diff options
Diffstat (limited to 'lib/ur/top.ur')
-rw-r--r-- | lib/ur/top.ur | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/lib/ur/top.ur b/lib/ur/top.ur new file mode 100644 index 00000000..35e8519b --- /dev/null +++ b/lib/ur/top.ur @@ -0,0 +1,241 @@ +fun not b = if b then False else True + +con idT (t :: Type) = t +con record (t :: {Type}) = $t +con fstTT (t :: (Type * Type)) = t.1 +con sndTT (t :: (Type * Type)) = t.2 +con fstTTT (t :: (Type * Type * Type)) = t.1 +con sndTTT (t :: (Type * Type * Type)) = t.2 +con thdTTT (t :: (Type * Type * Type)) = t.3 + +con mapTT (f :: Type -> Type) = fold (fn nm t acc [[nm] ~ acc] => + [nm = f t] ++ acc) [] + +con mapUT = fn f :: Type => fold (fn nm t acc [[nm] ~ acc] => + [nm = f] ++ acc) [] + +con mapT2T (f :: (Type * Type) -> Type) = fold (fn nm t acc [[nm] ~ acc] => + [nm = f t] ++ acc) [] + +con mapT3T (f :: (Type * Type * Type) -> Type) = fold (fn nm t acc [[nm] ~ acc] => + [nm = f t] ++ acc) [] + +con ex = fn tf :: (Type -> Type) => + res ::: Type -> (choice :: Type -> tf choice -> res) -> res + +fun ex (tf :: (Type -> Type)) (choice :: Type) (body : tf choice) : ex tf = + fn (res ::: Type) (f : choice :: Type -> tf choice -> res) => + f [choice] body + +fun compose (t1 ::: Type) (t2 ::: Type) (t3 ::: Type) + (f1 : t2 -> t3) (f2 : t1 -> t2) (x : t1) = f1 (f2 x) + +fun txt (t ::: Type) (ctx ::: {Unit}) (use ::: {Type}) (_ : show t) (v : t) = + cdata (show v) + +fun foldUR (tf :: Type) (tr :: {Unit} -> Type) + (f : nm :: Name -> rest :: {Unit} + -> fn [[nm] ~ rest] => + tf -> tr rest -> tr ([nm] ++ rest)) + (i : tr []) = + fold [fn r :: {Unit} => $(mapUT tf r) -> tr r] + (fn (nm :: Name) (t :: Unit) (rest :: {Unit}) acc + [[nm] ~ rest] r => + f [nm] [rest] r.nm (acc (r -- nm))) + (fn _ => i) + +fun foldUR2 (tf1 :: Type) (tf2 :: Type) (tr :: {Unit} -> Type) + (f : nm :: Name -> rest :: {Unit} + -> fn [[nm] ~ rest] => + tf1 -> tf2 -> tr rest -> tr ([nm] ++ rest)) + (i : tr []) = + fold [fn r :: {Unit} => $(mapUT tf1 r) -> $(mapUT tf2 r) -> tr r] + (fn (nm :: Name) (t :: Unit) (rest :: {Unit}) acc + [[nm] ~ rest] r1 r2 => + f [nm] [rest] r1.nm r2.nm (acc (r1 -- nm) (r2 -- nm))) + (fn _ _ => i) + +fun foldURX2 (tf1 :: Type) (tf2 :: Type) (ctx :: {Unit}) + (f : nm :: Name -> rest :: {Unit} + -> fn [[nm] ~ rest] => + tf1 -> tf2 -> xml ctx [] []) = + foldUR2 [tf1] [tf2] [fn _ => xml ctx [] []] + (fn (nm :: Name) (rest :: {Unit}) [[nm] ~ rest] v1 v2 acc => + <xml>{f [nm] [rest] v1 v2}{acc}</xml>) + <xml/> + +fun foldTR (tf :: Type -> Type) (tr :: {Type} -> Type) + (f : nm :: Name -> t :: Type -> rest :: {Type} + -> fn [[nm] ~ rest] => + tf t -> tr rest -> tr ([nm = t] ++ rest)) + (i : tr []) = + fold [fn r :: {Type} => $(mapTT tf r) -> tr r] + (fn (nm :: Name) (t :: Type) (rest :: {Type}) (acc : _ -> tr rest) + [[nm] ~ rest] r => + f [nm] [t] [rest] r.nm (acc (r -- nm))) + (fn _ => i) + +fun foldT2R (tf :: (Type * Type) -> Type) (tr :: {(Type * Type)} -> Type) + (f : nm :: Name -> t :: (Type * Type) -> rest :: {(Type * Type)} + -> fn [[nm] ~ rest] => + tf t -> tr rest -> tr ([nm = t] ++ rest)) + (i : tr []) = + fold [fn r :: {(Type * Type)} => $(mapT2T tf r) -> tr r] + (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)}) + (acc : _ -> tr rest) [[nm] ~ rest] r => + f [nm] [t] [rest] r.nm (acc (r -- nm))) + (fn _ => i) + +fun foldT3R (tf :: (Type * Type * Type) -> Type) (tr :: {(Type * Type * Type)} -> Type) + (f : nm :: Name -> t :: (Type * Type * Type) -> rest :: {(Type * Type * Type)} + -> fn [[nm] ~ rest] => + tf t -> tr rest -> tr ([nm = t] ++ rest)) + (i : tr []) = + fold [fn r :: {(Type * Type * Type)} => $(mapT3T tf r) -> tr r] + (fn (nm :: Name) (t :: (Type * Type * Type)) (rest :: {(Type * Type * Type)}) + (acc : _ -> tr rest) [[nm] ~ rest] r => + f [nm] [t] [rest] r.nm (acc (r -- nm))) + (fn _ => i) + +fun foldTR2 (tf1 :: Type -> Type) (tf2 :: Type -> Type) (tr :: {Type} -> Type) + (f : nm :: Name -> t :: Type -> rest :: {Type} + -> fn [[nm] ~ rest] => + tf1 t -> tf2 t -> tr rest -> tr ([nm = t] ++ rest)) + (i : tr []) = + fold [fn r :: {Type} => $(mapTT tf1 r) -> $(mapTT tf2 r) -> tr r] + (fn (nm :: Name) (t :: Type) (rest :: {Type}) + (acc : _ -> _ -> tr rest) [[nm] ~ rest] r1 r2 => + f [nm] [t] [rest] r1.nm r2.nm (acc (r1 -- nm) (r2 -- nm))) + (fn _ _ => i) + +fun foldT2R2 (tf1 :: (Type * Type) -> Type) (tf2 :: (Type * Type) -> Type) + (tr :: {(Type * Type)} -> Type) + (f : nm :: Name -> t :: (Type * Type) -> rest :: {(Type * Type)} + -> fn [[nm] ~ rest] => + tf1 t -> tf2 t -> tr rest -> tr ([nm = t] ++ rest)) + (i : tr []) = + fold [fn r :: {(Type * Type)} => $(mapT2T tf1 r) -> $(mapT2T tf2 r) -> tr r] + (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)}) + (acc : _ -> _ -> tr rest) [[nm] ~ rest] r1 r2 => + f [nm] [t] [rest] r1.nm r2.nm (acc (r1 -- nm) (r2 -- nm))) + (fn _ _ => i) + +fun foldT3R2 (tf1 :: (Type * Type * Type) -> Type) (tf2 :: (Type * Type * Type) -> Type) + (tr :: {(Type * Type * Type)} -> Type) + (f : nm :: Name -> t :: (Type * Type * Type) -> rest :: {(Type * Type * Type)} + -> fn [[nm] ~ rest] => + tf1 t -> tf2 t -> tr rest -> tr ([nm = t] ++ rest)) + (i : tr []) = + fold [fn r :: {(Type * Type * Type)} => $(mapT3T tf1 r) -> $(mapT3T tf2 r) -> tr r] + (fn (nm :: Name) (t :: (Type * Type * Type)) (rest :: {(Type * Type * Type)}) + (acc : _ -> _ -> tr rest) [[nm] ~ rest] r1 r2 => + f [nm] [t] [rest] r1.nm r2.nm (acc (r1 -- nm) (r2 -- nm))) + (fn _ _ => i) + +fun foldTRX (tf :: Type -> Type) (ctx :: {Unit}) + (f : nm :: Name -> t :: Type -> rest :: {Type} + -> fn [[nm] ~ rest] => + tf t -> xml ctx [] []) = + foldTR [tf] [fn _ => xml ctx [] []] + (fn (nm :: Name) (t :: Type) (rest :: {Type}) [[nm] ~ rest] r acc => + <xml>{f [nm] [t] [rest] r}{acc}</xml>) + <xml/> + +fun foldT2RX (tf :: (Type * Type) -> Type) (ctx :: {Unit}) + (f : nm :: Name -> t :: (Type * Type) -> rest :: {(Type * Type)} + -> fn [[nm] ~ rest] => + tf t -> xml ctx [] []) = + foldT2R [tf] [fn _ => xml ctx [] []] + (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)}) + [[nm] ~ rest] r acc => + <xml>{f [nm] [t] [rest] r}{acc}</xml>) + <xml/> + +fun foldT3RX (tf :: (Type * Type * Type) -> Type) (ctx :: {Unit}) + (f : nm :: Name -> t :: (Type * Type * Type) -> rest :: {(Type * Type * Type)} + -> fn [[nm] ~ rest] => + tf t -> xml ctx [] []) = + foldT3R [tf] [fn _ => xml ctx [] []] + (fn (nm :: Name) (t :: (Type * Type * Type)) (rest :: {(Type * Type * Type)}) + [[nm] ~ rest] r acc => + <xml>{f [nm] [t] [rest] r}{acc}</xml>) + <xml/> + +fun foldTRX2 (tf1 :: Type -> Type) (tf2 :: Type -> Type) (ctx :: {Unit}) + (f : nm :: Name -> t :: Type -> rest :: {Type} + -> fn [[nm] ~ rest] => + tf1 t -> tf2 t -> xml ctx [] []) = + foldTR2 [tf1] [tf2] [fn _ => xml ctx [] []] + (fn (nm :: Name) (t :: Type) (rest :: {Type}) [[nm] ~ rest] + r1 r2 acc => + <xml>{f [nm] [t] [rest] r1 r2}{acc}</xml>) + <xml/> + +fun foldT2RX2 (tf1 :: (Type * Type) -> Type) (tf2 :: (Type * Type) -> Type) + (ctx :: {Unit}) + (f : nm :: Name -> t :: (Type * Type) -> rest :: {(Type * Type)} + -> fn [[nm] ~ rest] => + tf1 t -> tf2 t -> xml ctx [] []) = + foldT2R2 [tf1] [tf2] [fn _ => xml ctx [] []] + (fn (nm :: Name) (t :: (Type * Type)) (rest :: {(Type * Type)}) + [[nm] ~ rest] r1 r2 acc => + <xml>{f [nm] [t] [rest] r1 r2}{acc}</xml>) + <xml/> + +fun foldT3RX2 (tf1 :: (Type * Type * Type) -> Type) (tf2 :: (Type * Type * Type) -> Type) + (ctx :: {Unit}) + (f : nm :: Name -> t :: (Type * Type * Type) -> rest :: {(Type * Type * Type)} + -> fn [[nm] ~ rest] => + tf1 t -> tf2 t -> xml ctx [] []) = + foldT3R2 [tf1] [tf2] [fn _ => xml ctx [] []] + (fn (nm :: Name) (t :: (Type * Type * Type)) (rest :: {(Type * Type * Type)}) + [[nm] ~ rest] r1 r2 acc => + <xml>{f [nm] [t] [rest] r1 r2}{acc}</xml>) + <xml/> + +fun queryX (tables ::: {{Type}}) (exps ::: {Type}) (ctx ::: {Unit}) + (q : sql_query tables exps) [tables ~ exps] + (f : $(exps ++ fold (fn nm (fields :: {Type}) acc [[nm] ~ acc] => + [nm = $fields] ++ acc) [] tables) + -> xml ctx [] []) = + query q + (fn fs acc => return <xml>{acc}{f fs}</xml>) + <xml/> + +fun queryX' (tables ::: {{Type}}) (exps ::: {Type}) (ctx ::: {Unit}) + (q : sql_query tables exps) [tables ~ exps] + (f : $(exps ++ fold (fn nm (fields :: {Type}) acc [[nm] ~ acc] => + [nm = $fields] ++ acc) [] tables) + -> transaction (xml ctx [] [])) = + query q + (fn fs acc => + r <- f fs; + return <xml>{acc}{r}</xml>) + <xml/> + +fun oneOrNoRows (tables ::: {{Type}}) (exps ::: {Type}) + (q : sql_query tables exps) [tables ~ exps] = + query q + (fn fs _ => return (Some fs)) + None + +fun oneRow (tables ::: {{Type}}) (exps ::: {Type}) + (q : sql_query tables exps) [tables ~ exps] = + o <- oneOrNoRows q; + return (case o of + None => error <xml>Query returned no rows</xml> + | Some r => r) + +fun eqNullable (tables ::: {{Type}}) (agg ::: {{Type}}) (exps ::: {Type}) + (t ::: Type) (_ : sql_injectable (option t)) + (e1 : sql_exp tables agg exps (option t)) + (e2 : sql_exp tables agg exps (option t)) = + (SQL ({e1} IS NULL AND {e2} IS NULL) OR {e1} = {e2}) + +fun eqNullable' (tables ::: {{Type}}) (agg ::: {{Type}}) (exps ::: {Type}) + (t ::: Type) (_ : sql_injectable (option t)) + (e1 : sql_exp tables agg exps (option t)) + (e2 : option t) = + case e2 of + None => (SQL {e1} IS NULL) + | Some _ => sql_binary sql_eq e1 (sql_inject e2) |