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 ce110b27..7073884f 100644 --- a/lib/ur/top.ur +++ b/lib/ur/top.ur @@ -155,6 +155,17 @@ fun foldR2 [K] [tf1 :: K -> Type] [tf2 :: K -> Type] [tr :: {K} -> Type] f [nm] [t] [rest] ! r1.nm r2.nm (acc (r1 -- nm) (r2 -- nm))) (fn _ _ => i) +fun foldR3 [K] [tf1 :: K -> Type] [tf2 :: K -> Type] [tf3 :: K -> Type] [tr :: {K} -> Type] + (f : nm :: Name -> t :: K -> rest :: {K} + -> [[nm] ~ rest] => + tf1 t -> tf2 t -> tf3 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) -> tr r] + (fn [nm :: Name] [t :: K] [rest :: {K}] [[nm] ~ rest] + (acc : _ -> _ -> _ -> tr rest) r1 r2 r3 => + f [nm] [t] [rest] ! r1.nm r2.nm r3.nm (acc (r1 -- nm) (r2 -- nm) (r3 -- nm))) + (fn _ _ _ => i) + fun foldRX [K] [tf :: K -> Type] [ctx :: {Unit}] (f : nm :: Name -> t :: K -> rest :: {K} -> [[nm] ~ rest] => @@ -174,6 +185,16 @@ fun foldRX2 [K] [tf1 :: K -> Type] [tf2 :: K -> Type] [ctx :: {Unit}] <xml>{f [nm] [t] [rest] ! r1 r2}{acc}</xml>) <xml/> +fun foldRX3 [K] [tf1 :: K -> Type] [tf2 :: K -> Type] [tf3 :: K -> Type] [ctx :: {Unit}] + (f : nm :: Name -> t :: K -> rest :: {K} + -> [[nm] ~ rest] => + tf1 t -> tf2 t -> tf3 t -> xml ctx [] []) = + foldR3 [tf1] [tf2] [tf3] [fn _ => xml ctx [] []] + (fn [nm :: Name] [t :: K] [rest :: {K}] [[nm] ~ rest] + r1 r2 r3 acc => + <xml>{f [nm] [t] [rest] ! r1 r2 r3}{acc}</xml>) + <xml/> + fun queryI [tables ::: {{Type}}] [exps ::: {Type}] [tables ~ exps] (q : sql_query tables exps) (f : $(exps ++ map (fn fields :: {Type} => $fields) tables) |