Excuse my poor experience with contracts, this is probably an easy one. I'm using a copy of net/url and have a strange problem. The copied library is working fine in general, but this problem cropped up today:
struct:exn:fail:contract:blame url-port: contract violation expected: url? given: #<url> in: the 1st argument of (-> url? (or/c #f number?)) contract from: /home/epearson/work/racket/github/adaptnet/url-structs.rkt blaming: /home/epearson/work/racket/github/racqueb/httpc.rkt at: /home/epearson/work/racket/github/adaptnet/url-structs.rkt:4.28 The error is thrown in my usage of url-port which is being passed a perfectly good url struct object. The file is requiring the copied url-structs. If I play with the function that is being blamed in httpc.rkt via the repl in dr racket, this specific error is not thrown. The call to (url-port url) succeeds without throwing this contract exception. >From my primitive understanding, I'm flummoxed: Why is a #<url> not a url? I suspected that there may have been a leftover require of net/url confusing things, but I can't find any in my code. Using racket head from github 5.90.0.9--2013-10-20(d6610289/d) Help! Thanks, Erik.
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