On 7 November 2017 at 13:11, Timothy Baldridge <tbaldri...@gmail.com> wrote:
> I structure my code very explicitly. Normally the most common constructs > are put in a single file named after the library itself (not in core.clj, > do that half your files will be named core). > > https://github.com/halgari/odin/blob/master/src/com/tbaldridge/odin.clj > > Anything not in the API that should be unpublished to users is in other > namespaces that are imported and wrapped by vars in the main namespace. > This does several things: > > * Keeps the public interface in one place > * Allows for a different public interface than the private one. Notice how > Odin has its own version of `when`, pulling that off require a bit of > careful macro usage, so I'd rather write that once under a different name, > then rename it to `when`. > * It's now simple to say "anything in this namespace is public and will > not change" > > Core.async uses a pattern much like this, the API is in > clojure.core.async, most of the logic is under *.async.impl.*. > This is a great practice; it's how I do all my protocols/implementations now. > I don't recommend potemkin's import-vars at all. Clojure vars were not > meant to exist in more than one namespace at a time, so potemkin pulls of > its magic by linking two vars via watchers. This means that changes to one > var can cause side-effects in the other. In addition, bindings don't convey > properly (AFAIK), so if you using bindings on one var, the changes won't be > seen in the other var. Remember: import-vars doesn't actually import > anything, it simply creates a new var in the current namespace and links > the two via a two-way binding. It's quite the hack, imo. > Huh. Good to know. Will have to ponder ... d > So I have to agree with Potemkin's tagline on github: it's an idea that's > "almost good". > > Timothy > > On Tue, Nov 7, 2017 at 11:13 AM, Nick Mudge <n...@perfectabstractions.com> > wrote: > >> I am interested to know if people/you use import-vars to decouple the >> structure of code from its API. >> >> import-vars is from the potemkin library: https://github.com/ztellman/po >> temkin >> >> If you don't use import-vars how do you structure your code and provide >> an API? >> >> >> -- >> 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. >> > > > > -- > “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/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.
