Chlorine's datalog ideas

query.clj

;; What I want to do is something like this:
(def res
  (query '[:find ?meta
           :where 
           [?e :editor/contents "p/deferred"]
           [?e :editor/ns "foo.bar"]
           [?fqn :repl/fqn ?e]
           [?var :repl/var ?fqn]
           [?meta :repl/meta ?fqn]]))

;; This should generate maybe the following query:
(let [fqn (repl/eval "`p/deferred" {:namespace "foo.bar"})
      var (repl/eval "(var promesa.core/deferred)")
      meta (repl/eval "(meta #'promesa.core/deferred)")]
  meta)

;; This, all in ClojureScript, so promise / async support is a must!
;; meta should be the full metadata, so maybe I can even query it further...
;; Bonus points if I could generate queries on the flight, like:

(def res
  (query '[:find ?meta
           :where 
           [?e :editor/contents "p/deferred"]
           [?e :editor/ns "foo.bar"]
           [?fqn :repl/fqn ?e]
           [?eval-cmd (str "(meta (var " ?fqn "))")]
           [?meta :repl/eval ?eval-cmd]]))