18 Nov
2009
18 Nov
'09
9:03 p.m.
Daniel Fischer schrieb:
Am Donnerstag 19 November 2009 01:07:37 schrieb Henning Thielemann:
Seems to be that the author defined an orphan instance - something one should never do!
So what do you do if you need an instance ClassX TypeY but the author of the package that defines TypeY hasn't provided one?
The author (me) has added the instance after it became aware to him (me) ...
You can define an orphan instance or duplicate packageY but with the instance. Both are bad. Providing an orphan instance until packageY has one seems the lesser evil to me. Are there any good options?
A separate package for that orphan instance would be the best solution.