Hi, Am 27.03.2009 um 09:25 schrieb Mark Engelberg:
I may come along and want to extend test-prefer to a type ::d which derives from ::c and ::e, where ::e provides an alternative implementation.a b (a and b are intended to be hidden from end-user)| | ---------- | c e | | ------------ | d (derive ::d ::c) (derive ::d ::e) (defmethod test-prefer ::e [h] "e") Now, as an external user, I know nothing about where test-prefer on ::c gets its behavior. Obviously, I have to disambiguate between whether test-prefer chooses ::c over ::e, so I may try something like this: (prefer-method test-prefer ::c ::e) But this will not work. I still get an error saying I need to disambiguate between ::a and ::e. And not knowing anything about ::a, I could be very confused, and not know how to provide this information.
Is there some special reason, why choosing ::c is not enough in prefer-method? As soon as I preferred ::c over ::e. Why should I then need to go further up the tree? Sincerely Meikel
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