Mercurial > urweb
annotate lib/ur/monad.ur @ 897:2faf558b2d05
FFI manual section
| author | Adam Chlipala <adamc@hcoop.net> |
|---|---|
| date | Sat, 18 Jul 2009 15:08:21 -0400 |
| parents | 74e9e7642f08 |
| children | d1d0b18afd3d |
| rev | line source |
|---|---|
| adamc@834 | 1 fun exec [m ::: Type -> Type] (_ : monad m) [ts ::: {Type}] r (fd : folder ts) = |
| adamc@834 | 2 foldR [m] [fn ts => m $ts] |
| adamc@834 | 3 (fn [nm :: Name] [v :: Type] [rest :: {Type}] [[nm] ~ rest] action acc => |
| adamc@834 | 4 this <- action; |
| adamc@834 | 5 others <- acc; |
| adamc@834 | 6 return ({nm = this} ++ others)) |
| adamc@834 | 7 (return {}) [ts] fd r |