(At the end of my previous update, I mean namespaces 1, 2 and 3 instead of A, B and C. Sorry for that ...)
Op woensdag 27 februari 2013 23:49:42 UTC+1 schreef Joachim De Beule het volgende: > > Hi Jim, > > I'm sorry I can't really be more specific. I tried to duplicate the > problems with a few simple steps, but they only seem to turn when things > get complicates, e.g. involve different namespaces etc. I now even > encountered a third problem which I think is related to the other two > because it involves caching of protocol functions: > > - In namespace 1, I define and create a record, say R, that implements a > protocol P as defined in namespace 2. > - In a third namespace I call a method called "classes" of protocol P on > record R, i.e. I evaluate "(classes R)". > > Clojure then complains with "IllegalArgumentException No implementation of > method: :classes of protocol: #'sentiment.protocols/ClassifierP found for > class: sentiment.classification.client$fn__1479 > clojure.core/-cache-protocol-fn (core_deftype.clj:527)". > > - when I evaluate "(classes R)" in namespace 1 (of R), no exception is > raised > > Both namespaces A and C use namespace B. > > > > Op woensdag 27 februari 2013 17:19:33 UTC+1 schreef Jim foo.bar het > volgende: > >> I'm not sure I fully understand the problem but I'll do my best to >> guess... >> >> 1) are you sure you're using the protocol or are you actually trying to >> define a method in the interface that the protocol generates? Try fully >> qualifying the name of you protocol at the extension point... >> >> 2)Do your protocols exist in a separate namespace? Are you reloading the >> namespace after making changes? >> >> Could you provide a minimal example of the problem? I've been using >> protocols quite heavily lately and I do remember some of these issues >> but I can't pinpoint your exact problem... >> >> Jim >> >> ps: are you by any chance trying to create 'mixins'? If yes remember >> that for a protocol to be fully populated , it must be extended fully >> per individual type (quote from the JOy of Clojure) >> >> >> On 27/02/13 15:48, Joachim De Beule wrote: >> > Hi all, >> > >> > I'm doing interactive development with emacs+clojure-mode+nrepl and >> > I'm experiencing some seriously annoying problems with protocols and >> > records implementing the protocols: >> > >> > 1) When I redefine a protocol by adding a method to it, and then >> > re-implement a record according in accordance to the changed protocol, >> > clojure complains that it cannot implement a method not in the >> > protocol/interface. >> > >> > 2) when I change a protocol method in an existing record (e.g. by >> > simply adding a println statement) the changes do not have any effect. >> > >> > These problems persist even when I do an nrepl-restart or close emacs >> > and restart. Any ideas? >> > >> > Joachim >> > -- >> > -- >> > You received this message because you are subscribed to the Google >> > Groups "Clojure" group. >> > To post to this group, send email to clo...@googlegroups.com >> > Note that posts from new members are moderated - please be patient >> > with your first post. >> > To unsubscribe from this group, send email to >> > clojure+u...@googlegroups.com >> > For more options, visit this group at >> > http://groups.google.com/group/clojure?hl=en >> > --- >> > You received this message because you are subscribed to the Google >> > Groups "Clojure" group. >> > To unsubscribe from this group and stop receiving emails from it, send >> > an email to clojure+u...@googlegroups.com. >> > For more options, visit https://groups.google.com/groups/opt_out. >> > >> > >> >> -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
