diff options
| author |  Adam Chlipala <adamc@hcoop.net> | 2009-02-26 16:16:54 -0500 |
|---|---|---|
| committer | Adam Chlipala <adamc@hcoop.net> | 2009-02-26 16:16:54 -0500 |
| commit | e4e1bf5221bd0cf68df2ba444425e5a0b9d50af1 (patch) | |
| tree | 986072376068c16f878d6702faa48b50dbd85f92 /lib/ur/top.ur | |
| parent | 40e3a4a698ed666280de68373d3ed09f43985bef (diff) | |
Kind-polymorphic [fst] and friends
Diffstat (limited to 'lib/ur/top.ur')
| -rw-r--r-- | lib/ur/top.ur | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/lib/ur/top.ur b/lib/ur/top.ur index 48ee4dd0..053075bd 100644 --- a/lib/ur/top.ur +++ b/lib/ur/top.ur @@ -49,11 +49,11 @@ 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 fst = K1 ==> K2 ==> fn t :: (K1 * K2) => t.1 +con snd = K1 ==> K2 ==> fn t :: (K1 * K2) => t.2 +con fst3 = K1 ==> K2 ==> K3 ==> fn t :: (K1 * K2 * K3) => t.1 +con snd3 = K1 ==> K2 ==> K3 ==> fn t :: (K1 * K2 * K3) => t.2 +con thd3 = K1 ==> K2 ==> K3 ==> fn t :: (K1 * K2 * K3) => t.3 con mapUT = fn f :: Type => map (fn _ :: Unit => f) |