On Thu, Aug 28, 2008 at 10:59 AM, R.L. Grigg <[EMAIL PROTECTED]> wrote: > Hmm, I guess the wrinkle in this particular case is if the "contract" doesnt > specify something that the programmer assumes to be safe to do (like > enumerating backwards), how can you know how to implement your end? I guess > there are times when the underlying implementation details can/must > influence your highlevel design? >
If the contract doesn't specify something, then the only thing that's safe to assume is that it's not supported. I'd argue that implementation details shouldn't influence higher-level design if the contract is well-specified. Although, it's probably unavoidable that it happens---but, you want to make sure that your design doesn't *depend* on an implementation detail that's not specified in the contract. Phil _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
