This works fine on my box: foo=> (ns foo (require [clojure.core.async :refer [go <! chan >!!]])) nil foo=> (defmacro foo #_=> [c] #_=> `(<! ~c)) #'foo/foo foo=>
foo=> (let [c (chan)] #_=> (go (prn (foo c))) #_=> (>!! c :hi)) :hi nil foo=> Timothy Baldridge On Mon, Aug 5, 2013 at 7:59 AM, Alice <dofflt...@gmail.com> wrote: > I didn't have to fully qualify >! because I referred it using :refer. I'm > Sorry if that was not clear. > > > On Monday, August 5, 2013 10:45:16 PM UTC+9, tbc++ wrote: > >> Right, so if syntax quote fully qualifies unqualified symbols with the >> current namespace, what good is user/>! to core.async? It has no clue that >> you want that to be a put and not something else. So yes, either async/>! >> or a fully qualified symbol is what you want here. >> >> Timothy Baldridge >> >> >> On Mon, Aug 5, 2013 at 7:40 AM, Alice <doff...@gmail.com> wrote: >> >>> I'm not sure I understand your point. Syntax-quote fully qualifies >>> unqualified symbols with the current namespace, so it shouldn't be a >>> problem as long as I don't redefine the >! in the file that defines the >>> macro. On the other hand, ~'>! would be dangerous because you don't know >>> what it will be evaluated to in the user's namespace. >>> >>> >>> On Monday, August 5, 2013 9:39:16 PM UTC+9, tbc++ wrote: >>> >>>> Your macro is incorrect. Notice what happens to un-namespaced symbols >>>> inside a syntax quote: >>>> >>>> (ns 'user) >>>> (macroexpand `(foo)) >>>> >>>> =>(user/foo) >>>> >>>> So your use of >! is getting translated into mynamespace/>!. Core.async >>>> sees your macro and expands it, it just doesn't condsider mynamespace/>! to >>>> be a put! call. Instead it sees it as any other function. >>>> >>>> To get this to work the way you want, you need to do one of the >>>> following >>>> >>>> `(~'>! c 42) >>>> >>>> or >>>> >>>> `(clojure.core.async/>! c 42) >>>> >>>> Or, if you've done the following >>>> >>>> (ns user >>>> (require [clojure.core.async :as async)) >>>> >>>> Then you can do this: >>>> >>>> `(async/>! c 42) >>>> >>>> Timothy Baldridge >>>> >>>> >>>> On Mon, Aug 5, 2013 at 5:52 AM, Tassilo Horn <ts...@gnu.org> wrote: >>>> >>>>> Alice <doff...@gmail.com> writes: >>>>> >>>>> > I didn't know that macros can do that! >>>>> >>>>> Then you might want to have a look at `macroexpand-1` and `macroexpand` >>>>> from clojure.core and `mexpand-1`, `mexpand`, and `mexpand-all` from >>>>> clojure.tools.macro. >>>>> >>>>> Bye, >>>>> Tassilo >>>>> >>>>> -- >>>>> -- >>>>> 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<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/**grou**ps/opt_out<https://groups.google.com/groups/opt_out> >>>>> . >>>>> >>>>> >>>>> >>>> >>>> >>>> -- >>>> “One of the main causes of the fall of the Roman Empire was >>>> that–lacking zero–they had no way to indicate successful termination of >>>> their C programs.” >>>> (Robert Firth) >>>> >>> -- >>> -- >>> 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<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<https://groups.google.com/groups/opt_out> >>> . >>> >>> >>> >> >> >> >> -- >> “One of the main causes of the fall of the Roman Empire was that–lacking >> zero–they had no way to indicate successful termination of their C >> programs.” >> (Robert Firth) >> > -- > -- > 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. > > > -- “One of the main causes of the fall of the Roman Empire was that–lacking zero–they had no way to indicate successful termination of their C programs.” (Robert Firth) -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. 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