diff options
Diffstat (limited to 'lib/ur/option.urs')
| -rw-r--r-- | lib/ur/option.urs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/ur/option.urs b/lib/ur/option.urs index ced6156e..984bc681 100644 --- a/lib/ur/option.urs +++ b/lib/ur/option.urs @@ -1,5 +1,8 @@ datatype t = datatype Basis.option +val eq : a ::: Type -> eq a -> eq (t a) + val isSome : a ::: Type -> t a -> bool val mp : a ::: Type -> b ::: Type -> (a -> b) -> t a -> t b +val bind : a ::: Type -> b ::: Type -> (a -> option b) -> t a -> t b |