I’ve got a couple questions for Alex Miller and/or the other Cognitect folks.
1. *Are single-segment namespaces still “bad” when it comes to registering specs under qualified keywords?* In the past, single-segment namespaces have been discouraged in the Clojure community—both because of Java interop concerns and because of the possibility of name-collision when combining projects. However, many of the spec examples I’ve seen have demonstrated registering specs under keywords qualified by a single-segment namespace. For example, the guide’s section on multi-spec <http://clojure.org/guides/spec#_multi_spec> defines :search/url and :error/message. Is that because namespace-qualifiers of specs shouldn’t be under the same constraints as namespaces used to organize code? I’m *guessing* not; it seems more likely that the single-segment namespaces have been used only to keep the code snippets straightforward and focused on spec, and that “real” code would alias (e.g.) my-company.my-project.search as search before defining a ::search/url spec. 2. *When designing, how do you decide whether to use a simple keyword or a qualified one?* There’s an interesting mix of the two in the official docs and in the code for spec itself. For example: the spec rationale <http://clojure.org/about/spec#_sequences> and guide <http://clojure.org/guides/spec#_sequences> both use simple keywords when labeling path components, and spec reports invocation errors for instrumented functions with maps that exclusively use qualified keys at the “root” but simple keywords appear as values <https://github.com/clojure/clojure/blob/clojure-1.9.0-alpha13/src/clj/clojure/spec/test.clj#L394-L402> and as keys in nested maps <https://github.com/clojure/clojure/blob/clojure-1.9.0-alpha13/src/clj/clojure/spec.clj#L205> . Thank you for your help. I really appreciate it. Best, Josh -- 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.
