adamc@203: (** XML *)
adamc@203: 
adamc@139: con tag :: {Type} -> {Unit} -> {Unit} -> {Type} -> {Type} -> Type
adamc@91: 
adamc@91: 
adamc@139: con xml :: {Unit} -> {Type} -> {Type} -> Type
adamc@141: val cdata : ctx ::: {Unit} -> use ::: {Type} -> string -> xml ctx use []
adamc@104: val tag : attrsGiven ::: {Type} -> attrsAbsent ::: {Type} -> attrsGiven ~ attrsAbsent
adamc@139:         -> ctxOuter ::: {Unit} -> ctxInner ::: {Unit}
adamc@139:         -> useOuter ::: {Type} -> useInner ::: {Type} -> useOuter ~ useInner
adamc@139:         -> bindOuter ::: {Type} -> bindInner ::: {Type} -> bindOuter ~ bindInner
adamc@104:         -> $attrsGiven
adamc@139:         -> tag (attrsGiven ++ attrsAbsent) ctxOuter ctxInner useOuter bindOuter
adamc@139:         -> xml ctxInner useInner bindInner
adamc@139:         -> xml ctxOuter (useOuter ++ useInner) (bindOuter ++ bindInner)
adamc@140: val join : ctx ::: {Unit} 
adamc@139:         -> use1 ::: {Type} -> bind1 ::: {Type} -> bind2 ::: {Type}
adamc@139:         -> use1 ~ bind1 -> bind1 ~ bind2
adamc@140:         -> xml ctx use1 bind1
adamc@140:         -> xml ctx (use1 ++ bind1) bind2
adamc@140:         -> xml ctx use1 (bind1 ++ bind2)
adamc@148: val useMore : ctx ::: {Unit} -> use1 ::: {Type} -> use2 ::: {Type} -> bind ::: {Type}
adamc@148:         -> use1 ~ use2
adamc@148:         -> xml ctx use1 bind
adamc@148:         -> xml ctx (use1 ++ use2) bind
adamc@91: 
adamc@110: con xhtml = xml [Html]
adamc@139: con page = xhtml [] []
adamc@325: con xbody = xml [Body] [] []
adamc@326: con xtr = xml [Body, Tr] [] []
adamc@110: 
adamc@204: (*** HTML details *)
adamc@204: 
adamc@140: con html = [Html]
adamc@140: con head = [Head]
adamc@140: con body = [Body]
adamc@141: con lform = [Body, LForm]
adamc@332: con tabl = [Body, Table]
adamc@332: con tr = [Body, Tr]
adamc@93: 
adamc@140: val head : unit -> tag [] html head [] []
adamc@140: val title : unit -> tag [] head [] [] []
adamc@110: 
adamc@140: val body : unit -> tag [] html body [] []
adamc@140: con bodyTag = fn attrs :: {Type} => ctx ::: {Unit} -> [Body] ~ ctx -> unit
adamc@140:         -> tag attrs ([Body] ++ ctx) ([Body] ++ ctx) [] []
adamc@141: con bodyTagStandalone = fn attrs :: {Type} => ctx ::: {Unit} -> [Body] ~ ctx -> unit
adamc@141:         -> tag attrs ([Body] ++ ctx) [] [] []
adamc@141: 
adamc@141: val br : bodyTagStandalone []
adamc@119: 
adamc@140: val p : bodyTag []
adamc@140: val b : bodyTag []
adamc@140: val i : bodyTag []
adamc@140: val font : bodyTag [Size = int, Face = string]
adamc@140: 
adamc@140: val h1 : bodyTag []
adamc@140: val li : bodyTag []
adamc@140: 
adamc@280: val a : bodyTag [Link = transaction page]
adamc@140: 
adamc@141: val lform : ctx ::: {Unit} -> [Body] ~ ctx -> bind ::: {Type}
adamc@141:         -> xml lform [] bind
adamc@141:         -> xml ([Body] ++ ctx) [] []
adamc@153: con lformTag = fn ty :: Type => fn inner :: {Unit} => fn attrs :: {Type} =>
adamc@141:         ctx ::: {Unit} -> [LForm] ~ ctx
adamc@141:         -> nm :: Name -> unit
adamc@153:         -> tag attrs ([LForm] ++ ctx) inner [] [nm = ty]
adamc@153: val textbox : lformTag string [] []
adamc@155: val password : lformTag string [] []
adamc@153: val ltextarea : lformTag string [] []
adamc@153: 
adamc@190: val checkbox : lformTag bool [] []
adamc@190: 
adamc@153: con radio = [Body, Radio]
adamc@153: val radio : lformTag string radio []
adamc@153: val radioOption : unit -> tag [Value = string] radio [] [] []
adamc@142: 
adamc@154: con select = [Select]
adamc@154: val lselect : lformTag string select []
adamc@154: val loption : unit -> tag [Value = string] select [] [] []
adamc@154: 
adamc@142: val submit : ctx ::: {Unit} -> [LForm] ~ ctx
adamc@142:         -> use ::: {Type} -> unit
adamc@280:         -> tag [Action = $use -> transaction page] ([LForm] ++ ctx) ([LForm] ++ ctx) use []
adamc@283: 
adamc@325: (*** Tables *)
adamc@325: 
adamc@325: val tabl : unit -> tag [Border = int] [Body] [Body, Table] [] []
adamc@325: val tr : unit -> tag [] [Body, Table] [Body, Tr] [] []
adamc@325: val th : unit -> tag [] [Body, Tr] [Body] [] []
adamc@325: val td : unit -> tag [] [Body, Tr] [Body] [] []
adamc@325: 
adamc@283: 
adamc@283: (** Aborting *)
adamc@283: 
adamc@283: val error : t ::: Type -> xml [Body] [] [] -> t