Mercurial > urweb

annotate lib/top.ur @ 436:024478c34f4d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
time type
author Adam Chlipala <adamc@hcoop.net>
date Thu, 30 Oct 2008 14:36:48 -0400
parents 0ce90d4d9ae7
children 19d7f79cd584
rev   line source
adamc@422 1 fun not b = if b then False else True
adamc@422 2
adamc@356 3 con idT (t :: Type) = t
adamc@356 4 con record (t :: {Type}) = $t
adamc@356 5 con fstTT (t :: (Type * Type)) = t.1
adamc@356 6 con sndTT (t :: (Type * Type)) = t.2
adamc@329 7
adamc@356 8 con mapTT (f :: Type -> Type) = fold (fn nm t acc [[nm] ~ acc] =>
adamc@356 9 [nm = f t] ++ acc) []
adamc@325 10
adamc@411 11 con mapUT = fn f :: Type => fold (fn nm t acc [[nm] ~ acc] =>
adamc@411 12 [nm = f] ++ acc) []
adamc@411 13
adamc@356 14 con mapT2T (f :: (Type * Type) -> Type) = fold (fn nm t acc [[nm] ~ acc] =>
adamc@356 15 [nm = f t] ++ acc) []
adamc@339 16
adamc@339 17 con ex = fn tf :: (Type -> Type) =>
adamc@356 18 res ::: Type -> (choice :: Type -> tf choice -> res) -> res
adamc@339 19
adamc@339 20 fun ex (tf :: (Type -> Type)) (choice :: Type) (body : tf choice) : ex tf =
adamc@356 21 fn (res ::: Type) (f : choice :: Type -> tf choice -> res) =>
adamc@356 22 f [choice] body
adamc@339 23
adamc@356 24 fun compose (t1 ::: Type) (t2 ::: Type) (t3 ::: Type)
adamc@356 25 (f1 : t2 -> t3) (f2 : t1 -> t2) (x : t1) = f1 (f2 x)
adamc@325 26
adamc@356 27 fun txt (t ::: Type) (ctx ::: {Unit}) (use ::: {Type}) (sh : show t) (v : t) =
adamc@403 28 cdata (@show sh v)
adamc@328 29
adamc@411 30 fun foldUR (tf :: Type) (tr :: {Unit} -> Type)
adamc@411 31 (f : nm :: Name -> rest :: {Unit}
adamc@411 32 -> fn [[nm] ~ rest] =>
adamc@411 33 tf -> tr rest -> tr ([nm] ++ rest))
adamc@411 34 (i : tr []) =
adamc@411 35 fold [fn r :: {Unit} => $(mapUT tf r) -> tr r]
adamc@412 36 (fn (nm :: Name) (t :: Unit) (rest :: {Unit}) acc
adamc@412 37 [[nm] ~ rest] r =>
adamc@411 38 f [nm] [rest] r.nm (acc (r -- nm)))
adamc@411 39 (fn _ => i)
adamc@411 40
adamc@418 41 fun foldUR2 (tf1 :: Type) (tf2 :: Type) (tr :: {Unit} -> Type)
adamc@418 42 (f : nm :: Name -> rest :: {Unit}
adamc@418 43 -> fn [[nm] ~ rest] =>
adamc@418 44 tf1 -> tf2 -> tr rest -> tr ([nm] ++ rest))
adamc@418 45 (i : tr []) =
adamc@418 46 fold [fn r :: {Unit} => $(mapUT tf1 r) -> $(mapUT tf2 r) -> tr r]
adamc@418 47 (fn (nm :: Name) (t :: Unit) (rest :: {Unit}) acc
adamc@418 48 [[nm] ~ rest] r1 r2 =>
adamc@418 49 f [nm] [rest] r1.nm r2.nm (acc (r1 -- nm) (r2 -- nm)))
adamc@418 50 (fn _ _ => i)
adamc@418 51
adamc@418 52 fun foldURX2 (tf1 :: Type) (tf2 :: Type) (ctx :: {Unit})
adamc@418 53 (f : nm :: Name -> rest :: {Unit}
adamc@418 54 -> fn [[nm] ~ rest] =>
adamc@418 55 tf1 -> tf2 -> xml ctx [] []) =
adamc@418 56 foldUR2 [tf1] [tf2] [fn _ => xml ctx [] []]
adamc@418 57 (fn (nm :: Name) (rest :: {Unit}) [[nm] ~ rest] v1 v2 acc =>
adamc@418 58 <xml>{f [nm] [rest] v1 v2}{acc}</xml>)
adamc@418 59 <xml/>
adamc@418 60
adamc@336 61 fun foldTR (tf :: Type -> Type) (tr :: {Type} -> Type)
adamc@356 62 (f : nm :: Name -> t :: Type -> rest :: {Type}
adamc@356 63 -> fn [[nm] ~ rest] =>
adamc@356 64 tf t -> tr rest -> tr ([nm = t] ++ rest))
adamc@356 65 (i : tr []) =
adamc@356 66 fold [fn r :: {Type} => $(mapTT tf r) -> tr r]
adamc@356 67 (fn (nm :: Name) (t :: Type) (rest :: {Type}) (acc : _ -> tr rest)
adamc@356 68 [[nm] ~ rest] r =>
adamc@356 69 f [nm] [t] [rest] r.nm (acc (r -- nm)))
adamc@356 70 (fn _ => i)
adamc@336 71
adamc@339 72 fun foldT2R (tf :: (Type * Type) -> Type) (tr :: {(Type * Type)} -> Type)
adamc@367 73 (f : nm :: Name -> t :: (Type * Type) -> rest :: {(Type * Type)}
adamc@367 74 -> fn [[nm] ~ rest] =>
adamc@367 75 tf t -> tr rest -> tr ([nm = t] ++ rest))
adamc@367 76 (i : tr []) =
adamc@356 77 fold [fn r :: {(Type * Type)} => $(mapT2T tf r) -> tr r]
adamc@356 78 (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)})
adamc@356 79 (acc : _ -> tr rest) [[nm] ~ rest] r =>
adamc@356 80 f [nm] [t] [rest] r.nm (acc (r -- nm)))
adamc@356 81 (fn _ => i)
adamc@339 82
adamc@330 83 fun foldTR2 (tf1 :: Type -> Type) (tf2 :: Type -> Type) (tr :: {Type} -> Type)
adamc@367 84 (f : nm :: Name -> t :: Type -> rest :: {Type}
adamc@367 85 -> fn [[nm] ~ rest] =>
adamc@367 86 tf1 t -> tf2 t -> tr rest -> tr ([nm = t] ++ rest))
adamc@367 87 (i : tr []) =
adamc@356 88 fold [fn r :: {Type} => $(mapTT tf1 r) -> $(mapTT tf2 r) -> tr r]
adamc@356 89 (fn (nm :: Name) (t :: Type) (rest :: {Type})
adamc@356 90 (acc : _ -> _ -> tr rest) [[nm] ~ rest] r1 r2 =>
adamc@356 91 f [nm] [t] [rest] r1.nm r2.nm (acc (r1 -- nm) (r2 -- nm)))
adamc@356 92 (fn _ _ => i)
adamc@332 93
adamc@356 94 fun foldT2R2 (tf1 :: (Type * Type) -> Type) (tf2 :: (Type * Type) -> Type)
adamc@356 95 (tr :: {(Type * Type)} -> Type)
adamc@356 96 (f : nm :: Name -> t :: (Type * Type) -> rest :: {(Type * Type)}
adamc@356 97 -> fn [[nm] ~ rest] =>
adamc@356 98 tf1 t -> tf2 t -> tr rest -> tr ([nm = t] ++ rest))
adamc@356 99 (i : tr []) =
adamc@356 100 fold [fn r :: {(Type * Type)} => $(mapT2T tf1 r) -> $(mapT2T tf2 r) -> tr r]
adamc@356 101 (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)})
adamc@356 102 (acc : _ -> _ -> tr rest) [[nm] ~ rest] r1 r2 =>
adamc@356 103 f [nm] [t] [rest] r1.nm r2.nm (acc (r1 -- nm) (r2 -- nm)))
adamc@356 104 (fn _ _ => i)
adamc@339 105
adamc@336 106 fun foldTRX (tf :: Type -> Type) (ctx :: {Unit})
adamc@356 107 (f : nm :: Name -> t :: Type -> rest :: {Type}
adamc@356 108 -> fn [[nm] ~ rest] =>
adamc@356 109 tf t -> xml ctx [] []) =
adamc@356 110 foldTR [tf] [fn _ => xml ctx [] []]
adamc@356 111 (fn (nm :: Name) (t :: Type) (rest :: {Type}) [[nm] ~ rest] r acc =>
adamc@356 112 <xml>{f [nm] [t] [rest] r}{acc}</xml>)
adamc@360 113 <xml/>
adamc@336 114
adamc@339 115 fun foldT2RX (tf :: (Type * Type) -> Type) (ctx :: {Unit})
adamc@356 116 (f : nm :: Name -> t :: (Type * Type) -> rest :: {(Type * Type)}
adamc@356 117 -> fn [[nm] ~ rest] =>
adamc@356 118 tf t -> xml ctx [] []) =
adamc@356 119 foldT2R [tf] [fn _ => xml ctx [] []]
adamc@356 120 (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)})
adamc@356 121 [[nm] ~ rest] r acc =>
adamc@356 122 <xml>{f [nm] [t] [rest] r}{acc}</xml>)
adamc@360 123 <xml/>
adamc@339 124
adamc@332 125 fun foldTRX2 (tf1 :: Type -> Type) (tf2 :: Type -> Type) (ctx :: {Unit})
adamc@356 126 (f : nm :: Name -> t :: Type -> rest :: {Type}
adamc@356 127 -> fn [[nm] ~ rest] =>
adamc@356 128 tf1 t -> tf2 t -> xml ctx [] []) =
adamc@356 129 foldTR2 [tf1] [tf2] [fn _ => xml ctx [] []]
adamc@356 130 (fn (nm :: Name) (t :: Type) (rest :: {Type}) [[nm] ~ rest]
adamc@356 131 r1 r2 acc =>
adamc@356 132 <xml>{f [nm] [t] [rest] r1 r2}{acc}</xml>)
adamc@360 133 <xml/>
adamc@334 134
adamc@356 135 fun foldT2RX2 (tf1 :: (Type * Type) -> Type) (tf2 :: (Type * Type) -> Type)
adamc@356 136 (ctx :: {Unit})
adamc@356 137 (f : nm :: Name -> t :: (Type * Type) -> rest :: {(Type * Type)}
adamc@356 138 -> fn [[nm] ~ rest] =>
adamc@356 139 tf1 t -> tf2 t -> xml ctx [] []) =
adamc@356 140 foldT2R2 [tf1] [tf2] [fn _ => xml ctx [] []]
adamc@356 141 (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)})
adamc@356 142 [[nm] ~ rest] r1 r2 acc =>
adamc@356 143 <xml>{f [nm] [t] [rest] r1 r2}{acc}</xml>)
adamc@360 144 <xml/>
adamc@339 145
adamc@356 146 fun queryX (tables ::: {{Type}}) (exps ::: {Type}) (ctx ::: {Unit})
adamc@356 147 (q : sql_query tables exps) [tables ~ exps]
adamc@356 148 (f : $(exps ++ fold (fn nm (fields :: {Type}) acc [[nm] ~ acc] =>
adamc@356 149 [nm = $fields] ++ acc) [] tables)
adamc@356 150 -> xml ctx [] []) =
adamc@356 151 query q
adamc@356 152 (fn fs acc => return <xml>{acc}{f fs}</xml>)
adamc@360 153 <xml/>
adamc@341 154
adamc@356 155 fun oneOrNoRows (tables ::: {{Type}}) (exps ::: {Type})
adamc@356 156 (q : sql_query tables exps) [tables ~ exps] =
adamc@356 157 query q
adamc@356 158 (fn fs _ => return (Some fs))
adamc@356 159 None