packages with orphaned instances only

[Henning Thielemann]

Gábor Lehel schrieb:
> 2011/1/9 Henning Thielemann <lemming at henning-thielemann.de>:
>> This would be analogous to automatic import of instances at a package level.
>>
>> However the adapter package might import other heavyweight packages that
>> someone may not want to have.
> 
> Yes, that's a good analogy. Basically a way to ensure consistent
> instances not just in a single program, but across all of Hackage
> (modulo opt-out capabilities).
> 
> Presumably the only dependencies for adapter packages would be the two
> packages they are adapting between in almost all cases?

I am uncertain. Someone might choose to move an instance to an adapter
package just because it needs a critical additional import.

Btw. what is the opposite of an orphan instance?