diff options
Diffstat (limited to 'lib/ur/top.ur')
| -rw-r--r-- | lib/ur/top.ur | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/ur/top.ur b/lib/ur/top.ur index 02567917..92f1ecdd 100644 --- a/lib/ur/top.ur +++ b/lib/ur/top.ur @@ -172,6 +172,17 @@ fun foldR3 [K] [tf1 :: K -> Type] [tf2 :: K -> Type] [tf3 :: K -> Type] [tr :: { f [nm] [t] [rest] r1.nm r2.nm r3.nm (acc (r1 -- nm) (r2 -- nm) (r3 -- nm))) (fn _ _ _ => i) +fun foldR4 [K] [tf1 :: K -> Type] [tf2 :: K -> Type] [tf3 :: K -> Type] [tf4 :: K -> Type] [tr :: {K} -> Type] + (f : nm :: Name -> t :: K -> rest :: {K} + -> [[nm] ~ rest] => + tf1 t -> tf2 t -> tf3 t -> tf4 t -> tr rest -> tr ([nm = t] ++ rest)) + (i : tr []) [r ::: {K}] (fl : folder r) = + fl [fn r :: {K} => $(map tf1 r) -> $(map tf2 r) -> $(map tf3 r) -> $(map tf4 r) -> tr r] + (fn [nm :: Name] [t :: K] [rest :: {K}] [[nm] ~ rest] + (acc : _ -> _ -> _ -> _ -> tr rest) r1 r2 r3 r4 => + f [nm] [t] [rest] r1.nm r2.nm r3.nm r4.nm (acc (r1 -- nm) (r2 -- nm) (r3 -- nm) (r4 -- nm))) + (fn _ _ _ _ => i) + fun mapUX [tf :: Type] [ctx :: {Unit}] (f : nm :: Name -> rest :: {Unit} -> [[nm] ~ rest] => tf -> xml ctx [] []) = @@foldR [fn _ => tf] [fn _ => xml ctx [] []] @@ -224,6 +235,16 @@ fun mapX3 [K] [tf1 :: K -> Type] [tf2 :: K -> Type] [tf3 :: K -> Type] [ctx :: { <xml>{f [nm] [t] [rest] r1 r2 r3}{acc}</xml>) <xml/> +fun mapX4 [K] [tf1 :: K -> Type] [tf2 :: K -> Type] [tf3 :: K -> Type] [tf4 :: K -> Type] [ctx :: {Unit}] + (f : nm :: Name -> t :: K -> rest :: {K} + -> [[nm] ~ rest] => + tf1 t -> tf2 t -> tf3 t -> tf4 t -> xml ctx [] []) = + @@foldR4 [tf1] [tf2] [tf3] [tf4] [fn _ => xml ctx [] []] + (fn [nm :: Name] [t :: K] [rest :: {K}] [[nm] ~ rest] + r1 r2 r3 r4 acc => + <xml>{f [nm] [t] [rest] r1 r2 r3 r4}{acc}</xml>) + <xml/> + fun query1 [t ::: Name] [fs ::: {Type}] [state ::: Type] (q : sql_query [] [] [t = fs] []) (f : $fs -> state -> transaction state) (i : state) = query q (fn r => f r.t) i |