Yes, you would need to actually create a spec implementation to improve the
error message in this case.
We haven't ever talked about spec'ing meta. In one sense I'd say the
general philosophy in Clojure is that meta is *not* part of the data (as in
how equality ignores meta), and thus it's not the purview of spec. But in
another sense I can see users creating a DSL to expect more from it.
Feel free to file an enhancement ticket to keep track of it.
On Tue, Oct 24, 2017 at 10:45 AM, Vitalie Spinu <spinu...@gmail.com> wrote:
>
> Thanks Alex. But then
>
> (s/assert ::o {})
>
> gives
>
> failed: (valid? ::meta-spec (meta %))
>
> which is not quite satisfactory.
>
> Is my understanding correct that for a more integrated approach one would
> need a
> custom Spec implementation? And if so, shouldn't it be part of the core
> then?
>
> >> On Tue, Oct 24 2017 06:12, Alex Miller wrote:
>
> > (s/def ::o #(s/valid? ::meta-spec (meta %)))
>
> > should work.
>
> > On Saturday, October 21, 2017 at 3:57:20 PM UTC-5, Vitalie Spinu wrote:
> >>
> >>
> >> Hi,
> >>
> >> If my meta spec looks like
> >>
> >> (s/def ::meta-spec (s/keys :req [::xyz]))
> >>
> >>
> >> how do I define a spec for objects whose meta conforms to `::meta-spec`?
> >>
> >> Thanks!
> >>
>
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