I am seeing the same behavior when I remove the lein-virgil plugin. On Tue, Jul 31, 2018 at 11:38 AM, Mark Engelberg <mark.engelb...@gmail.com> wrote:
> That's surprising, but good to know. Thanks. > > On Tue, Jul 31, 2018 at 9:56 AM, Renzo Borgatti <rebor...@gmail.com> > wrote: > >> Hey Mark, it's lein-virgil interfering. As of why, better opening an >> issue there. >> >> Renzo >> >> > On 30 Jul 2018, at 11:50, Mark Engelberg <mark.engelb...@gmail.com> >> wrote: >> > >> > OK, I just pushed the repo (work in progress) to github. >> https://github.com/Engelberg/mister-rogers >> > At the bottom of mister-rogers.wrappers I tacked on the three lines >> we've been discussing. >> > https://github.com/Engelberg/mister-rogers/blob/523fc29f8827 >> 193fa9ea6ae2e82649e2933e6ae3/src/clj/mister_rogers/wrappers.clj#L80 >> > >> > >> > Here's a REPL interaction: >> > >> > C:\devel\Clojure\mister-rogers>lein repl >> > >> > recompiling all files in ["C:\\devel\\Clojure\\mister-r >> ogers\\src\\java"] >> > :reloading (mister-rogers.core mister-rogers.protocols >> mister-rogers.problem mister-rogers.wrappers mister-rogers.core-test) >> > >> > recompiling all files in ["C:\\devel\\Clojure\\mister-r >> ogers\\src\\java"] >> > :reloading (mister-rogers.core mister-rogers.protocols >> mister-rogers.problem mister-rogers.wrappers mister-rogers.core-test) >> > nREPL server started on port 49492 on host 127.0.0.1 - nrepl:// >> 127.0.0.1:49492 >> > REPL-y 0.3.7, nREPL 0.2.12 >> > Clojure 1.9.0 >> > Java HotSpot(TM) 64-Bit Server VM 1.8.0_66-b18 >> > Docs: (doc function-name-here) >> > (find-doc "part-of-name-here") >> > Source: (source function-name-here) >> > Javadoc: (javadoc java-object-or-class-here) >> > Exit: Control+D or (exit) or (quit) >> > Results: Stored in vars *1, *2, *3, an exception in *e >> > >> > user=> (in-ns 'mister-rogers.wrappers) >> > #namespace[mister-rogers.wrappers] >> > mister-rogers.wrappers=> (get-test p) >> > >> > ClassCastException mister_rogers.wrappers.proxy$j >> ava.lang.Object$Interface$7e434bc9 cannot be cast to >> mister_rogers.wrappers.Interface mister-rogers.wrappers/get-test >> (wrappers.clj:82) >> > >> > >> > Thanks for looking at this. >> > >> > >> > On Mon, Jul 30, 2018 at 3:43 AM, Nicola Mometto <brobro...@gmail.com> >> wrote: >> > Can you paste an entire repl session, starting from how you launch it >> (e.g. lein repl vs clj -- ideally not from a project) reproducing this? >> > I'm interested in taking a look but I simply cannot repro :/ >> > >> >> On 30 Jul 2018, at 11:40, Mark Engelberg <mark.engelb...@gmail.com> >> wrote: >> >> >> >> Yes, it is in a fresh environment. >> >> >> >> I find that the problematic example does work in the user namespace, >> but it doesn't work in my segmented namespace (ns mister-rogers.wrappers, >> to be really specific). >> >> >> >> On Mon, Jul 30, 2018 at 3:34 AM, Nicola Mometto <brobro...@gmail.com> >> wrote: >> >> No, I just tested this on 1.9.0 and 1.8.0 and I get no reflection, as >> I'd expect. >> >> >> >> Are you testing this in a fresh environment? >> >> >> >> >> >>> On 30 Jul 2018, at 11:31, Mark Engelberg <mark.engelb...@gmail.com> >> wrote: >> >>> >> >>> I'm using 1.9.0. Is this a behavior that recently changed? >> >>> >> >>> On Mon, Jul 30, 2018 at 3:28 AM, Nicola Mometto <brobro...@gmail.com> >> wrote: >> >>> Which version of clojure? This works fine in 1.10 >> >>> >> >>> Clojure 1.10.0-master-SNAPSHOT >> >>> user=> (set! *warn-on-reflection* true) >> >>> true >> >>> user=> (definterface Interface (test [])) >> >>> user.Interface >> >>> user=> (def p (proxy [Object Interface] [] (test [] 1))) >> >>> #'user/p >> >>> user=> (defn get-test [o] (.test ^Interface o)) >> >>> #'user/get-test >> >>> user=> (get-test p) >> >>> 1 >> >>> >> >>> >> >>>> On 30 Jul 2018, at 11:26, Mark Engelberg <mark.engelb...@gmail.com> >> wrote: >> >>>> >> >>>> Those fishy things were errors I made when simplifying and >> transcribing the proxy to post, but I have it correct in my own code. >> >>>> >> >>>> Here's a more precise, tested minimal example: >> >>>> >> >>>> (definterface Interface (test [])) >> >>>> (def p (proxy [Object Interface] [] (test [] 1))) >> >>>> (defn get-test [o] (.test ^Interface o)) >> >>>> >> >>>> => (get-test p) >> >>>> This throws an error that it can't cast the proxy to Interface. >> >>>> >> >>>> If you remove the ^Interface type hint, then get-test will work but >> will trigger reflection. >> >>>> >> >>>> Thanks for looking at this. It seems like it should work, but it >> doesn't. >> >>>> >> >>>> >> >>>> On Mon, Jul 30, 2018 at 3:06 AM, Nicola Mometto <brobro...@gmail.com> >> wrote: >> >>>> That's exactly what you should do and it does work, e.g.: >> >>>> >> >>>> user=> (set! *warn-on-reflection* true) >> >>>> true >> >>>> user=> (.meta ^clojure.lang.IMeta (proxy [clojure.lang.IMeta] [] >> (meta [] {:a 1}))) >> >>>> {:a 1} >> >>>> >> >>>> In your small example you have two errors that might be fishy: a >> missing arg vector to pass to the super ctor and an extra `this` parameter >> in the method impl (proxy, unlike reify, is anaphoric and binds `this` for >> you) >> >>>> >> >>>> >> >>>>> On 30 Jul 2018, at 10:56, Mark Engelberg <mark.engelb...@gmail.com> >> wrote: >> >>>>> >> >>>>> Let's say I have a proxy object: >> >>>>> >> >>>>> (def p (proxy [MyClass MyInterface] (interfaceMethod [this] ...))) >> >>>>> >> >>>>> Now, I want to call (.interfaceMethod p). How do I do this without >> reflection? >> >>>>> I would have thought that (.interfaceMethod ^MyInterface p) would >> work, but this results in an error message that this proxy object cannot be >> cast to MyInterface. >> >>>>> >> >>>>> >> >>>>> >> >>>>> -- >> >>>>> 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 - 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