On Wednesday, May 25, 2016 at 4:46:57 PM UTC-4, kovasb wrote: > > > On Wed, May 25, 2016 at 3:01 PM, Mike Rodriguez <mjr...@gmail.com > <javascript:>> wrote: >> >> I always really liked that Prismatic Schema had a "data representation" >> and that seems to be the Clojure-way anyways. I haven't dug into this too >> much yet, but I'm hoping that the Spec's do have some way to >> programmatically inspect them and utilize their structures for other >> purposes. >> > > Nothing precludes a system of data-described predicates. > > Just implement a datatype that implements IFn, in addition to some > collection interface. Basically something like Records, except that (f x) > will invoke the predicate described by f's data rather than looking up a > value in the collection that f also represents. > > How this would work out in practice I have no idea but it seems worth > trying. >
This is what the *spec-impl functions in clojure.spec do, essentially. But the only internal field a user can get at is 'form'. That's why I think the easiest way to programmatically inspect them, currently, is to call the 's/form' function (thanks, Timothy) and parse it back into a description of the internal fields. This will probably work for a lot of use cases. Seems a little roundabout, though. But, if my reading of the code is correct, the generators are hidden, so someone wanting to write code that, e.g., 'completes' partial data conforming to a spec would have to--well, I don't know what, exactly, but some kind of trickery. -- 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.
