Konrad Hinsen <googlegro...@khinsen.fastmail.net> writes: > --On 23 janvier 2014 13:08:57 +0000 Phillip Lord > <phillip.l...@newcastle.ac.uk> wrote: > >>> The nstools library lets you do exactly that: >>> >>> https://code.google.com/p/clj-nstools/ >> >> That looks nice; why not open up the reference-map though, so that it >> would become extensible. > > That's a good idea. Just making it public is risky, as any module could mess > up the namespace definition system shared by everybody. You'd want something > like subclassing (sorry for the OO jargon).
You could use ::keyword rather than :keyword, or at least put this as a suggestion. You can't enforce this, but the :private true is a suggestion as well, and can be worked around. > The tricky part is how one would actually use such extensions. Current nstools > is already a bit messy, since you must put a (clojure.core/use 'nstools.ns) in > every source file before the (ns+ ...) form. An extension to nstools would > require a second line before (ns+ ...). What I'd prefer is an extension > mechanism in Clojure's built-in ns macro, which would permit a much nicer > implementation of nstools. Yep, this is true. When I wrote my toy namespace form, I eval'd arguments sequentially. So, you can then do something like this... ;; in namespace.imports (defn tawny-read [] (use-only (req tawny.read) 'defread)) ;; in "bob" (newnamespacet bob (req namespace.imports) (namespace.imports/tawny-read)) The point is that the (req namespace.imports) line requires namespace.imports before (namespace.imports/tawny-read) is eval'd. So the second form works as well. Of course, this gives a very procedural aspects to the form: the same thing backward: (newnamespacet bob (namespace.imports/tawny-read) (req namespace.imports)) would fail. The rest of my examples are here: https://github.com/phillord/namespace-experiments Phil -- -- 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.
