Mercurial > meta
annotate record.ur @ 11:67b33be5d56a
Record.numFields
| author | Adam Chlipala <adam@chlipala.net> |
|---|---|
| date | Thu, 03 Feb 2011 14:22:02 -0500 |
| parents | 763eb2f2aa5a |
| children | a6730c3cfea7 |
| rev | line source |
|---|---|
| adam@11 | 1 fun numFields [r ::: {Type}] (fl : folder r) (r : $r) : int = |
| adam@11 | 2 @fold [fn _ => int] (fn [nm ::_] [u ::_] [r ::_] [[nm] ~ r] acc => acc+1) 0 fl |
| adam@11 | 3 |
| adam@10 | 4 fun mem [a ::: Type] [ns ::: {Unit}] (_ : eq a) (fl : folder ns) (x : a) (r : $(mapU a ns)) : bool = |
| adam@10 | 5 @foldUR [a] [fn _ => bool] |
| adam@10 | 6 (fn [nm ::_] [r ::_] [[nm] ~ r] y acc => |
| adam@10 | 7 acc || x = y) |
| adam@10 | 8 False fl r |