FYI, while I disagree with your conclusion (I think we should go fix libraries instead), I ran into the same issue just now for roughly the same reason, except the thing that pulled in an old version of core.unify was core.typed, which pulls in 0.5.3 through core.contracts.
> On Aug 21, 2016, at 5:24 PM, Brian Marick <mar...@roundingpegs.com> wrote: > > As an update. I’ve fixed the `ns` oopsie in Suchwow (one file), and the > coincident `ns` oopsie in Midje (one file). But this happens when running > Midje’s self-tests against Clojure 1.9alpha11: > >> Exception in thread "main" java.lang.IllegalArgumentException: Call to >> clojure.core/fn did not conform to spec: >> In: [0] val: clojure.core.unify/var-unify fails spec: >> :clojure.core.specs/arg-list at: [:args :bs :arity-1 :args] predicate: >> vector? >> In: [0] val: clojure.core.unify/var-unify fails spec: >> :clojure.core.specs/args+body at: [:args :bs :arity-n] predicate: (cat :args >> :clojure.core.specs/arg-list :prepost (? map?) :body (* any?)) >> :clojure.spec/args (clojure.core.unify/var-unify [varp v expr binds] >> (clojure.core/if-let [vb__10124__auto__ (binds v)] >> (clojure.core.unify/garner-unifiers varp vb__10124__auto__ expr binds) >> (clojure.core/if-let [vexpr__10125__auto__ (clojure.core/and (varp expr) >> (binds expr))] (clojure.core.unify/garner-unifiers varp v >> vexpr__10125__auto__ binds) (if (clojure.core.unify/occurs? varp v expr >> binds) (throw (java.lang.IllegalStateException. (clojure.core/str "Cycle >> found in the path " expr))) (clojure.core.unify/bind-phase binds v expr))))) >> , compiling:(clojure/core/unify.clj:82:18) > > I suspect the problem is that Midje uses an old version of clojure.core.unify > (0.5.2). I use that old version because a later versions (like the current > 0.5.7) failed in my use case for no reason I could quickly understand. So I > decided to just stick with the older, working version because forced upgrades > make kittens suffer. And I am a kitten. And also: by semver, why should a > satisfied user of 0.5.2 care about 0.5.7? > > (Note: I don’t know whether clojure.core.unify 0.5.7 is conformant to > whatever spec is breaking.) > > So upgrading Midje to Clojure 1.0alpha11 is not turning out as simple as > might be hoped. > > I know that, pace Casablanca[*], the problems of a guy trying to provide an > alternative to clojure.test don’t amount to a hill of beans in this crazy > world. But I offer this datapoint for clojure.core.team consideration. > > ———— > > [*] > > Rick: But I've got a job to do, too. Where I'm going, you can't follow. What > I've got to do, you can't be any part of. Ilsa, I'm no good at being noble, > but it doesn't take much to see that the problems of three little people > don't amount to a hill of beans in this crazy world. Someday you'll > understand that. > [Ilsa lowers her head and begins to cry] > Rick: Now, now... > [Rick gently places his hand under her chin and raises it so their eyes meet] > Rick: Here's looking at you kid. > > -- > 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/d/optout. -- 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/d/optout.
