14 Nov
2007
14 Nov
'07
3:42 p.m.
On Wed, 14 Nov 2007, Jules Bean wrote:
Henning Thielemann wrote:
No problem, write a function like 'maybe' to inspect the data.
Instead of 'f m' with f :: Maybe T -> S f (Just x) = g x f Nothing = h
Yes. It is a problem.
Do you write all your code using higher-order functions, never matching explicitly on constructors? I don't.
I do it more and more, because it let me switch the underlying data structure more easily.