Support recursion in Malli Schema definitions

[ikitommi]

Registry should support recursion, e.g.

{::age int?
 :child-age [:and ::age [:> 18]] ;; should be expanded
 :child [:map 
         [:name string?] 
         [:age :child-age] 
         [:friends [:set :child]]]} ;; recursion

[RafaeLeal]

Hello!
I have a different proposal, to be more flexible. So we don't require to be on registry to support recursion.
More info on Draft PR: #117

[ikitommi]

merged in master