Hi Emmanuel, On Fri, Feb 08, 2013 at 01:51:26PM +0100, Emmanuel Touzery wrote:
But that way I must still have public getEventProvider() function which returns the record, that I call by convention without some compiler enforcement, which doesn't sound right.
In some way you have to tell your program the available providers. How should a compiler enforce this?
I think what I am trying to achieve is a very common problem and I maybe suggested a bit too strongly how I would code it in OO languages, maybe it should be arranged completely differently in idiomatic haskell?
I think that the 'record of functions' is quite idiomatic Haskell for this use case.
Otherwise which Oleg as you talking about, maybe I would read that original post too.
I had pretty much the same issue and Oleg gave pretty much the same answer. And there's really only one Oleg ;): http://okmij.org/ftp/ There's no way you could miss him hanging around in Haskell land for some time. Greetings, Daniel