Clojurians Log v2

At least for me, your example of what you want to convert does not show up here.

oops; forgot to actually paste

sigh, now I forgot the exact context which I was asking around. let me circle back after I hit it again (won't be long since it's a top 3 pattern I keep hitting)

(m/match
 [{:type   "Operator"
   :fields [{:type "int32" :name "age" :meta [[:uiSlider 1 100] [:tooltip "MyTool"]]}
            {:type "uid_t" :name "id"  :meta [[:hidden]]}]}
  {:type   "Graph"
   :fields [{:type "vec<int32>" :name "nodes" :meta [[:hidden]]}
            {:type "graphDesc"  :name "meta"  :meta [[:hidden]]}]}]

  [[{:type !type :fields ?flds} ...]]
  (;; Can't use meander syntax to rewrite/pattern match inside of ?flds and have to resort to let destructurings
   )
  
 [[{:type !type :fields [{:type !fldtype :name !fldname :meta !meta}  ...]} ...]]
  (;; !fldtype,!fldname,!meta are no longer "grouped" together to the type they were in
   ))

so this is the problem distilled down

what I "discovered" last night is using (m/cata) to recurse down and creating a pattern match term for each "nesting level"

it's a decent compromise but i'm left wanting: - separating out to different terms erases context of which nested terms are allowed to appear where - found it harder to debug, both along user syntax errors and logic. What i'd end up doing is replace each pattern match term one by one starting from the top until i found which nesting level had an issue, then proceed from there

some mitigations to issues above: - discovered datawalk which has been a godsend and made the above process a lot less painful - since the nesting match terms are all together, it's not that bad. instead of instant grokking of the code, maybe it's 5-10 mins as one mentally reconstructs which terms are allowed to go where

as a real world ex: here's the code from last night: https://gist.github.com/ikrima/0353f3f1600a639797c63b2692c63334

I'm not 100% sure I followed all of what is going on. I think from what I do understand that you are probably doing the right thing by using cata. That is how we often deal with complicated patterns that need a fresh context for nested matches.