12 Feb
2009
12 Feb
'09
2:06 p.m.
On Thu, 12 Feb 2009, Henning Thielemann wrote:
Unfortunately I have just another wish. In a parser I like to show by types whether the parser can fail or not. To this end I have a type parameter for a monad transformer that can be instantiated either by MaybeT or by IdentityT. The only problem is, that there is no IdentityT in transformers package, yet.
Does the attached module makes sense?