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Deletion for Crud
author Adam Chlipala <adamc@hcoop.net>
date Sat, 13 Sep 2008 20:15:30 -0400
parents 34847732cefc
children 075b36dbb1a4
rev   line source
adamc@329 1 con idT = fn t :: Type => t
adamc@329 2 con record = fn t :: {Type} => $t
adamc@329 3
adamc@325 4 con mapTT = fn f :: Type -> Type => fold (fn nm t acc => [nm] ~ acc =>
adamc@325 5 [nm = f t] ++ acc) []
adamc@325 6
adamc@325 7 val compose : t1 ::: Type -> t2 ::: Type -> t3 ::: Type
adamc@325 8 -> (t2 -> t3) -> (t1 -> t2) -> (t1 -> t3)
adamc@325 9
adamc@325 10 val txt : t ::: Type -> ctx ::: {Unit} -> use ::: {Type} -> show t -> t
adamc@325 11 -> xml ctx use []
adamc@329 12
adamc@336 13 val foldTR : tf :: (Type -> Type) -> tr :: ({Type} -> Type)
adamc@336 14 -> (nm :: Name -> t :: Type -> rest :: {Type} -> [nm] ~ rest
adamc@336 15 -> tf t -> tr rest -> tr ([nm = t] ++ rest))
adamc@336 16 -> tr [] -> r :: {Type} -> $(mapTT tf r) -> tr r
adamc@336 17
adamc@329 18 val foldTR2 : tf1 :: (Type -> Type) -> tf2 :: (Type -> Type) -> tr :: ({Type} -> Type)
adamc@329 19 -> (nm :: Name -> t :: Type -> rest :: {Type} -> [nm] ~ rest
adamc@329 20 -> tf1 t -> tf2 t -> tr rest -> tr ([nm = t] ++ rest))
adamc@329 21 -> tr [] -> r :: {Type} -> $(mapTT tf1 r) -> $(mapTT tf2 r) -> tr r
adamc@332 22
adamc@336 23 val foldTRX : tf :: (Type -> Type) -> ctx :: {Unit}
adamc@336 24 -> (nm :: Name -> t :: Type -> rest :: {Type} -> [nm] ~ rest
adamc@336 25 -> tf t -> xml ctx [] [])
adamc@336 26 -> r :: {Type} -> $(mapTT tf r) -> xml ctx [] []
adamc@336 27
adamc@332 28 val foldTRX2 : tf1 :: (Type -> Type) -> tf2 :: (Type -> Type) -> ctx :: {Unit}
adamc@332 29 -> (nm :: Name -> t :: Type -> rest :: {Type} -> [nm] ~ rest
adamc@332 30 -> tf1 t -> tf2 t -> xml ctx [] [])
adamc@332 31 -> r :: {Type} -> $(mapTT tf1 r) -> $(mapTT tf2 r) -> xml ctx [] []
adamc@334 32
adamc@334 33 val queryX : tables ::: {{Type}} -> exps ::: {Type} -> ctx ::: {Unit}
adamc@334 34 -> sql_query tables exps -> tables ~ exps
adamc@334 35 -> ($(exps ++ fold (fn nm (fields :: {Type}) acc => [nm] ~ acc => [nm = $fields] ++ acc) [] tables)
adamc@334 36 -> xml ctx [] [])
adamc@334 37 -> transaction (xml ctx [] [])